Electrical connector assembly having waterproof function and method of manufacturing the same

An electrical connector assembly comprising:

• an insulative base;
• a first and second terminal modules respectively assembled to top and bottom surfaces;
• a first insulative piece molded to a top surface of the insulative base and covering a section of first terminal module;
• a second insulative piece molded to a bottom surface of the insulative base and covering a section of second terminal module;
• a waterproof ring surrounding the insulative base and the first and second insulative pieces;
• a metallic shell enclosing the insulative base, the first and second insulative pieces and pressing the waterproof ring;
• and
• a metallic clamp enclosing the insulative base and the first and second insulative pieces, wherein the metallic clamp is connected with the metallic shell;
• wherein an insulative housing is formed by the insulative base, the first insulative piece and the second insulative piece and the insulative housing defines a base portion, a front tongue portion, a middle portion disposed between the base portion and the front tongue portion, and a rear portion;
• wherein the base portion defines a circular slot, a recess and a groove, the circular slot receives the waterproof ring, the recess receives waterproof glue, so as to form a double waterproof structure, the groove receives a portion of the metallic clamp, the recess is located behind the circular slot, and the groove is located in front of the circular slot.

A method of manufacturing an electrical connector assembly, comprising the steps of:

• providing an insulative base having a metallic plate formed therein;
• assembling a first terminal module to a top surface of the insulative base;
• assembling a second terminal module to a bottom surface of the insulative base;
• molding a first insulative piece to the top surface of the insulative base;
• molding a second insulative piece molded to a bottom surface of the insulative base;
• assembling a waterproof ring to an outer surface of the insulative base, and the first and second insulative pieces;
• providing a first metallic piece surrounding the outer surface of the insulative base, the first and second insulative pieces and pressing the waterproof ring;
• providing a metallic clamp surrounding the insulative base and the first and second insulative pieces;
• and
• connecting the metallic clamp with the metallic piece;
• wherein an insulative housing is formed by the insulative base, the first insulative piece and the second insulative piece and the insulative housing defines a base portion, a front tongue portion, a middle portion disposed between the base portion and the front tongue portion, and a rear portion;
• wherein the base portion defines a circular slot, a recess and a groove, the circular slot receives the waterproof ring, the circular slot receives waterproof glue, so as to form a double waterproof structure, the groove receives a portion of the metallic clamp, the recess is located behind the circular slot, and the groove is located in front of the circular slot.