CN204271101U - A kind of synergistic solar cell back sheet with PE weather-resistant layer - Google Patents
A kind of synergistic solar cell back sheet with PE weather-resistant layer Download PDFInfo
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- 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
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Abstract
Description
技术领域 technical field
本实用新型涉及太阳能电池背板技术领域，具体涉及一种具有PE耐候层的增效型太阳能电池背板。 The utility model relates to the technical field of solar cell backboards, in particular to a synergistic solar cell backboard with a PE weather-resistant layer.
背景技术 Background technique
随着传统能源的日益贫乏，全球对新型能源的开发与利用越来越成为举世关注的焦点，太阳能作为新型能源具有取之不尽、用之不竭，无污染、无公害的特点而被受全球关注，并实现能源转化的产业化。目前的商业化晶体硅太阳能电池主要吸收利用400-700nm的可见光，对于低于400nm的紫外波段的光基本不吸收利用，造成部分太阳光的能量不能被有效利用，这在一定程度上影响了太阳能电池的效率，使得当前商业化晶体硅太阳能电池的效率基本处在14%-17%，在现有的商业化晶体硅的生产技术水平下难有更大程度的提高。通过转化利用现有电池片无法转化的光波，拓宽对太阳光谱吸收转化范围，将可以更好的挖掘晶体硅电池片的潜能，通过增加很小的投入产生更大的效益，对光伏产业的发展具有深远的影响。 With the increasing scarcity of traditional energy sources, the development and utilization of new energy sources around the world has increasingly become the focus of worldwide attention. Global attention, and realize the industrialization of energy transformation. The current commercial crystalline silicon solar cells mainly absorb and utilize visible light of 400-700nm, and basically do not absorb and utilize light in the ultraviolet band below 400nm, resulting in part of the energy of sunlight not being effectively utilized, which affects solar energy to a certain extent. The efficiency of the cell makes the efficiency of the current commercial crystalline silicon solar cells basically at 14%-17%, and it is difficult to improve to a greater extent under the current production technology level of commercial crystalline silicon. By converting and utilizing the light waves that cannot be converted by existing solar cells and broadening the range of absorption and transformation of the solar spectrum, the potential of crystalline silicon solar cells can be better tapped, and greater benefits can be generated by increasing a small investment, which is beneficial to the development of the photovoltaic industry. have far-reaching consequences.
太阳能电池背板对太阳能电池组件的光电转换效率有影响，现有技术中的太阳能电池背板制作的太阳能电池组件的光电转换效率低。 The solar cell back sheet has an influence on the photoelectric conversion efficiency of the solar cell assembly, and the photoelectric conversion efficiency of the solar cell assembly made of the solar cell back sheet in the prior art is low.
发明内容 Contents of the invention
为了克服现有技术中存在的缺点和不足，本实用新型的目的在于提供一种具有PE耐候层的增效型太阳能电池背板，该背板的光电转换效率高，且耐候性好。 In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a synergistic solar battery back sheet with a PE weather-resistant layer, which has high photoelectric conversion efficiency and good weather resistance.
本实用新型的目的通过下述技术方案实现：一种具有PE耐候层的增效型太阳能电池背板，所述增效型太阳能电池背板包括从上到下依次设置的PE耐候层、第一粘结层、PET基材层、第二粘结层和增效膜层，第一粘结层的两面分别与PE耐候层、PET基材层贴合，第二粘结层的两面分别与PET基材层、增效膜层贴合。 The purpose of the utility model is achieved through the following technical solutions: a synergistic solar cell backboard with a PE weather-resistant layer, the synergistic solar cell backboard includes a PE weather-resistant layer arranged in sequence from top to bottom, a first Adhesive layer, PET substrate layer, second adhesive layer and synergistic film layer, the two sides of the first adhesive layer are respectively bonded to the PE weather-resistant layer and the PET Lamination of substrate layer and synergistic film layer.
进一步的，所述增效膜层为添加有荧光剂的聚烯烃树脂层。 Further, the synergistic film layer is a polyolefin resin layer added with a fluorescent agent.
进一步的，所述PE耐候层为经过电晕处理的、表面张力为46-50达因值的PE耐候薄膜。 Further, the PE weather-resistant layer is a corona-treated PE weather-resistant film with a surface tension of 46-50 dynes.
进一步的，所述第一粘结层、第二粘结层均为聚氨酯层、丙烯酸酯层或环氧树脂层。 Further, both the first bonding layer and the second bonding layer are polyurethane layers, acrylate layers or epoxy resin layers.
进一步的，所述增效型太阳能电池背板的水汽透过率为＜1g/ m2·d；所述增效型太阳能电池背板的氧气透过率＜0.5 cm3/m2·24h·atm。 Further, the water vapor transmission rate of the synergistic solar cell back sheet is <1g/m 2 ·d; the oxygen transmission rate of the synergistic solar cell back sheet is <0.5 cm 3 /m 2 ·24h· atm.
进一步的，所述PE耐候层的厚度为10-40μm。 Further, the PE weather-resistant layer has a thickness of 10-40 μm.
进一步的，所述第一粘结层、第二粘结层的厚度均为5-30μm。 Further, the thicknesses of the first bonding layer and the second bonding layer are both 5-30 μm.
进一步的，所述PET基材层的厚度为100-400μm。 Further, the thickness of the PET substrate layer is 100-400 μm.
进一步的，所述增效膜层的厚度为15-150μm。 Further, the thickness of the synergistic film layer is 15-150 μm.
进一步的，所述PE耐候层的外表面贴合有厚度为5-10μm的高导热层，所述高导热层为添加有导热填料的氟碳树脂层。 Further, the outer surface of the PE weather-resistant layer is bonded with a high thermal conductivity layer with a thickness of 5-10 μm, and the high thermal conductivity layer is a fluorocarbon resin layer added with thermal conductive fillers.
本实用新型的有益效果在于：本实用新型的背板采用PE耐候层，代替了传统的PVDF膜，提高了背板的耐候性和透光率，不仅降低了成本，也大大减少了氟膜带来的环境污染，且与背板由优异的粘结性。本实用新型的背板采用第一粘结层和第二粘结层，使得各层之间粘结性能优异、湿热处理前后均具有良好的耐水汽透过性。本实用新型的背板采用的PET基材层具有抗水解、抗氧化功能，延长使用年限，节约经济成本。本实用新型的背板采用增效膜层，通过在增效膜层中加入荧光剂，能吸收10-400nm的紫外光，能转化利用现有电池片无法转化的光波，拓宽对太阳光谱吸收转化范围，使制作的太阳能电池组件的光电转换效率高。 The beneficial effect of the utility model is that: the backboard of the utility model adopts PE weather-resistant layer, which replaces the traditional PVDF film, improves the weather resistance and light transmittance of the backboard, not only reduces the cost, but also greatly reduces the To the environmental pollution, and excellent adhesion with the backplane. The backboard of the utility model adopts the first bonding layer and the second bonding layer, so that the bonding performance between the layers is excellent, and the water vapor permeation resistance is good before and after the wet heat treatment. The PET base layer used in the backboard of the utility model has the functions of anti-hydrolysis and anti-oxidation, prolongs the service life and saves economic costs. The backboard of the utility model adopts a synergistic film layer, and by adding a fluorescent agent to the synergistic film layer, it can absorb ultraviolet light of 10-400nm, and can convert and utilize light waves that cannot be converted by existing solar cells, and broaden the absorption and conversion of the solar spectrum. range, so that the photoelectric conversion efficiency of the solar cell module produced is high.
本实用新型的背板结构简单，使用方便，光电转换效率高，较传统背板制作的太阳能电池组件的光电转换效率提升1%以上，且耐候性好。 The backboard of the utility model has the advantages of simple structure, convenient use and high photoelectric conversion efficiency, which is improved by more than 1% compared with the photoelectric conversion efficiency of the solar battery module made of the traditional backboard, and has good weather resistance.
附图说明 Description of drawings
图1是本实用新型实施例一的剖视图。 Fig. 1 is a sectional view of Embodiment 1 of the utility model.
图2是本实用新型实施例二的剖视图。 Fig. 2 is a sectional view of the second embodiment of the utility model.
附图标记为：1—PE耐候层2—第一粘结层、3 —PET基材层、4—第二粘结层、5—增效膜层、6—高导热层。 The reference signs are: 1—PE weather-resistant layer, 2—first adhesive layer, 3—PET substrate layer, 4—second adhesive layer, 5—synergistic film layer, 6—high thermal conductivity layer.
具体实施方式 Detailed ways
为了便于本领域技术人员的理解，下面结合实施例及附图1-2对本实用新型作进一步的说明，实施方式提及的内容并非对本实用新型的限定。 In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings 1-2, and the content mentioned in the implementation mode is not a limitation of the utility model.
实施例一 Embodiment one
如图1所示为本实用新型所述一种具有PE耐候层的增效型太阳能电池背板的实施例一，所述增效型太阳能电池背板包括从上到下依次设置的PE耐候层1、第一粘结层2、PET基材层3、第二粘结层4和增效膜层5，第一粘结层2的两面分别与PE耐候层1、PET基材层3贴合，第二粘结层4的两面分别与PET基材层3、增效膜层5贴合。 As shown in Figure 1, it is an embodiment 1 of a synergistic solar cell back sheet with a PE weather-resistant layer according to the utility model, and the synergistic solar cell back sheet includes a PE weather-resistant layer arranged in sequence from top to bottom 1. The first adhesive layer 2, the PET substrate layer 3, the second adhesive layer 4 and the synergistic film layer 5, the two sides of the first adhesive layer 2 are bonded to the PE weather-resistant layer 1 and the PET substrate layer 3 respectively , the two sides of the second adhesive layer 4 are bonded to the PET substrate layer 3 and the synergistic film layer 5 respectively.
本实用新型的背板采用PE耐候层1，代替了传统的PVDF膜，提高了背板的耐候性和透光率，不仅降低了成本，也大大减少了氟膜带来的环境污染，且与背板由优异的粘结性。本实用新型的背板采用第一粘结层2和第二粘结层4，使得各层之间粘结性能优异、湿热处理前后均具有良好的耐水汽透过性。本实用新型的背板采用的PET基材层3具有抗水解、抗氧化功能，延长使用年限，节约经济成本。本实用新型的背板采用增效膜层5，通过在增效膜层5中加入荧光剂，能吸收10-400nm的紫外光，能转化利用现有电池片无法转化的光波，拓宽对太阳光谱吸收转化范围，使制作的太阳能电池组件的光电转换效率高。 The backboard of the utility model adopts PE weather-resistant layer 1, which replaces the traditional PVDF film, improves the weather resistance and light transmittance of the backboard, not only reduces the cost, but also greatly reduces the environmental pollution caused by the fluorine film. The backsheet has excellent adhesion. The backboard of the utility model adopts the first bonding layer 2 and the second bonding layer 4, so that the bonding performance between the layers is excellent, and the water vapor permeability is good before and after the heat treatment. The PET base layer 3 used in the backboard of the utility model has the functions of anti-hydrolysis and anti-oxidation, prolongs the service life, and saves economic costs. The backboard of the utility model adopts a synergistic film layer 5, and by adding a fluorescent agent in the synergistic film layer 5, it can absorb ultraviolet light of 10-400nm, and can convert and utilize light waves that cannot be converted by existing solar cells, and broaden the solar spectrum. The range of absorption conversion makes the photoelectric conversion efficiency of the fabricated solar cell module high.
本实用新型的背板结构简单，使用方便，光电转换效率高，较传统背板制作的太阳能电池组件的光电转换效率提升1%以上，且耐候性好。 The backboard of the utility model has the advantages of simple structure, convenient use and high photoelectric conversion efficiency, which is improved by more than 1% compared with the photoelectric conversion efficiency of the solar battery module made of the traditional backboard, and has good weather resistance.
本实施例中，所述增效膜层5为添加有荧光剂的聚烯烃树脂层。本实用新型采用聚烯烃树脂层，通过在聚烯烃树脂层中加入荧光剂，能吸收10-400nm的紫外光，能转化利用现有电池片无法转化的光波，拓宽对太阳光谱吸收转化范围，使制作的太阳能电池组件的光电转换效率高。 In this embodiment, the synergistic film layer 5 is a polyolefin resin layer added with a fluorescent agent. The utility model adopts a polyolefin resin layer, and by adding a fluorescent agent in the polyolefin resin layer, it can absorb ultraviolet light of 10-400nm, can convert and utilize light waves that cannot be converted by existing solar cells, and broaden the range of solar spectrum absorption and conversion, so that The photoelectric conversion efficiency of the manufactured solar cell module is high.
本实施例中，所述PE耐候层1为经过电晕处理的、表面张力为46-50达因值的PE耐候薄膜。经过电晕处理的PET耐候薄膜具有较好的粘结性，能提高各层之间的粘结强度，使得背板能更稳定的与太阳能电池片相结合，提高了整个光伏组件的稳定性。优选的，所述PET耐候薄膜的表面张力为48达因值。 In this embodiment, the PE weather-resistant layer 1 is a corona-treated PE weather-resistant film with a surface tension of 46-50 dynes. The corona-treated PET weather-resistant film has good adhesion, which can improve the bonding strength between the layers, so that the backsheet can be more stably combined with the solar cell, and the stability of the entire photovoltaic module is improved. Preferably, the surface tension of the PET weather-resistant film is 48 dynes.
本实施例中，所述第一粘结层2、第二粘结层4均为聚氨酯层、丙烯酸酯层或环氧树脂层。本实用新型的粘结层采用聚氨酯层、丙烯酸酯层或环氧树脂层，使得各层之间粘结性能优异、湿热处理前后均具有良好的耐水汽透过性。 In this embodiment, both the first bonding layer 2 and the second bonding layer 4 are polyurethane layers, acrylate layers or epoxy resin layers. The bonding layer of the utility model adopts a polyurethane layer, an acrylic ester layer or an epoxy resin layer, so that the bonding performance between each layer is excellent, and both before and after wet heat treatment have good water vapor permeability resistance.
本实施例中，所述增效型太阳能电池背板的水汽透过率为＜1g/ m2·d；所述增效型太阳能电池背板的氧气透过率＜0.5 cm3/m2·24h·atm。本发明的背板具有较高的水汽阻隔性和氧气阻隔性，能有效提高背板的湿热老化性能。 In this embodiment, the water vapor transmission rate of the synergistic solar cell back sheet is <1 g/m 2 ·d; the oxygen transmission rate of the synergistic solar cell back sheet is <0.5 cm 3 /m 2 · 24h·atm. The backboard of the invention has high water vapor barrier property and oxygen barrier property, and can effectively improve the damp heat aging performance of the backboard.
本实施例中，所述PE耐候层1的厚度为10-40μm。为使本实用新型达到最佳使用效果，所述PE耐候层1的厚度为25μm。 In this embodiment, the PE weather-resistant layer 1 has a thickness of 10-40 μm. In order to achieve the best use effect of the utility model, the thickness of the PE weather-resistant layer 1 is 25 μm.
本实施例中，所述第一粘结层2、第二粘结层4的厚度均为5-30μm。为使本实用新型达到最佳使用效果，所述第一粘结层2、第二粘结层4的厚度均为20μm。 In this embodiment, the thicknesses of the first bonding layer 2 and the second bonding layer 4 are both 5-30 μm. In order to achieve the best use effect of the utility model, the thicknesses of the first bonding layer 2 and the second bonding layer 4 are both 20 μm.
本实施例中，所述PET基材层3的厚度为100-400μm。为使本实用新型达到最佳使用效果，所述PET基材层3的厚度为250μm。 In this embodiment, the thickness of the PET substrate layer 3 is 100-400 μm. In order to achieve the best use effect of the utility model, the thickness of the PET substrate layer 3 is 250 μm.
本实施例中，所述增效膜层5的厚度为15-150μm。为使本实用新型达到最佳使用效果，所述增效膜层5的厚度为80μm。 In this embodiment, the thickness of the synergistic film layer 5 is 15-150 μm. In order to achieve the best use effect of the utility model, the thickness of the synergistic film layer 5 is 80 μm.
实施例二 Embodiment two
如图2所示为本实用新型所述一种具有PE耐候层1的增效型太阳能电池背板的实施例二，与上述实施例一的不同之处在于：所述PE耐候层1的外表面贴合有厚度为5-10μm的高导热层6，所述高导热层6为添加有导热填料的氟碳树脂层。本实用新型通过采用添加有导热填料的氟碳树脂层作为高导热层6，散热效果好、光电转换率高。 As shown in Figure 2, it is a second embodiment of a synergistic solar battery backsheet with a PE weather-resistant layer 1 according to the present invention. The difference from the first embodiment above is that the outer surface of the PE weather-resistant layer 1 A high thermal conductivity layer 6 with a thickness of 5-10 μm is pasted on the surface, and the high thermal conductivity layer 6 is a fluorocarbon resin layer added with thermal conductivity fillers. The utility model adopts the fluorocarbon resin layer added with heat-conducting filler as the high-heat-conducting layer 6, which has good heat dissipation effect and high photoelectric conversion rate.
上述实施例为本实用新型较佳的实现方案，除此之外，本实用新型还可以其它方式实现，在不脱离本实用新型构思的前提下任何显而易见的替换均在本实用新型的保护范围之内。 The above-mentioned embodiment is a preferred implementation of the utility model. In addition, the utility model can also be realized in other ways. Any obvious replacement is within the scope of protection of the utility model without departing from the concept of the utility model. Inside.
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| CN (1) | CN204271101U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882502A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN104900741A (en) * | 2015-05-15 | 2015-09-09 | 苏州市亘晟涂装工程有限公司 | Novel solar cell |
| CN104916720A (en) * | 2015-05-15 | 2015-09-16 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN105355688A (en) * | 2015-11-20 | 2016-02-24 | 福州顺升科技有限公司 | Solar cell panel and back film manufacturing method thereof |
| CN106129159A (en) * | 2016-07-26 | 2016-11-16 | 无锡中洁能源技术有限公司 | The solar cell backboard that a kind of reflecting properties is good |
| CN110370733A (en) * | 2019-07-29 | 2019-10-25 | 苏州洛瑞卡新材料科技有限公司 | The colored weather-proof decorating film of novel alloy |
-
2014
- 2014-12-31 CN CN201420864228.0U patent/CN204271101U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882502A (en) * | 2015-05-15 | 2015-09-02 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN104900741A (en) * | 2015-05-15 | 2015-09-09 | 苏州市亘晟涂装工程有限公司 | Novel solar cell |
| CN104916720A (en) * | 2015-05-15 | 2015-09-16 | 苏州市亘晟涂装工程有限公司 | Solar battery |
| CN105355688A (en) * | 2015-11-20 | 2016-02-24 | 福州顺升科技有限公司 | Solar cell panel and back film manufacturing method thereof |
| CN106129159A (en) * | 2016-07-26 | 2016-11-16 | 无锡中洁能源技术有限公司 | The solar cell backboard that a kind of reflecting properties is good |
| CN110370733A (en) * | 2019-07-29 | 2019-10-25 | 苏州洛瑞卡新材料科技有限公司 | The colored weather-proof decorating film of novel alloy |
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