KR20100098973A - Apparatus for photovoltaic power generation - Google Patents

Abstract

PURPOSE: A photovoltaic power generator is provided to increase the generating amount of a solar cell module by increasing the amount of incident light which is received on a both sides light-receiving type solar cell module. CONSTITUTION: A both sides light-receiving type solar cell module(111) is embedded in a solar cell panel(110). Supporting rods(103, 104) support the edge of the solar cell panel. Rotation rods(131, 132) are rotatably connected to a rotary shaft. Both edges of a reflecting panel(130) are combined to the other ends of the rotation rods. A driving part(140) is installed to the rotation rods. The reflecting panel rotates around the solar cell panel by the driving part.

Description

Photovoltaic power generation device {APPARATUS FOR PHOTOVOLTAIC POWER GENERATION}

The present invention relates to a photovoltaic device, and to a photovoltaic device that increases the power generation efficiency of a double-sided light receiving solar cell module using a reflector.

As the depletion of fossil energy resources such as petroleum and coal, which have been used as the main energy sources, is predicted and the interest in the environment is increasing, interest in alternative energy to replace fossil energy resources is increasing.

In particular, there is no problem of environmental pollution among alternative energy, and research and development on solar energy, which can be used semi-permanently by one facility investment, is being actively conducted.

A solar cell using solar energy is a solar cell that generates steam required to rotate a turbine using solar heat, and a solar cell that converts sunlight into electrical energy using the properties of semiconductors. It is classified into light. Typically, a solar cell refers to a solar cell, hereinafter also referred to as a solar cell in the present specification.

The solar cell forms a solar cell module by collecting cells, which are the minimum units of current generation, and forms a solar cell array by connecting a plurality of such solar cell modules in series and in parallel. use.

However, in the case of the single-sided light-receiving solar cell module, since the position of the sun changes over time, a method of changing the direction of the solar cell module in a direction in which sunlight can be incident as much as possible to increase power generation efficiency is used. .

However, the bifacial photovoltaic solar module uses a transparent electrode and two PN junctions so that the power can be generated not only when the solar is irradiated from the front side of the solar cell module but also when irradiated from the rear side. It is to improve the power generation efficiency than the single-sided light receiving solar cell module.

Therefore, unlike the conventional single-sided light-receiving solar cell module, such a double-sided light-receiving solar cell module can obtain a high power generation efficiency without using a solar tracking function, but the sunlight is a light receiving surface on one side of the double-sided light-receiving solar cell module While it is incident on the solar cell, sunlight is not incident on the other light receiving surface of the solar cell module.

That is, even though the double-sided light-receiving solar cell module does not use the solar tracking function, it is possible to obtain more power generation efficiency than the single-sided light-receiving solar cell module with the solar tracking function. This is not true.

The present invention has been made to improve the above disadvantages, an object of the present invention is to provide a photovoltaic device that can increase the power generation efficiency of the double-sided light receiving solar cell module using a reflector.

In order to achieve the above object, according to an aspect of the present invention, a solar cell panel with a double-sided light-receiving solar cell module and a solar cell panel to support the edge of the solar panel to be upright, but the horizontal portion is formed on the upper end One end is connected to the support rod, the horizontal portion is connected to the other end of the rotating rod and the rotating rod rotatably connected to the horizontal axis, and one side includes a reflective plate formed with a reflective surface, the rotation of the reflecting plate Even if the position is changed, the solar cell is provided with the reflective surface facing the solar panel.

Here, the photovoltaic device may further include a drive unit installed at the upper end of the rotating rod to rotate the rotating rod relative to the support rod, the drive unit, a worm wheel formed or installed in the horizontal portion, and a worm gear meshed with the shock wheel Drive shafts formed or installed and the drive device for rotating the drive shaft may be included.

At this time, the photovoltaic device further includes a solar position tracking sensor for detecting the position of the sun, the drive unit can be operated according to the signal of the solar position tracking sensor. Alternatively, the apparatus may further include a storage device in which data regarding a change in the position of the sun over time is stored, so that the driving unit may be operated according to the data.

In addition, the photovoltaic device may further include a rotation support for supporting the lower end of the support rod and rotating the solar cell panel in a horizontal direction.

On the other hand, the reflective surface may be formed in a curved shape to focus the incident solar light on the solar panel, the photocatalyst may be coated on the surface and the reflective surface of the solar cell panel. In addition, a light metal alloy or a synthetic resin may be used as the material of the reflector, and as the light metal alloy, aluminum, magnesium, or titanium may be used.

On the other hand, in order to achieve the above object, according to another aspect of the present invention, the front and rear surfaces by the frame and a plurality of support rods are arranged in the vertical direction inside the frame and coupled to the horizontal direction on each side, respectively A plurality of double-sided light receiving solar panels supported on both sides of the frame, a plurality of rotating rods having one end rotatably connected to the plurality of support rods on each of the plurality of support rods, and both sides of each of the plurality of solar panels Coupled to the other end of a plurality of rotary rods located in a pair and a plurality of reflecting plate and a plurality of reflecting plate formed with a reflecting surface on each surface so that each of the drive unit to rotate in the vertical direction around each of the plurality of solar panels Including a plurality of reflecting surfaces, even if the positions of the plurality of reflecting plates are changed by the rotation of the plurality of rotating rods. Photovoltaic device toward the solar cell panel.

Here, the driving unit is rotatably penetrated to one side of the frame, respectively, a plurality of support rods located on one side of the frame among the plurality of support rods are rotatably supported on one side thereof, and at one end thereof. A plurality of hollow rotating shafts connected to one end of the plurality of rotating rods located at one side of the frame among the plurality of rotating rods, a plurality of worm wheels provided at the other ends of the plurality of hollow rotating shafts, and a plurality of worm wheels It includes a drive shaft is formed or installed a plurality of worm gear and a drive device for rotating the drive shaft.

The solar cell apparatus according to the aspect of the present invention may increase the amount of solar light incident on the double-sided light receiving solar cell module to increase the amount of generation of the solar cell module, thereby increasing the power generation efficiency of the solar cell apparatus.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

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

1 is a perspective view of a photovoltaic device according to an embodiment of the present invention.

Referring to FIG. 1, the photovoltaic device 100 according to an embodiment of the present invention includes a solar cell panel 110 and a reflector plate 130. Here, the solar cell panel 110 is a double-sided light-receiving solar cell panel 110 in which a double-sided light-receiving solar cell module 111 is built and a light-receiving part is formed on both sides.

Here, the solar cell panel 110 may include two double-sided light-receiving solar cell module 111 as shown, although not shown, one or three or more double-sided light-receiving solar cell module, if necessary It can also be built in. The number of double-sided light-receiving solar cell modules 111 embedded in the solar cell panel 110 may be determined according to the size of the solar cell apparatus 100 or the margin of space in which the solar cell apparatus 100 is installed.

Both sides of the solar cell panel 110 are supported by a pair of support rods 103 and 104. In this case, horizontal portions are formed at upper ends of the pair of support rods 103 and 104, respectively, and the horizontal portions are coupled to the edges of the solar cell panel 110 so that the solar cell panel 110 is supported while being upright.

One end of the pair of rotation rods 131 and 132 is rotatably connected to the horizontal portion of each of the pair of support rods 103 and 104. Here, the rotation rods 131 and 132 are connected to rotate the horizontal portion in the vertical direction with respect to the rotation axis, respectively.

Both ends of the panel-shaped reflector plate 130 are coupled to the other ends of the pair of rotating rods 131 and 132. One surface of the reflector 130 is provided with a reflective surface (not shown) having a high reflectance against sunlight. Accordingly, the reflector plate 130 may rotate around the solar cell panel 110 in the vertical direction with the horizontal portion of the support rods 103 and 104 as the central axis. At this time, the reflecting surface of the reflecting plate 130 is installed on the surface facing the solar cell panel 110, even if the position of the reflecting plate 130 is changed by the rotation of the rotating rods (131, 132), the reflecting surface is always the solar cell panel Head 110.

On the other hand, the lower end of the pair of support rods (103, 104) is supported by a rotation support 101 that is rotatable in the horizontal direction. Therefore, the direction in which the front and rear surfaces of the solar cell panel 110 are directed by the rotation of the rotation support 101 may be changed.

For reference, the photovoltaic device 100 according to an embodiment of the present invention includes a rotation support 101, but in some cases the rotation support 101 is not installed, a pair of support rods (103, 104) The lower end of the) may be supported directly on the bottom surface. The rotating support 101 may be a manual method in which a user directly rotates, or may have a driving device (not shown) embedded therein to rotate according to a signal of a controller (not shown).

The driving unit 140 is installed on one of the rotating rods 132 of the pair of rotating rods 131 and 132, and the rotating connection part 141 is installed on the other side of the rotating rods 132 and 132. Here, the rotation connecting portion 141 is a portion in which the rotating rod 131 is connected to rotate the horizontal portion of the support rod 103 to the rotation axis. In addition, the driving unit 140 is a portion capable of applying rotational force to the rotating rod 132 so that the rotating rod 132 can rotate in the vertical direction with the horizontal portion of the support rod 104 as the rotating shaft.

At this time, since the pair of rotating rods 131 and 132 are connected to each other by the reflecting plate 130, when one rotating rod 132 is rotated by the driving unit 140, the reflecting plate 130 and the other rotating rod 131 also rotates. Therefore, by the operation of the driving unit 140, the reflecting plate 130 is rotated in the vertical direction around the solar cell panel 110.

For reference, the user may directly rotate the reflector 130 without installing the driving unit 140 in the solar cell apparatus 100. However, as will be described in detail below, the reflector 130 should be rotated according to the position of the sun, while the position of the sun is continuously changed during the day, when the driver 140 is not installed, the user frequently changes the reflector ( 130) should be adjusted. Therefore, the driving unit 140 is installed in the photovoltaic device 100 according to an embodiment of the present invention to improve user convenience.

Various methods may be applied to the driver 140 to rotate the reflector 130 around the solar cell panel 110. The driving unit 140 according to an example thereof will be described with reference to FIG. 2.

FIG. 2 is an enlarged view of a portion indicated by A in FIG. 1.

Referring to FIG. 2, the driving unit 140 installed at the upper end of the rotating rod 132 includes a driving device 150, a driving shaft 151, and a worm wheel 155.

The driving device 150 is a device for rotating the driving shaft 151 installed on one side, and an electric motor may be used. A portion of the drive shaft 151 is integrally formed with a worm gear (worm gear 155), or is manufactured separately and installed. A worm wheel 105 is engaged with the worm gear 155. At this time, the worm gear 155 is formed integrally with the horizontal portion of the support rod 104 or separately manufactured and installed, even if the worm gear 155 is manufactured separately and installed in the horizontal portion of the support rod 104, the worm gear 155 ) Is firmly fixed to the horizontal portion of the support rod 104.

Therefore, when the driving device 150 is operated to rotate the driving shaft 151, the worm gear 155 rotates the worm wheel 105. Here, the worm gear 155 is installed on the upper end of the rotating rod 132, the worm wheel 105 is fixed to the horizontal portion of the support rod 104, so that when the worm gear 155 rotates the rotating rod 132 The support rod 104 is rotated about the horizontal portion.

Therefore, the reflector 130 rotates in the vertical direction around the solar cell panel 110 according to the operation of the drive unit 150, and when the direction in which the drive unit 150 rotates the drive shaft 151 is changed, the reflector plate ( The direction of rotation of 130 is also changed.

Operation of the photovoltaic device 100 according to an embodiment of the present invention having the structure as described above will be described with reference to FIGS. 3 to 4.

3 to 4 are side views illustrating a state in which the photovoltaic device 100 according to an embodiment of the present invention operates in accordance with the direction in which sunlight is incident.

Referring to FIG. 3, the reflecting plate 130 is moved to a position opposite to one side of the solar cell panel 110.

When the photovoltaic device 100 is installed in a high elevation such as a ridge, the solar cell panel 110 fixed in an upright state as shown in FIG. It may be incident in a direction perpendicular to one side of the light receiving surface.

Here, as described with reference to FIG. 1, a reflective surface (not shown) is formed on a surface of the reflecting plate 130 facing the solar cell panel 110. Thus, sunlight is reflected by a reflecting surface (not shown).

Therefore, when the incident light 1 is incident in a direction perpendicular to the light receiving surface of one side of the solar cell panel 110, the reflecting plate 130 is rotated as shown, so that the incident light 1 causes the solar cell panel 110 to move. After being transmitted, the light is reflected by a reflecting surface (not shown) of the reflecting plate 130 to be reincident to the other light receiving surface of the solar cell panel 110 (hereinafter referred to as “reflected light”).

In this case, incident light 1 and reflected light 2 are incident on both light receiving surfaces of the double-sided light-receiving solar cell module 111 embedded in the solar cell panel 110. Accordingly, since a large amount of sunlight is incident on the double-sided light-receiving solar cell module 111, the amount of power generation of the double-sided light-receiving solar cell module 111 is increased as compared with the case where there is no reflector 130.

In order to increase the amount of power generated by the double-sided light receiving solar cell module 111 as much as possible, the reflected light 2 by the reflecting surface (not shown) of the reflecting plate 130 should be incident to the solar cell panel 110 as much as possible. Therefore, the degree of rotation of the rotating rod 132 relative to the support rod 104 by using the driving unit 140 may be adjusted so that the reflector 130 may be moved to an optimal position according to the angle of the incident light 1. . This will be described with reference to FIG. 4.

Referring to FIG. 4, incident light 1 is incident at an angle of a with respect to an imaginary horizontal line H passing through the center axis of the solar cell panel 110, that is, the horizontal portion of the support rod 104.

In this case, as described with reference to FIG. 3, in order to increase the amount of power generated by the double-sided light receiving solar cell module 111, the reflected light 2 by the reflecting surface (not shown) of the reflecting plate 130 is a solar cell. The panel 110 should be re-entered as much as possible.

Here, if the angle (c) formed by the rotating rod 132 and the reflecting plate 130 is a right angle, and the angle (b) formed by the rotating rod 132 and the imaginary horizontal line (H) is equal to a both sides The light-receiving surface of the reflected light 2 side of the light-receiving solar cell module 111 is within the irradiation range of the reflected light 2. Therefore, the entire light-receiving surface of the reflected light 2 side of the double-sided light receiving solar cell module 111 may be utilized for power generation, thereby increasing the power generation efficiency of the solar cell panel 110.

Therefore, by adjusting the position of the reflector 130 according to the altitude of the sun, the power generation efficiency of the solar cell panel 110 can be greatly increased. The method of adjusting the position of the reflector 130 according to the altitude of the sun will be described again below.

On the other hand, when attaching a diffuser (not shown) to the light receiving surface of the solar cell panel 110, even if the incident light (1) is not vertically incident on the light receiving surface of the double-sided light receiving solar cell module 110 The amount of power generated by the double-sided light receiving solar cell module 110 is not greatly reduced. That is, even if the altitude of the sun changes to some extent over time, the power generation efficiency of the solar cell panel 110 is not greatly reduced.

However, when both light receiving surfaces of the solar cell panel 110 are installed to face the north-south direction, the solar light is incident to both edges of the solar cell panel 110 at a time near sunrise or sunset. In particular, when the two light receiving surfaces of the solar panel 110 are directed toward the north-south direction in a low latitude region where the south mid-high altitude of the sun is very high, the sunlight continues to both sides of the solar cell panel 110 and Since it is incident on the upper edge, the power generation efficiency of the solar cell panel 110 is lowered. Therefore, power generation efficiency may be increased when both light receiving surfaces of the solar cell panel 110 face the east-west direction.

However, when one light receiving surface of the solar cell panel 110 is rotated in the horizontal direction along the azimuth angle of the sun by using the rotation support described in FIG. 1 (see 101 in FIG. 1), the solar cell panel 110 ) Can further increase the power generation efficiency. At this time, as mentioned above, if the position of the reflector 130 is also adjusted according to the altitude of the sun, the power generation efficiency of the solar cell panel 110 can be maximized.

Here, as a method of tracking the position of the sun, that is, the altitude and the orientation, a method of directly measuring the position of the sun using a solar position tracking sensor (not shown) or a photovoltaic device (see 100 of FIG. 1). You can use the method of estimating the sun's position using data on the change of the sun's position over time in the area where) is installed.

That is, a solar position tracking sensor (not shown) is installed in the photovoltaic device (see 100 in FIG. 1), and the driving device installed in the driving unit 140 according to the signal of the solar position tracking sensor (not shown) (FIG. 1, 150) may be operated to adjust the position of the reflector 130 according to the altitude of the sun so that the reflected light 2 can be reincident to the solar cell panel 110 as much as possible.

At this time, by rotating the rotation support (see 101 in FIG. 1) according to the signal of the solar position tracking sensor (not shown) so that one side of the light receiving surface of the solar panel 110 toward the horizontal direction of the sun solar panel ( The power generation efficiency of 110) can be maximized.

In addition, in the case of utilizing data on the change in the position of the sun over time in the region where the photovoltaic device (see 100 in FIG. 1) is installed, the sun is stored according to the data stored in the storage device with reference to the current time. By adjusting the position of the reflector plate 130 and the direction of the solar cell panel 110 toward the estimated position, the power generation efficiency of the solar cell panel 110 can be maximized.

On the other hand, the photovoltaic device (see 100 of FIG. 1) is installed outdoors. Accordingly, the pair of support rods 104 (see 103 in FIG. 1), the rotating rod 132 (see 132 in FIG. 1), and the reflector plate 130 should be made of a material having high water resistance and weather resistance, and the driving unit 140 may be It should be waterproof.

In addition, since a strong force may be applied to the solar cell panel 110 and the reflector 130 by a typhoon or a local gust, the support rod 104 (see 103 in FIG. 1) and the rotation rod 132 (see 132 in FIG. 1). ) Shall be made of a material with high compressive strength, bending strength and shear strength.

In particular, in order to minimize the power required to change the position of the reflector 130, the reflector 130 should be as lightweight as possible. Therefore, a light metal alloy or a synthetic resin may be used as the material of the reflector plate 130. Here, aluminum, magnesium, and titanium may be used as the light metal alloy, and various resins such as fiberglass reinforced plastic and carbon fiber reinforced plastic may be selected as the synthetic resin. Can be used.

On the other hand, when foreign matter is attached to the surface of the solar cell panel 110 and the reflective surface (not shown) formed on one surface of the reflecting plate 130, the power generation efficiency of the solar cell panel 110 may be reduced. Therefore, although it is necessary to clean the surface of the solar cell panel 110 and the surface of the reflective surface (not shown) on a regular basis, such a cleaning operation may cost a lot of time and labor costs.

Therefore, by coating a photocatalyst such as titanium dioxide having superhydrophilicity on the surface of the solar cell panel 110 and the reflecting plate 130, foreign matter adhered by self cleaning in rainy weather can be removed. have.

5 shows a modification of the solar cell apparatus according to the embodiment of the present invention.

Referring to FIG. 5, the curved reflective plate 150 is supported by the rotating rod 132. The curved reflective plate 150 allows the reflected light 3 to be focused on the other light receiving surface of the solar cell panel 110.

As described above, the flat panel reflector (see 130 in FIG. 4) is a reflector when the incident light 1 is not incident perpendicularly to the light receiving surface of the incident light 1 side of the solar cell panel 110. The reflected light 3 reflected from the edge portion of the 150 is outside the edge portion of the light receiving surface of the reflected light 3 side of the solar cell panel 110.

Therefore, when the curved reflective plate 150 is used, sunlight incident on the reflective plate 150 may be reflected toward the light-receiving surface of the reflected light 3 side of the solar cell panel 110 as much as possible. Therefore, the power generation efficiency of the solar cell panel 110 can be increased.

Here, as shown, the entire reflecting plate 150 may be manufactured in a curved shape, or only a reflecting surface (not shown) formed on one surface of the reflecting plate 150 may be manufactured in a curved shape. However, the radius of curvature of the reflecting plate 150 or the reflecting surface (not shown) may be considered in consideration of the area of the light receiving portion of the solar cell panel 110 and the length of the rotating rod 132. To reflect the reflected light 3 to the largest area of the light-receiving surface of the reflected light 3 side.

The solar cell apparatus (see 100 of FIG. 1) according to the exemplary embodiment of the present invention described with reference to FIGS. 1 to 4 and the solar cell apparatus according to the exemplary embodiment described with reference to FIG. 5 (see FIG. 1). 100 is a relatively small photovoltaic device (see 100 in FIG. 1) that uses one solar panel 110 and one reflector plate 150 (see 130 in FIG. 1), respectively. Therefore, it can be used in a relatively narrow area or a place that does not require a large power.

However, a plurality of solar panels 110 and reflectors (see 130 in FIG. 1) may be installed and used in an area that can utilize a large area, such as a desert, or a place requiring large power. This will be described with reference to FIG. 6.

6 is a perspective view of a photovoltaic device according to another embodiment of the present invention.

Referring to FIG. 6, in the solar cell apparatus 200 according to another embodiment of the present invention, a plurality of solar cell panels 210 and reflecting plates 230 are installed in the frame 202. Here, the plurality of solar cells 210 and the reflector 230 is a solar cell panel (see FIG. 1 of FIG. 1) of a solar cell apparatus according to an embodiment of the present invention described with reference to FIGS. 1 and 110) and the reflection plate (see 130 of FIG. 1), so that redundant description will be omitted.

In addition, since the connection structure of each of the plurality of solar panel 210 and the plurality of reflecting plates 230 installed in the frame 202 is the same, the connection structure of a set of the solar panel 210 and the reflecting plate 230 By explaining the whole description will be replaced. Therefore, in the description of the photovoltaic device 200 according to another embodiment of the present invention, the expression 'plurality' will be omitted except for a specific case.

The front and rear surfaces of the frame 202 may be opened to allow sunlight to enter therein, and the top surface may also be opened as shown. Accordingly, the frame 202 may have a shape in which both side surfaces and a bottom surface of the panel shape are connected.

Support rods 203 and 204 are coupled to both sides of the solar cell panel 210 one by one in a horizontal direction. Of these, an end of the support rod 203 coupled to one side of the solar cell panel 210 is supported by one side of the frame 202. The hollow shaft 220 is coupled to the support rod 204 coupled to the other side of the solar cell panel 210.

Here, the hollow rotating shaft 220 is installed in a shape penetrating the other side surface of the frame 202, it is installed rotatably with the central axis in the longitudinal direction as the rotation center. That is, although not shown, a bearing may be interposed between the penetrating portion of the frame 202 and the outer circumferential surface of the hollow rotating shaft 220.

One side of the hollow rotating shaft 220 supports the end of the support rod 204. At this time, the end of the support rod 204 is inserted into the hollow portion (not shown) of the hollow rotating shaft 220, the hollow rotating shaft 220 and the support rod 204 is relatively rotatably connected, but the hollow rotating shaft 220 ) Supports the support rod 204 so as not to shake in the direction except the longitudinal direction.

Therefore, the solar cell panel 210 is supported on both sides of the frame 202 by the support rod 203 coupled to one side and the support rod 204 coupled to the other side.

On the other hand, the other end of the hollow rotating shaft 220 is a worm wheel 225 is installed. At this time, since the other end of the hollow rotating shaft 220 protrudes to the outside of the other side of the frame 202, it is installed outside the worm wheel 225 or the other side of the frame 202.

One end portion of the rotating rod 232 is coupled to one side edge portion of the hollow rotating shaft 220. In addition, one end of the rotation rod 231 is connected to the support rod 203 installed on one side of the solar cell panel 210 so as to form a rotation connector 241 so as to be rotatable in a vertical direction about the support rod 203. .

Accordingly, a pair of rotary rods 231 and 232 are installed at both sides of the solar cell panel 210 so as to rotate the support rods 203 and 204 in the vertical direction on the rotation axis, respectively. The other end of each of the pair of rotating rods 231 and 232 is coupled to both edges of the reflecting plate 230. Thus, the reflector 230 may rotate the circumference of the solar cell panel 210 in the vertical direction.

Here, when the worm wheel 225 rotates, the rotating rod 232 connected to the hollow rotating shaft 220 rotates together. Since the pair of rotating rods 231 and 232 are connected to each other by the reflecting plate 230, the worm wheel As the reference numeral 225 rotates, the reflecting plate 230 rotates around the solar cell panel 210.

On the other hand, the drive shaft 251 is provided in the vertical direction outside the other side of the frame 202. The worm gear 255 is integrally formed on the drive shaft 251 or separately manufactured and installed. The worm gear 255 is engaged with the worm wheel 255. Accordingly, when the drive shaft 251 rotates, the wheel wheel 225 also rotates, and the reflection plate 230 rotates by the rotation of the worm wheel 225.

At this time, the drive shaft 251 is provided with a drive device 250 for rotating the drive shaft 251. Accordingly, the position of the reflective plate 230 may be changed by the rotation of the driving device 250, and the rotational direction of the reflecting plate 230 may also be changed according to the direction in which the driving device 250 rotates the driving shaft 251. have.

Here, in order to enable the drive shaft 251 to rotate stably, a bracket 208 in which the support hole 209 is formed may be installed at a part of the frame 202 to rotatably support the drive shaft 251.

One set of a connection structure consisting of the solar cell panel 210, the support rods 203 and 204, the rotation rods 231 and 232, the reflecting plate 230, the hollow rotating shaft 220 and the worm wheel 225 as described above In this regard, in the photovoltaic device 200 according to another embodiment of the present invention, a plurality of sets of connection structures are arranged in a vertical direction, ie, in a vertical direction, to the frame 202.

Here, the number of connecting structures may be four sets as shown, or may be added or subtracted as needed.

In this case, a plurality of worm gears 255 are integrally formed or separately manufactured and installed on the drive shaft 251, and each of the plurality of worm gears 255 is engaged with each of the plurality of worm wheels 225. Therefore, when the driving device 250 rotates the driving shaft 251, each of the plurality of reflecting plates 230 rotates the circumference of each of the plurality of solar panels 210 in the vertical direction.

However, since the sunlight reaching the ground can be viewed as parallel light, the positions at which the plurality of reflecting plates 230 rotate around the plurality of solar cells 210 are set to be the same. Accordingly, the plurality of reflecting plates 230 are collectively rotated according to the angle at which the solar light is incident, so that the reflected light is re-incident on the light receiving surface opposite to the side where the solar light of the plurality of solar cells 210 is incident. , Power generation efficiency of the photovoltaic device 200 can be increased.

Meanwhile, the solar position tracking sensor described as being applicable to the photovoltaic device 200 according to another embodiment of the present invention may be applied to the photovoltaic device (see 100 of FIG. 1) according to the embodiment of the present invention. (Not shown) or by applying a storage device (not shown) in which data regarding a change in the position of the sun over time is operated, the driving device 250 is operated to generate power generation efficiency of the photovoltaic device 200. Can be further improved.

In addition, installing a device capable of rotating the frame 202 in the horizontal direction as shown in the rotation support (see 101 in FIG. 1) in the solar power generator 200 will maximize the power generation efficiency of the solar power generator 200. Can be.

As described above with reference to FIG. 6, the solar cell apparatus 200 includes a driving unit including a hollow rotating shaft 220, a worm wheel 225, a driving shaft 251, a worm gear 255, and a driving device 250. It is described as.

However, if necessary, the photovoltaic device 200 includes a hollow rotating shaft 220, a worm wheel 225, a driving shaft 251, a worm gear 255, and a driving device 250. 230 may be rotated.

At this time, although not shown, one end of the rotation rod 232 is rotatably connected directly to the support rod 204, the end of the support rod 204 is supported on the other side of the frame 202.

Although the above has been described with respect to the solar cell apparatus according to an embodiment of the present invention, the spirit of the present invention is not limited to the embodiments presented herein, those skilled in the art to understand the spirit of the present invention within the scope of the same idea In the above, other embodiments may be easily proposed by adding, changing, deleting, or adding a component, but this is also within the scope of the present invention.

1 is a perspective view of a photovoltaic device according to an embodiment of the present invention.

2 is an enlarged view of a portion indicated by A in FIG. 1.

3 to 4 is a side view showing the operation of the photovoltaic device according to an embodiment of the present invention.

5 is a modification of the photovoltaic device according to an embodiment of the present invention.

6 is a perspective view of a solar cell apparatus according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: photovoltaic device 101: rotational support

103, 104: support rod 110: solar cell panel

111: double-sided light receiving solar cell module 130: reflector

132: rotary rod 133: rotary connection

140: drive unit

Claims (19)

A solar cell panel having a double-sided light receiving solar cell module; A support rod supporting an edge of the solar cell panel so that the solar cell panel is upright and having a horizontal portion at an upper end thereof; A rotation rod having one end connected to the horizontal portion, the rotation rod rotatably connected to the horizontal portion; And Is coupled to the other end of the rotating rod, one surface includes a reflecting plate is formed, The photovoltaic device of claim 1, wherein the reflective surface faces the solar cell panel even when the position of the reflecting plate is changed by the rotation of the rotating rod. The method of claim 1, And a driving unit installed at an upper end of the rotating rod to rotate the rotating rod with respect to the supporting rod. The method of claim 2, In the drive unit, A worm wheel formed or installed in the horizontal portion; A drive shaft formed or provided with a worm gear meshed with the wheel; And Photovoltaic device comprising a drive device for rotating the drive shaft. The method of claim 2, Further comprising a sun position tracking sensor for detecting the position of the sun, Photovoltaic device for operating the driving unit in accordance with the signal of the solar position tracking sensor. The method of claim 2, Further comprising a storage device for storing data about the change in the position of the sun over time, The photovoltaic device in which the driving unit is operated according to the data. The method according to any one of claims 4 and 5, Supporting the lower end of the support rod, further comprising a rotation support for rotating the solar panel in a horizontal direction. The method of claim 1, The reflecting surface is a solar cell apparatus is formed in a curved shape so as to focus the incident sunlight on the solar panel. The method of claim 1, The photovoltaic device is coated with a photocatalyst on the surface and the reflective surface of the solar cell panel. The method of claim 1, The material of the reflecting plate is a light metal alloy or a synthetic resin photovoltaic device. 10. The method of claim 9, The light metal alloy is a photovoltaic device comprising aluminum, magnesium or titanium. A frame with a front and back surface open; A plurality of double-sided light receiving type solar cell panels arranged in a vertical direction inside the frame and supported on both sides of the frame by a plurality of support rods respectively coupled in a horizontal direction to both sides; A plurality of rotating rods, one end of which is rotatably connected to the plurality of supporting rods by a rotation shaft, respectively to the plurality of supporting rods; A plurality of reflecting plates coupled to the other ends of the pair of the plurality of rotating rods located at both side portions of each of the plurality of solar cell panels, each of which has a reflecting surface; And Each of the plurality of reflecting plate includes a driving unit for rotating the circumference of each of the plurality of solar panels in the vertical direction, Each of the plurality of reflecting surfaces faces the plurality of solar cell panels even when the positions of the plurality of reflecting plates are changed in rotation. The method of claim 11, The driving unit includes: It is installed to rotatably penetrate one side of the frame, each of the plurality of support rods on one side of the frame of the plurality of support rods rotatably supported, one end of the plurality of A plurality of hollow rotating shafts connected to one end of the plurality of rotating rods positioned on one side of the frame among the rotating rods of the rotating rods; A plurality of worm wheels installed on the other end of each of the plurality of hollow rotating shafts; A drive shaft formed or provided with a plurality of worm gears meshed with the plurality of worm wheels; And A photovoltaic device further comprising a drive device for rotating the drive shaft. The method of claim 11, Further comprising a sun position tracking sensor for detecting the position of the sun, Photovoltaic device for operating the driving unit in accordance with the signal of the solar position tracking sensor. The method of claim 11, Further comprising a storage device for storing data about the change in the position of the sun over time, The photovoltaic device in which the driving unit is operated according to the data. The method according to any one of claims 13 and 14, Supporting the lower portion of the frame, the photovoltaic device further comprises a rotating support for rotating the frame in a horizontal direction The method of claim 11, The material of the reflecting plate is a light metal alloy or a synthetic resin photovoltaic device. The method of claim 16, The light metal alloy is a photovoltaic device comprising aluminum, magnesium or titanium. The method according to claim 11, The reflecting surface is a solar cell apparatus is formed in a curved shape so as to focus the incident sunlight on the solar panel. The method of claim 11, The photovoltaic device is coated with a photocatalyst on the surface and the reflective surface of the solar cell panel.

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