JPH0864019A - Daylighting installation - Google Patents

Abstract

PURPOSE: To provide the daylighting installation which can be installed to a building with no extensive modification made without fear that the roof leaks in the room. CONSTITUTION: The daylighting installation 8 is made up of a daylighting unit 9, a light duct 10 disposed in a place starting from the lower end of the daylighting unit 9 over to a room, and of a reflecting mirror 11 disposed at the corner section of the light duct 10, and the daylighting installation 8 is installed in a space starting from the eaves 12 of a building 1 over to the wall 6 of a room 5 to which light is directed. The daylighting unit 9 is made up of one or a plurality of plate prisms 33 which are projected out of the roof 2 of the building 1 in such a way as to be freely rotated in the horizontal direction, and of a control mechanism controlling the plate prisms 33 in rotation to form a proper prism angle in response to the movement of the sun. Besides, the installation of the plate prisms may be transformed into another configuration where the plate prisms are disposed along the slope of the roof 2 and the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a daylighting device for guiding sunlight into a room.

[0002]

2. Description of the Related Art A conventional sunlight collecting device is constructed, for example, as shown in FIG.

In the figure, 1 is a building and 2 is a roof of the building 1. Reference numeral 3 denotes a sunlight collecting device, which is composed of a lens 3a, a light duct 3b, reflecting mirrors 3c and 3d and a diffusing plate 4 which are respectively arranged at the bent portions in the light duct 3b. As shown in the figure, the sunlight collecting device 3 has a structure in which a hole having a predetermined size is cut out in the roof 2 to install these components. Although not shown, the lens 3a is provided with a system including a microcomputer for controlling the inclination of the lens 3a and the like. I am trying to lead to.

Reference numeral 5 is a room through which sunlight is guided, 6 is a building wall, and 7 is a window.

Conventionally, as in the above-mentioned structure, sunlight is collected by the lens 3a, and the light duct 3b, the reflecting mirrors 3c, 3 are provided.
The light was guided into the chamber 5 via d and diffused by the diffusion plate 4. The path of sunlight to the chamber 5 is indicated by a thick dotted arrow. In the case of a one-story building, the one shown in the figure shows a two-story building, but in the case of a two-story building, a light duct or an optical fiber or the like is further provided to guide the sunlight collected in the second floor room to the first floor room It was necessary to provide the light guide means.

A configuration is known in which the lens 3a is replaced with a mirror.

[0007]

In the conventional solar lighting device, the lighting part is installed on the roof part of the building as described above, and the light is guided to each room through the light guide means provided on the ceiling. Because of this, there were the following problems. (1) The installation work of the daylighting device is a troublesome work because it involves a large-scale modification including a duct work from the roof to the room through the attic. (2) Since it is necessary to make a hole for installing a daylighting section on the roof, there is a risk of rain leakage in the room due to long-term use, even if it is carried out with considerable accuracy. (3) Further, in the case of the configuration of the daylighting unit using the lens and the mirror, the control for tracking the sun requires a highly accurate technique, and the production of the control program becomes expensive.

The present invention has the above-mentioned problems (problems) of the conventional ones.
It is an object of the present invention to provide a sunlight collecting device that solves the above problem.

[0009]

In order to solve the above-mentioned problems, the sunlight collecting device of the present invention includes a daylighting device, a light duct arranged from the lower end of the daylighting device to a room, and a light duct inside the light duct. A solar lighting device having a reflecting mirror arranged in a bent portion, the solar lighting device being mounted over a wall surface of a room for guiding light from the eaves of the building, and the lighting device protruding from the roof of the building. And one or a plurality of flat plate prisms rotatably provided in the horizontal direction, and a control mechanism for controlling the rotation of these flat plate prisms so that the prism angle becomes an appropriate prism angle according to the operation of the sun.

In this case, it is desirable that the flat plate prism of the daylighting device is arranged so as not to project along the slope of the roof of the building to which the present device is applied.

Further, a first flat plate prism installed on the eaves of a building near the room for guiding sunlight so as not to project along the slope of the roof of the building, and a first prism provided on a wall for guiding sunlight in the room. The first flat plate prism is rotated and controlled so that the first flat plate prism has an appropriate prism angle according to the operation of the sun, and the sunlight collected by the first flat plate prism is changed to the second flat plate prism. It may be configured so as to be introduced into the room via the.

In each of the above cases, it is desirable to dispose a diffuser plate on the indoor side emission part of the sunlight collecting device.

[0013]

In the sunlight collecting device of the present invention, the flat plate prism provided in the daylighting section is rotated so as to have an appropriate angle according to the operation of the sun, but the portion to be attached to the eaves is composed of one or a plurality of flat plate prisms. Since the rotation mechanism and the optical duct etc. can be installed on the ground, the parts attached to the eaves can be made lightweight and compact. Therefore, it is possible to perform the retrofitting work of this device without significantly modifying the building.

Further, unlike the conventional one, there is no need to install light guide means such as a light duct on the roof of a building,
Also, since there is no need to make holes in the roof, there is no need to worry about rain leaks into the room.

Further, since the flat plate prism is used for the daylighting portion of the daylighting device, the tracking control program does not need to be highly accurate as compared with the case where the conventional lens mirror is used, so that the tracking control program is inexpensive. Can be manufactured.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the first to third embodiments shown in FIGS.

First Embodiment: FIG. 1 shows a first embodiment of the present invention. In FIG. 1, the same components as those of the conventional one are designated by the same reference numerals as those in FIG.

In the figure, 1 is a building to which the device of the present invention is applied, 2 is its roof, 6 is a wall, and 7 is a window.

Reference numeral 8 is a sunlight collecting device of the present invention. The sunlight collecting device 8 is arranged over a daylighting device 9 having a flat plate prism 33 and a wall of a chamber for guiding light from the lower end of the daylighting device 9. The optical duct 10 and the reflecting mirror 11 arranged at the bent portion in the optical duct 10 are installed in the eaves 12 of the building 1 by cutting out a required portion.

Reference numeral 13 denotes a diffuser plate which is provided on the indoor side emission part 8a of the sunlight collecting device 8 as occasion demands.

The daylight collector 9 is constructed, for example, as shown in FIG.

In FIG. 2, 31 is a support frame, 32 is a transparent hood, and 33a and 33b are flat plate prisms (see FIG. 1).
Is shown as one flat plate prism 33), 34
a to 34d are bearings, 35a1 and 35b1 are motors, 35a2 and 35b2 are gears, 36 is a power source, 3
7a to 37c are sources, 38 is a motor drive circuit, 39
Is a central processing unit such as a microcomputer (hereinafter CPU)
It is).

Incidentally, a daylighting device 9 constructed as shown in FIG.
The flat plate programs 33a, 33 according to the operation of the sun by a program provided in the CPU 39 in advance.
motor 35a1 so that the prism angle of b is always appropriate.
35b1 is instructed to control rotation, and each prism 33
It is assumed that the sunlight emitted through a and 33b operates so as to become parallel rays in the vertical direction.

In the above structure, the flat plate prisms 33a and 33 have the structure shown in FIG. 2 corresponding to the operation of the sun.
Since the prism angle of b is controlled, the light emitted from the daylight collector 9 is always vertical light.

As shown in FIG. 1, the sunlight thus collected by the daylighting device 9 is reflected by the reflecting mirror 11 in the light duct 10 to reach the emitting portion 8a, and when the diffuser plate 13 is not provided, Directly introduced into the chamber 5. In this case, when the diffusion plate 13 is provided as shown in FIG. 1, the light diffused through the diffusion plate 13 is guided into the chamber 5.

The path of sunlight guided by the device of this embodiment into the room is indicated by a thick dotted arrow.

Further, when the window 7 is provided as in this embodiment, sunlight is introduced into the room 5 through the window 7 as well, but for a room having only the wall without the window 7. Another feature of the present invention is that the sunlight can be taken into the room from the sunlight collecting device attached to the eaves.

Second Embodiment: FIG. 3 shows a second embodiment of the present invention. In FIG. 3, the components corresponding to the first embodiment are designated by the same reference numerals as those in FIG. The description was omitted. Reference numeral 14 is a daylighting device according to the present embodiment.
Reference numeral 4 denotes one flat plate prism 15 rotatably arranged in a direction along the slope of the roof 2 (when a plurality of flat plate prisms are arranged, they may be arranged at a predetermined interval vertically as shown in FIG. 2). This is a flat prism 15
According to FIG. 2, by separately arranging the respective components such as the motor and the CPU, the rotation can be controlled at an appropriate speed so that the incident light becomes appropriate according to the sun altitude.

Reference numeral 16 is a light duct arranged below the flat prism 15 over the wall of the room for guiding sunlight, 17 is a reflecting mirror arranged at a bent portion in the light duct 16, and 13 is a daylight collector 14. Is a diffusing plate disposed as necessary in the light emitting portion 14a.

The structure of this embodiment is substantially the same as that of the first embodiment, and by disposing the flat plate prisms 15 arranged in the daylight collector 14 along the slope of the roof 2,
It is superior in the aesthetics of the building to the horizontally installed type like the flat plate prism 33 of the daylighting device 9 of the first embodiment.

Also in the case of this embodiment, the sunlight can be taken in the same way as in the case of the first embodiment and can be guided into the room, and the traveling direction of the light is shown by the thick dotted arrow. There is.

Third Embodiment: FIG. 4 shows a third embodiment of the present invention. In the figure, the components corresponding to those of the second embodiment are designated by the same reference numerals as those in FIG. The description is omitted.

Reference numeral 18 denotes the daylighting device of this embodiment.
8 is the first arranged on the eaves 12 along the roof 2 as shown
Flat plate prism 19a and the first flat plate prism 19
The second flat plate prism 19b is formed by notching and attaching a part of the wall 6 on the emission side in order to take in the sunlight collected in a.

Reference numeral 13 is a diffusion plate facing the flat plate prism 19b and provided on the indoor side as required.

In this embodiment, the light duct 16 and the reflecting mirror 17 of the second embodiment are not used, and the light is guided directly from the first flat plate prism 19a of the daylight collector 18 to the second flat plate prism 19b, and the inside of the chamber 5 is Through the diffusion plate 13 or the diffusion plate 13
If there is not, there is a structural feature in that the light is guided directly. Also in this case, as in the case of the first and second embodiments, sunlight can be taken and guided into the room, and the traveling direction of the light is shown by the thick dotted arrow.

[0036]

Since the sunlight collecting device of the present invention is constructed as described above, it has the following excellent effects. (1) Since a flat plate prism is used as a main constituent element of the daylighting section, the daylighting machine can be made lightweight and compact, and the entire apparatus can be installed over the eaves of the building and the wall of the room that guides light. it can. Therefore, the retrofitting work of the device can be easily performed without making a large modification to the existing building. (2) Since the daylighting section of the solar lighting device is installed on the eaves instead of on the roof as in the conventional case, there is no fear of rain leakage in the room. (3) Since the sunlight is tracked using the flat prism, the accuracy of tracking control does not require higher altitude than that of tracking using a lens or a mirror, so that the daylight collector can be manufactured at low cost. (4) If the roof slope and the roof slope are integrated as in the second and third embodiments, the appearance of the building can be felt naturally. (5) If the optical duct and the reflecting mirror are omitted as in the third embodiment, the sunlight collecting device can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a main part of a building to which a first embodiment of a sunlight collecting device of the present invention is applied.

FIG. 2 is a schematic front view showing a configuration example of a daylighting device used in the sunlight daylighting device of the present invention.

FIG. 3 is a vertical sectional front view of a main part of a building to which a second embodiment of the sunlight collecting device of the present invention is applied.

FIG. 4 is a vertical sectional front view of a main part of a building to which a third embodiment of the sunlight collecting device of the present invention is applied.

FIG. 5 is a vertical cross-sectional front view of a main part of a building to which a conventional sunlight collecting device is applied.

[Explanation of symbols]

 8: Sunlight collecting device 9, 14, 18: Daylighting device 10, 16: Light duct 11, 17: Reflecting mirror 12: Eaves 13: Diffusing plate 14a: Emitting part 15, 19a, 19b, 33: Flat plate prism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kodaira 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Fusao Terada 2-chome, Keihanhondori, Moriguchi-shi, Osaka 5-5 Sanyo Denki Co., Ltd. (72) Inventor, Susumu Takashi 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Denki Co., Ltd.

Claims (4)

[Claims] 1. A solar lighting device comprising a daylighting device, a light duct arranged from the lower end of the daylighting device to an interior of the room, and a reflecting mirror arranged in a bent portion in the light duct.
This solar lighting device is mounted over the wall surface of a room that guides light from the eaves of a building, and the lighting device is one or more flat plate prisms protruding from the roof of the building and rotatably provided in the horizontal direction, The solar lighting device is configured to have a control function of controlling rotation of these flat plate prisms so as to have an appropriate prism angle according to the operation of the sun. 2. A solar lighting device comprising a daylighting device, a light duct arranged from the lower end of the daylighting device to the inside of the room, and a reflecting mirror arranged at a bent portion in the light duct.
The solar lighting device is installed over the wall surface of the room that guides light from the eaves of the building, and the lighting device is arranged so as not to project along the slope of the roof of the building, and one or more rotatably provided A solar light collecting device comprising: a single flat plate prism; and a control function for controlling the rotation of the flat plate prism so as to have an appropriate prism angle according to the operation of the sun. 3. A first flat prism mounted on an eave of a building near a room for guiding sunlight so as not to project along the slope of the roof of the building, and a first prism provided on a wall for guiding sunlight. The first flat plate prism is controlled so that the first flat plate prism has a proper prism angle according to the operation of the sun, and the second sunlight is collected by the first flat plate prism.
The sunlight collecting device is characterized in that it is guided into the room through the flat prism of. 4. The sunlight collecting device according to claim 1, wherein a diffusing plate is arranged in an emission section on the indoor side of the sunlight collecting device.