WO2019178724A1 - 一种减震型光伏背板 - Google Patents

一种减震型光伏背板 Download PDF

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Publication number
WO2019178724A1
WO2019178724A1 PCT/CN2018/079480 CN2018079480W WO2019178724A1 WO 2019178724 A1 WO2019178724 A1 WO 2019178724A1 CN 2018079480 W CN2018079480 W CN 2018079480W WO 2019178724 A1 WO2019178724 A1 WO 2019178724A1
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Prior art keywords
metal substrate
grooves
elastic strips
metal
resin layer
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PCT/CN2018/079480
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English (en)
French (fr)
Inventor
耿佳乐
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海门市月彩纺织科技有限公司
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Application filed by 海门市月彩纺织科技有限公司 filed Critical 海门市月彩纺织科技有限公司
Priority to PCT/CN2018/079480 priority Critical patent/WO2019178724A1/zh
Priority to KR1020187037913A priority patent/KR102133577B1/ko
Publication of WO2019178724A1 publication Critical patent/WO2019178724A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor 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
    • H01L31/02—Details
    • H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor 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
    • H01L31/04—Semiconductor 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
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor 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
    • H01L31/04—Semiconductor 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
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/049—Protective back sheets
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the invention relates to the technical field of photovoltaic cells, in particular to a shock-absorbing photovoltaic backsheet.
  • crystalline silicon solar cells have been widely used due to their high efficiency and mature manufacturing process.
  • Corresponding crystalline silicon solar modules usually include tempered glass, glue layer, battery sheet layer, glue layer and solar battery back plate.
  • the solar battery back plate is located at the back of the solar cell module to protect and support the battery sheet and has reliable performance. Insulation, water resistance, aging resistance.
  • a commonly used solar cell backsheet is a TPT backsheet which is formed by a three-layer film of polyvinyl fluoride, polyethylene terephthalate, and polyvinyl fluoride bonded by a glue and hot pressed.
  • the existing TPT backplane has poor thermal conductivity and cannot support and protect the solar cell panel, thereby affecting the service life of the corresponding solar cell module.
  • the upper surface of the first metal substrate is provided with a plurality of first trenches arranged in parallel, and a bottom surface of the first trench is curved;
  • An outer weather resistant resin layer the outer weather resistant resin layer being disposed on a lower surface of the first metal substrate;
  • the lower surface of the second metal substrate is provided with a plurality of second grooves arranged in parallel corresponding to each of the first grooves, and an upper surface of the second metal substrate is provided with a plurality of parallel-arranged third grooves corresponding to each of the second grooves, the bottom surfaces of the second grooves and the third grooves are curved, and the other portion of the first elastic strip Embedded in the second trench, having a first gap between the adjacent first elastic strips exposing the first metal substrate and the second metal substrate;
  • a third metal substrate a lower surface of the third metal substrate is provided with a plurality of fourth grooves arranged in parallel corresponding to each of the third grooves, and a bottom surface of the fourth groove is curved Another portion of the second elastic strip is embedded in the fourth groove, and a second gap between the adjacent second elastic strips exposing the second metal substrate and the third metal substrate;
  • the inner weather resistant resin layer is provided on the upper surface of the third metal substrate.
  • the damper type photovoltaic back sheet further, the material of the first, second, and third metal substrates is aluminum, copper, iron, aluminum-magnesium alloy or stainless steel, and the first, second, and third metal substrates The thickness is 200-400 microns.
  • the damper type photovoltaic back sheet further, the first elastic strip and the second elastic strip comprise a metal core, a rubber layer disposed on the surface of the metal core, a metal plating layer disposed on the surface of the rubber layer, the first elasticity
  • the strip and the second elastic strip have a diameter of 300-500 microns.
  • the damping metal type photovoltaic backing plate further has a material of aluminum, copper, iron, aluminum-magnesium alloy or stainless steel, and the metal plating layer is made of copper, nickel, silver or chromium.
  • the shock-absorbing photovoltaic back sheet, further, the outer weather resistant resin layer and the inner weather resistant resin layer are made of polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride or ethylene-tetrafluoroethylene.
  • the ethylene copolymer, the outer weather resistant resin layer and the inner weather resistant resin layer each have a thickness of 60 to 90 ⁇ m.
  • the damping type photovoltaic backing plate further has a spacing of adjacent first elastic strips of 400-800 micrometers and a spacing of adjacent second elastic strips of 400-800 micrometers.
  • the damping type photovoltaic backing plate further, wherein the first, second, third, and fourth grooves have the same maximum depth, and the first and second elastic strips have the same diameter, the first, The ratio of the maximum depth of the second, third, and fourth grooves to the diameter of the first and second elastic strips is 0.2-0.3.
  • the elastic strip has excellent elasticity and stability by optimizing the structure, material and size of the elastic strip.
  • the shock absorbing photovoltaic back plate has excellent shock absorbing performance, effectively avoiding damage of the photovoltaic module due to collision, and simultaneously providing a plurality of gaps between the adjacent elastic strips exposing the metal substrate, which can effectively corresponding the photovoltaic module
  • the heat generated during the work is dissipated through the gap, and the improved corresponding photovoltaic module has excellent heat dissipation performance.
  • the structure of the shock absorbing back plate of the invention is a laminated structure, and the design of the two rows of elastic strips can make the shock absorbing effect better, and the bottom surface of the groove in the metal substrate is curved, which increases the contact between the elastic strip and the metal substrate. The area makes the contact between the elastic strip and the metal substrate firmer.
  • FIG. 1 is a schematic structural view of a shock absorbing photovoltaic back sheet of the present invention.
  • FIG. 2 is a schematic cross-sectional view of the first and second elastic strips of the present invention.
  • the present invention provides a damped photovoltaic backplane, comprising: a first metal substrate 1 , the upper surface of the first metal substrate 1 is provided with a plurality of first trenches 11 arranged in parallel, The bottom surface of the first trench 11 has an arc shape; an outer weather resistant resin layer 2, the outer weather resistant resin layer 2 is disposed on a lower surface of the first metal substrate 1, and a plurality of first elastic strips 3, each of which is a portion of the first elastic strip 3 is embedded in the corresponding first trench 11; a second metal substrate 4, the lower surface of the second metal substrate 4 is disposed corresponding to each of the first trenches 11 a plurality of second grooves 41 arranged in parallel, the upper surface of the second metal substrate 4 is provided with a plurality of third grooves 42 arranged in parallel corresponding to each of the second grooves 41, The bottom surface of the second groove 41 and the third groove 42 are both curved, and another portion of the first elastic strip 3 is embedded in the second groove 41 between adjacent first elastic strips
  • the first, second, and third metal substrates (1, 4, 7) are made of aluminum, copper, iron, aluminum-magnesium alloy or stainless steel, and the first, second, and third metal substrates are The thickness of (1, 4, 7) is 200-400 microns. If the metal substrate is too thin, the supporting performance is poor. When the metal substrate is too thick, it takes up more space, and the overall thickness of the backing plate is thicker, which increases the manufacturing cost.
  • the first elastic strip 3 and the second elastic strip 6 each include a metal core 361, a rubber layer 362 disposed on the surface of the metal core 361, and a metal disposed on the surface of the rubber layer 362.
  • the plating layer 363, the first elastic strip 3 and the second elastic strip 6 have a diameter of 300-500 micrometers, and the metal core 361 is made of aluminum, copper, iron, aluminum-magnesium alloy or stainless steel, and the metal plating layer
  • the material of 363 is copper, nickel, silver or chrome.
  • the elastic strip of the above structure has excellent seismic performance, and the presence of the metal core can improve the mechanical strength of the elastic strip, thereby improving the service life thereof, and the presence of the metal plating layer can prevent the rubber layer from aging due to illumination.
  • the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 are made of polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride or ethylene-tetrafluoroethylene copolymer.
  • the thickness of the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 are both 60 to 90 ⁇ m.
  • the spacing of the adjacent first elastic strips 3 is 400-800 micrometers
  • the spacing of adjacent second elastic strips 6 is 400-800 micrometers
  • the spacing of adjacent elastic strips is too large, resulting in a decrease in the number of elastic strips.
  • the damping performance of the photovoltaic backplane is affected, and the spacing of adjacent elastic strips is too small, which will affect the heat dissipation performance of the photovoltaic backplane.
  • the first, second, third, and fourth grooves (11, 41, 42, 71) have the same maximum depth h, and the first and second elastic strips (3, 6) have the same diameter.
  • the present invention provides a damped photovoltaic backplane, comprising: a first metal substrate 1 , the upper surface of the first metal substrate 1 is provided with a plurality of first trenches 11 arranged in parallel, The bottom surface of the first trench 11 has an arc shape; an outer weather resistant resin layer 2, the outer weather resistant resin layer 2 is disposed on a lower surface of the first metal substrate 1, and a plurality of first elastic strips 3, each of which is a portion of the first elastic strip 3 is embedded in the corresponding first trench 11; a second metal substrate 4, the lower surface of the second metal substrate 4 is disposed corresponding to each of the first trenches 11 a plurality of second grooves 41 arranged in parallel, the upper surface of the second metal substrate 4 is provided with a plurality of third grooves 42 arranged in parallel corresponding to each of the second grooves 41, The bottom surface of the second groove 41 and the third groove 42 are both curved, and another portion of the first elastic strip 3 is embedded in the second groove 41 between adjacent first elastic strips
  • the material of the first, second, and third metal substrates (1, 4, 7) is aluminum, and the thickness of the first, second, and third metal substrates (1, 4, 7) is 300 micrometers.
  • the first elastic strip 3 and the second elastic strip 6 each include a metal core 361, a rubber layer 362 disposed on the surface of the metal core 361, and a metal plating layer 363 disposed on the surface of the rubber layer 362.
  • the first elastic strip 3 and the second elastic strip 6 have a diameter of 400 ⁇ m, the metal core 361 is made of aluminum, and the metal plating layer 363 is made of copper.
  • the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 are made of polytetrafluoroethylene, and the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 each have a thickness of 80 ⁇ m.
  • the spacing between adjacent first elastic strips 3 is 600 micrometers, and the spacing of adjacent second elastic strips 6 is 600 micrometers.
  • the first, second, third, and fourth grooves (11, 41, 42, 71) have the same maximum depth h, and the first and second elastic strips (3, 6) have the same diameter.
  • the ratio of the maximum depth h of the first, second, third, and fourth grooves (11, 41, 42, 71) to the diameters of the first and second elastic strips (3, 6) is 0.25.
  • This embodiment provides another damper type photovoltaic backplane, which is different from the first embodiment in that the material of the first, second, and third metal substrates (1, 4, 7) is copper.
  • the first, second, and third metal substrates (1, 4, 7) have a thickness of 400 ⁇ m.
  • the first elastic strips 3 and the second elastic strips 6 each include a metal core 361. a rubber layer 362 disposed on the surface of the metal core 361, a metal plating layer 363 disposed on the surface of the rubber layer 362, the first elastic strip 3 and the second elastic strip 6 having a diameter of 500 ⁇ m, and the metal core 361
  • the material is copper, and the metal plating layer 363 is made of nickel.
  • the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 are made of polyvinylidene fluoride, and the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 each have a thickness of 90 ⁇ m.
  • the spacing between adjacent first elastic strips 3 is 800 micrometers
  • the spacing of adjacent second elastic strips 6 is 800 micrometers
  • the first, second, third, and fourth grooves (11, 41, 42, 71)
  • the maximum depth h is the same
  • the diameters of the first and second elastic strips (3, 6) are the same
  • the ratio of the maximum depth h to the diameter of the first and second elastic strips (3, 6) is 0.3.
  • This embodiment provides another damper type photovoltaic backplane, which is different from the first embodiment in that the first, second, and third metal substrates (1, 4, 7) are made of stainless steel.
  • the first, second, and third metal substrates (1, 4, 7) have a thickness of 200 ⁇ m.
  • the first elastic strip 3 and the second elastic strip 6 each include a metal core 361, a rubber layer 362 disposed on the surface of the metal core 361, and a metal plating layer 363 disposed on the surface of the rubber layer 362.
  • the first elastic strip 3 and the second elastic strip 6 have a diameter of 300 ⁇ m, the metal core 361 is made of iron, and the metal plating layer 363 is made of chromium.
  • the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 are made of an ethylene-tetrafluoroethylene copolymer, and the outer weather resistant resin layer 2 and the inner weather resistant resin layer 9 each have a thickness of 60 ⁇ m.
  • the spacing between adjacent first elastic strips 3 is 400 micrometers
  • the spacing of adjacent second elastic strips 6 is 400 micrometers
  • the first, second, third, and fourth grooves (11, 41, 42, 71)
  • the maximum depth h is the same
  • the diameters of the first and second elastic strips (3, 6) are the same
  • the ratio of the maximum depth h to the diameter of the first and second elastic strips (3, 6) is 0.2.

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Abstract

一种减震型光伏背板，包括外耐候树脂层（2）、第一金属基板（1）、多个第一弹性条（3）、第二金属基板（4）、多个第二弹性条（6）、第三金属基板（7）、内耐候树脂层（9）。该减震型光伏背板减震性能好，能有效避免因为碰撞而造成的光伏组件的损坏，进而可以提高相应光伏组件的稳定性。

Description

一种减震型光伏背板 技术领域
本发明涉及光伏电池技术领域，特别是涉及减震型光伏背板。
背景技术
随着工业的高度发展和人口的持续增长，对能源的需求也急剧增加，其中煤炭和石油是最主要的能源材料。然而地球上的煤炭和石油总储藏量有限且不可再生，因而全球面临着严峻的能源问题。同时煤炭和石油的使用过程中也会造成严重的环境污染，给我们的地球造成了巨大的灾难。只有可再生能源的大规模利用以替代煤炭和石油，才能促进人类社会的可持续发展。太阳能是来自于太阳内部的核聚变所蕴藏着的、并能爆发向外辐射的能量，与传统能源相比，太阳能取之不尽，用之不竭。目前人类利用太阳能的主要方式为光能转换为热能或者光能转换为电能(光伏发电)。
在现有的各类太阳能电池中，晶体硅太阳能电池由于效率高、制造工艺成熟而得到广泛的应用。相应的晶体硅太阳能组件通常包括钢化玻璃、胶层、电池片层、胶层以及太阳能电池电池背板，太阳能电池背板位于太阳能电池组件的背面，对电池片起保护和支撑作用，具有可靠的绝缘性、阻水性、耐老化性。常用的太阳能电池背板为TPT背板，该TPT背板是由聚氟乙烯、聚对苯二甲酸乙二醇酯、聚氟乙烯三层独立的薄膜通过胶水粘结并进行热压形成的。现有的TPT背板导热性能较差，且不能良好的支撑以及保护太阳能电池片，进而影响相应太阳能电池组件的使用寿命。
发明内容
本发明的目的是克服上述现有技术的不足，提供一种减震型光伏背板。
为实现上述目的，本发明提出的一种减震型光伏背板，包括：
第一金属基板，所述第一金属基板的上表面设置有多个平行排列的第一沟槽，所述第一沟槽的底面呈弧形；
外耐候树脂层，所述外耐候树脂层设置于所述第一金属基板的下表面；
多个第一弹性条，每个所述第一弹性条的一部分嵌入到相应的所述第一沟槽中；
第二金属基板，所述第二金属基板的下表面设置有与每个所述第一沟槽相对应的多个平行排列的第二沟槽，所述第二金属基板的上表面设置有与每个所述第二沟槽相对应的多个平行排列的第三沟槽，所述第二沟槽和所述第三沟槽的底面均呈弧形，所述第一弹性条的另一部分嵌入到所述第二沟槽中，相邻第一弹性条之间具有暴露所述第一金属基板和所述第二金属基板的第一空隙；
多个第二弹性条，每个所述第二弹性条的一部分嵌入到相应的所述第三沟槽中；
第三金属基板，所述第三金属基板的下表面设置有与每个所述第三沟槽相对应的多个平行排列的第四沟槽，所述第四沟槽的底面呈弧形，所述第二弹性条的另一部分嵌入到所述第四沟槽中，相邻第二弹性条之间具有暴露所述第二金属基板和所述第三金属基板的第二空隙；
内耐候树脂层，所述内耐候树脂层设置于所述第三金属基板的上表面。
如上减震型光伏背板，进一步，所述第一、第二、第三金属基板的材质为铝、铜、铁、铝镁合金或不锈钢，所述第一、第二、第三金属基板的厚度为200-400微米。
如上减震型光伏背板，进一步，所述第一弹性条和所述第二弹性条包括金属芯，设置于金属芯表面的橡胶层，设置于橡胶层表面的金属镀层，所述第一弹性条和所述第二弹性条的直径为300-500微米。
如上减震型光伏背板，进一步，所述金属芯的材质为铝、铜、铁、铝镁合金或不锈钢，所述金属镀层的材质为铜、镍、银或铬。
如上减震型光伏背板，进一步，所述外耐候树脂层和所述内耐候树脂层的材质为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、聚氟乙烯或乙烯-四 氟乙烯共聚物，所述外耐候树脂层和所述内耐候树脂层的厚度均为60-90微米。
如上减震型光伏背板，进一步，相邻第一弹性条的间距为400-800微米，相邻第二弹性条的间距为400-800微米。
如上减震型光伏背板，进一步，所述第一、第二、第三、第四沟槽的最大深度相同，所述第一、第二弹性条的直径相同，所述所述第一、第二、第三、第四沟槽的最大深度与所述第一、第二弹性条直径的比值为0.2-0.3。
与现有技术相比，本发明的有益效果在于:
本发明的减震型背板中，通过在三个相邻的金属基板之间设置两个弹性条，通过优化弹性条的结构、材质和尺寸，使得弹性条具有优异的弹性和稳固性，进而使得该减震型光伏背板具有优异的减震性能，有效避免因为碰撞而造成光伏组件的损坏，同时在相邻弹性条之间设置有暴露金属基板的多个空隙，可以有效将相应光伏组件在工作过程中产生的热量通过该间隙之间散出，提高的相应光伏组件具有优异的散热性能。本发明的减震型背板的结构为叠层结构，两排弹性条的设计可以使得减震效果更好，金属基板中沟槽的底面呈弧形，增大了弹性条与金属基板的接触面积，使得弹性条与金属基板的接触更牢固，通过优化背板各部件的材质和具体尺寸，有效提高了背板的抗震性能和散热性能，进而可以提高相应光伏组件的稳定性，延长该光伏组件的使用寿命。
附图说明
图1为本发明的减震型光伏背板的结构示意图。
图2为本发明的第一、第二弹性条的截面示意图。
具体实施方式
如图1所示，本发明提出一种减震型光伏背板，包括：第一金属基板1，所述第一金属基板1的上表面设置有多个平行排列的第一沟槽11，所述第一沟槽11的底面呈弧形；外耐候树脂层2，所述外耐候树脂层2设置于所 述第一金属基板1的下表面；多个第一弹性条3，每个所述第一弹性条3的一部分嵌入到相应的所述第一沟槽11中；第二金属基板4，所述第二金属基板4的下表面设置有与每个所述第一沟槽11相对应的多个平行排列的第二沟槽41，所述第二金属基板4的上表面设置有与每个所述第二沟槽41相对应的多个平行排列的第三沟槽42，所述第二沟槽41和所述第三沟槽42的底面均呈弧形，所述第一弹性条3的另一部分嵌入到所述第二沟槽41中，相邻第一弹性条3之间具有暴露所述第一金属基板1和所述第二金属基板4的第一空隙5；多个第二弹性条6，每个所述第二弹性条6的一部分嵌入到相应的所述第三沟槽42中；第三金属基板7，所述第三金属基板7的下表面设置有与每个所述第三沟槽42相对应的多个平行排列的第四沟槽71，所述第四沟槽71的底面呈弧形，所述第二弹性条6的另一部分嵌入到所述第四沟槽71中，相邻第二弹性条6之间具有暴露所述第二金属基板4和所述第三金属基板7的第二空隙8；内耐候树脂层9，所述内耐候树脂层9设置于所述第三金属基板7的上表面。
较佳的，所述第一、第二、第三金属基板(1,4,7)的材质为铝、铜、铁、铝镁合金或不锈钢，所述第一、第二、第三金属基板(1,4,7)的厚度为200-400微米。金属基板太薄则支撑性能较差，金属基板太厚则会占用较多的空间，进而使得背板的整体厚度较厚，增加了制造成本。较佳的，如图2所示，所述第一弹性条3和所述第二弹性条6均包括金属芯361，设置于金属芯361表面的橡胶层362，设置于橡胶层362表面的金属镀层363，所述第一弹性条3和所述第二弹性条6的直径为300-500微米，所述金属芯361的材质为铝、铜、铁、铝镁合金或不锈钢，所述金属镀层363的材质为铜、镍、银或铬。上述结构的弹性条具有优异的抗震性能，且金属芯的存在可以提高弹性条的机械强度，进而提高其使用寿命，金属镀层的存在则可以避免橡胶层因光照而老化。较佳的，所述外耐候树脂层2和所述内耐候树脂层9的材质为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、聚氟乙烯 或乙烯-四氟乙烯共聚物，所述外耐候树脂层2和所述内耐候树脂层9的厚度均为60-90微米。较佳的，相邻第一弹性条3的间距为400-800微米，相邻第二弹性条6的间距为400-800微米，相邻弹性条的间距太大，导致弹性条的数量减少，进而影响光伏背板的减震性能，相邻弹性条的间距太小，将会影响光伏背板的散热性能。较佳的所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h相同，所述第一、第二弹性条(3,6)的直径相同，所述所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h与所述第一、第二弹性条(3,6)直径的比值为0.2-0.3，在该数值范围内，一方面可以确保弹性条充分粘结于金属基板内，另一方面又可以确保第一间隙5和第二间隙8具有足够的高度，进而提高该光伏背板的散热性能。
实施例1
如图1所示，本发明提出一种减震型光伏背板，包括：第一金属基板1，所述第一金属基板1的上表面设置有多个平行排列的第一沟槽11，所述第一沟槽11的底面呈弧形；外耐候树脂层2，所述外耐候树脂层2设置于所述第一金属基板1的下表面；多个第一弹性条3，每个所述第一弹性条3的一部分嵌入到相应的所述第一沟槽11中；第二金属基板4，所述第二金属基板4的下表面设置有与每个所述第一沟槽11相对应的多个平行排列的第二沟槽41，所述第二金属基板4的上表面设置有与每个所述第二沟槽41相对应的多个平行排列的第三沟槽42，所述第二沟槽41和所述第三沟槽42的底面均呈弧形，所述第一弹性条3的另一部分嵌入到所述第二沟槽41中，相邻第一弹性条3之间具有暴露所述第一金属基板1和所述第二金属基板4的第一空隙5；多个第二弹性条6，每个所述第二弹性条6的一部分嵌入到相应的所述第三沟槽42中；第三金属基板7，所述第三金属基板7的下表面设置有与每个所述第三沟槽42相对应的多个平行排列的第四沟槽71，所述第四沟槽71的底面呈弧形，所述第二弹性条6的另一部分嵌入到所述第四沟槽71中，相邻第二弹性条6之间具有暴露所述第二金属基板4和所述 第三金属基板7的第二空隙8；内耐候树脂层9，所述内耐候树脂层9设置于所述第三金属基板7的上表面。
其中，所述第一、第二、第三金属基板(1,4,7)的材质为铝，所述第一、第二、第三金属基板(1,4,7)的厚度为300微米。如图2所示，所述第一弹性条3和所述第二弹性条6均包括金属芯361，设置于金属芯361表面的橡胶层362，设置于橡胶层362表面的金属镀层363，所述第一弹性条3和所述第二弹性条6的直径为400微米，所述金属芯361的材质为铝，所述金属镀层363的材质为铜。所述外耐候树脂层2和所述内耐候树脂层9的材质为聚四氟乙烯，所述外耐候树脂层2和所述内耐候树脂层9的厚度均为80微米。相邻第一弹性条3的间距为600微米，相邻第二弹性条6的间距为600微米。所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h相同，所述第一、第二弹性条(3,6)的直径相同，所述所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h与所述第一、第二弹性条(3,6)直径的比值为0.25。
实施例2
本实施例提供另一种减震型光伏背板，与实施例1相比，区别仅在于，所述第一、第二、第三金属基板(1,4,7)的材质为铜，所述第一、第二、第三金属基板(1,4,7)的厚度为400微米，如图2所示，所述第一弹性条3和所述第二弹性条6均包括金属芯361，设置于金属芯361表面的橡胶层362，设置于橡胶层362表面的金属镀层363，所述第一弹性条3和所述第二弹性条6的直径为500微米，所述金属芯361的材质为铜，所述金属镀层363的材质为镍。所述外耐候树脂层2和所述内耐候树脂层9的材质为聚偏氟乙烯，所述外耐候树脂层2和所述内耐候树脂层9的厚度均为90微米。相邻第一弹性条3的间距为800微米，相邻第二弹性条6的间距为800微米，所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h相同，所述第一、第二弹性条(3,6)的直径相同，所述所述第一、第二、第三、 第四沟槽(11,41,42,71)的最大深度h与所述第一、第二弹性条(3,6)直径的比值为0.3。
实施例3
本实施例提供另一种减震型光伏背板，与实施例1相比，区别仅在于，所述第一、第二、第三金属基板(1,4,7)的材质为不锈钢，所述第一、第二、第三金属基板(1,4,7)的厚度为200微米。如图2所示，所述第一弹性条3和所述第二弹性条6均包括金属芯361，设置于金属芯361表面的橡胶层362，设置于橡胶层362表面的金属镀层363，所述第一弹性条3和所述第二弹性条6的直径为300微米，所述金属芯361的材质为铁，所述金属镀层363的材质为铬。所述外耐候树脂层2和所述内耐候树脂层9的材质为乙烯-四氟乙烯共聚物，所述外耐候树脂层2和所述内耐候树脂层9的厚度均为60微米。相邻第一弹性条3的间距为400微米，相邻第二弹性条6的间距为400微米，所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h相同，所述第一、第二弹性条(3,6)的直径相同，所述所述第一、第二、第三、第四沟槽(11,41,42,71)的最大深度h与所述第一、第二弹性条(3,6)直径的比值为0.2。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (7)

  1. 一种减震型光伏背板，其特征在于：包括：
    第一金属基板，所述第一金属基板的上表面设置有多个平行排列的第一沟槽，所述第一沟槽的底面呈弧形；
    外耐候树脂层，所述外耐候树脂层设置于所述第一金属基板的下表面；
    多个第一弹性条，每个所述第一弹性条的一部分嵌入到相应的所述第一沟槽中；
    第二金属基板，所述第二金属基板的下表面设置有与每个所述第一沟槽相对应的多个平行排列的第二沟槽，所述第二金属基板的上表面设置有与每个所述第二沟槽相对应的多个平行排列的第三沟槽，所述第二沟槽和所述第三沟槽的底面均呈弧形，所述第一弹性条的另一部分嵌入到所述第二沟槽中，相邻第一弹性条之间具有暴露所述第一金属基板和所述第二金属基板的第一空隙；
    多个第二弹性条，每个所述第二弹性条的一部分嵌入到相应的所述第三沟槽中；
    第三金属基板，所述第三金属基板的下表面设置有与每个所述第三沟槽相对应的多个平行排列的第四沟槽，所述第四沟槽的底面呈弧形，所述第二弹性条的另一部分嵌入到所述第四沟槽中，相邻第二弹性条之间具有暴露所述第二金属基板和所述第三金属基板的第二空隙；
    内耐候树脂层，所述内耐候树脂层设置于所述第三金属基板的上表面。
  2. 根据权利要求1所述的减震型光伏背板，其特征在于：所述第一、第二、第三金属基板的材质为铝、铜、铁、铝镁合金或不锈钢，所述第一、第二、第三金属基板的厚度为200-400微米。
  3. 根据权利要求1所述的减震型光伏背板，其特征在于：所述第一弹性条和所述第二弹性条包括金属芯，设置于金属芯表面的橡胶层，设置于橡胶层表面的金属镀层，所述第一弹性条和所述第二弹性条的直径为300-500 微米。
  4. 根据权利要求3所述的减震型光伏背板，其特征在于：所述金属芯的材质为铝、铜、铁、铝镁合金或不锈钢，所述金属镀层的材质为铜、镍、银或铬。
  5. 根据权利要求1所述的减震型光伏背板，其特征在于：所述外耐候树脂层和所述内耐候树脂层的材质为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、聚氟乙烯或乙烯-四氟乙烯共聚物，所述外耐候树脂层和所述内耐候树脂层的厚度均为60-90微米。
  6. 根据权利要求1所述的减震型光伏背板，其特征在于：相邻第一弹性条的间距为400-800微米，相邻第二弹性条的间距为400-800微米。
  7. 根据权利要求1所述的减震型光伏背板，其特征在于：所述第一、第二、第三、第四沟槽的最大深度相同，所述第一、第二弹性条的直径相同，所述所述第一、第二、第三、第四沟槽的最大深度与所述第一、第二弹性条直径的比值为0.2-0.3。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1265972A (zh) * 1999-03-03 2000-09-13 托马斯约瑟夫亨巴赫有限公司 压垫
US20020061692A1 (en) * 1996-10-17 2002-05-23 Helge G. Steckmann Flat composite fabric with memory metal and its applications
CN203674230U (zh) * 2013-12-20 2014-06-25 常州市中航复合材料有限公司 新型蜂窝结构太阳能背板
CN104441804A (zh) * 2015-01-06 2015-03-25 浙江华川实业集团有限公司 一种再生防火阻燃瓦楞纸及其制备方法
CN204914734U (zh) * 2015-08-14 2015-12-30 嘉兴富胜达染整有限公司 新型亲肤透气型纤维织物
CN206932540U (zh) * 2017-07-06 2018-01-26 苏州威力士精细化工有限公司 一种开设有吸波缓冲结构的石墨导热硅胶片

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014192455A (ja) * 2013-03-28 2014-10-06 Fujifilm Corp 太陽電池モジュール
JP2015046440A (ja) * 2013-08-27 2015-03-12 株式会社小糸製作所 太陽電池モジュール
CN206551586U (zh) * 2016-12-26 2017-10-13 浙江龙游展宇有机玻璃有限公司 一种太阳能高强度亚克力板

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020061692A1 (en) * 1996-10-17 2002-05-23 Helge G. Steckmann Flat composite fabric with memory metal and its applications
CN1265972A (zh) * 1999-03-03 2000-09-13 托马斯约瑟夫亨巴赫有限公司 压垫
CN203674230U (zh) * 2013-12-20 2014-06-25 常州市中航复合材料有限公司 新型蜂窝结构太阳能背板
CN104441804A (zh) * 2015-01-06 2015-03-25 浙江华川实业集团有限公司 一种再生防火阻燃瓦楞纸及其制备方法
CN204914734U (zh) * 2015-08-14 2015-12-30 嘉兴富胜达染整有限公司 新型亲肤透气型纤维织物
CN206932540U (zh) * 2017-07-06 2018-01-26 苏州威力士精细化工有限公司 一种开设有吸波缓冲结构的石墨导热硅胶片

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