Low-smoke high-flame-retardant aluminum alloy photovoltaic cable

Abstract

The utility model discloses a low-smoke high-flame-retardant aluminum alloy photovoltaic cable, which comprises a photovoltaic cable main body, a cable core is arranged in the photovoltaic cable main body, an aluminum alloy inner sleeve is arranged outside the cable core, a signal shielding layer is arranged at one end, far away from the cable core, of the aluminum alloy inner sleeve, and a cable core is arranged in the signal shielding layer. And a flame-retardant layer is arranged at one end, far away from the aluminum alloy inner sleeve, of the signal shielding layer. According to the photovoltaic cable, the wear-resistant layer is installed outside the photovoltaic cable main body, so that the wear resistance of the surface of the photovoltaic cable main body can be effectively improved, and the problem that the surface of the photovoltaic cable main body is easily cut open by a sharp object and the interior is exposed can be effectively avoided; the flame-retardant layer is arranged on the photovoltaic cable main body, so that the flame-retardant layer can effectively improve the overall flame-retardant performance of the photovoltaic cable main body, the photovoltaic cable main body can normally operate for a long time in a high-temperature environment, smoke generated by the photovoltaic cable main body during combustion is reduced, and when short circuit occurs, evacuation time can be won for personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a low-smoke and highly flame-retardant aluminum alloy photovoltaic cable. Background Art

[0002] Aluminum alloy cables are not only used in the field of photovoltaic power generation, but also widely used in many fields such as building electrification and wind power generation. In these fields, aluminum alloy cables have been widely used due to their advantages such as light weight, good conductivity and corrosion resistance. The existing aluminum alloy photovoltaic cables can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] The aluminum alloy photovoltaic cables widely used on the market are prone to long-term contact with the ground during the laying process. Once there are uncleaned sharp objects on the ground, it is easy to cause the cable surface to be damaged, resulting in the inside of the cable being exposed. Once a short circuit occurs, it is easy to cause the cable surface to burn and produce a lot of thick smoke. For this reason, we propose a low-smoke and high-flame-retardant aluminum alloy photovoltaic cable to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a low-smoke and highly flame-retardant aluminum alloy photovoltaic cable to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-smoke and high-flame-retardant aluminum alloy photovoltaic cable, comprising a photovoltaic cable body, a cable core is installed inside the photovoltaic cable body, an aluminum alloy inner sleeve is arranged outside the cable core, a signal shielding layer is arranged at one end of the aluminum alloy inner sleeve away from the cable core, a flame retardant layer is arranged at one end of the signal shielding layer away from the aluminum alloy inner sleeve, and a wear-resistant layer is arranged at one end of the flame retardant layer away from the signal shielding layer.

[0006] As a further preferred embodiment of the present technical solution, the aluminum alloy inner sleeve is made by weaving aluminum alloy wires, and the thickness of the aluminum alloy inner sleeve is 1-2 mm.

[0007] As a further preferred embodiment of the present technical solution, the signal shielding layer is made of copper foil as raw material, and the thickness of the signal shielding layer is 3 times that of the aluminum alloy inner sleeve.

[0008] As a further preferred embodiment of the present technical solution, the flame retardant layer is made of aromatic polyamide fiber as raw material, and the thickness of the flame retardant layer is the same as that of the signal shielding layer.

[0009] As a further preferred embodiment of the present technical solution, the wear-resistant layer is made of nitrile rubber as raw material, and the thickness of the wear-resistant layer is 1.2 times that of the signal shielding layer.

[0010] As a further preferred embodiment of the present technical solution, the wear-resistant layer is fixed to the outside of the photovoltaic cable body by hot-melt method.

[0011] As a further preferred embodiment of the present technical solution, the signal shielding layer is fixed to the outside of the aluminum alloy inner sleeve by bonding, and the flame retardant layer is also fixed to the outside of the signal shielding layer by bonding.

[0012] The utility model provides a low-smoke and high-flame-retardant aluminum alloy photovoltaic cable, which has the following beneficial effects:

[0013] The utility model can effectively increase the wear resistance of the surface of the photovoltaic cable body by installing a wear-resistant layer on the outside of the photovoltaic cable body. When the photovoltaic cable body is being laid, it can effectively avoid the problem that the surface of the photovoltaic cable body is easily cut by sharp objects, resulting in internal exposure, thereby improving the service life of the photovoltaic cable body. By installing a flame retardant layer inside the photovoltaic cable body, the flame retardant layer can effectively increase the overall flame retardant performance of the photovoltaic cable body, allowing the photovoltaic cable body to operate normally for a long time in a high temperature environment, while reducing the smoke produced by the photovoltaic cable body when burning, and when a short circuit occurs, it can buy time for people to evacuate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the first three-dimensional structure of the utility model;

[0015] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model.

[0017] In the figure: 1. Photovoltaic cable body; 2. Cable core; 3. Aluminum alloy inner sheath; 4. Signal shielding layer; 5. Flame retardant layer; 6. Wear-resistant layer. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figures 1 to 3 As shown, in this embodiment, a low-smoke and high-flame-retardant aluminum alloy photovoltaic cable includes a photovoltaic cable body 1, a cable core 2 is installed inside the photovoltaic cable body 1, an aluminum alloy inner sleeve 3 is arranged outside the cable core 2, a signal shielding layer 4 is arranged at one end of the aluminum alloy inner sleeve 3 away from the cable core 2, a flame retardant layer 5 is arranged at one end of the signal shielding layer 4 away from the aluminum alloy inner sleeve 3, and a wear-resistant layer 6 is arranged at one end of the flame retardant layer 5 away from the signal shielding layer 4.

[0020] By installing a wear-resistant layer 6 on the outside of the photovoltaic cable body 1, the wear resistance of the surface of the photovoltaic cable body 1 can be effectively increased. When the photovoltaic cable body 1 is being laid, it can effectively avoid the problem that the surface of the photovoltaic cable body 1 is easily cut by sharp objects, resulting in internal exposure, thereby improving the service life of the photovoltaic cable body 1. By installing a flame retardant layer 5 inside the photovoltaic cable body 1, the flame retardant layer 5 can effectively increase the overall flame retardant performance of the photovoltaic cable body 1, allowing the photovoltaic cable body 1 to operate normally for a long time in a high temperature environment, while reducing the smoke produced by the photovoltaic cable body 1 during combustion. When a short circuit occurs, it can buy time for people to evacuate.

[0021] In other embodiments, the aluminum alloy inner sleeve 3 is made by braiding aluminum alloy wires, and the thickness of the aluminum alloy inner sleeve 3 is 1-2 mm;

[0022] Because aluminum alloy has the characteristics of corrosion resistance and high temperature resistance, it can resist the influence of environmental factors such as ultraviolet rays, oxidation, and corrosion, ensuring the long-term and stable operation of the cable.

[0023] In other embodiments, the signal shielding layer 4 is made of copper foil as raw material, and the thickness of the signal shielding layer 4 is 3 times that of the aluminum alloy inner sleeve 3;

[0024] By covering the outside of the cable core 2 with copper foil, since the copper foil itself has high conductivity, it can effectively absorb high-frequency electromagnetic waves, thereby achieving the effect of electromagnetic shielding, thereby ensuring the stability and reliability of signal transmission.

[0025] In other embodiments, the flame retardant layer 5 is made of aromatic polyamide fiber as a raw material, and the thickness of the flame retardant layer 5 is the same as that of the signal shielding layer 4;

[0026] Since aromatic polyamide fiber is a synthetic fiber made from aromatic raw materials through condensation spinning, this type of fiber has high heat resistance and insulation performance and low overall quality. While improving the high flame retardancy of the photovoltaic cable body 1, it can also reduce the overall quality of the photovoltaic cable body 1 to a certain extent, and reduce the difficulty of handling the photovoltaic cable body 1 as a whole. Therefore, aromatic polyamide fiber is suitable for use as the raw material of the flame retardant layer 5.

[0027] In other embodiments, the wear-resistant layer 6 is made of nitrile rubber as a raw material, and the thickness of the wear-resistant layer 6 is 1.2 times that of the signal shielding layer 4;

[0028] Since nitrile is a synthetic rubber material with excellent oil resistance and cut resistance, the surface of the photovoltaic cable body 1 can have strong cut resistance under the action of the wear-resistant layer 6, preventing external sharp objects from easily cutting the surface of the photovoltaic cable body 1, increasing the wear resistance of the surface of the photovoltaic cable body 1, and effectively preventing the surface of the photovoltaic cable body 1 from being damaged during the laying process, effectively improving the overall service life of the photovoltaic cable body 1, so nitrile rubber is suitable as the raw material for the wear-resistant layer 6.

[0029] In other embodiments, the wear-resistant layer 6 is fixed to the outside of the photovoltaic cable body 1 by hot melting;

[0030] Through this design, the wear-resistant layer 6 can be closely attached to the surface of the flame-retardant layer 5 to reduce the overall diameter of the photovoltaic cable body 1 .

[0031] In other embodiments, the signal shielding layer 4 is fixed to the outside of the aluminum alloy inner sleeve 3 by bonding, and the flame retardant layer 5 is also fixed to the outside of the signal shielding layer 4 by bonding;

[0032] Through this design, the aluminum alloy inner sleeve 3, the signal shielding layer 4 and the flame retardant layer 5 can be connected together more stably, thereby preventing delamination between the aluminum alloy inner sleeve 3, the signal shielding layer 4 and the flame retardant layer 5.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-smoke and high-flame-retardant aluminum alloy photovoltaic cable, comprising a photovoltaic cable body (1), characterized in that: A cable core (2) is installed inside the photovoltaic cable body (1); an aluminum alloy inner sleeve (3) is arranged outside the cable core (2); a signal shielding layer (4) is arranged at one end of the aluminum alloy inner sleeve (3) away from the cable core (2); a flame retardant layer (5) is arranged at one end of the signal shielding layer (4) away from the aluminum alloy inner sleeve (3); and a wear-resistant layer (6) is arranged at one end of the flame retardant layer (5) away from the signal shielding layer (4).

2. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The aluminum alloy inner sleeve (3) is made by weaving aluminum alloy wires, and the thickness of the aluminum alloy inner sleeve (3) is 1-2 mm.

3. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The thickness of the signal shielding layer (4) is three times that of the aluminum alloy inner sleeve (3).

4. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The thickness of the flame retardant layer (5) is the same as that of the signal shielding layer (4).

5. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The thickness of the wear-resistant layer (6) is 1.2 times that of the signal shielding layer (4).

6. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The wear-resistant layer (6) is fixed to the outside of the photovoltaic cable body (1) by means of hot melting.

7. The low-smoke and high-flame-retardant aluminum alloy photovoltaic cable according to claim 1, characterized in that: The signal shielding layer (4) is fixed to the outside of the aluminum alloy inner sleeve (3) by bonding, and the flame retardant layer (5) is also fixed to the outside of the signal shielding layer (4) by bonding.

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