JPH0523507B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of constructing a solar energy conversion panel.

[Prior Art] Conventionally, solar energy conversion panels such as solar cells and solar water heaters are constructed in the form of a flat plate, and the panels are installed so as to be tilted toward the south. Therefore,
When arranging these panels, they must be arrayed facing south at regular intervals.

[Problem to be solved by the invention] The reason why the panel is tilted toward the south is to increase the density of sunlight incident on the panel, but on the other hand, sunlight incident from the north cannot be used. . Furthermore, when arranging panels, it is necessary to arrange them at regular intervals, and sunlight incident in the middle of the arrangement cannot be used.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a solar energy conversion panel that can more effectively utilize sunlight from all directions when using sunlight in solar cells, solar water heaters, etc. It is something. The present invention will be explained below.

[Means for Solving the Problems] FIG. 1a is a schematic configuration diagram of a solar energy conversion panel of the present invention, and FIG. 1b is a perspective view thereof. In the figure, 11 is a flat panel, 12 is a prism type condenser, and 13 is a panel in which the prism type condensers 12 are arranged.

It is characterized by a structure in which a flat solar energy conversion panel is joined at a certain angle in an L-shape to one side of a panel in which prism-type concentrators having solar energy conversion elements on the light-receiving surface are arranged. .

[Function] A prism-type concentrator is a wedge-shaped condenser made of a transparent dielectric medium, as shown in FIG. It is made by joining. The principle is that light 34 incident through the aperture surface 31 is guided to the light receiving surface 33 by utilizing specular reflection or total reflection at the bottom surface 32 and total reflection at the aperture surface 31 . The range of the incident angle h of the light 34 that can be focused on the light receiving surface 33 is determined according to the aperture angle α of the prism tip. According to a computer simulation, if the tip of the prism faces south, the elevation angle β is set in the range of 10° to 20°, and the opening angle α is approximately 10° to 15°.
It is shown that the average density of sunlight reaching the light receiving surface 33 is the highest. (Refer to Fujiwara et al., “Sunlight concentration characteristics by prism-type concentrators”, Proceedings of the 9th Research Presentation of the Japan Society of Solar Energy)
In this way, it is more effective to install a prism-type concentrator facing north. On the other hand, since ordinary flat panels are suitable for installation facing south, a highly effective panel can be constructed by combining the two. In other words, if you configure a roof-type panel with a prism-type concentrator on the north side and a regular flat panel on the south side, you can effectively utilize sunlight from all directions, and you can also arrange panels in this shape. This means that it can be installed without any gaps, which greatly contributes to the effective use of land.

[Example] FIG. 2 shows an example. Figure 2 shows a normal flat panel 21 facing south and a panel 23 with prism type concentrators 22 arranged on a flat plate facing north.
These are joined together in a north-south direction.

[Effects of the Invention] As explained above, the solar energy conversion panel of the present invention is a panel in which a prism-type concentrator is arranged on the north side of an ordinary flat panel, and sunlight incident from the north side is also absorbed. There are advantages available.

The effects of the present invention include the following points.

- Sunlight from all directions can be used effectively.

- The north side is also used effectively.

- Land can be used effectively because it can be arranged without any gaps.

- Since the panel has a well-balanced shape, the frame that supports the panel can be greatly simplified.

[Brief explanation of drawings]

FIG. 1a is a schematic configuration diagram of the present invention, FIG. 1b is a perspective view thereof, FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention, and FIG. 3a is a schematic configuration of a prism type condenser. Figure 3b is a perspective view thereof. In the figure, 11 and 21 are flat panels, 12 and 22
is a prism type condenser, 13 and 23 are panels in which the prism type condensers 12 and 22 are arranged, 31 is the aperture surface of the prism type condenser, 31 is the bottom surface of the prism type condenser, and 33 is a prism type condenser. Light receiving surface of condenser, 34
is the incident light.

Claims (1)

[Claims] 1. A solar panel characterized in that a flat solar energy conversion panel is joined at a certain angle in an L-shape to one side of a panel in which prism-type concentrators having solar energy conversion elements on the light-receiving surface are arranged. Energy conversion panel.