CN110729378A - 一种电热联产光伏板的制造方法 - Google Patents
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Abstract
一种电热联产光伏板的制造方法包括：吸热板绝缘的方法、电池片封装到吸热板的方法、吸热板进一步焊接到背循环管的方法。采用本发明的方法，电池片被首先封装到吸热板上，然后吸热板被快速地焊接到换热管上，电池片不受损害。
Description
技术领域
本发明涉及光伏板的加工制造领域，具体涉及一种光伏板和集热板相结合的电热联产光伏板的加工制造技术。
背景技术
入射到光伏组件上的太阳辐射是一个宽频谱的光。在通过单结太阳电池光伏组件转化太阳能的过程中，单一的半导体太阳电池，例如硅太阳电池，只能将部分太阳光谱高效地转化为电能，其余绝大部分转化为热能。对于封装在组件中的太阳电池而言，转化为热能的部分不仅直接降低电池的电转化效率，并且通过组件中热量的积累，间接地通过温升降低电池已有的电转化效率。常规的平板光伏组件的效率一般在20％左右，由于相对于室温的电池工作温度提高所造成的效率降低为0.4-0.6％/℃。因而采用通水冷却的电热联产光伏板，不仅可将组件产生的热量提取出来加以利用使得组件总的转化效率达到70％以上，而且可使组件电的转化效率大幅度提高，一个经典的案例是一个270瓦组件在太阳辐射1000W/m2的辐射条件下，经历8小时日照，电热联产光伏板比常规光伏板多获得11.3％的电能。因而电热联产光伏板受到广泛重视。电热联产光伏板的构造方式多种多样，有空气冷却的、有液体冷却的，有聚光的和不聚光的。但最直接了当的方式是将常规管板式集热器和常规硅太阳电池片整合到一起。图2所示为一种采用液体冷却的经典的电热联产光伏组件的内部结构。其中用于提取热量并冷却太阳电池的集热板是管板式集热板。在制造此种类型的电热联产光伏板时，通常的办法都是先制造管板式集热板，再将太阳电池粘结到集热板的上表面，但是管板式集热板凹凸不平无法用层压机直接封装太阳电池。同时太阳电池封装到集热平板表面时，其与集热平板表面的可靠绝缘和有效传热也是一个巨大的挑战。
发明内容
本发明要解决的技术问题是提供一种电热联产光伏板的加工制造方法，可以采用层压机高效可靠地将太阳电池封装到平板集热器表面，同时保障太阳电池与集热板平面间的可靠绝缘和有效传热。
为了达到上述目的，本发明采用的技术方案为：一种电热联产光伏板的制造方法，包括如下步骤：
首先在一块金属铝板表面采用喷塑的方法喷涂一层塑料，或者采用阳极氧化的方法在其表面产生一层12-14微米的氧化层，或者采用磁控溅射的方法沉积一层二氧化硅或者氮化硅薄膜；其次在金属铝板表面铺设一层EVA胶膜然后排布太阳电池，然后在其上方再铺设一层EVA胶膜；
然后采用层压机层压融化封装电池后的金属板上的EVA；
然后将分支铜管和收集铜管焊接成循环管道框架；
然后采用激光焊将循环管道框架焊接到封装太阳电池后的铝板背面制成芯板；
然后采用框架和盖层钢化玻璃将焊接好的芯板封装构成电热联产组件。
上述方案中，金属铝板要单面喷塑或单面氧化形成氧化膜或单面沉积二氧化硅或者氮化硅薄膜。
上述方案中，激光焊在分支铜管两侧与金属铝板间形成两排由彼此间隔3-5毫米的焊点组成的焊线。
本发明提出一种电热联产光伏板的制造方法，由于采用先处理集热板板面的方法，可以获得可靠的绝缘层和良好的传热效果，由于采用先行封装太阳电池的方法，可以采用层压机获得封装良好的电池板，由于采用了高速激光焊将循环管道框架整体焊接到封装有太阳电池的集热电池板背面制成电热联产芯板的方法，无需加压做到了不损毁电池板和绝缘层，最后采用框架，背保温棉和钢化玻璃封装整个组件。
附图说明
图1为管板式电热联产光伏板的刨面内部结构；
图2为本发明实施例中电热联产光伏板组件的总体封装结构；
图3为本发明实施例中背循环管框架结构；
图4为本发明实施例中背循环管和集热板的焊接结构。
具体实施方式
下面结合附图和实施例对本发明技术方案进行详细描述。
图1所示为管板式电热联产光伏板的内部结构刨面图，其中100是整块的集热平板；200是绝缘涂层、镀层、或者沉积层以及EVA(Polyethylene vinylacetate)绝缘层；300是太阳电池以及其上的另外一层EVA膜层；400是管板式集热器的背循环管；500是该电热联产组件的边框；600是侧绝热层；700是钢化玻璃透明盖层；800是背保温绝热层。
本发明实施例提供一种电热联产光伏板的加工制造方法，具体包括如下步骤：
(1)选取与所需制造电热联产光伏组件大小相同的整块铝板100，然后采用阳极氧化的方法或者其他方法在其一面制备一层12-14微米的氧化铝薄膜200，或者采用喷塑的方法喷涂一层塑料薄膜200，或者采用磁控溅射沉积一层二氧化硅或者氮化硅，如图2所示；
(2)在氧化铝薄膜或者喷塑薄膜上方铺设一层EVA胶膜210，如图2所示；
(3)在EVA胶膜上方排布太阳电池阵列300，如图2所示；
(4)在EVA胶膜上方再铺设一层EVA胶膜310，如图2所示；
(5)将铺设了太阳电池的铝板放入层压机中加压、加热融化封装，制成电池板；
(6)将集热支管和收集集管焊接成循环管框架400，如图3所示；
(7)将电池板没有封装太阳电池的背面和循环管框架对齐接触，并将集热支管和铝板用激光焊接在一起，制成芯板，如图4所示，激光焊接在支管两侧形成两排间隔3-5毫米的焊点410；
(8)将芯板用边框和盖板玻璃及绝热材料封装制成电热联产光伏组件，如图2所示。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域中的技术人员来说，本发名可以有各种更改和变化。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (3)
1.一种电热联产光伏板的制造方法，其特征在于，包括如下步骤：
首先在一块金属铝板表面采用喷塑的方法喷涂一层塑料，或者采用阳极氧化的方法在其表面产生一层12-14微米的氧化层，或者采用磁控溅射的方法沉积一层二氧化硅或者氮化硅薄膜；其次在金属铝板表面铺设一层EVA胶膜然后排布太阳电池，然后在其上方再铺设一层EVA胶膜；
然后采用层压机层压融化封装电池后的金属板上的EVA；
然后将分支铜管和收集铜管焊接成循环管道框架；
然后采用激光焊将循环管道框架焊接到封装太阳电池后的铝板背面制成芯板；
然后采用框架和盖层钢化玻璃将焊接好的芯板封装构成电热联产组件。
2.如权利要求书1所述的一种电热联产光伏板的制造方法，其特征在于：金属铝板要单面喷塑或单面氧化形成氧化膜或单面沉积二氧化硅或者氮化硅薄膜。
3.如权利要求书1所述的一种电热联产光伏板的制造方法，其特征在于：激光焊在分支铜管两侧与金属铝板间形成两排由彼此间隔3-5毫米的焊点组成的焊线。
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| CN112614906A (zh) * | 2020-12-16 | 2021-04-06 | 浙江晴达新能源科技有限公司 | 一种电热联产光伏板及其制造方法 |
| WO2022160788A1 (zh) * | 2021-01-29 | 2022-08-04 | 隆基乐叶光伏科技有限公司 | 一种光伏建筑一体化组件及其制备方法 |
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| CN112614906A (zh) * | 2020-12-16 | 2021-04-06 | 浙江晴达新能源科技有限公司 | 一种电热联产光伏板及其制造方法 |
| WO2022160788A1 (zh) * | 2021-01-29 | 2022-08-04 | 隆基乐叶光伏科技有限公司 | 一种光伏建筑一体化组件及其制备方法 |
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