Marine photovoltaic module with self-cleaning function

Abstract

This invention relates to the field of photovoltaic module technology, specifically a self-cleaning marine photovoltaic module, comprising a mounting frame and a base pile. The mounting frame has several base columns welded to its bottom, each base column has a mounting plate fixedly mounted at its bottom, each mounting plate has a pressure rod fixedly mounted at its bottom, each pressure rod has a limit rod welded to its bottom, each base pile has a cooling cylinder fixedly mounted at its top, each cooling cylinder has an mounting cylinder fixedly mounted at its inner bottom, and each mounting cylinder has a rotating cylinder rotatably connected to its top. The photovoltaic module, moving up and down, provides buffering and stress relief while simultaneously driving a generator to rotate, achieving efficient conversion of external potential energy into clean electrical energy. For high-wave conditions, the device can enhance its structural stiffness by compressing a spring and simultaneously adjusting the water hole structure parameters to create a fluid damping effect, forming a synergistic buffering mechanism by increasing water pressure and using a high-stiffness spring.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module technology, specifically a marine photovoltaic module with self-cleaning function. Background Technology

[0002] As an important carrier for the development of marine clean energy, existing offshore photovoltaic (PV) modules are increasingly widely used, but they still face significant challenges in adapting to different operating conditions. Currently, most mainstream offshore PV modules are fixed in place, rigidly connected to a pile structure, relying primarily on the structural strength of the module itself and the support structure to withstand wave impacts. However, the marine environment is extremely complex and variable. Wave impacts are not only continuous, but their intensity and frequency also dynamically change with meteorological and hydrological conditions. Under long-term effects, fixed-installation PV modules lack effective buffering and stress-relief mechanisms and cannot flexibly adapt to fluctuations in wave loads. This rigid resistance mode easily leads to fatigue damage to the module frame, support connections, and sealing structure, resulting in problems such as seal failure, module breakage, and support deformation. This not only seriously affects the power generation efficiency and service life of the PV modules but also significantly increases subsequent operation and maintenance costs and safety hazards. Therefore, this invention provides an offshore PV module with self-cleaning capabilities. Summary of the Invention

[0003] The purpose of this invention is to provide a marine photovoltaic module with self-cleaning function to solve the problems mentioned in the background art.

[0004] The technical solution of this invention is: a self-cleaning marine photovoltaic module, comprising a mounting frame and bottom piles. The mounting frame has several bottom columns welded to its bottom. Each bottom column has a mounting plate fixedly installed at its bottom. Each mounting plate has a pressure rod fixedly installed at its bottom. Each pressure rod has a limit rod welded to its bottom. Each bottom pile has a cooling cylinder fixedly installed at its top. Each cooling cylinder has a mounting cylinder fixedly installed at its inner bottom. Each mounting cylinder has a rotating cylinder rotatably connected to its top. Each rotating cylinder has a double-helix groove on its inner wall, and several pressure rods are slidably disposed within the corresponding double-helix grooves. Each cooling cylinder has two symmetrical bidirectional hydraulic telescopic cylinders fixedly installed at its top. The top telescopic ends of each pair of adjacent bidirectional hydraulic telescopic cylinders... Each mounting plate is fixedly equipped with a mounting ring, and each mounting ring is connected to a corresponding mounting plate with a spring. When the device is running, the springs buffer and unload the vertically movable photovoltaic modules. At the same time, the reciprocating motion of the photovoltaic modules drives the generator to rotate, achieving efficient conversion of external potential energy into clean electrical energy. In addition, the vertical movement of the photovoltaic modules can synchronously drive the piston rings to reciprocate, driving the filtered seawater to circulate along the outer wall of the generator, thereby precisely cooling the generator during the power generation process. For high wave conditions, the device can increase its structural stiffness by compressing the springs, effectively limiting large displacements to avoid structural damage. During the process of increasing the stiffness of the springs, the structural parameters of the water holes can also be adjusted simultaneously to form a fluid damping effect of "fast water inflow and slow water outflow". By enhancing the water pressure and forming a synergistic buffering mechanism with the high-stiffness springs, the device's ability to resist extreme wave impacts is further improved.

[0005] Preferably, a drive shaft is fixedly installed at the bottom of each rotating drum, and a generator is fixedly installed at the bottom of the inner cavity of each mounting cylinder. The bottom of several drive shafts is fixedly installed to the top input end of the corresponding generator. The mounting plate drives the pressure rod and the limiting rod to move downward. Since the limiting rod is slidably set in the double helical groove, the downwardly moving limiting rod drives the rotating drum to rotate along the trajectory of the double helical groove. The rotating drum drives the drive shaft to rotate, and the drive shaft drives the generator to rotate. Then, with the help of the force of the waves or the impact of the typhoon, the limiting rod moves up and down in reciprocating motion with the help of the spring, thereby driving the rotating drum and the generator input shaft to rotate, realizing the efficient conversion of external potential energy into clean electrical energy.

[0006] Preferably, each mounting plate has two symmetrical push rods welded to its bottom, and a piston ring is welded between the bottoms of each pair of adjacent push rods. Each cooling cylinder has a plurality of water holes one and water holes two circumferentially spaced at equal intervals on its outer ring surface.

[0007] Preferably, a movable ring I is fixedly installed between the bottom telescopic ends of each two adjacent bidirectional hydraulic telescopic cylinders, and two symmetrical connecting rods are welded to the bottom of each movable ring I, and a movable ring II is welded between the bottom of each two adjacent connecting rods.

[0008] Preferably, each of the first and second movable rings has a plurality of equally spaced mounting holes circumferentially formed on its outer ring surface, and each of the second movable rings has a plurality of equally spaced mounting holes circumferentially formed on its outer ring surface. A base is welded to the inner wall of each mounting hole 1 and mounting hole 2, and a baffle is rotatably connected to each base. A spring 2 is connected between each baffle and the corresponding hole wall. When this device is in use, seawater filtered by an external filter enters the upper and lower sides of the piston ring through water holes 1 and 2, respectively, thereby using the lower temperature seawater to cool the generator during the power generation process and ensure the stability of its power generation operation. When the mounting plate moves up and down reciprocally due to the impact of waves or typhoons, the mounting plate drives the piston ring to move up and down reciprocally through a push rod. The reciprocating piston ring pushes the seawater on its upper and lower sides to flow, so that the seawater in its upper and lower cooling cylinders frequently replaces the external seawater and circulates along the outer wall of the generator, thereby enhancing its cooling effect on the generator.

[0009] Preferably, a photovoltaic panel is rotatably connected to the top of each mounting frame, and an electric telescopic rod is movably connected between each photovoltaic panel and the mounting frame.

[0010] Preferably, each of the photovoltaic panels is equipped with a self-cleaning mechanism on its top. In use, the electric telescopic rod drives the photovoltaic panel to rotate at a specific angle to generate electricity, while the self-cleaning mechanism operates intermittently to clean the surface of the photovoltaic panel and ensure its power generation stability.

[0011] Preferably, an impeller is fixedly sleeved on the outer ring surface of the rotating drum. The impeller has several through holes circumferentially pierced at equal intervals at its bottom. The mounting cylinder wall has several through holes 2. The mounting ring 1 has several through holes 3 circumferentially pierced at equal intervals at its bottom. The mounting cylinder wall has an inlet and an outlet. A guide pipe is provided at the inlet, and the through holes 2 are located on the side of the mounting cylinder wall away from the guide pipe. During the reciprocating movement of the piston ring, the water flow will drive the impeller and the rotating drum to rotate in the same direction, thereby assisting the rotating drum to rotate more smoothly, enhancing the stability of the generator operation, reducing potential damage between the pressure rod and the rotating drum, and thus improving its service life.

[0012] This invention provides a self-cleaning marine photovoltaic module, which has the following improvements and advantages compared with the prior art: In summary, during operation, the device utilizes a pair of springs to buffer and unload the vertically movable photovoltaic modules. Simultaneously, the reciprocating motion of the photovoltaic modules drives the generator's rotation, achieving efficient conversion of external potential energy into clean electrical energy. Furthermore, the vertical movement of the photovoltaic modules synchronously drives the piston rings to reciprocate, causing filtered seawater to circulate along the generator's outer wall, thus providing precise heat dissipation and cooling for the generator during power generation. For high-wave conditions, the device can increase the structural stiffness of the springs by compressing them, effectively limiting large displacements to avoid structural damage. During the stiffness increase of the springs, the parameters of the water hole structure can be adjusted simultaneously, creating a "fast inflow, slow outflow" fluid damping effect. By enhancing water pressure and forming a synergistic buffering mechanism with the high-stiffness springs, the device's ability to withstand extreme wave impacts is further improved. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the cooling cylinder structure of the present invention; Figure 3 This is a schematic diagram of the rotating drum structure of the present invention; Figure 4 This is a schematic diagram of the double helix groove structure of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged schematic diagram of part A; Figure 6 This is the present invention. Figure 4 Enlarged schematic diagram of section B structure; Figure 7 This is a schematic diagram of the impeller structure of the present invention; Figure 8 This is the present invention. Figure 7 An enlarged schematic diagram of the C-section structure.

[0014] Explanation of reference numerals in the attached figures: 1. Mounting frame; 2. Bottom pile; 3. Bottom column; 4. Mounting plate; 5. Pressure rod; 6. Limiting rod; 7. Cooling cylinder; 8. Mounting cylinder; 9. Rotating cylinder; 10. Double spiral groove; 11. Two-way hydraulic telescopic cylinder; 12. Mounting ring; 13. Spring 1; 14. Drive shaft; 15. Generator; 16. Push rod; 17. Piston ring; 18. Water hole 1; 19. Water hole 2; 20. Moving ring 1; 21. Connecting rod; 22. Moving ring 2; 23. Mounting hole 1; 24. Mounting hole 2; 25. Base; 26. Baffle; 27. Spring 2; 28. Photovoltaic power generation panel; 29. ​​Electric telescopic rod; 30. Self-cleaning mechanism; 31. Impeller; 32. Through hole 1; 33. Through hole 2; 34. Water inlet; 35. Water outlet; 36. Through hole 3; 37. Guide pipe. Detailed Implementation

[0015] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] This invention provides a self-cleaning marine photovoltaic module through improvements. The technical solution of this invention is as follows: like Figures 1-8 As shown, a self-cleaning marine photovoltaic module includes a mounting frame 1 and a base pile 2. A photovoltaic panel 28 is rotatably connected to the top of each mounting frame 1. An electric telescopic rod 29 is movably connected between each photovoltaic panel 28 and the mounting frame 1. A self-cleaning mechanism 30 is provided on the top of each photovoltaic panel 28. Several base columns 3 are welded to the bottom of the mounting frame 1. A mounting plate 4 is fixedly installed on the bottom of each base column 3. A pressure rod 5 is fixedly installed on the bottom of each mounting plate 4. A limit rod 6 is welded to the bottom of each pressure rod 5. A cooling cylinder 7 is fixedly installed on the top of each base pile 2. An mounting cylinder 8 is fixedly installed at the bottom of the inner cavity of each cooling cylinder 7. A rotating cylinder 9 is rotatably connected to the top of each mounting cylinder 8. A double helical groove 10 is formed on the inner wall of each rotating cylinder 9, and several pressure rods 5 are slidably disposed within the corresponding double helical grooves 10. A pair of... The system consists of two bidirectional hydraulic telescopic cylinders 11. Each pair of adjacent cylinders 11 has a mounting ring 12 fixedly installed between its top telescopic ends. Each mounting ring 12 is connected to a corresponding mounting plate 4 by a spring 13. During operation, the electric telescopic rod 29 drives the photovoltaic panel 28 to rotate at a specific angle for power generation. Simultaneously, the self-cleaning mechanism 30 operates intermittently to clean the surface of the photovoltaic panel 28, ensuring its power generation stability. If the photovoltaic panel 28 is subjected to wave impact or typhoon impact, it moves downwards, causing the mounting frame 1, base column 3, and mounting plate 4 to move downwards. The mounting plate 4 then compresses the spring 13, thus buffering and dissipating the impact on the photovoltaic panel 28, reducing the probability of damage.

[0017] Furthermore, a drive shaft 14 is fixedly installed at the bottom of each rotating drum 9, and a generator 15 is fixedly installed at the bottom of the inner cavity of each mounting cylinder 8. The bottoms of several drive shafts 14 are respectively fixedly installed at the top input end of the corresponding generator 15. The mounting plate 4 drives the pressure rod 5 and the limiting rod 6 to move downward. Since the limiting rod 6 is slidably set in the double helical groove 10, the downwardly moving limiting rod 6 drives the rotating drum 9 to rotate along the trajectory of the double helical groove 10. The rotating drum 9 drives the drive shaft 14 to rotate, and the drive shaft 14 drives the generator 15 to rotate. Then, with the help of the force of the waves or the impact of the typhoon, the limiting rod 6 moves up and down in conjunction with the spring 13, thereby driving the rotating drum 9 and the input shaft of the generator 15 to rotate, realizing the efficient conversion of external potential energy into clean electrical energy.

[0018] Furthermore, each mounting plate 4 has two symmetrical push rods 16 welded to its bottom, and a piston ring 17 is welded between the bottoms of each pair of adjacent push rods 16. Each cooling cylinder 7 has several water holes 18 and 29 evenly spaced on its outer ring surface. A moving ring 20 is fixedly installed between the telescopic ends of each pair of adjacent bidirectional hydraulic telescopic cylinders 11. Each moving ring 20 has two symmetrical connecting rods 21 welded to its bottom, and a moving ring 22 is welded between the bottoms of each pair of adjacent connecting rods 21. Each moving ring 20 has several mounting holes 23 evenly spaced on its outer ring surface, and each moving ring 22 has several mounting holes 24 evenly spaced on its outer ring surface. A base 25 is welded to the inner wall of each mounting hole 23 and mounting hole 24. Each base 25... Each of the five components is rotatably connected to a baffle 26, and each baffle 26 is connected to a corresponding hole wall with a spring 27. When this device is in use, the seawater filtered by the external filter enters the upper and lower sides of the piston ring 17 through water hole 18 and water hole 29 respectively, thereby using the lower temperature seawater to cool the generator 15 during the power generation process and ensure its power generation stability. When the mounting plate 4 is hit by waves or typhoons and moves up and down, the mounting plate 4 drives the piston ring 17 to move up and down through the push rod 16. The reciprocating piston ring 17 pushes the seawater on its upper and lower sides to flow, so that the seawater in the upper and lower cooling cylinders 7 is frequently replaced with the external seawater and circulates along the outer wall of the generator 15, thereby enhancing its cooling effect on the generator 15.

[0019] Furthermore, an impeller 31 is fixedly fitted on the outer ring surface of the rotating drum 9. Several through holes 32 are circumferentially ...

[0020] Working principle: During use, the electric telescopic rod 29 drives the photovoltaic panel 28 to rotate at a specific angle to generate electricity. Simultaneously, the self-cleaning mechanism 30 operates intermittently to clean the surface of the photovoltaic panel 28, ensuring its power generation stability. If it encounters waves or typhoon impacts, the photovoltaic panel 28 moves downwards under the force of the waves or typhoon impacts. The photovoltaic panel 28 drives the mounting frame 1, base column 3, and mounting plate 4. The mounting plate 4 compresses the spring 13 downwards, thus compressing the spring 13 and using the spring 13 to support the photovoltaic panel under impact. The plate 28 implements buffering and stress relief to reduce the probability of damage to the photovoltaic panel 28. In addition, the mounting plate 4 drives the pressure rod 5 and the limiting rod 6 to move downward. Since the limiting rod 6 is slidably set in the double helical groove 10, the downwardly moving limiting rod 6 drives the rotating drum 9 to rotate along the trajectory of the double helical groove 10. The rotating drum 9 drives the transmission shaft 14 to rotate, and the transmission shaft 14 drives the generator 15 to rotate. Then, with the help of the force of the waves or the impact of the typhoon, the spring 13 realizes the up and down reciprocating movement of the limiting rod 6, which in turn drives the rotating drum 9 and the input shaft of the generator 15 to rotate, realizing the external force. It can efficiently convert into clean electrical energy. Furthermore, during operation, seawater filtered through an external filter sequentially enters the upper side of the piston ring 17 through water hole 18, inlet 34, impeller 31, through hole 1 32, through hole 2 33, and outlet 35. Additionally, seawater can also enter the lower side of the piston ring 17 through water hole 2 19, thereby cooling the generator 15 during power generation and ensuring its stable operation. When the mounting plate 4 moves up and down due to wave impact or typhoon shock, the mounting plate 4 drives the piston ring 17 upwards via push rod 16. The reciprocating movement of the piston ring 17 pushes the seawater on its upper and lower sides to flow, causing the seawater in the upper and lower cooling cylinders 7 to frequently exchange with the external seawater and circulate along the outer wall of the generator 15, thereby enhancing its cooling effect on the generator 15. During the reciprocating movement of the piston ring 17, the water flow will drive the impeller 31 and the rotating drum 9 to rotate in the same direction through the guide pipe 37, thereby assisting the rotating drum 9 to rotate more smoothly, enhancing the stability of the generator 15 operation, reducing the probability of damage between the pressure rod 5 and the rotating drum 9, and thus improving its service life. When the device encounters relatively small waves, the bidirectional hydraulic telescopic cylinder 11 and the mounting ring 12 maintain their initial positions, maximizing the buffer stroke and thus ensuring maximum displacement amplitude and power generation efficiency. When the device encounters larger waves, the bidirectional hydraulic telescopic cylinder 11 moves the mounting ring 12 upwards. The upward-moving mounting ring 12 compresses the spring 13, thereby increasing the structural stiffness of the spring 13 and reducing its displacement amplitude, effectively limiting large displacements to avoid structural damage. In addition, when the bidirectional hydraulic telescopic cylinder 11 extends and retracts, it drives the moving ring 20, the connecting rod 21, and the moving ring 22 to move upwards synchronously, so that the mounting hole 23 on the moving ring 20 and the water hole 22 are aligned. Alignment 18: Alignment of mounting hole 24 on moving ring 22 with water hole 29; At this time, when piston ring 17 moves up and down slightly with mounting plate 4, external seawater enters cooling cylinder 7 and remains in its original state. When it is pushed out of cooling cylinder 7 by piston plate, the baffle 26 will flip to a vertical state under the impact of water flow and lie horizontally in the water flow channel of water hole 18 or water hole 29, which reduces the outflow rate of seawater in cooling cylinder 7, thereby increasing the water pressure in cooling cylinder 7 and forming a fluid damping effect of "fast water inflow and slow water outflow". By enhancing water pressure and forming a synergistic buffering mechanism with high stiffness spring 13, the device's ability to resist extreme sea wave impact is further improved.

[0021] The foregoing description enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-cleaning marine photovoltaic module, comprising a mounting frame (1) and a bottom pile (2), characterized in that: The mounting frame (1) has several bottom posts (3) welded to the bottom. Each bottom post (3) has a mounting plate (4) fixedly installed at the bottom. Each mounting plate (4) has a pressure rod (5) fixedly installed at the bottom. Each pressure rod (5) has a limit rod (6) welded to the bottom. Each bottom post (2) has a cooling cylinder (7) fixedly installed at the top. Each cooling cylinder (7) has an mounting cylinder (8) fixedly installed at the bottom of its inner cavity. Each mounting cylinder (8) has a rotating cylinder (9) rotatably connected to its top. Each rotating cylinder (9) has a double spiral groove (10) on its inner wall. Several pressure rods (5) are slidably arranged in the corresponding double spiral groove (10). Each cooling cylinder (7) has two symmetrical bidirectional hydraulic telescopic cylinders (11) fixedly installed at its top. Each pair of adjacent bidirectional hydraulic telescopic cylinders (11) has a mounting ring (12) fixedly installed between the top telescopic ends. Each mounting ring (12) is connected to the corresponding mounting plate (4) by a spring (13).

2. A marine photovoltaic module with self-cleaning function according to claim 1, characterized in that: Each of the rotating drums (9) is fixedly installed with a drive shaft (14) at the bottom, and each of the mounting cylinders (8) is fixedly installed with a generator (15) at the bottom of its inner cavity. The bottoms of several drive shafts (14) are fixedly installed with the top input end of the corresponding generator (15).

3. A marine photovoltaic module with self-cleaning function according to claim 1, characterized in that: Two symmetrical push rods (16) are welded to the bottom of each mounting plate (4), and a piston ring (17) is welded between the bottoms of each two adjacent push rods (16). Several water holes one (18) and water holes two (19) are circumferentially opened at equal intervals on the outer ring surface of each cooling cylinder (7).

4. A marine photovoltaic module with self-cleaning function according to claim 1, characterized in that: A movable ring (20) is fixedly installed between the bottom extension ends of each two adjacent bidirectional hydraulic telescopic cylinders (11). Two symmetrical connecting rods (21) are welded to the bottom of each movable ring (20). A movable ring (22) is welded between the bottom of each two adjacent connecting rods (21).

5. A marine photovoltaic module with self-cleaning function according to claim 4, characterized in that: Each of the moving rings 1 (20) has a number of mounting holes 1 (23) evenly spaced on its outer ring surface, and each of the moving rings 2 (22) has a number of mounting holes 2 (24) evenly spaced on its outer ring surface. Each of the mounting holes 1 (23) and 2 (24) has a base (25) welded to its inner wall. Each of the bases (25) has a baffle (26) rotatably connected to it. Each baffle (26) is connected to the corresponding hole wall with a spring 2 (27).

6. A marine photovoltaic module with self-cleaning function according to claim 1, characterized in that: Each of the mounting frames (1) is rotatably connected to a photovoltaic power generation panel (28) at its top, and each of the photovoltaic power generation panels (28) is movably connected to the mounting frame (1) by an electric telescopic rod (29).

7. A marine photovoltaic module with self-cleaning function according to claim 6, characterized in that: Each of the photovoltaic panels (28) is equipped with a self-cleaning mechanism (30) on its top.

8. A marine photovoltaic module with self-cleaning function according to claim 4, characterized in that: An impeller (31) is fixedly sleeved on the outer ring surface of the rotating cylinder (9). Several through holes (32) are circumferentially opened at equal intervals at the bottom of the impeller (31). Several through holes (33) are circumferentially opened on the cavity wall of the mounting cylinder (8). Several through holes (36) are circumferentially opened at equal intervals at the bottom of the moving ring (20). An inlet (34) and an outlet (35) are opened on the cavity wall of the mounting cylinder (8). A guide pipe (37) is provided at the inlet (34), and the through holes (33) are located on the side of the cavity wall of the mounting cylinder (8) away from the guide pipe (37).

Images