US Patent 7785153 Power connector with sealed inner base member

A power connector (100) includes an insulator (2) and a cap (1). The insulator defines a bottom wall and three mounting holes (21, 22 and 23) extending upwards from the bottom wall, the three mounting holes array in a triangle along a vertical surface, and each mounting hole opens forwards and upwards adapted for receiving a terminal (3). The cap is slidably mounted on the insulator, and comprises a plate (14) extending vertically to cover front surfaces of the mounting holes of the insulator and a roof (12 and 13) extending horizontally from an upper end of the plate to cover upper surfaces of the mounting holes. The plate of the cap forms three through-holes (141, 142 and 143) respectively communicating with the corresponding mounting holes and three frames (1411, 1421 and 1431) extending horizontally into the corresponding mounting holes from inner walls of said three through-holes.