Cleaning device for photovoltaic system

Abstract

The invention discloses a cleaning device for a photovoltaic system, the photovoltaic system is composed of a plurality of photovoltaic modules, each photovoltaic module comprises a photovoltaic panel unit and a support, the photovoltaic panel units are borne on the supports, the cleaning device comprises a driving motor, and control mechanisms, transmission mechanisms and water spraying frames which are matched with the photovoltaic modules in number, each water spraying frame is installed on a photovoltaic panel unit of each photovoltaic assembly in a sliding mode and connected with the corresponding transmission mechanism, each transmission mechanism is arranged on a support of each photovoltaic assembly, and each control mechanism is arranged between the driving motor and each transmission mechanism and controls connection and disconnection of the driving motor and each transmission mechanism. The structure is simple, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of solar photovoltaic power generation, and in particular to a cleaning device for a photovoltaic system. 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 effective power output. Existing cleaning robots require 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 panel's power generation. (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 cleaning device for a photovoltaic system with a simple structure and reduced costs.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A cleaning device for a photovoltaic system, wherein the photovoltaic system is composed of multiple photovoltaic modules, the photovoltaic modules including photovoltaic panel units and brackets, the photovoltaic panel units being carried on the brackets, the cleaning device including a drive motor and a control mechanism, a transmission mechanism and a water spray rack that match the number of photovoltaic modules, each of the water spray racks being slidably mounted on the photovoltaic panel unit of each photovoltaic module and connected to the corresponding transmission mechanism, each of the transmission mechanisms being arranged on the brackets of each photovoltaic module, and each of the control mechanisms being arranged between the drive motor and each transmission mechanism and controlling the connection and disconnection between the drive motor and each transmission mechanism.

[0006] As a further improvement of the above technical solution: The control mechanism includes an electromagnetic push rod and a transmission member. The transmission member is connected to the output end of the drive motor, and the electromagnetic push rod controls the connection between the transmission member and the corresponding transmission mechanism.

[0007] The transmission mechanism includes two steel rope groups and two reversing pulley groups. The two steel rope groups are connected to the water spray frame at the head and tail, and the connection points are located at the two ends of the water spray frame. The two reversing pulley groups are respectively arranged on the brackets at the front end of the photovoltaic component. The two steel rope groups are connected to the pulleys through the corresponding reversing pulley groups, and drive the water spray frame to move along the photovoltaic panel unit under the drive of the drive motor.

[0008] The wire rope group includes a wire rope and a fixed pulley. The fixed pulley is arranged on a bracket at the rear end of the photovoltaic component. One end of the wire rope is connected to the front end of one side of the spray frame, and the other end is connected to the rear end of the other side of the spray frame after being wound around the fixed pulley.

[0009] The reversing pulley group includes an upper pulley, a lower pulley and a reversing wheel. The two steel ropes are respectively wound on the upper pulley or the lower pulley of the two reversing pulley groups. The two steel ropes are reversed by the reversing wheel and then wound on the pulley.

[0010] The winding directions of the two steel ropes on the pulley are opposite.

[0011] The water spraying frame includes a support seat and a water spraying pipe. The support seat is slidably mounted on the photovoltaic panel unit and is connected to two steel ropes. The water spraying pipe is fixed on the support seat.

[0012] The support seat is provided with a roller which is slidably connected to the photovoltaic panel unit.

[0013] The support seat is also provided with a roller brush for cleaning the photovoltaic panel unit.

[0014] Compared with the prior art, the advantages of the present invention are: The cleaning device for a photovoltaic system of the present invention provides a water spray frame on each photovoltaic module and respectively provides a control mechanism to control the on and off of the transmission mechanism and the drive motor on each photovoltaic module. Only one drive motor is required to provide power for the water spray frames on multiple photovoltaic modules. There is no need to provide a separate drive device for each photovoltaic module, which greatly reduces the cost. The drive motor drives the transmission mechanism to drive the water spray frame to perform a simple linear reciprocating motion on the photovoltaic panel unit to spray water and flush, which greatly simplifies the structure of the cleaning device and further reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram (stereoscopic diagram) of the overall structure of the present invention.

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 It is a schematic diagram of the overall structure of the present invention (top view).

[0018] Figure 4 It is a schematic diagram of the overall structure of the present invention (side view).

[0019] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0020] The numbers in the figure represent: 1. Photovoltaic panel unit; 2. Bracket; 3. Drive motor; 4. Control mechanism; 41. Electromagnetic push rod; 42. Transmission member; 5. Transmission mechanism; 51. Wire rope group; 511. Wire rope; 512. Fixed pulley; 52. Reversing pulley group; 521. Upper pulley; 522. Lower pulley; 523. Reversing pulley; 6. Water spray rack; 61. Support seat; 611. Roller; 62. Water spray pipe; 7. Roller brush. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 5 As shown, the cleaning device for a photovoltaic system of this embodiment, the photovoltaic system is composed of a plurality of photovoltaic modules, the photovoltaic modules include a photovoltaic panel unit 1 and a bracket 2, the photovoltaic panel unit 1 is carried on the bracket 2, the cleaning device includes a drive motor 3 and a control mechanism 4, a transmission mechanism 5 and a water spray rack 6 that match the number of photovoltaic modules, each water spray rack 6 is slidably mounted on the photovoltaic panel unit 1 of each photovoltaic module and connected to the corresponding transmission mechanism 5, each transmission mechanism 5 is arranged on the bracket 2 of each photovoltaic module, and each control mechanism 4 is arranged between the drive motor 3 and each transmission mechanism 5, and controls the connection and disconnection between the drive motor 3 and each transmission mechanism 5. The present invention sets a water spray rack 6 on each photovoltaic module and sets a control mechanism 4 to control the on and off of the transmission mechanism 5 and the drive motor 3 on each photovoltaic module. Only one drive motor 3 is required to provide power for the water spray rack 6 on multiple photovoltaic modules. There is no need to set a separate drive device for each photovoltaic module, which greatly reduces the cost. The drive motor 3 drives the transmission mechanism 5 to drive the water spray rack 6 to perform a simple linear reciprocating motion on the photovoltaic panel unit 1 to spray water for flushing, which greatly simplifies the structure of the cleaning device and further reduces the production cost.

[0023] In this embodiment, the control mechanism 4 includes an electromagnetic push rod 41 and a transmission member 42. The transmission member 42 is connected to the output end of the drive motor 3, and the electromagnetic push rod 41 controls the connection between the transmission member 42 and the corresponding transmission mechanism 5. In this structure, the transmission member 42 is configured as a pulley and a belt. The pulley is mounted on the electromagnetic push rod 41, and the belt is wound between the pulley and the output end of the drive motor 3. The transmission mechanism 5 is connected to the pulley. The electromagnetic push rod 41 controls the rotation of the pulley, thereby controlling the power transmission between the transmission mechanism 5 and the drive motor 3. The structure is simple and the control is precise.

[0024] In this embodiment, the transmission mechanism 5 includes two steel cable assemblies 51 and two reversing pulley assemblies 52. The two steel cable assemblies 51 are connected to the water spray frame 6 at both ends, with the connection points located at the two ends of the water spray frame 6. The two reversing pulley assemblies 52 are respectively installed on the bracket 2 at the front end of the photovoltaic module. The two steel cable assemblies 51 are connected to the pulley 42 through the corresponding reversing pulley assemblies 52, and are driven by the drive motor 3 to drive the water spray frame 6 along the photovoltaic panel unit 1. In this structure, the water spray frame 6 is pulled by the two steel cable assemblies 42, eliminating the need for an additional rotating shaft for transmission. This further simplifies the structure, reduces costs, and facilitates installation.

[0025] In this embodiment, the wire rope assembly 51 includes a wire rope 511 and a fixed pulley 512. The fixed pulley 512 is mounted on the bracket 2 at the rear end of the photovoltaic module. One end of the wire rope 511 is connected to the front end of one side of the sprayer frame 6, and the other end is connected to the rear end of the other side of the sprayer frame 6 after being wound around the fixed pulley 512. The two wire ropes 511 are wound in opposite directions on the pulley 42. This arrangement ensures that when the drive motor 3 drives the corresponding pulley 42 to rotate, the wire ropes 511 on the front and rear ends of the sprayer frame 6 move in the same direction, resulting in a simple structure and ingenious design.

[0026] In this embodiment, the reversing pulley assembly 52 includes an upper pulley 521, a lower pulley 522, and a reversing pulley 523. Two steel ropes 511 are respectively wound around the upper pulley 521 of one reversing pulley assembly 52 and the lower pulley 522 of the other reversing pulley assembly 52. ​​The two steel ropes 511 are reversible by the reversing pulley 523 and then wound around the pulley 42. In this structure, the two steel ropes 511 cross each other on the two reversing pulley assemblies 52, so that the steel ropes 511 are subjected to balanced force when pulling the water spraying frame 6, maintaining smooth movement.

[0027] In this embodiment, the water spray frame 6 includes a support base 61 and a water spray pipe 62. The support base 61 is slidably mounted on the photovoltaic panel unit 1 and connected to two steel cables 511. The water spray pipe 62 is fixedly mounted on the support base 61. In this structure, a hole is drilled or a nozzle is installed in the water spray pipe 62 for simple and effective flushing and cleaning. The water spray pipe 62 is mounted on the support base 31 and driven by the support base 61 to move the water spray pipe 62 over the photovoltaic panel unit 1 for flushing and cleaning. The structure is simple and cost-effective.

[0028] In this embodiment, the support base 61 is provided with rollers 611 that are slidably connected to the photovoltaic panel unit 1. The rollers 611 are provided to facilitate movement.

[0029] In this embodiment, a roller brush 7 for cleaning the photovoltaic panel unit 1 is further provided on the support base 61. In this structure, the provision of the roller brush 7 improves the cleaning ability of the cleaning device and ensures the cleaning effect.

[0030] 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 cleaning device for a photovoltaic system, wherein the photovoltaic system is composed of a plurality of photovoltaic modules, wherein the photovoltaic modules include a photovoltaic panel unit (1) and a bracket (2), wherein the photovoltaic panel unit (1) is supported on the bracket (2), and wherein: The cleaning device comprises a driving motor (3) and a control mechanism (4), a transmission mechanism (5) and a water spray rack (6) that matches the number of photovoltaic modules. Each of the water spray racks (6) is slidably mounted on the photovoltaic panel unit (1) of each photovoltaic module and is connected to the corresponding transmission mechanism (5). Each of the transmission mechanisms (5) is arranged on the bracket (2) of each photovoltaic module. Each of the control mechanisms (4) is arranged between the driving motor (3) and each of the transmission mechanisms (5) and controls the connection and disconnection between the driving motor (3) and each of the transmission mechanisms (5).

2. The cleaning device for a photovoltaic system according to claim 1, characterized in that: The control mechanism (4) comprises an electromagnetic push rod (41) and a transmission member (42). The transmission member (42) is connected to the output end of the drive motor (3) and controls the connection between the transmission member (42) and the corresponding transmission mechanism (5) through the electromagnetic push rod (41).

3. The cleaning device for a photovoltaic system according to claim 2, characterized in that: The transmission mechanism (5) comprises two steel rope groups (51) and two reversing pulley groups (52). The two steel rope groups (51) are connected to the water spray frame (6) at their ends, and the connection points are located at both ends of the water spray frame (6). The two reversing pulley groups (52) are respectively arranged on the bracket (2) at the front end of the photovoltaic module. The two steel rope groups (51) are connected to the pulley (42) through the corresponding reversing pulley groups (52) and drive the water spray frame (6) to move along the photovoltaic panel unit (1) under the drive of the drive motor (3).

4. The cleaning device for a photovoltaic system according to claim 3, characterized in that: The steel wire rope group (51) comprises a steel wire rope (511) and a fixed pulley (512), wherein the fixed pulley (512) is arranged on a bracket (2) at the rear end of the photovoltaic module, and one end of the steel wire rope (511) is connected to the front end of one side of the water spray frame (6), and the other end is connected to the rear end of the other side of the water spray frame (6) after being wound around the fixed pulley (512).

5. The cleaning device for a photovoltaic system according to claim 4, characterized in that: The reversing pulley assembly (52) comprises an upper pulley (521), a lower pulley (522) and a reversing wheel (523). The two steel ropes (511) are respectively wound on the upper pulley (521) or the lower pulley (522) of the two reversing pulley assemblies (52). The two steel ropes (511) are reversing through the reversing wheel (523) and then wound around the pulley (42).

6. The cleaning device for a photovoltaic system according to claim 5, characterized in that: The two steel wire ropes (511) are wound on the pulley (42) in opposite directions.

7. The cleaning device for a photovoltaic system according to claim 6, characterized in that: The water spray frame (6) comprises a support base (61) and a water spray pipe (62), wherein the support base (61) is slidably mounted on the photovoltaic panel unit (1) and connected to two steel wire ropes (511), and the water spray pipe (62) is fixedly mounted on the support base (61).

8. The cleaning device for a photovoltaic system according to claim 7, characterized in that: The support seat (61) is provided with a roller (611) that is slidably connected to the photovoltaic panel unit (1).

9. The cleaning device for a photovoltaic system according to claim 8, characterized in that: The support seat (61) is also provided with a roller brush (7) for cleaning the photovoltaic panel unit (1).

Images