KR101364541B1 - Photovoltaic power generation apparatus - Google Patents

Abstract

The present invention for performing the above object is a support frame which is mounted with a plurality of solar cell modules on the top; A first support unit for distributing and supporting the load of the support frame from the lower side; A second support unit fastened to the lower side of the first support unit so that the first support unit can rotate in a vertical direction; Between the power transmission unit for transmitting the driving force to the second support unit to rotate the second support unit in the horizontal direction and to be able to rotate the first support unit in the vertical direction and between the second support unit and the power transmission unit. It is provided there is provided a solar cell apparatus comprising a stripping prevention portion for preventing the second support unit from being removed from the power transmission.
According to the photovoltaic device according to the present invention, first, a solid assembly between the second support unit and the power transmission unit is possible by the removal prevention unit, and second, the altitude control unit is provided to cope with changes in the altitude and azimuth angle of the sun. Accurate location tracking is possible, and third, there is an effect to maximize the light collection efficiency and power generation efficiency of the solar cell module according to the exact location tracking of the sun.

Description

[0001] The present invention relates to a photovoltaic power generation apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar power generation device, and more particularly, to a solar power generation device capable of changing the arrangement angle and arrangement direction of the solar cell module according to the altitude and direction of the sun.

Alternative energy is being developed as fossil fuels such as petroleum and coal are depleted. Especially, energy resources utilizing solar energy are being actively developed.

Power generation technologies that utilize solar energy to produce electricity include solar power generation that uses solar heat to drive a heat engine to generate electricity, and solar power that generates electricity from solar cells using solar light.

Here, a solar cell used for solar power generation includes a semiconductor compound element that converts sunlight directly into electricity.

As the solar cell used for the photovoltaic power generation, usually silicon and a composite material are usually used. Specifically, a solar cell uses a P-type semiconductor and an N-type semiconductor in combination, and utilizes a photoelectric effect to generate electricity by receiving sunlight.

Most of the solar cells are composed of large-area P-N junction diodes, and the electromotive force generated at the opposite ends of the P-N junction diode is connected to an external circuit.

The minimum unit of such a solar cell is referred to as a cell. Actually, the solar cell is rarely used as a cell.

This is because the voltage from one cell is very small, about 0.5 V, compared to several tens or hundreds of volts (V) of voltage required for practical use. This is why a plurality of unit solar cells can be connected in series or parallel It is connected and used.

In addition, when the solar cell is used outdoors, it is subjected to various harsh environments. Therefore, in order to protect a plurality of cells connected with a necessary unit capacity in a harsh environment, a solar cell module .

However, since the solar cell module must be used in a large amount in order to obtain a constant electric power, there is a restriction on the installation site and the restriction of the lower support structure due to the arrangement structure of the solar cell module is restricted, There is no problem in the case of outdoor facilities, but in case of installing in a multi-family house that occupies a large number of houses, it is difficult to individually install in a household.

In addition, since the supporting structure for supporting the conventional solar cell module is often joined by welding, the main frames and the supporting frames for supporting the solar cell modules, the supporting columns for supporting the main frame to the ground are respectively welded once, There is a difficulty in adjusting the arrangement state when welding is completed.

Particularly, in the case of a fixed support structure supporting a large number of solar cell modules in a large amount, the arrangement angle is fixed, and there is a limitation in adjusting the arrangement angle of the solar cell module according to the change of the sun height according to the season change. There is still a problem that the electricity production efficiency is lowered.

In Korea, when looking at the latitude (38 ㅀ) of the seasons, the southern mid-high altitude of the sun is about 52 ㅀ for the equinox or autumn, about 75.5 ㅀ for the lower summer, and 28.5 ㅀ for the winter solstice.

However, the conventional photovoltaic device is installed with a fixed angle toward the south facing the situation, so it is urgent to take measures against large variations in the electricity production by season.

In addition, as the eco-friendly energy business becomes more visible and solar power generation becomes more important, facilities for large-capacity photovoltaic power generation are required. However, There is a limit that requires a facility capable of supporting it.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a solar cell module capable of changing the arrangement angle and arrangement direction of the solar cell module in accordance with the change in altitude and direction of the sun, The present invention provides a photovoltaic power generation apparatus that can be installed.

According to an aspect of the present invention, there is provided a solar cell module comprising: a supporting frame on which a plurality of solar cell modules are mounted; A first support unit for distributing and supporting the load of the support frame from the lower side; A second support unit fastened to the lower side of the first support unit so that the first support unit can rotate in a vertical direction; Between the power transmission unit for transmitting the driving force to the second support unit to rotate the second support unit in the horizontal direction and to be able to rotate the first support unit in the vertical direction and between the second support unit and the power transmission unit. It is provided there is provided a solar cell apparatus comprising a stripping prevention portion for preventing the second support unit from being removed from the power transmission.

The first support unit includes a pair of vertical frames disposed in the vertical direction below the support frame; Each of the vertical frames may include a first horizontal frame and a second horizontal frame and a third horizontal frame connecting both ends of the vertical frames, respectively.

The power transmission unit includes a drive motor provided to rotate the second support unit in a horizontal direction, a case surrounding the drive motor, and a cam groove formed on an outer circumferential surface thereof, and fixed to the second support unit and having a lower end portion of the cam. It may include a lift arm is inserted into the groove and the upper end is rotatably coupled to the first horizontal frame to rotate the first support unit in the vertical direction.

The rotating shaft connected to the driving motor may include a stepped portion formed to pierce inwardly from an outer circumferential surface at an end portion of the rotating shaft that protrudes to the outside, and at least one side surface protruding from the top of the stepped portion may have a flat member.

The stripping prevention part is provided on the lower side of the second support unit, the coupling plate coupled to pass through the rotating shaft, the wedge member of the polygon fastened to the step of the rotating shaft protruding above the coupling plate, the coupling plate and the wedge member It may include a fastener for integrally fixing on the rotating shaft.

The second support unit may have a wedge member groove into which the wedge member is inserted.

The wedge member may include a first wedge piece disposed on one side in the horizontal direction about the stepped portion, and a second wedge piece disposed on the other side of the first wedge piece.

The first wedge piece is in contact with the upper side of the coupling plate is inserted into one direction of the stepped jaw, and the first fixed piece to be in contact with the cutting surface formed on one side of the flange member from the upper side of the first fixing piece And a contact piece, wherein the second wedge piece is in contact with the upper side of the coupling plate and inserted into the other direction of the step, and the cut surface formed on the other side of the flange member from the upper side of the second piece. It may include a second contact piece that is fixed to contact.

According to the photovoltaic device according to the present invention,

First, it is possible to assemble securely between the second support unit and the power transmission unit by the removal prevention unit,

Second, with the altitude control unit, accurate position tracking is possible in response to changes in the sun's altitude and azimuth,

Third, there is an effect to maximize the light collection efficiency and power generation efficiency of the solar cell module according to the exact position tracking of the sun.

1 is a rear perspective view of a solar cell apparatus according to an embodiment of the present invention.
FIG. 2 is a side view of the photovoltaic device shown in FIG. 1. FIG.
3 is a partially enlarged view showing a second support unit and a power transmission unit shown in FIG. 2;
Figure 4 is a side cross-sectional view showing a peeling prevention portion shown in FIG.
Fig. 5 is a perspective view showing the detachment prevention unit shown in Fig. 4.
Figure 6 is a perspective view showing a detachment prevention portion shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms and words used in the specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should appropriately define the concept of the term to describe its invention in the best way possible It should be construed in the meaning and concept consistent with the technical idea of the present invention.

1 is a rear perspective view of a photovoltaic device 100 according to an embodiment of the present invention, and FIG. 2 is a side view of the photovoltaic device 100 shown in FIG. 1.

1 and 2, the photovoltaic device 100 includes a support frame 110 mounted to change a coupling position of a plurality of solar cell modules 10 and a load of the support frame 110. The first support unit 120 provided below the support frame 110 and the second support unit 130 in a horizontal direction so as to distribute and support the first support unit 120 vertically. A power transmission unit 140 for transmitting a driving force to the second support unit 130 so as to be rotatable in a direction, and interposed between the second support unit 130 and the power transmission unit 140. 130 includes a removal prevention unit (see FIG. 3, 200) to prevent the power transmission unit 140 from being removed from the power transmission unit 140.

Under the power transmission unit 140, a main body 150 for fixing the photovoltaic device 100 to a predetermined height on the ground is disposed.

The photovoltaic device 100 of the embodiment of the present invention is characterized in that the solar cell modules 10 are arranged horizontally long and four vertically arranged in three by three in total so that a total of twelve solar cell modules 10 are provided, 3 kW, and the number of the solar cell modules 10 is related to the total solar cell power generation capacity, so that the arrangement and shape of the solar cell modules 10 can be changed accordingly.

The support frame 110 is assembled so as to have a vertical length corresponding to the size of the solar cell module 10, And is formed to have a length smaller than or equal to the width.

The support frame 110 is shaped like a beam having a square cross section and its size is determined according to the number of the solar cell modules 10 required according to the power generation capacity according to solar power generation, The size of the support frame 110 can be varied flexibly.

The solar cell module 10 has a plurality of patterns formed in a lattice structure, and is spaced laterally so as to form a gap between adjacent solar cell modules so that wind or snow may move.

In addition, the solar cell module 10 may be spaced apart from the other solar cell modules adjacent to each other in the zigzag direction so that wind or snow can move.

An lightning arrester 400 is provided at an upper edge portion of the support frame 110. The lightning arrester 400 is disposed at a position higher than an upper surface of the solar cell module 10 to prevent a lightning strike directly on the solar cell module 10.

In this case, the lightning arrester 400 has been described as an example provided in the upper edge portion of the support frame 110, the support frame 110 in a place where the solar cell module 10 is laid flat in the horizontal direction. The lightning arrester 400 may be installed at each corner portion of the c) to prevent the solar cell module 10 from being damaged from lightning.

The first support unit 120 provided on the bottom of the support frame 110 has a pair of vertical frames 121 and 121 'provided to be spaced apart from each other in a vertical direction, and the vertical frames 121 and 121. First horizontal frame 122 connecting the central portion of the '), and the second horizontal frame 123 and the third horizontal frame 124 connecting both ends of the vertical frames (121, 121'), respectively It includes.

The vertical frames 121 and 121 ′ are arranged side by side to be spaced apart from each other in a hollow rectangular beam shape, and the snow pressure accumulated by the load and the wind of the support frame 110 and the snow cell module 10 stacked on the upper surface of the solar cell module 10. Since the load must also be supported, it is made of a material with a relatively large cross-sectional area and strong rigidity.

The first horizontal frame 122 is provided to connect the centers between the vertical frames 121 and 121 ', and the first horizontal frame 122 is also manufactured under consideration of various stresses as a part receiving a large load. do.

The second horizontal frame 123 and the third horizontal frame 124 are provided to connect one end and the other end of the vertical frames 121 and 121 ′, respectively, and the vertical frames 121 and 121. ') And the first horizontal frame 122 has a smaller load than the cross-sectional area can be formed as a square beam.

The second support unit 130 is provided below the first support unit 120 to couple the first support unit 120 to rotate in the vertical direction.

The second support unit 130 is a hinge coupling frame 131 which is hinged to the bottom of the first horizontal frame 122, the upper surface of the hinge coupling frame 131 and the first horizontal frame 122 Interposed on the bottom surface is formed of a hinge coupling structure, and includes a plurality of fastening members 132 to distribute and support the load of the first support unit 120.

The hinge coupling frame 131 generally supports the support frame 110 and the first support unit 120 so that a maximum load is applied to the hinge coupling frame 131, and the cross-sectional area of the hinge coupling frame 131 is 120. It is relatively large compared to).

The support frame 110 to which the solar cell module 10 is coupled is disposed to be inclined at a predetermined inclination angle with respect to the ground.

The first support unit 120 is provided to rotate relative to the hinge coupling frame 131 disposed below the first support unit 120 in a vertical direction.

The power transmission unit 140 is provided with a drive motor (M) on the lower side, the case 141 is provided on the drive motor (M) is formed on the outer circumferential surface formed with a cam groove 142, the case 141 ) And a plurality of gears (not shown) disposed inside and rotated by the driving motor (M), the lower end is interposed in the cam groove 142, the vertical direction on the second support unit 130 A lift arm 143 reciprocating with the upper and upper ends of the lift arm 143 and connected to the first support unit 120 to vertically reciprocate the lift arm 143 to the first support unit ( It includes a height control unit 300 to deliver to 120.

The cam groove 142 is formed along the outer circumferential surface of the case 141, and is formed as a closed curve to form a height difference so that the height of the lift arm 143 can be changed.

Here, the rotation for adjusting the altitude angle of the support frame 110 and the first support unit 120 is made with the vertical reciprocation of the lift arm 143 according to the rotation of the second support unit 130. However, when rotating in the horizontal direction, the support frame 110, the first support unit 120, the second support unit 130 and the lift arm 143 is made to rotate in the horizontal direction at the same time.

At this time, the main body portion 150 provided on the lower side of the case 141 including the case 141 is fixed to the ground to perform a relative rotation movement in the horizontal direction with respect to the case 141.

The altitude control unit 300 is rotated by the user manually to correct the difference in altitude according to the altitude of the sun for each season, for example, by applying a different driving force to the altitude control unit 300 automatically changes the altitude of the sun according to the season Of course, it can be finely corrected.

3 is a partially enlarged view illustrating the second support unit 130 and the power transmission unit 140 shown in FIG. 2.

Referring to FIG. 3, the removal prevention unit 200 is interposed between the second support unit 130 and the power transmission unit 140 so that the second support unit 130 is separated from the power transmission unit 140. Provides the ability to prevent removal.

The stripping prevention unit 200 is coupled to the upper end of the rotating shaft 146 connected to the drive motor (M), the second support unit 130 is coupled to the upper side of the stripping prevention unit 200, The second support unit 130 together with the anti-separation unit 200 is rotated in conjunction with the rotational movement of the rotary shaft 146.

4 is a side cross-sectional view showing the stripping prevention part 200 shown in FIG. 3, FIG. 5 is a combined perspective view showing the stripping prevention part 200 shown in FIG. 4, and FIG. 6 is a stripping prevention part 200 shown in FIG. 5. Combined perspective view showing.

4 to 6, the rotation shaft 146 includes a step 147 formed such that an end outer circumferential surface thereof is inwardly piped, and a flange member 148 protruding outward of the step 147.

In addition, the removal prevention unit 200 is coupled to the end of the rotation shaft 146 and the coupling plate 210 is inserted into the rotary shaft 146, the coupling plate 210, the wedge member 220 and the The fastener 240 is inserted from the top of the wedge member 220 to be rotatable on the rotation shaft 146 at the same time as the coupling plate 210.

The step 147 is smaller in diameter than the rotation shaft 146, and the flange member 148 is formed to protrude upward and outward from the step 147. Accordingly, the step 147 is disposed below the flange member 148 on the rotation shaft 146, and is disposed above the portion where the coupling plate 210 is coupled.

The flange member 148 has an elliptical or oblong shape and a cut surface 149 is formed at one side thereof. The cut surface 149 has a function of preventing slipping when the wedge member 220 is fastened and rotated, and the shape of the cut surface 149 is not limited to a planar shape.

At this time, the coupling plate 210 is inserted into the rotation shaft 146, and the wedge member 220 is fastened to the step 147 while fixing the coupling plate 210 on the upper side of the coupling plate 210. The fastener penetrates the wedge member 220 and the coupling plate 210 at the same time and is fixed to an end of the rotation shaft 146. Then, the coupling plate 210 and the wedge member 220 on the rotary shaft 146 can be rotated at the same time, even if the situation in which the fastener is spaced apart by the vibration is the coupling plate 210 is the rotary shaft 146 Can be prevented from being removed.

The coupling plate 210 is formed in a disk shape having a predetermined thickness and a plane is formed in the normal direction of the coupling plate 210 on one side. The lift arm 143 is fastened to the plane to reciprocate in the vertical direction.

The second support unit 130 is coupled to the upper side of the coupling plate 210, and the wedge member may be inserted into the center of the bottom surface of the second support unit 130 by the height of the wedge member 220. Grooves 135 are formed. Therefore, since the wedge member 220 inserted into the wedge member groove 135 is limited to be spaced laterally, the wedge member 220 is removed on the rotating shaft 146 together with the coupling plate 210 even when the fastener is partially removed. Can be prevented.

The wedge member 220 is a first wedge piece 221 disposed on one side in the horizontal direction about the rotation axis 146 and a second wedge piece disposed on the other side of the first wedge piece 221 ( 231).

The first wedge piece 221 and the second wedge piece 231 is a structure that is engaged on the step 147 to form a square when combined. Of course, the shape may take a structure of various shapes such as polygons.

In this case, the first wedge piece 221 is connected to the first fixing piece 222 fastened in one direction of the step 147 and one side of the flange member 148 above the first fixing piece 222. And a first contact piece 223 fixed to contact the cut surface 149 formed therein, and the second wedge piece 231 is connected to the second fixing piece 232 fastened in the other direction of the step 147. And a second contact piece 233 fixed to contact the cut surface formed on the other side of the flange member 148 on the second fixing piece 232.

Of course, each of the fixing piece and the contact piece may be manufactured in one piece. The manufacturing of each of the fixing piece and the contact piece in a separate body is easy to manufacture and its purpose is to increase productivity.

A portion of the first fixing piece 222 and the second fixing piece 232 facing each other is formed with a semi-circular groove corresponding to the diameter of the step 147, the upper side of the coupling plate 210 Tightly tightened.

Wherein the first contact piece 223 and the second contact piece 233 is opposed to the contact surface 224 of the planar shape corresponding to the shape of the cut surface 149 of the flange member 148, respectively, the rotating shaft It provides a function of transmitting the rotational force of the (146) to each of the contact pieces (223, 233).

Of course, the bottom surface of the coupling plate 210 and the second support unit 130 is rotated in a coupled state with each other but the wedge member 220 is inserted into the wedge member groove 135 can be made more robust coupling have.

Hereinafter, the operation and effect of the photovoltaic device 100 according to the present invention will be described in detail with reference to the drawings. Hereinafter, the same reference numerals as those used in the following description denote the same elements.

The second support unit 130 rotates on the power transmission unit 140 to rotate the support frame 110 in the vertical and horizontal directions.

At this time, the second support unit 130 is rotated in combination with the rotation shaft 146 on the power transmission unit 140, the second support unit 130 coupled with the rotation shaft 146 is the rotation shaft When removed from the (146) has a structure that is difficult to avoid fatal damage to the entire structure disposed on the upper side of the second support unit 130.

Therefore, the present invention is characterized by providing a rigid coupling structure between the power transmission unit 140 and the second support unit 130 through the removal prevention unit 200.

First, the wedge member 220 is coupled to the step 147 of the rotation shaft 146 protruding upward from the coupling plate 210 and the coupling plate 210 is coupled to the rotation shaft 146. The coupling plate 210 and the wedge member 220 are simultaneously coupled to the rotatable shaft 146 by the fastener 240.

The wedge member 220 has a pair of wedge pieces are fastened at both sides of the rotation shaft 146 and a part of the wedge member 147 is fixed to be inserted into the fixing step is easy to assemble.

The wedge member 220 fastened to the upper side of the coupling plate 210 has a quadrangular shape, so that the lower side of the second support unit 130 coupled to the upper side of the coupling plate 210 is lower. The wedge member groove 135 corresponding to the shape of the wedge member 220 should be formed.

Then, the wedge member 220 is inserted into the wedge member groove 135 on the bottom surface of the second support unit 130, and the bottom surface of the second support unit 130 is coupled to the coupling plate 210. .

Therefore, even if the fastener 240 is spaced apart from or removed from the wedge member 220, the wedge member 220 is prevented from being separated from the wedge member groove 135, so that the fastening 240 is coupled with the rotation shaft 146. have.

This increases safety of the coupling between the power transmission unit 140 and the second support unit 130 through the removal prevention unit 200, and thus more safety of the components disposed above the second support unit 130. Strong support is expected.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: solar power generator 110: support frame
120: first support unit 130: second support unit
140: power transmission unit 150: main body
200: stripping prevention unit 300: altitude control unit
400: lightning rod
10: Solar module

Claims (8)

A support frame on which a plurality of solar cell modules are mounted;
A pair of vertical frames disposed in the vertical direction under the support frame, a first horizontal frame connecting the centers of the vertical frames, and a second horizontal frame and a second horizontal frame connecting both ends of the vertical frames, respectively; A first support unit including a horizontal frame and supporting the load of the support frame in a lower side;
A second support unit fastened to the lower side of the first support unit so that the first support unit can rotate in a vertical direction;
A drive motor provided to rotate the second support unit in a horizontal direction and to rotate the first support unit in a vertical direction and to rotate the second support unit in a horizontal direction; A case having a cam groove formed on an outer circumferential surface thereof, and fixed to the second support unit, a lower end is inserted into the cam groove, and an upper end is coupled to the first horizontal frame so as to be rotatable. A power train comprising a lift arm that rotates and
Interposed between the second support unit and the power transmission unit includes a removal prevention unit for preventing the second support unit from being removed from the power transmission unit,
The rotating shaft connected to the drive motor includes a stepped portion formed to squeeze inwardly from an outer circumferential surface at an end portion of the rotating shaft protruding from the outside, and a flange member having at least one side surface protruding from the top of the stepped portion in a plane,
The stripping prevention part is provided on the lower side of the second support unit, the coupling plate coupled to pass through the rotating shaft, the wedge member of the polygon fastened to the step of the rotating shaft protruding above the coupling plate, the coupling plate and the wedge member Photovoltaic device characterized in that it comprises a fastener for fixing integrally on the axis of rotation. delete delete delete delete The method according to claim 1,
The second support unit is a photovoltaic device, characterized in that the wedge member groove is formed in the bottom surface is inserted into the wedge member. The method of claim 6,
The wedge member
A photovoltaic device comprising a first wedge piece disposed on one side in a horizontal direction about the stepped portion, and a second wedge piece disposed on the other side of the first wedge piece. The method of claim 7,
The first wedge piece is in contact with the upper side of the coupling plate is inserted into one direction of the stepped jaw, and the first fixed piece to be in contact with the cutting surface formed on one side of the flange member from the upper side of the first fixing piece Including a contact piece,
The second wedge piece is fixed to the second fixing piece inserted into the other direction of the step in contact with the upper side of the coupling plate and the cutting surface formed on the other side of the flange member from the upper side of the second fixing piece Photovoltaic device comprising a contact piece.

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