Relay contact structure and relay

Abstract

The relay contact structure comprises a movable contact spring and a static contact part, the movable contact spring is provided with a movable contact part, the static contact part is provided with a static contact part opposite to the movable contact part, and the static contact part is provided with a static contact convex rib used for being matched with the movable contact part in an abutting mode. And the extension range of the static contact convex rib is configured to cover the deflection stroke of the movable contact part. According to the utility model, the static contact part is provided with the static contact convex rib, and the extension range of the static contact convex rib covers the deflection stroke of the movable contact part, so that even if the movable contact spring deflects left and right in the use process, the movable contact surface on the movable contact part can be in stable and reliable contact fit with the static contact convex rib; and the problems of poor contact, unreliable contact, large resistance scattering difference and the like are avoided.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, specifically to a relay contact structure and a relay. Background Technology

[0002] As attached Figure 7 and attached Figure 8 As shown, a conventional relay contact structure includes a moving spring and a stationary contact portion. The moving spring has two moving contact portions with a planar contact surface 1'. The stationary contact portion has two spherical stationary contacts 2' corresponding to the contact surfaces of the two moving contact portions. Under normal conditions, the contact surfaces 1' of the two moving contact portions will make face-to-face contact with the two spherical stationary contacts 2'. However, under certain special circumstances, the moving spring may have excessive deflection, causing the moving contact to fall into the gap between the two spherical stationary contacts 2'. This leads to problems such as poor contact, unreliable contact, and large resistance differences between the moving and stationary contact portions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a relay contact structure that primarily solves the technical problem that existing relay contact structures are prone to poor contact, unreliable contact, and large resistance differences between the moving and stationary contact parts when the moving spring deflection is too large.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A relay contact structure includes a moving spring and a stationary contact portion. The moving spring has a moving contact portion, and the stationary contact portion has a stationary contact portion disposed opposite to the moving contact portion. The stationary contact portion has a stationary contact rib formed thereon for contacting and engaging with the moving contact portion, and the extension range of the stationary contact rib is configured to cover the yaw stroke of the moving contact portion.

[0006] Furthermore, the moving contact part is provided with a moving contact surface for cooperating with the static contact rib, and the moving contact surface is a planar structure.

[0007] Furthermore, the static contact ribs are an integral extended structure.

[0008] Furthermore, the contact surface of the static contact rib has an arc-shaped structure.

[0009] Furthermore, the stationary contact portion also includes a lead-out portion, which is fixedly connected to the stationary contact portion.

[0010] Furthermore, a moving contact portion is provided on the moving reed, which is disposed opposite to the stationary contact portion of the stationary contact portion.

[0011] Furthermore, two moving contact portions are provided on one side of the moving spring, which are opposite to the stationary contact portion of the stationary contact portion, and the two moving contact portions are configured to be spaced apart and opposite to each other, and the extension range of the stationary contact rib is configured to cover the yaw stroke of at least one of the two moving contact portions.

[0012] Furthermore, the static contact rib extends in an arc-shaped, curved form.

[0013] Based on the same inventive concept, this utility model also provides a relay, including any of the relay contact structures described above.

[0014] Furthermore, the relay contact structure is configured to constitute the auxiliary contact portion of the relay. Moving contact portions are provided at both ends of the moving reed, and two stationary contact portions are provided on the relay, each corresponding to one of the moving contact portions at both ends of the moving reed. The two stationary contact portions are provided with stationary contact portions that are respectively opposite to the two moving contact portions. The relay also includes a push rod assembly, which is connected to the middle of the moving reed, so that the push rod assembly drives the moving contact portions at both ends of the moving reed to synchronously contact or separate from the corresponding stationary contact portions.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the relay contact structure and relay described in this utility model, since a static contact rib is provided in the static contact part and the extension range of the static contact rib covers the deflection stroke of the moving contact part, even if the moving spring deflects during use, the moving contact surface on the moving contact part can form a stable and reliable contact fit with the static contact rib, avoiding defects such as poor contact, unreliable contact, and large resistance difference. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the static contact portion of Embodiment 1 of this utility model.

[0018] Figure 2 This is a schematic diagram of the cooperation structure between the moving spring and the stationary contact part in Embodiment 1 of this utility model.

[0019] Figure 3 This is a schematic diagram of another angle of engagement between the moving spring and the stationary contact part in Embodiment 1 of this utility model (in the state of oscillating contact).

[0020] Figure 4 This is a schematic diagram of the internal structure of the relay according to Embodiment 1 of this utility model.

[0021] Figure 5 This is a schematic diagram of the cooperation structure between the moving spring and the stationary contact part in Embodiment 2 of this utility model.

[0022] Figure 6 This is a schematic diagram of another angle of engagement between the moving spring and the stationary contact part in Embodiment 2 of this utility model.

[0023] Figure 7 This is a schematic diagram of the existing relay contact structure in a normal contact state.

[0024] Figure 8 This is a schematic diagram of the existing relay contact structure in a wobbling contact state.

[0025] Label Explanation:

[0026] 1. Moving spring, 2. Stationary contact part, 11. Moving contact part, 21. Stationary contact part, 22. Lead-out part, 111. Moving contact surface, 211. Stationary contact rib. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] 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.

[0029] Example 1

[0030] Please refer to the appendix. Figure 1 To be continued Figure 4 One embodiment of this utility model provides a relay contact structure, including a moving spring 1 and a stationary contact portion 2. The moving spring 1 has a moving contact portion 11, and the stationary contact portion 2 has a stationary contact portion 21 opposite to the moving contact portion 11. The moving contact portion 11 has a moving contact surface 111, and the stationary contact portion 21 has a stationary contact rib 211 for contacting and engaging with the moving contact surface 111. The extension range of the stationary contact rib 211 is configured to cover the deflection stroke of the moving contact portion 11. It can be understood that in this embodiment, since the stationary contact rib 211 is provided in the stationary contact portion 21, and the extension range of the stationary contact rib 211 covers the deflection stroke of the moving contact portion 11, even if the moving spring 1 deflects during use, the moving contact surface 111 on the moving contact portion 11 can form a stable and reliable contact engagement with the stationary contact rib 211, avoiding defects such as poor contact, unreliable contact, and large resistance difference.

[0031] Please refer to the appendix. Figure 1 To be continued Figure 4In one preferred embodiment, two moving contact portions 11 are provided on one side of the moving spring 1, opposite to the stationary contact portion 21 of the stationary contact portion 2. The two moving contact portions 11 are arranged in parallel with a gap between them, and the extension range of the stationary contact rib 211 is configured to cover the deflection stroke of at least one of the two moving contact portions 11. The stationary contact rib 211 is an integral extension structure, and preferably, the moving contact surface 111 is a planar structure. The contact surface of the stationary contact rib 211 has an arc-shaped structure. In this embodiment, by configuring the stationary contact rib 211 as an integral extension structure, the contact surface of the stationary contact rib 211 is flat, smooth, and without gaps. During use, even if the moving spring 1 experiences excessive sway, because the contact surface of the stationary contact rib 211 is flat, smooth, and without gaps, and the extension range of the stationary contact rib 211 covers the sway stroke of the moving contact portion 11, at least one of the two moving contact portions 11 can still reliably and stably form contact with the contact surface of the stationary contact rib 211, ensuring the reliability of the auxiliary contact monitoring. In this embodiment, preferably, the stationary contact portion 2 also includes a lead-out portion 22, which is fixedly connected to the stationary contact portion 21. Specifically, the lead-out portion 22 can be welded to the bottom of the stationary contact portion 21 for fixation. However, those skilled in the art should understand that in other embodiments, the stationary contact portion 21 and the lead-out portion 22 can also be an integral structure.

[0032] Please refer to the appendix. Figure 1 To be continued Figure 4 In one preferred embodiment, the static contact rib 211 extends in an arc-shaped bend. In this embodiment, by configuring the static contact rib 211 to extend in an arc-shaped bend, the static contact rib 211 can better form reliable contact with the moving contact surface 111 on the wobbling moving contact portion 11.

[0033] Please refer to the appendix. Figure 1 To be continued Figure 4 One embodiment of this utility model also provides a relay, including any of the relay contact structures described above.

[0034] Please refer to the appendix. Figure 1 To be continued Figure 4In one preferred embodiment, the relay contact structure is configured as an auxiliary contact portion of the relay. Moving contact portions 11 are provided at both ends of the moving spring 1. Two stationary contact portions 2 are provided on the relay, each corresponding to one of the moving contact portions 11 at both ends of the moving spring 1. Each stationary contact portion 2 has a stationary contact portion 21 positioned opposite to the two moving contact portions 11. The relay also includes a push rod assembly connected to the middle of the moving spring 1, so that the push rod assembly drives the moving contact portions 11 at both ends of the moving spring 1 to synchronously contact or separate from the corresponding stationary contact portions 21. In this embodiment, preferably, two moving contact portions 11 are provided at each end of the moving spring 1. However, those skilled in the art should understand that in other embodiments, only one or other numbers of moving contact portions 11 may be provided at each end of the moving spring 1, and the embodiment is not limited to the specific implementation disclosed herein.

[0035] Example 2

[0036] Please refer to the appendix. Figure 5 Appendix Figure 6 The difference between this embodiment and the first embodiment is that a moving contact portion 11 is provided on one side of the moving spring 1, which is opposite to the stationary contact portion 21 of the stationary contact portion 2.

[0037] 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 relay contact structure, characterized in that: It includes a moving spring (1) and a stationary contact portion (2). The moving spring (1) is provided with a moving contact portion (11), and the stationary contact portion (2) is provided with a stationary contact portion (21) opposite to the moving contact portion (11). The stationary contact portion (21) is formed with a stationary contact rib (211) for contacting and engaging with the moving contact portion (11), and the extension range of the stationary contact rib (211) is configured to cover the sway stroke of the moving contact portion (11).

2. The relay contact structure according to claim 1, characterized in that: The moving contact part (11) is provided with a moving contact surface (111) for cooperating with the static contact rib (211), and the moving contact surface (111) is a planar structure.

3. The relay contact structure according to claim 1, characterized in that: The static contact rib (211) is an integral extension structure.

4. The relay contact structure according to claim 1, characterized in that: The contact surface of the static contact rib (211) has an arc-shaped structure.

5. The relay contact structure according to claim 1, characterized in that: The stationary contact portion (2) also includes a lead-out portion (22), which is fixedly connected to the stationary contact portion (21).

6. The relay contact structure according to any one of claims 1 to 5, characterized in that: A moving contact portion (11) is provided on the moving reed (1) opposite to the stationary contact portion (21) of the stationary contact portion (2).

7. The relay contact structure according to any one of claims 1 to 5, characterized in that: Two moving contact portions (11) are provided on one side of the moving spring (1) and are disposed opposite to the stationary contact portion (21) of the stationary contact portion (2). The two moving contact portions (11) are arranged to be disposed opposite to each other at a distance. The extension range of the stationary contact rib (211) is configured to cover the swing stroke of at least one of the two moving contact portions (11).

8. The relay contact structure according to claim 7, characterized in that: The static contact rib (211) extends in an arc-shaped bend.

9. A relay, characterized in that: Includes the relay contact structure as described in any one of claims 1 to 8.

10. The relay according to claim 9, characterized in that: The relay contact structure is configured to form the auxiliary contact part of the relay. Moving contact parts (11) are provided at both ends of the moving reed (1). Two stationary contact parts (2) are provided on the relay, which are respectively provided corresponding to the moving contact parts (11) at both ends of the moving reed (1). The two stationary contact parts (2) are respectively provided with stationary contact parts (21) opposite to the two moving contact parts (11). The relay also includes a push rod assembly, which is connected to the middle part of the moving reed (1) so that the moving contact parts (11) at both ends of the moving reed (1) can be driven by the push rod assembly to synchronously contact or separate with the corresponding stationary contact parts (21).

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