Solar panel cleaning equipment and cleaning method thereof

Abstract

The invention discloses solar panel cleaning equipment, belongs to the technical field of solar panel cleaning, and solves the problem of poor cleaning efficiency in the prior art. The cleaning equipment comprises a cleaning unit and a wiping unit, the cleaning unit comprises an electric push rod and a cleaning strip, and the cleaning strip is arranged on the surface of a solar panel; the electric push rod is connected with an arc-shaped rod, the tail end of the arc-shaped rod is rotationally connected with cleaning strips, the cleaning strips are sequentially connected through connecting rods, and the electric push rod works to drive the cleaning strips to deflect, so that the solar panel is wiped in multiple directions, and the cleaning effect is guaranteed. The cleaning unit drains airflow to the surface of the solar panel through the fan to blow away dust, and the cleaning equipment can move on the surface of the solar panel along with the walking system and the driving system, so that the problem of cleaning dead corners is avoided, and the cleaning effect is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of solar panel cleaning technology, and relates to a solar panel cleaning device and its cleaning method. Background Technology

[0002] Photovoltaic power generation, as a clean and renewable energy source, has been widely used globally, especially in the Gobi Desert region of Northwest my country, where numerous large-scale centralized photovoltaic power plants have been built due to the flat and vast terrain and abundant photovoltaic resources. However, the Northwest region experiences severe wind and sand activity, and during the normal operation of photovoltaic power plants, solar panels are often affected by the deposition of dust and pollutants in the atmosphere, seriously affecting their power generation efficiency. Therefore, effectively cleaning solar panels to increase photovoltaic power generation is particularly important.

[0003] Therefore, research on cleaning solar panels is increasing. Existing technologies use cleaning mechanisms to clean solar panels. For example, Chinese invention patent CN104993784A discloses a solar panel cleaning device. This device includes rollers extending along the ends of the solar panel, each roller equipped with a brush. Parallel guide rails are provided on both sides of the solar panel, allowing the rollers to move along the guide rails to clean the solar panel. However, the brushes on the rollers only contact the solar panel, and the rotation of the rollers only allows for unidirectional wiping, resulting in low cleaning efficiency and an unsatisfactory cleaning effect. Additionally, Chinese invention patent CN118199506A discloses a method for preventing... A cleaning device for sputtered solar panels includes a mounting cover connected to one side of the solar panel, a mounting base on one side of the mounting cover, and a drive mechanism inside the mounting cover that moves the mounting base along the surface of the solar panel. The drive mechanism moves the mounting base across the solar panel surface. Additionally, a rinsing nozzle is located below the mounting base, and splash guards are located on both sides of the mounting base. The rinsing nozzle rinses the surface of the solar panel, and the splash guards move with the mounting base to clean the surface. This device cleans the solar panel by rinsing and wiping. However, water spraying results in water stains, and the wiping method is unidirectional, leading to less than ideal cleaning of the solar panel.

[0004] Therefore, the present invention aims to provide a cleaning device for solar panels, which changes the one-way wiping cleaning method in the prior art and improves the cleaning effect on solar panels. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A solar panel cleaning device includes a cleaning system that can move along the surface of a solar panel. The cleaning system includes a cleaning unit and a wiping unit. The wiping unit includes an electric push rod connected to the lower surface of the cleaning unit and a cleaning strip located on the surface of the solar panel. The cleaning strip is connected in sequence by a connecting rod, and the connecting rod and the cleaning strip are rotatably connected. An arc-shaped rod is rotatably connected to the power end of the electric push rod. The end of the arc-shaped rod is rotatably connected to the cleaning strip on the side away from the electric push rod. When the electric push rod extends or retracts, it drives the cleaning strip to deflect through the arc-shaped rod to perform multi-directional wiping of the surface of the solar panel. The cleaning unit is used to blow away the dust generated by the wiping unit.

[0008] Preferably, in the above-mentioned solar panel cleaning equipment, when the cleaning strip deflects, the distance between adjacent cleaning strips increases or decreases, thereby realizing that the cleaning strip can simultaneously wipe the surface of the solar panel in both the longitudinal and transverse directions.

[0009] Preferably, in the above-mentioned solar panel cleaning equipment, the cleaning unit includes a housing, a fixing frame is installed inside the housing, a fan is installed on the fixing frame, and an air outlet is opened on the housing. The airflow generated by the fan blows from the air outlet onto the surface of the solar panel.

[0010] Preferably, in the above-mentioned solar panel cleaning equipment, the housing is further provided with a connecting frame, the connecting frame is mounted on the lower surface of the fixed frame, a connecting plate is installed on the connecting frame, a pressing block is connected to the connecting plate, and an opening is provided on the lower surface of the housing, through which the pressing block presses against the surface of the cleaning strip.

[0011] Preferably, in the above-mentioned solar panel cleaning equipment, there is a cavity between the fixing frame and the connecting frame, and a spring is installed in the cavity. The spring is in a compressed state, and the spring drives the pressing block to press tightly against the surface of the cleaning strip due to the elastic force of the spring.

[0012] Preferably, in the above-mentioned solar panel cleaning equipment, the connecting frame is also equipped with a power supply, which is used to supply power to the electrical components in the cleaning equipment, and the power supply also acts as a counterweight to drive the pressing block to press tightly against the surface of the cleaning strip.

[0013] Preferably, the solar panel cleaning equipment described above further includes a walking system and a drive system. The walking system is used to drive the cleaning system to move along the length direction of the solar panel, and the drive system is used to drive the cleaning system to move along the width direction of the solar panel.

[0014] The solar panel has guide rails on its sidewalls along the walking direction of the walking system. The walking system includes a frame symmetrically arranged on the solar panel guide rails. One side of the frame is open, and the guide rails on the solar panel enter the opening. Suspension wheels are installed on the top wall of the frame opening, which suspends the walking system on the solar panel guide rails. A rotating rod is rotatably installed inside the frame, and a walking wheel is installed on the rotating rod. The walking wheel abuts against the sidewall of the guide rail. A walking drive motor is installed inside the frame. The walking drive motor can drive the rotating rod to rotate and move the walking wheel along the length of the solar panel through the engagement of bevel gears.

[0015] The drive system includes a distance drive motor and a threaded rod connected to the output end of the distance drive motor. The distance drive motor is mounted on the frame, and one end of the threaded rod is connected to the output end of the distance drive motor. The other end passes through the cleaning system and is rotatably mounted on the walking system on the other side. The cleaning system is threaded onto the threaded rod. A fixed guide rail is also installed between the frames. The fixed guide rail passes through the cleaning system and is slidably mounted with the cleaning system.

[0016] Another aspect of the present invention provides a method for cleaning solar panels using the aforementioned cleaning equipment, comprising the following steps:

[0017] The electric push rod in the wiping unit drives the cleaning strip to deflect through the arc rod. During the deflection process, the cleaning strip wipes the surface of the solar panel. The deflection of the cleaning strip changes the distance between adjacent cleaning strips, allowing the cleaning strip to wipe the surface of the solar panel both longitudinally and laterally.

[0018] The cleaning unit includes a housing with a fan installed inside. An air outlet is provided on the housing. The airflow generated by the fan blows from the air outlet onto the surface of the solar panel, blowing away the dust generated by the wiping unit.

[0019] Preferably, in the above-described cleaning method, the solar panel cleaning equipment further includes a walking system. The walking system includes a frame symmetrically arranged on guide rails on both sides of the solar panel. One side of the frame is open, and the guide rails on the solar panel enter the opening. Suspension wheels are installed on the top wall of the opening of the frame, allowing the walking system to be suspended on the guide rails of the solar panel. A rotating rod is rotatably installed inside the frame, and a walking wheel is installed on the rotating rod. The walking wheel abuts against the side wall of the guide rail. A walking drive motor is installed inside the frame. The walking drive motor, through the engagement of bevel gears, can drive the rotating rod to rotate and move along the length of the solar panel, thereby allowing the cleaning system to move along the length of the solar panel to clean the solar panel.

[0020] Preferably, in the above-described cleaning method, the solar panel cleaning equipment further includes a drive system. The drive system includes a distance drive motor and a threaded rod connected to the output end of the distance drive motor. The distance drive motor is mounted on the frame, and one end of the threaded rod is connected to the output end of the distance drive motor. The other end passes through the cleaning system and is rotatably mounted on the walking system on the other side. The cleaning system is threaded onto the threaded rod. A fixed guide rail is also installed between the frames. The fixed guide rail passes through the cleaning system and is slidably mounted with the cleaning system. When the distance drive motor operates, it drives the threaded rod to rotate, causing the cleaning system to move along the width direction of the solar panel to clean the solar panel.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] (1) The cleaning device in this invention includes a cleaning unit and a wiping unit. The electric push rod in the wiping unit can drive the cleaning strip to deflect on the surface of the solar panel through the arc rod. When the cleaning strip deflects, it can wipe the surface of the solar panel in the longitudinal and transverse directions, avoiding the problem of incomplete cleaning caused by unidirectional wiping of the solar panel in the prior art, and ensuring the cleaning effect. In addition, the cleaning unit in this invention is also equipped with a fan. The fan can blow airflow from the air outlet to the surface of the solar panel to blow away the dust generated by wiping, ensuring the cleaning effect of the solar panel.

[0023] (2) The cleaning unit of the present invention is also provided with a fixing frame and a connecting frame. A spring is provided between the fixing frame and the connecting frame. The spring is in a compressed state. A connecting plate is connected to the connecting frame. A pressing block is installed on the connecting plate. The pressing block passes through the cleaning unit and presses against the surface of the cleaning strip. The spring causes the pressing block to always drive the cleaning strip to press against the surface of the solar panel. In addition, a power supply is also installed on the connecting frame. The power supply serves as both a power supply and a counterweight, so that the pressing block presses tightly against the cleaning strip, ensuring that the cleaning strip is in close contact with the solar panel and ensuring the cleaning effect.

[0024] (3) The cleaning equipment in this invention also includes a walking system and a driving system. The walking system is used to drive the cleaning unit and the wiping unit to move along the length of the solar panel, and the driving system is used to drive the cleaning unit and the wiping unit to move along the width of the solar panel, thereby avoiding the problem of cleaning dead corners and ensuring the cleaning effect on the solar panel. In addition, the cleaning equipment in this invention is also equipped with a raindrop sensor and a distance sensor. In rainy weather, the cleaning of the solar panel is avoided, and water stains are avoided. In addition, the distance sensor is used to prevent the cleaning equipment from falling on the surface of the solar panel. The cleaning unit in this invention is also equipped with a thin-film solar photovoltaic panel. The thin-film solar photovoltaic panel can convert solar energy into electrical energy and store it in the power supply, thereby powering the electrical components in the cleaning equipment and effectively utilizing renewable energy. Attached Figure Description

[0025] Figure 1 This is an assembly effect diagram of the cleaning equipment and solar panel in this invention;

[0026] Figure 2 for Figure 1 The front view;

[0027] Figure 3 for Figure 2 A schematic diagram of a local structure in the image;

[0028] Figure 4 This is a schematic diagram of the cleaning equipment in this invention;

[0029] Figure 5 This is a diagram showing the disassembled cleaning unit and wiping unit in this invention.

[0030] Figure 6 This is a schematic diagram of the wiping unit in this invention;

[0031] Figure 7 This is a schematic diagram of the cleaning unit in this invention;

[0032] Figure 8 This is a cross-sectional view of the cleaning unit in this invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of the cleaning unit in this invention.

[0034] The correspondence between the labels and component names in the attached figures is as follows:

[0035] 100. Walking system; 200. Drive system; 300. Cleaning system;

[0036] 101. Frame; 102. Rotating rod; 103. Traveling wheel; 104. Travel drive motor; 105. Suspension wheel;

[0037] 201. Distance drive motor; 202. Threaded rod; 203. Fixed guide rail;

[0038] 301. Cleaning unit; 302. Wiping unit;

[0039] 301a, Housing; 301b, Air outlet; 301c, Mounting bracket; 301d, Connecting bracket; 301e, Connecting plate; 301f, Pressing block; 301g, Spring; 301m, Power supply; 301n, Fan;

[0040] 302a, Cleaning strip; 302b, Connecting rod; 302c, Electric push rod; 302d, Curved rod. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. The present invention provides the following embodiments.

[0044] like Figure 1 as well as Figure 2 As shown, this is a schematic diagram of the cleaning equipment assembled on the solar panel in this embodiment. The cleaning equipment in this embodiment is used to clean the solar panel, thereby ensuring the cleanliness of the solar panel and ensuring the efficiency of its use.

[0045] In this embodiment, guide rails are provided on both sides of the solar panel. The cleaning device is placed on the surface of the solar panel and can move along the solar panel to clean it. The cleaning device in this embodiment includes a walking system 100 symmetrically installed on both sides of the solar panel. A drive system 200 is connected between the walking systems 100, and a cleaning system 300 is installed on the drive system 200. In this embodiment, the walking system 100 moves along the length direction of the solar panel to drive the cleaning system 300 to move along the length direction of the solar panel. The drive system 200 can drive the cleaning system 300 to move along the width direction of the solar panel. In this embodiment, the walking system 100 and the drive system 200 can drive the cleaning system 300 to move on the surface of the solar panel to clean it.

[0046] like Figure 3 As shown, the walking system 100 in this embodiment includes a frame 101 symmetrically arranged on the solar panel guide rail. One side of the frame 101 is open, and the guide rail on the solar panel enters the opening. A suspension wheel 105 is installed on the top wall of the opening of the frame 101, which allows the walking system 100 to be suspended on the solar panel guide rail. In addition, a rotating rod 102 is rotatably installed inside the frame 101, and a walking wheel 103 is installed on the rotating rod 102. The walking wheel 103 abuts against the side wall of the guide rail. In this embodiment, a walking drive motor 104 is installed inside the frame 101. The walking drive motor 104 can drive the rotating rod 102 to rotate the walking wheel 103 through the cooperation of bevel gears, thereby realizing walking along the length direction of the solar panel and adjusting the position of the cleaning system 300 on the solar panel.

[0047] like Figure 4 as well as Figure 5 As shown, in this embodiment, the drive system 200 includes a distance drive motor 201 and a threaded rod 202 connected to the output end of the distance drive motor 201. In this embodiment, the distance drive motor 201 is mounted on the frame 101, and one end of the threaded rod 202 is connected to the output end of the distance drive motor 201, while the other end passes through the cleaning system 300 and is rotatably mounted on the walking system 100 on the other side. The cleaning system 300 is threadedly mounted on the threaded rod 202. In this embodiment, a fixed guide rail 203 is also installed between the frames 101, passing through the cleaning system 300 and slidably mounted with it. In this embodiment, the distance drive motor 201 drives the threaded rod 202 to rotate, and the rotation of the threaded rod 202 can drive the cleaning system 300 to move along the width direction of the solar panel, thereby adjusting the position of the cleaning system 300.

[0048] like Figure 5As shown, the cleaning system 300 in this embodiment includes a cleaning unit 301 and a wiping unit 302. In this embodiment, the wiping unit 302 abuts against the surface of the solar panel and wipes the surface of the solar panel. The cleaning unit 301 is used to blow away the dust generated after wiping by the wiping unit 302, thereby achieving the purpose of cleaning the solar panel.

[0049] like Figure 5 as well as Figure 6 As shown, in this embodiment, the wiping unit 302 is installed below the cleaning unit 301. The wiping unit 302 includes an electric push rod 302c installed on the lower surface of the cleaning unit 301 and cleaning strips 302a located on the surface of the solar panel. The cleaning strips 302a are arranged side by side and connected sequentially by connecting rods 302b. The connecting rods 302b and the cleaning strips 302a are rotatably connected. It is worth noting that in this embodiment, an arc-shaped rod 302d is rotatably connected to the end of the electric push rod 302c. The other end of the arc-shaped rod 302d is rotatably connected to the cleaning strips 302a away from the electric push rod 302c. When it is necessary to wipe the solar panel, the electric push rod 302c extends or retracts. The arc-shaped rod 302d drives the cleaning strip 302a connected to it to deflect relative to its adjacent cleaning strip 302a. During the deflection process, the cleaning strips 302a move away from or closer to each other. At the same time, the connecting rod 302b and the cleaning strip 302a rotate relative to each other, thereby realizing that the cleaning strips 302a deflect on the surface of the solar panel and achieve synchronous wiping in both the longitudinal and lateral directions. When the wiping unit 302 moves with the walking system 100, the cleaning strips 302a wipe the local area of ​​the solar panel multiple times due to moving away from or closer to each other, including forward wiping and reverse wiping, which improves the cleaning efficiency of the solar panel and solves the defect of only unidirectional wiping in the prior art, thus ensuring the cleaning effect.

[0050] In addition, such as Figure 4 , Figure 5 as well as Figure 7 As shown, in this embodiment, a cleaning unit 301 is also provided above the wiping unit 302. After the wiping unit 302 wipes the dust off the surface of the solar panel, the cleaning unit 301 blows away the dust, thus ensuring the cleaning effect on the solar panel. Figure 7 , Figure 8 as well as Figure 9As shown, the cleaning unit 301 in this embodiment also includes a housing 301a, an electric push rod 302c installed on the lower surface of the housing 301a, a threaded rod 202 passing through the housing 301a and threadedly assembled with the housing 301a, and a fixed guide rail 203 passing through the housing 301a and slidably assembled with the housing 301a. In this embodiment, the bottom of the housing 301a is symmetrically and inclinedly provided with an air outlet 301b, and the blowing gas is sprayed through the air outlet 301b onto the surface of the solar panel to blow away the dust on the surface of the solar panel.

[0051] like Figure 8 as well as Figure 9 As shown, in this embodiment, a fixing frame 301c is fixedly installed inside the housing 301a. A connecting frame 301d is also mounted on the lower surface of the fixing frame 301c. In this embodiment, there is a cavity between the connecting frame 301d and the fixing frame 301c. A spring 301g is also installed in the cavity and is in a compressed state. In addition, a connecting plate 301e is connected to the connecting frame 301d, and a pressing block 301f is connected to the connecting plate 301e. An opening is provided on the housing 301a, and the pressing block 301f passes through the opening and presses against the surface of the cleaning strip 302a. In this embodiment, since the spring 301g is in a compressed state, the elastic force drives the connecting frame 301d and the fixing frame 301c to fit tightly together. On the other hand, it also makes the pressing block 301f on the connecting plate 301e press tightly against the surface of the cleaning strip 302a, thus avoiding the problem of the cleaning strip 302a separating from the solar panel and failing to perform the cleaning function.

[0052] It is worth noting that the connecting frame 301d is also equipped with a power supply 301m. The power supply 301m is used to supply power to the electrical components in the cleaning equipment. On the other hand, the cleaning equipment can also act as a counterweight, increasing the weight of the connecting frame 301d and ensuring the effect of the pressure block 301f pressing against the cleaning strip 302a, further preventing the cleaning strip 302a from separating from the surface of the solar panel.

[0053] like Figure 9 As shown, in this embodiment, fans 301n are symmetrically installed on the mounting bracket 301c. When the fan 301n is working, it can spray airflow from the air outlet 302b of the housing 301a, so that the dust generated after wiping by the wiping unit 302 is blown away by the airflow, which can achieve efficient cleaning of the solar panel and ensure the cleaning effect.

[0054] It is also worth noting that the surface of the housing 301a in this embodiment is also provided with a thin-film solar photovoltaic panel. The thin-film solar photovoltaic panel can convert solar energy into electrical energy and store it in the power supply 301m, thereby powering the electrical components in the cleaning equipment. In addition, a rain sensor is also provided on the housing 301a. When the rain sensor detects rain, it stops cleaning the solar panel. On the one hand, it avoids the problem of water stains on the solar panel during cleaning. On the other hand, the cleaning equipment stops working when the solar panel is cleaned by rainwater, thus ensuring the service life of the cleaning equipment. In addition, a distance sensor is also provided on the walking system 100. The distance sensor is used to sense the walking distance of the cleaning equipment. After reaching a preset value, it moves in the opposite direction, thereby realizing the reciprocating movement of the cleaning equipment on the solar panel.

[0055] This embodiment also provides a method for cleaning solar panels using the aforementioned cleaning equipment. Specifically, the walking system 100 drives the cleaning system 300 to move along the length of the solar panel on its surface, while the driving system 200 drives the cleaning system 300 to move along the width of the solar panel. At the same time, the wiping unit 302 in the cleaning system 300 performs multi-directional wiping on the solar panel, and the cleaning unit 301 blows away the dust generated by the wiping unit 302 to achieve the cleaning purpose.

[0056] The specific wiping steps of the wiping unit 302 are as follows: the electric push rod 302c extends or shortens, and the arc rod 302d drives the cleaning strip 302a to deflect. During the deflection process, the cleaning strips 302a move away from or closer to each other, and the cleaning strips 302a wipe the surface of the solar panel in both longitudinal and transverse directions at the same time, thereby realizing multi-directional wiping, ensuring the wiping effect and improving cleaning efficiency.

[0057] The fan 301n in the cleaning unit 301 blows airflow from the air outlet 301b onto the surface of the solar panel, blowing away the dust generated by the wiping unit 302, thus ensuring the cleaning effect of the cleaning equipment on the solar panel.

[0058] In addition, the synchronous action of the power supply 301m and the spring 301g in this embodiment ensures that the pressing block 301f always presses against the surface of the cleaning strip 302a, ensuring that the cleaning strip 302a is always in contact with the solar panel during the deflection process, further improving the cleaning efficiency of the cleaning equipment on the solar panel and ensuring the cleaning effect.

[0059] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A solar panel cleaning device, comprising a cleaning system (300) that can move along the surface of the solar panel, the cleaning system (300) comprising a cleaning unit (301) and a wiping unit (302), characterized in that: The wiping unit (302) comprises an electric push rod (302c) connected to the lower surface of the cleaning unit (301) and a cleaning bar (302a) located on the surface of the solar panel. The cleaning bar (302a) is connected in sequence through a connecting rod (302b), and the connecting rod (302b) is rotatably connected to the cleaning bar (302a). The power end of the electric push rod (302c) is rotatably connected to an arc rod (302d), and the end of the arc rod (302d) is rotatably connected to the cleaning bar (302a) on a side away from the electric push rod (302c). When the electric push rod (302c) is extended or retracted during operation, the arc rod (302d) drives the cleaning bar (302a) to deflect and wipe the surface of the solar panel in multiple directions. The cleaning unit (301) is used to blow away dust generated by wiping the wiping unit (302).

2. The solar panel cleaning device according to claim 1, characterized in that: When the cleaning strips (302a) are deflected, the distance between adjacent cleaning strips (302a) increases or decreases, thereby achieving the cleaning strips (302a) to synchronously wipe the surface of the solar panel in the longitudinal and transverse directions.

3. The solar panel cleaning device according to claim 2, characterized in that: The cleaning unit (301) comprises a shell (301a), a fixing frame (301c) is installed in the shell (301a), a fan (301n) is installed on the fixing frame (301c), an air outlet (301b) is opened on the shell (301a), and the airflow generated by the fan (301n) is blown toward the surface of the solar panel from the air outlet (301b).

4. The solar panel cleaning device according to claim 3, characterized in that: The shell (301a) is further provided with a connecting frame (301d), the connecting frame (301d) is mounted on the lower surface of the fixing frame (301c), a connecting plate (301e) is installed on the connecting frame (301d), a pressing block (301f) is connected to the connecting plate (301e), an opening is provided on the lower surface of the shell (301a), and the pressing block (301f) passes through the opening and presses on the surface of the cleaning strip (302a).

5. The solar panel cleaning device according to claim 4, characterized in that: There is a cavity between the fixing frame (301c) and the connecting frame (301d), and a spring (301g) is installed in the cavity. The spring (301g) is in a compressed state, and the spring (301g) drives the pressing block (301f) to press tightly against the surface of the cleaning strip (302a) due to the elastic force.

6. The solar panel cleaning device according to claim 4 or 5, characterized in that: The connecting frame (301d) is also equipped with a power supply (301m), which is used to supply power to the electrical components in the cleaning device, and the power supply (301m) acts as a counterweight to drive the pressing block (301f) to press tightly against the surface of the cleaning strip (302a).

7. The solar panel cleaning device according to any one of claims 1 to 4, characterized in that: It also includes a walking system (100) and a driving system (200), wherein the walking system (100) is used to drive the cleaning system (300) to move along the length direction of the solar panel, and the driving system (200) is used to drive the cleaning system (300) to move along the width direction of the solar panel; A guide rail is arranged on the side wall of the solar panel along the travel direction of the travel system (100), and the travel system (100) comprises a frame (101) symmetrically arranged on the solar panel guide rail, one side of the frame (101) is open, and the guide rail on the solar panel enters into the opening, and a suspension wheel (105) is installed on the top wall of the opening of the frame (101), and the suspension wheel (105) allows the travel system (100) to be suspended on the guide rail of the solar panel, and a rotating rod (102) is rotatably installed in the frame (101), and a travel wheel (103) is installed on the rotating rod (102), and the travel wheel (103) abuts against the side wall of the guide rail, and a travel drive motor (104) is installed in the frame (101), and the travel drive motor (104) can drive the rotating rod (102) through the cooperation of the bevel gear to drive the travel wheel (103) to rotate and travel along the length direction of the solar panel; The driving system (200) comprises a distance driving motor (201) and a threaded rod (202) connected to the output end of the distance driving motor (201); the distance driving motor (201) is mounted on a frame (101); one end of the threaded rod (202) is connected to the output end of the distance driving motor (201); the other end passes through a cleaning system (300) and is rotatably mounted on the walking system (100) on the other side; the cleaning system (300) is threadedly mounted on the threaded rod (202); a fixed guide rail (203) is also installed between the frames (101); the fixed guide rail (203) passes through the cleaning system (300) and is slidably mounted on the cleaning system (300).

8. A cleaning method for a solar panel cleaning device as claimed in claim 1, characterized in that: The steps include: The electric push rod (302c) in the wiping unit (302) drives the cleaning bar (302a) to deflect through the arc rod (302d), and during the deflection, the cleaning bar (302a) wipes the surface of the solar panel, and the deflection of the cleaning bar (302a) changes the distance between adjacent cleaning bars (302a), so that the cleaning bar (302a) wipes the surface of the solar panel longitudinally and transversely; The cleaning unit (301) comprises a shell (301a), a fan (301n) is installed in the shell (301a), an air outlet (301b) is provided on the shell (301a), and the airflow generated by the fan (301n) is blown from the air outlet (301b) toward the surface of the solar panel to blow away the dust generated by wiping the wiping unit (302).

9. The cleaning method of the solar panel cleaning device according to claim 8, characterized in that: The solar panel cleaning device also includes a walking system (100), the walking system (100) includes a frame (101) symmetrically arranged on the guide rails on both sides of the solar panel, one side of the frame (101) is open, the guide rails on the solar panel enter the opening, a suspension wheel (105) is installed on the top wall of the opening of the frame (101), the suspension wheel (105) allows the walking system (100) to be suspended on the guide rails of the solar panel, a rotating rod (102) is rotatably installed in the frame (101), a walking wheel (103) is installed on the rotating rod (102), the walking wheel (103) is abutted against the side wall of the guide rail, and a walking drive motor (104) is installed in the frame (101), and the walking drive motor (104) can drive the rotating rod (102) to drive the walking wheel (103) to rotate and walk along the length direction of the solar panel through the cooperation of the bevel gear, so that the cleaning system (300) is located on the surface of the solar panel and moves along the length direction of the solar panel to clean the solar panel.

10. The cleaning method of the solar panel cleaning device according to claim 8, characterized in that: The solar panel cleaning device also includes a driving system (200), the driving system (200) includes a distance driving motor (201) and a threaded rod (202) connected to the output end of the distance driving motor (201), the distance driving motor (201) is installed on the frame (101), and one end of the threaded rod (202) is connected to the output end of the distance driving motor (201), and the other end passes through the cleaning system (300) and is rotatably assembled on the walking system (100) on the other side, the cleaning system (300) is threadedly assembled on the threaded rod (202), and a fixed guide rail (203) is also installed between the frames (101), the fixed guide rail (203) passes through the cleaning system (300) and is slidably assembled with the cleaning system (300), the working tendency of the distance driving motor (201) causes the threaded rod (202) to rotate and drive the cleaning system (300) to move along the width direction of the solar panel to clean the solar panel.

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