A circuit breaker gas-filled sealed housing with multiple sealing structure

By using static and dynamic components with multiple sealing structures, the problem of insufficient sealing of the circuit breaker housing is solved, ensuring the sealing and stability of the housing in harsh environments and extending the service life of the equipment.

CN224437503UActive Publication Date: 2026-06-30NANJING JINTAI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JINTAI ELECTRIC CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing circuit breaker housing has poor sealing, which makes it easy for external substances to enter the housing, affecting the performance and lifespan of the equipment.

Method used

It adopts a multi-seal structure, including a static sealing component and a dynamic sealing component. The static sealing component uses a combination of a fixed frame, sealing strip, bottom sealing plate and pressure strip, while the dynamic sealing component ensures the airtightness of the housing through the sealing connection between the operating shaft and the operating shaft sleeve.

Benefits of technology

In harsh environments, it effectively prevents external substances from entering the casing, maintains the stability and sealing of the casing, and extends the equipment's lifespan.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224437503U_ABST
    Figure CN224437503U_ABST
Patent Text Reader

Abstract

The application discloses a circuit breaker inflation sealing shell with a multiple sealing structure and belongs to the technical field of sealing structures of high-voltage electrical equipment. The shell comprises a body, a top opening of the body, and an internal part for accommodating a circuit breaker. A static sealing assembly is arranged on the side of the body opening, and the static sealing assembly is used for sealing the top opening of the body and ensuring the stability of the air pressure inside the shell. An operating port is defined on the side wall of the body, and an operating assembly is arranged in the operating port and used for realizing the opening and closing operations of the circuit breaker. A dynamic sealing assembly is further arranged in the operating port to seal the operating port. The dynamic sealing assembly seals the operating port, and the body has high sealing performance during the operation of the operating assembly. The multiple sealing structure avoids the entry of external substances into the shell under a severe environment, and ensures the stability of the circuit breaker shell.
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