CN106862690A - IBC battery lists welding stage, series connection welding bench and its Series connection welding method - Google Patents
IBC battery lists welding stage, series connection welding bench and its Series connection welding method Download PDFInfo
- Publication number
- CN106862690A CN106862690A CN201710071353.4A CN201710071353A CN106862690A CN 106862690 A CN106862690 A CN 106862690A CN 201710071353 A CN201710071353 A CN 201710071353A CN 106862690 A CN106862690 A CN 106862690A
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- welding
- table top
- ibc
- cell piece
- window
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- Pending
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- 238000003466 welding Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/38—Conductors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a kind of IBC batteries list welding stage, with the table top for carrying cell piece, it is characterised in that：The table top is arc-shaped curved surface, the floor projection of table top is square more than battery chip size, some stomatas are offered on table top, each stomata is connected and is connected with source of the gas by valve inside table top, so as to negative-pressure adsorption cell piece can be produced, table top is formed around vertical spacing retaining wall, top of the height of spacing retaining wall higher than table top, several windows for fixing welding are respectively offered on the spacing retaining wall of the left and right sides, the position of window and the position consistency of cell piece back side both positive and negative polarity electrode, the bottom wall of window is the cambered surface or plane of not higher than table top extended surface.Meanwhile, the invention also discloses a kind of IBC battery strings combination welding bench and its Series connection welding method.The present invention has Series connection welding effect good, the advantage of efficiency high.
Description
Technical field
The present invention relates to a kind of solar cell welding bench, more particularly to a kind of IBC batteries list welding stage, series connection welding bench and
Its Series connection welding method, belongs to solar cell production technical field.
Background technology
IBC batteries, that is, refer to intersection back contacts（Interdigitated Back Contact）Battery.With conventional sun electricity
The maximum difference in pond is that the both positive and negative polarity of conventional batteries is respectively in the front and back of battery, and IBC battery front sides are electrodeless,
Both positive and negative polarity metal grid lines are in finger-like cross arrangement in cell backside.Because front is unobstructed, optical loss is reduced, therefore on an equal basis
The IBC batteries of area have bigger generating efficiency, and more aesthetically pleasing.Because main gate line is entirely located in cell backside, therefore
IBC batteries are also different from conventional solar cell when connecting, also favourable except traditional method welded using conductive welding
The method encapsulated with conductive backings and conducting resinl.But the latter is relatively costly, it is unfavorable for marketing.Traditional welding welding
Although with the stronger market competitiveness, because conventionally used welding bench table top is plane, welding is painting tin brazing band
Welding, expanded by heating during welding, cooling after-contraction causes cell piece flexural deformation.The IBC cell pieces of bending increased fragment rate
With the degree of difficulty of establishment of component.Therefore, existing series connection welding bench can not meet the welding requirements of IBC solar cells.
For this reason, it may be necessary to design one kind dedicated for IBC welding batteries platform and its welding method.
The content of the invention
For in the prior art, IBC batteries are susceptible to the technical problem of bending to the present invention after welding, there is provided a kind of
IBC battery strings are combined welding bench, reduce the fragment rate of IBC batteries, make IBC battery strings components be easier to make, and reduce its production
Cost.
Therefore, the present invention is adopted the following technical scheme that：
A kind of IBC batteries list welding stage, with the table top for carrying cell piece, it is characterised in that：The table top is arc-shaped curved surface,
The floor projection of table top is square more than battery chip size, and some stomatas, each stomata phase inside table top are offered on table top
Connect and be simultaneously connected with source of the gas by valve, so as to negative-pressure adsorption cell piece can be produced, table top is formed around vertical limiting block
Wall, the top of the height higher than table top of spacing retaining wall respectively offers several for fixed weldering on the spacing retaining wall of the left and right sides
The window of band, the position of window and the position consistency of cell piece back side both positive and negative polarity electrode, the bottom wall of window prolongs for not higher than table top
Stretch the cambered surface or plane in face.
Further, each stomata being distributed as on table top is middle sparse, and edge is intensive.
Further, the radian of the arc-shaped curved surface is0.1-3 rad。
Further, the window takes the shape of the letter U on the whole, and top is open end；The width of window is connected to just more than two root beads
The width of the welding of negative pole.
Further, the thickness of the spacing retaining wall is 2-10mm.
Further, the table top is made using the good material of heat conductivility.
Another aspect of the present invention, there is provided a kind of IBC battery strings are combined welding bench, it is characterised in that：Comprising on several
Single welding stage is stated, several single welding stage justified margins, is equally spacedly fixed on plummer, the valve of each single welding stage is connected to
On pump-line, pump-line is connected with source of the gas.
Further, the spacing between single welding stage is 0-10 mm.
Further, plummer is made using the good material of heat conductivility.
A kind of IBC batteries series connection welding method, welding bench is combined using above-mentioned IBC battery strings, is comprised the steps：
S1：Before welding, it is centrally placed on the table top of each single welding stage, adjacent cell piece is mutually by IBC cell backs upwardly
180 ° of ground are placed, to cause that the positive pole of adjacent cell piece is welded in same root bead band with negative pole；
S2：Source of the gas is opened, is evacuated using pump-line, each cell piece is bent and is adsorbed respectively in each single welding stage
On table top；
S3：Tin brazing band will be applied to be placed at each the window's position, two root bead bands are placed at each window respectively, battery is covered each by
The both positive and negative polarity of piece；
S4：Streaked on welding with high temperature electric iron so that welding is together with electrode welding；
S5：The repeat step S3-S4 on each single welding stage；After the completion of, welding cooling is waited, complete welding.
The present invention has the advantages that：
IBC batteries list welding stage of the invention, by the way that by mesa designs camber curved surface, curved surface is gradually had a down dip from top to two ends,
The low shape in high, both sides in the middle of being formed, meanwhile, by setting stomata on table top, produce suction-operated, welding to open by stomata
Before beginning, that is, open source of the gas and adsorb on table top cell piece, IBC cell pieces is bent before welding, welding laminating bending
Cell piece welded.IBC cell pieces can be made to recover plane configuration after welding cooling meat.Smooth cell piece is more conducive to group
Part makes, and can also reduce fragment rate.
IBC battery strings combination welding bench provided by the present invention and its IBC batteries series connection welding method, with Series connection welding
Effect is good, the advantage of efficiency high.
Brief description of the drawings
Fig. 1 is the structural representation of single welding stage of the invention；
Fig. 2 is the structural representation of welding bench of the invention；
Wherein：100 is single welding stage, and 1 is table top, and 2 is stomata, and 3 is valve, and 4 is spacing retaining wall, and 5 is window, and 6 is carrying
Platform, 7 is pump-line.
Specific embodiment
The present invention is made further to describe in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, IBC batteries list welding stage 100 of the invention, with the table top 1 for carrying cell piece, the table top is arc
Shape curved surface, curved surface is gradually had a down dip from top to two ends, forms the low shape in middle high, both sides.The radian of the arc-shaped curved surface is0.1-3 rad。
The floor projection of table top be it is square more than battery chip size, herein more than being slightly over, can be according to electricity
The size of pond piece is set, such as：Battery chip size is 125*125 cm2, then the floor projection that can set table top 1 is the length of side
The square of 125.5 to 126 cm；If battery chip size is 156.75*156.75 cm2, then the level that can set table top is thrown
Shadow is the square of the cm of the length of side 157 to 158；Certainly, cell piece is alternatively other sizes, then the size of table top is according to cell piece
Size be designed, slightly larger than the size of cell piece, cell piece is placed on when on table top, slightly loosely.
Some stomatas 2 are offered on table top 1, each stomata is connected inside table top and is connected with source of the gas by valve 3, from
And negative-pressure adsorption cell piece can be produced.In order to obtain more preferable adsorption effect, each stomata 2 is distributed as centre on table top
Sparse, edge is intensive.So, table top preferably can adsorb the both sides of cell piece, it is ensured that the edge laminating of cell piece is not
Tilt.
Table top is formed around vertical spacing retaining wall 4, the top of the height higher than table top 1 of spacing retaining wall, height herein
In slightly above, beyond ensuring that cell piece will not move to table top 1, to play spacing effect；The thickness of spacing retaining wall
It is 2-10mm.
Several windows 5 for fixing welding are respectively offered on the spacing retaining wall of the left and right sides, the window is on the whole
Take the shape of the letter U, top is open end, with a bottom wall and two side walls, the bottom wall of window is not higher than extension of the table top in both sides
The cambered surface or plane in face, the width of window（I.e.：The distance between window two side）More than the welding that two root beads are connected to both positive and negative polarity
Width so that window 5 can accommodate the welding that two root beads are connected to cell piece both positive and negative polarity；The position of window 5 and the cell piece back side
The position consistency of both positive and negative polarity electrode.
In order to obtain more preferable implementation result, table top 1 is made using the good material of heat conductivility, such as aluminium, copper, iron, or
Its alloy etc., the heat that will be produced in welding process is distributed in time.
Embodiment 2
As shown in Fig. 2 another aspect of the present invention, also provides a kind of IBC battery strings combination welding bench, comprising several above-mentioned lists
Welding stage 100, in the present embodiment, single welding stage 100 is 10-12, each single welding stage justified margin, is equally spacedly fixed on plummer
6, the valve 3 of each single welding stage is connected on pump-line 7, and pump-line 7 is connected with source of the gas.Spacing between single welding stage is
0-10 mm。
Plummer is made using the good material of heat conductivility, such as aluminium, copper, iron, or its alloy etc., will be produced in welding process
Raw heat is distributed in time.
Embodiment 3
Another aspect of the present invention, also provides a kind of IBC batteries series connection welding method, is combined using above-mentioned IBC battery strings and welded
Platform, comprises the steps：
S1：Before welding, it is centrally placed on the table top of each single welding stage, adjacent cell piece is mutually by IBC cell backs upwardly
180 ° of ground are placed, i.e. the head and the tail position of adjacent cell piece the same face is adjacent to placement（Such as：The equal back side of cell piece is upward, adjacent
The top of cell piece and tail end are adjacent to placement；Rather than 180 ° of upset）, to cause that the positive pole of adjacent cell piece is welded with negative pole
It is connected to same root bead band；
S2：Source of the gas is opened, is evacuated using pump-line, each cell piece is bent and is adsorbed respectively in each single welding stage
On table top；
S3：Tin brazing band will be applied to be placed at each the window's position, two root bead bands are placed at each window respectively, battery is covered each by
The both positive and negative polarity of piece；
S4：Streaked on welding with high temperature electric iron so that welding is together with electrode welding；
S5：The repeat step S3-S4 on each single welding stage；After the completion of, welding cooling is waited, complete welding.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
Further describe, should be understood that and the foregoing is only specific implementation of the patent example, be not limited to this
Invention, all any modification, equivalents within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (10)
1. a kind of IBC batteries list welding stage, with the table top for carrying cell piece, it is characterised in that：The table top is bent arc
Face, the floor projection of table top is square more than battery chip size, and some stomatas are offered on table top, and each stomata is inside table top
It is connected and is connected with source of the gas by valve, so as to negative-pressure adsorption cell piece can be produced, being formed around for table top is vertical spacing
Retaining wall, the top of the height higher than table top of spacing retaining wall, respectively offers several for fixing on the spacing retaining wall of the left and right sides
The window of welding, the position of window and the position consistency of cell piece back side both positive and negative polarity electrode, the bottom wall of window are not higher than table top
The cambered surface or plane of extended surface.
2. IBC batteries list welding stage according to claim 1, it is characterised in that：Each stomata being distributed as on table top
Middle sparse, edge is intensive.
3. IBC batteries list welding stage according to claim 1, it is characterised in that：The radian of the arc-shaped curved surface is0.1-3 rad。
4. IBC batteries list welding stage according to claim 1, it is characterised in that：The window takes the shape of the letter U on the whole, and top is
Open end；The width of window is connected to the width of the welding of both positive and negative polarity more than two root beads.
5. IBC batteries list welding stage according to claim 1, it is characterised in that：The thickness of the spacing retaining wall is 2-10mm.
6. IBC batteries list welding stage according to claim 1, it is characterised in that：The table top is good using heat conductivility
Material makes.
7. a kind of IBC battery strings are combined welding bench, it is characterised in that：Comprising any described single welderings of several claims 1-6
Platform, several single welding stage justified margins, is equally spacedly fixed on plummer, and the valve of each single welding stage is connected to exhaust tube
On road, pump-line is connected with source of the gas.
8. IBC battery strings according to claim 7 are combined welding bench, it is characterised in that：Spacing between single welding stage is 0-
10 mm。
9. IBC battery strings according to claim 7 are combined welding bench, it is characterised in that：Plummer is good using heat conductivility
Good material makes.
10. a kind of IBC batteries series connection welding method, any described IBC battery strings combination welding benches of usage right requirement 7-9,
Comprise the steps：
S1：Before welding, it is centrally placed on the table top of each single welding stage, adjacent cell piece is mutually by IBC cell backs upwardly
180 ° of ground are placed, to cause that the positive pole of adjacent cell piece is welded in same root bead band with negative pole；
S2：Source of the gas is opened, is evacuated using pump-line, each cell piece is bent and is adsorbed respectively in each single welding stage
On table top；
S3：Tin brazing band will be applied to be placed at each the window's position, two root bead bands are placed at each window respectively, battery is covered each by
The both positive and negative polarity of piece；
S4：Streaked on welding with high temperature electric iron so that welding is together with electrode welding；
S5：The repeat step S3-S4 on each single welding stage；After the completion of, welding cooling is waited, complete welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071353.4A CN106862690A (en) | 2017-02-09 | 2017-02-09 | IBC battery lists welding stage, series connection welding bench and its Series connection welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071353.4A CN106862690A (en) | 2017-02-09 | 2017-02-09 | IBC battery lists welding stage, series connection welding bench and its Series connection welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106862690A true CN106862690A (en) | 2017-06-20 |
Family
ID=59166040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710071353.4A Pending CN106862690A (en) | 2017-02-09 | 2017-02-09 | IBC battery lists welding stage, series connection welding bench and its Series connection welding method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106862690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066389A1 (en) * | 2022-09-27 | 2024-04-04 | 常州时创能源股份有限公司 | Solar cell soldering method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024066389A1 (en) * | 2022-09-27 | 2024-04-04 | 常州时创能源股份有限公司 | Solar cell soldering method |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant after: trina solar Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant after: TRINASOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Applicant before: trina solar Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |