Anti-twist reinforcing connection line

Abstract

The utility model discloses a kind of anti-torsion reinforcing connecting lines, including conductor core wire, inner insulating layer and outer sheath sequentially arranged from inside to outside, anti-torsion reinforcing layer is equipped between the inner insulating layer and outer sheath, the anti-torsion reinforcing layer includes at least one anti-tensile fiber bundle wound in spiral mode;In the technical scheme provided by the utility model, set spiral winding anti-tensile fiber bundle disperses torsional stress through spiral structure, to avoid conductor core wire directly bears shear force;Reverse spiral winding design is through the dynamic balance of left and right fiber bundle, further reduce torsional deformation, so that anti-torsion performance is more than 30% than traditional connecting line promotion.Flexible elastic glue fills and fills up fiber bundle gap, prevent long-term vibration caused structural looseness, and absorb external impact energy, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of connecting wire technology, specifically to a torsion-resistant reinforced connecting wire. Background Technology

[0002] In modern electronic devices and precision instruments, miniature interconnects serve as a crucial medium for energy and signal transmission between circuit modules. Their structural design and material properties directly impact system stability and lifespan. As electronic products evolve towards thinner, lighter, more integrated, and higher-frequency designs, higher demands are placed on the mechanical flexibility, electromagnetic compatibility, and signal integrity of miniature interconnects. However, current mainstream miniature interconnects still face several technical bottlenecks in practical applications:

[0003] First, in complex assembly environments or usage scenarios involving frequent plugging, unplugging, and bending, the internal conductors of small connecting cables, due to their small diameter, are prone to breakage or fatigue damage due to localized stress concentration, thus affecting the conductivity and long-term reliability of the circuit. Especially in mobile devices and wearable products, flexible cables need to withstand frequent deformation, and traditional structures struggle to balance flexibility and durability. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a torsion-resistant reinforced connecting wire to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anti-torsion reinforced connecting wire includes a conductor core wire, an inner insulation layer, and an outer sheath arranged sequentially from the inside to the outside. An anti-torsion reinforcement layer is provided between the inner insulation layer and the outer sheath. The anti-torsion reinforcement layer includes at least one tensile fiber bundle wound in a spiral manner.

[0007] Optionally, the tensile fiber bundle is composed of one or more of aramid fiber bundles, glass fiber bundles, or ultra-high molecular weight polyethylene fiber bundles.

[0008] Optionally, the anti-torsion reinforcing layer includes multiple tensile fiber bundles, of which at least one is wound in a left-hand spiral and at least the other is wound in a right-hand spiral, with the two fiber bundles wound in opposite directions.

[0009] Optionally, the left-hand spiral winding and the right-hand spiral winding of the tensile fiber bundle have the same winding pitch.

[0010] Optionally, a braided shielding layer is provided between the anti-torsion reinforcing layer and the inner insulation layer, the braided shielding layer being woven from metal wires or metal-plated polymer fibers;

[0011] The metal wires of the braided shielding layer are tin-plated copper wires.

[0012] Optionally, the gaps between the fiber bundles in the anti-torsion reinforcement layer are filled with flexible elastic adhesive.

[0013] Optionally, the outer sheath is made of thermoplastic polyurethane elastomer rubber or polyamide material.

[0014] Compared with the prior art, this utility model provides a torsion-resistant reinforced connecting wire with the following characteristics:

[0015] Beneficial effects:

[0016] 1. This utility model features a spirally wound tensile fiber bundle that disperses torsional stress through its spiral structure, preventing the conductor core from directly bearing shear force. The reverse spiral winding design further reduces torsional deformation through the dynamic balance of left-hand and right-hand fiber bundles, resulting in a torsional resistance performance that is more than 30% higher than traditional connecting wires. Flexible elastic adhesive fills the gaps between the fiber bundles, preventing structural loosening caused by long-term vibration and absorbing external impact energy, thus extending service life.

[0017] 2. This utility model provides efficient electromagnetic shielding by using tin-plated copper wire for the braided shielding layer, and also enhances the overall structural strength through the tensile strength of the metal wire; combining the advantages of aramid, glass fiber and ultra-high molecular weight polyethylene, it achieves a balance between lightweight and high strength. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the anti-torsion reinforcing layer and flexible elastic adhesive of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the woven shielding layer of this utility model.

[0022] In the diagram: 1. Conductor core wire; 2. Inner insulation layer; 3. Anti-torsion reinforcement layer; 4. Braided shielding layer; 5. Outer sheath; 6. Flexible elastic adhesive. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 -4. In this embodiment: A torsion-resistant reinforced connecting wire includes a conductor core wire 1, an inner insulation layer 2, and an outer sheath 5 arranged sequentially from the inside to the outside. An anti-torsion reinforcement layer 3 is provided between the inner insulation layer 2 and the outer sheath 5. The anti-torsion reinforcement layer 3 includes at least one strand of tensile fiber bundle wound in a spiral manner. The connecting wire includes a conductor core wire 1, an inner insulation layer 2, and an outer sheath 5 arranged sequentially from the inside to the outside. An anti-torsion reinforcement layer 3 is provided between the inner insulation layer 2 and the outer sheath 5, and the anti-torsion reinforcement layer 3 includes at least one strand of tensile fiber bundle wound in a spiral manner. The tensile fiber bundle is wound in a spiral manner, forming a mechanical structural constraint. When an external force is applied to the connecting wire, the spiral structure of the fiber bundle can effectively disperse torsional stress, preventing the conductor core wire 1 from breaking or deforming due to torsion. The anti-torsion reinforcement layer 3 is located between the inner insulation layer 2 and the outer sheath 5, and the layered design avoids the stress concentration problem caused by material performance differences in traditional single-layer structures.

[0027] In some alternative embodiments, the tensile fiber bundle is composed of one or more of aramid fiber bundles, glass fiber bundles, or ultra-high molecular weight polyethylene fiber bundles.

[0028] Aramid fibers (such as Kevlar) possess ultra-high tensile strength, glass fibers are heat-resistant and exhibit excellent rigidity, while ultra-high molecular weight polyethylene fibers combine low density with high abrasion resistance. Composite use can balance mechanical properties and weight requirements. All of these fibers have high resistance to chemical corrosion (such as in acidic and alkaline environments), making them suitable for connecting wire applications under complex working conditions.

[0029] In some optional embodiments, the anti-torsion reinforcing layer 3 includes multiple tensile fiber bundles, of which at least one is wound in a left-hand spiral and at least another is wound in a right-hand spiral, with the two fiber bundles wound in opposite directions.

[0030] The left-hand and right-hand spirally wound fiber bundles cancel each other out their torsional tendencies when subjected to force, forming a dynamic balance and significantly reducing the overall torsional deformation of the connector. The reverse winding design avoids localized stress concentration caused by unidirectional winding, extending the service life of the connector.

[0031] In some alternative embodiments, the left-hand spiral winding and the right-hand spiral winding of the tensile fiber bundles have the same winding pitch.

[0032] A consistent pitch ensures that the two fiber bundles deform synchronously under stress, preventing slippage or failure between fiber bundles due to pitch differences. A uniform pitch also reduces the difficulty of adjusting winding equipment during production and improves production efficiency.

[0033] In some optional embodiments, a braided shielding layer 4 is further provided between the anti-torsion reinforcing layer 3 and the inner insulation layer 2, the braided shielding layer 4 being woven from metal wires or metal-plated polymer fibers;

[0034] In some optional embodiments, the metal wires of the braided shielding layer 4 are tin-plated copper wires.

[0035] A braided shielding layer 4 is provided between the anti-torsion reinforcing layer 3 and the inner insulation layer 2. The braided shielding layer 4 is made of metal wire or metal-plated polymer fiber; the metal wire is tin-plated copper wire. The braided shielding layer 4 can effectively suppress the interference of external electromagnetic fields on the conductor core wire 1 through the electromagnetic induction effect of the metal wire, ensuring the stability of signal transmission. The high conductivity and tensile strength of the tin-plated copper wire further enhance the overall mechanical strength of the connecting wire, while the tin plating layer can delay the oxidation and corrosion of the metal wire.

[0036] In some alternative embodiments, the fiber bundle gaps of the anti-torsion reinforcement layer 3 are filled with flexible elastic adhesive 6.

[0037] Flexible elastic adhesive 6 fills the gaps between fiber bundles, preventing them from loosening due to vibration or bending during long-term use and maintaining the integrity of the torsional reinforcement layer 3. Flexible elastic adhesive 6 can absorb external impact energy, reducing fatigue damage to the connecting wires during frequent bending or torsion, and improving durability.

[0038] In some alternative embodiments, the outer sheath 5 is made of thermoplastic polyurethane elastomer rubber or polyamide material.

[0039] Thermoplastic polyurethane elastomer rubber offers excellent abrasion resistance and elasticity, meeting the demands of high-frequency bending; polyamide materials (such as nylon) provide higher tear strength. Both materials exhibit good weather resistance (such as UV resistance and low-temperature resistance), making them suitable for wiring applications in outdoor or extreme temperature environments.

[0040] The working principle and usage process of this utility model are as follows: First, the conductor core wire 1 is used as the core part for signal or power transmission. Its exterior is electrically isolated from the external environment through the inner insulation layer 2 to prevent short circuits or leakage. An anti-torsion reinforcing layer 3 is provided between the inner insulation layer 2 and the outer sheath 5. This layer consists of at least one strand of tensile fiber wound in a spiral manner. The fiber bundle can be one or more composite materials selected from aramid fiber, glass fiber, or ultra-high molecular weight polyethylene fiber to ensure high strength and fatigue resistance even under frequent torsion or bending. When the connecting wire is subjected to external force, the fiber bundle in the anti-torsion reinforcing layer 3 disperses the torsional stress through the spiral winding structure, preventing the conductor core wire 1 from breaking due to excessive deformation. If a reverse design of left-hand and right-hand spiral winding is further adopted, the opposite winding directions of the two fiber bundles can dynamically balance the torsional trend, significantly reducing the overall deformation of the connecting wire. To enhance structural stability, flexible elastic adhesive 6 is filled into the gaps between the fiber bundles in the anti-torsion reinforcing layer 3. This flexible elastic adhesive 6 can not only fill the gaps between the fiber bundles and prevent the fiber bundles from loosening due to vibration during long-term use, but also absorb external impact energy and extend the life of the connecting wire.

[0041] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A torsion-resistant reinforced connecting wire, comprising a conductor core (1), an inner insulation layer (2), and an outer sheath (5) arranged sequentially from the inside to the outside, characterized in that: An anti-torsion reinforcing layer (3) is provided between the inner insulation layer (2) and the outer sheath (5). The anti-torsion reinforcing layer (3) includes multiple tensile fiber bundles, of which at least one is wound in a left-hand spiral and at least the other is wound in a right-hand spiral. The two fiber bundles are wound in opposite directions. The winding pitch of the left-hand spiral winding and the right-hand spiral winding tensile fiber bundles are the same; Flexible elastic adhesive (6) is filled in the gaps between the fiber bundles of the anti-torsion reinforcing layer (3).

2. The anti-torsion reinforced connecting wire according to claim 1, characterized in that: The tensile fiber bundle is composed of one or more of aramid fiber bundles, glass fiber bundles, or ultra-high molecular weight polyethylene fiber bundles.

3. The anti-torsion reinforced connecting wire according to claim 1, characterized in that: A braided shielding layer (4) is provided between the anti-torsion reinforcing layer (3) and the inner insulation layer (2). The braided shielding layer (4) is made of metal wire or metal-plated polymer fiber. The metal wire of the braided shielding layer (4) is tin-plated copper wire.

4. The anti-torsion reinforced connecting wire according to claim 1, characterized in that: The outer sheath (5) is made of thermoplastic polyurethane elastomer rubber or polyamide material.

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