Photovoltaic panel cleaning device capable of avoiding abrasion of coating

Abstract

The photovoltaic panel cleaning device capable of preventing the coating from being abraded comprises two sets of corresponding moving parts, the two moving parts are connected through a cross beam, a plurality of clamping assemblies are arranged on the moving parts, and the clamping assemblies are used for applying pressure to photovoltaic panels so that the moving parts can move on the photovoltaic panels. A spraying and cleaning assembly is arranged on the cross beam; the spray cleaning assembly comprises a cleaning top plate slidably connected with the moving part, a plurality of cleaning nozzles are evenly distributed on the cleaning top plate, each cleaning nozzle comprises a rotatable switching turntable, the outer wall of the switching turntable is sleeved with a worm gear, the cleaning top plate is further rotatably provided with an adjusting rod, and a worm is arranged at the position, corresponding to the worm gear, of the adjusting rod. And the worm gear is in transmission connection with the worm. Sediment and dust on the photovoltaic panel can be effectively removed through the cleaning nozzle, and coating abrasion caused by friction between the sediment and dust and a coating of the photovoltaic panel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel cleaning, specifically a photovoltaic panel cleaning device that avoids wear on the coating. Background Technology

[0002] Currently, with the advancement of technology, the power generation of photovoltaic (PV) panels is increasing year by year. To extend their lifespan, PV panels are typically coated, such as with ETFE, which can easily withstand high temperatures while improving the conversion efficiency of the PV panel. ETFE is based on the highly stable ethylene molecule, capable of withstanding high levels of thermal stress and volatile chemicals. Furthermore, ETFE is completely opaque to ultraviolet light, allowing maximum sunlight to penetrate the solar panel. However, with increased outdoor use, dust and dirt gradually accumulate on the surface of the PV panel. Existing PV panel cleaning devices typically use brushes to scrub the panels, but during cleaning, the mixture of dust and dirt can damage the coating due to repeated friction from the brush. Once the coating is worn, the uneven aging of the PV panel will significantly increase, thus reducing its lifespan. To address this, we propose a PV panel cleaning device that avoids damaging the coating. Utility Model Content

[0003] To overcome the shortcomings of existing cleaning technologies where the mixture of dust and dirt can damage the photovoltaic panel coating due to repeated friction of the brush bristles, this invention provides a photovoltaic panel cleaning device that avoids coating abrasion through non-contact cleaning.

[0004] The present invention adopts the following technical solution.

[0005] A photovoltaic panel cleaning device that avoids abrasion of the coating includes two corresponding moving parts connected by a crossbeam. Each moving part is provided with a plurality of clamping components, which are used to apply pressure to the photovoltaic panel so that the moving parts can move smoothly on the photovoltaic panel. A spray cleaning component is provided on the crossbeam.

[0006] The spray cleaning assembly includes a cleaning top plate slidably connected to the moving part. Multiple cleaning nozzles are evenly distributed on the cleaning top plate. Each cleaning nozzle includes a rotatable switching turntable. A worm gear is fitted on the outer wall of the switching turntable. An adjusting rod is also rotatably provided on the cleaning top plate. A worm is provided on the adjusting rod at a position corresponding to the worm gear. The worm gear and the worm are connected in a driving connection.

[0007] The clamping assembly includes a clamping rod slidably connected to the moving part, a pressure spring is provided between the clamping rod and the moving part, and a rubber caster is rotatably provided at the lower end of the clamping rod.

[0008] Preferably, the side wall of the moving part is also provided with a water tank, and the water tanks on both sides respectively store clean water and pre-washing liquid.

[0009] Preferably, the cleaning nozzle further includes a manifold and a shield, the manifold being connected to the water tanks on both sides via flexible water pipes, and the manifold being provided with a protruding outlet.

[0010] Preferably, the switching turntable includes a cross-shaped water outlet and a fan-shaped water outlet; in use, the outlet is aligned with one of the cross-shaped water outlet or the fan-shaped water outlet.

[0011] Preferably, the moving part is rotatably provided with a lead screw, the cleaning top plate is threadedly connected to the lead screw, and one end of the lead screw is connected to a lifting motor.

[0012] Preferably, gears are provided at both ends of the adjusting rod, and a rack is provided on the moving part, the rack meshing with the gears.

[0013] Preferably, the moving part is further provided with a drive wheel, the drive wheel is connected to the output end of a drive motor, and the drive motor is fixed to the side wall of the moving part.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model proposes a photovoltaic panel cleaning device to avoid wear on the coating, including two sets of corresponding moving parts connected by a crossbeam. Several clamping assemblies are provided on the moving parts, which apply pressure to the photovoltaic panel to allow the moving parts to move on the panel. A spray cleaning assembly is provided on the crossbeam. The spray cleaning assembly includes a cleaning top plate slidably connected to the moving parts, with multiple cleaning nozzles evenly distributed on the top plate. Each nozzle includes a rotatable switching turntable, the outer wall of which is fitted with a worm gear. An adjusting rod is rotatably provided on the top plate, with a worm gear positioned at the corresponding position of the worm gear, and the worm gear and worm gear are connected in a transmission manner. The clamping assembly includes a clamping rod slidably connected to the moving parts, with a pressure spring between the clamping rod and the moving parts. A rubber caster is rotatably provided at the lower end of the clamping rod. The clamping assembly allows the cleaning device to move stably on the photovoltaic panel. The cleaning nozzle sprays cleaning fluid towards the photovoltaic panel, and the adjustment rod can rotate the switching dial of the cleaning nozzle to switch the spraying mode of the cleaning nozzle, thereby better removing mud and dust from the photovoltaic panel and avoiding coating wear caused by friction between mud and dust and the photovoltaic panel coating. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of the cleaning nozzle in one embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Moving part; 11. Clamping rod; 12. Pressure spring; 13. Rubber caster; 14. Water tank; 15. Lead screw; 16. Lifting motor; 17. Rack; 18. Drive wheel; 19. Drive motor; 2. Crossbeam; 31. Cleaning top plate; 311. Adjusting rod; 3111. Gear; 312. Worm gear; 32. Cleaning nozzle; 321. Switching turntable; 3211. Cross-shaped water outlet; 3212. Fan-shaped water outlet; 322. Worm gear; 323. Cover shell; 324. Manifold; 3241. Outlet. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0022] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] As attached Figure 1-3 The photovoltaic panel cleaning device shown includes two corresponding moving parts 1, which are connected by a crossbeam 2. Several clamping components are provided on the moving parts 1 to apply pressure to the photovoltaic panel so that the moving parts 1 can move stably on the photovoltaic panel. Spray cleaning components are provided on the crossbeam 2.

[0024] The spray cleaning assembly includes a cleaning top plate 31 slidably connected to the moving part 1. Multiple cleaning nozzles 32 are evenly distributed on the cleaning top plate 31. Each cleaning nozzle 32 includes a rotatable switching turntable 321. A worm gear 322 is fitted on the outer wall of the switching turntable 321. An adjusting rod 311 is also rotatably provided on the cleaning top plate 31. A worm 312 is provided on the adjusting rod 311 at the position corresponding to the worm gear 322. The worm gear 322 and the worm 312 are connected in a transmission manner.

[0025] The clamping assembly includes a clamping rod 11 slidably connected to the moving part 1. A pressure spring 12 is provided between the clamping rod 11 and the moving part 1. A rubber caster 13 is rotatably provided at the lower end of the clamping rod 11. The pressure spring 12 applies pressure to the photovoltaic panel, allowing the moving part 1 to move smoothly on the photovoltaic panel.

[0026] In some embodiments, the side wall of the action unit 1 is also provided with a water tank 14, and the two water tanks 14 on both sides store clean water and pre-washing liquid respectively. The pre-washing liquid is a neutral liquid that will not damage or corrode the coating, will not cause scratches, and will not cause any damage to the outer surface or interior of the photovoltaic panel; it can quickly form a film on the surface of the washed photovoltaic panel to prevent dust, dirt and other substances from adhering to the car paint, and can also effectively remove static electricity from the surface of the photovoltaic panel to prevent dust adsorption.

[0027] In some embodiments, the cleaning nozzle 32 further includes a manifold 324 and a shield 323. The manifold 324 is connected to the water tanks 14 on both sides via flexible water pipes, and the manifold 324 is provided with a protruding outlet 3241. Each water tank 14 is equipped with a water pump to deliver the liquid in the water tank 14 to the manifold 324.

[0028] In some embodiments, the switching turntable 321 includes a cross-shaped water outlet 3211 and a fan-shaped water outlet 3212; during use, the water outlets are aligned with either the cross-shaped water outlet 3211 or the fan-shaped water outlet 3212. The cross-shaped water outlet 3211 is a dedicated nozzle for pre-washing liquid, which can generate sufficient foam from the pre-washing liquid to effectively reduce the adhesion of dust and dirt on the photovoltaic panel. The fan-shaped water outlet 3212 is a dedicated nozzle for clean water, which can increase the spray pressure of clean water to wash away dust and dirt from the photovoltaic panel.

[0029] In some embodiments, the moving part 1 is rotatably provided with a lead screw 15, and the cleaning top plate 31 is threadedly connected to the lead screw 15. One end of the lead screw 15 is connected to a lifting motor 16. The lifting motor 16 drives the lead screw 15 to rotate by rotation, thereby driving the cleaning top plate 31 to move in the vertical direction.

[0030] In some embodiments, gears 3111 are provided at both ends of the adjusting rod 311, and a rack 17 is provided on the moving part 1, with the rack 17 meshing with the gears 3111. When the cleaning top plate 31 moves in the vertical direction, the gears 3111 and the rack 17 are displaced relative to each other, thereby causing the rack 17 to drive the gears 3111 to rotate, which in turn drives the adjusting rod 311 to rotate. At the same time, the worm gear 312 on the adjusting rod 311 drives the worm wheel 322 to rotate, ultimately completing the switching of the spray mode of the cleaning nozzle 32.

[0031] In some embodiments, the moving part 1 is further provided with a drive wheel 18, which is connected to the output end of a drive motor 19, and the drive motor 19 is fixed to the side wall of the moving part 1. The drive wheel 18 rotates, thereby driving the moving part 1 to move on the photovoltaic panel.

[0032] The working principle of this utility model is as follows:

[0033] When in use, the cleaning device is first fixed to the photovoltaic panel. Through the clamping components, the rubber casters 13 abut against the upper surface of the photovoltaic panel, and the drive wheel 18 abuts against the lower surface of the photovoltaic panel, thereby realizing the stable movement of the cleaning device on the photovoltaic panel.

[0034] Furthermore, at this point, the cleaning top plate 31 is at its lowest point of travel, and the outlet 3241 of the cleaning nozzle 32 is aligned with the cross-shaped water outlet 3211. The water tank 14 containing pre-wash liquid is pumped into the manifold 324 by a water pump, while the water pump in the water tank 14 containing clean water is not operating. The pre-wash liquid will generate sufficient foam when passing through the cross-shaped water outlet 3211. Since the foam is relatively lightweight, the cleaning top plate 31 is at its lowest point of travel to avoid the influence of wind. The drive motor 19 drives the drive wheel 18 to rotate, thereby moving the cleaning device on the photovoltaic panel and uniformly spraying the pre-wash liquid foam onto the surface of the photovoltaic panel.

[0035] Next, the lifting motor 16 is started, which drives the lead screw 15 to rotate, thereby moving the cleaning top plate 31 upward. When the cleaning top plate 31 moves vertically, the gear and rack 17 are relatively displaced, causing the rack 17 to drive the gear to rotate, which in turn drives the adjusting rod 311 to rotate. At the same time, the worm gear 312 on the adjusting rod 311 drives the worm wheel 322 to rotate, so that the outlet 3241 aligns with the fan-shaped water outlet 3212. The water tank 14, which contains clean water, is pumped to the manifold 324 by a water pump, while the water pump in the water tank 14, which contains pre-washing liquid, does not operate. When the clean water passes through the fan-shaped water outlet 3212, it will achieve a high flow rate. At this time, the cleaning top plate 31 is at its highest point of travel to avoid excessive pressure due to the small area of ​​the high-speed water flow, which could damage the photovoltaic panel coating, while ensuring sufficient impact force to wash away the dust on the photovoltaic panel.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A photovoltaic panel cleaning device that avoids wearing the coating, comprising two corresponding moving parts, characterized in that, Two said action parts are connected by a crossbeam, a plurality of clamping assemblies are arranged on the action parts, the clamping assemblies are used to apply pressure to the photovoltaic panel so that the action parts can move smoothly on the photovoltaic panel, and a spraying cleaning assembly is arranged on the crossbeam; The spraying cleaning assembly comprises a cleaning top plate in sliding connection with the action part, a plurality of cleaning nozzles are uniformly distributed on the cleaning top plate, the cleaning nozzle comprises a rotatable switching turntable, a worm gear is sleeved on the outer wall of the switching turntable, the cleaning top plate is also rotatably provided with an adjusting rod, the adjusting rod is provided with a worm at a position corresponding to the worm gear, and the worm gear is in transmission connection with the worm. The clamping assembly comprises a clamping rod in sliding connection with the action part, a pressurizing spring is arranged between the clamping rod and the action part, and a rubber caster is rotatably arranged at the lower end of the clamping rod.

2. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 1, characterized in that, The side wall of the action part is also provided with a water tank, and the water tanks on both sides store clean water and pre-washing liquid respectively.

3. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 2, characterized in that, The cleaning nozzle further comprises a current collector and a cover shell, the current collector is in communication with the water tanks on both sides through flexible water pipes, and the current collector is provided with a protruding outlet.

4. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 3, characterized in that, The switching turntable comprises a cross-shaped water outlet hole and a fan-shaped water outlet hole; in use, the outlet is aligned with one of the cross-shaped water outlet hole or the fan-shaped water outlet hole.

5. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 1, characterized in that, The action part is rotatably provided with a lead screw, the cleaning top plate is in screw connection with the lead screw, and one end of the lead screw is connected with a lifting motor.

6. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 1, characterized in that, Both ends of the adjusting rod are provided with gears, a rack is arranged on the action part, and the rack is in engagement with the gears.

7. A photovoltaic panel cleaning device to avoid abrasive coating according to claim 1, characterized in that, The action part is also provided with a driving wheel, the driving wheel is connected with the output end of a driving motor, and the driving motor is fixed to the side wall of the action part.

Images