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Solar photovoltaic module

A solar photovoltaic and module technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of affecting the reflection effect of the mirror reflection part, the reflection effect is not good, and the power generation efficiency is reduced, so as to improve the heat reflectivity and radiation insulation The effect of improving power generation efficiency and improving the effect of use

Active Publication Date: 2016-08-24
广东大粤新能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The photovoltaic backplane of the off-voltage module includes a specular reflection part covered by the cells and a diffuse reflection part located in the gap between the cells. Therefore, the light enters from the glass layer, and the light incident on the cells is utilized and partially penetrates. The light from the battery sheet is reflected by the photovoltaic backplane and reused, thereby improving the power generation efficiency of the photovoltaic module, but the reflection effect of the specular reflection part formed only on the backplane 5 is not good, and it is located between the backplane and the back layer of glue. Between the films, the adhesive film of the back layer tends to overflow to the front of the mirror reflection part, forming a partial occlusion, affecting the reflection effect of the mirror reflection part 51 and reducing the power generation efficiency

Method used

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  • Solar photovoltaic module

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Effect test

Embodiment 1

[0020] refer to figure 1 , this embodiment discloses a solar photovoltaic module, which includes a glass layer 1, several cells 2 arranged in a spaced array, and a photovoltaic backplane 3 from top to bottom, the glass layer 1, several cells 2 arranged in a spaced array, and a photovoltaic backplane 3 The backplanes 3 are bonded together by EVA adhesive film 4, the bottom surface of the photovoltaic backplane 1 is provided with a layer of reflective heat insulation layer 5, and the bottom is provided with a reflective heat insulation layer, so that part of the light that penetrates the battery sheet After being reflected by the reflective heat insulation layer at the bottom of the photovoltaic backplane, it is used again to improve the photoelectric conversion efficiency, thereby improving the power generation efficiency of the photovoltaic module. The phenomenon that overflows to the front of the specular reflection layer, forms partial occlusion, and affects the reflection o...

Embodiment 2

[0026]The structure of the solar photovoltaic module in this embodiment is the same as that of the previous embodiment, except that the reflective heat insulation layer includes the following raw materials in parts by weight: 25 parts by weight of organic silicon powder, 100 parts by weight of reflective powder, and 45 parts by weight of fluorescent powder , 25 parts by weight of acrylic acid powder, 20 parts by weight of modified phenolic resin, 40 parts by weight of borosilicate glass beads, 10 parts by weight of dispersant, 55 parts by weight of water, 200 parts by weight of pure acrylate elastic emulsion, 15 parts by weight of auxiliary materials .

[0027] The reflective powder is composed of the following raw materials by weight: 35 parts by weight of copper oxide powder, 40 parts by weight of silicon rubber, 100 parts by weight of titanium dioxide, 45 parts by weight of far-infrared ceramic powder, and 55 parts by weight of manganese dioxide.

[0028] The auxiliary mate...

Embodiment 3

[0029] Embodiment 3: The structure of the solar photovoltaic module in this embodiment is the same as that of the previous embodiment, except that the reflective heat insulation layer includes the following raw materials in parts by weight: 23 parts by weight of organic silicon powder, 95 parts by weight of reflective powder, fluorescent Powder 38 parts by weight, acrylic acid powder 22 parts by weight, polyvinyl alcohol phenolic modified phenolic resin 18 parts, borosilicate glass beads 38 parts by weight, dispersant 8 parts by weight, water 52 parts by weight, pure acrylate elastic emulsion 180 parts, 12 parts by weight of auxiliary materials.

[0030] The reflective powder is composed of the following raw materials in parts by weight: 28 parts by weight of copper oxide powder, 35 parts by weight of silicon rubber, 90 parts by weight of titanium dioxide, 40 parts by weight of far-infrared ceramic powder, and 42 parts by weight of manganese dioxide.

[0031] The auxiliary mat...

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Abstract

The invention provides a solar photovoltaic module capable of improving photon utilization ratio and output power. The solar photovoltaic module comprises a glass layer, multiple battery pieces arranged at intervals and a photovoltaic back plate which are arranged from the upper to lower, wherein the glass layer, the multiple battery pieces arranged at intervals and the photovoltaic back plate are connected together through an EVA adhesive film; a reflective thermal-insulating layer is arranged on the bottom surface of the photovoltaic back plate; accommodating grooves are formed in the upper surface, corresponding to the positions of the battery pieces respectively, of the reflective thermal-insulating layer; and fluorescent powder is arranged in the accommodating grooves.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a solar photovoltaic module. Background technique [0002] Solar photovoltaic power generation system (referred to as photovoltaic) is a system that uses the photovoltaic effect to directly convert sunlight energy into electrical energy. The main component of its photoelectric conversion is a crystalline silicon photovoltaic cell. When the sun shines on the crystalline silicon photovoltaic cell, Crystalline silicon photovoltaic cells will convert the sun's light energy into electrical energy and generate electric current. At present, a photovoltaic module mainly includes a glass layer, a front layer of adhesive film, a number of cells arranged in a spaced array, a rear layer of adhesive film, and a photovoltaic backplane. Photovoltaic backsheets are glued together in turn. In order to improve the power generation efficiency of photovoltaic modules, it is necessary to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/0216H01L31/054H01L31/052
CPCY02E10/52H01L31/048H01L31/02168H01L31/052H01L31/054
Inventor 徐楚玚徐晖刘汉林曹宏州杨海映徐张弛郑珊珊黎志萍林家成桑嗣文田刘
Owner 广东大粤新能源科技股份有限公司
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