CN102339901B - Low-resistance connection method of solar battery module and manufacturing method thereof - Google Patents

Low-resistance connection method of solar battery module and manufacturing method thereof Download PDF

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Publication number
CN102339901B
CN102339901B CN2011102172530A CN201110217253A CN102339901B CN 102339901 B CN102339901 B CN 102339901B CN 2011102172530 A CN2011102172530 A CN 2011102172530A CN 201110217253 A CN201110217253 A CN 201110217253A CN 102339901 B CN102339901 B CN 102339901B
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battery
solar cell
low
positive electrode
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CN102339901A (en
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张舒
陶武松
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Trina Solar Co Ltd
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Changzhou Trina Solar Energy Co Ltd
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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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

The invention relates to a low-resistance connection method of a solar battery module and a manufacturing method thereof. The solar battery module is divided into regions A and B; in the region B, a positive electrode and a back electrode of a battery plate are vertically printed, and the adjacent battery strings are vertically connected mutually by interconnection bars on a positive face and a back face of the battery plate; and in the region A, a positive electrode and a back electrode of a battery plate are printed in parallel, and the adjacent battery strings are connected by bus bars in the region A. According to the invention, the lengths of the bus bars can be reduced by over 1330mm, the lengths of cables (4mm2 wire diameter) of a connector can be shortened by over 636mm, and the series resistance of the module can be reduced by 15-20m omega integrally, thus the output power of a single module can be improved by 1-1.3W on the premise of reducing the material cost.

Description

Solar module low resistance connected mode and manufacture craft thereof
Technical field
The present invention relates to a kind of solar module, especially a kind of optimal design that the connected mode of battery sheet is carried out.
Background technology
For conventional crystal silicon solar cell assembly (as Fig. 1), the front electrode of battery sheet is parallel with the position of backplate, in the process that is connected in series of adjacent cell string, certainly will introduce extra busbar like this, thereby increase the series resistance of assembly, cause extra power ohmic loss.And on the other hand, the integrated form terminal box of assembly is arranged on assembly minor face midline position usually, and this design not only can increase the length of exit busbar, and can increase the length of cable.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of novel battery sheet connected mode and manufacture craft thereof, can effectively reduce bus bar length, shorten the length of connector cable line, reduce the series resistance of assembly, and then improve conversion efficiency and the power output of solar module.
The technical solution adopted in the present invention is: a kind of solar module low resistance connected mode, described solar module is divided into A and two zones of B, in described B zone, the positive electrode of battery sheet is vertical with back electrode to be printed, adjacent battery strings by battery sheet in the B zone just, the interconnector perpendicular interconnection at the back side; The parallel printing with back electrode of the positive electrode of battery sheet in described a-quadrant, adjacent battery strings connects by busbar in the a-quadrant.
Further, in order effectively to shorten the bus bar length of whole battery group string in the a-quadrant, shorten the length of output cable, be provided with split type terminal box in the a-quadrant of the present invention, and each terminal box inside is provided with bypass diode.
The present invention also provides this solar module low resistance manufacture craft simultaneously, may further comprise the steps:
1) solar module is divided into two zones of A, B;
2) positive electrode to the battery sheet in the B zone carries out vertical the printing with back electrode;
3) use interconnector to carry out single weldering of front electrode to the battery sheet in the B zone;
4) two adjacent in B zone battery sheets are vertically placed after finishing, carried out series welding in the series welding template;
5) positive electrode with two the adjacent battery sheets in the a-quadrant carries out parallel printing with back electrode;
6) battery sheet adjacent in the a-quadrant is connected in series by busbar.
The invention has the beneficial effects as follows: can effectively reduce more than the bus bar length 1330mm, shorten more than the length 636mm in connector cable line (4mm2 line footpath), can reduce assembly series resistance 15～20m Ω generally, and then under the prerequisite that reduces material cost, single component can improve power output 1～1.3W.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is conventional solar module front view;
Fig. 2 is low resistance connected mode solar module front view of the present invention;
Among the figure: 1, conventional batteries; 2, interconnector; 3, busbar; 4, isolate backboard; 5, output cable; 6, integrated form terminal box; 7, just, the vertical printed battery of back electrode; 8, split type terminal box.
Embodiment
The present invention is further detailed explanation with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 2, with 6 the string 6 polycrystal silicon cell assemblies be example, a kind of solar module low resistance connected mode, described solar module is divided into A and two zones of B, the battery 7 in B zone adopts positive electrode, printed design that back electrode is vertical at the silk screen printing end, adjacent cell ganged up in B zone battery sheet just, interconnector 2 perpendicular interconnections at the back side, thereby the busbar in B zone is saved.The battery of a-quadrant still adopts traditional positive electrode, the parallel mode of printing of back electrode.
Split type terminal box 8 designs are adopted at the lead-out wire position of a-quadrant, assembly, can effectively shorten busbar 3 length of whole battery group string, shorten the length of output cable 5; Split type terminal box is provided with isolation by plate 5.Each split type terminal box 8 inside is provided with bypass diode.
Manufacture craft of the present invention is: 1) solar module is divided into two zones of A, B; 2) positive electrode to the battery sheet in the B zone carries out vertical the printing with back electrode; 3) use interconnector to carry out single weldering of front electrode to the battery sheet in the B zone; 4) two adjacent in B zone battery sheets are vertically placed after finishing, carried out series welding in the series welding template; 5) positive electrode with two the adjacent battery sheets in the a-quadrant carries out parallel printing with back electrode; 6) battery sheet adjacent in the a-quadrant is connected in series by busbar.
The welding of battery sheet can adopt contact welding, thermal radiation, hot blast welding or conducting resinl/conductive tape bonding, lamination, lamination, clean, frame up, manufacture craft that test and packaging process are same as common solar module.
Shown in Figure 1 is conventional crystal silicon solar cell assembly, the front electrode of battery sheet 1 is parallel with the position of backplate, in the process that is connected in series of adjacent cell string, certainly will introduce extra busbar like this, thereby increase the series resistance of assembly, cause extra power ohmic loss.And on the other hand, the integrated form terminal box 6 of assembly is arranged on assembly minor face midline position usually, and this design not only can increase the length of exit busbar, and can increase the length of cable 5.
Therefore, compared with prior art, adopt the battery plate electrode design of B of the present invention zone and assembly connecting structure, can improve conversion efficiency and the power output of solar module, for the making of high efficiency crystal silicon solar assembly provides a cover solution.
Just the specific embodiment of the present invention of describing in the above specification, various not illustrating is construed as limiting flesh and blood of the present invention, the person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence of an invention and scope.

Claims (3)

1.一种太阳能电池组件低电阻连接方式，其特征在于：所述的太阳能电池组件分为A和B两个区域，在所述的B区域中，电池(7)的正电极与背电极垂直印刷，相邻的电池串通过B区域内电池片正、背面的互连条(2)垂直互连；在所述的A区域内电池片的正电极与背电极平行印刷，相邻的电池串通过A区域内汇流条(3)连接。1. A low-resistance connection method for solar cell components, characterized in that: the solar cell component is divided into two regions, A and B, and in the B region, the positive electrode of the battery (7) is perpendicular to the back electrode Printing, the adjacent battery strings are vertically interconnected through the interconnection strips (2) on the front and back of the battery sheet in the B area; in the A area, the positive electrode and the back electrode of the battery sheet are printed in parallel, and the adjacent battery strings Connection via bus bar (3) in area A. 2.如权利要求1所述的太阳能电池组件低电阻连接方式，其特征在于：所述的A区域内设置有分体式接线盒(8)，每个接线盒内部设置有旁路二极管。2. The low-resistance connection method of solar cell modules according to claim 1, characterized in that: a split junction box (8) is arranged in the area A, and a bypass diode is arranged inside each junction box. 3.一种太阳能电池组件低电阻制作工艺，其特征在于包括以下步骤：3. A low-resistance manufacturing process for solar cell modules, characterized in that it comprises the following steps: 1)将太阳能电池组件划分为A、B两个区域；1) Divide the solar cell module into two regions, A and B; 2)对B区域内的电池片的正电极与背电极进行垂直印刷；2) Vertically print the positive electrode and the back electrode of the cell in area B; 3)对B区域内的电池片使用互连条进行正面电极的单焊；3) Use interconnection strips for single welding of the front electrodes of the cells in area B; 4)完成后将B区域内相邻的两片电池片垂直放置，在串焊模板上进行串焊；4) After completion, place two adjacent cells in area B vertically, and perform string welding on the string welding template; 5)将A区域内的相邻的两个电池片的正电极与背电极进行平行印刷；5) Parallel printing the positive electrodes and the back electrodes of two adjacent battery sheets in the A region; 6)对A区域内相邻的电池片通过汇流条串联连接。6) The adjacent battery slices in area A are connected in series through bus bars.
CN2011102172530A 2011-07-30 2011-07-30 Low-resistance connection method of solar battery module and manufacturing method thereof Active CN102339901B (en)

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CN102916621B (en) * 2012-10-25 2015-08-12 英利能源（中国）有限公司 Solar cell system
CN104051559A (en) * 2014-06-23 2014-09-17 山东力诺光伏高科技有限公司 A method for connecting photovoltaic modules
CN107363388B (en) * 2017-06-30 2019-11-08 中国电子科技集团公司第十八研究所 Welding method on braided cable board for space solar panel
US10630235B2 (en) 2017-08-28 2020-04-21 Tongwei Solar Energy (Hefei) Co., Ltd. Internal protection circuit structure of photovoltaic modules having independent power generating unit
CN108054228A (en) * 2017-12-11 2018-05-18 杭州博阳太阳能科技有限公司 A kind of solar cell module and its manufacturing method
CN111628027B (en) * 2020-06-08 2023-09-05 中节能太阳能科技（镇江）有限公司 An anti-crack component

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CN101225934A (en) * 2008-01-29 2008-07-23 江阴浚鑫科技有限公司 Laminating integral crystalline silicon solar energy photovoltaic device and method of preparing the same
CN201215809Y (en) * 2008-06-30 2009-04-01 无锡尚德太阳能电力有限公司 Construction of solar cell component
CN101478010A (en) * 2008-07-07 2009-07-08 山东科明太阳能光伏有限公司 Double side photovoltaic battery wall component and manufacturing process thereof
CN101866962A (en) * 2010-06-19 2010-10-20 浙江环球光伏科技有限公司 BIPV (Building Integrated Photovoltaics) solar module and manufacture method thereof
CN102064224A (en) * 2010-12-09 2011-05-18 泰通(泰州)工业有限公司 Junction box for double-sided battery pack
CN102136511A (en) * 2011-02-09 2011-07-27 东莞市中海光电材料有限公司 Solar panel installation device and installation method

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Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
CN101060276A (en) * 2006-09-01 2007-10-24 樊后鹏 Automatic escape emission power generator of the permanent induction electromagnetic field change-section conductor charge
CN101225934A (en) * 2008-01-29 2008-07-23 江阴浚鑫科技有限公司 Laminating integral crystalline silicon solar energy photovoltaic device and method of preparing the same
CN201215809Y (en) * 2008-06-30 2009-04-01 无锡尚德太阳能电力有限公司 Construction of solar cell component
CN101478010A (en) * 2008-07-07 2009-07-08 山东科明太阳能光伏有限公司 Double side photovoltaic battery wall component and manufacturing process thereof
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CN102064224A (en) * 2010-12-09 2011-05-18 泰通(泰州)工业有限公司 Junction box for double-sided battery pack
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Address after: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou

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Address before: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou

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