Cleaning device for photovoltaic system

Abstract

The invention discloses a cleaning device for a photovoltaic system, the photovoltaic system comprises photovoltaic panel units and a support, each photovoltaic panel unit is borne on the support and has a gradient, the front-back direction is defined as the X-axis direction, the left-right direction is defined as the Y-axis direction, and the up-down direction is defined as the Z-axis direction, the cleaning device comprises a water spraying frame, a transmission mechanism and a driving mechanism, the transmission mechanism is arranged in the Y-axis direction and connected with the water spraying frame, the driving mechanism is connected with the transmission mechanism, and the water spraying frame is provided with a water spraying pipe which is used for spraying water for cleaning and forms an inclination angle a with the slope surface of the photovoltaic panel unit (1). The device has the advantages of simple structure, low cost, high efficiency and good cleaning effect.

Description

Technical Field

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

[0002] Solar energy is the energy generated by the continuous nuclear fusion reaction process of sunspots inside or on the surface of the sun. Solar energy has the advantages of sufficient resources, long life, wide distribution, safety, cleanliness, and reliable technology. Since solar energy can be converted into various other forms of energy, its application range is very wide. To obtain electricity from solar energy, it is necessary to achieve photoelectric conversion through solar cells.

[0003] At present, many industrial and commercial rooftops are equipped with photovoltaic power generation systems. The photovoltaic system needs to be regularly cleaned of dust and dirt on the surface to avoid affecting its power generation efficiency. For existing cleaning robots, one cleaning robot cleans the entire area covered by photovoltaic modules, and it takes 3 to 5 days for one cleaning, with very low efficiency. The traditional cleaning method has a low cleaning frequency (cleaning once every few months), and the longer the cleaning interval, the more dust and dirt accumulate, resulting in a greater reduction in the power generation of photovoltaic modules (one month after cleaning in some areas, the power generation decreased by 50% or even more). At the same time, the longer the cleaning interval, the more difficult it is to clean the dust and dirt, so to ensure a clean cleaning, a higher level of intelligence of the robot is required, and most of the prices will be relatively expensive (several thousand to tens of thousands of yuan each). At the same time, the cleaning robot needs to be manually carried to and removed from the rooftop when in use and out of use, which is time-consuming and laborious. In order to better receive sunlight, the photovoltaic system needs to be inclined, and the sewage on the high part of the photovoltaic panel is likely to remain in the low part. 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, low cost, high efficiency, and good cleaning effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: A cleaning device for a photovoltaic system, the photovoltaic system includes a photovoltaic panel unit and a bracket, each photovoltaic panel unit is carried on the bracket and has a slope. Define the front-back direction as the X-axis direction, the left-right direction as the Y-axis direction, and the up-down direction as the Z-axis direction. The cleaning device includes a water spraying frame, a transmission mechanism, and a driving mechanism. The transmission mechanism is arranged along the Y-axis direction and is connected to the water spraying frame. The driving mechanism is connected to the transmission mechanism. The water spraying frame is provided with a water spraying pipe for water spraying and cleaning, and the water spraying pipe forms an inclination angle a with the slope of the photovoltaic panel unit (1).

[0006] As a further improvement of the above technical solution: The driving mechanism includes a driving motor, and the transmission mechanism is connected to the output end of the driving motor.

[0007] The transmission mechanism includes a belt, two rollers and two steel wire ropes. The two rollers are movably connected to both ends of the photovoltaic panel unit along the X axis. The two steel wire ropes are wound between the two rollers. One end of the belt is wound on the output end of the driving motor, and the other end is wound and connected to one of the two rollers. The water spraying frame is connected to the two steel wire ropes.

[0008] The water spraying frame further includes two support seats and a support frame. The two support seats are fixedly connected to both ends of the support frame and are respectively connected to a steel wire rope. The water spraying pipe is arranged inside the support frame.

[0009] The support frame includes a bottom plate and side plates bent on both sides of the bottom plate. The water spraying pipe is connected between the two side plates.

[0010] The bottom plate is bolted to the two support seats. The two side plates are perpendicular to the bottom plate. Angle pads are arranged between the support seats and the bottom plate.

[0011] A covering plate is further arranged on the support frame.

[0012] The bottom plate is bolted to the two support seats. The two side plates are arranged at an inclination angle with the bottom plate.

[0013] The support seat is provided with a bevel edge. The bottom plate is bolted to the bevel edge. The two side plates are perpendicular to the bottom plate.

[0014] The support frame includes a bottom plate and side plates bent on both sides of the bottom plate. An inclined plate is bent on the bottom plate. The water spraying pipe is connected to the inclined plate.

[0015] The bottom of the support seat is provided with rollers that are in rolling connection with the surface of the photovoltaic panel unit.

[0016] The bottom of the support seat is further provided with limit wheels that are in rolling connection with the side surface of the photovoltaic panel unit.

[0017] The top of the support seat is provided with positioning wheels that are in rolling connection with the steel wire ropes.

[0018] The support frame is arranged at an angle with the X axis, and the intersection point is located at the lower end of the X axis.

[0019] Compared with the prior art, the advantages of the present invention are as follows: The cleaning device for the photovoltaic system of the present invention drives the transmission mechanism through the driving mechanism to drive the water spray frame to perform a simple reciprocating motion along the Y-axis direction to wash the photovoltaic panel unit, which greatly simplifies the structure of the cleaning device and reduces the cost. The cleaning device can be always available on the roof photovoltaic system and does not require manual transportation back and forth, thus saving time and effort and improving efficiency. In addition, the water spray pipe is arranged at an angle to the slope of the photovoltaic panel unit, so that the water flow sprayed from the water spray pipe forms an angle, resulting in a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram (stereoscopic diagram) of the overall structure of Example 1 of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present invention (top view).

[0022] Figure 3 It is a schematic diagram of the overall structure of Example 1 of the present invention (front view).

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0024] Figure 5 It is a schematic diagram of the overall structure of Example 2 of the present invention (front view).

[0025] Figure 6 It is a schematic diagram of the overall structure of Example 3 of the present invention (front view).

[0026] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0027] Figure 8 It is a schematic diagram of the overall structure of Example 4 of the present invention (front view).

[0028] Figure 9 yes Figure 8 Enlarged view of point C in the middle.

[0029] Figure 10 It is a schematic diagram of the overall structure of Example 5 of the present invention (front view).

[0030] Figure 11 yes Figure 10 Enlarged view of point D in the middle.

[0031] The symbols in the figure represent: 1. Photovoltaic panel unit; 2. Bracket; 3. Spray rack; 31. Spray pipe; 32. Support seat; 321. Bevel; 322. Roller; 323. Limit wheel; 324. Positioning wheel; 33. Support rack; 331. Bottom plate; 332. Side plate; 333. Inclined plate; 34. Angle pad; 35. Cover plate; 4. Transmission mechanism; 41. Belt; 42. Drum; 43. Wire rope; 5. Driving mechanism; 51. Driving motor. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Embodiment 1: like Figures 1 to 4 As shown, the first embodiment of the cleaning device for photovoltaic system of the present invention, the photovoltaic system comprises a photovoltaic panel unit 1 and a bracket 2, each photovoltaic panel unit 1 is carried on the bracket 2 and has a slope, the front-back direction is defined as the X-axis direction, the left-right direction is defined as the Y-axis direction, and the up-down direction is defined as the Z-axis direction, the cleaning device comprises a water spraying frame 3, a transmission mechanism 4 and a driving mechanism 5, the transmission mechanism 4 is arranged along the Y-axis direction and connected to the water spraying frame 3, the driving mechanism 5 is connected to the transmission mechanism 4, and the water spraying frame 3 is provided with a water spraying pipe 31 for water spraying and cleaning and forming an inclination angle a with the slope of the photovoltaic panel unit. The present invention drives the transmission mechanism 4 to drive the water spraying frame 3 to perform a simple reciprocating motion along the Y-axis direction to wash the photovoltaic panel unit 1 through the driving mechanism 5, which greatly simplifies the structure of the cleaning device, reduces the cost, and can be always available on the roof photovoltaic system, does not need to be manually carried back and forth, saves time and effort, and improves efficiency, and the water spraying pipe 31 is arranged at an inclination angle with the slope of the photovoltaic panel unit, so that the water flow sprayed by the water spraying pipe 31 forms an angle, and the cleaning effect is better.

[0034] In this embodiment, the driving mechanism 5 includes a driving motor 51, and the transmission mechanism 4 is connected to the output end of the driving motor 51. The driving is performed by the driving motor 51, which is stable and reliable.

[0035] In this embodiment, the transmission mechanism 4 includes a belt 41, two rollers 42 and two steel wires 43. The two rollers 42 are movably connected to the two end sides of the photovoltaic panel unit 1 along the X-axis direction. The two steel wires 43 are wound between the two rollers 42. One end of the belt 41 is wound on the output end of the driving motor 51, and the other end is wound and connected with one of the two rollers 42. The water spraying frame 3 is connected with the two steel wires 43. In this structure, the driving motor 51 drives one roller 42 to rotate through the belt 41, so that the steel wire 43 wound between the two rollers 42 drives the water spraying frame 3 to move. The structure is simple and the transmission is stable.

[0036] In this embodiment, the water spraying frame 3 further includes two support seats 32 and a support frame 33. The two support seats 32 are fixedly connected to both ends of the support frame 33 and are respectively connected to a steel wire rope 43, and the water spraying pipe 31 is arranged inside the support frame 33. Its structure is simple.

[0037] In this embodiment, the support frame 33 includes a bottom plate 331 and side plates 332 bent on both sides of the bottom plate 331. The water spraying pipe 31 is connected between the two side plates 332. The bottom plate 331 is bolted to the two support seats 32. The two side plates 332 are perpendicular to the bottom plate 331, and an angle cushion block 34 is arranged between the support seat 32 and the bottom plate 331. In this structure, the bottom plate 331 is bolted to the support seat 32, and the connection is stable. The angle cushion block 34 is arranged to incline the bottom plate 331, so that the water spraying pipe 31 sprays water flow with an inclination angle. Its design is ingenious.

[0038] In this embodiment, the bottom of the support seat 32 is provided with rollers 322 that are in rolling connection with the surface of the photovoltaic panel unit 1. In this structure, the rollers 322 are arranged to facilitate movement.

[0039] In this embodiment, the bottom of the support seat 32 is further provided with limit wheels 323 that are in rolling connection with the side surface of the photovoltaic panel unit 1. In this structure, due to the slope of the roof, the limit wheels 323 prevent the water spraying frame 3 from falling.

[0040] In this embodiment, the top of the support seat 32 is provided with a positioning wheel 324 that is in rolling connection with the steel wire rope 43. In this structure, the positioning wheel 324 is arranged to prevent the steel wire rope 43 from sagging too long and interfering with other components.

[0041] In this embodiment, the support frame 33 is arranged at an angle with the X axis, and the intersection point is located at the lower end of the X axis. In this structure, by setting it like this, the roof peak is cleaned first and the bottom of the slope is cleaned later, so that the sewage flowing down from the peak can be washed away, avoiding the residue of sewage at the bottom of the slope, and further improving the cleaning effect.

[0042] Embodiment 2: As Figure 5 shown, the second embodiment of the cleaning device for a photovoltaic system according to the present invention is basically the same as Embodiment 1, and the only difference is that: In this embodiment, a covering plate 35 is further arranged on the support frame 33. In this structure, by arranging the covering plate 35, direct sunlight on the water spraying pipe 31 is avoided, and the service life of the water spraying pipe 31 is prolonged.

[0043] Embodiment 3: As Figure 6 and Figure 7 shown, the third embodiment of the cleaning device for a photovoltaic system according to the present invention is basically the same as Embodiment 1, and the only difference is that: In this embodiment, the bottom plate 331 is bolted to the two support seats 32, and the two side plates 332 are arranged at an inclination angle with respect to the bottom plate 331. In this structure, by arranging the side plates 332 obliquely on the bottom plate 331, the water spray pipe 31 connected between the two side plates 332 sprays out a water flow with an inclination angle, and its structure is simple and ingeniously designed.

[0044] Embodiment 4: As Figure 8 and Figure 9 shown, the fourth embodiment of the cleaning device for a photovoltaic system according to the present invention is basically the same as Embodiment 1, and the only difference is that: In this embodiment, a bevel edge 321 is provided on the support seat 32, the bottom plate 331 is bolted to the bevel edge 321, and the two side plates 332 are perpendicular to the bottom plate 331. In this structure, a bevel edge is provided on the support seat 321, so that the water spray pipe 31 sprays out a water flow with an inclination angle, and its structure is simple and ingeniously designed.

[0045] Embodiment 5: As Figure 10 and Figure 11 shown, the fifth embodiment of the cleaning device for a photovoltaic system according to the present invention is basically the same as Embodiment 1, and the only difference is that: In this embodiment, the support frame 33 includes a bottom plate 331 and side plates 332 bent on both sides of the bottom plate 331. An inclined plate 333 is bent on the bottom plate 331, and the water spray pipe 31 is connected to the inclined plate 333. In this structure, the inclined plate 333 is formed on the bottom plate 331, so that the water spray pipe 31 connected between the two side plates 332 sprays out a water flow with an inclination angle, and its structure is simple and ingeniously designed.

[0046] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the above-disclosed technical content, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from 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, the photovoltaic system comprising a photovoltaic panel unit (1) and a bracket (2), each photovoltaic panel unit (1) being supported on the bracket (2) and having a slope, wherein the front-to-back direction is defined as an X-axis direction, the left-to-right direction is defined as a Y-axis direction, and the up-down direction is defined as a Z-axis direction, and the device is characterized in that: The cleaning device comprises a water spray frame (3), a transmission mechanism (4) and a drive mechanism (5); the transmission mechanism (4) is arranged along the Y-axis direction and connected to the water spray frame (3); the drive mechanism (5) is connected to the transmission mechanism (4); and the water spray frame (3) is provided with a water spray pipe (31) for water spray cleaning and which forms an inclination angle a with the slope of the photovoltaic panel unit (1).

2. The cleaning device for a photovoltaic system according to claim 1, characterized in that: The driving mechanism (5) comprises a driving motor (51), and the transmission mechanism (4) is connected to an output end of the driving motor (51).

3. The cleaning device for a photovoltaic system according to claim 2, characterized in that: The transmission mechanism (4) comprises a belt (41), two rollers (42) and two steel wires (43); the two rollers (42) are movably connected to the two end sides of the photovoltaic panel unit (1) along the X-axis direction; the two steel wires (43) are wound between the two rollers (42); one end of the belt (41) is wound on the output end of the drive motor (51) and the other end is wound and connected to one of the two rollers (42); and the water spray frame (3) is connected to the two steel wires (43).

4. The cleaning device for a photovoltaic system according to claim 3, characterized in that: The water spray frame (3) further comprises two support seats (32) and a support frame (33), wherein the two support seats (32) are fixedly connected to two ends of the support frame (33) and are respectively connected to a steel wire rope (43), and the water spray pipe (31) is arranged in the support frame (33).

5. The cleaning device for a photovoltaic system according to claim 4, characterized in that: The support frame (33) comprises a bottom plate (331) and side plates (332) bent at two sides of the bottom plate (331), and the water spray pipe (31) is connected between the two side plates (332).

6. The cleaning device for a photovoltaic system according to claim 5, characterized in that: The bottom plate (331) is bolted to the two support seats (32); the two side plates (332) are perpendicular to the bottom plate (331); and an angle pad (34) is provided between the support seat (32) and the bottom plate (331).

7. The cleaning device for a photovoltaic system according to claim 6, characterized in that: A covering plate (35) is also provided on the support frame (33).

8. The cleaning device for a photovoltaic system according to claim 5, characterized in that: The bottom plate (331) is bolted to the two support seats (32), and the two side plates (332) are arranged at an inclined angle to the bottom plate (331).

9. The cleaning device for a photovoltaic system according to claim 5, characterized in that: The support seat (32) is provided with a bevel (321), the bottom plate (331) is bolted to the bevel (321), and the two side plates (332) are perpendicular to the bottom plate (331).

10. The cleaning device for a photovoltaic system according to claim 4, characterized in that: The support frame (33) comprises a bottom plate (331) and side plates (332) bent on both sides of the bottom plate (331); an inclined plate (333) is bent on the bottom plate (331); and the water spray pipe (31) is connected to the inclined plate (333).

11. The cleaning device for a photovoltaic system according to any one of claims 4 to 10, characterized in that: A roller (322) is provided at the bottom of the support seat (32) and is rollingly connected to the surface of the photovoltaic panel unit (1).

12. The cleaning device for a photovoltaic system according to claim 11, characterized in that: The bottom of the support seat (32) is also provided with a limiting wheel (323) which is rollingly connected to the side of the photovoltaic panel unit (1).

13. The cleaning device for a photovoltaic system according to claim 12, characterized in that: A positioning wheel (324) which is rollingly connected to the steel wire rope (43) is provided on the top of the support seat (32).

14. The cleaning device for a photovoltaic system according to claim 13, characterized in that: The support frame (33) is arranged at an angle with the X-axis direction, and the intersection point is located at the lower end of the X-axis direction.

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