Self-adaptive photovoltaic cleaning robot

Abstract

The utility model discloses a self-adaptive photovoltaic cleaning robot, which relates to the field of photovoltaic cleaning, and comprises a connecting frame and a support frame connected with the connecting frame, the connecting frame is connected with a pair of obliquely distributed support arms through rotating shafts, the bottom ends of the support arms are provided with rollers, the support arms are provided with synchronous adjusting units, and the synchronous adjusting units are connected with the connecting frame through rotating shafts. And when the angles of the pair of supporting arms are synchronously adjusted, the distance between the pair of rollers is also synchronously adjusted until the rollers abut against the surface of the photovoltaic panel. According to the photovoltaic panel cleaning device, the synchronous adjusting unit is arranged on the supporting arm, the distance between the supporting arm and the idler wheel can be adaptively changed according to the specification of a photovoltaic panel, and the photovoltaic panel cleaning device can be suitable for photovoltaic panels of different specifications. And when the specification of the photovoltaic panel is changed, the roller can still walk on the surface of the roller, so that the cleaning rolling brush can clean the photovoltaic panels with different specifications, and the application range is expanded.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning, and in particular to an adaptive photovoltaic cleaning robot. Background Technology

[0002] A photovoltaic (PV) panel, also known as a solar panel, is a device that directly converts the light energy of sunlight into electrical energy. It consists of thin, solid-state photovoltaic cells made almost entirely of semiconductor materials (such as silicon). When a PV panel is exposed to sunlight, it generates direct current (DC).

[0003] Photovoltaic panels have a wide range of applications. Simple photovoltaic cells can power watches and computers, while more complex photovoltaic systems can provide lighting for homes and even supply power to the grid. Photovoltaic panel modules can be used on rooftops, building surfaces, windows, skylights, or shading devices. In particular, rooftop photovoltaic canopies not only generate electricity but also provide waterproofing and insulation.

[0004] Cleaning photovoltaic (PV) panels is a crucial part of maintenance, not only improving their power generation efficiency but also extending their lifespan. Cleaning should be considered when PV panel efficiency drops by 5% due to contamination. The main working principle of PV panels is to absorb sunlight and convert it into electricity; however, when dust, leaves, or other debris accumulate on their surface, their light absorption efficiency significantly decreases.

[0005] Current methods for cleaning photovoltaic (PV) panels mostly require manual operation or the use of drive equipment to move the cleaning device across the PV panel surface. To maintain stability and ensure a secure connection between the cleaning device and the PV panel, most cleaning devices are equipped with rollers that can move across the PV panel surface, allowing the device to crawl stably and perform cleaning operations. However, the rollers are usually in a fixed position. If cleaning PV panels of different sizes is required, and the panel size decreases, the roller position cannot be adjusted accordingly. This prevents the cleaning device from achieving a precise and stable connection with the PV panel surface, affecting the cleaning effect and potentially leading to incomplete cleaning. Utility Model Content

[0006] To address the aforementioned issues, this application provides an adaptive photovoltaic cleaning robot.

[0007] To achieve the above objectives, this application provides the following technical solution: an adaptive photovoltaic cleaning robot, including a connecting frame and a support frame connected to the connecting frame. Each connecting frame is connected to a pair of inclined support arms via a rotating shaft. Each support arm has a roller at its bottom end and a synchronous adjustment unit on each support arm. When the angle of the pair of support arms is synchronously adjusted, the distance between the pair of rollers is also synchronously adjusted until the surfaces of the photovoltaic panels on the rollers abut against each other.

[0008] A movable cleaning roller brush is provided below the support frame. When the distribution angle of the support arm and the spacing of the rollers change, the straight-line distance between the connecting frame and the photovoltaic panel changes. The position of the cleaning roller brush can be adjusted according to the straight-line distance between the connecting frame and the photovoltaic panel until the cleaning roller brush contacts the photovoltaic panel.

[0009] Furthermore, the synchronous adjustment unit includes a traction arm connected to the support arm via a rotating shaft, and a sliding seat mounted on the end of the traction arm away from the support arm via a rotating shaft. The connecting frame is provided with a synchronous drive structure adapted to the sliding seat. When a pair of sliding seats and the traction arm move synchronously in opposite directions, the distribution angle of the support arm changes.

[0010] Furthermore, the synchronous drive structure includes a first threaded rod and a second threaded rod installed on both sides of the connecting frame, and a pair of sliding seats are respectively installed on the first threaded rod and the second threaded rod. The thread distribution directions of the first threaded rod and the second threaded rod are opposite. When the first threaded rod and the second threaded rod rotate synchronously, the pair of sliding seats move synchronously in opposite directions.

[0011] Furthermore, the synchronous drive structure also includes a drive motor located within the connecting frame. The output end of the drive motor is connected to a first threaded rod. A first driving gear is coaxially distributed on the first threaded rod. A first driven gear meshes with the first driving gear directly below it. The first driven gear is connected to a second driven gear via a linkage rod located on the connecting frame. A second driving gear, parallel to the first driving gear, meshes above the second driven gear. The second driving gear is mounted on the second threaded rod and coaxially distributed with it.

[0012] Furthermore, both sides of the connecting frame are provided with docking frames, and the ends of the first threaded rod and the second threaded rod away from the connecting frame are both provided on the docking frames.

[0013] Furthermore, the connecting frame is connected to the docking frame via a limiting rod, which passes through the sliding seat.

[0014] Furthermore, the cleaning roller brush is equipped with a lifting seat that can move synchronously with it, and the support frame is equipped with a cylinder, the push rod at the output end of the cylinder being connected to the lifting seat.

[0015] Furthermore, the lifting seat is provided with guide rods that are perpendicular to it, and the support frame is provided with a channel that can accommodate the guide rods. When the lifting seat moves, the guide rods slide synchronously within the channel.

[0016] Furthermore, a second drive motor is provided at the central axis of the cleaning roller brush to drive it to rotate, and the second drive motor is located on the outside of the lifting base.

[0017] Furthermore, the spacing between the rollers is always less than the length of the cleaning roller brush.

[0018] In summary, the technical effects and advantages of this utility model are as follows:

[0019] This invention features a synchronous adjustment unit on the support arm, allowing the distance between the support arm and the rollers to adapt to the specifications of the photovoltaic panel, making it suitable for photovoltaic panels of different sizes. Even when the specifications of the photovoltaic panel change, the rollers can still move on its surface, enabling the cleaning brush to clean photovoltaic panels of various sizes, thus expanding its applicability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the second-view structure of the present invention.

[0023] Figure 3 This is a front view structural diagram of the present utility model.

[0024] Figure 4 This is a schematic diagram showing the position of the traction arm of this utility model.

[0025] Figure 5 This is a schematic diagram showing the positions of the lifting seat and the cleaning roller brush of this utility model.

[0026] In the diagram: 1. Connecting frame; 2. Docking frame; 3. Limiting rod; 4. First threaded rod; 41. Drive motor one; 42. First driving gear; 43. First driven gear; 44. Linkage rod; 45. Second driven gear; 46. Second driving gear; 5. Second threaded rod; 6. Sliding seat; 7. Traction arm; 8. Support arm; 9. Roller; 10. Support frame; 11. Lifting seat; 12. Cleaning roller brush; 121. Drive motor two; 13. Cylinder; 14. Guide rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: Reference Figure 1-5 An adaptive photovoltaic cleaning robot is shown, comprising a connecting frame 1 and a support frame 10 connected to the connecting frame 1. Each connecting frame 1 has a pair of inclined support arms 8 connected to it via a pivot. Each support arm 8 has a roller 9 at its bottom end and a synchronous adjustment unit. When the angle of the pair of support arms 8 is adjusted synchronously, the distance between the pair of rollers 9 is also adjusted synchronously until the surfaces of the photovoltaic panels on the rollers 9 abut against each other. Therefore, the distance between the support arms 8 and the rollers 9 can adapt to the specifications of the photovoltaic panels. After the surfaces of the photovoltaic panels on the rollers 9 abut against each other, the robot can move on the surface of the photovoltaic panels while mounted on the connecting frame 1 and the support frame 10.

[0029] A movable cleaning roller brush 12 is provided below the support frame 10. When the distribution angle of the support arm 8 and the spacing of the rollers 9 change, the straight distance between the connecting frame 1 and the photovoltaic panel changes. Therefore, in order to enable the cleaning roller brush 12 to make smooth contact with photovoltaic panels of different specifications, the position of the cleaning roller brush 12 can also be adjusted according to the straight distance between the connecting frame 1 and the photovoltaic panel until the cleaning roller brush 12 contacts the photovoltaic panel.

[0030] The synchronous adjustment unit includes a traction arm 7 connected to the support arm 8 via a rotating shaft, and a sliding seat 6 mounted on the end of the traction arm 7 away from the support arm 8 via a rotating shaft. The connecting frame 1 is equipped with a synchronous drive structure adapted to the sliding seat 6. When the pair of sliding seats 6 and the traction arm 7 move synchronously in opposite directions, the distribution angle of the support arm 8 changes. Therefore, the distance between the pair of rollers 9 also changes, allowing the distance between the rollers 9 to adapt to the specifications of the photovoltaic panel, making it suitable for photovoltaic panels of different sizes. When the specifications of the photovoltaic panel change, the rollers 9 can still move on its surface, thus the cleaning brush 12 can also perform cleaning operations on photovoltaic panels of different sizes.

[0031] like Figure 3 As shown, the synchronous drive structure includes a first threaded rod 4 and a second threaded rod 5 mounted on both sides of the connecting frame 1. A pair of sliding seats 6 are respectively mounted on the first threaded rod 4 and the second threaded rod 5. The thread distribution directions of the first threaded rod 4 and the second threaded rod 5 are opposite. When the first threaded rod 4 and the second threaded rod 5 rotate synchronously, the pair of sliding seats 6 move synchronously in opposite directions. This drives a pair of traction arms 7 to move synchronously in opposite directions, thereby adjusting the distribution angle of the support arms 8.

[0032] like Figure 3 As shown, specifically, the synchronous drive structure also includes a drive motor 41 located in the connecting frame 1. The output end of the drive motor 41 is connected to the first threaded rod 4. The first threaded rod 4 is provided with a first driving gear 42 coaxially distributed with it. Directly below the first driving gear 42 is a first driven gear 43 meshing with it. The first driven gear 43 is connected to a second driven gear 45 through a linkage rod 44. The linkage rod 44 is located on the connecting frame 1. Above the second driven gear 45, a second driving gear 46 is meshed and connected to it, which is parallel to the first driving gear 42. The second driving gear 46 is mounted on the second threaded rod 5 and is coaxially distributed with the second threaded rod 5.

[0033] Therefore, when the first threaded rod 4 rotates under the drive of the drive motor 41, the meshing action of the first driving gear 42 and the first driven gear 43 causes the linkage rod 44 and the second driven gear 45 to rotate in opposite directions, and further causes the second driving gear 46 and the second threaded rod 5 to rotate in the same direction as the rotation direction of the first threaded rod 4, so as to achieve the purpose of synchronously driving a pair of sliding seats 6 to move synchronously in opposite directions.

[0034] like Figure 2 As shown, in order to make the entire photovoltaic cleaning robot suitable for different drive structures, docking frames 2 for external drive structures are provided on both sides of the connecting frame 1. In order to maintain the stability of the first threaded rod 4 and the second threaded rod 5, the ends of the first threaded rod 4 and the second threaded rod 5 away from the connecting frame 1 are both located on the docking frame 2.

[0035] The connecting frame 1 is connected to the docking frame 2 via a limiting rod 3, which passes through the sliding seat 6. When the first threaded rod 4 and the second threaded rod 5 rotate, driving the sliding seat 6 to move linearly, the limiting rod 3 prevents the sliding seat 6 from shaking or shifting during movement.

[0036] like Figure 4 As shown, the cleaning roller brush 12 is equipped with a lifting seat 11 that can move synchronously with it, and the support frame 10 is equipped with a cylinder 13. The push rod at the output end of the cylinder 13 is connected to the lifting seat 11. When the cylinder 13 is running, it can control the lifting seat 11 and the cleaning roller brush 12 to adjust their height synchronously, so that the height of the cleaning roller brush 12 can be adaptively adjusted according to the straight-line distance between the connecting frame 1 and the photovoltaic panel until the cleaning roller brush 12 contacts the photovoltaic panel.

[0037] like Figure 4 As shown, in order to maintain the stability of the lifting seat 11 and the cleaning roller brush 12 during the synchronous height adjustment process, a guide rod 14 is provided on the lifting seat 11 and is perpendicular to it. The support frame 10 is provided with a channel that can accommodate the guide rod 14. When the lifting seat 11 moves, the guide rod 14 slides synchronously in the channel.

[0038] like Figure 5 As shown, in order to enable the cleaning roller brush 12 to rotate, a drive motor 121 is provided at the central axis of the cleaning roller brush 12 to drive its rotation. The drive motor 121 is located on the outside of the lifting base 11. When the roller 9 moves synchronously on the surface of the photovoltaic panel, the cleaning roller brush 12 can rotate synchronously to remove dirt from the surface of the photovoltaic panel.

[0039] In this application, the spacing between the rollers 9 is always less than the length of the cleaning brush 12. Therefore, no matter where the rollers 9 are adjusted according to the specifications of the photovoltaic panel, the cleaning range of the cleaning brush 12 can cover the photovoltaic panel, ensuring the comprehensiveness of the cleaning work.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adaptive photovoltaic cleaning robot comprising a connecting frame (1), a supporting frame (10) connected to the connecting frame (1), characterized in that: The connecting frame (1) is connected with a pair of inclined support arms (8) through a rotating shaft, the bottom end of the support arm (8) is provided with a roller (9), and the support arm (8) is provided with a synchronous adjusting unit, when the angle of the pair of support arms (8) is synchronously adjusted, the distance between the pair of rollers (9) is also synchronously adjusted, until the surface of the photovoltaic panel of the roller (9) abuts; The lower side of the support frame (10) is provided with a movable cleaning roller brush (12), when the distribution angle of the support arm (8) and the distance between the rollers (9) change, the straight line distance between the connecting frame (1) and the photovoltaic panel changes, the position of the cleaning roller brush (12) can be adjusted according to the straight line distance between the connecting frame (1) and the photovoltaic panel, until the cleaning roller brush (12) contacts the photovoltaic panel.

2. The adaptive photovoltaic cleaning robot of claim 1, wherein: The synchronous adjusting unit comprises a traction arm (7) connected with the support arm (8) through a rotating shaft, a sliding seat (6) installed on the traction arm (7) away from the support arm (8) through a rotating shaft, and the connecting frame (1) is provided with a synchronous driving structure matched with the sliding seat (6), when the pair of sliding seats (6) and the traction arm (7) move synchronously in opposite directions, the distribution angle of the support arm (8) changes.

3. The self-adapting photovoltaic cleaning robot according to claim 2, characterized in that: The synchronous driving structure comprises a first threaded rod (4) and a second threaded rod (5) installed on both sides of the connecting frame (1), a pair of sliding seats (6) are installed on the first threaded rod (4) and the second threaded rod (5) respectively, the thread distribution directions of the first threaded rod (4) and the second threaded rod (5) are opposite, when the first threaded rod (4) and the second threaded rod (5) rotate synchronously, the pair of sliding seats (6) move synchronously in opposite directions.

4. The self-adapting photovoltaic cleaning robot according to claim 3, characterized in that: The synchronous driving structure further comprises a driving motor (41) arranged in the connecting frame (1), the output end of the driving motor (41) is connected with the first threaded rod (4), the first threaded rod (4) is provided with a first driving gear (42) coaxially arranged thereon, a first driven gear (43) engaged with the first driving gear (42) is arranged below the first driving gear (42), the first driven gear (43) is connected with a second driven gear (45) through a linkage rod (44), the linkage rod (44) is arranged on the connecting frame (1), the second driven gear (45) is engaged with a second driving gear (46) arranged in parallel with the first driving gear (42) above the second driven gear (45), and the second driving gear (46) is installed on the second threaded rod (5) and coaxially arranged with the second threaded rod (5).

5. The self-adapting photovoltaic cleaning robot according to claim 4, characterized in that: Both sides of the connecting frame (1) are provided with a docking frame (2), and the ends of the first threaded rod (4) and the second threaded rod (5) away from the connecting frame (1) are arranged on the docking frame (2).

6. The self-adapting photovoltaic cleaning robot according to claim 5, characterized in that: The connecting frame (1) is connected with the docking frame (2) through a limiting rod (3), and the limiting rod (3) penetrates through the sliding seat (6).

7. The adaptive photovoltaic cleaning robot of claim 1, wherein: The cleaning roller brush (12) is provided with a lifting seat (11) which can move synchronously with the cleaning roller brush (12), the support frame (10) is provided with a pneumatic cylinder (13), and the push rod at the output end of the pneumatic cylinder (13) is connected with the lifting seat (11).

8. The self-adapting photovoltaic cleaning robot according to claim 7, characterized in that: The lifting seat (11) is provided with a guide rod (14) vertically distributed thereon, and the support frame (10) is provided with a channel through which the guide rod (14) can pass, and when the lifting seat (11) moves, the guide rod (14) synchronously slides in the channel.

9. The adaptive photovoltaic cleaning robot of claim 1, wherein: The middle axis position of the cleaning roller brush (12) is provided with a driving motor two (121) capable of driving the cleaning roller brush (12) to rotate, and the driving motor two (121) is arranged on the outer side of the lifting seat (11).

10. The adaptive photovoltaic cleaning robot of claim 1, wherein: The interval of the rollers (9) is always less than the length of the cleaning roller brush (12).

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