CN216513535U - Cover plate glass of color photovoltaic module - Google Patents
Cover plate glass of color photovoltaic module Download PDFInfo
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- CN216513535U CN216513535U CN202120425862.4U CN202120425862U CN216513535U CN 216513535 U CN216513535 U CN 216513535U CN 202120425862 U CN202120425862 U CN 202120425862U CN 216513535 U CN216513535 U CN 216513535U
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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
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Abstract
The utility model discloses a colored photovoltaic module cover plate glass, which comprises a glass substrate, wherein a compact anti-reflection film, a porous anti-reflection film and a dielectric layer are sequentially laminated on the top surface of the glass substrate from bottom to top; the compact anti-reflection film is compact silicon oxide, and the refractive index of the compact anti-reflection film at the wavelength of 550nm is 1.45-1.8; the porous antireflection film is made of porous silicon oxide, and the refractive index of the porous antireflection film at the wavelength of 550nm is 1.45-1.55; the refractive index of the dielectric layer at the wavelength of 550nm is 1.85-2.5; the cover plate glass can ensure that the prepared colorful photovoltaic module has the advantages of freely selectable and changeable appearance colors, has little influence on photoelectric conversion rate and is anti-ultraviolet aging, and is suitable for being applied to the integrated market of photovoltaic buildings on a large scale.
Description
Technical Field
The utility model relates to the technical field of solar photovoltaic cells, in particular to cover plate glass of a colorful photovoltaic module.
Background
The Building Integrated Photovoltaic (BIPV) is one of the most important markets in the field of photovoltaic power generation application, while a photovoltaic module is generally formed by laminating and packaging a battery piece (comprising a silicon wafer, a CIGS (copper indium gallium selenide) or CdTe (cadmium telluride) film), a transparent EVA (ethylene vinyl acetate) or POE (polyolefin elastomer) adhesive film and a photovoltaic glass plate, the whole display is black, the color is single, the aesthetic requirement of a building cannot be met, for the building, an architect hopes to select the favorite color and style of the owner to show the building personality, and the aesthetic requirement of the owner is met, therefore, as a core component of the Building Integrated Photovoltaic (BIPV) of photovoltaic power generation, the photovoltaic module not only needs to have higher performance, but also needs to meet the requirement of people on appearance color.
In order to meet the requirement of the building on the color of the exterior wall surface, some technical schemes are disclosed for manufacturing a color photovoltaic module, for example, in patent documents of "a color photovoltaic module and a preparation method thereof" (publication number CN 108242473B), a commonly used light receiving surface packaging adhesive film layer EVA or POE is replaced by a color thermoplastic high polymer adhesive film, and according to the architectural design of an architect, a pigment with a required color is added into a thermoplastic high polymer to realize the color conversion and adjustment of the color photovoltaic module, but the thickness of the color adhesive film prepared by the method is usually more than 50 micrometers, some of the color adhesive films are even more than 1000 micrometers, when incident light passes through the color adhesive film, the light loss is high, and the photoelectric conversion rate of the module is greatly influenced; on the other hand, most of the pigments added in the thermoplastic high molecular polymer are organic pigments, such as acrylic powder coating or polyester powder coating, and the organic coatings can fade under ultraviolet light for a long time, so that the building appearance is slowly influenced after the organic coatings are accumulated for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the cover plate glass for the colored photovoltaic module, which can ensure that the prepared colored photovoltaic module has the advantages of freely selectable and transformable appearance colors, has little influence on photoelectric conversion rate, is resistant to ultraviolet aging and is suitable for being applied to the integrated market of photovoltaic buildings on a large scale.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the cover plate glass of the color photovoltaic module comprises a glass substrate, wherein a compact anti-reflection film, a porous anti-reflection film and a dielectric layer are sequentially laminated on the top surface of the glass substrate from bottom to top;
the compact anti-reflection film is compact silicon oxide, and the refractive index of the compact anti-reflection film at the wavelength of 550nm is 1.45-1.8;
the porous antireflection film is made of porous silicon oxide, and the refractive index of the porous antireflection film at the wavelength of 550nm is 1.45-1.55;
the refractive index of the dielectric layer at the wavelength of 550nm is 1.85-2.5.
Furthermore, the thickness of the compact anti-reflection film is 80-180 nm.
Further, the thickness of the porous antireflection film is 300-600 nm.
Further, the thickness of the dielectric layer is 50-380 nm.
Further, the dielectric layer is SiN or TiO2、SnO2ZnO or ZrO2。
Further, the glass substrate adopts ultra-white float glass or ultra-white rolled glass.
The utility model has the advantages that the laminated antireflection film is formed by combining the compact antireflection film and the porous antireflection film, the light transmittance is greatly improved, the porous antireflection film is used as a carrier for medium film deposition, the medium film uniformly covers the surface of the porous antireflection film, the appearance structure is kept unchanged, when incident light enters the medium film/the porous antireflection film/the compact antireflection film formed by high refractive index material/low refractive index material from air, the incident light is refracted and reflected for multiple times, enters the glass substrate and finally passes through the glass, in the process, as the refractive index of the medium film covered on the porous antireflection film is far higher than that of the compact antireflection film and the porous antireflection film formed by silicon oxide, part of light with specific wavelength is reflected back to present specific color, and the specific color depends on the thickness of the medium film; the compact anti-reflection film increases the light transmittance on one hand, and on the other hand, the compact anti-reflection film is used as a middle transition layer of the outer porous anti-reflection film, so that the mechanical stability of the porous anti-reflection film is greatly enhanced, the porous anti-reflection film further improves the light transmittance on the other hand, and simultaneously provides an uneven carrier for the high-refractive-index dielectric film, when light enters an uneven interface formed by the high-refractive-index dielectric film/the porous low-refractive-index anti-reflection film, an interference phenomenon occurs, and a color with a specific wavelength is generated; the cover plate glass has the advantages that the light intensity entering the cover plate glass is far greater than the reflected light with a specific color, naked eyes cannot clearly feel the bright specific color, when the cover plate glass covers a black body material, the naked eyes can obviously feel the specific color, so when the black material is a solar cell piece, such as a crystalline silicon solar cell piece, a CIGS thin film solar cell or a CdTe thin film solar cell, the cover plate glass presents the specific color, and when the cover plate glass is applied to a component formed by the solar cell pieces, the color photovoltaic component presenting various colors is produced.
Drawings
The utility model is further illustrated with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention.
Detailed Description
As shown in fig. 1, the utility model provides a cover plate glass for a color photovoltaic module, which comprises a glass substrate 1, wherein a dense antireflection film 2, a porous antireflection film 3 and a dielectric layer 4 are sequentially laminated on the top surface of the glass substrate 1 from bottom to top.
The glass substrate 1 is made of ultra-white float glass or ultra-white rolled glass, and the thickness of the glass substrate 1 is 1.5-6.0 mm.
The compact anti-reflection film 2 is a compact silicon oxide, and the refractive index of the compact anti-reflection film at the wavelength of 550nm is 1.45-1.8; the thickness of the compact antireflection film is 80-180 nm.
The porous antireflection film 3 is porous silicon oxide, and the refractive index of the porous antireflection film at the wavelength of 550nm is 1.45-1.55; the thickness of the porous antireflection film is 300-600 nm.
The refractive index of the dielectric layer at the wavelength of 550nm is 1.85-2.5, the thickness of the dielectric layer is 50-380 nm,
the dielectric layer is SiN or TiO2、SnO2ZnO or ZrO2。
Preferably, the thickness of the glass substrate 1 is 1.8-3.2 mm, the thickness of the porous antireflection film 3 is 380-480 nm, the thickness of the dielectric layer 4 is 50-380 nm, the color of the cover plate glass depends on the thickness of the dielectric layer 4, and the specific correspondence between the thickness and the color is shown in table 1.
| Dielectric layer thickness/nm | Colour(s) | Light transmittance% |
| 30-50 | Grey colour | 92-93 |
| 90-120 | Light yellow-golden yellow | 89-90 |
| 150-180 | Light blue-violet blue | 87-88 |
| 330-360 | Green colour | 85-86 |
Table 1 when the dielectric layer material is SiN, the correspondence between the dielectric layer thickness, the corresponding color, and the light transmittance.
The porous low-refractive-index anti-reflection film covered on the compact anti-reflection film presents an uneven morphology structure, and an uneven carrier is provided for the high-refractive-index dielectric film.
The foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model in any manner; those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (6)
1. The cover plate glass of the color photovoltaic module is characterized by comprising a glass substrate, wherein a compact antireflection film, a porous antireflection film and a dielectric layer are sequentially laminated on the top surface of the glass substrate from bottom to top;
the compact anti-reflection film is compact silicon oxide, and the refractive index of the compact anti-reflection film at the wavelength of 550nm is 1.45-1.8;
the porous antireflection film is made of porous silicon oxide, and the refractive index of the porous antireflection film at the wavelength of 550nm is 1.45-1.55;
the refractive index of the dielectric layer at the wavelength of 550nm is 1.85-2.5.
2. The cover glass for a color photovoltaic module according to claim 1, wherein the thickness of the dense antireflection film is 80 to 180 nm.
3. The cover glass for a color photovoltaic module according to claim 1, wherein the thickness of the porous antireflection film is 300 to 600 nm.
4. The cover glass for a color photovoltaic module according to claim 1, wherein the thickness of the dielectric layer is 50 to 380 nm.
5. The cover glass of claim 1, wherein the dielectric layer is SiN or TiO2、SnO2ZnO or ZrO2。
6. The cover glass for a color photovoltaic module according to claim 1, wherein the glass substrate is made of ultra-white float glass or ultra-white rolled glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425862.4U CN216513535U (en) | 2021-02-26 | 2021-02-26 | Cover plate glass of color photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120425862.4U CN216513535U (en) | 2021-02-26 | 2021-02-26 | Cover plate glass of color photovoltaic module |
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| Publication Number | Publication Date |
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| CN216513535U true CN216513535U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120425862.4U Active CN216513535U (en) | 2021-02-26 | 2021-02-26 | Cover plate glass of color photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149458A (en) * | 2021-02-26 | 2021-07-23 | 中建材蚌埠玻璃工业设计研究院有限公司 | Cover plate glass of colored photovoltaic module and preparation method thereof |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149458A (en) * | 2021-02-26 | 2021-07-23 | 中建材蚌埠玻璃工业设计研究院有限公司 | Cover plate glass of colored photovoltaic module and preparation method thereof |
| CN113149458B (en) * | 2021-02-26 | 2023-08-22 | 中建材玻璃新材料研究院集团有限公司 | Color photovoltaic module cover plate glass and preparation method thereof |
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