JP2013064309A - Roof having solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof having solar cell modules whose light-receiving surfaces face the same direction in the case that the solar cell modules are installed on roof surfaces, each of which has a different slope direction.SOLUTION: A roof 100 is provided with solar cell modules 10. The roof 100 includes a plurality of roof surfaces 100a and 100b which descend with a gentle slope from both sides of the roof 100 toward a drain gutter 110 arranged at the approximate center of the roof 100. Frames 20A and 20B are installed on the respective roof surfaces 100a and 100b of the drain gutter 110. The solar cell modules 10 are fixed on the frames 20A and 20B which are installed on the respective roof surfaces 100a and 100b of the drain gutter 110, such that the respective slope angles to the horizontal plane are equalized.

Description

  The present invention relates to a roof provided with a solar cell module.

  Conventionally, when the solar cell module is installed on the roof, the gantry is installed so that the inclined roof surface of the roof and the light receiving surface of the solar cell module are parallel to each other (for example, Patent Document 1). By the way, as a shape of the roof, there is a roof called a non-falling snow roof formed by a plurality of roof surfaces gently descending from both sides of the roof toward the approximate center of the roof.

JP-A-8-70132

  However, in the case of a snow-free roof, when the solar cell module is installed by installing a mount so that the inclined roof surface of the roof and the light receiving surface of the solar cell module are parallel to each other, Since the direction of the light receiving surface of the solar cell module is different every time, when the solar cell module is installed on a plurality of roof surfaces, the light receiving surface of the solar cell module cannot be directed in the same direction.

  Therefore, when a solar cell module is installed for each roof surface having a different inclination direction, it is desirable to direct the light receiving surface of the solar cell module in the same direction.

  An object of this invention is to provide the roof provided with the solar cell module in which the light-receiving surface of the solar cell module is directed in the same direction when the solar cell module is installed for each roof surface having different inclination directions. .

In order to solve at least one of the above problems, the invention according to claim 1 is, for example, as shown in FIG.
A roof 100 including a solar cell module 10,
The roof 100 is formed of a plurality of roof surfaces 100a and 100b that gently descend from both sides of the roof 100 toward a drainage bunker 110 provided substantially at the center of the roof 100,
Mounts 20A and 20B are installed on the respective roof surfaces 100a and 100b of the drainage bunker 110,
The solar cell modules 10 are respectively attached to the mounts 20A and 20B installed on the roof surfaces 100a and 100b of the drainage bunker 110 so that the inclination angles with respect to a horizontal plane are equal. To do.

  According to the first aspect of the present invention, the roof is formed by a plurality of roof surfaces 100a and 100b that gently descend from both sides of the roof 100 toward the drainage bunker 110 provided substantially at the center of the roof 100. 100, the solar cell modules 10 are respectively attached to the mounts 20A and 20B installed on the roof surfaces 100a and 100b of the drainage reed 110 so that the inclination angles with respect to the horizontal plane are equal. Thus, since the light receiving surface of the solar cell module can be directed in the same direction, a roof provided with the solar cell module in which the light receiving surface of the solar cell module is directed in the same direction can be provided.

The invention according to claim 2 is, for example, as shown in FIG.
In the roof 100 provided with the solar cell module 10 according to claim 1,
The mounts 20A and 20B installed on the roof surfaces 100a and 100b of the drainage bunker 110 are arranged at positions where the shadow of the solar module 10 on one mount 20A is not projected on the solar module 10 on the other mount 20B. It is characterized by being.

  According to invention of Claim 2, the shadow S of the solar module 10 on one base 20A among the bases 20A and 20B installed in each roof surface 100a, 100b of the drainage horizontal shaft 110 is the other base 20A. Since the mounts 20A and 20B are arranged so as not to be projected onto the upper solar module 10, it is possible to suppress a decrease in the amount of power generated by the solar cell module 10 due to the shadow S.

The invention described in claim 3 is, for example, as shown in FIGS.
In the roof 100 provided with the solar cell module 10 according to claim 1 or 2,
A plurality of support bases 30 are provided on the roof surfaces 100a and 100b so as to be separated from each other in a direction intersecting with the inclination direction of the roof 100, and the support bases 20A and 20B are provided on the plurality of support bases 30. And

  According to the invention described in claim 3, the plurality of support bases 30 are provided on the roof surfaces 100 a and 100 b so as to be spaced apart from each other in a direction intersecting the inclination direction of the roof 100, and the plurality of support bases 30 are Since the gantry 20A, 20B is provided, the gantry 20A, 20B is disposed above the roof surface 100a, 100b at least by the height of the support pedestal 30, so the gantry 20A, 20B and the roof surface 100a, A space is provided between 100b and a flow path for rainwater or the like can be secured.

For example, as shown in FIG. 1 and FIG.
In the roof 100 provided with the solar cell module 10 according to claim 3,
The pedestal frame 20 extending in a direction crossing the inclination direction of the roof is attached to the support pedestal 30, and the pedestals 20A and 20B are attached to the pedestal frame.

  According to the invention described in claim 4, the pedestal frame 20 extending in a direction intersecting with the inclination direction of the roof is attached to the support pedestal 30, and the pedestals 20 A and 20 B are attached to the pedestal frame 20. Accordingly, the gantry 20A, 20B can be attached to an arbitrary position in the longitudinal direction of the gantry frame 20.

The invention according to claim 5 is, for example, as shown in FIG.
In the roof 100 provided with the solar cell module 10 according to claim 4,
The gantry 20A, 20B includes a gantry body 20a, 20b attached to each gantry frame 20, and a support frame 26 provided on the gantry body 20a, 20b and supporting the solar cell module 10, and the sun It has the adjustment means 21b and 26 which can adjust the inclination-angle of the battery module 10, It is characterized by the above-mentioned.

  According to the invention described in claim 5, the adjusting means is provided on the gantry body 20 a, 20 b and includes a support frame 26 that supports the solar cell module 10, and is capable of adjusting the inclination angle of the solar cell module 10. By having 21b and 26, since the inclination angle of the solar cell module 10 can be adjusted by the adjusting means 21b and 26, the solar cell module 10 can be respectively attached so that the inclination angle with respect to the horizontal plane is equal for each roof surface. it can.

For example, as shown in FIG. 4 and FIG.
In the roof 100 provided with the solar cell module 10 according to claim 5,
The gantry main bodies 20a and 20b have a plurality of legs with different lengths joined in the gantry frame 20 in the roof surface inclination direction.

  According to the invention described in claim 6, the gantry main bodies 20 a and 20 b have a plurality of legs having different lengths in the roof surface tilting direction, which are joined to the gantry frames 20, so that the tilting directions are different. In each roof surface 100a, 100b, the light-receiving surface of the solar cell module can be directed in the same direction.

  ADVANTAGE OF THE INVENTION According to this invention, when a solar cell module is installed for every roof surface from which an inclination direction differs, the roof provided with the solar cell module with which the light-receiving surface of the solar cell module was orient | assigned to the same direction can be provided. .

It is a figure which shows an example of the roof provided with the solar cell module which concerns on this invention, (a) is a top view, (b) is AA sectional drawing of Fig.1 (a), (c) is FIG. It is BB sectional drawing of). It is an image figure at the time of installing a solar cell module on a roof same as the above. It is a figure which shows the support stand which supports the mount frame which installs a solar cell module, (a) is the a section enlarged view of FIG.1 (b), (b) is the b section enlarged view of FIG.1 (b), (c) ) Is an enlarged view of part c of FIG. It is a figure which shows the mount frame which installs a solar cell module, (a) shows the mount frame 20A installed in the roof surface 100a of Fig.1 (a), (b) shows the roof surface 100b of Fig.1 (a). It is a figure which shows the installation stand 20B installed. In the same figure, (a) shows the gantry 40A installed on the roof surface 100a of FIG. 1 (a), and (b) shows the gantry 40B installed on the roof surface 100b of FIG. 1 (a). It is a table | surface which shows the fluctuation | variation ratio of electric power generation amount by an azimuth angle and an inclination angle. It is explanatory drawing which shows the state of the shadow in case an inclination angle is 40 degree | times. It is explanatory drawing which shows the state of snow accumulation in case an inclination angle is 10 degree | times. It is explanatory drawing which shows the state of the shadow in case an inclination angle is 20 degree | times. It is explanatory drawing which shows the modification of the engagement relationship of the legs 21a and 21b of the mount frame 20 and the mounts 20A and 20B, and the support stand 30. FIG. It is explanatory drawing which shows the state which decomposed | disassembled the mount frame 20, the leg 21a, 21b, and the support stand 30 of FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment>
In FIG. 1, the racks 20 </ b> A and 20 </ b> B arranged on the respective roof surfaces 100 a and 100 b of the drainage bunker 110 provided substantially at the center of the roof 100 are arranged in two rows vertically and four rows in the horizontal direction. A roof 100 on which a plurality of solar cell modules 10 are installed is shown.

  As shown in FIG. 1, the roof 100 is formed by a plurality of roof surfaces 100 a and 100 b that gently descend from both sides of the roof 100 toward a drainage bunker 110 provided substantially at the center of the roof 100. Here, as shown in FIG.1 (b), since the roof surface 100a and the roof surface 100b are descend | falling gently inclined toward the drainage recumbent 11, the inclination direction differs. Here, as shown in FIG. 3, the roof surfaces 100 a and 100 b are provided by arranging a plurality of roof panels 50. The roof panel 50 is configured by providing a structural plywood 52 for the roof panel 50 on a roof panel core member 51 framed in a rectangular shape.

  And the pedestals 20A and 20B are installed on the roof surfaces 100a and 100b of the drainage reeds 110, respectively, and the solar cells The modules 10 are respectively mounted so that the inclination angles with respect to the horizontal plane are equal. A plurality of support bases 30 are provided on the roof surfaces 100a and 100b so as to be spaced apart from each other in the direction of inclination of the roof 100 and in the direction intersecting the inclination direction. The mounts 20A and 20B are attached. The plurality of gantry frames 20 extend in a direction intersecting the inclination direction of the roof 100, are provided apart from each other in the inclination direction of the roof 100, and the gantry frame 20 is attached to the support base 30. The gantry frame 20 has a U-shaped cross section and is formed of a web and flanges provided at both ends thereof. As shown in FIGS. 1C, 3A, and 3B, the legs 21a and 21b of the gantry body 20A are fixed to the web of the gantry frame 20 with screws 20c and the like. The legs 21a and 21b fixed to the same gantry frame 20 are equal in length, and in order to direct the light receiving surface of the solar cell module in the same direction, the gantry frames 20 provided apart from each other in the inclination direction of the roof surface. The length of the leg 21 b fixed to one side is longer than the length of the leg 21 a fixed to the other frame 20. The legs 21a and 21b of the gantry body 20B are also fixed to the web of the gantry frame 20 with screws 20c and the like, similarly to the gantry body 20A.

  As shown in FIG. 3, the support base 30 includes a rectangular parallelepiped support base body 31 and a metal plate 34 provided on the support base body 31, and is supported on the structural plywood 52 of the roof panel 50. A base body 31 is attached using an adhesive 32. Here, the upper part of the support base body 31 is provided with a recess for accommodating the head of the anchor bolt 60a. Then, the anchor bolt 60a is inserted into the hole provided in the metal plate 34, and this anchor bolt is further inserted into the hole provided in the flange of the gantry frame 20, and the nut 60b is screwed into the anchor bolt 60a and tightened. Thus, the metal plate 34 and the gantry frame 20 are bolted. Further, a structural screw 33 is inserted into a structural screw hole provided in the metal plate 34, and the structural screw 33 is further inserted into the support base body 31, and then the structural plywood for the roof panel. The metal plate 34 and the support base body 31 are fixed to the roof panel by being screwed into 52 and the roof panel core 51. Thus, by fixing the support base 30 to the roof panel core material 51 and the structural plywood 52, the support base 30 can be firmly fixed on the roof. Further, the structural plywood 52 and the support base 30 of the roof panel 50 are covered with a waterproof sheet 53, an airtight foam sheet 54, and the like, and are waterproofed.

As shown in FIG. 4, the bases 20 </ b> A and 20 </ b> B are bases to which the upper and lower two-stage solar cell modules 10 are attached in an oblique direction, and the base bodies attached to the webs of the plurality of base frames 20 with screws 20 c and the like. 20a, 20b and a support frame 26 provided on the gantry body 20a, 20b and supporting the solar cell module 10 from below. The legs 21b and the support frame 26 are provided as adjusting means capable of adjusting the inclination angle of the solar cell module 10. That is, the inclination angle of the frame 26 can be adjusted by adjusting the length of the leg 21b. The support frame 26 is inclined with respect to a horizontal plane, and the lower end portion in the inclined direction is pin-coupled to the legs 21a of the gantry main bodies 20a and 20b. Further, the upper end of the support frame 26 in the tilt direction is pin-coupled to the upper end of the leg 21b.
In the adjusting means 21b and 26 having such a configuration, by adjusting the length of the leg 21b that supports the support frame 26, the support frame 26 is rotated up and down with its lower end portion as a fulcrum, thereby supporting the support frame 26. The inclination angle of the frame 26 can be adjusted, whereby the inclination angle of the solar cell module provided on the support frame 26 can be adjusted.
The members constituting the gantry 20A, 20B are appropriately joined by screws 20c, rivets, welding, or the like. Further, in the present embodiment, the adjusting means 21b and the leg 21b serving as the adjusting means 21 and the support frame 26 are configured. However, in the present invention, the adjusting means is configured only by the leg 21b without using the supporting frame 26, and the leg 21b. You may attach the upper end part of a solar cell module directly to the upper end part.

  The gantry body 20a, 20b includes a plurality of legs 21a, 21b, a reinforcing member 25a joined to a leg 21a adjacent to the direction intersecting the roof surface inclination direction, and a plurality of legs adjacent to the roof surface inclination direction. It is comprised from the some reinforcement member 25b to which the upper part and the lower part of 21a, 21b are joined. In the example shown in FIGS. 4 and 5, the two reinforcing members 25 b are arranged so as to intersect with each other at the center thereof, and the upper and lower portions of the plurality of legs 21 a and 21 b adjacent to each other in the inclination direction of the roof surface. Each is joined. The gantry main bodies 20a and 20b have a plurality of legs 21a and 21b which are joined to the gantry frames 20 and have different lengths in the roof surface inclination direction. In addition, when the areas of the roof surfaces 100a and 100b are narrow and the gantry 20A and the gantry 20B need to be arranged close to each other, the roof surface is not affected by the shadow of the gantry 20A installed on the roof surface 100a. You may set so that the leg of the mount 20B installed in 100b may become longer than the leg of the mount 20A. In this case, even if the gantry 20A and the gantry 20B are arranged close to each other, they are less susceptible to the shadow of the gantry 20A installed on the roof surface 100a.

  Here, in the example shown in FIG. 4, the lengths of the legs 21b are different in the gantry 20A, 20B from the gantry main bodies 20a, 20b. For example, when the inclination angle with respect to the horizontal plane of the support frame 26 on the gantry 20A installed on the roof surface 100a is set to 20 degrees and the length of the legs 21b is determined, the support frame 26 is installed on the roof surface 100b. The inclination angle of the support frame 26 on the gantry 20B with respect to the horizontal plane is also set to 20 degrees, and the length of the leg 21b is determined. The length of the leg 21b can be determined in advance with respect to a preset roof slope (for example, 1/12). Therefore, it is possible to use a leg 21b that has been cut to a predetermined length in advance. Alternatively, for example, the leg 21b may have a structure whose length can be adjusted. In this case, for example, two cylindrical members having different diameters are prepared, the other cylindrical member is slidably inserted into one cylindrical member, and the other cylindrical member has a predetermined length. A member that can be fixed to a predetermined length by inserting a pin, a screw, or the like into the hole overlapped with the hole provided in the two cylindrical members in a state in which is inserted.

(Modification)
In the example shown in FIG. 4, the gantry 20 </ b> A, 20 </ b> B has been described as a gantry on which the upper and lower two-stage solar cell modules 10 are attached in an oblique direction. However, as shown in FIG. 5, mounts 40 </ b> A and 40 </ b> B to which the one-stage solar cell module 10 is attached may be installed on the roof 100. The gantry 40A, 40B is provided on the gantry main body 40a, 40b joined to each gantry frame 20, and the gantry main body 40a, 40b, and supports the solar cell module 10 from below. And a frame 26. The legs 21b and the support frame 26 are provided as adjusting means capable of adjusting the inclination angle of the solar cell module 10. That is, the inclination angle of the frame 26 can be adjusted by adjusting the length of the leg 21b. 4 differs from the gantry 20A, 20B in FIG. 4 in that the length of the leg 21b and the length of the support frame 26 are set shorter than those of the gantry 20A, 20B, and the size of the gantry body 40a, 40b is small. In addition, in the gantry 20A, 20B, 40A, 40B, the leg 21a can use the leg of the same length. In the modification, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  According to the present embodiment, in the roof 100 that is formed by a plurality of roof surfaces 100a, 100b that gently descend from both sides of the roof 100 toward the drainage recumbent 110 provided in the approximate center of the roof 100, It is the same by attaching the solar cell modules 10 to the mounts 20A and 20B installed on the roof surfaces 100a and 100b of the drainage horizontal shaft 110 so that the inclination angles with respect to the horizontal plane are equal. Since the light receiving surface of the solar cell module can be directed in the direction, a roof including the solar cell module in which the light receiving surface of the solar cell module is directed in the same direction can be provided.

  Further, a plurality of support bases 30 are provided on the roof surfaces 100 a and 100 b so as to be spaced apart from each other in a direction intersecting the inclination direction of the roof 100, and the mounts 20 </ b> A and 20 </ b> B are attached to the plurality of support bases 30. Thus, since the pedestals 20A and 20B are arranged on the roof surfaces 100a and 100b at least as much as the height of the support table 30, a space is provided between the gantry 20A and 20B and the roof surfaces 100a and 100b. A flow path for rainwater and the like can be secured.

  Further, the gantry frame 20 extending in a direction intersecting with the inclination direction of the roof is attached to the support base 30, and the gantry frames 20 A and 20 B are attached to the gantry frame 20. The mounts 20A and 20B can be attached to arbitrary positions in the longitudinal direction.

  Further, the adjusting means includes adjustment means 21b and 26 which are provided on the gantry main bodies 20a and 20b and which support the solar cell module 10 and which can adjust the inclination angle of the solar cell module 10. Since the inclination angle of the solar cell module 10 can be adjusted by 21b and 26, the solar cell module 10 can be attached so that the inclination angle with respect to the horizontal plane is equal for each roof surface.

  The gantry body 20a, 20b has a plurality of legs 21a, 21b with different lengths in the roof surface inclination direction, which are joined to each gantry frame 20, so that the roof surfaces 100a, In 100b, the light-receiving surface of the solar cell module can be directed in the same direction.

In addition, although it mentioned above that the solar cell module 10 attached to the bases 20A and 20B has the same inclination angle with respect to a horizontal surface, the value preferable as an inclination angle is explained in full detail. FIG. 6 is a table showing the fluctuation ratio of the generated electric power according to the azimuth angle and the inclination angle. Here, when the azimuth angle is 0 degree, the inclination direction of the solar cell module 10 is in the state of facing south. Further, when the azimuth angle is 90 degrees, the inclination direction of the solar cell module 10 is in a state of facing true east or true west. And when it is 45 degree | times, it is the state which the inclination direction of the solar cell module 10 has faced the southeast or the southwest. As shown in FIG. 6, when the inclination angle of the solar cell module 10 is 45 degrees or 27 degrees and the generated power amount when the azimuth angle is 0 degrees is 100%, the generated power is gradually increased under other conditions. It turns out that quantity will fall. In addition, when the tilt angle is 45 degrees or 27 degrees, the generated electric energy is greatly reduced when the azimuth angle is 45 degrees or 90 degrees. As shown in FIG. 7, when the inclination angle is large, the shadow S of the solar cell module 10 mounted on the front gantry 20A is applied to the solar cell module 10 mounted on the rear gantry 20B. . Moreover, when the inclination angle is large, the influence of wind becomes large, which is not preferable.
On the other hand, when the tilt angle is 10 degrees, the difference in the amount of generated power due to the azimuth is small. However, when the inclination angle is about 10 degrees, as shown in FIG. 8, when there is snow T on the solar cell module 10, the snow does not slide down easily, and as a result, the power generation amount may decrease. high.

For this reason, it is preferable that the inclination angle is 20 degrees in view of the balance between the difference in the amount of generated power due to the azimuth and the angle at which snow can be dropped from the solar cell module 10. FIG. 9 shows the state of the gantry 20A, 20B and the solar cell module 10 when the inclination angle is 20 degrees.
In this case, it is preferable that the gantry 20A, 20B is arranged at a position where the shadow S of the solar cell module 10 on one gantry 20A is not projected onto the solar module 10 on the other gantry 20B. At sunrise and sunset, the projected shadow S is the longest. Therefore, in consideration of this, the placement of the mounts 20A and 20B and the installation posture of the solar cell module 10 are set so that the other mount 20B is not shaded. Etc. need to be set.
Of the mounts 20A and 20B installed on the roof surfaces 100a and 100b of the drainage recumbent 110, the shadow S of the solar module 10 on one mount 20A is not projected onto the solar module 10 on the other mount 20A. Since the mounts 20A and 20B are arranged, it is possible to suppress a decrease in the amount of power generated by the solar cell module 10 due to the shadow S.

Moreover, in the said embodiment, although the case where the legs 21a and 21b of the mount frame 20A and 20B are directly mounted on the support stand 30 with the mount frame 20 is demonstrated, as shown in FIG. The legs 21 a and 21 b of the gantry 20 </ b> A and 20 </ b> B may be installed on the gantry frame 20 placed on the support pedestal 30.
In this case, as shown in FIG. 11, the gantry frame 20 and the legs 21a and 21b are fixed in advance by driving a screw (not shown) from below the gantry frame 20.
Further, the waterproof property is secured to the support base 30 by bonding two waterproof sheets 53 with reference to the position of the anchor bolt 60a. Since the bonded portion of the waterproof sheet 53 is disposed on the upper surface of the support base 30, the intrusion of water from the bonded portion is suppressed. In the bonded portion, higher waterproofness can be exhibited by overlapping two waterproof sheets or making the bonded portion watertight with a sealing material.
Thereafter, the gantry frame 20 integrated with the legs 21a and 21b is placed on the support base 30 via the anchor bolts 60a, and the nuts 60b (not shown in FIG. 11) are fastened to the anchor bolts 60a. The gantry frame 20 and the legs 21a and 21b are fixed on the pedestal 30.
As shown in FIG. 10, since the bonded portion of the waterproof sheet is arranged one step above the roof surfaces 100a and 100b, even if the snow Y melts and flows on the roof surfaces 100a and 100b, from the bonded portions. Water can be prevented from entering.

DESCRIPTION OF SYMBOLS 10 Solar cell module 20 Base frame 20A Base 20B Base 30 Support base 40A Base 40B Base 100 Roof 100a Roof surface 100b Roof surface 110 Drainage horizontal

Claims (6)

A roof with solar cell modules,
The roof is formed of a plurality of roof surfaces that gently descend from both sides of the roof toward the drainage bunker provided in the approximate center of the roof,
A stand is installed on each roof surface of the drainage bunker,
A roof provided with a solar cell module, wherein the solar cell module is attached to the frame installed on each roof surface of the drainage bunker so that the inclination angles with respect to a horizontal plane are equal to each other. . In the roof provided with the solar cell module according to claim 1,
The mounts installed on the respective roof surfaces of the drainage bunkers are arranged at positions where shadows of the solar modules on one of the mounts are not projected onto the solar modules on the other mount. A roof with a solar cell module. In the roof provided with the solar cell module according to claim 1 or 2,
A roof provided with a solar cell module, wherein a plurality of support stands are provided apart from each other in a direction intersecting with the inclination direction of the roof on the roof surface, and the frame is attached to the plurality of support stands. . In the roof provided with the solar cell module according to claim 3,
A roof provided with a solar cell module, wherein the support frame is attached to the support base so as to extend in a direction intersecting with the inclination direction of the roof, and the base is attached to the base frame. In the roof provided with the solar cell module according to claim 4,
The gantry includes a gantry body that is attached to each gantry frame, and a support frame that is provided on the gantry body and supports the solar cell module, and is capable of adjusting an inclination angle of the solar cell module. A roof provided with a solar cell module. In the roof provided with the solar cell module according to claim 5,
A roof provided with a solar cell module, wherein the gantry body has a plurality of legs having different lengths in the roof surface inclination direction, which are joined to each gantry frame.

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