KR20180118505A - Photovoltaic system - Google Patents

Abstract

The present invention relates to a solar power generation apparatus, and more particularly, to a solar power generation apparatus that follows the sun and is foldable. The solar power generation apparatus according to the present invention can reduce a region which a solar cell module occupies by folding and storing a plurality of solar cell modules with a bud shape, thereby preventing damage to the solar cell module during the night at which no power is generated.

Description

{PHOTOVOLTAIC SYSTEM}

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 that follows the sun and is expandable and collapsible.

Humans are developing new energy resources to replace fossil fuels due to depletion of fossil energy, and are interested in energy using solar energy, wind power, intellect, and wave power, which are pollution-free and infinite among alternative energy sources .

Among them, the photovoltaic power generation using the solar power is a semiconductor element and the control part is an electronic part. Therefore, there is no mechanical vibration and noise, and the lifetime of the solar battery is at least 20 years and it is easy to automate or automate the power generation system , And the cost of operation and maintenance can be minimized. Thus, various natural-friendly products using solar energy are emerging one after another.

In a photovoltaic power generation system, a solar cell module is formed by appropriately arranging modules in which a plurality of cells are integrated, and converts sunlight energy into electric energy.

Such a solar cell module is installed depending on a support structure. The structure generally includes a column supporting the solar cell module at a predetermined height from the ground, and a tracking system for adjusting the tilt of the solar cell module.

In other words, the solar cell module has the maximum efficiency when the direct sunlight of the sun enters at an angle of 90 degrees, but as the sun's position observed in each region changes according to the revolution and rotation of the earth, the azimuth moves to the east- , And the solar power generation efficiency is increased by repeating the movement to the north-south direction based on the 365-day altitude angle.

In this way, the photovoltaic generation system performs the rotation and tilt adjustment of the solar cell module according to the azimuth angle and elevation angle in order to increase efficiency of the solar power generation.

However, in the conventional solar power generation system, the protection method of the solar cell module against the viewpoint of the night when the solar power is not generated, the rainy season, the typhoon, etc. is not taken into consideration and the device is exposed to the risk of environmental damage, there is a problem.

In order to solve such a conventional problem, Korean Patent Laid-Open No. 10-2012-0067325 discloses a solar power generation apparatus.

The solar power generation device includes a solar cell panel and a motor assembly having a plurality of motors for generating a rotational force around each axis so that the solar cell panel is rotated in an arbitrary direction, And a slide solar photovoltaic panel, wherein the slide solar photovoltaic panel includes moving means for operating to slide on the rear surface of the fixed solar photovoltaic panel.

However, in the conventional photovoltaic device as described above, the slide solar panel is slid to the rear surface of the stationary solar panel to reduce the occupied area of the solar panel, thereby lowering the risk of breakage at the night when power is not generated , There is a risk that there is still a risk of breakage because the stationary photovoltaic panel and the slide photovoltaic panel are exposed.

KR 10-2012-0067325 A KR 10-1681755 B1

SUMMARY OF THE INVENTION It is an object of the present invention to provide a photovoltaic power generation apparatus capable of preventing breakage of a solar cell module during a night when electricity is not generated.

According to an aspect of the present invention, there is provided a solar photovoltaic device including a strut and a plurality of divided battery modules independently provided on the strut, And a driving unit for spreading the divided battery modules of the power generation unit apart from each other at a possible time and folding the divided battery modules close to each other at a time when power generation is impossible.

The driving unit includes a base frame rotatably installed on the upper part of the support, a first driving part rotating the base frame with respect to the support, a driving motor provided on the base frame, A center shaft having a worm wheel and a worm wheel attached to the center of the worm wheel and having a threaded portion formed on an outer circumferential surface of the worm wheel, a bearing member formed to surround the center shaft on the worm wheel and supported by the base frame, A plurality of pivotal brackets disposed on an outer side of the shaft and spaced from each other along the circumferential direction of the axis of the shaft and having one end of the divided battery module at an end thereof, A bushing reciprocating upward and downward along a central axis, one end coupled to the pivotal bracket, And a second driving unit including a link member rotatably coupled to the first driving unit.

The driving unit includes a base plate disposed on the upper portion of the support, a mounting groove spaced from the edge of the base plate along the circumferential direction of the base plate, A driving motor provided on the fixed case so that the rotating shaft is orthogonal to the first inclined surface, and a drive motor provided on one side for contacting the first inclined surface of the fixed case with a first inclined surface inclined with respect to the base plate, And a rotary case provided on the other side with the divided battery module mounted thereon, wherein the rotary case has two inclined surfaces and is coupled to a rotation axis of the driving motor and is rotated about a rotation axis of the driving motor in contact with the first inclined surface, When the rotary case is rotated to one side via the rotation plate, Side by side so as to expand and, by rotating the rotation side to the other case is characterized in that the fold in the direction to be adjacent to each other of the divided cell module.

The photovoltaic device according to the present invention can fold and store a plurality of solar cell modules in the shape of a bud so that the area occupied by the solar cell module can be reduced and thus the damage of the solar cell module can be prevented There is an advantage that it can be prevented.

1 is a perspective view of a photovoltaic device according to a first embodiment of the present invention;
FIG. 2 is an exploded perspective view of the photovoltaic device shown in FIG. 1. FIG.
3 is a partially enlarged perspective view of the photovoltaic device shown in Figs. 1 and 2. Fig.
FIG. 4 is a side view showing the operation of the photovoltaic device shown in FIGS. 1 to 3. FIG.
5 is a perspective view of a photovoltaic device according to a second embodiment of the present invention.
FIG. 6 is an exploded perspective view of the photovoltaic device shown in FIG. 5; FIG.
FIG. 7 is a perspective view showing the operation of the photovoltaic device shown in FIGS. 5 and 6. FIG.

Hereinafter, a photovoltaic apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show a photovoltaic device according to a first embodiment of the present invention. 1 to 4, the photovoltaic device according to the first embodiment of the present invention includes a strut 100 and a plurality of divided battery modules 500, which are independently provided on the upper portion of the strut 100, And a drive unit.

The column 100 is installed in a direction perpendicular to the paper surface, and a fixing flange for fixing the paper to the paper is formed at the lower end.

The driving unit is configured to spread the divided battery modules 500 of the power generation unit apart from each other at a time of power generation and to fold the divided battery modules 500 close to each other at a time when electricity can not be generated. The driving unit includes a base frame 200, 300, a second driving unit 400, and a reflection unit 600.

The base frame 200 is rotatably installed on an upper portion of the support 100 and includes a rotation piece 220 rotatably installed on the support 100 in a horizontal direction parallel to the ground, And a flat plate portion 210 provided at an end portion of the flat plate portion 210.

The first driving part 300 rotates the base frame 200 with respect to the support 100 and includes a fixed shaft 221 rotatably supporting the pivotal piece 220 on the support 100, And a connecting bracket 320 rotatably coupled to one end of the driving cylinder 310 at one side and the other side connected to the flat plate 210. The first driving unit 300 adjusts the inclination of the flat plate 210 to allow the solar cell module 500 to follow the sun.

The second driving unit 400 is coupled to the driving motor 410 installed on the base frame 200 and the worm 420 and the worm 420 installed on the shaft of the driving motor 410 A worm wheel 430 rotatable by rotation of the worm 420, a center shaft 440 coupled to the center of the worm wheel 430 and having a screw portion formed on the outer circumferential surface of the end portion and extending upward, A shaft receiving portion 450 which is formed at an upper portion of the shaft receiving portion 450 so as to surround a part of the outer circumferential surface of the central shaft 440 and is supported by the base frame 200, A plurality of pivotal brackets 460 mounted on the upper portion of the pivotal portion 450 and a plurality of pivotal brackets 460 mounted on the upper portion of the pivotal portion 450 to be coupled with the threaded portion of the central shaft 440, And a link member 480 having one end coupled to the pivot bracket 460 and the other end pivotally coupled to the bushing 470 The.

The rotation of the central shaft 440 causes the bushing 470 to move upward or downward along the central axis 440 and the link member 480 connected to the bushing 470 is rotated in the direction of the angle of the pivot bracket 460 .

The solar cell module 500 is installed at each end of the rotation bracket 460 and is formed to have a petal shape. The solar cell module 500 may be unfolded by the second driving unit 400 to form a flower shape as a whole, or may be folded by the second driving unit 400 to form a flower bud shape.

The reflector 600 is provided at an end of the central axis 440 to reflect the light reflected by the solar cell module 500 toward the solar cell module 500. The reflector 600 is formed in a disk shape, .

5 to 7 illustrate a photovoltaic device according to a second embodiment of the present invention. The photovoltaic device according to the second embodiment of the present invention includes a strut, a divided solar cell module 500, and a drive unit.

The drive unit includes a base plate 710, a fixed case 720, a drive motor 730, a rotary case 740, and a control unit.

The base plate 710 is provided on the upper part of the support and is formed into a disc shape.

A plurality of fixing cans 720 are provided on the edge of the base plate 710 along the circumferential direction of the base plate 710 and a mounting groove 725 And a first inclined surface 721 inclined with respect to the base plate 710 is formed on the end side. The first inclined surface 721 is formed to be inclined downward from the side adjacent to the center of the base plate 710 toward the side farther from the base plate 710.

The driving motor 730 is installed in each of the mounting grooves 725 of the fixed case 720 so that the rotating shaft thereof is perpendicular to the first inclined surface 721 and rotates the rotating case 740 described later.

The rotary case 740 is formed at one side with a second inclined surface having a shape corresponding to the first inclined surface 721 so as to be in contact with the first inclined surface 721 of the fixed case 720, ) Is installed.

The rotation case 740 is rotated about the rotation axis of the drive motor 730 in a state where the rotation axis of the drive motor 730 is coupled to the second inclined plane side and is in contact with the first inclined plane 721.

The control unit is capable of expanding or collapsing the divided solar cell module 500 by rotating the drive motor 730 mounted on each fixed case 720 in the forward and reverse directions. The control unit preferably controls the drive motor 730 to rotate in the same direction so as not to interfere with the adjacent divided solar cell module 500 when the divided solar cell module 500 is expanded or collapsed.

When the rotary case 740 is rotated to one side through the driving motor 730, the divided solar cell module 500 is rotated with the rotary case 740 And when the rotary case 740 is rotated to the other side, the divided solar cell modules 500 are folded in directions adjacent to each other, and during the night when electricity can not be generated, due to the external environment such as strong wind It is possible to prevent the solar cell module from being damaged.

While the present invention has been described in connection with what is presently considered to be practical 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. I will understand the point. Accordingly, the true scope of protection of the present invention should be determined only by the technical idea of the appended claims.

100: holding
200: base frame
210:
220:
300:
310: driving cylinder
320: Connection bracket
400:
410: drive motor
420: Worm
430: Worm wheel
440: center axis
450:
460: Pivot bracket
470: Bushing
480: Link member
500: solar cell module
600:

Claims (3)

A photovoltaic device comprising a strut and a power generating part including a plurality of divided cell modules independently provided on top of the strut,
Further comprising a drive unit for spreading the divided battery modules of the power generation unit apart from each other at a time when the power generation is possible and for folding the divided battery modules close to each other at a time when power generation is impossible.
The method according to claim 1,
The drive unit
A base frame rotatably installed on the upper portion of the support,
A first driving unit for rotating the base frame with respect to the support,
A driving motor provided on the base frame,
A worm and a worm wheel mounted on a shaft of the drive motor,
A center shaft coupled to a center of the worm wheel and having a threaded portion formed on an outer peripheral surface on an end side,
A worm wheel, a shaft bearing part formed on the worm wheel so as to surround the center shaft and supported by the base frame,
A plurality of pivotal brackets spaced apart from each other in the circumferential direction of the axis of the bearing unit and having one end of the divided battery module at an end thereof,
A bushing coupled to the threaded portion at an upper portion of the bearing portion and reciprocating up and down along the central axis along the rotational direction of the center shaft;
And a second driving unit including a link member having one end coupled to the pivot bracket and the other end pivotally coupled to the bushing.
The method according to claim 1,
The drive unit
A base plate installed on the upper portion of the column,
A mounting groove is formed on the edge of the base plate so as to be spaced apart from the base plate along the circumferential direction of the base plate so that a driving motor can be inserted therein and a first inclined surface inclined with respect to the base plate is formed The case,
A drive motor installed in the fixed case such that the rotary shaft is perpendicular to the first inclined surface,
A second inclined surface contacting the first inclined surface of the fixed case is formed on one side of the first case and is rotatable about the rotational axis of the driving motor in a state of being engaged with the rotating shaft of the driving motor and contacting the first inclined surface, And a rotary case provided with a battery module,
And the divided battery module is extended to be parallel to the rotating plate when the rotating case is rotated to one side through the driving motor, and when the rotating case is rotated to the other side, the divided battery modules are folded in directions adjacent to each other. Photovoltaic devices.

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