A high strength cable

Abstract

The utility model discloses a high strength cable belongs to cable technical field, including conductor core, insulating layer, composite shielding layer, filling layer, reinforcing layer and outer sheath, the composite shielding layer includes inner layer metal foil and outer layer metal braid, and the composite shielding layer is through the combination of inner layer copper foil and outer layer tinned copper wire braid, provides excellent electromagnetic interference and radio frequency interference, and the outer layer metal braid adopts square weaving, 85% coverage and 45 degree weaving angle, makes the cable can effectively reduce the noise interference in signal transmission process, guarantees signal quality stability, and the utility model through the composite structure of high modulus fiber bundle and aramid braid cover of reinforcing layer, this structure can effectively prevent the cable from breaking or deforming in the outer layer metal braid of cable and setting the drainage wire, can effectively reduce the contact resistance, and through copper crimping cover or soldering tin is grounded, guarantees the electrical safety and long -term stability of cable.

Description

Technical Field

[0001] This utility model discloses a cable technology, and in particular relates to a high-strength cable. Background Technology

[0002] In high-dynamic mechanical, electrical, shipbuilding, and robotic systems, cables must not only possess stable electrical performance but also withstand repeated bending, dragging, and impacts. Traditional cable shielding layers often employ a single-layer copper braided structure, resulting in low coverage and insufficient high-frequency electromagnetic shielding. Their reinforcing layers are typically made of steel wire or nylon, which are heavy, lack flexibility, and are prone to sheath fatigue or breakage with prolonged use. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a high-strength cable to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-strength cable, comprising: a conductor core, an insulation layer, a composite shielding layer, a filling layer, a reinforcing layer, and an outer sheath; the composite shielding layer comprises an inner metal foil layer and an outer metal braided layer;

[0005] The inner metal foil is copper foil, and the outer metal braided layer is tin-plated copper wire braided with a coverage of 85% and a braiding angle of 45°. The outer metal braided layer adopts a square braiding structure, with multiple sets of tin-plated copper wires interlaced and arranged to form a mesh that is approximately square.

[0006] The reinforcing layer adopts a composite structure of longitudinally parallel high-modulus fiber bundles and an outer aramid braided sheath: multiple high-modulus fiber bundles are arranged parallel to the cable axis, and the aramid braided sheath is diamond braided, with the aramid fibers interlacing to form a rhomboid mesh, and the braiding angle is 45°.

[0007] Preferably, the structure of the reinforcing layer can be replaced with a diagonal aramid layer, and the aramid tape is alternately wound at an angle of ±45°.

[0008] Preferably, the aramid braided sleeve and aramid tape of the reinforcing layer are woven using an alternating combination of forward and reverse winding.

[0009] Preferably, at least one drain line is placed in parallel in the outer metal braided layer, and low contact resistance grounding is achieved at the end through a copper crimp sleeve or solder.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The composite shielding layer provides excellent electromagnetic interference and radio frequency interference protection through the combination of an inner copper foil layer and an outer tin-plated copper wire braided layer. The outer metal braided layer adopts a square braid, 85% coverage, and a 45° braiding angle, which enables the cable to effectively reduce noise interference during signal transmission and ensure stable signal quality.

[0012] The reinforcing layer employs a composite structure of high-modulus fiber bundles and aramid braided sheath, which enhances the cable's tensile and compressive strength. This structure effectively prevents the cable from breaking or deforming due to external forces.

[0013] Incorporating drainage lines within the outer metal braided layer of the cable effectively reduces contact resistance, and grounding via copper crimp sleeves or solder ensures the cable's electrical safety and long-term stability. Replaceable reinforcing layer structures, such as oblique-ply aramid layers, allow for flexible adjustments to the cable's physical properties and adaptability to different application scenarios, enhancing its suitability for special environments. This flexibility makes the cable suitable for a variety of complex working conditions, expanding its application range. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-strength cable.

[0015] Reference numerals: 1. Conductor core; 2. Insulating layer; 3. Inner metal foil; 4. Outer metal braided layer; 5. Aramid braided sheath; 6. High modulus fiber bundle; 7. Outer sheath. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present 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. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] A high-strength cable, such as Figure 1 As shown, it includes a conductor core 1, an insulating layer 2, a composite shielding layer, a filling layer, a reinforcing layer, and an outer sheath 7.

[0018] The cable's layer structure is as follows:

[0019] Conductor core 1: Highly conductive copper wire is used as the conductor to ensure stable and efficient current transmission.

[0020] Insulation layer 2: Cross-linked polyethylene material is used to cover the conductor core 1, providing good electrical insulation performance. The thickness of insulation layer 2 is set according to the rated voltage requirements of the cable to ensure that the cable will not experience electric shock or short circuit during use.

[0021] Composite shielding layer: This layer includes an inner metal foil 3 and an outer metal braided layer 4.

[0022] Inner metal foil 3: Copper foil material is used to improve the shielding performance of the cable and prevent electromagnetic interference and radio frequency interference.

[0023] Outer metal braided layer 4: Made of tin-plated copper wire, with a braiding angle of 45° and a coverage of 85%. The braiding structure is square, with multiple tin-plated copper wires interlaced to form a grid-like mesh structure, thereby effectively enhancing the shielding effect and reducing electromagnetic interference.

[0024] The outer metal braided layer 4 provides enhanced anti-interference capabilities, making it suitable for high-frequency signal transmission applications. The filler layer is made of high-density polyethylene material, ensuring the overall mechanical strength of the cable, preventing structural damage during bending, and improving the cable's shape stability.

[0025] Reinforcing layer: This layer adopts a composite structure of longitudinally parallel high-modulus fiber bundles 6 and an outer aramid braided sheath 5. High-modulus fiber bundles 6: Multiple bundles of high-modulus fibers are arranged parallel to the cable axis to enhance the tensile strength of the cable.

[0026] Aramid Braided Sleeve 5: The aramid braided sleeve 5 adopts a diamond braid structure with a braid angle of 45°. The aramid fibers are interwoven to form a diamond mesh, providing an additional mechanical protective layer to prevent external physical damage. Aramid material has excellent heat resistance and tensile strength, effectively protecting the cable from damage in extreme environments.

[0027] In some applications, the reinforcing layer can be replaced with a cross-ribbed aramid layer, where the aramid tapes are alternately wound at ±45° angles to enhance the cable's tensile strength, making it particularly suitable for special environments requiring high tensile strength.

[0028] Outer sheath 7: Made of weather-resistant polyvinyl chloride material, the outer sheath 7 is thick enough to provide waterproof, fireproof and corrosion-resistant protection, ensuring that the cable can operate stably for a long time in harsh environments.

[0029] Drainage line and grounding: At least one drainage line is placed in parallel in the outer metal braid layer 4 to provide an effective current return path.

[0030] The cable ends are connected to the drain line via copper crimp sleeves or soldering to ensure low contact resistance for grounding, thereby improving electrical safety and protection.

[0031] In the design of the reinforcing layer, a diagonally interlaced aramid layer is used to replace the composite structure of high-modulus fiber bundle 6 and aramid braided sleeve 5. The aramid tape is wound alternately at ±45° angles, and during the weaving process, the aramid tape is woven using an alternating combination of forward and reverse winding, which further enhances the tensile strength and abrasion resistance of the cable.

[0032] Through this structural improvement, the cable can better withstand loads when subjected to higher tensile forces or external mechanical impacts, extending its service life and making it more suitable for applications requiring extremely high strength and toughness.

[0033] 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.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-strength cable, characterized in that, include: Conductor core (1), insulation layer (2), composite shielding layer, filling layer, reinforcing layer and outer sheath (7); the composite shielding layer includes an inner metal foil (3) and an outer metal braided layer (4); The inner metal foil (3) is copper foil, and the outer metal braided layer (4) is tin-plated copper wire braided with a coverage rate of 85% and a braiding angle of 45°. The braiding structure of the outer metal braided layer (4) adopts square braiding, and multiple sets of tin-plated copper wires are arranged in an interlaced manner, and the mesh formed is approximately square. The structure of the reinforcing layer adopts a composite structure of longitudinally parallel high modulus fiber bundles (6) and an outer aramid braided sleeve (5): multiple high modulus fiber bundles (6) are arranged parallel to the cable axis, and the aramid braided sleeve (5) is diamond braided, with aramid fibers interlacing to form a rhomboid mesh, and the braiding angle is 45°.

2. The high-strength cable according to claim 1, characterized in that, The structure of the reinforcing layer can be replaced with a diagonal aramid layer, and the aramid tape is alternately wound at an angle of ±45°.

3. The high-strength cable according to claim 1 or 2, characterized in that, The aramid braided sleeve (5) of the reinforcing layer and the aramid strip are woven by alternating combination of forward and reverse winding.

4. The high-strength cable according to claim 1 or 2, characterized in that, At least one drain line is placed in the outer metal braided layer (4) and grounded with low contact resistance at the end by a copper crimp sleeve or solder.

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