Film-coated solar photovoltaic panel suitable for sand and dust region

Abstract

The invention discloses a film-coated solar photovoltaic panel suitable for a sand and dust region, and belongs to the field of solar photovoltaic panels. The outer side of a photovoltaic panel body is covered with an EVA film sleeve with high light transmittance, the EVA film sleeve is introduced between a pair of cleaning cotton, and the photovoltaic panel body is effectively separated from sand and dust through the EVA film sleeve, so that an adhesion carrier is provided for the sand and dust, and further the sand and dust tend not to pollute the surface of the photovoltaic panel body; meanwhile, an expansion column absorbs light to perform a thermal expansion-self-moving process, the EVA film sleeve is pushed to rotate to perform vertical position replacement, the EVA film sleeve which covers the upper side of the photovoltaic panel body and is polluted by dust is automatically replaced and synchronously cleaned, and when sunshine irradiation is lost, the expansion column is moved back to the initial position after cold contraction, so that the position exchange and cleaning of the EVA film sleeve are triggered by illumination and heating again; and therefore, the solar photovoltaic panel capable of preventing sand and dust and automatically cleaning is provided for the dust region.

Description

technical field [0001] The invention relates to the field of solar photovoltaic panels, and more particularly, to a film-coated solar photovoltaic panel suitable for sand and dust areas. Background technique [0002] Conventional energy sources are very limited, both in the world and in China. Solar energy is an inexhaustible renewable energy source for human beings, with sufficient cleanliness, absolute safety, relative ubiquity, long life and maintenance-free, resource sufficiency and potential economy. It has an important position in the long-term energy strategy. [0003] A solar photovoltaic panel is a power-generating device that generates direct current when exposed to sunlight. From top to bottom, it is divided into tempered glass, EVA film, battery sheet, EVA film and back sheet. EVA film is used to bond and fix tempered glass and battery sheet, as well as back sheet and battery sheet. [0004] In the north, a large area of ​​photovoltaic panels has also been lai...

AI Technical Summary

Problems solved by technology

[0004] In the north, a large area of ​​photovoltaic panels has also been laid, but the north is mostly dusty and windy areas, and photovoltaic panels are easily absorbed by a large amount of dust, which greatly hinders the absorption of light by photovoltaic panels and reduces the efficiency of photovoltaic panels. energy conversion efficiency

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