Circuit breaker convenient to maintain

Abstract

The invention provides a circuit breaker convenient to maintain. The circuit breaker comprises a shell; a circuit breaker body is fixedly mounted on one side of the inner wall of the shell; heat dissipation mechanisms are fixedly mounted on the two sides of the circuit breaker body; the front side of the circuit breaker body is hinged with a disconnecting switch; a sealing plate is arranged on thefront side of the shell; clamping grooves are formed in the two sides of the sealing plate respectively; one side of the disconnecting switch runs through the sealing plate and extends to the outer surface of the sealing plate; locking mechanisms are arranged on the two sides of the outer surface of the shell respectively; a sliding mechanism is arranged on one side of the locking mechanism; dustproof mechanisms are arranged on the other two sides of the outer surface of the shell respectively; and fastening mechanisms are arranged on the two sides of the dustproof mechanisms respectively. According to the circuit breaker convenient to maintain, the sealing plate and the shell are in fixed connection by virtue of setting of the locking mechanisms, so that the sealing plate can be detachedconveniently in the later period, and the detachment mode can be more simplified, thereby bringing convenience to maintenance of the circuit breaker body after the sealing plate is detached in the later period and improving maintenance efficiency.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker which is convenient for maintenance. Background technique [0002] A circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time. Circuit breakers are divided into For high-voltage circuit breakers and low-voltage circuit breakers, the division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. [0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combination with overheating and und...

AI Technical Summary

Problems solved by technology

[0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off circuits when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch Combination with overheating and underheating relays, etc.; however, it is cumbersome to disassemble the housing of the circuit breaker, which consumes a lot of manpower, which makes it inconvenient to disassemble the housing for maintenance of the circuit breaker later

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