CN109286363B - Photovoltaic power generation tracking means of rotatory folding expansion - Google Patents
Photovoltaic power generation tracking means of rotatory folding expansion Download PDFInfo
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- CN109286363B CN109286363B CN201811340113.0A CN201811340113A CN109286363B CN 109286363 B CN109286363 B CN 109286363B CN 201811340113 A CN201811340113 A CN 201811340113A CN 109286363 B CN109286363 B CN 109286363B
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- mounting frame
- panel mounting
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- microprocessor
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- 238000010248 power generation Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a photovoltaic power generation tracking device capable of being rotated, folded and unfolded, which comprises a base, a rotary table and an azimuth motor, wherein the rotary table is fixedly connected with a photovoltaic panel support, and the photovoltaic panel support is hinged with a connecting column; the connecting column is fixed with the photovoltaic panel supporting seat, the side wall of the connecting column is fixed with one end of a first connecting rod, and the other end of the first connecting rod is hinged with the upper end of a vertical push-pull rod; the lower end of the vertical push-pull rod is fixed with a sliding block, and the end head of the sliding block is in sliding connection with an elliptic curve track groove in the cylinder wall of the cylinder; the sliding block is also fixed with one end of a second connecting rod, and the other end of the second connecting rod is fixedly connected with a lantern ring which is sleeved on the photovoltaic panel supporting column in a sliding manner; the photovoltaic panel supporting seat is provided with a first photovoltaic panel mounting frame, a second photovoltaic panel mounting frame and a third photovoltaic panel mounting frame which are sequentially connected in a hooking and buckling manner and provided with push springs; a bracket is also fixed on the base, and a stop lever is arranged on the bracket; the azimuth motor is in signal connection with the microprocessor, and the microprocessor is also respectively connected with the time module and the angle sensor. The invention can simultaneously realize the tracking of the azimuth and the pitching of the sun by using one azimuth motor.
Description
Technical Field
The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic power generation tracking device capable of being rotated, folded and unfolded.
Background
Solar energy is a novel renewable energy source, and is increasingly widely utilized due to the characteristic of environmental friendliness. Solar energy has the characteristics of low energy density, intermittence, random change of spatial distribution and the like, so that higher requirements are put forward on a solar energy utilization technology.
The method has the advantages that the utilization rate of solar energy is improved, the power generation benefit is improved, and the method starts from two aspects, namely firstly, the photovoltaic power generation amount of a unit land area is increased, so that the investment expenditure of land is reduced; with the development of the photovoltaic industry, solar power generation is applied more and more, and besides large photovoltaic power stations built in desert regions, solar power generation is also more and more common in cities. However, the high cost and large floor space of the photovoltaic power generation system always restrict the rapid development of the photovoltaic industry, and particularly, the land cost in urban areas is higher and higher, so that the proportion of the land cost in the cost of the photovoltaic system is higher and higher, and therefore, how to increase the photovoltaic power generation amount of a unit land area to reduce the cost of the photovoltaic system becomes a key for the urbanization development of the photovoltaic industry. The photovoltaic power generation capacity of the unit land area is improved by increasing the number of effective batteries of the unit land area, so that the reduction of the investment expenditure of the land is an important research direction.
Secondly, aiming at the characteristics of solar energy of intermittent and space distribution changing at any time, the photovoltaic power generation device is improved through design, so that the efficiency of receiving sunlight is improved, and the utilization rate of the solar energy is improved; no matter what kind of solar device, when its solar receiver can keep perpendicular with the sun ray all the time, just can improve the solar energy utilization ratio of unit area greatly. In recent years, many studies in this respect have been conducted at home and abroad. For example, professor sumui of hong kong university has studied the relationship between solar angle and energy acceptance rate, and as a result, has found that: by implementing the sun tracking technology, the utilization rate of solar energy is improved by 37.7 percent after the sunlight is vertically incident all the time. It is known that the angle of sunlight on a fixed-angle solar power generation device varies with time during a day, and therefore, the electric energy (i.e., the power generation efficiency) generated by solar energy per unit energy also varies with time at different time intervals of the day. When the solar rays vertically irradiate on the surface of the solar power generation device (such as at noon), the electric energy generated by the solar energy per unit energy is strongest (namely, the power generation efficiency is highest). The larger the inclination angle of the solar ray irradiated on the surface of the solar power generation device, the weaker the electric energy generated by the solar energy per unit energy (i.e. the lower the power generation efficiency, such as morning and evening), so the research and development of the solar tracking device is an important method for improving the solar receiving efficiency. In the existing solar tracking technology, the two-axis automatic tracking research is the most, the azimuth angle and the altitude angle of the sun can be tracked simultaneously, so that sunlight always vertically irradiates on a solar collector, and the solar utilization rate is greatly improved. However, although the two-axis tracking effect is good, the system structure is complex, the mechanical abrasion is large, and the device cost is high, so that a large amount of investment is needed in the aspect of equipment investment, and the improvement of the solar power generation benefit is not facilitated.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a low-cost photovoltaic power generation tracking device capable of rotating, folding and unfolding, and simultaneously realizing the tracking of the direction and the pitching of the sun and the folding function of a photovoltaic panel by using one direction motor in the daytime.
The technical scheme of the invention is as follows: a photovoltaic power generation tracking device capable of rotating, folding and unfolding comprises a base, wherein a rotary table is arranged on the base, an azimuth motor which is connected with the rotary table through an output shaft and provides rotary power for the rotary table is arranged in the base, the rotary table is fixedly connected with the lower end of a photovoltaic plate support column, the upper end of the photovoltaic plate support column is hinged with the lower end of a connecting column through a hinge shaft, and the hinge shaft is parallel to the surface where a photovoltaic plate is located and the horizontal plane; the upper end of the connecting column is fixedly connected with the photovoltaic panel supporting seat, the side wall of the connecting column is fixed with one end of a first connecting rod, the other end of the first connecting rod is hinged with the upper end of a vertical push-pull rod, and the first connecting rod is perpendicular to a hinged shaft; the lower end of the vertical push-pull rod is fixed with the sliding block, the end head of the sliding block is connected with the elliptic curve track groove in a sliding mode, the elliptic curve track groove is formed in the inner side wall of the cylinder wall of the vertically arranged cylinder, and the middle of the elliptic curve track groove is located at the lowest position in the longitudinal direction and faces the north direction; the sliding block is also fixedly connected with one end of a second connecting rod, the other end of the second connecting rod is fixedly connected with a lantern ring which is sleeved on the photovoltaic panel strut in a sliding mode, a guide groove along the longitudinal direction of the photovoltaic panel strut is formed in the photovoltaic panel strut, and a guide block which is matched with the guide groove and is connected with the guide groove in a sliding mode is arranged on the inner side wall of the lantern ring; the photovoltaic panel supporting seat is provided with a first photovoltaic panel mounting frame, a second photovoltaic panel mounting frame and a third photovoltaic panel mounting frame which are sequentially connected in a hooking and buckling manner, the first photovoltaic panel mounting frame, the second photovoltaic panel mounting frame and the third photovoltaic panel mounting frame are respectively provided with a baffle block for playing roles of hooking and limiting along the longitudinal frame of the first photovoltaic panel mounting frame, the left longitudinal frame of the third photovoltaic panel mounting frame is provided with a first fixing seat, the first fixing seat is fixedly connected with the left end of a straight rod, the straight rod is positioned in the horizontal plane and is parallel to the plane where each photovoltaic panel mounting frame is positioned, the right end of the straight rod penetrates through a through hole on the second fixing seat and is in sliding connection with the through hole, the second fixing seat is fixed on the right longitudinal frame of the first photovoltaic panel mounting frame, and a push-extension spring is sleeved on the straight rod positioned between the first, the push-extension spring is used for fully unfolding a first photovoltaic panel mounting frame, a second photovoltaic panel mounting frame and a third photovoltaic panel mounting frame which are sequentially overlapped together through the elastic force of the spring; the photovoltaic panel supporting seat is also provided with sliding chutes which are respectively in sliding connection with the lower ends of the first photovoltaic panel mounting frame, the second photovoltaic panel mounting frame and the third photovoltaic panel mounting frame; a support is further fixed on the base, and a blocking rod is arranged on the support, and is used for applying pushing force to the right side wall of the first photovoltaic panel mounting frame in the process of enabling the surface where the photovoltaic panel mounting frame is located to turn to the northeast direction, so that the first photovoltaic panel mounting frame, the second photovoltaic panel mounting frame and the third photovoltaic panel mounting frame overcome the pushing force of the pushing spring and are sequentially overlapped and folded together; the azimuth motor is in signal connection with the microprocessor through the motor controller, and the microprocessor is in signal connection with the time module and the angle sensor for detecting the azimuth angle value of the rotary table respectively; the microprocessor and the azimuth motor are electrically connected with the power supply module; the microprocessor controls the azimuth motor to rotate through the motor controller; the angle sensor sends the detected azimuth angle value to the microprocessor in real time; the time module is used for providing time information of each day for the microprocessor, the microprocessor controls the azimuth motor to start rotating according to set morning starting time, so that the photovoltaic panel mounting frame starts to rotate from east to west when facing to a northeast direction folding state every morning until the photovoltaic panel mounting frame rotates to set evening ending time, and when the set evening ending time comes, the microprocessor controls the azimuth motor to rotate reversely, so that the photovoltaic panel mounting frame stops rotating from west to east until facing to the northeast and is in a standby state.
The stop rod is an arc-shaped rod in the horizontal plane, wherein one end of the arc-shaped rod is fixedly connected with the support, and the curvature radius of the arc-shaped rod is gradually reduced from the rod length direction to the other end of the arc-shaped rod.
The right side wall of the first photovoltaic panel installation frame is provided with a roller, the axis of the roller is along the longitudinal direction of the right side wall of the first photovoltaic panel installation frame, and the roller is in contact with the blocking rod, so that the blocking rod applies pushing force to the right side wall of the first photovoltaic panel installation frame through the roller.
The part of the elliptic curve track groove on the cylinder wall in the southwest direction is an arc groove in the horizontal plane.
The set morning starting time is 4 am, the set evening ending time is 19 am, and the microprocessor controls the azimuth motor to rotate, so that the photovoltaic panel mounting frame starts to rotate at a constant speed from east to west when the photovoltaic panel mounting frame faces the northeast direction in the morning folding state, the photovoltaic panel mounting frame is unfolded from the folding state in the process of rotating from the northeast direction to the righteast direction, and the photovoltaic panel mounting frame is folded from the unfolding state in the process of rotating from the righteast direction to the northeast direction.
When the set end time of each evening comes, the microprocessor controls the azimuth motor to rotate reversely at a constant speed, so that the photovoltaic panel mounting frame rotates from the west to the east until the photovoltaic panel mounting frame faces to the northeast, stops rotating and is in a standby state, wherein the whole time from the west to the east until the photovoltaic panel mounting frame faces to the northeast is set to be 1-2 hours.
The microprocessor is a PLC or MSP430 singlechip; the angle sensor adopts a photoelectric encoder or a magnetoelectric encoder to carry out angle detection, and is arranged on the photovoltaic panel strut; the azimuth motor is a stepping motor; the cylinder wall is fixed on the base through a fixing frame.
The invention has the beneficial effects that: compared with a complex sun tracking photovoltaic power generation mechanism in the prior art, the rotary folding and unfolding photovoltaic power generation tracking device with high reliability and low cost can simultaneously realize tracking of the sun direction and the sun pitch within the daytime of one day by only using one direction motor; meanwhile, the photovoltaic panel can be automatically folded and unfolded, and the photovoltaic panel is prevented from being covered by dust in long-term work. The sliding block is guided by the elliptic curve track groove, so that the sliding block pushes and pulls the vertical push-pull rod, and the pitch angle can be automatically adjusted in the process of azimuth rotation, wherein when the sliding block is just positioned at the lowest point of the elliptic curve track groove, the pitch angle is the largest and just corresponds to the state that the sun is at the south noon and the largest sun pitch angle at the moment.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the rotary power part of the present invention;
fig. 3 is a schematic top view of a photovoltaic panel mounting frame of the present invention.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
Referring to fig. 1 and 2, an embodiment of the invention provides a photovoltaic power generation tracking device capable of rotating, folding and unfolding, which comprises a base 1, wherein a turntable 14 is arranged on the base 1, an azimuth motor 13, an output shaft of which is connected with the turntable 14, is arranged in the base 1 and provides rotating power for the turntable 14, the turntable 14 is fixedly connected with the lower end of a photovoltaic panel support column 2, the upper end of the photovoltaic panel support column 2 is hinged with the lower end of a connecting column 15 through a hinge shaft 3, and the hinge shaft 3 is parallel to the surface where a photovoltaic panel is located and the horizontal plane; the upper end of the connecting column 15 is fixedly connected with a photovoltaic panel supporting seat 17, the side wall of the connecting column 15 is fixed with one end of a first connecting rod 10, the other end of the first connecting rod 10 is hinged with the upper end of a vertical push-pull rod 7, and the first connecting rod 10 is perpendicular to a hinged shaft 3; the lower end of the vertical push-pull rod 7 is fixed with the sliding block 9, the end head of the sliding block 9 is connected with the elliptic curve track groove 6 in a sliding mode, the elliptic curve track groove 6 is formed in the inner side wall of the cylinder wall 11 which is vertically arranged, and the middle of the elliptic curve track groove 6 is located at the lowest position in the longitudinal direction and faces the north direction; the sliding block 9 is also fixedly connected with one end of a second connecting rod 12, the other end of the second connecting rod 12 is fixedly connected with a lantern ring 8 which is sleeved on the photovoltaic panel strut 2 in a sliding mode, a guide groove 5 which is arranged along the longitudinal direction of the photovoltaic panel strut 2 is formed in the photovoltaic panel strut 2, and a guide block 4 which is matched with the guide groove 5 and is connected with the guide groove in a sliding mode is arranged on the inner side wall of the lantern ring 8; a first photovoltaic panel installation frame 21, a second photovoltaic panel installation frame 22 and a third photovoltaic panel installation frame 23 which are sequentially connected in a hooking and buckling manner are arranged on the photovoltaic panel supporting seat 17, referring to fig. 3, the first photovoltaic panel installation frame 21, the second photovoltaic panel installation frame 22 and the third photovoltaic panel installation frame 23 are respectively provided with a stopper 28 for hanging and limiting along the longitudinal frame thereof, the left longitudinal frame of the third photovoltaic panel installation frame 23 is provided with a first fixing seat 24, the first fixing seat 24 is fixedly connected with the left end of a straight rod 27, the straight rod 27 is positioned in the horizontal plane and is parallel to the plane where each photovoltaic panel installation frame is positioned, the right end of the straight rod 27 penetrates through a through hole on the second fixing seat 26 and is in sliding connection with the through hole, the second fixing seat 26 is fixed on the right longitudinal frame of the first photovoltaic panel installation frame 21, a straight rod 27 positioned between the first fixing seat 24 and the second fixing seat 26 is sleeved with a push-extension spring 25, the push-extension spring 25 is used for fully unfolding the first photovoltaic panel mounting frame 21, the second photovoltaic panel mounting frame 22 and the third photovoltaic panel mounting frame 23 which are overlapped together in sequence through the spring force; the photovoltaic panel supporting seat 17 is further provided with a sliding chute 18 which is respectively connected with the lower ends of the first photovoltaic panel mounting frame 21, the second photovoltaic panel mounting frame 22 and the third photovoltaic panel mounting frame 23 in a sliding manner; a support 16 is further fixed on the base 1, and a stopper rod 20 which is folded together in sequence by applying a pushing force to the right side wall of the first photovoltaic panel mounting frame 21 in the process of rotating the surface on which the photovoltaic panel mounting frame is located to the northeast direction is arranged on the support 16, so that the first photovoltaic panel mounting frame 21, the second photovoltaic panel mounting frame 22 and the third photovoltaic panel mounting frame 23 overcome the pushing force of the pushing spring 25; the azimuth motor 13 is in signal connection with a microprocessor through a motor controller, and the microprocessor is also in signal connection with a time module and an angle sensor for detecting an azimuth angle value of the rotary table 14 respectively; the microprocessor and the azimuth motor 13 are electrically connected with the power supply module; the microprocessor controls the azimuth motor 13 to rotate through the motor controller; the angle sensor sends the detected azimuth angle value to the microprocessor in real time; the time module is used for providing time information of each day for the microprocessor, the microprocessor controls the orientation motor 13 to start rotating according to the set start time of each morning, so that the photovoltaic panel mounting frame starts to rotate from east to west when facing to a folding state of northeast direction of each morning until the photovoltaic panel mounting frame rotates to the set end time of each evening, and when the set end time of each evening comes, the microprocessor controls the orientation motor to rotate reversely, so that the photovoltaic panel mounting frame rotates from west to east until facing to northeast, stops rotating and is in a standby state.
Compared with a complex sun tracking photovoltaic power generation mechanism in the prior art, the sun tracking system can simultaneously realize the tracking of the azimuth and the pitching of the sun by only using one azimuth motor within the daytime time of one day; meanwhile, the photovoltaic panel can be automatically folded and unfolded, and the photovoltaic panel is prevented from being covered by dust in long-term work. The sliding block is guided by the elliptic curve track groove, so that the sliding block pushes and pulls the vertical push-pull rod, and the pitch angle can be automatically adjusted in the process of azimuth rotation, wherein when the sliding block is just positioned at the lowest point of the elliptic curve track groove, the pitch angle is the largest and just corresponds to the state that the sun is at the south noon and the south and the largest sun pitch angle at the moment, and therefore, the solar power generation tracking device is very high in cost performance.
Further, the stop lever 20 is an arc-shaped lever in a horizontal plane, wherein one end of the arc-shaped lever is fixedly connected with the bracket 16, and the curvature radius of the arc-shaped lever gradually decreases or uniformly decreases along the length direction of the lever to the other end (or adopts other gradually decreasing modes, and the curvature radius gradually decreases, that is, the curvature gradually increases, so as to gradually overlap the three photovoltaic panel mounting frames under the action of gradually increasing blocking force of the arc-shaped lever).
Further, a roller 19 is provided on the right side wall of the first photovoltaic panel mounting frame 21, the axis of the roller 19 is along the longitudinal direction of the right side wall of the first photovoltaic panel mounting frame 21, and the roller 19 is in contact with the blocking rod 20, so that the blocking rod 20 applies a pressing force to the right side wall of the first photovoltaic panel mounting frame 21 through the roller 19. The friction force can be reduced by the interaction of the roller 19 and the lever 20.
Further, the part of the elliptic curve track groove 6 on the cylinder wall 11, which is positioned in the southwest direction, is an arc groove positioned in a horizontal plane. The reason why the arc groove corresponds to the orientation corresponding to the folding process or the unfolding process of each photovoltaic panel mounting frame on which the photovoltaic panel is mounted (i.e., the folding rotation process facing from the east to the north east or the unfolding rotation process facing from the north to the east) is that the arc groove is located in the horizontal plane is not necessary to change the pitch angle of the photovoltaic panel at this time.
Further, the set start time of each morning is 4 am, the set end time of each evening is 19 am, and the microprocessor controls the azimuth motor 13 to rotate, so that the photovoltaic panel installation frame starts to rotate at a constant speed from east to west when facing to a northeast direction in a folded state every morning, wherein the photovoltaic panel installation frame is in a process of unfolding from the folded state when facing to the northeast direction, and the photovoltaic panel installation frame is in a process of folding from the unfolded state when facing to the northeast direction.
Further, when the set end time of each evening comes, the microprocessor controls the azimuth motor to rotate reversely at a constant speed, so that the photovoltaic panel mounting frame rotates from west to east until the photovoltaic panel mounting frame faces to the northeast, stops rotating and is in a standby state, wherein the whole time from west to east until the photovoltaic panel mounting frame faces to the northeast is set to be 1-2 hours.
Further, the microprocessor is a PLC or MSP430 single chip microcomputer; the angle sensor adopts a photoelectric encoder or a magnetoelectric encoder to carry out angle detection, and is arranged on the photovoltaic panel strut 2; the azimuth motor 13 is a stepping motor; the cylindrical wall 11 is fixed on the base 1 by a fixing frame 29.
In summary, the embodiment of the present invention provides a reliable, low-cost, rotating, folding and unfolding photovoltaic power generation tracking device, which can simultaneously track the sun's azimuth and pitch within the daytime of one day by using only one azimuth motor, and can automatically fold and unfold a photovoltaic panel, thereby preventing the photovoltaic panel from being covered by dust during long-term operation, compared with the complex sun tracking photovoltaic power generation mechanism in the prior art. The sliding block is guided by the elliptic curve track groove, so that the sliding block pushes and pulls the vertical push-pull rod, and the pitch angle can be automatically adjusted in the process of azimuth rotation, wherein when the sliding block is just positioned at the lowest point of the elliptic curve track groove, the pitch angle is the largest and just corresponds to the state that the sun is at the south noon and the largest sun pitch angle at the moment.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (6)
1. The photovoltaic power generation tracking device capable of being rotated, folded and unfolded comprises a base (1) and is characterized in that a rotary table (14) is arranged on the base (1), a position motor (13) which is connected with the rotary table (14) through an output shaft and provides rotating power for the rotary table (14) is arranged in the base (1), the rotary table (14) is fixedly connected with the lower end of a photovoltaic plate support column (2), the upper end of the photovoltaic plate support column (2) is hinged with the lower end of a connecting column (15) through a hinged shaft (3), and the hinged shaft (3) is parallel to the surface where the photovoltaic plate is located and the horizontal plane; the upper end of the connecting column (15) is fixedly connected with the photovoltaic panel supporting seat (17), the side wall of the connecting column (15) is fixed with one end of the first connecting rod (10), the other end of the first connecting rod (10) is hinged with the upper end of the vertical push-pull rod (7), and the first connecting rod (10) is perpendicular to the hinged shaft (3); the lower end of the vertical push-pull rod (7) is fixed with the sliding block (9), the end head of the sliding block (9) is connected with the elliptic curve track groove (6) in a sliding mode, the elliptic curve track groove (6) is formed in the inner side wall of the vertically arranged cylinder wall (11), and the middle of the elliptic curve track groove (6) is located at the lowest position in the longitudinal direction and faces the north direction; the sliding block (9) is also fixedly connected with one end of a second connecting rod (12), the other end of the second connecting rod (12) is fixedly connected with a lantern ring (8) which is sleeved on the photovoltaic panel strut (2) in a sliding mode, a guide groove (5) which is arranged along the longitudinal direction of the photovoltaic panel strut (2) is formed in the photovoltaic panel strut (2), and a guide block (4) which is matched with the guide groove (5) and is connected with the guide groove in a sliding mode is arranged on the inner side wall of the lantern ring (8); the photovoltaic panel supporting seat is characterized in that a first photovoltaic panel mounting frame (21), a second photovoltaic panel mounting frame (22) and a third photovoltaic panel mounting frame (23) which are sequentially connected in a hooking and buckling manner are arranged on the photovoltaic panel supporting seat (17), the first photovoltaic panel mounting frame (21), the second photovoltaic panel mounting frame (22) and the third photovoltaic panel mounting frame (23) are respectively provided with a stopper (28) which plays roles of hooking and limiting along the longitudinal frame, a first fixing seat (24) is arranged on the left longitudinal frame of the third photovoltaic panel mounting frame (23), the first fixing seat (24) is fixedly connected with the left end of a straight rod (27), the straight rod (27) is positioned in the horizontal plane and is parallel to the plane where the photovoltaic panel mounting frames are positioned, the right end of the straight rod (27) penetrates through holes in the second fixing seat (26) and is slidably connected with the through holes, the second fixing seat (26) is fixed on the right longitudinal frame of the first photovoltaic panel mounting frame (21), a push spring (25) is sleeved on the straight rod (27) positioned between the first fixing seat (24) and the second fixing seat (26), and the push spring (25) is used for unfolding the first photovoltaic panel mounting frame (21), the second photovoltaic panel mounting frame (22) and the third photovoltaic panel mounting frame (23) which are sequentially overlapped together through spring force; the photovoltaic panel supporting seat (17) is further provided with a sliding chute (18) which is respectively connected with the lower ends of the first photovoltaic panel mounting frame (21), the second photovoltaic panel mounting frame (22) and the third photovoltaic panel mounting frame (23) in a sliding manner; a support (16) is further fixed on the base (1), and in the process that the surface where each photovoltaic panel mounting frame is located is turned to the northeast direction, a blocking rod (20) which is used for applying pushing force to the right side wall of the first photovoltaic panel mounting frame (21) so as to enable the first photovoltaic panel mounting frame (21), the second photovoltaic panel mounting frame (22) and the third photovoltaic panel mounting frame (23) to overcome the pushing force of the pushing spring (25) and sequentially overlap and fold together is arranged on the support (16);
the azimuth motor (13) is in signal connection with the microprocessor through the motor controller, and the microprocessor is also in signal connection with the time module and the angle sensor for detecting the azimuth angle value of the rotary table (14) respectively; the microprocessor and the azimuth motor (13) are electrically connected with the power supply module; the microprocessor controls the azimuth motor (13) to rotate through the motor controller; the angle sensor sends the detected azimuth angle value to the microprocessor in real time; the time module is used for providing time information of each day for the microprocessor, the microprocessor controls the azimuth motor (13) to start rotating according to the set morning starting time, so that each photovoltaic panel installation frame starts to rotate from east to west from the folded state facing to the northeast direction to the set morning starting time until the folded state rotates to the set evening ending time, and when the set evening ending time comes, the microprocessor controls the azimuth motor to reversely rotate, so that each photovoltaic panel installation frame rotates from west to east until the folded state faces to the northeast direction, stops rotating and is in a standby state;
the set starting time of each morning is 4 am, the set ending time of each evening is 19 am, and the microprocessor controls the azimuth motor (13) to rotate, so that each photovoltaic panel mounting frame starts to rotate at a constant speed from east to west when the photovoltaic panel mounting frame faces to the northeast direction in each morning in a folded state, wherein each photovoltaic panel mounting frame is in the process of unfolding from the folded state when the photovoltaic panel mounting frame faces to the northeast direction in the process of rotating to the righteast direction; each photovoltaic panel installation frame is in the in-process of folding from the state of expanding in the process of rotating to the northeast direction facing the east direction.
2. The photovoltaic tracking device for rotational folding and unfolding according to claim 1, wherein the stop bar (20) is an arc bar in a horizontal plane, wherein one end of the arc bar is fixedly connected to the bracket (16), and the curvature radius of the arc bar gradually decreases along the length direction of the bar until the other end of the arc bar.
3. A photovoltaic power generation tracking device for rotary folding and unfolding according to claim 1 or 2, wherein the right side wall of the first photovoltaic panel mounting frame (21) is provided with a roller (19), the axis of the roller (19) is along the longitudinal direction of the right side wall of the first photovoltaic panel mounting frame (21), the roller (19) is in contact with the stopper rod (20), so that the stopper rod (20) applies a pushing force to the right side wall of the first photovoltaic panel mounting frame (21) through the roller (19).
4. The photovoltaic power generation tracking device capable of being folded and unfolded in a rotating mode according to claim 2, wherein the part, located in the southwest direction, of the elliptic curve track groove (6) on the cylinder wall (11) is an arc groove located in a horizontal plane.
5. The photovoltaic power generation tracking device for rotary folding unfolding according to claim 1, wherein when the set end time of each evening comes, the microprocessor controls the azimuth motor (13) to rotate at a constant speed in a reverse direction, so that each photovoltaic panel mounting frame rotates from west to east until facing to northeast, stops rotating and is in a standby state, wherein the total time from west to east until northeast facing to stop rotating is set to 1-2 hours.
6. The tracking device for photovoltaic power generation of rotary folding unfolding as claimed in claim 1, wherein said microprocessor is a PLC controller or MSP430 single chip microcomputer; the angle sensor adopts a photoelectric encoder or a magnetoelectric encoder to carry out angle detection, and is arranged on the photovoltaic panel strut (2); the azimuth motor (13) is a stepping motor; the cylinder wall (11) is fixed on the base (1) through a fixing frame (29).
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| CN112054754A (en) * | 2019-06-06 | 2020-12-08 | 佛山市南海区光伏铝业有限公司 | Aluminum alloy ground photovoltaic support system |
| CN110798129A (en) * | 2019-12-07 | 2020-02-14 | 杨帆 | Photovoltaic power generation system |
| CN113783517B (en) * | 2021-10-18 | 2024-01-30 | 山东敬爱新能源有限公司 | Folding and unfolding type photovoltaic power generation device |
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| EP3375089A4 (en) * | 2015-11-13 | 2019-11-06 | Robertson, Daniel L. | Modular photovoltaic light and power cube |
| CN206211929U (en) * | 2016-11-25 | 2017-05-31 | 厦门智同方达科技有限公司 | Solar energy tracking support rotating actuator |
| CN206962749U (en) * | 2017-07-03 | 2018-02-02 | 肖丽容 | A kind of concealed new energy solar cell power generation device |
| CN107769712B (en) * | 2017-11-15 | 2019-02-15 | 新乡学院 | A kind of roof solar photovoltaic power generation apparatus |
| CN108134569A (en) * | 2018-02-06 | 2018-06-08 | 江苏峰谷源储能技术研究院有限公司 | A kind of steering workbench of dislocation generation equipment |
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