CN210224355U

CN210224355U - Socket connector

Info

Publication number: CN210224355U
Application number: CN201921267868.2U
Authority: CN
Inventors: Zuyang Wu; 吴祖阳; Jingxiang Zhang; 张景翔; Weizhou Lin; 林威州
Original assignee: Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-03-31
Anticipated expiration: 2029-08-07

Abstract

A socket connector comprises a socket body, a plurality of socket terminals arranged on the socket body and a socket grounding sheet; each socket terminal is provided with an installation part extending out of the socket body, an elastic butt joint part opposite to the installation part and a connecting part for connecting the installation part and the butt joint part; the socket terminal comprises a plurality of pairs of differential signal terminals and a plurality of grounding terminals which are arranged in a row, the grounding terminals are arranged between two adjacent pairs of differential signal terminals at intervals, a plurality of first elastic arms and a plurality of second elastic arms are integrally arranged on the socket grounding piece, and the first elastic arms and the second elastic arms are respectively elastically abutted to butt joint portions and connecting portions of the corresponding grounding terminals, so that signal crosstalk is improved, and high-frequency transmission performance is improved.

Description

Socket connector

[ technical field ] A method for producing a semiconductor device

The utility model relates to a socket connector especially relates to a socket connector for high frequency transmission.

[ background of the invention ]

The related prior art refers to a high frequency connector with a transmission bandwidth of 6Gbps disclosed in U.S. patent publication No. US20090221165, which includes an insulating body and a plurality of conductive terminals held in the insulating body, wherein the conductive terminals include ground terminals and differential signal terminals arranged in pairs, and a ground strip is electrically connected to each ground terminal to reduce signal crosstalk and improve the high frequency performance of the connector.

The PCI-SIG association has published that the PCI e4.0 specification signal transmission rate has reached 16GT/s and the transmission bandwidth has reached 64Gbps, while the PCI 5.0 specification signal transmission rate published by the PCI-SIG association and being developed at present has further doubled up to 32GT/s and the transmission bandwidth thereof will reach even 128Gbps, and in the field of such rapidly developed high-frequency connectors, the ground patch in the prior art has not been able to satisfy its high-frequency performance.

Therefore, there is a need to provide an improved socket connector to solve the above problems.

[ Utility model ] content

A primary object of the present invention is to provide a socket connector with good high frequency performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a socket connector comprises a socket body, a plurality of socket terminals arranged on the socket body and a socket grounding sheet; each socket terminal is provided with an installation part extending out of the socket body, an elastic butt joint part opposite to the installation part and a connecting part for connecting the installation part and the butt joint part; the socket terminal comprises a plurality of pairs of differential signal terminals and a plurality of grounding terminals which are arranged in a row, the grounding terminals are arranged between two adjacent pairs of differential signal terminals at intervals, a plurality of first elastic arms and a plurality of second elastic arms are integrally arranged on the socket grounding piece, and the first elastic arms and the second elastic arms are respectively elastically abutted against the abutting parts and the connecting parts of the corresponding grounding terminals.

Further, the socket terminal is assembled to the socket body from front to back, the socket grounding piece is assembled to the socket body from back to front, the socket body is provided with a longitudinal slot which is concavely arranged from the back end to front and side walls which are positioned on two sides of the slot, the side walls are provided with a plurality of channels communicated with the slot, the elastic butt joint portion is provided with an elastic portion which is contained in the corresponding channel and an arc-shaped portion which protrudes into the slot, and the first elastic arm is contained in the corresponding channel and abuts against the corresponding elastic portion.

Furthermore, the side wall is provided with a slot which is recessed forwards from the rear end and communicated with the channel, the socket grounding piece is provided with a main body part accommodated in the slot, the first elastic arm is integrally punched upwards from the main body part and extends backwards, and the second elastic arm is integrally extended forwards from the front end of the main body part.

Furthermore, the elastic part extends backwards and slantwise towards the direction of the slot, and the height of the first elastic arm which is propped against the corresponding elastic part and protrudes along the up-down direction is higher than that of the second elastic arm.

Furthermore, the first elastic arm is arranged in an L shape, and the rear end of the main body part is provided with a plurality of openings for accommodating arc-shaped parts of the corresponding differential signal terminal and the corresponding grounding terminal.

Furthermore, the socket connector further comprises a module assembled on the socket body, the connecting parts of the differential signal terminals and the grounding terminals are embedded and molded on the module, the module is provided with a plurality of grooves exposed corresponding to the connecting parts of the grounding terminals, and the second elastic arms penetrate through the corresponding grooves and then abut against the corresponding connecting parts.

In order to achieve the purpose, the invention also adopts the following technical scheme: a socket connector comprises a socket body, a plurality of socket terminals arranged on the socket body and a socket grounding sheet assembled on the socket body; the socket body comprises two side walls extending along the longitudinal direction and a longitudinal slot positioned between the two side walls; the socket terminal comprises a plurality of pairs of differential signal terminals and a plurality of ground terminals, the pairs of differential signal terminals and the ground terminals are arranged below the slot in a row and protrude into the slot, the ground terminals are arranged between two adjacent pairs of differential signal terminals at intervals, the socket connector is set to support a signal transmission rate of more than 32GT/s, and the socket ground sheet is integrally provided with at least two elastic arms corresponding to each ground terminal to be connected with different positions of the corresponding ground terminal.

Furthermore, each socket terminal is provided with a mounting part extending out of the socket body, an elastic butt joint part protruding into the slot and a connecting part connecting the mounting part and the butt joint part; the two elastic arms respectively and elastically abut against the butt joint part and the connecting part of the corresponding grounding terminal upwards, and the elastic arm abutting against the butt joint part is higher than the elastic arm abutting against the connecting part.

Furthermore, a plurality of channels communicated with the slot and a slot which is concavely arranged forwards from the rear end and communicated with the channels are arranged below the slot on the side wall, the socket grounding piece is assembled into the slot from the back to the front, the two elastic arms extend backwards along the front and back direction to form, and the elastic arms abutted against the abutting part are arranged in an L shape.

Furthermore, the socket grounding plate extends backwards to exceed the elastic butting part, and the rear end of the grounding plate is provided with a plurality of openings for accommodating the elastic butting parts of the corresponding differential signal terminals and the grounding terminals.

Compared with the prior art, the utility model discloses socket grounding piece supports respectively through two elastic arms of first elastic arm and second elastic arm and holds on the butt joint portion and the connecting portion of ground terminal, and then has improved signal crosstalk, has improved high frequency transmission's performance, and the impedance that realizes socket terminal simultaneously is continuous, avoids appearing the phenomenon of impedance sudden change in the circuit.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of the plug connector and the receptacle connector of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is an exploded view from another angle of fig. 3.

Fig. 5 is a partially exploded view of the plug connector.

Fig. 6 is a partially exploded view from another angle of fig. 5.

Figure 7 is an exploded view of the plug terminal and the plug grounding plate.

Fig. 8 is a partially exploded view of the receptacle connector.

Fig. 9 is a partially exploded view from another angle of fig. 8.

Figure 10 is an exploded view of the receptacle terminal and receptacle grounding plate.

Fig. 11 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 12 is a cross-sectional view taken along line B-B of fig. 1.

[ description of main element symbols ]

Plug connector 100 plug body 1

Tongue 12 of base 11

Upper surface 121 tab 120

Lower surface 122 terminal groove 123

Bump 124 plug terminal 2

Contact portion 21 holding portion 22

Narrowing 24 of tail 23

Step part 241 first terminal group 2a

Second terminal group 2b third terminal group 2c

The fourth terminal group 2d differential signal terminals S1, S2, S4

Ground terminals G1, G2 power supply terminals P1, P4

Plug grounding piece 3 beam part 31

Bridge 32 first connection 33

Second connecting part 34 and third connecting part 35

Fourth connection part 36 fifth connection part 37

The holding part 38 is an insulating strip 4

Notch 41 insulation block 5

Socket connector 200 socket body 6

Sidewall 61 recess 610

Channel 611 slot 62

Slot 63 receptacle terminal 7

Abutting part 71 elastic part 711

The arc portion 712 connects the portions 72

Mounting section 73 fourth terminal group 7a

Fifth terminal group 7b sixth terminal group 7c

The seventh terminal group 7d differential signal terminals S5, S6, S7

Ground terminals G5, G6 power supply terminals P3, P7

Socket grounding piece 8 body part 81

Opening 811 first resilient arm 82

Arcuate projections

84, 85 of second resilient arm 83

Module 9 groove 91

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

[ 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.

Referring to fig. 1-4, the receptacle connector 200 and the plug connector 100 of the present invention are mated to transmit high frequency signals, and in the present embodiment, the plug connector 100 and the receptacle connector 200 use SFF8639 transmission interface, which is suitable for the latest generation pci 5.0 transmission protocol, and supports a signal transmission rate of 32GT/s or more, and the transmission bandwidth can reach 128 GB/s.

For convenience of description, the direction of mating the plug connector 100 with the receptacle connector 200 is defined as the front-back direction, and when mating, the front end of the plug connector 100 is inserted from the back end of the receptacle connector 200 to complete the mating.

Referring to fig. 5-7 and 11-12, the plug connector 100 includes a plug body 1, a plurality of plug terminals 2 disposed on the plug body 1, a plug grounding strip 3, an insulating strip 4, and an insulating block 5.

The plug body 1 includes a base 11 extending in the left-right lengthwise direction and a tongue plate 12 extending forward from the base 11. The tongue plate 12 has upper and

lower surfaces

121, 122 oppositely disposed, a tab 120 upwardly protruding from the upper surface 121, and a terminal groove 123 disposed on the upper and

lower surfaces

121, 122 and the tab 120. Each plug terminal 2 is provided with a contact portion 21 received in the terminal groove 123 and exposed on the tongue plate 12, a tail portion 23 extending outside the plug body 1, a holding portion 22 located between the contact portion 21 and the tail portion 23 and held on the base portion 11, and a narrowed portion 24 extending forward from the front end of the contact portion 21, and the narrowed portion 24 has a smaller width in the left-right direction than the contact portion 21. The contact portion 21 and the narrowing portion 24 are received in the corresponding terminal groove 123, two sides of the narrowing portion 24 protrude outwards to form a step portion 241, two sides of the front end of the terminal groove 123 are provided with a protrusion 124 which is pressed against the corresponding step portion 241, the protrusion 124 presses against the step portion 241 to fix the narrowing portion 24 in the terminal groove 123 better, and further, the front end of the plug terminal 2 is prevented from warping outwards.

The plug terminals 2 are each flat and assembled to the plug body 1 from the rear to the front, and include a first terminal group 2a disposed on the lower surface 122 of the tongue plate 12 and arranged in a row, a row of second terminal groups 2b disposed on the upper surface 121 of the tongue plate 12 and located on the left side of the tab 120, a row of third terminal groups 2c disposed on the upper surface 121 of the tongue plate 12 and located on the right side of the tab 120, and a fourth terminal group 2d disposed on the tab 120. The first terminal group 2a comprises a plurality of pairs of differential signal terminals S1 and a plurality of ground terminals G1, the ground terminals G1 are arranged at intervals between two adjacent pairs of differential signal terminals S1; the second terminal group 2b also comprises a plurality of pairs of differential signal terminals S2 and ground terminals G2 which are arranged at intervals; the third terminal group 2c includes a power supply terminal P1 for transmitting power; the fourth terminal group 2d includes a differential signal terminal S4 and a power supply terminal P4. In the present embodiment, the ground terminals G1, G2 are longer than the corresponding differential signal terminals S1, S2, and the front ends of the ground terminals G1, G2 protrude forward beyond the front ends of the corresponding differential signal terminals S1, S2, that is, the narrowed portions 24 of the ground terminals G1, G2 protrude forward beyond the narrowed portions 24 of the corresponding differential signal terminals S1, S2, so that the narrowed portions 24 of the ground terminals G1, G1, G2 will preferentially contact the receptacle terminals 7 on the receptacle connector 200 when the plug connector 100 is mated with the receptacle connector 200 (details will be described later).

The plug ground strip 3 is assembled to the plug body 1 from the rear to the front and is located between the first terminal group 2a and the second and third

terminal groups

2b and 2c, and the plug ground strip 3 includes a pair of beam portions 31 extending in the longitudinal direction and a plurality of bridge portions 32 connected between the pair of beam portions 31. The pair of beam portions 31 are arranged in parallel in the front-rear direction, and the bridge portions 32 extend in the front-rear direction and are arranged in parallel in the longitudinal direction. The plug grounding piece 3 is further integrally provided with a plurality of first connecting portions 33, a plurality of second connecting portions 34 and a plurality of third connecting portions 35, the first, second and third connecting

portions

33, 34 and 35 are formed by bending and extending downward from the corresponding beam portions 31, wherein the first and second connecting

portions

33 and 34 are formed by extending the same beam portion 31 in a back direction, the third connecting portion 35 is formed by extending the other beam portion 31 and the second connecting portion 34 in opposite directions, and the second and third connecting

portions

34 and 35 are located between the two beam portions 31 in the front-back direction. The first, second and third connecting

portions

33, 34 and 34 are respectively connected to different positions corresponding to each ground terminal G1 in the first terminal group 2a, so as to eliminate the potential difference between the respective portions of the ground terminal G1 as much as possible, so that the respective portions of the ground terminal G1 obtain the same ground potential as much as possible, improve signal crosstalk, and shift the resonance point of the crosstalk to a high frequency, thereby improving the performance of high frequency transmission. Further, the first connection portion 33 is connected to the narrowed portion 24 of the ground terminal G1, the second connection portion 34 is connected to the contact portion 21 of the ground terminal G1, and the third connection portion 35 is connected to the holding portion 22 of the ground terminal G1, and the first, second and

third connection portions

33, 34, 35 of the same ground terminal G1 extend on the same straight line in the front-rear direction, so that the first, second and

third connection portions

33, 34 are connected to different portions of the corresponding ground terminal G1 as dispersedly as possible, thereby achieving the best effect of improving high frequency performance. The distance between the first and

second connection portions

33 and 34 connected to the same ground terminal G1 is smaller than the distance between the corresponding second and

third connection portions

34 and 35. The first, second and third connecting

portions

33, 34 and 35 are respectively provided with an abutting portion 38 extending along the horizontal direction and located on the same horizontal plane, the first, second and third connecting

portions

33, 34 and 35 abut against the corresponding narrowing portion 24, contact portion 21 and holding portion 22 of the ground terminal G1 through the abutting portion 38, when the plug connector 100 is mated with the receptacle connector 200, the narrowing portion 24 of the ground terminal G1 will preferentially contact with the receptacle terminal 7 on the receptacle connector 200, and the first connecting portion 33 abuts against the narrowing portion 24 to prevent the front end of the ground terminal G1 from deforming or moving.

The plug ground strip 3 is further provided with a plurality of fourth connecting portions 36 and fifth connecting portions 37 bent and extended integrally from the beam portion 31, and the fourth and fifth connecting

portions

36, 37 are respectively connected to different positions of the ground terminal G2 in the corresponding second terminal group b, so that the plug ground strip 3 can electrically connect two rows of ground terminals G1, G2 together through the five different connecting

portions

33, 34, 35, 36, 37 to form a closed loop, so as to further improve the overall high-frequency performance of the plug connector 100. The fourth and fifth connecting

portions

36 and 37 respectively upwardly support against the lower surfaces of the contact portion 21 and the holding portion 22 of the corresponding ground terminal G2, thereby preventing the ground terminal G2 from being deformed or moved. The widths of the fourth and fifth connecting

portions

36 and 37 in the longitudinal direction are smaller than the widths of the first, second and third connecting

portions

33, 34 and 35, and the lengths of the fourth and fifth connecting

portions

36 and 37 in the front-rear direction are equal to the lengths of the first, second and third connecting

portions

33, 34 and 35.

The differential signal terminal S1 of the first terminal group 2a and the holding part 22 of the ground terminal G1 are embedded and formed on the insulating strip 4, the insulating strip 4 is installed behind the plug body 1, the insulating strip 4 is provided with a plurality of notches 41 facing the ground strip 3, the third connecting part 35 is accommodated in the corresponding notch 41 and then passes through the notch 41 and is connected to the corresponding holding part 22, the notch 41 is arranged so that the third connecting part 35 is connected to the holding part 22 of the ground terminal G1 to yield, thereby increasing the distance between the second and third connecting

parts

34 and 35 and improving the high-frequency performance of the plug connector 100.

The differential signal terminal S2 of the second terminal set 2b and the holding part 22 of the ground terminal G2 are embedded and molded on the insulating block 5, the insulating block 5 is installed at the rear of the plug body 1, and the ground strip 3 is assembled on the plug body 1 from the rear to the front and clamped between the insulating strip 4 and the insulating block 5, so as to well limit the ground strip 3.

Referring to fig. 8-12, the socket connector 200 includes a socket body 6, a plurality of socket terminals 7 disposed on the socket body 6, and a socket grounding strip 8 and a module 9 assembled to the socket body 6.

The socket body 6 includes two side walls 61 extending along the longitudinal direction and disposed opposite to each other, and an elongated slot 62 located between the two side walls 61, where the slot 62 is used for receiving the tongue plate 12 of the plug connector 100. The two side walls 61 are provided with a plurality of channels 611 communicated with the slot 62, and the upper side wall 61 is provided with a concave part 610 correspondingly accommodating the protruding key 120.

Each socket terminal 7 is an elastic terminal and is assembled to the socket body 6 from front to back, and each socket terminal 7 is provided with an installation portion 73 extending outside the socket body 6, an elastic abutting portion 71 opposite to the installation portion 73, and a connection portion 72 connecting the installation portion 73 and the abutting portion 71. The abutting portion 71 has an elastic portion 711 accommodated in the corresponding passage 661 and extending obliquely upward, and an arc portion 712 protruding into the insertion groove 62, the arc portion 712 being adapted to elastically contact with the contact portion 21 of the plug terminal 2.

The socket terminal 7 includes a fourth terminal group 7a disposed below the insertion groove 62 and arranged in a row, a fifth terminal group 7b disposed above the insertion groove 62 and located on the right side of the recess 61, a sixth terminal group 7c disposed above the insertion groove 62 and located on the left side of the recess 61, and a seventh terminal group 7d disposed in the recess 610. The fourth terminal group 7a is correspondingly matched with the first terminal group 2a in a butt joint mode and comprises a plurality of pairs of differential signal terminals S5 and a plurality of ground terminals G5, and the ground terminals G5 are arranged between two adjacent pairs of differential signal terminals S5 at intervals; the fifth terminal group 7b is correspondingly matched with the second terminal group 2b in a butt joint way, and also comprises a plurality of pairs of differential signal terminals S6 and ground terminals G6 which are arranged at intervals; the sixth terminal group 7c is correspondingly matched with the third terminal group 2c in a butt joint mode and comprises a power supply terminal P3 for transmitting power; the seventh terminal set 7d is correspondingly mated with the fourth terminal set 2d, and includes a differential signal terminal S7 and a power terminal P7. In the present embodiment, the ground terminals G5 and G6 have the same length as the corresponding differential signal terminals S5 and S6.

The lower side wall 61 is provided with a slot 63 recessed forward from the rear end and communicating with the channel 611. The socket ground strip 8 is assembled into the slot 63 of the socket body 6 from the rear to the front, and has a main body 81 received in the slot 63, a plurality of first elastic arms 82 elastically abutting against the abutting portions 71 of the ground terminals G5 in the corresponding fourth terminal group 7a, and a plurality of second elastic arms 83 elastically abutting against the connecting portions 72 of the ground terminals G5 in the corresponding fourth terminal group 7 a. Similarly, the first elastic arm 82 and the second elastic arm 83 of the socket grounding strip 8 respectively abut against the abutting part 71 and the connecting part 72 of the grounding terminal G5, so as to eliminate the potential difference between the parts of the grounding terminal G5 as much as possible, so that the parts of the grounding terminal G5 obtain the same grounding potential as much as possible, improve signal crosstalk, shift the resonance point of the crosstalk to a high frequency, and further improve the performance of high frequency transmission, and meanwhile, the socket grounding strip 8 can realize continuous impedance of the socket terminal 7 through the two different positions of the first elastic arm 82 and the second elastic arm 83 corresponding to the grounding terminal G1, and avoid the phenomenon of sudden impedance change in the circuit.

The first elastic arm 82 is accommodated in the corresponding channel 611 and abuts against the elastic part 711 of the corresponding ground terminal G5, when the plug connector 100 is mated with the receptacle connector 200, since the narrowed part 24 of the ground terminal G1 will preferentially press-fit with the arc part 712 of the ground terminal G5 of the receptacle connector 200, the first elastic arm 82 abuts against the elastic part 711, which can increase the structural strength of the elastic part 711 and further prevent the front end of the ground terminal G5 from being excessively deformed.

In the present embodiment, the first elastic arm 82 is integrally punched upward from the main body 81 and extends rearward, and the second elastic arm 83 is integrally extended forward from the front end of the main body 81. The first elastic arm 82 and the second elastic arm 83 are respectively bent and protruded upwards to form arc-shaped

protrusions

84 and 85 to elastically abut against the abutting portion 71 and the connecting portion 72 of the corresponding ground terminal G5, and because the elastic portion 711 extends upwards in an inclined manner, the height of the arc-shaped protrusion 84 of the first elastic arm 82 protruding in the up-down direction is higher than the height of the arc-shaped protrusion 85 of the second elastic arm 83, so as to support the elastic portion 711 well. The first elastic arm 82 is arranged in an L shape, so that the linear distance from the joint of the elastic arm 82 and the main body 81 to the arc-shaped convex part 84 is shortened, the arm length of the elastic arm 82 can be reduced, and the elastic deformation capability of the elastic arm 82 is improved. The main body 81 of the receptacle ground strip 8 extends rearward beyond the mating portion 71 to enhance the anti-interference effect of the receptacle ground strip 8 against external signals, and the rear end of the main body 81 is provided with a plurality of openings 811 for receiving the curved portions 712 of the corresponding differential signal terminals S5 and ground terminals G5, so that when the differential signal terminals S5 and ground terminals G5 are mated with the plug connector 100, the curved portions 712 are deformed and do not contact the receptacle ground strip 8.

The connecting portion 72 of the differential signal terminal S5 and the ground terminal G5 is embedded and molded on the module 9, the module 9 is assembled to the rear of the socket body 6 and is provided with a plurality of grooves 91 exposing the connecting portion 72 of the corresponding ground terminal G5, and the second elastic arm 83 penetrates through the corresponding groove 91 and abuts against the corresponding connecting portion 72, so that the groove 91 is arranged to allow the second elastic arm 83 to abut against the connecting portion 72 of the ground terminal G5, thereby increasing the distance between the first elastic arm 82 and the second elastic arm 83 and better improving the high-frequency performance of the socket connector 200.

The utility model discloses a plug connector has following beneficial effect:

(1) the utility model discloses a socket grounding piece 8 supports respectively through first elastic arm 82 and second elastic arm 83 and holds on the butt joint portion 71 and the connecting portion 72 of ground terminal G5, and then has improved signal crosstalk, has improved high frequency transmission's performance, realizes simultaneously that socket terminal 7's impedance is continuous, avoids appearing the phenomenon of impedance sudden change in the circuit, the utility model discloses a socket connector 200 can support the signal transmission rate more than 32GT/s after improving.

(2) The first elastic arm 82 of the present invention is accommodated in the corresponding channel 611 and abuts against the elastic part 711 of the corresponding ground terminal G5, so that the structural strength of the elastic part 711 can be increased and the front end of the ground terminal G5 can be prevented from being excessively deformed.

(3) The utility model discloses a first elastic arm 82 is the setting of L type, has consequently shortened the junction of elastic arm 82 and main part 81 to the linear distance of arc convex part 84, and then can reduce elastic arm 82's arm of force length, has promoted elastic arm 82's elastic deformation ability.

(4) The utility model discloses a module 9 is equipped with a plurality of exposed recess 91 that correspond ground terminal G5 connecting portion 72, can do second elastic arm 83 supports to hold and abdicate at ground terminal G5's connecting portion 72, and then increases the interval between first, second

elastic arm

82, 83, improves socket connector 200's high frequency performance better.

The above is merely a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby. All the equivalent changes and modifications made in the claims and the specification of the present invention should be covered by the present invention.

Claims

1. A socket connector comprises a socket body, a plurality of socket terminals arranged on the socket body and a socket grounding sheet; each socket terminal is provided with an installation part extending out of the socket body, an elastic butt joint part opposite to the installation part and a connecting part for connecting the installation part and the butt joint part; the socket terminal is including arranging a plurality of pairs of differential signal terminal and a plurality of ground terminal into one row, ground terminal interval arrangement is between adjacent two pairs of differential signal terminal, its characterized in that: the socket grounding piece is integrally provided with a plurality of first elastic arms and a plurality of second elastic arms, and the first elastic arms and the second elastic arms are respectively and elastically abutted against the butt joint parts and the connecting parts of the corresponding grounding terminals.

2. The receptacle connector of claim 1, wherein: the socket terminal assembles extremely from preceding back socket ontology, the socket grounding piece assembles extremely from back socket ontology, socket ontology is equipped with from the rear end forward the length slot of establishing of concave and the lateral wall that is located the slot both sides, the lateral wall be equipped with a plurality of with the passageway of slot intercommunication, elasticity butt joint portion is equipped with accepts in the passageway that corresponds elasticity portion and the arc portion that stretches into in the slot, first elastic arm is acceptd in the passageway that corresponds and is supported and hold on the elasticity portion that corresponds.

3. The receptacle connector of claim 2, wherein: the side wall is provided with a slot which is concavely arranged from the rear end to the front and is communicated with the channel, the socket grounding piece is provided with a main body part contained in the slot, the first elastic arm is integrally and upwards punched from the main body part and extends backwards, and the second elastic arm is integrally and forwards extended from the front end of the main body part.

4. The receptacle connector of claim 3, wherein: the elastic parts extend backwards and obliquely towards the direction of the slot, and the first elastic arms abutting against the corresponding elastic parts are higher than the second elastic arms in the protruding height along the up-down direction.

5. The receptacle connector of claim 3, wherein: the first elastic arm is arranged in an L shape, and the rear end of the main body part is provided with a plurality of openings for accommodating arc-shaped parts corresponding to the differential signal terminal and the grounding terminal.

6. The receptacle connector of claim 1, wherein: the socket connector further comprises a module assembled on the socket body, connecting portions of the differential signal terminals and the grounding terminals are embedded and molded on the module, the module is provided with a plurality of grooves exposed corresponding to the connecting portions of the grounding terminals, and the second elastic arms penetrate through the corresponding grooves and then abut against the corresponding connecting portions.

7. A socket connector comprises a socket body, a plurality of socket terminals arranged on the socket body and a socket grounding sheet assembled on the socket body; the socket body comprises two side walls extending along the longitudinal direction and a longitudinal slot positioned between the two side walls; the socket terminal includes a plurality of pairs of differential signal terminals and a plurality of ground terminals that are arranged in a row below the slot and protrude into the slot, the ground terminals are arranged between two adjacent pairs of differential signal terminals at intervals, and the socket terminal is characterized in that: the socket connector is configured to support a signal transmission rate of 32GT/s or higher, and the socket grounding plate is integrally provided with at least two resilient arms corresponding to each grounding terminal to connect different positions of the corresponding grounding terminal.

8. The receptacle connector of claim 7, wherein: each socket terminal is provided with an installation part extending out of the socket body, an elastic butt joint part protruding into the slot and a connecting part connecting the installation part and the butt joint part; the two elastic arms respectively and elastically abut against the butt joint part and the connecting part of the corresponding grounding terminal upwards, and the elastic arm abutting against the butt joint part is higher than the elastic arm abutting against the connecting part.

9. The receptacle connector of claim 8, wherein: the socket grounding piece is assembled into the slot from the back to the front, the two elastic arms extend back to back along the front-back direction to form the socket grounding piece, and the elastic arms abutting against the butt joint parts are arranged in an L shape.

10. The receptacle connector of claim 9, wherein: the socket grounding strip extends backwards to exceed the elastic butt joint part, and the rear end of the grounding strip is provided with a plurality of openings for accommodating the elastic butt joint parts of the corresponding differential signal terminals and the grounding terminals.