CN105336812B - The cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece - Google Patents
The cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece Download PDFInfo
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- CN105336812B CN105336812B CN201510562866.6A CN201510562866A CN105336812B CN 105336812 B CN105336812 B CN 105336812B CN 201510562866 A CN201510562866 A CN 201510562866A CN 105336812 B CN105336812 B CN 105336812B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910021419 crystalline silicon Inorganic materials 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
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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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention relates to a kind of cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece, for the solar battery sheet of full wafer to be cut into small pieces, including step：Set the cutting parameter of solar energy laser scribing means；The face-up vacuum suction of solar battery sheet is fixed on the right angle cuts platform of solar energy laser scribing means；The cutting width set parallel to bus bar confluxes the integral multiple of line width as one group of both positive and negative polarity；Cut with the thickness that depth of cut is less than solar battery sheet；Indicate both positive and negative polarity；Break piece.The present invention not only can effectively lift the yields of solar battery sheet, lift the production efficiency of solar battery sheet, can also avoid mistaking the both positive and negative polarity of solar battery sheet, and solar cell module is made for follow-up high-speed and high-efficiency high-quality and provides reliable guarantee.
Description
Technical field
The present invention relates to the finished product of solar cell module or semi-finished product processing technique field, more particularly to a kind of full back of the body electricity
The cutting method of pole contact crystalline silicon solar cell comprising piece.
Background technology
Solar battery sheet is general to be provided with navy blue antireflection layer using crystalline silicon as base material in the front of base material,
Front is provided with intensive bus bar, and the back side is provided with conductive layer, to collect the electric energy that sunshine conversion is produced, and is collected to master
On bus bar.
Normally, according to user to the appearance and size of solar cell module and the difference of unit for electrical property parameters, it is necessary to will be whole
The solar battery sheet of block cuts into the solar battery sheet of small pieces, and then welding series connection is attached on pcb board again, is formed available
Solar cell module, so, how quick effectively cutting solar battery sheet turns into a technical issues that need to address.And
The solar cell piece preparation method of the use back side cutting of current main flow, is easily caused bus bar and is destroyed or cut lengths phase
To fixation, cause yields and utilization rate not high, directly contribute waste of material and cost increase.
The content of the invention
It is a primary object of the present invention to there is provided a kind of cutting side of all back-contact electrodes contact crystalline silicon solar cell comprising piece
Method, can cause the cutting of solar panel becomes simple, and can effectively improve the yields and profit of solar battery sheet
With rate.
For achieving the above object, the present invention uses following technical scheme.
The present invention provides a kind of cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece, for by full wafer too
Positive energy cell piece cuts into the solar battery sheet of small pieces, comprises the following steps：
Commissioning device, sets the cutting parameter of laser scribing means；
It is accurately positioned, the right angle that the face-up vacuum suction of solar battery sheet is fixed on solar energy laser scribing means is cut
Cut on platform；
Cut lengths are set, cutting track is divided into parallel conflux wire cutting and wire cutting of vertically confluxing, it is parallel when setting
Conflux wire cutting when, cutting width is set as that one group of both positive and negative polarity confluxes the integral multiple of line width, when setting vertical wire cutting of confluxing
When, then cutting width is set according to product actual requirement；
Cutting, makes the depth of cut of every cutting track be less than the thickness of solar battery sheet；
Both positive and negative polarity is indicated, a line perpendicular to bus bar is drawn close to perpendicular cuts track at the back side of solar battery sheet
Bar, this lines are substantially partial to one side of the small pieces cell piece of well cutting, to indicate negative or positive electrode of the side as cell piece；
Piece is broken, the solar battery sheet not completely cut through is broken disconnected using craft, required solar battery sheet is obtained, breaks
Piece direction is to be exerted a force from the back side of solar battery sheet to front.
In the above method, the depth of cut is 2nd/1st to three/3rd of solar battery sheet thickness.
After being located at cutting step in the above method, the step of sign both positive and negative polarity, break piece step before.
The present invention cuts solar battery sheet using the above method, not only can effectively lift the non-defective unit of solar battery sheet
Rate and utilization rate, can also avoid mistaking the both positive and negative polarity of solar battery sheet, be follow-up high-speed and high-efficiency high-quality make the sun
Can the reliable quality assurance of battery component offer.
Brief description of the drawings
Fig. 1 is the structural representation of solar battery sheet in the embodiment of the present invention.
Fig. 2 is the structural representation of small pieces solar battery sheet after cutting in the embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Technical scheme is described in detail below with reference to drawings and the specific embodiments, to become apparent from, intuitively
Understand the invention essence of the present invention.
The present embodiment provides a kind of cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece, by shown in Fig. 1
The all back-contact electrodes contact crystalline silicon solar cell comprising piece 10 of full wafer cut into the solar battery sheets 20 of the small pieces shown in Fig. 2,
Further to make solar cell module.The front of all back-contact electrodes contact crystalline silicon solar cell comprising piece 10 for photosurface and
Antireflection layer, the back side is provided with the bus bar 11 of dense arrangement, and these bus bars 11 are in both positive and negative polarity cross arrangement, for collecting too
Positive energy cell piece 10 changes solar energy produced electric energy, and the conductive both positive and negative polarity for being collected to the edge of solar battery sheet 10
Pad（It is not shown）On.
The present embodiment is cut using laser scribing means, and from the front cutting of solar battery sheet 10, can be protected
Bus bar 11 is not damaged by.The cutting method of solar battery sheet 20 comprises the following steps：
First, commissioning device, that is, debug laser scribing means, the cutting parameter of setting laser scribing means, including laser beam
Focal length, the frequency of laser beam, the parameter such as the electric current of Laser Power Devices.
Secondly, it is accurately positioned, i.e., inhales the band vacuum that solar battery sheet 10 is face-up fixed on solar energy scribing machine
On attached right angle cuts platform, to ensure the accuracy and cutting accuracy of cutting position, the present embodiment is carried out using right angle positioning mode
It is accurately positioned.
Then, cut lengths are set, that is, set cutting track, cutting track, which is divided into equality and confluxed, wire cutting and vertically to conflux
Wire cutting.When setting parallel 10 cutting track of bus bar, cutting width is set as the whole of one group of width of both positive and negative polarity bus bar 11
Several times, even if the width of the every piece of cell piece 20 cut down is the integral multiple of one group of width of both positive and negative polarity bus bar 11, and contain
There is the both positive and negative polarity bus bar 11 of identical group of number, and arrangement mode is identical.When setting vertical 11 cutting track of bus bar, cutting
Width is set according to the actual requirement of product, may finally obtain the cell piece 20 of dimension.
During cutting, the depth of cut of every cutting track is set to be less than the thickness of solar battery sheet 10, in case high temperature is too
The PN sections of positive energy cell piece puncture and short circuit causes solar battery sheet 10 and solar battery sheet 20 to be scrapped.In the present embodiment
Depth of cut selection is 2nd/1st to three/3rd of the thickness of solar battery sheet 10, finds, not only may be used through actual tests
So that the PN of solar battery sheet saves not breakdown short circuit, and the piece of breaking easily carried out subsequently is operated.
When all cutting tracks all after the completion of, the solar battery sheet 20 for cutting into small pieces still connects together, at this moment, can be with
The both positive and negative polarity of the bus bar 11 of each cell piece 20 is clearly recognized, because solar battery sheet 20 is in symmetric shape, in order to
Prevent from breaking the both positive and negative polarity of None- identified solar battery sheet 20 after piece, the present embodiment is substantially leaned at the back side of solar battery sheet 20
Nearly one side, a line 21 perpendicular to or substantially perpendicular to bus bar 11 is drawn in perpendicular cuts track, with indicating solar battery slice 20
The both positive and negative polarity at the end.For example, if the left side of solar battery sheet 10 is positive pole, the right is negative pole, then cuts the sun of formation
The left side of energy cell piece is positive pole, and the right is negative pole, now, if what is indicated is positive pole, in the cutting rail close to the left side
A line 21 is drawn at mark, if what is indicated is negative pole, a line 21 is being drawn at the cutting track on the right.
After above-mentioned steps are completed, piece just can be broken manually, specific method is not completely cut through above-mentioned using craft
Cell piece carry out break disconnected, break piece direction be from the back side of solar battery sheet 10 to front exert a force, make bus bar 11 in tension force
In the presence of natural fracture.Solar battery sheet under breaking is required specification.
The step of above-mentioned sign both positive and negative polarity be preferably located at cutting step after, break piece step before, if this is because, should
Step is located at before cutting step, due to that can not determine the particular location on solar battery sheet 20 of cutting track in advance,
So can not setting-out in advance.If the step is broken after piece after piece step is broken, the positive and negative of solar battery sheet 20 is easy to
Mix up and confuse, unless often break a piece of just in one line 21 of picture thereon, and this obviously can reduce and break piece efficiency, also easily error.
In summary, the present invention prepares solar battery sheet using the above method, not only can effectively lift cell piece
Yields, lifts the production efficiency of solar battery sheet, can also avoid mistaking the both positive and negative polarity of cell piece, be follow-up high-speed and high-efficiency
Make to high-quality solar cell module and reliable ensure is provided.
The preferred embodiments of the present invention are the foregoing is only, its scope of the claims is not thereby limited, it is every to utilize the present invention
Equivalent structure or equivalent flow conversion that specification and accompanying drawing content are made, are directly or indirectly used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (1)
1. a kind of cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece, for the solar battery sheet of full wafer to be cut
Small pieces are cut into, are comprised the following steps：
Commissioning device, sets the cutting parameter of laser scribing means；
It is accurately positioned, the right angle cuts that the face-up vacuum suction of solar panel is fixed on solar energy laser scribing means is put down
On platform；
Cut lengths are set, cutting track is divided into parallel conflux wire cutting and wire cutting of vertically confluxing, are confluxed when setting is parallel
During wire cutting, cutting width is set as that one group of both positive and negative polarity confluxes the integral multiple of line width, when set it is vertical conflux wire cutting when, then
Cutting width is set according to product actual requirement；
Cutting, makes the depth of cut of every cutting track be less than the thickness of solar panel；
Both positive and negative polarity is indicated, the lines perpendicular to bus bar are drawn close to perpendicular cuts track at the back side of solar battery sheet,
This lines is substantially partial to one side of the small pieces cell piece of well cutting, to indicate negative or positive electrode of the side as cell piece；
Piece is broken, the cell piece not completely cut through is broken disconnected using craft, required cell piece is obtained, it is from solar energy to break piece direction
The back side of cell panel exerts a force to front;Wherein：
The depth of cut is 2nd/1st to three/3rd of solar battery sheet thickness；
The step of sign both positive and negative polarity be located at cutting step after, break piece step before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562866.6A CN105336812B (en) | 2015-09-08 | 2015-09-08 | The cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510562866.6A CN105336812B (en) | 2015-09-08 | 2015-09-08 | The cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105336812A CN105336812A (en) | 2016-02-17 |
| CN105336812B true CN105336812B (en) | 2017-11-07 |
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| CN201510562866.6A Active CN105336812B (en) | 2015-09-08 | 2015-09-08 | The cutting method of all back-contact electrodes contact crystalline silicon solar cell comprising piece |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552138B (en) * | 2016-02-23 | 2017-08-29 | 深圳市创益科技发展有限公司 | A kind of electrode lead-out method of back contact solar battery Precision Machining into battery chip |
| CN109769161A (en) * | 2018-12-10 | 2019-05-17 | 苏州融硅新能源科技有限公司 | A kind of solar energy speaker and solar battery sheet cut installation method |
| CN110867498A (en) * | 2019-08-21 | 2020-03-06 | 晋能清洁能源科技股份公司 | Preparation method of sliced battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281936A (en) * | 2008-04-24 | 2008-10-08 | 珈伟太阳能(武汉)有限公司 | Method for cutting pedion fingerlike staggered solar battery sheet |
| CN102544210A (en) * | 2011-12-30 | 2012-07-04 | 四川钟顺太阳能开发有限公司 | Cutting technology for back contact solar battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4369259B2 (en) * | 2004-02-19 | 2009-11-18 | シャープ株式会社 | Method for manufacturing solar battery cell |
| KR20120108724A (en) * | 2011-03-25 | 2012-10-05 | 삼성전기주식회사 | Method and apparatus for producing solar cell |
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2015
- 2015-09-08 CN CN201510562866.6A patent/CN105336812B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281936A (en) * | 2008-04-24 | 2008-10-08 | 珈伟太阳能(武汉)有限公司 | Method for cutting pedion fingerlike staggered solar battery sheet |
| CN102544210A (en) * | 2011-12-30 | 2012-07-04 | 四川钟顺太阳能开发有限公司 | Cutting technology for back contact solar battery |
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| CN105336812A (en) | 2016-02-17 |
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