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Long-durability movable spring and electromagnetic relay

An electromagnetic relay, durability technology, applied in the direction of electromagnetic relay, electromagnetic relay details, relay, etc., can solve the problem of poor durability of moving spring, achieve the effect of improving long durability, increasing flexibility, and reducing action range

Pending Publication Date: 2020-09-29
XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a long-durability moving spring and electromagnetic relay, which overcomes the problem of poor durability of the relay moving spring in the prior art

Method used

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  • Long-durability movable spring and electromagnetic relay
  • Long-durability movable spring and electromagnetic relay
  • Long-durability movable spring and electromagnetic relay

Examples

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Embodiment Construction

[0029] For examples, see Figure 1-Figure 3 As shown, a long-durability moving spring of the present invention is used in a clap type electromagnetic relay. It is roughly L-shaped and includes a first piece 61 that is matched with the armature 2 of the electromagnetic relay and the yoke 3 of the electromagnetic relay. The mating second piece 62, and the bending portion provided between the first piece 61 and the second piece 62; the bending portion is hollowed out and arched, and the second piece 62 is on the yoke 3 The action focus point of the upper part does not coincide with the fixed point, and is staggered in the width direction of the yoke 3. The arch of the bent portion can prevent interference with the armature 3 and affect the movement of the armature, and can increase the length of the moving spring, thereby increasing the flexibility of the moving spring. In addition, it can reduce the stress point movement of the moving spring when the armature moves. The swing amp...

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Abstract

The invention discloses a long-durability movable spring and an electromagnetic relay, and the movable spring is used for a clapper-type electromagnetic relay, and comprises a first sheet body cooperating with an armature of the electromagnetic relay, a second sheet body cooperating with a yoke of the electromagnetic relay, and a bending part disposed between the first sheet body and the second sheet body. The bending part is hollowed out and arched, and the action acting point of the second sheet body on the yoke does not coincide with the fixed point and is staggered in the width direction of the yoke. The bending part is hollow and arched, so that the flexibility of the movable spring can be improved, the length of the movable spring can be increased, and the action amplitude of the movable spring can be reduced; the action acting point of the second sheet body on the yoke does not coincide with the fixing point and is staggered in the width direction of the yoke, it can be guaranteed that stress cannot be concentrated on the fixing point of the second sheet body on the yoke when the movable contact spring acts, and therefore it is guaranteed that the portion, where the fixing point of the movable contact spring on the yoke is located, is not prone to fatigue fracture. Thus, the movable spring of the present invention can achieve long durability.

Description

Technical field [0001] The invention relates to the field of relays, in particular to a dynamic spring and electromagnetic relay with long durability. Background technique [0002] As a basic control element, electromagnetic relays are constantly updated and expanded in their market applications, especially in automation control. They are also widely used. Due to the demand for automation efficiency, their high number of actions has also attracted more and more attention, such as the application in PLC. The required durability is as long as tens of millions of times, which is 10 times higher than that of ordinary relays. Therefore, the relay with long durability has become one of the popular products in the field of relays. One of the key factors for the long durability of the relay is that the dynamic spring is required to be flexible, and the stress concentration is small when the dynamic spring is in action, to ensure that the dynamic spring is not prone to fatigue fracture. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/64H01H50/18H01H50/36H01H50/44
CPCH01H50/18H01H50/36H01H50/44H01H50/643
Inventor 李东侠谭忠华
Owner XIAMEN HONGFA ELECTROACOUSTIC CO LTD
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