CN202004028U - Solar cell assembly - Google Patents

Solar cell assembly Download PDF

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Publication number
CN202004028U
CN202004028U CN 201120135578 CN201120135578U CN202004028U CN 202004028 U CN202004028 U CN 202004028U CN 201120135578 CN201120135578 CN 201120135578 CN 201120135578 U CN201120135578 U CN 201120135578U CN 202004028 U CN202004028 U CN 202004028U
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CN
China
Prior art keywords
type solar
solar cell
battery sheet
cell
solar battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201120135578
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Chinese (zh)
Inventor
陶武松
张舒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trina Solar Co Ltd
Original Assignee
Changzhou Trina Solar Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Trina Solar Energy Co Ltd filed Critical Changzhou Trina Solar Energy Co Ltd
Priority to CN 201120135578 priority Critical patent/CN202004028U/en
Application granted granted Critical
Publication of CN202004028U publication Critical patent/CN202004028U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model relates to a solar cell assembly, which comprises a plurality of groups of cell sets connected with each other. Each cell set comprises an N type solar cell and a P type solar cell. A conductive back plate is arranged on the backlight surface of the cell, the illuminated surface of the N type solar cell of the cell set and the illuminated surface of the P type solar cell of the cell set are connected through narrow interconnecting strips, adjacent cell sets are arranged according to an arrangement way that the N type solar cell is adjacent to the P type solar cell, the conductive back plate of the backlight surface of the N type solar cell is connected with the conductive back plate of the backlight surface of the P type solar cell, and the N type solar cell and the P type solar cell of the plurality of cell sets are adjacent to each other. The shading area is reduced by reducing the section area of a welding strip of the illuminated surface, and series resistance is reduced by adopting copper foil conductive back plates, thereby improving current collecting density. Illuminated surfaces enable more sunshine to enter cells to perform photoelectric conversion, and the backlight surfaces adopt the copper foil conductive back plates to replace traditional interconnecting strips, thereby being capable of reducing the series resistance and enabling more currents to be collected.

Description

A kind of solar module
Technical field
The utility model relates to a kind of solar module.
Background technology
For crystal silicon solar battery component, adopt 2~3 zinc-plated copper strips to connect both positive and negative polarity between the battery sheet usually, the interconnecting strip of sensitive surface and shady face is measure-alike, as shown in Figure 1.In order to promote photoelectric conversion efficiency, the interconnecting strip of sensitive surface can require to reduce as far as possible the shading area, and the interconnecting strip of shady face adopts the big welding of sectional area, can increase electric current collection.Present technology is divided into: 1. adopt narrow and thick welding, narrow welding can reduce the shading area of sensitive surface, and thick welding can amass reduction series resistance, the possibility that the battery sheet broke when still thick welding can increase lamination by increasing section; 2.T type welding: the narrow welding of sensitive surface, shady face wide welding band, but welding processing technology difficulty, and cost height.
The utility model content
Technical problem to be solved in the utility model is: a kind of solar module is provided, improves the conversion efficiency and the power output of solar module.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of solar module, comprise the interconnective battery pack of many groups, each battery pack comprises a N type solar battery sheet and a P type solar battery sheet, the shady face of battery sheet has conductive backings, N type solar battery sheet in the battery pack is connected with narrow interconnecting strip with the sensitive surface of P type solar battery sheet, arrange by the N type solar battery sheet mode adjacent between the adjacent cell group, and the adjacent N type solar battery sheet between battery pack is connected with the conductive backings of the shady face of P type solar battery sheet with P type solar battery sheet.
N type solar battery sheet in the battery pack is connected with 1~3 narrow and thin interconnecting strip with the sensitive surface of P type solar battery sheet, adjacent N type solar battery sheet between battery pack is connected by Copper Foil with the conductive backings of the shady face of P type solar battery sheet, and conductive backings is connected by conducting resinl with cell back light face.
The conducting resinl branch is provided with 6 sections, is evenly distributed on respectively in the bonding pad of conductive backings and cell back light face.
The beneficial effects of the utility model are: promptly reduce the shading area by reducing sensitive surface welding sectional area, by the conductive backings that adopts Copper Foil series resistance is reduced, increase electric current collection density; The new design of sensitive surface can make more sunlight enter battery and opto-electronic conversion takes place on the one hand; Shady face adopts the conductive backings of Copper Foil to replace traditional interconnecting strip, and conductive backings adopts conducting resinl to connect with being connected of cell back light face, and the link position of optimal design conducting resinl, and this design can reduce series resistance, and more electric current is collected.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified;
Fig. 1 is the connected mode of conventional solar cell;
Fig. 2 is the connected mode that connects in the solar battery group of carrying out with 2 interconnecting strip of the present utility model;
Fig. 3 of the present utility modelly carries out serial connection mode between solar battery group with conductive backings;
Fig. 4 is the connected mode of conductive backings of the present utility model and battery sheet;
Fig. 5 is the connected mode of solar cell string of the present utility model and string;
Among the figure, 1.N type solar battery sheet, 2.P type solar battery sheet 3. conductive backings, 4. conducting resinl.
Embodiment
Shown in Fig. 2,3 and 4, a kind of solar module, adopt a N type solar battery sheet 1 and a P type solar battery sheet 2 to be connected to a battery pack, the shady face of battery sheet has conductive backings 3, and conductive backings 3 is connected by conducting resinl 4 with cell back light face.Optimal design battery shady face conducting resinl 4 link positions, this position are 6 sections location points that are evenly distributed of cell back light face, collect to guarantee maximum current.Arrangement mode by series connection between battery pack connects:
A) connect operation in the battery pack: the interconnecting strip of sensitive surface reduces the shading area as far as possible, 2 battery sheets are chosen the battery sheet of N type and p type single crystal silicon diffusion respectively, and the sensitive surface of battery sheet adopts 1~3 thin interconnecting strip to connect, and the interconnecting strip composition can increase the content of silver in the composition of common interconnecting strip, and the interconnecting strip width reduces and the thickness increase, and then reduces resistivity;
B) serial connection operation: arrange by the N type solar battery sheet mode adjacent between the adjacent cell group with P type solar battery sheet, the interconnecting strip of shady face is collected as mentality of designing to increase current density, and the adjacent N type solar battery sheet (1) between battery pack is connected with Copper Foil with the conductive backings of the shady face of P type solar battery sheet (2).Increase its electric current collection and reduce resistance, improved the conversion efficiency and the power output of solar module.
C) lamination, lamination, clean, frame up, manufacture craft that test and packaging process are same as common solar module.Adopt above technology, guarantee that sensitive surface can receive more sunlight generation opto-electronic conversion on the one hand; On the other hand: shady face adopts the big conductive backings of sectional area, reduces series resistance, optimizes conducting resinl 4 link positions, increases electric current collection density; Make more sunlight generation opto-electronic conversion and more collected, further improve photoelectric conversion efficiency.
The sensitive surface of the battery sheet that Fig. 1 and 2 shows, what Fig. 3,4,5 showed is the shady face of battery sheet.
Fig. 5 is the schematic diagram that solar cell of the present utility model connects by busbar between string and string.

Claims (3)

1. solar module, it is characterized in that: comprise the interconnective battery pack of many groups, each battery pack comprises a N type solar battery sheet (1) and a P type solar battery sheet (2), the shady face of battery sheet has conductive backings, N type solar battery sheet (1) in the battery pack is connected with narrow interconnecting strip with the sensitive surface of P type solar battery sheet (2), arrange by N type solar battery sheet (1) mode adjacent between the adjacent cell group, and the adjacent N type solar battery sheet (1) between battery pack is connected with the conductive backings (3) of the shady face of P type solar battery sheet (2) with P type solar battery sheet (2).
2. a kind of solar module according to claim 1, it is characterized in that: the N type solar battery sheet (1) in the battery pack is connected with 1~3 narrow and thin interconnecting strip with the sensitive surface of P type solar battery sheet (2), adjacent N type solar battery sheet (1) between battery pack is connected by Copper Foil with the conductive backings (3) of the shady face of P type solar battery sheet (2), and conductive backings (3) is connected by conducting resinl (4) with cell back light face.
3. a kind of solar module according to claim 1 and 2 is characterized in that: described conducting resinl (4) branch is provided with 6 sections, is evenly distributed on respectively in the bonding pad of conductive backings (3) and cell back light face.
CN 201120135578 2011-04-30 2011-04-30 Solar cell assembly Expired - Lifetime CN202004028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120135578 CN202004028U (en) 2011-04-30 2011-04-30 Solar cell assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120135578 CN202004028U (en) 2011-04-30 2011-04-30 Solar cell assembly

Publications (1)

Publication Number Publication Date
CN202004028U true CN202004028U (en) 2011-10-05

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CN 201120135578 Expired - Lifetime CN202004028U (en) 2011-04-30 2011-04-30 Solar cell assembly

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CN (1) CN202004028U (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102522451A (en) * 2011-12-08 2012-06-27 常州天合光能有限公司 Low-resistance high-power connection method
CN102522460A (en) * 2011-12-31 2012-06-27 巨力新能源股份有限公司 Packaging method of silicon-based solar cells of photovoltaic module
WO2012122944A1 (en) * 2011-03-16 2012-09-20 常州天合光能有限公司 Solar battery assembly and preparation method thereof
CN102709365A (en) * 2012-06-12 2012-10-03 苏州阿特斯阳光电力科技有限公司 Solar module and preparation method thereof
CN104505414A (en) * 2014-12-16 2015-04-08 新奥光伏能源有限公司 Solar cell assembly
WO2016065735A1 (en) * 2014-10-28 2016-05-06 云飞 Preparation process for photovoltaic cell
CN105845754A (en) * 2016-04-14 2016-08-10 泰州中来光电科技有限公司 Solar energy cell module, preparing method, assembly and system for the cell module
CN106449777A (en) * 2016-11-04 2017-02-22 东莞市联洲知识产权运营管理有限公司 Solar cell module with high photoelectric conversion efficiency
CN106803521A (en) * 2015-11-25 2017-06-06 中电电气(上海)太阳能科技有限公司 A kind of low cost high powered solar cell module
CN107393995A (en) * 2017-08-31 2017-11-24 常州天合光能有限公司 A kind of photovoltaic interconnecting strip and photovoltaic cell component

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012122944A1 (en) * 2011-03-16 2012-09-20 常州天合光能有限公司 Solar battery assembly and preparation method thereof
CN102522451A (en) * 2011-12-08 2012-06-27 常州天合光能有限公司 Low-resistance high-power connection method
CN102522460A (en) * 2011-12-31 2012-06-27 巨力新能源股份有限公司 Packaging method of silicon-based solar cells of photovoltaic module
CN102709365A (en) * 2012-06-12 2012-10-03 苏州阿特斯阳光电力科技有限公司 Solar module and preparation method thereof
WO2016065735A1 (en) * 2014-10-28 2016-05-06 云飞 Preparation process for photovoltaic cell
US10388811B2 (en) 2014-10-28 2019-08-20 Yutao WU Process for preparing a photovoltaic cell
CN104505414A (en) * 2014-12-16 2015-04-08 新奥光伏能源有限公司 Solar cell assembly
CN106803521A (en) * 2015-11-25 2017-06-06 中电电气(上海)太阳能科技有限公司 A kind of low cost high powered solar cell module
CN105845754A (en) * 2016-04-14 2016-08-10 泰州中来光电科技有限公司 Solar energy cell module, preparing method, assembly and system for the cell module
WO2017177726A1 (en) * 2016-04-14 2017-10-19 泰州中来光电科技有限公司 Solar cell module and method for manufacturing same, assembly, and system
CN106449777A (en) * 2016-11-04 2017-02-22 东莞市联洲知识产权运营管理有限公司 Solar cell module with high photoelectric conversion efficiency
CN107393995A (en) * 2017-08-31 2017-11-24 常州天合光能有限公司 A kind of photovoltaic interconnecting strip and photovoltaic cell component

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

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

Patentee after: TRINA SOLAR Co.,Ltd.

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

Patentee before: trina solar Ltd.

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

Patentee after: trina solar Ltd.

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

Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20111005

CX01 Expiry of patent term