JPH07202239A - Installation method of roof-mount solar battery - Google Patents

Abstract

PURPOSE:To provide a method for installing a roof-mount solar battery which can install along a shape of a roof despite a bent of the roof and an unevenness of a roof tile. CONSTITUTION:The method for installing a roof-mount solar battery comprises the steps of mounting a plurality of solar battery panels 11 electrically connected to a pair of base supporting trestles 13, 13 installed on a roof to form a base unit, coupling the trestles 13, 13 of the plurality of the base units installed on the roof with screw fastening elements by using a coupling member 18, vertically position-regulating the base units, and then fastening the both.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a roof-mounted solar cell, and more particularly to a method for installing a roof-mounted solar cell device that can be installed on an existing roof of a general house.

[0002]

2. Description of the Related Art Solar cells, which directly convert light energy into electric energy, are in the limelight because depletion of energy resources is a problem because inexhaustible sunlight is the main energy source.

When this solar cell is used as a household power source, if the power consumption of a normal household is assumed, and if the conversion efficiency of the solar cell is 10%, a light receiving area of 30 m ² is sufficient. The light receiving area of this solar cell is an area that can be sufficiently applied to the roof of a normal house.

Therefore, Japanese tile-shaped solar cell devices and slate tile-shaped solar cell devices such as those disclosed in JP-A-60-31259 have been proposed. This type of tile-shaped solar cell has the advantage that it does not require any laying equipment such as a pedestal because it suffices to be laid in place of existing roof tiles.

[0005]

However, when the roof tile-shaped solar cell device described above is to be laid on an existing roof, the roof tile that has already been laid is removed, and then the tile-shaped solar cell device is laid. I have to do some construction. Therefore, it takes a lot of time and labor for the laying work, which is not preferable for the existing roof.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a method for installing a roof-mounted solar cell device which can be easily installed on an existing roof.

Another object of the present invention is to provide a method for installing a roof-mounted solar cell device, which facilitates assembly and installation workability.

An object of the present invention is to provide a method for installing a roof-mounted solar cell device which can be installed along the shape of a roof regardless of the curved roof and the uneven roof tile.

[0009]

According to the method for installing a roof-mounted solar cell of the present invention, a plurality of solar cell panels electrically connected to each other are mounted on a pair of base support frames installed on the roof. It is characterized in that a basic unit is created, and a plurality of basic units mounted on the roof are connected to each other by using a connecting member between the base support mounts to install the solar cell device on the roof.

Further, the base support frame and the connecting member may be connected by using a screw fastening element, and the basic units may be vertically aligned with each other and then fixed to each other.

Further, the base support frame is composed of a pair of U-shaped cross-sections arranged in parallel at a predetermined interval so that the non-opening portions face each other, and the solar cell panel has a cross section. A plurality of solar cell modules are fixed to a pair of U-shaped panel connecting members, the opening of the gantry and at least the end opening of the connecting member are arranged in the same direction, and both are screwed on the opening side. It may be configured to be fixed by a fastening member.

[0012]

According to the method for installing a roof-mounted solar cell device of the present invention, a plurality of basic units each having a plurality of solar cell panels electrically connected to each other are mounted on a base support frame installed on the roof. The solar cell devices can be easily installed by simply connecting them individually without the need to replace the existing roof.

Further, by connecting a plurality of units with a connecting member, it is possible to install an optimum roof-mounted solar cell device corresponding to the shape of the roof and the required light receiving area.

Further, since the units are connected to each other by the connecting member so that the positions thereof can be adjusted in the vertical direction, the solar cell device can be installed along the shape of the roof.

Further, since the opening of the gantry and at least the end opening of the panel connecting member are arranged in the same direction, the operator can easily assemble the both with the screw fastening element on the opening side. , The workability of assembly is improved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention. In the following description, the term “front” refers to FIG.
In the gable roof 21 shown in (1), the eaves side of the surface on which the solar cell device 20 is installed and the rear side are the eaves side.

FIG. 1 is a perspective view showing a roof-mounted solar cell device installed on the roof of an existing house, FIG. 2 is a perspective view showing a main part of this roof-mounted solar cell, and FIG. It is a top view which shows the roof installation type solar cell apparatus installed on the roof of the house.

On the roof tile 22 of the roof 21 facing the south side, a pair of base support racks 13 having a U-shaped cross section are parallel to each other with a space in the front-rear direction, and the non-opening portions face each other. It is arranged as follows. A protective material 14 made of wood is attached to the base support frame 13 to protect the roof tile 22.

The base supporting bases 13 and 13 are attached and fixed to a house by wires. Fixing to the house
For example, as shown in FIG.
It is attached via. A lower end portion of the clamp member 34 is inserted into a fixing fitting 36 fixed to a purlin 38 with bolts 37. A guide member 35 for holding the clamp member 34 in a vertical posture is fixed to the roof side, and an intermediate portion of the clamp member 34 is guided by the guide member 35.

As shown in FIG. 2, a plurality of solar cell modules 10 are provided on a pair of panel connecting members 12, 12 having a U-shaped cross section, which are arranged so that their openings are opposed to each other.
..., in this embodiment, three solar cell modules 10, 1
The solar cell panel 11 is configured by fixing 0 and 10.
That is, in the present invention, the solar cell panel 11 means a plurality of solar cell modules 10 ... Fixed to a pair of panel connecting members 12, 12. Then, a plurality of solar cell panels 11, in this embodiment, four solar cell panels 11 ... Are fixed on the base support frames 13, 13 to form the basic unit 30 of the roof-mounted solar cell device of the present invention. To be done. That is, in the present invention, the basic unit 30 means a pair of base support bases 13, 13
A plurality of solar cell panels 11 ... Are fixed on top. Therefore, in this embodiment, the basic unit 30 has 12
The individual solar cell modules 10 ... Are fixed.

The solar cell panel 11 and the base support frame 13 are mounted by inserting a bolt (not shown) into the connection hole 12a provided in the panel connection member 12 and the connection hole 13a provided in the base support frame 13, Fix both with bolts and nuts. As shown in FIG. 3, since the opening of the base support frame 13 and the end opening of the panel connecting portion 12 are arranged so as to face the operator, the work of fixing them can be easily performed.

FIG. 9 is a sectional view showing an example of the solar cell module 10 used in the present invention.

As shown in FIG. 9, photoelectric conversion regions 2 are directly provided on the surface of a substrate 1 made of a material having a light-transmitting and insulating property such as tempered glass at regular intervals. The photoelectric conversion region 2 includes, for example, from the substrate 1 side, a transparent conductive film 3 such as tin oxide or indium tin oxide, a semiconductor film 4 made of amorphous silicon or polycrystalline silicon having a semiconductor junction therein, and a semiconductor. The film 4 and the back electrode film 5 made of aluminum or the like in ohmic contact have a micron-order thin film shape that is sequentially stacked.

The substrate 1 provided with the photoelectric conversion region 2 is held by an outer frame 6 made of aluminum or the like, and the surface thereof is covered with a resin layer 7 for protection.

By attaching the panel connecting member 12 and the outer frame 6 of the solar cell module 10 described above by using bolts or nuts, or by screwing one of the connecting member 12 and the outer frame 10 and tightening the screws. Both are fixed.

In the roof-mounted solar cell device of the present invention, in order to secure a light receiving area corresponding to the shape of the roof and the desired output voltage, the above-mentioned basic unit 30 is provided as shown in FIGS. A plurality of members are connected by a connecting member.

FIG. 4 is a perspective view showing a connection mode between the base support frames 13 of each basic unit 30.

As shown in FIG. 4, a spacer 17 is connected and fixed between the pair of base supporting frames 13 and 13 via an L-shaped fixing metal fitting 17a. The spacers 17 are used to match the length of the solar cell panel 11 with the length between the base support pedestals 13 and 13 and to maintain the strength of the base support pedestal 13. Fixing between the fixing metal fitting 17a, the spacer 17 and the base support base 13 is performed by screwing,
It is done by riveting and welding.

The horizontal connection between the basic units 30, 30 is performed by a plate-like fixing metal fitting 16 on the back surface of the base support base 13.
Done through. Base support base 13 and fixing bracket 16
For fixing, a hole is provided at a position corresponding to each of them, and a bolt is passed through the hole and screwed. Therefore, between the basic units 30 and 30, bolts,
You can move it up and down a little until you tighten the nut. That is, the fixture 16 and the base support base 13
Until the and are fastened, the base support base 13 and the fixing bracket 1
6 is configured to be swingable relatively. The reason for doing this will be described later.

The connection between the basic units 30, 30 in the front-rear direction is carried out via an L-shaped fixing metal fitting 18a and a connecting metal fitting 18 having a U-shaped cross section. An L-shaped fixing bracket 17 is fixed in the opening of the base support frame 13 by screwing, riveting, or the like. Then, the connecting fitting 18 is connected and fixed to the fixing fitting 18a so that the opening of the connecting fitting 18 faces the roof side. The fixing metal fitting 18a and the connecting metal fitting 18 are fixed to each other by forming holes at positions corresponding to the fixing metal fittings 18a and the connecting metal fittings 18, and inserting bolts into the holes to fix them. Therefore,
Between the units 30 and 30, until the bolts and nuts are tightened and fastened, the units 30 and 30 can be slightly moved up and down in the front-rear direction as in the lateral direction. That is, the base support pedestal 13 and the connecting metal fitting 18 are configured to be relatively swingable until the fixing metal fitting 18a fixed to both the base supporting pedestals 13, 13 and the connecting metal fitting 18 are fastened. The reason for doing this will be described later.

In this embodiment, the length of the above-mentioned connecting fitting 18 is such that when the basic units 30, 30 are connected together,
The length is set so that a worker's foot can be inserted between the support frames 13 and 13 connected by the connecting fittings 18, for example, the distance between the support frames 13 and 13 is set to be opened by about 20 to 30 cm.

As shown in FIG. 5, the roof is provided with a gradient of a predetermined angle from the front and rear, that is, from the eaves side to the eaves side, and the inclination is gradually reduced from the eaves to the eaves side. , The roof is often curved. Moreover, the unevenness of the roof tile varies depending on the type of tile.

Further, as shown in FIG. 6, even in the lateral direction of the roof, there are many cases where the roof is curved due to the construction of the building.

When a flat solar cell device is installed on the roof having such a shape, the bottom surface being a side surface or the front side as a whole, the gap between the roof and the solar cell device varies greatly depending on the location. The solar cell device installed on the roof should be as close as possible to the shape of the roof, and the gap between the two should be almost the same to reduce the gap between the solar cell mount and the roof to improve the strength of wind power (strong wind during a typhoon). Can be raised and placed
It is preferable in terms of the strength of the solar cell and the installation method.

Therefore, in the present invention, as described above,
In the front-rear direction of the roof 21, as shown in FIG. 5, the front and rear basic units 30, 30 are moved in the arrow direction (vertical direction) in the drawing with respect to the connecting fitting 18, and the bases of the respective basic units 30, 30 are moved. The support base 13 is adjusted to an optimal position in accordance with the unevenness of the roof tile and the curvature of the roof, and the fixing metal fitting 18a and the connecting metal fitting 18 are fastened and fixed.

Further, in the left-right direction of the roof 21, as shown in FIG.
6, the base supporting pedestal 13 of each of the basic units 30, 30 is adjusted to an optimum position corresponding to the curve of the roof 21, and the base supporting pedestals 13, 13 are fixed. The metal fitting 16 is fastened and fixed.

By arranging the base support frames 13 and 13 on the roof 21 in this way, the solar cell device can be installed along the shape of the roof 21 regardless of the curvature of the roof 21 and the unevenness of the roof tiles. it can.

FIG. 7 shows an embodiment in which the amount of adjustment between the base supports 13 and 13 is increased. In the structure shown in FIG. 7, a long hole 18b is provided in the connecting metal fitting 18, and a bolt is inserted between the long hole 18b and the hole of the fixing metal fitting 18 for screwing. In this way, by making one hole a long hole,
The connecting metal fitting 18 and the base support pedestal 13 increase the adjustment amount between the base support pedestals 13 and 13 by an amount obtained by adding the amount of movement in the lengthwise direction of the long hole 18b to the amount of swing movement about the bolt. be able to.

Further, the base support frame 1 in the lateral direction of the roof 1
If the hole of the fixing metal fitting 16 for connecting between 3 and 13 is formed of a long hole, the adjustment amount can be increased similarly to the above.

Since the roof-mounted solar cell device according to this embodiment is composed of a plurality of basic units 30, 30, ..., These basic units 30, 30 are electrically connected to each other by using lead wires. The electric power of the battery panel 11 is superimposed and taken in indoors. The lead wires between the basic units 30, 30 are attached to the back surface side of the solar cell panel 11, that is, the side of the solar cell panel 11 facing the roof, so that the lead wires are not exposed to rain or direct sunlight. Although the lines are protected, in this embodiment, a space is provided between the front and rear basic units 30, 30 to the extent that a worker's foot can be inserted from the viewpoint of workability. For this reason, the lead wire for wiring may be exposed during this period, but in this embodiment, a connecting member 18 having a U-shaped cross section is used as a connecting member for connecting the basic units 30, 30.
Since the opening surface faces the roof side, the lead wire can be passed through the connecting fitting 18 to protect the lead wire from rain and direct sunlight.

Next, a method of installing the solar cell device of the present invention will be described with reference to FIGS.

First, the space between the pair of base supporting frames 13 and 13 to which the spacer 17 is fixed is prepared. A fixing metal fitting 16 and a connecting metal fitting 18 are temporarily fixed to the base support base 13. Although the fixing bracket 16 and the connecting bracket 18 are not attached to the base supporting base 13 on the side connected to the base supporting base 13, the fixing bracket 18a for mounting the connecting bracket 18 is fixed to the base supporting base 13. .

A pair of panel connecting members 12, 12 having a U-shaped cross section are arranged so that the openings are opposed to each other.
In this embodiment, three modules 10, 10, 10
Are fixed and the solar cell panel 11 is prepared. In this embodiment, four solar cell panels 11 ...
3 and 13, the bolts are passed through the connecting holes 12a provided in the panel connecting member 12 and the connecting holes 13a provided in the base support frame 13, and the two are fixed with bolts and nuts. As described above, since the opening of the support base 13 and the end opening of the panel connecting portion 12 are arranged so as to face the operator, the fixing work of both can be easily performed.

When the basic unit 30 in which four solar cell panels 11 are fixed to the base support frame 13 is lifted on the roof 21 and a plurality of basic units 30 ... Are placed on the roof 21, the basic unit 30 is placed. , 30 are connected.

As described above, in the front-back direction of the roof 21, as shown in FIG.
Is moved in the direction of the arrow in the drawing with respect to the connecting metal fitting 18, and the support bases of the respective basic units 1 and 1 are adjusted to an optimum position in accordance with the unevenness of the roof tile and the curve of the roof, and then fixed. The metal fitting 18a and the connecting metal fitting 18 are fastened and fixed with a screw fastening element.

In the left-right direction of the roof, as shown in FIG.
By moving the left and right basic units 30, 30 in the vertical direction with respect to the fixing bracket 16, the respective basic units 30,
The base support pedestal 13 of 30 is adjusted to an optimum position in accordance with the curvature of the roof 21, and the base support pedestal 1
3 and 13 and the fixing metal fitting 16 are fastened and fixed by a screw fastening element. When connecting these units 30, 30, electrical connection is also made at the same time. At the time of connecting the basic units 30 and 30, there is a gap between the base support bases 13 and 13 connected by the connecting metal fittings 18 so that the feet of the worker can be inserted. , Work can be done easily without damaging the solar cell.

Then, the base support base 1 located on the outer periphery
The solar cell device of the present invention is installed on the roof by attaching 3, 13 to the house with wires.

In the above-mentioned method, the basic unit 30 is created on the ground, but this avoids work on the roof as much as possible and considers workability so as not to make the weight too large to be lifted. Because it was done.

Of course, it is also possible to install all the base supporting bases 13 on the roof first, and then attach the solar cell panels to the base supporting bases 13.

Further, in the solar cell device of the present invention, since there is an interval between the support bases 13, 13 connected by the connecting metal fittings 18 so that a worker's foot can enter, any solar cell panel after installation is installed. (Or solar cell module) is broken,
When it is necessary to replace it, the operator can easily go to that location and only the damaged one can be replaced, so it is excellent in maintainability.

In the embodiment described above, the connecting fitting 18
Although there is an interval between the support bases 13, 13 that are connected with each other so that a worker's foot can be inserted, such an interval is not provided, and an interval that allows the position adjustment between the basic units 30, 30 is possible. You may However, when such an interval is set, the maintainability after installation is inferior to that of this embodiment.

In the above-mentioned embodiment, the fixing metal fittings 18a fixed to the base supporting bases 13 and 13 and the connecting metal fittings 18, and the base supporting bases 13 and 1 are attached.
The bolts and nuts are used to attach 3 to the fixing bracket 16, but in addition to this, one of them may be threaded and fixed by screwing.

[0053]

As described above, according to the method for installing a roof-mounted solar cell device of the present invention, a plurality of solar cell panels electrically connected to each other on a base support frame installed on the roof. The solar cell device can be easily installed without connecting the existing roof by simply connecting a plurality of basic units each having the attached.

Further, by connecting a plurality of units with a connecting member, it is possible to install an optimum roof-mounted solar cell device corresponding to the shape of the roof and the required light-receiving area.

Further, since the units are connected to each other by the connecting members so that the positions thereof can be adjusted in the vertical direction, the solar cells can be installed along the shape of the roof, and the strength and installation method of the solar cells are improved.

Further, since the opening of the gantry and at least the end opening of the panel connecting member are arranged in the same direction, the operator can easily assemble the both with the screw fastening element on the opening side. , The workability of assembly is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a roof-mounted solar cell device of the present invention installed on the roof of an existing house.

FIG. 2 is a perspective view showing a main part of the roof-mounted solar cell of the present invention.

FIG. 3 is a plan view showing a roof-mounted solar cell device of the present invention installed on the roof of an existing house.

FIG. 4 is a perspective view showing a connection mode between base supporting frames of each basic unit of the present invention.

FIG. 5 is a side view showing a connection mode between the basic units in the front-back direction of the roof of the present invention.

FIG. 6 is a front view showing a connection mode between the basic units in the left-right direction of the roof of the present invention.

FIG. 7 is a side view showing another example of the connection mode between the basic units in the front-rear direction of the roof of the present invention.

FIG. 8 is a perspective view showing an example of mounting the solar cell device on a house.

FIG. 9 is a sectional view showing an example of a solar cell module used in the present invention.

[Explanation of symbols]

 10 solar cell module 11 solar cell panel 12 panel connecting member 13 base support stand 16 fixing metal fitting 18 connecting metal fitting

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsunori Toyota 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Koichi Okada 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A base unit is prepared by mounting a plurality of solar cell panels electrically connected to each other on a pair of base support frames installed on a roof, and a plurality of base units placed on the roof. A method for installing a roof-mounted solar cell, comprising: connecting the above-mentioned base support frames using a connecting member to install the solar cell device on the roof. 2. The base supporting frame and the connecting member are connected to each other using a screw fastening element, and the basic units are positionally adjusted to each other in the vertical direction, and then the both are fixed. How to install roof-mounted solar cells.