CN111129220A - Preparation method of laminated tile assembly - Google Patents
Preparation method of laminated tile assembly Download PDFInfo
- Publication number
- CN111129220A CN111129220A CN201911344761.8A CN201911344761A CN111129220A CN 111129220 A CN111129220 A CN 111129220A CN 201911344761 A CN201911344761 A CN 201911344761A CN 111129220 A CN111129220 A CN 111129220A
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- China
- Prior art keywords
- battery
- pieces
- laminated
- conductive adhesive
- laminated cell
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Links
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 238000007639 printing Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000002503 electroluminescence detection Methods 0.000 claims description 4
- 238000000241 photoluminescence detection Methods 0.000 claims description 4
- 238000012858 packaging process Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
- H02S20/25—Roof tile elements
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
-
- 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
Abstract
The invention relates to a preparation method of a laminated assembly, which comprises the following steps: firstly, pre-cutting the whole laminated cell, namely pre-cutting the laminated cell according to a design pattern; step two, breaking the laminated cell into small pieces, and breaking the laminated cell into pieces according to a precut route; printing small conductive adhesive, namely printing the conductive adhesive on the broken small pieces; and step four, stacking the sheets into strings. The step two and the step three also comprise a step: and testing and sorting the broken battery pieces. According to the invention, through optimizing the process flow, the cost waste caused by bad sheet breaking is reduced, the test and sorting of small sheets are increased, and the yield of the battery string and the power of the assembly are improved.
Description
Technical Field
The invention relates to the technical field of solar cell modules, in particular to a preparation method of a laminated tile module.
Background
With the wide application of solar energy, the solar photovoltaic panel industry is also developed vigorously, and when a traditional solar cell panel is produced, due to the characteristics of the structure of the cell, a plurality of cells and welding strips need to be welded into a cell string, and then the cell string and other components are assembled into a whole. Because each cell is provided with the welding strip, the illumination area of the cell is greatly reduced, and the effective power generation area is reduced; moreover, on the battery string formed by serial connection, the distance is also formed between the battery pieces, so that the illumination area or the power generation area is also reduced; the above two causes cause a low power generation efficiency of the battery piece.
The lamination assembly adopts another battery piece interconnection technology, slices the battery piece, places one side of the battery piece A below another battery piece B after slicing, makes the main grid line electrode on the front side of the battery piece A and the main grid line electrode on the back side of the battery piece B coincide with each other, and adopts materials such as conductive adhesive, solder strip or tin paste to form physical connection and conductive connection between the two electrodes.
The preparation process of the laminated tile assembly in the prior art has two kinds, for example, as provided in chinese patent CN108091705B, the method one: monolithic laser pre-cut
Printing of whole conductive adhesive
Breaking into small pieces
Stacking the sheets into a string; the second method comprises the following steps: printing of whole conductive adhesive
Monolithic laser pre-cut
Breaking into small pieces
The laminations are strung.
The existing preparation method has the following defects: (1) the laminated cell is required to be cut into small pieces and then laminated and welded, the conventional cell only carries out whole-piece efficiency sorting and EL appearance detection when leaving factory at present, if the small pieces at the assembly end are not sorted or detected after being broken off, the current mismatch of the assembly cell string and the yield of the cell string are greatly influenced, and according to the existing process flow, the small pieces with conductive adhesive are not suitable for carrying out small-piece sorting test and other items after the broken pieces are positioned at a printing station; (2) the sheet breaking process is the process which is most likely to cause defects in the whole tile assembly process, mainly comprises sheet cracking, and the sheet breaking is carried out after the whole printing of the original tile assembly process, so that the conductive adhesive printed on the whole battery is wasted after abnormality occurs.
Disclosure of Invention
The invention aims to overcome the defects and provide a preparation method of a laminated tile assembly, which optimizes the process flow, reduces the waste of conductive adhesive and reduces the production cost.
The purpose of the invention is realized as follows: a method of making a shingle assembly comprising the steps of:
firstly, pre-cutting the whole laminated cell, namely pre-cutting the laminated cell according to a design pattern; step two, breaking the laminated cell into small pieces, and breaking the laminated cell into pieces according to a precut route; printing small conductive adhesive, namely printing the conductive adhesive on the broken small pieces; and step four, stacking the sheets into strings.
A method for preparing a laminated assembly further comprises a step between the second step and the third step: and testing and sorting the broken battery pieces.
A preparation method of a laminated assembly comprises the steps of testing and sorting test items, wherein the test items comprise appearance detection, EL detection, PL detection and power level sorting detection, and the test items are selectively added according to the quality of a battery piece.
The method for preparing the shingle assembly comprises the steps of stacking the small pieces into the battery strings, welding the battery strings and the edge welding strips into strings, and finally composing and laminating the battery strings.
A method for preparing a laminated assembly comprises the steps that adjacent battery chips are overlapped up and down, the overlapping width is 0.1mm-3mm, ECA conductive adhesive is arranged on the overlapped portion, and the length of a battery string depends on the number of the chips.
The fourth step of the preparation method of the laminated tile assembly further comprises an assembly packaging process and a junction box connecting process.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the technological method of breaking the sheet first and then printing the conductive adhesive is adopted, so that the cost waste caused by bad breaking of the sheet is reduced by optimizing the technological process, and the production cost is reduced;
(2) according to the invention, test sorting items such as small piece IV efficiency grading, EL/PL detection, appearance detection and the like can be selectively added after the piece breaking process, so that the yield of the battery string and the power of the assembly are improved.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic structural diagram of a battery piece before cutting according to the invention.
Fig. 3 is a schematic diagram of laser pre-cutting in step one of the present invention.
Fig. 4 is a schematic diagram of sheet breaking in step two of the present invention.
Fig. 5 is a schematic diagram of cell overlap at step five of the present invention.
Fig. 6 is a schematic structural diagram of a battery string according to the present invention.
Fig. 7 is a stack diagram of a battery string at step eight of the present invention.
Fig. 8 is a back view of the assembly of the present invention.
Fig. 9 is an electrical schematic of the present invention.
Wherein:
a first bus bar 1, a second bus bar 2, a third bus bar 3, a fourth bus bar 4, a fifth bus bar 5, and a sixth bus bar 6.
Detailed Description
Example 1:
referring to fig. 1-9, the present invention relates to a method for manufacturing a laminated assembly, comprising the steps of:
s1: the whole piece is pre-cut, and the cutting is carried out,
pre-cutting the laminated cell according to a design pattern, wherein the cutting mode comprises but is not limited to laser cutting, stress cutting and the like;
the cutting depth of the laser precutting is 30-80%;
s2: breaking the slices into small pieces with fingers and fingers,
breaking the laminated battery pieces into small battery pieces according to a precut route;
s3: the cell pieces are tested and sorted out,
testing and sorting the battery pieces, wherein the testing items comprise one or more of appearance detection, EL detection, PL detection and power level sorting detection, and can be selectively added according to the quality of the battery pieces;
s4: printing a small piece of conductive adhesive on the surface of the substrate,
conducting conductive adhesive printing on the battery slices qualified in test and sorting;
s5: the chips are stacked into a battery string,
the adjacent battery chips are overlapped up and down, the overlapping width is 0.1mm-3mm, the ECA conductive adhesive plays roles of bonding, interconnection and conduction, and the length of the battery string depends on the number of the chips;
s6: welding the battery string and the edge welding strip into a string,
the edge welding strip with the punching structure is adopted to reduce welding stress, the edge welding strip with the punching structure comprises a single-hole edge welding strip, a double-hole edge welding strip, a long-hole edge welding strip and the like, and the width of the edge welding strip is 5-20 mm;
s7: the cell strings are laid out and laminated on each other,
the battery pack comprises a left battery string, a right battery string, a fourth bus bar 4, a fifth bus bar 5, a third bus bar 3, a fourth bus bar 4, a fifth bus bar 6 and a sixth bus bar 6, wherein the left battery string, the right battery string, the left battery string and the right battery string are in circuit connection through the first bus bar 1, the second bus bar 2 and the third bus bar 3 are respectively welded with one end of the left battery string, the right battery string and one end of the right battery string, the fourth bus bar 4 is connected with the second bus bar 2, the fifth bus bar 5 is connected with the third bus bar 3, the fourth bus bar 4 and the fifth bus bar 5 serve as positive and negative output ends of the pack, the sixth bus bar;
s8: a component packaging process;
s9: the connecting junction box is connected, and the junction box is arranged at two ends of the assembly in a split mode, so that the length of a cable is saved conveniently.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. A method for preparing a laminated assembly is characterized by comprising the following steps:
firstly, pre-cutting the whole laminated cell, namely pre-cutting the laminated cell according to a design pattern; step two, breaking the laminated cell into small pieces, and breaking the laminated cell into pieces according to a precut route; printing small conductive adhesive, namely printing the conductive adhesive on the broken small pieces; and step four, stacking the sheets into strings.
2. A method of manufacturing a shingle assembly according to claim 1, wherein: the step two and the step three also comprise a step: and testing and sorting the broken battery pieces.
3. A method of manufacturing a shingle assembly according to claim 2, wherein: the test items of the test sorting comprise appearance detection, EL detection, PL detection and power level sorting detection, and the test items are selectively added according to the quality of the battery piece.
4. A method of manufacturing a shingle assembly according to claim 1, wherein: and the step four of stacking and stringing comprises overlapping the small pieces into a battery string, welding the battery string and the edge welding strip into a string, and finally typesetting and stacking the battery string.
5. A method of manufacturing a stack assembly according to claim 4, wherein: the adjacent battery chips are overlapped up and down, the overlapping width is 0.1mm-3mm, ECA conductive adhesive is arranged on the overlapped part, and the length of the battery string depends on the number of the chips.
6. A method of manufacturing a shingle assembly according to claim 1, wherein: and step four, further comprising a component packaging process and a junction box connecting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344761.8A CN111129220A (en) | 2019-12-24 | 2019-12-24 | Preparation method of laminated tile assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344761.8A CN111129220A (en) | 2019-12-24 | 2019-12-24 | Preparation method of laminated tile assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111129220A true CN111129220A (en) | 2020-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911344761.8A Pending CN111129220A (en) | 2019-12-24 | 2019-12-24 | Preparation method of laminated tile assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111129220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707767A (en) * | 2021-08-17 | 2021-11-26 | 江苏爱康科技股份有限公司 | Preparation method of heterojunction battery piece and laminated assembly thereof |
| CN114256384A (en) * | 2021-12-20 | 2022-03-29 | 环晟新能源(江苏)有限公司 | Novel laminated assembly battery connection process |
| CN115188836A (en) * | 2022-06-02 | 2022-10-14 | 浙江爱康光电科技有限公司 | High-density photovoltaic module without main grid and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110335921A (en) * | 2019-07-29 | 2019-10-15 | 无锡先导智能装备股份有限公司 | A kind of printing equipment |
| CN110379891A (en) * | 2019-08-02 | 2019-10-25 | 浙江晶科能源有限公司 | A kind of preparation method of photovoltaic module |
| CN110429153A (en) * | 2019-08-07 | 2019-11-08 | 通威太阳能（合肥）有限公司 | A kind of stacked wafer moudle interconnection architecture and preparation method thereof |
-
2019
- 2019-12-24 CN CN201911344761.8A patent/CN111129220A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335921A (en) * | 2019-07-29 | 2019-10-15 | 无锡先导智能装备股份有限公司 | A kind of printing equipment |
| CN110379891A (en) * | 2019-08-02 | 2019-10-25 | 浙江晶科能源有限公司 | A kind of preparation method of photovoltaic module |
| CN110429153A (en) * | 2019-08-07 | 2019-11-08 | 通威太阳能（合肥）有限公司 | A kind of stacked wafer moudle interconnection architecture and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707767A (en) * | 2021-08-17 | 2021-11-26 | 江苏爱康科技股份有限公司 | Preparation method of heterojunction battery piece and laminated assembly thereof |
| CN114256384A (en) * | 2021-12-20 | 2022-03-29 | 环晟新能源(江苏)有限公司 | Novel laminated assembly battery connection process |
| CN114256384B (en) * | 2021-12-20 | 2024-03-15 | 环晟新能源(江苏)有限公司 | Novel connection technology for laminated tile assembly battery |
| CN115188836A (en) * | 2022-06-02 | 2022-10-14 | 浙江爱康光电科技有限公司 | High-density photovoltaic module without main grid and preparation method thereof |
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Application publication date: 20200508 |