Solar battery panel fitting structure and construction method

Abstract

To improve a reformable property by enabling a solar battery panel to be more easily removed from a construction surface than before.SOLUTION: A solar battery panel fitting structure is a structure for fitting a sheet-like solar battery panel 100 to a prescribed construction surface of a building 5. The solar battery panel 100 is bonded to the construction surface with a double-sided adhesive tape 200 and detachably caulked and joined with a rivet (caulking member) 250. The double-sided adhesive tape 200 is disposed on at least substantially whole circumference of an outer peripheral edge of a rear face 120a facing the construction surface of the solar battery panel 100.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a solar cell panel mounting structure and installation method. [Background technology]

[0002] Solar cell panels are known that are installed on roofs of ordinary houses, warehouses, buildings, gymnasiums, and other buildings to conserve electricity. This type of solar cell panel is configured as a module with multiple panels connected together. Conventionally, when solar cell panels are installed on roofs, for example, they are installed on metal stands assembled on the roof to ensure that they are not affected by unevenness in the roof and can adequately support the weight of the solar cell panel. Recently, flexible, sheet-shaped, and extremely lightweight solar cell panels have been developed, and these solar cell panels are installed on flat roof surfaces with adhesive (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 09-186354 Summary of the Invention [Problem to be solved by the invention]

[0004] Solar panels may undergo maintenance such as repairs and element replacement. Also, if a solar panel becomes unusable due to breakdown or deterioration, it may be replaced with a new one. When a solar panel needs to be renovated, it is removed, but if it is attached to the roof with adhesive, it is difficult to remove and is not easily renovated.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide a solar cell panel mounting structure and installation method that makes it easier to remove solar cell panels from the installation surface than before, thereby improving the ease of renovation. [Means for solving the problem]

[0006] (1) The solar cell panel mounting structure of the present invention is a structure for mounting a sheet-shaped solar cell panel on a predetermined construction surface of a building, characterized in that the solar cell panel is adhered to the construction surface with double-sided adhesive tape and is removably connected with a connecting member consisting of at least one of a crimping member and a screw.

[0007] (2) In the solar cell panel mounting structure of the present invention, the double-sided adhesive tape is preferably disposed over at least approximately the entire periphery of the mounting surface of the solar cell panel that faces the installation surface.

[0008] (3) In the solar cell panel mounting structure of the present invention, it is preferable that a plurality of the joining members are arranged at predetermined intervals around at least substantially the entire periphery of the solar cell panel.

[0009] (4) In the solar cell panel mounting structure of the present invention, it is preferable that the joining member penetrates the double-sided adhesive tape.

[0010] (5) In the solar cell panel mounting structure of the present invention, the installation surface may be provided on at least one of a roof and a wall.

[0011] (6) The solar cell panel installation method of the present invention is a method for attaching a sheet-shaped solar cell panel to a predetermined installation surface of a building, and is characterized by comprising the steps of: attaching double-sided adhesive tape to at least one of the installation surface and an attachment surface of the solar cell panel facing the installation surface; adhering the solar cell panel to the installation surface via the double-sided adhesive tape; and removably connecting the solar cell panel to the installation surface using a connecting member consisting of at least one of a crimping member and a screw.

[0012] (7) In the solar cell panel installation method of the present invention, the installation surface may be provided on at least one of a roof and a wall. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a solar cell panel mounting structure and installation method that makes it easier to remove a solar cell panel from an installation surface than before, thereby improving the ease of renovation. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a building in which a solar cell panel mounting structure according to an embodiment is adopted. [Figure 2] 1 is a cross-sectional view showing the joining structure and fixing structure of a roof panel according to an embodiment of the present invention. [Figure 3] 1 is a perspective view showing a solar cell panel according to an embodiment. [Figure 4] FIG. 1 is a plan view showing a state in which a solar cell panel according to an embodiment is attached to a roof. [Figure 5] FIG. 5 is a cross-sectional view of FIG. 4 . [Figure 6] 1A, 1B, and 1C are cross-sectional views showing the process of crimping using a rivet (crimping member) according to an embodiment in this order. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a building 5 on which a solar cell panel 100 according to an embodiment of the present invention is installed. The building 5 may be, for example, a livestock barn such as a chicken coop or piggery, a warehouse, a factory, or the like, but is not limited to these. The building 5 has a roof 7 and exterior walls 9. The roof 7 in this embodiment is a gable roof, and is provided on both sides of a ridge 5M with a slope at a predetermined angle. The roof 7 is formed by joining multiple rectangular roof panels 1. Multiple roof panels 1 are joined in the width direction (girder direction), and two roof panels 1 are arranged side by side in the slope direction (flow direction).

[0016] FIG. 2 shows a cross section of the fixing structure at the joint of roof panels 1 adjacent in the width direction (horizontal direction).

[0017] The roof panel 1 is installed on a plurality of purlins 2, and the joint edge 1A on one end (right side) of the roof panel 1 shown on the left side in Fig. 2 is fixed to the purlins 2 with a screw 3. Then, the joint edge 1B on the other end (left side) of the roof panel 1 shown on the right side in Fig. 2 is joined to the joint edge 1A. In this way, the joint edge 1A on one end of the roof panel 1 is fixed with a screw 3, and the joint edge 1B on the other end is joined to the joint edge 1A of the fixed roof panel 1, and this process is repeated until a predetermined number of roof panels 1 are installed in the width direction.

[0018] The roof panel 1 is installed with its vertical direction (longitudinal direction) parallel to the slope direction. In other words, the roof panel 1 is installed so that the edges of the joint ends 1A and 1B extend in the slope direction. The purlins 2 are made of wood or metal channels.

[0019] As shown in Figure 2, roof panel 1 is a metal sandwich panel in which core material 30 made of a predetermined thickness of insulating material is sandwiched between front side surface material 10 and back side surface material 20, both of which are made of thin metal plates. Front side surface material 10 and back side surface material 20 are bonded to both sides of core material 30 with an adhesive. The adhesive is selected depending on the materials of front side surface material 10, back side surface material 20, and core material 30, and for example, a resin-based adhesive such as a urethane-based adhesive or an epoxy-based adhesive is used.

[0020] Although there are no restrictions on the material of the front side surface member 10 and the back side surface member 20, steel plate is preferred, and for example, a hot-dip 55% aluminum-zinc alloy plated steel plate (e.g., Galvalume Steel Plate (registered trademark) such as Color Galvalume Steel Plate (registered trademark)) or other color steel plate, etc. The front side surface member 10 and the back side surface member 20 have a thickness (e.g., about 0.35 mm) that allows elastic deformation.

[0021] The core material 30 is made of a lightweight resin foam material with heat insulating properties, such as polystyrene, but the material is not limited to this. The thickness of the core material 30 is, for example, 25 to 100 mm. The overall dimensions of the roof panel 1 are arbitrary and are determined to suit the roof to which it is to be installed, but examples include a vertical length of approximately 1800 to 13000 mm, a width of 400 to 1200 mm, and a thickness of approximately 25 to 300 mm.

[0022] As described above, the joint end 1A of the roof panel 1 is fixed to the purlin material 2 with a screw 3. As shown in Figure 2, the screw 3 penetrates the gutter-shaped portion 6 formed at the joint end 1A and the retaining clip 4, which is fitted into the gutter-shaped portion 6, and is then screwed into the purlin material 2 to fasten it in place. The hole through which the screw 3 penetrates is waterproofed with an appropriate sealing means to prevent water such as rainwater and melted snow from reaching the purlin material 2.

[0023] As shown in Figure 2, between roof panels 1, back-side engaging portion 43 of joint end 1A elastically engages with back-side engaging portion 44 of joint end 1B, and front-side engaging portion 45 of joint end 1B enters under and elastically engages with front-side engaging portion 41. The tip of front-side engaging portion 45 is pressed against waterproof sealing material 49, crimping and sealing. Caulking material 48 is filled in and seals the space between front-side engaging portions 41, 45. In this embodiment, a portion of joint end 1B overlaps the end of back surface material 20 on the back side of joint end 1A, covering the heads of screws 3, so that the heads of screws 3 are not exposed to the front surface (exterior).

[0024] The roof panel 1 constructed as described above has a surface (construction surface) 71 formed by the front side surface material 10, and a back surface 72 formed by the back side surface material 20. The entire surface of the front side surface 71 formed by the front side surface material 10 and the entire surface of the back surface 72 formed by the back side surface material 20 are both flat. "Flat" here means that the surfaces of the surface materials 10, 20 have not been deformed into obvious irregularities (corrugated shapes) by bending, pressing, or the like, and remain in the flat state of the metal plate material.

[0025] As shown in Figure 1, two roof panels 1 are installed side by side in the tilt direction on the roof 7 on one side of the ridge 5M. In the embodiment, the roof 7 is arranged such that the upper end of the lower roof panel 1 in the tilt direction overlaps the lower end of the upper roof panel 1 in the tilt direction. As a result, a step 8 exposed to the outside is formed at the transition point from the upper roof panel 1 to the lower roof panel 1, depending on the panel thickness.

[0026] As shown in FIG. 1, a building 5 of the embodiment has a plurality of solar cell panels 100 installed at arbitrary locations on a roof 7 and an exterior wall 9.

[0027] 3, the solar cell panel 100 of this embodiment is a flexible rectangular sheet-like object that can be bent or rolled by applying a certain degree of deformation force. This solar cell panel 100 has a well-known configuration, including a rectangular panel body 110 that is a power generation section in which a plurality of solar cells arranged in a matrix are laminated with a resin sheet, and a rectangular base sheet 120 attached to the back surface of the panel body 110. The base sheet 120 has a larger area than the panel body 110, and the four outer edges of the base sheet 120 extend beyond the four outer edges of the panel body 110.

[0028] The solar cell panel 100 is installed at any location on the surface 71 of the roof 7 and the wall surface 91 of the exterior wall 9. The surface 71 of the roof 7 and the wall surface 91 of the exterior wall 9 are construction surfaces on which the solar cell panel 100 is installed.

[0029] Fig. 4 is a plan view showing a state in which a solar cell panel 100 is attached to a surface 71 of a roof 7. Fig. 5 is a cross-sectional view taken along line VV in Fig. 4. As shown in Figs. 4 and 5, the solar cell panel 100 is attached to the surface 71 of the roof panel 1 by adhering it with a strip of double-sided adhesive tape 200 and by crimping and joining it with a plurality of rivets 250 (crimping member, joining member).

[0030] The double-sided adhesive tape 200 is arranged around the four periphery of the back surface (mounting surface) 120a of the base sheet 120, which is the back surface of the solar cell panel 100, i.e., around almost the entire periphery of the outer periphery of the four sides of the back surface 120a of the base sheet 120, and is attached to the back surface 120a. The double-sided adhesive tape 200 is then attached to the surface 71 of the front side surface material 10 of the roof panel 1.

[0031] The multiple rivets 250 are arranged at approximately equal intervals around the entire outer periphery of the solar cell panel 100. In the embodiment, the multiple rivets 250 are arranged corresponding to the double-sided adhesive tape 200, and penetrate the base sheet 120 of the solar cell panel 100, the double-sided adhesive tape 200, and the front side surface material 10 of the roof panel 1.

[0032] As shown in Fig. 6, rivet 250 is a so-called blind rivet. This rivet 250 includes a cylindrical member 251 having a flange 251a at the end on the front side (upper side in Fig. 6), and a shaft member 252 that passes through cylindrical member 251 and has a head 252a at the end on the back side (lower side in Fig. 6).

[0033] To crimp and join the solar cell panel 100 to the roof panel 1 using the rivet 250, as shown in FIG. 6(a), a pilot hole 260 is formed in the base sheet 120 of the solar cell panel 100, which is attached to the surface 71 of the roof panel 1 with the double-sided adhesive tape 200, the double-sided adhesive tape 200, and the front side surface material 10 of the roof panel 1, and the rivet 250 is inserted into the pilot hole 260 from the tip side (the head 252a side of the shaft member 252). The rivet 250 has a tubular member 251 and a shaft member 252 that pass through the pilot hole 260, so that the flange 251a can abut against the surface 71 of the roof panel 1, and the rear end of the tubular member 251 and the shaft member 252 protrude into the core member 30 inside the front side surface material 10. The shaft member 252 extends from the tubular member 251 toward the front surface side.

[0034] Next, using a predetermined pulling tool or the like, shaft member 252 is pulled toward the front surface side of roof 7 (above roof 7) while receiving a reaction force from flange 251a. As a result, as shown in FIGS. 6(b) and 6(c), head 252a of shaft member 252 crushes the end portion on the back surface side of tubular member 251, forming spherical engaging portion 251b, and base sheet 120 of solar cell panel 100, double-sided adhesive tape 200, and front side surface material 10 of roof panel 1 are tightly sandwiched and maintained between engaging portion 251b and flange 251a. As a result, base sheet 120 of solar cell panel 100 is crimped and joined to front side surface material 10 of roof panel 1 with rivet 250. After crimping, shaft member 252 breaks in a manner such that the broken portion remains, for example, inside tubular member 251.

[0035] The above is the mounting structure of the embodiment in which the solar cell panel 100 is mounted on the surface 71 of the front side material 10 of the roof panel 1 that constitutes the roof 7. The construction method for obtaining this mounting structure includes, for example, the following steps.

[0036] That is, first, double-sided adhesive tape 200 is attached to the outer peripheral edge of back surface 120a of base sheet 120 of solar cell panel 100. Here, if possible, double-sided adhesive tape 200 may be attached to surface 71 of front side surface material 10 of roof panel 1, or double-sided adhesive tape 200 may be attached to both the solar cell panel 100 side and the roof panel 1 side as appropriate so as not to overlap. Next, solar cell panel 100 is bonded to surface 71 of roof panel 1 via double-sided adhesive tape 200. Next, base sheet 120 of solar cell panel 100 is crimped and joined to front side surface material 10 of roof panel 1 with rivets 250.

[0037] The above-described structure and construction method for mounting the solar cell panel 100 on the roof 7 can be similarly adopted when mounting the solar cell panel 100 on the wall surface 91 of the exterior wall 9. That is, the solar cell panel 100 is adhered to the wall surface 91 with double-sided adhesive tape 200, and the base sheet 120 of the solar cell panel 100 is crimped and joined to the wall surface 91 with rivets 250. The construction method is also the same as that for the roof 7 described above.

[0038] According to the embodiment, when performing maintenance such as repair or element replacement on the solar cell panel 100 installed on the roof 7 or the exterior wall 9, the solar cell panel 100 can be removed from the installation surface. To remove the solar cell panel 100, the rivet 250 is pulled out and the solar cell panel 100 together with the double-sided adhesive tape 200 is peeled off from the installation surface.

[0039] To remove the rivet 250, for example, the rotary blade of a drilling tool such as a drill is embedded into the tubular member 251 of the rivet 250 while rotating it to unite the rotary blade with the tubular member 251, and then the tool is pulled up to remove the tubular member 251 from the front side surface material 10, the double-sided adhesive tape 200, and the base sheet 120. Thereafter, the solar cell panel 100 together with the double-sided adhesive tape 200 is peeled off from the application surface. In other words, the solar cell panel 100 is detachably crimped and joined to the application surface by the rivet 250.

[0040] In this way, the solar cell panel 100 can be removed from the roof 7 or the exterior wall 9, which makes removal easier than with conventional mounting structures in which the solar cell panel is attached with adhesive. This improves the ease of renovation. The power generation section of the removed solar cell panel 100 remains intact, so it can be reused as long as the power generation function is not impaired.

[0041] According to each of the above-described embodiments, the following effects are achieved. (1) The mounting structure for the solar cell panel 100 according to the embodiment is a structure for mounting a sheet-like solar cell panel 100 on a predetermined construction surface of a building 5 (such as the surface 71 of the roof 7 or the wall surface 91 of the exterior wall 9), and is characterized in that the solar cell panel 100 is adhered to the construction surface with double-sided adhesive tape 200 and is removably crimped and joined with a crimping member such as a rivet 250. This makes it easier to remove the solar cell panel 100 from the construction surface than before, improving the ease of renovation.

[0042] (2) In the mounting structure of the solar cell panel 100 according to the embodiment, the double-sided adhesive tape 200 is preferably disposed around at least approximately the entire outer periphery of the back surface 120a, which is the mounting surface facing the installation surface of the solar cell panel 100. This makes it possible to easily prevent the solar cell panel 100 from peeling off or becoming detached from the installation surface, even in the event of strong winds, for example, and ensures that the installation state is maintained safely.

[0043] (3) In the mounting structure for the solar cell panel 100 according to the embodiment, it is preferable that a plurality of rivets 250 or other crimping members are arranged at predetermined intervals around at least approximately the entire periphery of the solar cell panel 100. This makes it easier to prevent the solar cell panel 100 from peeling off or becoming detached from the installation surface, even in the event of strong winds, for example, and the mounted state is maintained more safely.

[0044] (4) In the mounting structure for the solar cell panel 100 according to the embodiment, it is preferable that the crimping member such as the rivet 250 penetrates the double-sided adhesive tape 200. This reduces the area required to fasten the solar cell panel 100 to the installation surface, thereby reducing the overall area of ​​the solar cell panel 100 without impairing power generation efficiency, and maintaining the adhesion of the double-sided adhesive tape 200 to the installation surface.

[0045] (5) In the mounting structure for the solar cell panel 100 according to the embodiment, the installation surface is provided on at least one of the roof 7 and the exterior wall 9. In other words, the solar cell panel 100 can be installed not only on the roof 7 but also on the exterior wall 9.

[0046] (6) The solar cell panel installation method according to the embodiment is a method for attaching a sheet-like solar cell panel 100 to a predetermined installation surface of a building 5 (such as the surface 71 of the roof 7 or the wall surface 91 of the exterior wall 9), and is characterized by comprising the steps of: attaching double-sided adhesive tape 200 to at least one of the installation surface and the back surface 120a, which is the mounting surface of the solar cell panel 100 facing the installation surface; adhering the solar cell panel 100 to the installation surface via the double-sided adhesive tape 200; and detachably crimping and joining the solar cell panel 100 to the installation surface using a crimping member such as a rivet 250. This makes it easier to remove the solar cell panel 100 from the installation surface than before, improving the ease of renovation.

[0047] (7) In the solar cell panel installation method according to the embodiment, the installation surface is provided on at least one of the roof 7 and the exterior wall 9. In other words, the solar cell panel 100 can be installed not only on the roof 7 but also on the exterior wall 9.

[0048] The above is an embodiment of the present invention, but the present invention is not limited to the above embodiment and can be modified within the scope of the present invention.

[0049] For example, the double-sided adhesive tape 200 may be attached not only to the outer periphery of the rear surface 120a of the solar cell panel 100, but also to any position on the inside away from the outer periphery.

[0050] In the above embodiment, the rivet 250 is positioned in a position corresponding to the double-sided adhesive tape 200 so as to penetrate the double-sided adhesive tape 200, but the rivet 250 may also be positioned on the outside or inside of the double-sided adhesive tape 200 in a planar view of the solar cell panel 100, or both.

[0051] In the other embodiment described above, rivets 250 are used as the connecting members to be combined with magnets 210, but screws may be used as the connecting members instead of rivets 250. Suitable screws include, for example, tex screws such as "Tornado Point" manufactured by Yamahiro Co., Ltd. When screws are used, the screws are fastened using a fastening tool such as a screwdriver. When removing the solar cell panel 100 from the installation surface, the fastening tool is used to turn the screw in the opposite direction to when fastened, thereby loosening the screw and allowing it to be removed from the installation surface. In other words, the solar cell panel 100 can be detachably connected to the installation surface with the screws.

[0052] The solar cell panel 100 may be attached to the installation surface using a combination of a caulking member such as a rivet 250 and a screw. That is, the solar cell panel 100 may be detachably attached using at least one of a caulking member and a screw.

[0053] The roof 7 is made up of a plurality of roof panels 1, but may also be made up of a roof covered with metal plates such as steel plates or metal sheets.

[0054] The building on which the solar cell panel 100 is installed also includes a fence. [Explanation of symbols]

[0055] 5...building, 7...roof, 9...exterior wall, 71...surface of roof panel (construction surface), 91...wall surface of exterior wall (construction surface), 100...solar cell panel, 120a...back surface of solar cell panel (mounting surface), 200...double-sided adhesive tape, 250...rivet (crimping member, connecting member).

Claims

1. A structure in which sheet-type solar panels are attached to a predetermined construction surface of a building, The solar cell panel mounting structure is characterized in that the solar cell panel is adhered to the installation surface with double-sided adhesive tape and is removably connected with connecting members such as at least one of a crimping member and a screw.

2. 2. The solar cell panel mounting structure according to claim 1, wherein the double-sided adhesive tape is disposed over at least substantially the entire periphery of the outer periphery of the mounting surface of the solar cell panel that faces the installation surface.

3. 3. The solar cell panel mounting structure according to claim 1, wherein a plurality of said joining members are arranged at predetermined intervals around at least substantially the entire periphery of said solar cell panel.

4. 3. The solar cell panel mounting structure according to claim 1, wherein the joining member penetrates the double-sided adhesive tape.

5. 3. The solar cell panel mounting structure according to claim 1, wherein the construction surface is provided on at least one of a roof and a wall.

6. A construction method for attaching a sheet-shaped solar panel to a predetermined construction surface of a building, comprising: a step of attaching a double-sided adhesive tape to at least one of an attachment surface of the solar cell panel facing the installation surface and the installation surface; a step of adhering the solar cell panel to the installation surface via the double-sided adhesive tape; a step of removably connecting the solar cell panel to the installation surface using a connecting member that is at least one of a caulking member and a screw.

7. 7. The solar cell panel installation method according to claim 6, wherein the installation surface is provided on at least one of a roof and a wall.

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