DEVICE FOR AUTOMATICALLY OPENING AND CLOSING WATER SUPPLY VALVE HAVING MEMBRANE SWITCH

摘要

PURPOSE: An automatic opening and closing apparatus of a water supply valve having a membrane switch is provided to improve convenience by supplying water with touching the membrane switch and by adjusting time and operation with detecting wrong operation. CONSTITUTION: A membrane switch is composed of a conducting circuit board(8) printing a conducting ink circuit(6) on a plastic membrane(5) and an insulation line(7); a conducting plate(9) contacted to the conducting circuit board with a coating layer(9b) on the rear part of a plastic membrane(9a); a surface protecting board(15) protecting the conducting plate; a metal support plate(10) protecting the conducting circuit board; a double-faced tape(11) mounted in the metal support plate and the lower part of a sink; and release paper(12) protecting the double-faced tape before mounting. Water is supplied automatically by actuating solenoid valves with a control unit and touching the membrane switch.