JP5027621B2 - Solar cell module and laying structure thereof - Google Patents

Solar cell module and laying structure thereof Download PDF

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JP5027621B2
JP5027621B2 JP2007289868A JP2007289868A JP5027621B2 JP 5027621 B2 JP5027621 B2 JP 5027621B2 JP 2007289868 A JP2007289868 A JP 2007289868A JP 2007289868 A JP2007289868 A JP 2007289868A JP 5027621 B2 JP5027621 B2 JP 5027621B2
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solar cell
cell module
sheet
waterproof
waterproof sheet
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JP2009117659A (en
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周 井上
亮一 山部
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アーキヤマデ株式会社
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    • 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
    • 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

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Description

本発明は、防水シートの表面に、シート状太陽電池が一体に設けてある太陽電池モジュール、及び、その敷設構造に関する。   The present invention relates to a solar cell module in which sheet-like solar cells are integrally provided on the surface of a waterproof sheet, and a laying structure thereof.

従来、この種の太陽電池モジュールとしては、図９に示すように、防水シート２Ａの表面に、複数のシート状太陽電池２Ｂを一体に並設したものがあり、この太陽電池モジュールｍは、所定厚みの扁平な防水シート２Ａと、同様に扁平な太陽電池２Ｂとを一体に重ねて構成されたものであった（例えば、特許文献１参照）。従って、屋根面上に設置した状態においては、太陽電池２Ｂ表面は、当然の事ながら、屋根面と平行な状態になっていた。
また、この種の太陽電池モジュールの敷設構造としては、図９に示すように、ロール状に巻き取った荷姿の帯状太陽電池モジュールｍを、切り妻屋根等の傾斜屋根２０面上で、棟方向に沿わせて広げ、隣接する太陽電池モジュールｍの帯側縁部どうしが重なる状態に敷設してあった。即ち、屋根平面視において、太陽電池モジュールｍどうしの重なり部２１の長手方向は、屋根表面の勾配方向と直交するように太陽電池モジュールｍは敷設されている。 Conventionally, as this type of solar cell module, there is one in which a plurality of sheet-like solar cells 2B are integrally arranged on the surface of a waterproof sheet 2A as shown in FIG. The flat waterproof sheet 2 </ b> A having a thickness and the flat solar cell 2 </ b> B having the same thickness are integrally stacked (see, for example, Patent Document 1). Therefore, in the state installed on the roof surface, naturally the surface of the solar cell 2B was in a state parallel to the roof surface.
Further, as shown in FIG. 9, the solar cell module laying structure of this type includes a strip-shaped solar cell module m wound in a roll shape on a surface of an inclined roof 20 such as a gable roof. It extended along the direction and was laid in the state where the band side edge part of the adjacent solar cell module m overlapped. That is, in the plan view of the roof, the solar cell modules m are laid so that the longitudinal direction of the overlapping portions 21 of the solar cell modules m is orthogonal to the gradient direction of the roof surface.

特開平８−１１４０１３号公報（図１〜３）JP-A-8-1114013 (FIGS. 1 to 3)

上述した従来の太陽電池モジュールによれば、傾斜屋根面上に設置されるのが大前提であったから、設置状態では、太陽電池の表面も傾斜屋根面と同様に傾斜した状態になっており、表面に雨水等の水滴が溜まり難くかった。従って、太陽電池上に溜まった水滴の跡が塵等で汚れる心配は無く、充分な太陽エレルギーを受けて所定の発電量を確保することが可能となっていた。
しかし、取付対象屋根が陸屋根である場合には、屋根面が水平面に近い平坦面であるから、太陽電池モジュールの上面も水平に近い平坦面となり、太陽電池上に水滴が溜まってその跡に汚れが残る危険性があり、その結果、発電量が著しく低下する問題点があった。
この問題点を解消するためには、陸屋根上に、傾斜した載置面を備えた太陽電池モジュール設置用台を設けて、その設置用台の前記載置面上に、太陽電池モジュールを設置しなければならない。但し、この太陽電池モジュール設置用台は、屋根面上に突出するから、台風等の風を表裏面に直接受けることになり、それ自体に充分な強度を有する必要があると共に、屋根への取り付けに関しても、強固に行う必要があり、設備が大掛かりになってコストアップにつながる上、屋根上の美観性の低下を招きやすいと言う新たな問題点が生じることになる。
一方、従来の太陽電池モジュール敷設構造によれば、屋根そのものが前述のように傾斜屋根である場合には、水の流れを阻害することは少ないが、水平に近い状態の陸屋根上に太陽電池モジュールが設置される場合には、太陽電池モジュールどうしの重なり部の表面端にできる段差部に、シート状太陽電池表面からこぼれた雨水等の水が溜まり易い。即ち、前記重なり部の表面端にできる段差部は、水が集まりやすい水路となるわけであるが、その水路の長手方向は、屋根勾配方向と直交しているから、実質的には、水路勾配が無い状態となり、溜まったままの水が流下しにくい状態となる。その結果、太陽電池表面まで浸水して汚れを付着させ、発電量が著しく低下する問題点があった。 According to the conventional solar cell module described above, since it was a major premise to be installed on an inclined roof surface, in the installed state, the surface of the solar cell is also inclined in the same manner as the inclined roof surface, It was difficult for water droplets such as rainwater to collect on the surface. Therefore, there is no worry that the traces of water droplets accumulated on the solar cell are contaminated with dust or the like, and it is possible to secure a predetermined power generation amount by receiving sufficient solar energy.
However, if the roof to be installed is a flat roof, the roof surface is a flat surface close to a horizontal plane, so the top surface of the solar cell module is also a flat surface close to horizontal, and water droplets accumulate on the solar cell and stain the traces. As a result, there is a problem that the power generation amount is significantly reduced.
In order to solve this problem, a solar cell module installation base having an inclined mounting surface is provided on a flat roof, and the solar cell module is installed on the mounting surface of the installation base. There must be. However, since this solar cell module installation base protrudes on the roof surface, it will receive winds such as typhoons directly on the front and back surfaces, and it must have sufficient strength for itself, and it must be attached to the roof. In this case, it is necessary to carry out the process firmly, which leads to an increase in cost due to the large equipment, and a new problem that the aesthetics on the roof is liable to be lowered.
On the other hand, according to the conventional solar cell module laying structure, when the roof itself is an inclined roof as described above, there is little obstruction of the flow of water, but the solar cell module is on the flat roof in a state of being almost horizontal. When the is installed, water such as rain water spilled from the surface of the sheet-like solar cell easily collects in the step portion formed at the surface edge of the overlapping portion of the solar cell modules. That is, the step portion formed at the surface end of the overlapping portion becomes a water channel where water can easily collect, but the longitudinal direction of the water channel is orthogonal to the roof gradient direction, so that the water channel gradient is substantially. It becomes a state where there is no water, and it becomes a state in which the accumulated water is difficult to flow down. As a result, there was a problem that the surface of the solar cell was submerged to cause dirt to adhere, and the power generation amount was significantly reduced.

従って、本発明の目的は、上記問題点を解消し、設置に伴う美観性や経済性の低下が少なく、且つ、陸屋根上に設置する場合にも太陽電池モジュール上に水滴が溜まり難い状態に設置できる太陽電池モジュール関係技術を提供するところにある。   Accordingly, the object of the present invention is to eliminate the above-mentioned problems, to reduce the aesthetics and economics associated with installation, and to install in a state where water drops do not easily accumulate on the solar cell module even when installed on a flat roof. There is a place to provide solar cell module related technology.

本発明の第１の特徴構成は、防水シートの表面に、シート状太陽電池が一体に設けてある太陽電池モジュールにおいて、前記防水シートの中央部が、上方に膨出した形状の膨出部として形成してあると共に、前記膨出部の上面に前記シート状太陽電池が一体化してあり、前記防水シートの前記膨出部より外周側部分が鍔状部として形成してあり、前記鍔状部は、隣接させる別の防水シートとの接合部として構成してあり、前記防水シートの裏面側には、前記防水シートを受ける防水シート受け面を備えると共に前記防水シートと嵌合する形状に形成された防水下地材が前記防水シートとは別体に設けてあり、前記防水下地材は、水平面上に設置した状態において、上方に重なる前記シート状太陽電池の表面が水平面に対して傾斜状態となる形状に形成してあるところにある。 A first characteristic configuration of the present invention is a solar cell module in which a sheet-like solar cell is integrally provided on a surface of a waterproof sheet , wherein a central portion of the waterproof sheet is a bulging portion having a shape bulging upward. And the sheet-like solar cell is integrated on the upper surface of the bulging portion, and the outer peripheral portion of the waterproof sheet is formed as a hook-like portion, and the hook-like portion is Yes constructed as junction with another tarpaulin to be adjacent, the on the back side of the tarpaulin, shaped to mate with Rutotomoni the waterproof sheet comprising a waterproof sheet receiving surface for receiving said waterproof sheet The formed waterproof base material is provided separately from the waterproof sheet, and the waterproof base material is placed on a horizontal plane, and the surface of the sheet-like solar cell that is overlaid is inclined with respect to the horizontal plane. Form In the place where is formed on.

本発明の第１の特徴構成によれば、防水シートの縁部は、隣接させる別の防水シートと接合自在な接合部として構成してあるから、屋根上に当該太陽電池モジュールを設置するに際し、太陽電池モジュールの防水シート縁部を、隣接する別の防水シートと接合することができ、ソーラー発電と合わせて屋根の防水をも図ることが可能となる。
ここで言う「隣接させる別の防水シート」とは、隣接させる別の太陽電池モジュールと一体となった防水シートである場合のみならず、単なる防水シートである場合も含んでいる。
そして、設置対象の屋根が陸屋根であっても、前記防水下地材をその屋根上に設置するだけで、その上方に重なるシート状太陽電池の表面が傾斜状態となるように配置することができるから、手間を掛けずに、太陽電池上に雨水等の水滴が残り難い状態に設置することができる。
従って、太陽電池上の清掃等の手間を省いても、適切な発電量を維持し易く、メンテナンスに手間が掛かり難くなる。
そして、防水下地材は、太陽電池モジュールの下方に隠蔽状態に位置させることができるから、従来のように、大掛かりでゴツゴツした太陽電池モジュール設置用台を屋根上にわざわざ立設設置する必要が無く、目立ち難い状態で、確実に、太陽電池の上面傾斜状態を作り出すことができる。その結果、太陽電池モジュール設置作業における経済性と美観性とを向上させることができる。
また、防水シートと防水下地材とが嵌合形状に形成してあるから、接着をしなくても双方がずれ難く、接着剤や接着手間を省くことでコストダウンを図ることができる。
更には、防水シートと防水下地材とを接着していない状態においては、双方の分離も簡単に実施でき、防水シートと防水下地材との組み合わせを自由に変更して、例えば、発電量の大きい仕様の太陽電池付き防水シートに変更したり、強度の大きい防水下地材に変更したり、目的に合致した材質の各パーツに自由に変更することが可能となる。また、この利点は、太陽電池モジュールのメンテナンス時にも有効に利用することができる。 According to the first characteristic configuration of the present invention, since the edge of the waterproof sheet is configured as a joint that can be joined to another adjacent waterproof sheet, when installing the solar cell module on the roof, The waterproof sheet edge of the solar cell module can be joined to another adjacent waterproof sheet, and the roof can be waterproofed together with solar power generation.
Here, “another waterproof sheet to be adjacent” includes not only a waterproof sheet integrated with another adjacent solar cell module but also a simple waterproof sheet.
And even if the roof to be installed is a flat roof, it is possible to arrange so that the surface of the sheet-like solar cell overlying it is inclined only by installing the waterproof base material on the roof. It can be installed in a state where it is difficult for water droplets such as rainwater to remain on the solar cell without taking time and effort.
Therefore, even if the labor for cleaning the solar cell is omitted, it is easy to maintain an appropriate amount of power generation, and it is difficult to perform maintenance.
And since the waterproof base material can be positioned in a concealed state below the solar cell module, there is no need to install the solar cell module mounting base that is rugged on a large scale on the roof as in the past. Thus, it is possible to reliably create a state in which the upper surface of the solar cell is inclined in an inconspicuous state. As a result, economic efficiency and aesthetics in the solar cell module installation work can be improved.
In addition, since the waterproof sheet and the waterproof base material are formed in a fitting shape, it is difficult for the both to be displaced without bonding, and the cost can be reduced by omitting the adhesive and bonding effort.
Furthermore, in a state where the waterproof sheet and the waterproof base material are not bonded, both can be easily separated, and the combination of the waterproof sheet and the waterproof base material can be freely changed, for example, the amount of power generation is large. It is possible to change to a waterproof sheet with a solar cell of the specification, to a waterproof base material with high strength, or to freely change to each part of material that matches the purpose. Moreover, this advantage can be effectively utilized also at the time of the maintenance of a solar cell module.

本発明の第２の特徴構成は、前記鍔状部は、長手方向での中央部から両端側にかけてそれぞれ下り勾配に形成してあるところにある。 According to a second characteristic configuration of the present invention, the hook-shaped portion is formed in a descending gradient from the central portion in the longitudinal direction to both end sides .

本発明の第２の特徴構成によれば、本発明の第１の特徴構成による上述の作用効果を叶えることができるのに加えて、太陽電池シートの勾配によって鍔状部上に流下してきた水を、鍔状部の勾配に沿って速やかに排水することが可能となる。 According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to the first characteristic configuration of the present invention, water that has flowed down on the bowl-shaped portion due to the gradient of the solar cell sheet. and it is possible and quickly drained child along the gradient of the flange portion.

本発明の第３の特徴構成は、請求項１、２に記載の太陽電池モジュールの複数を、陸屋根上に複数列に並べて敷設された太陽電池モジュール敷設構造において、列内で隣接する太陽電池モジュールの鍔状部どうしを重ねた接合箇所は、隣接する列相互において列長手方向に位置ずれさせてあるところにある。 A third characteristic configuration of the present invention is a solar cell module laying structure in which a plurality of the solar cell modules according to claims 1 and 2 are arranged in a plurality of rows on a flat roof, and are adjacent in the row. joint of extensive flange portion with each other is in the in adjacent columns one another are allowed displaced in the column longitudinal rollers of.

本発明の第３の特徴構成によれば、本発明の第１、２の何れかの特徴構成による上述の作用効果を叶えることができるのに加えて、接合箇所の一個所での、前記鍔状部の重なり枚数をより少なくすることが可能となる。その結果、前記鍔状部どうしの重なり構造を単純化でき、より接合部分での防水性能の向上を図ることが可能となる。 According to the third characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effect according to any one of the first and second characteristic configurations of the present invention, the above- described flange It is possible to further reduce the number of overlapping overlapping portions. As a result, it is possible to simplify the overlapping structure of the hook-shaped portions, and it is possible to further improve the waterproof performance at the joint portion.

以下に本発明の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。   Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as in the conventional example indicate the same or corresponding parts.

図１は、本発明の太陽電池モジュールの一実施形態品（以後、太陽電池モジュールＭと言う）の複数を、デッキプレート１Ａで構成された陸屋根１上に並べて敷設してある状況を示すものである。   FIG. 1 shows a situation in which a plurality of solar cell modules according to an embodiment of the present invention (hereinafter referred to as solar cell module M) are laid side by side on a flat roof 1 composed of a deck plate 1A. is there.

前記太陽電池モジュールＭは、細長い矩形形状に形成してあり、屋根の平面視において、太陽電池モジュールＭの長手方向、及び、幅方向に沿って複数の太陽電池モジュールＭが並設されている。   The solar cell module M is formed in an elongated rectangular shape, and a plurality of solar cell modules M are arranged in parallel along the longitudinal direction and the width direction of the solar cell module M in a plan view of the roof.

前記太陽電池モジュールＭは、防水シート２Ａの表面に、シート状太陽電池（以後、単に太陽電池シートと言う）２Ｂが一体に設けて構成されているカバー部２と、その下方で前記防水シート２Ａを受ける防水シート受け面３ａを備えた防水下地材３とを備えて構成されている。
前記カバー部２と防水下地材３とは、きっちり嵌り合うように構成されている。 The solar cell module M includes a cover portion 2 in which a sheet-like solar cell (hereinafter simply referred to as a solar cell sheet) 2B is integrally provided on the surface of the waterproof sheet 2A, and the waterproof sheet 2A below the cover portion 2. And a waterproof base material 3 provided with a waterproof sheet receiving surface 3a.
The cover portion 2 and the waterproof base material 3 are configured to fit tightly.

前記カバー部２は、図２に示すように、防水シート２Ａ（例えば、塩化ビニル系シート）の中央部を膨出させて形成してあり、この膨出部２ａの上面に前記太陽電池シート２Ｂ（例えば、アモルファス太陽電池シート）が太陽光を受光できる状態に一体化された構造に形成してある。防水シート２Ａと太陽電池シート２Ｂとの一体化は、例えば、接着層を介して行われている。そして、太陽電池シート２Ｂからの電極線２Ｂａは、防水シート２Ａの該当部分を貫通して、カバー部２の裏面側に延出されている。
また、防水シート２Ａの前記膨出部２ａから外周側部分は鍔状に形成してあり、この鍔状部（接合部に相当）２ｂを、隣接させる別の防水シート２Ａと重ね合わせて接合することで一連の防水層が構成される。 As shown in FIG. 2, the cover portion 2 is formed by expanding a central portion of a waterproof sheet 2A (for example, a vinyl chloride sheet), and the solar cell sheet 2B is formed on the upper surface of the expanded portion 2a. (For example, an amorphous solar cell sheet) is formed in a structure integrated with a state in which sunlight can be received. The integration of the waterproof sheet 2A and the solar cell sheet 2B is performed, for example, via an adhesive layer. And electrode wire 2Ba from solar cell sheet 2B is penetrated through the applicable part of waterproof sheet 2A, and is extended to the back side of cover part 2.
Moreover, the outer peripheral side part from the said bulging part 2a of the waterproof sheet 2A is formed in the shape of a bowl, and this bowl-shaped part (equivalent to a junction part) 2b is overlapped and joined to another adjacent waterproof sheet 2A. Thus, a series of waterproof layers are formed.

前記膨出部２ａは、当該太陽電池モジュールＭを水平面上に設置した状態において、上方に重なる前記太陽電池シート２Ｂの表面が幅方向に下り勾配となる傾斜形状に形成してある（図３（ハ）参照）。この構成によって、陸屋根１上に設置した太陽電池モジュールＭの受光面に雨水等が溜まったままになって汚れの原因になることを防止することが可能となる。
また、前記鍔状部２ｂは、カバー部２の全周にわたって設けられているが、太陽電池モジュールＭの矩形長辺に位置する鍔状部２ｂは、長手方向での中央部から両端側にかけてそれぞれ下り勾配に形成してあり（図２参照）、太陽電池シート２Ｂの勾配によって鍔状部２ｂ上に流下してきた水を、鍔状部２ｂの勾配に沿って速やかに排水することが可能となる。 The bulging portion 2a is formed in an inclined shape in which the surface of the solar cell sheet 2B that overlaps with the solar cell module M on a horizontal plane has a downward slope in the width direction (FIG. 3 ( See c). With this configuration, it is possible to prevent rainwater or the like from remaining on the light receiving surface of the solar cell module M installed on the flat roof 1 and causing contamination.
Moreover, although the said hook-shaped part 2b is provided over the perimeter of the cover part 2, the hook-shaped part 2b located in the rectangular long side of the solar cell module M is each from the center part in a longitudinal direction to both end sides. It is formed in a downward gradient (see FIG. 2), and the water that has flowed down on the bowl-shaped part 2b by the gradient of the solar cell sheet 2B can be quickly drained along the gradient of the bowl-shaped part 2b. .

前記防水下地材３は、例えば、ポリプロピレン製の発泡断熱板で構成されており、長手方向の中間で分割されている。上述した通り、カバー部２の裏面形状に対応させた上面形状を備えた形状に形成されている。そして、カバー部２の膨出部２ａに対応する部分が、前記防水シート受け面３ａに相当し、当該太陽電池モジュールＭを水平面上に設置した状態において、上方に重なる前記太陽電池シート２Ｂの表面が幅方向に下り勾配となる傾斜形状に形成してある（図２参照）。
更に、カバー部２の鍔状部２ｂに対応する防水下地材部分は、前記防水シート受け面３ａより一段低く形成されており、太陽電池モジュールＭの矩形長辺に位置する鍔状部２ｂの下方に位置する部分は、長手方向での中央部から両端側にかけてそれぞれ下り勾配に形成されている（図２参照）。
また、太陽電池モジュールＭの矩形短辺に位置する部分には、前記太陽電池シート２Ｂの裏面に延出した電極線を収納できるように凹溝部３ｂを形成してある。この凹溝部３ｂは、隣接させる他の太陽電池モジュールの凹溝部３ｂと連通できるように設けられており、一連に設置された各太陽電池モジュールの電極線どうしを接続配線できるように構成されている（図４参照）。 The waterproof base material 3 is made of, for example, a foamed heat insulating plate made of polypropylene, and is divided in the middle in the longitudinal direction. As described above, the cover portion 2 is formed in a shape having an upper surface shape corresponding to the back surface shape. And the part corresponding to the swelling part 2a of the cover part 2 is equivalent to the said waterproof sheet receiving surface 3a, and the surface of the said solar cell sheet 2B which overlaps upwards in the state which installed the said solar cell module M on the horizontal surface Is formed in an inclined shape having a downward slope in the width direction (see FIG. 2).
Further, the waterproof base material portion corresponding to the hook-like portion 2b of the cover portion 2 is formed one step lower than the waterproof sheet receiving surface 3a, and is below the hook-like portion 2b located on the rectangular long side of the solar cell module M. The portions located at are respectively formed in a downward gradient from the central portion in the longitudinal direction to both end sides (see FIG. 2).
Further, a groove 3b is formed in a portion located on the rectangular short side of the solar cell module M so as to accommodate the electrode wire extending on the back surface of the solar cell sheet 2B. The concave groove portion 3b is provided so as to communicate with the concave groove portion 3b of another adjacent solar cell module, and is configured to connect and wire the electrode wires of the solar cell modules installed in series. (See FIG. 4).

前記陸屋根１への当該太陽電池モジュールＭの取り付け手順について説明する。
［１］デッキプレート１Ａ上に、各防水下地材３を隙間なく敷き並べる（図３（イ）参照）。
［２］隣接する長辺どうしの突合せ部上に、長手方向に間隔をあけて固定用金属ディスク板４をそれぞれ配置すると共に、突合せ部を貫通する状態にビスを挿通してデッキプレート１Ａに螺着することで金属ディスク板４を固定する（図３（ロ）参照）。この金属ディスク板４によって防水下地材３はデッキプレート１Ａに固定される。尚、前記金属ディスク板４の上面には、予め、ホットメルト接着層４ａが設けてある。
［３］それらの上から、防水下地材３の防水シート受け面３ａ上に膨出部２ａが重なるように前記カバー部２を被せる。
［４］隣接するカバー部２の鍔状部２ｂどうしを重ねて接着する（図３（ハ）参照）。
［５］前記鍔状部２ｂどうしの重ね部上から、前記金属ディスク板４を磁気誘導によって加熱し、前記ホットメルト接着層４ａを溶融させてカバー部２を金属ディスク板４に固定する。この前記金属ディスク板４によって、防水下地材３並びにカバー部２も陸屋根１に固定される。 A procedure for attaching the solar cell module M to the flat roof 1 will be described.
[1] The waterproof base materials 3 are laid out without gaps on the deck plate 1A (see FIG. 3 (A)).
[2] The fixing metal disk plates 4 are arranged on the abutting portions of adjacent long sides with a space therebetween in the longitudinal direction, and screws are inserted into the deck plate 1A so as to pass through the abutting portions. The metal disk plate 4 is fixed by wearing (see FIG. 3B). The waterproof base material 3 is fixed to the deck plate 1 </ b> A by the metal disk plate 4. A hot melt adhesive layer 4a is provided on the upper surface of the metal disk plate 4 in advance.
[3] Cover the cover part 2 so that the bulging part 2a overlaps the waterproof sheet receiving surface 3a of the waterproof base material 3 from above.
[4] The ridges 2b of the adjacent cover portions 2 are overlapped and bonded (see FIG. 3C).
[5] The metal disk plate 4 is heated by magnetic induction from above the overlapping portions of the bowl-shaped parts 2b, and the hot melt adhesive layer 4a is melted to fix the cover part 2 to the metal disk plate 4. With the metal disk plate 4, the waterproof base material 3 and the cover portion 2 are also fixed to the flat roof 1.

当該実施形態の太陽電池モジュールによれば、屋根上に設置するだけで、ソーラー発電と合わせて屋根の断熱・防水をも図ることが可能となる他、太陽電池上に雨水等の水滴が残り難い状態に設置することができるから、汚れが少なく、適切な発電量を維持し易いと共に、太陽電池上の清掃等のメンテナンスに手間が掛かり難くなる。
そして、このように設置された太陽電池モジュールは、陸屋根の低い位置に設置でき、従来の大掛かりでゴツゴツした太陽電池モジュール設置用台を屋根上にわざわざ立設設置するのに比べて美観性も向上するし、台風等による風圧による悪影響も受け難いという利点もある。 According to the solar cell module of the embodiment, it is possible to insulate and waterproof the roof together with solar power generation by simply installing it on the roof, and it is difficult for water drops such as rainwater to remain on the solar cell. Since it can be installed in a state, there is little contamination, it is easy to maintain an appropriate power generation amount, and maintenance such as cleaning on the solar cell is difficult.
And the solar cell module installed in this way can be installed at a low position on the flat roof, and the aesthetics are also improved compared to the conventional installation of a rugged solar cell module installation stand on the roof. In addition, there is an advantage that it is difficult to be adversely affected by wind pressure due to typhoons and the like.

〔別実施形態〕
以下に他の実施の形態を説明する。 [Another embodiment]
Other embodiments will be described below.

〈１〉 前記太陽電池モジュールＭは、先の実施形態で説明した形状や材質に限るものではなく、適宜変更することが可能である。例えば、シート状太陽電池２Ｂの電極線２Ｂａの配置は、先の実施形態のように、カバー部２の防水シート２Ａの下方側に配置されるものに限らない。例えば、図５に示すように、シート状太陽電池２Ｂと防水シート２Ａとの間に電極線収容の凹状部５を形成してあってもよく、この実施形態によれば、電極線２Ｂａが防水シート２Ａを貫通しないので、陸屋根としての防水性の維持が図り易いメリットがある。因みに、この実施形態によれば、前記凹状部５に対応する凹部を防水下地材３にも設けておく必要がある。また、凹状部５内に配線された電極線２Ｂａの周りには、コーキング材等を充填しておくことが好ましい。
〈２〉 前記太陽電池モジュールＭは、先の実施形態では、前記防水シート２Ａと前記防水下地材３とが別体のものを説明したが、例えば、これらを予め一体に形成してあるものであってもよい。
また、先の説明で挙げた鍔状部２ｂは、必ず傾斜状に形成することに限らず、平坦面として構成してあってもよい。この場合、陸屋根１の自然の水流れ勾配を利用して、鍔状部２ｂ自然勾配の姿勢となって水が溜まり難くなるように太陽電池モジュールＭの配置を計画すればよい。
〈３〉 前記太陽電池モジュールＭの設置構造は、先の実施形態で説明したものに限るものではなく、例えば、陸屋根１そのものがデッキプレート１Ａで構成されていることに替えて、折板屋根やプレキャスト板や鉄筋コンクリート造の屋根であってもよく、それらを含めて陸屋根という。
また、若干の水流れ勾配をもつ陸屋根上に太陽電池モジュールＭを設置するに当たっては、図６に示すように、シート状太陽電池２Ｂ表面から流下した水が、隣接する太陽電池モジュールＭ間に形成される水路６（前記鍔状部２ｂの上）に溜まったままになることを避ける意味で、屋根平面視における前記水路６の流下方向が、前記陸屋根１表面の勾配方向と直交しないように前記太陽電池モジュールＭを配置することが好ましい。但し、先の実施形態の太陽電池モジュールＭのように、鍔状部２ｂがもともと傾斜状に形成してある場合には、必ずしもこの限りではない。
〈４〉 前記太陽電池モジュールＭは、何れのものも同一寸法のものを並設状態に設置すること以外にも、例えば、図７に示すように、辺の長さの異なるものを用意しておき、それらを組み合わせて設置することも可能である。この場合、隣接する太陽電池モジュールＭのカバー部２どうしの重なり箇所の平面配置をずらすことができ、接合部分での、前記鍔状部２ｂの重なり枚数をより少なくすることが可能となる。その結果、前記鍔状部２ｂどうしの重なり構造を単純化でき、より接合部分での防水性能の向上を図ることが可能となる。
また、並設する各太陽電池モジュールＭの設置は、表面幅方向の勾配がすべて同じ方向に向く状態に設置することに限らず、例えば、図８に示すように、下り勾配が異なる方向（図によれば、平面視において１８０度ずれた方向）に向くように設置するものであってもよい。この場合、隣接する太陽電池モジュールＭ間に形成される水路６（鍔状部２ｂの上）の幅寸法を、下り勾配の上手側に位置する水路に比べて、下り勾配の下手側の位置する水路の方を、広幅になるように設置しておくことで、スムースに水を流下させることが可能となる。
一方、防水下地材３やカバー部２の陸屋根への固定は、先の実施形態では、金属ディスク板４を用いて行う例を説明したが、その形態に限るものではなく、例えば、図８に示すように、ホットメルト接着層４ａを上面に備えた帯状金属板１０で構成するものであってもよい。 <1> The solar cell module M is not limited to the shape and material described in the previous embodiment, and can be appropriately changed. For example, arrangement | positioning of electrode wire 2Ba of the sheet-like solar cell 2B is not restricted to what is arrange | positioned below 2 A of waterproof sheets of the cover part 2 like previous embodiment. For example, as shown in FIG. 5, a concave portion 5 for accommodating an electrode wire may be formed between the sheet-like solar cell 2B and the waterproof sheet 2A. According to this embodiment, the electrode wire 2Ba is waterproof. Since the sheet 2A is not penetrated, there is an advantage that it is easy to maintain waterproofness as a flat roof. Incidentally, according to this embodiment, it is necessary to provide the recessed part corresponding to the said recessed part 5 also in the waterproof base material 3. FIG. Further, it is preferable to fill a caulking material or the like around the electrode wire 2Ba wired in the concave portion 5.
<2> In the previous embodiment, the solar cell module M has been described in which the waterproof sheet 2A and the waterproof base material 3 are separate from each other. For example, they are integrally formed in advance. There may be.
Moreover, the hook-shaped part 2b mentioned above is not necessarily formed in an inclined shape but may be configured as a flat surface. In this case, the arrangement of the solar cell modules M may be planned using the natural water flow gradient of the flat roof 1 so that the trapezoidal portion 2b has a natural gradient posture and water does not easily accumulate.
<3> The installation structure of the solar cell module M is not limited to that described in the previous embodiment. For example, instead of the flat roof 1 itself being constituted by the deck plate 1A, It may be a precast board or a reinforced concrete roof, and it is called a flat roof.
Further, when installing the solar cell module M on a flat roof having a slight water flow gradient, water flowing down from the surface of the sheet-like solar cell 2B is formed between the adjacent solar cell modules M as shown in FIG. The flow direction of the water channel 6 in the plan view of the roof is not orthogonal to the gradient direction of the surface of the flat roof 1 in order to avoid remaining in the water channel 6 (on the bowl-shaped portion 2b). It is preferable to arrange the solar cell module M. However, this is not necessarily the case when the bowl-shaped portion 2b is originally formed in an inclined shape as in the solar cell module M of the previous embodiment.
<4> For the solar cell module M, in addition to installing the modules having the same dimensions in parallel, for example, as shown in FIG. 7, modules having different side lengths are prepared. It is also possible to install them in combination. In this case, the planar arrangement of the overlapping portions of the cover portions 2 of the adjacent solar cell modules M can be shifted, and the number of overlapping of the hook-shaped portions 2b at the joint portion can be further reduced. As a result, it is possible to simplify the overlapping structure of the hook-shaped portions 2b, and it is possible to further improve the waterproof performance at the joint portion.
Moreover, the installation of the solar cell modules M arranged side by side is not limited to the installation in a state in which the gradients in the surface width direction are all directed in the same direction. For example, as shown in FIG. According to the above, it may be installed so as to face in a direction shifted by 180 degrees in plan view. In this case, the width dimension of the water channel 6 (above the bowl-shaped portion 2b) formed between the adjacent solar cell modules M is located on the lower side of the downward gradient as compared to the water channel located on the upper side of the downward gradient. By installing the water channel so that it is wider, it is possible to smoothly flow down the water.
On the other hand, in the previous embodiment, the waterproof base material 3 and the cover 2 were fixed to the flat roof. However, the embodiment is not limited to this embodiment. For example, FIG. As shown, it may be constituted by a strip-shaped metal plate 10 having a hot melt adhesive layer 4a on its upper surface.

尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。   In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

本実施形態の太陽電池モジュールの設置状況を示す分解斜視図The exploded perspective view which shows the installation condition of the solar cell module of this embodiment 太陽電池モジュールを示す分解斜視図Exploded perspective view showing solar cell module 太陽電池モジュールの設置手順を示す説明図Explanatory drawing showing installation procedure of solar cell module 太陽電池モジュールの設置状況を示す断面図Sectional view showing the installation status of the solar cell module 別実施形態の太陽電池モジュールを示す分解斜視図Exploded perspective view showing a solar cell module of another embodiment 別実施形態の太陽電池モジュールの敷設構造を示す平面図The top view which shows the laying structure of the solar cell module of another embodiment 別実施形態の太陽電池モジュールの敷設構造を示す平面図The top view which shows the laying structure of the solar cell module of another embodiment 別実施形態の太陽電池モジュールの設置状況を示す分解斜視図The exploded perspective view which shows the installation condition of the solar cell module of another embodiment 従来の太陽電池モジュールの設置状況を示す説明図Explanatory drawing which shows the installation situation of the conventional solar cell module

符号の説明Explanation of symbols

１ 陸屋根
２ｂ 鍔状部（接合部に相当）
２Ａ 防水シート
２Ｂ シート状太陽電池
３ 防水下地材
３ａ 防水シート受け面
６ 水路
Ｍ 太陽電池モジュール 1 flat roof 2b bowl (corresponding to joint)
2A waterproof sheet 2B sheet-like solar cell 3 waterproof base material 3a waterproof sheet receiving surface 6 water channel M solar cell module

Claims (3)

防水シートの表面に、シート状太陽電池が一体に設けてある太陽電池モジュールであって、
前記防水シートの中央部が、上方に膨出した形状の膨出部として形成してあると共に、前記膨出部の上面に前記シート状太陽電池が一体化してあり、前記防水シートの前記膨出部より外周側部分が鍔状部として形成してあり、前記鍔状部は、隣接させる別の防水シートとの接合部として構成してあり、前記防水シートの裏面側には、前記防水シートを受ける防水シート受け面を備えると共に前記防水シートと嵌合する形状に形成された防水下地材が前記防水シートとは別体に設けてあり、前記防水下地材は、水平面上に設置した状態において、上方に重なる前記シート状太陽電池の表面が水平面に対して傾斜状態となる形状に形成してある太陽電池モジュール。 A solar cell module in which a sheet-like solar cell is integrally provided on the surface of the waterproof sheet,
The central portion of the waterproof sheet is formed as a bulging portion having a shape bulging upward, and the sheet-like solar cell is integrated on the upper surface of the bulging portion, and the bulging of the waterproof sheet the outer peripheral portion than part is Yes formed as the flange portion, the flange portion is Yes constructed as junction with another tarpaulin to be adjacent to the rear surface side of the tarpaulin, the tarpaulin the waterproof sheet receiving surface comprises Rutotomoni the waterproof sheet and the mating waterproof base material the waterproof sheet formed in a shape to receive a is provided with separately, the waterproof base sheet was placed on a horizontal plane The solar cell module in which the surface of the said sheet-like solar cell which overlaps in the state is formed in the shape which becomes an inclined state with respect to a horizontal surface. 前記鍔状部は、長手方向での中央部から両端側にかけてそれぞれ下り勾配に形成してある請求項１に記載の太陽電池モジュール。 2. The solar cell module according to claim 1, wherein each of the hook-shaped portions is formed in a downward gradient from a central portion in a longitudinal direction to both end sides . 請求項１、２に記載の太陽電池モジュールの複数を、陸屋根上に複数列に並べて敷設された太陽電池モジュール敷設構造であって、  A solar cell module laying structure in which a plurality of the solar cell modules according to claim 1 or 2 are laid in a plurality of rows on a flat roof,
列内で隣接する太陽電池モジュールの鍔状部どうしが重なる接合箇所は、隣接する列相互において列長手方向に位置ずれさせてある太陽電池モジュール敷設構造。  The solar cell module laying structure in which the joint portions where the ridges of adjacent solar cell modules overlap in a row are displaced in the row longitudinal direction between adjacent rows.
JP2007289868A 2007-11-07 2007-11-07 Solar cell module and laying structure thereof Expired - Fee Related JP5027621B2 (en)

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