CN111081801B - Lighting and power generation integrated glass with adjustable radiation transmittance - Google Patents
Lighting and power generation integrated glass with adjustable radiation transmittance Download PDFInfo
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- CN111081801B CN111081801B CN201911189007.1A CN201911189007A CN111081801B CN 111081801 B CN111081801 B CN 111081801B CN 201911189007 A CN201911189007 A CN 201911189007A CN 111081801 B CN111081801 B CN 111081801B
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- condenser
- glass
- power generation
- solar
- solar cell
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- 239000011521 glass Substances 0.000 title claims abstract description 46
- 238000002834 transmittance Methods 0.000 title claims abstract description 24
- 230000005855 radiation Effects 0.000 title claims abstract description 23
- 238000010248 power generation Methods 0.000 title claims abstract description 20
- 238000005286 illumination Methods 0.000 claims abstract description 23
- 239000005022 packaging material Substances 0.000 claims abstract description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 2
- 210000001624 hip Anatomy 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 3
- 230000009365 direct transmission Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor 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
- H01L31/04—Semiconductor 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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor 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
- H01L31/04—Semiconductor 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical 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
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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 invention discloses lighting and power generation integrated glass with adjustable radiation transmittance. The solar energy concentrating solar cell panel consists of a condenser, packaging materials and a solar cell panel arranged between double layers of glass. Light incident on the surface is transmitted through the top glass layer and the concentrator below the surface concentrates the light by total internal reflection. The solar panel converts part of the incident radiation into electrical energy, and the rest is dissipated in the form of heat energy. The light collectors are spaced at a certain distance to allow direct transmission of light, which helps provide daytime illumination for the interior of the building and ensures that indoor illumination is not affected on the premise of efficient use of sunlight. The system is based on windows, is not limited to windows, and can be applied to multi-angle multi-scene comprehensive application. The sunlight utilization efficiency is enhanced, the working reliability of the solar cell panel is ensured, and the distance between the condensers can be adjusted according to the illumination requirements of different scenes to meet the indoor normal illumination requirement while the energy consumption is reduced.
Description
Technical Field
The invention belongs to the technical field of solar energy comprehensive utilization and high-efficiency photovoltaic, belongs to primary energy, and particularly relates to lighting and power generation integrated glass with adjustable radiation transmittance.
Background
According to the reports of the world energy council, buildings are the largest power consumers at present, account for about 40% of the energy consumption of most countries, and can reverse the trend of increasing energy consumption only if economically feasible solutions are provided and can be well combined with the existing architecture. Solar energy is being listed in the queue of supplementary energy sources by various countries because of its advantages of no pollution, abundant reserves and the like, and various systems are actively developed to reasonably utilize solar energy.
The net cost of installing building integrated photovoltaic systems is much lower than typical photovoltaic systems, but such systems are limited by solar cell efficiency. The radiation on the optical elements of the system in such a photovoltaic device is refracted, reflected, scattered and then transmitted to the solar cell, and is usually non-uniform, and such radiation may affect the reliability of the solar cell panel to some extent.
While one of the most effective ways to improve the performance of such systems is to concentrate the incident light, a typical concentrated photovoltaic system includes larger sized optical elements, concentrators, smaller sized solar cells, and a heat sink system connected together. Sunlight incident on the optical element is concentrated on solar energy, which can integrate concentrated photovoltaics into any part of the building.
Disclosure of Invention
The invention aims to provide lighting and power generation integrated glass with adjustable radiation transmittance.
The design idea of the invention is as follows: in order to reasonably utilize the building integrated photovoltaic system, ensure the working efficiency of the solar cell and realize the high-efficiency utilization of solar energy, the building integrated photovoltaic system is adopted without influencing the normal illumination in the daytime. Before the sunlight irradiates the solar panel, the sunlight is converged by a certain geometrical structure and then is utilized by the solar panel.
Based on the characteristics, the lighting and power generation integrated glass with the adjustable radiation transmittance is provided. The system studied essentially consists of a concentrator, an encapsulating material and a solar cell placed between two sheets of glass. Light incident on the surface is transmitted through the top glass layer and the subsurface concentrator concentrates the light by total reflection. Solar cells convert part of the incident radiation into electrical energy, the remainder being dissipated as thermal energy. The light collectors are spaced at a certain distance to allow direct transmission of light, which helps provide daytime illumination for the interior of the building and ensures that indoor illumination is not affected on the premise of efficient use of sunlight. The system is based on windows, is not limited to windows, and can be applied to multi-angle multi-scene comprehensive application. The solar energy utilization efficiency is enhanced, the working reliability of the solar cell panel is ensured, the distance between the condensers can be adjusted according to the illumination requirements of different scenes to meet the indoor normal illumination requirement while the energy consumption is reduced, and the solar energy utilization technology has a good application prospect.
In order to achieve the purpose, the technical scheme of the invention is as follows: a lighting and power generation integrated glass with adjustable radiation transmittance is characterized by comprising: the solar photovoltaic module comprises high-transmittance double-layer glass and a plurality of condenser/solar panel modules arranged between the high-transmittance double-layer glass at intervals, wherein the condenser/solar panel modules and the high-transmittance double-layer glass are fixed through a silicon rubber packaging material; each condenser/solar panel module comprises a condenser and a solar panel, the condenser is made of transparent polyurethane material crystals, the light transmittance reaches 95%, the inverted trapezoidal design is adopted, the lower bottom of the inverted trapezoidal condenser is connected with the outer layer glass through a silicon rubber packaging material, the upper bottom of the inverted trapezoidal condenser is connected with the solar panel, and further connected with the inner layer glass through the silicon rubber packaging material; the plurality of condensers/solar cell panel modules are arranged at equal intervals, the installation number of the condensers and the installation distance between adjacent condensers can be adjusted according to requirements, and the distance between the condensers is changed during installation, so that the light entering amount of the indoor space through the distance illumination is controllable, and different illumination requirements are met.
The lighting and power generation integrated glass with adjustable radiation transmittance is characterized in that: a layer of high-reflection silver film is attached to the surface where the two waists of the inverted trapezoidal condenser are located, so that 90-95% of sunlight entering the condenser can be converged to the surface of a solar cell, and the power generation efficiency of the photovoltaic vacuum glass is guaranteed.
The lighting and power generation integrated glass with adjustable radiation transmittance is characterized in that: to ensure optimal optical coupling, the silicone rubber encapsulant is selected to have the same index of refraction as the concentrator.
The lighting and power generation integrated glass with adjustable radiation transmittance is characterized in that: the condenser can enable sunlight to be uniformly radiated to the solar cell panel through refraction after the sunlight enters the condenser, and the working stability of the solar cell panel is improved.
The lighting and power generation integrated glass with adjustable radiation transmittance is characterized in that: the daylighting and power generation integrated glass with adjustable radiation transmittance can improve the sunlight utilization efficiency by 40% due to uniform radiation, and does not influence the indoor normal illumination requirement.
The invention has the beneficial effects that: compared with the prior art, the invention has the following positive effects:
1. the system is not limited to experimental scenes, can be applied to various environments, and can adjust the distance between the condensers according to the illumination requirements of different scenes by adjusting while saving energy consumption so as to meet the indoor normal illumination requirement.
2. The system enables light radiation to be more uniform through the convergence effect of the condenser, and improves the utilization rate of sunlight.
3. The system has the characteristic of enabling light to be uniformly radiated to the solar circuit board, so that the working stability of the solar cell panel is improved, the generation of bad conditions such as local overload or uneven heating is avoided, and the system is favorable for safe and stable operation of electricity.
Drawings
FIG. 1 is a schematic view of the lighting and power generation integrated glass provided by the present invention.
Fig. 2 is a schematic view of the structure of the optical collector provided by the present invention.
Fig. 3 is a schematic view of a 300mm by 300mm glass structure provided in an embodiment of the present invention, wherein (a) is a cross-sectional view and (b) is a top view.
In the figure: 1. the solar cell panel comprises an outer glass plate, 2 a condenser, 3 a high-reflection silver film, 4 a solar cell panel, 5 a silicon rubber packaging material and 6 an inner glass plate.
Detailed Description
The invention is further described below in conjunction with the appended drawings and detailed description examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below are exemplary and are intended to be illustrative, but not limiting, of the present invention, and any modifications, equivalents, or improvements made within the spirit and principle of the present invention, which are not described in detail in the technical solutions below, are known in the art, and are intended to be included within the scope of the claims of the present invention.
Example 1
Referring to fig. 1, sunlight irradiates to an outer glass plate 1, part of light rays enter a condenser 2 through transmission, the light rays are reflected by a high-reflection silver film 3 on the outer side of the condenser 2 and then parallelly incident on a solar cell panel 4, and the solar cell panel 4 further converts the radiant energy into electric energy. The rest light rays penetrate through the outer layer glass plate 1, enter the room through the silicon rubber packaging material 5 and the inner layer glass plate 6, and provide light rays for indoor illumination.
Referring to fig. 2, a structural diagram and related data of the concentrator are used to explain structural features and installation of the concentrator, the concentrator is an inverted trapezoidal geometric structure, a side slope of the concentrator depends on a convergence requirement of a solar optical fiber, that is, about 90-95% of sunlight entering the concentrator can be converged to a solar cell, and the slope requirement is greater than 1.5, that is, k ═ x/y in the diagram is greater than 1.5. The condenser is fixed between the double layers of glass through silicon rubber materials with the same refractive index, the installation distance of the condenser is adjusted according to indoor illumination requirements in the installation process, and specifically, the large-slope photovoltaic vacuum glass is recommended for application environments with higher indoor illumination requirements; for the application environment with low indoor lighting requirements, the photovoltaic vacuum glass with small slope is recommended, and the power generation power of the photovoltaic vacuum glass can be improved.
Example 2
The existing 300 × 300mm glass is one piece, the thickness of a vacuum layer is 2mm, the width of a battery is 10mm, in order to ensure that 30% of sunlight can enter a room for illumination, the number of light collectors needs to be 6, the upper bottom of an inverted trapezoidal light collector is set to be 36mm, and in order to facilitate glass packaging, 6mm packaging distances are reserved around, as shown in fig. 3.
The lighting and power generation integrated glass with the adjustable radiation transmittance realizes the comprehensive utilization of solar energy, on one hand, the light rays radiated on the solar cell panel are more uniform, the light energy utilization rate is improved, and the working stability of the solar cell panel is ensured; on the other hand, partial light enters the room from the space between the condensers, so that the indoor daily illumination is ensured, the light required by illumination can be adjusted according to the requirement, and the utilization rate of sunlight is improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (2)
1. A lighting and power generation integrated glass with adjustable radiation transmittance is characterized by comprising: the solar photovoltaic module comprises high-transmittance double-layer glass and a plurality of condenser/solar panel modules arranged between the high-transmittance double-layer glass at intervals, wherein the condenser/solar panel modules and the high-transmittance double-layer glass are fixed through a silicon rubber packaging material; each condenser/solar panel module comprises a condenser and a solar panel, the condenser is made of transparent polyurethane material crystals, the light transmittance reaches 95%, the inverted trapezoidal design is adopted, the upper bottom of the inverted trapezoidal condenser is connected with the outer layer glass through silicon rubber packaging materials, the lower bottom of the inverted trapezoidal condenser is connected with the solar panel, and further connected with the inner layer glass through the silicon rubber packaging materials; the plurality of condenser/solar panel modules are arranged at equal intervals, the installation number of the condensers and the installation distance between adjacent condensers can be adjusted according to requirements, and the light entering amount of the indoor space through the space illumination can be controlled by changing the space during installation, so that different illumination requirements are met;
a layer of high-reflection silver film is adhered to the surface where the two waists of the inverted trapezoidal condenser are located, so that 90-95% of sunlight entering the condenser can be converged to the surface of a solar cell, and the power generation efficiency of the photovoltaic vacuum glass is guaranteed;
the refractive index of the selected silicon rubber packaging material is the same as that of the condenser;
the condenser can enable sunlight to be uniformly radiated to the solar cell panel through refraction after the sunlight enters the condenser, and the working stability of the solar cell panel is improved.
2. A lighting and power generation integrated glass as claimed in claim 1, wherein the glass has an adjustable radiation transmittance, and is characterized in that: the daylighting and power generation integrated glass with adjustable radiation transmittance can improve the sunlight utilization efficiency by 40% due to uniform radiation, and does not influence the indoor normal illumination requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189007.1A CN111081801B (en) | 2019-11-28 | 2019-11-28 | Lighting and power generation integrated glass with adjustable radiation transmittance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911189007.1A CN111081801B (en) | 2019-11-28 | 2019-11-28 | Lighting and power generation integrated glass with adjustable radiation transmittance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111081801A CN111081801A (en) | 2020-04-28 |
| CN111081801B true CN111081801B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911189007.1A Active CN111081801B (en) | 2019-11-28 | 2019-11-28 | Lighting and power generation integrated glass with adjustable radiation transmittance |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278350Y (en) * | 2008-07-31 | 2009-07-22 | 杭州永莹光电有限公司 | High power concentration type solar photovoltaic component |
| CN101702410B (en) * | 2009-10-25 | 2011-12-07 | 新疆天和聚能光伏科技有限公司 | Double inclined plane reflecting condensation solar photovoltaic battery module |
| CN102237428A (en) * | 2010-04-29 | 2011-11-09 | 富士迈半导体精密工业（上海）有限公司 | Solar cell |
| CN102013445B (en) * | 2010-06-10 | 2013-09-04 | 常州天合光能有限公司 | Solar cell module capable of adjusting transmission of light |
| CN103973216A (en) * | 2014-04-29 | 2014-08-06 | 北京理工大学 | Photovoltaic, photo-thermal and lighting energy comprehensive utilization device |
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