In many machines, we can see the momentary button switch, so what is the button switch? What does it do? What kind? Let's have a look.
Waterrpoof Pushbutton switch is a kind of main power supply equipment with simple structure and wide application. In the electric automatic control circuit, it is used to send control signals manually to control contactors, relays, electromagnetic starters, etc.
The button switch uses the button to push the driving mechanism to press or disconnect the moving contact and the fixed contact to realize circuit switching.
There are many kinds of button switch structures, which can be divided into ordinary button type, mushroom head type, self-locking type, self resetting type, spiral type, led, light symbol and key type. There are single button, double button, three button and different combination forms. Generally, the building block structure is adopted, which is composed of button cap, return spring, bridge contact and shell, etc. It is usually made of composite materials and has a pair of normally closed contacts and normally open contacts. Some products can increase the contact pair through multiple components in series. There is also an automatic hold button, which automatically leaves the closed position after being pressed, and can not be opened until the power is cut off.
Therefore, there are many kinds of button switches, and their functions are very prominent, so they are a very good choice for people.
