CN202395001U - Novel solar battery rear panel - Google Patents
Novel solar battery rear panel Download PDFInfo
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- CN202395001U CN202395001U CN201120552131.2U CN201120552131U CN202395001U CN 202395001 U CN202395001 U CN 202395001U CN 201120552131 U CN201120552131 U CN 201120552131U CN 202395001 U CN202395001 U CN 202395001U
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- 239000010410 layer Substances 0.000 claims abstract description 71
- 239000012790 adhesive layer Substances 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims abstract description 15
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 239000002346 layers by function Substances 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000002033 PVDF binder Substances 0.000 claims abstract description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 9
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 19
- 239000002585 base Substances 0.000 description 10
- 239000010408 film Substances 0.000 description 6
- 210000003850 cellular structure Anatomy 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 229920006370 Kynar Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
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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
- 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
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- Photovoltaic Devices (AREA)
- Laminated Bodies (AREA)
Abstract
本实用新型涉及一种新型太阳能电池背板，包括基体、上部耐候层和下部耐候层，上部耐候层和下部耐候层分别与基体通过流延复合方式结合为一体的层状结构，上部耐候层和下部耐候层均包括基层、功能层和粘结层，上部耐候层和下部耐候层均通过粘结层与基体连接。本实用新型粘结层为改性聚乙烯、或醋酸乙烯乙酯层，与常规太阳能电池背板所用的聚偏二氟乙烯薄膜相比，该粘结层与太阳能电池背板基体的粘结性更好，功能层为聚偏二氟乙烯层，放置在太阳能电池背板的最外面，满足了太阳能电池背板产品耐候性的需要，基层为改性聚乙烯层，所有原材料无需进口，降低了原材料的投入成本，从而有效的控制太阳能电池背板的制作成本，降低太阳能电池背板的生产成本。
The utility model relates to a new solar cell backboard, which comprises a substrate, an upper weather-resistant layer and a lower weather-resistant layer. Both the lower weather-resistant layers include a base layer, a functional layer and an adhesive layer, and both the upper weather-resistant layer and the lower weather-resistant layer are connected to the substrate through the adhesive layer. The adhesive layer of the utility model is a modified polyethylene or vinyl acetate layer. Compared with the polyvinylidene fluoride film used in the conventional solar cell back sheet, the adhesion between the adhesive layer and the solar cell back sheet matrix is Even better, the functional layer is a polyvinylidene fluoride layer, which is placed on the outermost surface of the solar cell back sheet, which meets the needs of the weather resistance of the solar cell back sheet. The base layer is a modified polyethylene layer, and all raw materials do not need to be imported, reducing the The input cost of raw materials can effectively control the production cost of the solar battery backplane and reduce the production cost of the solar battery backplane.
Description
技术领域 technical field
本实用新型涉及一种太阳能电池背板。The utility model relates to a solar cell backboard.
背景技术 Background technique
目前，市面上常见的太阳能电池背板分为两种类型：复合型和涂覆型，但被市场广泛认可的是复合型背板，由于太阳能电池背板需要对能够产生光电转化的芯片进行封装、保护和绝缘，并保证该芯片能够长期地保持光电转化，因此要求其具有优异的电绝缘性、阻湿性，良好的耐紫外、耐酸碱和冷热冲击性。它是制造太阳能电池组件必备的关键部件，其质量的好坏，直接影响太阳能电池组件的效率及使用寿命。At present, there are two types of common solar cell backsheets on the market: composite type and coated type, but composite type backsheets are widely recognized in the market, because solar cell backsheets need to package chips that can generate photoelectric conversion , protection and insulation, and to ensure that the chip can maintain photoelectric conversion for a long time, so it is required to have excellent electrical insulation, moisture resistance, good UV resistance, acid and alkali resistance, and thermal shock resistance. It is an essential key component in the manufacture of solar cell components, and its quality directly affects the efficiency and service life of solar cell components.
典型的复合型太阳能电池背板(也称TPT)是由耐候层(T)与基层(P)通过胶粘方式复合而成，耐候层采用具有25年以上使用寿命的含氟元素薄膜，基层采用耐高压、绝缘性能优异的不透水片材(如聚对苯二甲酸乙二醇酯，即PET)。其中，耐候层为耐候性优异的含氟薄膜：如聚氟乙烯薄膜(杜邦公司供应，商品名为Tedlar)、或聚偏氟乙烯薄膜(阿克玛公司供应，商品名为Kynar)，但由于该类薄膜一直被国外厂家垄断，不仅价格较高，且断货显现严重，从而导致太阳能电池背板的价格居高不下，随着近来太阳能电池组件价格的不断下降，组件原材料成本下降已成为必然，因此，为满足太阳能组件行业成本不断下降的需求，解决含氟薄膜一直以来依赖进口的局面，太阳能电池组件行业迫切需要一种价格合理、供货周期稳定的复合型太阳能能电池背板为其配套服务。A typical composite solar cell backsheet (also known as TPT) is composed of a weather-resistant layer (T) and a base layer (P) through adhesive bonding. The weather-resistant layer uses a fluorine-containing film with a service life of more than 25 years, and the base layer uses Water-impermeable sheets (such as polyethylene terephthalate, or PET) that are resistant to high pressure and have excellent insulation properties. Wherein, the weather-resistant layer is a fluorine-containing film with excellent weather resistance: such as polyvinyl fluoride film (supplied by DuPont, trade name Tedlar), or polyvinylidene fluoride film (supplied by Akema Company, trade name Kynar), but due to This kind of thin film has been monopolized by foreign manufacturers, not only the price is high, but also the shortage of stock is serious, which leads to the high price of solar cell backsheet. With the recent decline in the price of solar cell components, the cost of component raw materials has become inevitable. , Therefore, in order to meet the demand of the solar module industry for cost reduction and solve the situation that fluorine-containing thin films have been dependent on imports, the solar cell module industry urgently needs a composite solar cell backsheet with reasonable price and stable delivery cycle for its supporting services.
实用新型内容 Utility model content
本实用新型针对现行太阳能电池背板存在的上述不足，提供了一种结构新颖、成本低、且性能优良的新型太阳能电池背板。The utility model aims at the above-mentioned deficiencies existing in the current solar cell backboard, and provides a novel solar battery backboard with novel structure, low cost and excellent performance.
本实用新型的技术方案是：一种新型太阳能电池背板，包括基体、上部耐候层和下部耐候层，上部耐候层和下部耐候层分别与基体通过流延复合方式结合为一体的层状结构，上部耐候层和下部耐候层均包括基层、功能层和粘结层，上部耐候层和下部耐候层均通过粘结层与基体连接。The technical solution of the utility model is: a new type of solar cell backboard, including a substrate, an upper weather-resistant layer and a lower weather-resistant layer, and the upper weather-resistant layer and the lower weather-resistant layer are respectively combined with the substrate through a tape-cast composite layered structure, Both the upper weather-resistant layer and the lower weather-resistant layer include a base layer, a functional layer and an adhesive layer, and both the upper weather-resistant layer and the lower weather-resistant layer are connected to the substrate through the adhesive layer.
优选的是，基体为聚对苯二甲酸乙二醇酯层。Preferably, the substrate is a layer of polyethylene terephthalate.
优选的是，基层为改性聚乙烯层。Preferably, the base layer is a modified polyethylene layer.
优选的是，功能层为聚偏二氟乙烯层。Preferably, the functional layer is a polyvinylidene fluoride layer.
优选的是，粘结层为改性聚乙烯、或醋酸乙烯乙酯层。Preferably, the adhesive layer is a layer of modified polyethylene or ethyl vinyl acetate.
本实用新型的有益效果是：本实用新型通过流延复合方式将基体与上部耐候层和下部耐候层连接为一体，上部耐候层和下部耐候层均设置有基层、功能层和粘结层三层结构，其中，上部耐候层和下部耐候层通过粘结层与基体连接，粘结层为改性聚乙烯、或醋酸乙烯乙酯层，与常规太阳能电池背板所用的聚偏二氟乙烯薄膜相比，该粘结层与太阳能电池背板基体的粘结性更好，功能层为聚偏二氟乙烯层，放置在太阳能电池背板的最外面，满足了太阳能电池背板产品耐候性的需要，基层为改性聚乙烯层，所有原材料无需进口，降低了原材料的投入成本，从而有效的控制太阳能电池背板的制作成本，降低太阳能电池背板的生产成本。The beneficial effects of the utility model are: the utility model connects the base body and the upper weather-resistant layer and the lower weather-resistant layer as a whole through the tape-cast composite method, and the upper weather-resistant layer and the lower weather-resistant layer are both provided with a base layer, a functional layer and an adhesive layer. structure, wherein the upper weather-resistant layer and the lower weather-resistant layer are connected to the substrate through an adhesive layer, the adhesive layer is modified polyethylene or vinyl ethyl acetate layer, which is compatible with the polyvinylidene fluoride film used in conventional solar cell back sheets Compared with the solar cell back sheet, the adhesive layer has better adhesion to the substrate of the solar cell back sheet, and the functional layer is a polyvinylidene fluoride layer, which is placed on the outermost surface of the solar cell back sheet, which meets the needs of the weather resistance of the solar cell back sheet , the base layer is a modified polyethylene layer, and all raw materials do not need to be imported, which reduces the input cost of raw materials, thereby effectively controlling the production cost of the solar cell back sheet and reducing the production cost of the solar cell back sheet.
附图说明 Description of drawings
附图1为本实用新型具体实施例结构示意图；Accompanying drawing 1 is the structural representation of the specific embodiment of the utility model;
附图2为本实用新型具体实施例上部耐候层的结构示意图；Accompanying
附图3为本实用新型具体实施例下部耐候层的结构示意图。Accompanying
具体实施方式 Detailed ways
以下结合附图对本实用新型作出进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.
本实用新型的具体实施方式：如图1至3所示，一种新型太阳能电池背板，包括基体1、上部耐候层2和下部耐候层3，上部耐候层2和下部耐候层3分别与基体1通过流延复合方式结合为一体的层状结构，基体1为聚对苯二甲酸乙二醇酯层。上部耐候层2和下部耐候层3均包括基层4、功能层5和粘结层6，上部耐候层2和下部耐候层3均通过粘结层6与基体1连接，基层4为改性聚乙烯层，功能层5为聚偏二氟乙烯层，粘结层6为改性聚乙烯、或醋酸乙烯乙酯层，和常规太阳能电池背板所用的聚偏二氟乙烯薄膜相比，该粘结层与太阳能电池背板基体的粘结性更好。Specific implementation of the present utility model: as shown in Figures 1 to 3, a new type of solar cell backboard includes a substrate 1, an upper weather-
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120552131.2U CN202395001U (en) | 2011-12-27 | 2011-12-27 | Novel solar battery rear panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120552131.2U CN202395001U (en) | 2011-12-27 | 2011-12-27 | Novel solar battery rear panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395001U true CN202395001U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120552131.2U Expired - Fee Related CN202395001U (en) | 2011-12-27 | 2011-12-27 | Novel solar battery rear panel |
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| CN (1) | CN202395001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840023A (en) * | 2012-11-20 | 2014-06-04 | 财团法人工业技术研究院 | Module structure |
| US9412921B2 (en) | 2012-11-20 | 2016-08-09 | Industrial Technology Research Institute | Module structure |
| CN106252441A (en) * | 2016-08-31 | 2016-12-21 | 江苏裕康复合材料有限公司 | A kind of photovoltaic component back plate |
-
2011
- 2011-12-27 CN CN201120552131.2U patent/CN202395001U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840023A (en) * | 2012-11-20 | 2014-06-04 | 财团法人工业技术研究院 | Module structure |
| CN103840023B (en) * | 2012-11-20 | 2016-06-08 | 财团法人工业技术研究院 | Module structure |
| US9412921B2 (en) | 2012-11-20 | 2016-08-09 | Industrial Technology Research Institute | Module structure |
| CN106252441A (en) * | 2016-08-31 | 2016-12-21 | 江苏裕康复合材料有限公司 | A kind of photovoltaic component back plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121227 |