WO2022247835A1 - Détendeur électronique - Google Patents

Détendeur électronique Download PDF

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Publication number
WO2022247835A1
WO2022247835A1 PCT/CN2022/094769 CN2022094769W WO2022247835A1 WO 2022247835 A1 WO2022247835 A1 WO 2022247835A1 CN 2022094769 W CN2022094769 W CN 2022094769W WO 2022247835 A1 WO2022247835 A1 WO 2022247835A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion valve
electronic expansion
limiting
section
installation groove
Prior art date
Application number
PCT/CN2022/094769
Other languages
English (en)
Chinese (zh)
Inventor
冯忠波
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
Priority to KR1020237041998A priority Critical patent/KR20240005004A/ko
Priority to JP2023563988A priority patent/JP2024518887A/ja
Publication of WO2022247835A1 publication Critical patent/WO2022247835A1/fr

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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
    • F16K1/02—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 with screw-spindle
    • 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
    • F16K1/02—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 with screw-spindle
    • F16K1/04—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 with screw-spindle with a cut-off member rigid with the spindle, e.g. main 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
    • 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
    • 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
    • F16K31/0644—One-way valve
    • 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.
  • Existing electronic expansion valves generally use a rotor to drive the screw to rotate.
  • the rotor is connected to the screw rod through the connecting plate.
  • the connecting plate is provided with a mounting groove, the screw rod is passed through the mounting groove, the limiting plate is pressed into the mounting groove, and the limiting plate is fixedly connected with the screw rod.
  • the limit piece and the installation groove on the connecting plate are extruded and rubbed against each other. Since the connecting plate is generally made of injection molding material, part of the injection molding material will be limited after the edge of the installation groove is squeezed.
  • the chip is squeezed and cut off, and the scraped debris is squeezed between the limit plate and the bottom surface of the installation groove, which will cause the limit plate to fail to fit with the bottom surface of the installation groove, and eventually cause the inner hole of the limit plate to connect with the rotor.
  • the coaxiality of the hole in the plate is poor, which affects the positioning accuracy of the valve head fixed at the end of the screw.
  • the present application provides an electronic expansion valve to solve the problem in the prior art that the installation groove and the limit piece cannot be completely fitted.
  • the application provides an electronic expansion valve.
  • the electronic expansion valve includes: a rotor; a connecting plate, the connecting plate is at least partially connected to the rotor, the connecting plate is provided with a through hole and a mounting groove, and the through hole is disposed at the bottom of the mounting groove; a screw, The screw rod is set on the through hole and the installation groove; the limit piece is set in the installation groove, the limit piece is fixedly connected with the screw rod, and the rotor drives the screw to rotate through the limit piece and the installation groove; the connection plate is set There is a material storage tank, the material storage tank is arranged at the bottom of the installation tank, and the material storage tank is arranged near the edge of the installation tank.
  • the material holding tank is annular.
  • centerlines of the through hole, the centerline of the installation groove and the centerline of the storage groove coincide with each other.
  • the width of the material storage tank is 0.5 mm to 1.5 mm
  • the depth of the material storage tank is 0.5 mm to 1.5 mm.
  • the installation groove has a guiding section and a limiting section connected in sequence, the limiting section is located below the guiding section, and the circumferential dimension of the guiding section is larger than that of the limiting section.
  • the distance from the top edge of the limiting section to the bottom edge of the guiding section is 0.01 mm to 0.05 mm.
  • cross-sectional shapes of the guide segment and the limiting segment are adapted to the cross-sectional shape of the limiting piece.
  • the installation groove has a first anti-rotation structure
  • the limiting plate has a second anti-rotation structure matched with the first anti-rotation structure
  • a material storage tank is provided on the bottom edge of the installation groove, so that the debris that falls from the friction between the installation groove and the limit piece can enter the material storage tank, thereby preventing the debris from being squeezed into the Between the limit piece and the bottom surface of the installation groove, ensure that the limit piece is completely attached to the bottom of the installation groove, thereby ensuring the coaxiality between the limit piece, the rotor connecting plate and the screw, so that the valve head at the end of the screw can be accurately Move and block to ensure the control accuracy of the electronic expansion valve.
  • Figure 1 shows a schematic diagram of the internal structure of the electronic expansion valve provided by the present application
  • Figure 2 shows a schematic diagram of the internal three-dimensional structure of the electronic expansion valve provided by the present application
  • FIG. 3 shows a schematic diagram of a partial structure of the electronic expansion valve provided by the present application
  • Fig. 4 shows a schematic diagram of a partial structure of the electronic expansion valve provided by the present application.
  • Embodiment 1 of the present application provides an electronic expansion valve, including a rotor 10 , a connecting plate 20 , a screw 30 and a limiting plate 40 .
  • the rotor 10 is used to drive the screw 30 to rotate.
  • the rotor 10 is a magnetic rotor.
  • the connecting plate 20 is at least partly connected with the rotor 10 , the connecting plate 20 is provided with a through hole 21 and a mounting groove 22 , and the through hole 21 is disposed at the bottom of the mounting groove 22 .
  • the installation groove 22 is used for installing the limiting piece 40 .
  • the connecting plate 20 is an injection molding structure.
  • the screw rod 30 passes through the through hole 21 and the installation groove 22 .
  • the screw rod 30 is fixedly connected with the limiting piece 40 .
  • the connection between the screw rod 30 and the connecting plate 20 is achieved through the cooperation of the installation groove 22 and the limiting plate 40 , and then the rotor 10 can drive the screw rod 30 to rotate through the connecting plate 20 .
  • a material storage tank 23 is provided on the connecting plate 20 , the material storage tank 23 is arranged at the bottom of the installation groove 22 , and the material storage tank 23 is arranged near the edge of the installation groove 22 .
  • the poor degree of coaxiality of the screw rod 30 will lead to poor coaxiality, and then the valve head driven by the screw rod 30 cannot effectively seal the valve port, resulting in leakage of the valve port.
  • the material holding tank 23 can be arranged in multiple sections, and the multi-section material holding tank 23 is arranged at the bottom of the installation tank 22 at intervals.
  • the material holding tank 23 is arranged in an annular shape.
  • the material holding tank 23 can be a square annular groove, and can also be set as a circular annular groove.
  • the shape of the material holding groove 23 is adapted to the shape of the mounting groove 22, so that the material holding tank can be enlarged as much as possible. 23, so that the debris can completely fall into the container 23, to further ensure that the spacer 40 and the mounting groove 22 are fully fitted.
  • the centerlines of the through hole 21 , the centerline of the installation groove 22 and the centerline of the storage groove 23 coincide with each other. This can ensure the overall coaxiality of the device and improve the accuracy of the valve body.
  • the width of the storage tank 23 is 0.5 mm to 1.5 mm, and the depth of the storage tank 23 is 0.5 mm to 1.5 mm.
  • the size of the material holding tank 23 is relatively small, and the strength of the connecting plate 20 can be ensured while ensuring enough space to accommodate debris through the above arrangement.
  • the installation groove 22 has a guiding section 221 and a limiting section 222 connected in sequence.
  • the limiting section 222 is located below the guiding section 221 .
  • the circumferential dimension of the guiding section 221 is larger than that of the limiting section 222 .
  • the limiting section 222 is used to install the limiting piece 40, the limiting piece 40 is installed in cooperation with the limiting section 222, and the guiding section 221 is set to guide the limiting piece 40, so that the limiting piece 40 is conveniently installed, and the limiting piece is realized.
  • the quick alignment of 40 and the limiting section 222 improves the installation efficiency.
  • the inner wall of the guide section 221 is inclined, the bottom end of the guide section 221 coincides with the top end of the limiting section 222, and the circumferential dimension of the top end of the guiding section 221 is larger than the circumferential dimension of the top end of the limiting section.
  • the circumferential dimension of the top end and the bottom end of the guide section 221 can also be consistent, and the circumferential dimension of the guide section 221 is larger than that of the limiting section.
  • the distance between the inner wall of the limiting section 222 and the inner wall of the guiding section 221 is 0.01 mm to 0.05 mm.
  • the circumferential dimension of the guide section 221 is slightly larger than that of the limiting section 222. If the dimension is smaller than 0.01 mm, it is difficult to put the limiting piece 40 into the guiding section 221. If the dimension is greater than 0.05 mm, it is difficult to play a guiding role. Therefore, designing the distance between the two inner walls between 0.01 mm and 0.05 mm can facilitate the installation of the limiting piece 40 and improve the accuracy of the guide.
  • the cross-sectional shapes of the guide section 221 and the limiting section 222 are adapted to the cross-sectional shape of the limiting piece 40 .
  • the size of the limiting piece 40 is slightly larger than that of the limiting section 222 , so that when the limiting piece 40 is installed in the limiting section 222 , the two can be closely attached and fastened.
  • the installation groove 22 has a first anti-rotation structure 223
  • the limiting piece 40 has a second anti-rotation structure 41 matched with the first anti-rotation structure 223 .
  • the limiting piece 40 and the mounting groove 22 are mutually locked, so that the limiting piece 40 rotates with the connecting plate 20 when the connecting plate 20 rotates, and then the screw rod 30 rotates with the connecting plate 20 .
  • the installation groove 22 has a plurality of sides, and the plurality of sides form the first anti-rotation structure 223 , so that the installation groove 22 can be designed as a groove with a non-circular cross section.
  • the limiting piece 40 has multiple sides, and the multiple sides form the second anti-rotation structure 41 , so that the limiting piece 40 is designed as a block with a non-circular cross section.
  • the first anti-rotation structure 223 cooperates with the second anti-rotation structure 41, so that the limiting piece 40 will not rotate relative to the mounting groove 22.
  • the section of the installation slot 22 is rectangular, and the outline of the limiting piece 40 is rectangular.
  • Embodiment 2 of the present application provides an electronic expansion valve, which is different from Embodiment 1 in that there are multiple storage tanks 23 arranged at intervals at the bottom of the installation tank 22 .
  • a material holding tank 23 is provided at the bottom of the installation groove 22 to accommodate the debris that falls when the connecting plate 20 and the limiting piece 40 are squeezed, thereby preventing the debris from being squeezed to the limit.
  • the installation groove 22 has a guide section 221 and a limit section 222 connected in sequence, the limit section 222 is located below the guide section 221, and the guide section
  • the circumferential dimension of 221 is larger than the circumferential dimension of the limiting section 222.
  • the guide section 221 is provided to facilitate the installation of the limiting piece 40, realize the quick alignment of the limiting piece 40 and the limiting section 222, and improve the installation efficiency.
  • 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 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)
  • Electrically Driven Valve-Operating Means (AREA)
  • Sliding Valves (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne un détendeur électronique, comprenant : un rotor (10) ; une plaque de liaison (20) au moins partiellement reliée au rotor (10) et dotée d'un trou traversant (21) et d'une rainure de montage (22), le trou traversant (21) étant disposé au fond de la rainure de montage (22) ; une vis (30) traversant le trou traversant (21) et la rainure de montage (22) ; et une pièce de limitation (40) disposée dans la rainure de montage (22) et reliée de manière fixe à la vis (30), le rotor (10) étant mis en correspondance avec la rainure de montage (22) au moyen de la pièce de limitation (40) pour entraîner la vis en rotation. La plaque de liaison (20) est dotée d'une rainure de maintien de matériau (23), et la rainure de maintien de matériau (23) est disposée au fond de la rainure de montage (22) et agencée à proximité d'un bord de la rainure de montage (22). Le problème de l'état de la technique selon lequel la rainure de montage et la pièce de limitation ne peuvent pas être complètement ajustées peut être résolu.
PCT/CN2022/094769 2021-05-24 2022-05-24 Détendeur électronique WO2022247835A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020237041998A KR20240005004A (ko) 2021-05-24 2022-05-24 전자 팽창 밸브
JP2023563988A JP2024518887A (ja) 2021-05-24 2022-05-24 電子膨張弁

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121123205.0U CN215806346U (zh) 2021-05-24 2021-05-24 电子膨胀阀
CN202121123205.0 2021-05-24

Publications (1)

Publication Number Publication Date
WO2022247835A1 true WO2022247835A1 (fr) 2022-12-01

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ID=80173663

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Application Number Title Priority Date Filing Date
PCT/CN2022/094769 WO2022247835A1 (fr) 2021-05-24 2022-05-24 Détendeur électronique

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JP (1) JP2024518887A (fr)
KR (1) KR20240005004A (fr)
CN (1) CN215806346U (fr)
WO (1) WO2022247835A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215806346U (zh) * 2021-05-24 2022-02-11 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
US20090194721A1 (en) * 2006-09-27 2009-08-06 Shigehiro Watanabe Needle valve
US20160146366A1 (en) * 2014-11-25 2016-05-26 Tgk Co., Ltd. Motor operated valve
CN212657268U (zh) * 2020-06-17 2021-03-05 浙江盾安禾田金属有限公司 电子膨胀阀
CN112524261A (zh) * 2020-12-14 2021-03-19 广东威灵电机制造有限公司 电子膨胀阀以及制冷设备
CN215806346U (zh) * 2021-05-24 2022-02-11 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
US20090194721A1 (en) * 2006-09-27 2009-08-06 Shigehiro Watanabe Needle valve
US20160146366A1 (en) * 2014-11-25 2016-05-26 Tgk Co., Ltd. Motor operated valve
CN212657268U (zh) * 2020-06-17 2021-03-05 浙江盾安禾田金属有限公司 电子膨胀阀
CN112524261A (zh) * 2020-12-14 2021-03-19 广东威灵电机制造有限公司 电子膨胀阀以及制冷设备
CN215806346U (zh) * 2021-05-24 2022-02-11 浙江盾安禾田金属有限公司 电子膨胀阀

Also Published As

Publication number Publication date
CN215806346U (zh) 2022-02-11
JP2024518887A (ja) 2024-05-08
KR20240005004A (ko) 2024-01-11

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