Multi-core side-by-side aluminum alloy new energy photovoltaic cable

Abstract

The utility model discloses a multi-core side-by-side aluminum alloy new energy photovoltaic cable comprising a tensile element, a PVC isolation layer arranged outside the tensile element, a plurality of inner ring wire cores arranged outside the PVC isolation layer, an inner wrapping tape arranged outside the plurality of inner ring wire cores, and a tooth-shaped support frame arranged outside the inner wrapping tape. A plurality of spiral ribs forming spiral grooves are arranged outside the tooth-shaped supporting frame, outer ring wire cores are arranged in the spiral grooves, and an outer wrapping tape, an armor layer and an outer sheath are sequentially arranged outside the outer ring wire cores. According to the utility model, the tensile element is arranged, so that large axial tension can be borne, and the tensile element is not easy to damage; a steel tape armoring is adopted outside the cable, so that the cable can bear a relatively large radial load; the outer sheath of the cable is provided with the strip-shaped lug, and a plurality of cables can be connected through the buckle, so that the multi-core cable forms a whole, can bear larger external force, is convenient to lay, and is tidier in line.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, concretely relates to a multi -core side -by -side aluminum alloy new energy photovoltaic cable. BACKGROUND

[0002] At present, as one of the most important clean energy, photovoltaic power generation project, in recent years, the development scale expands unceasingly, the technology is progressing day by day, and the power generation cost also significantly reduces.

[0003] Common photovoltaic cable is single core form, and although single core photovoltaic cable is simple in structure, it is generally not used alone, and at least two single core photovoltaic cables are combined for use.With the continuous development of science and technology, people's demand for 2-core photovoltaic cables is increasing, and in the related technology, photovoltaic cables with "8" shape structure and 2-core side-by-side photovoltaic cables begin to appear.The photovoltaic cable has large external dimensions and heavy weight, which increases the laying difficulty and reduces the laying efficiency of the photovoltaic cable.The photovoltaic cable is inconvenient to manage after the number of wire cores increases, and the use environment of the photovoltaic cable is harsh, which not only has to bear a large amount of ultraviolet rays, but also has to bear tensile stress caused by wind and sand, or trampling of cattle and sheep on the grassland.The traditional photovoltaic cable is prone to problems such as conductor breakage or insulation damage.Therefore, it is necessary to provide a multi-core side-by-side aluminum alloy new energy photovoltaic cable to solve the above technical problems. SUMMARY

[0004] In view of the above shortcomings of the prior art, the utility model provides a multi -core side -by -side aluminum alloy new energy photovoltaic cable.

[0005] To achieve the above-mentioned purposes, the utility model adopts the technical scheme that: including the tensile element, the outside of tensile element is provided with PVC isolation layer, the outside of PVC isolation layer is provided with a plurality of inner circle wire core, a plurality of inner circle wire core is wound and is provided with inner wrapping tape outside, the outside of inner wrapping tape is provided with the toothed support frame, the outside of toothed support frame is provided with a plurality of helical spiral rib, the adjacent helical spiral rib forms the helical spiral groove, and the helical spiral groove is provided with outer circle wire core, a plurality of outer circle wire core is wound and is provided with outer wrapping tape outside, the outer wrapping tape is provided with the armor layer outside, and the armor layer is provided with the outer sheath outside.

[0006] Further, the inner circle wire core and the outer circle wire core are the same structure, and the inner circle wire core comprises a conductor and an insulation layer arranged outside the conductor.

[0007] Further, the insulation layer is cross-linked polyolefin.

[0008] Further, the conductor is made of aluminum or aluminum alloy.

[0009] Further, two symmetrical T-shaped protrusions are arranged on the outer sheath, and the T-shaped protrusions on adjacent outer sheaths are connected by a buckle strip.

[0010] Further, the T-shaped protrusion is provided with an outer clamping slope, and the clamping strip is provided with an inner clamping slope matched with the outer clamping slope.

[0011] Further, the inner wrapping belt and the outer wrapping belt are both PP belts.

[0012] Further, the tensile resistance element is a galvanized steel strand.

[0013] Further, the armor layer is a double steel belt armor layer.

[0014] Further, the outer sheath is made of cross-linked polyolefin.

[0015] The utility model discloses the beneficial effect that:

[0016] The utility model discloses the inner setting has tensile resistance element, can bear greater axial tension, make it more not easily be damaged, and the cable is built -in multiple inner circle line core and multiple outer circle line core, when needing load flow to be big, can parallel connection two even multiple insulated line core, thereby increasing load flow, and the cable outside adopts steel belt armor, can bear greater radial load, and the cable outer sheath has a ear with the shape, and through buckle can connect multiple cables, thereby making multiple cable form a whole, this can bear greater external force, and the line is more neat.

[0017] The utility model discloses an aluminum alloy photovoltaic cable is specially designed for a kind of cable of solar photovoltaic power generation system, it uses aluminum alloy as conductor material, compared with traditional copper cable, in specific application scene, it has shown unique advantage and characteristics.In cost benefit, for large-scale photovoltaic power station deployment, can significantly reduce initial investment cost.In light weight, it is convenient for transportation and installation, suitable for roof or other installation environment with limited load bearing.In corrosion resistance, aluminum alloy surface is easy to form dense oxide layer, enhances the service life of cable in outdoor harsh environment, especially salt fog, chemical corrosion and the like environment.In conductive performance, the conductive performance of aluminum alloy cable can be promoted, reaches or approaches the level of copper cable.In environmental protection, since the resource abundance of aluminum alloy and recycling rate is high, use aluminum alloy cable is more in line with the requirement of sustainable development, help to reduce the influence on environment. DRAWINGS

[0018] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0019] Figure 2 It is the cross section structure schematic diagram of the utility model in front direction;

[0020] Figure 3 It is the structure schematic diagram of clamping strip;

[0021] Figure 4 Structure diagram of T-shaped protrusion;

[0022] Figure 5 Working diagram of the utility model;

[0023] The symbols of the components are as follows:

[0024] 1, tensile element; 2, PVC isolation layer; 3, inner ring wire core; 4, inner wrapping tape; 5, tooth-shaped support frame; 51, spiral groove; 52, spiral rib; 6, outer ring wire core; 7, outer wrapping tape; 8, armored layer; 9, outer sheath; 91, T-shaped protrusion; 92, buckle outer inclined surface; 10, buckle strip; 101, buckle inner inclined surface. DETAILED DESCRIPTION

[0025] The specific embodiments of the utility model are described below to facilitate the understanding of the utility model by those skilled in the art, but it should be clear that the utility model is not limited to the scope of the specific embodiments, and for those skilled in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the appended claims, these changes are obvious, and all utility model creations utilizing the concept of the utility model are within the scope of protection.

[0026] As shown in Figure 1 and 2 , the multi-core side-by-side aluminum alloy new energy photovoltaic cable comprises a tensile element 1, which can withstand a large axial tension, so that it is less likely to be damaged. The tensile element 1 is preferably a galvanized steel wire, and the outside of the tensile element 1 is provided with a PVC isolation layer 2, which can effectively prevent the intrusion of moisture. The outside of the PVC isolation layer 2 is provided with a plurality of inner ring wire cores 3, and the outside of the plurality of inner ring wire cores 3 is wound with an inner wrapping tape 4, and the outside of the inner wrapping tape 4 is provided with a tooth-shaped support frame 5, and the outside of the tooth-shaped support frame 5 is provided with a plurality of spiral-shaped spiral ribs 52, and the spiral grooves 51 are formed between adjacent spiral ribs 52, and the spiral grooves 51 are provided with outer ring wire cores 6, and the outside of the plurality of outer ring wire cores 6 is wound with an outer wrapping tape 7, and the outer wrapping tape 7 is provided with an armored layer 8, which is preferably a double steel belt armored layer, which can withstand a large radial load. The outside of the armored layer 8 is provided with an outer sheath 9, which is preferably made of cross-linked polyolefin material. The inner wrapping tape 4 and the outer wrapping tape 7 are preferably PP tapes. A plurality of inner ring wire cores 3 and a plurality of outer ring wire cores 6 are built in the cable, and when the load current needs to be increased, two or even more insulated wire cores can be connected in parallel, thereby increasing the load current.

[0027] The inner ring wire core 3 and the outer ring wire core 6 have the same structure, the inner ring wire core 3 comprises a conductor and an insulation layer arranged outside the conductor, the conductor is preferably made of aluminum or aluminum alloy, and the insulation layer is preferably made of cross-linked polyolefin. Compared with traditional copper cables, the conductor using aluminum alloy as the conductor material has unique advantages and characteristics in specific application scenarios. In terms of cost-effectiveness, for large-scale photovoltaic power station deployment, the initial investment cost can be significantly reduced. In terms of light weight, it is convenient for transportation and installation, and is suitable for roof or other installation environments with limited load bearing. In terms of corrosion resistance, the aluminum alloy surface is easy to form a dense oxide layer, which enhances the service life of the cable in outdoor harsh environments, especially in salt spray, chemical corrosion and other environments. In terms of conductivity, the conductivity of the aluminum alloy cable can be improved to the level or close to that of the copper cable. In terms of environmental protection, due to the resource abundance and high recycling rate of aluminum alloy, the use of aluminum alloy cables is more in line with the requirements of sustainable development, and helps to reduce the impact on the environment.

[0028] As shown in Figure 3 , 4 and 5, the outer sheath 9 is provided with two symmetrical T-shaped protrusions 91, and the T-shaped protrusions 91 on adjacent outer sheaths 9 are connected by a buckle strip 10. The T-shaped protrusions 91 are provided with buckle outer inclined surfaces 92; the buckle strip 10 is in the shape of a U, and the buckle strip 10 is provided with buckle inner inclined surfaces 101 matched with the buckle outer inclined surfaces 92. When adjacent cables are connected, the T-shaped protrusions 91 on the outer sheaths 9 are clamped and fixed by the buckle strip 10, so that the adjacent cables are connected and fixed, and a plurality of cables form a whole, which can withstand greater external force and is convenient to lay and the line is more tidy.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A multi-core side-by-side aluminum alloy new energy photovoltaic cable, characterized in that, The utility model provides anti -tension element (1) including, the outside of anti -tension element (1) is provided with PVC isolation layer (2), the outside of PVC isolation layer (2) is provided with several inner ring wire core (3), several the outer winding of inner ring wire core (3) is provided with inner tape (4), the outside of inner tape (4) is provided with tooth shape support frame (5), the outside of tooth shape support frame (5) is provided with several spiral spiral rib (52), and the spiral groove (51) is formed between adjacent spiral rib (52), and the spiral groove (51) is provided with outer ring wire core (6) all, and the outer winding of several outer ring wire core (6) is provided with outer tape (7), and the outside of outer tape (7) is provided with armored layer (8), and the outside of armored layer (8) is provided with outer sheath (9).

2. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, The inner ring wire core (3) and the outer ring wire core (6) are the same structure, the inner ring wire core (3) includes a conductor and an insulation layer arranged outside the conductor.

3. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 2, characterized in that, The insulation layer is cross-linked polyolefin.

4. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 2, characterized in that, The conductor is made of aluminum or aluminum alloy.

5. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, Two symmetrical T-shaped protrusions (91) are arranged on the outer sheath (9), and adjacent T-shaped protrusions (91) on the outer sheath (9) are connected by a buckle strip (10).

6. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 5, characterized in that, A buckle outer inclined surface (92) is arranged on the T-shaped protrusion (91), and a buckle inner inclined surface (101) matched with the buckle outer inclined surface (92) is arranged on the buckle strip (10).

7. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, The inner tape (4) and the outer tape (7) are both PP tapes.

8. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, The anti-tension element (1) is a galvanized steel strand.

9. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, The armored layer (8) is a double steel belt armored layer.

10. The multi-core side-by-side aluminum alloy new energy photovoltaic cable according to claim 1, characterized in that, The outer sheath (9) is made of cross-linked polyolefin.

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