KR102155322B1 - Generating and accumulating structure for solar energy having beam-spliting lens - Google Patents

Abstract

The present invention relates to a structure for both generation and storage of solar power using a light splitting lens, the structure which includes: a heat collecting panel unit provided with a preset curvature to collect multiple paths of sunlight to a focus; a double heat collecting tube body provided between the heat collecting panel unit and the focus; and a power generation and storage unit including a solar cell that is provided relatively further outside the focus from the heat collecting panel unit and generates solar power and the light splitting lens that reflects some of the sunlight collected at the focus, collects the sunlight on the double heat collecting tube body, and refracts and transmits some of the sunlight to supply to the solar cell. The structure for both generation and storage of solar power using the light splitting lens according to the present invention can supply a specific band of sunlight to the solar cell using the light splitting lens, external electricity supply of the prior art is not required, so that the cost of additional facilities can be reduced. In addition, the structure can be installed in remote areas or rough terrain as there are no restrictions on location, and can utilize not only thermal energy but also light energy, thereby minimizing energy loss and enabling efficient use of resources.

Description

Storage structure for solar power generation using optical splitting lens {GENERATING AND ACCUMULATING STRUCTURE FOR SOLAR ENERGY HAVING BEAM-SPLITING LENS}

The present invention relates to a storage structure for both solar power generation using a light splitting lens, and more particularly, to a light splitting lens capable of collecting sunlight through a heat collecting plate and utilizing it as thermal energy and capable of self-power generation through sunlight. It relates to a storage structure for both solar power generation and use.

In recent years, solar energy and solar heat have been in the spotlight as clean eco-friendly energy sources along with wind power and hydropower, and are being recognized as the only alternative means of fossil raw materials such as petroleum.

Accordingly, various equipment and facilities that utilize solar energy are emerging, such as solar panels, solar cell modules, etc. that collect light energy and convert it directly into electric energy, or solar heat storage (collective heat) that collects heat energy and uses it as a heat source for hot water and heating. ) Is largely divided into devices and developed.

Among them, the solar storage device includes a heat collecting plate of a certain standard and a circulation pipe through which a fluid (heat medium oil, etc.) flows inside adjacent to the heat collecting plate, so that the solar radiation heat is irradiated to the circulation pipe, and the fluid is heated to obtain water or heat medium. It can be used through heat exchange by oil. In particular, in the case of a location tracking type heat collecting plate, it is designed to track according to a change in the circumferential path and altitude of the sun, and it is necessary to provide power for rotating these heat collecting plates.

However, the conventional solar storage device including the tracking facility requires a separate power line for supplying electricity from the outside to the device, and requires additional facilities, causing a problem of location when installing the device and increasing the cost of the facility. .

In addition, energy loss occurs due to the inability to utilize light energy other than the thermal energy of sunlight, and there is a limitation in the use of resources, which is inefficient.

The present invention has been proposed to solve the above problems, and since a specific band of sunlight can be supplied to the solar cell by using a light splitting lens, external electricity supply is unnecessary compared to the prior art, thereby reducing the cost of auxiliary equipment. It can be installed in remote areas or rough terrain because there is no place limitation, and it provides a storage structure for both solar power generation using a light splitting lens that minimizes energy loss and enables efficient use of resources by using light energy as well as heat energy.

A solar power generation combined storage structure using a light splitting lens according to the present invention for achieving the above object includes: a heat collecting panel unit provided with a preset curvature so as to collect multiple paths of sunlight into a focus; A double heat collecting tube body provided between the heat collecting panel part and the focal point; And a solar cell that is provided relatively further outside the focal point from the heat-collecting panel unit, and reflects some of the sunlight collected at the focal point and collects it in the double heat collecting tube body, and partially refracts and It may include a power generation and storage unit including a light splitting lens transmitted to the solar cell.

The optical splitting lens may have a hemispherical shape, and curvatures of an inner surface and an outer surface of the optical splitting lens may be different from each other.

The curvature of the optical splitting lens may be provided relatively smaller than the curvature of the heat collecting panel.

A coating layer may be provided on the inner surface of the optical splitting lens.

The power generation and storage unit may include a heat sink disposed on an upper surface of the solar cell to prevent overheating of the solar cell; And a gap securing member that partially grips the optical splitting lens but maintains a separation distance from the solar cell.

The power generation and storage unit includes: a reflector disposed spaced apart from the heat dissipation plate by a predetermined distance; And a receiving casing including a horizontal partition wall and a vertical bracket accommodating the optical splitting lens and the solar cell.

In the optical splitting lens, a band of 300 to 700 nm of the sunlight is transmitted and refracted to be supplied to the solar cell, and a band of 700 nm or more of the sunlight may be reflected and collected into the double collecting tube body.

The heat collecting panel unit may include a round frame provided on a horizontal frame and rounded with the curvature; And first and second heat collecting plates disposed on both sides of the horizontal frame and coupled to the round frame.

The first and second heat collecting plates may be provided to be separated from each other.

The storage structure for both solar power generation using the optical splitting lens according to the present invention can supply a specific band of sunlight to the solar cell using the optical splitting lens, so that the supply of electricity from the outside is unnecessary compared to the prior art, thereby reducing the cost of additional equipment. It can be installed in remote areas or rough terrain due to the fact that it is reduced and there is no place limitation, and it is possible to use light energy as well as heat energy, thereby minimizing energy loss and enabling efficient use of resources.

1 and 2 are perspective and bottom perspective views of a storage structure for both solar power generation using a light splitting lens according to an embodiment of the present invention.
3 is a partial enlarged view of FIG. 2.
4 is a diagram schematically showing the principle of light splitting through a storage structure for both solar power generation using a light splitting lens according to an embodiment of the present invention.
5 is an exploded perspective view of a power generation and storage unit in a storage structure for solar power generation using a light splitting lens according to an embodiment of the present invention.
6 is a cross-sectional view of a power generation and storage unit in a storage structure for both solar power generation using a light splitting lens according to an embodiment of the present invention.
7 is a schematic perspective view of an optical splitting lens and a gap securing member in FIG. 5.

Hereinafter, an embodiment of a storage structure for both solar power generation using a light splitting lens according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a perspective view and a bottom perspective view of a storage structure for both solar power generation using a light splitting lens according to an embodiment of the present invention, FIG. 3 is a partially enlarged view in FIG. 2, and FIG. 4 is an embodiment of the present invention It is a view schematically showing the principle of light splitting through a storage structure for both solar power generation using a light splitting lens according to the present invention, and FIG. 5 is a view showing the power generation in the solar power generation combined storage structure using the light splitting lens according to an embodiment of the present invention. An exploded perspective view of a storage unit, and FIG. 6 is a cross-sectional view of a power generation and storage unit in a storage structure for solar power generation using an optical splitting lens according to an embodiment of the present invention, and FIG. 7 is a light splitting lens and a gap securing member in FIG. Is a schematic perspective view of.

The storage structure for both solar power generation using a light splitting lens according to an embodiment of the present invention mainly refers to FIGS. 1 to 7, and a heat collecting panel unit 420 provided with a predetermined curvature so as to focus multiple paths of sunlight. ); A double heat collecting tube body 100 provided between the heat collecting panel part 420 and the focal point; And a solar cell 720 that is provided relatively further outside the focal point from the heat-collecting panel part 420 and generates solar power, and the double heat collecting tube body 100 by reflecting some of the sunlight collected at the focal point. ), a power generation and storage unit 700 including an optical splitting lens 710 that is partially refracted and transmitted to the solar cell 720 to be supplied to the solar cell 720.

The heat collecting panel part 420 may be provided on a support (not shown) so as to be rotatable through a rotation shaft 410a on the horizontal frame 410, and a heat collecting panel part 420 may be provided on the horizontal frame 410. have.

The heat collecting panel part 420 is mainly provided in the horizontal frame 410, as shown in Figs. 1 to 2, the round frame 423 provided to be rounded by the curvature; And first and second heat collecting plates 421 and 422 disposed on both sides with respect to the center of the horizontal frame 410 and coupled to the round frame 423.

The round frame 423 and the first and second heat collecting plates 421 and 422 may be manufactured with a preset curvature. Here, the preset curvature is the physical properties of the first and second heat collecting plates 421 and 422 (e.g., reflectance, heat collecting capacity, etc.), or the specifications of the first and second heat collecting plates 421 and 422 (e.g., size, thickness, etc.) Etc.).

In addition, the surface treatment of the plate surfaces of the first and second heat collecting plates 421 and 422 may be performed so that the reflectance of solar heat and light energy is maximized, and the surface treatment level is a level at which the absorption rate of sunlight is minimized (for example, It can be provided with mirror-level surface roughness, etc.).

The first and second heat collecting plates 421 and 422 may be provided to be separated from each other. The heat collecting panel unit 420 of this configuration may be rotated relative to the support while being tracked according to the degree of the sun.

As shown in FIGS. 1 to 2, the outer chassis 440 may be connected to the horizontal frame 410 and may be provided to extend in a length opposite to the direction in which the heat collecting plate is disposed. The outer chassis 440 may have a substantially triangular plate surface, and a mass 441 may be provided at a vertex of a triangle, that is, a lower end of the outer chassis 440. This mass body 441 reduces the rotational mass when the heat collecting panel unit 420 rotates relative to the support, and the rotation motor (not shown) rotates the first and second heat collecting plates 421 and 422 using less power. To be able to.

An inner chassis portion 430 may be provided in the central region of the horizontal frame 410. The inner chassis part 430 may be provided to extend in length toward the inside of the curvature of the heat collecting panel part 420 (toward the center of curvature of the first and second heat collecting plates 421 and 422 ).

A double heat collecting tube body 100 may be connected to the inner chassis part 430, and in particular, the double heat collecting tube body 100 may be provided between the heat collecting panel part 420 and the focal point. This double heat collecting tube body 100 mainly refers to FIG. 4, an outer casing 110 disposed at a point where multiple paths of solar heat gather in one place; The outer casing 110 may include an inner tube body 200 that is spaced apart by a predetermined gap but temporarily retains and flows heat medium oil therein.

The outer casing 110 may be made of a pipe material having a circular cross-sectional shape, and may be provided in a double tube structure in which the inner tube body 200 is provided. Heat medium oil flows into the interior of the double pipe structure, and heat medium oil or a vacuum state of different physical properties may be provided between the inner tube body 200 and the outer casing 100. Alternatively, it may be provided in a single tube structure and a structure in which a single heat medium oil collects.

On the other hand, a coating layer (not shown) is provided on the outer surface of the outer casing 110, and the coating layer may be deposited with porous silicon carbide (SiC) or other inorganic material to ensure high emissivity, chemical resistance and heat resistance. .

The sunlight supplied to the double collecting tube body 100 is in a wavelength band of 700 nm or more, which is reflected through a coating layer (not shown) of the optical splitting lens 710 and supplied to the double collecting tube body 100. .

Through the double heat collecting tube body 100, radiant heat from the sun is irradiated and the heat medium oil is heated to use heat energy through heat exchange by water or heat medium oil.

On the other hand, in most conventional solar storage devices, it is inevitable to supply electricity from the outside to the device, which leads to restrictions on the place where the device is installed or increases the cost of additional facilities such as a separate external power facility. .

Accordingly, a power generation and storage unit 700 may be provided in the storage structure for both solar power generation using the light splitting lens 710 in this embodiment. The power generation and storage unit 700 may be provided at an outer side relative to the focus from the heat collecting panel unit 420.

The power generation and storage unit 700 mainly refers to FIGS. 1 to 6, reflecting some of the sunlight collected in the focus and collecting it on the double collecting tube body 100, and refracting and transmitting some of the solar light. A light splitting lens 710 supplied to the cell 720, a solar cell 720 for generating photovoltaic power, and a heat sink disposed on the top surface of the solar cell 720 to prevent overheating of the solar cell 720 ( 730); And a gap securing member 711 which partially grips the optical splitting lens 710 but maintains a separation distance from the solar cell 720. A reflector 740 spaced apart from the heat sink 730 by a predetermined distance; And a receiving casing 750 including a horizontal partition wall 751 and a vertical bracket 752 accommodating the optical splitting lens 710 and the solar cell 720.

The optical splitting lens 710 may be provided to be exposed to the bottom of the power generation and storage unit 700. The optical splitting lens 710 is provided in a hemispherical shape, as shown in FIGS. 3 to 4, and curvatures of the inner surface 710a and the outer surface 710b of the optical splitting lens 710 may be provided differently from each other. . In this embodiment, the curvature of the outer surface 710b is provided relatively larger than the curvature of the inner surface 710a of the optical splitting lens 710, and the degree of curvature may be determined in consideration of the degree of refraction and reflection of sunlight.

The curvatures 710a and 710b of the optical splitting lens 710 may be provided relatively smaller than the curvatures of the first and second heat collecting plates 421 and 422 of the heat collecting panel part 420.

A coating layer (not shown) may be provided on the inner surface of the optical splitting lens 710. For example, the coating layer may be deposited with an inorganic material. The light splitting lens 710 transmits and refracts a band of 300 to 700 nm of the solar light to be supplied to the solar cell 720, and reflects a band of 700 nm or more of the solar light to reflect the double collecting tube body. Make it possible to collect as (100).

The plurality of optical splitting lenses 710 may be held mainly by the gap securing member 711 as shown in FIGS. 3 and 7. The gap securing member 711 serves to partially hold both ends of the optical splitting lens 710 but maintain a separation distance from the solar cell 720.

A step portion 712 may be provided on the upper surface of the gap securing member 711, and the step portion 712 may be provided to partially expose the outer surface of the optical splitting lens 710, and the gap securing member 711 Therefore, it is possible to minimize interference of sunlight supplied to the solar cell 720 when sunlight is transmitted.

A solar cell 720 may be provided directly above the optical splitting lens 710 with a predetermined distance apart with reference mainly to FIGS. 4 to 6. The solar cell 720 is provided in a rectangular plate type, and the solar cell 720 is refracted as sunlight in the 300 ~ 700 nm band passes through the optical splitting lens 710 and is supplied to the solar cell 720 Can be.

In this way, a specific band (a wavelength band of 300 ~ 700 nm) among sunlight can be transmitted through the solar cell 720 using the light splitting lens 710, so that solar power can be generated by itself. Through this, the device can be self-powered, so it is not necessary to supply electricity from the outside, the cost of auxiliary equipment can be reduced, and it can be installed freely in remote areas or rough terrain.

In addition, since light energy as well as thermal energy can be used together, energy loss can be minimized and efficient use of resources can be possible.

A heat sink 730 may be attached to the immediate upper surface of the solar cell 720, referring mainly to FIG. 6. The heat sink 730 can suppress the increase in temperature by preventing overheating of the solar cell 720 when the temperature rises as sunlight is supplied to the solar cell 720, thereby maintaining the solar power generation efficiency of the solar cell 720 or You can minimize the degradation.

This heat sink 730 is mainly supported by a plurality of support members 741 on the upper surface as shown in FIG. 5, but is provided in a structure coupled to the horizontal partition wall 751 and the vertical bracket 752, and the heat sink 730 The solar cell 720 may be attached to and suspended in a structure.

A reflecting plate 740 is provided on the upper surface of the receiving casing 750, and the reflecting plate 740 may be disposed to be spaced apart from the heat sink 730 by a predetermined distance. In addition, a separation bracket 742 may be provided for the separation arrangement.

Through the power generation and storage unit 700 of this structure, a specific band (300 ~ 700 nm) of sunlight can be transmitted and refracted using the optical splitting lens 710 to be supplied to the solar cell 720. At the same time, it is possible to supply solar light in a specific band (700 nm or more) from the same sunlight to the double-collecting tube body 100, so that not only heat energy but also light energy can be used together, and energy loss is minimized and efficient resource use is possible. I can.

Accordingly, as compared to the prior art, an external power line to be supplied to the device or a separate supply of electricity from the outside is not required, thereby reducing the cost of auxiliary equipment, and since there is no restriction on a location, it may be installed in a remote or rough terrain.

Hereinafter, a collection process and a power generation process of the storage structure for solar power generation using the optical splitting lens according to the present embodiment will be described in detail with reference to FIGS. 1 to 7.

First, when sunlight is irradiated, it is reflected by the first and second heat collecting plates 421 and 422 and concentrated to a virtual focus.

Solar light may be irradiated to the power generation and storage unit 700 disposed adjacent to the focal point. As shown in Fig. 6, the power generation and storage unit 700 is provided in a structure in which an optical splitting lens 710, a solar cell 720, and a heat sink 730 are stacked in order from the bottom.

When sunlight is transmitted through the light splitting lens 710, the coating layer of the light splitting lens 710 mainly reflects a wavelength of 700 nm or more in the wavelength band of the light as shown in FIG. 4. At this time, due to the curvature of the inner surface 710a of the light splitting lens 710, the reflected sunlight may be concentrated to the double heat collecting tube body 100.

Then, solar heat is concentrated to the outer casing 110, and at this time, the coating layer of the outer casing 110 more efficiently collects solar heat, and thus the heat medium oil in the inner tube body 200 may be heated. Accordingly, the heat medium oil reaches another heat exchanger (not shown) or the like through a pipe (not shown) connected to the double heat collecting tube body 100, where heat exchange such as boiling water occurs.

Through this operation process, heat absorption efficiency can be improved compared to the prior art through the coating layer on the outer casing 110, the heat storage time of the heat medium oil can be increased, the waste heat recovery rate can be improved, and the overall heat collection efficiency can be improved.

Meanwhile, the power generation and storage unit 700 may collect solar light and generate solar power at the same time.

That is, a specific wavelength band of 300 to 700 nm of sunlight may not be reflected by the coating layer formed on the inner surface of the light split lens 710, but may be refracted by transmitting the light split lens 710 in the thickness direction. The angle of refraction, etc. may be influenced by the difference in curvature between the inner surface 710a and the outer surface 710b of the optical splitting lens 710, or the specifications of the absolute optical splitting lens 710 (e.g., thickness, curvature value of the outer surface, etc.). have.

The sunlight transmitted and refracted through the light splitting lens 710 is irradiated to the solar cell 720 disposed immediately above it, and the plate surface of the solar cell 720 is adjusted by adjusting the specifications of the light splitting lens 710 described above. You can make the entire area irradiated.

Through this, the solar cell 720 may be capable of solar power generation. The generated electricity may be utilized as the power of the device (eg, rotation of the heat collecting panel unit for tracking, activation of various lighting facilities, sensors, etc.) or may be stored in a separate electrical storage.

During solar power generation, due to the heat sink 730 attached to the surface of the solar cell 720, overheating of the solar cell 720 is prevented, and power generation efficiency of the solar cell 720 can be secured. In addition, heat dissipation efficiency of the heat dissipation plate 730 may be maintained due to the reflector 740 spaced apart from the heat dissipation plate 730.

Through this process, since a specific band of sunlight can be supplied to the solar cell 720 using the optical splitting lens 710, the supply of electricity from the outside is unnecessary compared to the prior art. Because it is not available, it can be installed in remote or rough terrain, and since it can use light energy as well as heat energy, energy loss can be minimized and efficient use of resources can be possible.

In the above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to specific embodiments, and should be interpreted by the appended claims. In addition, those who have acquired ordinary knowledge in this technical field should understand that many modifications and variations can be made without departing from the scope of the present invention.

100: double collecting tube body
110: outer casing 200: inner tube body
410: horizontal frame
420: heat collecting panel portion 421, 422: first and second heat collecting plates
423: round frame 430: inner chassis
440: outer chassis part 441: mass
700: power generation and storage unit 710: optical split lens
710a: inner surface 710b: outer surface
711: gap securing member 712: step portion
720: solar cell 730: heat sink
740: reflector 750: receiving casing
751: horizontal bulkhead 752: vertical bracket

Claims (9)

A heat collecting panel unit provided with a preset curvature so as to collect multiple paths of sunlight into a focus;
A double heat collecting tube body disposed between the heat collecting panel part and the focal point; And
A solar cell that is provided relatively further outside the focal point from the heat-collecting panel unit and reflects some of the sunlight collected at the focal point to collect it on the double heat collecting tube body, and refracts and transmits a part of it And a power generation and storage unit including an optical splitting lens supplied to the solar cell,
The optical splitting lens is provided in a hemispherical shape,
Curvatures of the inner and outer surfaces of the optical splitting lens are provided differently from each other,
A coating layer is provided on the inner surface of the optical splitting lens,
The power generation and storage unit,
A heat sink disposed on an upper surface of the solar cell to prevent overheating of the solar cell; And
Further comprising a gap securing member for partially holding the optical splitting lens but maintaining a separation distance from the solar cell,
The power generation and storage unit,
A reflector disposed spaced apart from the heat sink at a predetermined distance; And
Further comprising a receiving casing including a horizontal partition wall and a vertical bracket accommodating the optical split lens and the solar cell,
The optical splitting lens is supplied to the solar cell by transmitting and refracting a band of 300 to 700 nm of the sunlight,
The solar power generation combined storage structure using a light splitting lens, characterized in that the band of 700 nm or more of the solar light is reflected and collected by the double collecting tube body. delete The method of claim 1,
The photovoltaic power generation combined storage structure using a light splitting lens, characterized in that the curvature of the light splitting lens is provided relatively smaller than that of the heat collecting panel part. delete delete delete delete The method of claim 1,
The heat collecting panel part,
A round frame provided on a horizontal frame and rounded with the curvature; And
A storage structure for combined solar power generation using a light splitting lens, comprising: first and second heat collecting plates disposed on both sides of the horizontal frame and coupled to the round frame. The method of claim 8,
The solar power generation combined storage structure using a light splitting lens, characterized in that the first and second heat collecting plates are provided to be separated from each other.

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