Photovoltaic panel cleaning device

Abstract

The application discloses a photovoltaic panel cleaning device, comprising: a first walking module arranged at a first end of a photovoltaic panel; a second walking module arranged at a second end of the photovoltaic panel; a roller brush assembly connected to the first walking module and the second walking module, the first walking module and / or the second walking module walking along the photovoltaic panel to drive the roller brush assembly to clean the surface of the photovoltaic panel; wherein the first walking module comprises a first base frame, the first base frame being provided with a supporting wheel, an auxiliary wheel and a first track assembly, the supporting wheel and the auxiliary wheel being arranged on the upper and lower sides of the photovoltaic panel respectively, the supporting wheel abutting against the upper surface of the photovoltaic panel, the first track assembly abutting against the outer side wall of the photovoltaic panel, and the first track assembly being connected to a first driving member for driving the first track assembly to walk along the outer side wall of the photovoltaic panel. The cleaning device of the application connects the first walking module and the second walking module through the roller brush assembly, has a simple structure, is light in overall weight, and can reduce the damage probability of the photovoltaic panel and the mounting bracket thereof.

Description

Technical Field

[0001] This application relates to the field of photovoltaic panel cleaning equipment technology, and in particular to a photovoltaic panel cleaning device. Background Technology

[0002] Against the backdrop of a global energy transition towards renewable energy, the photovoltaic (PV) industry is experiencing a surge in large-scale development, with the number of PV power plants and their installed capacity showing a continuous upward trend. After a PV power plant is put into operation, its long-term stable operation and power generation efficiency rely heavily on standardized operation and maintenance management. Among these, the cleanliness control of PV panels is particularly crucial. As the core power generation component of a power plant, if PV panels are contaminated with dust, sand, bird droppings, fallen leaves, and other pollutants, it will directly reduce light absorption efficiency and trigger hot spot effects. This not only leads to a significant decline in the power plant's power generation performance but may also shorten the panel's lifespan, causing economic losses. Therefore, regular and efficient cleaning of PV panels has become a core requirement for maintaining the operational stability of PV power plants and ensuring a return on investment.

[0003] To meet these cleaning needs, photovoltaic panel cleaning devices have emerged as an alternative to traditional manual cleaning. However, existing cleaning devices are complex in structure, heavy, and prone to damaging the surface of photovoltaic panels and their mounting brackets, and have high production costs. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a photovoltaic panel cleaning device that is simple in structure, low in manufacturing cost, and lightweight, thereby reducing the probability of damaging the photovoltaic panel.

[0005] A photovoltaic panel cleaning device according to an embodiment of this application includes: The first walking module is located at the first end of the photovoltaic panel; The second walking module is located at the second end of the photovoltaic panel opposite to the first end; A roller brush assembly is connected to the first walking module and the second walking module. The first walking module and / or the second walking module walk along the photovoltaic panel, driving the roller brush assembly to clean the surface of the photovoltaic panel. The first walking module includes a first base frame, on which a support wheel, an auxiliary wheel, and a first track assembly are mounted. The support wheel abuts against the upper surface of the photovoltaic panel, the auxiliary wheel abuts against the lower surface of the photovoltaic panel, and the first track assembly abuts against the outer side wall of the photovoltaic panel. The first track assembly is connected to a first driving member that drives it to walk along the outer side wall of the photovoltaic panel.

[0006] The photovoltaic panel cleaning device according to the embodiments of this application has at least the following beneficial effects: By having the support wheels and auxiliary wheels of the first walking module abut against the upper and lower surfaces of the photovoltaic panel respectively, the risk of the first walking module detaching from the photovoltaic panel is effectively reduced. The first track assembly moves on the photovoltaic panel, and compared to roller walking, the track has a larger contact area with the photovoltaic panel, stronger adhesion, and adheres closely to the outer wall of the photovoltaic panel, making it less likely to damage the panel. The track has better directionality and passability, is less prone to slipping or tipping, can stably pass through small obstacles, and is suitable for deformed photovoltaic panels, thus increasing the stability of the cleaning device. The first and second walking modules are connected by a roller brush assembly. By increasing the structural strength of the roller brush assembly, the stability of the cleaning device can be ensured, thereby eliminating the need for the main beam and frame structures of traditional equipment, simplifying the structure, reducing costs, and lightening the overall weight of the cleaning device, thus reducing the probability of damage to the photovoltaic panel and its mounting bracket.

[0007] In some embodiments of this application, two auxiliary wheels are provided, and the two auxiliary wheels are respectively installed at opposite ends of the first base frame; The support wheel is provided in two parts, which are horizontally spaced apart and are positioned between the two auxiliary wheels.

[0008] In some embodiments of this application, the first track assembly includes: The first drive wheel is connected to the first drive component; The first driven wheel is slidably mounted on the first base frame and can be fixed relative to the first base frame; the first driven wheel slides along the first base frame to adjust the distance between it and the first driving wheel; The first track is fitted around the outer periphery of the first driving wheel and the first driven wheel, and the first track is in contact with the outer wall of the photovoltaic panel.

[0009] In some embodiments of this application, the second walking module includes: Second framework; The second track assembly is mounted on the second base frame and abuts against the upper surface of the photovoltaic panel; The second drive unit drives the second track assembly to move.

[0010] In some embodiments of this application, the second track assembly includes: The second drive wheel is connected to the second drive component; The second driven wheel is slidably mounted on the second base frame and can be fixed relative to the second base frame; the second driven wheel slides along the second base frame to adjust the distance between it and the second driving wheel; The second track is fitted around the outer periphery of the second driving wheel and the second driven wheel, and the second track is in contact with the upper surface of the photovoltaic panel.

[0011] In some embodiments of this application, the second walking module further includes a tensioning wheel, which is slidably mounted on the second base frame and abuts against the second track; The sliding direction of the tensioning wheel is perpendicular to the sliding direction of the second driven wheel.

[0012] In some embodiments of this application, the roller brush assembly includes a first roller brush and a second roller brush, wherein the first roller brush and the second roller brush are arranged parallel to each other at a distance. The first roller brush is connected to the second driving component; The second walking module also includes a third driving component, and the second roller brush is connected to the third driving component.

[0013] In some embodiments of this application, the photovoltaic panel cleaning device further includes a detection module, which includes a controller and a boundary detection component. The boundary detection component, the first walking module, and the second walking module are all electrically connected to the controller. The boundary detection component is used to detect the boundary of the photovoltaic panel, and the controller controls the first walking module and / or the second walking module to walk or stop according to the detection signal of the boundary detection component.

[0014] In some embodiments of this application, both the first walking module and the second walking module are equipped with the boundary detection component.

[0015] In some embodiments of this application, the first walking module is equipped with an attitude detection module, which is electrically connected to the controller.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the cleaning device installed on a photovoltaic panel according to an embodiment of this application; Figure 2 for Figure 1 A structural schematic diagram of the first walking module from a frontal view; Figure 3 for Figure 1 A structural schematic diagram of the first walking module from the rear view; Figure 4for Figure 1 A structural schematic diagram of the second walking module from a frontal view; Figure 5 for Figure 1 A structural schematic diagram of the second walking module from the rear view.

[0018] Icon labels: The system comprises: a first walking module 100, a first base frame 110, a support wheel 120, an auxiliary wheel 130, a first track assembly 140, a first drive wheel 141, a first driven wheel 142, a first track 143, and a first drive component 150. The second walking module 200, the second base frame 210, the second track assembly 220, the second drive wheel 221, the second driven wheel 222, the second track 223, the second drive component 230, the tension wheel 240, and the third drive component 250; Roller brush assembly 300, first roller brush 310, second roller brush 320; Detection module 400, controller 410, boundary detection component 420; Attitude detection module 430. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0022] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 5This application discloses a photovoltaic panel cleaning device, including a first walking module 100, a second walking module 200, and a roller brush assembly 300. The first walking module 100 is disposed at the first end of the photovoltaic panel, and the second walking module 200 is disposed at the second end of the photovoltaic panel opposite to the first end. The roller brush assembly 300 connects the first walking module 100 and the second walking module 200. The first walking module 100 and / or the second walking module 200 walk along the photovoltaic panel, driving the roller brush assembly 300 to clean the surface of the photovoltaic panel.

[0024] In the specific embodiments of this application, reference is made to Figure 2 , Figure 3 As shown, the first walking module 100 includes a first base frame 110. The first base frame 110 is equipped with a support wheel 120, an auxiliary wheel 130, and a first track assembly 140. The support wheel 120 and the auxiliary wheel 130 are respectively disposed on the upper and lower sides of the photovoltaic panel. The support wheel 120 is located above the photovoltaic panel and abuts against the upper surface of the photovoltaic panel. The auxiliary wheel 130 is located below the photovoltaic panel, but usually does not contact the lower surface of the photovoltaic panel. The support wheel 120 and the auxiliary wheel 130 are both rotatably mounted on the first base frame 110 around their own axes. The first track assembly 140 abuts against the outer wall of the photovoltaic panel. The first track assembly 140 is connected to a first driving member 150 that drives it to walk along the outer wall of the photovoltaic panel.

[0025] Reference Figure 2 As shown, there are two auxiliary wheels 130, which are respectively installed at opposite ends of the first base frame 110; there are two support wheels 120, which are horizontally spaced apart and positioned between the two auxiliary wheels 130. The two auxiliary wheels 130 and the two support wheels 120 are of equal size and shape to reduce production costs. The specific shapes and sizes of the support wheels 120 and auxiliary wheels 130 can be customized according to actual conditions and are not limited in this embodiment. Figure 2 The support wheels 120 and auxiliary wheels 130 shown are for reference only. The two auxiliary wheels 130 and the two support wheels 120, arranged at intervals, effectively reduce the risk of the first walking module 100 detaching from the photovoltaic panel.

[0026] Reference Figure 2 , Figure 3As shown, in some embodiments of this application, the first track assembly 140 includes a first drive wheel 141, a first driven wheel 142, and a first track 143. The first drive wheel 141 is connected to a first drive member 150, which may be a motor. The first driven wheel 142 is slidably mounted on the first base frame 110 and can be fixed relative to the first base frame 110. The first driven wheel 142 slides along the first base frame 110 to adjust the distance between it and the first drive wheel 141. The first track 143 is sleeved on the outer periphery of the first drive wheel 141 and the first driven wheel 142, and the first track 143 is in contact with the outer side wall of the photovoltaic panel. The first track 143 is in close contact with the outer wall of the photovoltaic panel, making it less likely to damage the photovoltaic panel. Compared with rollers, the first track 143 has a larger contact area with the photovoltaic panel and stronger adhesion. Compared with rollers, the first track 143 has better directionality and passability, is less likely to slip or tip over, can stably pass through small obstacles, and can be used with deformed photovoltaic panels, thereby increasing the stability of the cleaning device.

[0027] Specifically, refer to Figure 3 As shown, the first base frame 110 is provided with a strip hole. The central shaft of the first driven wheel 142 passes through the strip hole and is connected to a locking bolt. After the central shaft of the first driven wheel 142 slides along the strip hole to the track tension position, the locking bolt is tightened to fix the relative position of the first driven wheel 142 and the first base frame 110.

[0028] In some embodiments of this application, reference is made to Figure 4 , Figure 5 As shown, the second walking module 200 includes a second base frame 210, a second track assembly 220, and a second drive unit 230. The second track assembly 220 is mounted on the second base frame 210 and abuts against the upper surface of the photovoltaic panel; the second drive unit 230 drives the second track assembly 220 to move, and the second drive unit 230 is preferably a motor. (Refer to...) Figure 1 As shown, the photovoltaic panel is also tilted. The first walking module 100 is installed at the upper end of the photovoltaic panel, and the second walking module 200 is installed at the lower end. Under the weight of the cleaning device itself, the first walking module 100 easily adheres to the photovoltaic panel. Therefore, the first track assembly 140 of the first photovoltaic panel can be set to adhere to the outer wall of the photovoltaic panel. Similarly, under the weight of the cleaning device itself, the second walking module 200 does not easily adhere to the photovoltaic panel. Therefore, setting the second track assembly 220 to contact the upper surface of the photovoltaic panel ensures the adhesion between the second track assembly 220 and the photovoltaic panel, achieving the same walking speed for the first walking module 100 and the second walking module 200, thereby improving the cleaning effect of the cleaning device.

[0029] In some embodiments of this application, the second track assembly 220 has a substantially the same shape as the first track assembly 140. The second track assembly 220 includes a second drive wheel 221, a second driven wheel 222, and a second track 223. The second drive wheel 221 is connected to the second drive member 230. The second driven wheel 222 is slidably mounted on the second base frame 210 and can be fixed relative to the second base frame 210. The second driven wheel 222 slides along the second base frame 210 to adjust the distance between it and the second drive wheel 221. The second track 223 is sleeved on the outer periphery of the second drive wheel 221 and the second driven wheel 222, and the second track 223 is in contact with the upper surface of the photovoltaic panel.

[0030] Reference Figure 4 As shown, the second base frame 210 is provided with a strip hole. The central shaft of the second driven wheel 222 passes through the strip hole and is connected to a locking bolt. After the central shaft of the second driven wheel 222 slides along the strip hole to the track tension position, the locking bolt is tightened to fix the relative position of the second driven wheel 222 and the second base frame 210.

[0031] To facilitate the tensioning of the second track 223 and the cleaning of its surface, refer to Figure 4 As shown, in some embodiments of this application, the second walking module 200 further includes a tension wheel 240, which is slidably mounted on the second base frame 210 and abuts against the second track 223. The tension wheel 240 can also be fixed relative to the second base frame 210. The adjustment method of the tension wheel 240 is basically the same as the adjustment method of the second driven wheel 222, but the sliding direction of the tension wheel 240 is different from the sliding direction of the second driven wheel 222. Specifically, the sliding direction of the tension wheel 240 is perpendicular to the sliding direction of the second driven wheel 222.

[0032] As mentioned above, the second track 223 is in contact with the upper surface of the photovoltaic panel. Therefore, if impurities adhere to the surface of the second track 223, they may scratch the photovoltaic panel. By setting the tension wheel 240, some impurities can be effectively removed, reducing the probability of the second track 223 scratching the photovoltaic panel. The specific installation position and size of the tension wheel 240 are not limited in this embodiment and can be set according to the actual situation.

[0033] In some embodiments of this application, reference is made to Figure 1 , Figure 5As shown, the roller brush assembly 300 includes a first roller brush 310 and a second roller brush 320, which are arranged parallel to each other and spaced apart. The first roller brush 310 is connected to the second drive member 230. The second walking module 200 also includes a third drive member 250, which is connected to the second roller brush 320. The third drive member 250 is preferably a motor. The second drive member 230 and the third drive member 250 are respectively installed at both ends of the second base frame 210. The first walking module 100 and the second walking module 200 are connected through the roller brush assembly 300. By increasing the structural strength of the roller brush assembly 300, the stability of the cleaning device in this embodiment can be ensured, thereby eliminating the main beam, frame and other structures of the traditional cleaning device, simplifying the structure, reducing costs, and reducing the overall weight of the cleaning device, thus reducing the probability of damage to the photovoltaic panel and its mounting bracket.

[0034] Reference Figure 5 As shown, the second driving member 230 simultaneously drives the first roller brush 310 to rotate and the second driving wheel 221 to rotate, which can effectively reduce the size of the equipment.

[0035] In some embodiments of this application, the photovoltaic panel cleaning device further includes a detection module 400. The detection module 400 includes a controller 410 and a boundary detection component 420. The boundary detection component 420, the first walking module 100, and the second walking module 200 are all electrically connected to the controller 410. The boundary detection component 420 is used to detect the boundary of the photovoltaic panel. The controller 410 controls the first walking module 100 and / or the second walking module 200 to move or stop based on the detection signal from the boundary detection component 420. Specifically, the boundary detection component 420 can be installed on the first walking module 100 and / or the second walking module 200 and / or the roller brush assembly 300. Referring to specific embodiments of this application... Figures 2 to 5 As shown, the controller 410 is installed on the second walking module 200. Both the first walking module 100 and the second walking module 200 are equipped with boundary detection components 420 to improve the accuracy of detection and effectively reduce the risk of the first walking module 100 or the second walking module 200 falling off the photovoltaic panel.

[0036] Reference Figures 2 to 5As shown, the boundary detection component 420 typically includes a bracket and an ultrasonic sensor. The ultrasonic sensor detects objects by emitting ultrasonic waves. The state of ultrasonic waves hitting the photovoltaic panel is different from that hitting the air. Ultrasonic waves hitting the photovoltaic panel can obtain feedback more quickly. Therefore, the state of the feedback can be used to determine whether the edge of the photovoltaic panel has been reached. When the boundary detection component 420 detects that the first walking module 100 or the second walking module 200 has reached the edge of the photovoltaic panel, the controller 410 can control the first driving element 150 and / or the second driving element 230 to stop or reverse, thereby stopping or reversing the movement of the first walking module 100 and / or the second walking module 200.

[0037] In some embodiments of this application, reference is made to Figure 2 , Figure 3 As shown, the first walking module 100 is also equipped with an attitude detection module 430, which is electrically connected to the controller 410. Specifically, the attitude detection module 430 is mainly used to detect the angle between the roller brush assembly 300 and the upper edge of the photovoltaic panel to ensure that the roller brush assembly 300 is flush with the photovoltaic panel and improve the cleaning effect. The attitude detection module 430 can be an encoder, vision inspection device, etc., and is not limited in this embodiment.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine the different embodiments or examples described in this specification.

[0039] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A photovoltaic panel cleaning device, characterized in that, include: The first walking module is located at the first end of the photovoltaic panel; The second walking module is located at the second end of the photovoltaic panel opposite to the first end; A roller brush assembly is connected to the first walking module and the second walking module. The first walking module and / or the second walking module walk along the photovoltaic panel, driving the roller brush assembly to clean the surface of the photovoltaic panel. The first walking module includes a first base frame, on which a support wheel, an auxiliary wheel, and a first track assembly are mounted. The support wheel and the auxiliary wheel are respectively disposed on the upper and lower sides of the photovoltaic panel. The support wheel is disposed above the photovoltaic panel and abuts against the upper surface of the photovoltaic panel. The auxiliary wheel is disposed below the photovoltaic panel. The first track assembly abuts against the outer wall of the photovoltaic panel. The first track assembly is connected to a first driving member that drives it to walk along the outer wall of the photovoltaic panel.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that, The auxiliary wheel is provided in two parts, and the two auxiliary wheels are respectively installed at opposite ends of the first base frame; The support wheel is provided in two parts, which are horizontally spaced apart and are positioned between the two auxiliary wheels.

3. The photovoltaic panel cleaning device according to claim 1, characterized in that, The first track assembly includes: The first drive wheel is connected to the first drive component; The first driven wheel is slidably mounted on the first base frame and can be fixed relative to the first base frame; the first driven wheel slides along the first base frame to adjust the distance between it and the first driving wheel; The first track is fitted around the outer periphery of the first driving wheel and the first driven wheel, and the first track is in contact with the outer wall of the photovoltaic panel.

4. The photovoltaic panel cleaning device according to claim 1, characterized in that, The second walking module includes: Second framework; The second track assembly is mounted on the second base frame and abuts against the upper surface of the photovoltaic panel; The second drive unit drives the second track assembly to move.

5. The photovoltaic panel cleaning device according to claim 4, characterized in that, The second track assembly includes: The second drive wheel is connected to the second drive component; The second driven wheel is slidably mounted on the second base frame and can be fixed relative to the second base frame; the second driven wheel slides along the second base frame to adjust the distance between it and the second driving wheel; The second track is fitted around the outer periphery of the second driving wheel and the second driven wheel, and the second track is in contact with the upper surface of the photovoltaic panel.

6. The photovoltaic panel cleaning device according to claim 5, characterized in that, The second walking module also includes a tensioning wheel, which is slidably mounted on the second base frame and abuts against the second track; The sliding direction of the tensioning wheel is perpendicular to the sliding direction of the second driven wheel.

7. The photovoltaic panel cleaning device according to claim 4, characterized in that, The roller brush assembly includes a first roller brush and a second roller brush, wherein the first roller brush and the second roller brush are arranged parallel to each other at intervals. The first roller brush is connected to the second driving component; The second walking module also includes a third driving component, and the second roller brush is connected to the third driving component.

8. The photovoltaic panel cleaning device according to claim 1, characterized in that, The photovoltaic panel cleaning device also includes a detection module, which includes a controller and a boundary detection component. The boundary detection component, the first walking module, and the second walking module are all electrically connected to the controller. The boundary detection component is used to detect the boundary of the photovoltaic panel, and the controller controls the first walking module and / or the second walking module to walk or stop according to the detection signal of the boundary detection component.

9. The photovoltaic panel cleaning device according to claim 8, characterized in that, Both the first walking module and the second walking module are equipped with the boundary detection component.

10. The photovoltaic panel cleaning device according to claim 8, characterized in that, The first walking module is equipped with an attitude detection module, which is electrically connected to the controller.

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