Working Principle Of Self-locking Button Switch

Self-locking button switch is a common button switch. When the switch button is pressed for the first time, the switch is turned on and held, that is, self-locking. When the switch button is pressed for the second time, the switch is turned off, and the switch button pops out at the same time.

The self-locking button switch generally refers to the switch with its own mechanical locking function. After pressing it, the button will not jump up completely after releasing it. It is in the locked state and needs to be pressed again to unlock it and jump up completely. It is called a self-locking switch. Early TVs and monitors that were directly powered off were such switches.

The only difference between the illuminated self-locking button switch and the ordinary self-locking switch is: the illuminated switch makes full use of the space in the button to place a small indicator bulb or LED, one end of which is connected to the neutral line, and the other end generally passes through a The step-down resistor is connected in parallel with the normally open contact of the switch. When the switch is closed, the device is running and also provides power for the indicator light.