CN204497250U - Preventing hot spot photovoltaic module - Google Patents
Preventing hot spot photovoltaic module Download PDFInfo
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- CN204497250U CN204497250U CN201520164581.2U CN201520164581U CN204497250U CN 204497250 U CN204497250 U CN 204497250U CN 201520164581 U CN201520164581 U CN 201520164581U CN 204497250 U CN204497250 U CN 204497250U
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- bus
- cell piece
- hot spot
- afterbody
- head
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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
- 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
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Abstract
The utility model discloses a kind of preventing hot spot photovoltaic module, comprise some cell pieces, some cell pieces form battery strings by tin-coated copper strip series connection, and comprise some Battery pack strings, the both positive and negative polarity of each cell piece is connected to form battery strings successively; The two ends being positioned at battery strings are respectively arranged with head bus and afterbody bus, and head bus and afterbody bus are weldingly connected with the head and the tail of tin-coated copper strip respectively; At the middle position welding positive pole leading-out terminal of head bus, at the middle position welding negative pole leading-out terminal of afterbody bus; Be positioned at the cell piece of same row, it is bonded together by conductive tape between any two, forms netted parallel-connection structure.Contrast traditional cascaded structure assembly, cell piece is connected in parallel by the utility model, forms netted path, when certain block cell piece damage, cover or other reasons formed hot spot time, electric current flows from bypass in parallel, effectively avoids hot spot to assembly property and the impact in life-span; And also can there is good performance when low irradiance, shade cover.
Description
Technical field
The utility model relates to a kind of preventing hot spot photovoltaic module, belongs to crystal silicon solar assembly field.
Background technology
The internal circuit of current Crystalline Silicon PV Module mainly takes multi-disc cell piece to be connected in series, and as shown in Figure 1, cell piece (3) is connected in series by tin-coated copper strip (7).Wherein every some cell pieces diode in parallel is used for hot spot defencive function.The shortcoming of this traditional structural design is: when there is assembly hot spot when the problem such as have damage because of certain block cell piece, cover, and diode can conducting, shielding this string assembly in parallel, causes the power output of assembly to decline; After long-time generation hot spot effect, diode is in febrile state for a long time, can affect assembly life-span.
Utility model content
In order to overcome above-mentioned defect, the utility model provides that a kind of preventing hot spot, anti-fragment, power stage are stablized, the preventing hot spot photovoltaic module of high life.
The utility model in order to the technical scheme solving its technical problem and adopt is: a kind of preventing hot spot photovoltaic module, comprise some cell pieces, described some cell pieces form battery strings by tin-coated copper strip series connection, comprise some Battery pack strings, the both positive and negative polarity of each cell piece described is connected to form battery strings successively; The two ends being positioned at described battery strings are respectively arranged with head bus and afterbody bus, and described head bus and afterbody bus are weldingly connected with the head and the tail of tin-coated copper strip respectively; At the middle position welding positive pole leading-out terminal of described head bus, at the middle position welding negative pole leading-out terminal of described afterbody bus; Be positioned at the cell piece of same row, it is bonded together by conductive tape between any two, forms netted parallel-connection structure.
As further improvement of the utility model, the cell piece back side transverse bonding conductive tape between any two of described same row, and have electrical connection between the cell piece of the same electromotive force position of different lines.
As further improvement of the utility model, the cell piece quantity of described every Battery pack string, spacing, cathode and anode directions are all identical, and align end to end.
The beneficial effects of the utility model are: contrast traditional cascaded structure assembly, cell piece is connected in parallel by the utility model, form netted path, when certain block cell piece damage, cover or other reasons formed hot spot time, electric current flows from bypass in parallel, effectively avoids hot spot to assembly property and the impact in life-span; And also can there is good performance when low irradiance, shade cover.
Accompanying drawing explanation
Fig. 1 is the welding of battery film schematic diagram of prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is equivalent circuit diagram of the present utility model;
Wherein: 1, positive pole leading-out terminal, 2, conductive tape, 3, cell piece, 4, negative pole leading-out terminal, 5, head bus, 6, afterbody bus, 7, tin-coated copper strip.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figures 2 and 3, a kind of preventing hot spot photovoltaic module, comprises some cell pieces 3, and described some cell pieces 3 are connected by tin-coated copper strip 7 and formed battery strings, and comprise some Battery pack strings, the both positive and negative polarity of each cell piece 3 described is connected to form battery strings successively; The two ends being positioned at described battery strings are respectively arranged with head bus 5 and afterbody bus 6, and described head bus 5 and afterbody bus 6 are weldingly connected with the head and the tail of tin-coated copper strip 7 respectively; At the middle position welding positive pole leading-out terminal 1 of described head bus 5, at the middle position welding negative pole leading-out terminal 4 of described afterbody bus 6; Be positioned at the cell piece 3 of same row, it is bonded together by conductive tape 2 between any two, forms netted parallel-connection structure.
Cell piece 3 back side between any two of described same row, namely carries on the back electric field, transverse bonding conductive tape, and has electrical connection between the cell piece of the same electromotive force position of different lines.
Cell piece 3 quantity of described every Battery pack string, spacing, cathode and anode directions are all identical, and align end to end.
Contrast traditional cascaded structure assembly, cell piece is connected in parallel by the utility model, forms netted path, when certain block cell piece damage, cover or other reasons formed hot spot time, electric current flows from bypass in parallel, effectively avoids hot spot to assembly property and the impact in life-span; And also can there is good performance when low irradiance, shade cover.
Claims (3)
1. a preventing hot spot photovoltaic module, comprise some cell pieces (3), described some cell pieces (3) form battery strings by tin-coated copper strip (7) series connection, it is characterized in that: comprise some Battery pack strings, the both positive and negative polarity of described each cell piece (3) is connected to form battery strings successively; The two ends being positioned at described battery strings are respectively arranged with head bus (5) and afterbody bus (6), and described head bus (5) and afterbody bus (6) are weldingly connected with the head and the tail of tin-coated copper strip (7) respectively; At middle position welding positive pole leading-out terminal (1) of described head bus (5), at middle position welding negative pole leading-out terminal (4) of described afterbody bus (6); Be positioned at the cell piece (3) of same row, it is bonded together by conductive tape (2) between any two, forms netted parallel-connection structure.
2. preventing hot spot photovoltaic module according to claim 1, it is characterized in that: cell piece (3) back side transverse bonding conductive tape (2) between any two of described same row, and have electrical connection between the cell piece (3) of the same electromotive force position of different lines.
3. preventing hot spot photovoltaic module according to claim 1 and 2, is characterized in that: cell piece (3) quantity of described every Battery pack string, spacing, cathode and anode directions are all identical, and align end to end.
Priority Applications (1)
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CN201520164581.2U CN204497250U (en) | 2015-03-23 | 2015-03-23 | Preventing hot spot photovoltaic module |
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CN201520164581.2U CN204497250U (en) | 2015-03-23 | 2015-03-23 | Preventing hot spot photovoltaic module |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108735831A (en) * | 2018-07-27 | 2018-11-02 | 英利能源(中国)有限公司 | Solar cell, solar cell string and imbrication photovoltaic module |
CN108831945A (en) * | 2017-05-03 | 2018-11-16 | 江苏赛拉弗光伏系统有限公司 | A kind of no hot spot imbrication photovoltaic module structure |
CN109004050A (en) * | 2017-06-07 | 2018-12-14 | 江苏赛拉弗光伏系统有限公司 | A kind of no hot spot imbrication photovoltaic module |
CN114093982A (en) * | 2021-10-20 | 2022-02-25 | 永臻科技股份有限公司 | Preparation method of full-parallel photovoltaic shutter and photovoltaic shutter |
-
2015
- 2015-03-23 CN CN201520164581.2U patent/CN204497250U/en active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108831945A (en) * | 2017-05-03 | 2018-11-16 | 江苏赛拉弗光伏系统有限公司 | A kind of no hot spot imbrication photovoltaic module structure |
CN109004050A (en) * | 2017-06-07 | 2018-12-14 | 江苏赛拉弗光伏系统有限公司 | A kind of no hot spot imbrication photovoltaic module |
CN108735831A (en) * | 2018-07-27 | 2018-11-02 | 英利能源(中国)有限公司 | Solar cell, solar cell string and imbrication photovoltaic module |
CN114093982A (en) * | 2021-10-20 | 2022-02-25 | 永臻科技股份有限公司 | Preparation method of full-parallel photovoltaic shutter and photovoltaic shutter |
WO2023065613A1 (en) * | 2021-10-20 | 2023-04-27 | 永臻科技股份有限公司 | Preparation method for fully-parallel photovoltaic shutter and photovoltaic shutter thereof |
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C14 | Grant of patent or utility model | ||
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CP01 | Change in the name or title of a patent holder |
Address after: 214400 No. 1011 Chengcheng Road, Shengang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: In building materials jetion science and Technology Co Ltd Address before: 214400 No. 1011 Chengcheng Road, Shengang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: China National Building Materials Group Corporation Jetion Solar (China) Co., Ltd. |