CN107681008B - Photovoltaic module is with converging area - Google Patents
Photovoltaic module is with converging area Download PDFInfo
- Publication number
- CN107681008B CN107681008B CN201710856242.4A CN201710856242A CN107681008B CN 107681008 B CN107681008 B CN 107681008B CN 201710856242 A CN201710856242 A CN 201710856242A CN 107681008 B CN107681008 B CN 107681008B
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- CN
- China
- Prior art keywords
- photovoltaic module
- bus bar
- linear structure
- converging
- punching
- 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.)
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Links
- 230000007306 turnover Effects 0.000 claims abstract description 20
- 238000005520 cutting process Methods 0.000 claims description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 238000004080 punching Methods 0.000 abstract description 21
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 15
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
-
- 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
Abstract
The invention provides a photovoltaic module bus bar, comprising: the utility model discloses a folding device, including converging portion, folding portion, be equipped with the linear structure that is convenient for turn over folding portion between converging portion, the folding portion, linear structure is parallel with converging belt limit portion. Compared with the prior art, the invention adopts a linear structure parallel to the bus-bar, is formed by direct punching or semi-punching, has simple processing, does not generate punching waste, saves raw materials, has smaller internal stress at the folded part after punching, and is not easy to break.
Description
Technical Field
The invention relates to the field of welding strips, in particular to a bus strip for a photovoltaic module.
Background
The current collecting belt is used as a current outgoing line in the solar module, current collected by the solar cell is led into the junction box, an important function is played, and a few of current cell modules adopt turnover welding belts. In patent document with publication number CN205488166U, as shown in fig. 1, a bus bar 1 is welded at two ends of a battery string group 2, and a part not connected with the battery string is folded to the back of the battery string.
In patent document with publication number CN206163503U, a foldable welding strip with a hollowed-out portion is disclosed, so that the welding strip is easier to fold. However, the hollowed-out parts increase the width of the welding strip manufacturing raw materials, a large amount of waste materials are generated during punching, and the production cost is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a photovoltaic module bus bar.
In order to achieve the above purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: a photovoltaic module bus bar comprising: the utility model discloses a folding device, including converging portion, folding portion, be equipped with the linear structure that is convenient for turn over folding portion between converging portion, the folding portion, linear structure is parallel with converging belt limit portion.
Compared with the prior art, the invention adopts a linear structure parallel to the bus-bar, is formed by direct punching or semi-punching, has simple processing, does not generate punching waste, saves raw materials, has smaller internal stress at the folded part after punching, and is not easy to break.
Further, the linear structure is formed by arranging the cutting lines at intervals.
Further, the ratio of the sum of the lengths of the cutting lines to the total length of the bus bar is 1/2-2/3.
By adopting the preferable scheme, the thin blade is adopted for direct punching and forming, and the proper length of the cutting line can effectively reduce the internal stress of the turnover, and simultaneously ensure the connection strength of the converging part and the turnover part.
Further, one or more linear structures are arranged on the bus belt in parallel.
Further, when a plurality of linear structures are arranged on the bus belt in parallel, the cutting lines on the adjacent linear structures are arranged in a staggered state.
By adopting the preferable scheme, a plurality of linear structures are punched, so that the method can meet the model requirements of more battery pieces, improves the universality and reduces the manufacturing cost; the staggered arrangement of the cutting lines improves the overall strength of the bus tie.
Further, the linear structure is formed by arranging the cutting lines and the half-punching lines one by one.
By adopting the preferable scheme, the turnover internal stress can be eliminated to the greatest extent, the battery piece is not easy to damage, and the overall durability of the photovoltaic module is improved.
Further, the linear structure is formed by arranging half punching lines at intervals.
By adopting the preferable scheme, the connection strength of the welding strip converging part and the turnover part can be ensured.
Further, the linear structure is a whole half-cut line.
By adopting the preferable scheme, the punching is simpler and more convenient, and the processing cost is reduced.
Further, the cross section of the linear structure is a continuous combination of a plurality of parabolic grooves, and the opening of each parabolic groove is matched with the thickness of the photovoltaic module cell.
By adopting the preferable scheme, the welding fixture can adapt to errors of various types of battery pieces or welding jigs, the internal stress at the turnover position is greatly eliminated by the continuous parabolic grooves, one parabolic groove is attached to the edge of the battery piece, the adjacent parabolic grooves are pressed and deformed, the edge of the groove is pressed and tightly pressed with the battery piece, the welding firmness of the converging part and the battery piece is improved, and the current guiding-out capability is improved.
Further, the surface of the confluence part is coated with a conductive silver paste layer.
By adopting the preferable scheme, the conductive silver paste layer can effectively reduce the welding temperature between the bus-tie and the battery piece, prevent the battery piece from being broken by high temperature and improve the yield of the photovoltaic module.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a structure in which a bus bar is connected to a battery string;
FIG. 2a is a schematic diagram of an embodiment of the present invention;
FIG. 2b is a cross-sectional view taken along line A-A of FIG. 2 a;
FIG. 2c is a cross-sectional view taken along B-B in FIG. 2 a;
FIG. 3a is a schematic diagram of another embodiment of the present invention;
FIG. 3b is a cross-sectional view taken along line C-C of FIG. 3 a;
FIG. 3c is a cross-sectional view taken along D-D in FIG. 3 a;
FIG. 4a is a schematic diagram of another embodiment of the present invention;
FIG. 4b is a cross-sectional view taken along E-E in FIG. 4 a;
FIG. 4c is a cross-sectional view taken along F-F in FIG. 4 a;
FIG. 5a is a schematic diagram of another embodiment of the present invention;
FIG. 5b is a cross-sectional view taken along G-G in FIG. 5 a;
FIG. 5c is a cross-sectional view taken in the direction H-H of FIG. 5 a;
FIG. 6a is a schematic diagram of another embodiment of the present invention;
FIG. 6b is a cross-sectional view I-I of FIG. 6 a;
FIG. 7a is a schematic diagram of another embodiment of the present invention;
FIG. 7b is a J-J cross-sectional view of FIG. 7 a;
FIG. 7c is a schematic view of a bus bar and battery tab combination;
fig. 8 is a schematic structural view of another embodiment of the present invention.
Names of the corresponding parts indicated by numerals and letters in the drawings:
1-a bus bar; 11-a confluence part; 111-a conductive silver paste layer; 12-a turnover part; 13-linear structure; 131-cutting off the wire; 132-half-punching line; 133-parabolic grooves; 2-battery string; 21-cell.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 2a, one embodiment of the present invention is: a photovoltaic module bus bar comprising: the converging part 11 and the turnover part 12, a linear structure 13 which is convenient for turnover the turnover part 12 is arranged between the converging part 11 and the turnover part 12, and the linear structure 13 is parallel to the edge of the converging belt.
The beneficial effects of adopting above-mentioned technical scheme are: the linear structure 13 parallel to the bus-bar is adopted, and the battery piece is formed by direct punching or semi-punching, so that the processing is simple, no punching waste is generated, raw materials are saved, the internal stress at the folded part after punching is smaller, and the battery piece is not easy to break.
As shown in fig. 2a, 2b, and 2c, in other embodiments of the present invention, the linear structure 13 is formed by intermittently arranging the cutting lines 131 for the purpose of achieving both easy folding and connection strength; the sum of the lengths of the cut lines 131 is 1/2 to 2/3 of the total length of the bus bar. The beneficial effects of adopting above-mentioned technical scheme are: the thin blade is adopted for direct punching and forming, and the appropriate length of the cutting line can effectively reduce the internal stress of the turnover and ensure the connection strength of the confluence part and the turnover part.
In other embodiments of the present invention, as shown in fig. 3a, 3b, and 3c, for the purpose of improving adaptability, a plurality of linear structures 13 are disposed in parallel on the bus bar; the cut lines 131 on adjacent linear structures 13 are arranged in an interleaved state. The beneficial effects of adopting above-mentioned technical scheme are: the plurality of linear structures 13 are punched, so that the model requirements of more battery pieces can be met, the universality is improved, and the manufacturing cost is reduced; the staggered arrangement of the cut lines 131 improves the overall strength of the bus tie.
As shown in fig. 4a, 4b, and 4c, in other embodiments of the present invention, the linear structure 13 is formed by arranging the cutting lines 131 and the half-punching lines 132 at intervals for easy folding. The beneficial effects of adopting above-mentioned technical scheme are: the turnover internal stress can be eliminated to the greatest extent, the battery piece is not easy to damage, and the overall durability of the photovoltaic module is improved.
As shown in fig. 5a, 5b, and 5c, in other embodiments of the present invention, the linear structure 13 is formed by intermittently arranging half-cut lines 132 for the purpose of securing the connection strength. The beneficial effects of adopting above-mentioned technical scheme are: the connection strength of the welding strip converging part and the turnover part can be ensured.
In other embodiments of the present invention, as shown in fig. 6a and 6b, the linear structure 13 is a full half die cut line 132 for ease of fabrication. The beneficial effects of adopting above-mentioned technical scheme are: the punching is simpler and more convenient, and the processing cost is reduced.
In other embodiments of the invention, as shown in fig. 7a, 7b, 7c, the cross section of the linear structure 13 is a continuous combination of a plurality of parabolic grooves 133, the opening of a single parabolic groove 133 matching the thickness of the photovoltaic module panel 21, for the purpose of optimizing the turnover structure. The beneficial effects of adopting above-mentioned technical scheme are: the welding jig can adapt to errors of various types of battery pieces or welding jigs, the internal stress at the turnover positions is greatly eliminated by the continuous parabolic grooves, one parabolic groove 133 is attached to the edge of the battery piece 21, the adjacent parabolic grooves are pressed and deformed, the pressing of the edge of the groove and the battery piece is tighter, the welding firmness of the converging part and the battery piece is improved, and the current guiding-out capacity is improved.
As shown in fig. 8, in other embodiments of the present invention, the surface of the bus portion 11 is coated with a conductive silver paste layer 111 for the purpose of improving soldering performance. The beneficial effects of adopting above-mentioned technical scheme are: the adoption of the conductive silver paste layer 111 can effectively reduce the welding temperature between the bus-tie and the battery piece, prevent the battery piece from being broken by high temperature and improve the yield of the photovoltaic module.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, but not limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. A photovoltaic module is with converging area, characterized in that includes: the utility model discloses a folding device, including converging portion, folding portion, be equipped with the linear structure that is convenient for turn over folding portion between converging portion, the folding portion in order to be used for reducing the internal stress of turning over, linear structure is parallel with converging belt limit portion to
The linear structure is formed by arranging the cutting lines at intervals, and the sum of the lengths of the cutting lines accounts for 1/2-2/3 of the total length of the bus bar; wherein,
and a plurality of linear structures are arranged on the bus belt in parallel, and cutting lines on adjacent linear structures are distributed in a staggered state.
2. The photovoltaic module bus bar of claim 1 wherein the bus bar has one of the linear structures disposed thereon.
3. The photovoltaic module bus bar according to claim 1, wherein the linear structure is formed by arranging the cut lines and the half-cut lines at intervals.
4. The photovoltaic module bus bar of claim 1 wherein the linear structure is a half die cut line arrangement.
5. The photovoltaic module bus bar of claim 1 wherein the linear structure is a full half-cut line.
6. The photovoltaic module bus bar of claim 1 wherein the cross section of the linear structure is a continuous combination of a plurality of parabolic grooves, the opening of each parabolic groove matching the thickness of a photovoltaic module cell.
7. The photovoltaic module bus bar according to any one of claims 1 to 6, wherein the bus bar surface is coated with a conductive silver paste layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856242.4A CN107681008B (en) | 2017-09-20 | 2017-09-20 | Photovoltaic module is with converging area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856242.4A CN107681008B (en) | 2017-09-20 | 2017-09-20 | Photovoltaic module is with converging area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107681008A CN107681008A (en) | 2018-02-09 |
| CN107681008B true CN107681008B (en) | 2024-01-30 |
Family
ID=61136067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710856242.4A Active CN107681008B (en) | 2017-09-20 | 2017-09-20 | Photovoltaic module is with converging area |
Country Status (1)
| Country | Link |
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| CN (1) | CN107681008B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234120B (en) * | 2020-09-04 | 2022-07-01 | 英利能源（中国）有限公司 | Photovoltaic module laying method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1868250A2 (en) * | 2006-06-13 | 2007-12-19 | Miasole | Photovoltaic module with integrated current collection and interconnection |
| JP2010073377A (en) * | 2008-09-16 | 2010-04-02 | Sumitomo Wiring Syst Ltd | Fusible link unit, and electrical junction box storing the same |
| CN103985775A (en) * | 2014-05-29 | 2014-08-13 | 蒙特集团（香港）有限公司 | Efficient photovoltaic isomerism solder strip |
| KR101572072B1 (en) * | 2015-05-19 | 2015-11-26 | 한윤석 | Complex Joint Tape for Surface Mount Device Carrier Tape |
| CN205452317U (en) * | 2016-03-30 | 2016-08-10 | 富科-思邦太阳能技术（太仓）有限公司 | L type of bending photovoltaic solder strip area of converging |
| CN106206762A (en) * | 2014-10-31 | 2016-12-07 | 比亚迪股份有限公司 | Solaode chip arrays, solar module and preparation method thereof |
| CN106449835A (en) * | 2016-10-31 | 2017-02-22 | 苏州宇邦新型材料股份有限公司 | Welding strip used for solar cell piece and processing technology thereof |
| CN206322711U (en) * | 2016-11-17 | 2017-07-11 | 江苏赛拉弗光伏系统有限公司 | A kind of welding |
| CN206452364U (en) * | 2016-12-21 | 2017-08-29 | 苏州宇邦新型材料股份有限公司 | A kind of three-dimensional bending convergent belt, single glass photovoltaic module and double glass photovoltaic modulies |
| CN207338390U (en) * | 2017-09-20 | 2018-05-08 | 苏州宇邦新型材料股份有限公司 | A kind of photovoltaic module convergent belt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009043842A (en) * | 2007-08-07 | 2009-02-26 | Sharp Corp | Solar battery module |
-
2017
- 2017-09-20 CN CN201710856242.4A patent/CN107681008B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1868250A2 (en) * | 2006-06-13 | 2007-12-19 | Miasole | Photovoltaic module with integrated current collection and interconnection |
| JP2010073377A (en) * | 2008-09-16 | 2010-04-02 | Sumitomo Wiring Syst Ltd | Fusible link unit, and electrical junction box storing the same |
| CN103985775A (en) * | 2014-05-29 | 2014-08-13 | 蒙特集团（香港）有限公司 | Efficient photovoltaic isomerism solder strip |
| CN106206762A (en) * | 2014-10-31 | 2016-12-07 | 比亚迪股份有限公司 | Solaode chip arrays, solar module and preparation method thereof |
| KR101572072B1 (en) * | 2015-05-19 | 2015-11-26 | 한윤석 | Complex Joint Tape for Surface Mount Device Carrier Tape |
| CN205452317U (en) * | 2016-03-30 | 2016-08-10 | 富科-思邦太阳能技术（太仓）有限公司 | L type of bending photovoltaic solder strip area of converging |
| CN106449835A (en) * | 2016-10-31 | 2017-02-22 | 苏州宇邦新型材料股份有限公司 | Welding strip used for solar cell piece and processing technology thereof |
| CN206322711U (en) * | 2016-11-17 | 2017-07-11 | 江苏赛拉弗光伏系统有限公司 | A kind of welding |
| CN206452364U (en) * | 2016-12-21 | 2017-08-29 | 苏州宇邦新型材料股份有限公司 | A kind of three-dimensional bending convergent belt, single glass photovoltaic module and double glass photovoltaic modulies |
| CN207338390U (en) * | 2017-09-20 | 2018-05-08 | 苏州宇邦新型材料股份有限公司 | A kind of photovoltaic module convergent belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107681008A (en) | 2018-02-09 |
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Effective date of registration: 20181122 Address after: 215124 No. 22 Youxiang Road, Yuexi Street, Wuzhong Economic Development Zone, Suzhou, Jiangsu Province Applicant after: SUZHOU YOURBEST NEW-TYPE MATERLALS Co.,Ltd. Address before: 215124 No. 22 Youxiang Road, Yuexi Street, Wuzhong Economic Development Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU YOURBEST NEW-TYPE MATERLALS Co.,Ltd. Applicant before: JIANGSU YOURBEST SOLAR MATERIALS CO.,LTD. |
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