High-speed cable shielding grounding structure

Abstract

The utility model discloses a high-speed cable shielding grounding structure, which comprises an insulating body, a PCB (Printed Circuit Board), a connecting wire, a shielding layer, a conductor and a fixing piece, through the arrangement of the electric conductor and the fixing piece, the electric conductor is clamped between the shielding layer and the PCB and is in contact conduction with the shielding layer and the PCB; a fixing piece is matched to be formed outside the shielding layer, and the PCB, the shielding layer and the electric conductor are wrapped and fixed together; the grounding function is realized by connecting the shielding layer and the grounding end of the PCB through the conductor; an additional grounding wire is not needed, so that the size of the connecting wire is effectively reduced; meanwhile, through wrapping and fixing of the fixing piece, even if the cable is twisted, the shielding layer can be protected by the fixing piece, the shielding performance is prevented from being affected by damage, and the stability of the overall structure is higher.

Description

Technical Field

[0001] This utility model relates to the field of high-speed cables, and in particular to a shielding and grounding structure for high-speed cables. Background Technology

[0002] With the continuous development of electronic technology, cables for signal transmission have undergone significant advancements. Communication cables transmit telephone, telegram, fax documents, television and radio programs, data, and other electrical signals. They offer advantages such as large communication capacity, high transmission stability, good confidentiality, and minimal susceptibility to natural conditions and external interference, providing a reliable data transmission medium. As is well known, communication cables can be used for short-range audio communication and long-range high-frequency carrier and digital communication and signal transmission. High-speed cables, in particular, require grounding to enhance shielding during signal transmission.

[0003] There are two main methods for shielding and grounding existing high-speed cables. Method one involves wrapping the cable with aluminum foil and then soldering two grounding wires from the foil to the grounding terminal on the PCB. However, this method increases the size of the connecting wires, thus reducing internal installation space. The other method involves wrapping the cable with copper foil and directly soldering it to the grounding terminal on the PCB. However, because the copper foil itself lacks structural strength, it is prone to cracking when the cable twists, resulting in insufficient overall structural stability and reduced shielding performance. Therefore, it is necessary to further improve the existing high-speed cable structure. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main objective is to provide a high-speed cable shielding and grounding structure that can effectively solve the problems of large connecting wire volume, easy cracking of copper foil, and insufficient structural stability in the existing high-speed cable shielding structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-speed cable shielding and grounding structure includes an insulating body, a PCB board, a connecting wire, a shielding layer, a conductor, and a fixing component. The insulating body has an insertion cavity with an open front end. The PCB board is disposed on the insulating body and located in the insertion cavity. The connecting wire is disposed in the insulating body, with one end extending inward into the insertion cavity and soldered to the PCB board, and the other end extending outward from the insulating body. The shielding layer is sleeved around the periphery of the connecting wire. The conductor is sandwiched between the shielding layer and the PCB board and makes contact with both the shielding layer and the PCB board, respectively. The fixing component is formed on the outside of the shielding layer and covers and fixes the PCB board, the shielding layer, and the conductor together.

[0007] As a preferred embodiment, the front end of the insulating body is provided with a removable protective shell, which is fitted onto the front end of the insulating body and covers the front opening of the insertion cavity.

[0008] As a preferred embodiment, the front end of the PCB board is provided with a plug-in portion for external insertion.

[0009] As a preferred embodiment, there are multiple connecting lines arranged sequentially, and multiple shielding layers are also provided, with each shielding layer covering two adjacent connecting lines together.

[0010] As a preferred embodiment, the rear ends of the plurality of connecting wires converge into two wire bundles and extend outward from the insulating body.

[0011] As a preferred embodiment, the outer casing of the shielding layer is provided with a protective sleeve.

[0012] As a preferred embodiment, a contact portion is provided on the PCB board, one side of the conductor is in contact with the shielding layer and the other side of the conductor is in contact with the contact portion.

[0013] As a preferred embodiment, the fastener is injection molded onto the outside of the shielding layer and encapsulates and fixes the PCB board, shielding layer, and conductor together.

[0014] As a preferred embodiment, the shielding layer is copper foil.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0016] By incorporating a conductor and a fixing element, the conductor is sandwiched between the shielding layer and the PCB board, making contact and conducting with both. The fixing element is formed outside the shielding layer, encasing and securing the PCB board, shielding layer, and conductor together. This allows grounding to be achieved by connecting the conductor to the grounding terminals of the shielding layer and the PCB board. No additional grounding wire is required, effectively reducing the size of the connecting wire. Furthermore, the fixing element protects the shielding layer from damage even if the cable is twisted, ensuring enhanced overall structural stability.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0019] Figure 2This is an exploded view of a preferred embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a partial assembly diagram of a preferred embodiment of the present invention.

[0022] Explanation of reference numerals in the attached diagram:

[0023] 10. Insulating body 101. Insertion cavity

[0024] 11. Protective case; 20. PCB board

[0025] 21. Connecting part; 22. Contact part

[0026] 30. Connecting wire; 31. Wire harness

[0027] 40. Shielding layer; 41. Protective sleeve

[0028] 50. Conductor; 60. Fixture. Detailed Implementation

[0029] Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an insulating body 10, a PCB board 20, a connecting wire 30, a shielding layer 40, a conductor 50, and a fixing member 60.

[0030] The insulating body 10 has an insertion cavity 101 with an opening at the front end. In this embodiment, the front end of the insulating body 10 is provided with a detachable protective shell 11. The protective shell 11 is fitted onto the front end of the insulating body 10 and covers the front opening of the insertion cavity 101. When it is not in use, the protective shell 11 can protect the front end of the insulating body 10 and the internal structure of the insertion cavity 101 and prevent dust.

[0031] The PCB board 20 is disposed on the insulating body 10 and located in the insertion cavity 101. In this embodiment, the front end of the PCB board 20 is provided with a plug-in portion 21 for external insertion. When plugged in with the external, the PCB board 20 makes contact with the external through the plug-in portion 21 and transmits the signal backward. A contact portion 22 is provided on the PCB board 20.

[0032] The connecting wire 30 is disposed within the insulating body 10. One end of the connecting wire 30 extends inward into the insertion cavity 101 and is soldered to the PCB board 20, while the other end extends outward from the insulating body 10. In this embodiment, multiple connecting wires 30 are arranged sequentially. The rear ends of the multiple connecting wires 30 converge into two wire bundles 31 and extend outward from the insulating body 10, enabling a modular design and preventing too many connecting wires 30 from extending out of the insulating body 10 and becoming tangled together, thus improving the overall integrity of the product.

[0033] The shielding layer 40 is sleeved around the periphery of the connecting wire 30. In this embodiment, multiple shielding layers 40 are provided, with each shielding layer 40 covering two adjacent connecting wires 30 together. Similarly, depending on the function of different high-speed cables and the number of internal connecting wires 30, different numbers of connecting wires can be covered together. The shielding layer 40 not only prevents the connecting wires 30 from being interfered with by external signals during transmission, but also prevents signal interference between different internal connecting wires 30. A protective sleeve 41 is provided over the shielding layer 40, which protects the portion of the shielding layer 40 that extends out of the fixing member 60. The shielding layer 40 is made of copper foil.

[0034] The conductor 50 is sandwiched between the shielding layer 40 and the PCB board 20 and makes contact with both the shielding layer 40 and the PCB board 20, thereby achieving the grounding function by connecting the shielding layer 40 and the grounding portion on the PCB board 20. In this embodiment, one side of the conductor 50 is in contact with the shielding layer 40 and the other side of the conductor 50 is in contact with the contact portion 22.

[0035] The fastener 60 is formed on the outside of the shielding layer 40 and covers and fixes the PCB board 20, the shielding layer 40, and the conductor 50 together, thereby protecting the connection between the PCB board 20, the shielding layer 40, and the conductor 50. Even if the cable is twisted, the shielding layer 40 will not be damaged, ensuring the stability of the overall structure and preventing damage to the shielding layer 40 from affecting its shielding performance. In this embodiment, the fastener 60 is formed on the outside of the shielding layer 40 by injection molding and covers and fixes the PCB board 20, the shielding layer 40, and the conductor 50 together. Injection molding makes the fastener 60 more secure in wrapping the connection between the PCB board 20, the shielding layer 40, and the conductor 50, further improving the stability of the structure. Similarly, fasteners of a specific shape can also be injection molded and then fixed together by adhesive bonding, without limitation.

[0036] During assembly, the conductor 50 is first bonded to the PCB board 20, then the shielding layer 40 is bonded to the conductor 50, and finally the fastener 60 is assembled.

[0037] The key design features of this invention are: by incorporating a conductor and a fixing element, the conductor is sandwiched between the shielding layer and the PCB board, making contact and conducting with both. The fixing element is formed outside the shielding layer, encasing and fixing the PCB board, shielding layer, and conductor together. This allows grounding to be achieved by connecting the conductor to the grounding terminals of the shielding layer and the PCB board. No additional grounding wire is required, effectively reducing the size of the connecting wire. Furthermore, the fixing element protects the shielding layer from damage even if the cable is twisted, ensuring enhanced overall structural stability.

[0038] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A high-speed cable shielding and grounding structure, characterized in that: The device includes an insulating body, a PCB board, connecting wires, a shielding layer, a conductor, and a fixing component. The insulating body has an insertion cavity with an open front end. The PCB board is mounted on the insulating body and located within the insertion cavity. The connecting wire is disposed within the insulating body, with one end extending inward into the insertion cavity and soldered to the PCB board, and the other end extending outward from the insulating body. The shielding layer is sleeved around the periphery of the connecting wire. The conductor is sandwiched between the shielding layer and the PCB board, and makes contact with both the shielding layer and the PCB board to conduct electricity. The fixing component is formed outside the shielding layer and covers and fixes the PCB board, the shielding layer, and the conductor together.

2. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The front end of the insulating body is provided with a detachable protective shell, which is fitted onto the front end of the insulating body and covers the front opening of the insertion cavity.

3. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The front end of the PCB board is provided with a connector for external insertion.

4. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The connecting lines are arranged in a series of multiple lines, and the shielding layers are also arranged in multiple ways, with each shielding layer covering two adjacent connecting lines together.

5. The high-speed cable shielding and grounding structure according to claim 4, characterized in that: The rear ends of the multiple connecting lines converge into two wire bundles and extend outwards from the insulating body.

6. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The outer casing of the shielding layer is provided with a protective sleeve.

7. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: A contact portion is provided on the PCB board, one side of the conductor is in contact with the shielding layer and conduction, and the other side of the conductor is in contact with the contact portion and conduction.

8. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The fastener is formed outside the shielding layer by injection molding and covers and fixes the PCB board, shielding layer and conductor together.

9. The high-speed cable shielding and grounding structure according to claim 1, characterized in that: The shielding layer is copper foil.

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