An extended mobile cleaning device applicable to photovoltaic panels

Abstract

The present invention relates to the field of photovoltaic design, and particularly to an extended mobile cleaning device applicable to photovoltaic panels. The above technical object of the present invention is achieved through the following technical solutions: An extended mobile cleaning device applicable to photovoltaic panels includes a device assembly, the device assembly comprising two or more device monomers, and adjacent device monomers are connected by connectors. Each device monomer includes a main housing, a traveling wheel connected to the main housing, and a cleaning cylinder installed in the inner cavity of the main housing and used for cleaning the surface of the photovoltaic panel. The extending direction of the cleaning cylinder is inclined and non-perpendicular to the traveling direction of the device monomer. The object of the present invention is to provide an extended mobile cleaning device applicable to photovoltaic panels, which can adapt to the cleaning work of large-sized photovoltaic panels, and has no jamming during the cleaning process, smooth traveling, and improves the overall cleaning effect.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic design, and particularly to an extended mobile cleaning device suitable for photovoltaic panels. Background Art

[0002] With the prominence of energy problems, new energy technologies have been developed more in recent years. Among them, the photovoltaic industry collects and utilizes solar energy, and the energy utilization process is clean and environmentally friendly, attracting more capital investment and technological progress.

[0003] The hardware of the photovoltaic industry often includes photovoltaic panel components. A photovoltaic panel component is a power generation device that generates direct current when exposed to sunlight, and is composed of thin solid photovoltaic cells made almost entirely of semiconductor materials (such as silicon). Since photovoltaic panels are exposed outdoors for a long time, cleaning problems will occur, and dust and debris will accumulate on the surface. If not cleaned for a long time, the sunlight will be blocked by dirt, which will have a certain impact on the power generation efficiency.

[0004] In the prior art, manual cleaning is mostly used for cleaning. However, the photovoltaic panel components are large in size, have a wide cleaning area, high manual intensity, and low efficiency. In addition, since the photovoltaic panel components are often installed at a certain height above the ground, manual operation also has certain safety hazards. In such a technical background, some photovoltaic manufacturers also use automated intelligent devices to clean the surface of photovoltaic panels. For example, the Chinese invention patent document with the publication number CN201910953426.1 discloses a photovoltaic panel intelligent cleaning robot. The robot includes a walking structure and a cleaning structure installed on the walking structure. During the process of the robot walking and moving on the surface of the photovoltaic panel, the cleaning structure automatically wipes and cleans the photovoltaic panel.

[0005] However, in actual use, the sizes and scales of photovoltaic panels are different and tend to increase. The original photovoltaic panel intelligent robots cannot meet the increasing cleaning requirements of photovoltaic panels. Simply lengthening the intelligent robot in the length direction will cause practical problems such as cleaning jams and uneven walking, which will have an adverse impact on the photovoltaic cleaning work. Summary of the Invention

[0006] The purpose of the present invention is to provide an extended mobile cleaning device suitable for photovoltaic panels, which can adapt to the cleaning work of large-sized photovoltaic panels, has no jams during the cleaning process, walks smoothly, and improves the overall cleaning effect.

[0007] The above technical object of the present invention is achieved through the following technical solutions: A lengthened mobile cleaning device suitable for photovoltaic panels, including a device assembly, the device assembly includes two or more device monomers, and adjacent device monomers are connected by connectors. Each device monomer includes a main housing, a walking wheel connected to the main housing, and a cleaning cylinder installed in the inner cavity of the main housing and used for cleaning the surface of the photovoltaic panel. The extending direction of the cleaning cylinder is inclined and non-perpendicular to the traveling direction of the device monomer.

[0008] As a preference of the present invention, the cleaning cylinder includes a rotating shaft and a brush spirally installed on the rotating shaft.

[0009] As a preference of the present invention, an installation plate is installed on the main housing, and one end of the cleaning cylinder is connected to the installation plate.

[0010] As a preference of the present invention, the cleaning cylinder is vertically connected to the installation plate, and the extending direction of the installation plate is inclined with respect to the traveling direction of the device monomer.

[0011] As a preference of the present invention, it further includes a transmission device and a driving device for driving the cleaning cylinder to rotate. The number of driving devices is one, and the transmission device is used to transmit the driving power to the adjacent cleaning cylinders.

[0012] As a preference of the present invention, the transmission device includes a first sprocket, a second sprocket, and a chain connecting the first sprocket and the second sprocket. The first sprocket and the second sprocket are respectively connected to two adjacent cleaning cylinders.

[0013] As a preference of the present invention, the connector is a connecting column extending in the length direction of the device assembly, and the connecting column passes through the center of the walking wheel.

[0014] As a preference of the present invention, a contact guiding wheel is further installed on the device assembly, and the plane in which the contact guiding wheel extends is parallel to the extending plane of the photovoltaic panel.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The cleaning device can automatically walk on the photovoltaic panel and clean the photovoltaic panel, with high efficiency and less manual work.

[0017] 2. The cleaning device includes two or more device monomers, which are modularly installed to adapt to the cleaning work of photovoltaic panels with different length specifications, which is convenient and fast.

[0018] 3. The cleaning cylinder is inclined, with small resistance and no jamming during the cleaning process.

[0019] 4. The transmission device is applicable to sprockets and chains, with small thickness and width, no cleaning blank, and improved cleaning effect. Description of the Drawings

[0020] Figure 1 is a schematic diagram of Embodiment 1;

[0021] Figure 2 is Figure 1 a schematic diagram in another direction;

[0022] Figure 3 is Figure 2 a detailed enlarged view of part A in

[0023] Figure 4 a schematic diagram of the transmission device.

[0024] In the figure:

[0025] 1. Equipment assembly, 11. Equipment unit, 111. Main housing, 112. Traveling wheel, 113. Cleaning cylinder, 1131. Rotating shaft, 1132. Brush, 12. Connecting piece, 2. Contact guiding wheel, 3. Mounting plate, 4. Driving device, 5. Transmission device, 51. Sprocket one, 52. Sprocket two, 6. Mounting plate. Detailed Embodiment

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] This specific embodiment is only an interpretation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0028] Embodiment 1, a lengthened mobile cleaning device applicable to photovoltaic panels, as Figure 1 shown, includes an equipment assembly 1, which is composed of a number of equipment units 11. The structure of each equipment unit 11 is similar, and the total number of equipment units 11 depends on the specific use environment, so that the product supports modular installation and maintenance and can adjust the total length according to the use environment. In the working state, the equipment assembly 1 moves on the surface of the photovoltaic panel and cleans the surface of the photovoltaic panel during the movement.

[0029] As Figure 2 and Figure 3As shown, in this embodiment, there are two individual devices 11, arranged in the length direction. The connecting member 12 connects the two individual devices 11. Each individual device 11 includes a main housing 111 and a traveling wheel 112, which is the same as the prior art, and the details will not be elaborated here. Different from the prior art, each individual device 11 is separately provided with a cleaning cylinder 113. The cleaning cylinder 113 serves as the main cleaning component, which includes a rotating shaft 1131 and a brush 1132. The brush 1132 is spiral and installed on the rotating shaft 1131. After the rotating shaft 1131 is driven by a driving component (such as a motor), the rotating brush 1132 will clean the surface of the photovoltaic panel.

[0030] In this technical solution, it is particularly necessary to define and explain the extending manner of the cleaning cylinder 113. As Figure 3 and Figure 4 shown, the entire device assembly 1 travels in the width direction of the device assembly 1, and the traveling wheels 112 are also arranged in the wheel direction. However, the extending direction of each cleaning cylinder 113 is inclined, that is, it is not perpendicular to the traveling direction of the device assembly 1 in the conventional way. As Figure 4 shown, the extending direction of each cleaning cylinder 113 is inclined with respect to the M direction in the figure, rather than vertical. The reason for such a design is that during the cleaning process, the surface of the photovoltaic panel often has a protruding frame extending in the length direction of the photovoltaic panel. The inclined setting of the cleaning cylinder 113 in this case makes the part of the cleaning cylinder 113 that needs to cross the frame at a certain moment only a relatively small section. If the cleaning cylinder 113 is set vertically in the conventional way, it is very likely that the part of the cleaning cylinder 113 that needs to cross the frame at a certain moment is the entire cleaning cylinder 113, and the cleaning cylinder 113 will encounter a large resistance. This resistance may be overcome in the conventional solution, but when facing a photovoltaic panel with a very long length, the resistance is large, making it difficult or even impossible for the device assembly 1 to cross the frame, resulting in an uneven or even stagnant cleaning process.

[0031] In this case, an installation plate 6 is provided between the two individual devices 11. As Figure 3 shown, the two cleaning cylinders 113 are connected to the installation plate 6. The installation plate 6 is connected to the connecting plate of the main housing 111 in the width direction. The installation plate 6 itself is inclined, and the two cleaning cylinders 113 can be perpendicular to the installation plate 6.

[0032] Furthermore, the driving device 4 can be installed on the installation plate 6. As Figure 3 and Figure 4 shown, in this embodiment, the two cleaning cylinders 113 are both driven by a single motor. The output shaft of the driving device 4, that is, the motor, transmits power to one cleaning cylinder 113 through a synchronous belt, and the power between the two cleaning cylinders 113 is transmitted by a transmission device 5.

[0033] It should be noted here that in this technical solution, the transmission device 5 does not adopt traditional gear combinations or synchronous belts, etc., and is limited to the transmission form of sprocket chains. A first sprocket 51 and a second sprocket 52 are respectively connected to the two cleaning cylinders 113, and they are connected by a chain (not shown in the figure). The reason for this setting is that compared with other transmission methods, the combination of sprockets and chains has the characteristics of small width and small thickness. Specifically, as Figure 4 shown, since the width of the sprocket is small, the distance between the two sprockets can be controlled to be very small, that is, the value of W in the figure is relatively small. Such a setting makes the adjacent cleaning cylinders 113 have good continuity when cleaning the photovoltaic panel and is not easy to generate horizontal cleaning faults. On the other hand, since the thickness of the sprocket is small, the distance value of the brushes of the two cleaning cylinders 113 in the length direction is short, that is Figure 4 the H part in is shorter. In this way, when cleaning, it is not easy to generate cleaning blanks in the length direction. In the traditional design of photovoltaic panels, there is a 20-25 mm border between adjacent panels in the length direction. Therefore, even if there is a certain distance of cleaning blanks, it does not affect the cleaning of the panel. However, with the iterative upgrade of products, the design of the border is getting narrower and narrower, and even some products have a borderless design. At this time, the cleaning blanks in the length direction have a greater impact on the overall cleaning effect. In this technical solution, the use of sprocket transmission with small thickness greatly reduces the cleaning blanks in the length direction and improves the cleaning effect.

[0034] As Figure 1 and Figure 2 shown, a contact guide wheel 2 is also provided on the equipment assembly 1, and its extending direction often extends in the horizontal direction and is perpendicular to the extending direction of the traveling wheel 112. The function of the contact guide wheel 2 is to contact the bracket on the photovoltaic panel to provide guidance for the movement of the equipment assembly 1 and improve the movement stability.

[0035] Embodiment 2: The difference from Embodiment 1 is that the transmission device 5 is cancelled, and each cleaning cylinder 113 is individually equipped with a driving device 4. The advantage of this is that when the number of equipment units 11 is large, the power of one driving device 4 is limited and cannot generate sufficient power for the operation of multiple cleaning cylinders 113. And the individually configured driving device 4 can improve the operation power of the cleaning cylinder 113.

Claims

1. An extended mobile cleaning device applicable to a photovoltaic panel, comprising a device assembly (1). Characterized in that: The device assembly (1) includes two or more device units (11), and adjacent device units (11) are connected by a connecting member (12). Each device unit (11) is provided with a main housing (111), a traveling wheel (112) connected to the main housing (111), and a cleaning cylinder (113) installed in the inner cavity of the main housing (111) and used for cleaning the surface of the photovoltaic panel. The extending direction of the cleaning cylinder (113) is inclined and non-perpendicular to the traveling direction of the device unit (11). An installation plate (6) is installed on the main housing (111), one end of the cleaning cylinder (113) is connected to the installation plate (6), the cleaning cylinder (113) is perpendicularly connected to the installation plate (6), the extending direction of the installation plate (6) is inclined with respect to the traveling direction of the device unit (11), and the cleaning cylinder (113) includes a rotating shaft (1131) and a brush (1132) spirally installed on the rotating shaft (1131).

2. The extended mobile cleaning device applicable to a photovoltaic panel according to claim 1. Characterized in that: It further includes a transmission device (5) and a driving device (4) for driving the cleaning cylinder (113) to rotate. The number of the driving devices (4) is one, and the transmission device (5) is used to transmit the driving power to the adjacent cleaning cylinders (113).

3. The extended mobile cleaning device applicable to a photovoltaic panel according to claim 2. Characterized in that: The transmission device (5) includes a first sprocket (51), a second sprocket (52), and a chain connecting the first sprocket (51) and the second sprocket (52). The first sprocket (51) and the second sprocket (52) are respectively connected to two adjacent cleaning cylinders (113).

4. The extended mobile cleaning device applicable to a photovoltaic panel according to claim 1. Characterized in that: The connecting member (12) is a connecting column extending in the length direction of the device assembly (1), and the connecting column passes through the center of the traveling wheel (112).

5. The extended mobile cleaning device applicable to a photovoltaic panel according to claim 1. Characterized in that: A contact guiding wheel (2) is further installed on the device assembly (1), and the plane in which the contact guiding wheel (2) extends is parallel to the extending plane of the photovoltaic panel.

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