KR102427335B1 - The sunlight tracking device in which rotation and slope is controlled - Google Patents

Abstract

The present invention discloses a solar tracking device in which rotation and tilt are controlled simultaneously. Specifically, a fixed post vertically fixed to the ground; a rotating bushing that is rotatably coupled to the fixed post left and right; a support frame rotatably coupled to an upper end of the vertical post; a support member interconnecting the support frame so that the support frame is also rotated by the rotation of the rotary bushing; a module frame rotatably installed up and down on the support frame and to which a solar panel is attached; A motor fixed to the fixed post, a reducer interlocked with the motor shaft, a worm interlocked with an output shaft of the reducer, and a first worm wheel coupled to an outer circumferential surface of the rotating bushing and formed in a ring shape to engage one side of the worm Rotation control means comprising a; characterized in that it includes.

Description

The sunlight tracking device in which rotation and slope is controlled}

The present invention relates to a solar tracking device, and more particularly, to a solar tracking device capable of simultaneously controlling rotation and inclination so that a solar panel can track the sun during the day.

In general, a solar cell is a cell that generates electricity using sunlight. That is, a method of generating electricity using sunlight and using this electricity to operate various machines and instruments is called solar power generation.

Solar power generation is a technology that allows unlimited, pollution-free sunlight to be directly converted into electricity. Solar power generation uses infinite clean energy. No separate energy or driving source is required, and the system construction from small to large scale is simple. On the other hand, it has the advantage that it is not affected by installation restrictions due to environmental problems, while the amount of power generation is dependent on the amount of solar radiation, many solar modules are required to obtain large power, and it is expensive compared to commercial power and is used in daily life. There is a disadvantage that direct current rather than alternating current is obtained first.

Recently, methods for generating electricity by installing large-scale solar panels in various places have been tried.

Most of the conventional solar panel structures are fixed types in which a solar panel equipped with a solar cell is installed and fixed at a certain angle toward the south or north direction.

However, since the power generation efficiency by the photovoltaic panel may vary depending on various factors, it is necessary to maximize the focused energy in order to obtain the optimum power generation efficiency. To this end, it is required that the angle between the solar panel and the sunlight is perpendicular.

Therefore, recently, many solar power generation devices with a tracking device driven to track the solar panel along the movement path of the sun by day and season have been proposed.

1 is a perspective view showing a conventional general solar tracking device.

This is a photovoltaic power generation device having a vertical angle adjustment function of the photovoltaic module. Briefly, the photovoltaic module 11 in which a plurality of photovoltaic cells are disposed, and the photovoltaic module located on the rear surface of the photovoltaic module A flat frame 12 for fixing the, a vertical frame 13 extending in the vertical direction from the ground and fixing the flat frame, one end of the first member 14 coupled to the vertical frame by a hinge, and one end The second member is connected to the other end of the first member to be stretchable and the other end is hinged to the rear surface of the flat frame, and a cover member for protecting the connecting portion of the first member and the second part. The vertical angle of the power generation module is adjusted by the expansion and contraction of the second member.

And it is also possible to add a structure in which the flat frame rotates to track the sun for a day with respect to the vertical frame fixed by providing a separate driving device.

However, because the size of the flat frame that fixes the photovoltaic module is basically large, the entire frame shakes when a strong wind blows, and the connection between the vertical frame and the flat frame is broken or damaged by continuous external force. occurs

In addition, the rotation control device for rotating the frame left and right to track the movement of the sun during the day and the tilt angle control device for controlling the inclination of the frame are separately provided and operated, which is complicated and expensive.

In addition, as the flat frame is forcibly rotated during strong winds, a serious problem of damage to the inside of the rotation control device or the inclination angle control device may occur.

Republic of Korea Patent Registration 10-1031286 (April 19, 2011) "Solar Tracking Device" Republic of Korea Patent 10-0799260 (2008.1.23.) "Solar power generation device with module frame driving device" Republic of Korea Patent Registration 10-1251900 (2013.4.2.) "Solar Tracking and Condensing Device"

Accordingly, the present invention is to solve the above problems, and an object of the present invention is to have a structure that is not damaged by strong wind or vibration, and a structure that can control the rotation of the support frame and the inclination of the module frame with one driving device An object of the present invention is to provide a solar tracking device in which rotation and inclination are simultaneously controlled.

A solar tracking device in which rotation and inclination are controlled at the same time according to the present invention for achieving the above object, a fixed post fixed vertically to the ground; a rotating bushing that is rotatably coupled to the fixed post left and right; a support frame rotatably coupled to an upper end of the vertical post; a support member interconnecting the support frame so that the support frame is also rotated by the rotation of the rotary bushing; a module frame rotatably installed up and down on the support frame and to which a solar panel is attached; A motor fixed to the fixed post, a reducer interlocked with the motor shaft, a worm interlocked with an output shaft of the reducer, and a first worm wheel coupled to an outer circumferential surface of the rotating bushing and formed in a ring shape to engage one side of the worm Rotation control means comprising a; may be configured to include.

Here, inclination control means comprising a second worm wheel engaged with the other side of the worm, and an inclination control link having one end hinged to the edge of the second worm wheel and the other end hinged to the module frame; The inclination of the module frame may be adjusted simultaneously with the rotation of the support frame.

And between the module frame and the inclination control link, a damping means for absorbing shock may be further added.

In addition, it is preferable that a plurality of the module frames are provided and connected by an interlocking link so as to be synchronized with each other.

According to the present invention described above, there are the following effects.

First, since the fixed post does not rotate and only the rotating bushing rotates, there is no risk of damage to the rotation control means or the inclination control means even if the support frame receives force by strong wind.

Second, it is possible to control the rotation of the support frame and the inclination of the module frame with a single driving device, rather than using a separate driving device, so that the structure is very simple and power consumption is low.

Third, since each module frame is interlocked, it can be simultaneously controlled by one inclination control means.

1 is a perspective view showing a conventional general solar tracking device;
2 is a perspective view showing a solar tracking device in which rotation and inclination are simultaneously controlled according to an embodiment of the present invention;
3 is a structural diagram showing the inside of the rotation control means of the present invention shown in FIG.
4 is a structural diagram showing the inside of the inclination control means of the present invention shown in FIG.
5 is a cross-sectional view showing the structure of the exhaust means of the present invention shown in FIG.
6 is an operational state diagram of the present invention;

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

For reference, the description with reference to the drawings is for easier understanding of the present invention, and the scope of the present invention is not limited thereto. And in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

2 is a perspective view illustrating a solar tracking device in which rotation and inclination are simultaneously controlled according to an embodiment of the present invention.

The present invention largely includes a fixed post 100 , a rotary bushing 200 , a support frame 300 , a support member 400 , a module frame 500 , a rotation control means 600 , and a tilt control means 700 . can be configured.

First, the fixing post 100 will be described.

The fixing post 100 is vertically fixed to the ground, and supports the entire configuration of the present invention.

The fixing post 100 preferably has a circular column shape, and is firmly fixed to the ground so as not to rotate itself.

And it is preferable to have a material or shape having high tensile strength, bending strength, or torsion strength so as not to be shaken or damaged by strong winds or various external forces.

Next, the rotary bushing 200 will be described.

The rotating bushing 200 is a hollow rotating ring with both ends open to be rotatably coupled to the outer peripheral surface of the fixed post 100 .

At this time, the fixing post 100 may be formed with a stopping protrusion 210 spaced up and down so that the rotating bushing 200 spans the middle of the fixing post 100 .

Accordingly, the rotating bushing 200 is mounted so as to be rotatable only left and right at the fixed position of the fixed post 100 .

Next, the support frame 300 will be described.

The support frame 300 is rotatably installed on the upper end of the fixed post 100 to support a plurality of photovoltaic module frames 500 .

The support frame 300 has a structure in which a plurality of beam members are connected between the ends to form a rectangular skeleton.

Specifically, side beams 310 are provided on both sides, and a center beam 320 is provided in the middle.

In this case, the support frame 300 may have a truss structure to prevent distortion or bending.

And as described above, the upper end of the fixing post 100 is coupled, and the entire support frame is coupled to the center of the center beam 320 so that the entire support frame is rotatable, and the upper end of the fixing post 100 is inserted therein and rotates. A cap 330 that can do this may be provided.

In addition, the support frame 300 may be installed horizontally, but is preferably installed inclined to one side.

Because, once in Korea, the movement path of the sun is inclined for one day, so in order for the solar panel to be perpendicular to the sun, it is preferable that the support frame 300 be installed to be inclined toward the movement path of the sun.

In addition, the detailed inclination angle adjustment of the solar panel can be implemented by the inclination control means 700 for controlling the inclination of the module frame 500 to be described later.

Next, the support member 400 is a rod or beam member connecting the rotating bushing 200 and the support frame 300 .

One end of the support member 400 may be coupled to the outer circumferential surface of the rotating bushing 200 , and the other end may be coupled to the edge of the support frame 300 .

The support member 400 is provided with a plurality of, as shown, four are provided and are respectively coupled to the outer peripheral surface of the rotating bushing 200 in four directions.

And the other end of each support member 400 is coupled to the four corners of the support frame 300, or both ends of the center beam 320 as shown, and to be coupled to the center of the side beam 310 on both sides, respectively. can

Accordingly, when the rotation bushing 200 is rotationally driven by a rotation control means 600 to be described later, the entire support frame 300 may rotate left and right.

Next, one or more module frames 500 are mounted on the support frame 300 .

The module frame 500 is to which a solar panel is attached and fixed, and forms a rectangular frame shape.

Each module frame 500 can be operated to rotate (swing) up and down on the support frame to adjust the inclination of the solar panel.

To this end, the rotation shaft 510 crossing the center of the module frame 500 is coupled.

In addition, the rotation shaft 510 is rotatably supported by bearings 520 provided at both ends of the side beam 310 of the support frame 300 .

In this case, half of the length of the module frame 500 should be shorter than the distance between the center beam 320 and the side beam of the support frame 300 . Thus, even if the module frame 500 rotates up and down, it does not collide with the center beam 320 .

Next, the rotation control means 600 will be described with reference to FIG. 3 together.

3 is a structural diagram showing the inside of the rotation control means of the present invention shown in FIG. Here, Fig. 3(a) is a side view, and Fig. 3(b) is a plan view.

The rotation control means 600 is a means capable of driving the support frame 300 to the left and right by interlocking with the movement speed of the sun.

The rotation control means 600 may include a motor 610 , a reducer 620 , a worm 630 , and a first worm wheel 640 .

The motor 610 is fixedly installed on the outer peripheral surface of the fixing post 100 . A separate case 650 may be fixed and coupled to the fixing post 100 for installation of the motor 610 , and the motor 610 , the reducer 620 , and the worm 630 are located inside the case 650 . ) and the first worm wheel 640 may be built-in installed.

A speed reducer 620 is mounted on the shaft of the motor 610 . The reducer 620 sharply reduces the rotation speed of the motor 610 so that the worm 630 and the first worm wheel 640 rotate very slowly. This is because the rotational speed of the first worm wheel 640 must be synchronized with the moving speed of the sun.

A worm is coupled to the output shaft of the reducer 620 , and the worm 630 is engaged with the first worm wheel 640 .

At this time, the first worm wheel 640 is coupled to and fixed to the outer peripheral surface of the rotating bushing 200 .

Accordingly, the rotational force by the driving of the motor 610 rotates the first worm wheel 640 through the reducer 620 and the worm 630 , so that the rotating bushing 200 rotates.

At this time, by appropriately adjusting the reduction ratio of the speed reducer 620, the first worm wheel 640 can be synchronized with the moving speed of the sun from sunrise to sunset.

To this end, it is preferable that a separate controller (not shown) is provided to precisely control the rotation speed of the motor 610 . Because the sunrise and sunset times vary according to season, a controller programmed accordingly can synchronize the movement of the sun by controlling the rotation speed of the motor.

And since the support frame 300 only needs to rotate while the sun is rising, the first worm wheel 640 is controlled to rotate only 1/2. In other words, since the sun rises in the east and sets in the west, the support frame 300 is turned toward the east at sunrise and then rotates 180° to face the west at sunset.

Therefore, the controller may control the first worm wheel to rotate 180° and then reversely rotate after sunset to return to the original position, or rotate 180° more after sunset to return to the original position.

Next, the inclination control means 700 will be described with reference to FIG. 4 together. 4 is a structural diagram showing the inside of the inclination control means of the present invention shown in FIG. Here, Fig. 4 (a) is a side view, and Fig. 4 (b) is a plan view.

The inclination control means 700 controls the inclination of the module frame 500 , and may include a second worm wheel 710 and an inclination control link 720 .

Even if the support frame 300 rotates along the path of the sun, the actual altitude of the sun continues to change, so in order for the solar panel to be perpendicular to the sun, the inclination of the solar panel must be adjusted.

To this end, the second worm wheel 710 is installed to engage the other side of the worm 630 . That is, as shown, the first worm wheel 640 is engaged with one side of the worm 630 , and the second worm wheel 710 is engaged with the other side of the worm 630 .

And one end of the inclination control link 720 is hinged or ball-jointed to the edge of the second worm wheel 710 , and the other end of the inclination control link 720 is hinged or ball-jointed to one side of the module frame 500 . are combined

Accordingly, as the second worm wheel 710 rotates, the inclination of the module frame 500 can be adjusted because the inclination control link 720 pulls or pushes the module frame 500 .

Importantly, as described above, while the sun is moving, that is, while the first worm wheel 640 rotates 180°, the second worm wheel 710 is operated to make one rotation.

In detail, the inclination of the module frame 500 becomes the largest at sunrise, and the inclination of the module frame 500 should be the most gentle when the sun is located at the southern middle altitude, and at sunset the module frame (500) should be in a state of forming the maximum inclination again.

That is, when the inclination control link 720 is in the first position of the second worm wheel 710 at sunset, the inclination of the module frame 500 is the largest, and the second position of the second worm wheel 710 is When reaching , the inclination of the module frame 500 becomes the smallest.

As a result, the first worm wheel 640 and the second worm wheel 710 may have a rotation ratio of 1:2. That is, the second worm wheel 710 rotates once while the first worm wheel 640 rotates 1/2.

For reference, as shown, the rotation control means 600 and the inclination control means 700 may be installed in the middle of the fixed post 100 , but the upper end of the fixed post 100 and the cap 330 . It can also be installed on the bottom.

In the present invention, it is preferable that at least one module frame 500 is provided.

That is, the length of the support frame 300 may be increased, and a plurality of the module frames 500 may be installed on the support frame 300 .

However, rather than controlling the inclination of a plurality of module frames 500 by the inclination control means 700 individually, it is preferable to control only one module frame 500 and interlock the rest to control the inclination at the same time. do.

To this end, the module frame 500 is connected to each other by an interlocking link 530 .

The interlocking link 530 includes a first link 531 vertically coupled to the rotation shaft 510 of each module frame 500 and a second link 532 having both ends hinged between the adjacent first link 531 . ) may consist of

Therefore, when the inclination of the module frame 500 directly connected to the inclination control link 720 of the inclination control means 700 changes, the inclination of the other module frames 500 by the interlocking link 530 also changes in the same manner. .

On the other hand, between the module frame 500 and the inclination adjustment link 720, it is preferable that the absorption means 800 is further provided. 5 is a cross-sectional view showing the structure of the exhaust means of the present invention shown in FIG.

The absorption means 800 absorbs shock when the module frame 500 is shaken by an external force such as strong wind or vibration, and allows the changed inclination to return to its original position.

Specifically, referring to the bar shown in FIG. 5 , the suction means 800 includes a hanger 810 formed in a 'U' shape and hinged to the module frame 500 , and a movement fitted to the hanger 810 . A plate 820, a fixing plate 830 coupled to the end of the hanger 810, a spring 840 inserted between the moving plate 820 and the fixing plate 830, and one end of the fixing plate 830 and a hanger rod 850 that penetrates through the spring 840 and is coupled to the moving plate 820 and the other end is coupled to the sawing inclination control link 720 .

Therefore, when the inclination of the module frame 500 is changed by an external force, the spring 840 is compressed or stretched while the moving plate 820 moves, so that the shock is absorbed, and when the external force is removed, the original inclination can be restored. .

In addition, in the present invention, a reinforcing member 910 may be further provided to prevent damage to the support frame 300 .

To this end, the reinforcing bushing 900 is fitted to the fixed post 100 on the upper or lower side of the rotating bushing 200 and is rotatable, and the reinforcing bushing 900 is supported on the outer circumferential surface of the reinforcing bushing 900 . A reinforcing member 910 connecting the frame 300 may be further added.

Due to the reinforcing member 910, the support frame 300 may be more firmly maintained.

Hereinafter, the operating state of the present invention will be described. 6 shows an operational state diagram of the present invention. Here, FIG. 6(a) shows a state at sunrise, FIG. 6(b) shows a state at noon, and FIG. 6(c) shows a state at sunset.

First, when the sun is located in the east at sunrise as shown in FIG. 6( a ), the rotation control means 600 rotates the rotating bushing 200 so that the support frame 300 faces to the east. That is, the inclination of the support frame 300 is positioned to face the east.

And the second worm wheel 710 and the inclination control link 720 of the inclination control means 700 are also located in the initial state, so that the inclination of the module frame 500 is the maximum. This is because the inclination of the module frame 500 must be large in order to receive sunlight vertically because the altitude of the sun is low.

Next, as shown in FIG. 6(b) at noon or when the sun is located at the southern middle altitude, the rotating bushing 200 also rotates about 90° accordingly so that the support frame 300 faces south.

And the second worm wheel 710 rotates by 180° so that the inclination of the module frame 500 is the smallest and the most gentle. This is because, since the altitude of the sun is the highest during the day, the slope must be small to receive sunlight vertically.

Next, when the sun is located in the west at sunset as shown in FIG. 6(c), the rotating bushing 200 also rotates about 90° so that the support frame 300 faces the west.

Then, the second worm wheel 710 rotates again by 180° so that the inclination of the module frame 500 becomes the maximum. That is, this is because the second worm wheel 710 rotates once so that the inclination control link 720 is returned to its original position.

For reference, before the next day, the rotation control means 600 rotates the rotating bushing 200 forward or reverse by 180° to return to the initial state. At this time, the inclination control means 700 is also returned to the initial state while rotating once again, or although not described, a clutch (not shown) is added between the worm 630 and the second worm wheel 710 to control the rotation control means ( When the 600) returns to the initial state, the inclination control means 700 may not be operated.

Although the exemplary embodiments of the present invention have been described above with reference to the drawings, those skilled in the art to which the present invention pertains will be able to make various applications and modifications within the scope of the present invention based on the above contents. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims described below as well as the claims and equivalents.

100: fixed post
200: rotating bushing 210: locking jaw
300: support frame 310: side beam
320: center beam 330: cap
400: support member
500: module frame 510: rotation shaft
520: bearing 530: interlocking link
531: first link 532: second link
600: rotation control means 610: motor
620: reducer 630: worm
640: first worm wheel 650: case
700: slope control means
710: second worm wheel 720: inclination adjustment link
800: absorption means 810: hanger
820: moving plate 830: fixed plate
840: spring 850: hanger rod
900: reinforcing bushing 910: reinforcing member

Claims (4)

Fixed posts fixed vertically to the ground; a rotating bushing that is rotatably coupled to the fixed post left and right; a support frame rotatably coupled to an upper end of the fixed post; a support member interconnecting the support frame so that the support frame is also rotated by the rotation of the rotary bushing; a module frame installed rotatably up and down on the support frame and to which a solar panel is attached; A motor fixed to the fixed post, a reducer interlocked with the motor shaft, a worm interlocked with an output shaft of the reducer, and a first worm wheel coupled to an outer circumferential surface of the rotating bushing and formed in a ring shape to engage one side of the worm In the solar tracking device comprising; rotation control means comprising a,
Inclination control means including a second worm wheel engaged with the other side of the worm, and an inclination control link having one end hinged to the edge of the second worm wheel and the other end hinged to the module frame; Adjusting the inclination of the module frame simultaneously with the rotation of the frame,
Between the module frame and the inclination control link, a 'U' shape, a hanger hinged to the module frame, a moving plate fitted to the hanger, a fixed plate coupled to an end of the hanger, and the moving plate and a damping means comprising a spring inserted between the fixed plate and a hanger rod having one end coupled to the moving plate through the fixed plate and the spring and the other end coupled to the inclination control ring; is further added to absorb the shock A solar tracker with simultaneous control of rotation and tilt. delete delete The method of claim 1,
The module frame is provided with a plurality,
A solar tracking device in which rotation and inclination are simultaneously controlled, characterized in that they are connected by an interlocking link to be synchronized with each other.

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