Fall automatic power-off switch with spring reset

Abstract

The present invention relates to a switch. A fall automatic power-off switch with spring reset comprises an insulating shell and two wiring pins fixed to the shell. The shell is internally provided with an assembly chamber. The inner ends of the two wiring pins are in the assembly chamber which is internally equipped with a weight. The assembly chamber is internally provided with a weight guide cavity which extends along an up and down direction. The weight is in the weight guide cavity. The assembly cavity is also internally provided with a power-off spring which presses the conductive pieces on the inner ends of the two wiring pins under the effect of the weight and allows the conductive pieces to be separated from the wiring pins at the same time. The invention provides the fall automatic power-off switch with spring reset, the resistance of the conductive pieces which are connected to a pair of wiring pins can be maintained to be constant, and the problem of the heat generation phenomenon caused by the increase of the resistance of the conductive pieces which are connected to a pair of wiring pins after multiple times of opening and closing of an existing fall automatic power-off switch with spring reset is solved.

Description

technical field [0001] The present invention relates to a switch, in particular to a spring-returned self-power-off switch when it falls. Background technique [0002] A switch is an electrical component that interrupts or conducts current in a circuit. The structure of the switch is varied. There are push switches, rotary switches, and rocker switches according to the way they act when driving switches. Both the push switch and the rocker switch are turned on or off by pressing the button. A rocker switch is disclosed in a Chinese patent application No. 2011100719580, published on July 20, 2011, and titled "Quick Action Boat-shaped Switch". [0003] In order to make the electrical appliance automatically cut off when it falls down and improve the safety of the electrical appliance when it is used, a fall self-cut off switch with spring return is designed. The Chinese patent application No. 2006200732829, the public authorization announcement date is May 2, 2007, and the...

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a spring reset fall self-cutoff switch whose resistance of the conductive strips connected to a pair of terminal pins can keep constant for a long time, which solves the problem of the existing spring return fall self-cutoff switch After repeated opening and closing, the resistance of the conductive sheet connected to a pair of terminal pins will increase and generate heat.

[0006] The second purpose of the present invention is to further provide a spring-reset fall-off self-cutting switch with a short disconnection time and no repeated on-off phenomenon when the conductive sheets are closed, which solves the problem of the existing fall-off switch with conductive sheets. The on-off time of the pins is long, and there will be repeated on-off phenomena between the conductive sheet and the terminal pins when they are closed, which will easily cause ignition and arc amplification.

Images