Electric valve

Abstract

The utility model provides an electrically operated valve which comprises a valve seat, a valve core, a valve core, a valve core, a valve core, a valve core, a valve core and a valve core, and the valve core is provided with a valve cavity, a mounting socket and a fixing protrusion, at least part of the structure of the valve element assembly is mounted in the valve cavity through the mounting insertion opening; the coil assembly is arranged on the valve element assembly in a sleeving manner; the fixing assembly comprises a base body, a connecting piece and a clamping piece, the base body is fixedly connected with the coil assembly, and the clamping piece and the fixing protrusion are clamped and limited. According to the electrically operated valve, the scheme that the coil assembly and the valve seat are connected through connecting screws in the prior art is omitted, the number of parts of the electrically operated valve is reduced, the material cost is reduced, the assembling structure of the electrically operated valve is simpler, the assembling procedure can be simplified, and the assembling efficiency can be improved; and meanwhile, the integration level of the electric valve is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to an electric valve. Background Art

[0002] Electric valves are mostly used to adjust the flow of refrigerant in refrigeration systems. The working principle of common electric valves is that the coil assembly generates a rotating magnetic field to drive the rotor to rotate. When the rotor rotates, it drives the valve needle to move, thereby adjusting the opening of the valve port to control the flow of refrigerant.

[0003] At present, a common method for fixing the coil assembly of an electric valve is to provide a screw mounting hole on the fixing assembly and fix the coil assembly and the valve seat by means of screws.

[0004] Considering that the current vehicle thermal management system tends to be integrated, the installation method of the electric valve is required to be simple and convenient, and the screw installation method undoubtedly increases the installation time and material costs, so this installation method needs to be improved. Utility Model Content

[0005] In view of the above problems, the utility model provides an electric valve, which can simplify the assembly process, improve assembly efficiency and reduce costs.

[0006] The utility model provides an electric valve, comprising: a valve seat, the valve seat having a valve cavity, a mounting socket connected to the valve cavity, and a fixing protrusion; a valve core assembly, at least part of the structure of the valve core assembly is installed in the valve cavity via the mounting socket; a coil assembly, the coil assembly is sleeved on the valve core assembly; a fixing assembly, the fixing assembly comprises a base, a connecting piece and a clamping piece, the base is fixedly connected to the coil assembly, the clamping piece is clamped and limited with the fixing protrusion, and the connecting piece is used to connect the clamping piece and the base.

[0007] The electric valve provided by the utility model provides a fixing protrusion on the valve seat and a clamping piece on the coil assembly, and the coil assembly is connected to the valve seat through the cooperation of the clamping piece and the fixing protrusion, thereby eliminating the solution of connecting the coil assembly and the valve seat with connecting screws in the prior art, reducing the number of parts of the electric valve, reducing material costs, and making the assembly structure of the electric valve simpler, which can simplify the assembly process, improve assembly efficiency, and also improve the integration of the electric valve itself.

[0008] In some embodiments, the fixing protrusion is provided on the side wall of the valve seat; the coil assembly and the valve seat are arranged relatively to each other along the axial direction of the valve core assembly, the base is connected to one end of the coil assembly facing the valve seat, and the clamping piece is located on the side of the valve seat to clamp with the fixing protrusion.

[0009] In some embodiments, the clamping member includes: a first section and a second section, the first section extends along the axial direction of the valve core assembly, the first section is respectively connected to the connecting member and the second section, the extension direction of the second section is different from that of the first section, and the second section abuts against the fixed protrusion on one side along its own thickness direction.

[0010] In some embodiments, there is at least one fixing protrusion and multiple clamps, the second section of each clamp is suitable for abutting against one side of the fixing protrusion along the circumference of the valve seat, and the second sections of the multiple clamps exert opposite forces on the fixing protrusion.

[0011] In some embodiments, there is one fixing protrusion and two clamping parts, and the two clamping parts are symmetrically distributed on opposite sides of the fixing protrusion along the circumference of the valve seat, so that the second sections of the two clamping parts are clamped with the fixing protrusion together.

[0012] In some embodiments, there are two fixing protrusions, which are arranged at intervals along the circumference of the valve seat, and there are two clamping parts corresponding to the fixing protrusions one by one, and the second sections of the two clamping parts respectively abut against the two fixing protrusions on one side facing each other.

[0013] In some embodiments, the second section of the clamping member extends along the circumference of the fixing protrusion to define a clamping slot, and the fixing protrusion is clamped in the clamping slot.

[0014] In some embodiments, the second segment is formed as an arc segment.

[0015] In some embodiments, the clamping member further includes: a latch portion, the latch portion is disposed at an end of the second section away from the first section, and the free end of the latch portion extends in a direction deviating from the opening of the clamping slot.

[0016] In some embodiments, there are two fixing protrusions, which are arranged at intervals along the circumference of the valve seat, and there are two clips corresponding to the fixing protrusions one by one, and the two clips include a first clip and a second clip, wherein the second section of the first clip abuts against the side of the corresponding fixing protrusion facing away from the coil assembly, and the second section of the second clip abuts against the side of the corresponding fixing protrusion facing the coil assembly.

[0017] In some embodiments, the length of the first section of the first clamping member is greater than the length of the first section of the second clamping member, and the second sections of the first clamping member and the second clamping member are respectively connected to the free ends of their respective first sections.

[0018] In some embodiments, the angle between the second segment of the first clamping member and the first segment is less than or equal to 90°, and the angle between the second segment of the second clamping member and the first segment is greater than or equal to 90°.

[0019] In some embodiments, the fixing protrusion and the valve seat are an integrally formed part; or, the fixing protrusion and the valve seat are detachably connected.

[0020] In some embodiments, a plurality of connecting columns are provided on the side of the coil assembly facing the valve seat, and the plurality of connecting columns are arranged at intervals along the circumference of the valve core assembly. A plurality of connecting holes adapted to the connecting columns are provided on the base, and the connecting columns are passed through the connecting holes and connected to the base; the valve core assembly is passed through the base.

[0021] In some embodiments, the fixing assembly also includes a connecting piece, one end of which is connected to the base, and the other end of which extends radially outward along the base. The clamping piece is arranged on opposite sides of the connecting piece along the circumference of the base and is spaced apart from the base.

[0022] In some embodiments, notches are formed on two opposite edges of the connecting member along the circumference of the base to increase the elasticity of the connecting member, and the clamping member and the base are respectively located on two sides of the notch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of an electric valve according to a first embodiment of the utility model from one angle;

[0025] Figure 2 This is a schematic structural diagram of the electric valve of the first embodiment of the utility model from another angle;

[0026] Figure 3 This is a schematic structural diagram of a valve seat of an electric valve according to Embodiment 1 of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of a fixing assembly of an electric valve according to a first embodiment of the utility model;

[0028] Figure 5 This is a schematic structural diagram of an electric valve according to a second embodiment of the utility model from one angle;

[0029] Figure 6 This is a schematic diagram of the coordination between the coil assembly and the valve seat of the electric valve of the second embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram showing the coordination of the coil assembly and the fixing assembly of the electric valve of the second embodiment of the utility model at an angle;

[0031] Figure 8 This is a schematic diagram showing the coordination of the coil assembly and the fixing assembly of the electric valve of the second embodiment of the utility model from another angle;

[0032] Fig. 9 This is a schematic structural diagram of an electric valve according to a third embodiment of the present utility model from one angle;

[0033] Fig.10 This is a schematic structural diagram of the electric valve of the third embodiment of the utility model from another angle;

[0034] Fig.11 This is an exploded view of the electric valve of the third embodiment of the utility model;

[0035] Fig.12 This is a schematic diagram of the structure of the fixing assembly of the electric valve of the third embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 100-electric valve;

[0038] 10-valve seat; 11-valve cavity; 12-fixed protrusion; 12a-first fixed protrusion; 12b-second fixed protrusion;

[0039] 20-valve core assembly;

[0040] 30-coil assembly; 301-connecting column;

[0041] 40-fixed component;

[0042] 401-base; 4011-connection hole;

[0043] 402-connecting piece; 4021-notch portion;

[0044] 403 - snap-fit ​​part; 403a - first snap-fit ​​part; 403b - second snap-fit ​​part; 4031 - first section; 4032 - second section; 4033 - buckle handle. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0046] Reference below Figure 1-Figure 12 Some specific embodiments of the electric valve 100 of the present invention are described.

[0047] Embodiment 1,

[0048] Combination Figure 1-Figure 4 The electric valve 100 of this embodiment may be an electronic expansion valve or other types of electric valves 100. Specifically, the electric valve 100 includes a valve seat 10, a valve core assembly 20, a coil assembly 30 and a fixing assembly 40.

[0049] Among them, Figure 3 As shown, the valve seat 10 has a valve cavity 11 , a liquid inlet channel, a liquid outlet channel and a mounting socket, the liquid inlet channel, the liquid outlet channel and the mounting socket are all connected to the valve cavity 11 , and the valve seat 10 is provided with a fixing protrusion 12 .

[0050] Part of the axial structure of the valve core assembly 20 is installed in the valve cavity 11 via the mounting socket. The coil assembly 30 is sleeved on the valve core assembly 20 and is arranged opposite to the valve seat 10 along the axial direction of the valve core assembly 20. The coil assembly 30 can drive the valve core assembly 20 to move so as to connect or disconnect the liquid inlet channel and the liquid outlet channel, and control the flow rate of the fluid flowing through the valve core assembly 20.

[0051] The fixing component 40 includes a base 401 , a connector 402 and a clamping component 403 , wherein the base 401 is fixedly connected to the coil assembly 30 , the clamping component 403 and the fixing protrusion 12 are clamped and limited, and the connector 402 is used to connect the base 401 and the clamping component 403 .

[0052] For example, the valve seat 10 may be a square valve seat 10 or a cylindrical valve seat 10. The valve cavity 11 may extend along the axial direction of the valve core assembly 20. In this case, the liquid inlet channel and the liquid outlet channel may be formed on the side wall of the valve seat 10, and the mounting socket is located at the top of the valve cavity 11. The fixing protrusion 12 may be provided on the peripheral wall of the valve seat 10, and the position of the clamping member 403 is adapted to the fixing protrusion 12.

[0053] The electric valve 100 provided in this embodiment is provided with a fixing protrusion 12 on the valve seat 10, and a clamping piece 403 is provided on the coil assembly 30. The clamping piece 403 cooperates with the fixing protrusion 12 to connect the coil assembly 30 to the valve seat 10, thereby eliminating the solution of connecting the coil assembly and the valve seat with connecting screws in the prior art, reducing the number of parts of the electric valve 100, reducing material costs, and making the assembly structure of the electric valve 100 simpler, which can simplify the assembly process, improve assembly efficiency, and also improve the integration of the electric valve 100 itself.

[0054] refer to Figure 1 , Figure 5 and Fig. 9 , at least one of the fixing protrusions 12 and the clamping members 403 is plural in number, for example, the fixing assembly 40 may be provided with a plurality of clamping members 403; or, the valve seat 10 may be provided with a plurality of fixing protrusions 12; or, the fixing assembly 40 may be provided with a plurality of clamping members 403, the valve seat 10 may be provided with a plurality of fixing protrusions 12, and each clamping member 403 cooperates with the corresponding fixing protrusion 12. By setting at least one of the fixing protrusions 12 and the clamping members 403 to be plural in number, the restriction on the assembly angle of the fixing assembly 40 relative to the valve seat 10 can be reduced, thereby facilitating assembly.

[0055] In some possible examples, the valve core assembly 20 includes a housing, a rotor, a transmission assembly and a valve needle. Among them, the housing is cylindrical, and the axial part of the housing is pluggable in the valve cavity 11 via a mounting socket, and the rotor, the transmission assembly and the valve needle are all arranged in the inner cavity of the housing. The rotor drives the valve needle to move through the transmission assembly to control the on and off of the liquid inlet channel and the liquid outlet channel, that is, the transmission assembly is respectively connected to the rotor and the valve needle to realize the movement of the valve needle. The transmission assembly is a screw nut mechanism, and the coil assembly 30 is suitable for driving the rotor to rotate. For example, the coil assembly 30 generates a rotating magnetic field through a pulse control coil, thereby controlling the rotation of the rotor. Of course, this embodiment does not limit this, and the internal structure of the valve core assembly 20 can be flexibly adjusted according to actual needs to meet the fluid flow control requirements under different working conditions.

[0056] refer to Figure 1-Figure 3The fixing protrusion 12 can be arranged on the side wall of the valve seat 10. The fixing protrusion 12 can be in a square shape, a cylindrical shape or any other shape. The arrangement and specific structure of the fixing protrusion 12 on the valve seat 10 can be reasonably set according to actual needs. The base 401 is connected to the end of the coil assembly 30 facing the valve seat 10. There are multiple clips 403, and the multiple clips 403 are arranged at intervals on the base 401. Moreover, the clips 403 are located on the side of the valve seat 10 to connect with the fixing protrusion 12. The base 401 is provided to facilitate the connection between the fixing assembly 40 and the coil assembly 30. At the same time, the base 401 can provide support for the clips 403. The overall structure is relatively simple and easy to process and assemble.

[0057] Combination Figure 1 and Figure 2 , the clamping member 403 is plate-shaped, and the clamping member 403 may include: a first section 4031 and a second section 4032. The first section 4031 extends along the axial direction of the valve core assembly 20, and the extension direction of the second section 4032 is different from that of the first section 4031. The first section 4031 is connected to the connecting member 402 and the second section 4032 respectively. For example, the second section 4032 may have a certain angle with the first section 4031, or the second section 4032 may also be formed in an arc shape or other shapes. In addition, one side of the second section 4032 along its thickness direction abuts against the fixed protrusion 12, for example, the second section 4032 may abut against one side of the fixed protrusion 12 along the axial direction of the valve core assembly 20, or may abut against one side of the fixed protrusion 12 along the circumferential direction of the valve seat 10. Through the cooperation of multiple clamping members 403 and the fixed protrusion 12, the stable connection between the coil assembly 30 and the valve seat 10 can be achieved, and the structure of the clamping member 403 is simple and reliable.

[0058] refer to Figure 1 , there is one fixing protrusion 12, and there can be two clamping members 403, the two clamping members 403 are respectively a first clamping member 403a and a second clamping member 403b, the first clamping member 403a and the second clamping member 403b are symmetrically distributed on opposite sides of the fixing protrusion 12 along the circumference of the valve seat 10, so that the second sections 4032 of the two clamping members 403 are respectively abutted against the two sides of the fixing protrusion 12, in other words, the second sections 4032 of the two clamping members 403 are clamped together with the fixing protrusion 12 to achieve a stable connection between the coil assembly 30 and the valve seat 10. In this way, the matching mode of the clamping member 403 and the fixing protrusion 12 is simple and reliable, and easy to disassemble and assemble.

[0059] It should be noted that, in this embodiment, two clamping members 403 are clamped together with a fixed protrusion 12 to achieve a stable connection between the coil assembly 30 and the valve seat 10. In the case of adopting this connection method, a plurality of fixed protrusions 12 may be provided on the valve seat 10. For example, the plurality of fixed protrusions 12 may be distributed along the circumference of the valve seat 1. The structure composed of the two clamping members 403 may be clamped and matched with any one of the plurality of fixed protrusions 12. In this way, during the assembly process, the restriction on the matching angle between the fixed assembly 40 and the valve seat 1 may be avoided. The two clamping members 403 may be matched with the fixed protrusions 12 in any direction, which helps to improve the assembly efficiency.

[0060] refer to Figure 1 , the spacing between the first sections 4031 of the plurality of clamping members 403 is smaller than the maximum width of the fixed protrusion 12 in the circumferential direction of the valve seat 10, where the maximum width of the fixed protrusion 12 in the circumferential direction of the valve seat 10 refers to the spacing between the two most distant parts of the fixed protrusion 12 in the circumferential direction of the valve seat 10. For example, when the fixed protrusion 12 is square, the spacing between the first sections 4031 of the two clamping members 403 is smaller than the width of the fixed protrusion 12 in the circumferential direction of the valve seat 10, and when the fixed protrusion 12 is circular, the spacing between the first sections 4031 of the two clamping members 403 is smaller than the diameter of the fixed protrusion 12. The second sections 4032 of the plurality of clamping members 403 are concave in the direction of their own thickness and away from each other to define a clamping groove, in which the fixed protrusion 12 is clamped, for example, the groove wall of the clamping groove can be composed of a plurality of straight walls connected in sequence, or the groove wall of the clamping groove can be arc-shaped. In this way, each second section 4032 cooperates with a portion of the peripheral wall of the fixing protrusion 12. Through the cooperation between the second sections 4032 of multiple clips 403 and the fixing protrusion 12, the contact area between the fixing protrusion 12 and the clips 403 can be increased, thereby further enhancing the cooperation stability and reliability between the clips 403 and the fixing protrusion 12.

[0061] In addition, the spacing between the first sections 4031 of the multiple clips 403 is smaller than the maximum width of the fixed protrusion 12 in the circumferential direction of the valve seat 10, so that when the second sections 4032 are recessed outward, the farthest spacing between two opposite second sections 4032 can be just smaller than or equal to the maximum dimension of the fixed protrusion 12 in the circumferential direction of the valve seat 10, so that the second sections 4032 act on the fixed protrusion 12 with a certain pre-pressure to form a reliable fit with the fixed protrusion 12.

[0062] refer to Figure 1The second section 4032 is formed into an arc shape that matches the peripheral wall of the fixing protrusion 12. In this way, when the clamping member 403 and the fixing protrusion 12 are assembled, when the second section 4032 begins to contact the fixing protrusion 12, the fixing protrusion 12 can be automatically inserted between the two second sections 4032, making the assembly operation simple and labor-saving. In addition, the structure of the clamping member 403 is simpler and easy to process and manufacture.

[0063] Optionally, the fixing protrusion 12 and the valve seat 10 are integrally formed, so that the connection strength between the fixing protrusion 12 and the valve seat 10 is higher. After the clamping member 403 and the fixing protrusion 12 cooperate with each other, it is beneficial to improve the assembly stability of the coil assembly 30 and the valve seat 10.

[0064] Alternatively, the fixing protrusion 12 and the valve seat 10 are detachably connected, for example, the fixing protrusion 12 may be a pin inserted into the surface of the valve seat 10, or the fixing protrusion 12 may be a fastener threadedly matched with the valve seat 10. In this way, the fixing protrusion 12 is not directly processed on the valve seat 10, which can simplify the structure of the valve seat 10, and the assembly method of the valve seat 10 and the fixing protrusion 12 is simple. Even if the fixing protrusion 12 is damaged, it can be replaced, which reduces the maintenance cost.

[0065] refer to Figure 1 and Figure 4 , a plurality of connecting posts 301 are provided on the side of the coil assembly 30 facing the valve seat 10. For example, the connecting posts 301 can be formed on the housing of the coil assembly 30. The plurality of connecting posts 301 can be arranged at intervals along the circumference of the valve core assembly 20. Each connecting post 301 extends along the axial direction of the valve core assembly 20. The base 401 is an annular fixing plate. The base 401 is sleeved on the valve core assembly 20. The base 401 is provided with a plurality of connecting holes 4011 adapted to the connecting posts 301. The connecting posts 301 are passed through the connecting holes 4011 and connected to the base 401. Preferably, the connecting posts 301 can be six or eight to facilitate the subsequent angle adjustment of the fixing assembly 40. During assembly, the connecting posts 301 can be inserted into the corresponding connecting holes 4011 to realize the assembly of the coil assembly 30 and the fixing assembly 40, so that the coil assembly 30 and the fixing assembly 40 can be matched reliably and easily assembled.

[0066] In order to further enhance the connection strength between the fixing component 40 and the coil component 30, in the present embodiment, the connecting column 301 is connected to the base 401 by hot melt, that is, after the connecting column 301 passes through the connecting hole 4011 of the base 401, it is connected to the base 401 by hot melt, so that the coil component 30 and the fixing component 40 form an integrated structure with higher connection strength and reliability.

[0067] refer to Figure 4The connecting member 402 and the base 401 are in the same plane, one end of the connecting member 402 is connected to the base 401, and the other end extends radially outward, and the clamping member 403 is connected to the connecting member 402 and is spaced apart from the base 401. Figure 4 As shown, the base 401 is generally an annular fixed plate, the connecting member 402 is located on one side of the base 401 and extends radially outwardly of the base 401, the connecting member 402 and the base 401 are transitioned in an arc, and the first section 4031 of the clamping member 403 is connected to the end of the connecting member 402 away from the base 401. By providing the connecting member 402, since the connecting member 402 extends to the side of the valve seat 10, the clamping member 403 can be arranged on the side of the valve seat 10, so as to facilitate the cooperation between the clamping member 403 and the fixing protrusion 12. In addition, the overall structure is relatively simple and easy to manufacture.

[0068] refer to Figure 4 The plurality of clamping members 403 are disposed on opposite sides of the connecting member 402 along the circumference of the base 401. The plurality of clamping members 403 are spaced apart, which helps to improve the matching stability between the plurality of clamping members 403 and the fixing protrusion 12.

[0069] refer to Figure 4 The base 401, the connecting member 402 and the clamping member 403 are an integrally formed part, that is, the fixing assembly 40 is an integrally formed part. In this way, the structural strength of the fixing assembly 40 is relatively high, and the structural stability of the electric valve 100 after assembly can be ensured.

[0070] Embodiment 2:

[0071] refer to Figure 5-Figure 8 The main structure of the electric valve 100 in this embodiment is the same as that of the electric valve 100 in the first embodiment, and the similarities are not repeated here. Only the differences between the electric valve 100 in this embodiment and the electric valve 100 in the first embodiment are described below.

[0072] In this embodiment, there are two fixing protrusions 12, which are arranged on the valve seat 10 at intervals along the circumference of the valve seat 10, there are two clamping members 403, the clamping members 403 correspond to the fixing protrusions 12 one by one, and the second sections 4032 of the two clamping members 403 respectively abut against the two fixing protrusions 12 facing each other. For example, the two fixing protrusions 12 include a first fixing protrusion 12a and a second fixing protrusion 12b, and the two clamping members 403 include a first clamping member 403a and a second clamping member 403b, wherein the second section 4032 of the first clamping member 403a abuts against the side of the first fixing protrusion 12a facing the second fixing protrusion 12b, and the second section 4032 of the second clamping member 403b abuts against the side of the second fixing protrusion 12b facing the first fixing protrusion 12a. That is, by respectively cooperating with the two clamping members 403 and the two fixing protrusions 12, a stable connection between the coil assembly 30 and the valve seat 10 is achieved.

[0073] Thus, the electric valve 100 provided in this embodiment realizes a stable connection between the coil assembly 30 and the valve seat 10 by respectively cooperating with the two fixing protrusions 12 through the two clamping members 403. The solution of connecting the coil assembly and the valve seat by connecting screws in the prior art is omitted, the number of parts of the electric valve 100 is reduced, the material cost is reduced, and the assembly structure of the electric valve 100 is simpler, which can simplify the assembly process, improve the assembly efficiency, and also improve the integration of the electric valve 100 itself.

[0074] Of course, in other alternative embodiments, the second section 4032 of the first clamping member 403a can abut against the side of the first fixing protrusion 12a facing away from the second fixing protrusion 12b, and the second section 4032 of the second clamping member 403b can abut against the side of the second fixing protrusion 12b facing away from the first fixing protrusion 12a. In this way, a stable connection between the coil assembly 30 and the valve seat 10 can also be achieved.

[0075] refer to Figure 5 and Figure 7 The clamping member 403 may further include: a buckle portion 4033, the buckle portion 4033 is disposed at an end of the second section 4032 away from the first section 4031, and the free end of the buckle portion 4033 extends in a direction away from the opening of the clamping slot. Figure 5As shown, for example, the free end of the hand portion 4033 of the first clamping member 403a can extend along the axial direction of the valve core assembly 20 and tilted toward the second clamping member 403b, and the free end of the hand portion 4033 of the second clamping member 403b can extend along the axial direction of the valve core assembly 20 and tilted toward the first clamping member 403a. On the one hand, during the assembly process of the coil assembly 30 and the valve seat 10, the hand portion 4033 can play a guiding role, that is, the fixing protrusion 12 can slide into the slot along the hand portion 4033, so that the matching process of the clamping member 403 and the fixing protrusion 12 is more labor-saving and convenient; on the other hand, during the disassembly process of the coil assembly 30 and the valve seat 10, the hand portions 4033 of the two clamping members 403 can be pulled in a direction close to each other, so that the fixing protrusion 12 can be separated from the slot defined by the second section 4032, so that the disassembly operation is simple and labor-saving.

[0076] Embodiment 3,

[0077] Combination Figure 9-12 The main structure of the electric valve 100 in this embodiment is the same as that of the electric valve 100 in the first embodiment, and the similarities are not repeated here. The differences between the electric valve 100 in this embodiment and the electric valve 100 in the first embodiment are described below.

[0078] In this embodiment, there are two fixing protrusions 12, which are arranged on the valve seat 10 at intervals along the circumference of the valve seat 10. There are two clips 403, which correspond one-to-one to the fixing protrusions 12. The second sections 4032 of the two clips 403 respectively abut against one side of the corresponding fixing protrusion 12 along the axial direction of the valve core assembly 20. For example, the two fixing protrusions 12 include a first fixing protrusion 12a and a second fixing protrusion 12b, and the two clips 403 include a first clip 403a and a second clip 403b. Optionally, the second section 4032 of the first clip 403a abuts against the side of the first fixing protrusion 12a along the axial direction of the valve core assembly 20 and away from the coil assembly 30, and the second section 4032 of the second clip 403b abuts against the side of the second fixing protrusion 12b along the axial direction of the valve core assembly 20 and away from the coil assembly 30; or, the second section 4032 of the first clip 403a abuts against the side of the first fixing protrusion 12a along the axial direction of the valve core assembly 20 and away from the coil assembly 30, and the second section 4032 of the second clip 403b abuts against the side of the second fixing protrusion 12b along the axial direction of the valve core assembly 20 and close to the coil assembly 30. That is to say, the two clamping members 403 cooperate with the two fixing protrusions 12 respectively to achieve a stable connection between the coil assembly 30 and the valve seat 10 .

[0079] Thus, the electric valve 100 provided in this embodiment realizes a stable connection between the coil assembly 30 and the valve seat 10 by respectively cooperating with the two fixing protrusions 12 through the two clamping members 403. The solution of connecting the coil assembly and the valve seat by connecting screws in the related art is omitted, the number of parts of the electric valve 100 is reduced, the material cost is reduced, and the assembly structure of the electric valve 100 is simpler, which can simplify the assembly process, improve the assembly efficiency, and also improve the integration of the electric valve 100 itself.

[0080] refer to Fig. 9 and Fig.12 The two clips 403 include a first clip 403a and a second clip 403b, wherein the length of the first section 4031 of the first clip 403a is greater than the length of the first section 4031 of the second clip 403b, the second section 4032 of the first clip 403a abuts against the side of the corresponding fixing protrusion 12 facing away from the coil assembly 30, and the second section 4032 of the second clip 403b abuts against the side of the corresponding fixing protrusion 12 facing the coil assembly 30, the first clip 403a and the second clip 403b are both roughly formed in an L shape, a hook fit is formed between the first clip 403a and the first fixing protrusion 12a, and a pressing fit is formed between the second clip 403b and the second fixing protrusion 12b, and the force of the first clip 403a on the first fixing protrusion 12a is opposite to the direction of the force of the second clip 403b on the second fixing protrusion 12b.

[0081] When the coil assembly 30 is assembled with the valve seat 10, it is only necessary to match the first clamping member 403a with the first fixing protrusion 12a, and the first clamping member 403a with the first fixing protrusion 12a and the second clamping member 403b with the second fixing protrusion 12b can be matched at the same time; and when the coil assembly 30 is separated from the valve seat 10, the second clamping member 403b can be separated from the second fixing protrusion 12b first, and then the first clamping member 403a can be separated from the first fixing protrusion 12a. In this way, the connection between the coil assembly 30 and the valve seat 10 can be stable and easy to assemble and disassemble.

[0082] refer to Fig. 9 and Fig.10 , the angle between the second section 4032 of the first clamping member 403a and the first section 4031 is less than or equal to 90°, and the angle between the second section 4032 of the second clamping member 403b and the first section 4031 is greater than or equal to 90°. In this way, the first clamping member 403a and the second clamping member 403b can cooperate with each other to improve the overall cooperation stability between the clamping member 403 and the fixing protrusion 12.

[0083] For example, the second section 4032 of the first clamping component 403a and the first section 4031 can be perpendicular to each other; or, the angle between the second section 4032 of the first clamping component 403a and the first section 4031 is acute. In this case, the fixing protrusion 12 corresponding to the first clamping component 403a can be stuck in the angle between the second section 4032 of the first clamping component 403a and the first section 4031, thereby improving the matching stability between the first clamping component 403a and the corresponding fixing protrusion 12. The second section 4032 of the second clamp 403b and the first section 4031 can be perpendicular to each other; or, the angle between the second section 4032 of the second clamp 403b and the first section 4031 is obtuse. In this case, the second section 4032 of the second clamp 403b can have a component force acting on the corresponding fixed protrusion 12 along the circumferential direction and toward the side of the first clamp 403a, and the second section 4032 of the second clamp 403b and the first section 4031 of the first clamp 403a can cooperate with each other to form a limiting effect on the fixed protrusion 12 along the circumferential direction of the valve seat 10.

[0084] The second sections 4032 of the two clamping members 403 are both located on the same side of their respective first sections 4031 , for example Fig. 9 As shown, the second section 4032 of the first clamping member 403a is located on the right side of the first section 4031 of the first clamping member 403a, and the second section 4032 of the second clamping member 403b is located on the right side of the first section 4031 of the second clamping member 403b, which is convenient for processing.

[0085] refer to Fig. 9 , the two fixing protrusions 12 are located on the same side wall of the valve seat 10 along the circumferential direction. For example, when the valve seat is a square valve seat, the two fixing protrusions 12 are located on any one of the front side wall, the rear side wall, the left side wall and the right side wall of the valve seat 10. In this way, on the one hand, the processing technology of the fixing protrusions 12 and the valve seat 10 can be simplified, and on the other hand, during the assembly process, it is convenient to simultaneously observe and adjust the matching state of the two fixing protrusions 12 and the two clamping parts, so that the assembly operation of the valve seat 10 and the coil assembly 30 is simpler and the assembly efficiency can be improved.

[0086] refer to Fig.12 The connector 402 is provided with notches 4021 on the two opposite sides of the circumferential edge of the base 401. By providing the notches 4021, the overall structural strength of the connector 402 can be reduced, and the elasticity of the connector 402 can be increased. When the coil assembly 30 is assembled with the valve seat 10, the connector 402 can be elastically deformed to a certain extent to ensure that the second section 4032 on the clamping member 403 is accurately matched with the fixing protrusion 12, thereby reducing the difficulty of assembly and helping to improve assembly efficiency. Optionally, the clamping member 403 and the base 401 are located on both sides of the notch 4021, respectively.

[0087] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0088] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0089] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0090] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electric valve (100), characterized in that: include: A valve seat (10), the valve seat (10) comprising a valve cavity (11), a mounting socket communicating with the valve cavity (11), and a fixing protrusion (12); A valve core assembly (20), at least a portion of the structure of the valve core assembly (20) being installed in the valve cavity (11) via the installation socket; A coil assembly (30), wherein the coil assembly (30) is sleeved on the valve core assembly (20); A fixing assembly (40), the fixing assembly (40) comprising a base (401), a connecting piece (402) and a snap-on piece (403), the base (401) being fixedly connected to the coil assembly (30), the snap-on piece (403) being snap-connected to the fixing protrusion (12) for limiting position, and the connecting piece (402) being used to connect the snap-on piece (403) to the base (401).

2. The electric valve (100) according to claim 1, characterized in that: The fixing protrusion is arranged on the side wall of the valve seat (10); The coil assembly (30) and the valve seat (10) are arranged relative to each other along the axial direction of the valve core assembly (20); the base (401) is connected to one end of the coil assembly (30) facing the valve seat (10); and the clamping member (403) is located on the side of the valve seat (10) so as to be clamped with the fixing protrusion (12).

3. The electric valve (100) according to claim 2, characterized in that: The clamping member (403) comprises: a first section (4031) and a second section (4032), wherein the first section (4031) extends along the axial direction of the valve core assembly (20), and the first section (4031) is connected to the connecting member (402) and the second section (4032) respectively. The extension direction of the second section (4032) is different from that of the first section (4031), and one side of the second section (4032) along its own thickness direction abuts against the fixing protrusion (12).

4. The electric valve (100) according to claim 3, characterized in that: There is at least one fixing protrusion (12) and there are multiple clamping parts (403). The second section (4032) of each clamping part (403) is suitable for abutting against one side of the fixing protrusion (12) along the circumference of the valve seat (10), and the second sections (4032) of the multiple clamping parts (403) exert opposite forces on the fixing protrusion (12).

5. The electric valve (100) according to claim 4, characterized in that: There is one fixing protrusion (12) and two clamping parts (403), and the two clamping parts (403) are symmetrically distributed on opposite sides of the fixing protrusion (12) along the circumference of the valve seat (10), so that the second sections (4032) of the two clamping parts (403) are clamped together with the fixing protrusion (12).

6. The electric valve (100) according to claim 4, characterized in that: There are two fixing protrusions (12), and the two fixing protrusions (12) are arranged at intervals along the circumference of the valve seat (10). There are two clamping members (403) corresponding one to one with the fixing protrusions (12), and the second sections (4032) of the two clamping members (403) respectively abut against the two fixing protrusions (12) facing each other.

7. The electric valve (100) according to claim 4, characterized in that: The second section (4032) of the clamping member (403) extends along the circumference of the fixing protrusion (12) to define a clamping groove, and the fixing protrusion (12) is clamped in the clamping groove.

8. The electric valve (100) according to claim 7, characterized in that: The second section (4032) is formed as an arc-shaped section.

9. The electric valve (100) according to claim 7, characterized in that: The clamping member (403) further comprises: a latching portion (4033), wherein the latching portion (4033) is arranged at an end of the second section (4032) away from the first section (4031), and the free end of the latching portion (4033) extends in a direction deviating from the opening of the clamping slot.

10. The electric valve (100) according to claim 3, characterized in that: There are two fixing protrusions (12), and the two fixing protrusions (12) are arranged at intervals along the circumference of the valve seat (10). There are two clamping parts (403) corresponding to the fixing protrusions (12) one by one. The two clips (403) include a first clip (403a) and a second clip (403b), wherein the second section (4032) of the first clip (403a) abuts against the side of the corresponding fixing protrusion (12) facing away from the coil assembly (30), and the second section (4032) of the second clip (403b) abuts against the side of the corresponding fixing protrusion (12) facing toward the coil assembly (30).

11. The electric valve (100) according to claim 10, characterized in that: The length of the first section (4031) of the first clamping member (403a) is greater than the length of the first section (4031) of the second clamping member (403b), and the second sections (4032) of the first clamping member (403a) and the second clamping member (403b) are respectively connected to the free ends of their respective first sections (4031).

12. The electric valve (100) according to claim 10, characterized in that: The angle between the second section (4032) of the first clamping member (403a) and the first section (4031) is less than or equal to 90°, and the angle between the second section (4032) of the second clamping member (403b) and the first section (4031) is greater than or equal to 90°.

13. The electric valve (100) according to any one of claims 1 to 12, characterized in that: The fixing protrusion (12) and the valve seat (10) are an integrally formed part; or, the fixing protrusion (12) and the valve seat (10) are detachably connected.

14. The electric valve (100) according to any one of claims 1 to 12, characterized in that: A plurality of connection posts (301) are provided on one side of the coil assembly (30) facing the valve seat (10), and the plurality of connection posts (301) are arranged at intervals along the circumference of the valve core assembly (20). The base (401) is provided with a plurality of connection holes (4011) adapted to the connection posts (301), and the connection posts (301) are passed through the connection holes (4011) and connected to the base (401); The valve core assembly (20) is inserted into the base (401).

15. The electric valve (100) according to any one of claims 1 to 12, characterized in that: One end of the connecting member (402) is connected to the base (401), and the other end extends outwardly along the radial direction of the base (401). The clamping member (403) is arranged on opposite sides of the connecting member (402) along the circumference of the base (401) and is spaced apart from the base (401).

16. The electric valve (100) according to claim 15, characterized in that: The connecting member (402) is provided with notches (4021) on two opposite edges along the circumference of the base (401) to increase the elasticity of the connecting member (402). The clamping member (403) and the base (401) are respectively located on two sides of the notch (4021).

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