Anti-salt fog photovoltaic cable

Abstract

The utility model provides an anti-salt fog photovoltaic cable, which relates to the technical field of photovoltaic cables and comprises a plurality of conductors, coating layers are arranged on the outer surfaces of the plurality of conductors, insulating layers are arranged among the outer surfaces of the plurality of coating layers, shielding layers are arranged on the outer surfaces of the insulating layers, and anti-salt fog layers are arranged on the outer surfaces of the shielding layers. According to the utility model, the coating layer can block and resist salt mist, moisture and chemical substances to a certain extent, so that the cable conductor is protected from corrosion and damage, the salt mist prevention layer can further resist attachment and corrosion of the salt mist, the internal structure of the cable and the conductor are protected from being eroded by the salt mist, and the service life of the cable is prolonged. And meanwhile, the protective coating can form a layer of firm protective film on the surface of the cable, so that corrosion of salt mist is effectively prevented, the cable has high-strength salt mist resistance, and the service life and the performance of the cable are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cables, in particular to a salt-fog proof photovoltaic cable. Background Art

[0002] As an emerging energy technology, solar energy technology has gradually become familiar to humans and is widely used. Photovoltaic cables are wires used to connect photovoltaic modules and inverters, and are very important photovoltaic components.

[0003] Currently, when photovoltaic cables are installed in environments that are prone to salt fog, such as the ocean or salt lake, the salt in the salt fog will cause corrosion, causing damage to the cable's outer insulation layer, shielding layer, metal conductor, etc., causing the cable to easily malfunction during use, reducing the reliability and life of the cable, increasing maintenance and replacement costs, and affecting the operation and maintenance efficiency of the photovoltaic power station. Utility Model Content

[0004] The utility model mainly provides a salt-fog-proof photovoltaic cable which improves the salt-fog resistance and ensures the service life of the photovoltaic cable.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a salt-fog proof photovoltaic cable, comprising a plurality of conductors, the outer surfaces of the plurality of conductors are all provided with a coating layer, an insulating layer is provided between the outer surfaces of the plurality of coating layers, the outer surface of the insulating layer is provided with a shielding layer, the outer surface of the shielding layer is provided with an anti-salt-fog layer, the outer surface of the anti-salt-fog layer is provided with a protective layer, and the outer surface of the protective layer is provided with a protective coating.

[0006] Preferably, the plurality of conductors are twisted, and the thickness of the coating layer is set between 50-200 μm. By twisting the conductors, the cable can have better flexibility and flexibility, and the coating layer is made of fluoroplastic material, which can provide a certain degree of barrier and resistance to salt spray, moisture and chemicals, thereby protecting the cable conductors from corrosion and damage, and can also provide certain mechanical protection to prevent external mechanical damage.

[0007] Preferably, the thickness of the insulating layer is set between 8-15 mm, and the material of the insulating layer is made of cross-linked polyethylene material, which has high dielectric strength and low loss characteristics, so that the cable has lower resistance and electrical loss when transmitting electric energy, thereby improving the efficiency of electric energy transmission.

[0008] Preferably, the thickness of the shielding layer is set between 50-200 μm, wherein the material of the shielding layer is made of metal foil or woven mesh, which can effectively absorb and reflect the electromagnetic interference and also provide good physical protection.

[0009] Preferably, the thickness of the anti-salt spray layer is set between 40-150 μm. The anti-salt spray layer is made of polytetrafluoroethylene, which has extremely low surface tension and excellent non-stickiness, can effectively resist the adhesion and corrosion of salt spray, protect the internal structure and conductor of the cable from salt spray erosion, and improve the stability of the cable in a salt spray environment.

[0010] Preferably, the thickness of the protective layer is set between 200-600 μm, and the thickness of the protective coating is set between 20-200 μm, wherein the protective layer is made of polyethylene material, has good wear resistance and corrosion resistance, and can effectively protect the internal structure and conductor of the cable from the influence of the external environment. At the same time, the protective coating material is epoxy resin, which has good corrosion resistance and salt spray resistance. It can form a solid protective film on the surface of the cable to effectively prevent the erosion of salt spray.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the coating layer can have a certain degree of barrier and resistance to salt spray, moisture and chemicals, thereby protecting the cable conductor from corrosion and damage. The anti-salt spray layer can further resist the adhesion and corrosion of salt spray, protect the internal structure and conductor of the cable from salt spray erosion, and improve the stability of the cable in a salt spray environment. At the same time, the protective coating can form a solid protective film on the surface of the cable, effectively preventing the erosion of salt spray, so that the cable has high-strength salt spray resistance, and ensures the service life and performance of the cable.

[0013] 2. In the utility model, the insulating layer makes the cable have higher dielectric strength and low loss characteristics, thereby improving the efficiency of power transmission. The shielding layer can effectively absorb and reflect these electromagnetic interferences. The protective layer can effectively protect the internal structure and conductor of the cable from the influence of the external environment, thereby improving the stability of the cable when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a salt-fog proof photovoltaic cable is proposed for the utility model;

[0015] Figure 2 A schematic diagram of the structure of a salt-fog proof photovoltaic cable is proposed for the utility model;

[0016] Figure 3 The utility model provides a partial structural schematic diagram of a salt-fog proof photovoltaic cable.

[0017] Legend: 1. Conductor; 2. Coating layer; 3. Insulation layer; 4. Shielding layer; 5. Salt spray protection layer; 6. Protective layer; 7. Protective coating. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] See also Figure 1 -

[0021] Figure 3 The utility model provides a technical solution: a salt-fog proof photovoltaic cable, comprising a plurality of conductors 1, the outer surfaces of the plurality of conductors 1 are all provided with a coating layer 2, an insulating layer 3 is provided between the outer surfaces of the plurality of coating layers 2, a shielding layer 4 is provided on the outer surface of the insulating layer 3, an anti-salt-fog layer 5 is provided on the outer surface of the shielding layer 4, a protective layer 6 is provided on the outer surface of the anti-salt-fog layer 5, and a protective coating 7 is provided on the outer surface of the protective layer 6.

[0022] like Figure 1 and Figure 2 As shown, multiple conductors 1 are twisted, and the thickness of the coating layer 2 is set between 50-200 μm. By twisting the conductors 1, the cable can have better flexibility and flexibility, and the coating layer 2 is made of fluoroplastic material, which can provide a certain degree of barrier and resistance to salt spray, moisture and chemicals, thereby protecting the cable conductors 1 from corrosion and damage, and can also provide certain mechanical protection to prevent external mechanical damage.

[0023] like Figure 1-Figure 3 As shown, the thickness of the insulating layer 3 is set between 8-15 mm. The material of the insulating layer 3 is made of cross-linked polyethylene material, which has high dielectric strength and low loss characteristics, so that the cable has lower resistance and electrical loss when transmitting electric energy, thereby improving the efficiency of electric energy transmission.

[0024] like Figure 1-Figure 3 As shown, the thickness of the shielding layer 4 is set between 50-200 μm, wherein the material of the shielding layer 4 is made of metal foil or woven mesh, which can effectively absorb and reflect the electromagnetic interference and also provide good physical protection.

[0025] like Figure 1-Figure 3As shown, the thickness of the anti-salt spray layer 5 is set between 40-150 μm. The anti-salt spray layer 5 is made of polytetrafluoroethylene, which has extremely low surface tension and excellent non-stickiness, can effectively resist the adhesion and corrosion of salt spray, protect the internal structure of the cable and the conductor 1 from salt spray erosion, and improve the stability of the cable in a salt spray environment.

[0026] like Figure 1-Figure 3 As shown, the thickness of the protective layer 6 is set between 200-600 μm, and the thickness of the protective coating 7 is set between 20-200 μm, wherein the protective layer 6 is made of polyethylene material, has good wear resistance and corrosion resistance, and can effectively protect the internal structure of the cable and the conductor 1 from the influence of the external environment. At the same time, the material of the protective coating 7 is epoxy resin, which has good corrosion resistance and salt spray resistance. It can form a solid protective film on the surface of the cable to effectively prevent the erosion of salt spray.

[0027] The use method and working principle of the device: the cable is arranged from the inside to the outside as a conductor 1, a coating layer 2, an insulating layer 3, a shielding layer 4, an anti-salt spray layer 5, a protective layer 6 and a protective coating 7, wherein by twisting the conductor 1, the cable can have better softness and flexibility, and the coating layer 2 can have a certain degree of barrier and resistance to salt spray, moisture and chemicals, thereby protecting the cable conductor 1 from corrosion and damage, the insulating layer 3 has high dielectric strength and low loss characteristics, and improves the efficiency of power transmission, the shielding layer 4 can effectively absorb and reflect these electromagnetic interferences, the anti-salt spray layer 5 can further resist the adhesion and corrosion of salt spray, protect the internal structure of the cable and the conductor 1 from salt spray erosion, and improve the stability of the cable in a salt spray environment, the protective layer 6 can effectively protect the internal structure of the cable and the conductor 1 from the influence of the external environment, and the protective coating 7 can form a solid protective film on the surface of the cable, effectively preventing the erosion of salt spray, so that the cable has high-strength salt spray resistance.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A salt-fog proof photovoltaic cable, comprising a plurality of conductors (1), characterized in that: The outer surfaces of the plurality of conductors (1) are all provided with a coating layer (2), an insulating layer (3) is provided between the outer surfaces of the plurality of coating layers (2), a shielding layer (4) is provided on the outer surface of the insulating layer (3), an anti-salt spray layer (5) is provided on the outer surface of the shielding layer (4), a protective layer (6) is provided on the outer surface of the anti-salt spray layer (5), and a protective coating (7) is provided on the outer surface of the protective layer (6).

2. The salt-fog-proof photovoltaic cable according to claim 1, characterized in that: The plurality of conductors (1) are twisted and the thickness of the coating layer (2) is set between 50-200 μm.

3. The salt-fog-proof photovoltaic cable according to claim 1, characterized in that: The thickness of the insulating layer (3) is set between 8 and 15 mm.

4. The salt-fog-proof photovoltaic cable according to claim 1, characterized in that: The thickness of the shielding layer (4) is set between 50-200 μm.

5. The salt-fog-proof photovoltaic cable according to claim 1, characterized in that: The thickness of the anti-salt spray layer (5) is set between 40-150 μm.

6. The salt-fog-proof photovoltaic cable according to claim 1, characterized in that: The thickness of the protective layer (6) is set between 200-600 μm, and the thickness of the protective coating (7) is set between 20-200 μm.

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