High-current self-power-off switch

Abstract

The invention discloses a high-current self-power-off switch. The switch comprises an outer shell, and the inner side of the outer shell is rotationally connected with a rotating rod through a rotating shaft. A second conducting strip and a balance weight iron sheet are fixedly connected to the two sides of the bottom of the rotating rod respectively, a carrying disc is fixedly connected to the top of the rotating rod, a sliding rail is fixedly connected to the inner side of the carrying disc, the sliding rail is sleeved with a sliding block of a top inwards-concave structure in a sliding mode, and a plurality of weights are arranged at the inwards-concave position of the top of the sliding block. In the present invention, firstly, a balance lever principle is adopted, so that high-currentcircuit break of the circuit is realized; secondly, the operation stability of the device is guaranteed by locking the self-unlocking structure, and finally, the maximum open-circuit current controlled by the device can be adjusted by increasing or decreasing the number of superposed weights according to the calculation relationship between the magnetic attraction force of the electromagnet and the current, so that the open-circuit current adjusting performance of the device is improved.

Description

technical field [0001] The invention relates to the technical field of switches, in particular to a high-current self-cutting switch. Background technique [0002] The word switch is interpreted as on and off. It also refers to an electronic component that can open a circuit, interrupt the current flow, or cause it to flow to other circuits. The most common switches are human-operated electromechanical devices that have one or more electrical contacts. The "closed" of the contact means that the electronic contact is conductive and allows current to flow; the "open circuit" of the switch means that the electronic contact is not conductive to form an open circuit and does not allow current to flow. [0003] Most of the traditional switches can only cut off the power manually. If a short circuit occurs or the electrical components are too large and the current is too large, it cannot automatically cut off the power, so there are certain safety hazards. Contents of the inven...

AI Technical Summary

Problems solved by technology

[0003] Most of the traditional switches can only be powered off manually. If a short circuit occurs or the electrical components are too large and the current is too large, the automatic power off cannot be realized, so there are certain safety hazards.

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