Introduction to the basic concept of key (button) switch

The key switch is also called the button switch. The key switch is a switch that uses the button to push the transmission mechanism, make the dynamic contact and the static contact press on or off, and realize the circuit replacement.

There are many kinds of key switches, which are very different in complexity and function. The simple function is only single pole single throw. The complex function includes lighting and sign display. There are many units and various locking States, so that the switch can operate and indicate in the dark or in the dark at night. This key switch has dual functions of switch and indicator light, and is equipped with a variety of color indications.

The key switch adopts integrated circuit technology and external device technology to manufacture a new generation of photoelectric switching devices, which have intelligent functions such as time delay, broadening, external synchronization, anti-interference, high reliability, stable working area and self diagnosis.