An arc-extinguishing chamber and a circuit breaker or disconnector
By setting a partition above the arc-extinguishing chamber to divide it into independent spaces and equipping it with a pressure relief channel, a series arc-extinguishing chamber structure is formed, which solves the problem of pressure propagation caused by the rapid movement of the electric arc and improves the arc-extinguishing performance of the arc-extinguishing chamber.
CN224318345UActive Publication Date: 2026-06-02SHANGHAI SIEYUAN LOW VOLTAGE SWITCH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SIEYUAN LOW VOLTAGE SWITCH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-02
Smart Images
Figure CN224318345U_ABST
Abstract
This application belongs to the field of switch technology, specifically an arc-extinguishing chamber and a circuit breaker or disconnecting switch. The upper part of the arc-extinguishing chamber is divided into multiple independent spaces by a partition structure, which together with the lower arc-extinguishing chamber, forms multiple arc-extinguishing chambers connected in series. Each space has a pressure relief channel connected to the outside. After the circuit breaker or disconnecting switch ignites, the arc moves independently within each partition, preventing the gas in the high-pressure area of the strong magnetic blow-out region from flowing to the low-pressure area of the weak magnetic blow-out region. This effectively promotes the entry of gas into the grid plates (such as the last few grid plates on the moving contact side) in areas with weaker magnetic blow-out force, thereby improving the arc-extinguishing performance of the arc-extinguishing chamber grid plates.
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