Valve device and connecting piece

Abstract

The valve device comprises a coil assembly, a valve body and the connecting piece connecting the coil assembly and the valve body, the connecting piece comprises a connecting main body and a clamping piece located on the edge of the connecting main body, the clamping piece comprises an elastic main body part and a buckling part which are connected, the connecting main body is fixedly connected to the coil assembly, and the elastic main body part is fixedly connected to the buckling part. The buckle part is detachably connected with the valve body, and the connecting piece is configured in the mode that the elastic main body part is stressed to generate elastic deformation to drive the buckle part to move close to the connecting main body, so that the buckle part is separated from the valve body. According to the valve device, the elastic main body part is stressed to generate elastic deformation, locking and unlocking of the buckle part and the valve body are achieved, and installation and separation between the coil assembly and the valve body are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of valve devices, and particularly to a valve device and a connecting piece. Background Art

[0002] In the air conditioning system of a driving device such as a new energy vehicle, an electronic expansion valve is usually used for throttling to adjust the flow rate of the refrigerant in the refrigeration system. The electronic expansion valve generally includes a valve body and a coil assembly.

[0003] In the prior art, the installation between the valve body and the coil assembly mostly adopts a threaded connection method, and the installation process of screwing the thread is complex, increasing the labor cost and material cost. Summary of the Utility Model

[0004] One of the purposes of the utility model is to provide a valve device to solve the technical problem of complex installation of the valve device in the prior art.

[0005] One of the purposes of the utility model is to provide a connecting piece.

[0006] To achieve one of the above-mentioned utility model purposes, an embodiment of the utility model provides a valve device, including a coil assembly, a valve body, and a connecting piece connecting the coil assembly and the valve body. The connecting piece includes a connecting body and a clamping piece located at the edge of the connecting body. The clamping piece includes an elastic main body part and a clamping part connected to each other. The connecting body is fixedly connected to the coil assembly, and the clamping part is detachably connected to the valve body. The connecting piece is configured such that when the elastic main body part is stressed and undergoes elastic deformation, it drives the clamping part to move closer to the connecting body, so that the clamping part disengages from the valve body.

[0007] As a further improvement of an embodiment of the utility model, the elastic main body part includes a first sheet body, the first sheet body extends along a first direction, and the first direction has a first acute angle facing the coil assembly with respect to the normal line of the connecting body.

[0008] As a further improvement of an embodiment of the utility model, the first sheet body includes an end portion extending along the first direction and close to the coil assembly, and the end portion protrudes from the connecting end surface of the connecting body and the coil assembly.

[0009] As a further improvement of an embodiment of the utility model, the elastic main body part includes a second sheet body connecting the first sheet body and the connecting body, the second sheet body extends along a second direction, and the second direction has a second acute angle facing the valve body with respect to the normal line of the connecting body.

[0010] As a further improvement of an embodiment of the present utility model, a third included angle is formed between the first sheet-like body and the second sheet-like body, and the third included angle is less than or equal to 45°.

[0011] As a further improvement of an embodiment of the present utility model, the connecting member includes two clamping pieces provided at two side edges of the connecting body. The valve body has an installation surface facing the coil assembly, and two installation platforms provided on the installation surface and corresponding to and cooperating with the two clamping pieces. The two installation platforms are symmetrically arranged at two ends of the installation surface.

[0012] As a further improvement of an embodiment of the present utility model, each of the installation platforms includes a pair of protruding blocks arranged oppositely. Each of the protruding blocks has a sliding groove, and the buckling portion is limited in the sliding groove. The connecting member is configured such that the elastic main body portion deforms elastically under force to drive the buckling portion out of the sliding groove.

[0013] As a further improvement of an embodiment of the present utility model, each of the protruding blocks is in an inverted L shape, and the opening of the protruding block forms the sliding groove. The protruding block includes an intersecting vertical portion and a horizontal portion. The sliding groove is located within the included angle formed by the vertical portion and the horizontal portion, and the end of the clamping piece is located between a pair of the horizontal portions.

[0014] As a further improvement of an embodiment of the present utility model, the valve body includes an installation surface, and a limiting groove formed by inward depression is provided on the installation surface. The bottom of the clamping piece is limited in the limiting groove.

[0015] To achieve one of the above-mentioned utility model purposes, an embodiment of the present utility model provides a connecting member applied to a valve device. The valve device includes a coil assembly and a valve body. The connecting member is used to connect the coil assembly and the valve body. The connecting member includes a connecting body and a clamping piece located at the edge of the connecting body. The clamping piece includes a connected elastic main body portion and a buckling portion. The connecting body is fixedly connected to the coil assembly, and the buckling portion is detachably connected to the valve body. The connecting member is configured such that the elastic main body portion deforms elastically under force to drive the buckling portion to move close to the connecting body, so that the buckling portion disengages from the valve body.

[0016] Compared with the prior art, the present utility model provides a valve device. The connecting member includes a connecting body fixedly connected to the coil assembly and a clamping piece detachably connected to the valve body. The clamping piece includes an elastic main body portion and a buckling portion. The elastic main body portion deforms elastically under force and can drive the buckling portion to disengage from the valve body, facilitating the installation and separation between the coil assembly and the valve body. Description of the Drawings

[0017] Figure 1 is a schematic diagram of a valve device in an embodiment of the present utility model.

[0018] Figure 2 It is a schematic diagram of a connecting member in an embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of the cooperation between a coil assembly and a connecting member in an embodiment of the present utility model.

[0020] Figure 4 It is a schematic diagram of the cooperation between a valve body and a connecting member in an embodiment of the present utility model.

[0021] Figure 5 It is a sectional view of a valve body and a connecting member in an embodiment of the present utility model.

[0022] Figure 6 It is Figure 5 an enlarged view of the structure within the circle in Specific embodiments

[0023] The present utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and any structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are included within the protection scope of the present utility model.

[0024] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or device. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] The term "connected", "connected to" or any other variant thereof is intended to cover various relative positions of connection relationships, such that it includes direct connection or indirect connection. Among them, direct connection can be formed through a gas pipeline, and indirect connection can be a connection relationship constructed through devices such as a valve body, a sensor, etc., can be a connection relationship constructed through gas circuit components such as a brake control unit, or can be a connection relationship constructed through any other medium such as air.

[0026] Please refer to Figure 1 , which is a schematic diagram of the structure of a valve device 100 provided in an embodiment of the present utility model.

[0027] In one embodiment, the valve device 100 includes a coil assembly 20, a valve body 10, and a connecting member 30 connecting the coil assembly 20 and the valve body 10.

[0028] Combined with Figure 2 As shown, the connecting member 30 includes a connecting body 31 and a clamping piece 32 located at the edge of the connecting body 31. The clamping piece 32 includes an elastic main body portion 320 and a clamping portion 323 connected to each other. The connecting body 31 is fixedly connected to the coil assembly 20, and the clamping portion 323 is detachably connected to the valve body 10. The connecting member 30 is configured such that when the elastic main body portion 320 is stressed and elastically deformed, it drives the clamping portion 323 to move closer to the connecting body 31, so that the clamping portion 323 is disengaged from the valve body 10.

[0029] This application does not limit the type of the specific valve device 100, which may be an expansion valve, a reversing valve, a multi-way valve, etc. In other words, the connecting member 30 provided in this application can be applied not only to the expansion valve, but also to valve devices such as reversing valves and multi-way valves.

[0030] The user applies a force to the connecting member 30, causing the elastic main body portion 320 to be elastically deformed under the force, thereby driving the clamping portion 323 to disengage from the valve body 10, which facilitates the installation and separation between the coil assembly 20 and the valve body 10.

[0031] In a specific embodiment, the connecting body 31 is circularly arranged to adapt to the shape of the coil assembly 20. In other embodiments, the connecting body 31 can also be arranged in other shapes to match the shape of the coil assembly 20. The connecting body 31 includes a first positioning portion 311 provided on the outer circle and an adaptation portion 312 provided on the inner circle.

[0032] Combined with Figure 3 As shown, the coil assembly 20 is provided with a second positioning portion 21 facing the connecting member 30, and the first positioning portion 311 and the second positioning portion 21 are in positioning cooperation. The first positioning portion 311 and the second positioning portion 21 can be selectively set as the cooperation of a positioning hole and a positioning post. After the preliminary positioning of the positioning hole and the positioning post, hot riveting is performed to make the connection between the positioning post and the positioning hole tighter and more stable.

[0033] The adaptation portion 312 protrudes a certain distance away from the coil assembly 20 to adapt to the shape of the coil assembly 20, making it more fitting to the coil assembly 20 and facilitating the stable installation of the coil assembly 20 and the connecting member 30.

[0034] In one embodiment, the connecting member 30 includes at least two clamping pieces 32 located on the two symmetric side edges of the connecting body 10. In other embodiments, the connecting member 30 can also be further provided with a plurality of evenly distributed clamping pieces 32, or only a single clamping piece 32 on one side.

[0035] In one embodiment, the elastic main body portion 320 includes a first sheet-like body 321 that extends in a first direction. The first direction has a first acute angle a facing the coil assembly 20 with respect to the normal line L of the connection main body.

[0036] The buckle portions 323 are provided on both side edges of the first sheet-like body 321. The elastic deformation space of the elastic main body portion 320 includes the space of the first angle a. When a force is applied to the elastic main body portion 320, the first sheet-like body 321 moves towards the connection main body 31, driving the buckle portions 323 to move. One end of the first sheet-like body 321 can be directly connected to the edge of the connection main body 31.

[0037] In one embodiment, the elastic main body portion 320 includes a second sheet-like body 322 connecting the first sheet-like body 321 and the connection main body 31. The second sheet-like body 322 extends in a second direction, and the second direction has a second acute angle b facing the valve body 10 with respect to the normal line L of the connection main body 31. There is a third angle c between the first sheet-like body 321 and the second sheet-like body 322.

[0038] Combined Figures 5 - 6 As shown, the first sheet-like body 321 is connected to the edge of the connection main body 31 through the second sheet-like body 322, increasing the elasticity of the elastic main body portion 320. The buckle portions 323 are provided on both side edges of the first sheet-like body 321. The elastic deformation space of the elastic main body portion 320 can include the space of the second angle b and the space of the third angle c. In practical applications, since the second sheet-like body 322 abuts against the inner wall surface of the following limiting groove 102 towards the connection main body 31, it cannot further undergo elastic deformation.

[0039] In this embodiment, the elastic main body portion 320 has a V-shaped longitudinal section, and the third angle c is less than or equal to 45°.

[0040] In one embodiment, the first sheet-like body 321 includes an end portion that extends in the first direction and is close to the coil assembly 20. The end portion protrudes from the connection end surface of the connection main body 10 and the coil assembly 20 to facilitate the application of force.

[0041] The end portion of the clamping piece 32 is the end portion of the elastic main body portion 320 and also the end portion of the first sheet-like body 321. The end portion of the clamping piece 32 is formed as a force application operation end. The force application operation end protrudes a certain distance towards the coil assembly 20, which can increase the operation space, extend the force arm, and facilitate the application of force.

[0042] In practice, the user can pinch the ends of the two snap pieces 32, causing the elastic main body 320 to elastically deform toward the connection main body 31, thereby driving the snap portion 323 to disengage from the valve body 10.

[0043] In one embodiment, the connecting member 30 includes two snap pieces 32 provided on both side edges of the connection main body 31. The valve body 10 has an installation surface 101 facing the coil assembly 20 and two installation platforms 40 provided on the installation surface and corresponding to and cooperating with the two snap pieces 32. The two installation platforms 40 are symmetrically arranged at both ends of the installation surface 101.

[0044] Combined with Figures 4 - 5 As shown, in a specific embodiment, the installation surface 101 is rectangular, and the two installation platforms 40 are located at both ends of the diagonal of the installation surface 101. The long distance in the diagonal direction can provide more positions for setting the installation platforms 40. The two snap pieces 32 are snapped onto the installation platforms 40. After pinching the ends of the snap pieces 32 along the first diagonal direction of the installation surface 101, the snap pieces 32 are separated from the installation platforms 40.

[0045] In one embodiment, each installation platform 40 includes a pair of protruding blocks 41 arranged oppositely. Each protruding block 41 has a sliding groove 410. The snap portion 323 is limited in the sliding groove 410. The connecting member 30 is configured such that the elastic main body 320 deforms elastically under force to drive the snap portion 323 to slide out of the sliding groove 410.

[0046] A pair of the protruding blocks 41 are symmetrically arranged with respect to the first diagonal direction of the installation surface 101. A receiving space is formed between the pair of protruding blocks 41 to receive a part of the snap piece 32, specifically the upper half of the first sheet-like body 321. The snap portion 323 is provided on the upper half of the first sheet-like body 321 and is located on both sides of the first sheet-like body 321. The sliding groove 410 extends along a direction parallel to the first diagonal direction, and the moving direction of the snap portion 323 in the sliding groove toward the connection main body 10 is also parallel to the first diagonal direction.

[0047] When a force is applied to the end of the first sheet-like body 321, the first sheet-like body 321 drives the snap portion 323 to slide along the sliding groove 410 and further slide out of the sliding groove 410, and the locking relationship between the first sheet-like body 321 and the protruding block 41 is released.

[0048] Each protruding block 41 is in an inverted L shape, and the opening of the protruding block 41 forms the sliding groove 410. The protruding block 41 includes an intersecting vertical portion 412 and a horizontal portion 411. The sliding groove 410 is located within the angle formed by the vertical portion 412 and the horizontal portion 411, and the end of the snap piece 32 is located between the pair of horizontal portions 411.

[0049] The horizontal portion 411 is provided with an inclined guiding surface facing the top corner of the connecting body. The buckling portion 323 is also in an inclined state in the initial state. The buckling portion 323 cooperates with the guiding surface to guide the installation of the clamping piece 32.

[0050] The buckling portion 323 is limited vertically between the horizontal portion 411 and the mounting surface 101, and the two buckling portions 323 are limited between the two vertical portions 412 in a direction perpendicular to the first diagonal line. The buckling portion 323 has a relatively free movement route in the direction of the first diagonal line.

[0051] In one embodiment, the mounting surface 101 is provided with a limiting groove 102 formed by inward depression, and the bottom of the clamping piece 32 is limited in the limiting groove 102. The clamping piece 32 has a V-shaped longitudinal section, and its lower half abuts in the limiting groove 102. During the actual installation process, through the limiting cooperation between the lower half of the clamping piece 32 and the limiting groove 102, the clamping piece 32 is first preliminarily positioned and cooperated with the valve body 10, and then the buckling portion 323 is further used to realize the clamping connection with the valve body 10.

[0052] In summary, in the specific embodiment, the connecting body 31 is first fixedly connected to the coil assembly 20 through the first positioning portion 311 and the second positioning portion 21, and then the coil assembly 20 is detachably connected to the valve body 10 through the connecting member 30. Specifically, the coil assembly 20 and the connecting member 30 are assembled together towards the valve body 10. The guiding surface of the horizontal portion 411 abuts against the buckling portion 323, causing the elastic main body portion 320 to undergo elastic deformation. The buckling portion 323 gradually moves downward, and the bottom of the clamping piece 32 moves into the limiting groove 102. When the buckling portion 323 moves downward to the lower part of the horizontal portion 411, since it no longer receives the abutting force of the horizontal portion 411, the elastic main body portion 320 returns to its original shape, and the buckling portion 323 is clamped into the sliding groove 410.

[0053] When it is necessary to disassemble the coil assembly 20 and the valve body 10, pinch the end of the clamping piece 32, and the elastic main body portion 320 undergoes elastic deformation. The elastic main body portion 320 moves towards the connecting body 32, driving the buckling portion 323 to move towards the connecting body 32 in the sliding groove 410 along the first diagonal line to slide out of the sliding groove 410. In this way, the clamping piece 32 moves out of the mounting table 40 and then moves upward out of the limiting groove 102, and the connecting member 30 and the coil assembly 20 are separated from the valve body 10 together.

[0054] The present utility model also separately protects the connecting member 30, and the connecting member 30 is applied to the valve device 100 described in any of the above technical solutions.

[0055] Specifically, a connector applied to a valve device, the valve device includes a coil assembly 20 and a valve body 10, the connector is used to connect the coil assembly and the valve body, the connector includes a connection main body 31 and a clamping piece 32 located at the edge of the connection main body, the clamping piece includes a connected elastic main body part 320 and a clamping part 323, the connection main body is fixedly connected to the coil assembly, the clamping part is detachably connected to the valve body, and the connector is configured such that: when the elastic main body part is stressed, it undergoes elastic deformation and drives the clamping part to move closer to the connection main body, so that the clamping part disengages from the valve body.

[0056] The beneficial effect of the present utility model is that: when the elastic main body part 320 is stressed, it undergoes elastic deformation and drives the clamping part 323 to move closer to the connection main body 31, so that the clamping part 323 disengages from the valve body 10, facilitating the installation and separation between the coil assembly 20 and the valve body 10.

[0057] It can be formed corresponding to any of the technical solutions provided above, and will not be elaborated here.

[0058] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0059] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present utility model, and they are not intended to limit the protection scope of the present utility model. Any equivalent embodiments or changes made without departing from the technical spirit of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve device (100) includes a coil assembly (20), a valve body (10), and a connecting member (30) connecting the coil assembly and the valve body, characterized in that, The connecting member includes a connecting body (31) and a clamping piece (32) located at the edge of the connecting body. The clamping piece includes an elastic main body portion (320) and a clamping portion (323) connected to each other. The connecting body is fixedly connected to the coil assembly, and the clamping portion is detachably connected to the valve body. The connecting member is configured such that when the elastic main body portion is stressed and undergoes elastic deformation, it drives the clamping portion to move closer to the connecting body, so that the clamping portion disengages from the valve body.

2. The valve device according to claim 1, wherein, The elastic main body portion includes a first sheet-like body (321), the first sheet-like body extends in a first direction, and there is a first angle (a) facing the coil assembly between the first direction and the normal line of the connecting body, and the first angle is an acute angle.

3. The valve device according to claim 2, characterized in that, The first sheet-like body includes an end portion extending in the first direction and close to the coil assembly, and the end portion protrudes from the connecting end surface of the connecting body and the coil assembly.

4. The valve device according to claim 2, characterized in that, The elastic main body portion includes a second sheet-like body (322) connecting the first sheet-like body and the connecting body. The second sheet-like body extends in a second direction, and there is a second angle (b) facing the valve body between the second direction and the normal line of the connecting body, and the second angle is an acute angle.

5. The valve device according to claim 4, characterized in that, There is a third angle (c) between the first sheet-like body and the second sheet-like body, and the third angle is less than or equal to 45°.

6. The valve device according to claim 1, characterized in that, The connecting member includes two clamping pieces provided at the edges on both sides of the connecting body. The valve body has a mounting surface (101) facing the coil assembly, and two mounting platforms (40) provided on the mounting surface and corresponding to and cooperating with the two clamping pieces. The two mounting platforms are symmetrically arranged at both ends of the mounting surface.

7. The valve device according to claim 6, characterized in that, Each mounting platform includes a pair of protruding blocks (41) arranged oppositely, and each protruding block has a sliding groove (410). The clamping portion is limited in the sliding groove. The connecting member is configured such that when the elastic main body portion is stressed and undergoes elastic deformation, it drives the clamping portion to slide out of the sliding groove.

8. The valve device according to claim 7, characterized in that, Each protruding block is in an inverted L shape, and the opening of the protruding block forms the sliding groove. The protruding block includes an intersecting vertical portion (412) and a horizontal portion (411). The sliding groove is located within the angle formed by the vertical portion and the horizontal portion, and the end of the clamping piece is located between a pair of the horizontal portions.

9. The valve device according to claim 1, characterized in that, The valve body includes a mounting surface, and a limiting groove (102) is formed by inward depression on the mounting surface. The bottom of the clamping piece is limited in the limiting groove.

10. A connecting member applied to a valve device, the valve device comprising a coil assembly (20) and a valve body (10), the connecting member being used for connecting the coil assembly and the valve body, characterized in that, The connecting member includes a connecting body (31) and a clamping piece (32) located at the edge of the connecting body. The clamping piece includes an elastic main body portion (320) and a clamping portion (323) connected to each other. The connecting body is fixedly connected to the coil assembly, and the clamping portion is detachably connected to the valve body. The connecting member is configured such that when the elastic main body portion is stressed and undergoes elastic deformation, it drives the clamping portion to move closer to the connecting body, so that the clamping portion disengages from the valve body.

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