JP2013077777A - Photovoltaic power generation system and installation method thereof - Google Patents

Abstract

The present invention provides a photovoltaic power generation apparatus and an installation method thereof capable of enhancing fire prevention performance at a butting portion of steel plates laid on a roof surface.
SOLUTION: A plurality of rectangular steel plates 4 are laid on a roof surface 3 of a building, and a metal mount 2 that supports a panel body 10 holding a photovoltaic power generation panel 1 on the steel plate 4 is attached to the building. Fixed to the roof surface 3, the gantry 2 has a vertical rail member 20 that supports and fixes a vertical side of the edge of the panel body 10 along the inclination direction of the roof surface 3, and the steel plate 4 is at least a roof surface. A plurality of pieces are arranged along the left-right direction orthogonal to the inclination direction 3, and the abutting portions 5 of the steel plates 4 adjacent to each other in the left-right direction are straight along the entire length in the inclination direction, and the vertical rails cover the abutting portions 5. The member 20 is arranged and fixed.
[Selection] Figure 4

Description

  The present invention relates to a photovoltaic power generation apparatus installed on a roof of a building and an installation method thereof, and more particularly, a solar that secures fireproof performance while improving the workability of a steel plate that is arranged on a roof surface and fixes a frame of a photovoltaic power generation panel. The present invention relates to a photovoltaic power generation apparatus and an installation method thereof.

  In order to install a solar power generation panel on the roof surface of a building, it is necessary to provide a support structure for supporting and fixing the solar power generation panel to constitute a solar power generation device. Of the solar power generation devices, in a roof-integrated structure, first, a ground plate made of wood is waterproofed, and then a steel plate is laid on the surface. A stand for supporting the photovoltaic power generation panel is installed so as to be buried under the steel plate or under the steel plate. The photovoltaic power generation panel forms a panel body surrounded by a frame body that holds the solar power panel over four circumferences, and the peripheral edge portion of the frame body is placed on a frame and fixed. As a solar power generation device having such a configuration, for example, there is one as described in Patent Document 1.

Japanese Patent Laid-Open No. 10-317603

  As shown in Patent Document 1, the steel plate laid on the roof surface of the building is formed by bending the end portion, and is installed so that the mount is inserted under the steel plate. There was a problem of being bad. Also, no consideration is given to fire prevention.

  This invention is made | formed in view of the said subject, and provides the solar power generation device which can ensure fire prevention performance, aiming at the improvement of the workability in the butt | matching part of the steel plate laid in a roof surface, and its installation method. For the purpose.

In order to solve the above problems, a photovoltaic power generation apparatus according to the present invention is a photovoltaic power generation apparatus in which a photovoltaic power generation panel is fixed to a roof surface of a building.
A steel plate is laid on the roof surface, and a metal mount that supports the panel body holding the photovoltaic power generation panel on the steel plate is provided,
The gantry includes a vertical rail member that supports and fixes a vertical side of the edge of the panel body along the inclination direction of the roof surface,
A plurality of the steel plates are arranged along at least the left-right direction orthogonal to the inclination direction of the roof surface, and the abutting portions of the steel plates adjacent in the left-right direction are made straight over the entire length in the inclination direction, and the abutting portions are The vertical rail member is arranged and fixed so as to cover it.

  Further, in the photovoltaic power generation apparatus according to the present invention, the vertical rail member has a bottom surface portion placed on the steel plate, and a rail portion rising from the bottom surface portion, and the rail portion supports the panel body. The bottom face part is formed wider than the abutting part of the steel plate.

  Furthermore, in the photovoltaic power generation apparatus according to the present invention, a plurality of the steel plates are arranged along the left-right direction and the inclination direction of the roof surface, and the butted portions of the plurality of steel plates along the inclination direction are in the entire length in the inclination direction. It is characterized by being straight.

  Furthermore, the photovoltaic power generation apparatus according to the present invention is characterized in that the butted portion of the steel plate and the vertical rail member are provided along a rafter provided on the back side of the roof surface of the building.

And the installation method of the solar power generation device according to the present invention is made of metal that lays a plurality of rectangular steel plates on the roof surface of a building and supports a panel body that holds the solar power generation panel on the steel plates. In the installation method of the photovoltaic power generation apparatus that provides the gantry,
A plurality of the steel plates are arranged at least in the left-right direction perpendicular to the inclination direction of the roof surface, and the abutting portions of the steel plates adjacent in the left-right direction are straight over the entire length in the inclination direction so as to cover the abutting portions The vertical rail member which comprises the said stand is arrange | positioned and fixed to the vertical rail member, and the vertical side along the inclination direction of the said roof surface among the edge parts of the said panel body is fixed with respect to this vertical rail member.

  According to the photovoltaic power generation apparatus according to the present invention, a plurality of steel plates are arranged along at least the left-right direction orthogonal to the tilt direction of the roof surface, and the butted portions of the steel plates adjacent in the left-right direction extend over the entire length in the tilt direction. Since the vertical rail member is arranged and fixed so as to cover the butt portion, the butt portion of the steel plate is covered with the vertical rail member so that it is not directly exposed, so the fire prevention performance is improved. can do.

  Further, according to the photovoltaic power generation apparatus according to the present invention, the bottom surface portion of the vertical rail member is formed wider than the butt portion of the steel plate, so that the butt portion can be entirely covered, and the fire prevention performance is ensured. Can be secured.

  Furthermore, according to the solar power generation device according to the present invention, the butted portions of the plurality of steel plates along the inclination direction are straight over the entire length in the inclination direction, so that one of the steel plates along the inclination direction is one. The butted portion can be covered with the vertical rail member, and the structure can be simplified.

  Furthermore, according to the photovoltaic power generation apparatus according to the present invention, the butted portion of the steel plate and the vertical rail member are provided along the rafter provided on the back side of the roof surface of the building, so that the vertical rail member becomes the rafter. Since it can fix with respect to it, the fixed intensity | strength of a vertical rail member can be enlarged.

  And according to the installation method of the photovoltaic power generation apparatus according to the present invention, a plurality of steel plates are arranged at least in the left-right direction orthogonal to the inclination direction of the roof surface, and the butted portions of the steel plates adjacent in the left-right direction are inclined. A vertical rail member that constitutes the gantry is arranged and fixed so as to cover the abutting portion, and the vertical side of the edge of the panel body along the inclination direction of the roof surface is fixed to the vertical rail member. By doing so, the butted portion of the steel plate can be covered with the vertical rail member so as not to be exposed directly, so that the fireproof performance can be enhanced.

It is a top view of the solar power generation device in this embodiment. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a top view showing arrangement of a steel plate. FIG. 3 is an enlarged view of the vicinity of a vertical rail member in FIG. 2. FIG. 6 is an exploded view of FIG. 5.

  Embodiments of the present invention will be described in detail with reference to the drawings. The solar power generation device of this embodiment is attached to the roof of a building formed in an inclined surface shape. That is, the solar power generation device is provided along the slope of the roof surface. Moreover, the solar power generation device of this embodiment is formed integrally with the roof when the building is constructed, and has a roof-integrated support structure that also serves as the roof of the building.

  In FIG. 1, the top view of the solar power generation device in this embodiment is shown. In this embodiment, two photovoltaic power generation panels 1 are juxtaposed along the horizontal direction orthogonal to the inclination direction of the roof surface, two along the inclination direction of the roof surface, and a total of six solar panels. The photovoltaic panel 1 is supported and fixed. The photovoltaic power generation panel 1 constitutes a panel body 10 having a peripheral portion held by a frame body 11 framed in a square shape, and the panel body 10 is supported by a gantry 2 installed on a roof surface. .

  The frame 11 is orthogonal to the vertical frame 13 that holds the vertical sides along the inclination direction of the roof surface among the edges of the photovoltaic power generation panel 1 and the inclination direction of the roof surface among the edges of the solar power generation panel 1. It consists of a horizontal frame 12 that holds the horizontal sides along the left-right direction. The horizontal frame 12 includes an upper frame 50 that constitutes the upper side of the panel body 10 and a lower frame 55 that constitutes the lower side of the panel body 10. The vertical frame 13 is supported and fixed by a vertical rail member 20 that constitutes the gantry 2, and the horizontal frame 12 is supported by an intermediate bracket 21 that constitutes the gantry 2.

  The vertical rail members 20 constituting the gantry 2 are formed in a long shape so as to be able to support and fix the vertical sides of the panel bodies 10 adjacent in the left-right direction, and are arranged at regular intervals in the left-right direction. In the present embodiment, since three panel bodies 10 are arranged in the left-right direction, as shown in FIG. 1, the vertical rail members 20 arranged at both ends in the left-right direction to support and fix the panel body 10 only on one side, Longitudinal rail members 20 that are arranged at intermediate positions in the direction and support and fix the panel body 10 on both sides are provided.

  The horizontal side of the panel body 10 is supported by an intermediate bracket 21 formed in a short shape. The detailed configuration will be described later. Moreover, the eaves side end member 22 is provided in the lower end part of a solar power generation device along the left-right direction, and the ridge side end member 23 is provided in the upper end part of a solar power generation device along the left-right direction, respectively.

  It demonstrates in detail per structure of a solar power generation device. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB in FIG. In FIG. 2, the left half of the AA cross section is omitted and a part of the middle is omitted. In FIG. 3, the middle part of the BB cross section is omitted. As shown in FIG. 2, the roof surface 3 of the building is configured such that a field board 30 is supported by rafters 32 arranged at regular intervals in the left-right direction. The base plate 30 is made of wood, and a waterproof sheet 31 is stretched on the surface thereof.

  A steel plate 4 is laid on the surface of the roof surface 3, and the gantry 2 is installed on the steel plate 4 to support and fix the panel body 10. The gantry 2 has the vertical rail member 20 that supports and fixes the vertical side of the panel body 10 as described above. The vertical rail member 20 is arranged immediately above the rafter 32 in accordance with the interval between the rafters 32 and is fixed to the roof surface 3 and the rafter 32 with screws. Thereby, the fixed intensity | strength of the mount frame 2 can be enlarged.

  The gantry 2 includes a vertical rail member 20 and an intermediate bracket 21 provided between the vertical rail members 20. The vertical rail member 20 supports the vertical frame 13 of the panel body 10 along the longitudinal direction, and the intermediate bracket 21 supports the horizontal frame 12 of the panel body 10 at regular intervals. Since the length in the left-right direction of the intermediate bracket 21 is smaller than the distance between the vertical rail members 20, a space region that penetrates along the inclination direction of the roof surface is formed in the gantry 2 below the panel body 10. Air can escape through the space area.

  As shown in FIG. 3, the intermediate bracket 21 supports the horizontal frames 12 and 12 constituting the two panel bodies 10 adjacent to each other along the inclination direction of the roof surface, and the ridge side end and the eaves side end. Then, one horizontal frame 12 is supported, and the movement of the panel body 10 in the thickness direction is restricted at the middle portion of each panel body 10 in the left-right direction. Thereby, the bending of the panel body 10 by a wind pressure etc. can be prevented.

  Next, the arrangement of the steel plates 4 laid on the roof surface 3 will be described. In FIG. 4, the top view showing arrangement | positioning of the steel plate 4 is shown. As shown in this figure, three steel plates 4 are juxtaposed along the roof surface inclination direction and three along the left-right direction. Among these, the steel plates 4 adjacent to each other along the inclination direction of the roof surface are such that the lower end portion of the steel plate 4 on the ridge side overlaps with the upper end portion of the steel plate 4 on the eave side and constitutes the overlapping portion 6. Since the steel plate 4 on the ridge side overlaps the upper surface side of the steel plate 4 on the eaves side, the overlapping portion 6 has water on the roof surface 3 from the butt portion 5 of the steel plate 4 when rainwater flows from the ridge side to the eaves side. Can be prevented from entering.

  On the other hand, the steel plates 4 adjacent to each other in the left-right direction are abutted without overlapping each other, and constitute a straight abutting portion 5 over the entire length in the inclination direction of the region where the steel plates 4 are arranged.

  The vertical rail member 20 of the gantry 2 is arranged so as to cover the abutting portion 5 formed by arranging the steel plate 4. Therefore, the abutting portion 5 between the steel plates 4 is covered with the vertical rail member 20 so as not to be directly exposed to the outside. As a result, it is possible to prevent the fire performance from deteriorating via the abutting portion 5. For this reason, the width direction dimension of the steel plate 4 is set according to the interval at which the vertical rail members 20 are arranged, that is, the width of the panel body 10. The interval at which the vertical rail members 20 are disposed matches the width of the panel body 10 as described above, and at the same time, the pitch of the rafters 32 that support the roof surface 3 is the same. This also matches the pitch.

  In the present embodiment, the abutting portions 5 are formed by abutting the steel plates 4 in the left-right direction, but the abutting portions 5 may be formed by providing a gap between the steel plates 4. In any case, it is possible to ensure fire prevention performance by forming the vertical rail member 20 wider than the abutting portion 5 so that the abutting portion 5 is not directly exposed to the outside.

  Next, the fixing structure of the vertical rail member 20 will be described in detail. 5 shows an enlarged view of the vicinity of the vertical rail member 20 in FIG. 2, and FIG. 6 shows an exploded view of FIG. The vertical rail member 20 is placed on the steel plate 4 laid on the roof surface 3 and fixed to the roof surface 3 via the steel plate 4, the inner rail portion 41 rising from the bottom surface portion 40, and the outer side A rail portion 42 and an attachment fixing portion 43 formed further inside the inner rail portion 41 are provided.

  As described above, the bottom surface portion 40 is formed so as to be wider than the butt portion 5 of the steel plate 4 so that the butt portion 5 is not directly exposed to the outside. Further, the vertical rail member 20 is fixed to the roof surface 3 by screws 48 at the center position of the bottom surface portion 40.

  The inner rail portion 41 and the outer rail portion 42 are each composed of a set of rising pieces sandwiching the attachment fixing portion 43. The inner rail portion 41 rises in the vertical direction from the bottom surface portion 40, and has a planar panel fixing portion 44 that extends toward the center side of the vertical rail member 20 at its upper end portion. 41 and the panel fixing portion 44 are formed to have a substantially L-shaped cross section.

  Since the vertical rail member 20 includes the outer rail portion 42 and the inner rail portion 41, the outer large concave portion including the inner rail portion 41, the outer rail portion 42, and the bottom portion 40 and the inner rail 41. And an inner small concave portion made up of the attachment fixing portion 43 and the bottom surface portion 40, respectively. Therefore, even if water enters from between the photovoltaic power generation panels 1, these recesses serve as water passages, and water flows under the roof, so that the water can be prevented from entering a fixed position by the screws 48. Furthermore, since the center side edge part of the vertical rail member 20 exists in the outer position rather than the attachment fixing part 43, even if water permeates into the upper surface side of the panel fixing part 44, the panel fixing | fixed part 44 does not enter water. Since it falls in the area | region between the inner rail parts 41 outside the attachment fixing | fixed part 43, it can prevent that water permeates into the inner side of the attachment fixing | fixed part 43, ie, the fixing position side of the screw | thread 48. FIG.

  Moreover, the part which fixes the screw | thread 48 of the bottom face part 40 is formed with the convex part 40a made thick, and the screw 48 enclosed by the attachment fixing | fixed part 43 by forming the convex part 40a. Even if water permeates into the fixed position, the attachment fixing portion 43 and the convex portion 40a form a water passage by a concave portion, and water flows through the passage below the roof, so that the screw surface inserted through the roof surface 3 It is possible to prevent water from entering the glass, and the waterproofness can be further enhanced.

  The vertical frame 13 of the panel body 10 is placed on the panel fixing portion 44 of the vertical rail member 20, and is fixed by bolts that are fasteners. The vertical frame 13 includes a peripheral surface portion 13 a that faces the peripheral surface of the photovoltaic power generation panel 1, a planar fixed surface portion 13 b that protrudes from the peripheral surface portion 13 a to the outer peripheral side of the panel body 10, and the peripheral surface portion 13 a to the panel body 10. A panel holding portion 13c that protrudes toward the inner peripheral side and holds the peripheral edge portion of the photovoltaic power generation panel 1 is provided. Among these, the fixed surface portion 13b of the vertical frame 13 is placed and fixed to the panel fixing portion 44 of the vertical rail member 20.

  Since the vertical rail member 20 is formed with panel fixing portions 44 on both sides of the center attachment fixing portion 43, the vertical frames 13 of the adjacent left and right panel bodies 10 can be supported and fixed, respectively. Since the left and right panel fixing portions 44 are spaced apart from each other at the front end portions, the upper portion of the attachment fixing portion 43 and the screw 48 is open in the vertical rail member 20. Accordingly, the adjacent vertical frames 13 are also supported and fixed in a separated state. For this reason, the vertical frame 13 can be slid in the left-right direction when the panel body 10 is attached or removed.

  Further, since the left and right panel fixing portions 44 are separated from each other and the attachment fixing portion 43 and the screw 48 are opened upward, the vertical rail member 20 can be easily fixed to the roof surface 3. Removal can also be facilitated. Furthermore, when the vertical frame 13 is fixed to the vertical rail member 20, the fixing surface portion 13b of the vertical frame 13 may be placed and fixed on the panel fixing portion 44 of the vertical rail member 20, so that alignment is easy. Can be. Furthermore, the protrusion 44a is formed in the end surface of the panel fixing | fixed part 44 over the longitudinal direction, and when the panel body 10 is mounted, the drop-off can be prevented.

  The attachment fixing portion 43 of the vertical rail member 20 includes a set of protruding portions having a substantially L-shaped cross section with a fixing position by the screw 48 interposed therebetween. A cover attachment 46 is engaged and fixed to the attachment fixing portion 43, and a vertical rail cover 45 is fixed to the cover attachment 46.

  The cover attachment 46 includes an engagement portion 46 a that can be engaged with the attachment fixing portion 43 at the lower end portion. The cover attachment 46 has a height from the attachment fixing portion 43 to a position in the vicinity of the upper surface of the panel body 10, and a cover fixing portion 46 b that can fix the vertical rail cover 45 is provided at the upper end portion.

  The vertical rail cover 45 includes a cover side fixing portion 45a fixed to the cover fixing portion 46b with screws and a cover portion 45b extending left and right from the cover side fixing portion 45a. The cover portion 45b covers a space portion formed between the peripheral surface portions 13a of the vertical frames 13 adjacent in the left-right direction and extends to a position on the peripheral edge portion of the panel holding portion 13c of the vertical frame 13 constituting the panel body 10. In this way, water can be prevented from entering the vertical rail member 20.

  In the assembly of the solar power generation device of this embodiment, first, the steel plate 4 is laid on the roof surface 3, and the straight butted portion 5 along the inclination direction of the roof surface 3 is formed immediately above the rafter 32. Next, the vertical rail member 20 is disposed so as to cover the butted portion 5 of the steel plate 4 and is fixed to the roof surface 3 with screws 48, and at the intermediate position of the vertical rail member 20, the horizontal frame 12 of the panel body 10. A small piece-like intermediate bracket 21 is fixed to a place where the is placed. Subsequently, the panel body 10 is placed on the vertical rail member 20, and the fixing surface portion 13b of the vertical frame 13 and the panel fixing portion 44 of the vertical rail member 20 are fixed by a fastener. Thereafter, the cover attachment 46 is engaged and fixed to the attachment fixing portion 43 of the vertical rail member 20, and the cover side fixing portion 45a of the vertical rail cover 45 is fixed to the cover fixing portion 46b of the cover attachment 46 by screws. To do.

  By having such an assembly structure, the steel plate 4, the gantry 2, and the panel body 10 can be installed according to the pitch of the rafters 32, and the butted portion 5 of the steel plate 4 can be covered with the vertical rail member 20. Therefore, the fireproof property in the butt | matching part 5 can be made high.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. For example, the number of photovoltaic power generation panels 1 is not limited to that of the present embodiment. Moreover, also about arrangement | positioning of the steel plate 4, what is necessary is just to arrange | position the abutting part 5 so that it may align with the arrangement position of the rafter 32 and the vertical rail member 20, and about the number of sheets, the installation number of the photovoltaic power generation panels 1 is sufficient. It can be set appropriately according to the above.

DESCRIPTION OF SYMBOLS 1 Photovoltaic power generation panel 2 Base 3 Roof surface 4 Steel plate 5 Butting part 6 Overlapping part 10 Panel body 11 Frame body 12 Horizontal frame 13 Vertical frame 13a Peripheral surface part 13b Fixed surface part 13c Panel holding part 20 Vertical rail member 21 Intermediate bracket 32 Rafter 40 Bottom part 43 Attachment fixing part 44 Panel fixing part 45 Vertical rail cover 46 Cover attachment

Claims (5)

In a solar power generation device in which a solar power generation panel is fixed to the roof surface of a building
A steel plate is laid on the roof surface, and a metal mount that supports the panel body holding the photovoltaic power generation panel on the steel plate is provided,
The gantry includes a vertical rail member that supports and fixes a vertical side of the edge of the panel body along the inclination direction of the roof surface,
A plurality of the steel plates are arranged along at least the left-right direction orthogonal to the inclination direction of the roof surface, and the abutting portions of the steel plates adjacent in the left-right direction are made straight over the entire length in the inclination direction, and the abutting portions are The solar power generation apparatus, wherein the vertical rail member is arranged and fixed so as to cover the solar power generation apparatus.   The vertical rail member has a bottom surface portion placed on the steel plate and a rail portion rising from the bottom surface portion, and the rail portion includes a panel fixing portion that supports the panel body, and the bottom surface portion is The photovoltaic power generation apparatus according to claim 1, wherein the photovoltaic power generation apparatus is formed wider than a butt portion of the steel plates.   A plurality of the steel plates are arranged along the right and left direction and the inclination direction of the roof surface, and the butted portions of the plurality of the steel plates along the inclination direction are straight along the entire length in the inclination direction. The solar power generation device according to claim 1 or 2.   The photovoltaic power generation apparatus according to any one of claims 1 to 3, wherein the butted portion of the steel plate and the vertical rail member are provided along a rafter provided on the back side of the roof surface of the building. In the installation method of the solar power generation apparatus in which a steel plate having a plurality of rectangular shapes is laid on the roof surface of the building, and a metal gantry supporting the panel body holding the solar power generation panel is provided on the steel plate,
A plurality of the steel plates are arranged at least in the left-right direction perpendicular to the inclination direction of the roof surface, and the abutting portions of the steel plates adjacent in the left-right direction are straight over the entire length in the inclination direction so as to cover the abutting portions A vertical rail member constituting the gantry is disposed and fixed to the vertical rail member, and a vertical side of the edge of the panel body along the inclination direction of the roof surface is fixed to the vertical rail member. Installation method.

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