JP3751373B2 - Roof structure with solar panel - Google Patents

Roof structure with solar panel Download PDF

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Publication number
JP3751373B2
JP3751373B2 JP20372096A JP20372096A JP3751373B2 JP 3751373 B2 JP3751373 B2 JP 3751373B2 JP 20372096 A JP20372096 A JP 20372096A JP 20372096 A JP20372096 A JP 20372096A JP 3751373 B2 JP3751373 B2 JP 3751373B2
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solar cell
cell panel
substrate
support bar
roof
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JPH1046771A (en
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修 石川
浩文 井田
則和 坂井
弘道 黒田
直子 大矢
唯男 笠原
明雄 笠原
政雄 下里
文紀 山口
賢吾 若林
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Misawa Homes Co Ltd
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Misawa Homes Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/30—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors
    • F24S25/33—Arrangement of stationary mountings or supports for solar heat collector modules using elongate rigid mounting elements extending substantially along the supporting surface, e.g. for covering buildings with solar heat collectors forming substantially planar assemblies, e.g. of coplanar or stacked profiles
    • 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]
    • 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
    • Y02B10/20—Solar thermal
    • 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
    • Y02E10/47—Mountings or tracking

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Photovoltaic Devices (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、太陽電池パネル付き屋根構造体に関する。
【０００２】
【背景技術】
従来より、建物の屋根等には、太陽エネルギーを電気として有効利用するために太陽電池が設けられることがある。
このような太陽電池パネル付きの屋根として、本出願人は、所定数のソーラーセルが収められた防水ケース周縁に縦枠および横枠を取り付けた太陽電池パネルを用い、屋根の傾斜に沿って固定されたレール状の支持部材に太陽電池パネルの縦枠を支持させる構造を提案した（特開平7-180310号公報）。この構造では、隣接する太陽電池パネル間への水の浸入を阻止するために、パッキン材が設けられている。
【０００３】
また、本出願人は、表面に太陽電池が設けられたルーフィングを屋根下地材に張り、このルーフィング上に並設したレール状の支持具にガラス板を一部重なるように配列して、その重ねられた部分でボルトおよびキャップによりガラス板を支持具に固定する構造を提案した（特願平7-178764号）。この構造においても、隣接するガラス板間にパッキン材を充填することにより、防水処理が行われている。
【０００４】
【発明が解決しようとする課題】
しかし、これらの屋根構造では、太陽電池パネル或いはガラス板と、屋根面との間の隙間を塞ぐことにより防水性を確保するので、太陽電池パネル間にそれぞれパッキン材を充填しなければならず、手間やコストがかかるという問題があった。
【０００５】
本発明の目的は、少ないコストで容易に太陽電池パネルを施工できる太陽電池パネル付き屋根構造体を提供することにある。
【０００６】
【課題を解決するための手段】
本発明の太陽電池パネル付き屋根構造体は、図面を参照して説明すると、一方向に傾斜した屋根面１１Ａ上に、長手方向が前記屋根面１１Ａの傾斜方向に沿うように並列配置された支持桟３０と、この支持桟３０の上面に両側縁部が支持されかつ前記支持桟３０の前記長手方向に沿って配列された太陽電池パネル２０とを有し、前記支持桟３０の前記上面にはその長手方向に沿って複数条の溝３１が並設されていることを特徴とする。
【０００７】
支持桟３０の上面に太陽電池パネル２０の側縁部を支持させると支持桟３０上面と太陽電池パネル２０との間には毛管現象を現す程度の微細な空間（細管）が形成される。この微細な空間に浸入した水は、毛管現象により支持桟３０上面と太陽電池パネル２０との間を移動して太陽電池パネル２０と屋根面１１Ａとの間の隙間１５まで達することがあり、防水性能が得られない。
【０００８】
本発明においては、支持桟３０の上面に溝３１が形成されているため、支持桟３０の上面と太陽電池パネル２０との間に前述した微細な空間よりも大きい空間が形成され、微細な空間が連続するのを防止できるようになり、毛管現象の発生を抑制できる。これにより、雨水等が支持桟３０の上面と太陽電池パネル２０との間に浸入しても、太陽電池パネル２０と屋根面１１Ａとの間の隙間１５まで毛管現象により達することがなくなり、良好な防水性能が得られる。従って、隣接する太陽電池パネル２０間に従来のパッキン材を充填する必要がなくなり、太陽電池パネル２０の施工を容易化できる。
【０００９】
そして、前記支持桟３０はその長手方向が前記屋根面１１Ａの傾斜方向に沿うように設置されているので、支持桟３０上面の溝３１が傾斜するようになるため、溝３１で捕捉した水を屋根面１１Ａの傾斜方向に沿って簡単かつ確実に排水することができる。
また、溝３１は支持桟３０の長手方向に沿って複数条並設されているので、太陽電池パネル２０と支持桟３０の上面との間において、微細な空間が太陽電池パネル２０の側縁から中央に向かって太陽電池パネル２０と屋根面１１Ａとの間の隙間１５まで連続するのを確実に防止することができ、優れた防水性が得られる。
さらに、支持桟３０の上面に溝３１を設けるだけでよいから、支持桟３０を簡単かつ低コストに形成できる。そして、太陽電池パネル２０は支持桟３０の上面に支持させるだけで簡単に設置できる。
これらにより、前記目的が達成される。
【００１０】
前記太陽電池パネル２０は、少なくともいずれか一方が透光性を有しかつ互いに重ねられた第一の基板２１および第二の基板２２と、これらの第一の基板２１および第二の基板２２の対向面のうちいずれか一方に設けられた薄膜太陽電池層２３と、前記第一の基板２１および第二の基板２２の間に介装された透光性を有する合成樹脂充填材２４とを備えていることが望ましい。
【００１１】
このように第一の基板２１および第二の基板２２を重ねて太陽電池パネル２０を構成すれば、太陽電池パネル２０の強度を向上できるようになり、従来のケースや縦枠および横枠が必要なくなり、太陽電池パネル２０の構造を簡略化できるとともに製造コストを低減することができる。
また、薄膜太陽電池層２３を第一の基板２１または第二の基板２２に直接設けるので、太陽電池パネル２０を簡単かつ低コストに形成できる。
【００１２】
そして、第一の基板２１および第二の基板２２の間には透光性を有する合成樹脂充填材２４が介装されているので、薄膜太陽電池層２３への光の入射を妨げることなく第一の基板２１および第二の基板２２を簡単に接着できる。また、基板２１，２２が割れても飛散することがなくなるため、隣家への延焼を防止できるようになり、太陽電池パネル２０を配列するだけで防火性能が得られるようになる。
【００１３】
また、前記溝３１は、前記太陽電池パネル２０から離れるにしたがって幅が狭くなる三角形断面を有することが望ましい。
このように溝３１を断面三角形に形成すれば、毛管現象の発生を確実に抑制できるうえに、太陽電池パネル２０と支持桟３０との間に浸入した水を確実に捕捉できるようになり、一層良好な防水性が得られる。
【００１５】
前記支持桟３０の下端部には、その長手方向に沿って樋部３２が設けられていることが望ましい。
このような樋部３２を設ければ、雨水等が太陽電池パネル２０と屋根面１１Ａとの間の隙間１５に浸入しても、樋部３２で捕捉して屋根面１１Ａの傾斜方向に沿って排水できるので、防水性が一層良好になる。
【００１６】
【発明の実施の形態】
図１には、本実施形態の太陽電池パネル付き屋根構造体１０が示されている。この屋根構造体１０は、例えば、屋根パネルであり、屋根面１１Ａである表面にルーフィングが張られた屋根下地材１１と、この屋根面１１Ａ上に並列配置された長尺の支持桟３０と、この支持桟３０の上面に両側縁部が支持されかつ支持桟３０の長手方向に沿って配列された太陽電池パネル２０とを含んで構成されている。
屋根下地材１１は一方向に傾斜して設けられ、支持桟３０はその長手方向が屋根面１１Ａの傾斜方向に沿うように設置されている。
【００１７】
図２に示すように、太陽電池パネル２０は、透光性を有しかつ互いに重ねられた第一の基板２１および第二の基板２２と、第一の基板２１の第二の基板２２との対向面に設けられた薄膜太陽電池層２３とを備えている。
【００１８】
第一の基板２１および第二の基板２２は、矩形かつ略同じ大きさの平面形状を有し、ガラスやアクリル樹脂等の透光性を有する材料により形成されている。
第一の基板２１に設けられた薄膜太陽電池層２３は、例えば、気相成長により第一の基板２１に直接形成されたアモルファスＳｉおよび電極を含んで構成されている。
【００１９】
これらの第一の基板２１および第二の基板２２の間には透光性を有する合成樹脂充填材２４が介装されている。
合成樹脂充填材２４は、ＥＶＡ（Ethylene Vinylacetate）やＰＶＢ（Poly Vinylbutylol）等の透明な合成樹脂よりなる。第一の基板２１と第二の基板２２とは、この合成樹脂充填材２４を接着層として互いに接合されている。基板２１，２２同士の接着は、合成樹脂充填材２４を挟み込んだ状態で熱および圧力を加えることにより行われる。
【００２０】
図３に示すように、支持桟３０は、屋根面１１Ａ上に釘等の止着具や接着剤により固定された基部３０Ａと、この基部３０Ａ上に立ち上がる支持部３０Ｂとを備え、これらの基部３０Ａおよび支持部３０Ｂは一体成形されている。この支持桟３０の材質は、例えば、エラストマであり、具体的には、ＥＰＤＭ（エチレン−プロピレン−ジエン三元共重合体配合物）、ブチルゴム、建築資材として使用されているゴム、シリコンを含むエラストマ等である。
【００２１】
支持部３０Ｂの上面にはその長手方向に沿って複数条の溝３１が並設されている。この溝３１は、太陽電池パネル２０から離れるにしたがって幅が狭くなる三角形断面を備え、溝３１同士はほぼ隙間なく隣接している。
このような支持部３０Ｂの上面には、その長手方向（屋根面１１Ａの傾斜方向）と直交する方向に隣接する太陽電池パネル２０の側縁部が、ねじや釘等の適宜な固定手段により固定されている。
【００２２】
支持桟３０の下端部である基部３０Ａには、その長手方向に沿って樋部３２が設けられている。樋部３２は、支持部３０Ｂの両側の基部３０Ａ上面に形成されている。この樋部３２は、基部３０Ａの長手方向の両側縁部に設けられた立ち上がり部３２Ａおよび支持部３０Ｂの側面により、上部が開口した断面コ字状に形成されている。
このような支持桟３０は、予め押出成形等により長尺状に形成しておき、ロール状に巻き取った状態で搬送できる。設置の際には、巻き取った支持桟３０を屋根面１１Ａ上に繰り出して必要な長さに切断してから固定する。なお、支持桟３０は、建設現場で設置してもよく、或いは、工場で設置してもよい。
【００２３】
このように構成された本実施形態においては、支持部３０Ｂの上面で隣接する太陽電池パネル２０の間に雨水等が浸入しても、溝３１で捕捉されて屋根面１１Ａの傾斜方向に沿って排水される。また、支持部３０Ｂの上面と太陽電池パネル２０との間には溝３１による空間が形成され、毛管現象が生じる程度の微細な空間が太陽電池パネル２０の側縁から中央に向かって連続することがないので、毛管現象により太陽電池パネル２０と屋根下地材１１との間の隙間１５に水が浸入することがない。仮に、太陽電池パネル２０間から浸入した水が毛管現象により隙間１５に浸入しても、樋部３２で捕捉されて屋根面１１Ａの傾斜方向に沿って排水される。
【００２４】
このような本実施形態によれば、以下のような効果がある。
すなわち、支持部３０Ｂの上面に太陽電池パネル２０の側縁部を支持させると支持部３０Ｂ上面と太陽電池パネル２０との間には毛管現象を現す程度の微細な空間が形成されるが、支持部３０Ｂの上面には溝３１が形成されているため、この微細な空間よりも大きい空間が形成され、微細な空間が連続するのを防止できるようになり、毛管現象の発生を抑制できる。これにより、雨水等が太陽電池パネル２０と支持部３０Ｂの上面との間に浸入しても、毛管現象で太陽電池パネル２０と屋根下地材１１との間の隙間１５まで達することがなくなり、良好な防水性能が得られる。従って、隣接する太陽電池パネル２０間に従来のパッキン材を充填する必要がなくなり、太陽電池パネル２０の施工を容易化できる。
【００２５】
また、溝３１は支持桟３０の長手方向に沿って複数条並設されているので、太陽電池パネル２０と支持部３０Ｂの上面との間において、微細な空間が太陽電池パネル２０の側縁から中央に向かって太陽電池パネル２０と屋根下地材１１との間の隙間１５まで連続するのを確実に防止することができ、優れた防水性が得られる。
さらに、支持部３０Ｂの上面に溝３１を設けるだけでよいから、支持桟３０を簡単かつ低コストに形成できる。そして、太陽電池パネル２０は支持桟３０の上面に支持させるだけで簡単に設置できる。
【００２６】
さらに、第一の基板２１および第二の基板２２を重ねて太陽電池パネル２０を構成したため、太陽電池パネル２０の強度を向上できるようになり、従来のケースや縦枠および横枠が必要なくなり、太陽電池パネル２０の構造を簡略化できるとともに製造コストを低減することができる。
また、薄膜太陽電池層２３を第一の基板２１に直接設けるので、太陽電池パネル２０を簡単かつ低コストに形成できる。
【００２７】
そして、第一の基板２１および第二の基板２２の間には透光性を有する合成樹脂充填材２４が介装されているので、薄膜太陽電池層２３への光の入射を妨げることなく第一の基板２１および第二の基板２２を簡単に接着できる。また、基板２１，２２が割れても飛散することがなくなるため、隣家への延焼を防止できるようになり、太陽電池パネル２０を配列するだけで防火性能が得られるようになる。
【００２８】
また、溝３１は、太陽電池パネル２０から離れるにしたがって幅が狭くなる三角形断面に形成されているので、毛管現象の発生を抑制できるうえに、支持部３０Ｂ上面と太陽電池パネル２０との間に浸入した水を確実に捕捉できるようになり、一層良好な防水性が得られる。
さらに、溝３１同士はほぼ隙間なく設けられているので、太陽電池パネル２０と接触する面積が少なくなり、毛管現象の発生を効率よく確実に防止することができる。
【００２９】
そして、屋根面１１Ａは一方向に傾斜した傾斜面であり、支持桟３０はその長手方向が屋根面１１Ａの傾斜方向に沿うように設置されているため、支持部３０Ｂ上面の溝３１が傾斜するようになり、溝３１で捕捉した水を屋根面１１Ａの傾斜方向に沿って簡単かつ確実に排水することができる。
【００３０】
さらに、基部３０Ａには、その長手方向に沿って樋部３２が設けられているので、雨水等が太陽電池パネル２０と屋根下地材１１との間の隙間１５に浸入しても、樋部３２で捕捉して屋根面１１Ａの傾斜方向に沿って排水できるので、防水性が一層良好になる。
【００３１】
そして、支持桟３０は弾性を有するエラストマにより形成されているので、ロール状に巻き取ることが可能となり、搬送等に際して扱いやすい。また、設置時に必要な長さに切断できるので、支持桟３０同士の継ぎ目がなくなる。
【００３２】
なお、本発明は前記実施形態に限定されるものではなく、本発明の目的を達成できる他の構成等を含み、以下に示すような変形なども本発明に含まれる。
すなわち、前記実施形態の支持桟３０の溝３１は断面三角形に形成されていたが、断面矩形に形成してもよく、或いは、円弧状としてもよい。
また、支持桟３０の材質はエラストマに限らず、例えば、合成樹脂、或いは、アルミ等としてもよい。
【００３３】
そして、前記実施形態の太陽電池パネル２０の薄膜太陽電池層２３は第一の基板２１に設けられていたが、第一の基板２１および第二の基板２２の対向面のうちいずれか一方に設ければよいので、第二の基板２２の第一の基板２１との対向面に設けてもよい。
【００３４】
また、前記実施形態の第一の基板２１および第二の基板２２は、透光性を有する材料により形成されていたが、屋根下地材１１側に配置される第二の基板２２の材質は透光性を有するものでなくてもよく、例えば、合成樹脂等により形成されていてもよく、或いは、強度の高い金属等により形成してもよく、これによれば太陽電池パネル２０全体の強度を上げることができる。要するに、受光する側の基板が透光性を備えていれば、光を直接受けない側の基板の材質は任意である。但し、太陽電池パネル２０両面から屋内外の光を受光する場合には、両基板２１，２２を透光性を有する材料により形成する。
【００３５】
さらに、基板２１，２２の大きさや厚さはとくには限定されず、例えば、第一の基板２１と第二の基板２２とで厚さが異なっていてもよい。しかし、第一の基板２１および第二の基板２２に同じものを用いれば、製造コストを低減できる。
【００３６】
前記実施形態では、屋根構造体１０は、屋根パネルに限らず、屋根ユニットであってもよく、垂木に固定される在来工法の屋根部であってもよく、本発明は、建物の屋根を構成する構造体であれば任意のものに適用できる。
【００３７】
【発明の効果】
以上に述べたように、本発明によれば、支持桟の上面に溝を形成したため、支持桟の上面と太陽電池パネルとの間に比較的大きい空間が形成され、微細な空間が連続するのを防止できるようになり、毛管現象の発生を抑制できる。これにより、雨水等が太陽電池パネルと支持桟の上面との間に浸入しても、毛管現象で太陽電池パネルと屋根面との間の隙間まで達することがなくなり、良好な防水性能が得られる。従って、隣接する太陽電池パネル間に従来のパッキン材を充填する必要がなくなるため、太陽電池パネルの施工を容易化できる。
【００３８】
そして、支持桟はその長手方向が屋根面の傾斜方向に沿うように設置されているので、支持桟上面の溝が傾斜するようになるため、溝で捕捉した水を屋根面の傾斜方向に沿って簡単かつ確実に排水することができる。
また、溝は支持桟の長手方向に沿って複数条並設されているので、太陽電池パネルと支持桟の上面との間において、微細な空間が太陽電池パネルの側縁から中央に向かって太陽電池パネルと屋根面との間の隙間まで連続するのを確実に防止することができ、優れた防水性が得られる。
さらに、支持桟の上面に溝を設けるだけでよいから、支持桟を簡単かつ低コストに形成できる。そして、太陽電池パネルは支持桟の上面に支持させるだけで簡単に設置できる。
【図面の簡単な説明】
【図１】本発明の一実施形態を示す斜視図。
【図２】前記実施形態の太陽電池パネルを示す断面図。
【図３】図１のIII−III線断面図。
【符号の説明】
１０ 太陽電池パネル付き屋根構造体。
２０ 太陽電池パネル
２１ 第一の基板
２２ 第二の基板
２３ 薄膜太陽電池層
２４ 合成樹脂充填材
３０ 支持桟
３１ 溝
３２ 樋部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof structure with a solar cell panel.
[0002]
[Background]
Conventionally, a solar cell may be provided on a roof of a building or the like in order to effectively use solar energy as electricity.
As such a roof with a solar panel, the present applicant uses a solar panel with a vertical frame and a horizontal frame attached to the periphery of a waterproof case containing a predetermined number of solar cells, and is fixed along the slope of the roof. A structure has been proposed in which the vertical frame of the solar cell panel is supported by the rail-shaped support member (Japanese Patent Laid-Open No. 7-80310). In this structure, a packing material is provided in order to prevent water from entering between adjacent solar cell panels.
[0003]
Further, the applicant applies a roof having a solar cell on the surface thereof to a roof base material, and arranges the glass plates on a rail-like support arranged in parallel on the roof so as to partially overlap each other. A structure was proposed in which the glass plate was fixed to the support using bolts and caps (Japanese Patent Application No. 7-178764). Even in this structure, waterproofing is performed by filling a packing material between adjacent glass plates.
[0004]
[Problems to be solved by the invention]
However, in these roof structures, the solar cell panels or glass plates and the gap between the roof surface are secured to ensure waterproofness, so a packing material must be filled between the solar cell panels, There was a problem that it took time and cost.
[0005]
The objective of this invention is providing the roof structure body with a solar cell panel which can construct a solar cell panel easily at low cost.
[0006]
[Means for Solving the Problems]
The roof structure with a solar cell panel of the present invention will be described with reference to the drawings . On the roof surface 11A inclined in one direction, the support is arranged in parallel so that the longitudinal direction is along the inclination direction of the roof surface 11A. a bar 30, both side edge portions are supported on the upper surface of the support bar 30 and has a solar panel 20 in which the arrayed along the longitudinal direction of the support bar 30, the upper surface of the support bar 30 is A plurality of grooves 31 are juxtaposed along the longitudinal direction.
[0007]
When the side edge portion of the solar cell panel 20 is supported on the upper surface of the support bar 30, a minute space (capillary tube) is formed between the upper surface of the support bar 30 and the solar cell panel 20 so as to exhibit capillary action. The water that has entered the fine space may move between the upper surface of the support bar 30 and the solar cell panel 20 due to capillary action and reach the gap 15 between the solar cell panel 20 and the roof surface 11A. Performance cannot be obtained.
[0008]
In the present invention, since the groove 31 is formed on the upper surface of the support bar 30, a space larger than the fine space described above is formed between the upper surface of the support bar 30 and the solar cell panel 20. Can be prevented, and the occurrence of capillary action can be suppressed. Thereby, even if rainwater or the like enters between the upper surface of the support bar 30 and the solar cell panel 20, the gap 15 between the solar cell panel 20 and the roof surface 11A does not reach the capillarity, which is favorable. Waterproof performance is obtained. Therefore, it is not necessary to fill the conventional packing material between the adjacent solar cell panels 20, and the construction of the solar cell panel 20 can be facilitated.
[0009]
And since the said support bar 30 is installed so that the longitudinal direction may follow the inclination direction of the said roof surface 11A, since the groove | channel 31 of the upper surface of the support bar 30 will incline, the water captured by the groove | channel 31 is collected. The water can be drained easily and reliably along the inclination direction of the roof surface 11A.
In addition, since the grooves 31 are arranged in parallel along the longitudinal direction of the support bar 30, a minute space is formed from the side edge of the solar cell panel 20 between the solar cell panel 20 and the upper surface of the support bar 30. Continuing to the gap 15 between the solar cell panel 20 and the roof surface 11A toward the center can be reliably prevented, and excellent waterproof properties can be obtained.
Furthermore, since it is only necessary to provide the groove 31 on the upper surface of the support bar 30, the support bar 30 can be formed easily and at low cost. The solar cell panel 20 can be easily installed simply by being supported on the upper surface of the support bar 30.
Thus, the object is achieved.
[0010]
The solar cell panel 20 includes at least one of the first substrate 21 and the second substrate 22 that are translucent and overlap each other, and the first substrate 21 and the second substrate 22. A thin-film solar cell layer 23 provided on one of the opposing surfaces; and a synthetic resin filler 24 having translucency interposed between the first substrate 21 and the second substrate 22. It is desirable that
[0011]
If the solar cell panel 20 is configured by overlapping the first substrate 21 and the second substrate 22 in this manner, the strength of the solar cell panel 20 can be improved, and a conventional case, vertical frame, and horizontal frame are necessary. Thus, the structure of the solar cell panel 20 can be simplified and the manufacturing cost can be reduced.
Moreover, since the thin film solar cell layer 23 is provided directly on the first substrate 21 or the second substrate 22, the solar cell panel 20 can be formed easily and at low cost.
[0012]
And since the synthetic resin filler 24 which has translucency is interposed between the 1st board | substrate 21 and the 2nd board | substrate 22, it is the 1st, without preventing incidence of the light to the thin film solar cell layer 23. The one substrate 21 and the second substrate 22 can be easily bonded. Moreover, even if the substrates 21 and 22 are cracked, they are not scattered, so that it is possible to prevent the spread of fire to the neighbors, and fire prevention performance can be obtained simply by arranging the solar cell panels 20.
[0013]
In addition, the groove 31 preferably has a triangular cross section that becomes narrower as the distance from the solar cell panel 20 increases.
If the grooves 31 are formed in a triangular cross section in this way, the occurrence of capillary action can be reliably suppressed, and water that has entered between the solar cell panel 20 and the support bar 30 can be reliably captured. Good waterproofness is obtained.
[0015]
It is desirable that a flange portion 32 is provided at the lower end portion of the support bar 30 along the longitudinal direction thereof.
If such a ridge 32 is provided, even if rainwater or the like enters the gap 15 between the solar cell panel 20 and the roof surface 11A, it is captured by the ridge 32 and along the inclination direction of the roof surface 11A. Since the water can be drained, the waterproof property is further improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a roof structure 10 with a solar cell panel of the present embodiment. The roof structure 10 is, for example, a roof panel, a roof base material 11 having a roofing surface stretched on a surface which is a roof surface 11A, and a long support bar 30 arranged in parallel on the roof surface 11A. The solar cell panel 20 is configured to include both side edges supported on the upper surface of the support bar 30 and arranged along the longitudinal direction of the support bar 30.
The roof base material 11 is provided to be inclined in one direction, and the support bar 30 is installed such that the longitudinal direction thereof is along the inclination direction of the roof surface 11A.
[0017]
As shown in FIG. 2, the solar cell panel 20 includes a first substrate 21 and a second substrate 22 that are translucent and overlap each other, and a second substrate 22 of the first substrate 21. And a thin-film solar cell layer 23 provided on the opposite surface.
[0018]
The first substrate 21 and the second substrate 22 have a rectangular and substantially the same planar shape, and are formed of a light-transmitting material such as glass or acrylic resin.
The thin film solar cell layer 23 provided on the first substrate 21 includes, for example, amorphous Si and electrodes directly formed on the first substrate 21 by vapor phase growth.
[0019]
A synthetic resin filler 24 having translucency is interposed between the first substrate 21 and the second substrate 22.
The synthetic resin filler 24 is made of a transparent synthetic resin such as EVA (Ethylene Vinylacetate) or PVB (Poly Vinylbutylol). The first substrate 21 and the second substrate 22 are bonded to each other using the synthetic resin filler 24 as an adhesive layer. The substrates 21 and 22 are bonded to each other by applying heat and pressure with the synthetic resin filler 24 sandwiched therebetween.
[0020]
As shown in FIG. 3, the support bar 30 includes a base 30A fixed on the roof surface 11A by a fastening tool such as a nail or an adhesive, and a support 30B rising on the base 30A. 30A and the support portion 30B are integrally formed. The material of the support bar 30 is, for example, an elastomer, and specifically, an elastomer containing EPDM (ethylene-propylene-diene terpolymer blend), butyl rubber, rubber used as a building material, and silicon. Etc.
[0021]
A plurality of grooves 31 are juxtaposed along the longitudinal direction of the upper surface of the support portion 30B. The groove 31 has a triangular cross-section that becomes narrower as the distance from the solar cell panel 20 increases, and the grooves 31 are adjacent to each other with almost no gap.
On the upper surface of the support portion 30B, side edge portions of the solar cell panel 20 adjacent to the direction orthogonal to the longitudinal direction (inclination direction of the roof surface 11A) are fixed by appropriate fixing means such as screws and nails. Has been.
[0022]
A base portion 30 </ b> A that is a lower end portion of the support bar 30 is provided with a flange portion 32 along the longitudinal direction thereof. The collar portion 32 is formed on the upper surface of the base portion 30A on both sides of the support portion 30B. The flange portion 32 is formed in a U-shaped cross-section with an upper portion opened by a rising portion 32A provided on both side edges in the longitudinal direction of the base portion 30A and side surfaces of the support portion 30B.
Such a support bar 30 can be formed in a long shape by extrusion or the like in advance and can be conveyed in a state of being wound into a roll. At the time of installation, the wound support bar 30 is drawn out on the roof surface 11A, cut to a required length, and fixed. The support bar 30 may be installed at a construction site or may be installed at a factory.
[0023]
In the present embodiment configured as above, even if rainwater or the like enters between the adjacent solar cell panels 20 on the upper surface of the support portion 30B, it is captured by the groove 31 and along the inclination direction of the roof surface 11A. Drained. Further, a space by the groove 31 is formed between the upper surface of the support portion 30B and the solar cell panel 20, and a minute space that causes capillary action is continuous from the side edge of the solar cell panel 20 toward the center. Therefore, water does not enter the gap 15 between the solar cell panel 20 and the roof base material 11 due to the capillary phenomenon. Even if water that has entered from between the solar cell panels 20 enters the gap 15 due to capillary action, it is captured by the flange 32 and drained along the inclination direction of the roof surface 11A.
[0024]
According to this embodiment, there are the following effects.
That is, when the side edge portion of the solar cell panel 20 is supported on the upper surface of the support portion 30B, a minute space that exhibits capillary action is formed between the upper surface of the support portion 30B and the solar cell panel 20. Since the groove 31 is formed on the upper surface of the portion 30B, a space larger than this minute space is formed, and it becomes possible to prevent the minute spaces from continuing, thereby suppressing the occurrence of capillary action. As a result, even if rainwater or the like enters between the solar cell panel 20 and the upper surface of the support portion 30B, it does not reach the gap 15 between the solar cell panel 20 and the roof base material 11 due to capillary action. Waterproof performance can be obtained. Therefore, it is not necessary to fill the conventional packing material between the adjacent solar cell panels 20, and the construction of the solar cell panel 20 can be facilitated.
[0025]
Moreover, since the groove | channel 31 is arranged in multiple numbers along the longitudinal direction of the support bar 30, a minute space is from the side edge of the solar cell panel 20 between the solar cell panel 20 and the upper surface of the support part 30B. Continuing to the gap 15 between the solar cell panel 20 and the roof base material 11 toward the center can be reliably prevented, and excellent waterproofness can be obtained.
Furthermore, since it is only necessary to provide the groove 31 on the upper surface of the support portion 30B, the support bar 30 can be formed easily and at low cost. The solar cell panel 20 can be easily installed simply by being supported on the upper surface of the support bar 30.
[0026]
Furthermore, since the solar cell panel 20 is configured by overlapping the first substrate 21 and the second substrate 22, the strength of the solar cell panel 20 can be improved, and the conventional case, vertical frame, and horizontal frame are no longer necessary. The structure of the solar cell panel 20 can be simplified and the manufacturing cost can be reduced.
Moreover, since the thin film solar cell layer 23 is provided directly on the first substrate 21, the solar cell panel 20 can be formed easily and at low cost.
[0027]
And since the synthetic resin filler 24 which has translucency is interposed between the 1st board | substrate 21 and the 2nd board | substrate 22, it is the 1st, without preventing incidence of the light to the thin film solar cell layer 23. The one substrate 21 and the second substrate 22 can be easily bonded. Moreover, even if the substrates 21 and 22 are cracked, they are not scattered, so that it is possible to prevent the spread of fire to the neighbors, and fire prevention performance can be obtained simply by arranging the solar cell panels 20.
[0028]
Moreover, since the groove | channel 31 is formed in the triangular cross section which becomes narrow as it leaves | separates from the solar cell panel 20, it can suppress generation | occurrence | production of a capillary phenomenon, and also between the support part 30B upper surface and the solar cell panel 20. Intruded water can be reliably captured, and a better waterproof property can be obtained.
Furthermore, since the grooves 31 are provided with almost no gap, the area in contact with the solar cell panel 20 is reduced, and the occurrence of capillary action can be efficiently and reliably prevented.
[0029]
Since the roof surface 11A is an inclined surface inclined in one direction, and the support bar 30 is installed so that the longitudinal direction thereof is along the inclination direction of the roof surface 11A, the groove 31 on the upper surface of the support portion 30B is inclined. Thus, the water captured by the groove 31 can be easily and reliably drained along the inclination direction of the roof surface 11A.
[0030]
Furthermore, since the base portion 30 </ b> A is provided with the flange portion 32 along the longitudinal direction thereof, even if rainwater or the like enters the gap 15 between the solar cell panel 20 and the roof base material 11, the flange portion 32. Since it can capture | acquire and drain along the inclination direction of 11 A of roof surfaces, waterproofness becomes still better.
[0031]
Since the support bar 30 is formed of an elastic elastomer, the support bar 30 can be wound into a roll and is easy to handle during transportation. Moreover, since it can cut | disconnect to length required at the time of installation, the joint line of the support bars 30 is lose | eliminated.
[0032]
In addition, this invention is not limited to the said embodiment, Other modifications etc. which can achieve the objective of this invention are included, The deformation | transformation etc. which are shown below are also contained in this invention.
That is, although the groove 31 of the support bar 30 of the above embodiment is formed in a cross-sectional triangle, it may be formed in a cross-sectional rectangle or may be an arc.
Further, the material of the support bar 30 is not limited to elastomer, and may be, for example, synthetic resin or aluminum.
[0033]
And although the thin film solar cell layer 23 of the solar cell panel 20 of the said embodiment was provided in the 1st board | substrate 21, it provided in any one among the opposing surfaces of the 1st board | substrate 21 and the 2nd board | substrate 22. Therefore, the second substrate 22 may be provided on the surface facing the first substrate 21.
[0034]
Moreover, although the 1st board | substrate 21 and the 2nd board | substrate 22 of the said embodiment were formed with the material which has translucency, the material of the 2nd board | substrate 22 arrange | positioned at the roof base material 11 side is transparent. For example, it may be formed of a synthetic resin or the like, or may be formed of a high-strength metal or the like. According to this, the strength of the entire solar cell panel 20 is increased. Can be raised. In short, as long as the light receiving substrate has translucency, the material of the substrate that does not directly receive light is arbitrary. However, when receiving indoor and outdoor light from both surfaces of the solar cell panel 20, both the substrates 21 and 22 are formed of a light-transmitting material.
[0035]
Further, the size and thickness of the substrates 21 and 22 are not particularly limited, and for example, the first substrate 21 and the second substrate 22 may have different thicknesses. However, if the same substrate is used for the first substrate 21 and the second substrate 22, the manufacturing cost can be reduced.
[0036]
In the above embodiment, the roof structure 10 is not limited to the roof panel may be a roof unit may be a roof portion of the conventional method that is secured to the rafters, the present invention provides a building roof Any structure can be applied as long as it is a structure that constitutes.
[0037]
【The invention's effect】
As described above, according to the present invention, since the groove is formed on the upper surface of the support bar, a relatively large space is formed between the upper surface of the support bar and the solar cell panel, and the minute space is continuous. Can be prevented, and the occurrence of capillary action can be suppressed. As a result, even if rainwater or the like enters between the solar cell panel and the upper surface of the support bar, it does not reach the gap between the solar cell panel and the roof surface due to capillary action, and good waterproof performance is obtained. . Therefore, it is not necessary to fill a conventional packing material between adjacent solar cell panels, so that the construction of the solar cell panel can be facilitated.
[0038]
And since the support bar is installed so that the longitudinal direction thereof is along the inclination direction of the roof surface, the groove on the upper surface of the support beam is inclined, so that the water captured by the groove is aligned along the inclination direction of the roof surface. Can be drained easily and reliably.
In addition, since a plurality of grooves are arranged in parallel along the longitudinal direction of the support bar, a fine space is formed between the solar cell panel and the upper surface of the support bar toward the center from the side edge of the solar cell panel. It is possible to surely prevent the gap between the battery panel and the roof surface from continuing, and an excellent waterproof property can be obtained.
Furthermore, since it is only necessary to provide a groove on the upper surface of the support bar, the support bar can be formed easily and at low cost. And a solar cell panel can be easily installed only by making it support on the upper surface of a support bar.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing the solar cell panel of the embodiment.
3 is a cross-sectional view taken along line III-III in FIG.
[Explanation of symbols]
10 Roof structure with solar panel.
20 Solar Cell Panel 21 First Substrate 22 Second Substrate 23 Thin Film Solar Cell Layer 24 Synthetic Resin Filler 30 Supporting Bar 31 Groove 32 Gutter

Claims (4)

一方向に傾斜した屋根面上に、長手方向が前記屋根面の傾斜方向に沿うように並列配置された支持桟と、
この支持桟の上面に両側縁部が支持されかつ前記支持桟の前記長手方向に沿って配列された太陽電池パネルとを有し、
前記支持桟の前記上面にはその長手方向に沿って複数条の溝が並設されている
ことを特徴とする太陽電池パネル付き屋根構造体。On the roof surface inclined in one direction, support bars arranged in parallel so that the longitudinal direction is along the inclination direction of the roof surface;
A solar cell panel having both side edges supported on the upper surface of the support bar and arranged along the longitudinal direction of the support bar,
A roof structure with a solar cell panel, wherein a plurality of grooves are provided in parallel on the upper surface of the support bar along the longitudinal direction thereof. 請求項１に記載した太陽電池パネル付き屋根構造体において、
前記太陽電池パネルは、少なくともいずれか一方が透光性を有しかつ互いに重ねられた第一の基板および第二の基板と、
これらの第一の基板および第二の基板の対向面のうちいずれか一方に設けられた薄膜太陽電池層と、
前記第一の基板および第二の基板の間に介装された透光性を有する合成樹脂充填材とを備えている
ことを特徴とする太陽電池パネル付き屋根構造体。In the roof structure with a solar cell panel according to claim 1,
The solar cell panel has a first substrate and a second substrate, at least one of which has translucency and is overlapped with each other,
A thin-film solar cell layer provided on one of the opposing surfaces of the first substrate and the second substrate;
A roof structure with a solar cell panel, comprising: a translucent synthetic resin filler interposed between the first substrate and the second substrate. 請求項１または請求項２に記載した太陽電池パネル付き屋根構造体において、
前記溝は、前記太陽電池パネルから離れるにしたがって幅が狭くなる三角形断面を有する
ことを特徴とする太陽電池パネル付き屋根構造体。In the roof structure with a solar cell panel according to claim 1 or 2,
The said groove | channel has a triangular cross section with which a width | variety becomes narrow as it leaves | separates from the said solar cell panel. The roof structure body with a solar cell panel characterized by the above-mentioned. 請求項１から請求項３までのいずれかに記載した太陽電池パネル付き屋根構造体において、
前記支持桟の下端部には、その長手方向に沿って樋部が設けられている
ことを特徴とする太陽電池パネル付き屋根構造体。In the roof structure with a solar cell panel according to any one of claims 1 to 3 ,
A roof structure with a solar cell panel, wherein a lower end portion of the support bar is provided with a flange portion along a longitudinal direction thereof.
JP20372096A 1996-08-01 1996-08-01 Roof structure with solar panel Expired - Fee Related JP3751373B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20372096A JP3751373B2 (en) 1996-08-01 1996-08-01 Roof structure with solar panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20372096A JP3751373B2 (en) 1996-08-01 1996-08-01 Roof structure with solar panel

Publications (2)

Publication Number Publication Date
JPH1046771A JPH1046771A (en) 1998-02-17
JP3751373B2 true JP3751373B2 (en) 2006-03-01

Family

ID=16478738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20372096A Expired - Fee Related JP3751373B2 (en) 1996-08-01 1996-08-01 Roof structure with solar panel

Country Status (1)

Country Link
JP (1) JP3751373B2 (en)

Also Published As

Publication number Publication date
JPH1046771A (en) 1998-02-17

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