Production process of self-cleaning solar cell module

Abstract

The invention relates to a self-cleaning solar cell module which comprises tempered glass, an EVA adhesive film, an antireflection film, a single crystalline silicon solar cell piece, an EVA adhesive film, a backboard, an aluminium alloy frame and a DC conjunction box. The tempered glass is low-iron ultra-clear tempered glass, of which the light receiving surface is plated with a hydrophobic antireflection film; and the two ends of one long frame of the aluminium alloy frame are provided with water leakage holes, so that rainwater or dew with dusts deposited in the frame are allowed to flow away from the water leakage holes. The production process of the self-cleaning solar cell module comprises the following steps: preparing the tempered glass having the hydrophobic antireflection film, preparing the single crystalline silicon solar cell piece, preparing an assembly lamination piece, carrying out trimming and framing up, welding the DC conjunction box, and carrying out module test.

Description

technical field [0001] The invention relates to the technical field of solar cell assembly production, in particular to a self-cleaning solar cell assembly and a production process thereof. Background technique [0002] As a product of new clean and renewable energy, solar cell modules have brought huge benefits to mankind. With the continuous development of technology, the improvement of solar light energy conversion efficiency has made this type of product further enter the daily life of thousands of households middle. The photoelectric conversion rate is one of the most important performances of solar cell modules. At present, all kinds of solar cell modules on the market have some quality problems or hidden dangers, such as: EVA yellowing, module delamination, and junction box burnout. This is because solar battery modules are generally installed in the open air, and rainwater and dew often accumulate in the frame. The battery panel unit is eroded by rainwater and dew f...

AI Technical Summary

Problems solved by technology

The photoelectric conversion rate is one of the most important performances of solar cell components. At present, all kinds of solar cell components on the market have some quality problems or hidden dangers, such as: EVA yellowing, component delamination, and junction box burnout, etc.

This is because solar battery modules are generally installed in the open air, and rainwater and dew often accumulate in the frame. The battery panel unit is eroded by rainwater and dew for a long time, and its sealing will be affected, and it is easy to be corroded and damaged, thus affecting Photoelectric conversion efficiency and service life of the battery panel

Moreover, a layer of dust will inevitably adhere to the surface of the tempered glass layer of the solar cell module. Even in rainy and snowy weather, the flow of rainwater is not easy to take away the dust, so that the effective light intensity that the solar cell module can receive is greatly reduced. The power generated by the solar cell module is also reduced

In terms of improving the light transmission efficiency and light absorption, it is generally used in the world to increase the light transmittance of glass and surface texture to reduce the reflection loss of photons. However, this does not allow light to pass through and absorb to the maximum extent.

The self-cleaning of solar cells has always troubled people. After the completion of large-scale power stations, the impact of surface dust on the light absorption efficiency of components is as high as about 3%. However, the expensive cleaning and maintenance costs and the super-intensive labor make it easier to enter the power station after the completion of the project. Unclean embarrassment

At present, the products on the market to clean the surface of solar cells are all external additional facilities, which will undoubtedly increase the weight of the components and the complexity of installation, while greatly increasing the cost of the components, and the cleaning effect is not satisfactory.

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