Coil assemblies, solenoid valves, refrigeration equipment, and automobiles

Abstract

This utility model discloses a coil assembly, a solenoid valve, a refrigeration device, and an automobile, relating to the field of solenoid valve technology. The coil assembly includes: a winding; a magnetic conductor, the magnetic conductor being disposed corresponding to the winding; and a plastic-coated component, the winding and the magnetic conductor being integrally injection molded and fixed by the plastic-coated component. The technical solution of this utility model reduces process complexity and production costs.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and in particular to a coil assembly, a solenoid valve, a refrigeration device, and an automobile. Background Technology

[0002] Solenoid valves are widely used in industrial automation, automotive, and home appliances to control the flow of fluids. The coil assembly is the core component of a solenoid valve.

[0003] Existing solenoid valve coil assemblies typically consist of copper wire windings wound on a frame. An insulating, sealed plastic shell is injection molded around the windings, and a magnetic conductor is mounted on the outer periphery of this shell. The plastic shell provides physical protection and facilitates heat conduction and dissipation. Simultaneously, an anti-corrosion coating needs to be applied separately to the outer surface of the magnetic conductor to improve corrosion resistance. However, this approach increases production steps and equipment investment, resulting in complex processes and high production costs. Utility Model Content

[0004] The main objective of this invention is to provide a coil assembly, a solenoid valve, a refrigeration device, and an automobile, aiming to solve at least one of the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides a coil assembly, which includes:

[0006] Winding;

[0007] A magnetic conductor, wherein the magnetic conductor is disposed corresponding to the winding; and

[0008] The winding and the magnetic conductor are integrally injection molded and fixed by the plastic-coated component.

[0009] In one embodiment, the plastic-coated part includes a first plastic-coated portion and a second plastic-coated portion integrally injection molded, wherein the first plastic-coated portion covers the outside of the magnetic conductor and the second plastic-coated portion covers the outside of the winding.

[0010] In one embodiment, the magnetic conductor surrounds the winding, the magnetic conductor has a communicating recess that penetrates the magnetic conductor, and the second plastic-coated portion penetrates the communicating recess and is connected to the first plastic-coated portion.

[0011] In one embodiment, the magnetic conductor is cylindrical, and the winding is disposed inside the magnetic conductor.

[0012] In one embodiment, the magnetic conductor includes a surrounding plate and end caps. The surrounding plate is wound into a cylinder with openings at both ends, and each opening is provided with an end cap. The surrounding plate and the two end caps together enclose the winding.

[0013] In one embodiment, the magnetic conductor has a first mounting hole, the first plastic-coated portion has a second mounting hole, the first mounting hole and the second mounting hole are coaxially arranged, the diameter of the second mounting hole is larger than the diameter of the first mounting hole so that the magnetic conductor is partially exposed in the second mounting hole to form an exposed surface, and the exposed surface is provided with a rust-proof layer.

[0014] In one embodiment, the coil assembly further includes an electrical connector electrically connected to the winding, the magnetic conductor having a communicating notch, the electrical connector passing through the communicating notch, the plastic-coated part having a connector plug having a plug cavity, the electrical connector extending to the plug cavity, the extension direction of the plug cavity being parallel or perpendicular to the axial direction of the winding.

[0015] In one embodiment, when the extension direction of the plug cavity is parallel to the axial direction of the winding, the lower surface of the connector is provided with a hole, and the hole is not in communication with the plug cavity.

[0016] To achieve the above objectives, this utility model provides a solenoid valve, which includes a valve body and the coil assembly described above, wherein the coil assembly is disposed in the valve body.

[0017] To achieve the above objectives, this utility model provides a refrigeration device, which includes a refrigeration pipeline and the solenoid valve described above, wherein the solenoid valve is disposed in the refrigeration pipeline.

[0018] To achieve the above objectives, this utility model provides an automobile that includes the refrigeration equipment described above.

[0019] The technical solution of this application, by placing the winding on the magnetic conductor and using a plastic-coated component to integrally injection mold the winding and the magnetic conductor, simultaneously achieves physical protection for the winding and surface corrosion protection for the magnetic conductor. Moreover, during the injection molding process, the plastic-coated component is directly injection molded onto the surface of the magnetic conductor, resulting in a denser and more continuous seal. This effectively prevents moisture, salt spray, and other corrosive media from contacting the magnetic conductor, improving its corrosion resistance and ensuring the stable operation of the magnetic circuit system. Compared to separately adding an anti-corrosion coating to the outer periphery of the magnetic conductor, this application eliminates complex surface anti-corrosion processes such as electroplating, spraying, or chemical treatment, simplifying the production process, reducing equipment investment and labor costs, and minimizing air pollution from coating processes, making it more environmentally friendly. Furthermore, the integral injection molding structure tightly integrates the magnetic conductor, winding, and plastic-coated component, improving the overall mechanical strength and structural stability of the coil assembly, reducing interface gaps between components, facilitating efficient magnetic flux conduction and uniform heat dissipation, and improving the working efficiency and reliability of the solenoid valve. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the coil assembly of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0023] Figure 3 This is another structural schematic diagram of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0024] Figure 4 This is a top view of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0025] Figure 5 This is a top view of the enclosure of the magnetic conductor in an embodiment of the coil assembly of this utility model.

[0026] Figure 6 This is a cross-sectional structural diagram of the enclosure of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the end cap of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0028] Figure 8 This is another cross-sectional structural diagram of the enclosure of the magnetic conductor in an embodiment of the coil assembly of this utility model;

[0029] Figure 9 This is a three-dimensional structural diagram of an embodiment of the coil assembly of this utility model;

[0030] Figure 10 This is a three-dimensional structural diagram of another embodiment of the coil assembly of this utility model.

[0031] Explanation of icon numbers:

[0032] 100. Winding; 200. Magnetic conductor; 210. Enclosure; 211. Connecting recess; 212. Connecting notch; 220. End cap; 221. Arc edge; 222. Straight edge; 223. Injection channel; 224. First mounting hole; 300. First connecting structure; 310. First connecting protrusion; 320. First connecting recess; 400. Plastic-coated part; 410. First plastic-coated part; 411. Second mounting hole; 420. Second plastic-coated part; 430. Connector; 431. Plug cavity; 500. Second connecting structure; 510. Second connecting protrusion; 520. Second connecting recess; 600. Electrical connector.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present utility model.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, in the embodiments of this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the embodiments of this utility model.

[0039] Existing solenoid valve coil assemblies typically consist of copper wire windings wound on a frame and a magnetic conductor positioned around the outer periphery of the windings. An insulating, sealed plastic shell is usually injection-molded around the outer periphery of the windings, providing physical protection and facilitating heat conduction and dissipation. However, since the magnetic conductor is made of cold-rolled steel, a surface anti-rust treatment is required to ensure corrosion resistance; that is, an anti-corrosion coating needs to be applied separately to the outer surface of the magnetic conductor to improve its corrosion resistance. However, this approach increases production steps and equipment investment, resulting in complex processes and higher production costs.

[0040] In view of this, the present invention provides a coil assembly, a solenoid valve, a refrigeration device, and an automobile, which integrate the magnetic conductor, winding, and plastic coating through integral injection molding. The plastic coating is directly injection molded on the surface of the magnetic conductor. Compared with adding a separate anti-corrosion coating to the outer periphery of the magnetic conductor, this application eliminates complex surface anti-corrosion processes such as electroplating, spraying, or chemical treatment, simplifies the production process, reduces equipment investment and labor costs, reduces air pollution caused by coating processes, and is more environmentally friendly.

[0041] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0042] like Figure 1 As shown in the figure, this utility model embodiment proposes a coil assembly, the coil assembly comprising:

[0043] Winding 100 is used to connect to an external power source;

[0044] A magnetic conductor 200, disposed corresponding to the winding 100, is made of a soft magnetic metal material with good magnetic and thermal conductivity, and provides a magnetic path for the winding 100. The magnetic conductor 200 can be a semi-enclosed structure, specifically a three-sided or four-sided magnetic conductor structure, which is not limited here; and

[0045] The plastic-coated part 400 is used to integrally injection mold the winding 100 and the magnetic conductor 200. It is understood that the plastic-coated part 400 is integrally injection molded to form the winding 100 and the magnetic conductor 200, thus covering and fixing the winding 100 and the magnetic conductor 200 into a single unit.

[0046] In this embodiment, the winding 100 is placed on the magnetic conductor 200, and a plastic-coated part 400 is used to integrally injection mold and fix the winding 100 and the magnetic conductor 200. This achieves both physical protection of the winding 100 and surface corrosion protection of the magnetic conductor 200. Furthermore, during the injection molding process, the plastic-coated part 400 is directly injection molded onto the surface of the magnetic conductor 200, resulting in a denser and more continuous seal. This effectively prevents moisture, salt spray, and other corrosive media from contacting the magnetic conductor 200, improving its corrosion resistance and ensuring the stable operation of the magnetic circuit system. Compared to separately adding an anti-corrosion coating to the outer periphery of the magnetic conductor 200, this application eliminates complex surface anti-corrosion processes such as electroplating, spraying, or chemical treatment, simplifying the production process, reducing equipment investment and labor costs, and minimizing air pollution from coating processes, making it more environmentally friendly. In addition, the one-piece injection molding structure tightly integrates the magnetic conductor 200, the winding 100, and the plastic-coated part 400, improving the overall mechanical strength and structural stability of the coil assembly, reducing the interface gaps between various components, which is conducive to the efficient conduction of magnetic flux and the uniform dissipation of heat, thus improving the working efficiency and reliability of the solenoid valve.

[0047] In one embodiment of this utility model, reference is made to Figure 1 The plastic-coated part 400 includes a first plastic-coated portion 410 and a second plastic-coated portion 420 integrally injection molded. The first plastic-coated portion 410 covers the exterior of the magnetic conductor 200, and the second plastic-coated portion covers the exterior of the winding 100. It is understood that during the injection molding process, some molten plastic enters between the magnetic conductor 200 and the winding 100 to form the second plastic-coated portion 420 covering the winding 100, while some molten plastic forms the first plastic-coated portion 410 on the exterior of the magnetic conductor 200. The first plastic-coated portion 410 and the second plastic-coated portion 420 together form the plastic-coated part, improving the structural coupling and overall rigidity between the components and preventing loosening or displacement during use. Furthermore, the first plastic-coated portion 410 and the second plastic-coated portion 420 are integrally injection molded, with no seams between them, resulting in good interface bonding, improved sealing and structural strength, prevention of moisture penetration along the interlayer, and enhanced overall reliability.

[0048] In one embodiment of this utility model, reference is made to Figure 6The magnetic conductor 200 surrounds the winding 100. The magnetic conductor 200 has a communicating recess 211 that penetrates the magnetic conductor 200. The second plastic-coated portion 420 penetrates the communicating recess 211 and connects to the first plastic-coated portion 410. It can be understood that the magnetic conductor 200 completely covers the winding 100, forming a basically closed magnetic circuit structure, which can reduce magnetic flux leakage, improve the continuity of the magnetic circuit and magnetic conductivity, and enhance overall performance. Furthermore, through the communicating recess 211, during the integral injection molding process of the magnetic conductor 200 and the winding 100, molten plastic can enter between the winding 100 and the magnetic conductor 200 through the communicating recess 211, filling the tiny gaps between them and forming a seamless sealing structure. This effectively prevents moisture or contaminants from entering the interior of the winding 100, extending its service life. Simultaneously, it can also improve the reliability of the winding 100's fixation.

[0049] In one embodiment of this utility model, the magnetic conductor 200 is cylindrical, and the winding 100 is disposed inside the magnetic conductor 200. Specifically, the cylindrical shape of the magnetic conductor 200 allows for better fit to the coil, ensuring complete coverage of the coil while reducing material usage and further lowering processing costs.

[0050] In one embodiment of this utility model, reference is made to Figure 2 and Figure 3The magnetic conductor 200 includes a surrounding plate 210 and end caps 220. The surrounding plate 210 is wound into a cylinder with openings at both ends, and each opening is provided with an end cap 220. The surrounding plate 210 and the two end caps 220 together enclose the winding 100. It can be understood that the surrounding plate 210 is an integrally stamped plate structure, which is then rolled into a cylinder. Each opening is provided with an end cap 220, and the surrounding plate 210 and the two end caps 220 together enclose the winding 100. That is, in this embodiment, the surrounding plate 210 and the end caps 220 are separate structures. The cooperation of the surrounding plate 210 and the end caps 220 forms a fully enclosed structure, which can completely enclose the entire winding 100. This increases the magnetic conductive area and improves magnetic conductivity and heat dissipation performance. Moreover, the integral surrounding plate 210 wound into a cylinder reduces the number of connecting parts and splicing seams, simplifies the process, and further improves magnetic conductivity. In this embodiment, the cylinder is integrally wound and formed by the surrounding plate 210, using only a single component. Compared to the traditional method of splicing multiple magnetic plates to form a fully enclosed structure, this reduces the number of connectors, simplifies the assembly process between connectors, and lowers the overall structural complexity and processing costs, facilitating large-scale mass production. Simultaneously, it reduces seams or air gaps caused by splicing multiple plates, effectively reducing magnetic resistance in the magnetic circuit and improving the uniformity and stability of magnetic flux conduction. Furthermore, the wound cylinder has high structural rigidity and consistency, extending its service life. Moreover, the magnetic conductor 200 of the cylinder can better fit the coil, ensuring complete coil coverage while reducing material usage and further lowering processing costs.

[0051] In one embodiment of this utility model, reference is made to Figure 4 A first connecting structure 300 is provided between the end cap 220 and the surrounding plate 210, and the first connecting structure 300 fixes the end cap 220 and the surrounding plate 210 together. Thus, the first connecting structure 300 can fix the end cap 220 and the surrounding plate 210 together, forming a closed space to cover the winding 100, ensuring the continuity of the magnetic circuit along the axial and radial directions, and also improving the connection strength to ensure connection reliability under vibration conditions. The first connecting structure 300 can be a welded structure, a snap-fit ​​structure, an adhesive structure, etc., and is not limited here.

[0052] In one embodiment of this utility model, reference is made to Figures 4 to 7The first connecting structure 300 includes a first connecting protrusion 310 and a first connecting recess 320 that are mutually connected. One of the end cap 220 and the surrounding plate 210 is provided with the first connecting protrusion 310, and the other of the end cap 220 and the surrounding plate 210 is provided with the first connecting recess 320. It is understood that in this embodiment, the end cap 220 and the surrounding plate 210 are fixedly connected through the insertion and engagement of the first connecting protrusion 310 and the first connecting recess 320. This eliminates the need for additional connection methods such as screws, welding, or bonding, reducing the use of auxiliary materials and process steps, avoiding reliability issues caused by welding heat deformation or adhesive aging, improving the continuity of magnetic conductivity, and facilitating efficient magnetic flux conduction. Furthermore, the first connecting protrusion 310 and the first connecting recess 320 can be integrally formed on the end cap 220 or the surrounding plate 210 using conventional sheet metal processes such as stamping and bending, which is simple to process, low in cost, and does not require additional independent parts. Optionally, the first connecting protrusion 310 and the first connecting recess 320 are interference fits.

[0053] In one embodiment of this utility model, reference is made to Figure 4 and Figure 7 The end cap 220 includes two opposing arc edges 221 and a straight edge 222 connecting the two arc edges 221. The straight edge 222 is located inside the enclosure 210. Thus, an injection channel 223 is formed between the straight edge 222 and the inner wall of the enclosure 210. During the injection molding process of the magnetic conductor 200 and the winding 100, the molten plastic can also enter between the winding 100 and the magnetic conductor 200 through the injection channel 223, further improving the reliability of the sealing and fixing of the winding 100.

[0054] In one embodiment of this utility model, reference is made to Figure 3 The enclosure plate 210 has a first end and a second end along its circumference. A second connecting structure 500 is provided between the first end and the second end, and the second connecting structure 500 fixes the first end and the second end together so that the enclosure plate 210 is wound into a cylinder. When the enclosure plate 210 is not wound into a cylinder, it is a square plate structure formed by stamping. Here, the first end and the second end refer to the two ends of the enclosure plate 210 in the length direction when it is not wound into a cylinder. In order to improve the structural reliability of the enclosure plate 210 when it is wound into a cylinder, the second connecting structure 500 is provided between the first end and the second end. The second connecting structure 500 can connect and fix the first end and the second end together, making the structure of the cylinder formed by the enclosure plate 210 more reliable and maintaining the continuity of magnetic conductivity.

[0055] In one embodiment of this utility model, reference is made to Figure 3 and Figure 8The second connection structure 500 includes a second connecting protrusion 510 and a second connecting recess 520 that are fitted together. One of the first end and the second end is provided with the second connecting protrusion 510, and the other of the first end and the second end is provided with the second connecting recess 520. It is understood that the fixed connection between the first end and the second end is achieved through the mating insertion of the second connecting protrusion 510 and the second connecting recess 520, without relying on additional connection methods such as screws, welding, or adhesives, reducing the use of auxiliary materials and process steps, and resulting in lower costs.

[0056] In one embodiment of this utility model, the outer diameter of the free end of the second connecting protrusion 510 is larger than the outer diameter of the fixed end of the second connecting protrusion 510. Thus, after assembly, the free end of the second connecting protrusion 510 and the second connecting recess 520 form an interference fit or a snap lock, effectively preventing the end cover 220 and the surrounding plate 210 from loosening or falling off during vibration and impact, and effectively improving the connection reliability of the end cover 220 and the surrounding plate 210.

[0057] In one embodiment of this utility model, reference is made to Figure 7 The magnetic conductor 200 is provided with a first mounting hole 224, optionally located on the end cap 220. The first plastic-coated portion 410 is provided with a second mounting hole 411, coaxially arranged with the first mounting hole 224 and the second mounting hole 411. The diameter of the second mounting hole 411 is larger than that of the first mounting hole 224, causing a portion of the magnetic conductor 200 to be exposed in the second mounting hole 411, forming an exposed surface. It is understood that the first mounting hole 224 is used to install the valve body of the solenoid valve. Because the material of the magnetic conductor 200 is relatively hard, while the material of the first plastic-coated portion 410 is relatively soft, to ensure installation reliability, the valve body needs to be in contact with the harder magnetic conductor 200 during valve body installation. Therefore, in this embodiment, the diameter of the second mounting hole 411 is larger than that of the first mounting hole 224, which avoids the valve body, allowing the valve body to be fixedly connected to the magnetic conductor 200, improving the stability of the valve body installation. Furthermore, since the magnetic conductor 200 is not injection molded, an exposed surface is formed around the periphery of the first mounting hole 224. The exposed surface is provided with an anti-rust layer, which can improve the corrosion resistance of the magnetic conductor 200 on the exposed surface.

[0058] In one embodiment of this utility model, reference is made to Figure 1 , Figure 6The coil assembly further includes an electrical connector 600 electrically connected to the winding 100. The magnetic conductor 200 has a connecting notch 212, through which the electrical connector 600 passes. It is understood that the connecting notch 212 facilitates the passage of the electrical connector 600 to connect the winding 100 and an external power source. Optionally, the connecting notch 212 is located in the enclosure 210, and when the enclosure 210 is wound into a cylinder, the connecting notch 212 connects the outside and inside of the cylinder. (Refer to...) Figure 1 , Figure 9 as well as Figure 10 The plastic-coated component 400 has a connector 430, which has a insertion cavity 431. The electrical connector 600 extends into the insertion cavity 431, and the extension direction of the insertion cavity 431 is parallel or perpendicular to the axial direction of the winding 100. It is understood that the plug of an external power source can be inserted into the insertion cavity 431 and connected to the electrical connector 600, thereby achieving an electrical connection between the winding 100 and the external power source. In this embodiment, the extension direction of the insertion cavity 431 is perpendicular or parallel to the axial direction of the winding 100, which can meet different installation requirements. After installation, the opening of the insertion cavity 431 is horizontal, thus preventing water accumulation caused by the opening of the insertion cavity 431 facing upwards and avoiding waterproofing failure.

[0059] In one embodiment of this utility model, when the extending direction of the insertion cavity 431 is parallel to the axial direction of the winding 100, the lower surface of the connector 430 is provided with a hole. This allows for control of the wall thickness of the connector 430, ensuring its strength while preventing excessive material thickness in localized areas during injection molding, which could lead to poor venting. This reduces porosity during injection molding, improves molding quality, and also achieves material savings and weight reduction. Specifically, the hole is not connected to the insertion cavity, preventing dust, moisture, etc., from entering the insertion cavity through the hole and affecting the reliability of the electrical connection.

[0060] To achieve the above objectives, this utility model provides a solenoid valve, which includes a valve body and the aforementioned coil assembly, wherein the coil assembly is disposed on the valve body. Specifically, the specific structure of the coil assembly is as described in the above embodiments. Since this solenoid valve adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0061] A solenoid valve generally includes a valve body and a coil assembly. The valve body includes a valve cover, valve seat, piston assembly, housing, moving iron core assembly, and stationary iron core assembly. The valve seat has a valve port. The valve cover and valve seat are connected to form a valve cavity. The piston assembly is slidably disposed in the valve cavity. The housing, moving iron core, and stationary iron core are assembled together and fixed to the valve cover. The coil assembly is sleeved on the stationary iron core assembly. When the coil assembly is energized, it magnetizes the stationary iron core. When the coil assembly is de-energized, it demagnetizes the stationary iron core. Through the energization and de-energization of the coil assembly, the stationary iron core can drive the moving iron core to reciprocate under the action of the magnetic field. The reciprocating movement of the moving iron core can drive the piston assembly to reciprocate axially in the valve cavity. The reciprocating movement of the piston assembly can close and open the valve port. When the piston assembly opens the valve port, the solenoid valve is in the connected state. When the piston assembly closes the valve port, the solenoid valve is in the disconnected state.

[0062] To achieve the above objectives, this utility model provides a refrigeration device, which includes a refrigeration pipeline and the aforementioned solenoid valve, wherein the solenoid valve is disposed in the refrigeration pipeline. It is understood that the solenoid valve can control the flow of the medium in the refrigeration pipeline. Specifically, the specific structure of the solenoid valve is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0063] To achieve the above objectives, this utility model provides an automobile comprising the aforementioned refrigeration equipment. Specifically, the automobile can be a new energy vehicle or a conventional gasoline-powered vehicle. The new energy vehicle can be a pure electric vehicle with an electric motor as the primary driving force, or a hybrid electric vehicle with both an internal combustion engine and an electric motor as primary driving forces. Specifically, the specific structure of the refrigeration equipment is as described in the above embodiments. Since this automobile adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon further here.

[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model embodiments. Any equivalent structural transformations made under the technical concept of the present utility model using the description and drawings of the present utility model embodiments, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model embodiments.

Claims

1. A coil assembly, characterized in that, The coil assembly includes: Winding; A magnetic conductor, wherein the magnetic conductor is disposed corresponding to the winding; and The winding and the magnetic conductor are integrally injection molded and fixed by the plastic-coated component.

2. The coil assembly as claimed in claim 1, characterized in that, The plastic-coated part includes a first plastic-coated part and a second plastic-coated part integrally injection molded. The first plastic-coated part covers the outside of the magnetic conductor, and the second plastic-coated part covers the outside of the winding.

3. The coil assembly as described in claim 2, characterized in that, The magnetic conductor surrounds the winding, and the magnetic conductor has a communicating recess that penetrates the magnetic conductor. The second plastic-coated part penetrates the communicating recess and is connected to the first plastic-coated part.

4. The coil assembly as claimed in claim 3, characterized in that, The magnetic conductor is cylindrical, and the winding is located inside the magnetic conductor.

5. The coil assembly as claimed in claim 4, characterized in that, The magnetic conductor includes a surrounding plate and end caps. The surrounding plate is wound into a cylinder with openings at both ends. Each opening is provided with an end cap. The surrounding plate and the two end caps together enclose the winding.

6. The coil assembly as claimed in claim 2, characterized in that, The magnetic conductor has a first mounting hole, and the first plastic-coated part has a second mounting hole. The first mounting hole and the second mounting hole are coaxially arranged. The diameter of the second mounting hole is larger than the diameter of the first mounting hole, so that the magnetic conductor is partially exposed in the second mounting hole to form an exposed surface. The exposed surface is provided with an anti-rust layer.

7. The coil assembly as claimed in claim 1, characterized in that, The coil assembly further includes an electrical connector electrically connected to the winding. The magnetic conductor has a communicating notch, the electrical connector passes through the communicating notch, the plastic-coated part forms a connector, the connector has a plug cavity, the electrical connector extends to the plug cavity, and the extension direction of the plug cavity is parallel or perpendicular to the axial direction of the winding.

8. The coil assembly as claimed in claim 7, characterized in that, When the extension direction of the plug cavity is parallel to the axial direction of the winding, the lower surface of the connector is provided with a hole, and the hole is not connected to the plug cavity.

9. A solenoid valve, characterized in that, The solenoid valve includes a valve body and a coil assembly as described in any one of claims 1 to 8, the coil assembly being disposed in the valve body.

10. A refrigeration device, characterized in that, The refrigeration equipment includes refrigeration piping and a solenoid valve as described in claim 9, wherein the solenoid valve is disposed in the refrigeration piping.

11. A car, characterized in that, The vehicle includes the refrigeration equipment as described in claim 10.

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