CN201478330U - Solar energy collection system composed of lens group and Fresnel lens - Google Patents

Abstract

The utility model discloses a solar energy collection system composed of a lens group and a Fresnel lens, which is mainly composed of a Fresnel lens, a lens group and a solar photoelectric conversion device; the upper surface of the Fresnel lens is positive For the sun, the lens group is installed under the Fresnel lens, and the solar photoelectric conversion device is installed under the lens group to receive parallel light or nearly parallel light from the lens group. The utility model adopts a transmissive light receiving mode, utilizes the converging effect of the Fresnel lens to collect sunlight, and uses the lens group to complete the shaping of the light beam converged by the Fresnel lens, so that most of the light becomes parallel light or approximately parallel light The light exits and hits the solar cell vertically or nearly vertically. Because the utility model can convert the received sunlight into high-intensity parallel light or approximately parallel light beams, thereby reducing the use area of the photovoltaic cell and increasing the photoelectric conversion efficiency.

Description

Solar energy collection system composed of lens group and Fresnel lens

technical field

The utility model relates to a solar energy utilization system, in particular to a solar light energy collection system composed of a lens group and a Fresnel lens.

Background technique

The current form of solar power generation is to arrange solar panels to form a solar cell array. There are many kinds of solar cells, but no matter what kind of solar cells are very expensive, so many people are exploring the solution of reducing the area of the solar panels as much as possible while maintaining the same power generation. For this reason, people install solar energy collecting system additionally in front of solar panel. Most of the conventional solar collection systems are reflective solar collection systems (as shown in Figure 1), and the sunlight is projected onto the solar panel 3' after being reflected by the reflectors 1', 2'. The energy utilization rate of this form of collection system is not high, and the price of the collection device itself is relatively high.

Utility model content

The purpose of the utility model is to provide a solar light energy collection system composed of a lens group and a Fresnel lens, which can reduce the use area of the photovoltaic cell and increase the photoelectric conversion efficiency.

For achieving the above object, the technical solution of the utility model is:

The utility model is a solar energy collection system composed of a lens group and a Fresnel lens, which is mainly composed of a Fresnel lens, a lens group and a solar photoelectric conversion device; the upper surface of the Fresnel lens is facing For the sun, the lens group is installed under the Fresnel lens, and the solar photoelectric conversion device is installed under the lens group to receive parallel light or approximately parallel light from the lens group.

The lens group is composed of one or more lenses, and the lenses are ordinary spherical lenses, or aspherical lenses, or cemented lenses.

The solar photoelectric conversion device is a solar panel.

After adopting the above scheme, the utility model adopts a transmissive light receiving mode, utilizes the converging effect of the Fresnel lens to collect sunlight, and uses the lens group to complete the shaping of the light beam converged by the Fresnel lens, so that most of the light becomes Parallel light or approximately parallel light is emitted, and is vertically or approximately vertically irradiated onto the solar cell. Since the utility model can convert the received sunlight into high-intensity parallel light or approximately parallel light beams, the use area of the photovoltaic cells is reduced and the photoelectric conversion efficiency is increased.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Description of drawings

Figure 1 is a conventional reflective solar collection system;

Fig. 2 is the structural representation of the first embodiment of the utility model;

Fig. 3 is the structural representation of the second embodiment of the utility model;

Fig. 4 is the structural representation of the utility model 3rd embodiment;

Fig. 5 is the structural representation of the fourth embodiment of the utility model;

Fig. 6 is the structural representation of the fifth embodiment of the utility model;

Fig. 7 is a schematic structural diagram of the sixth embodiment of the present invention.

Detailed ways

As shown in FIG. 2 , the utility model is a solar light energy collection system composed of a lens group and a Fresnel lens. It is mainly composed of a Fresnel lens 1 , a lens group 2 and a solar photoelectric conversion device 3 .

The upper surface of the Fresnel lens 1 is facing the sun, and the lens group 2 is installed directly below the Fresnel lens 1 for converting sunlight into parallel light or approximately parallel light; the solar photoelectric conversion device 3 is installed in the lens group 2 below, used to receive parallel light or nearly parallel light from lens group 2.

In this embodiment, the lens group 2 is a doublet lens group 2;

The solar photoelectric conversion device 3 is a solar panel 3 .

Lens group 2 of the present utility model can also be single lens 2A (as shown in Figure 3), can be aspherical single lens 2B (as shown in Figure 4), can be double single lens lens group 2C (as shown in Figure 5) , can be a three-piece combination lens group 2D (as shown in FIG. 6 ), and can also be a doublet single lens group 2E (as shown in FIG. 7 ).

The key point of this utility model is to use specific optical elements or element groups to complete the shaping of the light beam converged by the Fresnel lens, so that most of the light becomes parallel light or approximately parallel light, so that the light is irradiated vertically or approximately vertically. on the solar cell.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited with this, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the content of the specification should still belong to the utility model. Within the scope covered by the utility model patent.

Claims (3)

1. a solar energy collection system made up of lens group and Fresnel lens, is characterized in that: it mainly is made up of Fresnel lens, lens group and solar photoelectric conversion device; Described Fresnel lens upper surface Facing the sun, the lens group is installed under the Fresnel lens, and the solar photoelectric conversion device is installed under the lens group to receive parallel light or nearly parallel light from the lens group. 2. The sunlight energy collection system made up of lens group and Fresnel lens as claimed in claim 1, characterized in that: said lens group is made up of one or more lenses, wherein lens adopts common spherical mirror, or Aspheric lens, or cemented lens. 3. The solar energy collection system composed of a lens group and a Fresnel lens as claimed in claim 1, wherein the solar photoelectric conversion device is a solar panel.

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