Two-dimensional adjustable windproof photovoltaic support

Abstract

The utility model relates to a two-dimensional adjustable windproof photovoltaic support, the bottom end of a stand column is vertically fixed on the ground, and the top end of the stand column is connected with the central position of an oblique beam through a rotating structure; four side edges, namely a first side edge, a second side edge, a third side edge and a fourth side edge, are defined on the bottom surface, facing the ground, of the assembly tray in sequence, and the first side edge and the third side edge as well as the second side edge and the fourth side edge form two relatively parallel side edge groups respectively; the first side edge and the third side edge are each provided with a first arc-shaped beam, and the two ends of the second arc-shaped beam are fixed to the center of the first side edge and the center of the third side edge respectively; the two ends of the oblique beam penetrate through the semicircular spaces of the two first arc-shaped beams and then are connected with the second arc-shaped beam, and the connecting position is close to the end of the second arc-shaped beam. A photovoltaic module is embedded in the surface, facing the sky, of the module tray. The wind power generation device is two-dimensionally adjustable, meets two working conditions of strong wind and non-strong wind, can resist high wind speed, and improves the power generation efficiency of the photovoltaic panel.

Description

Technical Field

[0001] This utility model relates to a two-dimensional adjustable windproof photovoltaic support, belonging to the field of photovoltaic power generation. Background Technology

[0002] Photovoltaic power generation systems, as a clean energy technology, have been widely used in recent years. However, as a crucial structure supporting photovoltaic modules, the stability and durability of photovoltaic support systems directly affect the overall system's operational efficiency and safety. Strong winds are one of the main natural factors affecting the stability of photovoltaic support systems, especially in windy environments such as coastal areas and high-altitude regions, where the impact of strong winds on photovoltaic support systems is particularly significant.

[0003] The impact of strong winds on photovoltaic (PV) mounting systems is mainly reflected in the following aspects: 1. Structural deformation and damage: Strong winds act on the surface of PV modules, generating significant wind loads, which may cause deformation or even damage to the mounting structure. Especially in areas with high wind speeds, components such as support rods and connectors are prone to bending and breakage. 2. Vibration and fatigue: Vibration caused by strong winds can lead to fatigue damage to the mounting structure. Long-term wind vibration may loosen the connectors, reducing the overall stability of the structure and even causing partial or complete collapse. 3. Overturning risk: Strong winds may generate overturning moments on PV mounting systems, especially in cases of unreasonable foundation design or unstable ground. This can cause the mounting system to overturn, resulting in damage to PV modules or system failure. 4. Module detachment: Under strong winds, the connection between PV modules and the mounting system may loosen, causing modules to detach. This not only affects power generation efficiency but may also threaten the surrounding environment and personnel safety.

[0004] The currently widely used solution for dealing with strong winds using single-axis photovoltaic (PV) supports is to adjust the PV modules to be parallel to the ground. In practice, this solution has some effect, but it cannot completely prevent damage to the PV modules from strong winds. The damage is caused by the vortices generated by strong winds passing through the PV array, both at the array's edges and within the array itself. These vortices render the windproof solution partially ineffective. To mitigate the damage caused by strong winds, several related designs have been developed. Application CN117375502A proposes a windproof PV support that reduces wind load by leveling the PV panels and lowering their height. Application CN112928971A proposes a wind-resistant and earthquake-resistant PV support that increases stability by installing mass spheres and drag devices within the support structure.

[0005] However, these applications cannot completely solve the problems caused by strong winds to traditional photovoltaic (PV) mounting systems, especially the vortex problem. Therefore, it is necessary to propose a new type of windproof PV mounting system that can not only withstand high wind speeds but also improve the power generation efficiency of PV panels. Utility Model Content

[0006] This invention provides a two-dimensional adjustable windproof photovoltaic support structure. The entire structure is two-dimensionally adjustable, which can be adjusted to meet both strong wind and non-strong wind conditions. It can not only withstand high wind speeds, but also improve the power generation efficiency of photovoltaic panels.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A two-dimensional adjustable windproof photovoltaic support structure includes a support body, which comprises a component tray, photovoltaic components, inclined beams, columns, a first arc-shaped beam, a second arc-shaped beam, and a rotating structure.

[0009] The bottom of the column is vertically fixed to the ground, and the top of the column is connected to the center of the inclined beam through a rotating structure.

[0010] On the bottom surface of the component tray facing the ground, four sides are defined sequentially as the first side, the second side, the third side, and the fourth side. The first side and the third side, and the second side and the fourth side, respectively form two sets of relatively parallel side groups. A first arc-shaped beam is installed on the first side and the third side, and the two ends of the second arc-shaped beam are fixed to the center of the first side and the third side, respectively.

[0011] After passing through the semicircular spaces of the two first arc-shaped beams at both ends of the inclined beam, it connects to the second arc-shaped beam, with the connection point close to the end of the second arc-shaped beam.

[0012] Photovoltaic modules are embedded in the surface of the component tray facing the sky;

[0013] Rotating the first arc beam causes the photovoltaic module to swing clockwise or counterclockwise around the center line parallel to the second or fourth side. Rotating the second arc beam causes the photovoltaic module to swing clockwise or counterclockwise around the center line parallel to the first or third side.

[0014] Furthermore, it also includes a drive control system, which comprises a first motor, a second motor, a first steel cable, a second steel cable, and a control unit.

[0015] One end of the first steel cable is embedded in the first arc-shaped beam, and the other end is connected to the motor shaft of the first motor.

[0016] One end of the second steel cable is embedded in the second arc-shaped beam, and the other end is connected to the motor shaft of the second motor.

[0017] The control unit is electrically connected to both the first motor and the second motor.

[0018] Furthermore, the first motor is simultaneously electrically connected to the first reducer, and the second motor is simultaneously electrically connected to the second reducer;

[0019] Furthermore, when the photovoltaic module is embedded in the module tray, several pressure sensors are installed between the photovoltaic module and the module tray;

[0020] Furthermore, it includes four pressure sensors, namely a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor. The first pressure sensor is disposed between the photovoltaic module and the first side, the second pressure sensor is disposed between the photovoltaic module and the second side, the third pressure sensor is disposed between the photovoltaic module and the third side, and the fourth pressure sensor is disposed between the photovoltaic module and the fourth side.

[0021] Furthermore, the first pressure sensor, the second pressure sensor, the third pressure sensor, and the fourth pressure sensor are all electrically connected to the control unit;

[0022] Furthermore, the control unit is a PLC or a microcontroller;

[0023] Furthermore, the rotating structure includes a first rotating structure, a first telescopic arm, a second rotating structure, and a second telescopic arm. The first rotating structure is fixed to the top of the column, and the second rotating structure is fixed to the center of the inclined beam. One end of the first telescopic arm is rotatably connected to the first rotating structure, and the other end of the first telescopic arm is rotatably connected to one end of the second telescopic arm. The other end of the second rotating structure is rotatably connected to the other end of the second telescopic arm.

[0024] Furthermore, the first rotating structure is the same as the second rotating structure, both including a base, a rubber ring, a shell, a rotating ball, and a connecting rod. The rubber ring is installed on the base, the rotating ball is embedded in the rubber ring, the shell is sleeved on the outside of the rubber ring, one end of the connecting rod is fixed to the rotating ball inside the shell, and the other end extends out of the shell.

[0025] The other end of the connecting rod of the first rotating structure is connected to one end of the first telescopic arm, and the other end of the connecting rod of the second rotating structure is connected to the other end of the second telescopic arm.

[0026] Furthermore, the support body is made of carbon steel, while the first and second steel cables are made of stainless steel.

[0027] By using the above technical solutions, compared with the prior art, this utility model has the following beneficial effects:

[0028] 1. The two-dimensional adjustable windproof photovoltaic support provided by this utility model has better adaptability to strong winds. Its design realizes two-dimensional adjustment, which can adjust the photovoltaic module to be parallel to the wind direction when strong winds come, thereby minimizing wind resistance and protecting the photovoltaic module and the support.

[0029] 2. The two-dimensional adjustable windproof photovoltaic bracket provided by this utility model can track the solar altitude angle and solar azimuth angle under non-strong wind conditions, which greatly improves the power generation efficiency of photovoltaic modules. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram of the structure of the support body in a preferred embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the electrical connection between the bracket body and the drive control system in a preferred embodiment of the present invention;

[0033] Figure 3 This is a front view of the pressure sensor installation in a preferred embodiment of the present invention;

[0034] Figure 4 This is a side view of the pressure sensor installation in a preferred embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the rotating structure in a preferred embodiment of the present invention.

[0036] In the diagram: 1 is the component tray, 2 is the photovoltaic module, 3 is the first arc beam, 4 is the inclined beam, 5 is the second arc beam, 6 is the column, 7 is the first motor, 8 is the first reducer, 9 is the first steel cable, 10 is the second motor, 11 is the second reducer, 12 is the second steel cable, 13 is the control unit, 14 is the support body, 15 is the first pressure sensor, 16 is the second pressure sensor, 17 is the third pressure sensor, 18 is the fourth pressure sensor, 19 is the rotating structure, 20 is the base, 21 is the outer shell, and 22 is the connecting rod. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of this application, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

[0038] As described in the background section, traditional photovoltaic windproof supports achieve wind resistance by horizontal lifting or by adding drag devices to the structure. However, if strong winds generate vortices at the edge or within the photovoltaic array when passing through the photovoltaic support, the traditional photovoltaic windproof supports cannot withstand this condition. This not only fails to improve the power generation efficiency of the photovoltaic panels but also damages the photovoltaic support.

[0039] To address the aforementioned issues, this application provides a two-dimensional adjustable windproof photovoltaic support structure, comprising a support body 14, the overall structure of which is as follows: Figure 1 As shown, the system includes a component tray 1, a photovoltaic module 2, an inclined beam 4, a column 6, a first arc-shaped beam 3, a second arc-shaped beam 5, and a rotating structure 19. The bottom of the column is vertically fixed to the ground, and the top of the column is connected to the center of the inclined beam through the rotating structure; the rotating structure allows the inclined beam to rotate at all angles relative to the column.

[0040] On the bottom surface of the component tray facing the ground, for ease of explanation, the four sides are defined sequentially as the first side, the second side, the third side, and the fourth side. Figure 1 From a visual perspective, the side at the top is the first side, the side on the right is the second side, the side at the bottom is the third side, and the side on the left is the fourth side. The first and third sides, and the second and fourth sides, form two sets of relatively parallel side groups. A first arc-shaped beam is installed on the first and third sides respectively, and the two ends of the second arc-shaped beam are fixed to the centers of the first and third sides respectively. The two ends of the inclined beam pass through the semi-circular spaces of the two first arc-shaped beams and then connect to the second arc-shaped beam, with the connection point close to the end of the second arc-shaped beam.

[0041] This structural design has several innovative aspects. Firstly, the first and second curved beams, as shown in the diagram, are both semi-circular in structure. This is primarily to apply force to the module tray, allowing for angle adjustment. Traditional windproof supports adjust angle by vertically raising and lowering the beams, which cannot minimize wind resistance. The semi-circular curved beams, however, offer more points of application when applying force to the photovoltaic modules. Different points on the curved beam are at different distances from the ground, allowing for the selection of appropriate tension points based on real-time operating conditions. Combined with a rotating structure, this enables the photovoltaic modules to be embedded in the sky-facing surface of the module tray, allowing for multi-angle free adjustment of the modules. Figure 1The system applies force to the first and second curved beams, allowing the photovoltaic modules to adjust horizontally (swinging left and right) and vertically (swinging up and down). When strong winds occur, the photovoltaic modules adjust their angle to align with the wind direction, reducing vortex generation, distributing wind pressure evenly, and minimizing wind resistance. This effectively resists strong winds and avoids the vortex effect common in traditional flat single-axis supports under strong winds, thus solving the problem of wind pressure damaging the photovoltaic modules and supports, and significantly reducing the risk of damage to the photovoltaic modules due to strong winds. Furthermore, the hollow design of the curved beams further reduces manufacturing costs.

[0042] In this application, the angle adjustment of the photovoltaic module is achieved through automated adjustment via a drive control system, such as... Figure 2 As shown, it includes a first motor 7, a second motor 10, a first steel cable 9, a second steel cable 12, and a control unit 13. One end of the first steel cable is embedded in the first arc-shaped beam, and the other end is connected to the motor shaft of the first motor. One end of the second steel cable is embedded in the second arc-shaped beam, and the other end is connected to the motor shaft of the second motor. The control unit is electrically connected to both the first and second motors. The first and second arc-shaped beams are driven by the matched first and second steel cables and controlled by the first and second motors. Since the adjustment accuracy needs to be ensured when adjusting the angle of the photovoltaic module, a first reducer 8 is matched to the first motor, and a second reducer 11 is matched to the second motor.

[0043] When photovoltaic modules are embedded in module trays, several pressure sensors are installed between the photovoltaic modules and the module trays. Preferably, this application provides four pressure sensors, namely a first pressure sensor 15, a second pressure sensor 16, a third pressure sensor 17, and a fourth pressure sensor 18, as follows: Figures 3-4 As shown, the first pressure sensor is disposed between the photovoltaic module and the first side, the second pressure sensor is disposed between the photovoltaic module and the second side, the third pressure sensor is disposed between the photovoltaic module and the third side, and the fourth pressure sensor is disposed between the photovoltaic module and the fourth side. All four pressure sensors are electrically connected to the control unit.

[0044] Pressure sensors are positioned around the four sides of the photovoltaic modules to monitor wind pressure distribution in real time. The drive control system can dynamically adjust the angles of the first and second curved beams based on the feedback from the pressure sensors, ensuring the photovoltaic modules are always in the optimal position (where wind pressure is minimal). This design not only reduces the need for manual intervention but also improves system reliability and response speed. For the control unit, a PLC or a microcontroller can be selected.

[0045] In the aforementioned location of minimum wind pressure, in practical implementation, let the value measured by the first pressure sensor be P1, the value measured by the second pressure sensor be P2, the value measured by the third pressure sensor be P3, and the value measured by the fourth pressure sensor be P4. Adjust the first and second arc-shaped beams to minimize P1+P2+P3+P4. The drive control system continuously tracks the minimum value of P1+P2+P3+P4.

[0046] The support structure provided in this application not only enhances wind resistance through two-dimensional adjustability but also improves power generation efficiency. Under non-strong wind conditions, adjusting the first arc-shaped beam tracks the solar altitude angle, while adjusting the second arc-shaped beam tracks the solar azimuth angle. This dual-axis tracking system ensures that the photovoltaic modules always face the sun at the optimal angle, maximizing the reception of solar radiation and thus improving power generation efficiency.

[0047] The foregoing description also mentions the rotating structure, which serves as the connection between the inclined beam and the column and is a key component enabling the photovoltaic module to rotate freely. This application provides a preferred embodiment. Figure 5 As shown, the rotating structure includes a first rotating structure, a first telescopic arm, a second rotating structure, and a second telescopic arm. The first rotating structure is fixed to the top of the column, and the second rotating structure is fixed to the center of the inclined beam. One end of the first telescopic arm is rotatably connected to the first rotating structure, and the other end of the first telescopic arm is rotatably connected to one end of the second telescopic arm. The other end of the second rotating structure is rotatably connected to the other end of the second telescopic arm. The first and second rotating structures are identical, each including a base 20, a rubber ring, a shell 21, a rotating ball, and a connecting rod 22. The rubber ring is mounted on the base, the rotating ball is embedded in the rubber ring, the shell is fitted over the rubber ring, one end of the connecting rod is fixed to the rotating ball inside the shell, and the other end extends out of the shell. The other end of the connecting rod of the first rotating structure is connected to one end of the first telescopic arm, and the other end of the connecting rod of the second rotating structure is connected to the other end of the second telescopic arm.

[0048] To ensure the rigidity of the entire structure, the support body is made of carbon steel, while the first and second steel cables are made of stainless steel.

[0049] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0050] The meaning of "and / or" as used in this application includes situations where each exists alone or both exist simultaneously.

[0051] The term "connection" as used in this application can mean a direct connection between components or an indirect connection between components through other components.

[0052] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A two-dimensional adjustable windproof photovoltaic support, characterized in that: The support body (14) includes a component tray (1), a photovoltaic module (2), a diagonal beam (4), a column (6), a first arc beam (3), a second arc beam (5), and a rotating structure (19). The bottom end of the column (6) is vertically fixed to the ground, and the top end of the column (6) is connected to the center position of the inclined beam (4) through the rotating structure (19); On the bottom surface of the component tray (1) facing the ground, four sides are defined as the first side, the second side, the third side and the fourth side in sequence. The first side and the third side, and the second side and the fourth side respectively form two sets of relatively parallel side groups; a first arc beam (3) is installed on the first side and the third side respectively, and the two ends of the second arc beam (5) are fixed to the center of the first side and the third side respectively. After the two ends of the inclined beam (4) pass through the semicircular spaces of the two first arc beams (3), they are connected to the second arc beam (5), and the connection point is close to the end of the second arc beam (5). Photovoltaic modules (2) are embedded in the surface of the component tray (1) facing the sky; Rotate the first arc beam (3), and the photovoltaic module (2) swings clockwise or counterclockwise with the center line parallel to the second or fourth side. Rotate the second arc beam (5), and the photovoltaic module (2) swings clockwise or counterclockwise with the center line parallel to the first or third side.

2. The two-dimensional adjustable windproof photovoltaic support according to claim 1, characterized in that: It also includes a drive control system, which comprises a first motor (7), a second motor (10), a first steel cable (9), a second steel cable (12), and a control unit (13). One end of the first steel cable (9) is embedded in the first arc beam (3), and the other end is connected to the motor shaft of the first motor (7); One end of the second steel cable (12) is embedded in the second arc beam (5), and the other end is connected to the motor shaft of the second motor (10); The control unit (13) is electrically connected to both the first motor (7) and the second motor (10).

3. The two-dimensional adjustable windproof photovoltaic support according to claim 2, characterized in that: The first motor (7) is electrically connected to the first reducer (8) at the same time, and the second motor (10) is electrically connected to the second reducer (11) at the same time.

4. The two-dimensional adjustable windproof photovoltaic support according to claim 2, characterized in that: When the photovoltaic module (2) is embedded in the module tray (1), several pressure sensors are set between the photovoltaic module (2) and the module tray (1).

5. The two-dimensional adjustable windproof photovoltaic support according to claim 4, characterized in that: It includes four pressure sensors, namely a first pressure sensor (15), a second pressure sensor (16), a third pressure sensor (17) and a fourth pressure sensor (18). The first pressure sensor (15) is disposed between the photovoltaic module (2) and the first side, the second pressure sensor (16) is disposed between the photovoltaic module (2) and the second side, the third pressure sensor (17) is disposed between the photovoltaic module (2) and the third side, and the fourth pressure sensor (18) is disposed between the photovoltaic module (2) and the fourth side.

6. The two-dimensional adjustable windproof photovoltaic support according to claim 5, characterized in that: The first pressure sensor (15), the second pressure sensor (16), the third pressure sensor (17), and the fourth pressure sensor (18) are all electrically connected to the control unit (13).

7. The two-dimensional adjustable windproof photovoltaic support according to claim 2, characterized in that: The control unit (13) is a PLC or a microcontroller.

8. The two-dimensional adjustable windproof photovoltaic support according to claim 1, characterized in that: The rotating structure (19) includes a first rotating structure, a first telescopic arm, a second rotating structure and a second telescopic arm. The first rotating structure is fixed at the top of the column (6), and the second rotating structure is fixed at the center of the inclined beam (4). One end of the first telescopic arm is rotatably connected to the first rotating structure, and the other end of the first telescopic arm is rotatably connected to one end of the second telescopic arm. The other end of the second rotating structure is rotatably connected to the other end of the second telescopic arm.

9. The two-dimensional adjustable windproof photovoltaic support according to claim 8, characterized in that: The first rotating structure is the same as the second rotating structure, both including a base (20), a rubber ring, a shell (21), a rotating ball and a connecting rod (22). The rubber ring is installed on the base (20), the rotating ball is embedded in the rubber ring, the shell (21) is sleeved on the outside of the rubber ring, one end of the connecting rod (22) is fixed on the rotating ball inside the shell (21), and the other end extends out of the shell (21). The other end of the connecting rod (22) of the first rotating structure is connected to one end of the first telescopic arm, and the other end of the connecting rod (22) of the second rotating structure is connected to the other end of the second telescopic arm.

10. The two-dimensional adjustable windproof photovoltaic support according to claim 2, characterized in that: The support body (14) is made of carbon steel, and the first steel cable (9) and the second steel cable (12) are made of stainless steel.

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