Energy-saving and environment-friendly copper-aluminum alloy cable

Abstract

This utility model provides an energy-saving and environmentally friendly copper-aluminum alloy cable, comprising a conductor and a sheath. The conductor uses a copper-aluminum alloy with a copper content of 43%–46%, which not only ensures excellent conductivity but also effectively reduces conductor weight, significantly improving mechanical strength and creep resistance, thereby enhancing long-term connection stability and durability. The sheath includes a shielding layer, a compression-resistant layer, a waterproof layer, a low-smoke halogen-free glass fiber flame-retardant layer, and an outer sheath layer, giving the cable excellent tensile, compressive, waterproof, and flame-retardant properties. It also significantly reduces smoke emissions and toxicity during fires, meeting environmental and safety requirements. Furthermore, the flame-retardant material filled within the shielding layer further enhances the overall flame-retardant effect, effectively delaying the spread of fire and preventing loosening between conductors to some extent. Therefore, this energy-saving and environmentally friendly copper-aluminum alloy cable possesses significant advantages in conductivity, strength, durability, and environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to an energy-saving and environmentally friendly copper-aluminum alloy cable. Background Technology

[0002] In modern cable technology, with the advancement of industrialization and increased environmental awareness, traditional cables have gradually revealed some problems. For example, while traditional pure copper conductor cables have excellent conductivity, their high density and weight lead to high transportation, installation, and usage costs. Furthermore, although pure aluminum conductors are lightweight, their conductivity is relatively poor, and their mechanical properties are weak, making them prone to unstable connections due to insufficient creep and ductility. At the same time, the sheathing materials of traditional cables often use highly polluting and high-smoke materials, which not only harm the environment but may also release toxic gases in emergencies such as fires, seriously threatening human safety.

[0003] Therefore, it is necessary to develop an energy-saving and environmentally friendly cable with an optimized copper-aluminum ratio, enhanced cable reliability, and flame-retardant, waterproof, and pressure-resistant properties. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an energy-saving and environmentally friendly copper-aluminum alloy cable, which solves the problem of the lack of performance of some cables in the existing technology.

[0005] An energy-saving and environmentally friendly copper-aluminum alloy cable includes a conductor and a sheath. The conductor includes an insulation layer, a metal wire shielding layer, an aluminum foil shielding layer, and a fireproof cotton layer arranged from the inside to the outside of the conductor. The conductor is made of several copper-aluminum alloy wire bundles twisted together, wherein the copper content in the copper-aluminum alloy is 43%-46%. The sheath is wrapped around the outside of the conductor and includes a shielding layer, a waterproof layer, a pressure-resistant layer, a low-smoke halogen-free glass fiber flame-retardant layer, and an outer sheath layer arranged from the inside to the outside. The shielding layer contains flame-retardant material.

[0006] Preferably, the proportion of copper in the copper-aluminum alloy is 44%.

[0007] Preferably, the flame-retardant material is internally fitted with a thin steel wire.

[0008] Preferably, the insulating layer is made by extrusion of highly flame-retardant polyvinyl chloride material.

[0009] Preferably, the shielding layer is an aluminum foil shielding layer.

[0010] Preferably, the pressure-resistant layer is environmentally friendly PVC soft rubber, and the environmentally friendly PVC soft rubber has a buffer cavity inside.

[0011] Preferably, the waterproof layer is an aluminum-plastic composite fully enclosed waterproof layer.

[0012] Preferably, the flame retardant material is a fluorophlogopite flame retardant material.

[0013] Preferably, a limiting member is provided at the center of the energy-saving and environmentally friendly copper-aluminum alloy cable. The limiting member has a regular polygonal structure, the number of sides of the limiting member is the same as the number of wire cores, and each side of the limiting member is recessed inward with a groove.

[0014] Furthermore, the limiting member is a flexible limiting member.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention provides an energy-saving and environmentally friendly copper-aluminum alloy cable, comprising a conductor and a sheath. The conductor uses a copper-aluminum alloy with a copper content of 43% to 46%, which not only ensures excellent conductivity but also effectively reduces conductor weight, significantly improving the cable's mechanical strength and creep resistance. This enhances the cable's long-term connection stability and durability. Furthermore, this proportion of copper-aluminum alloy provides good flexibility, overcoming the insufficient toughness of pure aluminum conductors and making it less prone to damage in complex installation environments. The conductor is surrounded by an insulation layer, a metal wire shielding layer, an aluminum foil shielding layer, and a fire-resistant cotton layer, forming a multi-layered protective structure. The fire-resistant cotton layer effectively improves the cable's flame-retardant performance and safety. The sheath includes a shielding layer, a waterproof layer, a pressure-resistant layer, a low-smoke halogen-free glass fiber flame-retardant layer, and an outer sheath layer, giving the cable excellent tensile, compressive, waterproof, and flame-retardant properties. It also significantly reduces smoke emissions and toxicity during a fire, meeting environmental and safety requirements. Furthermore, the flame-retardant material filled within the shielding layer further enhances the overall flame-retardant effect, effectively delaying the spread of fire and preventing the cores from loosening to some extent. Therefore, this energy-saving and environmentally friendly copper-aluminum alloy cable has significant advantages in conductivity, strength, durability, and environmental friendliness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the energy-saving and environmentally friendly copper-aluminum alloy cable described in this utility model;

[0018] in:

[0019] 10-Core wire, 20-Sheath, 30-Flame retardant material, 40-Limiting component, 11-Conductor, 12-Insulation layer, 13-Metal wire shielding layer, 14-Aluminum foil shielding layer, 15-Fireproof cotton layer, 21-Shielding layer, 22-Pressure-resistant layer, 23-Waterproof layer, 24-Low smoke halogen-free glass fiber flame retardant layer. Detailed Implementation

[0020] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] See Figure 1 This embodiment provides an energy-saving and environmentally friendly copper-aluminum alloy cable, comprising a core 10 and a sheath 20. The core 10 includes a conductor 11 and, from the inside out, an insulation layer 12, a metal wire shielding layer 13, an aluminum foil shielding layer 14, and a fireproof cotton layer 15 disposed on the outside of the conductor 11. The conductor 11 is formed by twisting together several copper-aluminum alloy wire bundles, wherein the copper content in the copper-aluminum alloy is 43%-46%. The sheath 20 is wrapped around the outside of the core 10 and includes, from the inside out, a shielding layer 21, a waterproof layer 22, a pressure-resistant layer 23, a low-smoke halogen-free glass fiber flame-retardant layer 24, and an outer sheath layer 25. The shielding layer 21 contains a flame-retardant material 30.

[0022] Preferably, the copper content in the copper-aluminum alloy is 44%. This ratio achieves an optimal balance between ensuring conductivity and lightweight materials. With a copper content of 44%, the conductivity of conductor 11 is close to that of pure copper, meeting the requirements for efficient current transmission while significantly reducing the overall weight of the cable, making installation and transportation more convenient. Compared to traditional pure copper conductor 11, the 44% copper copper-aluminum alloy conductor 11 exhibits better tensile strength and creep resistance, effectively preventing breakage or deformation during long-term operation and extending the cable's service life. Furthermore, this ratio of copper-aluminum alloy conductor 11 also possesses excellent corrosion resistance, maintaining stable performance in humid, corrosive gas, or other harsh environments. Simultaneously, the 44% copper copper-aluminum alloy conductor 11 not only demonstrates superior performance but also meets the high standards of modern cables in terms of environmental protection and safety.

[0023] Preferably, the flame-retardant material 30 is internally intercalated with fine steel wires, which further enhances the overall structural strength and tensile properties of the cable. Furthermore, the proper distribution of the fine steel wires within the flame-retardant material 30 not only does not affect the flame-retardant performance but also enhances the cable's shear and tear resistance, thereby improving the cable's durability in complex construction environments.

[0024] Preferably, the insulation layer 12 is extruded from a high flame-retardant polyvinyl chloride (PVC) material. High flame-retardant PVC material has excellent flame-retardant properties, which can quickly suppress the spread of flames when exposed to a fire source, thereby effectively reducing the safety hazards caused by cable fires. Simultaneously, this material also possesses excellent electrical insulation properties, providing stable electrical isolation in complex electrical environments and preventing leakage and short circuits. The insulation layer 12, produced through an extrusion process, has a dense and uniform structure, which improves the cable's resistance to mechanical impact and prevents damage to the insulation layer 12 due to external forces during transportation and installation. Furthermore, the high flame-retardant PVC material has strong weather resistance, resisting moisture, ultraviolet radiation, and chemical corrosion, thus ensuring stable performance of the cable during long-term use.

[0025] Preferably, the shielding layer 21 is an aluminum foil shielding layer 14. The aluminum foil shielding layer 14, with its high conductivity and excellent electromagnetic shielding effect, can effectively block the intrusion of external electromagnetic interference signals, while preventing the leakage of signals from inside the cable, ensuring the clarity and stability of signal transmission.

[0026] Preferably, the pressure-resistant layer 23 is made of environmentally friendly PVC soft rubber, which has a buffer cavity inside. Environmentally friendly PVC soft rubber not only has high flexibility and compressive strength, but also meets environmental protection requirements, avoiding the potential impact of harmful substances contained in traditional materials on the environment and users. The built-in buffer cavity can absorb and disperse pressure when the cable is subjected to external impact, effectively protecting the internal core 10 and other layers, and preventing cable deformation or damage due to external pressure. At the same time, the presence of the buffer cavity also gives the pressure-resistant layer 23 a certain elastic recovery characteristic, allowing it to return to its original shape after prolonged compression, extending the cable's service life.

[0027] Preferably, the waterproof layer 22 is a fully enclosed waterproof layer 22 made of aluminum-plastic composite tape. The fully enclosed waterproof layer 22 is composed of aluminum foil and a plastic layer, providing excellent waterproof and moisture-proof performance. The aluminum foil material effectively prevents water vapor penetration and has good oxidation resistance, ensuring the protective layer maintains stable performance in humid or harsh environments over a long period. The plastic layer gives the waterproof layer 22 flexibility, allowing it to fit tightly against the overall cable structure, while also providing sufficient mechanical strength to prevent damage to the cable from external forces.

[0028] Preferably, the outer sheath layer 25 is made of low-smoke halogen-free flame-retardant material. Low-smoke halogen-free flame-retardant material has excellent flame-retardant properties and can effectively suppress the spread of fire in a fire. Even during combustion, it does not produce toxic hydrogen halide gas and releases very little smoke, thus significantly reducing environmental pollution and harm to personnel during a fire. Furthermore, this material has excellent mechanical properties, good wear resistance, aging resistance, and UV resistance, maintaining stable physical and chemical properties during long-term use, providing excellent external protection for the cable.

[0029] Preferably, the flame-retardant material 30 is a fluorophlogopite tape flame-retardant material 30. The use of fluorophlogopite tape, with its excellent high-temperature resistance and fire resistance, effectively improves the flame-retardant rating of the cable. Even in high-temperature or fire environments, it can effectively inhibit the spread of flames and slow the expansion of fire. Furthermore, fluorophlogopite tape also has good electrical insulation properties, further enhancing the electrical safety of the cable. Therefore, using fluorophlogopite tape as the flame-retardant material 30 not only strengthens the structural stability and flame-retardant performance of the cable but also ensures the safe and reliable operation of the cable under extreme conditions.

[0030] Preferably, a limiting member 40 is provided at the center of the energy-saving and environmentally friendly copper-aluminum alloy cable. The limiting member 40 has a regular polygonal structure, and the number of its sides matches the number of wire cores 10. Each side of the limiting member 40 has an inwardly recessed groove, and the wire core 10 fits into the groove. The limiting member 40 ensures that the wire cores 10 inside the cable maintain a uniform arrangement and good fixation, thus avoiding loosening or misalignment of the wire cores 10 during use. The inwardly recessed grooves on the inner side of each side provide a stable fixed position for the wire cores 10, ensuring that unnecessary displacement or deformation of the wire cores 10 is reduced during cable use. This optimizes the structural stability of the cable. Furthermore, the limiting member 40 is a flexible limiting member 40.

[0031] This utility model provides an energy-saving and environmentally friendly copper-aluminum alloy cable, comprising a conductor 10 and a sheath 20. The conductor 10 uses a copper-aluminum alloy with a copper content of 43% to 46% as the conductor 11. This not only ensures excellent conductivity of the cable but also effectively reduces the weight of the conductor 11, significantly improving the cable's mechanical strength and creep resistance, thereby enhancing the cable's long-term connection stability and durability. Simultaneously, this proportion of copper-aluminum alloy possesses good flexibility, overcoming the problem of insufficient toughness in pure aluminum conductors 11, making it less prone to damage in complex laying environments. The insulation layer 12, metal wire shielding layer 13, aluminum foil shielding layer 14, and fireproof cotton layer 15 surrounding the conductor 11 form a multi-layered protective structure. The fireproof cotton layer 15 effectively improves the cable's flame-retardant performance and safety. The sheath 20 includes a shielding layer 21, a waterproof layer 22, a compression-resistant layer 23, a low-smoke halogen-free glass fiber flame-retardant layer 24, and an outer sheath layer 25, giving the cable excellent tensile, compressive, waterproof, flame-retardant, and abrasion-resistant properties. It also significantly reduces smoke emissions and toxicity during a fire, meeting environmental and safety requirements. Furthermore, the flame-retardant material 30 filling the shielding layer 21 further enhances the overall flame-retardant effect, effectively delaying the spread of fire and also preventing the cores 10 from loosening to some extent. Therefore, this energy-saving and environmentally friendly copper-aluminum alloy cable has significant advantages in conductivity, strength, durability, and environmental friendliness.

[0032] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An energy-saving and environmentally friendly copper-aluminum alloy cable, characterized in that: The device comprises a wire core and a sheath. The wire core includes a conductor and, from the inside out, an insulation layer, a metal wire shielding layer, an aluminum foil shielding layer, and a fireproof cotton layer disposed on the outside of the conductor. The conductor is made of several copper-aluminum alloy wire bundles twisted together, wherein copper accounts for 44% of the copper-aluminum alloy. The sheath is wrapped around the outside of the wire core and includes, from the inside out, a shielding layer, a waterproof layer, a pressure-resistant layer, a low-smoke halogen-free glass fiber flame-retardant layer, and an outer sheath layer disposed therefrom. The shielding layer contains flame-retardant material.

2. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The flame-retardant material is internally fitted with fine steel wires.

3. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The insulation layer is made of highly flame-retardant polyvinyl chloride material through extrusion.

4. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The shielding layer is an aluminum foil shielding layer.

5. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The pressure-resistant layer is made of environmentally friendly PVC soft rubber, and the environmentally friendly PVC soft rubber has a buffer cavity inside.

6. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The waterproof layer is a fully enclosed waterproof layer made of aluminum-plastic composite tape.

7. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, The flame-retardant material is a fluorophlogopite flame-retardant material.

8. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 1, characterized in that, A limiting member is provided at the center of the energy-saving and environmentally friendly copper-aluminum alloy cable. The limiting member has a regular polygonal structure, and the number of sides of the limiting member is the same as the number of wire cores. Each side of the limiting member is recessed inward and has a groove.

9. The energy-saving and environmentally friendly copper-aluminum alloy cable as described in claim 8, characterized in that, The limiting component is a flexible limiting component.

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