Photovoltaic module with automatic cleaning system

Abstract

The present invention relates to the technical field of photovoltaic modules, and provides a photovoltaic module with an automatic cleaning system. The photovoltaic module comprises a brushing mechanism and a liquid supply mechanism, wherein the brushing mechanism is arranged on a photovoltaic module mounting frame, and the liquid supply mechanism is arranged on one side of the photovoltaic module mounting frame. In the present invention, the brushing mechanism cleans a solar panel while moving across the photovoltaic module mounting frame, the liquid supply mechanism flushes a surface of the solar panel to remove debris such as dust and dirt covering the surface of the solar panel, thereby ensuring a sunlight receiving effect of the solar panel, and stabilizing the power generation capacity of a power generation assembly.

Description

Photovoltaic module with automatic cleaning system Technical Field

[0001] The present invention relates to the technical field of photovoltaic modules, in particular to a photovoltaic module with an automatic cleaning system. Background Art

[0002] Photovoltaic power generation systems, including photovoltaic modules, utilize the photovoltaic effect of semiconductor materials to convert solar radiation into electrical energy. These systems draw their energy from inexhaustible solar energy, a clean, safe, and renewable energy source. The photovoltaic power generation process is environmentally friendly and eco-friendly, and the development prospects for photovoltaic power generation are promising.

[0003] The solar panels and mounting frames in photovoltaic modules operate outdoors, exposed to a variety of harsh environments, including dust, temperature fluctuations, humidity, and storms. The solar panels in photovoltaic modules are easily covered by dust, dirt, leaves, and bird droppings, which can lead to uneven heating of the solar panels, reducing the power generation of the modules and making them more susceptible to localized coking, causing short circuits in the photovoltaic modules and fires.

[0004] Existing photovoltaic modules usually do not have automatic cleaning systems, and are easily covered by dust, dirt, leaves, bird droppings, etc., which affects the power generation efficiency of the photovoltaic power generation system. Summary of the Invention

[0005] The present invention provides a photovoltaic module with an automatic cleaning system to solve the technical problem mentioned above that existing photovoltaic modules usually do not have an automatic cleaning system and are easily covered by dust, dirt, leaves, bird droppings, etc., which affects the power generation efficiency of the photovoltaic power generation system.

[0006] To solve the above technical problems, the present invention discloses a photovoltaic module with an automatic cleaning system, including a brushing mechanism and a liquid supply mechanism. The brushing mechanism is arranged on a photovoltaic module mounting frame, and the liquid supply mechanism is arranged on one side of the photovoltaic module mounting frame.

[0007] Preferably, the brushing mechanism includes a fixing frame, and the fixing frames are respectively arranged on the left and right sides of the photovoltaic component mounting frame. The two screw rods are respectively connected to the two fixing frames, and the screw rods extend along the front and rear directions. The driving assembly is used to drive the screw rods. The left and right ends of the mobile box are respectively threadedly connected to the two screw rods. The two ends of the cleaning roller brush are connected to the bottom of the mobile box, and the surface of the cleaning roller brush contacts the surface of the solar panel.

[0008] Preferably, the fixed box is fixedly connected to the rear side of the photovoltaic component mounting frame, and the driving assembly is located in the fixed box. The driving assembly includes: a dual-output motor, the dual-output motor is fixedly connected in the fixed box, the output shafts at the left and right ends of the dual-output motor are respectively fixedly connected to bevel gear one, the two bevel gears two are fixedly set on the two screw rods one, and the two bevel gears one are respectively engaged with the two bevel gears two.

[0009] Preferably, the mobile box is provided with:

[0010] The water tank is connected to the mobile box by sliding up and down. The water tank is connected to an auxiliary inlet pipe, and the auxiliary inlet pipe is connected to a first electric valve. The N-shaped tube is fixedly connected to the lower end of the water tank through a fixed bracket. The upper end of the N-shaped tube is connected to the water outlet of the water tank through an auxiliary discharge pipe. The auxiliary discharge pipe is provided with a second electric valve. Several spring rods are fixed between the N-shaped tube and the inner wall of the lower end of the mobile box.

[0011] Two groups of left-right symmetrical connection components, the connection components include: an arc tube, an auxiliary opening is set on the upper part of the arc tube, the upper end of the arc tube is sealed, the upper part of the arc tube is rotatably connected to the inner wall of the mobile box through a rotating shaft in the front-to-back direction, a support spring is set between the arc tube and the inner wall of the lower end of the mobile box, a mounting frame is set at the lower end of the arc tube, the cleaning roller brush is rotatably set on the mounting frame, and an inlet and outlet for the cleaning roller brush to enter and exit is set at the lower end of the mobile box, and the inlet and outlet are provided with automatically opening and closing sealed doors.

[0012] Preferably, the liquid supply mechanism includes a water tank and a cleaning assembly. The water tank is used to supply water to the cleaning assembly. A water adding pipe for adding water is also provided on one side of the water tank.

[0013] Preferably, the cleaning component includes a water suction pipe, which is connected to the water inlet end of the water pump, and a water flow pipe is connected to the water outlet end of the water pump. The water outlet pipe is movably set on the top of the water tank, one side of the limit block is fixed on the water outlet pipe, and the other end of the limit block is slidably set in a slide groove opened on the top of the water tank. An elastic hose connects the water flow pipe with one end of the water outlet pipe, and a nozzle is set directly above the solar panel and the nozzle is connected to the other end of the water outlet pipe.

[0014] Preferably, the circulation component includes a water inlet trough, which is fixed on one side of the water tank, a sleeve block is fixed on the inner wall of the water tank, a push rod slides horizontally through the sleeve block, push block one and push block two are fixed on the push rod, screw rod two is rotatably arranged on the top of the water tank through a bearing, one end of screw rod two extends into the water inlet trough, a power module is arranged in the water inlet trough and is connected to screw rod two for synchronous rotation, the push rod is connected to the top of the power module, the movable sleeve is fixed to the bottom of the water outlet pipe, the movable sleeve is threadedly connected to screw rod two, both ends of the water inlet pipe are respectively connected to the water pipe and the bottom of the water inlet trough, the first water distribution pipe is connected to the right front side of the bottom of the water inlet trough, and the second water distribution pipe is connected to the left rear side of the bottom of the water inlet trough.

[0015] Preferably, the power module includes a propeller, push plate 1 is arranged at the top outside the water inlet trough, push plate 2 is arranged at the bottom inside the water inlet trough, push plate 2 is provided with a through hole corresponding to the pipe mouth of the first water distribution pipe or the second water distribution pipe, push plate 2 is provided with a connecting hole connected to the first water distribution pipe or the second water distribution pipe, and a square hole for accommodating the connecting plate to pass through is provided on the top of the water inlet trough, push plate 1 and push plate 2 are respectively connected to the top and bottom of the connecting plate, the propeller, connecting plate and shaft sleeve 2 are coaxially fixed, shaft sleeve 2 is clamped on one end of screw 2 by a guide key, and the drain pipe is arranged on the inner wall of the water tank corresponding to the water inlet trough.

[0016] Preferably, it also includes a filter assembly, which is arranged on the inner wall of the water storage tank. The filter assembly includes a T-block, an insert block, a return pipe, a filter box, a filter element and a water outlet. The T-block is fixed on the inner wall of the water storage tank, the insert block is fixed on the outer wall of the filter box, the insert block is detachable and inserted outside the T-block, the filter element is arranged in the middle of the filter box, the water outlet is arranged on the bottom surface of the filter box, one end of the return pipe is arranged at the bottom of the lower end of the photovoltaic component mounting frame, and the other end of the return pipe is connected to the filter box.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] FIG1 is a schematic diagram of the main structure of a first type of mobile box provided in the present invention;

[0020] FIG2 is a schematic diagram of the top view of the structure of the present invention;

[0021] FIG3 is a partial structural diagram of a second embodiment of a mobile box of the present invention;

[0022] FIG4 is a schematic structural diagram of a liquid supply mechanism of the present invention;

[0023] FIG5 is a schematic structural diagram of part A in FIG4 ;

[0024] FIG6 is a schematic structural diagram of the filter assembly of the present invention.

[0025] In the figure: 1. Brushing mechanism; 11. Driving assembly; 111. Fixed box; 112. Dual output motor; 12. Fixed frame; 13. Bevel gear 1; 14. Bevel gear 2; 15. Screw 1; 16. Moving box; 161. Water tank; 162. N-shaped pipe; 163. Auxiliary drainage pipe; 164. Spring rod; 165. Arc pipe; 166. Support spring; 167. Mounting frame; 168. Auxiliary opening; 17. Cleaning roller brush; 18. Cleaning roller cotton; 2. Liquid supply mechanism; 21. Water tank; 22. Cleaning assembly; 221. Water pump; 222. Water pump; 223. Water pipe; 224. Elastic hose; 225. Water outlet pipe; 226. Limit block; 227 , nozzle; 23, circulation component; 231, water inlet; 232, screw 2; 233, push rod; 234, sleeve block; 235, push block 1; 236, push block 2; 237, water inlet pipe; 238, first water distribution pipe; 239, movable sleeve; 240, power module; 241, second water distribution pipe; 2381, propeller; 2382, sleeve 2; 2383, push plate 1; 2384, push plate 2; 2385, connecting plate; 2386, drain pipe; 3, filter component; 31, T-block; 32, plug block; 33, return pipe; 34, filter box; 35, filter element; 36, water outlet; 4, photovoltaic module mounting frame; 5, solar panel; 6, connecting hole. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] The present invention provides the following embodiments Example 1

[0029] An embodiment of the present invention provides a photovoltaic module with an automatic cleaning system, as shown in Figure 1, including a brushing mechanism 1 and a liquid supply mechanism 2. The brushing mechanism 1 is arranged on a photovoltaic module mounting frame 4, and the liquid supply mechanism 2 is arranged on one side of the photovoltaic module mounting frame 4.

[0030] The beneficial effects of the above technical solution are as follows: the brushing mechanism 1 moves above the photovoltaic module mounting frame 4 while simultaneously cleaning the solar panel 5, and the liquid supply mechanism 2 flushes the surface of the solar panel 5, removing debris such as dust and dirt from the surface of the solar panel 5, thereby ensuring that the solar panel 5 receives light effectively and stabilizing the power generation of the power generation module. The present invention solves the technical problem raised in the background art: existing photovoltaic modules generally lack automatic cleaning systems, which can easily affect the power generation efficiency of the photovoltaic power generation system due to dust, dirt, leaves, bird droppings, etc. covering the surface. Example 2

[0031] Based on Example 1, as shown in Figures 2 and 3, the brushing mechanism 1 includes a fixing frame 12, and the fixing frames 12 are respectively provided on the left and right sides of the photovoltaic module mounting frame 4. Two screws 15 are respectively connected to the two fixing frames 12, and the screws 15 extend in the front-to-back direction. The driving assembly 11 is used to drive the screws 15. The left and right ends of the moving box 16 are respectively threadedly connected to the two screws 15. The two ends of the cleaning roller brush 17 are connected to the bottom of the moving box 16, and the surface of the cleaning roller brush 17 contacts the surface of the solar panel 5. Among them, the ends of the cleaning roller brush 17 and the cleaning roller cotton 18 are connected to the bottom of the moving box 16 at a front-to-back interval. As shown in Figure 1, the two ends of the cleaning roller brush 17 can be directly connected to the bottom of the moving box 16, or the method shown in Figure 3 can be adopted;

[0032] Preferably, the fixing box 111 is fixedly connected to the rear side of the photovoltaic component mounting frame 4, and the driving component 11 is located in the fixing box 111. The driving component 11 includes: a dual-output motor 112, the dual-output motor 112 is fixedly connected in the fixing box 111, and the output shafts at the left and right ends of the dual-output motor 112 are respectively fixedly connected to the bevel gear 1 13, and the two bevel gears 2 14 are fixedly set on the two screws 15, and the two bevel gears 13 are respectively engaged with the two bevel gears 2 14.

[0033] The working principle and beneficial effects of the above technical solution are as follows: In the drive assembly 11, the dual-output motor 112 drives the two bevel gears 13 to rotate. Through the cooperation of bevel gear 13 and bevel gear 2 114, the two screws 15 are driven to rotate synchronously on the fixed frame 12. The movable box 16 moves back and forth along the direction of the two screws 15 via the thread. As the movable box 16 moves, the cleaning roller brush 17 and cleaning roller cotton 18 move across the surface of the solar panel 5 to clean the surface of the solar panel 5. The above-mentioned screw 15 expands the cleaning range of the cleaning roller brush 17 and cleaning roller cotton 18. When cleaning is not required, the cleaning roller brush 17 and cleaning roller cotton 18 can be located at the rear side of the photovoltaic module mounting frame without affecting the use of the solar panel 5.

[0034] Example 3. Based on any one of Examples 1-2, as shown in Figures 1, 4, and 5, the liquid supply mechanism 2 includes a water tank 21, a cleaning component 22, and a circulation component 23. The circulation component 23 is arranged on the inner wall of the water tank 21, and the cleaning component 22 is arranged on the circulation component 23. A water adding pipe for adding water is also provided on one side of the water tank 21.

[0035] The cleaning assembly 22 includes a water pump 221 connected to the water inlet of a water pump 222, a water pipe 223 connected to the water outlet of the water pump 222, and a water outlet pipe 225 movably mounted on the top of the water tank 21. One end of a stopper 226 is fixed to the water outlet pipe 225, and the other end of the stopper 226 is slidably mounted in a chute provided on the top of the water tank 21. An elastic hose 224 connects the water pipe 223 to one end of the water outlet pipe 225. A nozzle 227 is positioned directly above the solar panel 5 and is in communication with the other end of the water outlet pipe 225. The stopper 226 can be driven to move horizontally by a horizontal drive assembly.

[0036] The working principle and beneficial effects of the above technical solution are as follows: water for cleaning the solar panel 5 is added to the water tank 21 through the water adding pipe, the cleaning component 22 sprays water to clean the solar panel 5, and the nozzle 227 can expand the flushing range along the water outlet pipe 225.

[0037] Example 4, based on Example 3, as shown in FIG3, the movable box 16 is provided with:

[0038] The water tank 161 is connected to the movable box 16 by sliding up and down. The water tank 161 is connected to an auxiliary inlet pipe, which is connected to a first electric valve. The N-shaped tube 162 is fixedly connected to the lower end of the water tank 161 via a fixed bracket. The upper end of the N-shaped tube 162 is connected to the water outlet of the water tank 161 via an auxiliary drain pipe 163. The auxiliary drain pipe 163 is provided with a second electric valve. A plurality of spring rods 164 are fixed between the N-shaped tube 162 and the inner wall of the lower end of the movable box 16.

[0039] Two groups of left-right symmetrical connection components, the connection components include: an arc tube 165, an auxiliary opening 168 is set on the upper part of the arc tube 165, the upper end of the arc tube 165 is sealed, the upper part of the arc tube 165 is rotatably connected to the inner wall of the moving box 16 through a rotating shaft in the front-to-back direction, a support spring 166 is set between the arc tube 165 and the inner wall of the lower end of the moving box 16, a mounting frame 167 is set at the lower end of the arc tube 165, the cleaning roller brush 17 is rotatably set on the mounting frame 167, and an inlet and outlet for the cleaning roller brush 17 to enter and exit is set at the lower end of the moving box, wherein the inlet and outlet can be provided with a sealed door that opens and closes automatically.

[0040] The working principle and beneficial effects of the above technical solution are:

[0041] 1. When the cleaning roller brush 17 is not needed, as shown in FIG3 , the cleaning roller brush 17 is stored in the movable box 16 to protect the cleaning roller brush 17;

[0042] 2. When the cleaning roller brush 17 needs to be used, the auxiliary inlet pipe is connected to the water outlet pipe 225 through the connecting hose. When water needs to be added to the water tank, the first electric valve is opened to allow water to enter the water tank 161. Under the action of the gravity of the water, the water tank 161 moves downward, so that the two ends of the lower part of the N-shaped tube 162 are respectively inserted into the two auxiliary openings 168. The N-shaped tube 162 continues to move downward with the water tank 161, and the arc tube 165 swings downward, so that the cleaning roller brush 17 extends out of the inlet and outlet for cleaning the solar panel. The water reaches the cleaning roller brush 17 through the water tank 161, the auxiliary drain pipe 163, and the arc tube 165, and can clean the cleaning roller brush 17, thereby ensuring the use effect of the cleaning roller brush 17.

[0043] 3. The present invention can achieve the up and down shaking of the cleaning roller brush 17 by adjusting the amount and flow rate of water entering the water tank 161, which is convenient for shaking out impurities during the cleaning process of the cleaning roller brush 17, and the movement of the cleaning roller brush 17 is controlled by water without the need for other power, which is convenient to control. Example 5

[0044] On the basis of embodiment 3 or 4, as shown in Figures 1, 4, and 5, the circulation component 23 includes a water inlet trough 231, which is fixed to one side of the water tank 21, a sleeve 234 is fixed to the inner wall of the water tank 21, a push rod 233 slides horizontally through the sleeve 234, a push block 1 235 and a push block 236 are fixed to the push rod 233, a screw 232 is rotatably arranged on the top of the water tank 21 through a bearing, one end of the screw 232 extends into the water inlet trough 231, and a power module 240 is provided. It is placed in the water inlet trough 231 and is connected to the second screw 232 for synchronous rotation. The push rod 233 is connected to the top of the power module 240. The movable sleeve 239 is fixed to the bottom of the water outlet pipe 225. The movable sleeve 239 is threadedly connected to the second screw 232. The two ends of the water inlet pipe 237 are respectively connected to the water pipe 223 and the bottom of the water inlet trough 231. The first water distribution pipe 238 is connected to the right front side of the bottom of the water inlet trough 231, and the second water distribution pipe 241 is connected to the left rear side of the bottom of the water inlet trough 231.

[0045] The power module 240 includes a propeller 2381, a push plate 1 2383 is arranged at the top outside the water inlet trough 231, and a push plate 2 2384 is arranged at the bottom inside the water inlet trough 231. The push plate 2 2384 is provided with a connecting hole 6 connected to the first water distribution pipe 238 or the second water distribution pipe 241. A square hole is provided on the top of the water inlet trough 231 for accommodating the connecting plate 2385 to pass through. The push plate 1 2383 and the push plate 2 2384 are respectively connected to the top and bottom of the connecting plate 2385. The propeller 2381, the connecting plate 2385 and the shaft sleeve 2 2382 are coaxially fixed. The shaft sleeve 2382 is clamped on one end of the screw 232 through a guide key (which can be a sliding key). The drain pipe 2386 is arranged on the inner wall of the water tank 21 corresponding to the water inlet trough 231.

[0046] The working principle and beneficial effects of the above technical solution are as follows: the water in the water tank 21 passes through the suction pipe 221 to the water pipe 223 under the suction force of the water pump 222, and then reaches the outlet pipe 225 through the elastic hose 224, and is then sprayed out from the nozzle 227 on the outlet pipe 225 to clean the stains covering the solar panel 5. The limit block 226 limits the outlet pipe 225 on the inner wall of the water tank 21, facilitating the horizontal movement of the outlet pipe 225.

[0047] The present invention can be provided with a horizontal driving assembly for driving the horizontal movement of the push plate 1 2383, the push plate 2 2384, and the connecting plate 2385 as a whole, which can be an electric telescopic rod, or can be driven by the cooperation of a gear rack to move horizontally;

[0048] The sleeve block 234 limits the push rod 233 to ensure that the push rod 233 only moves in the horizontal direction. Pushing the push block 1 235 and the push block 236 can control the horizontal movement of the push rod 233. The horizontal movement of the push rod 233 drives the horizontal movement of the power module 240. The water in the water pipe 223 enters the water inlet tank 231 through the water inlet pipe 237 and the first water branch pipe 238 (or the second water branch pipe), which facilitates the power module 240 and the water in the water inlet tank 231 to generate power to drive the screw 2 232 to rotate. The rotation of the screw 232 drives the movable sleeve 239 to move along the direction of the screw 2 232 through the thread, and the water outlet pipe 225 moves at the same time.

[0049] When the push rod 233 moves horizontally, it drives the push plate 1 2383, the push plate 2384, the connecting plate 2385, the propeller 2381 and the shaft sleeve 2382 to move horizontally. When the push rod 233 moves to the right, water enters the water tank 231 from the water inlet pipe 237 and the first water distribution pipe 238. At this time, the pipe opening of the second water distribution pipe 241 is closed by the push plate 2384. The water impacts the propeller 2381 through the connecting hole 6 of the first water distribution pipe 238 and the push plate 2384, causing the propeller 2381 to rotate. 232 rotates synchronously with the propeller 2381, and the movable sleeve 239 drives the outlet pipe 225 to move horizontally to the left along the screw 232 from the rightmost side, until the outlet pipe 225 pushes the push block 1 235 to move, the push rod 233 moves to the left, the push plate 1 2383, the push plate 2384, the connecting plate 2385, the propeller 2381 and the shaft sleeve 2382 move to the left as a whole, and the connecting hole 6 of the push plate 2384 and the propeller 2381 move to the top of the second water distribution pipe 241. At this time, the first water distribution pipe 2 38 is closed by the second push plate 2384, and water enters the water tank 231 from the water inlet pipe 237 and the second water distribution pipe 241, impacting the propeller 2381 in the opposite direction, causing the propeller 2381 to rotate in the opposite direction, and the second screw 232 to rotate in the opposite direction. The water outlet pipe 225 moves in the opposite direction along the second screw 232 until the water outlet pipe 225 pushes the second push block 236 to move, and the push rod 233 moves to the right. The push plate 1 2383, the push plate 2384, the connecting plate 2385, the propeller 2381 and the second sleeve 2382 move to the right as a whole, and the push plate 1 2383, the push plate 2384, the connecting plate 2385, the propeller 2381 and the second sleeve 2382 move to the right as a whole. The connecting hole 6 of plate 2384 and the propeller 2381 move to the top of the water inlet pipe 237, and the water enters the water inlet trough 231 from the first water distribution pipe 238 and the connecting hole 6 of push plate 2384. At this time, the pipe mouth of the second water distribution pipe 241 is closed by push plate 2384, and the drain pipe 2386 discharges the water in the water inlet trough 231, so that the water forms a flowing state, and the outlet pipe 225 makes a circular reciprocating motion along the length direction of screw 232, so that the nozzle 227 sprays the surface of the solar panel 5 back and forth.

[0050] Example 6, based on Example 5, as shown in Figure 4, further includes a filter component 3, which is arranged on the inner wall of the water tank 21. The filter component 3 includes a T-block 31, an insert block 32, a return pipe 33, a filter box 34, a filter element 35 and a water outlet 36. The T-block 31 is fixed on the inner wall of the water tank 21, the insert block 32 is fixed on the outer wall of the filter box 34, the insert block 32 is detachable and inserted outside the T-block 31, the filter element 35 is arranged in the middle of the filter box 34, the water outlet 36 is arranged on the bottom surface of the filter box 34, one end of the return pipe 33 is arranged at the bottom of the lower end of the photovoltaic component mounting frame 4, and the other end of the return pipe 33 is connected to the filter box 34.

[0051] The beneficial effects of the above technical solution are as follows: the plug block 32 can be inserted into the T-block 31T to fix the filter box 34 on the inner wall of the water tank 21, which facilitates the disassembly and assembly of the filter assembly 3, and the water discharged from the solar panel 5 and the drain pipe 2386 is drained into the filter box 34. The filtered water is then passed through the filter element 35 and flows from the filter box 34 through the water outlet 36 back to the water tank 21, so that the water used to clean the solar panel 5 can be recycled, greatly saving water.

[0052] Example 7, based on any one of Examples 1-6, further comprises:

[0053] The first image acquisition device is used to acquire an actual surface image of the solar panel,

[0054] The first storage module stores first standard surface images of the solar panel surface containing different foreign matter and second standard surface images of the cleaning roller brush 17, and each first standard surface image corresponds to a cleaning level (the more difficult to clean, the higher the cleaning level, and the longer the cleaning time and the greater the cleaning intensity required);

[0055] The image processing module includes: a first dividing unit for dividing the actual surface image of the solar panel into a plurality of image regions along a dividing line perpendicular to the moving direction of the moving box; a second dividing unit for dividing the image region into M actual sub-image blocks; and a similarity matching unit for performing similarity matching between the actual sub-image blocks and the first standard surface image.

[0056] An evaluation module, configured to determine a cleanliness evaluation coefficient of each image area based on the information obtained by the image processing module;

[0057]

[0058] Q j is the cleanliness evaluation coefficient of the jth image area, S ij is the surface area of ​​the foreign matter in the i-th sub-image block of the j-th image region, A ijis the highest cleaning level of foreign matter in the i-th sub-image block of the j-th image area, δ1 is the first weight coefficient (a value greater than 1 and less than 2), δ2 is the second weight coefficient (a value greater than 1 and less than 2), and max represents the maximum value;

[0059] The second storage module stores different cleaning evaluation coefficients Q j 、max(S ij A ij ) matching cleaning parameters, the cleaning parameters including: theoretical moving speed of the mobile box, theoretical number of reciprocating movements of the mobile box, theoretical vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel (different distances result in different cleaning strengths);

[0060] A second image acquisition device is used to acquire an actual surface image of the cleaning roller brush 17;

[0061] a control module, configured to control the brushing mechanism to clean each image area based on the cleaning parameters matched to each image area;

[0062] a comparison and early warning module, configured to compare the actual surface image of the cleaning roller brush 17 with a second standard surface image of the cleaning roller brush 17 based on the same coordinate system to obtain a comparison result; and a control module to determine a state coefficient P of the cleaning roller brush 17 based on the following formula for each image area before cleaning, and to issue a first early warning when the state coefficient of the cleaning roller brush 17 is greater than a corresponding preset value;

[0063]

[0064] S is the number of key points of the second standard surface image of the cleaning roller brush 17, x K1 、y K1 、z K1 They are the x-coordinate, y-coordinate, and z-coordinate of the k-th key point of the actual surface image of the cleaning roller brush 17, respectively. K2 、y K2 、z K2 They are respectively the x-coordinate, y-coordinate and z-coordinate of the kth key point of the second standard surface image of the cleaning roller brush 17, τ1 is the influence coefficient of the x-coordinate abnormality on the cleaning state of the cleaning roller brush 17, τ2 is the influence coefficient of the y-coordinate abnormality on the cleaning state of the cleaning roller brush 17, and τ3 is the influence coefficient of the z-coordinate abnormality on the cleaning state of the cleaning roller brush 17.

[0065] a second calculation module, configured to determine the current image area to be cleaned and the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel based on the comparison and warning module, and to control the operation of the cleaning roller brush 17 based on the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel;

[0066]

[0067] H is the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel when cleaning the current image area; H0 is the theoretical vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel when cleaning the current image area obtained based on the second storage module; μ1 is x K1 Relative to x K2 The influence of the deviation direction on the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel; μ2 is y K1 Relative to y K2 The influence of the deviation direction on the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel; μ3 is z K1 Relative to z K1 The degree of influence of the deviation direction on the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel.

[0068] The beneficial effects of the above technical solution are:

[0069] 1. By dividing the image into several areas, it is convenient to clean the corresponding image area according to the actual foreign matter status (cleaning assessment coefficient) of each image area to ensure the cleaning effect;

[0070] And determine the cleaning evaluation coefficient of each image area, specifically: obtain the cleaning state parameter of each image block according to the surface area of ​​the foreign matter in the sub-image block of the image area and the highest cleaning level of the foreign matter in the sub-image block of the image area ( ), and according to the parameters of the most difficult to clean image block (max (S ij A ij )) determining a cleaning assessment coefficient for each image area to ensure reliable cleaning of the solar panel area corresponding to the image area;

[0071] Then, based on the cleaning evaluation coefficient of each image region, the parameters of the most difficult to clean image block (max (S ij A ij )) Determine the cleaning parameters for the image area to ensure a cleaning effect that is compatible with the foreign matter state of the image area.

[0072] 2. Based on the comparison between the actual surface image of the cleaning roller brush 17 and the second standard surface image of the cleaning roller brush 17, the state coefficient (position state) of the cleaning roller brush 17 is determined. When the state coefficient of the cleaning roller brush 17 is abnormal, an alarm is promptly issued to remind the user to adjust or replace the cleaning roller brush 17, so as to prevent the state coefficient (position state) of the cleaning roller brush 17 from affecting the cleaning effect;

[0073] 3. Based on the comparison and early warning module, the current image area to be cleaned, the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel, and the operation of the cleaning roller brush 17 are controlled by the target vertical distance between the cleaning roller brush 17 and the surface to be cleaned of the solar panel; the position parameters of the solar panel area corresponding to the cleaning image area of ​​the cleaning roller brush 17 are adaptively adjusted according to the state coefficient (position state) of the cleaning roller brush 17 to ensure the cleaning effect.

[0074] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A photovoltaic module with an automatic cleaning system, characterized in that: It comprises a brushing mechanism (1) and a liquid supply mechanism (2), wherein the brushing mechanism (1) is arranged on a photovoltaic component mounting frame (4), and the liquid supply mechanism (2) is arranged on one side of the photovoltaic component mounting frame (4).

2. The photovoltaic module with an automatic cleaning system according to claim 1, characterized in that: The brushing mechanism (1) comprises a fixing frame (12), the fixing frames (12) being respectively arranged on the left and right sides of the photovoltaic module mounting frame (4), two screw rods (15) being respectively connected to the two fixing frames (12), the screw rods (15) extending in the front-rear direction, the driving assembly (11) being used to drive the screw rods (15), the left and right ends of the moving box (16) being respectively threadedly connected to the two screw rods (15), the two ends of the cleaning roller brush (17) being connected to the bottom of the moving box (16), and the surface of the cleaning roller brush (17) being in contact with the surface of the solar panel (5).

3. The photovoltaic module with an automatic cleaning system according to claim 2, characterized in that: The fixing box (111) is fixedly connected to the rear side of the photovoltaic component mounting frame (4); the driving component (11) is located in the fixing box (111); the driving component (11) comprises: a dual output motor (112); the dual output motor (112) is fixedly connected to the fixing box (111); the output shafts at the left and right ends of the dual output motor (112) are respectively fixedly connected to bevel gear one (13); two bevel gears two (14) are fixedly arranged on two screw rods one (15); and the two bevel gears one (13) are respectively meshed with the two bevel gears two (14).

4. The photovoltaic module with an automatic cleaning system according to claim 2, characterized in that: The movable box (16) is provided with: A water tank (161) is connected to the mobile box (16) in an upward and downward sliding manner. The water tank (161) is connected to an auxiliary inlet pipe, and the auxiliary inlet pipe is connected to a first electric valve. An n-shaped tube (162) is fixedly connected to the lower end of the water tank (161) via a fixed bracket. The upper end of the n-shaped tube (162) is connected to the water outlet of the water tank (161) via an auxiliary drain pipe (163). The auxiliary drain pipe (163) is provided with a second electric valve. A plurality of spring rods (164) are fixed between the n-shaped tube (162) and the inner wall of the lower end of the mobile box (16). Two groups of left-right symmetrical connection components, the connection components comprising: an arc tube (165), an auxiliary opening (168) being arranged at the upper part of the arc tube (165), the upper end of the arc tube (165) being sealed, the upper part of the arc tube (165) being rotatably connected to the inner wall of a moving box (16) via a rotating shaft in the front-rear direction, a supporting spring (166) being arranged between the arc tube (165) and the inner wall of the lower end of the moving box (16), a mounting frame (167) being arranged at the lower end of the arc tube (165), the cleaning roller brush (17) being rotatably arranged on the mounting frame (167), an inlet and outlet for the cleaning roller brush (17) to enter and exit being arranged at the lower end of the moving box (16), and the inlet and outlet being provided with a sealing door which opens and closes automatically.

5. The photovoltaic module with an automatic cleaning system according to claim 1, characterized in that: The liquid supply mechanism (2) comprises a water storage tank (21) and a cleaning component (22). The water storage tank (21) is used to supply water to the cleaning component (22). A water supply pipe for adding water is also provided on one side of the water storage tank (21).

6. The photovoltaic module with an automatic cleaning system according to claim 5, characterized in that: The cleaning component (22) comprises a water suction pipe (221), the water suction pipe (221) is connected to the water inlet end of the water pump (222), the water flow pipe (223) is connected to the water outlet end of the water pump (222), the water outlet pipe (225) is movably arranged on the top of the water storage tank (21), one side of the limit block (226) is fixed on the water outlet pipe (225), the other end of the limit block (226) is slidably arranged in a slide groove opened on the top of the water storage tank (21), an elastic hose (224) connects the water flow pipe (223) with one end of the water outlet pipe (225), and a nozzle (227) is arranged directly above the solar panel (5) and the nozzle (227) is connected to the other end of the water outlet pipe (225).

7. The photovoltaic module with an automatic cleaning system according to claim 6, characterized in that: The circulation assembly (23) comprises a water inlet trough (231), the water inlet trough (231) is fixed to one side of the water storage tank (21), a sleeve block (234) is fixed to the inner wall of the water storage tank (21), a push rod (233) slides horizontally through the sleeve block (234), a push block 1 (235) and a push block 2 (236) are fixed to the push rod (233), a screw rod 2 (232) is rotatably arranged on the top of the water storage tank (21) via a bearing, one end of the screw rod 2 (232) extends into the water inlet trough (231), a power module (240) is arranged in the water inlet trough (231) and is synchronously rotatably connected to the screw rod 2 (232), and the push rod (233) is connected to the top of the power module (240), the movable sleeve (239) is fixed to the bottom of the water outlet pipe (225), the movable sleeve (239) is threadedly connected to the second screw rod (232), the two ends of the water inlet pipe (237) are respectively connected to the water pipe (223) and the bottom of the water inlet trough (231), the two ends of the first water branch pipe (238) and the second water branch pipe are respectively connected to the water inlet pipe (237) and the bottom of the water inlet trough (231), the first water branch pipe (238) is connected to the right front side of the bottom of the water inlet trough (231), and the second water branch pipe (241) is connected to the left rear side of the bottom of the water inlet trough (231).

8. The photovoltaic module with automatic cleaning system according to claim 7, characterized in that: The power module (240) includes a propeller (2381), a push plate 1 (2383) arranged at the top outside the water inlet tank (231), a push plate 2 (2384) arranged at the bottom inside the water inlet tank (231), a through hole corresponding to the pipe opening of the first water distribution pipe (238) or the second water distribution pipe (241) is opened on the push plate 2 (2384), and a connecting hole (6) connected to the first water distribution pipe (238) or the second water distribution pipe (241) is provided on the push plate 2 (2384). A square hole is provided on the top of the water tank (21) for allowing the connecting plate (2385) to pass through, the first push plate (2383) and the second push plate (2384) are respectively connected to the top and bottom of the connecting plate (2385), the propeller (2381), the connecting plate (2385) and the second shaft sleeve (2382) are coaxially fixed, the second shaft sleeve (2382) is clamped on one end of the second screw rod (232) through a guide key, and the drainage pipe (2386) is arranged on the inner wall of the water storage tank (21) corresponding to the water inlet groove (231).

9. The photovoltaic module with an automatic cleaning system according to claim 1, characterized in that: The invention also comprises a filter assembly (3), the filter assembly (3) being arranged on the inner wall of the water storage tank (21), the filter assembly (3) comprising a T-shaped block (31), an insert block (32), a water return pipe (33), a filter box (34), a filter element (35) and a water outlet (36), the T-shaped block (31) being fixed on the inner wall of the water storage tank (21), the insert block (32) being fixed on the outer wall of the filter box (34), the insert block (32) being detachably inserted outside the T-shaped block (31), the filter element (35) being arranged in the middle of the filter box (34), the water outlet (36) being arranged on the bottom surface of the filter box (34), one end of the water return pipe (33) being arranged at the bottom of a lower end of the photovoltaic assembly mounting frame (4), and the other end of the water return pipe (33) being in communication with the filter box (34).

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