Photovoltaic panel cleaning equipment

Abstract

The invention discloses photovoltaic panel cleaning equipment. The photovoltaic panel cleaning equipment comprises a first rolling assembly, a second rolling assembly and a cleaning part; the cleaning piece is fixed between the first rolling assembly and the second rolling assembly, and the first rolling assembly and the second rolling assembly can move on the photovoltaic panel so as to drive the cleaning piece to move; in the moving direction of the cleaning part, under the condition that the first rolling assembly is located behind the second rolling assembly, the moving speed of the first rolling assembly is made to be larger than that of the second rolling assembly; and under the condition that the first rolling assembly is located in front of the second rolling assembly, the moving speed of the first rolling assembly is smaller than that of the second rolling assembly. By adjusting the moving speed of the first rolling assembly and the second rolling assembly, the cleaning device is prevented from being separated from the photovoltaic panel or clamped on the photovoltaic panel, and the reliability of the device is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic panel cleaning device. Background Art

[0002] Photovoltaic power generation is a way to obtain clean energy. Photovoltaic panels are generally set up outdoors to receive sufficient sunlight. However, after being exposed outdoors for a long time, the upper surface of the photovoltaic panels is prone to absorb dust and other foreign matter, thus affecting the power generation efficiency of the photovoltaic panels. During the cleaning process of photovoltaic panels, existing cleaning equipment is prone to detach from the photovoltaic panels or get stuck on the photovoltaic panels, reducing the reliability of the equipment. Summary of the invention

[0003] The purpose of this application is to provide a photovoltaic panel cleaning device to solve the above-mentioned problem. By changing the moving speed of the upper and lower ends of the cleaning device, the cleaning device can be prevented from detaching from the photovoltaic panel or getting stuck on the photovoltaic panel, thereby improving the reliability of the device.

[0004] The present application provides a photovoltaic panel cleaning device for cleaning foreign objects on a photovoltaic panel, wherein the photovoltaic panel comprises an upper surface and a side surface connected to the upper surface, wherein the side surface of the photovoltaic panel is the highest surface of the photovoltaic panel in the direction of gravity, and the photovoltaic panel cleaning device comprises a first rolling assembly, a second rolling assembly and a cleaning member; the first rolling assembly and the second rolling assembly are fixedly connected at opposite ends of the cleaning member, respectively, and the cleaning member faces the upper surface of the photovoltaic panel, and both the first rolling assembly and the second rolling assembly can move on the upper surface of the photovoltaic panel to drive the cleaning member to move so that the cleaning member cleans the upper surface of the photovoltaic panel; the first rolling assembly is at least partially overlapped with the side surface of the photovoltaic panel; along the moving direction of the cleaning member, when the first rolling assembly is located behind the second rolling assembly, the moving speed of the first rolling assembly is greater than the moving speed of the second rolling assembly; when the first rolling assembly is located in front of the second rolling assembly, the moving speed of the first rolling assembly is less than the moving speed of the second rolling assembly.

[0005] In some embodiments, the photovoltaic panel includes a first end and a second end opposite to each other along a first direction; the first rolling assembly is arranged at the first end of the photovoltaic panel, and the second rolling assembly is arranged at the second end of the photovoltaic panel; in the direction of gravity, the first end of the photovoltaic panel is higher than the second end of the photovoltaic panel, and the side of the photovoltaic panel is the side of the first end of the photovoltaic panel; the moving direction of the cleaning member is perpendicular to the first direction; the first rolling assembly includes a first mounting plate and two side wheels, the two side wheels are respectively connected to the first mounting plate, and the two side wheels can roll on the side of the first end of the photovoltaic panel; one end of the cleaning member is fixed to the first mounting plate.

[0006] In some embodiments, the photovoltaic panel cleaning device also includes a first sensor and a second sensor, and the side wheels include a rear wheel and a front wheel; along the moving direction of the cleaning member, the rear wheel and the first sensor are both connected to the rear side of the first mounting plate, and the front wheel and the second sensor are both connected to the front side of the first mounting plate; the first sensor is used to detect a first pressure or a first distance between the rear wheel and the side of the first end of the photovoltaic panel, and the second sensor is used to detect a second pressure or a second distance between the front wheel and the side of the first end of the photovoltaic panel; along the moving direction of the cleaning member, when the first pressure is greater than the second pressure or the first distance is less than the second distance, the first rolling assembly is located behind the second rolling assembly; when the first pressure is less than the second pressure or the first distance is greater than the second distance, the first rolling assembly is located in front of the second rolling assembly.

[0007] In some embodiments, the first rolling assembly also includes two first walking wheels, and the second rolling assembly includes a second mounting plate and two second walking wheels; one end of the cleaning member away from the first mounting plate is fixedly connected to the second mounting plate; the two first walking wheels are both connected to the first mounting plate, and the two first walking wheels can roll along the upper surface of the first end of the photovoltaic panel; the two second walking wheels are both connected to the second mounting plate, and the two second walking wheels can roll along the upper surface of the second end of the photovoltaic panel.

[0008] In some embodiments, the first rolling assembly further includes a first driving device, the first driving device is mounted on the first mounting plate, and the first driving device drives and connects the two first traveling wheels.

[0009] In some embodiments, the first driving device further drives and connects the front wheel and the rear wheel.

[0010] In some embodiments, the first rolling assembly also includes a first transmission shaft, four active bevel gears and four driven bevel gears, the first driving device is drivingly connected to the first transmission shaft, the four active bevel gears are fixedly connected to the first transmission shaft, the four driven bevel gears are respectively fixedly connected to the two first walking wheels, the front wheels and the rear wheels, and the four active bevel gears are respectively meshed with the four driven bevel gears, so that the first driving device can drive the two first walking wheels, the front wheels and the rear wheels at the same time.

[0011] In some embodiments, the second rolling assembly further includes a second driving device, the second driving device is mounted on the second mounting plate, and the second driving device is used to drive the two second traveling wheels.

[0012] In some embodiments, the second rolling assembly further includes a chain and two sprockets, the two sprockets are respectively fixedly connected to the two second traveling wheels, the chain is engaged with the two sprockets, and the second driving device is drivingly connected to one of the sprockets.

[0013] In some embodiments, the second rolling assembly further includes a belt and two pulleys, the two pulleys are respectively fixedly connected to the two second traveling wheels, the belt is sleeved on the two pulleys, and the second driving device is drivingly connected to one of the pulleys.

[0014] In some embodiments, the photovoltaic panel cleaning device further comprises a support wheel, wherein the support wheel is connected to the cleaning member, and the support wheel can roll along the upper surface of the photovoltaic panel.

[0015] In some embodiments, the second rolling assembly further includes a second transmission shaft, and both ends of the second transmission shaft are respectively connected to one of the second walking wheels and the support wheel, and the support wheel can be driven by the second driving device.

[0016] In some embodiments, the cleaning member includes a cleaning portion and a supporting portion, wherein opposite ends of the supporting portion are respectively fixedly connected to the first rolling assembly and the second rolling assembly, the cleaning portion is arranged on the supporting portion, and the cleaning portion is located on a side of the supporting portion facing the photovoltaic panel, and the side of the cleaning portion facing the photovoltaic panel is in contact with the upper surface of the photovoltaic panel.

[0017] In the present application, the photovoltaic panel cleaning device moves on the photovoltaic panel through the first rolling assembly and the second rolling assembly, so that the cleaning member can clean the upper surface of the photovoltaic panel to prevent dust and other foreign matter from being contaminated on the photovoltaic panel, thereby improving the light utilization rate of the photovoltaic panel and improving the power generation efficiency. In the present application, by setting a first sensor on the rear side of the first rolling assembly and setting a second sensor on the front side of the first rolling assembly, the first sensor detects a first pressure between the rear side of the first rolling assembly and the photovoltaic panel, and the second sensor detects a second pressure between the front side of the second rolling assembly and the photovoltaic panel, so as to determine whether the photovoltaic panel cleaning device is jammed. When jamming occurs, by adjusting the moving speed of the first rolling assembly and the second rolling assembly, the photovoltaic panel cleaning device can resume normal operation without manual adjustment, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation scheme are briefly introduced below.

[0019] Figure 1 It is an overall schematic diagram of the photovoltaic panel cleaning device provided in an embodiment of the present application when in operation.

[0020] Figure 2 It is a schematic diagram of the overall structure of the photovoltaic panel cleaning device provided in an embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the structure of the first rolling component in the photovoltaic panel cleaning device provided in an embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the structure of the second rolling component in the photovoltaic panel cleaning device provided in an embodiment of the present application.

[0023] Figure 5 This is a schematic diagram of the photovoltaic panel cleaning device provided in an embodiment of the present application moving from left to right when working.

[0024] Figure 6 This is a schematic diagram of the photovoltaic panel cleaning device provided in an embodiment of the present application moving from right to left.

[0025] Explanation of the reference numerals: 10-photovoltaic panel; 11-upper surface; 12-side surface; 100-first rolling assembly; 110-first mounting plate; 120-side wheel; 121-front wheel; 122-rear wheel; 130-first running wheel; 140-first driving device; 150-first transmission shaft; 160-active bevel gear; 170-driven bevel gear; 200-second rolling assembly; 210-second mounting plate; 220-second running wheel; 230-second driving device; 240-chain; 250-sprocket; 260-second transmission shaft; 300-cleaning member; 400-first sensor; 500-second sensor; 600-support wheel; 700-bearing. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0027] Please refer to Figure 1, it can be understood by those skilled in the art that the photovoltaic panel 10 is generally installed at an angle relative to the installation surface, and the installation surface refers to a horizontal surface such as a roof or a bottom surface. In the embodiment of the present application, the upper surface 11 of the photovoltaic panel 10 refers to the surface of the side of the photovoltaic panel 10 facing the sun, that is, the surface of the photovoltaic panel 10 that absorbs light energy. In the embodiment of the present application, the photovoltaic panel 10 includes a first end and a second end arranged relatively to each other along a first direction, and in the direction of gravity, the first end of the photovoltaic panel 10 is higher than the second end of the photovoltaic panel 10. More specifically, the first end of the photovoltaic panel 10 refers to the end of the photovoltaic panel 10 that is farther from the installation surface, and the second end of the photovoltaic panel 10 refers to the end of the photovoltaic panel 10 that is closer to the installation surface. In the embodiment of the present application, the side surface 12 of the first end of the photovoltaic panel 10 refers to the surface where the first end of the photovoltaic panel 10 is connected to the upper surface 11 of the photovoltaic panel 10.

[0028] In the embodiment of the present application, the front side and the rear side are relative to the movement direction of the cleaning member 300. For example, please refer to Figure 5 When the photovoltaic panel cleaning device moves from left to right, the rear side refers to the side close to the left, and the front side refers to the side close to the right; when the photovoltaic panel cleaning device moves from right to left, the rear side refers to the side close to the right, and the front side refers to the side close to the left. Figure 6 Those skilled in the art can also understand that the photovoltaic panel cleaning device provided in the embodiment of the present application may work from left to right, from right to left, or reciprocate left and right in actual operation.

[0029] Please refer to Figure 1 and Figure 2 The photovoltaic panel cleaning device provided in the embodiment of the present application is used to clean foreign objects from the photovoltaic panel 10. The photovoltaic panel 10 includes an upper surface 11 and a side surface 12 connected to the upper surface 11. In the direction of gravity, the side surface 12 of the photovoltaic panel 10 is the highest surface of the photovoltaic panel 10.

[0030] The photovoltaic panel cleaning device includes a first rolling assembly 100, a second rolling assembly 200, a cleaning member 300, a first sensor 400 and a second sensor 500; opposite ends of the cleaning member 300 are fixedly connected to the first rolling assembly 100 and the second rolling assembly 200 respectively, the cleaning member 300 faces the upper surface 11 of the photovoltaic panel 10, and the first rolling assembly 100 and the second rolling assembly 200 can both move on the upper surface 11 of the photovoltaic panel 10 to drive the cleaning member 300 to move, so that the cleaning member 300 cleans the upper surface 11 of the photovoltaic panel 10; the first rolling assembly 100 is at least partially overlapped with the side surface 12 of the photovoltaic panel 10; along the moving direction of the cleaning member 300, when the first rolling assembly 100 is located behind the second rolling assembly 200, the moving speed of the first rolling assembly 100 is greater than the moving speed of the second rolling assembly 200; when the first rolling assembly 100 is located in front of the second rolling assembly 200, the moving speed of the first rolling assembly 100 is less than the moving speed of the second rolling assembly 200.

[0031] It can be understood by those skilled in the art that, when the cleaning device is operating normally, the moving speeds of the first rolling assembly 100 and the second rolling assembly 200 are the same, that is, in the direction of movement of the cleaning member 300, the first rolling assembly 100 and the second rolling assembly 200 are in the same position, that is, there is no front-to-back difference between the first rolling assembly 100 and the second rolling assembly 200 along the moving direction. It can also be understood by those skilled in the art that, in actual operation of the cleaning device, due to inevitable errors, the positions of the first rolling assembly 100 and the second rolling assembly 200 cannot be guaranteed to be absolutely consistent, therefore, in the embodiment of the present application, the deviation of the first rolling assembly 100 and the second rolling assembly 200 in the moving direction by a set distance should be considered as a tolerable deviation, that is, at this time, it should also be considered that the positions of the first rolling assembly 100 and the second rolling assembly 200 are consistent. The specific tolerable deviation can be set by technicians in this field according to actual conditions. It can be 5 cm, 10 cm, 5 decimeters, 10 decimeters, etc. Specifically, it can be set according to the distance between the first end of the photovoltaic panel 10 and the second end of the photovoltaic panel 10 and / or the size of the photovoltaic panel 10 along the first direction. For example, the distance between the first end of the photovoltaic panel 10 and the second end of the photovoltaic panel 10 is small, and the size along the first direction is also small, then the tolerable deviation can also be set smaller. In short, it can be ensured that the first rolling assembly 100 and the second rolling assembly 200 can move smoothly on the photovoltaic panel 10.

[0032] In the embodiment of the present application, along the moving direction of the cleaning member 300, when the first rolling assembly 100 is located behind the second rolling assembly 200, of course, the distance of the first rolling assembly 100 behind the second rolling assembly 200 should be greater than the tolerable deviation. At this time, the first rolling assembly 100 is subjected to greater resistance during the movement. It can be understood by those skilled in the art that the resistance may be caused by the deformation of the photovoltaic panel 10, or by the presence of large foreign matter on the photovoltaic panel 10. In this case, if the spacing between the first rolling assembly 100 and the second rolling assembly 200 along the running direction of the cleaning member 300 is further increased, the cleaning device will be stuck on the photovoltaic panel 10, resulting in the cleaning device being unable to move. In the embodiment of the present application, by increasing the moving speed of the first rolling assembly 100, the moving speed of the first rolling assembly 100 is greater than the moving speed of the second rolling assembly 200, even if the first rolling assembly 100 catches up with the second rolling assembly 200, thereby avoiding the cleaning device from being stuck on the photovoltaic panel 10, thereby improving the reliability of the cleaning device.

[0033] Similarly, along the moving direction of the cleaning member 300, when the first rolling component 100 is located in front of the second rolling component 200, it indicates that the resistance encountered by the second rolling component 200 during movement increases, causing the movement speed of the second rolling component 200 to slow down. At this time, by increasing the movement speed of the second rolling component 200, the second rolling component 200 can catch up with the first rolling component 100, thereby avoiding the cleaning equipment from getting stuck on the photovoltaic panel 10 and improving the reliability of the cleaning equipment.

[0034] Please refer to Figure 1 , Figure 3 and Figure 4 In some embodiments, the photovoltaic panel 10 includes a first end and a second end opposite to each other along a first direction; the first rolling assembly 100 is arranged at the first end of the photovoltaic panel 10, and the second rolling assembly 200 is arranged at the second end of the photovoltaic panel 10; in the direction of gravity, the first end of the photovoltaic panel 10 is higher than the second end of the photovoltaic panel 10, and the side 12 of the photovoltaic panel 10 is the side 12 of the first end of the photovoltaic panel 10; the moving direction of the cleaning member 300 is perpendicular to the first direction; the first rolling assembly 100 includes a first mounting plate 110 and two side wheels 120, the two side wheels 120 are respectively connected to the first mounting plate 110, and the two side wheels 120 can roll on the side 12 of the first end of the photovoltaic panel 10; one end of the cleaning member 300 is fixed to the first mounting plate 110.

[0035] Please refer to Figure 1, those skilled in the art can know that the photovoltaic panel 10 is generally installed at an angle, that is, there is a certain angle between the photovoltaic panel 10 and the installation surface, and the installation surface can be a horizontal ground or a horizontal roof, etc., so as to receive the maximum sunlight. Therefore, in the embodiment of the present application, by setting two side wheels 120, and making both side wheels 120 roll along the side 12 of the first end of the photovoltaic panel 10, and the cleaning member 300 is located on the upper surface 11 of the photovoltaic panel 10, it is equivalent to hanging the cleaning device on the photovoltaic panel 10 to prevent the cleaning device from being separated from the photovoltaic panel 10 or being stuck on the photovoltaic panel 10. In this way, the cleaning device can be moved on the photovoltaic panel 10 without additional components, and will not fall. And because both side wheels 120 can roll on the side 12 of the first end of the photovoltaic panel 10, the resistance to the movement of the cleaning device can be reduced.

[0036] Please refer to Figure 5 and Figure 6 In some embodiments, the photovoltaic panel 10 cleaning device further includes a first sensor 400 and a second sensor 500, and the side wheel 120 includes a rear wheel 122 and a front wheel 121; along the moving direction of the cleaning member 300, the rear wheel 122 and the first sensor 400 are both connected to the rear side of the first mounting plate, and the front wheel 121 and the second sensor 500 are both connected to the front side of the first mounting plate; the first sensor 400 is used to detect the first pressure or the first distance between the rear wheel 122 and the side 12 of the first end of the photovoltaic panel 10, that is, the first sensor 400 can be a force sensor or a displacement sensor. The second sensor 500 is used to detect the second pressure or the second distance between the front wheel 121 and the side 12 of the first end of the photovoltaic panel 10, that is, the second sensor 500 can be a force sensor or a displacement sensor. Along the moving direction of the cleaning member 300, when the first pressure is greater than the second pressure, or the first distance is less than the second distance, the first rolling assembly 100 is located behind the second rolling assembly 200; when the first pressure is less than the second pressure, or the first distance is greater than the second distance, the first rolling assembly 100 is located in front of the second rolling assembly 200.

[0037] In the embodiment of the present application, the first sensor 400 and the second sensor 500 are arranged on the mounting plate to detect the change in the pressure of the front wheel 121 and the rear wheel 122 on the side 12 of the photovoltaic panel 10, or to detect the change in the distance between the front wheel 121 and the rear wheel 122 and the side 12 of the photovoltaic panel 10, so as to judge the front and rear positions of the first rolling assembly 100 and the second rolling assembly 200 in the moving direction of the cleaning member 300, which is simple and convenient.

[0038] That is, the positional relationship between the first rolling assembly 100 and the second rolling assembly 200 can be determined by detecting the pressure between the front wheel 121 and the rear wheel 122 and the side 12 of the photovoltaic panel 10, or the positional relationship between the first rolling assembly 100 and the second rolling assembly 200 can be determined by detecting the distance between the front wheel 121 and the rear wheel 122 and the side 12 of the photovoltaic panel 10.

[0039] In some embodiments, when detecting the pressure changes between the front wheel 121 and the rear wheel 122 and the side 12 of the photovoltaic panel 10, the first sensor 400 and the second sensor 500 are both pressure sensors, wherein the first sensor 400 is used to detect the first pressure between the rear wheel 122 and the side 12 of the photovoltaic panel 10, and the second sensor 500 is used to detect the second pressure between the front wheel 121 and the side 12 of the photovoltaic panel 10.

[0040] Along the moving direction of the cleaning member 300, the first sensor 400 is connected to the rear side of the first rolling assembly 100, and the second sensor 500 is connected to the front side of the first rolling assembly 100; the first sensor 400 is used to detect a first pressure between the rear wheel 122 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10, and the second sensor 500 is used to detect a second pressure between the front wheel 121 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10; when the first pressure is greater than the second pressure, the moving speed of the first rolling assembly 100 is greater than the moving speed of the second rolling assembly 200; when the first pressure is less than the second pressure, the moving speed of the first rolling assembly 100 is less than the moving speed of the second rolling assembly 200.

[0041] Please refer to Figure 5 and Figure 6 It can be understood by those skilled in the art that the first rolling assembly 100 and the second rolling assembly 200 move in the same direction, that is, when the first rolling assembly 100 moves from left to right, the second rolling assembly 200 also moves from left to right. Figure 5 When the first rolling assembly 100 moves from right to left, the second rolling assembly 200 also moves from right to left, as shown in FIG. Figure 6As shown. Those skilled in the art may also understand that, in the embodiment of the present application, when the first pressure is equal to the second pressure, the moving speeds of the first rolling assembly 100 and the second rolling assembly 200 are equal, that is, the positions of the first rolling assembly 100 and the second rolling assembly 200 in the moving direction of the cleaning member 300 are the same. It should also be understood that in the actual operation of the photovoltaic panel cleaning device, the first pressure is equal to the second pressure, and an appropriate amount of error should be allowed. For example, when the difference between the first pressure and the second pressure is 1%, 2%, 3%, 4%, 5%, etc., it can be considered that the first pressure is equal to the second pressure. Specifically, those skilled in the art can make settings according to actual conditions to ensure that the first rolling assembly 100 and the second rolling assembly 200 do not get stuck.

[0042] Please refer to Figure 5 In the embodiment of the present application, the movement of the cleaning device from left to right is taken as an example for explanation. When the cleaning device moves from left to right, the rear side of the first rolling assembly 100 refers to the left side of the first rolling assembly 100, and the front side of the first rolling assembly 100 refers to the right side of the first rolling assembly 100. At this time, the rear side wheel 122 refers to the left side wheel 120, and the front side wheel 121 refers to the right side wheel 120. It can be understood by those skilled in the art that the movement of the cleaning device from right to left can refer to the movement of the cleaning device from left to right, such as Figure 6 As shown, the rear side of the first rolling component 100 refers to the right side of the first rolling component 100 , the front side of the first rolling component 100 refers to the left side of the first rolling component 100 , the rear side wheel 122 refers to the right side wheel 120 , and the front side wheel 121 refers to the left side wheel 120 .

[0043] Please refer to Figure 5 In the embodiment of the present application, the first sensor 400 is arranged on the rear side of the first rolling assembly 100, and is used to detect the first pressure between the rear side wheel 122 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10; the second sensor 500 is arranged on the front side of the first rolling assembly 100, and is used to detect the second pressure between the front side wheel 121 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10.

[0044] Please refer to Figure 5It can be known that when the cleaning device moves normally, the first pressure between the rear wheel 122 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10 should be equal to the second pressure between the front wheel 121 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10. At this time, the moving speed of the first rolling assembly 100 is equal to the moving speed of the second rolling assembly 200. When the first pressure is greater than the second pressure, the relative pressure between the rear wheel 122 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10 increases, and the relative pressure between the front wheel 121 of the first rolling assembly 100 and the side 12 of the photovoltaic panel 10 decreases, that is, the front side of the first rolling assembly 100 is tilted relative to the rear side. In this case, in the direction of movement, the first rolling assembly 100 lags behind the second rolling assembly 200, that is, the first rolling assembly 100 is on the left side of the second rolling assembly 200. At this time, it is generally because of foreign matter between the first rolling assembly 100 and the photovoltaic panel 10 or deformation of the photovoltaic panel 10 that the movement resistance of the first rolling assembly 100 becomes larger, thereby causing the second rolling assembly 200 to pull the first rolling assembly 100. If the interval between the first rolling assembly 100 and the second rolling assembly 200 along the moving direction of the cleaning member 300 is further increased, a jam will occur. In this case, in the embodiment of the present application, by increasing the moving speed of the first rolling assembly 100, the first rolling assembly 100 catches up with the second rolling assembly 200, so that the first rolling assembly 100 and the second rolling assembly 200 are at the same position in the direction of movement, so that the cleaning device can be prevented from jamming, the normal operation of the cleaning device is ensured, and the cleaning efficiency is improved.

[0045] Please refer to Figure 5 Obviously, when the first pressure is less than the second pressure, it indicates that the rear side of the first rolling assembly 100 is tilted relative to the front side. At this time, in the moving direction of the cleaning member 300, the first rolling assembly 100 is closer to the front side than the second rolling assembly 200, that is, at this time, the first rolling assembly 100 is on the right side of the second rolling assembly 200. At this time, it is equivalent to the first rolling assembly 100 pulling the second rolling assembly 200. The reason for this situation is generally due to the increase of the moving resistance between the second rolling assembly 200 and the photovoltaic panel 10 due to foreign matter or deformation of the photovoltaic panel 10. If the interval between the first rolling assembly 100 and the second rolling assembly 200 in the moving direction is further increased, the cleaning device will be stuck on the photovoltaic panel 10. In the embodiment of the present application, by increasing the moving speed of the second rolling assembly 200, the second rolling assembly 200 catches up with the first rolling assembly 100, so as to avoid the cleaning device from being stuck on the photovoltaic panel 10, and no manual intervention is required, thereby improving the cleaning efficiency.

[0046] Please refer to Figure 3Those skilled in the art may know that the front wheel 121 and the rear wheel 122 may be connected via a bracket equal to the first mounting plate 110, and bearings 700 etc. may be provided on the front wheel 121 and the rear wheel 122 to reduce the rolling resistance of the front wheel 121 and the rear wheel 122 on the side 12 of the first end of the photovoltaic panel 10.

[0047] Please continue to refer to Figure 3 It can be understood that the first sensor 400 can detect the pressure between the rear wheel 122 and the side 12 of the first end of the photovoltaic panel 10, and the second sensor 500 can detect the pressure between the front wheel 121 and the side 12 of the first end of the photovoltaic panel 10. Specifically, the first sensor 400 and the second sensor 500 can be installed on the first mounting plate 110 or on the bracket. Those skilled in the art can set it according to actual conditions, and no specific restrictions are made here. Of course, those skilled in the art can also understand that the first sensor 400 can also detect the pressure between the rear side of the first mounting plate 110 and the side 12 of the first end of the photovoltaic panel 10, and the second sensor 500 can also detect the pressure between the front side of the first mounting plate 110 and the side 12 of the first end of the photovoltaic panel 10. Specifically, those skilled in the art can make adjustments according to actual conditions, and no specific restrictions are made here.

[0048] Please continue to refer to Figure 3 Those skilled in the art can also understand that the front wheel 121 and the rear wheel 122 are respectively located on both sides of the cleaning member 300, so that the cleaning device can be ensured to run smoothly.

[0049] In other embodiments, when detecting the change in the distance between the front wheel 121 and the rear wheel 122 and the side 12 of the photovoltaic panel 10, the first sensor 400 and the second sensor 500 are both distance sensors, wherein the first sensor 400 is used to detect the first distance between the rear wheel 122 and the side 12 of the photovoltaic panel 10, and the second sensor 500 is used to detect the second distance between the front wheel 121 and the side 12 of the photovoltaic panel 10. At this time, along the moving direction of the cleaning member 300, when the first rolling assembly 100 and the second rolling assembly 200 operate normally, the front wheel 121 and the rear wheel 122 both roll on the side 12 of the photovoltaic panel 10, and at this time, it can be considered that the first distance between the front wheel 121 and the side 12 of the photovoltaic panel 10 is equal to the second distance between the rear wheel 122 and the side 12 of the photovoltaic panel 10, and the first distance and the second distance are both zero.

[0050] When the first rolling assembly 100 is located behind the second rolling assembly 200, that is, at this time, the first rolling assembly 100 lags behind the second rolling assembly 200, which is equivalent to the second rolling assembly 200 pulling the first rolling assembly 100 forward. At this time, the front wheel 121 of the first rolling assembly 100 will be tilted, so that the second distance between the front wheel 121 and the side surface 12 of the photovoltaic panel 10 will increase, and at this time, the rear wheel 122 is closely attached to the side surface 12 of the photovoltaic panel 10, that is, the distance between the rear wheel 122 and the side surface 12 of the photovoltaic panel 10 is The first distance will not change, so that the first distance is smaller than the second distance. Therefore, when it is known that the first distance is smaller than the second distance, it can also be determined that the first rolling component 100 is located behind the second rolling component 200, that is, at this time, the first rolling component 100 lags behind the second rolling component 200. At this time, it is necessary to increase the moving speed of the first rolling component 100 and increase the ability of the first rolling component 100 to cross obstacles so that the first rolling component 100 catches up with the second rolling component 200, thereby avoiding the cleaning equipment from being stuck on the photovoltaic panel 10.

[0051] When the first rolling assembly 100 is located in front of the second moving assembly, it is equivalent to the first rolling assembly 100 pulling the second rolling assembly 200 forward. At this time, the rear wheel 122 of the first rolling assembly 100 will be tilted, that is, the first distance between the rear wheel 122 and the side 12 of the photovoltaic panel 10 will increase, and the front wheel 121 will be close to the side 12 of the photovoltaic panel 10, that is, the second distance between the front wheel 121 and the side 12 of the photovoltaic panel 10 remains unchanged, so that the first distance is greater than the second distance. Therefore, when it is known that the first distance is greater than the second distance, it can be judged that the first rolling assembly 100 is located in front of the second rolling assembly 200. At this time, it is necessary to increase the moving speed of the second rolling assembly 200 to increase the ability of the second rolling assembly 200 to cross obstacles, so that the second rolling assembly 200 catches up with the first rolling assembly 100, thereby avoiding the cleaning equipment from being stuck on the photovoltaic panel 10 and improving the reliability of the cleaning equipment. Specifically, when the first sensor 400 and the second sensor 500 are distance sensors, reference may be made to the description that the first sensor 400 and the second sensor 500 are pressure sensors, which will not be repeated here.

[0052] Please refer to Figure 3 and Figure 4In some embodiments, the first rolling assembly 100 also includes two first walking wheels 130, and the second rolling assembly 200 includes a second mounting plate 210 and two second walking wheels 220; the end of the cleaning member 300 away from the first mounting plate 110 is fixedly connected to the second mounting plate 210; the two first walking wheels 130 are both connected to the first mounting plate 110, and the two first walking wheels 130 can roll along the upper surface 11 of the first end of the photovoltaic panel 10; the two second walking wheels 220 are both connected to the second mounting plate 210, and the two second walking wheels 220 can roll along the upper surface 11 of the second end of the photovoltaic panel 10. Those skilled in the art can understand that, the two first walking wheels 130 are respectively located on both sides of the cleaning member 300, and the two second walking wheels 220 are also respectively located on both sides of the cleaning member 300. More specifically, the interval between the two first walking wheels 130 is equal to the interval between the two second walking wheels 220, and one end of the cleaning member 300 is fixed in the middle of the two first walking wheels 130, and the other end of the cleaning member 300 is fixed in the middle of the two second walking wheels 220. Such an arrangement can ensure that the cleaning equipment is stable during movement.

[0053] Please refer to Figure 3 In some embodiments, the first rolling assembly 100 further includes a first driving device 140, which is mounted on the first mounting plate 110, and the first driving device 140 drives and connects the two first running wheels 130. It can be understood by those skilled in the art that the moving speed of the first rolling assembly 100 can be adjusted by adjusting the output power of the first driving device 140. For example, increasing the output power of the first driving device 140 can speed up the moving speed of the first rolling assembly 100, and reducing the output power of the first driving device 140 can reduce the moving speed of the first rolling assembly 100, which is convenient for adjustment. It can be understood by those skilled in the art that the first driving device 140 can be a motor, a hydraulic drive, etc., and is preferably a motor drive in the embodiment of the present application.

[0054] Please refer to Figure 3 and Figure 5 In some embodiments, the first driving device 140 also drives the front wheel 121 and the rear wheel 122. In the embodiment of the present application, by increasing the driving force to the front wheel 121 and the rear wheel 122, the front wheel 121, the rear wheel 122 and the two first running wheels 130 are all driven by power, thereby increasing the ability of the first rolling assembly 100 to cross obstacles, avoiding the first rolling assembly 100 from getting stuck on the photovoltaic panel, increasing the mobility of the first rolling assembly 100, reducing the fault alarm of the photovoltaic panel cleaning equipment, and improving the cleaning efficiency.

[0055] Please refer to Figure 3 and Figure 5 In some embodiments, the first rolling assembly 100 further includes a first transmission shaft 150, four active bevel gears 160 and four driven bevel gears 170, the first driving device 140 is drivingly connected to the first transmission shaft 150, the four active bevel gears 160 are all fixedly connected to the first transmission shaft 150, the four driven bevel gears 170 are respectively fixedly connected to the two first running wheels 130, the front wheel 121 and the rear wheel 122, the four active bevel gears 160 are respectively meshed with the four driven bevel gears 170, so that the first driving device 140 can simultaneously drive the two first running wheels 130, the front wheel 121 and the rear wheel 122. It can be understood by those skilled in the art that a support frame can also be provided on the first mounting plate 110 to support the first transmission shaft 150 and increase the structural strength. Specifically, one end of the support frame is fixedly connected to the first mounting plate 110, a bearing 700 is embedded in the support frame, and the first transmission rod passes through the bearing 700, so that the structural strength can be improved without increasing the rotation resistance of the first transmission shaft 150. Of course, those skilled in the art can design the number of support frames according to actual needs, and the embodiment of the present application does not make specific limitations.

[0056] Please refer to Figure 3 In the embodiment of the present application, the fixed end of the first driving device 140 is fixedly mounted on the first mounting plate 110, and the specific fixing method can be selected by those skilled in the art; the driving end of the first driving device 140 is drivingly connected to the first transmission shaft 150, so that the first transmission shaft 150 can be driven to rotate, and the first transmission shaft 150 further drives the four active bevel gears 160 to rotate, and through the meshing action of the active bevel gear 160 and the driven bevel gear 170, the two first walking wheels 130, the front side wheel 121 and the rear side wheel 122 can roll on the photovoltaic panel 10. In the embodiment of the present application, bevel gears are used for power transmission. Since the first walking wheel 130 rolls on the upper surface 11 of the photovoltaic panel 10, and the front wheel 121 and the rear wheel 122 move on the side 12 of the first end of the photovoltaic panel 10, the rolling surfaces of the two are not on the same plane and are perpendicular to each other. Therefore, in the process of force transmission, it is necessary to change the direction of force transmission, and the bevel gears can facilitate the change of the direction of force transmission, thereby realizing the simultaneous driving of the two first walking wheels 130, the front wheel 121 and the rear wheel 122. The use of bevel gears has a simple structure and can reduce the weight of the cleaning equipment, thereby preventing the cleaning equipment from squeezing and deforming the photovoltaic panel 10 and increasing the service life of the photovoltaic panel 10.

[0057] Please refer to Figure 4In some embodiments, the second rolling assembly 200 further includes a second driving device 230, a chain 240 and two sprockets 250, the second driving device 230 is mounted on the second mounting plate 210, the two sprockets 250 are respectively fixedly connected to the two second running wheels 220, the chain 240 is meshed with the two sprockets 250, and the second driving device 230 is driven to connect one of the sprockets 250. It can be understood that the second driving device 230 can also be a motor or other driving device, and in the embodiment of the present application, it is driven by a motor. Specifically, the fixed end of the second driving device 230 is fixed on the second mounting plate 210. To avoid interference, the second driving device 230 can be fixed on the side of the second mounting plate 210 away from the photovoltaic panel 10, and the driving end of the second driving device 230 can pass through the second mounting plate 210 to drive and connect one of the second running wheels 220.

[0058] In some other embodiments, in some embodiments, the second rolling assembly 200 further includes a second driving device, a belt and two pulleys, the two pulleys are respectively fixedly connected to the two second running wheels, the belt is sleeved on the two pulleys, and the second driving device is drivingly connected to one of the pulleys. In the embodiment of the present application, a belt and a pulley can be used to realize that the second driving device drives the two second running wheels. It can also be understood that those skilled in the art can also use other methods to drive the two second running wheels, such as a combination of a turbine and a worm, etc., and the embodiment of the present application does not make specific restrictions.

[0059] Those skilled in the art will appreciate that the moving speed of the second rolling assembly 200 can be adjusted by adjusting the output power of the second drive device 230. For example, increasing the output power of the second drive device 230 can increase the moving speed of the second rolling assembly 200, while reducing the output power of the second drive device 230 can reduce the moving speed of the second rolling assembly 200.

[0060] Please refer to Figure 4 In the embodiment of the present application, since the two second running wheels 220 are rolling on the upper surface 11 of the photovoltaic panel 10, there is no change in the moving surface. Therefore, the sprocket 250 and the chain 240 can be directly used for meshing transmission, which is simple and convenient. On the other hand, since the second running wheel 220 is located at the second end of the photovoltaic panel 10 and is lower than the first end of the photovoltaic panel 10, during the cleaning process of the cleaning equipment, foreign matter such as dust on the photovoltaic panel 10 is easy to fall onto the second rolling assembly 200, and the transmission method of the chain 240 and the sprocket 250 has a stronger dust resistance ability, which can increase the service life of the cleaning equipment.

[0061] Please refer to Figure 4In some embodiments, the photovoltaic panel cleaning device further includes a support wheel 600, and the support wheel 600 is connected to the cleaning member 300, and the support wheel 600 can roll along the upper surface 11 of the photovoltaic panel 10. In the case where the dimension from the first end to the second end of the photovoltaic panel 10 is long, the length of the cleaning member 300 is also long. In order to avoid the cleaning equipment from crushing the photovoltaic panel 10, the cleaning member 300 is generally made of a lighter material and is thinner to reduce the weight. Therefore, in order to avoid deformation of the cleaning member 300, a support wheel 600 can be added. By arranging the support wheel 600 in the middle of the cleaning member 300, deformation of the cleaning member 300 can be avoided.

[0062] It can be understood by those skilled in the art that the support wheel 600 can be connected to the cleaning member 300 through a bearing or the like to reduce the rolling resistance of the support wheel 600. It can also be understood by those skilled in the art that the number of the support wheels 600 can be two, and the two support wheels 600 are respectively located on both sides of the cleaning member 300, so that the cleaning member 300 can move more smoothly. Of course, it can also be understood by those skilled in the art that the number of the support wheels 600 can be three, four, etc. Specifically, those skilled in the art can determine it according to the length of the cleaning member 300, and the embodiment of the present application does not make specific restrictions.

[0063] Please refer to Figure 4 In some embodiments, the second rolling assembly 200 further includes a second transmission shaft 260, and the two ends of the second transmission shaft 260 are respectively connected to one of the second walking wheels 220 and the support wheel 600, and the support wheel 600 can be driven by the second driving device 230. In the embodiment of the present application, by increasing the driving force of the support wheel 600, the mobility of the cleaning equipment can be further increased. Since the photovoltaic panel 10 is set in the wild for a long time, it is inevitable that the photovoltaic panel 10 will be deformed, which may cause the second walking wheel 220 to be spaced from the surface of the photovoltaic panel 10 during the rolling process, thereby affecting the movement of the second rolling assembly 200.

[0064] In the embodiment of the present application, by connecting the support wheel 600 to one of the second walking wheels 220, the walking ability of the second rolling assembly 200 can be greatly increased. At this time, the second walking wheel 220 and the support wheel 600 are both powered to drive, so that the ability of the second rolling assembly 200 to cross obstacles can be increased, the fault alarm of the photovoltaic panel cleaning equipment can be reduced, and the cleaning efficiency can be improved. It can also be understood by those skilled in the art that the number of the support wheels 600 can also be two. When the number of the support wheels 600 is two, the number of the second transmission shaft 260 can also be two. Of course, it can also be understood by those skilled in the art that the second transmission shaft 260 can also be provided to connect the support wheel 600 to the first walking wheel 130.

[0065] Please refer to Figure 1 In some embodiments, the cleaning member 300 includes a cleaning portion and a supporting portion, the two opposite ends of the supporting portion are respectively fixedly connected to the first rolling assembly 100 and the second rolling assembly 200, the cleaning portion is arranged on the supporting portion, and the cleaning portion is located on the side of the supporting portion facing the photovoltaic panel 10, and the side of the cleaning portion facing the photovoltaic panel 10 contacts the upper surface 11 of the photovoltaic panel 10. Specifically, the cleaning portion can be a brush, a rolling brush, a rolling adhesive paper, etc.

[0066] Of course, those skilled in the art should also understand that the photovoltaic panel cleaning equipment provided in the embodiment of the present application should also include a control chip, etc., for adjusting the movement speed of the first rolling assembly 100 and the second rolling assembly 200 according to the feedback of the first sensor 400 and the second sensor 500.

[0067] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its central idea.

Claims

1. A photovoltaic panel cleaning device, used for cleaning foreign matter from a photovoltaic panel, wherein the photovoltaic panel comprises an upper surface and a side surface connected to the upper surface, and in the direction of gravity, the side surface of the photovoltaic panel is the highest surface of the photovoltaic panel, characterized in that: The photovoltaic panel cleaning device comprises a first rolling assembly, a second rolling assembly and a cleaning member; The first rolling assembly and the second rolling assembly are fixedly connected to opposite ends of the cleaning member, respectively. The cleaning member faces the upper surface of the photovoltaic panel. Both the first rolling assembly and the second rolling assembly can move on the upper surface of the photovoltaic panel to drive the cleaning member to move, so that the cleaning member cleans the upper surface of the photovoltaic panel. The first rolling assembly is at least partially overlapped with the side surface of the photovoltaic panel. Along the moving direction of the cleaning member, when the first rolling assembly is located behind the second rolling assembly, the moving speed of the first rolling assembly is greater than the moving speed of the second rolling assembly; when the first rolling assembly is located in front of the second rolling assembly, the moving speed of the first rolling assembly is less than the moving speed of the second rolling assembly.

2. The photovoltaic panel cleaning device according to claim 1, characterized in that: The photovoltaic panel comprises a first end and a second end opposite to each other along a first direction; the first rolling assembly is arranged at the first end of the photovoltaic panel, and the second rolling assembly is arranged at the second end of the photovoltaic panel; in the direction of gravity, the first end of the photovoltaic panel is higher than the second end of the photovoltaic panel, and the side surface of the photovoltaic panel is the side surface of the first end of the photovoltaic panel; the moving direction of the cleaning member is perpendicular to the first direction; The first rolling assembly includes a first mounting plate and two side wheels, the two side wheels are respectively connected to the first mounting plate, and both side wheels can roll on the side of the first end of the photovoltaic panel; one end of the cleaning member is fixed to the first mounting plate.

3. The photovoltaic panel cleaning device according to claim 2, characterized in that: The photovoltaic panel cleaning device further comprises a first sensor and a second sensor, and the side wheels comprise a rear side wheel and a front side wheel; Along the moving direction of the cleaning member, the rear wheel and the first sensor are both connected to the rear side of the first mounting plate, and the front wheel and the second sensor are both connected to the front side of the first mounting plate; The first sensor is used to detect a first pressure or a first distance between the rear wheel and the side of the first end of the photovoltaic panel, and the second sensor is used to detect a second pressure or a second distance between the front wheel and the side of the first end of the photovoltaic panel; Along the moving direction of the cleaning member, when the first pressure is greater than the second pressure, or when the first distance is less than the second distance, the first rolling assembly is located behind the second rolling assembly; When the first pressure is less than the second pressure, or when the first distance is greater than the second distance, the first rolling component is located in front of the second rolling component.

4. The photovoltaic panel cleaning device according to claim 2 or 3, characterized in that: The first rolling assembly further comprises two first running wheels, and the second rolling assembly comprises a second mounting plate and two second running wheels; One end of the cleaning member away from the first mounting plate is fixedly connected to the second mounting plate; The two first running wheels are both connected to the first mounting plate, and the two first running wheels can roll along the upper surface of the first end of the photovoltaic panel; The two second running wheels are both connected to the second mounting plate, and the two second running wheels can roll along the upper surface of the second end of the photovoltaic panel.

5. The photovoltaic panel cleaning device according to claim 4, characterized in that: The first rolling assembly also includes a first driving device, which is mounted on the first mounting plate and drives and connects the two first traveling wheels.

6. The photovoltaic panel cleaning device according to claim 5, characterized in that: The first driving device also drives and connects the front wheel and the rear wheel.

7. The photovoltaic panel cleaning device according to claim 6, characterized in that: The first rolling assembly also includes a first transmission shaft, four active bevel gears and four driven bevel gears. The first driving device is drivingly connected to the first transmission shaft. The four active bevel gears are fixedly connected to the first transmission shaft. The four driven bevel gears are respectively fixedly connected to the two first traveling wheels, the front wheels and the rear wheels. The four active bevel gears are respectively meshed with the four driven bevel gears, so that the first driving device can simultaneously drive the two first traveling wheels, the front wheels and the rear wheels.

8. The photovoltaic panel cleaning device according to claim 4, characterized in that: The second rolling assembly further includes a second driving device, which is mounted on the second mounting plate and is used to drive the two second traveling wheels.

9. The photovoltaic panel cleaning device according to claim 8, characterized in that: The photovoltaic panel cleaning device also includes a supporting wheel, which is connected to the cleaning member and can roll along the upper surface of the photovoltaic panel.

10. The photovoltaic panel cleaning device according to claim 9, characterized in that: The second rolling assembly further includes a second transmission shaft, and two ends of the second transmission shaft are respectively connected to one of the second walking wheels and the support wheel, and the support wheel can be driven by the second driving device.

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