TW202406235A - Electrical connector assembly - Google Patents

Abstract

An electrical connector assembly for mounting to a printed circuit board, comprising: an insulative housing; a contact module received in the insulative housing and including: an upper part and a lower part stacked with each other in the vertical direction, the upper part includes a first contact module and a second contact module stacked with each other in a vertical direction, The lower part includes a third contact module and a fourth contact module stacked with each other in a vertical direction, each of the first contact module, the second contact module, the third contact module and the fourth contact module include an insulator and a plurality of conductive contacts held in the insulator, wherein further includes a metal member, the metal member fixes the first contact module, the second contact module, the third contact module and the fourth contact module as a whole.

Description

Electrical connector components

The present invention relates to an electrical connector assembly, and in particular to an electrical connector assembly that is suitable for transmitting high-speed signals and is easy to assemble.

U.S. Patent No. 10367308B2 discloses an electrical connector assembly, which includes an insulating housing and a terminal module contained in the insulating housing. The terminal module includes an upper part and a lower part. The upper part includes a first terminal module and a a second terminal module below the first terminal module, the lower module including a third terminal module and a fourth terminal module disposed between the second terminal module and the third terminal module, each of which The terminal modules are not held together in the lateral direction, making it inconvenient for modular assembly of the terminal modules. Therefore, it is necessary to improve the aforementioned electrical connector assembly to solve the deficiencies in the prior art.

The technical problem to be solved by the present invention is to provide an electrical connector assembly that is convenient for transmitting high-speed signals and is easy to assemble.

In order to achieve the above object, the present invention can adopt the following technical solutions:

An electrical connector assembly that can be used for mounting on a printed circuit board. The electrical connector assembly includes: an insulating shell; and a terminal module. The terminal module is accommodated in the insulating shell. The terminal module includes An upper part and a lower part are stacked on each other in the vertical direction. The upper part includes a first terminal module and a second terminal module stacked on each other in the vertical direction. The lower part includes a third terminal module stacked on each other in the vertical direction. A terminal module and a fourth terminal module. The first terminal module, the second terminal module, the third terminal module and the fourth terminal module all include an insulator and a plurality of conductive terminals fixed in the insulator. ; Wherein, it further includes a metal piece that fixes the first terminal module, the second terminal module, the third terminal module and the fourth terminal module into one body.

In order to achieve the above object, the present invention can also adopt the following technical solutions:

An electrical connector assembly that can be installed on a printed circuit board. The electrical connector assembly includes: an insulating shell, the insulating shell is provided with a front mating groove and a rear receiving space for accommodating the terminal module; the terminal module The terminal module is housed in the insulating shell. The terminal module includes an upper part and a lower part that are stacked on each other in the vertical direction. Both the upper part and the lower part include an insulator and are fixed on the insulator. A plurality of terminals, the terminals including a plurality of bypass terminals and differential pair terminals located on both sides of the bypass terminal in the lateral direction, the bypass terminal being used to be directly mounted on the printed circuit board; and Cables, the cables are respectively mechanically and electrically connected to the corresponding differential pair terminals; further comprising a metal piece, the metal piece fixes the upper part and the lower part as one body.

Compared with the prior art, the advantage of the present invention is that the upper and lower terminal modules of the electrical connector assembly of the present invention are fixed together through metal parts, making the electrical connector assembly of the present invention compact and easy to assemble. simple.

Please refer to Figures 1 to 19 together, which shows a socket assembly 900 in accordance with the present invention, which can be mounted on a printed circuit board (not shown). The socket assembly 900 includes a metal shell 100 and an electrical connector assembly 200 that can be received in the metal shell 100 . The electrical connector assembly 200 can cooperate with a mating electrical connector (not shown) in the front-to-back direction. The electrical connector assembly 200 includes an insulating housing 30 , a terminal module 40 received in the insulating housing 30 , and a cable 50 connected to the terminal module 40 and extending rearwardly out of the insulating housing 30 .

The insulating shell 30 includes an upper wall 31 , a lower wall 32 arranged oppositely, and two side walls 33 connecting the upper wall 31 and the lower wall 32 . The upper wall 31 extends rearwardly longer than the other walls. The insulating housing 30 is provided with a front fitting groove 301 and a rear receiving space 302 for receiving the terminal module 40 . The terminal module 40 is received in the rear receiving space 302 of the insulating housing 30 from the back to the front. The front mating groove 301 can receive the mating tongue of the mating connector.

The metal shell 100 includes a top wall 11 , a bottom wall 12 and a side wall 13 connecting the bottom wall 12 and the top wall 11 . A bottom opening 121 is provided on the rear side of the bottom wall 12 of the metal housing 100 to facilitate the installation of the electrical connector assembly 200 in the metal housing 100 from bottom to top. The metal shell 100 includes a receiving space 101 with a front opening surrounded by the walls. The electrical connector assembly 200 is received at the rear of the receiving space 101 . The receiving space 101 of the metal shell 100 and the front mating groove 301 are connected front and rear, so that the mating tongue plate of the mating connector can be inserted into the front mating groove 301 from front to back to mate with the electrical connector assembly 200 .

The electrical connector assembly 200 and the metal shell 100 are positioned and fixedly connected to each other in the up and down, left and right, and front and rear directions, so that they can be installed on the circuit board together. Specifically, in the present invention, the side wall 33 of the insulating housing 30 is provided with a holding groove 331 , and the side wall 13 of the metal housing 100 is provided with an elastic piece 131 that elastically abuts and cooperates with the holding groove 331 . The elastic piece 131 is integrally stamped from the metal shell 100 and freely extends from bottom to top in a direction close to the side wall 33 of the insulating shell 30 . The upper end of the elastic piece 131 resists the top of the holding groove 331 to position the insulating shell 30 and the metal shell 100 in the left-right and downward directions. The size of the elastic piece 131 along the front and rear direction matches the size of the holding groove 331 along the front and back direction, so as to position the insulating shell 30 and the metal shell 100 in the front and rear direction. The side wall 13 of the metal shell 100 further includes a second elastic piece 132 that resists the bottom surface of the rear area of the upper wall 31 of the insulating shell 30 . The second elastic piece 132 and the upper wall 31 position the insulating shell 30 and the metal shell 100 in a downward direction. The top wall 11 of the metal shell 100 is provided with a tab 111 that is bent downward and protrudes into the receiving space 101 . The upper wall 31 of the insulating shell 30 is provided with a gap 311 for receiving the tab 111 . When the electrical connector assembly 200 and the metal housing 100 are assembled together, the bottom of the tab 111 extends downward to stop at the bottom of the gap 311 . In the present invention, the gaps 311 are provided as a pair, which are spaced apart along the transverse direction. The matching gap between the tab 111 and the gap 311 in the front-rear direction is no more than 0.05 mm. The tabs 111 and the gaps 311 cooperate with each other to position the insulating housing 30 and the metal housing 100 in the front-rear direction, the left-right direction, and the upward direction.

The terminal module 40 includes an upper part 401 and a lower part 402 that are stacked on each other in the vertical direction. The upper part 401 and the lower part 402 each include a differential pair terminal module 404 and a bypass terminal module 405. The differential pair terminal module 404 of the upper part 401 includes a first terminal module 411 and a second terminal module 421 disposed below the first terminal module 411. The lower differential pair terminal module includes a third terminal module. group 431 and a fourth terminal module 441 disposed above the third terminal module 431 . The first terminal module 411 and the second terminal module 421 are stacked on each other in the vertical direction. The third terminal module 431 and the fourth terminal module 441 are stacked on each other in the vertical direction. The first terminal module 411 , the second terminal module 421 , the third terminal module 431 and the fourth terminal module 441 each include an integrated insulator 412 and a plurality of conductive terminals fixed on the corresponding insulator 412 . The conductive terminals include differential pair terminals 413 capable of transmitting differential signals and ground terminals 414 alternately arranged with the differential pair terminals 413 in the lateral direction.

The bypass terminal module 405 includes a plurality of bypass terminals 455 . The bypass terminal 455 and the differential pair terminal 413 are assembled on the insulator 412 in different ways. Specifically, in the present invention, the differential pair terminal 413 and the ground terminal 414 are integrally formed on the insulator 412 , and the bypass terminal 455 is assembled on the insulator 412 . The bypass terminal 455 , the differential pair terminal 413 and the ground terminal 414 each include a deflectable mating portion 406 at the front for mating with a mating connector. The ground terminal 414 further includes tail portions 407 that are mechanically and electrically connected to the corresponding cables 50 respectively, and the differential pair terminal 413 further includes tail portions 408 that are mechanically and electrically connected to the corresponding cables 50 respectively. The bypass terminal 455 also includes a bypass tail 409 that can be mounted directly on the printed circuit board. The terminals in the differential pair terminal module 404 are coupled from narrow side to narrow side in the lateral direction, and the bypass terminals of the bypass terminal module 405 are coupled from wide side to wide in the lateral direction. edge coupling.

The settings of the four terminal modules are roughly the same. Here, the first terminal module 411 is taken as an example to introduce in detail. The insulator 412 includes a middle portion 452 and a pair of insulators located in the middle portion 452 in the lateral direction. Side 453. The differential pair terminals 413 and the ground terminals 414 are divided into two groups, and each group includes two pairs of differential pair terminals 413 and three ground terminals 414 arranged alternately. Two sets of terminals are provided on corresponding side portions, and the insulator 412 is integrally formed with the two sets of terminals on both sides. The bypass terminal 455 is assembled in the middle portion 452 . In this way, in the transverse direction, the two groups of terminals are located on both sides of the bypass terminal 455 respectively. The ground terminals 414 of each group of terminals are connected together by a transversely extending horizontal bar 418 provided in front of the tail portion 407 of the ground terminal 414 . The horizontal bar 418 and the ground terminal 414 are integrally stamped.

The bypass terminal module 405 includes an upper bypass sub-module 560 located in the upper part 401 and a lower bypass sub-module 570 located in the lower part 402 . The upper bypass sub-module 560 includes a plurality of upper terminal sheets 561 stacked in a transverse direction, and the lower bypass sub-module 570 includes a plurality of lower terminal sheets 571 stacked in a transverse direction. Each of the upper terminal sheets 561 includes an upper bypass terminal 562 and a lower bypass terminal 563 arranged up and down, and an upper fixing part 566 integrally formed on the upper bypass terminal 562 and the lower bypass terminal 563 . Each of the lower terminal sheets 571 includes an upper bypass terminal 572 and a lower bypass terminal 573 arranged up and down, and a lower fixing part 576 integrally formed on the upper bypass terminal 572 and the lower bypass terminal 573 . In the present invention, both the upper bypass sub-module 560 and the lower bypass sub-module 570 include five terminal sheets. The upper wall 31 of the insulating housing 30 is provided with a plurality of guide grooves 316 . Each upper fixing part 566 is provided with a guide rib 567 that is received in the corresponding guide groove 316 when assembled.

The upper bypass terminal 562 and the lower bypass terminal 563 located in the one upper fixing member 566 are jointly assembled in the first terminal module 411 , the second terminal module 421 and the fourth terminal module Group 441 of three insulators 412 . The upper bypass terminal 572 and the lower bypass terminal 573 located in one of the lower fixing parts 576 are jointly assembled in the second terminal module 421 , the third terminal module 431 and the fourth terminal module 441 of three insulators 412. Specifically, the lower bypass terminal 573 located in the lower fixing member 576 includes an insert 575 assembled in the insulator 412 of the third terminal module 431, and the upper bypass terminal 572 includes an insert 575 assembled upwardly on all the insulators. The fourth terminal module 441 and the insert piece 578 of the insulator 412 of the second terminal module 421. One of the upper bypass terminals 562 located in the upper fixing member 566 includes a blade 565 assembled downwardly in the insulator 412 of the first terminal module 411 , and one of the lower bypass terminals 563 includes a downwardly mounted insert 565 . The insert piece 568 is jointly installed on the insulator 412 of the second terminal module 421 and the fourth terminal module 441 .

The deflectable mating portion 406 of the differential pair terminal 413 of the first terminal module 411 is located in front of the mating portion 406 of the differential pair terminal 413 of the second terminal module 421 . The deflectable mating portion 406 of the differential pair terminal 413 of the third terminal module 431 is located in front of the mating portion 406 of the differential pair terminal 413 of the fourth terminal module 441 . The front butt portions 406 of each terminal of the first terminal module 411 and the third terminal module 431 are located on the upper and lower sides of the front mating groove 301 to form the first mating area 1 . The front butt portion 406 of each terminal of the fourth terminal module 441 and the second terminal module 421 forms the second mating area 2 . The first fitting area 1 is located in front of the second fitting area 2 . The butt portions 406 of the upper bypass terminals 562 are arranged in a row in the transverse direction and are aligned with the butt portions 406 of the conductive terminals of the first terminal module 411 in the transverse direction. The butt portions 406 of the circuit terminals 563 are arranged in a row in the transverse direction and are aligned with the butt portions 406 of each conductive terminal of the second terminal module 421 in the transverse direction. Similarly, the butt portions 406 of the upper bypass terminals 572 of the lower portion are arranged in a row and aligned with the butt portions 406 of each conductive terminal of the fourth terminal module 441 in the lateral direction. The butt portions 406 of the bypass terminals 573 are arranged in a row and aligned with the butt portions 406 of each conductive terminal of the third terminal module 431 in the lateral direction. Two rows of channels 119 are provided on both sides of the front fitting groove 301 of the insulating housing 30 . The docking portions 406 of the first terminal module 411 and the third terminal module 431 can be deflected into corresponding channels 119 respectively. Grooves 333 are provided on the inner sides of the two side walls 33 of the insulating shell 30 . The insulator 412 is provided with a protrusion 403 that cooperates with the groove 333 and positions the terminal module 40 in the up and down, left and right directions.

The terminal module 40 also includes a metal piece 460 . The metal piece 460 fixes the upper part 401 and the lower part 402 as one body, so that the terminal module 40 forms a whole body for easy assembly into the insulating housing 30 . The metal piece 460 includes two side walls 461 and a bottom wall 462 connecting the rear portions of the two side walls 461 . The side wall 461 of the metal member 460 is provided with a plurality of elastic pieces 464 protruding outward to engage with the insulating shell 30 , a plurality of upwardly extending tabs 466 and a plurality of downwardly extending tabs 466 for mounting to the insulating shell 30 . Mounting pins 465 for the printed circuit board. There is a space 467 between the protrusions 466 . A plurality of spaced apart and outwardly protruding fixing blocks 415 are provided on the outer side wall 33 of each insulator 412 . An installation gap 416 is formed between the fixing block 415 and the outer side wall of the insulator 412 . The fixing block 415 is received in the corresponding space 467 . The tab 466 is retained within the mounting gap 416 . The fixing blocks 415 on the first terminal module 411 and the third terminal module 431 are aligned up and down and accommodated in the same space 467. The second terminal module 421 and the fourth terminal The fixing blocks 415 of the module 441 are aligned up and down and received in the same space 467 . The bottom wall 462 of the metal piece 460 is provided with an opening 468, and the upper bypass terminal 562 can be installed on the circuit board through the opening 468. The two outermost upper fixing members 566 of the bypass terminal module 405 are positioned on both sides of the opening 468 in the transverse direction. The elastic piece 464 is received in the corresponding coupling groove 334 of the insulating housing 30 to retain the terminal module 40 in the insulating housing 30 . The metal piece 460 is formed by stamping and bending in one piece.

The electrical connector assembly 200 further includes a cable 50 for integrally fixing the corresponding cables 50 of the first terminal module 411 , the second terminal module 421 , the third terminal module 431 and the fourth terminal module 441 . Forming block 501. The molding block 501 is integrally formed on the cable 50 on the corresponding side.

The terminal module 40 further includes a metal grounding member 470 . Taking the first terminal module 411 as an example, the metal grounding pieces 470 on other terminal modules are all arranged the same. The tail portion 407 of the ground terminal 414 and the tail portion 408 of the differential pair terminal 413 are staggered in the up-down direction and the front-rear direction so as to be connected to the metal ground piece. Specifically, in the present invention, the metal grounding member 470 includes a flat plate portion 471 and a pair of connecting walls 472 extending perpendicularly to the flat plate portion 471 from both sides of the flat plate portion 471 . The cable 50 includes a pair of inner conductors 510 , an inner insulation layer 520 covering the inner conductors 510 , and a metal shielding layer 530 covering the inner insulation layer 520 . The pair of inner conductors 510 are soldered to the tails 408 of the corresponding differential pair terminals 413 . The cable 50 is vertically located between the horizontal bar 418 and the flat plate portion 471 of the ground terminal 414 , and the differential pair terminal 413 and the horizontal bar 418 are located vertically. the same side of the cable 50 . The flat plate portion 471 covers the exposed area of the metal mask layer 530 . The connecting wall 472 is provided with an opening 474 , and both sides of the horizontal bar 418 are provided with protrusions 419 that protrude outward and extend into the opening 474 . The tail portion 407 of the ground terminal 414 extends rearward beyond the tail portion 408 of the differential pair terminal 413 , and the tail portion 407 of the ground terminal 414 extends vertically to the flat plate portion 471 and is mechanically connected to the flat plate portion 471 get in touch with. The flat plate portion 471 includes an opening 475 penetrating the flat plate portion 471 and an elastic piece 476 integrally formed from the flat plate portion. The opening 475 corresponds to the tail portion 407 of the corresponding ground terminal 414 in the up and down direction. The metal ground piece 470 is directly welded to the tail portion 407 of the ground terminal 414 through the opening 475 . The elastic piece 476 corresponds to the corresponding metal mask layer 530 in the up and down direction. The elastic piece 476 elastically abuts the metal shielding layer 530 so that the metal shielding layer 530 is mechanically and electrically connected to the metal grounding member 470 . The metal ground piece 470 connects the metal shield layer 530 and the ground terminal 414 in series, which has better anti-interference and grounding effects and improves the signal transmission rate of the connector assembly.

A method of manufacturing the electrical connector assembly 200, which includes the following steps: providing the insulating housing 30, which is provided with a front mating groove 301 and a rear receiving space 302 for receiving the terminal module 40; providing the differential pair terminal 413; provide the insulator 412, and integrally mold the insulator 412 and the differential pair terminal 413 to form the differential pair terminal module 404; provide the bypass terminal 455, and integrate the bypass terminal 455 Assembled to the insulating member 451 to form the upper portion 401 . The lower part 402 corresponding to the upper part 401 is provided; the upper part 401 and the lower part 402 are stacked on each other in the vertical direction to form the terminal module 40; and the terminal module 40 is assembled on the The insulating housing 30 is formed into the electrical connector assembly 200 .

The electrical connector assembly 200 of the present invention assembles the differential pair terminals and the bypass terminals to the insulator 412 in different ways to facilitate production and manufacturing, and fixes the terminal module in the lateral direction through the insulator 412. Integrated, making the structure more solid and stable.

The electrical connector assembly 200 of the present invention uses metal parts 460 to fix the terminal module 40 as a whole, making the electrical connector assembly 200 more compact and easy to assemble.

The socket assembly 900 of the present invention can be installed on the circuit board together by firmly connecting the electrical connector assembly and the metal shell.

The tail portion of the ground terminal of the electrical connector assembly 200 of the present invention and the tail portion of the signal terminal pair are staggered in the up-down direction and the front-rear direction so as to be connected to the metal ground piece.

The electrical connector assembly 200 of the present invention complies with the QSFP-DD specification, which defines eight transmitting channels and eight receiving channels, and the signal transmission rate of each channel can reach 50Gbps and above. Of course, the present invention can also be applied to high-speed electrical connectors that transmit high speeds such as SFP-DD, SFP, OSFP and the like.

900: Socket assembly 441: Fourth terminal module 100: Metal shell 412: Insulator 200: Electrical connector assembly 413: Differential pair terminals 30: Insulating shell 414: Ground terminal 40:Terminal module 455:Bypass terminal 50: Cable 406: docking part 31: Upper wall 409: Bypass tail 32: Lower wall 407, 408: Tail 33: Side wall 452: Middle part 301: Front fitting groove 453: Side 302: Rear containment space 418: Horizontal bars 11: Top wall 560: Upper bypass sub-module 12: Bottom wall 570: Lower bypass sub-module 13: Side wall 561: Upper terminal sheet 121: Bottom opening 571: Lower terminal sheet 101: Containment space 562, 572: Upper bypass terminal 331: Holding slot 563, 573: Lower bypass terminal 131:Shrapnel 566:Upper fixing piece 132: Second shrapnel 576: Lower fixing piece 111: Tab 316: Guide groove 311: Gap 567: Guide rib 401: Upper part 575, 578, 565, 568: Insert piece 402: Lower part 1: First cooperation area 404: Differential pair terminal module 468: Opening 405: Bypass terminal module 501: Forming block 411: First terminal module 470: Metal grounding piece 421: Second terminal module 471: Flat plate part 431:Third terminal module 472:Connecting wall 2: Second matching area 474: Opening 119: Channel 419: Projection 333: Groove 510: Inner conductor 403: Bump 520: Inner insulation layer 460: Metal mask 530: Metal mask layer 461:Side wall 475:Opening 462: Bottom wall 476: Shrapnel 464: Shrapnel 465: Installation feet 466: Tab 415: Fixed block 467: Space 416: Installation gap

The first figure is a perspective view of a socket assembly according to the present invention. The second figure is a perspective view of the socket assembly shown in the first figure from another perspective. The third figure is a perspective view of the electrical connector assembly of the socket assembly shown in the second figure. The fourth figure is a perspective view of the electrical connector assembly shown in the third figure from another perspective. The fifth figure is an exploded view of the electrical connector assembly shown in the third figure. The sixth figure is an exploded view of the electrical connector assembly shown in the fifth figure from another perspective. The seventh figure is an exploded view of the terminal module of the electrical connector assembly shown in the third figure. Figure 8 is an exploded view of the terminal module shown in Figure 7 with the bypass terminal module removed. Figure 9 is an exploded view from another perspective of the terminal module shown in Figure 8 with the bypass terminal module removed. The tenth figure is a perspective view of the bypass terminal module of the terminal module shown in the third figure. Figure 11 is a perspective view of a bypass terminal module located at the upper and lower parts respectively of the bypass terminal module shown in Figure 10 . Figure 12 is a front view of a bypass terminal module located at the upper and lower parts respectively as shown in Figure 11. Figure 13 is an exploded view of a bypass terminal module located at the upper and lower parts shown in Figure 11 Figure 14 is a partially exploded view of the differential pair terminal module of the terminal module shown in Figure 7 . Figure 15 is a further exploded view of the differential pair terminal module shown in Figure 14. Figure 16 is an exploded view of the upper part of the differential pair terminal module shown in Figure 15. Figure 17 is an exploded view of the first terminal module of the differential pair terminal module shown in Figure 16 . Figure 18 is an exploded view of the second terminal module of the paired terminal module shown in Figure 16 . Figure 19 is a cross-sectional view along the XIX-XIX direction of the electrical connector assembly shown in Figure 3.

without

415: Fixed block

416: Installation gap

460:Metal cover parts

461:Side wall

462:Bottom wall

464:Shrapnel

465:Installation feet

466: Tab

467:Space

Claims (10)

An electrical connector assembly that can be used for mounting on a printed circuit board, the electrical connector assembly includes: insulating enclosure; and Terminal module, the terminal module is received in the insulating housing, the terminal module includes an upper part and a lower part stacked on each other in the vertical direction, the upper part includes first terminals stacked on each other in the vertical direction module and a second terminal module, the lower part includes a third terminal module and a fourth terminal module stacked in the vertical direction, the first terminal module, the second terminal module, the third terminal Both the module and the fourth terminal module include an insulator and a plurality of conductive terminals fixed in the insulator; The method further includes a metal piece that fixes the first terminal module, the second terminal module, the third terminal module and the fourth terminal module into one body. The electrical connector assembly according to claim 1, wherein the insulating shell includes an upper wall, a lower wall and two side walls connecting the upper wall and the lower wall that are oppositely arranged, and the length of the upper wall extending rearward is longer than that of the other walls. wall. The electrical connector assembly according to claim 2, wherein the metal piece is a one-piece structure, and the metal piece includes two side walls and a bottom wall connecting the rear portions of the two side walls. The electrical connector assembly as claimed in claim 1, wherein the metal piece is provided with a number of elastic pieces protruding outward to engage with the insulating shell and a number extending downward for mounting to the printed circuit board. of mounting feet. The electrical connector assembly according to claim 3, wherein a plurality of fixed blocks arranged at intervals and protruding outward are provided on the outer wall of each insulator, and a mounting block is formed between the fixed blocks and the outer wall. A gap, the side wall of the metal piece is provided with a plurality of upwardly extending lugs and a space between the lugs, the fixing block is received in the corresponding space, and the lugs are held in the gap . The electrical connector assembly according to claim 5, wherein the fixing blocks of the first terminal module and the third terminal module are accommodated in the same space, and the second terminal module The fixed block of the fourth terminal module is housed in the same space. The electrical connector assembly according to claim 1, wherein grooves are provided on the inner sides of both side walls of the insulating housing, and the insulator is provided with a terminal module that matches the grooves and positions the terminal module in the up, down, left and right directions. of bumps. The electrical connector assembly according to claim 1, further comprising a cable connected to the corresponding conductive terminal, the upper part and the lower part further including a plurality of terminal sheets, each of the terminal sheets includes A fixing piece and a bypass terminal integrally formed with the fixing piece. The bypass terminal is used to be directly installed on the printed circuit board. A plurality of guide grooves are provided on the upper wall of the insulating shell. The fixing member is provided with guide ribs that are accommodated in the corresponding guide grooves during assembly. The electrical connector assembly according to claim 8, wherein an opening is provided on the bottom wall of the metal piece, the bypass terminal is installed on the circuit board through the opening, and the fixing member is positioned in a transverse direction on both sides of the opening. An electrical connector assembly that can be used for mounting on a printed circuit board, the electrical connector assembly includes: An insulating shell, the insulating shell is provided with a front fitting groove and a rear receiving space for accommodating the terminal module; Terminal module, the terminal module is accommodated in the insulating shell, the terminal module includes an upper part and a lower part stacked on each other in the vertical direction, the upper part and the lower part both include an insulator and are fixed on the A plurality of terminals of the insulator, the terminals including a plurality of bypass terminals and differential pair terminals located on both sides of the bypass terminal in a lateral direction, the bypass terminals are used to be directly mounted on the printed circuit board ;and Cables, the cables are mechanically and electrically connected to the corresponding differential pair terminals respectively; Wherein, it further includes a metal piece that fixes the upper part and the lower part into one body.