Electric connector

Abstract

The invention discloses an electric connector. The electric connector comprises a shell; the plurality of signal terminals are accommodated in the shell and are arranged in rows along the left-right direction, each signal terminal comprises a signal contact part, and the signal contact part is downwards contacted with a butt joint element; the shielding piece comprises a first shielding piece and a second shielding piece which are located on the front side and the rear side of the signal terminal, the first shielding piece comprises a first elastic finger, and the second shielding piece comprises a second elastic finger; the grounding piece is located below the first shielding piece and the second shielding piece, the grounding piece comprises a first elastic abutting part and a second elastic abutting part, the first elastic abutting part and the second elastic abutting part abut against the butt joint element downwards, the first elastic abutting part abuts against the first elastic finger upwards, and the second elastic abutting part abuts against the second elastic finger upwards. According to the invention, the shielding effect is enhanced, and the elastic abutting part can keep good elasticity.

Description

[Technical field]

[0001] The present invention relates to an electrical connector, in particular to an electrical connector for high-frequency signal transmission. [Background technology]

[0002] Electrical connectors that transmit high-frequency signals usually include multiple signal terminals. In order to reduce the crosstalk between signal terminals and the interference of external signals on differential signal terminal pairs, shielding components are often installed in the electrical connectors. However, with the improvement of server performance, the requirements for high-frequency signal transmission performance of connectors are getting higher and higher. The traditional shielding component structure can no longer meet the requirements. How to enhance the shielding effect of signal terminals has become an urgent problem to be solved by people in this field. [Summary of the invention]

[0003] The purpose of the invention is to provide an electrical connector, in which an elastic finger is arranged on the shielding part, and an elastic abutting part is arranged on the grounding part, the elastic abutting part abuts against the docking element downward and abuts against the first elastic finger upward, thereby enhancing the shielding effect while allowing the elastic abutting part to maintain good elasticity.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] An electrical connector, characterized in that it comprises: a shell; a plurality of signal terminals, which are accommodated in the shell and arranged in a row along the left-right direction, the signal terminals comprising signal contact portions, the signal contact portions being used to contact a docking element downward; a shielding member comprising a first shielding member and a second shielding member located at the front and rear sides of the signal terminal, the first shielding member comprising a first elastic finger, and the second shielding member comprising a second elastic finger; a grounding member, which is located below the first shielding member and the second shielding member, the grounding member comprising a first elastic abutting portion and a second elastic abutting portion, the first elastic abutting portion and the second elastic abutting portion abutting the docking element downward, the first elastic abutting portion abutting the first elastic finger upward, and the second elastic abutting portion abutting the second elastic finger upward.

[0006] Furthermore, two adjacent signal terminals form a signal terminal pair, there are multiple first shielding parts and multiple second shielding parts, a first shielding part and a second shielding part are respectively located at the front and rear sides of a corresponding signal terminal pair, a first shielding part extends forward with two first extension arms, each first extension arm is provided with a first elastic finger, and a second shielding part extends backward with a second extension arm, each second extension arm is provided with two second elastic fingers.

[0007] Furthermore, the signal terminal pairs are arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, the second shielding parts are arranged in at least two rows along the front-to-back direction, a first shielding part of the second row is provided with two first elastic fingers, the two first elastic fingers respectively extend from two first extension arms in the left-right direction toward each other, there is a spacing space between the two first elastic fingers on the same first shielding part, a second extension arm of the first row is accommodated in the spacing space, and the second extension arm has second elastic fingers extending to the left and right respectively.

[0008] Furthermore, two adjacent signal terminals form a signal terminal pair, there are multiple first shielding parts and second shielding parts, a first shielding part and a second shielding part are respectively located at the front and rear sides of a corresponding signal terminal pair, the signal terminal pair is arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, and the second shielding parts are arranged in at least two rows along the front-to-back direction, the grounding member includes a grounding body located between the two rows of signal terminal pairs, a first elastic arm extending forward from the grounding body, and a second elastic arm extending backward from the grounding body, the grounding body is fixed to the first shielding member, the front ends of the two adjacent first elastic arms are connected by a first connecting part, the first connecting part extends forward with a first elastic abutting part, the rear ends of the two adjacent second elastic arms are connected by a second connecting part, and the second connecting part extends backward with a second elastic abutting part.

[0009] Further, the signal terminal pairs are arranged in four rows along the front-to-back direction, the first shielding parts are arranged in four rows along the front-to-back direction, and the second shielding parts are arranged in four rows along the front-to-back direction. The grounding member includes a first grounding member and a second grounding member, the first grounding member is located below the first shielding members in the first row and the second row, and the second grounding member is located below the first shielding members in the third row and the fourth row. The first connecting part extends forward with a first elastic abutting portion, and the second connecting part extends backward with two second elastic abutting portions. The first elastic abutting portion of the second grounding member is located between two adjacent second elastic abutting portions of the first grounding member. A first shielding part is provided with two first elastic fingers, and a second shielding part is provided with two second elastic fingers. A first elastic abutting portion abuts against the two first elastic fingers on a first shielding part at the same time, and the two second elastic abutting portions abut against the two second elastic fingers on a second shielding part respectively.

[0010] Furthermore, it includes multiple conductive strips, which are located between two adjacent signal terminals. The grounding member includes a grounding body extending in the left-right direction and multiple elastic arms extending from the grounding body in the front-to-back direction. The elastic arms are in contact with the conductive strips. The elastic arms have a grounding contact portion, which is located on the left and right sides of the signal contact portion. The grounding body includes multiple fixed portions and a first elastic abutting portion and / or a second elastic abutting portion located between two adjacent fixed portions. The fixed portion is fixed to the conductive strip, and the first elastic abutting portion and / or the second elastic abutting portion extend in the left-right direction.

[0011] Furthermore, the conductive strip includes two overlapping portions and a matching portion located between the two overlapping portions, the two overlapping portions are in contact with an elastic arm, the matching portion is directly opposite to the grounding contact portion, and the matching portion extends downward beyond the two overlapping portions.

[0012] Furthermore, two adjacent signal terminals form a signal terminal pair, a conductive strip is provided between the two adjacent signal terminal pairs, there are multiple first shielding parts and multiple second shielding parts, a first shielding part and a second shielding part are respectively located at the front side and the rear side of a corresponding signal terminal pair, a first fixing groove is provided between the two adjacent first shielding parts, and a second fixing groove is provided between the two adjacent second shielding parts, and the conductive strip is fixed in the first fixing groove and the second fixing groove and connects the first shielding part and the second shielding part.

[0013] Further, the signal terminal pairs are arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, a conductive strip includes a first conductive segment located between two adjacent signal terminal pairs in the first row, a second conductive segment located between two adjacent signal terminal pairs in the second row, and a joining segment connecting the first conductive segment and the second conductive segment, the first shielding parts of the second row extend forward with a first extension arm, each first extension arm is provided with a first elastic finger, a positioning groove is provided between two adjacent first extension arms belonging to different first shielding parts, the positioning groove is connected to the first fixing groove, the joining segment is positioned in the positioning groove, and the lower surface of the joining segment and the lower surfaces of the two first extension arms form a welding surface, the grounding part includes a grounding body extending in the left-right direction, a plurality of first elastic arms extending forward from the grounding body, and a plurality of second elastic arms extending backward from the grounding body, the grounding body is welded to the welding surface, the first elastic arm contacts the first conductive segment, and the second elastic arm contacts the second conductive segment.

[0014] Furthermore, one of the first elastic arms extends forward to form two third elastic abutment parts, and a slot opening forward is provided between the two third elastic abutment parts. The third elastic abutment part abuts against the first extension arm upward and abuts against the docking element downward.

[0015] Furthermore, two adjacent signal terminals form a signal terminal pair, and the signal terminal pair is arranged in at least two rows along the front-to-back direction. The signal terminal includes a signal main body and a signal flare arm, and the signal flare arm extends along a first direction, and the first direction is perpendicular to the left-to-right direction. The signal contact portion is provided on the signal flare arm, and the signal contact portion elastically abuts against the docking element downward, and the grounding member includes a grounding body located between the two rows of signal terminal pairs, and the grounding body is provided with a first elastic abutting portion extending to the right and a second elastic abutting portion extending to the left. Along the front-to-back direction, the projection of the signal flare arm overlaps with the projection of the first elastic abutting portion and the projection of the second elastic abutting portion.

[0016] An electrical connector, characterized in that it includes: a shell; a plurality of signal terminal pairs, which are accommodated in the shell and arranged in rows along the front-to-back direction, each signal terminal pair includes two signal terminals, each of the signal terminals includes a signal contact portion, and the signal contact portion contacts a docking element downward; a plurality of shielding members, which are located on the front and rear sides of the signal terminal pairs, and the shielding members include elastic fingers; a grounding member, which is located below the shielding member, and the grounding member includes a plurality of elastic abutting portions, which are located on the front and rear sides of the signal contact portion, and the elastic abutting portions abut against the docking element downward, and abut against the elastic fingers upward.

[0017] Furthermore, it comprises a plurality of conductive strips, the conductive strips are located on the left and right sides of the signal terminal pair, the grounding member comprises a fixing portion and an elastic contact portion extending leftward or rightward from the fixing portion, and the fixing portion is fixed to the conductive strips.

[0018] Furthermore, the fixed portion has an elastic arm extending forward or backward, the elastic arm is provided with a grounding contact portion, the conductive strip includes two overlapping portions and a matching portion located between the two overlapping portions, the two overlapping portions are in contact with the elastic arm, the matching portion is opposite to the grounding contact portion, and the matching portion extends downward beyond the two overlapping portions.

[0019] Furthermore, the shielding member includes a first shielding member and a second shielding member located on the front and rear sides of the signal terminal pair, and a first shielding member and a second shielding member are provided between two adjacent signal terminal pairs. The first shielding member has two first extension arms extending forward, and each first extension arm is provided with a first elastic finger. The second shielding member has a second extension arm extending backward, and each second extension arm is provided with two second elastic fingers. The two first elastic fingers extend toward each other in the left and right directions respectively from the two first extension arms, and there is a spacing space between the two first elastic fingers. A second extension arm is accommodated in the spacing space, and the second extension arm has second elastic fingers extending to the left and right respectively.

[0020] Compared with the prior art, the electrical connector provided by the present invention has the following beneficial effects:

[0021] The signal terminal is shielded in the front and rear directions by arranging the first shielding member and the second shielding member, and a grounding member is arranged below the first shielding member and the second shielding member, and the grounding member has a first elastic abutting portion and a second elastic abutting portion to abut the docking element downward, so that the shielding effect can be enhanced at the signal contact portion. The first elastic abutting portion abuts the first elastic finger upward, and the second elastic abutting portion abuts the second elastic finger upward, that is, the grounding member contacts the first shielding member and the second shielding member at multiple points, and the three are conductively connected to form multiple grounding loops, which further improves the shielding effect of the signal terminal. On the other hand, the first elastic finger will give the first elastic abutting portion a downward elastic force, and the second elastic finger will give the second elastic portion a downward elastic force, which makes the first elastic abutting portion and the second elastic abutting portion have better elastic force when they abut downward against the docking element, and the abutment with the docking element is more stable. The first elastic finger and the second elastic finger are distributed on the first shielding member and the second shielding member, that is, the force given to the grounding member by the first elastic finger and the second elastic finger as a whole will be dispersed at various places of the grounding member, further making the abutment between the grounding member and the docking element more stable.

Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the electrical connector of the present invention;

[0023] Figure 2 is a three-dimensional exploded view of the electrical connector of the present invention;

[0024] Figure 3 It is an exploded schematic diagram of a signal terminal, an insulating member, a conductive member, a conductive shielding member, a shielding member, and a cable assembly of the electrical connector of the present invention;

[0025] Figure 4 It is an exploded schematic diagram of the signal terminal, the insulating member, the conductive member and the conductive shielding member of the present invention;

[0026] Figure 5 It is a schematic diagram of the combination of the signal terminal, the insulating member, the conductive member and the conductive shielding member of the present invention;

[0027] Figure 6 is a top view of the electrical connector of the present invention;

[0028] Figure 7 is a schematic diagram of the electrical connector of the present invention from another viewing angle;

[0029] Figure 8 for Figure 6 Sectional view along line AA;

[0030] Fig. 9 for Figure 6 Sectional view along line BB;

[0031] Fig.10for Figure 6 Sectional view along line CC;

[0032] Fig.11 for Figure 7 Enlarged schematic diagram of point D in the middle.

[0033] Description of the accompanying drawings for the specific implementation:

[0034]

[0035] [Specific implementation method]

[0036] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0037] The electrical connector of the present invention defines the left-right direction as the X-axis, the left direction as the positive direction of the X-axis, the front-back direction as the Y-axis, the forward direction as the positive direction of the Y-axis, the up-down direction as the Z-axis, the upward direction as the positive direction of the Z-axis, and the horizontal direction is perpendicular to the up-down direction. When the related structures are arranged in multiple rows in the front-back direction, they are defined as the first row, the second row, the third row, and the fourth row from front to back.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an electrical connector that is docked downward with a docking element, including a shell 1, a signal terminal 2, an insulating member 3, a conductive member 4, a conductive shielding member 42, a shielding member 6, a conductive strip 7, a grounding member 8 and a cable assembly 9. In this embodiment, the docking element is a circuit board.

[0039] The shell 1 includes a front wall 11, a rear wall 12, three fixing bars 14 located between the front wall 11 and the rear wall 12, and two opposite side walls 13. The two side walls 13 connect the front wall 11, the rear wall 12 and the three fixing bars 14. Receiving grooves 15 are arranged between the fixing bars 14 and the front wall 11, between two adjacent fixing bars 14, and between the fixing bars 14 and the rear wall 12. The upper surface of the fixing bar 14 extends upward beyond the upper surface of the front wall 11 and the upper surface of the side wall 13, and the upper surface of the rear wall 12 extends upward beyond the upper surface of the front wall 11 and the upper surface of the side wall 13.

[0040] There are multiple signal terminals 2 and they are accommodated in the accommodating grooves 15. Two adjacent signal terminals 2 form a signal terminal pair 20. The multiple signal terminal pairs 20 are arranged in rows along the left-right direction and in four rows along the front-back direction. Specifically, every six signal terminal pairs 20 are arranged in a row along the left-right direction, and every four signal terminal pairs 20 are arranged in a column along the front-back direction. Of course, in other embodiments, multiple signal terminal pairs 20 can also be arranged in rows along the front-back direction and in multiple rows along the left-right direction.

[0041] like Figure 4 and Figure 5 As shown, the signal terminal 2 includes a signal main body 22, a signal connection part 21 extending backward and upward from the signal main body 22, and a signal flare arm 23 extending downward from the signal main body 22. The signal flare arm 23 includes a first signal flare arm 231, a connecting arm 232 and a second signal flare arm 233. The first signal flare arm 231 extends forward from the main body 22, the connecting arm 232 connects the first signal flare arm 231 and the second signal flare arm 233, the second signal flare arm 233 extends backward from the connecting arm 232, and the second signal flare arm 233 is provided with a signal contact part 2331 abutting against the circuit board.

[0042] There are multiple insulating members 3, and each insulating member 3 fixes a signal terminal pair 20. Of course, in other embodiments, one insulating member 3 can also fix multiple signal terminal pairs 20. The insulating member 3 includes an insulating body 31, two partition plates 32 extending upward from the insulating body 31, and two extensions 33 extending downward from the insulating body 31. The extensions 33 extend forward beyond the insulating body 31.

[0043] The signal main body 22 is fixed to the insulating body 31, the signal flare arm 23 extends downward beyond the insulating body 31 and is located between the two extension parts 33, the connecting arm 232 extends forward beyond the insulating body 31, the signal wiring part 21 is located between the two partition plates 32 and the insulating part 3 is exposed upward. Specifically, the signal wiring part 21 includes an upper surface 211, a lower surface 212 and two side surfaces 213 connecting the upper surface 211 and the lower surface 212, the upper surface 211 exposes the insulating part 3 upward, the side surfaces 213 are fixed to the insulating part 3, the insulating part 3 is provided with a groove 311, and the lower surface 212 is at least partially exposed to the groove 311, so that the lower surface contacts more air, changes the dielectric constant around the signal wiring part 21, thereby adjusting the impedance at the signal wiring part 21 and improving the signal integrity.

[0044] Along the left-right direction, a conductive member 4 without a hole is provided between two adjacent signal terminal pairs 20. The conductive member 4 includes a conductive main body portion 41, a bending portion 43 and a conductive shielding portion 42. The conductive main body portion 41 is located between two adjacent signal main bodies 22. Both the signal main body portion 22 and the conductive main body portion 41 are plate-shaped. The plate surface of the signal main body portion 22 is perpendicular to the plate surface of the conductive main body portion 41. The bending portion 43 includes a first bending portion 431 and a second bending portion 432. The first bending portion 431 is bent to the right from the front end of the conductive main body portion 41, and the second bending portion 432 is bent to the left from the rear end of the conductive main body portion 41. The conductive shielding portion 42 is extended upward from the conductive main body portion 41, and the conductive shielding portion 42 is located between two adjacent partition plates 32 belonging to different insulating members 3. Along the left-right direction, the conductive shielding portion 42 completely shields the signal wiring portion 21.

[0045] like Figure 3 As shown, the cable assembly 9 includes a grounding structure 92 and a plurality of signal lines 91 . The signal lines 91 are connected to the upper surface 211 of the signal wiring portion 21 . The grounding structure 92 includes a shielding layer 921 and a conductive silver paste 922 .

[0046] like Figure 2 , Figure 3 and Fig.10 As shown, the conductive shielding member 5 includes a first conductive shielding member 51, a second conductive shielding member 52, and a third conductive shielding member 53. There are multiple first conductive shielding members 51, and each first conductive shielding member 51 corresponds to a signal terminal pair 20. The first conductive shielding member 51 includes two side plates 511 and a connecting plate 512 connecting the two side plates 511. The two side plates 511 are respectively located on the left and right sides of the signal wiring portion 21. The side plates 511 are fixed between the conductive shielding portion 42 and the partition plate 32 and are connected to the conductive shielding portion 42. The side plates 511 include wings 5111 that extend backward beyond the signal wiring portion 21. The connecting plate 512 is located on the upper side of the signal wiring portion 21. Two through holes 5121 are provided on the connecting plate 512. In a direction perpendicular to the connecting plate 512, each through hole 5121 overlaps with a corresponding signal wiring portion 21. The design of the through hole 5121 can reduce the capacitance at the signal wiring portion 21, thereby adjusting the impedance of the signal wiring portion 21.

[0047] The second conductive shielding member 52 includes a first shielding portion 521 and a second shielding portion 522 that is bent downward and extends from the first shielding portion 521. The first shielding portion 521 connects the multiple connecting plates 512 and shields the through holes 5121. Specifically, the first shielding portion 521 is fixed to the multiple connecting plates 512 by welding or the like. The second shielding portion 522 is located at the front side of the signal wiring portion 21, and along the front-to-back direction, the second shielding portion 522 overlaps with the projection of the signal main body portion 22. The lower end of the second shielding portion 522 is recessed with multiple limit openings 5221.

[0048] The third conductive shielding member 53 extends in the left-right direction and is located at the rear side or the lower side of the signal wiring portion 21. The third conductive shielding member 53 includes a third shielding portion 531 and a fourth shielding portion 532. The extension direction of the third shielding portion 531 is the same as the extension direction of the signal wiring portion 21, and the third shielding portion 531 is located at the rear side of the signal wiring portion 21. The third conductive shielding member 53 is connected to the wing portions 5111 of the plurality of side plates 511. The fourth shielding portion 532 is bent downward and extends from the front end of the third shielding portion 531. The fourth shielding portion 532 is located at The rear side of the signal main body 22 and the lower side of the signal wiring part 21; the third conductive shielding member 53 and the fixing bar 14 are integrally injection molded, the third shielding portion 531 upwardly exposes the upper surface of the fixing bar 14 and abuts against the multiple wings 5111 upward, and the fourth shielding portion 532 forwardly exposes the front surface of the fixing bar 14, and the conductive silver glue 922 is filled in the space enclosed by the third shielding portion 531 and the multiple wings 5111, thereby connecting the third shielding portion 531, the multiple wings 5111, the shielding layer 921 and the first shielding portion 521.

[0049] The shielding member 6 includes a conductive shielding member 61 , a first shielding member 62 and a second shielding member 63 .

[0050] like Figure 4 and Figure 5 As shown, the conductive shielding component 61 includes a plate-shaped shielding body 611 and side portions 612 bent backward from both sides of the shielding body 611. The shielding body 611 is fixedly connected to multiple first bending portions 431 by laser spot welding or the like. The plate surface of the shielding body 611 is perpendicular to the plate surface of the conductive main body 41. The conductive shielding component 61 and the multiple conductive main bodies 41 form multiple receiving spaces 613. Similarly, a receiving space 613 is also formed between the side portion 612 and the conductive main body 41. The signal terminal pair 20 and the corresponding insulating component 3 are received in the receiving space 613. In order to improve the shielding effect, the conductive part 4 has no holes, so that two adjacent insulating parts 3 cannot be connected through the conductive part 4. In order to improve the assembly efficiency and avoid the need to assemble the insulating parts 3 one by one during the subsequent assembly, a row of multiple insulating parts 3 are integrally injection molded with multiple signal terminal pairs 20, multiple conductive parts 4, and conductive shielding parts 61, so that a row of insulating parts 3 and a row of signal terminal pairs 20, conductive shielding parts 61, and conductive parts 4 become a whole, and a row of signal terminal pairs 20 can be assembled at one time during assembly.

[0051] In this embodiment, in order to allow multiple insulating members 3 to be integrally injection molded with multiple signal terminal pairs 20, multiple conductive members 4, and conductive shielding members 61, the extensions 33 on the multiple insulating members 3 are first connected to the same auxiliary member, and then the mold is placed through the space between two adjacent extensions 33 and the groove 311 to fix the signal terminal pairs 20 in the receiving space 613. Finally, with the help of the plastic flow channel for molding the auxiliary member, the plastic is filled in the receiving space 613, and multiple insulating members 3 are injection molded at the same time. Of course, in other embodiments, it is also possible not to use auxiliary members, but to set a glue inlet at the rear of each receiving space 613, and fill the insulating members 3 in the receiving space 613 through multiple glue inlets.

[0052] like Figure 3 and Figure 8 As shown, the first shielding member 62 includes a first shielding body 621, a shielding portion 622 bent forward and extended from the lower end of the first shielding body 621, a first shielding portion 623 bent downward and extended from the shielding portion 622, and a clamping arm 624 arranged on the first shielding body 621; the first shielding body 621 is located at the front end of the signal body portion 22, the shielding portion 622 is located on the upper side of the extension portion 33, the shielding portion 622 overlaps with the connecting arm 232 in the up and down direction, and the first shielding portion 623 is located at The front side of the flare arm 23 enables the first shielding portion 623 and the shielding portion 622 to shield the front side and the upper side of the flare arm 23. The clamping arm 624 includes a first portion 6241 extending forward and a second portion 6242 extending upward from the first portion 6241. The first portion 6241 is accommodated in the limiting opening 5221, and the second portion 6242 abuts against the second conductive shielding member 52. The first shielding member 62 is in stable contact with the second conductive shielding member 52 through the cooperation between the clamping arm 624 and the limiting opening 5221.

[0053] In this embodiment, a row of signal terminal pairs 20 corresponds to a first shielding member 62, and a first shielding member 62 has only one first shielding body 621. A plurality of clamping arms 624 are arranged on a first shielding body 621. A first shielding body 621 is bent forward and extends to have a plurality of shielding portions 622. Each shielding portion 622 extends downward to have a first shielding portion 623. Each shielding portion 622 and a first shielding portion 623 are used to shield a corresponding signal terminal pair 20. A first fixing groove 626 is provided between two adjacent first shielding portions 623, and a first fixing groove 626 is also provided between two adjacent shielding portions 622. The first fixing groove 626 is "L"-shaped. A positioning groove 627 is provided between two adjacent first extension arms 6231 belonging to different first shielding portions 623, and the positioning groove 627 is connected to the first fixing groove 626. A first shielding portion 623 extends forward with two first extension arms 6231, each first extension arm 6231 is provided with a first elastic finger 6232, the two first elastic fingers 6232 extend from the two first extension arms 6231 respectively toward each other in the left and right directions, and there is a spacing space 625 between the two first elastic fingers 6232, that is, one first elastic finger 6232 extends to the left from the corresponding first extension arm 6231, and the other first elastic finger 6232 extends to the right from the corresponding first extension arm 6231, and the ends of the two first elastic fingers 6232 are close to each other and have a spacing space 625.

[0054] Of course, in other embodiments, a first shielding member 62 may have only one shielding portion 622 and one first shielding portion 623, and one shielding portion 622 and one first shielding portion 623 shield multiple signal terminal pairs 20, or multiple shielding portions 622 connected together can be seen as one shielding portion 622, and multiple first shielding portions 623 connected together can be seen as one first shielding portion 623, or a row of signal terminal pairs 20 corresponds to multiple first shielding members 62, and each first shielding member 62 corresponds to one or more signal terminal pairs 20.

[0055] like Figure 2 , Figure 8 and Fig. 9 As shown, the second shielding member 63 includes a second shielding body 631, a second shielding portion 632 bent downwardly and extending from the second shielding body 631, the second shielding body 631 is located at the rear side of the signal body 22, the second shielding body 631 is in contact with the fourth shielding portion 532, and the second shielding portion 632 is located at the rear side of the signal flare arm. The first shielding member 62 and the second shielding member 63 are respectively arranged at the front and rear sides of the signal body 22, and the first shielding member 62 is in contact with the second conductive shielding member 52, and the second shielding member 63 is in contact with the third conductive shielding member 53, and each shielding structure cooperates with each other to further improve the shielding effect of the signal terminal.

[0056] In this embodiment, a row of signal terminal pairs 20 corresponds to a second shielding member 63, and a second shielding member 63 has only one second shielding body 631. A second shielding body 631 is bent downward to extend a plurality of second shielding portions 632, and each second shielding portion 632 is used to shield a corresponding signal terminal pair 20. A second fixing groove 633 is provided between two adjacent second shielding portions 632. A second shielding portion 632 extends backward to have a second extension arm 6321, and the second extension arm 6321 extends leftward and rightward to have second elastic fingers 6322, respectively.

[0057] Of course, in other embodiments, a second shielding member 63 may have only one second shielding portion 632, and one second shielding portion 632 shields multiple signal terminal pairs 20, or multiple second shielding portions 632 connected together can be regarded as one second shielding portion 632, or a row of signal terminal pairs 20 corresponds to multiple second shielding members 63, and each second shielding member 63 corresponds to one or more signal terminal pairs 20.

[0058] like Figure 6 , Figure 7 and Fig.11 As shown, the grounding member 8 is located below the first shielding member 62 and the second shielding member 63, and includes a grounding body 81 and an elastic arm. Along the front-to-back direction, the grounding body 81 is located between two rows of signal terminal pairs 20, and the grounding body 81 includes a plurality of fixing portions 811 and a first elastic abutting portion 86 and a second elastic abutting portion 87 located between two adjacent fixing portions 811. The elastic arm includes a first elastic arm 82 extending forward from the fixing portion 811 and a second elastic arm 83 extending backward from the grounding body 81. The first elastic arm 82 and the second elastic arm 83 are both provided with a grounding contact portion 821 that elastically abuts against the circuit board. Each first elastic arm 82 has two third elastic abutment portions 88 extending forward, and a slot 89 opening forward is provided between the two third elastic abutment portions 88. The front ends of two adjacent first elastic arms 82 are connected by a first connecting portion 84, and the first connecting portion 84 has a first elastic abutment portion 86 extending forward. The rear ends of two adjacent second elastic arms 83 are connected by a second connecting portion 85, and the second connecting portion 85 has a second elastic abutment portion 87 extending backward. The first elastic abutment portion 86, the second elastic abutment portion 87 and the third elastic abutment portion 88 all abut downward against the circuit board, the first elastic abutment portion 86 abuts upward against the first elastic finger 6232, the second elastic abutment portion 87 abuts upward against the second elastic finger 6322, and the third elastic abutment portion 88 abuts upward against the first extension arm 6231.

[0059] Providing multiple elastic abutment parts can increase the contact points between the grounding member 8 and the docking element, and increase shielding in the left and right directions of the signal contact part 2331, further enhancing the shielding effect of the signal contact part 2331, improving crosstalk, and improving signal integrity. The setting of the slot 89 can separate the two third elastic abutment parts 88, and they will not affect each other when abutting with the docking element. Similarly, the slot 89 also separates the two first elastic abutment parts 86 adjacent to each other in the left and right directions, reducing the influence between each other.

[0060] The signal terminal pairs 20, the first shielding portion 623 and the second shielding portion 632 are arranged in four rows along the front-to-back direction, a second extension arm 6321 of the first row is accommodated in the spacing space 625, the second elastic finger 6322 on the first row second shielding portion 632 and the first elastic finger 6232 on the second row first shielding portion 623 are located between the two rows of signal terminal pairs 20, and the second elastic finger 6322 on the first row second shielding portion 632 is located behind the first elastic finger 6232 on the second row first shielding portion 623, the grounding body 81 is provided with a first elastic abutment portion 86 extending to the right and a second elastic abutment portion 87 extending to the left, the first elastic abutment portion 86 corresponds one-to-one to the first elastic finger 6232 on the second row first shielding portion 623, and the second elastic abutment portion 87 corresponds one-to-one to the second elastic finger 6322 on the first row second shielding portion 632.

[0061] A first elastic contact portion 86 on the first connecting portion 84 is simultaneously in contact with two first elastic fingers 6232 on a first shielding portion 623 in the first row, and two second elastic contact portions 87 on the second connecting portion 85 are respectively in contact with two second elastic fingers 6322 on a second shielding portion 632 in the second row. Along the front-to-back direction, the projection of the flare arm 23 overlaps with the projection of the first elastic contact portion 86 and the projection of the second elastic contact portion 87.

[0062] The first elastic abutment portion 86 extends to the right, the second elastic abutment portion 87 extends to the left, and the signal flare arm 23 extends along a first direction, and the first direction is perpendicular to the left-right direction. Therefore, on the docking surface with the circuit board, the first elastic abutment portion 86, the second elastic abutment portion 87 and the signal contact portion 2331 exert forces on the circuit board in different directions, so that the circuit board will not be offset due to these forces, and the abutment is more stable.

[0063] The grounding member 8 includes a first grounding member 8A and a second grounding member 8B. The first grounding member 8A is located below the first shielding member 62 of the first row and the second row, and the second grounding member 8B is located below the first shielding member 62 of the third row and the fourth row. The first grounding member 8A and the second grounding member 8B have the same structure. The first elastic arm 82 of the first grounding member 8A is located between two adjacent signal terminal pairs 20 in the first row, and the second elastic arm 83 of the first grounding member 8A is located between two adjacent signal terminal pairs 20 in the second row. The first elastic arm 82 of the second grounding member 8B is located between two adjacent signal terminal pairs 20 in the third row, and the second elastic arm 83 of the second grounding member 8B is located between two adjacent signal terminal pairs 20 in the third row. 3 is located between two adjacent signal terminal pairs 20 in the fourth row, the second connecting portion 85 of the first grounding member 8A and the first connecting portion 84 of the second grounding member 8B are located between the second-row signal terminal pairs 20 and the third-row signal terminal pairs 20, and the first elastic abutting portion 86 of the first connecting portion 84 of the second grounding member 8B is located between two adjacent second elastic abutting portions 87 of the second connecting portion 85 of the first grounding member 8A. In short, between the second-row signal terminal pairs 20 and the third-row signal terminal pairs 20, the first elastic abutting portion 86 of the second grounding member 8B is located between two adjacent second elastic abutting portions 87 of the first grounding member 8A.

[0064] like Figure 7 , Fig. 9 and Fig.11 As shown, there are multiple conductive strips 7, each conductive strip 7 includes a first conductive segment 71 located between two adjacent signal terminal pairs 20 in the first row, a second conductive segment 72 located between two adjacent signal terminal pairs 20 in the second row, and a joint segment 73 connecting the first conductive segment 71 and the second conductive segment 72. A limiting groove 331 is provided between two extension portions 33 belonging to different insulating members 3. The first conductive segment 71 and the second conductive segment 72 are accommodated in the limiting groove 331. The limiting groove 331 is located between the first fixing groove 626 and the second fixing groove 633. The first conductive segment 7 1 and the first fixed groove 626 and the second fixed groove 633 fixed in the first row, the second conductive segment 72 is fixed in the first fixed groove 626 and the second fixed groove 633 in the second row, the first conductive segment 71 includes two overlapping portions 711 and a matching portion 712 located between the two overlapping portions 711, the two overlapping portions 711 are in contact with the first elastic arm 82, the matching portion 712 is directly opposite to the grounding contact portion 821, and the matching portion 712 extends downward beyond the two overlapping portions 711, the second conductive segment 72 has the same structure as the first conductive segment 71, and the second conductive segment 72 matches the second elastic arm 83. The engaging segment 73 is positioned in the positioning groove 627, the lower surface of the engaging segment 73 is substantially flush with the lower surfaces of the two first extension arms 6231 forming the positioning groove 627, the lower surface of the engaging segment 73 and the lower surfaces of the two first extension arms 6231 form a welding surface 731, and the fixing portion 811 of the grounding member 8 is welded to the welding surface 731.

[0065] Each conductive strip 7 includes a first conductive segment 71, a second conductive segment 72 and a joining segment 73. A positioning groove 627 is formed between the two first extension arms 6231 to limit the first conductive segment 71 and the second conductive segment 72, so that one conductive strip 7 can simultaneously connect the first and second shielding portions 623 and 632 of the first and second rows and facilitate assembly. In addition, the lower surface of the joining segment 73 and the lower surfaces of the two first extension arms 6231 form a welding surface 731 that is welded to the grounding body 81. While fixing the grounding body 81, the grounding body 81 can also connect the two first extension arms 6231 and the joining segment 73 to improve the shielding effect.

[0066] In summary, the present invention has the following effects:

[0067] 1. The signal terminal is shielded in the front-to-back direction by setting the first shielding member 62 and the second shielding member 63, and the grounding member 8 is set below the first shielding member 62 and the second shielding member 63, and the grounding member 8 has a first elastic abutting portion 86 and a second elastic abutting portion 87 to abut the docking element downward, so that the shielding effect can be strengthened at the signal contact portion 2331. The first elastic abutting portion 86 abuts against the first elastic finger 6232 upward, and the second elastic abutting portion 87 abuts against the second elastic finger 6322 upward. That is to say, the grounding member 8 contacts the first shielding member 62 and the second shielding member 63 at multiple points, and the three are conductively connected to form multiple grounding loops, which further improves the signal terminal. On the other hand, the first elastic finger 6232 will give the first elastic abutting part 86 a downward elastic force, and the second elastic finger 6322 will give the second elastic part a downward elastic force, which makes the first elastic abutting part 86 and the second elastic abutting part 87 have better elastic force when they abut downward against the docking element, and the abutment with the docking element is more stable. The first elastic finger 6232 and the second elastic finger 6322 are distributed on the first shielding part 62 and the second shielding part 63, that is to say, the overall force given to the grounding part 8 by the first elastic finger 6232 and the second elastic finger 6322 will be dispersed in various parts of the grounding part 8, further making the abutment between the grounding part 8 and the docking element more stable.

[0068] 2. The first shielding portion 623 is provided with two first extension arms 6231, and the second shielding portion 632 is provided with a second extension arm 6321. The two first elastic fingers 6232 extend from the two first extension arms 6231 toward each other in the left and right directions respectively. The second extension arm 6321 is accommodated in the interval space 625 between the two first elastic fingers 6232. The second extension arm 6321 extends the second elastic fingers 6322 to the left and right respectively. This design can improve the space utilization rate between the second shielding portion 632 of the first row and the first shielding portion 623 of the second row, so that more elastic fingers are arranged in a limited space, so that the grounding member 8 has more contact points with the first shielding member 62 and the second shielding member 63. In addition, when the first elastic finger 6232 and the second elastic finger 6322 are in contact with the grounding member 8, the first extension arm 6231 and the second extension arm 6321 will extend the force arm length of the first elastic finger 6232 and the second elastic finger 6322, thereby making the first elastic finger 6232 and the second elastic finger 6322 more elastic.

[0069] 3. The front ends of the two first elastic arms 82 are connected by a first connecting portion 84, and a first elastic abutting portion 86 is extended forward from the first connecting portion 84. The rear ends of the two second elastic arms 83 are connected by a second connecting portion 85, and two second elastic abutting portions 87 are extended backward from the second connecting portion 85. This design makes it possible for the actual force arm length of the first elastic abutting portion 86 plus the length of the first elastic arm 82 to be added to the actual force arm length of the second elastic abutting portion 87 to be added to the length of the second elastic arm 83 when the first elastic abutting portion 86 and the second elastic abutting portion 87 abut against the docking element, thereby enhancing the elasticity of the first elastic abutting portion 86 and the second elastic abutting portion 87.

[0070] 4. The first elastic abutment portion 86 of the second grounding member 8B is located between the two adjacent second elastic abutment portions 87 of the first grounding member 8A, so that the first grounding member 8A and the second grounding member 8B cooperate with each other, so that a plurality of elastic abutment portions can be arranged between the second row of signal terminal pairs 20 and the third row of signal terminal pairs 20 of the grounding member 8, and a first elastic abutment portion 86 abuts against two first elastic fingers 6232 on a first shielding portion 623 at the same time, which can also increase the grounding loop of the grounding member 8 and the first shielding member 62, thereby improving the shielding effect.

[0071] 5. The conductive strip 7 is fixed between two adjacent signal terminal pairs 20 through the first fixing groove 626 and the second fixing groove 633, which can enhance the shielding of the signal terminal pairs 20 in the left and right directions and reduce the crosstalk between the two adjacent signal terminal pairs 20. The conductive strip 7 is electrically connected to the first shielding member 62 and the second shielding member 63, so that the conductive strip 7 and the first shielding member 62 and the second shielding member 63 are at the same potential, thereby enhancing the shielding effect.

[0072] The conductive strip 7 is provided with two overlapping portions 711 that contact the elastic arm of the grounding member 8, which can increase the grounding loop between the elastic arm of the grounding member 8 and the conductive strip 7 and reduce crosstalk. In addition, compared with the flat connection between the two overlapping portions 711, a matching portion 712 is provided that extends downward beyond the two overlapping portions 711, and after the grounding contact portion 821 contacts the docking element, the grounding contact portion 821 and the conductive strip 7 can be brought closer or even attached to each other, thereby further enhancing the shielding effect of the grounding member 8.

[0073] 6. By providing a first conductive shielding member 51, a second conductive shielding member 52 and a third conductive shielding member 53, each signal wiring portion 21 has conductive shielding members in a total of five directions, namely the front side, the upper side, the left and right sides, and the lower side or the rear side, so as to prevent the signal transmitted by the signal wiring portion 21 from being interfered with in as many directions as possible, and the second conductive shielding member 52 is connected to the first conductive shielding member 51, and the third conductive shielding member 53 is connected to multiple side panels 511, that is, the third conductive shielding member 53 and the second conductive shielding member 52 are connected to multiple first conductive shielding members 51, and the three are electrically interconnected, so that the overall shielding effect is better, and the signal integrity is further improved.

[0074] 7. The shielding layer 921, the wing 5111 and the third conductive shielding member 53 are connected by the conductive silver glue 922, which can increase the grounding loop and improve the shielding effect. In addition, the wing 5111 extends backward beyond the signal wiring part 21 to avoid the conductive silver glue 922 from contacting the signal wiring part 21, thereby preventing a short circuit.

[0075] The above detailed description is only an explanation of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector, characterized in that: include: case; A plurality of signal terminals are accommodated in the housing and arranged in a row along the left-right direction, wherein the signal terminals include a signal contact portion, and the signal contact portion is used to contact a docking element downward; A shielding member, comprising a first shielding member and a second shielding member located at both sides of the front and rear of the signal terminal, wherein the first shielding member comprises a first elastic finger, and the second shielding member comprises a second elastic finger; A grounding member is located below the first shielding member and the second shielding member, and the grounding member includes a first elastic abutment portion and a second elastic abutment portion, the first elastic abutment portion and the second elastic abutment portion abut against the docking element downward, the first elastic abutment portion abuts against the first elastic finger upward, and the second elastic abutment portion abuts against the second elastic finger upward.

2. The electrical connector according to claim 1, wherein: Two adjacent signal terminals form a signal terminal pair, there are multiple first shielding parts and multiple second shielding parts, a first shielding part and a second shielding part are respectively located at the front side and the rear side of a corresponding signal terminal pair, a first shielding part extends forward with two first extension arms, each first extension arm is provided with a first elastic finger, and a second shielding part extends backward with a second extension arm, each second extension arm is provided with two second elastic fingers.

3. The electrical connector according to claim 2, wherein: The signal terminal pairs are arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, the second shielding parts are arranged in at least two rows along the front-to-back direction, a first shielding part of the second row is provided with two first elastic fingers, the two first elastic fingers respectively extend from two first extension arms in the left-right direction toward each other, there is a spacing space between the two first elastic fingers on the same first shielding part, a second extension arm of the first row is accommodated in the spacing space, and the second extension arm has second elastic fingers extending to the left and right respectively.

4. The electrical connector according to claim 1, wherein: Two adjacent signal terminals form a signal terminal pair, there are multiple first shielding parts and second shielding parts, a first shielding part and a second shielding part are respectively located at the front side and the rear side of a corresponding signal terminal pair, the signal terminal pair is arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, and the second shielding parts are arranged in at least two rows along the front-to-back direction, the grounding member includes a grounding body located between the two rows of signal terminal pairs, a first elastic arm extending forward from the grounding body, and a second elastic arm extending backward from the grounding body, the grounding body is fixed to the first shielding member, the front ends of the two adjacent first elastic arms are connected by a first connecting part, the first connecting part extends forward with a first elastic abutting part, the rear ends of the two adjacent second elastic arms are connected by a second connecting part, and the second connecting part extends backward with a second elastic abutting part.

5. The electrical connector according to claim 4, characterized in that: The signal terminal pairs are arranged in four rows along the front-to-back direction, the first shielding parts are arranged in four rows along the front-to-back direction, and the second shielding parts are arranged in four rows along the front-to-back direction. The grounding member includes a first grounding member and a second grounding member, the first grounding member is located below the first shielding members in the first row and the second row, and the second grounding member is located below the first shielding members in the third row and the fourth row. The first connecting part extends forward with a first elastic abutting portion, and the second connecting part extends backward with two second elastic abutting portions. The first elastic abutting portion of the second grounding member is located between two adjacent second elastic abutting portions of the first grounding member. A first shielding part is provided with two first elastic fingers, and a second shielding part is provided with two second elastic fingers. A first elastic abutting portion abuts against the two first elastic fingers on a first shielding part at the same time, and the two second elastic abutting portions abut against the two second elastic fingers on a second shielding part respectively.

6. The electrical connector according to claim 1, wherein: It includes a plurality of conductive strips, which are located between two adjacent signal terminals. The grounding member includes a grounding body extending in the left-right direction and a plurality of elastic arms extending from the grounding body in the front-to-back direction. The elastic arms are in contact with the conductive strips. The elastic arms have a grounding contact portion, which is located on the left and right sides of the signal contact portion. The grounding body includes a plurality of fixed portions and a first elastic abutting portion and / or a second elastic abutting portion located between two adjacent fixed portions. The fixed portion is fixed to the conductive strip, and the first elastic abutting portion and / or the second elastic abutting portion extend in the left-right direction.

7. The electrical connector according to claim 6, wherein: The conductive strip includes two overlapping portions and a matching portion located between the two overlapping portions, the two overlapping portions are in contact with an elastic arm, the matching portion is directly opposite to the grounding contact portion, and the matching portion extends downward beyond the two overlapping portions.

8. The electrical connector according to claim 1, wherein: Two adjacent signal terminals form a signal terminal pair, a conductive strip is provided between the two adjacent signal terminal pairs, there are multiple first shielding parts and multiple second shielding parts, a first shielding part and a second shielding part are respectively located at the front side and the rear side of a corresponding signal terminal pair, a first fixing groove is provided between the two adjacent first shielding parts, and a second fixing groove is provided between the two adjacent second shielding parts, and the conductive strip is fixed in the first fixing groove and the second fixing groove and connects the first shielding part and the second shielding part.

9. The electrical connector according to claim 8, wherein: The signal terminal pairs are arranged in at least two rows along the front-to-back direction, the first shielding parts are arranged in at least two rows along the front-to-back direction, a conductive strip includes a first conductive segment located between two adjacent signal terminal pairs in the first row, a second conductive segment located between two adjacent signal terminal pairs in the second row, and a joining segment connecting the first conductive segment and the second conductive segment, the first shielding parts of the second row extend forward with a first extension arm, each first extension arm is provided with a first elastic finger, a positioning groove is provided between two adjacent first extension arms belonging to different first shielding parts, the positioning groove is connected to the first fixing groove, the joining segment is positioned in the positioning groove, and the lower surface of the joining segment and the lower surfaces of the two first extension arms form a welding surface, the grounding component includes a grounding body extending in the left-right direction, a plurality of first elastic arms extending forward from the grounding body, and a plurality of second elastic arms extending backward from the grounding body, the grounding body is welded to the welding surface, the first elastic arm contacts the first conductive segment, and the second elastic arm contacts the second conductive segment.

10. The electrical connector according to claim 9, characterized in that: The first elastic arm extends forward to form two third elastic abutment parts, and a slot opening forward is provided between the two third elastic abutment parts. The third elastic abutment part abuts against the first extension arm upward and abuts against the docking element downward.

11. The electrical connector according to claim 1, wherein: Two adjacent signal terminals form a signal terminal pair, and the signal terminal pairs are arranged in at least two rows along the front-to-back direction. The signal terminal includes a signal main body and a signal flare arm, and the signal flare arm extends along a first direction, and the first direction is perpendicular to the left-to-right direction. The signal contact portion is provided on the signal flare arm, and the signal contact portion elastically abuts against the docking element downward. The grounding member includes a grounding main body located between the two rows of signal terminal pairs, and the grounding main body is provided with a first elastic abutting portion extending to the right and a second elastic abutting portion extending to the left. Along the front-to-back direction, the projection of the signal flare arm overlaps with the projection of the first elastic abutting portion and the projection of the second elastic abutting portion.

12. An electrical connector, characterized in that: include: case; A plurality of signal terminal pairs are accommodated in the housing and arranged in a row along the front-to-back direction, each signal terminal pair includes two signal terminals, each of the signal terminals includes a signal contact portion, and the signal contact portion contacts a docking element downwardly; a plurality of shielding members located at the front and rear sides of the signal terminal pair, the shielding members including elastic fingers; The grounding member is located below the shielding member, and includes a plurality of elastic abutting portions, the elastic abutting portions are located at the front and rear sides of the signal contact portion, the elastic abutting portions abut against the docking element downwards, and the elastic abutting portions abut against the elastic fingers upwards.

13. The electrical connector according to claim 12, wherein: It comprises a plurality of conductive strips, the conductive strips are located at the left and right sides of the signal terminal pair, the grounding member comprises a fixing portion and an elastic contact portion extending leftward or rightward from the fixing portion, and the fixing portion is fixed to the conductive strips.

14. The electrical connector according to claim 13, wherein: The fixing portion has an elastic arm extending forward or backward, the elastic arm is provided with a grounding contact portion, the conductive strip includes two overlapping portions and a matching portion located between the two overlapping portions, the two overlapping portions are in contact with the elastic arm, the matching portion is opposite to the grounding contact portion, and the matching portion extends downward beyond the two overlapping portions.

15. The electrical connector according to claim 12, wherein: The shielding member includes a first shielding member and a second shielding member located on the front and rear sides of the signal terminal pair, and a first shielding member and a second shielding member are provided between two adjacent signal terminal pairs. The first shielding member has two first extension arms extending forward, and each first extension arm is provided with a first elastic finger. A second shielding member has a second extension arm extending backward, and each second extension arm is provided with two second elastic fingers. The two first elastic fingers extend toward each other in the left and right directions respectively from the two first extension arms, and there is a spacing space between the two first elastic fingers. A second extension arm is accommodated in the spacing space, and the second extension arm has second elastic fingers extending to the left and right respectively.

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