A compression spring for an armature, a compression spring and armature matching structure and a relay

Abstract

The utility model discloses a compression spring for armature, the cooperation structure of compression spring and armature and relay, including compression spring body, the one end of compression spring body forms the elastic pressure head for the cooperation of the armature of relay, and the other end forms the connecting portion for fixing with the yoke iron of relay. The utility model discloses the connecting portion is formed on the compression spring body, and the yoke iron of relay is fixed through this connecting portion, so, compared with the compression spring assembly structure of the existing plug -in in the plastic base of relay, can effectively avoid the scratch of compression spring to plastic base to install fixedly on the yoke iron, will not produce the plastic fluff to prevent the bad influence to the reliable contact of moving contact and static contact, and, the compression spring body is fixedly connected with the yoke iron through its connecting portion and compares the plug -in fixed of compression spring and plastic base, can effectively improve the installation stability of compression spring body and the accuracy of installation position, to improve product parameter consistency.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a compression spring for an armature, a matching structure between the compression spring and the armature, and a relay. Background Technology

[0002] An existing relay features a protective armature compression spring. The spring's bottom is inserted into a socket on the base, and a bent tongue extends from the top of the spring towards the armature. The armature has a corresponding socket, into which the tongue is inserted. In this design, because the spring's bottom is inserted into the base, during assembly, the spring may scrape against the inner wall of the socket, generating plastic lint. This can negatively impact the stable contact between the moving and stationary contacts. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a compression spring for an armature. The compression spring is fixed to the yoke and does not require insertion into the base. No scratching of plastic capillaries will occur during the assembly of the compression spring.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A compression spring for an armature includes a compression spring body, one end of which has an elastic pressure head for engaging with the armature of a relay, and the other end has a connecting portion for fixing with the yoke of the relay.

[0005] Furthermore, the compression spring body is configured to be fixedly connected to the yoke by a connecting part.

[0006] Furthermore, the connecting part is fixed to the outer wall of the side plate of the yoke by welding or riveting.

[0007] Furthermore, a clearance is provided on the compression spring body to allow the drive end of the armature to pass through the clearance of the compression spring body and swing freely.

[0008] Furthermore, the elastic pressure head has a bent structure.

[0009] Furthermore, the compression spring body is also provided with an elastic buffer part for buffering the reset action of the drive end of the armature.

[0010] Furthermore, the elastic buffer is a bent spring sheet located at the tail of the connecting part.

[0011] Based on the same inventive concept, this utility model also provides a matching structure of a compression spring and an armature, including an armature and a compression spring for the armature as described above. A concave groove is provided at the bend of the armature, and the end of the elastic pressure head on the compression spring body is adapted to be engaged in the concave groove. The elastic pressure head provides support, positioning and anti-dislodgement function for the armature.

[0012] Furthermore, a bulge structure is provided on the inner wall of the drive end of the armature.

[0013] Based on the same inventive concept, this utility model also provides a relay, including the above-described compression spring for the armature or the above-described combination structure of the compression spring and the armature.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] In the armature compression spring, the coupling structure between the compression spring and the armature, and the relay described in this utility model, a connecting part is formed on the compression spring body. The compression spring is fixed to the yoke of the relay through this connecting part. In this way, compared with the existing compression spring assembly structure that is inserted into the plastic base of the relay, fixing the compression spring to the yoke can effectively avoid the compression spring scratching the plastic base and prevent the generation of plastic lint, which would have an adverse effect on the reliable contact of the moving and stationary contacts. Furthermore, the compression spring body is fixedly connected to the yoke through its connecting part, which can effectively improve the installation stability and installation position accuracy of the compression spring body compared with the insertion and fixing of the compression spring to the plastic base, so as to improve the consistency of product parameters. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the assembly structure of the compression spring, yoke, and armature used in the armature according to an embodiment of this utility model.

[0017] Figure 2 This is a front view of the assembly structure of the compression spring, yoke, and armature used in the armature according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the relay according to an embodiment of the present invention.

[0019] Label Explanation:

[0020] 1. Compression spring body, 2. Armature, 3. Yoke, 11. Elastic pressure head, 12. Connecting part, 13. Clearance gap, 14. Elastic buffer part, 21. Drive end, 22. Concave groove, 211. Protruding bud structure. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please refer to the appendix. Figure 1 To be continued Figure 3 One embodiment of this utility model provides a compression spring for an armature, including a compression spring body 1. One end of the compression spring body 1 has an elastic pressure head 11 for engaging with the armature 2 of a relay, and the other end has a connecting portion 12 for fixing to the yoke 3 of the relay. The compression spring body 1 is configured to be fixedly connected to the yoke 3 by the connecting portion 12. It is understood that in this embodiment, the compression spring body 1 has a connecting portion 12, which is used to fix it to the yoke of the relay. Therefore, compared to the existing compression spring assembly structure that inserts into the plastic base of the relay, fixing the compression spring to the yoke 3 effectively avoids the compression spring scratching the plastic base, preventing the generation of plastic lint that could negatively affect the reliable contact of the moving and stationary contacts. Furthermore, the fixed connection of the compression spring body 1 to the yoke 3 via its connecting portion 12, compared to the insertion and fixing of the compression spring to the plastic base, effectively improves the installation stability and accuracy of the installation position of the compression spring body 1, thereby improving the consistency of product parameters.

[0024] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, the connecting part 12 is fixed to the outer wall of the side plate of the yoke 3 by welding or riveting. However, those skilled in the art should understand that in other embodiments, provided that the connection strength between the compression spring body 1 and the yoke 3 is sufficient, the connecting part 12 may also be a snap-fit ​​connection structure or other existing conventional fixed connection structure, and is not limited to the specific implementation disclosed in this embodiment.

[0025] Please refer to the appendix. Figure 1 To be continued Figure 3 In one preferred embodiment, a clearance 13 is provided on the compression spring body 1 to allow the drive end 21 of the armature 2 to pass through the clearance 13 and swing freely. Furthermore, the elastic pressure head 11 has a bent structure.

[0026] Please refer to the appendix. Figure 1 To be continued Figure 3In one preferred embodiment, the compression spring body 1 is further provided with an elastic buffer portion 14 for buffering the reset action of the drive end 21 of the armature 2. The elastic buffer portion 14 is a bent spring sheet located at the tail of the connecting portion 12. In this embodiment, the elastic buffer portion 14 of the bent spring sheet is integrally formed with the connecting portion 12, and the bent spring sheet is appropriately bent to generate a certain pre-force on the armature 3 to ensure that the elastic buffer portion 14 can generate sufficient buffering force on the armature 3, so as to prevent the armature and the yoke from colliding, thereby achieving the effect of noise reduction.

[0027] Please refer to the appendix. Figure 1 To be continued Figure 3 One embodiment of this utility model also provides a matching structure for a compression spring and an armature, including a compression spring for the armature 2 and any of the above-mentioned armatures. A concave groove 22 is provided at the bend of the armature 2, and the end of the elastic pressure head 11 on the compression spring body 1 is adapted to engage in the concave groove 22, so that the elastic pressure head 11 provides support, positioning and anti-dislodgement function for the armature 2. In a preferred embodiment, a protruding bud structure 211 is provided on the inner sidewall of the driving end 21 of the armature 2.

[0028] Please refer to the appendix. Figure 1 To be continued Figure 3 One embodiment of this utility model also provides a relay, including the compression spring for the armature as described above or the combination structure of the compression spring and the armature as described above.

[0029] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A compression spring for an armature, characterized in that: It includes a compression spring body (1), one end of which is formed with an elastic pressure head (11) for engaging with the armature (2) of the relay, and the other end is formed with a connecting part (12) for fixing with the yoke (3) of the relay.

2. The compression spring for the armature according to claim 1, characterized in that: The compression spring body (1) is configured to be fixedly connected to the yoke (3) by the connecting part (12).

3. The compression spring for the armature according to claim 2, characterized in that: The connecting part (12) is fixed to the outer wall of the side plate of the yoke (3) by welding or riveting.

4. The compression spring for the armature according to claim 1, characterized in that: A clearance (13) is provided on the compression spring body (1) to allow the drive end (21) of the armature (2) to pass through the clearance (13) of the compression spring body (1) and swing freely.

5. The compression spring for the armature according to claim 1, characterized in that: The elastic pressure head (11) has a bent structure.

6. The compression spring for the armature according to claim 1, characterized in that: The compression spring body (1) is also provided with an elastic buffer part (14) for buffering the reset action of the drive end (21) of the armature (2).

7. The compression spring for the armature according to claim 6, characterized in that: The elastic buffer (14) is a bent spring sheet located at the tail of the connecting part (12).

8. A compression spring and armature mating structure, characterized by: The armature (2) and the compression spring for the armature as described in any one of claims 1 to 7 are provided with a concave groove (22) at the bend of the armature (2). The end of the elastic pressure head (11) on the compression spring body (1) is adapted to be engaged in the concave groove (22), and the elastic pressure head (11) provides support, positioning and anti-fall-off function for the armature (2).

9. The compression spring and armature mating structure of claim 8, wherein: A bulge structure (211) is provided on the inner wall of the drive end (21) of the armature (2).

10. A relay, characterized in that: Includes the compression spring for the armature as described in any one of claims 1 to 7, or the coupling structure of the compression spring and armature as described in claim 8 or 9.

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