Photovoltaic panel cleaning device and method

Abstract

The application discloses a kind of photovoltaic panel cleaning device and method, belong to photovoltaic panel cleaning technical field, including main body, the main body includes shell, the shell both sides are equipped with limit support, the limit support is equipped with for driving wheel for driving the shell movement;Pretreatment mechanism, the pretreatment mechanism includes being equipped with a plurality of dust extraction pipe in the shell front end, detection assembly is equipped with in the dust extraction pipe front end and is equipped with opening degree adjusting assembly on the dust extraction pipe, the opening degree adjusting assembly is used to dynamically adjust the suction power of dust extraction pipe according to the detection result of detection assembly;Cleaning mechanism, the cleaning mechanism includes being equipped with cleaning assembly in the shell, and position adjusting assembly is equipped between the cleaning assembly and shell.The application can be cleaned by pretreatment mechanism before cleaning assembly cleaning, avoid in subsequent cleaning when cleaning assembly is moved due to driving hard particle impurities and causes photovoltaic panel surface to be scratched.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic panel cleaning, in particular to a photovoltaic panel cleaning device and method. BACKGROUND

[0002] A photovoltaic array refers to a system composed of multiple photovoltaic components, such as solar panels, combined in a certain layout to convert solar energy into electrical energy. Photovoltaic panels, also known as solar panels, are key equipment for converting solar energy into electrical energy through the photoelectric effect. After a long period of operation of the photovoltaic array, dust may accumulate on the photovoltaic panels, which can block sunlight and reduce the light intensity of the photovoltaic panels, resulting in a decrease in power generation efficiency. Therefore, a cleaning device is needed to clean the photovoltaic panels to ensure power generation efficiency.

[0003] In the prior art, for example, a photovoltaic panel cleaning device is disclosed in Chinese Patent No. CN221184107U, which includes a moving assembly and a moving seat. The moving assembly and the moving seat are arranged on the outside of the panel support. The moving seat moves along the inclined direction of the panel support under the drive of the moving assembly. The moving seat surface is provided with an elastic contraction member. The contraction end of the elastic contraction member is vertically upward and connected with a bearing plate. The bearing plate extends above the photovoltaic panel, and the bottom surface of the bearing plate is provided with a wiping cotton. A cleaning assembly is arranged on one side of the low end of the photovoltaic panel to receive and clean the wiping cotton. This scheme moves the moving seat through the moving assembly, uses the contraction force of the elastic contraction member to make the wiping cotton fully contact with the photovoltaic panel, wipes and cleans the photovoltaic panel through the wiping cotton, ensures the cleanliness of the surface of the photovoltaic panel, helps to improve the power generation efficiency, and prolongs the service life of the photovoltaic panel. The cleaning assembly can clean the wiping cotton to ensure the wiping and cleaning effect of the wiping cotton.

[0004] However, most of the existing cleaning devices directly clean the upper surface of the photovoltaic panel and cannot pretreat hard particle impurities on the photovoltaic panel. During the cleaning process, the hard particle impurities may move quickly, which may scratch the surface of the photovoltaic panel and result in unsatisfactory cleaning effect. SUMMARY

[0005] In view of the problems existing in the prior art, the present application provides a photovoltaic panel cleaning device and method to solve the problems in the background art. To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A photovoltaic panel cleaning device, comprising: a main body comprising a shell, both sides of the shell are provided with limiting frames, and the limiting frames are provided with driving wheels for driving the shell to move; a pretreatment mechanism comprising a plurality of dust suction pipes arranged at the front end of the shell, a detection assembly arranged at the front end of the dust suction pipe, and an opening adjusting assembly arranged on the dust suction pipe, the opening adjusting assembly is used for dynamically adjusting the suction force of the dust suction pipe according to the detection result of the detection assembly; a cleaning mechanism comprising a cleaning assembly arranged in the shell, and a position adjusting assembly arranged between the cleaning assembly and the shell.

[0007] Further, the opening adjusting assembly comprises a valve seat arranged on the dust suction pipe, a valve block arranged in the valve seat, a gear one arranged on both sides of the dust suction pipe, a telescopic rod one arranged between the gear one and the valve block, a gear two arranged on both sides of the dust suction pipe, and the gear one and the gear two are engaged; the detection assembly comprises a roller one, and both sides of the roller one are connected through a support and two gear twos.

[0008] Further, the cleaning assembly comprises a fixing frame arranged in the shell and two cleaning wheels, the fixing frame is provided with a motor, and the output end of the motor and the input end of the cleaning wheel are connected through a transmission belt one.

[0009] Further, the position adjusting assembly comprises an electric push rod arranged at the top of the shell, a movable seat arranged at the output end of the electric push rod, a swing arm one arranged between the cleaning wheel and the shell, and a swing arm two arranged between the swing arm one and the movable seat.

[0010] Further, a dust suction seat is arranged between the movable seat and the fixing frame, a dust suction part is arranged at the top of the shell, and the dust suction part, the dust suction seat and the dust suction pipe are communicated through a hose.

[0011] Further, it further comprises a finishing mechanism, the finishing mechanism comprises a storage box arranged at the rear end of the shell, a cleaning cloth arranged in the storage box, and a renewal assembly arranged between the cleaning cloth and the shell.

[0012] Further, the renewal assembly comprises a telescopic rod two arranged at the rear end of the shell, a rack arranged in the telescopic rod two, a sliding block arranged on both sides of the rack, an inclined sliding groove arranged on both sides of the telescopic rod two, a roller two arranged at the bottom of the telescopic rod two, a gear three arranged in the shell, a roller shaft one and a roller shaft two arranged in the storage box, the gear three and the roller shaft one are connected through a transmission belt two, and the rack and the gear three are engaged.

[0013] Further, the roller shaft two is located at the bottom of the roller shaft one, and the cleaning cloth is connected with the roller shaft one and the roller shaft two through tension respectively.

[0014] Further, the rear end of the storage box is provided with a dismounting plate.

[0015] A photovoltaic panel cleaning method using the photovoltaic panel cleaning device, comprising the following steps:

[0016] Step one: place the shell on the photovoltaic panel, use the limiting frame to clamp on the frame at both ends of the photovoltaic panel, so that the driving wheel is in contact with the photovoltaic panel frame, start the driving wheel to drive the shell to move uniformly on the photovoltaic panel;

[0017] Step two: use the detection assembly to detect the hard particles on the photovoltaic panel, and after detection, adjust the suction force of the dust suction pipe according to the size of the hard particles, and suck and clean the hard particles;

[0018] Step three: start the position adjusting assembly during the movement of the shell, so that the cleaning assembly is in contact with the upper surface of the photovoltaic panel, and start the cleaning assembly to sweep the dust on the surface of the photovoltaic panel;

[0019] Step four: use the cleaning cloth to wipe and clean the surface of the photovoltaic panel after being swept, and use the updating assembly to replace the cleaning cloth in contact with the photovoltaic panel after completing the cleaning work of one photovoltaic panel, so as to clean the next photovoltaic panel in the photovoltaic array.

[0020] The beneficial effects of the present application are:

[0021] 1. The dust suction pipe can suck and clean hard particle impurities before the cleaning wheel cleans, so as to avoid moving hard particle impurities during subsequent cleaning of the cleaning wheel, which can cause scratches on the surface of the photovoltaic panel. The opening of the dust suction pipe can be adjusted according to the size of the hard particle impurities through the bracket and the valve block. Multiple dust suction pipes are provided, and the suction force of each dust suction pipe is dynamically adjusted to improve the cleaning effect and reduce the working energy consumption.

[0022] 2. The updating assembly can separate the cleaning cloth stained with dirt and dust from the photovoltaic panel after completing the cleaning work of one photovoltaic panel in the photovoltaic array, and make the clean cleaning cloth contact with the photovoltaic panel, so as to ensure the cleaning effect of subsequent wiping and cleaning, and further ensure that the cleaning work of each photovoltaic panel in the photovoltaic array achieves the expected effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a schematic view of the overall structure of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0024] Fig. 2 is a rear view of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0025] Fig. 3is a schematic view of an internal structure of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0026] Fig. 4 is a schematic view of a cleaning mechanism of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0027] Fig. 5 is a schematic view of a pretreatment mechanism of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0028] Fig. 6 is a schematic view of a finishing mechanism of a photovoltaic panel cleaning device provided in an embodiment of the present application;

[0029] Fig. 7 is a step block diagram of a photovoltaic panel cleaning method provided in an embodiment of the present application.

[0030] In the drawings: 1, main body; 101, shell; 102, limiting frame; 103, drive wheel; 2, cleaning mechanism; 201, dust suction member; 202, hose; 203, dust suction seat; 204, cleaning assembly; 2041, cleaning wheel; 2042, motor; 2043, fixing frame; 2044, transmission belt one; 2045, swing arm one; 2046, swing arm two; 2047, movable seat; 2048, electric push rod; 205, position adjusting assembly; 3, pretreatment mechanism; 301, telescopic rod one; 302, gear one; 303, dust suction pipe; 304, valve seat; 305, valve block; 306, gear two; 307, support; 308, roller one; 4, finishing mechanism; 401, storage box; 4011, disassembly plate; 4012, threaded block; 4013, nut; 402, cleaning cloth; 403, updating assembly; 4031, telescopic rod two; 4032, inclined sliding groove; 4033, sliding block; 4034, rack; 4035, roller two; 4036, roller one; 4037, roller two; 4038, gear three; 4039, transmission belt two. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the drawings and specific embodiments, but the present application is not limited to the following embodiments.

[0032] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

[0033] Embodiment one:

[0034] See the attached Figs. 1-7 The application discloses a photovoltaic panel cleaning device, which comprises a main body 1, the main body 1 comprises a shell 101, limit frames 102 are arranged on the two sides of the shell 101, driving wheels 103 for driving the shell 101 to move are arranged in the limit frames 102; a pretreatment mechanism 3, the pretreatment mechanism 3 comprises a plurality of dust suction pipes 303 arranged at the front end of the shell 101, a detection assembly arranged at the front end of the dust suction pipe 303 and an opening adjusting assembly arranged on the dust suction pipe 303, the opening adjusting assembly is used for dynamically adjusting the suction force of the dust suction pipe 303 according to the detection result of the detection assembly; a cleaning mechanism 2, the cleaning mechanism 2 comprises a cleaning assembly 204 arranged in the shell 101 and a position adjusting assembly 205 arranged between the cleaning assembly 204 and the shell 101.

[0035] Specifically, the opening adjusting assembly comprises a valve seat 304 arranged on the dust suction pipe 303, a valve block 305 arranged in the valve seat 304, gear wheels one 302 arranged on the two sides of the dust suction pipe 303, telescopic rods one 301 arranged between the gear wheels one 302 and the valve block 305, gear wheels two 306 arranged on the two sides of the dust suction pipe 303, the gear wheels one 302 and the gear wheels two 306 are engaged; the detection assembly comprises a roller one 308, the two sides of the roller one 308 are connected through a support 307 and two gear wheels two 306 respectively.

[0036] Specifically, the cleaning assembly 204 comprises a fixing frame 2043 and two cleaning wheels 2041 arranged in the shell 101, a motor 2042 is arranged on the fixing frame 2043, and the output end of the motor 2042 and the input end of the cleaning wheel 2041 are connected through a transmission belt one 2044.

[0037] Specifically, the position adjusting assembly 205 includes an electric push rod 2048 arranged at the top of the shell 101, a movable seat 2047 arranged at the output end of the electric push rod 2048, a swing arm I 2045 arranged between the cleaning wheel 2041 and the shell 101, and a swing arm II 2046 arranged between the swing arm I 2045 and the movable seat 2047.

[0038] Specifically, a dust suction seat 203 is arranged between the movable seat 2047 and the fixed frame 2043, and a dust suction member 201 is arranged at the top of the shell 101. The dust suction member 201 is in communication with the dust suction seat 203 and the dust suction pipe 303 through the hose 202.

[0039] As can be seen from the above structure, during work, the device is clamped on the photovoltaic panel through the limiting frame 102, and the device can automatically walk on the photovoltaic panel by starting the driving wheel 103. During the walking process, the roller I 308 will be in contact with the photovoltaic panel to be cleaned in advance. When there is a hard particle impurity on the photovoltaic panel, the roller I 308 will be lifted upward after contacting the hard particle impurity, and then swing upward around the gear II 306 as the axis through the support 307, and the swing amplitude corresponds to the size of the hard particle impurity. When the roller I 308 swings upward, the gear II 306 will rotate synchronously, and then drive the gear I 302 to rotate in the opposite direction through the meshing with the gear II 306. The rotation of the gear I 302 will drive the valve block 305 to move outward from the valve seat 304 through the telescopic rod I 301, so as to increase the opening degree of the valve seat 304, reduce the resistance, increase the suction of the dust suction pipe 303, and avoid the blockage caused by the particle impurity with large size. The pre-removal of the hard particle impurity can avoid scratching the photovoltaic panel during subsequent cleaning. After the roller I 308 passes over the impurity, it will fall back to the original position due to its own weight, and then the opening degree of the valve seat 304 will be restored. The suction generated by the dust suction member 201 is distributed in other dust suction pipes 303 that need to remove the particle impurities with large size, so as to improve the work efficiency and reduce the work energy consumption.

[0040] In an embodiment of the present application, the roller I 308 can adopt a rubber tire, the support 307 can adopt a hollow plastic material, which is relatively light in texture, and the outer surface of the roller I 308 can be provided with anti-skid lines. When the hard particle impurity is not adhered to the photovoltaic panel, the rolling of the roller I 308 will make the anti-skid lines on it grab the outer surface of the hard particle impurity, so that it can bear the axial downward pressure of the roller I 308 while bearing the thrust of the roller I 308, so as to press the hard particle impurity downward on the photovoltaic panel. Combined with the light texture, the hard particle impurity can be easily passed over, and synchronous movement is avoided. At the same time, the distance between the dust suction pipe 303 and the photovoltaic panel is relatively close. When the hard particle impurity is adhered tightly, it will be pushed down by the dust suction pipe 303 when it contacts the bottom of the dust suction pipe 303. Combined with the increase of the opening degree of the valve seat 304, the suction is increased, so that the hard particle impurity can be easily sucked away, avoiding omission and ensuring the cleaning effect.

[0041] When cleaning, the electric push rod 2048 is started to drive the movable seat 2047 to move downward. The movable seat 2047 moves and pushes the swing arm 2045 downward through the swing arm 2046, thereby driving the two cleaning wheels 2041 to synchronously separate and swing, improving the cleaning range and making the cleaning wheels 2041 closely contact with the photovoltaic panel, improving the cleaning effect. Then the motor 2042 is started, which drives the two cleaning wheels 2041 to synchronously rotate through the transmission belt 2044, so as to clean the upper surface of the photovoltaic panel. In the cleaning process, the dust suction part 201 is started, so that the dust suction seat 203 can be used to concentrate and extract the dust cleaned, completing the cleaning work of the photovoltaic panel. When the electric push rod 2048 drives the cleaning wheels 2041 to swing, the dust suction seat 203 is driven to synchronously move up and down, ensuring the relative position between the dust suction seat 203 and the cleaning wheels 2041 and ensuring the dust suction effect. After the work is completed, the device can be inverted, water is sprayed on the cleaning wheels 2041, and then the electric push rod 2048 is started to drive the movable seat 2047 to move upward, thereby driving the two cleaning wheels 2041 to synchronously approach and swing until they are in contact and extrusion, so as to extrude the absorbed water and residual dust. Repeating the process can complete the cleaning and care work of the cleaning wheels 2041 without the need to manually clean, which is convenient for personnel to use.

[0042] Embodiment two:

[0043] See the attached Figs. 1-7 On the basis of embodiment one, the photovoltaic panel cleaning device provided by the embodiment further comprises a tailing mechanism 4. The tailing mechanism 4 comprises a storage box 401 arranged at the rear end of the shell 101, a cleaning cloth 402 arranged in the storage box 401, and a renewal assembly 403 arranged between the cleaning cloth 402 and the shell 101.

[0044] Specifically, as shown in Fig. 6 The renewal assembly 403 comprises a telescopic rod two 4031 arranged at the rear end of the shell 101, a rack 4034 arranged in the telescopic rod two 4031, a sliding block 4033 arranged on both sides of the rack 4034, an inclined sliding groove 4032 arranged on both sides of the telescopic rod two 4031, a roller two 4035 arranged at the bottom of the telescopic rod two 4031, a gear three 4038 arranged in the shell 101, a roller one 4036 and a roller two 4037 arranged in the storage box 401, the gear three 4038 and the roller one 4036 are connected through a transmission belt two 4039, and the rack 4034 is engaged with the gear three 4038.

[0045] Specifically, the roller two 4037 is located at the bottom of the roller one 4036, and the cleaning cloth 402 is connected with the roller one 4036 and the roller two 4037 through tension.

[0046] Specifically, the rear end of the storage box 401 is provided with a dismounting plate 4011, the shaft 4037 is provided with a threaded block 4012, and the threaded blocks 4012 on the two sides of the storage box 401 are threadedly connected with nuts 4013.

[0047] From the above structure, it can be known that after the upper surface of the photovoltaic panel is cleaned, the residual dust on the upper surface of the photovoltaic panel can be wiped and cleaned by the cleaning cloth 402 during the movement of the device, and the cleaning effect is improved. The outer frame of the photovoltaic panel is slightly thicker than the panel body. When the device completes the cleaning work of a photovoltaic panel, it moves to the next photovoltaic panel in the photovoltaic array. During the movement, when the second roller 4035 contacts the outer frame, it is lifted upward. Since the sliding block 4033 is located at the lowest part of the inclined sliding groove 4032, the rack 4034 cannot move downward, and thus moves upward under the pushing of the second telescopic rod 4031, so as to drive the gear three 4038 to rotate through the meshing of the rack 4034 and the gear three 4038. The gear three 4038 drives the shaft one 4036 to rotate through the transmission belt two 4039, and then drives the cleaning cloth 402 to move in the rolling direction of the shaft one 4036 through the tension and friction, moves the part of the cleaning cloth 402 contaminated with dust into the storage box 401, and moves the clean cleaning cloth 402 to the position in contact with the photovoltaic panel to perform subsequent cleaning work, so as to ensure the cleaning effect. After the second roller 4035 passes over the outer frame, it returns to the original position by relying on its own gravity. The rack 4034 is blocked by the gear three 4038 after contacting the gear three 4038, and then moves obliquely upward under the guidance of the inclined sliding groove 4032, so that the rack 4034 is separated from the gear three 4038, and the meshing relationship is released. When the sliding block 4033 slides to the lowest part of the inclined sliding groove 4032, the sliding block 4033 meshes with the gear three 4038 again and blocks the gear three 4038 from rotating in the initial direction, so that the cleaning cloth 402 moves in one direction, and the cleaning effect is improved. The movement track of the inclined sliding groove 4032 and the sliding block 4033 is matched.

[0048] Example three:

[0049] See the attached Figs. 1-7 On the basis of example two, the application further provides a photovoltaic panel cleaning method, which adopts the photovoltaic panel cleaning device in any one of the above examples, as shown in Fig. 7 The method comprises the following steps:

[0050] Step one: place the shell 101 on the photovoltaic panel, and clamp the shell 101 on the two end frames of the photovoltaic panel by the limiting frame 102, so that the driving wheel 103 contacts the frame of the photovoltaic panel, and then start the driving wheel 103 to drive the shell 101 to move uniformly on the photovoltaic panel;

[0051] Step two: detecting the hard particles on the photovoltaic panel by the detection assembly, and after detection, adjusting the suction force of the dust suction pipe 303 according to the size of the hard particles by the opening adjusting assembly to suck and clean the hard particles;

[0052] Step three: starting the position adjusting assembly 205 during the movement of the shell 101, so that the cleaning assembly 204 is in contact with the upper surface of the photovoltaic panel, and the cleaning assembly 204 is started to sweep the dust on the surface of the photovoltaic panel;

[0053] Step four: wiping and cleaning the surface of the photovoltaic panel after sweeping by the cleaning cloth 402, and after completing the cleaning work of one photovoltaic panel, replacing the cleaning cloth 402 in contact with the photovoltaic panel by the updating assembly 403 to clean the next photovoltaic panel in the photovoltaic array.

[0054] From the above structure, the photovoltaic panel cleaning method provided by the application can clean the photovoltaic panel in the solar photovoltaic array, and the process is as follows: the shell 101 is placed on the photovoltaic panel, the limiting frame 102 is clamped on the frame at both ends of the photovoltaic panel, the driving wheel 103 is in contact with the frame of the photovoltaic panel, the driving wheel 103 is started to drive the shell 101 to move uniformly on the photovoltaic panel; the hard particles on the photovoltaic panel are detected by the support 307, and after detection, the opening of the valve seat 304 is adjusted by the valve block 305 according to the size of the hard particles, and the suction force of the dust suction pipe 303 is dynamically adjusted to suck and clean the hard particles; the motor 2042 is started, the two cleaning wheels 2041 are driven to rotate by the transmission belt 2044 to sweep the dust on the surface of the photovoltaic panel, and the dust is concentrated and extracted by the dust suction seat 203; finally, the surface of the photovoltaic panel after sweeping and extraction is wiped and cleaned by the cleaning cloth 402, and after completing the cleaning work of one photovoltaic panel, the cleaning cloth 402 in contact with the photovoltaic panel is replaced to clean the next photovoltaic panel in the photovoltaic array, so as to improve the cleaning effect of each photovoltaic panel in the photovoltaic array.

[0055] The above is only the preferred embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent flow transformation by using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A photovoltaic panel cleaning device, characterized in that, include: The main body (1) includes a shell (101), and a limiting frame (102) is provided on both sides of the shell (101). The limiting frame (102) is provided with a drive wheel (103) for moving the shell (101). The pretreatment mechanism (3) includes a plurality of suction pipes (303) disposed at the front end of the housing (101), a detection component disposed at the front end of the suction pipes (303), and an opening adjustment component disposed on the suction pipes (303). The opening adjustment component is used to dynamically adjust the suction force of the suction pipes (303) according to the detection result of the detection component. The opening adjustment component includes a valve seat (304) disposed on the suction pipes (303). The device includes a valve block (305), a gear 1 (302) on both sides of the suction pipe (303), a telescopic rod 1 (301) between the gear 1 (302) and the valve block (305), and a gear 2 (306) on both sides of the suction pipe (303). The gear 1 (302) and the gear 2 (306) mesh with each other. The detection component includes a roller 1 (308), and the two sides of the roller 1 (308) are connected by a bracket (307) and two gears 2 (306) respectively. The cleaning mechanism (2) includes a cleaning component (204) disposed within the housing (101) and a position adjustment component (205) disposed between the cleaning component (204) and the housing (101).

2. The photovoltaic panel cleaning device according to claim 1, characterized in that, The cleaning assembly (204) includes a fixed frame (2043) and two cleaning wheels (2041) disposed in the housing (101). The fixed frame (2043) is provided with a motor (2042), and the output end of the motor (2042) is connected to the input end of the cleaning wheel (2041) by a transmission belt (2044).

3. The photovoltaic panel cleaning device according to claim 2, characterized in that, The position adjustment assembly (205) includes an electric push rod (2048) disposed on the top of the housing (101), a movable seat (2047) disposed at the output end of the electric push rod (2048), a first swing arm (2045) disposed between the sweeping wheel (2041) and the housing (101), and a second swing arm (2046) disposed between the first swing arm (2045) and the movable seat (2047).

4. A photovoltaic panel cleaning device according to claim 3, characterized in that, A vacuuming seat (203) is provided between the movable seat (2047) and the fixed frame (2043). A vacuuming component (201) is provided on the top of the housing (101). The vacuuming component (201) is connected to the vacuuming seat (203) and the vacuuming pipe (303) through a flexible hose (202).

5. A photovoltaic panel cleaning device according to claim 1, characterized in that, It also includes a finishing mechanism (4), which includes a storage box (401) located at the rear end of the housing (101), a cleaning cloth (402) located inside the storage box (401), and a renewal component (403) located between the cleaning cloth (402) and the housing (101).

6. A photovoltaic panel cleaning device according to claim 5, characterized in that, The updating component (403) includes a telescopic rod two (4031) located at the rear end of the housing (101), a rack (4034) located in the telescopic rod two (4031), sliders (4033) located on both sides of the rack (4034), inclined grooves (4032) located on both sides of the telescopic rod two (4031), a roller two (4035) located at the bottom of the telescopic rod two (4031), a gear three (4038) located in the housing (101), and roller one (4036) and roller two (4037) located in the storage box (401). The gear three (4038) and roller one (4036) are connected by a transmission belt two (4039), and the rack (4034) meshes with the gear three (4038).

7. A photovoltaic panel cleaning device according to claim 6, characterized in that, The second roller (4037) is located at the bottom of the first roller (4036), and the cleaning cloth (402) is connected to the first roller (4036) and the second roller (4037) respectively by tension.

8. A photovoltaic panel cleaning device according to claim 6, characterized in that, The storage box (401) has a detachable plate (4011) at its rear end.

9. A method for cleaning photovoltaic panels, characterized in that, The photovoltaic panel cleaning device as described in claim 5 includes the following steps: Step 1: Place the housing (101) on the photovoltaic panel and use the limiting frame (102) to lock it on the frames at both ends of the photovoltaic panel so that the drive wheel (103) contacts the photovoltaic panel frame. Start the drive wheel (103) to drive the housing (101) to move at a constant speed on the photovoltaic panel. Step 2: Use the detection component to detect hard particles on the photovoltaic panel. After detection, according to the size of the hard particles, use the opening adjustment component to dynamically adjust the suction power of the suction pipe (303) to suck up and clean the hard particles. Step 3: During the movement of the housing (101), the position adjustment component (205) is activated, so that the cleaning component (204) contacts the upper surface of the photovoltaic panel, and the cleaning component (204) is activated to sweep off the dust on the surface of the photovoltaic panel; Step 4: Use a cleaning cloth (402) to wipe and clean the surface of the photovoltaic panel after it has been cleaned and removed. After cleaning one photovoltaic panel, use a replacement component (403) to replace the cleaning cloth (402) that is in contact with the photovoltaic panel in order to clean the next photovoltaic panel in the photovoltaic array.

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