Photovoltaic panel cleaning system and cleaning method thereof

Abstract

The invention discloses a photovoltaic panel cleaning system and a cleaning method thereof.The photovoltaic panel cleaning system comprises a first traction device, a second traction device, a squeezing device and a wiping body, and the first traction device and the second traction device are used for being installed on the upper side and the lower side of a photovoltaic module correspondingly; the two ends of the flexible wiping body are used for being connected with the first traction device and the second traction device respectively, and the squeezing device is used for being installed on one of the left side and the right side of the photovoltaic module and used for squeezing the wiping body. The wiping body is pulled to move on the surface of the photovoltaic module through the first traction device and the second traction device, so that the upper side surface of the photovoltaic module is cleaned and wiped, and after wiping is completed, the wiping body is squeezed through the squeezing device to squeeze out moisture adsorbed by the wiping body, so that the wiping body is cleaned and wiped. And then water stains on the surface of the photovoltaic module are wiped, so that a better cleaning effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a photovoltaic panel cleaning system and a cleaning method thereof. Background Art

[0002] Dust adhering to photovoltaic panels will affect the power generation efficiency of photovoltaic panels. Therefore, after the photovoltaic panels are polluted to a certain extent, they must be cleaned. During cleaning, cleaning equipment will be used for cleaning, such as scrapers, cleaning robots, etc. However, due to the large area of ​​photovoltaic panels in mountainous areas, manual cleaning with scrapers is very labor-intensive, and photovoltaic panels are installed and laid according to the terrain. The photovoltaic assembly composed of multiple connected photovoltaic panels has a wavy structure, and it is not suitable to use a cleaning robot for cleaning. In some schemes, spraying is used for cleaning, but there is no way to wipe and dry, so that there are still many stains on the surface of the photovoltaic panel. Therefore, a photovoltaic panel cleaning system and a cleaning method thereof are proposed in the present application.

[0003] After searching, Chinese patent document CN116131745A, publication (announcement) date: 2023.05.16, discloses a new energy photovoltaic panel operation and maintenance device and method, including a support seat, a base plate is provided above the support seat, and a plurality of photovoltaic panels are provided above the base plate, and one side of the photovoltaic panel is provided with a wiping component for wiping its surface from top to bottom, and the wiping component includes a scraper located on one side of the photovoltaic panel, and one side of the scraper is provided with a scraper strip 1 that contacts the photovoltaic panel, and the length of the scraper strip 1 is equal to the length of a single photovoltaic panel, and a connecting shaft 1 is provided inside the scraper, and a connecting block is provided outside the connecting shaft 1, and a side plate for sliding is provided at the bottom of the connecting block. Its characteristics are: through the wiping component, the wiping process is automatically realized through mechanical transmission, and there is no need to manually climb to the surface of the photovoltaic panel to wipe it. While reducing the danger of manual operation, the dust on the surface of the photovoltaic panel can be cleaned more efficiently; its shortcomings are: first, the installation cost is relatively high, and it is not suitable for use in large-scale mountain photovoltaic power stations; second, since the photovoltaic panels are installed along the mountain terrain, the scraper method used cannot fit the photovoltaic panels well, affecting the use effect. Summary of the invention

[0004] In order to solve the current technical problems, the main purpose of the present invention is to provide a photovoltaic panel cleaning system and a cleaning method thereof, wherein the wiping body is pulled by a first traction device and a second traction device to move on the surface of the photovoltaic component, so as to clean and wipe the photovoltaic component. After wiping is completed, the wiping body is squeezed by a squeezing device to squeeze out the moisture adsorbed by the wiping body, and then the water stains on the surface of the photovoltaic component are wiped, thereby achieving a better cleaning effect.

[0005] In order to overcome the problems existing in the prior art, the technical solution adopted by the present invention is: a photovoltaic panel cleaning system, comprising a first traction device, a second traction device, a squeezing device and a wiping body, the first traction device and the second traction device are respectively used to be installed on the upper and lower sides of the photovoltaic component, the two ends of the flexible wiping body are respectively used to be connected to the first traction device and the second traction device, the squeezing device is used to be installed on one of the left and right sides of the photovoltaic component, and is used to squeeze the wiping body; in use, the first traction device and the second traction device move laterally synchronously to drag the wiping body to move on the photovoltaic component.

[0006] The first traction device and the second traction device have the same structure. The first traction device includes a transverse support beam, a first track, a first movable frame and a first motor. The transverse support beam is fixedly mounted on the inclined beam of the photovoltaic bracket. The first track is mounted on the transverse support beam. A first clamping rail is arranged on the side of the first track away from the photovoltaic component. A first clamping wheel group is mounted on the first movable frame. The first movable frame is mounted on the first clamping rail through the first clamping wheel group. The first motor is mounted on the side of the first movable frame away from the photovoltaic component. A first gear is mounted on the output shaft of the first motor. A first rack is mounted on the first track. The first gear is meshed with the first rack for transmission. The wiping body is connected to the first movable frame.

[0007] A busbar is installed on the transverse support beam, and a current collector is installed on the first movable frame. The current collector slides and conducts electricity in cooperation with the busbar. The current collector is electrically connected to the first motor through a wire.

[0008] The first movable frame is provided with a hanging ring on one side close to the photovoltaic support, and the wiping body is tied and connected to the hanging ring, or hooks are respectively connected to both ends of the wiping body, and the hooks are hooked with the hanging ring.

[0009] The squeezing device includes a first longitudinal support platform, a second track, a second movable frame, a second motor, a push rod device and an extrusion member. The second track is installed on the first longitudinal support platform. A second clamping rail is provided on the second track on a side away from the photovoltaic component. A second clamping wheel group is installed on the second movable frame. The second movable frame is installed on the second clamping rail through the second clamping wheel group. The second motor is installed on a side of the second movable frame away from the photovoltaic component. A second gear is installed on the output shaft of the second motor. A second rack is installed on the second track. The second gear is meshed with the second rack for transmission. The push rod device is installed on the second movable frame. The extrusion member is installed on the telescopic end of the push rod device. The extrusion member is located on one side of the second track and is also located above the first longitudinal support platform.

[0010] The extrusion member comprises a bracket and a roller. The bracket is fixedly connected to the telescopic end of the push rod device, and the roller is rotatably mounted on the bracket.

[0011] It also includes a cleaning device, which is installed on the other side of the photovoltaic component relative to the squeezing device, and is used to clean the wiping body.

[0012] The cleaning device includes a second longitudinal support platform, a third track, a third moving frame, a third motor, a fourth motor and a roller brush. The third track is installed on the second longitudinal support platform. A third clamping rail is provided on the side of the third track away from the photovoltaic component. A third clamping wheel group is installed on the third moving frame. The third moving frame is installed on the third clamping rail through the third clamping wheel group. The third motor is installed on the side of the third moving frame away from the photovoltaic component. A third gear is installed on the output shaft of the third motor. A third rack is installed on the third track. The third gear is meshed with the third rack for transmission. The fourth motor is installed on the third moving frame. The roller brush is rotatably installed on the third moving frame. The roller brush is transmission-connected to the output shaft of the fourth motor. The roller brush is located on one side of the third track and is also located above the second longitudinal support platform. A water injection nozzle is also installed on the third moving frame.

[0013] It also includes a spray pipe, which is used to be installed on the upper end of the photovoltaic component.

[0014] A photovoltaic panel cleaning method adopts the photovoltaic panel cleaning system, and the cleaning method comprises the following steps: S1, moving the first traction device and the second traction device to one end of the photovoltaic assembly, and connecting the two ends of the wiping body to the first traction device and the second traction device respectively; S2, when the surface of the photovoltaic module is wet, the first traction device and the second traction device pull the wiping body to move on the surface of the photovoltaic module to clean and wipe the photovoltaic module; S3, after the wiping is completed, the first traction device and the second traction device move to the side of the squeezing device, and the wiping body is squeezed by the squeezing device to squeeze out the water adsorbed by the wiping body; S4. The first traction device and the second traction device pull the wiping body to move on the surface of the photovoltaic module to wipe the water stains on the surface of the photovoltaic module.

[0015] The present invention has the following beneficial effects: 1. The present invention uses a first traction device and a second traction device to pull the wiping body to move on the surface of the photovoltaic module, so as to clean and wipe the upper surface of the photovoltaic module. After wiping is completed, the wiping body is squeezed by a squeezing device to squeeze out the moisture adsorbed by the wiping body, and then the water stains on the surface of the photovoltaic module are wiped dry, thereby having a better cleaning effect.

[0016] 2. The present invention also includes a cleaning device, which is installed on the other side of the photovoltaic module relative to the squeezing device. The cleaning device is used to clean the wiping body so that the wiping body can be kept clean, thereby obtaining a better cleaning effect.

[0017] 3. The present invention further comprises a spray pipe, which is used to spray when the first traction device and the second traction device pull the wiping body to move on the surface of the photovoltaic module. When it is not raining, water is sprayed through the spray pipe to wet and soak the dust on the surface of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0020] Figure 2 for Figure 1 Schematic diagram of the BB cross-section structure.

[0021] Figure 3 for Figure 2 Enlarged structural diagram at D in the middle.

[0022] Figure 4 for Figure 1 Schematic diagram of the AA section structure.

[0023] Figure 5 for Figure 1 Schematic diagram of the CC cross-section structure.

[0024] Figure 6 for Figure 4 Schematic diagram of the EE cross-section structure.

[0025] Reference numerals: Photovoltaic module 10; The first traction device 20, the first traction device 20, the transverse support beam 21, the first track 22, the first clamping rail 221, the busbar 23, the first moving frame 24, the first clamping wheel set 25, the first rack 26, the first motor 27, the first gear 271, the collector 28, and the hanging ring 29; A second traction device 30; The squeeze device 40, the first longitudinal support platform 41, the second track 42, the second clamping rail 421, the second moving frame 43, the second clamping wheel set 44, the second motor 45, the second gear 451, the second rack 46, the push rod device 47, the extrusion member 48, the bracket 481, and the roller 482; Cleaning device 50, second longitudinal supporting platform 51, third track 52, third clamping rail 521, third moving frame 53, partition 531, third clamping wheel set 54, third motor 55, third gear 551, third rack 56, fourth motor 57, driving wheel 571, belt 572, roller brush 58, driven wheel 581, water injection nozzle 59; Wiping body 60, hook 61; Photovoltaic support 70, inclined beam 71; Spray pipe 80, Water supply hose 90. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: See also Figure 1 , 2 The present invention provides a photovoltaic panel cleaning system, comprising a first traction device 20, a second traction device 30, a squeezing device 40 and a wiping body 60, wherein the first traction device 20 and the second traction device 30 are respectively used to be installed on the upper and lower sides of a photovoltaic component 10, and the two ends of the flexible wiping body 60 are respectively used to be connected to the first traction device 20 and the second traction device 30, and the squeezing device 40 is used to be installed on one of the left and right sides of the photovoltaic component 10 to squeeze the wiping body 60; in use, the first traction device 20 and the second traction device 30 move synchronously laterally to drag the wiping body 60 to move on the photovoltaic component 10.

[0028] The present invention uses the first traction device 20 and the second traction device 30 to pull the wiping body 60 to move on the surface of the photovoltaic component 20, so as to clean and wipe the upper surface of the photovoltaic component 20. After wiping is completed, the wiping body is squeezed by the squeezing device 40 to squeeze out the moisture adsorbed by the wiping body 60, and then the water stains on the surface of the photovoltaic component 20 are wiped and dried, thereby having a better cleaning effect.

[0029] In this embodiment, the wiping body 60 is made of cotton cloth or sponge with good water absorption.

[0030] In this embodiment, see Figure 3 The first traction device 20 and the second traction device 30 have the same structure. The first traction device 20 includes a transverse support beam 21, a first track 22, a first moving frame 24 and a first motor 27. The transverse support beam 21 is fixedly mounted on the inclined beam 71 of the photovoltaic bracket 70. The first track 22 is mounted on the transverse support beam 21. A first clamping rail 221 is arranged on the side of the first track 22 away from the photovoltaic component 10. A first clamping wheel group 25 is mounted on the first moving frame 24. The first moving frame 24 is mounted on the first clamping rail 221 through the first clamping wheel group 25. The first motor 27 is mounted on the side of the first moving frame 24 away from the photovoltaic component 10. A first gear 271 is mounted on the output shaft of the first motor 27. A first rack 26 is mounted on the first track 22. The first gear 271 is meshed with the first rack 26 for transmission. The wiping body 60 is connected to the first moving frame 24. The transverse support beam 21 is installed along the inclined beam 71 of the photovoltaic bracket 70, which is equivalent to being installed along the terrain. Through the first clamping wheel group 25, the first movable frame 24 can move along the first track 22. When the first motor 27 drives the first gear 271 to rotate, the first movable frame 24 is driven to move, thereby pulling the wiping body 60 to move on the surface of the photovoltaic component 20 for wiping.

[0031] Furthermore, a busbar 23 is installed on the transverse support beam 21, and a current collector 28 is installed on the first moving frame 24. The current collector 28 slides with the busbar 23 and conducts electricity. The current collector 28 is electrically connected to the first motor 27 through a wire. Through the above structure, the first traction device 20 and the second traction device 30 are not bound by the power supply cable and can run farther. When in use, the two copper busbars of the busbar 23 are electrically connected to the power supply respectively, and the positive and negative poles of the two copper busbars are exchanged to control the forward and reverse rotation of the first motor 27, thereby controlling the reciprocating motion of the first traction device 20 and the second traction device 30.

[0032] Furthermore, in order to facilitate the installation or replacement of the wiping body 60, the first movable frame 24 is provided with a hanging ring 29 on the side close to the photovoltaic bracket 70, and the wiping body 60 is tied and connected to the hanging ring 29, or the two ends of the wiping body 60 are respectively connected to hooks 61, and the hooks 61 are hooked with the hanging ring 29.

[0033] See also Figure 4 , 6The squeezing device 40 includes a first longitudinal support platform 41, a second track 42, a second moving frame 43, a second motor 45, a push rod device 47 and an extrusion member 48. The second track 42 is installed on the first longitudinal support platform 41. The second track 42 is provided with a second clamping rail 421 on the side away from the photovoltaic component 10. The second moving frame 43 is installed with a second clamping wheel group 44. The second moving frame 43 is installed on the second clamping rail 421 through the second clamping wheel group 44. The second motor 45 is installed on the side of the second moving frame 43 away from the photovoltaic component 10. A second gear 451 is installed on the output shaft of the second motor 45. A second rack 46 is installed on the second track 42. The second gear 451 is meshed with the second rack 46 for transmission. The push rod device 47 is installed on the second moving frame 43. The extrusion member 48 is installed at the telescopic end of the push rod device 47. The extrusion member 48 is located on one side of the second track 42 and is also located above the first longitudinal support platform 41. With the above structure, the push rod device 47 pushes the extruding member 48 to squeeze the wiping body 60 , so that the second motor 45 drives the second moving frame 43 to move up and down, thereby squeezing the wiping body 60 and squeezing out the moisture adsorbed in the wiping body 60 .

[0034] In this embodiment, the push rod device 47 can be an electric push rod or an electric cylinder.

[0035] The extrusion member 48 may be a block or other structures. Figure 4 The extrusion member 48 includes a bracket 481 and a roller 482. The bracket 481 is fixedly connected to the telescopic end of the push rod device 47, and the roller 482 is rotatably mounted on the bracket 481. The friction between the extrusion member 48 and the wiping body 60 is reduced, and the service life of the wiping body 60 is extended.

[0036] Embodiment 2: On the basis of Example 1, a cleaning device 50 is further included. The cleaning device 50 is installed on the other side of the photovoltaic component 10 relative to the squeezing device 40. The cleaning device 50 is used to clean the wiping body 60 so that the wiping body 60 can be kept clean, thereby obtaining a better cleaning effect.

[0037] In this embodiment, see Figure 5The cleaning device 50 includes a second longitudinal support platform 51, a third track 52, a third moving frame 53, a third motor 55, a fourth motor 57 and a roller brush 58. The third track 52 is installed on the second longitudinal support platform 51. The third track 52 is provided with a third clamping rail 521 on the side away from the photovoltaic component 10. The third moving frame 53 is installed with a third clamping wheel set 54. The third moving frame 53 is installed on the third clamping rail 521 through the third clamping wheel set 54. The third motor 55 is installed on the third moving frame 53 away from the photovoltaic component. 10, a third gear 551 is installed on the output shaft of the third motor 55, a third rack 56 is installed on the third track 52, the third gear 551 is meshed with the third rack 56 for transmission, the fourth motor 57 is installed on the third moving frame 53, a roller brush 58 is rotatably installed on the third moving frame 53, the roller brush 58 is in transmission connection with the output shaft of the fourth motor 57, the roller brush 58 is located on one side of the third track 52, and is also located above the second longitudinal support platform 51; a water injection nozzle 59 is also installed on the third moving frame 53. The third moving frame 53 is driven to reciprocate on the third track 52 by the third motor 55, and the roller brush 58 is driven to rotate by the fourth motor 57, so as to scrub the wiping body 60.

[0038] In this embodiment, a driving wheel 571 is installed on the output shaft of the fourth motor 57 , a passive wheel 581 is installed on one end of the roller brush 58 , and the driving wheel 571 and the passive wheel 581 are connected through a belt 572 .

[0039] exist Figure 5 In order to facilitate installation on the roller brush 58, the third moving frame 53 is in the shape of a door frame, and a partition 531 is provided in the third moving frame 53. The central fixed axis of the roller brush 58 is rotatably installed on the third moving frame 53 and the partition 531. The outer circumference of the roller brush 58 has flexible bristles.

[0040] When in use, the water injection nozzle 59 is connected to a water source through a water supply hose 90 for water supply.

[0041] It should be noted that in Example 1 and Example 2, see Figure 6 The clamping wheel set has 4 clamping wheels, 2 on the upper and 2 on the lower, and the gear is located between the two clamping wheels on the upper side.

[0042] Embodiment 3: Based on Example 1 or Example 2, see Figure 3 , further comprising a spray pipe 80, which is used to be installed on the upper end of the photovoltaic assembly 10. It is used to spray when the first traction device 20 and the second traction device 30 pull the wiping body 60 to move on the surface of the photovoltaic assembly 20.

[0043] When it is not raining, water is sprayed through the spray pipe 80 to wet and soak the dust on the surface of the photovoltaic module 10.

[0044] When in use, the spray pipe 80 is connected to the water supply pipe for water supply.

[0045] Embodiment 4: A photovoltaic panel cleaning method adopts the photovoltaic panel cleaning system, and the cleaning method comprises the following steps: S1. Move the first traction device 20 and the second traction device 30 to one end of the photovoltaic assembly 10, and connect the two ends of the wiping body 60 to the first traction device 20 and the second traction device 30 respectively.

[0046] S2. When the surface of the photovoltaic component 10 is wet, the first traction device 20 and the second traction device 30 pull the wiping body 60 to move on the surface of the photovoltaic component 10 to clean and wipe the photovoltaic component 10.

[0047] There are two states where the surface of the photovoltaic module 10 is wetted. One is when it is raining or after it is raining; the other is when water is sprayed through the spray pipe 80 .

[0048] S3. After wiping is completed, the first traction device 20 and the second traction device 30 move to the side of the squeezing device 40, and the squeezing device 40 squeezes the wiping body 60 to squeeze out the water adsorbed by the wiping body 60.

[0049] Specifically, during the squeezing, the squeezing member 48 is raised under the action of the push rod device 47. After the water-carrying wiping is completed, the first traction device 20 and the second traction device 30 pull the wiping body 60 to move to the side of the squeezing device 40, and the wiping body 60 is located between the first longitudinal support platform 41 and the squeezing member 48. After that, the squeezing member 48 moves downward under the action of the push rod device 47 to squeeze the wiping body 60. Then, the second motor 45 drives the second moving frame 43 to move up and down, thereby squeezing the wiping body 60 and squeezing out the water absorbed in the wiping body 60. After the squeezing is completed, the squeezing member 48 is raised under the action of the push rod device 47.

[0050] S4, the first traction device 20 and the second traction device 30 pull the wiping body 60 to move on the surface of the photovoltaic component 10, wipe the water stains on the surface of the photovoltaic component 10, and perform a drying operation.

[0051] After using the cleaning device 50 , the step of cleaning the wiping body 60 is also included.

[0052] Specifically, when the wiping body 60 needs to be cleaned, the first traction device 20 and the second traction device 30 pull the wiping body 60 to move to the side of the cleaning device 50. Since the bristles of the roller brush 58 are flexible, the wiping body 60 can be placed between the second longitudinal support platform 51 and the roller brush 58. Then, the third motor 55 drives the third moving frame 53 to reciprocate on the third track 52, and the fourth motor 57 drives the roller brush 58 to rotate, so as to brush the wiping body 60.

[0053] During the scrubbing process, the water supply is connected to a water source through the water injection nozzle 59 via the water supply hose 90 to improve the scrubbing effect.

Claims

1. A photovoltaic panel cleaning system, characterized in that: The invention comprises a first traction device (20), a second traction device (30), a squeezing device (40) and a wiping body (60); the first traction device (20) and the second traction device (30) are respectively used to be installed on the upper and lower sides of a photovoltaic module (10); the two ends of the flexible wiping body (60) are respectively used to be connected to the first traction device (20) and the second traction device (30); the squeezing device (40) is used to be installed on one of the left and right sides of the photovoltaic module (10) to squeeze the wiping body (60); in a use state, the first traction device (20) and the second traction device (30) move synchronously in the transverse direction to drag the wiping body (60) to move on the photovoltaic module (10).

2. A photovoltaic panel cleaning system according to claim 1, characterized in that: The first traction device (20) and the second traction device (30) have the same structure. The first traction device (20) comprises a transverse support beam (21), a first rail (22), a first moving frame (24) and a first motor (27). The transverse support beam (21) is fixedly mounted on an inclined beam (71) of a photovoltaic support (70). The first rail (22) is mounted on the transverse support beam (21). A first clamping rail (221) is provided on a side of the first rail (22) away from the photovoltaic assembly (10). The first moving frame (24) is provided on a side of the first rail (22) away from the photovoltaic assembly (10). ) is mounted on a first clamping wheel group (25), the first movable frame (24) is mounted on a first clamping rail (221) via the first clamping wheel group (25), the first motor (27) is mounted on a side of the first movable frame (24) away from the photovoltaic assembly (10), the output shaft of the first motor (27) is mounted with a first gear (271), the first rail (22) is mounted with a first rack (26), and the first gear (271) and the first rack (26) are meshed for transmission; the wiping body (60) is connected to the first movable frame (24).

3. A photovoltaic panel cleaning system according to claim 2, characterized in that: A busbar (23) is mounted on the transverse support beam (21), and a current collector (28) is mounted on the first movable frame (24). The current collector (28) slides with the busbar (23) and conducts electricity. The current collector (28) is electrically connected to the first motor (27) via a wire.

4. A photovoltaic panel cleaning system according to claim 2, characterized in that: The first movable frame (24) is provided with a hanging ring (29) on a side close to the photovoltaic support (70), and the wiping body (60) is tied to the hanging ring (29), or hooks (61) are respectively connected to both ends of the wiping body (60), and the hooks (61) are hooked to the hanging ring (29).

5. A photovoltaic panel cleaning system according to claim 1, characterized in that: The squeezing device (40) comprises a first longitudinal support platform (41), a second rail (42), a second movable frame (43), a second motor (45), a push rod device (47) and an extrusion member (48); the second rail (42) is mounted on the first longitudinal support platform (41); a second clamping rail (421) is provided on the side of the second rail (42) away from the photovoltaic module (10); a second clamping wheel set (44) is mounted on the second movable frame (43); and the second movable frame (43) is mounted on the second clamping rail (421) via the second clamping wheel set (44). The second motor (45) is mounted on a side of the second moving frame (43) away from the photovoltaic assembly (10); a second gear (451) is mounted on the output shaft of the second motor (45); a second rack (46) is mounted on the second track (42); the second gear (451) and the second rack (46) are meshed and transmitted; the push rod device (47) is mounted on the second moving frame (43); an extrusion member (48) is mounted on the telescopic end of the push rod device (47); the extrusion member (48) is located on one side of the second track (42) and is also located above the first longitudinal support platform (41).

6. A photovoltaic panel cleaning system according to claim 5, characterized in that: The extrusion member (48) comprises a bracket (481) and a roller (482); the bracket (481) is fixedly connected to the telescopic end of the push rod device (47); and the roller (482) is rotatably mounted on the bracket (481).

7. A photovoltaic panel cleaning system according to claim 1, characterized in that: It also comprises a cleaning device (50), which is installed on the other side of the photovoltaic assembly (10) relative to the squeezing device (40), and is used to clean the wiping body (60).

8. A photovoltaic panel cleaning system according to claim 7, characterized in that: The cleaning device (50) comprises a second longitudinal support platform (51), a third rail (52), a third movable frame (53), a third motor (55), a fourth motor (57) and a roller brush (58); the third rail (52) is mounted on the second longitudinal support platform (51); a third clamping rail (521) is provided on the side of the third rail (52) away from the photovoltaic assembly (10); a third clamping wheel set (54) is mounted on the third movable frame (53); the third movable frame (53) is mounted on the third clamping rail (521) via the third clamping wheel set (54); and the third motor (55) is mounted on the third movable frame (53) away from the photovoltaic assembly (10). A third gear (551) is mounted on one side of the component (10), a third gear (551) is mounted on the output shaft of the third motor (55), a third rack (56) is mounted on the third track (52), the third gear (551) and the third rack (56) are meshed and driven, the fourth motor (57) is mounted on the third moving frame (53), a roller brush (58) is rotatably mounted on the third moving frame (53), the roller brush (58) is in driving connection with the output shaft of the fourth motor (57), the roller brush (58) is located on one side of the third track (52), and is also located above the second longitudinal support platform (51); the third moving frame (53) is also mounted with a water injection nozzle (59).

9. A photovoltaic panel cleaning system according to claim 1 or 7, characterized in that: It also comprises a spray pipe (80), wherein the spray pipe (80) is used to be installed on the upper end of the photovoltaic assembly (10).

10. A photovoltaic panel cleaning method, characterized in that: A photovoltaic panel cleaning system according to any one of claims 1 to 9 is used, and the cleaning method comprises the following steps: S1, moving the first traction device (20) and the second traction device (30) to one end of the photovoltaic assembly (10), and connecting the two ends of the wiping body (60) to the first traction device (20) and the second traction device (30), respectively; S2, when the surface of the photovoltaic module (10) is wet, the first traction device (20) and the second traction device (30) pull the wiping body (60) to move on the surface of the photovoltaic module (10) to clean and wipe the photovoltaic module (10); S3, after wiping is completed, the first traction device (20) and the second traction device (30) move to the side of the squeezing device (40), and squeeze the wiping body (60) through the squeezing device (40) to squeeze out the water absorbed by the wiping body (60); S4: The first traction device (20) and the second traction device (30) pull the wiping body (60) to move on the surface of the photovoltaic component (10) to wipe the water stains on the surface of the photovoltaic component (10).

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