Circuit device and drawer type circuit breaker comprising same

Abstract

The invention provides a circuit device and a drawer type circuit breaker. The breaker comprises a drawer type frame and a circuit breaker main body, wherein a current loop is arranged on the circuit breaker main body; the current loop comprises an incoming terminal chuck, an incoming terminal chuck bracket, a circuit module in the breaker main body, an incoming terminal contact pad, an outgoing terminal chuck, an outgoing terminal chuck bracket and an outgoing terminal contact pad; the incoming terminal chuck bracket and the outgoing terminal chuck bracket are respectively mounted on the incoming terminal contact pad and the outgoing terminal contact pad, and connected with the circuit module in the circuit breaker main body through the corresponding contact pads; and the incoming terminal chuck and the outgoing terminal chuck are respectively mounted on the incoming terminal chuck bracket and the outgoing terminal chuck bracket. The client terminals and plugs are saved; the length of the circuit is reduced; the contact points are reduced, so that the size of the product is reduced; and the power consumption and the consumption of copper and silver are also reduced.

Description

technical field [0001] The present invention relates to a circuit device and a circuit breaker including the circuit device, in particular to a circuit device in a drawer type circuit breaker and a drawer type circuit breaker including the circuit device. Background technique [0002] The drawer type circuit breaker is a circuit breaker commonly used in low-voltage power distribution equipment at present. The schematic diagram of the drawer type circuit breaker is as follows: figure 1 shown. exist figure 1 Among them, 1 represents the whole circuit breaker, and the circuit breaker is composed of a chassis 10 and a circuit breaker body 20 . Wherein, the circuit breaker body 20 is pulled out or pushed from the cradle 10 through the guide rails installed on the cradle, so as to realize disconnection and communication between the circuit breaker and the busbars at the incoming and outgoing terminals. figure 1 A state in which the circuit breaker body 20 is pulled out from the...

AI Technical Summary

Problems solved by technology

[0005] Such a structure has a long current path and many contact points, which has the disadvantages of large contact resistance, high power consumption, complex structure, and large product size.

In addition, since the material of all conductive parts in the circuit device is pure copper, the plating layer is silver plating layer, and the structure of the circuit breaker is all 3 poles or 4 poles, so it takes a lot of copper and silver materials, and the price of metal materials is also high. It is rising day by day, so the product of this structure also has the disadvantage of high cost

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