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Ultraviolet-proof glass and application thereof in photovoltaic component

A technology of anti-ultraviolet and photovoltaic modules, which is applied in the field of glass and its applications, can solve the problems of affecting the normal operation of components, EVA performance degradation, slow degradation and aging, etc., to prolong the anti-ultraviolet aging time, good protection, and delay the yellowing of the film Effect

Inactive Publication Date: 2015-06-10
ZHEJIANG JINKO SOLAR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the long-term use of the packaged components, the EVA adhesive film will inevitably come into contact with ultraviolet light. Under the action of ultraviolet rays, oxygen and water vapor, the adhesive film will turn yellow and slowly degrade and age, resulting in a decline in EVA performance, which in turn affects normal operation of components

Method used

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  • Ultraviolet-proof glass and application thereof in photovoltaic component

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Effect test

Embodiment 1

[0012] Embodiment 1: a kind of anti-ultraviolet glass, by 70% SiO 2 , 1.5% Al 2 o 3 , 7% CaO, 3% K 2 O, 16.5% Na 2 O, 0.01% FeO, 0.01% Fe 2 o 3 And 1.98% of the UV-absorbing substance, the UV-absorbing substance is CeO 2 .

Embodiment 2

[0013] Embodiment 2: a kind of anti-ultraviolet glass, by 75% SiO 2 , 1% Al 2 o 3 , 5.5% CaO, 5% K 2 O, 11.5% Na 2 O, 0.01% FeO, 0.01% Fe 2 o 3 And 1.98% fluorescent substance, the fluorescent substance is Zn 3 P 2 .

Embodiment 3

[0014] Embodiment 3: a kind of anti-ultraviolet glass, by 85% SiO 2 , 0.5% Al 2 o 3 , 3.5% CaO, 0.5% K 2 O, 9%Na 2 O, 0.01% FeO, 0.01% Fe 2 o 3 And 1.48% of the ultraviolet absorbing substance, the ultraviolet absorbing substance is ZnO.

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Abstract

The invention discloses ultraviolet-proof glass and an application thereof in a photovoltaic component. In percentage by mass, the ultraviolet-proof glass consists of 65-85% of SiO2, 0.5-2% of Al2O3, 3.5-11% of CaO, 0.5-6% of K2O, 9-19% of Na2O, 0-0.01% of FeO, 0-0.01% of Fe2O3 and 0.01-2% of an ultraviolet absorbing material or fluorescent material. The ultraviolet-proof glass, when applied to the photovoltaic component, can be used as a cover plate of the photovoltaic component and the photovoltaic component using the ultraviolet-proof glass as a cover plate. The ultraviolet-proof glass disclosed by the invention can be used for effectively resisting ultraviolet ray; since the ultraviolet-proof glass is used as the cover plate of the photovoltaic component, and yellowing of an adhesive film in the component can be delayed and the ultraviolet-proof aging time of the component can be prolonged, so that the service life of the component is extended.

Description

technical field [0001] The invention relates to a glass and its application, in particular to an ultraviolet-resistant glass and its application in photovoltaic modules. Background technique [0002] At present, common crystalline silicon photovoltaic modules include multiple components such as glass cover plate, EVA (ethylene-vinyl acetate copolymer resin) sealant film, back film, etc., to encapsulate crystalline silicon cells, and each individual component has its own Specific functions to ensure that crystalline silicon cells have a relatively long service life while utilizing solar energy efficiently. Good encapsulation not only enables photovoltaic modules to have a certain power gain, but also enables the modules to work continuously and stably in extreme environments of high temperature, high humidity and high pressure. During the long-term use of the packaged components, the EVA adhesive film will inevitably come into contact with ultraviolet light. Under the action...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/08C03C4/12C03C3/087
Inventor 刘俊辉刘亚锋金浩陈康平
Owner ZHEJIANG JINKO SOLAR CO LTD