What are the maintenance methods of membrane switch?

The utility model relates to a membrane panel key forming structure, which can be combined with a corresponding control panel. The pressing convex body convex in the center of the bottom surface of the transparent plastic film and the touch switch arranged on the control panel are opposite one by one to form a combination for pressing and touch control; The panel made by one stamping can replace the respective keys to open the mold to manufacture and assemble separately, which can save a lot of manufacturing cost and the man-hour cost of the respective installation combination, and has multiple economic benefits.

Panel key forming structure of membrane switch

The panel key forming knot of the membrane switch comprises a membrane switch sheet which is formed by punching and shearing and is divided by hollow lines and arranged in a connected sheet key with proper pressing recovery elasticity. The hollow line cuts the arrangement of the adjacent flaky keys that cannot be connected when pressed, and the surface of the flaky keys is directly hollowed out with words, numbers or symbols, and then a transparent plastic film is bonded on the bottom of the keys.

Main Performance Characteristics of Panel Key Forming Structure of Membrane Switch

1. The surface of the flaky keys is directly hollowed out with numbers, characters or symbols, and then a transparent plastic film is bonded on the bottom surface of the flaky keys, and the hollowing of the flaky keys is closed by the transparent plastic film, and the characters, numbers and symbols can be displayed through light without fear of water.

2. The utility model relates to a panel key forming structure of a membrane switch. A thin membrane switch sheet is formed by punching and shearing, and is divided and arranged by a hollow line into a sheet key shape with proper pressing recovery elasticity, and the hollow line cuts the arrangement of the adjacent sheet keys that cannot be connected when pressed.

What are the ways to repair the membrane switch:

1. First open the membrane switch, and then open the top layer by the Health membrane, with a multimeter to find the switch point by the Health connection with the circuit board, to determine the modified switch connection point and the original corresponding.

2. At each switch point of the lower layer membrane, a positioning hole is drilled on the metal plate with a positioning cone. The perforation size is slightly larger than the actual size of the emblem switch according to the column, so as to ensure that the emblem switch can move up and down in the hole without hindrance. If the hole is too small, the elastic effect of the shaped ring switch will cause the switch to fail.

3. According to the spacing of each small hole of the gold moon plate, fix the emblem switch on the printing plate, and connect the connecting wire according to the connecting point corresponding to each switch. At the same time, according to the actual space position 2 between the metal plate and the display plate, a corresponding printing plate edge is set aside to fix the switch plate. Since the new switch plate is positioned between the metal plate and the indicator light display plate, a hole corresponding to the indicator light position 2 of the display plate is also required to be punched on the printed plate. To determine the LED of the display board through the printed board can see the display signal from the panel, and there must be a certain distance between the line and the two boards to prevent a short circuit.