Exterior structure including solar cell panel

Abstract

To provide an exterior structure equipped with a solar cell panel, which enables the solar cell panel to be installed without being restricted by a panel constituting an exterior surface of a building, and which enhances the degree of freedom of the design of the panel and the solar cell panel.SOLUTION: A plurality of roof panels 1 having flat surfaces 71 are joined together to form an exterior face 330 which is entirely flat, and a flexible sheet-like solar battery panel 100 is arranged on the exterior face 330 in such a manner as to straddle at least one joint 1d between the adjacent panels 1, and is joined to the panels 1.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an exterior structure in which solar cell panels are installed on an exterior surface such as the surface of a roof or wall of a building. [Background technology]

[0002] Solar cell panels are known to be installed on roofs of buildings such as ordinary houses, warehouses, buildings, and gymnasiums 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, they are mounted on metal platforms that are 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 panels. Recently, flexible, thin, and lightweight solar cell panels have been developed. [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] The roof surface (exterior surface) disclosed in Patent Document 1 is constructed by arranging multiple rectangular plate-shaped members (panels). The rectangular plate-shaped members have rib-like protrusions on one edge, and sheet-shaped solar cell panels are installed on the flat surface between the protrusions. Therefore, the shape and dimensions of the solar cell panels are restricted by the shape and dimensions of the rectangular plate-shaped members.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide an exterior structure equipped with solar panels that allows solar panels to be installed without being restricted by the panels that make up the exterior surface, thereby increasing the freedom of design of the panels and solar panels. [Means for solving the problem]

[0006] (1) The exterior structure equipped with solar cell panels of the present invention has an exterior surface formed by joining a plurality of panels with flat surfaces, the entire surface of which is flat, and is characterized in that a flexible sheet-like solar cell panel is arranged on the surface of the exterior surface so as to straddle at least one joint between adjacent panels and is joined to the panel.

[0007] (2) The exterior structure equipped with a solar cell panel of the present invention includes, in the above (1), a configuration in which the exterior surface has one edge and the other edge, and the panel has a length extending from the one edge to the other edge of the exterior surface.

[0008] (3) The exterior structure equipped with a solar cell panel of the present invention includes the above-mentioned (1) and (2), in which the exterior surface is provided on at least one of a roof and a wall.

[0009] (4) The exterior structure provided with a solar cell panel of the present invention includes any of the above (1) to (3), in which the solar cell panel is detachably joined to the exterior surface. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide an exterior structure equipped with solar panels that allows solar panels to be installed without being restricted by the panels that make up the exterior surface of a building, thereby increasing the freedom in designing the panels and solar panels. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a building in which an exterior structure according to an embodiment of the present invention is adopted. [Figure 2] 1 is a schematic cross-sectional view of a building showing a roof structure of an embodiment. [Figure 3] FIG. 3 is a partially enlarged view of FIG. 2 showing the roof structure of the embodiment. [Figure 4] 1 is a cross-sectional view showing the joining structure and fixing structure of a roof panel according to an embodiment. [Figure 5] 1 is a perspective view showing a solar cell panel according to an embodiment. [Figure 6] 1 is a plan view showing a state in which a solar cell panel according to an embodiment is installed on an exterior surface of a roof. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a building T that employs an exterior structure according to an embodiment of the present invention and is equipped with solar cell panels 100. FIG. 2 is a cross-sectional view showing the roof structure of the building T. The building T 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 T has a roof 300 and exterior walls 400. The roof 300 according to the embodiment is a gable roof.

[0013] The roof 300 includes a first roof section 310 and a second roof section 320, which are provided on both sides of a ridge 350 at a predetermined angle of inclination. Each of the roof sections 310, 320 is constructed by covering a plurality of rectangular roof panels 1. The roof panel 1 has a flat surface 71, and each of the roof sections 310, 320 has an exterior surface 330 formed entirely flat by joining a plurality of roof panels 1. The exterior surface 330 forms the entire surface of each of the roof sections 310, 320. The roof panel 1 is arranged with its longitudinal direction parallel to the inclination direction of each of the roof sections 310, 320.

[0014] The exterior surface 330 of each roof section 310, 320 has an upper edge (one edge) 331 on the ridge 350 side and a lower edge (the other edge) 332 on the eaves side. The roof panel 1 has a length extending from the upper edge 331 to the lower edge 332 of the exterior surface 330. That is, the exterior surface 330 of each roof section 310, 320 is made up of a single roof panel 1 from the upper end to the lower end in the slope direction (flow direction) indicated by arrow S in Figures 1 and 2, and these roof panels 1 are joined side by side in the width direction (beam direction) indicated by arrow W in Figure 1 to form each roof section 310, 320. Each roof section 310, 320 has a joint 1d extending in the slope direction between adjacent roof panels 1 joined to each other in the width direction.

[0015] As shown in Figure 2, in building T, multiple pillars 5b are erected on foundation 5a, and rafters 8 extending in the diagonal direction are hung and fixed between the upper ends of the pillars 5b. The rafters 8 are arranged at intervals in the width direction, which is the front-to-back direction of the paper in Figure 2. Multiple purlins 9 extending in the width direction are fixed to these multiple rafters 8. The multiple purlins 9 are arranged at intervals in the diagonal direction. The rafters 8 and purlins 9 form the roof framework. The purlins 9 are made of wood, metal channels, or the like.

[0016] As shown in FIGS. 2 and 3, the roof panel 1 is placed on a plurality of purlins 9 and fixed to the purlins 9 for covering.

[0017] FIG. 4 shows the joining structure of adjacent roof panels 1 in the width direction and the structure for fixing them to purlins 9. As shown in FIG. 4, the roof panels 1 are installed on multiple purlins 9, and the joint edge 1A on one end (right end) of the roof panel 1 on the left side in FIG. 4 is fixed to the purlins 9 with a screw 3. Then, the joint edge 1B on the other end (left end) of the roof panel 1 shown on the right side in FIG. 4 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. A joint 1d extending in the slope direction (from the front to the back of the paper in FIG. 4) is provided between the roof panels 1 lined up in the width direction.

[0018] As shown in Figure 4, 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.

[0019] Although there are no restrictions on the material of the front side surface member 10 and the back side surface member 20, a steel plate is suitable, and examples thereof include a hot-dip 55% aluminum-zinc alloy plated steel plate (e.g., Galvalume Steel Plate (registered trademark)) and other color steel plates. 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.

[0020] 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 thereto. 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 correspond to the roof 300 to be constructed, but examples include a vertical length of approximately 13,000 mm, a width of 400 to 1,200 mm, and a thickness of approximately 25 to 300 mm.

[0021] As described above, the joint end 1A of the roof panel 1 is fixed to the purlin material 9 with the screw 3. As shown in Figure 4, the screw 3 penetrates the gutter-shaped portion 6 and the retaining clip 4 that fits into the gutter-shaped portion 6 formed at the joint end 1A, and is then screwed into the purlin material 9 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 9.

[0022] As shown in Figure 4, 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).

[0023] The roof panel 1 constructed as described above has a 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 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 are not deformed into obvious irregularities (corrugated shapes) by bending or pressing, and remain in the flat state of the metal plate material. The surfaces 71 of the multiple roof panels 1 are arranged in the same plane when joined together, making them approximately flush. Therefore, the entire exterior surface 330 formed by the flat surfaces 71 of the multiple roof panels 1 is formed flat.

[0024] As shown in Figure 1, the exterior wall 400 includes a gable-side exterior wall 410 and a girder-side exterior wall 420. Each of the exterior walls 410, 420 is constructed by erecting a plurality of rectangular exterior wall panels 2. The exterior wall panels 2 have a flat surface 91, and each of the exterior walls 410, 420 has an exterior surface 430 whose entire surface is formed flat by joining a plurality of exterior wall panels 2. The exterior wall panels 2 are arranged so that their longitudinal direction is parallel to the vertical direction.

[0025] The exterior surface 430 constituting each exterior wall 410, 420 has an upper edge (one edge) 431 and a lower edge (the other edge) 432. The exterior wall panel 2 has a length extending from the upper edge 431 to the lower edge 432 of the exterior surface 430. That is, the exterior surface 430 of each exterior wall 410, 420 is composed of a single exterior wall panel 2 from the top to the bottom in the vertical direction, and these exterior wall panels 2 are joined together in the horizontal direction to form each exterior wall 410, 420. Each exterior wall 410, 420 has a joint 2d extending in the vertical direction between the exterior wall panels 2 that are adjacent to each other in the horizontal direction and joined to each other. The exterior wall panel 2 may be a metal sandwich panel similar to the roof panel 1 described above.

[0026] As shown in FIGS. 1 to 3, a building T of the embodiment has a plurality of solar cell panels 100 installed at arbitrary positions on a roof 300 and an exterior wall 400.

[0027] 5, 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 panels 100 are installed at any location on the exterior surface 330 of the roof 300 and the exterior surface 430 of the exterior wall 400 .

[0029] In the roof 300, of the first roof section 310 and the second roof section 320, a plurality of solar cell panels 100 are installed on the exterior surface 330 of the first roof section 310. The first roof section 310 faces south, and the power generation efficiency of the solar cell panels 100 is high. The solar cell panels 100 may also be installed on the second roof section 320. The solar cell panels 100 are arranged so as to straddle at least one joint 1d between adjacent roof panels 1. In the embodiment, the solar cell panels 100 straddling two joints 1d and the solar cell panel 100 straddling one joint 1d are shown, but the number of straddling joints 1d may be three or more.

[0030] In the exterior wall 400, one or more solar cell panels 100 are installed on both the gable-side exterior wall 410 and the girder-side exterior wall 420. The solar cell panels 100 are arranged so as to straddle at least one joint 2d between adjacent exterior wall panels 2. In the embodiment, the solar cell panel 100 straddles two joints 2d, but the number of straddled joints 1d may be one, or three or more.

[0031] FIG. 6 is a plan view showing the solar cell panel 100 installed on the exterior surface 330 of the first roof section 310. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. As shown in FIGS. 6 and 7, the solar cell panel 100 is installed by being attached to the surface 71 of the roof panel 1, i.e., the exterior surface 330, using a joining member 210. Here, examples of the joining member 210 include double-sided adhesive tape and magnets, and both double-sided adhesive tape and magnets may be used. In the case of double-sided adhesive tape, the solar cell panel 100 is bonded to the exterior surface 330 by the adhesive. In the case of a magnet, the solar cell panel 100 is bonded to the exterior surface 330 by magnetic force.

[0032] Here, an example will be described in which a magnet is used as the joining member 210. In this case, the face material 10 and the rear side surface material 20 of the roof panel 1 and the exterior wall panel 2 are made of a magnetic metal.

[0033] The joining member 210, i.e., the magnet 210, is a strip-shaped permanent magnet formed into a thin sheet. The magnet 210 has, for example, an adhesive surface on one side, which is adhered to the back surface 120a of the base sheet 120, which is the back surface of the solar cell panel 100, as shown in FIG. 7. As shown in FIG. 6, the magnet 210 is arranged around the four peripheries of the back surface 120a of the base sheet 120, i.e., along substantially the entire 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 magnet 210 is then attached to the surface 71 of the front side surface material 10 of the magnetic roof panel 1. In this way, the solar cell panel 100 is installed on the exterior surface 330 of the roof panel 1 via the magnet 210.

[0034] The above is the joining structure for joining the solar cell panel 100 to the surface 71 of the front side material 10 of the roof panel 1 that constitutes the exterior surface 330 of the roof 300. A construction method for obtaining this joining structure includes, for example, the following steps.

[0035] That is, first, magnets 210 are attached to the outer peripheral edge of the back surface 120a of the base sheet 120 of the solar cell panel 100. Here, if possible, magnets 210 may be attached to the surface 71 of the front side material 10 of the roof panel 1, or magnets 210 may be attached appropriately to both the solar cell panel 100 side and the roof panel 1 side so as not to overlap. Next, the solar cell panel 100 is attached to the surface 71 of the roof panel 1 via the magnets 210.

[0036] The above-described joining structure and installation method for the solar cell panel 100 to the roof 300 can be similarly adopted when installing the solar cell panel 100 on the exterior surface 430 of the exterior wall 400.

[0037] According to the embodiment, the surface 71 of the roof panel 1 and the surface 91 of the exterior wall panel 2 are flat, and the exterior surface 330 of the roof 300 and the exterior surface 430 of the exterior wall 400, which are made up of these panels 1 and 2, are entirely flat and do not have rib-like protrusions. A solar cell panel 100 is installed on each of these exterior surfaces 330 and 430, and the solar cell panel 100 is arranged on the roof 300 so as to straddle the joints 1d between the roof panels 1, In the exterior wall 400, it is arranged so as to straddle the joints 2d between the exterior wall panels 2.

[0038] This allows the flexible sheet-like solar cell panel 100 to be installed in any location without being affected by the joints 1d and 1e. In other words, the solar cell panel 100 can be installed freely without being restricted by the size of the panels 1 and 2 that make up the exterior surfaces 330 and 430, or the size of the solar cell panel 100. This increases the degree of freedom in designing the panels 1 and 2 and the solar cell panel 100.

[0039] Furthermore, by arranging the panels 1 and 2 so as to straddle the joints 1d and 1e, it is possible to reduce the degree to which rainwater, dust, etc. enter the joints 1d and 1e.

[0040] According to the embodiment, the roof panel 1 has a length extending from the upper edge 331 to the lower edge 332 of the exterior surface 330 of the roof 300. Also, the exterior wall panel 2 has a length extending from the upper edge 431 to the lower edge 432 of the exterior surface 430 of the exterior wall 400. Therefore, it is possible to eliminate intermediate joints in the slope direction of the roof 300, and intermediate joints in the vertical direction of the exterior wall 400, which also reduces the degree of intrusion of rainwater, dust, etc. Furthermore, it is possible to reduce the number of panels, thereby improving workability.

[0041] According to the embodiment, when performing maintenance such as repairs or element replacement on the solar cell panel 100 installed on the roof 300 or the exterior wall 400, the solar cell panel 100 can be removed from the exterior surface 330, 430. The solar cell panel 100 can be removed by peeling the solar cell panel 100 together with the magnet 210 from the exterior surface 330, 430 against the magnetic force of the magnet 210. In other words, the solar cell panel 100 is detachably joined to the exterior surface 330, 430. In this way, the solar cell panel 100 can be removed from the roof 300 or the exterior wall 400, improving the ease of renovation. Since the power generation section of the removed solar cell panel 100 remains intact, it can be reused as long as the power generation function is not impaired.

[0042] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be modified within the scope of the present invention. For example, the building on which the solar cell panel 100 is installed also includes a fence. [Explanation of symbols]

[0043] 1 roof panel 1d Joint 2. Exterior wall panels 2d joint 71 Roof panel surface 91 Surface of exterior wall panel 100 solar panels 300 roof 330 Roof exterior surface 331 Upper edge of roof exterior surface (one edge) 332 Lower edge of exterior surface of roof (other edge) 400 Exterior Wall 430 Exterior wall exterior surface 431 Upper edge (one edge) of exterior wall exterior surface 432 Lower edge of exterior wall (other edge) T Building

Claims

1. An exterior structure equipped with solar cell panels, characterized in that it has an exterior surface formed by joining a plurality of panels with flat surfaces, the entire surface of which is flat, and a flexible sheet-like solar cell panel is arranged on the exterior surface so as to straddle at least one joint between adjacent panels and is joined to the panel.

2. 2. The exterior structure equipped with a solar cell panel according to claim 1, wherein the exterior surface has one edge and another edge, and the panel has a length extending from the one edge to the other edge of the exterior surface.

3. 3. The exterior structure equipped with solar cell panels according to claim 1, wherein the exterior surface is provided on at least one of a roof and a wall.

4. 3. The exterior structure equipped with a solar cell panel according to claim 1, wherein the solar cell panel is detachably joined to the exterior surface.

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