Rotating device of pole system for solar power generation

Abstract

The present invention discloses a rotating device for a solar power generation pole system, comprising: a first tubular body connected to a solar panel array; a second tubular body coupled to the lower portion of the first tubular body and fixed to the upper end of the pole; a gear portion for transmitting rotational force to the first tubular body; a driving motor for providing rotational force to the gear portion; and a contact portion having at least three contacts which are arranged at a coupling portion between the first tubular body and the second tubular body and which maintain a contact state with the second tubular body when the first tubular body rotates relative to each other to transmit power or signals.

Description

[0001] This application claims the priority of Korean Patent Application No. 10-2020-0042437 filed on April 7, 2020, and all contents disclosed in the specification and drawings of that application are incorporated into this application. Technical Field

[0002] The present invention relates to a rotating device for a solar power generation pole system, and more specifically to a rotating device for a solar power generation pole system arranged on a pole to provide a rotating force to a solar panel. Background Art

[0003] Typically, solar power generation systems gather a large number of solar panels in forests or fallow land, building roofs, reservoirs, salt fields and other places to form a community form.

[0004] When the solar power generation site is a forest or farmland, it is necessary to carry out logging or civil engineering to clear the site before installing the frame structure and solar panels, which inevitably causes environmental damage such as large-scale destruction of trees and sand. Due to these side effects, forests and other places are not easy to be used as solar power generation sites even if they meet the site conditions required for solar power generation.

[0005] Korean Patent Publication No. 2011-0024887 discloses a self-weighted solar power generation device that can be installed in a non-destructive manner on a roof of a building or a embankment, etc. The self-weighted solar power generation device includes at least one column component formed by continuously connecting columns, and a light collecting plate combined with the upper part of the column component. The upper surface of the column is provided with an inclined surface, and a filling material receiving space for receiving a filling material is provided inside.

[0006] Korean Patent Publication No. 2016-0086729 relates to a method for installing solar modules without occupying fields or paddy fields, and discloses a solar module and method arranged in a field, which has a lower support frame, a setting fixing frame and a column frame so that the solar module can be easily arranged in a field or paddy field during the off-season after the autumn harvest. In addition, Korean Patent Publication No. 2016-0086729 discloses a solar module, which has a structure that is connected to a setting fixing frame of a simple construction solar module and one side of a protection frame of another simple construction solar module by a hinge mechanism to stack and arrange a plurality of simple construction solar modules, and can be deployed for construction when in use.

[0007] However, since the frame structure supporting the solar panels in the existing solar power generation system occupies a large area, there is still a problem of serious natural damage during construction, so an alternative solution is needed.

[0008] In addition, conventional solar power generation systems generally have fixed solar panels, which results in low efficiency of solar power generation. Although there are known systems that generate solar power by moving solar panels to follow the movement of the sun, they are difficult to construct because the devices are complex and expensive.

[0009] In order to improve the efficiency of solar power generation, it is preferred to rotate the solar panel along a predetermined path in consideration of the amount of sunlight. However, if the solar panel is placed on the upper end of the pole and the shaft of the drive motor is simply connected to the solar panel to rotate it, the shaft of the drive motor may be overloaded, and the connection between the shaft and the solar panel may be misaligned or damaged under external forces such as wind, and the wiring of the rotating part may be disconnected, so countermeasures are needed. Summary of the invention

[0010] Technical issues

[0011] The present invention is proposed in consideration of the above-mentioned problems, and its object is to provide a rotating device for a solar power generation pole system having a structure that can rotate solar panels through a simplified driving device to save the cost of solar power generation equipment and can use the electricity generated by solar panels to rotate solar panels.

[0012] Another object of the present invention is to provide a rotating device for a solar power generation pole system that can solve the problem that the connection between the rotating device and the solar panel is misaligned or damaged due to external forces such as wind and the connection of the rotating part is disconnected.

[0013] Technical Solution

[0014] In order to achieve the above-mentioned purpose, the present invention provides a rotating device for a solar power generation pole system, which is a rotating device for a solar power generation pole system arranged at the upper end of the pole to rotate a solar panel array, comprising: a first tubular body connected to the solar panel array; a second tubular body combined with the lower part of the first tubular body and fixed to the upper end of the pole; a gear part that transmits rotational force to the first tubular body; a driving motor that provides rotational force to the gear part; and a contact part having at least three contacts that are arranged at the joint between the first tubular body and the second tubular body and maintain a contact state when the first tubular body and the second tubular body rotate relative to each other to transmit power or signals.

[0015] The solar panel array is composed of a plurality of solar panels connected in series, the contact portion includes a first contact, a second contact and a third contact, both ends of the overall output section of the plurality of solar panels are connected to the first contact and the second contact, and both ends of a portion of the output section of the plurality of solar panels are connected to the first contact and the third contact, the electric energy output through the first contact and the second contact is supplied to an inverter for power generation, and the electric energy output through the first contact and the third contact can be supplied to the drive motor.

[0016] The first to third contacts may be configured such that one side of any one of the contact pairs is formed of a conductor loop and the other side is formed of a conductor block capable of contacting the conductor loop.

[0017] The conductor ring of the first contact and the conductor ring of the second contact are arranged concentrically with each other, and the third contact is arranged on the upper side relative to the second contact and can be arranged on the inner side relative to the radial direction from the rotation axis of the rotating device.

[0018] The first contact may serve as a cathode common terminal for the second contact and the third contact.

[0019] The present invention also includes a bearing having an upper ring and a lower ring, either of which is connected to the first tubular body and the other is connected to the second tubular body; the gear portion can be engaged with gear teeth formed along the periphery of the upper ring or the lower ring.

[0020] The bearing is arranged to lie down with its central axis of rotation perpendicular to the ground, and gear teeth formed along the periphery of the upper ring of the bearing are meshed with the gear part, which is composed of a linkage gear with a braking function to prevent the gear from loosening, and the drive motor can be arranged inside the second tubular body.

[0021] Technical Effects

[0022] The rotating device of the solar power generation pole system according to the present invention has the following effects.

[0023] First, the assembly having the bearing, the first tubular body and the second tubular body can firmly support the solar panel array installed on the vertical pole and stably transmit the rotational force without shaking when subjected to various vibrations or external forces such as wind.

[0024] Second, other low-power energy different from the power generation energy can be drawn from a part of the solar panel array to effectively supply power to the drive motor and the PCB.

[0025] Third, even if the diameters of the first tubular body and the second tubular body are designed to be the same or similar to the diameter of the pole, smooth rotation can be ensured by the bearing interposed between the first tubular body and the second tubular body, and rotation can be precisely controlled in seconds.

[0026] Fourth, the rotating device can be miniaturized and simplified in structure, so the investment cost can be quickly recovered, thereby solving the defects of existing solar tracking devices with frequent failure rates and high prices.

[0027] Fifth, as for the characteristics of solar panels being supported by poles, the solar panels are sufficiently separated from the ground and have smooth ventilation, thus being able to suppress the temperature rise of the solar panels to improve the efficiency of solar power generation.

[0028] Sixth, when the solar power generation unit is located in a mountainous area or a forest, the trees around the poles supporting the solar panels can be left intact, thereby minimizing damage to nature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A rear perspective view showing the appearance of a rotating device of a solar power generation pole system according to a preferred embodiment of the present invention;

[0030] Figure 2 for Figure 1 A partial enlarged view of the middle rotating device;

[0031] Figure 3 To show Figure 2 An exploded perspective view of the internal structure of the rotating device;

[0032] Figure 4 To show Figure 3 A three-dimensional diagram of the structure of the middle drive motor and the first contact;

[0033] Figure 5 for Figure 2 sectional view of

[0034] Figure 6 It is a simplified wiring diagram of a rotating device for a solar power generation pole system according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0035] Figure 1 This is a rear perspective view showing the appearance of a rotating device for a solar power generation pole system according to a preferred embodiment of the present invention. Figure 2 for Figure 1 A partial enlarged view of the rotating device in the middle. Figure 3 To show Figure 2 An exploded perspective view of the internal structure of the rotating device. Figure 4 To show Figure 3A three-dimensional diagram of the structure of the driving motor and the first contact point, Figure 5 for Figure 2 Cross-sectional view of .

[0036] See also Figures 1 to 5 According to a preferred embodiment of the present invention, the rotating device 100 of the solar power generation pole system includes a first tubular body 101 connected to the back of the solar panel array 15, a second tubular body 106 assembled at the lower part of the first tubular body 101 and fixed at the lower end of the pole 10, a driving motor 107 provided inside the second tubular body 106 to provide a rotational force to the first tubular body 101, and a contact part 102, 103, 104 having at least three contacts provided at the joint between the first tubular body 101 and the second tubular body 106.

[0037] The solar panel array 15 includes a plurality of solar panels 15 a connected in series.

[0038] The solar panel array 15 is installed on the inclined surface formed at the upper end of the first tubular body 101 and is inclined relative to the ground. The setting angle of the solar panel array 15 depends on the angle of the inclined surface.

[0039] The pole 10 is vertically erected relative to the ground, and the lower end is fixed to the ground by a locking member such as an anchor bolt. Preferably, the pole 10 can be formed of a metal tubular body with a rounded outer surface like a general electric pole, and can also be formed of various materials in various shapes.

[0040] The first tubular body 101 is a tubular member having a circular outer peripheral surface and a waterproof cover 105 disposed on an inclined upper surface. The waterproof cover 105 is detachably coupled so that the inner space of the first tubular body 101 can be opened and closed.

[0041] The second tubular body 106 is assembled into a tubular member with a circular outer peripheral surface located below the first tubular body 101. The lower end of the second tubular body 106 is provided with a space into which the upper end of the vertical pole 10 can be inserted. When the vertical pole 10 is inserted, the second tubular body 106 is fixed to the upper end of the vertical pole.

[0042] In order to improve the coupling performance between the rotating device 100 and the pole 10 and form a component with a stable structure, the diameters of the first tubular body 101 and the second tubular body 106 may be designed to be the same as or similar to the diameter of the pole.

[0043] A predetermined bearing may be interposed between the first tubular body 101 and the second tubular body 106. The bearing is arranged to lie down so that the central axis of rotation is perpendicular to the ground. The bearing has an upper ring connected to the first tubular body 101 by assembly bolts and rotates as a whole, and a lower ring assembled at the lower part of the upper ring and connected to the second tubular body 106 by bolts or the like and fixed. A plurality of balls are arranged between the upper ring and the lower ring. Gear teeth are formed at certain intervals along the inner peripheral edge of the upper ring of the bearing. The gear teeth formed on the upper ring mesh with the gear part 109 connected to the drive motor 107. Furthermore, gear teeth that mesh with a part of the gear constituting the gear part 109 and guide the rotation may be formed on the lower ring of the bearing.

[0044] In order to minimize the occupied space, the gear part 109 is configured to be at least partially inserted into the hollow of the bearing. Preferably, the gear part 109 is composed of a plurality of planetary gear assemblies. The plurality of planetary gears mesh with the gear teeth formed on the upper ring to transmit power. Preferably, the gear part 109 is composed of a linkage gear with a braking function to prevent the gear from loosening.

[0045] Preferably, the driving motor 107 is vertically fixed inside the second tubular body 106 and is coaxial with the second tubular body 106 to provide a rotational force to the gear part 109 .

[0046] like Figures 3 to 5 As shown, the first tubular body 101 and the second tubular body 106 are provided with a first contact 102, a second contact 103 and a third contact 104 for transmitting power and / or signals at the joint part or the periphery or contact part thereof. Although not shown in the figure, according to a variation of the present invention, a rotating device with more than three contacts may also be provided.

[0047] The first contact 102 and the second contact 103 are respectively composed of a pair of conductor rings 102a and 103a fixed to be substantially connected to the second tubular body 106, and conductor blocks 102b and 103b that keep in contact with the conductor rings 102a and 103a while sliding on the upper surfaces of the conductor rings 102a and 103a when the first tubular body 101 and the second tubular body 106 rotate relative to each other. The conductor ring 102a of the first contact 102 and the conductor ring 103a of the second contact 103 are arranged in concentric circles with each other. Either the first contact 102 or the second contact 103 serves as a cathode terminal and the other serves as an anode terminal. See Figure 6 The two ends of the overall output section of the plurality of solar panels 15a are respectively connected to the first contact 102 and the second contact 103. The electric energy outputted by the first contact 102 and the second contact 103 is supplied to the power generation inverter 108 for power generation.

[0048] The third contact 104 is composed of a conductor ring 104a fixed to the rotating part of the gear part 109 on the upper side of the first contact 102 and the second contact 103 so as to rotate integrally with the first tubular body 101, and a contact pair of a conductor block 104b that slides on the bottom of the conductor ring 104a while maintaining contact when the first tubular body 101 and the second tubular body 106 rotate relative to each other.

[0049] The third contact 104 is electrically connected to the anode terminal drawn from a part of the output sections (e.g., the output end of one solar panel 15a) of the plurality of solar panels 15a constituting the solar panel array 15. The electric energy output through the third contact 104 is used as a power source for driving the drive motor 107 and the predetermined PCB. Preferably, the third contact 104 is relatively arranged on the inner side from the rotation axis of the rotating device in the radial direction compared to the second contact 103, that is, arranged close to the drive motor 107 to supply power to the drive motor 107 and the PCB.

[0050] It is preferable that the first contact 102 serves as a cathode common terminal for the second contact 103 and the third contact 104 .

[0051] The electrical polarities given to the first to third contacts 102 to 104 are not limited to the above-described embodiments, and various modifications are possible, as will be apparent.

[0052] The rotating device 100 of the solar power generation pole system having the above-described structure provides the gear part 109 with the rotational force of the driving motor 107 to rotate the first tubular body 101, thereby slowly rotating the solar panel array 15 fixed to the upper end of the first tubular body 101. The first tubular body 101 rotates relative to the second tubular body 106 fixed to the pole 10 while stably supporting the solar panel 15a. A bearing is interposed between the first tubular body 101 and the second tubular body 106, so that the rotation can be stable and gentle from a structural point of view. It is preferred that the path of the solar panel 15a rotating is set to be exposed to the sun as much as possible in consideration of the solar irradiance. When the solar panel 15a is rotated at a certain speed for a certain period of time, even without using a solar tracking device with a complex structure, the amount of solar power generation can be increased compared to the case where the solar panel 15a is left stationary facing one side.

[0053] Furthermore, the solar power generation pole system using the rotating device 100 according to the present invention can be provided with a lifting type lighting unit and a lifting type CCTV camera unit in addition to the solar panel array 15. In this case, when the positive direction rotation drive of the drum built into the body of each unit causes the first lifting rope and the second lifting rope to roll up so that the lighting unit and the CCTV camera unit rise and are combined with each body located at the upper part of the pole 10, the upper contact part and the lower contact part built into each body contact each other, and power can be supplied to the lighting unit and the CCTV camera unit. The power for driving the lighting unit and the CCTV camera unit can be provided, for example, through the first contact.

[0054] According to the solar power generation pole system rotating device 100 of the present invention, when the driving motor 107 is working, the rotational force is transmitted to the bearing through the gear part 109 so that the upper ring of the bearing rotates, and at the same time, the first tubular body 101 connected to the upper ring rotates so that the solar panel array rotates slowly. The first tubular body 101 rotates relative to the second tubular body 106 fixed to the pole while stably supporting the solar panel array.

[0055] The gear part 109 is engaged with the gear teeth formed along the outer periphery of the upper ring of the bearing to transmit the rotational force, and the upper ring is connected to the first tubular body 101 so as to rotate integrally with the first tubular body 101. The first tubular body 101 rotates integrally with the solar panel array fixed thereon. Here, the gear part 109 is configured to be at least partially inserted into the hollow of the bearing, thereby maximizing the space utilization efficiency.

[0056] Therefore, according to the present invention, the solar panel 15a provided at the upper end of the pole 10 can be stably rotated, and solar power generation can be performed efficiently.

[0057] like Figure 6 As shown, the electric energy output from the entire section of the plurality of solar panels 15a is transmitted to the power generation inverter 108 through the first contact 102 and the second contact 103 to produce, for example, 72 to 120V solar electricity.

[0058] Furthermore, the electric energy outputted from a part of the solar panels 15a (eg, the output end of one solar panel 15a) is transmitted to the driving motor 107 and the PCB through the first contact 102 and the third contact 104, supplying a driving power supply of, for example, 24 to 40V.

[0059] In the assembly of the first tubular body 101 and the second tubular body 106 combined with the solar panel 15a, the diameters of the first tubular body 101 and the second tubular body 106 are significantly larger than the diameter of the rotating shaft of the driving motor, so compared with the prior art of simply connecting the rotating shaft of the driving motor to the solar panel to rotate, the rotating force can be stably transmitted. That is, even if subjected to external forces such as vibration or wind generated by the driving motor, the rotating force of the driving motor can still be accurately transmitted to the solar panel 15a.

[0060] Industrial Applicability

[0061] When the present invention is adopted, a contact portion with three contacts is formed at the joint of the first tubular body and the second tubular body of the rotating device, so that low electric energy of several tens of volts, which is different from the electric energy used for power generation, can be drawn from a partial section of the solar panel array to effectively supply power to the drive motor and PCB.

Claims

1. A rotating device for a solar power generation pole system, which is arranged at the upper end of the pole to rotate a solar panel array, and is characterized in that: include: A first tubular body connected to the solar panel array; A second tubular body coupled to the lower portion of the first tubular body and fixed to the upper end of the vertical pole; a gear portion for transmitting a rotational force to the first tubular body; a drive motor that provides a rotational force to the gear portion; and A contact portion having at least three contact points which are arranged at a joint between the first tubular body and the second tubular body and maintain a contact state with the first tubular body and the second tubular body when the first tubular body rotates relative to each other to transmit power or signals; The solar panel array is composed of a plurality of solar panels connected in series. The contact portion includes a first contact, a second contact and a third contact, Two ends of the overall output range of the plurality of solar panels are connected to the first contact point and the second contact point, Two ends of some output sections of the plurality of solar panels are connected to the first contact and the third contact, The electric energy output through the first contact point and the second contact point is supplied to the power generation inverter, and the electric energy output through the first contact point and the third contact point is supplied to the drive motor.

2. The rotating device of the solar power generation pole system according to claim 1, characterized in that: The first to third contacts are respectively configured such that one side of a contact pair is formed of a conductor loop and the other side is formed of a conductor block capable of contacting the conductor loop.

3. The rotating device of the solar power generation pole system according to claim 2, characterized in that: The conductor ring of the first contact and the conductor ring of the second contact are arranged in concentric circles with each other, The third contact is arranged on the upper side relative to the second contact, The rotating device is arranged relatively inside in the radial direction from the rotating shaft.

4. The rotating device of the solar power generation pole system according to claim 2, characterized in that: The first contact serves as a cathode common terminal for the second contact and the third contact.

5. The rotating device of the solar power generation pole system according to claim 2, characterized in that: Also includes: A bearing having an upper ring and a lower ring, wherein either one of the upper ring and the lower ring is connected to the first tubular body and the other is connected to the second tubular body; The gear portion is engaged with gear teeth formed along the outer periphery of the upper ring or the lower ring.

6. The rotating device of the solar power generation pole system according to claim 5, characterized in that: The bearing is disposed in a lying position with its central axis of rotation perpendicular to the ground, and gear teeth formed along the periphery of the upper ring of the bearing mesh with the gear portion. The gear part is composed of a linkage gear with a braking function to prevent the gear from loosening. The driving motor is arranged inside the second tubular body.

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