A dustproof molded case circuit breaker with easy maintenance of parts

By designing a variety of structures in the plastic-shell circuit breaker, such as L-shaped clamps, threaded rods and clamping mechanisms, the flexible installation and rapid disassembly of the circuit breaker is achieved, which solves the problems of complex maintenance and cumbersome installation of the existing circuit breaker, and improves the installation and maintenance efficiency.

CN119153275BActive Publication Date: 2025-03-18WEST HOUSE ELECTRIC HANGZHOU CO LTD
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Patent Information

Application Number
CN202411659604.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-03-18
Estimated Expiration
2044-11-20

AI Technical Summary

Technical Problem

The maintenance of existing plastic case circuit breakers is complex, cumbersome, and the installation method is single, so they cannot flexibly meet different installation needs, which affects installation efficiency and maintenance efficiency.

Method used

A dust-proof plastic case circuit breaker for easy maintenance is designed. By setting a variety of structures between the lower plastic case and the upper plastic case, such as the second L-shaped clamp, the first L-shaped clamp, the threaded rod, the limiting plate, the clamping mechanism, etc., the circuit breaker can be installed on the slide rail or on the plane by bolts, and provides the function of rapid disassembly.

Benefits of technology

The compact and coherent installation process of the circuit breaker is realized, reducing operating steps and time consumption, and improving installation efficiency; at the same time, it provides a flexible installation method to adapt to different electrical equipment layouts and distribution cabinet designs; the rapid disassembly structure greatly improves maintenance efficiency and reduces equipment downtime.

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Abstract

The present invention discloses a dustproof molded case circuit breaker which is convenient for maintaining parts, and relates to the technical field of molded case circuit breakers, comprising a lower molded case, wherein an upper molded case is arranged on the lower molded case, and a manual lever is arranged on the upper molded case, and a fixing plate is hinged at the lower end of the lower molded case, and a threaded rod is installed on the fixing plate through a thread, and a limit plate is fixedly installed on the threaded rod, and a second L-shaped clamping plate is provided at the lower end of the lower molded case, and a convex groove is provided on the second L-shaped clamping plate, and the limit plate is rotatably installed in the convex groove provided on the second L-shaped clamping plate. The present invention installs the circuit breaker to a specified position and fixes the lower molded case and the upper molded case at the same time, and there is no need to spend time separately to handle the fixing work of the lower molded case and the upper molded case after completing the installation of the main body, so that the whole installation process can be more compact and coherent, and additional operation steps and time consumption are reduced, especially in large-scale electrical projects where a large number of circuit breakers need to be installed, and the installation efficiency can be significantly improved.
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