CN205970344U - Print two net half tone equipment of no main grid battery piece front electrode - Google Patents
Print two net half tone equipment of no main grid battery piece front electrode Download PDFInfo
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- CN205970344U CN205970344U CN201620847638.3U CN201620847638U CN205970344U CN 205970344 U CN205970344 U CN 205970344U CN 201620847638 U CN201620847638 U CN 201620847638U CN 205970344 U CN205970344 U CN 205970344U
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- printing
- half tone
- grid line
- cell piece
- main grid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
An object of the utility model is to provide a print two net half tone equipment of no main grid battery piece front electrode. Being equipped with the battery piece on the workstation and transporting the platform, the battery piece is placed on the battery piece transports the platform, and the platform top is transported at the battery piece to thin grid line half tone setting, and scraper and the export of conductive silver paste material set up in the top of half tone, thin grid line half tone is equipped with printing department of a plurality of thin grid line, is equipped with main grid line terminal heading brush department or welding reinforcing point printing department or printing department of reinforcing electric connection effect portion at the printing half tone of front other parts of electrode, and the printing half tone of front other parts of electrode and grid line half tone setting carefully are on adjacent position's battery piece transports the platform. The utility model discloses a production technology sets up split type printing half tone, divides twice completion and does not have the printing of main grid line front electrode. The utility model discloses a printing half tone technology of no main grid line solar wafer design, it has very big application space, has the progressive effect of the solar photovoltaic industry that promotes.
Description
Technical field
The invention belongs to technical field of solar, more particularly, to a kind of production equipment and process of solar battery sheet, tool
Saying of body is a kind of double net half tone equipment of printing dereliction grid cell piece front electrode.
Background technology
Global fossil energy crisis and environmental pollution have promoted the fast development of photovoltaic industry.A few days ago, with crystal silicon electricity
Assembly based on the piece of pond occupies more than the 80% of global photovoltaic module market；Crystal-silicon battery slice is developed so far, its cost of manufacture
And generated energy becomes the main restricting factor of its development.In terms of cost of manufacture, the material in occupation of about 60 70% for the silicon materials
Cost, the consumption of silver paste is in occupation of the material cost of about 20-30%.The bold proposition of forefathers no main gate line technology, is to fall
This target inexpensive serious hope the most eager, and this technology also contributes to increase the effective illuminating area of cell piece, improves and sends out
Electricity.But some of which technological difficulties have contained the development of no main grid, such as 1. Chinese patent《The silion cell of no main gate line
Piece》[the patent No.：CN201820762U] in there is situations such as welding difficulty is big, welding is easy to fall off；2. Germany Schmid no
Main grid line technology butt welding machine requires too harsh, thus improve equipment cost；3. Lin Jianwei《No main grid, the high efficiency back of the body connect
Tactile solar energy module, assembly and preparation technology》[the patent No.：CN 104282788 A] there is whole battery sheet material and group
The technological innovation of part material, and technique and quality standard very immature.
Cell piece printing screen plate this on the one hand, many patents have some of oneself to illustrate viewpoints both at home and abroad, but substantially
On all discuss conventional there is main gate line cell piece concentrating.For example, 1. Chinese patent《Photovoltaic cell printing module》[patent
Number：CN202669148U] main gate line that prints out is rounded with the junction of secondary grid line, and contact area therefore between the two increases
Greatly, contact resistance reduces, it is possible to increase photoelectric transformation efficiency.2. Chinese patent《Improved photovoltaic cell printing module》[specially
Profit number：CN202742802U] by assisting grid line so that when a main gate line breaks down, connecting the pair of this fault main gate line
Grid line can be connected in another main gate line by assisting grid line.3. Chinese patent《A kind of crystal silicon solar electricity of enhancement mode
The cell piece of pond four main gate line》[the patent No.：CN204792810U] when cell piece prints secondary grid line appearance broken string, still
The collection of electric current can effectively be carried out, greatly reduce the bad ratio of cell piece EL.
The patent of a lot of cell piece printing screen plates has all related to main gate line cell piece, without dereliction grid line cell piece
Half tone occur.Therefore form a complete production network dereliction grid line cell piece production equipment also be badly in need of research and develop.
Content of the invention
It is an object of the invention to provide the front electricity of a kind of printing low production cost, the dereliction grid cell piece of high generated energy
Double net half tone equipment of pole.
In order to achieve the above object, the technical scheme is that：A kind of printing dereliction grid line cell piece front electrode
Double net half tone equipment, including the outlet of workbench, scraper, thin grid line half tone and conductive silver paste, workbench is provided with cell piece fortune
Send platform, cell piece be placed on cell piece transport platform on, thin grid line half tone be arranged on cell piece transport platform above, scraper and
Conductive silver paste outlet is arranged on the top of half tone, also includes main grid end half tone, and described thin grid line half tone is provided with some thin
At grid line printing, it is provided with main grid end printing at the two ends of main grid end half tone, main grid end half tone and thin grid line
The cell piece that half tone is arranged on adjacent position transports on platform.
Its two ends of dereliction grid cell piece that the present invention is directed to are provided with termination, and non-fully change existing production technology, only
The main gate line of mid portion is removed, reduces the printing of main gate line, simultaneously because main gate line requirement itself is very high, do not print main grid
Line can substantially reduce work quality and require, and reduce the requirement that half tone produces simultaneously, and then reduces production cost.
Also include, with the main grid end half tone strengthening at pad printing, strengthening and being arranged on main grid at pad printing
Between end printing.
Also include electrically connecting, with strengthening, the main grid end half tone that effect portion prints place, strengthen electrical connection effect portion and print
Place is arranged on the line between a pair of main grid end printing.
Also include, with strengthening at pad printing and strengthening the main grid end half tone that electrical connection effect portion prints place, increasing
Between being arranged on the printing of main grid end at fierce contact printing；Strengthen the main grid end net that electrical connection effect portion prints place
Version, strengthen electrical connection effect portion print place be arranged on the printing of a pair of main grid end between line on
Thin grid line half tone is provided with main grid end printing, also includes strengthening electrical connection effect portion half tone and strengthens welding
Point half tone, enhancing electrical connection effect portion half tone is provided with enhancing electrical connection effect portion and prints place, strengthens pad half tone and is provided with enhancing
At pad printing.
Quantity at thin grid line printing is 50-110 root, and the width at thin grid line printing is 60 120 microns.
Printing length best results at main grid end printing are 2-20mm, and optimal printing width best results are 0.2-
1.2mm.
The length that welding strengthens at point printing is 2-10 millimeter, and highly for 0.2-1.2 millimeter, its shape includes rectangle, circle
Shape, ellipse and triangle.
The width that enhancing electrical connection effect portion prints place is 10 50 microns, and highly for 5 40 microns, its shape includes directly
Linear, rhombus, fold-line-shaped or rounding off are linear.
A kind of employing the said equipment produces the technique of dereliction grid cell piece, comprises the following steps：
A) crystalline silicon substrate selects
Preferential quality meets the crystalline silicon substrate of quality standard；Crystalline silicon substrate no open defect is for example：Sliver, unfilled corner etc.；Few
Number carrier lifetime is more than 20 microseconds.
B) crystalline silicon substrate surface wool manufacturing
Silicon chip surface making herbs into wool：Carry out corrosion in silicon chip surface and form scraggly shape, to increase silicon chip to sunlight
Capture rate；
C) diffuse to form PN junction
Diffuse to form PN junction：Silicon chip is carried out with phosphorus or boron adulterates so that cell piece both sides form P-type silicon and N-type silicon respectively；
D) surface coated with antireflection coatings
Silicon chip surface coated with antireflection film：Deposit one layer of silicon nitride film in silicon chip surface, to reduce the reflectance of sunlight；
E) print electrode
Print electrode：Print aluminum back surface field, backplate, thin grid line and main grid line end including to silicon chip both sides respectively
Head, enhancing pad and enhancing electrical connection effect portion.
During the thin grid line of printing front electrode, first the cell piece processing through a-d is put into cell piece and transports on platform,
Conductive silver paste is in the left side of scraper, and moves to left movement with scraper.When scraper pushes, conductive silver paste leaks
Cross silk screen and be attached in crystalline silicon substrate, Excess conductive silver paste is blown off by the then motion of scraper, is then transported by cell piece
Platform transports, and enters next screen painting program；
During the other parts of printing front electrode, conductive silver paste in the left side of scraper, and with scraper to left movement
Mobile.When scraper pushes, conductive silver paste leaks through silk screen and is attached in crystalline silicon substrate thus completing main grid end
Electrical connection effect portion prints place and/or welding strengthens printing at point printing with strengthening, and then the motion of scraper is by Excess conductive
Silver paste blows off, then transports platform by cell piece and transports, and enters next sintering circuit.Conductive silver paste exports conductive silver paste
Material outlet
The present invention solves the typography of current battery piece front electrode and screen mesh printing plate can not meet our no main grids
The production of line cell piece is it is therefore desirable to propose the printing screen plate of special dereliction grid line cell piece.
Additionally, the main gate line of conventional batteries piece front electrode and thin grid line are higher to printing quality requirement, therefore to silk
Net requires higher；But in our dereliction grid line cell piece, because there is no main gate line, the only printing quality to thin grid line
Require somewhat higher, less demanding to some printing positions other, so reducing silk screen manufacture difficulty, thus reducing
The cost of manufacture of screen mesh printing plate.
The present invention is no main gate line solar battery sheet design, and it has very big application space, has promotion solar energy
The effect of photovoltaic industry progress.
Brief description
The thin grid line screen structure schematic diagram of Fig. 1 embodiment of the present invention 1；
Fig. 2 embodiment of the present invention 1 dereliction grid end head screen structure schematic diagram；
The dereliction grid end head screen structure schematic diagram with strengthening pad for Fig. 3 embodiment of the present invention 1；
The dereliction grid end head screen structure schematic diagram with strengthening electrical connection effect portion for Fig. 4 embodiment of the present invention 1；
The dereliction grid end head screen structure with strengthening pad and enhancing electrical connection effect portion for Fig. 5 embodiment of the present invention 1 shows
It is intended to；
The thin grid line screen structure schematic diagram of Fig. 6 embodiment of the present invention 2；
Fig. 7 embodiment of the present invention 2 strengthens pad screen structure schematic diagram；
Fig. 8 embodiment of the present invention 2 strengthens electrical connection effect portion screen structure schematic diagram；
Fig. 9 present device cell piece production section structural representation；
Figure 10 dereliction of the present invention grid cell chip architecture schematic diagram；
Figure 11 dereliction of the present invention grid cell chip architecture schematic diagram；
Figure 12 dereliction of the present invention grid cell chip architecture schematic diagram；
Figure 13 dereliction of the present invention grid cell chip architecture schematic diagram；
Figure 14 dereliction of the present invention grid cell chip architecture schematic diagram；
Figure 15 dereliction of the present invention grid cell chip architecture schematic diagram；
In figure：1 main grid end half tone；2 thin grid line half tones；3 enhancing pad half tones；4 strengthen electrical connection effect portion net
Version；The 5 thin grid line half tones with main grid end；6 scrapers；7 workbench；8 dereliction grid cell pieces；9 carry enhancing pad printing
The main grid end half tone at place；10 carry the main grid end half tone that enhancing electrical connection effect portion prints place；11 carry enhancing weldering
At contact printing and enhancing electrical connection effect portion prints the main grid end half tone at place.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples
Embodiment 1
A kind of double net half tone equipment of printing dereliction grid line cell piece front electrode, including workbench 7, scraper 6, thin grid line
Half tone 2 and conductive silver paste outlet, workbench 7 is provided with cell piece and transports platform, and it is flat that cell piece 8 is placed on cell piece transport
On platform, thin grid line half tone 2 is arranged on cell piece and transports above platform, and scraper 6 and conductive silver paste outlet are arranged on the upper of half tone
Side it is characterised in that：Also include main grid end half tone 1, described thin grid line half tone 2 is provided with 201 at some thin grid line printings,
The two ends of main grid end half tone 1 are provided with 101 at main grid end printing, and main grid end half tone 1 and thin grid line half tone 2 are arranged
Cell piece in adjacent position transports on platform.
As Figure 1-5
The operation that prints electrode for first adopts thin grid line half tone 2, and it is the thin grid line printing process of tradition it is only necessary to ensure symbol
Close thin grid line production requirement, simultaneously as there is no the printing work of main gate line, the better control of its quality, half tone makes
Simply, low cost.
Second prints electrode operation using main grid end half tone 1,9,10,11, selects different nets according to actual needs
Version, strengthens pad and enhancing electrical connection effect portion can be printed onto on cell piece.
Also include with the main grid end half tone 9 strengthening at pad printing, at enhancing pad printing, 301 are arranged on
Between 101 at main grid end printing.
Also include electrically connecting, with strengthening, the main grid end half tone 10 that effect portion prints place, strengthen electrical connection effect portion print
At brush 401 be arranged on 101 at a pair of main grid end printing between line on.
Also include electrically connecting, with strengthening at pad printing and strengthening, the main grid end half tone 11 that effect portion prints place,
Strengthen pad printing at 301 be arranged on 101 at main grid end printing between；Strengthen the main grid that electrical connection effect portion prints place
End half tone 10, strengthen electrical connection effect portion print place 401 be arranged on 101 at a pair of main grid end printing between line
On
Thin grid line half tone 2 is provided with 101 at main grid end printing, its be with main grid end printing at thin grid line net
Version 5, also includes strengthening electrical connection effect portion half tone 4 and strengthens pad half tone 3, strengthens electrical connection effect portion half tone 4 and is provided with increasing
Print place 401 in forceful electric power connection effect portion, strengthens pad half tone 3 and is provided with 301 at enhancing pad printing.
At thin grid line printing, 2 quantity is 50-110 root, and at thin grid line printing, 2 width is 60 120 microns.
At main grid end printing, 101 printing length best results are 2-20mm, and optimal printing width best results are
0.2-1.2mm.
Welding strengthen point printing at 301 length be 2-10 millimeter, width be 0.2-1.2 millimeter, its shape include rectangle,
Circle, oval and triangle.
The width that enhancing electrical connection effect portion prints place 401 is 60-120 micron, highly for 10 40 microns, its shape bag
Include linear, rhombus, fold-line-shaped or rounding off linear.
A kind of employing the said equipment produces the technique of dereliction grid cell piece, comprises the following steps：
F) crystalline silicon substrate selects
Preferential quality meets the crystalline silicon substrate of quality standard；Crystalline silicon substrate no open defect is for example：Sliver, unfilled corner etc.；Few
Number carrier lifetime is more than 20 microseconds.
G) crystalline silicon substrate surface wool manufacturing
Silicon chip surface making herbs into wool：Carry out corrosion in silicon chip surface and form scraggly shape, to increase silicon chip to sunlight
Capture rate；
H) diffuse to form PN junction
Diffuse to form PN junction：Silicon chip is carried out with phosphorus or boron adulterates so that cell piece both sides form P-type silicon and N-type silicon respectively；
I) surface coated with antireflection coatings
Silicon chip surface coated with antireflection film：Deposit one layer of silicon nitride film in silicon chip surface, to reduce the reflectance of sunlight；
J) print electrode
Print electrode：Print aluminum back surface field, backplate, thin grid line and main grid line end including to silicon chip both sides respectively
Head, enhancing pad and enhancing electrical connection effect portion.
During the thin grid line of printing front electrode, first the cell piece processing through a-d is put into cell piece and transports on platform,
For example shown in accompanying drawing, conductive silver paste is in the left side of scraper (7), and moves to left movement with scraper.Push in scraper
When, conductive silver paste leaks through silk screen and is attached in crystalline silicon substrate, and Excess conductive silver paste is blown off by the then motion of scraper,
Then transport platform by cell piece to transport, enter next screen painting program.
Printing front electrode other parts when, such as shown in accompanying drawing, conductive silver paste in the left side of scraper (7), and with
Scraper to move to left movement.When scraper pushes, conductive silver paste leak through silk screen and be attached in crystalline silicon substrate from
And completing the printing of main grid end, Excess conductive silver paste is blown off by the then motion of scraper, then transports platform by cell piece
Transport, enter next sintering circuit conductive silver paste outlet.
Embodiment 2
As shown in figs 6-8,
Using the thin grid line half tone 5 with main grid end, it is the thin grid line printer of tradition to the operation that prints electrode for first
, it is only necessary to ensure compliance with thin grid line production requirement, simultaneously as not having the printing work of main gate line, its quality is more for sequence
Good control, half tone makes simple, low cost.
Second prints electrode operation using strengthening pad half tone 3 and/or strengthen electrical connection effect portion half tone 4, according to
It is actually needed the different half tone of selection, strengthen pad and enhancing electrical connection effect portion can be printed onto on cell piece.
Other are with embodiment 1.
Certainly, the above is only preferred embodiment of the present utility model it is impossible to be considered for limiting to utility model
Scope of embodiments.This utility model is also not limited to the example above, and those skilled in the art are in this practicality
The impartial change made in new essential scope and improvement etc., all should belong to this utility model patent covering scope.
Claims (9)
1. a kind of double net half tone equipment of printing dereliction grid line cell piece front electrode, including workbench (7), scraper (6), thin grid
Gauze version (2) and conductive silver paste outlet, workbench (7) is provided with cell piece and transports platform, and cell piece (8) is placed on battery
Piece transports on platform, and thin grid line half tone (2) is arranged on cell piece and transports above platform, and scraper (6) and conductive silver paste outlet set
Put above half tone it is characterised in that：Also include main grid end half tone (1), described thin grid line half tone (2) is provided with some thin
At grid line printing (201), it is provided with main grid end printing (101) at the two ends of main grid end half tone (1), main grid end
Half tone (1) and thin grid line half tone (2) are arranged on the cell piece transport platform of adjacent position.
2. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
Also include with main grid end half tone (9) strengthening at pad printing, strengthen (301) at pad printing and be arranged on main grid
At end printing between (101).
3. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
Also include electrically connecting, with strengthening, main grid end half tone (10) that effect portion prints place, strengthen electrical connection effect portion and print place
(401) it is arranged on the line between (101) at a pair of main grid end printing.
4. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
Also include, with strengthening at pad printing and strengthening main grid end half tone (11) that electrical connection effect portion prints place, strengthening weldering
At contact printing, (301) are arranged at main grid end printing between (101)；Strengthen the main gate line that electrical connection effect portion prints place
Termination half tone (10), strengthens electrical connection effect portion and prints place (401) being arranged at a pair of main grid end printing between (101)
On line.
5. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
Thin grid line half tone (2) is provided with main grid end printing (101), its be with main grid end printing at thin grid line half tone
(5), also include strengthening electrical connection effect portion half tone (4) and strengthen pad half tone (3), strengthen electrical connection effect portion half tone (4)
It is provided with enhancing electrical connection effect portion and prints place 401, strengthen pad half tone (3) and be provided with enhancing pad printing (301).
6. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
At thin grid line printing, the quantity of (2) is 50-110 root, and at thin grid line printing, the width of (2) is 60 120 microns.
7. according to claim 1 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
At main grid end printing, the printing length best results of (101) are 2-20mm, and optimal printing width best results are 0.2-
1.2mm.
8. according to claim 2 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
Welding strengthen point printing at (301) length be 2-10 millimeter, width be 0.2-1.2 millimeter, its shape include rectangle, circle,
Ellipse and triangle.
9. according to claim 3 printing dereliction grid line cell piece front electrode double net half tone equipment it is characterised in that：
The width that enhancing electrical connection effect portion prints place (401) is 60-120 micron, and highly for 10 40 microns, its shape includes straight line
Shape, rhombus, fold-line-shaped or rounding off are linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847638.3U CN205970344U (en) | 2016-08-05 | 2016-08-05 | Print two net half tone equipment of no main grid battery piece front electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620847638.3U CN205970344U (en) | 2016-08-05 | 2016-08-05 | Print two net half tone equipment of no main grid battery piece front electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205970344U true CN205970344U (en) | 2017-02-22 |
Family
ID=58029292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620847638.3U Expired - Fee Related CN205970344U (en) | 2016-08-05 | 2016-08-05 | Print two net half tone equipment of no main grid battery piece front electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205970344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685533A (en) * | 2016-08-05 | 2018-02-13 | 青岛瑞元鼎泰新能源科技有限公司 | A kind of double net half tone device and method for printing dereliction grid cell piece front electrode |
-
2016
- 2016-08-05 CN CN201620847638.3U patent/CN205970344U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685533A (en) * | 2016-08-05 | 2018-02-13 | 青岛瑞元鼎泰新能源科技有限公司 | A kind of double net half tone device and method for printing dereliction grid cell piece front electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20200805 |