JP2000048611A - Sunlight natural lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sunlight natural lighting device making good use of clean energy and to lower manufactures' costs, setting costs, and maintenance costs. SOLUTION: This sunlight natural lighting device 10 is composed of a natural lighting part getting the sunlight, a driving device 76 driving the natural lighting part, a microcomputer 24 controlling the driving device 76 to place the natural lighting part in its correct position according to the position of the sun, a solar battery 86 supplying the driving device 76 with electric power, a wind-power generating device 20 supplying the driving device 76 with electric power, and a charging device 22 charging surplus power of the solar battery 86 or the wind-power generating device 20. The electric power of the wind-power generating device 20 and the surplus power of the solar battery 86 are stored in the charging device 22, which enables flexibly coping with change in the weather condition and lightens the burden for the solar battery 86, to lower costs of the sunlight natural lighting device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sunlight collecting device which is attached to a roof of a building, collects sunlight, and guides sunlight to a room at a suitable angle.

[0002]

2. Description of the Related Art Heretofore, a sunlight lighting device capable of always lighting sunlight at a suitable angle by controlling the position of a lighting unit for lighting sunlight according to the position of the sun has been put to practical use. As the daylighting unit, those using a daylighting prism or a reflector plate have been put into practical use. Hereinafter, as an example of this conventional daylighting daylighting device, a solar daylighting device using a daylighting prism as a daylighting unit will be described. This will be described with reference to FIGS. 3A, 3B, and 4. FIG. FIG. 3 shows a solar lighting device 70.
1A is a plan view, and FIG. 1B is a vertical sectional side view. FIG. 4 shows the solar lighting device 70.
FIG. 4 is a longitudinal sectional side view showing a state in which sunlight is actually taken into a room by the sunlight lighting device 70 with the light-emitting device mounted.

[0003] First, a specific configuration of the solar lighting device 70 will be described with reference to FIGS. 3 (A) and 3 (B). FIG.
In FIGS. 7A and 7B, reference numerals 72a and 72b denote lighting prisms, and reference numeral 76 denotes a driving device for the lighting prisms 72a and 72b, for example, a stepping motor. Also,
Reference numeral 78 denotes a rotating ring for holding the lighting prisms 72a and 72b and rotating the lighting prisms 72a and 72b, 74 a light distribution plate, 82 an inner frame (frame), 84 an outer frame,
86 is a solar cell.

[0004] The sunlight L transmitted through the dome cover 52 and applied to the two light-receiving prisms 72a and 72b arranged at a predetermined distance from each other is irradiated with the sunlight L.
The light is refracted at a suitable angle by the refraction action of the light 72 b and guided into the building room via the light distribution plate 74.

On the other hand, although not shown, a driving device 76 for the daylighting prisms 72a and 72b, a gear mechanism including a driving gear, a motor, a control device for controlling the motor, a setting device for giving a control command to the control device, and the like. First, a detection output from a sunlight condition detecting device (not shown) for detecting a condition such as altitude and direction of the sun is provided to a setting device.

[0006] Next, upon receiving a drive command of the setting device, a control signal of the control device causes the motor to drive through a motor and a gear mechanism.
The daylighting prisms 72a and 72b are rotated, and their rotation positions are adjusted so that the sunshine can always be taken at a suitable angle. At this time, the solar battery 86 is a power supply source for driving the electric motor. The daylighting prisms 72a and 72b are rotatably supported by a plurality of bearing rollers 88a to 88f via a rotating ring 78.

FIG. 4 shows a method in which the sunlight L is always taken into a room at a suitable angle by the sunlight lighting device 70 with the above configuration.
This will be described with reference to FIG. FIG. 4 shows that the lighting port 58 of the sunlight L
The state where the solar lighting device 70 is attached is shown,
The sunlight L emitted from the suns S1 and S2 at the position shown in the figure passes through a dome-shaped cover (hereinafter referred to as a “dome cover”) 52 and a lighting plate 56, and is transmitted to the lighting prisms 72a and 72b. Incident. As the cover attached to the lighting port 58, a transparent dome, a dome-shaped milky white light scatterer, a cover attached with a flat glass, or the like is provided.

In FIG. 4, reference numeral 64 denotes a light guide path for guiding the sunlight L into a room, and is formed by surrounding the periphery with a light guide wall 66. The wall surface 66a of the light guide wall is made of a white cloth or painted white to form a light reflecting surface, or a mirror-like light reflecting surface. Also, 4
0 is the roof of the building, 42 is the ceiling, 44 is the daylighting device 7
A stand for installing 0, 60 is an exit of sunlight L,
Reference numeral 62 denotes prevention of dew condensation of the sunlight collecting device 70 and sunlight L
Is a light distribution plate for diffusing light.

As shown by S1 in FIG. 4, when the solar altitude is low, the sunlight L enters the upper daylighting prism 72a at a low incident angle, and the light exiting port 60 of the daylighting device 50 is refracted by the daylighting prism 72a. It is further bent in the direction by the light collecting prism 72b at the lower stage, is further bent in the direction of the light exit 60, directly enters the light distribution plate 62, is diffused by the light distribution plate 62, and is radiated indoors.

On the other hand, even when the solar altitude is high as shown in S2, the sunlight L directly enters the upper and lower lighting prisms 72a and 72b at a high incident angle, and is bent in the direction of the output port 60 to be directly distributed. The light enters the light plate 62, is diffused into the light distribution plate 62 in the same manner as described above, and is radiated indoors. For this reason,
When the sunlight collecting device 70 is used, in a general residential house, the sunlight L can be always collected at a suitable angle in the daytime, and no lighting equipment is required or weak lighting is sufficient, which contributes to energy saving. On the other hand, since natural light can always be irradiated to a plant at a suitable angle, application to a plant plant has also been attempted, and certain results such as promotion of growth or improvement of taste have been obtained.

[0011]

By the way, in a conventional solar lighting device, a solar cell is used alone as described above as a power source for a driving device of a lighting prism as a lighting portion, Some use a commercial power supply, or use a solar cell and a commercial power supply together.

[0012] However, the use of the solar lighting apparatus is expanding, and its use in places where commercial power is not supplied, such as mountainous areas and farms, is increasing. Therefore, in the case of a solar lighting device that uses a solar cell alone without using a commercial power supply, the power generation capacity of the solar cell is greatly affected by weather conditions such as temperature and sunshine. To do so, the area of the solar cell must be increased, and the capacity of the charging device must be increased, resulting in a problem that the manufacturing cost of the solar lighting device increases.

[0013] When the solar light is installed in a place where a sufficient amount of solar radiation cannot be obtained even in the daytime due to the shadow of a building or the like, it is difficult to use a solar lighting device using a solar cell alone. Alternatively, there is no other choice but to use a commercial power supply and a solar cell together, and there is a problem that it is difficult to expand the use of the solar light collecting device and unify the standards of the solar light collecting device.

Also, in the case of a solar lighting device using a commercial power source, wiring for connecting to a driving device is required, so that manufacturing costs and installation costs are increased, electricity costs are required, and maintenance costs are increased. was there. Furthermore, as environmental problems become more serious, there is an urgent need to utilize clean energy effectively.

[0015] It is an object of the present invention to provide a solar lighting device in which clean energy is effectively used and manufacturing cost, installation cost and maintenance cost are reduced.

[0016]

According to a first aspect of the present invention, there is provided a daylighting apparatus for driving a sunlight, and a daylighting unit for driving the daylighting unit. A driving device, a control device that controls the driving device so that the lighting unit is at an appropriate position according to the position of the sun,
And a wind power generator for supplying electric power to the driving device. With this configuration, clean energy such as wind power can be effectively used, so that the range in which weather conditions can be changed is widened, and a solar cell is not required, so that manufacturing costs can be reduced. In addition, since a commercial power supply is not required or the amount of power consumption of the commercial power supply can be reduced by the amount of power generated by the wind power generator, installation costs and maintenance costs can be reduced. Furthermore, it can be used in places where the amount of solar radiation is insufficient due to the shadow of a building or the like, and the use of the solar lighting device is expanded.

According to a second aspect of the present invention, there is provided a daylighting device for lighting a daylight, a driving device for driving the daylighting portion, and a position where the daylighting portion is properly positioned in accordance with the position of the sun. A control device for controlling the driving device, a solar cell for supplying power to the driving device, and a wind power generator for supplying power to the driving device. With this configuration, clean energy called wind power can be effectively used, and when used in combination with a solar cell, the range that can respond to changes in weather conditions is further expanded, the burden on the solar cell is reduced, and the area of the solar cell can be reduced. Therefore, the manufacturing cost can be reduced. In addition, as in the case of the first aspect, since a commercial power supply is unnecessary or the power consumption of the commercial power supply can be reduced, installation costs and maintenance costs can be reduced.

The solar lighting device according to the third aspect is configured to include a charging device for charging surplus power of a solar cell or a wind power generation device. With this configuration, the surplus power generated by the solar cell and the wind power generation device can be stored in the charging device, so that it is possible to flexibly respond to changes in weather conditions. Further, when the solar cell and the wind power generator are used in combination, the size of the solar cell can be reduced, so that the manufacturing cost can be further reduced. Further, since power generated by the wind power generator at night, which cannot be generated by the solar cell, can be stored, no commercial power supply is required or the power consumption of the commercial power supply can be reduced, so that installation costs and maintenance costs are reduced. be able to.

A solar lighting apparatus according to a fourth aspect of the present invention is a solar cell or wind power generator based on the power of the solar cell or wind power generator and the power of the solar cell or wind power generator measured by the power meter. And a charging control circuit that controls charging of surplus power of the device. With this configuration, the charging efficiency of the surplus power generated by the solar cell or the wind power generation device is improved, and the cost of the solar lighting device can be further reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a solar lighting device according to the present invention will be described with reference to FIGS. 1 and 2A and 2B. FIG. 1 is a block diagram illustrating a schematic configuration of a solar lighting device 10 according to the present invention, and FIG. 2 is a diagram illustrating an embodiment of the solar lighting device 10, wherein FIG. (B)
Is a longitudinal side view.

First, a schematic configuration of a solar lighting device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2A and 2B. As shown in FIG. 1, a solar lighting device 10 according to the present embodiment includes a conventional solar lighting device 7 shown in FIG. 3.
0, the driving device 76, the solar cell 86, the driving device 7
Microcomputer 24 which is a control device for controlling computer 6
(In the drawings and in the following description, it is abbreviated as “microcomputer”).

On the other hand, the solar lighting device 10 in the present embodiment further includes a wind power generator 20 and a power measuring device 32.
And a charging device 22 such as a battery for charging surplus power generated in the wind power generation device 20 or the solar battery 86. Have.

The solar lighting device 10 according to the present embodiment
2A and 2B, a generator (not shown) is incorporated in a streamlined body 20a, and a tail body 20a is provided by a tail fin 20d. The propeller 20b attached to the tip is adjusted so that it is always perpendicular to the wind direction, the propeller 20b is rotated by the wind, and the generator is driven in conjunction with the propeller 20b.

With the above configuration, the basic operation of the solar lighting device 10 according to the present embodiment will be described with reference to FIGS. 1 and 2A and 2B. In the sunlight collecting device 10 of the present embodiment, the lighting prisms 72a, 7
The basic operation of controlling the rotation position of 2b to be appropriate is the same as that of the above-described conventional solar lighting device 70 shown in FIGS. 3A and 3B, and thus a detailed description is omitted.

On the other hand, as described above, the power supply source of the driving device 76 for the daylighting prisms 72a and 72b is
6 and the wind turbine generator 20. Therefore, when the amount of solar radiation is large and the generated power of the solar cell 86 is large, the driving device 76
The power of the microcomputer 24 is supplied from the solar cell 86.
When the amount of solar radiation is small due to rain or cloudy weather, power is supplied from the wind power generator 20 or the charging device 22.

By the way, the daylighting prisms 72a and 7a may have a large amount of solar radiation such as during the day and a large amount of power generated by the solar cell 86, or a strong wind and a large amount of power generated by the wind power generator 20.
In the case where power is generated more than the power consumption of the driving device 76 or the microcomputer 24 that drives the 2b and the surplus power is generated, the surplus power of the solar cell 86 and the wind power generator 20 is controlled by the charge control device 30 shown in FIG. Is measured by the power measuring device 32 incorporated in the charging control device 30, and the charging device 22 is charged by the charging control circuit 34.

At night, no power is generated by the solar cell 86, but since the driving device 76 for the daylighting prisms 72a, 72b does not need to be driven, the power generated by the wind power generator 20 is charged throughout the night. The device 22 can continue to charge.

Therefore, the solar cell 86 and the wind power generator 20
By combining the above, the power generation capacity of the solar lighting device 10 of the present invention can be improved. For this reason,
Since a commercial power supply is unnecessary or the amount of power consumed by the commercial power supply can be reduced, the maintenance cost can be reduced.
Alternatively, since the area of the solar cell 86 can be reduced by an amount corresponding to the power generated by the wind power generation device 20, the manufacturing cost of the solar light collecting device 10 can be reduced. Since the burden on the solar cell 86 is reduced,
It can be installed in a place where a sufficient amount of solar radiation cannot be expected, and the usage of the solar light collecting device 10 is expanded.

By combining the solar battery 86, the wind power generator 20 and the charging device 22, it becomes possible to flexibly respond to changes in weather conditions.
Maintenance becomes easier and maintenance costs can be reduced. Conventionally, power could not be generated at night, but the power generated by the wind power generator 20 can be stored, so that clean energy is fully utilized in conjunction with the solar battery 86 and used together with a commercial power supply. Even in this case, the power consumption of the commercial power supply can be reduced, which can contribute to solving environmental problems. Furthermore, since a commercial power supply can be dispensed with, wiring and the like for the commercial power supply are not required, so that the manufacturing cost and the installation cost of the solar lighting device 10 can be reduced, and the solar light collecting device 10 can be used in a place where the commercial power supply is not provided. Use becomes possible, and the utility value of the solar lighting device 10 increases.

The solar lighting device of the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above-described embodiment, a propeller type wind turbine having a streamlined body has been described as an example of a wind power generator, but this may be a wind turbine type wind power generator. In addition, when used in a place where constant wind power can always be expected, such as a specific mountain area, a solar cell or a charging device is not required, and a solar lighting device having a configuration excluding these components is also included in the present invention. Of course.

[0031]

The solar lighting device of the present invention has the following excellent effects because it is configured as described above. (1) As described in claim 1, the daylighting unit for daylighting, the driving device for driving the daylighting unit, and the driving device are controlled so that the daylighting unit is at an appropriate position according to the position of the sun. And a wind power generator that supplies power to the drive unit, it is possible to effectively use the clean energy of wind power, which allows a wider range to respond to changes in weather conditions and eliminates the need for solar cells. Therefore, the manufacturing cost can be reduced. (2) In addition, since a commercial power supply is not required or the amount of power consumption of the commercial power supply can be reduced by the amount of power generated by the wind power generator, installation costs and maintenance costs can be reduced. (3) Further, it can be used in places where the amount of solar radiation is insufficient due to the shadow of a building or the like, and the use of the solar light collecting device is expanded.

(4) As described in claim 2, a daylighting unit for lighting the sunlight, a driving device for driving the daylighting unit, and driving the daylighting unit to an appropriate position corresponding to the position of the sun. With a configuration that includes a control device that controls the device, a solar cell that supplies power to the drive device, and a wind power generator that supplies power to the drive device, clean energy called wind power can be used effectively, and it is used in combination with the solar cell. By doing so, the range that can respond to changes in weather conditions is further expanded, the load on the solar cell is reduced, and the area of the solar cell can be reduced, so that manufacturing costs can be reduced. (5) Further, similarly to the first aspect, since a commercial power supply is unnecessary or the power consumption of the commercial power supply can be reduced, the installation cost and the maintenance cost can be reduced.

(6) According to the third aspect of the present invention, when a charging device for charging the surplus power of the solar cell or the wind power generator is provided, the surplus power generated by the solar cell and the wind power generator is charged. Can be stored in
It becomes possible to respond flexibly to changes in weather conditions. (7) When a solar cell and a wind power generator are used together, the size of the solar cell can be reduced, so that the manufacturing cost can be further reduced. (8) Further, since the power generated by the wind power generator at night, which cannot be generated by the solar cell, can be stored,
Since a commercial power supply is unnecessary or the amount of power consumption of the commercial power supply can be reduced, installation costs and maintenance costs can be reduced.

(9) As described in claim 4, the power measuring device of the solar cell or wind power generator and the power of the solar cell or wind power generator based on the power of the solar cell or wind power generator measured by the power measuring device. When configured to include a charge control device including a charge control circuit that controls charging of surplus power, the charging efficiency of surplus power generated by the solar cell or the wind power generation device is improved, and the cost of the solar lighting device is further increased. It can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a solar lighting device of the present invention.

FIG. 2 is a view showing one embodiment of a solar lighting device according to the present invention, wherein (A) is a plan view and (B) is a longitudinal side view.

3A and 3B are diagrams showing an embodiment of a conventional solar lighting device, wherein FIG. 3A is a plan view and FIG. 3B is a longitudinal side view.

FIG. 4 is a vertical cross-sectional side view in a case where a conventional sunlight collecting device is attached to a roof of a building to collect sunlight in a room.

[Explanation of symbols]

 10: Solar Lighting Device 20: Wind Power Generation Device 22: Charging Device 24: Microcomputer (Control Device) 30: Charging Control Device 32: Power Measurement Device 34: Charging Control Circuit 72a, 72b: Lighting Prism (Lighting Unit) 76: Drive Device 86: Solar cell S1, S2: Sun L: Sunlight

Claims (4)

[Claims] 1. A lighting unit for lighting sunlight, a driving device for driving the lighting unit, and a control device for controlling the driving device so that the lighting unit is at an appropriate position according to the position of the sun. And a wind power generator for supplying electric power to the driving device. 2. A lighting unit for lighting sunlight, a driving device for driving the lighting unit, and a control device for controlling the driving device so that the lighting unit is at an appropriate position according to the position of the sun. A solar lighting device comprising: a solar cell that supplies power to the driving device; and a wind power generator that supplies power to the driving device. 3. The solar lighting device according to claim 1, wherein the solar lighting device is provided with a charging device for charging surplus power of a solar cell or a wind power generation device. 4. A power measuring device for the solar cell or wind power generator, and charging for controlling charging of surplus power of the solar cell or wind power generator based on the power of the solar cell or wind power generator measured by the power measuring device. The solar lighting device according to claim 3, further comprising a charging control device including a control circuit.