KR102615213B1 - Power generator using solar heat - Google Patents

Abstract

The present invention relates to a solar power generation device. In particular, the present invention relates to a solar power generation device, and in particular, a heat collection module that collects heat to improve power generation efficiency by maximizing the temperature difference between the high and low temperature parts of the thermoelectric element through improvements in the heat collection structure and cooling structure; a thermoelectric element in which a high temperature portion is formed on one surface due to heat collected through the heat collection module; and a cooling module that cools the other surface of the thermoelectric element to form a low-temperature portion on the other surface of the thermoelectric element, wherein the heat collection module is formed to become narrower in width downward, and transmits sunlight. A condensing lens is provided at the top for condensing the condensing lens, and a collection plate is provided at the bottom where the focus of the condensing lens is located to absorb heat generated from the condensed sunlight. Meanwhile, the cooling module has a width that increases downward. It relates to a solar power generation device characterized in that it is formed to form a widening horn shape.

Description

Solar power generator {Power generator using solar heat}

The present invention relates to a solar power generation device, and in particular, to a solar power generation device that can improve power generation efficiency by maximizing the temperature difference between the high-temperature and low-temperature parts of a thermoelectric element.

In general, power generation devices using solar energy are divided into power generation devices using solar energy and power generation devices using solar energy. A power generation device using solar energy uses a solar cell that directly converts the sun's light energy into electrical energy using the photoelectric effect, and a Fresnel lens is also used as an optical element for heat collection.

While these power generation devices using solar energy are easy to install, there is a problem that the photoelectric conversion efficiency of solar cells is low and the heat generated during the power generation process is not utilized and is discarded.

A solar power generation device absorbs the sun's radiant energy through a collection lens and generates power using a thermoelectric element. However, since the collection plate and cooling plate have an inefficient structure, there is a problem in that the power generation efficiency is not optimized.

Republic of Korea Patent No. 10-0848809 ‘Three-dimensional module for combined cycle power generation using solar heat and solar energy and combined cycle power generation method using the same’

The purpose of the present invention is to solve the above problems and to provide a solar power generation device that can improve power generation efficiency by maximizing the temperature difference between the high-temperature and low-temperature parts of the thermoelectric element by improving the heat collection structure and cooling structure.

The present invention's solar power generation device for achieving the above object includes a heat collection module that collects heat; a thermoelectric element in which a high temperature portion is formed on one surface due to heat collected through the heat collection module; and a cooling module that cools the other surface of the thermoelectric element to form a low-temperature portion on the other surface of the thermoelectric element, wherein the heat collection module is formed to become narrower in width downward, and transmits sunlight. A condenser lens is provided at the top for condensing the convergence lens, and a collection plate is provided at the bottom where the focus of the condenser lens is located to absorb heat generated from the condensed sunlight. Meanwhile, the cooling module has a width that increases downward. It is formed to form a widening horn.

Additionally, the condenser lens may be a convex lens or a Fresnel lens.

In addition, the collection module may further include a reflector whose upper end is coupled along the edge of the collecting lens and the lower end is coupled along the edge of the collecting plate, and which reflects light that is not directed toward the collecting plate among the light passing through the collecting lens toward the collecting plate. You can.

Additionally, the cooling module may be formed to be longer than the length of the heat collection module.

Additionally, the cooling module may have a plurality of cooling protrusions formed in a portion adjacent to the exterior.

In addition, a plurality of the power generation structures are arranged adjacent to each other on the same plane, and the upper end of the condenser lens and the lower end of the cooling module are formed so that the cross section has the same size and shape, so that air can pass between adjacent power generation structures. A ventilation passage may be formed.

In addition, the plurality of heat collecting plates included in the plurality of power generation structures may be formed with installation holes through which a flow pipe through which fluid passes is installed in the front-back or left-right direction.

In addition, the plurality of power generation structures are installed to be spaced apart from the ground, and may further include a wind power generator installed between the cooling module included in the plurality of power generation structures and the ground.

According to the present invention, the power generation structure collects sunlight through a condensing lens and concentrates solar heat on the collector, and also uses a cooling module in the shape of a cone that widens downward toward the bottom to cover a large area while being minimally affected by the collector. Since heat is dissipated from the thermoelectric element, the temperature difference between the high temperature part and the low temperature part of the thermoelectric element can be maximized, thereby increasing power generation efficiency.

In addition, the cooling efficiency of the cooling module can be improved through the ventilation path formed by the arrangement of a plurality of power generation structures and the flow hole formed through the cooling module, and the gas or Liquids can be heated as they pass through them, providing heating or hot water.

Additionally, additional electricity can be obtained by providing a wind generator on the lower side of a plurality of power generation structures installed to be spaced apart from the ground.

Figure 1 is a perspective view showing the power generation structure applied to the solar power generation device of the present invention;
Figure 2 is a front view showing the power generation structure applied to the solar power generation device of the present invention;
Figure 3 is a front view showing examples of cooling modules applied to the power generation structure of the solar power generation device of the present invention;
Figure 4 is a perspective view showing a plurality of power generation structures applied to the solar power generation device of the present invention;
Figure 5 is an example diagram showing a structure capable of providing heating or hot water through a plurality of power generation structures applied to the solar power generation device of the present invention;
Figure 6 is a front view showing a structure in which a plurality of power generation structures applied to the solar power generation device of the present invention are installed spaced apart from the ground and a wind power generator is provided below;
Figure 7 is a perspective view showing a plurality of power generation structures applied to the solar power generation device of the present invention accommodated within a frame and installed spaced apart from the ground;
Figure 8 is a front view showing a structure in which a plurality of power generation structures applied to the solar power generation device of the present invention are installed spaced apart from the ground while accommodated in a frame and a wind power generator is provided below.

The present invention includes a heat collection module that collects heat together to improve power generation efficiency by maximizing the temperature difference between the high and low temperature parts of the thermoelectric element through improvements in the heat collection structure and cooling structure; a thermoelectric element in which a high temperature portion is formed on one surface due to heat collected through the heat collection module; and a cooling module that cools the other surface of the thermoelectric element to form a low-temperature portion on the other surface of the thermoelectric element, wherein the heat collection module is formed to become narrower in width downward, and transmits sunlight. A condenser lens is provided at the top for condensing the convergence lens, and a collection plate is provided at the bottom where the focus of the condenser lens is located to absorb heat generated from the condensed sunlight. Meanwhile, the cooling module has a width that increases downward. We propose a solar power generation device characterized in that it is formed to form a widening horn shape.

The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art without departing from the technical gist of the present invention.

Hereinafter, the solar power generation device of the present invention will be described in detail with reference to the attached FIGS. 1 to 8.

The solar power generation device of the present invention includes a power generation structure 100 including a heat collection module 110, a thermoelectric element 120, and a cooling module 130, as shown in FIGS. 1 and 2, and the power generation structure 100 ) produces electrical energy by the thermoelectric element 120.

The collection module 110 is intended to collect solar heat and includes a concentrator lens 111 and a collector plate 112. The condensing lens 111 can collect sunlight and is provided on the top of the collecting module 110. This condenser lens 111 may be a convex lens or a Fresnel lens, and is preferably made of a Fresnel lens, which can be manufactured to have a thinner thickness than a convex lens and to have a larger aperture.

The focus of the condenser lens 111 is located on the lower side away from the condenser lens 111. The collection plate 112 is arranged so that its center is placed at the point where the focus of the condenser lens 111 is located, and the collection module 110 It is provided at the bottom of. Accordingly, the heat collection plate 112 absorbs heat (i.e., solar heat) generated from sunlight collected through the light collection lens 111. In this way, the concentrated sunlight is used for collection by the collecting plate 112, and the collecting plate 112 is formed to be smaller than the size of the collecting lens 111. For example, if the width of the collecting lens 111 is 4 cm, the collecting plate 112 ) may have a width of 1 cm. That is, the heat collection module 110 is formed to become narrower in width downward, as shown in FIGS. 1 and 2 .

In addition, the collecting module 110 supports the condensing lens 111 at the top and further includes a heat shielding member that seals the space between the condensing lens 111 and the collecting plate 112 to prevent heat generated from the concentrated sunlight from escaping. It can be included. The heat shield member not only serves to prevent heat from escaping to the outside, but also serves to focus light on the heat collecting plate 112. For example, the heat shield member may be a reflector 113, and the heat collection module 110 may further include a reflector 113.

The upper end of the reflector 113 is coupled along the edge of the condenser lens 111 and the lower end is coupled along the edge of the condenser plate 112. Among the light passing through the condenser lens 111, light that is not directly directed to the condenser plate 112 It can be reflected toward the heat collecting plate 112. Accordingly, the reflector 113 prevents solar heat from escaping to the outside between the condenser lens 111 and the collector plate 112 and also allows all light passing through the condenser lens 111 to be concentrated on the collector plate 112.

As shown in FIGS. 1 and 2, the thermoelectric element 120 may be formed in a plate shape and provided on the lower side of the heat collection module 110, and may be provided in one or more pieces depending on its size. However, even if one or more thermoelectric elements 120 are provided on the lower side of the heat collecting module 110, the cross section of the entire thermoelectric element 120 is formed to have the same size and shape as the cross section of the heat collecting plate 112, so that the heat collected through the heat collecting plate 112 It is desirable to effectively transmit it to one surface of the thermoelectric element 120.

Therefore, one side of the thermoelectric element 120 adjacent to the collecting plate 112 is heated due to the heat collected through the collecting module 110, forming a high temperature section on one side, and forming a low temperature section on the other side relative to the one side, and the high temperature section and the low temperature section are formed. Electrical energy can be produced because electromotive force is generated due to the temperature difference. At this time, a large temperature difference between one side and the other side of the thermoelectric element 120 can be produced in order to produce stable and continuous electrical energy, and a cooling module 130 is provided on the lower side of the other side of the thermoelectric element 120.

The cooling module 130 cools the other surface of the thermoelectric element 120 so that a low temperature portion whose temperature is relatively lower than one surface of the thermoelectric element 120 is formed on the other surface of the thermoelectric element 120. As shown in FIGS. 1 to 3, the cooling module 130 in the present invention is formed in the shape of a cone whose width becomes wider downward, thereby minimizing the influence of the high-temperature heat collecting plate 112 by collecting solar heat. Heat can be dissipated over a large area.

For example, the cooling module 130 may be formed so that its upper end has a shape and size corresponding to the other surface of the thermoelectric element 120. As a specific example, when the thermoelectric element 120 is in the shape of a square plate, the cooling module 130 may be formed as a square pyramid whose upper end is in the shape of a square plate with the same size as the thermoelectric element 120. And, as shown in FIGS. 1 and 2, the cooling module 130 may be formed to be longer than the length of the heat collection module 110, for example, about 2 to 3 times longer than the length of the heat collection module 110. It can be. This is to increase the contact surface with external air by increasing the overall area of the cooling module 130, and to ensure that the bottom, which is one of the heat dissipating parts of the cooling module 130, is spaced as much as possible from the heat collecting plate 112.

In addition, as shown in FIG. 3, the cooling module 130 has a plurality of cooling protrusions 131 formed on a portion adjacent to the outside, which can further increase the contact surface with the air, and the outer surface of the cooling module 130 is constant. A plurality of cooling protrusions 131 may be formed as they are indented at intervals. For example, although the cooling module 130 dissipates heat as a whole, considering that the lower end is furthest from the heat collecting plate 112, the cooling protrusion 131 may be formed at least at the lower end of the cooling module 130. In addition, the plurality of cooling protrusions 131 are formed not only on the lower part but also on the side of the cooling module 130, so that cooling efficiency can be further improved.

In addition, in the cooling module 130, as shown in FIG. 5A, flow holes 130a through which air can pass may be formed penetrating in the forward and backward or left and right directions, and one or more flow holes 130a may be formed. You can. These flow holes (130a) increase the area in contact with external air and allow external air to pass through them, so heat dissipation (cooling) can be achieved more quickly.

The power generation structure 100 as described above collects sunlight through the condenser lens 111 and concentrates the solar heat on the collector plate 112, and also has a cooling module 130 in the shape of a cone whose width widens downward. Through this, heat can be dissipated over a large area while being minimally affected by the heat collecting plate 112, and the temperature difference between the high temperature part and the low temperature part of the thermoelectric element 120 can be maximized, thereby increasing power generation efficiency.

Meanwhile, the solar power generation device of the present invention may include a plurality of power generation structures 100 as shown in FIGS. 4 to 8. A plurality of power generation structures 100 are arranged adjacent to each other on the same plane, and adjacent power generation structures 100 may be combined to form one unit. At this time, a ventilation passage 200 through which external air can pass may be formed between the plurality of power generation structures 100, as shown in FIGS. 4 to 8.

To this end, the upper end of the condenser lens 111 included in the plurality of power generation structures 100 and the lower end of the cooling module 130 may be formed so that the cross sections have the same size and shape. For example, in the power generation structure 100, the heat collection module 110 is formed in the shape of an inverted pyramid and the cooling module 130 is formed in the shape of a square pyramid, with the top of the heat collection module 110 and the bottom of the cooling module 130. When formed to achieve the same size and shape, the entire plurality of power generation structures 100 can form a structure in which the upper and lower ends are closed and the ventilation passage 200 is formed in the front-back or left-right direction, or the front-back and left-right direction. there is.

Since external air passes along the ventilation path 200 formed by arranging the plurality of power generation structures 100, the cooling (heat dissipation) efficiency of the cooling module 130 can be improved.

Heating or hot water can be provided using these plural power generation structures 100. As an example, as shown in FIG. 5A, installation holes 112a may be formed through the plurality of heat collecting plates 112 included in the plurality of power generation structures 100 in the front-back or left-right direction, as shown in FIG. 5b. Likewise, the flow pipe 300 may be installed to pass through the installation hole 112a formed in each heat collecting plate 112. A fluid passes inside the flow pipe 300, and the fluid is heated in the process of continuously passing through the solar heat collecting plate 112, so it can be used as heating or hot water.

A plurality of power generation structures 100 may be installed to be spaced apart from the ground. For example, a plurality of power generation structures 100 coupled to each other to form an integrated body may be spaced apart from the ground by being combined with a plurality of supports 600 erected on the ground. It can be installed properly. At this time, as shown in FIG. 6, a plurality of supports 600 can not only be directly coupled to a plurality of power generation structures 100 interconnected to form an integrated body, but also integrated as shown in FIGS. 7 and 8. A plurality of power generation structures 100 coupled to each other may be accommodated within the frame 500 and a plurality of supports 600 may be coupled to the frame 500.

The frame 500 is formed to surround the side edges of the plurality of power generation structures 100 that are integrated with each other as shown in FIGS. 7 and 8, and forms the upper and lower ends of the plurality of power generation structures 100. It can be exposed to the outside, and a through hole 510 is formed in the frame 500 to communicate with the ventilation passage 200 formed between the adjacent power generation structures 100, so that external air flows through the through hole 510 and the ventilation passage 200. ) can pass through the inside of the frame 510. In addition, a ventilation passage may be formed between the power generation structure 100 disposed at the outermost part of the plurality of power generation structures 100 interconnected to form an integrated body and the frame 500, and the frame may be formed to correspond to the ventilation passage. A through hole may be formed at (500).

As described above, as the plurality of power generation structures 100 are installed spaced apart from the ground, additional power generation can be achieved by utilizing the space between the ground and the plurality of power generation structures 100. To this end, the present invention may further include a wind power generator 400 installed between the cooling module 130 included in the plurality of power generation structures 100 and the ground, as shown in FIGS. 6 and 8. The wind power generator 400 can be installed to be spaced apart from the ground through an installation rod formed downward from the bottom of the cooling module 130, and generates electrical energy using rotational force through the flow of air passing between the plurality of supports 600. can produce.

100: Power generation structure 110: Heat collection module
111: condenser lens 112: collector plate
112a: Installation hole 113: Reflector
120: thermoelectric element 130: cooling module
130a: Flow hole 131: Cooling protrusion
200: ventilation passage 300: flow pipe
400: wind generator 500: frame
600: support

Claims (8)

A heat collection module (110) that collects heat together;
A thermoelectric element 120 in which a high temperature portion is formed on one surface due to heat collected through the heat collection module 110; and
A power generation structure 100 including a cooling module 130 that cools the other surface of the thermoelectric element 120 to form a low temperature portion on the other surface of the thermoelectric element 120,
The collection module 110 is formed to become narrower as it goes downward, and has a condenser lens 111 at the top to collect sunlight, and a condenser lens 111 at the bottom where the focus of the condenser lens 111 is located. and includes a heat collecting plate 112 that absorbs heat generated from the concentrated sunlight,
The cooling module 130 is a solar power generation device characterized in that it is formed in the shape of a cone whose width becomes wider as it goes downward. According to paragraph 1,
The solar power generation device is characterized in that the condenser lens 111 is a convex lens or a Fresnel lens. According to paragraph 1,
The collecting module 110 has an upper end coupled along the edge of the collecting lens 111 and a lower end coupled along the edge of the collecting plate 112, and which of the light passing through the collecting lens 111 does not go toward the collecting plate 112. A solar power generation device further comprising a reflector (113) that reflects light toward the collector (112). According to paragraph 1,
The cooling module 130 is a solar power generation device characterized in that it is formed to be longer than the length of the heat collection module 110. According to paragraph 1,
The cooling module 130 is a solar power generation device characterized in that a plurality of cooling protrusions 131 are formed in a portion adjacent to the exterior. According to paragraph 1,
A plurality of the power generation structures 100 are arranged adjacent to each other on the same plane,
The upper end of the condensing lens 111 and the lower end of the cooling module 130 are formed so that the cross section has the same size and shape, thereby forming a ventilation passage 200 through which air can pass between adjacent power generation structures 100. A solar power generation device characterized in that it is formed. According to clause 6,
The plurality of heat collecting plates 112 included in the plurality of power generation structures 100 have installation holes 112a through which flow pipes 300 through which fluid passes are installed in the front-back or left-right direction. Power generation device. According to clause 6,
The plurality of power generation structures 100 are installed to be spaced apart from the ground,
A solar power generation device further comprising a wind power generator 400 installed between the cooling module 130 included in the plurality of power generation structures 100 and the ground.

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