CN106449829B - A kind of reflective back plane for photovoltaic module - Google Patents
A kind of reflective back plane for photovoltaic module Download PDFInfo
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- CN106449829B CN106449829B CN201611201907.XA CN201611201907A CN106449829B CN 106449829 B CN106449829 B CN 106449829B CN 201611201907 A CN201611201907 A CN 201611201907A CN 106449829 B CN106449829 B CN 106449829B
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- micro
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- photovoltaic module
- reflecting layer
- reflective back
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- 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
Abstract
The present invention provides a kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, micro-structure reflecting layer, the fluorine layer is arranged on the substrate layer lower surface, the substrate layer upper surface is arranged at intervals with micro-structure reflecting layer, micro-structure reflecting layer position correspondence is arranged on the gap area between cell piece in photovoltaic module, the micro-structure reflecting layer includes concave-convex micro-structure layer, reflecting layer, and the reflecting layer is coated in the surface of the concave-convex micro-structure layer.The present invention is compared to the prior art, gap area in photovoltaic module between cell piece is provided with micro-structure reflecting layer, the area of reflecting surface can be increased, concave-convex micro-structure layer changes angle of incident light, the light for making to reflect reaches cell piece surface and is recycled, the efficiency of light energy utilization is improved, increases the output power of photovoltaic module.
Description
Technical field
The present invention relates to a kind of reflective back plane, particularly a kind of reflective back plane for photovoltaic module.
Background technology
Backboard is located at the outermost layer at the photovoltaic cell back side, is photovoltaic cell component important component, not only acts as encapsulation
Effect, while also act as ensure photovoltaic cell do not acted on be subject to what environment was influenced, it is ensured that the service life of photovoltaic cell.
The through photovoltaic cell surface of light major part for being irradiated to photovoltaic cell component panel is absorbed and used, but also has portion
Light splitter is irradiated to the gap area between photovoltaic cell, is not used effectively.Part photovoltaic component back plate is equipped with one
Layer plane aluminium foil reflective structure, but it is normal reflection, the high light intensity light in direct projection to backboard face is reflected onto photovoltaic group
Outside part.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide it is a kind of it is simple in structure, cost is low, carry
The reflective back plane for photovoltaic module of high-light-energy utilization rate.
To reach above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problems is：
A kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, micro-structure reflecting layer, the fluorine layer are arranged on
The substrate layer lower surface, the substrate layer upper surface are arranged at intervals with micro-structure reflecting layer, micro-structure reflecting layer position
The gap area being correspondingly arranged in photovoltaic module between cell piece, the micro-structure reflecting layer include concave-convex micro-structure layer, reflection
Layer, the reflecting layer are coated in the surface of the concave-convex micro-structure layer.
For the present invention compared to the prior art, the gap area in photovoltaic module between cell piece is provided with micro-structure reflection
Layer, can increase the area of reflecting surface, and concave-convex micro-structure layer changes angle of incident light, and the light for making to reflect reaches cell piece
Surface is recycled, and improves the efficiency of light energy utilization, increases the output power of photovoltaic module.
Further, the concave-convex micro-structure layer is the lateral continuous arrangement of micro- triangular prism, and micro- triangular prism one side is arranged on institute
Substrate layer upper surface is stated, the crest line direction of micro- triangular prism is parallel with cell piece main gate line direction in photovoltaic module.
Using the above preferred scheme, it is simple in structure, it is effectively increased the area of reflecting surface.
Further, micro- triangular prism corner angle is 60 ° -150 °, is preferably 120 °.
Using the above preferred scheme, structural stability is ensured while reflective surface area is improved.
Further, the bottom width of micro- triangular prism is 50 μm.
Using the above preferred scheme, under the guarantee of Mold Making ability, micro-structure is refined, can be preferably by reflected light
Line recycles.
Further, concavo-convex alternate multi-stylus corner structure is cut at the top of micro- triangular prism.
Using the above preferred scheme, microstructure height is reduced, and saves space, vertically to reflecting surface also obtain
Strong increase, the incident ray of small incidence angle are preferably utilized.
Further, micro-structure reflecting layer upper surface is equipped with thick protective layer, and it is anti-that the substrate layer is not provided with micro-structure
The upper surface for penetrating layer is equipped with thin protective layer.
Using the above preferred scheme, effective steady reflection layer shape design, reduces abrasion, ensures reflecting effect；Surface
The shape to match with cell piece group surface is formed, facilitates the encapsulation of further battery piece group.
Further, the concave-convex micro-structure layer cures the ultra-violet curing glue-line formed for UV.
Using the above preferred scheme, first making and the corresponding precision die of concave-convex micro-structure, are then cured using UV
Technology generates concave-convex micro-structure layer, and forming precision is high, and is integrated chemical conversion type, ensures the stability of micro-structure.
Further, the reflecting layer is plating aluminium alloy.
Using the above preferred scheme, the reflecting layer obtained is of low cost, and reflecting effect is good, and corrosion resistance is strong.
Further, the thick protective layer, thin protective layer are EVA hot-melt adhesive.
Using the above preferred scheme, cost is low, while protecting reflection micro-structure, is also convenient for the envelope subsequently with cell piece
Dress.
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 attached drawing needed 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, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the structure diagram of the multi-stylus corner structure of another embodiment of the present invention.
Fig. 3 is the structure diagram of another embodiment of the present invention.
Fig. 4 is a kind of structure diagram of photovoltaic module.
Fig. 5 be corresponding diagram 4 a kind of reflective back plane in micro-structure reflecting layer be distributed structure diagram.
Fig. 6 is a kind of structure diagram of the photovoltaic module containing the present invention.
Numeral and the title of the corresponding component represented by letter in figure：
1- substrate layers；2- micro-structures reflecting layer；3- fluorine layers；4- cell pieces；5- cell piece main gate lines；6- sheet glass；7- is thick
Protective layer；8- thin protective layers；11- incident rays；12- reflection lights；13- is totally reflected light；21- concave-convex micro-structure layers；22- is anti-
Penetrate layer.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution 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, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
In order to reach the purpose of the present invention, as shown in figures 1 to 6, it is in one embodiment of the present invention：One kind is used for light
The reflective back plane of component is lied prostrate, including substrate layer 1, fluorine layer 3, micro-structure reflecting layer 2, fluorine layer 3 are arranged on 1 lower surface of substrate layer, base material
Layer upper surface is arranged at intervals with micro-structure reflecting layer 2, and 2 position correspondence of micro-structure reflecting layer is arranged in photovoltaic module between cell piece
Gap area, micro-structure reflecting layer 2 include concave-convex micro-structure layer 21, reflecting layer 22, reflecting layer 22 is coated in concave-convex micro-structure
The surface of layer 21.
It is using the beneficial effect of above-mentioned technical proposal：Gap area in photovoltaic module between cell piece 4 is provided with
Micro-structure reflecting layer 2, concave-convex micro-structure layer 21 can increase the area of reflecting surface, and reflecting layer 22 changes angle of incident light, makes
The light reflected reaches 4 surface of cell piece and is recycled, and improves the efficiency of light energy utilization, increases the output power of photovoltaic module.
In other embodiments of the present invention, in order to achieve the purpose that to increase reflecting surface, the concave-convex micro-structure layer
21 be the lateral continuous arrangement of micro- triangular prism, and micro- triangular prism one side is arranged on 1 upper surface of substrate layer, the crest line direction of micro- triangular prism with
5 direction of cell piece main gate line is parallel in photovoltaic module.It is using the beneficial effect of above-mentioned technical proposal：It is simple in structure, effectively increase
Add the area of reflecting surface.
In other embodiments of the present invention, in order to achieve the purpose that to improve reflection face stability, micro- trigone
Column corner angle is 60 ° -150 °, is preferably 120 °.It is using the beneficial effect of above-mentioned technical proposal：Improving reflective surface area
Ensure structural stability at the same time.
In other embodiments of the present invention, in order to achieve the purpose that to refine micro-structure, the bottom of micro- triangular prism
Face width is 50 μm.It is with the beneficial effect of above-mentioned technical proposal：Under the guarantee of Mold Making ability, micro-structure, energy are refined
Preferably reflection light is recycled.
As shown in Fig. 2, in other embodiments of the present invention, space is saved in order to reach, increases effective reflecting surface
Long-pending purpose, cuts into concavo-convex alternate multi-stylus corner structure at the top of the micro- triangular prism, vertically to reflecting surface effectively increased
Greatly, reflecting the big small incidence angle light of more intensities of illumination.It is using the beneficial effect of above-mentioned technical proposal：Micro-structure is high
Degree is reduced, and saves space, and the big small incidence angle light of intensity of illumination is preferably utilized, and improves photovoltaic module work(
Rate.
As shown in figure 3, in other embodiments of the present invention, in order to achieve the purpose that to prevent abrasion, micro-structure is anti-
Penetrate 2 upper surface of layer and be equipped with thick protective layer 7, the upper surface that substrate layer 1 is not provided with micro-structure reflecting layer is equipped with thin protective layer 8.Using
The beneficial effect of above-mentioned technical proposal is：Effective steady reflection layer shape design, reduces abrasion, ensures reflecting effect；The reflection back of the body
Plate surface forms the shape to match with cell piece group surface, facilitates the encapsulation of further battery piece group.
As shown in Figure 4,5, Fig. 4 is a kind of structure diagram of photovoltaic module, and Fig. 5 is a kind of reflective back plane of corresponding diagram 4
The structure diagram of middle micro-structure reflecting layer distribution, 4 corresponding region of cell piece is not provided with micro-structure reflecting layer 2.
In other embodiments of the present invention, stablize concave-convex micro-structure layer 21 to achieve the purpose that to make, it is described
Concave-convex micro-structure layer 21 cures the ultra-violet curing glue-line formed for UV.It is using the beneficial effect of above-mentioned technical proposal：First make
With 21 corresponding precision die of concave-convex micro-structure, then concave-convex micro-structure layer, forming precision are generated using UV curing technologies
Height, and chemical conversion type is integrated, ensure the stability of micro-structure.
It is described anti-in order to achieve the purpose that 22 cost of reflecting layer is low, effect is good in other embodiments of the present invention
Layer 22 is penetrated as plating aluminium alloy.It is using the beneficial effect of above-mentioned technical proposal：Obtained reflecting layer is of low cost, reflecting effect
Good, corrosion resistance is strong.
In other embodiments of the present invention, in order to achieve the purpose that convenient encapsulation, the thickness protective layer 7, Bao Bao
Sheath 8 is EVA hot-melt adhesive.It is using the beneficial effect of above-mentioned technical proposal：Cost is low, protects the same of micro-structure reflecting layer
When, it is also convenient for the encapsulation subsequently with cell piece.
The principle of present invention reflection light in photovoltaic module is illustrated with reference to Fig. 6, reflective back plane of the present invention is installed on
4 lower surface of cell piece, gap area of the micro-structure reflecting layer 2 between cell piece, incident ray 11 (sunlight) is through sheet glass 6
2 surface of micro-structure reflecting layer is incided, path is changed into reflection light 12 by reflection, then be totally reflected and change through 6 surface of sheet glass
Reflection light 13 is helped in path, is eventually arrived at cell piece 4, is absorbed and used.
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, it is not intended to limit the scope of the present invention, it is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (7)
1. a kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, the fluorine layer is arranged on the substrate layer following table
Face, it is characterized in that：The substrate upper surface is arranged at intervals with micro-structure reflecting layer, and micro-structure reflecting layer position correspondence is arranged on
Gap area in photovoltaic module between cell piece, the micro-structure reflecting layer includes concave-convex micro-structure layer, reflecting layer, described anti-
Penetrate the surface that layer is coated in the concave-convex micro-structure layer;The concave-convex micro-structure layer is the lateral continuous arrangement of micro- triangular prism, micro- three
Prism one side is arranged on the substrate layer upper surface, crest line direction and the cell piece main gate line direction in photovoltaic module of micro- triangular prism
It is parallel;Micro- triangular prism corner angle is 60 ° -150 °;Concavo-convex alternate multiple point is cut at the top of micro- triangular prism
Structure.
2. a kind of reflective back plane for photovoltaic module according to claim 1, it is characterized in that：Micro- triangular prism apex angle
Angle is 120 °.
3. a kind of reflective back plane for photovoltaic module according to claim 2, it is characterized in that：The bottom of micro- triangular prism
Face width is 50 μm.
4. according to a kind of any reflective back planes for photovoltaic module of claim 1-3, it is characterized in that：The micro-structure
Reflecting layer upper surface is equipped with thick protective layer, and the upper surface that the substrate layer is not provided with micro-structure reflecting layer is equipped with thin protective layer.
5. a kind of reflective back plane for photovoltaic module according to claim 4, it is characterized in that：The concave-convex micro-structure layer
Cure the ultra-violet curing glue-line formed for UV.
6. a kind of reflective back plane for photovoltaic module according to claim 4, it is characterized in that：The reflecting layer is plating
Aluminium alloy.
7. a kind of reflective back plane for photovoltaic module according to claim 4, it is characterized in that：The thickness protective layer, thin
Protective layer is EVA hot-melt adhesive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611201907.XA CN106449829B (en) | 2016-12-22 | 2016-12-22 | A kind of reflective back plane for photovoltaic module |
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| CN201611201907.XA CN106449829B (en) | 2016-12-22 | 2016-12-22 | A kind of reflective back plane for photovoltaic module |
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| Publication Number | Publication Date |
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| CN106449829A CN106449829A (en) | 2017-02-22 |
| CN106449829B true CN106449829B (en) | 2018-04-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666385A (en) * | 2017-03-31 | 2018-10-16 | 阿特斯阳光电力集团有限公司 | Photovoltaic module and its assemble method |
| CN107026210B (en) * | 2017-05-04 | 2019-08-06 | 苏州高德辰光电科技有限公司 | A kind of reflectance coating, its manufacturing method and its application |
| CN108172636A (en) * | 2017-12-28 | 2018-06-15 | 浙江祥邦科技股份有限公司 | A kind of composite material and its application for photovoltaic module synergy |
| CN108550645A (en) * | 2018-06-07 | 2018-09-18 | 苏州高德辰光电科技有限公司 | The manufacturing method of reflectance coating, photovoltaic glass panel, photovoltaic module and photovoltaic module |
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| CN102618042A (en) * | 2012-03-09 | 2012-08-01 | 宁波长阳科技有限公司 | Polyphosphazene composition, solar cell back film with polyphosphazene coatings and preparation method of solar cell back film |
| CN102820359A (en) * | 2011-06-08 | 2012-12-12 | 茂迪股份有限公司 | Solar module with gratings and method for manufacturing solar module |
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| CN105978475A (en) * | 2016-05-31 | 2016-09-28 | 浙江京华激光科技股份有限公司 | Light turning film |
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| CN206301818U (en) * | 2016-12-22 | 2017-07-04 | 苏州高德辰光电科技有限公司 | A kind of reflective back plane for photovoltaic module |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102820359A (en) * | 2011-06-08 | 2012-12-12 | 茂迪股份有限公司 | Solar module with gratings and method for manufacturing solar module |
| CN102618042A (en) * | 2012-03-09 | 2012-08-01 | 宁波长阳科技有限公司 | Polyphosphazene composition, solar cell back film with polyphosphazene coatings and preparation method of solar cell back film |
| CN103000727A (en) * | 2012-11-27 | 2013-03-27 | 宁波长阳科技有限公司 | Flame retardant solar cell rear panel membrane and preparation method thereof and solar cell |
| CN105978475A (en) * | 2016-05-31 | 2016-09-28 | 浙江京华激光科技股份有限公司 | Light turning film |
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Address after: 215000 Room 201, 3 building, 51 Jin Si Gang Road, Guo Lane, Wuzhong District, Suzhou, Jiangsu. Patentee after: SUZHOU GOLDEN STAR ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 215000 Jiangsu Industrial Park, Suzhou, the only Ting Ting new road, No. 9, 3rd floor, room 312B, Patentee before: SUZHOU GOLDEN STAR ELECTRONIC TECHNOLOGY Co.,Ltd. |
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