WO2023197759A1 - Crystalline silicon bipv building component - Google Patents

Crystalline silicon bipv building component Download PDF

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Publication number
WO2023197759A1
WO2023197759A1 PCT/CN2023/078356 CN2023078356W WO2023197759A1 WO 2023197759 A1 WO2023197759 A1 WO 2023197759A1 CN 2023078356 W CN2023078356 W CN 2023078356W WO 2023197759 A1 WO2023197759 A1 WO 2023197759A1
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WO
WIPO (PCT)
Prior art keywords
battery
crystalline silicon
building component
shingled
glass
Prior art date
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PCT/CN2023/078356
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French (fr)
Chinese (zh)
Inventor
姬明良
魏青竹
汪献利
Original Assignee
永臻科技股份有限公司
常州永臻智能新幕建筑系统科技有限公司
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Application filed by 永臻科技股份有限公司, 常州永臻智能新幕建筑系统科技有限公司 filed Critical 永臻科技股份有限公司
Publication of WO2023197759A1 publication Critical patent/WO2023197759A1/en

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Classifications

    • 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
    • H01L31/044—PV modules or arrays of single PV cells including bypass diodes
    • 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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • 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
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
    • 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
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/26—Building materials integrated with PV modules, e.g. façade elements
    • 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 present application belongs to the technical field of photovoltaic modules, and specifically relates to a crystalline silicon BIPV building component.
  • BIPV building integrated photovoltaics
  • the purpose of this application is to provide a crystalline silicon BIPV building component to achieve efficient power generation of BIPV building components.
  • a crystalline silicon BIPV building component including
  • Battery board which is suitable for blackening treatment, wherein the battery board is composed of one or several battery subsets with the same or different specifications, each of the battery subsets are connected in series in sequence, and any of the battery subsets are connected in parallel.
  • the battery subset includes one or several shingled battery strings with the same specifications, and each of the shingled battery strings is connected in parallel in sequence.
  • the number of shingled battery strings is 1-7 strings.
  • the shingled battery string includes
  • each of the small pieces is laminated and connected in sequence to form the positive and negative electrodes of the shingled battery string, and
  • the punched welding strip is electrically connected to the positive and negative electrodes of the shingled battery string.
  • the number of small pieces is 5-7 pieces.
  • the protection component is a diode.
  • the glass plate which is blackened and has a double-glass structure of front glass and back glass.
  • the non-air surface of the front glass is printed with graphics and covered to the punching welding.
  • any material from PVB, EVA, or POE is encapsulated between the front glass and the back glass.
  • the punched welding strip was covered with black tape.
  • both the front glass and the back glass are tempered glass.
  • the thickness of the front glass is 4mm or 3.2mm or other dimensions
  • the thickness of the back glass is 4mm or 3.2mm or other dimensions.
  • the beneficial effects of this application are: first, the small chips in this application can be matched into different shapes such as triangles, with a high screen-to-body ratio, and the power generation per unit area is greatly improved; secondly, This application can be applied to different construction scenarios.
  • the front side of the shingled battery string itself is designed without solder strips, and does not need to be shielded by the solder strips. This greatly reduces the related costs of materials and labor, increases production capacity, and reduces manufacturing costs.
  • the appearance consistency in this application is higher, which is conducive to the promotion and application of BIPV;
  • the shingled battery strings in this application are designed in parallel, which are less affected by shadow occlusion, low power loss, low hot spot temperature, and extended Component life; this application can match the horizontal and vertical design according to the installation direction of the components in the system design, thereby improving the overall appearance of the power station.
  • Figure 1 is a top view of a shingled battery string in a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
  • Figure 2 is a front view of Figure 1 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
  • Figure 3 is a top view of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application.
  • Figure 4 is a structural view of Figure 3 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
  • Figure 5 is a top view of a crystalline silicon BIPV building component proposed according to the second embodiment of the present application.
  • Figure 6 is a structural view of Figure 5 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
  • Figure 7 is a top view of a crystalline silicon BIPV building component proposed according to the third embodiment of the present application.
  • Fig. 8 is a structural view of Fig. 7 of a crystalline silicon BIPV building component proposed according to the third embodiment of the present application.
  • a crystalline silicon BIPV building component includes a protective member 2 and a battery panel 1.
  • the battery panel 1 is suitable for blackening treatment.
  • the battery panel 1 is composed of a battery subset 11 with the same specifications.
  • the battery The subset 11 is connected in parallel with the protection member 2.
  • the battery subset 11 includes one or several shingled battery strings 111 with the same specifications. Each shingled battery string 111 is connected in parallel in turn.
  • the protection member 2 is a diode. This application can be applied to different construction scenarios.
  • the front side of the shingled battery string 111 itself is designed without soldering strips, and does not need to be shielded by the soldering strips, thus significantly reducing the related costs of materials and labor, increasing production capacity, and reducing manufacturing costs. cost;
  • the shingled battery string 111 in this application is a parallel design, which is less affected by shadow occlusion, has low power loss and low hot spot temperature, which extends the life of the components;
  • the appearance consistency in this application is higher, which is beneficial to Promotion and application of BIPV;
  • this application can match the horizontal and vertical design according to the installation direction of the components in the system design, thereby improving the overall appearance of the power station.
  • the shingled battery string 111 includes a number of small pieces 1111 with the same specifications and punched welding strips 1112.
  • the small pieces 1111 are cut from the shingled battery pieces into N equal parts according to the mesh design (N is generally 5-7 pieces).
  • the small pieces 1111 1111 can be matched into different shapes such as triangles. Its screen-to-body ratio is high and the power generation per unit area is greatly improved.
  • Each small piece 1111 is connected in sequence and conductive glue is used between the corresponding positive and negative electrodes of each small piece 1111. Curing and bonding to form the shingled battery string 111 body.
  • the positive and negative electrodes of the shingled battery string 111 are formed on both sides of the shingled battery string 111 body.
  • the punched welding ribbon 1112 (tinned with a certain width such as 8*0.12mm Lead and copper strips are punched) and are electrically connected to the positive and negative electrodes of the shingled battery string 111, thereby forming a complete series of shingled battery strings 111 (hereinafter referred to as S).
  • S is usually The length is controlled within 1200mm.
  • the glass plate has a double-glass structure of front glass and back glass.
  • the front glass can be ultra-white embossed tempered glass
  • the back glass can be ordinary tempered glass.
  • the thickness of the two layers of glass can be Choose according to the specific use environment, such as 4mm+4mm, 4mm+3.2mm.
  • the sizes of normal glass and north glass are not limited to the above sizes.
  • the glass plate can be designed with an all-black appearance, and graphics can be printed on the non-air surface of the normal glass.
  • the packaging material is not limited to the above-mentioned packaging materials.
  • the packaging material increases the long-term weather resistance of the glass plate.
  • the battery panel 1 is a pure parallel circuit with only one battery subset 11, that is, the length of S is designed according to the overall component size, and its width can be selected from crystalline silicon battery cell sizes such as 158.75, 166, 182, 210 or 218mm. etc.; then one or more strings of S are connected in pure parallel. Generally, the number of strings of S is controlled between 1 and 7 to ensure that the overall current of the component does not exceed 20A. A diode is connected in parallel between the positive and negative poles of the final component output for protection. , In addition, the battery panel 1 in this embodiment is blackened.
  • the battery panel 1 is composed of several battery subsets 11 with the same specifications. Each battery subset 11 is connected in series in sequence, and any battery subset 11 is connected in parallel with a protection member 2.
  • the battery subset 11 includes one or several shingled battery strings 111 with the same specifications, and each shingled battery string 111 is connected in parallel in sequence.
  • the size of the component is designed to be 1180*580, and the small piece 1111 is designed and formed as a shingled cell piece.
  • the battery panel 1 includes several battery subsets 11.
  • the battery subsets 11 are formed by several S connected in parallel, and the number of S strings between each battery subset 11 is the same.
  • the length of S between each battery subset 11 is the same ( That is, the number of battery sheets is the same), and the length of S in each independent battery subset 11 is the same.
  • 158.75*158.75mm battery sheets are used for arrangement design.
  • the size of the small piece 1111 is 31.75mm*158.75mm.
  • the small piece 1111 first forms an S of 18pcs/string, and then three series are connected in parallel to form a Battery subset 11, then 2 identical battery subsets 11 are connected in series, and each battery subset 11 is connected in parallel with a diode.
  • the battery panel 1 in this embodiment is blackened.
  • the battery panel 1 is composed of several battery subsets 11 with different specifications. Each battery subset 11 is connected in series in sequence, and any battery subset 11 is connected in parallel with a protection member 2 , the battery subset 11 includes one or several shingled battery strings 111 with the same specifications, and each shingled battery string 111 is connected in parallel in sequence.
  • the embodiment shows the flexibility of using the shingled battery string 111 design, that is, two identical or different power supply subsets can be used for series design to achieve the purpose of optimal screen-to-body ratio, or To adopt a horizontal design, in which two identical modules are used, not only have different appearances (horizontal and vertical), but also have different power design options.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A crystalline silicon BIPV building component comprises a protection piece and a cell panel which is suitable for blackening treatment. The cell panel consists of one or more cell subsets with the same specification or different specifications. The cell subsets are connected in series. Any of the cell subsets is in parallel connection with a protection piece. The cell subset comprises one or more shingled cell strings with the same specification. The shingled cell strings are sequentially connected in parallel. The building component in the present application has a high screen-to-body ratio and high amount of power generation per unit area, and is suitable for different building settings. The front face of the shingled cell string is free of welding strips, and thus does not require the welding strips to be shielded, thereby significantly reducing the costs related to materials and labor, improving the productivity and lowering the manufacturing cost.

Description

一种晶硅BIPV建筑构件A crystalline silicon BIPV building component
本申请要求于2022年4月11日提交中国专利局、申请号为202220824469.7、申请名称为“一种晶硅BIPV建筑构件”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application filed with the China Patent Office on April 11, 2022, with application number 202220824469.7 and the application name "A crystalline silicon BIPV building component", the entire content of which is incorporated into this application by reference. .
技术领域Technical field
本申请属于光伏组件技术领域，具体地说，涉及一种晶硅BIPV建筑构件。The present application belongs to the technical field of photovoltaic modules, and specifically relates to a crystalline silicon BIPV building component.
背景技术Background technique
在中国“3060”碳达峰碳中和目标的大背景下，建筑能耗成为行业关切，在绿色建筑、超低能耗建筑发展的大背景下，光伏建筑一体化(BIPV)能够使建筑本身由耗能单元转变为能量输出单位，使建筑零能耗成为可能，BIPV迎来了新的发展机遇。In the context of China's "3060" carbon peak carbon neutrality goal, building energy consumption has become an industry concern. In the context of the development of green buildings and ultra-low energy buildings, building integrated photovoltaics (BIPV) can make the building itself Energy-consuming units are transformed into energy-output units, making zero energy consumption possible in buildings, and BIPV has ushered in new development opportunities.
现有技术存在的缺陷：1、由于建筑构件的尺寸和形状不同于常规光伏组件，加之尺寸形状多样化的特点，在设计内部电池片排布设计时，会受限于形状以及电池片本身尺寸的影响，导致发电单元的面积占比较低，从而导致整体构件的转换效率较低；2、BIPV建筑构件单位面积发电量低(受限于构件形状以及电池片本身尺寸的匹配，导致发电面积屏占比较低)；3、制造成本高：为了适配建筑场景，对于BIPV建筑构件的外观要求较高，需要将电池片的焊带进行遮盖处理，从而增加了制造成本(例如材料成本增加、人均产能降低，等等)；4、外观一致性差：进行遮盖处理，仍存在电池片外观和遮蔽处颜色不一致的现象，从而降低整体美观性，阻碍BIPV的推广应用；5、受阴影遮挡影响大，当阴影遮挡时，功率损失高，且热斑温度高，降低构件寿命。Defects in the existing technology: 1. Since the size and shape of building components are different from conventional photovoltaic modules, and the characteristics of diverse sizes and shapes, the internal cell arrangement design will be limited by the shape and the size of the cells themselves. The impact of this leads to a low proportion of the area of the power generation unit, resulting in a low conversion efficiency of the overall component; 2. The low power generation per unit area of BIPV building components (limited by the shape of the component and the matching of the size of the cell itself, resulting in a small power generation area (low proportion); 3. High manufacturing cost: In order to adapt to the architectural scene, the appearance requirements of BIPV building components are higher, and the welding strips of the cells need to be covered, thus increasing the manufacturing cost (such as increased material costs, per capita Reduced production capacity, etc.); 4. Poor appearance consistency: after masking treatment, the appearance of the cell and the color of the masked area are still inconsistent, thereby reducing the overall aesthetics and hindering the promotion and application of BIPV; 5. Largely affected by shadow occlusion, When shadowed, the power loss is high and the hot spot temperature is high, which reduces the life of components.
有鉴于此，实有必要开发一种晶硅BIPV建筑构件，用以解决上述问题。In view of this, it is necessary to develop a crystalline silicon BIPV building component to solve the above problems.
发明内容Contents of the invention
有鉴于此，本申请的目的是提供一种晶硅BIPV建筑构件，用以实现BIPV建筑构件的高效发电。In view of this, the purpose of this application is to provide a crystalline silicon BIPV building component to achieve efficient power generation of BIPV building components.
为达到上述目的，本申请采用的技术方案是：In order to achieve the above purpose, the technical solution adopted in this application is:
一种晶硅BIPV建筑构件，包括 A crystalline silicon BIPV building component, including
保护件；以及protective parts; and
电池板，其适于黑化处理，其中，所述电池板由一个或若干规格相同或不同的电池子集组成，各所述电池子集依次串联，任一所述电池子集均并联有所述保护件，所述电池子集包括一个或若干规格相同的叠瓦电池串，各所述叠瓦电池串依次并联。Battery board, which is suitable for blackening treatment, wherein the battery board is composed of one or several battery subsets with the same or different specifications, each of the battery subsets are connected in series in sequence, and any of the battery subsets are connected in parallel. In the protection member, the battery subset includes one or several shingled battery strings with the same specifications, and each of the shingled battery strings is connected in parallel in sequence.
进一步的，所述叠瓦电池串的数量为1-7串。Further, the number of shingled battery strings is 1-7 strings.
进一步的，所述叠瓦电池串包括Further, the shingled battery string includes
若干规格相同的小片，各所述小片依次叠瓦连接并且形成所述叠瓦电池串的正极和负极，以及A number of small pieces with the same specifications, each of the small pieces is laminated and connected in sequence to form the positive and negative electrodes of the shingled battery string, and
冲孔焊带，其电性连接在所述叠瓦电池串的正极和负极。The punched welding strip is electrically connected to the positive and negative electrodes of the shingled battery string.
进一步的，所述小片的数量为5-7片。Further, the number of small pieces is 5-7 pieces.
进一步的，所述保护件为二极管。Further, the protection component is a diode.
进一步的，还包括玻璃板，所述玻璃板做黑化处理，所述玻璃板具有正玻和背玻的双玻结构，所述正玻的非空气面印刷图形并遮盖至所述冲孔焊带处，所述正玻和所述背玻之间封装有PVB、EVA、POE中的任意一种材料。Further, it also includes a glass plate, which is blackened and has a double-glass structure of front glass and back glass. The non-air surface of the front glass is printed with graphics and covered to the punching welding. At the strip, any material from PVB, EVA, or POE is encapsulated between the front glass and the back glass.
进一步的，所述冲孔焊带处遮盖有黑胶带。Furthermore, the punched welding strip was covered with black tape.
进一步的，所述正玻和所述背玻均为钢化玻璃。Further, both the front glass and the back glass are tempered glass.
进一步的，所述正玻的厚度为4mm或3.2mm或其它尺寸，所述背玻的厚度为4mm或3.2mm或其它尺寸。Further, the thickness of the front glass is 4mm or 3.2mm or other dimensions, and the thickness of the back glass is 4mm or 3.2mm or other dimensions.
与现有技术相比，本申请的有益效果在于：首先，本申请中的小片可被匹配为三角形等不同的形状，其屏占比高，单位面积的发电量有极大的提高；其次，本申请可适用于不同的建筑场景，叠瓦电池串本身的正面无焊带设计，不需要做焊带的屏蔽处理，从而大幅降低了材料、人工的相关费用，提升了产能，降低了制造成本；再次，本申请中的外观一致性更高，利于BIPV的推广应用；再次，本申请中的叠瓦电池串为并联设计，受阴影遮挡影响小，功率损失低，热斑温度低，延长了构件寿命；本申请可根据系统设计中组件安装方向，进行横纵向设计来匹配，从而提升电站的整体外观。 Compared with the existing technology, the beneficial effects of this application are: first, the small chips in this application can be matched into different shapes such as triangles, with a high screen-to-body ratio, and the power generation per unit area is greatly improved; secondly, This application can be applied to different construction scenarios. The front side of the shingled battery string itself is designed without solder strips, and does not need to be shielded by the solder strips. This greatly reduces the related costs of materials and labor, increases production capacity, and reduces manufacturing costs. ; Thirdly, the appearance consistency in this application is higher, which is conducive to the promotion and application of BIPV; Thirdly, the shingled battery strings in this application are designed in parallel, which are less affected by shadow occlusion, low power loss, low hot spot temperature, and extended Component life; this application can match the horizontal and vertical design according to the installation direction of the components in the system design, thereby improving the overall appearance of the power station.
附图说明Description of the drawings
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.
图1为根据本申请第一实施方式提出的一种晶硅BIPV建筑构件中叠瓦电池串的俯视图；Figure 1 is a top view of a shingled battery string in a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
图2为根据本申请第一实施方式提出的一种晶硅BIPV建筑构件中体图1的主视图；Figure 2 is a front view of Figure 1 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
图3为根据本申请第一实施方式提出的一种晶硅BIPV建筑构件的俯视图；Figure 3 is a top view of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
图4为根据本申请第一实施方式提出的一种晶硅BIPV建筑构件中图3的结构视图；Figure 4 is a structural view of Figure 3 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
图5为根据本申请第二实施方式提出的一种晶硅BIPV建筑构件的俯视图；Figure 5 is a top view of a crystalline silicon BIPV building component proposed according to the second embodiment of the present application;
图6为根据本申请第一实施方式提出的一种晶硅BIPV建筑构件中图5的结构视图；Figure 6 is a structural view of Figure 5 of a crystalline silicon BIPV building component proposed according to the first embodiment of the present application;
图7为根据本申请第三实施方式提出的一种晶硅BIPV建筑构件的俯视图；Figure 7 is a top view of a crystalline silicon BIPV building component proposed according to the third embodiment of the present application;
图8为根据本申请第三实施方式提出的一种晶硅BIPV建筑构件中图7的结构视图。Fig. 8 is a structural view of Fig. 7 of a crystalline silicon BIPV building component proposed according to the third embodiment of the present application.
附图中涉及的附图标记和组成部分说明：
1-电池板；11-电池子集；111-叠瓦电池串；1111-小片；1112-冲孔焊带；
2-保护件。Reference signs and component descriptions involved in the drawings:
1-battery board; 11-battery subset; 111-shingled battery string; 1111-small piece; 1112-punched welding strip;
2-Protective parts.
具体实施方式Detailed ways
下面将通过具体实施方式对本申请的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提 下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions of the present application will be clearly and completely described below through specific implementations. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, those of ordinary skill in the art can All other embodiments obtained below belong to the protection scope of this application.
实施例一Embodiment 1
参考图1至图4，一种晶硅BIPV建筑构件，包括保护件2、电池板1，电池板1适于做黑化处理，其中，电池板1由一个规格相同电池子集11组成，电池子集11与保护件2并联，电池子集11包括一个或若干规格相同的叠瓦电池串111，各叠瓦电池串111依次并联，作为优选的是保护件2为二极管。本申请可适用于不同的建筑场景，叠瓦电池串111本身的正面无焊带设计，不需要做焊带的屏蔽处理，从而大幅降低了材料、人工的相关费用，提升了产能，降低了制造成本；其次，本申请中的叠瓦电池串111为并联设计，受阴影遮挡影响小，功率损失低，热斑温度低，延长了构件寿命；再次，本申请中的外观一致性更高，利于BIPV的推广应用；再次，本申请可根据系统设计中组件安装方向，进行横纵向设计来匹配，从而提升电站的整体外观。Referring to Figures 1 to 4, a crystalline silicon BIPV building component includes a protective member 2 and a battery panel 1. The battery panel 1 is suitable for blackening treatment. The battery panel 1 is composed of a battery subset 11 with the same specifications. The battery The subset 11 is connected in parallel with the protection member 2. The battery subset 11 includes one or several shingled battery strings 111 with the same specifications. Each shingled battery string 111 is connected in parallel in turn. Preferably, the protection member 2 is a diode. This application can be applied to different construction scenarios. The front side of the shingled battery string 111 itself is designed without soldering strips, and does not need to be shielded by the soldering strips, thus significantly reducing the related costs of materials and labor, increasing production capacity, and reducing manufacturing costs. cost; secondly, the shingled battery string 111 in this application is a parallel design, which is less affected by shadow occlusion, has low power loss and low hot spot temperature, which extends the life of the components; thirdly, the appearance consistency in this application is higher, which is beneficial to Promotion and application of BIPV; Thirdly, this application can match the horizontal and vertical design according to the installation direction of the components in the system design, thereby improving the overall appearance of the power station.
进一步的，叠瓦电池串111包括若干规格相同的小片1111以及冲孔焊带1112，小片1111由叠瓦电池片按照网板设计切割N等分(N一般为5-7片)而来，小片1111可被匹配为三角形等不同的形状，其屏占比高，单位面积的发电量有极大的提高，各小片1111依次叠瓦连接并用导电胶在各小片1111相应的正负极之间进行固化粘接，以形成叠瓦电池串111本体，叠瓦电池串111本体两侧形成有叠瓦电池串111的正极和负极，冲孔焊带1112(将一定宽度如8*0.12mm的镀锡铅铜带进行冲孔)电性连接在叠瓦电池串111的正极和负极上，从而形成一串完整叠瓦电池串111(下述称此为S)，为保证其安全可靠性，通常S的长度控制在1200mm以内。Further, the shingled battery string 111 includes a number of small pieces 1111 with the same specifications and punched welding strips 1112. The small pieces 1111 are cut from the shingled battery pieces into N equal parts according to the mesh design (N is generally 5-7 pieces). The small pieces 1111 1111 can be matched into different shapes such as triangles. Its screen-to-body ratio is high and the power generation per unit area is greatly improved. Each small piece 1111 is connected in sequence and conductive glue is used between the corresponding positive and negative electrodes of each small piece 1111. Curing and bonding to form the shingled battery string 111 body. The positive and negative electrodes of the shingled battery string 111 are formed on both sides of the shingled battery string 111 body. The punched welding ribbon 1112 (tinned with a certain width such as 8*0.12mm Lead and copper strips are punched) and are electrically connected to the positive and negative electrodes of the shingled battery string 111, thereby forming a complete series of shingled battery strings 111 (hereinafter referred to as S). In order to ensure its safety and reliability, S is usually The length is controlled within 1200mm.
此外，还包括玻璃板，作为优选的是，玻璃板具有正玻和背玻的双玻结构，正玻可采用超白压花钢化玻璃，背玻可采用普通钢化玻璃，其两层玻璃厚度可根据具体使用环境进行选择，例如4mm+4mm，4mm+3.2mm，此外，正玻和北玻的尺寸并不限定为上述尺寸，玻璃板可设计为全黑外观，正玻的非空气面印刷图形并遮盖至冲孔焊带1112处，(亦可用黑色膜带在冲孔焊带1112处进行遮盖)，其压花可使构件具备防眩光功能，正玻和背玻之间封装有PVB、EVA、POE的任意一种材料，此外，封装材料并不限定为上述的封装材料，封装材料增加了玻璃板的长期耐候性。 In addition, it also includes a glass plate. Preferably, the glass plate has a double-glass structure of front glass and back glass. The front glass can be ultra-white embossed tempered glass, and the back glass can be ordinary tempered glass. The thickness of the two layers of glass can be Choose according to the specific use environment, such as 4mm+4mm, 4mm+3.2mm. In addition, the sizes of normal glass and north glass are not limited to the above sizes. The glass plate can be designed with an all-black appearance, and graphics can be printed on the non-air surface of the normal glass. And cover it to the punching strip 1112 (you can also use black film tape to cover the punching strip 1112), its embossing can make the component have anti-glare function, and PVB and EVA are encapsulated between the front glass and the back glass. , any material of POE. In addition, the packaging material is not limited to the above-mentioned packaging materials. The packaging material increases the long-term weather resistance of the glass plate.
在该实施例中，电池板1为只有一个电池子集11的纯并联电路，即根据整体构件尺寸设计S的长度，其宽度可选用晶硅电池片尺寸如158.75、166、182、210或218mm等；然后一串或数串S进行纯并联的连接，一般S的串数控制在1-7串，保证其构件整体电流不要超过20A，在最终构件输出的正负极之间并联二极管进行保护，此外，该实施例中的电池板1做黑化处理。In this embodiment, the battery panel 1 is a pure parallel circuit with only one battery subset 11, that is, the length of S is designed according to the overall component size, and its width can be selected from crystalline silicon battery cell sizes such as 158.75, 166, 182, 210 or 218mm. etc.; then one or more strings of S are connected in pure parallel. Generally, the number of strings of S is controlled between 1 and 7 to ensure that the overall current of the component does not exceed 20A. A diode is connected in parallel between the positive and negative poles of the final component output for protection. , In addition, the battery panel 1 in this embodiment is blackened.
实施例二Embodiment 2
参考图5及图6，与实施例一不同的是，电池板1由若干规格相同的电池子集11组成，各电池子集11依次串联，任一电池子集11均并联一个保护件2，电池子集11包括一个或若干规格相同的叠瓦电池串111，各叠瓦电池串111依次并联。在该实施例中，对构件为1180*580的尺寸进行设计，且小片1111为叠瓦电池片设计形成。Referring to Figures 5 and 6, what is different from Embodiment 1 is that the battery panel 1 is composed of several battery subsets 11 with the same specifications. Each battery subset 11 is connected in series in sequence, and any battery subset 11 is connected in parallel with a protection member 2. The battery subset 11 includes one or several shingled battery strings 111 with the same specifications, and each shingled battery string 111 is connected in parallel in sequence. In this embodiment, the size of the component is designed to be 1180*580, and the small piece 1111 is designed and formed as a shingled cell piece.
电池板1包括若干电池子集11，电池子集11由若干的S进行并联形成，且各电池子集11之间的S串数相同，同时，各个电池子集11之间S的长度相同(即电池片的数量相同)，每个独立电池子集11内S的长度相同。具体的是，本实施例中：采用158.75*158.75mm电池片来进行排布设计，小片1111的尺寸为31.75mm*158.75mm，此小片1111先形成18pcs/串的S，然后3串并联形成一个电池子集11，然后2个相同的电池子集11进行串联，并且每个电池子集11并联一个二极管。此外，该实施例中的电池板1做黑化处理。The battery panel 1 includes several battery subsets 11. The battery subsets 11 are formed by several S connected in parallel, and the number of S strings between each battery subset 11 is the same. At the same time, the length of S between each battery subset 11 is the same ( That is, the number of battery sheets is the same), and the length of S in each independent battery subset 11 is the same. Specifically, in this embodiment: 158.75*158.75mm battery sheets are used for arrangement design. The size of the small piece 1111 is 31.75mm*158.75mm. The small piece 1111 first forms an S of 18pcs/string, and then three series are connected in parallel to form a Battery subset 11, then 2 identical battery subsets 11 are connected in series, and each battery subset 11 is connected in parallel with a diode. In addition, the battery panel 1 in this embodiment is blackened.
实施例三Embodiment 3
参考图7及图8，与实施例一不同的是，电池板1由若干规格不同的电池子集11组成，各电池子集11依次串联，任一电池子集11均并一个联保护件2，电池子集11包括一个或若干规格相同的叠瓦电池串111，各叠瓦电池串111依次并联。本实施例中分别形成两个不同的电池子集11，具体的是，一个电池子集11由18pcs/串的S组成，另外一个电池子集11由19pcs/串的S组成，每个独立电池子集11内S的长度不相同。其发电面积占比：158.75*3*(583.45+552.8)/580*1180＝79％。Referring to Figures 7 and 8, what is different from Embodiment 1 is that the battery panel 1 is composed of several battery subsets 11 with different specifications. Each battery subset 11 is connected in series in sequence, and any battery subset 11 is connected in parallel with a protection member 2 , the battery subset 11 includes one or several shingled battery strings 111 with the same specifications, and each shingled battery string 111 is connected in parallel in sequence. In this embodiment, two different battery subsets 11 are formed. Specifically, one battery subset 11 is composed of 18pcs/string of S, and the other battery subset 11 is composed of 19pcs/string of S. Each independent battery The lengths of S in subset 11 are not the same. Its power generation area ratio: 158.75*3*(583.45+552.8)/580*1180=79%.
在实施例中显示出了使用叠瓦电池串111设计的灵活性，即可以采用两个相同或不同电源子集进行串联设计，以达到最佳屏占比的目的，亦可 以采用横向设计，其中，使用两个相同模块，不仅具有不同外观(横纵向)，而且具有不同功率设计的选择。The embodiment shows the flexibility of using the shingled battery string 111 design, that is, two identical or different power supply subsets can be used for series design to achieve the purpose of optimal screen-to-body ratio, or To adopt a horizontal design, in which two identical modules are used, not only have different appearances (horizontal and vertical), but also have different power design options.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下在其他实施例中实现。因此，本申请将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。 The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

  1. 一种晶硅BIPV建筑构件，其特征在于，包括A crystalline silicon BIPV building component, characterized by including:
    保护件；以及protective parts; and
    电池板，其适于黑化处理，其中，所述电池板由一个或若干规格相同或不同的电池子集组成，各所述电池子集依次串联，任一所述电池子集均并联有所述保护件，所述电池子集包括一个或若干规格相同的叠瓦电池串，各所述叠瓦电池串依次并联。Battery board, which is suitable for blackening treatment, wherein the battery board is composed of one or several battery subsets with the same or different specifications, each of the battery subsets are connected in series in sequence, and any of the battery subsets are connected in parallel. In the protection member, the battery subset includes one or several shingled battery strings with the same specifications, and each of the shingled battery strings is connected in parallel in sequence.
  2. 如权利要求1所述的一种晶硅BIPV建筑构件，其特征在于，所述叠瓦电池串的数量为1-7串。A crystalline silicon BIPV building component according to claim 1, characterized in that the number of the shingled battery strings is 1-7 strings.
  3. 如权利要求1所述的一种晶硅BIPV建筑构件，其特征在于，所述叠瓦电池串包括A crystalline silicon BIPV building component according to claim 1, characterized in that the shingled cell strings include
    若干规格相同的小片，各所述小片依次叠瓦连接并且形成所述叠瓦电池串的正极和负极，以及A number of small pieces with the same specifications, each of the small pieces is laminated and connected in sequence to form the positive and negative electrodes of the shingled battery string, and
    冲孔焊带，其电性连接在所述叠瓦电池串的正极和负极。The punched welding strip is electrically connected to the positive and negative electrodes of the shingled battery string.
  4. 如权利要求3所述的一种晶硅BIPV建筑构件，其特征在于，所述小片的数量为5-7片。A crystalline silicon BIPV building component according to claim 3, characterized in that the number of said small pieces is 5-7 pieces.
  5. 如权利要求1所述的一种晶硅BIPV建筑构件，其特征在于，所述保护件为二极管。A crystalline silicon BIPV building component according to claim 1, characterized in that the protective component is a diode.
  6. 如权利要求3所述的一种晶硅BIPV建筑构件，其特征在于，还包括玻璃板，所述玻璃板做黑化处理，所述玻璃板具有正玻和背玻的双玻结构，所述正玻的非空气面印刷图形并遮盖至所述冲孔焊带处，所述正玻和所述背玻之间封装有PVB、EVA、POE中的任意一种材料。A crystalline silicon BIPV building component as claimed in claim 3, further comprising a glass plate, the glass plate being blackened, the glass plate having a double glass structure of front glass and back glass, The non-air surface of the front glass is printed with graphics and covered to the punched welding strip, and any material from PVB, EVA, or POE is sealed between the front glass and the back glass.
  7. 如权利要求6所述的一种晶硅BIPV建筑构件，其特征在于，所述冲孔焊带处遮盖有黑胶带。A crystalline silicon BIPV building component according to claim 6, characterized in that the punched welding tape is covered with black tape.
  8. 如权利要求6所述的一种晶硅BIPV建筑构件，其特征在于，所述正玻和所述背玻均为钢化玻璃。A crystalline silicon BIPV building component according to claim 6, characterized in that both the front glass and the back glass are tempered glass.
  9. 如权利要求6所述的一种晶硅BIPV建筑构件，其特征在于，所述正玻的厚度为4mm或3.2mm，所述背玻的厚度为4mm或3.2mm。 A crystalline silicon BIPV building component according to claim 6, characterized in that the thickness of the front glass is 4mm or 3.2mm, and the thickness of the back glass is 4mm or 3.2mm.
PCT/CN2023/078356 2022-04-11 2023-02-27 Crystalline silicon bipv building component WO2023197759A1 (en)

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