Photovoltaic subassembly and manufacturing method thereof

Abstract

The invention discloses a photovoltaic subassembly comprising a battery slice, a glass plate, a back plate, adhesive films and a frame, wherein the glass plate is arranged at the front surface of the battery slice; the back plate is arranged at the back surface of the battery slice; the adhesive films are formed between the glass plate and the battery slice and between the back plate and the battery slice, so that the photovoltaic subassembly is formed; the frame is arranged at the periphery of the photovoltaic subassembly, and a self-cleaning film is formed on the surface of the glass plate. The self-cleaning film at the surface of the glass plate of the photovoltaic subassembly has strong oil resistance; dust and stains on the self-cleaning film are difficultly attached to the self-cleaning film, so that dirt is not easily formed, further the work efficiency of the photovoltaic subassembly is ensured, and the quantity of scrapped photovoltaic subassemblies due to a hot spot effect caused by the dirt is also reduced. Meanwhile, the cleaning period of the photovoltaic subassembly also can be prolonged, and the labor intensity of a worker is reduced. The invention also discloses a manufacturing method of the photovoltaic subassembly.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a photovoltaic module and a manufacturing method thereof. Background technique [0002] As a form of utilization of solar energy, photovoltaic modules have been widely used, providing clean electric energy for human beings. [0003] When making photovoltaic modules, solar cells are first welded into battery strings, and then the battery strings are laid between the glass and the back plate and welded with a bus tape, then laminated, electroluminescent tests are performed before and after lamination, and finally framed. [0004] Photovoltaic modules are usually used in ground power stations or rooftop power stations. During use, they need to be exposed to the outdoors to collect sunlight, and they are also exposed to wind and rain. The surface of the photovoltaic module is an ordinary glass plate, which is easy to form dirt. [0005] Dirt on the surface of photovoltaic mod...

AI Technical Summary

Problems solved by technology

The surface of the photovoltaic module is an ordinary glass plate, which is easy to form dirt

[0005] Dirt on the surface of photovoltaic modules will affect its working efficiency. On the one hand, dirt will affect the transmittance of light, thereby affecting the amount of radiation received by the surface of photovoltaic modules; on the other hand, dirt will form shadows, causing local hot spot effects on photovoltaic modules , reduce the power generation efficiency of the components, or even burn the components

[0006] In order to ensure the working efficiency of photovoltaic modules, it is necessary to arrange staff to clean them regularly. At present, it is cleaned every half a month on average, and the labor intensity of the staff is very high.

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