CN104300022A - 双面发电太阳能电池组件 - Google Patents
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Abstract
本发明涉及一种太阳能电池装置，公开了一种双面发电太阳能电池组件。包括组件边框、玻璃管以及设置在玻璃管内部的电池片，电池片设置在玻璃管的中心位置，且电池片的高度小于玻璃管的直径长度，电池片的正面对向光源，电池片的背面对向反射膜；所述的电池片为双面电池片。本发明通过合理设计的太阳能电池组件结构，使单晶硅板双面接受光照，提高光能利用效率和单晶硅电池的发电效率；与现有技术中的相同发电量的太阳能电池片相比，体积更加紧凑，结构简单科学，光电转换效率高。
Description
技术领域
本发明涉及一种太阳能电池装置，由其涉及一种能够双面发电的太阳能电池组件。
背景技术
能源问题是一个国家的战略问题，同时也是在21世纪人类社会要保持高速可持续发展所面临的重大挑战之一。由于太阳能发电有如安全可靠，无污染，不受地域限制，无需消耗燃料，维护简便，建设周期短，建设的规模大小随意，不需要架设输线路，可以方便地与建筑物结合等等一系列的优点，这些优点是常规发电以及其它发电方式不能比拟的，因而太阳能发电成为目前各国研究得最多，发展也是最快的技术之一。
在所有的太阳能电池中，硅太阳能电池由于其成熟的技术，渐渐成为太阳能电池的主流。而在硅系列太阳能电池中，单晶硅太阳能电池的转换效率最高，技术也最为成熟，应用也最为广泛，在大规模应用和工业生产中仍占据主导地位。
提高太阳能电池效率的手段，主要有如下几种：一种是在太阳能电池表面制作陷光结构，即在单晶硅表面制作一种抗反射层，从而降低硅片表面的反射率；另外一种是在表面涂一层抗反射涂层，增加光的透射性，从而提高太阳能电池对光的吸收；此外还有在太阳能电池的接收端增加一个聚光器，从而能使得太阳能电池的效率增加。
可以看到，上述的方法都是将焦点集中在太阳能电池对光吸收的提高上。而如何提高太阳能电池的光电转换效率，又在不大辐度增加单晶硅太阳能电池的制造成本成为现在大家关心和研究的热点。
发明内容
本发明针对现有技术中太阳能电池组件单晶硅电池效率低，体积大，散热效果不好等问题，提供了一种双面发电太阳能电池组件，有效提高太阳能电池的光能利用效率。
一种双面发电太阳能电池组件，包括组件边框、玻璃管以及设置在玻璃管内部的电池片，电池片设置在玻璃管的中心位置，且电池片的高度小于玻璃管的直径长度，电池片的正面对向光源，电池片的背面对向反射膜；所述的电池片为双面电池片，反射膜为弧形结构。反射膜用于反射阳光，将光线反射到电池片的背面，使电池片的两面能够同时受到光照，提高光电转换效率。
进一步的，所述的电池片通过支架固定在玻璃管上，并且该支架连接在电池片的四边处，不影响电池片接受光照。
进一步的，所述的玻璃管为圆柱形结构。反射膜设置在玻璃管背对光源一侧的内部，并且能够将通过电池片侧边与玻璃管的间隙透射到反射膜上的光线反射到电池片的背面。由于玻璃管为圆柱形，反射膜设置在玻璃管内壁上，为弧形结构，垂直于电池片的光线照射向玻璃管，一部分照射在电池片的正面，并发生光伏效应；另一部分透过电池片与玻璃管的间隙照射在反射膜上，由于反射膜的弧形结构与光线方向形成一定角度，将光线反射到电池片的背面，发生光伏效应，实现双面发电。
进一步的，若干个玻璃管并排排列在组件边框中，相邻两个玻璃管通过弯管连接，使组件边框中的所有玻璃管呈首尾相连的S型排列。首尾相连的玻璃管的两端带有进风口和出风口。所述的进风口位于组件边框的下部，出风口位于组件边框的上部。进风口和出风口，用于电池片的通风散热，防止电池片温度过高，降低电池效率。由于热空气上升原理，优选地应当将进风口设置在下方，出风口设置在上方，便于电池片的降温。
进一步的，所述的电池片为双面单晶硅电池片。
进一步的，玻璃管外侧带有太阳能聚光管，用于聚光。
本发明通过合理设计的太阳能电池组件结构，使单晶硅板双面接受光照，提高光能利用效率和单晶硅电池的发电效率；与现有技术中的相同发电量的太阳能电池片相比，体积更加紧凑，结构简单科学；另外，通过热空气对流原理自动散发温度使得半导体发电板在最佳的温度进行有序电子空穴传递形成电流，降低了由于温度升高使得半导体发电板无序电子空穴传递形成电阻，光电转换效率高。
附图说明
图1为本发明实施例的整体结构示意图；
图2为本发明实施例A-A剖面视图；
其中：1-太阳能聚光管；2-组件边框；3-玻璃管；3a-出风口；3b-进风口；4-电池片；5-支架；6-弯管；7-反射膜。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用不同于此处的其它方式来实施，因此本发明不受下面公开的具体实施例的限制。
如图1和2所示，一种双面发电太阳能电池组件，包括组件边框2、玻璃管3以及设置在玻璃管3内部的电池片4。所述的玻璃管3为圆柱形结构，所述的电池片4为双面单晶硅电池片。
电池片4设置在玻璃管3的中心位置，通过支架6固定在玻璃管3上，并且该支架6连接在电池片4的四边处，不影响电池片4接受光照。
电池片4的高度小于玻璃管3的直径长度，电池片4的正面对向光源，电池片4的背面对向反射膜7。反射膜7用于反射阳光，将光线反射到电池片4的背面，使电池片4的两面能够同时受到光照，提高光电转换效率。
该反射膜7设置在玻璃管3背对光源一侧的内部。由于玻璃管3为圆柱形，弧形结构的反射膜7设置在玻璃管3内壁上，当垂直于电池片4的光线照射向玻璃管3，则一部分光线照射在电池片4的正面，并发生光伏效应；另一部分光线透过电池片4与玻璃管3的间隙照射在反射膜7上，由于反射膜7的弧形结构与光线方向形成一定角度，从而将光线反射到电池片4的背面，发生光伏效应，实现电池片4的双面发电。
如图1所示，本实施例中采用4个玻璃管3串联的结构，4个玻璃管并排排列在组件边框2中，相邻两个玻璃管3通过弯管6连接，使组件边框2中的所有玻璃管3呈首尾相连的S型排列。首尾相连的玻璃管3的两端带有进风口3b和出风口3a。所述的进风口3b位于组件边框2的下部，出风口3a位于组件边框2的上部。进风口3b和出风口3a，用于电池片4的通风散热，防止电池片4温度过高，降低电池效率。由于热空气上升原理，优选地应当将进风口3b设置在下方，出风口3a设置在上方，便于电池片的降温。
另外，玻璃管3外侧还带有太阳能聚光管1，用于聚光。所述的太阳能聚光管1为圆柱形管状结构，其侧切面外壁为圆形，内壁为多边形，使太阳能聚光管1外边成凸透镜结构，实现聚光作用。
虽然本发明己较佳的实施例披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可做各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。
Claims (10)
1.一种双面发电太阳能电池组件，包括组件边框(2)、玻璃管(3)以及设置在玻璃管(3)内部的电池片(4)，其特征在于：电池片(4)设置在玻璃管(3)的中心位置，且电池片(4)的高度小于玻璃管(3)的直径长度，电池片(4)的正面对向光源，电池片(4)的背面对向反射膜(7)；所述的电池片(4)为双面电池片，所述的反射膜(7)为弧形结构。
2.根据权利要求1所述的双面发电太阳能电池组件，其特征在于：所述的电池片(4)通过支架(6)固定在玻璃管(3)上，并且该支架(6)连接在电池片(4)的四边处，不影响电池片(4)接受光照。
3.根据权利要求2所述的双面发电太阳能电池组件，其特征在于：所述的玻璃管(3)为圆柱形结构。
4.根据权利要求3所述的双面发电太阳能电池组件，其特征在于：反射膜(7)设置在玻璃管(3)背对光源一侧的内部，并且能够将通过电池片(4)侧边与玻璃管(3)的间隙透射到反射膜(7)上的光线反射到电池片(4)的背面。
5.根据权利要求1-4任意一项所述的双面发电太阳能电池组件，其特征在于：若干个玻璃管(3)并排排列在组件边框(2)中，相邻两个玻璃管(3)通过弯管(6)连接，使组件边框(2)中的所有玻璃管(3)呈首尾相连的S型排列。
6.根据权利要求5所述的双面发电太阳能电池组件，其特征在于：首尾相连的玻璃管(3)的两端带有进风口(1b)和出风口(1a)。
7.根据权利要求6所述的双面发电太阳能电池组件，其特征在于：所述的进风口(3b)位于组件边框(2)的下部，出风口(3a)位于组件边框(2)的上部。
8.根据权利要求1-4、6、7任意一项所述的双面发电太阳能电池组件，其特征在于：所述的电池片(4)为双面单晶硅电池片。
9.根据权利要求1-4任意一项所述的双面发电太阳能电池组件，其特征在于：玻璃管(3)外侧带有太阳能聚光管(1)，用于聚光。
10.根据权利要求9所述的双面发电太阳能电池组件，其特征在于：所述的太阳能聚光管(1)为透明透光材质，能够将光线照射到壳体内部。
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| CN114725231A (zh) * | 2022-05-18 | 2022-07-08 | 一道新能源科技(衢州)有限公司 | 一种太阳能电池以及太阳能电池的贴膜工艺 |
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| CN101453178A (zh) * | 2007-12-08 | 2009-06-10 | 庞怡 | 太阳电能热能转换器 |
| CN201796927U (zh) * | 2010-09-07 | 2011-04-13 | 株洲县育红小学 | 一种太阳能反射接收装置 |
| CN102623541A (zh) * | 2012-03-31 | 2012-08-01 | 庞俊 | 太阳能转换装置 |
| CN103456816A (zh) * | 2013-05-08 | 2013-12-18 | 刘庆云 | 一种管状光伏发电组件的应用方法 |
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| CN114725231A (zh) * | 2022-05-18 | 2022-07-08 | 一道新能源科技(衢州)有限公司 | 一种太阳能电池以及太阳能电池的贴膜工艺 |
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