CN106711266B - 一种单倍反光光伏组件 - Google Patents

一种单倍反光光伏组件 Download PDF

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CN106711266B
CN106711266B CN201611231672.9A CN201611231672A CN106711266B CN 106711266 B CN106711266 B CN 106711266B CN 201611231672 A CN201611231672 A CN 201611231672A CN 106711266 B CN106711266 B CN 106711266B
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adhesive film
crystalline silicon
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CN106711266A (zh
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张林森
邱文凯
刘伟
董凤军
李维萍
张翔卫
李立
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Ningxia Zhongke Ka New Energy Research Institute (limited)
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/05Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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    • H01L31/02168Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • H01L31/049Protective back sheets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

Abstract

本发明公开一种单倍反光光伏组件,其包括晶体硅电池片和微棱镜型反射膜,晶体硅电池片呈薄板状,横向平铺在一平面上;微棱镜型反射膜平铺在晶体硅电池片所在的平面上;晶体硅电池片通过焊带互相串联;晶体硅电池的正面设置有正面封装胶膜;正面封装胶膜远离晶体硅电池片的一面上设置有玻璃板;晶体硅电池的背面设置有背面封装胶膜;背面封装胶膜上设置有背面保护板;玻璃板、正面封装胶膜、晶体硅电池片、微棱镜型反射膜、背面封装胶膜与背面保护板构成一整体,且其四周侧面设置有边框。本发明的有益效果为:该单倍反光光伏组件效率高、成本低、作业可靠;可以减少晶体硅电池用量和伏组件成本提高发电效率。

Description

一种单倍反光光伏组件
技术领域:
本发明涉及光伏发电领域,具体涉及一种单倍反光光伏组件。
背景技术:
在光伏发电领域内,单体太阳电池不能直接做电源使用。作电源必须将若干单体电池串、并联连接和严密封装成组件。这种组件就叫光伏组件(也叫太阳能电池板),是太阳能发电系统中的核心部分,也是太阳能发电系统中最重要的部分。其作用是将太阳能转化为电能,并送往蓄电池中存储起来,或推动负载工作。
目前,国内光伏组件主要以晶体硅光伏组件为主。
而晶体硅光伏组件作为主流,其装换效率约为16.5%-18%之间,其主要原材料为晶体硅电池片;在成本上,晶体硅电池片占据的光伏组件成本的60%。因此,在兼顾发电效率和降低成本之间就出现了矛盾。
发明内容:
本发明的目的在于解决已有反光光伏组件的不足之处,提供一种效率高、成本低、作业可靠的单倍反光光伏组件。
本发明是通过以下技术方案实现的:
本发明的一种单倍反光光伏组件,包括晶体硅电池板,其中晶体硅电池板由晶体硅电池片组成,晶体硅电池片呈薄板状,其中晶体硅电池片横向平铺于一平面上,每个晶体硅电池片之间通过焊带互相串联;晶体硅电池片所在的平面上设有微棱镜型反射膜,且微棱镜型反射膜的长度与晶体硅电池片的长度相等;晶体硅电池片和微棱镜型反射膜的正面设置有正面封装胶膜,背面设置有背面封装胶膜;正面封装胶膜远离晶体硅电池片的一面上设置有玻璃板;背面封装胶膜上远离晶体硅电池片的一面上设置有背面保护板;玻璃板、正面封装胶膜、晶体硅电池片、微棱镜型反射膜、背面封装胶膜与背面保护板构成一整体,其四周侧面设置有边框;晶体硅电池片与微棱镜型反射膜在水平方向和竖直方向上都呈交错排列,形成一个矩形阵列;晶体硅电池片和微棱镜型反射膜在矩形阵列内沿竖直方向的直线对齐。
上述微棱镜型反射膜为由改性聚酯树脂、聚氨酯树脂、聚丙烯酸树脂、聚碳酸酯树脂、聚氯乙烯树脂或共聚物材料制成的高分子材料薄膜。
上述正面封装胶膜为透明胶膜,其面积大于晶体硅电池片和微棱镜型反射膜组成的矩形阵列的面积;正面封装胶膜的一表面与晶体硅电池片和微棱镜型反射膜的正面呈无缝固定连接,且完全覆盖晶体硅电池片和微棱镜型反射膜所组成的阵列。
上述玻璃板为超白低铁钢化玻璃,其长度和宽度与正面封装胶膜的长度和宽度相等;玻璃板与正面封装胶膜远离晶体硅电池片的一面呈无缝固定连接,且与其完全重合。
上述背面封装胶膜为白色毛毡胶膜,其长度和宽度与正面封装胶膜的长度和宽度相等,且与其重合;背面封装胶膜与晶体硅电池片和微棱镜型反射膜的背面呈无缝固定连接。
上述背面保护板的长度和宽度与背面封装胶膜的长度和宽度相等;背面保护板与背面封装胶膜远离晶体硅电池片的一面呈无缝固定连接,且与其完全重合。
上述晶体硅电池片、微棱镜型反射膜、背面保护板、玻璃板、正面封装胶膜和背面封装胶膜通过高温进行封装,固定连接。
本发明的有益效果在于:
该单倍反光光伏组件效率高、成本低、作业可靠;可以在同等面积和效率的条件下,减少晶体硅电池用量50%左右,降低光伏组件成本25%以上;通过反射可提高晶体硅电池片的发电效率10%-15%,可使其单位面积的转换效率大大提高。
附图说明:
图1:本发明的结构示意剖面图;
图2:本发明的结构示意图;
图中:1-晶体硅电池片、2-微棱镜型反射膜、3-焊带、4-背面保护板、5-边框、6-玻璃板、7-正面封装胶膜、8-背面封装胶膜。
具体实施方式:
下面结合附图和具体实施方式对本发明做进一步说明:
实施例:如图1、图2所示,一种单倍反光光伏组件,包括晶体硅电池板,其中晶体硅电池板由若干个晶体硅电池片1组成,晶体硅电池片1呈薄板状,其中晶体硅电池片1横向平铺于一平面上,每个晶体硅电池片1之间通过焊带3互相串联;晶体硅电池片1所在的平面上设有微棱镜型反射膜2,且微棱镜型反射膜2的长度与晶体硅电池片1的长度相等;晶体硅电池片1和微棱镜型反射膜2的正面设置有正面封装胶膜7,背面设置有背面封装胶膜8;正面封装胶膜7远离晶体硅电池片1的一面上设置有玻璃板6;背面封装胶膜8上远离晶体硅电池片1的一面上设置有背面保护板4;玻璃板6、正面封装胶膜7、晶体硅电池片1、微棱镜型反射膜2、背面封装胶膜8与背面保护板4构成一整体,其四周侧面设置有边框5;晶体硅电池片1与微棱镜型反射膜2在水平方向和竖直方向上都呈交错排列,形成一个矩形阵列;晶体硅电池片1和微棱镜型反射膜2在矩形阵列内沿竖直方向的直线对齐;微棱镜型反射膜2为由改性聚酯树脂、聚氨酯树脂、聚丙烯酸树脂、聚碳酸酯树脂、聚氯乙烯树脂或共聚物材料制成的高分子材料薄膜;正面封装胶膜7为透明胶膜,其面积大于晶体硅电池片1和微棱镜型反射膜2组成的矩形阵列的面积;正面封装胶膜7的一表面与晶体硅电池片1和微棱镜型反射膜2的正面呈无缝固定连接,且完全覆盖晶体硅电池片1和微棱镜型反射膜2所组成的阵列;玻璃板6为超白低铁钢化玻璃,其长度和宽度与正面封装胶膜7的长度和宽度相等;玻璃板6与正面封装胶膜7远离晶体硅电池片1的一面呈无缝固定连接,且与其完全重合;背面封装胶膜8为白色毛毡胶膜,其长度和宽度与正面封装胶膜7的长度和宽度相等,且与其重合;背面封装胶膜8与晶体硅电池片1和微棱镜型反射膜2的背面呈无缝固定连接;背面保护板4的长度和宽度与背面封装胶膜8的长度和宽度相等;背面保护板4与背面封装胶膜8远离晶体硅电池片1的一面呈无缝固定连接,且与其完全重合;晶体硅电池片1、微棱镜型反射膜2、背面保护板4、玻璃板6、正面封装胶膜7和背面封装胶膜8通过高温进行封装,固定连接。
使用时,将封装完成的单倍反光光伏组件的焊带3都串联后,通过汇流带再串联到光伏接线盒中;此时,单倍反光光伏组件即可正常工作;当太阳光线从不同的角度射入单倍反光光伏组件工作表面时,直接射入晶体硅电池片1的太阳光线被转化成电能;射入微棱镜型反射膜2的太阳光线经过反射,进入玻璃板6的内表面,后通过玻璃板6的二次反射“深度零反射”将太阳光线反射到旁边晶体硅电池1表面,从而提高了晶体硅电池的发电效率。

Claims (7)

1.一种单倍反光光伏组件,包括晶体硅电池板,所述晶体硅电池板由晶体硅电池片(1)组成,所述晶体硅电池片(1)呈薄板状,其特征在于:所述晶体硅电池片(1)横向平铺于一平面上,每个晶体硅电池片(1)之间通过焊带(3)互相串联;所述晶体硅电池片(1)所在的平面上设有微棱镜型反射膜(2),且微棱镜型反射膜(2)的长度与晶体硅电池片(1)的长度相等;所述晶体硅电池片(1)和微棱镜型反射膜(2)的正面设置有正面封装胶膜(7),背面设置有背面封装胶膜(8);所述正面封装胶膜(7)远离晶体硅电池片(1)的一面上设置有玻璃板(6);所述背面封装胶膜(8)上远离晶体硅电池片(1)的一面上设置有背面保护板(4);所述玻璃板(6)、正面封装胶膜(7)、晶体硅电池片(1)、微棱镜型反射膜(2)、背面封装胶膜(8)、与背面保护板(4)构成一整体,其四周侧面设置有边框(5);所述晶体硅电池片(1)与微棱镜型反射膜(2)在水平方向和竖直方向上都呈交错排列,形成一个矩形阵列;所述晶体硅电池片(1)和微棱镜型反射膜(2)在矩形阵列内沿竖直方向的直线对齐。
2.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述微棱镜型反射膜(2)为由改性聚酯树脂、聚氨酯树脂、聚丙烯酸树脂、聚碳酸酯树脂、聚氯乙烯树脂或共聚物材料制成的高分子材料薄膜。
3.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述正面封装胶膜(7)为透明胶膜,其面积大于晶体硅电池片(1)和微棱镜型反射膜(2)组成的矩形阵列的面积;所述正面封装胶膜(7)的一表面与晶体硅电池片(1)和微棱镜型反射膜(2)的正面呈无缝固定连接,且完全覆盖晶体硅电池片(1)和微棱镜型反射膜(2)所组成的阵列。
4.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述玻璃板(6)为超白低铁钢化玻璃,其长度和宽度与正面封装胶膜(7)的长度和宽度相等;所述玻璃板(6)与正面封装胶膜(7)远离晶体硅电池片(1)的一面呈无缝固定连接,且与其完全重合。
5.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述背面封装胶膜(8)为白色毛毡胶膜,其长度和宽度与正面封装胶膜(7)的长度和宽度相等,且与其重合;所述背面封装胶膜(8)与晶体硅电池片(1)和微棱镜型反射膜(2)的背面呈无缝固定连接。
6.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述背面保护板(4)的长度和宽度与背面封装胶膜(8)的长度和宽度相等;所述背面保护板(4)与背面封装胶膜(8)远离晶体硅电池片(1)的一面呈无缝固定连接,且与其完全重合。
7.如权利要求1所述的一种单倍反光光伏组件,其特征在于:所述晶体硅电池片(1)、微棱镜型反射膜(2)、背面保护板(4)、玻璃板(6)、正面封装胶膜(7)和背面封装胶膜(8)通过高温进行封装,固定连接。
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