Circuit breaker manual operating mechanism and circuit breaker
By introducing indirect sliding friction between the turntable assembly and the friction ring, and a stable connection with the tension spring in the manual operating mechanism of the circuit breaker, the problems of handle wear and unstable spring fixation are solved, achieving accurate handle reset and improved insulation performance.
CN224480902UActive Publication Date: 2026-07-10XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
In existing circuit breaker manual operating mechanisms, the handle cannot be accurately reset due to wear and unstable spring fixation, which affects the indication of the circuit breaker's operating status.
Method used
The turntable assembly and friction ring are used for indirect sliding friction, combined with the stable connection of the tension spring and the design of the insulating shell to avoid wear on the turntable and ensure accurate return of the handle.
Benefits of technology
It extends the service life of the circuit breaker's manual operating mechanism, improves the accuracy and insulation performance of the handle after prolonged use, and reduces the risk of phase-to-phase breakdown in the main circuit in high-voltage scenarios.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224480902U_ABST
Abstract
The utility model relates to the technical field of circuit breaker, specifically related to a kind of circuit breaker manual operating mechanism and circuit breaker, including shell and carousel assembly, carousel assembly is worn in shell, one end is used to connect to operating handle, the other end is used to connect to the moving contact component of circuit breaker, carousel assembly and shell have a rotation setting friction ring, friction ring has the opposite setting two end faces along its rotation axis extension direction, the two end faces of friction ring respectively abut carousel assembly and shell, so that carousel assembly is indirectly sliding friction with shell by means of friction ring.In the process of carousel assembly rotation, friction ring can be synchronously rotated with carousel assembly to avoid carousel assembly wear, or in the process of carousel assembly rotation, friction ring free rotation reduces the wear of carousel assembly, to prolong the life of carousel assembly, in turn prolong the service life of the circuit breaker manual operating mechanism, keep handle after long time use the accuracy of indicating circuit breaker operating state.
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