Novel shielded wire

By introducing a composite structure of protective layer, shielding layer, tensile layer, fireproof and waterproof layer and insulation layer into the shielded cable, the problem of easy breakage of the shielded cable under high mechanical stress environment is solved, and higher tensile strength and signal stability are achieved, making it suitable for complex working conditions and humid environments.

CN223842654UActive Publication Date: 2026-01-27SHENZHEN GUANLI XIANYI PROD CO LTD
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Patent Information

Application Number
CN202520397271.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-08
Publication Date
2026-01-27
Estimated Expiration
2035-03-08

AI Technical Summary

Technical Problem

Existing shielded cables are prone to breakage under high mechanical stress environments due to insufficient tensile strength, which affects the stability of signal transmission and the reliability of equipment.

Method used

The cable employs a composite structure design consisting of a protective layer, a shielding layer, a tensile layer, a fireproof and waterproof layer, a connecting layer, and an insulation layer. It includes reinforcing ribs and connecting rings, and uses high-strength materials and a special arrangement to enhance the cable's mechanical and protective properties.

Benefits of technology

It improves the tensile strength of the shielding cable, preventing the cable from breaking in high mechanical stress environments, enhancing the stability of signal transmission and the reliability of equipment, and is suitable for complex working conditions and humid or underwater environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shielded wires, and discloses a novel shielded wire which comprises a protective layer, a connecting layer is arranged on the inner wall of the protective layer, reinforcing ribs are arranged on the inner wall of the connecting layer, the reinforcing ribs are arranged in the connecting layer in a circular array mode and wound in a twisted shape, a shielding layer is arranged on the inner wall of the protective layer, and the shielding layer is arranged on the inner wall of the protective layer. A tensile layer is arranged on the inner wall of the shielding layer, a fireproof and waterproof layer is arranged on the inner wall of the tensile layer, the tensile layer comprises connecting rings and connecting blocks, and the connecting blocks and the connecting rings are fixedly arranged on the inner wall of the shielding layer in a staggered mode. According to the utility model, the internal structure is protected from mechanical damage through the protection layer, moisture permeation is prevented through the fireproof and waterproof layer, the fireproof performance of the cable is improved, the shielding layer prevents electromagnetic interference and radio frequency interference from influencing signal transmission, and the problem that the shielding wire is easy to damage in use due to poor protection performance of the shielding wire is solved; and the stability of the shielded wire is improved.
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Description

Technical Field

[0001] This utility model relates to the field of shielded wire technology, and in particular to a novel shielded wire. Background Technology

[0002] Shielded cable is a type of cable used to transmit electrical signals or energy. Its core feature is that the conductor is wrapped with a shielding layer to prevent external electromagnetic interference and radio frequency interference from affecting signal transmission. Shielded cable is widely used in communications, industrial control, medical equipment, and high-frequency signal transmission, effectively reducing signal loss and noise interference, and ensuring the stability and reliability of signal transmission.

[0003] A novel type of shielded cable in the prior art typically includes a multi-functional layer structure to meet the needs of high-performance applications. Its core structure includes a conductor layer, usually made of highly conductive materials such as copper or copper-clad aluminum, for transmitting electrical signals or power; an insulation layer, made of materials such as polyethylene, polyvinyl chloride, or cross-linked polyethylene, to prevent electrical short circuits; a shielding layer, such as copper wire braid, aluminum foil, or metallized film, to prevent electromagnetic interference and radio frequency interference; and a sheath layer, made of wear-resistant and corrosion-resistant materials, to protect the internal structure from mechanical damage and environmental factors.

[0004] However, a significant problem exists in existing technologies: the lack of a dedicated tensile structure makes the cables prone to breakage under high tensile force. In high mechanical stress environments, traditional shielded cables are prone to breakage or internal structural damage due to insufficient tensile strength, affecting the stability of signal transmission and the reliability of equipment operation. Therefore, a new type of shielded cable is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a new type of shielded wire, which aims to improve the problems of XX in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel shielded cable includes a protective layer, an inner wall of which is provided with a connecting layer, and an inner wall of which is provided with reinforcing ribs. The reinforcing ribs are arranged in a circular array inside the connecting layer and are twisted in a spiral shape.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the protective layer is provided with a shielding layer, the inner wall of the shielding layer is provided with a tensile layer, and the inner wall of the tensile layer is provided with a fireproof and waterproof layer.

[0010] As a further description of the above technical solution:

[0011] The tensile layer includes connecting rings and connecting blocks, which are staggered and fixed to the inner wall of the shielding layer. The inner wall of the tensile layer is provided with a fireproof and waterproof layer, and the outer wall of the tensile layer is provided to the inner wall of the shielding layer.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the fireproof and waterproof layer is set on the outer wall of the connecting layer, the inner wall of the connecting layer is provided with an insulating layer, and the inner wall of the insulating layer is provided with a filling layer.

[0014] As a further description of the above technical solution:

[0015] The filling layer contains wires arranged in a twisted pattern.

[0016] As a further description of the above technical solution:

[0017] The thickness of the protective layer, shielding layer, and insulating layer is 2.5 mm.

[0018] As a further description of the above technical solution:

[0019] The thickness of both the connecting layer and the tensile layer is 5 mm.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, the internal structure is protected from mechanical damage by a protective layer, and water-proof and fireproof layers prevent moisture penetration, thus improving the fire resistance of the cable. The shielding layer prevents electromagnetic interference and radio frequency interference from affecting signal transmission. This solves the problem of poor shielding performance in existing technologies, which leads to easy damage to shielded cables in actual use, and improves the stability of the shielded cables. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a novel shielding wire proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the protective layer of a novel shielding wire proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the filling layer of a novel shielding wire proposed in this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Protective layer; 2. Shielding layer; 3. Tensile layer; 4. Fireproof and waterproof layer; 5. Connecting layer; 6. Reinforcing rib; 7. Insulation layer; 8. Filling layer; 9. Wire; 10. Connecting ring; 11. Connecting block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-4 This utility model provides an embodiment of a novel shielded cable, comprising a protective layer 1 made of high-strength polyurethane material, which has excellent wear resistance, tear resistance, and weather resistance, effectively protecting the cable exterior from mechanical damage and environmental corrosion, and is suitable for long-term use under complex working conditions. A connecting layer 5 is provided on the inner wall of the protective layer 1, made of high-density polyethylene material, which has high strength and corrosion resistance, providing stable support and connection for the internal structure. Reinforcing ribs 6 are provided on the inner wall of the connecting layer 5, made of high-strength aramid fiber material, which has lightweight, high tensile strength, and fatigue resistance, and are arranged in a circular array inside the connecting layer 5 in a twisted manner. A tensile layer 3 includes connecting rings 10 and connecting blocks 11, which are staggered and fixed to the inner wall of the shielding layer 2. A fireproof and waterproof layer 4 is provided on the inner wall of the tensile layer 3, made of low-smoke halogen-free flame-retardant material, which has excellent fire resistance and waterproof properties. Yes, it can prevent moisture penetration and reduce fire risk, and is suitable for humid or underwater environments. The outer wall of the tensile layer 3 is set on the inner wall of the shielding layer 2. The shielding layer 2 is made of a composite material of woven copper mesh and aluminum foil, which has a high shielding coverage and can effectively prevent electromagnetic interference and radio frequency interference, ensuring the purity and stability of signal transmission. The inner wall of the fireproof and waterproof layer 4 is set on the outer wall of the connecting layer 5. The inner wall of the connecting layer 5 is set with an insulation layer 7. The insulation layer 7 is made of cross-linked polyethylene, which has excellent insulation, high temperature resistance and chemical corrosion resistance, and can effectively isolate the conductor from the external environment, preventing short circuits and signal interference. The inner wall of the insulation layer 7 is set with a filling layer 8. The filling layer 8 is made of polyester fiber, which is lightweight and highly elastic, and can fill the gaps inside the cable, enhancing the mechanical strength and tensile performance of the cable. The filling layer 8 is set with a conductor 9, which is twisted inside the filling layer 8. The thickness of the protective layer 1, shielding layer 2 and insulation layer 7 is 2.5mm, and the thickness of the connecting layer 5 and tensile layer 3 is 5mm.

[0030] Specifically, when using the new type of shielded cable, the protective layer 2 first prevents accidental scratches and cuts to the outer sheath during use, ensuring the integrity and durability of the cable's exterior. Simultaneously, the shielding layer 2 effectively prevents electromagnetic interference and radio frequency interference, thus guaranteeing the purity and stability of signal transmission and preventing signal distortion or interruption caused by external interference. Subsequently, the tensile layer 3, designed for high mechanical stress environments and made of lightweight, high-strength materials, not only reduces the overall weight of the cable but also prevents breakage due to pulling during installation or use. Next, the fireproof and waterproof layer 4 effectively prevents moisture penetration, making the cable suitable for humid or underwater environments while improving its fire resistance, reducing fire risk, and ensuring safe use in complex environments. The connecting layer 5 serves to connect the reinforcing ribs 6, providing a stable connection space. The reinforcing ribs 6 further improve the tensile strength of the shielded cable, preventing breakage due to pulling during installation or use and enhancing the cable's mechanical properties. Insulation layer 7 isolates the conductor from the external environment, preventing short circuits and signal interference, and ensuring stable transmission of current and signals. Filler layer 8 fills the internal gaps of the cable, enhancing its mechanical strength and tensile properties, allowing it to maintain structural integrity even under external forces. Finally, the interconnected design of connecting ring 10 and connecting block 11 further improves the cable's tensile strength and overall strength, enabling it to meet higher-intensity installation and usage requirements.

[0031] Working principle: When using the new type of shielded cable, the protective layer 2 first prevents accidental scratches and cuts to the outer sheath during use. Then, the shielding layer 2 prevents electromagnetic interference and radio frequency interference, which can affect signal transmission. Subsequently, the tensile layer 3 is suitable for high mechanical stress environments. It uses lightweight and high-strength materials to reduce the weight of the cable and prevent it from breaking due to pulling during installation or use. Then, the fireproof and waterproof layer 4 prevents water penetration, making it suitable for humid or underwater environments and improving the fire resistance of the cable, reducing the risk of fire. The connecting layer 5 is used to connect the reinforcing ribs 6, providing a connection space. The reinforcing ribs 6 improve the tensile strength of the shielded cable and prevent it from breaking due to pulling during installation or use. The insulation layer 7 isolates the conductor from the external environment, preventing short circuits and signal interference. The filling layer 8 fills the gaps inside the cable, enhancing the mechanical strength and tensile performance of the cable. The interconnection of the connecting ring 10 and the connecting block 11 improves the tensile strength and overall strength of the cable.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel shielded cable, comprising a protective layer (1), characterized in that: The inner wall of the protective layer (1) is provided with a connecting layer (5), and the inner wall of the connecting layer (5) is provided with reinforcing ribs (6). The reinforcing ribs (6) are arranged in a circular array inside the connecting layer (5), and the reinforcing ribs (6) are twisted in a spiral shape.

2. The novel shielded wire according to claim 1, characterized in that: The inner wall of the protective layer (1) is provided with a shielding layer (2), the inner wall of the shielding layer (2) is provided with a tensile layer (3), and the inner wall of the tensile layer (3) is provided with a fireproof and waterproof layer (4).

3. The novel shielded wire according to claim 2, characterized in that: The tensile layer (3) includes a connecting ring (10) and a connecting block (11). The connecting block (11) and the connecting ring (10) are staggered and fixed on the inner wall of the shielding layer (2). The inner wall of the tensile layer (3) is provided with a fireproof and waterproof layer (4). The outer wall of the tensile layer (3) is provided on the inner wall of the shielding layer (2).

4. A novel shielded wire according to claim 3, characterized in that: The inner wall of the fireproof and waterproof layer (4) is provided on the outer wall of the connecting layer (5), the inner wall of the connecting layer (5) is provided with an insulating layer (7), and the inner wall of the insulating layer (7) is provided with a filling layer (8).

5. A novel shielded wire according to claim 4, characterized in that: The filling layer (8) is provided with a wire (9), which is arranged in a twisted shape inside the filling layer (8).

6. A novel shielded wire according to claim 5, characterized in that: The thickness of the protective layer (1), shielding layer (2), and insulating layer (7) is 2.5 mm.

7. A novel shielded wire according to claim 5, characterized in that: The thickness of both the connecting layer (5) and the tensile layer (3) is 5 mm.