An electromagnetic system and a snap-action circuit breaker
By reducing the air gap between the armature and the yoke, adopting a U-shaped structure and a rotating shaft connection, and incorporating elastic elements and a connecting rod structure, the problem of slow response speed of the electromagnetic system was solved, thereby improving the tripping rate and reliability of the snap-action circuit breaker.
CN224437558UActive Publication Date: 2026-06-30DELIXI ELECTRIC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DELIXI ELECTRIC
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
The electromagnetic system of existing snap-action circuit breakers has a slow response speed, resulting in a low tripping rate.
Method used
By reducing the air gap between the armature and the yoke, the electromagnetic attraction is increased. A U-shaped yoke design and shaft connection are adopted, and elastic elements and connecting rod structures are set up to improve the sensitivity and reliability of the armature.
Benefits of technology
It improves the response speed and tripping rate of the electromagnetic system, enhances the reliability of the electromagnetic system, and reduces armature interference and reset instability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224437558U_ABST
Abstract
This application provides an electromagnetic system and a snap-action circuit breaker, belonging to the field of electrical equipment technology. The electromagnetic system includes a yoke and an armature. The yoke includes a first air gap surface, with an installation space inside the yoke and an opening within the installation space. The first air gap surface is located at the opening. The armature includes a connecting portion and a body portion. The body portion is located on the side of the yoke with the opening. The end of the body portion near the connecting portion is connected to the connecting portion, and the connecting portion is rotatably connected to the yoke. The distance between the end of the body portion near the connecting portion and the first air gap surface approaches zero. The body portion includes a second air gap surface facing the opening, which can be attracted to the first air gap surface. This application can reduce the air gap between the armature and the yoke, making the armature's action more sensitive and its response speed faster, thereby improving the tripping rate of the snap-action circuit breaker.
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