JP2002161616A - Lower-end section treatment equipment for solarlight power generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily realize a structure, in which the upper end section of a roofing material such as a tile 8 and the lower end section of a solar cell module 4 are continued under the state in which watertightness is held, at a low cost. SOLUTION: The lower end section of the solar cell module 4 is supported to an intermediate starter member 10 fixed onto the top face of a sheathing roof board 13. An intermediate throating plate 9 and a cover plate 11 are installed between the intermediate starter member 10 and the top face of the upper end section of the tile 8. An opening between the underside of the lower end section of the cover plate 11 and the top face of the upper end section of the tile 8 is closed by a sealing member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A photovoltaic power generating apparatus according to the present invention is installed on a roof of a general house to generate electric power in the daytime and supply surplus electric power. The present invention relates to an improvement in the installation structure of a solar power generation device for sale to a power company. In particular, the present invention realizes a structure that allows the installation work of the solar cell module to be performed efficiently even when the solar power generation device is installed from a portion slightly above the edge of the eaves.

[0002]

2. Description of the Related Art With the recent trend toward energy saving for the purpose of preventing global warming and the like, solar power generation devices have been gradually installed on roofs of ordinary houses. . When such a photovoltaic power generator is installed, the power generated by the photovoltaic cells in the daytime is first consumed at home, and when there is surplus, the power is sold to a power company. FIG. 9 shows an example of a conventionally known structure among such solar power generation devices.

[0003] The photovoltaic power generator 1 is a roof 2 of a building.
Is provided with a plurality of solar cells 3 on the upper surface of the solar cell. That is, the photovoltaic power generation device 1 is configured by arranging the photovoltaic modules 4, 4 in each of which a plurality of photovoltaic cells 3, 3 are arranged on the upper surface of the roof 2. The power generated by each of the solar cells 3, 3 can be sent to a power distribution facility of a commercial power supply.

The upper and lower adjacent solar cell modules 4 and 4 are combined with each other so that the lower end of the upper solar cell module 4 and 4 is placed on the upper end of the lower solar cell module 4 and 4. Each of these solar cell modules 4,
4 makes it easy for rainwater that has fallen on the upper surface to flow downward. Further, a portion of the upper end of the roof 2 that is not covered by the solar cells 3 is covered by an upper drain plate 5 to form a drain portion 6. That is, the lower end of the upper draining plate 5 is placed on the upper end of the solar cell module 4, 4 arranged at the top of the solar cell modules 4, 4, and the upper surface of the upper draining plate 5 Constitutes a draining portion 6 inclined with respect to the roof 2 so that rainwater falling above the solar cell modules 4 and 4 can be guided to the upper surfaces of the solar cell modules 4 and 4.

[0005]

As shown in the prior art structure shown in FIG.
If it is a structure located at the tip of the eave, the rainwater flowing on the upper surface of each of the solar cell modules 4 and 4 only needs to be led to the gutter provided at the eave part. On the other hand, as shown in FIG. 10, the photovoltaic power generator 1 may be installed at a position higher than a portion of the roof surface closer to the eaves edge. Among them, the structure shown in FIG. 10A is a case where the photovoltaic power generation device 1 is simply installed at the center of the upper surface of the roof 2, and FIG. (C) shows a case where the photovoltaic power generation device 1 is installed above the drainage groove 7 called an inner gutter, and a case where the photovoltaic power generation device 1 is installed avoiding the step provided at the eaves. Is shown.

[0006] Regardless of the installation structure of any of the photovoltaic power generators as shown in Fig. 10, it is necessary to consider differently from the above-described conventional structure in treating rainwater during rainfall. . That is, when the solar power generation device is installed from the middle part of the roof surface, rainwater flowing down from the upper surface of the solar cell module installed at the lowermost stage is slate, tile, etc. existing below the solar cell module. It is necessary to provide a structure for guiding to the upper surface of the roofing material.

Conventionally, a drainage structure for guiding rainwater flowing down from the upper surface of the solar cell module to the upper surface of the roofing material at the site has been constructed. Therefore, the work for constructing the drainage structure is troublesome, requires skill, requires a long working time, and inevitably increases the cost. The lower end processing apparatus of the photovoltaic power generator of the present invention has been invented in view of such circumstances.

[0008]

According to the present invention, there is provided a photovoltaic power generator having a lower end treatment device disposed on a sloped roof surface at a position higher than a portion of the roof surface closer to the eaves edge than the eaves edge. In order to install a photovoltaic power generation device composed of a solar cell module in the form of a plate, the lower edge of the lowermost solar cell module constituting the photovoltaic power generation device and a plate-like roof material constituting the eaves portion of the roof surface To perform a watertight process between the upper edge and the upper edge. Such a lower end processing device of the photovoltaic power generator of the present invention includes an intermediate drain plate, an intermediate starter member, and a cover plate. The intermediate drain plate is fixed on the roof surface in a state of being inserted between the lower surface of the lower end portion of the lowermost solar cell module and the roof surface. Also, the intermediate starter member is
The intermediate drain plate is provided on the upper surface of a portion near the upper end of the upper surface and supports a lower edge of the lowermost solar cell module. Further, the cover plate has an upper edge coupled to a lower edge of the intermediate drain plate, and a lower lower surface covers an upper surface of an upper end of the roofing material.

[0009]

The lower end processing device of the photovoltaic power generator of the present invention configured as described above allows rainwater that has flowed further downward from the upper surface of the lowermost solar cell module to pass through the upper surfaces of the intermediate drain plate and the cover plate. It can be led to the upper surface of the roofing material located below the lowermost solar cell module. In addition, since the work of installing the intermediate drain plate, the intermediate starter member, the cover plate, and the seal member is a simple operation that can be performed according to a manual, the operation time is shortened without skill. As a result, the cost can be reduced.

[0010]

1 to 5 show a first embodiment of the present invention. In this example, like a gabled roof,
As shown in FIG. 10A, a photovoltaic power generator 1 is provided at the center of the upper surface of the roof 2 on the inclined roof 2, and the periphery (up and down and left and right) of the photovoltaic power generator 1 is This figure shows a case where the roof is covered with flat roof tiles 8, 8 or a slate. In addition, about the up-down direction, it represents in the state installed on the upper surface of the inclined roof 2.

The lower end of the lowermost solar cell module 4 of the plurality of solar cell modules 4 constituting the photovoltaic power generator 1 and the plurality of tiles provided below the photovoltaic power generator 1 8, 8 or the top tile 8 of the slate
Alternatively, the lower end processing device of the photovoltaic power generator of the present invention is installed between the upper end of the slate. Such a lower end processing device of the photovoltaic power generator according to the present invention includes an intermediate draining plate 9, an intermediate starter member 10, and a cover plate 11.
And a seal member 12 (see FIGS. 4 and 5, omitted in FIGS. 1 to 3). The sealing member 12 is provided as shown in FIGS. 4 and 5 when the roofing material is slate, but is omitted as shown in FIGS. 1 and 2 when the roofing material is the tiles 8 and 8. You may.

The intermediate draining plate 9 is made by integral extrusion of an aluminum alloy.
The lowermost solar cell module 4 is fixed to an upper surface of a field plate 13 constituting the roof 2 so as to enter under the lower end of the lowermost solar cell module 4. The top surface of the base plate 13 is entirely covered with a waterproof sheet 14 called roofing. The work of installing the waterproof sheet 14 is performed prior to the work of installing the photovoltaic power generator 1 and the roof tiles 8, 8 or the slate.

At the upper end of the intermediate draining plate 9,
A flat upper fixing plate portion 15 for fixing by screwing or nailing (via a waterproof sheet 14) on the upper surface of the base plate 13 is provided. On the other hand, a lower fixing leg 16 having a substantially J-shaped cross section is provided at the lower end of the intermediate draining plate 9 for fixing the upper surface of the base plate 13 by screwing or nailing. The upper edge of the lower fixed leg 16 and the lower edge of the fixed plate 15 are connected by a flat water guide plate 17 which is slightly bent with respect to the fixed plate 15. In addition, a ridge 18 bent upward is formed at the upper end edge of the upper fixed plate portion 15. However, the end of the ridge 18 is removed (trimmed) so that the upper surface of the end of the fixing plate 15 is flattened. Such an intermediate draining plate 9 is fixed to the upper surface of the field plate 13 such that the upper half of the fixing plate 15 enters the lower side of the lower end of the solar cell module 4.

The intermediate starter member 10 is provided on the upper surface of the intermediate draining plate 9 near the upper end of the upper surface, and supports the lower edge of the lowermost solar cell module 4. Such an intermediate starter member 10 is made by integral extrusion of an aluminum alloy.
A main portion 19 having a character shape, a locking portion 20 projecting obliquely upward from a middle portion of the upper surface of the main portion 19, and a leg portion 21 extending from the lower surface of the locking portion 20 are provided. To install the intermediate starter member 10 on the upper surface near the upper end of the upper surface of the intermediate draining plate 9, the upper end edge of the leg 21 abuts against the lower surface of the ridge 18, And the lower edge of the main portion 19 is fixed to the upper fixed plate portion 15.
Abut on the upper surface of Then, a nail or a wood screw inserted through the leg portion 21 and the upper fixing plate portion 15 is driven or screwed into the base plate 13. Accordingly, the intermediate starter member 10 is fixed to a portion near the upper end of the upper surface of the intermediate draining plate 9 and is also fixed to the upper surface of the base plate 13.

The lower end of the lowermost solar cell module 4 is supported by the intermediate starter member 10 provided on the upper surface of the intermediate draining plate 9 near the upper end in the above manner. That is, the lower frame 25 constituting the lower side of the solar cell module 4 is attached to the intermediate starter member 10.
The lower frame 25 is placed on the upper surface of the main portion 19 while being placed on the upper surface of the main portion 19 and the engagement ridge provided on the lower frame 25 is engaged with the edge of the main portion 19. I try not to come up. Note that this part is the same as the structure that has been conventionally used when the photovoltaic power generation device is installed on the roof, and a detailed description thereof will be omitted.

The upper edge of the cover plate 11 is joined to the upper surface of the lower end of the intermediate draining plate 9. Such a cover plate 11 is formed by integral extrusion molding of an aluminum alloy, and has a coupling portion 22 at the upper end for coupling to the lower end of the intermediate draining plate 9 and a bent portion bent downward at the lower end. Each of the holding portions 23 is provided, and the sealing member 12 made of an elastic material such as urethane foam is provided on the lower surface of a portion excluding the connecting portion 22 as necessary. In order to connect the upper end of the cover plate 11 to the upper surface of the lower end of the intermediate draining plate 9, a tapping screw 24 inserted through a plurality of through holes provided in the coupling portion 22 is attached to the lower end of the intermediate draining plate 9. Is screwed and tightened on the upper part of the lower fixed leg 16 provided in the above.

The lower surface of the seal member 12 installed on the lower surface of the cover plate 11 provided on the lower side of the intermediate draining plate 9 in this manner has a plurality of lower surfaces installed on the lower side of the solar power generator 1. Of the roof tiles 8, 8 or the slate, the uppermost roof tile 8 or the upper end of the slate is pressed by the elasticity of the cover plate 11. However,
When the roofing material is the tiles 8, 8, as shown in FIGS. 1 and 2, only the lower edge of the cover plate 11 is turned up to provide a rain return portion, and even if the sealing member 12 is omitted. good. Since the seal member 12 is made of an easily deformable elastic material such as urethane foam, the seal member 12 closes a gap between the upper surface of the upper end of the roof tile 8 or the slate and the lower surface of the cover plate 11. Thus, even if the rainwater existing on the roof 8 or the slate is pushed by the wind, the rainwater is prevented from entering the lower side of the cover plate 11. In the illustrated example, a waterproof sheet 14, 14 is double-stretched on the lower part of each of the tiles 8, 8, or the slate, and the waterproof property of the lower part of each of the tiles 8, 8, or the slate is provided. Is being improved. In addition, tiles 8 and 8
When a sealing member is used, it is preferable to match the shape of the lower surface of the sealing material with the shape of the upper surface of the upper end surface of the tiles 8. Alternatively, mortar may be used instead of the sealing member, and the upper surfaces of the upper ends of the roof tiles 8, 8 and the cover plate 11
The gap between the lower end and the lower surface can be closed.

Further, in the case of this embodiment, an internal drain plate 26 is provided on the upper edge of the locking portion 20 which projects obliquely upward from the middle portion of the upper surface of the main portion 19 constituting the intermediate starter member 10. At the lower edge. The internal draining plate 26 is formed by integral extrusion of an aluminum alloy. A fixing portion 27 for fixing the upper surface of the base plate 13 to the upper surface of the base plate 13 with a nail or a wood screw is provided at an upper portion of the lower surface near the lower end. A holding portion 28 for locking to the upper edge of the stop portion 20 is formed.

The internal draining plate 26 is combined with the holding portion 28 such that the upper end of the locking portion 20 is inserted into the holding portion 28, and fixes the fixing portion 27 to the upper surface of the base plate 13. Then, a waterproof tape 29 is attached between the upper upper surface of the internal draining plate 26 and the upper surface of the waterproof sheet 14. Further, through holes 30 are provided at a plurality of locations in the lower half of the locking portion 20 (portion closer to the lower end than the branch portion of the leg portion 21), and the lower half of the main portion 19 (the locking portion 20). Notches 31 are respectively provided at a plurality of locations (parts closer to the lower end than the branch portion). The through holes 30 and the cutouts 31 have a function of flowing rainwater flowing on the upper surface of the internal drainage plate 26 and reaching the upper surface of the locking portion 20 to the upper surface of the intermediate drainage plate 9.

That is, the rainwater that has entered the lower side of the solar cell module 4 for some reason, such as strong spraying during a strong wind or rain, causes the waterproof sheet 14, the waterproof tape 29, and the waterproof tape 29 provided on the upper surface of the base plate 13. It flows on the upper surface of the internal drain plate 26 and reaches the upper surface of the locking portion 20.
The rainwater that has reached the upper surface of the locking portion 20 in this way flows down through the through hole 30 to the upper surface of the upper end portion of the intermediate drainage plate 9, and further passes through the notch 31 to lower the upper surface of the intermediate drainage plate 9 downward. It flows and is discharged through the upper surface of the cover plate 11 to the upper surface of each of the roof tiles 8, 8 or the slate. The through hole 30 and the notch 31 are
The space 32 existing between the lower surface of the solar cell module 4 and the upper surface of the base plate 13 communicates with the external space, and outside air is introduced into the space 32 to suppress a rise in the temperature of the space 32, It also has the role of preventing the power generation efficiency of the solar cell module 4 from being reduced.

Further, in the illustrated example, a draining member 33 is provided between the solar cell module 4 and the roof tiles 8, 8 or slate adjacent in the horizontal direction, and the solar cell module 4 and the roof tiles 8, 8 or slate are connected to each other. Along the boundary of the vertical direction. The draining member 33 is made by integral extrusion of an aluminum alloy, and is fixed to the upper surface of the base plate 13 with nails, wood screws, or the like.
4 and a pair of partition walls 35a, 35b provided on the upper surface of the substrate portion 34 at intervals. or,
On the upper surface of the substrate portion 34, these two partition walls 35a, 35b
A pair of ridges 36, 36 are formed at a part separated from the ridges at a distance from each other. A packing member (not shown) made of an elastic material such as urethane foam is adhered to the locking groove between the ridges 36.

The lower end of the water draining member 33 as described above is superimposed on the upper surface of the end of the upper fixing plate 15 constituting the intermediate draining plate 9 via a seal plate 37 made of an elastic material such as rubber. The substrate portion 34 and the upper fixed plate portion 15 are connected to each other while maintaining watertightness. or,
A sealing member 38 made of an elastic material such as urethane foam is sandwiched between an edge of the main portion 19 constituting the intermediate starter member 10 and a side surface of one of the partition walls 35a. The end portion and the lower end portion of the draining member 33 are kept watertight.

The solar cell module 4 is installed such that the widthwise edge of the solar cell module 4 is located between the pair of partition walls 35a and 35b with respect to the above-described draining member 33. A hanging wall provided at a side edge of a vertical frame (not shown) constituting a vertical side of the solar cell module 4 is inserted between the pair of partition walls 35a and 35b. Therefore,
The rainwater flowing down from the width-direction edge of the solar cell module 4 is disposed outside the one partition wall 35a (between the pair of partition walls 35a and 35b), and the substrate portion 34 forming the drain member 33 is provided. Flow down to the upper surface. Then, it flows on the upper surface of the substrate portion 34, reaches the upper surface of the intermediate draining plate 9, and passes through the cover plate 11 to the upper surface of each tile 8, 8 or slate provided below the solar power generation device 1. Is discharged.

On the other hand, the side edge of each of the tiles 8, 8 or the slate provided adjacent to the side of the solar power generation device 1 is outside the other partition wall 35b, Are disposed above the ridges 36, 36. A packing member installed between the pair of ridges 36, 36 is sandwiched between the lower surface of the end of each of the roof tiles 8, 8 or the slate and the upper surface of the substrate portion 34. Watertightness is maintained between the lower surface of the end of each tile 8, 8 or the slate and the upper surface of the substrate portion 34.

Further, the lower half of the intermediate drain plate 9 (the lower fixed leg 16 and the water guide plate 17) and the end of the cover plate 11 are covered with an end cover 39. The end cover 39 is made by injection-molding a synthetic resin. By covering the ends of the members 9 and 11, the lower surface of the members 9 and 11 and the upper surface of the base plate 13 are connected. Prevents rainwater from entering the space between them.
In the illustrated example, a support portion 40 for supporting the roof tile 8 or a part of the slate is provided on the outer half of the end cover 39.

The lower end processing device of the photovoltaic power generator of the present invention having the above-described configuration is provided with the lowermost solar cell module 4.
Rainwater that has flowed further downward from the upper surface of the roof can be discharged through the upper surfaces of the intermediate drain plate 9 and the cover plate 11 to the upper surface of the tile 8 or slate below the lowermost solar cell module 4. Since a gap between the lower lower surface of the cover plate 11 and the upper surface of the roof 8 or the upper end of the slate is closed by the seal member 12, rainwater existing on the upper surface of the roof 8 or the slate is not removed. Even when pushed by the wind, the rainwater does not enter the lower side of the cover plate 11. Even when the seal member 12 is not provided, the ridge formed on the upper surface of the upper end of the roof tile and the rain return portion formed on the lower edge of the cover plate 11 constitute a labyrinth seal. It does not enter the lower side of the plate 11.

The work of installing the intermediate draining plate 9, the intermediate starter member 10, the cover plate 11, and the seal member 12 is a simple operation that can be performed according to a manual. Without need
Work time can be shortened, and costs can be reduced. still,
Each of the members 9 to 12 is previously processed into a required size and shape at a factory.

FIGS. 6 to 8 show a second embodiment of the present invention corresponding to claims 1 to 4. FIG. In the case of the first example described above, the solar power generation device 1
As a roofing material for covering the portion deviated from the above, a Western-style flat tile or a slate which is a simple flat plate is used, whereas in the case of this example, a corrugated Japanese tile 41 is used. .
According to the use of such a roof tile 41, this roof tile 4
A thick seal member 12a for closing a gap between the upper surface of the upper end portion 1 and the lower surface of the lower end portion of the cover plate 11a is used to improve familiarity. Preferably, the lower surface shape of the seal member 12a is
1 is adapted to the shape of the upper surface of the upper end. In the case of this example, the cover plate 11a and the intermediate draining plate 9a are formed integrally by bending a metal plate.
Also, the lower end of the cover plate 11a is
The lower end of the cover plate 11a is prevented from being lifted by being coupled to a leg piece 42 previously fixed to the upper surface of the cover plate 11a. The configuration and operation of the other parts are the same as in the case of the above-described first example, and a duplicate description will be omitted.

[0029]

The apparatus for processing the lower end portion of a photovoltaic power generator according to the present invention is constructed and operated as described above. It can be done easily without requiring. Therefore, the cost of the solar thermal power generation device can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a first example of an embodiment of the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a view taken in the direction of arrow B in FIG. 2;

FIG. 4 is a perspective view showing the same parts as those in FIG. 3 in an assembled state;

FIG. 5 is a perspective view showing a state before assembling.

FIG. 6 is a longitudinal sectional side view showing a second example of the embodiment of the present invention.

FIG. 7 is an enlarged view of a portion C in FIG. 6;

FIG. 8 is a view taken in the direction of arrow D in FIG. 7;

FIG. 9 is a perspective view showing an installation state of a conventional solar power generation device.

FIG. 10 is a schematic plan view showing three examples of a state in which a photovoltaic power generation device provided with a lower end processing device according to the present invention is installed on a roof surface.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar power generation device 2 Roof 3 Solar cell 4 Solar cell module 5 Upper drain plate 6 Drain part 7 Drainage groove 8 Tile 9, 9a Intermediate drain plate 10 Intermediate starter member 11, 11a Cover plate 12, 12a Seal member 13 Field plate 14 Waterproof sheet 15 Upper fixed plate part 16 Lower fixed leg part 17 Water guide plate part 18 Ridge 19 Main part 20 Lock part 21 Leg part 22 Joining part 23 Bend holding part 24 Tapping screw 25 Lower frame 26 Internal drain plate 27 Fixed Part 28 holding part 29 waterproof tape 30 through hole 31 notch 32 space 33 draining member 34 substrate part 35a, 35b partition wall 36 ridge 37 seal plate 38 seal material 39 end cover 40 support part 41 Japanese tile 42 leg piece

Claims (5)

[Claims] 1. A solar power generation device comprising a plate-like solar cell module is installed on a sloped roof surface at a position higher than a portion of the roof surface located above the eave tip edge. A watertight process is performed between the lower edge of the lowermost solar cell module constituting the photovoltaic power generator and the upper edge of a plate-like roof material constituting the eaves portion of the roof surface.
A lower end processing device of the photovoltaic power generation device, wherein an intermediate drain plate fixed on the roof surface in a state of being inserted between the lower surface of the lower end portion of the lowermost solar cell module and the roof surface, An intermediate starter member provided on the upper surface of the upper portion of the upper surface of the intermediate drain plate and supporting a lower edge of the lowermost solar cell module; and an upper edge connected to a lower edge of the intermediate drain plate; And a cover plate for covering the upper surface of the upper end of the roofing material. 2. The lower end treatment device for a photovoltaic power generator according to claim 1, wherein the intermediate drain plate and the cover plate are integrated. 3. A drainer plate, an intermediate starter member, and a cover plate are provided on an upper surface of a waterproof sheet covering an entire surface of a base plate for forming a roof surface, and a part of the intermediate starter member is provided with a solar cell. A lower edge of the internal drain plate is locked to an upper edge of a locking portion provided between a lower surface of a lower end portion of the module and an upper surface of the waterproof sheet. To allow the rainwater that has reached the upper surface of the locking portion to flow down to the upper surface of the intermediate drain plate, and to introduce outside air into the space existing between the lower surface of the solar cell module and the upper surface of the field plate. The sunlight according to any one of claims 1 to 2, wherein a through hole or a notch is provided, and a waterproof tape is stuck between an upper upper surface of the inner drain plate and an upper surface of the waterproof sheet. Departure The lower end processing unit of the electric device. 4. A draining member in which a photovoltaic power generation device is provided partially in the width direction of a roof surface, and has a partition wall on an upper surface between a solar cell module and a roof material that are horizontally adjacent to each other. Are arranged in the up-down direction, the lower end of the drainer is superimposed on the upper surface of the end of the intermediate drainer, and the rainwater flowing down from the edge in the width direction of the solar cell module is separated from the partition wall. The lower end processing device of the photovoltaic power generator according to any one of claims 1 to 3, wherein the lower portion also flows down to the upper surface of the draining member on the outside. 5. The sunlight according to claim 1, wherein a seal member made of an elastic material is provided on a lower lower surface of the cover plate to close a gap between the lower lower surface and an upper surface of an upper end of the roofing material. The lower end processing unit of the power generator.