Grounding structure, electric connection assembly and connector

Abstract

The utility model provides a grounding structure, an electric connection assembly and a connector, and relates to the technical field of connectors, the grounding structure is used for grounding two terminal groups which are arranged at intervals, each terminal group comprises a plurality of terminals which are arranged side by side, and each terminal group comprises a first grounding part and a second grounding part, the first grounding part and the second grounding part are arranged between the two terminal groups, and the first grounding part and the second grounding part are electrically connected with the grounding terminals in the two terminal groups respectively; the problem that in the prior art, the anti-crosstalk capability of the positions of a connector and a terminal set is insufficient is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and more specifically, relates to a grounding structure, an electrical connection component and a connector. 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 at the terminal group position is an urgent problem to be solved. Utility Model Content

[0003] The purpose of the utility model is to provide a grounding structure, an electrical connection component and a connector to solve the problem of insufficient anti-crosstalk ability of the terminal group position of the connector in the prior art.

[0004] In order to achieve the above object, the utility model provides a grounding structure for grounding two terminal groups arranged at intervals, each of the terminal groups comprising a plurality of terminals arranged side by side, including:

[0005] A first grounding component and a second grounding component, wherein the first grounding component and the second grounding component are disposed between the two terminal groups, and the first grounding component and the second grounding component are electrically connected to the grounding terminals in the two terminal groups, respectively.

[0006] Optionally, the first grounding component and the second grounding component are electrically connected at sides close to each other.

[0007] Optionally, an isolation plate is provided between the first grounding component and the second grounding component.

[0008] Optionally, the isolation plate is a conductor, and the isolation plate is electrically connected to the first grounding component and the second grounding component.

[0009] Optionally, one end of the terminal group is connected to a cable group, and a contact portion is provided in the middle of the terminal group.

[0010] Optionally, the first grounding component includes a front-end grounding plate and a rear-end grounding plate, the front-end grounding plate is connected to one end of the grounding terminal away from the cable group and is located on the side of the contact portion away from the cable group, and the rear-end grounding plate is connected to the other end of the grounding terminal, and a gap is formed between the front-end grounding plate and the rear-end grounding plate.

[0011] 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 first hollow portion.

[0012] 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.

[0013] Optionally, the isolation plate is in the shape of a flat plate, and is provided with through holes and / or an uneven surface.

[0014] The utility model also provides an electrical connection assembly, comprising:

[0015] Two terminal groups, the two terminal groups are arranged at intervals, and the terminal groups include a plurality of terminals arranged side by side;

[0016] Two cable groups, the two cable groups are respectively connected to one end of the two terminal groups, and the cable groups include a plurality of cables;

[0017] The grounding structure described above.

[0018] Optionally, a first injection molded body is further included, 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.

[0019] 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 second 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 second hollow portion.

[0020] 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 transmission units.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The utility model also provides a connector, comprising:

[0025] Insulation body;

[0026] The electrical connection assembly mentioned above is at least partially disposed in the insulating body.

[0027] The utility model provides a grounding structure, an electrical connection component and a connector, which have the following beneficial effects: the grounding structure is used for grounding a terminal group, the terminal group can transmit signals, a first grounding plate and a second grounding plate are arranged to be electrically connected to grounding terminals in the two terminal groups from mutually close sides of two rows of terminal groups, respectively, 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.

[0028] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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.

[0030] Figure 1 A schematic diagram of a grounding structure according to an embodiment of the utility model is shown.

[0031] Figure 2 A schematic diagram of the exploded structure of a grounding structure according to an embodiment of the utility model is shown.

[0032] Figure 3 A schematic diagram of a grounding structure according to another embodiment of the utility model is shown.

[0033] Figure 4 A schematic diagram of the exploded structure of a grounding structure according to another embodiment of the utility model is shown.

[0034] Figure 5 A schematic diagram of an electrical connection assembly according to an embodiment of the utility model is shown.

[0035] Figure 6A schematic diagram of the connection between a terminal group and a cable group of an electrical connection assembly according to an embodiment of the utility model is shown.

[0036] Figure 7 A schematic structural diagram of a connector according to an embodiment of the utility model is shown.

[0037] Description of reference numerals:

[0038] 1. 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. Second hollow portion; 10. Front grounding plate; 11. Rear grounding plate; 12. First hollow portion; 13. Grounding terminal; 14. Signal terminal; 15. Signal wire core; 16. Grounding wire core; 17. Welding portion; 18. Guide strip. DETAILED DESCRIPTION

[0039] 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.

[0040] like Figure 1 As shown, the utility model provides a grounding structure for grounding two terminal groups 3 arranged at intervals, each terminal group 3 includes a plurality of terminals arranged side by side, including:

[0041] The first grounding component 5 and the second grounding component 6 are disposed between the two terminal groups 3 , and the first grounding component 5 and the second grounding component 6 are electrically connected to the grounding terminals 13 in the two terminal groups 3 , respectively.

[0042] Specifically, in order to solve the problem of insufficient anti-crosstalk ability of the terminal group 3 position in the connector in the prior art, the grounding structure provided by the utility model is used for grounding the terminal group 3, and the terminal group 3 can transmit signals. The first grounding plate and the second grounding plate are arranged to be electrically connected to the grounding terminals 13 in the two terminal groups 3 from the mutually close sides of the two rows of terminal groups 3, respectively, 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.

[0043] Optionally, the first grounding component 5 and the second grounding component 6 are electrically connected at their sides close to each other.

[0044] 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.

[0045] Optionally, an isolation plate 7 is provided between the first grounding component 5 and the second grounding component 6 .

[0046] 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.

[0047] 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.

[0048] 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 .

[0049] Specifically, the isolation plate 7 can not only play an isolation role, but also strengthen the terminal group 3 as a whole, thereby enhancing the structural strength; the isolation plate 7 can be welded to the first grounding component 5 .

[0050] In this embodiment, the material of the isolation plate 7 is the same as that of the first grounding member 5 .

[0051] Optionally, one end of the terminal group 3 is connected to the cable group 4 , and a contact portion is provided in the middle of the terminal group 3 .

[0052] Specifically, the contact portion is used to make contact with the electrical connection group to achieve electrical connection when the terminal group 3 is mated with the electrical connection group.

[0053] In one embodiment, the first grounding component 5 is an integrated grounding sheet, and the integrated grounding sheet is a sheet structure bent into a wall shape.

[0054] In another embodiment, the first grounding component 5 includes a front-end grounding plate 10 and a rear-end grounding plate 11, the front-end grounding plate 10 is connected to one end of the grounding terminal 13 away from the cable group 4, and is located on the side of the contact portion away from the cable group 4, and the rear-end grounding plate 11 is connected to the other end of the grounding terminal 13, and a gap is formed between the front-end grounding plate 10 and the rear-end grounding plate 11.

[0055] Furthermore, the second grounding component 6 may have the same structure as the first grounding component 5 .

[0056] 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.

[0057] 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 first hollow portion 12.

[0058] Specifically, the front grounding sheet 10 is injection molded in the first injection molded body 8 , and the rear grounding sheet 11 has a first hollow portion 12 , which can accommodate the first injection molded body 8 to improve the stability of fixing the rear grounding sheet 11 .

[0059] 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.

[0060] 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 .

[0061] 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.

[0062] 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.

[0063] The utility model also provides an electrical connection assembly, comprising:

[0064] Two terminal groups 3, the two terminal groups 3 are arranged at intervals, and the terminal groups 3 include a plurality of terminals arranged side by side;

[0065] Two cable groups 4, the two cable groups 4 are respectively connected to one end of the two terminal groups 3, and the cable groups 4 include a plurality of cables;

[0066] The grounding structure described above.

[0067] Specifically, the terminal group 3 is connected to the cable group 4 to realize signal transmission. The above-mentioned grounding structure connects all the grounding terminals 13 in the terminal group 3, and a first grounding plate and a second grounding plate are arranged on the sides close to each other of the two terminal groups 3, so as to improve the formation of anti-crosstalk between the terminal groups 3 and do not affect the electrical connection of the terminal groups 3 on the two side surfaces of the electrical connection board 2.

[0068] Optionally, a first injection molded body 8 is further included, at least part of the terminal group 3 is embedded in the first injection molded body 8, and at least part 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 respectively.

[0069] Specifically, a partial surface of the terminal group 3 is exposed, and is used for electrically connecting the terminal group 3 with the electrical connection group.

[0070] In this embodiment, the first injection molding body 8 injection-moldes the terminal group 3 , the first grounding component 5 , the second grounding component 6 , the isolation plate 7 , and the cable group 4 into an integral structure to form the electrical connection board 2 .

[0071] In this embodiment, two electrical connection groups are provided, and a plug-in space is formed between the two electrical connection groups, into which the power supply connection board 2 is inserted; the above-mentioned electrical connection components can be inserted into the plug-in space, and the electrical connection group includes multiple ground connection parts and multiple signal connection parts.

[0072] 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 second hollow portion 9, 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 second hollow portion 9.

[0073] Specifically, the second hollow portion 9 corresponds to the exposed portion of the terminal group 3 , which is beneficial to the electrical connection quality between the terminal group 3 and the electrical connection group.

[0074] 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.

[0075] 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 transmission units.

[0076] 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.

[0077] Optionally, the terminal group 3 is welded to a plurality of cables to form a welding portion 17 , and at least a portion of the welding portion 17 is exposed from the first injection molded body 8 .

[0078] Specifically, the exposed welding portion 17 can make the impedance at the welding point better.

[0079] 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.

[0080] Specifically, the cable group 4 includes a plurality of cables arranged in a row, each cable including 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.

[0081] Optionally, a guide bar 18 is further included. The guide bar 18 is a second injection molded body or an assembly. The guide bar 18 is arranged at one end of the first injection molded body 8 away from the cable group 4 . The end of the guide bar 18 away from the first injection molded body 8 is chamfered.

[0082] Specifically, the guide bar 18 can form a guide through the chamfer when the electrical connection component is plugged in, which is beneficial to the plugging and unplugging of the electrical connection component; the guide bar 18 can be a second injection molded body or an assembly body, which is assembled with the first injection molded body 8.

[0083] In this embodiment, no matter the guide bar 18 is the second injection molded body or the assembly body, the structure of one 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 18 .

[0084] The utility model also provides a connector, comprising:

[0085] Insulation body 1;

[0086] The electrical connection assembly mentioned above is at least partially disposed in the insulating body 1 .

[0087] Specifically, the connector may be an electrical connector of various forms, the connector uses an insulating body 1 as a shell, and completes signal transmission through the above-mentioned electrical connection components.

[0088] In this embodiment, the connector is a line-end connector that can be plugged in and out with a board-end connector. An electrical connection component as described above is disposed in the insulating body 1. When the line-end connector is connected to the corresponding board-end connector, the terminal group 3 contacts the electrical connection group of the board-end connector through its contact surface to form an electrical connection.

[0089] 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 grounding structure for grounding two terminal groups arranged at intervals, each of the terminal groups comprising a plurality of terminals arranged side by side, characterized in that: include: A first grounding component and a second grounding component, wherein the first grounding component and the second grounding component are disposed between the two terminal groups, and the first grounding component and the second grounding component are electrically connected to the grounding terminals in the two terminal groups, respectively.

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

4. The grounding structure 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 grounding structure according to claim 1, characterized in that: One end of the terminal group is connected to a cable group, and a contact portion is arranged in the middle of the terminal group.

6. The grounding structure according to claim 5, characterized in that: The first grounding component includes a front-end grounding plate and a rear-end grounding plate, wherein the front-end grounding plate is connected to one end of the grounding terminal away from the cable group and is located on the side of the contact portion away from the cable group, and the rear-end grounding plate is connected to the other end of the grounding terminal, and a gap is formed between the front-end grounding plate and the rear-end grounding plate.

7. The grounding structure according to claim 6, 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 first hollow portion.

8. The grounding structure according to claim 7, 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.

9. The grounding structure 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.

10. An electrical connection assembly, characterized in that: include: Two terminal groups, the two terminal groups are arranged at intervals, and the terminal groups include a plurality of terminals arranged side by side; Two cable groups, the two cable groups are respectively connected to one end of the two terminal groups, and the cable groups include a plurality of cables; A grounding structure according to any one of claims 1 to 9.

11. The electrical connection assembly according to claim 10, characterized in that: It also includes a first injection molded body, in which at least part of the terminal group is embedded, 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.

12. The electrical connection assembly according to claim 11, 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 second 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 second hollow portion.

13. The electrical connection assembly according to claim 11, 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 transmission units.

14. The electrical connection assembly according to claim 13, 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.

15. The electrical connection assembly according to claim 13, 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.

16. The electrical connection assembly according to claim 11, 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.

17. A connector, characterized in that: include: Insulation body; According to any one of claims 10-16, the electrical connection assembly is at least partially disposed within the insulating body.

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