CN207691750U - A kind of light total reflection film of corrosion resistant photovoltaic module - Google Patents
A kind of light total reflection film of corrosion resistant photovoltaic module Download PDFInfo
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- CN207691750U CN207691750U CN201721698938.0U CN201721698938U CN207691750U CN 207691750 U CN207691750 U CN 207691750U CN 201721698938 U CN201721698938 U CN 201721698938U CN 207691750 U CN207691750 U CN 207691750U
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- total reflection
- photovoltaic module
- light total
- corrosion resistant
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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 relates to a kind of light total reflection films of corrosion resistant photovoltaic module, are applied to photovoltaic art.A kind of light total reflection film of corrosion resistant photovoltaic module includes adhesive layer, basal layer, structure sheaf, reflective layer and protective layer.Adhesive layer is the bottom, and adhesive layer is used to the light total reflection film be fixed to photovoltaic module welding strip region.Basal layer is arranged above adhesive layer, is used to support structure sheaf.Portion, structure sheaf include pedestal and multiple micro-structures arranged in parallel above pedestal on the base layer for structure sheaf setting, and microstructured ar-rangement direction and light total reflection membrane product length direction are non-perpendicular.The micro-structure is horizontal triangular prism, and triangular prism cross section is isosceles triangle, and adjacent triangular prism cross-sectional triangle bottom edge hand tail is connected, and preferably base angle is 20 ° ~ 30 °.
Description
Technical field
The utility model relates to a kind of light total reflection films of corrosion resistant photovoltaic module, are applied to photovoltaic art.
Background technology
With the development of economy, demand of the people to the energy rapidly increases, and the increasingly depleted of traditional fossil energy and
A series of environmental pollutions caused by it drive people and look for the more sustainable and more clean energy, and solar energy is just
It is a kind of extraordinary selection.People are exactly photovoltaic generation to the main Land use systems of solar energy at present, and improve photovoltaic module
Generating efficiency and ensure that its long-time effective use is the most important thing of current photovoltaic art.
The composition of conventional photovoltaic assemblies is followed successively by preceding glass sheet from top to bottom, encapsulates glue-line, and cell piece encapsulates glue-line and the back of the body
Plate（Or glass）.The welding that 2 ~ 3 width are 2 ~ 3mm can be covered on wherein every cell piece, it can be cell piece by welding
It is together in series, welding accounts for about the surface area of entire component 2 ~ 3%, and the sunlight for being incident on welding region can not be by cell piece
It directly absorbs, by the diffusing reflection on welding surface, reflected light is reflected into glass and Air Interface on cell piece again could quilt
It is absorbed and utilized, and this utilize is very inefficient.
Patent（Publication number：CN206349378U）A kind of photovoltaic module light redirecting films are proposed, it can be with high-efficiency reflective
The sunlight for irradiating welding region can travel to battery panel region after the total reflection of preceding glass sheet and Air Interface,
To improve the power of photovoltaic module 1 ~ 2%.But during component is used for a long time, encapsulation glue-line such as EVA agings can decompose production
Raw acetic acid, while steam and oxygen are inevitably penetrated into component, and light redirecting films reflective layer be mostly metal material such as
Aluminium etc. is highly prone to corrosiveness caused by acid corrosion or water and oxygen collective effect, to destroy reflective layer, reduces anti-
Light efficiency reduces component power.
Invention content
The utility model aim is that place provides a kind of light total reflection of corrosion resistant photovoltaic module against the above deficiency
Film, it passes through physics in reflective layer surface（PVD）Or chemical vapor deposition（CVD）Make layer protective layer such as Si oxide SiOx
（1≤x≤2）, in the case where not reducing light transmittance, can effective blocking oxygen, steam and acetic acid etc., rejection rate is expected to reach
0.0001g/（m2·24h）, to improve light total reflection film acidproof, resistance to steam and oxygen corrosive nature, ensure that light is all-trans
Penetrate the long-term effective use of film in assembly.
A kind of light total reflection film of corrosion resistant photovoltaic module is that following technical scheme is taken to realize：
A kind of light total reflection film of corrosion resistant photovoltaic module includes adhesive layer, basal layer, structure sheaf, reflective layer and guarantor
Sheath.Adhesive layer is the bottom, and adhesive layer is used to the light total reflection film be fixed to photovoltaic module welding strip region.Basal layer is arranged
Above adhesive layer, it is used to support structure sheaf.Portion, structure sheaf include pedestal and are located on pedestal on the base layer for structure sheaf setting
Multiple micro-structures arranged in parallel of side, microstructured ar-rangement direction and light total reflection membrane product length direction are non-perpendicular.Described
Micro-structure is horizontal triangular prism, and triangular prism cross section is isosceles triangle, adjacent triangular prism cross-sectional triangle bottom edge hand tail phase
Even, preferably base angle is 20 ° ~ 30 °.
Reflective layer is arranged above structure sheaf, high-efficiency reflective sunlight.Protective layer is arranged in reflective layer surface, can be effective
Barrier acid, steam and oxygen etc. avoid reflective layer from being corroded, to ensure that reflective layer being capable of the long-time high-efficiency reflective sun
Light improves the service life of light total reflection film, improves the gain of photovoltaic module.
The reflective layer is coated uniformly on structure layer surface, high-efficiency reflective sunlight.
The micro-structure is multiple horizontal triangular prisms arranged in parallel, triangular prism arrangement direction and light total reflection membrane product
Length direction（MD）It is non-perpendicular.
The micro-structure cross section is isosceles triangle, continuous arrangement and bottom edge is located at same straight line.
The micro-structure cross section isosceles triangle base angle value range is 20 ° ~ 30 °.
The adhesive layer thickness is 10-30 μm；Base layer thickness is 50-150 μm；5-10 μm of structure sheaf base thickness, it is micro-
Structure height is 10-30 μm；Reflective layer thickness is 30-200nm；Protective layer thickness is 10-500nm.
The adhesive layer contains polymer material；Basal layer contains polymer material；Structure sheaf contains polymer material；
Reflective layer contains metal material；Protective layer is inorganic or organic material.
The light total reflection membrane product of a kind of corrosion resistant photovoltaic module, by accurate coating process in basal layer
Upper making structure sheaf, is then deposited reflective layer on structure sheaf, after protective layer is deposited on reflective layer, it is then another in basal layer
Side squeezes out composite tie layer, and finally cutting obtains finished product.
A kind of light total reflection film of corrosion resistant photovoltaic module, it passes through physics in reflective layer surface（PVD）Or chemistry
Vapor deposition（CVD）Make layer protective layer such as Si oxide SiOx（1≤x≤2）, can in the case where not reducing light transmittance
With effective blocking oxygen, steam and acetic acid etc., rejection rate are expected to reach 0.0001g/（m2·24h）, to improve light total reflection
The corrosive nature of acidproof, the resistance to steam and oxygen of film ensures the long-term effective use of light total reflection film in assembly.
A kind of light total reflection film reasonable design of corrosion resistant photovoltaic module, compact-sized, being one kind can be bonded to
It is used for the corrosion resistant light total reflection film of photovoltaic module on welding, is by preferred horizontal triangular prism micro-structure and cross section
The base angle of isosceles triangle optimizes, and can reduce metallic reflective layer deposition difficulty and maximally utilize and be incident on welding region
Sunlight improves component and arrives welding region sun light utilization ratio to irradiation, and then improves 1% ~ 2% power of component, to improve
One class of component.
Description of the drawings
Below with reference to attached drawing, the utility model is described in further detail：
Fig. 1 is a kind of light total reflection membrane structure diagram of corrosion resistant photovoltaic module.
The title of number and the corresponding component represented by letter in figure：
1, adhesive layer；2, basal layer；3, structure sheaf；31, pedestal；32, micro-structure；4, reflective layer；5, protective layer.
Specific implementation mode
With reference to attached drawing 1, a kind of light total reflection film of corrosion resistant photovoltaic module includes adhesive layer 1, basal layer 2, structure
Layer 3, reflective layer 4 and protective layer 5.Adhesive layer 1 is the bottom, and adhesive layer 1 is used to the light total reflection film be fixed to photovoltaic module
Welding region.Basal layer 2 is arranged above adhesive layer 1, is used to support structure sheaf 3.The setting of structure sheaf 3 is in 2 top of basal layer, knot
Structure layer 3 includes pedestal 31 and multiple micro-structures 32 arranged in parallel above pedestal 31,32 orientation of micro-structure and light
Total reflection film article length direction is non-perpendicular.
The micro-structure 32 is horizontal triangular prism, and triangular prism cross section is isosceles triangle, adjacent triangular prism cross section
Triangle base hand tail is connected, and preferably base angle is 20 ° ~ 30 °.
Reflective layer 4 is arranged above structure sheaf 3, high-efficiency reflective sunlight.The setting of protective layer 5, can be on 4 surface of reflective layer
Effectively barrier acid, steam and oxygen etc. avoid reflective layer 4 from being corroded, to ensure that reflective layer 4 being capable of long-time high-efficiency reflective
Sunlight improves the service life of light total reflection film, improves the gain of photovoltaic module.
The reflective layer 4 is coated uniformly on structure layer surface, high-efficiency reflective sunlight.
The micro-structure 32 is multiple horizontal triangular prisms arranged in parallel, triangular prism arrangement direction and light total reflection film system
Product length direction（MD）It is non-perpendicular.
32 cross section of micro-structure is isosceles triangle, continuous arrangement and bottom edge is located at same straight line.
The 32 cross section isosceles triangle base angle value range of micro-structure is 20 ° ~ 30 °.
1 thickness of the adhesive layer is 10-30 μm；2 thickness of basal layer is 50-150 μm；5-10 μm of structure sheaf base thickness,
32 height of micro-structure is 10-30 μm；4 thickness of reflective layer is 30-200nm；5 thickness of protective layer is 10-500nm.
The adhesive layer 1 contains polymer material；The adhesive layer（1）To heat EVA.
The basal layer 2 contains polymer material；The basal layer 2 be epoxy acrylate, polyester acrylate,
Urethane acrylate, polyethylene terephthalate（PET）Or polyvinyl chloride（PVC）Material.
The structure sheaf 3 contains polymer material；The structure sheaf 3 be epoxy acrylate, polyester acrylate,
It is one or more in urethane acrylate.
The reflective layer 4 contains metal material；The reflective layer（4）It aluminizes to be evaporated in vacuo.
The protective layer 5 is inorganic or organic material.The protective layer is Si oxide SiOx（1≤x≤2）.
The light total reflection membrane product of a kind of corrosion resistant photovoltaic module, by accurate coating process in basal layer
On 2 make structure sheaf 3, then on structure sheaf 3 be deposited reflective layer 4, after on reflective layer 4 deposit protective layer 5, then in substrate
2 another side of layer squeeze out composite tie layer 1, and finally cutting obtains finished product.
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out specific in detail
Description.Obviously, embodiment described in the disclosure is only a part of the embodiment, and not all embodiments.Implementation based on the disclosure
Example, others skilled in the art's used embodiment under the premise of no creative work all belong to the protection domain of the disclosure.
Embodiment 1：
A kind of light total reflection film of corrosion resistant photovoltaic module, structure as shown in Figure 1, including adhesive layer 1, basal layer 2,
Structure sheaf 3（Including pedestal 31, micro-structure 32）, reflective layer 4 and protective layer 5.Adhesive layer 1 is located at bottom, and basal layer 2, which is located at, to be bonded
1 top of layer, structure sheaf 3 are located above basal layer, and 4 uniform fold of reflective layer is located at reflective layer 4 in 3 surface of structure sheaf, protective layer 5
Surface.Structure sheaf 3 includes pedestal 31, micro-structure 32.Micro-structure 32 is made of multiple parallel horizontal triangular prisms, the row of micro-structure
Column direction and light total reflection membrane product length direction（MD）It is non-perpendicular.Triangular prism cross section is isosceles triangle, adjacent triangular prism
Cross-sectional triangle bottom edge hand tail is connected and is located on the same line.
Embodiment 2：
A kind of light total reflection film of corrosion resistant photovoltaic module, the base layer material are high-melting-point transparent PET material,
PET needs two-sided corona to improve adhesion strength.
Embodiment 3：
A kind of light total reflection film of corrosion resistant photovoltaic module, the structural material is uv-curable glue, first in PET
Upper uniformly one layer of glue of coating leads to simultaneously then by there is the mold of micro-structure such as roller to suppress micro-structure in glue
Uv radiation curing molding is crossed, structure sheaf can be made after being removed with mold.
Embodiment 4：
A kind of light total reflection film of corrosion resistant photovoltaic module, the cross-sectional triangle bottom edge of the micro-structure is 40 ~
80μm。
Embodiment 5：
A kind of light total reflection film of corrosion resistant photovoltaic module, the adhesive layer is EVA hot-melt adhesive, compound by squeezing out
Mode is bonded on PET.
Embodiment 6：
A kind of light total reflection film of corrosion resistant photovoltaic module, the reflective layer are aluminium layer, and thickness is 40 ~ 100nm, is led to
It is high-purity to cross vacuum evaporation（＞ 99.9%）Aluminium is made.
Embodiment 7：
A kind of light total reflection film of corrosion resistant photovoltaic module, the protective layer are Si oxide SiOx（1≤x≤2）,
Thickness is 10 ~ 100nm, is made by PVD or CVD.
Embodiment 8：
A kind of light total reflection film of corrosion resistant photovoltaic module, the protective layer are Si oxide SiOx（1≤x≤2）,
SiOx high transparencies, ranges of indices of refraction is between 1.44 ~ 1.55, with EVA refractive index（1.48）Matching, so light is in transmission process
In loss it is smaller.
Embodiment 9：
A kind of light total reflection film of corrosion resistant photovoltaic module, the protective layer are Si oxide SiOx（1≤x≤2）,
Si oxide has high barrier property, has good anti-permeability to oxygen and steam, is widely used to food packaging
Industry, it is possible to avoid the corrosiveness of steam and oxygen to reflective layer of aluminizing, ensure reflector efficiency.
Embodiment 10：
A kind of light total reflection film of corrosion resistant photovoltaic module, the protective layer are Si oxide SiOx（1≤x≤2）,
Reflective layer can be avoided by such as EVA of the encapsulating material in component in the acetic acid for decomposing generation when used for a long time with acid-alkali-corrosive-resisting
Corrosiveness, to ensure reflector efficiency.
The utility model discloses a kind of light total reflection films of corrosion resistant photovoltaic module, include viscous successively from top to bottom
Tie layer, basal layer, structure sheaf, reflective layer and protective layer.Adhesive layer is used to light total reflection film be fixed on photovoltaic module welding strip area
Domain；Basal layer is located on adhesive layer；Structure sheaf contains pedestal and multiple parallel horizontal triangular prism structures above pedestal,
Triangular prism arrangement direction and machine direction are non-perpendicular, and cross section is isosceles triangle；Reflective layer is located at structure layer surface；Protection
Layer is located at reflective layer surface.The utility model is acted on by the high-barrier of protective layer, is avoided EVA in component and is decomposed the vinegar generated
Acid permeates the corrosion to reflective layer to steam, oxygen in the corrosion of reflective layer and air, ensure that the longevity of light total reflection film
Effec-tive Function is ordered, the overall gain of component is improved.
Claims (10)
1. a kind of light total reflection film of corrosion resistant photovoltaic module, it is characterised in that：
Including adhesive layer, basal layer, structure sheaf, reflective layer and protective layer；Adhesive layer is the bottom, and adhesive layer is used for the light is complete
Reflectance coating is fixed to photovoltaic module welding strip region, and basal layer is arranged above adhesive layer, is used to support structure sheaf, structure sheaf setting
Portion on the base layer；
Structure sheaf includes pedestal and multiple micro-structures arranged in parallel above pedestal, and microstructured ar-rangement direction is all-trans with light
It is non-perpendicular to penetrate membrane product length direction；
Reflective layer is arranged above structure sheaf, high-efficiency reflective sunlight, and protective layer is arranged in reflective layer surface, can effectively obstruct
Acid, steam and oxygen, avoid reflective layer from being corroded.
2. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：Described
Reflective layer is coated uniformly on structure layer surface, high-efficiency reflective sunlight.
3. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：Described
Micro-structure is horizontal triangular prism, and triangular prism cross section is isosceles triangle, adjacent triangular prism cross-sectional triangle bottom edge hand tail phase
Even.
4. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：Described
Micro-structure is multiple horizontal triangular prisms arranged in parallel, and triangular prism arrangement direction is non-vertical with light total reflection membrane product length direction
Directly.
5. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1 or 2, it is characterised in that：Institute
The micro-structure cross section stated is isosceles triangle, continuous arrangement and bottom edge is located at same straight line.
6. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1 or 2, it is characterised in that：Institute
The micro-structure cross section isosceles triangle base angle value range stated is 20 ° ~ 30 °.
7. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：It is described viscous
It is 10-30 μm to tie layer thickness；Base layer thickness is 50-150 μm；5-10 μm of structure sheaf base thickness, microstructure height 10-30
μm；Reflective layer thickness is 30-200nm；Protective layer thickness is 10-500nm.
8. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：Described
Adhesive layer contains polymer material；Basal layer contains polymer material；Structure sheaf contains polymer material.
9. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：Described
Reflective layer contains metal material；The protective layer is inorganic or organic material.
10. a kind of light total reflection film of corrosion resistant photovoltaic module according to claim 1, it is characterised in that：It is described
A kind of corrosion resistant photovoltaic module light total reflection membrane product, structure is made by accurate coating process on the base layer
Layer, reflective layer is then deposited on structure sheaf, after protective layer is deposited on reflective layer, then basal layer another side squeeze out it is compound
Adhesive layer, finally cutting obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698938.0U CN207691750U (en) | 2017-12-08 | 2017-12-08 | A kind of light total reflection film of corrosion resistant photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721698938.0U CN207691750U (en) | 2017-12-08 | 2017-12-08 | A kind of light total reflection film of corrosion resistant photovoltaic module |
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| CN207691750U true CN207691750U (en) | 2018-08-03 |
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| CN201721698938.0U Active CN207691750U (en) | 2017-12-08 | 2017-12-08 | A kind of light total reflection film of corrosion resistant photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994860A (en) * | 2017-12-08 | 2018-05-04 | 中天科技精密材料有限公司 | A kind of light total reflection film of corrosion resistant photovoltaic module |
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2017
- 2017-12-08 CN CN201721698938.0U patent/CN207691750U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994860A (en) * | 2017-12-08 | 2018-05-04 | 中天科技精密材料有限公司 | A kind of light total reflection film of corrosion resistant photovoltaic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230706 Address after: No.99 Tongren Road, Nantong Development Zone, Jiangsu Province, 226015 Patentee after: ZHONGTIAN PHOTOVOLTAIC MATERIALS Co.,Ltd. Address before: 226009 No. 3 Zhongtian Road, Nantong economic and Technological Development Zone, Jiangsu Patentee before: ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS Co.,Ltd. Patentee before: JIANGSU ZHONGTIAN TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |