Equidirectional dual-thrust electromagnetic relay

Abstract

The invention relates to an equidirectional dual-thrust electromagnetic relay, which consists of a main body, an electromagnetic contact, a permanent magnet and double spring plates. Input ends of two upper and lower contacts of the main body are connected with an input power, while output ends thereof are adapted with the electromagnetic contact. The electromagnetic contact is fixed between the output ends of the two contacts of the main body by rotating contenting points. A lower end of a static spring plate of the double spring plates is connected on a phase output end. An upper end of a dynamic spring plate of the double spring plates is fixedly connected with an upper end of the static spring plate, while a lower end thereof is linked with the permanent magnet. The permanent magnet takes a shape of right-angle trisquare. The permanent magnet connected with a connecting end of a conducting strip is arranged on one side, and a static contact fixedly connected with the dynamic spring plate of the double spring plates and a dynamic contact movably connected with the static spring plate of the double spring plates are arranged on the other side. The invention has meticulous design and light and reliable structure, realizes improvement of the functions of the relay by using the basic physical principles, has high practical value and can effectively improve the working reliability of the electric power circuit.

Description

technical field [0001] A Co-direction Double Thrust Electromagnetic Relay Overcoming the Repulsion of Short-circuit Current Background technique [0002] Electromagnetic relay is an electromechanical component, which is widely used in various power supply systems and power supply devices. The relay with permanent magnet can change the working state of the relay by the pulse signal, which not only saves electric energy, but also works reliably. In the power line, when the relay is energized, due to the strong current in the line, the contact moment will generate a strong short-circuit current between the contacts. The short-circuit current will generate a repulsive force opposite to the closing force of the contacts, which will interfere with the closing force generated by the permanent magnet, causing the contacts to fail to close effectively sometimes, or even bounce back, and thus generate a strong arc, melt and burn the contacts, and damage the relay. affect the supply ...

AI Technical Summary

Problems solved by technology

The short-circuit current will generate a repulsive force opposite to the closing force of the contacts, which will interfere with the closing force generated by the permanent magnet, cau...

Images