Photovoltaic panel cleaning device

Abstract

The utility model provides a photovoltaic panel cleaning device, which belongs to the field of photovoltaic technology, is arranged on a photovoltaic panel, can slide along the surface of the photovoltaic panel and comprises a shell, a first cleaning mechanism and a wiping mechanism, the first cleaning mechanism and the wiping mechanism are arranged on the shell, the first cleaning mechanism is used for spraying water to the photovoltaic panel and then scraping dirt, and the wiping mechanism is used for wiping the photovoltaic panel. The wiping mechanism is used for wiping the surface of the photovoltaic panel after the dirt is scraped off; the wiping mechanism comprises a motor, a downward pressing assembly, an annular rotating assembly and an elastic wiping piece, the motor is arranged on the shell, the downward pressing assembly is connected with the motor and moves up and down in the vertical direction, and the annular rotating assembly is arranged below the downward pressing assembly and can annularly rotate in the horizontal direction; the elastic wiping piece is hinged to the annular rotating assembly and is in a tightened state. And the elastic wiping piece can wipe off relatively compact soil and bird droppings adhering to the surface of the photovoltaic panel, so that manual secondary removal of dirt on the surface of the photovoltaic panel is avoided, and the dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic panel cleaning device. Background Art

[0002] Photovoltaic panels, also known as solar panels or photovoltaic panels, refer to devices that use the photovoltaic effect of semiconductor materials under light conditions to directly convert solar energy into electrical energy. Most of the materials are silicon. Electricity can be generated wherever there is sunlight. Therefore, solar photovoltaic power generation is suitable for a variety of occasions, from large power stations to small portable chargers.

[0003] The surface of photovoltaic panels needs to be cleaned to reduce dust from blocking sunlight. However, there are extremely stringent requirements for cleaning photovoltaic panels. Vibration cleaning is not applicable to photovoltaic panels because they are made of hard materials and vibration will damage them. It is difficult to use natural rainfall or water spraying in Gobi or desert areas. The existing method of cleaning photovoltaic panels is to use a mobile robot to blow away the dust on the surface of the photovoltaic panels.

[0004] However, sand and dust that fall on the surface of some photovoltaic panels may not be washed away by the rain after a small rainfall, and the sand and water may form a mud mixture, which will completely adhere to the surface of the photovoltaic panels after drying. At the same time, there may be bird droppings and other adhesives on the surface of some photovoltaic panels. When the surface of the photovoltaic panels is blown away, the mud and bird droppings on the surface cannot be removed, resulting in a poor cleaning effect on the surface of the photovoltaic panels, and staff are required to clean the photovoltaic panels a second time. Utility Model Content

[0005] Based on this, the utility model provides a photovoltaic panel cleaning device to solve the problem in the prior art that the existing cleaning device cannot remove the mud and bird droppings on the surface, resulting in a poor cleaning effect on the surface of the photovoltaic panel, and the staff is required to clean the photovoltaic panel a second time.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A photovoltaic panel cleaning device, characterized in that it is arranged on the photovoltaic panel and can slide along the surface of the photovoltaic panel, comprising a shell and a first cleaning mechanism and a wiping mechanism arranged on the shell, wherein the first cleaning mechanism is used to scrape off dirt after spraying water on the photovoltaic panel, and the wiping mechanism is used to wipe the surface of the photovoltaic panel after the dirt is scraped off;

[0008] The wiping mechanism includes a motor, a pressing assembly, a circular rotating assembly and an elastic wiping member. The motor is arranged on the shell, the pressing assembly is connected to the motor, the pressing assembly moves up and down in the vertical direction, the circular rotating assembly is arranged below the pressing assembly and can rotate in a circular direction in the horizontal direction, and the elastic wiping member is hinged on the circular rotating assembly and is in a stretched state.

[0009] Preferably, the first cleaning mechanism includes a water spray assembly and a scraper assembly, the water spray assembly includes a nozzle and a water tank, the nozzle is vertically arranged on the shell and is located directly above the surface of the photovoltaic panel, the water tank is arranged on the shell and is connected to the nozzle; the scraper assembly includes a strip scraper, and the strip scraper is vertically arranged on the shell.

[0010] Preferably, the pressing assembly comprises a first pressing member, a second pressing member, a third pressing member and a downward traction shaft, the first pressing member, the second pressing member and the third pressing member are arranged side by side in sequence, the downward traction shaft is connected to the motor, and drives the first pressing member, the second pressing member and the third pressing member to move vertically downward. In the first state, the first pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, and the second pressing member and the third pressing member are located in an initial position and do not move; in the second state, the second pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, the first pressing member returns to the initial position, and the third pressing member is located in the initial position and does not move; in the third state, the third pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, the second pressing member returns to the initial position, and the first pressing member is located in the initial position and does not move.

[0011] Preferably, the downward traction shaft includes a rotating shaft, a first toothless gear, a second toothless gear and a third toothless gear, the rotating shaft is connected to the motor, the first toothless gear, the second toothless gear and the third toothless gear are sleeved on the rotating shaft, the first toothless gear is arranged corresponding to the first downward pressure piece, the second toothless gear is arranged corresponding to the second downward pressure piece, and the third toothless gear is arranged corresponding to the third downward pressure piece.

[0012] Preferably, the first pressing member includes a first spring tube, a first telescopic rod and a first pressing wheel, the first spring tube is vertically downwardly arranged on the shell, one end of the first telescopic rod is sleeved in the first spring tube, the first telescopic rod is provided with a first rack, the first rack can be meshed with the first toothless gear, and the first pressing wheel is arranged at the other end of the first telescopic rod and is located directly above the photovoltaic panel.

[0013] Preferably, a second lower pressing wheel is arranged on the second lower pressing member, a third lower pressing wheel is arranged on the third lower pressing member, the third lower pressing wheel is arranged side by side with the first lower pressing wheel, the second lower pressing wheel is located above the third lower pressing wheel and the first lower pressing wheel, and forms a material transfer channel, and the elastic wiper moves through the material transfer channel.

[0014] Preferably, the annular rotating assembly includes a sprocket, a chain, a first traction rod, a second traction rod and a tensioning wheel, the sprocket is arranged on the shell, the chain is clamped on the sprocket, the first traction rod and the second traction rod are arranged on the chain, the first traction rod is hinged to one end of the elastic wiper, the second traction rod is hinged to the other end of the elastic wiper, the tensioning wheel is arranged on the shell and close to the sprocket, and the tensioning wheel is used to tension the elastic wiper.

[0015] Preferably, the annular rotating assembly further comprises an adjusting sleeve, the adjusting sleeve is arranged on the housing, the tensioning wheel is sleeved in the adjusting sleeve, and the tensioning wheel can be pushed in or pulled out along the adjusting sleeve.

[0016] Preferably, the photovoltaic panel cleaning device further comprises an air-drying component, and the air-drying component is arranged on the shell and located directly above the elastic wiping member.

[0017] Preferably, the air-drying component includes a fan, a blowing port and an exhaust port, the fan is arranged on the shell, the blowing ports are arranged in several groups side by side in sequence, the openings of the blowing ports are arranged vertically downward, and the exhaust port is arranged on the shell.

[0018] Compared with the prior art, the utility model has at least the following advantages:

[0019] The photovoltaic panel cleaning device moves along the photovoltaic panel, and the elastic wiping member will continue to contact the surface of the photovoltaic panel. Furthermore, as the annular rotating component drives the elastic wiping member to rotate, the same position of the elastic wiping member is prevented from continuously contacting the surface of the photovoltaic panel, thereby preventing the elastic wiping member from being damaged by wear. Furthermore, the elastic wiping member will wipe off the relatively compacted soil and bird droppings adhered to the surface of the photovoltaic panel, thereby avoiding manual secondary cleaning of dirt on the surface of the photovoltaic panel and improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first view of the photovoltaic panel cleaning device.

[0021] Figure 2 Axonometric view of photovoltaic panels.

[0022] Figure 3This is the front view of the photovoltaic panel.

[0023] Figure 4 This is the front view of the initial state of the press-down component.

[0024] Figure 5 This is the left view of the press-down assembly.

[0025] Figure 6 It is a top view of the press-down assembly.

[0026] Figure 7 Schematic diagram of the first toothless gear.

[0027] Figure 8 This is a second view of the photovoltaic panel cleaning device.

[0028] Fig. 9 This is the third view of the photovoltaic panel cleaning device.

[0029] Fig.10 This is the fourth view of the photovoltaic panel cleaning device.

[0030] Fig.11 This is the fifth view of the photovoltaic panel cleaning device.

[0031] Fig.12 This is the sixth view of the photovoltaic panel cleaning device.

[0032] In the figure: photovoltaic panel cleaning device 1, first cleaning mechanism 10, water spray assembly 110, nozzle 111, water tank 112, scraper assembly 120, strip scraper 121, wiping mechanism 20, motor 210, pressing assembly 220, first pressing member 221, first spring cylinder 2211, first telescopic rod 2212, first rack 2213, first pressing wheel 2214, second pressing member 222, second pressing wheel 2224, third pressing member 223, third pressing wheel 2234 , downward traction shaft 224, rotating shaft 2241, first toothless gear 2242, second toothless gear 2243, third toothless gear 2244, annular rotating component 230, sprocket 231, chain 232, first traction rod 233, second traction rod 234, tensioning wheel 235, adjusting sleeve 236, elastic wiper 240, air drying component 250, fan 251, air outlet 252, exhaust outlet 253, shell 30, photovoltaic panel 2, roller 310, guide rail 320. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0034] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] Please see Figures 1 to 3A photovoltaic panel cleaning device 1 is arranged on a photovoltaic panel 2 and can slide along the surface of the photovoltaic panel 2, comprising a housing 30 and a first cleaning mechanism 10 and a wiping mechanism 20 arranged on the housing 30, wherein the first cleaning mechanism 10 is used to spray water on the photovoltaic panel 2 to scrape off dirt, and the wiping mechanism 20 is used to wipe the surface of the photovoltaic panel 2 after the dirt is scraped off; the wiping mechanism 20 comprises a motor 210, a pressing component 220, a circular rotating component 230, an elastic wiping member 240 and an air drying component The motor 210 is arranged on the shell 30, the pressing component 220 is connected to the motor 210, the pressing component 220 moves up and down in the vertical direction, the annular rotating component 230 is arranged below the pressing component 220, and can rotate in a horizontal direction, the elastic wiping component 240 is hingedly arranged on the annular rotating component 230, and is in a stretched state, and the air-drying component 250 is arranged on the shell 30, and is located directly above the elastic wiping component 240. The photovoltaic panel 2 is generally tilted at a fixed angle. Since the surface of the photovoltaic panel 2 is mostly deposited with dust, the first cleaning mechanism 10 performs the first cleaning on the surface of the photovoltaic panel 2 by spraying water to rinse the dust on the surface of the photovoltaic panel 2. As the photovoltaic panel cleaning device 1 is powered on, it moves along the photovoltaic panel 2. The first cleaning mechanism 10 will scrape off the mud and water mixture on the surface and flow it to the outside of the photovoltaic panel 2 along the tilted photovoltaic panel 2. Subsequently, the wiping component wipes the photovoltaic panel 2 from which the dirt has been scraped off for secondary cleaning. First, the motor 210 is started. After the motor 210 rotates, it pushes the pressing component 220 to move vertically downward. At the same time, the annular rotating component 230 rotates to drive the elastic wiping member 240 to move. At this time, the pressing component 220 will press the elastic wiping member 240 downward during the movement. As the elastic wiping piece 240 has a certain elasticity, it will not break or be damaged. As the photovoltaic panel cleaning device 1 moves along the photovoltaic panel 2, the elastic wiping piece 240 will continue to be in contact with the surface of the photovoltaic panel 2. Furthermore, as the annular rotating component 230 drives the elastic wiping piece 240 to rotate, the same position of the elastic wiping piece 240 is prevented from continuously contacting the surface of the photovoltaic panel 2 to prevent damage to the elastic wiping piece 240. Furthermore, since the relatively compacted soil and bird droppings adhesives become soft after being blistered, and then the elastic wiping piece 240 and the photovoltaic panel 2 are subjected to force friction, the elastic wiping piece 240 will wipe off the relatively compacted soil and bird droppings adhesives on the surface of the photovoltaic panel 2, thereby avoiding manual secondary cleaning of dirt on the surface of the photovoltaic panel 2 and improving the dust removal efficiency.

[0036] In one possible embodiment, see Figure 1The first cleaning mechanism 10 includes a water spray assembly 110 and a scraper assembly 120. The water spray assembly 110 includes a nozzle 111 and a water tank 112. The nozzle 111 is vertically arranged on the housing 30 and is located directly above the surface of the photovoltaic panel 2. The water tank 112 is arranged on the housing 30 and is connected to the nozzle 111. It is necessary to add water to the water tank 112 regularly. The water in the water tank 112 can clean the photovoltaic panel 23-4 times. The water tank 112 is provided with There is a small water pump connected to the nozzle 111 for supplying water to the nozzle 111. The nozzle 111 is a high-pressure nozzle 111 with a certain water pressure, which can spray away most of the floating and sinking on the photovoltaic panel 2. The scraper assembly 120 includes a strip scraper 121, which is vertically arranged on the shell 30. The strip scraper 121 and the photovoltaic panel 2 are in contact with each other. The strip scraper 121 is a kind of rubber sheet, which is convenient for scraping off the mud and water mixture on the photovoltaic panel 2.

[0037] During operation, when the photovoltaic panel cleaning device 1 moves, the water pump is energized to draw water from the water tank 112, and the nozzle 111 sprays high-pressure water to clean the floating and sinking on the surface of the photovoltaic panel 2. Then, the strip scraper 121 scrapes off the mud and water mixture on the photovoltaic panel 2.

[0038] In a preferred embodiment, see Figure 1 The scraper assembly 120 is also provided with a lower adjusting member 122, and the lower adjusting member 122 is connected to the strip scraper 121 and is used to control the strip scraper 121 to move up and down; when the photovoltaic panel cleaning device 1 is installed on the shell 30, due to the difference of the photovoltaic panel 2, the strip scraper 121 cannot fit together with the surface of the photovoltaic panel 2. By adjusting the lower adjusting member 122, the strip scraper 121 is controlled to move downward, so that the strip scraper 121 and the surface of the photovoltaic panel 2 are fit together, and the dust on the surface of the photovoltaic panel 2 is scraped more cleanly. When the strip scraper 121 is damaged, the strip scraper 121 is removed from the lower adjusting member 122, and replacement is more convenient.

[0039] In one possible embodiment, see Figures 4 to 6The pressing assembly 220 includes a first pressing member 221, a second pressing member 222, a third pressing member 223 and a downward traction shaft 224. The first pressing member 221, the second pressing member 222 and the third pressing member 223 are three pressing members with the same or similar structures. The first pressing member 221, the second pressing member 222 and the third pressing member 223 are arranged side by side in sequence. The downward traction shaft 224 is connected to the motor 210 and drives the first pressing member 221, the second pressing member 222 and the third pressing member 223 to move vertically downward. In the first state, the first pressing member 221 moves vertically downward to push the elastic wiping member 240 downward and move with the The surface of the photovoltaic panel 2 is in contact with the second pressing member 222 and the third pressing member 223 are located in the initial position and do not move; in the second state, the second pressing member 222 moves vertically downward, pushes the elastic wiping member 240 downward, and is in contact with the surface of the photovoltaic panel 2, the first pressing member 221 returns to the initial position, and the third pressing member 223 is located in the initial position and does not move; in the third state, the third pressing member 223 moves vertically downward, pushes the elastic wiping member 240 downward, and is in contact with the surface of the photovoltaic panel 2, the second pressing member 222 returns to the initial position, and the first pressing member 221 is located in the initial position and does not move.

[0040] In one possible embodiment, see Figure 1 and Figure 7 The downward traction shaft 224 includes a rotating shaft 2241, a first toothless gear 2242, a second toothless gear 2243 and a third toothless gear 2244. The rotating shaft 2241 is connected to the motor 210. The first toothless gear 2242, the second toothless gear 2243 and the third toothless gear 2244 are sleeved on the rotating shaft 2241. The first toothless gear 2242 is arranged corresponding to the first downward pressure piece 221, the second toothless gear 2243 is arranged corresponding to the second downward pressure piece 222, and the third toothless gear 2244 is arranged corresponding to the third downward pressure piece 223. The first toothless gear 2242, the second toothless gear 2243 and the third toothless gear 2244 have the same structure, but when the first toothless gear 2242, the second toothless gear 2243 and the third toothless gear 2244 are sleeved on the rotating shaft 2241, the toothless positions of the three toothless gears are not in the same plane, that is, the three toothless gears are staggered with each other in sequence, which facilitates the first pressing member 221, the second pressing member 222 and the third pressing member 223 to be pressed down one by one.

[0041] In one possible embodiment, see Figure 4The first pressing member 221 includes a first spring tube 2211, a first telescopic rod 2212 and a first pressing wheel 2214. The first spring tube 2211 is vertically downwardly arranged on the shell 30. One end of the first telescopic rod 2212 is sleeved in the first spring tube 2211. The first telescopic rod 2212 is provided with a first rack 2213. The first rack 2213 can be meshed with the first toothless gear 2242. The first pressing wheel 2214 is arranged at the other end of the first telescopic rod 2212 and is located directly above the photovoltaic panel 2. A compression spring is arranged in the first spring tube 2211, and the compression spring is connected to the first telescopic rod 2212. When the first toothless gear 2242 rotates and the first toothless gear 2242 meshes with the first rack 2213, the first telescopic rod 2212 is pushed to move downward in the vertical direction, so that the first lower pressure wheel 2214 moves downward to push the elastic wiping member 240 and the photovoltaic panel 2 to fit each other. When the first toothless gear 2242 continues to rotate, the toothless portion of the first toothless gear 2242 corresponds to the first telescopic rod 2212, so that when the first toothless gear 2242 is not meshed with the first rack 2213, the first telescopic rod 2212 is not subjected to force, and the telescopic spring is reset, driving the first telescopic rod 2212 to move upward in the vertical direction and return to its initial position.

[0042] In a preferred embodiment, the second pressing member 222 includes a second spring barrel, a second telescopic rod and a second pressing wheel 2224, the second spring barrel is vertically downwardly arranged on the housing 30, one end of the second telescopic rod is sleeved in the second spring barrel, a second rack is arranged on the second telescopic rod, the second rack can be meshed with the second toothless gear 2243, and the second pressing wheel 2224 is arranged at the other end of the second telescopic rod and is located directly above the photovoltaic panel 2. The movement process and functional relationship of the second pressing member 222 are the same or similar to those of the first pressing member 221.

[0043] In a preferred embodiment, the third pressing member 223 includes a third spring barrel, a third telescopic rod and a third pressing wheel 2234, wherein the third spring barrel is vertically downwardly arranged on the housing 30, one end of the third telescopic rod is sleeved in the third spring barrel, a third rack is arranged on the second telescopic rod, and the third rack can be meshed with the third toothless gear 2244, and the third pressing wheel 2234 is arranged at the other end of the third telescopic rod and is located directly above the photovoltaic panel 2. The movement process and functional relationship of the third pressing member 223 are the same or similar to those of the first pressing member 221.

[0044] In a preferred embodiment, the third lower pressing wheel 2234 is arranged side by side with the first lower pressing wheel 2214, and the second lower pressing wheel 2224 is located above the third lower pressing wheel 2234 and the first lower pressing wheel 2214 to form a material transfer channel, and the elastic wiper 240 moves through the material transfer channel.

[0045] In one possible embodiment, see Figure 1 The annular rotating assembly 230 includes a sprocket 231, a chain 232, a first traction rod 233, a second traction rod 234 and a tensioning wheel 235. The sprocket 231 is arranged on the shell 30, and the chain 232 is clamped on the sprocket 231. The first traction rod 233 and the second traction rod 234 are arranged on the chain 232. The first traction rod 233 is hinged to one end of the elastic wiper 240, and the second traction rod 234 is hinged to the other end of the elastic wiper 240. The tensioning wheel 235 is arranged on the shell 30 and is arranged close to the sprocket 231. The tensioning wheel 235 is used to tension the elastic wiper 240. The sprockets 231 are provided with two, and the sprockets 231 are driven to rotate by the motor 210. The motor 210 is a separate motor 210 or a motor 210 shared with the pressing assembly 220. When the sprocket 231 rotates, the chain 232 and the first traction rod 233 and the second traction rod 234 on the chain 232 are driven to move. The tensioning wheel 235 is provided with two and is respectively located between a pair of the sprockets 231.

[0046] For details, see Figure 6 In order to prevent the annular rotating assembly 230 and the pressing assembly 220 from interfering with or colliding with each other, the sprocket 231 and the chain 232 are arranged on one side of the housing 30, and the first telescopic rod 2212, the second traction rod 234 and the third traction rod are arranged on the other side of the housing 30. The first traction rod 233 and the second traction rod 234 can pass through the material passage formed by the first lower pressing wheel 2214, the second lower pressing wheel 2224 and the third lower pressing wheel 2234 (see Figure 4 ).

[0047] In a preferred embodiment, the elastic wiper 240 is a belt-shaped elastic cloth, the length of which is set according to the distance between the first traction rod 233 and the second traction rod 234. The elastic wiper 240 can be replaced, and when damaged, it can be removed from the first traction rod 233 and the second traction rod 234 for replacement.

[0048] In a possible embodiment, the annular rotating assembly 230 further includes an adjusting sleeve 236, the adjusting sleeve 236 is disposed on the housing 30, the tensioning wheel 235 is sleeved in the adjusting sleeve 236, and the tensioning wheel 235 can be pushed in or pulled out along the adjusting sleeve 236. When the elastic wiper 240 is longer, the distance between the pair of tensioning wheels 235 is longer, and when the elastic wiper 240 is shorter, the distance between the pair of tensioning wheels 235 is closer, and the distance between the tensioning wheels 235 is adjusted by the adjusting sleeve 236, so that the elastic wiper 240 is in a taut state on the tensioning wheel 235. When the elastic wiping member 240 is in a relaxed state, after the pressing component 220 pushes the elastic wiping member 240 downward, due to the movement of the photovoltaic panel cleaning device 1 and the simultaneous movement of the annular rotating component 230, the elastic wiping member 240 in a relaxed state will cause accumulation on the surface of the photovoltaic panel 2, and wrinkles will appear, resulting in failure to wipe the surface of the photovoltaic panel 2 clean. When the elastic wiping member 240 is elastic, after the elastic wiping member 240 is extended and fits with the photovoltaic panel 2, it will not cause accumulation on the surface of the photovoltaic panel 2, and can wipe all water stains on the surface of the photovoltaic panel 2 clean.

[0049] In a possible embodiment, the photovoltaic panel cleaning device 1 further includes an air drying component 250, which is arranged on the housing 30 and is located directly above the elastic wiper 240. The air drying component 250 includes a fan 251, a blowing port 252 and an exhaust port 253. The fan 251 is arranged on the housing 30, and the blowing ports 252 are arranged in a plurality of groups in sequence and side by side. The opening of the blowing port 252 is arranged vertically downward, and the exhaust port 253 is arranged on the housing 30. The fan 251 inhales air, compresses it and blows it, and the blowing ports 252 are arranged in a plurality of groups in sequence and side by side. The opening of the blowing port 252 is arranged vertically downward, and is arranged opposite to the elastic wiper 240 and the surface of the photovoltaic panel 2, so that the elastic wiper 240 and the surface of the photovoltaic panel 2 can be directly air-dried, and the exhaust port 253 is used to remove moisture from the surface of the elastic wiper 240 and the photovoltaic panel 2. After blowing, the moisture remaining on the surface of the photovoltaic panel 2 will be dried, so that the surface of the photovoltaic panel 2 becomes dry, and dust is prevented from sticking to the photovoltaic panel 2.

[0050] In a preferred embodiment, the blowing outlet 252 is set to any one of groups 1, 2, 3, and 4.

[0051] In a possible embodiment, a roller 310 is provided on the housing 30, a guide rail 320 is provided on the photovoltaic panel 2, and the roller 310 is clamped on the guide rail 320. The roller 310 can be set to be either electrically or manually movable, wherein the electrically movable one uses the motor 210 to drive the roller 310 to rotate, and the manually movable one uses the staff to push the roller 310 to rotate, and the roller 310 is used to facilitate the movement of the photovoltaic panel cleaning device 1 on the photovoltaic panel 2.

[0052] Working process: First movement Working process: See Figure 1 After the strip scraper 121 scrapes the mud-water mixture, some water stains will remain on the surface of the photovoltaic panel 2, so the elastic wiping cloth will further wipe the surface of the photovoltaic panel 2 dry. When the first gear 2242 is in the first state, the motor 210 rotates to drive the rotating shaft 2241 to rotate, and the rotating shaft 2241 drives the first toothless gear 2242, the second toothless gear 2243 and the third toothless gear 2244 to rotate. At this time, the first toothless gear 2242 is meshed with the first rack 2213, and the first toothless gear 2242 rotates to drive the first rack 2213 to move downward, and drives the first telescopic rod 2212 to move downward in the vertical direction. The compression spring in the first spring tube 2211 is in an extended stressed state, and the first lower pressure wheel 2214 presses down the elastic wiping member 240 to fit the surface of the photovoltaic panel 2, thereby wiping the water stains on the surface of the photovoltaic panel 2; then, as the sprocket 231 drives the chain 232 to rotate clockwise, the first traction rod 233 and the second traction rod 234 will rotate with the elastic wiping cloth, so that different parts of the elastic wiping cloth can wipe the photovoltaic panel 2 dry.

[0053] The second movement working process: Figures 1 to 8 arrive Fig. 9When the first traction rod 233 pulls the elastic wiping member 240 into the material transfer channel and is located between the second lower pressure wheel 2224 and the third lower pressure wheel 2234, at this time, the meshing of the first toothless gear 2242 and the first rack 2213 ends and is in an empty tooth state, and the first telescopic rod 2212 is not subjected to force, and the first spring tube 2211 drives the first telescopic rod 2212 and the first lower pressure wheel 2214 to move upward in the vertical direction, and at this time, the second toothless gear 2243 and the second rack are meshed with each other, driving the second lower pressure wheel 2224 to move downward in the vertical direction, and the compression spring in the second spring tube is in an extended stressed state, and the second lower pressure wheel 2224 presses the elastic wiping member 240 downward to fit the surface of the photovoltaic panel 2. The surface of the elastic wiping member 240 pressed down by the pressure wheel 2214 and in contact with the surface of the photovoltaic panel 2 is surface A, and the surface of the elastic wiping member 240 pressed down by the second lower pressure wheel 2224 and in contact with the surface of the photovoltaic panel 2 is surface B. Surface B is exactly opposite to surface A. Therefore, the front and back sides of the elastic wiping member 240 can be switched, avoiding the use of one side of the elastic wiping member 240 to wipe the photovoltaic panel 2. The front and back sides are used alternately to extend the service life of the elastic wiping member 240. At the same time, the photovoltaic panel 2 can be wiped more cleanly. As the first traction rod 233 moves along the chain 232, the elastic wiping member 240 and the tensioning wheel 235 contact each other, and the elastic wiping member 240 is turned, and the elastic wiping member 240 is kept in a taut state to facilitate the wiping of the photovoltaic panel 2.

[0054] The third movement working process: Figure 9 to Figure 10 arrive Fig.11During the movement, when the B side (rear side) of the elastic wiper 240 is about to be used up, the first traction rod 233 rotates half a circle along the chain 232 and is located between the second lower pressure wheel 2224 and the third lower pressure wheel 2234. The second toothless gear 2243 ends the meshing with the second rack and is in an empty tooth state. The second telescopic rod is not subjected to force. The second spring cylinder drives the second telescopic rod and the second lower pressure wheel 2224 to move upward in the vertical direction. At this time, the third toothless gear 2244 is meshed with the third rack, driving the third lower pressure wheel 2234 to move upward in the vertical direction. When the second lower pressure wheel 2224 moves downward, the compression spring in the third spring cylinder is in an extended stressed state, and the third lower pressure wheel 2234 presses down the elastic wiping member 240 to fit the surface of the photovoltaic panel 2. At this time, the surface of the elastic wiping member 240 pressed down by the third lower pressure wheel 2234 and in contact with the surface of the photovoltaic panel 2 is converted to surface A, which is exactly opposite to surface B, and the front and back sides of the elastic wiping member 240 are switched again. Since the second lower pressure wheel 2224 rises, the second lower pressure wheel 2224 will not block the movement of the second traction rod 234, and the second traction rod 234 will pass under the second lower pressure wheel 2224. Figure 11 to Figure 12 During the movement, as the first traction rod 233 moves to below the first downward pressure rod and continues to move forward, the first toothless gear 2242 and the first rack 2213 will engage with each other again, driving the first downward pressure rod to move downward, the third toothless gear 2244 ends its engagement with the third rack and is in an empty tooth state, and the third downward pressure wheel 2234 moves upward in the vertical direction and returns to its initial position.

[0055] During the whole movement process, the fan 251 keeps working, and the air outlet 252 blows air to dry the moisture on the elastic wiping member 240 , and at the same time, the moisture on the surface of the photovoltaic panel 2 is dried, and the moisture is discharged through the exhaust port 253 .

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic panel cleaning device, characterized in that: It is arranged on the photovoltaic panel and can slide along the surface of the photovoltaic panel, and comprises a shell and a first cleaning mechanism and a wiping mechanism arranged on the shell, wherein the first cleaning mechanism is used to scrape off dirt after spraying water on the photovoltaic panel, and the wiping mechanism is used to wipe the surface of the photovoltaic panel after the dirt is scraped off; The wiping mechanism includes a motor, a pressing assembly, a circular rotating assembly and an elastic wiping member. The motor is arranged on the shell, the pressing assembly is connected to the motor, the pressing assembly moves up and down in the vertical direction, the circular rotating assembly is arranged below the pressing assembly and can rotate in a circular direction in the horizontal direction, and the elastic wiping member is hinged on the circular rotating assembly and is in a stretched state.

2. A photovoltaic panel cleaning device as claimed in claim 1, characterized in that: The first cleaning mechanism includes a water spray assembly and a scraper assembly. The water spray assembly includes a nozzle and a water tank. The nozzle is vertically arranged on the shell and is located directly above the surface of the photovoltaic panel. The water tank is arranged on the shell and is connected to the nozzle. The scraper assembly includes a strip scraper, and the strip scraper is vertically arranged on the shell.

3. A photovoltaic panel cleaning device as claimed in claim 1, characterized in that: The pressing assembly comprises a first pressing member, a second pressing member, a third pressing member and a downward traction shaft, wherein the first pressing member, the second pressing member and the third pressing member are arranged side by side in sequence, and the downward traction shaft is connected to the motor and drives the first pressing member, the second pressing member and the third pressing member to move vertically downward. In a first state, the first pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, and the second pressing member and the third pressing member are located in an initial position and do not move; in a second state, the second pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, the first pressing member returns to the initial position, and the third pressing member is located in the initial position and does not move; in the third state, the third pressing member moves vertically downward to push the elastic wiping member to move downward and fit with the surface of the photovoltaic panel, the second pressing member returns to the initial position, and the first pressing member is located in the initial position and does not move.

4. A photovoltaic panel cleaning device as claimed in claim 3, characterized in that: The downward traction shaft includes a rotating shaft, a first toothless gear, a second toothless gear and a third toothless gear, the rotating shaft is connected to the motor, the first toothless gear, the second toothless gear and the third toothless gear are sleeved on the rotating shaft, the first toothless gear is arranged corresponding to the first downward pressure piece, the second toothless gear is arranged corresponding to the second downward pressure piece, and the third toothless gear is arranged corresponding to the third downward pressure piece.

5. A photovoltaic panel cleaning device as claimed in claim 4, characterized in that: The first pressing member includes a first spring tube, a first telescopic rod and a first pressing wheel. The first spring tube is vertically downwardly arranged on the shell. One end of the first telescopic rod is sleeved in the first spring tube. The first telescopic rod is provided with a first rack. The first rack can be meshed with the first toothless gear. The first pressing wheel is arranged at the other end of the first telescopic rod and is located directly above the photovoltaic panel.

6. A photovoltaic panel cleaning device as claimed in claim 5, characterized in that: A second lower pressing wheel is arranged on the second lower pressing member, a third lower pressing wheel is arranged on the third lower pressing member, the third lower pressing wheel is arranged side by side with the first lower pressing wheel, the second lower pressing wheel is located above the third lower pressing wheel and the first lower pressing wheel, and forms a material transfer channel, and the elastic wiper moves through the material transfer channel.

7. A photovoltaic panel cleaning device as claimed in claim 1, characterized in that: The annular rotating assembly includes a sprocket, a chain, a first traction rod, a second traction rod and a tensioning wheel. The sprocket is arranged on the shell, the chain is clamped on the sprocket, the first traction rod and the second traction rod are arranged on the chain, the first traction rod is hinged to one end of the elastic wiper, the second traction rod is hinged to the other end of the elastic wiper, and the tensioning wheel is arranged on the shell and close to the sprocket. The tensioning wheel is used to tension the elastic wiper.

8. A photovoltaic panel cleaning device as claimed in claim 7, characterized in that: The annular rotating assembly further comprises an adjusting sleeve, wherein the adjusting sleeve is arranged on the housing, the tensioning wheel is sleeved in the adjusting sleeve, and the tensioning wheel can be pushed in or pulled out along the adjusting sleeve.

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