CN105577093B - 新洁净光伏板 - Google Patents

新洁净光伏板 Download PDF

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CN105577093B
CN105577093B CN201510665504.XA CN201510665504A CN105577093B CN 105577093 B CN105577093 B CN 105577093B CN 201510665504 A CN201510665504 A CN 201510665504A CN 105577093 B CN105577093 B CN 105577093B
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谢申衡
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Daheng Energy Co.,Ltd.
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Anhui Daheng Energy Technology Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00Structural details of PV modules other than those related to light conversion
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/10Cleaning arrangements
    • 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20Optical components
    • H02S40/22Light-reflecting 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

本发明涉及一种新洁净光伏板,本新洁净光伏板包括有支架、吸光条、反射板和框架;所述吸光条平行的阵列在所述框架内并组成吸光栅格,框架中的每排所述吸光条之间的间隔相同,各所述吸光条的受光面朝下;在所述框架的下方位置正对的安装有所述反射板,所述反射板和所述框架之间由支架连接固定;该光伏板能够高效吸收太阳能发电,同时受光面不易沾染灰尘,具有更长的使用寿命。

Description

新洁净光伏板
技术领域
本发明涉及一种光伏板,特别的,是一种不易粘附灰尘的光伏板。
背景技术
随着环境的恶化和人类环保意识的深入,光伏发电作为主要绿色能源之一,越来越多的得以应用;光伏作为太阳能发电,天气的状况是制约发电的最大因素,其次人力所能控制的除了避免电气设备故障带来的损失外,光伏板的洁净度也显得尤为重要;光伏组件表面污浊对齐发电效率的影响相当显著,其一,表面的污浊影响光线的透射率,进而影响到组件表面所接受的辐射量;其二,污物粘附在电池板表面会形成阴影,在光伏组件的局部产生热斑效应,进而对光伏板造成损伤,影响发电效率的同时也会缩短光伏板的寿命;传统结构的光伏板由于采光面朝上,灰尘很容易落在表面,从而引发热斑效应,而采光面朝下则无法高效吸收光能。
发明内容
针对上述问题,本发明提供一种新洁净光伏板,该光伏板能够高效吸收太阳能发电,同时受光面不易沾染灰尘,具有更长的使用寿命。
为解决上述问题,本发明所采用的技术方案是:本新洁净光伏板包括有支架、吸光条、反射板和框架;所述吸光条平行的阵列在所述框架内并组成吸光栅格,框架中的每排所述吸光条之间的间隔相同,各所述吸光条的受光面朝下;在所述框架的下方位置正对的安装有所述反射板,所述反射板和所述框架之间由支架连接固定。
本发明的有益效果是:将本新洁净光伏板安装在房顶、墙壁或荒漠地区;这些位置接收日照的时间较长、光照也较强;太阳光透过吸光条之间的空隙到达反射板,反射光照射在吸光条的受光面用以发电;相较于传统的光伏板,本发明中的吸光条的宽度远小于框架与反射板之间的距离,根据光的衍射特性可知,被吸光条遮挡形成的阴影在经过反射板的反射后,阴影变得较淡,对吸光条的影响较小;此外,在长期使用中反射板上将积累小颗粒污物,这些污物造成的阴影也因光的衍射特性而逐渐变淡,当阴影到达吸光条时阴影变得模糊,本影区域变得很小甚至消失,此时已无法形成热斑效应。
同时本发明中吸光条的受光面向下,有效防止了灰尘的积累、沉积,同时受雨水的冲刷也有效降低,因此整体的使用寿命明显增长;综上,本发明结构简单、精巧,有效防止了传统光伏板的热斑效应,同时具有较长的使用寿命,具有较高的推广价值。
作为优选,所述反射板由单透玻璃板做成,所述单透玻璃板的反光面朝上;这种使用单透玻璃板的光伏板可以装置于房顶作以家用,室内的居民能够透过单透玻璃板看到房间外的风景,视野不会受到阻碍,同时外界的阳光大部分被反光面反射用以发电,因此这种家用光伏板在高效发电的同时能够保证房间的明亮、通透。
作为优选,相邻两个所述吸光条之间的间隔与吸光条的宽度相等;以便于使透光率和光能吸收率达到最平衡、科学。
作为进一步优选,框架与反射板之间的距离为吸光条宽度的13倍以上;随着框架与反射板之间的距离增大,吸光条在反射板上形成的阴影将逐渐变淡,同时反射板上的污物形成的阴影的本影部分也将变小;该数量关系能够保证阴影对吸光条的影响较小,从而无法使吸光条产生热斑效应。
作为优选,在所述框架的上下边缘还安装有遮雨挡板;以便于将雨水导流,减小雨水沿吸光条下表面流动的频率。
作为优选,在所述吸光条之间安装有旋光板,所述旋光板的厚度使光线旋转45度角;在所述旋光板的上表面贴附有偏振片;太阳光经偏振片过滤后形成偏振光,偏振光透过旋光板后旋转45度角,旋转后的偏振光经反射板反射后照射在吸光条上,用以吸光条的吸收、发电,而部分未照射在吸光条上的偏振光再次透过旋光板旋转45度角,此时偏振光与偏振片的透光方向呈90度角,偏振光无法透射出去,该结构有效防止了反射板的光污染,不会影响高空飞行器的视野。
附图说明
图1为本新洁净光伏板用于屋顶的结构示意图。
图2为图1所示实施例中光路偏转的示意图。
具体实施方式
实施例
在图1、图2所示的实施例中,本新洁净光伏板包括有支架1、吸光条2、反射板3和框架4;所述吸光条2平行的阵列在所述框架4内并组成吸光栅格,框架4中的每排所述吸光条2之间的间隔相同,各所述吸光条2的受光面朝下,且相邻两个所述吸光条2之间的间隔与吸光条2的宽度相等;在两个相邻所述吸光条2之间安装有旋光板5,所述旋光板5的厚度使光线旋转45度角;在所述旋光板5的上表面贴附有偏振片6;在所述框架4的下方位置正对的安装有所述反射板3,所述反射板3由单透玻璃板做成,所述单透玻璃板的反光面朝上;所述反射板3和所述框架4之间由支架1连接固定,框架4与反射板3之间的距离为吸光条2宽度的13倍以上;在所述框架4的上下边缘还安装有遮雨挡板7。
将本新洁净光伏板安装在房顶、墙壁或荒漠地区;这些位置接收日照的时间较长、光照也较强;太阳光透过吸光条2之间的空隙到达反射板3,少量光线透过单透玻璃板射入反射板3的下方,如光线透过屋顶的反射板3照亮室内,从而使室内的光线充足,同时居民能够透过该单透玻璃板观察天空及吸光条2,因此视野上更开阔;而大部分光线经反射板3后照射在吸光条2的受光面用以发电;相较于传统光伏板的集成化,本发明中的吸光条2的宽度远小于框架4与反射板3之间的距离,根据光的衍射特性可知,被吸光条2遮挡形成的阴影在经过反射板3的反射后,阴影变得较淡,对吸光条2的影响较小;同时,在本实施例中,相邻吸光条2之间的间距与吸光条2的宽度相等,反射光和吸光条2能够达到平衡,将有充足的光线照射吸光条2;同时吸光条2产生的阴影在长距离的反射路径后阴影变淡,因此吸光条2各处的光强差别较小,各所述吸光条2的发电功率一致,从而使其使用寿命得到延长。
此外,在长期使用中反射板3上将积累小颗粒污物,这些污物造成的阴影也因光的衍射特性而逐渐变淡,当阴影到达吸光条2时阴影变得模糊,本影区域变得很小甚至消失,此时已无法形成热斑效应。
同时本发明中吸光条2的受光面向下,有效防止了灰尘的积累、沉积,同时受雨水的冲刷也有效降低,因此整体的使用寿命明显增长;本实施例中的遮雨挡板7能够进一步的保护吸光条2,减少吸光条2受雨水的侵蚀。
在本实施例中,旋光板5和偏光片起到降低光污染的效果;如图2所示,太阳光经偏振片6过滤后形成偏振光,偏振光透过旋光板5后旋转45度角,旋转后的偏振光经反射板3反射后照射在吸光条2上,用以吸光条2的吸收、发电,而部分未照射在吸光条2上的偏振光再次透过旋光板5旋转45度角,此时偏振光与偏振片6的透光方向呈90度角,偏振光无法透射出去;即照射在本光伏板上的光线不会在反射回去,不影响高空的视线,该结构有效防止了反射板3的光污染,不会影响高空飞行器的视野,同时将光能封闭在吸光条2和反射板3之间,有效提高了发电效率。
综上,本发明结构简单、精巧,有效防止了传统光伏板的热斑效应,同时具有较长的使用寿命,具有较高的推广价值。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (5)

1.一种新洁净光伏板,本新洁净光伏板包括有支架(1)、吸光条(2)、反射板(3)和框架(4);其特征在于:所述吸光条(2)平行的阵列在所述框架(4)内并组成吸光栅格,框架(4)中的每排所述吸光条(2)之间的间隔相同,各所述吸光条(2)的受光面朝下;在所述框架(4)的下方位置正对的安装有所述反射板(3),所述反射板(3)和所述框架(4)之间由支架(1)连接固定;
在所述吸光条(2)之间安装有旋光板(5),所述旋光板(5)的厚度使光线旋转45度角;在所述旋光板(5)的上表面贴附有偏振片(6)。
2.根据权利要求1所述的新洁净光伏板,其特征在于:所述反射板(3)由单透玻璃板做成,所述单透玻璃板的反光面朝上。
3.根据权利要求1所述的新洁净光伏板,其特征在于:相邻两个所述吸光条(2)之间的间隔与吸光条(2)的宽度相等。
4.根据权利要求1或3所述的新洁净光伏板,其特征在于:框架(4)与反射板(3)之间的距离为吸光条(2)宽度的13倍以上。
5.根据权利要求1或2所述的新洁净光伏板,其特征在于:在所述框架(4)的上下边缘还安装有遮雨挡板(7)。
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CN103138633A (zh) * 2011-11-25 2013-06-05 陕西科林能源发展股份有限公司 一种利用反射镜面聚光的太阳能聚光发电装置
CN103850198A (zh) * 2014-04-02 2014-06-11 东莞市中博光电节能科技有限公司 一种太阳能道钉

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