The present disclosure provides a harmonic suppression apparatus, method, control unit, power supply apparatus, electric appliance equipment, and storage medium, wherein the harmonic suppression apparatus includes a tuning circuit module, which is connected with a first live wire and a second live wire of a three-phase power supply and is configured to perform resonance regulation processing; a PI-type resonant filtering circuit module, which is respectively connected with the tuning circuit module and a third live wire of the three-phase power supply and is configured to perform harmonic filtering processing on the first-phase current and the second-phase current processed by the tuning circuit module and a third-phase current; and a rectification circuit module, which is connected with the PI-type resonant filtering circuit module and is configured to perform rectification progressing and a power a load.
H02M 1/12 - Arrangements for reducing harmonics from ac input or output
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Provided in the present application is a heat exchange apparatus. The heat exchange apparatus comprises: a shell, the shell being provided with a water collection structure, and the water collection structure being used for collecting condensation water; an evaporator, the evaporator being provided in the shell; and a liquid storage tank, at least part of the water collection structure communicating with an inlet of the liquid storage tank, and at least one outlet of the liquid storage tank supplying condensation water to the evaporator, so as to achieve a humidifying function. The heat exchange apparatus provided in the present application can solve the problem of incomplete condensation water treatment of heat exchange apparatuses in the prior art.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
Provided is a heat exchange device. The heat exchange device comprises a housing (10), the housing (10) comprising a water collection structure (101), and the water collection structure (101) being used for collecting condensed water; an evaporator (50), the evaporator (50) being provided in the housing (10); a first liquid storage tank (20), at least part of the water collection structure (101) being communicated with an inlet of the first liquid storage tank (20); a second liquid storage tank (30), the first liquid storage tank (20) further comprising a second liquid discharge port (222) communicated with the second liquid storage tank (30), and the second liquid storage tank (30) being detachably provided on the housing (10). The heat exchange device provided can solve the problem in the prior art of incomplete treatment of condensate water in the heat exchange device.
F24F 1/022 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
F24F 1/0323 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the mounting or arrangement of the heat exchangers
F24F 1/037 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with humidification means
F24F 1/039 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing using water to enhance cooling, e.g. spraying onto condensers
F24F 13/22 - Means for preventing condensation or evacuating condensate
4.
INFORMATION SECURITY EVALUATION METHOD AND APPARATUS, AND SECURITY EVALUATION PLATFORM AND STORAGE MEDIUM
An information security evaluation method and apparatus, and a security evaluation platform and a storage medium. The method comprises: acquiring first social content information which is published by a target object on a social platform account (101); determining private information of the target object on the basis of the first social content information (102); and generating an information security evaluation result of the target object according to the private information (103). The method can realize automatic evaluation for the security of private information of a target object by means of at least one of first personal profile information and first tweet information that are included in first social content information published by the target object, and reminds the target object to be cautious about publishing the private information of the target object on a social platform, thereby effectively preventing the personal security issue caused by leakage of the private information.
An oil return control method and apparatus for variable refrigerant flow (VRF), and a VRF system. The oil return control method for VRF comprises: when a VRF system needs to enter an oil return operation, dividing, according to an operating state of each indoor unit, indoor units into a first indoor unit and a second indoor unit, wherein the oil return operation comprises a plurality of oil return stages; and using different control strategies at each oil return stage, so as to control the frequency of a compressor of the VRF system and control the opening degree of an indoor unit valve of at least one of the first indoor unit and the second indoor unit.
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
The present disclosure provides a temperature control method and apparatus for a heating device, a heating device, and a storage medium. The method comprises: according to an environment temperature obtained in a heating process of a heating device, determining an environment state of a space where the heating device is currently located; determining whether the environment temperature meets a preset heating stop condition; and when the environment temperature meets the preset heating stop condition, determining a heating restart condition of the heating device in the current space according to the environment state, and when the heating restart condition is met, controlling the heating device to be restarted for heating. According to the present disclosure, the heating device can perform temperature control in different environment states by using corresponding different heating restart conditions, so that the ability of the heating device to control the environment temperature is improved to achieve precise temperature control, and the technical problem that an existing heating device cannot perform precise temperature control on the basis of the environment temperature is solved.
Disclosed are a magnetic suspension active three-degree-of-freedom bearing, a motor, and a compressor. The magnetic suspension active three-degree-of-freedom bearing comprises an axial magnetic bearing (100), a radial magnetic bearing (200), and a bearing rotor (7). The axial magnetic bearing comprises a first axial stator (300) and a second axial stator (400), and the radial magnetic bearing comprises a radial stator (500), which is located on the outer circumference of the bearing rotor (7) and can apply a radial electromagnetic force to the bearing rotor. The first axial stator and the second axial stator can apply an axial electromagnetic force to the bearing rotor, at least part of the structure of the first and second axial stators is located on a radial outer side of a radial winding (5), and a part of the structure of the first and second axial stators is connected to a radial outer end of a radial core (6), so that a bias flux of the radial magnetic bearing is provided by the axial magnetic bearing. An original structure such as a bias stator is omitted from the described bearing, the structure is more compact and simpler, the processing difficulty is reduced, the size is reduced, and assembly is easy.
A magnetic levitation active three-degree-of-freedom bearing, a motor, and a compressor. The magnetic levitation active three-degree-of-freedom bearing comprises: an axial magnetic bearing (100), a radial magnetic bearing (200) and a bearing rotor (7), the axial magnetic bearing (100) comprising a first axial stator (300) and a second axial stator (400), and the radial magnetic bearing (200) comprising a radial stator (500). The radial stator (500) is located on the periphery of the bearing rotor (7) and can apply a radial electromagnetic force to the bearing rotor (7). The first axial stator (300) and the second axial stator (400) can apply an axial electromagnetic force to the bearing rotor (7); at least part of the structure of the first axial stator (300) is located on the radial outer side of the bearing rotor (7) and located on the radial inner side of a radial winding (5), and at least part of the structure of the second axial stator (400) is located on the radial outer side of the bearing rotor (7) and located on the radial inner side of the radial winding (5), so that a bias magnetic flux of the radial magnetic bearing (200) is provided by the axial magnetic bearing (100). The first axial stator (300) and the second axial stator (400) provide a bias magnetic circuit for the radial stator, thereby omitting original structures such as a bias stator, thus achieving a more compact and simpler structure, lowering the process difficulty, reducing the size, and making assembly easy.
A tank-type heat exchanger and an air conditioning system. The tank-type heat exchanger comprises: an outer cylinder (1); an inner cylinder (2), the outer cylinder (1) being arranged parallel to the axis of the inner cylinder (2), and an annular space being formed between the outer cylinder (1) and the inner cylinder (2); first heat exchange tubes (31); a uniform liquid distribution disc (4) located on a side of the first heat exchange pipes (31) close to an axial first end of the tank-type heat exchanger, wherein a radial outer end of the uniform liquid distribution disc (4) forms a gas channel with the cylinder wall of the outer cylinder (1), and/or a radial inner end of the uniform liquid distribution disc (4) forms a gas channel (G) with the cylinder wall of the inner cylinder (2); and a shielding part (5), which is axially spaced apart from the uniform liquid distribution disc (4); the shielding part (5) comprises a shielding main body, the shielding main body being located on the side of the uniform liquid distribution disc (4) facing the axial first end of the tank-type heat exchanger, and running in the radial direction of the tank-type heat exchanger; the shielding main body completely covers the corresponding gas channel (G); one of the radial inner end and radial outer end of the shielding main body is a connecting end, and the other is a free end; the connecting end is in sealed connection with one of the cylinder wall of the inner cylinder (2) or the cylinder wall of the outer cylinder (1); and the free end is spaced apart from the other of the cylinder wall of the inner cylinder (2) or the cylinder wall of the outer cylinder (1).
A compressor control method and apparatus, and a unit. The method is applied to a unit comprising at least two compressors connected in parallel. The method comprises: when a unit requires the loading or unloading of a compressor, acquiring a cumulative number of rotation turns of each compressor, wherein the cumulative number of rotation turns represents the degree of wear of the compressor; and performing loading/unloading control over the compressor according to the cumulative number of rotation turns.
A rotor assembly, a compressor and an air conditioner. The rotor assembly includes a first rotor, including a first working portion and a second working portion coaxially arranged, wherein the first working portion and the second working portion are rotatable about a first axis; the first working portion includes a plurality of first helical blades, with a first blade groove being formed between adjacent two of the plurality of first helical blades; at least one first air pressure groove is provided on a first end face of the first working portion away from the second working portion; and the first air pressure groove is configured to form a force in a predetermined direction along the first axis when rotating. The rotor assembly can reduce costs of the compressor, simplify structures of moving parts of the compressor, and improve performance and reliability of the compressor.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 18/08 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
12.
PUMP BODY ASSEMBLY, COMPRESSOR ASSEMBLY, AND AIR CONDITIONING SYSTEM
The present application provides a pump body assembly, a compressor assembly, and an air conditioning system. The pump body assembly comprises: a first air cylinder (203) having a first air suction hole (301); a second air cylinder (205), which is a variable volume cylinder and is provided with a second air suction hole (302); and an adjustment structure arranged corresponding to the second air suction hole (302) and configured to be able to seal the second air suction hole (302) when the second air cylinder (205) is unloaded, and to open the second air suction hole (302) when the second air cylinder (205) is operating.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 28/22 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
13.
AIR CONDITIONER, POWER LIMITING CONTROL METHOD THEREFOR, AND STORAGE MEDIUM
Disclosed in the present disclosure are an air conditioner, a power limiting control method therefor, and a storage medium. The power limiting control method for the air conditioner comprises: selecting a corresponding control strategy according to the relationship between power limiting requirements and the actual use condition of the air conditioner; when the control strategy is a capability reduction control strategy, selecting a corresponding control sub-strategy according to an outdoor environment temperature so as to realize the balance between the power limiting requirements and the comfort; and controlling operation parameters of the air conditioner according to the control sub-strategy.
Provided in the present disclosure are a heat pump unit control method and apparatus, and a heat pump unit. The heat pump unit control method comprises: after a compressor is started, determining whether the condensation temperature and exhaust pressure of a unit meet a preset regulation and control condition; if the condensation temperature and exhaust pressure of the unit meet the preset regulation and control condition, reducing the operation frequency and frequency increasing speed of the compressor until the preset regulation and control condition is no longer met; if the condensation temperature and exhaust pressure of the unit do not meet the preset regulation and control condition, further detecting whether operation parameters of the compressor are abnormal; if the operation parameters of the compressor are abnormal, determining, according to the operation frequency of the compressor, whether the abnormal situation is an accidental abnormality or a frequent abnormality; if the abnormal situation is an accidental abnormality, executing a corresponding regulation and control strategy; and if the abnormal situation is a frequent abnormality, further determining an abnormality level, and executing, according to the abnormality level, a corresponding regulation and control strategy. By means of performing fine processing on a control strategy for a heat pump unit, when the unit is abnormal, the operation state can be adjusted according to the situation, such that the adaptability of the unit is improved while ensuring the safety and reliability of the unit; and frequent shutdown of the unit is avoided, thereby improving the usage experience of a user.
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
Provided are a pressure relief method and device for a cooking appliance, a cooking appliance, and a storage medium. The method comprises: when a cooking appliance enables a rapid pressure relief function, acquiring inner pot pressure of the cooking appliance (S11); determining whether the inner pot pressure meets a preset execution condition for entering a venting stage (S12); if the inner pot pressure meets the execution condition for entering the venting stage, controlling the cooking appliance to stop executing the rapid pressure relief function, and timing a stop duration of the rapid pressure relief function (S13); and when the stop duration reaches a preset first duration threshold, controlling the cooking appliance to vent according to a venting duty ratio corresponding to the inner pot pressure (S14). By performing venting after controlling the rapid pressure relief function to be stopped for a preset duration before each venting, a pressure relief duration of the cooking appliance having the rapid pressure relief function can be further shortened while overflowing is avoided, and turnover and boiling of food in a pot at a pressure relief stage is promoted, thereby improving the cooking effect.
The present disclosure relates to a control method and system for a water heater unit, and a computer-readable storage medium. The water heater unit comprises a compressor, a water-side heat exchanger, an evaporative heat exchanger and an expansion valve, wherein the expansion valve is located between the water-side heat exchanger and the evaporative heat exchanger. The control method for a water heater unit comprises: acquiring a refrigerant saturation temperature corresponding to the pressure at a refrigerant discharge pipe of a water-side heat exchanger, recording the refrigerant saturation temperature as a first temperature, acquiring a discharge-water temperature of the water-side heat exchanger, and comparing the first temperature with the discharge-water temperature, so as to obtain a first comparison result; acquiring the temperature at the refrigerant discharge pipe of the water-side heat exchanger, recording the temperature as a second temperature, acquiring an input-water temperature of the water-side heat exchanger, and comparing the second temperature with the input-water temperature, so as to obtain a second comparison result; and adjusting the opening degree of an expansion valve according to the first comparison result and the second comparison result. The opening degree of an expansion valve is adjusted by means of determining a heat exchange state of a water-side heat exchanger, such that sufficient condensation of the water-side heat exchanger can be facilitated and high adjustment accuracy is achieved.
A device deployment method and apparatus, a storage medium, and an electronic device, relating to the technical field of smart home. The method is used for a self-propelled robot, and comprises: acquiring a network to be detected which is connected to a self-propelled robot; when the self-propelled robot scans a target area, acquiring the network signal condition of said network at each position of the target area; and according to the network signal condition, recommending a device to be deployed at a target position. The network signal condition of said network at each position of the target area is acquired so as to detect the state of a network signal at each position, and the placement position of a home device is recommended to a user according to the network signal condition, so that a network environment of the smart home device is improved.
Provided in the present disclosure are a fresh air unit, an air-conditioning system and a control method therefor. The fresh air unit comprises a housing, an indirect evaporative cooler, a water receiving pan and surface coolers, wherein each surface cooler is obliquely arranged in the housing, a lower end of the surface cooler is arranged on the water receiving pan, and an upper end of the surface cooler is arranged on the housing in a sealed manner. According to the fresh air unit, the air-conditioning system and the control method therefor, which are provided in the present disclosure, the indirect evaporative cooler is used for fresh air and return air to carry out one time of heat transfer, and the fresh air is cooled by means of the indirect evaporative cooler and does not come into contact with condensate water, such that the requirements of dehumidification and cooling at the surface coolers are relatively small, thereby reducing the requirements of heat transfer and dehumidification for the surface coolers. In addition, the surface coolers are obliquely arranged, such that the heat transfer area of the surface coolers is increased, thereby improving a heat transfer effect of the surface coolers, thus improving the heat transfer efficiency of the fresh air unit.
F24F 7/08 - Ventilation with ducting systems with forced air circulation, e.g. by fan with separate ducts for supplied and exhausted air
F24F 3/06 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening
F24F 13/30 - Arrangement or mounting of heat-exchangers
F24F 13/22 - Means for preventing condensation or evacuating condensate
F28D 5/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
F24F 11/46 - Improving electric energy efficiency or saving
F24F 11/65 - Electronic processing for selecting an operating mode
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
The present application provides a phase synchronization working circuit and method. The phase synchronization working circuit comprises: a direct-current power supply, an inverter, an electronic switch module group, and a controller; a direct-current output end of the direct-current power supply is connected to a direct-current input end of the inverter; a first alternating-current output end of the inverter is connected to an input end of the electronic switch module group; the electronic switch module group comprises at least two output ends, and each output end of the electronic switch module group and a second alternating-current output end of the inverter form a load connecting end group; and an output end of the controller is connected to a control end of the electronic switch module group, and the controller is used for controlling on/off of the electronic switch module group so as to supply power or stop supplying power to each load connecting end group by means of the electronic switch module group. The present application avoids a poor working effect caused by loads working at different phases.
H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
20.
ELECTRICAL BOX AND CEILING CASSETTE AIR CONDITIONER
Provided in the present disclosure are an electrical box and a ceiling cassette air conditioner. The electrical box comprises a shell. The shell comprises: a shell plate, which has an opening and of which a partial structure defines a limiting structure; and a mounting plate, which is movably arranged in the shell and of which one end is rotatably arranged on the shell plate, and has a sub-supporting state of being clamped between the shell plate and the limiting structure. By means of the electrical box and the ceiling cassette air conditioner provided in the present disclosure, an electronic component is arranged on the mounting plate when the electronic component is installed, and then the mounting plate is clamped by using the limiting structure and a bottom plate of the shell when the mounting plate is not fixed to the shell, thereby achieving self-supporting of the mounting plate. This effectively solves the problem of an operator needing to hold the electronic component and relevant injection-molded parts to achieve one-handed operations in the prior art. In addition, the workload of the operator is effectively reduced, and the duration of high-place operations is shortened. Therefore, the complexity in disassembly and assembly is reduced, and the disassembly and assembly efficiency is improved.
H05K 3/02 - Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
Disclosed are a picture saving method, an electronic device and a storage medium. The method includes the following steps: in an acquisition step, in response to a picture saving instruction of a user, acquiring pictures to be saved to a preset icon; in a first display step, displaying the preset icon on a screen; in a second display step, in response to a first instruction of the user operating the preset icon, triggering display of an album window; and in a saving step, in response to a second instruction of the user operating the preset icon, saving at least one of the pictures to be saved to a designated album displayed in the album window.
G06F 3/04817 - Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
22.
CONTROLLER AND CONTROL SYSTEM FOR FREQUENCY CONVERTER, AND ELECTRICAL DEVICE
NATIONAL ENERGY INTERNET INNOVATION CENTER (GUANGDONG) CO., LTD (China)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI (China)
Inventor
Huang, Meng
Yang, Yongyue
Jiang, Yingyi
Abstract
Disclosed in the present disclosure are a controller and control system for a frequency converter, and an electrical device. The controller comprises: an amplification circuit, which is used for performing first-stage amplification on an input signal; a selection circuit, which is connected to the amplification circuit, and is used for performing second-stage amplification on an output signal of the amplification circuit according to a selected target resistor among a plurality of resistors, wherein each of the plurality of resistors is adapted to one of a variety of powers of a frequency converter; and a control circuit, which is connected to the selection circuit, and is used for selecting, from among the plurality of resistors, the target resistor, which is adapted to a target power.
A cooking control method of an electric cooker, and an electric cooker. The method comprises: before an electric cooker enters a boiling stage, adjusting the heating mode of a first heating assembly (2), a second heating assembly (3) and a third heating assembly (4), such that the upper-layer temperature of a food material in a cooker body (1) is higher than the lower-layer temperature (S1); and when the electric cooker is in the boiling stage, adjusting the heating mode of the first heating assembly (2), the second heating assembly (3) and the third heating assembly (4), such that the food material in the cooker body (1) is changed from the upper-layer temperature being higher than the lower-layer temperature to the lower-layer temperature being not lower than the upper-layer temperature (S2). After the electric cooker enters the boiling stage, the heating temperature of a bottom part and a side corner area are gradually increased, so that rolling and boiling of rice grains in a pot are promoted, the rolling state of the rice grains is optimized, and the gelatinization degree and uniformity of rice are improved.
A compressor (200), comprising: a first rotor (20) being rotatable around a first axis (11), the first rotor (20) comprising a first portion (22) and a second portion (24); and a first shaft (10) carrying the first portion (22) and the second portion (24), the first shaft (10) having a first end (12) and a second end (14) that are oppositely arranged, wherein the first rotor (20) is configured to be applied with a preset acting force in a direction from the first end (12) toward the second end (14) or from the second end (14) toward the first end (12) during rotation. The size of the compressor (200) can be reduced with the displacement of the compressor (200) remaining substantially unchanged.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
25.
AIR CONDITIONER AND CONTROL METHOD THEREFOR, AND STORAGE MEDIUM
Provided in the present disclosure are an air conditioner and a control method therefor, and a storage medium. The control method for an air conditioner comprises: collecting a time series of operation data of an air conditioner; recognizing an indoor temperature response time and a terminal temperature response time according to the time series of the operation data, and using the indoor temperature response time as a time interval for adjustment nodes of a first time scale, and the terminal temperature response time as a time interval for adjustment nodes of a second time scale; at each adjustment node of the first time scale, controlling operation parameters of the air conditioner by using a first control strategy; and at each adjustment node of the second time scale, controlling the operation parameters of the air conditioner by using a second control strategy.
A cam and a harmonic reducer. The cam comprises a cam body (1); the outer contour line of the cam body (1) comprises a plurality of meshing area contour curves and a plurality of non-meshing area contour curves; the meshing area contour curves and the non-meshing area contour curves are alternately connected to jointly form the outer contour line of the cam body; the meshing area contour curves and the non-meshing area contour curves are tangent to each other at intersections; each meshing area contour curve comprises a first curve (10) and a second curve (20); the first curve (10) and the second curve (20) are connected and are tangent at a connection position; a first segment (101) of the first curve protrudes more outwards than a first segment (201) of the second curve, and a second segment (202) of the second curve protrudes more outwards than a second segment (102) of the first curve.
The present disclosure relates to an air conditioner pipeline and an air conditioner, thereby alleviating the problem of complicated installation of the air conditioner pipeline. The air conditioner pipeline includes a pipe body. A flow channel for a refrigerant to flow is formed by an inner side of a pipe wall of the pipe body. The pipe wall of the pipe body is provided with at least two conductive parts and insulating parts, where the conductive parts are configured to transmit power to the air conditioner, and the insulating parts are configured to realize insulation between the conductive parts. The air conditioner pipeline provided by the present disclosure can transmit refrigerants and also can transmit power, thereby saving the connection cost of an indoor unit and an outdoor unit of the air conditioner, reducing the installation complexity of the air conditioner, achieving high safety and facilitating implementation.
The present application provides a variable-capacity compressor and an air conditioning system. The variable-capacity compressor comprises: a first cylinder, a first sliding sheet and a first partition plate, wherein the first cylinder is provided with a sliding sheet groove, at least part of the first sliding sheet is provided in the sliding sheet groove, the first cylinder is further provided with a sliding sheet tail cavity, the sliding sheet tail cavity is communicated with the sliding sheet groove, the first partition plate is provided with an expansion cavity, and the expansion cavity can be communicated with the sliding sheet tail cavity so as to introduce a gas in the sliding sheet tail cavity into the expansion cavity.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
29.
ENERGY ROUTER, CONTROL METHOD, CONTROL APPARATUS AND POWER SYSTEM
NATIONAL ENERGY INTERNET INNOVATION CENTER (GUANGDONG) CO., LTD (China)
Inventor
Sun, Yuxin
Huang, Meng
Huang, Songru
Cui, Yu
Liu, Yongjie
Guo, Hao
Abstract
Disclosed in the present application are an energy router, a control method, a control apparatus and a power system. The energy router comprises: a first terminal, which is used for connecting to a positive electrode of an energy storage battery; a second terminal, a third terminal and a fourth terminal, which are used for respectively connecting to three-phase input ends of an alternating-current power grid, or respectively connecting to positive electrodes of three photovoltaic power generation modules; a fifth terminal, which is used for connecting to one of a negative electrode of the energy storage battery, a neutral wire of the alternating-current power grid and a negative electrode of a photovoltaic power generation module; and a switching module, a first end of which is connected to a rectification module, and a second end of which is respectively connected to the first terminal, the second terminal, the third terminal and the fourth terminal and is used for controlling, according to a control instruction, whether to switch on the first terminal, the second terminal, the third terminal and the fourth terminal. The present application can realize the integration of a photovoltaic DC/DC conversion function, an energy storage DC/DC conversion function and a power grid conversion function by means of the same hardware, thereby reducing the hardware cost.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 3/06 - Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
30.
TRAP ESCAPE METHOD AND APPARATUS FOR ROBOT, AND PROCESSOR AND ROBOT
A trap escape method and apparatus for a robot, and a processor and a robot. The method comprises: acquiring a historical running trajectory of a robot; according to the historical running trajectory of the robot, obtaining a traveling-in position and a traveling-in angle at which the robot enters a narrow area from a preset narrow passage; according to the traveling-in position and the traveling-in angle, determining a traveling-out position and a traveling-out angle at which the robot travels out of the narrow area from the preset narrow passage; and on the basis of the traveling-out position and the traveling-out angle, controlling the robot to travel out of the narrow area. By means of the solution, a robot smoothly travels out of a narrow area.
A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers
31.
HEAT EXCHANGE DEVICE, REFRIGERATION CIRCUIT AND AIR CONDITIONING DEVICE
A heat exchange device, a refrigeration circuit and an air conditioning device. The heat exchange device comprises a can-shaped falling film heat exchanger (1) and an oil return device (2). The can-shaped falling film heat exchanger (1) comprises a housing (11), an inner cylinder (12) and a heat exchange coil (13). A first end in the axial direction of the housing (11) is provided with a liquid inlet (1A) and a gas inlet and outlet port (1C). The heat exchange coil (13) comprises a falling film area heat exchange section and a flooded area heat exchange section. The oil return device (2) comprises a gas guide pipe (21), an oil return part (22) and a filling part (23). The air guide pipe (21) is communicated with the gas inlet and outlet port (1C) of the housing (11) and comprises a first gas guide pipe inlet and outlet port (21A) located in a gas phase area of the inner cylinder (12). The oil return part (22) comprises one or more oil return ports which are communicated with a hollow part of the gas guide pipe (21) between the first gas guide pipe inlet and outlet (21A) and the gas inlet and outlet port (1C). The filling part (23) is arranged in the space of a second end in the axial direction of the housing (11), and in the axial direction of the housing (11), the oil return port and the filling part (23) is arranged between an end of the flooded area heat exchange section close to the falling film heat exchange section and the inner wall surface of a second end of the housing (11).
F25B 43/02 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
The present disclosure provides an air conditioner, comprising rotatable fans, each fan comprising a rotatable volute and a motor disposed inside the volute, and each motor being electrically connected to a power supply component by means of a motor wire. The motor wire comprises: a first wire segment, the first wire segment being directly connected to the motor, and the first wire segment being fixedly disposed on the volute and moving synchronously with the volute; and a second wire segment, the second wire segment being electrically connected to the power supply component, the first wire segment being electrically connected to the second wire segment by means of a rotating node, the rotating node being located outside the volute, and the second wire segment having a reserved length for the volute to rotate to drive the wire body to move. The air conditioner of the present disclosure effectively solves the problem of wire loss caused by twisting of motor wires of rotatable fans in air conditioners.
A drawing method for a load range graph of a robot. The drawing method comprises: acquiring a plurality of working condition parameter groups, wherein the working condition parameter groups comprise parameters of joints and parameters of a load; performing calculation according to each working condition parameter group, so as to obtain the maximum force arm of each corresponding joint, wherein the maximum force arm is the maximum force arm from the centroid of the load to a rotating shaft of the joint; determining relational expressions between first distances and a second distance according to a plurality of maximum force arms, wherein the first distances are the maximum force arms between the centroid of the load and the center of an end face of an output flange in a plurality of first directions, the second distance is the distance between the centroid of the load and the center of the end face of the output flange in a second direction, the second direction is the direction of a rotating shaft of the output flange, and each first direction is a direction perpendicular to the second direction; and drawing a relationship curve for the first distances and the second distance according to the relational expressions between the first distances and the second distance, and generating a load range graph. Further disclosed are a drawing apparatus for a load range graph of a robot, and a computer-readable storage medium, a processor and a robot. By means of the drawing method, a load range graph of a robot can be quickly drawn according to the adjustment of a working condition.
A rotor assembly, a compressor and an air conditioner are provided. The rotor assembly includes a first rotation shaft and a first rotor rotatably arranged on the first rotation shaft. The first rotor includes a plurality of first screw blades, and a first tooth slot is formed between two adjacent first screw blades; a suction end of the first rotor has at least one oil slinger slot, to allow a lubricant to enter the first tooth slot through the at least one oil slinger slot. It is ensured that the lubricant can fully lubricate and seal the first tooth slot, so that the compressor can run more smoothly, reduce wear of screw blades and improve the service life of the compressor.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
The present disclosure provides a compressor and an air conditioner. The compressor includes a housing; a first rotating shaft mounted in the housing; a connecting assembly sleeved on the first rotating shaft; and a first rotor assembly including a first rotor and a second rotor coaxially disposed on the connecting assembly. The connecting assembly carries the first rotor and the second rotor to rotate about the first rotating shaft together. The connecting assembly is configured to limit the relative positions of the first rotor and the second rotor, such that there exists a clearance between the first rotor and the second rotor. The present disclosure can maintain a clearance between the first rotor and the second rotor without increasing the number of components of the compressor.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The present disclosure relates to a blowing structure and a fan. The blowing structure includes a main body, a base, a control panel, a second drive member, and a first drive member. The main body is provided with a blowing channel, and the main body is rotatably connected to the base. The control panel is disposed on the main body. The second drive member is disposed in the blowing channel. The first drive member is connected to the main body, and the first drive member is configured to adjust an angle of rotation of the main body with respect to the base. The control panel is electrically connected to the second drive member and the first drive member.
The present disclosure provides a shell-and-tube heat exchanger and an air conditioning unit. The shell-and-tube heat exchanger comprises a shell and, disposed in the shell, a flash evaporation structure and a liquid separation structure; a refrigerant inlet is formed in the shell; the liquid separation structure is arranged on a side of the flash evaporation structure away from the refrigerant inlet, and refrigerant entering the refrigerant inlet sequentially flows through the flash evaporation structure and the liquid separation structure. In the shell-and-tube heat exchanger and the air conditioning unit provided in the present disclosure, arranging the flash evaporation structure in the shell-and-tube heat exchanger increases the level of product integration, reduces the use of a connecting pipeline, and thus reduces the safety hazards of pipeline vibration and refrigerant leakage. Moreover, refrigerant throttled by the flash evaporation structure then being subjected to gas-liquid separation can improve liquid separation uniformity, and simultaneously reduces the problem of refrigerant splashing as a result of the refrigerant impacting an outer wall surface of a heat exchange pipe, enhancing the film distribution effect, and improving the heat transfer coefficient.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 9/24 - Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
F28F 11/00 - Arrangements for sealing leaky tubes or conduits
F28F 19/01 - Preventing the formation of deposits or corrosion, e.g. by using filters by using means for separating solid materials from heat-exchange fluids, e.g. filters
F25B 43/00 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
The present application provides a rotor assembly and a self-starting permanent magnet synchronous reluctance motor. The rotor assembly includes a rotor core, wherein on a cross section of the rotor core, the rotor core is provided with slit slots, q-axis squirrel cage slots and permanent magnets, the q-axis squirrel cage slots are disposed at two ends of the slit slots, the permanent magnets are disposed in the slit slots, the permanent magnet located at the innermost layer in a d-axis direction is at least asymmetrically disposed relative to a d-axis, and an offset direction of the permanent magnet located at the innermost layer relative to the d axis is consistent with a rotation direction of the rotor assembly.
A pump body assembly, a compressor and a double-temperature air conditioning system. The pump body assembly comprises a high-pressure compression portion and a low-pressure compression portion, the high-pressure compression portion comprises a first air cylinder (11) and a first sliding vane (12) corresponding to the first air cylinder (11), and the low-pressure compression portion comprises a second air cylinder (21) and a second sliding vane (22) corresponding to the second air cylinder (21). The high-pressure compression portion is provided with a first air supplementation opening (13), and the low-pressure compression portion is provided with a second air supplementation opening (23). A first center included angle β based on the center of the first air cylinder (11) is formed between an air supplementation center line of the first air supplementation opening (13) and a symmetrical center line of the first sliding vane (12), a second center included angle α based on the center of the second air cylinder (21) is formed between an air supplementation center line of the second air supplementation opening (23) and a symmetrical center line of the second sliding vane (22), and α>β. In the pump body assembly, a dislocation is formed between an axial projection of the first air supplementation opening on the pump body assembly and an axial projection of the second air supplementation opening on the pump body assembly, thus improving the system efficiency.
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
40.
COOKING TEMPERATURE CURVE PROCESSING METHOD AND APPARATUS, AND COMPUTER DEVICE
A cooking temperature curve processing method and apparatus, a computer device, a storage medium, and a computer program product. The method comprises: acquiring an initial cooking temperature curve to be processed, the initial cooking temperature curve being a fitting relation curve of cooking time and temperature (S302); when a temperature point completion condition is met, splitting temperature points of the initial cooking temperature curve into a plurality of temperature point sets, each temperature point set comprising continuous initial temperature representative points and common temperature points between the continuous initial temperature representative points (S304); determining a value change feature of each initial temperature representative point (S306); determining a target temperature representative point of each temperature point set according to the value change feature of each initial temperature representative point in each temperature point set and the number of the common temperature points (S308); constructing a target cooking temperature curve on the basis of each target temperature representative point (S310); and sending the target cooking temperature curve to a display unit, and instructing the display unit to display the target cooking temperature curve in real time (S312).
The present disclosure provides a memory chip anti-miswrite control method and apparatus, and an electrical device. The method comprises: determining whether a main control chip has a write demand on a memory chip; if the main control chip has a write demand on the memory chip, recording the page number of the memory chip corresponding to the write demand; after delaying first preset time, determining whether the main control chip has a new write demand on the memory chip; and if the main control chip has a new write demand on the memory chip, after delaying the first preset time, performing a write operation on the memory chip according to the recorded page number, wherein the first preset time is greater than or equal to the time required for dropping from the minimum working voltage of the main control chip to the minimum working voltage of the memory chip after power failure.
A cooking temperature curve processing method and apparatus, a computer device, a storage medium, and a computer program product. The method is applied to a cooking device. The cooking device comprises a controller and a display. The method comprises: acquiring an initial cooking temperature curve to be processed, the initial cooking temperature curve being a fitting relation curve of cooking time and temperature; when a compression condition is satisfied, acquiring a compression ratio; splitting temperature points of the initial cooking temperature curve into a plurality of temperature point sets according to the compression ratio, each temperature point set comprising a plurality of continuous temperature points, and the number of temperature points of the temperature point set being determined according to the compression ratio; determining value change features of a plurality of temperature points in each temperature point set; determining representative points of each temperature point set according to the value change features of the plurality of temperature points in each temperature point set; generating a target cooking temperature curve according to the representative points of the temperature point sets; and sending the target cooking temperature curve to a display unit, and instructing the display unit to display in real time the target cooking temperature curve.
Disclosed in the present disclosure are an oil return control method and device, and an air conditioner. The method comprises: at a current compressor operation frequency, adjusting an oil amount regulating component on an oil return pipe to a first opening degree, and maintaining operating for a first duration at the first opening degree, so that the oil level in a compressor reaches a maximum safe oil level; lowering the oil amount regulating component to a second opening degree, so that the oil discharge amount of the compressor is equal to the oil return amount of the compressor; and determining an optimal opening degree according to the heat exchange capability of an air conditioner, and controlling the oil amount regulating component to continuously operate according to the optimal opening degree. According to the present disclosure, reliable oil return is ensured by means of the first opening degree and the first duration, and the reliability of the compressor is ensured; on the basis that the oil discharge amount of the compressor is balanced with the oil return amount of the compressor, the oil amount regulating component is optimally controlled for less oil return, so as to seek an optimal opening degree with better capability and higher energy efficiency, so that the capability and the energy efficiency under a reliable oil return condition are further improved, optimal capability and optimal energy efficiency can be achieved, and reliable operation of the compressor can be ensured.
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
44.
FREQUENCY CONVERTER COOLING DEVICE, COOLING METHOD AND AIR CONDITIONING APPARATUS
Disclosed in the present disclosure are a frequency converter cooling device, a cooling method and an air conditioning apparatus. The frequency converter cooling device comprises: an inlet pipeline; an outlet pipeline, which is provided with a first electric valve; a first branch and a second branch, which are connected in parallel between the inlet pipeline and the outlet pipeline, the first branch being configured to cool a frequency converter cabinet, and the second branch being configured to cool a frequency converter module; a bypass, which has one end in communication with a compressor outlet pipeline and the other end in communication with an outlet pipeline of the first electric valve on the outlet pipeline, a second electric valve and an ejector being provided on the bypass; and a third branch, which has one end in communication with the ejector and the other end in communication with an inlet pipeline of the first electric valve, a third electric valve being provided on the third branch.
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
F25B 41/42 - Arrangements for diverging or converging flows, e.g. branch lines or junctions
F25B 41/24 - Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
45.
CELL STRUCTURE OF SEMICONDUCTOR DEVICE, PREPARATION METHOD THEREOF AND SEMICONDUCTOR DEVICE
EDGELESS SEMICONDUCTOR CO., LTD. OF ZHUHAI (China)
Inventor
Lin, Yiren
Shi, Bo
Xiao, Ting
Abstract
Disclosed are a cell structure of a semiconductor device, a preparation method thereof and a semiconductor device. The cell structure includes: a substrate of a first conductive type; at least one first trench gate, at least one second trench gate, at least one third trench gate, and at least one fourth trench gate that are sequentially disposed side by side in an upper surface of the substrate; a source region of the first conductive type located in an upper surface of the well region and disposed on two sides of each trench gate; and an emitter metal layer located above the substrate and electrically connected to the source region, where the first trench gate, the second trench gate, and the third trench gate are isolated from the emitter metal layer by a first interlayer dielectric layer, and the fourth trench gate is electrically connected to the emitter metal layer.
A method and apparatus for controlling a multi-module water chilling unit. The multi-module water chilling unit comprises at least two modules, wherein each module is provided with a chilled-water inlet and a corresponding chilled-water outlet, each module is provided with a compressor, and chilled-water outlets of the modules converge at a main pipe by means of the corresponding compressors. The method comprises: acquiring the deviation between an actual water output temperature of a main pipe and a target water output temperature; acquiring the current operation state of a compressor of each module; determining a target control strategy for each module according to the deviation and the current operation state; and controlling the operation of each module according to the target control strategy. In this way, the problem in the related art of the service life of a unit being shortened due to modules being in a load imbalance state for a long time is solved.
The present application relates to the technical field of electronics, and relates to a key control circuit, method and apparatus, a device, a storage medium, and a remote controller. The key control circuit comprises a key module, a power source module, a control module and a power supply control module. When operated, the key module is used for simultaneously turning on a path between the power source module and the control module and a key-coded signal trigger path. When a power source signal has been acquired in a power-off state, the control module is used for starting timing and outputting a first control signal to the power supply control module, wherein the first control signal is used for controlling the power supply control module to turn on, so as to supply power to the control module within a preset delay duration by means of the power source module; and after the key module is not operated within the preset delay duration, the control module is used for outputting a second control signal to the power supply control module, wherein the second control signal is used for controlling the power supply control module to turn off, such that the power source module stops supplying power to the control module. The present application is used to solve the problem of the power consumption of a remote controller being relatively high when same is in a standby state.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02H 3/027 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - Details with automatic disconnection after a predetermined time
H02H 7/18 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for accumulators
The present application relates to a self-moving device deployment method and apparatus, an electronic device, and a storage medium. The method comprises: obtaining position information of a target object in each area; determining a movement trajectory of the target object in each area according to the position information; determining a deployment position of a self-moving device in each area according to the movement trajectory; and controlling the self-moving device to move to the deployment position. Thus, the deployment position of the self-moving device can be determined according to the movement trajectory of the target object, the self-moving device is controlled to move to the deployment position, so that the daily movement of the target object is not hindered. The target object does not need to walk near the self-moving device, so that the movement of the self-moving device is more intelligent, thereby improving the experience of the object.
The present disclosure relates to an airflow generating device and a humidifier. The airflow generating device comprises a housing, a rotating source, a wind wheel and an anti-disengagement member. The housing is provided with an air inlet, an air outlet, and an air duct which is connected between the air inlet and the air outlet. The rotating source is fixedly arranged on the housing. The wind wheel is arranged in the air duct and is detachably connected to a rotating shaft of the rotating source. The anti-disengagement member is detachably connected to the housing and is located at the side of the wind wheel away from the rotating source, and when the anti-disengagement member is connected to the housing, a distance between the anti-disengagement member and a center line of the air inlet is less than the radius of the wind wheel. The airflow generating device in the present disclosure can overcome the defect of a wind wheel of an airflow generating device in the related art being prone to disengaging and resulting in having an influence on the operation of the entire machine, thereby having better safety. In addition, the airflow generating device in the present disclosure has a simple structure, is convenient to manufacture, and is practical, safe and reliable, therefore being convenient to implement, popularize and apply.
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
50.
INTELLIGENT POWER MODULE AND MANUFACTURING METHOD THEREOF
EDGELESS SEMICONDUCTOR CO., LTD. OF ZHUHAI (China)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI (China)
Inventor
Jiang, Wei
Shi, Bo
Zeng, Dan
Cao, Jun
Liao, Yongbo
Xiao, Ting
Abstract
Disclosed are an intelligent power module and a manufacturing method thereof, which relate to the technical field of electronic devices. The intelligent power module includes a substrate, wherein a chip and a plurality of conductive pins are arranged on the substrate, one end of each of the conductive pins is connected to the chip, and a solder pin is formed at an end portion of the other end of the conductive pin; and an external pin frame, including a plurality of leads, and a connection structure is formed at an end portion of one end of each of the lead; and the connection structure includes a connection portion, and support portions, wherein an arrangement direction of the support portions is the same as that of the solder pins, an accommodation space is formed between the two support portions, and the solder pin is located between the two support portions.
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups
The present disclosure relates to an air treatment device. The air treatment device comprises a housing, in which an accommodating cavity having a first opening is formed; and an air duct assembly, which enters and exits the accommodating cavity along a predetermined sliding path via the first opening. The air duct assembly in the present disclosure slides into and out of the accommodating cavity of the housing from the first opening along the predetermined sliding path, so that the air duct assembly can be mounted in the housing. During the process of the air duct assembly sliding into the accommodating cavity, the air duct assembly is simultaneously aligned with the housing. Therefore, the assembly between the air duct assembly and the housing can be completed merely by sliding the air duct assembly to a defined position. The air duct assembly is assembled in the above sliding mode so as to solve the problem of alignment difficulties when mounting the air duct assembly. Moreover, the sliding mode is more convenient to operate, and can increase the assembly efficiency.
F24F 1/029 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by the layout or mutual arrangement of components, e.g. of compressors or fans
A cross-flow fan blade and an air conditioner. The cross-flow fan blade comprises a plurality of vanes (1); the plurality of vanes (1) are arranged at intervals around the rotation axis of the cross-flow fan blade; the vanes (1) are provided with vane center lines (11); on the cross sections of the vanes (1), the vane center lines (11) are arc lines; from the middle position to the two end positions of each vane center line (11), the thickness of each vane (1) first gradually increases and then gradually decreases. On a flow path of airflow of the cross-flow fan blade, each thickness is distributed to form a double-hump shape, so that the separation loss of the airflow can be reduced.
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
53.
POSITIONING METHOD, POSITIONING APPARATUS, COMPUTER READABLE STORAGE MEDIUM, AND POSITIONING SYSTEM
The present disclosure provides a positioning method, a positioning apparatus, a computer readable storage medium, and a positioning system. The method comprises: obtaining integrated signal strength and first-path signal strength; obtaining an initial distance value between a sending device and a receiving device and initial location information of the sending device; determining a correction distance value according to the integrated signal strength and the first-path signal strength, and correcting the initial distance value by using the correction distance value to obtain a target distance value; and correcting the initial location information according to the target distance value to obtain target location information. According to the solution, multi-link NLOS environment correction is performed on the location information of the sending device, so that the location information and a navigation route of the sending device in an NLOS environment can be corrected, the degree of influence on positioning of the sending device in the NLOS environment is reduced, and the positioning precision of the sending device in the NLOS environment is improved.
The present invention discloses a defrosting control method and device, and an air conditioner, which relate to the technical field of defrosting. The defrosting control method comprises: when the air conditioner operates in a heating mode, detecting the environment temperature, the environment humidity and the low pressure of the air conditioner according to a preset period; determining the frosting condition of the air conditioner according to the environment temperature, the environment humidity and the low pressure; and determining whether to defrost according to the frosting condition of the air conditioner and the heating capacity change of the air conditioner.
A control method and apparatus for a speech recognition device, and an electronic device and a storage medium. The method comprises: when a speech recognition device is in a dormant state, and when it is detected that a target object gazes at the speech recognition device, recording the current time as a first time (S201); when it is detected that the target object produces speech, recording the current time as a second time (S202); and when the time interval between the first time and the second time meets a preset condition, awakening the speech recognition device, such that the speech recognition device enters a speech control mode (S203). In the method, the speech recognition device is awakened according to the time interval between the time when the target object gazes at the speech recognition device and the time when the speech is emitted, and it is unnecessary for the target object to send a wake-up word first to awaken the speech recognition device, thereby reducing the complexity of awakening a speech device and improving the user experience.
111. The air conditioner control method of the present application solves the problems in the prior art that when an air conditioner is in a defrosting mode, an indoor ambient temperature is reduced obviously, and the comfort of a user is affected.
F24F 11/42 - Defrosting; Preventing freezing of outdoor units
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Provided in the present application are an inertia adjusting mechanism and an electric motor. The inertia adjusting mechanism comprises: a plurality of inertia discs, wherein each inertia disc is rotatably arranged on an inertia disc mounting portion around the axis of a rotating shaft, the plurality of inertia discs are sequentially sleeved in a direction away from the axis of the rotating shaft, and any two adjacent inertia discs are arranged at an interval; and a multi-jaw clamping disc, wherein the multi-jaw clamping disc comprises a clamping disc and a plurality of clamping jaws, the clamping disc is sleeved on the rotating shaft and is fixedly connected to the rotating shaft, the plurality of clamping jaws are arranged at intervals around the axis of the rotating shaft, and each clamping jaw is movably arranged on the clamping disc in a direction close to or away from the rotating shaft so as to grab one of the plurality of inertia discs and drive the corresponding inertia disc to rotate with the rotating shaft so as to adjust a rotational inertia of the rotating shaft, so that the problem of the rotational inertia of a servo motor in the prior art being unable to be adjusted is solved.
The present application discloses an injection molding device and an injection molding machine. The injection molding device comprises an injection platform base and a plasticizing assembly, wherein the injection platform base is slidably connected to the plasticizing assembly, an adjusting assembly is provided between the injection platform base and the plasticizing assembly, the plasticizing assembly moves relative to the injection platform base, and the adjusting assembly is used for releasing the acting force generated by the deformation of the injection platform base on the plasticizing assembly. According to the technical solution provided by the present application, the adjusting assembly is provided between the plasticizing assembly and the sliding assembly, and the adjusting assembly is used for releasing the acting force of the deformation of the injection platform base on the sliding assembly, thereby reducing the force of the deformation of the injection platform base in a working process additionally acting on the sliding assembly, the sliding assembly is basically not subjected to the action of a deformation force so as to protect the sliding assembly, the material is saved, and the cost is reduced.
The present application discloses a humidifying electric heater, comprising: a housing; a humidifying component, arranged in the housing, the humidifying component being used for humidifying airflow; a heating device, arranged in the housing, the heating device being used for heating airflow; and a water supply component, the water supply component being communicated with the humidifying component, the water supply component supplying water to the humidifying component, the water supply component comprising a heating section located in the housing, and the heating section being arranged at the position of the heating device. The humidifying electric heater of the present application effectively solves the problem in the related art of a poor humidifying effect of humidifying electric heaters.
The present disclosure relates to a network communication method and apparatus for a multi-split air-conditioning system, and a multi-split air-conditioning system. The network communication method for a multi-split air-conditioning system comprises: acquiring in real time a number of sent data and a number of received data of each indoor unit equipment node; determining the current network communication quality level according to the number of sent data and the number of received data of each indoor unit equipment node; and controlling the data sending frequency and/or the data sending mode in the current network according to the network communication quality level. According to the present disclosure, the data sending and receiving condition of each indoor unit equipment node is identified, the current network communication quality level is accurately determined, and the data sending frequency and/or the data sending mode in the whole communication network is dynamically adjusted according to the network communication quality level to meet the communication reliability requirements.
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
H04L 43/08 - Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
F24F 11/58 - Remote control using Internet communication
61.
NETWORK CONFIGURATION METHOD FOR SMART HOME DEVICE, AND TERMINAL DEVICE AND PROCESSOR
Provided in the present disclosure are a network configuration method for a smart home device, and a terminal device and a processor. The network configuration method is applied to the terminal device, and the terminal device is provided with a display screen. The network configuration method comprises: in response to a first selection operation, which acts on a display screen, sending a network configuration instruction to a plurality of alternative smart home devices, wherein the alternative smart home devices are pre-selected from among a plurality of smart home devices in response to the first selection operation; in response to a second selection operation, which acts on the display screen, sending network configuration confirmation information to a target smart home device, and sending network configuration cancellation information to the other smart home devices, so that network configuration is performed on the target smart home device according to the network configuration instruction, and no network configuration is performed on the other smart home devices. It is ensured that the efficiency of performing network configuration on a smart home device is relatively high and the use experience of a user is relatively good, thereby solving the problem of the network configuration efficiency for the smart home device is relatively low in the prior art.
The present application discloses an injection molding apparatus and an injection molding machine. The injection molding apparatus comprises an injection base assembly, a plasticizing assembly and a lead screw assembly. The plasticizing assembly is connected to the lead screw assembly; the lead screw assembly passes through the injection base assembly; openings are formed on two sides of the injection base assembly in a first direction; and the lead screw assembly drives the plasticizing assembly to perform a plastic injection action on the injection base assembly. According to the technical solution provided by the present application, the mounting direction of a plasticizing base assembly can be changed, so that the injection base assembly is not prone to deformation when being stressed, and machining is facilitated. A plastic injection guide rail is mounted on the side wall of a bottom plate, and when the injection base assembly is stressed, a sliding block moves in a direction perpendicular to a plastic injection direction, so that the guide rail and the sliding block are not prone to damage. The mounting position of the plasticizing assembly is changed, thereby facilitating mounting and maintenance.
The present application discloses a humidifying electric heater. The humidifying electric heater comprises: a housing, air outlets being formed in the housing; a heating device, provided in the housing; and an evaporating pan, the evaporating pan being provided in the housing, and the evaporating pan being located between the heating device and the air outlets. The evaporating pan is provided with flow channels, and air heated by the heating device passes through the evaporating pan through the flow channels and flows towards the air outlets. According to the present application, the flow channels are formed in the evaporating pan, so that warm air can directly pass through the evaporating pan through the flow channels, thus the warm air is prevented from bypassing the evaporating pan, making the flow of the air smoother, thereby improving a heating effect.
F24D 13/02 - Electric heating systems solely using resistance heating, e.g. underfloor heating
F24D 19/00 - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR - Details
F24F 6/10 - Air-humidification by evaporation of water in the air using heated wet elements heated electrically
64.
EARLY WARNING METHOD AND DEVICE, AND POWER SUPPLY AND CONSUMPTION SYSTEM
Disclosed are an early warning method and device, and a power supply and consumption system. The early warning method comprises: acquiring power of circuit nodes in a power supply and consumption system in real time; calculating, according to the acquired power and a series/parallel connection relationship of the circuit nodes, electric energy loss reference values of circuits in real time; and performing early warning according to the electric energy loss reference values.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G08B 31/00 - Predictive alarm systems characterised by extrapolation or other computation using updated historic data
G08B 25/08 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
65.
CIRCUIT BOARD FASTENING MEMBER, ELECTRICAL BOX ASSEMBLY, AND ELECTRICAL APPLIANCE
The present application relates to a circuit board fastening member, an electrical box assembly, and an electrical appliance. The circuit board fastening member comprises: a body, comprising a bottom plate, the bottom plate being used to support a circuit board of the electrical appliance; and a wire fastening structure, which is disposed on the body and comprises: a first wire fastening part, comprising a wire fastening part and a wire passing part, wherein the wire fastening part is used to fasten a strong wire, the wire passing part allows the strong wire to pass through before reaching the wire fastening part, and the strong wire comprises at least one of an electric heating wire and a water pump wire of the electrical appliance; and/or a second wire fastening part, which is used to fasten an external cable that extends from the outside of the electrical appliance to the inside of an electrical box of the electrical appliance and that is connected to the circuit board. On the basis of the foregoing, the performance of the electrical appliance can be improved.
The present disclosure provides a motor rotor, a motor, and an electric vehicle. The motor rotor comprises: a rotor core, provided with magnetic steel grooves and at least two magnetic barrier grooves. The two magnetic barrier grooves are symmetrically arranged relative to a D-axis of the rotor core; the two magnetic barrier grooves are located at positions between the magnetic steel grooves and the radial outer edge of the rotor core; the magnetic barrier grooves are not connected to the radial outer edge; the cross section of each magnetic barrier groove is a rectangular groove; an included angle ranging from 0° to 180° is formed between the extension lines of the long edges, facing the radial inner side, of the two rectangular grooves, so that the opening of the included angle faces the center of the rotor core to form an inverted V-shaped magnetic barrier structure. In the present disclosure, the inverted V-shaped magnetic barrier structure can be effectively distributed at the tail end of the D-axis of the rotor, so that an electromagnetic excitation force and torque ripple of the motor can be effectively reduced while the output performance of the motor is not affected, and thus the noise of the motor is reduced.
The present application relates to a water softener. The water softener comprises: a water softening device (100) and an integrated water path (800) which are connected to each other, wherein the integrated water path (800) is provided with a raw water supply channel in communication with a raw water source. The water softener has a soft water supply state and a non-soft water supply state, wherein when the water softener is in the soft water supply state, the raw water supply channel is blocked; and when the water softener is in the non-soft water supply state, the raw water supply channel is opened.
The present application provides a heater, comprising: a centrifugal fan (10); an air duct assembly (20), the centrifugal fan (10) being disposed in the air duct assembly (20); and a heating assembly (30), the heating assembly (30) being arranged at an air outlet of the air duct assembly (20), and the heating assembly (30) being provided with a first area opposite to the centrifugal fan (10) and a second area staggered relative to the centrifugal fan (10), wherein the amount of air outputted by the first area is greater than that of the second area, and the heating assembly (30) has a greater unit heating capacity at the first area than at the second area.
F24F 3/04 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the pressure or velocity of the primary air operating with high pressure or high velocity
The present application relates to a fan heater, comprising a housing (10), a plurality of centrifugal wind wheels (20), and a heating assembly (30). The housing (10) has an exhaust air duct and at least one air intake duct, and the housing (10) further has an exhaust vent (121) and at least two air inlets (111). The exhaust air duct is in communication with the exhaust vent (121), and the same air intake duct is in communication with the at least two air inlets (111). At least one centrifugal wind wheel (20) is provided in the air intake duct. The heating assembly (30) is provided at a position in which the air intake duct is in communication with the exhaust air duct, so as to heat air blown out by the centrifugal wind wheel (20), and the air is discharged by the exhaust vent (121).
F24F 1/0033 - Indoor units, e.g. fan coil units characterised by fans having two or more fans
F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
A manipulator guide rail slider lubrication control method. According to specification information and operation information of apparatuses to be lubricated (9-1, 9-2), a lubricant injection period of the apparatuses to be lubricated (9-1, 9-2) is accurately calculated and independently controlled, and a lubricant consumed during operation of the apparatuses to be lubricated (9-1, 9-2) is supplemented in time, so that lubricant waste can be avoided while lubrication is ensured. In addition, pressure monitoring and single lubricant injection condition monitoring of oil pipes (3, 10) are also realized, and the automatic lubrication operation is ensured. Further disclosed are a control apparatus (121), an electronic device, a control system, and a storage medium.
F16N 29/04 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling moving parts to be stopped
F16N 29/02 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
This application provides a method and an apparatus for establishing a scene. The method for establishing the scene includes: receiving current state information of all devices in a target folder sent by a terminal, and the target folder is a set of devices that support scene establishment; establishing a target scene according to the current state information; and sending state information corresponding to the target scene to the terminal, and the state information corresponding to the target scene is locally pre-stored according to user demands.
The present disclosure relates to an air conditioner pipeline device and an air conditioner. The air conditioner pipeline device includes a gaseous refrigerant connecting pipe and a liquid refrigerant connecting pipe which are configured to be connected between an indoor unit and an outdoor unit of the air conditioner. At least one of the gaseous refrigerant connecting pipe and the liquid refrigerant connecting pipe adopts a multi-layer pipe. The multi-layer pipe includes at least two conductive pipes, sequentially and coaxially sleeved along a radial direction of the multi-layer pipe and configured to be connected to a power supply of the air conditioner to transmit power to the air conditioner, where an internal area of the innermost layer of conductive pipe is used for a refrigerant to flow; and first insulating layers, configured to achieve insulation of at least two conductive pipes.
F24F 3/06 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
73.
OIL RETURN STRUCTURE OF COMPRESSOR, COMPRESSOR, AND AIR CONDITIONER
An oil return structure of a compressor, a compressor, and an air conditioner. The oil return structure of a compressor comprises: a static disc (2) and a cover body (1); the end surface of the static disc (2) facing the cover body (1) is provided with a first protrusion (21) protruding towards the cover body (1), and/or the end surface of the cover body (1) facing the static disc (2) is provided with a second protrusion (110) protruding towards the static disc (2); the first protrusion (21) matches the cover body (1), or the second protrusion (110) matches the static disc (2), or the first protrusion (21) matches the second protrusion (110), so as to define, around the inner periphery of the protrusion, a cavity for gas discharging and/or oil separation; the inner periphery of the cover body (1) and the outer periphery of the protrusion jointly define an oil storage cavity (100) capable of being used for oil storage; and the oil storage cavity (100) is located on the radial outer side of the cavity for gas discharging and/or oil separation. According to the oil return mechanism of a compressor, the oil storage cavity is effectively formed, and the weight and the size of the compressor are not increased while an oil storage volume for lubricating oil is increased.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
The present application relates to a water softener, comprising: a water softening device (100) and a regeneration device (600) connected to each other. The water softener has a first regeneration state and a second regeneration state. When the water softener is in the first regeneration state, the regeneration device (600) provides first brine having a first concentration to the water softening device (100), and when the water softener is in the second regeneration state, the regeneration device (600) provides second brine having a second concentration to the water softening device (100), wherein the first concentration is unequal to the second concentration.
An AGV trolley cargo-carrying operation control method and apparatus, a storage medium, and a control device, which can guarantee stable operation and also avoid cargo damage during a cargo-carrying operation process of the AGV trolley. A target AGV trolley is provided with a carrying platform (1) carrying cargo (4) and a holding plate (3) clamping the cargo (4). The method comprises: during the cargo-carrying operation process of the target AGV trolley, monitoring operation state information of the target AGV trolley and a relative change in the pressure of the cargo (4) on the carrying platform (1) (S101); determining whether the relative change in the pressure satisfies a preset condition (S102); and when the relative change in the pressure does not satisfy the preset condition, according to the operation state information of the target AGV trolley and attribute information of the cargo (4), adjusting the holding pressure of the holding plate (3) on the cargo (4), such that the relative change in the pressure satisfies the preset condition (S103).
The present application relates to a pump body assembly, a compressor and an air conditioner with same. The pump body assembly comprises a crankshaft (1), a compression structure (2), and a separation structure (3), wherein the crankshaft (1) is provided with an oil hole (11); the compression structure (2) comprises at least two air cylinder structures; each air cylinder structure is provided with a sliding sheet groove (23); a movable sliding sheet structure (5) is provided in each sliding sheet groove (23); the separation structure (3) separates two adjacent air cylinder structures; the separation structure (3) is provided with an oil guide path; and the oil guide path makes the oil hole (11) communicate with each sliding sheet groove (23).
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
The present disclosure relates to a refrigerating cabinet, comprising: a cabinet body, which comprises a cabinet door; a plurality of shelves, which are arranged in the cabinet body in a vertical spaced manner; and a cover plate, which is arranged in the cabinet body and is adjacent to a top wall of the cabinet body. The cover plate is provided with an air return port and an air guide plate, wherein the air guide plate is connected to the side edge of the air return port close to the cabinet door, and extends obliquely downwards. An included angle between the air guide plate and a first line segment OB is less than an included angle between a second line segment OC and the first line segment OB, wherein a first point O is selected at the position where the air return port and the air guide plate are connected, and a vertical line is made by passing the first point O to serve as the first line segment OB; a point of intersection of the first line segment OB and the first shelf of the plurality of shelves located on the topmost layer is a second point B, the shortest connection line between the first point O and the side edge of the first shelf furthest away from the cabinet door is a third line segment OA, point A is a point on the first shelf and serves as a third point A, a point between the third point A and the second point B is a fourth point C, and a connection line between the first point O and the fourth point C serves as the second line segment OC. The present disclosure can guarantee the amount of air return, such that hot air that may be drawn in is reduced.
An air duct assembly, a cross-flow fan, and an air conditioning device. The air duct assembly comprises a volute casing (1), a volute tongue (2), and an impeller (3); the volute tongue (2) comprises a first portion (21) and a second portion (22), the first portion (21) is matched with the volute casing (1) to envelop the impeller (3), and an air outlet (7) is formed between the second portion (22) and the volute casing (1); an angle α is equal to an angle β, wherein the angle α is an angle formed by a connecting line OA and a connecting line OC, the angle β is an angle formed by a connecting line OB and a connecting line OC, O is a circle center point of the radial section of the impeller (3), A is a point, closest to the circle center point O, on the volute casing (1), B is a point, closest to the circle center point O, on the first portion (21), and C is a point, closest to the circle center point O, on an extension line of the second portion (22). Such an arrangement can reduce air suction resistance, air can be smoothly blown out, and thus the air duct assembly is uniform in air supply and stable in operation.
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
F04D 29/42 - Casings; Connections for working fluid for radial or helico-centrifugal pumps
A compressor and an air conditioner. The compressor comprises a crankshaft (2), a first roller (6), a second roller (9), an electric motor rotor (3), and a balance weight (1); wherein the first roller (6) is of a solid structure, the second roller (9) is internally provided with a hollow portion (90), the balance weight (1) is arranged at one axial end of the electric motor rotor (3), and no balance weight is arranged at the other axial end of the electric motor rotor (3); the center of mass of a first eccentric portion (20) and the first roller (6) is a first center of mass, and the axis of the first center of mass passes through the first center of mass and is parallel to the axis of the crankshaft (2); the center of mass of a second eccentric portion (21) and the second roller (9) is a second center of mass, and the axis of the second center of mass passes through the second center of mass and is parallel to the axis of the crankshaft (2); the center of mass of the balance weight (1), the axis of the first center of mass, and the axis of the second center of mass are positioned in the same plane; and in the plane, the first center of mass is positioned on a first side of the axis of the crankshaft (2), and the center of mass of the balance weight (1) is positioned on a second side of the axis of the crankshaft (2), so that the axis of the crankshaft (2) is positioned between the center of mass of the balance weight (1) and the first center of mass, and the second center of mass is positioned on the second side of the axis of the crankshaft (2). By means of the structure, the quantity and the mass of the balance weight can be decreased, the deflection of the crankshaft can be lowered, and the vibration and the noise level of the compressor can be reduced; the contact stress between the crankshaft and a flange is reduced, the power consumption of electric motor driving is reduced, and the energy efficiency is improved; and the weight of an entire machine is lowered.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
80.
ROOM AREA ACQUISITION METHOD, AIR CONDITIONER OUTDOOR UNIT CONTROL METHOD, APPARATUS AND AIR CONDITIONING SYSTEM
The present disclosure relates to a room area acquisition method, an air conditioner outdoor unit control method, an apparatus and an air conditioning system. The room area acquisition method comprises: setting a room area initial value according to air conditioner model parameters; acquiring a stable operation duration of an air conditioner outdoor unit from stable operation after starting to a shutdown when reaching a temperature point and the number of shutdowns; estimating a deviation between the room area initial value and a room area actual value according to the stable operation duration and the number of shutdowns, and outputting a deviation result; adjusting the room area initial value according to the deviation result, and performing estimation again according to the adjusted room area value; and taking the current room area value as the room area actual value when the deviation result output from the current estimation is different from the deviation result output from the last estimation.
A mixed flow fan and a duct type air conditioner. The mixed flow fan comprises a volute (10), an impeller (20), and a rear guide vane structure (30); the impeller (20) is disposed inside the volute (10); the impeller (20) comprises blades (21), and the maximum height of the blades (21) in the axial direction of the impeller (20) is H1; the rear guide vane structure (30) is disposed at an air outlet of the volute (10); the maximum height of the rear guide vane structure in the axial direction of the impeller (20) is H2, and the range of H2/H1 is 0.4-0.7. The duct type air conditioner comprises the mixed flow fan. The mixed flow fan can provide sufficient air volume and pressure by adjusting the ratio of the maximum height of the rear guide vane structure to the maximum height of the blades in the axial direction of the impeller, so that pressure performance of the fan can be improved at the cost of lower resistance, and the efficiency of the fan is improved.
A mixed flow fan and an air duct-type air conditioner. The mixed flow fan comprises an inner shell (4), provided between an impeller (2) and an air outlet (12), an annular air duct being formed between the outer surface of the inner shell and the inner surface of a volute (1); and a rear guide vane structure, provided in the annular air duct, a divergent angle a of the rear guide vane structure ranging from 10° to 40°. The static pressure of air outlet of the impeller and the airflow velocity are adjusted by means of the divergent angle a of the rear guide vane structure, thereby effectively improving the air outlet effect of the mixed flow fan, and ensuring that the optimal heat exchange effect can be achieved in both a waterfall type refrigeration mode and a rapid heating mode of the air duct-type air conditioner.
A mixed-flow fan and an air-duct type air conditioner comprising same. The mixed flow fan comprises a volute (1), an impeller (2) and a rear guide vane structure. The volute (1) is provided with an air outlet (12), and the impeller (2) is arranged inside the volute (1). The rear guide vane structure is arranged between the air outlet (12) and the impeller (2); a gap (13) is provided between the rear guide vane structure and the impeller (2); and the ratio of the height H of the gap (13) to the height H2 of the impeller (2) ranges from 0.18 to 0.24. In the mixed-flow fan, by defining the gap between the rear guide vane structure and the impeller, the guide vane structure can effectively guide the air output of the impeller, thereby improving the efficiency of the mixed-flow fan.
A mixed flow fan and a ducted air conditioner. The mixed flow fan comprises: a volute (1), an air outlet (12) being formed in the volute; an impeller (2), the impeller being arranged in the volute; and an inner shell (4), the inner shell being arranged between the impeller and the air outlet, an annular air duct (13) being formed between the outer surface of the inner shell and the inner surface of the volute, and the width of the annular air duct being gradually increased in a direction from the impeller to the air outlet. According to the mixed flow fan and the ducted air conditioner, the width of an annular flow channel is gradually increased to adjust a static pressure of wind output of the impeller and airflow velocity, such that the wind output effect of the mixed flow fan is effectively improved, the optimal heat exchange effect can be achieved in a waterfall type refrigeration mode and a rapid heating mode of the ducted air conditioner, and meanwhile, a rear guide vane structure is expanded along with the increase of the width of the annular flow channel, thereby guaranteeing the adjustment effect of the rear guide vane structure on the wind output of the impeller.
A mixed flow fan and an air duct-type air conditioner. The mixed flow fan comprises: a volute (10); and a flow concentrator (20), the flow concentrator (20) being arranged at an air inlet position of the volute (10), the flow concentrator (20) having a flow guide channel (21) in communication with the interior of the volute (10), and the inner diameter of the inlet end of the flow guide channel (21) being D1; an impeller (30), the impeller (30) being arranged inside the volute (10), the maximum diameter of the impeller (30) being D2, and the range of D1/D2 being 0.8-0.9. For the mixed flow fan, by regulating the ratio of the inner diameter of the inlet end of the flow guide channel (21) to the maximum outlet diameter of the impeller (30), an air flow faces a smaller resistance force and generates less turbulent flows when flowing through the flow concentrator (20) and the impeller (30). Therefore, under the condition of a limited overall size of the mixed flow fan, the mixed flow fan has an improved working capacity and thus achieves higher efficiency.
A mixed flow fan and an air duct type air conditioner. The mixed flow fan comprises: a volute (10); and an impeller (20), the impeller (20) being provided inside the volute (10), the impeller (20) comprising blades (21), and the ratio of the maximum height H of the blades (21) in the axis direction of the impeller (20) to the maximum diameter D of the impeller ranging from 0.38 to 0.48. According to the mixed flow fan and the air duct type air conditioner, the problem that a mixed flow fan is low in energy efficiency is effectively solved.
A mixed-flow fan and a duct-type air conditioner. The mixed-flow fan comprises: an outer shell (10) provided with an air inlet (11) and an air outlet (12); an inner shell (20) arranged in the outer shell (10), an air duct (13) bringing the air inlet (11) into communication with the air outlet (12) being formed between the outer shell (10) and the inner shell (20); and an impeller, a hub (30) of the impeller being rotatably disposed on the inner shell (20), and an outer surface of the hub (30) being connected to an outer surface of the inner shell (20) to form a first flow guide surface (40). In the mixed-flow fan, the profile of the first flow guide surface (40) is modified, which can effectively increase dynamic pressure of airflow in the air duct and better convert the dynamic pressure into static pressure, so as to increase the air output amount, thereby improving the performance of the mixed-flow fan.
The present disclosure provides a magnetic bearing and a compressor. The magnetic bearing comprises an outer iron core; a first iron core is sleeved in the outer iron core; a permanent magnet is provided between the first iron core and the outer iron core; a bearing rotor is sleeved in the first iron core; a first coil is provided on only one side of the first iron core in the axial direction; the first coil may generate a magnetic field when energized; the first coil can work in conjunction with the permanent magnet to generate axial magnetic force on the bearing rotor, so that the bearing rotor is axially suspended; a second coil is wound on the first iron core; the second coil may generate a magnetic field when energized; and the second coil can work in conjunction with the permanent magnet to generate radial magnetic force on the bearing rotor, so that the bearing rotor is radially suspended. According to the present disclosure, the defects in the related art that two axial coils are required, the cost is high, and the axial coils occupy a large space can be overcome.
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
A magnetic bearing, a compressor and an air conditioner. The magnetic bearing comprises: an axial iron core (5), permanent magnets (2), a magnetic conductive ring (7) and a magnetic steel fixing frame (12); the permanent magnets (2) comprise a first permanent magnet (21) located on one axial side of the magnetic conductive ring (7) and a second permanent magnet (22) located on the other axial side of the magnetic conductive ring (7); the first permanent magnet (21) is located between the magnetic conductive ring (7) and the axial iron core (5) and is respectively connected to the magnetic conductive ring (7) and the axial iron core (5); the second permanent magnet (22) is located between the magnetic conductive ring (7) and the axial iron core (5) and is respectively connected to the magnetic conductive ring (7) and the axial iron core (5). The magnetic steel fixing frame (12) can fix and support the radial inner sides of the permanent magnets (2). According to the magnetic bearing, the compressor and the air conditioner, the bias magnetic fields on the two axial sides are more uniform, and the supporting, fixing and positioning effects on the partitioned permanent magnets are improved, so that the bias magnetic fields are further made more stable, the distribution of the bias magnetic fields is more uniform, and the output load of the axial magnetic bearing is stable.
A fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), a cross groove structure (30), sliding blocks (40), and two flanges (50). The crankshaft (10) is provided with two eccentric portions (11) in an axial direction of the crankshaft; the crankshaft (10) and the cylinder sleeve (20) are eccentrically provided and an eccentric distance is fixed; the cross groove structure (30) is rotatably provided in the cylinder sleeve (20), and the two eccentric portions (11) correspondingly extend into two through holes (41) of two sliding blocks (40); the cylinder sleeve (20) is provided with at least one radial air suction hole (21), the radial air suction hole (21) is used for being communicated with a variable volume cavity, and a ratio S/V of a cross-sectional area S of a hole cross section of a single radial air suction hole (21) to a discharge volume V of the fluid machine ranges from 0.006 to 0.01. The fluid machine ensures high volumetric efficiency thereof.
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
A fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a liner (20), a cross groove structure (30), a sliding block (40) and two flanges (50). Two eccentric parts (11) are provided in the axial direction of the crankshaft (10). The crankshaft (10) and the liner (20) are eccentrically arranged with fixed eccentric distance. The cross groove structure (30) is rotatably arranged in the liner (20). The two eccentric parts (11) extend into the two corresponding through holes (41) of the two sliding blocks (40). Exhaust channels (51) are formed in the two flanges (50). The two exhaust channels (51) are respectively communicated with the variable-volume cavities on the corresponding sides. The cross-sectional area of the exhaust channel (51) is 0.5% to 35% of the projection area of the sliding block (40) in the sliding direction thereof. In the fluid machine, the exhaust channels are arranged on the flange to lower the noise and reduce the processing difficulty.
A fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), a cross slot structure (30), sliding blocks (40) and two flanges (50). The crankshaft (10) is provided with two eccentric parts (11); the crankshaft (10) and the cylinder sleeve (20) are eccentrically arranged, and the eccentric distance is fixed; the cross slot structure (30) is rotatably arranged in the cylinder sleeve (20); two limiting channels (31) of the cross slot structure (30) are sequentially arranged in the axial direction of the crankshaft (10); the limiting channels (31) extend perpendicular to the axial direction of the crankshaft (10); the two eccentric parts (11) correspondingly extend into two through holes (41) of the two sliding blocks (40); at least one of the two flanges (50) is provided with an air inlet channel (54); the air inlet channel (54) comprises a radial air suction hole (541) and an axial air suction hole (542) sequentially communicated with each other; and the ratio S/V of the cross-sectional area S of a hole cross-section of the radial air suction hole (541) to the displacement V of the fluid machine ranges from 0.006 to 0.01. The fluid machine has high energy efficiency, low noise and stable operation.
A fluid machine and heat exchange equipment. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), a cross groove structure (30), slide blocks (40), and two flanges (50); the crankshaft (10) is provided with two eccentric parts (11); the crankshaft (10) and the cylinder sleeve (20) are eccentrically arranged and an eccentric distance is fixed; the cross groove structure (30) is rotatably provided in the cylinder sleeve (20); two limiting channels (31) of the cross groove structure (30) are sequentially arranged in an axial direction, and the limiting channels (31) extend in a direction perpendicular to the axial direction of the crankshaft (10); the two eccentric parts (11) correspondingly extend into two through holes (41) of the two slide blocks (40); a first axial exhaust hole (511) is formed in at least one flange (50), and a second axial exhaust hole (512) is formed in at least one flange (50); the edge of an inner circle on at least one end of the cylinder sleeve (20) is provided with an oblique incision (27); the oblique incision (27) is in communication with the first axial exhaust hole (511); a side wall surface of the cylinder sleeve (20) is provided with at least one exhaust port (22); and the exhaust port (22) is in communication with the second axial exhaust hole (512). The fluid machine is high in energy efficiency, low in noise, and stable in operation.
A magnetic bearing and a compressor comprising same. The magnetic bearing comprises an axial control assembly (100) and a radial control assembly (200), wherein the axial control assembly (100) comprises an axial iron core (101) and an axial winding assembly (102) located in the axial iron core (101), and the axial winding assembly (102) is sleeved on an outer circumferential side of the radial control assembly (200). The technical solution reduces the occupied space along the length of a rotating shaft, such that the rotating shaft can be designed to have a shorter length, and can be correspondingly designed to have a higher limit rotation speed, and a winding can be wound easily, which thus can ensure the space factor of the winding. Therefore, the winding has a more compact structure and a smaller volume while the bearing has the same performance. Moreover, a winding lead of the axial winding assembly (102) located on an outer side can be led out more conveniently.
The present disclosure relates to a mixed flow fan and a duct type air conditioner. The mixed flow fan comprises: a volute, an air outlet being provided in the volute; and a flow guide cone, the flow guide cone being provided at the air outlet, and airflow of the air outlet flowing through the flow guide cone. A generatrix of the flow guide cone comprises a straight line section and a curve section which are connected. According to the mixed flow fan and the duct type air conditioner provided by the present disclosure, the generatrix of the flow guide cone is set as the straight line section and the curve section. On the premise of ensuring a flow guide effect, the curve section is used to guide the airflow generating a wall attachment effect, so that the airflow is prevented from generating a vortex at the air outlet to affect an air outlet effect of the mixed flow fan; and meanwhile, the straight line section is tangent to an inner housing to avoid the situation that a step structure is generated at the joint of the straight line section and the inner housing to affect the flow of the airflow, thereby further ensuring the air outlet effect of the mixed flow fan.
Disclosed are a magnetic bearing and a compressor. The magnetic bearing comprises a first axial iron core (101) and a radial iron core (201), wherein the first axial iron core (101) has a first accommodating space, in which an annular positioning boss (102) is provided; the annular positioning boss (102) has an axial positioning surface and a radial positioning surface; and a magnetic conductive ring (103) is provided in the first accommodating space, the magnetic conductive ring (103) can be connected to both the axial positioning surface and the radial positioning surface in a fitting manner to achieve positioning of the magnetic conductive ring (103) in both an axial direction and a radial direction of the first axial iron core (101), and the magnetic conductive ring (103) is sleeved on an outer circumferential wall of the radial iron core (201). In the magnetic bearing and the compressor, the positioning of the radial iron core is more accurate, so as to effectively avoid the problem of great positioning accuracy error of a radial iron core in the prior art due to association of the positioning with magnetic steel.
A fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), a cross groove structure (30), sliding blocks (40), and two flanges (50). The crankshaft (10) is provided with two eccentric portions (11); the crankshaft (10) and the cylinder sleeve (20) are eccentrically provided and an eccentric distance is fixed; the cross groove structure (30) is rotatably provided in the cylinder sleeve (20); two limiting channels (31) of the cross groove structure (30) are sequentially provided in an axial direction of the crankshaft (10), and an extending direction of each limiting channel (31) is perpendicular to the axial direction of the crankshaft (10); the two eccentric portions (11) correspondingly extend into two through holes (41) of two sliding blocks (40), and the two sliding blocks (40) are correspondingly slidably provided in the two limiting channels (31) and variable volume cavities are formed. The two flanges (50) are respectively provided at two axial ends of the cylinder sleeve (20), one of the two flanges (50) is provided with an air inlet channel (54), the cylinder sleeve (20) is provided with a radial air suction hole (21), and the air inlet channel (54) and the radial air suction hole (21) are respectively communicated with two variable volume cavities. Therefore, air suction reliability of the fluid machine is ensured, and air suction loss caused by insufficient air suction of the fluid machine is avoided.
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 18/34 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members
F04B 27/06 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
F04B 1/1136 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the inner ends of the cylinders with rotary cylinder blocks with a rotary cylinder with a single piston reciprocating within the cylinder
Provided are a fluid machine and a heat exchange device. The fluid machine comprises a crankshaft (10), a cylinder sleeve (20), a cross-groove structure (30), a sliding block (40), and two flanges (50), wherein the crankshaft (10) has two eccentric portions (11); the crankshaft (10) and the cylinder sleeve (20) are eccentrically arranged at a fixed eccentric distance; the cross-groove structure (30) is rotatably arranged in the cylinder sleeve (20), two limiting channels (31) of the cross-groove structure (30) are axially and sequentially arranged, and the limiting channels (31) extend perpendicular to an axial direction of the crankshaft (10); the two eccentric portions (11) correspondingly extend into two through holes (41) of the two sliding blocks (40), at least one of the flanges (50) is provided with an exhaust channel (51), and a side wall surface of the cylinder sleeve (20) is provided with two exhaust ports (22) axially arranged at an interval and both in communication with the exhaust channel (51); and the exhaust port (22) has a cross-sectional area of S1, and a variable-volume cavity (311) has a volume of V1, 750 ≦ V1/S1 ≦ 3300. The fluid machine has high energy efficiency and low noise, and operates stably.
A sweeping method for a floor sweeping device, and a floor sweeping robot. The sweeping method for a floor sweeping device comprises: obtaining a raster map (10) of an area to be swept; dividing a passable area in the raster map (10) into a plurality of candidate areas (20); screening the plurality of candidate areas (20); performing priority ranking on the screened candidate areas (20), such that the candidate areas (20) of different priorities correspond to different sweeping parameters; and sweeping the candidate areas (20) according to the priority ranking, wherein the sweeping parameters comprise at least one of a sweeping frequency, a sweeping time, cleaning agent adding information and a sweeping mode. The sweeping method effectively solves the problem in the art that the sweeping efficiency of the floor sweeping robot is relatively low.
A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers
100.
SILICON CARBIDE METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR AND MANUFACTURING METHOD OF SILICON CARBIDE METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR
Some embodiments of the present disclosure provide a silicon carbide metal oxide semiconductor field effect transistor and a manufacturing method. The transistor includes first and second cells which jointly include a drain electrode layer, an ohmic contact layer, a substrate layer, an epitaxial layer, an interlayer dielectric layer, and a source electrode layer, the first cell further includes a first deep well region, a second deep well region, a first shallow well region, a second shallow well region, a two first source region, a two second source region, a first gate oxide layer, and a first polysilicon gate, and the second cell further includes a third deep well region, a fourth deep well region, a third shallow well region, a fourth shallow well region, a second gate oxide layer, a third gate oxide layer, a second polysilicon gate, and a third polysilicon gate.
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate
H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
