THE WATERPROOF PRINTED CIRCUIT BOARD WHICH HAS MEMBRANE SWITCH

摘要

PURPOSE: A waterproof PCB(Printed Circuit Board) equipped with a membrane switch is provided to prevent corrosion due to water or moisture by preventing the water or the moisture from getting in to the inside of a circuit and upper/lower contact points of the membrane switch. CONSTITUTION: An air discharge member(300) is connected to a part selected among air passing grooves(104). The aid discharge member discharges air by being exposed to the outside of a membrane switch. Inner sides and upper/lower sides of upper/lower PCBs are sealed by being adhered with each other.