Mute micro-switch

Abstract

The invention discloses a mute micro-switch, which comprises a base, a cover, an upper buffer plate and an elastic body, wherein the cover covers the base to form an accommodating cavity; a guide coreis arranged in the accommodating cavity; a first foot terminal and a second foot terminal are inserted into the base; the upper buffer plate is arranged in the accommodating cavity and the lower endof the guide core passes through the upper buffer plate; the elastic body is arranged between the upper buffer plate and the base and located at the lower part of the guide core; one end of the upperbuffer plate is in contact with the first foot terminal and the other end is located at the upper part of the second foot terminal; a fixed contact is arranged on the upper end surface of the second foot terminal; a moving contact corresponding to the fixed contact is arranged on the lower end surface of the other end of the upper buffer plate; and a buffer top is arranged at one end part, close to the second foot terminal, of the elastic body. According to the mute micro-switch, no excessive force exists between the moving contact and the fixed contact and the life is greatly prolonged to 80,000,000 times; and when the elastic body bounces up and down, vibration of the elastic body is reduced under the action of buffer force, and generated sound is greatly reduced, so that the mute effectis further achieved.

Description

technical field [0001] The invention relates to a micro switch, in particular to a silent micro switch. Background technique [0002] Micro switch is a commonly used switch mechanism. It is a contact mechanism with a small contact interval and a quick action mechanism that performs switching actions with a specified stroke and a specified force. It is widely used in industry, electronics, machinery, and governance. Gold, electricity and other fields. [0003] The working principle of the existing micro switch is: the external mechanical force acts on the action reed through the transmission element (press pin, button, lever, roller, etc.), and when the action reed moves to the critical point, an instantaneous action is generated to make the action The moving contact at the end of the reed is quickly connected or disconnected from the static contact. [0004] The existing micro switch usually adopts the method of setting the movable contact on the action reed. Before and af...

AI Technical Summary

Problems solved by technology

With this conduction method, since the micro switch is often applied with a large pressing force, the corresponding action reed has a large elastic recovery force, so the moving contact exerts an excessive force on the static contact. , leading to a significant reduction in lifespan, the general lifespan is only 10 million times

[0005] At the same time, in the existing micro switch, the up and down bouncing of the action reed will be accompanied by the corresponding contact sound, resulting in a loud sound during the up and down pressing process, which is not suitable for a quieter environment.

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