Wire end connector and connector assembly

Abstract

The utility model provides a wire end connector and a connector assembly, and relates to the technical field of connectors, the wire end connector comprises a first insulation main body, the first insulation main body is internally provided with an accommodating cavity, the accommodating cavity is internally provided with an electric connection plugboard, two sides of the electric connection plugboard are respectively provided with a terminal group, and each terminal group is electrically connected with a cable group; the first grounding part and the second grounding part are arranged on the sides, close to each other, of the two terminal groups respectively and electrically connected with the grounding terminals in the two terminal groups respectively; the problem that the anti-crosstalk capability of a connector in the prior art is insufficient is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and more specifically, relates to a line end connector and a connector assembly. Background Art

[0002] At present, as the signal transmission requirements of connectors increase, the requirements for the crosstalk index of connectors also become higher, and it becomes more and more important to improve the anti-crosstalk performance of connectors. Each row of terminal groups in the connector includes multiple ground terminals and multiple signal terminals, and there is at least one signal terminal between two adjacent ground terminals. For such connectors, how to reduce the crosstalk of signals is an urgent problem to be solved. Utility Model Content

[0003] The purpose of the utility model is to provide a line end connector and a connector assembly to solve the problem of insufficient anti-crosstalk capability of the connector in the prior art in view of the deficiencies in the prior art.

[0004] In order to achieve the above object, the utility model provides a line end connector, comprising:

[0005] A first insulating body, wherein a receiving cavity is provided inside the first insulating body, an electrical connection plug board is provided in the receiving cavity, terminal groups are provided on both sides of the electrical connection plug board, and each of the terminal groups is electrically connected to a cable group;

[0006] The first grounding component and the second grounding component are respectively arranged on one side of the two terminal groups close to each other and are respectively electrically connected to the grounding terminals in the two terminal groups.

[0007] Optionally, the first grounding component and the second grounding component are electrically connected at sides close to each other.

[0008] Optionally, an isolation plate is provided between the first grounding component and the second grounding component.

[0009] Optionally, the isolation plate is a conductor, and the isolation plate is electrically connected to the first grounding component and the second grounding component.

[0010] Optionally, the electrical connection board includes a first injection molded body, at least part of the terminal group is embedded in the first injection molded body, and at least part of the surfaces of the two terminal groups that are away from each other are exposed on both side surfaces of the first injection molded body.

[0011] Optionally, one end of the terminal group is connected to the cable group, a contact portion is provided in the middle of the terminal group, the first injection molded body is provided with a first hollow portion, and at least part of the contact portions of at least part of the terminals in the terminal group are provided within the hollow range of the first hollow portion.

[0012] Optionally, the first grounding component includes a front-end grounding plate and a rear-end grounding plate, which are respectively connected to a position of the grounding terminal away from the cable group and a position close to the cable group, and a gap is formed between the front-end grounding plate and the rear-end grounding plate.

[0013] Optionally, the front end grounding plate and the rear end grounding plate are both wall-shaped bent plates, the trough position of the rear end grounding plate is connected to the grounding terminal, and the peak position of the rear end grounding plate and the transition position between the peak position and the trough position are provided with a second hollow portion.

[0014] Optionally, the width of the front grounding plate and the rear grounding plate at the trough position is smaller than the width at the peak position.

[0015] Optionally, the isolation plate is in the shape of a flat plate, and is provided with through holes and / or an uneven surface.

[0016] Optionally, each of the terminal groups includes a plurality of the ground terminals and a plurality of signal terminals arranged in a row, each of the cable groups includes a plurality of cables, each of the cables includes at least one signal core and at least one ground core, the signal core of each cable and the signal terminal electrically connected thereto form a signal transmission unit, and at least one ground terminal is arranged between two adjacent signal units.

[0017] Optionally, the terminal group is welded to the plurality of cables to form a welding portion, and at least a portion of the welding portion is exposed from the first injection molding body.

[0018] Optionally, each of the cables includes a pair of signal cores and a pair of ground cores, the pair of signal cores are connected to a pair of adjacent signal terminals, the pair of ground cores are respectively located on both sides of the pair of signal cores, and the pair of ground cores are respectively connected to the ground terminals located on both sides of a pair of adjacent signal terminals.

[0019] Optionally, a guide bar is further included, and the guide bar is a second injection molded body or an assembly body, and the guide bar is arranged at one end of the first injection molded body away from the cable group, and the end of the guide bar away from the first injection molded body is provided with a chamfer.

[0020] Optionally, a plug-in portion is provided at the bottom of one side of the first insulating body, and a lock buckle is provided on the outer side of the plug-in portion, and the lock buckle includes a lock plate bent into a U shape, one side of the lock plate is snapped into a lock groove on the surface of the plug-in portion, and the other side of the lock plate is a free end and exposed, and the two lock protrusions are provided on the outer side of the other side of the lock plate.

[0021] The utility model also provides a connector assembly, comprising:

[0022] Board connector;

[0023] The line end connector described above.

[0024] Optionally, the board-side connector includes:

[0025] A second insulating body, wherein two electrical connection groups are arranged opposite to each other inside the second insulating body, a plug-in space is formed between the two electrical connection groups, and the electrical connection plug board is used to be inserted into the plug-in space and electrically connect the terminal group with the electrical connection group.

[0026] Optionally, each of the electrical connection groups includes a plurality of ground connection parts, a plurality of signal connection parts and a third grounding plate, the third grounding plate is electrically connected to the ground connection parts, and two third grounding plates are arranged on a side where the two electrical connection groups are close to each other.

[0027] Optionally, the mutually adjacent sides of the two third grounding plates are electrically connected.

[0028] Optionally, a fourth grounding plate is provided between the two third grounding plates, and the fourth grounding plate is electrically connected to the two third grounding plates.

[0029] Optionally, the third grounding plate is a wall-shaped bent plate, the fourth grounding plate is a U-shaped plate, and the outer sides of both ends of the fourth grounding plate are electrically connected to the wave crest positions of the two third grounding plates respectively.

[0030] Optionally, the board-side connector further includes:

[0031] A shell, the shell is sleeved on the outside of the second insulating body, a plug-in slot is formed between at least one of the front side surface and the rear side surface of the second insulating body and the shell, and a lock hole is opened on the shell as a slot wall of the plug-in slot;

[0032] A plug-in portion is provided at the bottom of one side of the first insulating body, a lock buckle is provided on the outer side of the plug-in portion, and the lock buckle includes a lock plate bent into a U shape, one side of the lock plate is clamped in a lock groove on the surface of the plug-in portion, and the other side of the lock plate is a free end and exposed, and two lock protrusions are provided on the outer side of the other side of the lock plate;

[0033] The inserting groove is plug-fitted with the inserting portion, and the locking protrusion is snap-fitted with the locking hole.

[0034] Optionally, a pair of adjacent signal connection parts forms a signal connection group, and adjacent signal connection groups in the same electrical connection group include a first signal connection group and a second signal connection group, the first signal connection group and the second signal connection group are alternately arranged, and at least part of the first signal connection group and at least part of the second signal connection group are staggered so that at least part of the first signal connection group and at least part of the second signal connection group are close to the plug-in space, and the other is far away from the plug-in space, and the ground connection part is arranged on both sides of the first signal connection group or on both sides of the second signal connection group.

[0035] Optionally, the first signal connection group in one of the electrical connection groups is close to the plug-in space, and the first signal connection group in another of the electrical connection groups is far from the plug-in space.

[0036] The utility model provides a line end connector and a connector assembly, which have the following beneficial effects: the line end connector is provided with an electrical connection plug board in the accommodating cavity of a first insulating body, a row of terminal groups are respectively provided on both sides of each electrical connection plug board, each terminal group is electrically connected to a cable group and can be used for signal transmission, the first grounding component and the second grounding component are provided to electrically connect all the grounding terminals in each row of terminal groups, which can improve the formation of anti-crosstalk between the terminal groups and does not affect the electrical connection of the terminal groups on the two side surfaces of the electrical connection plug board.

[0037] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0039] Figure 1 A schematic structural diagram of a line end connector according to an embodiment of the utility model is shown.

[0040] Figure 2 A schematic structural diagram of an electrical connection plugboard of a line end connector according to an embodiment of the utility model is shown.

[0041] Figure 3 A schematic structural diagram of a terminal group of a line end connector according to an embodiment of the utility model is shown.

[0042] Figure 4 A schematic structural diagram of a terminal group of a line end connector according to another embodiment of the utility model is shown.

[0043] Figure 5 Shows Figure 3 Schematic diagram of the decomposition structure.

[0044] Figure 6 Shows Figure 4 Schematic diagram of the decomposition structure.

[0045] Figure 7 A schematic diagram of the connection structure between a terminal group of a line end connector and a cable group according to an embodiment of the utility model is shown.

[0046] Figure 8 A structural schematic diagram of a connector assembly according to an embodiment of the utility model is shown.

[0047] Fig. 9 A schematic structural diagram of a board-end connector of a connector assembly according to an embodiment of the utility model is shown.

[0048] Fig.10 A schematic diagram of the internal structure of a board-end connector of a connector assembly according to an embodiment of the utility model is shown.

[0049] Fig.11 A schematic diagram of the internal structure of a board-end connector of a connector assembly according to another embodiment of the utility model is shown.

[0050] Description of reference numerals:

[0051] 1. First insulating body; 2. Electrical connection plug board; 3. Terminal group; 4. Cable group; 5. First grounding component; 6. Second grounding component; 7. Isolation plate; 8. First injection molding body; 9. First hollow portion; 10. Front grounding plate; 11. Rear grounding plate; 12. Second hollow portion; 13. Grounding terminal; 14. Signal terminal; 15. Signal wire core; 16. Grounding wire core; 17. Plug-in portion; 18. Locking buckle; 19. Locking protrusion; 20. Second insulating body; 21. Electrical connection group; 22. Grounding connection portion; 23. Signal connection portion; 24. Third grounding plate; 25. Fourth grounding plate; 26. Shell; 27. Locking hole; 28 First signal connection group; 29. ​​Second signal connection group; 30. Welding portion; 31. Guide strip. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0053] like Figure 1 and Figure 2 As shown, the utility model provides a line end connector, comprising:

[0054] A first insulating body 1, wherein a receiving cavity is provided inside the first insulating body 1, an electrical connection plug board 2 is provided in the receiving cavity, terminal groups 3 are provided on both sides of the electrical connection plug board 2, and each terminal group 3 is electrically connected to a cable group 4;

[0055] The first grounding component 5 and the second grounding component 6 are respectively arranged on one side of the two terminal groups 3 close to each other, and are respectively electrically connected to the grounding terminals 13 in the two terminal groups 3 .

[0056] Specifically, in order to solve the problem of insufficient anti-crosstalk capability of connectors in the prior art, the line end connector provided by the utility model is provided with an electrical connection board 2 in the accommodating cavity of the first insulating body 1, and a row of terminal groups 3 are respectively provided on both sides of each electrical connection board 2. Each terminal group 3 is electrically connected to a cable group 4 and can be used for signal transmission. The setting of the first grounding component 5 and the second grounding component 6 electrically connects all the grounding terminals 13 in each row of terminal groups 3, which can improve the formation of anti-crosstalk between the terminal groups 3 and does not affect the electrical connection of the terminal groups 3 on the two side surfaces of the electrical connection board 2.

[0057] Optionally, the first grounding component 5 and the second grounding component 6 are electrically connected at their sides close to each other.

[0058] Specifically, the first grounding component 5 and the second grounding component 6 are electrically connected to electrically connect all the grounding terminals 13 on the electrical connection board 2, thereby further improving the anti-crosstalk performance.

[0059] Optionally, an isolation plate 7 is provided between the first grounding component 5 and the second grounding component 6 .

[0060] Specifically, the isolation plate 7 can separate the two rows of terminal groups 3 from the first grounding component 5 and the second grounding component 6 at the position where the two rows of terminal groups 3 are connected, thereby reducing crosstalk.

[0061] Furthermore, the isolation plate 7 can be made of conductive material or insulating material, but the isolation plate 7 does not affect the electrical connection between the first grounding component 5 and the second grounding component 6. Therefore, if the isolation plate 7 is made of insulating material, a hollow opening or an embedded conductive component can be provided to ensure that the first grounding component 5 and the second grounding component 6 can be electrically connected.

[0062] Optionally, the isolation plate 7 is a conductor, and the isolation plate 7 is electrically connected to the first grounding component 5 and the second grounding component 6 .

[0063] Specifically, the isolation plate 7 can not only play an isolation role, but also strengthen the terminal group 3 as a whole, thereby strengthening the strength of the electrical connection plug board 2; the isolation plate 7 can be welded to the first grounding component 5.

[0064] In this embodiment, the material of the isolation plate 7 is the same as that of the first grounding member 5 .

[0065] Optionally, the electrical connection board 2 includes a first injection molded body 8 , in which at least a portion of the terminal group 3 is embedded, and at least a portion of the surfaces of the two terminal groups 3 that are away from each other are exposed on both side surfaces of the first injection molded body 8 .

[0066] Specifically, a part of the surface of the terminal group 3 is exposed, and is used for electrically connecting the terminal group 3 with the electrical connection group 21 of the board-end connector when the line segment connector is connected to the board-end connector.

[0067] In this embodiment, the first injection-molded body 8 is used to fix the terminal group 3 , and the exposed surface of the terminal group 3 is flush with the surface of the first injection-molded body 8 .

[0068] Optionally, one end of the terminal group 3 is connected to the cable group 4, a contact portion is provided in the middle of the terminal group 3, the first injection molded body 8 is provided with a first hollow portion 9, and at least part of the contact portions of at least part of the terminals in the terminal group 3 are provided within the hollow range of the first hollow portion 9.

[0069] Specifically, the first hollow portion 9 corresponds to a portion of the contact portion of the terminal group 3 , which is beneficial to the electrical connection quality between the terminal group 3 and the electrical connection group 21 .

[0070] In this embodiment, at least part of the contact portions of at least part of the signal terminals 14 are within the hollow range of the first hollow portion 9 , which can reduce the contact impedance of the signal terminals and improve the signal transmission quality.

[0071] In one embodiment, Figure 3 and Figure 5 As shown, the first grounding component 5 is an integrated grounding sheet, and the integrated grounding sheet is a sheet structure bent into a wall shape.

[0072] In another embodiment, Figure 4 and Figure 6 As shown, the first grounding component 5 includes a front-end grounding plate 10 and a rear-end grounding plate 11, which are respectively connected to the grounding terminal 13 at a position away from the cable group 4 and a position close to the cable group 4, and a gap is formed between the front-end grounding plate 10 and the rear-end grounding plate 11.

[0073] Furthermore, the second grounding component 6 may have the same structure as the first grounding component 5 .

[0074] Specifically, the first grounding component 5 includes a front-end grounding plate 10 and a rear-end grounding plate 11 which are independent of each other. The front-end grounding plate 10 and the rear-end grounding plate 11 are respectively connected to the front end and the rear end of the terminal group 3, and are spaced apart from each other. Such a setting can greatly improve the crosstalk in the performance of the line-end connector SI, namely the far-end crosstalk and the near-end crosstalk, and further improve its anti-crosstalk performance.

[0075] Optionally, the front end grounding plate 10 and the rear end grounding plate 11 are both wall-shaped bent plates, the trough position of the rear end grounding plate 11 is connected to the grounding terminal 13, and the peak position of the rear end grounding plate 11 and the transition position between the peak position and the trough position are provided with a second hollow portion 12.

[0076] Specifically, the front grounding sheet 10 is injection molded in the first injection molded body 8 , and the rear grounding sheet 11 has a second hollow portion 12 , which can accommodate the first injection molded body 8 to improve the stability of fixing the rear grounding sheet 11 .

[0077] Optionally, the width of the front grounding plate 10 and the rear grounding plate 11 at the trough position is smaller than the width at the peak position.

[0078] Specifically, no matter the front grounding plate 10 or the rear grounding plate 11 , the width of the trough position is smaller than the width of the respective crest position, and the crest position spans one side of the signal terminal 14 and forms a gap with the signal terminal 14 .

[0079] Optionally, the isolation plate 7 is in the shape of a flat plate, and the isolation plate 7 is provided with through holes and / or an uneven surface.

[0080] Specifically, the isolation plate 7 can be made of the same material as the first grounding component 5 and the second grounding component 6, and can be welded to the first grounding component 5 and the second grounding component 6; the through holes or uneven surfaces provided on the isolation plate 7 can improve the stability of the first injection molded body 8 fixing the isolation plate 7.

[0081] Optionally, each terminal group 3 includes a plurality of ground terminals 13 and a plurality of signal terminals 14 arranged in a row, each cable group 4 includes a plurality of cables, each cable includes at least one signal core 15 and at least one ground core 16, the signal core 15 of each cable and the signal terminal 14 electrically connected thereto form a signal transmission unit, and at least one ground terminal 13 is arranged between two adjacent signal units.

[0082] Specifically, each row of terminal groups 3 includes a plurality of ground terminals 13 and a plurality of signal terminals 14 arranged in a row. In each row of terminal groups 3 , the ground terminals 13 are located on both sides of the signal terminals 14 of each signal transmission unit.

[0083] Optionally, the terminal group 3 is welded to the plurality of cables to form a welding portion 30 , and at least a portion of the welding portion 30 is exposed from the first injection molded body 8 .

[0084] Specifically, the exposed soldering portion 30 can improve the impedance at the soldering point.

[0085] Optionally, each cable includes a pair of signal cores 15 and a pair of ground cores 16, the pair of signal cores 15 are connected to a pair of adjacent signal terminals 14, the pair of ground cores 16 are respectively located on both sides of the pair of signal cores 15, and the pair of ground cores 16 are respectively connected to the ground terminals 13 located on both sides of the pair of adjacent signal terminals 14.

[0086] Specifically, Figure 7 As shown, the cable group 4 includes a plurality of cables arranged in a row, each cable includes a pair of signal cores 15 and a pair of ground cores 16, the pair of ground cores 16 are arranged on both sides of the pair of signal cores 15 away from each other, the pair of signal cores 15 can form a differential signal pair, and the pair of ground cores 16 are connected to two ground terminals 13 on both sides of two signal terminals 14 connected to a differential signal pair; in this way, two ground cores 16 can be connected to each ground terminal 13.

[0087] Optionally, a guide bar 31 is further included. The guide bar 31 is a second injection molded body or an assembly. The guide bar 31 is arranged at one end of the first injection molded body 8 away from the cable group 4 . The end of the guide bar 31 away from the first injection molded body 8 is chamfered.

[0088] Specifically, the guide bar 31 can form a guide through the chamfer when the electrical connection board 2 is plugged in, which is beneficial to the plugging and unplugging of the line end connector; the guide bar 31 can be a second injection molded body or an assembly body, which is assembled with the first injection molded body 8.

[0089] In this embodiment, no matter the guide bar 31 is the second injection molded body or the assembly body, the structure of the end thereof close to the first injection molded body 8 is similar to the first assembly body, and the terminal group 3 can be at least partially exposed on both side surfaces of the guide bar 31 .

[0090] Optionally, a plug-in portion 17 is provided at the bottom of one side of the first insulating body 1, and a lock buckle 18 is provided on the outer side of the plug-in portion 17. The lock buckle 18 includes a locking plate bent into a U shape, one side of the locking plate is snapped into a locking groove on the surface of the plug-in portion 17, and the other side of the locking plate is a free end and exposed, and two locking protrusions 19 are provided on the outer side of the other side of the locking plate.

[0091] Specifically, the plug-in portion 17 is used to be inserted into the plug-in slot of the board-end connector when the line-end connector is connected to the board-end connector, forming a plug-in fit to ensure the stability of the connection; the locking plate bent into a U shape is elastic, and when the line-end connector is connected to the board-end connector, it is connected to the board-end connector through the lock buckle 18. When the other side of the lock plate is pressed, the locking protrusion 19 on the other side of the lock plate can be driven to retract from the locking hole 27 on the board-end connector, and the line-end connector can be pulled out at this time.

[0092] Furthermore, a drawstring is provided at the other end of the locking plate, and the lock buckle 18 can also be unlocked by pulling the drawstring.

[0093] like Figure 8 As shown, the utility model also provides a connector assembly, including:

[0094] Board connector;

[0095] The line end connector described above.

[0096] Optionally, the board-side connector includes:

[0097] The second insulating body 20 has two electrical connection groups 21 arranged inside thereof, and a plug-in space is formed between the two electrical connection groups 21 . The electrical connection board 2 is used to be inserted into the plug-in space and electrically connect the terminal group 3 to the electrical connection group 21 .

[0098] Specifically, Fig. 9 As shown, a plug-in space is formed between the two electrical connection groups 21 inside the second insulating body 20. When the line-end connector is connected to the board-end connector, the electrical connection board 2 is inserted into the plug-in space, and the two terminal groups 3 are respectively in contact with the two electrical connection groups 21 to achieve electrical connection, thereby enabling signal transmission.

[0099] Optionally, each electrical connection group 21 includes multiple ground connection parts 22, multiple signal connection parts 23 and a third grounding plate 24, the third grounding plate 24 is electrically connected to the ground connection part 22, and two third grounding plates 24 are arranged on the side where the two electrical connection groups 21 are close to each other.

[0100] Specifically, Fig.10 As shown, multiple grounding connection parts 22 and multiple signal connection parts 23 of each electrical connection group 21 are arranged in a row. When the line-end connector is connected to the board-end connector, the grounding connection part 22 and the signal connection part 23 are respectively connected to the grounding terminal 13 and the signal terminal 14. Each electrical connection group 21 is connected to a third grounding plate 24, and the third grounding plate 24 is connected to the multiple grounding connection parts 22 of the electrical connection group 21, which can improve the anti-crosstalk performance of the board-end connector.

[0101] Optionally, the mutually adjacent sides of the two third grounding plates 24 are electrically connected.

[0102] Specifically, the two third grounding plates 24 are electrically connected, which can further improve the anti-crosstalk performance of the board-side connector.

[0103] Optionally, a fourth grounding plate 25 is disposed between the two third grounding plates 24 , and the fourth grounding plate 25 is electrically connected to the two third grounding plates 24 .

[0104] Specifically, the fourth grounding plate 25 connects the two third grounding plates 24 and facilitates forming a plug-in space between the two electrical connection groups 21 .

[0105] Optionally, the third grounding plate 24 is a wall-shaped bent plate, the fourth grounding plate 25 is a U-shaped plate, and the outer sides of both ends of the fourth grounding plate 25 are electrically connected to the crest positions of the two third grounding plates 24 respectively.

[0106] Specifically, the U-shaped fourth grounding plate 25 opens upward, and surfaces at both ends of the fourth grounding plate 25 that are away from each other are electrically connected to surfaces at the crest positions of the two third grounding plates 24 , respectively. The third grounding bar can be welded to the fourth grounding plate 25 .

[0107] Optionally, the board-side connector further includes:

[0108] The outer shell 26 is sleeved on the outside of the second insulating body, and a plug-in slot is formed between at least one of the front side and the rear side of the second insulating body and the outer shell 26. The outer shell 26, which serves as a slot wall of the plug-in slot, is provided with a lock hole 27;

[0109] A plug-in portion 17 is provided at the bottom of one side of the first insulating body 1, and a lock buckle 18 is provided on the outer side of the plug-in portion 17. The lock buckle 18 includes a lock plate bent into a U shape, one side of the lock plate is clamped in a lock groove on the surface of the plug-in portion 17, and the other side of the lock plate is a free end and exposed to the outside, and two lock protrusions 19 are provided on the outer side of the other side of the lock plate;

[0110] The plug-in slot is plug-fitted with the plug-in portion 17 , and the locking protrusion 19 is snap-fitted with the locking hole 27 .

[0111] Specifically, the board-end connector forms a plug-in slot on one side of the second insulating body through the setting of the shell 26. When the line-end connector is inserted, its plate-shaped plug-in portion 17 is inserted into the plug-in slot to form a plug-in fit, which can ensure the stability of the plug-in. The lock buckle 18 realizes the card connection between the line-end connector and the board-end connector through the cooperation of the lock protrusion 19 and the lock hole 27. At the same time, the electrical connection board 2 is inserted into the plug-in space to realize the electrical connection between the terminal group 3 and the electrical connection group 21.

[0112] In this embodiment, a positioning plate is provided at both ends of the lower side of the first insulating body 1 of the line end connector. When the line segment connector is connected to the board end connector, the two positioning plates are located on the outer sides of the shell 26 respectively, which plays a role in further improving the plug-in stability.

[0113] In one embodiment, the plurality of signal connection portions 23 and the plurality of ground connection portions 22 in each electrical connection group 21 are neatly arranged in a row.

[0114] In another embodiment, Fig.11 As shown, a pair of adjacent signal connection parts 23 form a signal connection group, and the adjacent signal connection groups in the same electrical connection group 21 include a first signal connection group 28 and a second signal connection group 29. The first signal connection group 28 and the second signal connection group 29 are alternately arranged, and at least part of the first signal connection group and at least part of the second signal connection group are staggered so that at least part of the first signal connection group 28 and at least part of the second signal connection group 29 are close to the plug-in space, and the other is far away from the plug-in space. The ground connection part 22 is arranged on both sides of the first signal connection group 28 or on both sides of the second signal connection group 29.

[0115] Specifically, Fig.11 Taking the shown situation as an example, the first signal connection group 28 and the second signal connection group 29 are alternately arranged, the ground connection portion 22 is arranged on both sides of the first signal connection group 28 and is on the same arrangement plane as the first signal connection group 28, and the second signal connection group 29 is staggered with the first signal connection group 28 and is not on the same arrangement plane. In this way, by utilizing the principle that the hypotenuse is longer than the right-angled side, the distance between adjacent signal connection groups originally arranged on the same arrangement plane can be increased, thereby improving the anti-crosstalk performance.

[0116] Furthermore, the first signal connection group 28 in one electrical connection group 21 is close to the plug-in space, and the first signal connection group 29 in another electrical connection group is far from the plug-in space.

[0117] Specifically, the oppositely arranged first signal connection groups 28 and the oppositely arranged second signal connection groups 29 in the two electrical connection groups also form an interlaced arrangement, that is, the first signal connection group 28 in one electrical connection group is close to the plug-in space, and the corresponding first signal connection group 28 in the other electrical connection group is far away from the plug-in space.

[0118] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A line end connector, characterized in that: include: A first insulating body, wherein a receiving cavity is provided inside the first insulating body, an electrical connection plug board is provided in the receiving cavity, terminal groups are provided on both sides of the electrical connection plug board, and each of the terminal groups is electrically connected to a cable group; The first grounding component and the second grounding component are respectively arranged on one side of the two terminal groups close to each other and are respectively electrically connected to the grounding terminals in the two terminal groups.

2. The wire end connector according to claim 1, characterized in that: The first grounding component and the second grounding component are electrically connected at sides close to each other.

3. The wire end connector according to claim 2, characterized in that: An isolation plate is provided between the first grounding component and the second grounding component.

4. The wire end connector according to claim 3, characterized in that: The isolation plate is a conductor, and the isolation plate is electrically connected to the first grounding component and the second grounding component.

5. The wire end connector according to claim 1, characterized in that: The electrical connection plug board includes a first injection molded body, in which at least a portion of the terminal group is embedded, and at least a portion of the surfaces of the two terminal groups that are away from each other are exposed on both side surfaces of the first injection molded body.

6. The wire end connector according to claim 5, characterized in that: One end of the terminal group is connected to the cable group, a contact portion is provided in the middle of the terminal group, the first injection molded body is provided with a first hollow portion, and at least part of the contact portions of at least part of the terminals in the terminal group are provided within the hollow range of the first hollow portion.

7. The wire end connector according to claim 1, characterized in that: The first grounding component includes a front-end grounding plate and a rear-end grounding plate, which are respectively connected to a position of the grounding terminal away from the cable group and a position close to the cable group, and a gap is formed between the front-end grounding plate and the rear-end grounding plate.

8. The wire end connector according to claim 7, characterized in that: The front end grounding plate and the rear end grounding plate are both wall-shaped bent plates, the trough position of the rear end grounding plate is connected to the grounding terminal, and the peak position of the rear end grounding plate and the transition position between the peak position and the trough position are provided with a second hollow portion.

9. The wire end connector according to claim 8, characterized in that: The width of the front grounding plate and the rear grounding plate at the trough position is smaller than the width at the peak position.

10. The wire end connector according to claim 3, characterized in that: The isolation plate is in the shape of a flat plate and is provided with through holes and / or an uneven surface.

11. The wire end connector according to claim 5, characterized in that: Each of the terminal groups includes a plurality of ground terminals and a plurality of signal terminals arranged in a row, each of the cable groups includes a plurality of cables, each of the cables includes at least one signal core and at least one ground core, the signal core of each cable and the signal terminal electrically connected thereto form a signal transmission unit, and at least one ground terminal is arranged between two adjacent signal units.

12. The wire end connector according to claim 11, characterized in that: The terminal group is welded to the plurality of cables to form a welding portion, and at least a portion of the welding portion is exposed from the first injection molded body.

13. The wire end connector according to claim 11, characterized in that: Each of the cables includes a pair of signal cores and a pair of ground cores, the pair of signal cores are connected to a pair of adjacent signal terminals, the pair of ground cores are respectively located on both sides of the pair of signal cores, and the pair of ground cores are respectively connected to the ground terminals located on both sides of the pair of adjacent signal terminals.

14. The wire end connector according to claim 5, characterized in that: It also includes a guide bar, which is a second injection molded body or an assembly body, and is arranged at one end of the first injection molded body away from the cable group, and the end of the guide bar away from the first injection molded body is provided with a chamfer.

15. The wire end connector according to claim 1, characterized in that: A plug-in portion is provided at the bottom of one side of the first insulating body, and a lock buckle is provided on the outer side of the plug-in portion. The lock buckle includes a lock plate bent into a U shape, one side of the lock plate is snapped into a lock groove on the surface of the plug-in portion, and the other side of the lock plate is a free end and exposed, and two lock protrusions are provided on the outer side of the other side of the lock plate.

16. A connector assembly, characterized in that: include: Board connector; A line end connector according to any one of claims 1 to 15.

17. The connector assembly according to claim 16, characterized in that The board-side connector comprises: A second insulating body, wherein two electrical connection groups are arranged opposite to each other inside the second insulating body, a plug-in space is formed between the two electrical connection groups, and the electrical connection plug board is used to be inserted into the plug-in space and electrically connect the terminal group with the electrical connection group.

18. The connector assembly according to claim 17, wherein: Each of the electrical connection groups includes a plurality of ground connection parts, a plurality of signal connection parts and a third grounding plate, the third grounding plate is electrically connected to the ground connection parts, and two third grounding plates are arranged on one side of the two electrical connection groups close to each other.

19. The connector assembly according to claim 18, wherein: The mutually adjacent sides of the two third grounding plates are electrically connected.

20. The connector assembly according to claim 19, wherein: A fourth grounding plate is disposed between the two third grounding plates, and the fourth grounding plate is electrically connected to the two third grounding plates.

21. The connector assembly according to claim 20, characterized in that The third grounding plate is a wall-shaped bent plate, the fourth grounding plate is a U-shaped plate, and the outer sides of both ends of the fourth grounding plate are electrically connected to the wave crest positions of the two third grounding plates respectively.

22. The connector assembly according to claim 17, wherein: The board-end connector also includes: A shell, the shell is sleeved on the outside of the second insulating body, a plug-in slot is formed between at least one of the front side surface and the rear side surface of the second insulating body and the shell, and a lock hole is opened on the shell as a slot wall of the plug-in slot; A plug-in portion is provided at the bottom of one side of the first insulating body, a lock buckle is provided on the outer side of the plug-in portion, and the lock buckle includes a lock plate bent into a U shape, one side of the lock plate is clamped in a lock groove on the surface of the plug-in portion, and the other side of the lock plate is a free end and exposed, and two lock protrusions are provided on the outer side of the other side of the lock plate; The inserting groove is plug-fitted with the inserting portion, and the locking protrusion is snap-fitted with the locking hole.

23. The connector assembly according to claim 18, wherein: A pair of adjacent signal connection parts forms a signal connection group, and adjacent signal connection groups in the same electrical connection group include a first signal connection group and a second signal connection group, the first signal connection group and the second signal connection group are alternately arranged, and at least part of the first signal connection group and at least part of the second signal connection group are staggered so that at least part of the first signal connection group and at least part of the second signal connection group are close to the plug-in space, and the other is far away from the plug-in space, and the ground connection part is arranged on both sides of the first signal connection group or on both sides of the second signal connection group.

24. The connector assembly according to claim 23, characterized in that At least part of the first signal connection groups in one of the electrical connection groups is close to the plug-in space, and at least part of the first signal connection groups in another of the electrical connection groups is far from the plug-in space.

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