CN216903602U

CN216903602U - Terminal grounding structure of electric connector

Info

Publication number: CN216903602U
Application number: CN202123125244.7U
Authority: CN
Inventors: 蔡添庆
Original assignee: Dongguan Guangzhou Precision Electronic Co ltd
Current assignee: Dongguan Guangzhou Precision Electronic Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-07-05
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to a terminal grounding structure of an electric connector, which comprises a middle iron sheet, an upper row of terminals and a lower row of terminals which form a relative up-down relationship, wherein the middle iron sheet is positioned between the upper row of terminals and the lower row of terminals; the upper grounding terminal of the upper row of terminals is provided with a first fixing part and a first grounding part and a string pin which protrudes downwards from the first grounding part; the lower grounding terminal of the lower row of terminals is provided with a second fixing part, a second grounding part and a first grounding hole arranged on the second grounding part; the middle iron sheet is provided with a third grounding part and a second grounding hole arranged on the third grounding part, the second grounding hole is opposite to the first grounding hole up and down, the requirement that the serial pins sequentially penetrate and connect from top to bottom is met, and the first grounding part, the second grounding part and the third grounding part are connected together in a conduction mode through the serial pins. The upper grounding terminal, the lower grounding terminal and the middle iron sheet are in short circuit connection, crosstalk is improved, high frequency is met, the structure is simple, manufacturing and assembling are convenient, and the quality of the electric connector is guaranteed.

Description

Terminal grounding structure of electric connector

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a data transmission type-c connector.

Background

With the development of science and technology, various electronic products are developed, and a plurality of corresponding connectors for different electronic products are developed, the USB connector is one of the most widely used and popular connectors in an electrical connector, and most electronic devices are equipped with the USB connector. At present, due to the characteristic of a double-sided pluggable port of the USB TYPE-C connector, unlike the old USB port, power can only be transmitted in a single direction, power transmission of the TYPE-C port is bidirectional, and the USB TYPE-C connector can be widely applied to mobile devices such as smart phones and notebooks and can be used for charging, data transmission and the like.

The new generation of USB TYPE-C connector has smaller size and higher requirements for mechanical performance and electrical performance, and the design of the grounding structure becomes a concern in the industry in order to ensure the reliability of the product for transmitting large current and reduce the mutual crosstalk generated by various conductive terminals in the signal transmission process. However, since the new generation of USB TYPE-C connector has small size, a large number of terminals and limited space, the design of the grounding structure increases the difficulty in assembling and manufacturing the electrical connector, and is very likely to cause defective products, the applicant of the present invention proposes a terminal grounding structure of the electrical connector, which is the present application.

Disclosure of Invention

The utility model aims to provide a terminal grounding structure of an electric connector, which well solves the problems of the prior art and has simple structure and convenient manufacture and assembly.

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

the terminal grounding structure of the electric connector comprises a middle iron sheet, an upper row of terminals and a lower row of terminals which are in relative up-down relation, wherein the middle iron sheet is positioned between the upper row of terminals and the lower row of terminals;

the upper row of terminals is provided with an upper grounding terminal, the upper grounding terminal is provided with a first contact part at the front end, a first welding part at the rear end and a first fixing part positioned between the first contact part and the first welding part, and the first fixing part is provided with a first grounding part and a serial pin which protrudes downwards from the first grounding part;

the lower row of terminals is provided with a lower grounding terminal, the lower grounding terminal is provided with a second contact part at the front end, a second welding part at the rear end and a second fixing part positioned between the second contact part and the second welding part, and the second fixing part is provided with a second grounding part and a first grounding hole arranged on the second grounding part;

the middle iron sheet is provided with a third grounding part and a second grounding hole arranged on the third grounding part, the second grounding hole is opposite to the first grounding hole up and down, the requirement that the serial pins sequentially penetrate and connect from top to bottom is met, and the first grounding part, the second grounding part and the third grounding part are connected together in a conduction mode through the serial pins.

In the above solution, the upper ground terminals are distributed at the extreme positions in the arrangement direction of the upper row of terminals, and the lower ground terminals are distributed at the extreme positions in the arrangement direction of the lower row of terminals; the first grounding part extends horizontally outwards from the side edge of the upper grounding terminal, the second grounding part extends horizontally outwards from the side edge of the lower grounding terminal, the third grounding part extends horizontally outwards from the side edge of the middle iron sheet, at least parts of the first grounding part, the second grounding part and the third grounding part form overlapping alignment, and the length of the horizontal outwards extension of the first grounding part is greater than the length of the horizontal outwards extension of the second grounding part and the third grounding part.

In the above scheme, the serial pins are of a local tearing and bending structure of the first grounding part, and the serial pins are tightly matched with the first grounding hole and the second grounding hole.

In the above solution, the third grounding portion is further provided with an extended grounding support leg, and the grounding support leg is staggered from the first grounding portion and is connected with the outer iron shell on the electrical connector in the same direction.

The upper grounding terminal is provided with the first grounding part and the string pin which protrudes downwards, the lower grounding terminal is provided with the second grounding part and the first grounding hole, and the middle iron sheet is provided with the third grounding part and the second grounding hole, so that the first grounding part, the second grounding part and the third grounding part are connected together in a conduction way by the string pin penetrating through the first grounding hole and the second grounding hole; the realization is gone up ground terminal, ground terminal and well iron sheet short-circuit connection down, the area and the performance of ground terminal have been increased in other words, so set up, can make ground terminal play better shielding effect, the crosstalk that signal terminal produced in the signal transmission in-process has been reduced, crosstalk has been improved, satisfy the high frequency, and simple structure, convenient preparation and equipment, at last row of terminal, arrange terminal and well iron sheet assembling process down, can realize the short-circuit connection automatically, and do not influence the overall arrangement between the terminal, therefore, the commonality is strong, can satisfy customer's demand betterly. The grounding structure is stable and reliable, the quality of the electric connector is guaranteed, the service performance and the service life are improved, and the requirements of a new generation of USB TYPE-C connectors are met.

Description of the drawings:

FIG. 1 is a schematic structural diagram of a preferred 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. 1;

FIG. 4 is an exploded view of the embodiment of FIG. 1;

fig. 5 is a schematic view of the coupling configuration connector 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 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" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Referring to fig. 1, 2, 3 and 4 for a schematic illustration of a preferred embodiment of the present invention, the present invention relates to a terminal grounding structure of an electrical connector, preferably a data transmission type-c connector, which comprises a middle iron sheet 1, and an upper row terminal 2 and a lower row terminal 3 which are in a relative up-down relationship, wherein the middle iron sheet 1 is located between the upper row terminal 2 and the lower row terminal 3. The arrangement of the upper row of terminals 2 and the lower row of terminals 3 meets the positive and negative insertion matching of the external connector, and the use convenience suitable for both positive and negative insertion is realized. The middle iron sheet 1 has a shielding effect, is used for improving the electrical properties of the upper row terminal and the lower row terminal, and meets the use requirements of high frequency and the like. The upper row terminal 2 has an upper grounding terminal 21, the upper grounding terminal 21 has a first contact portion 211 at the front end, a first soldering portion 212 at the rear end, and a first fixing portion 213 located between the first contact portion 211 and the first soldering portion 212, and the first fixing portion 213 is provided with a first grounding portion 214 and a series pin 215 protruding downward from the first grounding portion 214. The lower row terminal 3 has a lower grounding terminal 31, the lower grounding terminal 31 has a second contact portion 311 at the front end, a second soldering portion 312 at the rear end, and a second fixing portion 313 located between the second contact portion 311 and the second soldering portion 312, and the second fixing portion 313 is provided with a second grounding portion 314 and a first grounding hole 315 opened on the second grounding portion 314. The middle iron sheet 1 is provided with a third grounding part 11 and a second grounding hole 12 arranged on the third grounding part 11, the second grounding hole 12 is opposite to the first grounding hole 315 from top to bottom, so that the serial pin 215 sequentially penetrates and connects from top to bottom, and the first grounding part 214, the second grounding part 314 and the third grounding part 11 are connected together in a conduction way through the serial pin 215. The first grounding part, the second grounding part and the third grounding part are connected together in a conducting way by penetrating the first grounding hole and the second grounding hole through the serial pins; the realization is gone up ground terminal, ground terminal and well iron sheet short-circuit connection down, the area and the performance of ground terminal have been increased in other words, so set up, can make ground terminal play better shielding effect, the crosstalk that signal terminal produced in signal transmission process has been reduced, crosstalk has been improved, satisfy the high frequency, and simple structure, convenient preparation and equipment, at last row of terminal, arrange terminal and well iron sheet assembling process down, can realize the short-circuit connection automatically, and do not influence the overall arrangement between the terminal, therefore, the commonality is strong, can satisfy the customer's demand betterly.

Referring to fig. 1, 2, 3 and 4, in the present embodiment, two upper ground terminals 21 are respectively distributed at the extreme positions in the arrangement direction of the upper row terminals 2, so as to form a front-back distribution in the arrangement direction; the lower grounding terminals 31 are distributed at the most edge position of the arrangement direction of the lower row terminals 3, and the number and the positions of the lower grounding terminals 31 correspond to the upper grounding terminals 21. In this embodiment, the side edge of the middle iron sheet 1 is provided with an inward concave notch 14, at least a part of the upper grounding terminal 21 and the lower grounding terminal 31 are overlapped up and down in the direction of the notch 14, and the medium between the upper grounding terminal 21 and the lower grounding terminal 31 at the overlapped position is air, so as to improve the high-frequency performance. The first grounding portion 214 extends horizontally outwards from the side of the upper grounding terminal 21, the second grounding portion 314 extends horizontally outwards from the side of the lower grounding terminal 31, the third grounding portion 11 extends horizontally outwards from the side of the middle iron sheet 1, at least part of the first grounding portion 214, the second grounding portion 314 and the third grounding portion 11 form an overlapping alignment, and the length of the horizontal outward extension of the first grounding portion 214 is greater than the length of the horizontal outward extension of the second grounding portion 314 and the third grounding portion 11. The structure is convenient to manufacture and assemble, and further, the series connection pin 215 is a local tearing and bending structure of the first grounding portion 214, and the series connection pin 215 is tightly matched with the first grounding hole 315 and the second grounding hole 12 to ensure the conduction connection.

Referring to fig. 1, 2, 3, 4 and 5, in the present embodiment, the third grounding portion 11 of the middle iron sheet 1 is further provided with an extended grounding pin 13, the grounding pin 13 is dislocated from the first grounding portion 214 and is connected to the outer iron shell 4 on the electrical connector in the same direction, the structure further improves the grounding connection, and the grounding system is configured by matching with the outer iron shell of the electrical connector, so as to adapt to the functionality of the data transmission type-c connector.

The upper grounding terminal is provided with the first grounding part and the string pin which protrudes downwards, the lower grounding terminal is provided with the second grounding part and the first grounding hole, and the middle iron sheet is provided with the third grounding part and the second grounding hole, so that the first grounding part, the second grounding part and the third grounding part are connected together in a conduction way by the string pin penetrating through the first grounding hole and the second grounding hole; the realization is gone up ground terminal, ground terminal and well iron sheet short-circuit connection down, the area and the performance of ground terminal have been increased in other words, so set up, can make ground terminal play better shielding effect, the crosstalk that signal terminal produced in signal transmission process has been reduced, crosstalk has been improved, satisfy the high frequency, and simple structure, convenient preparation and equipment, at last row of terminal, arrange terminal and well iron sheet assembling process down, can realize the short-circuit connection automatically, and do not influence the overall arrangement between the terminal, therefore, the commonality is strong, can satisfy the customer's demand betterly. The grounding structure is stable and reliable, the quality of the electric connector is guaranteed, the service performance and the service life are improved, and the requirements of a new generation of USB TYPE-C connectors are met.

It is to be understood that the foregoing detailed description of the present invention has been provided only for the purpose of illustrating the technical spirit and features of the present invention, and the present invention is not limited thereto.

Claims

1. The terminal grounding structure of the electric connector is characterized in that: the connector comprises a middle iron sheet (1), an upper row of terminals (2) and a lower row of terminals (3) which are in relative up-down relation, wherein the middle iron sheet (1) is positioned between the upper row of terminals (2) and the lower row of terminals (3);

the upper row terminal (2) is provided with an upper grounding terminal (21), the upper grounding terminal (21) is provided with a first contact part (211) at the front end, a first welding part (212) at the rear end and a first fixing part (213) positioned between the first contact part (211) and the first welding part (212), and the first fixing part (213) is provided with a first grounding part (214) and a serial pin (215) protruding downwards from the first grounding part (214);

the lower row of terminals (3) is provided with a lower grounding terminal (31), the lower grounding terminal (31) is provided with a second contact part (311) at the front end, a second welding part (312) at the rear end and a second fixing part (313) positioned between the second contact part (311) and the second welding part (312), and the second fixing part (313) is provided with a second grounding part (314) and a first grounding hole (315) arranged on the second grounding part (314);

the middle iron sheet (1) is provided with a third grounding part (11) and a second grounding hole (12) formed in the third grounding part (11), the second grounding hole (12) is opposite to the first grounding hole (315) up and down, the series pins (215) are sequentially connected in a penetrating manner from top to bottom, and the first grounding part (214), the second grounding part (314) and the third grounding part (11) are connected together in a conducting manner through the series pins (215).

2. The terminal grounding structure of an electrical connector according to claim 1, wherein: the upper grounding terminals (21) are distributed at the extreme positions in the arrangement direction of the upper row of terminals (2), and the lower grounding terminals (31) are distributed at the extreme positions in the arrangement direction of the lower row of terminals (3); the first grounding part (214) horizontally extends outwards from the side edge of the upper grounding terminal (21), the second grounding part (314) horizontally extends outwards from the side edge of the lower grounding terminal (31), the third grounding part (11) horizontally extends outwards from the side edge of the middle iron sheet (1), at least parts of the first grounding part (214), the second grounding part (314) and the third grounding part (11) form an overlapping alignment, and the length of the first grounding part (214) horizontally extending outwards is greater than the length of the second grounding part (314) and the third grounding part (11) horizontally extending outwards.

3. The terminal ground structure of an electrical connector according to claim 1, wherein: the string pin (215) is a local tearing and bending structure of the first grounding part (214), and the string pin (215) is tightly matched with the first grounding hole (315) and the second grounding hole (12).

4. The terminal ground structure of an electrical connector according to claim 2, wherein: and the third grounding part (11) is also provided with an outward extending grounding support leg (13), and the grounding support leg (13) is staggered with the first grounding part (214) and is connected with an outer iron shell on the electric connector in the same direction.