WO2013005953A2

WO2013005953A2 - Apparatus for tracking sunlight, sunlight tracking method, and unit for detecting solar heat

Info

Publication number: WO2013005953A2
Application number: PCT/KR2012/005199
Authority: WO
Inventors: 이종우
Original assignee: Lee Jong Woo
Priority date: 2011-07-01
Filing date: 2012-06-29
Publication date: 2013-01-10
Also published as: KR101096606B1; WO2013005953A3

Abstract

One aspect of the present invention relates to an apparatus for tracking sunlight so as to be capable of improving the efficiency of sunlight use by tracking the position of the sun. The apparatus for tracking sunlight according to one embodiment of the present invention is characterized in that it comprises: a rotation-driving unit for driving the rotation of an object having a panel; and a unit for detecting solar heat for using a thermoelectric current generated by a temperature difference between a sunny spot and a shady spot, which are formed according to the altitude and bearing of the sun, and then selectively driving the rotation-driving unit so that a panel normal line of the object becomes parallel to a line of sunlight.

Description

Solar tracking device, solar tracking method, solar heat detection unit

The present invention relates to a solar tracking device and method, and more particularly, to a solar tracking device and method that can increase the utilization efficiency of sunlight by tracking the position of the sun using the temperature difference of the detection unit according to the sun and shade. will be.

Recently, the construction of photovoltaic devices, which are environmentally friendly energy facilities using solar, which is a clean energy source that does not cause environmental pollution while replacing fossil fuels, is gradually increasing.

The photovoltaic device can be classified into a fixed type in which a panel on which a solar cell module is mounted is fixed and a tracking type that tracks the orbit of the sun.

The tracking type tracks the position of the sun using power so that the direct sunlight of the sun can enter the solar cell module receiving the sunlight vertically.

That is, since the sun moves along the orbit from sunrise to sunset, when the device using the solar light is fixed, the sun cannot be received under optimal conditions, thereby degrading the efficiency of the system.

Therefore, when the solar cell module receiving the sunlight is tracked along the trajectory of the sun, it is possible to continuously receive the sunlight under the optimal conditions for a long time, thereby increasing the efficiency of the system.

Conventional solar tracking solar power generators have been developed, but all of them are complicated in structure and configuration, and in order to increase system efficiency, installation of a relatively large solar cell module is required, resulting in increased space constraints and manufacturing costs. There was a problem.

One aspect of the present invention is to provide a solar tracking device and method that can increase the utilization efficiency of sunlight by tracking the position of the sun.

Another aspect of the present invention is to provide a solar tracking device and method that can accurately detect the position of the sun to control the rotary drive unit for driving the tracking device.

Another aspect of the present invention is to provide a solar tracking device and method that can track the sun while simplifying the structure to be suitable for small-scale power generation facilities.

Another aspect of the present invention is to provide a solar heat detection unit that can increase the accuracy and reliability of solar tracking.

According to an embodiment of the present invention, a solar tracking device includes a rotation driving unit for rotating and driving an object having a panel; and thermoelectric power generated by a temperature difference between sunny and shaded panels according to altitude and azimuth of the sun. And a solar sensing unit for selectively driving the rotation driving unit such that the panel normal of the object is parallel to the sunlight.

In addition, the object is characterized in that it comprises a solar panel.

In addition, the rotation driving unit includes a high tool drive unit for rotating the solar panel in the altitude direction, and a bearing drive unit for rotating the solar panel in the azimuth direction, the high tool drive unit for rotating the solar panel in the altitude direction A first input line having a high rotational axis, a first end having a first input switching part fixed at the other end, and selectively contacting the first input switching part by a solar sensing unit to rotate the solar panel about the high rotational axis; And a first transmission line having a first connection switching unit, wherein the azimuth driving unit has an azimuth rotation axis for rotating the solar panel in an azimuth direction, a second input line having one end fixed thereto and a second input switching unit at the other end thereof; Is selectively contacted with the second input switching part by the solar sensing unit to And a second transmission line having a second connection switching unit for rotating the battery panel.

In addition, the solar heat sensing unit is formed in the center of the solar panel, the cylindrical case having four sensing units which are selectively heated by the solar heat therein; and two inside the cylindrical case symmetrically formed on the plane orthogonal to the high-direction rotation axis A first thermal couple having both ends joined to the sensing unit; and a second thermal couple having both ends joined to two sensing units inside the cylindrical case symmetrically formed on a plane perpendicular to the azimuth rotation axis. The first solenoid formed by one of the conductors, the second solenoid formed by one of the conductors of the second thermal couple, and the first solenoid are formed correspondingly, A first magnetic body and a second solenoid contacting the first input switching unit and the first connection switching unit when current flows in the first thermal couple with generated thermoelectric power; And a second magnetic body correspondingly formed to contact the second input switching unit and the second connection switching unit when current flows in the second thermal couple with the thermoelectric power generated by the temperature difference between the two sensing units of the second thermal couple. It is done.

In addition, the solar sensing unit has a first disc having four sensing units disposed at the center of the same surface as the solar cell panel, and is disposed in parallel with the first disc on the upper side of the first disc so that the four sensing units of the first disc are selectively heated. A disc assembly including a second disc to make; a first thermocouple having both ends joined to two sensing portions of the first disc symmetrically formed on a plane perpendicular to the high-direction rotation axis; and orthogonal to the azimuth rotation axis. A second thermal couple having both ends joined to two sensing portions of the first disc symmetrically formed on the surface; and a first solenoid formed by a conductor of any one of the first thermal couples; and any of the second thermal couples. A second solenoid formed by one conductive wire; and a first connection connected to the first input switching unit when a current flows in the first thermal couple with thermoelectric power corresponding to the first solenoid and generated by a temperature difference between the two sensing units. A first magnetic body contacting the switching unit; and a current formed in the second solenoid corresponding to the second solenoid to contact the second input switching unit and the second connection switching unit when current flows in the second thermal couple. A second magnetic body; characterized in that it comprises a.

In addition, the object includes a parasol, and the parasol includes a light shielding film; a first rotary drive unit including a high tool drive unit for rotating the light shielding film in a high direction, and an azimuth driving unit for rotating the light shielding film in an azimuth direction; An upper circumference provided with a first solar heat sensing unit for selectively driving the first rotational driving unit such that the panel normal of the light shielding film is parallel to the sunlight by using thermoelectric power by the temperature difference according to the altitude and the orientation; A second rotational drive unit including an east-west drive unit for rotating the light-shielding film in the east-west direction when is close to 0 ° or 180 °; and correspondingly formed to the light-shielding film when the sun's altitude is close to 0 ° or 180 °. Selecting a second rotational drive unit selectively by using the thermoelectric power by the temperature difference of the ground surface shadow surface so that the panel normal of the light shielding film is parallel with the sunlight It characterized in that it comprises a; thermal unit is provided with a lower holding.

A solar tracking method according to an embodiment of the present invention includes the steps of sensing solar heat in a plurality of sensing units: sensing a temperature difference between the plurality of sensing units; Allowing current to flow in the thermal couple with thermoelectric power generated by the temperature difference; A solenoid formed by the conducting wire of one of the thermal couples exerts a strong magnet force with the current flowing through the thermal couple; Tracking sunlight by switching an input line and a transmission line of the rotary drive device with the attraction force between the solenoid and the magnetic body; Characterized in that it comprises a.

According to another aspect of the solar tracking method according to an embodiment of the present invention, selecting an object having four sensing units selectively heated by solar heat; A first thermal couple having both ends joined to two sensing units disposed on a surface orthogonal to the first rotation axis of the object among four sensing units of the object is prepared, and is orthogonal to the second rotation axis of the object among the four sensing units of the object. Preparing a second thermal couple having both ends joined to two sensing units disposed on a surface thereof; Tracking the sun by selectively driving the first and second rotating shafts so that the panel normal of the object is parallel with the sunlight by using the thermoelectric power generated by the temperature difference between the first thermal couple and the second thermal couple, respectively. It characterized by including.

Solar sensing unit according to an embodiment of the present invention is a solar sensing member having a plurality of sensing unit that is selectively heated by the solar heat; and at least one thermal couple is bonded to both ends of the plurality of sensing unit of the solar sensing member; At least one solenoid formed by a conductor of any one of the thermal couples; and a rotary drive device when a current flowing in the thermal couple flows with a thermoelectric power formed corresponding to the solenoid and generated by a temperature difference between a plurality of sensing units of the thermal couple. It characterized in that it comprises a; a magnetic material to switch the input line and the transmission line of.

In addition, it characterized in that it further comprises an amplifier for amplifying the current flowing in the thermal couple.

Therefore, the solar tracking device and method according to an embodiment of the present invention has the effect of providing a solar tracking device and method that can increase the utilization efficiency of sunlight by tracking the position of the sun. In addition, by accurately detecting the position of the sun to control the rotary drive unit for driving the tracking device rotation. It also allows the sun to be tracked while simplifying the structure for small power plants.

In addition, the solar tracking device according to an embodiment of the present invention has the effect of eliminating the inconvenience of having to manually change the position of the parasol according to the movement of the sun by making a shade at a certain position.

In addition, the solar heat detection unit according to an embodiment of the present invention has an effect of increasing the accuracy and reliability of the solar tracking while simplifying the structure.

1 is a perspective view conceptually showing a solar tracking device according to an embodiment of the present invention.

2 is a perspective view conceptually showing a state in which the solar tracking device shown in FIG. 1 tracks the position of the sun.

Figure 3 is an enlarged perspective view of the solar heat detection unit of the solar tracking device according to an embodiment of the present invention.

4 is a view conceptually showing the operation relationship between the rotational drive unit and the solar heat detection unit of the solar tracking device according to an embodiment of the present invention.

5 to 7 are views for explaining a solar tracking method of the solar tracking device according to an embodiment of the present invention.

8 is a view showing a part of the solar tracking device according to another embodiment of the present invention.

9 is a view showing an example of the coupling relationship between the solar panel and the rotation drive unit.

10 is a view showing a solar tracking parasol according to an embodiment of the present invention.

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

1 is a perspective view conceptually showing a solar tracking device according to an embodiment of the present invention, Figure 2 is a perspective view conceptually showing a state in which the solar tracking device shown in Figure 1 tracks the position of the sun, 3 is a perspective view showing an enlarged solar heat detection unit of the solar tracking device according to an embodiment of the present invention, Figure 4 is an operation of the rotary drive unit and the solar heat detection unit of the solar tracking device according to an embodiment of the present invention A diagram conceptually illustrating a relationship.

As shown in Figures 1 to 4, the solar tracking device 10 according to an embodiment of the present invention is a solar panel 100, a rotation driving unit for driving the rotation of the solar panel 100 ( 200) and the panel normal Zp of the solar cell panel 100 is rotated to be parallel to the sunlight L using the thermoelectric power generated by the temperature difference between the sun and the sun of the panel according to the altitude and orientation of the sun. It is configured to include a solar heat detection unit 300 for selectively driving the drive unit 200.

The solar cell panel 100 may include both panel-shaped panels for absorbing sunlight, such as a solar heat collecting panel that obtains thermal energy from sunlight or a solar power panel that obtains electrical energy from sunlight.

The rotary drive unit 200 drives the solar panel 100 in accordance with the altitude and orientation of the sun. The rotary drive unit 200 is a high tool drive unit 210 for driving the solar panel 100 rotates about the rotational axis (H) in the altitude, and the solar cell panel 100 around the azimuth rotational axis (A) It comprises a bearing driving unit 220 for driving rotation.

The high tool moving part 210 includes a high rotational axis H for rotating the solar panel 100 in a high direction, a first input line 211 having a first input switching unit 211A, and a first input switching. And a first transfer line 212 having a first connection switching unit 212A for selectively contacting the unit 211A and driving the solar cell panel 100 about the high rotational axis H.

That is, the high tool moving unit 210 is the first input switching unit 211A of the first input line 211 and the first connection switching unit 212A of the first transmission line 212 by the solar detection unit 300 to be described later. In the case of contacting and switching), the solar cell panel 100 can be driven to rotate about the rotational axis H in the high direction.

The azimuth driver 220 may include an azimuth rotation axis A for rotating the solar panel 100 in an azimuth direction, a second input line 221 having a second input switching unit 221A, and a second And a second transfer line 222 having a second connection switching unit 222A selectively contacting the input switching unit 221A to rotationally drive the solar panel 100 about the azimuth rotation axis A. FIG. .

That is, the azimuth driving unit 220 is the second input switching unit 221A of the second input line 221 and the second connection switching unit 222A of the second transfer line 222 by the solar heat detection unit 300. When contacted and switched, the solar cell panel 100 can be driven to rotate about the azimuth rotation axis A. FIG.

The high tool driving unit 210 and the orientation driving unit 220 of the rotary drive unit 200 is controlled by the solar heat detection unit 300, such a solar heat detection unit 300 is to calculate the altitude and orientation of the sun The direction of the sunlight L is sensed to control the driving of the rotation driving unit 200 such that the panel normal Zp of the solar cell panel 100 is substantially parallel to the sunlight L. FIG.

The solar thermal sensing unit 300 includes a solar thermal sensing member 310, a thermal couple 320, a solenoid 330, and a magnetic body 340. Here, the solar thermal sensing member 310 according to an embodiment of the present invention may include a cylindrical case 310 installed at a portion that is integrally rotated with the solar cell panel 100.

That is, the solar sensing unit 300 according to the embodiment of the present invention is formed in the solar panel 100 and the central portion having a cylindrical case having four sensing units 311 to 314 partially or selectively heated by solar heat. A first thermal couple 321 having both ends joined to two sensing

units

311 and 313 disposed on a surface orthogonal to the high rotational axis H in the cylindrical case 310, and the cylindrical case 310. 2) the second thermal couple 322 having both ends joined to the two sensing

units

312 and 314 disposed on a surface orthogonal to the azimuth rotation axis A, and to any one of the first thermal couple 321. The first solenoid 331, the second solenoid 332 formed by one of the conductors of the second thermal couple 322, and the first solenoid 331 formed corresponding to the two sensing unit ( Thermoelectric power is generated due to the temperature difference between 311 and 313, and a current is generated in the first thermal coupler 321. When flowing, the first magnetic body 341 and the second solenoid 332 contacting the first input switching unit 211A and the first connection switching unit 212A are formed to correspond to the temperature difference between the two sensing

units

312 and 314. When a thermoelectric power is generated and a current flows in the second thermal coupler 322, the second magnetic body 342 contacts the second input switching unit 221A and the second connection switching unit 222A.

The cylindrical case 310 is installed at a portion in which the case normal is integrally rotated with the solar cell panel 100 in a state in which the case normal is aligned in parallel with the panel normal Zp.

In the cylindrical case 310, four sensing units 311 to 314 having the same sensing area are disposed radially symmetric about the case normal, and are arranged at the same angle with respect to the case normal.

For convenience of description, the four sensing units 311 to 314 are first sensing unit 311, second sensing unit 312, and third sensing unit 313 in a clockwise direction from the left with respect to FIG. 4. , The fourth sensing unit 314, wherein the first sensing unit 311 and the third sensing unit 313 inside the cylindrical case 310 are symmetrical with each other on a plane orthogonal to the rotation axis H in the high direction. The second sensing unit 312 and the fourth sensing unit 314 in the cylindrical case 310 are disposed symmetrically with each other on a plane orthogonal to the azimuth rotation axis A. FIG.

The first sensing unit 311 and the third sensing unit 313 (and the second sensing unit 312 and the fourth sensing unit 314) are formed by joining both ends of a pair of conductive wires made of different metal materials. The thermal couple 320 is selectively connected.

The thermal couple 320 includes a first thermal couple 321, a second sensing unit 312, and a fourth sensing unit 314 that sense a temperature difference between the first sensing unit 311 and the third sensing unit 313. It comprises a second thermal couple 322 for detecting a temperature difference of the.

The first thermal coupler 321 has a first A lead having one end joined to the first sensing unit 311 inside the cylindrical case 310 and the other end joined to the third sensing unit 313 of the cylindrical case 310. 321A and the first A wire 321A are distinguished, one end of which is joined to the first sensing part 311 of the cylindrical case 310, the center of which forms the first solenoid 331, and the other end of the cylindrical case 310. And a first B wire 321B joined to the third sensing unit 313 of FIG.

Accordingly, when a temperature difference occurs between the first sensing unit 311 and the third sensing unit 313 according to the altitude of the sun, thermal power is generated in the first thermal couple 321 by the Seebeck effect. , The detailed description will be described later.

Meanwhile, the first thermal coupler 321 may have various types according to the type of metal. For example, the first A wire 321A and the first B wire 321B may be made of a constantan wire and a copper wire, respectively, and specifically, the constantan wire may be 50-60 wt% Cu and Ni 40-. It may be made of 50% by weight, and the copper conductor may be made of 100% by weight of Cu.

For another example, the first A wire 321A and the first B wire 321B may be made of chromel wire and aluminel wire, and specifically, the chromel wire is Ni 80-90 weight. % And Cr 10-20% by weight, the aluminel wire may be composed of 92-96% by weight of Ni, 1-3% by weight of Mn and 1-3% by weight of Al.

As another example, the first A wire 321A and the first B wire 321B may be made of a chromel lead and a constantan lead, respectively, and specifically, the chromel lead is made of Ni-80-90 wt% and Cr 10-20. Consisting of the weight percent, Constantan wire may be made of 50-60% by weight of Cu and 40-50% by weight of Ni.

As another example, the first A wire 321A and the first B wire 321B may be made of iron wire and constantan wire, and specifically, the iron wire is made of 100% by weight of Fe. Tantalum lead may be composed of 50-60 wt% Cu and 40-50 wt% Ni.

As another example, the first A wires 321A and the first B wires 321B may be formed of a nicrosil wire and a nisil wire, respectively. It is composed of the wt% and Cr 9-17% by weight and Si 1-3% by weight, the nisyl wire may be composed of 92-97% by weight of Ni and 2.9-6% by weight of Si and 0.1-1% by weight of Mg.

The second thermal coupler 322 has a second A lead having one end joined to the second sensing unit 312 inside the cylindrical case 310 and the other end joined to the fourth sensing unit 314 of the cylindrical case 310. 322A) and the second A wire 322A, one end of which is joined to the second sensing part 312 of the cylindrical case 310, the center of which forms the second solenoid 332, and the other end of the cylindrical case 310. And a second B lead 322B bonded to the fourth sensing part 314 of the second sensor.

Accordingly, when a temperature difference is generated between the second sensing unit 312 and the fourth sensing unit 314 according to the orientation of the sun, the thermoelectric power is generated in the second thermal couple 322 by the Seebeck effect.

On the other hand, the second thermal couple 322 has a variety of types depending on the type of the metal, the description of the second A wire and the second B wire constituting the second thermal couple (322) of the first thermal couple 321 described above Replace with the description of the 1A wire and the 1B wire.

Here, an amplifier (not shown) is connected to the first and second

thermal couples

321 and 322, respectively, to amplify the thermoelectric power generated by the temperature difference between the

junctions

311, 313, 312 and 314. That is, since the thermoelectric power generated in the first and second

thermal couples

321 and 322 has a small value, the thermoelectric power is amplified by the amplifier. At this time, the thermoelectric power is amplified several times through the amplifier. The

solenoids

331 and 332 can obtain the thermal power enough to exert the force of the magnet. Of course, the number of the amplifiers may be determined according to how much amplification of the thermal power generated in the first and second

thermal couples

321 and 322.

Next, a solar tracking method of a solar tracking device according to an embodiment of the present invention will be described with reference to FIGS. 5 to 7. 5 is a view showing a state in which the first sensing portion and the fourth sensing portion of the cylindrical case are in contact with the heating according to the altitude of the sun.

As illustrated in FIG. 5, when the first sensing unit 311 and the fourth sensing unit 314 of the cylindrical case 310 are heated contacts according to the altitude of the sun, the first sensing unit 311 and the third sensing unit 311 are heated. A temperature difference is generated between the sensing units 313 and the thermoelectric power is generated in the first thermal couple 321 by the Seebeck effect.

Specifically, 1A and 1A bonded to the first sensing unit 311 of the first thermal couple 321 and one end of the

first sensing wires

321A and 321B and the third sensing unit 313, respectively. When a temperature difference occurs between the other ends of the

first B wires

321A and 321B, as the electrons move from the heating contact 311 to the cooling contact 313, the cooling contact 313 is charged to '-' and the heating contact ( 311) is charged with '+' and has a Seebeck effect in which a potential difference is generated between both contacts. In this Seebeck effect, the thermoelectromotive force appearing between the two

contacts

311 and 313 is determined according to the type of metal and the temperature difference between the junctions, and the larger the temperature difference between the two contacts is, the larger the thermoelectric force is.

Therefore, since the thermoelectric power is generated due to the temperature difference between the heating contact 311 and the cooling contact 313 of the first thermal couple 321 and current flows in the closed circuit, the first solenoid 331 exhibits a strong magnet force. do. In addition, the first magnetic material 341 is magnetized by the force of the strong magnet of the first solenoid 331 and is attached to the terminal side of the first solenoid 331.

By pulling the first input line 211 of the old tool moving part 210 toward the first transmission line 212 of the old tool moving part 210 by the attraction force of the first solenoid 331 and the first magnetic body 341, Since the first input switching unit 211A of the first input line 211 and the first connection switching unit 212A of the first transmission line 212 are contacted and switched, the high tool driving unit 210 is the solar cell panel 100. The panel normal Zp of the solar cell panel 100 is operated to be substantially parallel to the sunlight L. As shown in FIG.

As a result, the high tool moving part 210 has a first sensing part disposed on a surface of the solar cell panel 100 that is substantially parallel to the solar beam L and perpendicular to the altitude rotation axis H. When the temperatures of the 311 and the third sensing unit 313 are the same, the rotational driving of the solar cell panel 100 based on the high-direction rotation axis H is stopped.

In addition, when the first sensing unit 311 and the fourth sensing unit 314 of the cylindrical case 310 is a heating contact according to the altitude of the sun, between the second sensing unit 312 and the fourth sensing unit 314. A temperature difference is generated in the second thermal coupler 322 due to the Seebeck effect.

That is, one end of the second and

second B wires

322A and 322B joined to the second sensing unit 312 of the second thermal couple 322 and the second A and 2B bonded to the fourth sensing unit 314. When a temperature difference occurs between the other ends of the

conductive wires

322A and 322B, as the electrons move from the heating point 314 to the cooling contact 312, the cooling contact 312 is charged with '-' and the heating contact 314 Is charged with '+' to generate a potential difference between both contacts.

Therefore, since the thermoelectric power is generated due to the temperature difference between the heating contact 314 and the cooling contact 312 of the second thermal couple 322 and a current flows in the closed circuit, the second solenoid 332 exhibits a strong magnet force. do. The second magnetic body 342 is magnetized by the force of the strong magnet of the second solenoid 332 and sticks to the terminal side of the second solenoid 332.

The second input line 221 is drawn by pulling the second input line 221 of the bearing driving unit toward the second transmission line 222 of the bearing driving unit by the attraction force of the second solenoid 332 and the second magnetic body 342. Since the second input switching unit (221A) and the second connection switching unit 222A of the second transfer line 222 is switched in contact with each other, the azimuth driving unit 320 is the panel normal (Zp) of the solar cell panel 100 The solar cell panel 100 is rotationally driven so as to be substantially parallel to the sunlight L. FIG.

As a result, the azimuth driver 220 includes a second sensing part disposed on a surface perpendicular to the azimuth rotation axis A because the panel normal line Zp of the solar cell panel 100 is substantially parallel to the sunlight L. As shown in FIG. When the temperatures of 312 and the fourth sensing unit 314 are the same, rotational driving of the solar cell panel 100 with respect to the azimuth rotation axis A is stopped. (See Fig. 4)

6 is a view showing a state in which the fourth sensing unit of the cylindrical case is a heating contact according to the altitude of the sun.

As shown in FIG. 6, when the fourth sensing unit 314 of the cylindrical case 310 becomes a heating contact according to the altitude of the sun, the temperature difference between the second sensing unit 312 and the fourth sensing unit 314. Is generated and the thermoelectric power is generated in the second thermal couple 322 by the Seebeck effect.

Therefore, since the thermoelectric power is generated due to the temperature difference between the heating contact 314 and the cooling contact 312 of the second thermal couple 322 and a current flows in the closed circuit, the second solenoid 332 exhibits a strong magnet force. do.

Therefore, the second input switching unit 221A of the second input line 221 and the second connection switching unit of the second transfer line 222 by the attraction force between the second solenoid 332 and the second magnetic body 342. Since the 222A contacts and switches, the azimuth driver 320 rotates the solar cell panel 100 such that the panel normal Zp of the solar cell panel 100 is substantially parallel to the solar light L.

7 is a diagram illustrating a state in which a temperature difference of the first to fourth sensing units of the cylindrical case does not occur according to the altitude of the sun.

As shown in FIG. 7, unless the temperature difference between the first to fourth sensing units 311 to 314 of the cylindrical case 310 does not occur according to the altitude of the sun, no thermoelectric power is generated.

Therefore, since no current flows in the closed circuit formed by the first and second

thermal couples

321 and 322, the first and

second solenoids

331 and 332 do not exert the force of the magnet.

As a result, since the

input lines

211 and 221 and the

transmission lines

212 and 222 of the high tool driving unit 310 and the azimuth driving unit 320 are not switched, the solar cell panel 100 is not driven to rotate. (See Fig. 4)

Another embodiment of the present invention will be described with reference to FIG. In the case of showing the same components as in the above-described embodiment, the same reference numerals are given, and description thereof is omitted. 8 is a view showing a part of the solar tracking device according to another embodiment of the present invention.

As shown in FIG. 8, the solar tracking device 10 according to another embodiment of the present invention includes a solar panel 100 and a rotation driving unit (not shown) for rotationally driving the solar panel 100. And, using the thermoelectric power generated by the temperature difference between the sun and the sun of the panel according to the altitude and orientation of the sun rotation drive unit 200 so that the panel normal of the solar panel 100 is parallel to the sunlight (L) It is configured to include a solar heat detection unit 500 to selectively drive.

As illustrated in FIGS. 4 and 8, the solar sensing unit 300 according to another exemplary embodiment of the present invention may include a first disc 511 formed and disposed at the center of the same surface as the solar cell panel 100 and the first disc 511. Disc assembly 510 including a second disc 512 disposed on the first disc 511 in parallel with the first disc 511 to selectively heat four sensing units of the first disc 511. ) And a first thermocouple having both ends joined to two sensing parts 311 ′ and 313 ′ disposed on a surface orthogonal to the high rotational axis H in the first disc 511 of the disc assembly 510. 321 and a second thermal couple where both ends are joined to two sensing portions 312 ', 314' disposed on a surface orthogonal to the azimuth rotation axis A in the second disc 512 of the disc assembly 510. 322, the first solenoid 331 formed by the conducting wire of any one of the first thermal couples 321, and the conducting wire of any one of the second thermal couple 322. The second solenoid 332 is formed to correspond to the first solenoid 331 and the thermoelectric power is generated by the temperature difference between the two sensing units 311 ′ and 313 ′ so that a current is generated in the first thermal couple 321. When flowing, the first magnetic body 341 and the second solenoid 332 contacting the first input switching unit 211A and the first connection switching unit 212A are formed to correspond to the thermal power generated by the temperature difference between the two sensing units. As such, when the current flows in the second thermal coupler 322, the second magnetic body 342 contacts the second input switching unit 221A and the second connection switching unit 222A.

The disc assembly 510 is installed at a portion in which the disc normal is integrally rotated with the solar cell panel 100 in a state in which the disc normal is aligned in parallel with the panel normal Zp.

The disc assembly 510 is arranged in parallel with the first disc 511 and the first disc 511 disposed on the same surface as the solar cell panel 100 and on the upper side of the first disc 511. The second disc 512, and the connector 513 for vertically connecting the center of the first disc 511 and the second disc 512.

Four sensing units 311 ′ through 314 ′ having the same sensing area are arranged radially symmetric about the disc normal, but are arranged at the same angle with respect to the disc normal.

The second disc 512 selectively forms four shadows on the four detectors 311 ′ through 314 ′ of the first disc 511 according to the sun's altitude and azimuth and thus detects the four discs of the first disc 511. The temperature difference between 311 'and 314' is generated.

For example, according to the altitude or the direction of the sun, the second disc 512 forms a shadow on the first detector 311 ′ of the first disc 511 to form a shadow. 311 ′) and a temperature difference between the third sensing unit 313 ′. When the temperature difference is generated, thermoelectric power is generated in the first thermal couple 321 and the second thermal couple 322 by the Seebeck effect.

Therefore, since the thermoelectric power is generated due to the temperature difference between the heating contact 313 'and the cooling contact 311' of the first thermal couple 321 and the second thermal couple 322, and a current flows in the closed circuit, the wire is closed. The first solenoid 331 and the second solenoid 332 is a strong magnetic force, the first magnetic body 341 and the second magnetic body 342 is magnetized so that the first solenoid 331 and the second solenoid ( 332) respectively stick to the terminal side.

The first input line 211 (or azimuth drive unit) of the old tool driving unit 210 by the attraction force between the first solenoid 331 and the first magnetic body 341 (or the second solenoid and the second magnetic body 342). By pulling the second input line 221 of the 220 to the first transmission line 212 (or the second transmission line 222 of the azimuth drive unit 220) of the old tool drive 210, the first input line First input switching unit 211A (or second input switching unit 221A of second input line 221) of 211 and first connection switching unit 212A of first transmission line 212 (or Since the second connection switching unit 222A of the second transmission line 222 is selectively contacted and switched, the high tool driving unit 210 (or azimuth driving unit 220) has a solar panel normal of the solar panel 100. Solar drive panel 100 can be driven to rotate until substantially parallel to.

As shown in FIG. 9, the rotation driving unit 200 includes a first gear part 200A fixed to the rear surface of the solar cell panel 100 and a second gear part meshed with the first gear part 200A. The first motor unit 200C may selectively include the first motor unit 200C for driving the first gear unit 200A.

Therefore, when the

input lines

211 and 221 and the

transmission lines

212 and 222 of the rotation driving unit 200 are switched, the first motor part 200C is driven so that the second gear part 200B and the first gear part 200A are driven. The solar panel 100 which is sequentially rotated and having the first gear part 200A fixed thereto may be driven according to the altitude or orientation of the sun. (See Fig. 4)

Next, a solar tracking parasol according to an embodiment of the present invention will be described with reference to FIG. 10. 10 is a view showing a solar tracking parasol according to an embodiment of the present invention.

As shown in FIG. 10, the solar tracking parasol 10 ″ according to the exemplary embodiment of the present invention includes a light shielding film 100 ′, a first rotation driving unit 200 ′, and a first solar heat sensing unit 300 ′. ) Is configured to include an upper support U, a second rotation driving unit 200 ″, and a lower support B provided with a second solar thermal sensing unit 300 ″.

The light shielding film 100 ′ may be various types of films that strike to cover the sun.

The first rotation driving unit 200 ′ is a high tool drive unit 210 ′ that drives the light blocking film 100 ′ to rotate about the high direction rotation axis H, and a light shielding film 100 ′ about the high direction rotation axis H. It comprises a bearing driving unit 220 'for driving the rotation.

The high tool moving part 210 ′ selectively rotates the high rotational axis H to rotate the light shielding film 100 ′ in the high direction, and the first input line and the first transmission line not shown to contact the high rotational axis H. The first transmission member 600 for driving the light-shielding film 100 'to rotate around the.

Here, the first transfer member 600 is a first connection member 610 connecting two points of the light shielding film 100 'which is symmetrically formed on a plane perpendicular to the high direction rotation axis H, and the high direction rotation axis H. The first chain 620 is fixed to both ends of the first connection member 610 while winding).

In addition, the azimuth driver 220 ′ selectively contacts the azimuth rotation axis A for rotating the light blocking film 100 ′ in the azimuth direction, and the second input line and the second transmission line (not shown) to selectively rotate the azimuth rotation shaft ( And a second transfer member 700 which rotates the light blocking film 100 'about A).

Here, the second transfer member 700 is a second connecting member 710 connecting two points of the light shielding film 100 'which is symmetrically formed on a plane perpendicular to the azimuth rotation axis A, and the high rotation axis H. ) And a second chain 720 fixed at both ends at two points of the second connection member 720 while winding.

The light blocking film 100 ′ and the first rotation driving unit 200 ′ are connected to the upper column U. The upper column U may be disposed at the center of the light shielding film 100 ′ to guide the first solar sensing unit 300 ′ having a cylindrical case 310 for sensing solar heat and to adjust the angle of the cylindrical case 310. A hemisphere housing 800.

The first solar thermal sensing unit 300 ′ having the cylindrical case 310 has the same structure as the solar thermal sensing unit illustrated in FIG. 4. That is, the first solar heat detection unit 300 'is disposed at the center of the light shielding film 100' and has a cylindrical case 310 having four sensing parts 311 to 314 selectively heated by solar heat, and a cylindrical case ( First thermocouple 321 having both ends joined to two sensing

parts

311 and 313 disposed on a surface orthogonal to the rotational axis H in the direction 310, and an azimuth rotation axis A in the cylindrical case 310. The second thermal coupler 322 having both ends joined to the two sensing

units

312 and 314 disposed on a plane perpendicular to the cross-section), and the first solenoid 331 formed by any one of the first thermal coupler 321. ), The second solenoid 332 formed by the conducting wire of any one of the second thermal couple 322 and the first solenoid 331 corresponding to the thermoelectric power due to the temperature difference between the two sensing units (311,313) Is generated and current flows in the first thermal coupler 321, the first input switching unit 211A and the first connection switch. The first magnetic body 341 and the second solenoid 332 which contact the switching unit 212A are formed to correspond to the second solenoid 332 to generate thermal power due to the temperature difference between the two sensing

units

312 and 314. The second magnetic body 342 is configured to contact the second input switching unit 221A and the second connection switching unit 222A when current flows. (See Fig. 4)

Therefore, since the thermoelectric power is generated due to the temperature difference between the heating contact point and the cooling contact point of the first thermal couple 321 and the second thermal couple 322, and a current flows in the closed circuit, the first solenoid 331 and the second solenoid ( 332 is a strong magnet, so that the first magnetic material 341 and the second magnetic material 342 stick to the terminals of the first solenoid 331 and the second solenoid 342, respectively.

The first input line 211 (or the first tool line 211) of the old tool moving part 210 by the attraction force between the first solenoid 331 and the first magnetic body 341 (or the second solenoid 332 and the second magnetic body 342). By pulling the second input line 221 of the azimuth drive unit 220 toward the first transfer line 212 (or the second transfer line 222 of the azimuth drive unit 220) of the old tool drive unit 210. The first input switching unit 211A of the first input line 211 (or the second input switching unit 221A of the second input line 221) and the first connection switching unit 212A of the first transmission line 212. (Or the second connection switching unit 222A of the second transmission line 222) is selectively contacted and switched, so that the high tool driving unit 210 (or the azimuth driving unit 220) has a normal line of the light shielding film 100 '. The light blocking film 100 'can be driven to rotate until it is substantially parallel to the light beam.

The second rotation driving unit 200 ″ drives the lower column B around the east-west rotation axis 211 ″ so that the normal line of the light shielding film 100 ′ is substantially parallel to the sun. (210 '').

And, it is connected to the lower column (B) coupled to the lower portion of the hemisphere housing 800, the lower column (U) is provided with a second solar heat detection unit (300 ″). The second solar thermal detection unit 200 ″ includes a thermal couple 320 having both ends joined to two sensing units S1 and S2 disposed in the east-west direction on the shadow surface S formed by the light shielding film. , The solenoid 330 formed by any one of the thermal couplers 320 and the solenoid 330 are formed to correspond to the solenoid 330 to generate thermal power due to the temperature difference between the two sensing units S1 and S2. When the current flows through the 320, a magnetic material 340 is formed to contact the input line and the transfer line, which are not shown. (See Fig. 3)

Therefore, when the sun's altitude is close to 0 ° (or close to 180 °), such as at sunrise (or sunset), the cylindrical case 310 of the first solar heat detection unit 300 'can detect the solar heat. Difficult to detect the solar heat, even if the normal of the light shielding film and the parallel to the sunlight, since the change in the shadow position is increased according to the altitude of the sun is lowered, the second solar drive unit 300 '' to detect the solar heat and the second rotary drive unit By adjusting the angle of the lower column (U) through (200 '') to maintain the position of the shadow generated by the light shielding film (100 ') constant.

That is, when the first solar drive unit 300 ′ is difficult to detect the position of the sun and the first rotation drive unit 200 ′ is difficult to rotate, the second solar heat detection unit 300 ″ By sensing the position of the sun it is possible to drive the east-west drive unit 210 '' of the second rotary drive unit 200 ''.

As described above, the solar tracking device according to the embodiment of the present invention is driven to rotate so that the panel normal of the object is parallel to the sunlight by using thermoelectric power generated by the temperature difference of the object panel according to the altitude and orientation of the sun. It can be seen that the basic technical idea is to increase the utilization efficiency of sunlight through the solar sensing unit that selectively drives the unit. Accordingly, of course, many other modifications are possible to those of ordinary skill in the art within the scope of the basic technical idea of the present invention.

The solar tracking device and method according to an embodiment of the present invention has the effect of providing a solar tracking device and method that can increase the utilization efficiency of sunlight by tracking the position of the sun. In addition, by accurately detecting the position of the sun to be able to control the rotary drive unit for driving the tracking device rotation. It also allows the sun to be tracked while simplifying the structure for small power plants.

Claims

A rotation driving unit for rotating the object having the panel;

A solar heat sensing unit for selectively driving the rotational driving unit such that the panel normal of the object is parallel to the sunlight by using thermoelectric power generated by the temperature difference between the sun and the sun of the panel according to the altitude and orientation of the sun;

Including,

The rotary drive unit includes a high tool drive for rotating the object in the altitude direction, and an azimuth drive for rotating the object in the azimuth direction,

The high tool moving part comprises a first input line having an altitude rotation axis for driving the object in the altitude direction, one end of which is fixed and a first input switching part at the other end, and the first input switching part by the solar sensing unit. A first transmission line having a first connection switching unit selectively contacting and rotating the object about an axis of rotation in the high direction,

The azimuth driver includes an azimuth rotation axis for rotating the object in an azimuth direction, a second input line having one end fixed thereto and a second input switching part at the other end thereof, and the second input switching part selectively selected by the solar thermal sensing unit. And a second transmission line having a second connection switching unit which is brought into contact with and rotates the object about the azimuth rotation axis.
The method of claim 1,

The object is a solar tracking device comprising a solar panel.
The method of claim 2,

The solar cell detection unit is formed in the central portion of the solar panel, the cylindrical case having four sensing units that are selectively heated by the solar heat therein; and the inside of the cylindrical case symmetrically formed on the plane orthogonal to the high-direction rotation axis A first thermal couple having both ends joined to two sensing units; and a second thermal couple joined to two sensing units inside the cylindrical case symmetrically formed on a plane perpendicular to the azimuth rotation axis; and A first solenoid formed by one of the first thermal couples, a second solenoid formed by one of the second thermal couples, and a first solenoid formed corresponding to the first solenoid. When the current flows in the first thermal couple by the thermoelectric power generated by the temperature difference between the two sensing units of the first input switching unit and the first A second input switching unit when a current flows in the second thermal couple with a first magnetic body contacting the binding switching unit and a thermoelectric power generated by a temperature difference between the two sensing units of the second thermal couple, corresponding to the second solenoid; And a second magnetic body for contacting the second connection switching unit.
The method of claim 2,

The solar sensing unit includes a first disc having four sensing units disposed at the center of the same surface as the solar panel, and four sensing units of the first disc being disposed in parallel with the first disc on an upper side of the first disc. A disc assembly including a second disc to be selectively heated; and a first thermocouple having both ends joined to two sensing portions of the first disc, which are symmetrically formed on a plane orthogonal to the high-direction rotation axis; and A second thermal couple having both ends joined to two sensing portions of the first disc symmetrically formed on a plane orthogonal to an azimuth rotation axis; and a first solenoid formed by any one of the first thermal couple conductors; And a second solenoid formed by one of the conductors of the second thermal couple; and a thermoelectric power formed corresponding to the first solenoid and generated by a temperature difference between the two sensing units. A first magnetic body contacting the first input switching unit and the first connection switching unit when current flows in the first thermal couple; and the second thermoelectric power formed by a temperature difference between the two sensing units formed in correspondence with the second solenoid. And a second magnetic body contacting the second input switching unit and the second connection switching unit when a current flows through the thermal couple.
The method of claim 1,

The object comprises a parasol,

The parasol is a light shielding film; And,

A first rotary drive unit including a high tool drive unit for rotating the light shielding film in a high altitude direction and an azimuth driving unit for rotating the light shielding film in an azimuth direction;

An upper column provided with a first solar heat sensing unit for selectively driving the first rotational driving unit such that the panel normal of the light shielding film is parallel to the solar light by using thermoelectric power due to the temperature difference according to the altitude and orientation of the sun; ,

A second rotation driving unit including an east-west direction driving unit for rotating the light blocking film in the east-west direction when the altitude of the sun approaches 0 ° or 180 °;

When the altitude of the sun approaches 0 ° or 180 °, the second rotational drive unit is arranged such that the panel normal of the light shielding film is parallel to the solar ray by using the thermoelectric power by the temperature difference of the surface shadow surface corresponding to the light shielding film. A lower column optionally provided with a second solar thermal sensing unit;

Photovoltaic tracking device comprising a.
Detecting solar heat in the plurality of detectors:

Sensing a temperature difference between the plurality of sensing units;

Allowing a current to flow in the thermal couple by the thermoelectric power generated by the temperature difference;

A solenoid formed by a conductor of one of the thermal couples exerts a strong magnet force with a current flowing through the thermal couple;

Tracking sunlight by switching an input line and a transmission line of a rotational driving device with an attraction force between the solenoid and the magnetic body;

Photovoltaic tracking method comprising a.
Selecting an object having four sensing units selectively heated by solar heat;

A first thermal couple having both ends joined to two sensing units disposed on a surface orthogonal to a first rotational axis of the object among the four sensing units of the object, and the first of the four sensing units of the object Preparing a second thermal couple having both ends joined to two sensing units disposed on a surface orthogonal to the second rotating shaft;

By using thermoelectric power generated by the temperature difference between each of the first thermal couple and the second thermal couple, the first rotation axis and the second rotation axis are selectively driven so that the panel normal of the object is parallel with the sunlight. Tracking;

Photovoltaic tracking method comprising a.
A solar heat sensing member having a plurality of sensing parts selectively heated by solar heat;

At least one thermal couple having both ends joined to a plurality of sensing units of the solar sensing member;

At least one solenoid formed by one of the thermal couples;

A magnetic body formed corresponding to the solenoid and causing the input line and the transmission line of the rotary drive device to be switched when a current flowing in the thermal couple flows with the thermoelectric power generated by the temperature difference between the plurality of sensing units of the thermal couple;

Solar sensing unit comprising a.
The method of claim 8,

Solar sensing unit further comprises an amplifier for amplifying the current flowing in the thermal couple.