JP2000345668A - Solar cell module supporting device, and solar cell power generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell module support device capable of providing a snow-stop part according to the installation condition at a low cost, and improving the maintainability. SOLUTION: This solar cell module support device having frames on the periphery of a module body 31 in which a plurality of solar cell modules 18 are horizontally installed on a roof in a row comprises a plurality of bar-like support members 16, 17, and these members comprise a base 21, and a cover 22 provided on the base 21 in an attachable/detachable manner and integrated with a snow-stop part 30. The frame on the ridge side or the eaves side of each solar cell module 18 arranged in the horizontal direction is placed on the base 21, and the cover 22 is arranged so as to hold the frame between the cover and the base 21. Even after the installation on a roof, the cover 22 having the snow-stop part 30 can be attached/detached to/from the base 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device used for installing a plurality of solar cell modules on a roof or the like, and a solar cell power generation device including the support device and each of the solar cell modules. .

[0002]

2. Description of the Related Art Solar cell power generation devices are generally installed on a roof. Since the light incident surface of each solar cell module provided in this device is made of a transparent glass substrate, snow on the solar cell power generation device easily slides down at once when snow melts.

A solar cell roof capable of preventing such a situation is known from Japanese Patent Application Laid-Open No. Hei 8-13725.
In this publication, a snow stopper is provided on a frame provided in each solar cell module. Specifically, the frame of the frame disposed on the roof inclination direction upper side of another solar cell module adjacent to the roof inclination direction lower side of the frame portion of the frame disposed on the roof inclination direction lower side of the solar cell module. A cover portion that covers the portion is provided integrally, and an extension portion is extended from the cover portion toward the upper side in the roof inclination direction in parallel with the upper surface of the frame portion, and the extension portion is used as a snow stopper.

[0004]

By the way, when snow stoppers are used, the position of the snow stoppers or the position of the snow stopper is determined according to the amount of snowfall that varies depending on the area, or the installation conditions such as the arrangement and installation area of the solar cell modules or the inclination of the roof. It is desired that the shape, strength and the like of the snow stopper are made appropriate.

However, since the solar cell module has a structure in which frames are provided on the four circumferences of the module body and adjacent frames are connected to each other, in order to satisfy the above demand, the lower side of the roof in the tilt direction is required. It is necessary to cope with the whole frame part arranged in the, and if it is going to prepare various snow stoppers, it is necessary to prepare a frame part having a snow stopper part for each type integrally, There is a problem that the cost increases.

It is also conceivable that the snow stopper may be deformed due to the weight of snow, etc. In such a case, when repairing, the frame of the solar cell module is disassembled to replace the frame having the snow stopper integrally. Therefore, there is a problem that the work is troublesome and the maintainability is not good.

In addition, since the snow stopper is formed integrally with the frame and extends not only in the longitudinal direction of the frame but also in the ridge direction, the rainwater flows in the direction of the eaves to stop the snow. Not only do the rainwater guided along the snow stoppers collectively drain from both ends of the solar cell generator in the column direction, but also dust accumulates on the ridge side of the snow stoppers. There is a problem that plants are liable to grow, such as moss growing there, and the solar cell module is likely to be adversely affected.

[0008] The first problem to be solved by the present invention is:
It is an object of the present invention to provide a solar cell module support device and a solar cell power generation device that can provide a snow stopper according to installation conditions at low cost and can improve maintainability.

A second problem to be solved by the present invention is as follows.
In order to solve the first problem, it is an object of the present invention to provide a solar cell module support device and a solar cell power generation device that can prevent plants from being rooted around a snow stopper.

[0010]

According to a first aspect of the present invention, there is provided a solar cell module supporting apparatus, comprising: a plurality of solar cell modules each including a frame on four sides of a module body; In a solar cell module support device installed in a row on a roof, a base on which the frame on the ridge side or eaves side of each of the solar cell modules arranged in a row is mounted, and is detachably provided on the base. And a cover arranged so that the frame on the ridge side or the eave side is sandwiched between the base and the base, and a snow stopper is integrally provided on the cover.

In the present invention and the following inventions, an extruded or drawn material of an aluminum alloy or other metal, a molded material made of a synthetic resin, or a composite material thereof can be used for the base and the cover. The structure for attaching the cover to the base may be any structure as long as the cover can be attached and detached after installation, and is not limited to the embodiment described below, and may be attached using a fixing tool such as a removable screw. Is also good. Further, as a cell included in the module main body included in the solar cell module, an amorphous cell or a crystal cell such as a single crystal and a polycrystal can be used.

In the invention of claim 1 and each of the following inventions, the supporting device supports the ridge side and the eave side of the solar cell module and installs the solar cell module on the roof. And since this supporting device is not a single structure, but includes a base fixed to the roof and a cover detachably mounted on the base and having a snow stopper, the supporting device is installed on the roof. Even in the state, the snow stopper can be attached and detached as a result by attaching and detaching the cover to and from the base. Therefore, it is possible to prepare various covers integrally having different snow stoppers from each other, select a cover with a snow stopper according to the installation condition of the solar cell module from among them, and combine it with the base, The base may be a common component for various covers having integrally different snow stoppers. Since the cover having the snow stopper integrally does not constitute the framework of the solar cell module, the maintenance of the snow stopper does not require disassembly and assembly of the framework of the solar cell module. It can be handled simply by attaching and detaching the cover.

[0013] In order to solve the second problem, the invention according to claim 2 depends on the invention according to claim 1, wherein the snow stopper is provided in a row direction of the solar cell modules, and the snow stopper is provided on the snow stopper. A plurality of discharge units are provided at intervals along the row direction. In the present invention, the snow stopper has a plurality of discharge portions,
As rainwater can be passed downward through each discharge portion, dust blocked by the snow stopper can be easily washed away through each discharge portion.

According to a third aspect of the present invention, there is provided the solar cell power generation apparatus according to the first or second aspect, wherein a plurality of solar cell modules each including a frame on four circumferences of the module main body, and the modules are installed in a row on a roof. And the above-described solar cell module support device.

According to the third aspect of the present invention, since the supporting device for supporting the solar cell module on the roof includes the cover with the snow stopper attached to and detached from the base with the base as a common component as described above, And it is possible to respond without having to change the support device according to the maintenance of the snow stopper,
It is easy to adapt to installation conditions, and has high maintainability,
An inexpensive solar cell power generator can be provided.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 schematically shows a state where a solar cell power generation device according to one embodiment is installed on a roof. In the figure, reference numeral 11 denotes a metal sheet roof, for example, a roof with a tiled roof. 1
Numeral 2 denotes a roofing field plate and a metal plate, numeral 13 denotes a roof tile, and arrow A in FIG. 1 denotes an eaves side and arrow B denotes a ridge side.

The solar cell power generation device 15 installed on the roof 11 includes a solar cell module support device including two types of support members 16 and 17, and a plurality of solar cell module support devices supported by the support device and arranged in an array. , And a cable (not shown) provided to connect to these modules 18.

The rail-shaped support members 16 and 17 are installed on the roof 11 at right angles to the roofing bar 13 and in parallel with each other at a predetermined interval. The first support members 16 arranged as end rails at positions closest to the eaves side and the ridge side have the same structure and are arranged symmetrically. Second
The supporting member 17 is a pair of supporting members 16 as an intermediate rail.
It is installed in between.

As shown in FIG. 2, the first and second support members 16 and 17 each include a base 21 and a cover 22.
And module connecting means 23. The base 21 and the cover 22 are made of a mold material obtained by extruding an aluminum alloy or the like.

As shown in FIG. 2 and FIG.
Is a module support 24 and a groove-like cable storage 25
And is fixed on the roof 11 by wood screws 19 that are screwed into the roof 11 with a base sheet 26 such as a rubber plate sandwiched between the roofing tiles 13. The module support 24 has an opening 24b extending continuously in the longitudinal direction at the center in the width direction of the ceiling wall 24a, and forms an edge of the opening 24b and projects vertically from the inner and outer surfaces of the ceiling wall 24a. And a pair of ridges 24d projecting downward from the inner surface of the ceiling wall 24a with the flanges 24c interposed therebetween. The opening 24b is used as a passage when the wood screw 19 is screwed.

In FIG. 3, reference numeral 24e denotes a tapping hole, and end plates (not shown) which are respectively disposed so as to close the openings at both ends of the first support member 16 by a self-tapping screw (not shown) screwed into the hole. Ceiling wall 2
At least one of the ceiling wall portions located on both sides of the opening 24b among the 4a is used as a module installation wall, and the solar cell module 18 is supported from the back side by fixing the solar cell module 18 on this portion. It is supposed to be. The cable (not shown) is housed and wired in the cable housing 25.

The module connecting means 23 comprises a pressing member 27 made of metal such as aluminum alloy, a nut plate 28 made of metal such as stainless steel, and a connecting bolt 29. On the lower surface of the holding member 27, a spigot projection 27a that fits into the opening 24b is integrally provided, and on the upper surface, a pair of locking claws 27b is integrally provided. The holding member 27 is positioned with the spigot projection 27a fitted in the opening 24b and positioned on the ceiling wall 24a.
Is positioned at the lower end of the opening flange 24c and is positioned in the module support 24, and the pressing member 27 and the nut plate 28 are inserted through the pressing member 27. Nut plate 2
The module support 24 is attached to the ceiling wall 24a side by tightening a connection bolt 29 screwed to the module support 8.

The cover 22 has a cover projection 22a extending parallel to the bottom wall of the support member 16 or 17, and a pair of engagement walls 22b projecting toward the ceiling wall 24a of the module support 24.
And These engagement walls 22b have claw portions at their tips. The cover 22 of the support member 16 has one cover protruding edge 22a because the support member 16 is used as an end rail, and the cover 22 of the support member 17 is opposite to the cover 22 because the support member 17 is used as an intermediate rail. It has a pair of protruding edges 22a that project in the direction.

These covers 22 are provided on the module supports 2.
4 so as to cover the ceiling wall 24a of the
b are hooked on the locking claws 27b and mounted on the module supports 24, and cover and hide the module connecting means 23. Each cover 22 applies an upward external force to the locking claw 27 by utilizing the elastic deformation of the engaging wall 22b.
b can be disengaged. That is, each cover 22
Is detachable from the base 21. In FIG. 3, reference numeral 24f denotes a support member 16 for positioning the cover 22.
These are positioning grooves provided only in the module support 24 of FIG.
Further, the cover attaching means for attaching and detaching the cover 22 to and from the base 21 is not limited to the above-mentioned claw engagement. For example, a plurality of screw holes are provided in the holding member 27, and a lower wall of the engaging wall 22 b is integrally connected, and a fixed wall portion overlapping the upper surface of the holding member 27 is provided in the cover 22. Then, a detachable screw is screwed into the screw hole, so that the cover 2 is attached to the base 21 via the holding member 27.
2 may be detachably attached, in this case,
The hole in the upper surface wall of the cover 22 through which the screw passes may be closed with a rubber plug or the like that can be removed later.

Since the supporting members 16 and 17 are provided with the cover 22, the upper structure of the module support 24, the frame 33 of the solar cell module 18, and the like can be visually recognized from the appearance of the solar cell module supporting device and the solar cell power generating device 15. And the appearance can be improved, and stagnation of dust, dirt, and the like on the upper feature structure on the module support portion 24 can be prevented. In particular, the cover 22 of the second support member 17 as an intermediate rail can prevent stagnation of dust and dirt in gaps between adjacent solar cell modules in the ridge / eave direction.

Any one of the support members, for example, the support member 1
7, a snow stopper 30 extending in the longitudinal direction of the cover 22 is integrally provided. The cover 22 of the support member 17 having the snow stopper 30 is arbitrarily selected from a plurality of types. FIG. 4 shows, for example, three types of covers 22 as selection targets.

That is, the cover 22 shown in FIG.
Is a cover provided with a snow stopper 30 formed so as to be bent at a right angle from the tip of the cover projection 22a protruding toward the ridge side, for example. Discharge holes 30a are provided at intervals. The present embodiment is an example in which the cover 22 is employed (see FIGS. 2 and 3). The cover 22 shown in FIG. 4B also has, for example, a cover protruding edge 22 protruding toward the ridge side.
a cover provided with a snow stopper 30 formed so as to be bent at a right angle from the front end of the snow stopper 3.
Discharge grooves 30b are provided at 0 at intervals along the longitudinal direction. The cover 22 shown in FIG. 4C is, for example, a tip of a cover protruding edge 22a protruding toward the ridge side, for example, in a forward direction with respect to the flow of rainwater or the like flowing down on the solar cell power generation device 15. This is a cover provided with a snow stopper 30 formed obliquely so as to fall down to the eaves side, and the height of the snow stopper 30 is the snow stopper 3 shown in FIGS.
Lower than 0. The structure of each of the three types of covers 22 except for the snow stopper 30 is the same. Also,
When a discharge portion such as the discharge hole 30 a or the discharge groove 30 b is provided in the snow stopper 30, the shape, size, interval, height, and the like can be arbitrarily set, and may be provided anywhere on the upper surface wall of the cover 22. .

The solar cell module 18 is a rectangular module body 31 having integrated cells and electrodes.
And the frames 3 attached to the four circumferences of the main body 31, respectively.
2, 33. The number and arrangement of the cells constituting the module main body 31 or the type of the cells (crystalline or amorphous) are arbitrary and are not particularly limited, but in the present embodiment, the amorphous cells are used. ing.

As shown in FIG. 2 and FIG.
Reference numerals 2 and 33 are made of a mold material obtained by extruding an aluminum alloy or the like. A pair of frames 33 attached to the shorter side edge of the module main body 31 disposed on the ridge side or the eave side has a tapping hole 33a,
By screwing a self-tapping screw (not shown) through the ends of a pair of frames 32 attached to the longer side edge of the module body 31, the adjacent frames 32, 33 are connected to each other to form a frame 3a. .

The height of each of the frames 32 and 33 is greater than the thickness of the module main body 31, and a groove-shaped fitting portion 34 is provided at the upper end thereof. The edges are fitted and mounted. Further, each of the frames 32 and 33 has a bottom wall 36 mounted on the ceiling wall 24a of the module support 24.

In the solar cell module 18 having the above structure, the module connecting means 23 is connected to the module 33 with the bottom wall 36 of the frame 33 placed on the ceiling wall 24a of the module support 24 of the base 21 already fixed to the roof 11. By being assembled, it is fixed on the module support 24.

That is, the bottom wall 36 of the frame 33 of the solar cell module 18 is placed on the ceiling wall 24a of the module support 24 of the adjacent support members 16 and 17, and is disposed over these. In this case, the solar cell module 18 to be set can be positioned by applying an upwardly projecting ridge 36a rising from the bottom wall 36 of the frame 33 to the upper part of the opening flange 24c. Next, the connection bolt 29 of the module connection means 23 is tightened. Since the pressing member 27 is pressed against the upwardly projecting ridge 36a by this tightening, the bottom wall 36 of the frame 33 is sandwiched between the pressing member 27 and the ceiling wall 24a. Finally, each support member 16, 17
The cover 22 is attached to each of the module supports 24 from above to cover and hide the module connecting means 23,
The frame 33 of the solar cell module 18 is covered and covered by the cover protruding edge 22 a of the cover 22. As described above, the solar cell power generation device 15 can be installed on the roof 11 as shown in FIG.

As described above, the intermediate support member 17 of the support members 16 and 17 provided in the solar cell power generation device 15 installed on the roof 11 has the snow stopper 30 integrally provided on the cover 22 thereof. The snow stopper 30 can prevent the snow on the solar cell power generator 15 from slipping off at the same time during snow melting.

The supporting members 16 and 17, which constitute the solar cell module supporting device for supporting the solar cell module 18 on the roof 11, are not a single structure as described above, but are fixed to the roof 11 with wood screws 19. In addition, a base 21 for supporting the solar cell module 18 via the module connecting means 23 and a cover 22 detachable on a module support 24 of the base 21 are provided, so that the present supporting device is installed on the roof 11. Even in the state, the cover 22 can be attached to and detached from the base 21.

Since the snow stopper 30 is provided integrally with the cover 22 of the support member 17 at the intermediate position, the snow stopper 30 is attached and detached by attaching and detaching the cover 22 to and from the base 21. it can. Therefore, FIG.
As illustrated in (C), various covers 22 integrally having different snow stoppers 30 are prepared and placed in advance.
It is possible to arbitrarily select the cover 22 with the snow stopper 30 according to the installation conditions of the solar cell module 18 from these and combine it with the base 21.

Therefore, the base 21 can be used as a common component for the various covers 22 integrally having different snow stoppers 30, and the cover 22 integrally having the snow stoppers 30 is a cover for the solar cell module 18. Since the frame does not constitute a framework, the maintenance of the snow stopper 30 does not require disassembling and assembling the framework of the solar cell module 18, but simply attaches and detaches the cover 22 on the module support 24 of the base 21. Can respond.

As described above, the solar cell power generator 1 having the above configuration
According to No. 5, since it is not necessary to change the entire supporting devices 16 and 17 in accordance with the installation conditions and the maintenance of the snow stopper 30, it is possible to cope with the installation conditions easily and inexpensively. The maintainability with respect to the breakage of the unit 30 and the performance change can be improved.

When the cover 22 shown in FIG. 4A or FIG. 4B is selected and adopted, the snow stopper 30 is formed as a discharge hole 30a or a discharge groove 30b as a discharge portion.
Are provided at intervals in the column direction of the solar cell module 18, so that the rainwater flowing down along the upper surface of the solar cell power generation device 15 is less likely to be blocked and the rainwater can flow down through the discharge unit. it can. Accordingly, rainwater is not concentrated and discharged from both ends of the snow stopper 30 in the longitudinal direction, and even if dust or the like obstructed by the snow stopper 30 accumulates, it easily flows out. be able to. Therefore, dust is collected and accumulated on the ridge side of the snow stopper 30, and moss and plants grow there, and the solar cell power generator 1
5 can be reduced.

In the case where the cover 22 shown in FIG. 4C is selected and employed, it is not possible to deny that the snow stopper 30 blocks a certain degree of dust.
Does not protrude in the ridge direction, but is inclined forward with respect to the flow of rainwater to the eaves side, so it has little action to block rainwater. Accordingly, as the rainwater can easily flow over the snow stopper 30, the dust and the like that are blocked by the snow stopper 30 and stay on the ridge side can easily flow out. Proliferation of moss and plants around is suppressed, and the possibility of adversely affecting the solar cell power generation device 15 can be reduced.

[0041]

The present invention is embodied in the form described above and has the following effects.

According to the solar cell module supporting device of the first aspect of the present invention, the base fixed to the roof can be a common part for various detachable covers integrally having different snow stoppers. The snow stopper can be provided at low cost according to the conditions, and the snow stopper can be maintained without the need to disassemble and assemble the framework of the solar cell module, so that the maintainability can be improved.

According to the solar cell module supporting device according to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the rainwater is hardly interrupted by the snow stopper, and the rainwater is easily drained toward the eaves. With this, the dust blocked on the ridge side of the snow stopper can be discharged, so that it is possible to improve the rooting of plants around the snow stopper.

According to the photovoltaic power generator according to the third aspect of the present invention, as described above, the base is used as a common component and the cover with the snow stopper is attached to and detached from the base. In addition, it is possible to provide an inexpensive solar cell power generator with high maintainability.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a state where a solar cell power generation device according to an embodiment of the present invention is installed on a roof.

FIG. 2 is a cross-sectional view of the solar cell power generation device taken along the line ZZ in FIG.

FIG. 3 is an enlarged sectional view showing a part of the solar cell power generation device shown in FIG. 2;

FIGS. 4A to 4C are perspective views each showing a part of a different type of cover that can be selectively used for a module support device included in the solar cell power generation device according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Roof 15 ... Solar cell power generation apparatus 16, 17 ... Support member (solar cell module support apparatus) 18 ... Solar cell module 21 ... Base 22 ... Cover 22a ... Engagement wall (cover attaching means) 23 ... Module connecting means 27 ... Locking claw (cover attaching means) 30: snow stopper 30a: discharge hole (discharge part) 30b: discharge groove (discharge part) 31: module body 32, 33: module frame

Claims (3)

[Claims] 1. A solar cell module supporting apparatus in which a plurality of solar cell modules each having a frame around four circumferences of a module main body are arranged in a row on a roof, and a ridge or eaves of each of the solar cell modules arranged in a row is provided. A base on which the frame on the side is mounted, and a cover which is detachably provided on the base and which is arranged so as to sandwich the frame on the ridge side or the eaves side with the base. A solar cell module supporting device, wherein a snow stopper is integrally provided on a cover. 2. The snow stopper is provided in a row direction of the solar cell module, and the snow stopper is provided with a plurality of discharge portions at intervals along the row direction. 3. The solar cell module supporting device according to item 1. 3. A solar cell module supporting apparatus according to claim 1, wherein a plurality of solar cell modules each including a frame on four circumferences of the module main body, and the modules are installed in a row on a roof. A solar cell power generator characterized by the above-mentioned.