CN102013851A - Secondary reflection plane lighting solar power generation device - Google Patents

Abstract

A secondary reflection planar daylighting solar power generation device, the device receives solar energy through the reflective focusing effect of a large plane reflector and a rotating parabolic reflector, which can greatly improve the receiving efficiency of solar energy, and can be used to achieve high-light and low-light environments. Harvesting and receiving solar energy.

Description

Secondary reflection plane daylighting solar power generation device

Technical field:

The invention relates to a solar energy application technology, in particular to a secondary reflection planar daylighting solar power generation device that utilizes the principle of concentrating light on a rotating paraboloid to receive solar energy. .

Background technique:

Solar energy is a kind of clean energy, inexhaustible and inexhaustible, and will not cause environmental pollution. Nowadays, whether in coastal cities or inland cities, solar energy products are increasingly entering people's field of vision. Solar street lights, solar lawn lights, solar garden lights, solar corridor lights, bus station lights, traffic lights, etc., all kinds of solar water heaters have also approached thousands of households. However, most of these solar products do not have the function of concentrating light, resulting in low utilization of solar energy. If the light intensity on the surface of the solar receiving element is doubled, the receiving efficiency of the solar receiving element will be doubled. At present, the focus of technological competition in the solar industry is mainly the competition for solar receiving efficiency. It can be seen that improving the receiving efficiency is important to the entire industry. Therefore, whether Effectively improving the light intensity of solar receiving elements has become the most concerned issue when people utilize solar energy.

In recent years, foreign countries have achieved concentrated solar energy reception in the photovoltaic matrix of some solar power plants, and there are similar test devices in China, but these devices are complex in structure, bulky and expensive, and it is difficult to promote them in solar household products.

Invention content:

In order to overcome the shortcomings of the existing concentrating device, such as complex mechanical structure, bulky volume, and high cost, the present invention aims at the deficiencies of the existing technology, improves the existing technology, and proposes a small volume, simple and reliable structure, and low cost The solar concentrated light receiving device, which can realize the concentrated light reception of solar energy.

The technical scheme adopted by the present invention to solve the technical problem is: a plurality of solar energy concentrating receiving mechanisms are installed in a rectangular box, and a flat transparent cover is covered on the rectangular box, and the flat transparent cover gathers each solar energy. The light receiving mechanism is enclosed in a rectangular box, and the solar concentrating receiving mechanisms are neatly arranged in the rectangular box. Each solar concentrating receiving mechanism is composed of a rotating parabolic reflector and a light energy receiver. The solar concentrating receiving mechanism is divided into Multiple groups, a rectangular large plane reflector is installed in front of each group of solar concentrating receiving mechanism, and the middle seat of each group of large plane reflector has a long straight light incident slit along its long side direction , the large flat reflectors of each group of solar concentrating receiving mechanisms intersect with the flat transparent cover to form an angle of 45°,

The light receivers of each solar concentrating receiving mechanism are composed of a disc-shaped solar panel,

The photoreceiver of each group of solar energy concentrating receiving mechanism is installed on the back side of the light-reflecting surface of this group's large plane reflective mirror, and each disk-shaped solar cell panel of the photoreceiver of each group of solar concentrating receiving mechanism is facing to the The light incident slit of the large plane reflector of group and each disc-shaped solar cell panel is facing the reflective surface of this rotating parabolic reflector, the center of circle of the disc-shaped solar cell panel of the light energy receiver of each solar energy concentrating receiving mechanism Located on the symmetry axis of the rotating parabolic reflector of the solar concentrating receiving mechanism, the focal points of the rotating parabolic reflectors of each group of solar concentrating receiving mechanisms are located on the light incident slits of the large plane reflectors of the group,

When sunlight is incident perpendicular to the plane transparent cover, the incident light can pass through the light incident slit of the large plane reflector after being reflected and focused by the large plane reflectors and rotating parabolic reflectors of each group of solar concentrating receiving mechanisms. On the disk-shaped solar panels of each light energy receiver, the light energy irradiated on the disk-shaped solar panels of each light energy receiver is converted into electrical energy through the disk-shaped solar panels, and passed through the large plane reflectors The reflective focusing effect of the rotating parabolic reflector and the rotating parabolic mirror greatly improves the intensity of sunlight irradiated on the disc-shaped solar cell panels of each light energy receiver, thus greatly improving the photoelectric conversion rate of each light energy receiver.

The beneficial effects of the present invention are: through the reflective focusing effect of each rotating parabolic reflector, the intensity of sunlight irradiated on each light energy receiver is greatly improved, thereby greatly improving the photoelectric conversion rate of each light energy receiver, and realizing It has a high photoelectric conversion rate in both strong light and low light environments.

Description of drawings:

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is A-A sectional view of the overall structure diagram of the present invention.

Fig. 3 is a B-B sectional view of the overall structure diagram of the present invention.

Fig. 4 is an enlarged view of a cross-sectional view of a solar concentrating receiving mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a paraboloid of revolution.

In the composition diagram of the paraboloid of revolution in Fig. 5: the paraboloid of revolution S, the quasi-plane S1 of the paraboloid of revolution, the apex O of the paraboloid of revolution, the focal point f of the paraboloid of revolution, and the symmetry axis L of the paraboloid of revolution.

Detailed ways:

In Fig. 1, Fig. 2 and Fig. 3, 25 solar concentrating receiving mechanisms are installed in a rectangular box 3-1, and the 25 solar concentrating receiving mechanisms are divided into five groups. A plane transparent cover plate 4-1 is covered on the top of the plane, and the plane transparent cover plate 4-1 seals each solar energy concentrating receiving mechanism in the rectangular box body 3-1, and each solar energy concentrating receiving mechanism is neatly arranged in the rectangular box body 3 In -1, each solar concentrating receiving mechanism is composed of a rotating parabolic reflector and a light energy receiver,

Large flat reflector 1-1-1 is all installed in front of the reflective surface of the rotating parabolic reflector of the first group of solar concentrating receiving mechanism, and all is installed in front of the reflective surface of the rotating parabolic reflector of the second group of solar concentrating receiving mechanism Large plane reflector 1-1-2 has been installed, and large plane reflector 1-1-3 has been installed in the front of the reflective surface of the rotating parabolic reflector of the third group of solar concentrating receiving mechanism, and in the fourth group of solar concentrating Large plane reflectors 1-1-4 are installed in front of the reflective surface of the rotating parabolic reflector of the receiving mechanism, and large flat reflectors 1 are installed in front of the reflective surface of the rotating parabolic reflector of the fifth group of solar concentrating receiving mechanisms -1-5, the middle seat of the above-mentioned five large plane reflectors is provided with a long and straight light incident slit along its long side direction, and the above-mentioned five large plane reflectors intersect with the plane transparent cover plate 4-1 to form 45 ° angle,

Provided in Fig. 4 is the structure of the first solar energy concentrating receiving mechanism, in Fig. 4 the first solar concentrating receiving mechanism is made of rotating parabolic reflector 1-2-1 and light energy receiver 1-3-1, light energy The receiver 1-3-1 consists of a disc-shaped solar panel 10-1,

The light energy receiver 1-3-1 is installed on the back side of the reflective surface of the large plane reflector 1-1-1, and the disc plane of the disc-shaped solar cell panel 10-1 faces the large plane reflector 1-1-1 light incident slit, the disc plane of the disc-shaped solar cell panel 10-1 is facing the reflective surface of the rotating parabolic reflector 1-2-1, and the center of the disc plane of the disc-shaped solar cell panel 10-1 is located at On the axis of symmetry of the rotating parabolic reflector 1-2-1, the disc plane of the disc-shaped solar panel 10-1 is perpendicular to the axis of symmetry of the rotating parabolic reflector 1-2-1, and the rotating parabolic reflector 1-2- The focal point of 1 is located on the light incident slit of the large flat mirror 1-1-1,

When sunlight is incident perpendicular to the plane transparent cover plate 4-1, the incident light can pass through the large plane reflector 1-1-1 and the reflection focusing of the rotating parabolic reflector 1-2-1 through the large plane reflector 1- The light incident slit of 1-1 is irradiated on the disc-shaped solar cell panel 10-1, and the light energy irradiated on the disc-shaped solar cell panel 10-1 is converted into electrical energy by the disc-shaped solar cell panel 10-1, The intensity of sunlight irradiated on the disc-shaped solar panel 10-1 has been greatly improved by the reflective focusing effect of the large plane reflector 1-1-1 and the rotating parabolic reflector 1-2-1, thereby greatly improving the light intensity. The photoelectric conversion rate of the energy receiver 1-3-1, the structures, dimensions and light energy receiving processes of the above-mentioned solar concentrating receiving mechanisms are the same as those of the first solar concentrating receiving mechanism.

Claims (1)

1. A secondary reflection plane daylighting solar power generation device is composed of a rectangular box, a plane transparent cover plate, a large plane reflector and a solar concentrating receiving mechanism, and each solar concentrating receiving mechanism is composed of a rotating parabolic reflector and a It is composed of light energy receivers, and the light energy receivers of each solar concentrating receiving mechanism are composed of a disc-shaped solar panel, which is characterized in that: the light energy receivers of each group of solar concentrating receiving mechanisms are installed on the large On the back side of the reflective surface of the plane reflector, each disc-shaped solar cell panel of the photoreceiver of each group of solar energy concentrating receiving mechanism is facing the light incident slit of the large plane reflector of the group and each disc-shaped solar cell The plate is facing the reflective surface of the rotating parabolic reflector, and the center of circle of the disc-shaped solar cell panels of the light energy receivers of each solar concentrating receiving mechanism is located on the axis of symmetry of the rotating parabolic reflector of the solar concentrating receiving mechanism. The focus of the rotating parabolic reflector of the group of solar concentrating receiving mechanisms is located on the light incident slit of the large plane reflector of the group, When sunlight is incident perpendicular to the plane transparent cover, the incident light can pass through the light incident slit of the large plane reflector after being reflected and focused by the large plane reflectors and rotating parabolic reflectors of each group of solar concentrating receiving mechanisms. On the disk-shaped solar panels of each light energy receiver, the light energy irradiated on the disk-shaped solar panels of each light energy receiver is converted into electrical energy through the disk-shaped solar panels, and passed through the large plane reflectors The reflective focusing effect of the rotating parabolic reflector and the rotating parabolic mirror greatly improves the intensity of sunlight irradiated on the disc-shaped solar cell panels of each light energy receiver, thus greatly improving the photoelectric conversion rate of each light energy receiver.

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