Plug-in miniature circuit breaker

Abstract

The invention discloses a plug-in miniature circuit breaker, which comprises a housing (A), a leading-out terminal (B), a leading-in terminal (C), a push button mechanism (D), an operating mechanism (G), an overload protection mechanism (H), an arc extinguishing mechanism (I), a short circuit protection mechanism (J) and a signal end (K), wherein the plug-in miniature circuit breaker is characterized in that the push button mechanism (D) is linked with a locking device (E) and a fixed unlocking device (F). According to the plug-in miniature circuit breaker, a connection line can be directly inserted, so that the disconnection operation is simple and convenient; meanwhile, the circuit breaker cannot be freely closed outside a cabinet and can be freely opened and closed in the cabinet through improving a locking mechanism, the circuit breaker cannot be pulled out of the cabinet through parts except for a push button and the circuit breaker cannot be easily taken out from the cabinet through pulling the push button, so that the installation and use security of the circuit breaker is ensured; the circuit breaker is suitable for a specific small space; and the problem that local temperature rise of the circuit breaker is too high is solved through rearranging the internal structure of the circuit breaker.

Description

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AI Technical Summary

Benefits of technology

This new design allows for easy replacement or removal without having to remove all components from its mountings when it needs servicing. It also improves security measures during maintenance work on equipment due to increased heat dissipation caused by direct connection between terminals instead of being forced open with buttons. Overall, this technology simplifies the process of replacing faulty circuits while maintaining their effectiveness.

Problems solved by technology

This patents describes different ways for connecting or disconnecting circuits between two terminal devices (circuit breaker) by means other than just inserting them through holes on one end. These techniques include plugs with screw threads, wire connections, magnetic fastenings, and tubular magnet systems. However, these solutions require extra effort during assembly due to the size required for each connection method.

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