JP2005098084A - Photovoltaic power generation system in sheet waterproofing structure, and photovoltaic power generation panel for sheet waterproofing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photovoltaic power generation system in a sheet waterproofing structure with superior waterproofing property, durability, and power generation efficiency, allowing easy construction work and maintenance inspection work. <P>SOLUTION: The photovoltaic power generation panel 10 is installed in the sheet waterproofing structure wherein a resin waterproofing sheet 5 is partially fixed to a roof backing 1 via a sheet joining plate 2 made of a resin covered steel plate. The panel 10 is formed by filling an adhesive 14 between a substrate 11 and a top face protecting plate 13 so as to seal a photovoltaic cell module 12 in a state of arranging the transparent top face protecting plate 13, via the photovoltaic cell module 12 made of crystalline silicon, on the steel plate made substrate 11 provided with a resin bottom face adhesive layer 15 in a bottom face side. Corner parts of the substrate 11 in the panel 10 are welded to a sheet fixing part via the bottom face adhesive layer 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a photovoltaic power generation system in a waterproof sheet structure such as a waterproof sheet roof, which is waterproofed with a waterproof sheet, and a waterproof sheet photovoltaic panel used in the system.

  When a solar power generation system is adopted in a building, it is common to fix a stand on the roof surface of the building and attach a solar power generation panel on the stand. However, in this panel mounting structure, a fixing tool such as an anchor nail is passed through the roofing material and fixed to the base for fixing the gantry. Not only is the panel installation work difficult to perform, but the number of parts such as a gantry is large, which makes the work large-scale and makes the installation work even more difficult.

  Therefore, in the following Patent Document 1, a waterproof sheet for waterproof construction is incorporated into a solar cell, a waterproof sheet integrated with a solar cell is produced, and the waterproof sheet is applied to the roof base, thereby waterproofing the sheet. At the same time, techniques for installing solar cells have been proposed.

Patent Document 2 below discloses a technique for installing a solar cell simultaneously with roofing by attaching a solar cell to a roof material, producing a roof material with a solar cell, and constructing the roof material on a roof base. Proposed.
Japanese Patent Laid-Open No. 11-50607 Japanese Patent Laid-Open No. 11-14060

  However, in the solar cell integrated waterproof sheet shown in Patent Document 1, it is necessary to use a soft solar cell module such as amorphous silicon so as not to impair the softness as a characteristic of the waterproof sheet. This amorphous silicon has a problem that power generation performance is inferior because photoelectric conversion efficiency is lower than that of hard crystalline silicon.

  On the other hand, since the thing shown in patent document 2 is laying | laying on a roof base | substrate without a gap | interval, connecting a roof material with many solar cells between adjacent roof materials, a roof material of Installation and connection must be performed in parallel, making the construction work complicated and difficult, and there is still a problem in water tightness between the roofing materials, and there was a problem that sufficient waterproofness could not be obtained .

  Furthermore, since a roof is formed by connecting and integrating a large number of roofing materials, the roofing material and the solar cell maintenance inspection work cannot be performed separately, and the inspection items become complicated. There is also a problem that the work cannot be done easily.

  The present invention solves the above-mentioned problems of the prior art, and can perform construction work and maintenance inspection work after construction accurately and easily, and also has excellent waterproofness and durability, and solar light in a waterproof sheet structure having high power generation efficiency. An object is to provide a power generation system and a photovoltaic panel for waterproofing a sheet.

  In order to achieve the above object, the present invention is summarized as follows.

[1] A sun in a sheet waterproof structure in which a waterproof sheet made of a synthetic resin is partially fixed on a building frame via a sheet bonding plate, and a photovoltaic power generation panel is installed on the waterproof sheet A photovoltaic system,
In the solar power generation panel, a transparent upper surface protective plate is disposed on a metal substrate having a lower surface adhesive layer made of a thermoplastic synthetic resin on a lower surface side through a photovoltaic module made of crystalline silicon. The adhesive is formed between the substrate and the upper surface protection plate by being filled in an aspect for sealing the photovoltaic module,
When the fixing portion with the sheet bonding plate in the waterproof sheet is a sheet fixing portion,
A photovoltaic power generation system in a sheet waterproof structure, wherein an edge of a substrate in the photovoltaic power generation panel is bonded and fixed to the sheet fixing portion via the lower surface adhesive layer.

  [1a] The photovoltaic power generation system according to item 1, wherein the lower surface adhesive layer is made of the same type of synthetic resin composition as the waterproof sheet.

[2] The photovoltaic power generation panel has a polygonal shape in plan view.
The photovoltaic power generation system in the waterproof sheet structure according to the preceding item 1, wherein corner portions of the photovoltaic power generation panel are bonded and fixed to the sheet fixing portion via the lower surface adhesive layer.

[3] A plurality of the sheet bonding plates are arranged at predetermined intervals,
A plurality of the photovoltaic panels are arranged in a plane on the waterproof sheet,
The sun in the sheet waterproof structure according to the preceding item 1 or 2, wherein two or more corresponding edges of the plurality of neighboring solar panels are bonded and fixed to one sheet fixing portion via the lower surface adhesive layer, respectively. Photovoltaic system.

  [3a] The photovoltaic power generation system according to item 3, wherein the photovoltaic power generation panel has a rectangular shape in plan view.

[4] A non-waterproof area where a waterproof sheet is not provided is provided in a part of the building housing,
The solar power generation panel is disposed on the waterproof sheet so as to close the non-waterproof area, and the outer peripheral edge of the lower surface side of the solar power generation panel is interposed between the lower surface adhesive layer and the non-waterproof area of the waterproof sheet. 4. The photovoltaic power generation system in the waterproof sheet structure according to any one of the preceding items 1 to 3, which is joined and fixed to the peripheral edge in a watertight state.

[5] While the belt-shaped waterproof sheet is laid in a grid pattern vertically and horizontally on the building frame,
The vertical and horizontal waterproof sheets are joined and fixed at the sheet intersection where the vertical and horizontal waterproof sheets intersect,
The sheet crossing portion is fixed to the sheet joining plate and configured as the sheet fixing portion,
The photovoltaic power generation system in the sheet waterproof structure according to the item 4, wherein the non-waterproof region is formed in a portion surrounded by vertical and horizontal waterproof sheets.

  [6] The photovoltaic power generation system in the sheet waterproof structure according to any one of the preceding items 1 to 5, wherein the upper surface protection plate is configured with a hard plate.

  [6a] The photovoltaic power generation system in the sheet waterproof structure according to the above item 6, wherein the upper surface protection plate is configured with a glass plate.

  [7] The solar power generation system in the sheet prevention structure according to the above item 6 or 7, wherein the upper surface protection plate is configured with a synthetic resin plate (sheet, film).

  [7a] The solar power generation system in the sheet waterproof structure according to the item 7, wherein the upper surface protection plate is made of a fluorine-based resin.

  [7b] The sheet according to any one of 1 to 7 above, wherein the sheet joining plate is formed of a resin-coated metal plate in which a surface layer made of a thermoplastic synthetic resin is formed on at least an upper surface (one surface) of the metal plate. Solar power generation system in a waterproof structure.

  [7c] The solar power generation system in the waterproof sheet structure according to any one of items 1 to 7, wherein the sheet bonding plate is formed of a resin-coated steel plate such as a vinyl chloride-coated steel plate.

  [7d] The photovoltaic power generation system in the sheet waterproof structure according to any one of the preceding items 1 to 7, wherein the sheet bonding plate is configured by a disk-shaped member called a sheet fixing disk.

  [7e] The sheet waterproofing sheet according to item 7d, wherein the sheet bonding plate is firmly fixed to the building case by passing a fixing tool such as a fixing nail through the center hole or the like and fixed to the building case. Solar power system in structure.

  [7f] The photovoltaic power generation system in the sheet waterproof structure according to any one of 1 to 7 above, wherein the sheet bonding plate has a shape such as a polygonal shape or a belt shape.

[8] A photovoltaic power generation panel for waterproofing seats installed on a building frame via a synthetic resin waterproof sheet,
An adhesive is filled between the substrate and the upper surface protection plate in a state of sealing the photovoltaic cell module in a state where a transparent upper surface protection plate is disposed on the metal substrate via a photovoltaic cell module made of crystalline silicon. The substrate, the photovoltaic module and the upper surface protection plate are laminated and integrated,
A sheet waterproofing photovoltaic panel, comprising a lower surface adhesive layer made of a thermoplastic synthetic resin for bonding and fixing to the surface of the waterproof sheet on the lower surface side of the substrate.

[8a] The sheet waterproof solar power generation panel according to item 8 having a rectangular shape in plan view [8b] The sheet waterproof solar power generation panel according to item 8 above, wherein the upper surface protection plate is formed of a hard plate. 8c] The photovoltaic panel for sheet waterproofing according to item 8 above, wherein the upper surface protection plate is configured by a soft plate. In the present invention, the sheet bonding plate and the waterproof sheet are fixed, the waterproof sheets are fixed to each other, the sun The lower surface adhesive layer of the photovoltaic panel and the waterproof sheet are fixed by a welding process. As the welding treatment, for example, a welding treatment by applying a solvent, a hot air, dielectric heating, a fusion (welding) treatment by induction heating, or an adhesion treatment by applying an adhesive is used.

  In addition, the present invention can be combined with the above essential configuration and suitable configuration as appropriate to form one invention.

  According to the invention of [1], the photovoltaic panel is installed and fixed on the waterproof sheet by bonding and fixing the lower surface adhesive layer to the waterproof sheet, and the photovoltaic panel is a method similar to the sheet waterproof method. It can be constructed with. For this reason, the installation work of the photovoltaic power generation panel can be smoothly performed following the sheet construction work, and the panel installation work can be efficiently and easily performed.

  Moreover, in this invention, since the edge of a photovoltaic power generation panel is fixed to the part (sheet fixing | fixed part) fixed to the sheet joining board in a waterproof sheet, a photovoltaic power generation panel is interposed via a sheet joining board. It can be fixed to the building frame, and the photovoltaic power generation panel can be attached in a stable state.

  Furthermore, in the present invention, since the photovoltaic power generation panel uses crystalline silicon as its photovoltaic module, it can efficiently perform photoelectric conversion compared to the case of using amorphous silicon, and the like. Power generation efficiency can be obtained.

  Furthermore, in the present invention, since the photovoltaic power generation panel uses a highly rigid steel plate as its substrate, it can also prevent bending deformation due to external stress, etc., can more reliably prevent damage to the photovoltaic module, etc., and is more durable. Can be improved.

  Moreover, in this invention, since a waterproof sheet is constructed to a building frame and a photovoltaic power generation panel is installed on the sheet, sufficient waterproofness can be obtained with a waterproof sheet or the like.

  Furthermore, in this invention, since a photovoltaic power generation panel is comprised separately from roof materials, such as a waterproof sheet, the maintenance inspection work of a photovoltaic power generation panel and a waterproof sheet can be performed separately, respectively. For this reason, each inspection does not become complicated, and the maintenance inspection work can be performed accurately and easily.

  In the present invention, when a plurality of photovoltaic power generation panels are installed, a gap is formed between adjacent photovoltaic power generation panels. Thus, by installing each panel in an independent state, it is possible to easily perform maintenance and inspection of each panel and the waterproof sheet.

  According to the invention of [1a], the photovoltaic power generation panel can be bonded and fixed to the waterproof sheet in a more stable state with higher strength by adhesion, welding or the like.

  According to the invention of [2], the photovoltaic power generation panel can be installed on the waterproof sheet in a stable state with higher strength.

  According to the invention of [3], a plurality of photovoltaic power generation panels can be arranged in an orderly manner, and a good aesthetic appearance can be obtained.

  According to the invention [3a], a plurality of photovoltaic power generation panels can be arranged efficiently, the panel installation area can be increased, and the power generation efficiency can be further improved.

  According to the invention of [4], the construction area of the waterproof sheet can be reduced, the construction work can be performed efficiently and easily, and as a result, the construction work of the entire photovoltaic power generation system can be performed easily. Furthermore, since the sheet construction area is reduced, the amount of sheet used is also reduced, and the cost can be reduced by reducing the material cost.

  According to the invention of [5], the construction work of the waterproof sheet can be performed efficiently and smoothly.

  According to the invention of [6], it is possible to effectively prevent the panel surface from being scratched or clouded and to improve the durability. Furthermore, the surface protection plate can be prevented from being deformed or damaged by a collision with flying objects, the internal photovoltaic cell module can be reliably prevented from being damaged, and the durability can be further improved.

  In the invention of [6a], the glass plate is excellent in impact resistance, scratch resistance, etc., and has little chemical alteration and excellent chemical resistance, so that the panel surface is more reliably damaged and cloudy. Can be prevented, and the durability can be further improved.

  According to the invention of [7], the light resistance, transparency, transparency and molding processability (particularly the end molding processability) of the surface protective layer can be sufficiently secured, and the weight can be reduced.

  According to the inventions [7b] and [7c], the waterproof sheet can be reliably bonded and fixed to the sheet bonding plate fixed to the building frame by welding or the like.

  According to the invention of [8], it is possible to provide a photovoltaic power generation panel having the same function and effect as described above.

  FIG. 1 is a cross-sectional view showing a photovoltaic power generation panel (10) used in the embodiment of the present invention. As shown in the figure, this solar power generation panel (10) includes a substrate (11), a photovoltaic cell module (12) laminated on the upper surface side of the substrate (11), and a laminated surface on the upper surface side of the photovoltaic cell module (12). And a transparent upper surface protective plate (13) and a lower surface adhesive layer (15) laminated on the lower surface side of the substrate (11). In FIG. 1, the size in the thickness direction is shown larger than the size in the width direction (length direction) for easy understanding of the invention.

  The substrate (11) is made of a metal plate such as a steel plate or a stainless steel plate. In particular, steel plates are highly rigid, making them ideal as panel substrates, protecting the photovoltaic module (12) being held from stresses such as bending, and ensuring that the photovoltaic module (12) is not damaged. Can be prevented. Furthermore, the board | substrate (11) made from a steel plate is excellent also in adhesiveness with the below-mentioned lower surface adhesive layer (15), and can hold | maintain and fix an adhesive layer (15) reliably.

  In the present invention, the substrate (11) is not limited to the steel plate described above, and any substrate can be used as long as it is made of metal.

  When using a steel plate as a board | substrate (11), it is good to set the thickness to 0.4-1.2 mm. That is, if it is too thin, it will be difficult to ensure sufficient rigidity, and conversely if it is too thick, the overall weight of the panel may be increased, and workability may be reduced.

  Crystalline silicon is used for the photovoltaic module (12). As this silicon, either a single crystal type or a polycrystalline type can be used. In short, any silicon having a crystal structure can be used.

  This crystalline silicon has higher photoelectric conversion efficiency and higher power generation efficiency than, for example, amorphous silicon. For example, even when the panel construction area is small, a large amount of power generation can be secured. .

  The upper surface protective layer (13) is used as a protective member for crystalline silicon as the photovoltaic module (12), and can protect the photovoltaic module (12) from external stresses such as impact, thereby improving durability. Can be made.

  As the upper surface protective layer (13), either a soft plate or a hard plate can be used. For example, considering the ease of construction due to weight reduction and ease of end face processing (formability, workability, etc.), it is better to use a resin plate (sheet, film) that has softness, especially weather resistance and transparency. From the standpoint, it is more desirable to use a fluorine-based resin film such as an ethylene tetrafluoroethylene copolymer (ETFE) resin film, a vinyl fluoride (PVF) resin film, a vinylidene fluoride (PVDF) resin film. In addition, a polyvinyl chloride (PVC) resin film, an acrylic film, a polycarbonate (PC) film, a polyethylene terephthalate (PET) film (including non-amorphous ones) and the like can also be employed.

  The resin film as the upper surface protective layer (13) has a thickness of 100 to 500 μm, preferably 150 to 300 μm. That is, when this thickness is used, it is possible to reliably improve the workability by reducing the weight while reliably protecting the protective characteristics.

  Further, as the upper surface protective layer (13), a hard layer may be used. That is, when a hard material is used, the surface is difficult to be scratched, clouding can be effectively prevented, and durability can be improved more reliably.

  As the hard upper surface protective layer (13), for example, a glass plate or a synthetic resin plate such as a vinyl chloride resin plate, an acrylic resin plate, a polycarbonate resin plate, or an amorphous polyester resin plate can be used. . Among them, the glass plate is excellent in impact resistance, scratch resistance, and the like, and has little chemical alteration and excellent chemical resistance. Therefore, the above protective properties can be improved.

  When a glass plate is used as the upper surface protective layer (13), a layer having a thickness of 2.0 mm or more is preferably used. That is, by adjusting to this thickness, sufficient strength can be obtained, and scratch resistance and the like can be further improved. In addition, when using a synthetic resin board as an upper surface protective layer (13) and providing hardness, it is good to set thickness to 0.5 mm or more.

  The lower surface adhesive layer (15) is for bonding and fixing the substrate (11), that is, the panel (10) to the waterproof sheet (5), and is made of a thermoplastic synthetic resin film. The adhesive layer (15) may be any resin as long as it is made of a resin that can be adhered to the waterproof sheet (5), but is compatible with the waterproof sheet (5), particularly the waterproof sheet. When using what consists of the same composition as (5), adhesive strength with a waterproof sheet (5) can fully be ensured, and the attachment strength of a panel (10) can be improved. For example, when the waterproof sheet (5) is made of a polyvinyl chloride resin-based composition, the lower surface adhesive layer (15) is preferably composed of a polyvinyl chloride resin-based composition.

  In order to laminate and adhere the lower surface adhesive layer (15) to the substrate (11), a resin film as the adhesive layer (15) is fused and fixed to a metal plate such as a steel plate as the substrate (11) by a heat laminating method. Thus, the substrate (11) with the adhesive layer can be continuously produced by this thermal laminating method.

  Moreover, in this embodiment, a filling adhesive (14) is used to laminate and integrate the substrate with adhesive layer (11), the photovoltaic module (12), and the surface protection plate (13). That is, with the substrate (11), the photovoltaic module (12), and the surface protection plate (13) laminated in this order, the photovoltaic module (12) is hermetically sealed between the substrate (11) and the surface protection plate (13). The adhesive (14) is filled in the mode to be sealed. Specifically, the adhesive (14) is applied to the upper surface of the substrate (11), and the adhesive (14) is applied to the lower surface of the surface protection plate (13) to protect the upper surface and the surface of the substrate (11). The photovoltaic module (12) is sandwiched between the lower surface of the plate (13), and in this state, is held under pressure until the adhesive (14) is cured. Thereby, a board | substrate with an adhesive layer (11), a photovoltaic cell module (12), and a surface protection board (13) are connected and integrated in the lamination | stacking state, and a photovoltaic power generation panel (10) is produced.

  Here, as the filling adhesive (14), an appropriate adhesive may be selected in consideration of adhesiveness to the substrate (11), the photovoltaic module (12), and the upper surface protective plate (13). An epoxy resin-based adhesive used as an adhesive material can be suitably used.

  In the first embodiment, the solar power generation system in the waterproof sheet structure is constructed by installing the solar power generation panel (10) having the above-described configuration subsequent to the waterproof sheet construction.

  That is, as shown in FIGS. 2 to 4, a plurality of disc-shaped sheet joining plates (2) are arranged at predetermined positions on the roof base (1) as a building frame, and a fixing tool such as a fixing nail (3). Is inserted into the center hole of the joining plate (2) and driven into the roof base (1) to fix each sheet joining plate (2) on the roof base (1).

  Here, in this embodiment, the roof substrate (1) is typically composed of a concrete plate such as reinforced concrete (RC), lightweight foamed concrete (ALC), precast concrete (RC), etc. Is not particularly limited. Further, the roof to which the present invention is applied may be an inclined roof shape having a gradient or a horizontal flat roof shape without a gradient, and the shape is not particularly limited.

  The sheet bonding plate (2) is formed of a resin-coated metal plate, for example, a resin-coated steel plate, in which at least one surface (upper surface) of the metal plate is coated with resin. The resin coated on the sheet bonding plate (2) is preferably composed of a resin composition having the same composition as the waterproof sheet (5) in consideration of compatibility (adhesiveness) with the waterproof sheet (5). . For example, when the waterproof sheet (5) is composed of a polyvinyl chloride resin-based composition, the coating resin for the sheet bonding plate (5) is preferably composed of a polyvinyl chloride resin-based composition.

  Next, the synthetic resin waterproof sheet (5) is laid on the entire area of the roof base (1) so as to cover each sheet bonding plate (2).

  Here, as the waterproof sheet (5), one made of a polyvinyl chloride resin-based composition can be suitably used, but in addition to that, one made of a polyolefin resin-based composition can also be used.

  After laying the waterproof sheet (5), a solvent is injected between the resin coating layer of the sheet bonding plate (2) and the waterproof sheet (5) to weld and bond both (2) and (5). In this way, a part of the waterproof sheet (5) is fixed to the roof base (1) through the sheet joining plate (2), and the remaining many parts are released.

  Here, the method for joining and fixing the sheet joining plate (2) and the waterproof sheet (5) is not limited to the above-described solvent welding, and is fused (welded) using hot air, dielectric heating, induction heating or the like. A method, a method of bonding using an adhesive, and the like can also be used.

  The solar power generation panel (10) is installed on the waterproof sheet (5) thus constructed. The photovoltaic power generation panel (10) installed here is formed in a rectangular shape in plan view, and a corner (edge) of the panel (10) is attached to a sheet bonding plate (5) in the waterproof sheet (5). 2) Placed in the portion (sheet fixing portion) fixed to 2), a solvent is injected between the sheet fixing portion and the lower surface adhesive layer (15) of the solar power generation panel (10), and the solar power generation panel ( 10) One corner is welded and joined to the sheet fixing portion of the waterproof sheet (5). The photovoltaic power generation panel (10) is not limited to only one corner, and the entire outer peripheral edge of the lower surface adhesive layer (15) may be joined and fixed continuously to the waterproof sheet (5).

  Here, as a method for joining and fixing the lower surface adhesive layer (15) and the waterproof sheet (5), a method using heat or an adhesive may be employed as described above.

  In this way, a large number of photovoltaic panels (10) are installed and fixed on the waterproof sheet (5) with a slight gap between adjacent panels (10), and the photovoltaic system of the first embodiment Is formed.

  In this embodiment, a photovoltaic power generation panel is provided by providing an adhesive layer (15) on the lower surface side of the photovoltaic power generation panel (10) and welding and integrating the adhesive layer (15) to the waterproof sheet (5). (10) is fixed on the waterproof sheet (5). That is, since the photovoltaic power generation panel (10) can be constructed by the same method as the sheet waterproofing construction method, the installation operation of the photovoltaic power generation panel (10) can be performed smoothly following the sheet construction work. For this reason, this embodiment can perform the installation operation | work of a panel (10) efficiently and simply compared with the case where a photovoltaic power generation panel is mechanically fixed using a mount frame etc., for example.

  Moreover, since the edge of a photovoltaic power generation panel (10) is welded to the part fixed to the sheet joining plate (2) in a waterproof sheet (5), a photovoltaic power generation panel (10) is attached to a sheet joining plate ( It can be fixed to the roof base (1) via 2), and the photovoltaic power generation panel (10) can be attached in a stable state with sufficient strength.

  Furthermore, in this embodiment, since the corner | angular part of four photovoltaic power generation panels (10) of the periphery (neighborhood) is fixed with respect to one sheet joining board (2), many photovoltaic power generation is carried out. The panels (10) can be installed in an orderly manner, and the aesthetic appearance can be improved.

  Moreover, since the photovoltaic power generation panel (10) of this embodiment uses crystalline silicon as the photovoltaic module (12), compared with the case where amorphous silicon is used, photoelectric conversion is efficiently performed. It can be performed and high power generation efficiency can be obtained.

  Moreover, since the photovoltaic module (12) is protected by the surface protection plate (13), the photovoltaic panel (10) of the present embodiment can surely prevent the module (12) from being damaged, and is further durable. Can be improved.

  Furthermore, since the solar power generation panel (10) of this embodiment uses a highly rigid steel plate or the like as the substrate (11), it can prevent bending deformation due to external stress or the like, and damage the photovoltaic module (12). It can prevent more reliably and can improve durability further.

  Moreover, in this embodiment, since a waterproof sheet (5) is constructed over the entire upper surface of the roof base (1) and a panel (10) is installed on the sheet (5), the waterproof sheet (5) Sufficient waterproofness can be obtained.

  Moreover, in this embodiment, since a maintenance check can be separately performed with respect to a photovoltaic power generation panel (10) and a waterproof sheet (5), the maintenance check work can be performed efficiently and smoothly.

  Furthermore, in this embodiment, since the clearance gap is formed between each photovoltaic power generation panel (10), the maintenance inspection of each panel (10) and a waterproof sheet (5) is carried out by utilizing the clearance gap. It can be performed even more efficiently.

  5 and 6 are views showing a photovoltaic power generation system according to the second embodiment of the present invention. As shown to both figures, in this 2nd Embodiment, the sheet joining board (2) is attached to the position corresponding to the four corners of the photovoltaic power generation panel (10) installed, and each photovoltaic power generation panel The four corners of (10) are welded and fixed to the sheet fixing part, respectively.

  Since other configurations are the same as those of the first embodiment, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  In the solar power generation system of this embodiment, similar to the first embodiment, the same operational effects can be obtained, and furthermore, all the four corners of each solar power generation panel (10) are sheet-bonded plates (2). Since it fixes to a roof base | substrate (1) via, each panel (10) can be attached with much higher intensity | strength.

  7 and 8 are views showing a photovoltaic power generation system according to the third embodiment of the present invention. As shown in both figures, this system is greatly different from the first and second embodiments in that strip-shaped waterproof sheets (5a) and (5b) are laid in a lattice pattern. That is, the waterproof sheets (5a) along the vertical direction are laid in parallel in the horizontal direction at predetermined intervals, and the waterproof sheets (5b) along the horizontal direction are laid in parallel in the vertical direction at predetermined intervals. In addition, before constructing the waterproof sheets (5a) and (5b), the sheet joining plate (2) is fixed to the nail in advance at the intersection of the vertical and horizontal waterproof sheets (5a) and (5b) on the roof base (1). It is fixed by (3).

  The vertical and horizontal waterproof sheets (5a) and (5b) are welded and joined to each other at a crossing portion with a solvent, and the crossing portions are welded and joined to the sheet joining plate (2) with a solvent. Thus, the waterproof sheets (5a) and (5b) are arranged in a lattice pattern, and the waterproof sheets (5a) and (5b) are not arranged between the vertical and horizontal waterproof sheets (5a) and (5b), and the base (2) is exposed. A rectangular non-waterproof area (6) is formed.

  Next, the outer peripheral edge of the rectangular photovoltaic power generation panel (10) is placed on the waterproof sheet (5a) (5b) so as to close the non-waterproof region (6) at the middle of the back surface. At this time, the four corner portions of the photovoltaic power generation panel (10) are respectively arranged on portions (sheet fixing portions) corresponding to the sheet bonding plate (2) at the intersecting portions of the vertical and horizontal waterproof sheets (5a) and (5b). .

  Subsequently, the lower surface adhesive layer (15) at the four corners of the photovoltaic power generation panel (10) is welded and joined to the sheet fixing portion with a solvent, and is continued along the outer peripheral edge portion of the panel (10). The adhesive layer (15) is welded and joined to the waterproof sheets (5a) and (5b). Thereby, watertightness between the outer peripheral edge of the photovoltaic power generation panel (10) and the outer peripheral edge of the non-waterproof area (6) in the waterproof sheets (5a) and (5b) is achieved, and the non-waterproof area (6). Waterproofing is achieved.

  In this way, a large number of photovoltaic power generation panels (10) are installed so as to block all the non-waterproof areas (6), and the waterproofing of the entire roof substrate (1) is achieved by the panels (10) and the waterproof sheet (5). At the same time, a solar power generation system is constructed.

  Needless to say, a method for joining and fixing the waterproof sheets (5a) and (5b), a method for joining and fixing the waterproof sheets (5a) and (5b) to the sheet joining plate (2), a photovoltaic power generation panel (10) and a waterproof sheet ( The method of joining and fixing to 5a and 5b is not limited to a welding process using a solvent, and a fusion (welding) process by heating, an adhesive process using an adhesive, or the like can also be used.

  Since other configurations are the same as those in the above embodiment, the same or corresponding parts are denoted by the same or corresponding reference numerals, and redundant description is omitted.

  According to the solar power generation system of the third embodiment, the same operational effects can be obtained as described above, and furthermore, the waterproof sheets (5a) and (5b) are constructed in a lattice shape. Compared to the case where a waterproof sheet is applied to the entire surface of the base, the sheet installation area can be reduced, the installation work can be performed efficiently and easily, and the installation work of the entire photovoltaic power generation system can be easily performed. Can do. Furthermore, since the sheet construction area is small, the amount of sheet used is also reduced, and the cost can be reduced by reducing the material cost.

  FIG. 9 is a plan view showing a photovoltaic power generation system according to the fourth embodiment of the present invention. As shown in the figure, in this solar power generation system, a solar power generation panel (20) having a trapezoidal shape in plan view is used.

  That is, as in the third embodiment, vertical and horizontal waterproof sheets (5a) and (5b) are laid in a lattice pattern on the roof base (1), and the intersections of the waterproof sheets (5a) and (5b) are provided. Then, it is welded and joined to the sheet joining plate (2) fixed in advance to the roof base (1).

  Furthermore, the trapezoidal photovoltaic power generation panel (20) is placed on the waterproof sheets (5a) and (5b) so as to close the non-waterproof area (6) at the back surface intermediate area. In this state, the four corners of the photovoltaic power generation panel (20) are welded and fixed to the intersecting portions (sheet fixing portions) of the waterproof sheets (5a) and (5b), and the outer peripheral edge portion of the panel (20) is continuously provided. The waterproof sheets (5a) and (5b) are welded and joined.

  In this way, a large number of photovoltaic power generation panels (20) are installed and fixed so that the non-waterproof area (6) is sealed by each panel (20). At this time, by arranging the adjacent panels (20) upside down, the installation efficiency of the panels (20) is increased and the power generation efficiency is improved.

  Since other configurations are the same as those in the above embodiment, the same or corresponding parts are denoted by the same or corresponding reference numerals, and redundant description is omitted.

  In this embodiment, similar to the above, the same operational effects can be obtained, and furthermore, since the trapezoidal photovoltaic power generation panel (20) is installed, the panel (20) is arranged in a novel arrangement. It is possible to form a photovoltaic power generation system that is excellent in design.

  In addition, in the said embodiment, although the shape uses a rectangular shape or trapezoid as a photovoltaic power generation panel, the shape of a photovoltaic power generation panel is not specifically limited by this invention. For example, a triangular shape or a polygonal shape having a pentagon or more, a circular shape, an elliptical shape, or a combined shape thereof can be used.

  Moreover, in the said embodiment, although the case where a photovoltaic power generation panel was installed in the roof of a building was demonstrated, in this invention, the installation location of a photovoltaic power generation panel is not specifically limited, For example, on the side wall surface etc. of a building You may make it install.

It is sectional drawing which shows the solar power generation panel applied to the solar power generation system in the sheet | seat waterproof structure of 1st Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the solar power generation system of 1st Embodiment. It is sectional drawing which shows the solar energy power generation system of 1st Embodiment. It is a top view which shows the solar energy power generation system of 1st Embodiment. It is sectional drawing which shows the solar energy power generation system in the sheet | seat waterproof structure which is 2nd Embodiment of this invention. It is a top view which shows the solar energy power generation system of 2nd Embodiment. It is sectional drawing which shows the solar energy power generation system in the sheet | seat waterproof structure which is 3rd Embodiment of this invention. It is a top view which shows the solar energy power generation system of 3rd Embodiment. It is a top view which shows the solar energy power generation system in the sheet | seat waterproof structure which is 4th Embodiment of this invention.

Explanation of symbols

1… Roof foundation (building frame)
5, 5a, 5b ... Waterproof sheet 6 ... Non-waterproof area 10, 20 ... Solar power generation panel 11 ... Substrate 12 ... Photovoltaic module 13 ... Upper surface protective plate 14 ... Adhesive 15 ... Lower surface adhesive layer

Claims (8)

A photovoltaic power generation system in a sheet waterproof structure in which a waterproof sheet made of a synthetic resin is partially fixed on a building frame via a sheet bonding plate, and a photovoltaic panel is installed on the waterproof sheet Because
In the solar power generation panel, a transparent upper surface protective plate is disposed on a metal substrate having a lower surface adhesive layer made of a thermoplastic synthetic resin on a lower surface side through a photovoltaic module made of crystalline silicon. The adhesive is formed between the substrate and the upper surface protection plate by being filled in an aspect for sealing the photovoltaic module,
When the fixing portion with the sheet bonding plate in the waterproof sheet is a sheet fixing portion,
A photovoltaic power generation system in a sheet waterproof structure, wherein an edge of a substrate in the photovoltaic power generation panel is bonded and fixed to the sheet fixing portion via the lower surface adhesive layer. The photovoltaic power generation panel has a polygonal shape in plan view,
The photovoltaic power generation system in a sheet waterproof structure according to claim 1, wherein corner portions of the photovoltaic power generation panel are bonded and fixed to the sheet fixing portion via the lower surface adhesive layer. A plurality of the sheet bonding plates are arranged at predetermined intervals,
A plurality of the photovoltaic panels are arranged in a plane on the waterproof sheet,
The sheet waterproof structure according to claim 1 or 2, wherein two or more corresponding edges of the plurality of neighboring solar panels are each bonded and fixed to one sheet fixing portion via the lower surface adhesive layer. Solar power system. A non-waterproof area where a waterproof sheet is not provided is provided in a part of the building housing,
The solar power generation panel is disposed on the waterproof sheet so as to close the non-waterproof area, and the outer peripheral edge of the lower surface side of the solar power generation panel is interposed between the lower surface adhesive layer and the non-waterproof area of the waterproof sheet. The photovoltaic power generation system in the waterproof sheet structure according to any one of claims 1 to 3, wherein the photovoltaic system is joined and fixed to the peripheral edge in a watertight state. The belt-shaped waterproof sheet is laid in a lattice form vertically and horizontally on the building frame,
The vertical and horizontal waterproof sheets are joined and fixed at the sheet intersection where the vertical and horizontal waterproof sheets intersect,
The sheet crossing portion is fixed to the sheet joining plate and configured as the sheet fixing portion,
The photovoltaic power generation system in a sheet waterproof structure according to claim 4, wherein the non-waterproof region is formed in a portion surrounded by vertical and horizontal waterproof sheets.   The photovoltaic power generation system in a waterproof sheet structure according to any one of claims 1 to 5, wherein the upper surface protection plate is formed of a hard plate.   The solar power generation system in a sheet prevention structure according to any one of claims 1 to 5, wherein the upper surface protection plate is formed of a synthetic resin plate (sheet, film). It is a solar panel for waterproofing a sheet installed on a building frame via a synthetic resin waterproof sheet,
An adhesive is filled between the substrate and the upper surface protection plate in a state of sealing the photovoltaic cell module in a state where a transparent upper surface protection plate is disposed on the metal substrate via a photovoltaic cell module made of crystalline silicon. The substrate, the photovoltaic module and the upper surface protection plate are laminated and integrated,
A sheet waterproofing photovoltaic panel, comprising a lower surface adhesive layer made of a thermoplastic synthetic resin for bonding and fixing to the surface of the waterproof sheet on the lower surface side of the substrate.

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