JP2766030B2 - Solar energy collection device - Google Patents
Solar energy collection deviceInfo
- Publication number
- JP2766030B2 JP2766030B2 JP2065227A JP6522790A JP2766030B2 JP 2766030 B2 JP2766030 B2 JP 2766030B2 JP 2065227 A JP2065227 A JP 2065227A JP 6522790 A JP6522790 A JP 6522790A JP 2766030 B2 JP2766030 B2 JP 2766030B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- solar cell
- heat
- transmitting
- heat absorbing
- 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.)
- Expired - Fee Related
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
-
- 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
- Y02E10/548—Amorphous silicon PV cells
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- Photovoltaic Devices (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は太陽光から電気エネルギーと熱エネルギーと
を同時に収集する太陽エネルギー収集装置に関する。The present invention relates to a solar energy collecting apparatus for simultaneously collecting electric energy and heat energy from sunlight.
（ロ）従来の技術 太陽光から電気エネルギーと熱エネルギーとを同時に
収集するものとして、例えばUSP4,334,120号が存在す
る。ところがこの収集装置によると、太陽エネルギーを
電気エネルギーに変換する太陽電池は高温状態では変換
効率が低いので低温に保つ必要がある一方、太陽エネル
ギーを熱エネルギーに変換する個所に於ては高温状態を
保つ必要があり、相反する要求を同時に満たさなければ
ならない問題点を抱えている。(B) Conventional technology For example, US Pat. No. 4,334,120 exists as a device for simultaneously collecting electric energy and heat energy from sunlight. However, according to this collection device, the solar cells that convert solar energy into electrical energy have a low conversion efficiency in high temperature conditions, so they need to be kept at low temperature. There are problems that need to be maintained and must meet conflicting requirements at the same time.
このような問題点に鑑みて、本特許出願人は平成２年
１月30日付で、電気エネルギーと熱エネルギーとを同時
に効率よく収集する構成を提案した。その新しく提案さ
れた構成は第３図に示すように、太陽光を電気エネルギ
ーに変換する太陽電池20を部分的に有する透明基板21
と、その透明基板21と間隔を置いて設けれられた吸熱板
22と、この吸熱板22と透明基板21との間に設けられた透
光板23と、から構成されていて、太陽電池20で太陽光を
電気エネルギーに変換すると共に、太陽電池20が存在し
ない個所に到来した太陽光は透明基板21、透光板23を経
て吸熱板22に到達した熱エネルギーに変換される。In view of such problems, the present applicant has proposed a configuration for efficiently collecting electric energy and heat energy simultaneously on January 30, 1990. The newly proposed configuration, as shown in FIG. 3, is a transparent substrate 21 partially having a solar cell 20 for converting sunlight into electric energy.
And a heat absorbing plate provided at an interval from the transparent substrate 21
22, and a light transmitting plate 23 provided between the heat absorbing plate 22 and the transparent substrate 21.The solar cell 20 converts sunlight into electric energy, and the solar cell 20 does not exist. The sunlight arriving at the location is converted into thermal energy that reaches the heat absorbing plate 22 via the transparent substrate 21 and the light transmitting plate 23.
（ハ）発明が解決しようとする課題 この新しく提案された構成によれば、電気エネルギー
と熱エネルギーとが同時に得られるものの、電気エネル
ギーの収集に寄与するのは、透明基板21に設けられた太
陽電池に照射される太陽光のみであり、また熱エネルギ
ーの収集に寄与するのは、透明基板21の太陽電池20が存
在しない個所を透過してきた太陽光のみであるので、双
方のエネルギー収集効率としては、電気エネルギー、並
びに熱エネルギー単独で収集する構成のものに比して低
いものであった。(C) Problems to be Solved by the Invention According to the newly proposed configuration, although the electric energy and the heat energy can be obtained at the same time, the solar energy provided on the transparent substrate 21 contributes to the collection of the electric energy. Only the sunlight irradiated to the battery and the one that contributes to the collection of heat energy is only the sunlight that has passed through the transparent substrate 21 where the solar cell 20 does not exist. Was lower than that of the configuration collecting only electric energy and heat energy.
本発明はこの電気、並びに熱エネルギー収集効率の向
上を目的として為されたものである。The present invention has been made to improve the efficiency of collecting electricity and heat energy.
（ニ）課題を解決するための手段 本発明は、透光性基板の裏面に設ける太陽電池に、太
陽光のうち、主として可視光域にて光−電気変換を行
い、赤外光域は透過する特性を持たせている。(D) Means for Solving the Problems According to the present invention, a solar cell provided on the back surface of a translucent substrate performs light-to-electric conversion mainly in the visible light region of sunlight and transmits light in the infrared light region. It has the characteristic to do.
また同時に、太陽電池と光透過性断熱板との間、及び
光透過性断熱板と熱吸収板との間に夫々外部に開放され
たダクトを設けている。At the same time, ducts open to the outside are provided between the solar cell and the light-transmitting heat insulating plate, and between the light-transmitting heat insulating plate and the heat absorbing plate.
（ホ）作用 本発明によれば、太陽光のうち、熱エネルギーは余り
含まれていない可視光域にて光−電気変換が行われ、ま
た光−電気変換に余り寄与しない赤外光域にて光−熱変
換が行われるので、電気、並びに熱エネルギーの双方の
収集効率の向上が図れる。(E) Function According to the present invention, light-to-electricity conversion is performed in the visible light region where heat energy is not included in sunlight, and infrared light region that does not significantly contribute to light-to-electricity conversion. Since light-to-heat conversion is performed, the efficiency of collecting both electricity and heat energy can be improved.
（ヘ）実施例 第１図は本発明太陽エネルギー収集装置の断面図であ
って、１はガラスなどの透光性基板で、その裏面全面に
わたってアモルファスシリコンを主構成要素とする薄膜
状の太陽電池２が設けられている。この太陽電池２は透
光性基板１側から、透明導電膜３、アモルファスシリコ
ン層４、透明導電膜５が順次積層されて構成されてい
る。そしてこのアモルファスシリコン層４は、Ｐ−Ｉ−
Ｎの三層から成っている。６はこの太陽電池１の背面に
該太陽電池２と間隔を置いて設けられた熱吸収板で、そ
の表面には黒色塗料が塗布されている。７はこの熱吸収
板６と透光性基板１との間に配置された光透過性断熱材
で、この光透過性断熱材７は透光性基板１を透過してく
る可視光は通すが、熱吸収板６から到来する赤外線は遮
断して熱吸収板６側に再反射する機能を持っている。そ
してこの光透過性断熱材７と透光性基板１との間で冷却
ダクト８を構成し、また光透過性断熱材７と熱吸収板６
とで吸熱ダクト９を構成しており、これら冷却ダクト８
及び吸熱ダクトは外部に開放されている。そして、冷却
ダクト８には透光性基板１の裏面に設けられた太陽電池
２を冷却する冷却風10が流されており、また吸熱ダクト
９には熱吸収板６にて吸収された熱を熱利用個所に運搬
する加熱風11が流れるよう構成されている。(F) Embodiment FIG. 1 is a cross-sectional view of the solar energy collecting apparatus of the present invention, wherein 1 is a translucent substrate such as glass, and a thin-film solar cell having amorphous silicon as a main component over the entire back surface thereof. 2 are provided. The solar cell 2 is configured by sequentially laminating a transparent conductive film 3, an amorphous silicon layer 4, and a transparent conductive film 5 from the light transmitting substrate 1 side. The amorphous silicon layer 4 has a PI-
It consists of three layers of N. Reference numeral 6 denotes a heat absorbing plate provided on the back surface of the solar cell 1 at a distance from the solar cell 2, and the surface thereof is coated with black paint. Reference numeral 7 denotes a light-transmitting heat insulating material disposed between the heat absorbing plate 6 and the light-transmitting substrate 1. The light-transmitting heat insulating material 7 allows visible light transmitted through the light-transmitting substrate 1 to pass therethrough. It has a function of blocking infrared rays coming from the heat absorbing plate 6 and re-reflecting it toward the heat absorbing plate 6. A cooling duct 8 is formed between the light transmitting heat insulating material 7 and the light transmitting substrate 1, and the light transmitting heat insulating material 7 and the heat absorbing plate 6 are formed.
And the heat absorbing duct 9.
The heat absorbing duct is open to the outside. Cooling air 10 for cooling the solar cell 2 provided on the back surface of the translucent substrate 1 is flowing through the cooling duct 8, and heat absorbed by the heat absorbing plate 6 is passed through the heat absorbing duct 9. The configuration is such that heated air 11 carried to a heat utilization location flows.
ここでこの太陽エネルギー収集装置の具体的な構成に
ついて説明しておく。透光性基板１は厚さ2.0mmの透明
ガラスから成っており、この透光性基板１の裏面の太陽
電池２は、膜厚5000Å程度の透明導電膜３、プラズマ反
応にて形成されたそれぞれ約50Å、3000Å、200Åのア
モルファスシリコンのＰ−Ｉ−Ｎの三層４、膜厚2000Å
の透明導電膜５から構成されている。このように構成さ
れた太陽電池２は、波長0.6μｍ前後の可視光域にピー
ク感度を持つと共に、熱エネルギーを多く含む赤外光域
は殆ど透過する特性を示す。Here, a specific configuration of the solar energy collecting device will be described. The light-transmitting substrate 1 is made of a transparent glass having a thickness of 2.0 mm. The solar cell 2 on the rear surface of the light-transmitting substrate 1 has a transparent conductive film 3 having a film thickness of about 5000 °, and each formed by a plasma reaction. Approximately 50 °, 3000 °, 200 ° amorphous silicon P-I-N three layers 4, film thickness 2000 °
Of the transparent conductive film 5. The solar cell 2 configured as described above has a peak sensitivity in a visible light region having a wavelength of about 0.6 μm, and has a characteristic of almost transmitting an infrared light region containing a large amount of heat energy.
この太陽電池２を有する透光性基板１と光透過性断熱
材７との間の冷却ダクト８の間隔は30mm、また光透過性
断熱材７と熱吸収板６との間隔は30mmに設定されてい
る。尚、この光透過性断熱材７は、ガラス、或いはアク
リル、透明塩化ビニールポリカーボネイト、PET等のプ
ラスチック板、もしくはそれらの複合材にて構成されて
いる。The space between the cooling duct 8 between the light-transmitting substrate 1 having the solar cell 2 and the light-transmitting heat insulating material 7 is set to 30 mm, and the space between the light-transmitting heat insulating material 7 and the heat absorbing plate 6 is set to 30 mm. ing. The light-transmitting heat insulating material 7 is made of glass, a plastic plate of acrylic, transparent vinyl chloride polycarbonate, PET or the like, or a composite material thereof.
而して斯る構成の太陽エネルギー収集装置を家屋の屋
根などに配置し、太陽光の照射を受けると、太陽光のう
ち、熱エネルギーを余り含まない可視光域は太陽電池２
にて光−電気変換され、その太陽電池２から電気エネル
ギーとして取り出され、一方、太陽電池２にて光−電気
変換に寄与しなかった熱エネルギーを多く含む赤外光域
はこの太陽電池２を透過し、冷却ダクト８、光透過性断
熱材７、吸熱ダクト９を経て熱吸収板６に達し、光−熱
変換され、この熱吸収板６近傍の吸熱ダクト９内を流れ
る加熱風11を加熱して暖房機器や吸収式冷却機器などの
熱利用個所に熱運搬される。そして冷却ダクト８には図
示しないファンなどから冷却風10が強制的に送り込まれ
ており、その冷却風10によって太陽電池２は背面から冷
却されている。Thus, when the solar energy collecting device having such a configuration is arranged on a roof of a house or the like and is irradiated with sunlight, the visible light region of the sunlight that does not contain much heat energy is the solar cell 2.
Are converted into electric energy by the photovoltaic cell 2, and are extracted as electric energy from the solar cell 2. On the other hand, an infrared light region including a large amount of heat energy that has not The heat passes through the cooling duct 8, the light-transmitting heat insulating material 7, and the heat absorbing duct 9, reaches the heat absorbing plate 6, undergoes light-to-heat conversion, and heats the heated air 11 flowing in the heat absorbing duct 9 near the heat absorbing plate 6. Then, heat is transported to a heat utilization point such as a heating device or an absorption cooling device. Cooling air 10 is forcibly sent into the cooling duct 8 from a fan (not shown) or the like, and the solar cell 2 is cooled from the back by the cooling air 10.
一方、熱吸収板６の表面は黒色塗料が塗布されている
ので太陽光の照射を受けると赤外線を吸熱ダクト９側に
発射するが、その赤外線は光透過性断熱材７に到達する
と冷却ダクト８側には透過せず、再度吸熱ダクト９側に
反射し、太陽電池２が熱吸収板６からの赤外線によって
加熱されることはない。従って光−熱変換に於ては熱が
吸熱ダクト９外に赤外線の形で出てしまう確率は少なく
なり、光−熱変換効率の低下は防止されると共に、光−
電気変換に於ては太陽電池２の加熱が抑えられるので、
光−電気変換効率も低下することもない。On the other hand, since the surface of the heat absorbing plate 6 is coated with black paint, it receives infrared rays and emits infrared rays to the heat absorbing duct 9 side. The solar cell 2 is not transmitted by the heat absorbing plate 6 and is reflected by the heat absorbing duct 9 again. Therefore, in the light-to-heat conversion, the probability that heat is emitted out of the heat-absorbing duct 9 in the form of infrared rays is reduced, and a decrease in light-to-heat conversion efficiency is prevented.
Since the heating of the solar cell 2 is suppressed in the electric conversion,
The light-to-electric conversion efficiency does not decrease.
尚、光−熱エネルギー変換効率を向上させるために、
第２図に示すように冷却ダクト８を流れて太陽電池２を
冷却した冷却風10を外部に排気せず、吸熱ダクト９に導
いて加熱風11とする方法も考えられる。斯る構成を採る
ことによって、太陽電池２を冷却することによって僅か
ではあるが予熱された冷却風10が吸熱ダクト９内で更に
加熱されるので、予熱を受けない風を導入するより、吸
熱ダクト９から得られる加熱風11の温度を高めることが
できる。Incidentally, in order to improve the light-heat energy conversion efficiency,
As shown in FIG. 2, a method is also conceivable in which the cooling air 10 flowing through the cooling duct 8 and cooling the solar cell 2 is not exhausted to the outside, but is led to the heat absorbing duct 9 to generate the heated air 11. By adopting such a configuration, the cooling air 10 slightly preheated by cooling the solar cell 2 is further heated in the heat absorbing duct 9, and therefore, the heat absorbing duct is not used. The temperature of the heated air 11 obtained from 9 can be increased.
また吸熱板６、及び光透過性断熱材７に於ける断熱効
果を高めて熱損失を極力低減する方法として、これらの
吸熱板６、及び光透過性断熱材７を真空層を持つ板材に
て構成せしめることも考えられる。As a method of increasing the heat insulating effect of the heat absorbing plate 6 and the light transmitting heat insulating material 7 to reduce the heat loss as much as possible, the heat absorbing plate 6 and the light transmitting heat insulating material 7 are made of a plate material having a vacuum layer. It is also conceivable to configure it.
（ト）発明の効果 本発明は以上の説明から明らかなように、透過性基板
の裏面に設ける太陽電池に、太陽光のうち、主として可
視光域にて光−電気変換を行い、赤外光域は透過する特
性を持たせていると共に、太陽電池と光透過性断熱板と
の間、及び光透過性断熱板と熱吸収板との間に夫々外部
に開放された冷却ダクト及び吸熱ダクトを設けているの
で、太陽光のうち、熱エネルギーは余り含まれていない
可視光域にて光−電気変換が行われ、また光−電気変換
に余り寄与しない赤外光域にて光−熱変換が行われ、そ
の結果、電気、並びに熱エネルギーの双方の収集効率を
向上せしめることができる。(G) Advantages of the Invention As is clear from the above description, the present invention provides a solar cell provided on the back surface of a transparent substrate to perform light-to-electric conversion mainly in the visible light range of sunlight, The area has the property of transmitting light, and the cooling duct and heat absorbing duct opened to the outside between the solar cell and the light transmitting heat insulating plate and between the light transmitting heat insulating plate and the heat absorbing plate, respectively. Because of this, light-to-electric conversion is performed in the visible light region where heat energy is not included much in sunlight, and light-to-heat conversion is performed in the infrared light region that does not significantly contribute to light-to-electric conversion. As a result, the collection efficiency of both electricity and heat energy can be improved.
第１図は本発明太陽エネルギー収集装置の断面図、第２
図は本発明の収集効率の向上を更に図った他の実施例の
断面図、第３図は従来装置の断面図である。 １……透光性基板、２……太陽電池、 ６……熱吸収板、７……光透過性断熱材、 ８……冷却ダクト、９……吸熱ダクト。FIG. 1 is a sectional view of the solar energy collecting apparatus of the present invention, and FIG.
FIG. 3 is a cross-sectional view of another embodiment of the present invention in which the collection efficiency is further improved, and FIG. 3 is a cross-sectional view of a conventional apparatus. DESCRIPTION OF SYMBOLS 1 ... Translucent board, 2 ... Solar cell, 6 ... Heat absorbing plate, 7 ... Light transmissive heat insulating material, 8 ... Cooling duct, 9 ... Heat absorbing duct.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−160175（ＪＰ，Ａ) 特開 昭58−96948（ＪＰ，Ａ) 特開 昭60−60777（ＪＰ，Ａ) 特開 昭60−70777（ＪＰ，Ａ) 実開 昭59−172951（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01L 31/04 F24J 2/00────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-57-160175 (JP, A) JP-A-58-96948 (JP, A) JP-A-60-60777 (JP, A) JP-A-60-160 70777 (JP, A) Actually open sho 59-172951 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) H01L 31/04 F24J 2/00
Claims (2)
と発電する太陽電池を設けると共に、この太陽電池の背
面に該太陽電池と間隔を置いて熱吸収板を配置し、この
熱吸収板と太陽電池との間に光透過性断熱板を介在させ
た太陽エネルギー収集装置において、 上記太陽電池は、太陽光のうち、主として可視光域にて
光−電気変換が行われ、赤外光域は透過する特性を持つ
と共に、 前記太陽電池と光透過性断熱板との間、及び光透過性断
熱板と熱吸収板との間に夫々外部に開放されたダクトを
設けたことを特徴とした太陽エネルギー収集装置。A solar cell is provided on the rear surface of a light-transmitting substrate for generating electricity when irradiated with sunlight, and a heat absorbing plate is arranged on the rear surface of the solar cell at a distance from the solar cell. In a solar energy collection device in which a light-transmitting heat insulating plate is interposed between an absorption plate and a solar cell, the solar cell performs light-to-electric conversion mainly in a visible light region of sunlight, and emits infrared light. The light region has a property of transmitting light, and ducts opened to the outside are provided between the solar cell and the light-transmitting heat insulating plate and between the light-transmitting heat insulating plate and the heat absorbing plate, respectively. Solar energy collection device.
ァスシリコンからなるＰ−Ｉ−Ｎ層と、透明導電膜と、
から構成されていることを特徴とした請求項（１）記載
の太陽エネルギー収集装置。2. The solar cell according to claim 1, wherein the transparent conductive film, a PIN layer made of amorphous silicon, a transparent conductive film,
The solar energy collecting device according to claim 1, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2065227A JP2766030B2 (en) | 1990-03-15 | 1990-03-15 | Solar energy collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2065227A JP2766030B2 (en) | 1990-03-15 | 1990-03-15 | Solar energy collection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03266477A JPH03266477A (en) | 1991-11-27 |
| JP2766030B2 true JP2766030B2 (en) | 1998-06-18 |
Family
ID=13280823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2065227A Expired - Fee Related JP2766030B2 (en) | 1990-03-15 | 1990-03-15 | Solar energy collection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2766030B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6018123A (en) * | 1996-01-31 | 2000-01-25 | Canon Kabushiki Kaisha | Heat collector with solar cell and passive solar apparatus |
| AT409199B (en) * | 1999-03-25 | 2002-06-25 | Hectec Beteiligungsgesellschaf | Device for generating heat and power from solar energy |
| JP5350744B2 (en) * | 2008-10-20 | 2013-11-27 | ミサワホーム株式会社 | Solar power collection system |
-
1990
- 1990-03-15 JP JP2065227A patent/JP2766030B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03266477A (en) | 1991-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |