A solar cell module with uniform heat conduction function

Abstract

The invention discloses a solar cell module with a uniform heat conduction function. The solar cell module includes glass, a first ethane-vinyl acetate copolymer (EVA), a cell sheet, a second ethane-vinyl acetate copolymer (EVA), a third ethane-vinyl acetate copolymer (EVA) and a backboard, which are all laminated together in sequence. A first graphite heat conduction layer is arranged between the third ethane-vinyl acetate copolymer (EVA) and the backboard. A reflection layer is arranged between the second ethane-vinyl acetate copolymer (EVA) and the third ethane-vinyl acetate copolymer (EVA). Compared with the prior art, the solar cell module has the following beneficial effects: uniform heat transfer among packaging materials of the solar cell module is achieved by means of the high thermal conduction capability of a graphite material, a solar cell has uniform distributed temperatures, the temperature of the cell is reduced, and the conversion efficiency of the cell and the generating capacity of the module are greatly increased; and through adoption of the reflection layer, sunlight will not reach the first graphite heat conduction layer, and will be reflected by the reflection layer to the cell to be reutilized, so the generating capacity of the cell module is further enhanced.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell component with uniform heat conduction function. Background technique [0002] The performance of crystalline silicon solar cells is related to the base material, structure and manufacturing process of the battery on the one hand, and to external factors such as temperature and light intensity on the other hand. At present, in order to improve the conversion efficiency of the battery, solar cell manufacturers focus on the first aspect, and have conducted a lot of research on the selection of silicon wafer materials, the design of the battery structure and the optimization of the manufacturing process. Efficiency has been continuously improved. External factors also have a great impact on the conversion efficiency of batteries: solar cells are packaged into modules, and in the process of generating electricity outdoors, the working temperature and light intensity...

AI Technical Summary

Problems solved by technology

[0004] like figure 1 As shown, the existing common solar cell module includes glass 1', the first layer of ethylene-vinyl acetate copolymer (EVA) 2', battery sheet 3', ethylene-vinyl acetate copolymer (EVA) 4' and the back plate 5', the packaging material of the above-mentioned solar cell module has poor electrical and thermal conductivity, so that the temperature distribution on the surface of the solar cell is wide, and the heat of the solar cell cannot be dissipated, which will reduce the conversion efficiency of the solar cell and reduce the power generation of the module ; How to develop a solar cell module so that its operating temperature can be as low as possible and increase the power generation of the module has become the focus of solar cell workers

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