Photovoltaic weather-proof long-life cable

Abstract

The utility model discloses a photovoltaic weather-proof long-life cable, which comprises a rubber sleeve, the inner wall of the rubber sleeve is fixedly connected with a weather-proof protective layer, the inner wall of the weather-proof protective layer is fixedly connected with a steel tape armor, the inner wall of the steel tape armor is fixedly connected with an insulating sleeve, the inner wall of the insulating sleeve is fixedly connected with a conductive metal wire, and the inner wall of the conductive metal wire is fixedly connected with an outer wall of the rubber sleeve. The weather-proof protective layer comprises a fluoroplastic layer fixedly connected to the inner wall of the rubber sleeve, and the inner wall of the fluoroplastic layer is fixedly connected with a polyimide layer. According to the utility model, firstly, the rubber sleeve is used for isolating and blocking rainwater, then the fluoroplastic layer is used for blocking external high temperature, then the polyimide layer is used for blocking external low temperature, and finally the steel tape armoring and the nylon cloth layer are used for protecting the cable, so that the cable is prevented from being damaged due to pulling of fierce wind; at the moment, the cable can be prevented from being damaged due to climate change, so that the effect of good weather resistance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a weather-resistant and long-life cable for photovoltaic use. Background Technique

[0002] Photovoltaic power generation is a technology that converts solar energy into electrical energy using the photovoltaic effect. It mainly consists of three major parts: solar panels, controllers, and inverters. The main components are composed of electronic components and do not involve mechanical parts. Photovoltaic power generation equipment is refined, reliable, stable, and has a long lifespan. It is simple to install and maintain. The photovoltaic power generation system converts light energy into direct current electrical energy and then converts it into alternating current electrical energy through an inverter for power supply or injection into the power grid. It is one of the most common and mature new energy power generation technologies and also one of the main application forms of solar power generation.

[0003] According to the patent number CN221008631U published on the Chinese Patent Network, the patent name is a cable for photovoltaic power generation, which includes multiple groups of cooperating conductive wire cores. There is a central axis in the middle of the multiple groups of conductive wire cores. Multiple groups of rubber columns are evenly arranged on the central axis corresponding to the conductive wire cores. Arc-shaped blocks are clamped on the outer ends of the rubber columns to hold the conductive wire cores. A wrapping layer is arranged on the outside of the conductive wire cores, a shielding layer is arranged on the outside of the wrapping layer, a fireproof layer is arranged on the outside of the shielding layer, an insulating layer is arranged on the outside of the fireproof layer, a wear-resistant protective layer is arranged on the outside of the insulating layer. Multiple reinforcing ribs and air bags are arranged at intervals between the inner side of the wear-resistant protective layer and the insulating layer. An antioxidant surface layer is arranged on the surface of the wear-resistant protective layer. The utility model has good protection for the cable during bending and can effectively reduce the damage to the cable caused by bending. However, the cable has poor weather resistance. Currently, most photovoltaic cables are installed outdoors, where the climate changes greatly. After long-term use, the cable is very likely to be damaged due to climate change, resulting in the cable being unusable.

[0004] Therefore, it is necessary to design and transform the cable to make it have good weather resistance. Content of the Utility Model

[0005] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a weather-resistant and long-life cable for photovoltaic use, which has the advantage of good weather resistance and solves the problems that the cable has poor weather resistance. Currently, most photovoltaic cables are installed outdoors, where the climate changes greatly. After long-term use, the cable is very likely to be damaged due to climate change, resulting in the cable being unusable.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: A weather-resistant and long-life cable for photovoltaic use, including a rubber sleeve, an inner wall of the rubber sleeve is fixedly connected with a weather-resistant protective layer, an inner wall of the weather-resistant protective layer is fixedly connected with a steel tape armor, an inner wall of the steel tape armor is fixedly connected with an insulating sleeve, and an inner wall of the insulating sleeve is fixedly connected with a conductive metal wire;

[0007] The weather-resistant protective layer includes a fluoroplastic layer fixedly connected to the inner wall of the rubber sleeve. The inner wall of the fluoroplastic layer is fixedly connected with a polyimide layer. The inner wall of the polyimide layer is fixedly connected with a nylon cloth layer. The inner wall of the nylon cloth layer is fixedly connected with the surface of the steel tape armor.

[0008] Preferably, the material of the rubber sleeve is ethylene propylene rubber, and the color of the rubber sleeve is black.

[0009] Preferably, the material of the steel tape armor is stainless steel, and the steel tape armor is adhesively fixed to the insulating sleeve through glue.

[0010] Preferably, the material of the fluoroplastic layer is perfluoroethylene propylene, and the thickness of the fluoroplastic layer is 0.5 cm.

[0011] Preferably, the material of the polyimide layer is cold-resistant polyimide, and the thickness of the polyimide layer is the same as that of the fluoroplastic layer.

[0012] Preferably, the material of the nylon cloth layer is polyhexamethylene adipamide, and the nylon cloth is fixedly connected to the steel tape armor through a heat shrinkage process.

[0013] Preferably, an antioxidant film is provided on the surface of the rubber sleeve, and the material of the antioxidant film is a TPU film.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. First, the present invention uses the rubber sleeve to isolate and block rainwater, then uses the fluoroplastic layer to block external high temperature, then uses the polyimide layer to block external low temperature, and finally uses the steel tape armor and the nylon cloth layer to protect the cable, preventing the cable from being damaged due to the pulling of strong winds. At this time, the cable can be prevented from being damaged due to climate change, so as to achieve the effect of good weather resistance.

[0016] 2. By providing a rubber sleeve made of ethylene propylene rubber, the present invention can improve the weather resistance of the rubber sleeve and facilitate the use of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the rubber sleeve structure of the present invention;

[0018] Figure 2 is a front view sectional view of the conductive metal wire structure of the present invention;

[0019] Figure 3 is a front view partial sectional view of the weather-resistant protective layer structure of the present invention;

[0020] Figure 4 This is a partial front view cross-sectional view of the rubber sleeve structure of the present utility model.

[0021] In the figure: 1. Rubber sleeve; 2. Weather-resistant protective layer; 3. Steel tape armor; 4. Insulating sleeve; 5. Conductive metal wire; 21. Fluoroplastic layer; 22. Polyimide layer; 23. Nylon cloth layer; 6. Antioxidant film. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 4 shown, the weather-resistant and long-life cable for photovoltaic use provided by the present utility model includes a rubber sleeve 1. An inner wall of the rubber sleeve 1 is fixedly connected with a weather-resistant protective layer 2. An inner wall of the weather-resistant protective layer 2 is fixedly connected with a steel tape armor 3. An inner wall of the steel tape armor 3 is fixedly connected with an insulating sleeve 4. An inner wall of the insulating sleeve 4 is fixedly connected with a conductive metal wire 5;

[0024] The weather-resistant protective layer 2 includes a fluoroplastic layer 21 fixedly connected to the inner wall of the rubber sleeve 1. An inner wall of the fluoroplastic layer 21 is fixedly connected with a polyimide layer 22. An inner wall of the polyimide layer 22 is fixedly connected with a nylon cloth layer 23. An inner wall of the nylon cloth layer 23 is fixedly connected to a surface of the steel tape armor 3.

[0025] Referring to Figure 2 , the material of the rubber sleeve 1 is ethylene propylene rubber, and the color of the rubber sleeve 1 is black.

[0026] As a technical optimization scheme of the present utility model, by providing the rubber sleeve 1 made of ethylene propylene rubber, the weather resistance of the rubber sleeve 1 can be increased, which is convenient for users to use.

[0027] Referring to Figure 2 , the material of the steel tape armor 3 is stainless steel, and the steel tape armor 3 is adhesively fixed to the insulating sleeve 4 through glue.

[0028] As a technical optimization scheme of the present utility model, by providing the steel tape armor 3 made of stainless steel, rusting of the steel tape armor 3 can be prevented, and damage to the steel tape armor 3 due to rusting can be prevented.

[0029] Referring to Figure 3 , the material of the fluoroplastic layer 21 is perfluoroethylene propylene, and the thickness of the fluoroplastic layer 21 is 0.5 cm.

[0030] As a technical optimization solution of the present utility model, by providing a fluoroplastic layer 21 made of perfluoroethylene propylene, the high-temperature resistance of the fluoroplastic layer 21 can be increased, preventing the fluoroplastic layer 21 from being damaged due to high temperature.

[0031] Reference Figure 3 , the material of the polyimide layer 22 is cold-resistant polyimide, and the thickness of the polyimide layer 22 is the same as that of the fluoroplastic layer 21.

[0032] As a technical optimization solution of the present utility model, by providing a polyimide layer 22 made of cold-resistant polyimide, the low-temperature resistance of the polyimide layer 22 can be increased, preventing the polyimide layer 22 from being damaged due to low temperature.

[0033] Reference Figure 3 , the material of the nylon cloth layer 23 is polyhexamethylene adipamide, and the nylon cloth is fixedly connected to the steel tape armor 3 through a heat shrinkage process.

[0034] As a technical optimization solution of the present utility model, by providing a nylon cloth layer 23 made of polyhexamethylene adipamide, the bending resistance of the cable can be increased, preventing the cable from being damaged due to bending.

[0035] Reference Figure 4 , an antioxidant film 6 is provided on the surface of the rubber sleeve 1, and the material of the antioxidant film 6 is a TPU film.

[0036] As a technical optimization solution of the present utility model, by providing the antioxidant film 6, the antioxidant property of the rubber sleeve 1 can be increased, preventing the rubber sleeve 1 from being damaged due to oxidation.

[0037] The working principle and usage process of the present utility model: During use, first, the rubber sleeve 1 is protected by the antioxidant film 6 to prevent the rubber sleeve 1 from oxidizing during use. When it rains, the rubber sleeve 1 is used to isolate and block rainwater, preventing rainwater from seeping into the cable. In high-temperature weather, the fluoroplastic layer 21 is used to block external high temperature, preventing the cable from being damaged due to external high temperature. In low-temperature weather, the polyimide layer 22 is used to block external low temperature, preventing the cable from being damaged due to external low temperature. In strong wind weather, the steel tape armor 3 and the nylon cloth layer 23 are used to protect the cable, preventing the cable from being damaged due to the pulling of strong wind. At this time, the cable can be prevented from being damaged due to climate change, thereby achieving the effect of good weather resistance.

[0038] In summary: For the weather-resistant long-life cable for photovoltaic use, by providing the rubber sleeve 1, weather-resistant protective layer 2, steel tape armor 3, insulating sleeve 4, conductive metal wire 5, fluoroplastic layer 21, polyimide layer 22, and nylon cloth layer 23, the problem that the cable has poor weather resistance is solved. Currently, most of the cables for photovoltaic use are installed outdoors, where the climate changes greatly. After long-term use, the cables are very likely to be damaged due to climate changes, resulting in the cables being unusable.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Weather-resistant long-life cable for photovoltaic use, including a rubber sleeve (1), characterized in that: The inner wall of the rubber sleeve (1) is fixedly connected with a weather-resistant protective layer (2). The inner wall of the weather-resistant protective layer (2) is fixedly connected with a steel tape armor (3). The inner wall of the steel tape armor (3) is fixedly connected with an insulating sleeve (4). The inner wall of the insulating sleeve (4) is fixedly connected with a conductive metal wire (5). The weather-resistant protective layer (2) includes a fluoroplastic layer (21) fixedly connected to the inner wall of the rubber sleeve (1). The inner wall of the fluoroplastic layer (21) is fixedly connected with a polyimide layer (22). The inner wall of the polyimide layer (22) is fixedly connected with a nylon cloth layer (23). The inner wall of the nylon cloth layer (23) is fixedly connected to the surface of the steel tape armor (3).

2. The weather-resistant long-life cable for photovoltaic use according to claim 1, characterized in that: The material of the rubber sleeve (1) is ethylene propylene rubber, and the color of the rubber sleeve (1) is black.

3. The weather-resistant long-life cable for photovoltaic use according to claim 1, wherein: The material of the steel tape armor (3) is stainless steel, and the steel tape armor (3) is fixedly adhered to the insulating sleeve (4) by glue.

4. The weather-resistant long-life cable for photovoltaic use according to claim 1, wherein: The material of the fluoroplastic layer (21) is perfluoroethylene propylene, and the thickness of the fluoroplastic layer (21) is 0.5 cm.

5. The weather-resistant long-life cable for photovoltaic use according to claim 1, wherein: The material of the polyimide layer (22) is cold-resistant polyimide, and the thickness of the polyimide layer (22) is the same as that of the fluoroplastic layer (21).

6. The weather-resistant long-life cable for photovoltaic use according to claim 1, wherein: The material of the nylon cloth layer (23) is polyhexamethylene adipamide, and the nylon cloth is fixedly connected to the steel tape armor (3) through a heat shrinkage process.

7. The weather-resistant long-life cable for photovoltaic use according to claim 1, characterized in that: The surface of the rubber sleeve (1) is provided with an antioxidant film (6), and the material of the antioxidant film (6) is a TPU film.

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