CN213782402U

CN213782402U - Electric connector

Info

Publication number: CN213782402U
Application number: CN202022909158.4U
Authority: CN
Inventors: 蔡添庆
Original assignee: Dongguan Chengfeng Electronic Co Ltd
Current assignee: Dongguan Chengfeng Electronic Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-23
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to an electric connector, an insulating main body of which is provided with an inserting end and a tin pin end which are opposite, and the inserting end is sunken to form a slot; the first terminal group and the second terminal group are respectively implanted into the insulating main body from the tin pin ends, the tin pin ends of the insulating main body are also assembled with grounding components, and the grounding components realize that all first grounding terminals in the first terminal group and all second grounding terminals in the second terminal group are connected together or in a grouped conduction manner; the grounding assembly is composed of a conductive rubber plug and a conductive series connection piece, the conductive rubber plug is arranged on the conductive series connection piece at intervals along the length direction of the conductive series connection piece and corresponds to the distribution of the first grounding terminal or the second grounding terminal, and the conductive rubber plug is embedded into the insulation main body and is connected with the corresponding first grounding terminal or the second grounding terminal in a conduction mode, so that the crosstalk generated by the signal terminal in the signal transmission process is effectively reduced, the unequal potential difference between the grounding terminals is reduced, the high-frequency performance is improved, and the high-frequency and high-speed requirements are met. Simple structure, convenient preparation and equipment.

Description

Electric connector

Technical Field

The utility model belongs to the technical field of the electric connector technique and specifically relates to electric connector with high frequency performance.

Background

In order to meet the increasing demand of the computer industry for the amount and speed of information processing, high frequency transmission is the first problem to be solved by the electrical connector. In order to solve the above problems, an existing electrical connector includes an insulating body, and a plurality of ground terminals and a plurality of signal terminals that are disposed in the insulating body, where the insulating body includes two side walls that are disposed opposite to each other in a transverse direction and a slot that is located between the two side walls, each of the side walls is provided with a plurality of signal terminals and a plurality of ground terminals, and ground terminals are distributed on two sides of a pair of signal terminals that transmit high-speed differential signals, so as to implement high-frequency transmission. However, as the requirement of transmission rate increases and the requirement of high frequency performance increases, the above design cannot effectively meet the above requirement because the unequal potential difference between the ground terminals can generate ground mode resonance. The grounding structure is added on the connector which appears later to improve the high-frequency performance of the electric connector, but the existing grounding structure has the defects of inconvenient assembly and unstable conduction connection, or has complicated structure and high manufacturing cost.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide an electric connector, satisfy the high-speed requirement of high frequency, and simple structure, convenient preparation and equipment.

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

an electrical connector, comprising:

the insulating body is provided with a plug-in end and a tin pin end which are opposite, the plug-in end is sunken towards the tin pin end to form a slot, and the slot is matched with an external butt-joint element for plug-in connection;

the first terminal group and the second terminal group are respectively implanted into the insulating main body from the tin pin end, and are respectively arranged in the opposite inner side walls of the slot to meet the conduction connection with an external butting element inserted into the slot; the tin pin end of the insulating main body is also provided with a grounding assembly, and the grounding assembly realizes the connection of all the first grounding terminals in the first terminal group and all the second grounding terminals in the second terminal group together or in a grouped way; the grounding assembly is composed of a conductive rubber plug and a conductive series connection piece, the conductive rubber plug is arranged on the conductive series connection piece at intervals along the length direction of the conductive series connection piece and corresponds to the distribution of the first grounding terminal or the second grounding terminal, and the conductive rubber plug is embedded into the insulating main body and is connected with the corresponding first grounding terminal or the second grounding terminal in a conduction mode.

Above-mentioned scheme is further, electrically conductive plug links together through the mode of moulding plastics and electrically conductive series connection piece, and electrically conductive plug has the body and by the protruding arm of playing to first ground terminal or second ground terminal in body one side, plays the arm and supports to press and connect first ground terminal or second ground terminal.

Further to the above, the conductive series is a metal sheet.

The conductive series connection piece is divided into a left metal sheet and a right metal sheet which are independent or connected, the two metal sheets are matched with the opposite inner side walls of the slots, and the left metal sheet and the right metal sheet are provided with conductive rubber plugs at intervals so as to be connected with the first grounding terminal or the second grounding terminal in a matched mode.

The utility model discloses a ground connection subassembly comprises electrically conductive plug and electrically conductive tandem member, electrically conductive plug is arranged and is corresponded with the distribution of first ground terminal or second ground terminal along the length direction interval of electrically conductive tandem member on electrically conductive tandem member, electrically conductive plug embedding insulating main part and with the first ground terminal or the second ground terminal turn-on connection that correspond, the crosstalk that signal terminal produced in signal transmission process has been reduced, reduce the potential difference that varies between the ground terminal, improve high frequency performance, satisfy the high-speed requirement of high frequency. The conductive series connection piece plays a role in connection and conduction, improves the integrity and strength of the grounding assembly, is simple in structure, convenient to manufacture and assemble, high in universality and capable of well meeting the requirements of customers.

Description of the drawings:

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

FIG. 2 is a schematic view of the embodiment of FIG. 1 from another perspective;

FIG. 3 is an enlarged view of a portion of the embodiment of FIG. 2;

FIG. 4 is a schematic view of a solder tail end structure of the embodiment of FIG. 1;

FIG. 5 is an exploded view of the embodiment of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the internal structure of the embodiment of FIG. 1;

FIG. 7 is a schematic diagram of an embodiment of the grounding assembly shown in FIG. 1;

FIG. 8 is an enlarged view of a portion of the embodiment of FIG. 7;

fig. 9 is a schematic diagram of a second configuration of the grounding assembly 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. 1-9, which are schematic structural views illustrating a preferred embodiment of the present invention, the present invention relates to an electrical connector, which is used to cooperate with an external docking element (not shown) to transmit signals (such as high-speed signals). The electrical connector includes an insulative body 1, a first terminal set 2 including a first ground terminal 21, a second terminal 3 including a second ground terminal 31, and a ground assembly 4.

This insulating main part 1 is injection moulding's plastic part, is equipped with relative grafting end 11 and tin foot end 12 back to each other on insulating main part 1, and insulating main part 1 shown in the figure is the lengthwise extension, and grafting end 11 is the upside end of insulating main part 1, and tin foot end 12 is the downside end of insulating main part 1, grafting end 11 is sunken formation slot 13 to tin foot end direction, and this slot 13 adaptation outside butt joint component is inserted and is connected. In this embodiment, the slot 13 also extends lengthwise, and the bottom of the slot 13 is communicated with a terminal hole preset in the solder terminal 12. The first terminal set 2 and the second terminal set 3 are respectively implanted into the insulating main body 1 from the tin pin end 12, the terminal holes are used for positioning, implanting and stabilizing the corresponding first terminal set 2 and the second terminal set 3, the first terminal set 2 and the second terminal set 3 are respectively arranged in the relative inner side walls of the slot 13 after being implanted, a left-right butt-clamping mode is formed, and the conduction connection between the first terminal set and an external butt-joint element inserted into the slot is met. The first terminal set 2 includes a first ground terminal 21 and a corresponding signal terminal, and the second terminal set 3 includes a second ground terminal 31 and a corresponding signal terminal, in this embodiment, the first ground terminal 21 and the second ground terminal 31 are preferably alternately arranged in a staggered manner in the longitudinal direction of the slot, so as to improve the high frequency performance. The tin pin end 12 of the insulating main body is also assembled with a grounding component 4, and the grounding component 4 realizes that all the first grounding terminals 21 in the first terminal group and all the second grounding terminals 31 in the second terminal group are conducted and connected together or in groups, so that unequal potential difference between the grounding terminals is reduced, and high frequency performance is improved. The grounding assembly is composed of a conductive rubber plug 41 and a conductive series-connection piece 42, the conductive rubber plug 41 is arranged on the conductive series-connection piece 42 at intervals along the length direction of the conductive series-connection piece and corresponds to the distribution of the first grounding terminal or the second grounding terminal, and the conductive rubber plug 41 is embedded into the insulating main body and is connected with the corresponding first grounding terminal or the second grounding terminal in a conduction mode. The conductive series connection piece 42 plays a role in connection and conduction, improves the integrity and strength of the grounding assembly, facilitates subsequent assembly, effectively ensures the position between the conductive rubber plugs 41, and promotes the stability and effectiveness of connection and conduction.

Referring to fig. 1 to 9, the conductive plug 41 is connected to the conductive series member 42 by injection molding, the conductive plug 41 has a body 411 and an elastic arm 412 protruding from one side of the body to the first ground terminal or the second ground terminal, and the elastic arm 412 is connected to the first ground terminal or the second ground terminal in a pressing manner. During the assembly, the conductive rubber plug 41 is embedded into the insulating main body 1 corresponding to the terminal hole preset by the tin pin end 12 and effectively extrudes the first grounding terminal or the second grounding terminal, and a better expansion and contraction caulking effect is obtained by utilizing the material characteristics of the conductive rubber plug 41 and the insulating main body 1 and the elasticity of the elastic arm 412, so that the assembly is convenient and the loosening and loosening are not easy to occur. In this embodiment, the elastic arm 412 is further provided with a contact bump 413, and the contact bump 413 is pressed against and connected to the first ground terminal or the second ground terminal, so as to further increase the stability of the conductive connection.

Referring to fig. 1 to 9, in the present embodiment, the conductive series connection member 42 is preferably a metal sheet, which is simple in structure, convenient to manufacture, and also beneficial to injection molding connection with the conductive rubber plug 41. As shown in fig. 7, 8 and 9, in this embodiment, the conductive series connection member 42 is divided into two independent or connected left and right metal sheets, the two metal sheets match with the inner side walls of the slots, and the conductive rubber plugs are arranged on the left and right metal sheets at intervals to match with the first ground terminal or the second ground terminal. The conductive series connection piece 42 plays a role in connecting and conducting different conductive rubber plugs 41, and increases the integrity and strength of the grounding assembly, thereby facilitating subsequent assembly.

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 conductive plug is connected to the conductive series connection member by injection molding, the conductive plug has a body and an elastic arm protruding from one side of the body to the first ground terminal or the second ground terminal, and the elastic arm is connected to the first ground terminal or the second ground terminal by pressing.

3. An electrical connector as claimed in claim 1 or 2 wherein the conductive series is sheet metal.

4. The electrical connector of claim 3, wherein the conductive series member is divided into two separate or connected left and right metal pieces, the two metal pieces are matched with the opposite inner side walls of the slot, and the conductive rubber plugs are arranged on the left and right metal pieces at intervals to be matched with the first grounding terminal or the second grounding terminal.