Insulation structure and drawer type circuit breaker

By combining detachable insulating vertical bars and elastic O-type insulating tubes, a maze-like structure is formed, which solves the problem of insufficient insulation of drawer-type circuit breakers in high-voltage environments, achieves miniaturization and high insulation, and improves the versatility of the module.

CN120600595APending Publication Date: 2025-09-05BEIYUAN ELECTRIC APPLIANCE (ZHUZHOU) CO LTD
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Patent Information

Application Number
CN202510873187.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Existing drawer-type circuit breakers are difficult to miniaturize in high-voltage environments and have insufficient insulation performance. In particular, the maze-like structure formed by the bosses and grooves is not very versatile, and it is difficult to design an excellent insulation solution for the partition structure within a limited space.

Method used

A detachable first insulating vertical bar, multiple second insulating vertical bars and a third insulating vertical bar are used in combination with an elastic O-type insulating tube to form a maze structure. The insulation between the conductive main circuit and the drawer seat conductor is ensured through the combination of the insulating component, the bracket component and the safety door component.

Benefits of technology

The insulation and module versatility of the circuit breaker in high voltage environments are improved, ensuring effective isolation between phases of the conductive main circuit and between phases and conductors on both sides of the drawer seat, meeting the needs of high voltage miniaturization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an insulation structure and a drawer type circuit breaker, the insulation structure comprises an insulation assembly, an insulation support assembly and a drawer seat safety door assembly, the insulation assembly is installed on a body bottom plate, the insulation support assembly sleeves the insulation assembly, the upper end of the insulation support is fixed on a drawer seat bottom frame, and the lower end of the insulation support is fixed on the drawer seat safety door assembly. The drawer safety door assembly is installed on the insulating support. Compared with the prior art, the detachable first insulating vertical bar, the detachable second insulating vertical bars and the detachable third insulating vertical bars are adopted, the structure is simple, and the module universality is good; the body conductive main loop bus phases and the phases and the conductors on the two sides of the drawer seat are separated by structures formed by the body insulating vertical bars and the drawer seat insulating supports, so that the insulativity between the body conductive main loop phases and the insulativity between the phases and the conductors on the two sides of the drawer seat are greatly improved.
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