I. Principle of micro switch
Micro switch is a kind of switch with tiny contact interval and snap-action mechanism, contact mechanism for switching action with specified travel and specified force, covered by a shell and with a driving lever outside.
The external mechanical force is applied to the action reed by means of a drive element (push pin, push button, lever, roller, etc.), which produces an instantaneous action when the action reed is displaced to a critical point, so that the movable and fixed contacts at the end of the action reed are quickly switched on or off.
When the transmission element on the force removed, the action of the reed to produce reverse action force, when the transmission element reverse travel to the action of the reed critical point, the reverse action is completed instantaneously.
When the reverse stroke of the actuator reaches the critical point of the reed action, the reverse action is completed instantaneously. Microswitches have small contact spacing, short action stroke, small actuating force, and rapid on-off action. The action speed of its movable contact is independent of the action speed of the transmission element.

Definition of microswitch
Micro switch is also called sensitive switch, it refers to the switch contacts between the spacing is relatively small, mainly used in electronic communications, household appliances and other products in the switch.

Characteristics of micro switch
(1) Micro size is relatively small, the switch current is relatively large. So it can be used in some circuits with large current.
(2) Its durability is better, because the contact is not easy to be damaged, it can improve its service life.
(3) When it is in operation, it has a unique touch and sound, and can be operated by sound and touch.

Micro switch wiring method
Micro switch wiring method is relatively simple, as long as the following steps, you can complete the wiring work.
1, you need to distinguish the different nodes above the micro switch, for example, there is a common point, there is a closed point, as well as a normally open point. After the distinction is made, you can start wiring.
2, the common point is like the socket in the zero line, so you can connect directly to the ground.
3, normally open point is like an open switch, to make the current through this point.
4, the closed point is to break the current through a node.
5, the corresponding point to the corresponding position can be.

Unionwell specializes in the production of a variety of microswitches, mouse microswitches, small microswitches, waterproof microswitches, charging gun microswitches, power tool microswitches, widely used in household appliances, electronic equipment, automation equipment, communication equipment, automotive electronics, instrumentation, medical equipment, power tools and other fields.