A connecting wire for electronic products

Abstract

This utility model relates to a connecting wire for electronic products, comprising, from the inside out, a conductor, an insulation layer, a shielding layer, a reinforcing layer, and a sheath. The shielding layer consists of an inner shielding layer and an outer shielding layer. The inner shielding layer is a conductive metal foil layer wrapped around the wire, and the outer shielding layer is a woven tin-plated metal mesh layer. The conductive surface of the inner shielding layer is tightly attached to the outer surface of the insulation layer. The reinforcing layer is composed of multiple strands of synthetic fiber bundles and a braided layer tightly wrapped around the synthetic fiber bundles. The synthetic fiber bundles extend along the axial direction of the wire and are evenly distributed around the periphery of the shielding layer. The braided reinforcing layer is made of flexible fiber material cross-woven together, achieving effective complementarity of high and low frequency electromagnetic shielding, greatly improving the tensile strength of the wire, preventing breakage due to pulling during wiring or daily use, and giving the wire excellent anti-torsion, anti-compression, and anti-impact properties.

Description

Technical Field

[0001] This utility model relates to the field of wires, and in particular to a connecting wire for electronic products. Background Technology

[0002] Connecting wires used in electronic products are essential components for signal transmission and power supply in various electronic devices, and their performance directly affects the stability and reliability of the equipment. As electronic products develop towards higher frequencies, higher speeds, and higher densities, connecting wires not only need to have excellent conductivity and insulation properties, but also need to be able to effectively resist external electromagnetic interference and adapt to complex operating environments such as frequent bending, movement, and pulling.

[0003] Currently, most common connecting wires employ a single-layer shielding structure, such as a simple metal braided layer or an aluminum foil wrapping layer. These structures offer limited shielding effectiveness at certain frequency bands and struggle to simultaneously and effectively suppress both high-frequency and low-frequency electromagnetic interference. Furthermore, traditional wires often lack systematic reinforcement in their mechanical structure design, making the shielding layer prone to damage under frequent bending, pulling, or pressure. This leads to unstable signal transmission and may even cause wire breakage or permanent deformation, severely impacting the wire's lifespan and transmission performance. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a connecting wire for electronic products, which can effectively solve the technical problems of incomplete shielding frequency bands and easy breakage.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A connecting wire for electronic products includes a conductor, an insulation layer, a shielding layer, a reinforcing layer, and a sheath arranged sequentially from the inside to the outside. The shielding layer consists of an inner shielding layer and an outer shielding layer. The inner shielding layer is a layer of conductive metal foil wrapped around the wire, and the outer shielding layer is a layer of tin-plated metal mesh woven into a braid. The conductive surface of the inner shielding layer is tightly attached to the outer surface of the insulation layer.

[0007] The reinforcing layer is composed of multiple strands of synthetic fiber bundles and a braided layer tightly wrapped around the synthetic fiber bundles. The synthetic fiber bundles extend along the wire axis and are evenly distributed around the periphery of the shielding layer. The braided reinforcing layer is made of flexible fiber material cross-woven together, with the axially extending synthetic fibers tightly embedded in the braided reinforcing layer. The sheath is extruded onto the outside of the reinforcing layer. The inner wall of the sheath fills the mesh gaps of the braided reinforcing layer and is tightly bonded to the internal reinforcing layer and shielding layer.

[0008] Furthermore, the conductor is made of multiple strands of fine metal wire twisted together, and its cross-section is circular or polygonal.

[0009] Furthermore, the conductive metal foil layer of the inner shielding layer is a single-sided conductive aluminum-plastic composite foil, with its conductive surface facing the insulating layer.

[0010] Furthermore, the synthetic fiber bundle is composed of para-aramid fiber bundles or ultra-high molecular weight polyethylene fiber bundles.

[0011] Furthermore, the braiding angle of the flexible fibers in the braided reinforcing layer is greater than 45°.

[0012] Furthermore, the braiding angle of the flexible fibers in the braided reinforcing layer is 55°-65°.

[0013] Furthermore, the outer surface of the sheath is provided with anti-slip textures distributed at intervals along the axial direction.

[0014] Compared with existing technologies, the advantages of this invention are as follows: The dual shielding structure, consisting of a conductive metal foil wrapping layer and a tin-plated metal wire braided layer, effectively complements high- and low-frequency electromagnetic shielding. The inner shielding layer's metal foil layer has high coverage, effectively suppressing high-frequency interference. The outer shielding layer's tin-plated metal wire braided layer provides excellent low-frequency shielding performance and mechanical protection, significantly improving the wire's anti-interference capability in complex electromagnetic environments. The reinforcing layer uses a composite structure of multi-strand synthetic fiber bundles and the braided layer. The axially extending high-strength synthetic fiber bundles greatly enhance the wire's tensile strength, preventing breakage due to pulling during wiring or daily use. The outer braided reinforcing layer is made of flexible fiber material cross-woven, which not only firmly binds the axial fiber bundles and prevents them from dispersing, but also endows the wire with excellent torsional, compressive, and impact resistance, allowing the wire to maintain structural integrity under harsh environments such as frequent bending and pressure, avoiding permanent deformation or damage. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a radial cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is an axial cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the shielding layer in this utility model;

[0019] Figure 5 This is a schematic diagram of the reinforcing layer in this utility model;

[0020] The numbers in the diagram are: 1-conductor, 2-insulating layer, 3-shielding layer, 301-conductive metal foil layer, 302-tin-plated metal wire mesh layer, 4-reinforcing layer, 401-synthetic fiber bundle, 402-braided layer, 5-sheath, 501-anti-slip texture. Detailed Implementation

[0021] 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.

[0022] The following is combined Figures 1-5 This utility model provides a detailed description of a connecting wire for electronic products:

[0023] A connecting wire for electronic products includes a conductor 1, an insulation layer 2, a shielding layer 3, a reinforcing layer 4, and a sheath 5 arranged sequentially from the inside to the outside. The shielding layer 3 is composed of an inner shielding layer 3 and an outer shielding layer 3. The inner shielding layer 3 is a conductive metal foil layer 301 wrapped around the wire, and the outer shielding layer 3 is a tin-plated metal mesh layer 302 woven together. The conductive surface of the inner shielding layer 3 is tightly attached to the outer surface of the insulation layer 2.

[0024] The reinforcing layer 4 is composed of multiple strands of synthetic fiber bundles 401 and a braided layer 402 tightly wrapped around the synthetic fiber bundles 401. The synthetic fiber bundles 401 extend along the wire axis and are evenly distributed around the circumferential periphery of the shielding layer 3. The braided reinforcing layer 4 is made of flexible fiber material cross-woven together, with the axially extending synthetic fibers tightly embedded in the braided reinforcing layer 4. The sheath 5 is extruded onto the outside of the reinforcing layer 4. The inner wall of the sheath 5 fills the mesh gaps of the braided reinforcing layer 4 and is tightly bonded to the internal reinforcing layer 4 and shielding layer 3.

[0025] A dual shielding structure consisting of a conductive metal foil wrapping layer and a tin-plated metal wire braided layer 402 effectively complements high- and low-frequency electromagnetic shielding. The inner shielding layer 3's metal foil layer has high coverage, effectively suppressing high-frequency interference. The outer shielding layer 3's tin-plated metal wire braided layer 402 provides excellent low-frequency shielding performance and mechanical protection, significantly improving the wire's anti-interference capability in complex electromagnetic environments. The reinforcing layer 4 uses a composite structure of multi-strand synthetic fiber bundles 401 and the braided layer 402. The axially extending high-strength synthetic fiber bundles 401 greatly enhance the wire's tensile strength, preventing breakage due to pulling during wiring or daily use. The outer braided reinforcing layer 4 is made of flexible fiber material cross-woven, which not only firmly binds the axial fiber bundles and prevents them from dispersing, but also gives the wire excellent resistance to torsion, compression, and impact, allowing the wire to maintain structural integrity under harsh environments such as frequent bending and pressure, avoiding permanent deformation or damage.

[0026] The conductor 1 is made of multiple strands of fine metal wires twisted together, with a circular or polygonal cross-section. The twisting of these wires significantly improves the conductor 1's flexibility and resistance to bending fatigue, making it suitable for applications involving frequent movement or bending. A circular cross-section facilitates a uniform electric field distribution, improving signal transmission stability. A polygonal cross-section helps increase the fill factor and overall structural compactness of the conductor 1, enhancing the wire's mechanical strength and spatial adaptability.

[0027] The conductive metal foil layer 301 of the inner shielding layer 3 is a single-sided conductive aluminum-plastic composite foil, with its conductive side facing the insulating layer 2. The use of a single-sided conductive aluminum-plastic composite foil ensures the conductive continuity of the shielding layer 3 while enhancing interlayer insulation and mechanical protection through the outward-facing plastic side. The conductive side is tightly attached to the outer surface of the insulating layer 2, ensuring reliable grounding and efficient high-frequency electromagnetic shielding, while avoiding the risk of short circuits between the shielding layer 3 and other structural layers.

[0028] The synthetic fiber bundle 401 is composed of para-aramid fiber bundles or ultra-high molecular weight polyethylene fiber bundles. Para-aramid fiber bundles offer extremely high tensile strength and heat resistance, making them suitable for high-temperature or high-strength tensile environments. Ultra-high molecular weight polyethylene fiber bundles provide excellent specific strength and abrasion resistance, reducing the weight of the wire while maintaining high tensile performance. Both para-aramid fiber bundles and ultra-high molecular weight polyethylene fiber bundles significantly improve the overall mechanical strength and durability of the wire.

[0029] The braided reinforcing layer 4 has a braiding angle of 55°-65° for its flexible fibers. When the angle is 55°, the wire maintains good flexibility while possessing high tensile and compressive strength. When the angle is 65°, the braided layer 402 has a tighter structure, achieving superior torsional and impact resistance, making it suitable for applications with more demanding mechanical stress.

[0030] The outer surface of the sheath 5 is provided with anti-slip textures 501 distributed at intervals along the axial direction. The anti-slip textures 501 increase the friction coefficient of the wire surface, making it easier to install, plug and unplug and fix, and preventing slippage or displacement during operation. At the same time, the texture spacing design takes into account the flexibility and wear resistance of the outer surface and does not affect the bending performance of the wire.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A connecting wire for electronic products, comprising, from the inside out, a conductor, an insulation layer, a shielding layer, a reinforcing layer, and a sheath, characterized in that: The shielding layer consists of an inner shielding layer and an outer shielding layer. The inner shielding layer is a layer of conductive metal foil wrapped around the outer shielding layer, and the outer shielding layer is a woven tin-plated metal wire mesh layer. The conductive surface of the inner shielding layer is tightly attached to the outer surface of the insulating layer. The reinforcing layer is composed of multiple strands of synthetic fiber bundles and a braided layer tightly wrapped around the synthetic fiber bundles. The synthetic fiber bundles extend along the wire axis and are evenly distributed around the periphery of the shielding layer. The braided reinforcing layer is made of flexible fiber material cross-woven together, with the axially extending synthetic fibers tightly embedded in the braided reinforcing layer. The sheath is extruded onto the outside of the reinforcing layer. The inner wall of the sheath fills the mesh gaps of the braided reinforcing layer and is tightly bonded to the internal reinforcing layer and shielding layer.

2. The connecting wire for electronic products according to claim 1, characterized in that: The conductor is made of multiple strands of fine metal wire twisted together, and its cross-section is circular or polygonal.

3. A connecting wire for electronic products according to claim 1, characterized in that: The conductive metal foil layer of the inner shielding layer is a single-sided conductive aluminum-plastic composite foil, with its conductive surface facing the insulating layer.

4. A connecting wire for electronic products according to any one of claims 1-3, characterized in that: The synthetic fiber bundle is composed of para-aramid fiber bundles or ultra-high molecular weight polyethylene fiber bundles.

5. A connecting wire for electronic products according to any one of claims 1-3, characterized in that: The braiding angle of the flexible fibers in the braided reinforcing layer is greater than 45°.

6. A connecting wire for electronic products according to claim 5, characterized in that: The braiding angle of the flexible fibers in the braided reinforcing layer is 55°-65°.

7. A connecting wire for electronic products according to any one of claims 1-3, characterized in that: The outer surface of the sheath is provided with anti-slip textures that are spaced apart along the axial direction.

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