Automatic jumping device for switch

Abstract

The invention relates to an automatic tripping device of a switch and belongs to the switch technical field of the control circuit. The automatic tripping device comprises a box body, a button, a linkage element and a contact piece. The button is moveably pivoted on the box body; an extension part is downwardly arranged at one end of the button; a bent groove is formed on the extension part; an elastic part is assembled between the button and the box body; a rod body at one end of the linkage element is inserted in the groove of the extension part; a positioning element is assembled in the box body; the positioning element pushes against one side of the linkage element elastically; a clamping part is arranged at the other end of the linkage element; and the clamping part movably clamps a free end of the contact piece. With the automatic tripping device, the switch can be installed at any angle or positions; the smooth operation of ON / OFF, and the automatic tripping to cut off electricity for overload and overheat can be achieved; the button can be reset to the original position for power reutilization in real time; a user can know that the switch is tripped and the electricity is cut off according to the position of the button; and the automatic tripping device has using convenience.

Description

technical field [0001] The invention relates to a switch for controlling a circuit, in particular to an automatic tripping device which has the function of automatically tripping and power-off when the current is overloaded, and which can be installed at any angle and orientation. Background technique [0002] The operation of the power control switch is mainly to perform two action strokes 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 patent cases for various known power control switches, such as US Patent No. 5,262,748 applied by the applicant himself, other US Pate...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to solve the shortcomings of various known power control switch interlocking structures, such as complex components, high production cost, indirect interlocking relationship, slow response of interlocking strokes and many faults in the operation of power control switches , especially when the known power control switch is overheated due to current overload, it cannot be tripped in real time (OFF) or the trip is incomplete, resulting in an overheated state where the circuit continues to flow; and when solving overload and overheating, the contact shrapnel is a half-jump In the off state, when the contact shrapnel cools down, it jumps back to the energized state, and continues to repeatedly energize and power off to form sparks, causing dangerous problems

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