Fatigue-resistant moving reed for relay

By using beryllium copper alloy, nanocrystalline alloy and diamond-like carbon film material in the moving reed of the relay, combined with the design of rotating groove and telescopic rod, the problem of metal fatigue aging of the moving reed is solved, and the long life and stability of the moving reed are achieved.

CN224153338UActive Publication Date: 2026-04-21宁波途丰电气有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
宁波途丰电气有限公司
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing moving springs used in relays often age and fail due to metal fatigue, resulting in a short service life and affecting the normal operation of the relays.

Method used

The base layer is made of beryllium copper alloy, the reinforcing layer is made of nanocrystalline alloy, and the protective layer is made of diamond-like carbon film. Combined with the design of rotating groove and rotating column, telescopic rod and spring, the fatigue resistance and stability of the spring are enhanced.

Benefits of technology

It significantly extends the service life of the moving reed and improves the stability and reliability of the relay.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224153338U_ABST
    Figure CN224153338U_ABST
Patent Text Reader

Abstract

The utility model provides an anti-fatigue moving reed for a relay, which relates to the technical field of moving reeds and comprises a mounting seat, side plates are symmetrically fixed at the top end of the mounting seat, and a reed main body is mounted between the side plates; the reed main body comprises a base material layer, the periphery of the base material layer is sleeved with a reinforcing layer, the periphery of the reinforcing layer is sleeved with a protective layer, and a contact ball is fixed to the position, close to the back face, of the top end of the reed main body. And the service life of the movable contact spring can be well prolonged, so that the movable contact spring for the relay can be more stable in use, and the service life can be longer.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of moving spring technology, and in particular to fatigue-resistant moving springs for relays. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in an electrical output circuit when the input quantity changes to a specified level. The moving reed of a relay is a key component used to control the on / off state of the circuit. The moving reed is usually made of a thin metal sheet. When the relay is triggered by an external signal, the moving reed will deform, thereby changing the connection state of the circuit.

[0003] In practical use, the moving spring in existing relays is a component that needs to be bent frequently. Due to the fatigue of metal, the moving spring often ages and is damaged, resulting in a short service life and indirectly affecting the normal operation of the relay. Therefore, we propose a fatigue-resistant moving spring for relays. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. In practical use, the moving spring in a relay is a component that needs to be bent frequently. Due to the fatigue of metal, the moving spring often ages and is damaged, resulting in a short service life and indirectly affecting the normal operation of the relay.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fatigue-resistant moving spring for a relay includes a mounting base, on the top of which side plates are symmetrically fixed, and a spring body is installed between the side plates.

[0007] The reed body includes a base material layer, a reinforcing layer is sleeved around the base material layer, a protective layer is sleeved around the reinforcing layer, and a contact ball is fixed at the top of the reed body near the back.

[0008] As a preferred embodiment of this utility model, a rotating groove is provided on the inner side wall of the side plate corresponding to the spring body, and a rotating column is installed on the outer side wall of the spring body corresponding to the rotating groove, and the rotating column is rotatably connected to the rotating groove.

[0009] The technical effect of adopting the above-mentioned further solution is that by rotating the column and rotating the groove, the main body of the reed can rotate more freely, thereby driving the contact ball to move.

[0010] As a preferred embodiment of this utility model, a telescopic rod is fixedly attached to the top of the mounting base near the front, the top of the telescopic rod is fixedly connected to the spring body, and a spring is sleeved around the telescopic rod.

[0011] The technical effect of adopting the above-mentioned further solution is that, through the design of the telescopic rod and spring, the telescopic rod and spring can apply force to the reed body to retract the reed body to the initial position.

[0012] As a preferred embodiment of this utility model, an electromagnet is installed at the top of the mounting base near the back.

[0013] The technical effect of adopting the above-mentioned further solution is that, through the design of the electromagnet, the electromagnet can attract the reed body after being turned on, thereby driving the reed body to rotate and change the position of the contact ball.

[0014] As a preferred embodiment of this utility model, the substrate layer is made of beryllium copper alloy.

[0015] The technical effect of adopting the above-mentioned further solution is that the substrate layer structure made of beryllium copper alloy is more stable and has stronger resistance to metal fatigue, which can greatly extend the service life of the reed body.

[0016] As a preferred embodiment of this invention, the reinforcing layer is made of nanocrystalline alloy material.

[0017] The technical effect of adopting the above-mentioned further solution is that the reinforcing layer made of nanocrystalline alloy material can effectively strengthen the reed body and greatly improve the fatigue resistance of the reed body.

[0018] As a preferred embodiment of this utility model, the protective layer is made of diamond-like carbon film material.

[0019] The technical effect of adopting the above-mentioned further solution is that the protective layer made of diamond-like carbon film material greatly improves the hardness of the surface of the spring body, which can effectively prevent the spring body from being damaged during long-term use and extend the service life of the spring body.

[0020] As a preferred embodiment of this utility model, the contact ball and the spring body are fixed by welding.

[0021] The technical advantage of adopting the above-mentioned further solution is that the welding fixation method can be more robust and stable.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] In this invention, the design of the substrate layer, the reinforcing layer, and the protective layer not only improves the resistance to metal fatigue of the moving spring when used in relays, but also extends the service life of the moving spring, making the moving spring used in relays more stable and with a longer service life. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of the fatigue-resistant moving spring for a relay provided by this utility model;

[0025] Figure 2 A schematic diagram of the telescopic rod structure for the fatigue-resistant moving spring in a relay provided by this utility model;

[0026] Figure 3 Anatomical diagram of the substrate layer structure of the fatigue-resistant moving spring for relays provided by this utility model;

[0027] Figure 4 This is an anatomical diagram of the rotating column structure of the fatigue-resistant moving spring for a relay provided by this utility model.

[0028] Legend: 1. Mounting base; 101. Side plate; 102. Rotating groove; 103. Telescopic rod; 104. Spring; 105. Electromagnet; 2. Spring body; 201. Substrate layer; 202. Reinforcing layer; 203. Protective layer; 204. Contact ball; 205. Rotating column. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Example 1

[0034] like Figure 1-4 As shown, this utility model provides a technical solution: a fatigue-resistant moving spring for a relay, including a mounting base 1, which is used to mount a side plate 101, a telescopic rod 103, and an electromagnet 105. The top of the mounting base 1 is symmetrically fixed with side plates 101, which are used to mount the spring body 2. The spring body 2 is installed between the side plates 101. The spring body 2 can rotate. The spring body 2 includes a base material layer 201, which can improve the hardness of the spring body 2 and extend its service life. A reinforcing layer 202 is sleeved around the base material layer 201, which can strengthen the base material layer 201 and improve the fatigue resistance of the spring body 2. A protective layer 203 is sleeved around the reinforcing layer 202, which can strengthen the surface hardness of the spring body 2 and prevent external damage to the spring body 2. A contact ball 204 is fixed near the back of the top of the spring body 2, which is used to make contact with the outside.

[0035] Example 2

[0036] like Figure 1-4 As shown, a rotating groove 102 is provided on the inner side wall of the side plate 101 corresponding to the spring body 2, and a rotating column 205 is installed on the outer side wall of the spring body 2 corresponding to the rotating groove 102. The rotating column 205 is rotatably connected to the rotating groove 102. Through the rotatable connection between the rotating column 205 and the rotating groove 102, the spring body 2 can rotate relatively freely, thereby driving the contact ball 204 to move.

[0037] A telescopic rod 103 is fixed at the top of the mounting base 1 near the front. The top of the telescopic rod 103 is fixedly connected to the spring body 2. A spring 104 is sleeved around the telescopic rod 103. Through the design of the telescopic rod 103 and the spring 104, the telescopic rod 103 and the spring 104 can apply force to the spring body 2 to retract the spring body 2 to the initial position.

[0038] An electromagnet 105 is installed at the top of the mounting base 1 near the back. The electromagnet 105 is designed so that it can attract the reed body 2 after being turned on, thereby causing the reed body 2 to rotate and change the position of the contact ball 204.

[0039] The substrate layer 201 is made of beryllium copper alloy. The substrate layer 201 made of beryllium copper alloy has a relatively stable structure and strong resistance to metal fatigue, which can effectively extend the service life of the spring body 2.

[0040] The reinforcing layer 202 is made of nanocrystalline alloy material. The reinforcing layer 202 made of nanocrystalline alloy material can effectively strengthen the spring body 2 and greatly improve the fatigue resistance of the spring body 2.

[0041] The protective layer 203 is made of diamond-like carbon film material. The protective layer 203 made of diamond-like carbon film material greatly improves the hardness of the surface of the spring body 2, which can effectively prevent the spring body 2 from being damaged during long-term use and extend the service life of the spring body 2.

[0042] The contact ball 204 is fixed to the spring body 2 by welding, which makes it more secure and stable.

[0043] The working process of this utility model is as follows: When using the fatigue-resistant moving spring for relays, the substrate layer 201, made of beryllium copper alloy, has a relatively stable structure and strong resistance to metal fatigue. It will not exhibit significant metal fatigue during long-term use. Furthermore, the reinforcing layer 202, made of nanocrystalline alloy, can effectively strengthen the spring body 2, greatly enhancing its overall strength and making the overall structure more stable. The protective layer 203, made of diamond-like carbon film, also effectively improves the surface hardness of the spring body 2, preventing damage to the spring body 2 during long-term use. Compared with existing moving springs for relays, this not only improves the resistance to metal fatigue but also significantly extends the service life of the moving spring, making the moving spring for relays more stable and longer in use.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fatigue-resistant moving spring for a relay, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is symmetrically fixed with side plates (101), and a spring body (2) is installed between the side plates (101). The reed body (2) includes a substrate layer (201), a reinforcing layer (202) is sleeved around the substrate layer (201), a protective layer (203) is sleeved around the reinforcing layer (202), and a contact ball (204) is fixed at the top of the reed body (2) near the back.

2. The fatigue resistant spring arm for a relay according to claim 1, wherein: A rotating groove (102) is provided on the inner side wall of the side plate (101) corresponding to the spring body (2), and a rotating column (205) is installed on the outer side wall of the spring body (2) corresponding to the rotating groove (102). The rotating column (205) is rotatably connected to the rotating groove (102).

3. The fatigue resistant spring arm for a relay of claim 1, wherein: The top of the mounting base (1) is fixed with a telescopic rod (103) near the front. The top of the telescopic rod (103) is fixedly connected to the spring body (2). A spring (104) is sleeved around the telescopic rod (103).

4. The fatigue resistant spring arm for a relay of claim 1, wherein: An electromagnet (105) is installed at the top of the mounting base (1) near the back.

5. The fatigue resistant armature for a relay according to claim 1, wherein: The substrate layer (201) is made of beryllium copper alloy.

6. The fatigue resistant spring arm for a relay of claim 1, wherein: The reinforcing layer (202) is made of nanocrystalline alloy material.

7. The fatigue resistant spring arm for a relay of claim 1, wherein: The protective layer (203) is made of diamond-like carbon film material.

8. The fatigue-resistant moving spring for a relay according to claim 1, characterized in that: The contact ball (204) is fixed to the spring body (2) by welding.