CN110350049B - Anti-dazzle solar module cover plate glass - Google Patents

Anti-dazzle solar module cover plate glass Download PDF

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Publication number
CN110350049B
CN110350049B CN201910673860.4A CN201910673860A CN110350049B CN 110350049 B CN110350049 B CN 110350049B CN 201910673860 A CN201910673860 A CN 201910673860A CN 110350049 B CN110350049 B CN 110350049B
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China
Prior art keywords
mountain
pattern structure
module cover
glass
dazzle
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Application number
CN201910673860.4A
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Chinese (zh)
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CN110350049A (en
Inventor
陈刚
王科
朱明达
刘明刚
陈海峰
周志文
唐高山
纪朋远
贺志奇
胡小娅
陈诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CSG Holding Co Ltd
Dongguan CSG Solar Glass Co Ltd
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CSG Holding Co Ltd
Dongguan CSG Solar Glass Co Ltd
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Priority to CN201910673860.4A priority Critical patent/CN110350049B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547Optical 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

Abstract

The utility model relates to the technical field of solar cell module cover plate glass, in particular to anti-dazzle solar cell module cover plate glass, which structurally comprises a glass substrate, wherein an anti-dazzle pattern structure is arranged on the upper surface of the glass substrate, the anti-dazzle pattern structure is formed by a plurality of mountain-shaped curved surface units which are respectively continuous along the transverse direction and the longitudinal direction and are connected in a transverse-longitudinal intersecting manner, each mountain-shaped curved surface unit comprises a mountain top which is arranged at the middle part and two side surfaces which are recessed from the mountain top to two sides, the connecting positions of the adjacent mountain-shaped curved surface units form ridges, the ridges are of structures with two sides protruding and the middle recessed, and the adjacent four mountain tops jointly surround a valley which forms a middle recessed. The arc surface radian formed by the anti-dazzle pattern structure is large, and the anti-dazzle pattern structure has a plurality of different reflecting directions, so that the diffuse reflection effect is greatly improved, and the brightness of reflected light observed by eyes is reduced by more than 50%.

Description

Anti-dazzle solar module cover plate glass
Technical Field
The utility model relates to the technical field of solar cell module cover plate glass, in particular to anti-dazzle solar cell module cover plate glass.
Background
Solar photovoltaic power generation is an important renewable energy source, and is slowly penetrated into various living scenes, and a large number of airports, stadiums, office buildings and the like are provided with solar photovoltaic modules at present. In some special installation sites, such as airports and large urban building sites, the control of the surface reflection brightness of the photovoltaic modules is very strict, and the solar modules adopted are required to achieve enough anti-dazzling effect. For example, some European customers currently require that under 100000lux of outdoor sunlight, the measured maximum reflective brightness value must be less than or equal to 30000cd/m within the observation range of 0-60 degrees of observation angle 2
Solar module cover glass, also known as solar cover glass, has a structure comprising a surface with smooth planar surfaces and a surface with embossed layers. When the solar cell module is packaged, the surface with the smooth plane faces the incident side of sunlight, the surface with the embossing layer faces one side of the solar cell, and the solar cell is sealed and bonded through the EVA layer. In the past, researchers have mostly studied in a direction of reducing reflected light incident on a cover glass of a solar cell module more effectively to improve light transmittance of a solar glass cover. For example, chinese patent publication No. CN201868438U discloses a solar cell module cover glass, in which the glass substrate has a first surface and a second surface, the first surface is provided with a pattern structure having a hemispherical unit protrusion and a hemispherical unit recess, and the second surface is a textured structure; the pattern structure is formed by arranging hemispherical unit bulges and hemispherical unit depressions in a transverse and longitudinal continuous mode or at intervals, so that reflection loss during sunlight incidence can be reduced, effective convergence during sunlight transmission is ensured, dust is not easy to accumulate, and cleaning is easy.
Therefore, the design of the pattern structure on the upper surface of the solar glass in the prior art still has a great number of purposes for improving the transmittance so as to increase the power generation efficiency of the solar cell module, but does not consider the high requirement on the anti-dazzle effect in specific application occasions; on the other hand, the solar energy cover plate glass is used as embossing ultrawhite glass with irregular suede on the surface, the suede structure has small concave-convex size (roughness Ra < 2um, rz < 25 um) and small reflective cambered surface, the cambered surface degree is close to a plane (the horizontal included angle between the highest point and the lowest point is 178 DEG), although the overall reflectivity is about 6% after the anti-reflection coating is added, the maximum reflective brightness value of the solar energy cover plate glass in the observation angle range of 0 DEG-60 DEG is as high as 80000cd/m under the outdoor sunlight 1000000lux irradiation condition 2 ~110000cd/m 2 The anti-dazzle requirements of the surface reflection brightness of the photovoltaic module in some building places such as airports, large urban areas and the like cannot be met.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide anti-dazzle solar cell module cover plate glass, wherein the upper surface (sunward surface) of the cover plate glass is provided with a mountain-like concave-convex pattern structure, the radian of the pattern structure is large, the cover plate glass is provided with a plurality of different reflection directions, the diffuse reflection effect is improved, and the brightness of reflection light observed by eyes is reduced by more than 50%.
The utility model provides an anti-dazzle solar module apron glass, includes the glass base member, the upper surface of glass base member is towards the incident side of sunlight, the lower surface of glass base member is towards one side of solar wafer, the upper surface is provided with anti-dazzle decorative pattern structure, anti-dazzle decorative pattern structure is by a plurality of respectively along horizontal and vertical continuous mountain form curved surface unit and be the intersecting connection that is the horizontal and vertical, every mountain form curved surface unit is including being located the bellied mountain top in middle part and by mountain top to both sides sunken two sides, and the junction of adjacent mountain form the mountain ridge, the mountain ridge is both sides arch, the sunken structure in middle part to four adjacent mountain tops surround the valley that forms a middle sunken jointly, all mountain valleys in the anti-dazzle decorative pattern structure are the matrix arrangement.
In the technical scheme, the distance between the vertexes of the adjacent mountain tops is set to be 0.2-2.5 mm.
In the technical scheme, the distance between the bottoms of the adjacent valleys is set to be 0.2-2.5 mm.
In the technical scheme, the vertical height difference between the mountain top center and the valley center is set to be 0.03-0.3 mm.
In the technical scheme, the phase difference rate of the cambered surface radius of the mountain top and the cambered surface radius of the valley is less than 50%.
In the above technical scheme, the ridge is located at the center of the adjacent mountain top.
In the above technical scheme, the lower surface of the glass substrate is provided with a downward concave pattern structure, the downward concave pattern structure is composed of a plurality of concave units which are regularly arranged, and the cross section of each concave unit is polygonal; the corners of the top and the bottom of the downward concave pattern structure are fillets.
In the above technical solution, the polygon is square or hexagonal.
In the technical scheme, the height of the concave units is set to be 0.05-0.20 mm, the distance between adjacent concave units is set to be 0.25-2.0 mm, and the distance between adjacent concave units is set to be 0.10-0.50 mm.
In the technical scheme, the thickness of the glass matrix is 1.6-5.0 mm.
The utility model has the beneficial effects that:
the utility model relates to cover plate glass of an anti-dazzle solar cell module, which comprises a glass substrate, wherein the upper surface of the glass substrate faces to the incident side of sunlight, the lower surface of the glass substrate faces to one side of a solar cell, and the upper surface of the glass substrate is provided with an anti-dazzle pattern structure, the anti-dazzle pattern structure is formed by a plurality of mountain-shaped curved surface units which are respectively continuous along the transverse direction and the longitudinal direction and are connected in a transverse and longitudinal intersecting way, each mountain-shaped curved surface unit comprises a mountain top which is arranged at the middle part and two side surfaces which are recessed from the mountain top to two sides, and the connecting parts of the adjacent mountain-shaped curved surface units form ridgesThe ridges are of structures with protruding two sides and concave middle parts, and adjacent four peaks jointly surround the valleys with the concave middle parts, and all the valleys in the anti-dazzle pattern structure are arranged in a matrix. By adopting the anti-dazzle pattern structure formed by the mountain-shaped curved surface units, each cambered surface radian formed in the pattern structure is larger, and a plurality of different reflecting directions are provided, so that the diffuse reflection effect is greatly improved, the reflection brightness observed by eyes is reduced by more than 50%, compared with the pattern structure in the prior art, the anti-dazzle effect can be improved, and the maximum reflection brightness in the observation angle range of 0-60 degrees reaches 30000cd/m under the outdoor sunlight irradiation condition of 100000lux 2 The anti-dazzle requirements of the surface reflection brightness of the photovoltaic module in some building places such as airports, large urban areas and the like are met; in addition, the solar cover plate glass can be formed by adopting a calendaring process, and the antireflection film is plated by a sol-gel method, so that the antireflection effect can reach 1.8-2.4%, and the large-scale industrial production is easy to realize.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic perspective view of an anti-glare solar cell module cover glass according to the present utility model.
Fig. 2 is a schematic view showing the structure of the upper surface of the cover glass of the anti-glare solar cell module according to the present utility model.
Fig. 3 is a side view of an anti-glare solar cell module cover glass of the present utility model.
Reference numerals:
a glass substrate 10;
mountain-like curved surface unit 20, mountain top 201;
ridges 30, valleys 40.
Detailed Description
The utility model will be further described with reference to the following examples.
As shown in fig. 1, 2 and 3, the cover glass for an anti-glare solar cell module according to this embodiment includes a glass substrate 10, the thickness of the glass substrate 10 is 1.6-5.0 mm, the upper surface of the glass substrate 10 faces the incident side of sunlight, the lower surface of the glass substrate 10 faces one side of the solar cell, the upper surface is provided with an anti-glare pattern structure formed by connecting a plurality of peak-shaped curved surface units 20 which are continuous in the transverse direction and the longitudinal direction respectively and are intersected in the transverse direction, each peak-shaped curved surface unit 20 includes a peak 201 located at the middle part and two side surfaces recessed from the peak 201 to two sides, the junction of adjacent peak-shaped curved surface units 20 forms a ridge 30, the ridge 30 is a structure with two sides protruding and the middle part recessed, and all the peaks 40 in the anti-glare pattern structure are arranged in a matrix. By adopting the anti-dazzle pattern structure formed by the mountain-shaped curved surface units 20, each cambered surface radian formed in the pattern structure is larger, and a plurality of different reflecting directions are provided, so that the diffuse reflection effect is greatly improved, the reflection brightness observed by eyes is reduced by more than 50%, compared with the pattern structure in the prior art, the anti-dazzle effect can be improved, and the maximum reflection brightness in the 0-60 DEG observation angle range reaches 30000cd/m under the outdoor sunlight irradiation condition of 100000lux 2 The anti-dazzle requirements of the surface reflection brightness of the photovoltaic module in some building places such as airports, large urban areas and the like are met.
Specifically, ridge 30 is located at the center of adjacent crests 201.
Specifically, the distance between the peaks of adjacent mountain tops 201 is M,0.2 mm.ltoreq.M.ltoreq.2.5 mm, and 0.5 mm.ltoreq.M.ltoreq.2.0 mm is the preferred embodiment.
The distance between the bottoms of adjacent valleys 40 is N,0.2 mm.ltoreq.N.ltoreq.2.5 mm, and 0.5 mm.ltoreq.M.ltoreq.2.0 mm is the preferred embodiment.
Further, the vertical height difference between the center of the mountain top 201 and the center of the valley 40 is H, and H is 0.03 mm.ltoreq.H.ltoreq.0.3 mm, and 0.08 mm.ltoreq.H.ltoreq.0.25 mm is the preferred embodiment.
Further, the difference between the radius of the cambered surface of the mountain top 201 and the radius of the cambered surface of the valley 40 is less than 50% so as to adapt to the requirements of the calendaring process.
Through the precise design of specific dimensions of the mountain tops 201, the mountain valleys 40, the mountain ridges 30 and each formed cambered surface in the anti-dazzle pattern structure, the surface structure of the sunny surface is more favorable for diffuse reflection, the reflection brightness of the same light source in all directions of the glass surface is reduced, and finally, the maximum reflection brightness in the observation angle range of 0-60 degrees reaches 30000cd/m under the outdoor sunlight irradiation condition of 100000lux 2 The following is given.
In this embodiment, the lower surface of the glass substrate 10 is provided with a pattern structure that is recessed downward, and the pattern structure that is recessed downward is composed of a plurality of regularly arranged recessed units, and the cross section of each recessed unit is polygonal. Preferably, the polygon is square or hexagonal in shape. The corners of the top and bottom of the downward concave pattern structure are fillets.
Specifically, the bottom and top of the glass substrate 10 are planar, and the corners of the top and bottom of the pattern structure are rounded
Specifically, the height of the concave units is set to be 0.05-0.20 mm, the distance between adjacent concave units is set to be 0.25-2.0 mm, and the distance between adjacent concave units is set to be 0.10-0.50 mm.
In this embodiment, the glass substrate 10 is formed by an ultra-white solar glass calendaring process, the dimension error of a single mountain-shaped curved surface unit 20 is less than 20%, the solar transmittance reaches 90% -92%, the upper surface of the glass substrate is coated with a porous SiO2 antireflection film with the thickness of 100-140 nm by a sol-gel coating process, the antireflection effect can reach 1.8% -2.4%, and large-scale industrial production is easy to realize.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (7)

1. The utility model provides an anti-dazzle solar module cover plate glass, includes the glass base member, the upper surface of glass base member is towards the incident side of sunlight, the lower surface of glass base member is towards one side of solar wafer, its characterized in that: the anti-dazzle pattern structure is formed by connecting a plurality of mountain-shaped curved surface units which are continuous in the transverse direction and the longitudinal direction respectively and are intersected in the transverse direction and the longitudinal direction, each mountain-shaped curved surface unit comprises a mountain top which is arranged at the middle part and two side faces which are sunken from the mountain top to the two sides, the connecting parts of the adjacent mountain-shaped curved surface units form ridges, the ridges are of structures with two raised sides and sunken in the middle, and the adjacent four mountain tops jointly surround a valley with a sunken middle part, and all the valleys in the anti-dazzle pattern structure are arranged in a matrix;
the distance between the vertexes of adjacent mountain tops is set to be 0.2-2.5 mm;
the ridge is positioned at the center of the adjacent mountain top;
the lower surface of the glass substrate is provided with a downward concave pattern structure, the downward concave pattern structure is composed of a plurality of concave units which are regularly arranged, and the cross section of each concave unit is polygonal; the corners of the top and the bottom of the downward concave pattern structure are fillets.
2. The anti-glare solar cell module cover glass of claim 1, wherein: the distance between the bottoms of adjacent valleys is set to be 0.2-2.5 mm.
3. The anti-glare solar cell module cover glass of claim 2, wherein: the vertical height difference between the mountain top center and the valley center is set to be 0.03-0.3 mm.
4. An antiglare solar module cover glass according to claim 3, wherein: the phase difference rate of the cambered surface radius of the mountain top and the cambered surface radius of the valley is less than 50%.
5. The anti-glare solar cell module cover glass of claim 1, wherein: the polygon is square or hexagonal.
6. The anti-glare solar cell module cover glass of claim 1, wherein: the height of each concave unit is set to be 0.05-0.20 mm, the distance between every two adjacent concave units is set to be 0.25-2.0 mm, and the distance between every two adjacent concave units is set to be 0.10-0.50 mm.
7. The anti-glare solar cell module cover glass of claim 1, wherein: the thickness of the glass matrix is 1.6-5.0 mm.
CN201910673860.4A 2019-07-24 2019-07-24 Anti-dazzle solar module cover plate glass Active CN110350049B (en)

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CN110350049B true CN110350049B (en) 2024-02-02

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112768541A (en) * 2020-12-31 2021-05-07 彩虹集团新能源股份有限公司 Six pyramid anti-dazzle decorative pattern structures of photovoltaic calendering glass

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Publication number Priority date Publication date Assignee Title
CN102064223A (en) * 2010-11-30 2011-05-18 东莞南玻太阳能玻璃有限公司 Solar battery component cover plate glass and solar battery component
JP2011135011A (en) * 2009-12-25 2011-07-07 Mitsubishi Electric Corp Photovoltaic element module and method for manufacturing the same
CN103595343A (en) * 2013-05-14 2014-02-19 横店集团东磁股份有限公司 Anti-dazzle solar cell assembly and preparation technology thereof
KR101525972B1 (en) * 2015-03-04 2015-06-05 전승윤 Anti-glare cover glass and preparing method thereof
CN105789356A (en) * 2016-04-14 2016-07-20 董友强 Glass-substrate-structure solar cell module
CN207009445U (en) * 2017-07-21 2018-02-13 广州信邦智能装备股份有限公司 A kind of solar cell module cover-plate glass
CN209120124U (en) * 2018-11-23 2019-07-16 东莞南玻太阳能玻璃有限公司 A kind of mountain peak type decorative pattern is anti-to be stained with grey solar energy glass
CN210040231U (en) * 2019-07-24 2020-02-07 东莞南玻太阳能玻璃有限公司 Cover plate glass of anti-dazzle solar cell module

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011135011A (en) * 2009-12-25 2011-07-07 Mitsubishi Electric Corp Photovoltaic element module and method for manufacturing the same
CN102064223A (en) * 2010-11-30 2011-05-18 东莞南玻太阳能玻璃有限公司 Solar battery component cover plate glass and solar battery component
CN103595343A (en) * 2013-05-14 2014-02-19 横店集团东磁股份有限公司 Anti-dazzle solar cell assembly and preparation technology thereof
KR101525972B1 (en) * 2015-03-04 2015-06-05 전승윤 Anti-glare cover glass and preparing method thereof
CN105789356A (en) * 2016-04-14 2016-07-20 董友强 Glass-substrate-structure solar cell module
CN207009445U (en) * 2017-07-21 2018-02-13 广州信邦智能装备股份有限公司 A kind of solar cell module cover-plate glass
CN209120124U (en) * 2018-11-23 2019-07-16 东莞南玻太阳能玻璃有限公司 A kind of mountain peak type decorative pattern is anti-to be stained with grey solar energy glass
CN210040231U (en) * 2019-07-24 2020-02-07 东莞南玻太阳能玻璃有限公司 Cover plate glass of anti-dazzle solar cell module

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