Plug-in miniature circuit breaker

Abstract

The present invention discloses a plug-in miniature circuit breaker. The breaker comprises a pedestal and a plug-in circuit breaker module; the pedestal comprises a pedestal housing with a jack and two wiring terminal modules; the plug-in circuit breaker module is installed in the jack in a pluggable mode; the plug-in circuit breaker module comprises a module housing, an electricity input socket,an electricity output socket and a switch-on-off operation mechanism; each wiring terminal module comprises a metal frame, a wiring screw, an electrical terminal and an electrical plug board; the electrical terminal comprises wire clamping board portions located at two sides of the jack and an electrical board portion located below the jack; the wire clamping board portions and the metal frame areclamped to form a wire clamping hole; the bottom portions of the electrical plug boards are fixed on the electrical board portion, and the top portion of the electrical board portion stretches out ofthe pedestal housing and are located in the jack; and the electricity input socket and the electricity output socket are located in the module housing, and the electricity input socket and the electricity output socket are respectively adapted to the electrical plug boards. The plug-in miniature circuit breaker cannot damage the pedestal and is convenient to maintain.

Description

technical field [0001] The invention belongs to the technical field of molded case circuit breakers, in particular to a plug-in miniature circuit breaker. Background technique [0002] In the prior art, the miniature circuit breaker generally adopts a standard clamping rail installation method, specifically, the bottom of the miniature circuit breaker is clamped on the standard clamping rail. There are wiring frames on the upper and lower sides of the circuit breaker, which are tightly connected to the power supply side and the load side through wire connection screws. When the product breaks down and needs to be repaired or replaced, it is necessary to disconnect the power supply, then remove the wires, remove the product from the rail, install a new product, then connect the wires, and then turn on the power supply. This card installation method is simple and easy to implement, has been widely used, and is the current mainstream. However, in this installation process, th...

AI Technical Summary

Problems solved by technology

However, in this installation process, the power supply of the line is discontinuous, and the power outage time is long, so it is not suitable for the installation, removal and maintenance of industries such as data centers and communication power supplies that require continuity of power supply.

In addition, due to the card installation, although its stability is better, it is still prone to shift or fall off in an environment with severe vibration

[0003] The existing plug-in miniature circuit breakers all have a built-in power socket in the socket of the base, and a protruding power-connection board is set on the plug-in circuit breaker module. The disadvantage of this structure is that: when the When hot-swapping with electricity, if the arc spark is generated, it basically occurs inside the base, which is easy to burn the power socket in the base, and because the base is generally fixed, it is inconvenient to disassemble and replace.

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