CN212412347U - Electrical connector - Google Patents
Electrical connector Download PDFInfo
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- CN212412347U CN212412347U CN202020272859.9U CN202020272859U CN212412347U CN 212412347 U CN212412347 U CN 212412347U CN 202020272859 U CN202020272859 U CN 202020272859U CN 212412347 U CN212412347 U CN 212412347U
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- right direction
- contact
- differential signal
- electrical connector
- elastic arm
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Abstract
The utility model discloses an electric connector for lead with a butt joint spare, the butt joint spare has first lead and connects portion and second lead and connect portion, include: an insulating body; the plurality of conductive terminals are arranged on the insulating body and comprise two differential signal pairs and a grounding terminal positioned between the two differential signal pairs, each differential signal pair comprises two signal terminals, each signal terminal comprises a base part and an elastic arm which extends upwards from the base part to form, the elastic arm is provided with a first contact part used for being abutted against the first guide connection part, each grounding terminal comprises a main body part, an elastic arm which extends upwards from the main body part, an extension part which extends from the elastic arm to form and a tail part which extends from the extension part, the extension part is provided with two second contact parts and a connection part which is connected between the two second contact parts, the two second contact parts are used for being abutted against the second guide connection part, and the width of the extension part is greater than the sum of the widths of the two first contact parts of each differential signal pair so as to enhance the EMI prevention effect of the differential signal pair.
Description
[ 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 good EMI protection effect.
[ background of the invention ]
The PCI-E connector is widely applied to equipment such as computers and the like, and is used for inserting an electronic card to increase the storage capacity. With the rapid development of the electronics industry, computers have placed higher demands on the high frequency performance of PCI-E connectors.
A conventional PCI-E connector generally includes a housing and a plurality of conductive terminals disposed on the housing. The conductive terminals comprise two differential signal pairs arranged in the left-right direction and a ground terminal positioned between the two differential signal pairs. Each of the differential signal pairs includes two signal terminals for transmitting differential signals. Each signal terminal comprises a first base part fixed on the insulating body and a first elastic arm formed by bending and extending upwards from the first base part, and the first elastic arm is provided with a first contact part used for abutting against an electronic card. Each grounding terminal comprises a second base part fixed on the insulating body and a second elastic arm formed by bending and extending upwards from the second base part, the second elastic arm is provided with a second contact part used for abutting against an electronic card, the structure of the second elastic arm is the same as that of the first elastic arm, namely the width of each second contact part in the left-right direction is equal to that of each first contact part in the left-right direction.
In the PCI-E connector structure, since the sum of the widths of the second contact portions of the two ground terminals in the left-right direction is equal to the sum of the widths of the two first contact portions of each differential signal pair in the left-right direction, when the PCI-E connector and the electronic card perform high-frequency signal transmission, the return paths of the two ground terminals are narrow, so that the differential signal transmission loss of the differential signal pairs is large, and the PCI-E connector has a problem of poor EMI prevention effect due to poor common mode performance.
Therefore, there is a need for a new electrical connector to overcome the above problems.
[ Utility model ] content
An object of the utility model is to provide an prevent effectual electric connector of EMI.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electrical connector for electrically connecting with a mating member having a plurality of first conductive portions and at least one second conductive portion, comprising: an insulating body; a plurality of conductive terminals disposed on the insulative housing, the plurality of conductive terminals including two differential signal pairs arranged in a left-right direction and a ground terminal disposed between the two differential signal pairs, each differential signal pair including two signal terminals, each signal terminal including a base portion disposed on the insulative housing and an elastic arm extending upward from the base portion, the elastic arm having a first contact portion for abutting one of the first conductive portions, each ground terminal including a main body portion disposed on the insulative housing, an elastic arm extending upward from the main body portion, an extension portion extending from the elastic arm, and a tail portion extending from the extension portion, the extension portion having two second contact portions spaced apart from each other in the left-right direction and a connection portion connected between the two second contact portions, the two second contact portions are used for abutting against at least one second conduction portion, and the width of the extension portion in the left-right direction is larger than the sum of the widths of the two first contact portions of each differential signal pair in the left-right direction.
Furthermore, the insulating body comprises two opposite side walls in the front and back direction and a slot between the two side walls, the slot is used for inserting the butt joint piece downwards, the conductive terminals are distributed on the two side walls on the front side and the back side of the slot, the conductive terminals on the side walls are arranged in each of two differential signal pairs arranged in the left and right direction and one grounding terminal arranged between the two differential signal pairs, and the second contact part of the grounding terminal positioned on the same side of the slot is formed by protruding towards the other side of the slot relative to the corresponding connecting part.
Further, the thickness of the second contact portion is equal to the thickness of the connection portion.
Further, the extending portion has a first edge and a second edge opposite to each other in the left-right direction, wherein one of the second contact portions connects the first edge in the left-right direction, and the other of the second contact portions connects the second edge in the left-right direction.
Furthermore, the extending part is correspondingly recessed at a position deviating from each second contact part to form a notch, and the two notches are connected to the left side and the right side of the connecting part.
Further, the width of the connecting portion in the left-right direction is larger than the width of each of the second contact portions in the left-right direction.
Further, a pitch of the two second contact portions of the ground terminal in the left-right direction is equal to a pitch of one of the second contact portions and the first contact portion adjacent thereto in the left-right direction.
Further, the pitch of the two second contact portions of the ground terminal in the left-right direction is equal to the pitch of the two first contact portions of the differential signal pair in the left-right direction.
Further, the butt joint member has a plurality of the second conductive connection portions, and two of the second contact portions of the ground terminal are configured to abut against two of the second conductive connection portions adjacent to each other on the left and right in a one-to-one correspondence manner.
Furthermore, the elastic arm is provided with a through groove which divides the elastic arm into two branches.
Compared with the prior art, the utility model discloses electric connector has following beneficial effect:
the utility model discloses electric connector will two between the differential signal pair ground terminal unites two into one design to be one ground terminal, ground terminal the extension has two the second contact site, and adds connecting portion connect two the second contact site, thereby in order to increase the ascending width of extension about, thereby makes the ascending width of extension about is greater than each two of differential signal pair the sum of the ascending width about of first contact site is controlled, widens from this ground terminal's backward flow route, thereby reduces the signal loss of differential signal pair, and then improves electric connector's common mode performance makes electric connector's anti-EMI is effectual.
[ description of the drawings ]
Fig. 1 is a perspective view of the electric connector of the present invention before being plugged with the mating member;
fig. 2 is a perspective view of two differential signal pairs and one ground terminal of fig. 1;
fig. 3 is a perspective view of two differential signal pairs and one ground terminal of fig. 2 rotated 180 ° horizontally;
fig. 4 is a rear view of two differential signal pairs and one ground terminal of fig. 2;
FIG. 5 is a top view of the electrical connector of FIG. 1;
FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;
fig. 7 is a schematic view of the electrical connector of fig. 6 after being plugged with the mating member.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
Grounding terminal G of first contact part 221 of elastic arm 22 of base 21
Through groove 241 branch 242 of main body 23 spring arm 24
First lead-in part 3 second lead-in part 4
[ detailed description ] embodiments
For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.
The utility model discloses forward direction in the forward-backward direction is represented to the positive direction of definition X axle, and the positive direction of Y axle represents left direction in the left-right direction, and ascending direction in the upper and lower direction is represented to the positive direction of Z axle.
As shown in fig. 1 and 7, an electrical connector 100 of the present invention is provided for downward insertion of a mating member 200. The electrical connector 100 is a PCI-E connector, and includes an insulative housing 1 and a plurality of conductive terminals 2 disposed on the insulative housing 1. The docking member 200 is an electronic card and includes a plurality of first connecting portions 3 and a plurality of second connecting portions 4, wherein the first connecting portions 3 are used for transmitting signals, and the second connecting portions 4 are used for connecting with a ground path. Of course, in other embodiments, the electrical connector 100 and the docking member 200 may be other types of connection devices capable of achieving electrical connection.
As shown in fig. 1 and 7, the insulating body 1 is made of an insulating material by injection molding. The insulating body 1 includes two side walls 11 opposite to each other in the front-rear direction and a slot 12 located between the two side walls 11. The slot 12 penetrates the insulating body 1 upwards and does not penetrate the insulating body 1 downwards, and the slot 12 is used for allowing the docking piece 200 to be inserted downwards.
As shown in fig. 1 and 7, each of the side walls 11 has a plurality of receiving holes 111, the receiving holes 111 of the two side walls 11 correspondingly receive the plurality of conductive terminals 2, the receiving holes 111 vertically penetrate through the corresponding side walls 11, and the receiving holes 111 and the slots 12 are communicated with each other in the front-rear direction.
As shown in fig. 1 and 5, the conductive terminal 2 is formed by stamping a metal plate. The conductive terminals 2 are distributed on the two side walls 11 on the front and rear sides of the slot 12, and the conductive terminals 2 disposed on each side wall 11 include two differential signal pairs SS arranged in the left-right direction and a ground terminal G located between the two differential signal pairs SS. Each of the differential signal pairs SS is composed of two signal terminals S and is used for transmitting a differential signal.
As shown in fig. 1, 3 and 7, each of the signal terminals S includes a base portion 21 retained in the corresponding receiving hole 111 and an elastic arm 22 bent and extended upward from an upper end of the base portion 21. The elastic arm 22 has a first contact portion 221, and the first contact portion 221 is used for abutting one of the first guiding portions 3.
As shown in fig. 1, 3 and 6, each of the ground terminals G includes a main body 23 fixed to the corresponding receiving hole 111, a resilient arm 24 formed by bending and extending upward from an upper end of the main body 23, an extending portion 25 formed by bending and extending upward from an upper end of the resilient arm 24, and a tail portion 26 formed by bending and extending upward from an upper end of the extending portion 25.
As shown in fig. 2 and 4, the elastic arm 24 is provided with a through slot 241, the through slot 241 divides the corresponding elastic arm 24 into two branches 242, and the two branches 242 are arranged symmetrically with respect to the through slot 241.
As shown in fig. 3 and 4, the extension portion 25 has a first edge 251 and a second edge 252 opposite to each other on the left and right. The extending portion 25 has two second contact portions 253 spaced left and right and a connecting portion 254 connected between the two second contact portions 253. The two second contact portions 253 are disposed in left-right symmetry with respect to the connecting portion 254. One of the second contact portions 253 connects the first edge 251 in the left-right direction, and the other second contact portion 253 connects the second edge 252 in the left-right direction. As shown in fig. 1 and 7, two of the second contact portions 253 are configured to abut against two of the second connecting portions 4 adjacent to each other on the left and right in a one-to-one correspondence manner. Of course, in other embodiments, the two second connecting portions 4 adjacent to each other on the left and right of the docking piece 200 may also be integrally connected, and the two second contact portions 253 are used for abutting against the integrally connected second connecting portions 4.
As shown in fig. 5 and 6, the second contact portion 253 of the ground terminal G located on the same side of the slot 12 is formed to protrude toward the other side of the slot 12 with respect to the corresponding connecting portion 254, and the thicknesses of the second contact portion 253 and the connecting portion 254 are equal. As shown in fig. 2 and 3, a recess 255 is correspondingly recessed at a position away from each of the second contact portions 253, and the two recesses 255 are connected to the left and right sides of the connecting portion 254 and are symmetrically arranged with respect to the connecting portion 254.
As shown in fig. 4, the width W of the extending portion 25 in the left-right direction is greater than the sum (i.e., 2W) of the widths of the two first contact portions 221 of each differential signal pair SS in the left-right direction. In the present embodiment, a width W1 of the connecting portion 254 in the left-right direction is greater than a width W2 of each of the second contact portions 253 in the left-right direction, and a width W2 of each of the second contact portions 253 in the left-right direction is greater than a width W of each of the first contact portions 221 in the left-right direction.
As shown in fig. 4, a distance D1 between two second contact portions 253 of the ground terminal G in the left-right direction is equal to a distance D2 between one second contact portion 253 and the adjacent first contact portion 221 in the left-right direction, and is also equal to a distance D3 between two first contact portions 221 in the differential signal pair SS in the left-right direction.
As shown in fig. 1 and 6, when the electrical connector 100 is assembled, the plurality of conductive terminals 2 are assembled in the insulating housing 1 from bottom to top until the base portion 21 and the body portion 23 are respectively retained in the corresponding receiving holes 111, and the first contact portion 221 and the second contact portion 253 respectively enter the slot 12.
As shown in fig. 1 and 7, when the electrical connector 100 is used, the docking member 200 is inserted into the slot 12 downward until the lower end of the docking member 200 abuts against the insulating body 1 downward. At this time, the first contact portion 221 of each signal terminal S abuts against the corresponding first connecting portion 3, and the two second contact portions 253 of each ground terminal G abut against the corresponding two second connecting portions 4, so that the electrical connection between the electrical connector 100 and the mating component 200 is realized.
To sum up, the utility model discloses electric connector has following beneficial effect:
(1) the utility model discloses electric connector 100 will two between the differential signal pair SS ground terminal G unites two into one and designs into one ground terminal G, ground terminal G extension 25 has two second contact 253, and adds connecting portion 254 connects two second contact 253, thereby in order to increase extension 25 width W in the left and right sides orientation makes extension 25 width W in the left and right sides orientation is greater than each differential signal is to two of SS the sum (2W promptly) of the width of first contact 221 in the left and right sides orientation widens ground terminal G's backward flow route thereby reduces the signal loss of differential signal pair SS, and then improves electric connector 100's common mode performance makes electric connector 100's EMI preventing is effectual.
(2) The second contact portion 253 of the ground terminal G located on the same side of the slot 12 is formed to protrude toward the other side of the slot 12 with respect to the corresponding connecting portion 254, and the thicknesses of the second contact portion 253 and the connecting portion 254 are equal, so that the second contact portion 253 and the connecting portion 254 can be manufactured by using metal plates having the same thickness, thereby saving the material of the ground terminal G.
(3) The distance D1 between the two second contact portions 253 of the ground terminal G in the left-right direction is equal to the distance D2 between one second contact portion 253 and the adjacent first contact portion 221 in the left-right direction, and is also equal to the distance D3 between the two first contact portions 221 of the differential signal pair SS in the left-right direction, so that the electrical connector 100 can be fitted with the docking piece 200 of the existing specification, and particularly, the PCI-E connector of the present embodiment can be fitted with an electronic card of the existing specification, so as to meet the requirement of users for the versatility of the product.
(4) The through groove 241 divides the corresponding elastic arm 24 into two branches 242, so that the elastic arm 24 has good flexibility and is easy to deform, thereby preventing fatigue of the elastic arm 24 due to elastic deformation.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.
Claims (10)
1. An electrical connector for electrically connecting with a mating member, the mating member having a plurality of first conductive portions and at least one second conductive portion, comprising:
an insulating body;
a plurality of conductive terminals disposed on the insulative housing, the plurality of conductive terminals including two differential signal pairs arranged in a left-right direction and a ground terminal disposed between the two differential signal pairs, each differential signal pair including two signal terminals, each signal terminal including a base portion disposed on the insulative housing and an elastic arm extending upward from the base portion, the elastic arm having a first contact portion for abutting one of the first conductive portions, each ground terminal including a main body portion disposed on the insulative housing, an elastic arm extending upward from the main body portion, an extension portion extending from the elastic arm, and a tail portion extending from the extension portion, the extension portion having two second contact portions spaced apart from each other in the left-right direction and a connection portion connected between the two second contact portions, the two second contact portions are used for abutting against at least one second conduction portion, and the width of the extension portion in the left-right direction is larger than the sum of the widths of the two first contact portions of each differential signal pair in the left-right direction.
2. The electrical connector of claim 1, wherein: the insulating body comprises two opposite side walls and a slot, the slot is arranged between the two side walls, the slot is used for inserting the butt joint piece downwards, the conductive terminals are distributed on the two side walls on the front side and the rear side of the slot, each conductive terminal is arranged on the side wall and comprises two differential signal pairs and one grounding terminal between the two differential signal pairs, the second contact part of the grounding terminal on the same side of the slot is formed by protruding arrangement of the other side of the slot relative to the corresponding connecting part and facing the slot.
3. The electrical connector of claim 2, wherein: the thickness of the second contact portion is equal to the thickness of the connection portion.
4. The electrical connector of claim 1, wherein: the extension part is provided with a first edge and a second edge which are opposite to each other in the left-right direction, wherein one second contact part is connected with the first edge in the left-right direction, and the other second contact part is connected with the second edge in the left-right direction.
5. The electrical connector of claim 1, wherein: the extending part is correspondingly concavely arranged at a position deviating from each second contact part to form a notch, and the two notches are connected to the left side and the right side of the connecting part.
6. The electrical connector of claim 1, wherein: the width of the connecting portion in the left-right direction is larger than the width of each second contact portion in the left-right direction.
7. The electrical connector of claim 1, wherein: the distance between the two second contact parts of the grounding terminal in the left-right direction is equal to the distance between one of the second contact parts and the adjacent first contact part in the left-right direction.
8. The electrical connector of claim 1, wherein: the pitch of the two second contact portions of the ground terminal in the left-right direction is equal to the pitch of the two first contact portions of the differential signal pair in the left-right direction.
9. The electrical connector of claim 1, wherein: the butt joint piece is provided with a plurality of second conducting parts, and the two second contact parts of the grounding terminal are used for correspondingly abutting against the two second conducting parts which are adjacent left and right.
10. The electrical connector of claim 1, wherein: the elastic arm is provided with a through groove which divides the elastic arm into two branches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020272859.9U CN212412347U (en) | 2020-03-06 | 2020-03-06 | Electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020272859.9U CN212412347U (en) | 2020-03-06 | 2020-03-06 | Electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212412347U true CN212412347U (en) | 2021-01-26 |
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ID=74378103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020272859.9U Active CN212412347U (en) | 2020-03-06 | 2020-03-06 | Electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212412347U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928548A (en) * | 2021-02-19 | 2021-06-08 | 东莞立讯技术有限公司 | Electrical connector |
| CN114639998A (en) * | 2022-02-18 | 2022-06-17 | 鹤山市得润电子科技有限公司 | Connector, connector module and electronic equipment |
| US11870174B2 (en) | 2021-02-19 | 2024-01-09 | Dongguan Luxshare Technologies Co., Ltd | Electrical connector |
-
2020
- 2020-03-06 CN CN202020272859.9U patent/CN212412347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928548A (en) * | 2021-02-19 | 2021-06-08 | 东莞立讯技术有限公司 | Electrical connector |
| CN112928548B (en) * | 2021-02-19 | 2023-01-20 | 东莞立讯技术有限公司 | Electrical connector |
| US11855391B2 (en) | 2021-02-19 | 2023-12-26 | Dongguan Luxshare Technologies Co., Ltd | High speed electrical connector with reduced crosstalk |
| US11870174B2 (en) | 2021-02-19 | 2024-01-09 | Dongguan Luxshare Technologies Co., Ltd | Electrical connector |
| CN114639998A (en) * | 2022-02-18 | 2022-06-17 | 鹤山市得润电子科技有限公司 | Connector, connector module and electronic equipment |
| CN114639998B (en) * | 2022-02-18 | 2024-02-27 | 鹤山市得润电子科技有限公司 | Connector, connector module and electronic equipment |
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