A dust flushing structure for cleaning a photovoltaic module

Abstract

The application discloses a dust flushing structure for cleaning photovoltaic modules, which comprises a main body shell, a cleaning cavity, a cleaning liquid recovery cavity, a spray cleaning liquid supply pump group, a spray cleaning mechanism, a cleaning liquid recovery mechanism and a cleaning liquid recovery suction pump group. When the photovoltaic panel of the photovoltaic module is cleaned, the opening side of the main body shell is abutted against the surface to be cleaned of the photovoltaic panel, the cleaning cavity is located on the upper side of the cleaning liquid recovery cavity, the spray cleaning liquid supply pump group supplies cleaning liquid to the spray cleaning mechanism so that the cleaning liquid is sprayed on the surface to be cleaned of the photovoltaic panel by the spray cleaning mechanism, and the cleaning liquid recovery mechanism is suctioned and recovered under the suction of the cleaning liquid recovery suction pump group, thereby effectively preventing the cleaning liquid from adversely affecting the photovoltaic panel. By means of the spray cleaning and recovery, the dust outside the photovoltaic panel can be quickly removed by the recovered liquid, and the photovoltaic panel is prevented from being scratched and other problems, thereby ensuring the power generation and absorption capacity of the photovoltaic panel and prolonging the service life of the photovoltaic panel.

Description

Technical Field

[0001] This invention specifically relates to a dust rinsing structure for cleaning photovoltaic modules, and is situated within the field of cleaning photovoltaic panels. Background Technology

[0002] Currently, with the continuous development and application of photovoltaic power generation technology, the installation of photovoltaic panels is becoming increasingly common. However, after installation, photovoltaic panels accumulate a significant amount of dust over time. Once this dust reaches a certain thickness, it can negatively impact power generation, affecting the efficiency and stability of photovoltaic power generation. Although rainwater can wash away some of the dust, in periods or areas with little rainfall, the dust often leads to lower solar power generation efficiency. Furthermore, rainwater cannot completely remove all the dust from the photovoltaic panels. While ordinary high-pressure washing can effectively improve cleaning efficiency, excessive washing fluid can lead to significant waste and can also negatively affect the photovoltaic modules, compromising the safety and reliability of the washing process. Summary of the Invention

[0003] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a dust rinsing structure for cleaning photovoltaic modules.

[0004] This invention is implemented as follows: a dust flushing structure for cleaning photovoltaic modules is constructed, comprising a main shell, a partition, a spray washing mechanism, a cleaning fluid recovery mechanism, a spray washing fluid supply pump group, and a cleaning fluid recovery suction pump group. The main shell is a rectangular box-shaped structure with an opening on one side. A partition is disposed within the main shell. The partition divides the shell cavity into a cleaning chamber and a cleaning fluid recovery chamber. The spray washing mechanism is disposed within the cleaning chamber, and the cleaning fluid recovery mechanism is disposed within the cleaning fluid recovery chamber. The cleaning fluid recovery mechanism is connected to the cleaning fluid recovery suction pump group, and the spray washing mechanism is connected to the spray washing fluid supply pump group. The end face of the partition is lower than... The height of the end face on the opening side of the main shell is adjusted to allow communication between the cleaning chamber and the cleaning fluid recovery chamber. When cleaning the photovoltaic panels of the photovoltaic module, the opening side of the main shell abuts against the surface of the photovoltaic panel to be cleaned, and the cleaning chamber is located above the cleaning fluid recovery chamber. The spray cleaning fluid supply pump group supplies cleaning fluid to the spray cleaning mechanism so that the spray cleaning mechanism can spray the cleaning fluid onto the surface of the photovoltaic panel to be cleaned. The cleaning fluid recovery mechanism, under the suction of the cleaning fluid recovery suction pump group, sucks and recovers the cleaning fluid located in the cleaning fluid recovery chamber. An operation interface is provided on the main shell, which is connected to the cleaning robotic arm or the cleaning operation rod.

[0005] Furthermore, as a preferred embodiment, a reciprocating cylinder is provided on one side of the spraying chamber on the main body shell, and the output end of the reciprocating cylinder is connected to the spraying mechanism so that the spraying mechanism can reciprocate slightly.

[0006] Furthermore, as a preferred embodiment, a rubber strip is provided on the opening wall of the main shell facing the photovoltaic panel to be cleaned, and the rubber strip makes direct, slidable contact with the surface of the photovoltaic panel to be cleaned.

[0007] Furthermore, as a preferred embodiment, the spraying mechanism includes a mounting rod, multiple spray head assemblies, and multiple wiping assemblies. The spray head assemblies are fixedly arranged at intervals on the mounting rod within the cleaning chamber. The wiping assemblies are arranged between two adjacent spray head assemblies and are rotatably mounted on the mounting rod. The spray head assemblies are capable of spraying cleaning liquid toward the surface to be cleaned and / or the wiping assemblies.

[0008] Furthermore, as a preferred embodiment, the spray head assembly includes a main pipe, a spray tube, and a spray head. The main pipe is fixedly mounted on the mounting rod, and a plurality of spray tubes arranged side by side at intervals are vertically connected to the main pipe. The spray tubes are provided with spray heads at their ends, and the spray heads are positioned toward the surface to be cleaned and / or the wiping assembly.

[0009] Furthermore, preferably, the wiping assembly includes multiple wiping rollers and wiping heads, wherein each wiping roller is rotatably mounted on the mounting rod, and each wiping roller is circumferentially arrayed with multiple sets of wiping heads, each set of wiping heads including multiple spaced-apart wiping heads, and the multiple wiping heads of each set of wiping heads extending along the axial direction of the wiping roller, and each wiping head extending along the radial direction of the wiping roller, the wiping head being a specifically elastic structure, and the mounting rod is also provided with a wiping driver for driving the wiping rollers to rotate, the wiping driver simultaneously driving each wiping roller to rotate.

[0010] Furthermore, as a preferred embodiment, a slider is fixedly provided on the mounting rod, and a slide rail is provided on the main body shell, with the slider slidably engaged on the slide rail.

[0011] Furthermore, as a preferred embodiment, the cleaning fluid recovery mechanism includes a first recovery spiral, a second recovery spiral, and edge suction holes. The first and second recovery spirals are arranged in parallel and spaced apart within the cleaning fluid recovery chamber. Inner suction holes are spaced apart at the edges of the spiral blades of the first and second recovery spirals. A main suction hole communicating with the inner suction holes is provided at the center of the first and second recovery spirals. The main suction hole is connected to the cleaning fluid recovery suction pump assembly. Multiple spaced edge suction holes are provided on the open wall of the main body shell facing the surface to be cleaned. The edge suction holes are connected to the cleaning fluid recovery suction pump assembly via flexible hoses.

[0012] Furthermore, as a preferred embodiment, the main body shell is also provided with a drive motor, which is fixedly driven connected to the central shaft of the first recovery auger. The first recovery auger and the second recovery auger are driven by a gear transmission mechanism so that the drive motor can simultaneously drive the first recovery auger and the second recovery auger to rotate in the cleaning liquid recovery chamber.

[0013] Furthermore, the present invention also provides a photovoltaic module cleaning method, which uses the dust flushing structure for photovoltaic module cleaning described in the present invention for cleaning, characterized by comprising the following steps:

[0014] Step (1): Connect the main body shell to the cleaning robot arm or cleaning operation rod using the operation interface on it, connect the spray cleaning liquid supply pump group to the spray cleaning mechanism, and connect the cleaning liquid recovery mechanism to the cleaning liquid recovery suction pump group.

[0015] Step (2): Place the open side of the main shell against the surface of the photovoltaic panel to be cleaned, and turn on the spray cleaning liquid supply pump group and the cleaning liquid recovery suction pump group for cleaning and recovery. During cleaning, the spray head assembly of the spray cleaning mechanism sprays cleaning liquid toward the surface to be cleaned and / or the wiping assembly. At the same time, the wiping driver of the wiping assembly drives each wiping roller to rotate, and the wiping head on the wiping roller wipes and cleans the surface to be cleaned. During the cleaning process, the cleaning liquid in the cleaning chamber flows downward to the cleaning liquid recovery chamber. The cleaning liquid recovery mechanism in the cleaning liquid recovery chamber recovers the cleaning liquid. During the recovery, the first recovery screw and the second recovery screw realize the suction and recovery of the cleaning liquid at different positions when they rotate. The edge suction hole can further suction and recover the recovered liquid flowing to the edge to prevent adverse effects on the photovoltaic panel.

[0016] Step (3): While performing step (2), move the main body shell to clean different positions of the photovoltaic panel by cleaning the robotic arm or cleaning rod.

[0017] The present invention has the following advantages: The dust rinsing structure for cleaning photovoltaic modules provided by the present invention has the following advantages compared with similar equipment:

[0018] (1) The dust flushing structure for cleaning photovoltaic modules according to the present invention, when cleaning the photovoltaic panel of the photovoltaic module, the opening side of the main shell abuts against the surface of the photovoltaic panel to be cleaned, and the cleaning chamber is located above the cleaning liquid recovery chamber. The spray cleaning liquid supply pump group supplies cleaning liquid to the spray cleaning mechanism so that the spray cleaning mechanism can spray the cleaning liquid onto the surface of the photovoltaic panel to be cleaned. The cleaning liquid recovery mechanism is drawn and recovered by the cleaning liquid recovery suction pump group, which effectively prevents the cleaning liquid from having an adverse effect on the photovoltaic panel. By using the spray cleaning and recovery method, the dust on the outside of the photovoltaic panel can be quickly removed by the recovered liquid, and the scratches on the photovoltaic panel can be prevented, thus ensuring the power generation absorption capacity of the photovoltaic panel and improving the life of the photovoltaic panel.

[0019] (2) The present invention has a simple structure and can effectively spray and wash while recovering the spraying liquid. The spraying liquid will not flow out of the main shell, effectively protecting the photovoltaic panel, improving the cleaning ability while protecting the protective effect, and can quickly achieve automatic cleaning of the photovoltaic panel, thus improving efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional axonometric structure of the present invention;

[0022] Figure 3 This is the invention Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is the invention Figure 2 A magnified structural diagram at point B in the middle. Detailed Implementation

[0024] The following will be combined with the appendix Figures 1-4 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] This invention provides an improved dust rinsing structure for cleaning photovoltaic modules, comprising a main shell 9, a partition, a spray washing mechanism 3, a cleaning fluid recovery mechanism, a spray washing fluid supply pump group, and a cleaning fluid recovery suction pump group. The main shell 9 is a rectangular box-shaped structure with an opening on one side. A partition is provided inside the main shell, dividing the shell cavity into a cleaning chamber and a cleaning fluid recovery chamber. The spray washing mechanism 3 is located in the cleaning chamber, and the cleaning fluid recovery mechanism is located in the cleaning fluid recovery chamber. The cleaning fluid recovery mechanism is connected to the cleaning fluid recovery suction pump group, and the spray washing mechanism is connected to the spray washing fluid supply pump group. The supply pump group is connected, and the end face of the partition is lower than the end face of the opening side of the main body shell so that the cleaning chamber and the cleaning liquid recovery chamber can be connected. When cleaning the photovoltaic panel of the photovoltaic module, the opening side of the main body shell abuts against the surface of the photovoltaic panel to be cleaned, and the cleaning chamber is located above the cleaning liquid recovery chamber. The spray cleaning liquid supply pump group supplies cleaning liquid to the spray cleaning mechanism so that the spray cleaning mechanism can spray the cleaning liquid onto the surface of the photovoltaic panel to be cleaned. The cleaning liquid recovery mechanism draws and recovers the cleaning liquid located in the cleaning liquid recovery chamber under the suction of the cleaning liquid recovery suction pump group.

[0026] In this embodiment, a reciprocating cylinder 5 is provided on one side of the spraying chamber on the main body shell. The output end of the reciprocating cylinder 5 is connected to the spraying mechanism 3 so that the spraying mechanism can reciprocate slightly.

[0027] A rubber strip is provided on the opening wall of the main shell 9 facing the photovoltaic panel to be cleaned, and the rubber strip makes direct and slidable contact with the surface of the photovoltaic panel to be cleaned.

[0028] The spraying mechanism includes a mounting rod, multiple spray head assemblies, and multiple wiping assemblies 13. The spray head assemblies are fixedly arranged at intervals on the mounting rod inside the cleaning chamber. The wiping assemblies are arranged between two adjacent spray head assemblies, and the wiping assemblies 13 are rotatably mounted on the mounting rod. The spray head assemblies are capable of spraying cleaning liquid toward the surface to be cleaned and / or the wiping assemblies.

[0029] The spray head assembly includes a main pipe, spray tubes 16, and spray heads. The main pipe is fixedly mounted on the mounting rod. Multiple spray tubes 16 arranged side by side at intervals are vertically connected to the main pipe. Spray heads are provided at the ends of the spray tubes and are positioned toward the surface to be cleaned and / or the wiping assembly.

[0030] The wiping assembly 13 includes multiple wiping rollers 15 and wiping heads 14. Each wiping roller is rotatably mounted on the mounting rod. Each wiping roller has multiple sets of wiping heads arranged in a circumferential array. Each set of wiping heads includes multiple wiping heads 14 arranged at intervals. The multiple wiping heads 14 in each set of wiping heads extend along the axial direction of the wiping roller 15, and each wiping head extends along the radial direction of the wiping roller. The wiping head is a flexible structure. The mounting rod is also provided with a wiping driver that drives the wiping rollers to rotate. The wiping driver simultaneously drives each wiping roller to rotate.

[0031] A slider 4 is fixedly mounted on the mounting rod, and a slide rail is provided on the main body shell 9. The slider slides on the slide rail.

[0032] The cleaning fluid recovery mechanism includes a first recovery spiral 8, a second recovery spiral 10, and an edge suction port 11. The first recovery spiral 8 and the second recovery spiral 10 are arranged in parallel and spaced apart in the cleaning fluid recovery chamber. The edges 12 of the spiral blades 17 of the first recovery spiral 8 and the second recovery spiral 10 are provided with internal suction ports 18 at intervals. The center of the first recovery spiral and the second recovery spiral is provided with a main suction port that communicates with the internal suction port. The main suction port is connected to the cleaning fluid recovery suction pump group. The opening wall of the main body shell facing the surface to be cleaned is provided with a plurality of spaced edge suction ports. The edge suction ports are connected to the cleaning fluid recovery suction pump group through hoses.

[0033] The main body shell is also provided with a drive motor 6, which is fixedly driven to the central shaft of the first recovery spiral 8. The first recovery spiral 8 and the second recovery spiral 10 are driven by a gear transmission mechanism 1 so that the drive motor can simultaneously drive the first recovery spiral and the second recovery spiral to rotate in the cleaning liquid recovery chamber.

[0034] The main body shell is provided with an operation interface, which is connected to the cleaning robotic arm or the cleaning operation rod.

[0035] Furthermore, the present invention also provides a photovoltaic module cleaning method, which uses a dust flushing structure for photovoltaic module cleaning as described in the present invention for cleaning, characterized by comprising the following steps:

[0036] Step (1): Connect the main body shell to the cleaning robot arm or cleaning operation rod using the operation interface on it, connect the spray cleaning liquid supply pump group to the spray cleaning mechanism, and connect the cleaning liquid recovery mechanism to the cleaning liquid recovery suction pump group.

[0037] Step (2): Place the open side of the main shell against the surface of the photovoltaic panel to be cleaned, and turn on the spray cleaning liquid supply pump group and the cleaning liquid recovery suction pump group for cleaning and recovery. During cleaning, the spray head assembly of the spray cleaning mechanism sprays cleaning liquid toward the surface to be cleaned and / or the wiping assembly. At the same time, the wiping driver of the wiping assembly drives each wiping roller to rotate, and the wiping head on the wiping roller wipes and cleans the surface to be cleaned. During the cleaning process, the cleaning liquid in the cleaning chamber flows downward to the cleaning liquid recovery chamber. The cleaning liquid recovery mechanism in the cleaning liquid recovery chamber recovers the cleaning liquid. During the recovery, the first recovery screw and the second recovery screw realize the suction and recovery of the cleaning liquid at different positions when they rotate. The edge suction hole can further suction and recover the recovered liquid flowing to the edge to prevent adverse effects on the photovoltaic panel.

[0038] Step (3): While performing step (2), move the main body shell to clean different positions of the photovoltaic panel by cleaning the robotic arm or cleaning rod.

[0039] In this invention, when cleaning the photovoltaic panels of a photovoltaic module, the opening side of the main shell abuts against the surface of the photovoltaic panel to be cleaned, and the cleaning chamber is located above the cleaning liquid recovery chamber. The spray cleaning liquid supply pump group supplies cleaning liquid to the spray cleaning mechanism so that the spray cleaning mechanism can spray the cleaning liquid onto the surface of the photovoltaic panel to be cleaned. The cleaning liquid recovery mechanism, under the suction of the cleaning liquid recovery suction pump group, sucks and recovers the cleaning liquid located in the cleaning liquid recovery chamber, effectively preventing the cleaning liquid from adversely affecting the photovoltaic panel. By using the spray cleaning and recovery method, dust on the outside of the photovoltaic panel can be quickly removed using the recovered liquid, while preventing scratches and other problems, ensuring the power generation absorption capacity of the photovoltaic panel and improving its lifespan. This invention has a simple structure and can effectively spray cleaning and recover the spray cleaning liquid simultaneously. The spray cleaning liquid will not flow out of the main shell, effectively protecting the photovoltaic panel, improving cleaning capacity while maintaining protective effect, and enabling rapid automatic cleaning of photovoltaic panels, thus improving efficiency.

[0040] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust flushing structure for cleaning photovoltaic modules, comprising a main shell, a partition, a spraying mechanism, a cleaning fluid recovery mechanism, a spraying fluid supply pump group, and a cleaning fluid recovery suction pump group, wherein, The main shell is a rectangular box-shaped structure with an opening on one side. A partition is provided inside the main shell. The partition divides the shell cavity into a cleaning chamber and a cleaning fluid recovery chamber. The cleaning chamber houses the spraying mechanism, and the cleaning fluid recovery chamber houses the cleaning fluid recovery mechanism. The cleaning fluid recovery mechanism is connected to a cleaning fluid recovery suction pump assembly, and the spraying mechanism is connected to a spraying fluid supply pump assembly. The end face of the partition is lower than the end face of the opening side of the main shell, allowing communication between the cleaning chamber and the cleaning fluid recovery chamber. When cleaning the photovoltaic panels of a photovoltaic module, the opening side of the main body shell abuts against the surface of the photovoltaic panel to be cleaned, and the cleaning chamber is located above the cleaning liquid recovery chamber. The spray cleaning liquid supply pump group supplies cleaning liquid to the spray cleaning mechanism so that the spray cleaning mechanism can spray the cleaning liquid onto the surface of the photovoltaic panel to be cleaned. The cleaning liquid recovery mechanism, under the suction of the cleaning liquid recovery suction pump group, sucks and recovers the cleaning liquid located in the cleaning liquid recovery chamber. The main body shell is provided with an operation interface, which is connected to a cleaning robotic arm or a cleaning operation rod. The spraying mechanism includes a mounting rod, multiple spray head assemblies, and multiple wiping assemblies. The spray head assemblies are fixedly arranged at intervals on the mounting rod inside the cleaning chamber. The wiping assemblies are arranged between two adjacent spray head assemblies and are rotatably mounted on the mounting rod. The spray head assemblies are capable of spraying cleaning liquid toward the surface to be cleaned and / or the wiping assemblies. The cleaning fluid recovery mechanism includes a first recovery spiral, a second recovery spiral, and edge suction holes. The first and second recovery spirals are arranged in parallel and spaced apart in the cleaning fluid recovery chamber. The edges of the spiral blades of the first and second recovery spirals are provided with internal suction holes at intervals. The center of the first and second recovery spirals is provided with a main suction hole that communicates with the internal suction holes. The main suction hole is connected to the cleaning fluid recovery suction pump assembly. Multiple edge suction holes are provided on the open wall of the main body facing the surface to be cleaned. The edge suction holes are connected to the cleaning fluid recovery suction pump assembly through flexible hoses.

2. The dust rinsing structure for cleaning photovoltaic modules according to claim 1, characterized in that: A reciprocating cylinder is provided on one side of the spraying mechanism on the main body shell. The output end of the reciprocating cylinder is connected to the spraying mechanism so that the spraying mechanism can reciprocate slightly.

3. The dust rinsing structure for cleaning photovoltaic modules according to claim 2, characterized in that: A rubber strip is provided on the opening wall of the main shell facing the photovoltaic panel to be cleaned, and the rubber strip makes direct and slidable contact with the surface of the photovoltaic panel to be cleaned.

4. The dust rinsing structure for cleaning photovoltaic modules according to claim 1, characterized in that: The spray head assembly includes a main pipe, a spray tube, and a spray head. The main pipe is fixedly mounted on the mounting rod. Multiple spray tubes arranged side by side at intervals are vertically connected to the main pipe. The spray head is provided at the end of each spray tube and is positioned towards the surface to be cleaned and / or the wiping assembly.

5. The dust rinsing structure for cleaning photovoltaic modules according to claim 4, characterized in that: The wiping assembly includes multiple wiping rollers and wiping heads. Each wiping roller is rotatably mounted on the mounting rod. Each wiping roller has multiple sets of wiping heads arranged in a circumferential array. Each set of wiping heads includes multiple wiping heads arranged at intervals. The multiple wiping heads of each set of wiping heads extend along the axial direction of the wiping roller, and each wiping head extends along the radial direction of the wiping roller. The wiping head has an elastic structure. The mounting rod is also provided with a wiping driver that drives the wiping rollers to rotate. The wiping driver simultaneously drives each wiping roller to rotate.

6. The dust rinsing structure for cleaning photovoltaic modules according to claim 4, characterized in that: A slider is fixedly mounted on the mounting rod, and a slide rail is provided on the main body shell, with the slider slidably engaged on the slide rail.

7. The dust rinsing structure for cleaning photovoltaic modules according to claim 1, characterized in that: The main shell is also equipped with a drive motor, which is fixedly connected to the central shaft of the first recovery auger. The first recovery auger and the second recovery auger are connected by a gear transmission mechanism so that the drive motor can simultaneously drive the first recovery auger and the second recovery auger to rotate in the cleaning liquid recovery chamber.

8. A method for cleaning photovoltaic modules, comprising using the dust flushing structure for cleaning photovoltaic modules as described in any one of claims 1-7, characterized in that: It includes the following steps: Step (1): Connect the main body shell to the cleaning robot arm or cleaning operation rod using the operation interface on it, connect the spray cleaning liquid supply pump group to the spray cleaning mechanism, and connect the cleaning liquid recovery mechanism to the cleaning liquid recovery suction pump group. Step (2): Place the open side of the main shell against the surface of the photovoltaic panel to be cleaned, and turn on the spray cleaning liquid supply pump group and the cleaning liquid recovery suction pump group for cleaning and recovery. During cleaning, the spray head assembly of the spray cleaning mechanism sprays cleaning liquid toward the surface to be cleaned and / or the wiping assembly. At the same time, the wiping driver of the wiping assembly drives each wiping roller to rotate, and the wiping head on the wiping roller wipes and cleans the surface to be cleaned. During the cleaning process, the cleaning liquid in the cleaning chamber flows downward to the cleaning liquid recovery chamber. The cleaning liquid recovery mechanism in the cleaning liquid recovery chamber recovers the cleaning liquid. During the recovery, the first recovery screw and the second recovery screw realize the suction and recovery of the cleaning liquid at different positions when they rotate. The edge suction hole can further suction and recover the recovered liquid flowing to the edge to prevent adverse effects on the photovoltaic panel. Step (3): While performing step (2), move the main body shell to clean different positions of the photovoltaic panel by cleaning the robotic arm or cleaning rod.

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