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Self-cleaning solar cell backboard

A solar backplane and self-cleaning technology, applied in the field of solar modules, can solve problems such as reducing the life of photovoltaic modules, affecting light conversion efficiency, and easy adhesion of dust, etc., to achieve the effects of improving light conversion efficiency, simple structure, and reducing reflectivity

Inactive Publication Date: 2016-11-09
WUXI SUNOCEAN
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Problems solved by technology

The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the existing solar backsheet is easy to age after long-term use, which greatly reduces the life of the photovoltaic module. And the surface of the existing solar backplane is easy to stick dust, which greatly affects the light conversion efficiency

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  • Self-cleaning solar cell backboard

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Embodiment Construction

[0012] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0013] like figure 1 As shown, a self-cleaning solar back sheet includes a PET substrate 3, one side of the PET substrate 3 is connected to the weather-resistant layer 1 through an adhesive layer 2, and a self-cleaning layer 5 is arranged on the upper surface of the weather-resistant layer. The other end of 3 is connected to the weather-resistant adhesive layer 4 through the adhesive layer 2, and the self-cleaning layer 5 is a titanium dioxide coating. The adhesive layer 2 is made of polyolefin material, and the thickness of the polyolefin material is not greater than 60 microns.

[0014] The invention is simple in structure and easy to use. The reflectivity of the panel can be effectively reduced by setting the titanium dioxide coating, which can make the solar module generate more electric energy. The arrangement of the titanium dioxide...

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Abstract

The invention relates to a self-cleaning solar cell backboard, and the backboard comprises a PET base material. One side of the PET base material is connected with a weather-proof layer through an adhesive layer, and the upper surface of the weather-proof layer is provided with a self-cleaning layer. The other end of the PET base material is connected with a weather-proof adhesive layer through the adhesive layer. The self-cleaning layer is a titanium dioxide coating layer. The backboard is simple in structure, is convenient to use, can effectively reduce the reflectivity of a panel through the titanium dioxide coating layer, and can enable a solar module to generate more electric energy. The titanium dioxide coating layer can enable the aging resistance of the panel, and greatly prolongs the service life of the solar module. The self-cleaning performance of titanium dioxide depends on the flowing of rainwater, so as to wash dust on the surface of the backboard, thereby greatly improving the light conversion efficiency.

Description

technical field [0001] The invention relates to the field of solar modules, in particular to a self-cleaning solar backboard. Background technique [0002] Solar energy, as a green and inexhaustible energy source, is undoubtedly the best choice to replace traditional thermal power generation. Since solar cells need to be exposed to the outdoors for a long time, the cells in photovoltaic modules need to be protected to prevent atmospheric pollution. The impact and overlooking of environmental factors such as water vapor, oxygen, and ultraviolet rays. The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the existing solar backsheet is easy to age after long-term use, which greatly reduces the life of the photovoltaic module. Moreover, the surface of the existing solar backplane is easy to adhere to dust, which greatly affects t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/049
CPCY02E10/50H01L31/049
Inventor 黄新东刘天人
Owner WUXI SUNOCEAN
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