Static contact of circuit breaker

By designing a circuit breaker static contact including a static contact body, a static contact and a contact support frame, the wear and stability problems caused by frequent opening and closing of existing static contacts are solved, and a more stable butt and longer service life are achieved.

CN222637208UActive Publication Date: 2025-03-18YUEQING HAOYI ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202420931796.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-03-18
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

The frequent opening and closing of existing circuit breakers causes serious wear of contacts, reduced accuracy and position offset, which affects the breaking capability and stability of the circuit breaker, and is also inefficient in installation.

Method used

A circuit breaker static contact including a static contact body, a static contact point and a contact support frame is designed. The static contact body is combined with the contact support frame through a bent transition part and a docking part to provide more stable support, and quickly induced arcing is achieved through an integrated stamping-formed arcing block.

Benefits of technology

Through the design of the contact support frame, the static contact body is more stable and reliable when connected to the moving contact, reducing deformation and temperature rise caused by frequent impacts, extending service life, and improving installation efficiency.

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Abstract

The utility model relates to a static contact of a circuit breaker. The technical problem to be solved by the utility model is to provide the static contact of the circuit breaker. According to the technical scheme, the static contact comprises a static contact body, a static contact point and a contact supporting frame, the static contact body comprises a static contact main board part, the right end of the static contact main board part is bent outwards and extends to form a static contact transition part and a static contact wiring part, the static contact wiring part is provided with a static contact wiring hole, and the static contact wiring hole is connected with the static contact point. The left end of the static contact mainboard part is bent outwards and extends to form a static contact arc part and a static contact butt joint part, the front end of the static contact butt joint part is provided with a contact welding hole, the contact support frame comprises a support leg and a support frame bearing part, and the support frame bearing part is provided with a support frame bearing groove. The utility model has the advantages that the contact support frame can support the butt joint part of the static contact, so that the static contact main body is more stable and reliable when being in butt joint with the moving contact, and the static contact main body is matched with the integrally formed arc striking block to carry out rapid arc striking, so that the whole service life is longer.
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