Two-shot molding process for Micro USB connector

Abstract

The invention discloses a two-shot molding process for a Micro USB connector. The two-shot molding process comprises the following steps of (1) putting a metal frame and a plurality of conductive terminals into an injection mold for positioning; (2) carrying out mold closing and first injection molding to mold an insulating body and forming a first module; (3) carrying out mold splitting, separating a terminal positioning part from the insulating body and forming a hollow part on a tongue plate; (4) dragging the first module to a second molding position of a male mold for second injection molding, filling the hollow part with plastic to mold a terminal separating and positioning block, and embedding, molding and fixing the terminal separating and positioning block and the first module together to form a second module; (5) coating the outer surface of the second module with a shielding case, carrying out dispensing between a protrusion part of the insulating body and the inner wall of the shielding case to form a waterproof plate, and embedding, molding and fixing the waterproof plate and a semi-finished product together to form the semi-finished product; and (6) finally mounting agland on the surface of the shielding case to form a finished product. The two-shot molding process is simple in assembly process and the overall strength of the connector is improved.

Description

technical field [0001] The invention relates to the technology in the field of connectors, in particular to a two-time molding process for a Micro USB connector. Background technique [0002] With the rapid development of the electronic industry, portable electronic devices, such as video cameras, PDAs, and mobile phones, have been widely used in daily life. Various electrical connectors, such as Micro-USB connectors, have become an indispensable part of various communication devices. [0003] The assembly process of the existing Micro-USB connector is as follows: firstly, a plurality of conductive terminals and metal frames are placed in the injection mold, and are pressed and positioned by the terminal separation positioning block, and then the insulating body is injection-molded to make the terminal separation positioning block and a plurality of conductive terminals are inlaid with the insulating body, and then, the shielding shell is covered outside the insulating body...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a two-time molding process for Micro USB connectors, which effectively solves the complex assembly process, low assembly efficiency, and high defective rate. The overall strength of the problem is not high

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