Grounding structure, electric connection assembly, electric connector and connector assembly

Abstract

The utility model discloses a grounding structure, an electric connection assembly, an electric connector and a connector assembly, belonging to the connector field, the grounding structure is used for grounding a terminal group, and comprises a first grounding member and a second grounding member, the first grounding member and the second grounding member are respectively arranged on two opposite sides of the terminal group, the first grounding piece, the second grounding piece and the grounding terminals of the terminal group are electrically connected, and the first grounding piece and / or the second grounding piece are / is provided with inserting parts inserted into the grounding terminals of the terminal group. According to the utility model, the first grounding piece and / or the second grounding piece are / is directly matched with the grounding terminals of the terminal group through the plugging parts, so that stable physical and electrical connection can be established, the direct plugging can effectively reduce contact resistance, stable transmission of current between the first grounding piece and the grounding terminals is ensured, and the service life of the connector is prolonged. The problems of resistance increase, heating and the like caused by poor contact can be effectively avoided, so that the anti-interference capability of the whole terminal group is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of connector, especially relate to a grounding structure, electric connection subassembly, electric connector and connector assembly. BACKGROUND

[0002] In today's era of rapid development of science and technology, the function of electronic equipment is increasingly powerful, and the performance is continuously improved, which puts forward more stringent requirements for the connector inside the electronic equipment. As the key component for realizing electrical connection in electronic equipment, the performance of the connector directly affects the stability and reliability of the whole system.

[0003] At present, with the development of various electronic devices towards high speed, high frequency and high performance, the signal transmission requirements of the connector are also continuously rising. In the signal transmission process, the crosstalk index of the connector becomes one of the important parameters for measuring its performance. Crosstalk refers to the phenomenon that, in the process of signal transmission, due to electromagnetic coupling and other reasons, the signal of one signal channel interferes with the adjacent signal channel. This interference will cause signal distortion, increase of error rate and other problems, which seriously affects the transmission quality of the signal.

[0004] With the improvement of the signal transmission requirements of the connector, the requirement for the crosstalk index of the connector also becomes higher. In the application scenarios of high-speed data transmission and high-definition video transmission, weak crosstalk may cause data transmission error or image quality degradation, therefore, it becomes more and more important to improve the anti-crosstalk performance of the connector.

[0005] In the internal structure of the connector, each row of terminal group includes a plurality of ground terminals and a plurality of signal terminals. The main function of the ground terminal is to provide electrical grounding to reduce electromagnetic interference; the signal terminal is responsible for transmitting various signals. However, due to the close arrangement of the signal terminals in the terminal group, the electromagnetic coupling effect between the signals is more obvious, which makes the signal crosstalk problem more prominent.

[0006] For such a connector, how to reduce the crosstalk of the signal of the terminal group becomes a problem to be solved. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a grounding structure, electric connection subassembly, electric connector and connector assembly to overcome at least one of the above-mentioned defects in the prior art.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] The utility model provides a kind of grounding structure, for the grounding of terminal group, including first ground piece, and second ground piece, first ground piece and second ground piece are respectively set in the opposite sides of terminal group, and the electrical connection between first ground piece, second ground piece and the grounding terminal of terminal group, first ground piece and / or second ground piece have the plug-in part of the grounding terminal of terminal group.

[0010] Preferably, the first ground piece includes a first conductor and a plug-in part bent from the first conductor.

[0011] Preferably, the plug-in part is at least two, and a first accommodation space is formed between the first conductor and the adjacent two plug-in parts.

[0012] Preferably, the second ground piece includes a second conductor and at least two protruding parts, and a second accommodation space is formed between the second conductor and the adjacent two protruding parts.

[0013] Preferably, the second conductor and / or the protruding part has the plug-in part.

[0014] Preferably, the plug-in part includes an extension segment and a plug-in segment connected to each other, the extension segment contacts one side wall of the grounding terminal of the terminal group, and the plug-in segment penetrates through the grounding terminal of the terminal group.

[0015] Preferably, the protruding part is bent from the second conductor.

[0016] Preferably, the protruding part has a third accommodation space for accommodating the plug-in segment of the first ground piece.

[0017] Preferably, the second conductor has a first clamping part.

[0018] Preferably, the side of the first ground piece away from the second ground piece and / or the side of the second ground piece away from the first ground piece is connected with a reinforcing plate.

[0019] The utility model also provides an electrical connection assembly, which includes a terminal group, a cable, and the grounding structure described above, the terminal group is electrically connected with the cable, and the grounding structure is electrically connected with the grounding terminal of the terminal group.

[0020] Preferably, the terminal group includes a plurality of signal terminals, a plurality of grounding terminals, and a first insulator, and the plurality of signal terminals and the plurality of grounding terminals are fixed to the first insulator.

[0021] Preferably, all the grounding terminals are connected as a whole through a connecting arm.

[0022] Preferably, the grounding terminal has a first insertion channel matched with the plug-in part.

[0023] Preferably, the first insulator has a second insertion channel matched with the plug-in part.

[0024] Preferably, the first insulator has a second clamping portion.

[0025] Preferably, a second insulator is further included, the second insulator wraps the cable, and the second insulator is connected with the first insulator.

[0026] Preferably, the cable includes a ground wire core and a signal wire core, the ground wire core is electrically connected with the ground terminal, the signal wire core is electrically connected with the signal terminal, the signal wire core of each cable and the signal terminal electrically connected therewith form a signal transmission unit, and at least one ground terminal is arranged between two adjacent signal units.

[0027] The utility model also provides a kind of electric connector, including insulating shell and at least one above-mentioned electric connection component, and electric connection component is at least partially arranged in insulating shell.

[0028] Preferably, the terminal group is inclinedly arranged relative to the bottom surface of the insulating shell.

[0029] The utility model also provides a kind of connector assembly, including above-mentioned electric connector and the butt joint connector of butt joint with electric connector.

[0030] The utility model has the advantages that:

[0031] 1, the first ground piece and / or the second ground piece are directly matched with the ground terminal of the terminal group by the plug-in part, and stable physical and electrical connections can be established. Compared with other connection methods, this direct plug-in can effectively reduce the contact resistance and ensure stable transmission of current between the first ground piece and / or the second ground piece and the ground terminal. This is crucial for smoothly guiding the interference current in the terminal group into the ground, effectively avoiding problems such as increased resistance and heating caused by poor contact, and ensuring the reliability of the grounding system, thereby improving the anti-interference capability of the entire terminal group.

[0032] 2, by the arrangement of the first ground piece and the second ground piece, the ground terminal of the terminal group is electrically connected from both sides of the terminal group, which can simultaneously play a shielding role on both sides of the terminal group and form a relatively more closed electromagnetic shielding space around the terminal group. This can more effectively block external electromagnetic interference from entering the terminal group and reduce the interference of external electromagnetic fields on the transmitted signals of the signal terminal, thereby reducing the possibility of crosstalk.

[0033] 3, by extending the segment as the main electrical connection segment with the ground terminal, and combining the plug-in segment inserted into the ground terminal, stable electrical connection is ensured, and physical connection stability is enhanced.

[0034] 4, by the first and second accommodation spaces accommodating the cable, the first ground piece and the second ground piece are prevented from contacting the cable.

[0035] 5、In the grounding system, the current transmission process from the grounding terminal of the terminal set to the first conductive body and the second conductive body will not have obvious resistance increase due to the material or connection mode of the plug-in part and the protruding part. Therefore, signal interference is effectively reduced, and the crosstalk resistance of the entire terminal set is improved.

[0036] 6、The protruding part has a third accommodation space for accommodating the plug-in section, so that short circuit caused by electrical connection between the plug-in section and the protruding part is avoided.

[0037] 7、Through the setting of the reinforcing plate, the grounding structure can be integrally reinforced, so that deformation caused by insufficient strength of the grounding structure is avoided.

[0038] 8、Through the cooperation of the first insertion channel and the plug-in part, the first grounding part and the grounding terminal are quickly assembled and stably connected.

[0039] 9、Through the setting of the second insertion channel of the plug-in part matched with the first insertion channel of the first insulator, the connection stability of the first grounding part and the grounding terminal is further improved, and the plug-in part is inserted into the first insertion channel, which plays a guiding installation role.

[0040] 10、Through the clamping of the first clamping part and the second clamping part, the installation stability of the second grounding part is improved, and stable electrical connection between the second grounding part and the grounding terminal is ensured.

[0041] 11、All grounding terminals are connected as a whole through the connecting arms. The unified installation of the grounding terminals is facilitated, and the current can be uniformly distributed among the grounding terminals, thereby significantly reducing the overall grounding resistance. In addition, the connecting arms connect all the grounding terminals as a whole, thereby enhancing the mechanical structural strength of the entire grounding system. When subjected to external forces such as vibration and impact, the integrated structure can better resist external forces and reduce the risk of loosening or falling of the grounding terminals.

[0042] 12、The terminal set is inclined relative to the bottom surface of the insulating shell, so that the electrical connector is lower and space-saving. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a schematic view of the cooperation structure of the grounding structure and the grounding terminal in the embodiment one of the utility model.

[0044] Figure 2 is a schematic view of the first grounding part in the embodiment one of the utility model.

[0045] Figure 3 is a schematic view of the second grounding part in the embodiment one of the utility model.

[0046] Figure 4 is a three-dimensional structure schematic view of the embodiment two of the utility model.

[0047] Figure 5 is a top view structure schematic view of the terminal group of the embodiment two of the utility model.

[0048] Figure 6 is a three-dimensional structure schematic view (first perspective) of the first insulator of the embodiment two of the utility model.

[0049] Figure 7 is a three-dimensional structure schematic view (first perspective) of the first insulator of the embodiment two of the utility model.

[0050] Figure 8 is a matching schematic view of the grounding terminal, signal terminal, grounding wire core and signal wire core of the embodiment two of the utility model.

[0051] Figure 9 is a top view structure schematic view of the grounding terminal of the embodiment two of the utility model.

[0052] Figure 10 is a top view structure schematic view of the grounding terminal and signal terminal of the embodiment three of the utility model.

[0053] Figure 11 is a three-dimensional structure schematic view of the embodiment four of the utility model.

[0054] Figure 12 is a three-dimensional structure schematic view of the embodiment five of the utility model.

[0055] The mark in the drawing is: 1-first grounding piece, 2-second grounding piece, 11-plug-in part, 111-extension section, 112-plug-in section, 12-first conductive body, 13-first accommodation space, 21-second conductive body, 22-protruding part, 23-second accommodation space, 221-third accommodation space, 211-first clamping part, 3-strengthening plate, 4-terminal group, 5-cable, 41-signal terminal, 42-grounding terminal, 43-first insulator, 421-first insertion channel, 422-connecting arm, 431-second insertion channel, 432-second clamping part, 6-second insulator, 51-grounding wire core, 52-signal wire core, 7-insulating shell, 8-mating connector. DETAILED DESCRIPTION

[0056] The utility model is further explained in connection with the drawings and specific embodiment.

[0057] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Example 1:

[0059] like Figures 1 to 3 As shown, this embodiment provides a grounding structure for grounding terminal group 4, including a first grounding member 1 and a second grounding member 2. The first grounding member 1 and the second grounding member 2 are respectively disposed on opposite sides of terminal group 4. In this embodiment, the first grounding member 1 is located on the upper side of terminal group 4, and the second grounding member 2 is located on the lower side of terminal group 4. The first grounding member 1, the second grounding member 2, and the grounding terminal 42 of terminal group 4 are electrically connected. The first grounding member 1 and / or the second grounding member 2 have insertion portions 11 that are inserted into the grounding terminal 42 of terminal group 4. By setting the first grounding member 1 and the second grounding member 2, they are electrically connected to the grounding terminal 42 of terminal group 4 from both sides. Compared to setting the grounding member only on one side of terminal group 4, both sides of terminal group 4 can play a shielding role simultaneously, forming a relatively more enclosed electromagnetic shielding space around terminal group 4. This can more effectively block external electromagnetic interference from entering the interior of terminal group 4, reduce the interference of external electromagnetic fields on the signals transmitted on signal terminals 41, and thus reduce the possibility of crosstalk. The first grounding component 1 and / or the second grounding component 2 directly mate with the grounding terminal 42 of the terminal group 4 via a plug-in part 11, establishing a stable physical and electrical connection. Compared to other connection methods, this direct plug-in connection effectively reduces contact resistance, ensuring stable current transmission between the first grounding component 1 and / or the second grounding component 2 and the grounding terminal 42. This is crucial for smoothly conducting interference current within the terminal group 4 to the ground, effectively avoiding problems such as increased resistance and overheating caused by poor contact, ensuring the reliability of the grounding system, and thus improving the anti-interference capability of the entire terminal group 4.

[0060] The first ground member 1 includes the first conductive body 12 and the plug-in part 11 which is bent from the first conductive body 12. The second ground member 2 includes the second conductive body 21 and at least two protruding parts 22 which are bent from the second conductive body 21. The adjacent two protruding parts 22 and the second conductive body 21 form the second displacement space 23. The cable 5 is displaced through the first displacement space 13 and the second displacement space 23, so as to avoid the contact between the first ground member 1 and the second ground member 2. The protruding part 22 is electrically connected with the grounding terminal 42, so as to make the grounding terminal 42 conductive. The first ground member 1 of the embodiment has the plug-in part 11, and the second ground member 2 does not have the plug-in part 11. In other embodiments, the second ground member 2 can have the plug-in part, the first ground member 1 does not have the plug-in part, or both the first ground member 1 and the second ground member 2 have the plug-in part. When the second ground member 2 is provided with the plug-in part 11, specifically, the second conductive body 21 and / or the protruding part 22 has the plug-in part 11.

[0061] The plug-in part 11 includes the extension segment 111 which is connected with each other and the plug-in segment 112 which penetrates the grounding terminal 42 of the terminal group 4. The extension segment 111 is used as the main electrically connected segment with the grounding terminal 42, and the plug-in segment 112 is plugged into the grounding terminal 42, so as to ensure the stable electrical connection and enhance the stability of the physical connection.

[0062] The protruding part 22 is bent from the second conductive body 21, so as to naturally continue the conductive property of the second conductive body 21. The first ground member 1 includes the first conductive body 12 and the plug-in part 11 which is bent from the first conductive body 12, so as to naturally continue the conductive property of the first conductive body 12. This means that in the process of the current transmission from the grounding terminal 42 of the terminal group 4 to the first conductive body 12 and the second conductive body 21, there is no obvious increase in the resistance caused by the material or the connection mode of the plug-in part 11 and the protruding part 22. Thus, the signal interference is effectively reduced, and the crosstalk resistance of the whole terminal group 4 is improved.

[0063] The protruding part 22 has the third displacement space 221 which is used for displacing the plug-in segment 112 of the first ground member 1, so as to avoid the short circuit caused by the electrical connection between the plug-in segment 112 and the protruding part 22.

[0064] The second conductive body 21 has the first clamping part 211. The first clamping part 211 is matched with the insulating structure of the terminal group 4, so as to facilitate the fixation of the second ground member 2.

[0065] In this embodiment, a reinforcing plate 3 is connected to the side of the first grounding member 1 away from the second grounding member 2. By setting the reinforcing plate 3, the grounding structure can be strengthened as a whole, avoiding deformation caused by insufficient strength of the grounding structure. In this embodiment, the reinforcing plate 3, the first grounding member 1, and the second grounding member 2 are all made of the same material, iron. In other embodiments, they can also be made of other conductive materials.

[0066] Example 2:

[0067] like Figures 4 to 9 As shown, this embodiment provides an electrical connection assembly, including a terminal group 4, a cable 5, and a grounding structure as described in Embodiment 1. The terminal group 4 is electrically connected to the cable 5, and the grounding structure is electrically connected to the grounding terminal 42 of the terminal group 4. The terminal group 4 includes a plurality of signal terminals 41, a plurality of grounding terminals 42, and a first insulator 43. The plurality of signal terminals 41 and the plurality of grounding terminals 42 are all fixed to the first insulator 43. The cable 5 includes a grounding core 51 and a signal core 52. The grounding core 51 is electrically connected to the grounding terminal 42, and the signal core 52 is electrically connected to the signal terminal 41. Each signal core 52 of the cable 5 and the signal terminal 41 electrically connected to it form a signal transmission unit. At least one grounding terminal 42 is provided between two adjacent signal units.

[0068] The grounding terminal 42 has a first insertion channel 421 that mates with the insertion part 11. The first insertion channel 421 mates with the insertion part 11, thereby enabling rapid assembly of the first grounding component 1 and the grounding terminal 42 and ensuring connection stability.

[0069] The first insulator 43 has a second insertion channel 431 that mates with the plug-in portion 11. By providing the second insertion channel 431 in the first insulator 43 that mates with the plug-in portion 11, the connection stability between the first grounding member 1 and the grounding terminal 42 is further improved, and the plug-in portion 11 is facilitated to be inserted into the first insertion channel 421, thus serving as a guide for installation.

[0070] The first insulator 43 has a second engaging portion 432 that mates with the first engaging portion 211. In this embodiment, the first engaging portion 211 is a protrusion, and the second engaging portion 432 is a recess. In other embodiments, the first engaging portion 211 may be recessed, and the second engaging portion 432 may be a protrusion. The engagement of the first engaging portion 211 and the second engaging portion 432 improves the installation stability of the second grounding member 2 and ensures a stable electrical connection between the second grounding member 2 and the grounding terminal 42.

[0071] This also includes a second insulator 6, which wraps around the cable 5 and is connected to the first insulator 43. The first insulator 43 and the second insulator 6 together enclose a portion of the terminal group 4 and the cable 5, ensuring the stability of the connection between them.

[0072] All grounding terminals 42 are connected as a single unit via connecting arms 422. This facilitates the uniform installation of the grounding terminals 42 and allows for even current distribution among them, significantly reducing the overall grounding resistance. Furthermore, the connecting arms 422 enhance the mechanical strength of the entire grounding system by integrating all grounding terminals 42 into a single unit. This integrated structure provides better resistance to external forces such as vibration and impact, reducing the risk of grounding terminals 42 loosening or falling off.

[0073] Example 3:

[0074] like Figure 10 As shown, the difference between this embodiment and Embodiment Two is that:

[0075] In this embodiment, the grounding terminals 42 are distributed separately, and all grounding terminals 42 are not connected together.

[0076] Example 4:

[0077] like Figure 11 As shown, this embodiment provides an electrical connector, including an insulating housing 7 and at least one electrical connection component according to Embodiment 2, wherein the electrical connection component is at least partially disposed within the insulating housing 7. The terminal group 4 is inclined relative to the bottom surface of the insulating housing 7, which enables the electrical connector to be lower and saves space.

[0078] Example 5:

[0079] like Figure 12 As shown, this embodiment provides a connector assembly, including the electrical connector of Embodiment 4 and a mating connector 8 that mates with the electrical connector.

[0080] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grounding structure for grounding of a terminal set (4), characterized in that: comprising a first grounding member (1) and a second grounding member (2); the first grounding member (1) and the second grounding member (2) are respectively arranged on opposite sides of the terminal set (4); the first grounding member (1), the second grounding member (2) and a grounding terminal (42) of the terminal set (4) are electrically connected; the first grounding member (1) and / or the second grounding member (2) has a plug-in part (11) which is inserted into the grounding terminal (42) of the terminal set (4).

2. The grounding structure according to claim 1, characterized in that: the first grounding member (1) comprises a first conductive body (12) and the plug-in part (11) which is bent from the first conductive body (12).

3. The grounding structure according to claim 2, characterized in that: the plug-in part (11) is at least two; a first accommodation space (13) is formed between the first conductive body (12) and adjacent two plug-in parts (11).

4. The grounding structure according to claim 2, characterized in that: the second grounding member (2) comprises a second conductive body (21) and at least two protruding parts (22); a second accommodation space (23) is formed between the second conductive body (21) and adjacent two protruding parts (22).

5. The grounding structure according to claim 4, characterized in that: the second conductive body (21) and / or the protruding part (22) has the plug-in part (11).

6. The grounding structure according to claim 5, characterized in that: the plug-in part (11) comprises an extension segment (111) and a plug-in segment (112) which are connected to each other; the extension segment (111) is in contact with a side wall of the grounding terminal (42) of the terminal set (4), and the plug-in segment (112) penetrates through the grounding terminal (42) of the terminal set (4).

7. The grounding structure according to claim 4, characterized in that: the protruding part (22) is bent from the second conductive body (21).

8. The grounding structure according to claim 6, characterized in that: the protruding part (22) has a third accommodation space (221) which accommodates the plug-in segment (112) of the first grounding member (1).

9. The grounding structure according to claim 4, characterized in that: the second conductive body (21) has a first clamping part (211).

10. The grounding structure according to claim 1, characterized in that: a reinforcing plate (3) is connected to a side of the first grounding member (1) away from the second grounding member (2) and / or a side of the second grounding member (2) away from the first grounding member (1).

11. An electrical connection assembly, characterized in that: comprising a terminal set (4), a cable (5) and the grounding structure according to any one of claims 1-10; the terminal set (4) is electrically connected to the cable (5); the grounding structure is electrically connected to a grounding terminal (42) of the terminal set (4).

12. The electrical connection assembly according to claim 11, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The terminal group (4) comprises a plurality of signal terminals (41), a plurality of ground terminals (42), and a first insulator (43); The plurality of signal terminals (41) and the plurality of ground terminals (42) are fixed to the first insulator (43).

13. The electrical connection assembly according to claim 12, characterized in that: All the ground terminals (42) are connected as a whole by a connecting arm (422).

14. The electrical connection assembly according to claim 11, characterized in that: The ground terminal (42) has a first insertion channel (421) matched with the plug-in part (11).

15. The electrical connection assembly according to claim 12, characterized in that: The first insulator (43) has a second insertion channel (431) matched with the plug-in part (11).

16. The electrical connection assembly according to claim 12, characterized in that: The first insulator (43) has a second clamping part (432).

17. The electrical connection assembly according to claim 12, characterized in that: Further comprising a second insulator (6); The second insulator (6) wraps the cable (5); The second insulator (6) is connected with the first insulator (43).

18. The electrical connection assembly according to claim 12, characterized in that: The cable (5) comprises a ground wire core (51) and a signal wire core (52); The ground wire core (51) is electrically connected with the ground terminal (42); The signal wire core (52) is electrically connected with the signal terminal (41); The signal wire core (52) of each cable (5) and the signal terminal (41) electrically connected therewith form a signal transmission unit, and at least one ground terminal (42) is arranged between adjacent two signal transmission units.

19. An electrical connector, characterized in that: Comprising an insulating housing (7) and at least one electrical connection assembly according to any one of claims 11-18; The electrical connection assembly is at least partially arranged in the insulating housing (7).

20. The electrical connector according to claim 19, characterized in that: The terminal group (4) is arranged obliquely relative to the bottom surface of the insulating housing (7).

21. A connector assembly, characterized in that: Comprising the electrical connector according to any one of claims 19-20, and a mating connector (8) mated with the electrical connector.

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