US Patent 11602065 Waterproof structure of electronic device

This disclosure provides a waterproof structure of an electronic device having a box, a cable, a sealant, and a cover. The box has an opening and a groove defined on the box along an edge of the opening, the groove is extended in a closed curve manner, and an outer through opening communicated with the groove is defined on an external surface of the box and the groove has an inner through opening communicated with an internal space of the box. An outer baffle and an inner baffle respectively corresponding to the outer and the inner through opening are arranged on the cable, the cable penetrates the box through the outer and the inner through opening, and the outer and the inner baffle respectively close the outer and the inner through opening. The sealant is filled in the groove. The cover body covers the opening and closes the groove.