The principle of micro switch
The external mechanical force acts on the action reed through transmission elements (pressing pins, buttons, levers, rollers, etc.), and when the action reed is displaced to the critical point, an instantaneous action occurs, making the moving contact at the end of the action reed and the fixed contact point to switch on or off quickly.
When the force on the transmission element is removed, the action reed generates a reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is completed instantaneously. The contact distance of the micro switch is small, the action stroke is short, the pressing power is small, and the on-off is fast. The action speed of the moving contact has nothing to do with the action speed of the transmission element.
When it comes to the wiring method of the micro switch, it is actually very simple. Generally, the micro switch has three points. One of these three points is the common point, the other is the normally open point, and the other is the closed point. The common point is like the one in the socket. The zero line, the normally open point is the point where the switch is opened so that the current flows, and the closing point is of course the contact that disconnects the current through. Connect the corresponding point to the corresponding location, and you're done. Although the method of wiring the micro switch looks very simple, it is still necessary to make relevant preparations.
When wiring the micro switch, the method is actually relatively simple, as long as the following steps are followed, the wiring can be successful.
1. It is necessary to distinguish the different nodes on the micro switch, such as a common point, a closed point, and a normally open point. Once the distinction is made, you can start wiring.
2. The common point is like the neutral line in the socket, so it can be directly connected to the ground line.
3. The normally open point is like an open switch, and the current must pass through this point.
4. The closing point is a node through which the current is disconnected.
5. Connect the corresponding point to the corresponding position.
Use of microswitches
The micro switch is small in size, but has a great effect, and can be seen everywhere in our lives. Such as computer mouse, car mouse, automotive electronic products, communication equipment, military products, testing equipment, gas water heaters, gas water heaters, gas stoves, small household appliances, microwave ovens, rice cookers, floating ball equipment, medical equipment, building automation, electric Tools and general electrical and radio equipment, 24-hour timers, etc.