Assembly type self-cleaning device suitable for distributed rooftop photovoltaic panels

Abstract

This utility model discloses a prefabricated self-cleaning device suitable for distributed rooftop photovoltaic panels, including a storage rack disposed on the upper side of the photovoltaic panel frame. A T-shaped cleaning rack is rotatably connected inside the storage rack, and the cleaning rack can be rotatably stored inside the storage rack. A water spray component and a cleaning component are respectively disposed on the left and right sides of the cleaning rack. A drive component is disposed on the upper side of the storage rack to drive the cleaning rack to rotate along the upper side of the photovoltaic panel frame. This utility model achieves water spray cleaning of the photovoltaic panel surface through the storage rack, cleaning rack, water spray component, cleaning component, and drive motor, ensuring the cleanliness of the photovoltaic panel surface, thereby ensuring the power generation efficiency of the photovoltaic panel and improving the convenience for workers when cleaning the photovoltaic panel. The elastic telescopic column can create a certain pressure between the cleaning roller and the upper side of the photovoltaic panel frame, improving the cleaning effect of the cleaning roller on the photovoltaic panel.

Description

Technical Field

[0001] This utility model belongs to the field of solar photovoltaic panel cleaning technology, and relates to an assembled self-cleaning device suitable for distributed rooftop photovoltaic panels. Background Technology

[0002] Over long-term use, solar photovoltaic panels accumulate dust, dirt, and other impurities on their surfaces, leading to a decrease in power generation efficiency. Traditional cleaning methods mainly rely on manual cleaning, which is inefficient and costly. Existing automated cleaning equipment is often complex in structure and expensive, making it unsuitable for distributed photovoltaic systems (such as residential rooftop solar systems). Therefore, there is an urgent need for a mechanical cleaning device that is simple in structure, low in cost, energy-efficient, environmentally friendly, and easy to install and maintain.

[0003] Chinese utility model patent CN206083205U discloses a solar panel cleaning device, including a frame, a cleaning brush, a connecting rod, and a power source for driving the cleaning brush to rotate. The power source is fixed on the frame, and the cleaning brush is rotatably mounted on the frame via the connecting rod, with the plane of rotation of the cleaning brush parallel to the solar panel. The connecting rod has several first protrusions, and the frame has several second protrusions distributed along the rotation path of the connecting rod. This technical solution, by setting the first and second protrusions, creates a vibration effect on the cleaning brush, which can effectively shake off the dust adhering to the cleaning brush, avoiding excessive dust on the cleaning brush and thus improving the cleaning effect. In this technical solution, the cleaning brush alone cannot clean the dust on the surface of the solar panel, and when the cleaning brush vibrates, the dust on the cleaning brush will still fall onto the surface of the solar panel, affecting the cleaning effect. Utility Model Content

[0004] To address the problem that cleaning brushes alone cannot effectively remove dust from the surface of solar panels, and that dust on the brushes still falls onto the solar panels when the brushes vibrate, thus affecting the cleaning effect, this invention proposes an assembled self-cleaning device suitable for distributed rooftop photovoltaic panels. This device effectively solves the problem in the prior art that cleaning brushes alone cannot effectively remove dust from the surface of solar panels, and that dust on the brushes still falls onto the solar panels when the brushes vibrate, thus affecting the cleaning effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A prefabricated self-cleaning device suitable for distributed rooftop photovoltaic panels includes a storage rack disposed on the upper side of the photovoltaic panel frame. The storage rack is L-shaped and installed at the corner of the upper side of the photovoltaic panel frame. A T-shaped cleaning rack is rotatably connected inside the storage rack. The cleaning rack can be rotatably stored inside the storage rack. A water spray component and a cleaning component are respectively disposed on the left and right sides of the cleaning rack. A drive component for driving the cleaning rack to rotate along the upper side of the photovoltaic panel frame is disposed on the upper side of the storage rack.

[0006] Furthermore, the water spray assembly includes a water tank located on the left side of the cleaning rack, with multiple atomizing nozzles arranged in a linear array on the lower side of the water tank. The atomizing nozzles are connected to the inner cavity of the water tank, and a water inlet is provided on the side of the water tank.

[0007] Furthermore, the cleaning assembly includes two elastic telescopic columns respectively disposed at the front and rear ends of the right side of the cleaning frame. The telescopic ends of the elastic telescopic columns are provided with connecting blocks, and the opposite sides of the two connecting blocks are rotatably connected to cleaning rollers.

[0008] Furthermore, the cleaning roller includes a rotating shaft rotatably connected to the connecting block and a flexible brush layer located on the outer surface of the rotating shaft.

[0009] Furthermore, the drive assembly includes a drive motor disposed on the upper side of the storage shell, and the output shaft of the drive motor passes through the storage shell and is connected to the rotating end of the cleaning rack.

[0010] Furthermore, the storage rack is also provided with an arc-shaped guide frame, and the upper and lower sides of the inner cavity of the guide frame are provided with arc-shaped sliding grooves. The cleaning rack is slidably connected to the guide frame in the sliding grooves away from the rotation of the drive motor.

[0011] Furthermore, the storage rack has multiple ventilation holes arranged in a rectangular array on its side, and a dustproof net is provided on the side of the storage rack to cover the ventilation holes.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model achieves water spray cleaning of the photovoltaic panel surface through a storage rack, a cleaning rack, a water spray component, a cleaning component, and a drive motor, ensuring the cleanliness of the photovoltaic panel surface, thereby ensuring the power generation efficiency of the photovoltaic panel and improving the convenience for staff when cleaning the photovoltaic panel. This invention uses an elastic telescopic column to create pressure between the cleaning roller and the upper side of the photovoltaic panel frame. This ensures that the photovoltaic panel is not damaged while improving the cleaning effect of the cleaning roller. At the same time, the flexible brush layer further ensures flexible contact between the cleaning roller and the photovoltaic panel, improving the reliability of the device when cleaning the photovoltaic panel. This invention guides the swing direction of the cleaning rack through a guide frame and an arc-shaped slide, ensuring the stability of the cleaning rack during swing and preventing it from deviating from its original direction. The ventilation holes ensure air circulation within the storage rack, thereby achieving rapid drying of the cleaning roller and ensuring its subsequent cleaning effect. At the same time, the dustproof net prevents external dust from contacting the cleaning roller through the ventilation holes, ensuring the cleanliness of the cleaning roller surface. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a first perspective view of the cleaning rack of this utility model; Figure 3 This is a second perspective view of the cleaning rack of this utility model; Figure 4 This is a schematic diagram of the structure of the cleaning rack of this utility model; Figure 5 This is a structural schematic diagram of the cleaning rack and storage rack of this utility model.

[0014] In the diagram: 1. Photovoltaic panel frame; 2. Storage rack; 201. Ventilation hole; 3. Cleaning rack; 4. Water tank; 5. Atomizing nozzle; 6. Water inlet; 7. Flexible telescopic column; 8. Connecting block; 9. Cleaning roller; 10. Dustproof net; 11. Drive motor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] An assembled self-cleaning device for distributed rooftop photovoltaic panels includes a storage rack 2 disposed on the upper side of a photovoltaic panel frame 1. The storage rack 2 is L-shaped and installed at the corner of the upper side of the photovoltaic panel frame 1. A T-shaped cleaning rack 3 is rotatably connected inside the storage rack 2. The cleaning rack 3 can be rotatably stored inside the storage rack 2. A water spray component and a cleaning component are respectively disposed on the left and right sides of the cleaning rack 3. A drive component for driving the cleaning rack 3 to rotate along the upper side of the photovoltaic panel frame 1 is disposed on the upper side of the storage rack 2.

[0017] In this embodiment, the water spray assembly includes a water tank 4 welded to the left side of the cleaning rack 3. Multiple atomizing nozzles 5 are arranged in a linear array on the lower side of the water tank 4. The atomizing nozzles 5 are connected to the inner cavity of the water tank 4. A water inlet 6 is provided on the side of the water tank 4. Water is replenished periodically through the water inlet or by connecting to tap water or other water sources to achieve automatic replenishment of the water or cleaning solution required for cleaning.

[0018] In this embodiment, the cleaning component includes two elastic telescopic columns 7 respectively disposed at the front and rear ends of the right side of the cleaning frame 3. The telescopic ends of the elastic telescopic columns 7 are provided with connecting blocks 8. The two connecting blocks 8 are rotatably connected to the opposite sides of the cleaning rollers 9. The elastic telescopic column 7 includes a telescopic shell and a telescopic column that slides vertically and vertically connected to the telescopic shell. The lower end of the telescopic column extends out of the lower side of the telescopic shell. A spring sleeved on the telescopic column is disposed inside the telescopic shell.

[0019] In this embodiment, the cleaning roller 9 includes a rotating shaft rotatably connected to the connecting block 8 via a bearing and a flexible brush layer located on the outer surface of the rotating shaft.

[0020] In this embodiment, the drive assembly includes a drive motor 11 disposed on the upper side of the storage shell, and the output shaft of the drive motor 11 passes through the storage shell and is connected to the rotating end of the cleaning rack 3.

[0021] The working principle of this embodiment is as follows: During use, the drive motor 11 can drive the cleaning frame 3 to swing back and forth along the upper side of the photovoltaic panel frame 1 along the storage shell. When the cleaning frame 3 swings, the atomizing nozzle 5 on the lower side of the water tank 4 can atomize and spray the cleaning liquid in the water tank 4 onto the upper side of the photovoltaic panel frame 1. Subsequently, the cleaning roller 9 can be pushed by the elastic telescopic column 7 to make the flexible brush layer on the outer side of the cleaning roller 9 contact the upper side of the photovoltaic panel frame and clean it by rolling. The elastic telescopic column 7 can make the cleaning roller 9 and the upper side of the photovoltaic panel frame 1 have a certain pressure, which can improve the cleaning effect of the cleaning roller 9 on the photovoltaic panel while ensuring that it does not damage the photovoltaic panel. At the same time, the flexible brush layer further ensures the flexible contact between the cleaning roller 9 and the photovoltaic panel, which improves the reliability of the device when cleaning the photovoltaic panel. After cleaning, the cleaning frame 3 can be stored in the storage frame 2 under the action of the drive motor 11 to prevent the cleaning frame 3 from blocking the photovoltaic panel and affecting the power generation efficiency of the photovoltaic panel. Preferably, in the above embodiment, the drive motor 11 can be electrically connected to the photovoltaic panel frame 1, so that the photovoltaic panel can charge the drive motor 11, and thus the device can cooperate with the photovoltaic panel frame 1 to achieve self-sufficiency.

[0022] Example 2 differs from Example 1 in that: In this embodiment, the storage rack 2 is also provided with an arc-shaped guide frame. The upper and lower sides of the inner cavity of the guide frame are provided with arc-shaped sliding grooves. The cleaning rack 3 is slidably connected to the guide frame in the sliding grooves away from the drive motor 11. In use, the end of the cleaning rack 3 is slidably connected to the guide frame, thereby guiding the swing direction of the cleaning rack 3, ensuring the stability of the cleaning rack 3 when swinging, preventing the cleaning rack 3 from deviating from its original direction when swinging, and further improving the reliability of the device in use.

[0023] In this embodiment, the storage rack 2 has multiple ventilation holes 201 arranged in a rectangular array on its side. The storage rack 2 is provided with a dustproof net 10 that covers the ventilation holes 201. During use, the ventilation holes 201 can ensure air circulation inside the storage rack 2, thereby achieving rapid drying of the cleaning roller 9 and ensuring the subsequent cleaning effect of the cleaning roller 9. At the same time, the dustproof net 10 can prevent external dust from contacting the cleaning roller 9 through the ventilation holes 201, ensuring the cleanliness of the surface of the cleaning roller 9.

[0024] Example 3 differs from Example 1 in that: In the above embodiment 1, the water spray component can be replaced with an air jet component, the water tank 4 can be replaced with an air jet shell, the atomizing nozzle 5 can be replaced with an air nozzle, and the water inlet 6 can be replaced with an air connector. The air connector is connected to an external air pump. In use, the air connector is filled with air into the air jet shell under the action of the external air pump. The gas in the air jet shell can be sprayed out along the air nozzle, thereby achieving a primary cleaning of the photovoltaic panel surface. Subsequently, the cleaning roller 9 in the cleaning frame 3 can perform a secondary cleaning of the photovoltaic panel surface, ensuring the cleaning effect of the device when cleaning the closed photovoltaic panel.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning device suitable for distributed rooftop photovoltaic panels, comprising a housing frame (2) arranged on the upper side of a photovoltaic panel rack (1), characterized in that: The storage rack (2) is L-shaped and is installed on the corner of the upper side of the photovoltaic panel frame (1). A T-shaped cleaning rack (3) is rotatably connected inside the storage rack (2). The cleaning rack (3) can be rotatably stored inside the storage rack (2). A water spray component and a cleaning component are respectively provided on the left and right sides of the cleaning rack (3). A drive component is provided on the upper side of the storage rack (2) to drive the cleaning rack (3) to rotate along the upper side of the photovoltaic panel frame (1).

2. The assembled self-cleaning device suitable for distributed rooftop photovoltaic panels according to claim 1, characterized in that: The water spray assembly includes a water tank (4) located on the left side of the cleaning rack (3). Multiple atomizing nozzles (5) are arranged in a linear array on the lower side of the water tank (4). The atomizing nozzles (5) are connected to the inner cavity of the water tank (4). A water inlet (6) is provided on the side of the water tank (4).

3. The assembled self-cleaning device suitable for distributed rooftop photovoltaic panels according to claim 1, characterized in that: The cleaning assembly includes two elastic telescopic columns (7) respectively located at the front and rear ends of the right side of the cleaning frame (3). The telescopic ends of the elastic telescopic columns (7) are provided with connecting blocks (8), and the two connecting blocks (8) are rotatably connected to the opposite sides of the cleaning rollers (9).

4. The prefabricated self-cleaning device for distributed rooftop photovoltaic panels according to claim 3, characterized in that: The cleaning roller (9) includes a rotating shaft rotatably connected to the connecting block (8) and a flexible brush layer located on the outer surface of the rotating shaft.

5. The prefabricated self-cleaning device for distributed rooftop photovoltaic panels according to claim 1, characterized in that: The drive assembly includes a drive motor (11) disposed on the upper side of the storage shell, and the output shaft of the drive motor (11) passes through the storage shell and is connected to the rotating end of the cleaning rack (3).

6. The prefabricated self-cleaning device for distributed rooftop photovoltaic panels according to claim 5, characterized in that: The storage rack (2) is also provided with an arc-shaped guide frame. The upper and lower sides of the inner cavity of the guide frame are provided with arc-shaped grooves. The cleaning rack (3) is slidably connected to the guide frame in the grooves away from the rotation of the drive motor (11).

7. The prefabricated self-cleaning device for distributed rooftop photovoltaic panels according to claim 1, characterized in that: The storage rack (2) has multiple ventilation holes (201) arranged in a rectangular array on its side, and a dustproof net (10) is provided on the side of the storage rack (2) to cover the ventilation holes (201).

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