CN102088040A - Double-face battery assembly - Google Patents

Double-face battery assembly Download PDF

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Publication number
CN102088040A
CN102088040A CN 201010580581 CN201010580581A CN102088040A CN 102088040 A CN102088040 A CN 102088040A CN 201010580581 CN201010580581 CN 201010580581 CN 201010580581 A CN201010580581 A CN 201010580581A CN 102088040 A CN102088040 A CN 102088040A
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assembly
double
bifacial
solar cell
glass
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CN 201010580581
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Chinese (zh)
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王兴华
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泰通(泰州)工业有限公司
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Priority to CN 201010580581 priority Critical patent/CN102088040A/en
Publication of CN102088040A publication Critical patent/CN102088040A/en

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    • 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

Abstract

The invention discloses a double-face battery assembly which is prepared by using transparent Tedlar/PET/Tedlar (TPT) material and is suitable for the field of photo-electricity and building materials. The battery assembly is manufactured by replacing traditional blackboard glass with transparent TPT and forms a laminated structure which comprises glass, an ethylene vinyl acetate (EVA) adhesive film, batteries, an EVA adhesive film and TPT from top to bottom. Each double-face solar battery is connected with each other by interconnection strips and each double-face solar battery set is connected to a junction box by bus bars and leading-out wires. The assembly is formed by being laminated and then being added with an aluminum frame. The double-face battery assembly of the present invention is convenient for processing and possesses a beautiful appearance, and moreover the double-face battery assembly can simultaneously generate electricity on two faces. In comparison with a traditional double-layer glass assembly, the double-face battery assembly of the invention further simplifies the processing technology, and reduces the weight of the assembly thus can be more comprehensively applied to the fields of photo-electricity and building materials.

Description

双面电池组件 Double-sided battery pack

技术领域 FIELD

[0001] 本发明属于太阳能电池组件技术领域,具体涉及一种双面发电又透明的电池组件,适用于大型玻璃幕墙建筑、停车场、高速公路隔音墙等建筑上,还适用于沙漠和雪地等发电环境。 [0001] The present invention belongs to the technical field of solar cell assembly, and particularly relates to a transparent double-sided power battery pack for a large glass curtain wall, parking lot, building walls and other highway noise, and is also suitable for snow desert and other power generation environment.

背景技术 Background technique

[0002] 双面太阳能电池即电池片的正、反面,在光的照射下,都可以产生相应的功率,从而间接的增大光伏组件的功率,提高单片电池片的相应转换效率。 [0002] bifacial solar cell battery slice i.e. positive and negative, in the light irradiation, can produce a corresponding power and thereby indirectly increase the power of the PV module, to improve the conversion efficiency of the respective solar cells in a single piece. 当双面电池组件安装于建筑时,白天在太阳光的照射下可以利用组件的正面将太阳光转换为电能;晚上,反面的太阳能电池吸收室内的光线,转换为电能。 When the battery pack is attached to the double-sided construction, the sunlight during the day can be utilized front component converting sunlight into electrical energy; night, the solar cell absorbs light back chamber, into electrical energy. 这样就大大增加了组件的功率。 This greatly increases the power components.

[0003] 现有的太阳能光伏组件一般上层为高透光玻璃,下层为不透光的TPT(聚氟乙烯复合膜)背板,中间为EVA膜和太阳能电池片,该标准的光伏组件是不透明的,不适合双面电池的使用,也达不到光伏建筑一体化要求的既发电又透明的效果。 [0003] Usually conventional solar photovoltaic module upper high light-transmissive glass, the lower the TPT opaque (polyvinyl fluoride composite membrane) backsheet, and an intermediate for the EVA film solar cells, a photovoltaic module of the standard is opaque It is not suitable for use bifacial cells, but also of the effect of both power generation and less than transparent BIPV requirements. 因此传统上为了达到组件透明采光、能够两面发电的效果,往往组件采用两层玻璃进行层压。 Thus the conventional components in order to achieve light transparent, it is possible on both sides of the power generation effects, often with two layers of glass laminated assembly. 如中国专利申请号为: CN200810138159.4中,公开了一种双面光伏电池幕墙组件及其制作方法,该发明的光伏组件包括以下结构:光伏组件采用前后两层玻璃,其中顶层为太阳能超白玻璃,中间层为两层EVA胶,两层EVA胶之间夹有双面晶体硅太阳电池片。 Chinese patent application number: CN200810138159.4 discloses a double-sided photovoltaic cell wall assembly and a manufacturing method of a photovoltaic module of the invention comprises the following structure: two layers of glass before and after the use of the photovoltaic module, wherein the top layer is a solar ultra-white glass, the intermediate layer is a two-layer EVA glue, double-sided crystalline silicon solar cell is interposed between two EVA adhesive sheet.

[0004] 这种采用双玻璃结构的光伏组件解决了透光和双面电池的应用问题,但存在以下不足:现有的层压机在制作双玻组件时工艺条件较复杂,由于玻璃是热不良导体,采用两层玻璃层压,玻璃总厚度比较厚,EVA胶在抽真空、融化、层压时容易造成电池片压碎、电池片位移、双层玻璃错位、气泡等不良现象,产品成品率较难保证。 [0004] Such a photovoltaic module using a double glass structure solves the problem of light transmittance and bifacial cell applications, but the following deficiencies: the conventional double glass laminator assembly in the production process conditions complicated, since the glass is heat poor conductor, with two layers of glass laminated, the total thickness of the relatively thick glass, EVA glue vacuum, melted, likely to cause the battery crushed pieces when the laminated sheet displacement undesirable phenomena battery, double glazing dislocation, bubbles, etc., finished products rate more difficult to guarantee. 同时,双层玻璃组件自身重量较重,在一些低层建筑的遮阳棚、采光顶和采光幕墙的应用时,增加建筑成本,不具有优势。 Meanwhile, double glazing assembly itself is heavy, in the application of the awning, skylights and facade lighting some low-rise, increasing construction costs, it does not have an advantage.

发明内容 SUMMARY

[0005] 针对现有技术中存在的上述技术问题,为了简化成型工艺条件、充分利用资源、节约建筑成本的发明目的,本发明提供一种双面电池组件。 [0005] For the above technical problems present in the prior art, in order to simplify the molding process conditions, full use of resources, cost-saving construction of the object of the invention, the present invention provides a double-sided cell assembly.

[0006] 本发明解决其技术问题所采用的技术方案为: [0006] aspect of the present invention to solve the technical problem is:

双面电池组件,采用透明TPT材料代替传统的背板玻璃,所述组件由上到下依次为玻璃、EVA胶膜、双面电池片、EVA胶膜及TPT的叠层结构,每个双面太阳能电池片之间用互连条连接,每组双面太阳能电池片之间用汇流条和引出线连接到接线盒,所述组件四周安装有铝框。 Bifacial cell assembly, TPT transparent material instead of the traditional back glass plate, said lower assembly to the order by the glass, EVA film, double-sided solar cells, EVA film, and a stacked structure of TPT, each double-sided interconnection between the solar cells with the connections, between each sheet bifacial solar cell connected to the junction box with the busbar and the lead wire, the assembly installed around the aluminum block.

[0007] 其中,每组双面太阳能电池片之间连接有旁路二极管,旁路二极管与接线盒一起用灌封胶密封,并用透明硅胶固定于组件最上部的中间位置。 [0007] wherein the bypass diode is connected between each set of bifacial solar cells, together with potting seal the bypass diode and the terminal box, and a transparent silicone component is fixed to the uppermost intermediate position.

[0008] 本发明采用透明TPT材料,不但解决了双面电池的用途问题,而且简化了双面电池组件的成型工艺条件,构成的组件具有美观、成型工艺简便等优点;与传统双玻组件相比较,减轻了组件重量,进一步降低了成本,能更全面的将双面电池用在光电与建材领域中。 [0008] The present invention TPT transparent material, not only solved the problem of double-sided use of the battery, but also simplifies the molding process conditions sided cell module assembly constituted having a good appearance, convenient molding process, etc; assembly relative to conventional double glass comparing, reducing the weight of the assembly, further reducing the cost, can be more fully double-sided photovoltaic cell and building materials used in the art. 附图说明 BRIEF DESCRIPTION

[0009] 图1是本发明双面电池组件的结构示意图。 [0009] FIG. 1 is a structural diagram of the present invention is a bifacial cell assembly. 具体实施方式 Detailed ways

[0010] 下面结合附图和具体实施方式对本发明作进一步详细地说明。 [0010] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0011] 由透明TPT材料制作的双面电池组件,包括上层玻璃、底层透明背板以及中间的双面太阳能电池片1,所述双面电池组件包括6组双面太阳能电池片,每组双面太阳能电池片包括12片双面太阳能电池片1,其中每个双面太阳能电池片1之间用互连条3连接,每组双面太阳能电池片之间用汇流条4和引出线7连接到接线盒6 ;上层玻璃、底层透明背板以及双面太阳能电池片1之间用EVA层压密封粘结,组件在层压完成后再装上铝框2制作而成;铝框2为门框、窗框常用工业铝型材,接线盒电缆5与接线盒6连接。 [0011] made of a transparent material TPT bifacial cell assembly, including the upper glass, transparent underlying back sheet and an intermediate sheet bifacial solar cell 1, the cell assembly includes a 6-sided group bifacial solar cells, each bis The solar cell includes a face sheet 12 bifacial solar cell pieces 1, wherein each of the bifacial solar cell interconnector plate 3 is connected between the article 1, the connecting bus bar 4 and the lead wire 7 between each sheet bifacial solar cell 6 to the junction box; upper glass, transparent back sheet and the bottom sheet with a bifacial solar cell EVA laminated seal bonding, the assembly mounted on an aluminum frame 12 after completion of lamination made between; aluminum frame door 2 , commonly used industrial aluminum window frames, the junction box 5 and the cable 6 is connected to the junction box.

[0012] 每组双面太阳能电池片之间连接有旁路二极管,可有效的防止组件的热斑效应。 [0012] Connection between each group of two-sided solar cell bypass diodes, which can effectively prevent the hot spot effect assembly. 接线盒6采用透明硅胶固定,并使用灌封胶密封,保证了组件的防水性。 6 the junction box fixed transparent silicone, and the use of potting seal assembly to ensure the waterproof property. 接线盒采用特殊的小光伏接线盒,在保证组件电性能的同时,还能够保证组件的美观,有效的解决了常规光伏接线盒对电池背面遮挡的问题。 Small special junction box PV junction box, the electrical components to ensure the performance, it is also possible to guarantee the aesthetic component, effectively solves the problems of the conventional junction boxes for solar battery backside occlusion.

[0013] 本实施例的光伏电池组件上层玻璃设置为超白钢化玻璃,并设置6组、每组包括12片双面太阳能电池片1,共72片电池片。 [0013] The photovoltaic cell assembly of the present embodiment is provided with upper glass ultra-white glass, and disposed in six sets, each comprising 12 bifacial solar cell substrate 1, a total of 72 solar cells. 双面太阳能电池片1选择了正面17.洲转换效率,背面12. 8%转换效率的双面单晶硅太阳能电池片,采用72片电池片,封装出来的组件功率是,(在大气质量AMI. 5,温度在25°C,光强1000W/m2)正面是176W,背面是140W,总体的功率为316W。 Bifacial solar cell 1 is selected front sheet 17. Island conversion efficiency, 12.8% conversion efficiency of the back surface of the double-sided single-crystal silicon solar cells, using 72 cells, encapsulated components out of the power is (air quality in the AMI 5, at a temperature of 25 ° C, light intensity of 1000W / m2) is a front 176W, 140W is the back, the overall power of 316W. 而普通的单晶单面电池组件,用此转换效率的电池片,只能达到185W。 Ordinary single-sided single-crystal battery pack, with the conversion efficiency of this solar cells, can only reach 185W. 所以与单面组件相比,本发明的双面电池功率增加了131W。 Components compared with the single-sided, double-sided battery power according to the present invention increases the 131W.

[0014] 本发明的双面电池组件的层压工艺与常规组件相同。 [0014] The double-sided lamination process of the present invention the battery pack with the same conventional components. 在实际应用时,该组件较适合沙漠和雪地等环境使用,组件正面在利用太阳辐射发电的同时,组件背面还可以利用地面的背景辐射来发电,这样就增加了组件的单位转换效率。 In practice, the assembly is more suitable for environments such as deserts and snow, positive components in power generation using solar radiation at the same time, the components can also use the back ground of background radiation to generate electricity, which increases the conversion efficiency of the module units. 当组件应用于建筑物时,可以选择如下的使用方式:白天光线充足,选择组件正面使用,可以产生较多的电能;晚上使用组件的反面,可以利用室内的灯光来产生电能。 When the assembly is applied to the building, use can be selected as follows: sufficient light during the day, the use of positive selection component can generate more electrical energy; using assembly reverse the evening, the indoor lighting can generate electrical energy.

Claims (4)

1.双面电池组件,其特征在于,采用透明TPT材料代替传统的背板玻璃,所述组件由上到下依次为玻璃、EVA胶膜、双面电池片(1)、EVA胶膜及TPT的叠层结构,每个双面太阳能电池片(1)之间用互连条(3)连接,每组双面太阳能电池片(1)之间用汇流条(4)和引出线(7)连接到接线盒(6),所述组件四周安装有铝框(2)。 1. bifacial cell assembly, characterized in that the transparent material instead of the traditional TPT back glass plate, said lower assembly to the order by the glass, EVA film, a bifacial cell sheet (. 1), EVA film and TPT the laminate structure between each of the bifacial solar cell sheet (1) are interconnected by strips (3) connected to each bus bar (4) and the lead wire between the bifacial solar cell substrate (1) (7) to the junction box (6), the aluminum component installed around the frame (2).
2.根据权利要求1所述的双面电池组件,其特征在于:所述每组双面太阳能电池片(1)之间连接有旁路二极管,旁路二极管与接线盒(6) —起用灌封胶密封,并用透明硅胶固定于组件最上部的中间位置。 The double-sided cell assembly according to claim 1, wherein: the bypass diode connecting the bypass diode and the junction box (6) between the bifacial solar cell sheet of each group (1) - hired Irrigation sealed plastic seal, and a transparent silicone component is fixed to the uppermost intermediate position.
3.根据权利要求2所述的双面电池组件,其特征在于:所述双面电池组件包括6组双面太阳能电池片(1),每组包括12片双面太阳能电池片(1)。 3. The assembly of claim 2 bifacial cell as claimed in claim wherein: said battery assembly comprises a double-sided bifacial solar cell sheet group 6 (1), each comprising 12 bifacial solar cell sheet (1).
4.根据权利要求1、2或3所述的双面电池组件,其特征在于:所述组件的上层玻璃为超白钢化玻璃,所述双面太阳能电池片(1)为双面单晶硅太阳能电池片。 The bifacial cell assembly of claim 2 or claim 3, wherein: the assembly of the upper glass ultra-white glass, a bifacial solar cell sheet (1) is a two-sided monocrystalline silicon solar cells.
CN 201010580581 2010-12-09 2010-12-09 Double-face battery assembly CN102088040A (en)

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