Photovoltaic system cleaning device

Abstract

The invention discloses a photovoltaic system cleaning device which comprises a photovoltaic panel unit and a support, the photovoltaic panel unit is borne on the support, the cleaning device comprises a water spraying frame and a driving mechanism, the water spraying frame is installed on the photovoltaic panel unit in a sliding mode, and the water spraying frame is connected with the driving mechanism and driven by the driving mechanism to move along the photovoltaic panel unit. The water spraying frame is further provided with a rolling brush assembly which synchronously rotates along with movement of the water spraying frame so as to clean the photovoltaic panel unit. The cleaning device has the advantages of simple structure, cost reduction and good cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of solar photovoltaic power generation, and in particular to a photovoltaic system cleaning device. Background Art

[0002] Solar energy is generated by the continuous nuclear fusion reactions within or on the surface of the sunspots. Solar energy boasts abundant resources, longevity, widespread distribution, safety, cleanliness, and reliable technology. Because solar energy can be converted into a variety of other forms of energy, it has a wide range of applications. To generate electricity from solar energy, solar cells perform photoelectric conversion.

[0003] Many commercial and industrial rooftops are currently equipped with photovoltaic power generation systems. These systems require regular cleaning of dust and dirt to prevent them from affecting their power output. Existing cleaning robots can take three to five days to clean the entire area covered by photovoltaic panels, making them inefficient. Traditional cleaning methods are infrequent (occasionally cleaning every few months). However, the longer the interval between cleanings, the more dust and dirt accumulate, reducing the panels' power output (in some areas, power generation decreased by 50% or more just one month after cleaning). Furthermore, the longer the cleaning interval, the more difficult it is to remove dust and dirt. Therefore, ensuring thorough cleaning requires a higher level of intelligence in the robot, which in turn leads to a higher price tag (ranging from several thousand to tens of thousands of yuan). Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a photovoltaic system cleaning device with a simple structure, reduced costs and good cleaning effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A photovoltaic system cleaning device, the photovoltaic system includes a photovoltaic panel unit and a bracket, the photovoltaic panel unit is carried on the bracket, the cleaning device includes a water spray frame and a driving mechanism, the water spray frame is slidably mounted on the photovoltaic panel unit, the water spray frame is connected to the driving mechanism and moves along the photovoltaic panel unit under the drive of the driving mechanism, and the water spray frame is also provided with a roller brush assembly that rotates synchronously with the movement of the water spray frame to clean the photovoltaic panel unit.

[0006] As a further improvement of the above technical solution: The water spray frame includes a support base and a water spray pipe. The support base is slidably mounted on the photovoltaic panel unit and connected to the driving mechanism. The water spray pipe is installed on the support base.

[0007] The driving mechanism includes a driving motor and two steel rope groups. The two steel rope groups are connected to the support base at their ends, and the connection points are located at both ends of the water spray frame. The two steel rope groups are wound on the output end of the driving motor and, driven by the driving motor, drive the support base to move along the photovoltaic panel unit.

[0008] The winding directions of the two steel rope groups on the output end of the driving motor are opposite.

[0009] The wire rope group includes a wire rope and a fixed pulley. The fixed pulley is arranged on the bracket at the rear end of the photovoltaic system. One end of the wire rope is connected to the front end of one side of the support seat, and the other end is connected to the rear end of the other side of the support seat after being wound around the fixed pulley.

[0010] The cleaning device also includes two reversing pulley groups, which are respectively arranged on the bracket at the front end of the photovoltaic system. The reversing pulley groups include an upper pulley and a lower pulley. The two steel ropes are respectively wound on the upper pulley or the lower pulley of the two reversing pulley groups.

[0011] The support seat is provided with a roller which is slidably connected to the photovoltaic panel unit.

[0012] The cleaning device also includes a transmission mechanism, and the roller brush assembly includes a rotating shaft and a roller brush. The rotating shaft is movably connected to the support seat, and the roller brush is fixed on the rotating shaft. The rotating shaft is connected to the transmission mechanism and keeps synchronous rotation with the roller through the transmission mechanism.

[0013] The transmission mechanism includes two transmission wheels, two transmission steel ropes and four columns. The two transmission wheels are fixedly mounted on the two ends of the rotating shaft. The columns are arranged on the two ends of the brackets on both sides of the photovoltaic system. The two transmission steel ropes are arranged on the corresponding two columns along the moving direction of the support seat and wound on the corresponding transmission wheels.

[0014] The transmission mechanism includes two transmission wheels, a transmission steel wire rope, four columns and a reversing wheel arranged on each column. The two transmission wheels are fixedly mounted on the two ends of the rotating shaft. Each column is arranged on the two ends of the brackets on both sides of the photovoltaic system. The transmission steel wire rope is connected end to end and wound around each reversing wheel. The transmission steel wire rope is wound around the output end of the drive motor and is wound and connected to the corresponding transmission wheel.

[0015] Compared with the prior art, the advantages of the present invention are: The photovoltaic system cleaning device of the present invention drives the water spray frame to perform simple linear reciprocating motion on the photovoltaic panel unit through a driving mechanism to spray water and flush, which greatly simplifies the structure of the cleaning device and reduces the production cost. In addition, by arranging a roller brush assembly on the water spray frame, the roller brush assembly rotates synchronously with the movement of the water spray frame to clean the photovoltaic panel unit. The roller brush assembly, in combination with the water spray and flushing, can effectively clean the stains on the photovoltaic panel unit, greatly improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention (top view).

[0017] Figure 2 It is a schematic diagram (stereoscopic diagram) of the overall structure of Example 1 of the present invention.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a schematic diagram of the steel wire rope connection of Example 1 of the present invention.

[0020] Figure 5 It is a schematic diagram (stereoscopic diagram) of the overall structure of Example 2 of the present invention.

[0021] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0022] The numbers in the figure represent: 1. Photovoltaic panel unit; 2. Bracket; 3. Spray rack; 31. Support base; 311. Roller; 32. Spray pipe; 4. Driving mechanism; 41. Driving motor; 42. Wire rope group; 421. Wire rope; 422. Fixed pulley; 5. Roller brush assembly; 51. Rotating shaft; 52. Roller brush; 6. Reversing pulley group; 61. Upper pulley; 62. Lower pulley; 7. Transmission mechanism; 71. Transmission wheel; 72. Transmission wire rope; 73. Column; 74. Reversing wheel. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1: like Figures 1 to 4As shown, a first embodiment of the photovoltaic system cleaning device of the present invention comprises a photovoltaic system including a photovoltaic panel unit 1 and a bracket 2, wherein the photovoltaic panel unit 1 is supported on the bracket 2, and a cleaning device including a water spray frame 3 and a drive mechanism 4, wherein the water spray frame 3 is slidably mounted on the photovoltaic panel unit 1, the water spray frame 3 is connected to the drive mechanism 4 and moves along the photovoltaic panel unit 1 under the drive of the drive mechanism 4, and is further provided with a roller brush assembly 5 which rotates synchronously with the movement of the water spray frame 3 to clean the photovoltaic panel unit 1. The present invention uses the drive mechanism 4 to drive the water spray frame 3 to perform a simple linear reciprocating motion on the photovoltaic panel unit 1 to spray and flush, thereby greatly simplifying the structure of the cleaning device and reducing the manufacturing cost. In addition, by providing the roller brush assembly 5 on the water spray frame 3, the roller brush assembly 5 rotates synchronously with the movement of the water spray frame 3 to clean the photovoltaic panel unit 1. The roller brush assembly 5, in combination with the water spray and flushing, can effectively clean the stains on the photovoltaic panel unit 1, thereby greatly improving the cleaning effect.

[0025] In this embodiment, the water spray frame 3 includes a support base 31 and a water spray pipe 32. The support base 31 is slidably mounted on the photovoltaic panel unit 1 and connected to the drive mechanism 4. The water spray pipe 32 is mounted on the support base 31. In this structure, a hole is drilled or a nozzle is installed in the water spray pipe 32 for simple and effective flushing and cleaning. The water spray pipe 32 is mounted on the support base 31, and the support base 31 drives the water spray pipe 32 to move over the photovoltaic panel unit 1 for flushing and cleaning. The structure is simple and cost-effective.

[0026] In this embodiment, the drive mechanism 4 includes a drive motor 41 and two steel cable groups 42. The two steel cable groups 42 are connected end to end to the support base 31, with the connection points located at the two ends of the water spray frame 3. The two steel cable groups 42 are wound around the output end of the drive motor 41 and, driven by the drive motor 41, drive the support base 31 to move along the photovoltaic panel unit 1. In this structure, the support base 31 is pulled by the two steel cable groups 42 wound around the drive motor 41 to move, eliminating the need for an additional rotating shaft for transmission, further simplifying the structure, reducing costs, and facilitating installation.

[0027] In this embodiment, the two steel rope groups 42 are wound in opposite directions on the output end of the drive motor 41. The steel rope group 42 includes a steel rope 421 and a fixed pulley 422. The fixed pulley 422 is disposed on the bracket 2 at the rear end of the photovoltaic system. One end of the steel rope 421 is connected to the front end of one side of the support base 31, and the other end is connected to the rear end of the other side of the support base 31 after being wound around the fixed pulley 422. In this structure, the two steel ropes 421 are wound in opposite directions on the output end of the drive motor 41, so that when the drive motor 41 is running, the two steel ropes 421 move in opposite directions. The steel ropes 421 are reversed by the fixed pulley 422, so that the two steel ropes 421 on the front and rear ends of one side of the support base 31 move in the same direction. The structure is simple and the design is ingenious.

[0028] In this embodiment, the cleaning device further includes two reversing pulley sets 6, which are respectively arranged on the bracket 2 at the front end of the photovoltaic system. The reversing pulley sets 6 include an upper pulley 61 and a lower pulley 62. The two steel wire ropes 421 are respectively wound around the upper pulley 61 or the lower pulley 62 of the two reversing pulley sets 6. In this embodiment, the steel wire ropes 421 are wound around the upper pulley 61 of one reversing pulley set 6 and the lower pulley 62 of the other pulley set 6. The two steel wire ropes 421 cross on the two reversing pulley sets 6. This arrangement ensures that the steel wire ropes 421 are subjected to balanced force when pulling the support base 31, maintaining stable movement of the support base 31.

[0029] In this embodiment, the support base 31 is provided with a roller 311 that is slidably connected to the photovoltaic panel unit 1. The roller 311 is slidably connected to the photovoltaic panel unit 1 to facilitate movement.

[0030] In this embodiment, the cleaning device further includes a transmission mechanism 7. The roller brush assembly 5 includes a rotating shaft 51 and a roller brush 52. The rotating shaft 51 is movably connected to the support base 31, and the roller brush 52 is fixedly mounted on the rotating shaft 51. The rotating shaft 51 is connected to the transmission mechanism 7 and rotates synchronously with the roller 311 through the transmission mechanism 7. In this structure, the transmission mechanism 7 drives the rotating shaft 51 and the roller 311 to rotate synchronously, thereby driving the roller brush 52 to rotate and clean the photovoltaic panel unit 1. The structure is simple and easy to install.

[0031] In this embodiment, the transmission mechanism 7 includes two transmission wheels 71, two transmission wire ropes 72, and four columns 73. The two transmission wheels 71 are fixedly mounted at the two ends of the rotating shaft 51, and the columns 73 are arranged at the two ends of the brackets 2 on both sides of the photovoltaic system. The two transmission wire ropes 72 are arranged on the corresponding two columns 73 along the movement direction of the support base 31 and are wound around the corresponding transmission wheels 71. In this structure, because the transmission wire ropes 72 are fixed between the two columns 73, when the support base 31 reciprocates, the friction generated between the transmission wire ropes 72 and the transmission wheels 71 drives the transmission wheels 71 to rotate, thereby driving the roller brush 52 to rotate. The structure is simple and the design is ingenious, and no additional drive device is required to drive the roller brush 52 to rotate.

[0032] Example 2: like Figure 5 and Figure 6 As shown, the second embodiment of the photovoltaic system cleaning device of the present invention is basically the same as the first embodiment, except that: In this embodiment, the transmission mechanism 7 includes two transmission wheels 71, a transmission wire rope 72, four columns 73, and a reversing wheel 74 mounted on each column 73. The two transmission wheels 71 are fixedly mounted at the ends of the rotating shaft 51, and each column 73 is mounted at each end of the brackets 2 on either side of the photovoltaic system. The transmission wire ropes 72 are connected end to end and wound around each reversing wheel 74. The transmission wire ropes 72 are wound around the output end of the drive motor 41 and are connected to the corresponding transmission wheel 71. In this structure, the drive motor 41 drives the transmission wire ropes 72 to move, thereby driving the roller brush 52 to rotate synchronously. The structure is simple and the design is ingenious, and no additional drive device is required to drive the roller brush 52 to rotate.

[0033] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A photovoltaic system cleaning device, the photovoltaic system comprising a photovoltaic panel unit (1) and a bracket (2), the photovoltaic panel unit (1) being supported on the bracket (2), characterized in that: The cleaning device comprises a water spray frame (3) and a driving mechanism (4); the water spray frame (3) is slidably mounted on the photovoltaic panel unit (1); the water spray frame (3) is connected to the driving mechanism (4) and moves along the photovoltaic panel unit (1) under the drive of the driving mechanism (4); and a roller brush assembly (5) is further provided on the water spray frame (3) for synchronously rotating with the movement of the water spray frame (3) to clean the photovoltaic panel unit (1).

2. The photovoltaic system cleaning device according to claim 1, characterized in that: The water spray frame (3) comprises a support base (31) and a water spray pipe (32); the support base (31) is slidably mounted on the photovoltaic panel unit (1) and connected to the driving mechanism (4); and the water spray pipe (32) is mounted on the support base (31).

3. The photovoltaic system cleaning device according to claim 2, characterized in that: The driving mechanism (4) includes a driving motor (41) and two steel rope groups (42). The two steel rope groups (42) are connected to the support base (31) at their ends, and the connection points are located at both ends of the water spray frame (3). The two steel rope groups (42) are wound on the output end of the driving motor (41) and, driven by the driving motor (41), drive the support base (31) to move along the photovoltaic panel unit (1).

4. The photovoltaic system cleaning device according to claim 3, characterized in that: The winding directions of the two steel wire rope groups (42) on the output end of the driving motor (41) are opposite.

5. The photovoltaic system cleaning device according to claim 4, characterized in that: The steel wire rope group (42) comprises a steel wire rope (421) and a fixed pulley (422), wherein the fixed pulley (422) is arranged on the bracket (2) at the rear end of the photovoltaic system, and one end of the steel wire rope (421) is connected to the front end of one side of the support seat (31), and the other end is connected to the rear end of the other side of the support seat (31) after being wound around the fixed pulley (422).

6. The photovoltaic system cleaning device according to claim 5, characterized in that: The cleaning device further comprises two reversing pulley assemblies (6), the two reversing pulley assemblies (6) being respectively arranged on a bracket (2) at the front end of the photovoltaic system, the reversing pulley assemblies (6) comprising an upper pulley (61) and a lower pulley (62), and the two steel wire ropes (421) being respectively wound on the upper pulley (61) or the lower pulley (62) of the two reversing pulley assemblies (6).

7. The photovoltaic system cleaning device according to claim 6, characterized in that: The support seat (31) is provided with a roller (311) that is slidably connected to the photovoltaic panel unit (1).

8. The photovoltaic system cleaning device according to claim 7, characterized in that: The cleaning device further comprises a transmission mechanism (7), the roller brush assembly (5) comprises a rotating shaft (51) and a roller brush (52), the rotating shaft (51) is movably connected to the support seat (31), the roller brush (52) is fixed on the rotating shaft (51), the rotating shaft (51) is connected to the transmission mechanism (7), and rotates synchronously with the roller (311) through the transmission mechanism (7).

9. The photovoltaic system cleaning device according to claim 8, characterized in that: The transmission mechanism (7) includes two transmission wheels (71), two transmission steel wire ropes (72) and four columns (73). The two transmission wheels (71) are fixedly mounted on the two ends of the rotating shaft (51). The columns (73) are arranged on the two ends of the brackets (2) on both sides of the photovoltaic system. The two transmission steel wire ropes (72) are arranged on the corresponding two columns (73) along the moving direction of the support seat (31) and are wound on the corresponding transmission wheels (71).

10. The photovoltaic system cleaning device according to claim 8, characterized in that: The transmission mechanism (7) includes two transmission wheels (71), a transmission steel wire rope (72), four columns (73) and a reversing wheel (74) arranged on each column (73). The two transmission wheels (71) are fixedly mounted on the two ends of the rotating shaft (51). Each column (73) is arranged on the two ends of the brackets (2) on both sides of the photovoltaic system. The transmission steel wire rope (72) is connected end to end and is wound around each reversing wheel (74). The transmission steel wire rope (72) is wound around the output end of the drive motor (41) and is wound and connected to the corresponding transmission wheel (71).

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