Aluminum alloy conductor cable for photovoltaic power generation

Abstract

The utility model discloses an aluminum alloy conductor cable for photovoltaic power generation, which belongs to the technical field of wires and cables, solves the problems of weak pressure resistance, poor flexibility, poor fire resistance and poor weather resistance in the prior art, and comprises an aluminum alloy conductor formed by twisting a plurality of aluminum alloy metal wires, and an insulating layer is sleeved outside the aluminum alloy conductor. A plurality of insulating layers are arranged on the base, compression-resistant and heat-resistant bodies are arranged among the plurality of insulating layers, a lining layer is sleeved outside the plurality of insulating layers, a double-steel-tape armor layer is sleeved outside the lining layer, and a sheath is sleeved outside the double-steel-tape armor layer. According to the utility model, the aluminum alloy conductors are formed by twisting a plurality of strands of fine and soft aluminum alloys, the cable has excellent conductivity and corrosion resistance and is suitable for a photovoltaic power generation system, the compression-resistant and heat-resistant bodies are arranged in the cable, the aluminum alloy conductors are effectively separated and supported by the supporting strips, electromagnetic interference between the adjacent aluminum alloy conductors is avoided, and the service life of the cable is prolonged. And the cavities of the partition parts are filled with flame-retardant particles, so that the problem of heat accumulation is effectively solved, and the flexibility and the pressure resistance of the cable are enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of wire and cable technology, and more specifically, it relates to a photovoltaic power generation cable with an aluminum alloy conductor. Background Technology

[0002] Faced with the gradual depletion of non-renewable energy and the increasingly severe global energy crisis, my country has increased investment and subsidies for the photovoltaic industry in recent years, leading to the rapid establishment of various photovoltaic power plants. Simultaneously, the photovoltaic cable industry, which supports these plants, has also rapidly emerged. However, although photovoltaic power generation is considered a future development trend, it is currently constrained by high investment costs and long payback periods. Currently, many properties of aluminum alloy cables have been greatly improved, even surpassing those of copper core cables in some aspects. With the continuous development of domestic aluminum alloy cable technology, it has replaced copper core cables in most fields, such as civil buildings, public facilities, and aerospace. Therefore, if aluminum alloy cables can be applied in the photovoltaic industry, it will significantly reduce the investment cost of photovoltaic power generation and bring huge economic benefits to the industry. During the development of photovoltaic power generation systems, higher requirements have been placed on the safety and durability of cables. However, existing aluminum alloy photovoltaic cables, due to their large outer diameter and large heat-receiving area, have poor overall fire resistance and weather resistance, and are prone to deformation under pressure changes. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an aluminum alloy conductor photovoltaic power generation cable that has strong compressive strength, good flexibility, and excellent fire resistance and weather resistance.

[0004] To achieve the above technical objectives, the technical solution adopted by this utility model for aluminum alloy conductor photovoltaic power generation cable is as follows:

[0005] A photovoltaic power generation cable with an aluminum alloy conductor includes an aluminum alloy conductor formed by stranding several aluminum alloy metal wires. An insulation layer is provided on the outside of the aluminum alloy conductor. A pressure-resistant and heat-resistant body is provided between the multiple insulation layers. The pressure-resistant and heat-resistant body includes a partition in the middle. The partition is made of silicone and has a cavity inside. The cavity is filled with several magnesium oxide flame-retardant particles. Multiple support strips are evenly distributed on the outer surface of the partition. An aluminum alloy conductor is provided between adjacent support strips. An inner lining layer is provided on the outside of the multiple insulation layers. The inner lining layer fills the space between the insulation layers and the pressure-resistant and heat-resistant body. A double steel tape armor layer is provided on the outside of the inner lining layer. A sheath is provided on the outside of the double steel tape armor layer.

[0006] Preferably, the insulating layer is made of silicone grease or high thermal conductivity silicone, and its thickness is 0.7 to 1.2 mm.

[0007] Preferably, the partition and the support strip are integrally formed, the partition has a circular or elliptical cross-section, and the support strip has a triangular cross-section.

[0008] Preferably, a gap is left between the inner lining layer and the upper part of the support strip.

[0009] Preferably, the sheath is made of polyvinyl chloride and has a thickness of 38-44 mm.

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

[0011] In this invention, the aluminum alloy conductor is made of multiple strands of fine, soft aluminum alloy, which has excellent conductivity and corrosion resistance, making it suitable for photovoltaic power generation systems. A pressure-resistant and heat-resistant body is incorporated into the cable, and support bars effectively separate and support the aluminum alloy conductors, preventing electromagnetic interference between adjacent conductors. The separation chamber is filled with flame-retardant particles, effectively solving the problem of heat accumulation. The pressure-resistant and heat-resistant body combines the separation section and support bars, enhancing the cable's flexibility and pressure resistance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] In the diagram: 1. Aluminum alloy conductor; 2. Insulation layer; 3. Separator; 4. Chamber; 5. Support bar; 6. Inner lining layer; 7. Double steel strip armor layer; 8. Sheath. Detailed Implementation

[0015] 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.

[0016] like Figure 1As shown in Figure 2, a photovoltaic power generation cable with an aluminum alloy conductor includes an aluminum alloy conductor 1 formed by stranding several aluminum alloy metal wires. The aluminum alloy conductor 1 is covered with an insulation layer 2. A pressure-resistant and heat-resistant body is provided between the multiple insulation layers 2. The pressure-resistant and heat-resistant body includes a partition 3 located in the middle. The partition 3 is made of silicone on the outside and has a cavity 4 inside. The cavity 4 is filled with several magnesium oxide flame-retardant particles. Multiple support strips 5 are evenly distributed on the outer surface of the partition 3. An aluminum alloy conductor 1 is provided between adjacent support strips 5. An inner lining layer 6 is covered with the multiple insulation layers 2. The inner lining layer 6 is filled between the insulation layer 2 and the pressure-resistant and heat-resistant body. A double steel tape armor layer 7 is covered with the inner lining layer 6. A sheath 8 is covered with the double steel tape armor layer 7.

[0017] The insulation layer 2 is made of silicone grease or high thermal conductivity silicone, with a thickness of 0.7–1.2 mm. The insulation layer 2 is made of a thermally conductive but non-conductive material, which can promote heat conduction while providing electrical insulation, ensuring electrical insulation throughout the entire aluminum alloy conductor. Furthermore, the insulation layer can quickly transfer heat to the periphery of the cable core, facilitating cable heat dissipation.

[0018] The separator 3 and the support bar 5 are integrally formed. The separator 3 has a circular or elliptical cross-section, and the support bar 5 has a triangular cross-section. When the cable is subjected to vertical or horizontal pressure, the separator 3 forms a central support to resist external pressure, and the support bar 5 supports the adjacent aluminum alloy conductors 1 with insulation layers 2, pushing the aluminum alloy conductors 1 away from each other to prevent the aluminum alloy conductors 1 from being compressed, thus forming an effective pressure resistance.

[0019] A gap is left between the inner lining layer 6 and the upper part of the support strip 5. By leaving a gap, the support strip 5 can have room for deformation after deformation, thus extending the service life of the support strip 5.

[0020] The sheath 8 is made of polyvinyl chloride (PVC) and has a thickness of 38–44 mm. The PVC sheath 8 provides the cable with excellent moisture resistance and corrosion resistance.

[0021] 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. An aluminum alloy conductor cable for photovoltaic power generation, comprising an aluminum alloy conductor formed by twisting a plurality of aluminum alloy wires, the aluminum alloy conductor being provided with an insulating layer on the outside thereof, characterized in that: A plurality of the insulation layers are provided with compression-resistant heat-resistant bodies, the compression-resistant heat-resistant bodies comprise a partition part provided at the middle part, the partition part is made of silica gel outside, and a cavity is provided inside, the cavity is filled with a plurality of magnesium oxide fireproof particles, and a plurality of support strips are uniformly distributed on the outer surface of the partition part, aluminum alloy conductors are provided between adjacent support strips, a lining layer is provided outside a plurality of the insulation layers, the lining layer is filled between the insulation layer and the compression-resistant heat-resistant body, a double-steel-belt armored layer is provided outside the lining layer, and a sheath is provided outside the double-steel-belt armored layer.

2. The aluminum alloy conductor photovoltaic power cable of claim 1, wherein: The insulation layer is made of silicone grease or high-thermal-conductivity silica gel, and the thickness is 0.7-1.2 mm.

3. The aluminum alloy conductor photovoltaic power cable of claim 1, wherein: The partition part and the support strip are integrally made, the partition part is circular or elliptical in cross section, and the support strip is triangular in cross section.

4. The aluminum alloy conductor photovoltaic power cable of claim 1, wherein: A gap is left between the lining layer and the upper part of the support strip.

5. The aluminum alloy conductor photovoltaic power cable of claim 1, wherein: The sheath is made of polyvinyl chloride, and the thickness is 38-44 mm.

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