CN105609576A - Photovoltaic lamination element, fabrication method thereof, photovoltaic module and photovoltaic package structure - Google Patents
Photovoltaic lamination element, fabrication method thereof, photovoltaic module and photovoltaic package structure Download PDFInfo
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- CN105609576A CN105609576A CN201610024285.1A CN201610024285A CN105609576A CN 105609576 A CN105609576 A CN 105609576A CN 201610024285 A CN201610024285 A CN 201610024285A CN 105609576 A CN105609576 A CN 105609576A
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- layer casting
- photovoltaic layer
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- 238000003475 lamination Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 238000005266 casting Methods 0.000 claims description 59
- 239000000565 sealant Substances 0.000 claims description 19
- 238000004806 packaging method and process Methods 0.000 claims description 16
- 241000446313 Lamella Species 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- H01L31/04—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 adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/544—Marks applied to semiconductor devices or parts, e.g. registration marks, alignment structures, wafer maps
-
- 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
- H01L31/04—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 adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention relates to a photovoltaic lamination element. The photovoltaic lamination element comprises a transparent cover plate, a first sealing layer, a battery piece layer, a second sealing layer and a backplate, which are sequentially laminated, wherein the battery piece layer comprises a plurality of connected battery pieces, the photovoltaic lamination element also comprises a convergence strip, an insulation sheet and an identification code structure, and the identification code structure is formed on the convergence strip or the insulation sheet. In the above photovoltaic lamination element, the identification code structure is directly formed on the convergence strip or the insulation sheet, manual sticking is not needed, the formation of the identification code structure is automatically achieved by a machine, and the product cost is reduced; moreover, the identification code structure is difficult to age and cannot be layered, and the problem that the identification code structure cannot be identified is prevented; and the photovoltaic lamination element is attractive in appearance, and the product competiveness is enhanced. The invention also provides a fabrication method of the above photovoltaic lamination element and a photovoltaic module and a photovoltaic package structure containing the photovoltaic lamination element.
Description
Technical field
The present invention relates to photovoltaic cell technical field, particularly relate to a kind of photovoltaic layer casting die and preparation method thereofAnd photovoltaic module and photovoltaic packaging structure.
Background technology
At present, the technique of the embedded bar code of photovoltaic layer casting die is generally, first by bar code printer by bar codeBe printed on and on PET label paper, form bar code label. Then before component lamination, by manually with tweezers by barShape code label, is attached on busbar, and final layer swaging becomes photovoltaic layer casting die.
But PET label paper is very thin, very soft, in attaching process, easily produce fold, be also prone to simultaneouslyPaste anti-, paste wrong phenomenon, to having relatively high expectations of artificial proficiency. In addition, long-time after, the aging of product,Bar code can with busbar layering, there is the risk of delamination; Also there will be bar code unclear, can not identifyRisk.
Summary of the invention
Based on this, be necessary for the existing photovoltaic layer casting die technique of labelling high and have aging to manual requestThe problem of the risk that can not identify, provide a kind of can automated production and avoid aging can not identification problemPhotovoltaic layer casting die.
A kind of photovoltaic layer casting die, comprises the transparent cover plate, the first sealant, battery lamella, the of lamination successivelyTwo sealants and backboard; Described battery lamella comprises the cell piece of some connections;
Described photovoltaic layer casting die also comprises:
Convergent belt, is connected electrically on described cell piece;
Insulating trip, for separating and the described convergent belt that insulate;
And identification code structure, be formed on described convergent belt or on insulating trip.
Above-mentioned photovoltaic layer casting die directly forms identification code structure on convergent belt or insulating trip, does not need artificialThe mode of pasting, so avoided in attaching process easily producing fold, be also prone to simultaneously paste anti-, paste wrongPhenomenon, has reduced artificial requirement, is realized by machine automation, has reduced the cost of product. In addition,Because identification code structure is directly formed on convergent belt or insulating trip, the life-span of identification code structure and the longevity of laminateOrder identically, identification code structure is difficult for aging, can layering, avoid the problem that can not identify. Further, onState photovoltaic layer casting die outward appearance and beautify, promoted the competitiveness of product.
In an embodiment, described identification code structure is Structure of Bar-code therein.
Therein in an embodiment, described Structure of Bar-code is by some the first luminance bar and some second brightDegree bar interval forms; On the surface of described convergent belt or insulating trip, be provided with some diffuse reflective structure to formOne luminance bar; Described convergent belt between adjacent described the first luminance bar or the surface of insulating trip form theTwo luminance bar.
In an embodiment, described unrestrained emitting structural is pit therein; The radius of described pit is 20～40Micron.
In an embodiment, the degree of depth of described pit is 1～20 micron therein.
In an embodiment, described pit becomes by laser spot corrosion, galvanic corrosion, dotting punch swaging therein.
In an embodiment, described unrestrained emitting structural forms by frosted therein.
In an embodiment, in described diffuse reflective structure, be also filled with the colorant that improves contrast therein.
Therein in an embodiment, described Structure of Bar-code is by some the 3rd luminance bar and some the 4th brightDegree bar interval forms;
On described convergent belt, offer hollow slots, described hollow slots expose described backboard or described insulating trip withForm the 3rd luminance bar; The surface of the described convergent belt between adjacent described the 3rd luminance bar forms the 4thLuminance bar;
Or,
On described insulating trip, offer hollow slots, described hollow slots expose described backboard or described convergent belt withForm the 3rd luminance bar; The surface of the described insulating trip between adjacent described the 3rd luminance bar forms the 4thLuminance bar.
The present invention also provides a kind of preparation method of above-mentioned photovoltaic layer casting die.
A preparation method for photovoltaic layer casting die, comprises the steps:
On convergent belt or on insulating trip, form identification code structure; Then by cell piece, convergent belt and insulationSheet forms battery lamella; Again by transparent cover plate, the first sealant, battery lamella, the second sealant and the back of the bodyFlaggy presses to form photovoltaic layer casting die.
The preparation method of above-mentioned photovoltaic layer casting die, has cancelled artificial labelled step, so avoided pastingIn additive process, easily produce fold, be also prone to simultaneously paste anti-, paste wrong phenomenon, reduced artificial requirement,Realized by machine automation, reduced the cost of product.
The present invention also provides a kind of photovoltaic module.
A kind of photovoltaic module, the terminal box that comprises photovoltaic layer casting die and be electrically connected with described photovoltaic layer casting die;Wherein, described photovoltaic layer casting die is photovoltaic layer casting die provided by the present invention.
Above-mentioned photovoltaic module, owing to adopting photovoltaic layer casting die provided by the present invention, has reduced the cost of product,Avoid the problem that can not identify; Outward appearance is beautified, and has promoted the competitiveness of product.
The present invention also provides a kind of photovoltaic packaging structure.
A kind of photovoltaic packaging structure, comprises photovoltaic module and is packaged in the pack case outside described photovoltaic module;It is characterized in that, described photovoltaic module is photovoltaic module provided by the present invention.
Above-mentioned photovoltaic packaging structure, owing to adopting photovoltaic module provided by the present invention, has reduced the one-tenth of productOriginally, promoted the competitiveness of product.
In an embodiment, described photovoltaic packaging structure also comprises hollow out identification code structure therein; Described engravingEmpty identification code structure is formed by some the 5th luminance bar and some the 6th luminance bar intervals; On described housingOffer hollow slots, described hollow slots is exposed the frame of described photovoltaic module to form the 5th luminance bar, adjacentDescribed the 5th luminance bar between described housing surface form the 6th luminance bar.
Brief description of the drawings
Fig. 1 is the partial structurtes schematic diagram of the photovoltaic layer casting die of one embodiment of the invention.
Fig. 2 is the microstructure schematic diagram of the identification code of the photovoltaic layer casting die of one embodiment of the invention.
Fig. 3 is the structural representation of the identification code of the photovoltaic layer casting die of another embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and realityExecute example, the present invention is further elaborated. Only should be appreciated that specific embodiment described hereinOnly, in order to explain the present invention, be not intended to limit the present invention.
The photovoltaic layer casting die of one embodiment of the invention, comprise lamination successively transparent cover plate, the first sealant,Battery lamella, the second sealant and backboard.
Wherein, the Main Function of transparent cover plate is by battery sheet packaging, plays the effect of printing opacity simultaneously. SpecificallyGround, transparent cover plate is preferably glass cover-plate, more preferably safety glass cover plate.
Wherein, the Main Function of the first sealant and the second sealant is, by cell piece fixing seal transparentBetween cover plate and backboard. In the present embodiment, the first sealant and the second sealant are ethene-vinyl acetateCopolymer layer (being EVA layer). Certainly, the first sealant and the second sealant are not limited to EVA layer,Can also but other sealing adhesive backers make. Be understandable that the first sealant and the second sealantCan adopt material of the same race, can be also unlike material.
Wherein, the Main Function of backboard is that cell piece is played protection and supported. In the present embodiment,Backboard is polyvinyl fluoride backboard. Be understandable that, backboard is not limited to polyvinyl fluoride backboard, all rightIt is other backboard. Backboard can be lamina, can also be composite layered plate.
Referring to Fig. 1, battery lamella comprises the cell piece 140 of some connections. The concrete structure of cell piece 140 canTo adopt various structure known in those skilled in the art, do not repeat them here! In the present embodiment, electricityPond sheet 140 is connected mutually with the above-below direction in scheming. For convenience of explanation, the cell piece of the leftmost side will be positioned atBe defined as the first string, be from left to right defined as successively the second string, the 3rd string, the 4th string, the 5th string, the 6thString.
Photovoltaic layer casting die 100 of the present invention also comprises convergent belt 120, insulating trip 150 and identification code structure.
Wherein, the effect of convergent belt 120 is that the electric current of cell piece 140 is led to outside photovoltaic layer casting die 100.Usually, convergent belt 120 welds to realize convergent belt by the gate line 141 of cell piece with convergent belt 120120 with being electrically connected of cell piece 140. In Fig. 1, convergent belt 120 is according to connecting different points of cell piece 140For long convergent belt 121 and short convergent belt 122. Particularly, the first string is electrically connected with the long convergent belt 121 in left sideConnect, the 6th string is electrically connected with the long convergent belt 121 on right side, the short convergent belt 122 in second and third string and left sideElectrical connection, fourth, fifth string is electrically connected with the short convergent belt 122 on right side.
Usually, in order to save the size of photovoltaic layer casting die 100 above-below direction in Fig. 1, long convergent belt 121With the stacked setting of short convergent belt 122. Owing to can not being electrically connected in photovoltaic layer casting die between convergent belt 120,Therefore between convergent belt 120, need insulation. The effect of insulating trip 150 is exactly, by 120 points of stacked convergent beltsEvery and adjacent convergent belt 120 is insulated. In Fig. 1, two long convergent belts 121 are positioned at insulating trip 150On, two short convergent belts 122 are positioned under insulating trip 150.
The convergent belt 120 being electrically connected for fear of the non-design of cell piece 140 and its is electrically connected, in the present embodimentAlso establish shim 160, for the back side of cell piece 140 and convergent belt 120 are separated, thereby make between it exhaustedEdge.
Wherein, the effect of identification code structure is, records the various product information of photovoltaic laminate 100, is thisThe ID of photovoltaic layer casting die 100, can electronic recognition function thereby photovoltaic layer casting die 100 is possessed. In the present inventionMiddle identification code structure is formed on convergent belt 120 or on insulating trip 150; Because identification code structure needs scanningIdentification, so be understandable that, it is macroscopic from front that identification code structure is positioned at photovoltaic layer casting die 100Region.
Describe taking identification code structure as Structure of Bar-code below. Be understandable that, identification code structure alsoBeing not limited to Structure of Bar-code, can also be two-dimension code structure, and it can be understood with reference to bar code.
In the present embodiment, identification code structure is formed on the region, A place of convergent belt 121. Identification code like thisStructure, away from welding region, causes damage to identification code structure while avoiding welding.
Particularly, in conjunction with Fig. 1, referring to Fig. 2, Structure of Bar-code is by some the first luminance bar 11 and someTwo luminance bar 12 intervals form; On the surface of convergent belt 120, be provided with some diffuse reflective structure to form firstLuminance bar 11; The surface of the convergent belt 120 between the first adjacent luminance bar 11 forms the second luminance bar12。
In the present embodiment, unrestrained emitting structural is pit 9; The similar concave mirror of these pits 9, goes out light scatteringCome, reach bar code knowledge thereby reach the diffuse reflection of convergent belt 120 processing districts and the mirror-reflection in undressed districtNot Yao Qiu contrast. Those skilled in the art can adjust the first luminance bar 11 by the row of pit 9Width, and the contrast regulating by the closeness of pit 9. For more attractive in appearance, be easy to identification;The radius of pit 9 is preferably 20～40 microns. The degree of depth of pit 9 is preferably 1～20 micron.
Wherein, pit 9 becomes by laser spot corrosion, galvanic corrosion, dotting punch swaging. Said method is specially adapted toWhile being coated with tin copper strips as convergent belt 120.
Laser spot corrosion can be realized by following methods particularly: utilize laser engraving machine, adjust the out of focus of laserAmount, in need region to be processed, laser ablation goes out intensive pit 9, thereby makes the diffuse reflection that realizes in this region,To form the first luminance bar 11. Untreated region shape between convergent belt 120 adjacent the first luminance bar 11 in surfaceBecome the second luminance bar 12.
Galvanic corrosion can be realized by following methods particularly: with arc generator, and the region of processing as required,Control the amount of feeding, in need region to be processed, convergent belt 120 surface etchings are gone out to intensive pit 9, therebyMake the diffuse reflection that realizes in this region, to form the first luminance bar 11. Convergent belt 120 adjacent the first brightness in surfaceBetween bar 11, untreated region forms the second luminance bar 12.
Dotting punch is pressed and can be realized by following methods particularly: for example, with the high briquetting (diamond) of hardness, at needRegion to be processed, stamps out intensive pit 9 by convergent belt 120 surfaces, thereby makes the realization in this region unrestrainedReflection, to form the first luminance bar 11. Untreated between convergent belt 120 adjacent the first luminance bar 11 in surfaceRegion forms the second luminance bar 12.
In order further to improve the contrast of the first luminance bar 11 and some the second luminance bar 12, at pit 9In be also filled with colorant. When filling colorant is specially adapted to using copper strips as convergent belt 120.
Be filled to example with tri-iron tetroxide colorant below and describe, after forming pit 9, at convergent belt120 below arranges an electromagnetic generator and probe groups. Tri-iron tetroxide colorant paving is sprinkled upon to convergent belt 120Pit 9 regions on, probe moves to the below of pit 9, energising magnetisation, by tri-iron tetroxide aroundColorant sucks in pit 9 and fills pit 9. Certainly, be not limited to aforesaid way, also can use printerPaint is coated in to pit 9 regions to form in the first luminance bar 11.
Certainly, unrestrained emitting structural is also not limited to pit, and unrestrained emitting structural can also be to form by frostedSurface texture. Particularly, use thin grinding-wheel grinder, according to design requirement, by the Electric Machine Control amount of feeding, will be pre-She Tiao district mill is rough, changes the roughness on convergent belt 120 surfaces herein, reaches the effect of unrestrained transmitting, with shapeBecome the first luminance bar 11. Between adjacent the first luminance bar 11 in convergent belt 120 surface, untreated region forms theTwo luminance bar 12.
Certainly, be understandable that, above-mentioned identification code structure is not limited to the A that is formed at convergent belt 121On region, place, can also be convergent belt 121 other from photovoltaic layer casting die 100 front naked eyes viewable portions; AlsoOr identification code structure is for example formed at insulating trip, from photovoltaic layer casting die 100 front naked eyes viewable portions, CPlace.
In conjunction with Fig. 1 referring to Fig. 3, the structure of the identification code of the photovoltaic layer casting die that Fig. 3 is another embodiment of the present inventionSchematic diagram. With embodiment difference be above, if Structure of Bar-code by some the 3rd luminance bar 13 and14 articles of intervals of dry the 4th brightness form. In this embodiment, Structure of Bar-code is arranged in Fig. 1 D place. GrowingOn convergent belt 121, offer hollow slots, hollow slots is exposed backboard to form the 3rd luminance bar 13; AdjacentThe surface of the long convergent belt 121 between three luminance bar 13 forms the 4th luminance bar 14. In photovoltaic layer casting die,The color of backboard is different from the color of long convergent belt, so the 3rd luminance bar 13 and the 4th luminance bar 14 is rightThan degree difference, Structure of Bar-code can be identified.
Certainly, according to above-mentioned principle, Structure of Bar-code can also be arranged in the A place of Fig. 1, and hollow slots is exposedInsulating trip 150 is to form the 3rd luminance bar 13. Be understandable that, now insulating trip 150 is nontransparent exhaustedEmbolium, and in the contrast difference of long convergent belt 121. Certainly, Structure of Bar-code can also be arranged in Fig. 1B place, Structure of Bar-code is formed on insulating trip 150, now insulating trip 150 is still nontransparent insulationSheet is offered hollow slots on insulating trip 150, and hollow slots is exposed short convergent belt 122 to form the 3rd luminance bar13, the surface of the insulating trip 150 between the 3rd adjacent luminance bar 13 forms the 4th luminance bar 14. Also canTo be, Structure of Bar-code is still arranged in the B place of Fig. 1, and Structure of Bar-code is formed on short convergent belt 122,Now insulating trip 150 is still transparent insulation sheet, on short convergent belt 122, offers hollow slots, and hollow slots is revealedGo out backboard to form the 3rd luminance bar 13, the table of the short convergent belt 122 between the 3rd adjacent luminance bar 13Face forms the 4th luminance bar 14. Can also be that Structure of Bar-code can also be arranged in the C place of Fig. 1, bar shapedCode structure is formed on insulating trip 150, and now insulating trip 150 is nontransparent insulating trip, at insulating trip 150On offer hollow slots, hollow slots is exposed backboard to form the 3rd luminance bar 13, in the 3rd adjacent luminance bar 13Between insulating trip 150 surface form the 4th luminance bar 14.
Be understandable that, according to the difference of material, hollow slots can be selected to cut by laser ablation, laserCut, the mode such as galvanic corrosion, punching press cut, milling forms.
The present invention also provides a kind of preparation method of above-mentioned photovoltaic layer casting die.
A preparation method for photovoltaic layer casting die, comprises the steps:
On convergent belt or on insulating trip, form identification code structure; Then by cell piece, convergent belt and insulationSheet forms battery lamella; Again by transparent cover plate, the first sealant, battery lamella, the second sealant and the back of the bodyFlaggy presses to form photovoltaic layer casting die.
Wherein, forming identification code structure can, with reference to above understanding, form battery lamella and laminating technology and beKnown in those skilled in the art, do not repeat them here!
The preparation method of above-mentioned photovoltaic layer casting die, has cancelled artificial labelled step, so avoided pastingIn additive process, easily produce fold, be also prone to simultaneously paste anti-, paste wrong phenomenon, reduced artificial requirement,Realized by machine automation, reduced the cost of product.
The present invention also provides a kind of photovoltaic module.
A kind of photovoltaic module, the terminal box that comprises photovoltaic layer casting die and be electrically connected with described photovoltaic layer casting die;Wherein, described photovoltaic layer casting die is photovoltaic layer casting die provided by the present invention.
Above-mentioned photovoltaic module, owing to adopting photovoltaic layer casting die provided by the present invention, has reduced the cost of product,Avoid the problem that can not identify; Outward appearance is beautified, and has promoted the competitiveness of product.
The present invention also provides a kind of photovoltaic packaging structure.
A kind of photovoltaic packaging structure, comprises photovoltaic module and is packaged in the pack case outside described photovoltaic module;It is characterized in that, described photovoltaic module is photovoltaic module provided by the present invention.
In order further to strengthen the identification of photovoltaic packaging structure, in one embodiment, photovoltaic packaging structure also wrapsDraw together hollow out identification code structure; Hollow out identification code structure is by between some the 5th luminance bar and some the 6th luminance barEvery formation; In pack case, offer hollow slots, hollow slots is exposed the frame of photovoltaic module to form the 5th brightnessBar, the surface of the pack case between adjacent described the 5th luminance bar forms the 6th luminance bar.
After this photovoltaic module is loaded into pack case, now frame is positioned at hollow slots place just, and frame formsReflection, from pack case form reflection different, now scan and can identify. When this photovoltaic module quiltWhile taking away, hollow slots can not reverberation, now scans and can identify. Can also know by hollow out like thisOther code structure judges the photovoltaic module situation in case.
Above-mentioned photovoltaic packaging structure, owing to adopting photovoltaic module provided by the present invention, has reduced the one-tenth of productOriginally, promoted the competitiveness of product.
Each technical characterictic of the above embodiment can combine arbitrarily, for making to describe succinctly, not rightThe all possible combination of each technical characterictic in above-described embodiment is all described, but, as long as these skillsThere is not contradiction in the combination of art feature, is all considered to be the scope that this description is recorded.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed,But can not therefore be construed as limiting the scope of the patent. It should be pointed out that for this areaThose of ordinary skill, without departing from the inventive concept of the premise, can also make some distortion and changeEnter, these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be with appended powerProfit requires to be as the criterion.
Claims (13)
1. a photovoltaic layer casting die, comprise lamination successively transparent cover plate, the first sealant, battery lamella,The second sealant and backboard; Described battery lamella comprises the cell piece of some connections;
Described photovoltaic layer casting die also comprises:
Convergent belt, is connected electrically on described cell piece;
Insulating trip, for separating and the described convergent belt that insulate;
And identification code structure, be formed on described convergent belt or on insulating trip.
2. photovoltaic layer casting die according to claim 1, is characterized in that, described identification code structure is barShape code structure.
3. photovoltaic layer casting die according to claim 2, is characterized in that, if described Structure of Bar-code byDry the first luminance bar and some the second luminance bar intervals form; On the surface of described convergent belt or insulating tripBe provided with some diffuse reflective structure to form the first luminance bar; Described between adjacent described the first luminance barThe surface of convergent belt or insulating trip forms the second luminance bar.
4. photovoltaic layer casting die according to claim 3, is characterized in that, described unrestrained emitting structural is recessedHole; The radius of described pit is 20～40 microns.
5. photovoltaic layer casting die according to claim 4, is characterized in that, the degree of depth of described pit is 1～20Micron.
6. photovoltaic layer casting die according to claim 4, is characterized in that, described pit passes through laser spotsErosion, galvanic corrosion, dotting punch swaging become.
7. photovoltaic layer casting die according to claim 3, is characterized in that, described unrestrained emitting structural passes throughFrosted forms.
8. photovoltaic layer casting die according to claim 3, is characterized in that, in described diffuse reflective structure, goes backBe filled with the colorant that improves contrast.
9. photovoltaic layer casting die according to claim 2, is characterized in that, if described Structure of Bar-code byDry the 3rd luminance bar and some the 4th luminance bar intervals form;
On described convergent belt, offer hollow slots, described hollow slots expose described backboard or described insulating trip withForm the 3rd luminance bar; The surface of the described convergent belt between adjacent described the 3rd luminance bar forms the 4thLuminance bar;
Or,
On described insulating trip, offer hollow slots, described hollow slots expose described backboard or described convergent belt withForm the 3rd luminance bar; The surface of the described insulating trip between adjacent described the 3rd luminance bar forms the 4thLuminance bar.
10. a preparation method for photovoltaic layer casting die, comprises the steps:
On convergent belt or on insulating trip, form identification code structure; Then by cell piece, convergent belt and insulationSheet forms battery lamella; Again by transparent cover plate, the first sealant, battery lamella, the second sealant and the back of the bodyFlaggy presses to form photovoltaic layer casting die.
11. 1 kinds of photovoltaic modulies, the wiring that comprises photovoltaic layer casting die and be electrically connected with described photovoltaic layer casting dieBox; It is characterized in that, described photovoltaic layer casting die is the photovoltaic layer casting die described in claim 1-9 any one.
12. 1 kinds of photovoltaic packaging structures, comprise photovoltaic module and are packaged in the packaging outside described photovoltaic moduleShell; It is characterized in that, described photovoltaic module is the photovoltaic module described in claim 11.
13. photovoltaic packaging structures according to claim 12, is characterized in that, described photovoltaic packaging knotStructure also comprises hollow out identification code structure; Described hollow out identification code structure is by some the 5th luminance bar and someSix luminance bar intervals form; In described pack case, offer hollow slots, described hollow slots is exposed described photovoltaic groupThe frame of part to be to form the 5th luminance bar, the table of the described pack case between adjacent described the 5th luminance barFace forms the 6th luminance bar.
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