WO2024174606A1 - 轻质边框光伏组件及其制备方法 - Google Patents

轻质边框光伏组件及其制备方法 Download PDF

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Publication number
WO2024174606A1
WO2024174606A1 PCT/CN2023/131737 CN2023131737W WO2024174606A1 WO 2024174606 A1 WO2024174606 A1 WO 2024174606A1 CN 2023131737 W CN2023131737 W CN 2023131737W WO 2024174606 A1 WO2024174606 A1 WO 2024174606A1
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Prior art keywords
frame
lightweight
shaped
photovoltaic module
laminated
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Ceased
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PCT/CN2023/131737
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English (en)
French (fr)
Inventor
孙权
崔艳峰
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Cando-Solarphotoelectric Technology (Changzhou) Co Ltd
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Cando-Solarphotoelectric Technology (Changzhou) Co Ltd
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Priority to JP2024572722A priority Critical patent/JP2025518956A/ja
Priority to EP23923769.6A priority patent/EP4614808A4/en
Publication of WO2024174606A1 publication Critical patent/WO2024174606A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame 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
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • 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
    • H10F71/00—Manufacture or treatment of devices covered by this subclass
    • 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 modules, in particular to a lightweight frame photovoltaic module and a preparation method thereof.
  • the cost of modules has gradually decreased, but the frame has limited reduction due to the limitation of aluminum materials, resulting in a high proportion of the frame in the module cost.
  • the frame of the existing structure is heavy.
  • the current lightweight modules adopt a frameless design.
  • the side of the module glass lacks protection, which makes it easy for the edge of the module glass to break, resulting in the scrapping of the module.
  • the existing component frame is framed after the components are laminated, and the component frame and the component body are bonded by injecting silicone into the component frame.
  • the existing module frame generally includes the top edge of the frame (also known as the A side), the side edge of the frame (also known as the B side) and the bottom edge of the frame (also known as the C side), which wraps the edge of the light-receiving surface, the side and the backlight surface of the module body.
  • the thickness of the A side of the module frame is generally 2mm. During long-term outdoor use, it is easy to cause dust and dirt to accumulate, affecting the power generation of the module.
  • the technical problem to be solved by the present invention is: how to further simplify the framing process and reduce the cost.
  • a lightweight frame photovoltaic module including a module body and a frame located on the side of the module body, the frame is an L-shaped frame, the L-shaped frame includes a frame bottom edge located on the backlight surface of the module body and a frame side edge located on the side of the module body, and the L-shaped frame and the module body are bonded by the packaging material overflowing from the module body.
  • packaging material overflowing from the component body between the side edge of the frame and the side surface of the component body and between the bottom edge of the frame and the backlight surface of the component body, which is used for bonding the frame and the component body.
  • the side edge of the frame is flush with the light-receiving surface of the component body; or, the side edge of the frame is lower than the light-receiving surface of the component body, and the height difference between the two is ⁇ 0.5mm.
  • the L-shaped frame is made of metal material, specifically including aluminum and stainless steel; or, the L-shaped frame is made of organic material resistant to high temperature of lamination, specifically including epoxy board, PC board, PP and polyurethane.
  • the L-shaped frame is a solid structure or a hollow structure
  • the inner side wall of the L-shaped frame is a plane or a non-plane with grooves and/or convex ribs.
  • the thickness of the side of the frame is between 0.1 and 5 mm; the thickness of the bottom of the frame is between 0.1 and 3 mm, and the width of the bottom of the frame is between 1 and 20 mm; the length of the L-shaped frame is between 10 mm and 3000 mm, and the L-shaped frame is equal in length to the side of the corresponding component body, or the L-shaped frame is a short frame, which is shorter than the length of the side of the corresponding component body.
  • packaging material in the component body is EVA glue, POE glue, EPE glue, PVB glue or PEP glue, etc.
  • the frame is a single-piece frame; or, the frame is a combined frame composed of at least two frames.
  • a method for preparing the above-mentioned lightweight frame photovoltaic module comprises assembling an L-shaped frame and a stacked component together before laminating the module to obtain a component to be laminated, and then laminating the component to be laminated to complete the packaging of the module and the bonding of the L-shaped frame to the module body.
  • the L-shaped frame is assembled with the laminated member by the fixing action of a temporary fixing object.
  • Component lamination Laminating the various layers of the component body to obtain a laminated part
  • Component lamination The components to be laminated are laminated. During the lamination process, the overflowing packaging material enters the gap between the frame and the component body, completing the packaging of the component and the bonding of the L-shaped frame and the component body;
  • the temporary fixing object is a tape.
  • the tape is specifically a high temperature resistant tape, and the temperature resistance is not lower than the lamination temperature.
  • the frame can also be assembled with the laminated parts through its own structure.
  • the L-shaped frames are first combined and fixed together, and then the combined and fixed L-shaped frames are put on the laminated parts to realize the assembly of the L-shaped frame and the laminated parts.
  • the L-shaped frame is lightweight while protecting the side edges of the components, thus meeting the lightweight requirements of the components; the L-shaped frame has no A-side, thus avoiding the problem of dust accumulation on the front edges of the outdoor components, thus improving power generation; the L-shaped frame has no A-side, while the sizes of the B-side and C-side are also greatly reduced compared to conventional frames, thus greatly reducing the cost of the frame; the L-shaped frame does not affect the lamination of the components, and the frame can be bonded to the frame through the packaging material that overflows from the component body during lamination, thus eliminating the use of silicone and equipment investment, thus greatly reducing the overall cost.
  • FIG1 is a schematic structural diagram of a frame of the present invention.
  • FIG2 is an exploded view of an assembly of the present invention
  • FIG3 is a schematic diagram of a partial structure of a laminated member to be laminated according to the present invention.
  • FIG4 is a schematic diagram of the structure of the laminated member of FIG3 after lamination
  • FIG5 is a schematic structural diagram of the light-receiving surface of the assembly of the present invention.
  • FIG6 is a schematic structural diagram of the backlight surface of the assembly of the present invention.
  • FIG7 is a schematic structural diagram of the light-receiving surface of the short frame assembly of the present invention.
  • FIG8 is a schematic structural diagram of the backlight surface of the short frame assembly of the present invention.
  • a lightweight frame photovoltaic module includes a module body 2 and a frame 1 located on the side of the module body 2, the frame 1 is an L-shaped frame, the L-shaped frame includes a frame bottom edge 1-2 located on the backlight surface of the module body 2 and a frame side edge 1-1 located on the side of the module body 2, and the L-shaped frame is bonded to the module body 2 by a packaging material 4 that overflows the module body 2.
  • packaging material 4 overflowing from the component body 2 between the frame side 1 - 1 and the side surface of the component body 2 and between the frame bottom 1 - 2 and the backlight surface of the component body 2 for bonding the frame 1 and the component body 2 .
  • the packaging material 4 in the component body 2 is EVA glue or POE glue, and of course it can also be EPE glue, PVB glue, PEP glue or other packaging materials that can be used for component packaging.
  • the frame side 1-1 is flush with the light-receiving surface of the component body 2.
  • the frame side 1-1 can also be slightly lower than the light-receiving surface of the component body 2, and the height difference between the two is ⁇ 0.5mm.
  • the frame side 1-1 is lower than the laminate.
  • the thickness of the frame side 1-1 is between 0.1 and 5mm
  • the thickness of the frame bottom 1-2 is between 0.1 and 3mm
  • the width of the frame bottom 1-2 is between 1 and 20mm.
  • the L-shaped frame is made of metal material, specifically including aluminum and stainless steel, etc.; or, the L-shaped frame is made of organic material resistant to high temperature of lamination, specifically including epoxy board, PC board, PP and polyurethane, etc.
  • the L-shaped frame is a solid structure, and the inner side wall of the L-shaped frame is a plane.
  • the component body 2 includes a front panel 2 - 1 , a packaging material layer 2 - 2 , a battery cell layer 2 - 3 , a packaging material layer 2 - 2 and a back panel 2 - 4 .
  • the frame 1 is a single-piece frame, and the widths of the frame bottom edges 1-2 of the four frames 1 are the same. Of course, the widths of the frame bottom edges 1-2 can also be different.
  • each frame 1 is spliced at the corner joint by cutting the corners.
  • the splicing can also be performed by cutting off the overlapping part of one of the frames 1 at the joint.
  • the preparation method of the lightweight frame photovoltaic module comprises the following steps:
  • Component lamination The various layers of the component body 2 are laminated from bottom to top in the order of front panel 2-1, packaging material layer 2-2, battery cell layer 2-3, packaging material layer 2-2, and back panel 2-4 to obtain a laminated component;
  • Component lamination The components to be laminated are placed in a laminator for normal lamination. During the lamination process, the overflowing packaging material 4 will fill the gap between the frame 1 and the component body 2, thereby bonding the L-shaped frame and the component body 2 together;
  • step (4) only when there is excess packaging material 4 overflowing the frame 1, it is necessary to remove the excess packaging material 4 overflowing the frame 1 while removing the high temperature resistant tape 3. Under the premise of not affecting the subsequent preparation of the component, the removal of the high temperature resistant tape 3 and the excess overflowing adhesive can also be removed during the subsequent preparation process of any component.
  • the L-shaped frame of this embodiment removes the upper edge of the frame, greatly reduces the height and thickness of the frame side 1-1, reduces the width of the frame bottom 1-2, greatly reduces the weight of the frame 1, and can greatly reduce the cost of the frame 1; at the same time, removing the upper edge of the frame can completely solve the problem of dust accumulation in the component; during the installation of the frame 1, the frame 1 is pasted on the four sides of the component body 2 using the high-temperature resistant tape 3 before lamination, and the frame 1 is installed and fixed using the glue overflowing from the four sides during the lamination of the component. After the lamination is completed, the high-temperature resistant tape 3 and the excess overflowed glue can be removed.
  • This solution can simplify the component framing process, save the use of silicone and equipment investment, and the overall cost can be greatly reduced.
  • All frames 1 can also be first combined and fixed together by welding, bonding or fastening with fasteners to form a combined frame, and then the combined frame is put on the laminate. At this time, even if there are no temporary fixings, the frame 1 and the laminate will not be separated when the components are laminated, so the temporary fixings can be omitted.
  • temporary fixing objects are not limited to high temperature resistant tape 3.
  • any temporary fixing objects and fixing methods can be used.
  • the component stacking and framing steps can be adjusted accordingly according to the temporary fixing method, and are not limited to stacking the components first and then framing.
  • the packaging material 4 that overflows the component body 2 may exist only between the frame side 1 - 1 and the side surface of the component body 2 , or between the frame bottom 1 - 2 and the backlight surface of the component body 2 .
  • the L-shaped frame is a hollow structure
  • the inner side wall of the L-shaped frame is a non-plane with grooves and/or convex ribs.
  • the grooves or convex ribs can reduce weight and serve as glue holding grooves.
  • part of the side edges of the component body 2 adopt an L-shaped frame, and the remaining sides of the component body 2 adopt a frameless design.
  • three sides of the component body 2 adopt an L-shaped frame, and the remaining side adopts a frameless design.
  • the lightweight frame in the lightweight frame photovoltaic module of the present invention refers to the L-shaped frame of the present invention with the A side omitted.
  • the solution of the present invention can also be applied to conventional modules such as single glass, double glass,
  • the frame 1 is not only a single frame, but also a combined frame composed of at least two frames 1, such as combining and fixing two of the frames 1 in FIG. 5 into an L-shaped combined frame and assembling them with other frames; or combining and fixing three frames 1 in FIG. 5 into a combined frame and assembling them with other frames 1; or combining and fixing all four frames 1 in FIG. 5 into a combined frame matching the external dimensions of the component.
  • the length of the frame 1 of the component can be flexibly set according to the protection range of the component, and can be long or short.
  • the length of the frame 1 is between 10 mm and 3000 mm.
  • the frame 1 is equal to the side of the corresponding component body 2, that is, the frame 1 in the long side direction is equal to the long side of the component body 2, and the frame 1 in the short side direction is equal to the short side of the component body 2.
  • the frame 1 is a short frame, and corner guards are formed at the corners of the component body 2.

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  • Photovoltaic Devices (AREA)

Abstract

一种轻质边框光伏组件及其制备方法。轻质边框光伏组件包括组件本体（2）和L型边框（1），L型边框（1）与组件本体（2）之间通过溢出组件本体（2）的封装材料（4）进行粘结。其制备方法为：在组件层压前将L型边框（1）与叠层件组装在一起，得到待层压件，然后对待层压件进行层压，完成组件的封装和L型边框（1）与组件本体（2）的粘结。L型边框（1）在保护组件侧边的同时质量轻，适应组件的轻量化要求；L型边框（1）不影响组件层压，并使边框（1）可通过层压时溢出组件本体（2）的封装材料（4）对边框（1）进行粘结，省掉硅胶的使用和设备投入，整体成本上可大幅降低。

Description

轻质边框光伏组件及其制备方法 技术领域
本发明涉及光伏组件技术领域，特别是一种轻质边框光伏组件及其制备方法。
 背景技术
随着光伏技术的发展，组件成本逐渐降低，而边框由于受铝材料限制，下降幅度有限，导致边框在组件成本中占比较高。另一方面现有结构的边框较重，目前的轻质组件为了追求质量轻，采用无框设计，但是在实际使用过程中，组件玻璃侧面缺少了保护，容易出现组件玻璃边缘碎裂情况，导致组件报废。
现有的组件边框在组件层压后进行装框，组件边框与组件本体之间通过注入组件边框的硅胶进行粘结。
现有的组件边框一般都包括边框上边（也称A面）、边框侧边（也称B面）和边框底边（也称C面），包裹组件本体的受光面边缘、侧面和背光面边缘。组件边框的A面厚度一般为2mm，在户外长期使用过程中，容易导致灰尘和脏污的积累，影响组件的发电量。
通过对现有技术的检索，发现现有技术存在省略A面的组件边框，用于解决积灰问题，如中国专利文献CN214256207U和中国专利文献CN217949570U。但是上述现有技术都还是在组件层压后进行装框，组件边框与组件本体之间通过注入组件边框的硅胶进行粘结。
 发明内容
本发明所要解决的技术问题是：如何进一步简化装框过程，降低成本。
本发明解决其技术问题所采用的技术方案是：一种轻质边框光伏组件，包括组件本体和位于组件本体的侧边的边框，边框为L型边框，L型边框包括位于组件本体背光面的边框底边和位于组件本体侧面的边框侧边，L型边框与组件本体之间通过溢出组件本体的封装材料进行粘结。
进一步限定，边框侧边与组件本体的侧面之间以及边框底边与组件本体的背光面之间都具有溢出组件本体的封装材料，用于边框与组件本体的粘结。
进一步限定，边框侧边与组件本体的受光面齐平；或者，边框侧边低于组件本体的受光面，两者的高度差≤0.5mm。
进一步限定，L型边框为金属材质，具体包括铝和不锈钢等；或者，L型边框为耐层压高温的有机材质，具体包括环氧板、PC板、PP和聚氨脂等。
进一步限定，L型边框为实心结构或空心结构，L型边框的内侧壁为平面或具有凹槽和/或凸筋的非平面。
进一步限定，边框侧边的厚度在0.1~5mm之间；边框底边的厚度在0.1~3mm之间，边框底边的宽度在1~20mm之间；L型边框的长度在10mm~3000mm之间，L型边框与对应的组件本体的侧边等长，或者L型边框为短边框，短于对应的组件本体的侧边的长度。
进一步限定，组件本体的全部或部分侧边采用L型边框。
进一步限定，组件本体内的封装材料为EVA胶、POE胶、EPE胶、PVB胶或PEP胶等。
进一步限定，边框为单根形式的单体边框；或者，边框为由至少两根边框组合在一起的组合边框。
一种上述的轻质边框光伏组件的制备方法，在组件层压前将L型边框与叠层件组装在一起，得到待层压件，然后对待层压件进行层压，完成组件的封装和L型边框与组件本体的粘结。
进一步限定，L型边框通过临时固定物的固定作用与叠层件组装在一起。
更进一步限定，具体包括如下步骤：
（1）组件叠层：将组件本体的各层结构进行叠层，得到叠层件；
（2）装框：将L型边框组装至叠层件的侧面，并通过临时固定物对L型边框进行临时固定，组装得到待层压件；
（3）组件层压：将待层压件进行层压，层压过程中，溢出的封装材料进入边框与组件本体之间的间隙，完成组件的封装和L型边框与组件本体的粘结；
（4）层压后处理：进行组件的后续制备，并在该步骤中清除临时固定物。
更进一步限定，临时固定物为胶带。
更进一步限定，胶带具体为耐高温胶带，耐温程度不低于层压温度。
除了通过临时固定物的固定作用与叠层件进行组装外，边框还可以通过自身结构与叠层件进行组装，例如：先将L型边框组合固定在一起，然后将组合固定在一起的L型边框套在叠层件上，实现L型边框与叠层件的组装。
本发明的有益效果是：L型边框在保护组件侧边的同时质量轻，适应组件的轻量化要求；L型边框无A面，避免了户外组件正面边缘积灰问题，对发电量有提升效果；L型边框无A面，同时B面C面尺寸也较常规边框大幅减小，边框成本得到大幅降低；L型边框不影响组件层压，并使边框可通过层压时溢出组件本体的封装材料对边框进行粘结，省掉硅胶的使用和设备投入，整体成本上可大幅降低。
 附图说明
下面结合附图和实施例对本发明进一步说明；
图1是本发明的边框的结构示意图；
图2是本发明的组件的爆炸图；
图3是本发明的进行层压的待层压件的局部结构示意图；
图4是图3的待层压件层压后的结构示意图；
图5是本发明组件的受光面的结构示意图；
图6是本发明组件的背光面的结构示意图；
图7是本发明的短边框组件的受光面的结构示意图；
图8是本发明的短边框组件的背光面的结构示意图；
图中，1.边框，1-1.边框侧边，1-2.边框底边，2.组件本体，2-1.前面板，2-2.封装材料层，2-3.电池片层，2-4.背板，3.耐高温胶带，4.封装材料。
 实施方式
如图1~6所示，一种轻质边框光伏组件，包括组件本体2和位于组件本体2的侧边的边框1，边框1为L型边框，L型边框包括位于组件本体2背光面的边框底边1-2和位于组件本体2侧面的边框侧边1-1，L型边框与组件本体2之间通过溢出组件本体2的封装材料4进行粘结。
在本文中，叠层件为层压前组件的各层结构的总称；组件本体是指层压后组件的各层结构的总称。
如图4所示，边框侧边1-1与组件本体2的侧面之间以及边框底边1-2与组件本体2的背光面之间都具有溢出组件本体2的封装材料4，用于边框1与组件本体2的粘结。
组件本体2内的封装材料4为EVA胶或POE胶，当然还可以为EPE胶、PVB胶或PEP胶等其他可用于组件封装的封装材料。
边框侧边1-1与组件本体2的受光面齐平。当然也可以是边框侧边1-1略低于组件本体2的受光面，两者的高度差≤0.5mm。在层压前，边框侧边1-1低于叠层件。边框侧边1-1的厚度在0.1~5mm之间，边框底边1-2的厚度在0.1~3mm之间，边框底边1-2的宽度在1~20mm之间。
L型边框为金属材质，具体包括铝和不锈钢等；或者，L型边框为耐层压高温的有机材质，具体包括环氧板、PC板、PP和聚氨脂等。
如图4所示，L型边框为实心结构，L型边框的内侧壁为平面。
如图2和3所示，组件本体2包括前面板2-1、封装材料层2-2、电池片层2-3、封装材料层2-2和背板2-4。
在附图1~6中，组件本体2的四个侧边全部都有L型边框。边框1为单根形式的单体边框，四条边框1的边框底边1-2的宽度一致。当然边框底边1-2的宽度也可以不同。
在图2、5和6中，各根边框1在边角拼接处通过切角方式进行拼接。当然也可以通过切掉其中一边边框1的在拼接处的重叠部分的方式进行拼接。
该轻质边框光伏组件的制备方法，包括如下步骤：
（1）组件叠层：将组件本体2的各层结构从下到上按照前面板2-1、封装材料层2-2、电池片层2-3、封装材料层2-2、背板2-4的顺序进行叠层，得到叠层件；
（2）装框：将L型边框贴紧叠层件的四边和背光面放置至叠层件的侧面，并通过临时固定物对L型边框进行临时固定，得到如图3所示的待层压件，临时固定物为耐高温胶带3，既可以可靠地固定边框，又不会妨碍后续的层压步骤，耐高温胶带3一般由边框侧面覆盖至叠层件的背光面和受光面，保证边框1被可靠地临时固定；
（3）组件层压：将待层压件放入层压机中进行正常层压，层压过程中，溢出的封装材料4会溢满边框1与组件本体2之间的间隙，从而将L型边框与组件本体2粘接在一起；
（4）层压后处理：清除耐高温胶带3后进行组件的后续制备，后续制备工序与正常组件一致。
在步骤（4）中，仅在有多余的封装材料4溢出边框1，才需要在清除耐高温胶带3的同时清除溢出边框1的多余封装材料4。在不影响组件的后续制备的前提下，清除耐高温胶带3和多余溢胶也可以在任意组件的后续制备工序过程中进行清除。
本实施例的L型边框相比现有边框去除了边框上边，大幅降低边框侧边1-1的高度和厚度，减小边框底边1-2宽度，极大的降低了边框1重量，可大幅降低边框1成本；同时去除边框上边可彻底解决组件积灰问题；边框1安装过程中，通过层压前将边框1使用耐高温胶带3粘贴在组件本体2的四个侧边上，利用组件层压时四边向外溢出的胶完成边框1安装固定，层压完成后清除耐高温胶带3及多余溢出的胶即可，此方案可简化组件装框工序，省掉硅胶的使用和设备投入；整体成本上可大幅降低。
以上所述仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。
例如：不要求必须用临时固定物临时固定边框1和与叠层件，实现L型边框与叠层件的组装，还可以先将所有边框1通过焊接、粘接或紧固件紧固的方式组合固定在一起，成为组合边框，然后将组合边框套在叠层件上，此时，即使没有临时固定物，在组件层压时，边框1与叠层件也不会分离，就可以省略临时固定物。
还例如：临时固定物也不限于耐高温胶带3，只要能在层压前可实现边框1与叠层件的临时固定，并且不影响组件层压，任意临时固定物和固定方式都可以，选择其他临时固定物时，根据临时固定方式组件层叠和装框步骤可相应进行调整，而不限于先组件层叠再装框。
还例如：在保证粘结强度的前提下，可以仅边框侧边1-1与组件本体2的侧面之间，或者边框底边1-2与组件本体2的背光面之间具有溢出组件本体2的封装材料4。
还例如：L型边框为空心结构，L型边框的内侧壁为具有凹槽和/或凸筋的非平面。凹槽或凸筋可以起到减重和作为容胶槽的作用。
还例如：组件本体2的部分侧边采用L型边框，组件本体2的剩余侧边采用无边框设计，具体如组件本体2的三条边上采用L型边框，剩下的一边采用无边框设计。
还例如：本发明的轻质边框光伏组件中的轻质边框是指省略A面的本发明的L型边框，本发明的方案除了可用于轻质组件上外，常规组件如单玻、双玻、
双面双玻、柔性组件上也都可以使用。
还例如：边框1除了为单根形式的单体边框。边框1还可以为由至少两根边框1组合在一起的组合边框，具体如将附图5中的其中两根边框1组合固定为L形组合边框，与其他边框进行组装；或者，将附图5中的三根边框1组合固定为组合边框，与其他边框1进行组装；或者，将附图5中的四根边框1都组合固定为与组件外形尺寸匹配的组合边框。
还例如：组件的边框1的长度可根据组件的保护范围需要灵活设定，可长可短，一般边框1的长度在10mm~3000mm之间。在附图2、5和6中，边框1与对应的组件本体2的侧边等长，即长边方向的边框1与组件本体2的长边等长，短边方向的边框1与组件本体2的短边等长。但是，如图7和8所示，当仅需要保护组件的边角时，边框1为短边框，在组件本体2的边角处形成护角。

Claims (15)

  1. 一种轻质边框光伏组件，包括组件本体（2）和位于组件本体（2）的侧边的边框（1），其特征是：所述的边框（1）为L型边框，L型边框包括位于组件本体（2）背光面的边框底边（1-2）和位于组件本体（2）侧面的边框侧边（1-1），L型边框与组件本体（2）之间通过溢出组件本体（2）的封装材料（4）进行粘结。
  2.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的边框侧边（1-1）与组件本体（2）的侧面之间以及边框底边（1-2）与组件本体（2）的背光面之间都具有溢出组件本体（2）的封装材料（4），用于边框（1）与组件本体（2）的粘结。
  3.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的边框侧边（1-1）与组件本体（2）的受光面齐平；
    或者，边框侧边（1-1）低于组件本体（2）的受光面，两者的高度差≤0.5mm。
  4.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的L型边框为金属材质，具体包括铝和不锈钢；
    或者，L型边框为耐层压高温的有机材质，具体包括环氧板、PC板、PP和聚氨脂。
  5.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的L型边框为实心结构或空心结构，L型边框的内侧壁为平面或具有凹槽和/或凸筋的非平面。
  6.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的边框侧边（1-1）的厚度在0.1~5mm之间；边框底边（1-2）的厚度在0.1~3mm之间，边框底边（1-2）的宽度在1~20mm之间；L型边框的长度在10mm~3000mm之间，L型边框与对应的组件本体（2）的侧边等长，或者L型边框为短边框，短于对应的组件本体（2）的侧边的长度。
  7.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的组件本体（2）的全部或部分侧边采用L型边框。
  8.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的组件本体（2）内的封装材料（4）为EVA胶、POE胶、EPE胶、PVB胶或PEP胶。
  9.  根据权利要求1所述的轻质边框光伏组件，其特征是：所述的边框（1）为单根形式的单体边框；
    或者，边框（1）为由至少两根边框组合在一起的组合边框。
  10.  一种权利要求1~8任意一项所述的轻质边框光伏组件的制备方法，其特征是：在组件层压前将L型边框与叠层件组装在一起，得到待层压件，然后对待层压件进行层压，完成组件的封装和L型边框与组件本体（2）的粘结。
  11.  根据权利要求10所述的轻质边框光伏组件的制备方法，其特征是：L型边框通过临时固定物的固定作用与叠层件组装在一起。
  12.  根据权利要求11所述的轻质边框光伏组件的制备方法，其特征是：具体包括如下步骤：
    （1）组件叠层：将组件本体（2）的各层结构进行叠层，得到叠层件；
    （2）装框：将L型边框放置至叠层件的侧面，并通过临时固定物对L型边框进行临时固定，组装得到待层压件；
    （3）组件层压：将待层压件进行层压，层压过程中，溢出的封装材料（4）进入边框（1）与组件本体（2）之间的间隙，完成组件的封装和L型边框与组件本体（2）的粘结；
    （4）层压后处理：进行组件的后续制备，并在该步骤中清除临时固定物。
  13.  根据权利要求11或12所述的轻质边框光伏组件的制备方法，其特征是：所述的临时固定物为胶带。
  14.  根据权利要求13所述的轻质边框光伏组件的制备方法，其特征是：所述的胶带具体为耐高温胶带（3），耐温程度不低于层压温度。
  15.  根据权利要求10所述的轻质边框光伏组件的制备方法，其特征是：先将L型边框组合固定在一起，然后将组合固定在一起的L型边框套在叠层件上，实现L型边框与叠层件的组装。
PCT/CN2023/131737 2023-02-23 2023-11-15 轻质边框光伏组件及其制备方法 Ceased WO2024174606A1 (zh)

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