CN212968181U

CN212968181U - Electric connector

Info

Publication number: CN212968181U
Application number: CN202021837877.3U
Authority: CN
Inventors: 蔡添庆
Original assignee: Dongguan Chengfeng Electronic Co Ltd
Current assignee: Dongguan Chengfeng Electronic Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-13
Anticipated expiration: 2030-08-28

Abstract

The utility model relates to an electric connector, which is provided with an insulating body, a first group of terminals, a second group of terminals, a middle iron sheet, an EMI elastic sheet and a metal shell, wherein the insulating body is formed by molding a first insulating block and a second insulating block together; the first group of terminals are punched and molded into a whole with the first insulating block, the second group of terminals are punched and molded into a whole with the second insulating block, the first insulating block carries the first group of terminals to be combined on the second insulating block, and a positioning column is arranged on the side surface of the second insulating block facing the first insulating block; the middle iron sheet is formed by punching and assembled with the positioning columns on the second insulating block in an alignment mode through the positioning holes, and the middle iron sheet is communicated with the grounding terminals of the first group of terminals and the second group of terminals; the EMI elastic sheet and the metal shell are sequentially connected with the insulation body in a surrounding manner and are in conduction connection with the middle iron sheet. The utility model improves the stability of terminal assembly and the performance of products through grading combination and effective positioning; the product structure is more reliable, long service life.

Description

Electric connector

Technical Field

The utility model relates to an electric connector technical field.

Background

Conventionally, a USB Type-C electrical connector is a brand new Universal Serial Bus (USB) hardware interface, and Type-C is a brand new interface established by USB standardization organization in order to solve the long-term non-uniform physical interface specification and the drawback that electric energy can only be transmitted in one direction, and has the greatest appearance characteristic that the upper and lower ends thereof are completely consistent, and the USB Type-C electrical connector supports insertion in both forward and reverse directions, and compared with Micro-USB, a user does not need to distinguish the front and back of the USB. And it integrates the functions of charging, displaying and data transmission. However, because USB Type-C electric connector terminal quantity is many, current embedding mould injection moulding integrated into one piece preparation or implanted equipment terminal form all have the terminal row fixed inaccurate, influence the defect of product quality.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide an electric connector, guarantee the stability of terminal and the wholeness of product, the structure is more reliable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electrical connector, comprising:

the insulating body is formed by molding a first insulating block and a second insulating block together;

the first group of terminals are formed by punching and molding a first material belt, the first group of terminals and a first insulating block are integrally injected and molded, the first insulating block is provided with a first plug-in part and a first rear seat part, first contact parts of the first group of terminals are exposed on the first plug-in part and are arranged in a row, first tin pins of the first group of terminals protrude out of the first rear seat part in a pin shape, a first combination step part is arranged on the first rear seat part, and the arrangement position of the first combination step part is opposite to the protruding direction of the first tin pins;

the second group of terminals are formed by punching and molding on the basis of a second material belt, the second group of terminals and a second insulating block are integrally molded by injection, the second insulating block is provided with a second plug-in part and a second rear seat part, second contact parts of the second group of terminals are exposed on the second plug-in part and are arranged in a row, second tin pins of the second group of terminals protrude out of the second rear seat part in a patch shape, the second rear seat part is vertically bent relative to the second plug-in part, and a second combination step part is arranged on the inner side of the second rear seat part; the first insulating block carries the first group of terminals to be combined on the second insulating block, the second combining step part is in alignment joint with the first combining step part, and the first rear seat part is positioned and leaned on the inner side of the second rear seat part; the first inserting part and the second inserting part are vertically overlapped and meet the requirement that the upper side surface and the lower side surface of the first contact part and the second contact part are exposed; a positioning column is further arranged on the side surface, facing the first insulating block, of the second insulating block;

the middle iron sheet is formed through punching, a positioning hole is formed in the middle iron sheet, and the middle iron sheet is assembled with the positioning column on the second insulating block in an alignment mode through the positioning hole, so that the middle iron sheet is embedded between the first insulating block and the second insulating block, and the middle iron sheet is simultaneously communicated with the grounding terminals of the first group of terminals and the second group of terminals;

the EMI elastic sheet is divided into an upper elastic sheet piece and a lower elastic sheet piece, and the upper elastic sheet piece and the lower elastic sheet piece are connected with the insulation body in a surrounding manner and are in conduction connection with the middle iron sheet;

the metal shell is sleeved on the periphery of the insulating body and forms a plug interface, and the first plug part and the second plug part are in a tongue-shaped shape in the plug interface so as to be butted with an external connector; the metal shell clamps and fixes the insulation body and the EMI elastic sheet, and the metal shell is connected with the EMI elastic sheet in a conduction mode.

According to the scheme, the middle iron sheet is further provided with a side wing, and the side wing protrudes out of the insulation body and is in conduction connection with the metal shell.

In the above solution, the first inserting portion of the first insulating block is provided with a first air hole, and the first air hole is arranged between adjacent first contact portions of the first set of terminals; and a second air hole is arranged on the second plugging part of the second insulating block and is arranged between the adjacent second contact parts of the second group of terminals.

The utility model improves the stability of terminal assembly and accurate terminal row fixation through grading combination and effective positioning, thereby improving the performance of products; the product has good structural integrity, more reliable structure, high product yield and long service life.

Description of the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the front view of the embodiment of FIG. 1;

FIG. 3 is an exploded view of the embodiment of FIG. 1;

FIG. 4 is a schematic view of the connection structure of the first insulating block and the first set of terminals in the embodiment of FIG. 1;

FIG. 5 is a schematic view of a connection structure between a second insulating block and a second set of terminals in the embodiment of FIG. 1;

FIG. 6 is a schematic structural view of the middle iron sheet of the embodiment of FIG. 1;

fig. 7 is a schematic view of the combination structure of the insulating body of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 7, the present invention relates to an electrical connector, which includes an insulating housing 1, a first set of terminals 2, a second set of terminals 3, a middle iron sheet 4, an EMI elastic sheet 5 and a metal shell 6.

The insulating body 1 is formed by molding the first insulating block 11 and the second insulating block 12 together, and the whole structure is good. This first group terminal 2 is based on first material area stamping forming, and first group terminal 2 and first insulating block 11 are moulded plastics integratively, reach first group terminal 2 and stabilize on first insulating block 11 to can guarantee the position and the stability of terminal. The first insulating block 11 has a first mating portion 111 and a first rear seat portion 112, the first contact portions 21 of the first set of terminals are exposed on the first mating portion 111 and arranged in a row, and the first solder tails 22 of the first set of terminals protrude from the first rear seat portion 112 in a pin shape so as to be soldered by a plug-in upper board. The first rear seat 112 is provided with a first coupling step 113, and the first coupling step 113 is provided at a position opposite to the direction in which the first solder tail 22 protrudes. This second group terminal 3 is based on the stamping forming is taken to the second, and second group terminal 3 and second insulating block 12 are moulded plastics integratively, reach second group terminal 3 and stabilize on second insulating block 12 to can guarantee the position and the stability of terminal. The second insulating block 12 has a second mating portion 121 and a second rear seat portion 122, the second contact portions 31 of the second set of terminals are exposed on the second mating portion and arranged in a row, and the second solder tails 32 of the second set of terminals are protruded out of the second rear seat portion 122 in a patch shape so as to be soldered by the attached upper board. The second rear seat portion 122 is bent perpendicularly to the second mating portion 121, and a second coupling stepped portion 123 is provided inside the second rear seat portion. The first insulating block 11 carries the first set of terminals 2 assembled on the second insulating block 12, the second engaging step 123 is engaged with the first engaging step 113 in alignment, and the first rear seat 112 is positioned against the inner side of the second rear seat 122, so that the first insulating block 11 and the second insulating block 12 are assembled together and molded to form the insulating body 1. The first mating part 111 and the second mating part 121 are stacked up and down, and the first contact part 21 of the first set of terminals 2 and the second contact part 31 of the second set of terminals 3 are exposed at the upper and lower sides for electrical plug connection. The side of the second insulating block 12 facing the first insulating block 11 is further provided with positioning pillars 124, and the shape, number and position of the positioning pillars 124 are selected according to practical situations, and are not limited herein. This well iron sheet 4 passes through stamping forming, be equipped with locating hole 41 on the well iron sheet 4, and through locating hole 41 and the equipment of counterpointing of reference column 124 on the second insulating block 12, iron sheet 4 inlays to be established between first insulating block 11 and second insulating block 12 in reaching, and well iron sheet 4 communicates the ground terminal of first group terminal 2 and second group terminal 3 simultaneously, increase ground area, play fine shielding effect, the crosstalk that signal terminal produced in signal transmission process has been reduced, the crosstalk has been improved, satisfy the high frequency. EMI shell fragment 5 divide into upper and lower shell fragment spare, upper and lower shell fragment spare with surround form connect insulator 1 and with well iron sheet 4 turn-on connection, as shown in figure 3, 7, upper and lower shell fragment spare is inserted insulator by the stabilizer blade respectively, when obtaining firm the connection, still with well iron sheet 4 turn-on connection, simple structure, the equipment is convenient to realize the contact between the part. The metal housing 6 is sleeved on the periphery of the insulating body 1 and forms a socket 61, and the first plug part 111 and the second plug part 121 are in a tongue-shaped form in the socket 61 so as to be butted with an external connector. The metal shell 6 clamps and fixes the insulation body 1 and the EMI elastic sheet 5, and the metal shell 6 is in conduction connection with the EMI elastic sheet 5, so that a good shielding effect is achieved, crosstalk is improved, and high-frequency and high-speed requirements are met.

Referring to fig. 3 and 6, in the embodiment, the middle iron sheet 4 is further provided with a side wing 42, and the side wing 42 protrudes out of the insulation body 1 and is in conductive connection with the metal shell 6, so as to increase a ground conduction point and obtain a better grounding effect. Referring to fig. 3 and 7, the first insertion-connection portion 111 of the first insulating block 11 is provided with a first air hole 114, and the first air hole 114 is disposed between the adjacent first contact portions 21 of the first set of terminals; the second plug part 121 of the second insulating block 12 is provided with a second air hole 125, the second air hole 125 is arranged between the adjacent second contact parts 31 of the second group of terminals, and the structure utilizes air media in the first air hole 114 and the second air hole 125 to improve the electrical performance between the adjacent first contact part 21 and the adjacent second contact part 31, improve crosstalk and meet the requirements of high frequency and high speed.

In the utility model, the first group of terminals, the second group of terminals and the middle iron sheet are assembled and fixed, and then the corresponding material belts are removed; the first tin pins 22 of the first group of terminals and the second tin pins 32 of the second group of terminals are staggered and protruded, and different forms of upper plate welding are adopted; in the assembly, the first solder tails 22 are welded through the plug-in type upper board, so that the corresponding positioning performance is realized, the second solder tails 32 are welded in a patch mode, the assembly is convenient, the layout of the upper board connection is optimized, and the assembly efficiency and the quality of the electric connector are improved.

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims

1. An electrical connector, comprising:

2. The electrical connector of claim 1, wherein the middle iron plate further has a side wing, and the side wing protrudes from the insulating housing and is electrically connected to the metal shell.

3. An electrical connector as claimed in claim 1, wherein the first mating portion of the first dielectric block is provided with a first air hole, the first air hole being disposed between adjacent first contact portions of the first set of terminals; and a second air hole is arranged on the second plugging part of the second insulating block and is arranged between the adjacent second contact parts of the second group of terminals.