Solar photovoltaic lightning protection device

Abstract

The application is suitable for the photovoltaic power generation technical field, and provides a solar photovoltaic lightning protection device, which comprises a bottom plate, a supporting frame fixedly installed on the top of the bottom plate, an installation plate fixedly installed on the top of the supporting frame, and a plurality of solar photovoltaic panels fixedly installed on the installation plate; a supporting seat fixedly installed on one side of the bottom plate, a threading groove formed in the supporting seat, a hollow column fixedly installed on the top of the supporting seat, a lightning rod fixedly installed on the top end of the hollow column, a down conductor fixedly connected to the bottom of the lightning rod, and the down conductor located inside the hollow column and the threading groove. The solar photovoltaic lightning protection device provided by the scheme solves the problem that the lightning rod for solar photovoltaic lightning protection is not convenient to clean due to surface pollutants, thereby easily causing corrosion of the lightning rod and affecting the tip discharge effect.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic power generation technology, and in particular relates to a solar photovoltaic lightning protection device. Background Technology

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of solar cells to directly convert solar radiation energy into electrical energy. As a major form of solar power generation, it has advantages such as being clean, renewable, and distributed, and is an important component of the future energy system.

[0003] In the application of existing solar photovoltaic equipment, lightning rods are usually installed to protect against lightning damage. However, during long-term use, dust, bird droppings and other pollutants easily accumulate on the surface of lightning rods. Since lightning rods are mostly installed at high places, it is difficult to clean the pollutants on their surface. If these pollutants are not removed, they will not only cause corrosion on the surface of the lightning rod, but also have an adverse effect on its tip discharge effect. Summary of the Invention

[0004] This invention provides a solar photovoltaic lightning protection device, which aims to solve the problem mentioned in the background art that existing lightning rods used for solar photovoltaic lightning protection are prone to corrosion and affect the tip discharge effect due to the inconvenience of cleaning surface contaminants.

[0005] To solve the above problems, the present invention is implemented as follows: a solar photovoltaic lightning protection device, comprising: a base plate, a support frame fixedly installed on the top of the base plate, an mounting plate fixedly installed on the top of the support frame, and multiple solar photovoltaic panels fixedly installed on the mounting plate; a support base fixedly installed on one side of the base plate, the support base having a wire-passing groove, a hollow column fixedly installed on the top of the support base, a lightning rod fixedly installed at the top of the hollow column, a down conductor fixedly connected to the bottom of the lightning rod, the down conductor being located inside the hollow column and the wire-passing groove; a grounding rod fixedly connected to one end of the down conductor for conducting lightning to the ground, the grounding rod being connected to the ground; and a cleaning mechanism assembled on the support base for cleaning the surface of the lightning rod.

[0006] Preferably, the cleaning mechanism includes: an electric push rod fixedly installed on the top of the support base, a support plate fixedly installed on the output rod of the electric push rod, a first annular plate fixedly installed on the top of the support plate, the first annular plate being located outside the hollow column; a second annular plate rotatably installed on the first annular plate, a plurality of support rods fixedly installed on the top of the second annular plate; two housings respectively fixedly installed on the top ends of the plurality of support rods; a plurality of first sliding rods respectively slidably installed on the two housings, each of the plurality of first sliding rods being slidably fitted with a first spring; baffles respectively fixedly installed on the plurality of first sliding rods; two cleaning plates respectively fixedly installed on the plurality of first sliding rods, each of the two cleaning plates being provided with bristles; and two columns fixedly installed on the top of the mounting plate. A single fixing ring is fixedly installed at the top of each of the columns. Multiple crossbars are fixedly installed on the fixing ring, and mounting shells are fixedly installed on each of the crossbars. Each mounting shell has a ball bearing. Two push plates are fixedly installed on the two cleaning plates respectively. A servo motor is fixedly installed on the top of the support base. A first rotating shaft is fixedly installed on the output shaft of the servo motor. A rectangular rod is fixedly installed at the top of the first rotating shaft. A sleeve is slidably fitted on the rectangular rod, and a first support block is rotatably installed on the sleeve. One side of the first support block is fixedly connected to the first annular plate. A drive gear is fixedly fitted on the sleeve. A third annular plate is fixedly installed at the bottom of the second annular plate. A driven gear is fixedly fitted on the third annular plate, and the driven gear meshes with the drive gear.

[0007] Preferably, the same telescopic waterproof sleeve is fixedly installed on the side of the support base and the support plate that are close to each other. The telescopic waterproof sleeve is located outside the electric push rod and is used to cover the electric push rod.

[0008] Preferably, a protective shell is fixedly installed on the top of the support base. The protective shell is located outside the servo motor and is rotatably connected to the first rotating shaft. The protective shell is used to shield the servo motor.

[0009] Preferably, the protective shell has multiple vent holes on both sides, and the multiple vent holes are used to dissipate the heat of the servo motor.

[0010] Preferably, a cover is fixedly installed on both sides of the protective shell, and both covers are used to block the ventilation holes, and the ventilation holes are all inclined.

[0011] Preferably, both push plates are provided with inclined surfaces, both inclined surfaces are located below the plurality of balls, and both push plates are configured in a Z-shape.

[0012] Preferably, the hollow column has two limiting grooves, and each of the two limiting grooves is slidably installed with a limiting block for supporting the first annular plate, and both limiting blocks are fixedly connected to the inner side of the first annular plate.

[0013] Preferably, both the hollow column and the inner wall of the threading groove are provided with an insulating layer, both insulating layers are made of cross-linked polyethylene material, and the threading groove is configured as L-shaped.

[0014] Preferably, the sleeve has a rectangular groove inside, which is adapted to the rectangular rod, and both the driving gear and the driven gear are made of stainless steel.

[0015] Compared with related technologies, the solar photovoltaic lightning protection device provided by the present invention has the following beneficial effects: Compared with existing technologies, the solar photovoltaic lightning protection device provided in this solution, through the cooperation of lightning rods, down conductors and grounding rods, can conduct lightning that threatens solar photovoltaic panels to the ground during thunderstorms, preventing damage to the solar photovoltaic panels. With the use of a cleaning mechanism, the surface of the lightning rod located at a high position can be cleaned instead of manually, removing contaminants such as dust and bird droppings from the surface of the lightning rod, thus avoiding contaminants from corroding the lightning rod or affecting its tip discharge effect, resulting in better performance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a solar photovoltaic lightning protection device provided by the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of a solar photovoltaic lightning protection device provided by the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 for Figure 2 An enlarged structural diagram of section C shown in the figure; Figure 6 for Figure 2 An enlarged structural diagram of part D shown in the figure; Figure 7 for Figure 2 An enlarged structural diagram of part E shown in the figure; Figure 8 for Figure 2 An enlarged structural diagram of part F shown in the figure; Figure 9 for Figure 2 An enlarged structural diagram of part G shown in the figure; Figure 10 for Figure 1 An enlarged structural diagram of section H shown in the figure; Figure 11 This is a schematic diagram of the assembly structure of the fixing ring, crossbar, mounting shell and ball bearings in this invention; Figure 12 This is a schematic diagram of the assembly structure of the first rotating shaft, rectangular rod, sleeve, transmission wheel and belt in this invention; Figure 13 This is a schematic diagram of the assembly structure of the first annular plate, the second annular plate, the fourth annular plate, the first hose, and the second hose in this invention.

[0017] Reference numerals: 1. Base plate; 2. Support frame; 3. Mounting plate; 4. Solar photovoltaic panel; 5. Support base; 6. Hollow column; 7. Lightning rod; 8. Down conductor; 9. Grounding rod; 10. Electric push rod; 11. Support plate; 12. First annular plate; 13. Second annular plate; 14. Support rod; 15. Box body; 16. First sliding rod; 17. First spring; 18. Baffle; 19. Cleaning plate; 20. Brush bristles; 21. Servo motor; 22. First rotating shaft; 23. Rectangular rod; 24. Sleeve; 25. First support block; 26. Drive gear; 27. Third annular plate; 28. Driven gear; 29. ​​Telescopic waterproof sleeve; 30. Protective shell; 31. Cover; 32. Water tank; 3. Cylinder; 34. Pumping pipe; 35. Mounting pipe; 36. Vertical plate; 37. Second sliding rod; 38. Piston; 39. Second spring; 40. Stop block; 41. Second rotating shaft; 42. Transmission wheel; 43. Belt; 44. Cam; 45. Annular groove; 46. First flexible hose; 47. Fourth annular plate; 48. Cavity; 49. Second flexible hose; 50. First arc-shaped plate; 51. Second arc-shaped plate; 52. Rubber ring; 53. Column; 54. Fixing ring; 55. Crossbar; 56. Mounting shell; 57. Ball bearing; 58. Limiting block; 59. Protective cover; 60. Arc-shaped rod; 61. Third spring; 62. Arc-shaped waterproof sleeve; 63. Sealing strip; 64. Second support block; 65. Push plate. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a solar photovoltaic lightning protection device, such as... Figure 1-13As shown, the solar photovoltaic lightning protection device includes: a base plate 1, a support frame 2 fixedly installed on the top of the base plate 1, an mounting plate 3 fixedly installed on the top of the support frame 2, and multiple solar photovoltaic panels 4 fixedly installed on the mounting plate 3; a support base 5 fixedly installed on one side of the base plate 1, the support base 5 having a wire groove, a hollow column 6 fixedly installed on the top of the support base 5, a lightning rod 7 fixedly installed at the top of the hollow column 6, a down conductor 8 fixedly connected to the bottom of the lightning rod 7, the down conductor 8 being located inside the hollow column 6 and the wire groove; a grounding rod 9 fixedly connected to one end of the down conductor 8 for conducting lightning to the ground, the grounding rod 9 being connected to the ground; and a cleaning mechanism mounted on the support base 5 for cleaning the surface of the lightning rod 7.

[0020] In this embodiment, when the device is in use, if a thunderstorm occurs, the lightning rod 7 can capture the lightning current. The current is conducted to the grounding rod 9 through the down conductor 8 at its bottom, and the grounding rod 9 conducts the current into the ground. This effectively protects multiple solar photovoltaic panels 4 from lightning strikes. When the surface of the lightning rod 7 is contaminated with dust, bird droppings, or other pollutants, the cleaning mechanism mounted on the support base 5 is activated to clean the surface of the lightning rod 7, removing the dust, bird droppings, and other pollutants. This prevents the pollutants from corroding the lightning rod 7 or affecting its tip discharge effect, resulting in a better performance.

[0021] In a further preferred embodiment of the present invention, the cleaning mechanism includes: an electric push rod 10 fixedly installed on the top of the support base 5, a support plate 11 fixedly installed on the output rod of the electric push rod 10, a first annular plate 12 fixedly installed on the top of the support plate 11, the first annular plate 12 being located outside the hollow column 6; a second annular plate 13 rotatably installed on the first annular plate 12, a plurality of support rods 14 fixedly installed on the top of the second annular plate 13; two housings 15 respectively fixedly installed on the top ends of the plurality of support rods 14; a plurality of first sliding rods 16 respectively slidably installed on the two housings 15, each of the plurality of first sliding rods 16 being slidably fitted with a first spring 17; baffles 18 respectively fixedly installed on the plurality of first sliding rods 16; two cleaning plates 19 respectively fixedly installed on the plurality of first sliding rods 16, each of the two cleaning plates 19 being provided with bristles 20; and two columns 53 fixedly installed on the top of the mounting plate 3. The top of each column 53 is fixedly mounted with a common fixing ring 54, and multiple crossbars 55 are fixedly mounted on the fixing ring 54. Each of the multiple crossbars 55 is fixedly mounted with a mounting shell 56, and each of the multiple mounting shells 56 is provided with a ball bearing 57. Two push plates 65 are fixedly mounted on the two cleaning plates 19 respectively. A servo motor 21 is fixedly mounted on the top of the support base 5. A first rotating shaft 22 is fixedly mounted on the output shaft of the servo motor 21. A rectangular rod 23 is fixedly mounted on the top of the first rotating shaft 22. A sleeve 24 is slidably sleeved on the rectangular rod 23. A first support block 25 is rotatably mounted on the sleeve 24. One side of the first support block 25 is fixedly connected to the first annular plate 12. A drive gear 26 is fixedly sleeved on the sleeve 24. A third annular plate 27 is fixedly mounted on the bottom of the second annular plate 13. A driven gear 28 is fixedly sleeved on the third annular plate 27. The driven gear 28 meshes with the drive gear 26.

[0022] In this embodiment, when the cleaning mechanism is needed to clean the surface of the lightning rod 7, the electric push rod 10 is activated. The output rod of the electric push rod 10 extends, causing the support plate 11 to move upward. The support plate 11 causes the first annular plate 12 to move upward synchronously. The first annular plate 12 drives the sleeve 24 to slide upward along the rectangular rod 23 through the first support block 25. At the same time, the first annular plate 12 causes the second annular plate 13, support rod 14, housing 15, cleaning plate 19 and push plate 65 to move upward together. When the push plate 65 moves to the corresponding position... Then it will come into contact with the ball bearing 57. Under the squeezing action of the ball bearing 57, the push plate 65 will push the cleaning plate 19 closer to the lightning rod 7. At this time, the first slide rod 16 fixed to the cleaning plate 19 will slide on the housing 15. The baffle 18 fixed on the first slide rod 16 will squeeze the first spring 17 until the bristles 20 on the cleaning plate 19 are in contact with the surface of the lightning rod 7. Then the servo motor 21 is started. The output shaft of the servo motor 21 drives the first rotating shaft 22 to rotate. The first rotating shaft 22 drives the rectangular rod 23 to rotate. 23 drives the sleeve 24 to rotate, which in turn drives the drive gear 26 to rotate. The drive gear 26 meshes with the driven gear 28 on the third annular plate 27, thereby driving the third annular plate 27 and the second annular plate 13 to rotate around the first annular plate 12. The second annular plate 13, through the support rod 14, drives the housing 15 and the cleaning plate 19 to rotate around the lightning rod 7, allowing the bristles 20 on the cleaning plate 19 to clean contaminants on the surface of the lightning rod 7. This effectively removes dust, bird droppings, and other contaminants from the surface of the lightning rod 7 without requiring manual climbing. It can effectively prevent pollutants from corroding the surface of the lightning rod 7 and affecting its tip discharge effect. After cleaning, turn off the servo motor 21 and start the electric push rod 10 to retract the output rod of the electric push rod 10, which will drive the components to reset. During the reset process, the push plate 65 will disengage from the ball 57, so that the first spring 17 can push the baffle 18 to move in the opposite direction by its own elasticity. The baffle 18 will drive the first slide rod 16 to slide on the housing 15. The first slide rod 16 will drive the cleaning plate 19, the brush bristles 20 and the push plate 65 to move in the opposite direction until reset.

[0023] In a further preferred embodiment of the present invention, the same telescopic waterproof sleeve 29 is fixedly installed on the side of the support base 5 and the support plate 11 that are close to each other. The telescopic waterproof sleeve 29 is located outside the electric push rod 10 and is used to cover the electric push rod 10.

[0024] In this embodiment, the use of the telescopic waterproof sleeve 29 can protect the electric push rod 10, preventing it from being corroded by rainwater and thus extending its service life.

[0025] In a further preferred embodiment of the present invention, a protective shell 30 is fixedly installed on the top of the support base 5. The protective shell 30 is located outside the servo motor 21. The protective shell 30 is rotatably connected to the first rotating shaft 22. The protective shell 30 is used to shield the servo motor 21.

[0026] In this embodiment, the use of the protective shell 30 can protect the servo motor 21 from rain, preventing it from being corroded by rainwater outdoors. This can improve the performance of the servo motor 21 during long-term use and also help extend its service life.

[0027] In a further preferred embodiment of the present invention, a plurality of vent holes are provided on both sides of the protective shell 30, and the plurality of vent holes are used to dissipate the heat of the servo motor 21.

[0028] In this embodiment, the use of multiple vents can effectively dissipate the heat generated by the servo motor 21 during operation from the protective shell 30, so as to prevent the internal temperature of the protective shell 30 from being too high and affecting the operation of the servo motor 21.

[0029] In a further preferred embodiment of the present invention, a cover 31 is fixedly installed on both sides of the protective shell 30, and both covers 31 are used to block the ventilation holes, and the plurality of ventilation holes are inclined.

[0030] In this embodiment, the inclined ventilation holes prevent rainwater from entering the interior of the protective shell 30. The use of the cover 31 prevents rainwater from contacting the ventilation holes, thereby further reducing the amount of rainwater entering the protective shell 30 and further protecting the servo motor 21.

[0031] In a further preferred embodiment of the present invention, both push plates 65 are provided with inclined surfaces, both inclined surfaces are located below the plurality of balls 57, and both push plates 65 are configured as Z-shaped.

[0032] In this embodiment, the inclined surfaces on the two push plates 65 enable the ball bearing 57 to smoothly push the push plate 65 towards the lightning rod 7, thereby allowing the bristles 20 on the cleaning plate 19 to quickly come into contact with the surface of the lightning rod 7.

[0033] In a further preferred embodiment of the present invention, two limiting grooves are provided on the hollow column 6, and limiting blocks 58 for supporting the first annular plate 12 are slidably installed on both limiting grooves. Both limiting blocks 58 are fixedly connected to the inner side of the first annular plate 12.

[0034] In this embodiment, the use of the limiting groove and the limiting block 58 together can provide a certain support for the first annular plate 12, which can reduce the torque brought by the first annular plate 12 to the electric push rod 10. When the first annular plate 12 performs lifting and lowering operations, the limiting block 58 connected to it will slide vertically on the limiting groove at the same time.

[0035] In a further preferred embodiment of the present invention, both the hollow column 6 and the inner wall of the threading groove are provided with an insulating layer, both insulating layers are made of cross-linked polyethylene material, and the threading groove is configured as L-shaped.

[0036] In this embodiment, the wire-passing groove on the support base 5 is L-shaped to accommodate the routing trajectory of the down conductor 8, enabling a smooth transition of the down conductor 8 from the inside of the hollow column 6 to the grounding rod 9. Simultaneously, both the inner walls of the hollow column 6 and the wire-passing groove are provided with insulating layers, and both insulating layers are made of cross-linked polyethylene material. This material possesses excellent insulation and corrosion resistance, providing comprehensive insulation protection for the down conductor 8 located inside the hollow column 6 and the wire-passing groove. This effectively isolates the conductive connection between the down conductor 8 and the hollow column 6 and the support base 5, preventing leakage of lightning current during conduction.

[0037] In a further preferred embodiment of the present invention, the sleeve 24 is provided with a rectangular groove inside, the rectangular groove is adapted to the rectangular rod 23, and the driving gear 26 and the driven gear 28 are both made of stainless steel.

[0038] In this embodiment, the sleeve 24 has a rectangular groove inside, which is adapted to the rectangular rod 23, so that the rectangular rod 23 can be stably embedded in the rectangular groove of the sleeve 24. When the servo motor 21 starts and drives the first rotating shaft 22 to rotate, the first rotating shaft 22 will drive the rectangular rod 23 to rotate synchronously. Due to the adapted fit between the rectangular groove and the rectangular rod 23, the rectangular rod 23 can drive the sleeve 24 to rotate synchronously, thereby driving the drive gear 26 fixedly sleeved on the sleeve 24 to rotate, while not affecting the axial sliding of the sleeve 24 along the rectangular rod 23. At the same time, both the drive gear 26 and the driven gear 28 are made of stainless steel, which can make full use of the excellent properties of stainless steel, ensuring that the drive gear 26 and the driven gear 28 can resist the corrosion of harsh environments such as outdoor wind and rain during long-term meshing transmission, and avoid rust damage.

[0039] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, a water spraying mechanism for wetting contaminants on the surface of the lightning rod 7 is installed on the base plate 1 and the cleaning mechanism. The water spraying mechanism includes: a water tank 32 fixedly installed on the top of the base plate 1, a cylinder 33 fixedly installed on the top of the water tank 32, a water suction pipe 34 fixedly installed on the cylinder 33, one end of the water suction pipe 34 extending into the interior of the water tank 32, and a first one-way valve provided on the water suction pipe 34; an installation pipe 35 fixedly installed on the cylinder 33, and a second one-way valve provided on the installation pipe 35; and a water tank fixedly installed on the cleaning mechanism. The top of the cylinder 32 has a vertical plate 36 on which multiple second slide rods 37 are slidably mounted. One end of each second slide rod 37 is fixedly mounted with the same piston 38, which is slidably connected to the inner wall of the cylinder 33. Multiple second springs 39 are slidably sleeved on the second slide rods 37. A stop block 40 is fixedly mounted on the second slide rods 37, and the stop block 40 contacts the multiple second springs 39. A second rotating shaft 41 is rotatably mounted on the top of the bottom plate 1. Both the second rotating shaft 41 and the first rotating shaft 22 are fixedly sleeved with... A transmission wheel 42, with the same belt 43 fitted on both transmission wheels 42; a cam 44 fixedly fitted on the second rotating shaft 41, the cam 44 contacting one side of the stop block 40; an annular groove 45 formed on the first annular plate 12; a first flexible hose 46 fixedly installed between the first annular plate 12 and the mounting tube 35, the first flexible hose 46 communicating with the mounting tube 35 and the annular groove 45; a fourth annular plate 47 rotatably mounted on the annular groove 45; and belts respectively formed on the two... The cleaning plate 19 has two cavities 48, each with multiple water outlet holes on its inner wall; two second hoses 49 are fixedly installed on the fourth annular plate 47, each connected to the annular groove 45, with one end of each hose fixedly connected to the two cleaning plates 19 and connected to the interior of each cavity 48; and two second support blocks 64 are rotatably installed on the second rotating shaft 41, with one side of each support block 64 fixedly connected to the support frame 2.

[0040] In this embodiment, when the cleaning mechanism cleans the surface of the lightning rod 7, the first rotating shaft 22 driven by the servo motor 21 drives the second rotating shaft 41 to rotate on the base plate 1 through two transmission wheels 42 and a belt 43. The second rotating shaft 41 drives the cam 44 to rotate continuously. During the rotation of the cam 44, it continuously presses the stop block 40. The stop block 40 drives multiple second sliding rods 37 to slide along the vertical plate 36. The second sliding rods 37 drive the piston 38 to slide along the inner wall of the cylinder 33. At the same time, the second spring 3 on the second sliding rod 37... When the cam 44 rotates to the position of the non-compression stop 40, the second spring 39 resets, causing the stop 40, the second slide rod 37, and the piston 38 to slide in the opposite direction. This reciprocating motion of the piston 38 within the cylinder 33 causes the water pumping pipe 34 to draw water from the water tank 32 into the cylinder 33. Subsequently, the water in the cylinder 33 enters the mounting pipe 35. Since the water pumping pipe 34 and the mounting pipe 35 are respectively equipped with a first check valve and a second check valve, backflow of water can be prevented. Water entering the installation pipe 35 flows from the first hose 46 into the annular groove 45 on the first annular plate 12, and then into the two second hoses 49. The two second hoses 49 deliver water to the cavities 48 on the two cleaning plates 19, and finally out through multiple water outlets, wetting the surface of the lightning rod 7. This improves the cleaning effect of the bristles 20 on the two cleaning plates 19 on contaminants. If it is necessary to soak the surface of the lightning rod 7 with this water to remove contaminants that are difficult to clean, the operation of the servo motor 21 can be turned off, allowing the two... The water between the cleaning plates 19 can soak the contaminants on the surface of the lightning rod 7. After soaking for a period of time, the contaminants that are difficult to clean on the surface of the lightning rod 7 will soften. Then, after starting the servo motor 21, the bristles 20 can easily clean the contaminants off the surface of the lightning rod 7, so that the contaminants on the surface of the lightning rod 7 can be cleaned more thoroughly. During the cleaning process, the cleaning plates 19 that drive the bristles 20 to rotate will simultaneously drive the second hose 49 to rotate. The second hose 49 will drive the fourth annular plate 47 to rotate in the annular groove 45.

[0041] In another embodiment of the present invention, the edges of the two cleaning plates 19 are provided with rubber strips for sealing, the inner sides of the two cleaning plates 19 are both set as arc-shaped, a first arc-shaped plate 50 is fixedly installed on the inner sides of the two cleaning plates 19, a second arc-shaped plate 51 is fixedly installed on the top of the two first arc-shaped plates 50, a rubber ring 52 is fixedly sleeved on the lightning rod 7, and an annular groove is opened at the bottom of the rubber ring 52, the annular groove being adapted to the two second arc-shaped plates 51.

[0042] In this embodiment, when the bristles 20 on the two cleaning plates 19 come into contact with the lightning rod 7, the rubber strips on the edges of the two cleaning plates 19 will come into contact with each other. At the same time, the inner sides of the two first arc-shaped plates 50 will come into contact with the lightning rod 7, and the two second arc-shaped plates 51 will stick together and be fastened in the annular groove at the bottom of the rubber ring 52. Thus, when the contaminants on the surface of the lightning rod 7 are soaked in water, water leakage between the two cleaning plates 19 can be effectively prevented.

[0043] In another embodiment of the present invention, two shielding mechanisms for blocking sunlight and rain are installed on the fixing ring 54. The shielding mechanism includes: a protective cover 59 hinged to the fixing ring 54, an arc-shaped rod 60 fixedly installed on the protective cover 59, the arc-shaped rod 60 being slidably connected to the fixing ring 54, and a third spring 61 slidably sleeved on the arc-shaped rod 60; and a sealing strip 63 fixedly installed on the protective cover 59.

[0044] In this embodiment, when the cleaning plate 19 moves upward, it comes into contact with the protective cover 59 and rotates the protective cover 59 on the fixing ring 54 by squeezing, causing the protective covers 59 on both sides to open to the sides. The protective cover 59 drives the arc rod 60 to slide on the fixing ring 54. At the same time, the protective cover 59 also squeezes the third spring 61. When the cleaning plate 19 moves downward, the third spring 61 pushes the protective cover 59 to rotate in the opposite direction on the fixing ring 54 through its own elasticity, so that the sealing strips 63 on the two protective covers 59 on both sides fit together and the middle of the two sealing strips 63 is tightly pressed against the surface of the lightning rod 7. The protective cover 59 will also drive the arc rod 60 to reset. In this way, when the cleaning mechanism is used, the protective covers 59 on both sides can open automatically. After the cleaning mechanism is used, the two protective covers 59 can automatically reset, so that the two protective covers 59 can provide sun and rain protection for the components below, thereby reducing the aging of the components below in long-term use and reducing the maintenance costs of the device in long-term use.

[0045] In another embodiment of the present invention, an arc-shaped waterproof sleeve 62 is provided on the outside of the third spring 61, and the two ends of the arc-shaped waterproof sleeve 62 are fixedly connected to the protective cover 59 and the fixing ring 54, respectively.

[0046] In this embodiment, the use of the arc-shaped waterproof sleeve 62 can protect the third spring 61 from rainwater, thus preventing the third spring 61 from having a reduced service life due to contact with rainwater.

[0047] In summary, compared with related technologies, this device, through the cooperation of the lightning rod 7, the down conductor 8, and the grounding rod 9, can conduct lightning that threatens the solar photovoltaic panel 4 to the ground during thunderstorms, preventing damage to the solar photovoltaic panel 4. The cleaning mechanism can replace manual cleaning of the surface of the lightning rod 7 located at a high position, removing dust, bird droppings, and other contaminants from the surface of the lightning rod 7, thus preventing contaminants from corroding the lightning rod 7 or affecting its tip discharge effect. Therefore, it has a better performance.

[0048] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A solar photovoltaic lightning protection device, characterized in that, include: A base plate, on the top of which a support frame is fixedly installed, and on the top of which an mounting plate is fixedly installed, and on which multiple solar photovoltaic panels are fixedly installed; A support base is fixedly installed on one side of the base plate. A wire-passing groove is provided on the support base. A hollow column is fixedly installed on the top of the support base. A lightning rod is fixedly installed on the top of the hollow column. A down conductor is fixedly connected to the bottom of the lightning rod. The down conductor is located inside the hollow column and the wire-passing groove. A grounding rod is fixedly connected to one end of the down conductor to conduct lightning strikes to the ground; the grounding rod is connected to the ground. A cleaning mechanism for cleaning the surface of the lightning rod, mounted on the support.

2. The solar photovoltaic lightning protection device as described in claim 1, characterized in that, The cleaning facility includes: An electric push rod is fixedly installed on the top of the support base. A support plate is fixedly installed on the output rod of the electric push rod. A first annular plate is fixedly installed on the top of the support plate. The first annular plate is located outside the hollow column. A second annular plate is rotatably mounted on the first annular plate, and a plurality of support rods are fixedly mounted on the top of the second annular plate; Two boxes are respectively fixedly installed on the top of the multiple support rods; Multiple first slide rods are slidably installed on the two boxes respectively, and each of the multiple first slide rods is slidably sleeved with a first spring; baffles are respectively fixedly installed on multiple first slide bars; Two cleaning plates are respectively fixedly installed on multiple first sliding rods, and each of the two cleaning plates is provided with brush bristles; Two columns are fixedly installed on the top of the mounting plate. The top of the two columns is fixedly installed with the same fixing ring. Multiple crossbars are fixedly installed on the fixing ring. Mounting shells are fixedly installed on the multiple crossbars. Ball bearings are provided on the multiple mounting shells. Two push plates are respectively fixedly installed on the two cleaning plates; A servo motor is fixedly installed on the top of the support base. A first rotating shaft is fixedly installed on the output shaft of the servo motor. A rectangular rod is fixedly installed on the top of the first rotating shaft. A sleeve is slidably sleeved on the rectangular rod. A first support block is rotatably installed on the sleeve. One side of the first support block is fixedly connected to the first annular plate. A drive gear fixedly sleeved on the sleeve; A third annular plate is fixedly installed at the bottom of the second annular plate, and a driven gear is fixedly sleeved on the third annular plate, the driven gear meshing with the driving gear.

3. The solar photovoltaic lightning protection device as described in claim 2, characterized in that, The same telescopic waterproof sleeve is fixedly installed on the side of the support base and the support plate that are close to each other. The telescopic waterproof sleeve is located outside the electric push rod and is used to cover the electric push rod.

4. The solar photovoltaic lightning protection device as described in claim 2, characterized in that, A protective shell is fixedly installed on the top of the support base. The protective shell is located outside the servo motor and is rotatably connected to the first rotating shaft. The protective shell is used to shield the servo motor.

5. The solar photovoltaic lightning protection device as described in claim 4, characterized in that, The protective shell has multiple vent holes on both sides, which are used to dissipate the heat of the servo motor.

6. The solar photovoltaic lightning protection device as described in claim 5, characterized in that, Both sides of the protective shell are fixedly installed with covers, both of which are used to block the ventilation holes, and the ventilation holes are all set at an angle.

7. The solar photovoltaic lightning protection device as described in claim 2, characterized in that, Both push plates are provided with inclined surfaces, both inclined surfaces are located below the plurality of balls, and both push plates are configured in a Z-shape.

8. The solar photovoltaic lightning protection device as described in claim 2, characterized in that, Two limiting grooves are provided on the hollow column, and a limiting block for supporting the first annular plate is slidably installed on each of the two limiting grooves. Both limiting blocks are fixedly connected to the inner side of the first annular plate.

9. The solar photovoltaic lightning protection device as described in claim 1, characterized in that, The hollow column and the inner wall of the threading groove are both provided with an insulating layer, both of which are made of cross-linked polyethylene material, and the threading groove is configured as an L-shape.

10. The solar photovoltaic lightning protection device as described in claim 2, characterized in that, The sleeve has a rectangular groove inside, which is adapted to the rectangular rod. Both the driving gear and the driven gear are made of stainless steel.

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