Electric connector, manufacturing method thereof and coating manufacturing method

Abstract

The invention provides a manufacturing method of an electric connector, which comprises the following steps: forming an insulation body and enabling the insulation body to have a plurality of accommodating holes, wherein each accommodating hole is provided with a retaining groove and an accommodating groove and a wall plate is arranged between the retaining groove and the accommodating groove; plating a metal layer on each accommodating groove and enabling the metal layer to be cover the inner wall of each accommodating groove; removing the wall plate to enable the retaining groove to be communicated with the accommodating groove, fixing a plurality of terminals in the plurality of accommodating holes respectively and correspondingly and enabling the retaining portion of each terminal to be fixed in the retaining groove, wherein the terminals are not in conducting connection with the metal layers. In the manufacturing method of the electric connector, due to the wall plate is arranged between the retaining groove and the accommodating groove of each accommodating hole, expected metal layers are only formed on the inner walls of the accommodating grooves of the accommodating holes, and plating areas of the metal layers can be controlled accurately. Therefore, short circuit due to connection of the terminals and the metal layers can be prevented, mutual electromagnetic interference between the terminals is avoided, and a good electric connection function between the terminals and circuit boards is further guaranteed.

Description

technical field [0001] The invention relates to an electric connector, a manufacturing method thereof, and a plating layer manufacturing method. [0002] Background technique [0003] The electrical connector is generally used to be mounted on a circuit board to connect the circuit on the circuit board to a chip mated with it, and includes an insulating body and a plurality of terminals. As the distance between the terminals becomes smaller and smaller, how to ensure that information transmission is free from electromagnetic interference has become a problem that must be solved when developing high-density electrical connectors. A common method for preventing electromagnetic interference is to provide a metal shielding shell on the insulating body, or to plate a metal layer on the insulating body. [0004] In high-density electrical connectors, the electromagnetic interference problem in the signal transmission process is solved by plating the metal layer on the insulating...

AI Technical Summary

Problems solved by technology

[0004] In high-density electrical connectors, the electromagnetic interference problem in the signal transmission process is solved by plating the metal layer on the insulating body. Usually, the metal layer needs to be coated directly on the insulating body by spraying. The position of the layer is sprayed with a metal substance to form the metal layer. In this way, due to the large number and high density of the terminals, it is difficult to accurately control the plating area, and it is easy to form an unexpected metal layer on the insulating body. Make the terminal conduct and short circuit with the metal layer on the insulating body, affecting the electrical conduction performance between the terminal and the circuit board

[0005] In order to solve the problem of forming the unexpected metal layer, some adhesive tapes are pasted on the parts of the insulating body that do not need to be covered with the metal layer, and after the metal layer is formed on the corresponding part of the insulating body, tear off The adhesive tape described below, such a complicated process, and it is difficult to ensure the precise position of the adhesive tape, it is easier to form the unexpected metal layer on the insulating body, which will easily lead to the electrical connection between the terminal and the metal layer. Connected and short-circuited, affecting the electrical conduction function between the terminal and the circuit board

Images