Grounding structure, electric connector and connector assembly

Abstract

The utility model discloses a grounding structure, an electric connector and a connector assembly, belonging to the connector field, the grounding structure is used for grounding a contact member, and comprises a first grounding member and a second grounding member, the first grounding member is inserted in the second grounding member, the first grounding member is electrically connected with the second grounding member, and the second grounding member is electrically connected with the electric connector. And the second grounding piece and / or the first grounding piece are / is electrically connected with the grounding unit of the contact piece. According to the grounding structure, the electric connector and the connector assembly provided by the utility model, the first grounding piece and the second grounding piece are in plug-in fit to form a low-impedance conduction path and a closed shielding loop, so that stable connection and vibration impact resistance can be realized, interference current can be discharged, electromagnetic coupling and crosstalk can be reduced, and the stability and accuracy of signal transmission can be effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of connectors, and particularly relates to a grounding structure, an electrical connector, and a connector assembly. Background Technology

[0002] In today's era of rapid digital and information technology development, electronic devices are being used more and more widely and deeply in various fields, placing increasingly higher demands on the performance of electrical connectors. As an indispensable key component in electronic devices, electrical connectors bear the important mission of realizing electrical connections and signal transmission.

[0003] With the continuous advancement of technology, electronic devices are becoming increasingly powerful. Existing electrical connectors not only need to transmit massive amounts of data, but also need to transmit data at higher rates. For example, in the field of high-speed communication, the widespread adoption of 5G technology has led to an exponential increase in data transmission volume, posing unprecedented challenges to the data transmission capabilities of electrical connectors. In the field of high-performance computing, the collaborative work of multi-core processors, large-capacity memory, and high-speed storage devices also requires electrical connectors to transmit large amounts of data quickly and accurately.

[0004] To meet these requirements, the number of grounding units, the density of grounding units, and the operating frequency of the electrical connectors all increase accordingly. However, this change also brings a series of problems, the most prominent of which is transmission interference. With the increase in the number and density of grounding units, the electromagnetic coupling effect between adjacent grounding units intensifies, easily leading to crosstalk, resulting in signal distortion and increased bit error rate. Simultaneously, the increased operating frequency of the electrical connectors also enhances electromagnetic radiation, further interfering with the normal operation of surrounding electronic equipment and potentially posing a threat to human health.

[0005] In terms of grounding design for electrical connectors, traditional grounding structures are often quite simple and struggle to effectively address the complex electromagnetic interference issues mentioned above. Therefore, there is an urgent need for a grounding structure, electrical connector, and connector assembly with excellent grounding shielding performance. Utility Model Content

[0006] The purpose of this invention is to provide a grounding structure, an electrical connector, and a connector assembly to overcome at least one of the aforementioned defects in the prior art.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The grounding structure provided by this utility model is used for grounding a contact element, including a first grounding element and a second grounding element. The first grounding element is inserted into the second grounding element, and the first grounding element and the second grounding element are electrically connected. The second grounding element and / or the first grounding element are electrically connected to the grounding unit of the contact element.

[0009] Preferably, the first grounding element includes a first conductor and at least one plug-in portion connected to the first conductor for plugging into and engaging with the second grounding element.

[0010] Preferably, there are at least two plug-in portions, and two adjacent plug-in portions in the length direction form a clearance space between themselves and the first conductor.

[0011] Preferably, the first grounding member further includes at least one first extension connected to the first conductor for electrical connection with the second grounding member.

[0012] Preferably, both the plug portion and the first extension portion are formed by bending from the first conductor.

[0013] Preferably, the first extension includes a first bent section and a first horizontal section, the first horizontal section being connected to the first conductor via the first bent section, and the first horizontal section being in contact with the second grounding member.

[0014] Preferably, the inner wall of the first conductor has several protrusions.

[0015] Preferably, the second grounding element includes a second conductor and a plurality of second extensions connected to the second conductor for electrical connection with the grounding unit of the contact element.

[0016] Preferably, the second conductor has a plurality of channels for the insertion of the first grounding element.

[0017] Preferably, the second extension includes a second bent section and a second horizontal section, the second horizontal section being connected to the second conductor via the second bent section, and the second horizontal section being electrically connected to the grounding unit of the contact.

[0018] Preferably, the second extension is formed by bending from the second conductor.

[0019] This invention also provides an electrical connector, including the grounding structure described above.

[0020] Preferably, the device further includes a cable and a contact element. The cable includes a conductor and a shielding layer covering the conductor. The contact element includes a signal unit and a grounding unit. Both the first grounding element and the second grounding element are electrically connected to the shielding layer. The conductor is electrically connected to the signal unit, and the second grounding element is electrically connected to the grounding unit.

[0021] Preferably, the contact is a conductive terminal group, the grounding unit is a grounding terminal, the signal unit is a signal terminal, and / or the contact is a circuit board, the grounding unit is a grounding pad, and the signal unit is a signal pad.

[0022] Preferably, it also includes a plastic body, with the contact element disposed inside the plastic body, and the cable electrically connected to the contact element and extending outward from the plastic body.

[0023] Preferably, it further includes a third grounding component, which is electrically connected to the grounding unit.

[0024] Preferably, the third grounding element includes at least one conductive unit, each conductive unit being used to connect two adjacent grounding units. The conductive unit includes a connecting portion and a covering portion, with connecting portions at both opposite ends of the covering portion. The connecting portion is electrically connected to the grounding unit, and the covering portion covers the signal unit between adjacent grounding units.

[0025] This invention also provides a connector assembly, including the aforementioned electrical connector and a mating connector that mates with the electrical connector.

[0026] The beneficial effects of this utility model are as follows:

[0027] 1. The first grounding component and the second grounding component are connected by plugging to form a low-impedance conduction path and a closed shielded loop, which can not only provide a stable connection and resist vibration and shock, but also discharge interference current, reduce electromagnetic coupling and crosstalk, and effectively ensure the stability and accuracy of signal transmission.

[0028] 2. Provide space for cables to pass through and limit the cable's movement, ensuring a stable connection between the cable and the contact, and ensuring a normal electrical connection.

[0029] 3. The first extension of the first grounding component further enhances the stability of the electrical connection between the first grounding component and the second grounding component by inserting the plug-in portion into the second grounding component.

[0030] 4. The plug-in part and the first extension part are formed by bending the first conductor. The overall structure is solid, with high mechanical strength, and can stably withstand external forces. The manufacturing process is simple, the contact resistance is low, the grounding effect is good, and it can also reduce signal interference and ensure high-speed data transmission.

[0031] 5. The first horizontal section of the first extension contacts the second grounding component, increasing the contact area and reducing resistance to ensure smooth current conduction and stable data transmission. The first bending section provides elastic buffering to prevent contact failure under vibration and shock, ensuring stable operation of the grounding structure.

[0032] 6. The protrusion on the inner side wall of the first conductor abuts against the cable shielding layer, increasing the contact pressure, reducing the resistance, providing a reliable discharge path, playing a shielding role, and ensuring accurate and stable signal transmission.

[0033] 7. The insertion channel and the connector are easy to install, the positioning is accurate, the connection is stable, and it is easy to maintain and replace.

[0034] 8. By setting the second horizontal section, the second extension and the grounding unit of the contact element have a large contact surface, ensuring effective conduction. The second bending section provides elasticity and installation flexibility, buffers external forces, and improves grounding reliability.

[0035] 9. The second extension is integrally bent and formed without splicing gaps, which has high mechanical strength, reduces contact resistance, ensures smooth conduction of grounding current, and guarantees stable signal transmission.

[0036] 10. The first and second grounding components are connected to the grounding unit and to the cable shielding layer to form a complete shielding path, isolate internal and external electromagnetic interference, improve the electromagnetic compatibility of the system, increase grounding redundancy, ensure grounding path, reduce safety risks and failure probability, and make the grounding current evenly distributed among the components. This connection method allows the electrical connector to adapt to different working environments and ensure grounding and shielding performance even in complex electromagnetic environments.

[0037] 11. The third grounding component is designed as a redundancy. When the grounding path fails, the other paths maintain the grounding function, thereby improving the system's fault tolerance. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of this utility model.

[0039] Figure 2 This is a right-side structural schematic diagram of the first grounding component in Embodiment 1 of this utility model.

[0040] Figure 3 This is a three-dimensional structural diagram of the first grounding component in Embodiment 1 of this utility model.

[0041] Figure 4 This is a three-dimensional structural schematic diagram of the second grounding component in Embodiment 1 of this utility model.

[0042] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.

[0043] Figure 6 This is a three-dimensional exploded structural diagram of Embodiment 2 of this utility model.

[0044] Figure 7 This is a top view of the contact element, the first grounding element, the second grounding element, and the cable in Embodiment 2 of this utility model.

[0045] Figure 8 This is a three-dimensional structural diagram of the third grounding component in Embodiment 2 of this utility model.

[0046] The labels in the attached diagram are as follows: 1-First grounding component, 2-Second grounding component, 11-First conductor, 12-Plug-in portion, 13-Giveaway space, 14-First extension portion, 141-First bending section, 142-First horizontal section, 15-Protrusion, 21-Second conductor, 22-Second extension portion, 23-Socket, 221-Second bending section, 222-Second horizontal section, 3-Cable, 4-Contact component, 31-Conductor, 32-Shielding layer, 41-Signal unit, 42-Grounding unit, 5-Plastic body, 6-Third grounding component, 61-Connection portion, 62-Cover portion. Detailed Implementation

[0047] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0048] 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.

[0049] Example 1:

[0050] like Figures 1 to 4 As shown, the grounding structure provided in this embodiment is used for grounding the contact 4, including a first grounding component 1 and a second grounding component 2. The first grounding component 1 is inserted into the second grounding component 2, the first grounding component 1 and the second grounding component 2 are electrically connected, and the second grounding component 2 is electrically connected to the grounding unit 42 of the contact 4.

[0051] The first grounding element 1 is inserted into the second grounding element 2, forming a continuous and stable electrical connection. This design provides a low-impedance conduction path for interference current, allowing it to be smoothly conducted from the grounding unit 42 of the contact element 4 through the second grounding element 2 to the first grounding element 1, and finally into the ground. Compared to the discontinuous or high-impedance connections that may exist in traditional grounding structures, this insertion method effectively reduces grounding resistance, thereby timely and effectively dissipating interference current and reducing its impact on signal transmission.

[0052] The insertion and mating method of the first grounding component 1 and the second grounding component 2 ensures good physical contact between them, thereby ensuring a stable electrical connection. In practical applications, even if the electrical connector is affected by external factors such as vibration and impact, this insertion structure can maintain a relatively stable connection state, avoid poor grounding due to loose connection, ensure grounding reliability, and further reduce interference current on signal transmission.

[0053] When the first grounding component 1 and the second grounding component 2 are properly electrically connected and connected to the grounding unit 42 of the contact component 4, they can together form a relatively closed shielding loop. In this embodiment, the second grounding component 2 is electrically connected by contacting the grounding unit 42. In other embodiments, the first grounding component 1 can be electrically connected by contacting the grounding unit 42, or both the first grounding component 1 and the second grounding component 2 can be electrically connected by contacting the grounding unit 42. Electrical connection can also be achieved through methods such as soldering. This shielding loop can effectively shield and absorb electromagnetic radiation generated inside the electrical connector, reducing electromagnetic radiation leakage into the surrounding environment and thus reducing interference to surrounding electronic equipment. Simultaneously, it can also prevent external electromagnetic interference from entering the electrical connector and affecting the stability of signal transmission.

[0054] By introducing interference current to the ground, the grounding structure reduces the electromagnetic coupling effect inside the electrical connector. For crosstalk issues between adjacent terminals caused by an increase in the number and density of terminals, this grounding structure can balance the potential between terminals, reducing the propagation of electromagnetic interference between terminals, thereby improving the accuracy and reliability of signal transmission.

[0055] The first grounding component 1 includes a first conductor 11 and at least one plug-in portion 12 connected to the first conductor 11 for mating with the second grounding component 2. Specifically, there are at least two plug-in portions 12, and two adjacent plug-in portions 12 in the length direction form a clearance space 13 with the first conductor 11. The clearance space 13 allows the cable 3 to pass through and limits the cable 3, thereby ensuring a stable connection between the cable 3 and the contact member 4 and ensuring a normal electrical connection.

[0056] The first grounding member 1 further includes at least one first extension 14 connected to the first conductor 11 for electrical connection with the second grounding member 2. In this embodiment, there are three first extensions 14, spaced apart. With the insertion portion 12 inserted into the second grounding member 2, the first extensions 14 further enhance the stability of the electrical connection between the first grounding member 1 and the second grounding member 2.

[0057] Both the plug-in portion 12 and the first extension portion 14 are formed by bending from the first conductor 11. Since the plug-in portion 12 and the first extension portion 14 are formed by bending from the same first conductor 11, the overall structure is robust, has high mechanical strength, can stably withstand external forces, has a simple manufacturing process, low contact resistance, good grounding effect, and can also reduce signal interference and ensure high-speed data transmission.

[0058] The first extension 14 includes a first bent section 141 and a first horizontal section 142. The first horizontal section 142 is connected to the first conductor 11 via the first bent section 141 and is in contact with the second grounding component 2. This structural design of the first extension 14 increases the contact area between the first horizontal section 142 and the second grounding component 2. A larger contact area reduces contact resistance, allows for smoother current conduction, improves grounding performance, reduces interference on the signal transmission of the electrical connector, and ensures stable data transmission. The first bent section 141 connects the first conductor 11 and the first horizontal section 142, providing elastic support for the first horizontal section 142. When the electrical connector is subjected to vibration or impact, the first bent section 141 acts as a buffer, preventing the first horizontal section 142 from losing contact with the second grounding component 2, ensuring a stable electrical connection between the first grounding component 1 and the second grounding component 2, and maintaining the normal operation of the grounding structure.

[0059] The inner wall of the first conductor 11 has several protrusions 15. These protrusions 15 tightly abut against the shielding layer 32 of the cable 3, increasing the contact pressure and ensuring a stable electrical connection between them. This effectively reduces contact resistance and provides a more reliable discharge path for interference current. The robust connection allows the shielding layer 32 of the cable 3 to fully exert its shielding effect, effectively preventing external electromagnetic interference from entering the cable 3 and preventing signal leakage from within the cable 3, thus ensuring the accuracy and stability of signal transmission.

[0060] The second grounding component 2 includes a second conductor 21 and several second extensions 22 connected to the second conductor 21 for electrical connection with the grounding unit 42 of the contact 4. The second conductor 21 has several insertion channels 23 for the first grounding component 1 to be inserted. In this embodiment, the insertion channels 23 are sockets, but in other embodiments they can be slots. This mating method between the insertion portion 12 and the insertion channels 23 makes installation convenient and allows connection to be completed without complicated operations. Moreover, the positioning is precise, ensuring accurate docking of the first grounding component 1 and the second grounding component 2, providing strong stability and preventing loosening under external force, thus ensuring a stable electrical connection. At the same time, it facilitates later maintenance, making it convenient to disassemble and replace the grounding component when problems occur.

[0061] The second extension 22 includes a second bent section 221 and a second horizontal section 222. The second horizontal section 222 is connected to the second conductor 21 via the second bent section 221 and is electrically connected to the grounding unit 42 of the contact 4. The second horizontal section 222 provides a larger contact surface between the second extension 22 and the grounding unit 42 of the contact 4, ensuring effective conductivity. The second bent section 221 connects the second conductor 21 and the second horizontal section 222, providing the second horizontal section 222 with a certain degree of elasticity and installation flexibility. It can adapt to the position and shape of the grounding unit 42 of different contact 4 members, ensuring that the second horizontal section 222 always maintains good contact with the grounding unit 42. Simultaneously, during equipment operation, when subjected to external forces such as vibration and impact, the second bent section 221 can buffer the impact, preventing the second horizontal section 222 from detaching from the grounding unit 42 and improving the reliability of the grounding structure.

[0062] In this embodiment, the first horizontal segment 142 and the second horizontal segment 222 are in contact, further optimizing the grounding path. This contact not only expands the overall grounding connection area but also strengthens the electrical connection between the first grounding component 1, the second grounding component 2, and the grounding unit 42 of the contact component 4. This results in a tighter and more reliable grounding structure, effectively improving anti-interference capabilities and ensuring signal transmission quality.

[0063] The second extension 22 is formed by bending the second conductor 21, resulting in a seamless overall structure with high mechanical strength. This effectively resists external impacts and vibrations, ensuring a stable contact or connection with the grounding unit 42 even in complex environments, preventing loosening or detachment. Furthermore, the integrated structure avoids contact resistance caused by component splicing, reducing current transmission loss, ensuring smooth grounding current conduction, improving the reliability of the grounding system, and guaranteeing stable signal transmission from the electrical connector.

[0064] Example 2:

[0065] like Figures 5 to 8 As shown, this embodiment provides an electrical connector, including the grounding structure of Embodiment 1.

[0066] The system includes cable 3 and contact element 4. Cable 3 includes conductor 31 and shielding layer 32 covering conductor 31. Contact element 4 includes signal unit 41 and grounding unit 42. First grounding element 1 and second grounding element 2 are both electrically connected to shielding layer 32. Conductor 31 is electrically connected to signal unit 41, and second grounding element 2 is electrically connected to grounding unit 42. By electrically connecting grounding unit 42 with first grounding element 1 and second grounding element 2, and combining this with the electrical connection of cable 3 shielding layer 32 to first grounding element 1 and second grounding element 2, a continuous and complete electromagnetic shielding path is formed. Connecting grounding unit 42 with first grounding element 1 and second grounding element 2, and then connecting it to cable 3 shielding layer 32, effectively isolates the signal inside cable 3 from external electromagnetic interference, prevents the signal inside cable 3 from radiating outward, reduces the impact of electromagnetic interference on surrounding equipment, and improves the electromagnetic compatibility of the entire system. The connection of first grounding element 1, second grounding element 2, grounding unit 42, and cable 3 shielding layer 32 increases grounding redundancy. Even if one grounding component fails or has poor contact, the other grounding component can still ensure the integrity of the grounding path, ensuring that the current can be safely and stably conducted to the ground, reducing the safety risks and equipment failure probability caused by poor grounding. Furthermore, it allows the grounding current to be more evenly distributed among the first grounding component 1, the second grounding component 2, and the cable 3 shielding layer 32. This avoids the current concentration phenomenon that may occur with a single grounding path, reduces problems such as local overheating and electro-corrosion, and extends the service life of the electrical connector and related equipment. This connection method improves the adaptability of the electrical connector in different working environments. Whether in industrial environments with strong electromagnetic interference or in communication fields where signal transmission stability is extremely important, it can guarantee good grounding and shielding performance, ensuring the normal operation of the equipment.

[0067] In this embodiment, contact 4 is a conductive terminal group, grounding unit 42 is a grounding terminal, and signal unit 41 is a signal terminal. In other embodiments, it can also be a circuit board, with grounding unit 42 being a ground pad and signal unit 41 being a signal pad. Contact 4 can also be a circuit board and conductive terminal group, grounding unit 42 can also be a grounding terminal and contact pad, and signal unit 41 can also be a signal terminal and signal pad. In this embodiment, the grounding terminals of the conductive terminal group are connected together through a grounding structure and electrically connected to the shielding layer 32 of cable 3, thus improving crosstalk.

[0068] It also includes a plastic body 5, a contact 4 disposed inside the plastic body 5, and a cable 3 electrically connected to the contact 4 and extending outward from the plastic body 5.

[0069] The system also includes a third grounding element 6, which is electrically connected to the grounding unit 42. The third grounding element 6 includes at least one conductive unit, each of which connects two adjacent grounding units 42. Each conductive unit includes a connecting portion 61 and a covering portion 62. Both ends of the covering portion 62 have connecting portions 61, which are electrically connected to the grounding unit 42. The covering portion 62 covers the signal unit 41 between adjacent grounding units 42. The conductive units of the third grounding element 6 connect adjacent grounding units 42, creating a denser and more efficient grounding network, reducing grounding impedance, allowing interference current to dissipate quickly, ensuring stable operation of the grounding system, and reducing signal transmission problems caused by poor grounding. The covering portion 62 of the conductive unit covers the signal unit 41 between adjacent grounding units 42, forming an additional shielding layer 32. This effectively blocks external electromagnetic interference from affecting the signal unit 41, while also preventing electromagnetic crosstalk between signal units 41, improving the purity and stability of signal transmission. Adding the third grounding element 6 serves as a redundancy design; when one grounding path fails, other paths can still maintain grounding function, improving system fault tolerance.

[0070] The first grounding element 1, the second grounding element 2, and the third grounding element 6 provided in this embodiment can be made of metal, conductive plastic, or any other suitable material. As used in this application, "conductive plastic" refers to plastic material that has conductive properties itself, or plastic material with conductive medium added or coated with conductive medium to make the plastic material conductive. In this embodiment, the first grounding element 1, the second grounding element 2, and the third grounding element 6 are all made of metal.

[0071] Example 3:

[0072] This embodiment provides a connector assembly, including the electrical connector of Embodiment 2 and a mating connector (not shown) that mates with the electrical connector.

[0073] 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 the contact (4), characterized in that: It includes a first grounding component (1) and a second grounding component (2); The first grounding component (1) is inserted into the second grounding component (2); The first grounding element (1) is electrically connected to the second grounding element (2), and the second grounding element (2) and / or the first grounding element (1) are electrically connected to the grounding unit (42) of the contact element (4).

2. The grounding structure according to claim 1, characterized in that: The first grounding member (1) includes a first conductor (11) and at least one plug-in portion (12) connected to the first conductor (11) for plugging and engaging with the second grounding member (2).

3. The grounding structure according to claim 2, characterized in that: There are at least two plug-in portions (12); A clearance space (13) is formed between two adjacent plug portions (12) in the length direction and the first conductor (11).

4. The grounding structure according to claim 2, characterized in that: The first grounding member (1) further includes at least one first extension (14) connected to the first conductor (11) for electrical connection with the second grounding member (2).

5. The grounding structure according to claim 4, characterized in that: Both the plug portion (12) and the first extension portion (14) are formed by bending from the first conductor (11).

6. The grounding structure according to claim 4, characterized in that: The first extension (14) includes a first bent section (141) and a first horizontal section (142); The first horizontal segment (142) is connected to the first conductor (11) through the first bent segment (141); The first horizontal segment (142) is in contact with the second grounding element (2).

7. The grounding structure according to claim 2, characterized in that: The inner wall of the first conductor (11) has several protrusions (15).

8. The grounding structure according to claim 1, characterized in that: The second grounding member (2) includes a second conductor (21) and a plurality of second extensions (22) connected to the second conductor (21) for electrical connection with the grounding unit (42) of the contact member (4).

9. The grounding structure according to claim 8, characterized in that: The second conductor (21) has a plurality of channels (23) for the first grounding member (1) to be inserted.

10. The grounding structure according to claim 8, characterized in that: The second extension (22) includes a second bent section (221) and a second horizontal section (222); The second horizontal segment (222) is connected to the second conductor (21) through the second bent segment (221); The second horizontal segment (222) is electrically connected to the grounding unit (42) of the contact (4).

11. The grounding structure according to claim 8, characterized in that: The second extension (22) is formed by bending the second conductor (21).

12. An electrical connector, characterized in that: Includes the grounding structure described in any one of claims 1-11.

13. The electrical connector according to claim 12, characterized in that: It also includes cables (3) and contacts (4); The cable (3) includes a conductor (31) and a shielding layer (32) covering the conductor (31); The contact (4) includes a signal unit (41) and a grounding unit (42); The first grounding element (1) and the second grounding element (2) are both electrically connected to the shielding layer (32); The conductor (31) is electrically connected to the signal unit (41); The second grounding component (2) is electrically connected to the grounding unit (42).

14. The electrical connector according to claim 13, characterized in that: The contact (4) is a conductive terminal group, the grounding unit (42) is a grounding terminal, and the signal unit (41) is a signal terminal; And / or the contact (4) is a circuit board, the grounding unit (42) is a grounding pad, and the signal unit (41) is a signal pad.

15. The electrical connector according to claim 13, characterized in that: It also includes the plastic body (5); The contact element (4) is disposed within the plastic body (5); The cable (3) is electrically connected to the contact (4) and extends outward from the plastic body (5).

16. The electrical connector according to claim 13, characterized in that: It also includes a third grounding component (6); The third grounding component (6) is electrically connected to the grounding unit (42).

17. The electrical connector according to claim 16, characterized in that: The third grounding element (6) includes at least one conductive unit, each conductive unit being used to connect two adjacent grounding units (42); The conductive unit includes a connecting part (61) and a covering part (62); The covering part (62) has a connecting part (61) at each of its opposite ends; The connecting part (61) is electrically connected to the grounding unit (42); The covering part (62) covers the signal unit (41) between adjacent grounding units (42).

18. A connector assembly, characterized in that: Includes the electrical connector as described in any one of claims 12-17, and a mating connector that mates with said electrical connector.

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