Connector combination

Abstract

The invention discloses a connector combination which is characterized by comprising a first connector which comprises a first insulation body and two rows of terminals, and each row of terminals comprises a signal terminal and a grounding terminal; the conductive piece is arranged between the two rows of signal terminals; the second connector comprises a second insulating body and a grounding piece, a main rib is fixed on the second insulating body, a plurality of separation ribs are connected with the main rib, and the grounding piece is downwards connected with the circuit board; after the first connector and the second connector are in butt joint, the signal terminals abut against the circuit board, the grounding terminals abut against the grounding piece, and the separation ribs are located between every two adjacent signal terminals. The separation ribs are independently arranged on the second connector and are not easy to break, and the separation ribs are located between the two adjacent signal terminals, so that the dielectric constant between the two signal terminals can be increased, signals emitted by the signal terminals to the outside are reduced, and crosstalk is further reduced.

Description

[Technical field]

[0001] The invention relates to a connector assembly, in particular to a connector assembly involving high-frequency signal transmission. [Background technology]

[0002] As server performance improves, the requirements for high-frequency signal transmission performance of connectors are getting higher and higher. Nowadays, the high-frequency transmission rate requirement has reached 128Gbps. At such a high transmission rate, the crosstalk problem between signal terminals is one of the difficulties.

[0003] Chinese invention patent CN202011072601.5 discloses an electrical connector, which includes a shell and multiple terminals. The insulating body includes a receiving groove, and the multiple terminals are accommodated in the receiving groove. The terminals include signal terminals and ground terminals. There are two signal terminals between two adjacent ground terminals, and the two signal terminals form a group of differential signal pairs. The signal terminal and the ground terminal are both provided with contact ends, and the contact ends of the signal terminal and the ground terminal are both passed through the corresponding terminal through holes to abut against the circuit board. In order to avoid signal crosstalk between two adjacent groups of differential signal pairs, the connector adopts the method of making the spacing between two adjacent signal terminals smaller than the spacing between the signal terminal and the adjacent ground terminal, making the connection end of the ground terminal used for wiring longer than the signal terminal, and providing a shielding grounding conductive pad on the circuit board to avoid crosstalk between multiple differential signal pairs.

[0004] However, when the signal transmission rate is further improved, the crosstalk problem between the above-mentioned signal terminals, especially the contact ends of the signal terminals, still exists. Although the contact ends of the signal terminals of the electrical connector are blocked by the contact ends of the ground terminals, the signal emitted from the contact ends of the signal terminals of a differential signal pair can still have enough space to bypass the contact ends of the ground terminals and cause interference to the signal terminals of other differential signal pairs.

[0005] Referring to Chinese invention patent CN201310642342.9, in the electrical connector disclosed therein, the partition between the two signal terminals of a pair of differential signal terminals remains unchanged, and the partition between the differential signal terminals and the ground terminals is partially removed to reduce the dielectric material between each pair of differential signal terminals and the ground terminals, thereby reducing crosstalk interference.

[0006] However, the electrical connector disclosed in CN202011072601.5 has a too narrow spacing between two adjacent signal terminals. If a partition is extended from the shell so that it is located between the two adjacent signal terminals, the partition will inevitably be too thin and easy to break, which makes it impossible to further improve the crosstalk. Therefore, it is necessary to design a new connector combination to overcome the above problem. [Summary of the invention]

[0007] The purpose of the invention is to provide a connector combination, wherein a first connector is provided with a signal terminal and a ground terminal, and a second connector is provided with a partition rib and a grounding piece. The signal terminal passes through the second connector and is directly connected to a circuit board, and the grounding terminal abuts against the grounding piece of the second connector. The partition rib of the second connector is inserted between the two signal terminals of the first connector to reduce crosstalk between the signal terminals.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A connector assembly, characterized by comprising:

[0010] The first connector comprises a first insulating body and a plurality of terminals received in the first insulating body, wherein the terminals are arranged in two rows along the front-back direction, wherein the terminals in each row comprise a signal terminal and a ground terminal, wherein two adjacent signal terminals form a differential signal terminal pair, wherein at least one ground terminal is provided between the two adjacent differential signal terminal pairs, and wherein the signal terminal comprises a first elastic arm. A conductive member is provided between the two rows of first elastic arms; the second connector is used to be connected downwardly to the circuit board, and comprises a second insulating body and a ground member received in the second insulating body, wherein the second insulating body comprises two side walls located on the left and right sides, and a front wall and a rear wall connecting the two side walls, wherein a main rib is located between the front wall and the rear wall and connected to the two side walls, wherein a plurality of partition ribs are connected to the main rib, wherein the partition ribs extend toward the front wall and the rear wall, and wherein the ground member is used to conduct downwardly to the circuit board; after the first connector is connected to the second connector along the up-down direction, the first elastic arm abuts against the circuit board, the ground terminal abuts against the ground member, and the partition rib is located between the two signal terminals of the differential signal terminal pair.

[0011] Furthermore, the first elastic arm has an abutment portion, the partition rib is close to the circuit board and its projection in the up and down directions is located between two adjacent signal pads of the circuit board, and the partition rib has a guiding portion. When the first connector is docked with the second connector, the guiding portion guides the two adjacent abutment portions so that the two abutment portions are located on both sides of the partition rib and abut against two adjacent signal pads of the circuit board.

[0012] Furthermore, a widened portion is provided at the portion where the partition rib connects to the main rib, and the width of the widened portion along the left-right direction is greater than the width of other portions of the partition rib. A receiving groove is provided on the main rib, and the receiving groove is located between two rows of partition ribs. The first elastic arm extends downward beyond the first insulating body, and after the first connector is docked with the second connector, the receiving groove accommodates the conductive member, and the portion of the conductive member accommodated in the receiving groove is located between the two rows of the first elastic arms.

[0013] Furthermore, the grounding member includes a base, an extension portion and a conductive portion, the extension portion extends from the base toward the main rib, the extension portion is located above the conductive portion and connected to the conductive portion, the signal terminal has a contact portion that abuts against the circuit board, the grounding terminal abuts against the corresponding extension portion, and after the first connector is docked with the second connector in the up and down directions, the projections of the conductive portion and the abutting portion in the left and right directions overlap.

[0014] Furthermore, the grounding terminal includes a second main body portion and a contact portion and a second elastic arm extending downward from the second main body portion, the extension portion is bent and extended near the main rib to have a lap portion, the second elastic arm abuts against the lap portion along a first direction, the contact portion abuts against the conductive portion along a second direction, and the first direction is not parallel to the second direction.

[0015] Furthermore, an insulating part is injection molded on the grounding part, and the insulating part has a main body part for fixing the base and a protrusion part for fixing the extension part. The main body part is fixed to the second insulating body, and the first insulating body has a plurality of grooves for docking with the second connector, and the grooves cooperate with the protrusion for positioning.

[0016] Furthermore, the partition rib is provided with a notch near the protrusion, the first insulating body also includes a bump, the groove is located between the two bumps, the notch gives way to the bump, and the bump is stopped by the body and the partition rib in the front and rear directions respectively, and by the protrusion in the left and right directions.

[0017] Furthermore, the signal terminal includes a first main body and a first connecting portion extending from the first main body, the ground terminal includes a second main body, a second connecting portion and a shielding portion, the second connecting portion connects the second main body and the shielding portion, the first connecting portion is parallel to the second connecting portion, the first connector includes a plurality of cables, each cable includes a signal wire welded to the first connecting portion and a ground wire welded to the second connecting portion, and the shielding portion is perpendicular to the second connecting portion and blocks the ground wire.

[0018] Furthermore, the grounding terminal has a second elastic arm and a shielding portion, the second elastic arm abuts the grounding piece, the first elastic arm and the second elastic arm are staggered in the front-to-back direction, and the projection of the shielding portion in the left-to-right direction at least partially overlaps with the projection of the first elastic arm in the left-to-right direction; after the first connector is docked with the second connector, the partition rib is only located between the two first elastic arms of the differential signal terminal pair, and there is no partition rib between the first elastic arm and the second elastic arm.

[0019] Furthermore, the conductive part is plate-shaped and includes a plurality of protrusions and a plurality of recesses, the plurality of protrusions and the plurality of recesses are alternately arranged in a row, a plastic part is fixed on the grounding terminal, the recess is positioned in cooperation with the plastic part, the recess is opposite to the grounding terminal in the front-to-back direction, and the protrusion is opposite to the signal terminal in the front-to-back direction.

[0020] Furthermore, there is a spacing space between the partition rib and the front wall or the rear wall, an insulating part is injection molded on the grounding part, the insulating part has a main body and a protrusion extending from the main body toward the main rib, the main body is positioned in the spacing space, at least one partition rib is against the main body along the direction close to the front wall or close to the rear wall, and the protrusion is located between the two partition ribs.

[0021] Furthermore, the main rib includes a fixing portion protruding downward, the fixing portion is fixed downward to the circuit board, and the main rib and the partition rib are assembled and fixed to the second insulating body.

[0022] Compared with the prior art, the connector assembly provided by the present invention has the following beneficial effects:

[0023] The partition rib is located between the two signal terminals of the same differential signal terminal pair, which can increase the dielectric constant between the two signal terminals, thereby increasing the capacitance between the two signal terminals, and then weakening the signal emitted by the signal terminal to the outside, and finally reducing the crosstalk between different differential signal terminal pairs. The partition rib is arranged on the second connector, and multiple partition ribs are connected by a main rib. Compared with the partition ribs arranged between the signal terminals on the first connector, it is not easy to break, and it can also allow a position to set a conductive part between the signal terminals, thereby reducing the crosstalk between the two rows of signal terminals. In addition, the signal terminal is directly connected to the circuit board, which can also shorten the transmission path of the signal terminal and reduce the signal loss.

Brief Description of the Drawings

[0024] Figure 1 A schematic diagram of a connector assembly plus a circuit board of the present invention;

[0025] Figure 2 is a three-dimensional exploded view of the first connector of the present invention;

[0026] Figure 3 is a perspective exploded view of the second connector of the present invention;

[0027] Figure 4 A cross-sectional view of the connector assembly plus the circuit board;

[0028] Figure 5 Another cross-sectional view of the connector assembly plus the circuit board;

[0029] Figure 6A three-dimensional diagram of the connector assembly after removing the first insulating body, the second insulating body and the insulating member;

[0030] Figure 7 for Figure 6 Side view after adding the circuit board;

[0031] Figure 8 is a three-dimensional diagram of a ground terminal;

[0032] Fig. 9 is a top view of the second connector;

[0033] Fig.10 A perspective view of the second connector

[0034] Fig.11 is an exploded view of a second connector in another embodiment;

[0035] Description of the accompanying drawings for the specific implementation:

[0036]

[0037] [Specific implementation method]

[0038] 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.

[0039] The connector assembly 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.

[0040] refer to Figure 1 The present invention provides a connector assembly, including a first connector 100 and a second connector 200 that can be mated, wherein the first connector 100 includes a first insulating body 1, two rows of terminals, a plastic part fixed on the terminals, a cable 5 connected to the terminals, and a conductive part 4 fixed between the two rows of terminals, and the second connector 200 includes a second insulating body 6, a main rib 7, a grounding part 8, and an insulating part 9 fixed on the grounding part 8. Of course, in other embodiments, the conductive part 4 can also be fixed on the second connector 200.

[0041] refer to Figure 2The first insulating body 11 includes a groove 11 and a protrusion 12 located at the bottom, and each groove 11 is located between two protrusions 12. A plurality of terminals are arranged in two rows along the front-to-back direction, and each row of terminals includes a plurality of signal terminals 2 and a plurality of grounding terminals 3. Two adjacent signal terminals 2 form a differential signal terminal pair, and there is at least one grounding terminal 3 between two adjacent differential signal terminal pairs. The plastic part includes a first plastic part 24 and a second plastic part 36. The first plastic part 24 is injection molded on the signal terminal 2, and the second plastic part 36 is injection molded on the grounding terminal 3. Of course, in other embodiments, one plastic part can also be injection molded on the signal terminal 2 and the grounding terminal 3.

[0042] refer to Figure 2 and Figure 4 The conductive member 4 is plate-shaped and its material can be metal, conductive plastic, or plastic electroplating, as long as it can conduct electricity and achieve the effect of reducing crosstalk. There are multiple protrusions 41 and multiple recesses 42 above the conductive member 4. The multiple protrusions 41 and the multiple recesses 42 are alternately arranged in a row. Along the front-to-back direction, the recesses 42 face the ground terminal 3, and the protrusions 41 face the signal terminal 2. The recesses 42 of the conductive member 4 are positioned in cooperation with the second plastic member 36, and the plate surface of the conductive member 4 abuts the ground terminal 3, so that the conductive member 4 is electrically connected with the ground terminal 3, thereby improving the shielding effect of the conductive member 4.

[0043] refer to Figure 2 , Figure 7 and Figure 8 The signal terminal 2 includes a first connecting portion 21, a first main body 22 and a first elastic arm 23. The first main body 22 connects the first connecting portion 21 and the first elastic arm 23. The first main body 22 is fixed to the first plastic part 24. The first elastic arm 23 is exposed outside the first plastic part 24. The first elastic arm 23 is also provided with an abutting portion 231 to abut against the circuit board 300. The grounding terminal 3 includes a second connecting portion 31, a second main body 32, a second elastic arm 33, a shielding portion 34 and a shielding portion 35. The shielding portion 34 has a contact portion 341. The second main body 32 is connected to the second connecting portion 31 upward. The second connecting portion 31 is arranged parallel to the first connecting portion 21. The shielding portion 35 extends from the second connecting portion 31 and is perpendicular to the second connecting portion 31. Of course, in actual products, the verticality here does not necessarily require that the angle between the shielding portion 35 and the second connecting portion 31 is 90 degrees. The angle between the two can be considered as vertical in the present invention when it is between 80° and 100°. Each cable 5 includes two signal wires 51 and two ground wires 52 . The signal wires 51 are welded to the first connection portion 21 , and the ground wires 52 are welded to the second connection portion 31 and blocked by the shielding portion 35 .

[0044] Specifically, there are multiple grounding terminals 3, one grounding terminal 3 is provided between two adjacent differential signal terminal pairs, and only one second connection portion 31 is provided between two adjacent first connection portions 21 belonging to different differential signal terminal pairs. The shielding portion 35 connected to the second connection portion 31 separates the two first connection portions 21 and can reduce the crosstalk between them. In the signal terminals 2 and grounding terminals 3 located in the same row, the first elastic arm 23 and the second elastic arm 33 are arranged in a staggered manner along the front-to-back direction, and the projection of the shielding portion 34 along the left-right direction at least partially overlaps with the projection of the first elastic arm 23 along the left-right direction, that is, the shielding portion 34 shields the first elastic arm 23 in the left-right direction. In addition, multiple grounding terminals 3 can be integrally formed, that is, each grounding terminal 3 is not a separate integral body, and its partial structure can be integrally connected with other grounding terminals 3.

[0045] refer to Figure 3 , Fig. 9 and Fig.10 The second insulating body 6 includes two side walls 63 located on the left and right sides and a front wall 61 and a rear wall 62 connecting the two side walls 63. A main rib 7 is located between the front wall 61 and the rear wall 62 and is connected to the two side walls 63. A plurality of partition ribs 71 are connected to the main rib 7. The partition rib 71 extends toward the front wall 61 and the rear wall 62. Specifically, the partition rib 71 can be integrally formed with the main rib 7. The partition rib 71 extends from the main rib 7. In other embodiments, the partition rib 71 can also be formed separately from the main rib 7. The partition rib 71 cooperates with the main rib 7 for positioning.

[0046] The main rib 7 is provided with a receiving groove 72 from top to bottom, and the receiving groove 72 is located between two rows of partition ribs 71. The partition rib 71 has a guide portion 711 on the top, a notch 712 near the front wall 61 or the rear wall 62, and a spacing space 64 between the partition rib 71 and the front wall 61 or the rear wall 62. The partition rib 71 also includes a widening portion 713, which is connected to the main rib 7, and the width of the widening portion 713 in the left-right direction is greater than the width of other parts of the partition rib 71. This design makes the connection between the partition rib 71 and the main rib 7 wider, and the partition rib 71 is more firmly connected to the main rib 7, and is less likely to break.

[0047] The main rib 7 also protrudes downward to have two fixing portions 73 for fixing to the circuit board 300. Fig.10 and Fig.11 As shown, the main rib 7 can be injection molded as one piece with the second insulating body 6, or can be molded separately and assembled and fixed with the second insulating body 6. From the perspective of actual manufacturing, the main rib 7 is molded separately because the molding volume is smaller, and the partition ribs 71 on the main rib 7 are less affected by factors such as warping and are less likely to break.

[0048] The grounding member 8 includes a base 81, an extension 82 extending from the base 81 toward the main rib 7, and a conductive portion 83 located below the extension 82 and connected to the extension 82. The conductive portion 83 is downwardly connected to the circuit board 300. In the present invention, the conductive portion 83 can be welded to the circuit board 300, or can be abutted by interference, or can be elastically abutted. An insulating member 9 is injection molded on the grounding member 8. The insulating member 9 includes a main body 91 for fixing the base 81 and a protrusion 92 for fixing the extension 82. The main body 91 is positioned in the spacing space 64. The partition rib 71 abuts against the main body 91 along the direction close to the front wall 61 or close to the rear wall 62. The protrusion 92 is located between the two partition ribs 71.

[0049] Specifically, the second connector 200 has only two grounding members 8, each of which has only a plate-shaped base 81 and a plurality of extension portions 82 and a plurality of conductive portions 83 extending from the base 81, and the number of the extension portions 82 and the conductive portions 83 corresponds to the grounding terminal 3. Of course, in other embodiments, there may be more than two grounding members 8, and each grounding member 8 may have only one extension portion 82 and one conductive portion 83.

[0050] The following is a detailed overview of the structure and positional relationship of the first connector 100 and the second connector 200 after docking:

[0051] refer to Figure 4 After the first connector 100 and the second connector 200 are mated, the lower half of the conductive member 4 is received in the receiving groove 72, so that the lower half of the conductive member 4 can be located between the two rows of first elastic arms 23, thereby reducing the crosstalk between the first elastic arms 23 of different rows of signal terminals 2. In other embodiments, the conductive member 4 can be fixed to the second connector 200 through the receiving groove 72 from the beginning, and when the first connector 100 and the second connector 200 are mated, the conductive member 4 is positioned and matched with the first connector 100 through the concave portion 42 and the convex portion 41.

[0052] refer to Figure 5 , Figure 6 and Figure 7 The two adjacent abutting portions 231 are guided by the guide portion 711 on the partition rib 71, so that the two abutting portions 231 are located on both sides of the partition rib 71 and the two abutting portions 231 abut against two adjacent signal pads S of the circuit board 300. Because the partition rib 71 is arranged on the second connector 200, it can be made longer in the up and down directions. Therefore, the parts directly facing the two adjacent first elastic arms 23 are almost separated by the partition rib 71, and there is no partition rib 71 between the opposite first elastic arms 23 and the ground terminal 3. This increases the dielectric constant between the two signal terminals 2 after the first connector 100 and the second connector 200 are docked, thereby increasing the capacitance between the two signal terminals 2 of the differential signal terminal pair, thereby reducing the crosstalk between different differential signal terminal pairs.

[0053] The second elastic arm 33 abuts against the overlapping portion 821 along a first direction, and the contact portion 341 abuts against the guiding portion 83 along a second direction. Specifically, the first direction is the front-to-back direction, and the second direction is the left-to-right direction. The two directions are perpendicular to each other. In other embodiments, the first direction and the second direction can be adjusted as needed, and they do not need to be parallel.

[0054] refer to Figure 1 and Figure 5 After the first connector 100 is mated with the second connector 200, the groove 11 is positioned with the protrusion 92, and the notch 712 makes way for the mating protrusion 12. The protrusion 12 is blocked by the body 91 and the partition rib 71 in the front and rear directions, and by the protrusion 92 in the left and right directions. The groove 11 and the protrusion 12 of the first connector 100 are positioned with the protrusion 92 and the notch 712 of the second connector 200, so that the first connector 100 can be more accurately mated with the second connector 200, so that the ground terminal 3 and the grounding member 8 can be accurately abutted.

[0055] In summary, the present invention has the following effects:

[0056] 1. The partition rib 71 is located between the two signal terminals 2 of the same differential signal terminal pair, which can increase the dielectric constant between the two signal terminals 2, thereby increasing the capacitance between the two signal terminals 2, and then weakening the signal emitted by the signal terminal 2 to the outside, and finally reducing the crosstalk between different differential signal terminal pairs. The partition rib 71 is provided on the second connector 200, and multiple partition ribs 71 are connected by a main rib 7. Compared with the partition rib 71 provided between the signal terminals 2 on the first connector 100, this makes the partition rib 71 less likely to break, and also allows a position for the conductive member 4 to be provided between the signal terminals 2, thereby reducing the crosstalk between the two rows of signal terminals 2. In addition, the signal terminal 2 is directly connected to the circuit board 300, which can also shorten the transmission path of the signal terminal 2 and reduce the signal loss.

[0057] 2. The ground terminal 3 is abutted against the grounding member 8 at two points, and the abutting directions are different, so that two different grounding loops can be formed, thereby enhancing the shielding effect and improving the signal integrity. The projections of the conductive portion 83 and the abutting portion 231 along the left and right directions at least partially overlap, that is, the conductive portion 83 is at least partially located between the abutting portions 231 of the two pairs of signal terminals 2, and can be used to shield the signal terminals 2. In addition, the upper and lower positional relationship between the conductive portion 83 and the extending portion 82 can also expand the shielding range of the grounding member 8, thereby further improving the shielding effect.

[0058] The first elastic arm 23 and the second elastic arm 33 are offset in the front-to-back direction, and the projection of the shielding portion 34 in the left-to-right direction at least partially overlaps with the projection of the first elastic arm 23 in the left-to-right direction. This is because the second elastic arm 33 generally requires a larger movable space in order to have good elasticity, which makes it impossible for the second elastic arm 33 to be used to shield the signal terminal 2 in the left-to-right direction. The present invention separates the second elastic arm 33 from the shielding portion 34, and separately sets the shielding portion 34 on the ground terminal 3 to shield the signal terminal 2, thereby better solving the crosstalk problem between the signal terminals 2.

[0059] 3. A shielding portion 35 perpendicular to the second connecting portion 31 is provided on the ground terminal 3. On the one hand, it is used to block and position the ground wire 52 to facilitate the welding of the cable 5. On the other hand, it can shield the signal line 51 and the first connecting portion 21 to reduce the crosstalk between the first connecting portions 21 of different differential signal terminal pairs.

[0060] 4. An insulating member 9 is injection molded on the grounding member 8. The protrusion 92 on the insulating member 9 can fix the extension portion 82 so that the extension portion 82 will not get loose when docking with the grounding terminal 3. On the other hand, the protrusion 92 can also cooperate with the groove 11 of the first insulating body 1 to facilitate docking of the first connector 100 with the second connector 200.

[0061] 5. The recessed portion 42 cooperates with the second plastic member 36 to position the conductive member 4 between the two rows of terminals, and the protruding portion 41 faces the signal terminals 2 , so that the shielding area of ​​the conductive member 4 between the two rows of signal terminals 2 is larger, thereby enhancing the shielding effect on the signal terminals 2 .

[0062] 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. A connector assembly, characterized in that: include: A first connector, comprising a first insulating body, and a plurality of terminals received in the first insulating body, wherein the terminals are arranged in two rows along the front-to-back direction, each row of the terminals comprises a signal terminal and a ground terminal, two adjacent signal terminals form a differential signal terminal pair, at least one ground terminal is provided between the two adjacent differential signal terminal pairs, and the signal terminal comprises a first elastic arm; A conductive member is disposed between two rows of first elastic arms; A second connector, used to connect downwardly with the circuit board, comprises a second insulating body and a grounding member received in the second insulating body, the second insulating body comprises two side walls located at the left and right sides and a front wall and a rear wall connecting the two side walls, a main rib is located between the front wall and the rear wall and connected to the two side walls, a plurality of partition ribs are connected to the main rib, the partition ribs extend toward the front wall and the rear wall, and the grounding member is used to connect downwardly with the circuit board; After the first connector is connected to the second connector along the up-down direction, the first elastic arm abuts against the circuit board, the grounding terminal abuts against the grounding member, and the partition rib is located between the two signal terminals of the differential signal terminal pair.

2. The connector assembly according to claim 1, characterized in that: The first elastic arm has an abutment portion, the partition rib is close to the circuit board and its projection in the up and down directions is located between two adjacent signal pads of the circuit board, the partition rib has a guiding portion, and when the first connector is docked with the second connector, the guiding portion guides the two adjacent abutment portions so that the two abutment portions are located on both sides of the partition rib and abut against two adjacent signal pads of the circuit board.

3. The connector assembly according to claim 1, characterized in that: A widened portion is provided at the portion where the partition rib is connected to the main rib, and the width of the widened portion along the left-right direction is greater than the width of other portions of the partition rib. A receiving groove is provided on the main rib, and the receiving groove is located between two rows of partition ribs. The first elastic arm extends downwardly beyond the first insulating body. After the first connector is docked with the second connector, the receiving groove accommodates the conductive member, and the portion of the conductive member accommodated in the receiving groove is located between the two rows of the first elastic arms.

4. The connector assembly according to claim 1, characterized in that: The grounding member includes a base, an extension portion and a conductive portion, the extension portion extends from the base toward the main rib, the extension portion is located above the conductive portion and connected to the conductive portion, the signal terminal has an abutment portion abutting against the circuit board, the grounding terminal abuts against the corresponding extension portion, and after the first connector is docked with the second connector in the up and down direction, the projections of the conductive portion and the abutment portion in the left and right directions overlap.

5. The connector assembly according to claim 4, characterized in that: The grounding terminal includes a second main body portion and a contact portion and a second elastic arm extending downward from the second main body portion, the extension portion is bent and extended to have a lap portion near the main rib, the second elastic arm abuts against the lap portion along a first direction, the contact portion abuts against the conductive portion along a second direction, and the first direction is not parallel to the second direction.

6. The connector assembly according to claim 4, characterized in that: An insulating member is injection molded on the grounding member, and the insulating member has a main body portion for fixing the base portion and a protrusion portion for fixing the extension portion. The main body portion is fixed to the second insulating body, and the first insulating body has a plurality of grooves for docking with the second connector, and the grooves cooperate with the protrusion for positioning.

7. The connector assembly according to claim 6, characterized in that: The partition rib is provided with a notch near the protrusion, the first insulating body also includes a bump, the groove is located between the two bumps, the notch gives way to the bump, and the bump is stopped by the body and the partition rib in the front and rear directions respectively, and by the protrusion in the left and right directions.

8. The connector assembly according to claim 1, characterized in that: The signal terminal includes a first main body and a first connecting portion extending from the first main body, the ground terminal includes a second main body, a second connecting portion and a shielding portion, the second connecting portion connects the second main body and the shielding portion, the first connecting portion is parallel to the second connecting portion, the first connector includes a plurality of cables, each cable includes a signal wire welded to the first connecting portion and a ground wire welded to the second connecting portion, the shielding portion is perpendicular to the second connecting portion and blocks the ground wire.

9. The connector assembly according to claim 1, characterized in that: The grounding terminal has a second elastic arm and a shielding portion, the second elastic arm abuts against the grounding piece, the first elastic arm and the second elastic arm are staggered in the front-to-back direction, and the projection of the shielding portion in the left-to-right direction at least partially overlaps with the projection of the first elastic arm in the left-to-right direction; after the first connector is docked with the second connector, the partition rib is only located between the two first elastic arms of the differential signal terminal pair, and there is no partition rib between the first elastic arm and the second elastic arm.

10. The connector assembly according to claim 1, characterized in that: The conductive part is plate-shaped and includes a plurality of protrusions and a plurality of recesses, which are alternately arranged in a row. A plastic part is fixed on the ground terminal, and the recess is positioned in cooperation with the plastic part. The recess faces the ground terminal along the front-to-back direction, and the protrusion faces the signal terminal along the front-to-back direction.

11. The connector assembly according to claim 1, characterized in that: There is a spacing space between the partition rib and the front wall or the rear wall, and an insulating part is injection molded on the grounding part. The insulating part has a main body and a protrusion extending from the main body toward the main rib. The main body is positioned in the spacing space, and at least one partition rib is against the main body along the direction close to the front wall or the rear wall, and the protrusion is located between the two partition ribs.

12. The connector assembly according to claim 1, characterized in that: The main rib comprises a fixing portion protruding downward, the fixing portion is fixed downward to the circuit board, and the main rib and the partition rib are assembled and fixed to the second insulating body.

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