Disclosed in the present invention are an estimation method for the external static pressure of an airflow supply duct and a control method of an air conditioning system. A PM motor is subjected to constant-flow control so as to enable an airflow supply duct to have a constant flow mass (CFM) output. In the estimation method for the external static pressure (ESP), the ESP is calculated and obtained by using two variables, the constant flow mass (CFM) and the motor input power POWER, and the external static pressure can be estimated without adding any additional static pressure measuring apparatus. On the basis of not adding any extra cost and not modifying the product structure, feedback data of external static pressures of the airflow supply ducts at different places of an air conditioning system can be acquired in real time, which helps to know the working situation of the whole heating ventilation and air conditioning system and perform corresponding control, thereby improving the performance. The method has a simple mathematical calculation model.
Disclosed in the present invention are a permanent-magnet electric motor system and a soft start method. The permanent-magnet electric motor system comprises a electric motor unit and an electric motor controller. The electric motor controller comprises a power supply circuit, an electric motor microcontroller unit (MCU) and an inverter circuit, and the electric motor controller further comprises a sampling and driving circuit and an electronic switch Q1, wherein a control end of the electronic switch Q1 is electrically connected to a signal output end of the sampling and driving circuit. The electric motor is powered on and started up, and when the electric motor MCU does not output a signal to the inverter circuit, the inverter circuit stops working; the sampling and driving circuit samples a synchronization signal of an externally inputted alternating current, analyzes and processes the synchronization signal of the externally inputted alternating current, and then controls the turning-on/turning-off of the electronic switch Q1, so as to realize stepped charging of an electrolytic capacitor C1; and after charging of the electrolytic capacitor C1 is completed, the sampling and driving circuit sends out a signal to notify the electric motor MCU that charging of the electrolytic capacitor C1 has been completed, such that the electric motor can be started up.
A fan volute assembly and an induced draft fan using same. The fan volute assembly comprises a volute body; a plurality of mounting feet are provided on the outer sidewall of the volute body; each of the mounting feet is provided with a first through hole; extension blocks are mounted at the top ends and/or the bottom ends of the mounting feet; each extension block is provided with a second through hole; the first through hole corresponds to the second through hole; each extension block is used for lengthening the corresponding mounting foot; the extension blocks protrude out of the top surface and/or the bottom surface of the volute body; the height of the extension blocks can be set according to a mounting environment of the induced draft fan, so that the length of the mounting feet can be flexibly changed. Moreover, the manufacturing of the extension blocks is simple and low-cost, the length of the mounting feet of the fan volute assembly can also be changed without re-manufacturing a volute body, and the length of the mounting feet of the already produced fan volute assembly can also be changed by additionally providing the extension blocks. By means of simple transformation, the waste of resources can be avoided, and the increase of the use cost of customers can be avoided, which are in line with the principle of green production.
Disclosed in the present invention are a BLDC motor with a networking communication function, and an electrical device. The BLDC motor comprises a motor body and a motor controller, wherein the motor body comprises a stator assembly and a rotor assembly, and the motor controller comprises a circuit board, a microprocessor, an inverter circuit and a network communication module being integrated on the circuit board. The BLDC motor also comprises several address selection leads, wherein the several address selection leads are respectively connected to several input ports of the microprocessor, and a communication address is obtained by means of signals which are given to the several address selection leads, such that the microprocessor is in networking communication with the outside by means of the network communication module. A communication address can be changed without disassembling devices and motor controllers, and no additional address identifier is required when the devices and the motor controllers leave a factory, such that complete consistency can be achieved, and production is facilitated. In the present solution, one type of software is used, and no additional identifier is required, such that production is convenient, and the change of an address is flexible.
H02K 11/00 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
H02P 6/04 - Dispositions pour commander ou réguler la vitesse ou le couple de plusieurs moteurs
Disclosed in the present invention is an adaptive control method based on angle-of-advance calculation for an inductive brushless electric motor. When an electric motor works at a set rotation speed and a set power, an automatic operation software module having an angle-of-advance calculation formula in an electric motor controller is started, an angle of advance is finely adjusted, and related data is recorded; and after the electric motor has been running for a period of time and after the range of fine adjustment on the angle of advance reaches a set range, all running efficiency data of the electric motor during the fine adjustment process is compared, an angle of advance corresponding to the highest running efficiency is acquired to correct the angle-of-advance calculation formula, and related parameters of the corrected angle-of-advance calculation formula are stored in a readable and erasable memory for the electric motor to call during subsequent running. A large amount of resources and time are saved on; and the obtained angle-of-advance calculation formula can be determined as the optimal angle-of-advance formula of the electric motor under this condition, such that the efficiency of the electric motor is improved, and the product competitiveness is improved.
The present invention discloses a steam-water separator and a fuel cell system thereof. The steam-water separator is characterized by comprising a housing; a vapor-liquid separation cavity which is formed in the housing; an air inlet and an air outlet which are formed at the top of the housing and communicated with the vapor-liquid separation cavity; multiple flow channel baffles which are arranged in the vapor-liquid separation cavity; and a Tesla valve flow channel which is formed by multiple flow channel baffles in a gas flow channel between the air inlet and the air outlet. The workings of the Tesla valve flow channel equip the steam-water separator with the function of a check valve. The structure arrangement is appropriate and compact, parts are reduced, the space is saved, the production efficiency is improved, the cost is saved, and the reliability of the hydrogen circulation system of an ejector can be ensured.
B01D 45/08 - Séparation de particules dispersées dans des gaz ou des vapeurs par gravité, inertie ou force centrifuge par inertie par projection contre les diaphragmes séparateurs
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyte; Humidification ou déshumidification
Disclosed in the present invention are a fuel cell system and a control method therefor. The fuel cell system comprises a fuel cell stack module, a hydrogen supply system, an air supply system, and a cooling system, the cooling system comprising a water pump which drives a coolant to continuously flow to take away heat; and the fuel cell system is characterized in that the water pump is a water pump integrated with an expander, and comprises the expander, a water pump body, a water pump electric motor and a water pump controller, wherein the water pump controller controls the water pump electric motor to operate; the expander is coupled to one end of a rotating shaft of the water pump electric motor, and the other end of the rotating shaft of the water pump electric motor is coupled to the water pump body; and an exhaust tail gas resulting from an reaction is discharged using the fuel cell stack module, and is then input into the expander, the expander does work to drive the water pump body to operate, so as to provide power for the coolant of the cooling system to flow. The structural arrangement of the fuel cell system is rational and simple, the energy recovery problem of the exhaust tail gas of the fuel cell system is effectively solved, the utilization rate is high, and the efficiency of the fuel cell system is effectively improved.
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
A lead-out wire sheath and a motor applying same. The lead-out wire sheath comprises a lead clamp assembly, motor leads, and an injection molded body; the lead clamp assembly comprises an upper lead clamp fastener and a lower lead clamp fastener; the upper lead clamp fastener is provided with a plurality of lead slots for placing the motor leads; the motor leads are fixed in the lead slots by means of buckling between the lower lead clamp fastener and the upper lead clamp fastener; by means of the injection molded body, the upper lead clamp fastener, the lower lead clamp fastener, and the motor leads are integrally molded into one piece. The lead clamp assembly is used to replace first-time motor lead injection molding, thereby saving time, simplifying the technological process, increasing the tension between the motor leads and the lead clamp assembly, reducing the defective rate of products, and reducing manufacturing costs.
A strip-shaped stator core structure, a stator assembly and an electric motor. The strip-shaped stator core structure comprises several stator core units (1) connected to one another. Each stator core unit (1) comprises a yoke portion (11), and a tooth portion (12), which protrudes from an inner or outer side of the yoke portion (11), wherein only an outer surface of the tooth portion (12) is partially or completely covered with an electrophoresis protective film (2); and the yoke portions (11) of the several stator core units (1), which are connected to one another, are circularly rolled to be annular. In the strip-shaped stator core structure provided in the present solution, only the outer surface of the tooth portion (12) of each stator core unit (1) is covered with the electrophoresis protective film (2), while the yoke portion (11) of each stator core unit (1) is not covered with the electrophoresis protective film (2), such that the outline dimensions of the yoke portion (11) of each stator core unit (1) are not changed, which can effectively prevent the dimensional out-of-tolerance phenomenon of an annular stator core obtained after a strip-shaped stator core is circularly rolled, thereby effectively improving the manufacturing yield of stator cores, reducing the scrap rate of materials, and thus also reducing the manufacturing costs of electric motors.
Provided is a current distribution control method for a claw-pole motor. When an input instruction torque Tref is met, a reasonable distribution ratio of excitation current If of a rotor to current Iq of a stator armature winding enables a low total copper loss of a motor, and a distribution ratio relation is as follows: Iq=K×If, wherein Iq represents q-axis current in a rotor dq rotating coordinate system, and K represents a current distribution ratio. According to the method, in the case that nonlinear saturation of a stator and rotor magnetic circuit is considered, the total copper loss of the motor is almost minimum, the efficiency is almost optimal, calculation is simple and rapid, the influence of temperature on an efficient area is reduced, and the performance and operation reliability of the motor are improved.
H02P 21/22 - Commande du courant, p.ex. en utilisant une boucle de commande
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
Disclosed in the present utility model is an outer rotor motor, comprising an outer rotor, a stator assembly, a rotating shaft, a control circuit board, an end cover and a bearing seat. The bearing seat is mounted on the end cover; the stator assembly is sleeved outside the bearing seat; the outer rotor is sleeved outside the stator assembly; bearings are mounted at two ends of the bearing seat; the rotating shaft is supported on the bearings; the control circuit board is mounted at one end of the stator assembly; the end cover covers the outside of the control circuit board; the end cover comprises an end plate and a sleeve portion axially protruding from the edge of the end plate in an axial direction; a first protrusion protrudes from a first end surface of the end plate; the bearing seat is mounted on the first protrusion; a through hole axially passing through the end plate is formed in the center of the first protrusion; a plurality of positioning slots are recessed in the end surface of the first protrusion along the edge of the through hole; positioning protrusions matching the positioning slots protrude from the top end of the bearing seat. The present solution reduces the manufacturing difficulty of end covers, simplifies the manufacturing process of end covers, improves the production efficiency, and reduces the production cost; moreover, the motor is simple in structure and convenient to assemble.
H02K 1/2791 - Aimants montés en surface; Aimants sertis
H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
H02K 5/16 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
H02K 11/00 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection
Disclosed in the present utility model are a rotor assembly of a disc motor, and the disc motor. The rotor assembly comprises a rotor core and a plurality of brick-shaped magnetic shoes; a plurality of magnetic steel chambers distributed at intervals in the circumferential direction are formed on the rotor core; a central hole is formed in the center of the rotor core; the magnetic steel chambers are communicated with the central hole; the magnetic shoes are nested in the magnetic steel chambers; the magnetic steel chambers are arranged along a radial line S or inclines by an angle α with respect to the radial line S. The length L1 of the magnetic shoes is greater than the length L2 of the magnetic steel chambers. In the case that the height and the thickness of the rotor core are not changed, the structural deployment can further improve a magnetism gathering effect of a motor, increase the torque density of the motor, achieve a light and small size, and greatly reduce the motor cost.
H02K 1/27 - Noyaux rotoriques à aimants permanents
H02K 21/24 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants disposés axialement en face des induits, p.ex. dynamos de bicyclette du type moyeu
Disclosed is an external rotor motor, comprising a motor part and an electric control part. An edge of a bottom plate extends axially out of a sleeve part, an opening of the sleeve part being covered by a baffle, and multiple heat dissipation ribs being disposed protruding and surroundingly distributed along a circumferential direction of a rotating shaft; a first air duct is formed between two adjacent first heat dissipation ribs, a ventilation opening is formed in the middle of the baffle, and multiple through holes are formed at a position of the bottom plate close to the sleeve part, each through hole being located between two adjacent first heat dissipation ribs; the ventilation opening is in communication with the through hole by means of the first air duct, a housing is installed on the sleeve part, and a centrifugal fan blade is disposed between the housing of the electric control part and the sleeve part, the centrifugal fan blade being located below the ventilation opening of the baffle; one end of the rotating shaft extends out of the bottom plate and is connected to the centrifugal fan blade. Heat in the motor part and the electric control part can be rapidly drawn to the outside of the motor part and the electric control part, making a cooling effect of a component good, improving a heat dissipation effect, and making heat dissipation of a whole machine faster.
H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
14.
HEATING COMBINATION SWITCH VALVE AND FUEL CELL APPLYING SAME
A heating combination switch valve and a fuel cell. The heating combination switch valve comprises a heating sheet (1), and a first switch valve (2a) and a second switch valve (2b) that are independent of each other, wherein the first switch valve (2a) and the second switch valve (2b) each comprise a valve body (21), and an inlet (22) and an outlet (23) that are provided at two ends of the valve body (21); and the heating sheet (1) is attached to surfaces of the first switch valve (2a) and the second switch valve (2b), such that the heating sheet can heat the first switch valve (2a) and the second switch valve (2b). The valve has a compact structure, has reduced parts and a reduced volume, and is convenient to maintain.
F16K 49/00 - Moyens portés par ou sur les soupapes pour chauffer ou refroidir
H01M 8/00 - PROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES Éléments à combustible; Leur fabrication
15.
AIR COMPRESSOR SYSTEM WITH COOLING FUNCTION, FUEL CELL SYSTEM, AND CONTROL METHOD
An air compressor system with a cooling function, a fuel cell system, and a control method. The air compressor system comprises a driving electric motor (1), a primary air compression system (2), a secondary air compression system (3), and an intercooler (4), wherein a temperature sensor (32) is mounted at a third air outlet (31) of the secondary air compression system (3); the temperature sensor (32) measures the temperature of air discharged from the third air outlet (31) of the secondary air compression system (3), and sends the air temperature to a fuel cell system controller; and the fuel cell system controller controls a flow rate of a cooling liquid of a cooling circulation system input into the intercooler (4) according to a temperature signal to dynamically adjust the heat dissipation capacity thereof, thereby indirectly adjusting the temperature of the air discharged from the third air outlet (31) of the secondary air compression system (3), and forming closed-loop control. The temperature of the air discharged from the third air outlet (31) of the secondary air compression system (3) can be effectively controlled in order to meet the requirements of a fuel cell stack module, thereby improving the operating efficiency and reliability of the system.
Disclosed in the present utility model is a fuel cell module and boost DC-DC combined integrated power generation system, characterized by comprising a fuel cell module and a boost DC-DC module. The fuel cell module comprises a box body; a cell stack module, a water pump, a heater, and a hydrogen circulation pump are mounted in a first cavity in the box body; the box body comprises a box cover, a box frame, and a bottom plate; and the cell stack module is mounted on the bottom plate in a supporting manner. The boost DC-DC module comprises a DC-DC box body and a DC-DC electric component assembly; the DC-DC box body is mounted on the bottom surface of the bottom plate; a second cavity is formed between the DC-DC box body and the bottom plate; and the DC-DC electric component assembly is mounted in the second cavity. The structure integrates the fuel cell module and the boost DC-DC module, such that parts are reduced, the volume is reduced, the connections of external wires can also be reduced, the space utilization rate of a fuel cell system is increased, and the structural quality is effectively controlled.
Disclosed in the present utility model are an intercooler, and a fuel cell system using same. The intercooler comprises a heat exchanger, a flow guide end cover, an air inlet interface, and an air outlet interface; a second air inlet is formed at the top of the heat exchanger and a second air outlet is formed at the bottom; the air inlet interface is formed on the right side of the flow guide end cover; an air inlet cavity is formed inside the flow guide end cover; a first air outlet is formed at the bottom of the flow guide end cover; an inclined flow guide surface is arranged at the top of the air inlet cavity; the flow guide end cover is mounted at the top of the heat exchanger so that the first air outlet is communicated with the second air inlet; when an air flow enters the air inlet cavity from the air inlet interface on the right side of the flow guide end cover, the air flow is guided by the inclined flow guide surface to the second air inlet at the top of the heat exchanger, and is then discharged from the second air outlet formed at the bottom, thereby achieving a certain angle of turning; the air outlet interface is mounted on the second air outlet. The intercooler is compact in structure and high in degree of integration, realizes 90-degree turning of an air flow, and greatly facilitates integration and arrangement of the intercooler in the fuel cell system.
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
F28F 9/22 - Dispositions pour diriger les sources de potentiel calorifique dans des compartiments successifs, p.ex. aménagement des plaques de guidage
18.
MOTOR CONTROLLER PROVIDED WITH NOVEL GEAR SELECTION CIRCUIT AND BLDC MOTOR
Provided are a motor controller provided with a gear selection circuit and a BLDC motor, said motor controller comprising a gear selection circuit, a micro control unit (MCU), and an inverter circuit. Each gear signal M is split into two signals, which are inputted into a motor start-up signal input circuit and a motor stop signal input circuit, respectively, and the motor start-up signal input circuit and the motor stop signal input circuit output two level signals IO-a and IO-b to MCU, respectively. The motor start-up signal input circuit is provided with a threshold voltage U1, the motor stop signal input circuit is provided with a threshold voltage U2, and a potential difference is provided between the threshold voltage U1 and the threshold voltage U2. The MCU determines the start/stop state of the motor on the basis of the values of the two level signals IO-a and IO-b. Thus, the described motor controller can achieve accurate start/stop control and high reliability.
H02P 25/02 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par le type de moteur
H02P 25/16 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de moteur ou par des détails de structure caractérisés par des dispositions de circuit ou par le type de câblage
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
Disclosed in the present utility model is a fuel cell cooling and ventilating system, comprising an air compressor, an intercooler, a humidifier, a cell stack module and a box body, the box body being provided with a ventilation inlet and a ventilation outlet. The system is characterized in that the intercooler, the humidifier and the cell stack module are all arranged inside the box body; the air compressor is located outside the box body, and the air compressor conveys air to an inlet of the intercooler; cold air output from an outlet of the intercooler is split and output by a main path and a branch path; the cold air from the main path is treated by the humidifier and then sent to an air input port of the cell stack module; and the cold air from the branch path is sent to a cooling channel inlet of the air compressor, and then returns to the ventilation inlet of the box body from a cooling channel outlet of the air compressor so as to purge the box body, so that hydrogen and heat accumulated inside the box body are exhausted from the ventilation outlet. The system integrates cooling of the air compressor and ventilation of the box body, and thus has a simple structure, with less components to be arranged, thereby saving costs.
H01M 8/04014 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par combustion des réactifs
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyte; Humidification ou déshumidification
H01M 8/0662 - Traitement des réactifs gazeux ou des résidus gazeux, p.ex. nettoyage
20.
ROTOR OF DISC-TYPE PERMANENT MAGNET ELECTRIC MOTOR AND DISC-TYPE PERMANENT MAGNET ELECTRIC MOTOR USING SAME
Disclosed in the present invention are a rotor of a disc-type permanent magnet electric motor and a disc-type permanent magnet electric motor using same. The rotor comprises a first rotor iron core, a second rotor iron core, and a magnetic shoe, wherein the first rotor iron core comprises a first annular ring and first magnetic conduction blocks, and two adjacent first magnetic conduction blocks form a first groove; the second rotor iron core comprises a second annular ring and second magnetic conduction blocks, and two adjacent second magnetic conduction blocks form a second groove; a left magnetic steel slot and a right magnetic steel slot are formed between two side faces of the second magnetic conduction block and the two adjacent first magnetic conduction blocks, and the first top face of the second magnetic conduction block is lower than second top faces of the two adjacent first magnetic conduction blocks so as to form a top-face magnetic steel slot; the magnetic shoe comprises top magnetic steel, left magnetic steel and right magnetic steel; and the top magnetic steel is embedded into the top-face magnetic steel slot, and the left magnetic steel and the right magnetic steel are embedded into the left magnetic steel slot and the right magnetic steel slot. Hybrid magnetism gathering of the rotor is realized, a magnetism gathering effect of the electric motor is improved, the number of parts for assembling the rotor is reduced, the difficulty of the manufacturing process of the rotor is decreased, and the production efficiency of the rotor is increased.
Provided is a non-inductive vector control-based permanent magnet synchronous motor operation control method, which is characterized in that: during motor operation, when a shutdown control signal sent by an external device is received, a microprocessor MCU does not directly execute PWM pulse blocking on an inverter, but continues to output a pulse to the inverter for speed reduction, and constantly detects control signals sent by the external device; during speed reduction, when a real-time operation rotating speed Vi of the motor is greater than or equal to a set rotating speed Vref, the microprocessor MCU re-acquires a new starting control signal, then a control motor approaches a target rotating speed V or target torque T corresponding to the re-acquired new starting control signal from the current real-time operation rotating speed Vi; when the real-time operation rotating speed Vi of the motor is less than the set rotating speed Vref, the microprocessor MCU executes PWM pulse blocking, and shuts down and blocks pulses after speed reduction, so that the torque at a predetermined position of the motor can stably stop a load, thereby avoiding jitter, jerking, noise and the like, reducing current impact and prolonging the service life of the motor.
Provided are an electric motor controller and an electric motor using same. The electric motor controller comprises a power supply circuit, a micro control unit (MCU), an inverter circuit and a driving circuit, wherein the power supply circuit supplies power to the micro control unit (MCU), the inverter circuit and the driving circuit; and the power supply circuit comprises a rectification circuit and a single-ended flyback-type DC-DC conversion circuit, a mains supply alternating current input is connected to an input end of the rectification circuit, an output end of the rectification circuit is connected to the single-ended flyback-type DC-DC conversion circuit, and the single-ended flyback-type DC-DC conversion circuit outputs multiple paths of isolation power supplies (200) to supply power to the micro control unit (MCU), the inverter circuit and the driving circuit at a later stage. The influence of an instantaneous overcurrent or a voltage fluctuation on multiple paths of isolation power supplies is not large, such that the stability and reliability of the control over an IGBT/MOS switch tube are ensured.
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
A power conversion circuit and a motor controller. The power conversion circuit comprises a voltage stabilizing chip IC1, a voltage stabilizing chip IC2, a capacitor C2, a capacitor C3 and a capacitor C4. An input direct current power supply VCC is separately connected to pin 3 of the voltage stabilizing chip IC1 and pin 3 of the voltage stabilizing chip IC2; pin 1 of the voltage stabilizing chip IC2 is grounded GND; pin 1 of the voltage stabilizing chip IC1 is connected to pin 2 of the voltage stabilizing chip IC2; the capacitor C2 is connected between pin 2 of the voltage stabilizing chip IC1 and the pin 2 of the voltage stabilizing chip IC2; the capacitor C3 is connected between the pin 1 of the voltage stabilizing chip IC2 and the pin 2 of the voltage stabilizing chip IC2; the capacitor C4 is connected to the pin 2 of the voltage stabilizing chip IC1 and the pin 1 of the voltage stabilizing chip IC2; a first output power supply +VSS is led out of two ends of the capacitor C2; a second output power supply -VSS is led out of two ends of the capacitor C3; a third output power supply +VEE is led out of two ends of the capacitor C4, so that multiple output power supplies are high in voltage precision and high in stability. The power conversion circuit provides a power supply for the power conversion circuit, thereby improving the working stability of a motor.
H02M 3/10 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
24.
POWER SUPPLY CIRCUIT FOR MOTOR CONTROLLER, AND MOTOR CONTROLLER
The present utility model discloses a power supply circuit for a motor controller, and the motor controller, comprising a three-phase filter circuit, a three-phase surge protection circuit, a three-phase rectifier circuit, a reactor L1 and an electrolytic capacitor. A three-phase AC mains input (U, V, W) is filtered by the three-phase filter circuit, passes through the three-phase surge protection circuit, and then enters an input end of the three-phase rectifier circuit. After the reactor L1 regulates a power factor, an output end of the three-phase rectifier circuit charges the electrolytic capacitor and forms a DC bus voltage (Vbus) for output. The power supply circuit is effectively resistant to the impact of a 6 kV surge, has strong anti-interference capability, can protect electronic components from being easily damaged, and can improve the stability and reliability of the motor controller.
An electric motor controller and an outer rotor electric motor using same. The electric motor controller comprises a controller housing, a power supply circuit board and a control circuit board. The controller housing comprises a first mounting platform, a second mounting platform and a side wall, wherein the first mounting platform is located at the top of the side wall, and the second mounting platform is located in the middle of the side wall; the first mounting platform and the side wall enclose an upper cavity, the control circuit board and the power supply circuit board are mounted inside the upper cavity from top to bottom, and the second mounting platform and the side wall enclose a lower cavity; and a rectifier bridge module extends out of the power supply circuit board, and the rectifier bridge module is attached to the second mounting platform to dissipate heat. A control box has a simple structure; and control boards, mounting cavities and mounting platforms having a uniform specification and size can be used for electric motors having different sizes, powers and volumes, such that the standardization and generalization of parts is achieved, the design and the production efficiency are improved, while the cost is reduced and management is simplified, and it is ensured that the heat dissipation effect of a high-power device is good, thereby meeting heat dissipation requirements of a high-power electric motor.
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
H02K 5/16 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
H02P 6/00 - Dispositions pour commander les moteurs synchrones ou les autres moteurs dynamo-électriques utilisant des commutateurs électroniques en fonction de la position du rotor; Commutateurs électroniques à cet effet
26.
PHASE LOSS DETECTION CIRCUIT FOR THREE-PHASE POWER SOURCE, AND ELECTRIC MOTOR CONTROLLER FOR BLDC ELECTRIC MOTOR
A phase loss detection circuit for a three-phase power source, and an electric motor controller for a BLDC electric motor. The detection circuit comprises three rectification circuits, a step-down circuit and a comparison circuit, wherein input ends of the three rectification circuits are respectively connected to three-phase input power sources U, V, W, and output ends of the three rectification circuits are connected together to serve as an input end of the step-down circuit; and an output end of the step-down circuit is connected to an input end of the comparison circuit, and an output end of the comparison circuit serves as a phase loss signal output end of a three-phase power source. When it is detected that a phase loss occurs in an input power source, a shutdown operation can be performed immediately, thereby protecting a component and improving the stability and reliability of a circuit; and a circuit structure is simple.
G01R 31/42 - Tests d'alimentation d'alimentations en courant alternatif
G01R 29/16 - Mesure de l'asymétrie des réseaux polyphasés
H02H 7/09 - Circuits de protection de sécurité spécialement adaptés pour des machines ou appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou ligne, et effectuant une commutation automatique dans le cas d'un chan pour moteurs dynamo-électriques contre une interruption de phase
Disclosed is a disk-type permanent magnet electric motor, comprising a stator assembly and a rotor assembly, wherein the stator assembly and the rotor assembly are arranged one above the other to create an axial magnetic coupling, the stator assembly comprises a stator iron core, the stator iron core comprises a yoke portion and a plurality of tooth portions, a wire embedding slot is formed between two adjacent tooth portions, there are n wire embedding slots, and an outer diameter of the stator iron core is D; the rotor assembly comprises a rotor disk, a plurality of rotor iron cores, and a plurality of permanent magnets; the rotor iron core is mounted on the rotor disk; one permanent magnet is embedded between two adjacent rotor iron cores; the width H of a slot opening of the wire embedding slot meets H ≥ sin(360°/2n)*D; the stator iron core is of an open slot structure, and the width of a slot opening is correspondingly designed according to the size of the stator iron core; the amount of silicon steel used in a stator can be reduced, and thus the manufacturing cost is reduced; and an included angle α is formed between a radial line of the permanent magnet and that of the rotor assembly, that is, the rotor assembly uses an inclined slot design, such that torque pulsation of the disk-type permanent magnet electric motor can be lowered, the operating efficiency of the electric motor is improved, and the noise of the electric motor is reduced.
Disclosed in the present utility model is a direct-current brushless motor controller having a lightning protection and surge protection circuit, comprising a rectifier module, an inverter circuit, an energy storage capacitor C1, a direct-current reactor L1, and a microprocessor. An output end of the rectifier module is connected to the energy storage capacitor C1; both ends of the energy storage capacitor C1 are connected to the inverter circuit; a lightning protection and surge protection circuit is provided between the energy storage capacitor C1 and the rectifier module; the lightning protection and surge protection circuit comprises a differential-mode protection circuit and a primary common-mode protection circuit; the differential-mode protection circuit is connected in parallel to both ends of the direct-current reactor L1; the primary common-mode protection circuit is connected between a positive electrode output end A and a negative electrode output end F of the rectifier module. Since a discharge phase of the direct-current reactor L1 has an impact effect on an entire control circuit, the differential-mode protection circuit and the primary common-mode protection circuit are utilized to effectively prevent the occurrence of overvoltage damage in the rectifier module caused by high-voltage impact, thereby protecting the motor controller so that the motor controller is not prone to damage, and improving the stability and reliability of the motor controller.
H02M 5/42 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p.ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02P 6/00 - Dispositions pour commander les moteurs synchrones ou les autres moteurs dynamo-électriques utilisant des commutateurs électroniques en fonction de la position du rotor; Commutateurs électroniques à cet effet
H02H 9/04 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension
29.
ELECTRIC MOTOR STATOR PUNCHING SHEET AND ELECTRIC MOTOR USING SAME
Disclosed are an electric motor stator punching sheet and an electric motor using same. A central hole is provided in the middle of the stator punching sheet, the stator punching sheet comprises an annular yoke part and stator tooth parts, and a wire embedding groove is formed between two adjacent stator tooth parts; the stator tooth part comprises a tooth root part and a pole shoe part positioned at the end of the tooth root part; and the diameter D1 of an outer circle of the stator punching sheet ranges from 61.75 mm to 68.25 mm, the inner diameter D2 of the central hole ranges from 31.6 mm to 35 mm, the groove bottoms of the wire embedding grooves are evenly distributed along the circumference and are tangent to a circle, the diameter D3 of the tangent circle ranges from 54.72 mm to 60.48 mm, the tooth width L1 of the stator tooth part ranges from 4.75 mm to 5.25 mm, the thicknesses H1 of the pole shoe part ranges from 0.3* L1 to 0.45* L1, 8 stator tooth parts are provided, and 8 wire embedding grooves are provided. The structure is simple and the manufacturability is good, the size structure of a stator iron core is optimized, the thicknesses of the pole shoe part is increased, more uniform magnetic flux density distribution of all parts of the stator iron core is realized, and the phenomenon of local magnetic saturation is reduced, so that the working efficiency of the electric motor is improved, and the service life of the electric motor is prolonged.
H02K 1/16 - Noyaux statoriques à encoches pour enroulements
H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p.ex. avec des conducteurs en barre disposés dans des encoches
Disclosed in the present utility model are a stator punching piece, a stator assembly applying same, and an electric motor. The stator punching piece comprises an annular yoke portion and stator teeth portions; wire embedding grooves are formed between the stator teeth portions; there are 36 wire embedding grooves; a center hole is provided on an the inner side of each stator teeth portion; the outer diameter D2 of the annular yoke portion is in the range of 155 mm to 165 mm; the inner diameter D3 of the center hole of the stator teeth portions is in the range of 89 mm to 99 mm; the bottoms of the wire embedding grooves are uniformly arranged along the circumference and are tangent to a circle; the tangent circle diameter D1 is in the range of 122.9 mm to 132.9 mm; the teeth width L4 of the stator teeth portions is in the range of 3.6 mm to 4.4 mm; the groove opening width L1 of the wire embedding grooves is in the range of 1.6 mm to 2.4 mm; the groove shoulder width L2 of the wire embedding grooves is in the range of 4.02 mm to 4.82 mm; the inner groove height H1 of the wire embedding grooves is in the range of 11.4 mm to 13.4 mm; and the bottom width L3 of the wire embedding grooves is in the range of 6 mm to 7 mm. Upon calculation, under the same conditions and by using the above structure, the fabrication costs for an electric motor are reduced by approximately 7% on the premise that the energy efficiency and output power of the current electric motor are guaranteed to be unchanged. In other words, insofar as the overall performance of the electric motor is unchanged, the fabrication costs for the electric motor can be effectively reduced.
A direct-current induced draft fan, comprising a volute (1), a wind wheel (2), and a motor (10). The motor (10) is mounted at the top end of the volute (1); the motor (10) comprises a motor body (3) and a motor controller (4); the wind wheel (2) is mounted in the volute (1); the motor (10) drives the wind wheel (2) to rotate; the motor controller (4) is located on one side of the motor body (3) and is mounted on the motor body (3) by means of locking assemblies (5); the thickness of the motor controller (4) extends from the top of the motor body (3) to the volute (1). The overall structure of the fan is compact, the overall axial length of the induced draft fan is decreased, the overall occupied space of the induced draft fan is reduced, and load mounting is facilitated.
Provided are a volute fan and an exhaust fan using same, comprising a volute (21), a centrifugal wind wheel (22), and a motor (23); the volute (21) comprises an upper end plate (211) and a volute side plate (212) extending from the edge of the upper end plate (211) toward one end; a cavity (213) used for holding the centrifugal wind wheel (22) is formed between the upper end plate (211) and the volute side plate (212); a first air inlet (2111) and a first air outlet (2121) are arranged on the upper end plate (211) and the volute side plate (212), respectively; a lateral beam support (2112) is arranged at the position of the first air inlet (2111) of the upper end plate (211); the motor (23) is mounted on the lateral beam support (2112); the structure has a simple mounting structure between the volute (21) and the motor (23), the structural arrangement is reasonable, the number of mounting component parts is reduced, and costs are reduced.
An HVAC system control unit and an HVAC system. The HVAC system control unit comprises a first functional module, i.e. a main control module (7) which is used for receiving a control signal of an external temperature controller, and controlling several relay modules (8), wherein the main control module (7) further communicates with an electric motor control unit; and second functional modules, i.e. the relay modules (8), wherein at least one relay is included and is used for controlling the start-up and shutdown of a compressor, a resistance wire or other external devices. Each of the functional modules is provided with an independent metal or plastic shell (1, 1b), the functional modules are connected by means of mutually fitted connection members, such that the power or a control signal is transmitted between the functional modules, and the functional modules are assembled and mounted to form the HVAC system control unit. The production mode is flexible and convenient, and has a high adaptability; and the research and development period can be shortened. The HVAC system control unit is quickly and conveniently produced, and has a relatively high operation reliability; and after-sales maintenance is facilitated, and the maintenance cost is reduced.
H02P 6/04 - Dispositions pour commander ou réguler la vitesse ou le couple de plusieurs moteurs
H02P 1/54 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques pour faire démarrer des machines dynamo- électriques ou des convertisseurs dynamo-électriques pour faire démarrer plusieurs moteurs dynamo-électriques
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques - Détails
F24F 11/00 - Aménagements de commande ou de sécurité
F24F 11/86 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F24F 11/70 - Aménagements de commande ou de sécurité - Détails de construction de tels systèmes
F24F 11/42 - Dégivrage; Prévention du gel des éléments extérieurs
G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
Disclosed is a novel motor structure. The present invention comprises a rotor assembly and a stator assembly, wherein the stator assembly comprises several E-shaped stator iron cores uniformly distributed in a circumferential direction, the several E-shaped stator iron cores being distributed on the periphery of the rotor assembly; the E-shaped stator iron cores each comprise a yoke portion, and a left pole arm, a middle pole arm and a right pole arm which extend out from the yoke portion, end portions of the left pole arms, the middle pole arms and the right pole arms respectively forming magnetic pole faces, the periphery of the rotor assembly is surrounded by several magnetic pole faces at intervals, and winding parts of coil windings wound on all the E-shaped stator iron cores are the same, i.e. the coil winding being wound on the middle pole arm of each E-shaped stator iron core or the coil winding being wound on both the left pole arm and the right pole arm of each E-shaped stator iron core. The present application uses an E-shaped stator iron core structure, so that a stator notch opening is small, and the distribution density of magnetic pole faces is increased, thereby reducing the rotating pulsation of the motor and increasing the efficiency of the motor.
Disclosed are a combined electric motor controller and a combination method therefor. The combined electric motor controller comprises a power source module, an electric motor control module and an I/O module, wherein one electric motor control module controls one electric motor body, comprises a microprocessor, an IGBT inversion component and a heat dissipation apparatus, receives the power supply of a VDC power source and an externally input control signal, and outputs a power source to the electric motor body, so as to control a rotation speed or a torque or an air volume; the I/O module is used for carrying out signal transmission between a system main control board or a peripheral device and the electric motor control module; and each functional module is provided with an independent metal or plastic shell and a circuit board located in the shell, the functional modules are connected to each other by means of mutually matched connecting pieces, and are used for transmitting the power source or the control signal between the functional modules, and the heat dissipation apparatus is mounted inside or outside of the shell. The production mode of the combined electric motor controller is flexible and convenient, the adaptability thereof is high, the research and development period thereof is shortened, production is quick and convenient, maintenance and replacement are convenient, and maintenance costs are reduced.
H02P 6/04 - Dispositions pour commander ou réguler la vitesse ou le couple de plusieurs moteurs
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques - Détails
36.
ELECTRIC MOTOR CONTROL UNIT HAVING REDUNDANT CONTROL AND ASSEMBLY METHOD THEREFOR
Disclosed are an electric motor control unit having redundant control and an assembly method therefor, comprising: a power supply module, connected to mains electricity and outputting a corresponding VDC direct-current power supply to power other modules; an electric motor control module, one electric motor control module controlling one electric motor body; an I/O module, used for signal transmission between a client mainboard or a peripheral device and the electric motor control module; a redundant control module, the function thereof being to activate one standby functional module when any of the functional modules described above fails, thus ensuring that a client system can still work smoothly; and the standby functional module, a module having same functions as a first functional module or a second functional module or a third functional module. The functional modules are assembled and mounted together to form the electric motor control unit, the production thereof is flexible and convenient, has strong adaptability, and reduces research and development cycles; the production is quick and convenient, operational reliability is increased, aftersales maintenance is facilitated, and maintenance costs are reduced.
H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
37.
INTER-COOLING AND HUMIDIFICATION APPARATUS AND FUEL CELL SYSTEM USED THEREBY
Disclosed are an inter-cooling and humidification apparatus and a fuel cell system used thereby. The apparatus comprises an air intake duct, a heat exchange apparatus, a humidification module and a sleeve shell, wherein the heat exchange apparatus is sleeved on the air intake duct; the humidification module is sleeved on the heat exchange apparatus; the sleeve shell is sleeved on the humidification module; one end of the sleeve shell is provided with a first air flow outlet; dry hot air enters from one end of the air intake duct, flows out in a radial direction, and is subjected to temperature reduction treatment in the heat exchange apparatus and humidification treatment in the humidification module to form low-temperature humid air; and the humid air flows out from the first air flow outlet. In the structure, the functions of inter-cooling and humidification are integrated, such that the structure is simple and compact, the amount of occupied overall layout space of a fuel cell system is small, the mutual contact area of the heat exchange apparatus and the humidification module is increased, an airflow circulation capability is increased, the overall efficiency of the fuel cell system is increased, and parts and costs are reduced.
H01M 8/04014 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par combustion des réactifs
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
38.
ROTOR STRUCTURE OF EXTERNAL ROTOR MOTOR, AND EXTERNAL ROTOR MOTOR APPLYING SAME
A rotor structure of an external rotor motor, and the external rotor motor applying same. The rotor structure comprises a rotor housing (1) and a plurality of permanent magnets; the rotor housing (1) comprises an end plate (11) and a sleeve housing (12) extending from the edge of the end plate (11); a cavity (13) is formed in the middle of the sleeve housing (12); the plurality of permanent magnets are circumferentially mounted on the inner wall surface of the sleeve housing (12) at intervals; a water dripping hole (14) is provided on the end plate (11); the water dripping hole (14) is communicated with the cavity (13); a hole plug (2) is mounted outside the water dripping hole (14); a drainage structure is provided on the hole plug (2); the drainage structure is communicated with the water dripping hole (14); a labyrinth sealing structure is formed between the drainage structure and the water dripping hole (14), so that the motor can work even in a severe environment. External sundries such as silt or rainwater can be prevented from entering the motor through the water dripping hole, the water draining effect is good, normal operation of the motor is guaranteed, and thus, the service life of the motor is prolonged.
H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p.ex. de l'eau ou des doigts
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
Disclosed in the present utility model is a plastic package motor having a fireproof structure, comprising a plastic package stator, a rotating shaft, a rotor assembly, an upper end cover, and a lower end cover. The rotating shaft is mounted on the rotor assembly; the rotor assembly is mounted in the plastic package stator; the upper end cover and the lower end cover are mounted together to form a second cavity; and the plastic package stator and the rotor assembly are mounted in the second cavity; the plastic package stator comprises a stator assembly, a wire clip, and a plastic package; the plastic package is wrapped outside the stator assembly and the wire clip, and part of the wire clip protrudes out of the plastic package; a raised portion protrudes outward from the side surface of the upper end cover; an accommodating cavity is formed inside the raised portion; the raised portion is internally provided with a wire outlet hole; the wire clip is located in the accommodating cavity and directly faces the wire outlet hole; a wire sheath is mounted in the wire outlet hole; and a lead-out wire passes through the wire sheath and is led out of the upper end cover. The wire clip facilitates protecting the lead-out wire during injection molding, and the raised portion increases the space inside the motor, thus facilitating accommodation of the wire clip and the wire sheath. The wire sheath can not only effectively protect the lead-out wire but is easy to mount, and thus, the production efficiency of the plastic package motor is improved.
Disclosed in the present invention are an ECM motor compatible with multiple universal interfaces, a heating, ventilation, and air conditioning (HVAC) system, and a signal conversion method. The ECM motor comprises a motor body and a motor controller. The motor controller comprises a control circuit board. The control circuit board comprises a power supply portion, a microprocessor, an IGBT inverter circuit, and multiple universal interface modules. The multiple universal interface modules refer to at least two of a multi-pin communication interface module, a multi-wire communication interface module, a multi-position control interface module, or a PWM signal communication interface module. According to the interface signal condition of an HVAC system to be connected, one universal interface module can be selected from the multiple universal interface modules so as to establish a communication mode connection between the microprocessor and the HVAC system. The connection between a control motherboard of the HVAC system and the motor can be well coordinated, the compatibility is improved, and great convenience is brought to the maintenance of the after-sales market.
Disclosed in the present utility model is an external rotor motor, comprising a rotating shaft, a stator assembly, an external rotor and a sleeve seat; the stator assembly comprises a stator iron core, an end insulation and a coil winding, the sleeve seat comprises a bottom plate and a sleeve protruding upward from the middle of the bottom plate, the external rotor comprises a housing sleeve and several permanent magnets mounted on an inner wall face of the housing sleeve, a cavity is provided in the housing sleeve, and a flange extends outward from an opening of the housing sleeve, a centrifugal fan is mounted at the bottom of the flange, and an air outlet is provided between the centrifugal fan and the bottom plate; a labyrinth air inlet is provided on the top of the housing sleeve, the labyrinth air inlet, the cavity and the air outlet are in communication, air enters the motor from the labyrinth air inlet and then is discharged from the air outlet, and when the motor is running, the external rotor rotates to drive the centrifugal fan to rotate together with the external rotor, and the centrifugal fan draws out of the air from the interior of the motor, so that the airflow circulates inside the motor in a directional manner so as to dissipate heat, effectively reducing the winding temperature, having good heat dissipation effect, and ensuring normal operation of the motor.
H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
Disclosed is a constant air volume induced draft fan comprising a volute (1), a wind wheel (2) and an electric motor (3), wherein the electric motor (3) is installed outside the volute (1) by means of an installation support (4); the electric motor (3) comprises an electric motor body and an electric motor controller; the electric motor body comprises a stator assembly (31), a permanent magnet rotor assembly (32), a rotating shaft (33) and an electric motor shell (34); the wind wheel (2) is installed in the volute (1); the electric motor (3) drives the wind wheel (2) to rotate; the electric motor controller comprises an electric motor operation parameter detection circuit and a microprocessor; and the microprocessor, according to an input target air volume value IN-CFM and a function relational expression P/a ＝ f(n/b) of constant air volume control, enables the induced draft fan to output a constant air volume by controlling the input power and rotating speed, wherein P is the electric motor input power, n is the electric motor rotating speed, a is a power proportionality coefficient, and b is a proportionality coefficient of the rotating speed. By increasing the power proportionality coefficient a and the rotating speed proportionality coefficient b, the induced draft fan can meet the requirements of different working environments.
Disclosed are a hydrogen circulating pump assembly and a fuel cell. The hydrogen circulating pump assembly comprises a hydrogen circulating pump (100), wherein the hydrogen circulating pump (100) comprises an electric motor, a wind wheel and a pump shell (1), a pump cavity is provided in the pump shell (1), the wind wheel is installed in the pump cavity, the electric motor drives the wind wheel to rotate, a gas inlet (11) and a gas outlet (12) are provided in the pump shell (1), the pump cavity is in communication with the gas inlet (11) and the gas outlet (12), the gas inlet (11) is connected to a heating device (2), and the gas outlet (12) is connected to a filtering device (3); and recovered gas is firstly treated by means of the heating device (2), then enters the hydrogen circulating pump (100), reaches the filtering device (3) from the gas outlet (12) of the hydrogen circulating pump (100), and is discharged after same is treated by means of the filtering device (3), such that the technical problem of water in a hydrogen circulating system being frozen when same is in a low-temperature state is solved, and extra power consumption of the whole system is reduced, the efficiency of the whole system is improved, energy is saved on, and the cost is reduced. The filtering device is connected to the gas outlet, such that ice particles are prevented from being output to a stack of the fuel cell without being completely melted, and the safety and reliability are better.
Disclosed in the present utility model are a fuel cell tail exhaust hydrogen concentration detection and mixing dilution device and a fuel cell. The device comprises a hydrogen concentration detection unit and a gas mixing injection dilution unit, wherein the hydrogen concentration detection unit comprises a tail exhaust main pipeline, a sampling branch pipeline, a gas-liquid separator and a hydrogen concentration sensor, the gas mixing injection dilution unit comprises an injection three-way pipe and a diluted gas introduction pipeline, a main inlet of the injection three-way pipe is connected to an upstream section of the tail exhaust main pipeline, a branch inlet of the injection three-way pipe is connected to one end of the diluted gas introduction pipeline, an outlet of the injection three-way pipe is connected to a downstream section of the tail exhaust main pipeline, an injection nozzle is arranged at the joint between the main inlet and the branch inlet, negative pressure is formed at the branch inlet under the action of the injection nozzle, external cold air enters the tail exhaust main pipeline by means of the diluted gas introduction pipeline to achieve a dilution effect, and the device is simple in structure, low in cost and high in reliability.
Disclosed is a fuel cell system, comprising a stack module (300), an electrical control assembly (400), a hydrogen path system (500), a cooling circuit system, and an air path system, wherein the hydrogen path system (500) comprises a stop valve (9), a proportional valve (8) and an ejector (6); high-pressure hydrogen passes through the stop valve (9), the proportional valve (8) and the ejector (6) and is then connected to a hydrogen input port of the stack module (300); and a hydrogen return output port of the stack module (300) is connected to a hydrogen return port of the ejector (6). The system is characterized in that at least one stage of a moisture separator is arranged between the hydrogen return output port of the stack module (300) and a hydrogen return ejection port (32) of the ejector (6); mixed gas which is discharged from the hydrogen return output port of the stack module (300) is treated and separated by the at least one stage of the moisture separator to obtain water and then enters the hydrogen return ejection port (32) of the ejector (6); and the moisture separator is provided with a moisture discharge port for discharging water. After moisture in the mixed gas is separated by means of the at least one stage of the moisture separator, the mass of the ejected mixed gas is reduced, such that the low-power hydrogen return requirement is met, the integration level is high, and installation is easy and convenient.
H01M 8/2484 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission externes
Provided is an induced draft fan, comprising a motor (1), a volute (2), a wind wheel (3), and a conversion interface (4). A cavity (21) used for accommodating the wind wheel (3) is disposed in the middle of the volute (2); an air inlet (22) and an air outlet (23) are disposed on the bottom and side surfaces, respectively, of the volute (2); the conversion interface (4) is mounted at the air outlet (23). The conversion interface (4) comprises an inlet section (41), a transition section (42), and an outlet section (43); the inlet section (41) and the outlet section (43) are located at the two ends of the transition section (42), respectively; the transition section (42) is inclined upward such that the positions of the outlet section (43) and the inlet section (41) are staggered; the inlet section (41) is a rectangular hollow frame; the inlet section (41) is composed of four side panels; the four side panels comprise an upper side panel (411), a lower side panel (412), a left side panel (413), and a right side panel (414). A boss (44) parallel to the upper side plate (411) is provided on the top of the inlet section (41); a groove (45) is formed between the boss (44) and the upper side plate (411); when the conversion interface (4) is mounted at the air outlet (23), the inlet section (41) is nested in the air outlet (23), and the upper top plate (231) of the air outlet (23) is inserted into the groove (45). The mounting structure of the induced draft fan is simple, the components are small, manufacturing costs are relatively low, and sealing tightness is good, improving the performance and efficiency of the fan and reducing safety hazards caused by air leakage.
Disclosed is an induced draft fan, comprising a volute (1), a wind wheel (2) and an electric motor (3), wherein the volute (1) comprises a volute casing (11) and a cover plate (12) mounted at the bottom of the volute casing (11), and an air inlet (121) is provided in the middle of the cover plate (12); the electric motor (3) comprises a rotating shaft (31), the front end of the rotating shaft (31) of the electric motor (3) extends into an inner cavity (10) of the volute casing (11) and is mounted together with the wind wheel (2); and the wind wheel (2) comprises a rear wheel disc (21) and blades (22), several blades (22) protrude from a bottom face (213) of the rear wheel disc (21), the several blades (22) are distributed at intervals in a circumferential direction around a mounting base (211), and an air channel (23) is formed between two adjacent blades (22). Each blade (22) comprises an inner side face (221) and an outer side face (222), wherein in the same blade (22), at least part of the inner side face (221) is inclined relative to the outer side face (222), and at least part of the inner side face (221) is inclined relative to the bottom face (213) of the rear wheel disc (21). Thus, pressure generated by the induced draft fan can be improved in an effective space, the pressure and the flow speed are uniform, surging flow is reduced, and loss caused by airflow nonuniformity in the volute can be reduced, thereby improving the operation efficiency of the induced draft fan and reducing the noise and vibration of the induced draft fan.
Disclosed are a compatible switching circuit board and an electrical equipment system using same. The compatible switching circuit board is mounted between an electrical equipment main control circuit board and a motor, and comprises a power supply circuit, a switching board microprocessor, a 16-pin jack, a signal conversion circuit, a 4-pin jack, a serial communication circuit, a DM motor interface circuit, and a DM motor jack. The 16-pin jack is connected to the switching board microprocessor by means of the signal conversion circuit, the 4-pin jack is connected to the switching board microprocessor by means of the serial communication circuit, and the switching board microprocessor is connected to the DM motor jack by means of the DM motor interface circuit. According to the compatible switching circuit board, connection between the electrical equipment main control circuit board and the motor can be well coordinated, compatibility is improved, great convenience is brought to maintenance in the after-sales market, and functions of the electrical equipment main control circuit board can be expanded.
H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p.ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
A fireproof plastic package motor, comprising a plastic package stator assembly (1), a rotor assembly (2), and a rotating shaft (3). The plastic package stator assembly (1) comprises a stator core (11), an end insulation (12), a coil winding (13), and a plastic package body (14). The plastic package body (14) wraps the stator core (11), the end insulation (12) and the coil winding (13). The rotating shaft (3) is mounted on the rotor assembly (2). A first cavity (10) is formed in the middle of the plastic package stator assembly (1). The rotor assembly (2) is mounted in the first cavity (10). The motor further comprises an upper end cover (41) and a lower end cover (42). The upper end cover (41) and the lower end cover (42) are mounted together to form a second cavity (40). The plastic package stator assembly (1) and the rotor assembly (2) are mounted in the second cavity (40). A part of the outer side face of the stator core (11) protrudes out of the outer side face of the plastic package body (14) to form a connecting portion (115), and the inner side face of the upper end cover (41) or/and the inner side face of the lower end cover (42) are in close contact with the connecting portion (115) to fix the plastic package stator assembly (1) in the second cavity (40). The plastic package body (14) has a small volume and uses less BMC plastic package material, thus the overall size of the motor is small. The plastic package stator assembly (1) is completely sealed in the second cavity (40) by the upper end cover (41) and the lower end cover (42), and the fireproof effect is thus good.
A parameterless position-sensorless permanent magnet synchronous motor control method based on MTPA. The control method comprises a current control mode and comprises steps: step 1, receiving a given current Idq* and a γ angle inputted by a user, and calculating Id_r* and Iq_r*; step 2, looking up a corresponding α angle in an MTPA data table according to the Id_r* and the Iq_r*; step 3, calculating Id_Ref and Iq_Ref by utilizing the α angle, the Id_r* and the Iq_r*; and step 4, obtaining θ(v) by inputting the current Iq_Ref and a feedback current Iq of real-time operation of a motor into a Phase-Locked Loop (PLL), and obtaining Vq by means of PI processing of the current Id_Ref and a feedback current Id of real-time operation of the motor. Because Vd=0，Vdq=Vq in an MTPA mode, Vα and Vβ can be obtained by using θv and Vdq, and current control can be achieved. According to the method, an algorithm is simplified, the operation is simple, the occupation of chip resources is reduced, the cost is reduced, and a bottleneck problem of high dependence on a motor resistance Rs, inductance Lq, Lq and magnetic flux λm is solved.
Disclosed are a volute assembly (1) and an induced draught fan using same. The volute assembly comprises a volute (10) and a cover plate (11) installed at the bottom of the volute, wherein an inner cavity (12) capable of installing a wind wheel is enclosed by the volute and the cover plate, an air inlet (111) is provided in the cover plate, an exhaust pipeline (13) extends out of a side face of the volute, an air outlet (130) is formed in the end of the exhaust pipeline, the exhaust pipeline comprises a connecting section (131), a diffusion section (132), and an installation section (133), one end of the connecting section is connected to the volute, the other end of the connecting section is connected to the installation section by means of the diffusion section, the air outlet is provided in the end of the installation section, and the inner diameter D1 of the diffusion section gradually increases from the connecting section to the installation section. The volute injection molding difficulty and injection molding cost are reduced, the service life of a volute mold is prolonged, and noise is reduced without changing the size of the air outlet.
Disclosed is a method for determining the stalled state of a permanent magnet synchronous motor under position sensor-free vector control, which comprises the following steps: step A: calculating the input power Pin and output power Pout of a motor; step B: calculating an error value ERR＝|Pin-K1×Pout|, where K is a coefficient; step C: determining whether the ERR is greater than or equal to a certain preset value P0, and if so, then returning to step A; if not, determining that the motor is in a stalled state, and proceeding to step D; step D: a microprocessor of the motor locks out a pulse signal outputted to an inverter. The described method may accurately determine a motor changing into a stalled state, and still prevents the motor from entering a steady-state closed loop state when changed into the stalled state, which enables the motor to be in a high-frequency small-amplitude oscillation state, perfects a protection strategy, effectively protects the motor, essentially solves the problem of determining the stalled state, and does not require modifications once a load is replaced, which brings great convenience to a user.
An air cooling and humidifying device for a fuel cell and a fuel cell to which same is applied. The air cooling and humidifying device comprises a humidifying module (1) and a middle cooling module (2), wherein the middle cooling module (2) and the humidifying module (1) are connected to each other by means of a fastening member; the middle cooling module (2) is provided with a high-temperature dry air inlet (21), a low-temperature dry air outlet (22), a cooling liquid inlet (23), and a cooling liquid outlet (24); the humidifying module (1) is provided with a low-temperature dry air inlet and a low-temperature wet air outlet (12); the low-temperature dry air outlet (22) is connected to the low-temperature dry air inlet; high-temperature dry air enters from the high-temperature dry air inlet (21), is cooled by the middle cooling module (2) and is then changed into low-temperature dry air and enters the humidifying module (1) for treatment, and is then changed to a low-temperature wet air and flows out from the low-temperature wet air outlet (12); a cooling liquid enters the inner part of the middle cooling module (2) from the cooling liquid inlet (23) for heat exchange and then flows out from the cooling liquid outlet (24). The described structure integrates the functions of a cooler and a humidifier. The structure is simple and compact, takes up a small amount of the overall layout space of a fuel cell system, and is convenient to install.
H01M 8/04029 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par des liquides
H01M 8/04119 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux avec apport simultané ou évacuation simultanée d’électrolyte; Humidification ou déshumidification
An induced draft fan, comprising a volute (1), a wind wheel (2) and a motor (3). The volute (1) comprises a volute housing (11) and a cover plate (12) installed at the bottom part of the volute housing (11); the volute housing (11) and the cover plate (12) enclose to form an inner cavity (13) in which the wind wheel (2) may be installed; a side surface (111) of the volute housing (11) extends out of an exhaust pipeline (15); the tail part of the exhaust pipeline (15) forms a volute exhaust port (18); the middle of the top part of the volute housing (11) is inwardly recessed for use in installing the motor (3); a volute tongue (16) is provided at a position inside of the inner cavity (13) close to the exhaust pipeline (15); the middle of the top part of the volute housing (11) is inwardly recessed so that the inner cavity (13) forms a first top surface (112) and a second top surface (113); a flow channel (17) is formed between the first top surface (112), the side surface (111) and the cover plate (12); both the first top surface (112) and the second top surface (113) are flat; and turning from the volute tongue (16) to the volute exhaust outlet (18) along the wind wheel (2), the width L of the first top surface (112) gradually increases, so that the cross-sectional area of the flow channel (17) gradually increases.
An adaptor for an induced draft fan, and an induced draft fan and a draft fan system using same; the adaptor (4) comprises a fitting section (41), a transition section (42) and an outlet section (43), the fitting section (41) and the outlet section (43) being respectively located at either end of the transition section (42); the fitting section (41) comprises an inner ring (411) and an outer ring (412), the top end of the outer ring (412) is connected to the transition section (42), and the tail ends of the inner ring (411) and the outer ring (412) are connected to a connecting plate (413); the adaptor (4) is mounted at an air outlet (16), and the inner wall surface of the inner ring (411) is tightly fitted with the outer surface of an air discharge pipe (15). The present invention simplifies the mounting structure, reduces the number of parts, and makes the mounting simple and efficient.
A volute assembly, an induced draught fan using same and a gas stove. The volute assembly comprises a volute (10) and a cover plate (11) installed at the bottom of the volute (10). An inner cavity (12) capable of installing a wind wheel is defined by the volute (10) and the cover plate (11). An air inlet (111) is formed in the cover plate (11), and an exhaust pipeline (13) extends out of the side surface of the volute (10). An air outlet (130) is formed at the end portion of the exhaust pipeline (13). The exhaust pipeline (13) comprises an inner pipe (131) and an outer pipe (132), the inner pipe (131) is connected to the side wall of the volute (10), the outer pipe (132) is provided outside the inner pipe (131), and the pipe diameter of the outer pipe (132) is larger than that of the inner pipe (131). A water storage cavity (100) is formed between the inner pipe (131) and the outer pipe (132), at least one first drain hole (141) is formed in the volute (10) close to the exhaust pipeline (13), and the water storage cavity (100) is communicated with the first drain hole (141) by means of a flow guide device. Due to the flow guide device, condensate water can flow into the first drain hole (141) rapidly from the water storage cavity (100), the first drain hole (141) is located in the volute (10), so that the first drain hole (141) is formed in the bottom of the flow guide device, facilitating water discharging.
A volute assembly, and an induced draft fan and a gas furnace using same. The volute assembly comprises a volute (10) and a cover plate (11) mounted at the bottom of the volute (10). The volute (10) and the cover plate (11) enclose to form an inner cavity (12) in which a fan wheel can be mounted. The cover plate (11) is provided with an air inlet (111). An air exhaust pipeline (13) extends out from the side surface of the volute (10). An air outlet (130) is formed at an end portion of the air exhaust pipeline (13). The air exhaust pipeline (13) comprises a connecting segment (131) and a diverging segment (132). The connecting segment (131) is connected to the side wall of the volute (10). The inner diameter of the diverging segment (132) is greater than the outer diameter of the connecting segment (131). A step plate (133) is formed between the connecting segment (131) and the diverging segment (132). An air guide pipe (2) is mounted on the step plate (133). The step plate (133), the diverging segment (132), and the air guide pipe (2) enclose to form a water storage cavity (100). The tail portion of the diverging segment (132) is provided with a water discharge pipe (134) communicated with the water storage cavity (100). The volute assembly features strong universality, a simple structure and simple manufacturing, and low manufacturing costs, can improve a product qualification rate, and can improve the performance of an induced draft fan by matching between air guide pipes of different air exhaust diameters and a volute.
Disclosed are an ejector and a fuel cell hydrogen intake regulation and hydrogen return device applicable thereto. The ejector comprises a nozzle, a mixing chamber, an ejector sleeve, an inner seal ring, and a fastening screw. The nozzle and the mixing chamber are fitted to two ends of the ejector sleeve, respectively. A wall surface at a middle portion of the ejector sleeve is provided with a gap that serves as an inlet of an ejection fluid. A first flow channel is disposed at a center of the nozzle to serve as a channel for a work-producing high-pressure fluid. The nozzle has one end provided with a high-pressure fluid inlet, and another end being a high-pressure jetting opening. The mixing chamber is provided with a mixing section flow channel and an expansion section flow channel. The work-producing high-pressure fluid jetted from the high-pressure jetting opening and the ejection fluid flowing into the gap are mixed in the mixing section flow channel, pass through the expansion section flow channel, and are then ejected. The structure enables standardized and systematic designs, thereby providing high design and machining precision for part structures, superior interchangeability, and a low cost. The invention enables assembly and replacement of the nozzle and the mixing chamber without changing the ejector sleeve, thereby meeting different performance requirements.
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
F04F 5/16 - Pompes à jet, p.ex. dispositifs dans lesquels le flux est produit par la chute de pression causée par la vitesse d'un autre fluide le fluide inducteur étant un fluide compressible déplaçant des fluides compressibles
An integrated air cooling structure and an integrated BSG system. The integrated air cooling structure comprises a shell, a centrifugal wind wheel (3) and a rotating shaft (7). An accommodating cavity (10) is formed in the shell, and the centrifugal wind wheel (3) is installed in the accommodating cavity (10). The centrifugal wind wheel (3) is installed on the rotating shaft (7), and the rotating shaft (7) drives the centrifugal wind wheel (3) to rotate. The shell is provided with an air inlet (42) and an air outlet (43), the air inlet (42) and the air outlet (43) being in communication with the accommodating cavity (10). A high-power device (1) is installed on the outer circumference of the shell; heat generated by the high-power device (1) is transferred to the shell through contact and taken away, and cold air flows in from the air inlet (42) to contact with an inner surface of the shell so as to take away heat and flows out from the air outlet (43). In the same space, the cooling capacity of a heat dissipation structure to a power device is improved. According to verification by simulation calculation, the thermal resistance between the power device and the environment can be reduced by 10% to 20%.
H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
Disclosed are a motor controller and a motor applying same. The motor controller comprises a control box and a control board mounted within the control box. The control box is provided therein with at least two cavities, one of which is configured as a circuit board mounting cavity of which the size matches that of the control board. The control board is mounted within the circuit board mounting cavity. The motor controller is structurally simple; by employing control boards and mounting cavities of a unified size, motors of different power levels and sizes can implement the standardization and universalization of parts and components, thus not only increasing design and production efficiency, but also reducing costs and simplifying management.
H02P 6/00 - Dispositions pour commander les moteurs synchrones ou les autres moteurs dynamo-électriques utilisant des commutateurs électroniques en fonction de la position du rotor; Commutateurs électroniques à cet effet
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
61.
METHOD FOR CONTROLLING SMOOTH START OF PERMANENT MAGNET SYNCHRONOUS MOTOR UNDER SENSOR-LESS VECTOR CONTROL
A method for controlling a smooth start of a permanent magnet synchronous motor under sensor-less vector control. After a permanent magnet synchronous motor is started, a mode thereof is set as a constant-torque operating mode or a constant-speed operating mode. The method comprises: open-loop control: driving, with Iq_max as a target value of a q-axis current, a motor to operate, and under the open-loop control, when an actual steady-state operating speed V of the motor reaches a first target speed V_ref1, entering a constant-speed closed-loop control mode; and a constant-speed closed-loop control stage: using a current PI control loop of a q axis to slowly converge a real-time detected current value Iq1 of the q axis to Iq0; and in the constant-speed closed-loop control mode, increasing the first target speed V_ref1 to the highest target speed V_max to control the motor to operate, and then entering a constant-torque control mode. The method can ensure a smooth and stable start, reduce the vibration and noise during motor operation and improve start reliability.
A volute assembly for an induced draft fan, and an induced draft fan. The volute assembly for an induced draft fan comprises a volute (1) and a bottom cover (2); a cavity (11) is formed in the middle of the volute (1); an air outlet port (13) is formed on the sidewall (12) of the volute (1); an installation step (15) is provided on the inner sidewall (14) at the bottom of the volute (1); the bottom cover (2) is sleeved on the bottom of the volute (1); an air inlet port (23) is formed in the middle of the bottom cover (2); the air inlet port (23) and the air outlet port (13) are in communication with the cavity (11); a first magnetic attraction body (3) is inlaid on the installation step (15); a second magnetic attraction body (4) is inlaid on the top surface (21) of the bottom cover (2); the volute (1) and the bottom cover (2) are installed and connected together by means of the magnetic coupling attraction action of the first magnetic attraction body (3) and the second magnetic attraction body (4).
Disclosed in the present invention is a dual shaft-extension motor, comprising a first motor assembly and a second motor assembly. The first motor assembly is connected to the second motor assembly by means of an intermediate end cover and a motor housing, the first motor assembly comprises a first stator assembly, a first rotor assembly, a first rotating shaft and a first front end cover, and the second motor assembly comprises a second stator assembly, a second rotor assembly, a second rotating shaft and a second front end cover; a first bearing seat is provided in the first front end cover, a third bearing seat is provided in the second front end cover, and a second bearing seat and a fourth bearing seat are correspondingly provided in the intermediate end cover; the first stator assembly and the second stator assembly are provided inside the motor housing; two ends of the motor housing are respectively connected to the first front end cover and the second front end cover; and the intermediate end cover is mounted and connected to the central part of the motor housing. Two motors are combined into one motor by means of the intermediate end cover, so that the dual shaft-extension motor has a great improvement in space, energy consumption, noise reduction and power distribution reasonableness, reducing design costs.
A BLDC motor, comprising a motor controller and a motor body. The motor body comprises a stator component, a rotor component, and a motor housing. The motor controller comprises a motherboard and a daughterboard. The motherboard comprises a motherboard microprocessor, an inverter circuit, a power supply circuit, and a detection circuit. The daughterboard comprises several unitary circuits integrated on the daughterboard. The daughterboard is used for being plugged into the motherboard of the motor controller to match a client control system interface signal. A port of the daughterboard employs a novel electrical specification, favors the matching of a signal with a client control system of a user, forms a standard of increased universality, and facilitates management and application promotion.
H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
H02P 6/08 - Dispositions pour commander la vitesse ou le couple d'un seul moteur
H04B 3/02 - Systèmes à ligne de transmission - Détails
H05K 1/14 - Association structurale de plusieurs circuits imprimés
H02P 7/28 - Dispositions pour réguler ou commander la vitesse ou le couple de moteurs électriques à courant continu pour réguler ou commander individuellement un moteur dynamo-électrique à courant continu en faisant varier le champ ou le courant d'induit par commande maîtresse avec puissance auxiliaire utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant des dispositifs à semi-conducteurs
Disclosed is a stator assembly and a winding method thereof. The stator assembly comprises a bar-shaped stator core, three-phase coil windings, and end insulators. In the bar-shaped stator core, stator core units are numbered from 1 to 12 in a direction extending outwards from a front surface of an inner arc surface and from the left to the right. The three-phase coil windings comprise a U-phase winding, a V-phase winding, and a W-phase winding. A first wire incoming pin, a second wire incoming pin, and a third wire incoming pin for winding the U-phase winding, the V-phase winding, and the W-phase winding are respectively provided on an upper end insulator of a third stator core unit, an upper end insulator of a fourth stator core unit, and an upper end insulator of a fifth stator core unit. A main wire outgoing pin of the three-phase windings is provided on an upper end insulator of a tenth stator core unit. The first wire incoming pin, the second wire incoming pin, and the third wire incoming pin correspond to respective stator core units, and all of the three-phase coil windings are led out from the main wire outgoing pin on the tenth stator core unit. The invention has a logical layout, facilitates winding and wiring, and reduces errors.
H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
H02K 3/38 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement autour des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
66.
PERMANENT MAGNET ROTOR ASSEMBLY AND ELECTRIC MOTOR
A permanent magnet rotor assembly and an electric motor. The permanent magnet rotor assembly comprises several permanent magnets (1), a rotor core component (2), a rotating shaft (3), and a plastic packaging body (4); the rotor core component (2) comprises a mounting bracket (21) and several magnetic conduction blocks (22); the mounting bracket (21) comprises an annular end plate (210) and several clamping blocks (211) axially protruding from one end surface of the annular end plate (210); the several clamping blocks (211) are distributed around the annular end plate (210) at intervals; a clamping groove (221) is provided on each magnetic conduction block (22); the several magnetic conduction blocks (22) are mounted by means of the fitting of the clamping blocks (211) and the clamping grooves (221) and form a center hole (24); a radial groove (23) is formed between adjacent two magnetic conduction blocks (22); the permanent magnets (1) are nested in the radial groove (23); the rotating shaft (3) penetrates through the center hole (24); the plastic packaging body (4) plastically and integrally packages the rotating shaft (3), the several permanent magnets (1), the mounting bracket (21), and the several magnetic conduction blocks (22). By fixing the several magnetic conduction blocks (22) and the permanent magnets (1) by using the mounting bracket (21), the present invention is good in whole structural strength, not easy to deform, good in injection molding quality, high in production efficiency, and low in rejection rate.
H02K 1/27 - Noyaux rotoriques à aimants permanents
H02K 1/30 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor utilisant des pièces intermédiaires, p.ex. des croisillons
67.
PLATE-PENETRATING PIPE JOINT WITH CHECK VALVE FUNCTION, AND FUEL BATTERY
A plate-penetrating pipe joint with a check valve function, and a fuel battery. The plate-penetrating pipe joint with a check valve function comprises a pipe joint (1) and a check valve device (2), wherein a pipeline cavity (11) is provided in the pipe joint (1), and the check valve device (2) is mounted in the pipeline cavity (11). The plate-penetrating pipe joint with a check valve function is simple in terms of structure, convenient to mount, low in terms of manufacturing cost and small in terms of occupied space; and the processing material and labor costs of the check valve device (2) are relatively low, and the assembling processes and parts are reduced.
F16L 5/00 - Dispositifs utilisés pour le passage des tuyaux, des câbles ou des conduits de protection au travers des murs ou des cloisons
F16L 29/00 - Raccords comportant des moyens pour couper le courant de fluide
F16K 15/03 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés et élément de fermeture à charnière
H01M 8/2484 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission externes
68.
FUEL CELL TAIL GAS HYDROGEN CONCENTRATION MEASUREMENT DEVICE, FUEL CELL, AND NEW ENERGY VEHICLE
A fuel cell tail gas hydrogen concentration measurement device, a fuel cell, and a new energy vehicle. The fuel cell tail gas hydrogen concentration measurement device comprises a tail gas main pipeline (5), a branch pipeline (4), a gas-liquid separator (2), and a hydrogen concentration sensor (1). The inlet (41) of the branch pipeline (4) is connected to the upstream section (51) of the tail gas main pipeline (5). An exhaust gas outlet pipe (2c), an exhaust gas inlet pipe (2d), and a condensate water outlet pipe (2e) are provided on the housing (20) in the gas-liquid separator. The exhaust gas outlet pipe (2c), the exhaust gas inlet pipe (2d), and the condensate water outlet pipe (2e) are communicated with a cavity. The outlet (42) of the branch pipeline (4) is connected to the exhaust gas inlet pipe (2d) of the gas-liquid separator (2). A hydrogen concentration sensor (1) is mounted on the gas-liquid separator (2). The measurement accuracy and reliability of the hydrogen concentration sensor (1) are improved, and the use environment of the hydrogen concentration sensor (1) is optimized. The ordinary hydrogen concentration sensor on the market can be used, and therefore, the costs are greatly reduced.
A gas-liquid separation device for a cell stack, and a fuel cell employing the same. The device comprises a main block (1) and an adapter plate (2), and at least one set of connection holes (21) are provided at the adapter plate (2). The main block (1) is provided with a main hydrogen channel (11) for hydrogen circulation, a main air channel (12) for air circulation, and a main coolant channel (13) for coolant circulation. The main hydrogen channel (11), the main air channel (12) and the main coolant channel (13) are vertically oriented and mutually separated. The main block (1) is provided with several hydrogen flow-separation channels (14), several air flow-separation channels (15), and several coolant flow-separation channels (16). An end of each hydrogen flow-separation channel (14) is connected to the main hydrogen channel (11), an end of each air flow-separation channel (15) is connected to the main air channel (12), and an end of each coolant flow-separation channel (16) is connected to the main coolant channel (13). The invention has a logical structural design. The configuration of the main channels and the flow-separation channels enables a logical layout, facilitates various inspections and maintenance work, and provides multiple useful functions.
H01M 8/2484 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission externes
Disclosed is a fuel cell with a novel box body, comprising a box body in which a galvanic pile module (61) and a fuel cell controller are installed. The box body comprises a bottom plate (1), a box frame (3) and a cover plate (5). The galvanic pile module (61) is installed on the bottom plate (1). The box frame (3) is formed of several end-to-end connected side plates (31), the bottom of the box frame (3) is provided with a lower opening (32), the top of the box frame (3) is provided with an upper opening (33), and the lower opening (32) of the box frame (3) is installed on the bottom plate (1). The box frame (3) encloses the periphery of the galvanic pile module (61). The cover plate (5) is installed on the box frame (3) and closes the upper opening (33). A lower sealing ring (2) is provided between the box frame (3) and the bottom plate (1), and an upper seal ring (4) is provided between the box frame (3) and the cover plate (5). The fuel cell is convenient to be assembled and has low cost; the box body has good universality.
A fuel cell cold start system and a cold start control method, the fuel cell cold start method comprising: in a hydrogen path system and a cooling loop system (10E), respectively installing temperature detection units (102A, 2B, 3C, 1D, 2D) and electric heating units (101A, 1B, 2C, 4D); the temperature detection units (102A, 2B, 3C, 1D, 2D) detect the temperature rise in the hydrogen path system and the cooling loop system (10E) and send a temperature signal to a fuel cell controller (5E); when the temperature is too low, the fuel cell controller (5E) controls the electric heating units (101A, 1B, 2C, 4D) installed in the hydrogen path system and the cooling loop system (10E) to power-on and heat until the temperature in the hydrogen path system and the cooling loop system (10E) reaches a predetermined temperature, and then the fuel cell is started. A low power consumption cold start is achieved by means of control, so there is no need to wait a long time for a cold start; the start is fast, the structure compact and easy to implement, production and assembly costs are low, and after-sales maintenance is simple and convenient.
H01M 8/04223 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides pendant le démarrage ou l’arrêt; Dépolarisation ou activation, p.ex. purge; Moyens pour court-circuiter les éléments à combustible défectueux
72.
HYDROGEN INTAKE ADJUSTING ASSEMBLY DEVICE FOR FUEL CELL AND FUEL CELL TO WHICH SAME IS APPLIED
A hydrogen intake adjusting assembly device for a fuel cell and a fuel cell to which same is applied, the hydrogen intake adjusting assembly device for a fuel cell comprising a manifold block (1A), an inner surface of the manifold block (1A) being provided with a flow channel through which hydrogen circulates, and the device being characterized in further comprising a first heating unit (101A) and first temperature sensor (102A) on the manifold block (1A). The temperature of a hydrogen intake valve assembly is detected by means of the first temperature sensor (102A), and the hydrogen intake valve assembly is heated at a suitable time by means of the first heating unit (101A), thereby achieving a cold start function.
H01M 8/04007 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur
H01M 8/04302 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible appliqués pendant des périodes spécifiques appliqués pendant le démarrage
A fuel cell comprises: a box (9); and a cell stack module (61) and a hydrogen circulation pump (62) disposed in the box (9). The cell stack module (61) is disposed on a bottom plate (91) of the box (9) by means of a stack fixing frame (10). A top installation plate (10C) is provided above the cell stack module (61) and disposed at a top end of the stack fixing frame (10), and is characterized by being provided with a hydrogen circulation pump controller (31), a fuel cell controller (32), a discharge resistor (33), a breakout board (34), and an interface adapter plate (35). The top installation plate (10C) is employed such that the fuel cell controller (32), the hydrogen circulation pump controller (31), the discharge resistor (33), the breakout board (34) and the interface adapter plate (35) are installed in the box (9), thereby meeting IP67 protection rating requirements as an integrated module, reducing the installation space of the entire system, and facilitates assembly, wiring, and debugging processes for the entire fuel cell.
Disclosed in the present utility model are a hydrogen circulation device for a fuel cell and a fuel cell to which same is applied, comprising a box body, a box cover, a stack module, the hydrogen circulation device, an air gas path system, a cooling system, a ventilation component and a hydrogen intake integrated manifold; the hydrogen circulation device comprises a hydrogen circulation pump; a heater and a temperature sensor are installed on the hydrogen circulation pump; the temperature of the hydrogen circulation device is detected by means of the temperature sensor, and the hydrogen circulation device is heated at a suitable time by means of the heater, thereby achieving a cold start function.
H01M 8/04014 - Dispositions auxiliaires, p.ex. pour la commande de la pression ou pour la circulation des fluides relatives à l’échange de chaleur Échange de chaleur par combustion des réactifs
H01M 8/04089 - Dispositions pour la commande des paramètres des réactifs, p.ex. de la pression ou de la concentration des réactifs gazeux
H01M 8/04302 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible appliqués pendant des périodes spécifiques appliqués pendant le démarrage
A rotor assembly (6) and a motor using same. The rotor assembly (6) comprises a rotor core (1), end rings (2) located on both end surfaces of the rotor core (1), and guide bars (3) connecting the two end rings (2); several guide bar installation grooves (14) are provided at intervals on the edge of the rotor core (1) in the circumferential direction; the guide bars (3) are located inside the guide bar installation grooves (14); a shaft hole (13) for installing a rotating shaft (4) is provided in the middle of the rotor core (1); the rotor core (1) is formed by alternately stacking at least two first sheet groups (11) and at least one second sheet group (12); each first sheet group (11) comprises a first yoke (111) and several first teeth (112) extending outward from the first yoke (111); the second sheet group (12) comprises a second yoke (121) and several second teeth (122) extending outward from the second yoke (121); some of or all of the second teeth (122) are recessed in a direction from the side to the shaft hole (13) to form heat dissipation grooves (15). The heat dissipation grooves (15) of the second sheet group (12) effectively increase the heat dissipation area of the rotor, and thus, the temperature rise of a motor is reduced, and the weight of the rotor core (1) is reduced, thereby reducing the design costs and transport costs of motors.
Disclosed is an ignition prevention flame-retardant plastic encapsulated motor, comprising a rotating shaft (1), a rotor assembly (2), a plastic encapsulated stator assembly (3), a front bearing supporting frame (4) and a rear bearing supporting frame (5). The plastic encapsulated stator assembly (3) comprises a stator core (31), a coil winding (32), an end insulation (33), and an injection molding shell (34). After the end insulation (33) is mounted on an end face of the stator core (31), the coil winding (32) is wound, coil exposure portions (321) are arranged at positions, on the two end faces of the stator core (31), of the coil winding (32) in a protruding manner; the rotating shaft (1) is mounted on the rotor assembly (2); the middle of the plastic encapsulated stator assembly (3) is provided with a first cavity (35), and the rotor assembly (2) is mounted in the first cavity (35); the front bearing supporting frame (4) and the rear bearing supporting frame (5) are respectively provided with bearing chambers (41, 51), with bearings (6) being placed in the bearing chambers (41, 51), and the rotating shaft (1) being supported on the bearings (6). The motor further comprises an inner fireproof cover (7), wherein the inner fireproof cover (7) covers the coil exposure portions (321), and the stator core (31), the coil winding (32), the inner fireproof cover (7) and the end insulation (33) are then integrally injected and molded by means of the injection molding shell (34).
Disclosed is an electric motor, comprising a rotary shaft, a rotor assembly, a stator core, a coil winding, a housing, two end covers and several bolts, wherein the rotor assembly is provided with several heat dissipation through holes, and one end face of the rotor assembly is provided with several air blades; and an upper end and a lower end of the housing are respectively provided with air inlet holes and air outlet holes. A first air deflector is arranged on a top face of the air blades to realize centrifugal exhausting; a center hole is provided in the middle of the first air deflector, and the center hole is sleeved on the rotary shaft; and a second air deflector is arranged between a top face of the first air deflector and the end cover, and the second air deflector is mounted inside the housing and mounted at the top of the air outlet holes, wherein the edge of the second air deflector is provided with a flange, and an outer side wall of the flange is tightly fitted with an inner wall of the housing. By means of the first air deflector, an airflow can be guided towards two sides of the housing of the electric motor or can be guided upwards, an air outlet is located at the bottom of the second air deflector, and the second air deflector guides the airflow towards the air outlet, so that the airflow inside the electric motor is circulated, thus effectively improving the internal heat dissipation effect of the electric motor.
H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
H02K 9/06 - Dispositions de refroidissement ou de ventilation par l'air ambiant s'écoulant à travers la machine comportant des moyens pour établir la circulation d'un agent de refroidissement avec des ventilateurs ou des dispositifs d'entraînement mûs par l'arbre de la machine
Disclosed is a cooling circulation system for a fuel cell. The system comprises a cooling system (10), the cooling system (10) comprising a cell reactor (5) used for power generation using an electrochemical reaction between air and hydrogen, a water pump (12), a heat dissipator (13), a constant-temperature three-way valve (14), and a pipeline. The cell reactor (5), the water pump (12), the heat dissipator (13) and the constant-temperature three-way valve (14) are connected through the pipeline, and at least part of the pipeline is a heating pipeline (15). The heating pipeline (15) is directly used for heating a coolant for the fuel cell, so as to not only optimize the heating and circulating performance of the coolant, but also improve the operating efficiency of the fuel cell. In addition, the system has a simple and compact structure, and does not increase the volume of the fuel cell, thereby saving on the space and costs of the fuel cell.
Disclosed in the present invention are a novel ventilation assembly and a fuel cell using same. The novel ventilation assembly comprises an air pipe (1) and at least one fan unit (2); the fan unit (2) comprises a fan housing (21), an axial blower (22), and an air direction adjustment plate (23); an air inlet (11) is formed at one end of the air pipe (1), and the fan housing (21) is connected to the other end of the air pipe (1); a cavity (210) is provided within the fan housing (21), the axial blower (22) being mounted in the cavity (210) of the fan housing (21); and an air entering port (211) is provided at an end of the fan housing (21), the air direction adjustment plate (23) being mounted at an end face (212) of the air entering port (211). Said ventilation assembly has a high protection level and a small volume, is easy to mount, has a large ventilation angle, achieves uniform air blowing, saves power, and has low noise.
H01M 8/2484 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission externes
F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p.ex. pour la ventilation
Disclosed is a fuel cell, comprising a box, a box lid, a cell stack module, a cell-stack gas inlet valve set, a cell-stack gas outlet valve set, a hydrogen circulation device, an air inlet system and a cooling system, wherein the cell stack module, the cell-stack gas inlet valve set and the cell-stack gas outlet valve set are all mounted inside a cavity of the box; the air inlet system and the cooling system are mounted outside the box; and the hydrogen circulation device is mounted inside the box. Residual hydrogen from the cell-stack gas outlet valve set is delivered into an inlet of the hydrogen circulation device; and the residual hydrogen is delivered to the cell-stack gas inlet valve set via an outlet of the hydrogen circulation device and into the cell stack module again. The structure of the box is simplified, and the gas tightness of the box is improved.
Disclosed are a volute fan and a fan system using same. The volute fan comprises a volute (1) and a wind wheel (2), wherein the volute (1) comprises an upper end face plate (11), a lower end face plate (12), and a side face plate (13) connected between the upper end face plate (11) and the lower end face plate (12), with the upper end face plate (11), the lower end face plate (12) and the side face plate (13) enclosing a cavity (14), the wind wheel (2) being mounted in the cavity (14), the lower end face plate (12) being provided with a first air inlet (15), and the side face plate (13) being provided with a first air outlet (16); and the wind wheel (2) comprises an upper wind plate (21), a lower wind plate (22), and several blades (23) connected between the upper wind plate (21) and the lower wind plate (22), the middle of the lower wind plate (22) being provided with a second air inlet (24), an air channel (25) being formed between two adjacent blades (23), the first air inlet (15), the second air inlet (24), the air channel (25) and the first air outlet (16) being in communication with the cavity (14), each blade (23) comprising an inner blade segment (231) and an outer blade segment (232), the blade (23) that radially extends beyond the upper wind plate (21) being in the outer blade segment (232), the blade that is located within the second air inlet (24) being in the inner blade segment (231), and the distance H1 between a top face (2321) of the outer blade segment (232) and a first inner side face (111) of the upper end face plate (11) gradually increasing from inside to outside in a radial direction. The volute fan can avoid flow separation loss and sudden changes in the flow velocity and pressure, and can also avoid turbulent flow and noise and vibration.
An axial flow fan wheel and an axial flow fan, the axial flow fan wheel comprising a hub (2) and a plurality of blades (1), the blades (1) each comprising a pressure surface (11) and a suction surface (12), the pressure surface (11) and the suction surface (12) being enclosed by an inner edge (13), an outer edge (14), a front edge (15), and a tail edge (16), and the inner edge (13) being connected to the hub (2); in the orthographic top view, the maximum distance of the centre O of the hub (2) to the outer edge (14) of each blade (1) is the outer diameter R of the impeller, the intersection of the front edge (15) and the inner edge (13) is A1, and the distance from A1 to O is R1, the front edge (15) and the outer edge (14) are connected by an arcuate side (17), and the intersection of the arcuate side (17) and the front edge (15) is A2, and the distance from A2 to O is R2; the blades (1) have the greatest circumferential length at A2, and 0.35R≤R1≤0.45R, and 0.8R≤R2≤0.9R are met. The present axial flow fan has high wind speed.
Disclosed in the present invention is a fuel cell, comprising a box body, a box cover, a cell stack module, a hydrogen circulation pump, an air path system, a cooling system, a fuel cell control system, a ventilation component, and a hydrogen intake integrated manifold. The cell stack module occupies a position on one side of a first cavity of the box body, and the fuel cell control system is placed above the cell stack module; a hydrogen inlet valve, an air inlet valve, a cooling liquid inlet valve, the hydrogen circulation pump, a hydrogen outlet valve, an air outlet valve, and a cooling liquid outlet valve are arranged at positions on the other side of the first cavity of the box body; an opening is dug on one side surface of the box body, an air outlet is provided on a side surface of the box body on the side opposite to the opening, the ventilation component is mounted at the opening, and the air path system and the cooling system are mounted on a first bottom plate at the outer side of the box body. The layout is reasonable, the structure is compact, the product assembly is simple, the costs are low, and the quality is effectively controlled.
H01M 8/2465 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible
H01M 8/2475 - Enceintes, boîtiers ou récipients d’empilements d’éléments à combustible
H01M 8/2484 - Groupement d'éléments à combustible, p.ex. empilement d'éléments à combustible - Détails des groupements d'éléments à combustible caractérisés par les collecteurs d’admission externes
H01M 8/04291 - Dispositions de gestion de l’eau dans les systèmes d’éléments à combustible à électrolyte solide
H01M 8/04298 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible
The present utility model discloses a DC brushless outer rotor motor, comprising a base, an outer rotor assembly, a shaft, a stator assembly, a control panel, and a Hall circuit board. The outer rotor assembly and the shaft are fixedly connected to each other. The stator assembly is sleeved inside an inner cavity of the outer rotor assembly. A sleeve seat protrudes from a middle portion of the base. The stator assembly is connected to the sleeve seat, and the shaft is supported in the sleeve seat. A rear cover is mounted on the base, and an accommodation cavity is formed between the base and the rear cover. A first through hole is formed in the base. The accommodation cavity is internally provided with an insulation seat. A protrusion protrudes from the bottom of the insulation seat toward the inner cavity, and is embedded in the first through hole. A recess is formed in the insulation seat above the protrusion. The control panel is mounted in the insulation seat. The Hall circuit board is mounted in the recess, and at least one Hall element is disposed at the bottom of the Hall circuit board. The Hall element is disposed near a bottom surface of the recess. The control panel and the Hall circuit board are easily mounted. The distance between the respective Hall elements and a magnetic tile is the same, such that the data collected by the Hall elements is more accurate.
H02K 29/08 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec des dispositifs détecteurs de la position utilisant des dispositifs à effet magnétique, p.ex. dispositifs à effet Hall ou magnéto-résistances
H02K 5/18 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des nervures ou des ailettes pour améliorer la transmission de la chaleur
H02K 1/27 - Noyaux rotoriques à aimants permanents
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
85.
PRESSURE MEASUREMENT INTERFACE ASSEMBLY USED ON VOLUTE CASING AND DRAUGHT FAN USING SAME
A pressure measurement interface assembly used on a volute casing and a draught fan using same. The pressure measurement interface assembly comprises a pressure measurement interface (1) and a mounting metal sheet (2). A pressure measurement channel (10) is formed in the middle of the pressure measurement interface (1). The pressure measurement interface (1) comprises a main body section (11). An air pipe mounting section (12) axially extends out of the top end of the main body section (11). A flange (13) radially extends out of the bottom end of the main body section (11). The mounting metal sheet (2) is sleeved on the main body section (11) and forms a slot (14) with the flange (13). The pressure measurement interface assembly has a simple structure, is low in manufacturing costs, is easy to process, and is convenient to mount.
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
F04D 29/00 - POMPES À DÉPLACEMENT NON POSITIF - Parties constitutives, détails ou accessoires
Disclosed by the present invention are a fuel battery and a control method therefor, the fuel battery comprising a battery reactor, a cooling loop for cooling the battery reactor, and a fuel battery system controller for controlling the battery reactor and the cooling loop to operate, and the cooling loop comprising a cooling pipeline that runs through the battery reactor, a water pump, a radiator, a heater, and a thermostatic three-way valve; the fuel battery is characterized in that: a coolant replenishing loop is connected between a first water outlet of the cooling pipeline and a first water inlet of the cooling pipeline, a first temperature sensor is provided at the first water inlet of the cooling pipeline, a second temperature sensor is provided at the first water outlet of the cooling pipeline, and according to coolant temperature data detected by the first temperature sensor and the second temperature sensor, the fuel battery system controller controls the thermostatic three-way valve, the water pump and the heater to operate. When the fuel battery is started up at a low temperature, the coolant is heated by means of the heater so that the temperature of the coolant rises quickly, thereby shortening cold start wait time and improving efficiency.
H01M 8/04302 - Procédés de commande des éléments à combustible ou des systèmes d’éléments à combustible appliqués pendant des périodes spécifiques appliqués pendant le démarrage
A centrifugal fan assembly and a centrifugal fan employing the same. The centrifugal fan assembly comprises an outer rotor motor (1), a fan wheel (2), a mounting support, a bearing seat (4), and an air guiding ring. The mounting support comprises a first mounting support (31) and a second mounting support (32). The air guiding ring comprises a first air guiding ring (81) and a second air guiding ring (82). One end of the first mounting support (31) is connected to the bearing seat (4), and the other end is connected to the first air guiding ring (81). A bearing (41) is provided in the bearing seat (4). A rotating shaft (11) extends from the front end of the outer rotor motor (1), and the bearing (41) supports the rotating shaft (11). One end of the second mounting support (32) is connected to a base (12) at a rear end of the outer rotor motor (1), and the other end is connected to the second air guiding ring (82). The outer rotor motor (1) is located in a cavity of the fan wheel (2), and the fan wheel (2) is mounted on the outer rotor motor (1). The first mounting support (31) and the first air guiding ring (81) are integral structures, or/and the second mounting support (32) and the second air guiding ring (82) are integral structures. The invention effectively ensures the coaxiality of the fan wheel and the air guiding ring, thereby improving performance of a fan and reducing noise of the fan. In addition, the invention reduces parts, is easy to mount, and effectively improves mounting precision.
Disclosed in the utility model is a fire prevention flame-retardant plastic package motor, comprising a rotary shaft, a rotor assembly, a plastic package stator assembly, a front bearing support frame, and a rear bearing support frame. The plastic package stator assembly comprises a stator core, a coil winding, end insulation, and an injection-molding housing. The stator core, the coil winding, and the end insulation are integrally formed by injection molding of the injection-molding housing. The rotary shaft is mounted on the rotor assembly. The fire prevention flame-retardant plastic package motor further comprises a front flameproof enclosure and a rear flameproof enclosure. The front flameproof enclosure is mounted on one end surface of the injection-molding housing, and the rear flameproof enclosure warps the other end surface and outer wide wall of the injection-molding housing. The fire prevention flame-retardant plastic package motor can effectively prevent the possibility of ignition of an external load after a fire caused by an anomaly during the operation of the motor, and achieves a good fire prevention flame-retardant effect, a connecting member is provided on the rear flameproof enclosure, and after the rear flameproof enclosure is sleeved on the injection-molding housing, the connecting member of the rear flameproof enclosure is clipped onto the top surface of the front flameproof enclosure, assembly is simple and convenient, and connection is reliable.
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
H02K 5/02 - Enveloppes ou enceintes caractérisées par le matériau les constituant
H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p.ex. de l'eau ou des doigts
H02K 5/16 - Moyens de support des paliers, p.ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
Disclosed is a brushless direct current plastic package motor, comprising a rotating shaft, a rotor assembly, a plastic package stator, a front bearing support, a rear bearing support, a driving circuit board and a metal conducting member, wherein the rear bearing support and the front bearing support are made of a conductive metal material, and two ends of the metal conducting member are connected to the front bearing support and the rear bearing support, respectively, such that the front bearing support and the rear bearing support are in communication with each other and conductive; and the metal conducting member is isolated from the driving circuit board and a stator iron core and is non-conducting, part of the metal conducting member is plastic-packaged in a plastic package body, and the rest of the metal conducting member is exposed out of the surface of the plastic package body. According to the brushless direct current plastic package motor, the metal conducting member can be reliably connected and is less prone to falling off, a simple installation procedure and a good appearance are achieved, and meanwhile the wall thickness of part of the plastic package body is small, thus reducing the material utilization amount and decreasing the costs.
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p.ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
H02K 11/00 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection
An anti-fire flame-retardant plastic-packaged motor, comprising a rotating shaft (1), a rotor assembly (2) and a plastic-packaged stator assembly (3). The plastic-packaged stator assembly (3) comprises a stator core (31), a coil winding (32), end insulation (33) and a plastic-packaged body (34), wherein the coil winding (32) is nested after the end insulation (33) is mounted on a surface of the stator core (31), and the plastic-packaged body (34) plastically packages the stator core (31), the coil winding (32) and the end insulation (33) into one body. The rotating shaft (1) is mounted on the rotor assembly (2), the middle of the plastic-packaged stator assembly (3) is provided with a central hole (35), and the rotor assembly (2) is mounted in the central hole (35). Further comprised are an upper end cover (5) and a lower end cover (6), wherein the upper end cover (5) and the lower end cover (6) are mounted at two ends of the plastic-packaged stator assembly (3) respectively and wrap two end surfaces (341) and a side surface (342) of the plastic-packaged body (34); a first bearing pedestal (51) and a second bearing pedestal (61) are disposed on the upper end cover (5) and the lower end cover (6) respectively; a bearing (7) is mounted in the first bearing pedestal (51) and the second bearing pedestal (61); the rotating shaft (1) is supported and mounted on the bearing (7); and the upper end cover (5) and the lower end cover (6) are made of a fireproof material. The foregoing anti-fire flame-retardant plastic-packaged motor may effectively prevent a motor from igniting a load after catching on fire, and simultaneously prevents a load from igniting a motor after catching on fire.
The present invention relates to a conversion circuit board of a BLDC motor and an air condition control system applying the conversion circuit board and for use in a hotel. The conversion circuit board of the BLDC motor comprises a microprocessor module, a power supply module, a communication module, a first BLDC motor interface module, and a second BLDC motor interface module. The microprocessor module can communicate with an air condition control mainboard via the communication module to transmit data and instructions. The microprocessor module can be connected to two BLDC motors via the first BLDC motor interface module and the second BLDC motor interface module. This is of a high degree of integration, functionally improved, and inexpensive.
H02P 6/04 - Dispositions pour commander ou réguler la vitesse ou le couple de plusieurs moteurs
H02P 6/08 - Dispositions pour commander la vitesse ou le couple d'un seul moteur
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
H02M 7/10 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge sans électrode de commande ou des dispositifs à semi-conducteurs sans éléctrode de commande agencés pour la marche en série, p.ex. pour la multiplication de tension
An axial flow fan and an automobile using same. The axial flow fan comprises a flow guide ring (1), a motor (2) mounted in the flow guide ring (1), and an impeller (3) fitted over the motor (2). A cavity (11) for accommodating the motor (2) and the impeller (3) is provided in the flow guide ring (1); one end face of the flow guide ring (1) is covered by a mesh cover (4); a fixing platform (41) is provided at the center of the mesh cover (4); and the motor (2) is mounted in the cavity (11) by means of the fixing platform (41).
Disclosed is a single-phase asynchronous motor, comprising a first working loop. The first working loop comprises a first main winding, a first auxiliary winding, and a first capacitor. The first auxiliary winding and the first capacitor are connected in series, and then are connected in parallel to both ends of the first main winding. The single-phase asynchronous motor further comprises a second working loop. The second working loop comprises a second main winding, a second auxiliary winding, and a second capacitor. The second auxiliary winding and the second capacitor are connected in series, and then are connected in parallel to both ends of the second main winding. A switch is provided between the first working loop and an input power supply to control on and off. A switch is provided between the second working loop and the input power supply to control on and off. The first working loop and the second working loop are alternatively turned on by controlling the corresponding switch so as to work. By configuring the first working loop and the second working loop, motor starting and operation are respectively achieved by the two windings, thereby greatly improving the operation efficiency and reducing costs.
H02K 17/08 - Moteurs avec phase auxiliaire obtenue par des enroulements auxiliaires alimentés depuis l'extérieur, p.ex. moteurs à condensateur
H02K 17/06 - Moteurs asynchrones à induction pour courant monophasé avec des enroulements permettant le changement du nombre de pôles
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
H02P 1/44 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques pour faire démarrer des machines dynamo- électriques ou des convertisseurs dynamo-électriques pour faire démarrer individuellement un moteur d'induction monophasé par phase auxiliaire avec un condensateur
94.
MOTOR PROGRAMMING SYSTEM, OPERATING METHOD APPLYING SAME FOR MOTOR INSTALLATION AND REPAIR
A motor programming system and an operating method applying same for motor installation and repair. The motor programming system comprises: a mobile phone (4) having a Bluetooth communication functional module; a Bluetooth communication device (3) physically connected to a motor controller (2), the Bluetooth communication device (3) being wirelessly connected to the mobile phone (4) for establishing Bluetooth mode communication; a motor information database, stored in the mobile phone, comprising several records, each record comprising field information of a motor type, a user type, and a motor operating parameter; a motor programming app software module installed on the mobile phone (4) that automatically searches in the built-in motor information database on the basis of inputted search information to find a record matching the search information, calls relevant data matching the record, and then programs same for writing into the motor controller (2) via the Bluetooth communication device (3).
G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
H02K 15/00 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques
A wind rotor and a blower using the wind rotor. The wind rotor comprises a top panel (1), a bottom panel (2) and several wind blades (3) mounted between the top panel (1) and the bottom panel (2), an air inlet (21) being provided at the center of the bottom panel (2), an air duct (22) being formed between two adjacent wind blades (3), a connecting seat (11) connected to a motor shaft being provided at the center of the top panel (1), several auxiliary wind blades (12) being provided by protruding from the edge of the top panel (1), the diameter D1 of the wind blades (3) being greater than the diameter D2 of the bottom panel (2). This invention increases the air outlet area of the wind rotor, and can reduce vibration of the whole machine, thereby reducing noise of the whole machine.
Disclosed is a BLDC electric motor, comprising an electric motor body and a controller, wherein a front end of the electric motor body extends out of a rotary shaft, and a tail end of the electric motor body is connected to the controller; the electric motor body comprises a housing, a front end cover, a rear end cover, a stator assembly, a rotor assembly and the rotary shaft; the front end cover and the rear end cover are respectively mounted at two ends of the housing, and the stator assembly and the rotor assembly are mounted in a cavity of the housing; a magnetic ring is mounted on the rotor assembly; the rear end cover thereof comprises a base plate, a bearing seat protruding in a direction from the center of the base plate to the controller, and an annular boss raised at the periphery of the base plate; an annular groove is formed between the annular boss and the bearing seat; a through hole is provided in the groove; a Hall fixing frame is mounted in the groove; a Hall circuit board is mounted on the Hall fixing frame; and a Hall element on the Hall circuit board extends into the electric motor body through the through hole and is located next to the magnetic ring. The Hall circuit board is convenient to install, and the rear cover and the Hall fixing frame are less prone to deformation, avoiding the angle deviation of the Hall element.
H02K 29/08 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p.ex. tubes à décharge ou dispositifs à semi-conducteurs avec des dispositifs détecteurs de la position utilisant des dispositifs à effet magnétique, p.ex. dispositifs à effet Hall ou magnéto-résistances
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p.ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires
97.
CONTROL METHOD FOR CORRECTING PMSM COMPENSATION ITEM
A control method for correcting a PMSM compensation item. Data of a motor for which an error, caused by a certain parameter, occurs during control is measured in an offline manner, a lookup table of a current command and a compensation item based on the certain parameter is obtained, and the lookup table is stored in the memory of a motor controller; the motor is started so that the motor normally operates, the compensation item is re-corrected by using the lookup table of the compensation item based on the certain parameter in the online operating state of the motor to adapt to the current working condition of the motor so as to implement accurate control. The control precision of a motor is improved.
A cross-flow wind wheel and a motor mounting structure, comprising a motor (1), a cross-flow wind wheel (2) and a motor mounting plate (3), wherein the cross-flow wind wheel (2) comprises multiple wind blades (21) and multiple wind blade connecting rings (23); the wind blades (21) surround a long cavity (22); a wind wheel connecting part (4) is provided in the cross-flow wind wheel (2); the wind wheel connecting part (4) is positioned in the long cavity (22); the motor mounting plate (3) is positioned on the outer side of one end of the cross-flow wind wheel (2); the motor (1) is mounted on the motor mounting plate (3); and at least one part of the motor (1) extends into the long cavity (22) and is connected to the wind wheel connecting part (4). With the described mounting structure, the total length is shortened after the cross-flow wind wheel is connected to the motor, which aids in the expansion of air conditioner minitiarization.
Disclosed by the present invention are a motor end cover, and a motor and fan applying the same. The motor end cover comprises an end cover body, the end cover body being internally provided with a bearing chamber used for installing a bearing, which is characterized in that: a coil is embedded in an inner wall of the bearing chamber, and the thickness H1 of the side wall of the bearing chamber and the thickness H2 of the coil satisfy H2≥1/3H1. The coil changes the center of gravity of the motor end cover, increases the weight of the motor end cover, effectively reduces the creep of the bearing chamber, enhances the friction-resistance coefficient of the inner wall of the bearing chamber, and may protect the bearing well; the improved motor end cover changes the center of gravity, the mode, and the inherent frequency of the motor such that the inherent frequency of the motor deviates from the inherent frequency of a load, which reduces the vibration of the motor.
An exhaust fan, comprising a box body (1) and a volute fan. The volute fan comprises a volute casing (2), a fan wheel (3) and a motor (4). A first ventilation passage is formed by a gap (110) of a cover plate (11) of the box body (1), a first air inlet (25) of a front end plate (21) of the volute casing (2), a hollow cavity (24) of the volute casing (2), an air outlet (26) of a side panel (23) of the volute casing (2), and an opening (120) of a side plate (12) of the box body (1). A second ventilation passage is formed by the gap (110), an air duct (5) between the side plate (12) and the side panel (23), a flow channel (6) between a rear end plate (22) of the volute casing (2) and a bottom plate (13) of the box body (1), a second air inlet (28) of the rear end plate (22), the hollow cavity (24), the air outlet (26) and the opening (120). In the present exhaust fan, a ventilation passage is added and the air inlet area is enlarged, thus increasing efficiency and improving noise.
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