Large-span offshore photovoltaic support

Abstract

The utility model discloses a large-span offshore photovoltaic support, and belongs to the technical field of photovoltaic supports. The device comprises a supporting frame body, a photovoltaic assembly and an adjusting assembly, the supporting frame body comprises fixing supports arranged in pairs and steel cables, the two ends of the steel cables are connected with the two fixing supports respectively, and the two steel cables are arranged at intervals to form a mounting space; the photovoltaic assembly comprises a connecting fastener, a supporting plate and a solar cell panel, the connecting fastener is detachably connected with the steel cable, the two ends of the supporting plate are rotationally connected with the connecting fastener, and the solar cell panel is installed on the supporting plate; the adjusting assembly comprises a telescopic electric push rod, and the two ends of the electric push rod are hinged to the connecting fastener and the supporting plate respectively so as to drive the supporting plate to rotate relative to the connecting fastener and adjust the included angle of the solar cell panel relative to the sun. According to the utility model, the inclination angle of the solar cell panel can be flexibly adjusted so as to catch sunlight to the greatest extent and improve the photovoltaic power generation efficiency.

Description

A large-span offshore photovoltaic support system Technical Field

[0001] This utility model relates to the field of photovoltaic support technology, and in particular to a large-span marine photovoltaic support. Background Technology

[0002] The development of photovoltaic (PV) power plants on leveled land is becoming increasingly rare, and the development environment for PV power plants is becoming more and more complex. Developing PV power plants at sea has become the latest development trend. When installing PV systems at sea, it is necessary to use as few pillars as possible to reduce installation costs. Therefore, the span of PV systems is becoming increasingly larger, far exceeding the span of the original ground-based PV systems which was less than 5 meters, with the largest spans even exceeding 50 meters.

[0003] However, large-span photovoltaic supports are prone to deflection deformation under their own weight and temperature. The deflection deformation of the steel cables causes the azimuth and tilt angles of the photovoltaic modules to deviate from the optimal angle, thereby reducing the efficiency of the photovoltaic modules. Summary of the Invention

[0004] In view of this, it is necessary to provide a large-span marine photovoltaic support system to solve the problem of directional misalignment of solar panels in existing large-span photovoltaic support systems.

[0005] This utility model provides a large-span offshore photovoltaic support system, comprising:

[0006] The support frame includes a pair of fixed brackets and steel cables. The two ends of the steel cables are respectively connected to the two fixed brackets, and the two steel cables are spaced apart to form an installation space.

[0007] A photovoltaic module is installed in an installation space. The photovoltaic module includes a connecting fastener, a support plate, and a solar panel. The connecting fastener is detachably connected to the steel cable. Both ends of the support plate are rotatably connected to the connecting fastener. The solar panel is installed on the support plate.

[0008] An adjustment assembly includes a retractable electric push rod, the two ends of which are hinged to the connecting fastener and the support plate, respectively, to drive the support plate to rotate relative to the connecting fastener and adjust the angle between the solar panel and the sun.

[0009] Furthermore, a rotating unit is provided between the connecting fastener and the support plate. The rotating unit includes a rotating shaft and a rotating cylinder. The rotating shaft is located in the middle of the support plate and is fixedly connected to the support plate. The rotating cylinder is integrally connected to the connecting fastener. The rotating shaft is inserted into the rotating cylinder and engaged with the rotating cylinder. The rotating shaft can rotate relative to the rotating cylinder.

[0010] Furthermore, the support plate is provided with a first connecting pin on one side opposite to the rotating shaft. One end of the electric push rod is rotatably connected to the connecting fastener, and the other end of the electric push rod is rotatably connected to the first connecting pin. The electric push rod can extend and retract relative to each other to drive the support plate to rotate around the rotating shaft.

[0011] Furthermore, the support plate is provided with a second connecting pin on the other side of the rotating shaft, and an elastic element is provided between the connecting fastener and the second connecting pin. The two ends of the elastic element are respectively rotatably connected to the second connecting pin and the connecting fastener, and the elastic element can drive the support plate to be set horizontally.

[0012] Furthermore, the connecting fastener has a connecting hole in the middle for installing the steel cable, and a threaded hole on one side of the connecting fastener, into which the bolt is screwed, and the bolt can tighten and fix the steel cable.

[0013] Furthermore, a support unit is provided between the connecting fastener and the fixed bracket. The support unit includes a connecting part and a stay cable. The connecting part is integrally connected to the top of the connecting fastener, and the two ends of the stay cable are respectively connected to the connecting part and the fixed bracket.

[0014] Furthermore, the fixed support includes a portal frame and a base. The portal frame is connected to the seabed pile foundation through the base. The middle part of the portal frame is connected to the steel cable, and the top of the portal frame is connected to the stay cable.

[0015] Furthermore, a reinforcing plate is provided between the base and the portal frame, and the reinforcing plate is arranged along the length direction of the steel cable.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) This utility model discloses a large-span offshore photovoltaic support structure equipped with photovoltaic modules. The photovoltaic modules include connecting fasteners, support plates, and solar panels. The connecting fasteners are detachably connected to the steel cables, allowing for easy disassembly of the fasteners and cables for necessary adjustments or replacements. Both ends of the support plate are rotatably connected to the connecting fasteners, and the solar panels are mounted on the support plate. The solar panels are securely supported by the rotatable connection between the support plate and the connecting fasteners. This ensures that the solar panels are not easily damaged in the rough seas, improving the stability of the support structure and the lifespan of the solar panels. The support plate can rotate relative to the connecting fasteners. This design allows the support structure to flexibly adjust the tilt angle of the solar panels as needed to maximize sunlight capture and improve photovoltaic power generation efficiency.

[0018] (2) A large-span offshore photovoltaic support structure of this utility model includes an adjustment component between the support plate and the connecting fastener. The adjustment component includes a telescopic electric push rod, the two ends of which are hinged to the connecting fastener and the support plate, respectively. The telescopic movement of the electric push rod can drive the support plate to rotate relative to the connecting fastener, thereby adjusting the angle between the solar panel and the sun. As the position and angle of the sun change with time and location, the automatic adjustment mechanism driven by the electric push rod allows the support plate to adjust its angle according to the position of the sun at any time, ensuring that the solar panel always faces the sun and maximizing the utilization of solar energy resources. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 is a top view of the overall structure of this utility model;

[0022] Figure 3 is a schematic diagram of the structure of the photovoltaic module in this utility model;

[0023] Figure 4 is an exploded view of the adjustment component in this utility model;

[0024] Figure 5 is a structural schematic diagram of the connecting fastener in this utility model;

[0025] Figure 6 is a schematic diagram of the structure of the fixed bracket in this utility model;

[0026] In the diagram, 100 is the support frame; 110 is the fixed bracket; 111 is the portal frame; 112 is the base; 113 is the reinforcing plate; 120 is the steel cable; 130 is the support unit; 131 is the connecting part; and 132 is the stay cable.

[0027] 200. Photovoltaic module; 210. Connecting fastener; 211. Connecting hole; 212. Threaded hole; 220. Support plate; 221. First connecting pin; 222. Second connecting pin;

[0028] 300. Adjustment component; 310. Electric push rod; 320. Rotation unit; 321. Rotating shaft; 322. Rotating drum; 330. Elastic element. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0030] This embodiment describes a large-span offshore photovoltaic support structure, which relates to the field of photovoltaic support technology. By setting an adjustable-angle support plate 220 between two steel cables 120, the angle of the support plate 220 can be adjusted as needed, so that the solar panels installed on the support plate 220 can always maintain a suitable angle with the sun, thereby improving the photoelectric conversion efficiency of the solar panels.

[0031] Please refer to Figures 1 to 6. In this embodiment, a large-span offshore photovoltaic (PV) support structure includes a support frame 100, PV modules 200, and an adjustment component 300. The support frame 100 can be fixed to the sea surface, providing effective support for the PV modules 200. The PV modules 200 can absorb solar energy and convert it into electrical energy. The adjustment component 300 is located between the PV modules 200 and the steel cable 120, and can adjust the angle of the PV modules 200 relative to the sun, thereby improving the photoelectric conversion efficiency of the solar panels.

[0032] The support frame 100 includes a pair of fixed brackets 110 and steel cables 120. The two ends of the steel cables 120 are connected to the two fixed brackets 110 respectively. The steel cables 120 are flexible connection structures, which makes the overall structure of the support frame 100 more stable and can effectively resist external forces such as wind and waves in the complex marine environment, ensuring the safety and stability of the photovoltaic modules 200.

[0033] An installation space is formed by two steel cables 120 spaced apart. A photovoltaic module 200 is installed within this space. The photovoltaic module 200 includes a connecting fastener 210, a support plate 220, and a solar panel. The connecting fastener 210 is detachably connected to the steel cable 120. This detachable connection design allows for easy disassembly and reconnection of the fastener 210 and the steel cable 120, simplifying the installation and maintenance process. Especially when replacing or adjusting some support components, the detachable connection significantly reduces operational complexity and time costs. When adjusting the support structure or performing maintenance, the connecting fastener 210 and the steel cable 120 can be easily disassembled for necessary adjustments or replacements without damaging the overall structure of the support.

[0034] Both ends of the support plate 220 are rotatably connected to the connecting fasteners 210, and the solar panel is mounted on the support plate 220. The solar panel is securely supported by the rotatable connection between the support plate 220 and the connecting fasteners 210. This ensures that the solar panel is not easily damaged in the rough seas, improving the stability of the support structure and the lifespan of the solar panel. The support plate 220 can rotate relative to the connecting fasteners 210. This design allows the support structure to flexibly adjust the tilt angle of the solar panel as needed to maximize sunlight capture and improve photovoltaic power generation efficiency.

[0035] The adjustment assembly 300 includes a telescopic electric actuator 310, with its two ends hinged to a connecting fastener 210 and a support plate 220, respectively. The telescopic movement of the electric actuator 310 drives the support plate 220 to rotate relative to the connecting fastener 210, thereby adjusting the angle of the solar panel relative to the sun. As the sun's position and illumination angle change with time and location, the automatic adjustment mechanism driven by the electric actuator 310 allows the support plate 220 to adjust its angle according to the sun's position at any time, ensuring that the solar panel always faces the sun and maximizing the utilization of solar energy resources.

[0036] In some embodiments, as shown in Figures 3 and 4, a rotating unit 320 is provided between the connecting fastener 210 and the support plate 220. The rotating unit 320 includes a rotating shaft 321 and a rotating cylinder 322. The rotating shaft 321 is located in the middle of the support plate 220 and is fixedly connected to the support plate 220. The rotating cylinder 322 is integrally connected to the connecting fastener 210. With the help of the rotating unit 320, the connecting fastener 210 and the support plate 220 can rotate relative to each other. A spherical plug is provided at the end of the rotating shaft 321. The spherical plug can be engaged in the connecting fastener 210 to prevent the support plate 220 from detaching from the connecting fastener 210.

[0037] In some embodiments, please refer to FIG4, a first connecting pin 221 is provided on one side of the support plate 220 relative to the rotating shaft 321, one end of the electric push rod 310 is rotatably connected to the connecting fastener 210, and the other end of the electric push rod 310 is rotatably connected to the first connecting pin 221. The electric push rod 310 can extend and retract relative to each other, driving the support plate 220 to rotate around the rotating shaft 321.

[0038] The electric actuator 310 is connected to the support plate 220 via a first connecting pin 221, which enhances the stability of the adjustment process. When driven by the electric actuator 310, the support plate 220 rotates stably around the pivot 321, minimizing wobbling or errors and ensuring accurate and reliable adjustment. The relative extensibility of the electric actuator 310 allows for more flexible angle adjustment of the support plate 220. Based on changes in lighting conditions and environment, the length of the electric actuator 310 can be automatically adjusted via a preset control program or sensor feedback, enabling automatic adjustment of the solar panel angle to adapt to different lighting angles and support structures, thus improving the adaptability and flexibility of the support system.

[0039] It should be noted that the connecting fastener 210 also includes a rotating column. One end of the electric push rod 310 relative to the connecting fastener 210 is rotatably connected to the rotating column. The rotation centers of the rotating column and the rotating shaft 321 are not coincident and are relatively far apart. The rotating column, the rotating shaft 321, and the first connecting pin 221 form a triangular structure with these three vertices. By changing the length of the electric push rod 310, the angle between the support plate 220 and the steel cable 120 can be changed, ensuring that the solar panel is always facing the sun.

[0040] In some embodiments, referring to Figure 4, a second connecting pin 222 is provided on the other side of the support plate 220 relative to the rotating shaft 321. An elastic element 330 is provided between the connecting fastener 210 and the second connecting pin 222. The elastic element 330 is specifically a spring, and its two ends are rotatably connected to the second connecting pin 222 and the connecting fastener 210, respectively. When the support plate 220 is subjected to external sea winds and heavy rain, the elastic element 330 will apply an appropriate force to the support plate 220, thereby making the support plate 220 attempt to return to a relatively horizontal position, which can reduce the impact of wind on the support and improve the wind resistance of the support. The elastic element 330 is connected to the side of the connecting fastener 210. When the elastic element 330 is parallel to the steel cable 120, it has its shortest length, at which time the support plate 220 is parallel to the steel cable 120. When the support plate 220 is tilted relative to the steel cable 120, the elastic element 330 has a force to restore the parallelism of the support plate relative to the steel cable 120, which improves the wind resistance of the support.

[0041] In some embodiments, as shown in Figure 5, the connecting fastener 210 has a connecting hole 211 in the middle, making the installation of the steel cable 120 simple and convenient. Installers can directly fix the steel cable 120 to the connecting fastener 210 through the connecting hole 211, eliminating the need for other complex fixing methods, simplifying the installation process, and saving time and labor costs. The threaded hole 212 and bolt design of the connecting fastener 210 effectively tighten and fix the steel cable 120, ensuring a secure connection between the steel cable 120 and the connecting fastener 210. This avoids problems such as unstable support structure or inaccurate solar panel angles due to loose steel cable 120, improving the safety and stability of the system.

[0042] In some embodiments, referring to Figures 1 and 5, a support unit 130 is provided between the connecting fastener 210 and the fixed bracket 110. The support unit 130 includes a connecting part 131 and a stay cable 132. The connecting part 131 is integrally connected to the top of the connecting fastener 210, and the connecting part 131 is specifically a cable connector. One end of the stay cable 132 is connected to the cable connector, and the other end of the stay cable 132 is connected to the fixed bracket 110. Through the tension of the stay cable 132, the support structure formed between the connecting fastener 210 and the fixed bracket 110 is more robust and can effectively resist the effects of external wind force, gravity, and other forces, thereby improving the overall stability of the support system. The stay cable 132 can distribute the load between the support units 130 to the connecting fastener 210 and the fixed bracket 110, reducing the pressure on the connecting fastener 210 and the fixed bracket 110 and extending their service life. This can reduce the deflection and deformation of the support structure and ensure the long-term stability and safety of the support system.

[0043] In some embodiments, referring to Figure 6, the fixed support 110 includes a portal frame 111 and a base 112. The portal frame 111 is connected to the seabed pile foundation via the base 112. The seabed pile foundation is embedded in the seabed with reinforced concrete. The base 112 is connected to the seabed pile foundation via high-strength bolts. The connection between the portal frame 111 and the seabed pile foundation via the base 112 provides a stable support foundation. This makes the overall structure of the support more robust, and the seabed pile foundation can be firmly fixed to the seabed, ensuring the stability and reliability of the support in the marine environment and resisting the influence of external environmental factors such as sea waves and tides.

[0044] A reinforcing plate 113 is provided between the base 112 and the portal frame 111. The reinforcing plate 113 is arranged along the length of the steel cable 120. The arrangement of the reinforcing plate 113 enhances the connection stability between the base 112 and the portal frame 111. The arrangement of the reinforcing plate 113 along the length of the steel cable 120 effectively increases the connection area between the base 112 and the portal frame 111, enhancing the connection's strength and thus improving the stability and reliability of the entire support structure. The arrangement of the reinforcing plate 113 effectively distributes the load on the support structure. When the portal frame 111 is subjected to tensile force from the steel cable 120, the reinforcing plate 113 can bear part of the load, reducing the load on the base 112 and the portal frame 111, lowering the stress concentration of the structure, and contributing to the long-term stable operation of the support structure.

[0045] Workflow: First, the support plate 220 is secured to the two steel cables 120 using connecting fasteners 210. Then, an electric push rod 310 and an elastic element 330 are installed between each support plate 220 and the connecting fastener 210, and the control circuit is connected. Next, the solar panel is installed on the support plate 220 and connected to the power grid. Finally, by controlling the extension and retraction of the electric push rod 310, the angle of the support plate 220 relative to the horizontal plane can be adjusted, allowing the solar panel to flexibly adjust its tilt angle as needed to maximize sunlight capture and improve photovoltaic power generation efficiency.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A large-span offshore photovoltaic support structure, characterized in that, include: A support frame includes a pair of fixed brackets and steel cables. Both ends of the steel cables are connected to the two fixed brackets, and the two steel cables are spaced apart to form an installation space. A photovoltaic module is installed in the installation space. The photovoltaic module includes a connecting fastener, a support plate, and a solar panel. The connecting fastener is detachably connected to the steel cables. Both ends of the support plate are rotatably connected to the connecting fastener, and the solar panel is mounted on the support plate. An adjustment assembly includes a retractable electric push rod. Both ends of the electric push rod are hinged to the connecting fastener and the support plate, respectively, to drive the support plate to rotate relative to the connecting fastener, thereby adjusting the angle of the solar panel relative to the sun.

2. The large-span offshore photovoltaic support structure according to claim 1, characterized in that, A rotating unit is provided between the connecting fastener and the support plate. The rotating unit includes a rotating shaft and a rotating cylinder. The rotating shaft is located in the middle of the support plate and is fixedly connected to the support plate. The rotating cylinder is integrally connected to the connecting fastener. The rotating shaft is inserted into the rotating cylinder and is engaged with the rotating cylinder. The rotating shaft can rotate relative to the rotating cylinder.

3. A large-span offshore photovoltaic support structure according to claim 2, characterized in that, The support plate is provided with a first connecting pin on one side opposite to the rotating shaft. One end of the electric push rod is rotatably connected to the connecting fastener, and the other end of the electric push rod is rotatably connected to the first connecting pin. The electric push rod can extend and retract relative to each other to drive the support plate to rotate around the rotating shaft.

4. A large-span offshore photovoltaic support structure according to claim 3, characterized in that, The support plate is provided with a second connecting pin on the other side of the rotating shaft. An elastic element is provided between the connecting fastener and the second connecting pin. The two ends of the elastic element are rotatably connected to the second connecting pin and the connecting fastener, respectively. The elastic element can drive the support plate to be set horizontally.

5. A large-span offshore photovoltaic support structure according to claim 1, characterized in that, The connecting fastener has a connecting hole in the middle for installing the steel cable, and a threaded hole on one side of the connecting fastener. The bolt is screwed into the threaded hole and can be tightened to fix the steel cable.

6. A large-span offshore photovoltaic support structure according to claim 1, characterized in that, A support unit is provided between the connecting fastener and the fixed bracket. The support unit includes a connecting part and a stay cable. The connecting part is integrally connected to the top of the connecting fastener. The two ends of the stay cable are respectively connected to the connecting part and the fixed bracket.

7. A large-span offshore photovoltaic support structure according to claim 6, characterized in that, The fixed support includes a portal frame and a base. The portal frame is connected to the seabed pile foundation through the base. The middle part of the portal frame is connected to the steel cable, and the top of the portal frame is connected to the stay cable.

8. A large-span offshore photovoltaic support structure according to claim 7, characterized in that, A reinforcing plate is provided between the base and the portal frame, and the reinforcing plate is arranged along the length of the steel cable.

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