Protector of circuit control

Abstract

The invention has following technical characters:one end of push button is embedded into one end of interlock link; the groove of the other end of the interlock link is movably held in contact piece. The side of interlock link is elastically against to the slope of a boss. When taking action, push bottom swings to drive the interlock link up and down, right and left shifting. When the push button is at position of power on, the interlock link makes lateral shift to one side of groove and breaks away from contact piece to make the contact piece be able to freely take off. At state of power on and current overload, the contact piece gets thermal distortion and pops up in reverse direction and is not limited by groove of interlock to make power off for circuit.

Description

technical field [0001] The invention relates to a circuit control protector. Background technique [0002] The operation of the power control switch is mainly to perform two actions of power-on (ON) and power-off (OFF) of the current loop. In addition to performing two functions of power-on (ON) and power-off (OFF), many current switch structures also have the function of automatically tripping and power-off when the current is overloaded and overheated, so as to prevent the fuse or breaker of the current circuit from not responding in real time when the current is overloaded. Risk of blackout or tripping. [0003] There are too many patents for various commonly used power control switches, such as the US Patent No. 5,262,748 applied by the applicant himself, other US Patents No. 4,167,720, No. 4,937,548, No. 5,223,813, No. 5,451,729, No. 5,558,211, etc. enumeration, but all such patents have common shortcomings, as follows: [0004] 1. There are many linked components, a...

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the disadvantages of common power control switch linkage structures, such as complex components, high production cost, indirect linkage relationship, slow response of linkage stroke and many faults in the operation of power control switches, especially to solve the shortcomings of commonly used power control switches in When the current is overloaded and overheated, it is impossible to trip the power-off (OFF) in real time, or the trip is incomplete, resulting in an overheating state where the circuit continues to flow; and when solving overload and overheating, the contact shrapnel is in a semi-tripped state, and when the contact shrapnel cools down When it jumps back to the power-on state again, the continuous repeated power-on and power-off will form sparks, causing dangerous problems

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