WO2023109368A1 - Ensemble bobine et soupape d'expansion électronique équipée de celui-ci - Google Patents

Ensemble bobine et soupape d'expansion électronique équipée de celui-ci Download PDF

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Publication number
WO2023109368A1
WO2023109368A1 PCT/CN2022/130407 CN2022130407W WO2023109368A1 WO 2023109368 A1 WO2023109368 A1 WO 2023109368A1 CN 2022130407 W CN2022130407 W CN 2022130407W WO 2023109368 A1 WO2023109368 A1 WO 2023109368A1
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WO
WIPO (PCT)
Prior art keywords
transition
coil assembly
connection seat
connection
connecting seat
Prior art date
Application number
PCT/CN2022/130407
Other languages
English (en)
Chinese (zh)
Inventor
张积友
陈勇好
胡建苗
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.)
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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 WO2023109368A1 publication Critical patent/WO2023109368A1/fr

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    • 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
    • F25B41/345—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Definitions

  • the present application relates to the technical field of electronic expansion valves, in particular, to a coil assembly and an electronic expansion valve having the same.
  • the existing coil assembly includes a body, a connecting seat and a circuit board, wherein a stator assembly is arranged in the body, and the connecting seat is used to fix the pin structure.
  • a stator assembly is arranged in the body, and the connecting seat is used to fix the pin structure.
  • one end of the pin structure is connected with the stator assembly, and the other end of the pin structure is electrically connected with the circuit board.
  • the present application provides a coil assembly and an electronic expansion valve having the same, so as to solve the problem of poor injection molding effect of the coil assembly in the prior art.
  • a coil assembly including: a body having a housing cavity; a stator assembly disposed in the housing cavity, the stator assembly having pins; a connecting seat, the connecting seat being disposed on the side wall of the body,
  • the connection seat and the body are integrally injection molded.
  • the connection seat has a mounting surface and multiple sides. The mounting surface is located on the side of the connection seat away from the body.
  • a first transition structure is provided at the joint between the side of at least one connecting seat and the main body.
  • connection seat and the body are integrally formed during processing, and the side of the connection seat is connected to the body, and at the same time, a first transition structure is provided at the connection between the connection seat and the body.
  • the first transition structure can be used to reduce the resistance at the joint between the connecting seat and the body when the plastic sealing compound is injected, so that the plastic sealing compound flows more smoothly, thereby reducing the generation of overall air bubbles after final molding, so Improve the sealing and insulation performance, and ensure the quality of the coil assembly.
  • the first transition structure includes a transition arc surface, the transition arc surface is tangent to the side wall where the transition arc surface of the connecting seat is located, and the transition arc surface is tangent to the side wall of the main body.
  • Such setting is convenient for processing, and at the same time, it can further ensure the flow effect of the molding compound and the molding effect of the joint between the connecting seat and the main body.
  • the radius of the transition arc surface is A, and 4mm ⁇ A ⁇ 0.5mm.
  • the radius of the transition arc surface is less than 0.5 mm, the structural size of the first transition structure will be too small, so that the molding compound will still have relatively large resistance at the first transition structure, affecting the flow of the molding compound.
  • the radius of the transition arc is greater than 4 mm, the size of the first transition structure will be too large, which will interfere with the connecting seat or other parts, and affect the normal connection between the coil assembly and other components.
  • the first transition structure includes a transition slope, and the angle between the transition slope and the side of the connecting seat where the transition slope is located is B, and 180°>B ⁇ 130°. Such an arrangement facilitates the processing of the coil assembly, and can make the molding compound flow more smoothly.
  • the connecting seat has a first side, a second side, a third side and a fourth side, the first side is opposite to the second side, the third side is opposite to the fourth side, the first side and the second side are respectively Located on both sides of the connection seat, the third side and the fourth side are respectively located on the top and bottom of the connection seat, the number of the first transition structure is multiple, between the first side and the body, between the second side and the body and the second A first transition structure is provided between the three sides and the main body. Setting multiple first transition structures can further improve the flow smoothness of the molding compound, ensure that there are no air bubbles at the connection between the first side, the second side and the third side of the connecting seat and the body, and improve the overall quality of the coil assembly.
  • a second transition structure is provided between the connection seat and the side wall of the body, the second transition structure is located between two adjacent first transition structures, and the second transition structure connects the two adjacent first transition structures.
  • At least one first transition structure is a transition arc surface, and at least one first transition structure among the remaining plurality of first transition structures is a transition slope.
  • an electronic expansion valve is provided, and the electronic expansion valve includes the coil assembly provided above. After the electronic expansion valve adopts the coil assembly provided by the above embodiment, the product quality of the electronic expansion valve can be improved and the service life of the electronic expansion valve can be prolonged.
  • FIG. 1 shows a schematic structural diagram of a coil assembly provided in Embodiment 1 of the present application
  • Fig. 2 shows a top view of the coil assembly provided by Embodiment 1 of the present application
  • FIG. 3 shows a schematic structural diagram of a coil assembly provided in Embodiment 2 of the present application
  • Fig. 4 shows a top view of the coil assembly provided by Embodiment 2 of the present application.
  • Body 20. Connecting seat; 21. First transitional structure; 22. First side; 23. Second side; 24. Third side; 25. Second transitional structure.
  • the embodiment of the present application provides a coil assembly, which includes a body 10 , a stator assembly and a connecting seat 20 .
  • the body 10 has an accommodation cavity, the stator assembly is disposed in the accommodation cavity, and the stator assembly has pins.
  • the connecting seat 20 is arranged on the side wall of the main body 10, and the connecting seat 20 and the main body 10 are integrally injection-molded.
  • the connecting seat 20 has a mounting surface and a plurality of side surfaces, and the mounting surface is located on the side of the connecting seat 20 away from the main body 10.
  • the end of the connecting seat 20 protrudes from the mounting surface, the side of the connecting seat 20 is connected to the body 10 , and at least one connection between the side of the connecting seat 20 and the main body 10 is provided with a first transition structure 21 .
  • connection seat 20 and the body 10 are integrally formed during processing, and the side of the connection seat 20 is connected to the body 10, and at the same time, a first transitional structure is provided at the connection between the connection seat 20 and the body 10 twenty one.
  • the first transition structure 21 can be used to reduce the resistance at the joint between the connecting seat 20 and the body 10 when the molding compound is injected, so that the molding compound flows more smoothly, thereby reducing the overall air bubbles after final molding. Produced, thus improving the sealing and insulation performance, ensuring the quality of the coil assembly.
  • the first transition structure 21 includes a transition arc surface, the transition arc surface is tangent to the side wall where the transition arc surface of the connecting seat 20 is located, and the transition arc surface is tangent to the side wall of the body 10 .
  • the transition arc surface is respectively tangent to the side wall of the connection seat 20 and the side wall of the body 10, which is convenient for processing, and can further ensure the flow effect of the molding compound and the molding effect of the connection between the connection seat 20 and the body 10 .
  • the radius of the transition arc surface is A, and 4mm ⁇ A ⁇ 0.5mm.
  • the radius of the transition arc surface is less than 0.5 mm, the structural size of the first transition structure 21 will be too small, so that the molding compound will still have a large resistance at the first transition structure 21, affecting the flow of the molding compound .
  • the radius of the transition arc is greater than 4 mm, the size of the first transition structure 21 will be too large, which will interfere with the connecting seat 20 or other parts, and affect the normal connection between the coil assembly and other components.
  • the connecting seat 20 may be a cylinder or a polygonal column
  • the first transition structure 21 may be arranged annularly on the outer periphery of the connecting seat 20 , or partially arranged on the outer side of the connecting seat 20 .
  • connection seat 20 has a first side 22, a second side 23, a third side 24 and a fourth side, the first side 22 is opposite to the second side 23, and the third side 24 is opposite to the fourth side It is provided that the first side 22 and the second side 23 are respectively located on two sides of the connecting base 20 , and the third side 24 and the fourth side are respectively located on the top and bottom of the connecting base 20 .
  • There are multiple first transition structures 21 and first transition structures 21 are provided between the first side 22 and the body 10 , between the second side 23 and the body 10 , and between the third side 24 and the body 10 .
  • Setting a plurality of first transition structures 21 can further improve the smoothness of the molding compound flow, and ensure that there are no air bubbles at the connection between the first side 22, the second side 23, and the third side 24 of the connecting seat 20 and the body, thereby ensuring the connection
  • the processing effect of the connection between the first side 22 , the second side 23 and the third side 24 of the seat 20 and the main body improves the overall quality of the coil assembly.
  • a second transition structure 25 is also provided between the connecting seat 20 and the side wall of the main body 10, the second transition structure 25 is located between two adjacent first transition structures 21, and the second transition structure 25 is used to connect adjacent Two first transition structures 21 .
  • the second transition structure 25 can avoid gaps between two adjacent first transition structures 21, thereby further ensuring the product quality of the coil assembly and enhancing the structural strength of the coil assembly.
  • Embodiment 2 of the present application provides a coil assembly, which is different from Embodiment 1 in that: the first transition structure 21 includes a transition slope, and the transition slope and the connecting seat 20 where the transition slope is located
  • the included angle of the side is B, 180°>B ⁇ 130°.
  • Such an arrangement facilitates the processing of the coil assembly, and can make the molding compound flow more smoothly.
  • the angle between the transition bevel and the side of the connecting seat 20 where the transition bevel is located is less than 130°, the angle is too small, and the molding compound still suffers from relatively large resistance, which makes the flow of the molding compound not smooth, and there will still be some problems after molding. Bubbles are generated, and the quality of the coil assembly cannot be guaranteed.
  • Embodiment 3 of the present application provides a coil assembly.
  • the difference from Embodiment 1 is that at least one first transition structure 21 is a transition arc surface, and at least one of the remaining first transition structures 21 is for the transition slope.
  • a transition arc surface can be set between the first side 22, the second side 23 and the body 10, and a transition slope between the third side 24 and the body 10; it can also be between the first side 22, the second side 23 and the body A transition slope is provided between 10, and a transition arc surface is formed between the third side 24 and the body 10.
  • Such arrangement makes the processing of the connecting seat 20 and the main body 10 more flexible, and different structures can be set at the connection between the connecting seat 20 and the main body 10 to adapt to different usage occasions.
  • Embodiment 4 of the present application provides an electronic expansion valve, which includes the coil assembly provided in the above embodiment. After the electronic expansion valve adopts the coil assembly provided by the above embodiment, the product quality of the electronic expansion valve can be improved and the service life of the electronic expansion valve can be prolonged.
  • 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.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

La présente demande concerne un ensemble bobine et une soupape d'expansion électronique équipée de celui-ci. L'ensemble bobine comprend : un corps, qui comporte une cavité de réception ; un ensemble stator, qui est disposé dans la cavité de réception et pourvu d'une broche de contact ; et une base de liaison, disposée sur une paroi latérale du corps, formée d'un seul tenant avec le corps par moulage par injection, et dotée d'une face de montage et de multiples faces latérales, la face de montage étant située sur le côté de la base de liaison qui est opposé au corps, une extrémité de la broche de contact étant disposée sur la face de montage de manière saillante, les faces latérales de la base de liaison étant reliées au corps, et une première structure de transition étant disposée au niveau de la liaison entre au moins une face latérale de la base de liaison et le corps. La solution technique fournie dans la présente demande permet de résoudre le problème d'un mauvais effet de moulage par injection d'un ensemble bobine dans l'état de la technique.
PCT/CN2022/130407 2021-12-15 2022-11-07 Ensemble bobine et soupape d'expansion électronique équipée de celui-ci WO2023109368A1 (fr)

Applications Claiming Priority (2)

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CN202123176733.5 2021-12-15
CN202123176733.5U CN216487648U (zh) 2021-12-15 2021-12-15 线圈组件及具有其的电子膨胀阀

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WO2023109368A1 true WO2023109368A1 (fr) 2023-06-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216487648U (zh) * 2021-12-15 2022-05-10 浙江盾安人工环境股份有限公司 线圈组件及具有其的电子膨胀阀

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913661A (zh) * 2011-08-04 2013-02-06 浙江三花股份有限公司 插针包覆体及具有该插针包覆体的线圈注塑件
CN203272962U (zh) * 2013-06-06 2013-11-06 中山市港利制冷配件有限公司 电子膨胀阀的线圈结构
CN213717208U (zh) * 2020-12-14 2021-07-16 广东威灵电机制造有限公司 定子组件、电子膨胀阀及制冷设备
CN213817416U (zh) * 2020-12-14 2021-07-27 广东威灵电机制造有限公司 电子膨胀阀用定子组件、电子膨胀阀和制冷设备
CN216487648U (zh) * 2021-12-15 2022-05-10 浙江盾安人工环境股份有限公司 线圈组件及具有其的电子膨胀阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913661A (zh) * 2011-08-04 2013-02-06 浙江三花股份有限公司 插针包覆体及具有该插针包覆体的线圈注塑件
CN203272962U (zh) * 2013-06-06 2013-11-06 中山市港利制冷配件有限公司 电子膨胀阀的线圈结构
CN213717208U (zh) * 2020-12-14 2021-07-16 广东威灵电机制造有限公司 定子组件、电子膨胀阀及制冷设备
CN213817416U (zh) * 2020-12-14 2021-07-27 广东威灵电机制造有限公司 电子膨胀阀用定子组件、电子膨胀阀和制冷设备
CN216487648U (zh) * 2021-12-15 2022-05-10 浙江盾安人工环境股份有限公司 线圈组件及具有其的电子膨胀阀

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