Relay

By introducing a combination of elastic and actuating elements into the relay, the moving spring is stably reset when power is off, solving the problem of insufficient reliability in the prior art and improving the service life and reliability of the relay.

CN224554291UActive Publication Date: 2026-07-24ZHEJIANG CHINT ELECTRIC CO LTD
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Patent Information

Application Number
CN202521230239.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-07-24
Estimated Expiration
2035-06-16

AI Technical Summary

Technical Problem

Existing relays rely on the elastic action of the moving spring to reset when power is off, resulting in insufficient reliability and affecting service life.

Method used

The design employs a combination of elastic and pushing components. When energized, the pushing component overcomes the elastic force of the elastic component, causing the moving spring to contact the normally open stationary spring. When de-energized, the elastic component releases its elastic potential energy, driving the moving spring to contact the normally closed stationary spring, thus avoiding reliance on its own elastic action.

Benefits of technology

It improves the reliability of the relay, reduces the mechanical impact when the moving and stationary reeds collide, extends the service life of the reed assembly, stabilizes the reset path of the pusher, and avoids collisions with other components.

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Abstract

The utility model relates to a relay. The relay comprises a base, a reed assembly, a pushing piece and an elastic piece. The reed assembly is arranged on the base, the reed assembly comprises a normally-open static reed and a normally-closed static reed which are oppositely arranged, and a movable reed which is movably arranged between the normally-open static reed and the normally-closed static reed, the pushing piece is configured to drive the movable reed to move, and the elastic piece is connected between the base and the pushing piece; and the elastic piece is configured to generate elastic deformation in the movement direction of the pushing piece. Wherein the pushing piece is provided with a first position and a second position, the pushing piece overcomes the elastic force of the elastic piece at the first position so as to enable the movable reed to be in contact with the normally-open static reed, and the pushing piece is driven by the elastic force of the elastic piece at the second position so as to enable the movable reed to be in contact with the normally-closed static reed. The movable contact spring is prevented from resetting only by means of self-contained elasticity, the reliability of the relay is effectively improved, mechanical impact generated when the movable contact spring collides with the normally-open static contact spring and the normally-closed static contact spring is reduced, and the service life of the contact spring assembly is prolonged.
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