A micro switch is a quick switch that is actuated by pressure, and is also called a sensitive switch.
Its working principle is: external mechanical force acts on the action reed through transmission elements (press pins, buttons, levers, rollers, etc.), and after accumulating energy to a critical point, it produces instantaneous action, causing the end of the action reed to move. The contact and the fixed contact are quickly connected or disconnected. When the force on the transmission element is removed, the action reed produces a reverse action force. When the reverse stroke of the transmission element reaches the critical point of the action of the reed, the reverse action is instantaneously completed.
The contact distance of the micro switch is small, the action stroke is short, the pressing force is small, and the on-off is rapid. The movement speed of the moving contact has nothing to do with the movement speed of the transmission element. The basic type of the micro switch is the push pin type, which can be derived from the button short stroke type, button large stroke type, button extra large stroke type, roller button type, reed roller type, lever roller type, short boom type, and long boom type. and many more.
Micro switches are used in electronic equipment and other equipment for automatic control and safety protection devices that require frequent circuit switching. Micro switches are divided into large, medium, and small. According to different needs, they can be divided into waterproof type (used in liquid environment) and ordinary type. The switch connects two lines to provide power on and off control for electrical appliances and machines. It is widely used in mouse, household appliances, industrial machinery, motorcycles and other places. Although the switch is small, it plays an irreplaceable role.