CN110021839B

CN110021839B - Socket connector assembly

Info

Publication number: CN110021839B
Application number: CN201910012982.9A
Authority: CN
Inventors: 特伦斯·F·李托
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2018-01-06
Filing date: 2019-01-07
Publication date: 2021-11-19
Anticipated expiration: 2039-01-07
Also published as: CN110021839A

Abstract

The invention discloses a socket connector assembly which is suitable for being fixed in a shell and comprises an insulating body, a plurality of terminals and cables, wherein the terminals and the cables are accommodated in the insulating body, the insulating body comprises a front end and a rear end, the front end and the rear end are provided with butt joint ports for inserting butt joint plugs, the terminals comprise at least one pair of first terminals for transmitting grounding signals, at least one pair of second terminals for transmitting high-speed differential signals and at least one pair of third terminals for transmitting low-speed signals, the cables comprise a plurality of first cables and at least one second cable, the first cables are electrically connected with the at least one pair of second terminals in a first mode, and the at least one second cable is electrically connected with the at least one third terminal in a second mode different from the first mode.

Description

Socket connector assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector assembly, and more particularly to a double-sided receptacle connector electrically connected to an external pluggable module or a receptacle connector directly connected to an adaptive cable assembly.

[ background of the invention ]

The conventional design is to connect the two subsystems through a QSFP socket connector located in the housing and mounted on the circuit board. However, conventional designs suffer from several drawbacks. First, most receptacle connectors are of the horizontal right angle type, which makes signal integrity difficult to fine tune. Second, most of the receptacle connectors are surface mount type, which provides 76 terminal tail coplanarity issues. Third, for the stacked type socket connector, 152 terminals provided with respective through holes are provided. It is another challenge to make such dense arrangements of vias on a circuit board. Fourth, in the stacked type socket connector, since the terminals of both the upper and lower socket connectors need to extend down to the circuit board on which the lower socket connector is mounted, and the cooled air has a weak ability to penetrate in the front-rear direction, the heat dissipation of the lower socket connector is another problem.

Therefore, there is a need for a new QSFP connector device that has relatively easy manufacturability and excellent heat dissipation effect.

[ summary of the invention ]

The invention mainly aims to provide a socket connector assembly which is easy to manufacture and has good heat dissipation effect.

In order to solve the technical problems, the invention adopts the following technical scheme: a socket connector assembly is suitable for being fixed in a shell and comprises an insulating body, a plurality of terminals and cables, wherein the terminals and the cables are contained in the insulating body, the insulating body comprises a front end and a rear end, the front end and the rear end are provided with butt joint ports for inserting butt joint plugs, the terminals comprise at least one pair of first terminals for transmitting grounding signals, at least one pair of second terminals for transmitting high-speed differential signals and at least one pair of third terminals for transmitting low-speed signals, the cables comprise a plurality of first cables and at least one second cable, the first cables are electrically connected with the at least one pair of second terminals in a first mode, and the at least one second cable is electrically connected with the at least one third terminal in a second mode different from the first mode.

The cable in the invention is directly connected with the connector without passing through a circuit board, so that the manufacturing cost is reduced and the heat dissipation effect is good.

[ description of the drawings ]

Fig. 1 is a perspective view of an electrical system consistent with the present invention.

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

Fig. 3 is an exploded view of the electrical system shown in fig. 1.

Fig. 4 is an exploded view of the electrical system shown in fig. 2.

Fig. 5 is a side view of the receptacle connector assembly of the electrical system shown in fig. 1.

Fig. 6 is a side view of the jack connector assembly of the electrical system shown in fig. 5, when the jack connector assembly is not provided with a housing.

Fig. 7 is a perspective view of the electrical system shown in fig. 2 with a portion of the cable removed to show how the receptacle connector assembly is disposed in the metal shell.

Fig. 8 is an exploded view of the chassis and metal housing of the electrical system shown in fig. 1.

Fig. 9 is an exploded view from another perspective of the chassis and metal shell of the electrical system shown in fig. 8.

Fig. 10 is a perspective view of the receptacle connector of the cable shown in fig. 6 provided with an associated core wire, with the outer insulation of the cable removed.

Fig. 11 is a perspective view from another perspective of the receptacle connector of fig. 10 with the cable having an associated core wire.

Fig. 12 is an exploded view of the receptacle connector of fig. 10 with the associated cord provided.

Fig. 13 is a further exploded view of the receptacle connector of the cable shown in fig. 10 with the associated conductors disposed therein, wherein the low speed signal conductors are separated from the receptacle connector.

Fig. 14 is an exploded view from another perspective of the receptacle connector of fig. 13 with the cable having an associated core, wherein the low speed signal core is separated from the receptacle connector.

Fig. 15 is a top view of the receptacle connector shown in fig. 13 with the associated core removed from the low speed signal core.

Fig. 16 is a top view of the receptacle connector shown in fig. 15 with the associated core removed from the low speed signal core.

Fig. 17 is an exploded view of the receptacle connector of fig. 13 with an associated cord, wherein the cable is separated from the receptacle connector.

Fig. 18 is an exploded view from another perspective of the receptacle connector shown in fig. 17 with an associated cord, wherein the cable is separated from the receptacle connector.

Fig. 19 is an exploded view from another perspective of the receptacle connector shown in fig. 17 with an associated cord, wherein the cable is separated from the receptacle connector.

Fig. 20 is a further exploded view of the receptacle connector shown in fig. 17.

Fig. 21 is an exploded view from another perspective of the receptacle connector shown in fig. 20.

Fig. 22 is an assembled view of the terminal module of the receptacle connector shown in fig. 20.

Fig. 23 is an assembled view from another perspective of the terminal module of the receptacle connector shown in fig. 20.

Fig. 24 is a side view of the terminal module of the receptacle connector shown in fig. 20.

Fig. 25 is an exploded view of the terminal module of the receptacle connector of fig. 22, wherein the terminal module includes an upper member and a lower member.

Fig. 26 is an exploded view from another perspective of the terminal module of the receptacle connector of fig. 23, wherein the terminal module includes an upper member and a lower member.

Fig. 27 is a side view of the terminal module of the receptacle connector shown in fig. 22.

Fig. 28 is a further exploded view of the terminal module of the receptacle connector shown in fig. 25.

Fig. 29 is an exploded view from another perspective of the terminal module of the receptacle connector shown in fig. 26.

Fig. 30 is a cross-sectional view of the receptacle connector of fig. 10 with an associated core wire taken along direction a-a to show how the grounding tabs mate with corresponding grounding terminals.

Fig. 31 is a cross-sectional view of the receptacle connector of fig. 10 with an associated core wire taken along the direction B-B to show how the grounding tabs mate with corresponding grounding terminals.

Fig. 32 is a cross-sectional view of the receptacle connector of fig. 10 with an associated core wire taken along the direction C-C to show how the connecting portions of the components on the terminal module are disposed within the body.

Fig. 33 is a cross-sectional view of the receptacle connector of fig. 10 with an associated core wire taken along direction D-D to show how the connecting portion of the terminal module lower assembly is disposed within the body.

Fig. 34 is a sectional view of the receptacle connector shown in fig. 10 provided with the relevant core wire in the direction of E-E to show how the connection portions of the inner terminals are connected with the corresponding cables.

Fig. 35 is a sectional view of the receptacle connector shown in fig. 10 provided with the relevant core wires in the F-F direction to show how the connection portions of the outer terminals are connected with the corresponding cables.

Fig. 36 is an exploded view of the upper assembly of the terminal module of the receptacle connector shown in fig. 25.

Fig. 37 is an exploded view from another perspective of the upper assembly of the terminal module of the receptacle connector shown in fig. 26.

Fig. 38 is an exploded view of the lower assembly of the terminal module of the receptacle connector shown in fig. 25.

Fig. 39 is an exploded view from another perspective of the lower assembly of the terminal module of the receptacle connector shown in fig. 26.

Fig. 40 is an exploded view of the terminal module of the receptacle connector shown in fig. 20.

Fig. 41 is an exploded view from another perspective of the terminal module of the receptacle connector shown in fig. 21.

Fig. 42 is a side view of the terminal module of the receptacle connector shown in fig. 20.

Fig. 43 is an exploded view of the upper assembly of the terminal module shown in fig. 10 with an associated core wire.

Fig. 44 is an exploded view from another perspective of the upper assembly of the terminal module shown in fig. 11 with an associated core wire.

Fig. 45 is an exploded view of the lower assembly of the terminal module shown in fig. 10 with an associated core wire.

Fig. 46 is an exploded view of the lower assembly of the terminal module shown in fig. 11 with the associated core wires from another perspective.

Fig. 47 is a partially assembled view of the upper and lower assemblies of the terminal module shown in fig. 43 and 45 provided with the relevant core wires.

Fig. 48 is a partially assembled view of the upper and lower assemblies of the terminal module shown in fig. 44 and 46 with the associated core wires.

FIG. 49 is a cross-sectional view of the electrical system shown in FIG. 1 taken along the direction G-G.

FIG. 50 is a cross-sectional view from another perspective of the electrical system shown in FIG. 1.

Fig. 51 is a perspective view of a two-sided electrical system with two cables in accordance with the present invention.

Fig. 52 is a perspective view from another perspective of the two-sided electrical system shown in fig. 51 with two cables.

FIG. 53 is a side view of the dual-sided electrical system shown in FIG. 51.

Fig. 54 is an exploded view of the two-sided electrical system shown in fig. 51 with two cables.

Fig. 55 is an exploded view from another perspective of the two-sided electrical system shown in fig. 51 with two cables.

Fig. 56 is a cross-sectional view of the two-sided electrical system shown in fig. 51 with two cables.

Fig. 57 is an exploded view of the two-sided electrical system shown in fig. 51 with two cables.

Fig. 58 is an exploded view from another perspective of the two-sided electrical system shown in fig. 51 with two cables.

[ detailed description ] embodiments

As shown in fig. 1-9, to provide an electrical system 100 consistent with the present invention, the electrical system 100 includes a metal shell or housing 110 positioned at the rear end of an opening 122 in a panel 120, the housing 110 being secured to a chassis 130 by mounting legs 122 through corresponding holes 132. The housing 110 includes an upper opening 114 at a corresponding upper wall 116. The heat sink 140 is mounted to the upper wall 116 by a retaining clip 142 to connect a QSFP plug module (not shown) that is received in the receiving space 118 of the housing 110 on the underside of the upper wall 116. The chassis 130 further comprises through holes 134 for receiving corresponding mounting posts 326 of a jack connector assembly 300, which jack connector assembly 300 will be described later.

As shown in fig. 10-50, the receptacle connector assembly 300 is received and accommodated in the rear end of the accommodating space 118. The receptacle connector assembly 300 comprises a receptacle connector 310 and a cable 900 connected to the receptacle connector. The receptacle connector includes an insulative housing 320 having a receiving cavity 322, wherein the receiving cavity 322 is used for receiving a terminal module 330. The housing 320 includes a plurality of passages 324 for receiving corresponding terminals (described below), a pair of mounting posts 326 at the bottom and mounted in corresponding holes 134 of the chassis 130, and a plurality of ribs 328 that mate with corresponding recesses 119 in the housing 110. The rectangular blocks 329 on either side of the dielectric body 320 engage the rectangular openings 117 in the side walls of the housing 110 by the ribs 328 engaging the notches 119 in the housing 110, and the mounting posts 326 are received in the holes 134 in the chassis 130 so that the receptacle connector 310 remains secured within the housing 110.

The insulative body 320 further includes a receiving slot 321 at the front end and in communication with the receiving cavity 322 for insertion of a QSFP plug connector (not shown). The terminal module 330 includes an upper assembly 340 and a lower assembly 360 stacked with the upper assembly 340 in a vertical direction. The upper 340 and lower 360 components of the upper assembly 340 are substantially similar to each other in mirror image, i.e., symmetrically arranged. The cover 390 is assembled on the insulative body 330 to shield and fix the terminal module in a vertical direction. It is noted that the cover 390 can be assembled to the insulating housing 320 at a position corresponding to the structure of the insulating housing 320 horizontally or downwardly.

As shown in fig. 36-42, the upper assembly 340 includes a front outboard module 342 and a rear inboard module 352, wherein the front outboard module 342 includes an upper front outboard insulator 344 and a plurality of upper front outboard terminals 346 integrally formed with the upper front outboard insulator 344, and the rear inboard module 352 includes an upper rear inboard insulator 354 and a plurality of upper rear inboard terminals 356 integrally formed with the upper rear inboard insulator 354. The outer ground piece 341 and the inner ground piece 351 are respectively located on the upper and lower surfaces of the upper front end outside insulator 344 and the upper rear end inside insulator 354. The upper front-end outside terminal 346 includes a low-speed signal terminal 3461 located at a central region to transmit a low-speed signal, a high-speed differential signal terminal 3462 to transmit a high-speed differential signal, and ground terminals 3463 alternately arranged with each other at lateral both side regions to transmit a ground signal. Wherein the tail/connection portions 34611 of the low-speed signal terminals 3461 extend vertically outward, the tail/connection portions 34621 of the high-speed differential pair signal terminals 3462 extend horizontally for surface mounting, and so do the tail/connection portions 34631 of the ground terminals 3463. It is to be noted that the connection portions 34631 of all the ground terminals 3463 are connected to a common ground 34632, and the common ground 34632 is to be soldered to a corresponding common ground bracket (described later).

Accordingly, the upper rear-end inside terminal 356 includes a low-speed signal terminal 3561 in a central region, a high-speed differential signal terminal 3562, and ground terminals 3563 alternately arranged with each other in lateral side regions. With the tail/land 35611 of the low speed signal terminals 3561 extending horizontally outward, the tail/land 35621 of the high speed differential pair signal terminals 3562 extending horizontally for surface mounting, and the tail/land 35631 of the ground terminals 3563. It is to be noted that the connection portions 35631 of all the ground terminals 3563 are connected to a common ground piece 35632, and the common ground piece 35632 is to be welded to a corresponding common ground bracket (described later).

It is understood that the coupling parts 347 of the upper front end outer terminals 346 are arranged in a front row arranged in the lateral direction, and the coupling parts 357 of the upper rear end inner terminals 356 are arranged in a rear row arranged in the lateral direction. It is noted that the outer ground terminal 341 is located on the upper surface of the upper front outer insulator 344, and includes a plurality of resilient pieces 3411 extending downward and connected to the corresponding ground terminal 3463 of the upper front outer terminal 346. The inner ground terminals 351 are disposed on the upper front end outer insulator 344 and the upper rear end inner insulator 354, and include a plurality of resilient tabs 3511 extending downward and connected to the ground terminals 3563 corresponding to the upper rear end inner terminals 356 and a plurality of resilient tabs 3512 extending upward and connected to the ground terminals 3463 corresponding to the upper front end outer terminals 346.

It is noted that the upper front outer module 342 and the upper rear inner module 352 of the upper assembly 340 are assembled downward onto the insulator body 20 by the protrusion 3441 (shown in fig. 36) of the upper front outer insulator 344 mating with the groove 323 (shown in fig. 17 and 20) of the insulator body 320.

The lower assembly 360 is similar to the upper assembly 340 and includes a front outboard module 362 and a rear inboard module 372, wherein the front outboard module 362 includes a lower front outboard insulator 364 and a plurality of lower front outboard terminals 366 integrally formed with the lower front outboard insulator 364, and the rear inboard module 372 includes a lower rear inboard insulator 374 and a plurality of lower rear inboard terminals 376 integrally formed with the lower rear inboard insulator 374. The external ground plate 361 and the internal ground plate 371 are respectively located on the upper and lower surfaces of the lower front-end outside insulator 364 by means of the

snaps

3619,3719. The lower front end outer terminal 366 includes a low speed signal terminal 3661 located in a central region, a high speed differential signal terminal 3662, and ground terminals 3663 alternately arranged along both lateral regions. Wherein the tail/connector portions 36611 of the low speed signal terminals 3661 extend vertically outward, the tail/connector portions 36621 of the high speed differential pair signal terminals 3662 extend horizontally for surface mounting, and so do the tail/connector portions 36631 of the ground terminals 3663. It is to be noted that the connection portions 36631 of all the ground terminals 3663 are connected to a common ground piece 36632, and the common ground piece 36632 is to be welded to a corresponding common ground bracket (described later).

Accordingly, in the lower assembly 360, the lower rear-end inner terminal 376 includes a low-speed signal terminal 3761 in a central region, high-speed differential signal terminals 3762 and ground terminals 3763 alternately arranged with each other in lateral side regions. With the tails/connections 37611 of the low speed signal terminals 3761 extending horizontally outward, the tails/connections 37621 of the high speed differential pair signal terminals 3762 extending horizontally for surface mounting, and the tails/connections 37631 of the ground terminals 3763. It is to be noted that the connection portions 37631 of all the ground terminals 3763 are connected to the common ground 37632, and the common ground 37632 will be welded to the corresponding common ground bracket (described later).

It will be appreciated that the connection portions 367 of the lower front end outer terminals 366 extend into the pockets 322 and are arranged in the front row in the transverse direction, and the connection portions 377 of the lower rear end inner terminals 376 extend into the pockets 322 and are arranged in the rear row in the transverse direction. It is noted that the outer ground terminal 361 is located on the upper surface of the lower front outer insulator 364, and includes a plurality of resilient tabs 3611 extending upward and connected to corresponding ground terminals 3663 of the lower front outer terminal 366. The inner ground terminal 371 is located between the lower front end outer insulator 364 and the lower rear end inner insulator 374, and includes a plurality of resilient tabs 3711 extending upward and connected to the ground terminal 3763 corresponding to the lower rear end inner terminal 376 and a plurality of resilient tabs 3712 extending downward and connected to the ground terminal 3663 corresponding to the lower front end outer terminal 366.

In the present embodiment, the lower front-end outside module 362 and the lower rear-end inside module 372 are assembled to the insulative housing 320. It will be appreciated that the

connections

367, 377 of the lower member 360 are not vertically aligned with the corresponding

connections

347, 357, but are laterally offset, as dictated by the QSFP-DD specification.

As shown in fig. 10-19, 43-48, the cable 900 includes a plurality of high speed differential core wire pairs 910 and a plurality of low speed core wires 920. The low-speed core wires 920 are connected to the

connection portions

34611,35611,36611,37611 of the corresponding low-

speed signal terminals

3461,3561,3661,3761 through the inner connectors 921. The high speed differential core pair 910 includes an inner conductor 912 connected to the

connection portions

34631, 35631,36631,37631 of the

respective ground terminals

3463,356,3663,3763 and an outer braid 914 connected to a

common ground

34632,35632,36632,37632 provided with a respective common ground bracket 950. The common ground bracket 950 includes a plurality of protrusions 951 and a plurality of slots or recessed portions 952 adjacent to the two protrusions 951 for receiving the corresponding differential core pairs 910.

The same concept can be applied to a two-sided QSFP-DD, as shown in FIGS. 51-58. Wherein the electrical system 550 is provided with a relatively large-sized housing 500 and a pair of receptacle connectors 600 respectively fixed to the housing 500 by cables 800, the housing 500 is provided with a partition to divide an inner space into two receiving spaces. It will be appreciated that the spacer 520 serves to provide a heat dissipation function to dissipate heat from the QSFP plug module (not shown).

The advantages of the present invention are as follows:

1. the cable directly connected to the connector can accommodate 4 rows of lead frames with truly symmetrical shape, length and signal integrity.

2. The QSFP-DD cable directly connected with the connector system adopts a direct horizontal connection design, so that the signal integrity is convenient to fine tune.

3. Signals are transmitted from cables directly connected to the connectors through "patch cables" connected to the main board inside the box and connected to the connectors.

4. Cables that connect directly to the connector do not use a PCB, thus eliminating "line loss" in the circuit board and saving PCB manufacturing costs.

5. The "direct connect" cable provides a great advantage for 2x1 stacked connectors, and it is difficult for the industry to implement the existing 2x1 design to specification.

6. Cable designs that connect directly to the connector have great advantages in thermal performance, especially in 2x1 solutions. The connectors may be stacked on top of each other in the housing, the height of the stack allowing better "passage" of air.

7. Cables directly connected to the connector can also be easily used in a "bottom-to-bottom" solution, eliminating any challenges in circuit board layout.

The invention is mainly characterized in that the QSFP-DD socket connector is directly matched with a cable and is arranged on a circuit board instead of the QSFP-DD socket connector. The second feature is that the receptacle connector is fixed to the chassis rather than to the circuit board. The third feature is that the stacked modules have connecting portions of respective high-speed differential signal pair terminals arranged in an offset manner in the lateral direction and in two rows in the front-rear direction. The fourth characteristic is that the cable is of a hybrid type including a low-speed core and a high-speed core. The fifth feature is that the low speed core and the high speed core extend from the same respective die set at different levels. A sixth feature is that all the ground terminals are made in one piece from a metal sheet having a common ground piece on which the common ground support of the cables of the respective adjustable/relative braids is welded or soldered. A seventh feature is that the floor of the housing may extend from the front edge to the rear edge to be completely shielded rather than being terminated by the intermediate region. Since no openings are required in the bottom wall around the rear edge to allow the receptacle connector to be mounted on a circuit board. An eighth feature is that the common ground includes not only a groove for holding the respective cable for shield soldering, but also a channel for holding the respective cable extending through another common ground.

Claims

1. A jack connector assembly adapted to be secured within a housing, the jack connector assembly comprising an insulative housing, a plurality of terminals and cables received within the insulative housing, the insulative housing including a front end and a rear end having mating ports for insertion of mating plugs, the terminals including at least one pair of first terminals for transmitting ground signals, at least one pair of second terminals for transmitting high speed differential signals and at least one third terminal for transmitting low speed signals, the cables including a plurality of first cables and at least one second cable, the jack connector assembly comprising: the first cable is electrically connected with the at least one pair of second terminals in a first mode, the at least one second cable is electrically connected with the at least one third terminal in a second mode different from the first mode, the terminals comprise a first group and a second group, the first group is arranged into a first row, the second group is arranged into a second row opposite to the first row, the first group and the second group both comprise the at least one pair of first terminals, the at least one pair of second terminals and the at least one third terminal, the at least one third terminal of the first group extends upwards to form the insulating body, and the at least one third terminal of the second group extends downwards to form the insulating body.

2. The receptacle connector assembly according to claim 1, wherein the first cable is electrically connected directly to at least one pair of second terminals, and at least one of the second cables is electrically connected to at least one third terminal through an internal connector.

3. The receptacle connector assembly according to claim 2, wherein the pair of first terminals includes a first connecting portion, a pair of first mating portions and a pair of first intermediate portions connecting the first connecting portion and the first mating portions, the receptacle connector assembly further comprising a grounding member, the first cable being disposed between the grounding member and the first connecting portion to establish a grounding connection.

4. The receptacle connector assembly according to claim 3, wherein each of the second terminals includes a second connecting portion disposed in front of the first connecting portion, a second mating portion and a second intermediate portion connecting the second connecting portion and the second mating portion, the first cables being connected to the respective second connecting portions.

5. The receptacle connector assembly of claim 2, wherein at least one of the third terminals includes a third mating portion, a third connecting portion extending out of the dielectric body and a third intermediate portion connecting the third connecting portion and the third mating portion, the female connector directly mating with the third connecting portion.

6. The receptacle connector assembly according to claim 5, wherein the terminals further include a third set of a third row extending rearwardly below the first row and a fourth set of a fourth row extending rearwardly above the second row, the fourth row being disposed opposite the third row, the third and fourth sets each including the at least one pair of first terminals, the at least one pair of second terminals and the at least one third terminal.

7. The receptacle connector assembly according to claim 6, wherein the cable includes four second cables, at least one third terminal of the third set extends rearwardly out of the insulator, at least one third terminal of the fourth set extends rearwardly out of the insulator, one of the second cables is electrically connected to at least one third terminal of the first set via an inner connector, another one of the second cables is electrically connected to at least one third terminal of the second set via another inner connector, and the remaining two second cables are electrically connected to at least one third and fourth set of third terminals via two inner connectors, respectively.

8. The receptacle connector assembly according to claim 6, wherein the third set includes two pairs of second terminals, each second terminal of the first set including a connecting portion, each second terminal of the third set including a connecting portion, one pair of the connecting portions of the second terminals of the first set being disposed between two pairs of the connecting portions of the second terminals of the third set in the lateral direction.

9. The receptacle connector assembly according to claim 8, further comprising a common ground bracket for the third set, the common ground bracket including two projections and a recess intermediate the two projections, the first cable extending through the common ground bracket through the recess.