Electric connector combination

Abstract

The invention discloses an electric connector combination which is characterized in that the electric connector combination comprises a first electric connector which comprises a first body, a first signal terminal and a grounding terminal, the first body is provided with a slot, the grounding terminal comprises a first abutting part and a second abutting part, and the second abutting part is located at the tail end of the grounding terminal and connected with the first abutting part; the second electric connector comprises a plug, and the plug comprises a plurality of second signal terminals and at least one grounding unit; the plug is inserted downwards into the slot, the first signal terminal is connected with the second signal terminal, the first abutting part is exposed out of the slot and abuts against the grounding unit in the front-back direction, and the second abutting part is contained in the slot and abuts against the grounding unit in the up-down direction. And the tail end of the grounding terminal is positioned in a grounding loop, so that a new interference source cannot be formed.

Description

[Technical field]

[0001] The invention relates to an electric connector assembly, in particular to an electric connector assembly for transmitting high-frequency signals. [Background technology]

[0002] With the improvement of server performance, the requirements for high-frequency signal transmission performance of electrical connectors are getting higher and higher. Nowadays, the high-frequency transmission rate requirement has reached 128Gbps. At such a high transmission rate, how to reduce the interference of other signals to the signal terminals is a difficulty.

[0003] In traditional plug and socket type electrical connectors, ground terminals are arranged on both sides of the differential signal terminal pair, and an elastic abutting portion is provided on the ground terminal to abut against the docking element to form a grounding loop. However, this elastic abutting portion is a certain distance away from the end of the grounding terminal, so that the end of the grounding terminal is not in the grounding loop. When the signal transmission rate is very high, these ends are prone to accumulate induced current to form a new interference source that affects the signal terminal.

[0004] Therefore, it is necessary to design a new electrical connector assembly to overcome the above problems. [Summary of the invention]

[0005] The purpose of the present invention is to provide an electrical connector combination, wherein the grounding terminal of the first electrical connector includes a first abutment portion and a second abutment portion, the first abutment portion and the second abutment portion are both abutted against the first connector, and the second abutment portion is located at the end of the grounding terminal and connected to the first abutment portion, thereby avoiding the formation of a new interference source at the end.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An electrical connector combination, characterized in that it includes: a first electrical connector, including a first body, a first signal terminal and a ground terminal accommodated in the first body, the first body including a front wall and a rear wall opposite to each other in the front-to-back direction, the first body is provided with a slot between the front wall and the rear wall, the ground terminal includes a fixing portion, a first abutting portion and a second abutting portion, the fixing portion is provided on the front wall or the rear wall, the first abutting portion is connected to the fixing portion, and the second abutting portion is located at the end of the ground terminal and is connected to the first abutting portion; a second electrical connector includes a plug, the plug includes a plurality of second signal terminals and at least one grounding unit; the second electrical connector is downwardly docked with the first electrical connector, the plug is downwardly inserted into the slot, the first signal terminal is connected to the second signal terminal, the first abutting portion is exposed in the slot and abuts against the grounding unit in the front-to-back direction, and the second abutting portion is accommodated in the slot and abuts against the grounding unit in the up-down direction.

[0008] Furthermore, the first electrical connector includes a conductive support member, the fixed portion is fixed to the conductive support member, the conductive support member includes a main body portion, the main body portion has a supporting portion exposed in the slot, the grounding terminal includes a conductive portion extending out of the first body, the conductive portion is connected to the fixed portion for connecting to a circuit board, the supporting portion supports and abuts the second abutting portion upward, and the main body portion is electrically connected to the conductive portion downward.

[0009] Furthermore, the first electrical connector includes a conductive support member, which includes a main body and a plurality of shielding portions extending upward from the main body, two adjacent first signal terminals form a differential signal terminal pair, and the differential signal terminal pair is located between two adjacent shielding portions, the fixed portion is fixed to the upper end of the shielding portion, and the first abutting portion is bent downward and extended from the fixed portion, the first abutting portion overlaps with the projection of the shielding portion along the front-to-back direction, and there is a clearance space between the first abutting portion and the shielding portion, and the first abutting portion is elastically abutted against the grounding unit.

[0010] Furthermore, there is a gap between the main body and the conductive part. When the conductive part is soldered to the circuit board, the solder enters the gap through the conductive part, and the main body and the conductive part are electrically connected through the solder.

[0011] Furthermore, the first electrical connector includes a shielding member, which includes a main body and a plurality of shielding portions extending from the main body, two adjacent first signal terminals form a differential signal terminal pair, each shielding portion corresponds to a differential signal terminal pair, each shielding portion includes two first shielding portions, and a projection of each first shielding portion along the front-to-back direction overlaps with a projection of a corresponding first signal terminal along the front-to-back direction.

[0012] Furthermore, the shielding portion further includes a second shielding portion, the second shielding portion is vertically connected to the first shielding portion, and the second shielding portion is located between two adjacent pairs of differential signal terminals.

[0013] Furthermore, the first electrical connector includes a conductive support member, the fixed portion is fixed to the conductive support member, the conductive support member includes a plurality of shielding portions, the shielding portion extends upward from the main body portion, the shielding portion has a wide portion, a gradient portion, and a narrow portion from bottom to top, the width of the wide portion along the left-right direction is greater than the width of the narrow portion along the left-right direction, the second shielding portion has a lap portion that extends downward beyond the first shielding portion, and the lap portion abuts against the gradient portion.

[0014] Furthermore, the first electrical connector includes a conductive support member, the conductive support member includes a plurality of shielding portions, the fixed portion is fixedly disposed on the shielding portion, the shielding portion extends upward from the main body portion, each of the shielding portions includes two second shielding portions, the two second shielding portions are located on both sides of the differential signal terminal pair, each second shielding portion is vertically connected to a first shielding portion, a groove is provided between two adjacent second shielding portions belonging to different shielding portions, the shielding portion is accommodated in the groove, and the fixed portion abuts against the shielding member.

[0015] Furthermore, the front wall or the rear wall has a plurality of insulating partition ribs extending toward the slot, the insulating partition ribs are located between two adjacent first signal terminals of a differential signal terminal pair, an insulating cap extends from the upper end of the insulating partition rib, the width of the insulating cap along the left-right direction is greater than the width of the differential signal terminal pair along the left-right direction, the first signal terminal includes a contact portion and a guide section extending upward from the contact portion, the contact portion contacts the second signal terminal, the guide section is located at the end of the first signal terminal, the insulating cap completely shields the guide section along the up-down direction, each of the shielding portions includes two second shielding portions, the two second shielding portions are located on both sides of the differential signal terminal pair, and the two second shielding portions are positioned on both sides of the insulating cap.

[0016] Furthermore, the first electrical connector includes a conductive support member, which includes a plurality of shielding portions, wherein the shielding portions extend upward from the main body portion, the differential signal terminal pair is located between two adjacent shielding portions, and the second shielding portion exceeds the shielding portion in a direction close to the slot.

[0017] Furthermore, the front wall or the rear wall has a plurality of insulating partition ribs extending toward the slot, the insulating partition ribs are located between two adjacent first signal terminals of a differential signal terminal pair, a positioning groove is provided between two adjacent first shielding parts of the same shielding part, and the insulating partition ribs are positioned in the positioning groove.

[0018] Furthermore, the shielding member includes a connecting portion that enters the positioning groove, the connecting portion connects two adjacent first shielding portions of the same shielding portion, the thickness of the connecting portion along the front-to-back direction is smaller than the thickness of the first shielding portion along the front-to-back direction, and a notch is provided on the insulating partition rib, and the connecting portion is positioned in the notch.

[0019] Furthermore, the plug includes two surfaces opposite to each other in the front-to-back direction, the grounding unit is provided with a plurality of docking portions on the surfaces, the docking portions are located between two adjacent second signal terminals, each of the docking portions includes two side rails perpendicular to the surfaces and a contact surface connecting the two side rails, the two side rails and the contact surface are surrounded by a groove, and the first abutting portion enters the groove and abuts against the contact surface.

[0020] Furthermore, the first electrical connector includes a shielding member, which includes a main body and a plurality of second shielding portions extending from the main body, two adjacent first signal terminals form a differential signal terminal pair, two second shielding portions are provided between the two adjacent differential signal terminal pairs, a docking groove is provided between the two second shielding portions, and the two side rails are positioned in the docking groove.

[0021] Furthermore, there are multiple second abutment portions, and the multiple second abutment portions are integrally connected by a connecting bridge, the connecting bridge includes multiple welding portions, the width of the welding portions along the front-to-back direction is greater than the width of other positions of the connecting bridge, and the first electrical connector includes a conductive support member, and the welding portions are welded to the conductive support member.

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

[0023] When the electrical connector transmits high-frequency signals, the ground terminal is in a constantly changing electric field, and an induced current will be generated on the ground terminal. At this time, the end of the ground terminal is not in the ground loop, and the induced current will gather at the end to form a new interference source. The second abutment portion is provided at the end of the ground terminal. While increasing the ground loop, it can also guide the induced current formed at the end of the ground terminal to avoid the induced current gathering to form an interference source. On the other hand, the abutment direction between the first abutment portion and the ground unit and the abutment direction between the second abutment portion and the ground unit are perpendicular. When the plug is inserted into the slot, the abutment between the first abutment portion and the ground unit will not affect the abutment between the second abutment portion and the ground unit.

Brief Description of the Drawings

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

[0025] Figure 2 for Figure 1 A schematic diagram of a first electrical connector and a second electrical connector before being connected;

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

[0027] Figure 4 for Figure 1 A cross-sectional view of

[0028] Figure 5 It is a schematic diagram of the first electrical connector after removing the first body;

[0029] Figure 6 It is a schematic diagram of the first electrical connector after removing the shielding member;

[0030] Figure 7 for Figure 1A cross-sectional view from another perspective;

[0031] Figure 8 for Figure 2 A magnified view of point A;

[0032] Description of the accompanying drawings for the specific implementation:

[0033] First electrical connector 100 First ontology 1 Front wall 11 Back wall 12 Slot 13 Insulating partition rib 14 Insulation cap 141 Gap 142 First signal terminal 2 Contact Department 21 Guide section 22 Ground terminal 3 Fixing portion 31 The first fixing portion 311 The second fixing portion 312 The first contact portion 32 The second contact portion 33 Guide portion 34 Make room 35 Connection Bridge 36 Welding section 361 Conductive support 4 Main body part 41 Supporting portion 411 Shielding portion 42 Wide section 421 Gradient section 422 Narrow part 423 Gap 43 Shielding 5 Main body 51 Shielding portion 52 The first shielding portion 521 The second shielding portion 522 Overlap 5221 Positioning slot 523 Groove 524 Docking slot 525 Connection part 526 The second electrical connector 200 Plug 6 The second signal terminal 61 Ground unit 62 Docking section 621 Sidebar 6211 Contact surface 6212 Groove 6213 Circuit board 7 [Specific implementation method]

[0034] 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.

[0035] The electrical 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, and the upward direction as the positive direction of the Z-axis.

[0036] refer to Figure 1 and Figure 2 The present invention provides an electrical connector combination, including a first electrical connector 100 and a second electrical connector 200 that can be mated with each other, the second electrical connector 200 includes a plug 6, the plug 6 includes a second signal terminal 61 and a grounding unit 62, and the plug 6 is inserted into the first electrical connector 100.

[0037] refer to Figure 3 The first electrical connector 100 includes a first body 1, first signal terminals 2 and ground terminals 3 accommodated in the first body 1, a conductive support member 4 and a shielding member 5. The first body 1 includes a front wall 11 and a rear wall 12 opposite to each other in the front-to-back direction. The first body 1 is provided with a slot 13 between the front wall 11 and the rear wall 12. The plug 6 is inserted into the slot 13. Two adjacent first signal terminals 2 form a differential signal terminal pair.

[0038] refer to Figure 3 and Figure 4 The conductive support member 4 includes a main body 41 and a plurality of shielding portions 42 extending upward from the main body 41. The upper end of the main body 41 has a support portion 411, and the differential signal terminal pair is located between two adjacent shielding portions 42. The ground terminal 3 includes a fixing portion, a first abutting portion 32, a second abutting portion 33, and a conductive portion 34. The fixing portion includes a first fixing portion 311 and a second fixing portion 312. The first fixing portion 311 is fixed to the main body 41 by laser spot welding or the like, and the second fixing portion 312 is fixed to the shielding portion 42 and is located at the upper end of the shielding portion 42. The second fixing portion 312 can be fixed to the shielding portion 42 by spot welding or the like, or can be fixed by clamping the shielding member 5 and the shielding portion 42.

[0039] The first fixing portion 311 is bent and extended downward to form the conductive portion 34. The conductive portion 34 is used to be welded downward to a circuit board 7. A gap 43 is provided between the conductive portion 34 and the main body 41. When the conductive portion 34 is welded to the circuit board 7, the solder will enter the gap 43 through the conductive portion 34, and the main body 41 and the conductive portion 34 are electrically connected through the solder.

[0040] The second fixing portion 312 is bent and extended downward to form a first abutting portion 32. The projection of the first abutting portion 32 and the shielding portion 42 along the front-to-back direction overlaps. There is a clearance space 35 between the first abutting portion 32 and the shielding portion 42. The first abutting portion 32 enters into the slot 13 and elastically abuts against the grounding unit 62 in the front-to-back direction.

[0041] The second abutting portion 33 is located at the end of the grounding terminal 3 and connected to the first abutting portion 32. The second abutting portion 33 abuts against the grounding unit 62 upwards and against the supporting portion 411 downwards. Each second abutting portion 33 is located between two adjacent differential signal terminal pairs. Figure 5 and Figure 8 , multiple second abutment portions 33 are integrally connected by a connecting bridge 36, the connecting bridge 36 includes multiple welding portions 361, and the width of the welding portion 361 along the front-to-back direction is greater than the width of other positions of the connecting bridge 36, the welding portion 361 is welded to the conductive support member 4 by laser spot welding, that is, in this embodiment, the second abutment portion 33 is fixed to the support portion 411 by the welding portion 361 of the connecting bridge 36. In this case, because the connecting bridge 36 is integrally connected to the second abutment portion 33, the welding portion 361 can also be regarded as a part of the second abutment portion 33, and the second abutment portion 33 is welded and fixed to the conductive support member 4.

[0042] refer to Figure 3 and Figure 5 The shielding member 5 is assembled and fixed to the first body 1 and the conductive support member 4 from top to bottom. The shielding member 5 includes a main body 51 and a plurality of shielding parts extending from the main body 51. One shielding part corresponds to a differential signal terminal pair. Each shielding part includes two first shielding parts 521 and two second shielding parts 522. The second shielding parts 522 are vertically connected to the first shielding parts 521. A positioning groove 523 is provided between two adjacent first shielding parts 521 of the same shielding part, a groove 524 is provided between two adjacent second shielding parts 522 belonging to different shielding parts, and a docking groove 525 is provided between two adjacent second shielding parts 522 of the same shielding part.

[0043] The projection of each first shielding portion 521 along the front-to-back direction overlaps with the projection of the corresponding first signal terminal 2 along the front-to-back direction, and the second shielding portion 522 is located between two adjacent differential signal terminal pairs, or the two second shielding portions 522 are respectively located on the left and right sides of a differential signal terminal pair. This design enables the first shielding portion 521 to shield the differential signal terminal pair along the front-to-back direction, and the second shielding portion 522 to shield the differential signal terminal pair along the left-to-right direction, thereby improving the shielding effect of the shielding component 5 on the differential signal terminal pair.

[0044] The shielding member 5 also includes a connecting portion 526 extending downward from the main body portion 51, the connecting portion 526 enters the positioning groove 523 to partially block the positioning groove 523, the connecting portion 526 connects two adjacent first shielding portions 521 of the same shielding portion, and the thickness of the connecting portion 526 along the front-to-back direction is less than the thickness of the first shielding portion 521 along the front-to-back direction.

[0045] refer to Figure 5 The second shielding portion 522 has a lap portion 5221 that extends downwardly beyond the first shielding portion 521. The shielding portion 42 has a wide portion 421, a gradient portion 422, and a narrow portion 423 from bottom to top. The width of the wide portion 421 along the left-right direction is greater than the width of the narrow portion 423 along the left-right direction. The shielding portion 42 is accommodated in the groove 524. After the shielding component 5 is assembled to the first body 1 and the conductive support component 4, the lap portion 5221 abuts against the gradient portion 422, and the first fixing portion 311 abuts against the shielding component 5. It should be noted that in some embodiments, it is not necessary for each lap portion 5221 to abut against the gradient portion 422. It is sufficient that at least one lap portion 5221 abuts against the gradient portion 422.

[0046] refer to Figure 8 Because the second shielding portion 522 and the shielding portion 42 cooperate with each other to shield the first signal terminal 2 in the left and right directions, in order to increase the shielding range of the two and make the shielding effect of the two better, it can be seen that in the direction close to the slot 13, the second shielding portion 522 exceeds the shielding portion 42.

[0047] refer to Figure 6 and Figure 8, the front wall 11 or the rear wall 12 has a plurality of insulating partition ribs 14 extending toward the slot 13, the insulating partition rib 14 is located between two adjacent first signal terminals 2 of a differential signal terminal pair, specifically, the insulating partition rib 14 is positioned at the positioning groove 523 between two adjacent first shielding portions 521. An insulating cap 141 extends from the upper end of the insulating partition rib 14, the width of the insulating cap 141 along the left-right direction is greater than the width of the differential signal terminal pair along the left-right direction, so that the two second shielding portions 522 are actually positioned on both sides of the insulating cap 141. The first signal terminal 2 includes a contact portion 21 and a guide section 22 extending upward from the contact portion 21, the contact portion 21 contacts the second signal terminal 61, the guide section 22 is located at the end of the first signal terminal 2, and the insulating cap 141 completely shields the guide section 22 along the up-down direction. A notch 142 is also provided on the insulating partition rib 14, and the connecting portion 526 is positioned at the notch 142.

[0048] refer to Figure 2 and Figure 7 The plug 6 includes two surfaces opposite to each other in the front-to-back direction, and the grounding unit 62 is provided with a plurality of docking portions 621 on the surface, and the docking portion 621 is located between two adjacent second signal terminals 61. Each docking portion 621 includes two side rails 6211 perpendicular to the surface and a contact surface 6212 connecting the two side rails 6211. The two side rails 6211 and the contact surface 6212 are surrounded by a groove 6213. After the first connector and the second connector are docked, the two side rails 6211 are positioned in the docking groove 525, and the first abutting portion 32 enters the groove 6213 and abuts against the contact surface 6212.

[0049] In summary, the present invention has the following effects:

[0050] 1. When the electrical connector transmits high-frequency signals, the grounding terminal 3 is in a constantly changing electric field, and an induced current is generated on the grounding terminal 3. At this time, the end of the grounding terminal 3 is not in the grounding loop, and the induced current will gather at the end to form a new interference source. The second abutting portion 33 is provided at the end of the grounding terminal 3. While increasing the grounding loop, it can also guide the induced current formed at the end of the grounding terminal 3 to avoid the induced current gathering to form an interference source. On the other hand, the abutting direction of the first abutting portion 32 and the grounding unit 62 and the abutting direction of the second abutting portion 33 and the grounding unit 62 are perpendicular. When the plug 6 is inserted into the slot 13, the abutment of the first abutting portion 32 and the grounding unit 62 will not affect the abutment of the second abutting portion 33 and the grounding unit 62.

[0051] 2. In addition to passing through the first abutting portion 32, the second abutting portion 33 and the fixing portion 31 of the grounding terminal 3 to reach the conducting portion 34, the current on the grounding unit 62 can also pass through the second abutting portion 33 and the main body portion 41 to reach the conducting portion 34, thereby shortening and increasing the grounding loop. In addition, the supporting portion 411 supports the second abutting portion 33 upward, so that the second abutting portion 33 is supported by the supporting portion 411 when abutting against the insert and will not be deformed.

[0052] 3. A gap 43 is provided between the conductive portion 34 and the main body 41 to allow solder to enter the gap 43 to connect the main body 41 and the conductive portion 34. This is because if the conductive portion 34 and the main body 41 are directly welded, due to process problems, the conductive portion 34 and the main body 41 cannot be completely attached together, and there must be a gap between the two, causing noise to interfere with the signal terminal through these gaps. A gap 43 is deliberately provided to utilize the siphon effect during the soldering process to allow solder to crawl into the gap through the conductive portion 34. The liquid solder can easily fill the gap 43. After the conductive portion 34 is welded, the conductive portion 34 and the main body 41 are not only electrically connected through the solder, but the gap between the two is also filled with solder, further reducing the interference of noise on the signal terminal.

[0053] 4. The differential signal terminal pair is separated by the shielding portion 42 to shield the differential signal terminal pair. On the other hand, when the first abutting portion 32 abuts against the grounding unit 62, the clearance space 35 can make way for the first abutting portion 32, so that the elastic deformation of the first abutting portion 32 is not affected. The upper end of the shielding portion 42 is fixed to the fixing portion, and the fixing portion is connected to the first abutting portion 32. This allows the grounding member to be fixed by the shielding portion 42 as a whole when the first abutting portion 32 is elastically deformed, and no displacement will occur.

[0054] 5. Multiple second abutting portions 33 are connected via a connecting bridge 36 so that the multiple second abutting portions 33 have a common potential to reduce resonance and other electrical interference. In addition, a welding portion 361 on the connecting bridge 36 is welded to the conductive support member 4, so that the second abutting portion 33 can be fixed on the conductive support member 4 and will not move when abutting against the grounding unit 62 to cause poor contact. At the same time, the width of the welding portion 361 is greater than that of other parts of the conductive bridge to facilitate welding.

[0055] 6. The insulating cap 141 completely shields the guide section 22 in the up-down direction so that the plug 6 will not touch the end of the first signal terminal 2 when inserted into the slot 13, thereby preventing the first signal terminal 2 from warping. In addition, when the shielding member 5 is inserted, the two second shielding portions 522 are positioned on both sides of the insulating cap 141, and the width of the insulating cap 141 in the left-right direction is greater than the width of the differential signal terminal pair in the left-right direction, so that the second shielding portions 522 will not touch the first signal terminal 2 and cause a short circuit.

[0056] 7. The insulating separation rib 14 is located between the two first signal terminals 2 of the same differential signal terminal pair, which can increase the dielectric constant between the two first signal terminals, increase the capacitance between the two first signal terminals, and then weaken the signal emitted by the signal terminal to the outside, and finally reduce the crosstalk between different differential signal terminal pairs. The insulating separation rib 14 can also be used to position the shielding component 5.

[0057] 8. A connecting portion 526 is provided on the shielding member 5. The connecting portion 526 enters the positioning groove to block part of the positioning groove 523 to enhance the shielding effect of the shielding member 5. On the other hand, the connecting portion 526 can cooperate with the notch 142 on the insulating partition rib 14 for positioning. If the thickness of the connecting portion 526 is less than the thickness of the first shielding portion 521 along the front-to-back direction, the volume of the notch 142 can be reduced, thereby ensuring the structural strength of the insulating partition rib 14.

[0058] 9. The side rail 6211 can reduce the crosstalk between the second signal terminals 61, and the corresponding groove 6213 can also position the first abutting portion 32 so that it can accurately abut against the contact surface 6212. After the first connector is connected to the second connector, the second shielding portion 522 can also cooperate with the side rail 6211 to separate the corresponding differential signal terminal pairs, thereby reducing the crosstalk between the first signal terminals 2 or between the second signal terminals 61.

[0059] The above detailed description is only an explanation of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector assembly, characterized in that: include: A first electrical connector comprises a first body, a first signal terminal and a ground terminal received in the first body, the first body comprises a front wall and a rear wall opposite to each other in a front-to-rear direction, the first body is provided with a slot between the front wall and the rear wall, the ground terminal comprises a fixing portion, a first abutting portion and a second abutting portion, the fixing portion is provided on the front wall or the rear wall, the first abutting portion is connected to the fixing portion, and the second abutting portion is located at a terminal end of the ground terminal and is connected to the first abutting portion; A second electrical connector, comprising a plug, wherein the plug comprises a plurality of second signal terminals and at least one grounding unit; The second electrical connector is docked downward with the first electrical connector, the plug is inserted downward into the slot, the first signal terminal is connected to the second signal terminal, the first abutment portion is exposed in the slot and abuts against the grounding unit along the front-to-back direction, and the second abutment portion is accommodated in the slot and abuts against the grounding unit along the up-down direction.

2. The electrical connector assembly according to claim 1, characterized in that: The first electrical connector includes a conductive support member, the fixing portion is fixed to the conductive support member, the conductive support member includes a main body portion, the main body portion has a supporting portion exposed in the slot, the grounding terminal includes a conductive portion extending out of the first body, the conductive portion is connected to the fixing portion for connecting to a circuit board, the supporting portion supports and abuts the second abutting portion upward, and the main body portion is electrically connected to the conductive portion downward.

3. The electrical connector assembly according to claim 2, characterized in that: There is a gap between the main body and the conductive part. When the conductive part is soldered to the circuit board, the solder enters the gap through the conductive part, and the main body and the conductive part are electrically connected through the solder.

4. The electrical connector assembly according to claim 1, wherein: The first electrical connector includes a conductive support member, which includes a main body and a plurality of shielding portions extending upward from the main body. Two adjacent first signal terminals form a differential signal terminal pair, and the differential signal terminal pair is located between two adjacent shielding portions. The fixed portion is fixed to the shielding portion and is located at the upper end of the shielding portion. The fixed portion is bent downward and extended to form the first abutting portion. The first abutting portion overlaps with the projection of the shielding portion along the front-to-back direction, and there is a clearance space between the first abutting portion and the shielding portion. The first abutting portion elastically abuts against the grounding unit.

5. The electrical connector assembly according to claim 1, wherein: The first electrical connector includes a shielding member, which includes a main body and a plurality of shielding portions extending from the main body. Two adjacent first signal terminals form a differential signal terminal pair. Each shielding portion corresponds to a differential signal terminal pair. Each shielding portion includes two first shielding portions. The projection of each first shielding portion along the front-to-back direction overlaps with the projection of a corresponding first signal terminal along the front-to-back direction.

6. The electrical connector assembly according to claim 5, characterized in that: The shielding portion further includes a second shielding portion, the second shielding portion is vertically connected to the first shielding portion, and the second shielding portion is located between two adjacent pairs of differential signal terminals.

7. The electrical connector assembly according to claim 6, characterized in that: The first electrical connector includes a conductive support member, the fixing portion is fixed to the conductive support member, the conductive support member includes a plurality of shielding portions, the shielding portion extends upward from the main body portion, the shielding portion has a wide portion, a gradient portion, and a narrow portion from bottom to top, the width of the wide portion along the left-right direction is greater than the width of the narrow portion along the left-right direction, the second shielding portion has a lap portion extending downward beyond the first shielding portion, and the lap portion abuts against the gradient portion.

8. The electrical connector assembly according to claim 6, wherein: The first electrical connector includes a conductive support member, which includes a plurality of shielding parts. The fixed part is fixed to the shielding part. The shielding part extends upward from the main body. Each of the shielding parts includes two second shielding parts. The two second shielding parts are located on both sides of the differential signal terminal pair. Each second shielding part is vertically connected to a first shielding part. A groove is provided between two adjacent second shielding parts belonging to different shielding parts. The shielding part is accommodated in the groove. The fixed part abuts against the shielding member.

9. The electrical connector assembly according to claim 6, wherein: The front wall or the rear wall extends toward the slot to have a plurality of insulating partition ribs, the insulating partition ribs are located between two adjacent first signal terminals of a differential signal terminal pair, an insulating cap extends from the upper end of the insulating partition rib, the width of the insulating cap along the left-right direction is greater than the width of the differential signal terminal pair along the left-right direction, the first signal terminal includes a contact portion and a guide section extending upward from the contact portion, the contact portion contacts the second signal terminal, the guide section is located at the end of the first signal terminal, the insulating cap completely shields the guide section along the up-down direction, each of the shielding portions includes two second shielding portions, the two second shielding portions are located at both sides of the differential signal terminal pair, and the two second shielding portions are positioned at both sides of the insulating cap.

10. The electrical connector assembly according to claim 6, characterized in that: The first electrical connector includes a conductive support member, which includes a plurality of shielding portions, the shielding portions extending upward from the main body portion, the differential signal terminal pair being located between two adjacent shielding portions, and the second shielding portion exceeding the shielding portion in a direction close to the slot.

11. The electrical connector assembly according to claim 5, characterized in that: The front wall or the rear wall extends toward the slot with a plurality of insulating partition ribs, the insulating partition ribs are located between two adjacent first signal terminals of a differential signal terminal pair, a positioning groove is provided between two adjacent first shielding parts of the same shielding part, and the insulating partition ribs are positioned in the positioning groove.

12. The electrical connector assembly according to claim 11, wherein: The shielding member includes a connecting portion that enters the positioning groove, the connecting portion connects two adjacent first shielding portions of the same shielding portion, the thickness of the connecting portion along the front-to-back direction is smaller than the thickness of the first shielding portion along the front-to-back direction, and a notch is provided on the insulating partition rib, and the connecting portion is positioned in the notch.

13. The electrical connector assembly according to claim 1, wherein: The plug includes two surfaces opposite to each other in the front-to-back direction, the grounding unit is provided with a plurality of docking parts on the surfaces, the docking parts are located between two adjacent second signal terminals, each of the docking parts includes two side rails perpendicular to the surfaces and a contact surface connecting the two side rails, the two side rails and the contact surface are surrounded by a groove, and the first abutting part enters the groove and abuts against the contact surface.

14. The electrical connector assembly according to claim 13, characterized in that: The first electrical connector includes a shielding member, which includes a main body and a plurality of second shielding portions extending from the main body. Two adjacent first signal terminals form a differential signal terminal pair. Two second shielding portions are provided between the two adjacent differential signal terminal pairs. A docking groove is provided between the two second shielding portions. The two side rails are positioned in the docking groove.

15. The electrical connector assembly according to claim 1, wherein: There are multiple second abutment portions, and the multiple second abutment portions are integrally connected by a connecting bridge. The connecting bridge includes multiple welding portions. The width of the welding portions along the front-to-back direction is greater than the width of other positions of the connecting bridge. The first electrical connector includes a conductive support member, and the welding portions are welded to the conductive support member.

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