Silicone remote control button conductive principle
Silicone superior insulating properties are well known, but the silicone used in key aspects of a lot of time it takes silicone keypad with conductive properties, then the principle of conductive silicone keys on the remote control and how is it? Actually very simple, as long as the design of the remote control button silica gel when added at the bottom of a conductive substrate surface can be achieved. Silicone button remote control button is not pressed, when copper conductive substrate and the circuit board does not contact the bottom button, and the circuit is in an open state. When a certain force is applied on the top surface of the remote controller silicone keys, group keys to move it to the conductive circuit board copper foil, silica remote control button until the foil into close contact with the conductive substrate, this time, current flows through the conductive substrate other sheet copper, the circuit is turned on.