CN104526177A - Photovoltaic cell piece welding device and welding technology thereof - Google Patents
Photovoltaic cell piece welding device and welding technology thereof Download PDFInfo
- Publication number
- CN104526177A CN104526177A CN201410845530.6A CN201410845530A CN104526177A CN 104526177 A CN104526177 A CN 104526177A CN 201410845530 A CN201410845530 A CN 201410845530A CN 104526177 A CN104526177 A CN 104526177A
- Authority
- CN
- China
- Prior art keywords
- welding
- photovoltaic cell
- scaling powder
- face
- shady face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
Abstract
The invention discloses a photovoltaic cell piece welding device and a welding technology of the photovoltaic cell piece welding device. The welding technology comprises the steps that at least two photovoltaic cell pieces are provided, and a flux is only sprayed on the backlight faces of the photovoltaic cell pieces; a welding strip is provided, and only one face of the welding strip is coated with a flux; the welding strip is connected to the two photovoltaic cell pieces. The mode of combining the means of spraying electrodes of the backlight faces of the cell pieces and coating the bottom face of the welding strip is adopted, a flux does not exist on the top face of the welding strip, the problem of grid line corrosion caused by flux residues on light-receiving faces of the cell pieces is solved, and the problems that the top face of the welding strip is blacked under the influences of ultraviolet rays, the temperature and the like, and reliability is poor are solved.
Description
Technical field
The application relates to photovoltaic module and manufactures field, particularly relates to a kind of photovoltaic cell pattern welding equipment and welding and assembling technics thereof.
Background technology
In current photovoltaic industry, the mode of automatic welding machine supply scaling powder mainly contains two kinds: one is welding strip soaking formula, fill in the container of scaling powder through one in advance by welding, welding is soaked in scaling powder completely, thus scaling powder is attached to welding surface, and then welding is welded on the main gate line electrode of photovoltaic cell sensitive surface; Another is jet printing type, on the sensitive surface of photovoltaic cell and the electrode of shady face, namely sprays scaling powder all in advance, and then be welded on photovoltaic cell by welding.
These two kinds of welding manners easily cause the main gate line electrode edge region fluxing agent residue problem at cell piece sensitive surface, and then the problem such as reliability and generating efficiency of assembly can be affected, such as, make EVA bonding with cell piece bad, thus affect the reliability of assembly.And use nozzle by the mode of scaling powder spraying on cell piece main gate line electrode, scaling powder is easily splashed to the region beyond cell piece main gate line electrode, such scaling powder easily corrodes the thin grid line of the cell piece be connected with main gate line electrode, thus affects assembly reliability and the low problem of generating efficiency.
Summary of the invention
The object of the application is to provide a kind of photovoltaic cell pattern welding equipment and welding and assembling technics thereof, to improve the deficiency of welding strip soaking formula in prior art, cell piece jet printing type two kinds of modes.
For achieving the above object, the application provides a kind of photovoltaic cell welding and assembling technics, comprising:
At least two panels photovoltaic cell is provided, and only to the shady face spraying scaling powder of photovoltaic cell;
One welding is provided, and only scaling powder is smeared to the one side of described welding;
Welding is connected to respectively described two photovoltaic cells.
Further, only to the shady face of photovoltaic cell spraying scaling powder, specifically comprise: by the backlight placed face down of photovoltaic cell, utilize nozzle by scaling powder spraying on the back electrode of described shady face.
Further, only scaling powder is smeared to the one side of described welding, specifically comprise: by welding through a scaling powder application device, utilize scaling powder application device scaling powder to be only applied in the bottom surface of welding, and keep the end face of welding not adhere to scaling powder.
Further, welding is connected to respectively described two photovoltaic cells, specifically comprises:
The bottom surface of the welding being coated with scaling powder is mounted on the sensitive surface of a photovoltaic cell;
The shady face end face of the welding not being attached with scaling powder being mounted to another photovoltaic cell is connected with the back electrode on shady face.
The application also provides a kind of photovoltaic cell pattern welding equipment, comprises towards the setting of photovoltaic cell shady face and passes to the Welding compound spraying coater of shady face spraying scaling powder, the welding draw off gear being wound with welding and the described welding of confession and the one side of welding smeared to the scaling powder application device of scaling powder.
Further, described scaling powder application device comprises one and is contained with the container of scaling powder and is placed in the sponge of described vessel surface, and the surface of described container is provided with the groove holding described sponge.
Further, described sponge to be placed in described groove and towards the bottom surface of described welding, to smear scaling powder to bottom surface.
The application adopts the spraying of cell piece shady face electrode, welding coated on bottom side is smeared to the mode that these two kinds of means combine, avoid on welding end face and cell piece sensitive surface and be attached with scaling powder, solve the grid line etching problem that cell piece sensitive surface brings because of welding assisted agent residuals, also effectively prevent welding end face affects by ultraviolet, temperature etc. and turns black and the problem of poor reliability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the application's photovoltaic cell welding and assembling technics.
Fig. 2 is the connected mode schematic diagram of welding and photovoltaic cell in the application's photovoltaic cell welding and assembling technics.
Fig. 3 is the scheme of installation of welding in the application's photovoltaic cell welding and assembling technics.
Fig. 4 is the application's photovoltaic cell welding and assembling technics top view operationally.
Fig. 5 is the structural representation of scaling powder application device in the application's photovoltaic cell pattern welding equipment.
Detailed description of the invention
In order to make the object of the application, technical scheme and advantage clearly, below in conjunction with the drawings and specific embodiments, the application is described in detail.
The application discloses a kind of photovoltaic cell welding and assembling technics, comprising:
s101: at least two panels photovoltaic cell is provided, and the shady face spraying scaling powder to photovoltaic cell;
Shown in Fig. 2, Fig. 3, described two photovoltaic cells 10 for being disposed adjacent to each other, for mutual serial connection, described photovoltaic cell 10 be provided with sensitive surface 11 and shady face 12, sensitive surface 11 is provided with main gate line electrode 13, and shady face 12 is provided with backplate 14.In the spraying process of scaling powder, adopt nozzle 30 only to carry out scaling powder spraying to the shady face 12 of photovoltaic cell 10, and described scaling powder is only sprayed in the backplate 14 on shady face, and scaling powder is not sprayed to the sensitive surface 11 of photovoltaic cell 10.
During spraying, need first described photovoltaic cell to be placed on station, and its shady face 12 is arranged down, as shown in Figure 3, then the backplate 14 on nozzle 30 pairs of shady faces 12 is adopted to carry out scaling powder spraying operation, after spraying, the direction of motion along with conveyer belt is transported to next station by photovoltaic cell, waits for and being connected with welding 20.
: a welding is provided, and scaling powder is smeared to the one side of described welding;
Specifically, only to a surface smear scaling powder of welding 20, and keep intact and do not smear in another surface, and in the application's preferred forms, described welding 20 is provided with the end face 21 and bottom surface 22 that are oppositely arranged.Because welding 20 will be connected in series two adjacent photovoltaic cells 10 simultaneously, so, the sensitive surface 11 that the part of described welding 20 is installed on one of them photovoltaic cell is connected with the main gate line electrode 15 on sensitive surface 11, the shady face 12 that another part of welding 20 is then installed on adjacent photovoltaic cell 10 is connected with the backplate 14 on shady face, therefore, when adjacent two photovoltaic cells connect, what be connected with the sensitive surface 11 of photovoltaic cell is the bottom surface 22 of welding, what be connected with the shady face 12 of another adjacent photovoltaic cell is then the end face 21 of welding, and in present embodiment, adopt scaling powder application device 40(such as: the sponge of band fluxing agent) scaling powder is smeared to described welding, and scaling powder is only applied on the bottom surface 22 of described welding, and end face 21 is not smeared, welding can be welded to connect with the main gate line electrode 15 on photovoltaic cell sensitive surface, and the end face 21 of welding can be connected to backplate 14 on adjacent photovoltaic cell sheet shady face without the need to smearing scaling powder, reason is that backplate 14 coats scaling powder by nozzle 30.
The shady face of welding will move to installation station after smearing, and correspondingly with the backplate of photovoltaic cell arrange.This mode of smearing, can effectively avoid welding end face 21 to cause when being exposed to the sun in long-time open air turning black thus affecting the problem such as product reliability, aesthetic property after smearing scaling powder.
: welding is connected to respectively described two photovoltaic cells.
Specifically, the sensitive surface 11 surface (i.e. bottom surface 22) welding 20 being coated with scaling powder being soldered to one of them photovoltaic cell is connected with the main gate line electrode welding on sensitive surface 11, and another surface (i.e. end face 21) of welding 20 and the backplate 14 on another photovoltaic cell shady face 12 be welded to connect.
In connection procedure, the end face 21 of welding is connected to the backplate 14 of photovoltaic cell, and one end of welding extends out to the below of adjacent photovoltaic cell sheet further, make the welding bottom surface 22 of painting fluxing agent towards adjacent photovoltaic cell sheet, then the sensitive surface 11 of another photovoltaic cell is mounted to downwards on the bottom surface 22 of welding, makes welding bottom surface 22 and the main gate line Electrode connection on photovoltaic cell sensitive surface 11.
From S101 to S103, the application is in the adding procedure of scaling powder, adopt and cell piece shady face 12 is sprayed, welding bottom surface 22 is smeared to the mode that these two kinds of means combine, welding end face 21 is made to there is not scaling powder, solve the grid line etching problem that cell piece sensitive surface 11 brings because of welding assisted agent residuals, also effectively prevent welding end face 21 to affect by ultraviolet, temperature etc. and the problem of turning black, meanwhile, also improve the connection reliability between cell piece and EVA packaging adhesive film.
In addition, the application also discloses a kind of photovoltaic cell pattern welding equipment, comprising: Welding compound spraying coater 30, scaling powder application device 40 and welding draw off gear 50, can shown in composition graphs 4.
Ginseng Fig. 3 and Fig. 4 shown in, described Welding compound spraying coater 30 is provided with the nozzle of setting corresponding with photovoltaic cell backplate 14, for by scaling powder spraying in photovoltaic cell backplate 14.Described welding draw off gear 50 is provided with a spool, for being wound around welding 20, and in normal operation process, constantly discharge welding 20, welding 20 is constantly carried to described scaling powder application device 40, and described scaling powder application device 40 is only smeared one of them surface of described welding 20.
In the application's preferred forms, shown in please refer to the drawing 5, described scaling powder application device 40 comprises one and is contained with the container 41 of scaling powder A and is placed in the sponge 42 of described vessel surface, the surface of described container 41 is provided with the groove 43 of the described sponge 42 of some accommodations, described sponge 42 to be placed in described groove 43 and towards the bottom surface 22 of described welding, for drawing the scaling powder A in described container 41, and the bottom surface 22 of described welding contacts with the sponge 42 in described groove 43 when through described scaling powder application device 40, thus the bottom surface 22 of welding is made to be attached with scaling powder.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only the illustrating of feasibility embodiment for the application; they are also not used to the protection domain limiting the application, and the equivalent implementations that all the application's of disengaging skill spirit is done or change all should be included within the protection domain of the application.
Claims (7)
1. a photovoltaic cell welding and assembling technics, is characterized in that: comprising:
At least two panels photovoltaic cell is provided, and only to the shady face spraying scaling powder of photovoltaic cell;
One welding is provided, and only scaling powder is smeared to the one side of described welding;
Welding is connected to respectively described two photovoltaic cells.
2. photovoltaic cell welding and assembling technics as claimed in claim 1, it is characterized in that: only to the shady face spraying scaling powder of photovoltaic cell, specifically comprise: by the backlight placed face down of photovoltaic cell, utilize nozzle by scaling powder spraying on the back electrode of described shady face.
3. photovoltaic cell welding and assembling technics as claimed in claim 2, it is characterized in that: only scaling powder is smeared to the one side of described welding, specifically comprise: by welding through a scaling powder application device, utilize scaling powder application device scaling powder to be only applied in the bottom surface of welding, and keep the end face of welding not adhere to scaling powder.
4. photovoltaic cell welding and assembling technics as claimed in claim 3, is characterized in that: welding is connected to respectively described two photovoltaic cells, specifically comprises:
The bottom surface of the welding being coated with scaling powder is mounted on the sensitive surface of a photovoltaic cell;
The shady face end face of the welding not being attached with scaling powder being mounted to another photovoltaic cell is connected with the back electrode on shady face.
5. a photovoltaic cell pattern welding equipment, is characterized in that: comprise towards the setting of photovoltaic cell shady face and pass to the Welding compound spraying coater of shady face spraying scaling powder, the welding draw off gear being wound with welding and the described welding of confession and the one side of welding smeared to the scaling powder application device of scaling powder.
6. photovoltaic cell pattern welding equipment as claimed in claim 5, is characterized in that: described scaling powder application device comprises one and is contained with the container of scaling powder and is placed in the sponge of described vessel surface, and the surface of described container is provided with the groove holding described sponge.
7. photovoltaic cell pattern welding equipment as claimed in claim 6, is characterized in that: described sponge to be placed in described groove and towards the bottom surface of described welding, to smear scaling powder to bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845530.6A CN104526177B (en) | 2014-12-31 | 2014-12-31 | Photovoltaic cell pattern welding equipment and its welding and assembling technicses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410845530.6A CN104526177B (en) | 2014-12-31 | 2014-12-31 | Photovoltaic cell pattern welding equipment and its welding and assembling technicses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526177A true CN104526177A (en) | 2015-04-22 |
| CN104526177B CN104526177B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410845530.6A Active CN104526177B (en) | 2014-12-31 | 2014-12-31 | Photovoltaic cell pattern welding equipment and its welding and assembling technicses |
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Cited By (2)
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| CN117655456A (en) * | 2023-12-04 | 2024-03-08 | 扬州中环半导体科技有限公司 | Photovoltaic cell welding equipment and welding process thereof |
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| Publication number | Publication date |
|---|---|
| CN104526177B (en) | 2017-12-19 |
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Address after: 215300 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Applicant after: Artes sunshine Power Group Co. Ltd. Applicant after: Changshu Canadian Solar Inc. Address before: 215300 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Applicant before: Canadian (China) Investment Co., Ltd. Applicant before: Changshu Canadian Solar Inc. |
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Effective date of registration: 20180420 Address after: No. 348, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: Suzhou etesi Sunshine Energy Technology Co. Ltd. Address before: 215300 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199 Co-patentee before: Changshu Canadian Solar Inc. Patentee before: Artes sunshine Power Group Co. Ltd. |
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Effective date of registration: 20210220 Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: CSI Cells Co.,Ltd. Patentee after: Atlas sunshine Power Group Co.,Ltd. Address before: 215300 no.348 Lushan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU CANADIANSOLAR ENERGY TECHNOLOGY Co.,Ltd. |
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