Microswitch

Abstract

The invention discloses a microswitch, and the microswitch comprises a housing and a sliding block. The sliding block is slidingly disposed in an internal chute of the housing. The interior of a first spring groove is provided with a first spring, and the interior of a second spring groove is provided with a second spring. The interior of a third spring groove is provided with a third spring, and the third spring is partly exposed in the first spring groove. The interior of a fourth spring groove is provided with a fourth spring. The fourth spring is partly exposed in the second spring groove. A first movable contact is installed between the first spring and the second spring, and a second contact is installed between the second spring and the fourth spring. The stiffness factors of the third and fourth springs are respectively greater than the stiffness factors of the first and second springs. The microswitch is provided with two normally-opened and normally-closed contacts. Because the upper and lower normally-opened and normally-closed contacts independently complete the conversion, the opening distance is large and the movable and static contact current-carrying area is large, there are no problems of false connection, small capacity and poor connection and disconnection capability in the conversion process.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of low-voltage power distribution equipment, and particularly relates to a micro switch of a circuit breaker. [0003] Background technique: [0004] In electrical equipment and power distribution appliances, with the development of various precision instruments and power grid communications, various indication functions, communication functions, and interlocking functions require more auxiliary switches. The original auxiliary switches are open and closed. The quantity has not been able to meet the requirements, and the volume of many devices has been limited. It is difficult to assemble more micro switches without increasing the volume. [0005] Summary of the invention: [0006] The technical problem to be solved by the present invention is to provide a two-open and two-close micro switch with small volume and low cost. [0007] In order to solve the above technical problems, the present invention is realize...

AI Technical Summary

Problems solved by technology

[0004] In electrical equipment and power distribution appliances, with the development of various precision instruments and equipment and grid communications, various indication functions, communication functions, and interlocking functions require more auxiliary switches. The original one-on-one-off auxiliary switch The quantity can no longer meet the requirements, and the volume of many devices has been limited. It is difficult to assemble more micro switches without increasing the volume.

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