Photovoltaic panel cleaning device and photovoltaic panel assembly
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN BAICHUAN INTELLIGENT MACHINE
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-02
Smart Images
Figure CN224319314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic panel cleaning technology, specifically to a photovoltaic panel cleaning device and a photovoltaic panel assembly. Background Technology
[0002] Photovoltaic (PV) panels are power generation devices that produce direct current (DC) electricity when exposed to sunlight. Because they operate outdoors for extended periods, their surfaces accumulate significant amounts of dust and impurities. The presence of dust and impurities severely hinders the absorption of solar energy by the PV panels, leading to reduced power generation efficiency. Therefore, it is necessary to clean the PV panels to ensure surface cleanliness and thus maintain their power generation efficiency.
[0003] There are two existing cleaning methods: manual cleaning and semi-automatic or automated cleaning using cleaning machines. Manual cleaning with tools involves a significant amount of labor. Existing cleaning machines also consume a considerable amount of electricity to clean photovoltaic panels. Therefore, both manual and machine cleaning methods employ periodic cleaning, meaning the photovoltaic panels are cleaned at regular intervals. This ensures that the cleaning cost is less than the increased power generation revenue from cleaning the panels. However, during these intervals, dust and impurities gradually accumulate on the surface of the photovoltaic panels. The longer the time interval, the more difficult it is to remove the accumulated dust and impurities, and the power generation efficiency of the photovoltaic panels gradually decreases, making it impossible to guarantee that the power generation efficiency will remain consistently high. Since photovoltaic panels have a limited lifespan, to fully utilize their power generation function within their lifespan, it is necessary to ensure that the photovoltaic panels maintain a consistently high power generation efficiency and avoid periods of low efficiency.
[0004] For example, patents with authorization announcement number CN 222423614 U and utility model name "A Solar Photovoltaic Panel Cleaning Device," and patents with authorization announcement number CN 222519238 U and utility model name "Photovoltaic Panel Cleaning Robot and Photovoltaic Power Generation Device," both require significant energy consumption and have high energy efficiency when cleaning photovoltaic panels. Firstly, a generator with high power output is needed to drive the process; secondly, cleaning the photovoltaic panels consumes a considerable amount of energy. Therefore, regular cleaning is often used.
[0005] Therefore, those skilled in the art urgently need to develop a photovoltaic panel cleaning device that can clean photovoltaic panels at short intervals, thereby ensuring that the photovoltaic panels always maintain high power generation efficiency. Utility Model Content
[0006] The purpose of this invention is to provide a photovoltaic panel cleaning device and photovoltaic panel assembly that consumes less electrical energy and has lower power consumption efficiency when cleaning photovoltaic panels. It can clean the photovoltaic panels at shorter intervals, thereby maintaining a high level of cleanliness on the photovoltaic panel surface and ensuring that the photovoltaic panels are always in a state of high power generation efficiency.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A photovoltaic panel cleaning device includes a movable device that can move along the extension direction of the high-end side of the photovoltaic panel. The movable device is provided with a suspension mechanism, and a reciprocating connecting belt is suspended on the suspension mechanism. A cleaning device is connected to each end of the connecting belt, and the two cleaning devices are balanced by their own weight. Each cleaning device is provided with a rotatable cleaning part, which rotates to clean the photovoltaic panel and drives the two cleaning devices to move in opposite directions.
[0009] Optionally, the cleaning device includes a first body, on which a first motor is mounted;
[0010] The cleaning unit includes a roller brush rotatably disposed at the bottom of the first machine body. The roller brush is driven to the first motor. When the roller brush rotates, it drives the cleaning device to move and clean the photovoltaic panel. Alternatively, the cleaning unit includes a disc brush rotatably disposed at the bottom of the first machine body. The disc brush is driven to the first motor. When the disc brush rotates, it drives the cleaning device to move and clean the photovoltaic panel.
[0011] Optionally, at least one of the cleaning devices is further provided with a first winding roller and a first winding motor, the end of the connecting belt is connected to the first winding roller, the first winding roller is drivenly connected to the first winding motor, and the high-end side of the photovoltaic panel is further provided with a docking compartment for the mobile device and the cleaning device to dock.
[0012] Optionally, the number of roller brushes is set to two.
[0013] Optionally, the driving mechanism of the cleaning device is a first motor, the driving mechanism of the moving device is a second motor, and the power supply devices for the first motor and the second motor are both photovoltaic panels.
[0014] Optionally, the mobile device includes a second body, on which a walking wheel is provided that moves along the high-end side of the photovoltaic panel. The suspension mechanism includes a rotating wheel rotatably mounted on the second body. The rotating wheel and the shaft of the walking wheel are connected by a first transmission mechanism, which includes at least two transmission modes: co-directional transmission and reverse transmission. The connecting belt is wound around the rotating wheel and moves synchronously with it. When the two cleaning devices move in opposite directions, the connecting belt drives the rotating wheel to rotate, which in turn drives the walking wheel to move under the transmission of the first transmission mechanism.
[0015] Optionally, the first body is provided with a first photovoltaic panel, the first motor is connected to the first photovoltaic panel, and the first cleaning mechanism is provided on the left and right edges of the photovoltaic panel. When the cleaning device passes through the first cleaning mechanism, the first photovoltaic panel comes into contact with the first cleaning mechanism to clean the first photovoltaic panel.
[0016] Optionally, the bottom of the first body is provided with a first hollow part, the roller brush or the disc brush is located in the first hollow part, the height difference between the lowest edge of the roller brush or the disc brush and the lowest edge of the first body is less than or equal to a first preset distance, and the external shape of the first body is a streamlined shape for wind protection.
[0017] Optionally, the mobile device includes a second body, on which are rotatably mounted wheels for rolling on a first, second, and third surface of the photovoltaic panel at its high end. The second body is also equipped with a second photovoltaic panel and a second motor, the second photovoltaic panel being connected to the second motor and the second motor being connected to at least one of the wheels via a transmission connection.
[0018] Optionally, a second cleaning mechanism is also included, which is disposed on the high-end side of the photovoltaic panel. When the moving device passes by the second cleaning mechanism, the second photovoltaic panel comes into contact with the second cleaning mechanism to clean the second photovoltaic panel.
[0019] Optionally, an auxiliary walking part is also provided at the bottom of the first body.
[0020] This utility model also provides a photovoltaic panel assembly, including an inclined photovoltaic panel, and a photovoltaic panel cleaning device is provided on the photovoltaic panel, the photovoltaic panel cleaning device comprising:
[0021] A mobile device, comprising a second body, on which are rotatably mounted wheels for rolling on a first, second, and third surface of the photovoltaic panel at its high end; a second photovoltaic panel and a second motor are mounted on the second body; the second photovoltaic panel is connected to the second motor; and the second motor is connected to at least one of the wheels via a transmission connection.
[0022] A suspension mechanism, the suspension mechanism including a wheel disposed on the second body and a connecting belt wound around the wheel;
[0023] At least two cleaning devices are connected to both ends of the connecting belt. Each cleaning device includes a first body, on which a first motor and a first photovoltaic panel are mounted. The first motor is connected to the first photovoltaic panel. A roller brush or a disc brush is mounted at the bottom of the first body. The roller brush or the disc brush is connected to the first motor. When the roller brush or the disc brush rotates, it drives the cleaning device to move.
[0024] The cleaning mechanism includes a first cleaning mechanism disposed on the left and right edges of the photovoltaic panel, and a second cleaning mechanism disposed on the high-end side of the photovoltaic panel. When the cleaning device passes the first cleaning mechanism, the first photovoltaic panel comes into contact with the first cleaning mechanism to clean the first photovoltaic panel. When the moving device passes the second cleaning mechanism, the second photovoltaic panel comes into contact with the second cleaning mechanism to clean the second photovoltaic panel.
[0025] In this invention, a suspension mechanism and a connecting belt are used, with a cleaning device connected to each end of the connecting belt. This allows the downward component of the gravity of the two cleaning devices on the photovoltaic panel to cancel each other out. During the cleaning process, only the moving power of the mobile device and the rotational power of the cleaning unit are needed to overcome the cleaning and moving resistance. The required electrical energy is minimal, far less than the increased power generation of the photovoltaic panel due to cleaning. Furthermore, its low power consumption means the required electrical energy can be replenished promptly. Therefore, the photovoltaic panel can be cleaned at shorter intervals, maintaining a high level of cleanliness and ensuring consistently high power generation efficiency. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the first type of photovoltaic panel cleaning device installed on a photovoltaic panel;
[0027] Figure 2 for Figure 1 A schematic diagram of the moving device and suspension mechanism;
[0028] Figure 3for Figure 1 Partial schematic diagram of the moving device and suspension mechanism;
[0029] Figure 4 This is a schematic diagram of the external shape of a cleaning device;
[0030] Figure 5 This is a schematic diagram of a cleaning device with a roller brush as the cleaning part;
[0031] Figure 6 A cross-sectional schematic diagram of a cleaning device with a disc brush as the cleaning part;
[0032] Figure 7 A schematic diagram showing the installation of the second type of photovoltaic panel cleaning device on a photovoltaic panel;
[0033] Figure 8 for Figure 7 A schematic diagram of the moving device and suspension mechanism;
[0034] Figure 9 for Figure 7 Cross-sectional schematic diagram of the mobile device;
[0035] Figure 10 for Figure 7 A schematic diagram of the external shape of the cleaning device;
[0036] Figure 11 A bottom view of a cleaning device with a roller brush as the cleaning part;
[0037] Figure 12 for Figure 11 Cross-sectional schematic diagram of the cleaning device;
[0038] Figure 13 A cross-sectional schematic diagram of a cleaning device with a disc brush as the cleaning part;
[0039] Figure 14 A schematic diagram showing the installation of the third type of photovoltaic panel cleaning device on a photovoltaic panel;
[0040] Figure 15 for Figure 14 Schematic diagram of the moving device, suspension mechanism and cleaning device;
[0041] Figure 16 for Figure 14 A schematic diagram showing the moving device, suspension mechanism, and cleaning device docked in the docking compartment after the connecting belt is retracted;
[0042] Figure 17 for Figure 14 A schematic diagram showing the cleaning device, suspension mechanism, and cleaning device cleaning the photovoltaic panel.
[0043] In the diagram, 1. Photovoltaic panel; 2. Mobile device; 3. Suspension mechanism; 4. Cleaning device; 5. Cleaning mechanism; 6. Dock; 11. Fixing device; 12. High-end side; 13. Low-end side; 21. Second motor; 22. Second body; 23. Walking wheel; 24. Second photovoltaic panel; 31. Connecting belt; 32. Rotary wheel; 33. First axle; 42. First body; 43. First motor; 44. First photovoltaic panel; 45. Second... 46. Shaft; 47. Auxiliary walking part; 48. First winding motor; 51. First winding roller; 52. Second cleaning mechanism; 111. Support leg; 112. Fixing frame; 121. First surface; 122. Second surface; 123. Third surface; 411. Roller brush; 412. Disc brush; 421. First hollow part; 511. First fixing rod; 512. First roller brush; 521. Second fixing rod; 522. Second roller brush. Detailed Implementation
[0044] See below Figure 1-17 This utility model is described below. See also: Figure 1 , Figure 7 and Figure 14When laying photovoltaic panel 1, the photovoltaic panel 1 is laid on the fixing device 11. The fixing device 11 may include support legs 111, and a fixing frame 112 is connected to the support legs 111. The photovoltaic panel 1 is set on the fixing frame 112 in an inclined posture in the longitudinal direction. The higher side of the photovoltaic panel 1 is called the high-end side 12, and the lower side is called the low-end side 13. Both the high-end side 12 and the low-end side 13 extend laterally. The photovoltaic panel cleaning device provided by this utility model includes a moving device 2, which is set on the high-end side 12 of the photovoltaic panel 1 and can move along the lateral direction of the photovoltaic panel 1, that is, the extension direction of the high-end side 12. The moving device 2 is provided with a suspension mechanism 3, and a connecting belt 31 is suspended on the suspension mechanism 3. The connecting belt 31 can move back and forth, and a cleaning device 4 is connected to each end of the connecting belt 31. The two cleaning devices 4 are located on the photovoltaic panel 1. Since the connecting belt 31 can move back and forth, the two cleaning devices 4 can maintain balance based on their own weight under the connection of the connecting belt 31. That is, under the pulling force of the connecting belt 31, and under the action of the gravity of the cleaning device 4 itself, the supporting force of the photovoltaic panel 1, and the frictional force, the two cleaning devices 4 can remain stationary on the inclined photovoltaic panel 1. The cleaning device 4 itself can move. The cleaning device 4 is provided with a rotatable cleaning part. When the cleaning part rotates, it drives the cleaning device 4 to move and clean the photovoltaic panel 1. The two cleaning devices 4 move in opposite directions. Here, "opposite directions of movement" means that the longitudinal component of the velocity of one cleaning device 4 relative to the other cleaning device 4 in the plane where the photovoltaic panel 1 is located is opposite, while the lateral component of the velocity of the two cleaning devices 4 is the same. That is, relative to the moving device 2, one cleaning device 4 moves upward along the inclined direction of the photovoltaic panel 1, while the other cleaning device 4 moves downward along the inclined direction of the photovoltaic panel 1, so that during the movement of the two cleaning devices 4, the component of their gravity along the plane where the photovoltaic panel 1 is located always cancels each other out. Thus, during the cleaning process, there is no need to overcome the gravitational components of the two cleaning devices 4; only a small force is required to move the cleaning devices 4. As the cleaning devices 4 move, the cleaning unit rotates to clean the photovoltaic panel 1, simultaneously driving the cleaning devices 4 to move.
[0045] The specific working process is as follows: The mobile device 2 moves back and forth along the extension direction of the high-end side 12, from one end to the other, and then turns back, repeating this process. Simultaneously, the two cleaning devices 4 move up and down, one moving up and the other down. When one cleaning device 4 reaches the upper limit position of the high-end side 12, the other cleaning device 4 reaches the lower limit position of the low-end side 13. Then, the cleaning device 4 on the high-end side moves downwards, and the cleaning device 4 on the low-end side moves upwards, repeating this process. The positions of the mobile device 2 and the cleaning device 4 can be detected and their movement directions controlled by a position detection device and a controller. When the mobile device 2 is detected to have moved to the left or right limit position of the photovoltaic panel 1, it is controlled to move in the opposite direction. When the cleaning device 4 is detected to have moved to the upper or lower limit position of the photovoltaic panel 1, it is controlled to move in the opposite direction. Alternatively, other existing technologies can be used to control the movement directions of the mobile device 2 and the cleaning device 4.
[0046] This allows the photovoltaic panel cleaning device to overcome movement and cleaning resistance simply by providing the moving power of the moving device 2 and the rotational power of the cleaning part of the cleaning device 4 during the cleaning process. Because the cleaning device 4 and the moving device 2 are small and lightweight, the frictional resistance that the moving device 2 needs to overcome during movement is small, and therefore the moving power required by the moving device 2 is also small. Furthermore, as mentioned above, the gravitational component of the cleaning device 4 is offset, and the rotational power required by the rotating part of the cleaning device 4 is also small. Therefore, the total driving force required by the photovoltaic panel cleaning device is small, resulting in less electrical energy consumption and lower energy efficiency. Thus, firstly, the energy efficiency of the photovoltaic panel cleaning device is low, and the energy consumed can be replenished promptly. Secondly, the electrical energy consumed by the photovoltaic panel cleaning device is much less than the increased power generation of the photovoltaic panel 1 due to cleaning. Therefore, the photovoltaic panel cleaning device can use additional power-generating photovoltaic panels or other low-power power sources as its power source. When using photovoltaic (PV) panels, the power generation efficiency of these PV panels is greater than or equal to the power consumption efficiency of the PV panel cleaning device, ensuring that the electricity generated by the PV panels can promptly meet the power consumption needs of the PV panel cleaning device. During sunny days, the PV panel cleaning device can continuously clean the PV panels. Thus, the PV panel cleaning device can clean the PV panels at relatively short intervals (cleaning during the day and stopping at night), maintaining a high level of cleanliness on the surface of PV panel 1. This keeps PV panel 1 at a consistently high power generation efficiency. Furthermore, due to the high cleaning frequency, the adhesion between dust and impurities and PV panel 1 is lower, making cleaning easier.
[0047] The moving device 2 can be a ball screw structure, a gear and rack structure, or a linear module, etc., in which case the suspension mechanism can be set on the moving block of the moving device. The moving device 2 can also be equipped with a walking mechanism, such as wheels, which drives the entire moving device 2 to move along the high-end side 12 of the photovoltaic panel 1.
[0048] The suspension mechanism 3 may include a wheel 32 mounted on the moving device 2. The wheel 32 may be fixedly mounted on the moving device 2, with a connecting belt 31 wound around it. The contact surfaces of the connecting belt 31 and the wheel 32 are relatively smooth, resulting in low friction during relative movement. Preferably, the wheel 32 is rotatably mounted on the moving device 2.
[0049] Optionally, the cleaning part of the cleaning device 4 can be either a roller brush 411 or a disc brush 412.
[0050] The first type is: when the cleaning section is a roller brush 411, see [link / reference]. Figure 4 and Figure 5 as well as Figure 10 , Figure 11 and Figure 12 The cleaning device 4 includes a first body 42, on which a first motor 43 is mounted. The cleaning unit includes a roller brush 411 rotatably mounted at the bottom of the first body 42. The roller brush 411 is connected to the first motor 43 via a transmission connection. When the roller brush 411 rotates, it drives the cleaning device to move and clean the photovoltaic panel 1. One or more roller brushes 411 may be provided, with at least one roller brush 411 being connected to the first motor 43 via a transmission connection. Thus, while performing its cleaning function, the roller brush 411 also acts like a wheel, driving the cleaning device 4 to move. The roller brush 411 can be similar to the roller brushes used on robotic vacuum cleaners.
[0051] The second type is: when the cleaning section is a disc brush 412, see [link / reference]. Figure 4 and Figure 6 as well as Figure 10 and Figure 13The cleaning unit includes a disc brush 412 rotatably mounted at the bottom of the first body 42. The disc brush 412 is connected to the first motor 43, and its rotation drives the cleaning device 4 to move. When installing the disc brush 412, its axis can be tilted at a certain angle to the first body 42 in a predetermined direction. When the disc brush 412 rotates, its outer edge contacts the photovoltaic panel 1, generating friction. Due to the tilt angle, the disc brush 412 does not remain stationary; the friction is converted into a force that propels the cleaning device 4 in a straight line. By changing the direction of rotation of the first motor 43, the cleaning device 4 moves up and down. Alternatively, multiple disc brushes 412 can be mounted at the bottom of the first body 42, and the combined motion of these multiple brushes enables the cleaning device 4 to move in a straight line. In this way, the disc brush 412, while performing its cleaning function, also acts like a wheel, driving the cleaning device 4 to move.
[0052] Optionally, see Figure 14-17 At least one cleaning device 4 is provided with a first winding roller 48 and a first winding motor 47. The end of the connecting belt 31 is connected to the first winding roller 48. The first winding roller 48 is connected to the first winding motor 47 in a transmission connection. The high-end side 12 of the photovoltaic panel 1 is also provided with a docking compartment 6 for the mobile device 2 and the cleaning device 4 to dock.
[0053] Both cleaning devices 4 can be equipped with a first winding roller 48 and a first winding motor 47, with the first winding motor 47 connected to the first photovoltaic panel 44. The two ends of the connecting belt 31 are respectively connected to the first winding roller 48. Thus, when cleaning is not required, the connecting belt 31 is retracted by controlling the first winding motor 47 to rotate the first winding roller 48, causing the connecting belt 31 to wind around the first winding roller 48. Then, see... Figure 16 The moving device 2 moves the two cleaning devices 4 to the docking compartment 6 for docking. When cleaning is required, refer to... Figure 17 After the moving device 2 drives the two cleaning devices 4 out of the docking compartment 6, it controls the first winding motor 47 to drive the first winding roller 48 to rotate and release the connecting belt 31. After the release is completed, the first winding motor 47 stops working, the first winding roller 48 stops rotating, and the rotating part of the cleaning device 4 rotates, driving the cleaning device 4 to move.
[0054] Optionally, see Figure 15 The cleaning device 4 preferably has two roller brushes 411, and the first motor 43 can also be configured as two, with the two first motors 43 respectively connected to the two roller brushes 411. In this case, the first body 42 refers to the structure used to fix the first motors 43 and install the roller brushes 411.
[0055] Optionally, the cleaning device 4 and the moving device 2 can be driven by independent drive mechanisms. The drive mechanism of the cleaning device 4 can be a first motor 43, and the drive mechanism of the moving device 2 can be a second motor 21. The power supply devices for the first motor 43 and the second motor 21 are both photovoltaic panels. The device also includes a cleaning mechanism 5 for cleaning the photovoltaic panels.
[0056] The first motor 43 can be connected to the photovoltaic panel, which directly powers the first motor 43. The second motor 21 can also be connected to the photovoltaic panel, which directly powers the second motor 21. Alternatively, the cleaning device 4 and the moving device 2 can be equipped with batteries, allowing excess electricity generated by the photovoltaic panel to be stored and used at night to clean the photovoltaic panel 1. The first motor 43 and the second motor 21 can share a single photovoltaic panel or use separate panels. When using the same photovoltaic panel, it can be mounted on the moving device 2, with the first motor 43 connected to it via a long wire and the second motor 21 connected via a short wire. Because the photovoltaic panel cleaning device has low power consumption, a small photovoltaic panel is sufficient to meet its power requirements. The cleaning mechanism of the photovoltaic panel cleans the panel, maintaining its cleanliness and thus ensuring its power generation efficiency.
[0057] Optionally, the mobile device 2 may not have an independent drive mechanism; instead, the movement of the cleaning device 4 drives the movement of the mobile device 2. The specific structure is as follows:
[0058] The mobile device 2 includes a second body 22, on which a traveling wheel 23 is mounted, moving along the high-end side 12 of the photovoltaic panel 1. The suspension mechanism 3 includes a rotating wheel 32 rotatably mounted on the second body 22. The rotating wheel 32 and the traveling wheel 23 are connected by a first transmission mechanism, which includes at least two transmission modes: co-directional transmission and reverse transmission. The first transmission mechanism may also include an intermittent mode, where one device moves while the other does not move. Thus, when the cleaning device 4 moves up and down to clean, the mobile device 2 remains stationary for a certain period, allowing the cleaning device 4 to perform vertical cleaning of the photovoltaic panel 1 rather than diagonal cleaning. Then, the intermittent mode ends, the mobile device 2 moves an appropriate distance, and enters the intermittent mode again, and the cleaning device 4 performs vertical cleaning again, and so on. The first transmission mechanism can be a transmission mechanism of existing technology, which will not be elaborated here. The connecting belt 31 is wrapped around the rotating wheel 32 and can drive the rotating wheel 32 to move synchronously; when the two cleaning devices 4 move in opposite directions, the connecting belt 31 drives the rotating wheel 32 to rotate, and under the transmission of the first transmission mechanism, it drives the walking wheel 23 to move.
[0059] The specific details of the exercise are as follows: See Figure 1 When the right-side sweeping device 4 moves downward and the left-side sweeping device 4 moves upward, the connecting belt 31 moves clockwise, thereby driving the rotating wheel 32 to rotate clockwise. At this time, the first transmission mechanism is in the same direction, and the traveling wheel 23 also rotates clockwise, causing the moving device 2 to move to the right. When the right-side sweeping device 4 moves upward and the left-side sweeping device 4 moves downward, the connecting belt 31 drives the rotating wheel 32 to rotate counterclockwise, the first transmission mechanism becomes in the reverse direction, and the traveling wheel 23 also rotates clockwise, causing the moving device 2 to continue moving to the right, thus completing the movement of the moving device 2 from left to right. The movement of the moving device 2 from right to left is similar; only the transmission direction of the first transmission mechanism needs to be set.
[0060] The rotating wheel 32 can be a synchronous wheel, and the corresponding connecting belt 31 can be a synchronous belt; or the rotating wheel 32 can be a V-shaped wheel, and the corresponding connecting belt 31 can be a V-shaped belt, which drives the V-shaped wheel to rotate synchronously through friction; or the rotating wheel 32 can be a sprocket, and the connecting belt 31 can be a chain; of course, it can also be other structures that make the rotating wheel 32 and the connecting belt 31 rotate synchronously.
[0061] Optionally, a first photovoltaic panel 44 is provided on the first body 42, and a first motor 43 is connected to the first photovoltaic panel 44. The system also includes a first cleaning mechanism 51 disposed on the left and right edges of the photovoltaic panel 44. When the cleaning device 4 passes through the first cleaning mechanism 51, the first photovoltaic panel 44 contacts the first cleaning mechanism 51 to clean the first photovoltaic panel 44. The first photovoltaic panel 44 can be a traditional photovoltaic panel or a thin-film photovoltaic panel, which is attached to the streamlined upper surface of the first body 42.
[0062] See Figure 1 and Figure 7 and Figure 16 The first cleaning mechanism 51 may include a first fixed rod 511 and a rotatable first roller brush 512. When the cleaning device 4 passes through the first cleaning mechanism 51, the first photovoltaic panel 44 comes into contact with the first roller brush 512, and the first roller brush 512 rotates passively to clean the first photovoltaic panel 44.
[0063] Optionally, see Figure 5 and Figure 6 as well as Figure 11 , Figure 12 and Figure 13The bottom of the first body 42 is provided with a first hollow portion 421. A roller brush 411 or a disc brush 412 is located inside the first hollow portion 421. The height difference between the lowest edge of the roller brush 411 or the disc brush 412 and the lowest edge of the first body 42 is less than or equal to a first preset distance. The first preset distance can be specifically determined as needed, with the aim of making the lowest edge of the first body 42 slightly higher than the lowest edge of the roller brush 411 or the disc brush 412. This ensures that while the roller brush 411 or the disc brush 412 can contact and clean the photovoltaic panel 1, the distance between the lowest edge of the first body 42 and the photovoltaic panel 1 is as small as possible. This prevents wind from blowing into the bottom of the first body 42 and tipping over the cleaning device 4. The external shape of the first body 42 can be streamlined, which further reduces the wind resistance of the first body 42 and further reduces the risk of the cleaning device 4 being blown over by the wind.
[0064] Optionally, see Figure 2 and Figure 3 as well as Figure 7 , Figure 8 and Figure 9 The mobile device 2 includes a second body 22, on which are rotatably mounted wheels 23 for rolling on the first surface 121, the second surface 122, and the third surface 123 of the high-end side 12 of the photovoltaic panel 1. A second photovoltaic panel 24 is mounted on the second body 22 and is connected to a second motor 21. The second motor 21 is connected to at least one wheel 23 in a transmission connection. The mobile device 2 also includes a second cleaning mechanism 52 disposed on the high-end side 12 of the photovoltaic panel 1. When the mobile device 2 passes the second cleaning mechanism 52, the second photovoltaic panel 24 comes into contact with the second cleaning mechanism 52 to clean the second photovoltaic panel 24.
[0065] The second cleaning mechanism 52 may include a second fixed rod 521 and a rotatable second roller brush 522. When the moving device 2 passes through the second cleaning mechanism 52, the second photovoltaic panel 24 comes into contact with the second roller brush 522, and the second roller brush 522 rotates passively to clean the second photovoltaic panel 24.
[0066] The moving principle of mobile device 2:
[0067] Since the wheels 23 of the moving device 2 are located on the first surface 121, the second surface 122, and the third surface 123 of the high-end side 12 of the photovoltaic panel 1, the moving device 2 can be prevented from detaching from the high-end side 12. The second motor 21 is driven by at least one of the wheels 23. The wheel 23 driven by the second motor 21 plays the main role in driving the moving device 2, while the other wheels 23 play an auxiliary role in moving the moving device 2, thereby enabling the moving device 2 to move along the high-end side 12. In this way, the wheels 23 form rolling friction with the first surface 121, the second surface 122, and the third surface 123, which can reduce the moving resistance of the moving device 2.
[0068] Optionally, see Figure 11 The bottom of the first body 42 may also be provided with an auxiliary walking part 46. Adding the auxiliary walking part 46 increases the mobility of the cleaning device 4. The auxiliary walking part 46 can be a caster wheel, preferably a bullseye wheel. The auxiliary walking part 46 can also be a fine brush located at the four corners of the bottom of the first body 42. Since the cleaning device 4 needs to move left and right under the drive of the moving device 2 while moving up and down, setting the auxiliary walking part 46 as a caster wheel facilitates the mobility of the cleaning device 4.
[0069] The following describes a preferred embodiment: See Figure 1-17 The photovoltaic panel cleaning device includes a moving device 2, which is located on the high-end side 12 of the photovoltaic panel 1. The moving device 2 includes a second body 22. The second body 22 is preferably streamlined. A second motor 21 and a traveling wheel 23 are provided on the second body 22. The second motor is connected to at least one of the traveling wheels 23. The traveling wheel 23 rolls laterally on the first surface 121, the second surface 122, and the third surface 123 of the high-end side 12 of the photovoltaic panel 1. A second photovoltaic panel 24 is also provided on the second body 22. When the second body 22 is streamlined, the second photovoltaic panel 24 can be a thin-film photovoltaic panel, attached to the outer surface of the second body 22. When the second photovoltaic panel 24 is a conventional photovoltaic panel, it can be substantially parallel to the photovoltaic panel 1. A position detection device and a controller are provided on the moving device 2. When the moving device 2 is detected to have moved to the left or right limit position, the controller starts to control the moving device 2 to move in the opposite direction. The second photovoltaic panel 24 can directly supply power to the second motor 21. When the second photovoltaic panel 24 receives sunlight and generates electricity, it transmits the electricity to the second motor 21, causing the second motor 21 to rotate and the moving device 2 to move. When the second photovoltaic panel 24 receives insufficient sunlight and cannot generate enough electrical energy, the second motor 21 stops rotating, and the moving device 2 stops moving. A suspension mechanism 3 is provided on the second body 22. The suspension mechanism 3 may include two rotating wheels 32, which can be fixed pulleys. They are rotatably mounted on the second body 22 via a first shaft 33, and the rotating wheels 32 can be parallel to the photovoltaic panel 1. A connecting belt 31 is wound around the rotating wheels 32, and a cleaning device 4 is connected to each end of the connecting belt 31. The cleaning device 4 includes a first body 42. The external shape of the first body 42 is streamlined, see [reference needed]. Figure 4 and Figure 10 It can be frustum-shaped, or a similar wave-like shape resembling a mountain. See also Figure 5 , Figure 11 and Figure 12A first motor 43 is mounted on the first body 42, and the first motor 43 is connected to the roller brush 411. A first hollow part 421 is provided at the bottom of the first body 42, and the roller brush 411 is located in the first hollow part 421 and is rotatably mounted on the first body 42 via a second shaft 45. The bottom edge of the first body 42 is slightly higher than the bottom edge of the roller brush 411, and an auxiliary walking part 46 is provided at the bottom of the first body 42. A first photovoltaic panel 44 is provided on the outer surface of the first body 42. The first photovoltaic panel 44 can be a thin-film photovoltaic panel to adapt to the streamlined shape of the first body 42, so that the first photovoltaic panel 44 is attached to the outer surface of the first body 42. The first photovoltaic panel 44 can directly supply power to the first motor 43. When the first photovoltaic panel 44 receives sunlight and generates electricity, it transmits the electricity to the first motor 43. The first motor 43 rotates, the roller brush 411 rotates, and the cleaning device 4 moves while cleaning the photovoltaic panel 1. Due to the pulling force of the connecting belt 31, one cleaning device 4 moves upward and the other moves downward. A position sensor and controller can be installed on each cleaning device 4. When the controller detects that a cleaning device 4 has moved to its upper or lower limit position, it controls the cleaning device 4 to move in the opposite direction. Furthermore, because the moving device 2 moves laterally, while the two cleaning devices 4 are moving up and down, the moving device 2 also drives the two cleaning devices 4 to move laterally. See also... Figure 1 and Figure 7 A first cleaning mechanism 51 is provided on both the left and right sides of the photovoltaic panel 1. The first cleaning mechanism 51 may include a first fixing rod 511 and a first roller brush 512. A second cleaning mechanism 52 is provided on the high-end side 12 of the photovoltaic panel 1. The second cleaning mechanism 52 includes a second fixing rod 521 and a second roller brush 522. When the cleaning device 4 moves past the first cleaning mechanism 51, the first photovoltaic panel 44 comes into contact with the first roller brush 512, and the first roller brush 512 cleans the first photovoltaic panel 44. When the moving device 2 moves to the position of the second roller brush 522, the second photovoltaic panel 24 comes into contact with the second roller brush 522, and the second roller brush 522 cleans the second photovoltaic panel 24.
[0070] Another preferred embodiment provided by this utility model is to replace the roller brush 411 of the previous embodiment with the disc brush 412.
[0071] This utility model also provides a photovoltaic panel assembly, including an inclined photovoltaic panel 1, on which a photovoltaic panel cleaning device is provided. The photovoltaic panel cleaning device includes: a moving device 2, which includes a second body 22, on which are rotatably mounted wheels 23 for rolling on a first surface 121, a second surface 122, and a third surface 123 of the high-end side 12 of the photovoltaic panel 1; a second power-generating photovoltaic panel 24 and a second motor 21, on which the second power-generating photovoltaic panel 24 is connected; and the second motor 21 is drivenly connected to at least one wheel 23. A suspension mechanism 3 includes a rotating wheel 32 mounted on the second body 22 and a connecting belt 31 wound around the rotating wheel 32; the rotating wheel 32 can be a fixed pulley. At least two cleaning devices 4 are connected to the two ends of the connecting belt 31. Each cleaning device 4 includes a first body 42, on which a first motor 43 and a first photovoltaic panel 44 are mounted. The first motor 43 is connected to the first photovoltaic panel 44. A roller brush 411 or a disc brush 412 is mounted at the bottom of the first body 42. The roller brush 411 or the disc brush 412 is connected to the first motor 43 for transmission. When the roller brush 411 or the disc brush 412 rotates, it drives the cleaning device 4 to move. A cleaning mechanism 5 is provided, including a first cleaning mechanism 51 located at the left and right edges of the photovoltaic panel 1, and a second cleaning mechanism 52 located at the high end side 12 of the photovoltaic panel 1. When the cleaning device 4 passes the first cleaning mechanism 51, the first photovoltaic panel 44 contacts the first cleaning mechanism 51 to clean the first photovoltaic panel 44. When the moving device 2 passes the second cleaning mechanism 52, the second photovoltaic panel 24 contacts the second cleaning mechanism 52 to clean the second photovoltaic panel 24.
[0072] The above embodiments are merely illustrative of the present invention and not limiting. Under the concept of the present invention, technical solutions without substantial changes are still within the protection scope of the present invention.
Claims
1. A photovoltaic panel cleaning device, comprising a movable device movable along an extension direction of the high-end side of the photovoltaic panel, characterized in that, The mobile device is equipped with a suspension mechanism, on which a reciprocating connecting belt is suspended. Each end of the connecting belt is connected to a cleaning device, and the two cleaning devices are balanced by their own weight. Each cleaning device is equipped with a rotatable cleaning part, which rotates to clean the photovoltaic panel and drives the two cleaning devices to move in opposite directions.
2. The photovoltaic panel cleaning device as described in claim 1, characterized in that, The cleaning device includes a first body, on which a first motor is mounted; The cleaning unit includes a roller brush rotatably disposed at the bottom of the first machine body. The roller brush is driven to the first motor. When the roller brush rotates, it drives the cleaning device to move and clean the photovoltaic panel. Alternatively, the cleaning unit includes a disc brush rotatably disposed at the bottom of the first machine body. The disc brush is driven to the first motor. When the disc brush rotates, it drives the cleaning device to move and clean the photovoltaic panel.
3. The photovoltaic panel cleaning device as described in claim 2, characterized in that, At least one of the cleaning devices is further provided with a first winding roller and a first winding motor, the end of the connecting belt is connected to the first winding roller, the first winding roller is drivenly connected to the first winding motor, and the high-end side of the photovoltaic panel is also provided with a docking compartment for the mobile device and the cleaning device to dock.
4. The photovoltaic panel cleaning device as described in claim 2, characterized in that, The number of roller brushes is set to two.
5. The photovoltaic panel cleaning device as described in claim 1, characterized in that, The sweeping device is driven by a first motor, and the moving device is driven by a second motor. Both the first motor and the second motor are powered by photovoltaic panels.
6. The photovoltaic panel cleaning device as described in claim 2, characterized in that, The mobile device includes a second body with a walking wheel that moves along the high end of the photovoltaic panel. The suspension mechanism includes a rotating wheel rotatably mounted on the second body. The rotating wheel and the walking wheel are connected by a first transmission mechanism, which includes at least two transmission modes: co-directional transmission and reverse transmission. The connecting belt is wrapped around the rotating wheel and moves synchronously with it. When the two cleaning devices move in opposite directions, the connecting belt drives the rotating wheel to rotate, which in turn drives the walking wheel to move under the transmission of the first transmission mechanism.
7. The photovoltaic panel cleaning device as described in claim 2, characterized in that, The first body is provided with a first photovoltaic panel, the first motor is connected to the first photovoltaic panel, and the first cleaning mechanism is provided on the left and right edges of the photovoltaic panel. When the cleaning device passes through the first cleaning mechanism, the first photovoltaic panel comes into contact with the first cleaning mechanism to clean the first photovoltaic panel.
8. The photovoltaic panel cleaning device as described in claim 2, characterized in that, The bottom of the first body is provided with a first hollow part, the roller brush or the disc brush is located in the first hollow part, the height difference between the lowest edge of the roller brush or the disc brush and the lowest edge of the first body is less than or equal to a first preset distance, and the external shape of the first body is a streamlined shape for wind protection.
9. The photovoltaic panel cleaning device as described in claim 1, characterized in that, The mobile device includes a second body, on which are rotatably mounted wheels for rolling on a first, second, and third surface of the photovoltaic panel at its high end. The second body is also equipped with a second photovoltaic panel and a second motor. The second photovoltaic panel is connected to the second motor, and the second motor is connected to at least one of the wheels via a transmission connection.
10. The photovoltaic panel cleaning device as described in claim 9, characterized in that, It also includes a second cleaning mechanism disposed on the high-end side of the photovoltaic panel. When the moving device passes by the second cleaning mechanism, the second photovoltaic panel comes into contact with the second cleaning mechanism to clean the second photovoltaic panel.
11. The photovoltaic panel cleaning device as described in claim 2, characterized in that, The bottom of the first body is also provided with an auxiliary walking part.
12. A photovoltaic panel assembly, comprising an inclined photovoltaic panel, wherein a photovoltaic panel cleaning device is disposed on the photovoltaic panel, characterized in that, The photovoltaic panel cleaning device includes: A mobile device, comprising a second body, on which are rotatably mounted wheels for rolling on a first, second, and third surface of the photovoltaic panel at its high end; a second photovoltaic panel and a second motor are mounted on the second body; the second photovoltaic panel is connected to the second motor; and the second motor is connected to at least one of the wheels via a transmission connection. A suspension mechanism, the suspension mechanism including a wheel disposed on the second body and a connecting belt wound around the wheel; At least two cleaning devices are connected to both ends of the connecting belt. Each cleaning device includes a first body, on which a first motor and a first photovoltaic panel are mounted. The first motor is connected to the first photovoltaic panel. A roller brush or a disc brush is mounted at the bottom of the first body. The roller brush or the disc brush is connected to the first motor. When the roller brush or the disc brush rotates, it drives the cleaning device to move. The cleaning mechanism includes a first cleaning mechanism disposed on the left and right edges of the photovoltaic panel, and a second cleaning mechanism disposed on the high-end side of the photovoltaic panel. When the cleaning device passes the first cleaning mechanism, the first photovoltaic panel comes into contact with the first cleaning mechanism to clean the first photovoltaic panel. When the moving device passes the second cleaning mechanism, the second photovoltaic panel comes into contact with the second cleaning mechanism to clean the second photovoltaic panel.