KR20060074249A - Solar cell module including a solar tracking device - Google Patents

Abstract

The present invention relates to a solar cell module having a solar tracking device that detects the east-west and south-west directions of the sun with an optical sensor and accordingly rotates the solar cell module in the north-south and east-west directions. ; First and second optical sensors 20a and 20b attached to the outer frame 10 in the vertical and horizontal directions to detect sunlight in the east, west and north and south directions, respectively; A first comparing unit 30a for comparing the east light intensity signal and the west light intensity signal outputted from the first photosensor 20a; A second comparing unit 30b for comparing a south light intensity signal and a north light intensity signal outputted from the second photosensor 20b; A controller 40 for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the outputs of the first and second comparators 30a and 30b; An east / west rotation part 50 which receives the east-west rotation signal of the controller 40 and rotates the outer frame 10 to the east or the west; The solar cell module comprises a plurality of panels comprising a south / north rotating part 60 rotating south or north of the solar panel 12 installed inside the outer frame 10 in response to the north-south rotation signal of the controller. By rotating the panel to rotate in the north-south or east-west direction can be minimized the radius of rotation.

Solar cell, solar module, solar tracking, optical sensor, worm gear, worm

Description

Solar cell module including a solar tracking device             

1 is a state diagram of a solar cell capable of conventional solar tracking;

2 is a block diagram showing the configuration of a solar cell module having a solar tracking device according to the present invention;

3 is a perspective view showing an outer front surface of a solar cell module according to the present invention;

Figure 4 is a perspective view showing the outer back of the solar cell module according to the present invention,

Figure 5 is a schematic diagram showing a north-south rotation unit installed on the rear of the outer frame of the solar cell module according to the present invention,

Figure 6 (a) is a state closed by installing the solar cell module according to the present invention in the window installed for ventilation of the building,

6 (b) is a state in which the solar panel 12 rotates to face the sun by tracking the sun from the open window 70,

7 is a block diagram showing the configuration of another embodiment of a solar tracking device applied to a solar cell module according to the present invention;

8 is a state diagram in which the solar cell module according to the present invention is installed on the roof of a building.

♠ Explanation of the symbols for the main parts of the drawings ♠

10: outer frame 11: unit solar module

12: solar panel 20a, 20b: first and second optical sensor

30a, 30b: first and second comparison parts 40: control unit

50: east / west rotation part 60: south / north rotation part

51: motor 52: worm gear

53: worm 54: east / west rotation axis

61: motor 62: bevel gear part

63: vertical axis of rotation 64: worm gear

71a, 71b: first and second optical sensors 72a, 72b: first and second comparison parts

73: control unit 74: south / north rotation part

75: east / west rotation part

The present invention relates to a solar cell module having a solar tracking device, and more particularly, to a solar cell including a solar tracking device that senses the east-west and south-west directions of the sun with an optical sensor and thereby rotates the solar cell module in the north-south and east-west directions It relates to a battery module.

Solar cells are devices that convert the sun's light energy into electricity. Si (silicon) is mainly used as a material of a solar cell, and it has a diode structure which has a PN junction. In addition to the single crystal Si, there are also solar cells using Se (selenium) and CdS. To generate electricity from solar cells, light must enter the light-receiving surface. When light enters the light-receiving surface, electrons and hole pairs are generated by sunlight energy, and electrons and holes move, and current flows across n and p layers.

Therefore, in order to increase the power generation efficiency of the solar cell, the light receiving surface and the sun should be placed vertically so that the light receiving surface is always directed to the sun to receive the maximum amount of light. As a means for allowing the light receiving surface and the sun to lie vertically, a solar tracking device is used.

A conventional solar tracking device is shown in FIG. 1 in Korean Utility Model Registration No. 0329018, the configuration of which a plurality of solar cell unit modules 1 are focused in a square octagonal shape on the module assembly 2 to provide an approximately internal source. The solar sensors 4a, 4b, 4c, and 4d are formed at the periphery 3 of the module assembly 2 at an angle to the module assembly horizontal plane, preferably at an angle of about 45 degrees, to detect the amount of light detected from sunlight. After converting the voltage to a calculation unit and sending the value to the operation unit, the operation unit compares the magnitude of the voltage to the control unit, and the control unit is based on the result from the operation unit. The motor 8 is controlled to control the direction of the module assembly 2.

However, the conventional solar cell is a sensor for detecting the sun light to detect the direction of the sun and rotate the entire module assembly vertically or vertically or toward the sun according to the direction.

When manufacturing the module assembly in large size, there is a problem that the up and down and left and right moving devices that can rotate while bearing its own weight are excessively large, and the manufacturing cost and operating cost are excessively consumed. Since the whole rotates, the radius of rotation necessary for rotation must be secured to the left and right and up and down, thereby causing a problem that acts as a constraint of the installer.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a solar cell module having a solar tracking device capable of rotating the light receiving surface of the solar cell module in the east-west and north-south directions toward the sun. It is.

Another object of the present invention is to provide a solar cell module having a solar tracking device that separates the rotation radius of the solar cell module in the north-south direction and the east-west direction and minimizes each rotation radius.

Still another object of the present invention is to provide a solar cell module including a solar tracking device capable of miniaturizing a solar tracking device by minimizing rotational radius in the north-south and east-west directions of the solar cell module.

Solar cell module provided with a solar tracking device according to the present invention for achieving the above object is a rectangular outer frame; First and second optical sensors attached to the outer frame in the vertical and horizontal directions to detect sunlight in the east, west, and north and south directions, respectively; A first comparing unit comparing the east light intensity signal and the west light intensity signal outputted from the first light sensor; A second comparing unit comparing the south light intensity signal and the north light intensity signal outputted from the second light sensor; A controller for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the output of the first and second comparators; An east / west rotation unit which receives the east-west rotation signal of the control unit and rotates the outer frame east or west; Receives a north-south rotation signal of the control unit is composed of a south / north rotation unit for rotating the solar panel installed inside the outer frame to the south or north.

The east / west rotation unit includes a motor for forward and reverse rotation according to a control signal of the controller; A worm gear rotating according to the forward and reverse rotation of the motor; It consists of a worm rotating in accordance with the worm gear and fixed to the outer frame,

The north-south rotating unit includes a motor rotating in the forward and reverse directions according to a control signal of the controller; Bevel gear portion for transmitting the rotational force of the motor to the vertical axis of rotation; A vertical rotation shaft rotating under the rotational force of the motor from the bevel gear portion; A worm gear attached to the rotating shaft to transmit the rotational force of the vertical rotating shaft to the worm attached to the central axis of the solar cell panel; Characterized in that the worm gear to convert the rotational force of the worm gear to the rotational force of the solar cell panel.

Another embodiment of the solar cell module having a solar tracking device according to the present invention is attached to the frame of the window in the vertical and horizontal direction and the first and second optical sensors for sensing the sunlight in the east, west and north and south directions, respectively; A first comparing unit comparing the east light intensity signal and the west light intensity signal outputted from the first light sensor; A second comparing unit comparing the south light intensity signal and the north light intensity signal outputted from the second light sensor; A controller for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the output of the first and second comparators; An east / west rotation part which receives east-west rotation signal of the controller and rotates east or west; A hydraulic pump for discharging and stopping the hydraulic pressure in response to the north-south rotation signal of the controller, a hydraulic cylinder for expanding the hydraulic pressure of the hydraulic pump, and a hydraulic valve for opening / closing the hydraulic pressure of the hydraulic cylinder in response to the north-south rotation signal of the controller. And an oil storage unit for storing the hydraulic pressure discharged from the hydraulic valve and supplying the hydraulic pressure to the hydraulic pump. The oil storage unit includes a south / north rotary unit configured to rotate south or north in response to a north-south rotation signal of the controller.

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

2 is a block diagram showing the configuration of a solar cell module including a solar tracking device according to the present invention.

The solar tracking device applied to the solar cell module according to the present invention includes a rectangular outer frame 10; First and second optical sensors 20a and 20b attached to the outer frame 10 in the vertical and horizontal directions to detect sunlight in the east, west and north and south directions, respectively; A first comparing unit 30a for comparing the east light intensity signal and the west light intensity signal outputted from the first photosensor 20a; A second comparing unit 30b for comparing the south light intensity signal and the north light force signal output from the second light sensor 20b; A controller 40 for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the outputs of the first and second comparators 30a and 30b; An east / west rotation part 50 which receives the east-west rotation signal of the controller 40 and rotates the outer frame 10 to the east or the west; In response to the north-south rotation signal of the control unit is composed of a south / north rotation unit 60 for rotating the solar panel 12 installed in the interior of the outer frame 10 to the south or north.

3 is a perspective view showing an outer front surface of the solar cell module according to the present invention.

The solar cell module 100 according to the present invention is composed of an outer frame 10 having a longer rectangular shape in the vertical direction and having an outer edge thereof, and having a plurality of rows inside the outer frame 1. The solar cell panel 12 is installed long to the left and right. The solar cell panel 12 has a longitudinal central axis installed on the left and right sides thereof and is fitted into the pivot hole 15 formed on the inner side of the outer frame 10 to be rotated up and down.

The first optical sensor 20a is attached to the outer frame 10 forming the outline of the solar cell module in a vertical direction to detect sunlight in the east-west direction, and the second optical sensor 20b is horizontal to the outer frame 10. It is attached in the direction and detects sunlight in the north-south direction.

The east light intensity signal and the west light intensity signal are output from the first optical sensor 20a, and the signals are compared by the first comparison unit 30a, and the comparison result signal is input to the controller 40.

For example, when the east light intensity signal and the west light intensity signal are compared and the west light intensity is greater, and the comparison result signal “1” is input to the control unit 40, the control unit 40 is the east / west rotation unit 50. To control the solar cell module 100 to rotate to the west.

The second light sensor 20b detects the intensity of the sunlight in the north-south direction and outputs the south light intensity signal and the north light intensity signal to the second comparator 30b, and the second comparator 30b is the south light intensity signal. And the north light intensity signal is compared and the comparison result signal is output to the controller 40. The controller 40 receives the comparison result signal and rotates the south / north rotating unit 60.

Figure 4 is a perspective view showing the outer back of the solar cell module according to the present invention.

The solar cell panel 12, which is installed to the left and right inside the outer frame 10, has a longitudinal central axis 13 disposed on the left and right sides thereof and is fitted into the pivot hole 15 formed on the inner side of the outer frame 10. It can be rotated up and down.

East / west rotation unit 50 is installed on the rear of the lower horizontal frame of the solar cell module 100 according to the present invention as shown in FIG. Here, the rear surface of the lower horizontal frame is shown partially altered so that the east / west rotation part 50 can be seen better.

The east / west rotation unit 50 is a motor 51 rotating in the forward and reverse directions according to the control signal of the control unit 40, and the rotational force of the motor 51 to the east / west rotation shaft 54 of the solar cell module 100. The worm gear 52 for transmitting to the worm, the worm 53 for transmitting the rotational force of the worm gear 52 to the east / west rotation axis 54, and the solar cell module 100 in accordance with the rotation of the worm 53 It consists of an east / west rotation axis 54 which becomes the center of rotation of.

The first optical sensor 20a for detecting the position of the sun in the east-west direction is a tetrahedron case having a transparent material and an equilateral triangle on one side. As shown in FIG. 3, the bottom surface of the first optical sensor 20a is installed vertically with respect to the front surface of the solar cell module 100.

Light sensing modules having the same area are provided inside the left and right side surfaces of the first light sensor 20a, and when the sun comes to the central axis of the left and right sides, the electromotive force generated by the sunlight is the same.

However, when the sun moves from east to west, more sunlight is emitted on the left side (west side), so that the electromotive force generated by the light sensing module installed inside the left side is generated by the light sensing module installed inside the right side. Becomes bigger than

In this way, the electromotive force generated in the light sensing module installed inside the left and right sides is compared with the first comparator 30a, and the control unit 40 displays a signal (eg, “1”) indicating that more western light is input. Will print to The controller 40 reversely rotates the motor 51 according to the comparison result signal output from the comparator 30a, and accordingly rotates the worm gear 52 and the worm 53 to move the solar cell module 10. Rotation around the axis of rotation (54, 55). Therefore, since the east / west rotation shafts 54 and 55 may be installed at the center of the horizontal length smaller than the vertical length of the outer frame 10, the rotation radius may be smaller than the vertical length.

In addition, the north-south rotation unit 60, as shown in Figure 5, the motor 61 to rotate in the forward and reverse direction according to the control signal of the control unit 40, and transmits the rotational force of the motor 61 to the vertical rotation shaft 63 The bevel gear portion 62, the vertical rotation shaft 63 rotated by the rotational force of the motor 61 from the bevel gear portion 62, and the rotation shaft 63 are attached to the rotation force of the vertical rotation shaft 63. The worm gear 64 transmits to the worm 14 attached to the central axis 13 of the solar cell panel 12, and the worm converts the rotational force of the worm gear 64 into the rotational force of the solar cell panel 12. It consists of 14.

The control unit 40 receives the comparison result signal for the south light intensity signal and the north light intensity signal of the second optical sensor 20b from the second comparison unit 30b to cause the motor 61 to rotate forward or reverse.

For example, when the season is changed, the altitude of the sun increases or decreases, the electromotive force generated in the light sensing module installed inside the upper and lower upper surfaces of the second optical sensor 20b is different, and the difference in the electromotive force The second comparison unit 30b compares and outputs the corresponding signal (for example, “1” or “0”) to the controller 40.

When the altitude increases, the controller 40 determines that the north solar intensity is greater than the south solar intensity when the signal of “1” is input from the second comparator 30b and reversely rotates the motor 61. Let's do it. The reverse rotation of the motor 61 rotates the worm 14 from top to bottom by rotating the vertical rotation shaft 63 from right to left through the bevel gear part 62 to rotate the solar panel 12 from bottom to top. To face the elevated sun.

When the altitude is lowered, the control unit 40 inputs a signal of "0" from the second comparison unit 30b, and determines that the south solar intensity is greater than the north solar intensity, thereby rotating the motor 61 forward. Let's do it. The forward rotation of the motor 61 rotates the vertical rotation shaft 63 from left to right through the bevel gear portion 62, and rotates the worm 14 from top to bottom to rotate the solar cell panel 12 from top to bottom. Rotate to follow the sun at a lower altitude.

6 (a) shows a closed state by installing a solar cell module according to the present invention in a window 70 installed for ventilation of a building, and FIG. 6 (b) shows a sun in a window 70 opened by a hydraulic device. The state in which the solar panel 12 rotates to face the sun is shown.

7 is a block diagram showing the configuration of another embodiment of a solar cell module including a solar tracking device according to the present invention.

Another embodiment of a solar cell module having a solar tracking device according to the present invention is attached to the frame of the window 70 in the vertical and horizontal directions to detect the sunlight in the east, west and north and south directions, respectively; 71a, 71b; A first comparing unit 72a for comparing an east light intensity signal and a west light intensity signal output from the first photosensor 71a; A second comparing unit 72b for comparing a south light intensity signal and a north light intensity signal output from the second photosensor 71b; A control unit 73 for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the outputs of the first and second comparators 72a and 72b; An east / west rotation unit 75 which receives an east-west rotation signal of the control unit 73 and rotates east or west; It consists of a south / north rotation unit 74 to rotate to the south or north in response to the north-south rotation signal of the control unit.

Here, since the east / west rotation unit 75 may use the south / north rotation unit 60 of FIG. 2 as it is, only the symbols and names are displayed and the description is omitted.

The window 70 of the building controls the opening angle of the window 70 by controlling the south / north rotation part 74 which opens and closes the window 70 so as to adjust the opening angle so as to match the altitude of the sun. To control. When the window 70 is opened, the control unit 73 closes the hydraulic valve 74c so that the hydraulic pressure does not fall into the oil storage unit 74d, and drives the hydraulic pump 74a to supply hydraulic pressure to the hydraulic cylinder 74b. To supply. The hydraulic cylinder 74b supplied with the hydraulic pressure expands to open the window 70.

When the window is opened at an angle coinciding with the sun's altitude, the south light intensity signal output from the second light sensor 20b becomes greater than or equal to the north light intensity signal, so that the second comparison unit 30b has a "0" signal. Output to the control unit 40. The controller 40 receiving the “0” signal stops the operation of the hydraulic pump 71 so that the hydraulic pressure is not supplied to the hydraulic cylinder 72 to stop the expansion.

In the state where the window coincides with the altitude of the sun, when the western light intensity signal output from the first optical sensor 71a becomes greater than or equal to the east light intensity signal, the first comparison unit 72a controls the “1” signal. Output to (73). The controller 73 receiving the “1” signal from the first comparator 72a controls the rotation angle of the solar cell panel 12 by controlling the east / west rotation part 75.

8 shows a state in which the solar cell module according to the present invention is installed on the roof of a building.

The solar cell module 80 according to the present invention is opened and closed by a hydraulic device, and adjusts the opening angle of the Taeang battery module 80 according to the altitude of the sun as in the previous embodiment. Similarly, in the state in which the Tae-ang battery module 80 is opened according to the altitude of the sun, the solar panel 12 is rotated as shown in FIG. 6 (b) to track the sun in the east-west direction.

In this case, the operation is also different from the case where the solar cell module according to the present invention is installed in the window, and thus description thereof is omitted.

As described above, according to the present invention, the solar cell module can be rotated in the east-west and north-south direction toward the sun, and the solar cell module is composed of a plurality of panels to rotate the panel to rotate in the north-south direction or the east-west direction. It can be minimized.

In addition, although the technical concept of the shower equipped with an illumination light emitting diode of the present invention has been described based on the exemplary drawings, this is illustrative of the best embodiment of the present invention, it is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and imitations can be made without departing from the scope of the technical idea of the present invention.

Claims (4)

A rectangular outer frame 10; First and second optical sensors 20a and 20b attached to the outer frame 10 in the vertical and horizontal directions to detect sunlight in the east, west and north and south directions, respectively; A first comparing unit 30a for comparing the east light intensity signal and the west light intensity signal outputted from the first photosensor 20a; A second comparing unit 30b for comparing a south light intensity signal and a north light intensity signal outputted from the second photosensor 20b; A controller 40 for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the outputs of the first and second comparators 30a and 30b; An east / west rotation part 50 which receives the east-west rotation signal of the controller 40 and rotates the outer frame 10 to the east or the west; Receiving the north-south direction of the rotation signal of the control unit solar tracking device comprising a south / north rotating unit 60 for rotating the solar panel 12 installed in the outer frame 10 to the south or north Solar cell module having a. The motor of claim 1, wherein the east / west rotation unit (50) includes a motor (51) which rotates forward and backward according to a control signal of the control unit (40); A worm gear 52 which rotates according to the forward and reverse rotation of the motor 51; It consists of a worm 53 is rotated in accordance with the worm gear 52 and fixed to the outer frame 10, The north-south rotating unit 60 includes a motor 61 rotating in the forward and reverse directions according to a control signal of the control unit 40; Bevel gear portion 62 for transmitting the rotational force of the motor 61 to the vertical rotation shaft (63); A vertical rotation shaft 63 rotating under the rotational force of the motor 61 from the bevel gear portion 62; A worm gear 64 attached to the rotary shaft 63 to transmit the rotational force of the vertical rotary shaft 63 to the worm 14 attached to the central shaft 13 of the solar cell panel 12; Solar cell module having a solar tracking device, characterized in that consisting of a worm (14) for converting the rotational force of the worm gear 64 to the rotational force of the solar cell panel (12). The motor of claim 1, wherein the east / west rotation unit (50) includes a motor (51) which rotates forward and backward according to a control signal of the control unit (40); A worm gear 52 rotating according to the forward and reverse rotation of the motor 51; Solar cell module having a solar tracking device, characterized in that consisting of a worm (53) rotates along the worm gear (52) and is fixed to the outer frame (10). First and second optical sensors 71a and 71b attached to the frame of the window 70 in the vertical and horizontal directions to detect sunlight in the east, west and north and south directions, respectively; A first comparing unit 72a for comparing an east light intensity signal and a west light intensity signal output from the first photosensor 71a; A second comparing unit 72b for comparing a south light intensity signal and a north light intensity signal output from the second photosensor 71b; A control unit 73 for outputting an east-west direction signal and a north-south direction rotation signal, respectively, according to the outputs of the first and second comparators 72a and 72b; An east / west rotation unit 75 which receives an east-west rotation signal of the control unit 73 and rotates east or west; A hydraulic pump 74a for discharging and stopping hydraulic pressure in response to a north-south rotation signal of the controller, a hydraulic cylinder 74b for expanding and receiving hydraulic pressure of the hydraulic pump 74a, and a north-south rotation signal from the controller It consists of a hydraulic valve (74c) for opening and closing the hydraulic pressure of the hydraulic cylinder (74b), and an oil storage unit (74d) for storing the hydraulic pressure discharged from the hydraulic valve (74c) and supply the hydraulic pressure to the hydraulic pump (74a) Solar cell module having a solar tracking device, characterized in that consisting of the south / north rotation unit 74 to rotate south or north in response to the north-south rotation signal of the control unit.

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