Installation structure for roof of flexible solar panel

Abstract

To install a flexible solar panel (solar sheet) that does not have a mounting structure for installation on a roof surface onto the roof firmly with simple operations in its original state.SOLUTION: A pair of roof mounting brackets 1 are fixed at appropriate intervals on a roof surface A, and a solar sheet C is bonded with an adhesive to an adhesive base portion B formed by extending a long board member 2 of an appropriate width between the pair of roof mounting brackets. The solar sheet C is bonded to a single or a plurality of adhesive base portions B.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a roof mounting structure for flexible solar panels. [Background technology]

[0002] Solar power generation is performed by installing a photovoltaic power generation device called a solar panel, which is composed of a non-flexible panel with photovoltaic power generation cells protected on the surface by a glass plate or an acrylic plate, on the roof of a building, but since the panel member has a certain weight, the roof on which it can be installed is limited, and the installation work is troublesome. In recent years, it has been proposed to install a flexible solar panel (hereinafter referred to as "solar sheet"), which is formed into a lightweight and flexible sheet by sandwiching photovoltaic power generation cells between resin films, on the roof.

[0003] Known means of installing the solar sheet include attaching it directly to the roof panel with adhesive (Patent Document 1), and installing and fixing metal fittings (sheet mounting fittings) of a length corresponding to the length of the solar sheet on the roof and then riveting or screwing the solar sheet to the fittings (Patent Documents 2, 3, and 4). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-124320 A. [Patent Document 2] JP 2017-145559 A. [Patent Document 3] JP 2019-85697 A. [Patent Document 4] Registered Utility Model No. 3202699. Summary of the Invention [Problem to be solved by the invention]

[0005] When attaching (laying) to a roof surface with adhesive, for example, in the case of a corrugated roof, where the roof surface has an uneven shape, the adhesive points are limited, and the solar sheet is not necessarily effectively attached and laid, and if the adhesive area is small, there is a risk that the solar sheet will be rolled up by the wind. Also, when adhesively laying on a flat roof surface, the entire back surface of the solar sheet will be in contact with the roof surface, which reduces the natural cooling effect of the solar sheet and makes the sheet prone to heat up, reducing power generation efficiency and accelerating the deterioration of the solar sheet's base material.

[0006] Furthermore, when riveting or screwing the solar sheet to a specified long metal fitting (sheet mounting fitting), riveted and bolt holes must be drilled in the solar sheet beforehand, and the sheet mounting fitting must be installed in a position that corresponds to the riveted and bolt holes in the solar sheet and fixed to the roof surface, making the work cumbersome.

[0007] Furthermore, in roofing structures such as shingle roofs, fixing the sheet mounting hardware to the existing roof components requires cumbersome waterproofing work, and if this is not done properly, the sheet mounting hardware must be fixed at the same time as the roofing work. However, as mentioned above, the fixing position of the sheet mounting hardware must be precisely as designed, and the roofing work that involves fixing and attaching the sheet mounting hardware can also be cumbersome.

[0008] Therefore, the present invention proposes a novel roof installation structure for a flexible solar panel (solar sheet) that allows for simple roof installation work and robust installation. [Means for solving the problem]

[0009] The roof installation structure for a flexible solar panel (hereinafter referred to as "solar sheet") according to claim 1 of the present invention comprises a pair of roof mounting brackets fixed at an appropriate interval on the roof surface, a thin metal long plate member of an appropriate width stretched between the pair of roof mounting brackets to form an attachment base on which the flexible solar panel to be installed is attached with an adhesive. Thus, the laminated film-like solar sheet is fixed in close contact with the surface of the long plate member of the attachment base provided on the roof surface.

[0010] In addition, the roof installation structure for solar sheets according to claims 2 to 4 of the present invention involves attaching the solar sheet to be installed to a number of adhesive bases formed on the roof surface, and the structure described in claim 3 particularly comprises a number of adhesive bases arranged in parallel across the width of the solar sheet to be installed, and the structure described in claim 4 particularly comprises an adhesive base arranged at a position corresponding to the outer periphery of the flexible solar panel to be installed.

[0011] Therefore, when the solar sheet is attached and fixed to multiple attachment bases, a space is formed between the roof surface and the back surface of the solar sheet, allowing air to circulate through the space, improving the cooling efficiency of the solar sheet. Furthermore, when the attachment bases are provided at positions corresponding to the outer periphery of the solar sheet to be installed, the space between the roof surface and the solar sheet becomes closer to a closed space, preventing the solar sheet from being lifted up by the wind.

[0012] In addition, the roof installation structure for solar sheets according to claims 5 to 7 of the present invention specifies a roof mounting bracket constituting an attachment base in order to apply the present invention to shingle roofs, which have been widely used in recent years for residential buildings. As is well known, shingle roofs are installed by overlapping roof panels one after another while exposing a portion of the roof panels from the eaves, and the roof mounting bracket has upper and lower mounting surfaces that are folded back and bent at the front to provide a space for at least the roof panels to be inserted, and nail holes for fixing the roof are provided at appropriate positions on the lower mounting surface, so that the roof mounting bracket is nailed to the roof panel during roofing work, and the tip of the next roof panel is fitted between the upper and lower mounting surfaces of the bracket to perform roofing, thereby fixing the roof mounting bracket to the roof surface.

[0013] Since the nailing parts for fixing the metal fittings to the shingle roof are covered by the next roof board to which the nailing is done, the metal fittings can be attached and fixed without carrying out any weatherproofing treatment.

[0014] The installation structure described in claim 6 is characterized in that, in the roof mounting bracket, a nail hole is provided at a position below the upper mounting surface portion of the lower mounting surface portion, and a long hole through which a nail can be driven is provided in the upper mounting surface portion corresponding to the nail hole formation position, and the long hole can be used for connecting the mounting base member with a bolt and nut.

[0015] In addition, the installation structure described in claim 7 has the upper mounting surface portion protruding rearward beyond the length of the exposed portion of the roof panel to form a rearward protruding surface portion, nail holes are formed in the rearward protruding surface portion, and during roofing work, with the tip portion of the next roof panel fitted between the upper and lower mounting plate portions, the rearward protruding surface portion is nailed to the next roof panel to fix the roof mounting bracket to the roof surface.

[0016] Therefore, the nailed points of the lower mounting surface are covered by the next roof panel as described above, and the rearward protruding surface, which is an extension of the upper mounting surface, is nailed to the next roof panel, and the nailed points are covered by the roof panel after that.

[0017] In addition, the roof installation structure for a solar sheet according to claims 8 to 11 of the present invention specifies the structure of the long plate member that constitutes the adhesive base, and has a long connecting hole at a predetermined position of the long plate member for connecting with a bolt attached to the roof mounting bracket.Furthermore, the structure described in claim 9 particularly has the long connecting hole provided in a direction perpendicular to the long hole provided on the upper mounting surface of the roof mounting bracket described in claim 6, making it possible to adjust the bolt and nut connection position between the roof mounting bracket and the adhesive base.

[0018] In addition, the installation structure described in claims 10 and 11 comprises an L-shaped leg plate cut and formed at an appropriate position in the longitudinal direction of a long plate member, and nail holes further formed in the L-shaped leg plate. The long mounting base member is connected to the roof panel at the L-shaped leg, thereby preventing bending (in the front-to-back direction) of the long adhesive base. Effect of the Invention

[0019] Thus, the present invention makes it possible to sturdily install a thin laminated film solar sheet on a roof with simple procedures, without the need for riveting to connect the sheet to the mounting components (roof mounting fittings and adhesive base) installed on the roof. [Brief description of the drawings]

[0020] [Figure 1] FIG. 2 is an explanatory diagram of a roof mounting bracket (first embodiment) and a long plate member (first embodiment) used in a first embodiment of the adhesive base of the present invention. [Diagram 2] An explanatory diagram of how to attach the roof mounting bracket to a roof. [Diagram 3] An explanatory diagram of the installation process for the solar sheet. [Figure 4] FIG. 11 is an overall perspective view of a roof mounting bracket (second embodiment) used in the second embodiment. [Diagram 5] An explanatory diagram for installing the roof. [Figure 6] FIG. 4 is a partially cut perspective view of the long plate member (second embodiment). [Figure 7] Same cross-sectional view. [Figure 8] FIG. [Figure 9] Same figure DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Next, an embodiment of the present invention will be described. The embodiment shows an example in which an attachment base B is disposed in a predetermined position on a shingle roof A, and a solar sheet C is installed on the roof surface. Figures 1 to 3 show the first embodiment.

[0022] Shingle roof A is made by layering flexible roof panels a, called asphalt shingles or fiberglass shingles, on a roof underlay (typically a waterproof paper is laid on the roof underlay), leaving a portion of the roof panel a (the eaves side) exposed, and then fixing it to the roof underlay by nailing or gluing.

[0023] The adhesive base B is composed of a roof mounting bracket (first embodiment) 1 and a long plate member (first and second embodiment) 2, and is arranged and fixed in multiple locations on the roof surface A in an appropriate range corresponding to the installation range of the solar sheet C described below and the fixed portion (adhesive portion) of the solar sheet C.

[0024] The roof mounting bracket 1 comprises a bracket body having upper and lower mounting surfaces 11, 12 and a rearward protruding surface 13, and is provided with a long plate member mounting portion 14, a front nail hole 15, a rear nail hole 16, and a work hole 17.

[0025] The upper and lower mounting surfaces 11, 12 are folded back and bent (bent portion 18) at the front so that there is at least a gap that allows the roof panel to be fitted in, and the upper mounting surface 11 is formed in a range corresponding to the length of the exposed portion of the roof panel a, and both sides of the upper mounting surface 11 are hung down to form side edge panel portions 19, forming the upper mounting surface 11 into a downwardly opening box shape. The gap between the lower end of the side edge panel portion 19 and the lower mounting surface 12 is made to match the thickness of the roof panel a.

[0026] The rear protruding surface portion 13 is formed continuously with a step at the rear of the upper mounting surface portion 11, and is formed higher than the surface of the lower mounting surface portion 12 by the thickness of the roof panel a.

[0027] Also, bolt rods are formed upright on the top surface of the upper mounting surface 11 to form long plate member mounting parts 14, front nail holes 15 are provided at several appropriate locations in the front range corresponding to the exposed parts of the roof boards on the lower mounting surface 12, and work through holes 17 to enable nail driving are provided at positions corresponding to the front nail holes 15 on the upper mounting surface 11. Furthermore, rear nail holes 16 are provided at several appropriate locations on the rear protruding surface 13.

[0028] The long plate member 2 is shaped to a length that takes into consideration the back-attaching portion of the solar sheet C to be installed, and has long holes 21 formed at appropriate locations (the ends in the illustrated example) for bolt rods (long plate member mounting portions 14), and is equipped with connecting nuts 22.

[0029] The installation of the solar sheet C on the roof A involves fixing the roof mounting bracket 1 onto the roof A during roofing work on a shingle roof A, in which predetermined roof panels a are layered one on top of the other while leaving a portion of them exposed from the eaves. The fixing work is carried out by aligning the bent portion 18 of the roof mounting bracket 1 with the position corresponding to the lower edge of the middle roof panel a2, and nailing the middle roof panel a2 to the lower roof panel a1 using the front nail hole 15 before laying the lower roof panel a1. The nailing work is carried out through the work through hole 17 in the upper mounting surface portion 11.

[0030] After the roof mounting bracket 1 is nailed to the lower roof panel a1, the middle roof panel a2 is inserted between the upper and lower mounting surfaces, and the middle roof panel a2 is roofed as usual. After roofing of the middle roof panel a2 is completed, the roof mounting bracket 1 is fixed to the roof A by nailing using the rear nail hole 16 on the middle roof panel a2 or on the rear protruding surface portion 13 located on the rear of the middle roof panel a2. After the installation of the roof mounting bracket 1 is completed, the upper roof panel (next roof panel) a3 is roofed, and the upper roof panel a3 is roofed so as to cover the rear protruding surface portion 13 of the roof mounting bracket 1 (Figure 3A).

[0031] The long plate member 2 is erected and fixed to each of the long plate member mounting portions 14 of a pair of roof mounting brackets 1 arranged at a predetermined interval using long holes 21 and connecting nuts 22 to form an attachment base B. Multiple attachment bases B are arranged and fixed on the roof A (Figure 3(b)), and the back surface of the solar sheet C is attached and fixed to the upper surface of the long plate member 2 with adhesive, thereby installing the solar sheet C on the roof surface (Figure 3(c)).

[0032] In particular, the shingle roof A is often used for buildings with lightweight, steeply sloping roofs, but it is difficult to install heavy solar panels on steeply sloping roofs. However, by adopting the structure of this invention, solar power generation can be easily realized by installing solar sheet C even on buildings with steeply sloping roofs.

[0033] Figures 4 to 9 show the second embodiment, which also involves placing an adhesive base B1 in a predetermined position on a shingle roof A and installing a solar sheet C1 on the roof surface. The adhesive base B1 is composed of a roof mounting bracket (second embodiment) 3 and a long plate member (second embodiment) 4.

[0034] The roof mounting bracket 3 is U-shaped with an opening at the rear and folded back and bent (bent portion 38) at the front to leave a gap (equal to the thickness of roof panel a) that can at least fit roof panel a into it, and is equipped with upper and lower mounting surfaces 31, 32 with sufficient width to fit externally into the exposed portion of roof panel a.

[0035] A plurality of front nail holes 35 and rear nail holes 36 are formed in a horizontal row at a position below the upper mounting plate part 31 on the lower mounting surface part 32 and at a rear position away from the upper mounting plate part 32, and a work through hole 37 is formed in the upper mounting surface part 31 above the front nail hole 35, which enables the driving of a nail b into the front nail hole 35. The work through hole 37 also serves as a horizontally elongated hole for mounting a connecting bolt 34 to the long plate member 4.

[0036] The long plate member 4 is a long, C-shaped member made of thin metal plate with an opening at the bottom, with a width of approximately 30 to 50 cm corresponding to the elongated solar sheet C1 and an appropriate length corresponding to the slope of the roof on which it is to be installed. It has vertical holes 41 near both ends for connecting to the roof mounting bracket 3, and an L-shaped leg plate 43 that is cut and bent backwards is installed at an appropriate position in the longitudinal direction (middle position), and nail holes 44 are further provided in the L-shaped leg plate 43.

[0037] The roof mounting bracket 3 of the second embodiment is fixed to the roof in accordance with the roofing work, in the same way as the bracket of the first embodiment. That is, the bent portion 38 of the roof mounting bracket 3 is aligned with the lower edge of the middle roof panel a2, and before laying the middle roof panel a2, the lower roof panel a1 is nailed to the middle roof panel a1 using nails b in the front and rear nail holes 35, 36. In particular, the nailing work of the front nail hole 35 is performed through the work through hole 37 of the upper mounting surface portion 31.

[0038] After the roof mounting bracket 1 is nailed to the lower roof panel a1, the middle roof panel a2 is inserted between the upper and lower mounting surfaces, and the middle roof panel a2 is roofed as usual, whereby the heads of the nails b driven into the front and rear nail holes 35, 36 are covered by the middle roof panel a2, achieving weatherproofing.

[0039] After the roof mounting bracket 3 on the bottom side of the roof is installed and fixed, the lower (bottom) part of the long plate member 4 is aligned with the roof mounting bracket 3 (within the range where the work through hole 37 and the vertical hole 41 intersect), and the L-shaped leg plate 43 is nailed to the lower stage roof plate a4 at the point where the rising part of the L-shaped leg plate 43 coincides with the lower edge of the upper stage roof plate a5 during the roofing work. After that, the roof is thatched so that the L-shaped leg plate 43 is covered with the upper stage root plate a5.

[0040] When roofing the area corresponding to the upper end (ridge side) of the long plate member 4, the roof mounting bracket 3 is fixed onto the roof surface in the same manner as the lower side (roof bottom side) described above, and the upper and lower pair of roof connecting brackets 3 and the long plate member 4 are integrated with each other by the connecting bolts 34 and connecting nuts 42 through the intersecting work through holes 37 and vertical elongated holes 41. This forms the attachment base B1 on the roof.

[0041] A long solar sheet C1 corresponding to the width of the attachment base B1 is attached to the attachment base B1 with an adhesive, thereby installing the solar sheet C1 on the roof surface.

[0042] Furthermore, the fixing of the L-shaped leg plate 43 of the long plate member 4 to the roof surface does not have to be carried out simultaneously with the roofing work described above. Instead, a pair of roof mounting brackets 3 are installed and fixed onto the roof in the same manner as the work process shown in the first embodiment, and then the L-shaped leg plate 43 is inserted from the front end (lower edge) of the upper stage roof plate a5 to stabilize the long plate member 4. Alternatively, the L-shaped leg plate 43 can be placed on the upper stage roof plate a5 and nailed to it, and the nail heads can be covered with an appropriate adhesive to provide a weatherproofing.

[0043] Furthermore, the width of the long plate member 4 in the second embodiment is made to accommodate the particularly wide long solar sheet C1, but a narrow member can be used as in the first embodiment, and the wide, planar solar sheet C can be attached to multiple parallel-installed attachment bases (B, B1) and installed on the roof, and the structures of the metal fittings 1, 3 and members 2, 4 in the first and second embodiments can be combined in any manner.

[0044] As described above, the present invention is not limited to the specific structures of the roof mounting brackets 1, 3 and the long plate members 2, 4 shown in the embodiments, and the specific structure of the adhesive base B can be determined arbitrarily as long as an adhesive point (adhesive base B, B1) is formed on the roof surface and the solar sheet is adhered to and installed by using one or more adhesive bases. [Explanation of symbols]

[0045] A. Single roof a,a1,a2,a3,a4,a5 roof board b nail B, B1 Adhesive base C, C1 Solar sheet 1,3 Roof mounting bracket 11,31 Upper mounting surface 12,32 Lower mounting surface 13 Rear protruding surface part 14 Long plate member attachment part 34 Connecting bolt 15,35 Anterior nail hole 16,36 Rear nail hole 17 Work hole 37 Work hole (horizontal long hole) 18,38 Bend 19 Side edge plate 2,4 Long plate members 21 long hole 41 Vertical hole 22,42 Connecting nut 43 L-shaped leg plate 44 Nail hole

Claims

1. This roof mounting structure for a flexible solar panel is formed by fixing a pair of roof mounting fittings at an appropriate interval on the roof surface, and suspending a thin, long metal plate member of an appropriate width between the pair of roof mounting fittings to form an attachment base, on the upper surface of which the flexible solar panel to be installed is attached with an adhesive.

2. 2. The roof mounting structure for a flexible solar panel according to claim 1, wherein the flexible solar panels to be mounted are attached to a plurality of attachment bases formed on the roof surface.

3. 3. The roof mounting structure for a flexible solar panel according to claim 2, wherein a plurality of the attachment bases are provided in parallel across the width of the flexible solar panel to be mounted.

4. 3. The roof mounting structure for a flexible solar panel according to claim 2, wherein the adhesive base is provided at a position corresponding to the outer periphery of the flexible solar panel to be mounted.

5. 5. A roof installation structure for a flexible solar panel according to any one of claims 1 to 4, in which the roof on which the panels are to be installed is a shingle roof in which roof panels are layered one on top of the other while exposing a portion of the roof panel from the eaves, and the roof mounting bracket constituting the attachment base has upper and lower mounting surfaces which are folded back and bent at the front to leave a gap which allows at least the roof panel to be inserted, and nail holes for fixing the roof are provided at appropriate positions on the lower mounting surface, so that the roof mounting bracket is nailed to the roof panel during roofing work, and the tip portion of the next roof panel is fitted between the upper and lower mounting surfaces of the bracket to perform roofing and fix the roof mounting bracket to the roof surface.

6. 6. A roof mounting structure for a flexible solar panel as claimed in claim 5, wherein a nail hole is provided at a position below the upper mounting surface of the lower mounting surface, and a long hole for enabling nailing is provided at the upper mounting surface corresponding to the nail hole forming position.

7. 7. A roof mounting structure for a flexible solar panel as described in claim 6, wherein the upper mounting surface portion is formed as a rearward protruding surface portion by protruding rearward beyond the length of the exposed portion of the roof panel, nail holes are formed in the rearward protruding surface portion, and the roof mounting bracket is fixed to the roof surface by nailing the rearward protruding surface portion to the next roof panel with the tip portion of the next roof panel fitted between the upper and lower mounting surfaces during roofing work.

8. 5. A roof mounting structure for a flexible solar panel according to claim 1, wherein the long plate member constituting the attachment base has long connection holes at predetermined positions for connection with bolts attached to the roof mounting brackets.

9. 9. A roof mounting structure for a flexible solar panel according to claim 8, wherein the connecting slot is provided in a direction perpendicular to the slot provided on the upper mounting surface of the roof mounting bracket according to claim 6.

10. 10. A roof mounting structure for a flexible solar panel according to claim 8 or 9, wherein an L-shaped leg plate is cut and raised and attached below the long plate member at an appropriate position in the longitudinal direction of the long plate member.

11. 11. The roof mounting structure for a flexible solar panel according to claim 10, wherein the L-shaped leg plate is provided with nail holes.

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