Principle of Membrane Switch

Membrane switch is an operating system that integrates key functions, indicating elements, and instrument panels. It consists of four parts: panel, upper circuit, isolation layer, and lower circuit. When the membrane switch is pressed, the contacts of the upper circuit deform downwards, and contact with the plates of the lower circuit to conduct. After the finger is released, the upper circuit contacts bounce back, the circuit is disconnected, and the circuit triggers a signal. The membrane switch has a rigorous structure, beautiful appearance and good airtightness. It has the characteristics of moisture resistance and long service life. It is widely used in electronic communication, electronic measuring instruments, industrial control, medical equipment, automobile industry, smart toys, household appliances and other fields.

Membrane switch, also known as light touch keyboard, adopts a flat multi-layer combination of integral sealing structure. It is a kind of integration of light, mechanism and electricity that seals the key switch, panel, mark, symbol display and liner together. New electronic components are a fundamental change in the appearance and structure of electronic products. They can replace the buttons of conventional discrete components and perform the tasks of the operating system more reliably.

The membrane switch has good waterproof, dust-proof, oil-proof, harmful gas erosion, stable and reliable performance, light weight, small size, long life, convenient assembly, the panel can be washed without damage to the characters, rich in color, beautiful and generous, etc. advantage. Use membrane switches to make your products more characteristic of the times. The main type of membrane switch The membrane switch panel is a rigid or flexible printed circuit board as the base body, and it is installed with hand-feeling or non-hand-feeling keys, and then covered with plastic (polycarbonate PC, polyester PET) printed with colorful decorative patterns. Etc.) The electronic components composed of thin-film panels and integrating switch functions and decorative functions are a new type of man-machine dialogue interface. The connection between the switch circuit and the whole machine can be done by welding or plugging.