self locking switch safety Smart Electronics Lock/Non Lock SPDT

There is a self-locking device, which uses the self-locking performance to keep it on or off. This is a switch with self-locking. Among them, for certain needs, only one of several switches is allowed to be connected during operation. state, when the rest must be disconnected, combine several push button switches side by side and use an “interlocking mechanism” to allow only one of the switches to be in the connection locked state. When the other switch is pressed, the switch is locked, but at the same time The originally locked switch is released (such as the “play, fast forward, rewind” mechanical buttons on a tape recorder). These switches can have one or more sets of contacts; there are also many kinds of locking mechanisms. The most commonly used one is to use a spring hook to slide along a heart-shaped groove. The two tips of the heart-shaped groove correspond to the locking and releasing positions of the switch.

As the name suggests, “light touch” means that the state of the switch contact can be changed without much contact force. Therefore, the contact capacity is very small and the structure is simple. After the switch force is withdrawn, it can only maintain the original state. In other words, it is quite a use. It is a single-contact push button switch that can be pressed with a small amount of force and does not have a lock. At present, membrane switches and small micro switches can be considered tact switches. Most of the structures use two mutually insulated films with conductive lines printed on them. By pressing Connect the circuits to each other; or use a butterfly-shaped spring made of thin elastic metal, and press the spring to connect the printed circuits.