CN110649126B - Preparation method of battery string - Google Patents
Preparation method of battery string Download PDFInfo
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- CN110649126B CN110649126B CN201910917034.XA CN201910917034A CN110649126B CN 110649126 B CN110649126 B CN 110649126B CN 201910917034 A CN201910917034 A CN 201910917034A CN 110649126 B CN110649126 B CN 110649126B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 25
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 241000252254 Catostomidae Species 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- 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
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
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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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- 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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- Condensed Matter Physics & Semiconductors (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a preparation method of a battery string, which comprises the following steps: 1) arranging the battery pieces; 2) the batteries are in lap joint; 3) and welding the battery strings. The invention can greatly improve the cutting efficiency of the connecting piece, ensure the cutting precision of the connecting piece, improve the lapping efficiency of the battery string, improve the welding efficiency of the battery string, further improve the preparation efficiency of the battery string and improve the productivity of the battery string and the solar battery component.
Description
Technical Field
The application belongs to the field of solar photovoltaic cells, and particularly relates to a preparation method of a battery string.
Background
Cell strings are important modules in solar modules. The battery string is formed by serially connecting battery pieces, two adjacent battery pieces in the battery string are serially connected through a small section of a connecting piece, and the small section of the commonly used connecting piece is generally a small section of a welding strip.
At present, the preparation of battery strings is generally to intercept and weld the bands section by section and lap the battery pieces one by section, lap the welding band on the former battery piece, then cut the welding band, leave the welding band segment on the battery piece to stretch out to the outer side of the battery piece, lap the latter battery piece on the welding band segment, and repeat the process until the whole string of battery strings is lapped. Therefore, each time a cell is overlapped, the welding strip needs to be cut once, so that the welding strip needs to be cut for many times when a cell string is overlapped, and the preparation efficiency of the cell string is low.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a preparation method of a battery string, which comprises the following steps:
1) arranging the battery pieces:
a plurality of first carrying platforms are sequentially arranged along the left-right direction, and a battery piece with an upward back surface is horizontally placed on each first carrying platform; all the battery pieces are positioned at the same height; each cell slice is respectively provided with a front edge electrode and a back electrode; the front side edge electrode is positioned at the left side edge or the right side edge of the front side of the battery piece where the front side edge electrode is positioned; the left side line and the right side line of the same cell slice take one side line close to the front side edge electrode as a first side line and one side line far away from the front side edge electrode as a second side line; the first sidelines of the battery pieces on the first carrying platforms are same in the left-right direction; among all the first sidelines and the second sidelines, the first sideline which is positioned at the outermost side in the left-right direction is taken as the outermost first sideline, and the second sideline which is positioned at the outermost side in the left-right direction is taken as the outermost second sideline; the width of the front side edge electrode in the left-right direction is taken as the width of the front side edge electrode, and the widths of the front side edge electrodes of the battery pieces are the same; the distance between two adjacent battery pieces is equal to the width of the front side edge electrode;
covering the strip-shaped or strip-shaped connecting piece on each battery piece along the left-right direction, wherein the connecting piece spans the second side line of each battery piece, the connecting piece is attached to the back electrode of each battery piece, and the connecting piece does not span the first side line at the outermost side;
welding the connecting piece on each cell piece to enable the connecting piece to be welded with the back electrode of each cell piece;
cutting the connecting piece along each first edge line except the outermost first edge line, and cutting the connecting piece at the outer side of the outermost second edge line and at a distance from the outermost second edge line by the width of one front edge electrode, so that a plurality of independent connecting piece small sections are cut off by the connecting piece;
obtaining: the back electrode of each cell is welded with an independent connecting piece small section, the connecting piece small section is arranged along the left-right direction, the connecting piece small section does not extend to the outer side of the first sideline of the cell where the connecting piece small section is located, the connecting piece small section extends to the outer side of the second sideline of the cell where the connecting piece small section is located, and the length of the connecting piece small section exceeding the second sideline of the cell where the connecting piece small section is located is equal to the width of the front edge; taking the part of the connecting piece small section, which exceeds the second sideline of the battery piece where the connecting piece small section is positioned, as an external section of the connecting piece small section;
2) and (3) overlapping the battery strings:
synchronously sucking up each battery piece, and then respectively rotating each battery piece for a certain angle, wherein the rotating direction of each battery piece is that the first sideline is upward and the second sideline is downward, so that each battery piece is inclined at a small angle;
reducing the distance between two adjacent battery pieces to ensure that the front edge electrode is positioned right above the small external section of the adjacent connecting piece;
synchronously placing each battery piece on a second carrying platform, and pressing the front edge electrode on the small section external section of the connecting piece positioned right below the second carrying platform to complete the lap joint of the single battery string;
3) welding the battery string:
and heating and welding the battery strings on the second carrying platform to weld the front edge electrode and the small external section of the connecting piece pressed under the front edge electrode together to complete the welding of the single battery string.
Preferably, in step 1), the distance between two adjacent battery pieces is adjusted by adjusting the distance between the first carrying platform, so that the distance between two adjacent battery pieces is equal to the width of the front-side edge electrode.
Preferably, in step 1), the connecting members on the respective battery pieces are welded synchronously, so that the connecting members are welded with the back electrodes of the respective battery pieces.
Preferably, in step 1), the connector is cut using a laser.
Preferably, in the step 2), the battery pieces are synchronously sucked up through a sucker manipulator, the sucker manipulator is provided with a plurality of suckers, the suckers are sequentially arranged along the left and right direction, and the suckers are located at the same height; the sucker manipulator is provided with a sucker distance adjusting mechanism for adjusting the distance between two adjacent suckers, and each sucker is also provided with a turnover mechanism; each sucker sucks up one battery piece, the battery pieces are rotated by a certain angle through the turnover mechanism, and the distance between every two adjacent battery pieces is reduced through the sucker distance adjusting mechanism.
Preferably, in step 3), the battery string on the second carrying platform is heated and welded through a plurality of heating lamp tubes, heating regions of the plurality of heating lamp tubes cover joints of the front sides of the batteries, and the joints of the front sides of the batteries are joints of front side edge electrodes and small external sections of the connecting pieces.
The invention has the advantages and beneficial effects that:
1) the connecting pieces are firstly lapped on each battery piece, then the connecting pieces are cut, and a plurality of independent connecting piece small sections can be cut at one time, namely, the connecting pieces only need one cutting step in the process of preparing a single battery string, the connecting pieces do not need to be cut for a plurality of times, and compared with the prior art that welding tapes need to be cut for a plurality of times in the process of preparing a single battery string, the cutting efficiency of the connecting pieces can be greatly improved.
2) According to the invention, before the connecting piece is cut, the connecting piece on each battery piece is welded, so that the connecting piece is welded with the back electrode of each battery piece, and therefore, when the connecting piece is cut, the connecting piece cannot generate relative displacement with the battery piece, and the cutting precision of the connecting piece can be ensured.
3) In the invention, the small section of the connecting piece of each cell exceeds the cell where the connecting piece is located, and in the subsequent cell string overlapping step, the external section of the small section of the connecting piece (namely the part of the small section of the connecting piece exceeding the cell where the connecting piece is located) can be overlapped with the front side edge electrode of the adjacent cell; and the length of the external section (namely the length of the small section of the connecting piece exceeding the battery piece where the small section of the connecting piece is located) is equal to the width of the front side edge electrode, so that the length of the external section is matched with the width of the front side edge electrode of the adjacent battery piece, and the lap joint of the battery strings is facilitated.
4) According to the invention, each battery piece is rotated and then folded, so that a plurality of battery pieces can be synchronously lapped, and the lapping efficiency of the battery string can be improved.
5) The invention can synchronously weld the back connection parts of each battery (the back connection parts of the batteries are the connection parts of the back electrodes and the connecting pieces/the connecting piece segments), thereby improving the back welding efficiency of the batteries;
the invention can synchronously heat and weld the joints of the front sides of the batteries (the joints of the front sides of the batteries are the joints of the front side edge electrodes and the small external sections of the connecting pieces), thereby improving the welding efficiency of the front sides of the batteries;
therefore, the welding efficiency of the battery string can be improved.
6) By combining the above points, it is obvious that the invention can improve the preparation efficiency of the cell string, improve the productivity of the cell string and further improve the productivity of the solar cell module.
Drawings
Fig. 1 is a schematic view of a battery plate laid flat on each first carrying platform;
fig. 2 is a schematic view of the connecting member covering each of the battery cells in the left-right direction;
FIG. 3 is a schematic view of the connector after cutting is complete;
FIG. 4 is a schematic view of each cell slice rotating a certain angle;
FIG. 5 is a schematic view of reducing the pitch of two adjacent cells;
fig. 6 is a schematic diagram of the completion of cell string bridging.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1 to 6, the present invention provides a method for manufacturing a battery string, comprising the steps of:
1) arranging the battery pieces 1:
a plurality of first carrying platforms 3 are sequentially arranged along the left-right direction, and a battery piece 1 with an upward back surface is horizontally placed on each first carrying platform 3; the battery pieces 1 are positioned at the same height; each cell 1 is provided with a front edge electrode 11 and a back electrode 12 respectively; the front side edge electrode 11 is located at the front right side edge (which may also be the left side edge, and the right side edge is taken as an example in each figure) of the cell sheet 1 where the front side edge electrode is located; the left side line and the right side line of the same battery piece 1 take one side line close to the front side edge electrode 11 as a first side line 13 and one side line far away from the front side edge electrode 11 as a second side line 14; the first sidelines 13 of the battery pieces 1 on each first carrying platform 3 are same in the left-right direction; of all the first borderlines 13 and the second borderlines 14, the first borderline that is outermost in the left-right direction (i.e., the rightmost side in fig. 1) is taken as the outermost first borderline 15, and the second borderline that is outermost in the left-right direction (i.e., the leftmost side in fig. 1) is taken as the outermost second borderline 16; the width of the front side edge electrode 11 in the left-right direction is taken as the width of the front side edge electrode, and the widths of the front side edge electrodes of the battery pieces 1 are the same; the distance between two adjacent battery pieces 1 is adjusted by adjusting the distance between the first carrying platform 3, so that the distance between two adjacent battery pieces 1 is equal to the width of the front-side edge electrode, as shown in fig. 1;
covering a strip-shaped or strip-shaped connecting piece 20 on each cell 1 along the left-right direction, wherein the connecting piece 20 spans the second sidelines 14 (including the outermost second sidelines 16) of each cell 1, the connecting piece 20 is abutted against the back electrode 12 of each cell 1, and the connecting piece 20 does not span the outermost first sidelines 15, as shown in fig. 2;
synchronously welding the connecting piece 20 on each cell 1 to weld the connecting piece 20 and the back electrode 12 of each cell 1 together;
the connector 20 is cut with a laser: cutting the connector 20 along each first edge line 13 except the outermost first edge line 15, and cutting the connector 20 at a position outside the outermost second edge line 16 and at a distance from the outermost second edge line 16 by the width of one front edge electrode, so that the connector 20 cuts off a plurality of independent connector segments 2;
obtaining: the back electrode 12 of each cell 1 is welded with an independent connecting piece segment 2, the connecting piece segments 2 are arranged along the left-right direction, the connecting piece segments 2 do not extend to the outer side of the first side line 13 or 15 of the cell 1 where the connecting piece segments are located, the connecting piece segments 2 extend to the outer side of the second side line 14 or 16 of the cell 1 where the connecting piece segments 2 are located, and the length of the connecting piece segments 2 exceeding the second side line 14 or 16 of the cell 1 where the connecting piece segments are located is equal to the width of the front side edge electrode; the part of the connecting piece segment 2 beyond the second edge 14 or 16 of the cell 1 where the connecting piece segment is located is taken as an external segment 21 of the connecting piece segment 2, as shown in fig. 3;
2) and (3) overlapping the battery strings:
synchronously sucking up each battery piece 1, and then respectively rotating each battery piece 1 by a certain angle, wherein the rotating direction of each battery piece 1 is that the first side line 13 or 15 faces upwards and the second side line 14 or 16 faces downwards, so that each battery piece 1 is inclined by a small angle, and the rotating angles of the battery pieces 1 are the same, as shown in fig. 4;
reducing the distance between two adjacent battery pieces 1 to enable the front edge electrode 11 to be positioned right above the external section 21 of the adjacent connecting piece small section 2, as shown in fig. 5;
synchronously placing each battery piece 1 on a second carrying platform (the second carrying platform is not shown in fig. 6), so that the front edge electrode 11 is pressed on the external section 21 of the connecting piece small section 2 positioned right below the front edge electrode to complete the lapping of the single battery strings, as shown in fig. 6;
3) welding the battery string:
and heating and welding the battery strings on the second carrying platform to weld the front edge electrode 11 and the external section 21 of the connecting piece segment 2 pressed right below the front edge electrode together, so as to complete the welding of the single battery string.
Example 2
On the basis of embodiment 1, the differences are:
in the step 2), the battery pieces are synchronously sucked up through a sucker manipulator, the sucker manipulator is provided with a plurality of suckers, the suckers are sequentially arranged along the left and right direction, and the suckers are positioned at the same height; the sucker manipulator is provided with a sucker distance adjusting mechanism for adjusting the distance between two adjacent suckers, and each sucker is also provided with a turnover mechanism; each sucker sucks up one battery piece, the battery pieces are rotated by a certain angle through the turnover mechanism, and the distance between every two adjacent battery pieces is reduced through the sucker distance adjusting mechanism;
in the step 3), the battery strings on the second carrying platform are heated and welded through a plurality of heating lamp tubes, heating areas of the plurality of heating lamp tubes cover the front connection positions of the batteries, and the front connection positions of the batteries are connection positions of front edge electrodes and small external sections of the connecting pieces.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The preparation method of the battery string is characterized by comprising the following steps:
1) arranging the battery pieces:
a plurality of first carrying platforms are sequentially arranged along the left-right direction, and a battery piece with an upward back surface is horizontally placed on each first carrying platform; all the battery pieces are positioned at the same height; each cell slice is respectively provided with a front edge electrode and a back electrode; the front side edge electrode is positioned at the left side edge or the right side edge of the front side of the battery piece where the front side edge electrode is positioned; the left side line and the right side line of the same cell slice take one side line close to the front side edge electrode as a first side line and one side line far away from the front side edge electrode as a second side line; the first sidelines of the battery pieces on the first carrying platforms are same in the left-right direction; among all the first sidelines and the second sidelines, the first sideline which is positioned at the outermost side in the left-right direction is taken as the outermost first sideline, and the second sideline which is positioned at the outermost side in the left-right direction is taken as the outermost second sideline; the width of the front side edge electrode in the left-right direction is taken as the width of the front side edge electrode, and the widths of the front side edge electrodes of the battery pieces are the same; the distance between two adjacent battery pieces is equal to the width of the front side edge electrode;
covering the strip-shaped or strip-shaped connecting piece on each battery piece along the left-right direction, wherein the connecting piece spans the second side line of each battery piece, the connecting piece is attached to the back electrode of each battery piece, and the connecting piece does not span the first side line at the outermost side;
welding the connecting piece on each cell piece to enable the connecting piece to be welded with the back electrode of each cell piece;
cutting the connecting piece along each first edge line except the outermost first edge line, and cutting the connecting piece at the outer side of the outermost second edge line and at a distance from the outermost second edge line by the width of one front edge electrode, so that a plurality of independent connecting piece small sections are cut off by the connecting piece;
obtaining: the back electrode of each cell is welded with an independent connecting piece small section, the connecting piece small section is arranged along the left-right direction, the connecting piece small section does not extend to the outer side of the first sideline of the cell where the connecting piece small section is located, the connecting piece small section extends to the outer side of the second sideline of the cell where the connecting piece small section is located, and the length of the connecting piece small section exceeding the second sideline of the cell where the connecting piece small section is located is equal to the width of the front edge; taking the part of the connecting piece small section, which exceeds the second sideline of the battery piece where the connecting piece small section is positioned, as an external section of the connecting piece small section;
2) and (3) overlapping the battery strings:
synchronously sucking up each battery piece, and then respectively rotating each battery piece for a certain angle, wherein the rotating direction of each battery piece is that the first sideline is upward and the second sideline is downward;
reducing the distance between two adjacent battery pieces to ensure that the front edge electrode is positioned right above the small external section of the adjacent connecting piece;
synchronously placing each battery piece on a second carrying platform, and pressing the front edge electrode on the small section external section of the connecting piece positioned right below the second carrying platform to complete the lap joint of the single battery string;
3) welding the battery string:
and heating and welding the battery strings on the second carrying platform to weld the front edge electrode and the small external section of the connecting piece pressed under the front edge electrode together to complete the welding of the single battery string.
2. The method for preparing the battery string according to claim 1, wherein in the step 1), the distance between two adjacent battery pieces is adjusted by adjusting the distance between the first carrying platform, so that the distance between two adjacent battery pieces is equal to the width of the front-side edge electrode.
3. The method for preparing a battery string according to claim 1, wherein in the step 1), the connecting members on the respective battery pieces are welded simultaneously, so that the connecting members are welded with the back electrodes of the respective battery pieces.
4. The method of manufacturing a battery string according to claim 1, wherein in step 1), the connecting member is cut using a laser.
5. The method for preparing a battery string according to claim 1, wherein in the step 2), the battery pieces are synchronously sucked up by a suction cup manipulator, the suction cup manipulator is provided with a plurality of suction cups, the suction cups are sequentially arranged along the left-right direction, and the suction cups are positioned at the same height; the sucker manipulator is provided with a sucker distance adjusting mechanism for adjusting the distance between two adjacent suckers, and each sucker is also provided with a turnover mechanism; each sucker sucks up one battery piece, the battery pieces are rotated by a certain angle through the turnover mechanism, and the distance between every two adjacent battery pieces is reduced through the sucker distance adjusting mechanism.
6. The method for preparing the battery string according to claim 1, wherein in the step 3), the battery string on the second carrying platform is heated and welded through a plurality of heating lamps, heating areas of the plurality of heating lamps cover the front connection position of each battery, and the front connection position of each battery is the connection position of the front edge electrode and the external section of the small section of the connecting piece.
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| CN201910917034.XA CN110649126B (en) | 2019-09-26 | 2019-09-26 | Preparation method of battery string |
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| CN111451657A (en) * | 2020-01-13 | 2020-07-28 | 任建丽 | Series welding method for photovoltaic cell string in crystalline silicon photovoltaic cell assembly |
| CN111112772A (en) * | 2020-01-19 | 2020-05-08 | 常州时创能源股份有限公司 | Series welding method of solar cell |
| CN111129233B (en) * | 2020-02-24 | 2021-04-20 | 常州时创能源股份有限公司 | Photovoltaic cell piece cutting series welding process |
| CN111180543A (en) * | 2020-02-24 | 2020-05-19 | 常州时创能源股份有限公司 | Solar cell segmentation series welding process |
| CN112563361A (en) * | 2020-12-11 | 2021-03-26 | 常州时创能源股份有限公司 | Connecting piece and application thereof |
| CN113097338B (en) * | 2021-03-03 | 2022-08-19 | 无锡先导智能装备股份有限公司 | Method and apparatus for preparing battery string |
| CN113458687B (en) * | 2021-07-07 | 2022-06-10 | 宁夏小牛自动化设备有限公司 | Pitch device, welding head, welding device and welding method |
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| DE102009060604A1 (en) * | 2009-12-23 | 2011-06-30 | Energetica Holding Gmbh | Solar module with a printed circuit board and method of manufacture and application |
| US9780253B2 (en) * | 2014-05-27 | 2017-10-03 | Sunpower Corporation | Shingled solar cell module |
| CN107186392A (en) * | 2017-04-20 | 2017-09-22 | 陈红 | A kind of solar battery sheet automatic string welding machine welding shears alignment system |
| KR102020347B1 (en) * | 2017-11-21 | 2019-09-11 | 한국생산기술연구원 | Method of manufacturing solar module and shingled array unit having shingled array unit, shingled array unit |
| CN110112259B (en) * | 2019-05-28 | 2023-11-28 | 江阴初旭智能科技有限公司 | Tile overlapping and series welding integrated machine and application and method thereof |
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