JPS6127517A - Solar light reflective device - Google Patents

Abstract

PURPOSE:To reflect solar light and to take it into the inside of a house over many hours by moving automatically plural plane mirrors so that the direction of reflected light is always, hole equally in the set direction irrespective of a position of the sum. CONSTITUTION:Plural roughly rectangular plane mirrors 1 are contained in a case whose front has been made of a transparent plate 7, and it is supported so as to be freely rotatable and pivotally in the roughly horizontal direction and in the roughly vertical direction. A photodetecting part 3 is fixed to a position where solar light 4b can be photodetected, and in case when a reflected light 4b is shifted from the set direction, a current is fed to an electrically-driven motor 5. The electrically-driven motor 5 rotates simultaneously plural plane mirrors 1 through an interlocking device 6, and even if the position of the sun is varied, the direction of the reflected light 4b always becomes constant.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar ray reflecting device for reflecting sunlight from outdoors and introducing it indoors.

Since ancient times, humans have enjoyed the benefits of sunlight mainly through windows.However, in recent years, houses have become overcrowded and it is difficult to maintain a large distance between neighboring houses, which makes it difficult to maintain a large distance from neighbors, especially in the winter when the sun's altitude is low. In many cases, it is difficult to get enough sunlight because it is blocked by neighboring houses. The present invention has been made in view of the above circumstances. In other words, by installing the solar ray reflecting device of the present invention outdoors in a place with good sunlight conditions, it becomes possible to reflect sunlight for a long time and bring it indoors regardless of changes in the sun's position. . In addition, multiple small-area mirrors are housed in a fixed, thin case so that the mirrors are not directly affected by stiffness or wind and can be rotated with a small amount of force. This makes the device easy to install, resistant to rain and wind, inexpensive, and with minimal operating costs. The principles, structure, and features of the present invention will be explained below with reference to the drawings.

FIG. 1 is a diagram showing the basic configuration of a solar ray reflecting device according to the present invention. A plurality of substantially rectangular plane mirrors 1 are housed in a case 2. The plurality of plane mirrors 1 are supported by a case 2 so as to be rotatable around a substantially horizontal axis and a substantially vertical axis. The light receiving part 3 is fixed to the case 2 or other structure at a position where it can receive the sunlight 4b, and sends current to the electric motor 5 when the reflected light rays deviate from the set direction. The electric motor 5 simultaneously rotates a plurality of plane mirrors 1 via an interlocking device 6. There are two pairs of electric motors 5 and interlocking devices fIt6, one for rotation around the horizontal axis and one for rotation around the vertical axis, each of which operates independently. Therefore, even if the sun's position II (azimuth and quotient) changes, the direction of the reflected rays always remains constant.

The front surface of the case 2 is made of a transparent plate 7 made of glass or plastic, and the entire case 2 is fixed to the ground or other structure directly or via a frame 8. Because it is housed in case 2 fixed in this way,
The multiple plane mirrors and the plane mirror drive device are not exposed to rain and wind, so they have a long lifespan, and can be manufactured lightweight and inexpensively. Furthermore, it became possible to rotate multiple plane mirrors with a small amount of force, making it possible to minimize operating costs.

FIG. 2 is a diagram showing a mechanism for interlocking and rotating a plurality of plane mirrors. Each of the plurality of plane mirrors 1 has a horizontal rotation axis 2.
The rotating shaft 2 is rotatably supported by seven frames 3. The frame 3 has vertical rotation axes 4 at the top and bottom,
The rotating shaft 4 is rotatably supported by a case 5. The plurality of plane mirrors 1 are rotatably connected to each other by connecting members 6 at the same portion thereof, and the plurality of connecting members 6 are tied together at the upper part and connected to a pulley 7. By rotating the pulley 7 with the electric motor 8, a plurality of planes [1] can be simultaneously rotated around the horizontal axis of rotation. Further, the same portions of the frame 3 are rotatably connected by connecting members 9. The connecting member 9 is connected to a pulley 10, and by rotating the pulley 7 with an electric motor 11, a plurality of seven frames 3 can be simultaneously rotated around a vertical axis of rotation.

FIG. 3 is a diagram showing a control mechanism for tracking the sun, rotating a plurality of plane mirrors in conjunction with each other, and always keeping the direction of reflected light rays in a constant direction. A light receiving device consisting of a screen 1 and seven cells 2a and 2b vertically symmetrically set around the screen is set so that the direction of the screen 1 coincides with the direction of the desired reflected light beam. The output terminals of the seven otocells 2a and 2b are connected to an electric circuit 3, and the output terminal of the electric circuit 3 is connected to an electric motor 4. The electric motor 4 rotates the boot 9-6 via the belt 5. The pulley 6 rotates the plane mirror 8 around the horizontal axis via the connecting member 7. Now, if the reflected sunlight rays 10 reflected by the plane mirror 8 are reflected in a direction that does not match the screen 1 as shown in the figure, the lower side of the screen 1 will be in the shadow, so the 7 otocells 1a and 1b
As a result, a current flows from the output terminal of the electric circuit 3 to rotate the plane mirror 8 via the electric motor 4 belt 5, pulley 6, and connecting member 7. reflected light#! This operation continues until the direction of the screen 10 coincides with the direction of the screen 1, so that the reflected light rays will eventually maintain a constant direction regardless of the position of the sun. Although the figure shows only the case around the horizontal axis, in reality, a similar problem is incorporated also around the vertical axis. Moreover, the electric circuit shown in the figure is only an example.

[Brief explanation of the drawing]

Figure 1 shows the basic configuration. 1 is multiple plane mirrors, 2 is a case, 3
4 is a light receiving unit, 4 is a sunlight beam, 5 is an electric motor, 6 is an interlocking device, 7 is a transparent plate, and 8 is a mount. FIG. 2 is a diagram showing a mechanism for interlocking and rotating a plurality of plane mirrors. 1 is a plane mirror, 2 is a horizontal rotation axis, 3 is 7 frames, 4 is a vertical rotation axis 5 is a case, 6 is an interlocking member,
7 is a pulley, and 8 is an electric motor. FIG. 3 is a diagram showing a mechanism for controlling the direction of reflected light rays to be constant. 1 is a screen, 2 is a 7-cell cell, 3 is an electric circuit,
4 is an electric motor, 5 is a belt, 6 is a connecting member 17-17, 8 is a plane mirror, 9 is a horizontal rotation axis, and 10 is a reflected ray of sunlight. Patent Applicant Benis Environmental Giken Co., Ltd. Representative Director Hatanoyoko Fujimura/B “l’, 31! 1S

Claims (1)

[Claims] 1. A case made of a material with at least one side transparent; a plurality of plane mirrors built into the case and rotatably supported;
and a driving device for automatically interlocking and moving the plurality of plane mirrors so that the direction of the reflected light beam is always kept equal to the set direction regardless of the position of the sun.