Multifunction fault indicating miniature circuit breaker

By integrating closing, overtravel, short circuit, and overload indication structures into miniature circuit breakers, multiple fault indication functions are integrated, solving the problem that multi-pole circuit breakers in the prior art cannot provide accurate indication. This provides comprehensive equipment status information and overtravel warnings, improving user experience and equipment maintenance efficiency.

CN122436413APending Publication Date: 2026-07-21浙江华楷电气有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
浙江华楷电气有限公司
Filing Date
2026-06-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing miniature circuit breakers lack the integration of multiple fault indication functions, making it impossible to provide independent and accurate indication for each pole of multi-pole products. Furthermore, the overtravel indicator cannot provide early warning when the circuit is half-used, preventing users from scheduling maintenance in advance.

Method used

Design a miniature circuit breaker with multifunctional fault indication, integrating closing, overtravel, short circuit and overload indication structures. It integrates multiple indication functions by using a common positioning plate and transmission components, and arranges the indication elements in a limited space through structures such as transmission stroke amplification components and magnetic transmission rods to achieve independent fault indication.

Benefits of technology

It provides comprehensive equipment status information, allowing users to accurately identify faults in each pole. The overtravel indicator provides three levels of burn-out warning to avoid passive failure. It has a compact structure and controllable cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122436413A_ABST
    Figure CN122436413A_ABST
Patent Text Reader

Abstract

The application discloses a multifunctional fault indication miniature circuit breaker, which comprises a shell and a combination and separation driving assembly, a combination and separation indication structure, an over-travel indication structure, a short-circuit indication structure and an overload indication structure arranged in the shell; a positioning disc is arranged on the side wall of the shell; the combination and separation indication structure comprises a combination and separation indication piece and a combination and separation transmission assembly, the combination and separation transmission assembly drives the combination and separation indication piece to reciprocate on the positioning disc; the over-travel indication structure comprises an over-travel indication piece and an over-travel transmission assembly, the over-travel transmission assembly drives the over-travel indication piece to slide on the positioning disc in one direction; the short-circuit indication structure comprises a short-circuit indication piece and a short-circuit transmission assembly, the short-circuit transmission assembly drives the short-circuit indication piece to reciprocate on the positioning disc; and the overload indication structure comprises an overload indication piece and an overload transmission assembly, the overload transmission assembly drives the overload indication piece to reciprocate on the positioning disc. The application integrates multiple fault indication functions and can realize independent and accurate indication of each pole of a multi-pole product.
Need to check novelty before this filing date? Find Prior Art