CN107863406A - A kind of reflectance coating and photovoltaic module and preparation method for photovoltaic module - Google Patents
A kind of reflectance coating and photovoltaic module and preparation method for photovoltaic module Download PDFInfo
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- CN107863406A CN107863406A CN201711323396.3A CN201711323396A CN107863406A CN 107863406 A CN107863406 A CN 107863406A CN 201711323396 A CN201711323396 A CN 201711323396A CN 107863406 A CN107863406 A CN 107863406A
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- photovoltaic module
- reflectance coating
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- 238000000576 coating method Methods 0.000 title claims abstract description 35
- 239000011248 coating agent Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000010410 layer Substances 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 24
- 239000002344 surface layer Substances 0.000 claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 12
- 238000005538 encapsulation Methods 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000004907 flux Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001579 optical reflectometry Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- 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
- 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
-
- 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
- Y02E10/52—PV systems with concentrators
-
- 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)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of reflectance coating for photovoltaic module and employs the photovoltaic module of the reflectance coating, a kind of reflectance coating for photovoltaic module, include adhesive linkage and pet layer from down to up, the reflectance coating is only used for covering the region on the welding and/or photovoltaic module on photovoltaic module between each cell piece；The pet layer includes basic unit and surface layer, and the surface layer has some micropores, and transparent intermediate layer is additionally provided between the basic unit and surface layer, and the one side that the basic unit and intermediate layer contact is coated with reflector layer.After welding is covered using the reflectance coating of the present invention, then EVA encapsulation is carried out, due to there is PET to play buffer action, the film of flux residue on welding will not directly contact with encapsulation EVA, thoroughly prevent the adverse consequences that chemical reaction between the two is brought.Simultaneously, micropore and reflector layer can reflect sunlight to packaged glass, by the angle and combination that adjust micropore, can meets sunlight according on certain angle reflection to packaged glass, pass through the reflection of packaged glass again, the working region of cell piece is irradiated to, so as to improve the sunlight utilization ratio of photovoltaic module.
Description
Technical field
It is particularly a kind of for the reflectance coating and photovoltaic module of photovoltaic module and preparation the present invention relates to photovoltaic cell field
Method.
Background technology
Photovoltaic welding belt is applied to the connection between photovoltaic module cell piece, plays the conductive important function for gathering electricity.In order to protect
The welding of card welding and cell piece is firm and prevents welding from corroding, and welding surface is coated with tin layers, and therefore, meeting band helps on welding
Solder flux remains, and after photovoltaic module completes EVA encapsulation, these film of flux residue will directly contact with EVA, and occur slow
Chemical reaction, produce bubble, cause whole photovoltaic module quality decline.Meanwhile in existing photovoltaic module, what welding occupied
White space between region and cell piece, sunlight can arc reflected directly into exterior space or be absorbed, be caused above
The sunlight utilization ratio of single photovoltaic module reduces.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is an object of the invention to provide a kind of reflection for photovoltaic module
Film and photovoltaic module and preparation method.
To reach above-mentioned purpose, the technical solution adopted for the present invention to solve the technical problems is：
A kind of reflectance coating for photovoltaic module, it is only used for covering including adhesive linkage and pet layer, the reflectance coating from down to up
Region on welding and/or photovoltaic module on lid photovoltaic module between each cell piece；The pet layer includes basic unit and surface layer,
The surface layer has some micropores, and transparent intermediate layer is additionally provided between the basic unit and surface layer, and the basic unit and intermediate layer connect
Tactile one side is coated with reflector layer.
Further, length direction rule arrangement of the every group of micropore along reflectance coating.
After welding is covered using the reflectance coating of the present invention, then EVA encapsulation is carried out, due to there is PET to play buffer action, weldering
The film of flux residue taken will not directly be contacted with encapsulation EVA, and the chemical reaction thoroughly prevented between the two is brought not
Good consequence.Meanwhile micropore and reflector layer can reflect sunlight to packaged glass, by the angle and the combination side that adjust micropore
Formula, it is possible to meet sunlight being irradiated to according to the reflection on certain angle reflection to packaged glass, then by packaged glass
The working region of cell piece, so as to improve the sunlight utilization ratio of photovoltaic module.
Preferably, the pet layer is black or the parameters of RGB tri- are equal to or the color less than 10.Using black PET, subtract
The light reflectivity of few component, reduce pollution of the dazzle to environment.
Preferably, the pet layer includes basic unit and surface layer, and the surface layer is that black or the parameters of RGB tri- are equal to or be less than
10 color.
Preferably, the surface layer has some micropores, and transparent intermediate layer is additionally provided between the basic unit and surface layer, described
The one side of basic unit and intermediate layer contact is coated with reflector layer.
Preferably, the micropore is arranged according to rule.
In the surface layer of pet layer, some micropores are set, for example, arranged according to matrix, text profile arrangement or it is other it is regular,
Periodic arrangement, sunlight had both eliminated dazzle pollution, with regard to that can bring aesthetic feeling by the reflected light such as starbright of these micropores.
Preferably, the micropore is arranged in groups, and every group of micropore includes a vertical micropore and each one of left and right leans outward
Oblique micropore.
Preferably, the basic unit is provided with microprism, and below every group of micropore, the crest line of the microprism is positioned at vertical
The underface of straight micropore, two side are vertical with the axis of two outward-dipping micropores respectively.
Communicated between every group of micropore in bottom, therefore, the sunlight incident from any micropore all may be from other micro-
Reflected away in hole.When setting microprism under vertical micropore, the sunlight of noon vertical incidence is only capable of from vertical micropore
Inject, then gone out by two sides of microprism from two inclined micro-voided reflectives, the sunlight reflected away is by encapsulation glass
The secondary reflection again of glass, the working region of cell piece can be irradiated to, so, both eliminate dazzle pollution, and improved the profit of sunlight again
With rate, the solar energy conversion efficiency of whole photovoltaic module is improved.
The present invention also provides a kind of photovoltaic module, including back board module, framework, glass panel, multiple cell pieces, is connected to
The welding on cell piece surface and any of the above-described described reflectance coating for photovoltaic module, the reflectance coating are covered on welding
And/or the region on photovoltaic module between each cell piece.
Preferably, the cell piece and framework are respectively provided with the top layer of black.
The present invention also provides a kind of preparation method of photovoltaic module, described is used for photovoltaic module including the use of any of the above-described
Reflectance coating covering welding surface after, then the step of carry out EVA encapsulation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Numeral and the title of the corresponding component represented by letter in figure：
1-PET layers；2- adhesive linkages；11- surface layers；12- basic units；13- intermediate layers；The inclined micropores of 112-；111- is vertical
Micropore；121- prisms.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to reach the purpose of the present invention, as shown in figure 1, a kind of reflectance coating for photovoltaic module, includes from down to up
Adhesive linkage 2 and pet layer 1, the reflectance coating be only used for cover photovoltaic module on welding and/or photovoltaic module on each cell piece it
Between region.
After welding is covered using the reflectance coating of the present invention, then EVA encapsulation is carried out, due to there is pet layer to play buffer action,
Film of flux residue on welding will not directly contact with encapsulation EVA, what the chemical reaction thoroughly prevented between the two was brought
Adverse consequences.Adhesive linkage can be PUR coating or other adhesive coatings.
In certain embodiments, in order to further obtain low dazzle characteristic, the pet layer is that black or the parameters of RGB tri- are equal
Color equal to or less than 10.Using black PET, the light reflectivity of component is reduced, reduces pollution of the dazzle to environment.
In certain embodiments, the pet layer includes basic unit and surface layer, and the surface layer is that black or the parameters of RGB tri- are impartial
In or less than 10 color.
As shown in Fig. 2 in certain embodiments, the surface layer 11 has some micropores, the basic unit 12 and surface layer 11 it
Between be additionally provided with transparent intermediate layer 13, the one side that the basic unit 12 and intermediate layer 13 contact is coated with reflector layer.
Preferably, the micropore is arranged according to rule.
Wherein, some micropores are set in the surface layer 11 of pet layer, such as arranged according to matrix, text profile arrangement or other
Regular, periodic arrangement, sunlight had both eliminated dazzle pollution, just energy band by the reflected light such as starbright of these micropores
Carry out aesthetic feeling.
In example as shown in Figure 2, the micropore is arranged in groups, and every group of micropore includes a vertical micropore 111 and a left side
Right each outward-dipping micropore 112.
At the same time it can also set microprism 121 in the basic unit, and below every group of micropore, the microprism 121
Crest line be located at the underface of vertical micropore 111, axis of two side respectively with two outward-dipping micropores 112 hangs down
Directly.
Communicated between every group of micropore in bottom, therefore, the sunlight incident from any micropore all may be from other micro-
Reflected away in hole.When in vertical 111 times setting microprisms 121 of micropore, the sunlight of noon vertical incidence is only capable of from vertical
Injected in micropore 111, then reflected away, reflect away from two inclined micropores 112 by two sides of microprism 121
Sunlight passes through the secondary reflection again of packaged glass, can be irradiated to the working region of cell piece, so, has both eliminated dazzle pollution, again
The utilization rate of sunlight is improved, improves the solar energy conversion efficiency of whole photovoltaic module.Wherein, sunlight reflects through intermediate layer 13
The angle change brought is, it is necessary to count, to the final angle for determining to tilt micropore 112.
If polyhedral cone shaped microprism is provided that below every group of micropore, and per one side not with vertical micropore
Vertical plane where axis is orthogonal (i.e. any straight line perpendicular to certain one side, not on the vertical plane).Now, tilt micro-
The quantity in hole is identical with the side quantity of microprism, and its inclination angle is determined by the angle of corresponding side surface, the refractive index in intermediate layer,
As long as ensuring by the incident sunshine of vertical micropore, by each offside reflection of taper microprism, the inclination as corresponding to each side
Micropore projects.
In certain embodiments, length direction rule arrangement of the every group of micropore along reflectance coating.For example, arranged by matrix, or
Person's dislocation is continued in all directions or two sides continuously arrangement etc..Wherein, according to different different regions latitudes, according to the incidence of sunlight
Angle, the axis of every group of micropore and the angle on pet layer surface are suitably adjusted, meanwhile, to two sides of prism in basic unit
Angle be adjusted correspondingly, it is possible to sunlight is reflexed to the working region of cell piece, wherein, difference group micropores axle
Line can be different from the angle of PEY layer surfaces, e.g. in periodically variable, to meet to the morning, noon, afternoon not
Reflection with sunlight needs.For example, further, vertical micropore can be made funnel shaped, there is facing surface in its aperture
Lower bottom is gradually reduced, and can so improve it and import the scope of sunlight.Using this programme, can both be carried with reflecting part sunlight
The utilization ratio of high sunlight, while the rigors to dazzle pollution can be met again, meet the needs of different application occasion.
The present invention also provides a kind of photovoltaic module, including back board module, framework, glass panel, multiple cell pieces, is connected to
The welding on cell piece surface and any of the above-described described reflectance coating for photovoltaic module, the reflectance coating are covered on welding
And/or the region on photovoltaic module between each cell piece.
Preferably, the cell piece and framework are respectively provided with the top layer of black.
The present invention also provides a kind of preparation method of photovoltaic module, described is used for photovoltaic module including the use of any of the above-described
Reflectance coating covering welding surface after, then the step of carry out EVA encapsulation.
Photovoltaic module provided by the invention and using this method prepare photovoltaic module, can possess prevent scaling powder with
Problem caused by the reaction of EVA encapsulating materials, and pollution of the dazzle to environment can be further reduced, in addition, if needing, also
It can beautify the environment and improve the utilization ratio of sunlight.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow ordinary skill people
Member can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all cover within the scope of the present invention.
Claims (10)
1. a kind of reflectance coating for photovoltaic module, it is characterised in that from down to up including adhesive linkage and pet layer, the reflection
Film is only used for covering the region on the welding and/or photovoltaic module on photovoltaic module between each cell piece；The pet layer includes base
Layer and surface layer, the surface layer have some micropores, are additionally provided with transparent intermediate layer between the basic unit and surface layer, the basic unit and
The one side of intermediate layer contact is coated with reflector layer.
2. the reflectance coating according to claim 1 for photovoltaic module, it is characterised in that the pet layer is black or RGB
Three parameters are equal to or the color less than 10.
3. the reflectance coating according to claim 1 for photovoltaic module, it is characterised in that the surface layer is black or RGB
Three parameters are equal to or the color less than 10.
4. the reflectance coating according to claim 3 for photovoltaic module, it is characterised in that the micropore is arranged according to rule
Cloth.
5. the reflectance coating according to claim 4 for photovoltaic module, it is characterised in that the micropore is arranged in groups, often
Group micropore includes each outward-dipping micropore of a vertical micropore and left and right.
6. the reflectance coating according to claim 5 for photovoltaic module, it is characterised in that the basic unit is provided with micro- rib
Mirror, and below every group of micropore, the crest line of the microprism are located at the underface of vertical micropore, and two side is respectively with two
The axis of individual outward-dipping micropore is vertical.
7. the reflectance coating according to claim 5 for photovoltaic module, it is characterised in that the every group of length of micropore along reflectance coating
Spend the arrangement of direction rule.
8. a kind of photovoltaic module, it is characterised in that including back board module, framework, glass panel, multiple cell pieces, be connected to electricity
Any described reflectance coating for photovoltaic module of welding and claim 1-7 on pond piece surface, the reflectance coating are covered in weldering
Take and/or photovoltaic module on region between each cell piece.
9. photovoltaic module according to claim 8, it is characterised in that the cell piece and framework are respectively provided with the table of black
Layer.
10. a kind of preparation method of photovoltaic module, it is characterised in that described be used for light including the use of claim 1-7 is any
Behind the reflectance coating covering welding surface for lying prostrate component, then the step of carry out EVA encapsulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323396.3A CN107863406A (en) | 2017-12-11 | 2017-12-11 | A kind of reflectance coating and photovoltaic module and preparation method for photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711323396.3A CN107863406A (en) | 2017-12-11 | 2017-12-11 | A kind of reflectance coating and photovoltaic module and preparation method for photovoltaic module |
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| CN107863406A true CN107863406A (en) | 2018-03-30 |
Family
ID=61706297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711323396.3A Pending CN107863406A (en) | 2017-12-11 | 2017-12-11 | A kind of reflectance coating and photovoltaic module and preparation method for photovoltaic module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384195A (en) * | 2018-12-28 | 2020-07-07 | 苏州高德辰光电科技有限公司 | Reflecting film, photovoltaic module and method for eliminating influence of soldering flux |
| CN114503286A (en) * | 2019-10-11 | 2022-05-13 | 京瓷株式会社 | Solar cell module |
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