An energy-saving electromagnetic switch

Abstract

The invention relates to the technical field of a switch, specifically to an energy-saving electromagnetic switch. The energy-saving electromagnetic switch comprises a base, a rotary shaft arranged on the base and a conductive swinging rod which can swing around the rotary shaft; the conductive swinging rod is connected with an input terminal; first static contacts and second static contacts are arranged on the two sides of the conductive swinging rod respectively; the first static contacts and the second static contacts are connected with corresponding current output terminals respectively; an electromagnet is fixedly mounted on the rod body of the conductive swinging rod; a left permanent magnet and a right permanent magnet with opposite polarities are arranged on the base on the two sides of the electromagnet; the iron core of the electromagnet is wound with a first coil and a second coil; the first coil and the second coil are powered on to generate electric fields with opposite polarities; and the base is also provided with a positive electrode wiring terminal and a negative electrode wiring terminal used for supplying power for the first coil and the second coil.

Description

technical field [0001] The invention relates to the technical field of switches, in particular to an energy-saving electromagnetic switch. Background technique [0002] An electromagnetic switch is a device that is convenient for remote control of line switching or on-off. However, there are many problems with the electromagnetic switch in the prior art: on the one hand, the electromagnetic switch in the prior art often requires continuous power supply to the electromagnet to maintain the conduction of the power transmission end. , and long-term energization of the electromagnet will bring two problems: 1. Power loss, the electromagnet that is turned on will consume power; 2. The iron core of the electromagnet is magnetized. It is easy to be magnetized, and once the iron core is magnetized, it means that the electromagnetic switch is invalid; on the other hand, the electromagnetic switch in the prior art does not have a feedback function, and the remote control terminal can ...

AI Technical Summary

Problems solved by technology

[0002] An electromagnetic switch is a device that is convenient for remote control of line switching or on-off. However, there are many problems with the electromagnetic switch in the prior art: on the one hand, the electromagnetic switch in the prior art often requires continuous power supply to the electromagnet to maintain the conduction of the power transmission end. , and long-term energization of the electromagnet will bring two problems: 1. Power loss, the electromagnet that is turned on will consume power; 2. The iron core of the electromagnet is magnetized. It is easy to be magnetized, and once the iron core is magnetized, it means that the electromagnetic switch is invalid; on the other hand, the electromagnetic switch in the prior art does not have a feedback function, and the remote control terminal can only judge the electromagnetic switch on the line by detecting the on-off of the transmission terminal. However, in a complex power grid, multiple lines are intertwined together, and multiple electromagnetic control switches are required. If the circuit fails due to the failure of the electromagnetic switch, only the working conditions of the electromagnetic control switches are detected one by one. Only then can the location of the faulty switch be determined, which will greatly reduce the efficiency of circuit maintenance

Images