Provided is an electrically operated valve 11 comprising: a valve body 13 having a valve chamber 14; a valve member 31 that has a flow path space 32 inside, and is rotationally driven in the valve chamber to switch a flow path of fluid; and a transmission mechanism including a drive shaft 41 that transmits a driving force for rotating the valve member to the valve member. The valve body includes: a first flow path hole 15 that communicates with the flow path space to allow the fluid to flow into the flow path space; a second flow path hole 16 of which the state of communication with the flow path space is changed depending on the position of rotational displacement of the valve member, and which communicates with the flow path space at a first rotational displacement position of the valve member to allow the fluid to flow out from the flow path space; and a third flow path hole 17 of which the state of communication with the flow path space is changed depending on the position of rotational displacement of the valve member, and which communicates with the flow path space at a second rotational displacement position of the valve member to allow the fluid to flow out from the flow path space. A rotation axis X of the valve member and a rotation axis Y of the drive shaft intersect with each other.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
2.
VALVE DEVICE, EXPANSION VALVE, METHOD FOR MANUFACTURING VALVE DEVICE, AND METHOD FOR MANUFACTURING EXPANSION VALVE
Provided are a valve device, an expansion valve, a method for manufacturing a valve device, and a method for manufacturing an expansion valve with which manufacturing costs can be reduced without increasing the number of manufacturing processes. A valve device of a valve main body includes a base surface portion which is a flat surface that is formed by subjecting one side surface of the valve main body to a prescribed cutting process or grinding process, and to which an object to be fixed can be attached, and an adjacent portion adjacent to at least a portion of an edge of the base surface portion, wherein the adjacent portion is not subjected to the prescribed cutting process or grinding process, and has a shape that does not project relative to the base surface portion in a normal line direction of the base surface portion. By having such a valve main body, the amount of material that is cut and discarded during processing is reduced, and since burrs are not formed between the base surface portion and the adjacent portion, a process to remove burrs is not required, and there is thus no increase in the number of processes.
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
This flow path switching valve has a valve unit comprising: a valve body having a first port and a second port formed in a valve chamber, and a third port formed on a bottom surface of the valve chamber; a first valve body disposed rotatably in the valve chamber, and in which a flow path is formed; a first flow path communicating with the first port; a second flow path provided along with the first flow path with the valve body interposed therebetween, and communicating with the second port; a branch part communicating with the third port and branching at least in two directions; a third flow path and a fourth flow path each connected to the branch part; and a second valve body disposed in the branch part and which rotates in conjunction with the first valve body. The communication state of the first port, the second port, and the third port is selectively switched through the first valve body, and the communication state of the third port, the third flow path, and the fourth flow path is switched by the second valve body.
F16K 11/056 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape en forme de sphère
F16K 11/07 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement à glissières cylindriques
The present invention provides a flow path switching valve comprising a plurality of valve units in each of which a connection state of a plurality of flow paths is changed by rotating a valve element provided in a valve chamber of a valve body, the flow path switching valve including: a gear shaft that rotates the valve element of one valve unit, a gear shaft that rotates the valve element of the other valve unit, a rotational drive unit for rotating the gear shafts, and a driving force distribution mechanism that distributes the rotational driving force of the rotational drive unit to the two gear shafts.
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
5.
STATOR UNIT, ELECTRIC VALVE, AND MANUFACTURING METHOD FOR STATOR UNIT
[Problem] To provide a stator unit and an electric valve by which it is possible to prevent electromagnetic waves emitted from a stator and to prevent a malfunction of an operation of an electronic component, and to provide a manufacturing method for the stator unit. [Solution] A stator unit 8 has a stator 80 and a housing 100 that is made of synthetic resin and that is molded integrally with the stator 80. Furthermore, the stator unit 8 has an electromagnetic-wave suppression film 90 arranged between the stator 80 and the housing 100.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 11/02 - Association structurelle de machines dynamo-électriques à des organes électriques ou à des dispositifs de blindage, de surveillance ou de protection pour la suppression des parasites d’origine électromagnétique
H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
This flow path switching valve comprises: a valve unit including a valve main body in which a first port and a second port through which a fluid flows in and out are formed on a wall surface forming a valve chamber, and a third port is formed on a bottom surface of the valve chamber, a valve body disposed rotatably in the valve chamber, and in which a flow path is formed, a first flow path communicating with the first port, a second flow path provided along with the first flow path with the valve main body interposed therebetween, and communicating with the second port, and a third flow path communicating with the third port and which is open on the side opposite to the third port; and a rotation drive part coupled to the valve unit and which rotates the valve body. To the first flow path and the second flow path of the valve unit, the first flow path and the second flow path of another valve unit can be respectively connected and coupled.
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
F16K 11/22 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par des organes de commande distincts chacun étant propre à une soupape, p.ex. conjugués pour former clapet à voies multiples
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
This flow path switching valve includes: a valve unit provided with a valve body which has a first inlet/outlet and a second inlet/outlet formed, on a wall surface constituting a valve chamber, so as to allow a fluid to flow in and out therethrough, and has a third inlet/outlet formed on the bottom surface of the valve chamber, a valve element which is rotatably disposed inside the valve chamber and which has formed therein a flow channel, a first flow channel which is in communication with the first inlet/outlet, a second flow channel which is arranged parallel with the first flow channel with the valve body therebetween and which is in communication with the second inlet/outlet, and a third flow channel which is in communication with the third inlet/outlet and which is open at a side opposite to the third inlet/outlet; and a rotary drive part that is connected to the valve unit and that rotates the valve element. At a side of the valve unit opposite to the rotary drive part, another valve unit can be overlaid and connected.
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
F16K 11/22 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par des organes de commande distincts chacun étant propre à une soupape, p.ex. conjugués pour former clapet à voies multiples
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
8.
MOTORIZED VALVE, MOTORIZED VALVE DEVICE, AND METHOD FOR ASSEMBLING MOTORIZED VALVE DEVICE
[Problem] To provide: a motorized valve and a motorized valve device that can be used across multiple types of systems; and an attachment method for a motorized valve. [Solution] A motorized valve (3) comprises a valve body assembly (5), a stator unit (6), and a nut member (7). The stator unit (6) is attached to the valve body assembly (5). The outer peripheral surface of a body member (10) of the valve body assembly (5) has provided thereto a male screw (11e). The male screw (11e) is screwed into a female screw (7e) provided on the inner peripheral surface of the nut member (7) and a female screw (201e) provided on the inner peripheral surface of an attachment hole (201) of a flow path block (2). The length of the male screw (11e) along an axial line (L) direction is greater than the length of the female screw (7e) along the axial line (L) direction.
[Problem] To provide a motorized valve control device and a motorized valve device that can more accurately detect a malfunction of a stepping motor of a motorized valve. [Solution] A motorized valve device (1) comprises a motorized valve (5) and a motorized valve control device (100). The motorized valve (5) has a stepping motor (66), and the stepping motor (66) has a magnet rotor (31), an A-phase stator (61), and a B-phase stator (62). The motorized valve control device (100) controls an A-phase current (Ia) which is supplied to an A-phase coil (61c) of the A-phase stator (61), and a B-phase current (Ib) which is supplied to a B-phase coil (62c) of the B-phase stator (62), by a PWM method. The motorized valve control device (100) detects occurrence of an abnormality in the A-phase coil (61c) or the B-phase coil (62c), on the basis of a comparison between an A-phase duty ratio (Da) related to the A-phase current (Ia) and a B-phase duty ratio (Db) related to the B-phase current (Ib).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02P 8/36 - Protection contre les défauts, p.ex. contre l'échauffement excessif ou le décrochage; Indication des défauts
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 51/00 - Autres détails non particuliers aux types de soupapes ou clapets ou autres appareils d'obturation
A combined valve includes a body block having multiple joints for letting fluid in and out, and a first four-way valve and second four-way valve provided inside the body block to selectively allow fluid flowing in from any one joint to flow out from any other joint. A shaft that operates a stem valve of the one first four-way valve is provided on one side of the body block, and a shaft that operates a stem valve of the other second four-way valve is provided on the side opposite to the one side of the body block.
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
F16K 11/20 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont plusieurs éléments de fermeture ne se déplacent pas comme un tout actionnés par des organes de commande distincts
11.
ELECTRIC VALVE CONTROL DEVICE AND ELECTRIC VALVE DEVICE
[Problem] To provide an electric valve control device and an electric valve device which can relatively easily detect that the rotation of a magnet rotor has been regulated. [Solution] This electric valve control device controls an electric valve. The electric valve has a first magnetic sensor 91 and a second magnetic sensor 92. Output signals of the first magnetic sensor 91 and second magnetic sensor 92 are binary signals. When the total number of a plurality of N-poles and a plurality of S-poles of the magnet rotor 31 is noted as n, a natural number is denoted as N, an angle between a line M1 connecting an axis line L and the first magnetic sensor 91 and a line M2 connecting an axis line L and the second magnetic sensor 92 is denoted as θ, the following equation (1) is satisfied. (1) θ=(360/n)×N＋(360/2n) The electric valve control device detects the regulation of rotation of the magnet rotor 31 on the basis of the output signals and expectation value information about the output signals.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
This electrically driven valve comprises: a valve main body 13 that has a main valve chamber 14 and a pilot valve chamber 22 inside, has an inflow port 15 and an outflow port 16 for a refrigerant, and has a main valve seat 17 formed at the end part of the outflow port on the main valve chamber side; a main valve body 18 that moves forward and backward with respect to the main valve seat to open and close the outflow port; a valve-opening spring 21 that biases the main valve body in the valve-opening direction; a pilot passage 19 passing through the main valve body and providing selective communication between the main valve chamber and the pilot valve chamber; a pressure equalizing path 20 that provides communication between the main valve chamber and the pilot valve chamber; a pilot valve seat 23 formed at the end part of the pilot passage on the pilot valve chamber side; a pilot valve body 24 that moves forward and backward with respect to the pilot valve seat to open and close the pilot passage; and an electrical driving device 41 that drives the pilot valve body. The outflow port is formed so as to be open to the side surface part of the main valve chamber. The valve-opening spring is provided such that the lower end of the valve-opening spring is located higher than the lower end of the inflow port.
[Problem] To provide a motor-operated valve control device and a motor-operated valve device that can suppress malfunction of a motor-operated valve at low temperatures. [Solution] A motor-operated valve control device (100) acquires a temperature (K) on the basis of a signal from a temperature sensor (126) that is arranged outside of a can (20) and transitions to a preparation mode when the temperature (K) is below a reference temperature (Kr). In the preparation mode, when a magnet rotor (31) does not rotate normally, the motor-operated valve control device (100) performs a heat generation operation to make a stator (60) generate heat until the magnet rotor (31) rotates normally. When the magnet rotor (31) has rotated normally, the motor-operated valve control device (100) transitions to a standby mode.
This drain pump comprises: a rotary blade; a bottom cover (cover); a housing that forms, together with the bottom cover, a pump chamber for accommodating the rotary blade, and that is coupled, through snap-fit, to the bottom cover in the axial direction X of the rotary blade; an annular O ring (seal component); and an accommodation part that is formed by the bottom cover and the housing outside of the pump chamber in the radial direction R of the rotary blade, and that accommodates the O ring, wherein the accommodation part has a conical inner surface, an outer peripheral surface, and a lower surface (pressing part) that press the O ring in the axial direction X and the radial direction R.
This flow path switching valve comprises: a valve body in which a valve chamber is formed; a valve member disposed in the valve chamber; an annular sheet member that is positioned between the valve member and the inlet/outlet of the valve body such that a side surface on the reverse side from the valve member side contacts a wall surface of the valve body, and the outer peripheral surface is separated from the valve body; an inclined seal surface which is formed on the sheet member, is inclined at a fixed angle θ relative to an axis, and is contacted by the outer peripheral surface of the valve member; an O-ring that is compressed and accommodated in an O-ring groove provided in the wall surface of the valve body; and a rotation driving unit that rotates the valve member, wherein the value of the angle θ is determined such that the pressing force between the valve member and sheet member at the minimum temperature during use and the pressing force between the valve body and the sheet member at the maximum temperature during use do not vary.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
[Problem] To provide an electric valve that makes it possible to omit a stopper provided to a magnet rotor and stop rotation of the magnet rotor when movement of a valve body is stopped. [Solution] An electric valve 1 has: a valve main body 10 having a valve port 15 and a valve seat 16 surrounding the valve port 15; a valve body 40 facing the valve port 15; a valve shaft 34; and a stepping motor 66. The valve shaft 34 has a male thread 34c formed therein. The valve main body 10 has formed therein a female thread 13c to which the male thread 34c is threaded. The male thread 34c and the female thread 13c constitute a feed screw mechanism 33. The valve shaft 34 is coaxially fixed to the magnet rotor 31 of the stepping motor 66. The lower end of the valve shaft 34 is connected with the valve body 40. The valve body 40 is moved toward the valve port 15 when the magnet rotor 31 rotates in a valve closing direction. Movement of the valve body 40 toward the valve port 15 is restricted when the valve body 40 is brought into contact with the valve seat 16.
Provided are a control device for a motor-operated valve, a motor-operated valve, and a motor-operated valve unit using the same capable of performing appropriate flow rate control by changing the control of a stepping motor according to the amount of hysteresis. The present invention comprises a valve body capable of moving in a direction toward or away from a valve seat, a stepping motor that operates by inputting a drive pulse, a drive mechanism that drives the valve body by using the drive force output from the stepping motor, a non-volatile storage unit that stores the amount of hysteresis, and a control unit that drives the stepping motor according to operation instruction information input from outside. When moving the valve body in a direction different from the last movement direction on the basis of the operation instruction information input from outside, the control unit inputs, to the stepping motor, a number of drive pulses equal to the effective number of pulses obtained by adding the number of pulses corresponding to the amount of hysteresis stored in the storage unit to the target number of pulses corresponding to the target movement amount of the valve body.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F25B 41/35 - Soupapes de détente l’organe de soupape étant actionné par des moyens électriques, p.ex. par des actionneurs piézo-électriques par des moteurs rotatifs, p.ex. par des moteurs pas à pas
18.
MOTOR-OPERATED VALVE AND METHOD FOR ACQUIRING VALVE BODY POSITION OF MOTOR-OPERATED VALVE
[Problem] To provide a motor-operated valve with which variation in the rear of a throttle flow path can be minimized and the desired flow rate characteristics can be obtained. [Solution] A valve body 40 of a motor-operated valve 1 has a control unit 45 having a single tapered shape. The valve body 40 is driven in a movement section between a closed position Pa and a fully open position Pz by the rotation of a stepping motor 66. When the valve body 40 is in the closed position Pa, a control surface 46, which is the outer peripheral surface of the control unit 45, is in contact with a valve seat 16. When the valve body 40 has moved from the closed position Pa and is in the movement section, a throttle flow path is formed between the valve seat 16 and the control surface 46. The movement section includes a first section between the closed position Pa and a first position, and a second section between the first position and a second position. A control device 80 makes the step angle when the valve body 40 is in the first section smaller than the step angle when the valve body 40 is in the second section.
Provided is an electromagnetic valve comprising: a valve main body in which an inflow opening and an outflow opening for fluid are formed and a main valve seat and a main valve chamber are formed between the inflow opening and the outflow opening; a main valve body which is arranged in the main valve chamber and can come in contact with and can separate from the main valve seat; a plunger which is arranged in the valve main body and moves the main valve body in a direction in which the main valve body comes in contact with and separates from the main valve seat; a solenoid which is formed by winding a coil for driving the plunger; a magnet which is mounted to the plunger; and a magnetic sensor which is provided to the valve main body and detects magnetic flux density of the magnet.
F16K 31/06 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un aimant
F16K 31/40 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide et dans lesquels il y a alimentation constante du moteur à fluide par le fluide provenant de la canalisation avec un organe actionné électriquement dans la décharge du moteur
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
The present invention performs calibration of the rotation range of a valve member. A flow path switching valve (10) comprises: a valve body (14) in which a valve chamber (12) is formed and that has a plurality of fluid inlet and outlet ports (24, 26, 28) formed in a wall surface forming the valve chamber (12); a valve member (16) that has a valve shaft (48), is rotatably disposed in the valve chamber (12), and is formed with a flow path (36); a sealing part (38) that is disposed to surround the peripheries of openings (36A, 36B) of the flow path (36) of the valve member (16), and seals between the inlet and outlet ports (24, 26, 28) and the valve member (16) in a state in which the openings (36A, 36B) and the inlet and outlet ports (24, 26, 28) face each other; and a rotary drive unit (18) that rotates the valve member (16) by means of the valve shaft (48) so as to selectively switch the communication state of the plurality of inlet and outlet ports through the flow path (36) of the valve member (16), and that is capable of detecting the angular position of the valve member (16). Stoppers (44, 46) that restrict further rotation of the valve member at at least one of the upper limit and lower limit of the rotation range of the valve disc are provided inside the valve body (14).
F16K 11/085 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix cylindrique
A flow path switching valve comprises: a valve body which has a valve chamber formed therein and which has inlet/outlet ports formed in an interior wall (wall surface) that forms the valve chamber; a valve element which is rotatably disposed within the valve chamber and which has formed therein a flow path having a plurality of openings that are provided to an outer peripheral surface facing the wall surface; a sealing part which is disposed to encircle the circumference of the openings of the flow path in the valve element and which provides sealing between the inlet/outlet ports and the valve element in a state the openings and the inlet/outlet ports are positioned to face each other; and a rotary drive unit which rotates the valve element via a valve shaft to allow the connection state of the inlet/outlet ports to be switched selectively through the flow path of the valve element and which can detect the angular position of the valve element. This flow path switching valve has a mode in which the openings of the valve element are sealed simultaneously by the wall surface and the flow of fluid in the flow path is brought to a halt.
F16K 11/085 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix cylindrique
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
22.
MOTORIZED VALVE CONTROL DEVICE, MOTORIZED VALVE DEVICE, AND METHOD FOR CONTROLLING MOTORIZED VALVE
[Problem] To provide a motorized valve control device capable of determining whether a rotor can rotate normally within an appropriate rotation range. [Solution] The motorized valve control device 90 (1) inputs a pulse P to a stepping motor 80 to cause a rotor 81 to rotate in a second direction, (2) when a motorized valve 5 enters a second direction rotation restricted state Sr2, inputs the pulse P to the stepping motor 80 to cause the rotor 81 to rotate in a first direction, (3) when the motorized valve 5 enters a first direction rotation restricted state Sr1 while rotating the rotor 81 in the first direction, acquires the number of pulses (input number Xi) input to the stepping motor 80 during the period from the second direction rotation restricted state Sr2 to the first direction rotation restricted state Sr1, (4) when the input number Xi is greater than or equal to a design number Xd and less than or equal to an upper limit number Xu, determines that the rotor 81 can rotate normally, and (5) when the input number Xi is less than the design number Xd or when the input number Xi is greater than the upper limit number Xu, determines that the rotor 81 cannot rotate normally.
A pump comprising: a pump chamber 13 having a suction port P11 and a plurality of discharge ports P21 and P22; an electric motor 41 capable of forward and reverse rotation; an impeller 21 provided in the pump chamber and driven by the electric motor; and a switching valve 31 that is rotated by the electric motor via the impeller and has a valve body 32 that opens and closes the discharge ports, wherein the valve body has a plurality of shielding wall portions that close the discharge ports and a plurality of opening portions that open the discharge ports, the shielding wall portions and the opening portions are arranged so as to surround the impeller and set alternately in array in a circumferential direction of the valve body so that the discharge ports can be opened or closed depending on the rotational position of the valve body, the discharge ports are formed on an inner peripheral surface 13a of the pump chamber along an outer peripheral surface of the valve body, and the pump includes a one-way rotation transmission mechanism 51 that is interposed between the impeller and the switching valve, transmits the rotational force in a second direction from the impeller to the switching valve but does not transmit the rotational force in a first direction from the impeller to the switching valve.
[Problem] To provide a motorized valve control device and a motorized valve device capable of suppressing noise by shortening the time required for the initialization operation of the motorized valve. [Solution] A motorized valve control device 90 (1) starts inputting a pulse P to a stepping motor 66 to rotate a rotor 41 in the first direction, (2) every time the pulse P is input to the stepping motor 66, acquires the rotation angle of the rotor 41 on the basis of a rotation angle signal Sa and acquires the position of the rotor 41 on the basis of a magnetic flux density signal Sm, and (3) when the change in the rotation angle of rotor 41 matches change pattern information J and the position of the rotor 41 coincides with a proximity position Rk or a position closer to a reference position Rx than the proximity position Rk, stops the input of the pulse P to the stepping motor 66. Furthermore, the change pattern information J includes a change in rotation angle indicating rotation in the second direction.
Provided is an expansion valve that makes it possible to further reduce weight and costs even when, for example, the same materials as those used in the prior art are used. The expansion valve comprises: a valve main body equipped with a valve seat within a valve chamber; a valve body that prevents the passage of a fluid as a result of being seated on the valve seat and allows the passage of the fluid as a result of being separated from the valve seat; an insertion section; and a flange protruding in a direction orthogonal to an axis with respect to the insertion section. The expansion valve also includes a valve body support connected to the valve body, a coil spring that has the insertion section inserted therein and biases the valve body toward the valve seat via the valve body support, and an anti-vibration member sandwiched between the flange and the coil spring. The anti-vibration member comprises a base section including an opening through which the insertion section passes, and a plurality of leg pieces extending from the base section and in contact with the inner wall of the valve chamber. At least one of the outer circumference of the insertion section and the inner circumference of the opening is non-circular in a cross section orthogonal to the axis of the valve body support, and the outer circumference of the insertion section and the inner circumference of the opening are in contact at three or more points along the circumferential direction.
F25B 41/335 - Soupapes de détente l’organe de soupape étant actionné par la pression du fluide, p.ex. par la pression du réfrigérant à travers des diaphragmes
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
This pump comprising: a pump chamber 14 having a suction port 15, a first discharge port 16 and a second discharge port 17; an impeller 18 that generates a rotating flow; and a switching valve 21 that has a first valve cover 23 and a second valve cover 24 and discharges fluid from the first discharge port or the second discharge port depending on the direction of the rotating flow, the switching valve being in a first switching state in which the first valve cover closes the first discharge port and the second valve cover opens the second discharge port when the rotating flow is in the first direction, or in a second switching state in which the second valve cover closes the second discharge port and the first valve cover opens the first discharge port when the rotating flow is in the second direction, wherein the switching valve has a first contact means 25 for coming into contact with the impeller and receiving a force from the impeller that causes return to the first switching state when the switching valve in the first switching state swings toward the second switching state, and a second contact means 26 for coming into contact with the impeller and receiving a force from the impeller that causes return to the second switching state when the switching valve in the second switching state swings toward the first switching state.
This flow path switch valve comprises: a valve body having inlet/outlet openings formed in a pair of a left first wall and a right first wall that oppose each other across a valve chamber formed inside the valve body; a ball-shaped valve body disposed inside the valve chamber; a ring-shaped sheet member that is disposed between the valve body and the inlet/outlet openings, and also between the left first wall and the right first wall of the valve chamber opposing an outer peripheral section; an O-ring that presses the sheet member against the valve body; a rotational drive unit that rotates the valve body; and an inclined sealing surface that is formed in the sheet member, that is inclined at a constant angle θ to an axial line, and with which the outer peripheral surface of the valve body is in contact. The value of the angle θ is set such that the compression rate of the O-ring at the minimum temperature and the compression rate of the O-ring at the maximum temperature do not change.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 11/08 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau
The present invention addresses the problem of ensuring valve performance and enabling easy arrangement of a valve body and a sealing part in a flow passage switching valve having a valve body in which four flow passage openings are formed in the same plane. In a flow passage switching valve (10), a valve body (16) and sealing parts (18) can be arranged in a valve chamber (12) from an opening (12U). On the outer surface of the valve body (16), a pair of planar sections (16U, 16L) are formed such that a portion (16L) which opposes a bottom plate (12E) constituting the valve chamber (12) and a portion (16U) positioned on the side opposite the abovementioned portion in the diameter direction of a spherical surface are parallel to each other. The outer dimension of the valve body in a direction different from a direction of a two-surface width (T), which is the minimum distance between the planar sections (16U, 16L), is greater than the two-surface width (T) and is equal to or less than the diameter of the spherical surface. The two-surface width (T) is less than a separation distance (K) between the opposing sealing parts, and equal to the outer dimension of the valve body in the direction of the two-surface width (T).
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
F16K 27/06 - Structures des logements; Matériaux utilisés à cet effet des robinets ou des vannes
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
According to the present invention, three flow path ports are each formed in respective side walls of a valve main body. Sealing parts disposed so as to surround the flow path ports seal spaces between the side walls and the outer surface of the valve body. The outer surface of the valve body, which rotates, is in contact with the entire circumference of at least one of the sealing parts.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 11/08 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau
According to the present invention, when a valve body is tilted by 90 [degrees] with respect to the use state so that the lower surface portion of the valve body faces a side wall of a main valve body, a gap into which a sealing portion can be inserted is formed between the side wall and the lower surface portion. The sealing portion is inserted into said gap. Then, the valve body is sequentially caused to face the other side walls.
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
F16K 27/06 - Structures des logements; Matériaux utilisés à cet effet des robinets ou des vannes
This flow path switch valve comprises a valve main body inside of which a valve chamber is formed and in which inlet/outlets for fluid are formed in a wall surface forming the valve chamber, a valve body which is rotatably disposed in the valve chamber and in which a flow path is formed, a sealing part which is disposed between the valve body and the inlet/outlet and which creates a seal between the valve body and the inlet/outlet, a rotation-driving unit that causes the valve body to rotate by means of a valve shaft so that the communication state of a plurality of the inlet/outlets is selectively switched through the flow path of the valve body and that can detect the angle position of the valve shaft, and a stopper that restricts further rotation of the valve shaft at the upper limit and/or the lower limit of the rotation range of the valve body.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 11/085 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix cylindrique
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
[Problem] To provide an electric valve that is capable of reducing variations in the number of valve-opening pulses. [Solution] An electric valve 1 having a plurality of positions (hereinafter referred to as "stator unit attachment positions"), on a stator unit 7, that attach to a valve body assembly 5A. When the step angle of a stepping motor 66 is denoted by θ, the number of excitation patterns of the stepping motor 66 is denoted by M, the number of the stator unit attachment positions is denoted by K, and an integer is denoted by U, the angle dα[j] around an axis between a jth (j = 1, 2, …, K-1) stator unit attachment position and a j+1th stator unit attachment position is a multiple of the step angle θ and satisfies expression (1) below. (1) dα[j] ≠ M×θ×U
[Problem] To provide an electric valve control device and an electric valve device with which any increase in the internal temperature of a motor driver can be minimized. [Solution] When a computer 80 of an electric valve control device 70 receives a valve opening degree change command including a target valve opening degree for an electric valve 5, the computer 80 acquires a target number, which is the number of pulses to be inputted to a motor driver 77 in order to set the valve opening degree of the electric valve 5 to the target valve opening degree. When it is assessed that the temperature surrounding the motor driver 77 is not high, the computer 80 continuously inputs the target number of pulses to the motor driver 77. When it is assessed that the surrounding temperature is high, the computer 80 continuously inputs a unit number of pulses at a time to the motor driver 77 until the number of pulses inputted to the motor driver 77 reaches the target number, and the computer 80 provides a pulse input pause period each time the unit number of pulses are inputted.
This electric valve comprises: a valve main body having a valve chamber communicating with a refrigerant inflow passage and a refrigerant outflow passage; a valve body that moves forward and backward in relation to a valve seat formed in the valve chamber, between a closed state of being seated on the valve seat and an open state of being separated from the valve seat, thereby changing the flow rate of the refrigerant; an electric motor 23 that drives the valve body; a control substrate on which electronic components for controlling the electric motor are mounted; a substrate-housing portion 43 capable of housing the control substrate in a sealed state; an external connection terminal 45 for establishing electrical connection with the exterior; and a connector portion 44 that supports the external connection terminal inside and has a sealed structure that is sealed by fitting with a mating connector. The electric valve also has a communication path 51 that allows communication between the substrate-housing portion and the connector portion, and the substrate-housing portion becomes sealed when the mating connector is fitted into the connector portion.
[Problem] To provide an electric valve control device and an electric valve device with which an electric valve can be returned from a lock state to a normal state. [Solution] An electric valve control device 70 has a computer for controlling a stepping motor of an electric valve 5. Upon detection of stepping out of the stepping motor during control of the stepping motor such that a rotor 41 rotates in a first direction so as to change the valve opening degree of the electric valve 5, the computer controls the stepping motor such that the rotor 41 rotates in a second direction, which is opposite to the first direction.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F25B 41/35 - Soupapes de détente l’organe de soupape étant actionné par des moyens électriques, p.ex. par des actionneurs piézo-électriques par des moteurs rotatifs, p.ex. par des moteurs pas à pas
Provided is a drainage pump that can inhibit the propagation of vibrations while being easy to attach without increasing the number of components. This drainage pump has a case accommodating a rotary blade and a motor that rotationally drives the rotary blade, wherein: the case has a plurality of legs protruding along the rotational axis direction of the rotary blade; the legs have a leg body fixed to a mounting part, and a plurality of plate-shaped parts connecting the leg body and the case.; and when viewed through a space between the plate-shaped parts, a first gap is formed between the case and the leg body.
A motor-operated valve comprises a valve body 12 having a valve chamber 13 communicating with a refrigerant inflow passage 16 and a refrigerant outflow passage 15, a valve element 17 that moves back and forth with respect to a valve seat 14 formed in the valve chamber to change the refrigerant flow rate, an electric motor 23 that drives the valve element, a board 46 that controls an electric motor, and a board accommodating portion including a case 43 that accommodates the board, wherein the board has a fixing hole for fixing the board in the case, the case has a supporting projection inserted into the fixing hole to support the board in the case, and the supporting projection is formed integrally with a case portion. It is preferable that the supporting projection have a stepped portion 57 and the board be sandwiched between the stepped portion and a pressing projection 61 provided on a back surface of a lid 47 that closes the case.
Provided are an electric valve control device and an electric valve device that are capable of suppressing an excess of the position of a rotor of a motor from a position corresponding to the maximum opening degree of an electric valve. An electric valve device (1) has an electric valve (5) and an electric valve control device (70). The electric valve (5) has a stepper motor (66). The electric valve control device (70) controls the electric valve (5). The electric valve control device (70) has current valve opening degree information indicating the current valve opening degree of the electric valve (5), and changes the valve opening degree of the electric valve (5) within a range from the minimum opening degree to the maximum opening degree on the basis of the current valve opening degree information. Upon detection of an abnormality in the electric valve (5), the electric valve control device (70) sets the maximum opening degree to the current valve opening degree information.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
An electric valve 11 comprising: a main valve body 12 having a valve chamber 13 that communicates with an inflow passage 15 for introducing a refrigerant and an outflow passage 16 for discharging the refrigerant; a valve body 17 that changes the flow rate of the refrigerant by advancing and retreating with respect to a valve seat 14 formed in the valve chamber between a closed state in which the valve body is seated on the valve seat and an open state in which the valve body is apart from the valve seat; and an electric motor 45 that drives the valve body. The electric motor has: a stator 46 including a coil 49 that is supplied with a current to generate a magnetic force; and a magnet rotor 36 that is disposed on the inner side of the stator and rotates by receiving the magnetic force generated by the coil. The electric valve further comprises a magnetic sensor 62 that detects the magnetic force of the magnet rotor. In the electric valve, a magnetic shield member (made from, for example, a soft magnetic material) 61 is provided so as to be interposed between the magnetic sensor and the coil.
[Problem] To provide a valve device capable of suppressing leakage of a refrigerant, a decrease in cooling efficiency, and noise caused by a flow of the refrigerant. [Solution] A valve device 5 is used in an air conditioning apparatus 1. The valve device 5 has: one valve body 100 having a plurality of refrigerant passages; and a plurality of valve units mounted to the valve body 100. The plurality of refrigerant passages include: a high-temperature refrigerant passage in which a high-temperature refrigerant flows; an intermediate-temperature refrigerant passage in which an intermediate-temperature refrigerant, the temperature of which is lower than that of the high-temperature refrigerant, flows; and a low-temperature refrigerant passage in which a low-temperature refrigerant, the temperature of which is lower than that of the intermediate-temperature refrigerant, flows.
[Problem] To provide: a motorized valve device and a motorized valve control device that can shorten the time taken up by the action of initializing a motorized valve to curb any noise; and a method for controlling the motorized valve [Solution] A motorized valve control device 70 supplies a drive current to a stator 60 to cause a rotor 41 to rotate in the first direction. The motorized valve control device 70 acquires a voltage produced in the stator 60 due to the rotation of the rotor 41. The motorized valve control device 70 determines whether a motorized valve 5 is in a regulated rotation state in which a stopper mechanism 49 regulates rotation of the rotor 41 in the first direction on the basis of at least one from among the area of a voltage waveform, the amplitude of waves periodically observed in the waveform of the voltage, and the periodic appearance of new waves different from the waves periodically observed in the waveform of the voltage.
[Problem] To provide an electric valve control device, an electric valve device, and a method for controlling an electric valve which allow reduction in time required for the initialization operation of an electric valve and suppression of noise. [Solution] An electric valve control device 70 inputs a pulse to a stepper motor 66 to rotate a rotor 41 in a first direction. The electric valve control device 70 acquires a voltage generated in a stator 60 by the rotation of the rotor 41. The electric valve control device 70 then determines, on the basis of the degree of difference between the waveform of the voltage and a voltage reference waveform, whether or not an electric valve 5 is in a first rotation-regulated state in which the rotation of the rotor 41 in the first direction is regulated.
Provided is an electric valve which enables employment of a large valve diameter while ensuring durability of the electric valve. An electric valve (1) comprises a main valve body (10) having a valve port (14), a valve body (40) facing the valve port (14), a rotor (51) rotatable with respect to the main valve body (10), and a drive shaft (70) to which the rotation of the rotor (51) is transmitted. When the rotation of the rotor (51) is transmitted to the drive shaft (70), the drive shaft (70) moves downward or upward. The drive shaft (70) pushes the valve body (40) when the drive shaft (70) moves downward and pulls the valve body (40) when the drive shaft (70) moves upward and can rotate relatively with respect to the valve body (40).
A pressure regulating valve (11) comprising: a valve main body (12) having a valve chamber (13) that communicates with a refrigerant inflow passage (14) and a refrigerant outflow passage (15); a valve body (17) that changes the flow rate of a refrigerant by advancing to and retreating from a valve seat (16) formed in the valve chamber (13) between a closed state of being seated on the valve seat (16) and an open state of being spaced apart from the valve seat (16); a pressure-sensitive member (21) which biases the valve body (17) toward the valve seat (16) and which expands and contracts according to a pressure received by the valve body (17) from the refrigerant flowing in from the inflow passage (14) to thereby allow the advancement and retreat of the valve body (17); an adjustment means (24) for adjusting a biasing force applied by the pressure-sensitive member (21) to the valve body (17); and an actuator (such as stepper motor) (40) that drives the adjustment means (24). It is preferred for the adjustment means (24) to comprise a stopper member (29) that can stop the movement of an adjustment member caused by the actuator (40) and can serve as a start point for setting the biasing force.
Provided is an accumulator with excellent ease of assembly and capable of ensuring the functionality of a refrigerating cycle even when subjected to vibration. This accumulator comprises: a body; a pipe disposed inside the body; a hook portion that extends from the outer periphery of the pipe; and a desiccant container equipped with two bag portions that contain a desiccant and a connection portion that connects the bag portions to each other. The desiccant container is mounted by hooking the connection portion on the hook portion.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
Provided is an accumulator which has exceptional assembly properties and with which it is possible to ensure the function of a refrigeration cycle even when vibration is applied. This accumulator has a body, a pipe that is arranged inside the body and eccentrically with respect to the body, a retaining member installed between the pipe and the body, and a bag for accommodating a desiccant, the bag being retained, at the position at which the spacing between the inner peripheral surface of the body and the outer peripheral surface of the pipe is greatest, due to being in contact with the body and the retaining member.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
Provided is an accumulator capable of preventing flowing-out of a fluorescent source to the outside even while being able to efficiently conduct elution of a fluorescent agent. This accumulator comprises: a body; a pipe disposed inside the body; and a strainer fitted to the lower end of the pipe. A wafer holding part for holding a wafer impregnated with a fluorescent agent is formed in the outer circumference of the strainer.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
Provided is a small-sized valve device that can suppress refrigerant leakage. A valve device (5) has a valve module (10) and a receiver drier (20). The valve module (10) has one valve main body (100) having a plurality of refrigerant passages and a plurality of valve units mounted to the valve main body (100). The receiver drier (20) has a cylindrical-shaped receiver drier main body (210) that can store refrigerant and a lid body (220) joined to the upper end portion of the receiver drier main body (210). Further, the lid body (220) is disposed in contact with the valve main body (100).
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
F25B 41/20 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
F25B 41/35 - Soupapes de détente l’organe de soupape étant actionné par des moyens électriques, p.ex. par des actionneurs piézo-électriques par des moteurs rotatifs, p.ex. par des moteurs pas à pas
[Problem] To provide an electric valve capable of obtaining a desired flow rate characteristic without depending on the shape of a valve body. [Solution] A control device 200 of an electric valve 1 stores pulse number information relating to pulse numbers sequentially assigned to positions from a closed position to a fully-opened position of a valve body 40 and step angle information relating to step angles that correspond to the pulse numbers, respectively. The control device 200 receives, from a control unit 400, a valve body movement command relating to a movement target position of the valve body 40. The control device 200 acquires the pulse numbers assigned to positions from the current position to the movement target position of the valve body 40. Then, the control device 200 rotates a stepping motor to a step angle corresponding to each of the pulse numbers in the order of the pulse numbers assigned from the current position to the movement target position of the valve body.
The present invention provides an electric valve that, while being compact, makes it possible to drive a valve body at a high speed reducing ratio. An electric valve according to the present invention comprises: an output shaft for driving a valve body; a valve body part including a valve chamber for accommodating the valve body; a motor including a stator and a rotor; and deceleration mechanisms for reducing the rotational speed of the rotor and transmitting the reduced rotational speed to the output shaft, wherein the deceleration mechanisms are connected in series and have a plurality of planetary gear reduction mechanisms including at least one paradox planetary gear reduction mechanism.
[Problem] To provide an electric valve that has a small vertical dimension and is capable of accurately detecting the rotation angle of a magnet rotor. [Solution] The electric valve (1) has a permanent magnet (45) that is disposed coaxially with a magnet rotor (41) inside of a can (30). The permanent magnet (45) has a circular outer shape, and rotates with the magnet rotor (41). One N pole is disposed in a first section (45n) and one S pole is disposed in a second section (45s), said sections being demarcated by the diameter of the permanent magnet (45). The magnetization direction of the permanent magnet (45) is orthogonal to the axis (L). An angle sensor (96) that detects the rotation angle of the permanent magnet (45) is aligned with the can (30) in a direction orthogonal to the axis (L).
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 21/14 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
Provided is a motorized valve that has a small height and can accurately detect the rotational angle of a magnet rotor. A magnet rotor (41A) of a motorized valve (1A) has as a unit a first magnetic pole section (41a), a magnetic buffer section (41b), and a second magnetic pole section (41c), which are connected in sequence along the rotational shaft of the magnet rotor. In the first magnetic pole section (41a), disposed are a plurality of N poles and a plurality of S poles that run parallel in alternation circumferentially. In the second magnetic pole section (41c), disposed are a single N pole and a single S pole that run parallel in alternation circumferentially. A stator unit (80) has an angle sensor (96) for detecting the rotational angle of the second magnetic pole section (41c). The material that constitutes the first magnetic pole section (41a) differs from the material that constitutes the second magnetic pole section (41c).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 21/14 - Moteurs synchrones à aimants permanents; Génératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
53.
STATOR UNIT, ELECTRIC VALVE, AND MANUFACTURING METHOD FOR STATOR UNIT
[Problem] To provide a stator unit and an electric valve by which it is possible to mitigate the entry of moisture into the internal space of a yoke as well as mitigate disconnections in a coil, and to provide a manufacturing method for the stator unit. [Solution] A stator unit 80 has an A-phase yoke 81A, a B-phase yoke 81B, a first resin part 85-1, and a second resin part 85-2. The A-phase yoke 81A and the B-phase yoke 81B have a plurality of pole teeth. The first resin part 85-1 includes an A-phase yoke filing section 86A present in the internal space of the A-phase yoke 81A, and a B-phase yoke filling section 86B present in the internal space of the B-phase yoke 81B. The second resin part 85-2 includes a seal section 89 present in a space between the plurality of pole teeth. An A-phase bobbin 82A partitions the A-phase yoke filling section 86A from the seal section 89, and a B-phase bobbin 82B partitions the B-phase yoke filling section 86B from the seal section 89.
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
H02K 15/12 - Imprégnation, chauffage ou séchage des bobinages, des stators, des rotors ou des machines
H02K 37/14 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p.ex. moteurs pas à pas du type à aimant permanent avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
A valve device 11 comprising: a valve main body 12 having a valve chamber 13 in an interior thereof; a valve body 21 that has flow path space 22 in an interior thereof and that is rotationally driven in the valve chamber and changes a flow quantity of a fluid; a first flow path hole 14 that is formed in the valve main body and that communicates with the flow path space and allows the passage of the fluid; a second flow path hole 15 that is formed in the valve main body, whose communication state with the flow path space is changed via the rotational displacement position of the valve body, and that allows the passage of the fluid when communicating with the flow path space; and a transmission mechanism including a valve body driving shaft 31 that transmits, to the valve body, driving force for rotating the valve body. The rotation axis of the valve body and the rotation axis of the valve body driving shaft are orthogonal with each other.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 31/53 - Moyens mécaniques d'actionnement à engrenage
[Problem] To provide a valve device and an air conditioning device with which leakage of a refrigerant can be suppressed and the number of components can be reduced. [Solution] A valve device 10 has one valve body 100 having a plurality of refrigerant passages, and a plurality of valve units mounted to the valve body 100. The plurality of refrigerant passages include an entrance passage 110 connected to an entrance opening 171 in a front surface 101 of the valve body 100, an exit passage 120 connected to an exit opening 172 in a rear surface 102 of the valve body 100, a refrigerant expansion passage 130 connecting the entrance passage 110 and the exit passage 120, and a bypass passage 140 connecting the entrance passage 110 and the exit passage 120. The plurality of valve units include an expansion valve unit 200 capable of changing the passage area of the refrigerant expansion passage 130, a first opening/closing valve unit 300 capable of opening and closing the refrigerant expansion passage 130, and a second opening/closing valve unit 400 capable of opening and closing the bypass passage 140.
F25B 41/335 - Soupapes de détente l’organe de soupape étant actionné par la pression du fluide, p.ex. par la pression du réfrigérant à travers des diaphragmes
This electric valve includes: a motor; a power transmission mechanism which converts rotational motion produced by the motor into axial direction motion of a valve body; a housing accommodating the motor and at least a portion of the power transmission mechanism; and a control substrate which is provided inside the housing, processes communication with a control device connected to a network, and controls the motor, wherein a non-pattern area where a pattern is not formed is continuously provided from an outer edge of the control substrate to a cut-out (interference avoidance part) for avoiding interface with a pin (other component).
The purpose of the present invention is to increase noise performance of an electric valve having a communication function. An electric valve (10) comprising: a motor (12); a power transmission mechanism (14) for converting rotary motion generated by the motor (12) into the axial motion of a valve body; a housing (16) that receives the motor and at least a part of the power transmission mechanism (14); an external connector (18) which is provided to the housing (16) and which enables power supply to the motor (12) and communication with a control device connected through a network; and a control board (41, 42, 43) which is provided inside the housing (16), which processes the communication, and controls the motor (12), and in which a connection position to an external-connector-side terminal (18B) and a connection position to a motor-side terminal (12B) are located on the opposite sides to each other with respect to the axis (L) of the motor (12).
Provided is a valve device assembly that makes it possible to suppress heat exchange between valve devices. The valve device assembly (5) includes a high pressure-side valve device (10) and a low pressure-side valve device (20). Each of the high pressure-side valve device (10) and the low pressure-side valve device (20) includes: one valve body having a plurality of refrigerant passages; and a plurality of valve units mounted to the valve body. A high pressure-side valve body (100) of the high pressure-side valve device (10) and a low pressure-side valve body (200) of the low pressure-side valve device (20) are arranged separated from each other.
[Problem] To provide: a valve device which can suppress leakage of a refrigerant and with which the number of components can be reduced; and an air conditioning device having this valve device. [Solution] A valve device 10 of an air conditioning device 1 has a valve main body 100. The valve main body 100 has: a high pressure-side main refrigerant passage 110; and a first high pressure-side branched refrigerant passage 111 and a second high pressure-side branched refrigerant passage 112 which are connected to the high pressure-side main refrigerant passage 110. The valve device 10 has: a high pressure-side flow rate adjusting valve unit 200 which can modify the passage area of the first high pressure-side branched refrigerant passage 111; and a high pressure-side open/close valve unit 300 which can open/close the second high pressure-side branched refrigerant passage 112.
[Problem] To provide a valve device and a manufacturing method therefor, with which the shape of a plurality of refrigerant passages formed in one valve body can be simplified. [Solution] A high-pressure-side valve body 100 of a high-pressure-side valve device 10 has a high-pressure-side main refrigerant passage 110, a first high-pressure-side branching refrigerant passage 310, and a second high-pressure-side branching refrigerant passage 410. The high-pressure-side main refrigerant passage 110 has a columnar shape extending in a straight line from a main surface 101 toward a rear surface 102 of the high-pressure-side valve body 100. Part of a columnar first high-pressure-side main valve chamber 311 of the first high-pressure-side branching refrigerant passage 310 overlaps the high-pressure-side main refrigerant passage 110. Part of a columnar second high-pressure-side main valve chamber 411 of the second high-pressure-side branching refrigerant passage 410 overlaps the high-pressure-side main refrigerant passage 110.
Provided is a flow rate control valve that prevents foreign matter from being jammed therein and that can appropriately control a flow rate. The flow rate control valve (1) comprises: a valve body (31) in which a valve seat (31e) is provided; a deceleration part (20) that decelerates and transmits the rotation of a motor to a rotating body (26); a conversion mechanism that moves a moving body in an axial direction according to the rotational movement of the rotating body; and a valve disc (33) that moves according to the movement in the axial direction of the moving body, and moves toward or away from the valve seat. A first engagement part (26b) provided on the rotating body and a second engagement part (29) provided on the valve body move toward or away from each other according to the rotation of the rotating body. After the valve disc is seated on the valve seat, the first engagement part is brought into contact with the second engagement part, and the rotation of the rotating body is stopped.
Provided is a compact electric valve in which a magnetic sensor can be disposed near a can. This electric valve (1) has a stator unit (50) having an inner space (74) in which a can (20) is disposed. The stator unit (50) has a main substrate (90) disposed so as to be parallel to the vertical direction, a sub-substrate (100) disposed at a right angle to the main substrate (90), and a magnetic sensor (110) provided on the sub-substrate (100). A housing (70) has a sub-substrate space (75) disposed adjacent to the inner space (74). A first end (100a) of the sub-substrate (100) is connected to the main substrate (90) via a substrate terminal (101). A second end (100b) of the sub-substrate (100) is disposed in the vicinity of the inner space (74) in the sub-substrate space (75). The magnetic sensor (110) is disposed closer to the inner space (74) than the substrate terminal (101).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
Provided is a compact electric valve in which a magnetic sensor can be disposed close to a can. This electric valve (1) has a stator unit (50) having an inside space (74) in which a can (20) is disposed. The stator unit (50) has a main board (90) disposed so as to be parallel to the vertical direction, a sub board (100) disposed at a right angle to the main board (90), and a magnetic sensor (110) provided to the sub board (100). A housing (70) has a sub board space (75) disposed so as to be adjacent to the inside space (74). A first end (100a) of the sub board (100) is connected to the main board (90) with a sheet-shaped flexible connector (104) therebetween. A second end (100b) of the sub board (100) is disposed in the sub board space (75) in proximity to the inside space (74). The magnetic sensor (110) is disposed closer to the inside space (74) than to the connection site of the flexible connector (104) on the sub board (100).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 5/22 - Parties auxiliaires des enveloppes non couvertes par les groupes , p.ex. façonnées pour former des boîtes à connexions ou à bornes
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
H02K 11/33 - Circuits d’entraînement, p.ex. circuits électroniques de puissance
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
[Problem] To provide an electrically driven valve that can effectively suppress the collision noise of a plunger without a change in performance. [Solution] A solenoid valve 1 wherein a cushioning member 50 made of an elastically deformable synthetic resin is disposed in an internal space 33b of a plunger 33. When the plunger 33 is separated from an upper end wall part 32b of a case 32, the upper end 50a of the cushioning member 50 protrudes from the internal space 33b toward the upper end wall part 32b. When the plunger 33 moves toward the upper end wall part 32b, the upper end 50a of the cushioning member 50 contacts the upper end wall part 32b and is pushed into the internal space 33b, and the plunger 33 contacts the upper end wall part 32b.
[Problem] To provide a differential pressure valve capable of inhibiting diaphragm damage caused by foreign matter, and a valve device having the same. [Solution] A valve body (10) of a solenoid valve (1), the valve body (10) having: a main valve chamber (12); a first outflow port (14) connected to the main valve chamber (12) via a main valve seat (17); a differential pressure valve chamber (13) connected to the main valve chamber (12) via a branch passage (18); and a second outflow port (15) connected to the differential pressure valve chamber (13) via a differential pressure valve seat (20). The solenoid valve (1) has: a synthetic resin diaphragm (51) that partitions the first outflow port (14) and the differential pressure valve chamber (13) in the valve body (10); and an annularly-shaped retaining member (54) that is fixed to the valve body (10). The periphery (51b) of the diaphragm (51) has an annularly-shaped synthetic resin protective sheet (52) that is arranged so as to overlap the surface thereof on the retaining member (54)-side. The periphery (51b) of the diaphragm (51) and protective sheet (52) are retained between the valve body (10) and the retaining member (54).
F16K 17/30 - Soupapes ou clapets limiteurs de débit fonctionnant par différence de pression entre deux points de l'écoulement et agissant directement sur l'élément d'obturation dans un sens uniquement sous l'action d'un ressort
F16K 31/06 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un aimant
F25B 41/20 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
[Problem] To provide: an electric valve capable of reducing steps for fixing a housing that accommodates a stator to a valve main body; and an assembly method for the electric valve. [Solution] An electric valve (1) comprises: a valve main body (10) having a main body portion (11); a cylindrical stator (60); a cylindrical can (28) joined to the valve main body (10) and coaxially arranged with and inside the stator (60); and a housing (70) that accommodates the stator (60). The main body portion (11) has a retention groove (21). The housing (70) has a mounting plate (82) arranged inside the retention groove (21). The retention groove (21) has an opening (21k) at an end portion on the housing (70) side. The mounting plate (82) is engaged with the main body portion (11) so that the movement of the mounting plate (82) toward the opening (21k) is restricted.
Provided is a pilot-type electrical drive valve with which it is possible to effectively suppress noise generated when the valve is open. The pilot-type electric drive valve (1) has: a valve body (10) provided with a valve chamber (CA) that communicates with an inflow opening (12d) and an outflow opening (13a); a pilot valve body (35) that can move relative to the valve body (10); a main valve body (15) that can move relative to the valve body (10) and is seated on or separated from a valve seat (14) inside the valve chamber (CA); and an auxiliary valve body (16) in which the pilot valve body (35) is positioned so as to contact or separate from the auxiliary valve body (16), the auxiliary valve body (16) being able to move relative to the main valve body (15). A back-pressure chamber (CD) that contains a fluid is formed between the pilot valve body (35) and the auxiliary valve body (16), and a pressure-equalization chamber (CB) that contains the fluid is formed between the main valve body (15) and the auxiliary valve body (16).
F16K 31/06 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un aimant
F16K 31/40 - Moyens de fonctionnement; Dispositifs de retour à la position de repos actionnés par un fluide et dans lesquels il y a alimentation constante du moteur à fluide par le fluide provenant de la canalisation avec un organe actionné électriquement dans la décharge du moteur
[Problem] To provide a stator unit and an electric valve in which the occurrence of a weld line can be suppressed. [Solution] A stator unit (50) of an electric valve (1) has a stator (60), a housing (70), and a case (80). The housing (70) integrally has a peripheral wall portion (71), an upper wall portion (72) continuously connected to the peripheral wall portion (71), a dome portion (73) projecting upward from the upper wall portion (72), and a square cylindrical connecting portion (75) extending in a lateral direction. The connecting portion (75) has an end portion (76) and a top plate portion (77). The end portion (76) projects from the peripheral wall portion (71) in the lateral direction and is connected with the case (80). The top plate portion (77) has a flat plate shape and projects upward from the upper wall portion (72). There is a projected rim portion (78) in the central portion of the upper surface (77a) of the top plate portion (77) in the width direction, said projected rim portion (78) extending from the dome portion (73) to the end portion (76).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 5/12 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction spécialement adaptées à un fonctionnement dans un liquide ou dans un gaz
[Problem] To provide an electric valve demonstrating high durability and low power consumption. [Solution] An electric valve (1) includes: a main valve body (10) having a valve chamber (14) and a valve port (13a); a valve body (30) for opening/closing the valve port (13a); and a support member (20) supporting the valve body (30) so that the valve body (30) can move backward and forward relative to the valve port (13a). The electric valve (1) includes: a drive shaft (25) having a male screw portion (26); a rolling bearing (23) rotatably supporting the drive shaft (25); a planetary gear mechanism (50) connected to the drive shaft (25); and a female screw body (32) fixed to the valve body (30). The female screw body (32) is threaded with the male screw portion (26). The support member (20) supports the female screw body (32) so as to regulate rotation about an axis line (L) and allow movement in the axis line (L) direction.
[Problem] To provide a drain pump which can effectively reduce noise. [Solution] This drain pump (1) has a motor case (40) which accommodates a motor (30). The motor case (40) has: a bottom wall part (51); a cylindrical inner wall part (52), the lower end of which is connected to the bottom wall part (51); outer wall parts (54), (55) which are circular arcs in a plan view, and the lower ends of which are connected to the bottom wall part (51); and a motor support part (56) connected to an upper end of the inner wall part (52). The outer wall parts (54), (55) are disposed to be spaced apart from the inner wall part (52), the motor support part (56), and the motor (30).
[Problem] To provide a drainage pump with which it is possible to reduce the amount of drain water remaining in a drain pan. [Solution] A drainage pump (1) includes a housing (10), a rotating blade (20) accommodated in the housing (10), and a motor (30) having a drive shaft (32) connected to the rotating blade (20). The housing (10) has a cylindrical intake pipe (12) which extends in the vertical direction. Furthermore, a downward facing intake port (12a), and an annular concave surface (12b) surrounding the intake port (12a) are provided in a lower end (12c) of the intake pipe (12).
This drain water pump includes: a motor; and a pump unit provided with a housing, a rotating blade, and a cover. The housing is open at an upper section thereof and is provided with a suction port on a lower end section thereof and a discharge port on a side section thereof. The rotating blade is coupled to the motor. The cover has a through hole in a center section thereof and is attached to an upper end section of the housing. The housing and the cover define a pump chamber. The discharge port has a discharge port inlet that opens through an inner peripheral surface of the pump chamber so as to straddle a joint region where an inner peripheral surface formed by the housing and an inner peripheral surface formed by the cover are joined. A corner section of the discharge port inlet is chamfered, the corner section being positioned at a boundary between the inner peripheral surface of the housing and an inner surface of the discharge port.
A drainage pump having a motor, and a pump main body provided with: a housing, an upper part of which is open and a lower end portion of which is provided with a suction opening, and a side portion of which is provided with a discharge opening for connecting to a drain pipe; rotary vanes coupled to the motor; and a cover in the center of which there is a through-hole, and which is attached to an upper end portion of the housing. A pump chamber is defined by the housing and the cover. A protruding part that prevents return water from the drain pipe from flowing into the discharge opening is provided in the discharge opening, at an end portion of the discharge opening.
[Problem] To provide an electric valve which can reliably detect the magnetism of a magnet rotor with a magnetic sensor mounted on a substrate. [Solution] This electric valve (1) has magnetic transmission members (36a), (36b) disposed between a can (30) and magnetic sensors (35a), (35b) mounted on a substrate (85). On the outer peripheral surface (41a) of a magnet rotor (41) disposed on the inner side of the can (30), a plurality of N poles and a plurality of S poles extending in the rotational axis direction of the magnet rotor (41) are provided so as to be arranged side-by-side in the circumferential direction. Can-side ends (36a1), (36b1) of the magnetic transmission members (36a), (36b) are disposed so as to radially face the magnet rotor (41) through the can (30).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
H02K 11/215 - Dispositifs utilisant un effet magnétique, p.ex. des éléments à effet Hall ou magnéto-résistifs
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
[Problem] To provide an electric-operated valve which is capable of reliably detecting magnetic flux generated from a magnet rotor by means of a configuration that uses a relatively small number of components. [Solution] This electric-operated valve (1) has a magnet rotor (41) disposed inside a can (30). On an outer circumferential surface (41a) of the magnet rotor (41), a plurality of N-poles and S-poles are provided side by side in the circumferential direction. Magnetic sensors (35a), (35b) are disposed on the outer circumferential surface (30a) of the can (30) so as to face the magnet rotor (41) in the radial direction across the can (30). Further, when viewed from the direction of rotational axis, the magnetic sensor (35a) is disposed on a straight line (F1) that passes the rotational axis of the magnet rotor (41) and the center of one downward-facing pole tooth (63a) among multiple pole teeth of an upper stator (61).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
F16K 37/00 - Moyens particuliers portés par ou sur les soupapes ou autres dispositifs d'obturation pour repérer ou enregistrer leur fonctionnement ou pour permettre de donner l'alarme
Provided are: a power element that ensure conveyance efficiency of a refrigerant and that can suppress local deformation and the like of a diaphragm; and an expansion valve using the power element. A power element (8) has: a diaphragm (83); an upper lid member (82) that overlaps one surface near the outer circumference of the diaphragm (83) and that forms a pressure operation chamber (PO) between the upper lid member and the diaphragm (83); a reception member (86) that overlaps the other surface near the outer circumference of the diaphragm (83) and that forms a refrigerant inflow chamber (LS) between the reception member and the diaphragm (83); a stopper member (84) that is housed in the refrigerant inflow chamber (LS) and that abuts against the diaphragm (83). The sheet thickness in a center part (83b) of the diaphragm (83) is greater than the sheet thickness near a supporting point of the diaphragm (83).
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
F25B 41/335 - Soupapes de détente l’organe de soupape étant actionné par la pression du fluide, p.ex. par la pression du réfrigérant à travers des diaphragmes
Provided are: a power element that can suppress local deformation of a diaphragm while ensuring the conveyance efficiency of a refrigerant; and an expansion valve using the power element. The power element (8) is characterized by having: a diaphragm (83); an upper lid member (82) that overlaps one surface in the vicinity of the outer circumference of the diaphragm (83) and forms a pressure operating chamber (PO) between the upper lid member (82) and the diaphragm (83); a reception member (86) overlaps on the other surface in the vicinity of the outer circumference of the diaphragm (83) and forms a refrigerant inflow chamber (LS) between the reception member (86) and the diaphragm (83); and a stopper member (84) that is accommodated in the refrigerant inflow chamber (LS) and abuts the diaphragm (83), wherein the diaphragm (83) is displaced from a neutral position within a range of positions displaced from the neutral position to the upper lid member (82) side.
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
F25B 41/335 - Soupapes de détente l’organe de soupape étant actionné par la pression du fluide, p.ex. par la pression du réfrigérant à travers des diaphragmes
Provided are: a power element that can obtain intended temperature/flow rate characteristics despite a low cost; and an expansion valve using the power element. A power element (8) has: a diaphragm (83); an upper lid member (82) that is joined to one side of an outer circumferential part (83a) of the diaphragm (83) and that forms a pressure operation chamber (PO) between the upper lid member and the diaphragm (83); an annular supporting point adjustment member (85) that is joined to the other side of the outer circumferential part (83a) of the diaphragm (83); a reception member that is joined to the supporting point adjustment member (85) and that forms a refrigerant inflow chamber (LS) between the reception member and the diaphragm (83); and a stopper member (84) that is housed in the refrigerant inflow chamber (LS). The diaphragm (83) can abut against a supporting point of the supporting point adjustment member (85).
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
F25B 41/335 - Soupapes de détente l’organe de soupape étant actionné par la pression du fluide, p.ex. par la pression du réfrigérant à travers des diaphragmes
[Problem] To provide a flow path switch valve capable of effectively controlling the displacement between a case body and a lid that are attached by snap fits. [Solution] A flow path switch valve (1) includes a gear case body (52A), a lid (52B), and a plurality of snap fits (90). The plurality of snap fits (90) attach the lid (52B) to the gear case body (52A). The gear case body (52A) includes a plurality of positioning holes (58). The lid (52B) includes a plurality of posts (59) to be inserted into the plurality of positioning holes (58). The posts (59) are formed such that when attaching the lid (52B) to the gear case body (52A), the tips of the posts (59) are inserted into the respective positioning holes (58) before claw parts (91) of the snap fits (90) are hooked on claw receiving parts (92).
[Problem] To provide a compact and inexpensive electric valve in which corrosion and rust due to infiltration of moisture can be suppressed. [Solution] In an electric valve 1, a recessed groove 25 is formed in an annular shape by an upper surface 11a of a body section 11 of a valve body 10, a cylindrical section 12 of the valve body 10, and a flange member 20. A stator unit 60 has a tubular section 63 arranged so as to surround the groove 25. In addition, a sealing member 70 is arranged in the groove 25 in a state of being sandwiched between the cylindrical section 12 of the valve body 10 and the tubular section 63 of the stator unit 60.
Provided are a pressure detection unit for reducing cost while effectively suppressing the influence of static electricity, and a pressure sensor using this pressure detection unit. In the pressure detection unit, a housing that is provided inside a pressure reception space and is formed from an electrically conductive material comprises a bottomed cylinder part and a lid part blocking the open end of the bottomed cylinder part. A pressure detection device is disposed inside an opening connecting the inside and outside of the housing. The housing is electrically connected to one of multiple terminal pins connected to outside wiring and is kept at zero potential. Even if the external environment produces a charge in a liquid medium filling the pressure reception space, because the pressure detection device is surrounded by the housing, which is kept at zero potential, the effect of the charge is avoided and erroneous pressure detection device output, and the like, resulting from charge is prevented.
G01L 19/00 - MESURE DES FORCES, DES CONTRAINTES, DES COUPLES, DU TRAVAIL, DE LA PUISSANCE MÉCANIQUE, DU RENDEMENT MÉCANIQUE OU DE LA PRESSION DES FLUIDES - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
[Problem] To provide a flow passage switching valve capable of effectively suppressing valve leakage. [Solution] This flow passage switching valve (1) has a U-turn valve body (20) that has a first valve body part (21) and a second valve body part (22) having a square cylindrical shape. The first valve body part (21) has: a first U-turn passage (28) provided to an end surface (21a) on a first valve seat (13) side; and an annular wall part (21c) which is provided to an end surface (21b) on a second valve seat (15) side and to which a first valve seat (13)-side end section (22c) of the second valve part (22) is fitted. In addition, a second U-turn passage (29) is formed by the end surface (21b) of the first valve body part (21) and an inner circumferential surface (22e) of the second valve body part (22).
F16K 11/065 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture glissant linéairement
F25B 41/26 - Disposition des soupapes, p.ex. de soupapes marche-arrêt ou de soupapes de régulation de débit de soupapes d’inversion du flux de fluide
83.
RESIN MOLDED SOLENOID COIL AND SOLENOID VALVE EQUIPPED THEREWITH
A solenoid coil in which a wire (magnet wire) 15 wound around a bobbin, and a pair of connection terminals (first terminal 31a and second terminal 31b) for connecting the wire to an external circuit are covered with molding resins 51 and 51a, and a flywheel diode 41 is connected between the pair of connection terminals, wherein the first terminal has a diode connection portion to which the leading end of the wire is connected and the diode can be connected, the second terminal has a diode connection portion to which the trailing end of the wire is connected and the diode can be connected, a coating layer made of a molding resin has a diode mounting hole 51c that leads to each diode connection portion and can accept the diode so that the diode can be mounted after the coating layer is formed, and the mounting hole is closed by a sealing material provided separately from the molding resin.
F16K 31/06 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un aimant
H01F 7/06 - Electro-aimants; Actionneurs comportant des électro-aimants
H01F 41/00 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateurs; Appareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques
84.
RESIN MOLD ELECTROMAGNETIC COIL AND ELECTROMAGNETIC VALVE COMPRISING SAME
Provided is an electromagnetic coil 11 in which a wire 15 wound around a bobbin, a pair of connection terminals (first terminal 31a and second terminal 31b) for connecting the wire to an external circuit, and a diode 41 connected between the connection terminals are covered by a mold resin 51. A starting end of the wire is connected to the first terminal, and the first terminal has a diode attachment part 37a provided to the base end of the first terminal so as to rise from the outer surface of a flange 14a of the bobbin. A final end of the wire is connected to the second terminal, and the second terminal has a diode attachment part 37b provided to the base end of the second terminal so as to rise from the outer surface of the flange in parallel with the diode attachment part of the first terminal. The diode is connected so as to span between the diode attachment part of the first terminal and the diode attachment part of the second terminal.
[Problem] To provide an on-off valve that enables valve leakage to be effectively suppressed, and to provide an assembly method therefor. [Solution] In assembling an on-off valve 1, a seat member 20 is attached to a valve main body 10 by brazing, while a first guide tube 16 is attached to the valve main body 10 by brazing and a second guide tube 17 is attached to the seat member 20 by brazing. An adjustment tool 90 is inserted into a guide section 13 of the valve main body 10 to adjust a valve seat 24 of the seat member 20 attached to the valve main body 10. Subsequently a suction element 40 secured to a cap 30 is inserted into the guide section 13 of the valve main body 10, and the valve main body 10 and the cap 30 are attached by welding.
[Problem] To provide a flow path switching valve that makes it possible to switch flow paths using little force. [Solution] A flow path switching valve 1 in which when a valve rod 30 is moved to a first back pressure chamber 21 side, the interval between a first valve chamber 22 and the first back pressure chamber 21 is closed by a first valve body 41 and the interval between a second valve chamber 24 and an intermediate chamber 23 is closed by a second valve body 42. When the valve rod 30 is moved to a second back pressure chamber side, the interval between the first valve chamber 22 and the intermediate chamber 23 is closed by the first valve body 41, and the interval between the second valve chamber 24 and a second back pressure chamber 25 is closed by the second valve body 42. The valve rod 30 is provided with a pressure equalization passage 31 connecting the first back pressure chamber 21 and the second back pressure chamber 25.
F16K 11/048 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à sièges de soupape ou de clapet situés entre des corps de soupape ou de clapet mobiles
F16K 1/44 - Parties d'obturation - Détails du siège ou du corps de soupape pour les soupapes à double siège
Provided is a flow path switching valve such that the influence of burrs created by welding can be effectively reduced. A flow passage switching valve (1) has an annular joint part (90) provided between a valve main body (10) and a lower case (43) and whereat the inner circumferential surface of a circumferential wall portion (15) of the valve main body and the outer circumferential surface of a tubular portion (46) of the lower case are joined across the entire circumference. In addition, the flow passage switching valve has an annular first burr retaining space (91) and a second burr retaining space (92) which are provided between the valve main body and the lower case and arranged sandwiching the joint part.
Provided are a flow path structure, a check valve comprising the same, and a method for producing a check valve in which it is possible to ensure smooth flow of a fluid while reducing cost. A check valve 1 having a flow path structure that has a hollow valve body 2 and a metal retaining ring 6, wherein an annular retaining-ring attachment groove 243 with which the retaining ring 6 closely fits is formed inside the valve body 2, the retaining ring 6 has a C shape forming part of a helical shape, and a fluid flows inside the retaining ring 6 that is closely fitted into the retaining-ring attachment groove 243.
B21F 37/02 - Fabrication d'anneaux en fils métalliques d'anneaux élastiques, p.ex. d'anneaux de clés
F16K 15/02 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés
B23P 19/02 - Machines effectuant simplement l'assemblage ou la séparation de pièces ou d'objets métalliques entre eux ou des pièces métalliques avec des pièces non métalliques, que cela entraîne ou non une certaine déformation; Outils ou dispositifs à cet effet dans la mesure où ils ne sont pas prévus dans d'autres classes pour le montage d'objets à la presse, ou pour le démontage de ces objets
[Problem] To provide a flow path switching valve that enables the precision of a valve body rotational position to be effectively increased while ensuring smooth valve body rotation. [Solution] A flow path switching valve 1 comprises a valve stem 50 attached to a ball valve body 20. The flow path switching valve 1 comprises: a potentiometer shaft 60 that is pressed into an attachment hole 55 provided in an end face of the valve stem 50; and a potentiometer 80 for detecting the rotational angle, of the potentiometer shaft 60, around an axis L. The potentiometer shaft 60 comprises a small-diameter section 64, a medium-diameter section 63, and a large-diameter section 62 continuous in that order in the direction of the axis L, and is supported so as to be rotatable around the axis L within the attachment hole 55 in an insertion state prior to being pressed into the attachment hole 55. The large-diameter section 62 is pressed to an upper end 57a of the attachment hole 55.
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 11/087 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des robinets à boisseau à noix sphérique
Provided is a flow control valve capable of effectively suppressing a force applied to a valve body in a lateral direction. A flow control valve (1) has: a cylindrical housing (11) in which a valve chamber (14) is provided; and a sleeve (20), a lower end section (20a) of which is disposed in the valve chamber (14). The flow control valve (1) has: a valve body (30) that is held by the sleeve (20) so as to be movable in the direction of the axis (L) of the housing (11) and a distal end section (30a) of which is disposed in the valve chamber (14); and a first duct (18) that is disposed so as to penetrate the housing (11). In addition, the lower end section (20a) of the sleeve (20) is disposed between the valve body (30) and the first duct (18).
Provided is an electromagnetic-valve-integrated expansion valve 1 that has excellent working properties. The electromagnetic-valve-integrated expansion valve 1 has: a valve body 10 that comprises a valve chamber 12; a valve element 30 that restricts the passage of a fluid from the valve chamber 12 to an outlet refrigerant channel 13a by being seated on a valve seat 14 and allows passage of the fluid by separating from the valve seat 14; a coil spring 34 that impels the valve element 30 toward the valve seat 14; an operation rod 70 that contacts the valve element 30 at one end; a power element 50 that is attached to the valve body 10 and drives the operation rod 70; and an electromagnetic valve 100 that is provided to the valve body 10 and opens or closes a principal valve opening 25 that is provided between the valve chamber 12 and an outflow-side passage 13. The electromagnetic valve 100 has: a case 110 that is fixed to the valve body 10; and a connector 170 that is connected to a cord 122 that supplies power to the electromagnetic valve 100. The connector 170 is supported by a bracket 180 that extends from the valve body 10 or the case 110.
[Problem] To provide: a flow passage switching valve that can effectively improve the precision of the rotational position of a valve element; and an assembly method for the flow passage switching valve. [Solution] A flow passage switching valve (1) that has a ball valve element (20) that is housed inside a valve chamber (14) of a valve body (10) so as to be capable of rotating, a valve shaft (50) that is attached to the ball valve element (20), a potentio-shaft (60) that, by being press-fitted into an attachment hole (55) that is provided in an end surface (51b) of the valve shaft (50), is fixed to the valve shaft (50) such that a fitting shaft part (61) protrudes from the attachment hole (55), and a potentiometer (80) that detects the angle of rotation of the potentio-shaft (60) around an axis line (L). In an inserted state, before being press-fitted into the attachment hole (55), the potentio-shaft (60) is supported in the attachment hole (55) so as to be capable of rotating around the axis line (L).
F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 11/056 - Soupapes ou clapets à voies multiples, p.ex. clapets mélangeurs; Raccords de tuyauteries comportant de tels clapets ou soupapes; Aménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape en forme de sphère
Provided is an electric valve the size of which can further be reduced while suppressing the manufacturing man-hour. This electric valve has: a motor that comprises a stator member (62) and a rotor member (64) that displace a valve body (10); and a housing (4) that accommodates the motor, wherein the housing (4) is formed by joining a heat generating part formed from a first raw material (M1) to a heat receiving part formed from a second raw material (M2), and the light transmittance in the first raw material (M1) is lower than the light transmittance in the second raw material (M2).
F16K 31/04 - Moyens de fonctionnement; Dispositifs de retour à la position de repos magnétiques utilisant un moteur
B23K 26/57 - Travail par transmission du faisceau laser à travers ou dans la pièce à travailler le faisceau laser entrant dans une face de la pièce à travailler d’où il est transmis à travers le matériau de la pièce à travailler pour opérer sur une face différente de la pièce à travailler, p.ex. pour effectuer un enlèvement de matière, pour rac
F16K 27/00 - Structures des logements; Matériaux utilisés à cet effet
Provided is an improved expansion valve which has a simple configuration and with which undesired noise can be reduced. An expansion valve (10) comprising: a valve main body (2) which comprises a valve chamber (VS) and a valve seat (20); a valve body (3) which blocks passage of a fluid by being seated on the valve seat, and allows passage of the fluid by separating from the valve seat; a coil spring (41) which biases the valve body toward the valve seat; and an actuation rod (5) which resists bias force from the coil spring and presses the valve body in a direction separating the same from the valve seat, wherein the valve chamber (VS) has a cylindrical inner wall (24) which connects to the valve seat, the valve body (3) has a contact part (31) which is seated on the valve seat and a cylindrical trunk part (32) which faces the inner wall, and the trunk part comprises a connection surface (32b) which can slide against the inner wall and a flat surface (32a) which has a gap provided between said flat surface and the inner wall.
F16K 31/68 - Moyens de fonctionnement; Dispositifs de retour à la position de repos sensibles aux variations de température actionnés par pression de fluide ou par variations volumétriques dans une chambre fermée
Provided is an electric valve that is small but that enables the flow rate of fluid passing through the valve to be increased. A needle valve (24c) of a valve shaft (24) approaches a valve seat (65) while advancing into an orifice section (66). In a cross section through which an axis line (O) of an inflow pipe (IT) through which fluid flows into a valve chamber (21) and an axis line (L) of the valve shaft (24) pass, the axis line (O) of the inflow pipe (IT) and the axis line (L) of the valve shaft (24) intersect each other in the valve chamber (21). An end face (64) of a valve seat member (60) is positioned near the axis line of the inflow pipe (IT) in the cross section, and the valve chamber (21) is provided with a space (SP) into which fluid flows, on the opposite side from the inflow pipe (IT) with the end face (64) therebetween, inside a region (RG) wherein the inner circumference of the inflow pipe (IT) is extended along the axis line (O).
Provided is a flow-rate adjusting valve capable of effectively reducing flowing sound. In a flow-rate adjusting valve (1), a cylindrical part (16) of a seat member (11) is inserted into the inside of a cylindrical part (21) of a flow straightening member (20). A valve opening (30) extending from the inside of a valve seat (17) of the seat member (11) to a flow straightening part (22) of the flow straightening member (20) through the cylindrical part (16) and the cylindrical part (21) is formed. Furthermore, a third circumferential surface (35) which is the inner circumferential surface (21a) of the cylindrical part (21) and a second tapered surface (34) which is an end surface of the cylindrical part (16) are contiguous to each other around the entire circumference.
F16K 1/52 - Dispositifs pour le réglage additionnel du débit
F16K 47/02 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour empêcher les coups de bélier ou le bruit
F16K 47/08 - Moyens incorporés aux soupapes pour absorber l'énergie d'un fluide pour diminuer la pression, l'organe régulateur étant distinct de l'élément de fermeture
Provided is a refrigerant container with a rational structure which has both a receiver function and an accumulator function, and which can reduce component costs and processing and assembly costs by simplifying the structure of a lid member and others. The refrigerant container comprises: an outflow pipe section 20 for a receiver; an outflow pipe section 30 for an accumulator with a double-pipe structure comprising an inner pipe 31 and an outer pipe 32; and a strainer 40. The strainer 40 has: a cylindrical case section 42 placed on a bottom 13 of a tank 10; a baffle plate section 43 covering a part of an upper opening of the cylindrical case section 42; and a mesh filter 45 covering a part of the upper opening of the cylindrical case section 42 which is not covered with at least the baffle plate section 43. The outflow pipe section 20 for the receiver and the outflow pipe section 30 for the accumulator are arranged in parallel on the baffle plate section 43.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
Provided is an accumulator capable of increasing the oil return amount and improving system operation efficiency with a simple, inexpensive structure even under a condition in which, for instance, a liquid portion comprising a liquid phase refrigerant and an oil accumulating in the tank of the accumulator increases where the oil used is incompatible with the refrigerant and is of a smaller specific gravity than that of the refrigerant, resulting in a two-layer separated state (i.e. an upper oil layer and a lower liquid phase refrigerant layer), and the oil layer may form at an elevated position within the tank of the accumulator. A float member 20 is disposed so as to be slidable in the up-down direction at the outer periphery of an outflow tube 30. The float member 20 moves up and down according to a change in the oil liquid level height due to the floatation force from the oil contained in the refrigerant, and is provided with an oil return hole 25 in the portion that is immersed under the oil. The outflow tube 30 is provided with a slit hole 39 that extends in the up-down direction and communicates with the oil return hole 25 when the oil liquid level height exceeds a predetermined height.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur
F25B 43/02 - Dispositions pour la séparation ou la purification des gaz ou des liquides; Dispositions pour la vaporisation des résidus de fluides frigorigènes, p.ex. par la chaleur pour la séparation des lubrifiants du frigorigène
[Problem] To provide: a flow control valve that makes it possible to effectively decrease the differential pressure applied to a valve element in a movement direction without constraints on the shape of the valve element; and an assembly method for the flow control valve. [Solution] A flow control valve 1 in which a lower end 20a of an outer cylinder member 20 is plugged by a base member 10 and an upper end 20b of the outer cylinder member 20 is plugged by a holder body 71 to form a back pressure chamber 23 that is separated from a valve chamber 13. A drive shaft 64 is arranged to span the valve chamber 13 and the back pressure chamber 23. A passage 16 that goes to a valve opening 15 and a pressure equalization hole 17 that connects said passage 16 and the back pressure chamber 23 are provided in the base member 10.
[Problem] To provide a flow rate control valve capable of effectively reducing a differential pressure applied to a valve body. [Solution] A flow rate control valve 1 comprises: a bottomed cylindrical base member 10 that is provided with a valve chamber 13; and a valve body 6 that is arranged facing a valve opening 15 provided on a bottom wall part 12 of the base member 10. A back pressure chamber 23 separated from the valve chamber 13 is provided on the outside of the base member 10. An inflow opening 19 opening into the valve chamber 13 is provided on a base member body part 11 of the base member 10. A flow path 16 that is in communication with the valve opening 15 and a pressure equalization hole 17 that connects the flow path 16 and the outside of the base member 10 to each other are provided on the bottom wall part 12 of the base member 10. Further, when seen from a direction in which the valve body 6 and the valve opening 15 face each other, the pressure equalization hole 17 is arranged so as to be deviated from a position on a central line M of the inflow opening 19 and a position facing the inflow opening 19.
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