Miniature circuit breaker

Abstract

The invention relates to the field of low-voltage electric appliances, in particular to a miniature circuit breaker. The circuit breaker comprises a circuit breaker shell, and an operating mechanism, an overload protection mechanism and a short-circuit protection mechanism which are respectively arranged in the circuit breaker shell; the operating mechanism comprises a lock catch piece and a jump buckle piece which are matched in a lock catch mode. The jump buckle piece comprises a jump buckle driven column, and the overload protection mechanism and the short circuit protection mechanism are respectively in driving fit with the jump buckle driven column to drive the jump buckle piece to rotate and release the locking fit with the locking buckle piece. The circuit breaker is simple in structure and reliable in action.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a small circuit breaker. Background technique [0002] The use of circuit breakers can effectively improve the safety of electrical equipment, and has been widely used at present, but most of the existing circuit breakers have the following problems: [0003] 1. The existing circuit breakers are generally installed in the distribution box. When the circuit breaker needs to be repaired or the failed circuit breaker needs to be replaced, the operator needs to check the circuit breaker installed on the circuit step by step, which is cumbersome; especially for plug-in circuit breakers As far as circuit breakers are concerned, they are generally installed in cabinets with a large number of installations. It takes a lot of time and energy to overhaul, replace faulty circuit breakers, find a specific circuit breaker, or judge the status of a circuit breaker, which affect...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing circuit breakers are generally installed in the distribution box. When the circuit breaker needs to be repaired or the failed circuit breaker needs to be replaced, the operator needs to check the circuit breaker installed on the circuit step by step, which is cumbersome; especially for plug-in circuit breakers As far as circuit breakers are concerned, they are generally installed in cabinets with a large number of installations. It takes a lot of time and energy to overhaul, replace faulty circuit breakers, find a specific circuit breaker, or judge the status of a circuit breaker, which affects the maintenance or search. or the efficiency of judgment, and there are certain security risks

[0004] 2. When the circuit breaker is used on some specific equipment with a small space, there are defects such as inability to install or high installation costs

[0005] 3. The signal output component of the circuit breaker can only output a single type of signal, which cannot meet the demand; and the installation reliability of the signal output component is low

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