JPH10227102A - Glass for solar cell roof - Google Patents
Glass for solar cell roofInfo
- Publication number
- JPH10227102A JPH10227102A JP9029403A JP2940397A JPH10227102A JP H10227102 A JPH10227102 A JP H10227102A JP 9029403 A JP9029403 A JP 9029403A JP 2940397 A JP2940397 A JP 2940397A JP H10227102 A JPH10227102 A JP H10227102A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- solar cell
- colored
- solar cells
- roof
- 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.)
- Withdrawn
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
- 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]
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、特に太陽電池屋根
用ガラスに関する。The present invention relates to glass for solar cell roofs.
【０００２】[0002]
【従来の技術】建築物の屋根は、粘土瓦、スレート、新
生瓦および金属屋根材が汎用屋根材として一般に使われ
ている。そして、採光を目的とした用途としてガラス瓦
も知られている。しかし、前記の汎用屋根材では、破
損、風化、腐食などの問題があり、建築物の寿命と同等
まで耐久するのは困難といわれている。また、今後太陽
電池を載せた屋根の普及または増加が予想されるが、太
陽電池の外部は通常透明性の高いガラスでカバーされる
ので、外観的には太陽電池自体の色がそのまま映りかつ
反射特性も違うことから、従来の屋根材では、意匠およ
び質感などの相違により一体感をだすのが難しい。ガラ
ス屋根材として例えば特公平３−３３７があるが、これ
までのものは、採光が目的で７０％を超える可視光線透
過率を有する無色透明のガラス瓦であるため、同様に違
和感がある。2. Description of the Related Art For roofs of buildings, clay tiles, slate, new-generation tiles and metal roofing materials are generally used as general-purpose roofing materials. Glass tiles are also known as applications for daylighting. However, the above-mentioned general-purpose roofing materials have problems such as breakage, weathering, and corrosion, and it is said that it is difficult to endure the same to the life of a building. It is expected that the roof with solar cells will spread or increase in the future, but since the outside of the solar cells is usually covered with highly transparent glass, the color of the solar cells themselves is reflected and reflected in appearance. Because of the different characteristics, it is difficult for conventional roofing materials to achieve a sense of unity due to differences in design and texture. As a glass roofing material, for example, there is Japanese Patent Publication No. 3-337. However, since it is a colorless and transparent glass tile having a visible light transmittance of more than 70% for daylighting, there is also a sense of incongruity.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、従来の屋根
材の有する前記問題の解決を目的としてなされたもの
で、具体的にはその一部に太陽電池を組み込んだ従来の
屋根における、太陽電池部分と太陽電池以外の部分との
不調和を解消または改善すること、および太陽電池以外
の部分の屋根材として耐久性がありかつ安全なガラス屋
根材を提供することを課題とする。SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems of the conventional roofing material. More specifically, the present invention relates to a conventional roof having a solar cell incorporated in a part thereof. It is an object to eliminate or improve disharmony between a battery portion and a portion other than a solar cell, and to provide a durable and safe glass roofing material as a roofing material for a portion other than a solar cell.
【０００４】[0004]
【課題を解決するための手段】本発明は、太陽電池以外
の部分の屋根材として、可視光線透過率が５〜７０％の
着色ガラスからなり、その表面が反射防止性を有する屋
根用ガラスを提供する。本発明はまた上記着色ガラスと
して強化ガラス、網入りガラス、線入りガラスおよび合
わせガラス等の安全ガラスを用いる屋根用ガラスを提供
する。According to the present invention, there is provided a roof glass having a visible light transmittance of 5 to 70% and having a surface having an antireflection property, as a roof material other than a solar cell. provide. The present invention also provides a glass for roof using a safety glass such as a tempered glass, a netted glass, a lined glass and a laminated glass as the colored glass.
【０００５】[0005]
【発明の実施の形態】本発明において着色ガラスとして
は、可視光線透過率が５〜７０％、好ましくは１０〜５
０％の着色ガラスが用いられる。着色ガラスであること
は、太陽電池部分との色的調和を図るうえで重要であ
る。太陽電池部分の屋根は、太陽電池固有の例えばグレ
ー系またはブルー系暗色であるので、該太陽電池部分と
共用する着色ガラスはこの太陽電池の色調にできるだけ
近いことが望ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS The colored glass used in the present invention has a visible light transmittance of 5 to 70%, preferably 10 to 5%.
0% colored glass is used. Being a colored glass is important in achieving color harmony with the solar cell part. Since the roof of the solar cell part has a dark color unique to the solar cell, for example, gray or blue, it is desirable that the colored glass shared with the solar cell part be as close as possible to the color tone of the solar cell.
【０００６】この着色ガラスを得るには、ガラス自体を
着色する方法と、透明ガラスの表面に着色層を表面処理
により形成する方法がある。前者の代表的なものとして
は、濃色のグレーガラス、グリーンガラス、ブラウンガ
ラス、ブロンズガラスなどの建築用色ガラスが挙げら
れ、これらのうちから太陽電池部分の色調に合わせて選
択すればよい。そして、太陽電池部分と違和感が少ない
ように調和させるには、可視光線透過率と反射特性をを
加味して選択調整する。In order to obtain the colored glass, there are a method of coloring the glass itself and a method of forming a colored layer on the surface of the transparent glass by surface treatment. Representative examples of the former include architectural color glasses such as dark gray glass, green glass, brown glass, and bronze glass, and any of these may be selected according to the color tone of the solar cell portion. Then, in order to harmonize the solar cell with the solar cell part so as not to cause any unpleasant sensation, the selection is adjusted in consideration of the visible light transmittance and the reflection characteristics.
【０００７】一方、後者は、金属もしくは金属酸化物の
単独またはこれらの組み合わせからなる着色被膜、また
は無機系塗料の着色被膜を、普通の透明ガラスの表面に
形成して、所望の色調と可視光線透過率を得る。このよ
うな着色被膜は、色調を太陽電池部分に容易に合わせう
る利点がある。なお、前記透明ガラスとしては通常無色
の透明ガラスを用いるが、淡色の透明ガラスを用いても
よい。On the other hand, in the latter, a colored film composed of a metal or a metal oxide alone or a combination thereof, or a colored film of an inorganic paint is formed on the surface of ordinary transparent glass to obtain a desired color tone and visible light. Obtain the transmittance. Such a colored coating has an advantage that the color tone can be easily adjusted to the solar cell portion. In addition, although a colorless transparent glass is usually used as the transparent glass, a light-colored transparent glass may be used.
【０００８】さらに、太陽電池部分の外観が模様を呈し
ている場合には、この模様に近似する所望の模様を着色
被膜により形成できる。太陽電池部分の屋根は、複数枚
の太陽電池パネルから構成されており、各パネルは一つ
の基板に複数の単位太陽電池が並列して配置されている
ので、屋根に取り付け施工したとき、通常その外観はこ
れらの配列模様を有する。そこで、表面処理で着色ガラ
スを得る際に、この模様と同一または類似する近似の模
様を被膜で形成しようとするものである。この場合、可
視光線透過率は、模様のため位置によって若干異なるの
で、パネル全体の平均値として取り扱う。Further, when the appearance of the solar cell portion has a pattern, a desired pattern similar to the pattern can be formed by the colored coating. The roof of the solar cell part is composed of a plurality of solar cell panels, and each panel has a plurality of unit solar cells arranged in parallel on a single board. The appearance has these arrangement patterns. Therefore, when obtaining colored glass by surface treatment, an attempt is made to form a similar or similar pattern similar to this pattern with a coating film. In this case, the visible light transmittance varies slightly depending on the position due to the pattern, and is therefore treated as an average value of the entire panel.
【０００９】上記可視光線透過率の限定は、太陽電池部
分との調和に自由度を持たせることに意味がある。可視
光線透過率が７０％を超えると、通常の無色透明ガラス
に近くなるために、太陽電池部分に調和させ違和感の少
ない一体性を得ることが困難となる。The limitation of the visible light transmittance has a significance in giving a degree of freedom in harmony with a solar cell portion. If the visible light transmittance exceeds 70%, it becomes close to ordinary colorless and transparent glass, so that it is difficult to harmonize with the solar cell portion and obtain an integral structure with little uncomfortable feeling.
【００１０】一方、可視光線透過率が５％より小さい
と、ほとんど黒色または暗色になるため、同様に太陽電
池部分に調和させる調整機能が得られなくなるうえ、逆
に違和感を増長させるように働く。かかる理由により、
可視光線透過率の範囲は５〜７０％が適当であり、実用
化されている太陽電池部分の色調を考えると、１０〜５
０％の範囲がより好ましい。On the other hand, if the visible light transmittance is less than 5%, the color becomes almost black or dark, so that an adjustment function for matching the solar cell portion cannot be obtained, and conversely, it works to increase the sense of discomfort. For this reason,
The range of the visible light transmittance is suitably from 5 to 70%, and considering the color tone of the solar cell part which is put into practical use, it is from 10 to 5%.
A range of 0% is more preferable.
【００１１】また、本発明においてこれら着色ガラス
は、生板のままで使用することもあるが、通常は安全性
の面から安全ガラスの形態で用いる。この安全ガラスと
しては、強化ガラス、網入りガラス、線入りガラス、合
わせガラスなどがある。なかでも強化ガラスが安全性お
よびコスト面で好ましい。In the present invention, these colored glasses may be used as they are, but are usually used in the form of safety glass from the viewpoint of safety. Examples of the safety glass include tempered glass, netted glass, lined glass, and laminated glass. Among them, tempered glass is preferred in terms of safety and cost.
【００１２】さらに、本発明の屋根用ガラスは反射防止
性の表面を有している。ガラスの表面性状は、太陽電池
部分との一体的な調和を図るのに有効な要素である。特
に、太陽光線を受ける状態においては、屋根用ガラスの
表面が鏡面となって反射が生じるため、屋根用ガラスの
反射率を太陽電池部分部分の反射率と同等かそれ以下に
する。Further, the roof glass of the present invention has an antireflective surface. The surface properties of the glass are effective elements for achieving integrated harmony with the solar cell portion. In particular, in a state where sunlight is received, the surface of the roof glass becomes a mirror surface and reflection occurs, so that the reflectance of the roof glass is equal to or less than the reflectance of the solar cell part.
【００１３】このガラスの反射防止手段としては、一般
に知られている表面の粗面化または反射防止膜などの方
法が適宜使用できる。しかし、建築材料として低コスト
で製造する必要があることから、通常は次のようなガラ
ス表面を機械的または化学的に加工または処理して粗面
にする方法が採用される。As the antireflection means for the glass, generally known methods such as surface roughening or an antireflection film can be appropriately used. However, since it is necessary to manufacture a building material at low cost, the following method of mechanically or chemically processing or treating a glass surface to make it rough is usually employed.
【００１４】機械的に行う方法は、ガラスの成形と同時
にその表面に微細な凹凸を形成したり、ガラスの表面を
研磨またはサンドブラストして所望の凹凸を付与し、そ
の散乱効果により反射を軽減するものである。一方、化
学的な方法はエッチングであり、前記の機械的方法で粗
面加工した後に行ってもよい。これらの反射防止はガラ
スの片面のみに行うほか両面に対し行うこともできる。
また、反射防止とは関係なく雨水の流れを良くするため
に、ガラスの外表面に縦方向の筋状溝を設けてもよい。The mechanical method is to form fine irregularities on the surface of the glass at the same time as the glass is formed, or to grind or sandblast the surface of the glass to give desired irregularities, and reduce the reflection by its scattering effect. Things. On the other hand, the chemical method is etching, and may be performed after roughening the surface by the mechanical method described above. The antireflection can be performed only on one side of the glass or on both sides.
Further, in order to improve the flow of rainwater irrespective of antireflection, a vertical streak groove may be provided on the outer surface of the glass.
【００１５】[0015]
例１ ロールアウト法成形装置の下段成形ロールに、サンドブ
ラストにより微細な凹凸の彫刻を施したロールを使用
し、着色ガラス素地をロールプレス成形して、可視光線
透過率が２０％、表面に約１２０μｍの凹凸を有する着
色ガラスを得た。このガラスは外観はグレー色であり、
また表面の反射は前記の凹凸による散乱効果により軽微
なものであり、太陽電池屋根の太陽電池以外の部分に使
用したところ、太陽電池部分と調和し美観の優れてい
た。Example 1 A roll formed by engraving fine irregularities by sandblasting is used as a lower forming roll of a roll-out method forming apparatus, and a colored glass substrate is roll-press-formed to have a visible light transmittance of 20% and a surface of about 120 μm. A colored glass having irregularities was obtained. This glass is gray in appearance,
The reflection on the surface was slight due to the scattering effect due to the unevenness described above, and when used on a portion of the solar cell roof other than the solar cell, the solar cell portion was in harmony with the aesthetic appearance.
【００１６】例２ フロート法で成形された着色グレーガラスを、磨き板工
程で粗摺り研磨を行った後、その研磨面を簡単にポリッ
シャで艶出し研磨した。この着色ガラスの可視光線透過
率は２０％で、表面には１〜５μｍの凹凸を有する摺り
ガラスが得られた。この着色ガラスを例１と同様に太陽
電池屋根の一部に組み込んで使用したところ、太陽電池
部分と一体感のある外観が得られた。Example 2 After the colored gray glass formed by the float method was rubbed and polished in the polishing plate process, the polished surface was polished and polished with a polisher. This colored glass had a visible light transmittance of 20%, and a ground glass having irregularities of 1 to 5 μm on the surface was obtained. When this colored glass was used by incorporating it into a part of a solar cell roof in the same manner as in Example 1, an appearance having a sense of unity with the solar cell part was obtained.
【００１７】例３ フロート法で成形した例２の着色ガラスをサンドブラス
ト処理し、表面にザラザラの凹凸をつけた後、ガラス周
辺に液溜め壁を設け、その表面に弗硫酸溶液を流しガラ
スを揺動させながら２分間保持しエッチングした。エッ
チングされた着色ガラスは可視光線透過率が１８％、表
面の凹凸は約１００μｍであったが、落ち着いた反射特
性を有し、太陽電池部分との調和が一層よいものとなっ
た。Example 3 The colored glass of Example 2 molded by the float method was subjected to sandblasting to give a rough surface to the surface, a liquid storage wall was provided around the glass, and a hydrofluoric acid solution was passed over the surface to shake the glass. While moving, it was held for 2 minutes for etching. Although the etched colored glass had a visible light transmittance of 18% and a surface irregularity of about 100 μm, it had a calm reflection characteristic, and became more harmonious with the solar cell part.
【００１８】例４ 透明の普通板ガラスの片面を弗硫酸溶液によりエッチン
グ処理して、約３μｍの凹凸表面とし、このガラスの他
の面に無機系塗料の被膜を形成して、可視光線透過率が
１０％のグレー系の着色ガラスを得た。このガラスを通
常の強化の半分程度の強化処理を施して半強化ガラスに
した後、屋根材として使用したところ、外観的にも強度
的にも優れた屋根ガラスであることが確認できた。Example 4 One surface of a transparent ordinary plate glass was etched with a hydrofluoric acid solution to form an irregular surface of about 3 μm, and a coating of an inorganic paint was formed on the other surface of the glass. A 10% gray colored glass was obtained. When this glass was subjected to a tempering treatment of about half of normal tempering to obtain a semi-tempered glass, and then used as a roofing material, it was confirmed that the glass was a roof glass excellent in appearance and strength.
【００１９】例５ 結晶系太陽電池パネルの模様を製版した印刷用スクリー
ンを製作し、透明でノングレヤ調の型板ガラスの平滑面
側に、このスクリーンでブルー／グレー色の無機インク
を使用して印刷した後、通常の強化処理を施し前記太陽
電池パネルの意匠もしくは模様に近似する強化ガラスを
得た。このガラスの平均可視光線透過率は約３０％であ
った。Example 5 A printing screen in which a pattern of a crystalline solar cell panel was made was prepared and printed on the smooth surface side of a transparent, non-glare-shaped template glass using a blue / gray inorganic ink with this screen. After that, a normal tempering treatment was performed to obtain a tempered glass approximating the design or pattern of the solar cell panel. The average visible light transmittance of this glass was about 30%.
【００２０】このガラスを太陽電池屋根の太陽電池以外
の部分の屋根用ガラスとして使用したところ、太陽電池
部分と非常に調和した屋根材となり、一体性の高い屋根
が得られた。When this glass was used as a roof glass for a portion of the solar cell roof other than the solar cell, the roof material became very harmonious with the solar cell portion, and a roof with high integrity was obtained.
【００２１】[0021]
【発明の効果】本発明の屋根用ガラスは、太陽電池屋根
の太陽電池以外の部分の屋根材として意匠および質感と
もに太陽電池屋根と一体性が高い。また、風化、腐食な
どの問題がなく耐久性の優れた屋根材であり、安全ガラ
スの形態で使用すれば割れなどの心配も一切なくなり、
安全性にも優れる。The roof glass of the present invention is highly integrated with the solar cell roof in both design and texture as a roof material for portions other than the solar cells of the solar cell roof. In addition, it is a durable roofing material without problems such as weathering and corrosion, and if used in the form of safety glass, there is no worry about cracking etc.
Excellent safety.
Claims (3)
からなり、その表面が反射防止性を有することを特徴と
する太陽電池屋根用ガラス。1. A solar cell roof glass comprising a colored glass having a visible light transmittance of 5 to 70% and having a surface having antireflection properties.
ラス、線入りガラスおよび合わせガラス等の安全ガラス
であることを特徴とする請求項１記載の太陽電池屋根用
ガラス。2. The glass for a solar cell roof according to claim 1, wherein the colored glass is a safety glass such as a tempered glass, a netted glass, a lined glass and a laminated glass.
近似する模様からなる着色被膜を有する請求項１記載の
太陽電池屋根用ガラス。3. The glass for a solar cell roof according to claim 1, wherein the colored glass has a colored coating having a pattern similar to a pattern of a solar cell portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9029403A JPH10227102A (en) | 1997-02-13 | 1997-02-13 | Glass for solar cell roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9029403A JPH10227102A (en) | 1997-02-13 | 1997-02-13 | Glass for solar cell roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10227102A true JPH10227102A (en) | 1998-08-25 |
Family
ID=12275182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9029403A Withdrawn JPH10227102A (en) | 1997-02-13 | 1997-02-13 | Glass for solar cell roof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10227102A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437235B1 (en) | 1999-03-26 | 2002-08-20 | Canon Kabushiki Kaisha | Solar cell module, solar cell-bearing roof and solar cell power generation system |
| JP2017522845A (en) * | 2014-06-25 | 2017-08-10 | セイジ・エレクトロクロミクス，インコーポレイテッド | Solar power generator with scalable size and power capacity |
| US10666189B2 (en) | 2015-01-06 | 2020-05-26 | Sage Electrochromics, Inc. | Set of window assemblies and a method of fabricating the same |
-
1997
- 1997-02-13 JP JP9029403A patent/JPH10227102A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437235B1 (en) | 1999-03-26 | 2002-08-20 | Canon Kabushiki Kaisha | Solar cell module, solar cell-bearing roof and solar cell power generation system |
| JP2017522845A (en) * | 2014-06-25 | 2017-08-10 | セイジ・エレクトロクロミクス，インコーポレイテッド | Solar power generator with scalable size and power capacity |
| US10170654B2 (en) | 2014-06-25 | 2019-01-01 | Sage Electrochromics, Inc. | Solar powered device with scalable size and power capacity |
| US10666189B2 (en) | 2015-01-06 | 2020-05-26 | Sage Electrochromics, Inc. | Set of window assemblies and a method of fabricating the same |
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