JP2003056455A - Solar power generating device and reflecting mirror used therefor - Google Patents
Solar power generating device and reflecting mirror used thereforInfo
- Publication number
- JP2003056455A JP2003056455A JP2001243048A JP2001243048A JP2003056455A JP 2003056455 A JP2003056455 A JP 2003056455A JP 2001243048 A JP2001243048 A JP 2001243048A JP 2001243048 A JP2001243048 A JP 2001243048A JP 2003056455 A JP2003056455 A JP 2003056455A
- Authority
- JP
- Japan
- Prior art keywords
- reflecting mirror
- solar power
- reflecting
- power generation
- generating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- 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
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、太陽発電装置及び
これに用いる反射鏡に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar power generation device and a reflector used for the same.
【０００２】[0002]
【従来の技術】太陽電池の受光部には、単結晶・多結晶
・アモルファスのシリコンや化合物を材料にしたものが
用いられる。従来の太陽電池においては、受光面は平面
形状を有し、表面で太陽光を受ける構造となっている。2. Description of the Related Art For a light receiving portion of a solar cell, a material made of single crystal / polycrystal / amorphous silicon or a compound is used. In the conventional solar cell, the light-receiving surface has a planar shape and the surface receives sunlight.
【０００３】[0003]
【発明が解決しようとする課題】上記のような従来の太
陽電池において、発電量を増加させるためには受光面の
表面積を増やす必要がある。このため、当該装置を設置
するための広い面積と、高価な太陽電池が多数必要とな
る。In the conventional solar cell as described above, it is necessary to increase the surface area of the light receiving surface in order to increase the amount of power generation. Therefore, a large area for installing the device and a large number of expensive solar cells are required.
【０００４】また、従来の発電装置では、反射光の集光
効率が低く、日陰や曇りの日には発電量（受光エネルギ
ー量）が極端に小さくなるという問題がある。Further, the conventional power generator has a problem that the efficiency of collecting reflected light is low and the amount of power generation (amount of received energy) is extremely small on a shaded or cloudy day.
【０００５】本発明は上記のような状況に鑑みて成され
たものであり、小さな太陽電池素子でも高効率の電気変
換を可能とする太陽光発電装置を提供することを目的と
する。The present invention has been made in view of the above situation, and an object of the present invention is to provide a photovoltaic power generation device capable of highly efficient electrical conversion even with a small solar cell element.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明においては、放物曲面を有する反射鏡を複数
集め、反射鏡の各々の焦点位置に、光を電気エネルギー
に変換する太陽電池素子を設けている。また、好ましく
は、反射鏡の反射面に熱線透過膜を設ける。In order to achieve the above object, in the present invention, a plurality of reflecting mirrors having a parabolic curved surface are gathered, and a solar for converting light into electric energy is provided at each focal position of the reflecting mirrors. A battery element is provided. Further, preferably, a heat ray transmitting film is provided on the reflecting surface of the reflecting mirror.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施例について、
添付図面を参照して説明する。図１は、放物曲面を持つ
反射鏡１２と太陽電池素子１４とから構成される反射鏡
ユニット１０の拡大断面図である。本実施例の反射鏡ユ
ニット１０においては、太陽電池素子１４は光エネルギ
ーを電気に変換する素子であり、放物曲面の反射面の焦
点位置に配置されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
Description will be given with reference to the accompanying drawings. FIG. 1 is an enlarged cross-sectional view of a reflecting mirror unit 10 including a reflecting mirror 12 having a parabolic curved surface and a solar cell element 14. In the reflecting mirror unit 10 of the present embodiment, the solar cell element 14 is an element that converts light energy into electricity and is arranged at the focal position of the reflecting surface of the parabolic curved surface.
【０００８】反射鏡１２の反射面（内面）には熱線透過
膜２０が設けられている。熱線透過膜２０は、太陽光の
熱成分を透過するようになっている。すなわち、反射鏡
１２の反射面（２０）においては、光（可視光）のみを
反射して、太陽電池素子１４に導く（集光する）ように
なっている。熱線透過膜２０を透過した光は、耐熱硝子
又は結晶化硝子からなる反射鏡本体を透過し、後側に抜
け出るようになっている。これによって焦点位置に設置
された太陽電池素子１４は発電に有効な光だけを素子の
全周囲で受け、熱は受けないことになる。A heat ray transmitting film 20 is provided on the reflecting surface (inner surface) of the reflecting mirror 12. The heat ray transmitting film 20 is configured to transmit the heat component of sunlight. That is, on the reflecting surface (20) of the reflecting mirror 12, only light (visible light) is reflected and guided (collected) to the solar cell element 14. The light transmitted through the heat ray transmissive film 20 is transmitted through the reflecting mirror body made of heat-resistant glass or crystallized glass, and escapes to the rear side. As a result, the solar cell element 14 installed at the focal point receives only the light effective for power generation all around the element and does not receive heat.
【０００９】太陽電池素子１４の後側端部には、リード
線１６が接続されている。リード線１６は、反射鏡１２
の底部に形成された孔を貫通するようになっている。な
お、リード線１６用の孔は固定材１８でシールされてい
る。A lead wire 16 is connected to the rear end of the solar cell element 14. The lead wire 16 is the reflection mirror 12.
Through the hole formed at the bottom of the. The hole for the lead wire 16 is sealed with a fixing material 18.
【００１０】図２は、図１に示した反射鏡ユニット１０
を１００個組み込んで構成される受光ユニット３０の概
略構成を示す。受光ユニット３０は、耐熱ガラスまたは
結晶化ガラスをプレス成型することによって、一体成形
される。FIG. 2 shows the reflecting mirror unit 10 shown in FIG.
1 shows a schematic configuration of a light receiving unit 30 configured by incorporating 100 pieces. The light receiving unit 30 is integrally molded by press molding heat resistant glass or crystallized glass.
【００１１】太陽電池素子1４の大きさは、例えば、数
ミリ程度とする。この時、反射鏡１２の口径は、例え
ば、１０ミリ〜数十ミリ程度とする。なお、太陽電池素
子１４の大きさを１ミリ以下とした場合には、これに対
応して、反射鏡１２口径を数ミリ程度にすることが好ま
しい。The size of the solar cell element 14 is, for example, about several millimeters. At this time, the aperture of the reflecting mirror 12 is, eg, about 10 mm to several tens of mm. In addition, when the size of the solar cell element 14 is set to 1 mm or less, it is preferable that the diameter of the reflecting mirror 12 be set to about several millimeters correspondingly.
【００１２】なお、本装置が発電能力を充分維持し続け
るためには、反射鏡１２が常に太陽に直面するように太
陽追跡装置（図示せず）と連動させることが望ましい。In order to maintain the power generation capacity of the present apparatus sufficiently, it is desirable to interlock with a sun tracking device (not shown) so that the reflecting mirror 12 always faces the sun.
【００１３】以上、本発明の実施の形態について説明し
たが、本発明はこれに限定されるものではなく、特許請
求の範囲に示された技術的思想の範囲内で適宜設計変更
可能であることは言うまでもない。Although the embodiment of the present invention has been described above, the present invention is not limited to this, and the design can be appropriately changed within the scope of the technical idea shown in the claims. Needless to say.
【００１４】[0014]
【発明の効果】以上説明したように、本発明において
は、反射鏡１２の集光により太陽電池素子１４がその全
周囲から垂直に高エネルギーの光を受けることで素子の
表面反射ロスが減少し、高い効率で電気への変換を行な
う事が可能となる。また、日陰や曇りであっても、放物
曲面を有する反射鏡１２の集光によって素子１４の受け
る光エネルギー量が多くなり、従来以上の発電が可能と
なる。更に、太陽電池素子１４及び反射鏡１２自体の温
度上昇が抑制されるため、過熱を防止するためのシリコ
ン等の高価な材料の使用量を大幅に削減することが可能
となる。As described above, in the present invention, the solar cell element 14 receives high-energy light vertically from the entire periphery of the solar cell element 14 due to the condensing of the reflecting mirror 12, thereby reducing the surface reflection loss of the element. , It becomes possible to perform conversion to electricity with high efficiency. Further, even in the shade or cloudy weather, the amount of light energy received by the element 14 increases due to the converging of the reflecting mirror 12 having a parabolic curved surface, and power generation more than conventional can be performed. Further, since the temperature rises of the solar cell element 14 and the reflecting mirror 12 themselves are suppressed, it is possible to significantly reduce the amount of use of expensive materials such as silicon for preventing overheating.
【図１】図１は、断面図本発明の実施例にかかる反射鏡
ユニットの構造を示す拡大断面図である。FIG. 1 is an enlarged sectional view showing a structure of a reflecting mirror unit according to an embodiment of the present invention.
【図２】図２は、図１に示す反射鏡ユニットを用いた受
光ユニットの概略構成を示す斜視図である。FIG. 2 is a perspective view showing a schematic configuration of a light receiving unit using the reflecting mirror unit shown in FIG.
Claims (4)
反射鏡の各々の焦点位置に、光を電気エネルギーに変換
する太陽電池素子を設けたことを特徴とする太陽光発電
装置。1. A solar power generation device comprising a plurality of reflecting mirrors each having a parabolic curved surface; and a solar cell element for converting light into electric energy provided at each focal position of the reflecting mirrors.
ことを特徴とする請求項1記載の太陽光発電装置。2. The solar power generation device according to claim 1, wherein a heat ray transmitting film is provided on a reflecting surface of the reflecting mirror.
多数の微小平面を設けたことを特徴とする請求項１又は
２に記載の太陽光発電装置。3. The solar power generation device according to claim 1, wherein the reflecting mirror is provided with a curved surface other than a parabolic curved surface or a large number of minute flat surfaces.
り、 放物曲面状に成形された反射面と；前記反射面上に設け
られた熱線透過膜とを備えたことを特徴とする反射鏡。4. A reflection mirror used in a solar power generation device, comprising: a reflection surface formed into a parabolic curved surface; and a heat ray transmitting film provided on the reflection surface. mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001243048A JP2003056455A (en) | 2001-08-10 | 2001-08-10 | Solar power generating device and reflecting mirror used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001243048A JP2003056455A (en) | 2001-08-10 | 2001-08-10 | Solar power generating device and reflecting mirror used therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003056455A true JP2003056455A (en) | 2003-02-26 |
Family
ID=19073217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001243048A Pending JP2003056455A (en) | 2001-08-10 | 2001-08-10 | Solar power generating device and reflecting mirror used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003056455A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006019670A (en) * | 2004-07-03 | 2006-01-19 | Yasuhisa Tanaka | Light collector for solar cell |
| WO2011014688A2 (en) * | 2009-07-30 | 2011-02-03 | The Regents Of The University Of California | Solar concentrator for use with a bi-facial cell |
| JP2011521289A (en) * | 2008-05-14 | 2011-07-21 | スリーエム イノベイティブ プロパティズ カンパニー | Sunlight collecting mirror |
| JP2015504575A (en) * | 2011-11-15 | 2015-02-12 | サンフラワー コーポレーション | Photovoltaic concentrator |
| US9523516B2 (en) | 2008-12-30 | 2016-12-20 | 3M Innovative Properties Company | Broadband reflectors, concentrated solar power systems, and methods of using the same |
-
2001
- 2001-08-10 JP JP2001243048A patent/JP2003056455A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006019670A (en) * | 2004-07-03 | 2006-01-19 | Yasuhisa Tanaka | Light collector for solar cell |
| JP2011521289A (en) * | 2008-05-14 | 2011-07-21 | スリーエム イノベイティブ プロパティズ カンパニー | Sunlight collecting mirror |
| US9523516B2 (en) | 2008-12-30 | 2016-12-20 | 3M Innovative Properties Company | Broadband reflectors, concentrated solar power systems, and methods of using the same |
| WO2011014688A2 (en) * | 2009-07-30 | 2011-02-03 | The Regents Of The University Of California | Solar concentrator for use with a bi-facial cell |
| WO2011014688A3 (en) * | 2009-07-30 | 2011-05-19 | The Regents Of The University Of California | Solar concentrator for use with a bi-facial cell |
| JP2015504575A (en) * | 2011-11-15 | 2015-02-12 | サンフラワー コーポレーション | Photovoltaic concentrator |
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Legal Events
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Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20061026 |
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