Novel tree-shaped marine telescopic photovoltaic power generation device

Abstract

The invention discloses a novel tree-shaped marine telescopic photovoltaic power generation device, which is composed of a photovoltaic panel, a telescopic mechanism, a driving mechanism and an induction mechanism, and adopts a unique tree-shaped structure and a telescopic design to realize efficient utilization and flexible adjustment of the photovoltaic panel. Through a circumferential array and multi-layer up-and-down arrangement, the power generation efficiency is improved; meanwhile, stretching and unfolding are automatically adjusted according to illumination and wind speed, and the stability and wind resistance of the device are enhanced. In addition, the device also has the advantages of rainwater corrosion prevention, convenience in placement of a plurality of devices, no need of additional manual operation and the like, and the economic benefit and the aesthetic effect are improved. The invention provides a new solution for the field of offshore photovoltaic power generation, not only improves the power generation efficiency, but also enhances the stability and applicability of the device, and has wide application prospects and remarkable technical advantages.

Description

Technical Field

[0001] The invention relates to the technical field of offshore photovoltaic power generation, and in particular to a novel tree-shaped offshore retractable photovoltaic power generation device. Background Art

[0002] As humans gradually realize the exhaustion of fossil energy and the damage to the environment caused by fossil energy during use, green energy such as wind energy, solar energy, and wind and wave energy have been vigorously developed. Among them, solar energy has been vigorously developed due to its irreplaceable superiority, but the most widely used is solar photovoltaic panels installed on land. However, the development of solar power generation on land has certain limitations. First, it occupies a large amount of precious land resources. Secondly, it is highly dependent on regions. Due to different geographical locations and climates, the sunshine resources in various regions vary greatly, and they need to be installed in areas with good lighting conditions.

[0003] There are also many offshore photovoltaic power generation devices, such as an offshore photovoltaic power generation platform disclosed by the invention patent with Chinese patent publication number CN116714730A. The orientation of the photovoltaic panels is usually fixed in a certain direction according to the local direct angle of sunlight, or the photovoltaic panels are usually in a single-layer linear array, which cannot be flexibly applied to different sea conditions. They need to be rearranged every time for different sea conditions. The single-layer arrangement of photovoltaic panels also reduces the utilization rate of offshore photovoltaic power generation devices and reduces the efficiency of photovoltaic power generation. More offshore photovoltaic power generation devices cannot be changed accordingly according to the changes in weather and wind speed. Environmental factors such as strong winds can easily damage photovoltaic components, thereby affecting power generation efficiency. At present, although there are some baffles installed above the photovoltaic panels to reduce the corrosion of rainwater on the photovoltaic panels, such as an offshore photovoltaic array intelligent protection device disclosed by the invention patent with Chinese patent publication number CN115848575A, the baffles will also block sunlight, thereby affecting the power generation efficiency of the photovoltaic panels. In addition, the weight of the baffles is very large. Once the wind is strong at sea, the center of gravity of the overall device will be unstable, and the risk of the device tilting or even collapsing will occur. Therefore, a new tree-shaped offshore retractable and liftable photovoltaic power generation device that can resist strong winds was designed.

[0004] In summary, the prior art has the following problems: 1. Offshore photovoltaic power generation devices are generally fixed and cannot take corresponding measures to protect photovoltaic panels and the entire device under strong wind conditions; 2. Offshore photovoltaic power generation devices are generally arranged according to the solar incidence angle of different sea areas. Once the sea area is changed, rearranging the device will consume a lot of manpower and time; 3. Offshore photovoltaic power generation devices are generally arranged in a single layer, which wastes the utilization rate of the entire device and reduces the power generation efficiency. Summary of the invention

[0005] Purpose of the invention: The present invention aims to provide a new tree-shaped offshore retractable photovoltaic power generation device with high resource utilization and strong wind resistance.

[0006] Technical solution: A novel tree-shaped offshore retractable photovoltaic power generation device of the present invention comprises a photovoltaic panel, a retractable mechanism, a sensing mechanism and a driving mechanism; the photovoltaic panel is arranged on the retractable mechanism and can extend and retract following the retractable mechanism; the retractable mechanism comprises a plurality of retractable rods and corresponding fixed rings, the retractable rods are hinged to the fixed rings and can rotate with the movement of the fixed rings to form a circular array; the driving mechanism is used to drive the retracting action of the retractable mechanism; the sensing mechanism is used to sense environmental parameters and control the operation of the driving mechanism.

[0007] Furthermore, the telescopic mechanism includes telescopic rod 1, telescopic rod 2, telescopic rod 3 and corresponding fixed ring 1, fixed ring 2, fixed ring 3. Each telescopic rod is connected to the corresponding fixed ring by a hinge. The three telescopic rods can rotate accordingly with the movement of the three fixed rings. The bottom telescopic rod is hinged to the two square rods on its left and right sides. The three telescopic rods are arranged in a circular array around the threaded rod. Each layer can be arrayed with an average of 4 to form a telescopic tree structure.

[0008] Furthermore, the telescopic rod is provided with a groove for placing the photovoltaic panel, and a baffle is provided below the groove.

[0009] Furthermore, the telescopic mechanism also includes a linkage rod, which is arranged between the telescopic rods to achieve synchronization and stability of the telescopic rods during the telescopic process.

[0010] Furthermore, the photovoltaic panels are arranged in multiple layers, and there is a certain distance between the upper and lower photovoltaic panels.

[0011] Further, the driving mechanism is a spiral motion mechanism, including a motor, a threaded rod 1, a threaded rod 2, a nut and a square rod, the motor provides power to drive the threaded rod 1 and the threaded rod 2 to rotate, the threaded rod 1 is threadedly connected to the fixing ring to control the up and down movement of the fixing ring and the telescopic rod connected thereto, the threaded rod 2 is connected to the square rod through a nut, and the square rod is hinged to the bottom telescopic rod to form a transmission system, which is used to provide thrust or pull for the telescopic rod according to the displacement difference generated by the difference in rotation speed of the threaded rod 1 and the threaded rod 2, thereby controlling the telescopic and angle adjustment of the photovoltaic panel. There is a rod between the threaded rod 1 and the threaded rod 2, the threaded rod 1 is above the rod, and the threaded rod 2 is below the rod, but the axis rotation speeds generated by the two threaded rods when performing spiral motion are different, which leads to different pitch lengths, so an upward thrust or downward pull will be generated due to the displacement difference to control the three telescopic rods and thus control the contraction and expansion of the photovoltaic panel.

[0012] Furthermore, the three fixing rings are threadedly connected to the threaded rod one, and the three fixing rings are arranged in a linear array on the threaded rod one. The distances between the fixing rings are equidistant, and the fixing rings can perform vertical spiral motion up and down as the threaded rod one rotates.

[0013] Furthermore, the sensing mechanism includes a pressure button 1, a pressure button 2, a photoresistor and a wind measuring device; the photoresistor is used to sense the light intensity, and when the light reaches a threshold, it triggers the motor to start and drives the telescopic mechanism to unfold the photovoltaic panel. The wind measuring device is used to measure the wind speed, and when the wind speed reaches a threshold, it triggers the reverse rotation and drives the telescopic mechanism to retract the photovoltaic panel. The pressure button 1 and the pressure button 2 are respectively fixed to the upper and lower sides of the fixed ring 1, and are used to detect the expansion or contraction state of the telescopic mechanism, and trigger the circuit to be turned on and off when reaching a predetermined position to achieve automatic control. When the overall device is expanded or contracted, due to the rotation of the telescopic rod 1, a squeezing force is generated between the telescopic rod 1 and the two pressure buttons, the pressure buttons are compressed, and the circuit is disconnected.

[0014] Furthermore, the threaded rod 1 is threadedly connected to the fixing ring and is provided with a self-locking mechanism.

[0015] Furthermore, the motor is equipped with an intelligent control system, which automatically adjusts the rotation speed of the threaded rod one and the threaded rod two according to the data provided by the sensing mechanism to achieve the optimal layout and angle adjustment of the photovoltaic panel.

[0016] Furthermore, the novel tree-shaped offshore retractable photovoltaic power generation device is arranged on a floating body.

[0017] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) The photovoltaic panel circular array device of the present invention greatly improves the power generation efficiency; (2) The present invention can absorb sunlight at different angles in different waters, and the device is retractable and flexible. When unfolded, it can increase the light receiving area of ​​the photovoltaic panel, further improving the efficiency; (3) The photovoltaic panels of the present invention are arranged in multiple layers, and there is a certain distance between the upper and lower photovoltaic panels to avoid the shadow affecting the power generation efficiency of the lower photovoltaic panel; (4) The present invention lowers the center of gravity in the retracted state, and can maintain its own stability at sea, preventing the device from swaying and being damaged in strong winds, thereby affecting the normal operation of the following; (5) When the present invention encounters rainy weather, the retracted photovoltaic panel is in an inclined state, which can effectively prevent rainwater from remaining on the photovoltaic panel and thus corroding the photovoltaic panel, and the rainwater can effectively clean the surface of the photovoltaic panel when flushing, keeping the surface of the photovoltaic panel clean to improve the power generation efficiency; (6) The components of the present invention are slender as a whole, and can be placed in sequence on the floating body, thereby improving work efficiency, without the need for additional manpower operation, high economic benefits, and good aesthetic effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention in the unfolded state;

[0019] Figure 2 It is a top view of the present invention in the unfolded state;

[0020] Figure 3 It is a front view of the present invention in the telescopic state;

[0021] Figure 4 This is the overall diagram of the present invention after removing the outer shell and photovoltaic panels;

[0022] Figure 5 This is a structural diagram of the fixing ring of the present invention;

[0023] Figure 6 This is a structural diagram of the telescopic connection device of the present invention;

[0024] Figure 7 It is a schematic diagram of the stopping device of the present invention;

[0025] Figure 8 It is a half-section view of the interior of the bottom connection structure of the present invention;

[0026] Fig. 9 It is a schematic diagram of the spiral motion device of the present invention. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0028] As shown in the figure, a novel tree-shaped offshore retractable photovoltaic power generation device of the present invention comprises a photovoltaic panel 1, a retractable mechanism 2, a sensing mechanism 3 and a spiral motion mechanism 4. The retractable mechanism 2 comprises a retractable rod 1 7, a retractable rod 2 11, a retractable rod 3 12 and corresponding fixing rings 1 8, 2 13 and 3 14. Each retractable rod is connected to the corresponding fixing ring by a hinged manner to form a retractable tree-like structure. A groove 10 for placing the photovoltaic panel 1 is provided on the retractable rod, and a baffle 27 is provided below the groove 10. The retractable mechanism 2 also comprises a linkage rod 18, which is arranged between the retractable rods to achieve synchronization and stability of each retractable rod during the retracting process. The photovoltaic panel 1 is arranged in three layers, namely, upper, middle and lower layers, and there is a certain distance between the upper and lower photovoltaic panels 1. The spiral motion mechanism 4 includes a motor 25, a threaded rod 1 9, a threaded rod 23, a nut 24 and a square rod 26. The motor 25 provides power to drive the threaded rod 1 9 and the threaded rod 23 to rotate. The threaded rod 1 9 is threadedly connected to the fixing ring and is provided with a self-locking mechanism to control the up and down movement of the fixing ring and the telescopic rod connected thereto. The threaded rod 23 is connected to the square rod 26 through the nut 24, and the square rod 26 is hinged to the bottom telescopic rod to form a transmission system, which is used to provide thrust or tension to the telescopic rod according to the displacement difference generated by the difference in rotation speed of the threaded rod 1 9 and the threaded rod 23, thereby controlling the telescopic and angle adjustment of the photovoltaic panel 1. The sensing mechanism 3 includes a pressure button 19, a pressure button 20, a photoresistor 6 and a wind measuring device 5; the photoresistor 6 is used to sense the light intensity. When the light reaches the threshold, the motor 25 is triggered to start and drive the telescopic mechanism 2 to unfold the photovoltaic panel 1. The wind measuring device 5 is used to measure the wind speed. When the wind speed reaches the threshold, the trigger 25 rotates in the opposite direction and drives the telescopic mechanism 2 to retract the photovoltaic panel 1. The pressure button 19 and the pressure button 20 are respectively fixed to the upper and lower sides of the fixed ring, and are used to detect the expansion or contraction state of the telescopic mechanism 2, and trigger the circuit to be turned on and off when reaching the predetermined position to realize automatic control. The motor 25 can be equipped with an intelligent control system, which automatically adjusts the rotation speed of the threaded rod 1 9 and the threaded rod 2 23 according to the data provided by the sensing mechanism to achieve the optimal layout and angle adjustment of the photovoltaic panel 1.

[0029] When the light reaches the threshold, the photoresistor 6 receives sunlight, the resistance value decreases, the current in the device reaches the threshold, and the motor 25 starts to rotate. The motor 25 is connected to the threaded rod 23 and fixed inside by the fixing block 21 and the fixing block 22. The nut 24 cooperates with the threaded rod 23 and moves up and down with the rotation of the motor 25. When the nut 24 moves upward, it controls the square rod 26 to move upward. The square rod 26 gives an upward thrust to the bottom telescopic rod 3 12. Due to the existence of the linkage rod 18, the thrust is transmitted upward to the telescopic rod 1 7 and the telescopic rod 2 11. Therefore, the telescopic rod 1 7, the telescopic rod 2 11, and the telescopic rod 3 12 of each layer are all expanded outward. Each layer is evenly arranged with 4 telescopic rods, which is equivalent to evenly arranging 4 photovoltaic panels 1 in different directions. The photovoltaic panel 1 is placed in the groove 10 and fixed with the baffle 27. It can absorb solar energy in different directions and maximize the power generation efficiency of the photovoltaic panel 1. At the same time, due to the spiral motion of the threaded rod 19, the fixing ring 18, the fixing ring 213, and the fixing ring 314 move upward, the fixing ring 18 and the telescopic rod 17 are hinged to each other through the fixing hole 16 and can rotate within a certain angle, the nut 24 is connected to the square rod 26, and the axial rotation speed generated by the nut 24 and the threaded rod 23 during the spiral motion is different from the axial rotation speed generated by the threaded rod 19 and the internal thread line 17 in the fixing ring 8, which leads to different pitch lengths. When unfolded, the pitch generated by the threaded rod 23 and the nut 24 is greater than the pitch generated by the threaded rod 19 and the internal thread line 17 in the fixing ring 8. When the nut 24 moves upward, it drives the square rod 26 to move upward. Because the pitch of the upper and lower threaded rods is different, the square rod 26 will generate an upward thrust on the telescopic rod 3 12, and the telescopic rod 3 12 will generate an extrusion force on the square rod 26, so that the telescopic rod 3 12 can rotate outward through the fixing hole 16, and the thrust is transmitted through the connecting rod 18. Due to the spiral movement between the threaded rod 19 and the spiral line 17, the fixing ring 18, the fixing ring 213, and the fixing ring 314 move upward at the same time, so that the photovoltaic panels 1 on each layer of the telescopic rod 17, the telescopic rod 211, and the telescopic rod 312, a total of 12 photovoltaic panels 1, are opened at the same time, realizing linkage. When the fixing ring 18 and the telescopic rod 17 reach the highest position and are unfolded to the maximum extent, the telescopic rod 17 hits the pressure button 19 located above the fixing ring 18. The pressure button 19 is placed above the fixing ring 18 and ensures that the pressure button 19 is triggered when the device is unfolded to the maximum. The pressure button 19 is squeezed, thereby disconnecting the circuit, stopping the motor from running, and stopping the device from lifting.

[0030] When the wind speed reaches the threshold of the wind measuring device 5, the motor 25 starts to rotate in the opposite direction, the fixed ring 1 8, the fixed ring 2 13, and the fixed ring 3 14 start to shrink downward, and the telescopic rod 1 7, the telescopic rod 2 11, and the telescopic rod 3 12 start to move downward. Due to the existence of the linkage rod 18, the 3 layers of photovoltaic panels 1, a total of 12 photovoltaic panels 1, can shrink downward at the same time. When shrinking to the maximum extent, the telescopic rod 1 7 squeezes downward and hits the pressure button 20 located below the fixed ring 1 8. The pressure button 20 is placed below the fixed ring 1 8 and ensures that the pressure button 20 is triggered when the device shrinks to the maximum. The pressure button 20 is squeezed, thereby disconnecting the circuit, stopping the motor from running, and stopping the device from shrinking. The center of gravity of the device is reduced to the minimum, which can reduce the overall shaking of the device and offset the damage to the photovoltaic panel 1 caused by wind and waves to the maximum extent. When the photovoltaic panel 1 is lowered, it is also conducive to the maintenance and replacement of the photovoltaic panel 1 in the later stage.

[0031] Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined by the claims of this application.

Claims

1. A novel tree-shaped offshore retractable photovoltaic power generation device, comprising a photovoltaic panel (1), characterized in that: It also comprises a telescopic mechanism (2), a sensing mechanism (3) and a driving mechanism; the photovoltaic panel (1) is tiltedly arranged on the telescopic mechanism (2) and can follow the telescopic mechanism (2) to extend and retract; the telescopic mechanism (2) comprises a plurality of telescopic rods and corresponding fixing rings, the telescopic rods are hinged to the fixing rings and can rotate with the movement of the fixing rings to form a circular array; the driving mechanism is used to drive the telescopic action of the telescopic mechanism (2); the sensing mechanism (3) is used to sense environmental parameters and control the operation of the driving mechanism.

2. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 1 is characterized in that: The telescopic mechanism (2) comprises a telescopic rod 1 (7), a telescopic rod 2 (11), a telescopic rod 3 (12) and corresponding fixing rings 1 (8), 2 (13) and 3 (14), each of the telescopic rods being connected to the corresponding fixing ring in an articulated manner to form a telescopic tree-like structure.

3. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 1 or 2, characterized in that: The telescopic rod is provided with a groove (10) for placing the photovoltaic panel (1), and a baffle (27) is provided below the groove (10).

4. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 1 or 2, characterized in that: The telescopic mechanism (2) further comprises a linkage rod (18), wherein the linkage rod (18) is arranged between the telescopic rods and is used to achieve synchronization and stability of the telescopic rods during the telescopic process.

5. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 1 is characterized in that: The photovoltaic panels (1) are arranged in multiple layers, and there is a certain distance between the upper and lower photovoltaic panels (1).

6. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 1 is characterized in that: The driving mechanism is a spiral motion mechanism (4), comprising a motor (25), a threaded rod (9), a threaded rod (23), a nut (24) and a square rod (26). The motor (25) provides power to drive the threaded rod (9) and the threaded rod (23) to rotate. The threaded rod (9) is threadedly connected to a fixing ring to control the upward and downward movement of the fixing ring and the telescopic rod connected thereto. The threaded rod (23) is connected to the square rod (26) through a nut (24). The square rod (26) is hinged to the bottom telescopic rod to form a transmission system for providing thrust or pulling force to the telescopic rod according to the displacement difference generated by the difference in rotation speed between the threaded rod (9) and the threaded rod (23), thereby controlling the telescopic movement and angle adjustment of the photovoltaic panel (1).

7. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 6 is characterized in that: The sensing mechanism (3) comprises a pressure button 1 (19), a pressure button 2 (20), a photoresistor (6) and a wind measuring device (5); the photoresistor (6) is used to sense light intensity. When the light intensity reaches a threshold value, the trigger motor (25) is started to drive the telescopic mechanism (2) to unfold the photovoltaic panel (1); the wind measuring device (5) is used to measure wind speed. When the wind speed reaches a threshold value, the trigger (25) rotates in the opposite direction to drive the telescopic mechanism (2) to retract the photovoltaic panel (1); the pressure button 1 (19) and the pressure button 2 (20) are respectively fixed to the upper and lower sides of the fixing ring, and are used to detect the unfolding or retracting state of the telescopic mechanism (2), and trigger the circuit to be turned on and off when reaching a predetermined position, thereby realizing automatic control.

8. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 6 is characterized in that: The threaded rod 1 (9) is threadedly connected to the fixing ring and is provided with a self-locking mechanism.

9. The novel tree-shaped offshore retractable photovoltaic power generation device according to claim 6 is characterized in that: The motor (25) is equipped with an intelligent control system, which automatically adjusts the rotation speed of the threaded rod 1 (9) and the threaded rod 2 (23) according to the data provided by the sensing mechanism, so as to achieve the optimal layout and angle adjustment of the photovoltaic panel (1).

10. The novel tree-shaped offshore retractable photovoltaic power generation device according to any one of claims 1 to 9, characterized in that: The novel tree-shaped offshore retractable photovoltaic power generation device is arranged on a floating body.

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