Track-changeable track type photovoltaic panel automatic cleaning device

Abstract

The invention relates to the technical field of photovoltaic panel cleaning devices, and discloses a variable track type photovoltaic panel automatic cleaning device which comprises a supporting frame, a photovoltaic panel body is fixedly installed between the inner walls of the two opposite sides of the supporting frame, and a sweeping mechanism for cleaning the surface of the photovoltaic panel body is installed in the supporting frame. The sweeping mechanism comprises two rollers rotationally installed between the inner walls of the two opposite sides of the supporting frame, the outer surfaces of the two ends of the two rollers are both sleeved with transmission belts, and the outer surfaces of the two transmission belts are both fixedly provided with installation blocks. A cleaning roller and a wiping roller which can be in contact with the surface of the photovoltaic panel body are rotationally mounted between the two mounting blocks, and a driving mechanism for driving the cleaning roller and the wiping roller to move is mounted on the supporting frame. The surface of the photovoltaic panel body is cleaned through the cleaning roller and the wiping roller, and the photoelectric conversion efficiency of the photovoltaic panel body can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic panel cleaning devices, and particularly to a variable-rail track-type automatic photovoltaic panel cleaning device. Background Art

[0002] A variable-rail track-type photovoltaic panel (also known as an adjustable-angle photovoltaic panel) is a technology that can automatically adjust the tilt angle of the photovoltaic panel according to the sun's trajectory. Such a photovoltaic system usually uses adjustable tracks or brackets to enable the photovoltaic panel to adjust its angle according to the sun's position change within a day, thereby maximizing the amount of sunlight received by the photovoltaic panel and improving the power generation efficiency.

[0003] The utilization of solar energy mainly involves the direct or indirect conversion of sunlight absorbed by photovoltaic panels into electrical energy. Since the photovoltaic panels are exposed to the outdoor environment for a long time, a lot of dust and dirt will fall on the surface of the photovoltaic components, and these dust and dirt will affect the photoelectric conversion efficiency of the photovoltaic panels. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a variable-rail track-type automatic photovoltaic panel cleaning device.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A variable-rail track-type automatic photovoltaic panel cleaning device, including a support frame. A photovoltaic panel body is fixedly installed between the inner walls on opposite sides of the support frame. A cleaning mechanism for cleaning the surface of the photovoltaic panel body is installed inside the support frame. The cleaning mechanism includes two rollers rotatably installed between the inner walls on opposite sides of the support frame. Transmission belts are sleeved on the outer surfaces at both ends of the two rollers. Mounting blocks are fixedly installed on the outer surfaces of the two transmission belts. A cleaning roller and a wiping roller that can contact the surface of the photovoltaic panel body are respectively rotatably installed between the two mounting blocks. A driving mechanism for driving the cleaning roller and the wiping roller to move is installed on the support frame, and a cleaning mechanism is also installed on the support frame.

[0006] As a further solution of the present invention, the driving mechanism includes a stepping motor fixedly installed on the outer surface of the support frame. The output end of the stepping motor penetrates the inner wall of the support frame and is fixedly installed with the rotation center of one of the rollers. A transmission component is installed on the top of the support frame.

[0007] As a further solution of the present invention, the transmission component includes two transmission racks fixedly installed between the inner walls on opposite sides at the top of the support frame. Transmission gears are fixedly installed at the rotation centers of the cleaning roller and the wiping roller. The transmission gears are meshed with the transmission racks.

[0008] As a further solution of the present invention, the cleaning mechanism includes two guide rods fixedly installed between the inner walls of the opposite sides of the top of the support frame. A moving frame is slidably installed on the outer surfaces of the two guide rods. A chute is formed through the upper surface of the moving frame. A slider is slidably installed on the inner wall of the chute. The top end of the slider is fixedly installed with a support plate. A plurality of cleaning nozzles are fixedly installed through the top end of the support plate evenly. A communication pipe is fixedly installed between the top ends of the plurality of cleaning nozzles. A swing assembly is installed between the slider and the transmission rack, and a moving assembly is installed between the mounting block and the moving frame.

[0009] As a further solution of the present invention, the swing assembly includes two ejector rods respectively fixedly installed at the two ends of the slider. A plurality of tapered bumps are evenly fixedly installed on the outer surface of the transmission rack close to the slider side. The tapered bumps installed on the sides of the two transmission racks are arranged in a staggered manner.

[0010] As a further solution of the present invention, the moving assembly includes spring rods fixedly installed on the lower surfaces of the two ends of the moving frame. The telescopic end of the spring rod is fixedly installed with a trapezoidal abutting block. A push plate corresponding to the trapezoidal abutting block is fixedly installed on the inner wall of one end of the support frame. The inclined surface of the trapezoidal abutting block faces the push plate side.

[0011] As a further solution of the present invention, a compression spring is sleeved on the outer surface of the guide rod. The compression spring is arranged between the moving frame and the inner wall of the support frame close to the push plate side.

[0012] As a further solution of the present invention, a shielding cloth is fixedly installed between the outer surfaces of the opposite sides of the two transmission belts and the mounting block.

[0013] As a further solution of the present invention, electric telescopic rods are rotatably installed on the outer surfaces of the support frame near its four top corners. A connecting rod is fixedly installed between the two electric telescopic rods on the same side.

[0014] The beneficial effects of the present invention are: 1. The roller is driven to rotate by a stepping motor, so that the roller can drive the transmission belt sleeved on its outer surface to move. The transmission belt can drive the cleaning roller and the wiping roller to move towards the photovoltaic panel body through the mounting block. At the same time, the connecting pipe supplies water to multiple cleaning nozzles through an external water pump, so that the multiple cleaning nozzles can spray cleaning liquid on the surface of the photovoltaic panel body for flushing. After the transmission gear installed at the rotation center of the cleaning roller and the wiping roller meshes with the transmission rack installed on the support frame, the transmission gear will drive the cleaning roller and the wiping roller to rotate, so that the cleaning roller can cooperate with the cleaning liquid sprayed by the cleaning nozzles to brush the surface of the photovoltaic panel body. After the brushing is completed, the rotating wiping roller wipes the water stains on the surface of the photovoltaic panel body to prevent stains from being formed after the water stains evaporate, resulting in incomplete cleaning of the photovoltaic panel body. After cleaning the surface of the photovoltaic panel body, the photoelectric conversion efficiency of the photovoltaic panel body can be effectively improved; 2. While the transmission belt moves, it will drive the shielding cloth installed on its outer surface to move synchronously, so that the shielding cloth shields the surface of the cleaned photovoltaic panel body to prevent external dust and other impurities from falling on the surface of the photovoltaic panel body again at night and causing pollution to it. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic diagram of the overall structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 2 FIG. is a schematic diagram of the transmission belt structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 3 FIG. is a schematic diagram of the shielding cloth structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 4 FIG. is a schematic diagram of the support frame structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 5 FIG. is a schematic diagram of the transmission rack structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 6 FIG. is a schematic diagram of the moving frame structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 7 FIG. is a schematic diagram of the slider structure of a variable-rail track-type automatic cleaning device for photovoltaic panels proposed by the present invention; Figure 8 is Figure 2 an enlarged view of the structure at A in Figure 9 is Figure 6 an enlarged view of the structure at B in

[0016] In the figure: 1. Support frame; 2. Photovoltaic panel body; 3. Roller; 4. Transmission belt; 5. Mounting block; 6. Cleaning roller; 7. Wiping roller; 8. Shading cloth; 9. Guide rod; 10. Moving frame; 11. Chute; 12. Slide block; 13. Connecting pipe; 14. Cleaning spray head; 15. Transmission rack; 16. Transmission gear; 17. Spring rod; 18. Trapezoidal abutting block; 19. Compression spring; 20. Push plate; 21. Conical bump; 22. Thrust rod; 23. Support plate; 24. Stepper motor; 25. Electric telescopic rod. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Next, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0019] Referring to the attached Figure 1 - attached Figure 9 , a variable-rail track-type automatic cleaning device for photovoltaic panels, including a support frame 1. Between the inner walls on opposite sides of the support frame 1, a photovoltaic panel body 2 is fixedly installed. Inside the support frame 1, a cleaning mechanism for cleaning the surface of the photovoltaic panel body 2 is installed. The cleaning mechanism includes two rollers 3 rotatably installed between the inner walls on opposite sides of the support frame 1. Transmission belts 4 are sleeved on the outer surfaces at both ends of the two rollers 3. Mounting blocks 5 are fixedly installed on the outer surfaces of the two transmission belts 4. Between the two mounting blocks 5, a cleaning roller 6 and a wiping roller 7 that can contact the surface of the photovoltaic panel body 2 are respectively rotatably installed. A driving mechanism for driving the cleaning roller 6 and the wiping roller 7 to move is installed on the support frame 1. A cleaning mechanism is also installed on the support frame 1. The driving mechanism includes a stepper motor 24 fixedly installed on the outer surface of the support frame 1. The output end of the stepper motor 24 penetrates the inner wall of the support frame 1 and is fixedly installed with the rotation center of one of the rollers 3. A transmission assembly is installed on the top of the support frame 1. The transmission assembly includes two transmission racks 15 fixedly installed between the inner walls on opposite sides of the top of the support frame 1. Transmission gears 16 are fixedly installed at the rotation centers of the cleaning roller 6 and the wiping roller 7. The transmission gears 16 are meshed with the transmission racks 15.

[0020] During use, the roller 3 is driven to rotate by the stepper motor 24, so that the roller 3 can drive the transmission belt 4 sleeved on its outer surface to move, enabling the transmission belt 4 to drive the cleaning roller 6 and the wiping roller 7 to move towards the photovoltaic panel body 2 through the mounting block 5. At the same time, the connecting pipe 13 supplies water to the plurality of cleaning nozzles 14 through an external water pump, enabling the plurality of cleaning nozzles 14 to spray cleaning liquid onto the surface of the photovoltaic panel body 2 for flushing. After the transmission gear 16 installed at the rotation center of the cleaning roller 6 and the wiping roller 7 meshes with the transmission rack 15 installed on the support frame 1, the transmission gear 16 will drive the cleaning roller 6 and the wiping roller 7 to rotate, enabling the cleaning roller 6 to cooperate with the cleaning liquid sprayed by the cleaning nozzles 14 to brush the surface of the photovoltaic panel body 2. After the brushing is completed, the rotating wiping roller 7 wipes the water stains on the surface of the photovoltaic panel body 2 to prevent stains from being formed after the water stains evaporate, resulting in incomplete cleaning of the photovoltaic panel body 2.

[0021] In this embodiment, the cleaning mechanism includes two guide rods 9 fixedly installed between the inner walls of the opposite sides at the top of the support frame 1. A moving frame 10 is slidably installed on the outer surfaces of the two guide rods 9. A chute 11 is formed through the upper surface of the moving frame 10. A slider 12 is slidably installed on the inner wall of the chute 11. The top end of the slider 12 is fixedly installed with a support plate 23. A plurality of cleaning nozzles 14 are uniformly fixedly installed through the top end of the support plate 23. A connecting pipe 13 is fixedly installed between the top ends of the plurality of cleaning nozzles 14. A swing assembly is installed between the slider 12 and the transmission rack 15, and a moving assembly is installed between the mounting block 5 and the moving frame 10. The moving assembly includes spring rods 17 fixedly installed on the lower surfaces of both ends of the moving frame 10. The telescopic ends of the spring rods 17 are fixedly installed with trapezoidal abutting blocks 18. A push plate 20 corresponding to the trapezoidal abutting blocks 18 is fixedly installed on the inner wall of one end of the support frame 1. The inclined surface of the trapezoidal abutting block 18 faces the side of the push plate 20.

[0022] When the transmission belt 4 drives the mounting block 5 to move to the position of the moving frame 10, the side of the mounting block 5 will contact the trapezoidal abutting block 18, enabling the mounting block 5 to push the moving frame 10 to move through the trapezoidal abutting block 18 and the spring rod 17, so that the cleaning nozzles 14 installed on the moving frame 10 move synchronously to clean the surface of the photovoltaic panel body 2 as a whole.

[0023] In this embodiment, the swing assembly includes two ejector rods 22 respectively fixedly installed at both ends of the slider 12. A plurality of conical protrusions 21 are uniformly fixedly installed on the outer surface of the transmission rack 15 close to the slider 12. The conical protrusions 21 installed on the sides of the two transmission racks 15 are arranged alternately. A compression spring 19 is sleeved on the outer surface of the guide rod 9. The compression spring 19 is arranged between the moving frame 10 and the inner wall of the support frame 1 close to the push plate 20.

[0024] While the moving frame 10 drives the cleaning nozzle 14 to move through the slider 12, the ejector rods 22 installed at both ends of the slider 12 will respectively abut against the conical bumps 21 installed on the side of the transmission rack 15. Since the conical bumps 21 arranged on both sides are staggered with each other, the conical bumps 21 cooperate with the ejector rods 22 to be able to push the whole slider 12 back and forth, so that the cleaning nozzle 14 installed on the slider 12 can move back and forth horizontally while moving longitudinally, so as to enable the cleaning nozzle 14 to clean the surface of the photovoltaic panel body 2 more comprehensively.

[0025] In this embodiment, a shielding cloth 8 is fixedly installed between the outer surfaces of the two transmission belts 4 and the opposite side of the mounting block 5.

[0026] While the transmission belt 4 moves, it will drive the shielding cloth 8 installed on its outer surface to move synchronously, so that the shielding cloth 8 shields the surface of the cleaned photovoltaic panel body 2 to prevent external dust and other impurities from falling on the surface of the photovoltaic panel body 2 again at night and causing pollution to it.

[0027] In this embodiment, electric telescopic rods 25 are rotatably installed on the outer surfaces of the support frame 1 near its four top corners, and a connecting rod is fixedly installed between the two electric telescopic rods 25 on the same side. The bottoms of the two electric telescopic rods 25 in one group are rotatably installed with the ground.

[0028] During use, the position of the sun is sensed in real time through an externally connected light sensor, and the controller is used to control the expansion and contraction of the telescopic ends of the electric telescopic rods 25, so that the support frame 1 drives the photovoltaic panel body 2 to deflect, and the tilt angle of the photovoltaic panel body 2 can be automatically adjusted, and the position of the sun can be tracked more accurately, increasing the receiving area of the photovoltaic panel.

[0029] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: during use, the position of the sun is sensed in real time through an externally connected light sensor, and the controller is used to control the expansion and contraction of the telescopic ends of the electric telescopic rods 25, so that the support frame 1 drives the photovoltaic panel body 2 to deflect, and the tilt angle of the photovoltaic panel body 2 can be automatically adjusted, and the position of the sun can be tracked more accurately, increasing the receiving area of the photovoltaic panel; At night, the stepping motor 24 is started, causing the stepping motor 24 to drive the roller 3 to rotate, enabling the roller 3 to drive the transmission belt 4 sleeved on its outer surface to move, enabling the transmission belt 4 to drive the cleaning roller 6 and the wiping roller 7 through the mounting block 5 to move towards the photovoltaic panel body 2. At the same time, the connecting pipe 13 supplies water to the plurality of cleaning nozzles 14 through an external water pump, enabling the plurality of cleaning nozzles 14 to spray cleaning liquid onto the surface of the photovoltaic panel body 2 for flushing; after the transmission gear 16 installed at the rotation center of the cleaning roller 6 and the wiping roller 7 meshes with the transmission rack 15 installed on the support frame 1, the transmission gear 16 will drive the cleaning roller 6 and the wiping roller 7 to rotate, enabling the cleaning roller 6 to cooperate with the cleaning liquid sprayed by the cleaning nozzles 14 to brush the surface of the photovoltaic panel body 2. After the brushing is completed, the rotating wiping roller 7 wipes the water stains on the surface of the photovoltaic panel body 2 to prevent stains from being formed after the water stains evaporate, resulting in incomplete cleaning of the photovoltaic panel body 2; While the transmission belt 4 is moving, it will drive the shielding cloth 8 installed on its outer surface to move synchronously, enabling the shielding cloth 8 to shield the surface of the cleaned photovoltaic panel body 2 to prevent external dust and other impurities from falling onto the surface of the photovoltaic panel body 2 again at night and causing pollution to it; When the transmission belt 4 drives the mounting block 5 to move to the moving frame 10, the side of the mounting block 5 will contact the trapezoidal abutting block 18, enabling the mounting block 5 to push the moving frame 10 to move through the trapezoidal abutting block 18 and the spring rod 17, enabling the cleaning nozzles 14 installed on the moving frame 10 to move synchronously to clean the surface of the photovoltaic panel body 2 as a whole; when the trapezoidal abutting block 18 moves to the push plate 20, the end of the push plate 20 will abut against the inclined surface of the trapezoidal abutting block 18. As the trapezoidal abutting block 18 continues to move, the push plate 20 will push the trapezoidal abutting block 18 upward, separating the trapezoidal abutting block 18 from the mounting block 5, causing the moving frame 10 to stop moving. At the same time, the unrestricted moving frame 10 will be reset under the elastic force of the compression spring 19 for the next cleaning operation of the cleaning nozzles 14; While the moving frame 10 drives the cleaning nozzles 14 to move through the slider 12, the ejector rods 22 installed at both ends of the slider 12 will respectively abut against the tapered protrusions 21 installed on the side of the transmission rack 15. Since the tapered protrusions 21 provided on both sides are arranged in a staggered manner, the tapered protrusions 21 cooperate with the ejector rods 22 to be able to push the entire slider 12 back and forth, enabling the cleaning nozzles 14 installed on the slider 12 to move back and forth horizontally while moving longitudinally, so that the cleaning nozzles 14 can clean the surface of the photovoltaic panel body 2 more comprehensively; After dawn, the stepping motor 24 drives the roller 3 to rotate, causing the roller 3 to drive the transmission belt 4 sleeved on its outer surface to move, enabling the shielding cloth 8 to move to the initial position and no longer shield the surface of the photovoltaic panel body 2, so that the photovoltaic panel body 2 can receive light. The specific connection methods and working principles of the plurality of electrical components are well-known techniques in the art and will not be elaborated here.

[0030] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A variable track track photovoltaic panel automatic cleaning device, comprising a support frame (1), a photovoltaic panel body (2) being fixedly mounted between inner walls on opposite sides of the support frame (1), characterized in that: A cleaning mechanism for cleaning the surface of the photovoltaic panel body (2) is installed inside the support frame (1), and the cleaning mechanism comprises two rollers (3) rotatably installed between inner walls on opposite sides of the support frame (1), the outer surfaces of both ends of the two rollers (3) are sleeved with transmission belts (4), the outer surfaces of the two transmission belts (4) are fixedly installed with mounting blocks (5), and a cleaning roller (6) and a wiping roller (7) that can contact the surface of the photovoltaic panel body (2) are rotatably installed between the two mounting blocks (5), and a driving mechanism for driving the cleaning roller (6) and the wiping roller (7) to move is installed on the support frame (1), and a cleaning mechanism is also installed on the support frame (1).

2. The variable track track photovoltaic panel automatic cleaning device according to claim 1, characterized in that: The driving mechanism comprises a stepper motor (24) fixedly mounted on the outer surface of the support frame (1), the output end of the stepper motor (24) passing through the inner wall of the support frame (1) and fixedly mounted to the rotation center of one of the rollers (3), and a transmission assembly is mounted on the top of the support frame (1).

3. The variable track track photovoltaic panel automatic cleaning device according to claim 2, characterized in that: The transmission assembly comprises two transmission racks (15) fixedly mounted between inner walls on two opposite sides of the top of the support frame (1), and transmission gears (16) are fixedly mounted at the rotation centers of the cleaning roller (6) and the wiping roller (7), and the transmission gears (16) are meshed with the transmission racks (15).

4. The variable track track photovoltaic panel automatic cleaning device according to claim 3, characterized in that: The cleaning mechanism comprises two guide rods (9) fixedly mounted between inner walls on two opposite sides of the top of the support frame (1); a movable frame (10) is slidably mounted on the outer surfaces of the two guide rods (9); a slide groove (11) is penetrated through the upper surface of the movable frame (10); a slider (12) is slidably mounted on the inner wall of the slide groove (11); a support plate (23) is fixedly mounted on the top of the slider (12); a plurality of cleaning nozzles (14) are evenly penetrated and fixedly mounted on the top of the support plate (23); a connecting pipe (13) is fixedly mounted between the tops of the plurality of cleaning nozzles (14); a swinging assembly is mounted between the slider (12) and the transmission rack (15); and a moving assembly is mounted between the mounting block (5) and the movable frame (10).

5. The variable track track photovoltaic panel automatic cleaning device according to claim 4, characterized in that: The swing assembly comprises two push rods (22) respectively fixedly mounted on the ends of the slider (12); a plurality of conical protrusions (21) are evenly fixedly mounted on the outer surface of the transmission rack (15) on the side close to the slider (12); the conical protrusions (21) mounted on the sides of the two transmission racks (15) are arranged in an alternating manner.

6. The variable track track photovoltaic panel automatic cleaning device according to claim 5, characterized in that: The moving assembly comprises a spring rod (17) fixedly mounted on the lower surface of both ends of the moving frame (10), a trapezoidal stop block (18) fixedly mounted on the telescopic end of the spring rod (17), a push plate (20) corresponding to the trapezoidal stop block (18) fixedly mounted on the inner wall of one end of the support frame (1), and the inclined surface of the trapezoidal stop block (18) is arranged toward one side of the push plate (20).

7. The variable track track photovoltaic panel automatic cleaning device according to claim 6, characterized in that: The outer surface of the guide rod (9) is sleeved with a compression spring (19), and the compression spring (19) is arranged between the moving frame (10) and the inner wall of the support frame (1) on a side close to the push plate (20).

8. The variable track track photovoltaic panel automatic cleaning device according to claim 1, characterized in that: A shielding cloth (8) is fixedly mounted between the outer surface of the two transmission belts (4) and the mounting block (5) on the opposite side.

9. The variable track track photovoltaic panel automatic cleaning device according to claim 1, characterized in that: Electric telescopic rods (25) are rotatably mounted on the outer surfaces of the support frame (1) near the four top corners thereof, and a connecting rod is fixedly mounted between two electric telescopic rods (25) on the same side.

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