JPH0818085A - Installing method for plurality of solar cell units - Google Patents

Abstract

PURPOSE:To provide a method for installing a plurality of solar cell units in which the wiring connecting operation of the units can be easily conducted by one operator and the operation can be executed without hot-line state. CONSTITUTION:A second solar cell panel 11 to be installed next is temporarily placed by turning it over on the photoreceiving surface of a first solar cell panel 11 installed on base supporting trestles 13. The wiring connecting operation with the first panel 11 is executed in this state. After the wiring is completed, the panel 11 is overturned to front side, and plainly installed adjacent to the already installed first panel 11. Similarly, third and following panels 11 are executed, and a plurality of the panels 11 are installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a plurality of solar cell devices suitable for installation 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 device has an advantage that it does not need to be installed equipment such as a pedestal because it only needs to be installed in place of existing roof tiles.

However, when the roof tile solar cell device described above is to be laid on an existing roof, it is necessary to lay the roof tile solar cell device after removing the roof tile that has already been laid. I won't. For this reason, it takes a lot of time and labor for the laying work, which is not preferable for the existing roof.

Therefore, for example, a rail-shaped base support frame is installed and fixed on the roof, and a plurality of solar cell devices are arranged on the roof by sequentially arranging panel-shaped solar cell devices on the base support frame. It is possible to install it in

[0007]

By the way, when the solar cell devices are sequentially arranged on the base support frame, it is necessary to wire-connect the solar cell devices. However, since the wiring box is provided on the back surface of the solar cell device, the above-mentioned wiring connection work is performed by one operator by diagonally setting the solar cell device to be installed next so that the back surface faces substantially upward. Other workers will carry out the wiring connection with the existing solar cell device, and at least two workers are required. On the other hand, when both of these works are performed by one worker, unstable work is forced, which is not preferable as work on the roof. Furthermore, since the already installed solar cell device is in a power generation state by receiving sunlight, it is necessary to take care so that the wiring work becomes a live work and no electric shock accident occurs.

In view of the above circumstances, it is an object of the present invention to provide a method for installing a plurality of solar cell devices, which facilitates the arrangement and fixation of the solar cell devices and the safety of wiring connections.

[0009]

According to a first method for installing a plurality of solar cell devices of the present invention, another solar cell device is placed face down on the light receiving surface of the solar cell device installed with the light receiving surface facing upward. Then, temporarily place them so that their light-receiving surfaces face each other, and in this state, perform the wiring connection work with the existing solar cell device, and after this wiring, direct the other solar cell device with its light-receiving surface facing up. It is characterized in that it includes a step of setting up.

The second method for installing a plurality of solar cell devices according to the present invention comprises a step of temporarily placing another solar cell device on the solar cell device and a step of wiring and connecting the temporarily placed solar cell devices. Perform the operation, move the multi-tiered solar cell devices obtained in this work to the installation location, deploy the solar cell devices at this installation location, and install with the light-receiving surface facing up. Characterize.

[0011]

According to the above-mentioned first structure, the other solar cell device is placed face down on the light receiving surface of the solar cell device installed with the light receiving surface facing upward so that the light receiving surfaces face each other. Then
Since the wiring connection work with the existing solar cell device is performed in this state, it is not necessary to hold the other solar cell device diagonally so that the back surface of the solar cell device faces substantially upward, and the wiring work is stable by one person. You can do it safely. Further, since the light receiving surface of the already installed solar cell device is covered with another solar cell device, it becomes a non-active work and an electric shock accident or the like can be prevented.

According to the second configuration, the work of temporarily placing another solar cell device on the solar cell device and the work of connecting the temporarily placed solar cell devices to each other by wiring should be performed at a stable place on the ground. You can Then, the plurality of multi-layered solar cell devices obtained in the above work are moved to the installation location (on the roof, etc.), and the plurality of solar cell devices are deployed and installed at this installation location. Wiring work is eliminated, and quick and easy installation can be achieved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing a base support stand installed on the roof of an existing roof, and FIG. 2 is a perspective view showing a solar cell device installed on the base support stand.

On the roof tile 22 of the roof 21 facing the south side, a pair of base support pedestals 13, 13 having a U-shaped cross section (so-called C channel) are parallel to each other in the front-rear direction and non-open. The parts are arranged so as to face each other.
A protective material 14 made of wood is attached to the base support frame 13 to protect the roof tile 22.

The base support frames 13 and 13 are attached and fixed to the house by wires. As an example of fixing to the house, 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 1 are provided on a pair of module connecting members 12 and 12 having a U-shaped cross section and arranged so that the openings thereof face each other.
0 ..., in this embodiment, three solar cell modules 10,
The solar cell panel 10 is configured with 10 and 10 fixed. That is, in the present invention, the solar cell panel 11
Means a plurality of solar cell modules 10 ... Fixed to a pair of module connecting members 12, 12. And
A plurality of solar cell panels 11, in this embodiment, four solar cell panels 11 ... Are fixed on the base support frames 13 and 13, and are a basic unit 30 of the roof-mounted solar cell device.
Is configured.

Next, mounting of the solar cell panel 11 on the base support frame 13 and wiring connection work between the solar cell panels 11 mounted on the base support frame 13 will be described with reference to FIGS. 4 to 8.

First, as shown in FIGS. 1 and 3, when the base support stand 13 is installed on the roof, as shown in FIG.
As shown in (a), a main line 41 for arranging the power generated by each solar cell module 10 ... To an inverter device (not shown) or the like is arranged. The main line 41 runs through a pipe (flexible tube or the like) 42. The pipe 42 is
It is connected and fixed to the base support frame 13 with a binding band or the like. The opening of the pipe 42 faces the eaves.

The plus side line 41a of the main line 41 is the pipe 4
The solar cell panel 11 arranged at the farthest position from the second side
It is pulled out to a position reaching the solar cell module 10 on the ridge side. On the other hand, the minus side line 41a is drawn out from the pipe 42 side to a position reaching the solar cell module 10 on the eaves side of the solar cell panel 11 arranged at the closest position.

Here, the plus side line 41a and the minus side line 41b of the main line 41 are provided through the C channel of the eaves side base support base 13 as shown in FIG. 4 (b). By thus providing the main line 41 through the C channel, it is possible to avoid the main line 41 from receiving sunlight directly. Further, as shown in FIG. 7C, the upper wall surface in the C channel may be provided so as to crawl.
According to this, adhesion of rainwater to the main line 41 is prevented. In addition, the fixation of the main line 41 in the C channel is as follows.
This can be done by using the C-channel reinforcing ribs or by using a pressing metal fitting.

Next, as shown in FIG. 5, the first solar cell panel 11 is installed on the base support base 13 at the farthest position from the pipe 42. At the time of this installation, main line 41
The positive side line 41a is connected to the positive terminal of the solar cell module 10 on the ridge side of the solar cell panel 11. Furthermore, the solar cell module 1 on the eaves side of the solar cell panel 11
The cable 43 is connected to the negative terminal of 0 and cut to a predetermined length.

The cable 43 is cut to a predetermined length by cutting the cable from the terminal box 10a to the module connecting member 12 on the piping side of the solar cell module 10 and the C channel of the module connecting member 12 to be installed next. To have a length obtained by adding the length required to reach the terminal box 10a of the solar cell module 10 on the ridge side of the battery panel 11 and the thickness of the module 10 (including the module connecting member 12) × 2. To do. The cable 43 is connected to the module connecting member 12 in advance.

When the wiring of the first solar cell panel 11 is completed, the solar cell panel 11 is installed on the base support base 13. This installation is performed by connecting holes 12a provided in the module connecting member 12 and the base support base 13
This is done by inserting a bolt (not shown) into the connection hole 13a provided in the above, and fixing both with a bolt and a nut.
At this time, as shown in FIG.
Since the opening 3 and the end opening of the module connecting member 12 are arranged so as to face the operator, the work of fixing them can be easily performed.

Next, the second solar cell panel 11 is installed and fixed next to the existing first solar cell panel 11. In this installation work, first, as shown in FIG.
The first solar cell panel 11 is turned over and temporarily placed on the upper surface of the existing first solar cell panel 11. In this temporarily placed state, the flat surface which is the light receiving surface of the second solar cell panel 11 and the flat surface which is the light receiving surface of the existing first solar cell panel 11 are in contact with each other, so that stable Secondly
The first solar cell panel 11 can be temporarily placed.
Then, since the terminal boxes 10a of the solar cell modules 10 of the second solar cell panel 11 face upward, wiring connection work with the existing first solar cell panel 11 is facilitated. You can do it.

Further, since the light receiving surface of the first solar cell panel 11 which has already been installed is covered with the second solar cell panel 11, it becomes a non-active work and prevents an electric shock accident. It will be possible.

After the wiring work for the first solar cell panel 11 and the connection of the cable 43 for the third solar cell panel 11 to be installed next and the cutting operation for a predetermined length are completed, By repeating one side edge of the second solar cell panel 11 as a fulcrum and repeating it to the front side, as shown in FIG. 7, the second solar cell panel 11 is provided next to the first solar cell panel 11. 11 is installed in a plane.

By this planar installation, the slack X appears on the cable 43 by a length corresponding to the thickness of the solar cell module 10 × 2. The slack X may be held by a holding metal fitting or the like when the second solar cell panel 11 is fixed to the base support frame 13 with bolts.

After that, by repeating the same work as described above, the third and fourth solar cell panels 11, 11 are installed.

Then, in the installation of the fourth solar cell panel 11, as shown in FIG. 8, the negative side line 41b of the main line 41 is connected to the negative terminal of the solar cell module 10 on the eaves side of the solar cell panel 11. After that, the work of fixing the solar cell panel 11 with a bolt may be performed. As a result of the above work, as shown in FIG. 9, the four solar cell panels 11 ... Are arranged and fixed to form the basic unit 30 of the roof-mounted solar cell device.

According to the above installation method, the solar cell panel 11 to be installed next is turned upside down and temporarily placed on the light receiving surface of the already installed solar cell panel 11, and in this state, Since the wiring connection work is performed, it is not necessary to hold the solar cell panel to be installed next upright so that the back surface thereof faces substantially upward, and the wiring work can be stably and safely performed by one person. Furthermore, since the light-receiving surface of the already installed solar cell panel 11 is covered by the solar cell panel 11 to be installed next, the wiring connection work becomes a non-active line work, so that an electric shock accident or the like can be prevented. When the wiring connection is performed as described above, both solar cell panels 11,
The cable 43 connecting 11 is inevitably long, and this long length causes the solar panel 1 to be repaired.
In order to be able to shift or raise 1,
There is also an advantage that repair work becomes easier.

According to the construction method of this embodiment, as described above, the light receiving surface of the already installed solar cell panel 11 is covered by the solar cell panel 11 to be installed next, so that the installation and connection work can be performed. Although it can be deactivated work, in order to make this deactivated work more reliable, as shown in FIG. 10, a solar shield film 45 is attached to the first solar cell panel 11. Alternatively, the film 45 may be peeled off after the wiring work for all the panels 11 ... Is completed.

Further, in this embodiment, the solar cell device in the construction method for installing a plurality of solar cell devices is the solar cell panel 11, but the solar cell device is the solar cell module 10 and the module connecting member is made in the same procedure. The solar cell modules 10 may be sequentially installed and fixed to the solar cell 12.

(Embodiment 2) Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the construction method of this embodiment, as shown in FIGS. 11 and 12, the work of temporarily placing another solar cell panel 10 on the solar cell module 10 and the temporarily placed solar cell modules 10, 10 are Wiring and connecting work is sequentially performed on the ground or the like, and the plurality of multi-layered solar cell modules 10 obtained in this work are transferred to the installation place, for example, a roof, and the plurality of solar cell modules are placed on the roof. This is a method of unfolding 10 ... And installing it in a plane on a base support frame (not shown).

11 and 12 are perspective views showing an example of a plurality of solar cell modules 10 ... In a multi-tiered state. FIG. 11 shows a case where a plurality of solar cell panels 10 ... In a multi-stage stacked state are alternately stacked face-up and face-down, and FIG. 12 shows a plurality of solar cell modules 10 in a multi-stage stacked state. The figure shows a case where all of the ... Are stacked face up. Of course, the line length of the wiring between the terminal boxes 10a ... Of the plurality of solar cell modules 10 ...

According to this method, the work of temporarily placing the other solar cell module 10 on the solar cell module 10 and the work of connecting the temporarily placed solar cell modules 10 and 10 to each other by wiring are at a stable place on the ground. It can be carried out. Then, the plurality of multi-layered solar cell modules 10 obtained in the above work are transferred onto a roof or the like, and the plurality of solar cell modules 10 ... Wiring work in
Installation can be speeded up and facilitated.

Here, in the method shown in FIG. 11, since the solar cell modules 10 ... Are connected in a folding screen shape, there is a drawback that the deployment work must be performed simultaneously on the entire solar cell modules 10. On the other hand, FIG.
If the method shown in FIG.
0, 10, 10 is moved to the next to the bottommost solar cell module 10, and then these three solar cell modules 10, 1
Move the two solar cell modules 10 and 10 above 0 and 10 next to the solar cell module 10 below,
Since the expansion can be performed sequentially, the expansion work is easy.

Further, the solar shield film 45 shown in FIG. 10 of the first embodiment is attached to the solar light receiving surface of the solar cell module 10 to stack a plurality of solar cell modules 10 ... It is possible to prevent the wiring work in the work from becoming live work. Further, since it is easy to get a shade on the ground, it is easy to make the wiring connection work a non-hot line work.

[0040]

As described above, according to the present invention,
The wiring work can be stably and safely carried out by one person, and the wiring work becomes a non-wiring work to prevent an electric shock accident or the like. Further, in the deployable construction method, the wiring work between the solar cell devices can be performed in a stable place such as on the ground, and the wiring work between the solar cell devices on the roof is not necessary. This has the effect of improving the efficiency of the work of installing a plurality of sheets.

[Brief description of drawings]

FIG. 1 is a perspective view showing a base support frame installed on an existing roof in a method of installing a plurality of solar cell devices of the present invention.

FIG. 2 is a perspective view showing a main part of a roof-mounted solar cell installed on an existing roof by a method of installing a plurality of solar cell devices of the present invention.

FIG. 3 is a perspective view showing an example of mounting the solar cell device on a house.

FIG. 4 is a plan view showing a state in which a main line is arranged on a base support frame in a method of installing a plurality of solar cell devices of the present invention.

FIG. 5 (a) is a plan view showing a state in which a first solar cell panel is arranged and fixed on a base support frame in a method of installing a plurality of solar cell devices of the present invention,
(B) of the same figure is a perspective view showing a state when the first solar cell panel is arranged.

FIG. 6 shows a state in which the second solar cell panel to be subsequently installed on the first solar cell panel is temporarily placed upside down in the method of installing a plurality of solar cell devices of the present invention. FIG.

FIG. 7 is a diagram illustrating a method of installing a plurality of solar cell devices according to the present invention, in which the second solar cell panel is repeatedly turned to the front side from the state of FIG.
It is a perspective view which shows the state which planarly arrange | positioned the 1st solar cell panel.

FIG. 8 is a perspective view showing a state in which the fourth solar cell panel is temporarily placed on the third solar cell panel and wired in the method of installing a plurality of solar cell devices of the present invention. .

FIG. 9 is a perspective plan view schematically showing a roof-mounted solar cell obtained by a method of installing a plurality of solar cell devices of the present invention.

FIG. 10 is a perspective view of a roof-mounted solar cell showing a state in which a solar shield film is attached to the solar light receiving surface of the first solar cell panel in the method of installing a plurality of solar cell devices of the present invention. It is a figure.

FIG. 11 is a perspective view showing a plurality of solar cell panels in a multi-tiered state as an example of a method of installing a plurality of solar cell devices according to another embodiment of the present invention.

FIG. 12 is a perspective view showing a plurality of solar cell panels in a multi-stage stacked state, which is another example of a method of installing a plurality of solar cell devices according to another embodiment of the present invention.

[Explanation of symbols]

 11 Solar panel 13 Base support 41 Main line 42 Piping 43 Cable

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hitoshi Kishi 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A solar cell device installed with its light-receiving surface facing upward is temporarily placed so that other solar cell devices face each other so that their respective light-receiving surfaces face each other. A method for installing a plurality of solar cell devices, comprising a step of performing wiring connection work with an existing solar cell device, and installing the other solar cell device with its light-receiving surface facing upward after completion of the wiring. 2. A step of temporarily placing another solar cell device on the solar cell device and a step of wiring and connecting the temporarily placed solar cell devices to each other are sequentially performed, and a plurality of multi-tiered sheets obtained by this operation are stacked. A method for installing a plurality of solar cell devices, which comprises moving the solar cell devices to the installation location, deploying a plurality of solar cell devices at the installation location, and installing the solar cell devices with their light-receiving surfaces facing upward.