CN207474483U - 柔性光伏组件 - Google Patents

柔性光伏组件 Download PDF

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CN207474483U
CN207474483U CN201721723574.7U CN201721723574U CN207474483U CN 207474483 U CN207474483 U CN 207474483U CN 201721723574 U CN201721723574 U CN 201721723574U CN 207474483 U CN207474483 U CN 207474483U
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adhesive linkage
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photovoltaic component
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胡鹏臣
吴建清
刘俐兵
李涛
易珊
王溢欢
黄昭雄
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Miasole Equipment Integration Fujian Co Ltd
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    • H—ELECTRICITY
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Abstract

本实用新型公开了一种柔性光伏组件，从上至下依次包括前板、电池片和背板，其中，电池片包括PET基薄膜层，PET基薄膜层设置在电池片靠近前板的一侧，PET基薄膜层包括第一粘接层，第一粘接层设置在PET基薄膜层靠近前板的一侧；背板包括第二粘接层，第二粘接层设置在背板靠近电池片的一侧。本实用新型避免了在加工柔性光伏组件过程中，需要设置上层封装胶膜和下层封装胶膜的工艺过程，而是采用在制作电池片阶段，使用具有较厚第一粘接层的PET基薄膜层代替原有的上层封装胶膜，在制作背板过程中，在背板上集成第二粘接层，从而避免采用单独的下层封装胶膜，达到简化层压柔性光伏组件的工艺的目的，同时降低了设备和人力成本。

Description

柔性光伏组件
技术领域
本实用新型涉及太阳能电池技术领域，尤其涉及一种柔性光伏组件。
背景技术
柔性太阳能电池以其重量轻、易安装更换和形状可适应性强等优点，成为当前的主流太阳能电池。
目前，柔性光伏组件的组成从下至上依次包括：背板、铝背板、边缘密封丁基胶、下层封装胶膜、汇流条/二极管、上层封装胶膜和前板，其中上层封装胶膜和下层封装胶膜的厚度均为200至400微米。目前的柔性光伏组件由于采用上层封装胶膜和下层封装胶膜两层封装，增加了工艺的复杂性，导致设备和人力成本增加。
实用新型内容
本实用新型的目的在于提供一种柔性光伏组件，以解决上述问题，简化柔性光伏组件加工工艺，降低设备和人力成本。
本实用新型提供了一种柔性光伏组件，所述柔性光伏组件从上至下依次包括前板、电池片和背板；
所述电池片包括PET基薄膜层，所述PET基薄膜层设置在所述电池片靠近所述前板的一侧，所述PET基薄膜层包括第一粘接层，所述第一粘接层设置在所述PET基薄膜层靠近所述前板的一侧；
所述背板包括第二粘接层，所述第二粘接层设置在所述背板靠近所述电池片的一侧。
如上所述的柔性光伏组件，其中，优选的是，所述电池片还包括依次设置在所述PET基薄膜层之下的铜电极绕线层、PN结多层薄膜层和柔性衬底，所述柔性衬底设置在所述电池片靠近所述背板的一侧。
如上所述的柔性光伏组件，其中，优选的是，所述柔性衬底为金属箔衬底。
如上所述的柔性光伏组件，其中，优选的是，所述柔性衬底由Fe、Ni、Cu、Al、W、Mo中的一种或多种材质制成。
如上所述的柔性光伏组件，其中，优选的是，所述PET基薄膜层还包括设置在所述第一粘接层之下的第一PET层和第三粘接层；所述第三粘接层设置在所述PET基薄膜层靠近所述铜电极绕线层的一侧。
如上所述的柔性光伏组件，其中，优选的是，所述背板还包括依次设置在所述第二粘接层之下的第二PET层、铝箔层和第三PET层，所述第二PET层设置在所述背板远离所述电池片的一侧。
如上所述的柔性光伏组件，其中，优选的是，所述第一粘接层为树脂粘接层。
如上所述的柔性光伏组件，其中，优选的是，所述第二粘接层为EVA材料层、PVB材料层、POE材料层或热塑性有机硅层中的一种。
如上所述的柔性光伏组件，其中，优选的是，所述第一粘接层和所述第二粘接层的厚度均为100至150微米。
本实用新型提供的柔性光伏组件，从上至下依次包括前板、电池片和背板，其中，电池片包括PET基薄膜层，PET基薄膜层设置在电池片靠近前板的一侧，PET基薄膜层包括第一粘接层，第一粘接层设置在PET基薄膜层靠近前板的一侧；背板包括第二粘接层，第二粘接层设置在背板靠近电池片的一侧。本实用新型避免了在加工柔性光伏组件过程中，需要设置上层封装胶膜和下层封装胶膜的工艺过程，而是采用在制作电池片阶段，使用具有较厚第一粘接层的PET基薄膜层代替原有的上层封装胶膜，在制作背板过程中，在背板上集成第二粘接层，从而避免采用单独的下层封装胶膜，达到简化层压柔性光伏组件的工艺的目的，同时降低了设备和人力成本。
附图说明
图1为本实用新型实施例提供的柔性光伏组件的结构示意图；
图2为本实用新型实施例提供的柔性光伏组件的电池片的结构示意图；
图3为本实用新型实施例提供的柔性光伏组件的PET基薄膜层的结构示意图；
图4为本实用新型实施例提供的柔性光伏组件的背板的结构示意图。
附图标记说明：
10-前板 20-电池片 21-PET基薄膜层
211-第一粘接层 212-第一PET层 213-第三粘接层
22-铜电极绕线层 23-PN结多层薄膜层 24-柔性衬底
30-背板 31-第二粘接层 32-第二PET层
33-铝箔层 34-第三PET层
具体实施方式
下面详细描述本实用新型的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本实用新型，而不能解释为对本实用新型的限制。
注释：PET为聚对苯二甲酸乙二醇酯的简称；EVA为聚乙烯-聚醋酸乙烯酯共聚物的简称；PVB为聚乙烯醇缩丁醛薄膜的简称；POE为聚烯烃类弹性体树脂的简称。
本实用新型实施例提供的柔性光伏组件，从上至下依次包括前板10、电池片20和背板30。
其中，电池片20包括PET基薄膜层21，PET基薄膜层21设置在电池片20靠近前板10的一侧，PET基薄膜层21包括第一粘接层211，第一粘接层211设置在PET基薄膜层21靠近前板10的一侧；背板30包括第二粘接层31，第二粘接层31设置在背板30靠近电池片20的一侧。
优选地，前板10可以采用改性聚对苯二甲酸乙二醇酯(PET)，或者含氟聚合物，例如乙烯-四氟乙烯共聚物(ETFE)、乙烯-三氟氯乙烯共聚物(ECTFE)、全氟乙烯-丙烯共聚物(FEP)或者聚偏氟乙烯(PVDF)等具有高光学透过率、低水汽透过率以及优异抗紫外辐射特性的高分子材料。
本实用新型实施例提供的柔性光伏组件，在电池片20上集成第一粘接层211，用以粘接电池片20和前板10，在背板30上集成第二粘接层31，用以粘接背板30和电池片20。与现有技术相比，避免了在加工柔性光伏组件过程中，需要设置上层封装胶膜和下层封装胶膜的工艺过程，而是采用在制作电池片20阶段，使用具有较厚第一粘接层211的PET基薄膜层21代替原有的上层封装胶膜；在制作背板30过程中，在背板30上集成第二粘接层31，代替原有的下层封装胶膜，从而避免采用单独的下层封装胶膜，达到简化加工柔性光伏组件的工艺的目的，同时降低了设备和人力成本。
具体地，电池片20从上至下依次包括PET基薄膜层21、铜电极绕线层22、PN结多层薄膜层23和柔性衬底24，其中，柔性衬底24设置在靠近背板30的一侧。加工时，PET基薄膜层21预压在铜电极绕线层22上形成一个复合结构层，该复合结构层在后续制作电池片20的过程中，直接与PN结多层薄膜层23和柔性衬底24层压即可形成电池片20。
上述PET基薄膜层21从上至下依次包括第一粘接层211、第一PET层212和第三粘接层213。第一粘接层211为树脂粘接层，且厚度优选为100至150微米；第一PET层212厚度优选为50微米；第三粘接层213为树脂粘接层，厚度优选为25微米。
进一步地，PN结多层薄膜层23从上至下依次包括前电极层、窗口层或缓冲层、吸收层和背电极，并且前电极层靠近PET基薄膜层21一侧，背电极层靠近柔性衬底24一侧。
更进一步地，柔性衬底24为金属箔衬底，优选为由Fe、Ni、Cu、Al、W、Mo中的一种或多种材质制成。
具体地，背板30从上至下依次包括第二粘接层31、第二PET层32、铝箔层33和第三PET层34，第三PET层34设置在背板30远离电池片20的一侧。其中，第二粘接层31为EVA材料层、PVB材料层、POE材料层或热塑性有机硅层中的一种，且厚度优选为100至150微米，第二粘接层31为背板30与电池片20之间提供了足够的粘接力，保证柔性光伏组件的结构强度；第二PET层32厚度优选为150至250微米，第二PET层32保证了柔性光伏组件内部的导电部分与外界的良好绝缘；铝箔层33的厚度优选为20至50微米，该铝箔层33保证了背板30具有优异的阻水性能；第三PET层34采用高耐候性PET材料制成。
相比于传统的背板30，该种集成式的背板30就简化了生产工艺。节省了原材料，降低了生产成本。对于柔性光伏组件而言，集成式的背板30降低了工艺的复杂性，降低了成本，同时更有利于自动化的实现。
以上依据图式所示的实施例详细说明了本实用新型的构造、特征及作用效果，以上仅为本实用新型的较佳实施例，但本实用新型不以图面所示限定实施范围，凡是依照本实用新型的构想所作的改变，或修改为等同变化的等效实施例，仍未超出说明书与图示所涵盖的精神时，均应在本实用新型的保护范围内。

Claims (9)

1.一种柔性光伏组件，其特征在于，所述柔性光伏组件从上至下依次包括前板、电池片和背板；
所述电池片包括PET基薄膜层，所述PET基薄膜层设置在所述电池片靠近所述前板的一侧，所述PET基薄膜层包括第一粘接层，所述第一粘接层设置在所述PET基薄膜层靠近所述前板的一侧；
所述背板包括第二粘接层，所述第二粘接层设置在所述背板靠近所述电池片的一侧。
2.根据权利要求1所述的柔性光伏组件，其特征在于，所述电池片还包括依次设置在所述PET基薄膜层之下的铜电极绕线层、PN结多层薄膜层和柔性衬底，所述柔性衬底设置在所述电池片靠近所述背板的一侧。
3.根据权利要求2所述的柔性光伏组件，其特征在于，所述柔性衬底为金属箔衬底。
4.根据权利要求2所述的柔性光伏组件，其特征在于，所述柔性衬底由Fe、Ni、Cu、Al、W、Mo中的一种或多种材质制成。
5.根据权利要求2所述的柔性光伏组件，其特征在于，所述PET基薄膜层还包括设置在所述第一粘接层之下的第一PET层和第三粘接层；所述第三粘接层设置在所述PET基薄膜层靠近所述铜电极绕线层的一侧。
6.根据权利要求1所述的柔性光伏组件，其特征在于，所述背板还包括依次设置在所述第二粘接层之下的第二PET层、铝箔层和第三PET层，所述第二PET层设置在所述背板远离所述电池片的一侧。
7.根据权利要求1-6中任一项所述的柔性光伏组件，其特征在于，所述第一粘接层为树脂粘接层。
8.根据权利要求1-6中任一项所述的柔性光伏组件，其特征在于，所述第二粘接层为EVA材料层、PVB材料层、POE材料层或热塑性有机硅层中的一种。
9.根据权利要求1-6中任一项所述的柔性光伏组件，其特征在于，所述第一粘接层和所述第二粘接层的厚度均为100至150微米。
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CN113910695A (zh) * 2020-07-07 2022-01-11 刘勇 一种轻质柔性组件及其安装方法和光伏建筑

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CN115966622A (zh) 2021-09-28 2023-04-14 黄耀纶 光伏电池组件及其制造方法
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