JP2001313410A - Condensing-type airtight photovoltaic power generation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the efficiency of photovoltaic power generation using reflected light, by solving the problem that light which is made to irradiate a solar cell or a photovoltaic power generation facility in the conventional cases is scattered mostly into the atmosphere as reflected light and that the efficiency of the photovoltaic power generation (the amount of power generation energy with reference to photovoltaic energy irradiated at a unit area) is lowered. SOLUTION: First, an internally hollow three-dimensional object 2 in which a light incident hole 1 is formed, is prepared. A light 4 is condensed and converged by using an optical convex lens 3, and the light 4 from the hole 1 irradiates the inner surface of the object 2. By aligning the focal position of the lens 3 and the position of the hole 1, the hole 1 can be made smaller, and the level of airtightness for the body 2 can be improved. In this manner, a state where the scattering into the atmosphere of reflected light generated when the light is shone at the solar cell is reduced to a minimum is created, and a photoelectric conversion is performed in the state.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION

The present invention relates to a configuration in a concentrating photovoltaic power generation system for effectively photoelectrically converting light applied to a certain area, and a structure of a solar cell.

[Prior art]

In general, the shape of a solar cell used for photovoltaic power generation is a flat plane, and the method of installing the solar cell is also set in a plane. It is considered that this is because the solar cell is easily formed and the sunlight is irradiated only from a certain direction when the solar light is irradiated. The condensing lens used at that time is used for concentrating light on a solar cell having a fixed area.

[Problems to be solved by the invention]

However, much of the light emitted to such solar cells or solar power generation equipment scatters into the atmosphere as reflected light, and the efficiency of the solar power generation [the solar energy irradiated to a unit area] The amount of power generation energy for energy consumption is low. That is, if the reflected light at that time can be used, it is considered that improvement in efficiency in solar power generation can be expected.

[Means for Solving the Problems]

[0004] In order to utilize the reflected light when the solar cell is irradiated with light, the light is confined in a closed space so that the reflected light does not scatter into the atmosphere. Conversion may be performed.

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment will be described below with reference to FIG. First, an internal hollow three-dimensional object 2 provided with a light incident hole 1 is prepared. As a result, a semi-closed space is created. Then, the light 4 is converged and converged by using the optical convex lens 3, and the light 4 is radiated from the light incident hole 1 to the inner surface of the three-dimensional object 2. At this time, by adjusting the focal position of the optical convex lens and the position of the light incident hole, the light incident hole can be made smaller, and the degree of sealing of the internal hollow three-dimensional object can be improved. In other words, the role of the optical convex lens in the present invention is not to be used for concentrating light on a solar cell having a fixed area, but to irradiate more light to the inner surface of the internal cavity three-dimensional object from a smaller light entrance hole. The purpose is to improve the tightness of the three-dimensional object. In this way, a state is created in which the reflected light when the light is irradiated on the solar battery cells is minimized from scattering into the atmosphere, and photoelectric conversion is performed in this state.

【Example】

[0006] When photoelectric conversion is performed in the above-described form, the following two forms can be considered as the structure of the three-dimensional internal cavity. One is to use a solar cell itself molded into a three-dimensional hollow body, and the other is to use a three-dimensional solar cell with the inner surface of a three-dimensional solar cell. In the above-mentioned method, the molding process is somewhat difficult, but it seems that it is easy to reduce the size of the power generation device alone. In the system described later, a conventional solar cell can be used, but it is considered that the power generation device alone becomes large.

【The invention's effect】

The specific shape and size of the solid three-dimensional object, the size and focal length of the optical convex lens, their materials, and the like are left to future research. In particular, there are various shapes of the three-dimensional internal cavity (especially the shape of the inner surface is important), and the number of times that light comes into contact with the solar cell is increased by considering the geometrical and optical aspects. It is thought that a device that reduces transmitted light will be developed and the efficiency will be further improved.
As described above, the present invention makes it possible to efficiently use solar energy, and it is possible to expect room for future research and development and the effect thereof, and to increase the power generation amount of the solar power generation device. .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of solar power generation showing an embodiment of the present invention.

[Explanation of symbols]

 1. 1. Light incident light Internal hollow three-dimensional object 3. Optical convex lens light

Claims (1)

[Claims] 1. An optical system comprising a three-dimensional internal cavity [a solar cell main body or a solar cell provided on an inner surface] having an optical convex lens and a light incident hole, and condensed and converged using an optical convex lens. A photovoltaic power generation device, which irradiates light to the inner surface of a three-dimensional internal cavity to perform photoelectric conversion.