Patent ID: 7872204

Claim:
A watertight switch, which comprises: a cover and a base assembled together to form an accommodating space for mounting a switching module therein, wherein the cover and the base respectively have a first side surface and a second side surface, and at a combination surface between the cover and the base and extended from the first and second side surfaces, respectively has a first junction interface and a second junction interface which are correspondingly coupled together, borders between the first junction interface and the first side surface and between the second junction interface and the second side surface, at least one of the borders being inwardly shrunk to form a binding gap, the binding gap is gummed by an adhesive for fixedly combining and positioning the first and the second junction interfaces, and the adhesive fills the binding gap without flowing over the first and the second interfaces; and wherein the binding gap is located at the inner side of the switch between the first junction interface and the second junction interface.