JP2020186585A - Roof structure and solar cell module - Google Patents

Abstract

To provide a roof structure with safety higher than previous ones, of which a solar cell module is hard to be deformed.SOLUTION: A plurality of solar cell modules integrated with building material are aligned side by side in an eaves ridge direction to a roof board, the solar cell modules having a solar cell panel and a reinforcement part, wherein the reinforcement part is made of metal and arranged on a rear surface side of the solar cell panel to cover the most part of the rear surface of the solar cell panel. The reinforcement part supports the solar cell panel oblique in a predetermined angle to the roof board, and the reinforcement part has an installation wall part installed on the roof board, and two side wall parts bending and extending from the installation wall part toward the solar cell panel. The solar cell module is provided with a surrounded space surrounded with the rear surface of the solar cell panel, the installation wall part, and the two side wall parts to configure the surrounded space to open in the eaves ridge direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a roof structure in which a solar cell module integrated with building materials is attached to a field board.

Conventionally, a solar cell module integrated with a building material having a function as a building material (roof tile) in addition to the function as a solar cell has been known (for example, Patent Document 1).
Since this solar cell module is installed directly on a fixed structure such as a field board without using a roof tile, it has an appearance integrated with other roof tiles and is fixed to the roof tile. Higher design than battery modules.

JP-A-2017-218866

However, since the solar cell module integrated with building materials is directly fixed to the field board or the like without using roof tiles, if the solar cell panel ignites due to some trouble, the fire spreads from the solar cell module side to the fixed structure side. there is a possibility.
Further, since the solar cell module integrated with the building material is used as a building material (roof tile), it requires rigidity as much as it is used as a building material as compared with a normal solar cell module fixed to the roof tile.

Therefore, an object of the present invention is to provide a roof structure that is safer than the conventional one and the solar cell module is not easily deformed. Another object of the present invention is to provide a solar cell module which is safer and less likely to be deformed than the conventional one.

One aspect of the present invention for solving the above-mentioned solution is a roof structure in which a plurality of solar cell modules integrated with building materials are arranged side by side in the direction of the eaves with respect to the field board. It has a solar cell panel and a reinforcing portion, and the reinforcing portion is made of metal and is provided on the back surface side of the solar cell panel to cover most of the back surface of the solar cell panel. Supports the solar cell panel so as to incline at a predetermined angle with respect to the field plate, and the reinforcing portion includes a mounting wall portion mounted on the field plate and a mounting wall portion described above. It has two side wall portions that are bent toward the solar cell panel, and the solar cell module is surrounded by the back surface of the solar cell panel, the above-mentioned wall portion, and the two side wall portions. The surrounding space is provided with a space, and the surrounding space is a roof structure that is open in the direction of the eaves.

The term "most of the back surface of the solar cell panel" as used herein means a portion of 60% or more of the back surface.

According to this aspect, most of the back surface of the solar cell panel is covered with a metal reinforcing part, so even if the solar cell panel ignites, the fire is blocked by the reinforcing part and from the solar cell panel side. It is difficult for the fire to spread to the field board side. Further, according to this aspect, since most of the back surface of the solar cell panel is covered and reinforced by a metal reinforcing portion, the solar cell panel is not easily deformed.
According to this aspect, since the reinforcing portion also functions as a stand for tilting the solar cell panel at a predetermined angle, the installation area of the solar cell panel per unit area of the field board can be reduced. In addition, a stepped roof with excellent design can be constructed.
According to this aspect, since the surrounding space is open toward the eaves, the surrounding space can function as a flow path through which rainwater or the like passes.

A preferred aspect is to have a gutter member having a flow path in the eaves ridge direction, the gutter member being separate from the gutter member and fixed to the side surface of the gutter in the gutter direction by a gutter fastening element. It is that you are.

According to this aspect, the gutter member is fixed to the side surface of the reinforcing portion in the girder direction. That is, since the gutter fastening element is provided in the direction intersecting the direction of receiving the blowing force in the case of strong wind and the gutter member is fixed to the reinforcing portion, the gutter member is difficult to come off from the reinforcing portion.

A more preferable aspect is that a plurality of building material-integrated solar cell modules are arranged side by side in the gutter direction with respect to the field board, and the gutter members are adjacent to each other in the gutter direction when the solar cell panel is viewed in a plan view. It is arranged at the boundary of the solar cell module.

According to this aspect, since the gutter member straddles between the solar cell modules adjacent in the gutter direction, even if water or the like enters through the gap between the solar cell modules adjacent in the gutter direction, the gutter member can receive it. ..

A more preferable aspect is that the gutter fastening element is a temporary fastening element, has a shaft portion, and the shaft portion extends in the girder direction.

The "temporary fastening element" here is a kind of fastening element, and refers to a fastening element that can be removed without breaking in principle, and refers to, for example, a combination of screws and bolts and nuts.

According to this aspect, the gutter member is fixed to the reinforcing portion by a temporary fastening element, and the gutter member can be attached to and detached from the reinforcing portion. Therefore, it is easy to replace the gutter member.

A preferred aspect is that the solar cell module is juxtaposed with the roof tile member in the girder direction with respect to the field plate, has a drainer member, and the drainer member is attached to the solar cell module adjacent to the roof tile member. The movement of water from the tile member side to the back surface side of the solar cell panel is restricted, and the draining member is a separate body from the reinforcing portion, and the reinforcing portion is provided by a draining fastening element. It is fixed to the side surface in the column direction of.

According to this aspect, the drainer member is fixed to the side surface of the reinforcing portion in the girder direction. That is, since the draining fastening element is provided in the direction intersecting the direction of receiving the blowing force due to strong wind or the like and the draining member is fixed to the reinforcing portion, the draining member is unlikely to come off from the reinforcing portion.

A more preferable aspect is that the solar cell module is thicker than the roof tile member, and the drainer member is partially interposed between the roof tile member and the field plate.

According to this aspect, since the movement of water or the like from the tile member side to the solar cell module side can be blocked by the draining member, it is possible to prevent water or the like from entering from the tile member side to the back side of the solar cell module.

A preferred aspect is that the reinforcing portion covers 90% or more of the back surface of the solar cell panel.

According to this aspect, since the reinforcing part covers 90% or more of the solar cell panel, even if the solar cell panel ignites, the boundary between the solar cell panel and the field board can be cut off, and the fire spreads from the solar cell panel to the field board. Can be prevented more.

A preferred aspect is that the solar cell panel has a terminal box on the back surface, and the terminal box is arranged in the surrounding space.

According to this aspect, since the terminal box is surrounded by the back surface of the solar cell panel, the mounting wall portion, and the two side wall portions, even if the terminal box ignites, it is blocked by the reinforcing portion and goes to the field board side. Can prevent the spread of fire.

In a preferred aspect, the reinforcing portion further has an overhanging portion protruding from the wall portion described above to the ridge side, and the other of the solar cell modules adjacent to the eaves building direction is in the surrounding space of one solar cell module. The overhanging part of the solar cell module of is inserted.

According to this aspect, since the extension portion is inserted in the surrounding space, the positioning of the solar cell module in the eaves direction is easy.

A more preferable aspect is that the distance between the two side wall portions widens from the ridge side to the eaves side.

According to this aspect, the stretched portion can be easily inserted into the surrounding space.

A preferred aspect is that the reinforcing portion has a space formed between the reinforcing portion and the back surface of the solar cell panel.

According to this aspect, since a space is formed between the back surface of the solar cell panel and the reinforcing portion, the back surface side of the solar cell panel is easily exposed to the outside air and does not easily reach a high temperature.

A preferred aspect is that the solar cell module further comprises an eaves-side frame that protects the eaves-side end of the solar cell panel and a ridge-side frame that protects the ridge-side end of the solar cell panel. Of the solar cell modules adjacent to the ridge, the ridge-side frame of the solar cell module on the eaves side constitutes a recess that opens toward the ridge side together with the reinforcing portion, and the eaves-side frame of the solar cell module on the ridge side. Has a frame extension portion extending toward the eaves side, and in the solar cell module adjacent to the eaves building direction, the frame extension portion of the solar cell module on the building side is the solar cell module on the eaves side. It is inserted in the recess.

According to this aspect, the frame extension of the solar cell module on the ridge side is inserted into the recess of the solar cell module on the eaves side, and the solar cell module on the ridge side is fixed to the solar cell module on the eaves side. Even if a blowing force is applied due to strong wind or the like, the solar cell module on the ridge side is locked by the solar cell module on the eaves side, and the solar cell module on the ridge side is hard to come off.

One aspect of the present invention is a solar cell module integrated with a building material that can be attached to a field board, which has a solar cell panel and a reinforcing portion, and the reinforcing portion is made of metal and described above. It is provided on the back surface side of the solar cell panel and covers most of the back surface of the solar cell panel, and the reinforcing portion is from the mounting wall portion mounted on the field plate and the mounting wall portion described above. It has two side wall portions that bend and extend toward the solar cell panel, and when attached to the field plate, the reinforcing portion tilts the solar cell panel at a predetermined angle with respect to the field plate. It is a solar cell module that is supported in such a manner and is surrounded by the back surface of the solar cell panel, the above-mentioned wall portion, and the two side wall portions to form an open surrounding space in the direction of the eaves.

According to this aspect, even if the solar cell panel ignites, the fire is blocked by the reinforcing portion, and it is difficult for the fire to spread from the solar cell panel side to the field board side. Further, according to this aspect, the solar cell panel is not easily deformed.
According to this aspect, the installation area of the solar cell panel per unit area of the field board can be reduced when it is attached to the field board. According to this aspect, the surrounding space can function as a flow path through which rainwater or the like passes.

According to the present invention, the safety is higher than the conventional one, and the solar cell module is less likely to be deformed.

It is a top view of the roof structure of 1st Embodiment of this invention. It is a perspective view of a part of the roof structure of FIG. FIG. 5 is a cross-sectional view taken along the line AA of a part of the roof structure of FIG. It is explanatory drawing of the main part of the roof structure of FIG. 1, (a) is an exploded perspective view of the circumference of the solar cell module adjacent to the solar cell module in the girder direction, and (b) is the tile member adjacent to each other in the girder direction. It is an exploded perspective view around the solar cell module. It is a front view of the solar cell module of FIG. It is an exploded perspective view of the solar cell module of FIG. It is a partially broken perspective view of the solar cell module of FIG. 4 seen from the back surface side. It is explanatory drawing of the solar cell module of FIG. 5, (a) is the cross-sectional view of BB when the mounting surface of the field plate is horizontal, and (b) is the mounting surface of the field plate horizontal. It is a CC sectional view of the time. It is a perspective view of the solar cell panel of FIG. 6 seen from the back side. It is an enlarged perspective view of the frame member on the eaves side of FIG. It is a perspective view which saw the eaves side frame member of FIG. 10 from the direction different from FIG. It is an enlarged perspective view of the ridge side frame member of FIG. It is a perspective view which saw the reinforcing member of FIG. 6 from the direction different from FIG. It is a perspective view of the gutter member of FIG. It is a perspective view of the draining member of FIG. It is a perspective view of the cover member of FIG. It is explanatory drawing of the gutter member of FIG. 1, and the solar cell module is shown by the virtual line. It is explanatory drawing of the draining member of FIG. 1, and shows a solar cell module and a tile member by a virtual line. It is a perspective view of the reinforcing member of another embodiment of this invention. It is an exploded perspective view of the main part of another embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail.

In the roof structure 1 of the first embodiment of the present invention, as shown in FIGS. 1 and 2, a plurality of solar cell modules 2, a tile member 101, and a cover member 102 are formed in a plane shape with respect to the roof field plate 100. It was laid.

The solar cell module 2 is a building material integrated solar cell module having both a function as a building material and a function as a solar cell. As shown in FIG. 6, the solar cell panel 3 and the frame members 5 and 6 are reinforced. It includes a member 7.
As shown in FIG. 4, the solar cell module 2 selectively selects the gutter member 8 and the draining member 10 on the side surface of the reinforcing member 7 in the width direction (girder direction X) by the gutter fastening element 11 or the draining fastening element 12. It can be installed.

As shown in FIG. 5, the solar cell panel 3 is a plate-shaped panel having a light receiving surface 20 on its surface.
The solar cell panel 3 contains a plurality of solar cells 21 that convert light energy into electrical energy, and these solar cells 21 are electrically connected in series and / or in parallel.
As shown in FIG. 9, the solar cell panel 3 is provided with a terminal box 22 on the back surface side, and a wiring member extends from the terminal box 22.
The terminal box 22 is a relay box from the internal wiring extending from the solar cell 21 to the wiring member, and is a member for extracting electricity to the wiring member side.

As shown in FIG. 10, the eaves-side frame member 5 is a frame that extends in the girder direction X (width direction) and protects the eaves-side end of the solar cell panel 3.
The eaves side frame member 5 includes a light receiving side covering portion 30, an end surface covering portion 31, a back surface side covering portion 32, a connecting wall portion 33, an engaging wall portion 35, and a mounting portion 36, and has a holding recess. 37 and an engaging recess 38 are formed.
The light receiving side covering portion 30 is a portion that covers the light receiving surface 20 side of the solar cell panel 3.
The end face covering portion 31 is a portion that covers the eaves side end surface of the solar cell panel 3, and is a portion that connects the light receiving side covering portion 30 and the back surface side covering portion 32.
The back surface side covering portion 32 is a portion that covers the back surface side of the solar cell panel 3, and is a portion that sandwiches the solar cell panel 3 in the thickness direction together with the light receiving side covering portion 30.
The connecting wall portion 33 is a connecting portion that connects the back surface side covering portion 32 and the engaging wall portion 35, and is a standing wall portion that rises from the back surface side covering portion 32.
The engaging wall portion 35 is an engaging piece that can be engaged with the ridge side frame member 6, faces the back surface side covering portion 32 with a space open, and faces the solar cell panel 3 side from the end portion of the connecting wall portion 33. It is a frame extension portion extending toward the frame.
The mounting portion 36 is a plate-shaped portion to which the reinforcing member 7 is mounted, and is a portion continuous with the back surface side covering portion 32 and in which a part or all of the connecting wall portion 33 is cut up as shown in FIG. That is, the connection wall portion 33 is provided with an opening by the mounting portion 36.

The holding recess 37 is a holding portion that holds the eaves-side end portion of the solar cell panel 3, and is a concave groove having the covering portions 30 to 32 as the inner wall as shown in FIG.
The holding recess 37 extends in the girder direction X, and its internal space opens toward the ridge side.
The engaging recess 38 is an engaging portion into which a part of the ridge side frame member 6 can be inserted, and as shown in FIG. 10, the back surface side covering portion 32, the connecting wall portion 33, and the engaging wall portion 35 are combined with the inner wall. It is a concave groove.
The engaging recess 38 extends in the girder direction X, and the internal space opens toward the eaves side. That is, the internal space of the engaging recess 38 is open toward the side opposite to the internal space of the holding recess 37 in the eaves building direction Y.

As shown in FIG. 12, the ridge-side frame member 6 is a frame that extends in the girder direction X and protects the ridge-side end of the solar cell panel 3.
The ridge side frame member 6 includes a light receiving side covering portion 50, an end surface covering portion 51, a back surface side covering portion 52, a connecting wall portion 53, and a mounting wall portion 55, and a holding recess 57 is formed. ..

The light receiving side covering portion 50 is a portion that covers the light receiving surface 20 side of the solar cell panel 3.
The end face covering portion 51 is a portion that covers the eaves side end surface of the solar cell panel 3, and is a portion that connects the light receiving side covering portion 50 and the back surface side covering portion 52.
The back surface side covering portion 52 is a portion that covers the back surface side of the solar cell panel 3, and is a portion that sandwiches the solar cell panel 3 in the thickness direction together with the light receiving side covering portion 50.
The connection wall portion 53 is a connection portion that connects the back surface side cover portion 52 and the mounting wall portion 55, and is a standing wall portion that rises from the back surface side cover portion 52.
The mounting wall portion 55 is a portion to which the reinforcing member 7 is mounted, has a step with respect to the back surface side covering portion 52, and is continuous in a stepped manner via the back surface side covering portion 52 and the connecting wall portion 53.
The holding recess 57 is a holding portion that holds the ridge-side end portion of the solar cell panel 3, and is a recess groove having the covering portions 50 to 52 as the inner wall.
The holding recess 57 extends in the girder direction X, and its internal space opens toward the eaves side.

The reinforcing member 7 is made of metal and is a member for trimming the solar cell panel 3 and the field plate 100, and is formed by bending a single steel plate.
As shown in FIGS. 6 and 13, the reinforcing member 7 includes a mounting wall portion 70, a panel side wall portion 71, side wall portions 72a and 72b, an overhanging portion 73, mounting wall portions 75a and 75b, and a closing wall. It has a part 76.

The mounting wall portion 70 constitutes the bottom portion of the reinforcing member 7, and is a wall portion mounted on the field plate 100.
The panel side wall portion 71 is a wall portion that has a step with respect to the mounting wall portion 70 and is inclined at a predetermined angle with respect to the mounting wall portion 70.
The inclination angle θ (inclination angle with respect to the mounting wall portion 70) of the panel side wall portion 71 shown in FIG. 8B can be appropriately designed in consideration of the inclination angle of the field plate 100 and the like, but is 3 degrees or more and 30 degrees or less. It is preferable to have. That is, the inclination angle of the solar cell panel 3 with respect to the field plate 100 is preferably 3 degrees or more and 30 degrees or less.
As shown in FIG. 6, the width of the panel side wall portion 71 is different in the eaves building direction Y, and the width increases from the eaves side to the ridge side.
The side wall portions 72a and 72b are connection wall portions that connect the mounting wall portion 70 and the panel side wall portion 71.
The overhanging portion 73 is an overhanging piece that is continuous with the mounting wall portion 70 and overhangs the side wall portions 72a and 72b toward the eaves.
The mounting wall portions 75a and 75b are provided at the ends in the girder direction X, and are portions where the gutter member 8 and the draining member 10 can be selectively mounted via the fastening elements 11 and 12.
The closed wall portion 76 is a bent portion that is bent downward from the panel side wall portion 71, and is a wall portion that closes the opening of the connecting wall portion 33.

Here, the positional relationship of each part of the solar cell module 2 will be described.

As shown in FIG. 8, the solar cell panel 3 has an eaves-side end inserted into the holding recess 37 of the eaves-side frame member 5, and a ridge-side end inserted into the holding recess 57 of the ridge-side frame member 6. There is. The end face of the solar cell panel 3 in the girder direction X is exposed to the outside.

As shown in FIG. 6, the solar cell panel 3 has a reinforcing member 7 arranged on the back surface side, and the reinforcing member 7 covers most of the back surface side.
The reinforcing member 7 preferably covers 90% or more of the back surface of the solar cell panel 3.
In the reinforcing member 7, the eaves-side end of the mounting wall portion 70 is attached to the mounting portion 36 of the eaves-side frame member 5, and the ridge-side end of the mounting wall portion 70 is the mounting wall of the ridge-side frame member 6. It is attached to the portion 55.
As shown in FIG. 8B, the solar cell module 2 has a space between the panel side wall portion 71 of the reinforcing member 7 and the back surface side covering portion 52 of the ridge side frame member 6. In the solar cell module 2, the fixing recess 74 is formed by the panel side wall portion 71 of the reinforcing member 7, the back surface side covering portion 52 of the ridge side frame member 6, and the connecting wall portion 53 of the ridge side frame member 6.

As shown in FIG. 5, in the solar cell module 2, when viewed in a plan view, the reinforcing member 7 projects toward the ridge side of the ridge side frame member 6 in the eaves building direction Y, and an overhanging area 78 is formed. ..

As shown in FIG. 7, the solar cell module 2 is surrounded by the back surface of the solar cell panel 3, the mounting wall portion 70, and the side wall portions 72a and 72b, and an enclosed space 77 open in the eaves building direction Y is formed. , The terminal box 22 is arranged in the surrounding space 77.
The surrounding space 77 is a space extending in the eaves direction Y, preferably extending in a range of 0.5 times or more, preferably 0.8 times or more, the length of the solar cell panel 3 in the eaves direction Y. It is more preferable that it extends in a range.

The gutter member 8 is a member provided at the boundary portion of the solar cell panel 3 adjacent to the gutter direction X and allowing water to flow toward the eaves side.
As shown in FIG. 14, the gutter member 8 is a “U” -shaped member whose cross-sectional shape is open upward, and the bottom surface portion 80 and the side surface portions 81a rising from both ends in the width direction of the bottom surface portion 80. , 81b, and a gutter-side flow path 82 having a bottom surface portion 80 and side surface portions 81a and 81b as inner walls is formed.
At least one side surface portion 81 of the side surface portions 81a and 81b includes a mounting portion 83.
The mounting portion 83 is a hole or notch for inserting the gutter fastening element 11 to attach the gutter member 8 to the reinforcing member 7, and penetrates in the member thickness direction.

The draining member 10 is a member that blocks the movement of water from the tile member 101 side to the lower surface side of the solar cell panel 3.
As shown in FIG. 15, the draining member 10 includes a panel side wall portion 90, a mounting wall portion 91, a blocking wall portion 92, and a mounting wall portion 93.
The mounting wall portion 91 is a portion on which the tile member 101 is mounted, has a step with the panel side wall portion 90, and is continuous in a stepped manner via the blocking wall portion 92.
The blocking wall portion 92 is a standing wall portion that stands up with respect to the mounting wall portion 91, and the width gradually narrows from the eaves side to the ridge side. That is, the panel side wall portion 90 is inclined at a predetermined angle with respect to the mounting wall portion 91.
The mounting wall portion 93 is a standing wall portion that rises from the panel side wall portion 90 on the side opposite to the field plate 100, and includes a mounting portion 95 that is attached to the reinforcing member 7 via the draining fastening element 12.
The mounting portion 95 is a hole or notch for inserting the draining fastening element 12 and mounting the draining member 10 to the reinforcing member 7, and penetrates in the member thickness direction.

As shown in FIG. 4A, the gutter fastening element 11 is a member for attaching the gutter member 8 to the reinforcing member 7, and specifically, is a temporary fastening element having a head and a shaft portion. , Combination of screws and bolts and nuts.

As shown in FIG. 4B, the draining fastening element 12 is a member that attaches the draining member 10 to the reinforcing member 7, and specifically, is a temporary fastening element having a head and a shaft portion. , Combination of screws and bolts and nuts.

Specifically, the roof tile member 101 is a slate roof tile, which is thinner than the thickness of the solar cell module 2.

The cover member 102 is a member that covers the boundary portion between the roof tile member 101 and the solar cell module 2, has a horizontally long rectangular shape as shown in FIG. 16, and has the same size as the roof tile member 101.

Subsequently, the positional relationship of each part of the roof structure 1 of the present embodiment will be described.

In the roof structure 1, as shown in FIG. 1, a solar cell module 2 is laid in a plane together with a tile member 101 on a roof field plate 100, and a cover member 102 is provided at a boundary portion between the tile member 101 and the solar cell module 2. Is arranged.
The eaves side of the cover member 102 covers the overhanging area 78 of the solar cell module 2, and the ridge side is covered with the tile member 101.
As shown in FIG. 3, the engaging wall portion 35 of the eaves side frame member 5 of the ridge side solar cell module 2b is inserted into the fixed recess 74 of the solar cell module 2a on the eaves side.
From another point of view, a part of the ridge-side frame member 6 of the eaves-side solar cell module 2a is inserted into the engaging recess 38 of the ridge-side solar cell module 2b and fitted.
In the solar cell module 2 (2a, 2b) adjacent to the eaves building direction Y shown in FIG. 3, the overhanging portion 73 of the solar cell module 2b on the building side is inserted into the surrounding space 77 of the solar cell module 2a on the eaves side. The surrounding space 77 communicates in the direction Y of the eaves building.
The solar cell panel 3 is supported by the reinforcing member 7 and is inclined at a predetermined angle with respect to the field plate 100.

The overhanging area 78 of the solar cell module 2a on the eaves side is covered with the solar cell module 2b on the ridge side. That is, the reinforcing member 7 of the solar cell module 2a on the eaves side has a portion overlapping with the reinforcing member 7 of the solar cell module 2b on the ridge side in the thickness direction, and the surrounding spaces 77 communicate with each other in the eaves building direction Y.

In the solar cell modules 2 (2a, 2c) adjacent to the girder direction X, the gutter member 8 is attached to one of the solar cell modules 2a as shown in FIG.
Specifically, the gutter member 8 is attached to the mounting wall portion 75a or the mounting wall portion 75b of the reinforcing member 7 of one of the solar cell modules 2a by the gutter fastening element 11.
The shaft portion of the gutter fastening element 11 is fastened in the gutter direction X through the mounting portion 83.
The gutter member 8 is arranged so as to straddle the boundary portion of the solar cell modules 2a and 2c adjacent to the girder direction X when the solar cell panel 3 is viewed in a plan view.

As shown in FIG. 18, a draining member 10 is attached to the solar cell module 2c adjacent to the tile member 101 in the girder direction X.
Specifically, the draining member 10 is attached to the mounting wall portion 75a or the mounting wall portion 75b of the reinforcing member 7 of the solar cell module 2c by the draining fastening element 12.
The shaft portion of the draining fastening element 12 is fastened in the girder direction X through the mounting portion 95.
As for the draining member 10, the tile member 101 is placed on the mounting wall portion 91.

According to the roof structure 1 of the present embodiment, most of the back surface of the solar cell panel 3 is covered with the metal reinforcing member 7, so that even if the solar cell panel 3 ignites, the fire will be the reinforcing member 7. It is difficult for the fire to spread from the solar cell panel 3 side to the field plate 100 side. Further, since the solar cell panel 3 overlaps with the reinforcing member 7 in the thickness direction, it is difficult to be deformed.
According to the roof structure 1 of the present embodiment, since the reinforcing member 7 also functions as a stand for inclining the solar cell panel 3 at a predetermined angle, the installation area of the solar cell panel 3 per unit area of the field plate 100 is reduced. it can.

According to the roof structure 1 of the present embodiment, as shown in FIG. 4, the gutter member 8 and the draining member 10 are provided by the fastening elements 11 and 12 to the mounting wall portions 75a and 75b forming the side surfaces of the reinforcing member 7 in the girder direction X. Is fixed. That is, even if a blowing force acts on the solar cell module 2 due to a strong wind or the like, the gutter member 8 and the draining member 10 are fixed by the fastening elements 11 and 12 in the direction intersecting the blowing direction, so that the reinforcing member 7 is used. The gutter member 8 and the drainer member 10 are hard to come off.
Further, the gutter member 8 and the draining member 10 are fixed to the mounting wall portions 75a and 75b of the reinforcing member 7 by the temporary fastening elements 11 and 12, and the gutter member is fixed to the mounting wall portions 75a and 75b of the reinforcing member 7. 8 and the drainer member 10 are detachably fixed. Therefore, it is easy to replace the gutter member 8 and the drainer member 10.

According to the roof structure 1 of the present embodiment, the terminal box 22 of the solar cell panel 3 is surrounded by the back surface of the solar cell panel 3, the mounting wall portion 70, and the two side wall portions 72a and 72b. Therefore, even if the terminal box 22 ignites, it is blocked by the reinforcing member 7 and the fire can be prevented from spreading to the field plate 100 side.

According to the roof structure 1 of the present embodiment, since the width of the surrounding space 77 expands from the ridge side to the eaves side, the overhanging portion 73 can be inserted into the surrounding space 77.

According to the roof structure 1 of the present embodiment, since a space is formed between the back surface of the solar cell panel 3 and the reinforcing member 7, the back surface side of the solar cell panel 3 is easily exposed to the outside air and does not easily reach a high temperature.

According to the roof structure 1 of the present embodiment, since the gutter member 8 straddles between the solar cell modules 2a and 2c adjacent to the girder direction X, from the gap between the solar cell modules 2a and 2c adjacent to the gutter direction X. Even if water or the like enters, it can be received by the gutter member 8.

According to the solar cell module 2 of the present embodiment, since the gutter member 8 or the drainer member 10 can be selectively attached to the side surface of the reinforcing member 7, a wide variety of layouts can be taken.

In the above-described embodiment, the solar cell modules 2a and 2b adjacent to the eaves building direction Y are installed in a stepped manner so as to overlap the field plate 100 in the vertical direction, but the present invention is limited to this. It is not something that is done. The solar cell modules 2a and 2b adjacent to the eaves building direction Y may be installed so as not to overlap vertically with respect to the field plate 100.

In the above-described embodiment, the overhanging portion 73 is provided at the eaves-side end portion of the mounting wall portion 70, but the present invention is not limited thereto. As shown in FIG. 19, the overhanging portion 73 may be provided at the ridge-side end portion of the mounting wall portion 70.

In the above-described embodiment, the gutter member 8 or the drainer member 10 is attached to one side surface of the solar cell module 2, but the present invention is not limited to this. As shown in FIG. 20, the gutter member 8 or the drainer member 10 may be attached to both side surfaces of the solar cell module 2.

In the above-described embodiment, the draining member 10 is attached to the reinforcing member 7, but the present invention is not limited to this. The drainer member 10 may be fixed to the field plate 100. Similarly, in the above-described embodiment, the gutter member 8 is attached to the reinforcing member 7, but the present invention is not limited to this. The gutter member 8 may be fixed to the field plate 100.

In the above-described embodiment, the solar cell modules 2 are arranged on the field plate 100 so as to be aligned in the eaves building direction Y and the girder direction X, but the present invention is not limited thereto.
Each solar cell module 2 may be displaced in the column direction X.

As long as the above-described embodiment is included in the technical scope of the present invention, each component can be freely replaced or added between the respective embodiments.

1 Roof structure 2,2a-2c Solar cell module 3 Solar cell panel 5 Eaves side frame member (eaves side frame)
6 Building side frame member (building side frame)
7 Reinforcing member (reinforcing part)
8 Gutter member 10 Drainer member 11 Gutter fastening element 12 Draining fastening element 22 Terminal box 35 Engagement wall part (frame extension part)
38 Engagement recess 70 Mounting wall part 72a, 72b Side wall part 73 Overhang part 74 Fixed recess 77 Surrounding space 100 Field board 101 Tile member

Claims (13)

It is a roof structure in which multiple solar cell modules integrated with building materials are arranged side by side in the direction of the eaves with respect to the field board.
The solar cell module has a solar cell panel and a reinforcing portion.
The reinforcing portion is made of metal, is provided on the back surface side of the solar cell panel, and covers most of the back surface side of the solar cell panel.
The reinforcing portion supports the solar cell panel so as to incline at a predetermined angle with respect to the field plate.
The reinforcing portion has a mounting wall portion mounted on the field board and two side wall portions bent and extended from the above-mentioned mounting wall portion toward the solar cell panel.
The solar cell module includes a surrounding space surrounded by the back surface of the solar cell panel, the above-mentioned mounting wall portion, and the two side wall portions.
The surrounding space is a roof structure that is open in the direction of the eaves. It has a gutter member with a flow path in the direction of the eaves,
The roof structure according to claim 1, wherein the gutter member is separate from the reinforcing portion and is fixed to a side surface of the reinforcing portion in the gutter direction by a gutter fastening element. A plurality of building material integrated solar cell modules are arranged side by side in the girder direction with respect to the field board.
The roof structure according to claim 2, wherein the gutter member is arranged at a boundary portion of a solar cell module adjacent to each other in the girder direction when the solar cell panel is viewed in a plan view. The gutter fastening element is a temporary fastening element, has a shaft portion, and has a shaft portion.
The roof structure according to claim 2 or 3, wherein the shaft portion extends in the girder direction. The solar cell module is juxtaposed with the tile member in the girder direction with respect to the field plate.
Has a drainer member
The drainer member is attached to a solar cell module adjacent to the roof tile member, and regulates the movement of water from the roof tile member side to the back surface side of the solar cell panel.
The roof structure according to any one of claims 1 to 4, wherein the draining member is separate from the reinforcing portion and is fixed to a side surface of the reinforcing portion in the girder direction by a draining fastening element. The solar cell module is thicker than the tile member,
The roof structure according to claim 5, wherein the draining member is partially interposed between the tile member and the field board. The roof structure according to any one of claims 1 to 6, wherein the reinforcing portion covers 90% or more of the back surface of the solar cell panel. The solar cell panel has a terminal box on the back surface and has a terminal box.
The roof structure according to any one of claims 1 to 7, wherein the terminal box is arranged in the surrounding space. The reinforcing portion further has an overhanging portion protruding from the above-mentioned mounting wall portion to the ridge side.
The roof according to any one of claims 1 to 8, wherein the overhanging portion of the other solar cell module is inserted into the surrounding space of one solar cell module among the solar cell modules adjacent to the eaves building direction. Construction. The roof structure according to claim 9, wherein the distance between the two side wall portions extends from the ridge side to the eaves side. The roof structure according to any one of claims 1 to 10, wherein a space is formed between the reinforcing portion and the back surface of the solar cell panel. The solar cell module further includes an eaves-side frame that protects the eaves-side end of the solar cell panel, and a ridge-side frame that protects the ridge-side end of the solar cell panel.
Of the solar cell modules adjacent to the eaves building direction, the ridge side frame of the solar cell module on the eaves side constitutes a recess that opens toward the ridge side together with the reinforcing portion.
The eaves side frame of the solar cell module on the ridge side has a frame extension portion extending toward the eaves side.
The solar cell module adjacent to the eaves building direction is any one of claims 1 to 11, wherein the frame extension portion of the solar cell module on the ridge side is inserted into the recess of the solar cell module on the eaves side. The roof structure described in the section. It is a solar cell module with integrated building materials that can be attached to the field board.
It has a solar panel and a reinforcing part,
The reinforcing portion is made of metal, is provided on the back surface side of the solar cell panel, and covers most of the back surface side of the solar cell panel.
The reinforcing portion has a mounting wall portion mounted on the field board and two side wall portions bent and extended from the above-mentioned mounting wall portion toward the solar cell panel.
When attached to the field plate, the reinforcing portion supports the solar cell panel so as to be inclined at a predetermined angle with respect to the field plate, and the back surface of the solar cell panel, the above-mentioned mounting wall portion, A solar cell module surrounded by the two side wall portions to form an open surrounding space in the eaves direction.

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