KR101568927B1

KR101568927B1 - Solar cell structures using optical stubborn

Info

Publication number: KR101568927B1
Application number: KR1020140020458A
Authority: KR
Inventors: 박세영
Original assignee: 박세영
Priority date: 2014-02-21
Filing date: 2014-02-21
Publication date: 2015-11-12
Also published as: KR20150099005A

Abstract

The present invention relates to a highly concentrated cell structure using solar heat. When a solar cell is used to produce electric power, it is more efficient (CPV) than a conventional pv power generation system. In order to prevent the efficiency from dropping, it is designed to have a heat radiating device capable of naturally radiating heat and at the same time a streamlined structure that can withstand wind pressure, and at the same time, In consideration of the assembly cost, it is possible to assemble them freely according to the generating capacity in a grid form of 2, 4, 9, or 16 units, and a support frame and an installation frame And the like.

Description

[0001] Solar cell structures using optical stubborn [

The present invention relates to a highly concentrated cell structure using solar heat.

One of the commonly used photovoltaic devices that generate electricity using solar energy is a solar cell (pv), which is a Si (silicon) series, so that only visible light of wavelength is converted into electrical energy The efficiency is low.

Because the high density solar cell (cpv) material is group V3 system, it is 2-3 times more efficient than conventional pv because it focuses on visible light and infrared rays. However, in order to converge the light, the thickness of the Fresnel lens must be increased to match the focal distance. The technology is already verified using technology of spacecraft solar power equipment and its performance verification, and in some cases, it is going to convert to cpv rather than pv.

Also, structures that can withstand wind pressure are heavy and heavy because they are assembled rigidly and rigidly. Therefore, a large amount of money is consumed.

In addition, the solar tracking system is installed to increase the efficiency, resulting in higher cost and weight.

Conventional solar cell Pv Because infrared rays can not absorb infrared rays, a shape that is ineffective at high ambient temperature such as desert occurs, but a high-efficiency solar cell cpv collects light at a small area, which causes high temperature.

In addition, there is a problem that efficiency is lowered by reflecting incident solar energy once, or using a secondary lens. The incident solar heat needs to directly convert the energy to the sticking optical cell and the infrared to the scattering wave solar energy into electrical energy.

In addition, in order to maintain the solar incidence angle, a solar tracking system must be used in order to generate solar collectors.

As a result, when the condensing sunlight is condensed, a large amount of heat is generated. In order to concentrate the condensing heat with the heat dissipating device capable of emitting the heat, the focal length and the lens are determined. Which is vulnerable to strong winds, so that the supporting frame has to be strong and its weight becomes large. In order to overcome this problem, it is necessary to assemble into a lattice shape, to make a unit stream itself to produce a strong wind flow, to make it lightweight, and to use high-efficiency solar energy at low cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a solar cell module capable of reducing the weight of a cell by a combination structure to reduce costs and utilize efficient solar energy with a streamlined structure capable of withstanding wind pressure.

According to an aspect of the present invention, there is provided a power generation system using highly concentrated solar energy, comprising: a fresnel lens; a reflector for allowing infrared rays having thermal energy to reach the condenser plate; (Matrix type) to be assembled in accordance with the size and the capacity.

In the above description, it is assumed that a single solar cell having a structure capable of providing a streamline wind flow withstanding wind pressure (45 m / s) and a size and a capacity can be assembled in a single cell .

The central portion of the highly concentrated solar cell according to the present invention is a device for preventing the efficiency from being lowered when converting into the solar solar heat energy due to the temperature rise of the condensing solar heat. It is a device using natural cooling method and cooling water, Type structure.

The present invention also relates to a device for converting incident solar energy into direct irradiation electrical energy to prevent the efficiency from being lowered by using a secondary lens to reflect incident solar energy once or convert it into electricity or hot water energy and a

The present invention is based on a cpv power generation system having efficiency of 2-3 times higher (30-40%) than conventional pv (10-20%). In view of cost reduction, which is the biggest problem, 20%) We can actively cope with global warming by installing and operating at low cost.

Therefore, the present invention has the effect of being able to withstand the wind pressure and utilize the high-efficiency solar energy at low cost.

1 is a front view of a basic cell assembly of a power generation system using a high-concentrating solar energy according to an embodiment of the present invention;
Fig. 2 is a cross-
FIG. 3 is a unit assembly view of a grid (matrix) presented as a basic cell according to an embodiment of the present invention, showing a front view, a left view, and a bottom view.
FIG. 4 is a cross-
FIG. 5 is a detail view illustrating a streamlined structure according to an embodiment of the present invention.
FIG. 6 is an assembled view of an entire system assembled in a lattice form using a unit according to an embodiment of the present invention. FIG. 6 is a front view and a side view

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In order to construct one cell, a fresnel lens 3 and a reflecting plate 8 for supporting the fresnel lens 3; A concentrated collimating cell (13) for converting solar energy provided below the center of the reflector into electrical energy; A single cell including an aluminum prefabricated frame 14 which is assembled and supported outside the highly concentrated cell 13 is formed and the structure is basically assembled in a lattice form to form one unit . This unit is a basic unit for producing solar energy as electric energy (refer to drawing 3 unit assembly diagram).

As shown in FIG. 1, when the primary solar energy is vertically incident, the high efficiency focused high-energy solar energy utilizing apparatus having such a structure is constructed of a tempered glass for protecting the lens from a short wavelength to a long wavelength Passes through the inner space 2 and converges to one point of the focused light cells 13 via the Fresnel lens 4 and the Fresnel lens 3.

As shown in FIG. 1, the solar energy incident on the Fresnel lens 3, as in the prior art No. 10-2013-0090580, is not incident on the sunbeam, reflected again, or used in the middle of the lens. Passes directly to the high density optical cell 13, and is converted into electric energy.

As shown in FIG. 1, the reflection plate 8 for condensing ultraviolet energy into sunlight energy of the Fresnel lens 3 is assembled to the outside through the left side streamline side frame 5. In this case, since the reflector 8 has no fixed holding force when it is continuously assembled to the right and back and forth in a lattice form, the fresnel lens 3 and the protective tempered glass 4 are placed on the left and right on the intermediate supporting rod 10 The upper tightening bracket 7 is placed on the upper tightening bolt 1 and fastened with the fastening bolt 1, so that it can be continuously connected each time the super concentrating cell 13 is added.

The tightly packed cells 13 fasten the cell separating bridges 11 provided on the outer sides of the lower ends of both sides of the reflector 8 with fastening bolts 6. The fastening bolts 6 are fastened to the cell separating bridges 11, But it can also be used to fix the side streamlined bracket 5 and the aluminum prefabricated frame 14 as well.

The cell isolation bracket 11 catches the reflection angle of the reflection plate 8 and condenses the incident angle of solar light on the highly concentrated cell 13 of one point precisely.

In the assembly of the present invention, the reflector (8) and the cell isolation bracket (11) are assembled so as to fix the solid-state light cell (13) at the bottom and maintain the correct angle of the reflection plate when the solar light is incident. The fresnel lens 3 and the protective tempered glass 4 are placed on the upper tightening bracket 7 of the middle support rod 10 and then the intermediate support rod 9 is tightened with the tightening bolt 1. [ The calculated incident angle of focus can be accurately fixed, and the incident angle of solar light is accurately received by the highly concentrated cell 13, so that the efficiency can be maximized.

Finally, when the right side streamlined frame 20 and the left streamlined side frame 5 are assembled in the same direction and fastened to the same reflector 8 before and after, a unit capable of generating one complete solar heat is completed.

The unit is less horizontal and more resistant to strong winds when it winds up, which can save weight and cost.

In addition, the units of the present invention can be formed into a shape of inner wind pressure by assembling the four units at a spacing with each other and horizontally symmetrically connecting the struts 31.

The bolts 6 can be fastened to the side frame 5 and the aluminum frame 14 and the intermediate support bolts 9 connecting the support bars 10 are assembled to form the aluminum frame 14 The aluminum prefabricated frame A (forming the recessed portion A) 41 and the aluminum prefabricated frame B (forming the fitting protrusion) 45 can be connected to each other so as to be connected to each other, And a cooling hole (12) for heat dissipation, the frame being formed by extruding aluminum (AL).

The entire assembly mode according to the present embodiment can be achieved by installing the solar sensor 25 on the upper portion of the main support 31 and arranging the four units in a balanced manner in the left and right directions in a single stage or two stages And each of the four units is vertically mounted on a solar sensor 25. The sun tracking R gear box BOX apparatus 28 and 30 are installed in the main tower 31 and the horizontal sun tracking gear box apparatus 33 ).

The present invention can be assembled in various lattice forms and can be installed according to the strength of a typhoon or a main support. However, in the present invention, the size of the basic knitted fabric is 16 x 4 cells or 5 x 5 cells, Less than 1.3M² in size is suitable.

In addition, the present invention allows the fitting projection of the aluminum prefabricated frame (B) 45 to be fitted to the concave portion of the aluminum prefabricated frame (A) 41 so as to reduce the production cost and weight.

The present invention can be applied to a structure having a structure capable of passing a direction to a strong wind, that is, a streamlined type in which resistance can be minimized, a frame having safety against wind pressure in any direction of left, right, front and rear, When assembled, it is possible to assemble without assembling a separate reinforcing bar when assembling it (trapezoid) because the length of the upper side and the lower side of the assembly are different. When the light is condensed on the highly concentrated cell device, high temperature (more than 300C °) Since it is necessary to cool it up to 110C °, it is necessary to cool it. Therefore, it is natural to use aluminum material to lower the temperature, and the solar heat input from the Fresnel lens is changed from low to high wavelength depending on the lens shape It is difficult to irradiate 10mm x 10mm area with small angle of incidence. It uses secondary lens in the middle, but it is difficult because of cost and assembly complexity. Since the present invention can be used with a special coating to the reflection plate is also to be incident infrared wavelength and diffuse reflection on the reflection plate to overcome the autumn. Further, the present invention can provide ease of assembly when assembling the cell and the reflector.

3: Fresnel lens 4: Tempered glass
8: reflector 9: intermediate support bolt
10: intermediate support rod 11: cell isolation bracket
12: Cooling hole 13: High condensing cell
14: Prefabricated frame 15:

Claims

Frenelle (3) and reflector (8) supporting it; A concentrated collimating cell (13) for converting solar energy provided below the center of the reflector into electrical energy; And an aluminum prefabricated frame 14 which is assembled and supported outside the highly concentrated light cell 13 to form a single cell. In this structure, a single unit is formed by assembling the cell in a lattice form And the reflector 8 is assembled to the outside via the left side streamlined side frame 5 and the Fresnel lens 3 and the protective tempered glass 4 are placed on the left and right sides of the intermediate support rod 10 And the upper fastening bracket (7) is placed on the upper fastening bolt (1) and fastened with a fastening bolt (1).

delete

The aluminum frame (14) according to claim 1, characterized in that it is assembled with an intermediate support bolt (9) connecting the support rod (10) with the bolt (6) capable of fastening the streamlined side frame (5) and the aluminum prefabricated frame And the aluminum prefabricated frame B (45) (formed with a fitting projection) are connected to each other by fitting them together. .