relay

By designing the extension arm of the push rod component in the high-voltage DC relay to contact the protruding part of the wall to suppress rotation, and adopting a split contact cavity structure, the problem of contact instability caused by the rotation of the push rod component is solved, thereby improving the reliability and space utilization of the relay and realizing miniaturized design.

CN224537005UActive Publication Date: 2026-07-21XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Filing Date
2025-05-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The push rod component of existing high-voltage DC relays is prone to rotating around its own axis, resulting in inconsistent contact positions of moving and stationary contacts, unstable contact resistance, and affecting the reliability of the relay.

Method used

A relay is designed in which the extension arm of the push rod component and the wall of the contact cavity are provided with protrusions. The rotation of the push rod component is suppressed by the contact between the protrusions and the wall. The compact assembly of the moving contact assembly is achieved by the separate connection of the contact cavity structure, avoiding interference of conductive parts and improving the consistency and stability of contact.

Benefits of technology

It effectively suppresses the rotation of the push rod component, ensures the consistency of the contact position and the stability of the contact resistance, improves the working reliability of the relay, and helps to miniaturize the product and reduce manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224537005U_ABST
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Abstract

The application discloses a relay, comprising a contact cavity and a push rod component, the contact cavity has a contact chamber; the push rod component comprises an insulating base and a contact support movably arranged in the contact chamber, the insulating base comprises a base and two extension arms, the contact support is arranged on the base, the contact support has two side walls, the two extension arms are respectively connected to two ends of the base along the arrangement direction of the two side walls, and the contact support is located between the two extension arms; wherein the contact cavity further comprises a wall part located around the insulating base, one of the mutually facing surfaces of the extension arm and the adjacent wall part is provided with a protruding part.
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