A photovoltaic module cleaning device

Abstract

The utility model relates to photovoltaic power generation technical field, concretely relates to a kind of photovoltaic module cleaning device, including installation frame and the photovoltaic board being installed in installation frame, transmission assembly and under the cleaning assembly and spray assembly of transmission assembly are provided on installation frame, cleaning assembly includes fixedly arranged guide rail on installation frame and the cross bar of slidingly arranged on guide rail, several rotating rods are rotatably arranged on cross bar, rotating rod bottom is provided with cleaning brush, spray assembly includes the spray head of screw connection in rotating rod bottom, transmission assembly drives the process of cross bar movement to drive rotating rod rotation through cleaning brush to photovoltaic panel surface and brush at the same time through spray head to photovoltaic panel surface and water, solve the problem that the prior art exists and energy cost consumption is big to easily remain stain.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, and specifically to a photovoltaic module cleaning device. Background Technology

[0002] During long-term outdoor operation, photovoltaic modules accumulate pollutants such as dust, bird droppings, and leaves on their surfaces, severely impacting power generation efficiency. Traditional manual cleaning methods are inefficient and costly, suffering from incomplete cleaning, easy residue buildup, and high labor costs.

[0003] A Chinese utility model patent with application number CN202120859222.4 discloses a photovoltaic module cleaning device. The photovoltaic module includes a photovoltaic panel mounting frame and a photovoltaic panel. The photovoltaic module cleaning device includes a cleaning component, a cleaning liquid spraying component, a limiting component, and a control circuit. The cleaning component includes a brush bar and a DC motor. The brush bar is attached to the surface of the photovoltaic panel, and the DC motor is connected to the brush bar for transmission. The cleaning liquid spraying component includes a cleaning liquid nozzle and a cleaning liquid delivery pipe. The cleaning liquid nozzle is installed on the photovoltaic panel mounting frame and connected to the cleaning liquid delivery pipe. The limiting component includes two limit switches, which are installed on the photovoltaic panel mounting frame at swing limiting positions corresponding to the brush bar. The DC motor drives the brush bar to swing under the cooperation of the limiting component and the control circuit.

[0004] Although it uses three sets of cleaning components in conjunction with a cleaning liquid component to clean the surface of the photovoltaic panel, first by swaying the brush bar of the third cleaning component, and then by the brush bar of the first and second cleaning components, stains are easily left on the brush bar of the third component, and it consumes a lot of power and water resources. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a photovoltaic module cleaning device, including a mounting frame and photovoltaic panels installed within the mounting frame. The mounting frame is equipped with a transmission component, a cleaning component, and a spraying component driven by the transmission component. The cleaning component includes a guide rail fixedly mounted on the mounting frame and a crossbar slidably mounted on the guide rail. Several rotating rods are rotatably mounted on the crossbar, and a cleaning brush is located at the bottom of each rotating rod. The spraying component includes a spray head threadedly connected to the bottom of the rotating rod. This invention solves the problems of easy residue buildup and high energy consumption in existing technologies.

[0006] The technical solution of this utility model is as follows: A photovoltaic module cleaning device includes a mounting frame and a photovoltaic panel installed within the mounting frame. The mounting frame is equipped with a transmission component, a cleaning component, and a spraying component driven by the transmission component. The cleaning component includes a guide rail fixedly mounted on the mounting frame and a crossbar slidably mounted on the guide rail. Several rotating rods are rotatably mounted on the crossbar, and a cleaning brush is located at the bottom of each rotating rod. The spraying component includes a spray head threadedly connected to the bottom of the rotating rod. During the movement of the crossbar by the transmission component, the rotating rods rotate, simultaneously cleaning the surface of the photovoltaic panel with the cleaning brushes and spraying water onto the surface of the photovoltaic panel with the spray heads.

[0007] As a preferred embodiment, the transmission assembly includes a servo motor fixedly mounted on the right side of the mounting frame and a lead screw fixedly connected to the front end of the servo motor. A rotating seat is fixedly mounted at the tail end of the lead screw, a fixed rod is fixedly mounted on one side of the lead screw, and a rack is fixedly connected to the top of the fixed rod.

[0008] As a preferred embodiment, sliders matching the guide rail are fixedly connected to the bottom of both sides of the crossbar, a screw nut matching the lead screw is fixedly connected to one side of the slider, a mounting plate is fixedly connected to the right side of the crossbar, a gear meshing with a rack is rotatably mounted on the mounting plate, a pulley is fixedly connected to the top of the gear, a driven wheel is fixedly connected to the top of the rotating rod, and a belt connected to the driven wheel is mounted on the pulley.

[0009] As a preferred embodiment, the spray assembly further includes a water storage tank fixedly disposed on the left side of the mounting frame and a connecting rod fixedly connected to the left side of the crossbar, wherein a piston slidably disposed in the water storage tank is fixedly connected to the bottom of the connecting rod.

[0010] As a preferred embodiment, the piston has a circular hole a at its front end, a spray pipe is fixedly connected to the top of the piston and communicates with it, and a water outlet pipe is fixedly connected to the bottom of the spray pipe and communicates with the rotating rod and the driven wheel.

[0011] As another preferred embodiment, the water storage tank has a circular hole b at its front end, a one-way valve is fixedly installed at the front end of the water storage tank, a rectangular groove is opened at the top of the water storage tank, and a flexible baffle is fixedly installed at the top of the water storage tank.

[0012] The present invention has the following beneficial effects.

[0013] 1. This utility model is equipped with a cleaning component. The servo motor in the transmission component drives the lead screw to rotate, which in turn drives the crossbar to move up and down along the guide rail. During the movement of the crossbar, the gear rotates under the action of the rack, which in turn drives several rotating rods to rotate via the belt. The cleaning brush at the bottom of the rotating rod cleans the surface of the photovoltaic panel. The crossbar and the cleaning brush are driven by a single power source, which not only greatly saves power and energy costs, but also has good synchronization. The crossbar moves up to the position and then moves down to reset. The cleaning brush can clean the stains on the surface of the photovoltaic panel to the greatest extent. Moreover, the cleaning brush rotates continuously, which has a greater cleaning force and can more effectively remove stains and avoid residue.

[0014] 2. A spray head is threadedly connected to the bottom of the rotating rod. When the horizontal bar moves upward, the spray head sprays water onto the surface of the photovoltaic panel, causing the dust and dirt on the surface of the photovoltaic panel to be moistened, softened and washed away. Combined with the cleaning brush, the dust and dirt can be removed more easily, effectively improving the cleaning effect. In addition, the spray head rotates synchronously with the cleaning brush, which can increase the water spraying area.

[0015] 3. This utility model is equipped with a spray assembly. The water storage tank in the spray assembly can collect rainwater. When the crossbar moves upward, it drives the piston, which is fixedly connected to the left side of the crossbar and slidably set in the water storage tank, to squeeze the water in the water storage tank. The squeezed water enters the spray pipe at the top of the piston and is sprayed onto the surface of the photovoltaic panel through the spray head. The spray head does not require additional power and can work simultaneously with the cleaning brush. This not only effectively saves power and energy costs, but also improves cleaning efficiency due to good synchronization. Furthermore, by collecting rainwater for spraying, water consumption can be reduced, which is not only green and environmentally friendly, but also reduces water resource costs.

[0016] In summary, this utility model has the advantages of more efficient cleaning, effective energy cost saving, good synchronization, good linkage effect, and simple and ingenious structure, making it suitable for the field of photovoltaic power generation technology. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the photovoltaic module cleaning device; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 A partial structural diagram of the cleanup component; Figure 4 This is a schematic diagram of the cross-sectional structure of the water storage tank; Figure 5 This is a schematic diagram showing the state of water entering the round hole, spray pipe, and outlet pipe sequentially as the piston squeezes the water in the water storage tank, and then being sprayed out through the spray head.

[0018] In the diagram: 1. Mounting frame; 2. Photovoltaic panel; 3. Transmission assembly; 4. Cleaning assembly; 5. Spray assembly; 6. Servo motor; 7. Lead screw; 8. Rotating seat; 9. Fixed rod; 10. Rack; 11. Guide rail; 12. Crossbar; 13. Rotating rod; 14. Cleaning brush; 15. Slider; 16. Lead screw nut; 17. Mounting plate; 18. Gear; 19. Pulley; 20. Driven wheel; 10. Belt; 11. Spray head; 12. Water tank; 13. Connecting rod; 14. Piston; 15. Round hole a; 16. Spray pipe; 17. Water outlet pipe; 18. Round hole b; 19. One-way valve; 20. Rectangular groove; 21. Flexible baffle; 22. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] Example 1

[0021] like Figures 1 to 5 As shown, a photovoltaic module cleaning device includes a mounting frame 1 and a photovoltaic panel 2 installed in the mounting frame 1. The mounting frame 1 is provided with a transmission component 3, a cleaning component 4 driven by the transmission component 3, and a spraying component 5. The cleaning component 4 includes a guide rail 41 fixedly installed on the mounting frame 1 and a crossbar 42 slidably installed on the guide rail 41. Several rotating rods 43 are rotatably installed on the crossbar 42. A cleaning brush 44 is provided at the bottom of the rotating rod 43. The spraying component 5 includes a spray head 51 threadedly connected to the bottom of the rotating rod 43. During the process of the transmission component 3 driving the crossbar 42 to move, the rotating rods 43 are rotated and the surface of the photovoltaic panel 2 is cleaned by the cleaning brush 44 and water is sprayed on the surface of the photovoltaic panel 2 by the spray head 51. The rotating rod 43 and the driven wheel 410 are hollow, and the rotating rod 43 has a thread at the bottom corresponding to the spray head 51, so that the spray head 51 can be threaded to the bottom of the rotating rod 43. The water outlet pipe 57 at the bottom of the spray pipe 56 in the spray assembly 5 can pass through the driven wheel 410 and be inserted into the top of the rotating rod 43 for water flow. The cleaning brush 44 can be a bristle brush or a rubber strip brush. When the horizontal bar 42 moves upward, the spray head 51 sprays water on the surface of the photovoltaic panel 2, and the cleaning brush 44 cleans the surface of the photovoltaic panel 2. When the horizontal bar 42 moves downward, the spray head 51 stops spraying water, and the cleaning brush 44 cleans the surface of the photovoltaic panel 2 from top to bottom to remove residual dust and dirt. This solves the problems of easy residue and high energy consumption in the existing technology.

[0022] like Figure 1 and Figure 2As shown, the transmission assembly 3 includes a servo motor 31 fixedly mounted on the right side of the mounting frame 1 and a lead screw 32 fixedly connected to the front end of the servo motor 31. A rotating seat 33 is fixedly mounted at the tail end of the lead screw 32, and a fixed rod 34 is fixedly mounted on one side of the lead screw 32. A rack 35 is fixedly connected to the top of the fixed rod 34. The tail end of the lead screw 32 is rotatably mounted in the rotating seat 33. The servo motor 31 drives the lead screw 32 to rotate, which in turn drives the crossbar 42 to move up and down along the guide rail 41. During the movement of the crossbar 42, the gear 48 rotates under the action of the rack 35, which in turn drives several rotating rods 43 to rotate via the belt 411. The cleaning brush 44 at the bottom of the rotating rod 43 cleans the surface of the photovoltaic panel 2. The crossbar 42 and the cleaning brush 44 are driven by a single power source, which not only greatly saves power and energy costs, but also has good synchronization.

[0023] like Figure 2 , Figure 3 and Figure 5 As shown, sliders 45 that match the guide rail 41 are fixedly connected to the bottom of both sides of the crossbar 42. A screw nut 46 that matches the screw 32 is fixedly connected to one side of the slider 45. A mounting plate 47 is fixedly connected to the right side of the crossbar 42. A gear 48 that meshes with the rack 35 is rotatably mounted on the mounting plate 47. A pulley 49 is fixedly connected to the top of the gear 48. A driven wheel 410 is fixedly connected to the top of the rotating rod 43. A belt 411 that connects to the driven wheel 410 is mounted on the pulley 49. The slider 45 is engaged with the guide rail 41 to install the crossbar 42 and drive the crossbar 42 to move along the guide rail 41. When the lead screw 32 rotates, it drives the crossbar 42 to move up and down through the matching lead screw nut 46. The pulley 49 is connected to the driven wheel 410 through the belt 411. When the crossbar 42 moves, the gear 48 rotates under the action of the rack 35, which causes the pulley 49 to drive the belt 411 to rotate. In turn, the pulley 49 drives the driven wheel 410 to rotate through the belt 411, which causes the rotating rod 43 fixedly connected to the bottom of the driven wheel 410 to rotate. This causes the cleaning brush 44 set at the bottom of the rotating rod 43 and the spray head 51 threadedly connected to the bottom of the rotating rod 43 to rotate synchronously.

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the spray assembly 5 also includes a water storage tank 52 fixedly disposed on the left side of the mounting frame 1 and a connecting rod 53 fixedly connected to the left side of the crossbar 42. A piston 54 is fixedly connected to the bottom of the connecting rod 53 and slidably disposed within the water storage tank 52. The water storage tank 52 can collect rainwater. When the crossbar 42 moves upward, it drives the piston 54 fixedly connected to the left side of the crossbar 42 and slidably disposed within the water storage tank 52 to squeeze the water in the water storage tank 52. The squeezed water enters the spray pipe 56 at the top of the piston 54 and is sprayed onto the surface of the photovoltaic panel 2 through the spray head 51. The spray head 51 does not require additional power and can work simultaneously with the cleaning brush 44, which not only effectively saves power and energy costs, but also improves cleaning efficiency due to good synchronization. Furthermore, by collecting rainwater for spraying, water consumption can be reduced, which is not only environmentally friendly but also reduces water resource costs.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the piston 54 has a round hole a55 at its front end, and a spray pipe 56 is fixedly connected to the top of the piston 54. A water outlet pipe 57 is fixedly connected to the bottom of the spray pipe 56 and is connected to the rotating rod 43 and the driven wheel 410. When piston 54 squeezes the water inside water tank 52, the water enters piston 54 through round hole a55 at the front end of piston 54 and then enters spray pipe 56 connected to the top of piston 54. Then the water enters water outlet pipe 57 at the bottom of spray pipe 56 and is sprayed onto the surface of photovoltaic panel 2 through spray head 51. The diameter of water outlet pipe 57 is smaller than that of spray pipe 56, which increases the water flow rate into water outlet pipe 57. When sprayed out from spray head 51, it can more powerfully wash away dust and dirt and increase the spraying area. Water outlet pipe 57 passes through driven wheel 410 and is inserted into the top of rotating rod 43. Therefore, spray pipe 56 and water outlet pipe 57 will not rotate with rotating rod 43, avoiding interference between spray pipe 56 and water outlet pipe 57 and the rotation of rotating rod 43.

[0026] like Figure 1 and Figure 4As shown, a circular hole b58 is provided at the front end of the water storage tank 52, a one-way valve 59 is fixedly installed at the front end of the water storage tank 52, a rectangular groove 510 is provided at the top of the water storage tank 52, and a flexible baffle 511 is fixedly installed at the top of the water storage tank 52. Rainwater can enter the water storage tank 52 through the circular hole b58 for collection; rainwater can enter the water storage tank 52 through the one-way valve 59, but water will not leak out of the circular hole b58 when the piston 54 squeezes the water in the water storage tank 52; the rectangular groove 510 at the top of the water storage tank 52 prevents interference between the connecting rod 53 and the spray pipe 56 when they move, and the width of the rectangular groove 510 is slightly larger than the dimensions of the connecting rod 53 and the spray pipe 56; the shape and dimensions of the cavity inside the water storage tank 52 match the piston 54; the flexible baffle 511... Flexible baffles 511 are set on both sides of the bottom of the rectangular groove 510, with a gap between the two flexible baffles 511. The flexible baffles 511 prevent water leakage to the greatest extent when the piston 54 squeezes the water in the water storage tank 52. The flexible baffles 511 can be made of rubber or silicone. When the connecting rod 53 and the spray pipe 56 pass by, the flexible baffles 511 will flip up to allow the connecting rod 53 and the spray pipe 56 to pass smoothly. After the connecting rod 53 and the spray pipe 56 pass by, the flexible baffles 511 can close down and reset.

[0027] The work process is as follows.

[0028] In use, the servo motor 31 first drives the lead screw 32 to rotate forward, and the lead screw 32 drives the crossbar 42 to move upward along the guide rail 41. During the movement of the crossbar 42, the gear 48 rotates under the action of the rack 35, and then drives several rotating rods 43 to rotate through the belt 411. The cleaning brush 44 at the bottom of the rotating rod 43 cleans the surface of the photovoltaic panel 2. At the same time, when the crossbar 42 moves upward, it drives the piston 54, which is fixedly connected to the left side of the crossbar 42 and slidably set in the water storage tank 52, to squeeze the water in the water storage tank 52. The squeezed water enters the spray pipe 56 at the top of the piston 54 and is sprayed onto the surface of the photovoltaic panel 2 through the spray head 51. When the crossbar 42 moves upward into place, the servo motor 31 drives the lead screw 32 to reverse, causing the crossbar 42 to move downward along the guide rail 41 to reset. During the downward movement and reset of the crossbar 42, the spray head 51 stops spraying water, and the cleaning brush 44 cleans the surface of the photovoltaic panel 2 from top to bottom to remove the remaining dust and dirt.

[0029] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0031] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A photovoltaic module cleaning device, comprising a mounting frame (1) and a photovoltaic panel (2) mounted within the mounting frame (1), characterized in that: The mounting frame (1) is provided with a transmission component (3) and a cleaning component (4) and a spraying component (5) driven by the transmission component (3). The cleaning component (4) includes a guide rail (41) fixedly mounted on the mounting frame (1) and a crossbar (42) slidably mounted on the guide rail (41). Several rotating rods (43) are rotatably mounted on the crossbar (42). A cleaning brush (44) is provided at the bottom of the rotating rod (43). The spraying component (5) includes a spray head (51) threadedly connected to the bottom of the rotating rod (43). During the process of the transmission component (3) driving the crossbar (42) to move, the rotating rod (43) is driven to rotate and clean the surface of the photovoltaic panel (2) through the cleaning brush (44) while spraying water on the surface of the photovoltaic panel (2) through the spray head (51).

2. The photovoltaic module cleaning device according to claim 1, characterized in that: The transmission assembly (3) includes a servo motor (31) fixedly mounted on the right side of the mounting frame (1) and a lead screw (32) fixedly connected to the front end of the servo motor (31). A rotating seat (33) is fixedly mounted at the tail end of the lead screw (32). A fixing rod (34) is fixedly mounted on one side of the lead screw (32). A rack (35) is fixedly connected to the top of the fixing rod (34).

3. The photovoltaic module cleaning device according to claim 2, characterized in that: The bottom of both sides of the crossbar (42) is fixedly connected to sliders (45) that match the guide rail (41). A screw nut (46) that matches the screw rod (32) is fixedly connected to one side of the slider (45). A mounting plate (47) is fixedly connected to the right side of the crossbar (42). A gear (48) that meshes with the rack (35) is rotatably mounted on the mounting plate (47). A pulley (49) is fixedly connected to the top of the gear (48). A driven wheel (410) is fixedly connected to the top of the rotating rod (43). A belt (411) that connects to the driven wheel (410) is mounted on the pulley (49).

4. A photovoltaic module cleaning device according to claim 3, characterized in that: The spray assembly (5) also includes a water storage tank (52) fixedly disposed on the left side of the mounting frame (1) and a connecting rod (53) fixedly connected to the left side of the crossbar (42). The bottom of the connecting rod (53) is fixedly connected to a piston (54) that is slidably disposed in the water storage tank (52).

5. A photovoltaic module cleaning device according to claim 4, characterized in that: The piston (54) has a round hole a (55) at the front end. A spray pipe (56) is fixedly connected to the top of the piston (54) and communicates with it. A water outlet pipe (57) is fixedly connected to the bottom of the spray pipe (56) and communicates with the rotating rod (43) and the driven wheel (410).

6. A photovoltaic module cleaning device according to claim 5, characterized in that: The water storage tank (52) has a round hole b (58) at the front end, a one-way valve (59) is fixedly installed at the front end of the water storage tank (52), a rectangular groove (510) is opened at the top of the water storage tank (52), and a flexible baffle (511) is fixedly installed at the top of the water storage tank (52).

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