In the world we live in, there are many tiny parts, just like screws in huge machinery. Although they are inconspicuous, they are of great significance. Microswitch is such a "screw", which has made great contributions to improving our quality of life.



1. Understand microswitch



Microswitch is also called sensitive switch. It is a switch that achieves rapid conversion through pressure. Because the contact spacing of the switch is relatively small, the action service is very little during operation, so it is named. It also has its own exclusive symbol in the electrical text, which is recorded as SM.



2. How does it work



In fact, it is the working principle of microswitch. In fact, it is simply understood that the force acts on the action reed through the transmission elements such as button, lever and roller. When the reed displacement reaches the critical point, it will produce instantaneous action, so as to quickly link or separate the moving contact at the end of the action reed from the fixed contact. We can recall the feeling when we turn on the light and press the switch. The moment the light goes on and off is the working process of the microswitch.



3. Type of microswitch



With the increasingly wide application in production and life, the demand for micro switches increases, the types of micro switches increase rapidly, and there are hundreds of internal structures. They can be divided into ordinary type, small type and super small type by volume; According to the protection performance, it can be divided into waterproof type, dustproof type and explosion-proof type; It can be divided into single connection type, double connection type, multi connection type and so on.