Photovoltaic glass with reflective portions and photovoltaic module

Abstract

The invention discloses a photovoltaic glass with reflecting portions. The reflecting portions are arranged in the photovoltaic glass. According to the photovoltaic glass, the reflecting portions andthe photovoltaic glass are integrated into an entire body by arranging the reflecting portions in the photovoltaic glass, thereby avoiding various complicated operations of placing reflective strips in gaps of battery pieces in a later period; a reflecting surface is lifted into the photovoltaic glass, is higher than surfaces of the battery pieces, so that the reflecting height is increased, the distance of light reflection is shortened, and more light can be reflected back to front surfaces of the battery pieces, and the power generation efficiency of the photovoltaic module is improved.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic glass with a reflective part and a photovoltaic module comprising the reflective glass. Background technique [0002] With the continuous consumption of energy, the price of energy continues to rise, and the development and utilization of new energy has become the main topic of research in the field of energy. Because solar energy has many advantages such as no pollution, no regional restrictions, and inexhaustible supply, the study of solar power generation has become one of the popular directions for developing new energy sources. At this stage, using solar cells to generate electricity is a major way for people to use solar energy. With the continuous development of photovoltaic technology, photovoltaic module products, which are semiconductor devices that convert solar energy into electrical energy, have been rapidly developed and their appli...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many ways to reduce the reflection of incident light: 1) Embossing is carried out on the side of the photovoltaic glass facing the cell, so as to increase the diffuse reflection and reduce the reflection of incident light, but this method cannot make good use of the space between cells. and the incident light transmitted between the strings, such as Figure 1-4 As shown, the arrow in the figure represents the direction of light propagation. After the light passes through the photovoltaic glass 1, passes through the packaging material 2, and reaches the rear plate 4, most of the light cannot return to the front light-receiving surface of the cell 3, only due to diffuse reflection A small amount of light will return to the front light-receiving surface of the cell 3 after reflection and refraction, but the amount of light that can be reflected back to the cell 3 is relatively small, and the light attenuation is relatively low due to the long propagation route of the light. 2) As described in the Chinese Patent No. 201621026600.6 and the patent titled "A Glass Photovoltaic Module", by pasting the corresponding battery strings on the lower surface of the photovoltaic glass The reflective film reflects the light incident on the surface of the reflective film twice and then reaches the surface of the battery string adjacent to the reflective film. The battery string absorbs the light after the second reflection. However, if the photovoltaic glass in this technical solution is embossed glass, the displacement of the reflective film may occur during the lamination and lamination process, thereby affecting the performance of the photovoltaic module. The quality and the effect of the final reflected light, and because a reflective film with a narrow width is placed between the cells, the production efficiency and yield rate will be greatly reduced

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