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Front plate packaging structure of solar module

A solar module and packaging structure technology, applied in electrical components, semiconductor devices, photovoltaic modules, etc., can solve the problems of limited sunlight absorption effect, difficulty in obtaining transparency, and convenient installation, etc., and achieve excellent absorption effect and good optical matching characteristics , good light transmission effect

Inactive Publication Date: 2012-10-17
DONGFANG ELECTRIC YIXING MAGI SOLAR POWER TECH
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the current single-layer glass package structure is difficult to obtain ideal transparency and convenient installation. The toughened glass only has a good absorption effect on part of the wavelength band of light, while the absorption effect on other wavelengths of sunlight is limited. To solve the problem, a front-shield packaging structure for solar modules is proposed, which is a structure with high quality and excellent performance

Method used

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  • Front plate packaging structure of solar module

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, a front plate encapsulation structure of a solar module, on the upper surface of the solar cell module, an ETFE fluoroplastic film, a first EVA film, a battery sheet, a second EVA film and a back plate are sequentially arranged from bottom to top. The ETFE fluoroplastic film is composed of three superimposed semiconductor contacts. The bottom unit absorbs red light, the middle layer absorbs green light, and the upper layer absorbs blue light. It has high light penetration and the ability of the light sheet to absorb multiple spectra.

[0022] The light transmittance of the ETFE fluoroplastic film of the present invention is greater than 95%.

[0023] The weight of the ETFE fluoroplastic film of the present invention is 0.1kg / m 2 .

[0024] Compared with traditional tempered glass, the packaging structure of the prese...

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Abstract

The invention relates to a front plate packaging structure of a solar module. An ETFE (Ethylene Tetra Fluoro Ethylene) fluoroplastic film (5), a first EVA (Ethylene-Vinyl Acetate) film (4), a cell slice (3), a second EVA film (2) and a back plate (1) are sequentially arranged on the upper surface of the solar cell module (6) from bottom to top. Compared with conventional tempered glass, the packaging structure disclosed by the invention has a better optical matched characteristic and not only has an excellent adsorption effect on main spectral response light of the cell slice, but also has a good light transmitting effect on light of which the wavelength is in the range of 320 to 1,200nm, so that the conversion efficiency of the solar module is improved and the packaging loss is reduced.

Description

technical field [0001] The invention relates to an ETFE fluorine plastic front plate encapsulation structure of a solar module, in particular to a protective film for a solar module. [0002] Background technique [0003] A solar module is a device that converts solar light energy into electrical energy. The power of a solar module is generally defined as the output power of the total cell * (1-package loss of the module). Sunlight will be reflected and refracted when it hits the surface of the module. In order to improve the conversion efficiency of the module, it is necessary to reduce the reflection loss as much as possible. There are currently two ways to reduce reflection. One is to increase the light transmittance of the surface packaging material of the module, and the other is to expand the absorption of the whole band of the packaging material on the surface of the module. chip conversion efficiency, etc. At present, the commonly used packaging materials are tem...

Claims

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Application Information

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IPC IPC(8): H01L31/048B32B27/30H02S40/34
CPCY02E10/50
Inventor 杨骞全余生龚双龙王金伟崔梅兰
Owner DONGFANG ELECTRIC YIXING MAGI SOLAR POWER TECH
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