CN208422940U - Composite packaging adhesive film of photovoltaic module and photovoltaic module - Google Patents
Composite packaging adhesive film of photovoltaic module and photovoltaic module Download PDFInfo
- Publication number
- CN208422940U CN208422940U CN201821227748.5U CN201821227748U CN208422940U CN 208422940 U CN208422940 U CN 208422940U CN 201821227748 U CN201821227748 U CN 201821227748U CN 208422940 U CN208422940 U CN 208422940U
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- China
- Prior art keywords
- glue film
- film portion
- photovoltaic module
- cell piece
- composite package
- Prior art date
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- 239000002313 adhesive film Substances 0.000 title claims description 52
- 239000002131 composite material Substances 0.000 title claims description 42
- 238000004806 packaging method and process Methods 0.000 title claims description 30
- 239000003292 glue Substances 0.000 claims abstract description 264
- 238000002834 transmittance Methods 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 8
- 241000446313 Lamella Species 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 abstract description 20
- 239000012528 membrane Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 33
- 238000003475 lamination Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000005574 cross-species transmission Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- 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
- Y02E10/52—PV systems with concentrators
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a photovoltaic module's compound encapsulation glued membrane and photovoltaic module, wherein, photovoltaic module's compound encapsulation glued membrane includes: the light transmittance of the second glue film part is smaller than that of the first glue film part; the plurality of first glue film parts and the plurality of second glue film parts are alternately arranged at intervals, and the upper surface of each first glue film part is used for arranging a battery piece. The utility model provides a second glued membrane position is in the region that non-battery piece covered, and second glued membrane portion is used for reflecting incident light to the battery piece on, makes this part reverberation absorb the utilization by the battery piece to increase the whole utilization ratio of setting a camera to photovoltaic module, improve photovoltaic module's output.
Description
Technical field
The utility model relates to photovoltaic art more particularly to the composite package glue films and photovoltaic module of a kind of photovoltaic module.
Background technique
Existing double glass photovoltaic modulies use " transparent cover plate glass+front layer transparent enclosure glue film+several electricity from front to the back side
The structural order of pond string+backing layer packaging adhesive film+back-panel glass " is laid with lamination, then makes front layer transparent enclosure by laminating process
Glue film and backing layer packaging adhesive film crosslink reaction, and cell piece and transparent cover plate glass and back-panel glass is made to be bonded as entirety, make
Glass structure photovoltaic module in pairs.
It is existing to have in the related technology using transparent adhesive film as backing layer packaging adhesive film, but using transparent adhesive film as back
The delivery efficiency of the photovoltaic module of layer packaging adhesive film is low.
In order to improve the output power of photovoltaic module, also have using whole white glue film as backing layer packaging adhesive film, to increase
Backing layer utilizes this part light effectively by cell piece the reflectivity of incident light, to improve the output of component.
But it is had the following problems using whole white glue film as backing layer packaging adhesive film:
1) white glue film has mobility in heated crosslink, and can spill over cell piece front, generate flange, white ask of overflowing
It inscribes, and spill over the positive white glue film of cell piece to block cell piece, reduces cell piece light income.
2) white glue film easily causes cell piece crack or broken compared to the poor fluidity of transparent adhesive film in lamination process
Piece.
3) white glue film price is usually 1.5 times of similar transparent adhesive film, using whole white glue film as backing layer packaging plastic
Film undoubtedly can be such that the material cost of solar double-glass assemblies greatly increases.
Utility model content
One of purpose of the utility model is the composite package glue film and photovoltaic module for proposing a kind of photovoltaic module, until
It is few to solve the problems, such as that the output power of photovoltaic module is low to a certain extent.
Some embodiments of the utility model provides a kind of composite package glue film of photovoltaic module comprising: Duo Ge
One glue film portion and multiple second glue films portion, the light transmittance in second glue film portion are less than the light transmittance in first glue film portion；Institute
It states multiple first glue films portion and the multiple second glue film portion and alternates setting, the upper surface in first glue film portion is for setting
Set cell piece.
Optionally, the upper surface in second glue film portion is equipped with third glue film portion, third glue film portion and the first glue film
Material used by portion is identical.
Optionally, the sum of the thickness in second glue film portion and the thickness in third glue film portion are equal to first glue film
The thickness in portion.
Optionally, third glue film portion and the first glue film portion are integrally formed.
Optionally, it interpenetrates to form interconnecting piece between first glue film portion and second glue film portion.
Optionally, the fluidity of molten in first glue film portion is better than the fluidity of molten in second glue film portion.
Optionally, first glue film portion is made of transparent adhesive film.
Optionally, second glue film portion is made of white glue film.
Optionally, the integral thickness range of the composite package glue film is 0.02mm~1.2mm.
Optionally, the thickness range in second glue film portion is 0.01mm~0.6mm.
Some embodiments of the utility model provides a kind of photovoltaic module comprising cell piece and above-mentioned composite package
Glue film.
Optionally, photovoltaic module includes double glass photovoltaic modulies, and double glass photovoltaic modulies according to stacking gradually from top to bottom
Sequence, including preceding glass sheet, front layer packaging adhesive film, battery lamella, backing layer packaging adhesive film and back-panel glass, the backing layer encapsulation
Glue film uses the composite package glue film.
Optionally, the cell piece includes single side cell piece and double-side cell piece.
Optionally, photovoltaic module includes multiple cell pieces, the area that the composite package glue film is covered by each cell piece
Domain is first glue film portion.
Based on the above-mentioned technical proposal, the utility model at least has the advantages that
In some embodiments, light transmittance of the light transmittance in the second glue film portion less than the first glue film portion, the second glue film position
In the region of non-battery piece covering, the second glue film portion keeps this part reflected light electric for reflecting incident light to cell piece
Pond piece is absorbed and utilized, and to increase photovoltaic module integrally to the utilization rate of light, improves the output power of photovoltaic module.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the schematic diagram for double glass photovoltaic modulies that some embodiments of the utility model provide；
Fig. 2 is the first schematic cross-section of the composite package glue film that some embodiments of the utility model provide；
Fig. 3 is the second schematic cross-section of the composite package glue film that some embodiments of the utility model provide.
Numbering in the drawing:
Glass sheet before 1-；
2- front layer packaging adhesive film；
3- battery lamella；
4- backing layer packaging adhesive film；The first glue film of 41- portion；The second glue film of 42- portion；43- interconnecting piece；
5- back-panel glass.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
In the following description, photovoltaic module is suitable with light incidence photovoltaic module according to the sequence stacked gradually from top to bottom
Sequence is consistent.And the upper surface of composite package glue film first receives incident light relative to its lower surface.
Some embodiments provide a kind of composite package glue films of photovoltaic module comprising multiple first glue films portion 41 and more
A second glue film portion 42, the light transmittance of the light transmittance in the second glue film portion 42 less than the first glue film portion 41.
In some embodiments, multiple first glue films portion 41 and multiple second glue films portion 42 alternate setting, the first glue
The surface in film portion 41 is for being arranged cell piece.In the embodiment, multiple second glue films portion 42, which is formed, is similar to latticed structure,
Multiple first glue films portion 41 is filled in each space of the second glue film portion 42 formation.The size and cell piece in the first glue film portion 41
Size it is consistent, or slightly larger than the size of cell piece.Under encapsulation state, the position of each cell piece is correspondingly provided with the first glue film portion
41.That is: the overlay area that the first glue film portion 41 is located at cell piece.In the state that cell piece is arranged in array, the first glue film portion
41 are also arranged in array accordingly.
For cell piece under the upper surface in the first glue film portion 41, encapsulation state, the second glue film portion 42 is located at photovoltaic module
Non-battery piece overlay area, glass sheet is re-reflected on cell piece before the second glue film portion 42 reflects incident light to, and makes this part
Reflected light is absorbed and utilized by cell piece, to increase photovoltaic module integrally to the utilization rate of light, improves the output power of photovoltaic module.
Under encapsulation state, for cell piece to be arranged, i.e. the first glue film portion 41 is located at photovoltaic group on the surface in the first glue film portion 41
The cell piece overlay area of part, since the light transmittance in the first glue film portion 41 is high, in encapsulation lamination process, the first glue film portion 41 is
Make to spill over cell piece front, the unfavorable effect of shading will not be caused, reduces the encapsulation loss of photovoltaic module, improve photovoltaic
The output power of component.
Furthermore the light transmittance in the first glue film portion 41 is higher than the light transmittance in the second glue film portion 42, and cell piece is set to the first glue film
The surface in portion 41, it may be assumed that cell piece overlay area corresponds to the first high glue film portion 41 of light transmittance, in the cell piece using generating electricity on two sides
In the case where, reflected light directly can be incident on the back side of cell piece by the first glue film portion 41, so that double-side cell piece be made to obtain
It is generated electricity with light.
In some embodiments, as shown in Figure 2 and Figure 3, the upper surface in the second glue film portion 42 is equipped with third glue film portion, third
Glue film portion is identical as material used by the first glue film portion 41.The first glue film portion between two neighboring second glue film portion 42
41 surface is for being arranged cell piece.The upper surface in the second glue film portion 42 is equipped with identical as material used by the first glue film portion 41
Third glue film portion, encapsulation lamination process in, third glue film portion will not lead to shading not spilling over cell piece front
Sharp effect reduces the encapsulation loss of photovoltaic module, improves the output power of photovoltaic module.
In some embodiments, third glue film portion is identical as material used by the first glue film portion 41, and third glue film portion can
To be integrally formed with the first glue film portion 41.Or it may also be said that the first glue film portion is also distributed in the upper surface in the second glue film portion 42
41.It should be noted that close to the surface of cell piece under " upper surface " the namely encapsulation state in the second glue film portion 42.
In some embodiments, the sum of the thickness in the second glue film portion 42 and the thickness in third glue film portion are equal to the first glue film portion
41 thickness.
Cell piece is set to the first glue film portion 41, i.e. cell piece is set between two neighboring second glue film portion 42, encapsulation state
Under, the second glue film portion 42 is located at the non-battery piece overlay area of photovoltaic module, and the second glue film portion 42 passes through the covering of non-battery piece
The reflection of generation incident light in region is re-reflected on cell piece to preceding glass sheet, this part reflected light is absorbed and utilized by cell piece, is increased
Photovoltaic module has been added integrally to the utilization rate of light, to improve the output power of photovoltaic module.
Under encapsulation state, for cell piece to be arranged, i.e. the first glue film portion 41 is located at photovoltaic group on the surface in the first glue film portion 41
The cell piece overlay area of part, since the light transmittance in the first glue film portion 41 is high, in encapsulation lamination process, the first glue film portion 41 is
The unfavorable effect of shading will not be led to by making to spill over cell piece front, reduced the encapsulation loss of photovoltaic module, improved photovoltaic
The output power of component.
Furthermore the light transmittance in the first glue film portion 41 is higher than the second glue film portion 42, and cell piece is set to the table in the first glue film portion 41
Face, cell piece overlay area correspond to the first high glue film portion 41 of light transmittance, using the cell piece of generating electricity on two sides, instead
Penetrating light directly can be incident on the back side of cell piece by the first glue film portion 41, so that double-side cell piece light be enable to generate electricity.
In some embodiments, it interpenetrates to form interconnecting piece 43 between the first glue film portion 41 and the second glue film portion 42.
In the embodiment that multiple first glue films portion 41 and multiple second glue films portion 42 alternate setting, interconnecting piece 43
The position that circumferential direction in the first glue film portion 41 is connect with the second glue film portion 42.
It is equipped with and material identical third glue film portion used by the first glue film portion 41 in the upper surface in the second glue film portion 42
Embodiment in, interconnecting piece 43 is located at the position that the circumferential direction in the first glue film portion 41 is connect with the second glue film portion 42, is also located at second
The position that the upper surface in glue film portion 42 is connect with third glue film portion.
In some embodiments, the fluidity of molten in the first glue film portion 41 is better than the fluidity of molten in the second glue film portion 42.
Since the surface in the first glue film portion 41 is the first good glue film of fluidity of molten for cell piece, the overlay area of cell piece to be arranged
The problem of portion 41 avoids composite package glue film 41 fold of the first glue film portion when packaged, causes cell piece crack and sliver.
In some embodiments, the second glue film portion 42 is made of white glue film.The reflectivity of white glue film is higher, and second
Glue film portion 42 is made of white glue film, is re-reflected on cell piece conducive to preceding glass sheet is reflected incident light to, is made to be fed through
It is absorbed and utilized again by cell piece after the light reflection of non-battery piece overlay area, increases component integrally to the utilization rate of light, improve
The output power of component.
It should be noted that the second glue film portion 42 is not limited to be made of white glue film, the high glue film of other reflectivity
It can be with.
In some embodiments, the first glue film portion 41 is made of transparent adhesive film.The light transmittance of transparent adhesive film is high, transparent adhesive tape
Film is located at the cell piece overlay area of photovoltaic module, in encapsulation lamination process, even if transparent adhesive film spills over cell piece front then
The unfavorable effect that not will lead to shading reduces the encapsulation loss of photovoltaic module.And the transparent adhesive film of the first glue film portion 41 use
Relative flow is fabulous, in encapsulation lamination process, not will lead to cell piece crack or fragmentation.
In some embodiments, third glue film portion is also made of transparent adhesive film.
In some embodiments, the integral thickness range of composite package glue film is 0.02mm~1.2mm.Preferably 0.6mm.
The above-mentioned integral thickness range of composite package glue film had both provided sufficiently thick buffer layer and has avoided glass in photovoltaic module manufacturing process
Cell piece pressure break is also provided enough glue films for each adhering components of photovoltaic module together by glass.Composite package glue film
Too thin that said effect may be not achieved, too thick it will cause unnecessary increased costs.
In some embodiments, the thickness range in the second glue film portion 42 is 0.01mm~0.6mm, preferably 0.3mm.
In the embodiment that multiple first glue films portion 41 and multiple second glue films portion 42 alternate setting, composite package glue
The integral thickness of film can be equal to the thickness in the second glue film portion 42, and the thickness in the second glue film portion 42 can be equal to the first glue film portion 41
Thickness.
In the embodiment in the upper surface setting third glue film portion in the second glue film portion 42, the integral thickness of composite package glue film
The thickness that the second glue film portion 42 can be equal to adds the thickness in third glue film portion, and the thickness in the second glue film portion 42 adds third glue film
The thickness in portion is also equal to the thickness in the first glue film portion 41 simultaneously.
It is transparent adhesive film portion in the first glue film portion 41, the second glue film portion 42 is to encapsulate shape in the embodiment in white glue film portion
Under state, the first glue film portion 41 is located at the cell piece overlay area of photovoltaic module, in encapsulation lamination process, even if transparent adhesive film overflows
To cell piece front, the unfavorable effect of shading will not be generated, solve white glue film be located at cell piece overlay area flange,
It overflows white problem.The transparent adhesive film relative flow that the first glue film portion uses simultaneously is fabulous, in encapsulation lamination process, not will lead to
The crack or fragmentation of cell piece.It solves white glue film and is located at cell piece overlay area, cell piece crack caused by fold and broken
Piece problem.
It, can be to white size film in the embodiment that multiple transparent adhesive film portions and multiple white glue film portions alternate setting
Precrosslink is carried out, the white size membrane fluidity by part precrosslink reduces, and reduces it to a certain extent and spills over cell piece front
A possibility that.
It is possible to further layer of transparent glue film compound on white glue film, the white glue film of opposite precrosslink is improved
The weather-proof reliability of component.This is because the white glue film of precrosslink, reduces the bonding force of each attachment of component, component is caused to seal
Filling reliability and weatherability reduces.
In the embodiment that multiple second glue films portion 42 and multiple first glue films portion 41 alternate setting, the first glue film portion
41 be transparent adhesive film portion, and the second glue film portion 42 is white glue film portion, which forms white similar to one
The net of color, hollow-out part are filled with transparent adhesive film, make to be combined into entirety.
It is arranged and the embodiment in the material identical third glue film portion in the first glue film portion 41 in 42 upper surface of the second glue film portion
In, the first glue film portion 41 and third glue film portion are transparent adhesive film portion, and the second glue film portion 42 is white glue film portion.Second glue film portion 42
Upper surface be high permeable layers, the layer where the second glue film portion 42, similar to a white net, hollow-out part is filled with transparent adhesive tape
Film makes to be combined into a unbroken layer.
Setting is alternated using multiple white glue films and multiple transparent adhesive films, non-battery piece overlay area corresponds to white
Glue film, cell piece overlay area are transparent adhesive film, and using the cell piece of generating electricity on two sides, the cell piece back side can not
It is blocked to be able to light power generation by white glue film (relative to composite package glue film all using white glue film).
In addition, transparent adhesive film is more at low cost than white glue film, partially transparent glue film replaces white glue film, relative to composite package
Glue film all can reduce the material cost of entire photovoltaic module using white glue film.
Towards the part of cell piece all it is transparent adhesive film in the present embodiment, avoids white glue film and spill over cell piece front,
It solves in the related technology, after white glue film is arranged in cell piece overlay area, the flange that white glue film generates, white problem of overflowing, this
Embodiment improves photovoltaic module to the utilization rate of incident light, improves the output power of photovoltaic module.
It is all transparent adhesive film that cell piece overlay area is corresponding in the present embodiment, and transparent adhesive film is by heat cross-linking phase to flowing
Property it is strong, buckling problems are not present, avoid composite package glue film all using white glue film because of battery caused by white glue film fold
The crack and sliver problem of piece, the present embodiment reduce lamination fraction defective, it is ensured that the weather-proof reliability of photovoltaic module.
Some embodiments provide a kind of photovoltaic modulies comprising cell piece and above-mentioned composite package glue film.
In some embodiments, as shown in Figure 1, photovoltaic module includes double glass photovoltaic modulies, double glass photovoltaic modulies are according to certainly
The sequence stacked gradually under above, including preceding glass sheet 1, front layer packaging adhesive film 2, battery lamella 3, backing layer packaging adhesive film 4 and back
Glass sheet 5, backing layer packaging adhesive film 4 use composite package glue film.
Front layer packaging adhesive film 2 and 4 cross-linking reaction of backing layer packaging adhesive film, it may be assumed that melt after two layers of glue film is heated and become flowable
Colloid, by all material plastic packaging of photovoltaic module to together, it is cooling after glue film solidify, each component of photovoltaic module is packaged into
One entirety.
In some embodiments, cell piece includes single side cell piece and double-side cell piece.Double-side cell piece is relative to single side
Cell piece can be improved the output power of photovoltaic module.
In some embodiments, battery lamella 3 includes multiple cell pieces.Each cell piece series and parallel combines to form cell piece
Layer 3.
In some embodiments, photovoltaic module includes multiple cell pieces, the area that composite package glue film is covered by each cell piece
Domain is the first glue film portion 41.
In some embodiments, photovoltaic module includes multiple cell pieces, and multiple cell pieces press array arrangement, multiple first glue
Also array arrangement is pressed accordingly in film portion 41.
Second glue film portion 42 is according to cell piece arrangement situation design, so that the second glue film portion 42 accurately corresponds to when stacking laying
The non-battery piece overlay area of double glass photovoltaic modulies.
In some embodiments, photovoltaic module further includes the terminal box for having electric connection with battery lamella.
In some embodiments, preceding glass sheet is coated glass, preferably super white patterned tempered glass.Super white patterned tempering
The light transmission rate of glass is preferable, can reduce the incidence loss of light.Pattern glass is patterned structure towards cell piece part, is conducive to
The light that second glue film portion 42 is reflected on glass is re-reflected on cell piece.It is good rigid, anti-that tempering has glass
Impact property, security performance.
In some embodiments, the thickness range of the super white patterned tempered glass of plated film is 1.5mm~4.0mm, preferably
2.5mm.Excessively thin glass will cause the bad mechanical property of photovoltaic module.The weight that blocked up glass will lead to photovoltaic module increases
Add, increases material cost, transportation cost and installation difficulty.
In some embodiments, front layer packaging adhesive film is high saturating packaging adhesive film, avoids its blocking and absorb to light as far as possible,
To guarantee that light is irradiated on cell piece as far as possible.The light transmittance of high packaging adhesive film thoroughly is higher, it is seen that light and near infrared light (380nm
~1100nm) transmitance reach 93% or more.
In some embodiments, the thickness range of front layer packaging adhesive film is 0.1mm~1.2mm, preferably 0.6mm.The thickness
Degree had both provided sufficiently thick buffer layer and glass in photovoltaic module manufacturing process is avoided to also provide cell piece pressure break enough
Glue film by each adhering components of photovoltaic module together.Front layer packaging adhesive film is too thin may to be not achieved said effect, too it is thick then
It will cause unnecessary increased costs.
In some embodiments, battery lamella, that is, solar battery string, used in cell piece may include single side battery
Piece and double-side cell piece also include Monocrystalline silicon cell piece and polycrystalline silicon battery plate, preferably two-sided monocrystalline solar cell piece, phase
For single side battery, the generated energy of photovoltaic module is improved.
In some embodiments, back-panel glass be tempering or semi-tempered glass, back-panel glass thickness range 1.5mm~
4.0mm, preferably 2.5mm.Excessively thin glass will cause the bad mechanical property of photovoltaic module.Blocked up glass then will lead to photovoltaic
The weight of component increases, and increases material cost, transportation cost and installation difficulty.
In some embodiments, the backing layer packaging adhesive film 4 of double glass photovoltaic modulies uses composite package glue film.Composite package glue
For packaging plastic film layer towards cell piece, cell piece gap corresponds to the white meshing of composite package glue film to the height of film thoroughly.So both
White, flange phenomenon of overflowing is avoided that caused by single layer white glue film；It again can entering the non-battery piece overlay area such as cell piece gap
It penetrates glass sheet before light is reflected into be re-reflected into cell piece surface and be absorbed and used, improves component output power, single side is sent out
Electrical component and generating electricity on two sides component are equally applicable；The corresponding high packaging adhesive film thoroughly in cell piece overlay area has more than white glue film
Good mobility avoids cell piece crack caused by packaging adhesive film fold and crushing phenomenon, improves double glass photovoltaic modulies
Production yield and qualitative reliability；Using white grid composite package glue film, reduces white adhesive film material dosage, reduce light
Lie prostrate the production cost of component.
In the description of the present invention, it should be understood that being limited using the words such as " first ", " second ", " third "
Determine components, it is only for convenient for distinguishing to above-mentioned parts, there is no Stated otherwise such as, there is no special for above-mentioned word
Meaning, therefore should not be understood as the limitation to scope of protection of the utility model.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (14)
1. a kind of composite package glue film of photovoltaic module characterized by comprising multiple first glue films portion (41) and multiple second
Glue film portion (42), the light transmittance in second glue film portion (42) are less than the light transmittance in first glue film portion (41)；
The multiple first glue film portion (41) and the multiple second glue film portion (42) alternate setting, first glue film portion
(41) upper surface is for being arranged cell piece.
2. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that second glue film portion (42)
Upper surface is equipped with third glue film portion, and third glue film portion is identical as material used by the first glue film portion (41).
3. the composite package glue film of photovoltaic module as claimed in claim 2, which is characterized in that second glue film portion (42)
The sum of thickness and the thickness in third glue film portion are equal to the thickness in first glue film portion (41).
4. the composite package glue film of photovoltaic module as claimed in claim 2, which is characterized in that third glue film portion and first
Glue film portion (41) is integrally formed.
5. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that first glue film portion (41) with
It interpenetrates to form interconnecting piece (43) between second glue film portion (42).
6. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that first glue film portion (41)
Fluidity of molten is better than the fluidity of molten in second glue film portion (42).
7. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that first glue film portion (41) is adopted
It is made of transparent adhesive film.
8. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that second glue film portion (42) is adopted
It is made of white glue film.
9. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that the composite package glue film it is whole
Body thickness range is 0.02mm~1.2mm.
10. the composite package glue film of photovoltaic module as described in claim 1, which is characterized in that second glue film portion (42)
Thickness range be 0.01mm~0.6mm.
11. a kind of photovoltaic module, which is characterized in that including cell piece and such as the described in any item compound envelopes of claim 1~10
Fill glue film.
12. photovoltaic module as claimed in claim 11, which is characterized in that including double glass photovoltaic modulies, double glass photovoltaic groups
Part is according to the sequence stacked gradually from top to bottom, including preceding glass sheet (1), front layer packaging adhesive film (2), battery lamella (3), backing layer
Packaging adhesive film (4) and back-panel glass (5), the backing layer packaging adhesive film (4) use the composite package glue film.
13. photovoltaic module as claimed in claim 11, which is characterized in that the cell piece includes single side cell piece and two-sided electricity
Pond piece.
14. photovoltaic module as claimed in claim 11, which is characterized in that including multiple cell pieces, the composite package glue film
The region covered by each cell piece is first glue film portion (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227748.5U CN208422940U (en) | 2018-08-01 | 2018-08-01 | Composite packaging adhesive film of photovoltaic module and photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227748.5U CN208422940U (en) | 2018-08-01 | 2018-08-01 | Composite packaging adhesive film of photovoltaic module and photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN208422940U true CN208422940U (en) | 2019-01-22 |
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| CN (1) | CN208422940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735847A (en) * | 2018-08-01 | 2018-11-02 | 珠海格力电器股份有限公司 | Composite packaging adhesive film of photovoltaic module and photovoltaic module |
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2018
- 2018-08-01 CN CN201821227748.5U patent/CN208422940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735847A (en) * | 2018-08-01 | 2018-11-02 | 珠海格力电器股份有限公司 | Composite packaging adhesive film of photovoltaic module and photovoltaic module |
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