Fixing components for solar power generation equipment

Abstract

In particular, when installing solar power generation equipment on mounting surfaces such as lightweight roofs, the present invention provides a fixing component for solar power generation equipment that reduces the number of fixing devices and allows for the miniaturization of the fixing devices. [Solution] A fixing member for a solar power generation device, comprising a rail portion capable of holding the solar power generation device and a fixing jig insertable into the rail portion, wherein the fixing jig comprises a sliding portion slidable relative to the rail portion, a first fixing portion and a second fixing portion coupled to the sliding portion, and a variable portion that can be varied by a load portion, and the variable portion is capable of deforming the sliding portion in conjunction with the first fixing portion and / or the second fixing portion.

Description

Technical Field

[0004] ,

[0001] The present invention relates to a fixing member for a photovoltaic power generation device.

Background Art

[0002] Conventionally, rigid solar cell panels made of silicon semiconductors have been widely used as solar cells. However, since conventional solar cell panels have a certain weight, they cannot be installed on some structures with low load-bearing capacity, or even on an installation surface where they can be installed, but at a location with low load-bearing capacity, so there is a problem that the area of the installation surface cannot be effectively utilized. Generally, when installing a solar cell panel on a roof, after positioning with reference line marking, as shown in FIG. 7, a required number of commercially available ridge part mounting brackets 10 are fixed to the installation surface (ridge part) 2 of the roof 1 with bolts / nuts 11, and a structure is adopted in which the solar cell panel is fixed and attached to the gusset material 12 fixed to this ridge part mounting bracket (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] On the other hand, when the form of the roof as the installation surface is standardized and has high strength, there are few dimensional variations and it is possible to sufficiently fix even with a method with few fixing points. However, when installing a solar cell panel on a lightweight roof by the fixing method as shown in FIG. 1, it is necessary to increase the number of fixing points. In this case, it was necessary to install fixing devices capable of position adjustment in at least two axial directions of the plane. As a result, there was a problem that the fixing devices became large and numerous, imposing a large load on the installation surface. Also, the construction of the solar cell panel was time-consuming.

[0005] The present invention aims to provide an installation structure for a solar power generation sheet that can reduce the number of fixing devices and thus reduce the size of the solar power generation device when installing it on a mounting surface such as a lightweight roof. [Means for solving the problem]

[0006] The present invention includes the following disclosures 1 to 3. The present invention will be described in detail below. [Disclosure 1] A fixing member for a solar power generation device, It has a rail section capable of holding a solar power generation device, and a fixing jig that can be inserted into the rail section, The fixing jig has a sliding part that can slide relative to the rail part, a first fixing part and a second fixing part connected to the sliding part, and a variable part that can be varied by the load part. The fixing member of a solar power generation device is characterized in that the variable part is capable of deforming the sliding part in conjunction with the first fixed part and / or the second fixed part. [Disclosure 2] The fixing member for a photovoltaic power generation device according to disclosure 1, characterized in that the sliding portion is made of stainless steel, aluminum, iron, or an alloy thereof. [Disclosure 3] The fixing member for a photovoltaic power generation device according to disclosure 1 or 2, characterized in that the sliding portion, the first fixing portion, and the second fixing portion are made of the same material. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a fixing member for a solar power generation device that can reduce the number of fixing devices and miniaturize the fixing devices, especially when installing a solar power generation device on an installation surface such as a lightweight roof. Furthermore, according to the present invention, it is possible to reduce the number of man-hours required when installing a solar photovoltaic power generation device and to install it in an earlier time. [Brief explanation of the drawing]

[0008] [Figure 1]This is a schematic perspective view showing an example of a fixing member for a solar power generation device of the present invention. [Figure 2] This is a schematic side view showing an example of a fixing member for the solar power generation device of the present invention. [Figure 3] This is a schematic perspective view showing an example of a fixing jig that constitutes the present invention. [Figure 4] This is a schematic side view showing an example of a fixing jig that constitutes the present invention. [Figure 5] This is a schematic side view showing an example of a fixing jig that constitutes the present invention. [Figure 6] This is a schematic side view showing another example of a fixing member for a photovoltaic power generation device according to the present invention. [Figure 7] This is a schematic perspective view illustrating an example of a conventional method for fixing a solar power generation system. [Modes for carrying out the invention]

[0009] The present invention will be described in more detail below with reference to specific embodiments, but the present invention is not limited to these embodiments.

[0010] Figure 1 shows a schematic perspective view illustrating an example of a solar power generation system being installed on a roof using the fixing member of the solar power generation system of the present invention. Figure 2 shows a schematic side view illustrating an example of a solar power generation system being installed on a roof using the fixing member of the solar power generation system of the present invention. Figure 3 shows a schematic perspective view illustrating an example of a fixing jig constituting the fixing member of the solar power generation system of the present invention. Figures 4 and 5 show schematic side views illustrating an example of a fixing jig constituting the fixing member of the solar power generation system of the present invention. Figure 1 shows an example of a solar power generation system being installed on a folded-roof (lightweight) roof with a seam-fastened roofing system. As shown in Figure 1, the solar power generation device 5 is positioned on an installation surface (corrugated metal roof) 2 having a seam portion on a protruding part, so as to cross the rail portion 4. The solar power generation device 5 is fixed by being sandwiched between the rail portion 4. Furthermore, as shown in Figure 2, a fixing jig 3 is inserted into the end of the rail section 4, and the rail section 4 is fixed to the installation surface 2 by the fixing jig 3 at the seam portion of the installation surface 2. Furthermore, in the fixing member for the photovoltaic power generation device of the present invention, as shown in Figure 2, the photovoltaic power generation device 5 may be fixed on the outside of the rail portion 4 (opposite the side on which the photovoltaic power generation device 5 is installed) so as to cover the upper part of the fixing jig, or as shown in Figure 6, the photovoltaic power generation device 5 may be fixed on the inside of the rail portion 4 (the side on which the photovoltaic power generation device 5 is installed).

[0011] As shown in Figure 3, the fixing jig 3 has a sliding part 31 that can slide relative to the rail part 4, a first fixing part 32 and a second fixing part 34 connected to the sliding part 31, and a variable part 33 that can be varied by the load part 35. The variable part 33 can be fixed to the installation surface (corrugated roof) 2 by adjusting the load part 35, and the variable part 33 is configured to deform the sliding part 31 in conjunction with the first fixing part 32 and / or the second fixing part 34. Figure 4 is a schematic side view of an example of a fixing jig 3 in which the variable part 33 deforms the sliding part 31 in conjunction with the first fixed part 32. In the fixing jig 3, the first fixed part 32 and the variable part 33 are separate components, but by tightening (pushing in) the load part 35, the first fixed part 32 can move in conjunction with the variable part 33 in the longitudinal direction of the rail part 4 (the direction opposite to the X direction in Figure 4). As a result, the sliding part 31 deforms into a concave shape, allowing pressure to be applied via the rail part 4, and consequently making it possible to fix the solar power generation device 5 fixed to the upper part even more firmly. Figure 5 is a schematic side view of another example of the fixing jig 3 in which the variable part 33 deforms the sliding part 31 in conjunction with the second fixed part 34. In the fixing jig 3, the second fixed part 34 and the variable part 33 are separate components, but by tightening (pulling in) the load part 35, the second fixed part 34 can also move in the longitudinal direction of the rail part 4 (the X direction in Figure 4) in conjunction with the variable part 33. As a result, the sliding part 31 deforms into a convex shape, allowing pressure to be applied through the rail part 4, and consequently making it possible to fix the solar power generation device 5 fixed to the upper part even more firmly.

[0012] When installing a photovoltaic power generation device on a lightweight roof such as a folded-plate roof, it is necessary to increase the number of fixing points in order to prevent poor fixing due to dimensional variations of the roof. In this case, it was necessary to install fixing devices capable of position adjustment at least in two axial directions on a plane. As a result, there was a problem that the fixing devices became large and numerous, imposing a large load on the installation surface. In the present invention, by using a fixing member for a photovoltaic power generation device having a rail portion capable of holding the photovoltaic power generation device and a fixing jig of a predetermined shape that can be inserted into the rail portion, it is possible to provide a fixing member for a photovoltaic power generation device that can reduce the number of fixing devices and miniaturize the fixing devices. Further, according to the present invention, when installing a solar cell photovoltaic power generation device, it is possible to reduce the man-hours and install it at an earlier stage. For example, when installing a solar cell photovoltaic power generation device by the method shown in FIG. 7, steps of fixing an existing fixture to a ridge portion, fixing a frame to the fixture, and holding and installing a solar cell panel on the frame are required. However, in the present invention, since the fixture is not required, the man-hours can be reduced.

[0013] In this specification, "up" refers to the direction on the side where light is incident, and "down" refers to the direction on the installation surface side. The "longitudinal direction of the rail portion" refers to the extension direction of the rail portion (the longitudinal direction of the ridge portion), and the "width direction of the rail portion" refers to the direction perpendicular to the longitudinal direction of the rail portion. "Parallel" includes not only perfect parallelism but also substantial parallelism within a certain error range.

[0014] The above installation surface is not particularly limited, but in the case of a roof with low strength, such as a folded-plate roof in which concave portions and convex portions are arranged in parallel and having a ridge portion, the effects of the present invention are likely to be exhibited. Examples of the above installation surface include, in addition to a folded-plate roof, a vertically tiled roof such as a tile-roofed roof. Further, the above installation surface may have a slope or may not have a slope, but it is preferable to have a slope. By having a slope on the installation surface, the arrangement of the photovoltaic power generation device can be optimized, and thus the power generation efficiency can be further increased.

[0015] The material of the mounting surface is not particularly limited and includes, for example, metals such as steel, aluminum alloy, stainless steel, nickel alloy, and copper alloy; hard plastics such as polyvinyl chloride, polycarbonate, acrylic, polypropylene, ABS resin, and AS resin; rubber; ceramics; or composite materials thereof.

[0016] The above-described photovoltaic power generation device is a device that generates electricity by receiving sunlight. The above-described photovoltaic power generation device is not particularly limited and may be a solar cell panel using silicon semiconductors, or a sheet-shaped flexible solar cell using organic semiconductors such as perovskite solar cells.

[0017] While it is preferable that the solar power generation equipment be positioned so as to traverse the spaces between the protrusions of the corrugated metal roof, it is preferable that the solar power generation equipment be positioned perpendicular to the extension direction of the recesses and protrusions, as this further suppresses deformation of the solar power generation equipment. Furthermore, it is preferable that the above-mentioned solar power generation device is positioned so as not to come into contact with the recesses of the corrugated metal roof.

[0018] The above-described fixing jig applies a load to the first and / or second fixing part by adjusting the load-bearing part, thereby applying bending stress to the sliding part. This makes it possible to deform the sliding part into a convex or concave shape. The above-mentioned fixing jig is shaped to be insertable into the rail section. In the case of insertion, it is preferable that the jig be shaped to be insertable into the end of the rail section.

[0019] The sliding part described above has a shape that allows it to slide relative to the rail. It is preferable that the sliding portion described above has a longitudinal direction in at least one direction. In this case, it is preferable that the longitudinal direction is the same as the longitudinal direction of the rail portion.

[0020] The sliding part described above is preferably made of aluminum, stainless steel, iron, or an alloy thereof. Other materials include hard resins such as PVC, PC, and ABS. Furthermore, it is preferable that the sliding part, the first fixed part, and the second fixed part are made of the same material. Metal offers excellent weather resistance and durability, while resin offers excellent mass-producibility, allowing for appropriate selection depending on the installation location.

[0021] The sliding portion described above preferably has an elastic modulus of 3 GPa to 50 GPa. By keeping it within this range, the sliding portion can be properly fixed by deforming appropriately. The above modulus of elasticity can be measured according to JIS Z 2241 or JIS K 7161.

[0022] The first and second fixing parts are connected to the sliding part. Furthermore, it is preferable that the first and second fixing parts are arranged along the longitudinal direction of the sliding part. In this case, it is preferable that the first fixing part is on the load side and the second fixing part is on the opposite side of the load.

[0023] The shape of the variable part described above is not particularly limited as long as the solar power generation device can be fixed to a part of the installation surface (such as a corrugated metal roof) such as a seam. For example, it may be fixed by directly clamping the variable part to the seam as shown in Figure 4, or it may be fixed by clamping the variable part to the seam using the first fixing part and the second fixing part without the variable part and the seam being in direct contact, as shown in Figure 5. Furthermore, methods for adjusting the variable part by the load include moving the variable part by compressive or tensile force using screws, bolts, etc. The direction of movement of the variable part may be, for example, the X direction in Figures 4 and 5, or the opposite direction of the X direction, but it is preferable that it be in a direction that clamps a part of the installation surface (such as the seam) (the longitudinal direction of the rail).

[0024] The material of the variable part mentioned above can be any material that has sufficient rigidity to be fixed to the seam, and examples include metals such as steel, aluminum alloy, stainless steel, nickel alloy, and copper alloy; hard plastics such as polyvinyl chloride, polycarbonate, acrylic, polypropylene, ABS resin, AS resin, and PPS resin; rubber; ceramics; or composite materials thereof.

[0025] The length of the fixing jig in the longitudinal direction (the longitudinal direction of the rail section [X direction in Figure 3]) is preferably such that the fixing jig cannot be easily removed once inserted into the rail section. Furthermore, it is preferable that the fixing jig is inserted so as to fit into the end of the rail section, and the load-bearing portion may protrude from the rail section as shown in Figure 1. It is preferable that the fixing jig be placed at both ends of the rail section. Furthermore, the length of the sliding portion in the longitudinal direction (the longitudinal direction of the rail portion [X direction in Figure 3]) is preferably 20 mm or more and 200 mm or less. A length of 20 mm or more makes position adjustment easier, and a length of 200 mm or less makes handling easier during installation. More preferably 40 mm or more, even more preferably 60 mm or more, 150 mm or less is more preferable, and 100 mm or less is even more preferable. Furthermore, the width of the sliding portion (length in the width direction of the rail portion [Y direction in Figure 3]) is preferably 5 mm or more and 50 mm or less. The height of the above-mentioned fixing jig (length in the Z direction in Figure 3) is preferably between 10 mm and 60 mm.

[0026] The shape of the rail section described above is not particularly limited, but it is preferable that it has a gap that allows the sliding part to slide, and that the shape is such that the sliding part does not move relative to the rail in any direction other than the direction in which it slides. Furthermore, the cross-sectional shape of the rail portion is not particularly limited as long as a gap is provided with a width that facilitates the sliding portion to slide.

[0027] While there are no restrictions on the width of the gap in the rail section described above, it is preferably 5 mm or more, more preferably 8 mm or more, and even more preferably 10 mm or more. This allows for smooth sliding at the sliding part. Furthermore, the width of the gap is preferably 50 mm or less, more preferably 45 mm or less, and even more preferably 40 mm or less. This ensures that the rail section and the sliding part fit together properly, preventing the fixing jig from falling or the like.

[0028] The width of the rail section (length in the width direction when installed) is not particularly limited, but is preferably 5 mm to 50 mm, and more preferably 10 mm to 40 mm. By setting it within this range, the effective power generation area can be maximized while appropriately suppressing deformation of the photovoltaic power generation device.

[0029] The rail section described above has a shape capable of holding a solar power generation device. Such a shape is not particularly limited as long as it can hold the solar power generation device, and examples of methods for holding it include bolts, screws, adhesive, pins, magnets, etc. Furthermore, it is preferable that the end of the solar power generation device is held by the rail section, and that the holding portion is positioned above the gap in the rail section. In particular, it is preferable to install the rail section so that its longitudinal direction is perpendicular to the longitudinal direction of the convex portion (seam portion) of the corrugated metal roof.

[0030] The material of the rail section is not particularly limited, but it is preferable that it be made of a hard resin, metal, or composite reinforced material, as this allows for more secure fixing of the solar power generation device and better suppression of deformation.

[0031] (Installation method) An example of a method for fixing (installing) a solar power generation device using the fixing member of the present invention will be described. First, the worker holds the solar power generation device on the upper part of the rail so that the longitudinal direction of the rail is perpendicular to the longitudinal direction of the convex portion (seam portion) of the corrugated metal roof. Next, the fixing jig is inserted into the end of the rail and the movable part is tightened toward the seam portion to fix the fixing jig to the seam portion of the corrugated metal roof. Finally, by further adjusting the movable part, the sliding part is deformed into a convex or concave shape, thereby fixing the solar power generation device and creating the installation structure for the solar power generation device using the fixing member of the present invention. [Explanation of symbols]

[0032] 1. Roof 2 Installation surface 3 Fixing jig 31 Sliding part 32 1st fixed part 33 Variable section 34 Second fixed part 35 Load-bearing section 4 Rail section 5. Solar power generation equipment

Claims

1. A fixing member for a solar power generation device, It has a rail section capable of holding a solar power generation device, and a fixing jig that can be inserted into the rail section, The fixing jig has a sliding part that can slide relative to the rail part, a first fixing part and a second fixing part connected to the sliding part, and a variable part that can be varied by the load part. The fixing member of a solar power generation device is characterized in that the variable part is capable of deforming the sliding part in conjunction with the first fixed part and / or the second fixed part.

2. The fixing member for the solar power generation device according to claim 1, characterized in that the sliding part is made of stainless steel, aluminum, iron, or an alloy thereof.

3. The fixing member for a solar power generation device according to claim 1 or 2, characterized in that the sliding portion, the first fixing portion, and the second fixing portion are made of the same material.

Images