Wind resistant rotatable photovoltaic mount

Abstract

The application relates to the technical field of photovoltaic support, in particular to a wind-resistant rotatable photovoltaic support. The photovoltaic support comprises a base, a stand, a connecting piece, a brake mechanism, a first transmission rod, a second transmission rod, a rotating shaft, a fixing rod and cross cable-stayed lines. The stand is provided with the stand on the top of the base, the connecting piece is installed on the top of the stand, the upper part of the connecting piece is embedded with the rotating shaft, one end of the second transmission rod is fixed to the rotating shaft, the other end is hingedly connected with the first transmission rod, the first transmission rod and the brake mechanism are hingedly connected, and the brake mechanism drives the rotating shaft to rotate through the transmission rod; the fixing rod and the cross two cable-stayed lines are installed between every two corresponding stands, so that the stands are connected with each other to form a whole. The application improves the power generation efficiency, effectively improves the stability and wind resistance of the inclined single-axis photovoltaic support, solves the problem that the photovoltaic support is easily damaged, and greatly reduces the operation and maintenance difficulty and the labor cost.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, specifically to a wind-resistant rotatable photovoltaic support. Background Technology

[0002] With the rapid development of the new energy industry, the construction of large-scale photovoltaic power plants is increasing day by day. At present, the photovoltaic brackets in the construction of photovoltaic power plants are usually fixed. Their characteristic is that an optimal tilt angle is selected according to different geographical locations, and the angle remains unchanged after installation. Therefore, it is impossible to ensure that the incident sunlight hits the photovoltaic modules perpendicularly at all times, thereby reducing the amount of solar radiation absorbed by the modules and seriously affecting the power generation efficiency of the photovoltaic modules.

[0003] Inclined single-axis tracking photovoltaic (PV) brackets, such as those described in Chinese patents CN207488834U and CN110737286A, differ from fixed PV brackets in that their rotating axis rotates from east to west while maintaining a fixed tilt angle to the south. The rotating axis revolves around the solar azimuth angle to keep the PV modules perpendicular to the incident sunlight, thus maximizing solar energy absorption. However, this type of inclined single-axis tracking PV bracket suffers from low stability and poor wind resistance. In areas with strong winds, it is highly susceptible to damage, leading to significant maintenance difficulties and high labor costs.

[0004] To address the aforementioned issues, structural innovation is needed based on existing photovoltaic support structures. Therefore, a wind-resistant, rotatable photovoltaic support structure is proposed. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a wind-resistant, rotatable photovoltaic support structure, the specific structure of which is as follows:

[0006] A wind-resistant rotatable photovoltaic support includes: a base, columns, connectors, a braking mechanism, a first transmission rod, a second transmission rod, multiple rotating shafts, a fixed rod, and guy wires; wherein each base has a column fixed to its top, the top side of the column is fixedly connected to the lower part of the connector, the upper part of the connector is movably connected to the rotating shaft, multiple columns with equal spacing and decreasing height are connected to one rotating shaft, the multiple rotating shafts are arranged in parallel, and the columns connected to the multiple rotating shafts are parallel to each other in pairs; the lower end of the multiple rotating shafts is fixedly connected to multiple second transmission rods, the multiple second transmission rods are hinged to the same first transmission rod, and the center of the first transmission rod is hinged to the braking mechanism; a fixed rod and two guy wires on the same plane are fixed between two parallel columns, the two ends of each guy wire are fixed to the upper side of one column and the lower side of the other column, and the two guy wires intersect at the midpoint.

[0007] Furthermore, the connector comprises, from top to bottom, a circular retainer and a lower part of the connector. The lower part of the connector is connected to the column. A groove is formed on the inner circumference of the circular retainer. A circular fixing device made of rubber is embedded in the groove. The diameter of the fixing device is larger than the edge diameter of the groove and smaller than the inner diameter of the groove. A through hole is formed in the center of the fixing device. The size of the through hole is not larger than the diameter of the rotating shaft.

[0008] Furthermore, the lower parts of the ring retainer and the connector are not on the same vertical plane.

[0009] Furthermore, the braking mechanism includes a drive motor, an active reducer, a driven reducer, and a rotating rod. The drive motor is connected in sequence to the active reducer and the driven reducer. The driven reducer is a rotating vertical disc. The rotating rod is connected to the center of the driven reducer. The rotation direction of both the rotating rod and the driven reducer is along a vertical plane. The center of the first transmission rod is hinged to the rotating rod.

[0010] Furthermore, three columns with equal spacing and decreasing height are connected to one of the rotating shafts.

[0011] This invention selects a fixed optimal tilt angle for the rotating shaft based on different geographical locations. The number of columns on the rotating shaft decreases from north to south. The rotating shaft is controlled with high precision by a braking mechanism, which can be controlled manually or by timed uniform rotation. This allows the photovoltaic modules installed on the rotating shaft to rotate from east to west following the incident sunlight. The photovoltaic modules are kept as perpendicular to the incident sunlight as possible, maximizing the absorption of solar radiation and improving the power generation efficiency of the photovoltaic modules.

[0012] In addition, this utility model improves the stability of the inclined single-axis photovoltaic support by adding cross diagonal guy wires and fixing rods between every two independent inclined single-axis photovoltaic support brackets, so that the brackets are connected to each other and form a whole. This solves the problem of photovoltaic support brackets being easily damaged, greatly reduces the difficulty of operation and maintenance and labor costs, and is applicable to large-scale photovoltaic power plants built in flat terrain, low vegetation coverage Gobi and desert areas, and areas with frequent sandstorms. Attached Figure Description

[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0014] Figure 1 A schematic diagram of the present invention in the embodiments is shown;

[0015] Figure 2 It shows Figure 1 A schematic diagram of the connection structure between the base and the column;

[0016] Figure 3 It shows Figure 1 Schematic diagram of the middle connector;

[0017] Figure 4 It shows Figure 3 Side view of the connecting component;

[0018] Figure 5 It shows Figure 1 Schematic diagram of the braking mechanism;

[0019] Figure 6 It shows Figure 1 Schematic diagram of the first transmission rod;

[0020] Figure 7 It shows Figure 1 Schematic diagram of the second transmission rod;

[0021] Figure 8 A schematic diagram showing the connection between the braking mechanism and the photovoltaic support is shown;

[0022] Figure 9 A schematic diagram of the connection structure between the fixed rod, the guy wire, and the photovoltaic support is shown.

[0023] Figure 10 A schematic diagram of the structure of the present invention in use is shown in the embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Photovoltaic module; 2. Base; 3. Column; 4. Connector; 401. Circular ring retainer; 402. Fixing device; 403. Lower part of connector; 5. Braking mechanism; 501. Drive motor; 502. Active reducer; 503. Driven reducer; 504. Rotating rod; 6. First transmission rod; 7. Second transmission rod; 8. Rotating shaft; 9. Fixing rod; 10. Guy wire. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0027] In one embodiment, such as Figures 1-10 As shown, a wind-resistant rotatable photovoltaic support includes: a base 2, a column 3, a connector 4, a braking mechanism 5, a first transmission rod 6, a second transmission rod 7, two rotating shafts 8, a fixing rod 9, and a guy wire 10.

[0028] Each base 2 has a fixed column 3 at its top. The top side of the column 3 is fixedly connected to the lower part of the connector 4. The upper part of the connector 4 is movably connected to the rotating shaft 8. Three columns 3 with equal spacing and decreasing height are connected to one rotating shaft 8. Two rotating shafts 8 are set in parallel, and the columns 3 connected to the two rotating shafts 8 are parallel and corresponding to each other. When installing the bracket, the height of the column 3 decreases from north to south, so that the rotating shaft 8 forms an optimal tilt angle with the ground. At the same time, the column 3 plays a role in fixing and supporting the rotating shaft 8.

[0029] The connector 4, from top to bottom, includes a circular retainer 401 and a lower connector 403. The circular retainer 401 and the lower connector 403 are not on the same plane, i.e., they form a certain angle (based on the optimal tilt angle design between the rotating shaft 8 and the ground, the angle between the circular retainer 401 and the horizontal plane is the same as this optimal tilt angle). This facilitates the simultaneous passage of multiple connectors 4 through the rotating shaft 8 when connecting columns of different heights. The lower connector 403 is connected to the column 3. A groove (not shown) is formed on the inner circumference of the circular retainer 401. A circular fixing device 402 made of rubber is embedded in the groove. The diameter of the fixing device 402 is larger than the edge diameter of the groove but smaller than the inner diameter of the groove, allowing the fixing device 402 to slide smoothly inside the retainer without falling off. A sliding layer is formed between the circular retainer 401 and the fixing device 402, and lubricant is added to the sliding layer to reduce friction and improve the service life and operating efficiency of the connector 4. The fixing device 402 has a square through hole in the center. The size of the through hole is the same as that of the rotating shaft 8, that is, the same cross-section, so that the rotating shaft 8 is embedded in the fixing device 402 and the rotating shaft 8 and the fixing device 402 do not move relative to each other. Thus, when the column is fixed, the braking mechanism 5 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the fixing device 402 to slide smoothly inside the retainer 401.

[0030] The lower ends of the two rotating shafts 8 are fixedly connected to one end of the two second transmission rods 7, and the other ends of the two second transmission rods 7 are respectively connected to the same first transmission rod 6 by hinges. The center of the first transmission rod 6 is connected to the braking mechanism 5 by hinges. The braking mechanism 5 includes a drive motor 501, an active reducer 502, a driven reducer 503, and a rotating rod 504. The drive motor 501 is connected to the active reducer 502 and the driven reducer 503 in sequence. The driven reducer 503 is a rotating vertical wheel. The rotating rod 504 is connected to the center of the driven reducer 503. The rotation direction of the rotating rod 504 and the driven reducer 503 is both along the vertical plane. The center of the first transmission rod 6 is connected to the rotating rod 504 by hinges. By adding an active reducer 502 to the drive motor 501, the motor's rotational speed is reduced. Further reduction in speed is achieved through a driven reducer 503, thereby increasing the mechanical output force of the rotating rod 504 connected to the driven reducer 503 and causing the rotating rod 504 to rotate at a low speed. This enables the braking mechanism 5 to achieve high-performance, high-precision control of the rotating shaft 8. In use, the front end of the rotating rod 504 is hinged to the first transmission rod 6, which in turn is hinged to the second transmission rod 7. The other end of the second transmission rod 7 is fixed to the rotating shaft 8. This allows the first transmission rod 6 to move horizontally left and right under the force of the rotating rod 504, while the second transmission rod 7 rotates stably under the control of the first transmission rod 6, driving the rotating shaft 8 to rotate from east to west following the sunlight. A timed solenoid valve is installed in the circuit of the braking mechanism 5 to control the braking mechanism 5 to rotate by the same angle at fixed intervals (e.g., 1 minute), ensuring that the rotating shaft 8 rotates following the sunlight. Alternatively, the angle of the braking mechanism 5 can be manually adjusted to adapt to the movement of the sunlight.

[0031] A fixing rod 9 and two diagonal guy wires 10 on the same plane are fixed between two parallel and corresponding columns 3. The two ends of each diagonal guy wire 10 are fixed to the upper side of one column 3 and the lower side of the other column 3, respectively, and the two diagonal guy wires 10 intersect at the midpoint. The fixing rod 9 serves to fix and support the two supports. Through the cooperation of the intersecting diagonal guy wires 10 and the fixing rod 9, the supports are connected to each other, so that every two independent inclined single-axis photovoltaic supports form a whole, improving the stability and wind resistance of the inclined single-axis photovoltaic supports, thereby adapting to complex geographical environments.

[0032] During use, the rotating shaft 8 is tilted at an optimal angle based on different geographical locations, and the angle remains fixed after installation. Photovoltaic modules 1 can be installed on the rotating shaft 8, and the photovoltaic modules 1 rotate with the shaft 8, ensuring that the photovoltaic modules 1 are always perpendicular to the incident sunlight. This maximizes the absorption of solar radiation by the photovoltaic modules and improves their power generation efficiency.

[0033] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A wind-resistant rotatable photovoltaic support, characterized in that, include: The base (2), column (3), connector (4), braking mechanism (5), first transmission rod (6), second transmission rod (7), multiple rotating shafts (8), fixed rod (9), and inclined cable (10); wherein each base (2) has a column (3) fixed to its top, the top side of the column (3) is fixedly connected to the lower part of the connector (4), the upper part of the connector (4) is movably connected to the rotating shaft (8), multiple columns (3) with equal spacing and decreasing height are connected to one rotating shaft (8), the multiple rotating shafts (8) are arranged in parallel, and the columns (3) connected to the multiple rotating shafts (8) are... 3) Parallel correspondence between each other; the lower end of the multiple rotating shafts (8) is fixedly connected to multiple second transmission rods (7), and the multiple second transmission rods (7) are simultaneously connected to the same first transmission rod (6) by hinges. The center of the first transmission rod (6) is connected to the braking mechanism (5) by hinges. The fixed rod (9) and two inclined lines (10) on the same plane are fixed between two parallel corresponding columns (3). The two ends of each inclined line (10) are fixed to the upper side of one column (3) and the lower side of the other column (3), and the two inclined lines (10) intersect at the midpoint.

2. The wind-resistant rotatable photovoltaic support according to claim 1, characterized in that, The connector (4) includes, from top to bottom, a ring retainer (401) and a lower part of the connector (403). The lower part of the connector (403) is connected to the column (3). The inner circumference of the ring retainer (401) is provided with a groove. A circular fixing device (402) made of rubber is embedded in the groove. The diameter of the fixing device (402) is larger than the edge diameter of the groove and smaller than the inner diameter of the groove. A through hole is provided in the center of the fixing device (402). The size of the through hole is not larger than the diameter of the rotating shaft (8).

3. The wind-resistant rotatable photovoltaic support according to claim 2, characterized in that, The ring retainer (401) and the lower part of the connector (403) are not on the same vertical plane.

4. The wind-resistant rotatable photovoltaic support according to claim 1, characterized in that, The braking mechanism (5) includes a drive motor (501), an active reducer (502), a driven reducer (503), and a rotating rod (504). The drive motor (501) is connected to the active reducer (502) and the driven reducer (503) in sequence. The driven reducer (503) is a rotating vertical wheel. The rotating rod (504) is connected to the center of the driven reducer (503). The rotation direction of the rotating rod (504) and the driven reducer (503) is both along the vertical plane. The center of the first transmission rod (6) is connected to the rotating rod (504) by a hinge.

5. A wind-resistant rotatable photovoltaic support according to claim 1, characterized in that, Three columns (3) with equal spacing and decreasing height are connected to one of the rotating shafts (8).

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