JPH0888389A - Solar power generation unit - Google Patents

Abstract

(57) [Abstract] [Purpose] A solar cell panel is attached to a tree shape in the shape of a single pillar to achieve effective light reception and to be suitable for installation in a park or the like. [Structure] The solar power generation unit 1 is a block 10 that is embedded in the ground, and is installed upright on the block 10.
It has a column 20 of books. Nine solar cell panels 30-1, 30-2, ... 30-9 are arranged on the column 20 via dedicated arms 40-1, 40-2 ,. . The nine solar panels are arranged in the shape of a tree as a whole on one pillar, so they do not shade each other and have good light-receiving efficiency, and the surrounding landscape even when installed in a park or the like. Matches.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation facility using sunlight for driving electric equipment such as a fountain in an outdoor park.

[0002]

2. Description of the Related Art There is a solar cell that directly converts solar energy falling on the earth into electric energy by utilizing a photo-starting force effect at a pn junction of a semiconductor. Generally, a solar cell system uses a solar cell module in which a plurality of solar cells are arranged in a plate shape. When the load consumption of the solar power generation system is small, it is possible to configure the power generation equipment with the above-mentioned solar cell module alone, but when the load power consumption of the system is large, multiple solar cell modules are used. It is necessary to electrically connect those modules in series or in parallel according to the current and voltage to be generated by forming them with one sheet.

Regarding the installation of a solar power generation system composed of a plurality of solar cell modules, in order to make it as easy as possible to receive the amount of solar radiation of the direct component of the sun, 10 ° to 30 °
They are fixed to the ground or the roof of a house so that they do not shade each other. However, when it is desired to install the above-described solar power generation system in a city park or the like, a large installation area is required, which poses a practical problem.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to construct a system that consumes a large amount of load power even in a place where the installation area is limited and where solar power generation is required. And Furthermore, by rotating the supporting pillars that support the orientation of multiple solar cell modules, the solar cell surfaces are oriented in the direction of the sun, increasing the amount of solar radiation that hits the solar cell modules and increasing the total amount of power generation. The purpose is to

[0005]

As a basic means, the solar power generation unit of the present invention comprises one support and a plurality of trees arranged in a tree shape with arms connected to the support. It is equipped with a solar cell module.

[0006]

The solar power generation unit is formed into a tree shape as a whole, so that the solar cell module can efficiently receive light, and when installed in a park or the like, it matches the surrounding landscape.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing the general outline of a tree-type solar power generation unit of the present invention. A tree-type solar power generation unit, generally designated by the reference numeral 1, is a box-shaped block 10 and a single column 20 standing upright on the center of the block.
Have. The block 10 and the column 20 are made of a metal material or the like. Then, a plurality of solar cell modules are attached to the one column 20.

In the illustrated embodiment, a total of nine solar cell modules 30 (30-1, 30-2, ... 30) are provided.
-9) is provided for the column 20. Then, these nine solar cell modules 30-1, 30-2, ...
30-9 are nine independent arms 40 (40-
1, 40-2, ... 40-9), and is attached to the column 20.

FIG. 2 is a front view of the tree-type solar power generation unit 1 of the present invention, FIG. 2 is a side view, and FIG. 3 is a plan view. As shown in FIG. 1, the tree-type solar power generation unit 1 has columns 20 standing upright on a block 10. A hook 12 is attached around the box-shaped block 10 and is used when hoisting by a crane or the like. The tree-type solar cell module unit 1 is, for example,
It will be installed in a park, but at that time, a hole G will be formed on the ground G-1.
-2 is dug and a block is embedded in this hole G-2, and the whole unit 1 is fixed.

The pillar 20 provided upright on the block 10 can be fixed to the block 10, but the base 22 is fixed to the block 10 to support the pillar 2.
0 can be configured to be able to swivel about the axis of the column 20 with respect to the base 22. Support 22 to support 22
On the other hand, as a mechanism for rotatably supporting, for example, a thrust bearing or the like is used, and a structure that supports the axial load applied to the support column 20 and requires a small torque for turning is adopted.

Each of the nine solar cell modules 30 mounted on the support column 20 is one in which solar cells are laid on the support plate 300 and wiring is provided, and the nine solar cell modules 30-1 and 30- are provided. 2 ... 30-9 all have the same configuration. In addition, a so-called bird protector is provided at the upper edge of each support plate 310 to prevent a bird from standing on the solar cell module 30 and soiling the surface of the solar cell 310 by standing a plurality of wires or the like. Configure. Each solar cell module 30 is attached to the column 20 via the arm 400.

FIG. 5 shows the structure of the support column 40. One end of the arm 400 made of a pipe or the like is fixed to the support column 20 via a joint 405, and the other end is bent parallel to the plate 310. Then, the plate is fixed in the direction of arrow B through the fastener 420 so that the angle can be adjusted. Also, arm 4
By attaching 00 to the support column 20 at an angle that is not horizontal, it is difficult for birds to stop. Generally, a solar cell module is arranged such that the normal line of the module faces the sun. When this direction is taken as the front direction of the tree-type solar cell module unit of the present invention, the axis in the height direction of the column 20 is Z in the front view, and Z is the front view.
Let X be the axis orthogonal to X and Y be the axis perpendicular to the plane X-Z.

In the present embodiment, the nine modules can be divided into three groups of three modules in the arrangement positional relationship. The modules 30-1, 30-2, and 30-3 forming the first group have the coordinates on the X axis of 0 in FIG. 2 and are arranged by changing the coordinates on the Z axis. That is, the module 30-1 includes the support column 20.
Of the modules 30-2 and 30-3 are arranged at the tops (having the largest coordinate values on the Z-axis), and the modules 30-2 and 30-3 are arranged at positions where the Z-coordinate values become smaller. These three modules 30
-1, 30-2, 30-3 are Z respectively when seen from the front.
They are arranged at intervals in the axial direction. This allows wind to pass between the adjacent modules, which has the effect of reducing the wind pressure.

The surface F _{1 of the} module 30-1 arranged at the uppermost part is attached with a holding angle of an angle α with respect to the ground surface so that the sun direction can be effectively received. This angle α varies depending on the latitude on the earth where the module unit 1 is installed.
Is small and the angle α is large at a large latitude.
Further, the apparent height of the sun also differs depending on the season and the time zone in which the module unit 1 is operated, and therefore the angle α naturally differs.

In the present invention, the uppermost module (30-1) of the modules forming the group is arranged at the next highest position inside the plane C ₁ including the plane F _1. By arranging the modules (30-2) and sequentially increasing the coordinate values of the axes, all the modules can be arranged so as to avoid the shade of the upper module, and can resemble the shape of a tree.

Next, referring to FIG. 2, the left side (X
The three modules 30-4, 30-5, 30-6 arranged on the side where the coordinate value on the axis becomes negative) are also arranged in accordance with the above-mentioned rules. At this time, the module arranged in the lower part of the column (the coordinate value on the Z axis is small) extends laterally compared to the module arranged on the upper part (the absolute value of the coordinate value on the X axis is It can be made to resemble the shape of a tree by arranging it in a (large) position. Similarly, in FIG. 2, three modules 30-7, 30- arranged on the right side of the column 20 (on the side where the coordinate value on the X axis is positive).
8, 30-9 are also arranged according to the above-mentioned rules, and a stable tree shape can be obtained.

This unit is equipped with nine modules. The nine modules are as shown in FIG.
The three modules 30-1, 30-4, 30-7 are arranged on the rear side (the side where the coordinate value on the Y-axis becomes negative) with respect to the axis of the column, and the six modules 30-2, 30-
5, 30-8, 30-3, 30-6, 30-9 are arranged on the front side (the side where the coordinate value on the Y-axis becomes positive). Therefore, three balance weights 80-1, 80-2, 8
0-3 is attached to the rear side of the support by arms 90-1, 90-2, and 90-3, respectively, to balance the center of gravity in the Y-axis direction. With this configuration, 1
The center of gravity can be aligned on the axis of the column 20 of the book,
The torque to turn the column is small.

A battery 60, a controller 62, and a drive unit 64 are provided in the base 22 of the support column 20, and a shaft 70 pivotally driven by the drive unit 64 supports the support column 20 in FIG.
In, a turning motion is made in the direction of arrow R. Due to this turning movement, the tree-type solar cell module 1 can achieve a so-called additional date function of efficiently receiving light by following the movement of the sun from sunrise to sunset. Prop 2
A cable 50 for transmitting electric power from each module 30 is arranged in the module 0.

FIG. 6 shows the control circuit of the turning drive system for the date of the support column 20. The electric power generated by the solar cell module 30 mounted on the pillar is sent to the base portion 22 via the cable 50. The circuit provided in the base portion 22 has a reverse current prevention diode 52, a breaker 54, and a charge / discharge switch 56, and stores the transmitted power in the battery 60. The output from the battery 60 is supplied to a DC motor 65 and a brake 66, which are components of the drive unit 64, via a motor / brake drive switch 68. The rotation of the turning shaft 70 driven by the motor 65 is transmitted to the positioning switch 67, and the rotation angle is detected by the switch 67 and sent to the controller 62.

The controller 62 is, for example, a timer 65.
And driving the DC motor 65 at regular intervals,
The control for adjusting 0 to the current direction of the sun is executed. Figure 7
Is a graph showing the power generation amount of the solar cell module 30, in which the horizontal axis represents the daytime T and the vertical axis represents the power generation amount E. A curve C2 indicating the amount of power generation shows a curve in which the maximum output is at 12:00 noon. If the power used by the load to which the solar cell module supplies power is E1, the surplus power E2 is stored in the battery 60 and used as the energy source for the additional date function.

FIG. 8 is an explanatory view showing another example of the additional date function. This device is a device for manually rotating the support column without using electric power or the like. The column 120 to which the solar cell module is attached is rotatably supported by the base 122. A handle 130 is provided on the base 122. When the handle 130 is manually rotated, the bevel gear mechanism or the like provided inside the support 120 is used.
Is configured to rotate. Prop 120
A sun direction meter 140 is attached to the outer peripheral surface of the. The sun direction meter 140 has a needle 142 installed parallel to the column 120 and a scale 144, and the sun light is blocked by the needle 142 to form a shadow 146 on the scale 144. When the handle 130 is rotated, the needle 142 rotates together with the support column 122, and the shadow 146 of the needle moves on the scale 144. By displaying the position where the shadow 146 is matched on the scale 144 in advance, it is possible to know the turning position of the column that is suitable for the current position of the sun.

In the tree type solar cell module unit of the present invention installed in a park or the like, a guide is displayed so that a person who visits the park can arbitrarily rotate the steering wheel to make the date of the current sun move. can do. If the load on the unit is such that the height of the fountain changes depending on the supplied power, such as a fountain, the amount of power generated by the unit can be easily checked visually, so it will attract people's attention.
The operating rate of the Japan Airlines is improved.

[0023]

As described above, according to the present invention, the panel-shaped solar cell module is attached to one column through the arms and formed into a tree shape as a whole. Because of the shape of trees, even when installed in a park, etc., it matches the surrounding landscape and does not feel foreign. Further, since the solar cell module is arranged at a high place of the support, the space below it can be effectively used. It can also be installed at a venue such as an event and used as a power source that does not require wiring.

It is necessary to arrange the solar cell module panels so that they do not shade each other. In the present invention, however, by arranging the module positions in a rule, the space factor is improved. Meanwhile, the modules can be rationally arranged. Moreover, since all the modules are mounted on one column, the date adding mechanism can be simplified. Furthermore, by composing the additional date mechanism and observing the power generation amount of the module by changing the load state, it is possible to attract people's interest and achieve the additional date effect manually. it can.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overview of an entire solar power generation unit of the present invention.

FIG. 2 is a front view of the solar power generation unit of the present invention.

FIG. 3 is a left side view of the solar power generation unit of the present invention.

FIG. 4 is a plan view of a solar power generation unit of the present invention.

FIG. 5 is an explanatory view showing a solar cell module mounting structure.

FIG. 6 is a control circuit of the additional date device.

FIG. 7 is a graph showing the power generation amount of the solar cell module.

FIG. 8 is an explanatory diagram showing another example of the additional date device.

[Explanation of symbols]

 1 solar power generation unit 10 block 20 base 30-1, ... 30-9 solar cell module 40-1, ... 40-9 arm 50 power cable 60 battery 62 controller 64 drive unit 70 drive shaft 80-1, ... … 80-3 Balance weight

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masahiro Sano Inventor Masahiro Sandadai 4-chome, Chiyoda-ku, Tokyo, Hitachi Industrial Products Division (72) Inventor Kazuo Kobayashi 4-chome Kanda Surugadai, Chiyoda-ku, Tokyo Shares Hitachi Industrial Products Division

Claims (2)

[Claims] 1. A solar power generation unit configured by using a plurality of solar cell modules, wherein one pillar and a plurality of suns arranged in a tree shape with arms connected to the pillar. A solar power generation unit comprising a battery module. 2. A means for rotating one pillar to which a solar cell panel is fixed with respect to a support of the pillar is provided, and is configured so that the direction of the sun and the surface direction of the solar cell panel can be aligned. The solar power generation unit according to claim 1, which is characterized in that.