CN113020796B - Series welding method of flexible solar cell - Google Patents
Series welding method of flexible solar cell Download PDFInfo
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- CN113020796B CN113020796B CN202110583936.1A CN202110583936A CN113020796B CN 113020796 B CN113020796 B CN 113020796B CN 202110583936 A CN202110583936 A CN 202110583936A CN 113020796 B CN113020796 B CN 113020796B
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- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000002313 adhesive film Substances 0.000 claims abstract description 34
- 239000000523 sample Substances 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 239000003292 glue Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 229910000679 solder Inorganic materials 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a series welding method of a flexible solar cell, which comprises the steps that a vacuum adsorption platform is horizontally placed; the first material belt is used for transmitting the solar cell; the second material belt is used for conveying the conductive adhesive film; the optical positioning module is arranged above the vacuum adsorption platform and used for identifying positioning points of the solar cell on the vacuum adsorption platform; the suction nozzle device can suck the solar cell and the conductive adhesive film and can move between the vacuum adsorption platform and the first material belt and between the vacuum adsorption platform and the second material belt; the glue dispensing tube is arranged above the vacuum adsorption platform and can dispense glue to the solar cell adsorbed on the vacuum adsorption platform; the pressing probe is arranged above the vacuum adsorption platform and can move along the vertical direction of the surface of the vacuum adsorption platform so as to tightly press the solar cell; the series welding method of the flexible solar cell can realize automatic production, and has the advantages of firm welding, high consistency, controllable production quality and high efficiency.
Description
Technical Field
The invention relates to the technical field of solar cell manufacturing, in particular to a series welding method of a flexible solar cell.
Background
The flexible solar cell has the characteristics of lightness, thinness and softness, and the solar cell is easy to damage or even discard when manual welding operation is carried out. Meanwhile, the manual welding mode for the solar cell has defects, such as poor firmness of each welding point, low welding consistency, uncontrollable quality of produced products and extremely low production efficiency.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the flexible solar cell series welding machine provided by the invention can realize automatic production, is firm in welding and high in consistency, and has controllable production quality and high efficiency.
The invention also provides a series welding method of the flexible solar cell.
The flexible solar cell stringer according to an embodiment of the first aspect of the present invention includes: the vacuum adsorption platform is horizontally arranged; the first material belt is used for transmitting the solar cell, and the first material belt and the vacuum adsorption platform are arranged side by side; the second material belt is used for conveying a conductive adhesive film and is arranged side by side with the vacuum adsorption platform; the optical positioning module is arranged above the vacuum adsorption platform and used for identifying a positioning point of the solar cell on the vacuum adsorption platform; the suction nozzle device is arranged above the vacuum adsorption platform and can move between the vacuum adsorption platform and the first material belt and between the vacuum adsorption platform and the second material belt; the dispensing tube is arranged above the vacuum adsorption platform and can dispense the solar cell adsorbed on the vacuum adsorption platform; and the pressing probe is arranged above the vacuum adsorption platform and can move along the vertical direction of the surface of the vacuum adsorption platform so as to tightly press the solar cell.
The flexible solar cell stringer provided by the embodiment of the invention at least has the following technical effects: the vacuum adsorption platform can effectively adsorb the solar cell and prevent displacement; the first material belt and the second material belt can continuously and automatically convey the solar cell and the conductive adhesive film; the optical positioning module can accurately position the spatial position of the solar cell for subsequent operation positioning; the suction nozzle device can adsorb and place the solar cell and the conductive adhesive film; dispensing is carried out by the glue dispensing tube, and the probe is pressed down to ensure that the solar cells are fixedly connected with each other.
In some embodiments of the present invention, the first material tape is provided with a plurality of solar cell placing grooves, and the solar cell placing grooves are uniformly spaced along a conveying direction of the first material tape.
In some embodiments of the present invention, the second material tape is provided with a plurality of conductive adhesive film placing grooves, and the conductive adhesive film placing grooves are uniformly spaced along a conveying direction of the second material tape.
In some embodiments of the present invention, a heating device is disposed in the vacuum chuck platform to heat the vacuum chuck platform.
In some embodiments of the invention, the suction cup of the suction nozzle device is a silicone soft suction cup.
According to the second aspect of the invention, the series welding method of the flexible solar cell comprises the flexible solar cell series welding machine and the following steps: step S1, the suction nozzle device sucks one solar cell from the first material belt and places the solar cell on the vacuum adsorption platform; step S2, the optical positioning module obtains the position information of the solar cell, and the suction nozzle device sucks the conductive adhesive film from the second material belt and places the conductive adhesive film on the welding area of the solar cell; step S3, dispensing conductive adhesive on the welding area of the solar cell attached with the conductive adhesive film by a dispensing tube; step S4, the optical positioning module obtains the new position information of the solar cell, the suction nozzle device adsorbs the next solar cell, and the back electrode area is placed on the welding area of the previous solar cell; step S5, pressing the downward probe on the welding area of the connection of the two solar cells, heating and raising the temperature to solidify the conductive adhesive film and the conductive adhesive; step S6, the steps S2 to S5 are circularly performed until the solar cell string is formed.
The series welding method of the flexible solar cell provided by the embodiment of the invention at least has the following beneficial effects: the solar cells are welded firmly and have high consistency, controllable production quality and high efficiency.
In some embodiments of the present invention, in step S1, the following steps are included: step S11, heating the vacuum adsorption platform by a heating device, and keeping the temperature constant; step S12, the suction nozzle device sucks one solar cell from the first tape and places the solar cell on the vacuum adsorption platform.
In some embodiments of the present invention, in step S3, the conductive paste includes silver paste, solder paste, and conductive silicone.
In some embodiments of the invention, in step S5, the pressing probe is heated to raise the temperature, and the temperature is controlled to be 100-200 ℃.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a flowchart of the operation of the embodiment of the present invention.
Reference numerals:
the vacuum adsorption platform 110, the first tape 220, the second tape 230, the solar cell placement groove 240, the conductive adhesive film placement groove 250, the suction nozzle device 310, the dispensing tube 410, and the push-down probe 430.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, a flexible solar cell stringer according to an embodiment of a first aspect of the present invention includes: the vacuum adsorption platform 110, wherein the vacuum adsorption platform 110 is horizontally arranged; the first material belt 220, the first material belt 220 is used for transporting the solar cell, and the first material belt 220 is arranged side by side with the vacuum adsorption platform 110; a second material belt 230, wherein the second material belt 230 is used for transmitting the conductive adhesive film, and the second material belt 230 is arranged side by side with the vacuum adsorption platform 110; the optical positioning module is arranged above the vacuum adsorption platform 110 and used for identifying the positioning point of the solar cell on the vacuum adsorption platform 110; the suction nozzle device 310 is arranged above the vacuum adsorption platform 110, and can move between the vacuum adsorption platform 110 and the first material belt 220 and between the vacuum adsorption platform 110 and the second material belt 230; the dispensing tube 410 is arranged above the vacuum adsorption platform 110, and can dispense the solar cell adsorbed on the vacuum adsorption platform 110; the pressing probe 430 is disposed above the vacuum adsorption platform 110, and the pressing probe 430 can move along a vertical direction of the surface of the vacuum adsorption platform 110 to press the solar cell.
The first carrier tape 220 is used for transporting the solar cells, and the second carrier tape 230 is used for transporting the conductive adhesive film. The suction nozzle device 310 moves to the first material belt 220, sucks a solar cell and places the solar cell on the vacuum adsorption platform 110, and then the optical positioning module identifies a positioning point above the solar cell and records the position of the solar cell; the suction nozzle device 310 moves to the second material belt 230, and sucks a piece of conductive adhesive film to be placed on the welding area of the solar cell; the glue dispensing tube 410 is used for dispensing conductive glue at the welding area of the solar cell; the optical positioning module re-identifies new position information of the solar cell, the suction nozzle device 310 moves to the first material belt 220 to suck one solar cell again, and the back electrode area of the solar cell is placed on the welding area of the previous solar cell; the pressing probe 430 presses down to press the two solar cells tightly, and heats up to solidify the conductive adhesive film and the conductive adhesive.
In some embodiments of the present invention, the first material tape 220 is provided with a plurality of solar cell placing grooves 240, and the solar cell placing grooves 240 are uniformly spaced along the conveying direction of the first material tape 220.
The solar cell can be placed in the solar cell placing groove 240 of the first material belt 220, so that the position of the solar cell is relatively fixed, and the solar cell is not shifted due to the transmission of the first material belt 220, and is easier to be positioned and sucked by the suction nozzle device 310.
In some embodiments of the present invention, the second carrier tape 230 is provided with a plurality of conductive film placement slots 250, and the conductive film placement slots 250 are uniformly spaced along the conveying direction of the second carrier tape 230.
The conductive adhesive film can be placed in the conductive adhesive film placing groove 250 of the second material belt 230, so that the position of the conductive adhesive film is relatively fixed, and the conductive adhesive film is not shifted due to the transmission of the second material belt 230, and is easier to be positioned and sucked by the suction nozzle device 310.
In some embodiments of the present invention, a heating device is disposed in the vacuum chuck table 110 to heat the vacuum chuck table 110.
The vacuum adsorption platform 110 is heated, which is helpful to increase the adhesive force of the conductive adhesive film. The solar cell is formed by depositing a semiconductor on a copper substrate, natural warping is caused due to the difference of thermal expansion coefficients of the semiconductor layer and the copper substrate, heat of the vacuum adsorption platform 110 is transferred to the solar cell, the difference of the thermal expansion coefficients can be reduced by heating the solar cell, and the solar cell is enabled to be flat by means of the suction force of the vacuum adsorption platform 110, so that subsequent welding positioning is facilitated.
In some embodiments of the present invention, the suction cups of the suction nozzle arrangement 310 are silicone soft suction cups.
The material of the silica gel soft suction cup can be well compatible with the material of the solar cell, and when the suction nozzle device 310 sucks the solar cell, the surface of the solar cell cannot be damaged.
According to the second aspect of the invention, the series welding method of the flexible solar cell comprises the flexible solar cell series welding machine and the following steps: step S1, the nozzle device 310 sucks one solar cell from the first tape 220 and places the solar cell on the vacuum platform 110; step S2, the optical positioning module obtains the position information of the solar cell, and the suction nozzle device 310 sucks the conductive adhesive film from the second tape 230 and places the conductive adhesive film on the soldering area of the solar cell; step S3, dispensing the conductive adhesive on the welding area of the solar cell to which the conductive adhesive film is attached by the dispensing tube 410; step S4, the optical positioning module obtains new position information of the solar cell, and the suction nozzle device 310 sucks the next solar cell and places the back electrode area on the soldering area of the previous solar cell; step S5, pressing the probe 430 downwards on the welding area of the connection of the two solar cells, heating and raising the temperature to solidify the conductive adhesive film and the conductive adhesive; step S6, the steps S2 to S5 are circularly performed until the solar cell string is formed.
The solar cell is placed on the vacuum adsorption platform 110 and can be adsorbed to a fixed position; the conductive adhesive film and the conductive adhesive act together at the joint of the two solar cells and are used for fixing and conductively connecting the two adjacent solar cells.
In some embodiments of the present invention, in step S1, the following steps are included: step S11, heating the vacuum adsorption platform 110 by the heating device, and maintaining the temperature constant; in step S12, the nozzle device 310 sucks one solar cell from the first tape 220 and places the solar cell on the vacuum platform 110.
Before the solar cell is placed, the vacuum adsorption platform 110 is heated and kept at a constant temperature, so that the difference caused by the thermal expansion coefficients of a semiconductor layer and a copper substrate of the solar cell can be reduced, the solar cell is more flat and does not warp, and the subsequent positioning and welding are facilitated.
In some embodiments of the present invention, in step S3, the conductive paste includes silver paste, solder paste, and conductive silicone.
The conductive adhesive comprises silver paste, tin paste and conductive silica gel components, so that the conductivity of the joint of two adjacent solar cells can be improved, and the energy loss caused by the current passing through the joint is reduced.
In some embodiments of the present invention, in step S5, the pressing probe 430 is heated to raise the temperature, and the temperature is controlled to be 100-200 ℃.
The temperature of the pressing probe 430 is controlled to be 100-200 ℃, and when the temperature of the pressing probe 430 is lower than 100 ℃, the conductive adhesive film and the conductive adhesive can not be completely cured, so that the adhesion between two adjacent solar cells is poor, and poor contact is easily caused by desoldering; when the temperature of the pressing probe 430 is higher than 200 ℃, the surface of the solar cell is damaged due to the high temperature, and the service life and the quality of the finished product are reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A method of series soldering a flexible solar cell, comprising:
the vacuum adsorption platform (110), the vacuum adsorption platform (110) is horizontally placed, and a heating device is arranged in the vacuum adsorption platform (110) to heat the vacuum adsorption platform (110);
the first material belt (220), the first material belt (220) is used for conveying solar cells, and the first material belt (220) and the vacuum adsorption platform (110) are arranged side by side;
the second material belt (230), the second material belt (230) is used for conveying the conductive adhesive film, and the second material belt (230) is arranged side by side with the vacuum adsorption platform (110);
the optical positioning module is arranged above the vacuum adsorption platform (110) and used for identifying the positioning point of the solar cell on the vacuum adsorption platform (110);
a suction nozzle device (310), wherein the suction nozzle device (310) can suck the solar cell and the conductive adhesive film, the suction nozzle device (310) is arranged above the vacuum adsorption platform (110) and can move between the vacuum adsorption platform (110) and the first material belt (220) and between the vacuum adsorption platform (110) and the second material belt (230);
the glue dispensing tube (410) is arranged above the vacuum adsorption platform (110), and can dispense the solar cell adsorbed on the vacuum adsorption platform (110);
the pressing probe (430), the pressing probe (430) is arranged above the vacuum adsorption platform (110), and the pressing probe (430) can move along the vertical direction of the surface of the vacuum adsorption platform (110) to press the solar cell tightly;
the method is characterized by comprising the following steps:
step S1, the suction nozzle device (310) sucks one solar cell from the first material belt (220) and places the solar cell on the vacuum adsorption platform (110);
step S2, the optical positioning module acquires the position information of the solar cell, and the suction nozzle device (310) sucks the conductive adhesive film from the second material belt (230) and places the conductive adhesive film on the welding area of the solar cell;
step S3, a glue dispensing tube (410) dispenses conductive glue on the welding area of the solar cell to which the conductive glue film is attached;
step S4, the optical positioning module obtains the new position information of the solar cell, the suction nozzle device (310) adsorbs the next solar cell, and the back electrode area is placed on the welding area of the previous solar cell;
step S5, pressing a pressing probe (430) downwards on a welding area at the joint of the two solar cells, and heating to raise the temperature so as to solidify the conductive adhesive film and the conductive adhesive;
step S6, the steps S2 to S5 are circularly performed until the solar cell string is formed.
2. The series welding method for the flexible solar cell according to claim 1, wherein a plurality of solar cell placing grooves (240) are formed in the first material tape (220), and the solar cell placing grooves (240) are uniformly arranged at intervals along the conveying direction of the first material tape (220).
3. The series welding method of the flexible solar cell according to claim 1, wherein the second material tape (230) is provided with a plurality of conductive adhesive film placement grooves (250), and the conductive adhesive film placement grooves (250) are uniformly spaced along the conveying direction of the second material tape (230).
4. The method for series welding of flexible solar cells according to claim 1, wherein the suction cups of the suction nozzle device (310) are soft silicon suction cups.
5. The series welding method for the flexible solar cell according to claim 1, wherein in step S1, the method comprises the following steps:
step S11, heating the vacuum adsorption platform (110) by a heating device, and keeping the temperature constant;
in step S12, the suction nozzle device (310) sucks one solar cell from the first tape (220) and places the solar cell on the vacuum adsorption platform (110).
6. The method for series soldering of flexible solar cells according to claim 1, wherein in step S3, the conductive paste comprises silver paste, solder paste and conductive silicone.
7. The series welding method of the flexible solar cell according to claim 1, wherein in step S5, the temperature of the down-pressure probe (430) is raised by heating, and is controlled to be 100-200 ℃.
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| CN104900762A (en) * | 2015-05-29 | 2015-09-09 | 王家雄 | Automatic film photovoltaic dispensing interconnection system and method |
| CN105870216A (en) * | 2016-04-28 | 2016-08-17 | 乐叶光伏科技有限公司 | Connecting structure of crystalline silicon photovoltaic cell with transparent electrodes |
| CN109679552A (en) * | 2018-11-16 | 2019-04-26 | 云南科威液态金属谷研发有限公司 | A kind of liquid metal conducting resinl and its application |
| CN109585611A (en) * | 2019-01-23 | 2019-04-05 | 苏州纳频工业设备有限公司 | A kind of battery strings composition method and the battery strings type-setting machine using this method |
| CN109860335A (en) * | 2019-01-30 | 2019-06-07 | 合肥敬卫新能源有限公司 | A kind of solar battery series welding structure |
| CN109773840A (en) * | 2019-03-04 | 2019-05-21 | 无锡先导智能装备股份有限公司 | Feeding device |
| CN209487530U (en) * | 2019-04-25 | 2019-10-11 | 东泰高科装备科技有限公司 | Pressing structure and thermal-curable system |
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