CN108365041A - A kind of preparation method and photovoltaic module of photovoltaic module - Google Patents
A kind of preparation method and photovoltaic module of photovoltaic module Download PDFInfo
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- CN108365041A CN108365041A CN201810153724.8A CN201810153724A CN108365041A CN 108365041 A CN108365041 A CN 108365041A CN 201810153724 A CN201810153724 A CN 201810153724A CN 108365041 A CN108365041 A CN 108365041A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 228
- 238000000034 method Methods 0.000 claims description 24
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 239000002313 adhesive film Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 48
- 239000005038 ethylene vinyl acetate Substances 0.000 description 10
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 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
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005341 toughened glass Substances 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
-
- 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
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- 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
Abstract
The invention discloses a kind of preparation methods of photovoltaic module, it is ironed first section will to be preset in welding, to which welding is divided into the first welding section, the second welding section and third welding section, wherein the thickness of third welding section is less than the thickness of the first welding section and the second welding section, i.e., former welding is made to welding in uneven thickness；When connecting solar battery sheet using welding, by ironed third welding section as the part being bent between two two neighboring solar battery sheets.The width of third welding section can be made to increase while ironed since the welding section between solar battery sheet is relatively thin, while by third welding section.When photovoltaic module is made in pressing, there are certain can be used for that elastically-deformable space occurs between adjacent solar battery piece, while reducing pressure and pressure of the welding to solar battery sheet, and then reduce the hidden of solar battery sheet and split risk.The invention also discloses a kind of photovoltaic modulies, equally have above-mentioned advantageous effect.
Description
Technical field
The present invention relates to solar cell manufacturing fields, the preparation method more particularly to a kind of photovoltaic module and photovoltaic group
Part.
Background technology
With scientific and technological continuous progress, photovoltaic industry has obtained great development, and there has also been wide nowadays for solar cell
General application.
In order to increase the generated output of photovoltaic module, photovoltaic manufacturer starts to the welding structure in photovoltaic module at this stage
It optimizes.In order to reduce welding solar cell surface shielded area, while ensure welding cross-sectional area be in one
Welding can be done narrow do thickness at this stage by a suitable range.
But the thickness of welding is made it is excessive after, in the finally positive transparent cover plate of pressing photovoltaic module and
When the backboard at the back side, it will greatly increase the hidden of solar battery sheet and split risk.
Invention content
The object of the present invention is to provide a kind of preparation methods of photovoltaic module, can effectively reduce and photovoltaic group is made in pressing
The hidden of solar battery sheet splits risk when part；It is a further object of the present invention to provide a kind of photovoltaic modulies, can effectively reduce
The hidden of solar battery sheet splits risk when photovoltaic module is made in pressing.
In order to solve the above technical problems, the present invention provides a kind of preparation method of photovoltaic module, the method includes：
It is ironed at third welding section by section is preset in welding, the welding is divided into the first welding section, the second welding section
With the third welding section；Wherein, the third welding section both ends are respectively the first welding section and the second welding section；
The first welding Duan Yuyi solar battery sheets are welded, and by the second welding section and another solar-electricity
Pond piece welding, so that adjacent solar battery piece is mutually concatenated into solar cell string；
Transparent cover plate is pressed on the solar cell string sensitive side, and backboard is pressed on the solar cell string
Backlight side, photovoltaic module is made.
Optionally, described to preset that section is ironed includes at third welding section in welding：
The 60% to 90% of the section default section original thickness will be preset in the welding, welded so that the third is made
Band section.
Optionally, the first welding section and the value range of the width of the second welding section are 0.2mm to 1.0mm
Between, including endpoint value；The value range of the thickness of the first welding section and the second welding section be 0.23mm extremely
Between 0.30mm, including endpoint value.
Optionally, the value range of the length of the third welding section is 2.5mm between 3.0mm, including endpoint value.
Optionally, it is described will preset the section ironed welding section at third in welding after, the method further includes：
By the welding, predetermined position is bent from the third welding section.
Optionally, described that transparent cover plate is pressed on the solar battery sheet sensitive side, and backboard is pressed on described
Solar cell back light side includes：
The transparent cover plate is pressed on the solar cell string sensitive side by EVA packaging adhesive films, and is sealed by EVA
The backboard is pressed on the solar cell string backlight side by dress glued membrane.
Optionally, the third welding section surface is plane or curved surface.
The present invention also provides a kind of photovoltaic module, the photovoltaic module is specially made using any of the above-described the method
Standby photovoltaic module.
A kind of preparation method of photovoltaic module provided by the present invention, it is ironed first to preset section in welding, to by welding
It is divided into the first welding section, the second welding section and third welding section, the wherein thickness of third welding section is less than the first welding Duan Yu
Former welding, i.e., is made welding in uneven thickness by the thickness of two welding sections；When connecting solar battery sheet using welding, quilt
Ironed third welding section is as the part being bent between two two neighboring solar battery sheets.Due to solar battery sheet
Between welding section it is relatively thin, while the width of third welding section can be made to increase while ironed third welding section.
Pressing is when being made photovoltaic module, can for adjacent solar battery piece between there are certain can be elastically-deformable for occurring
Space, while pressure and pressure of the welding to solar battery sheet are reduced, and then reduce the hidden of solar battery sheet and split risk.
The present invention also provides a kind of photovoltaic modulies, equally have above-mentioned advantageous effect, are no longer repeated herein.
Description of the drawings
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art
Attached drawing is briefly described needed in technology description, it should be apparent that, the accompanying drawings in the following description is only this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
A kind of flow chart for photovoltaic module preparation method that Fig. 1 is provided by the embodiment of the present invention；
A kind of front view for welding that Fig. 2 is provided by the embodiment of the present invention；
A kind of vertical view for welding that Fig. 3 is provided by the embodiment of the present invention；
A kind of front view for solar cell string that Fig. 4 is provided by the embodiment of the present invention；
A kind of vertical view for solar cell string that Fig. 5 is provided by the embodiment of the present invention；
A kind of structural schematic diagram for photovoltaic module that Fig. 6 is provided by the embodiment of the present invention；
The flow chart for another photovoltaic module preparation method that Fig. 7 is provided by the embodiment of the present invention.
In figure：1. welding, 11. first welding sections, 12. second welding sections, 13. third welding sections, 2. solar cells
Piece, 3. transparent cover plates, 4. backboards.
Specific implementation mode
Core of the invention is to provide a kind of preparation method of photovoltaic module.In the prior art, in order to increase photovoltaic group
The generated output of part can will be designed to narrow and thick welding, simultaneously for the welding for adjacent solar battery piece of connecting at this stage
The distance between adjacent solar battery piece is very small.But when stating narrow and thick welding in use, finally it is being pressed into light
During lying prostrate component, welding can generate the edge being in contact with welding in solar battery sheet larger pressure and pressure
By force, so that in the finally positive transparent cover plate of pressing photovoltaic module and the backboard at the back side, the sun is significantly increased
Energy the hidden of cell piece splits risk.
And a kind of preparation method of photovoltaic module provided by the present invention, it is ironed first section will to be preset in welding, to weld
Band is divided into the first welding section, the second welding section and third welding section, wherein the thickness of third welding section be less than the first welding section with
Former welding, i.e., is made welding in uneven thickness by the thickness of the second welding section；When connecting solar battery sheet using welding,
By ironed third welding section as the part being bent between two two neighboring solar battery sheets.Due to solar cell
Welding section between piece is relatively thin, while the width of third welding section can be made to increase while ironed third welding section.
When photovoltaic module is made in pressing, there are certain can be used for that elastic deformation occurs between adjacent solar battery piece
Space, while reducing pressure and pressure of the welding to solar battery sheet, and then reduce the hidden of solar battery sheet and split wind
Danger.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
It please refers to Fig.1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of photovoltaic module that Fig. 1 is provided by the embodiment of the present invention
The flow chart of preparation method；A kind of front view for welding that Fig. 2 is provided by the embodiment of the present invention；Fig. 3 is the embodiment of the present invention
A kind of vertical view of the welding provided；A kind of front view for solar cell string that Fig. 4 is provided by the embodiment of the present invention；Figure
A kind of vertical view of the 5 solar cell strings provided by the embodiment of the present invention；One kind that Fig. 6 is provided by the embodiment of the present invention
The structural schematic diagram of photovoltaic module.
Referring to Fig. 1, in embodiments of the present invention, the preparation method of photovoltaic module may include：
S101：It is ironed at third welding section by section is preset in welding, welding is divided into the first welding section, the second welding section
With third welding section.
Referring to Fig. 2 and Fig. 3, in embodiments of the present invention, 13 both ends of third welding section are respectively first welding
Section 11 and the second welding section 12.
In embodiments of the present invention, used welding 1 is usually photovoltaic welding belt, i.e. tin-coated copper strip or painting tin copper strips.
In this step, it is ironed first section will to be preset in welding 1, is third welding section 13 by ironed welding section.After this step,
Welding 1 is divided into 3 sections, respectively the first welding section 11, the second welding section 12 and third welding section 13.In third welding section 13
Both ends be respectively the first welding section 11 and the second welding section 12.The structure of entire welding 1 becomes both ends thickness intermediate thin at this time, and two
Hold a kind of welding structure that narrow centre is wide.
The value range of the length of above-mentioned third welding section 13 is usually 2.5mm between 3.0mm, including endpoint value.I.e.
In embodiments of the present invention, can by length in 2.5mm, the length of the third welding section 13 ironed to the welding section between 3.0mm
Degree can be exactly 2.5mm or exactly 3.0mm.
In this step, it will usually will be preset in the welding 1 the 60% of the section default section original thickness to
90%, the third welding section 13 is made.Before this step squeezes welding 1, usually exist in the thickness of welding 1 at this stage
0.23mm is between 0.30mm, including endpoint value；The width of welding 1 is usually in 0.2mm between 1.0mm, including endpoint value；I.e.
In embodiments of the present invention, the value range of the width of the first welding section 11 and the second welding section 12 be 0.2mm extremely
Between 1.0mm, including endpoint value；The first welding section 11 and the value range of the thickness of the second welding section 12 are
0.23mm is between 0.30mm, including endpoint value.After squeezing welding 1, it is extruded the thickness for being formed by third welding section 13
Degree is usually in 0.15mm between 0.25mm, including endpoint value；The width of third welding section 13 usually 0.6mm to 2.0mm it
Between, including endpoint value.It should be noted that in embodiments of the present invention, the thickness of the first welding section 11 and the second welding section 12
It can be exactly 0.23mm or 0.30mm, width can be exactly 0.2mm or 1.0mm；The thickness of third welding section 13 can be with
Exactly 0.15mm or 0.25mm, width can be exactly 0.6mm or 2.0mm.
In embodiments of the present invention, 13 surface of third welding section can be plane or curved surface at any angle, that is, exist
For being formed by the shape on 13 surface of third welding section after extruding and being not specifically limited in the embodiment of the present invention.Described
Three welding sections, 13 surface is two surfaces of third welding section 13 in a thickness direction, two tables being also extruded
Face.When 13 surface of third welding section is curved surface, the thickness of third welding section 13 is shortest distance between two surfaces.
S102：First welding Duan Yuyi solar battery sheets are welded, and by the second welding section and another solar cell
Piece welds, so that adjacent solar battery piece is serially connected into solar cell string.
Referring to Fig. 4 and Fig. 5, in this step, the first welding section 11 in welding 1 can be welded with a solar battery sheet 2
Connect, and the second welding section 12 in welding 1 welded with another solar battery sheet 2, and third welding section 13 can be located at it is adjacent
Between solar battery sheet 2；The as adjacent solar battery sheet 2 of above-mentioned two solar battery sheet 2, passes through in this step
Adjacent solar battery sheet 2 can be serially connected into solar cell string by welding 1.
Under normal conditions, solar battery sheet 2 have towards the sun and away from the sun while, the wherein face phase sun
One side be commonly referred to as sensitive side, the one side away from the sun is commonly referred to as backlight side, is usually located at 2 sensitive side of solar battery sheet
Surface be solar battery sheet 2 receive ambient surface.In embodiments of the present invention, the first welding section 11 and second is welded
With section 12 can respectively from the positive electrode of different solar battery sheets 2 and negative electrode, and solar battery sheet 2 under normal conditions
Positive electrode can be located at light side surface and the backlight side surface, even the first welding section of solar battery sheet 2 with negative electrode
11 with mutually being welded positioned at the positive electrode of 2 light side surface of a solar battery sheet when, the second welding section 12 can with positioned at it is another too
The negative electrode of 2 backlight side surface of positive energy cell piece mutually welds, to be connected into adjacent solar battery sheet 2 by welding 1
Solar cell string.And in solar cell string, the third welding section 13 in welding 1 be located at adjacent solar battery piece 2 it
Between.
Certainly, in embodiments of the present invention, it is not only often to be connected by two solar battery sheets 2 that solar cell, which is ganged up,
It constitutes, it will usually be serially connected by more solar battery sheets 2.In embodiments of the present invention for solar cell string
Included in solar battery sheet 2 specific number and be not specifically limited, be determined on a case-by-case basis；And in photovoltaic group
In part, it will usually be provided with multiple solar cell strings, the particular number in relation to the solar cell string being arranged in photovoltaic module
It is equally not specifically limited in embodiments of the present invention.And it is most basic relating to how to by two adjacent solar battery sheets 2
The method being serially connected is described in detail in the above content.
S103：Transparent cover plate is pressed on solar cell string sensitive side, and backboard is pressed on the solar cell string back of the body
Light side, photovoltaic module is made.
Referring to Fig. 6, in this step, transparent cover plate 3 can be pressed and solar cell string sensitive side, the transparent cover plate
3 need while ensureing good translucency, have certain structural strength, with protection setting in 3 backlight side of transparent cover plate
Solar cell string.Transparent cover plate 3 is made of glass or tempered glass under normal conditions.Certainly, the transparent cover plate 3
It can be made of other materials, the specific material in relation to transparent cover plate 3 in embodiments of the present invention and is not specifically limited, as long as
It can guarantee that certain translucency allows solar cell string to be absorbed into ambient, and can with certain structural strength
With protection setting 3 backlight side of transparent cover plate solar cell string.
Under normal conditions, in embodiments of the present invention, typically the transparent cover plate 3 is pressed by EVA packaging adhesive films
In the solar cell string sensitive side, and the backboard 4 is pressed on by the solar cell string by EVA packaging adhesive films and is carried on the back
Light side.EVA (ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer) packaging adhesive films are viscous
Put forth effort, durability, optical transparence etc. have superior performance, can be in photovoltaic module to transparent cover plate 3, backboard 4
And solar cell strings the effect of adherency and protection.
In this step, EVA is first typically arranged between solar cell string light side surface and transparent cover plate 3 to seal
Glued membrane is filled, and EVA packaging adhesive films are equally set between light side surface and backboard 4 in solar cell string, is passed through again later outer
Transparent cover plate 3 and backboard 4 are pressed together on the sensitive side and backlight side of solar cell string by power respectively, form class sandwich type knot
Structure, the photovoltaic module that the embodiment of the present invention is provided is made.Certainly, it is not limited to that EVA is used only in embodiments of the present invention
Packaging adhesive film can also use other kinds of packaging adhesive film, be not specifically limited in embodiments of the present invention.Certainly, made
Packaging adhesive film is preferably while with good optical transmission, stability and insulating properties etc..
During photovoltaic module is made in the pressing of this step, it will usually the third between adjacent cell piece be forced to be welded
Band section 13 is bent into S-shaped structure so that 13 surface of third welding section is bent into S-shaped cambered surface, and welding 1 is usual in this process
Certain pressure can be generated to the edge being in contact with welding 1 in solar battery sheet 2.
And a kind of preparation method for photovoltaic module that the embodiment of the present invention is provided, it is ironed first section will to be preset in welding 1,
To divide welding 1 for the first welding section 11, the second welding section 12 and third welding section 13, the wherein thickness of third welding section 13
Less than the thickness of the first welding section 11 and the second welding section 12, i.e., former welding is made to welding 1 in uneven thickness；Using weldering
When band 1 connects solar battery sheet 2, by ironed third welding section 13 as between two two neighboring solar battery sheets 2
The part being bent.Since the welding section between solar battery sheet 2 is relatively thin, while by ironed same of third welding section 13
When the width of third welding section 13 can be made to increase.Can be adjacent solar battery piece 2 when photovoltaic module is made in pressing
Between there are certain can be used for that elastically-deformable space occurs, while reduce welding 1 to the pressure of solar battery sheet 2 with
And pressure, and then reduce the hidden of solar battery sheet 2 and split risk.
In the present invention.It can be by the way that welding 1 to be bent to the mistake to be further reduced in pressing photovoltaic module in advance
Pressure of the welding 1 to solar battery sheet 2 in journey.Detailed content please refers to following inventive embodiments.
Referring to FIG. 7, the flow chart for another photovoltaic module preparation method that Fig. 7 is provided by the embodiment of the present invention.
Referring to Fig. 7, in embodiments of the present invention, the preparation method of photovoltaic module may include：
S201：It is ironed at third welding section by section is preset in welding, welding is divided into the first welding section, the second welding section
With third welding section.
In embodiments of the present invention, 13 both ends of third welding section are respectively the first welding section 11 and described second
Welding section 12.
This step is substantially the same with S101 in foregoing invention embodiment, and detailed content please refers to foregoing invention embodiment,
This is no longer repeated.
S202：By welding, predetermined position is bent from third welding section.
In embodiments of the present invention, can using welding 1 by solar battery sheet 2 be connected into solar cell string it
Before, first by welding 1 carry out pre-bend, i.e., in this step can first by welding 1 from third welding section 13 predetermined position into
Row bending.Third welding section 13 can be bent into S-shaped structure under normal conditions, so that 1 S-shaped structure of entire welding.Exist at this time
The structure of welding 1 is substantially in photovoltaic module made in S103 in the structure of welding 1 and foregoing invention embodiment in S202
It is identical.Certainly, according to the difference of actual conditions, by welding 1 from predetermined position in third welding section 13 bent after it is whole
A welding 1 can also be in other specific shapes, and the concrete structure in relation to welding 1 does not do specific limit in embodiments of the present invention
It is fixed.
S203：First welding Duan Yuyi solar battery sheets are welded, and by the second welding section and another solar cell
Piece welds, so that adjacent solar battery piece is serially connected into solar cell string.
S204：Transparent cover plate is pressed on solar cell string sensitive side, and backboard is pressed on the solar cell string back of the body
Light side, photovoltaic module is made.
In embodiments of the present invention, S203 and S204 is substantially the same with S102 and S103 in foregoing invention embodiment respectively,
Detailed content please refers to foregoing invention embodiment, is no longer repeated herein.
Solar battery sheet 2 is being connected by a kind of preparation method of photovoltaic module provided by the present invention using welding 1
Before solar cell string, can welding 1 be first subjected to pre-bend, i.e., it in this step can be first by welding 1 from third welding
Predetermined position is bent in section 13.Use 1 series-connected solar cells piece 2 of the welding after bending that can make solar cell
String is remained substantially in the shape after being pressed into photovoltaic module, to be further reduced when being pressed into photovoltaic module welding 1 to too
The pressure of positive energy cell piece 2, and then reduce the hidden of solar battery sheet 2 and split risk.
The present invention also provides a kind of photovoltaic module, which is specially by being carried in any of the above-described kind of inventive embodiments
Photovoltaic module made of the preparation method of the photovoltaic module of confession is prepared, detailed content please refer to foregoing invention embodiment, herein
No longer repeated.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part
Explanation.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The preparation method and photovoltaic module of a kind of photovoltaic module provided by the present invention are described in detail above.This
Specific case is applied in text, and principle and implementation of the present invention are described, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen
Enter in the protection domain of the claims in the present invention.
Claims (8)
1. a kind of preparation method of photovoltaic module, which is characterized in that the method includes：
It is ironed at third welding section by section is preset in welding, the welding is divided into the first welding section, the second welding section and institute
State third welding section；Wherein, the third welding section both ends are respectively the first welding section and the second welding section；
The first welding Duan Yuyi solar battery sheets are welded, and by the second welding section and another solar battery sheet
Welding, so that adjacent solar battery piece is mutually concatenated into solar cell string；
Transparent cover plate is pressed on the solar cell string sensitive side, and backboard is pressed on the solar cell string backlight
Side, photovoltaic module is made.
2. according to the method described in claim 1, it is characterized in that, it is described will in welding preset section it is ironed at third welding section packet
It includes：
The 60% to 90% of the section default section original thickness will be preset in the welding, the third welding is made
Section.
3. according to the method described in claim 2, it is characterized in that, the width of the first welding section and the second welding section
Value range be 0.2mm between 1.0mm, including endpoint value；The thickness of the first welding section and the second welding section
Value range be 0.23mm between 0.30mm, including endpoint value.
4. according to the method described in claim 3, it is characterized in that, the value range of the length of the third welding section is
2.5mm is between 3.0mm, including endpoint value.
5. according to the method described in any one of Claims 1-4 claim, which is characterized in that will be preset in welding described
After the ironed welding section at third of section, the method further includes：
By the welding, predetermined position is bent from the third welding section.
6. according to the method described in claim 1, it is characterized in that, described be pressed on the solar battery sheet by transparent cover plate
Sensitive side, and backboard is pressed on solar cell back light side and includes：
The transparent cover plate is pressed on the solar cell string sensitive side by EVA packaging adhesive films, and passes through EVA packaging plastics
The backboard is pressed on the solar cell string backlight side by film.
7. photovoltaic module according to claim 1, which is characterized in that the third welding section surface is plane or curved surface.
8. a kind of photovoltaic module, which is characterized in that the photovoltaic module is specially using any one of the claims 1 to 7 power
Profit requires the photovoltaic module prepared by the method.
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Application publication date: 20180803 |