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Photovoltaic assembly and photovoltaic power generating system

A photovoltaic module and light-receiving surface technology, which is applied in the field of solar cells, can solve the problems of insufficient bonding force between the single-layer anti-reflection film layer and the substrate, low anti-reflection performance of the anti-reflection film layer, and single control means, so as to reduce internal stress , Reduce insulation, good anti-reflection effect

Inactive Publication Date: 2017-03-15
江苏神科新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the single-layer anti-reflection film is easy to produce, the bonding force between the single-layer anti-reflection film obtained by this method and the substrate is not strong enough, and it is easy to cause the film layer to fall off when used in harsh natural environments. The anti-reflection performance of the reflective film layer is low, and the control method of its anti-reflection characteristics is single

Method used

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  • Photovoltaic assembly and photovoltaic power generating system
  • Photovoltaic assembly and photovoltaic power generating system
  • Photovoltaic assembly and photovoltaic power generating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] On the surface of a glass substrate with a thickness of 3mm, magnetron sputtering deposits a 20nm silicon oxide film layer as the first barrier layer 8; then, a 10nm Nb-doped titanium dioxide film is deposited on the silicon oxide film layer by magnetron sputtering layer as a conductive film layer 9; then on the Nb-doped titanium dioxide film layer, magnetron sputtering is used to deposit a 110nm silicon oxide film layer as a silicon-containing hydrophilic film layer 10; then the glass deposited with the above film layer is tempered and heat-treated , the tempered heat-treated glass is used as the cover glass 1 of the photovoltaic module, and the film layer on the surface of the tempered glass faces the light-receiving surface of the photovoltaic module, and at the same time, the metal frame 5 of the photovoltaic module is in contact with the Nb-doped titanium dioxide film layer 9 , thus forming the photovoltaic module of the present invention.

Embodiment 2

[0048] On the surface of a glass substrate with a thickness of 4mm, magnetron sputtering deposits a 25nm silicon oxynitride film layer as the first barrier layer 8; then adopts magnetron sputtering to deposit 15nm Ta-doped Titanium dioxide film layer is as conductive film layer 9; Then adopt magnetron sputtering to deposit 110nm silicon oxide film layer on Ta-doped titanium dioxide film layer as silicon-containing hydrophilic film layer 10; Then the glass that will be deposited with above-mentioned film layer is carried out Tempering heat treatment, the glass after tempering heat treatment is used as the cover glass 1 of the photovoltaic module, and the film layer on the surface of the tempered glass faces the light-receiving surface of the photovoltaic module, and at the same time, the metal frame 5 of the photovoltaic module and the Ta-doped titanium dioxide film layer 9 contact, thereby forming the photovoltaic module of the present invention.

Embodiment 3

[0050] On the surface of a glass substrate with a thickness of 4mm, magnetron sputtering deposits a 10nm zirconia film layer as the first barrier layer 8; then, a 5nm W-doped titanium dioxide film is deposited on the zirconia film layer by magnetron sputtering layer as a conductive film layer 9; then on the W-doped titanium dioxide film layer, a 105nm silicon oxide film layer is deposited by magnetron sputtering as a silicon-containing hydrophilic film layer 10; then the glass deposited with the above film layer is tempered and heat-treated , the tempered heat-treated glass is used as the cover glass 1 of the photovoltaic module, and the film layer on the surface of the tempered glass faces the light-receiving surface of the photovoltaic module, and at the same time, the metal frame 5 of the photovoltaic module is in contact with the W-doped titanium dioxide film layer 9 , thus forming the photovoltaic module of the present invention.

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Abstract

The invention relates to the solar cell technology field, and discloses a photovoltaic assembly. The photovoltaic assembly comprises a photovoltaic assembly comprising two surfaces, namely a light receiving surface and a back surface. The light receiving surface of the photovoltaic assembly body is provided with a first barrier layer in a covered manner, and the first barrier layer is provided with a conductive film layer in a covered manner. The conductive film layer is provided with a silicon-containing hydrophilic film layer in a covered manner, and is a doped titanium dioxide film layer, a doped stannic oxide film layer, or the combination of the above mentioned two film layers. The invention also discloses a photovoltaic power generating system. By additionally providing the conductive film layer in a covered manner, the surface of the photovoltaic assembly is provided with an antistatic function, and therefore dust particles deposited on the surface of the assembly because of electrostatic interaction is prevented, and at the same time, a certain quantity of middle-far infrared rays are reflected by the conductive film layer, and the too fast rising of the temperature of the photovoltaic assembly is inhibited, and the power generating capacity of the photovoltaic assembly is increased.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a photovoltaic module and a photovoltaic power generation system. Background technique [0002] Solar cells can directly convert sunlight into electricity, so as a new energy source, more and more countries pay attention to it. [0003] figure 1 A traditional photovoltaic module is shown, which is composed of a cover glass 1, a back plate 2, a sealant layer 3, a solar cell 4, a metal frame 5 and a grounding device 6, and the solar cell 4 is sealed on the cover plate by the sealant layer 3 Between the glass 1 and the back plate 2, and then set it in the metal frame 5, the metal frame 5 is grounded through the grounding device 6, the traditional photovoltaic module is installed outdoors, exposed to the air for a long time, affected by the atmosphere, wind and sand and other bad weather, set A layer of dust and dirt is often deposited on the surface of the topmost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/0216
CPCH01L31/02167H01L31/02168H01L31/048Y02E10/50
Inventor 李艺明邓国云李浩
Owner 江苏神科新能源有限公司
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