Circuit breaker having self-locking function

Abstract

The invention discloses a circuit breaker having a self-locking function. The circuit breaker comprises an upper housing, a lower housing, a self-locking electromagnetic coil, and a self-locking elastic rubber sheet. The upper housing and the lower housing are connected together by a buckle, and the middle part of the upper housing is connected with a starting switch in a penetrating way. The upper side and the lower side of the upper housing are respectively provided with a wire inlet groove and a wire outlet groove, the inner sides of which are provided with wire guiding holes. The upper side and the lower side of the inner cavity of the lower housing are respectively provided with an input end contact sheet and an output end contact sheet, and a connecting sheet is disposed between the input end contact sheet and the output end contact sheet. The circuit breaker having the self-locking function is advantageous in that the structure is simple, and a circuit-breaking and self-locking function is effectively realized, and therefore the own safety of the circuit breaker and safety of electrical devices are guaranteed.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a circuit breaker with a self-locking function. Background technique [0002] A circuit breaker (English name: circuit-breaker, circuit breaker) refers to a 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 switchgear. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. [0003] The existing circuit breaker does not have a self-locking function, so the circuit breaker itself will be burned and damaged when it is used, and because it does not have a self-locking function, it will also cause damage to electrical equipment and cause large economic losses. Traditional circuit breakers without self-locking function require frequent maintenance and replacement, which increases unneces...

AI Technical Summary

Problems solved by technology

[0003] The existing circuit breaker does not have a self-locking function, so the circuit breaker itself will be burned and damaged when it is used, and because it does not have a self-locking function, it will also cause damage to electrical equipment and cause large economic losses

Traditional circuit breakers without self-locking function require frequent maintenance and replacement, which increases unnecessary expenses

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