JPS59121883A - Solar energy collecting device - Google Patents

Abstract

PURPOSE:To improve the utility efficiency of solar light energy by integrally providing a photoconductor and a solar battery on the light receiving surface for focusing the solar light. CONSTITUTION:A solar light L1 which is introduced into a hollow light path 11 from a light receiving port 12 having relatively wide area is reflected on the tapered wall surface of a hollow light path, focused and transmitted to a light outlet port 13 having relatively narrow area, introduced into a photoconductor 20 arranged at the light receiving end at the port 13, transmitted to the desired position, and utilized as light energy, but in this case, a solar battery 30 is arranged at the light outputting end side of a transparent plate 10 to the light component in which incident angle is displaced, and converted into electric energy to be utilized. In this case, the outlet port 13 side of the plate 10 is formed at the peak state 17 toward the port 13. Then, the light introduced into the plate 10 can be focused. Accordingly, the utility efficiency of the solar battery 30 can be raised, and the weight of the plate 10 can be simultaneously reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a solar energy collection device that can effectively collect solar energy as light energy and electrical energy.

BACKGROUND ART Recently, there has been active research and development into the effective use of solar energy. It is conceivable to convert it into form of energy and use it. +r+i L, it is clear that if sunlight is directly used as light energy, it will be most efficient without any conversion loss, and from this point of view, the applicant has It has been proposed that solar light be introduced into a light guide, transmitted through the conductor, and transmitted to a desired location for illumination or other purposes, such as for use as a nurturing light source for chlorella. death·
When focusing the light using a lens and introducing it into the light guide, since the sunlight contains light of various wavelength components and the lens has chromatic focusing, it is difficult to focus the light of all wavelength components on the same point. Therefore, it is difficult to introduce light of all wavelength components into a single light guide. Like the light converging device δ, it has a light receiving aperture with a relatively wide area and a light output 1 with a relatively irregular area, and inside! A conical body whose Y plane is formed as a reflective surface is used to direct sunlight introduced through the light receiving port having a relatively wide area to the light exit port having a relatively narrow area while reflecting it on the reflective surface. When sunlight is focused in this way and the sunlight thus focused is introduced into a light guide, only direct sunlight can be focused, and indirect sunlight cannot be used.

Purpose The present invention has been made in order to overcome the drawbacks of the prior art such as "double beam" and to effectively focus sunlight and introduce it into a light guide so that it can be used as light energy. At the same time, the solar light that was not introduced into the light guide is effectively focused and guided to the solar cells so that it can be used as an electrical energy channel, thereby improving the efficiency of using solar energy.

Figure 1 is a partial side sectional view showing an embodiment of the solar energy collecting device according to the present invention, Figure 2 is a plan view as seen from the TI-II line, and Figure 3 is a side view of an embodiment of the solar energy collection device according to the present invention. ■This is a bottom view seen from the line direction. In the figure, 10 is a transparent plate, 20 is a light guide, 30 is a solar cell, and the transparent plate 10 is provided with a large number of hollow optical paths 11 as shown in the figure. There is. In each hollow optical path 11, a light receiving port 12 has a relatively large area, a light exit port 13 has a relatively narrow area, and discontinuous tapered surfaces 14, 15 . 16, and the direct sunlight introduced into the hollow optical path 11 from the light receiving port 12 is
The light is reflected by these tapered surfaces and guided to the light exit side 13. At this time, the light reflected from the upper part A of each tapered surface reaches A' of the light exit, and the light reflected from the lower part B The reflection angle of the tapered surface is formed so that B' reaches B' (
Regarding the reflection angle of this taper, if necessary, please refer to Japanese Patent Application No. 55-157979, which was previously proposed by the present applicant). In this way, the direct sunlight introduced into the hollow optical path 11 through the light receiving opening 12 with a relatively wide area is deflected by the tapered wall surface of the hollow optical path, and is focused and transmitted to the light output opening 13 with a relatively narrow area. The light is placed in a light guide 20 with a light receiving end disposed at the light output port 13, and is transmitted through the light guide 2 to a desired location and used as light energy, but at that time, Light components whose incident angles are off, that is, indirect sunlight and light components that have reached surfaces other than the light-receiving aperture, enter the transparent plate lo, and these light components are not introduced into the light guide 20, and the light energy is It cannot be used as such. The present invention aims to utilize solar energy efficiently by effectively utilizing such light components.As shown in the figure, a solar cell 3o is arranged on the light output end side of a transparent plate 10. However, the sunlight introduced into the transparent plate 10 as described above is converted into electric power by the solar cell 30 and used.

In addition, at that time, the light exit 13 side of the transparent plate 30 is connected to each light exit []
If the transparent plate 13 is formed into a pointed shape 17 toward the
Since the light entering inside can be focused at the pointed portion 17, the usability of the solar cell 30 can be increased, and at the same time, the weight of the transparent plate 10 can be reduced. When automatically tracking the light receiving surface of the transparent plate 10 in the direction of the sun, the automatic tracking operation can be performed quickly.

Effects As is clear from the above explanation, according to the present invention, it is possible to effectively focus large sunlight and use it as light energy using a cylinder structure without using a focusing means such as a lens. By effectively concentrating sunlight that could not be used as light energy and using it as electrical energy, we can further improve the effective use of solar energy. .

[Brief explanation of drawings]

FIG. 1 is a partial side sectional view showing an embodiment of a solar energy collection device according to the present invention, and FIG. 2 is a partial side sectional view. FIG. 1 is a view taken from the II-II line direction, and FIG. 3 is a view taken from the ■-M line direction of FIG. 2. 10... Transparent plate, 20... Photoconductor, 30... Solar cell.

Claims (2)

[Claims] (1) A light receiving end is arranged at the light output 11 with a hollow optical path or a plurality of transparent plates arranged in parallel to achieve a relatively wide self-sustaining light reception ``■ and a relatively narrow area light output IJ. A light guide and a solar pond arranged on the surface of the light output r''J side of the transparent lpl plate are connected to each other, and the sunlight introduced from the light reception [1] is reflected on the light surface of the hollow optical path. It is reflected and guided to the 11j recording/receiving i end so that it is introduced into the r'+ near recording light/9 body, and the sunlight introduced into the 6 bright inner number is guided to the solar cell through the transparent plate. A solar energy collection device characterized by: (2) The light-receiving "1 side surface of the transparent plate is formed in a pointed shape toward each light output port, and the solar cells rFj or fkL are installed on the pointed end surface. A solar energy collection device according to claim (1).