JP2000031522A - Photovolatic power generation for doubling conversion efficiency, and heat collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which sharply raise the electric conversion efficiency of a solar battery, and performs heat accumulation and warmth keeping by collecting solar heat at the same time with that device. SOLUTION: This heat collector is provided with a multiple reflection solar battery face 9, a solar battery face 10, and a reflection face 11 for heat collection in order from the center circle of a parabola 6, and next herein a convex mirror 7, which holds, for example, its focus point, facing this parabola 6 and is the same in diameter as the multiple reflection solar battery battery face of the parabola 6 and is provided with a multiple reflection solar battery face 3 at the surface, is installed. The synthetic electric conversion efficiency is doubled by changing the reflected light from a convex mirror 7 which occupies a great part of the reflected condensed light from such a parabola 6 and the solar battery face of the parabola 6 and its gap from the convex mirror 7 to the convex mirror 7, and the reflected light inverted to the multiple reflection solar battery face on the parabola 6 and further to the convex mirror 7, too, into electricity. Together with this, the condensed light from the reflection face for heat collection at the hem is hit upon the bottom of a heat accumulating warmth keeping container 2 placed at the focus so as to heat heat accumulating material, and then it is put on a vacuum heat insulating stage so as to accumulate heat and keep warmth, and it is utilized for hot water supply for cooking, thus this contributes to the environmental issue of the earth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to the use of sunlight.

2. Description of the Related Art A conventional photovoltaic power generation apparatus does not reuse its reflected light, which accounts for a considerable amount.

[Problem to be Solved by the Invention] In the present invention, 45% of sunlight is wasted on the solar cell surface and the gap between the solar cell surface and the gap. It reciprocates and reflects between the reflective solar cells to double the conversion efficiency into electricity, and optionally heats and retains high-temperature heat energy in a vacuum insulated container using the same device for cooking hot water supply.

[Means for Solving the Problems] A multiple reflection solar cell surface (9), a solar cell surface (10), and a heat collecting reflection surface (11) are provided sequentially from the center circle of the parabola (6) to the outside. Then, a convex mirror (7) facing the parabola, for example, having the same diameter as the multi-reflection solar cell surface and having a multi-reflection solar cell surface on the surface, is provided. With such a parabola and a convex mirror, the reflected light from the convex mirror occupying a considerable part of the reflected and condensed light from the solar cell surface on the parabola and the gap (10) to the convex mirror is reflected on the parabolic multiple reflection solar cell surface (9). Further, the reflected light inverted by the convex mirror is also converted into electricity, thereby condensing the reflected light from the solar cell surface and doubling the total electric conversion efficiency by the multiple reflection. At the same time, the light condensing from the heat collecting reflection surface (11) is applied to the bottom surface of the heat storage / insulation container (2) placed at the focal point, the heat storage material is heated to a high temperature, and then placed on a vacuum adiabatic table to store and heat the heat and cook indoors. Used for hot water supply. In this basic form, regardless of the presence or absence of the outermost heat collecting reflective surface (11) on the parabola (6) (a) Any one or both of the solar cell surfaces on the parabola for power generation (B) The convex mirror (7), the surface of which is a reflecting surface for power generation, and (c) the transparent materials (13), (14) on the surface of the flat battery in which a slight increase in the reflection loss is recognized. (D) A diffuse reflection wall (5) for multiple reflection is provided to increase the amount of power generation. (Po) The multiple reflection solar cell surfaces whose temperature rises are heat pipes and cooling fins (8) from the back side. Cool with. These two solar cells, each having a different wavelength absorption band of sunlight, enhance the total power generation efficiency. The uneven solar cell may be divided into a small planar solar cell.

[Operation] The differential voltage between the solar cell sensors on the outer wall obtained by dividing the irregular reflection outer wall surface (5) into three equal parts is input, and a battery, a motor, and a computer are operated in a timely manner to bring the position of the sun changing every moment. The parabola is tracked face-to-face to get the maximum amount of electricity from the solar cells.

[Effect of the Invention] In solar power generation, a solar cell which has been completely wasted in the past and the reflected light occupying a considerably large amount from the surface of the gap between the solar cell and the solar cell are concentrated to increase the luminous intensity,
On top of that, it was reflected back and forth between the parabola and the multiple reflection solar cell surface on the convex mirror, doubling the amount of power generation and completing a low-cost solar power generation device. At the same time, light is collected from the reflective surface of the outer edge of the parabola for heat collection, and the heat storage material in the heat storage container is heated to a high temperature and can be used for cooking and hot water supply indoors at night, thus protecting the forest and preventing the earth from desertification. We were able to obtain equipment that contributed to

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a photovoltaic power generation and heat collection device that doubles the conversion efficiency.

FIG. 2 is a plan view of a photovoltaic power generation device and a heat collection device that doubles the conversion efficiency.

FIG. 3 is a cross-sectional view of a multiple reflection solar cell surface in which a transparent material on the surface of a flat type battery is formed into an uneven lens shape.

FIG. 4 is a sectional view of a vacuum adiabatic heat storage / insulation container.

[Explanation of symbols]

 1 Sunlight 2 Thermal storage container 3 Multiple reflection solar cell surface on convex mirror 4 Parabola frame 5 Diffuse reflection wall 6 Parabolic 7 Convex mirror 8 Cooling fin 9 Multiple reflection solar cell surface on parabola 10 Solar cell surface 11 Reflection surface for heat collection 12pn type Silicon semiconductor 13 Convex transparent material 14 Concave transparent material 15 Vacuum heat insulating lid 16 Vacuum heat insulating base 17 Bottom surface 18 Vacuum heat insulating side wall 19 Heat storage element

Claims (2)

[Claims] A parabolic dish-type collector (6);
The multiple reflection solar cell surface (9) the solar cell surface (10) in order from the center circle and the center band of the gutter-shaped parabolic mirror to the outside, and the heat collection reflection surface (11) (10, 11 (Including a Fresnel lens surface), and then, facing the parabola (6), a trough-shaped parabolic mirror (hereinafter abbreviated), for example, sharing the focal point and having the same diameter as the multiple reflection solar cell surface (9). A convex mirror (7) provided with a multiple reflection solar cell surface (3) on its surface, and a gutter-shaped convex mirror (hereinafter abbreviated) are provided. With such a parabola and a convex mirror, the reflected light from the convex mirror, which occupies a considerable part of the reflected and condensed light from the solar cell surface on the parabola and the gap (10) to the convex mirror (7), is multiply reflected by the solar cell on the parabola (6). A photovoltaic power generator that doubles the total electric conversion efficiency by condensing the reflected light from the solar cell surface and converting the reflected light, which is inverted by the convex mirror (7) to electricity, and multiple reflection on the cell surface (9). At the same time, the light from the reflecting surface for heat collection (11) is optionally applied to the bottom surface of the heat storage container (2) where the focal point is set, the heat storage material is heated to a high temperature, and then placed on a vacuum insulation table to keep the temperature at night. Heat storage and heat storage device used for cooking hot water supply indoors. 2. In the basic form described above, regardless of the presence or absence of the heat collecting reflection surface (11) on the parabola (6), (a) either one or both of the two solar cell surfaces on the parabola (2) a convex mirror (7) having a reflective surface for power generation; and (c) splitting and installing a small flat type on these solar cell surfaces or increasing the reflection loss slightly. Even if it is recognized, the transparent materials (13) and (14) on the surface include those having a lens shape with irregularities.