JP6558632B2 - Solar power plant - Google Patents

Description

  The present disclosure relates to a photovoltaic power generation apparatus.

  2. Description of the Related Art Conventionally, various fixing structures used when a solar power generation device is constructed by fixing a solar cell module to a roof are known. For example, in Patent Document 1, a collar portion protruding outside the module frame is pressed with a presser fitting having a substantially U-shaped cross section, and the bracket is bolted onto a pedestal frame installed on a roof to install a solar cell module. A fixing structure is disclosed.

JP 2014-194133 A

  In the solar power generation device, not only the solar cell module can be firmly fixed to the roof, but also the fixing work on the roof is required to be simple and excellent in workability. An object of the present disclosure is to improve load resistance and workability of a solar power generation device.

  A solar power generation apparatus according to an aspect of the present disclosure is attached across a solar cell panel and a plurality of solar cell modules having a frame provided at an edge of the panel, and adjacent solar cell modules, A solar power generation apparatus including a fixing bracket for fixing each module to the roof, wherein the fixing bracket is a lower bracket that engages with a frame of at least one solar cell module among adjacent solar cell modules; A roof base plate having an upper bracket that is fixed on the lower bracket and engages with a frame of at least the other solar cell module among adjacent solar cell modules, and a guide rail portion that slidably supports the lower bracket. And a base bracket fixed to the base plate.

  According to one embodiment of the present disclosure, it is possible to provide a solar power generation device that can firmly fix a solar cell module to a roof, can be easily fixed on the roof, and has excellent workability.

It is a top view of the solar power generation device which is a 1st embodiment. It is sectional drawing which shows the solar cell module of the solar power generation device which is 1st Embodiment. It is a figure which shows a part of AA line cross section in FIG. It is a perspective view which shows the base metal fitting of the solar power generation device which is 1st Embodiment. FIG. 5 is a sectional view taken along line BB in FIG. 4. It is a perspective view which shows the lower metal fitting of the solar power generation device which is 1st Embodiment. It is CC sectional view taken on the line in FIG. It is a perspective view which shows the upper metal fitting of the solar power generation device which is 1st Embodiment. It is DD sectional view taken on the line in FIG. It is sectional drawing which shows the eaves side edge part of the solar power generation device which is 1st Embodiment, and its vicinity. It is a figure for demonstrating the construction method of the solar power generation device which is 1st Embodiment. It is a figure for demonstrating the construction method of the solar power generation device which is 1st Embodiment. It is sectional drawing of the solar power generation device which is 2nd Embodiment. It is a perspective view which shows the 4th metal fitting of the solar power generation device which is 2nd Embodiment. It is sectional drawing of the solar power generation device which is 3rd Embodiment. It is a figure which shows the state which installed the baseplate of the solar power generation device which is 3rd Embodiment on a field plate. It is a perspective view which shows the base metal fitting of the solar power generation device which is 3rd Embodiment. It is sectional drawing of the solar power generation device which is 4th Embodiment.

Hereinafter, an example of an embodiment will be described in detail with reference to the drawings.
The drawings referred to in the embodiments are schematically described, and the dimensional ratios of the components drawn in the drawings may be different from the actual products. Specific dimensional ratios and the like should be determined in consideration of the following description. In the present specification, the description of “substantially **” is intended to include the case where substantially the same is recognized as substantially the same as the case where substantially the same is described as an example.

  In this specification, with the fixing bracket attached to the roof, the direction of the bracket along the roof girder direction (the direction perpendicular to the roof eaves direction) is the “lateral direction”, and the direction perpendicular to the roof base plate The direction of the metal fitting along the line is referred to as “vertical direction”. Moreover, the direction of the metal fitting along the eaves direction of a roof may be called the vertical direction. In the drawings used in the description of the embodiment, the roof eaves direction / vertical direction is indicated by an arrow α, the girder / lateral direction is indicated by an arrow β, and the vertical direction is indicated by an arrow γ.

  The photovoltaic power generation apparatus 10 according to the first embodiment will be described in detail below with reference to FIGS.

FIG. 1 is a diagram illustrating a solar power generation device 10 installed on a roof.
As illustrated in FIG. 1, the solar power generation device 10 includes a plurality of solar cell modules 11 and a fixing bracket 14 that is attached across the adjacent solar cell modules 11 and fixes the modules to the roof. As will be described in detail later, the solar power generation device 10 is provided on the base metal 30 having the guide rail part 34 as the fixing metal 14, the lower metal part 40 slidably supported by the guide rail part 34, and the lower metal part 40. And an upper metal fitting 50 to be fixed (see FIG. 3 described later).

  In the present embodiment, the solar cell module 11a (first solar cell module) in which the fixing bracket 14 is disposed on the eave side of the roof, and the solar cell module 11b (second solar cell module 11b) that is disposed adjacent to the ridge side of the solar cell module 11a. Of the solar cell module). In this case, it is preferable that the base metal fitting 30 is fixed to the field board 90 so that the guide rail part 34 extends along the eaves-ridge direction (see FIG. 3 described later). A base metal fitting 30x, an eaves side end lower metal fitting 60, and an eaves side edge upper metal fitting 70 (see FIG. 10 described later) are attached to the eaves side edge of the solar power generation device 10. Hereinafter, these may be collectively referred to as an eave side end fixing bracket. For example, a ridge-side end fixing bracket (not shown) is attached to the ridge-side end of the solar power generation device 10. However, the fixture 14 may be attached to the ridge side end.

  The terms of the solar cell modules 11a and 11b (first and second solar cell modules) indicate the relative positional relationship between the two solar cell modules. In other words, among the plurality of solar cell modules 11 constituting the solar power generation device 10, the solar cell module 11 a is arranged on the eaves side of any two solar cell modules 11 adjacent in the eave building direction. The solar cell module 11b is disposed on the ridge side. The fixing bracket 14 can also be attached across two solar cell modules 11 adjacent to each other in the roof girder direction. In this case, it is preferable that the base metal fitting 30 is fixed to the base plate 90 so that the guide rail portion 34 extends along the girder direction.

  One solar cell module 11 is fixed to the roof using, for example, a plurality of fixing fittings 14 arranged at appropriate intervals in the roof girder direction. In the example shown in FIG. 1, a total of four fixing brackets 14 are attached to one solar cell module 11, two at each end of the eaves-ridge direction. The fixing brackets 14 may not be arranged in the eaves-ridge direction, for example, but are preferably arranged in both the eaves-ridge direction and the girder direction.

  The solar cell module 11 includes a solar cell panel 12 and a frame 13 provided at an edge portion of the panel. The solar cell panel 12 is a substantially flat panel in which, for example, a plurality of solar cells are sandwiched between protective members such as glass plates. The solar cell module 11 and the solar cell panel 12 illustrated in FIG. 1 are substantially rectangular in plan view. Each solar cell module 11 has a short side substantially parallel to the eaves-ridge direction, and is arranged on the roof in a state where the short sides of adjacent solar cell modules 11 are in contact with each other. The solar cell module 11 may have a plan view shape other than a rectangle, or may have another shape such as a square.

  The frame 13 protects the edge portion of the solar cell panel 12. The frame 13 is preferably used for fixing the solar cell module 11 to the roof. The structure of the frame 13 is not limited to a specific structure, but preferably has an outer groove 24 and an inner flange 26 described later. The frame 13 is a long member formed by extruding a metal material such as aluminum. The frame 13 is preferably composed of a plurality of members attached along the long sides and the short sides of the solar cell panel 12, and is preferably connected to each other using corner pieces or the like to surround the four sides of the solar cell panel 12. In the present embodiment, the outer groove 24 and the inner collar 26 are provided only on the frame 13 attached along the long side of the solar cell panel 12.

FIG. 2 is a cross-sectional view of the solar cell module 11 (a cross-sectional view in the width direction of the frame 13).
As illustrated in FIG. 2, the frame 13 includes a main body 20, an inner groove 22 that houses an edge of the solar cell panel 12, an outer groove 24 that is provided on the opposite side of the solar cell panel 12, and a solar cell. It has an inner flange 26 projecting inside the module 11. The inner groove 22 is a groove opened on one side (inner side) in the width direction of the frame 13, and the outer groove 24 is a groove opened on the other side (outer side) in the width direction opposite to the inner groove 22. In the present embodiment, the depth direction of the inner groove 22 and the outer groove 24 and the extending direction of the inner flange 26 are along the eaves direction of the roof. The inner groove 22 is formed in the upper part of the frame 13, and the outer groove 24 and the inner flange 26 are formed in the lower part of the frame 13. The shape of the main body 20 is not particularly limited, but preferably has a hollow prismatic shape from the viewpoint of improving rigidity, reducing weight, reducing material costs, and the like.

  The frame 13 has a flange portion 21 that stands on the upper surface of the main body portion 20. The flange portion 21 extends straight upward from the outside of the main body portion 20 and is bent inward in the middle to have a substantially L-shaped cross section. An inner groove 22 that is a gap into which the solar cell panel 12 can be inserted is formed between the upper surface of the main body portion 20 and the flange portion 21. The inner groove 22 is formed along the longitudinal direction of the frame 13. An edge of the solar cell panel 12 is inserted into the inner groove 22, and a gap between the solar cell panel 12 and the inner groove 22 is filled with, for example, an adhesive.

  The frame 13 has a flange portion 23 erected on the lower surface of the main body portion 20. The flange portion 23 extends straight downward from the inside of the main body portion 20, and is bent outward in the middle to have a substantially L-shaped cross section. An outer groove 24 is formed between the lower surface of the main body portion 20 and the flange portion 23, which is a gap into which the insertion portion of the fixing bracket 14 can be inserted. The outer groove 24 may be formed only in a portion to which the fixing metal fitting 14 is attached, but is preferably formed continuously along the longitudinal direction of the frame 13. The bottom plate 25 is a part of the flange portion 23 and constitutes the bottom portion of the frame 13.

  The inner flange 26 extends from the lower part of the frame 13 toward the inner side of the solar cell module 11 (the other side in the width direction of the frame 13), and is substantially perpendicular to the inner wall of the frame 13 facing the inner side of the solar cell module 11. It is preferable to be provided. In the present embodiment, the inner collar 26 extends from a portion (a portion along the vertical direction) constituting the inner wall of the frame 13 in the collar 23, and the inner collar 26 constitutes the bottom of the frame 13 together with the bottom plate 25. The lower surface of the bottom plate 25 and the lower surface of the inner flange 26 form a substantially flat surface (the lower surface of the frame 13) without a continuous step. The inner collar 26 may be formed only in a portion to which the fixing metal fitting 14 is attached, but is preferably formed continuously along the longitudinal direction of the frame 13.

FIG. 3 is a diagram showing a part of a cross section taken along line AA in FIG.
In FIG. 3, “a” and “b” are respectively attached to the constituent elements of the solar cell modules 11 a and 11 b that are adjacently arranged in the eaves-ridge direction.

  As illustrated in FIG. 3, the solar power generation device 10 is attached over the solar cell modules 11 a and 11 b adjacently arranged in the eaves-ridge direction, and the base metal fitting is used as a fixing metal 14 that fixes the modules to the roof. 30, a lower metal fitting 40, and an upper metal fitting 50. The base metal fitting 30 is a metal fitting that has a guide rail portion 34 that slidably supports the lower metal fitting 40 and is fixed to the base plate 90. The base metal fitting 30 has, for example, a pair of flange portions 36 that constitute a guide rail portion 34. The lower metal fitting 40 is a metal fitting engaged with at least one of the frames 13a and 13b of the solar cell modules 11a and 11b. The upper metal fitting 50 is a metal fitting fixed on the lower metal fitting 40 and engaged with at least the other frame 13a, 13b of the solar cell modules 11a, 11b. That is, when the lower metal fitting 40 is engaged with one of the frames 13a and 13b, the upper metal fitting 50 is engaged with a frame where the lower metal fitting 40 is not engaged. The lower metal fitting 40 may be configured to engage both the frames 13a and 13b. In this case, the upper metal fitting 50 may be configured to engage either or both of the frames 13a and 13b.

  In the example shown in FIG. 3, a spacer 92 is provided between the base metal fitting 30 and the roof material 91. The spacer 92 gradually increases in thickness from the eaves side toward the ridge side. The spacer 92 fills a step formed between the base metal member 30 and the roof material 91, and enables stable attachment of the base metal member 30 on the roof material 91. In other words, by using the spacer 92, for example, the base metal fitting 30 can be stably attached to a portion where a step is formed by the overlapping of the roof materials 91. The base metal fitting 30 is fixed to the field board 90 through the roof material 91 and the spacer 92 so that the guide rail portion 34 extends along the eaves-ridge direction.

  The base metal fitting 30 has a fixing portion 31 that is fixed to the base plate 90. It is preferable that two fixing portions 31 are provided on both lateral sides of the base metal fitting 30. The guide rail portion 34 is provided between the two fixed portions 31. Each fixing portion 31 preferably has a plurality of screw holes 32. In the present embodiment, four screw holes 32 are formed side by side in the eaves-ridge direction of each fixing portion 31. The base metal fitting 30 is fixed to the base plate 90 using wood screws 15 inserted into the three screw holes 32 excluding the second screw hole 32 counted from the ridge side. If the second screw hole 32 counted from the ridge side is used, the wood screw 15 penetrates through the vicinity of the end of the roof material 91 and the roof material 91 is easily damaged, which is not preferable. By providing the plurality of screw holes 32 arranged in the eaves ridge direction, it is possible to increase the degree of freedom of installation while ensuring good fixability of the base metal fitting 30 to the base plate 90.

  The lower metal fitting 40 supported by the guide rail portion 34 of the base metal fitting 30 can be disposed at an arbitrary position within the range of the guide rail portion 34, for example. The guide rail portion 34 extending in the eaves ridge direction increases the degree of freedom of installation in the eaves ridge direction of the lower metal fitting 40 and the upper metal fitting 50 fixed on the lower metal fitting 40, and improves the workability of the photovoltaic power generation apparatus 10. Furthermore, it is preferable that the base metal fitting 30 includes a bolt guide rail portion 35 that slidably supports the head of the bolt 16 for fixing the lower metal fitting 40 and the upper metal fitting 50 to the base metal fitting 30. The bolt guide rail portion 35 further improves the workability of the solar power generation device 10.

  The lower metal fitting 40 and the upper metal fitting 50 are attached to the frame 13 of the solar cell module 11. In this embodiment, the lower metal fitting 40 is engaged with the solar cell module 11a, and the upper metal fitting 50 is engaged with both the solar cell modules 11a and 11b. On the lower metal fitting 40, a frame 13a (first frame) provided at an edge of the solar cell panel 12a (first solar cell panel) is placed. The upper metal fitting 50 is disposed on the lower metal fitting 40, and a frame 13b (second frame) provided on the edge of the solar cell panel 12b (second solar cell panel) is placed on the upper metal fitting 50. However, the engagement form of each metal fitting with respect to the solar cell module 11 is not limited to that shown in FIG. 3. For example, the upper metal fitting 50 may be engaged only with the frame 13 b of the solar cell module 11 b.

  The lower metal fitting 40 is a metal fitting that holds the inner flange 26a of the frame 13a, and fixes the ridge side end of the solar cell module 11a to the base metal fitting 30 using the inner flange 26a. The upper metal fitting 50 is attached to both the frames 13a and 13b, and fixes the ridge side end of the solar cell module 11a and the eave side end of the solar cell module 11b to the base metal fitting 30. The upper metal fitting 50 includes an insertion portion 54 (eave side insertion portion) inserted into the outer groove 24a of the frame 13a, and an insertion portion 56 (ridge side insertion portion) inserted into the outer groove 24b of the frame 13b. Have By providing the two insertion portions 54 and 56, the structure for fixing the solar cell modules 11a and 11b to the base metal fitting 30 becomes stronger and the load resistance is improved as compared with the case where there is only one insertion portion. .

  The lower metal fitting 40 and the upper metal fitting 50 are preferably fixed to the base metal fitting 30 using a single bolt 16 from the viewpoint of improving workability and reducing material costs. A nut 17 (a lower metal nut) for fixing the lower metal fitting 40 and a nut 18 (an upper metal nut) for fixing the upper metal fitting 50 are respectively attached to the bolts 16. The lower metal fitting 40 and the upper metal fitting 50 each have bolt holes 42 and 53 through which the bolts 16 are inserted. The bolt holes 42 and 53 are formed at positions where the ridge side portions of the respective metal fittings overlap each other, do not overlap with the inner flange 26b of the frame 13b, and the nuts 17 and 18 do not interfere with the inner flange 26b. The lower metal fitting 40 and the upper metal fitting 50 can be fixed by using a single nut that holds the metal fittings from above the upper metal fitting 50. For example, the use of the nut 17 facilitates the attachment of the lower metal fitting 40 and makes it easy to work. (See procedure (2) described later). Further, by attaching the two nuts 17 and 18, for example, even if the nut 18 is loosened, the nut 17 maintains the fixed state of the lower metal fitting 40 and the upper metal fitting 50 with respect to the base metal fitting 30.

  The lower metal fitting 40 has a pair of leg portions 44 that are hooked on a pair of flange portions 36 constituting the guide rail portion 34. The lower metal fitting 40 preferably includes a base portion 41 disposed on the pair of flange portions 36, and the pair of leg portions 44 extends downward from the base portion 41. The pair of legs 44 prevents the lower metal fitting 40 from being detached from the guide rail portion 34, and enables the lower metal fitting 40 to be stably slid along the rail portion. Further, the pair of leg portions 44 increases the binding force between the base metal fitting 30 and the lower metal fitting 40, and improves durability against negative pressure acting on the solar cell module 11, for example.

  Hereinafter, the configurations of the base metal fitting 30, the lower metal fitting 40, and the upper metal fitting 50 will be described in more detail with reference to FIGS. 4 to 9 in addition to FIG. Here, description will be given assuming that each metal fitting is attached across the solar cell modules 11a and 11b.

4 and 5 are views showing the base metal fitting 30. FIG.
The base metal fitting 30 includes two fixing portions 31 each having a plurality of screw holes 32 and a pedestal portion 33 provided between the fixing portions 31. The base metal fitting 30 has a substantially rectangular shape in a plan view extending longer in the vertical direction (eave building direction) than in the horizontal direction. The two fixing portions 31 are each formed in a substantially flat plate shape that is long in the vertical direction, and have the same shape and the same dimensions. The pedestal portion 33 is formed higher than the fixed portion 31, and a gap for flowing rainwater or the like is formed between the pedestal portion 33 and the roof material 91. The lower metal fitting 40 is disposed on the pedestal portion 33. The spacer 92 (see FIG. 3) is preferably provided between the fixed portion 31 and the roof material 91.

  The pedestal portion 33 is provided with a guide rail portion 34 and a bolt guide rail portion 35. The guide rail portion 34 and the bolt guide rail portion 35 extend in the same direction (vertical direction) and include a pair of flange portions 36. Each collar part 36 has the same shape and the same dimension as each other. The flanges 36 are disposed on the pedestal 33 so as to face each other across the central portion in the horizontal direction of the pedestal 33, and are formed over the entire vertical length of the pedestal 33. That is, each guide rail portion is formed over the entire length of the pedestal portion 33 in the vertical direction. The lower metal fitting 40 and the bolt 16 can be inserted into each guide rail portion from both longitudinal ends of the pedestal portion 33.

  Each brim part 36 has a support part 37 erected on the upper surface 33 a of the pedestal part 33, and a first brim part 38 projecting laterally from the upper end of the support part 37. Each support portion 37 extends straight in the vertical direction, and each first flange portion 38 is provided substantially parallel to the upper surface 33 a of the pedestal portion 33. The space between the upper surface 33a of the pedestal 33 and each first flange 38 is longer than the thickness of the leg 44 of the lower metal fitting 40, and the leg 44 is inserted between the upper surface 33a and each first flange 38. A gap of a size that prevents the leg portion 44 from contacting the upper surface 33a is formed. The gap serves as a guide rail portion 34 that slidably supports the lower metal fitting 40. The first flanges 38 extend in directions opposite to each other, and the respective leading ends are located in the vicinity of both lateral ends of the pedestal 33. For this reason, the guide rail portions 34 are respectively formed on both lateral sides of the pedestal portion 33.

  Each brim part 36 has a second brim part 39 projecting from the upper end of each support part 37 on the opposite side to each first brim part 38, that is, on the laterally central part side of the pedestal part 33. Each second flange 39 is provided substantially parallel to the upper surface 33 a of the pedestal 33 with a gap larger than the diameter of the shaft of the bolt 16 and smaller than the diameter of the head of the bolt 16. The space between the upper surface 33a of the pedestal 33 and each second flange 39 is longer than the thickness of the head of the bolt 16, and the head of the bolt 16 is inserted between the upper surface 33a and each second flange 39. Can be formed. The gap serves as a bolt guide rail portion 35 that slidably supports the bolt 16. The bolt 16 inserted into the bolt guide rail portion 35 has a shaft portion protruding from between each second flange portion 39 and standing on the pedestal portion 33, and the head portion is hooked on each second flange portion 39 and the rail. Held in the department. In order to improve the durability of the fastening portion of the bolt 16, the second flange 39 is formed thicker than the first flange 38.

  The base metal fitting 30 has a structure in which a bolt guide rail portion 35 is formed between the pair of guide rail portions 34 as described above. The bolt guide rail portion 35 is provided between the support portions 37, that is, in the lateral center portion of the pedestal portion 33, and a pair of flange portions 36 constituting each guide rail portion are formed in a substantially T shape. . Each guide rail portion slidably supports the lower metal fitting 40 along the eaves-ridge direction with the bolt 16 inserted through the bolt hole 42 of the lower metal fitting 40. For example, the length of the base metal fitting 30 along the eaves-ridge direction is approximately the same as the length of the single roof material 91 or shorter than the length of the roof material 91. For this reason, by using the base metal fitting 30, for example, weight reduction of an apparatus, reduction of material cost, etc. can be aimed at. Moreover, since the base metal fitting 30 is low in height, the solar cell module 11 can be attached without significantly rising from the roof.

  Note that the shape of the base metal fitting 30 is not limited to the shape illustrated in FIGS. 4 and 5. For example, the pair of flange portions 36 constituting the guide rail portion 34 may have different shapes. In the form illustrated in FIG. 5, the guide rail portion 34 and the bolt guide rail portion 35 are formed by the pair of flange portions 36, but each guide rail portion may be formed separately. For example, the guide rail part 35 for bolts may be formed under the base part, and the guide rail part 34 may be formed on the base part.

6 and 7 are diagrams showing the lower metal fitting 40. FIG.
The lower metal fitting 40 includes a base portion 41 formed in a substantially flat plate shape and a pedestal portion 43 on which the frame 13a is placed. The lower surface of the base portion 41 is in contact with the flange portion 36 of the base metal fitting 30, and the upper metal fitting 50 is placed on the upper surface of the base portion 41 (see FIG. 3). The pedestal portion 43 is formed higher than the base portion 41 and does not contact the base metal fitting 30. The pedestal portion 43 is preferably formed such that the height of the frame 13a and the frame 13b placed on the upper metal fitting 50 are substantially the same. For example, the pedestal portion 43 is formed such that the height of the upper surface of the pedestal portion 43 is substantially the same as the height of the upper surface of the first base portion 51 of the upper metal fitting 50 disposed on the base portion 41. The pedestal portion 43 is formed on the eave side of the lower metal fitting 40 over the entire lateral length of the metal fitting.

  The lower metal fitting 40 extends longer in the vertical direction than in the horizontal direction, and extends toward the ridge beyond the inner flange 26b of the frame 13b (see FIG. 3). A bolt hole 42 is formed in the base portion 41 at the center in the horizontal direction. The bolt hole 42 is a long hole formed long in the eaves ridge direction, and is formed at a position where the eave side end of the long hole does not overlap the inner flange 26b. By making the bolt hole 42 a long hole, the attachment of the lower metal fitting 40 is facilitated and the workability is improved (refer to the procedure (3) described later).

  The lower metal fitting 40 has a pair of leg portions 44 extending downward from the base portion 41 and hooked on a pair of flange portions 36 constituting the guide rail portion 34. The base portion 41 is disposed on the first flange portion 38 of each flange portion 36, the leg portion 44 wraps around the lower surface side of the first flange portion 38, and each leg portion 44 together with the base portion 41 has a first flange of the flange portion 36. The part 38 is clamped. Each leg portion 44 is provided on the lower surface of the base portion 41 with a gap in which each first flange 38 can be inserted between the lower surface of the base portion 41. Each leg portion 44 extends downward from both lateral ends of the base portion 41, and both lateral portions of the lower metal fitting 40 are folded back to the lower surface side so that the gap is formed between the lower surface of the base portion 41. It is formed. A portion of each leg portion 44 that faces the base portion 41 is formed substantially parallel to the base portion 41.

  Each leg portion 44 is formed with a convex portion 45 that comes into contact with the lower surface of each first flange portion 38. That is, each convex portion 45 is a protrusion formed on the upper surface of each leg portion 44. Each convex portion 45 may be formed at the central portion in the horizontal direction of each leg portion 44 or the like, but is preferably formed at both ends in the horizontal direction of each leg portion 44. The convex portion 45 can be formed by pressing the leg portion 44 from the lower surface side. An example of a suitable distance between the base portion 41 and the tip of the convex portion 45 is 1.00 to 1.10 times the thickness of the first flange portion 38.

  The lower metal fitting 40 has a holding part 46 that holds the inner collar 26a of the frame 13a from above. The presser part 46 is provided on the pedestal part 43 with a gap in which the inner collar 26 a can be inserted between the presser part 46 and the pedestal part 43. Specifically, the eaves side portion of the lower metal fitting 40 is folded back toward the ridge so that the gap is formed between the pedestal portion 43 and the holding portion 46 extending substantially parallel to the pedestal portion 43 is formed. The pressing portion 46 is formed over the entire length in the horizontal direction of the lower metal fitting 40. As shown in FIG. 3, the inner collar 26 a of the frame 13 a is inserted between the pedestal portion 43 and the presser portion 46. That is, it can be said that the lower metal fitting 40 has a holding portion that holds the inner flange 26a.

  The presser portion 46 is formed with a convex portion 47 that contacts the upper surface of the inner collar 26a. That is, the convex portion 47 is a protrusion formed on the lower surface of the presser portion 46. The convex portions 47 may be formed at the central portion in the horizontal direction of the presser portion 46, but are preferably formed at both ends in the horizontal direction of the presser portion 46. The convex portion 47 can be formed by pressing the pressing portion 46 from the upper surface side. It is preferable to set the interval between the pedestal portion 43 and the pressing portion 46 so that the interval between the pedestal portion 43 and the tip of the convex portion 47 is approximately the same as the thickness of the inner collar 26a. An example of a suitable interval is 0.95 to 1.05 times the thickness of the inner collar 26a. It is particularly preferable that the distance between the base portion 43 and the tip of the convex portion 47 is slightly narrower than the thickness of the inner collar 26a. An example of a particularly suitable distance is 0.95 to 1.00 of the thickness of the inner collar 26a. Is less than twice. As a result, the convex portion 47 comes into strong contact with the inner collar 26 a, and the inner collar 26 a is pressed against the pedestal portion 43 by the pressing portion 46.

  The lower metal fitting 40 has a standing wall portion 48 formed by bending the ridge side end portion upward. At the time of construction of the solar power generation device 10, when the inner collar 26a of the frame 13a is inserted between the pedestal portion 43 and the presser portion 46, the lower bracket 40 is moved to the ridge side. At this time, the standing wall portion 48 is used as a handle. it can. Since the lower metal fitting 40 can be pulled strongly by using the standing wall portion 48, it is easy to insert the inner collar 26a, and the workability is improved. The upright wall portion 48 may be formed over the entire length in the lateral direction of the base portion 41, but is preferably formed separately on both lateral sides of the base portion 41 from the viewpoint of attachment of the nut 17 and the like.

  Note that the shape of the lower metal fitting 40 is not limited to the shape illustrated in FIGS. 6 and 7. For example, the shape of the leg portion 44 can be changed according to the shape of the guide rail portion 34 and the like. As an example, when the guide rail portion 34 is formed by a substantially L-shaped flange extending from the both lateral ends of the base metal fitting 30 to the lateral central portion, the lateral both ends of the base portion are used as the leg portions. A working form is mentioned. Further, the pair of leg portions 44 may have different shapes. In the form illustrated in FIG. 6, two leg portions 44 and two standing wall portions 48 are provided, but these may be one.

8 and 9 are views showing the upper metal fitting 50. FIG.
The upper metal fitting 50 has the 1st base part 51 formed in the substantially flat plate shape. The first base portion 51 is disposed on the base portion 41 in a state where the first base portion 51 is in contact with the base portion 41 of the lower metal fitting 40. Then, the frame 13b is placed on the first base portion 51 (see FIG. 3). In a state where the upper metal fitting 50 is disposed on the lower metal fitting 40, the height of the upper surface of the first base portion 51 is substantially the same as the height of the upper surface of the pedestal portion 43. The first base portion 51 extends to the ridge side beyond the inner flange 26b of the frame 13b (see FIG. 3).

  The upper metal fitting 50 has a second base portion 52 formed higher than the first base portion 51 on the ridge side with respect to the first base portion 51. Similar to the first base portion 51, the second base portion 52 is formed in a substantially flat plate shape. A bolt hole 53 through which the bolt 16 is inserted is formed in the second base portion 52. The bolt hole 53 has a substantially perfect circle shape and is formed at a position overlapping the bolt hole 42 of the lower metal fitting 40. The second base portion 52 is formed with a space in which the nut 17 can be attached between the base portion 41 of the lower metal fitting 40. A step is formed between the first base portion 51 and the second base portion 52, and the height of the step is equal to or greater than the thickness of the nut 17.

  The upper metal fitting 50 has the two insertion parts 54 and 56 inserted in the outer grooves 24a and 24b of the frames 13a and 13b as described above. At the eaves side end portion of the first base portion 51, the insertion portions 56 are respectively formed on both lateral sides of the first base portion 51, and the insertion portions 54 are formed between the two insertion portions 56. The horizontal length of the insertion portion 54 and the horizontal length of two insertion portions 56 are, for example, substantially the same. The insertion portion 54 extends from the eave side end portion of the first base portion 51 to the eave side. The insertion part 56 extends from the eaves side end of the first base part 51 to the side opposite to the insertion part 54, that is, the ridge side.

  The insertion part 54 extends, for example, straight from the eaves side end of the first base part 51, and is bent in the middle of the eaves side so as to have a substantially L-shaped cross section. For example, the insertion part 56 extends straight from the eaves side end of the first base part 51 and is bent in the middle to form a substantially L-shaped cross section. The distal end portions of the insertion portions 54 and 56 are substantially the same height as each other and are formed substantially parallel to the first base portion 51. Although the base part of the insertion part 56 is arrange | positioned a little on the ridge side rather than the base part of the insertion part 54, each base part may be formed along with the horizontal direction.

  The longitudinal length of the insertion portions 54 and 56 is preferably not more than the depth of the outer groove 24, more preferably not more than the depth of the outer groove 24 and not less than 50% of the depth. In this embodiment, the bottom plate 25a of the frame 13a is inserted between the pedestal portion 43 and the insertion portion 54 of the lower metal fitting 40, and the bottom plate 25b of the frame 13b is between the first base portion 51 and the insertion portion 56. Is inserted. In other words, the insertion portion 54 is bent upward so that a gap is formed between the insertion portion 54 and the base portion 43 of the lower metal fitting 40 so that the bottom plate 25a can be inserted. Further, the insertion portion 56 is formed by folding the eave side portion of the upper metal fitting 50 toward the ridge side with a gap in which the bottom plate 25 b can be inserted between the first base portion 51. It can be said that the upper metal fitting 50 has a holding portion for holding the bottom plate 25b.

  The insertion portions 54 and 56 are respectively formed with convex portions 55 and 57 that are in contact with the inner walls of the outer grooves 24a and 24b. The convex portions 55 and 57 may be formed on the upper surface of each insertion portion, but are preferably formed on the lower surface. The convex portions 55 are respectively formed at both lateral ends of the insertion portion 54. One convex portion 57 is formed on each insertion portion 56. The convex portions 55 and 57 can be formed by pressing the insertion portions 54 and 56 from the upper surface side, respectively. As for the insertion part 54, the convex part 55 contacts the upper surface of the bottom plate 25a, and presses the bottom plate 25a against the base part 43 of the lower metal fitting 40. That is, the bottom plate 25a is sandwiched from above and below by the pedestal portion 43 and the insertion portion 54. As for the insertion part 56, the convex part 57 contacts the upper surface of the bottom plate 25b, and presses the bottom plate 25b against the 1st base part 51. FIG.

  The distance between the pedestal portion 43 of the lower metal fitting 40 and the insertion fitting portion 54 of the upper metal fitting 50 is preferably about the same as the thickness of the bottom plate 25 a between the pedestal portion 43 and the tip of the convex portion 55. An example of a suitable interval is 0.95 to 1.05 times the thickness of the bottom plate 25a, and is particularly preferably slightly smaller than the thickness of the bottom plate 25a, for example, less than 0.95 to 1.00 times. The distance between the first base portion 51 and the insertion portion 56 is preferably approximately the same as the thickness of the bottom plate 25 b between the first base portion 51 and the tip of the convex portion 57. An example of a suitable interval is 0.95 to 1.05 times the thickness of the bottom plate 25b.

  The upper metal fitting 50 has a standing wall portion 58 that extends substantially perpendicular to the first base portion 51. The standing wall portion 58 is provided at a position facing the tip of the inner flange 26b of the frame 13b and at a position where there is no problem when the frame 13b is disposed on the upper metal fitting 50. The standing wall portion 58 prevents the frame 13b from moving toward the ridge when, for example, a negative pressure is applied to the solar cell module 11. The standing wall portions 58 are formed on both lateral sides of the connecting portion between the first base portion 51 and the second base portion 52. In the upper metal fitting 50, since the connection portion and the standing wall portion 58 are formed side by side in the horizontal direction, the movement of the frame 13b to the ridge side is also prevented by the connection portion. Further, the upper metal fitting 50 has a standing wall portion 59 extending substantially perpendicular to the second base portion 52. The standing wall portion 59 is formed at the ridge side end portion of the second base portion 52, and increases the strength of the second base portion 52, for example.

  In addition, the shape of the upper metal fitting 50 is not limited to what is shown in FIG.8 and FIG.9. For example, even if the insertion part 54 (eave side insertion part) is formed in the horizontal direction both sides of the upper metal fitting 50, respectively, the insertion part 56 (ridge side insertion part) is formed between each insertion part 54. Good. Or the insertion part 54 may be formed in the horizontal direction one side of the upper metal fitting 50, and the insertion part 56 may be formed in the horizontal direction other side. The upper metal fitting 50 may have a shape without the standing wall portions 58 and 59.

FIG. 10 is a cross-sectional view showing the eaves side end of the photovoltaic power generation apparatus 10 and the vicinity thereof.
As shown in FIG. 10, the solar power generation device 10 preferably includes a decorative cover 80 attached to the eaves side end of the device. The decorative cover 80 is provided along the long side of the solar cell module 11, for example. The decorative cover 80 is fixed to the base metal fitting 30x using the lower metal fitting 60 for the eave side end portion and the upper metal fitting 70 for the eave side end portion. The base metal fitting 30x has the same form as the base metal fitting 30 except that the length in the eaves ridge direction is shorter than the base metal fitting 30. That is, the base metal fitting 30x includes a fixing portion 31x, a guide rail portion 34x, a bolt guide rail portion 35x, and the like. It is also possible to use the base metal fitting 30 instead of the base metal fitting 30x.

  The decorative cover 80 has, for example, a hollow, substantially triangular prism shape, and is disposed close to the eaves side end of the solar cell module 11 that is disposed closest to the eaves. The decorative cover 80 preferably has a groove 81 into which the lower metal fitting 60 for the eaves side end is inserted. The groove 81 is formed in the lower part of the decorative cover 80. The decorative cover 80 may be connected to another decorative cover 80 disposed adjacent to the roof girder. Each decorative cover 80 has, for example, a connecting portion 82 that can be inserted into another decorative cover 80, and covers that are adjacently arranged in the digit direction are connected to each other by the connecting portions 82.

  Similar to the lower metal fitting 40, the eaves-side end lower metal fitting 60 extends downward from the base portion 61 and has a base portion 61 disposed on the pair of flange portions 36x constituting the guide rail portion 34x. A pair of leg portions 64 hooked on the flange portion 36x. The base portion 61 is formed with a bolt hole 62 that is long in the eaves-ridge direction. On the other hand, the lower metal fitting 60 for the eave side end portion has an insertion portion 66 that extends from the eave side end portion of the base portion 61 and is inserted into the groove portion 81 of the decorative cover 80, instead of the holding portion that holds the inner collar 26. It differs from the lower metal fitting 40 in having it. The insertion portion 66 is preferably formed with a convex portion 67 that contacts the inner wall of the groove portion 81.

  Similar to the upper metal fitting 50, the upper metal fitting 70 for the eaves side edge portion is a first base portion 71 disposed on the base portion 61 of the lower metal fitting 60 for eave side edge portions, and a second base in which a bolt hole 73 is formed. Part 72 and the insertion part 76 (ridge side insertion part) inserted in the outer groove 24 of the frame 13. On the other hand, the upper metal fitting 70 for the eaves side end portion is different from the upper metal fitting 50 in that it has a fixing portion 74 extending upward from the eave side end portion of the first base portion 71 instead of the eave side insertion portion. The fixing portion 74 is fixed to a side surface of the decorative cover 80 facing the ridge side using a screw 83. For example, the fixing portions 74 are respectively formed on both lateral sides of the first base portion 71, and an insertion portion 76 is formed between the two fixing portions 74. The insertion portion 76 is preferably formed with a convex portion 77 that contacts the upper surface of the bottom plate 25.

FIG. 11 and FIG. 12 show an example of the construction procedure of the solar power generation device 10 having the above configuration.
FIG. 11 shows the following procedures (1) to (3), and FIG. 12 shows the following procedures (4) and (5). Here, although the construction procedure in the boundary part of solar cell module 11a, 11b is demonstrated, in construction of the solar power generation device 10, the eaves side edge fixing bracket is first fixed to the field board 90. The fixing metal fitting 14 attached to the boundary portion between the solar cell modules 11a and 11b is aligned based on the position of the bolt 16 of the eave-side end fixing metal fitting, for example.
The construction procedure at the boundary between the solar cell modules 11a and 11b is as follows.
(1) The base metal fitting 30 is fixed to the base plate 90.
(2) The lower metal fitting 40 is inserted into the guide rail portion 34 of the base metal fitting 30 and temporarily fixed.
(3) The solar cell module 11 a is arranged on the lower metal fitting 40, the inner flange 26 a of the module is held by the holding portion 46 of the lower metal fitting 40, and the lower metal fitting 40 is fixed to the base metal fitting 30.
(4) The upper metal fitting 50 is disposed on the lower metal fitting 40, the insertion portion 54 of the upper metal fitting 50 is inserted into the outer groove 24a of the solar cell module 11a, and the upper metal fitting 50 is fixed to the base metal fitting 30.
(5) The solar cell module 11b is arranged on the upper metal fitting 50, and the insertion portion 56 of the upper metal fitting 50 is inserted into the outer groove 24b of the module.

  As shown in FIG. 11A, the base metal fitting 30 is fixed to the base plate 90 with reference to the position of the eaves side end fixing metal fitting. The base metal fitting 30 is fixed to the base plate 90 using, for example, wood screws 15 with a spacer 92 interposed between the base metal 30 and the roof material 91 as necessary. The wood screw 15 penetrates the roof material 91 and is fixed to the base plate 90. However, from the viewpoint of preventing the roof material 91 from being damaged, the wood screw 15 is attached to avoid the vicinity of the end of the roof material 91. In the example shown in FIG. 11A, wood screws 15 are attached to three screw holes 32 excluding the second screw hole 32 counted from the ridge side in each fixing portion 31.

  Subsequently, as illustrated in FIG. 11B, the lower metal fitting 40 is inserted into the guide rail portion 34 of the base metal fitting 30 and is slid to a predetermined position, and the lower metal fitting 40 is temporarily fixed to the predetermined position. The lower metal fitting 40 is inserted into the rail portion from the longitudinal end portion of the guide rail portion 34 in a state where the bolt 16 is inserted into the bolt hole 42. At this time, the head of the bolt 16 is inserted into the guide rail portion 35 for the bolt. The bolt 16 protrudes from between each of the second flanges 39 (see FIG. 5) and stands on the base metal fitting 30, and the head is supported by the bolt guide rail 35 so as to be slidable.

  The lower metal fitting 40 is temporarily fixed at a predetermined location by attaching the nut 17 to the bolt 16 inserted through the bolt hole 42. The predetermined portion is determined based on the position of the bolt 16 attached to the eaves side end fixing bracket as described above. The lower metal fitting 40 is temporarily fixed so that, for example, the bolt 16 inserted through the bolt hole 42 is positioned at the predetermined position.

  Subsequently, as illustrated in FIG. 11C, the frame 13 a of the solar cell module 11 a is disposed on the base portion 43 of the lower metal fitting 40. Then, the lower metal fitting 40 is pulled toward the ridge, and the lower metal fitting 40 is moved to a position where the holding portion 46 presses the inner flange 26a of the frame 13a, that is, to a position where the inner flange 26a is inserted deeply between the pedestal portion 43 and the holding portion 46. Move to the building side. Thereby, the inner collar 26a is clamped by the lower metal fitting 40, and the lower metal fitting 40 is firmly fixed to the frame 13a. Since the lower metal fitting 40 is temporarily fixed by the nut 17 and the bolt hole 42 is a long hole extending in the eave building direction, the lower metal fitting 40 is placed on the building side with the bolt 16 positioned at the predetermined position. Can be moved. Thereafter, the nut 17 is finally tightened to firmly fix the lower metal fitting 40 to the base metal fitting 30.

  Subsequently, as shown in FIG. 12A, the upper metal fitting 50 is disposed on the base portion 41 of the lower metal fitting 40, and the insertion portion 54 is inserted into the outer groove 24a of the solar cell module 11a. Thereby, the upper metal fitting 50 is fixed to the frame 13a. At this time, the bolt 16 with the nut 17 attached to the bolt hole 53 of the upper metal fitting 50, that is, the shaft portion of the bolt 16 positioned above the nut 17 is inserted. Although the first base portion 51 of the upper metal fitting 50 is in contact with the base portion 41, the second base portion 52 in which the bolt holes 53 are formed is formed higher than the first base portion 51. It can be arranged on the lower metal fitting 40 without interfering with the nut 17. Next, the nut 18 is attached to the bolt 16 inserted through the bolt hole 53, and the upper metal fitting 50 is fixed to the base metal fitting 30.

  Subsequently, as shown in FIG. 12B, the frame 13b of the solar cell module 11b is arranged on the first base portion 51 of the upper metal fitting 50, and the insertion portion 56 is inserted into the outer groove 24b. Thereby, the upper metal fitting 50 is fixed to the frame 13b. For example, another fixing bracket 14 is attached to the ridge side end of the solar cell module 11b. Alternatively, a ridge-side end fixing bracket is attached to the ridge-side end.

  The solar power generation device 10 having the above-described configuration can be easily constructed through the above simple steps, and is excellent in workability. Furthermore, in the solar power generation device 10, since the coupling force between the solar cell module 11 and the fixture 14 is strong and the solar cell module 11 is firmly fixed to the roof, excellent load resistance can be obtained. Moreover, since the solar power generation apparatus 10 uses the base metal fitting 30 with a short length, for example, compared with the case where a long frame is used, it contributes to weight reduction, reduction of material cost, and the like. In addition, since the base metal fitting 30 is low in height, the solar cell module 11 can be attached without significantly rising from the roof. Moreover, according to the solar power generation device 10, it is possible to reduce the gap between the solar cell modules 11a and 11b, for example, as compared with an attachment structure using an outer casing projecting outside the module frame, thereby saving space. Can also be planned.

The solar power generation device 100 which is 2nd Embodiment is shown in FIG.13 and FIG.14.
In the following, the same reference numerals are used for the same components as those in the above embodiment, and redundant description is omitted, and differences from the above embodiment will be particularly described in detail.

FIG. 13 is a cross-sectional view of the solar power generation device 100, and FIG. 14 is a perspective view of the fourth metal fitting 160.
As shown in FIG. 13, the photovoltaic power generation apparatus 100 includes a base metal fitting 30, a lower metal fitting 140, an upper metal fitting 150, and a frame 13 a of the solar battery module 11 a as fixing metal fittings that are attached across the solar cell modules 11 a and 11 b. And a fourth metal fitting 160 that engages with. That is, the solar power generation device 100 differs from the solar power generation device 10 in that the fourth metal fitting 160 is provided. Due to the use of the fourth metal fitting 160, part of the structure of the lower metal fitting 140 and the upper metal fitting 150 is also different from the lower metal fitting 40 and the upper metal fitting 50 of the solar power generation device 10. The fourth metal fitting 160 is disposed on the eaves side with respect to the upper metal fitting 150, and is inserted into the outer groove 24a of the frame 13a.

  As shown in FIGS. 13 and 14, the fourth metal fitting 160 has a substantially U shape, and is inserted into the base portion 161 disposed on the pair of flange portions 36 constituting the guide rail portion 34 and the outer groove 24 a. And an insertion portion 162 to be inserted. The insertion portion 162 is formed by folding the ridge side portion of the fourth metal fitting 160 toward the eaves side. The insertion portion 162 is preferably formed with a convex portion 163 that contacts the upper surface of the bottom plate 25a. Although the convex part 163 may be formed in the horizontal direction center part of the insertion part 162, etc., Preferably it is formed in the horizontal direction both ends of the insertion part 162, respectively. The lower metal fitting 140 and the upper metal fitting 150 are fixed to the base metal fitting 30 using the bolts 16 and the nuts 17 and 18 as in the case of the solar power generation device 10, but the fourth metal fitting 160 does not have a bolt hole. The base metal fitting 30 is fixed by engaging with the lower metal fitting 140.

  The lower metal fitting 140 has a through hole 141 into which the lower part of the fourth metal fitting 160 is inserted, for example. The through hole 141 is formed in the ridge side portion of the pedestal portion 43, and preferably formed from the ridge side portion of the pedestal portion 43 to the eaves side end portion of the base portion 41. The base part 161 of the fourth metal fitting 160 is inserted into the through hole 141, and at least the tip part of the base part 161 is hooked on the lower surface of the pedestal part 43. That is, the base portion 161 is inserted between the pedestal portion 43 and the flange portion 36 and preferably contacts the pedestal portion 43 and the flange portion 36. The base portion 161 has substantially the same thickness as the distance between the pedestal portion 43 and the flange portion 36, for example.

  In the solar power generation device 100, as in the case of the solar power generation device 10, the frame 13 a is placed on the pedestal portion 43 of the lower metal fitting 140, and the inner collar 26 a is pressed by the pressing portion 46. The insertion portion 162 of the fourth metal fitting 160 is inserted into the outer groove 24a of the frame 13a as described above, and the bottom plate 25a of the frame 13a is sandwiched between the insertion portion 162 and the pedestal portion 43. An example of a suitable distance between the tip of the convex portion 163 of the insertion portion 162 and the pedestal portion 43 is 0.95 to 1.05 times the thickness of the bottom plate 25a. As described above, since the base portion 161 is inserted between the pedestal portion 43 and the flange portion 36, a gap corresponding to the bottom plate 25 b and the pedestal portion 43 is formed between the insertion portion 162 and the base portion 161. In this way, the ridge side portion of the fourth metal fitting 160 is folded back to the eave side.

  The upper metal fitting 150 has the same configuration as that of the upper metal fitting 50 except that the upper metal fitting 150 does not have, for example, the insertion portion 54 and does not engage with the frame 13a. The upper metal fitting 150 has an insertion portion 56 that is inserted into the outer groove 24b of the frame 13b, and is fixed to the frame 13b. The insertion portions 56 may be formed on both lateral sides of the first base portion 51, but preferably are formed over the entire lateral length of the first base portion 51.

  Similar to the solar power generation device 10, the solar power generation device 100 having the above configuration is excellent in load resistance and workability. After the solar cell module 11a is placed on the lower metal fitting 140, the fourth metal fitting 160 is inserted into the outer groove 24a and the base portion 161 into the through hole 141 of the lower metal fitting 140, whereby the frame 13a. And it can fix to the base metal fitting 30. In the solar power generation device 100, since the base portion 161 of the fourth metal fitting 160 is interposed in the gap between the pedestal portion 43 and the flange portion 36 of the lower metal fitting 140, for example, a load applied to the pedestal portion 43 is transmitted to the flange portion 36. Can be dispersed.

In FIGS. 15-17, the solar power generation device 200 which is 3rd Embodiment is shown.
In the following, the same reference numerals are used for the same components as those in the above embodiment, and redundant description is omitted, and differences from the above embodiment will be particularly described in detail.

FIG. 15 is a cross-sectional view of the solar power generation device 200.
As shown in FIG. 15, the photovoltaic power generation apparatus 200 includes a base metal fitting 230, a lower metal fitting 40, and an upper metal fitting 50 as fixed metal fittings attached across the solar cell modules 11 a and 11 b. On the roof where the solar power generation device 200 is installed, the roof material is not provided at least in the portion where the solar cell module 11 is installed, and the base plate 260 is installed on the field plate 90. The base metal fitting 230 is fixed to the base plate 90 using, for example, wood screws 15 attached to the screw holes 232 of the fixing portion 231. In this embodiment, since the roof material is not provided in the portion to which the wood screw 15 is attached, the length of the base metal fitting 230 along the eaves ridge direction is made shorter than the case of the solar power generation device 10 and the screw hole 232 is also provided. The number of can be reduced.

  Similar to the base metal fitting 30, the base metal fitting 230 includes a guide rail portion 234 and a bolt guide rail portion 235. On the other hand, the base metal fitting 230 has a shorter length along the eaves-ridge direction than the base metal fitting 30 as described above, and the number of screw holes 232 is small. Although details will be described later, the base metal fitting 230 has a notch portion 240 into which an end of another base plate 260 installed on the ridge side is inserted between the base metal fitting 230 and the base plate 260 to which the metal fitting is fixed. Different from the metal fitting 30.

FIG. 16 shows a state where the base plate 260 is installed on the base plate 90.
As illustrated in FIG. 16, a plurality of base plates 260 are installed under the solar cell module 11, and a base metal fitting 230 is provided on each base plate 260. Although it is possible to directly fix the base metal fitting 230 to the base plate 90 without using the base plate 260, the use of the base plate 260 facilitates the positioning of the base metal fitting 230 and improves the workability. When the base plate 260 is used, the base metal fitting 230 is fixed (preliminarily fixed) in advance at a predetermined position on the base plate 260, and the base plate is transported to the roof and installed on the base plate 90. The base plate 260 can be installed with high accuracy while being simple as will be described later.

  The base plate 260 is, for example, a metal plate-like member, and is directly fixed to the base plate 90 without interposing a roofing material between the base plate 260 and the base plate 90. A waterproof sheet or the like may be provided between the base plate 260 and the base plate 90. In the example shown in FIG. 16, one base metal fitting 230 and two holding portions 261 are provided on one base plate 260. The base plate 260 has, for example, about half the size of the solar cell module 11, and one solar cell module 11 (indicated by a one-dot chain line) is installed on approximately two base plates 260. As in the case of the solar power generation device 10, the solar cell module 11 is fixed to the base metal fitting 230 at a total of four locations, two at each of the eaves side and the ridge side.

  The base plate 260 is disposed on the field plate 90 from one side in the lateral direction of the eaves side (hereinafter referred to as “left side”). On the base plate 260a arranged on the left side, a part of the base plate 260c arranged adjacent to the other side in the horizontal direction (hereinafter referred to as “right side”) is overlaid. In addition, a part of the base plate 260b disposed adjacent to the ridge side is overlaid on the base plate 260a. In this way, the base plate 260 is sequentially installed from the left on the eaves side to the right on the ridge side. The base plates 260a, 260b, and 260c show a relative positional relationship similarly to the case of the solar cell module 11, and the same plate can be used for any of them.

  The holding part 261 is provided on the right side of each base plate 260. The holding portion 261 provided on the base plate 260a has a gap in which the base plate 260c can be inserted between the holding portion 261 and the base plate 260a. The end of the base plate 260c that is overlaid on the base plate 260a is inserted into the gap and pressed by the holding portion 261 so as not to float upward.

  As shown in FIGS. 15 to 17, a cutout 240 is formed in the base metal fitting 230. The base metal fitting 230 is provided on the ridge side of each base plate 260, and the notch 240 is formed on the ridge side end of the base metal piece 230. For example, a gap in which an end of the base plate 30b can be inserted exists between the base metal fitting 230 provided on the base plate 260a and the base plate 260a. The notch 240 is formed by cutting out the lower portion of the pedestal 233 and the fixing portion 231 located at the ridge side end of the base metal 230, and forms the gap between the base metal 230 and the base plate 260a. In other words, a part of the base metal fitting 230 protrudes toward the ridge with the gap between the base plate 260a and the end of the base plate 260b that is overlaid on the base plate 260a does not float upward by the protrusion. Pressed down.

  In addition, it is good also as a form which combined the component of said each embodiment, or the form rearranged. For example, in the photovoltaic power generation apparatus 300 (fourth embodiment) illustrated in FIG. 18, the base metal fitting 230 is fixed to the base plate 90 on which the base plate 260 is installed, and the lower metal fitting 140, the upper metal fitting 150, And the fourth metal fitting 160 is fixed.

  DESCRIPTION OF SYMBOLS 10 Solar power generation device, 11, 11a, 11b Solar cell module, 12, 12a, 12b Solar cell panel, 13, 13a, 13b Frame, 14 Fixing bracket, 15 Wood screw, 16 bolt, 17, 18 Nut, 20 Main part , 21 collar part, 22, 22a, 22b inner groove, 23 collar part, 24, 24a, 24b outer groove, 25, 25a, 25b bottom plate, 26, 26a, 26b inner collar, 30, 30x base bracket, 31, 31x fixed Part, 32, 32x screw hole, 33 pedestal part, 34, 34x guide rail part, 35, 35x bolt guide rail part, 36, 36x collar part, 37 support part, 38 first collar part, 39 second collar part, 40 Lower bracket, 41 Base part, 42 Bolt hole, 43 Base part, 44 Leg part, 45 Convex part, 46 Presser part, 47 Convex part, 48 Standing wall part 50 upper metal fitting, 51 first base part, 52 second base part, 53 bolt hole, 54 insertion part, 55 convex part, 56 insertion part, 57 convex part, 58, 59 standing wall part, for 60 eaves side edge part Lower bracket, 61 Base portion, 62 Bolt hole, 64 Leg portion, 66 Insertion portion, 67 Convex portion, 70 Eave side end upper bracket, 71 First base portion, 72 Second base portion, 73 Bolt hole, 74 Fixing part, 76 insertion part, 77 convex part, 80 decorative cover, 81 groove part, 82 connecting part, 83 screw, 90 base plate, 91 roofing material, 92 spacer, 100 solar power generation device, 140 lower metal fitting, 141 through hole , 150 Upper bracket, 160 Fourth bracket, 161 Base portion, 162 Insertion portion, 163 Convex portion, 200 Solar power generation device, 230 Base bracket, 231 Fixing portion, 232 Screw hole, 233 Base portion, 234 Guide rail part, 235 guide rail part for bolts, 236 collar part, 240 notch part, 260 base plate, 261 holding part, 300 solar power generation device

Claims (7)

A plurality of solar cell modules having a solar cell panel and a frame provided at an edge of the panel;
Attached across each of the adjacent solar cell modules, a fixing bracket for fixing each module to the roof,
A solar power generation device comprising:
The fixing bracket is
A lower fitting that engages with the frame of at least one of the adjacent solar cell modules; and
An upper metal fitting fixed on the lower metal fitting and engaged with the frame of at least the other solar cell module among the adjacent solar cell modules;
A base bracket that has a guide rail portion that slidably supports the lower bracket, and is fixed to the roof base plate;
Bei to give a,
The base metal fitting has a pair of flange portions constituting the guide rail portion,
The lower bracket includes a base portion disposed on the pair of flanges, and a pair that extends downward from the base portion and wraps around the lower surface side of the pair of flanges, and sandwiches the flange with the base portion. A solar power generation device having a leg portion . A bolt for fixing the lower bracket and the upper bracket to the base bracket;
The base metal fitting has a bolt guide rail portion that slidably supports the head of the bolt between the pair of flange portions,
The lower metal fitting and the upper metal fitting each have a bolt hole through which the bolt supported by the bolt guide rail portion is inserted.
The solar power generation device according to claim 1 . A nut for a lower bracket for fixing the lower bracket, which is attached to the bolt;
A nut for an upper bracket for fixing the upper bracket, which is attached to the bolt;
With
Between the lower metal fitting and the upper metal fitting, a space in which the lower metal fitting nut can be attached is provided,
The solar power generation device according to claim 2 . The solar cell module is
A first solar cell module, and a first solar cell module having a first frame provided on an edge of the panel and installed on the eaves side of the roof;
A second solar cell module having a second solar cell panel and a second frame provided at an edge of the panel, and being arranged adjacent to the ridge side of the first solar cell module;
Including
The fixing bracket is attached across the first and second solar cell modules,
The base bracket is fixed to the base plate so that the guide rail portion extends along the eaves direction of the roof.
The solar power generation device of any one of Claims 1-3 . Each frame includes an inner groove that accommodates an end edge portion of each solar cell panel, an outer groove provided on the opposite side of each solar cell panel, and an inner flange projecting inside each solar cell module. Each has
The lower metal fitting has a presser part for pressing the inner flange of the first frame,
The upper metal fitting has a ridge-side insertion portion that is inserted into the outer groove of the second frame.
The solar power generation device according to claim 4 . The upper metal fitting has an eaves side insertion portion to be inserted into the outer groove of the first frame.
The solar power generation device according to claim 5 . The fixing bracket includes a fourth bracket inserted into the outer groove of the first frame,
The lower metal fitting has a through hole into which a lower part of the fourth metal fitting is inserted.
The solar power generation device according to claim 5 .

Images