WO2013008665A1 - Condenseur, système de condensation de lumière, dispositif de génération d'énergie solaire et système solaire - Google Patents

Condenseur, système de condensation de lumière, dispositif de génération d'énergie solaire et système solaire Download PDF

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Publication number
WO2013008665A1
WO2013008665A1 PCT/JP2012/066897 JP2012066897W WO2013008665A1 WO 2013008665 A1 WO2013008665 A1 WO 2013008665A1 JP 2012066897 W JP2012066897 W JP 2012066897W WO 2013008665 A1 WO2013008665 A1 WO 2013008665A1
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Prior art keywords
light
condensing
concentrator
light guide
modification
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PCT/JP2012/066897
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English (en)
Japanese (ja)
Inventor
高部　篤
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株式会社レーベン販売
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Publication of WO2013008665A1 publication Critical patent/WO2013008665A1/fr

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/12—Light guides
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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

Definitions

  • the present invention relates to a collector that collects light such as sunlight.
  • the present invention claims the priority of Japanese Patent Application No. 2011-153379 filed on July 11, 2011.
  • the contents described in the application are as follows: Is incorporated into this application by reference.
  • the condensing optical system of such a concentrator mainly uses lenses such as Fresnel lenses and rod lenses, and mirrors such as concave mirrors and plane mirrors, directly by transmission, or indirectly by reflection, Concentrate sunlight.
  • a general concentrating solar / solar system is provided with a tracking device, and the light receiving surface tracks the sun, thereby generating power due to the difference between the sunlight irradiation direction and the light receiving surface. This prevents a decrease in efficiency.
  • Patent Document 1 sunlight is applied to a light receiving surface of a solar cell by combining a secondary concentrator made of a conical condensing member having a prism-shaped protrusion formed on the inner peripheral surface of a flat Fresnel lens.
  • a secondary concentrator made of a conical condensing member having a prism-shaped protrusion formed on the inner peripheral surface of a flat Fresnel lens there is disclosed a technique of suppressing the unevenness of incidence of light and mitigating a decrease in power generation efficiency due to errors still occurring using a tracking device.
  • Patent Document 2 discloses a technology that allows and uses incident light from a wide range of angles by using a highly functional sheet that radiates light incident on the light receiving surface to the lower surface.
  • the incident angle that can still be used is limited, and thus power generation efficiency may be extremely reduced at angles outside the allowable range. There is.
  • the light collecting effect could hardly be exhibited on rainy or cloudy days.
  • the reflected light of snow in snowy countries, the reflected light of sandy beaches, and the reflected light of buildings and other buildings could not be used.
  • an object of the present invention is to provide a concentrator capable of condensing a wide range of light with high efficiency.
  • the light collector according to the present invention includes a cylindrical light collecting portion that forms a circular light receiving surface at one end, and a light guide portion that gradually decreases in diameter from the light collecting portion toward the other end. It is characterized by that.
  • 1 is a perspective view of a condenser 1. It is the upper side figure and sectional drawing of the collector 1a which concern on the modification 1 of 1st embodiment of this invention. It is sectional drawing of the collector 1b which concerns on the further modification 2 of the modification 1 of this invention. It is sectional drawing of the collector 1c which concerns on the further modification 3 of the modification 1 of this invention. It is sectional drawing of the collector 1d which concerns on the further modification 4 of the modification 2 of this invention. It is sectional drawing of the collector 1e which concerns on the further modification 5 of the modification 1 of this invention.
  • (C) It is a perspective view of the collector 1n which concerns on the modification 13 of this invention.
  • (A) It is a disassembled perspective view of the collector 1f.
  • (B) It is sectional drawing of the collector 1j. It is explanatory drawing for demonstrating the light collection characteristic of the collector 1j.
  • It is the schematic of the condensing system 2 which concerns on 2nd embodiment of this invention.
  • It is the schematic of the solar power generation device 22 which concerns on the modification 15 using the condensing system 2 which concerns on 2nd embodiment of this invention.
  • a transparent body for example, a cylinder, a prism, etc.
  • a refractive index higher than the outside air and a substantially parallel surface will be described.
  • FIG. 22A is an explanatory diagram of the light collecting action in the cylindrical transparent body 91.
  • the light a parallel to the side surface of the transparent body 91 passes through as it is and reaches the light emitting surface B.
  • the light incident on the light receiving surface A obliquely is totally reflected on the side surface and reaches the light emitting surface B by repeating this.
  • FIG. 22B is an explanatory diagram of light incident on the transparent body 91 from an oblique direction. As shown in FIG. 22B, the incident light X from the oblique direction is totally reflected with the outer peripheral surface as a reflection surface, and is emitted from the light emission surface B as light Y.
  • FIG. 22C is an explanatory diagram of the light collection phenomenon caused by the transparent body 91. Since the outer peripheral surface acts as a reflection surface, the light receiving surface A of the transparent body 91 can capture light in a wide angle range (that is, up to an angle near the critical angle of the transparent body 91) in addition to vertical light. it can.
  • the length of the transparent body is preferably several times the diameter of the cylinder.
  • the angle range of the emitted light from the light-emitting surface B is equivalent to the angle range of the incident light on the light-receiving surface A, so that it becomes scattered light and its use becomes difficult. Then, the light collection principle of the transparent body of another shape with a larger light collection action will be described next.
  • FIG. 23 (a) and 23 (b) are explanatory diagrams of the light condensing action in the transparent body 92.
  • FIG. The transparent body 92 includes a cylindrical light condensing part and a linear tapered light guiding part whose diameter is gradually reduced on the light emitting surface B side.
  • the transparent body 92 guides the light incident from the light receiving surface A to the light emitting surface B by totally reflecting the outer peripheral surface as a reflecting surface. According to such a transparent body 92, since the area of the light emitting surface B is smaller than that of the light receiving surface A, the scattering of the emitted light is suppressed more than the transparent body 91.
  • the reflection angle may be less than the critical angle on the tapered surface of the light collector, so that light leaks from the side surface.
  • the transparent body 93 shown in FIG. 23C has a mirror structure on the inner side of the light guide portion of the transparent band 92 so that light less than the critical angle is reliably reflected and guided to the light emission surface B. It is a thing.
  • the transparent body 94 shown in FIG. 23D has a long light guide portion and a gentle inclination angle of the tapered surface, thereby suppressing the emission angle from the light emission surface B.
  • the emission angle from the light emission surface B can be suppressed by bringing the tapered surface closer to a hyperbola as in the transparent body 95 shown in FIG. Is possible. Furthermore, by providing a light guide correction part in which the diameter of the light guide part is partially expanded as in the transparent body 96 shown in FIG. 23 (f), the emission angle can be corrected to a gentle angle.
  • the area of the light receiving surface A must be enlarged.
  • the major axis is several times longer than the minor axis. Therefore, as the light receiving surface A is enlarged, the entire length becomes longer and exponentially heavier. End up. This is not preferable because, for example, sink marks appear during injection molding or the installation location is limited.
  • the transparent body 97 is formed by layering a plurality of columnar condensing portions with a gap therebetween. According to this, since a plurality of light transmission paths are formed between the opposed peripheral surfaces, even when the area of the light receiving surface A is enlarged by enlarging the minor axis, it is not necessary to significantly extend the major axis. Further, if a plate-like member having a mirror surface structure is inserted into the gap, light can be transmitted without leakage.
  • the present invention provides a concentrator that suppresses leakage and realizes a high condensing function in consideration of the above condensing principle.
  • FIG. 1 is a top view and a cross-sectional view of a condenser 1 according to a first embodiment of the present invention.
  • FIG. 2 is a perspective view of the condenser 1.
  • the concentrator 1 is a funnel-shaped member in which a light condensing unit 11 developed on the light source side and a light guiding unit 12 that collectively guides light from the light converging unit 11 are integrally formed.
  • the condensing part 11 has a conical hollow 13 inside, and an inversely tapered main body part 11A that gradually increases in diameter toward the opening 15 and between the apex 13A of the hollow 13 and the light guiding part 12. And a base 11B formed on the base.
  • the outer peripheral surface 14a of the condensing part 11 is substantially parallel to the inner peripheral surface 14b.
  • the member thickness is the largest on the apex 13A side of the base 11B.
  • the edge of the opening 15 forms an annular light receiving surface A, and the light collecting unit 11 reflects and totally reflects the external light received by the light receiving surface A on the outer peripheral surface 14a and the inner peripheral surface 14b. Collect to 12.
  • the light guide portion 12 is a cylindrical member whose outer peripheral surface 14a extends from the base portion 11B in the direction opposite to the light receiving surface A, and the outer peripheral surface thereof is substantially parallel to the axis R.
  • the diameter of the light guide unit 12 is smaller than any diameter of the light collecting unit 11.
  • a circular light emitting surface B is formed on the side opposite to the light receiving surface A, and the light incident from the light receiving surface A is guided and emitted from the light emitting surface B.
  • Such a concentrator 1 is made of a transparent light guide material having translucency and a high refractive index.
  • a material having a refractive index higher than that of the outside air it becomes possible to totally reflect incident light having a critical angle or more at the boundary surfaces (outer peripheral surface 14a and inner peripheral surface 14b).
  • Examples of such a material include quartz glass, plastic resin (acrylic, polycarbonate, polypropylene, elastomer, etc.), silicon rubber, and the like.
  • the total reflection angle is determined from the light guide material and the refractive index of air.
  • the external light a incident on the light receiving surface A from the outer side of the tapered axis of the outer peripheral surface 14a and the inner peripheral surface 14b and the external light c incident on the light receiving surface A from the inner side of the tapered axis are the outer peripheral surface 14a and the outer surface 14a of the main body 11A. Total reflection is repeated by the inner peripheral surface 14b, passes through the base portion 11B, and reaches the light guide portion 12. Further, the external light b incident on the light receiving surface A at the same angle as the taper axis passes through the main body portion 11A and the base portion 11B and directly reaches the light guide portion 12.
  • the external lights a to c that have reached the light guide unit 12 in this way are also totally reflected by the light guide unit 12 and are finally emitted from the light emission surface B as emitted light a 'to c'.
  • the collector 1 since the incident light takes a path with the outer peripheral surface 14a and the inner peripheral surface 14b being substantially parallel, the change in the incident angle with respect to the interface is small. It is possible to collect light while suppressing radiation loss.
  • FIG. 3 is a top view and a cross-sectional view of a condenser 1a according to Modification 1 of the first embodiment of the present invention.
  • the light collector 1 a is different from the light collector 1 in that the base portion 11 ⁇ / b> B is not provided between the main body portion 11 ⁇ / b> A and the light guide portion 12.
  • the external lights d and e incident on the light receiving surface A at an angle larger than the external lights a to c are transmitted to the outer peripheral surface 14 a and the inner peripheral surface 14 b of the main body 11 A. After repeating the total reflection, the light is incident at an angle less than the critical angle on the outer peripheral surface 14a having an inclination opposite to that at the base 11B. Therefore, they may leak to the outside as transmitted light d ′ and e ′ at the base portion 11 ⁇ / b> B and do not reach the light guide portion 12.
  • the peripheral surface can be formed substantially in parallel at most positions. Therefore, in the above embodiment, external light d and e that leak to the outside at the base portion 11B reach the light guide portion 12 without leaking and are emitted from the light emitting surface B.
  • the concentrator 1a as described above, it is possible to suppress the leakage of the incident light and to guide the incident light having more angles to the light emitting surface B.
  • FIG. 4 is a cross-sectional view of a condenser 1b according to a further modification 2 of the modification 1 of the present invention.
  • the condensing part 11 has the reverse taper-shaped parallel outer peripheral surface 14a and inner peripheral surface 14b which expand exponentially as it goes to the opening 15. As shown in FIG. This is different from the condenser 1b.
  • the circumference of the light receiving surface A in the condensing unit 11 is widened and the area thereof is also enlarged, so that it is possible to collect a wider range of outside light.
  • FIG. 5 is a cross-sectional view of a condenser 1c according to a third modification of the first modification of the present invention.
  • the light collector 1 c is different from the light collector 1 a in that the inner surface 14 b of the light collector 11 has a mirror surface inside.
  • This can be formed by, for example, aluminum deposition plating or nickel plating. Alternatively, a mirror-finished thin metal may be formed and pasted.
  • the inner surface of the outer peripheral surface 14a can be a mirror structure.
  • FIG. 6 is a cross-sectional view of a condenser 1d according to a further modification 4 of the modification 2 of the present invention.
  • the concentrator 1d has a shape similar to that of the concentrator 1b, but the plate-like member 16 whose inner surface forming the outer peripheral surface 14a and the inner peripheral surface 14b has a mirror structure is provided with a gap therebetween. This is different from the condenser 1b in that it is configured.
  • the light receiving surface is a gap between the two plate-like members 16, and the light-emitting surface is a hole in the cylindrical plate-like member 16 that forms the outer peripheral surface 14a. Therefore, the condenser 1 d takes incident light into the gap A ′ corresponding to the light receiving surface A and emits the emitted light from the hole B ′ corresponding to the light emitting surface B. According to such a configuration, attenuation and radiation loss in the path are hardly caused, and more efficient light collection is possible.
  • FIG. 7 is a cross-sectional view of a condenser 1e according to a further modification 5 of the modification 1 of the present invention.
  • the concentrator 1e is obtained by superposing a small concentrator 1a 'having substantially the same shape on the hollow 13 of the concentrator 1a and connecting the light guide portions 12 of the two concentrators. At this time, the two concentrators are connected so that the centers of the light-emitting surfaces B are aligned on the axis R.
  • the condenser 1a ′ is formed such that the position of the light receiving surface A is higher than that of the condenser 1a.
  • incident light a to f is taken from the light receiving surfaces A of both the concentrator 1a and the concentrator 1a ', and emitted light a' to f 'is emitted from the light emitting surface B. It can. Therefore, it is possible to collect a lot of light with a wider light receiving surface.
  • FIG. 8 is a cross-sectional view of a condenser 1f according to a further modification 6 of the modification 2 of the present invention.
  • the concentrator 1f includes a plurality of inner condensing portions 1b ′ having a circumferential surface formed in an inversely tapered shape that expands exponentially in the hollow 13 of the concentrator 1b, and a central concentrator that does not have a hollow.
  • the portion 1b ′′ is combined with a gap in between (here, for convenience, the inner light collecting portion excluding the center is referred to as the inner light collecting portion 1b ′).
  • the inner condensing portion 1b ′ has a shape along the inner peripheral surface 14b of the outer condensing portion, and is connected by, for example, high frequency welding so that the center thereof is aligned on the axis R. Therefore, the diameter of the light receiving surface A becomes smaller as the inner light condensing portion becomes smaller, and conversely, the height of the light receiving surface A is designed to be higher as the inner light condensing portion. Thereby, each condensing part can each receive the light which has the incident angle of the condensing angle
  • corner (theta) by each light-receiving surface A.
  • each condensing part has the light receiving surface A, a larger light receiving area can be realized.
  • the light incident from each light receiving surface A is collected on the light guide unit 12 through a path that is substantially parallel to the circumferential surface and is thinner than the circumferential diameter of the light collecting unit, so that radiation loss is reduced. It can be suppressed. Therefore, it becomes possible to collect more external light from more polygons efficiently.
  • FIG. 9 is a cross-sectional view of a condenser 1g according to a further modification 7 of the modification 3 of the present invention.
  • the light collector 1g includes a plurality of inner light collecting portions 1c ′ having a circumferential surface formed in an inversely tapered shape that linearly expands in the hollow of the light collector 1c, and a central light collecting portion 1c that does not have a hollow. ”Are superimposed with no gap in between (here, for the sake of convenience, all the inner condensing portions except the center are referred to as inner condensing portions 1c ′).
  • Each condensing part is connected so that the centers thereof are aligned on the axis R, and the inner condensing part has a shape that fits into the hollow of one outer condensing part without a gap. Further, the diameter of the light receiving surface A becomes smaller as the inner condensing portion becomes smaller, and conversely, the height of the light receiving surface A is designed as higher as the inner condensing portion.
  • the concentrator 1g has a total of four condensing units, but any number of condensing units may be combined.
  • such a concentrator 1g after forming each condensing part separately, after making the front and back of the outer peripheral surfaces of the inner condensing part 1c ′ and the outer condensing part 1c ′′ into a mirror structure with a plating or the like, It can be formed by fitting and condensing each condensing part. In that case, the whole can be integrally connected by filling a space
  • the light g ⁇ i incident from the light receiving surface A of each condensing unit is emitted from the light emitting surface B as emitted light g′ ⁇ i ′.
  • the reflection on the outer peripheral surface and the inner peripheral surface of each condensing part is ensured, and the radiation loss is suppressed.
  • FIG. 10 is a perspective view of a condenser 1h according to a further modification 8 of the modification 7 of the present invention.
  • the concentrator 1h has the same shape as the concentrator 1g, but each condensing portion is overlapped with a plate-like member 16 having a mirror structure that forms the outer peripheral surface and the inner peripheral surface of the concentrator. It differs from the collector 1g in that it is configured together.
  • Such a concentrator 1h can be connected by supporting each condensing part with, for example, the connection plate 17. Further, the light receiving surface and the light emitting surface are gaps formed by the plate-like member 16, and incident light is taken into the gap A ′ corresponding to the light receiving surface A and emitted from the hole B ′ corresponding to the light emitting surface B. To emit light. Therefore, attenuation and radiation loss in the path hardly occur, and more efficient light collection is possible.
  • FIG. 11 is a cross-sectional view of a condenser 1i according to a further modification 9 of the modification 6 of the present invention.
  • the concentrator 1i overlaps the hollow 13 of the concentrator 1d with a plurality of inner condensing portions 1d ′ having a circumferential surface formed in an inversely tapered shape that expands exponentially with a gap in between.
  • 1d ′ all the condensing portions formed on the inside are referred to as 1d ′.
  • Each condensing part is connected so that the centers thereof are aligned on the axis R, and the inner condensing part has a shape along the inner peripheral surface 14b of one outer condensing part.
  • the diameter of the light receiving surface A ′ is smaller as the inner condensing portion is smaller, and the height of the light receiving surface A ′ is the same in the inner condensing portion.
  • the concentrator 1i has eight condensing parts here, you may combine how many condensing parts.
  • incident light can be taken into the gap A ′ as a wider light receiving surface.
  • attenuation and radiation loss are less likely to occur in the path, more efficient light collection is possible.
  • Fig.12 (a) is a perspective view of the collector 1k which concerns on the modification 10 of this invention.
  • the concentrator 1k includes a concentrator (for example, a concentrator 1f) having a configuration in which a plurality of reverse-tapered condensing portions that expand exponentially in diameter are combined with two cutting planes sandwiching the axis R. It has a cut shape. It is assumed that the interval between both cutting planes is inclined with respect to the axis R so as to be wide on the light receiving surface A side and narrow toward the light emitting surface B side.
  • a plurality of condensing pieces 111 having light receiving surfaces A arranged substantially in parallel are arranged on both sides of the axis R.
  • FIG. 12B is a perspective view of the light collecting piece 111.
  • the condensing piece 111 is formed in a curved truncated pyramid shape having an outer peripheral surface 14a and an inner peripheral surface 14b which are substantially parallel curved surfaces, and two side surfaces 14c, and incident light a incident from the light receiving surface A is The light is totally reflected on any one of the four surfaces, guided to the light guide unit 12, and reaches the light emission surface B.
  • the collector 1k it is possible to efficiently collect sunlight by arranging the light receiving surfaces A along the solar orbit.
  • the shape of the light receiving surface is square when viewed from above, the light receiving surfaces of the plurality of concentrators 1k can be arranged without gaps, and high light collecting ability can be exhibited in a small space.
  • FIG. 13A is a perspective view of a condenser 11 according to the eleventh modification of the present invention.
  • the concentrator 11 is a leaf-shaped condensing piece having a light receiving surface A that is a curved surface forming a leaf-shaped edge and a condensing unit 11 including an outer peripheral surface 14a and an inner peripheral surface 14b that are parallel to each other.
  • an uneven surface 121 is formed on the entire surface (only part of the surface is shown in FIG. 13A).
  • light a and b incident from the light receiving surface A are totally reflected by the outer peripheral surface 14a and the inner peripheral surface 14b, and are guided to the light guide unit 12 to the light emitting surface B.
  • the light c received by the uneven surface 121 on the surface is also totally reflected by the outer peripheral surface 14a and the inner peripheral surface 14b, and is guided to the light guide unit 12 to reach the light emission surface B.
  • incident light incident from any surface is totally reflected on any of the three surfaces and is guided to the light guide unit 12 to reach the light emission surface B.
  • FIG.13 (b) is a perspective view of the collector 1m which concerns on the modification 12 of this invention.
  • the concentrator 1m is a combination of a plurality of concentrators 1l as condensing pieces so that the light guides 12 are bundled (in this case, the connecting portion 19 is connected to the light emitting surface B of the concentrator 1m).
  • the collected light is transmitted to the optical cable 18 by connecting the optical cable 18 via the optical cable 18).
  • FIG.13 (c) is a perspective view of the collector 1n which concerns on the modification 13 of this invention.
  • the concentrator 1n is a combination of the concentrators 1l as the condensing pieces in the vertical direction so that the centers of the light guide portions 12 overlap on the axis R. This can be realized, for example, by providing a connection port 122 in the upper part of the light guide unit 12 and inserting the light guide unit 12 of another condenser.
  • a concentrator with higher design can be provided by combining a plurality of concentrators 1l. It can also be used as an exterior or an object by applying a color or pattern to the surface.
  • FIG. 14A is an exploded perspective view of the condenser 1j
  • FIG. 14B is a cross-sectional view of the condenser 1j.
  • the concentrator 1j has substantially the same configuration as the concentrator 1f of the sixth modification of the present invention, but a mirror surface structure is applied to the outer peripheral surface 14a and the inner peripheral surface 14b of each condensing unit. Is different.
  • Such a concentrator 1j can be manufactured by the following method. First, each condensing part is shape
  • FIG. 15 is an explanatory diagram for explaining the condensing characteristics of such a collector 1j.
  • the condensing characteristic of the linear light (sunlight etc.) with respect to is shown.
  • the light receiving surface A receives the light from the A side, and its light collecting intensity increases so as to draw a circle toward the center (a black portion indicates that the light collecting intensity is high).
  • B part and C part it becomes a substantially elliptical condensing range, and a condensing area becomes narrower than the light-receiving surface which a center collector has.
  • FIG. 16 is a schematic view of the light collection system 2 according to the second embodiment of the present invention.
  • the condensing system 2 is configured to transmit the collected light to the optical cable 18 by connecting the optical cable 18 to the light emitting surface B of the condenser 1j via the connecting portion 19. Is.
  • the light received by the light receiving surface A reaches the optical cable 18 via the light emitting surface B in the connection portion 19.
  • such a condensing system 2 can be applied to many apparatuses. Examples thereof will be described below.
  • FIG. 17 is a schematic diagram of an illuminating device 21 using the light collecting system 2 according to Modification 13 of the second embodiment of the present invention.
  • the condensing system 2 connects one end of the optical cable 18 to the concentrator 1 j to transmit the collected light, and emits light from the lighting fixture 30 provided at the other end of the optical cable 18. It is.
  • the radiating plate 31 in the lighting fixture 30 the emitted light from the optical cable 18 can be diffusely reflected and emitted as scattered light.
  • direct light may be applied to the wall without providing a radiation plate and used as indirect illumination, or may be diffused through a lens.
  • the introduction at the plant factory makes it easier to control the temperature and enables plant cultivation using cleaner sunlight.
  • an illuminating device 21 it is possible to guide the light collected outdoors to the indoors and use it as illumination.
  • a wide range of light can be collected by the condenser, light with sufficient illuminance can be obtained even in cloudy or rainy weather, and an illumination power source and a light bulb are not required.
  • FIG. 18 is a schematic diagram of a solar power generation device 22 using the light collection system 2 according to Modification 14 of the second embodiment of the present invention.
  • the solar power generation device 22 includes a plurality of light collection systems 2, collects the light collected by each light collection system 2 in a solar power generation panel 40 constituted by solar cells, and generates power. Is.
  • the electric power generated by the solar power generation panel 40 is transmitted through the power line 41 and used after being stored in a temporary storage battery or the like.
  • the light from the optical cable 18 may be used as it is for emitting light to the solar power generation panel 40, or may be passed through a lens. Further, if the periphery of the solar power generation panel is covered with a reflector or the like, leakage loss is suppressed and further efficiency can be achieved. Moreover, since the light with high illuminance collected by each condensing unit can be used, the energy of sunlight can be reduced by downsizing the solar power generation panel 40 or using a multi-junction solar cell in which a plurality of solar cells having different utilization wavelengths are stacked. Can be used more efficiently and conversion efficiency can be improved. In addition, it can be managed in a space-saving manner.
  • the condensing system 2 outdoors and the solar power generation panel 40 indoors.
  • the solar power generation panel 40 is used indoors, it is easy to manage and maintain, and its life is also increased.
  • a concentrator installed outdoors has a simple structure and is inexpensive, and is not easily broken, so that the cost required for management and maintenance can be greatly reduced.
  • the collected light is transmitted to the optical cable 18 and used.
  • an element that converts sunlight into electric power may be connected to the end of the condenser and the light emission surface B.
  • utilization of solar heat becomes easy to use, and in addition, sunlight and solar heat may be used in combination.
  • the solar power generation device 22 using such a condensing system 2 a wide range of sunlight is condensed by a concentrator without providing a solar tracking device, and highly efficient power generation is possible with a simple structure. Can be done. Of course, if the center of the concentrator is directed to the sun by the tracking device, it becomes a more efficient concentrator by taking in sunlight and surrounding reflected light.
  • FIG. 19 is a schematic diagram of a solar system 23 using the light collection system 2 according to Modification 15 of the second embodiment of the present invention.
  • the solar system 23 is obtained by replacing the solar power generation panel 40 used for the solar power generation device 22 with a heat exchanger 50, and can obtain hot water through this. In addition to this, it is also possible to generate electricity using the obtained heat, or to simultaneously use sunlight and solar heat.
  • FIG. 20A is a schematic diagram of a solar system 24 using the light collecting system 2 according to Modification 15 of the second embodiment of the present invention.
  • the solar system 24 has a solar cell 43 connected to the light guide portion 12 of the condenser 1j.
  • the power generation device can be managed with less space and without loss of light.
  • a solar power generation panel may be connected instead of the solar battery 43.
  • the energy of sunlight can be used more efficiently, and the similar solar system 24 can be connected to each other with a fastener 42. Stable installation is possible.
  • thermoelectric conversion element 44 may be further added to the lower part of the solar cell.
  • heat from a light collector is collected using an element utilizing the Seebeck effect, and solar heat is used as a high temperature side, and heat radiating fins 45 provided on the outside are used as a low temperature side, and power is generated by a temperature difference.
  • the collector of the present invention can be applied to various types of solar systems using sunlight and heat.
  • the condenser and the condenser system according to the present invention have been described above. According to the concentrator and the condensing system according to the present invention, it is possible to condense sunlight stably and with high efficiency without a sun tracking device. In addition, since not only parallel light but also a wide range of external light from various polygons can be collected, it is possible to collect light having sufficient illuminance even in rainy or cloudy weather.
  • the concentrator and the condensing system according to the present invention are not limited to the above, and many alternatives, modifications, and variations will be apparent to those skilled in the art. Also, the features in the above embodiments and modifications can be used in combination.
  • FIG. 21 is a perspective view of an earpick 25 according to Modification 18 of the present invention.
  • the earpick 25 has a rod-shaped handle portion 61, a light collector 1j formed at one end of the handle portion 61, and a tip portion 62 curved in a hook shape formed at the other end.
  • the handle portion 61 is formed by covering the periphery of a rod-shaped light guide member formed integrally with the distal end portion 62 with a cylindrical member having a mirror surface structure on the inner peripheral surface.
  • the light guide member of the handle 61 is made of a material having translucency and a high refractive index. Therefore, if the handle 61 and the collector 1j are integrally formed, radiation loss is further suppressed. Further, the bottom surface 63 of the tip portion 62 may be formed by using a satin finish or a blast finish, or using a translucent material or a material mixed with a light diffusing agent. As a result, light can be scattered to illuminate the external auditory canal widely.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Photovoltaic Devices (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

La présente invention vise à fournir un condenseur apte à condenser de façon stable une lumière avec une efficacité élevée. Ce condenseur (1) comporte une partie de condensation de lumière (11) ayant une surface annulaire de réception de lumière (A), une surface inverse périphérique externe de forme effilée (14a) et une surface interne périphérique (14b) qui sont approximativement parallèles l'une par rapport à l'autre et ont des diamètres qui s'étendent de façon graduelle vers la surface de réception de lumière (A), et une partie colonnaire de guidage de lumière (12) ayant la surface externe périphérique (14a) qui s'étend vers le côté inverse de la surface de réception de lumière (A).
PCT/JP2012/066897 2011-07-11 2012-07-02 Condenseur, système de condensation de lumière, dispositif de génération d'énergie solaire et système solaire WO2013008665A1 (fr)

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JP2011153379A JP2013020096A (ja) 2011-07-11 2011-07-11 集光器、集光システム、太陽光発電装置、及び、ソーラーシステム
JP2011-153379 2011-07-11

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WO2016047222A1 (fr) * 2014-09-24 2016-03-31 岩崎電気株式会社 Composant de guidage de lumière et dispositif de source de lumière
JP2020024821A (ja) * 2018-08-06 2020-02-13 株式会社東芝 光学素子、照明装置
WO2020139186A1 (fr) * 2018-12-27 2020-07-02 Ilia Katardjiev Système optique de manipulation et de concentration de lumière diffuse

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JP6331846B2 (ja) * 2014-08-01 2018-05-30 オムロン株式会社 光学式センサおよび導光板の設計方法
US20190372519A1 (en) * 2017-02-27 2019-12-05 Bolymedia Holdings Co., Ltd. Energy storage type solar device

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WO2020139186A1 (fr) * 2018-12-27 2020-07-02 Ilia Katardjiev Système optique de manipulation et de concentration de lumière diffuse

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