Automatic switch jump construction

Abstract

The invention discloses an automatic trip structure of a switch. The structure of the invention is movably pin-jointed with a box body by a button, one end of the button is downwards provided with an extension part; the extension part is provided with a groove in a bending shape, and an elastic component is arranged between the button and the box body in a group way; the elastic component provides elastic force for the button; a rod body at one end of a linkage component is embedded in the groove of the extension part of the button, and the rod body is capable of moving and locating repeatedly in the groove of the extension part; the other end of the linkage component is a clamping part that moveably clamps a free end of a contact sheet; the swing of the button can drive the linkage component to push and draw the free end of the contact sheet, causing the free end of the contact sheet to jump upwards and downwards so as to form a power-on state and a power-off state of a circuit loop; when the button in a position where a circuit is powered; the rod body of the linkage component is provided with a free displace space in the groove of the extension part, and when electrical power is overloaded, the contact sheet is heated and deformed to bounce freely in an opposite direction, freeing from the resistance of the linkage component or the button and forming the power-off state of the circuit loop.

Description

technical field [0001] The invention relates to a circuit control switch, in particular to a switch structure with automatic tripping and power-off when the current is overloaded. Background technique [0002] The operation of the power control switch is mainly to perform two actuation strokes of energizing (ON) and deenergizing (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 failing when the current is overloaded. Real-time response to power outage or trip hazards. [0003] Various existing patent applications related to power control switches are too numerous to enumerate, such as US Patent No. 5,262,748 applied by the applicant himself, and other US Patent Nos. 4,167,720, 4,937,548, 5,223,813, 5,451,729, and 5,55...

AI Technical Summary

Problems solved by technology

[0009] The present invention aims to solve the shortcomings of existing various power supply control switch interlocking structures, such as complicated components, high manufacturing cost, indirect interlocking relationship, slow response of interlocking strokes, and many faults in the operation of power supply control switches. When the power control switch is overloaded and overheated, it cannot trip off in real time or the trip is incomplete, resulting in an overheated state where the circuit continues to flow; and when the circuit is overloaded and overheated, 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, such continuous repeated power-on and power-off will easily form sparks, which will cause dangerous problems

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