WO2023088253A1 - Détendeur électronique - Google Patents

Détendeur électronique Download PDF

Info

Publication number
WO2023088253A1
WO2023088253A1 PCT/CN2022/132021 CN2022132021W WO2023088253A1 WO 2023088253 A1 WO2023088253 A1 WO 2023088253A1 CN 2022132021 W CN2022132021 W CN 2022132021W WO 2023088253 A1 WO2023088253 A1 WO 2023088253A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
hole
stopper
stop
connecting plate
Prior art date
Application number
PCT/CN2022/132021
Other languages
English (en)
Chinese (zh)
Inventor
康志军
朱方英
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Publication of WO2023088253A1 publication Critical patent/WO2023088253A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the field of electronic expansion valves, in particular, to an electronic expansion valve.
  • the existing electronic expansion valve generally includes a valve body, a nut, a valve needle, a magnetic rotor, a connecting plate, a retaining ring and a screw rod.
  • the nut, valve needle, magnetic rotor, connecting plate and screw rod are all arranged inside the valve body, the nut is assembled on the valve body, the screw rod is movably assembled in the nut, the valve needle is installed inside the screw rod, and the magnetic
  • the rotor is arranged on the periphery and covers a part of the nut, the stop ring is sleeved in the magnetic rotor, and the screw rod is fixed to the connecting plate.
  • the screw rod is fixed to the connecting plate, and the valve needle is arranged inside the screw rod to realize the up and down movement of the valve needle.
  • Such arrangement makes the internal structure of the electronic expansion valve complex, makes installation difficult, and greatly increases the production cost.
  • the present application provides an electronic expansion valve to solve the problems of complex structure and difficult installation in the prior art.
  • the application provides an electronic expansion valve, comprising: a valve casing, the valve casing has a valve cavity and a valve port, the valve port communicates with the valve cavity; a nut seat, the nut seat is arranged in the valve cavity and is fixedly connected with the valve casing, and the nut seat A threaded through hole is arranged on the valve needle; the valve needle is movably installed in the threaded through hole.
  • the hole is threadedly connected, the second end of the valve needle is set corresponding to the valve port, and the second end of the valve needle is used to control the opening of the valve port;
  • the magnetic rotor is rotatably set in the valve cavity;
  • the connecting plate is set Between the magnetic rotor and the valve needle, the connecting plate is provided with a first through hole, the first end of the valve needle is penetrated in the first through hole and is fixedly connected with the connecting plate, and the outer ring of the connecting plate is fixedly connected with the magnetic rotor
  • the stopper is arranged on the outer periphery of the nut seat, the upper surface of the stopper is fixedly connected with the bottom surface of the connecting plate, and there is a stop structure between the stopper and the nut seat to limit the stroke of the valve needle.
  • the electronic expansion valve includes a valve housing, a nut seat, a valve needle, a magnetic rotor, a connecting plate and a stopper.
  • the outer ring of the connecting plate is fixedly connected with the magnetic rotor
  • the valve needle is fixedly connected with the connecting plate through the first through hole
  • the upper surface of the stopper is fixedly connected with the bottom surface of the connecting plate.
  • the stopper is provided with a second through hole, the second through hole is arranged coaxially with the first through hole, the second through hole includes a first hole segment and a second hole segment communicating with each other, and the valve needle passes through in sequence It is located in the second through hole and the first through hole, and the inner wall of the first hole section and the valve needle are transition fit, the end of the nut seat away from the valve port extends into the second hole section, and the stopper structure is set at Between the second hole segment and the nut seat.
  • the valve needle passes through the first hole section and is transitionally connected with the first hole section, which can effectively prevent the valve needle from tilting and avoid the shaking of the valve needle.
  • the stop structure includes: a first stop boss and a second stop boss, arranged at intervals along the circumferential direction of the second through hole on the inner wall of the second hole segment; stoppers, arranged on the nut seat On the outer wall, the stop part is located between the first stop boss and the second stop boss.
  • the valve needle has the maximum opening position for opening the valve port and the closed position for blocking the valve port. When the valve needle moves to close position, the first stop boss abuts against the stop portion, and when the valve needle moves to the maximum opening position, the second stop boss abuts against the stop portion.
  • Such setting can determine the range of up and down movement of the valve needle, which not only prevents the valve body from being too large due to the high displacement of the valve needle, but also avoids damage to the valve needle or the valve port caused by the impact of the valve needle when it falls, and improves the electronic expansion. service life of the valve.
  • a protrusion is provided on the upper surface of the stopper, a mounting hole is provided on the connecting plate, and the protrusion is riveted into the mounting hole.
  • the mounting hole matches the shape of the raised part to ensure the stability of the connection between the two.
  • protrusions and installation holes there are multiple protrusions and multiple installation holes, and the protrusions and the installation holes are provided in one-to-one correspondence. With such arrangement, relative displacement between the mounting plate and the stopper can be avoided.
  • the stopper is integrated with the connecting plate.
  • the coaxiality between the stopper and the connecting plate is good, and the structural stability between the stopper and the connecting plate is improved.
  • valve needle is welded to the connecting plate. This can make the connection between the valve needle and the connecting plate firm, thereby preventing the valve needle from shaking.
  • the connecting plate and the stopper are arranged inside the magnetic rotor, and the outer side wall of the stopper is attached to the inner wall of the magnetic rotor. In this way, the stopper will not shake during the rotation process, thereby ensuring the smooth operation of the stopper.
  • the stopper is also provided with a demoulding through hole, and the demoulding through hole is arranged corresponding to the second stop boss along the axial direction. Simplify the processing steps of the stopper to ensure the smooth progress of the demoulding process.
  • the stop part is arranged on the side wall of the end of the nut seat away from the valve port, the stop part extends along the circumferential direction of the nut seat, and the stop part has a first end surface and a second end surface oppositely arranged;
  • the first stop The stop boss has a first stop surface
  • the second stop boss has a second stop surface, one of the first end surface and the second end surface is used to fit and abut against the first stop surface, and the first end surface and the second end surface The other of the second end surfaces is used to fit and abut against the second stop surface.
  • the surface-to-surface contact between the end surface and the stop surface can effectively reduce the pressure, and prevent the stop structure or the stop part from being damaged due to the impact force when the end surface contacts the stop surface.
  • Figure 1 shows a schematic structural view of the electronic expansion valve provided by the present application
  • Figure 2 shows a schematic structural view of the stopper provided by the present application
  • Figure 3 shows a schematic view of the structure of the other side of the stopper provided by the present application.
  • Fig. 4 shows a schematic structural view of the nut seat provided by the present application.
  • Valve housing 11. Valve cavity; 12. Valve port; 20. Valve needle; 21. First end; 22. Second end; 30. Nut seat; 31. Threaded through hole; 32. Stopper part; 40 , magnetic rotor; 50, connecting plate; 60, stopper; 61, stop structure; 611, first stop boss; 612, second stop boss; 62, second through hole; 621, first Hole section; 622, the second hole section; 63, the demoulding through hole; 64, the raised part.
  • Embodiment 1 of the present application provides an electronic expansion valve, which includes a valve housing 10 , a nut seat 30 , a valve needle 20 , a magnetic rotor 40 , a connecting plate 50 and a stopper 60 .
  • the valve casing 10 has a valve chamber 11 and a valve port 12 , and the valve port 12 communicates with the valve chamber 11 .
  • the nut seat 30 is arranged in the valve cavity 11 and is fixedly connected with the valve housing 10 , and the nut seat 30 is provided with a threaded through hole 31 .
  • the valve needle 20 is movably installed in the threaded through hole 31, the valve needle 20 has a first end 21 and a second end 22 oppositely arranged, the valve needle 20 is provided with an external thread, and the external thread is threadedly connected with the threaded through hole 31 , the second end 22 of the valve needle 20 is disposed corresponding to the valve port 12 , and the second end 22 of the valve needle 20 is used to control the opening of the valve port 12 .
  • the magnetic rotor 40 is rotatably disposed in the valve cavity 11 .
  • the connecting plate 50 is arranged between the magnetic rotor 40 and the valve needle 20, the connecting plate 50 is provided with a first through hole, the first end 21 of the valve needle 20 is penetrated in the first through hole and fixedly connected with the connecting plate 50, The outer ring of the connecting plate 50 is fixedly connected with the magnetic rotor 40 .
  • the stopper 60 is arranged on the outer periphery of the nut seat 30, the upper surface of the stopper 60 is fixedly connected with the bottom surface of the connecting plate 50, and there is a stop structure 61 between the stopper 60 and the nut seat 30 to limit the movement of the valve needle 20. journey.
  • the electronic expansion valve includes a valve housing 10 , a nut seat 30 , a valve needle 20 , a magnetic rotor 40 , a connecting plate 50 and a stopper 60 .
  • the outer ring of the connecting plate 50 is fixedly connected with the magnetic rotor 40
  • the valve needle 20 is fixedly connected with the connecting plate 50 through the first through hole
  • the upper surface of the stopper 60 is fixedly connected with the bottom surface of the connecting plate 50 .
  • the magnetic rotor 40 drives the connecting plate 50 to rotate, and the connecting plate 50 drives the valve needle 20 and the stopper 60 to rotate respectively, and the connecting plate 50 is fixedly connected to the valve needle 20 to ensure that the valve needle 20 and the valve port
  • the above structure is adopted, the structure is simple, and the internal parts of the valve body are compact in structure, easy to install, easy to operate, and because there are fewer parts in the valve body, the cost is low.
  • the stopper 60 is provided with a second through hole 62, the second through hole 62 is arranged coaxially with the first through hole, and the second through hole 62 includes a first hole section 621 and a second hole section 622 which communicate with each other,
  • the valve needle 20 passes through the second through hole 62 and the first through hole in sequence, and the inner wall of the first hole section 621 and the valve needle 20 are in a transition fit, and the end of the nut seat 30 away from the valve port 12 extends into the In the second hole section 622 , the stop structure 61 is disposed between the second hole section 622 and the nut seat 30 .
  • the valve needle 20 passes through the first hole section 621 and is transitionally connected with the first hole section 621, which can effectively prevent the valve needle 20 from tilting, avoid the shaking of the valve needle 20, and further ensure that the magnetic rotor 40, the connecting plate 50, the valve needle 20, Concentricity between stopper 60 and valve port 12.
  • the stop structure 61 includes a first stop boss 611 and a second stop boss 612, the first stop boss 611 and the second stop boss 612 are along the second through hole
  • the circumferential intervals of 62 are provided on the inner wall of the second hole segment 622 .
  • the stopper 32 is arranged on the outer wall of the nut seat 30, the stopper 32 is located between the first stopper boss 611 and the second stopper boss 612, and the valve needle 20 has a maximum opening position for opening the valve port 12.
  • the first stopper boss 611 is located above the second stopper boss 612, and a stopper 32 is provided on the outer wall of the nut holder 30, and the stopper 32 abuts against the first stopper boss 611.
  • the valve needle 20 moves to the lowest position, and the valve needle 20 closes with the valve port 12 to prevent the passage of fluid;
  • the opening with valve port 12 is the largest.
  • Such setting can determine the range of up and down movement of the valve needle 20, which not only prevents the valve needle 20 from rising too high and causing the volume of the valve body to be too large, but also avoids the impact of the valve needle 20 on the valve port 12 when it falls, causing the valve needle 20 or the valve port 12 to break. Damage, improve the service life of the electronic expansion valve.
  • the upper surface of the stopper 60 is provided with a raised portion 64
  • the connecting plate 50 is provided with a mounting hole
  • the raised portion 64 is riveted in the mounting hole.
  • the raised portion 64 is a non-cylindrical body
  • the mounting hole matches the shape of the raised portion 64 to ensure the stability of the connection between the two, and to prevent the stopper 60 from colliding with the connecting plate during rotation. Relative displacement between 50.
  • the connecting plate 50 may also be fixedly connected to the stopper 60 by means of welding or the like.
  • One or more protrusions 64 may be provided, and in this application, a plurality of protrusions 64 are provided. As shown in FIG. 3 , three protruding portions 64 are provided. Such arrangement can avoid relative displacement between the mounting plate and the stopper 60 and ensure structural stability between the mounting plate and the stopper 60 .
  • valve needle 20 is welded to the connecting plate 50 .
  • This can make the connection between the valve needle 20 and the connecting plate 50 firm, thereby preventing the valve needle 20 from shaking, thereby ensuring that the coaxiality between the valve needle 20 and the valve port 12 is better, and welding is adopted, which is efficient and economical Good sex.
  • the connecting plate 50 and the stopper 60 are disposed inside the magnetic rotor 40 , and the outer wall of the stopper 60 is attached to the inner wall of the magnetic rotor 40 .
  • the magnetic rotor 40 drives the connecting plate 50 and the stopper 60 to rotate at the same time, because the outer wall of the stopper 60 fits the inner wall of the magnetic rotor, the stopper 60 will not shake during the rotation process, ensuring that the stopper 60 smooth operation.
  • the outer wall of the stopper 60 is attached to the inner wall of the magnetic rotor 40, and the structural stability between the stopper 60 and the magnetic rotor 40 is better, so that the coaxiality between the first through hole and the valve port 12
  • the above-mentioned structure makes the valve needle 20 and the valve port 12 have better coaxiality.
  • the stopper 60 is also provided with a demoulding through hole 63 , and the demoulding through hole 63 is arranged corresponding to the second stop boss 612 along the axial direction.
  • the upper surface of the first stop boss 611 fits the upper surface of the second hole section 622, there is a certain distance between the second stop boss 612 and the upper surface of the second hole section 622, and the stopper 60 is Integral injection molding, therefore, a demoulding through hole 63 is provided on the stopper 60 , and the second stopper boss 612 is axially corresponding to the demoulding through hole 63 , which can simplify the processing steps of the stopper 60 .
  • the structural size of the demoulding through hole 63 is slightly larger than the structural size of the second stopper boss 612, so as to ensure the smooth progress of the demoulding process and ensure the demoulding effect.
  • the stop portion 32 is arranged on the side wall of the end of the nut seat 30 away from the valve port 12, the stop portion 32 extends along the circumferential direction of the nut seat 30, and the stop portion 32 has a first end surface and a second end surface oppositely arranged. end face.
  • the first stop boss 611 has a first stop surface
  • the second stop boss 612 has a second stop surface
  • one of the first end surface and the second end surface is used to fit and abut against the first stop surface
  • the other one of the first end surface and the second end surface is used to fit and abut against the second stop surface.
  • the surface-to-surface contact between the end surface and the stop surface can effectively reduce the pressure, and prevent the stop structure or the stop part from being damaged due to the impact force when the end surface contacts the stop surface.
  • the stop portion 32 extends along the circumferential direction of the nut seat 30 , and the first end surface and the second end surface are located on two axially extending end surfaces of the stop portion 32 .
  • the first stop boss 611 and the second stop boss 612 extend along the radial direction of the second hole segment, the first stop surface is located on the side of the first stop boss 611, the second stop surface is located on the second The side of the stop boss 612, and the first end surface is arranged parallel to the first stop surface, and the second end surface is arranged parallel to the second stop surface, so that the stop part 32 can reach the maximum opening position or In the closed position, the end surface of the stop portion 32 can be completely attached to the stop surface.
  • the first end of the valve needle 20 is fixedly connected with the first through hole of the connecting plate 50, the external thread provided in the middle of the valve needle 20 is threadedly connected with the threaded through hole 31 of the nut seat 30, and the internal structure of the valve body Simple, with fewer parts, easy installation and easy operation.
  • Embodiment 2 of the present application provides an electronic expansion valve, which is different from Embodiment 1 in that: the stopper 60 is integrated with the connecting plate 50 .
  • the stopper 60 and the connection plate 50 can be integrally injection-molded, so that the coaxiality between the stopper 60 and the connection plate 50 is better, and the structural stability between the stopper 60 and the connection plate 50 is improved.
  • the processing steps of the stopper 60 and the connecting plate 50 are simplified, the installation efficiency is improved, and labor is saved.
  • orientation words such as “front, back, up, down, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present application; the orientation words “inner and outer” refer to the inner and outer relative to the outline of each component itself.
  • spatially relative terms may be used here, such as “on !, “over !, “on the surface of !, “above”, etc., to describe The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as “above” or “above” other devices or configurations would then be oriented “beneath” or “above” the other devices or configurations. under other devices or configurations”. Thus, the exemplary term “above” can encompass both an orientation of “above” and “beneath”. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

L'invention divulgue un détendeur électronique, comprenant : un boîtier de détendeur (10) ayant une cavité de détendeur (11) et un orifice de détendeur (12) en communication l'un avec l'autre ; un support d'écrou (30) disposé dans la cavité de détendeur (11) et relié au boîtier de détendeur (10) et pourvu d'un trou traversant fileté (31) ; une aiguille de détendeur (20) disposée de façon mobile dans le trou traversant fileté (31) dans un mode de pénétration et pourvue d'une première extrémité (21) et d'une seconde extrémité (22) opposées l'une de l'autre, des filetages externes étant disposés sur l'aiguille de détendeur (20), les filetages externes étant vissés dans le trou traversant fileté (31), la seconde extrémité (22) correspondant à l'orifice de détendeur (12) et la seconde extrémité (22) étant utilisée pour régler le degré d'ouverture de l'orifice de détendeur (12) ; un rotor magnétique (40) disposé de manière rotative dans la cavité de détendeur (11) ; une plaque de liaison (50) disposée entre le rotor magnétique (40) et l'aiguille de détendeur (20) et pourvue d'un premier trou traversant, la première extrémité (21) de l'aiguille de détendeur (20) traversant le premier trou traversant et étant reliée à demeure à la plaque de liaison (50), et une bague extérieure de la plaque de liaison (50) étant reliée au rotor magnétique (40) ; et un bouchon (60) disposé à la périphérie du support d'écrou (30), la surface supérieure du bouchon (60) étant reliée à la surface inférieure de la plaque de liaison (50) et une structure d'arrêt (61) étant disposée entre le bouchon (60) et le support d'écrou (30). Le problème dans l'état de la technique de structure complexe peut être résolu.
PCT/CN2022/132021 2021-11-19 2022-11-15 Détendeur électronique WO2023088253A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122859274.4 2021-11-19
CN202122859274.4U CN216242310U (zh) 2021-11-19 2021-11-19 电子膨胀阀

Publications (1)

Publication Number Publication Date
WO2023088253A1 true WO2023088253A1 (fr) 2023-05-25

Family

ID=80946704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/132021 WO2023088253A1 (fr) 2021-11-19 2022-11-15 Détendeur électronique

Country Status (2)

Country Link
CN (1) CN216242310U (fr)
WO (1) WO2023088253A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216242310U (zh) * 2021-11-19 2022-04-08 浙江盾安禾田金属有限公司 电子膨胀阀

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040129013A1 (en) * 2002-07-05 2004-07-08 Gilbert Major H Air conditioner access and service fittings
US20180156350A1 (en) * 2015-06-01 2018-06-07 Aktiebolaget Skf Valve operator assembly with double screw mechanism
CN108361385A (zh) * 2017-01-26 2018-08-03 浙江三花智能控制股份有限公司 电子膨胀阀
CN212959909U (zh) * 2020-08-31 2021-04-13 盾安环境技术有限公司 电子膨胀阀
CN216242310U (zh) * 2021-11-19 2022-04-08 浙江盾安禾田金属有限公司 电子膨胀阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040129013A1 (en) * 2002-07-05 2004-07-08 Gilbert Major H Air conditioner access and service fittings
US20180156350A1 (en) * 2015-06-01 2018-06-07 Aktiebolaget Skf Valve operator assembly with double screw mechanism
CN108361385A (zh) * 2017-01-26 2018-08-03 浙江三花智能控制股份有限公司 电子膨胀阀
CN212959909U (zh) * 2020-08-31 2021-04-13 盾安环境技术有限公司 电子膨胀阀
CN216242310U (zh) * 2021-11-19 2022-04-08 浙江盾安禾田金属有限公司 电子膨胀阀

Also Published As

Publication number Publication date
CN216242310U (zh) 2022-04-08

Similar Documents

Publication Publication Date Title
WO2023088253A1 (fr) Détendeur électronique
WO2022193812A1 (fr) Soupape électrique
CN211145371U (zh) 电子膨胀阀
JP7355937B2 (ja) 電子膨張弁
WO2023088254A1 (fr) Détendeur électronique
EP3872380A1 (fr) Vanne d'expansion électronique
WO2023174380A1 (fr) Détendeur électronique
KR100456786B1 (ko) 자동닫힘 도어용 힌지에 있어서 유압제어구조
WO2023051825A1 (fr) Détendeur électronique
WO2020132967A1 (fr) Vanne de détente électronique
CN111059295B (zh) 电子膨胀阀
WO2022247835A1 (fr) Détendeur électronique
CN215763306U (zh) 电子膨胀阀
WO2022199230A1 (fr) Vanne de détente électronique
CN109268334A (zh) 一种用于液压工具的单向阀及液压工具
US11906217B2 (en) Electronic expansion valve
US7802512B2 (en) Assembly structure of drive shaft and swash plate in swash plate type compressor
CN213206563U (zh) 电子膨胀阀
WO2020181922A1 (fr) Vanne de détente électronique et système de réfrigération
JP6951579B2 (ja) 電子膨張弁
KR20240074879A (ko) 전자 팽창 밸브
CN209294158U (zh) 一种用于液压工具的单向阀及液压工具
CN220249111U (zh) 一种长寿命柱塞阀
CN219529863U (zh) 电动阀
CN114458773B (zh) 电子膨胀阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22894786

Country of ref document: EP

Kind code of ref document: A1