Stand

Abstract

To provide a frame capable of improving workability in installation.SOLUTION: A frame 1 for supporting and fixing a solar cell module 2 includes a support member 5 mounted across a plurality of foundations 3 fixed to an installation surface 100, and a plurality of crosspiece members 6 laid across the plurality of support members 5 in parallel with each other and mounted with the solar cell module 2. Each of the plurality of support members 5 has a lower surface portion fixed to the plurality of bases 3, an upper surface portion to which the plurality of crosspiece members 6 are attached, and a side surface portion connecting the lower surface portion and the upper surface portion. The side surface portion has a plate shape, and an end portion on the upper surface portion side is inclined with respect to an end portion on the lower surface portion side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a mounting base for supporting and fixing a solar cell module. [Background technology]

[0002] In recent years, solar cell devices for home use have become increasingly popular, and many of these are installed on the roofs of houses. Solar cell devices installed outdoors are exposed to wind and rain, so it is preferable that they be firmly fixed to an installation surface such as the ground or a roof, and various installation structures have been proposed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-048632 Summary of the Invention [Problem to be solved by the invention]

[0004] A conventional solar cell array is equipped with columnar support members that are erected vertically on a horizontal installation surface to support the four corners of the solar cell array, and vertical and horizontal rail members that are connected to the top of the support members. The columnar support members are placed on a foundation that functions as the base of the solar cell array.

[0005] In the solar cell array described above, multiple columnar support members are each placed on a single foundation, which makes assembly complicated. Furthermore, because each columnar support member is placed on a separate foundation, factors such as misalignment or tilting of the support members can cause the rail members to be misaligned or not level with the installation surface, potentially resulting in twisting of the mounting frame and solar panels. Such twisting can reduce installation workability and the strength of the solar cell module's attachment.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a mounting base that can improve the workability during installation and the fixing strength of solar cell modules. [Means for solving the problem]

[0007] The mounting base according to the present disclosure is a mounting base for supporting and fixing solar cell modules, and comprises support members attached across a plurality of bases fixed to an installation surface, and a plurality of crosspiece members parallel to each other and on which the solar cell modules are attached, each of the support members having a lower surface portion fixed to the plurality of bases, an upper surface portion on which the plurality of crosspiece members are attached, and a side surface portion connecting the lower surface portion and the upper surface portion, and the end of the side surface portion on the upper surface portion side is inclined relative to the end of the lower surface portion side.

[0008] In the mount according to the present disclosure, the lower surface portion may be provided with a lower surface hole into which a fixing portion of the base is inserted, and the lower surface hole may be an elongated hole.

[0009] In the mount according to the present disclosure, the upper surface portion may be provided with an upper surface hole into which a connecting member is inserted, the upper surface hole being an elongated hole, and the support member and the crosspiece member may be connected via the connecting member.

[0010] In the gantry according to the present disclosure, the support member may have a Z-shaped cross section.

[0011] In the mount according to the present disclosure, the support member may have a C-shaped cross section.

[0012] In the mount according to the present disclosure, the lower surface portion may be provided with a lower surface hole into which a fixing portion of the base is inserted, and the upper surface portion may be provided with a notch at a position that overlaps with the lower surface hole when viewed from above. [Effects of the Invention]

[0013] According to the present disclosure, it is possible to improve the workability in installation and the fixing strength of the solar cell module. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a top view of a solar power generation system using a mounting base according to a first embodiment of the present disclosure. [Figure 2] FIG. 1 is a side view of a solar power generation system using a mounting base according to a first embodiment of the present disclosure. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. 2 is a schematic top view of a support member. [Figure 6] FIG. 4 is a side view of the support member from a different viewpoint than that of FIG. 3. [Figure 7] FIG. 10 is a side view showing a modified example of the support member. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. 10 is an exploded perspective view showing a structure in which a support member and a crosspiece member are fastened together using a support backing plate. [Figure 11] FIG. [Figure 12] FIG. [Figure 13] FIG. 2 is an exploded perspective view showing the fixing structure of the fixing metal fittings and the crosspiece members. [Figure 14] 3 is an enlarged schematic side view showing the vicinity of the first rail member of FIG. 2. FIG. [Figure 15] 3 is an enlarged schematic side view showing the vicinity of the second crosspiece member of FIG. 2. FIG. [Figure 16] FIG. 10 is a schematic top view of a solar power generation system according to a first modified example. [Figure 17] FIG. 4 is a schematic explanatory diagram showing the positional relationship between a support member and a base. [Figure 18] FIG. 10 is a schematic top view of a solar power generation system according to a second modified example. [Figure 19]FIG. 10 is a side view of a solar power generation system using a mounting base according to a second embodiment of the present disclosure. [Figure 20] FIG. [Figure 21] 20 is an enlarged schematic side view showing the vicinity of the first hooked bar member in FIG. 19. FIG. [Figure 22] 20 is an enlarged schematic side view showing the vicinity of the second hooked bar member in FIG. 19. FIG. [Figure 23] FIG. 11 is a schematic enlarged top view showing one end side of a support member in a third embodiment of the present disclosure. [Figure 24] FIG. 11 is a schematic enlarged top view showing the other end side of the support member in the third embodiment of the present disclosure. [Figure 25] FIG. 4 is a schematic cross-sectional view showing the vicinity of a first notch of the support member. [Figure 26] FIG. 4 is a schematic cross-sectional view showing the vicinity of a second notch of the support member. DETAILED DESCRIPTION OF THE INVENTION

[0015] (First embodiment) Hereinafter, a solar power generation system using a mounting frame according to a first embodiment of the present disclosure will be described with reference to the drawings.

[0016] Fig. 1 is a top view of a solar power generation system using a mounting base according to a first embodiment of the present disclosure, and Fig. 2 is a side view of a solar power generation system using a mounting base according to a first embodiment of the present disclosure. Note that in Fig. 1, each member is shown in a perspective manner in consideration of ease of viewing the drawing.

[0017] A mount 1 according to the first embodiment of the present disclosure includes support members 5 and crosspiece members 6, and supports and fixes a solar cell module 2 on an installation surface 100. FIG. 1 shows a solar power generation system in which one solar cell module 2 is supported and fixed by the mount 1. The installation surface 100 is a surface that is appropriately set as an area for installing the solar cell module 2, and is, for example, a horizontal surface such as the roof surface of a flat roof. In this embodiment, the installation surface 100 is the roof surface of a flat roof. For ease of explanation below, one direction horizontal to the installation surface 100 may be referred to as the horizontal direction X, a direction perpendicular to the horizontal direction X may be referred to as the vertical direction Y, and a direction perpendicular to the installation surface 100 may be referred to as the height direction Z.

[0018] The solar cell module 2 has, for example, a rectangular light-receiving surface and is composed of a solar cell panel that photoelectrically converts sunlight and a frame that holds the solar cell panel. The solar cell module 2 is connected by wiring (not shown) as appropriate, and supplies the generated electricity to a connected load or the like via the wiring.

[0019] The base 3 is fixed to the installation surface 100, and a support member 5 is attached to it. The base 3 has a fixing portion 3a, and the support member 5 is attached to the fixing portion 3a. The fixing portion 3a is, for example, a bolt for attaching a structure to the roof surface. The base 3 is installed using either the beam support method or the anchor disk method. In the beam support method, a support with a fixing portion (bolt) is fixed to a beam placed below the roof material. The position of the support is determined by the position of the beam, so construction error is small. In the anchor disk method, the anchor bolt is fixed to a flat roof panel (ALC panel) made of lightweight concrete, which is the roof material for a flat roof. The anchor disk method allows for a high degree of freedom in installing anchor bolts after installation, but is prone to construction error, for example, an error of about ±5 to 10 mm. In Figure 2, the base 3 is an anchor disk, and specifically, the anchor disk has a flat plate portion 3b that is in direct contact with the installation surface 100 and is fixed to the flat roof panel with screws, nails, etc., and a fixing portion 3a (see Figure 4 described later) that extends upward for fastening to the lower surface portion (lower surface plate 5b) of the support member 5. Note that with respect to the base 3, members such as nuts and washers may be attached to the fixing portion 3a, and these members may be used to adjust the height at which the support member 5 is supported (the height from the installation surface 100 to the lower surface plate 5b).

[0020] The support members 5 are members (base plates) attached at two locations to two bases 3 (fixing portions 3a) spaced apart in the vertical direction Y. FIG. 1 shows a configuration in which the mount 1 has two support members 5, and to distinguish between them, one (the left side in FIG. 1) may be referred to as a first support member 51 and the other (the right side in FIG. 1) as a second support member 52. The two support members 5 are spaced apart in the horizontal direction X, with the first support member 51 located closer to the left end of the solar cell module 2 and the second support member 52 located closer to the right end of the solar cell module 2. The detailed structure of the support members 5 will be described later with reference to FIGS. 3 to 5.

[0021] The support member 5 is supported at two locations by two bases 3 spaced apart in the vertical direction Y. The distance between the two bases 3 (fixing portions 3a) (base-to-base distance KL) corresponds to the length of the solar cell module 2 in the vertical direction Y, e.g., 900 mm. In this embodiment, the base-to-base distance KL is not constant and includes an error. For example, if the bases 3 are designed to be arranged with the base-to-base distance KL set to 900 mm, a construction error of approximately ±5 to 10 mm will occur. The support member 5 has a length spanning multiple bases 3 (fixing portions 3a) spaced apart in the vertical direction Y, and has a length spanning at least two bases 3 (fixing portions 3a). In this embodiment, a configuration in which one support member 5 is supported by two bases 3 has been described, but this is not limited thereto, and one support member 5 may be supported by three or more bases 3.

[0022] The crosspiece 6 has a length in the horizontal direction X and is supported by multiple support members 5. FIG. 1 shows a configuration in which the frame 1 has two crosspieces 6. To distinguish between them, one (the lower crosspiece in FIG. 1) is sometimes referred to as the first crosspiece 61 and the other (the upper crosspiece in FIG. 1) is sometimes referred to as the second crosspiece 62. The two crosspieces 6 are spaced apart in the vertical direction Y and are arranged parallel to each other. The first crosspiece 61 is arranged along the front end of the solar cell module 2, and the second crosspiece 62 is arranged along the rear end of the solar cell module 2. In other words, the solar cell module 2 is supported at its front end by the first crosspiece 61 and its rear end by the second crosspiece 62. The crosspiece 6 spans the first support member 51 and the second support member 52. The length of the crosspiece 6 in the horizontal direction X needs to be at least longer than the distance between the first support member 51 and the second support member 52. The length of the crosspiece members 6 in the lateral direction X may be changed depending on the length and number of solar cell modules 2 to be installed, as long as it is long enough to support the solar cell modules 2. The detailed structure of the crosspiece members 6 will be described later with reference to FIG.

[0023] When the solar power generation system is viewed from above, support backing plates 8 are attached to the portions (four portions in FIG. 1) where the support members 5 and the crosspiece members 6 intersect. The support backing plates 8 are members that are placed at the fastening portions between the support members 5 and the crosspiece members 6. The detailed structure of the support backing plates 8 will be described later with reference to FIG. 9.

[0024] The fixing bracket 4 shown in Fig. 2 is a member for attaching the solar cell module 2 to the crosspiece 6. In this embodiment, the fixing bracket 4 is placed at a position different from the intersection of the support member 5 and the crosspiece 6. However, this is not limiting, and the fixing bracket 4 may also serve to fix the solar cell module 2 to the crosspiece 6 and to fix the support member 5 to the crosspiece 6, which is the function of the support backing plate 8. The detailed structure of the fixing bracket 4 will be described later with reference to Fig. 11.

[0025] Fig. 3 is a side view of the support member, Fig. 4 is a schematic bottom view of the support member, Fig. 5 is a schematic top view of the support member, Fig. 6 is a side view of the support member from a different perspective than Fig. 3, and Fig. 7 is a side view showing a modified example of the support member. In Figs. 4 and 5, both ends are shown enlarged and the center is omitted for ease of viewing. Also, Figs. 6 and 7 show the support member 5 as viewed from the left end to the right end in Fig. 3.

[0026] The support member 5 has a lower surface portion (lower plate 5b) fixed to the base 3, an upper surface portion (upper plate 5c) to which the cross-section members 6 are attached, and a side surface portion (side plate 5a) connecting the lower plate 5b and the upper plate 5c. In the support member 5 of this embodiment, the lower plate 5b, the upper plate 5c, and the side surface plate 5a are integrally formed. The side surface plate 5a is formed to connect the end of the lower plate 5b to the end of the upper plate 5c, and is formed, for example, by bending a flat plate. That is, as shown in FIG. 6, the cross section of the support member 5 is C-shaped. Note that instead of the side surface plate 5a being connected to the end of the upper plate 5c on the same side as the end of the lower plate 5b as shown in FIG. 6, the side surface plate 5a may be connected to the end of the upper plate 5c on the opposite side as the end of the lower plate 5b, as in a modified example of the support member 5 shown in FIG. 7, so that the cross section of the support member 5 is Z-shaped. As such, the support member 5 can be shaped such that the upper plate 5c and the lower plate 5b extend in the same direction from the side plate 5a (C-shaped), or in a Z-shaped configuration where they extend in opposite directions. The C-shaped configuration has the advantage that the support member 5 is self-standing, making installation work easier. The Z-shaped configuration has the advantage that the upper plate 5c does not get in the way when attaching the lower plate 5b to the base 3 (fixed portion 3a). The Z-shaped configuration also has the advantage that the support members 5 can be stacked on top of each other, improving transportation efficiency.

[0027] The side plate 5a has a generally trapezoidal or triangular shape in side view, and the end of the side plate 5a on the upper plate 5c side is inclined relative to the end on the lower plate 5b side. When viewed from the side, the side plate 5a is short at one end (the left end in FIG. 3 ) and long at the other end (the right end in FIG. 3 ). That is, the length from the lower plate 5b to the upper plate 5c at one end of the side plate 5a (first plate height TL1) is shorter than the length from the lower plate 5b to the upper plate 5c at the other end (second plate height TL2). As a result, the upper plate 5c is inclined so that its heights differ from each other at one end and the other end. The inclination angle θ shown in FIG. 3 indicates the angle at which the upper plate 5c is inclined relative to the lower plate 5b, and is set to 5 degrees in this embodiment. The inclination angle θ may be changed as appropriate depending on the location where the solar power generation system is installed, and is set to, for example, 1 to 30 degrees. In this embodiment, the side plate 5a is plate-shaped, but the side plate 5a may also be frame-shaped, lattice-shaped, or fence-shaped, as long as the edges (ends) are continuous when viewed from the side and the outer shape is approximately trapezoidal or approximately triangular when viewed from the side.

[0028] As described above, a slope that was conventionally formed using two or more supports can now be formed with a single support member 5. Furthermore, because the support member 5 is sloped, the solar cell module 2 can be easily installed at an incline. Furthermore, if the support member 5 is formed from a folded flat plate, each part is connected and integrated, thereby achieving high strength. Furthermore, by making the side surface of the support member 5 plate-shaped, high strength can be achieved.

[0029] As shown in FIG. 4, the lower plate 5b has lower holes (first lower hole 5d and second lower hole 5e) at two locations, one at one end and the other at the other end, corresponding to the two bases 3 (fixing portions 3a). The distance between the first lower hole 5d and the second lower hole 5e is set to be approximately the same as the base-to-base distance KL (fixing portion-to-fixing portion distance). Specifically, the first lower hole 5d is a round hole with approximately the same diameter as the fixing portions 3a, and the second lower hole 5e is an elongated hole with a wider width than the first lower hole 5d. For example, the diameter of the first lower hole 5d is 13 mm for fixing portions 3a with a diameter of 12 mm. By making the first lower hole 5d a round hole with approximately the same diameter as the fixing portions 3a, the position at which the bases 3 (fixing portions 3a) are fixed is determined. The second lower surface hole 5e is an elongated hole that is long in the direction from one end (the left end in FIG. 4) to the other end (the right end in FIG. 4), allowing the position where it is fixed to the base 3 to be adjusted. Specifically, the width of the second lower surface hole 5e in the vertical direction Y is 30 mm. Because the second lower surface hole 5e is an elongated hole, even if the base 3 (fixing portion 3a) is misaligned, the fixing portion 3a can be inserted into the first lower surface hole 5d, allowing the support member 5 to be fixed to the base 3 (fixing portion 3a). Here, misalignment refers to the distance between the two bases 3 (fixing portions 3a) (base-to-base distance KL) being different from the design value.

[0030] FIG. 4 shows a configuration in which one of the two underside holes is a round hole and the other is an elongated hole, but this is not limited thereto, and both underside holes may be elongated holes. Also, in a configuration in which one support member 5 is supported by three or more bases 3, all of the underside holes may be elongated holes. By making multiple underside holes elongated holes, the amount of adjustment becomes larger. Note that a method of correcting errors due to misalignment of the bases 3 by making the underside holes elongated will be described later with reference to FIG. 16.

[0031] As shown in FIG. 5, the top plate 5c has top holes into which connecting members 7 (see FIG. 13, which will be described later) are inserted. In this embodiment, the top plate 5c has top holes (first top hole 5f and second top hole 5g) at two locations, one at one end and the other at the other end, corresponding to the two crosspiece members 6. The first top hole 5f and the second top hole 5g are elongated holes that are long in the direction from the one end (the left end in FIG. 5) to the other end (the right end in FIG. 5). Even if the support members 5 cannot be arranged parallel to each other due to misalignment of the base 3, the positions into which the connecting members 7 are inserted can be shifted in the vertical direction Y, thereby enabling the crosspiece members 6 to be arranged parallel to each other. A specific correction method will be described with reference to FIG. 16, which will be described later.

[0032] As shown in Fig. 5, the top plate 5c has plate locking portions (first plate locking portion 5h and second plate locking portion 5i) that are cut out and protrude upward. The first plate locking portion 5h is provided near the first top hole 5f, and the second plate locking portion 5i is provided near the second top hole 5g. When assembling the pedestal 1, the crosspiece members 6 can be temporarily fastened in place by hooking and locking them onto the plate locking portions.

[0033] FIG. 8 is a perspective view of the crosspiece member.

[0034] As shown in FIG. 8, the crosspiece 6 has a boundary wall 6a near the center in the width direction. A rail portion 6b with a U-shaped cross section is formed on one side of the boundary wall 6a, and an elongated hole 6f is formed at the bottom of the rail portion 6b. A plurality of elongated holes 6f are provided along the direction in which the rail portion 6b extends. The rail portion 6b has a width slightly wider than the depth of the fixing bracket 4 and the support backing plate 8, allowing the fixing bracket 4 and the support backing plate 8 to be arranged inside the rail portion 6b. The upper end of the side wall 6c of the rail portion 6b forms a first base portion 6e on which the underside of the front end of the solar cell module 2 is placed, as shown in FIG. 14, which will be described later.

[0035] On the other side of the boundary wall 6a, as shown in Fig. 15 described later, a second pedestal portion 6g is formed on which the lower surface of the rear end side of the solar cell module 2 is placed. The second pedestal portion 6g is formed in a stepped shape and is set at the same height as the first pedestal portion 6e. The boundary wall 6a stands perpendicular to the upper surface of the second pedestal portion 6g.

[0036] FIG. 9 is a perspective view of the support backing plate.

[0037] The support plate 8 has a bottom plate 8a, a first standing plate 8b extending vertically from one end of the bottom plate 8a, and a second standing plate 8c extending vertically from the other end of the bottom plate 8a. The bottom plate 8a is provided with a perforation 8d into which the connecting member 7 is inserted. As described above, the depth of the bottom plate 8a is slightly shorter than the width of the rail portion 6b. In addition, extension plates 8e are provided on both ends of the first standing plate 8b, extending toward the second standing plate 8c.

[0038] FIG. 10 is an exploded perspective view showing a structure in which a support member and a crosspiece member are fastened together using a support backing plate.

[0039] When assembling the pedestal 1, the crosspiece 6 is placed on the support member 5 so that the elongated hole 6f aligns with the top hole (first top hole 5f or second top hole 5g) provided in the top plate 5c. The bottom plate 8a of the support backing plate 8 is inserted inside the rail portion 6b. With the bottom plate 8a, rail portion 6b, and top plate 5c stacked, connecting members 7 such as bolts are inserted into the perforations 8d, elongated holes 6f, and top holes of the support backing plate 8 and fastened with nuts or the like from the opposite side, thereby fixing the crosspiece 6 to the support member 5. Note that FIG. 10 shows a configuration in which the connecting members 7 are inserted from below the top plate 5c and fastened with nuts above the support backing plate 8, but this is not limiting; the connecting members 7 may also be inserted from above the support backing plate 8. Also, while FIG. 10 illustrates the first top hole 5f, the crosspiece 6 can also be fixed to the support member 5 using the second top hole 5g.

[0040] FIG. 11 is a perspective view of the fixing bracket.

[0041] The fixing bracket 4 has a bottom plate 4a, side walls 4b extending vertically from both ends of the bottom plate 4a, and an upright plate 4c extending vertically from one side of the bottom plate 4a. The bottom plate 4a is provided with a hole 4d into which the connecting member 7 is inserted. As described above, the depth of the bottom plate 4a is slightly shorter than the width of the rail portion 6b.

[0042] A receiving portion 4e is formed at the upper end of the side wall 4b, extending outward. The height of the receiving portion 4e is set so that when the fixing bracket 4 is placed on the rail portion 6b of the crosspiece 6, it is at the same height as or slightly lower than the first pedestal portion 6e and the second pedestal portion 6g of the crosspiece 6.

[0043] The upper end of the standing plate 4c is formed with two first engagement portions 4f extending toward the bottom plate 4a and a second engagement portion 4g extending in the opposite direction from the first engagement portions 4f. The two first engagement portions 4f are provided on both sides of the upper end of the standing plate 4c, and the second engagement portion 4g is provided in the center of the upper end of the standing plate 4c, with the two first engagement portions 4f and the second engagement portions 4g being arranged alternately. Furthermore, abutment plates 4h extending toward the side wall 4b are provided on both ends of the standing plate 4c. The fixing bracket 4 is fixed to the crosspiece member 6 using plate nuts 20, as shown in FIG. 13, which will be described later.

[0044] FIG. 12 is a perspective view of a plate nut.

[0045] The plate nut 20 has a flat main plate 20a and first and second protruding pieces 20b and 20c extending upward from the main plate 20a, and a nut hole 20d into which the connecting member 7 is inserted is provided near the center of the main plate 20a. The main plate 20a abuts against the outer bottom surface of the rail portion 6b of the crosspiece 6, and the distance between the first and second protruding pieces 20b and 20c is slightly longer than the rail portion 6b.

[0046] FIG. 13 is an exploded perspective view showing the fixing structure of the fixing metal fittings and the crosspiece members.

[0047] The fixing bracket 4 is inserted so that the bottom plate 4a faces the boundary wall 6a and is positioned inside the rail portion 6b. With the bottom plate 4a and rail portion 6b overlapping, the plate nut 20 is placed on the bottom side of the rail portion 6b. That is, the crosspiece 6 is sandwiched between the fixing bracket 4 and the plate nut 20, and positioned so that the drilling hole 4d, the elongated hole 6f, and the nut hole 20d overlap. Then, the fixing bracket 4 can be fixed to the crosspiece 6 by inserting and fastening a connecting member 7 such as a bolt from above in the following order: drilling hole 4d, elongated hole 6f, and nut hole 20d.

[0048] 14 is a schematic side view showing an enlarged view of the first crosspiece member and its vicinity in FIG. 2, and FIG. 15 is a schematic side view showing an enlarged view of the second crosspiece member and its vicinity in FIG. 2. As shown in FIG.

[0049] The solar cell module 2 has protrusions on its side that are engaged with the fixing bracket 4, with a first protrusion 2a provided at the front end and a second protrusion 2b provided at the rear end. The protrusions are L-shaped with their tips bent upward, and are hooked onto and engaged with the first engagement portion 4f and second engagement portion 4g of the fixing bracket 4.

[0050] 14, the underside of the solar cell module 2 is placed on the receiving portion 4e and the first pedestal portion 6e at the front end, and the first protrusion 2a is locked to the first engagement portion 4f. Also, as shown in Fig. 15, the underside of the solar cell module 2 is placed on the second pedestal portion 6g at the rear end, and the second protrusion 2b is locked to the second engagement portion 4g.

[0051] Next, the installation procedure for the solar power generation system will be described.

[0052] First, the bases 3 are installed at various locations on the installation surface 100. At this time, various components are attached and adjusted appropriately so that the heights at which the support members 5 are supported by each base 3 are uniform. Specifically, in the case of the beam-support system, the bases 3 are posts equipped with bolts (fixing portions), and adjustment is performed by attaching components such as nuts and washers to the bolts. In the case of the anchor disk system, adjustment is performed by attaching components such as nuts and washers to the anchor bolts (fixing portions 3a). Next, the fixing portions 3a are inserted into the holes on the undersides of the support members 5, and the support members 5 are placed on the bases 3. Here, the support members 5 are temporarily fixed to the bases 3 so that the positions of the support members 5 can be adjusted later. Next, the first crosspieces 61 are placed on the support members 5, and adjustments are made again with nuts or the like so that the heights of the first crosspieces 61 from the installation surface 100 are approximately uniform and the first crosspieces 61 are approximately parallel to the horizontal direction X. Then, the support members 5 are fixed to the bases 3. Thereafter, a support backing plate 8 is placed at the intersection of the support member 5 and the first crosspiece 61, and the first crosspiece 61 is then fixed to the support member 5. Similarly, the second crosspiece 62 is temporarily fixed to the support member 5. Furthermore, the fixing bracket 4 is attached to the first crosspiece 61 in preparation for attaching the solar cell module 2.

[0053] When attaching the solar cell module 2, while lifting the rear end, insert the front end toward the fixing bracket 4, and slide the first protrusion 2a below the first engagement portion 4f. Then, while lowering the rear end of the solar cell module 2 onto the second cross member 62, the position of the second cross member 62 is adjusted. While pressing the second cross member 62 against the solar cell module 2, it is fixed to the support member 5 via the support backing plate 8 arranged at the intersection with the support member 5. Finally, the fixing bracket 4 is attached to the second cross member 62 to support and fix the solar cell module 2. At this time, the second protrusion 2b can be locked by the second engagement portion 4g of the fixing bracket 4 attached to the second cross member 62.

[0054] As described above, the support member 5 is attached across multiple bases 3, and the crosspiece member 6 is bridged across the multiple support members 5. Two crosspiece members 6 arranged in parallel each hold opposite side edges of the solar cell module 2. By attaching one support member 5 across multiple bases 3 in this way, the position and orientation of the support member 5 can be easily determined, improving workability during installation.

[0055] Next, a first and a second modified example in which the number of solar cell modules 2 supported and fixed by the mount 1 is changed will be described with reference to FIGS.

[0056] FIG. 16 is a schematic top view of the solar power generation system in the first modified example, and FIG. 17 is a schematic explanatory view showing the positional relationship between the support member and the base.

[0057] In the first modified example, two solar cell modules 2 are aligned in the horizontal direction X and supported and fixed by the mounting base 1. The first support member 51 is disposed near the left end of the solar cell module 2 disposed on the left side, and the second support member 52 is disposed near the right end of the solar cell module 2 disposed on the right side. The first crosspiece member 61 and the second crosspiece member 62 are longer than the configuration shown in FIG. 1 so that they each span across the first support member 51 and the second support member 52.

[0058] Next, the position adjustment of the support member 5 when the position of the base 3 is shifted will be described based on the virtual support member 52k. The virtual support member 52k shown in Fig. 16 corresponds to the second support member 52 when the position of the base 3 corresponding to the second lower surface hole 5e is shifted in the horizontal direction X. Compared to when it is positioned as designed (the second support member 52 shown by the solid line), the virtual support member 52k is positioned diagonally (intersecting) with respect to the vertical direction Y to match the shifted base 3.

[0059] FIG. 17 schematically illustrates the positional relationship of the support member 5 when the position of the base 3 is misaligned, and specifically illustrates the lower plate 5b fixed to the base 3 of the support member 5. For example, if the position of the base 3 corresponding to the second lower hole 5e is misaligned in the horizontal direction X with respect to the position of the base 3 corresponding to the first lower hole 5d, the distance between the two bases 3 (fixing portions 3a) (base-to-base distance KL) becomes greater than the design value. Furthermore, if the position is misaligned in the vertical direction Y, the base-to-base distance KL becomes greater or smaller than the design value. Thus, even if the position of the base 3 (fixing portion 3a) is misaligned by approximately 5 to 10 mm in the horizontal direction X or the vertical direction Y, the support member 5 can be fixed to the base 3 (fixing portion 3a) because the lower hole is an elongated hole. Here, when the support member 5 is fixed according to the position of the base 3 (fixing portion 3a), the first support member 51 and the second support member 52 may not be installed parallel to each other. However, since the upper surface holes are elongated, the connecting positions of the support member 5 and the crosspiece members 6 can be adjusted to arrange the crosspiece members 6 parallel to the horizontal direction X. Therefore, even if the first support member 51 and the second support member 52 are not installed parallel to each other, the crosspiece members 6 can be arranged parallel to the horizontal direction X, preventing distortion of the mount 1. Furthermore, even if the first support member 51 and the second support member 52 are not installed parallel to each other, the first crosspiece members 61 and the second crosspiece members 62 spanning the first support member 51 and the second support member 52 can be arranged parallel to each other, preventing distortion of the mount 1. In this way, even if there is an error in the installation position of the support pole, twisting of the mount 1 and the solar panel does not occur, the fixing strength of the solar panel can be maintained for a long period of time, and safety can be improved.

[0060] FIG. 18 is a schematic top view of a solar power generation system according to the second modified example.

[0061] In the second modified example, three solar cell modules 2 are aligned in the horizontal direction X and supported and fixed by the mounting frame 1. In the second modified example, the number of support members 5 is three, including a first support member 51, a second support member 52, and a third support member 53. The first support member 51 is positioned near the left end of the solar cell module 2 positioned on the left side, the second support member 52 is positioned below the solar cell module 2 positioned in the center, and the third support member 53 is positioned near the right end of the solar cell module 2 positioned on the right side. The first and second crosspiece members 61 and 62 are longer than those shown in FIG. 16 so that they can be straddled across the first, second, and third support members 51, 52, and 53, respectively. If there is a difference in the height of each top plate 5c when the crosspiece members 6 are straddled across the three support members 5, appropriate leveling adjustments are performed. For example, washers or the like are placed below the crosspiece members 6 (between them and the support members 5). The unevenness adjustment may be carried out as necessary even in the first modified example or the component arrangement shown in FIG.

[0062] (Second embodiment) Next, a solar power generation system using a mounting frame according to a second embodiment of the present disclosure will be described with reference to the drawings. Note that the second embodiment has substantially the same configuration as the first embodiment shown in Figures 1 to 18, so the description will be omitted and only the differences will be described.

[0063] FIG. 19 is a side view of a solar power generation system using the mounting base according to the second embodiment of the present disclosure.

[0064] The second embodiment differs from the first embodiment in that a hooked bar member 9 is used instead of the bar member 6, and the solar cell module 2 is attached to the hooked bar member 9 without using the fixing bracket 4. Like the bar member 6, the hooked bar member 9 has a length in the horizontal direction X and is supported by multiple support members 5. FIG. 19 shows a configuration having two hooked bar members 9, and to distinguish between them, one (the lower one in FIG. 19 ) may be referred to as a first hooked bar member 91 and the other (the upper one in FIG. 19 ) as a second hooked bar member 92. The two hooked bar members 9 are spaced apart in the vertical direction Y, with the first hooked bar member 91 arranged along the front end of the solar cell module 2 and the second hooked bar member 92 arranged along the rear end of the solar cell module 2.

[0065] FIG. 20 is a perspective view of the hooked bar member.

[0066] The hooked bar member 9 has a boundary wall 9a in the center in the width direction. At the upper end of the boundary wall 9a, a first hook portion 9b extending diagonally downward on one side (the first base portion 9d side) and a second hook portion 9c extending diagonally downward on the other side (the second base portion 9e side) are provided.

[0067] On one side of the boundary wall 9a, a first base portion 9d, a rail portion 9f, and an upper plate portion 9h are formed in this order from the boundary wall 9a side. The first base portion 9d is a flat surface extending laterally from the boundary wall 9a, and the underside of the front end of the solar cell module 2 is placed on it, as shown in FIG. 21 described later. The rail portion 9f has a U-shaped cross section, and an elongated hole 9g is formed in the bottom of the rail portion 9f. A plurality of elongated holes 9g are provided along the direction in which the rail portion 9f extends. The upper plate portion 9h is a flat surface extending laterally from the side wall of the rail portion 9f, and the underside of the front end of the solar cell module 2 is placed on it.

[0068] On the other side of the boundary wall 9a, as shown in Fig. 22 described later, a second pedestal portion 9e is formed on which the lower surface of the rear end side of the solar cell module 2 is placed. The second pedestal portion 9e is set at the same height as the first pedestal portion 9d. A recess 9j that is recessed more than the surrounding area is formed in the second pedestal portion 9e. A side wall portion 9k is provided extending downward from the end of the second pedestal portion 9e, and the lower end of the side wall portion 9k abuts against the upper plate 5c of the support member 5.

[0069] In this embodiment, as in the first embodiment, when assembling the gantry 1, the hooked bar member 9 is placed on the support member 5 so that the elongated hole 9g overlaps the top hole. The bottom plate of the support backing plate 8 is inserted inside the rail portion 9f. With the bottom plate, rail portion 9f, and top plate 5c overlapping, connecting members 7 such as bolts are inserted into the drilled holes, elongated holes 6f, and top hole of the support backing plate, and then fastened with nuts or the like from the opposite side to secure them in place. Note that the shape of the support backing plate 8 in this embodiment, such as its depth and height, may be modified to match the rail portion 9f of the hooked bar member 9.

[0070] 21 is a schematic side view showing an enlarged view of the vicinity of the first hooked bar member in FIG. 19, and FIG. 22 is a schematic side view showing an enlarged view of the vicinity of the second hooked bar member in FIG.

[0071] 21, the underside of the solar cell module 2 is placed on the first base 9d and the upper plate 9h at the front end, and the first protrusion 2a is locked to the first hook 9b. Also, as shown in Fig. 22, the underside of the solar cell module 2 is placed on the second base 9e at the rear end, and the second protrusion 2b is locked to the second hook 9c.

[0072] 19 shows a configuration in which both the front end side and the rear end side of the solar cell module 2 are locked by the hooked bar member 9, but the present invention is not limited to this, and a configuration in which either the front end side or the rear end side is locked by the bar member 6 and the other is locked by the hooked bar member 9 may also be used. In other words, a configuration in which the bar member 6 and the hooked bar member 9 are mixed may also be used.

[0073] (Third embodiment) Next, a solar power generation system using a mounting frame according to a third embodiment of the present disclosure will be described with reference to the drawings. Note that the third embodiment has substantially the same configuration as the first and second embodiments shown in Figures 1 to 22, so the description will be omitted and only the differences will be described.

[0074] Figure 23 is a schematic top view showing an enlarged view of one end side of a support member in the third embodiment of the present disclosure, and Figure 24 is a schematic top view showing an enlarged view of the other end side of the support member in the third embodiment of the present disclosure.

[0075] The third embodiment differs from the first embodiment in that a notch is provided in the upper plate 5c of the support member 5. Specifically, the upper plate 5c has a notch at a position that overlaps with the lower hole when viewed from above. In this embodiment, the support member 5 has a shape (C-shape) in which the upper plate 5c and the lower plate 5b extend in the same direction from the side plate 5a.

[0076] The top plate 5c has a first notch 5j at a position overlapping the first lower surface hole 5d, and a second notch 5k at a position overlapping the second lower surface hole 5e. The first notch 5j and the second notch 5k are designed to be significantly larger than the first lower surface hole 5d and the second lower surface hole 5e. Specifically, the widths of the first notch 5j and the second notch 5k in the vertical direction Y are approximately twice that of the second lower surface hole 5e. For example, if the width of the second lower surface hole 5e in the vertical direction Y is 30 mm, the widths of the first notch 5j and the second notch 5k in the vertical direction Y are 43 to 60 mm.

[0077] Fig. 25 is a schematic cross-sectional view showing the vicinity of the first notch of the support member, and Fig. 26 is a schematic cross-sectional view showing the vicinity of the second notch of the support member. Note that Fig. 25 and Fig. 26 show a schematic view of the tip of an electric screwdriver DR used in construction work.

[0078] 25 and 26 show the state during construction work in which the support member 5 is attached to the base 3. When fixing the support member 5, it is preferable to use a tool such as an electric screwdriver DR when attaching the nuts that serve as the fixing portions 3a. However, as shown in FIG. 25, in areas where the gap between the lower plate 5b and the upper plate 5c is narrow, the upper plate 5c interferes, making it difficult to insert the electric screwdriver DR. In this case, if a notch is provided in the upper plate 5c, the electric screwdriver DR or other tool can be inserted through the notch, allowing work to be carried out without the upper plate 5c interfering.

[0079] As shown in FIGS. 23 and 24, the first notch 5j and the second notch 5k have a substantially rectangular shape when viewed from above, but are not limited to this and may have, for example, a trapezoidal shape.

[0080] Alternatively, only one of the first notch 5j and the second notch 5k may be provided, rather than both. For example, the first notch 5j may be provided without the second notch 5k. In this configuration, it is preferable to use an electric screwdriver DR with a movable tip. When an electric screwdriver DR with a movable tip is used, as shown in FIG. 26, in a region where the gap between the lower plate 5b and the upper plate 5c is wide, the electric screwdriver DR can be inserted at an angle to avoid the upper plate 5c.

[0081] It should be noted that the embodiments disclosed herein are illustrative in all respects and are not intended to be limiting. Therefore, the technical scope of the present disclosure should not be interpreted solely by the above-described embodiments, but should be defined based on the claims. Furthermore, all modifications within the scope and meaning equivalent to the claims are included. [Explanation of symbols]

[0082] 1 Mounting stand 2. Solar cell modules 3. Foundation 4 Fixing bracket 5 Support member 5a Side plate 5b Bottom plate 5c Top plate 5d 1st bottom hole 5e 2nd bottom hole 5f 1st top hole 5g 2nd top hole 51 first support member 52 second support member 53 Third support member 6 Crosspieces 61 First crosspiece 62 Second crosspiece 7 Connecting members 8 Supporting plate 9 Hooked crosspiece 91 First hooked crosspiece 92 Second hooked crosspiece 20 Plate nuts 100 Installation surface

Claims

1. A mount for supporting and fixing a solar cell module, a support member attached across a plurality of bases fixed to an installation surface; a plurality of crosspiece members that are parallel to one another and span the plurality of support members, and to which the solar cell modules are attached; each of the plurality of support members has a lower surface portion fixed to the plurality of bases, an upper surface portion to which the plurality of crosspiece members are attached, and a side surface portion connecting the lower surface portion and the upper surface portion; The side surface portion has an end portion on the upper surface side that is inclined relative to an end portion on the lower surface side. A stand characterized by:

2. 2. The cradle according to claim 1, The lower surface portion is provided with a lower surface hole into which a fixing portion of the base is inserted, The bottom hole is an elongated hole. A stand characterized by:

3. 2. The cradle according to claim 1, The upper surface portion is provided with an upper surface hole into which a connecting member is inserted, The upper surface hole is an elongated hole, The support member and the crosspiece member are connected via the connecting member. A stand characterized by:

4. 2. The cradle according to claim 1, The support member has a Z-shaped cross section. A stand characterized by:

5. 2. The cradle according to claim 1, The support member has a C-shaped cross section. A stand characterized by:

6. 2. The cradle according to claim 1, The lower surface portion is provided with a lower surface hole into which a fixing portion of the base is inserted, The upper surface portion is provided with a notch at a position that overlaps with the lower surface hole when viewed from above. A stand characterized by:

Images