KR102472654B1 - Movable type photovoltaic power generation device for farming - Google Patents

Abstract

Provided is a movable agricultural solar power generation device capable of securing sufficient incident light by adjusting the height of a solar panel, and adjusting a shaded area so as not to hinder the growth of crops. The movable agricultural solar power generation device according to the present invention includes: a support which is installed on the ground and has a lower support and an upper support connected in series to be extended in the vertical direction, and in which the lower support and the upper support are combined with a rotatable joint; an extension support which is slidably coupled to the upper support in the longitudinal direction; a vertical drive unit interposed between the upper support and the extension support and stretched in the longitudinal direction to move the extension support; and a solar panel attached to the upper part of the extension support to generate electricity by receiving sunlight.

Description

Movable type photovoltaic power generation device for farming}

The present invention relates to a movable farming-type solar power generation device, and relates to a movable farming-type solar power device capable of securing sufficient incident light by adjusting the height of a solar panel and adjusting a shaded area so as not to hinder the growth of crops. .

Solar energy is an eco-friendly renewable energy that uses sunlight. Solar energy is useful in everyday life because it can produce electricity just by installing a photovoltaic power generation device. In order to secure sufficient power with a solar power generation device, a large space with a large incident area of sunlight is required.

Since the agricultural land is wide open, it has good conditions for installing solar power generation devices. Therefore, attempts have been made to combine harvesting of crops and electricity production by applying photovoltaic power generation devices to existing farmland. For example, research is being conducted on distributing power generation area and cultivation area by appropriately adjusting the spacing of solar panels (eg, Korean Patent No. 10-2067959).

However, since the solar panel generates a shaded area around it, there is a problem in interfering with the growth of crops in adjacent farmland. These problems become more severe as the area of power generation increases. Even if space is secured at the bottom by arranging solar panels high, practical cultivation may be difficult due to shaded areas. In addition, since there are cases where more crops need to be increased depending on the situation, a technology capable of minimizing the installation space of the photovoltaic power generation device and increasing power generation efficiency is required.

Republic of Korea Patent Registration No. 10-2067959 (2020. 01. 20)

The technical problem of the present invention is to solve these problems, to provide a movable agricultural solar power generation device that can secure sufficient incident light by adjusting the height of the solar panel and adjust the shaded area so as not to hinder the growth of crops. is to do

The technical problem of the present invention is not limited to the above-mentioned problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The movable agricultural solar power generation device according to the present invention is installed on the ground, the lower support and the upper support are coupled in series to extend in the vertical direction, and the lower support and the upper support are coupled with a rotatable joint. An extension support coupled to the upper support in a longitudinal direction to be slidably movable, a vertical driving unit interposed between the upper support and the extension support and extending and contracting in the longitudinal direction to move the extension support, and coupled to the upper end of the extension support to generate sunlight It includes a solar panel that receives and generates electricity.

The photovoltaic panel is coupled to the extension support parallel to a first inclined plane inclined at a first angle with a horizontal plane, and the lower support and the upper support have a normal line of a second inclined plane inclined at a second angle with the horizontal plane as a rotation axis. can be combined with

Since the size of the second angle and the size of the first angle are formed differently, the first angle may change when the upper support is rotated.

When the lower support and the upper support are vertically aligned, both the first angle and the second angle form an acute angle, and the size of the second angle may be greater than the size of the first angle.

The joint rotates by forming a rotational surface parallel to the second inclined plane on the second inclined plane, and surrounds and supports a ring gear connected to the upper support and an outer circumferential surface of the ring gear on the second inclined plane and connected to the lower support. A rotation drive unit including a circular bearing and a pinion gear engaged with an inner circumferential surface of the ring gear to drive the ring gear may be included.

The support has a cylindrical shape and the second oblique plane is formed in an ellipse, and an outer diameter of the circular bearing may be smaller than a minor axis of the ellipse.

Further comprising a control unit for controlling the vertical drive unit and the rotation drive unit, wherein the control unit rotates the upper support to reduce the torque acting on the joint when a load equal to or greater than a reference torque is generated on the joint.

The vertical drive unit may include an air spring made of an elastic body and having a length that expands or contracts as the compressive fluid is introduced or discharged therein.

According to the present invention, it is possible to sufficiently secure the amount of light incident on the solar panel by adjusting the height of the solar panel and also adjust the amount of light incident on the ground. Therefore, the power generation efficiency of the photovoltaic power generation device is increased, and increased power generation is possible with a small number of power generation devices. In addition, the present invention can simultaneously adjust the direction, angle, and rotation radius of the solar panel as well as the height of the solar panel, so that a sufficient amount of light incident on the solar panel can be secured, increasing the area of arable land when forming an agricultural solar power facility. can In addition, the shaded area formed by the solar panel can be moved by changing its location at any time, so that the growth of surrounding crops may not be substantially disturbed.

1 is a perspective view of a movable agricultural solar power generation device according to an embodiment of the present invention.
FIG. 2 is a side view illustrating a cut-away joint of the movable agricultural solar power generation device of FIG. 1 .
FIG. 3 is a perspective view illustrating a state in which a vertical driving unit of the movable agricultural solar power generation device of FIG. 1 is expanded and reconstructed.
FIG. 4 is an operation diagram illustrating a change in position of a solar panel by rotation of the movable agricultural solar power generation device of FIG. 1 .
5 and 6 are schematic diagrams showing a rotational operation of the movable agricultural solar power generation device of FIG. 1 .
FIG. 7 is a use state diagram illustrating the operation of the vertical driving unit of the movable agricultural solar power generation device of FIG. 1 .

Advantages and features of the present invention and methods for achieving them will become clear with reference to the detailed description of the following embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, but only the present embodiments make the disclosure of the present invention complete and the common knowledge in the art to which the present invention belongs. It is provided to fully inform the possessor of the scope of the invention, and the invention is defined only by the claims. Like reference numerals designate like elements throughout the specification.

Hereinafter, with reference to FIGS. 1 to 7 , a movable agricultural solar power generation device according to the present invention will be described in detail.

FIG. 1 is a perspective view of a movable agricultural solar power generation device according to an embodiment of the present invention, and FIG. 2 is a side view of a joint part of the movable agricultural solar power device of FIG. 1 cut away.

1 and 2, the movable agricultural solar power generation device 1 according to the present invention is installed on the ground, and the lower support 110 and the upper support 120 are coupled in series to extend in the vertical direction. , the support 100 in which the lower support 110 and the upper support 120 are coupled by a rotatable joint 200, and the extension support 130 coupled to the upper support 120 to be slidably movable in the longitudinal direction, The vertical drive unit 300 interposed between the upper support 120 and the extension support 130 and is stretched in the longitudinal direction to move the extension support 130, and is coupled to the upper end of the extension support 130 to receive sunlight and generate electricity. It includes a solar panel 400 to produce.

The support 100 is installed on the ground, extends in a direction perpendicular to the ground, and functions to mount the solar panel 400 at a position spaced apart from the ground. In this specification, the ground (see E in FIGS. 4 and 6) is exemplified as a horizontal plane, and is shown as a horizontal line in FIGS. 4 and 6. However, the ground is not limited to a horizontal surface, and refers to various places where the support 100 can be fixed, such as a flat land, an inclined surface, a roof and an outer wall of a building, and underwater. In addition, the meaning that the support 100 extends perpendicular to the ground means that it extends in a direction toward the top from the point where it is installed, and even when installed on an inclined surface, it means that it can extend in a direction perpendicular to a horizontal surface.

The support 100 may be formed as a bar extending long in a straight line and may have a cylindrical shape. The inside of the support 100 may be empty and the material may be metal. The support 100 may be formed as a metal bar. The support 100 may include a space within which mechanical elements can be placed, and the diameter and length may be appropriately adjusted within such limits. The support 100 may also be formed in the form of a polygonal bar or the like other than a cylindrical shape.

The support 100 has a structure divided into an upper support 120 and a lower support 110, and a joint 200 is positioned between the upper support 120 and the lower support 110. The lower support 110 is fixed to the ground, and the upper support 120 has a structure that rotates with respect to the lower support 110 . At this time, the ends of the upper support 120 and the lower support 110 in contact with each other are cut at a certain inclination, and the joint 200 is inserted into the cut section. As shown in FIG. 2, the upper support 120 and the lower support 110 may have hollow structures, but the cut sections form surfaces in contact with each other, and the lower surface of the upper support 120 and the lower support It may be a structure in which the top surface of 110 is in surface contact. At this time, the upper support 120 and the lower support 110 may be cut at a second angle α2 forming an acute angle with the horizontal plane. The second angle α2 is an acute angle formed with the horizontal plane, and means an angle larger than the first angle α1 to be described later. That is, the upper support 120 and the lower support 110 are formed of surfaces contacting each other cut at a second angle α2. In particular, the second inclined plane 102 means a plane cut at a second angle α2 between the upper support 120 and the lower support 110 . The second inclined plane 102 may mean both the lower end surface of the upper support 120 and the upper surface of the lower support 110 . The second inclined plane 102 at the bottom of the upper support 120 and the second inclined plane 102 at the upper end of the lower support 110 are in surface contact with each other, and the upper support 120 can rotate.

The second inclined plane 102 may be formed, for example, by cutting the support 100 extending in a straight line in the middle. In such a way, the support 100 can be divided into an upper support 120 and a lower support 110. The second inclined surface 102 may be symmetrically formed on the cut surfaces of the upper support 120 and the lower support 110, respectively. After cutting, the cut surfaces of the upper support 120 and the lower support 110 (that is, the second inclined plane symmetrically formed on each) may be at least partially shielded by welding a plate material or the like. It is possible to properly form the joint 200 structure on each shielded cut surface. The specific structure and operation of the joint 200 will be described in more detail below.

The extension support 130 is coupled to the upper support 120 and can slide and adjust the height of the solar panel 400 . The upper end of the extension support 130 extends to protrude beyond the upper end of the upper support 120, so that the position of the solar panel 400 coupled to the upper end of the extension support 130 can be adjusted. As the extension support 130 moves, the solar panel 400 may have a variable distance from the second slope 102 or the ground. That is, the extension support 130 can slide along the longitudinal direction of the upper support 120 based on the second inclined plane 102 . The extension support 130 is formed in a column shape inserted inside the upper support 120, and may be completely inserted into the empty inner space of the upper support 120 or partially protruded upward. When extending the length of the extension support 130, the extension support 130 may protrude outward from the upper end of the upper support 120 and extend. However, the shape of the extension support 130 is not limited thereto, and any deformation is possible as long as the structure can extend in length from the end of the upper support 120. For example, the extension support 130 surrounds the outer circumferential surface of the upper support 120 and may be formed in a structure in which the upper support 120 is inserted into the extension support 130 . In this case, the inner surface of the extension support 130 is in contact with the outer surface of the upper support 120 and sliding movement is possible. In addition, the extension support 130 can be modified in various ways, such as a structure coupled to the top of the upper support 120 without overlapping with the upper support 120.

The extension support 130 has an inclined top surface so that the solar panel 400 can be fixed at an inclined angle. The extension support 130 may be formed as a first inclined plane 101 formed such that an upper end thereof forms a first angle α1 with the horizontal plane. In the present specification, the first angle α1 means an angle formed by an acute angle with the horizontal plane and a smaller value than the aforementioned second angle α2. That is, the first angle α1 and the second angle α2 are relative values, the first angle α1 and the second angle α2 are each an acute angle, and the first angle α1 is the second angle α2. It is possible to set an arbitrary angle within a smaller range. The extension support 130 may include an angle adjusting unit 131 that adjusts the angle of the first inclined surface 101 . The angle adjusting unit 131 may adjust the first angle α1 by rotating the first inclined plane 101 in the longitudinal direction of the extension support 130 . However, it is preferable that the angle adjusting unit 131 adjusts the first angle α1 within a range that is an acute angle and smaller than the second angle α2.

The solar panel 400 is installed on the first inclined plane 101 in parallel with the first angle α1 to receive sunlight and generate electricity. The solar panel 400 is disposed at a first angle α1 different from the second inclined plane 102 . Therefore, due to the difference in angle between the second inclined plane 102, which is the rotating plane, and the first inclined plane 101, which is the arrangement direction of the solar panel 400, the orientation direction, height, and rotation of the solar panel 400 with respect to the ground before and after rotation Angle difference can be created at the same time. The first angle α1 may be an angle formed between the first inclined plane 101 and the ground in a state in which the upper support 120 is arranged perpendicularly to the ground before the joint 200 rotates. In FIG. 2 , the ground is indicated by a horizontal line, and an angle formed between the solar panel 400 and the ground is indicated as a first angle α1. Since the first inclined plane 101 and the solar panel 400 are parallel to each other, the angle between the first inclined plane 101 and the horizontal plane is also the same as the illustrated first angle α1.

The first inclined plane 101 may be formed by processing the upper end of the extension support 130 into an inclined plane shape. When the upper portion is cut, similar to the second inclined plane 102, a plate material or the like may be welded to the cut surface for shielding. The solar panel 400 may be coupled in parallel with the first inclined plane 101 by disposing an appropriate coupling structure on the first inclined plane 101 . After bonding, the solar panel 400 is continuously maintained parallel to the first inclined plane 101 .

When the solar panel 400 is rotated and the angle is changed, the location of the shaded area (shadow of the solar panel) formed on the ground is also changed, so that the shaded area can be removed from the ground where crops are planted or the shaded area can be adjusted. Through this, it is possible to effectively solve the problem that the growth of crops is hindered due to sunlight being blocked by conventional photovoltaic facilities.

The joint 200 is disposed on the second oblique plane 102 described above. The joint 200 is composed of an axis joint and rotates the upper support 120 around a rotation axis F perpendicular to the second inclined plane 102 . The enlarged view of FIG. 2 shows a cross-sectional view taken along the second oblique plane 102 by cutting the joint 200 along A-A'. Hereinafter, the structure of the joint 200 will be described in more detail with reference to the side view and the enlarged cross-sectional view of FIG. 2 .

As shown in FIG. 2 , the joint 200 rotates by forming a rotation surface parallel to the second inclined plane 102 between the pair of second inclined planes 102 . The rotation plane means a virtual reference plane located between the second inclined plane at the lower end of the upper support 120 and the second inclined plane 102 at the upper end of the lower support 110 . The joint 200 is formed by driving the ring gear 210 coupled to the lower surface of the upper support 120, the circular bearing 220 coupled to the upper surface of the lower support 110, and the ring gear 210. It includes a rotation drive unit 230 for rotating the support 120 . In other words, the joint 200 includes a ring gear 210 connected to the upper support 120, a circular bearing 220 connected to the lower support 110 while surrounding and supporting the outer circumferential surface of the ring gear 210 on a rotating surface, and a ring A rotation drive unit 230 including a pinion gear 231 engaged with the inner circumferential surface of the gear 210 to drive the ring gear 210 is included. The axis of rotation F of the joint 200 may be placed on an imaginary line passing through the center of rotation of the ring gear 210 .

The ring gear 210 and the circular bearing 220 may be disposed on a surface where the lower end of the upper support 120 and the upper end of the lower support 110 come into contact with each other. Since the upper support 120 and the lower support 110 are divided by the second inclined plane 102, the plane where the lower end of the upper support 120 and the upper end of the lower support 110 come into contact is the same as the second inclined plane 102. The ring gear 210 protrudes from the lower end of the upper support 120 and passes through the second inclined plane 102 to be coupled to the upper end of the lower support 110 . The circular bearing 220 may be disposed on the top of the lower support 110 in a form surrounding the ring gear 210 .

The rotation drive unit 230 includes a pinion gear 231 that is engaged with the inner circumferential surface (a surface on which gear teeth are formed) of the ring gear 210 and rotates, and a motor 232 that provides driving force to the pinion gear 231 . The motor 232 may be fixed inside the lower support 110 using various fixing structures. Therefore, the ring gear 210 can be rotated by the pinion gear 231, and the upper support 120 connected to the ring gear 210 can also be rotated together.

When the support 100 has a cylindrical shape, the second inclined plane 102 is formed in an ellipse as shown, and the outer diameter of the circular bearing 220 may be formed smaller than the short axis of the ellipse (see section A-A' in FIG. 2). ). That is, a smooth rotation structure can be formed by placing the joint 200 formed on the second inclined plane 102 inside the rim of the second inclined plane 102 . Since the second inclined plane 102 is formed in a non-circular shape, the joint 200 can be disposed on the second inclined plane 102 in this way.

By this structure of the joint 200, the upper support 120 is rotated about the axis of rotation F perpendicular to the second inclined plane 102. As shown, in the present invention, the size of the second angle α2 at which the second inclined plane 102 is inclined with respect to the ground is the same as the magnitude of the first angle α1 at which the first inclined plane 101 is inclined with respect to the ground formed differently. Therefore, the arrangement of the solar panels 400 parallel to the first inclined plane 101 can be three-dimensionally changed when rotated by the angle difference between the first inclined plane 101 and the second inclined plane 102 .

The control unit 500 functions to control the rotary driving unit 230 . The control unit 500 may rotate the solar panel 400 by operating the rotary driving unit 230 according to the altitude of the sun, the weather, the load applied to the joint 200, and the like. That is, the control unit 500 can be used for adjusting the amount of light incident on the solar panel 400 or for adjusting the load applied to the joint 200 of the support 100. The control unit 500 may also control the operation of the vertical driving unit 300 to be described later.

FIG. 3 is a perspective view illustrating a state in which a vertical driving unit of the movable agricultural solar power generation device of FIG. 1 is expanded and reconstructed.

1 and 3, the vertical driving unit 300 is located between the upper support 120 and the extension support 130, and functions to adjust the height of the extension support 130. The vertical driving unit 300 functions to provide a driving force for adjusting the position of the extension support 130 relative to the upper support 120, and may be formed in various driving methods. For example, the vertical actuator 300 is formed of an air spring structure having elasticity, expands and contracts according to the inflow and outflow of fluid, and can push the extension support 130 up or down. At this time, the air spring is made of an elastic body and can also have a buffer action according to the vibration of the solar panel 400 through the vertical drive unit 300. That is, the vertical driving unit 300 not only adjusts the height of the extension support 130 by extending and contracting the length of the body, but also acts to buffer the vibration of the extension support 130. In addition, the vertical drive unit 300 may have a structure in which its length increases and decreases, such as an air spring, or may have a structure in which its length expands and contracts while its movement radius increases, such as a rack and pinion gear device. That is, the meaning that the vertical drive unit 300 is stretched can be understood not only by changing its length or volume, but also by adjusting the position of different parts by engaging with each other.

The vertical drive unit 300 is connected to the fluid pump 310 through a connecting pipe 320, and when the fluid supplied from the fluid pump 310 is injected, the vertical drive unit 300 expands and becomes longer, and accordingly, the extension support 130 and the sun The light panel 400 may be raised while being pushed up together. The fluid pump 310 is installed anywhere on the outside or inside of the support 100 to supply and recover fluid to the vertical drive unit 300 through the connection pipe 320 and adjust the volume of the vertical drive unit 300. . In addition, although the number of elastic bodies that form the vertical driving unit 300 and expand and contract with elasticity is shown as two, the number of elastic bodies can be modified as much as possible. For example, if the number of elastic bodies is increased, the stretchable length may be increased. However, the shape of the vertical driving unit 300 is not limited to the air spring, and can be modified into various structures such as a rack and pinion gear or cylinder capable of sliding and driving the extension support 130.

FIG. 4 is an operation diagram illustrating a change in position of a solar panel by rotation of the movable agricultural solar power generation device of FIG. 1 .

For example, as shown in (a) of FIG. 4, by driving the rotary driving unit 230 of the joint 200, the entire top support 120 is rotated around the axis of rotation F perpendicular to the second inclined plane 102. can make it Since the solar panel 400 is also coupled to the upper support 120, the solar panel 400 is also rotated. At this time, the arrangement state of the first inclined plane 101 having a different angle from the second inclined plane 102 is changed, and the arrangement state of the solar panel 400 is also changed correspondingly. The direction of rotation is exemplary and can also rotate in the opposite direction.

By rotation, for example, as shown in (b) of Figure 4, the top support 120 can be rotated and bent sideways. Accordingly, the upper end of the support 100 is lowered (obliquely), and the height of the solar panel 400 coupled to the upper end of the support 100 may also be lowered. In addition, since the alignment state of the first inclined plane 101 is changed while rotating around the second inclined plane 102, the angle formed by the solar panel 400 with respect to the ground after rotation may be arbitrarily changed. The changed angle α1′ after rotation is different from the first angle α1 formed by the first inclined plane 101 and the ground before rotation, and may be greater than the first angle α1.

The angle formed by the solar panel 400 with respect to the ground, the angle formed by the first inclined plane 101 with the ground, and the angle formed by the second inclined plane 102 with the ground can all be measured on a single plane perpendicularly intersecting with the ground. have. After rotation, the front surface of the solar panel 400 may change in three-dimensional direction, but the angle formed with the ground may be measured based on an intersection line intersecting the single plane. The angle X after rotation shown in (b) of FIG. 4 illustrates the angle after rotation determined in such a way.

This operation is possible because the first inclined plane 101 and the second inclined plane 102, which is a rotational plane, are formed to be inconsistent with each other. When the joint 110 rotates due to the difference in angle between the first inclined plane 101 and the second inclined plane 102, the height and angle of the solar panel 400 are simultaneously changed. Therefore, even if the incident light L is irradiated in different directions at each time from the sun whose altitude and direction change together, power can be produced by changing the height and angle of the solar panel 400 appropriately.

Preferably, the first angle formed by the first inclined plane 101 with the ground (α1 in FIG. 2) (as described above, it may be measured in a vertical state before the rotation of the joint) and the second inclined plane All of the second angles (α2 in FIG. 2) formed by 102 and the ground are acute angles, and the magnitude of the second angle α2 may be greater than that of the first angle α1. When the size of the second angle α2 is increased, the rotation range or radius of rotation of the upper support 120 is increased, so the movement range of the solar panel 400 can be increased in proportion to the size of the second angle α2. have.

Therefore, as in this embodiment, the size of the second angle α2 is larger than the first angle α1 to increase the movement range of the solar panel 400, and the angle formed by the solar panel 400 with the ground before and after rotation can also change together. Through this, power can be produced very effectively while continuously tracking the sun whose altitude and direction change only by rotation of the joint 110 .

5 and 6 are use state diagrams illustrating a rotational operation of the movable agricultural solar power generation device of FIG. 1 .

5 and 6, by rotating only the joint 200 of the photovoltaic device 1, the height, angle, and directing direction of the solar panel 400 can be simultaneously changed to the direction in which the sun A is located. can In addition, as shown in FIG. 5, when checking the rotation path of the solar panel 400 by drawing a line from the center of the joint 200 to the center of the solar panel 400, the solar panel 400 is the joint 200 ) rotates along the circumference of the base of the cone with the center as the vertex. The solar panel 400 rotates while maintaining a constant angle with the axis of rotation of the joint 200 . In other words, the solar panel 400 does not overlap with the axis of rotation of the joint 200 and may rotate while maintaining a constant distance around the axis of rotation.

This operation may be made automatically and may proceed, for example, through the control unit 500 that controls the rotation drive unit 230 of the joint 200. The controller 500 may be disposed inside or outside the support 100 and may be formed as a computer device capable of loading a control program such as a programmable logic controller.

The control unit 500 automatically operates the rotary drive unit 230 when the torque applied to the joint 200 exceeds a reference value in order to prevent damage due to overload applied to the joint 200 so as to move the upper support 120 vertically. It can be returned to its initial state. The movable agricultural solar power generation device 1 has a structure in which the lower support 110, the upper support 120, and the extension support 130 are sequentially extended, and when the extension support 130 is extended to the maximum, the axis length is very It becomes longer and can overload the joint 200, and can prevent overload of torque through the control unit 500. In addition, the control unit 500 may adjust the torque applied to the joint 200 by operating the vertical driving unit 300 to reduce the length of the extension support 130. That is, the controller 500 controls the operation of the rotary drive unit 230 and the vertical drive unit 300 when a torque greater than or equal to the reference value is applied to the joint 200 to keep the upper support 120 and the extension support 130 in a stable state. can be adjusted

That is, the movable agricultural solar power generation device 1 controls the rotary driving unit 230 to control the rotational speed of the upper support 120 so that the upper support 120 tracks the sun. (500). The rotational speed of the joint 200 can be matched to the circumnavigation of the sun (A), and through this, the altitude and direction can be changed together from east to west, and the moving sun (A) can be effectively tracked.

When the height of the solar panel 400 is changed, the angle to the ground is automatically changed, and the orientation direction is also changed by rotation. Looking at it (see Fig. 6 (a), (c)), it can be controlled to look at the ceiling by lying at a smaller angle with respect to the ground at the climax time (see Fig. 6 (b)). Such precise tracking is possible by adjusting only the rotational speed of the joint 110 formed on the support 100.

FIG. 7 is a use state diagram illustrating the operation of the vertical driving unit of the movable agricultural solar power generation device of FIG. 1 .

In addition, the present invention can continuously change the shaded area (B) by adjusting the distance between the solar panel 400 and the joint 200, as shown in FIG. For example, by controlling the fluid pump 310 of the vertical driving unit 300, the height of the solar panel 400 can be adjusted to increase and decrease repeatedly at regular intervals. Through this, it is possible to prevent the shaded area (B) from being fixed at one point, and it is possible to help the growth of the crops by smoothly reaching the sunlight to the crops on the ground.

The present invention is a movable agricultural solar power generation device 1 applied and used in farmland, and due to these functions, it can be installed without problems in locations adjacent to farmland, such as the boundary between a power generation area and a farming area. In addition, as described above, since the photovoltaic power generation efficiency of the present invention is greatly increased through an effective tracking operation, equivalent power can be produced in a smaller generation area (installation area of the photovoltaic device) compared to the prior art. Therefore, the cultivated area for growing crops can be further increased. The above-described changing operation of the shaded area B may be performed in parallel with the tracking operation, and may be continued even when the tracking is stopped depending on circumstances.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. you will be able to understand Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

1: Movable agricultural solar power generation device
100: support 101: first inclined plane
102: second inclined plane 110: lower support
120: upper support 130: extension support
131: angle adjusting unit 200: joint
210: ring gear 220: circular bearing
230: rotary drive unit 231: pinion gear
232: motor 300: vertical drive unit
310: fluid pump 320: connector
400: solar panel 500: control unit
A: sun B: shaded area
E: ground F: axis of rotation
L: incident light

Claims (8)

A support installed on the ground, a lower support and an upper support are coupled in series to extend in a vertical direction, and the lower support and the upper support are coupled by a rotatable joint;
an extension support that is slidably coupled to the upper support in the longitudinal direction;
a vertical driving unit interposed between the upper support and the extension support and extending and contracting in the longitudinal direction to move the extension support; and
Including a solar panel coupled to the upper end of the extension support in parallel with a first inclined plane formed inclined at a first angle with the horizontal plane to receive sunlight and produce electricity,
The lower support and the upper support are coupled to the normal line of the second inclined surface inclined at a second angle with the horizontal plane as a pivot axis,
The vertical driving unit moves the extension support to adjust the height of the solar panel from the ground. delete According to claim 1,
The size of the second angle and the size of the first angle are formed differently,
A movable agricultural solar power generation device in which the first angle is changed when the upper support is rotated. According to claim 3,
When the lower support and the upper support are vertically aligned,
The first angle and the second angle both form an acute angle, and the size of the second angle is greater than the size of the first angle. According to claim 1,
The joint rotates by forming a rotational surface parallel to the second inclined plane on the second inclined plane, and the ring gear connected to the upper support rod, and the outer circumferential surface of the ring gear on the second inclined plane is surrounded and supported and connected to the lower support rod. A movable agricultural solar power generation device comprising a circular bearing and a rotary drive unit including a pinion gear engaged with an inner circumferential surface of the ring gear to drive the ring gear. According to claim 5,
The support is cylindrical, the second oblique plane is formed in an ellipse, and the outer diameter of the circular bearing is smaller than the short axis of the ellipse. According to claim 5,
Further comprising a control unit for controlling the vertical drive unit and the rotation drive unit,
The control unit reduces the torque acting on the joint by rotating the upper end support when a load greater than the reference torque is generated on the joint. According to claim 1,
The vertical drive unit,
A movable agricultural solar power generation device comprising an air spring made of an elastic body and whose length expands or contracts as compressible fluid flows in or out of the inside.

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