USB socket and manufacturing method thereof

Abstract

The invention provides a USB socket, and the socket comprises a plug connector and a metal shell sleeved outside the plug connector. The plug connector comprises a terminal group and an insulating body for fixedly holding the terminal group into a whole, and the insulating body comprises a base part, a wrapping part formed by extending forwards from the base part and a butt joint tongue part formed by extending forwards from the wrapping part; the terminal group at least comprises a pair of grounding terminals located at the outermost side and a pair of power supply terminals located between the grounding terminals. Each power supply terminal comprises an embedded part embedded into the insulating body, a welding pin formed by extending backwards from the embedded part, a first contact part which extends forwards from the embedding part and the surface of which is exposed out of the vertical first side surface of the butt-joint tongue part, and a second contact part which is bent reversely from the front end of the first contact part and extends backwards to form the surface of the second contact part and the surface of which is exposed out of the vertical second side surface of the butt-joint tongue part. The manufacturing cost can be effectively reduced.

Description

technical field [0001] The invention relates to the field of electrical connectors, in particular to a USB socket and a manufacturing method thereof. Background technique [0002] The traditional USB interface needs to be plugged in the specified direction, such as the Micro USB interface, the corresponding plug and socket need to be connected in the established docking direction, and the structure size is very small, and the plastic structure strength is insufficient. Even if there is an anti-mis-insertion design, if some users forcefully insert it incorrectly, it will still cause irreversible damage to the socket end in the electronic device. For example, the docking tongue plate is damaged and displaced as a whole, causing the docking tongue to be unable to be inserted into the cavity of the plug. To achieve docking, even after repeated wrong plugging and unplugging causes damage to the tongue plate, the socket terminals on the tongue plate will be broken and the charging...

AI Technical Summary

Problems solved by technology

[0002] The traditional USB interface needs to be plugged in the specified direction. For example, the Micro USB interface, the corresponding plug and socket need to be docked according to the established docking direction, and the structure size is very small, and the plastic structure is not strong enough. When the user plugs in, it is easy. Even if there is an anti-mis-insertion design, if some users forcefully insert it incorrectly, it will still cause irreversible damage to the socket end in the electronic device. For example, the docking tongue plate is damaged and the whole shifts, resulting in the docking tongue cannot be inserted into the cavity of the plug. Realize docking, even if the tongue plate is damaged by repeated wrong plugging and unplugging, the socket terminal on the tongue plate will break and completely lose the charging and signal transmission functions

The Type C USB socket solves the problem of the traditional Micro USB interface and realizes the compatibility of positive and negative insertion. However, in order to adapt to the miniaturization of electronic equipment, the Type C connector is still small in size and structure, and the internal functions that need to be implemented are more powerful. , the full version of the Type C interface needs to set up to 24Pin independent terminals on the upper and lower sides. Process, the existing process generally adopts three-time injection molding process, for example, first, the metal middle plate and one row of terminal groups are injection-molded as one, and the other row of terminal groups is injection-molded as one, and then the two are superimposed into one again Injection molding is integrated; finally, in order to cut the tape at the front end of the terminal group, injection molding is required again to wrap the end edge

With so many injection molding processes, the manufacturing cost of products remains high and it is difficult to adapt to the highly competitive market

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