External mechanical force acts on the action reed through transmission elements (push pin, button, lever, roller, etc.). ), and when the action reed is displaced to the critical point, instantaneous action is generated, so that the moving contact and the fixed contact at the end of the action reed can be quickly connected or disconnected.
When the force on the transmission element is removed, the action reed generates a reverse force, and when the reverse stroke of the transmission element reaches the critical point of reed action, the reverse action is completed instantly. Micro-switch has the advantages of small contact spacing, short action stroke, small pressing force and fast on-off speed, and the moving speed of moving contact has nothing to do with the moving speed of transmission element.