WO2021008634A1 - 叠瓦组件的制造方法及叠瓦组件 - Google Patents
叠瓦组件的制造方法及叠瓦组件 Download PDFInfo
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Abstract
Description
Claims (36)
- 一种制造叠瓦组件的方法,所述叠瓦组件包括底侧封装结构、顶侧封装结构和固定在所述底侧封装结构和所述顶侧封装结构之间的电池片阵列,其特征在于,所述方法包括如下步骤:将太阳能电池片和导电片在底侧封装结构的顶表面上沿第二方向以叠瓦方式排列成多个电池串,使所述导电片位于所述电池串的末端,各个所述太阳能电池片之间通过主栅线之间的接触而实现导电连接,所述导电片和与其相邻的太阳能电池片的主栅线接触,各个所述太阳能电池片和所述导电片之间通过粘结剂而相对于彼此固定,各个所述电池串沿垂直于第二方向的第一方向排布而形成电池片阵列;在所述电池片阵列的顶侧设置第一汇流条和第二汇流条,或者在所述电池片阵列的底侧设置第一汇流条和第二汇流条,以使得所述第一汇流条与各个所述电池串的首端的所述太阳能电池片的主栅线电接触,所述第二汇流条与各个所述电池串的所述导电片电接触,所述两个汇流条均为连续的条状结构并能够从所述电池片阵列收集电流并将电流向外导出;对所述顶侧封装结构、所述电池片阵列和所述底侧封装结构的组合结构进行层压。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括如下步骤:在每一个所述电池串的首端的所述太阳能电池片的顶表面上设置第一导电粘结结构,以使所述第一导电粘结结构和所述首端的太阳能电池片的主栅线直接接触;在每一个所述导电片的顶表面上设置第二导电粘结结构,其中,相邻的电池串的对应的导电粘结结构在第一方向上间隔开,并且,所述顶侧封装结构包括顶板,所述第一汇流条和所述第二汇流条被施加在所述顶板的底表面上,并使得所述第一汇流条和所述第二汇流条在垂直于所述电池片阵列的方向上与和各个对应的导电 粘结结构对齐,以使得所述汇流条能够同时接触所有所述电池串的对应的导电粘结结构。
- 根据权利要求2所述的方法,其特征在于,所述顶侧封装结构还包括设置在所述顶板和所述电池片阵列之间的顶侧柔性膜,所述方法还包括:在所述顶侧柔性膜上设置与所述导电粘结结构对应的孔,以使所述导电粘结结构能够透过所述孔而与所述汇流条接触。
- 根据权利要求3所述的方法,其特征在于,施加第一导电粘结结构和第二导电粘结结构的步骤发生于在所述电池片阵列上设置所述顶侧柔性膜之后,施加第一导电粘结结构和第二导电粘结结构的步骤为:在所述顶侧导电膜上施加导电粘结材料,以使所述导电粘结透过所述孔而流至所述电池片阵列的顶表面上并在此凝结为第一导电粘结结构和第二导电粘结结构。
- 根据权利要求2所述的方法,其特征在于,通过点胶、涂抹、喷涂、印刷中的其中一种方式施加所述导电粘结结构。
- 根据权利要求1所述的方法,其特征在于,所述第一汇流条和所述第二汇流条设置在所述电池片阵列上,其中所述第一汇流条设置在所有所述电池串的首端的所述太阳能电池片的顶表面上并将其接触的各个太阳能电池片的主栅线连接起来,连接方式可以是导电粘结结构或者焊接,所述第二汇流条设置在各个所述导电片的顶表面上并将各个所述导电片连接起来,连接方式可以是导电粘结结构或者焊接。
- 根据权利要求1所述的方法,其特征在于,所述方法包括施加粘结剂的步骤,所述施加粘结剂的步骤包括:在每一个所述太阳能电池片和所述导电片上施加粘结剂,以当所述太阳能电池片排列成电池串时所述粘结剂位于每一对相邻的太阳能电池片和导电片之间。
- 根据权利要求7所述的方法,其特征在于,所述方法还包括如下步骤:在施加粘结剂时通过相机检测施加粘结剂的质量,并根据检测结果剔除未正确施加粘结剂的太阳能电池片。
- 根据权利要求8所述的方法,其特征在于,所述检测步骤对施加粘结剂的步骤同时进行且所述检测步骤能够对施加粘结剂的步骤 进行闭环反馈。
- 根据权利要求7所述的方法,其特征在于,所述方法包括如下步骤:设置太阳能电池片整片;在所述太阳能电池片整片上激光刻槽并施加粘结剂;将所述太阳能电池片整片裂片为多个太阳能电池片。
- 根据权利要求7所述的方法,其特征在于,所述方法包括如下步骤:设置太阳能电池片整片;在所述太阳能电池片整片上激光刻槽;将所述太阳能电池片整片裂片为多个太阳能电池片;在每一个所述太阳能电池片上施加粘结剂。
- 根据权利要求7所述的方法,其特征在于,在将所述太阳能电池片叠片成电池串的过程中对所述太阳能电池片之间的重叠部位施加热和/或压力,从而使此处的粘结剂固化。
- 根据权利要求1所述的方法,其特征在于,所述底侧封装结构包括底板和位于所述底板和所述电池片阵列之间的底侧柔性膜,所述方法还包括在将太阳能电池片排布在所述底侧封装结构之前在所述底侧柔性膜的顶表面上施加粘结剂的步骤。
- 根据权利要求13所述的方法,其特征在于,所述施加粘结剂的步骤包括:在所述底侧柔性膜的顶表面上施加多组点状粘结剂,使每一组所述点状粘结剂对应于一个所述电池串,每一组所述点状粘结剂均包括一排或多排点状结构,所述点状粘结剂均沿所述第二方向依次排列并用于分别和该电池串中的每一个所述太阳能电池片的底表面的接合。
- 根据权利要求1所述的方法,其特征在于,所述方法包括在将所述太阳能电池片在所述底侧封装结构上排列成电池串之后的施加粘结剂的步骤,所述施加粘结剂的步骤包括:在每一个所述电池串上沿第二方向施加条状粘结剂以使所述条状粘结剂跨越在该电池串 上。
- 根据权利要求1所述的方法,其特征在于,将所述太阳能电池片排列成电池串以及将电池串排列成电池片阵列的步骤通过静电或真空吸附的方法完成。
- 根据权利要求1所述的方法,其特征在于,在将所述太阳能电池片排列成电池串的过程中通过相机检测叠片质量,并将检测结果实时地反馈至监控平台。
- 根据权利要求17所述的方法,其特征在于,制造系统中还包括控制装置,所述控制装置和所述检测机构相关联从而能够基于所述检测机构的检测结果对叠片作业机构进行控制。
- 根据权利要求1所述的方法,其特征在于,在层压步骤前采用EL电致发光或PL光致发光对待层压件进行缺陷检测,若检测不合格,则将待层压件修复完成之后重新进行缺陷检测。
- 根据权利要求1所述的方法,其特征在于,所述方法包括设置顶侧封装结构和底侧封装结构的步骤,所述设置底侧封装结构的步骤包括:设置底板;使用EVA、POE或硅胶设置位于所述刚性板和所述电池片阵列之间的柔性膜,所述设置顶侧封装结构的步骤包括:使用EVA、POE或硅胶设置位于所述顶板和所述电池片阵列之间的柔性膜;设置顶板。
- 根据权利要求1-20中任意一项所述的方法,其特征在于,所述粘结剂不具导电性。
- 根据权利要求1-20中任意一项所述的方法,其特征在于,所述方法不包括设置焊带的步骤。
- 一种叠瓦组件,所述叠瓦组件包括底侧封装结构、透明的顶侧封装结构和设置在所述底侧封装结构和顶侧封装结构之间的电池片阵列,所述电池片阵列包括至少两个电池串,各个所述电池串沿第 一方向依次排列成所述电池片阵列,其特征在于,每一个电池串包括多个太阳能电池片和位于所述多个电池片末端的一个导电片,所述多个太阳能电池片和所述一个导电片沿垂直于所述第一方向的第二方向以叠瓦方式依次排列并通过粘结剂相对于彼此固定,其中,各个所述太阳能电池片之间通过主栅线之间的接触而实现导电连接,所述导电片和与其相邻的太阳能电池片的主栅线接触,其中,所述叠瓦组件设置有共同位于所述电池片阵列的顶侧或底侧的第一汇流条和第二汇流条,其中,所述第一汇流条构造为与各个所述电池串的首端的所述太阳能电池片的主栅线电接触,所述第二汇流条构造为与各个所述电池串的所述导电片电接触,所述两个汇流条均为连续的条状结构并能够从所述电池片阵列收集电流并将电流向外导出。
- 根据权利要求23所述的叠瓦组件,其特征在于,每一个所述电池串的首端的太阳能电池片的顶表面上设置有和其主栅线直接接触的第一导电粘结结构,所述导电片的顶表面上设置有第二导电粘结结构,相邻的所述电池串的对应的导电粘结结构在所述第一方向上间隔开,并且,所述顶侧封装结构包括顶板,所述汇流条形成在所述顶板的底表面上并在垂直于所述电池片阵列的方向上和各个对应的所述导电粘结结构对齐,以使得所述汇流条同时接触所有所述电池串的对应的所述导电粘结结构。
- 根据权利要求24所述的叠瓦组件,其特征在于,所述顶侧封装结构还包括设置在所述顶板和所述电池片阵列之间的顶侧柔性膜,所述顶侧柔性膜上设置与所述导电粘结结构对应的孔,所述导电粘结结构能够透过所述孔而与所述汇流条接触。
- 根据权利要求24所述的叠瓦组件,其特征在于,所述导电粘结结构中的每一段为点状结构或沿所述第一方向延伸的条状结构。
- 根据权利要求23所述的叠瓦组件,其特征在于,所述汇流条形成在所述电池片阵列上,所述第一汇流条将各个所述电池串首端的 所述主栅线连接起来,所述第二汇流条将各个所述电池串的所述导电片连接起来。
- 根据权利要求27所述的叠瓦组件,其特征在于,所述顶侧封装结构不具导电性。
- 根据权利要求23所述的叠瓦组件,其特征在于,所述粘结剂设置在每一个所述电池串的每一对相邻的两个太阳能电池片之间。
- 根据权利要求23所述的叠瓦组件,其特征在于,所述粘结剂设置在每一个所述太阳能电池片和所述底侧封装结构之间,以使所有的所述太阳能电池片均相对于所述底侧封装结构固定。
- 根据权利要求30所述的叠瓦组件,其特征在于,所述底侧封装结构包括底板和位于所述底板和所述电池片阵列之间的底侧柔性膜,所述粘结剂施加在所述底侧柔性膜的顶表面上。
- 根据权利要求31所述的叠瓦组件,其特征在于,所述粘结剂为预先设置在所述底侧柔性膜的顶表面上的多组点状粘结剂,每一组所述点状粘结剂对应于一个所述电池串,每一组所述点状粘结剂均包括一排或者多排点状粘结剂,所述点状粘结剂均沿所述第二方向依次排列并用于分别和该电池串中的每一个所述太阳能电池片的底表面接合。
- 根据权利要求23所述的叠瓦组件,其特征在于,每一个所述电池串上设置有一个所述粘结剂,所述粘结剂为沿所述第二方向延伸的条状结构并跨越在所述电池串上。
- 根据权利要求23所述的叠瓦组件,其特征在于,所述底侧封装结构包括底板和位于所述底板和所述电池片阵列之间的柔性膜,所述柔性膜为EVA整片膜结构、POE整片膜结构或硅胶整片膜结构,所述顶侧封装结构包括顶板和位于所述顶板和所述电池片阵列之间的柔性膜,所述柔性膜为EVA整片膜结构、POE整片膜结构或硅胶整片膜结构。
- 根据权利要求23-34中任意一项所述的叠瓦组件,其特征在于,所述粘结剂不具导电性。
- 根据权利要求23-34中任意一项所述的叠瓦组件,其特征在于,所述叠瓦组件不设置焊带。
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