CN206301818U - 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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- CN206301818U CN206301818U CN201621420338.3U CN201621420338U CN206301818U CN 206301818 U CN206301818 U CN 206301818U CN 201621420338 U CN201621420338 U CN 201621420338U CN 206301818 U CN206301818 U CN 206301818U
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- micro
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- photovoltaic module
- back plane
- 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 utility model provides a kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, micro-structural reflecting layer, the fluorine layer is located at the substrate layer lower surface, the substrate layer upper surface is arranged at intervals with micro-structural reflecting layer, micro-structural reflecting layer position is correspondingly arranged at the gap area between cell piece in photovoltaic module, the micro-structural 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 utility model is compared to prior art, gap area between cell piece in photovoltaic module is provided with micro-structural reflecting layer, the area of reflecting surface can be increased, concave-convex micro-structure layer changes angle of incident light, make the light for reflecting reach cell piece surface to be recycled, the efficiency of light energy utilization is improved, increases the power output of photovoltaic module.
Description
Technical field
The utility model is related 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 guarantee photovoltaic cell do not acted on by ambient influnence, it is ensured that the service life of photovoltaic cell.
The most of through photovoltaic cell surface of light 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 provided with one
Layer plane aluminium foil reflective structure, but it is normal reflection, and the bloom high light line in direct projection to backboard face is reflected onto photovoltaic group
Outside part.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model there is provided a kind of simple structure, cost
It is low, improve the reflective back plane for photovoltaic module of the efficiency of light energy utilization.
To reach above-mentioned purpose, the utility model solves the technical scheme that its technical problem used is：
A kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, micro-structural reflecting layer, the fluorine layer are located at
The substrate layer lower surface, the substrate layer upper surface is arranged at intervals with micro-structural reflecting layer, micro-structural reflecting layer position
The gap area between cell piece in photovoltaic module is correspondingly arranged at, the micro-structural reflecting layer includes concave-convex micro-structure layer, reflection
Layer, the reflecting layer is coated in the surface of the concave-convex micro-structure layer.
The utility model is provided with micro-structural compared to prior art, the gap area between cell piece in photovoltaic module
Reflecting layer, can increase the area of reflecting surface, and concave-convex micro-structure layer changes angle of incident light, the light for reflecting is reached electricity
Pond piece surface is recycled, and improves the efficiency of light energy utilization, increases the power output 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 located at 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 above-mentioned preferred scheme, simple structure is effectively increased the area of reflecting surface.
Further, micro- triangular prism corner angle is 60 ° -150 °, preferably 120 °.
Using above-mentioned preferred scheme, structural stability is ensured while reflective surface area is improved.
Further, the bottom width of micro- triangular prism is 50 μm.
Using above-mentioned preferred scheme, under the guarantee of Mold Making ability, micro-structural is refined, can preferably by reflected light
Line is recycled.
Further, micro- triangular prism top cuts into concavo-convex alternate multi-stylus corner structure.
Using above-mentioned preferred scheme, microstructure height is reduced, and saves space, vertically to reflecting surface also obtain
Strong increase, the incident ray of small incidence angle is preferably utilized.
Further, micro-structural reflecting layer upper surface is provided with thick protective layer, and it is anti-that the substrate layer is not provided with micro-structural
The upper surface for penetrating layer is provided with thin protective layer.
Using above-mentioned preferred scheme, effective steady reflection layer shape design reduces abrasion, it is ensured that reflecting effect；Surface
The shape matched with cell piece group surface is formed, facilitates the encapsulation of further battery piece group.
Further, the concave-convex micro-structure layer is the ultra-violet curing glue-line of UV solidifications.
Using above-mentioned preferred scheme, the precision die corresponding with concave-convex micro-structure is first made, then solidified using UV
Technology generation concave-convex micro-structure layer, forming precision is high, and integrated shaping, it is ensured that the stability of micro-structural.
Further, the reflecting layer is plating aluminium alloy.
Using above-mentioned preferred scheme, the reflecting layer for obtaining is with 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 above-mentioned preferred scheme, low cost while protection 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 of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the multi-stylus corner structure of the utility model another embodiment.
Fig. 3 is the structural representation of the utility model another embodiment.
Fig. 4 is a kind of structural representation of photovoltaic module.
Fig. 5 be corresponding diagram 4 a kind of reflective back plane in micro-structural reflecting layer distribution structural representation.
Fig. 6 is a kind of structural representation containing photovoltaic module of the present utility model.
The title of the corresponding component in figure represented by digital and letter：
1- substrate layers；2- micro-structurals reflecting layer；3- fluorine layer；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-structures layer；22- is anti-
Penetrate layer.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
In order to reach the purpose of this utility model, as shown in figures 1 to 6, it is in a kind of implementation method of the present utility model：One
The reflective back plane for photovoltaic module, including substrate layer 1, fluorine layer 3, micro-structural reflecting layer 2 are planted, fluorine layer 3 is located at the following table of substrate layer 1
Face, substrate layer upper surface is arranged at intervals with micro-structural reflecting layer 2, and the position of micro-structural reflecting layer 2 is correspondingly arranged at electricity in photovoltaic module
Gap area between the piece of pond, micro-structural reflecting layer 2 includes concave-convex micro-structure layer 21, reflecting layer 22, and reflecting layer 22 is coated in recessed
The surface of convex microstructured layers 21.
Beneficial effect using above-mentioned technical proposal is：Gap area between cell piece 4 in photovoltaic module is provided with
Micro-structural 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 for reflecting reaches the surface of cell piece 4 and is recycled, and improves the efficiency of light energy utilization, increases the power output of photovoltaic module.
In other implementation methods of the present utility model, in order to reach the purpose of increase reflecting surface, concavo-convex micro- knot
Structure layer 21 is the lateral continuous arrangement of micro- triangular prism, and micro- triangular prism one side is located at the upper surface of substrate layer 1, the crest line side of micro- triangular prism
To parallel with the direction of cell piece main gate line 5 in photovoltaic module.Beneficial effect using above-mentioned technical proposal is：Simple structure, has
Effect increases the area of reflecting surface.
In other implementation methods of the present utility model, the purpose of reflection face stability is improved to reach, it is described micro-
Triangular prism corner angle is 60 ° -150 °, preferably 120 °.Beneficial effect using above-mentioned technical proposal is：Improving reflecting surface
Ensure structural stability while product.
In other implementation methods of the present utility model, in order to reach the purpose of refinement micro-structural, micro- triangular prism
Bottom width be 50 μm.It is with the beneficial effect of above-mentioned technical proposal：Under the guarantee of Mold Making ability, micro- knot is refined
Structure, preferably can recycle reflection light.
As shown in Fig. 2 in other implementation methods of the present utility model, in order to reach save space, increase is effectively anti-
Penetrate the purpose of area, micro- triangular prism top cuts into concavo-convex alternate multi-stylus corner structure, vertically to reflecting surface had
Power increases, and is used to reflect the big small incidence angle light of more intensities of illumination.Beneficial effect using above-mentioned technical proposal is：Micro- knot
Structure is highly reduced, and saves space, and the big small incidence angle light of intensity of illumination is preferably utilized, and improves photovoltaic group
Part power.
As shown in figure 3, in other implementation methods of the present utility model, the purpose of abrasion, micro- knot are prevented to reach
The upper surface of structure reflecting layer 2 is provided with thick protective layer 7, and the upper surface that substrate layer 1 is not provided with micro-structural reflecting layer is provided with thin protective layer 8.
Beneficial effect using above-mentioned technical proposal is：Effective steady reflection layer shape design, reduces abrasion, it is ensured that reflecting effect；Instead
Penetrate back plate surface and form the shape matched with cell piece group surface, facilitate the encapsulation of further battery piece group.
As shown in Figure 4,5, Fig. 4 is a kind of structural representation of photovoltaic module, and Fig. 5 is a kind of reflective back plane of corresponding diagram 4
The structural representation of middle micro-structural reflecting layer distribution, the corresponding region of cell piece 4 is not provided with micro-structural reflecting layer 2.
In other implementation methods of the present utility model, the purpose of stabilization concave-convex micro-structure layer 21 is made to reach,
The concave-convex micro-structure layer 21 is the ultra-violet curing glue-line of UV solidifications.Beneficial effect using above-mentioned technical proposal is：First
The precision die corresponding with concave-convex micro-structure 21 is made, then concave-convex micro-structure layer, shaping essence is generated using UV curing technologies
Density is high, and integrated shaping, it is ensured that the stability of micro-structural.
In other implementation methods of the present utility model, the purpose good in order to reach the low cost of reflecting layer 22, effect, institute
It is plating aluminium alloy to state reflecting layer 22.Beneficial effect using above-mentioned technical proposal is：The reflecting layer for obtaining is with low cost, reflection
Effect is good, and corrosion resistance is strong.
In other implementation methods of the present utility model, the purpose for encapsulating is facilitated in order to reach, the thick protective layer 7,
Thin protective layer 8 is EVA hot-melt adhesive.Beneficial effect using above-mentioned technical proposal is：Low cost, protection micro-structural reflecting layer
Meanwhile, it is also convenient for the encapsulation subsequently with cell piece.
The principle of the utility model reflection light in photovoltaic module, the utility model reflection back of the body are illustrated with reference to Fig. 6
Plate is arranged on the lower surface of cell piece 4, and micro-structural reflecting layer 2 is located at the gap area between cell piece, incident ray 11 (sunlight)
The surface of micro-structural reflecting layer 2 is incided through sheet glass 6, it is into reflection light 12 then complete through the surface of sheet glass 6 to change path by reflection
Reflection changes path and helps reflection light 13, eventually arrives at cell piece 4, is absorbed and used.
Above-described embodiment only to illustrate technology design of the present utility model and feature, its object is to allow the common skill in this area
Art personnel will appreciate that content of the present utility model and are carried out, and can not limit protection domain of the present utility model with this,
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover in protection domain of the present utility model
It is interior.
Claims (10)
1. a kind of reflective back plane for photovoltaic module, including substrate layer, fluorine layer, the fluorine layer is located at the substrate layer following table
Face, it is characterized in that：The substrate upper surface is arranged at intervals with micro-structural reflecting layer, and micro-structural reflecting layer position is correspondingly arranged at
Gap area in photovoltaic module between cell piece, the micro-structural 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.
2. a kind of reflective back plane for photovoltaic module according to claim 1, it is characterized in that：The concave-convex micro-structure layer
It is the lateral continuous arrangement of micro- triangular prism, micro- triangular prism one side is located at the substrate layer upper surface, the crest line direction of micro- triangular prism
It is parallel with cell piece main gate line direction in photovoltaic module.
3. a kind of reflective back plane for photovoltaic module according to claim 2, it is characterized in that：Micro- triangular prism drift angle
Angle is 60 ° -150 °.
4. a kind of reflective back plane for photovoltaic module according to claim 3, it is characterized in that：Micro- triangular prism drift angle
Angle is preferably 120 °.
5. a kind of reflective back plane for photovoltaic module according to claim 4, it is characterized in that：The bottom of micro- triangular prism
Face width is 50 μm.
6. a kind of reflective back plane for photovoltaic module according to claim 2, it is characterized in that：Micro- triangular prism top
Cut into concavo-convex alternate multi-stylus corner structure.
7. according to a kind of any described reflective back planes for photovoltaic module of claim 1-6, it is characterized in that：The micro-structural
Reflecting layer upper surface is provided with thick protective layer, and the upper surface that the substrate layer is not provided with micro-structural reflecting layer is provided with thin protective layer.
8. a kind of reflective back plane for photovoltaic module according to claim 7, it is characterized in that：The concave-convex micro-structure layer
It is the ultra-violet curing glue-line of UV solidifications.
9. a kind of reflective back plane for photovoltaic module according to claim 7, it is characterized in that：The reflecting layer is plating
Aluminium alloy.
10. a kind of reflective back plane for photovoltaic module according to claim 7, it is characterized in that：It is the thick protective layer, thin
Protective layer is EVA hot-melt adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621420338.3U CN206301818U (en) | 2016-12-22 | 2016-12-22 | A kind of reflective back plane for photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621420338.3U CN206301818U (en) | 2016-12-22 | 2016-12-22 | A kind of reflective back plane for photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN206301818U true CN206301818U (en) | 2017-07-04 |
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ID=59204531
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621420338.3U Active CN206301818U (en) | 2016-12-22 | 2016-12-22 | A kind of reflective back plane for photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449829A (en) * | 2016-12-22 | 2017-02-22 | 苏州高德辰光电科技有限公司 | Reflection back plate for photovoltaic module |
-
2016
- 2016-12-22 CN CN201621420338.3U patent/CN206301818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449829A (en) * | 2016-12-22 | 2017-02-22 | 苏州高德辰光电科技有限公司 | Reflection back plate for photovoltaic module |
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