A high-temperature resistant aluminum core conductor

Abstract

This utility model discloses a high-temperature resistant aluminum core conductor, including a protective structure. An outer sheath is installed inside the protective structure, and a high-temperature resistant structure is installed inside the outer sheath. The high-temperature resistant structure includes an insulating layer inside the outer sheath, an anti-tensile rope inside the insulating layer, a main body installed on one side of the anti-tensile rope, a heat-resistant aluminum alloy round wire installed on the outside of the main body, a steel core installed in the middle of the main body, and an annealed aluminum strip on the outer wall of the steel core. When the heat-resistant aluminum alloy round wire is wrapped around the main body, the heat-resistant aluminum alloy round wire has excellent heat resistance, forming a heat-resistant protective layer that effectively blocks the direct impact of external high temperatures on the aluminum main body. This helps maintain the stability and reliability of the main body in high-temperature environments, extending its service life. The anti-tensile rope outside the main body can absorb and disperse stress, preventing conductor damage or breakage.

Description

Technical Field

[0001] This utility model relates to the field of high-strength heat-resistant aluminum alloy technology, and in particular to a high-temperature resistant aluminum core conductor. Background Technology

[0002] Traditional steel-cored aluminum stranded wires exhibit significant performance degradation at high temperatures, resulting in limited power transmission capacity. High-temperature resistant aluminum core conductors, through the addition of alloying elements such as zirconium, significantly enhance the heat resistance of aluminum, becoming a key technology for solving the power transmission capacity bottleneck in high-temperature environments. At high temperatures, aluminum rapidly forms a dense alumina film, preventing further oxidation. The high-temperature resistant aluminum core accelerates the formation of the alumina film and improves its adhesion through optimized alloy composition. The aluminum core conductor employs a multi-strand stranded structure and an anti-loosening design to avoid poor contact or wire breakage caused by vibration.

[0003] To this end, Chinese patent application number CN204066770U discloses a high-conductivity aluminum stranded cable with an aluminum alloy core. From the inside out, the cable comprises a cable core, a metal-plastic composite layer, a shielding layer, a high-temperature resistant layer, and a sheath layer. The cable core contains an aluminum alloy core made of stranded aluminum alloy wires, an aluminum conductor layer covering the aluminum alloy core, and an insulation layer covering the conductor layer. The high-conductivity aluminum stranded cable with an aluminum alloy core proposed in this utility model is simple to manufacture, has good conductivity, and overcomes the problems of heavy cables and poor safety performance in existing technologies.

[0004] The aforementioned aluminum alloy core high conductivity aluminum stranded cable, through the adoption of a circular multi-hole design, makes the cover plate lighter and stronger. When installed on the aluminum alloy core high conductivity aluminum stranded cable proposed in this invention, it is simple to manufacture, has good conductivity, and overcomes the problems of large cable weight and poor safety performance in the prior art. However, the aluminum in this device is prone to oxidation at high temperatures, forming an oxide layer. Oxidation not only increases the conductor resistance but may also further reduce conductivity. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature resistant aluminum core conductor to address the shortcomings of existing aluminum core conductors in terms of heat resistance.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-temperature resistant aluminum core conductor, including a protective structure;

[0007] The protective structure is equipped with an outer sheath inside, and the outer sheath is equipped with a high-temperature resistant structure inside.

[0008] The high-temperature resistant structure includes an insulating layer disposed inside the outer sheath, an anti-tensile rope disposed inside the insulating layer, a main body mounted on one side of the anti-tensile rope, and a heat-resistant aluminum alloy round wire mounted on the outside of the main body.

[0009] A steel core is installed at the middle position of the main body, and an annealed aluminum strip is provided on the outer wall of the steel core.

[0010] The heat-resistant aluminum alloy round wire has excellent heat resistance and can maintain a stable shape and size at high temperatures. When the heat-resistant aluminum alloy round wire is wrapped around the main body, it can form a heat-resistant protective layer, effectively blocking the direct impact of external high temperature on the aluminum body.

[0011] Furthermore, the insulating layer is cross-linked polyethylene to prevent current leakage.

[0012] Furthermore, the tensile ropes are provided in multiple sets, and the tensile ropes are arranged at equal intervals inside the insulation layer to enhance tensile strength.

[0013] Furthermore, the outer sheath is made of silicone rubber, and the surface of the outer sheath is coated with epoxy resin adhesive to facilitate bonding.

[0014] Furthermore, the protective structure includes a wear-resistant layer disposed on the outside of the outer sheath, a first wire mesh disposed on one side of the outer wall of the wear-resistant layer, a second wire mesh disposed on the other side of the outer wall of the wear-resistant layer, and an epoxy resin adhesive disposed inside the wear-resistant layer to improve the bonding strength between the outer sheath and the epoxy resin adhesive.

[0015] Furthermore, the second wire mesh and the first wire mesh intersect each other, forming a mesh structure that enhances resistance to compression.

[0016] Furthermore, the adhesive layer is an epoxy resin adhesive, the wear-resistant layer is polytetrafluoroethylene, and the first and second wire meshes interweave to form a woven armor layer.

[0017] Extend service life.

[0018] The present invention provides a high-temperature resistant aluminum core conductor, which has the following advantages: the high-temperature resistant structure can enhance the high-temperature resistance of the aluminum core conductor, making it more effective, and the protective structure can protect the internal structure of the aluminum core conductor.

[0019] By incorporating heat-resistant aluminum alloy round wire, tensile rope, and insulation layer, the heat-resistant aluminum alloy round wire exhibits excellent heat resistance. When wrapped around the main body, the heat-resistant aluminum alloy round wire forms a heat-resistant protective layer, effectively blocking the direct impact of external high temperatures on the main body. Furthermore, the tensile rope outside the heat-resistant aluminum alloy round wire absorbs and disperses stress, preventing conductor damage or breakage, thereby extending the conductor's service life.

[0020] Through the design of the protective structure, when the aluminum core conductor is bent or stretched by external force, the adhesive layer can disperse the stress, reduce the relative displacement between the outer sheath and the aluminum core, and prevent the sheath from cracking or peeling. The steel wire mesh and the second steel wire mesh intersect to form a steel wire braided layer that can withstand the tensile force and prevent the conductor from breaking due to stretching. Attached Figure Description

[0021] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the high-temperature resistant structure of this utility model;

[0024] Figure 4 For the present utility model Figure 3 Enlarged cross-sectional view of a portion of point A in the middle section;

[0025] Figure 5 For the present utility model Figure 3 Enlarged cross-sectional view of section B in the middle section;

[0026] Figure 6 This is a three-dimensional structural diagram of the protective structure of this utility model.

[0027] The following are the annotations in the figure: 1. Protective structure; 101. Wear-resistant layer; 102. First wire mesh; 103. Second wire mesh; 104. Adhesive layer; 2. Outer sheath; 3. High-temperature resistant structure; 301. Insulation layer; 302. Tension rope; 303. Heat-resistant aluminum alloy round wire; 304. Main body; 305. Steel core; 306. Annealed aluminum strip. 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] Please see Figures 1-5 As shown, one embodiment of this utility model is provided: a high-temperature resistant aluminum core conductor, including a protective structure 1;

[0030] The protective structure 1 has an outer sheath 2 installed inside. The outer sheath 2 is made of silicone rubber and the surface of the outer sheath 2 is coated with epoxy resin adhesive.

[0031] The protective structure 1 includes a wear-resistant layer 101 disposed outside the outer sheath 2. A first wire mesh 102 is disposed on one side of the outer wall of the wear-resistant layer 101, and a second wire mesh 103 is disposed on the other side of the outer wall of the wear-resistant layer 101.

[0032] The second wire mesh 103 and the first wire mesh 102 intersect each other, and the second wire mesh 103 and the first wire mesh 102 form a mesh structure. The adhesive layer 104 is an epoxy resin adhesive, and the wear-resistant layer 101 is polytetrafluoroethylene. The wear-resistant layer 101 has an adhesive layer 104 inside.

[0033] Please see Figures 1-3 and Figure 6 As shown, the adhesive layer 104 is an epoxy resin adhesive. As a transition layer between the outer sheath 2 and the wear-resistant layer 101, the adhesive layer 104 fills the unevenness of the microscopic surfaces of both, forming a strong adhesive layer to prevent the outer sheath 2 from falling off during bending, vibration, or thermal expansion and contraction. The adhesive layer 104 has excellent high-temperature resistance to prevent adhesive layer failure due to temperature cycling. The adhesive layer 104 also has good resistance to environmental factors such as ultraviolet radiation. The wear-resistant layer 101 is made of polytetrafluoroethylene (PTFE). It can extend the life of the cable in dynamic use, prevent the main body 304 from being exposed due to damage to the outer sheath 2, and the wear-resistant layer 101 can withstand external friction, scratching or impact, protect the inner structure from physical damage, and extend the service life of the conductor. The first wire mesh 102 and the second wire mesh 103 are made of steel wire and can resist external mechanical crushing or rodent biting after they are intersected. Together with the tensile rope 302 inside the outer sheath 2, they form a double protection, which can disperse local impact force and prevent the conductor from being flattened or broken.

[0034] The outer sheath 2 has a high-temperature resistant structure 3 installed inside. The high-temperature resistant structure 3 includes an insulation layer 301 disposed inside the outer sheath 2. The insulation layer 301 is cross-linked polyethylene. The insulation layer 301 wraps the tensile rope 302. The tensile rope 302 is disposed inside the insulation layer 301. The insulation layer 301 is disposed outside the tensile rope 302.

[0035] Multiple sets of tensile ropes 302 are provided. The tensile ropes 302 are arranged at equal intervals inside the insulation layer 301. A main body 304 is installed on one side of the tensile rope 302. A heat-resistant aluminum alloy round wire 303 is installed on the outside of the main body 304. A steel core 305 is installed in the middle of the main body 304. An annealed aluminum strip 306 is provided on the outer wall of the steel core 305.

[0036] Please see Figures 1-6As shown, the steel core 305 provides mechanical support as the core load-bearing structure of the main body 304. Its high strength characteristics allow it to withstand the conductor's own weight and external mechanical stress, ensuring the conductor maintains a stable shape during long-term operation. The annealed aluminum strip 306 is easy to bend and wind, facilitating its integration with the steel core 305 and other layers, while reducing stress concentration caused by vibration or bending during operation. The heat-resistant aluminum alloy round wire 303 possesses excellent heat resistance, maintaining a stable shape and size at high temperatures. When the heat-resistant aluminum alloy round wire 303 is wrapped around the main body 304, it forms a heat-resistant protective layer, effectively blocking the direct impact of external high temperatures on the aluminum main body 304. It helps maintain the stability and reliability of the main body 304 in high-temperature environments and extends its service life. When the main body 304 is subjected to external impact or compression, the tensile rope 302 can absorb and disperse stress. The tensile rope 302 is made of aramid fiber, which prevents the conductor from being damaged or broken, thereby extending the service life of the conductor. The tensile rope 302 has long-term thermal stability and excellent chemical corrosion resistance, and can maintain stable performance in high-temperature and harsh environments. In addition, the tensile rope 302 has an outer insulation layer 301. The insulation layer 301 is made of cross-linked polyethylene, which can maintain stable electrical performance in high-temperature environments, effectively isolate the conductor from the external environment, and prevent current leakage or short circuit.

[0037] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-temperature resistant aluminum core conductor, comprising a protective structure (1); Its features are: The protective structure (1) is equipped with an outer sheath (2), and the outer sheath (2) is equipped with a high-temperature resistant structure (3). The high-temperature resistant structure (3) includes an insulating layer (301) disposed inside the outer sheath (2), an anti-tensile rope (302) disposed inside the insulating layer (301), a main body (304) installed on one side of the anti-tensile rope (302), and a heat-resistant aluminum alloy round wire (303) installed on the outside of the main body (304). A steel core (305) is installed at the middle position of the main body (304), and an annealed aluminum strip (306) is provided on the outer side wall of the steel core (305).

2. A high temperature resistant aluminum conductor as defined in claim 1, wherein: The insulation layer (301) is cross-linked polyethylene, and the insulation layer (301) wraps the tensile rope (302).

3. The high temperature resistant aluminum conductor as claimed in claim 1, wherein: Multiple sets of the tensile ropes (302) are provided, and the tensile ropes (302) are arranged at equal intervals inside the insulation layer (301).

4. The high temperature resistant aluminum conductor as claimed in claim 1, wherein: The outer sheath (2) is made of silicone rubber, and the surface of the outer sheath (2) is coated with epoxy resin adhesive.

5. The high temperature resistant aluminum conductor as claimed in claim 1, wherein: The protective structure (1) includes a wear-resistant layer (101) disposed outside the outer sheath (2), a first wire mesh (102) is disposed on one side of the outer wall of the wear-resistant layer (101), a second wire mesh (103) is disposed on the other side of the outer wall of the wear-resistant layer (101), and an adhesive layer (104) is disposed inside the wear-resistant layer (101).

6. A high temperature resistant aluminum conductor as defined in claim 5, wherein: The second wire mesh (103) and the first wire mesh (102) intersect each other, and the second wire mesh (103) and the first wire mesh (102) form a mesh structure.

7. A high temperature resistant aluminum conductor as defined in claim 5, wherein: The adhesive layer (104) is an epoxy resin adhesive, the wear-resistant layer (101) is polytetrafluoroethylene, and (102) and (103) interweave to form a woven armor layer.

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