Photovoltaic module cleaning device

Abstract

The utility model relates to the technical field of photovoltaic module cleaning, and discloses a photovoltaic module cleaning device. The photovoltaic module cleaning device comprises a cleaning module, a driving mechanism and a connecting belt, the cleaning module is used for cleaning a photovoltaic panel, the driving mechanism is arranged on a photovoltaic frame, the connecting belt extends in the length direction of the photovoltaic module, and the connecting belt is rotationally connected with the driving mechanism and fixedly connected with the cleaning module. When the driving mechanism drives the connecting belt to move in the length direction of the photovoltaic module, the cleaning module moves along with the connecting belt and rolls on the photovoltaic panel. The cleaning assembly can effectively clean the photovoltaic panel; the driving mechanism is placed on the photovoltaic frame, so that the pressure on the photovoltaic panel can be reduced, and the photovoltaic panel is prevented from being damaged; according to the photovoltaic panel cleaning device, the cleaning assembly is fixed to the connecting belt through the connecting belt, when the driving mechanism drives the connecting belt to move, the cleaning assembly fixed to the connecting belt also moves on the photovoltaic panel, and compression of the cleaning assembly on the photovoltaic panel is relieved.

Description

Technical Field

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

[0002] Photovoltaic (PV) modules convert solar energy into electrical energy, which is then stored in batteries or used to power loads, making them a core component of solar power systems. However, because PV modules are installed outdoors, over time, dust particles, debris, and frost accumulate on the panels, forming a light-blocking dust layer. This significantly reduces the energy output efficiency of the PV modules, and large areas of opaque contaminants can create hot spots, leading to localized overheating and even burnout. Therefore, timely cleaning of the dust layer from the surface of PV modules is essential for their proper functioning.

[0003] Chinese invention patent CN111530803A discloses a photovoltaic panel cleaning robot with a guide rail mechanism that operates stably. It includes a photovoltaic panel mounting frame and several photovoltaic panels. Two slide rail bases are evenly installed on the upper surface of the photovoltaic panel mounting frame. The two slide rail bases are slidably set with both ends of the longitudinal moving mechanism. The longitudinal moving mechanism includes a protective shell, a longitudinal power motor, a longitudinal power motor bevel gear, a transmission bevel gear, a moving support block, a rotating threaded sleeve, a rotating threaded sleeve gear, and a transmission gear. A wiping turntable is installed below the longitudinal moving mechanism, and a cleaning brush is installed on the lower end surface of the wiping turntable.

[0004] However, the above technical solution has the following technical problems: the cleaning robot placed on the photovoltaic module has a complex structure and is too heavy, which increases the pressure on the photovoltaic module and can easily cause damage to the photovoltaic module. Utility Model Content

[0005] The purpose of this invention is to overcome the problem that the existing cleaning robots placed on photovoltaic modules are too heavy and easily cause damage to the photovoltaic modules. This invention provides a photovoltaic module cleaning device with a simple structure and a lightweight structure placed on the photovoltaic panel. It can effectively clean the photovoltaic panel without causing damage to it.

[0006] To achieve the above objectives, this utility model provides a photovoltaic module cleaning device. The photovoltaic module includes a photovoltaic frame and a plurality of photovoltaic panels installed on the photovoltaic frame. The photovoltaic module cleaning device includes: a cleaning component for cleaning the photovoltaic panels; a driving mechanism disposed on the photovoltaic frame; and a connecting belt extending along the length direction of the photovoltaic module. The connecting belt is rotatably connected to the driving mechanism and fixedly connected to the cleaning component. When the driving mechanism drives the connecting belt to move along the length direction of the photovoltaic module, the cleaning component moves with the connecting belt and rolls on the photovoltaic panels.

[0007] Preferably, the cleaning assembly includes: a support shaft; a roller brush disposed on the outer wall of the support shaft; two bearing seats, which are rotatably connected to both ends of the support shaft via bearings, and the bearing seats are fixedly connected to the connecting belt.

[0008] Preferably, the cleaning assembly further includes two conical wheels, which are symmetrically fixed at both ends of the support shaft and located outside the bearing seat. The cross-sectional area of ​​the conical wheels gradually increases in the direction away from the roller brush. The conical wheels can roll on the photovoltaic frame to restrict the axial movement of the cleaning assembly along the support shaft.

[0009] Preferably, the cleaning component further includes two horn wheels, which are respectively fixedly disposed at both ends of the support shaft and located outside the conical wheel, so as to restrict the cleaning component from detaching from the photovoltaic module along the axial direction of the support shaft.

[0010] Preferably, the cleaning assembly further includes two locking members, which are respectively installed at both ends of the support shaft and located outside the horn wheel, to prevent the horn wheel from disengaging from the cleaning assembly along the axial direction of the support shaft.

[0011] Preferably, two connecting straps are provided, and the two connecting straps are respectively fixedly connected to both ends of the cleaning component.

[0012] Preferably, the driving mechanism includes: a first motor disposed on the photovoltaic frame; a linkage shaft connected to the first motor, and the axial direction of the linkage shaft is perpendicular to the length direction of the photovoltaic module; and two winding members disposed at both ends of the linkage shaft along the axial direction of the linkage shaft, and the two winding members are rotatably connected to the two connecting belts respectively.

[0013] Preferably, the cleaning component is capable of reciprocating along the length of the photovoltaic component.

[0014] Preferably, there are two drive mechanisms, which are respectively arranged on both sides of the photovoltaic frame along the length of the photovoltaic module. The first motors of the two drive mechanisms drive in opposite directions, so that the rotation directions of the two linkage shafts are opposite. The two ends of the connecting belt are respectively rotatably connected to a winding component of one drive mechanism and a winding component of the other drive mechanism.

[0015] Preferably, the photovoltaic module cleaning device further includes a positioning component, which includes: a sensing plate disposed on the cleaning component and having an insertion hole; a sensing switch disposed on the photovoltaic frame; and a second motor disposed on the photovoltaic frame, wherein the output shaft of the second motor is driven by a positioning rod, wherein when the sensing switch senses the passage of the sensing plate, the driving mechanism stops moving and the positioning rod of the second motor inserts into the insertion hole to achieve positioning of the cleaning component.

[0016] Through the above technical solutions, the cleaning components can effectively clean the photovoltaic panels, thereby improving the photoelectric conversion efficiency of the photovoltaic panels and ensuring their long-term efficient operation. Since the photovoltaic frame is the structure that supports and fixes the photovoltaic panels, placing the drive mechanism on the photovoltaic frame can reduce the pressure on the photovoltaic panels and thus prevent damage. In addition, by setting a connecting belt, the cleaning components are fixed to the connecting belt. When the drive mechanism drives the connecting belt to move, the cleaning components fixed on the connecting belt will move on the photovoltaic panels along with the connecting belt. This can reduce the pressure of the cleaning components on the photovoltaic panels and enable comprehensive cleaning of the photovoltaic panels. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the photovoltaic module cleaning device disclosed in this embodiment;

[0018] Figure 2 This is an exploded view of the cleaning component of the photovoltaic module cleaning device disclosed in this embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of the photovoltaic module cleaning device disclosed in this embodiment, showing the cooperation between the support shaft and the roller brush.

[0020] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of a portion of the photovoltaic module cleaning device disclosed in this embodiment;

[0022] Figure 6 yes Figure 5A magnified view of a section at point B; and

[0023] Figure 7 This is a schematic diagram of the structure of the photovoltaic module cleaning device disclosed in this embodiment, showing the conical wheel and the photovoltaic frame working together.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Photovoltaic module; 11. Photovoltaic frame; 12. Photovoltaic panel; 2. Cleaning component; 21. Support shaft; 22. Roller brush; 23. Bearing seat; 24. Bearing; 25. Conical wheel; 26. Horn wheel; 27. Locking component; 28. Liquid outlet; 3. Drive mechanism; 31. First motor; 32. Linkage shaft; 33. Winding component; 34. Gear motor; 35. Support base; 4. Connecting belt; 5. Pipe; 6. Positioning component; 61. Induction plate; 62. Socket; 63. Induction switch; 64. Second motor; 65. Positioning rod. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] This utility model provides a photovoltaic module cleaning device, see [link]. Figure 1 and Figure 5 The photovoltaic module 1 includes a photovoltaic frame 11 and a plurality of photovoltaic panels 12 installed on the photovoltaic frame 11. The photovoltaic module cleaning device includes a cleaning component 2, a drive mechanism 3 and a connecting belt 4. The cleaning component 2 is used to clean the photovoltaic panels 12. The drive mechanism 3 is disposed on the photovoltaic frame 11. The connecting belt 4 extends along the length direction of the photovoltaic module 1. The connecting belt 4 is rotatably connected to the drive mechanism 3 and fixedly connected to the cleaning component 2. When the drive mechanism 3 drives the connecting belt 4 to move along the length direction of the photovoltaic module 1, the cleaning component 2 moves with the connecting belt 4 and rolls on the photovoltaic panel 12.

[0028] The cleaning component 2 can remove dust and impurities from the surface of the photovoltaic panel 12, effectively cleaning the photovoltaic panel 12 and thus improving the photoelectric conversion efficiency of the photovoltaic panel 12, ensuring the long-term high-efficiency operation of the photovoltaic panel 12. Since the photovoltaic frame 11 is the structure that supports and fixes the photovoltaic panel 12, placing the drive mechanism 3 on the photovoltaic frame 11, compared with the existing setting of placing it on the photovoltaic panel 12, can reduce the pressure on the photovoltaic panel 12 and thus avoid damage to the photovoltaic panel 12. In addition, by setting the connecting belt 4, the cleaning component 2 is fixed on the connecting belt 4. When the drive mechanism 3 drives the connecting belt 4 to move, the cleaning component 2 fixed on the connecting belt 4 will move on the photovoltaic panel 12 with the connecting belt 4. On the one hand, it can reduce the pressure of the cleaning component 2 on the photovoltaic panel 12, and on the other hand, it can clean the photovoltaic panel 12 from all directions. This disclosure is particularly applicable to the cleaning of dirt formed after gypsum powder adheres to the surface of the photovoltaic module and hardens. In the photovoltaic module cleaning device disclosed herein, only the cleaning component 2 is placed on the photovoltaic panel 12, and the drive mechanism 3 is placed on the photovoltaic frame 11 and the drive mechanism 3 and the cleaning component 2 are connected by the connecting belt 4, which significantly reduces the pressure on the photovoltaic panel 12 and avoids damage to the photovoltaic panel 12 due to excessive pressure.

[0029] As one example, see Figures 2 to 4 The cleaning component 2 includes a support shaft 21, a roller brush 22 and two bearing seats 23. The roller brush 22 is disposed on the outer wall of the support shaft 21. The two bearing seats 23 are rotatably connected to both ends of the support shaft 21 through bearings 24. The bearing seats 23 are fixedly connected to the connecting belt 4. The support shaft 21 serves as the support structure for the roller brush 22, ensuring that the roller brush 22 can stably clean the photovoltaic panel 12. The roller brush 22 can closely contact the surface of the photovoltaic panel 12 and remove dust and impurities from the surface of the photovoltaic panel 12 by rolling, ensuring effective cleaning of the surface of the photovoltaic panel 12. The bearing seat 23 and bearing 24 are provided so that when the support shaft 21 rotates, the bearing seat 23 will not rotate, allowing the roller brush 22 on the support shaft 21 to roll on the photovoltaic panel 12 and clean it. The bearing seat 23 is fixedly connected to the connecting belt 4, so that while the drive mechanism 3 drives the connecting belt 4 to move along the length of the photovoltaic module 1, the bearing seat 23 fixedly set on the connecting belt 4 also moves accordingly, thereby allowing the cleaning component 2 to move with the connecting belt 4 to achieve effective cleaning of the photovoltaic panel 12.

[0030] See Figure 3 and Figure 4Preferably, the roller brush 22 is spirally wound around the outer wall of the support shaft 21. The spiral roller brush 22 can fit more closely to the surface of the photovoltaic panel 12, further improving the cleaning effect of dust and impurities on the photovoltaic panel 12; and the spiral roller brush 22 can ensure that even if part of the roller brush 22 on the support shaft 21 is worn, the remaining roller brush 22 can still clean the photovoltaic panel 12, ensuring the cleaning effect of the roller brush 22; at the same time, the spiral roller brush 22 can ensure that the cleaning component 2 rolls stably on the photovoltaic panel 12.

[0031] Further, see Figure 4 The support shaft 21 is a hollow shaft with multiple liquid outlet holes 28 on its outer wall. The pipe 5 can inject cleaning fluid into the hollow shaft so that the cleaning fluid flows into the photovoltaic panel 12 along the liquid outlet holes 28. The existing photovoltaic panel 12 has dust and impurities such as plaster and dirt. The rolling cleaning of the roller brush 22 alone cannot completely clean the dust and impurities. Therefore, by injecting cleaning fluid into the hollow shaft, the cleaning fluid flows into the photovoltaic panel 12 through the liquid outlet holes 28. Under the combined cleaning action of the roller brush 22 and the cleaning fluid, the cleaning effect of the photovoltaic panel 12 can be significantly improved, thereby ensuring the power generation efficiency of the photovoltaic panel 12. By making the support shaft 21 a hollow shaft, the support shaft 21 can be filled with cleaning fluid along the axial direction, thereby effectively cleaning the photovoltaic panel 12 from all directions.

[0032] Preferably, multiple liquid outlet holes 28 are evenly arranged in a spiral shape on the outer wall of the hollow shaft. This arrangement allows the cleaning liquid to be sprayed evenly on the surface of the photovoltaic panel 12, avoiding differences in the cleaning effect of the photovoltaic panel 12 due to uneven distribution of the cleaning liquid, and improving the overall cleaning quality of the photovoltaic panel 12.

[0033] Preferably, the pipe 5 is connected to the lower side of the support shaft 21. The cleaning fluid enters through the pipe 5 from the lower side of the support shaft 21. Under the influence of gravity, the cleaning fluid fills the support shaft 21 from the lower side to the higher side. This arrangement ensures uniform filling of the cleaning fluid within the hollow shaft, avoiding localized overfilling or underfilling, while also reducing bubble formation and improving cleaning efficiency and quality. Positioning the pipe 5 on the lower side of the support shaft 21 eliminates the need for a power unit to push the cleaning fluid through the support shaft, reducing the cost of the photovoltaic module cleaning device.

[0034] Furthermore, a seal is provided on the higher side of the support shaft 21. This design prevents the cleaning fluid from overflowing from the higher side of the support shaft 21, thus avoiding contamination of the external environment and reducing waste of the cleaning fluid.

[0035] The cleaning solution can be any existing liquid suitable for cleaning photovoltaic panels, and water is an option.

[0036] See Figure 6 and Figure 7 Preferably, the cleaning component 2 further includes two conical wheels 25, which are symmetrically fixed at both ends of the support shaft 21 and located outside the bearing seat 23. The cross-sectional area of ​​the conical wheels 25 gradually increases in the direction away from the roller brush 22. The conical wheels 25 can roll on the photovoltaic frame 11 to restrict the axial movement of the cleaning component 2 along the support shaft 21. The two conical wheels 25 rolling on the photovoltaic frame 11 allow the cleaning component 2 to roll relative to the length of the photovoltaic component 1 without damaging the photovoltaic panel 12; at the same time, the contact between the conical wheels 25 and the photovoltaic frame 11 is as follows: Figure 7 As shown in the point contact, at this contact position, the photovoltaic frame 11 can apply a force to the conical wheel 25 away from the roller brush 22. The symmetrical arrangement of the two conical wheels 25 allows the photovoltaic frame 11 to apply two opposite forces away from the roller brush 22 to both ends of the cleaning component 2, preventing the cleaning component 2 from shifting closer to the photovoltaic panel 12 when rolling along the length direction of the photovoltaic component 1, thereby ensuring the stable operation of the cleaning component 2 along the length direction of the photovoltaic component 1.

[0037] See Figure 1 , Figure 2 , Figure 5 and Figure 6 According to embodiments of this disclosure, the cleaning component 2 further includes two horn wheels 26, which are respectively fixedly disposed at both ends of the support shaft 21 and located outside the conical wheel 25, to restrict the cleaning component 2 from detaching from the photovoltaic module 1 along the axial direction of the support shaft 21. When the cleaning component 2 is displaced due to external force, the horn wheels 26 will contact the photovoltaic frame 11, thereby restricting the cleaning component 2 from moving axially along the support shaft 21 and preventing the cleaning component 2 from detaching from the photovoltaic module 1 due to external force. The horn wheels 26 are horn-shaped with an outward expansion, which can increase the contact area with the photovoltaic frame 11 and improve the stability of the cleaning component 2 on the photovoltaic module 1. At the same time, the arrangement of the horn wheels 26 can prevent the bearing seat 23, the conical wheel 25 and other structures from detaching from the support shaft 21, ensuring the integrity of the connection of the cleaning component 2.

[0038] See Figure 2 According to embodiments of this disclosure, the cleaning assembly 2 further includes two locking members 27, which are respectively installed at both ends of the support shaft 21 and located outside the horn wheel 26 to prevent the horn wheel 26 from disengaging from the cleaning assembly 2 along the axial direction of the support shaft 21. The locking members 27 secure the bearing 24, bearing seat 23, tapered wheel 25, and horn wheel 26 to the support shaft 21, preventing them from disengaging and ensuring the integrity of the cleaning assembly 2.

[0039] Optionally, the support shaft 21 has external threads at both ends along the axial direction, and the locking element 27 is a nut with external threads that mate with the external threads.

[0040] See Figure 1 According to embodiments of this disclosure, two connecting straps 4 are provided, and the two connecting straps 4 are respectively fixedly connected to both ends of the cleaning component 2. The provision of two connecting straps 4 ensures that the forces on both ends of the cleaning component 2 are the same, guaranteeing the stable operation of the cleaning component 2 along the length direction of the photovoltaic module 1. Specifically, the two connecting straps 4 are arranged parallel to each other and spaced apart on both sides of the photovoltaic module 1 along the axial direction of the support shaft 21.

[0041] See Figure 1 and Figure 5 According to an embodiment of this disclosure, the drive mechanism 3 includes a first motor 31, a linkage shaft 32, and two winding members 33. The first motor 31 is disposed on the photovoltaic frame 11. The linkage shaft 32 is connected to the first motor 31 in a transmission manner, and the axial direction of the linkage shaft 32 is perpendicular to the length direction of the photovoltaic module 1. The two winding members 33 are disposed at both ends of the linkage shaft 32 along the axial direction of the linkage shaft 32, and the two winding members 33 are rotatably connected to two connecting belts 4 respectively. The first motor 31, mounted on the photovoltaic frame 11, not only reduces the stress on the photovoltaic panel 12 but also transmits power to the linkage shaft 32, causing the linkage shaft 32 to rotate. The two winding parts 33 at both ends of the linkage shaft 32 also rotate with the linkage shaft 32. The connecting belt 4 is wound around the winding parts 33. When the winding parts 33 rotate, one end of the connecting belt 4 is wound around the winding parts 33, causing the connecting belt 4 and the cleaning component 2 fixed on the connecting belt 4 to move along the length of the photovoltaic module 1, thereby cleaning the photovoltaic panel 12 in all directions. The setting of the two winding parts 33 allows the linkage shaft 32 to drive the two winding parts 33 to rotate synchronously, thereby driving the two connecting belts 4 to move synchronously, ensuring that the two ends of the cleaning component 2 are subjected to the same force, and ensuring the stability of the cleaning component 2 when moving.

[0042] See Figure 1 and Figure 5 Furthermore, the drive mechanism 3 also includes a geared motor 34, which connects the first motor 31 and the linkage shaft 32. The geared motor 34 can convert the high-speed rotation of the first motor 31 into a low-speed rotation, thereby adjusting the movement speed of the cleaning component 2 and improving the stability of the movement of the cleaning component 2.

[0043] See Figure 5 and Figure 6 Furthermore, the drive mechanism 3 also includes a support base 35, which is mounted on the photovoltaic frame 11 and rotatably connected to both ends of the winding member 33. The support base 35 effectively supports the winding member 33, preventing the linkage shaft 32 and the winding member 33 from shaking during rotation, thus improving the stable operation of the cleaning component 2.

[0044] According to embodiments of this disclosure, the cleaning component 2 is capable of reciprocating along the length of the photovoltaic module 1. This reciprocating motion of the cleaning component 2 not only improves cleaning efficiency but also ensures thorough cleaning of the photovoltaic panel 12 surface, thereby enhancing the cleaning efficiency of the cleaning device.

[0045] In one embodiment, two drive mechanisms 3 are provided, respectively located on both sides of the photovoltaic frame 11 along the length of the photovoltaic module 1. The first motors 31 of the two drive mechanisms 3 drive in opposite directions, so that the two linkage shafts 32 rotate in opposite directions. The two ends of the connecting belt 4 are rotatably connected to a winding member 33 of one drive mechanism 3 and a winding member 33 of the other drive mechanism 3, respectively. By having the first motors 31 of the two drive mechanisms 3 drive in opposite directions, the two linkage shafts 32 rotate in opposite directions through the alternating operation of the two drive mechanisms 3, thereby driving the connecting belt 4 to move in opposite directions, so that the cleaning component 2 reciprocates along the length of the photovoltaic module 1.

[0046] Optionally, the two drive mechanisms 3 can be a first drive mechanism 3 and a second drive mechanism 3. When the first drive mechanism 3 is working, the linkage shaft 32 and the winding component 33 of the first drive mechanism 3 rotate, thereby driving the two connecting belts 4 to move. When the connecting belts 4 drive the cleaning component 2 from the first side of the photovoltaic module 1 to the second side, the first drive mechanism 3 stops working, and the second drive mechanism 3 starts working. The linkage shaft 32 and the winding component 33 of the second drive mechanism 3 rotate in the opposite direction to the rotation of the linkage shaft 32 and the winding component 33 of the first drive mechanism 3, so that the cleaning component 2 moves from the second side of the photovoltaic module 1 to the first side, realizing the reciprocating motion of the cleaning component 2.

[0047] See Figure 5 and Figure 6According to embodiments of this disclosure, the photovoltaic module cleaning device further includes a positioning component 6. The positioning component 6 includes a sensing plate 61, a sensing switch 63, and a second motor 64. The sensing plate 61 is disposed on the cleaning component 2 and has an insertion hole 62. The sensing switch 63 is disposed on the photovoltaic frame 11. The second motor 64 is disposed on the photovoltaic frame 11, and a positioning rod 65 is driven by the output shaft of the second motor 64. When the sensing switch 63 senses the passage of the sensing plate 61, the drive mechanism 3 stops moving, and the positioning rod 65 connected to the second motor 64 inserts into the insertion hole 62 to achieve positioning of the cleaning component 2. The sensing plate 61 is used to interact with the sensing switch 63 on the photovoltaic frame 11 when the cleaning component 2 moves. When the sensing plate 61 passes the sensing switch 63, the sensing switch 63 will emit a corresponding signal. When the cleaning component 2 moves to the induction switch 63 under the action of the connecting belt 4, the induction switch 63 senses the induction plate 61 on the cleaning component 2 and sends a signal to the first motor 31 and the second motor 64. The first motor 31 stops moving and applies the brake, and the second motor 64 drives the positioning rod 65 to insert into the socket 62 on the induction plate 61, thereby positioning the cleaning component 2 and preventing the cleaning component 2 from shaking or shifting due to external forces.

[0048] Optionally, the second motor 64 is a push rod motor.

[0049] As one embodiment, the sensing plate 61 is fixedly connected to the bearing housing 23. With this configuration, when the sensing plate 61 is positioned, the cleaning assembly 2 will also be positioned.

[0050] In one embodiment, the inductive switch 63 is fixedly connected to the positioning rod 65 via a connecting plate.

[0051] Furthermore, along the length of the photovoltaic module 1, induction plates 61 are fixedly installed on both sides of the bearing seat 23. This arrangement ensures that the cleaning component 2 is fixed on both sides of the photovoltaic frame 11 along the length of the photovoltaic module 1. Stop positions are provided on both sides of the photovoltaic module 1 along its length. When the cleaning component 2 moves to a stop position, the positioning component 6 positions the cleaning component 2.

[0052] Furthermore, positioning components 6 are installed at each of the four corners of the photovoltaic frame 11 to further improve the precise positioning of the cleaning components 2.

[0053] Optionally, the inductive switch 63 transmits signals to the first motor 31 and the second motor 64 via a wiring harness.

[0054] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A photovoltaic module cleaning device, wherein the photovoltaic module (1) comprises a photovoltaic frame (11) and a plurality of photovoltaic panels (12) mounted on the photovoltaic frame (11), characterized in that, The photovoltaic module cleaning device includes: Cleaning component (2), the cleaning component (2) is used to clean the photovoltaic panel (12); Drive mechanism (3), said drive mechanism (3) is disposed on the photovoltaic frame (11); and A connecting belt (4) extends along the length of the photovoltaic module (1). The connecting belt (4) is rotatably connected to the driving mechanism (3) and the cleaning component (2) is fixedly connected thereto. When the driving mechanism (3) drives the connecting belt (4) to move along the length of the photovoltaic module (1), the cleaning component (2) moves with the connecting belt (4) and rolls on the photovoltaic panel (12).

2. The photovoltaic module cleaning device according to claim 1, characterized in that, The cleaning component (2) includes: Support shaft (21); A roller brush (22) is disposed on the outer wall of the support shaft (21); Two bearing seats (23) are rotatably connected to both ends of the support shaft (21) via bearings (24), and the bearing seats (23) are fixedly connected to the connecting belt (4).

3. The photovoltaic module cleaning device according to claim 2, characterized in that, The cleaning assembly (2) also includes two conical wheels (25), which are symmetrically fixed at both ends of the support shaft (21) and located outside the bearing seat (23). The cross-sectional area of ​​the conical wheels (25) gradually increases in the direction away from the roller brush (22). The conical wheels (25) can roll on the photovoltaic frame (11) to restrict the axial movement of the cleaning assembly (2) along the support shaft (21).

4. The photovoltaic module cleaning device according to claim 3, characterized in that, The cleaning component (2) also includes two horn wheels (26), which are fixedly disposed at both ends of the support shaft (21) and located outside the conical wheel (25) to restrict the cleaning component (2) from detaching from the photovoltaic component (1) along the axial direction of the support shaft (21).

5. The photovoltaic module cleaning device according to claim 4, characterized in that, The cleaning assembly (2) also includes two locking members (27), which are respectively installed at both ends of the support shaft (21) and located outside the horn wheel (26) to restrict the horn wheel (26) from disengaging from the cleaning assembly (2) along the axial direction of the support shaft (21).

6. The photovoltaic module cleaning device according to any one of claims 1-5, characterized in that, Two connecting straps (4) are provided, and the two connecting straps (4) are respectively fixedly connected to both ends of the cleaning component (2).

7. The photovoltaic module cleaning device according to claim 6, characterized in that, The drive mechanism (3) includes: The first motor (31) is disposed on the photovoltaic frame (11). A linkage shaft (32) is connected to the first motor (31) for transmission, and the axial direction of the linkage shaft (32) is perpendicular to the length direction of the photovoltaic module (1); and Two winding elements (33) are arranged at both ends of the linkage shaft (32) along the axial direction of the linkage shaft (32), and the two winding elements (33) are rotatably connected to the two connecting belts (4) respectively.

8. The photovoltaic module cleaning device according to claim 7, characterized in that, The cleaning component (2) is capable of reciprocating along the length of the photovoltaic component (1).

9. The photovoltaic module cleaning device according to claim 8, characterized in that, Two drive mechanisms (3) are provided, and the two drive mechanisms (3) are respectively arranged on both sides of the photovoltaic frame (11) along the length direction of the photovoltaic module (1). The first motors (31) of the two drive mechanisms (3) have opposite driving directions, so that the rotation directions of the two linkage shafts (32) are opposite. The two ends of the connecting strip (4) are respectively rotatably connected to a winding (33) of one drive mechanism (3) and a winding (33) of another drive mechanism (3).

10. The photovoltaic module cleaning device according to any one of claims 1-5, characterized in that, The photovoltaic module cleaning device further includes a positioning component (6), which includes: A sensor plate (61) is disposed on the cleaning assembly (2) and has an insertion hole (62). Inductive switch (63), said inductive switch (63) is disposed on the photovoltaic frame (11); and The second motor (64) is mounted on the photovoltaic frame (11), and the output shaft of the second motor (64) is equipped with a positioning rod (65). When the induction switch (63) senses the passage of the induction plate (61), the drive mechanism (3) stops moving and the positioning rod (65) of the second motor (64) is inserted into the socket (62) to achieve positioning of the cleaning component (2).

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