Grounding structure, electric connection assembly and connector

Abstract

The utility model provides a grounding structure, an electric connection assembly and a connector, relates to the technical field of connectors, and is used for grounding a terminal group, the terminal group comprises a plurality of terminals arranged side by side, and comprises a first grounding sheet and a second grounding sheet, the first grounding sheet and the second grounding sheet are respectively arranged at two sides of each row of terminal group, the first grounding piece and the second grounding piece are electrically connected with the grounding terminals in the terminal group; 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 a terminal group, wherein the terminal group includes a plurality of terminals arranged side by side, including:

[0005] A first grounding plate and a second grounding plate, wherein the first grounding plate and the second grounding plate are respectively arranged at two sides of each row of the terminal groups, and the first grounding plate and the second grounding plate are electrically connected to the grounding terminals in the terminal groups.

[0006] Optionally, a first reinforcing plate is connected to a side of the first grounding plate away from the second grounding plate, and / or a second reinforcing plate is connected to a side of the second grounding plate away from the first grounding plate.

[0007] Optionally, one end of the terminal group is connected to a cable group, and an end of the terminal group away from the cable group is provided with a bending portion, the bending portion bends toward a side close to the first grounding plate, and a contact surface is formed on a side of the bending portion close to the second grounding plate.

[0008] Optionally, an extension portion is provided at one end of the first grounding sheet away from the cable group, and the extension portion is provided on a side of the terminal group away from the contact surface and forms a first gap between the extension portion and the grounding terminal of the terminal group.

[0009] Optionally, a connecting portion is provided between adjacent extending portions, the connecting portion is electrically connected to the adjacent extending portions, a second gap is formed between the connecting portion and the terminal group, and the second gap is larger than the first gap.

[0010] Optionally, the first grounding plate and the second grounding plate are both wall-shaped bent plates, the trough section of the bent plates is electrically connected to the grounding terminal, and the first reinforcing plate and the second reinforcing plate both include a flat plate portion, and the flat plate portion is electrically connected to the peak section of the bent plate.

[0011] Optionally, a protruding portion extending outward is provided at a crest position of the second grounding sheet, and the protruding portion protrudes in a direction away from the cable group.

[0012] The utility model also provides an electrical connection assembly, comprising:

[0013] A terminal group, the terminal group comprising a plurality of terminals arranged side by side;

[0014] a cable group, the cable group being connected to one end of the terminal group, the cable group comprising a plurality of cables;

[0015] The grounding structure described above.

[0016] Optionally, it also includes a first injection-molded body and a second injection-molded body, one end of the first injection-molded body is wrapped around the outside of the terminal group, a plurality of protrusions are provided in the middle of the first injection-molded body, the protrusions are used to separate the wire cores of the cable group, a plurality of limiting grooves are provided at the other end of the first injection-molded body, the limiting grooves are used to limit the cables of the cable group, the second injection-molded body is connected to the first injection-molded body, and the second injection-molded body wraps the cable group.

[0017] Optionally, the terminal group includes a plurality of ground terminals and a plurality of signal terminals, the cable includes a ground core and at least one signal core, the ground core and the signal core are electrically connected to the ground terminal and the signal terminal respectively, 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.

[0018] Optionally, each cable 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, the pair of ground cores are respectively connected to ground terminals located on both sides of a pair of adjacent signal terminals, and the two adjacent ground terminals are integrally connected near one end of the cable.

[0019] Optionally, a plurality of the grounding terminals are connected by a long strip of connecting tape at one end close to the cable.

[0020] The utility model also provides a connector, comprising:

[0021] Insulation body;

[0022] At least one of the above-mentioned electrical connection components is at least partially arranged in the insulating body.

[0023] The utility model provides a grounding structure, an electrical connection component and a connector, the beneficial effects of which are: the grounding structure is used for grounding a terminal group, the terminal group can transmit signals, the first grounding plate and the second grounding plate are arranged to be electrically connected to the grounding terminals in the terminal group from both sides of each row of terminal groups, and the anti-crosstalk performance between the terminal groups in the front and rear rows can be improved.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A schematic diagram of a grounding structure according to the first embodiment of the present utility model is shown.

[0027] Figure 2 A schematic diagram of an electrical connection assembly according to the first embodiment of the present utility model is shown.

[0028] Figure 3 A schematic diagram of the internal structure of a signal transmission unit of an electrical connection assembly according to the first embodiment of the utility model is shown.

[0029] Figure 4 A schematic diagram of a grounding structure according to the second embodiment of the present utility model is shown.

[0030] Figure 5 A schematic diagram of the exploded structure of a grounding structure according to the second embodiment of the present utility model is shown.

[0031] Figure 6 A schematic diagram showing a viewing angle of an electrical connection assembly according to the second embodiment of the present utility model.

[0032] Figure 7 A schematic diagram of the exploded structure of an electrical connection assembly according to the second embodiment of the present utility model is shown.

[0033] Figure 8 A schematic diagram showing another viewing angle of an electrical connection assembly according to the second embodiment of the utility model is shown.

[0034] Fig. 9A schematic diagram of the exploded structure of a grounding structure according to the third embodiment of the present utility model is shown.

[0035] Fig.10 A schematic diagram of a connector according to a fourth embodiment of the present utility model is shown.

[0036] Description of reference numerals:

[0037] 1. Insulating body; 2. Terminal group; 3. Cable group; 4. First grounding plate; 5. Second grounding plate; 6. First reinforcing plate; 7. Extension portion; 8. Connecting portion; 9. Grounding terminal; 10. Signal terminal; 11. Grounding core; 12. Signal core; 13. Second injection molding body; 14. Connecting belt; 15. Second reinforcing plate; 16. First injection molding body; 17. Protrusion; 18. Limiting groove; 19. Protruding portion. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1

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

[0041] The first grounding plate 4 and the second grounding plate 5 are respectively arranged on both sides of each row of terminal groups 2 , and the first grounding plate 4 and the second grounding plate 5 are electrically connected to the grounding terminals 9 in the terminal groups 2 .

[0042] Specifically, in order to solve the problem of insufficient anti-crosstalk capability of the terminal group 2 position in the connector in the prior art, the grounding structure provided by the utility model is used for grounding the terminal group 2, and the terminal group 2 can transmit signals. The first grounding plate 4 and the second grounding plate 5 are electrically connected to the grounding terminal 9 in the terminal group 2 from both sides of each row of terminal groups 2, which can improve the anti-crosstalk performance between the terminal groups 2 between the front and rear rows.

[0043] Optionally, a side of the first grounding plate 4 away from the second grounding plate 5 is connected to the first reinforcing plate 6 , and / or a side of the second grounding plate 5 away from the first grounding plate 4 is connected to the second reinforcing plate 15 .

[0044] Specifically, the provision of the first reinforcing plate 6 can reinforce the terminal group 2 as a whole, thereby avoiding deformation caused by insufficient structural strength of the entire row of terminal groups 2, and further avoiding poor contact between the electrical connection portion 8 of the terminal group 2 and the board-end connector when the line-end connector having the terminal group 2 and the grounding structure is plugged into the board-end connector. The first reinforcing plate 6 can be welded to the first grounding plate 4; the second reinforcing plate 15 is the same as the first reinforcing plate 6, and it can be welded to the second grounding plate 5.

[0045] In this embodiment, only the side of the first grounding plate 4 away from the second grounding plate 5 is connected with the first reinforcing plate 6 , and the second reinforcing plate 15 is not provided.

[0046] In this embodiment, the material of the first reinforcing plate 6 is the same as that of the first grounding plate 4 .

[0047] Optionally, one end of the terminal group 2 is connected to the cable group 3, and a bending portion is provided at the end of the terminal group 2 away from the cable group 3, the bending portion bends toward the side close to the first grounding plate 4, and a contact surface is formed on the side of the bending portion close to the second grounding plate 5.

[0048] Specifically, the contact surface is the position where the terminal group 2 contacts the electrical connection portion 8 of the board-end connector when the line-end connector is plugged into the board-end connector. After contact, the terminal group 2 undergoes elastic deformation to ensure contact quality and signal transmission quality.

[0049] Optionally, the first grounding plate 4 and the second grounding plate 5 are both wall-shaped bent plates, the trough section of the bent plate is electrically connected to the grounding terminal 9, and the first reinforcing plate 6 and the second reinforcing plate 15 both include a flat plate portion, which is electrically connected to the peak section of the bent plate.

[0050] Optionally, a protruding portion 19 extending outward is provided at a crest position of the second grounding sheet 5 , and the protruding portion 19 protrudes in a direction away from the cable group 3 .

[0051] Specifically, the extension portion 19 on the second grounding sheet 5 can play a role in signal crosstalk shielding and can cooperate with the avoidance groove on the first injection molded body 16 .

[0052] like Figure 2 As shown, the utility model also provides an electrical connection assembly, including:

[0053] Terminal group 2, terminal group 2 includes a plurality of terminals arranged side by side;

[0054] A cable group 3, the cable group 3 is connected to one end of the terminal group 2, and the cable group 3 includes a plurality of cables;

[0055] The grounding structure described above.

[0056] Specifically, the terminal group 2 is connected to the cable group 3 to realize signal transmission. The above-mentioned grounding structure connects all the grounding terminals 9 in the terminal group 2, and a first grounding plate 4 and a second grounding plate 5 are respectively arranged on the front and back sides of the terminal group 2 to improve the anti-crosstalk performance of the terminal group 2 between the front and rear rows.

[0057] Optionally, it also includes a first injection molded body 16 and a second injection molded body 13, one end of the first injection molded body 16 is wrapped around the outside of the terminal group 2, a plurality of protrusions 17 are provided in the middle of the first injection molded body 16, the protrusions 17 are used to separate the wire cores of the cable group 3, a plurality of limiting grooves 18 are provided at the other end of the first injection molded body 16, the limiting grooves 18 are used to limit the cables of the cable group 3, the second injection molded body 13 is connected to the first injection molded body 16, and the second injection molded body 13 wraps the cable group 3.

[0058] Specifically, Figure 3 As shown, the first injection molding body 16 limits the respective terminals of a row of terminal groups 2, and separates the respective terminals and the wire cores of the cable group 3 connected to the respective terminals through a plurality of protrusions 17, thereby forming a further isolation and positioning effect, and the limiting grooves 18 on the first injection molding body 16 can limit the respective cables of the cable group 3, thereby improving the stability of the cables during installation before the second injection molding body 13 is formed, and the second injection molding body 13 at least wraps one end of the cables of the cable group 3, thereby improving the overall connection strength and structural strength.

[0059] Optionally, the terminal group 2 includes multiple ground terminals 9 and multiple signal terminals 10, and the cable includes at least one ground core 11 and at least one signal core 12. The ground core 11 and the signal core 12 are electrically connected to the ground terminal 9 and the signal terminal 10, respectively. The signal core 12 of each cable and the signal terminal 10 electrically connected thereto form a signal transmission unit, and at least one ground terminal 9 is arranged between two adjacent signal transmission units.

[0060] Specifically, each row of terminal groups 2 includes a plurality of ground terminals 9 and a plurality of signal terminals 10 arranged in a row. In each row of terminal groups 2, the ground terminals 9 are located on both sides of the signal terminals 10 of each signal transmission unit.

[0061] In this embodiment, one end of the ground terminal 9 of the terminal group 2 close to the cable group 3 is connected by a connecting strip 14 .

[0062] Optionally, each cable includes a pair of signal cores 12 and a pair of ground cores 11, the pair of signal cores 12 are connected to a pair of adjacent signal terminals 10, the pair of ground cores 11 are respectively located on both sides of the pair of signal cores 12, the pair of ground cores 11 are respectively connected to the ground terminals 9 located on both sides of the pair of adjacent signal terminals 10, and the two adjacent ground terminals 9 are integrally connected near one end of the cable.

[0063] Specifically, the cable group 3 includes a plurality of cables arranged in a row, each cable including a pair of signal cores 12 and a pair of ground cores 11, the pair of ground cores 11 are arranged on both sides of the pair of signal cores 12 away from each other, the pair of signal cores 12 can form a differential signal pair, and the pair of ground cores 11 are connected to two ground terminals 9; in this way, two ground terminals 9 are respectively arranged on both sides of a pair of signal terminals 10 in the first terminal group 2, and the two ground terminals 9 are connected near one end of the cable.

[0064] Embodiment 2

[0065] like Figures 4 to 8 As shown, the difference between this embodiment and the first embodiment is that:

[0066] In this embodiment, an extension portion 7 is provided at one end of the first grounding sheet 4 away from the cable group 3 . The extension portion 7 is provided at a side of the terminal group 2 away from the contact surface and forms a first gap with the grounding terminal 9 of the terminal group 2 .

[0067] Specifically, the extension portion 7 is formed by extending outward from one end of the first grounding plate 4 away from the cable group 3, and the outer end of the extension portion 7 is located on the side of the terminal group 2 away from the contact surface, and is at a first gap distance from the first terminal group 2. When the line-end connector having the grounding structure is plugged into the board-end connector, the terminal group 2 contacts the electrical connection portion 8 of the board-end connector through the contact surface and undergoes elastic deformation, and the outer end of the terminal group 2 moves upward and is able to contact the extension portion 7 to achieve electrical connection; such a setting, after the extension portion 7 contacts the grounding terminal 9 in the deformed terminal group 2 and forms an electrical connection, can greatly improve the crosstalk in the SI performance of the terminal group 2, namely the far-end crosstalk and the near-end crosstalk, and further improve its anti-crosstalk performance.

[0068] In this embodiment, a connecting portion 8 is provided between adjacent extending portions 7 , the connecting portion 8 is electrically connected to the adjacent extending portions 7 , and a second gap is formed between the connecting portion 8 and the terminal set 2 , and the second gap is larger than the first gap.

[0069] Specifically, the second gap is larger than the first gap, so that when the extending portion 7 contacts the ground terminal 9 in the terminal group 2 , the connecting portion 8 does not contact the signal terminal 10 in the terminal group 2 .

[0070] In this embodiment, the extension portion 7 is connected to the trough section in an integral manner, and both ends of the connection portion 8 are respectively connected to the ends of two adjacent extension portions 7 away from the bending plate.

[0071] Specifically, two ends of the connecting portion 8 are respectively connected to the outer ends of two adjacent extending portions 7 , and the connecting portion 8 forms a convex arch shape.

[0072] Embodiment 3

[0073] like Fig. 9 As shown, the difference between this embodiment and the first embodiment is that:

[0074] In this embodiment, a first reinforcing plate is connected to a side of the first grounding plate away from the second grounding plate, and a second reinforcing plate is connected to a side of the second grounding plate away from the first grounding plate.

[0075] Specifically, the two reinforcing plates are respectively arranged on the sides of the first grounding plate and the second grounding plate that are away from each other, so as to improve the reinforcing effect.

[0076] In this embodiment, the first reinforcing plate 6 is in the shape of a flat plate, and the second reinforcing plate 15 is provided with a folded edge portion at one end of the flat plate portion.

[0077] Embodiment 4

[0078] like Fig.10 As shown, the utility model also provides a connector, comprising:

[0079] Insulation body 1;

[0080] At least one of the above-mentioned electrical connection components is at least partially arranged in the insulating body 1.

[0081] 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.

[0082] In this embodiment, the connector is a line-end connector that can be plugged in and matched with a board-end connector. Five of the above-mentioned electrical connection components are arranged in the insulating body 1. When the line-end connector is connected to the corresponding board-end connector, the terminal group 2 contacts the electrical connection portion 8 of the board-end connector through its contact surface, and the terminal group 2 undergoes elastic deformation, and the grounding terminal 9 contacts the extension portion 7 to form an electrical connection.

[0083] 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 a terminal group, wherein the terminal group comprises a plurality of terminals arranged side by side, characterized in that: include: A first grounding plate and a second grounding plate, wherein the first grounding plate and the second grounding plate are respectively arranged at two sides of each row of the terminal groups, and the first grounding plate and the second grounding plate are electrically connected to the grounding terminals in the terminal groups.

2. The grounding structure according to claim 1, characterized in that: A first reinforcing plate is connected to a side of the first grounding plate away from the second grounding plate, and / or a second reinforcing plate is connected to a side of the second grounding plate away from the first grounding plate.

3. The grounding structure according to claim 1, characterized in that: One end of the terminal group is connected to a cable group, and one end of the terminal group away from the cable group is provided with a bending portion, the bending portion is bent toward a side close to the first grounding plate, and a contact surface is formed on a side of the bending portion close to the second grounding plate.

4. The grounding structure according to claim 3, characterized in that: An extension portion is provided at one end of the first grounding sheet away from the cable group. The extension portion is provided at a side of the terminal group away from the contact surface and forms a first gap with the grounding terminal of the terminal group.

5. The grounding structure according to claim 4, characterized in that: A connecting portion is provided between adjacent extending portions, the connecting portion is electrically connected to the adjacent extending portions, a second gap is formed between the connecting portion and the terminal group, and the second gap is larger than the first gap.

6. The grounding structure according to claim 2, characterized in that: The first grounding plate and the second grounding plate are both wall-shaped bent plates, the trough section of the bent plate is electrically connected to the grounding terminal, and the first reinforcing plate includes a flat plate portion, and the flat plate portion is electrically connected to the peak section of the bent plate.

7. The grounding structure according to claim 3, characterized in that: An outwardly extending protruding portion is disposed at a crest position of the second grounding sheet, and the protruding portion protrudes in a direction away from the cable group.

8. An electrical connection assembly, characterized in that: include: A terminal group, the terminal group comprising a plurality of terminals arranged side by side; a cable group, the cable group being connected to one end of the terminal group, the cable group comprising a plurality of cables; A grounding structure according to any one of claims 1 to 7.

9. The electrical connection assembly according to claim 8, characterized in that: It also includes a first injection-molded body and a second injection-molded body, one end of the first injection-molded body is wrapped around the outside of the terminal group, a plurality of protrusions are provided in the middle of the first injection-molded body, the protrusions are used to separate the wire cores of the cable group, a plurality of limiting grooves are provided at the other end of the first injection-molded body, the limiting grooves are used to limit the cables of the cable group, the second injection-molded body is connected to the first injection-molded body, and the second injection-molded body wraps the cable group.

10. The electrical connection assembly according to claim 8, characterized in that: The terminal group includes a plurality of ground terminals and a plurality of signal terminals, the cable includes a ground core and at least one signal core, the ground core and the signal core are electrically connected to the ground terminal and the signal terminal respectively, 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.

11. The electrical connection assembly according to claim 10, characterized in that: Each cable 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, the pair of ground cores are respectively connected to the ground terminals located on both sides of the pair of adjacent signal terminals, and the two adjacent ground terminals are integrally connected near one end of the cable.

12. The electrical connection assembly according to claim 10, characterized in that: The plurality of ground terminals are connected at one end close to the cable by a long strip-shaped connecting belt.

13. A connector, characterized in that: include: Insulation body; At least one electrical connection assembly according to any one of claims 8 to 12, the electrical connection assembly being at least partially disposed within the insulating body.

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