Patent ID: 7858890

Claim:
A waterproof rotary switch comprising: a holder base, said holder base comprising a plurality of hooks extending from at least two opposite peripheral sides thereof; a switching component set mounted on said holder base, said switching component set comprising a fixed metal terminal, a movable metal terminal, and two conductors respectively connected to said fixed metal terminal and said movable metal terminal, said fixed meal terminal having a contact, said movable metal terminal having a contact movable relative to the contact of said fixed metal terminal and adapted for contacting the contact of said fixed metal terminal; an actuator mounted in said holder base, said actuator having a center shaft, a flange extending around said center shaft, an annular groove extending around said center shaft and surrounded by said flange, a connection wall suspending in said annlar groove and connected between said center shaft and said flange, at least one drain hole cut through said connection wall, and an actuating portion rotatable with said actuator to move the contact of said movable metal terminal between a first position where the contact of said movable metal terminal contacts the contact of said fixed metal terminal and a second position where the contact of said movable metal terminal is disconnected from the contact of said fixed metal terminal; and a top cover covering said holder base to hold said switching component set and said actuator on said holder base, said top cover comprising a plurality of hook holes that receive the hooks of said holder base respectively, a plurality of wire slots for the passing of said conductors, a top wall sloping radially and downwardly outwards in four directions from the center of said top cover to four periphery sides of said top cover, and a center axle hole cut through said top wall for the passing of the center shaft of said actuator, wherein said top wall is coated with a water repellent.