CN211428490U

CN211428490U - Electrical connector

Info

Publication number: CN211428490U
Application number: CN201922489826.XU
Authority: CN
Inventors: 王瑞勤; 张衍智
Original assignee: Fu Ding Precision Industry Zhengzhou Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Fu Ding Precision Industry Zhengzhou Co Ltd; Hongteng Precision Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-04
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an electric connector, it includes a plurality of terminal groups of casing, fixing in the casing, every terminal group includes signal terminal, the first shielding piece of shielding signal terminal and the second shielding piece of shielding signal terminal, first shielding piece shields on a face at least signal terminal, the second shielding piece shields on the another side at least signal terminal, every terminal group electric connection between first shielding piece and the second shielding piece, one of them terminal group first shielding piece and adjacent terminal group second shielding piece electric connection, the utility model discloses electric connection simple structure is and shield effectually.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector with a ground shield.

[ background of the invention ]

Please refer to chinese patent No. CN104718666B issued on 21/08/2013, which discloses an electrical connector including a housing and a plurality of terminal sets held in the housing, wherein each terminal set includes a signal terminal and a shielding plate for shielding the signal terminal, but the shielding plates are not electrically connected to each other, and crosstalk is likely to occur during signal transmission.

[ Utility model ] content

An object of the present invention is to provide an electrical connector, which is simple in manufacturing process and good in shielding effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector comprises a shell and a plurality of terminal groups fixed in the shell, wherein each terminal group comprises a signal terminal, a first shielding sheet for shielding the signal terminal and a second shielding sheet for shielding the signal terminal, the first shielding sheet shields the signal terminal on at least one surface, the second shielding sheet shields the signal terminal on at least the other surface, and each terminal group is electrically connected between the first shielding sheet and the second shielding sheet, wherein one of the first shielding sheet of the terminal group is electrically connected with the second shielding sheet of the adjacent terminal group.

Compared with the prior art, the utility model has the advantages of: the utility model discloses electric connector through with electric connection between first shield piece and the second shield piece to adjacent terminal group first shield piece with electric connection between the second shield piece forms a big ground return circuit, thereby the effectual crosstalk problem that reduces in the return circuit.

[ description of the drawings ]

Fig. 1 is a perspective view of the electric connector of the present invention.

Fig. 2 is a perspective view of the electrical connector shown in fig. 1 in another orientation.

Fig. 3 is a partially exploded view of the electrical connector shown in fig. 1.

Fig. 4 is a partially exploded view in another orientation of the electrical connector shown in fig. 3.

Fig. 5 is a perspective view of a terminal module of the electrical connector shown in fig. 3.

Fig. 6 is a perspective view of the terminal module of the electrical connector shown in fig. 5 in another direction.

Fig. 7 is a partially exploded view of the terminal module shown in fig. 5.

Fig. 8 is a further exploded view of the terminal module shown in fig. 7.

Fig. 9 is an exploded view of the terminal module shown in fig. 8 in another orientation.

Fig. 10 is a cross-sectional view of the electrical connector shown in fig. 1 taken along the direction a-a.

Fig. 11 is a cross-sectional view of the electrical connector of fig. 1 taken along the direction B-B.

Fig. 12 is a cross-sectional view of the electrical connector of fig. 1 taken along the direction C-C.

[ description of main reference symbols ]

Insulating housing 1 of electrical connector 100

Terminal module 2 signal terminal 21

First shield plate 30 second shield plate 50

Bottom wall 11 side wall 12

The receiving space 13 is a groove 120

Through-slot 110 differential signal terminal pair 22

Contact portion 25 mounting portion 26

Contact foot 261 of main body portion 27

Main wall 31 side wall 32

Main wall 51 side wall 52

Extension arm 521 mount 60

Mounting groove 615 holding part 61

Extension 63 mounting block 611

First side 201 of bump 613

Second side 202 terminal set 20

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

[ detailed description ] embodiments

Referring to fig. 1 to 12, an electrical connector 100 of the present invention is configured to be mounted on a circuit board (not shown) and be capable of cooperating with a mating connector (not shown), where the electrical connector 100 includes an insulating housing 1 and a plurality of terminal modules 2 fixed on the insulating housing 1 in a row, each terminal module 2 includes a plurality of terminal sets 20 arranged in a row, each terminal set 20 includes a signal terminal 21, a first shielding plate 30 for shielding the signal terminal 21, and a second shielding plate 50 for cooperating with the first shielding plate 30 to shield the signal terminal 21. For convenience of understanding, the side of the electrical connector 100 mounted on the circuit board is defined as a mounting side or lower side 3, and the side opposite to the mounting side is defined as a mating side or upper side 4 in the present embodiment.

The insulating housing 1 includes a bottom wall 11 and a pair of side walls 12 extending upward from the bottom wall 11 and arranged in parallel at intervals, and the bottom wall 11 and the pair of side walls 12 form an accommodating space 13. Grooves 120 are respectively formed in two side walls 12 of the insulating housing 1, and the grooves 120 are used for guiding the terminal module 2 to be matched with the insulating housing 1. The bottom wall 11 is provided with a plurality of through grooves 110 penetrating through the bottom wall 11.

Each terminal set 20 includes two signal terminals 21, the signal terminals 21 are provided in the form of differential signal terminal pairs 22 for transmitting a pair of differential signals, the signal terminals 21 include contact portions 25 extending into the receiving space 13 to mate with a mating connector, mounting portions 26 for mounting to a circuit board, and main body portions 27 connecting the contact portions 25 and the mounting portions 26. The mounting portion 26 is provided with a contact pin 261 in the form of a fish eye, and the contact pin 261 extends out of the bottom wall 11 of the first insulating housing 1 to be electrically connected with the circuit board.

The first shielding plate 30 includes a main wall 31 and a pair of side walls 32 extending from two ends of the main wall 31 along the same side, the main wall 31 and the pair of side walls 32 together enclose a U-shaped shielding space, and the first shielding plate 30 includes a mounting pin 321 for mounting on a circuit board. The mounting legs 321 include two extending from two corresponding sidewalls 32. The second shielding plate 50 includes a main wall 51 and a pair of side walls 52 extending from two ends of the main wall 51 along the same side, and the main wall 51 and the pair of side walls 52 together enclose a U-shaped shielding space. The first shield 30 of the same terminal set 20 is mated with the second shield 50 along one side of the U-shaped opening to form a pair of differential signal terminals 22 that are completely circumferentially enclosed. The inner sides of the two side walls 32 of the first shielding plate 30 and the outer sides of the two side walls 52 of the second shielding plate 50 are in contact fit and electrically connected with each other. The side wall 52 of the second shielding plate 50 of each terminal set 20 is provided with an extension arm 521, and the extension arm 521 extends from the lower side edge of the side wall 52 and contacts and is electrically connected with the outer side of the adjacent side wall 52 of the first shielding plate 30 of the adjacent terminal set 20. The extension arm 521 may be formed by integrally stamping and bending the second shielding plate 50. Of course, the extension arm 521 may be formed by welding the second shielding plate 50 separately from the second shielding plate 50 instead of being integrally stamped with the second shielding plate 50.

The terminal module 2 further includes a fixing member 60, all the differential signal terminal pairs 22 in the same terminal module 2 are sequentially and transversely arranged, each of the first shielding plates 30 is also sequentially and transversely disposed and shields the corresponding differential signal terminal pair 22, and all the differential signal terminal pairs 22 and all the first shielding plates 30 are integrally formed on the fixing member 60. The terminal module 2 includes a first side 201 and a second side 202 in the column direction. Each fixing member 60 is mounted on the holding portion 61 of the insulating housing 1 and a plurality of extending portions 63 extending from the upper side of the holding portion 61 into the receiving space 13, two sides of the holding portion in the transverse direction are respectively provided with an outwardly extending mounting block 611, the mounting blocks 611 are mounted in the through slots 110 on the bottom wall of the insulating housing 1 along the grooves 120, each mounting block 611 is provided with an outwardly protruding positioning protrusion 613, and the positioning protrusions 613 are used for limiting the fixing member 60 to be mounted in place on the insulating housing 1. Each of the extensions 63 holds one of the differential signal terminal pairs 22, respectively. The main body of each signal terminal 21 is completely molded and wrapped in the holding portion 61 of the fixing member 60, one wide side and two narrow sides of the contact portion 25 are molded and wrapped in the extending portion 63 of the fixing member 60, and the other wide side is exposed from the first side 201. Part of the main wall 31 of each first shielding plate 30 is completely molded and wrapped in the fixing member 60, and part of the main wall extends out of the fixing member 60 from the upper side of the fixing member 60. Mounting grooves 615 are formed in the fixing members on both sides of each differential signal terminal pair 22, and the outer sides of the two side walls 32 of the first shielding plate 30 are molded in the fixing members 60, and the inner sides are exposed from the corresponding mounting grooves 615. The two side walls 52 of the second shielding plate 50 are respectively received in the corresponding mounting grooves 615, and the outer sides of the two side walls 52 of the second shielding plate 50 are in contact fit with and electrically connected to the inner sides of the corresponding side walls 52 of the first shielding plate 30. In this embodiment, each of the terminal modules 2 includes four differential signal terminal pairs 22 and four first shielding plates 30 and four second shielding plates 50 for shielding the differential signal terminal pairs 22, the fixing member 60 fixes the four differential signal terminal pairs 22 and the corresponding four first shielding plates 30 as a whole, and then assembles the four differential signal terminal pairs and the corresponding four first shielding plates to the insulating housing 1, and the second shielding plates 50 are assembled and fixed in the fixing member 60 from the lower side to the upper side.

The utility model discloses in the electric connector 100, every the first shield piece 30 and the second shield piece 50 of every terminal group 20 of terminal module 2 mutually support and surround a pair ofly from circumference completely signal terminal 21 to be provided with the extension arm 521 that is connected with the first shield piece 30 of adjacent terminal group 20 on the second shield piece 50, connect other first shield piece 30 and second shield piece 50 in the return circuit in proper order, form bigger connecing in the return circuit, thereby solve the crosstalk problem in the circuit, earlier fix into a whole through all signal terminal 21 and all first shield pieces 30 in the shaping technology with the same line when assembling electric connector 100 simultaneously, assemble again and fix in the diapire 11 on insulating housing 1, then assemble second shield piece 50 again. The number of the moulds is small, the number of the components is small, the assembly is simple, and the cost is low.

The above is only an embodiment of the present invention, not all or only one embodiment, and any equivalent changes that the technical solution of the present invention takes are covered by the claims of the present invention through reading the present invention.

Claims

1. An electrical connector comprising a housing, a plurality of terminal groups held in the housing, each of the terminal groups including a signal terminal, a first shield plate for shielding the signal terminal, and a second shield plate for shielding the signal terminal, the first shield plate shielding the signal terminal on at least one side, the second shield plate shielding the signal terminal on at least another side, characterized in that: the first shielding sheet and the second shielding sheet of each terminal group are electrically connected, and the first shielding sheet of one terminal group is electrically connected with the second shielding sheet of the adjacent terminal group.

2. The electrical connector of claim 1, wherein: the first shielding sheet and the second shielding sheet both comprise a main wall and a pair of side walls extending from two sides of the main wall.

3. The electrical connector of claim 2, wherein: the first shield piece and the second shield piece of each of the terminal groups in combination completely surround the signal terminal in the circumferential direction.

4. The electrical connector of claim 3, wherein: the inner sides of the two side walls of the first shielding sheet of each terminal group are electrically connected with the outer sides of the two side walls of the second shielding sheet.

5. The electrical connector of claim 4, wherein: the second shielding sheet comprises at least one extension arm, and the extension arm is electrically connected with the first shielding sheet of the adjacent terminal group.

6. The electrical connector of claim 5, wherein: the extension arm and the second shielding sheet are integrally formed by punching and then bent.

7. The electrical connector of claim 6, wherein: the extension arm is arranged on the side wall of the second shielding sheet, and the extension arm is in contact with the outer side of the side wall of the adjacent side of the first shielding sheet of the adjacent terminal group.

8. The electrical connector of claim 3, wherein: the signal terminal and the first shielding sheet are integrally formed on the fixing piece, and the signal terminal and the first shielding sheet are integrally formed on the fixing piece.

9. The electrical connector of claim 8, wherein: each terminal group comprises two signal terminals to form a differential signal terminal pair for transmitting a pair of differential signals, mounting grooves are formed in the fixing pieces on two sides of each differential signal terminal pair, and two side walls of the second shielding sheet are respectively accommodated in the corresponding mounting grooves.

10. The electrical connector of claim 9, wherein: each second shielding sheet is provided with at least one extension arm, the extension arm is contacted with the side wall adjacent to the first shielding sheet of the adjacent terminal group, and the adjacent first shielding sheet and the adjacent second shielding sheet in the same row are sequentially connected.