CN108258073A - Photovoltaic welding belt and photovoltaic module - Google Patents
Photovoltaic welding belt and photovoltaic module Download PDFInfo
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- CN108258073A CN108258073A CN201611229259.9A CN201611229259A CN108258073A CN 108258073 A CN108258073 A CN 108258073A CN 201611229259 A CN201611229259 A CN 201611229259A CN 108258073 A CN108258073 A CN 108258073A
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- Prior art keywords
- reflective
- photovoltaic
- protrusion
- pyramid
- photovoltaic module
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- 238000003466 welding Methods 0.000 title claims abstract description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 238000003490 calendering Methods 0.000 claims abstract description 5
- 238000005476 soldering Methods 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910001174 tin-lead alloy Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/90—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers
- H10F19/902—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells
- H10F19/904—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells characterised by the shapes of the structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/40—Optical elements or arrangements
- H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
- H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
-
- 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
- Y02E10/52—PV systems with concentrators
Landscapes
- Photovoltaic Devices (AREA)
Abstract
本发明提供一种反光焊带，设有长条形基体及形成于基体上表面的突起，所述突起经延压成型并呈金字塔形，且突起具有正方形底部及四个倾斜面，所述倾斜面上涂覆有锡层。本发明通过在焊带表面设置特殊的金字塔结构以将入射到焊带上的光经二次反射到电池片上，以提高光线利用率及组件的效率。
The invention provides a reflective welding strip, which is provided with a strip-shaped substrate and a protrusion formed on the upper surface of the substrate. The protrusion is calendered and formed in a pyramid shape, and the protrusion has a square bottom and four inclined surfaces. The inclined The surface is coated with a tin layer. In the present invention, a special pyramid structure is arranged on the surface of the welding strip to reflect the light incident on the welding strip to the battery sheet twice, so as to improve the light utilization rate and the efficiency of the assembly.
Description
技术领域technical field
本发明涉及光伏发电领域，尤其涉及一种光伏焊带及光伏组件。The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic ribbon and a photovoltaic module.
背景技术Background technique
光伏组件在制作过程中需采用镀锡铜基材作为焊带将电池串联起来，焊带的选择上需考虑其电学和光学的匹配性，一般的焊带采用常规的铜基材并在外表面镀锡铅合金层，即在一定尺寸的铜带上浸镀或电镀一层微米级别厚度的锡铅合金层，这种焊带的制作工艺简单，但是这种焊带焊接后会遮挡一部分电池片的受光面积，影响光伏组件的输出功率。In the production process of photovoltaic modules, tin-plated copper substrates should be used as solder strips to connect the cells in series. The selection of solder strips should consider its electrical and optical matching. Generally, the solder strips use conventional copper substrates and are plated on the outer surface. Tin-lead alloy layer, that is, dip-plating or electroplating a layer of tin-lead alloy layer with a thickness of micron level on a copper strip of a certain size. The light-receiving area affects the output power of photovoltaic modules.
随着光伏行业的持续发展，对光伏组件功率的要求越来越高，提高功率意味着降低组件成本，因而在组件材料上出现了很多新型材料，从光学和电学两方面提高组件功率，其中，反光焊带近来较为热门，其可从光学方面提高组件的功率，目前现有的反光焊带主要是在表面贴附一层反光膜，通过反光膜来实现光线反射，反光膜的表面分布有大量不规则的微型凹凸结构，但是实验测试表明，这种反光焊带的光线利用率仍有待提高，且反光膜需要贴合操作，也比较麻烦。With the continuous development of the photovoltaic industry, the requirements for the power of photovoltaic modules are getting higher and higher. Increasing the power means reducing the cost of the components. Therefore, many new materials have appeared on the component materials to improve the power of the components from both optical and electrical aspects. Among them, Reflective soldering tape has become popular recently, which can improve the power of components optically. At present, the existing reflective soldering tape mainly attaches a layer of reflective film on the surface, and realizes light reflection through the reflective film. The surface of the reflective film is distributed with a large number of Irregular micro-concave-convex structure, but experimental tests show that the light utilization rate of this reflective ribbon still needs to be improved, and the reflective film needs to be attached, which is also troublesome.
发明内容Contents of the invention
有鉴于此，本发明提供一种光伏焊带及光伏组件，以改善反光效果、提升组件效率。In view of this, the present invention provides a photovoltaic ribbon and a photovoltaic module to improve the reflection effect and improve the efficiency of the module.
具体地，本发明是通过如下技术方案实现的：提供一种反光焊带，设有长条形基体及形成于基体上表面的突起，所述突起经延压成型并呈金字塔形，且突起具有正方形底部及四个倾斜面，所述倾斜面上涂覆有锡层。Specifically, the present invention is achieved through the following technical solutions: provide a reflective welding strip, which is provided with a strip-shaped base and a protrusion formed on the upper surface of the base, the protrusion is calendered and pyramid-shaped, and the protrusion has A square bottom and four inclined surfaces, the inclined surfaces are coated with a tin layer.
进一步地，所述正方形底部的边长为0.2-1mm，所述四个倾斜面相对于所述基体的上表面的角度为30-80°，且所述倾斜面为正三角形。Further, the side length of the square bottom is 0.2-1mm, the angles of the four inclined surfaces relative to the upper surface of the base are 30-80°, and the inclined surfaces are regular triangles.
进一步地，所述锡层的厚度为5-10μm。Further, the thickness of the tin layer is 5-10 μm.
进一步地，所述金字塔形突起均匀分布于所述基体的上表面。Further, the pyramid-shaped protrusions are evenly distributed on the upper surface of the base.
本发明还通过如下技术方案实现的：提供一种光伏组件，该光伏组件包括如前所述的反光焊带。The present invention is also achieved through the following technical solution: a photovoltaic module is provided, which includes the aforementioned reflective soldering tape.
本发明通过在焊带表面设置特殊的金字塔结构以将入射到焊带上的光经二次反射到电池片上，以提高光线利用率及组件的效率。In the present invention, a special pyramid structure is arranged on the surface of the ribbon to reflect the light incident on the ribbon to the battery sheet through secondary reflection, so as to improve the utilization rate of light and the efficiency of components.
附图说明Description of drawings
图1是本发明所述反光焊带的立体图。Fig. 1 is a perspective view of the reflective soldering tape of the present invention.
图2是本发明所述反光焊带的横截面视图。Fig. 2 is a cross-sectional view of the reflective soldering tape of the present invention.
图3是本发明所述反光焊带所做的对比实验测试数据表。Fig. 3 is a comparative experimental test data table of the reflective welding strip of the present invention.
具体实施方式Detailed ways
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
在本发明使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
如图1及图2所示，本发明公开一种反光焊带100，其设有长条形基体10及形成于基体10上表面的突起20，其中，所述基体10的上表面为受光面，且所述突起20呈金字塔形，其设有正方形的底部及四个倾斜面30，所述正方形底部的边长为0.2-1mm，所述四个倾斜面30相对于所述基体10的上表面的角度A为30-80°，且所述倾斜面30为正三角形。As shown in Figures 1 and 2, the present invention discloses a reflective soldering tape 100, which is provided with a strip-shaped base 10 and a protrusion 20 formed on the upper surface of the base 10, wherein the upper surface of the base 10 is a light-receiving surface , and the protrusion 20 is pyramid-shaped, and it is provided with a square bottom and four inclined surfaces 30, the side length of the square bottom is 0.2-1mm, and the four inclined surfaces 30 are relative to the upper surface of the base body 10. The angle A of the surface is 30-80°, and the inclined surface 30 is an equilateral triangle.
所述金字塔形突起20的表面(即所述四个倾斜面30)涂覆有锡层，且锡层的厚度优选5-10μm。而且，金字塔形突起20均匀分布于所述基体10的上表面。The surfaces of the pyramid-shaped protrusions 20 (ie, the four inclined surfaces 30 ) are coated with a tin layer, and the thickness of the tin layer is preferably 5-10 μm. Moreover, the pyramid-shaped protrusions 20 are uniformly distributed on the upper surface of the base body 10 .
所述金字塔形突起20通过压延工艺成型于所述基体10的上表面，且金字塔形突起20与所述基体10为一体结构，非现有技术中的贴反光膜方式，金字塔形突起20的成型采用压延方式更为简单。The pyramid-shaped protrusions 20 are formed on the upper surface of the base body 10 by a calendering process, and the pyramid-shaped protrusions 20 and the base body 10 have an integrated structure, which is not the way of pasting reflective film in the prior art. The molding of the pyramid-shaped protrusions 20 It is simpler to use calendering.
所述金字塔结构能将入射到焊带100上的光反射到电池片上，以此来进一步利用二次反射光。所述基体10经过压延后，将按照正常焊带100制作过程制作，并控制金字塔结构上的涂锡层厚度，防止焊带100在高温焊接时因锡层熔融导致相邻金字塔结构之间的凹处内填入锡，从而影响反射率。另外，所述金字塔结构的四个倾斜面30可以反射光线，当太阳光入射高度、角度不同时，本发明光伏组件的光线利用率会比现有光伏组件更高。The pyramid structure can reflect the light incident on the solder ribbon 100 to the battery sheet, so as to further utilize the secondary reflected light. After the base body 10 is rolled, it will be manufactured according to the normal soldering strip 100 production process, and the thickness of the tin layer on the pyramid structure will be controlled to prevent the soldering strip 100 from causing concavities between adjacent pyramidal structures due to the melting of the tin layer during high-temperature welding. The place is filled with tin, which affects the reflectivity. In addition, the four inclined surfaces 30 of the pyramid structure can reflect light, and when the incident height and angle of sunlight are different, the light utilization rate of the photovoltaic module of the present invention will be higher than that of the existing photovoltaic module.
试验表明，如图3所示表格中，相比于采用常规反光焊带的光伏组件来说，在相同的安装角度下，本发明实施例中所述光伏组件具有更高入射角修正系数(IAM，Incidenceangle modifier)，所谓入射角修正系数用于表示太阳光线非垂直入射与垂直入射时的差异，本发明光伏组件对入射光线的调整和修正效果更佳(即IAM越大，则表示太阳光入射时角度影响越小)，可达到较为理想的反射效果，提高光线的利用率，所述反光焊带100不仅能从光学和电学上提高组件功率，组件在户外使用中不会因入射角度不同而影响组件的发电量。Tests have shown that, in the form shown in Figure 3, compared to the photovoltaic module using conventional reflective ribbons, at the same installation angle, the photovoltaic module described in the embodiment of the present invention has a higher incidence angle correction factor (IAM , Incidenceangle modifier), the so-called incident angle correction coefficient is used to represent the difference between the non-perpendicular incidence and vertical incidence of sunlight, and the adjustment and correction effect of the photovoltaic module of the present invention to the incident light is better (that is, the larger the IAM, the greater the incidence of sunlight. The smaller the influence of the angle), it can achieve a more ideal reflection effect and improve the utilization rate of light. The reflective ribbon 100 can not only improve the power of the component optically and electrically, but the component will not be damaged due to different incident angles in outdoor use. Affects the power generation of the components.
本发明还提供一种光伏组件，所述光伏组件采用上述反光焊带100，在此不再赘述。The present invention also provides a photovoltaic module, which adopts the above-mentioned reflective soldering tape 100 , which will not be repeated here.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229259.9A CN108258073A (en) | 2016-12-27 | 2016-12-27 | Photovoltaic welding belt and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229259.9A CN108258073A (en) | 2016-12-27 | 2016-12-27 | Photovoltaic welding belt and photovoltaic module |
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| Publication Number | Publication Date |
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| CN108258073A true CN108258073A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611229259.9A Withdrawn CN108258073A (en) | 2016-12-27 | 2016-12-27 | Photovoltaic welding belt and photovoltaic module |
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| Country | Link |
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| CN (1) | CN108258073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208888A (en) * | 2019-07-09 | 2019-09-06 | 无锡市诺岩信科技有限公司 | Photovoltaic module multiple reflection facet reflective film |
| CN110676348A (en) * | 2019-10-09 | 2020-01-10 | 浙江正泰太阳能科技有限公司 | A photovoltaic module production equipment and its welding strip engraving device |
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| CN202443990U (en) * | 2012-02-08 | 2012-09-19 | 安徽圣科新能源科技有限公司 | Solar cell interconnecting belt |
| CN103456820A (en) * | 2013-08-16 | 2013-12-18 | 常州天合光能有限公司 | Micro-condensation photovoltaic welding strip |
| CN103646981A (en) * | 2013-12-24 | 2014-03-19 | 苏州阿特斯阳光电力科技有限公司 | Embossing solder strip used for back contact solar cell component and preparation method of component |
| CN103681927A (en) * | 2013-12-26 | 2014-03-26 | 无锡市斯威克科技有限公司 | Bijection type reflecting solder strip |
| CN105118882A (en) * | 2015-09-16 | 2015-12-02 | 同享（苏州）电子材料科技有限公司 | Low-temperature light-reflecting solder strip |
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2016
- 2016-12-27 CN CN201611229259.9A patent/CN108258073A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202443990U (en) * | 2012-02-08 | 2012-09-19 | 安徽圣科新能源科技有限公司 | Solar cell interconnecting belt |
| CN103456820A (en) * | 2013-08-16 | 2013-12-18 | 常州天合光能有限公司 | Micro-condensation photovoltaic welding strip |
| CN103646981A (en) * | 2013-12-24 | 2014-03-19 | 苏州阿特斯阳光电力科技有限公司 | Embossing solder strip used for back contact solar cell component and preparation method of component |
| CN103681927A (en) * | 2013-12-26 | 2014-03-26 | 无锡市斯威克科技有限公司 | Bijection type reflecting solder strip |
| CN105118882A (en) * | 2015-09-16 | 2015-12-02 | 同享（苏州）电子材料科技有限公司 | Low-temperature light-reflecting solder strip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110208888A (en) * | 2019-07-09 | 2019-09-06 | 无锡市诺岩信科技有限公司 | Photovoltaic module multiple reflection facet reflective film |
| CN110676348A (en) * | 2019-10-09 | 2020-01-10 | 浙江正泰太阳能科技有限公司 | A photovoltaic module production equipment and its welding strip engraving device |
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Application publication date: 20180706 |