CN107171642A - A kind of snail line assesses sample component and its preparation and method of testing - Google Patents
A kind of snail line assesses sample component and its preparation and method of testing Download PDFInfo
- Publication number
- CN107171642A CN107171642A CN201710514287.3A CN201710514287A CN107171642A CN 107171642 A CN107171642 A CN 107171642A CN 201710514287 A CN201710514287 A CN 201710514287A CN 107171642 A CN107171642 A CN 107171642A
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- CN
- China
- Prior art keywords
- preparation
- cell piece
- sample component
- assesses
- snail line
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- 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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Links
- 241000237858 Gastropoda Species 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 238000010998 test method Methods 0.000 title abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 39
- 239000002313 adhesive film Substances 0.000 claims abstract description 30
- 238000004806 packaging method and process Methods 0.000 claims abstract description 24
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 238000003698 laser cutting Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052709 silver Inorganic materials 0.000 abstract description 10
- 239000004332 silver Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 230000000877 morphologic effect Effects 0.000 abstract description 4
- 238000011158 quantitative evaluation Methods 0.000 abstract description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 238000003475 lamination Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 101100008047 Caenorhabditis elegans cut-3 gene Proteins 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 241000361919 Metaphire sieboldi Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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
Landscapes
- Laminated Bodies (AREA)
Abstract
Sample component and its preparation and method of testing are assessed the invention discloses a kind of snail line, snail line, which assesses sample component, includes foreboard, preceding packaging adhesive film, battery layers and post package glued membrane, the battery layers are made up of the section of at least two panels battery, and the battery section, which is cut or is broken by cell piece, to be formed.Snail line assesses the preparation method of sample component, comprises the following steps：（1）Selection：Choose cell piece；（2）Cutting：The cell piece is cut using cutting equipment；（3）Encapsulate sample preparation：The foreboard, preceding packaging adhesive film, battery layers and post package glued membrane are encapsulated into sample preparation.The preparation method that a kind of snail line of the present invention assesses sample component can accurately control the morphological feature of various sample elementary battery plate crack, be consistent it, be capable of the anti-snail line performance of the reasonably accurate different silver paste material of quantitative evaluation and packaging adhesive film.
Description
Technical field
The present invention relates to technical field of solar batteries, and in particular to a kind of snail line assesses sample component and its preparation side
Method, and the snail line obtained using this method assess the method for testing of sample component.
Background technology
As photovoltaic technology constantly develops, the solar cell of the semiconductor devices converted solar energy into electrical energy is used as
Product has obtained quick exploitation.Solar battery product often occurs " snail line "（Lightning line or earthworm line）, it refers to
There is a kind of phenomenon of tiny discoloration striped in component cell piece surface, and this phenomenon is the result of chemical reaction, is greatly influenceed
The outward appearance of component.
Found when the component to there is snail line is analyzed, lines typically all splits appearance along with the hidden of cell piece,
In EL（Electroluminescent）It can be clearly seen in imaging and the hidden of cell piece in snail line component occur and split.To occurring at snail line
Do stripping to dissect, it can be found that cell piece has no discoloration in itself, discoloration position is located at silver paste and encapsulating material EVA（Ethyl vinyl acetate
Ethylene copolymer）Intersection.There is research to point out that the appearance of snail line is relevant with steam, the steam especially passed through from backboard,
By being oozed after EVA adhesive film from hidden split, in cell piece surface enrichment, cause silver paste to aoxidize, form black lines.It is considered that
The appearance of snail line and hidden crackle, EVA adhesive film, silver paste, steam have relation.
In the prior art, component manufacturer is assessing whether combining for silver paste and packaging adhesive film occurs the risk of snail line
When, typically there is two ways：
1）Such as Chinese Patent Application No. 201610122544.4, a kind of entitled " the snail line test side of solar cell module
Described in the patent of invention of method ", conventional batteries piece is selected, by welding, stacking（In order by glass, packaging adhesive film, electricity
Pond piece, packaging adhesive film, backboard are laminated）, photovoltaic module laminate is formed after lamination；Then covered using sharp instrument
It is stamped on the backboard of cotton-wadded quilt and is tapped, the cell piece in laminate hidden crackle is occurred；Finally photovoltaic laminate is placed in wet
Appropriate time under heat condition, removes laminate and has seen whether that snail line occurs.
2）Such as Chinese Patent Application No. 201510996946.2, entitled " a kind of method of testing of photovoltaic module snail line "
Patent of invention described in, select hidden to split cell piece（It is hidden to split length accounts for cell piece total length 1/4~3/4, it is hidden to split quantity
>=2, and hidden split do not allow to be significantly departing from）, by welding, stacking（In order by glass, packaging adhesive film, cell piece, packaging plastic
Film, backboard are laminated）, photovoltaic module laminate is formed after lamination；Photovoltaic laminate is placed under wet heat condition suitably again
Time, remove laminate and seen whether that snail line occurs.
The first of above two mode is to produce hidden crackle, length, position, type of hidden crackle etc. by artificially tapping
Various conditions are uncontrollable；Though second with certain standard choose it is hidden split cell piece, but still can not accurately control different batteries
The morphological feature of the hidden crackle of piece.And component manufacturer is when contrasting the anti-snail line performance that different silver paste materials are combined with EVA adhesive film,
Two influence factors of specification, the i.e. hidden crackle of steam and cell piece are needed, rational assessment can be just drawn.
The content of the invention
In view of this, in order to overcome the defect of prior art, sample is assessed it is an object of the invention to provide a kind of snail line
Component and preparation method thereof, specification is carried out to the hidden crackle of cell piece using different silver paste materials and the sample component of EVA adhesive film
Change, rationally assess the performance of different silver paste materials and packaging adhesive film.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of snail line assesses the preparation method of sample component, comprises the following steps：Cell piece is chosen, using cutting equipment to institute
State cell piece to be cut, then encapsulate sample preparation.
Preferably, described to be cut into laser cutting, described cutting equipment is laser cutting device.
It is further preferred that cutting times, cut surface, cut direction and the Cutting Length of each cell piece keep one
Cause.
It is further preferred that the cut surface is the back side of the cell piece.
It is further preferred that grid line or grid perpendicular to the cell piece of the cut direction parallel to the cell piece
Line or the grid line angular cross at an acute angle with the cell piece.
Preferably, soldering is passed through between the cell piece.
It is further preferred that the encapsulation sample preparation is by the stacking of foreboard, preceding packaging adhesive film, the cell piece and post package glued membrane
It is laminated afterwards.
Sample component, including foreboard, preceding packaging adhesive film, battery layers and rear envelope are assessed present invention also offers a kind of snail line
Glued membrane is filled, the battery layers are made up of the section of at least two panels battery.
Preferably, the battery section, which is cut or is broken by the cell piece, forms.
, will preparation method system as described above present invention also offers the method for testing that a kind of snail line assesses sample component
The standby snail line assesses sample component and is placed in that temperature is 30 ~ 90 DEG C, humidity is 10 ~ 95% and has sunshine or simulation
Tested under conditions of solar source, assess whether the sample component has the generation of snail line.
Compared with prior art, a kind of preparation method of snail line of the invention assessment sample component can be controlled accurately not
With the morphological feature of sample elementary battery plate crack, it is consistent it, being capable of the reasonably accurate different silver paste material of quantitative evaluation
The anti-snail line performance of material and packaging adhesive film.
Brief description of the drawings
Fig. 1 is the stacking figure of snail line assessment sample component in embodiment；
Fig. 2 assesses the preparation process of sample component for the snail line of the present invention；
Fig. 3 assesses the schematic diagram of cell piece cut direction in sample component for the snail line of embodiment one；
Fig. 4 assesses the schematic diagram of cell piece cut direction in sample component for the snail line of embodiment two；
Fig. 5 assesses the schematic diagram of cell piece cut direction in sample component for the snail line of embodiment three and example IV；
In accompanying drawing：Foreboard -1, preceding packaging adhesive film -2, cell piece -3, grid line -31, line of cut -32, post package glued membrane -4, backboard -
5。
Embodiment
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
A kind of snail line in following examples assesses sample component, including foreboard 1, preceding packaging adhesive film 2, battery layers, after
Packaging adhesive film 4 and backboard 5, battery layers are made up of the section of at least two panels battery.Battery section is cut by cell piece or is broken and forms,
Battery section is cut by laser by same or multiple cell pieces 3 in following examples forms.By setting laser cutting device to join
Number is so that the cutting mode of multiple cell pieces 3 is consistent, and cutting mode includes cutting times, cut surface, cut direction, cut
Cut length and depth of cut.
Embodiment one
Referring to figs. 1 to 3, a kind of snail line of the present embodiment assesses the preparation method of sample component, comprises the following steps：
Step S1：Selection
Choose conventional without the hidden cell piece 3 split.
Step S2：Laser cutting
Cell piece 3 is cut by laser along line of cut using laser cutting device, the cutting mode of multiple cell pieces 3 keeps one
Cause, cutting mode includes cutting times, cut surface, cut direction and depth of cut.The cut surface of the present embodiment is cell piece 3
The back side, is cut to certain depth but incomplete cut-off cell piece 3, and cut direction is total to perpendicular to the back side grid line 31 of cell piece 3
Cut 3 times has three lines of cut 32, and the width of Cutting Length and cell piece 3 is consistent.
Step S3：Welding
Normal weld is carried out to the cell piece 3 after multiple cuttings, the present embodiment chooses 72 after cutting mode of the same race cutting
Cell piece 3 is welded.
Step S4：Encapsulate sample preparation
Carry out being laminated and then carrying out layer according to the cell piece 3 after foreboard 1, preceding packaging adhesive film 2, cutting, post package glued membrane 4, backboard 5
Pressure, and cell piece 3 is broken along line of cut 32, form battery section.The preceding packaging adhesive film 2 and post package glued membrane 4 of the present embodiment
It is EVA adhesive film.Component after lamination is installed with frame and terminal box, snail line is formed and assesses sample component.
The present embodiment additionally provides the method for testing that a kind of snail line assesses sample component：To preparation method as described above
The snail line prepared assesses sample component and is placed in that temperature is 30 ~ 90 DEG C, humidity is 10 ~ 95% and has sunshine or mould
Intend testing under conditions of solar source, assess whether the sample component has the generation of snail line.
Embodiment two
Reference picture 1-2 and Fig. 4, a kind of snail line are assessed the preparation method of sample component, comprised the following steps：
Step S1：Selection
Choose conventional without the hidden cell piece 3 split.
Step S2：Laser cutting
Cell piece 3 is cut by laser along line of cut using laser cutting device, the cutting mode of multiple cell pieces 3 keeps one
Cause, cutting mode includes cutting times, cut surface, cut direction and depth of cut.The cut surface of the present embodiment is cell piece 3
The back side, is cut to certain depth but incomplete cut-off cell piece 3, and cut direction is total to parallel to the back side grid line 31 of cell piece 3
Cut 3 times has three lines of cut 32, and the length of Cutting Length and cell piece 3 is consistent.After having cut, then apply should
Power makes position fracture of the cell piece 3 along line of cut 32, forms battery section.
Step S3：Welding
To multiple cuttings and the progress normal weld of post-rift cell piece 3, the present embodiment is chosen 72 and cut through cutting mode of the same race
Cell piece 3 after cutting is welded.
Step S4：Encapsulate sample preparation
Carry out being laminated and then carrying out layer according to the cell piece 3 after foreboard 1, preceding packaging adhesive film 2, cutting, post package glued membrane 4, backboard 5
Pressure.The preceding packaging adhesive film 2 and post package glued membrane 4 of the present embodiment are EVA adhesive film.By the component after lamination and frame and terminal box
Installed, form snail line and assess sample component.
The present embodiment additionally provides the method for testing that a kind of snail line assesses sample component：To preparation method as described above
The snail line prepared assesses sample component and is placed in that temperature is 30 ~ 90 DEG C, humidity is 10 ~ 95% and has sunshine or mould
Intend testing under conditions of solar source, assess whether the sample component has the generation of snail line.
Embodiment three
Reference picture 1-2 and Fig. 5, a kind of snail line are assessed the preparation method of sample component, comprised the following steps：
Step S1：Selection
Choose conventional without the hidden cell piece 3 split.
Step S2：Laser cutting
Cell piece 3 is cut by laser along line of cut using laser cutting device, the cutting mode of multiple cell pieces 3 keeps one
Cause, cutting mode includes cutting times, cut surface, cut direction and depth of cut.The cut surface of the present embodiment is cell piece 3
The back side, is cut to certain depth but incomplete cut-off cell piece 3, and the back side grid line 31 of cut direction and cell piece 3 is in 45° angle
Intersecting, 3 times are cut altogether has three lines of cut 32.
Step S3：Welding
Normal weld is carried out to the cell piece 3 after multiple cuttings, the present embodiment chooses 72 after cutting mode of the same race cutting
Cell piece 3 is welded.Cell piece 3 after welding is applied into stress, makes position fracture of the cell piece 3 along line of cut 32, is formed
Battery is cut into slices.
Step S4：Encapsulate sample preparation
Carry out being laminated and then carrying out layer according to the cell piece 3 after foreboard 1, preceding packaging adhesive film 2, cutting, post package glued membrane 4, backboard 5
Backboard 5 in pressure, the present embodiment is mould release membrance 5, and mould release membrance 5 is thrown off after the completion of laminating operation.The preceding packaging plastic of the present embodiment
Film 2 and post package glued membrane 4 are EVA adhesive film.Component after lamination is installed with frame and terminal box, snail line is formed and comments
Estimate sample component.
The present embodiment additionally provides the method for testing that a kind of snail line assesses sample component：To preparation method as described above
The snail line prepared assesses sample component and is placed in that temperature is 30 ~ 90 DEG C, humidity is 10 ~ 95% and has sunshine or mould
Intend testing under conditions of solar source, assess whether the sample component has the generation of snail line.
Example IV
Reference picture 1-2 and Fig. 5, a kind of snail line of the present embodiment assess the preparation method and the basic phase of embodiment three of sample component
Together, distinctive points are：Position in the laser cutting operation of the present embodiment directly by cell piece 3 along line of cut 32 cuts off to form electricity
Pond is cut into slices, and carries out subsequent operation welding and encapsulation sample preparation operation again afterwards.
The preparation method that a kind of snail line of the present invention assesses sample component can accurately control various sample component battery
The hidden morphological feature split of piece, is consistent it, being capable of the reasonably accurate different silver paste material of quantitative evaluation and packaging adhesive film
Anti- snail line performance.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (10)
1. a kind of snail line assesses the preparation method of sample component, it is characterised in that comprise the following steps：Cell piece is chosen, is adopted
The cell piece is cut with cutting equipment, sample preparation is then encapsulated.
2. a kind of snail line according to claim 1 assesses the preparation method of sample component, it is characterised in that the cutting
For laser cutting, described cutting equipment is laser cutting device.
3. a kind of snail line according to claim 2 assesses the preparation method of sample component, it is characterised in that each described
Cutting times, cut surface, cut direction and the Cutting Length of cell piece are consistent.
4. a kind of snail line according to claim 3 assesses the preparation method of sample component, it is characterised in that the cutting
Face is the back side of the cell piece.
5. a kind of snail line according to claim 3 assesses the preparation method of sample component, it is characterised in that the cutting
It is oriented parallel to the grid line of the cell piece or the grid line perpendicular to the cell piece or with the grid line of the cell piece in sharp
Angle angular cross.
6. a kind of snail line according to claim 1 assesses the preparation method of sample component, it is characterised in that the battery
Pass through soldering between piece.
7. a kind of snail line according to claim 6 assesses the preparation method of sample component, it is characterised in that the encapsulation
Sample preparation is to be laminated foreboard, preceding packaging adhesive film, the cell piece and post package adhesive film poststack.
8. a kind of snail line assesses sample component, including foreboard, preceding packaging adhesive film, battery layers and post package glued membrane, its feature exists
In the battery layers are made up of the section of at least two panels battery.
9. a kind of snail line according to claim 8 assesses the preparation method of sample component, it is characterised in that the battery
Section, which is cut or is broken by the cell piece, to be formed.
10. a kind of snail line assesses the method for testing of sample component, it is characterised in that by the snail line described in claim 8 or 9
Assess sample component and be placed in that temperature is 30 ~ 90 DEG C, humidity is 10 ~ 95% and has the condition of sunshine or simulated solar light source
Lower test, assesses whether the sample component has the generation of snail line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514287.3A CN107171642A (en) | 2017-06-29 | 2017-06-29 | A kind of snail line assesses sample component and its preparation and method of testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514287.3A CN107171642A (en) | 2017-06-29 | 2017-06-29 | A kind of snail line assesses sample component and its preparation and method of testing |
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|---|---|
| CN107171642A true CN107171642A (en) | 2017-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014227A (en) * | 2019-04-25 | 2019-07-16 | 大族激光科技产业集团股份有限公司 | It is a kind of for cutting the laser cutting method and laser cutting system of polaroid |
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|---|---|---|---|---|
| CN104701207A (en) * | 2015-03-04 | 2015-06-10 | 通威太阳能（合肥）有限公司 | Snail track predication method for solar cell pack |
| CN105552168A (en) * | 2015-12-28 | 2016-05-04 | 东莞南玻光伏科技有限公司 | Prediction method for packaging effect of packaging material of solar photovoltaic module |
| CN106169517A (en) * | 2016-07-20 | 2016-11-30 | 中节能太阳能科技（镇江）有限公司 | A kind of photovoltaic module and preparation technology thereof |
-
2017
- 2017-06-29 CN CN201710514287.3A patent/CN107171642A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701207A (en) * | 2015-03-04 | 2015-06-10 | 通威太阳能（合肥）有限公司 | Snail track predication method for solar cell pack |
| CN105552168A (en) * | 2015-12-28 | 2016-05-04 | 东莞南玻光伏科技有限公司 | Prediction method for packaging effect of packaging material of solar photovoltaic module |
| CN106169517A (en) * | 2016-07-20 | 2016-11-30 | 中节能太阳能科技（镇江）有限公司 | A kind of photovoltaic module and preparation technology thereof |
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Cited By (1)
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| CN110014227A (en) * | 2019-04-25 | 2019-07-16 | 大族激光科技产业集团股份有限公司 | It is a kind of for cutting the laser cutting method and laser cutting system of polaroid |
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