Coil components and electric valves

Abstract

The utility model provides a coil component and an electric valve, the coil component comprising: a stator assembly, the stator assembly having an inner hole for the valve body to pass through, the direction of the axis of the inner hole toward the valve port of the valve body being a first direction; a wire structure, one end of the wire structure being electrically connected to a plurality of pins in the stator assembly; a fixed structure encapsulating a portion of the wire structure, the direction of the wire structure located in the fixed structure away from the pin along its own length being a second direction; wherein the angle between the first direction and the second direction is θ, 0°<θ<270°. In this solution, the angle θ between the direction of the axis of the inner hole toward the valve port of the valve body and the direction of the wire structure located in the fixed structure away from the pin along its own length is set to 0°<θ<270°, so that when the wire structure needs to be led upward to connect to the control board during installation of the coil component, the angle at which the wire needs to be bent becomes smaller, shortening the wire length and reducing the risk of damage to the wire due to large-angle bending.

Description

Technical Field

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

[0002] During the installation of electric valves such as electronic expansion valves, the coil assembly is placed on the valve body, and then the wires in the coil assembly need to be connected to the control panel of the whole machine. From the perspective of installation space, the coil assembly and the valve body are both located below the control panel, and the initial lead-out direction of the wire is parallel to the axis of the valve body and away from the control panel. Therefore, the wire needs to be bent and turned at a large angle during the process of connecting the wire to the control panel, which will increase the length of the wire, and long-term large-angle bending is prone to damage the wire. Utility Model Content

[0003] The utility model provides a coil component and an electric valve, which can reduce the bending angle of a wire, shorten the length of the wire, and reduce the risk of damage to the wire due to large-angle bending.

[0004] In order to achieve the above object, according to one aspect of the present invention, the present invention provides a coil component, comprising:

[0005] A stator assembly, wherein the stator assembly has a pin, and the stator assembly has an inner hole for the valve body to pass through, and the direction of the axis of the inner hole toward the valve port of the valve body is a first direction;

[0006] A wire structure, one end of which is electrically connected to a plurality of pins in the stator assembly;

[0007] A fixed structure, wherein the fixed structure encloses a portion of the wire structure, and the direction of the wire structure located in the fixed structure away from the pin along its own length is a second direction;

[0008] The angle between the first direction and the second direction is θ, and 0°<θ<270°.

[0009] Further, 160°≤θ≤200°.

[0010] Further, θ=180°.

[0011] Furthermore, the plug pin and the wire structure are directly connected, or the plug pin and the wire structure are connected through a terminal, or the plug pin and the wire structure are connected through a circuit board.

[0012] Furthermore, the connection position between the wire structure and the plug pin is encapsulated by an injection molding structure or a glue potting structure.

[0013] Furthermore, the coil component further includes an encapsulation structure, which is an injection molding structure, and the encapsulation structure encapsulates at least a portion of the stator assembly.

[0014] Furthermore, the fixing structure is an injection molding structure, the fixing structure and the encapsulation structure are an integral injection molding structure, or the fixing structure and the encapsulation structure are separate injection molding structures.

[0015] Furthermore, the encapsulation structure also encapsulates the connection position between the pin and the wire structure.

[0016] Alternatively, the coil component also includes a connecting portion, which is sealingly connected to the encapsulation structure, and the connecting portion covers a connecting position between the pin and the wire structure. The coil component also includes an insulating cover shell, which is fixedly connected to the connecting portion, and an injection cavity is provided between the insulating cover shell and the connecting portion, and the connecting position between the pin and the wire structure is located in the injection cavity, and a sealing material is poured into the injection cavity, and the sealing material forms the fixed structure.

[0017] Furthermore, the coil component further comprises:

[0018] An upper waterproof cover, the upper waterproof cover covers the top of the stator assembly, the upper waterproof cover is sealed and connected to the encapsulation structure; and / or,

[0019] A lower waterproof cover covers the bottom of the stator assembly, and the lower waterproof cover is sealed and connected to the encapsulation structure.

[0020] According to another aspect of the utility model, the utility model provides an electric valve, which includes a valve body and the above-mentioned coil component, and the valve body passes through the inner hole of the coil component.

[0021] The technical solution of the utility model is applied to provide a coil component, including: a stator assembly, the stator assembly has an inner hole for the valve body to pass through, the direction of the axis of the inner hole toward the valve port of the valve body is a first direction; a wire structure, one end of the wire structure is electrically connected to a plurality of pins in the stator assembly; a fixed structure, the fixed structure encapsulates a part of the wire structure, the direction of the wire structure located in the fixed structure away from the pin along its own length is a second direction; wherein the angle between the first direction and the second direction is θ, 0°<θ<270°. In this solution, the angle θ between the direction of the axis of the inner hole toward the valve port of the valve body and the direction of the wire structure located in the fixed structure away from the pin along its own length is set to 0°<θ<270°, while the value of the angle in the prior art is 0°. By setting the above angle range, when the wire structure needs to be led upward to connect the control board when installing the coil component, the angle at which the wire needs to be bent becomes smaller than that in the prior art, thereby shortening the wire length and reducing the risk of damage to the wire due to large-angle bending. Among them, the angle of a section of the wire structure electrically connected to the pin is limited by the setting of the fixed structure, that is, the extension direction of the wire structure located in the fixed structure is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 A schematic structural diagram of a coil component provided in the first embodiment of the present utility model is shown;

[0024] Figure 2 A schematic structural diagram of a coil component provided in the second embodiment of the present utility model is shown;

[0025] Figure 3 The structure diagram of the coil component provided in the third embodiment of the present utility model is shown;

[0026] Figure 4 The structure diagram of the coil component provided in the fourth embodiment of the present utility model is shown;

[0027] Figure 5 The schematic diagram of the structure of the coil component provided in the fifth embodiment of the present utility model is shown.

[0028] The above drawings include the following reference numerals:

[0029] 10. stator assembly; 20. conductor structure; 30. fixing structure; 40. encapsulation structure; 41. injection cavity; 51. upper waterproof cover; 52. lower waterproof cover; 60. insulating cover shell; 70. connection part. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 5 As shown, an embodiment of the utility model provides a coil component, including: a stator assembly 10, the stator assembly 10 includes a winding, a skeleton and a plurality of pins, the stator assembly 10 has an inner hole for the valve body to pass through, and the direction of the axis of the inner hole toward the valve port of the valve body is a first direction; a wire structure 20, one end of the wire structure 20 is electrically connected to a plurality of pins in the stator assembly 10; a fixed structure 30, the fixed structure 30 encapsulates a part of the wire structure 20, and the direction of the wire structure 20 located in the fixed structure 30 away from the pin along its own length is a second direction; wherein the angle between the first direction and the second direction is θ, 0°<θ<270°. wherein the axis of the valve port is coaxial with the axis of the inner hole.

[0032] In this solution, the angle θ between the direction of the axis of the inner hole of the stator assembly 10 toward the valve port of the valve body and the direction of the wire structure 20 located in the fixed structure 30 away from the pin along its own length is set to 0°<θ<270°, while the value of this angle in the prior art is 0°. Through the above angle range setting, when the wire structure 20 needs to be led upward to connect the control board when installing the coil component, the angle at which the wire needs to be bent becomes smaller compared to the prior art, which shortens the wire length and reduces the risk of damage to the wire due to large-angle bending. Among them, through the setting of the fixed structure 30, the angle of a section of the wire structure 20 electrically connected to the pin is limited, that is, the extension direction of the wire structure 20 located in the fixed structure 30 is fixed.

[0033] like Figures 1 to 3 As shown, in different embodiments, the value of θ can be set to different angles as needed.

[0034] In some embodiments, 160°≤θ≤200°. In this way, the end of the wire structure 20 away from the pin faces upward, and when connecting to the control board located above the stator assembly 10, the wire structure 20 does not need to be bent at a large angle, which avoids the wire structure 20 being easily damaged due to bending, is more convenient during the connection operation, and reduces the required length of the wire structure 20, saving costs.

[0035] like Figure 2 and Figure 4 As shown, in some embodiments, θ=180°, that is, the first direction and the second direction are parallel and in opposite directions.

[0036] In other embodiments, it may be set to 90°≤θ<160°, or 20°<θ<270°.

[0037] The wire structure 20 includes a plurality of wires, an insulating sleeve covering the plurality of wires, and a connector. One end of the wire is connected to the pin, and the other end of the wire is connected to the connector. The connector is used to connect to the control board.

[0038] In this embodiment, the pin and the wire structure 20 can be electrically connected in different ways, for example, the pin and the wire structure 20 are directly connected, or the pin and the wire structure 20 are connected through terminals, or the pin and the wire structure 20 are connected through a circuit board.

[0039] The connection position between the wire structure 20 and the plug pin is encapsulated by an injection molding structure or a glue injection structure, so that the relative position of the wire structure 20 and the plug pin is fixed to prevent the two from being separated, and the waterproof insulation effect can be achieved.

[0040] In some embodiments, the coil component further includes an encapsulation structure 40, which is an injection molding structure. The encapsulation structure 40 encapsulates at least a portion of the stator assembly 10, such as the encapsulation structure 40 encapsulates the windings in the stator assembly 10, or encapsulates a portion of the outer surface of the stator assembly 10, or the encapsulation structure 40 encapsulates the entire outer surface of the stator assembly 10. The encapsulation structure 40 protects the stator assembly 10.

[0041] like Figures 1 to 4 As shown, in some embodiments, the encapsulation structure 40 also encapsulates the connection position between the plug pin and the wire structure 20. This fixes the relative position of the wire structure 20 and the plug pin to prevent the two from being separated, and can play a role in waterproofing and insulating the connection portion 70 between the plug pin and the wire structure 20.

[0042] In this embodiment, the fixed structure 30 is an injection molding structure, and the encapsulation structure 40 and the fixed structure 30 can be set as an integral injection molding structure, that is, at least a portion of the stator assembly 10 and at least a portion of the wire structure 20 are integrally injection molded as inserts; or, in other embodiments of the present application, the encapsulation structure 40 and the fixed structure 30 can also be split injection molding structures, and the two are molded and sealed in different steps.

[0043] like Figure 5As shown, in a specific embodiment, the coil component also includes a connecting portion 70, the connecting portion 70 is sealed and connected to the encapsulation structure 40, the connecting portion 70 covers the connection position of the plug pin and the wire structure 20, the coil component also includes an insulating cover 60, the insulating cover 60 and the connecting portion 70 are fixedly connected, an injection cavity 41 is provided between the insulating cover 60 and the connecting portion 70, the connection position of the plug pin and the wire structure 20 is located in the injection cavity 41, the injection cavity 41 is filled with a sealing material, and the sealing material forms a fixed structure 30. In this way, the direction of a part of the wire structure 20 electrically connected to the plug pin is limited, and sealing and protection are achieved by pouring the sealing material. Among them, the connecting portion 70 is sealed and connected to the encapsulation structure 40, and the two can be an integrally formed structure or a split-formed structure. The sealing material can be a sealant or the like.

[0044] like Figure 4 As shown, in some embodiments, the coil component further includes: an upper waterproof cover 51, the upper waterproof cover 51 covers the top of the stator assembly 10, and the upper waterproof cover 51 is sealed and connected to the encapsulation structure 40; and / or, a lower waterproof cover 52, the lower waterproof cover 52 covers the bottom of the stator assembly 10, and the lower waterproof cover 52 is sealed and connected to the encapsulation structure 40. The upper waterproof cover 51 can prevent water from entering the top of the stator assembly 10, and the lower waterproof cover 52 can prevent water from entering the bottom of the stator assembly 10, thereby improving the waterproof performance of the coil component.

[0045] The utility model also provides an electric valve, which includes a valve body and the above-mentioned coil component, and the valve body passes through the inner hole of the coil component. The electric valve can be a valve of the type of electronic expansion valve. In this solution, the angle θ between the direction of the axis of the inner hole of the stator assembly 10 toward the valve port of the valve body and the direction of the wire structure 20 along its own length away from the pin is set to 0°<θ<270°, while the value of this angle in the prior art is 0°. Through the above-mentioned angle range setting, when the wire structure 20 needs to be led upward to connect the control board during the installation of the coil component, the angle at which the wire needs to be bent becomes smaller compared with the prior art, thereby shortening the length of the wire and reducing the risk of damage to the wire due to large-angle bending.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0049] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

Claims

1. A coil component, characterized in that: include: A stator assembly (10), the stator assembly (10) having a pin, the stator assembly (10) having an inner hole for a valve body to pass through, the direction of the axis of the inner hole toward the valve port of the valve body being a first direction; A wire structure (20), one end of the wire structure (20) being electrically connected to a plurality of pins in the stator assembly (10); A fixed structure (30), wherein the fixed structure (30) encloses a portion of the conductive wire structure (20), and the direction of the conductive wire structure (20) located in the fixed structure (30) away from the plug pin along its own length is a second direction; The angle between the first direction and the second direction is θ, and 0°<θ<270°.

2. The coil component according to claim 1, characterized in that 160°≤θ≤200°.

3. The coil component according to claim 2, characterized in that θ=180°.

4. The coil component according to claim 1, characterized in that The plug pin and the conductor structure (20) are directly connected, or the plug pin and the conductor structure (20) are connected via a terminal, or the plug pin and the conductor structure (20) are connected via a circuit board.

5. The coil component according to claim 1, characterized in that The connection position between the conductor structure (20) and the plug pin is encapsulated by an injection molding structure or a glue potting structure.

6. The coil component according to claim 1, characterized in that The coil component further comprises an encapsulation structure (40), wherein the encapsulation structure (40) is an injection molding structure, and the encapsulation structure (40) encapsulates at least a portion of the stator assembly (10).

7. The coil component according to claim 6, characterized in that The fixing structure (30) is an injection-molded structure, the fixing structure (30) and the encapsulation structure (40) are an integral injection-molded structure, or the fixing structure (30) and the encapsulation structure (40) are separate injection-molded structures.

8. The coil component according to claim 6, characterized in that The encapsulation structure (40) also encapsulates the connection position between the pin and the wire structure (20).

9. The coil component according to claim 6, characterized in that: The coil component also includes a connecting portion (70), the connecting portion (70) and the encapsulation structure (40) are sealed and connected, and the connecting portion (70) covers the connection position between the plug pin and the wire structure (20). The coil component also includes an insulating cover (60), the insulating cover (60) and the connecting portion (70) are fixedly connected, and an injection cavity (41) is provided between the insulating cover (60) and the connecting portion (70), and the connection position between the plug pin and the wire structure (20) is located in the injection cavity (41), and the injection cavity (41) is filled with a sealing material, and the sealing material forms the fixed structure (30).

10. The coil component according to claim 6, characterized in that The coil component further comprises: an upper waterproof cover (51), the upper waterproof cover (51) covers the top of the stator assembly (10), the upper waterproof cover (51) and the encapsulation structure (40) are sealed and connected; and / or, A lower waterproof cover (52), the lower waterproof cover (52) covers the bottom of the stator assembly (10), and the lower waterproof cover (52) and the encapsulation structure (40) are sealed and connected.

11. An electric valve, characterized in that: The electric valve includes a valve body and the coil component according to any one of claims 1 to 10, wherein the valve body passes through an inner hole of the coil component.

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