Mechanical structure of self-locking switch

January 09, 2023

Mechanical structure of self-locking switch

Self-locking switch generally refers to the switch with mechanical locking function, press, let go of the button is not completely jump up, in a locked state, need to press again to unlock fully jump up. It's called a self-locking switch. This switch was used in early TV sets and monitors with a complete power off.

The difference between the lamp self-locking switch and the ordinary self-locking switch is only that the lamp switch makes full use of the space in its keys to place a small indicator bulb or LED, one end of which is connected with the neutral line, and the other end is generally connected with the normally open contact of the switch through a step-down resistor. When the switch is closed, the equipment runs and provides a power supply for the indicator. Its types are diagonal type simultaneous switch, parallel type simultaneous switch, straddle type simultaneous switch.

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The difference between self - locking switch and touch switch system

In fact, the switch performance with self-locking switch and touch switch are described from different aspects; "Self-locking" means that the switch can be kept in a certain state (on or off) by the locking mechanism, and "light touch" means the amount of force used to operate the switch. Generally speaking, the mechanical switch may be distinguished in this way: the switch from the mode of operation of the point knob type, plate moving type (including the nuke switch, boat switch), button type; Most of the knob and plate moving switch can be kept (locked) in the switched on or off state after operation, such as the daily use of the light switch, fan speed control switch, most of this type of switch need not emphasize whether with self-locking, because there are obvious "direction of operation".