JP3298695B2 - Roof structure with solar cells - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure having a solar cell.

[0002]

2. Description of the Related Art Heretofore, it has been practiced to install a plurality of solar cells on a roof of a building structure such as a house and supply power to the house from the solar cells to save energy. When a solar cell is installed on a roof, a gantry fixed type in which a panel-shaped solar cell is fixed on an existing roof by a dedicated gantry is generally used.

[0003]

By the way, in the case of a house by the panel construction method, there is a technique in which a solar cell is provided on the upper surface of a roof panel constituting a roof and integrated therewith, and the above-mentioned dedicated mount is omitted. In this case, it is difficult to form a complete water-stopping structure due to the difficulty of raining at the joint between the plurality of solar cells.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a roof structure having a solar cell having a seam integral with a roof panel and a solar cell integrated with the roof panel. I have.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a roof panel with solar cells having a plurality of solar panels provided on an upper surface of a base panel is provided along a slope of the roof. In a roof structure provided with a solar cell, the solar cell panel is configured by mounting a frame-shaped frame around the solar cell, and this frame is fixed to the upper surface of the base panel, and It is supported in a state housed in a support rail extending along the inclination direction, and the support rail includes a gutter portion in which the frame is housed, and a tubular portion integrally formed below the gutter portion.
The structure is characterized in that the frame is supported in a state of being stored inside the gutter part.

[0006]

According to the present invention, a frame of a plurality of solar cell panels is supported in a state of being housed inside a gutter-like support rail along a slope of a roof, thereby supporting a joint portion of the solar cell panel. It is a structure to receive on rails. The support rail has a two-stage structure consisting of a gutter part and a tubular part below it. Since the frame is housed inside the gutter part, the rainwater flows through the gutter part. Rainwater is received in the cylinder. Therefore, rainwater is completely prevented from leaking to the base panel, and there is no need to provide a special rain-finished structure at the joint of the solar cell panels.

[0007]

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

FIG. 1 shows a schematic cross section of a roof structure of a house to which an embodiment of the present invention is applied, from a ridge M to an eaves N. Reference numeral 1 in FIG. 1 denotes a rectangular solar cell according to the present invention. The roof panel 1 has a roof Y stretched from the ridge M along the eaves N in a longitudinal direction.

The roof panel with solar cells 1 is composed of a plurality of solar cell panels 3 on a rectangular base panel 2 having a face plate 2b stretched over a plurality of cores 2a arranged vertically and horizontally.
Is configured.

As shown in FIGS. 2 to 5, a solar cell panel 3 has a rectangular panel-shaped solar cell 4 in which a large number of solar cells are built in a transparent plate, and is detachably attached to four sides of the solar cell 4. It comprises a glazing channel 5 mounted thereon, an upper frame (frame) 6, a lower frame (frame) 7, and a vertical frame (frame) 8 which are detachably mounted on these glazing channels 5 and serve as frames of the solar cell panel 3. ing.

The glazing channel 5 includes a solar cell 4
And a substantially flat inner piece 9 made of a material having a certain degree of elasticity, and a side that rises substantially perpendicularly to the inner piece 9 from both ends in the width direction of the inner piece 9. A piece 10, a head piece 11 having a trapezoidal cross section connecting these side pieces 10, and a tongue piece 12 extending in a direction (width direction) facing each other on the inner surface of each side piece 10 are integrally formed.
At the center of the inner piece 9, a fitting notch 5a extending in the longitudinal direction is formed. Both ends in the width direction of the inner piece 9 are ribs 9a protruding outward from the side piece 10, and the head piece 11
Are formed at both ends in the width direction. With these ribs, fitting grooves 5b are formed on both side surfaces (upper and lower surfaces in FIG. 3) of the glazing channel 5 in its longitudinal direction.

The glazing channel 5 is mounted on the solar cell 4 by fitting the notch 5a into the edge of the solar cell 4 until the edge of the solar cell 4 hits the inner surface of the head piece 11. In this state, the inner surface of the inner piece 9 facing the fitting notch 5a is in close contact with the edge of the solar cell 4 by pressing, and the tongue piece 12 is pressed by the edge of the inserted solar cell 4 and elastically deforms. The tip is still in close contact with the edge.

Each of the frames 6, 7, 8 is mounted on the glazing channel 5 mounted on the edge of the solar cell 4 as described above, and serves as a frame of the solar cell panel 3. There are three types, an upper frame 6 and a lower frame 7 respectively attached to a pair of sides, and a vertical frame 8 respectively attached to the other pair of sides. The photovoltaic panel 3 is arranged such that the upper frame 6 is mounted on the ridge M side, the lower frame 7 is mounted on the eaves N side, and the vertical frame 8 is along the inclination direction of the roof Y. You. Each of these frames 6, 7, 8 is made of extruded aluminum or the like.

The upper frame 6 and the lower frame 7 have basically the same configuration, and as shown in FIG.
3 and the inner edge plate 14 and the upper plate 1 facing and parallel to each other.
5 and a lower plate 16, a partition plate 17 extending between the outer plate 13 and the inner plate 14 and extending between the upper plate 15 and the lower plate 16 are integrally formed, and an opening 18 extending in the longitudinal direction is formed in the inner plate 14. With the outer edge plate 13, the inner edge plate 14,
Outer cavity 19 surrounded by upper plate 15 and lower plate 16
Are formed in a cylindrical body having a substantially rectangular cross section.

At the end of the lower plate 16, a protruding piece 20 that stands upright toward the upper plate 15 is integrally formed. At the end of the inner edge plate 14 facing the opening 18, a short fitting projection 21 is formed which extends toward the partition plate 17 and fits tightly into the fitting groove 5 b of the glazing channel 5. The partition plate 17 is parallel to the outer edge plate 13 and the inner edge plate 14, and a screw hole piece 22 extending in the longitudinal direction is integrally formed on the inner side of the partition plate 17, that is, on the inner surface facing the outer edge plate 13. A rectangular notch 23 is formed at an edge on the opening 18 side at both ends in the longitudinal direction of the inner edge plate 14.

The difference between the upper frame 6 and the lower frame 7 is that an outer edge plate 13 of the upper frame 6 is integrally formed with an abutting piece 24 having an L-shaped cross section. 16 has an upper frame 6
The extension piece 25 extending outwardly longer than that of the above is integrally formed.

The contact piece 24 is formed at an end near the lower plate 16 of the outer edge plate 13 and extends in the longitudinal direction, and a sealing material 26 is attached to a tip end thereof. Also,
The extension piece 25 extends in parallel with the upper plate 15 through an oblique portion 25a that extends slightly obliquely upward from the upper plate 15, and the lower surface thereof is set to be slightly higher than the upper surface of the lower plate 16. ing. Then, when the upper frame 6 and the lower frame 7 face each other with the outer edge plate 13 and the inner edge plate 14 facing each other with the upper plate 15 facing upward and the sealing material 26 interposed therebetween, the lower frame 7 is extended. The piece 25 covers the upper plate 15 of the upper frame 6.

In this case, the length of the extension piece 25 is set so that the tip thereof coincides with the tip of the upper plate 15 of the upper frame 6 in a state of covering the upper plate 15 of the upper frame 6 as described above. Have been. The extension piece 25 of the lower frame 7 and the upper plate 1 of the upper frame 6
In the case where the overlapping portion with the roof 5 is formed as an inclined state as the roof 1, the gap between the roof 1 and the roof 5 is set to such an extent that the rainwater rises due to the capillary phenomenon and does not enter between the solar battery panels 3.

In the upper frame 6 and the lower frame 7, the upper plate 15 is arranged on the front side of the solar cell 4, the head piece 11 of the glazing channel 5 is inserted into the opening 18, and the upper and lower fitting grooves 5b are provided. By fitting the upper and lower fitting projections 21 to the solar cell 4 via the glazing channel 5,
It is attached to. In this mounting state, the openings 18 of the upper frame 6 and the lower frame 7 are connected to the head pieces 1 of the glazing channel 5.
1 and the inside of the inner edge plate 14 has an inner cavity 19b.
Is formed.

On the other hand, as shown in FIG. 3, the vertical frame 8 comprises an outer edge plate 27 and an inner edge plate 28 which are opposed and parallel to each other, an upper plate 29 and a lower plate 30 which are opposed and parallel to each other, and an outer edge plate 27. A fixing piece 31 extending outward from the lower end of the rim is integrally formed, and the inner edge plate 28 is a tubular body having a substantially rectangular cross section in which an opening 32 extending in the longitudinal direction is formed. The lower plate 30 is located inside the lower edge of the outer edge plate 27 and the lower edge of the inner edge plate 28, and the opening 3 is formed in the inner edge plate 28 between the lower edge plate 30 and the upper edge plate 29.
2 are formed. At the end of the inner edge plate 28 facing the opening 32, a short fitting projection 34 is formed, which extends toward the outer edge plate 27 and tightly fits into the fitting groove 5b of the glazing channel 5. In addition, rectangular notches 35 are formed at inner edges of both end portions of the inner edge plate 28.

In the vertical frame 6, the upper plate 29 is arranged on the front side of the solar cell 4, the head piece 11 of the glazing channel 5 is inserted into the opening 32, and the upper and lower fitting grooves 5b are fitted. The projections 34 are fitted to the solar cells 4 via the glazing channels 5 by fitting them. In this mounted state, the opening 32 of the vertical frame 8 is closed by the head piece 11 of the glazing channel 5, and an upper cavity 33 a is formed inside the inner edge plate 28.

As described above, the upper frame 6, the lower frame 7, and the vertical frame 8
Is attached to each glazing channel 5, both ends of the upper frame 6 and the lower frame 7 enter the inside of the vertical frame 8 by fitting the notches 23 and 35, and the outer plate 29 of the vertical frame 8 By screwing a screw 36 penetrating the outer edge plate 27 of the vertical frame 8 into the screw hole piece 22 of the upper frame 6 and the lower frame 7 by covering the outer plate 29 of the frame 6 and the lower frame 7, Finally, the frames 6, 7, 8 are mounted on the four sides of the solar cell 4 through the glazing channels 5, whereby the solar cell panel 3 is assembled. FIG. 4 shows the assembled state, and FIG. 5 shows the disassembled state.

In this assembled state, both ends of the upper frame 6 and the lower frame 7 enter the inside of the vertical frame 8 by fitting the respective notches 23 and 35, so that the inner cavities of the upper frame 6 and the lower frame 7 are formed. 19b and the upper hollow part 33a of the vertical frame 8 communicate with each other. Also, the surfaces of the upper plates 15, 29 of the frames 6, 7, 8 are somewhat higher than the surface of the solar cell 4, and as a result, the portion of the solar cell 4 on the entire surface of the solar cell panel 3 is: It is a rectangular recess 4a.

The solar cell panel 3 having the above configuration is fixed on the upper surface of the face plate 2b of the base panel 2 in a plurality (for example, two horizontally and five vertically), but is directly fixed to the face plate 2b. Instead, it is fixed to a gutter-shaped support rail 37 fixed to the face plate 2b.

As shown in FIG. 3, the support rail 37 has a mounting plate 39 formed inside a gutter-like plate 38 having a substantially U-shaped cross section and opening upward. It has a two-tiered structure with a gutter part 37a and a lower cylindrical part 37b. The pair of left and right vertical plates 40 of the gutter plate 38 is
In one, a bent portion 40a slightly bent like a crank is formed on the inner side in the width direction, but extends substantially straight upward, and the other extends obliquely inward to form an inclined portion 40b. Here, assuming that the vertical plate 40 on the side where the bent portion 40a is formed is the outer vertical plate 40A and the side where the inclined portion 40b is formed is the inner vertical plate 40B, the inclined portion 40b of the inner vertical plate 40B has A fixing piece 41 extending in the longitudinal direction orthogonal to 40b is integrally provided to protrude. The tip of the fixing piece 41 is on the extension of the inner vertical plate 40B in the gutter portion 37a.

The support rail 37 is provided on the surface of the face plate 2b of the base panel 2 to which the asphalt roofing 42 is attached, with the longitudinal direction thereof along the longitudinal direction of the base panel 2, and the pair of vertical Frame 8 is gutter 3
A space is accommodated in the space 7a, and these are fixed as a pair. That is, the pair of support rails 37 are parallel to each other, and the inner vertical plates 40B face each other. A core material 2a extending in the longitudinal direction of the base panel 2 is fixed below the face plate 2b on which the support rails 37 are arranged, and a wood screw 43 passed through the fixing piece 41 is driven into the core material 2a. Thereby, the support rail 37 is fixed to the base panel 2. The asphalt roofing 42 is fixed to a double-sided tape 44 attached to the face plate 2b along the position where the support rail 37 is arranged.

In this case, all the solar cell panels 3 arranged in the vertical direction of the base panel 2 are fixed to the pair of support rails 37, and the solar cell panels 3 are attached to the portions adjacent to each other in the width direction. Has two support rails 37 fixed close to each other. These adjacent support rails 37
The outer vertical plates 40A face each other with a slight gap therebetween, and sealing materials 45 and 46 are provided above and below between the outer vertical plates 40A, respectively. Each of the straddling seal members 47 is attached over the entire length. In addition, the adjacent outer vertical plate 40A
Is closed by the cosmetic joint gasket 49.

A plurality of solar cell panels 3 are mounted on the support rail 37 with respect to the pair of support rails 37.
To the ridge M side, the lower frame 7 to the eaves N side, and the vertical frame 8 to the gutter 3
It is fixed while being placed on the mounting plate 39 of 7a. In this state, the outer edge plate 2 is located under the upper hollow portion 33a of the vertical frame 8.
7, a lower cavity portion 33b surrounded by the inner edge plate 28, the lower plate 30, and the mounting plate 38 is formed.

The solar cell panels 3 fixed to the pair of support rails 37, that is, fixed along the longitudinal direction of the base panel 2, are fitted together with the sealing material 26 interposed therebetween. The extension piece 25 formed on the lower frame 7 of the solar cell panel 3 on the ridge M side in a state where the upper panel 15 of the upper frame 15 of the solar cell panel 3 on the eaves N side is stretched. It is covered in a state that matches. In addition, a reinforcing member 48 is fixed to the connection part of the solar cell panel 3 over both. In the roof panel 1 with solar cells according to the present embodiment in which the plurality of solar cell panels 3 are stretched on the base panel 2 via the support rails 37 in this manner, the solar cell panel 3 and the base panel 2 In between, the ventilation layer 1A is vacant. The ventilation layer 1A is secured by the frames 6, 7, 8 and the support rail 37.

Now, the roof panel 1 with solar cells is
With the upper frame 6 of the fixed solar cell panel 3 facing the building M side, the roof Y of the house is fixed to a beam (not shown) from the building M to the eaves N.

As shown in FIG. 6, the ridge M is composed of a ridge 50, a combined ridge 51, a ridge wrap plate 52, a cap 53, a ridge ventilation fitting 54 and the like. The ventilation layer 1A of the roof panel 1 communicates with the inside of the ridge ventilation fitting 54, and the inside of the ridge ventilation fitting 54 communicates with the outside. However, a ridge drain board 55 is stretched between the upper frame 6 of the solar cell panel 3 on the ridge M side and the skirting 53, and a gap formed between the lower end portion of the ridge drain board 55 and the upper frame 6 is made of urethane or the like. Is closed by a sealing material 56 made of.

On the other hand, as shown in FIG. 7, the eaves N is provided with a connecting girder 60 and a gutter 61, and a predetermined length is provided between the solar cell panel 3 closest to the eaves N and the tip of the eaves N. Eaves plywood 62 over the entire length of eaves N
And an upper eaves draining plate 63 is further extended thereon. The eaves plywood 62 is fixed to the support rails 37 arranged in the longitudinal direction at the eaves N.
A lower eaves drain plate 64 is provided on the upper surface of the tip of the eaves N side of the base panel 2. These draining boards 6
3, 64 are bent further downward than the inclination of the roof Y at the tip, and the opening 65 faces the inside of the gutter 61. The opening 65 is a ventilation gallery 66 having a large number of ventilation holes. It is blocked.

The gutter 61 is provided at the eaves N via brackets 67 and 68 attached to the connecting girder 60 and an inner hanging member 69.

The above is one embodiment of the roof structure according to the present invention. According to this roof structure, the plurality of solar cell panels 3 are supported by the gutter-shaped support rails 37, and the solar cells arranged in the lateral direction are arranged side by side. Since the joint portion of the panel 3 is received by the support rail 37, the water can be stopped without making the joint portion a special rain break structure.

Now, the rainwater during the rainfall flows on the solar cell panel 3 or the support rail 37 and the gutter 61
It flows to.

The rainwater flowing on the solar cell panel 3 flows on the surface of the upper frame 6, the solar cell 4, and the lower frame 7 in this order. Here, the extension piece 25 of the lower frame 7 is Upper plate 15 of 6
Rainwater does not enter the solar cell panel 3 from the gap between the upper frame 6 and the lower frame 7, and the overlap between them is secured to a certain length. Also, rainwater does not enter the inside of the solar cell panel 3.

The rainwater flowing on the support rail 37 flows on the decorative joint gasket 49, and the gutter portion 37 a of the support rail 37 extends from between the joint 49 and the vertical frame 8.
When entering, the rainwater flows to the eaves N through the gutter portion 37a, and falls into the gutter 61 from the ventilation hole of the ventilation gallery 66.

The rainwater flowing through the gutter section 37a is
9, the support rail 37 is connected to the gutter portion 37a and the cylindrical portion 37 below it.
b, the rainwater is received in the lower cylindrical portion 37b, and flows completely to the gutter 61 via the cylindrical portion 37b without leaking further downward. Therefore, water leakage is completely prevented.

Further, in the above-mentioned roof structure, wind blowing outdoors flows from the ventilation holes of the ventilation gallery 66 provided at the eaves N through the ventilation layer 1A of the roof panel 1, into the ridge ventilation fitting 54, and from there the outdoor outdoor again. It is discharged to. Heat is dissipated by such a flow of wind (air), and the solar cell 4
Is suppressed, and as a result, the energy conversion efficiency of the solar cell 4 is always kept high, and stable power supply is achieved. In addition, the ventilation gallery 66, which is an intake of air into the ventilation layer 1A, functions as a spacer for keeping the distance between the upper and lower eaves draining plates 63, 64 constant.

[0040]

As described above, according to the roof structure having the solar cells of the present invention, the frames of the plurality of solar cell panels are provided with a two-stage water leakage prevention structure including a gutter portion and a cylindrical portion. The structure is supported in a state where it is housed inside the gutter part of the support rail along the slope of the roof, and the joint part of the solar cell panel is received by the gutter part of the support rail, so rainwater flows down the support rail and flows down Therefore, there is an effect that there is no need to form a special rain-closing structure at the joint portion.

[Brief description of the drawings]

FIG. 1 is a side sectional view of one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a sectional view taken along line FF of FIG. 2;

FIG. 4 is a perspective view of a solar cell panel in an assembled state.

FIG. 5 is an exploded perspective view of a solar cell panel.

FIG. 6 is a side sectional view of a building.

FIG. 7 is a side sectional view of an eaves tip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof panel with a solar cell 2 Base panel 3 Solar cell panel 4 Solar cell 6 Upper frame (frame) 7 Lower frame (frame) 8 Vertical frame (frame) 37 Support rail 37a Gutter part 37b Tube part Y Roof

──────────────────────────────────────────────────続 き Continued on the front page (72) Michio Sasaki, Inventor 2-7-23 Kiba, Koto-ku, Tokyo Inside Nippon Light Corporation (72) Inventor Tetsuo Miwa 2--23-3, Kiba, Koto-ku, Tokyo New (56) References JP-A-5-248049 (JP, A) JP-A-56-170652 (JP, U) JP-B-4-26375 (JP, B2) (58) Fields surveyed ( Int.Cl. ⁷ , DB name) E04D 13/18 E04D 3/00-3/40

Claims (1)

(57) [Claims] 1. A roof structure provided with a solar cell having a roof panel provided with a plurality of solar cells provided on an upper surface of a base panel along a slope of the roof, wherein the solar cell panel is , A frame-shaped frame is mounted around the solar cell, and the frame is supported by being stored on a support rail fixed to the upper surface of the base panel and extending along the inclination direction of the roof. The rail includes a gutter for accommodating the frame and a gutter below the gutter.
A two-stage water leakage prevention structure including a cylindrical portion integrally formed on the side of the sun, wherein the frame is supported in a state of being housed inside the gutter portion. Roof structure with batteries.