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
- Publication number
- 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
- lighting
- power generation
- sunlight
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
- H10F19/807—Double-glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/40—Optical elements or arrangements
- H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
- H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or 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]
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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
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- Photovoltaic Devices (AREA)
Abstract
本发明公开一种辐射透射比可调的采光发电一体化玻璃。由聚光器、封装材料和置于双层玻璃之间的太阳能电池板组成。入射到表面的光通过顶部玻璃层发生透射，表面以下的聚光器通过内全反射使光集中。太阳能电池板将部分入射辐射转化为电能，其余的则以热能的形式消散。聚光器之间有一定的间距，允许光直接传输，这有助于为建筑内部提供日间照明，保证在太阳光得到高效利用的前提下室内照明不受到影响。系统的应用基于窗户但不局限与窗户，可适用与多角度多场景的全面应用。不仅增强太阳光利用效率，且保证了太阳能电池板工作的可靠程度，在生产能耗的同时可根据不同场景照明需求对聚光器间距进行调整以满足室内正常照明需要。
The invention discloses a lighting and power generation integrated glass with adjustable radiation transmittance. Consists of a concentrator, encapsulation material and solar panels placed between double glazing. The light incident on the surface is transmitted through the top glass layer, and the light concentrator below the surface concentrates the light by total internal reflection. Solar panels convert some of the incident radiation into electricity, while the rest is dissipated as heat. The concentrators are spaced to allow direct light transmission, which helps to provide daytime lighting inside the building, ensuring that the interior lighting is not compromised while the sunlight is used efficiently. The application of the system is based on windows but not limited to windows, and can be applied to comprehensive applications from multiple angles and multiple scenes. It not only enhances the utilization efficiency of sunlight, but also ensures the reliability of the solar panel operation. While producing energy consumption, the spacing of the concentrators can be adjusted according to the lighting requirements of different scenarios to meet the normal indoor lighting needs.
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 |
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| 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 |
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| Publication Number | Publication Date |
|---|---|
| CN111081801A CN111081801A (en) | 2020-04-28 |
| CN111081801B true CN111081801B (en) | 2022-04-19 |
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| CN201911189007.1A Expired - Fee Related CN111081801B (en) | 2019-11-28 | 2019-11-28 | Lighting and power generation integrated glass with adjustable radiation transmittance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113701267A (en) * | 2020-05-21 | 2021-11-26 | 湖北工业大学 | Zero energy consumption building integrated photovoltaic energy supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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Granted publication date: 20220419 |