CN103270193A - 光电模块的背面覆盖件 - Google Patents

光电模块的背面覆盖件 Download PDF

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CN103270193A
CN103270193A CN2011800588959A CN201180058895A CN103270193A CN 103270193 A CN103270193 A CN 103270193A CN 2011800588959 A CN2011800588959 A CN 2011800588959A CN 201180058895 A CN201180058895 A CN 201180058895A CN 103270193 A CN103270193 A CN 103270193A
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CN103270193B (zh
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S·施米特
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Duraproof Technologies GmbH
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Abstract

本发明涉及一种用于在光电模块的背离光入射侧的一侧上密封光电模块的覆盖件，其中，所述覆盖件（4）包括薄膜（7），所述薄膜与光电模块的包含光敏元件（2）的层（1）连接。根据本发明，薄膜（7）由弹性体材料制成。优选涉及均一地由这种材料、尤其是EPDM制成的薄膜。

Description

光电模块的背面覆盖件
技术领域
本发明涉及一种用于在光电模块的背离光入射侧的一侧上密封光电模块的覆盖件，其中，所述覆盖件包括薄膜，所述薄膜与光电模块的包含光敏元件的层连接。
背景技术
长期在户外运行的光电模块要满足多重要求。除了大气影响和紫外线照射，所述光电模块也必须抵抗由于空气污染的化学作用。大气影响除了通过湿气引起的负担外，也有由于风或冰雹造成的高机械负荷。因此光电模块的包含光敏元件的部分必须满足许多不同的要求，即所述部分必须对于紫外线或化学影响有足够的抵抗力，具有足够的机械强度，构成湿气阻挡、尤其是雾气屏障，并且最后足够地电绝缘。为了满足这许多要求，传统的用于密封光电模块的覆盖件具有以复杂的、多附层的结构的薄膜。
发明内容
本发明的任务在于，进一步简化光电模块的制造。
该任务通过开头提及的类型的用于背面密封的覆盖件解决，其特征在于，薄膜由弹性体材料制成。
出人意料地表明，仅需要唯一的由弹性体材料制成的作为覆盖件起作用的附层，以满足上面提到的许多要求。光电模块的构造相应地简化。
在本发明的一种特别优选的实施形式中，薄膜均一地由唯一一种弹性体材料制成。所述弹性体材料也可包括热塑性弹性体。
所述弹性体材料优选是EPDM（三元乙丙橡胶）。
适宜地，薄膜预制有用于与包含光敏元件的芯层连接的附层，所述连接尤其是焊接。
连接附层连续地施加到整个薄膜上并且与薄膜连接。优选，所述连接附层是聚乙烯附层，该聚乙烯附层构成附加的雾气屏障。
在本发明的一种特别优选的实施形式中，通过硫化与连接附层相接触的薄膜，所述连接附层附着在该薄膜上。这意味着，连接附层本身以薄膜形式施加到尚未硫化的薄膜上。在硫化薄膜的过程中形成牢固的连接。
在本发明的进一步设计中，薄膜的电导率通过以无机的不导电的填料代替弹性体混合物的碳黑成分而减小。
适宜地，薄膜的厚度处于0.6mm与1.3mm之间。优选，所述连接附层的厚度为100μm至300μm。
附图说明
接着借助实施例和与实施例有关的附图进一步解释本发明。在附图中：
图1在剖视图中示出带有按照本发明的覆盖件的光电模块；
图2在对背面的俯视图中示出光电模块的部分视图；
图3示出在图1的光电模块中使用的覆盖件的横截面的部分视图。
具体实施方式
由多层构造成的光电模块包括芯层1，在封闭薄膜9和10之间的部分串联部分并联联接的、将射入的光转换成电能的光敏元件2嵌入该芯层中。芯层1在光入射侧上通过由透光材料、例如玻璃制成的层3覆盖。在背离层3的一侧上，光电模块具有在背面密封芯层1的覆盖件4，连接导线5延伸通过该覆盖件。
框架状包围的边缘框6用于在边缘侧密封光电模块。块状的光电模块的边缘侧长度在该实施例中为0.6m×1.2m。
在图3中局部分开示出的覆盖件4包括由弹性体材料制成的薄膜7。在所示实施例中，该弹性体材料为EPDM。
覆盖件4预制有连接附层8，该连接附层在薄膜7上、在该薄膜的整个面向芯层1的面上附着，并且优选由不透雾气的（dampfundurchlaessig）聚乙烯制成。连接附层8在薄膜7上的附着基于，连接附层8以薄膜的形式敷设到还未硫化的薄膜7上，并且与构成连接附层8的薄膜相接触的薄膜7被硫化。
通过连接附层8，覆盖件4全平面地与芯层1焊接。在芯层1方面，在背面封闭芯层1的封闭薄膜9用于焊接接合。
芯层1可与透光的层3粘接。
上述的光电模块利用其背面的、由弹性体材料制造的覆盖件4满足了所有的与在户外持续运行的模块相关的要求。

Claims (10)

1.用于在光电模块的背离光入射侧的一侧上密封光电模块的覆盖件（4），其中，所述覆盖件（4）包括薄膜（7），所述薄膜与光电模块的包含光敏元件（2）的层（1）连接，其特征在于，薄膜（7）由弹性体材料制成。
2.按照权利要求1所述的覆盖件，其特征在于，薄膜（7）均一地由一种弹性体材料制成。
3.按照权利要求1或2所述的覆盖件，其特征在于，薄膜（7）由EPDM制成。
4.按照权利要求1至3中任一项所述的覆盖件，其特征在于，薄膜（7）预制有用于与包含光敏元件（2）的芯层（1）连接的附层（8），所述连接尤其是焊接。
5.按照权利要求4所述的覆盖件，其特征在于，所述连接附层（8）在整个薄膜上连续地附着在薄膜（7）上。
6.按照权利要求4或5所述的覆盖件，其特征在于，所述连接附层（8）是聚乙烯附层。
7.按照权利要求4至6中任一项所述的覆盖件，其特征在于，通过硫化与连接附层（8）相接触的薄膜（7），所述连接附层（8）附着在该薄膜（7）上。
8.按照权利要求1至7中任一项所述的覆盖件，其特征在于，薄膜（7）的电导率通过以不导电的无机填料代替弹性体混合物的碳黑成分而减小。
9.按照权利要求1至8中任一项所述的覆盖件，其特征在于，薄膜的厚度在0.6mm与1.3mm之间。
10.按照权利要求4至9中任一项所述的覆盖件，其特征在于，所述连接附层的厚度处于100μm与300μm之间。
CN201180058895.9A 2010-12-07 2011-12-06 光电模块的背面覆盖件 Expired - Fee Related CN103270193B (zh)

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PCT/EP2011/006088 WO2012076146A1 (de) 2010-12-07 2011-12-06 Rückseitenabdeckung eines photovoltaikmoduls

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CN101512780A (zh) * 2006-08-30 2009-08-19 纳幕尔杜邦公司 含涂聚(烯丙胺)和聚(乙烯胺)底漆的聚酯膜的太阳能电池模块
CN101542746A (zh) * 2006-12-04 2009-09-23 纳幕尔杜邦公司 包括使用具有低结块趋势的某种聚(乙烯醇缩丁醛)/薄膜双层封装层的太阳能电池及其简化的制备方法
WO2009017552A1 (en) * 2007-07-30 2009-02-05 Brp Manufacturing Company Encapsulant materials and associated devices

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