Use of membrane switch: There is strong pressure sensitive adhesive layer on the back of the membrane switch. When its release paper is torn off, it can be attached to the instrument panel, and the lead wire of the membrane switch is thin-film conductive band equipped with special socket for connection. Membrane switch with such structure brings great convenience and thus has been widely used. .
Main use of the membrane switch: (1) It can be used for power supply isolation, and disconnect the high-voltage overhaul equipment with the electrically charged equipment to produce a clearly visible cut-off point between them. (2) It can be used for isolation of coordination between the switch and circuit breaker, and to carry out switching operation according to the need of the system operation mode to change its connection mode. (3) It can be used to turn on or turn off the circuit with small current. Disconnecting switch can perform the following operations: It can turn on or turn off the shunt current of the circuit close; and turn on or turn off the ground lead of the transformer neutral point, but when the neutral point is installed with arc suppression coil, this operation can be performed only when the system is fault-free.
Membrane switch, also known as touch keyboard, adopts sealing structure composed by multilayer combination of the panel. It is a kind of new electronic component sealing the key switches, panels, tags, symbol display and liner together, and integrating with light, machine and electricity. It radically changes the exterior structure of electronic products, and can replace conventional keys of discrete components and perform tasks of the operating system more reliably. Membrane switch has many advantages: It is resistant to water, dust, oil and harmful gas erosion, and is stable and reliable in properties. It has small volume, long service life, and convenient installation. Its panel can be washed without damage of characters on it. It also has rich color and elegant appearance. Your product will obtain more distinct features of the time by using the membrane switch. Main types of the membrane switch: With rigid or flexible printed circuit board as substrate, the membrane switch panel is made with plastic (polycarbonate, polyester, etc.) faceplate with colored decorative patterns printed on it. It is installed with keys with hand feeling or not. It is a kind of electronic component integrating switch function with decorative function, and also has a new human-machine interface. Its switching circuit and connection mode of the complete appliance can be finished by welding or plug-in.
