US Patent 10498072 Waterproof connector

A butting surface (6) is formed on a tip of the receptacle (2) of a male connector (M), and a smooth sealing surface (10) is formed on a back side via a tapered surface (7, 9). A pad (5) to be butted in a compressed state by the butting surface (6) when the male connector and a female connector (M, F) are connected is mounted in a back part of a terminal accommodating portion (13) of the female connector (F). A seal body (14) separate from the pad (5) and held in close contact with the sealing surface (10) in a watertight manner is mounted in front of the pad (5) in the terminal accommodating portion (13).