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Silicon solar module

A solar module, high heat dissipation technology, applied in electrical components, semiconductor devices, photovoltaic power generation, etc., can solve problems such as the impact of power generation efficiency, achieve the effect of increasing heat dissipation and heat conduction area, reducing requirements, and improving conversion efficiency

Inactive Publication Date: 2015-11-04
宁波贝达新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be known that the efficiency of solar modules is not only affected by the light efficiency, but also the temperature of the modules will have a greater impact on the power generation efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer (which can be a wafer or a thin layer, the same below), an EVA layer II, a back plate, a tempered glass layer, and its outer surface is also plated. Covered with a layer of anti-reflection film, the thickness of each layer of anti-reflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of the anti-reflection film is selected according to the process and actual product needs; EVA layer Ⅱ, which is a high heat dissipation and thermally stable modified EVA plastic layer coated with an oxygen barrier layer on the exposed surface; the back plate, which is a 2-layer structure, and the two-layer structure adjacent to the EVA layer Ⅱ is closely attached to each other; among them , the value of n is selected from 0, 1, 2, 3, 4, 5....

Embodiment 2

[0042] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer, an EVA layer II, a back plate, and a tempered glass layer. The thickness of the anti-reflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of the anti-reflection film is selected according to the process and actual product needs; EVA layer II, which is the exposed surface coated with oxygen barrier High heat dissipation thermal stability modified EVA plastic layer; back plate, which is a 3-layer structure, the two-layer structure adjacent to EVA layer II is closely attached to each other, and there is an average width between the third layer and the second layer A gap of 0.5mm (it can also be closely fitted); wherein, the value of n is selected from 0, 1, 2, 3, 4, 5....

Embodiment 3

[0044] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer, an EVA layer II, a back plate, and a tempered glass layer. The thickness of the antireflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of each layer of antireflection film is selected according to the process and actual product needs; EVA layer II, which is the exposed surface coating High heat dissipation thermally stable modified EVA plastic layer covered with an oxygen barrier layer; the back plate has a 4-layer structure, and the two-layer structure adjacent to the EVA layer II is closely attached to each other, and the third layer and the second layer There is a gap with an average width of 0.4mm between them (it can also be closely fitted), and there is a gap with an average width of 0.5mm between the third layer and the fourth layer (it can also be closely fitted); wherein, the value of n is sele...

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PUM

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Abstract

The invention discloses a silicon solar module. The silicon solar module comprises a tempered glass layer, an EVA (ethylene-vinyl acetate copolymer) layer I, a silicon layer, an EVA layer II and a backboard, wherein the external surface of the tempered glass layer is plated with at least one antireflection film layer, thickness of each antireflection film layer is d, and d=(n+0.25)lambda, wherein lambda=400-760nm; the EVA layer II is a thermally stable modified EVA plastic layer with high heat dissipation rate; and the backboard is a multi-layer structure. The silicon solar module has steady structure, high solar utilization efficiency and high power generation efficiency, and also has good heat dissipating performance.

Description

technical field [0001] The invention relates to a semiconductor solar photovoltaic device component, especially a silicon solar component. Background technique [0002] Solar cell module is a device that directly converts sunlight energy into electrical energy due to the photovoltaic effect. Solar energy is a new type of energy with three advantages of permanence, cleanliness and flexibility. The solar cell module has a relatively long life. It is mainly composed of low-iron ultra-clear tempered glass, EVA film, crystalline silicon solar cell array and backsheet, which are fused and bonded under certain temperature, pressure and vacuum conditions to form a rigid overall structure. Considering the actual use effect of solar cell modules, the power output per unit area has become one of the important parameters for evaluating photovoltaic modules. At the same time, considering factors such as the shortage of monocrystalline silicon and polycrystalline silicon raw materials, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCY02E10/50H01L31/0481H01L31/048
Inventor 陈东波曾宏葛元磊
Owner 宁波贝达新能源科技有限公司
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