JP7215931B2 - photovoltaic device - Google Patents

Description

The present disclosure relates to photovoltaic power generation devices.

A solar power generation device generally includes a plurality of solar cell modules, a mount on which the solar cell modules are mounted, and metal fittings for fixing the solar cell modules to the mount. For example, in the photovoltaic power generation devices disclosed in Patent Documents 1 and 2, the module is fixed to the mount using an outer flange formed on the frame of the photovoltaic module. In this case, two solar cell modules are arranged on the frame so as to sandwich a bolt erected on the frame, and a substantially U-shaped pressing metal fitting is attached across the two outer flanges. The pressing metal fitting is fixed to the bolt and presses the two outer collars from above.

JP 2015-063825 A JP 2015-078484 A

By the way, the photovoltaic power generation device is required to be able to firmly fix the photovoltaic module to an installation target such as a roof and to be excellent in workability. In the photovoltaic power generation devices disclosed in Patent Documents 1 and 2, it is sometimes necessary to perform construction work in an unreasonable posture, such as the need to attach a pressing metal fitting over the module, and there is room for improvement in terms of workability. .

A solar power generation device according to one aspect of the present disclosure includes a first solar cell module including a first frame formed with a first outer flange, a second frame formed with a second outer flange, the first A second solar cell module is arranged adjacent to the solar cell module, and the first frame and the second frame are placed so that the bolt is held in a state where the shaft portion is erected, and the bolt is sandwiched therebetween. and a pressing metal fitting mounted across the first frame and the second frame and fixed to the pedestal using the bolt. The presser fitting is fixed to the bolt with a gap that allows the second outer flange of the second frame to be inserted between it and the pedestal, and the second outer flange is inserted into the gap. a base that covers the second outer collar and contacts the side surface of the second frame; and a pressing part that extends from an end of the base and presses the first outer collar of the first frame, The base portion and the pressing portion are formed with protrusions that bite into the first frame or the second frame, respectively.

According to the solar power generation device according to one aspect of the present disclosure, it is possible to easily attach the solar cell module to an installation target such as a roof and obtain excellent workability. Also, the solar cell module can be firmly fixed to the installation target. Furthermore, since only the solar cell module to be maintained can be removed, there is no need to remove the surrounding solar cell modules, and maintainability is excellent.

1 is an exploded perspective view of a solar power generation device that is an example of an embodiment; FIG. 1 is a cross-sectional view of a solar cell module that is an example of an embodiment; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the solar power generation device which is an example of embodiment. 1 is a perspective view of a pressing metal fitting that is an example of an embodiment; FIG. It is a figure for demonstrating the construction method of the solar power generation device which is an example of embodiment. It is a sectional view of a photovoltaic power generation device which is another example of an embodiment. FIG. 7 is a perspective view of a pressing metal fitting that constitutes the photovoltaic power generation device shown in FIG. 6 ; It is a sectional view of a photovoltaic power generation device which is another example of an embodiment. FIG. 9 is a perspective view of a pressing metal fitting and a supporting metal fitting that constitute the photovoltaic power generation device shown in FIG. 8 ;

Hereinafter, embodiments of a solar power generation device according to the present disclosure will be described in detail with reference to the drawings. The embodiments described below are examples, and the solar power generation device of the present disclosure is not limited to the embodiments described below.

In this embodiment, the photovoltaic power generation device shall be installed on the roof. The arrow α shown in the drawings indicates the direction of the eaves of the roof, the arrow β indicates the direction of the girders of the roof, and the arrow γ indicates the direction perpendicular to the roof surface (the surface of the roof material). For convenience of explanation, the direction along the eaves ridge direction may be called the vertical direction, the direction along the girder direction may be called the horizontal direction, and the direction perpendicular to the roof surface may be called the vertical direction.

FIG. 1 is an exploded perspective view of a solar power generation device 10 that is an example of an embodiment. As illustrated in FIG. 1, the photovoltaic power generation device 10 includes a plurality of photovoltaic modules 11 and is attached to a roof 100 on which a roofing material 101 is laid. The solar power generation device 10 includes a solar cell module 11A (first solar cell module), a solar cell module 11B (second solar cell module) arranged adjacent to the solar cell module 11A, and a mount 30 . The photovoltaic power generation device 10 also includes a pressing metal fitting 40 (see FIG. 3 and the like) for fixing the solar cell modules 11A and 11B to the mount 30 .

The solar cell module 11A has a frame 13A (first frame) on which an outer flange 23A (first outer flange) is formed. Similarly, the solar cell module 11B has a frame 13B (second frame) on which an outer flange 23B (second outer flange) is formed. The pedestal 30 holds the bolt 25 with the shaft portion erected. Frames 13A and 13B are mounted on frame 30 so as to sandwich bolt 25 therebetween. Although details will be described later, the pressing metal fitting 40 is attached across the frames 13A and 13B and fixed to the pedestal 30 using bolts 25 .

The solar cell module 11B is arranged adjacent to the solar cell module 11A with a gap between the solar cell module 11A and the presser fitting 40 or the like. In the present embodiment, for convenience of explanation, for any two solar cell modules 11 arranged adjacent to each other, the module arranged on the eaves side of the roof 100 is the solar cell module 11A, and the module arranged on the ridge side is the solar cell module 11A. Let it be solar cell module 11B.

The solar cell module 11 has a solar cell panel 12 . The frame 13 is installed on the edge of the solar panel 12 . The solar panel 12 is a flat panel in which a string of a plurality of solar cells is sandwiched between two substrates, and has, for example, a rectangular shape in plan view. The frame 13 is generally formed by extruding a metal material whose main component is aluminum, and is installed so as to surround the solar cell panel 12 on all four sides. In this embodiment, the plurality of solar cell modules 11 are arranged such that the short side direction of the solar cell module 11 is substantially parallel to the eaves ridge direction.

The solar cell module 11 is fixed to the pedestal 30 at a total of four points, for example, at two points on the eaves side and two points on the ridge side. A plurality of frames 30 are arranged on the roof 100 . On the back side of one solar cell module 11, pedestals 30 are arranged at positions corresponding to the left and right of the eaves-side end of the module (both sides in the girder direction) and at positions corresponding to the left and right of the ridge-side end of the module. . As described above, the frames 13A and 13B are mounted on the mount 30 arranged at the boundary between the solar cell modules 11A and 11B.

The mount 30 is arranged on the roofing material 101 and fixed to the sheathing board 102 of the roof 100 . The mount 30 is arranged such that its longitudinal direction is along the eaves direction of the roof 100 and its width direction is along the girder direction. As illustrated in FIG. 1 , when the frame 30 is fixed across two roof materials 101 , it is preferable to provide a spacer 104 at the stepped portion formed between the roof materials 101 . The spacer 104 fills in the step and enables stable mounting of the pedestal 30 . By arranging the frame 30 directly on the roofing material 101, the height of the solar cell module 11 from the roof surface, which is the surface of the roofing material 101, can be lowered. Feel better.

The mount 30 has a guide rail portion 31 formed along the eaves ridge direction of the roof 100 and slidably holding the head of the bolt 25 . In other words, the mount 30 is attached to the roof 100 so that the longitudinal direction of the guide rail portion 31 is along the eaves ridge direction. In the example shown in FIG. 1, a plurality of mounts 30 are arranged side by side in the eaves ridge direction and the girder direction. The mounts 30 arranged in the eaves ridge direction are arranged at regular intervals in the eaves ridge direction according to the length of each solar cell module 11 along the eaves ridge direction. The frames 13A and 13B are placed on the base 30 so that their longitudinal directions are substantially orthogonal to the guide rail portions 31. As shown in FIG.

FIG. 2 is a cross-sectional view of an end portion of the solar cell module 11. As shown in FIG. As illustrated in FIG. 2, the frame 13 installed on the edge of the solar panel 12 includes a main body 20 having a hollow prismatic shape including an upper surface, a lower surface, and a side surface, and an upper surface of the main body 20. and an inner groove 22 opening toward the inside of the module. The hook portion 21 extends straight upward from the outside of the main body 20 and is bent inward in the middle to form a substantially L-shaped cross section. The inner groove 22 is a portion into which the edge of the solar cell panel 12 is inserted, and is formed between the upper surface of the main body 20 and the hook portion 21 .

The frame 13 has an outer flange 23 projecting outside the module. The outer flange 23 extends outward from the lower end of the main body 20 in parallel with the lower surface of the main body 20 and is bent upward in the middle to form a substantially L-shaped cross section. The outer brim 23 is a portion used when fixing the frame 13 to the frame 30 using the pressing metal fittings 40, and may be formed only on the frame attached along the long sides of the solar panel 12. .

A coating is generally formed on the surface of the frame 13 to prevent the frame 13 from corroding. The coating is, for example, an insulating coating such as aluminum oxide. Moreover, in this embodiment, the mount 30 is made of a metal material containing aluminum, stainless steel, or the like as a main component, and an insulating film is formed on the surface thereof.

Hereinafter, the mounting structure of the solar cell module 11 will be described in detail with further reference to FIGS. 3 and 4. FIG. FIG. 3 is a cross-sectional view of the boundary between the solar cell modules 11A and 11B cut in the eaves direction. FIG. 4 is a perspective view of a pressing metal fitting 40 that is an example of an embodiment.

As illustrated in FIG. 3, the solar cell modules 11A and 11B are fixed to the roof 100 using the mounting frame 30 and the pressing metal fittings 40. As shown in FIG. The mount 30 is fixed to the sheathing board 102 of the roof 100 with screws 105 . In the example shown in FIG. 3, the ridge side portion of the mount 30 is fixed on the roof material 101, and the eaves side portion is fixed on the spacer 104, respectively. A wood screw with a rubber packing can be used for the screw 105 . A rubber sheet 103 (for example, a butyl rubber sheet) is provided between the frame 30 and the roof material 101 and spacers 104 .

The presser fitting 40 engages with the frames 13A and 13B of the solar cell modules 11A and 11B and is fixed to the pedestal 30 using the bolts 25 held by the pedestal 30 . The bolt 25 has its head inserted into the guide rail portion 31 of the frame 30 so that the shaft portion stands upright from the upper surface of the frame 30 on which the frames 13A and 13B are placed. The shaft portion of the bolt 25 preferably has a length such that the tip does not protrude upward from between the solar cell modules 11A and 11B.

The guide rail portion 31 holds the bolt 25 in such a state that the head portion of the bolt 25 cannot be pulled out upward and is slidable in the eaves ridge direction. The guide rail portion 31 is preferably formed over the entire length of the pedestal 30 in the eaves ridge direction. In this case, since the degree of freedom of the position of the bolt 25 in the eaves ridge direction of the mount 30 is increased, good workability can be obtained.

As exemplified in FIGS. 3 and 4, the presser fitting 40 includes a base portion 41 fixed to the bolt 25 with a gap that allows the outer flange 23B of the frame 13B to be inserted between the base portion 40 and the base portion 41. It has a pressing portion 42 that extends from the end portion and presses the outer collar 23A of the frame 13A. The pressing portion 42 is formed perpendicular to the base portion 41 and extends downward from the eaves side end portion of the base portion 41 . In other words, the presser fitting 40 is arranged at the boundary between the solar cell modules 11A and 11B so that the pressing portion 42 is located at the eaves side end of the presser fitting 40 and extends downward. The pressing metal fitting 40 has a substantially L-shaped cross section.

The presser fitting 40 has an insertion hole 43 through which the bolt 25 is passed, and is pressed from above by a nut 26 fastened to the bolt 25 . An insertion hole 43 is formed in the base portion 41 , and the nut 26 is fastened to the shaft portion of the bolt 25 protruding from the upper surface of the base portion 41 . The insertion hole 43 is preferably an elongated hole extending in the eaves ridge direction. In this case, it becomes easier to adjust the placement of the presser fitting 40 . The pressing portion 42 that abuts on the outer collar 23A of the frame 13A presses the outer collar 23A from above by the fastening force of the nut 26 .

The base 41 covers part of the outer flange 23B in a state in which the outer flange 23B of the frame 13B is inserted into the gap formed between the base 41 and the upper surface of the pedestal 30, and covers the side surface of the frame 13B (of the main body 13B). side). By arranging the base portion 41 above the outer brim 23B, it is possible to prevent the frame 13B from lifting and coming off. The lateral lengths of the base portion 41 and the pressing portion 42 along the girder direction of the roof 100 are not particularly limited, and may be shorter or longer than the width of the frame 30 .

Since the vertical length of the base 41 along the eaves ridge direction affects the size of the space between the solar cell modules 11A and 11B, the distance can be reduced within a range that does not hinder the mounting of the nuts 26 and the like. and preferably short. The base portion 41 has a length along the eaves ridge direction of at least the outer flanges 23A, 23B and a longitudinal length exceeding the length of the diameter of the shank of the bolt 25 added.

The pressing portion 42 is formed longer than a portion extending upward from the bottom portion of the outer flange 23A that contacts the upper surface of the pedestal 30 (hereinafter, may be referred to as a "wall portion"), and is formed to be longer than the outer flange when the nut 26 is tightened. 23A is pressed to hold it against the pedestal 30. As shown in FIG. The pressing portion 42 has a length that is shorter than the shaft portion of the bolt 25, for example, and does not interfere with the wall portion of the outer collar 23A. The presser fitting 40, the bolt 25, and the nut 26 are preferably arranged within the gap between the solar cell modules 11A and 11B.

Protrusions 44 and 45 that bite into the frames 13B and 13A are formed on the base portion 41 and the pressing portion 42, respectively. The projection 44 is formed at the tip of the base portion 41 that contacts the side surface of the frame 13B, and the projection 45 is formed at the tip (lower end) of the pressing portion 42 that contacts the outer flange 23A of the frame 13A. As described above, an insulating film is formed on the surfaces of the frames 13A and 13B, but by providing the protrusions 44 and 45, the pressing metal fitting 40 penetrates the film and establishes electrical connection with the frames 13B and 13A. can be done. Then, the solar cell modules 11A and 11B can be grounded via the pressing metal fitting 40, the bolt 25, and the like. In addition, the projections 44 and 45 strongly engage the pressing metal fittings 40 with the frames 13A and 13B, thereby preventing the solar cell modules 11A and 11B from slipping laterally.

The tip portion of the base portion 41 is bent in the direction in which the pressing portion 42 extends, i.e., in the direction of the base 30, within a range that does not hinder the insertion of the outer flange 23B of the frame 13B between the base 41 and the base 30. preferable. In this case, it becomes easier for the pressing metal fittings 40 to engage with the frame 13B, and the solar cell module 11B can be fixed more stably. The distal end portion of the base portion 41 may be curved toward the mount 30 or may be bent.

In this embodiment, since an insulating film is also formed on the surface of the mount 30 , a toothed washer that breaks through the film may be attached to the bolt 25 . For example, a toothed washer may be arranged under the presser fitting 40 so as to contact the upper surface of the pedestal 30 , and a nut may be fastened to the bolt 25 to press the washer against the pedestal 30 . The bolt 25 and the pedestal 30 can be electrically connected by the toothed washer breaking through the film of the pedestal 30 . Note that the toothed washer can also be attached to the bolt 25 within the guide rail portion 31 of the pedestal 30 .

In the form illustrated in FIG. 4, a plurality of protrusions 44 are formed at the ridge-side end (tip) of the base 41 that contacts the frame 13B. A plurality of protrusions 45 are formed at the lower end of the pressing portion 42 that contacts the frame 13A. In the example shown in FIG. 4, three projections 44 are formed at the tip of the base portion 41 and five projections 45 are formed at the lower end of the pressing portion 42 at equal intervals, but the number of projections is not particularly limited. The ridge-side end portion of the base portion 41 and the lower end portion of the pressing portion 42 may be formed in a wave-like shape with repeated unevenness, and the tips of a plurality of protrusions may be projections 44 and 45 . The plurality of protrusions 45 and the plurality of protrusions 44 bite into the frame 13A and the frame 13B, respectively, so that the solar cell modules 11A and 11B can be more reliably prevented from lateral displacement.

The presser fitting 40 has a leg portion 46 that extends from the base portion 41 and abuts on the pedestal 30 . The leg portion 46 extends in the same direction as the pressing portion 42, and can support the base portion 41 substantially parallel to the upper surface of the pedestal 30 by contacting the upper surface of the pedestal 30 with the pressing portion 42 in contact with the outer collar 23A, for example. vertical length. The vertical length of the leg portion 46 is longer than the vertical length of the pressing portion 42 . In order to stably support the base portion 41 pressed by the nut 26, it is preferable that two leg portions 46 are formed so as to sandwich the bolt 25 to which the nut 26 is fastened.

In the form shown in FIG. 4 , one leg portion 46 is formed at each lateral end portion of the base portion 41 . Each leg 46 is positioned to fit in the gap between the outer flanges 23A and 23B with the base 41 in contact with the side surfaces of the frames 13A and 13B so as not to interfere with the outer flanges 23A and 23B. It is formed. Each leg 46 is formed with a constant length in the vertical direction of the presser fitting 40 . That is, the lower ends of the legs 46 contacting the upper surface of the pedestal 30 are substantially parallel to the base 41 . In this case, the base 41 can be supported substantially parallel to the upper surface of the pedestal 30 .

According to the photovoltaic power generation device 10 having the above configuration, the solar cell module 11 can be easily attached to the roof 100 and excellent workability can be obtained, and the solar cell module 11 can be firmly fixed to the roof 100 . In addition, the solar cell module 11 can be easily removed, and the maintainability is excellent.

As illustrated in FIG. 5, after the solar cell module 11A is placed on the mount 30 and the pressing metal fittings 40 are attached, the outer flange 23B of the solar cell module 11B is placed between the base 41 and the upper surface of the mount 30. As shown in FIG. The solar power generation device 10 can be constructed by a simple operation of inserting from the eaves side. Specifically, the solar cell modules 11A and 11B are fixed to the frame 30 installed on the roof 100 in the following procedure.
(1) Place the frame 13A of the solar cell module 11A on the mount 30 .
(2) Insert the head portion of the bolt 25 into the guide rail portion 31 of the frame 30 and slide it to the vicinity of the frame 13A, and erect the shaft portion of the bolt 25 on the frame 30 .
(3) The shaft portion of the bolt 25 is passed through the insertion hole 43 of the presser fitting 40, and the pressing portion 42 is arranged on the outer collar 23A of the frame 13A.
(4) The nut 26 is fastened to the bolt 25 to press the base portion 41 from above, and the pressing portion 42 presses the outer collar 23A.
(5) Slide the solar cell module 11B from the ridge side of the frame 30 and insert the outer flange 23B of the frame 13B into the gap formed between the base 41 and the upper surface of the frame 30 .

Other embodiments of the solar power generation device according to the present disclosure will be described below. In the following, differences from the above-described embodiment will be mainly described, and portions common to the above-described embodiment will be denoted by the same reference numerals, and redundant description will be omitted.

FIG. 6 is a cross-sectional view of a photovoltaic power generation device 10X that is another example of the embodiment. FIG. 7 is a perspective view of a pressing metal fitting 40X that constitutes the photovoltaic power generation device 10X. A solar power generation device 10X illustrated in FIG. 6 is common to the solar power generation device 10 in that a pressing metal fitting 40X includes a base portion 41, a pressing portion 42, and two leg portions 46X. On the other hand, in the photovoltaic power generation device 10X, the legs 46X are formed to be longer on the second frame 13B side than on the first frame 13A side, that is, longer on the ridge side than on the eaves side. , unlike the photovoltaic device 10 with legs 46 of constant length.

As shown in FIG. 7, the length of the leg portion 46X in the vertical direction gradually increases as it moves away from the pressing portion 42, that is, as it approaches the tip of the base portion 41 on which the projection 44 is formed. The vertical length of the leg portion 46X is not constant along the vertical direction of the presser fitting 40X, and the lower end of the leg portion 46X and the base portion 41 are not formed in parallel. Each leg 46X is formed so as not to interfere with the outer collars 23A and 23B.

In the photovoltaic power generation device 10X, the base 41 is inclined such that the ridge-side end of the base 41 is positioned higher than the eaves-side end while the leg 46X is in contact with the upper surface of the mount 30 . In this case, the fastening force of the nut 26 is more likely to act on the pressing portion 42, and the outer flange 23A of the frame 13A is fixed more firmly. In addition, since the gap between the base portion 41 and the upper surface of the mount 30 is increased, it becomes easier to insert the outer brim 23B of the frame 13B. In the example shown in FIG. 6, a spring washer 47 is arranged between the nut 26 and the base 41 .

FIG. 8 is a cross-sectional view of a photovoltaic power generation device 10Y that is another example of the embodiment. FIG. 9 is a perspective view of the pressing metal fitting 40Y and the supporting metal fitting 50 that constitute the photovoltaic power generation device 10Y. A photovoltaic power generation device 10Y illustrated in FIG. 8 differs from the photovoltaic power generation device 10 in that a supporting metal fitting 50 is provided below the pressing metal fitting 40Y. The support metal fitting 50 is a metal fitting that is arranged on the pedestal 30 between the frames 13A and 13B and supports the pressing metal fitting 40Y. As shown in FIG. 9, in the photovoltaic power generation device 10Y, since the pressing metal fitting 40Y is supported by the supporting metal fitting 50, the pressing metal fitting 40Y is not formed with legs.

The support fitting 50 has a flat bottom portion 51 arranged on the upper surface of the pedestal 30 and wall portions 52 and 53 erected at the ends of the bottom portion 51 . An insertion hole 54 for passing the bolt 25 is formed in the bottom portion 51 . The wall portions 52 and 53 are bent outwardly of the metal fittings at their upper portions to have a substantially L-shaped cross section, and are in contact with the lower surface of the base portion 41 to support the pressing metal fitting 40Y. The pressing portion 42 presses the outer collar 23A of the frame 13A while the pressing metal fitting 40Y is supported by the walls 52 and 53. As shown in FIG.

The bottom portion 51 has a substantially rectangular shape in a plan view, and the wall portions 52 and 53 are formed along two opposite sides of the bottom portion 51 . The support fittings 50 are provided at intervals that do not interfere with the outer collars 23A and 23B. That is, the vertical length of the bottom portion 51 is shorter than the interval between the outer flanges 23A and 23B. In this case, a gap is formed between the support metal fitting 50 and the outer flanges 23A and 23B, and problems such as the pressing metal fitting 40Y not coming into contact with the frame 13B can be prevented. The support bracket 50 may be arranged such that the walls 52 and 53 are aligned in the eaves ridge direction as shown in FIGS. , 53 may be arranged in the girder direction. In the example shown in FIG. 8, the walls 52 and 53 are formed with the same height. In this case, the base 41 is supported substantially parallel to the upper surface of the pedestal 30 .

When the walls 52 and 53 are arranged side by side in the eaves ridge direction, the height of the wall 53 provided at the ridge-side end of the support fitting 50 is higher than the height of the wall 52 provided at the eaves-side end. It can be expensive. When such a support metal fitting 50 is used, the base portion 41 of the pressing metal fitting 40Y is inclined such that the ridge side end portion of the base portion 41 is positioned above the eaves side end portion. In this case, similarly to the embodiment illustrated in FIG. 6, the fastening force of the nut 26 is more likely to act on the pressing portion 42, and the outer flange 23A of the frame 13A is fixed more firmly. In addition, since the gap between the base portion 41 and the upper surface of the mount 30 is increased, it becomes easier to insert the outer brim 23B of the frame 13B. Furthermore, the solar cell module 13B can be easily removed, and maintainability is improved.

In the above-described embodiment, the short frame 30 shorter than the length of the solar cell module 11 in the eaves ridge direction is used, but a long frame may be used instead of the frame 30 . The elongated frame is longer than, for example, two solar cell modules 11 in the eaves ridge direction, and is arranged along the eaves ridge direction of the roof. Further, instead of the pedestal 30, a pedestal having an approximately U-shaped cross-section including an upper surface portion, a side surface portion, and a lower surface portion and having no guide rail portion for bolts may be used.

10, 10X, 10Y solar power generation device 11, 11A, 11B solar cell module 12, 12A, 12B solar cell panel 13, 13A, 13B frame 20, 20A, 20B main body 21 hook 22 inner groove, 23, 23A, 23B Outer collar 25 Bolt 26 Nut 30 Base 31 Guide rail portion 40, 40X, 40Y Pressing fitting 41 Base 42 Pressing portion 43, 54 Insertion hole 44, 45 Protrusion 46, 46X leg, 47 spring washer, 50 support fitting, 51 bottom, 52, 53 wall, 100 roof, 101 roof material, 102 sheathing board, 103 rubber sheet, 104 spacer, 105 screw

Claims (6)

a first solar cell module including a first frame having a first outer flange;
a second solar cell module including a second frame having a second outer collar formed thereon and arranged adjacent to the first solar cell module;
a frame on which the first frame and the second frame are placed so as to hold the bolt in a state in which the shaft portion is erected, and to sandwich the bolt;
a presser fitting attached across the first frame and the second frame and fixed to the mount using the bolt;
with
The presser fitting is
The second outer flange of the second frame is fixed to the bolt with a gap between it and the pedestal so that the second outer flange can be inserted, and the second outer flange is inserted into the gap. a base that covers the outer collar and contacts the side surface of the second frame;
a pressing portion extending from an end portion of the base portion and pressing the first outer brim of the first frame;
a leg portion extending from the base portion and abutting against the pedestal;
including
The photovoltaic power generation device , wherein the legs are formed to be longer on the second frame side than on the first frame side . a first solar cell module including a first frame having a first outer flange;
a second solar cell module including a second frame having a second outer collar formed thereon and arranged adjacent to the first solar cell module;
a frame on which the first frame and the second frame are placed so as to hold the bolt in a state in which the shaft portion is erected, and to sandwich the bolt;
a presser fitting attached across the first frame and the second frame and fixed to the mount using the bolt;
with
The presser fitting is
The second outer flange of the second frame is fixed to the bolt with a gap between it and the pedestal so that the second outer flange can be inserted, and the second outer flange is inserted into the gap. a base that covers the outer collar and contacts the side surface of the second frame;
a pressing portion extending from an end portion of the base portion and pressing the first outer brim of the first frame;
including
further comprising a support metal fitting disposed on the pedestal between the first frame and the second frame to support the pressing metal fitting;
The support metal fitting is arranged on the base and has a bottom portion formed with an insertion hole for the bolt to pass through, and two wall portions erected on the bottom portion and opposed to each other with the bolt interposed therebetween, The photovoltaic power generation device , wherein the two walls support a lower portion of the base of the presser fitting . the two wall portions of the support fitting are arranged apart from the pressing portion of the pressing fitting;
The photovoltaic power generation device according to claim 2, wherein the pressing metal fitting is arranged such that the base covers the two wall portions and the bottom portion of the supporting metal fitting. The photovoltaic power generation device according to claim 2 or 3, wherein the pressing portion of the pressing metal fitting is arranged so as to face side portions of the two wall portions of the supporting metal fitting. The solar power generation device according to any one of claims 1 to 4 , wherein the base portion and the pressing portion are formed with protrusions that bite into the first frame or the second frame, respectively . The photovoltaic power generation device according to any one of claims 1 to 5 , wherein the mount includes a guide rail portion formed along the eaves direction of the roof and slidably holding the head of the bolt. .

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