Electromagnetic coil and electronic valve

Abstract

The utility model provides an electromagnetic coil which comprises a stator assembly, a wire connecting part and a wire assembly. The stator assembly comprises a winding, a pin, a stator shell and an encapsulation structure, the winding is arranged in the stator shell, and the encapsulation structure wraps at least one part of the winding and at least one part of the pin; the wire connecting part is connected to the stator assembly and is suitable for accommodating the pin. The wire connecting part is provided with a mounting groove. The wire assembly comprises a wire and a sealing rubber sleeve, the wire is provided with a connecting end portion, the connecting end portion is installed in the installation groove and connected to the stator assembly through a pin, the sealing rubber sleeve is arranged on the periphery of the connecting end portion in a sleeving mode and matched with the installation groove in a sealing mode, the sealing rubber sleeve is provided with a through hole for the wire to penetrate through, and the wire is matched with the through hole in a sealing mode. Through the structural design, the production cycle can be shortened, the difficulty of the production process can be reduced, the standardization degree of the winding can be improved, the lead can be recycled after the electromagnetic coil is bad, and the material cost can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic valves and components thereof, in particular to an electromagnetic coil with a sealing structure and an electronic valve with the electromagnetic coil. Background Art

[0002] In the existing design scheme of the electromagnetic coil, the stator assembly and the wire are sealed at the electrical connection position by glue potting or plastic injection molding. However, the above existing schemes have the following technical problems: For the glue potting process, its production cycle is relatively long, and the production process of the electromagnetic coil is required to be more difficult. For the injection molding process, its production process is more difficult and is prone to poor injection molding. In addition, the above two existing sealing processes also have the problem of low standardization of electromagnetic coils, and it is difficult to recycle the wires after a defective electromagnetic coil occurs, resulting in cost waste. Utility Model Content

[0003] A main purpose of the utility model is to overcome at least one defect of the above-mentioned prior art and provide an electromagnetic coil with a shorter production cycle, lower process difficulty, higher standardization and the ability to recycle the wire after the coil is defective.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] According to one aspect of the utility model, an electromagnetic coil is provided, which includes a stator assembly, a wire connecting portion and a wire assembly; the stator assembly includes a winding, a pin, a stator housing and an encapsulation structure, the winding is arranged in the stator housing, and the encapsulation structure covers at least a portion of the winding and at least a portion of the pin; the wire connecting portion is connected to the stator assembly and is suitable for accommodating the pin, and the wire connecting portion is provided with a mounting groove; the wire assembly includes a wire and a sealing rubber sleeve, the wire has a connecting end, the connecting end is installed in the mounting groove and is connected to the stator assembly via the pin, the sealing rubber sleeve is sleeved on the outer periphery of the connecting end, and is sealed with the mounting groove, the sealing rubber sleeve is provided with a through hole for the wire to pass through, and the wire is sealed with the through hole.

[0006] According to one embodiment of the utility model, the wire connecting portion is provided with a connecting hole, the connecting hole is suitable for the insertion of the plug pin, and one end of the connecting hole is connected to the inner cavity of the stator housing; the wire connecting portion is provided with a receiving groove, the receiving groove is arranged at the groove bottom of the mounting groove, and the connecting hole is connected to the groove bottom of the receiving groove; the other end of the connecting hole is connected to the receiving groove, and the connecting hole is connected to the mounting groove via the receiving groove; wherein the connecting end portion is connected to the plug pin via a connecting structure, and the connecting structure is at least partially accommodated in the receiving groove.

[0007] According to one of the embodiments of the utility model, wherein: the installation groove has a first side corresponding to the connection between the wire and the pin, and there is a gap between the sealing rubber sleeve and the first side of the installation groove; or, the sealing rubber sleeve fills the installation groove.

[0008] According to one embodiment of the present invention, at least a portion of the outer circumference of the sealing rubber sleeve is larger than the inner circumference of the installation groove.

[0009] According to one embodiment of the present invention, the outer circumference of the end of the sealing rubber sleeve away from the insertion pin is greater than or equal to the outer circumference of the end close to the insertion pin.

[0010] According to one embodiment of the utility model, a first sealing protrusion is provided on the groove wall of the installation groove, and the installation groove is suitable for pressing the sealing rubber sleeve via the first sealing protrusion so that the sealing rubber sleeve is partially pressed inward, so that the area of ​​the installation groove where the first sealing protrusion is provided has an interference fit with the sealing rubber sleeve.

[0011] According to one embodiment of the utility model, wherein: the first sealing protrusion is a closed ring structure; and / or, the groove wall of the mounting groove is provided with one first sealing protrusion; and / or, the groove wall of the mounting groove is provided with at least two first sealing protrusions, and at least two of the first sealing protrusions are arranged at intervals in the axial direction of the wire.

[0012] According to one embodiment of the utility model, a second sealing protrusion is provided on the outer periphery of the sealing rubber sleeve, and the outer periphery size of the sealing rubber sleeve at the second sealing protrusion is larger than the inner periphery size of the installation groove, so that the sealing rubber sleeve and the installation groove have an interference fit.

[0013] According to one embodiment of the utility model, the second sealing protrusion is in a closed ring structure; and / or, one second sealing protrusion is arranged on the outer periphery of the sealing rubber sleeve; and / or, at least two second sealing protrusions are arranged on the outer periphery of the sealing rubber sleeve, and at least two second sealing protrusions are arranged at intervals in the axial direction of the wire.

[0014] According to one embodiment of the utility model, the sealing rubber sleeve includes a rubber sleeve body and a clamping wall of an integral structure, the sealing rubber sleeve is suitable for being sleeved on the outer periphery of the connecting end portion via the rubber sleeve body, the clamping walls are located at intervals on the outer periphery of the rubber sleeve body so that a clamping groove is formed between the rubber sleeve body and the clamping wall, the clamping wall is provided with a clamping hole, and the clamping hole penetrates along the radial direction of the wire; the part of the wire connecting part adjacent to the notch of the installation groove is inserted in the clamping groove, and the outer wall of the wire connecting part is provided with a clamping boss, and the clamping boss is clamped and matched with the clamping hole.

[0015] According to one embodiment of the present invention, the clamping wall is arranged around the outer circumference of the rubber sleeve body to form a closed ring structure.

[0016] Another main purpose of the utility model is to overcome at least one defect of the above-mentioned prior art and provide an electronic valve using the above-mentioned electromagnetic coil.

[0017] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0018] According to another aspect of the present invention, an electronic valve is provided, which includes the electromagnetic coil proposed by the present invention and described in detail in the above embodiments.

[0019] It can be seen from the above technical solution that the advantages and positive effects of the electromagnetic coil proposed by the utility model are:

[0020] The electromagnetic coil proposed in the utility model includes a stator assembly, a wire connection part and a wire assembly; the stator assembly includes a winding, a pin, a stator housing and an encapsulation structure, the winding is arranged in the stator housing, and the encapsulation structure covers at least a part of the winding and at least a part of the pin; the wire connection part is connected to the stator assembly and is suitable for accommodating the pin, and the wire connection part is provided with a mounting groove; the wire assembly includes a wire and a sealing rubber sleeve, the wire has a connecting end, the connecting end is installed in the mounting groove, and is connected to the stator assembly via the pin, the sealing rubber sleeve is sleeved on the outer periphery of the connecting end, and is sealed with the mounting groove. Through the above structural design, the utility model can use the sealing rubber sleeve to achieve the sealing between the wire and the wire connection part, that is, use the sealing rubber sleeve to form a soft sealing structure, thereby replacing existing sealing solutions such as glue potting sealing or injection molding sealing. Accordingly, compared with glue potting sealing, the utility model can shorten the production cycle and reduce the difficulty of the production process of the electromagnetic coil. Moreover, compared with injection molding sealing, the utility model can reduce the difficulty of the production process and avoid poor injection molding. Moreover, compared with the above-mentioned existing sealing schemes, the utility model can also improve the standardization of the electromagnetic coil, which is conducive to the recycling of the wire after the electromagnetic coil is defective, saving material costs. In addition, the utility model directly seals the sealing rubber sleeve connected to the wire with the wire connection part. Compared with the existing scheme of "the wire is connected to the sealing sleeve and connected to the connector via the sealing sleeve, the wire and the connector are sealed via the sealing sleeve, and then another sealing sleeve is connected to the connector and connected to the coil connection part via the sealing sleeve, and the connector and the coil connection part are sealed via the sealing sleeve", the utility model can only use one component of the sealing rubber sleeve, that is, it realizes the sealing insulation between it and the wire connection part and the wire at two places, which is conducive to reducing the number of parts, simplifying the complexity of the structure, and reducing the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0022] Figure 1 is a schematic diagram of a three-dimensional structure of an electromagnetic coil according to an exemplary embodiment;

[0023] Figure 2 yes Figure 1 A top view of the electromagnetic coil is shown;

[0024] Figure 3 is along Figure 2 The cross-sectional view made by the straight line AA in;

[0025] Figure 4 yes Figure 3 An enlarged schematic diagram of part B in FIG.

[0026] Figure 5 yes Figure 1 The three-dimensional structural schematic diagram of the sealing rubber sleeve of the electromagnetic coil is shown;

[0027] Figure 6 yes Figure 5 A top view of the sealing rubber sleeve is shown;

[0028] Figure 7 is along Figure 6 The cross-sectional view made by the straight line CC in;

[0029] Figure 8 is a partial cross-sectional view of an electromagnetic coil according to another exemplary embodiment;

[0030] Fig. 9 is a schematic diagram of a three-dimensional structure of a sealing rubber sleeve of an electromagnetic coil according to another exemplary embodiment;

[0031] Fig.10 yes Fig. 9 A top view of the sealing rubber sleeve is shown;

[0032] Fig.11 is along Fig.10 The sectional view made by the straight line DD in;

[0033] Fig.12 is a schematic diagram of a three-dimensional structure of an electromagnetic coil according to another exemplary embodiment;

[0034] Fig.13 yes Fig.12 A partial cross-sectional view of the electromagnetic coil shown;

[0035] Fig.14 yes Fig.13 The three-dimensional structural schematic diagram of the sealing rubber sleeve of the electromagnetic coil is shown;

[0036] Fig.15 yes Fig.14 A top view of the sealing rubber sleeve is shown;

[0037] Fig.16 is along Fig.15 Sectional view made by straight line EE in.

[0038] The following are the descriptions of the reference numerals:

[0039] 100. Shell;

[0040] 210. Winding;

[0041] 220. Encapsulation structure;

[0042] 230. Wire connection part;

[0043] 231. Mounting slot;

[0044] 2311. First sealing protrusion;

[0045] 232. Receiving slot;

[0046] 233. Snap-fit ​​boss;

[0047] 240. Pin;

[0048] 250. Stator housing;

[0049] 310. Wire;

[0050] 311. Connecting end;

[0051] 312. Connection structure;

[0052] 320. Sealing rubber sleeve;

[0053] 321. Second sealing protrusion;

[0054] 322. Rubber sleeve body;

[0055] 323. Card wall;

[0056] 3231. Card hole;

[0057] 324. Card slot;

[0058] 325.Through hole;

[0059] G. Gap. DETAILED DESCRIPTION

[0060] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present invention.

[0061] In the following description of different exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part of the utility model and in which different exemplary structures, systems and steps that can implement multiple aspects of the utility model are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the utility model. Moreover, although the terms "above", "between", "within", etc. can be used in this specification to describe different exemplary features and elements of the utility model, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the utility model.

[0062] See also Figure 1 , which representatively shows a three-dimensional structural schematic diagram of the electromagnetic coil proposed in the utility model. In this exemplary embodiment, the electromagnetic coil proposed in the utility model is described by taking the application in a refrigeration system as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the utility model to the electromagnetic coil of other types of application scenarios, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the electromagnetic coil proposed in the utility model.

[0063] like Figure 1 As shown, in one embodiment of the present invention, the electromagnetic coil provided by the present invention includes a stator assembly, a wire connecting portion 230 and a wire assembly. Figures 2 to 7 , Figure 2 A top view of the electromagnetic coil is representatively shown in FIG. Figure 3 The representative diagram shows the Figure 2 The cross-sectional view made by the straight line AA in; Figure 4 A representative example is shown in Figure 3 An enlarged schematic diagram of part B in FIG.

[0064] Figure 5 A three-dimensional structural schematic diagram of the sealing rubber sleeve 320 is representatively shown in FIG. Figure 6 A top view of the sealing rubber sleeve 320 is representatively shown in FIG. Figure 7 The representative diagram shows the Figure 6 The following will be combined with the above-mentioned drawings to explain in detail the structure, connection mode and functional relationship of each main component of the utility model.

[0065] like Figures 1 to 4As shown, in one embodiment of the utility model, the stator assembly includes a winding 210, a pin 240, a stator housing 250 and an encapsulation structure 220. The winding 210 is arranged in the stator housing 250. The encapsulation structure 220 covers at least a portion of the winding 210 and at least a portion of the pin 240. The wire connecting portion 230 is connected to the stator assembly and is suitable for accommodating the pin 240, and the wire connecting portion 230 is provided with a mounting groove 231. The wire assembly includes a wire 310 and a sealing rubber sleeve 320. The wire 310 has a connecting end 311, the connecting end 311 is installed in the mounting groove 231, and the connecting end 311 is connected to the stator assembly via the pin 240. The sealing rubber sleeve 320 is sleeved on the outer periphery of the connecting end 311, the sealing rubber sleeve 320 is sealed with the mounting groove 231, and the sealing rubber sleeve 320 is provided with a through hole 325 for the wire 310 to pass through, and the wire 310 is sealed with the through hole 325. Through the above structural design, the utility model can use the sealing rubber sleeve 320 to achieve the seal between the wire 310 and the wire connecting part 230, that is, use the sealing rubber sleeve 320 to form a soft sealing structure, thereby replacing existing sealing solutions such as glue potting sealing or injection molding sealing. Accordingly, compared with glue potting sealing, the utility model can shorten the production cycle and reduce the difficulty of the production process of the electromagnetic coil. Moreover, compared with injection molding sealing, the utility model can reduce the difficulty of the production process and avoid poor injection molding. Moreover, compared with the above-mentioned existing sealing solutions, the utility model can also improve the standardization of the electromagnetic coil, which is conducive to the recycling of the wire 310 after the electromagnetic coil is defective, saving material costs. In addition, the utility model directly seals and connects the sealing rubber sleeve 320 connected to the wire 310 with the wire connecting part 230. Compared with the existing solution of "the wire is connected to the sealing sleeve and connected to the connector via the sealing sleeve, the wire and the connector are sealed via the sealing sleeve, and then another sealing sleeve is connected to the connector and connected to the coil connecting part via the sealing sleeve, and the connector and the coil connecting part are sealed via the sealing sleeve", the utility model can use only one component, the sealing rubber sleeve 320, to achieve two-point sealing insulation between it and the wire connecting part 230 and the wire 310, which is beneficial to reduce the number of parts, simplify the structural complexity, and reduce the difficulty of assembly.

[0066] In one embodiment of the present invention, the sealing rubber sleeve 320 and the mounting groove 231 can be interference fit, that is, the outer circumference of at least part of the sealing rubber sleeve 320 can be larger than the inner circumference of the relative position of the mounting groove 231. Accordingly, the outer circumference of the sealing rubber sleeve 320 before being installed with the wire 310 and the relative position of the mounting groove 231 are interference fit, and the sealing rubber sleeve 320 is squeezed during the installation process to achieve a tight fit and seal between the sealing rubber sleeve 320 and the groove wall of the mounting groove 231. Through the above structural design, the present invention can prevent the sealing rubber sleeve 320 from being separated from the mounting groove 231 of the wire connecting part 230, improve the structural stability, and ensure the sealing and insulating function.

[0067] like Figure 4 As shown, in one embodiment of the present invention, the mating surface of the wire connecting portion 230 and the sealing rubber sleeve 320 (for example, the groove wall of the installation groove 231 and the outer peripheral surface of the sealing rubber sleeve 320) can be a planar mating structure. On this basis, the sealing and insulating function can be achieved through the interference fit between the sealing rubber sleeve 320 and the wire connecting portion 230. In some embodiments, a protrusion or a recessed structure can also be provided on at least one of the outer peripheral surface of the sealing rubber sleeve 320 or the groove wall of the installation groove 231, thereby also achieving the sealing and insulating function. For details, please refer to the following multiple exemplary embodiments for example description, which will not be repeated here.

[0068] like Figure 4 As shown, in one embodiment of the utility model, the wire connecting portion 230 may be provided with a connecting hole, one end of the connecting hole is connected to the inner cavity of the stator housing 250 (i.e., the space of the stator housing 250 for accommodating the winding 210), and the other end of the connecting hole is connected to the mounting groove 231, and the connecting hole is suitable for the insertion of the pin 240.

[0069] like Figure 4 As shown, based on the structural design that the wire connecting portion 230 is provided with a connecting hole, in one embodiment of the present utility model, the wire connecting portion 230 may also be provided with a receiving groove 232, which is provided at the bottom of the mounting groove 231, and the other end of the connecting hole is connected to the receiving groove 232, thereby the connecting hole is connected to the mounting groove 231 via the receiving groove 232. On this basis, the connecting end 311 of the wire 310 can be connected to the pin 240 via the connecting structure 312, and the connecting structure 312 is at least partially accommodated in the receiving groove 232.

[0070] In one embodiment of the present invention, the wire connection portion 230 and the encapsulation structure 220 may be integrally formed. In some embodiments, the wire connection portion 230 and the encapsulation structure 220 may also be independently formed structures, and the two are fixedly connected.

[0071] like Figure 4As shown, in one embodiment of the present invention, the mounting groove 231 has a first side corresponding to the connection between the wire 310 and the pin 240. For example, in this embodiment, the accommodating groove 232 is arranged at the bottom of the mounting groove 231 as an example for explanation, that is, the above-mentioned first side of the mounting groove 231 is its bottom. On this basis, there may be a gap G between the sealing rubber sleeve 320 and the bottom of the mounting groove 231. Through the above-mentioned structural design, the present invention can leave a gap G between the sealing rubber sleeve 320 and the mounting groove 231, which can be used for the placement of the wire 310, and can also adapt to the dimensional extension of the sealing rubber sleeve 320 when it is deformed due to temperature changes, prevent the sealing rubber sleeve 320 from being damaged due to lack of extension space when it is deformed due to temperature changes, and extend the life of the sealing rubber sleeve 320. In some embodiments, when the connection between the wire 310 and the pin 240 is located at other positions of the installation slot 231, such as the first side of the installation slot 231 is the slot wall, a gap G may be left between the sealing rubber sleeve 320 and the first side of the installation slot 231. Furthermore, the sealing rubber sleeve 320 may also fill the installation slot 231, which is not limited to the above embodiments. Figure 5 and Figure 7 As shown, in one embodiment of the present invention, at least part of the outer circumference of the sealing rubber sleeve 320 is larger than the inner circumference of the mounting groove 231. Through the above structural design, the present invention can make the sealing rubber sleeve 320 and the groove wall of the mounting groove 231 more tightly squeeze each other during the process of inserting the connecting end 311 with the sealing rubber sleeve 320 into the mounting groove 231, thereby further improving the sealing and insulating effect.

[0072] like Figure 5 and Figure 7 As shown, in one embodiment of the present invention, the outer circumference of the end of the sealing rubber sleeve 320 away from the plug pin 240 can be greater than the outer circumference of the end close to the plug pin 240. Accordingly, the outer circumference of the end of the sealing rubber sleeve 320 away from the plug pin 240 is greater than the inner circumference of the mounting groove 231. In some embodiments, on the basis of ensuring the sealing rubber sleeve 320 and the mounting groove 231 are sealed, the sealing rubber sleeve 320 can also adopt any possible structural form, for example, the outer circumference of the end of the sealing rubber sleeve 320 away from the plug pin 240 can also be equal to or less than the outer circumference of the end close to the plug pin 240, and it is not limited to this embodiment.

[0073] like Figure 7As shown, based on the structural design that the outer circumference of the end of the sealing rubber sleeve 320 away from the plug pin 240 is larger than the outer circumference of the end close to the plug pin 240, in one embodiment of the present invention, the cross section of the sealing rubber sleeve 320 can be trapezoidal, that is, the side of the cross-sectional figure of the sealing rubber sleeve 320 can be straight. In some embodiments, the side of the cross-sectional figure of the sealing rubber sleeve 320 can also be in other shapes, such as but not limited to arc, etc., and is not limited to this embodiment.

[0074] like Figures 5 to 7 As shown, in one embodiment of the utility model, the wire 310 and the sealing rubber sleeve 320 can be tightly matched. For example, before the wire 310 and the sealing rubber sleeve 320 are installed, the size relationship between them and the through hole 325 can be an interference fit. During the installation process, the wire 310 and the sealing rubber sleeve 320 are squeezed to achieve a tight fit and sealing.

[0075] In one embodiment of the present invention, the sealing rubber sleeve 320 and the wire 310 can be assembled by installing the sealing rubber sleeve on the wire 310 during the production process of the wire 310. In some embodiments, the sealing rubber sleeve 320 and the wire 310 can also be assembled in other ways, for example, the sealing rubber sleeve 320 can be injection molded on the wire 310 by injection molding, which is not limited to this embodiment.

[0076] In one embodiment of the present invention, the connection method between the pin 240 and the wire 310 can be a plug-in method. Through the above structural design, the plug-in method has the advantages of simple process and easy operation. In some embodiments, the pin 240 and the wire 310 can also be connected in other ways, such as direct connection, connection via a circuit board, etc., which is not limited to this embodiment.

[0077] In one embodiment of the present invention, the wire 310 may be a cable (i.e., a connector with a sealed structure formed by combining multiple wire harnesses). In some embodiments, the wire 310 may also be other cable structures, such as only including a single wire harness, which is not limited to this embodiment.

[0078] like Figures 1 to 3 As shown, in one embodiment of the present invention, the electromagnetic coil provided by the present invention may further include a housing 100, which is coated on the outside of the stator assembly to achieve waterproof, dustproof and insulation functions.

[0079] See also Figure 8 , Figure 8 A partial cross-sectional view of an electromagnetic coil in another exemplary embodiment that can embody the principle of the utility model is representatively shown, wherein the specific Figure 4 Of Figure 3 The enlarged area and Figure 3 Of Figure 2 The cutting position.

[0080] like Figure 8 As shown, in one embodiment of the present invention, the groove wall of the installation groove 231 may be provided with a first sealing protrusion 2311, and the installation groove 231 is suitable for pressing the sealing rubber sleeve 320 via the first sealing protrusion 2311 so that the sealing rubber sleeve 320 is partially pressed and concave, so that the area of ​​the installation groove 231 provided with the first sealing protrusion 2311 is interference-fitted with the sealing rubber sleeve 320. Through the above structural design, the present invention can use the first sealing protrusion 2311 to further improve the sealing and insulating effect of the installation groove 231 and the sealing rubber sleeve 320.

[0081] like Figure 8 As shown, based on the structural design that the groove wall of the installation groove 231 is provided with the first sealing protrusion 2311, in one embodiment of the present utility model, the first sealing protrusion 2311 can be in a closed ring structure, that is, the first sealing protrusion 2311 is arranged around the groove wall of the installation groove 231. Through the above structural design, the utility model can further enhance the sealing and insulating effect of the first sealing protrusion 2311. In some embodiments, the groove wall of the installation groove 231 can also be provided with the first sealing protrusion 2311 in multiple discontinuous sections, and the multiple sections of the first sealing protrusion 2311 are arranged at intervals along a circumferential path surrounding the groove wall of the installation groove 231. Furthermore, the first sealing protrusion 2311 can also be spiral, for example, extending along a threaded path, which is not limited to this embodiment.

[0082] like Figure 8 As shown, based on the structural design that the groove wall of the installation groove 231 is provided with a first sealing protrusion 2311, in one embodiment of the utility model, the groove wall of the installation groove 231 can be provided with at least two first sealing protrusions 2311, for example but not limited to Figure 8 Among them, at least two first sealing protrusions 2311 are in the axial direction of the wire 310 (for example Figure 8 Through the above structural design, the utility model can further enhance the sealing and insulating effect of the first sealing protrusion 2311. In some embodiments, the groove wall of the installation groove 231 can also be provided with only one first sealing protrusion 2311, which is not limited to this embodiment. Figures 9 to 11 , Fig. 9 , a three-dimensional structural schematic diagram of a sealing rubber sleeve 320 of an electromagnetic coil in another exemplary embodiment that can embody the principle of the utility model is representatively shown; Fig.10 A representative example is shown in Fig. 9 A top view of the sealing rubber sleeve 320 is shown; Fig.11 The representative diagram shows the Fig.10 Sectional view made by straight line DD in.

[0083] like Figures 9 to 11 As shown, in one embodiment of the present invention, the outer circumference of the sealing rubber sleeve 320 may be provided with a second sealing protrusion 321, and the outer circumference size of the sealing rubber sleeve 320 at the second sealing protrusion 321 may be larger than the inner circumference size of the mounting groove 231, so that the sealing rubber sleeve 320 and the mounting groove 231 are interference-fitted. Through the above structural design, the present invention can further improve the sealing and insulating effect of the mounting groove 231 and the sealing rubber sleeve 320 by using the second sealing protrusion 321.

[0084] like Fig. 9 As shown, based on the structural design that the second sealing protrusion 321 is provided on the outer periphery of the sealing rubber sleeve 320, in one embodiment of the present invention, the second sealing protrusion 321 can be a closed ring structure, that is, the second sealing protrusion 321 is arranged around the outer periphery of the sealing rubber sleeve 320. Through the above structural design, the present invention can further enhance the sealing and insulating effect of the second sealing protrusion 321. In some embodiments, the outer periphery of the sealing rubber sleeve 320 can also be provided with a plurality of discontinuous sections of the second sealing protrusion 321, and the plurality of sections of the second sealing protrusion 321 are arranged at intervals along a circumferential path surrounding the outer periphery of the sealing rubber sleeve 320. Furthermore, the second sealing protrusion 321 can also be spiral, for example, extending along a threaded path, which is not limited to the present embodiment.

[0085] like Fig. 9 and Fig.11 As shown, based on the structural design that the outer periphery of the sealing rubber sleeve 320 is provided with a second sealing protrusion 321, in one embodiment of the present utility model, the outer periphery of the sealing rubber sleeve 320 may be provided with at least two second sealing protrusions 321, for example but not limited to Fig. 9 Among them, at least two second sealing protrusions 321 are arranged in the axial direction of the wire 310 (for example Fig.11 Through the above structural design, the utility model can further enhance the sealing and insulating effect of the second sealing protrusion 321. In some embodiments, only one second sealing protrusion 321 may be provided on the periphery of the sealing rubber sleeve 320, which is not limited to this embodiment.

[0086] See also Figures 12 to 16 , Fig.12 A three-dimensional structural schematic diagram of an electromagnetic coil in another exemplary embodiment that can embody the principle of the utility model is representatively shown in FIG. Fig.13 A representative example is shown in Fig.12 A partial cross-sectional view of Figure 4 Of Figure 3 The enlarged area and Figure 3 Of Figure 2 The cutting position; Fig.14 A three-dimensional structural schematic diagram of the sealing rubber sleeve 320 is representatively shown in FIG. Fig.15 A representative example is shown in Fig.14 A top view of the sealing rubber sleeve 320 is shown; Fig.16 The representative diagram shows the Fig.15 Sectional view made by straight line EE in.

[0087] like Figures 12 to 16 As shown, in one embodiment of the present invention, the sealing rubber sleeve 320 may include a rubber sleeve body 322 and a clamping wall 323 of an integral structure. Specifically, the sealing rubber sleeve 320 is suitable for being sleeved on the outer periphery of the connecting end 311 via the rubber sleeve body 322. The clamping wall 323 is located at intervals on the outer periphery of the rubber sleeve body 322, so that a clamping groove 324 is formed between the rubber sleeve body 322 and the clamping wall 323. The clamping wall 323 is provided with a clamping hole 3231, and the clamping hole 3231 is arranged along the radial direction of the wire 310 (for example, Fig.13 and Fig.16 ) penetrates the clamping wall 323. Correspondingly, the portion of the wire connecting part 230 adjacent to the notch of the installation slot 231 is inserted into the clamping slot 324, and the outer wall of the wire connecting part 230 can be provided with a clamping boss 233, and the clamping boss 233 is clamped and matched with the clamping hole 3231, thereby realizing the elastic assembly of the wire connecting part 230 and the sealing rubber sleeve 320. Through the above structural design, the utility model can utilize the design that the wire connecting part 230 is partially inserted into the clamping slot 324 to realize the sealing cooperation between the clamping slot 324 and the wire connecting part 230, thereby further extending the sealing relationship between the sealing rubber sleeve 320 and the inside of the wire connecting part 230 (that is, the rubber sleeve body 322 and the installation slot 231) to the outside of the wire connecting part 230, thereby further improving the sealing and insulating effect of the sealing rubber sleeve 320 and the wire connecting part 230.

[0088] like Fig.14 and Fig.15 As shown, based on the structural design that the sealing rubber sleeve 320 includes a rubber sleeve body 322 and a clamping wall 323, in one embodiment of the present invention, the clamping wall 323 can be arranged around the outer circumference of the rubber sleeve body 322 to form a closed ring structure. In other words, the clamping groove 324 formed between the rubber sleeve body 322 and the clamping wall 323 also has a ring-shaped groove structure. Through the above structural design, the utility model can further enhance the sealing insulation effect of the sealing rubber sleeve 320 and the outside of the wire connecting part 230 via the clamping groove 324. In some embodiments, the clamping wall 323 can also be set as multiple discontinuous sections, and the multiple sections of the clamping wall 323 are arranged at intervals along a circumferential path around the rubber sleeve body 322, which is not limited to this embodiment.

[0089] It should be noted that the electromagnetic coils shown in the drawings and described in this specification are only a few examples of many electromagnetic coils that can adopt the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the electromagnetic coils shown in the drawings or described in this specification.

[0090] Based on the above detailed description of several exemplary embodiments of the electromagnetic coil proposed in the present invention, an exemplary embodiment of the electronic valve proposed in the present invention will be described below.

[0091] In one embodiment of the present invention, the electronic valve provided by the present invention includes the electromagnetic coil provided by the present invention and described in detail in the above embodiment.

[0092] In one embodiment of the present invention, the electronic valve provided by the present invention may be an electronic expansion valve. In some embodiments, the electronic valve provided by the present invention may also be other electronic valves with electromagnetic coils, and is not limited to this embodiment.

[0093] It should be noted that the electronic valves shown in the drawings and described in this specification are only a few examples of many electronic valves that can adopt the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the electronic valves shown in the drawings or described in this specification.

[0094] In summary, the electromagnetic coil proposed in the utility model includes a stator assembly, a wire connecting part 230 and a wire assembly; the stator assembly includes a winding 210, a pin 240, a stator housing 250 and an encapsulation structure 220, the winding 210 is arranged in the stator housing 250, and the encapsulation structure 220 covers at least a portion of the winding 210 and at least a portion of the pin 240; the wire connecting part 230 is connected to the stator assembly and is suitable for accommodating the pin 240, and the wire connecting part 230 is provided with a mounting groove 231; the wire assembly includes a wire 310 and a sealing rubber sleeve 320, the wire 310 has a connecting end 311, the connecting end 311 is installed in the mounting groove 231, and is connected to the stator assembly via the pin 240, and the sealing rubber sleeve 320 is sleeved on the outer periphery of the connecting end 311 and is sealed with the mounting groove 231. Through the above structural design, the utility model can use the sealing rubber sleeve 320 to achieve the seal between the wire 310 and the wire connecting part 230, that is, use the sealing rubber sleeve 320 to form a soft sealing structure, thereby replacing existing sealing solutions such as glue potting sealing or injection molding sealing. Accordingly, compared with glue potting sealing, the utility model can shorten the production cycle and reduce the difficulty of the production process of the electromagnetic coil. Moreover, compared with injection molding sealing, the utility model can reduce the difficulty of the production process and avoid poor injection molding. Moreover, compared with the above-mentioned existing sealing solutions, the utility model can also improve the standardization of the electromagnetic coil, which is conducive to the recycling of the wire 310 after the electromagnetic coil is defective, saving material costs. In addition, the utility model directly seals and connects the sealing rubber sleeve 320 connected to the wire 310 with the wire connecting part 230. Compared with the existing solution of "the wire is connected to the sealing sleeve and connected to the connector via the sealing sleeve, the wire and the connector are sealed via the sealing sleeve, and then another sealing sleeve is connected to the connector and connected to the coil connecting part via the sealing sleeve, and the connector and the coil connecting part are sealed via the sealing sleeve", the utility model can use only one component, the sealing rubber sleeve 320, to achieve two-point sealing insulation between it and the wire connecting part 230 and the wire 310, which is beneficial to reduce the number of parts, simplify the structural complexity, and reduce the difficulty of assembly.

[0095] The exemplary embodiments of the electromagnetic coil and the electronic valve proposed by the utility model are described and / or illustrated in detail above. However, the embodiments of the utility model are not limited to the specific embodiments described here. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described here. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated here, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0096] Although the electromagnetic coil and the electronic valve proposed by the present invention have been described according to different specific embodiments, those skilled in the art will recognize that the implementation of the present invention can be modified within the spirit and scope of the claims.

Claims

1. An electromagnetic coil, characterized in that: include: A stator assembly, comprising a winding, a pin, a stator housing and an encapsulation structure, wherein the winding is arranged in the stator housing, and the encapsulation structure covers at least a portion of the winding and at least a portion of the pin; A wire connecting portion, connected to the stator assembly and suitable for accommodating the pin, the wire connecting portion being provided with a mounting groove; as well as A wire assembly comprises a wire and a sealing rubber sleeve, wherein the wire has a connecting end portion, the connecting end portion is installed in the mounting groove and is connected to the stator assembly via the plug pin, the sealing rubber sleeve is sleeved on the outer periphery of the connecting end portion and is sealingly matched with the mounting groove, the sealing rubber sleeve is provided with a through hole for the wire to pass through, and the wire is sealingly matched with the through hole.

2. The electromagnetic coil according to claim 1, characterized in that The wire connection part is provided with a connection hole, the connection hole is suitable for the insertion of the pin, and one end of the connection hole is connected to the inner cavity of the stator housing; the wire connection part is provided with a receiving groove, the receiving groove is arranged at the bottom of the installation groove, and the connection hole is connected to the bottom of the receiving groove; The other end of the connecting hole is connected to the receiving groove, and the connecting hole is connected to the mounting groove via the receiving groove; wherein the connecting end is connected to the plug pin via a connecting structure, and the connecting structure is at least partially received in the receiving groove.

3. The electromagnetic coil according to claim 1, characterized in that: The mounting groove has a first side corresponding to the connection between the wire and the plug pin, and there is a gap between the sealing rubber sleeve and the first side of the mounting groove; or The sealing rubber sleeve fills the installation groove.

4. The electromagnetic coil according to claim 1, characterized in that The outer circumference of at least part of the sealing rubber sleeve is larger than the inner circumference of the mounting groove.

5. The electromagnetic coil according to claim 4, characterized in that The outer circumference size of the end of the sealing rubber sleeve away from the insertion pin is greater than or equal to the outer circumference size of the end close to the insertion pin.

6. The electromagnetic coil according to claim 1, characterized in that The groove wall of the installation groove is provided with a first sealing protrusion, and the installation groove is suitable for pressing the sealing rubber sleeve through the first sealing protrusion to make the sealing rubber sleeve partially concave under pressure, so that the area of ​​the installation groove where the first sealing protrusion is provided has an interference fit with the sealing rubber sleeve.

7. The electromagnetic coil according to claim 6, characterized in that: The first sealing protrusion is a closed ring structure; and / or The groove wall of the installation groove is provided with a first sealing protrusion; and / or The groove wall of the installation groove is provided with at least two first sealing protrusions, and the at least two first sealing protrusions are arranged at intervals in the axial direction of the wire.

8. The electromagnetic coil according to claim 1, characterized in that A second sealing protrusion is arranged on the outer circumference of the sealing rubber sleeve, and the outer circumference size of the sealing rubber sleeve at the second sealing protrusion is larger than the inner circumference size of the mounting groove, so that the sealing rubber sleeve and the mounting groove have an interference fit.

9. The electromagnetic coil according to claim 8, characterized in that: The second sealing protrusion is a closed ring structure; and / or The outer periphery of the sealing rubber sleeve is provided with a second sealing protrusion; and / or At least two second sealing protrusions are arranged on the outer periphery of the sealing rubber sleeve, and the at least two second sealing protrusions are arranged at intervals in the axial direction of the wire.

10. The electromagnetic coil according to claim 1, characterized in that The sealing rubber sleeve comprises a rubber sleeve body and a clamping wall of an integral structure, wherein the sealing rubber sleeve is suitable for being sleeved on the outer periphery of the connecting end portion via the rubber sleeve body, and the clamping walls are located at intervals on the outer periphery of the rubber sleeve body so that a clamping groove is formed between the rubber sleeve body and the clamping walls, and the clamping wall is provided with a clamping hole, which penetrates the wire in the radial direction; a portion of the wire connecting portion adjacent to the notch of the installation groove is inserted into the clamping groove, and a clamping boss is provided on the outer wall of the wire connecting portion, and the clamping boss is clamped and matched with the clamping hole.

11. The electromagnetic coil according to claim 10, characterized in that The clamping wall is arranged around the outer circumference of the rubber sleeve body to form a closed ring structure.

12. An electronic valve, characterized in that: The electromagnetic coil comprises the electromagnetic coil according to any one of claims 1 to 11.

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