Cleaning device and system for cleaning photovoltaic power generation panel

Abstract

The invention provides a cleaning device and system for cleaning a photovoltaic power generation panel. The cleaning device and system are used for solving the problem that in the prior art, the photovoltaic power generation panel cannot be cleaned thoroughly. Comprising a rainwater collecting mechanism, a cleaning mechanism and a driving mechanism; the rainwater collecting mechanism is used for collecting rainwater, and the driving mechanism is used for driving the cleaning mechanism to move to clean the photovoltaic power generation panel; by arranging the rainwater collecting mechanism, rainwater is collected for use when the photovoltaic power generation panel is cleaned, and the cleaning cost of the cleaning device is reduced; in addition, during cleaning, a spray head and a scraper move together, that is, when the spray head sprays water, the scraper cleans the top face of the photovoltaic power generation panel, water spraying and cleaning are carried out at the same time, and the cleaning efficiency is improved. And the scraper is adopted to clean the photovoltaic power generation panel, so that dirt such as bird droppings or oil stains can be cleaned up.

Description

Technical Field

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

[0002] Photovoltaic panels are devices that convert sunlight into electricity. Their core function is to convert light energy into electricity through the photovoltaic effect. When in use, photovoltaic panels are usually installed outdoors for a long time, such as on hillsides, rooftops, or even in the desert. Due to being in the outdoor environment for a long time, dust, leaves, etc. in the environment will adhere to the photovoltaic panels, blocking the photovoltaic panels from absorbing sunlight and reducing the working efficiency of the photovoltaic panels. Therefore, it is necessary to clean the power generation surface of the photovoltaic panels in time to ensure the working efficiency of the photovoltaic panels.

[0003] There is a device on the market that uses drones to clean photovoltaic panels, such as the Chinese utility model patent with patent announcement number: CN218112978U. Although this device can clean photovoltaic panels to a certain extent, the drone is limited by the control experience of the drone operator during operation. If the operation is improper, the photovoltaic panels will not be cleaned properly, and even the photovoltaic panels or the drone will be damaged. In addition, the drone cleaning device cannot clean stains such as bird droppings or oil stains. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a cleaning device and system for cleaning photovoltaic panels, so as to solve the problem of incomplete cleaning of photovoltaic panels in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a cleaning device for cleaning photovoltaic panels, the cleaning device comprising: a rainwater collecting mechanism, a cleaning mechanism and a driving mechanism; the cleaning mechanism is arranged on the top surface of the photovoltaic panel, and comprises a scraper and a plurality of nozzles; the driving mechanism is arranged on the back side of the photovoltaic panel, and is used to drive the cleaning mechanism to move along the top surface of the photovoltaic panel to clean the top surface of the photovoltaic panel; the rainwater collecting mechanism comprises a water tank, a rainwater collecting trough, a first pipe, a second pipe and a water pump; the water tank is arranged on the base of the photovoltaic panel; the rainwater collecting trough is arranged at the lower end of the photovoltaic panel; the water tank and the rainwater collecting trough are connected through a first pipe; the water pump is arranged on the second pipe, one end of the second pipe is connected to the water tank, and the other end is connected to the nozzle; the water pump is used to pump out water in the water tank and transmit it to the plurality of nozzles through the second pipe.

[0006] Optionally, the cleaning mechanism further includes a mounting seat, the mounting seat includes a water tank, the nozzle is connected to the water tank, and the second pipe is connected to the water tank; the scraper and the nozzle are arranged on the outer side surface of the mounting seat.

[0007] Optionally, there are two scrapers, which are respectively arranged on opposite sides of the mounting base; the multiple nozzles are divided into two parts, one of which is arranged on the side of the mounting base where the scraper is arranged, and the other part is arranged on the other side of the mounting base where the scraper is arranged.

[0008] Optionally, the mounting seat is further provided with a mounting groove for mounting the scraper and a fixing assembly for preventing the scraper from escaping from the mounting groove; and the scraper is provided with a mounting piece adapted to the mounting groove.

[0009] Optionally, the fixing assembly includes a mounting post, a blocking member, a baffle and a rotary switch; one end of the mounting post is connected to the side of the mounting seat, and the other end is rotatably connected to the rotary switch; one end of the blocking member is rotatably connected to the mounting post, and the other end is used to block the scraper to prevent the scraper from escaping from the mounting groove; a first tooth-shaped structure is provided on the side of the mounting seat away from the connecting end of the blocking member and the mounting post; one end of the baffle is connected to the side of the mounting seat, and the other end is provided with a first through hole, and the mounting post passes through the first through hole and is rotatably connected to the rotary switch; a second tooth-shaped structure adapted to the first tooth-shaped structure is provided on the side of the baffle close to the mounting seat; the rotary switch is used to drive the end of the baffle provided with the first through hole to move, so that the second tooth-shaped structure is connected to the first tooth-shaped structure, so that the blocking member cannot rotate relative to the mounting seat.

[0010] Optionally, the rainwater collection mechanism further includes a filter plate, which is arranged on the top surface of the rainwater collection trough and is used to filter the rainwater flowing into the rainwater collection trough.

[0011] Optionally, the rainwater collection mechanism further includes a drainage member arranged at the edge of the top surface of the photovoltaic panel, and the drainage member and the top surface of the photovoltaic panel form a groove for guiding rainwater to flow into the rainwater collection trough.

[0012] Optionally, the rainwater collection mechanism also includes a third pipe, a fourth pipe and a three-way solenoid valve; one end of the three-way solenoid valve is connected to the first pipe, one end is connected to the third pipe, and one end is connected to the fourth pipe; one end of the third pipe away from the three-way solenoid valve is connected to the water tank; one end of the fourth pipe away from the three-way solenoid valve is connected to the atmosphere; the three-way solenoid valve is used to selectively connect the third pipe and the first pipe or the fourth pipe and the first pipe to transfer the water in the rainwater collection tank to the water tank or the atmosphere.

[0013] Optionally, the driving mechanism includes a driving member, a screw rod and a guide member; the driving member, the screw rod and the guide member are arranged on the back of the photovoltaic panel; the mounting seat is connected to the screw rod through a screw nut, and the mounting seat is also slidably connected to the guide member; one end of the screw rod is connected to the driving member; the driving member is used to drive the screw rod to rotate, and then drive the mounting seat to slide along the guide member.

[0014] On the other hand, the present invention also provides a cleaning system for cleaning photovoltaic panels, including a base, a photovoltaic panel, a support and the above-mentioned cleaning device for cleaning photovoltaic panels; the photovoltaic panel is connected to the base through the support.

[0015] As described above, the cleaning device and system for cleaning photovoltaic panels of the present invention have at least the following beneficial effects: by setting up a rainwater collection mechanism to collect rainwater for use in cleaning photovoltaic panels, the cleaning cost of the cleaning device is reduced. In addition, the nozzle and the scraper move together during cleaning, that is, when the nozzle sprays water, the scraper cleans the top surface of the photovoltaic panel, so that it can be cleaned while spraying water, thereby improving the cleaning efficiency. Since the scraper is used to clean the photovoltaic panel, stains such as bird droppings or oil stains can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic structural diagram of an angle of a cleaning device for cleaning photovoltaic panels according to the present invention.

[0017] Figure 2 Shown is a schematic structural diagram of a cleaning device for cleaning photovoltaic panels according to another angle of the present invention.

[0018] Figure 3 Shown is a schematic structural diagram of the mounting base of the present invention.

[0019] Figure 4 Shown is a schematic structural diagram of the fixing assembly of the present invention.

[0020] Figure 5 It is a schematic structural diagram of a blocking member and a mounting column of a fixing assembly of the present invention.

[0021] Figure 6 Shown is a schematic structural diagram of the back side of the photovoltaic power generation panel of the present invention. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] Please refer to all the following drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0024] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0025] See also Figure 1 , 2 The present invention provides a cleaning device for cleaning a photovoltaic power generation panel 5, the cleaning device comprising: a rainwater collecting mechanism, a cleaning mechanism 2 and a driving mechanism 3; the cleaning mechanism 2 is arranged on the top surface of the photovoltaic power generation panel 5, and comprises a scraper 21 and a plurality of nozzles 22; the driving mechanism 3 is arranged on the back of the photovoltaic power generation panel 5, and is used to drive the cleaning mechanism 2 to move along the top surface of the photovoltaic power generation panel 5 to clean the top surface of the photovoltaic power generation panel 5; the rainwater collecting mechanism comprises a water tank 11, a rainwater collecting trough 12, a first pipe 13, a second pipe 14 and a water pump 15; the water tank 11 is arranged on the base 4 of the photovoltaic power generation panel 5; the rainwater collecting trough 12 is arranged at the lower end of the photovoltaic power generation panel 5; the water tank 11 is connected to the rainwater collecting trough 12 through the first pipe 13; the water pump 15 is arranged on the second pipe 14, one end of the second pipe 14 is connected to the water tank 11, and the other end is connected to the nozzle 22; the water pump 15 is used to pump out the water in the water tank 11 and transmit it to the plurality of nozzles 22 through the second pipe 14. Specifically, the rainwater collection trough 12 is used to collect rainwater that falls on the photovoltaic panel 5 on rainy days. The rainwater flows into the water tank 11 through the top surface of the photovoltaic panel 5. When the photovoltaic panel 5 needs to be cleaned, the collected rainwater is pumped out by the water pump 15 and discharged to the top surface of the photovoltaic panel 5 by the nozzle 22, so as to clean the top surface of the photovoltaic panel 5. During cleaning, the nozzle 22 and the scraper 21 move together, that is, when the nozzle 22 sprays water, the scraper 21 cleans the top surface of the photovoltaic panel 5, so as to spray water and clean at the same time, thereby improving the cleaning efficiency. In addition, since the scraper 21 is used to clean the photovoltaic panel 5, stains such as bird droppings or oil stains can be cleaned. In this embodiment, the second pipe 14 is a flexible pipe so that it can follow the movement of the cleaning mechanism 2.

[0026] See also Figure 1 , 2 3. The cleaning mechanism 2 also includes a mounting seat 23, the mounting seat 23 includes a water reservoir 231, the nozzle 22 is connected to the water reservoir 231, and the second pipe 14 is connected to the water reservoir 231; the scraper 21 and the nozzle 22 are arranged on the outer surface of the mounting seat 23. Specifically, the mounting seat 23 can be a mounting plate with a groove structure (water reservoir 231) for storing water on the top, and then a cover plate is used to close the structure of the mounting plate. The mounting seat 23 is arranged across the width direction of the photovoltaic power generation panel 5, and the scraper 21 and the nozzle 22 are arranged in the length direction of the mounting seat 23, that is, in the width direction of the photovoltaic power generation panel 5. The length of the scraper 21 is greater than or equal to the width of the photovoltaic power generation panel 5, that is, the mounting seat 23 moves once along the length direction of the photovoltaic power generation panel 5, and the scraper 21 can clean the top surface of the entire photovoltaic power generation panel 5.

[0027] The scraper 21 can be provided in two parts, which are respectively provided on opposite sides of the mounting seat 23, and the plurality of nozzles 22 are divided into two parts, one part of which is provided on the side of the mounting seat 23 provided with the scraper 21, and the other part is provided on the other side of the mounting seat 23 provided with the scraper 21. In the present embodiment, the two scrapers 21 are respectively provided on one side surface in the length extension direction of the mounting seat 23. The plurality of nozzles 22 can be evenly divided into two parts, which are respectively provided on the side surface of the mounting seat 23 provided with the scraper 21. The nozzle 22 can be provided on the side of the mounting seat 23 away from the photovoltaic power generation panel 5, that is, the scraper 21 is located between the nozzle 22 and the photovoltaic power generation panel 5.

[0028] See also Figure 3-5 The mounting seat 23 is also provided with a mounting groove 232 for mounting the scraper 21 and a fixing component 24 for preventing the scraper 21 from escaping from the mounting groove 232; the scraper 21 is provided with a mounting member 211 adapted to the mounting groove 232; the specific mounting groove 232 can be a T-shaped groove, and correspondingly, the mounting member 211 can be a T-shaped structure.

[0029] The fixing assembly 24 includes a mounting post 241, a blocking member 242, a baffle 243 and a rotary switch 244; one end of the mounting post 241 is connected to the side of the mounting seat 23, and the other end is rotatably connected to the rotary switch 244; one end of the blocking member 242 is rotatably connected to the mounting post 241, and the other end is used to block the scraper 21 to prevent the scraper 21 from escaping from the mounting groove 232; a first tooth-shaped structure is provided on the side of the connecting end of the blocking member 242 and the mounting post 241 away from the mounting seat 23; one end of the baffle 243 is connected to the side of the mounting seat 23, and the other end is provided with a first through hole, and the mounting post 241 passes through the first through hole and is rotatably connected to the rotary switch 244; a second tooth-shaped structure adapted to the first tooth-shaped structure is provided on the side of the baffle 243 close to the mounting seat 23; the rotary switch 244 is used to drive the end of the baffle 243 provided with the first through hole to move, so that the second tooth-shaped structure is connected to the first tooth-shaped structure, so that the blocking member 242 cannot rotate relative to the mounting seat 23. Specifically, a second through hole for mounting the rotary switch 244 is provided on the side of the mounting post 241 away from the mounting seat 23, and a rotating shaft may be provided on the rotary switch 244, and the rotating shaft is provided in the second through hole, so as to realize the rotational connection between the rotary switch 244 and the mounting post 241. The baffle 243 may be an L-shaped mounting plate, and the shorter end of the baffle 243 is connected to the side of the mounting seat 23, and the longer end is provided with a second tooth-shaped structure for connecting with the first tooth-shaped structure of the blocking member 242. The blocking member 242 may be provided with a third through hole, and the blocking member 242 is installed on the mounting post 241 through the third through hole to form a rotational connection. The blocking member 242 may be a plate-shaped structure.

[0030] The connection end of the rotary switch 244 and the baffle 243 is provided with a circular structure, that is, the rotary switch 244 forms a line contact with the rotary switch 244 using the circular structure. When in use, the rotary switch 244 rotates along the second through hole of the mounting column 241, driving the baffle 243 to undergo elastic deformation, thereby achieving connection or disconnection of the first tooth-shaped structure and the second tooth-shaped structure. When disconnected, the blocking member 242 can rotate relative to the side of the mounting seat 23, thereby opening the mounting groove 232, and achieving installation of the scraper 21 or taking the scraper 21 out of the mounting groove 232. When connected, and when the baffle 243 is facing the mounting groove 232, the blocking member 242 blocks the scraper 21 to prevent the scraper 21 from coming out of the mounting groove 232.

[0031] The rainwater collection mechanism further includes a filter plate 16, which is disposed on the top surface of the rainwater collection tank 12 and is used to filter the rainwater flowing into the rainwater collection tank 12. The filter plate 16 may be a filter plate 16 formed by a structure such as filter cotton, so as to filter the rainwater or the water sprayed from the nozzle 22 to prevent pollutants from entering the water tank 11. In this embodiment, the filter plate 16 is a hollow plate with a plurality of holes, which is used to prevent larger impurities, such as infusion, stones, etc., from entering the rainwater collection tank 12.

[0032] See also Figure 1 , 2 The rainwater collection mechanism further includes a drainage member 17 disposed on the edge of the top surface of the photovoltaic power generation panel 5. The drainage member 17 and the top surface of the photovoltaic power generation panel 5 enclose a groove for guiding rainwater to flow into the rainwater collection tank 12. The drainage member 17 may be a plate-shaped structure. The blocking member 242 and the top surface of the photovoltaic power generation panel 5 enclose a groove for guiding rainwater to flow into the rainwater collection tank 12 to drain rainwater or water sprayed from the nozzle 22, ensuring that rainwater or water sprayed from the nozzle 22 can enter the rainwater collection tank 12.

[0033] The rainwater collection mechanism also includes a third pipe 18, a fourth pipe 19 and a three-way solenoid valve 20; one end of the three-way solenoid valve 20 is connected to the first pipe 13, one end is connected to the third pipe 18, and one end is connected to the fourth pipe 19; one end of the third pipe 18 away from the three-way solenoid valve 20 is connected to the water tank 11; one end of the fourth pipe 19 away from the three-way solenoid valve 20 is connected to the atmosphere; the three-way solenoid valve 20 is used to selectively connect the third pipe 18 with the first pipe 13 or the fourth pipe 19 with the first pipe 13 to transfer the water in the rainwater collection tank 12 to the water tank 11 or the atmosphere. The atmosphere referred to in this embodiment is that the end of the fourth pipe 19 away from the three-way solenoid valve 20 is connected to the external environment, that is, there is no connection between the fourth pipe 19 and the water tank 11. When cleaning the photovoltaic panel 5, the three-way solenoid valve 20 can open the connection between the first pipe 13 and the fourth pipe 19, so that the water sprayed from the nozzle 22 flows through the rainwater collection tank 12 and is discharged to the external environment through the fourth pipe 19. When the photovoltaic panel 5 is not cleaned, the three-way solenoid valve 20 can open the connection between the first pipe 13 and the third pipe 18, so that on rainy days, rainwater flows through the rainwater collection trough 12 and enters the water tank 11 for use in cleaning the photovoltaic panel 5.

[0034] See also Figure 6The driving mechanism 3 includes a driving member 31, a screw rod 32 and a guide member 33; the driving member 31, the screw rod 32 and the guide member 33 are arranged on the back of the photovoltaic panel 5; the mounting seat 23 is connected to the screw rod 32 through the screw rod 32 nut, and is also slidably connected to the guide member 33; one end of the screw rod 32 is connected to the driving member 31; the driving member 31 is used to drive the screw rod 32 to rotate, and then drive the mounting seat 23 to slide along the guide member 33. Specifically, the driving member 31 can be a motor, and the guide member 33 can be a guide rail. In this embodiment, two guide rails are provided, which are respectively provided on both sides of the screw rod 32 to ensure the stability of the movement of the mounting seat 23.

[0035] The present invention also provides a cleaning system for cleaning a photovoltaic panel 5, which includes a base 4, a photovoltaic panel 5, a support 6 and the above-mentioned cleaning device for cleaning the photovoltaic panel 5; the photovoltaic panel 5 is connected to the base 4 through the support 6.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A cleaning device for cleaning photovoltaic panels, characterized in that: The cleaning device comprises: a rainwater collection mechanism, a cleaning mechanism and a driving mechanism; The cleaning mechanism is arranged on the top surface of the photovoltaic power generation panel, and comprises a scraper and a plurality of nozzles; The driving mechanism is arranged on the back side of the photovoltaic power generation panel, and is used to drive the cleaning mechanism to move along the top surface of the photovoltaic power generation panel to clean the top surface of the photovoltaic power generation panel; The rainwater collection mechanism includes a water tank, a rainwater collection trough, a first pipe, a second pipe and a water pump; the water tank is arranged on the base of the photovoltaic power generation panel; the rainwater collection trough is arranged at the lower end of the photovoltaic power generation panel; the water tank is connected to the rainwater collection trough through a first pipe; the water pump is arranged on the second pipe, one end of the second pipe is connected to the water tank, and the other end is connected to the nozzle; the water pump is used to pump out the water in the water tank and transmit it to the multiple nozzles through the second pipe.

2. A cleaning device for cleaning photovoltaic panels according to claim 1, characterized in that: The cleaning mechanism further comprises a mounting seat, the mounting seat comprises a water reservoir, the nozzle is connected to the water reservoir, and the second pipe is connected to the water reservoir; The scraper and the nozzle are arranged on the outer side surface of the mounting seat.

3. A cleaning device for cleaning a photovoltaic panel according to claim 2, characterized in that: There are two scrapers, which are respectively arranged on opposite sides of the mounting seat; The plurality of nozzles are divided into two parts, one part is arranged on one side of the mounting seat where the scraper is arranged, and the other part is arranged on the other side of the mounting seat where the scraper is arranged.

4. A cleaning device for cleaning photovoltaic panels according to claim 3, characterized in that: The mounting seat is also provided with a mounting groove for mounting the scraper and a fixing assembly for preventing the scraper from falling out of the mounting groove; The scraper is provided with a mounting piece matched with the mounting groove.

5. A cleaning device for cleaning a photovoltaic panel according to claim 4, characterized in that: The fixing assembly includes a mounting post, a blocking member, a baffle and a rotary switch; One end of the mounting column is connected to the side of the mounting seat, and the other end is rotatably connected to the rotary switch; One end of the blocking member is rotatably connected to the mounting post, and the other end is used to block the scraper to prevent the scraper from escaping from the mounting groove; a first tooth-shaped structure is provided on the side of the connection end of the blocking member and the mounting post away from the mounting seat; One end of the baffle is connected to the side of the mounting seat, and the other end is provided with a first through hole, and the mounting post passes through the first through hole and is rotatably connected to the rotary switch; a second tooth-shaped structure adapted to the first tooth-shaped structure is provided on the side of the baffle close to the mounting seat; The rotary switch is used to drive the end of the baffle plate provided with the first through hole to move, so that the second toothed structure is connected to the first toothed structure, so that the blocking member cannot rotate relative to the mounting seat.

6. A cleaning device for cleaning photovoltaic panels according to claim 3, characterized in that: The rainwater collection mechanism also includes a filter plate, which is arranged on the top surface of the rainwater collection trough and is used to filter the rainwater flowing into the rainwater collection trough.

7. A cleaning device for cleaning a photovoltaic panel according to claim 6, characterized in that: The rainwater collection mechanism also includes a drainage member arranged on the edge of the top surface of the photovoltaic power generation panel, and the drainage member and the top surface of the photovoltaic power generation panel form a groove for guiding rainwater to flow into the rainwater collection groove.

8. A cleaning device for cleaning a photovoltaic panel according to claim 7, characterized in that: The rainwater collection mechanism also includes a third pipe, a fourth pipe and a three-way solenoid valve; One end of the three-way solenoid valve is connected to the first pipeline, one end is connected to the third pipeline, and one end is connected to the fourth pipeline; one end of the third pipeline away from the three-way solenoid valve is connected to the water tank; one end of the fourth pipeline away from the three-way solenoid valve is connected to the atmosphere; The three-way solenoid valve is used to selectively connect the third pipe to the first pipe or the fourth pipe to the first pipe to transfer the water in the rainwater collection tank to the water tank or the atmosphere.

9. A cleaning device for cleaning a photovoltaic panel according to claim 2, characterized in that: The driving mechanism comprises a driving member, a screw rod and a guide member; The driving member, the screw rod and the guide member are arranged on the back side of the photovoltaic power generation panel; The mounting seat is connected to the screw rod through a screw nut, and the mounting seat is also slidably connected to the guide member; One end of the screw rod is connected to the driving member; the driving member is used to drive the screw rod to rotate, thereby driving the mounting seat to slide along the guide member.

10. A cleaning system for cleaning photovoltaic panels, characterized in that: It comprises a base, a photovoltaic panel, a support and a cleaning device for cleaning the photovoltaic panel as described in any one of claims 1 to 9; the photovoltaic panel is connected to the base through the support.

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