A self-water-supply photovoltaic cleaning robot
By combining a self-watering photovoltaic cleaning robot with water spraying and cleaning components, the problem of sticky dirt on photovoltaic panels that is difficult to remove has been solved, significantly improving cleaning efficiency and power generation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENYUAN NEW ENERGY TECH (WUHAN) CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-16
AI Technical Summary
Existing photovoltaic panel cleaning robots are unable to effectively remove sticky dirt during cleaning, resulting in low cleaning quality and affecting the power generation efficiency of photovoltaic panels.
A self-watering photovoltaic cleaning robot was designed, which combines a water spraying component and a cleaning component. The water spraying component first wets the surface of the photovoltaic panel to soften stubborn dirt, and then the cleaning component removes it, thereby improving the cleaning effect.
It significantly improves the ability to remove stubborn dirt, thereby enhancing the cleaning quality and power generation efficiency of photovoltaic panels.
Smart Images

Figure CN224367780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic panel cleaning technology, and in particular to a self-watering photovoltaic cleaning robot. Background Technology
[0002] With the continuous development of technology, the photovoltaic industry has made significant progress. As a clean energy source, photovoltaic power generation is being used more and more widely, occupying an increasingly important position in the global energy structure. The scale of photovoltaic power plants is constantly expanding; both large-scale ground-mounted power plants and distributed rooftop power plants are making significant contributions to sustainable development. However, over long-term use, photovoltaic panels accumulate dust, dirt, and other impurities, which can seriously affect their power generation efficiency, reduce power output, and thus increase power generation costs. Therefore, the cleaning and maintenance of photovoltaic panels has become a crucial aspect of the photovoltaic industry, and to improve cleaning efficiency, photovoltaic panel cleaning robots are often used to clean the panels.
[0003] However, existing photovoltaic panel cleaning robots often simply clean the photovoltaic panels by rotating sponge rollers without wetting them. As a result, the dirt stuck to the photovoltaic panels cannot be removed by the rotation of the sponge rollers, leading to low cleaning quality and affecting the use of the photovoltaic panels. Utility Model Content
[0004] (I) Purpose of the utility model
[0005] To address the technical problems existing in the background art, this utility model proposes a self-watering photovoltaic cleaning robot. By setting up a water spraying component and a cleaning component in combination, it solves the problem of difficult removal of sticky dirt from photovoltaic panels in the prior art. The water spraying component can pre-wet the surface of the photovoltaic panel to soften the stubborn dirt, which is then effectively removed by the cleaning component. Compared with the prior art that only uses the cleaning component, this device significantly improves the cleaning effect, especially for dirt with strong adhesion.
[0006] (II) Technical Solution
[0007] This utility model provides a self-watering photovoltaic cleaning robot, including two mounting plates spaced apart. Each end of the two mounting plates is connected to a mounting box. A cleaning component, parallel to the mounting plates, is located between the mounting boxes. A water spraying component is also located between the two mounting plates and connected to the mounting boxes. A water tank for supplying water to the water spraying component is located at the upper end of each mounting plate. A positioning component is located on each mounting box, and a moving component is located between the two mounting boxes.
[0008] Preferably, the cleaning assembly includes a cleaning roller, which is horizontally disposed between the two mounting plates. Both ends of the cleaning roller are rotatably connected to the two mounting boxes, and a first motor for driving the cleaning roller to rotate is provided inside the mounting box.
[0009] Preferably, the moving component includes rollers, a fixing plate is provided between the two mounting plates, rollers are rotatably provided on the end faces of the two mounting boxes that are close to each other and on the end faces of the fixing plate facing the two mounting boxes, and the multiple rollers are connected by a connecting unit, and a second motor for driving the rollers to rotate is provided in one of the mounting boxes.
[0010] Preferably, it further includes a mounting shaft, and the mounting box and the fixing plate are all rotatably connected to the roller through the mounting shaft. The mounting shaft passes through the roller and is coaxially connected to it. One of the mounting boxes is provided with a first through hole, and the mounting shaft passes through the first through hole and is coaxially connected to the output shaft of the second motor.
[0011] Preferably, the connecting unit includes a connecting shaft, which is horizontally disposed between the fixing plate and the mounting box. The two ends of the connecting shaft are respectively connected to the mounting shafts located at its two ends by universal joints. The fixing plate is provided with a second through hole, and the two mounting shafts located at both ends of the fixing plate are connected by a coupling, which is located in the second through hole.
[0012] Preferably, the water spraying assembly includes a water pipe horizontally positioned between the two mounting plates. Both ends of the water pipe are connected to the two mounting boxes respectively. The end of the water pipe away from the water tank has multiple water outlets arranged side by side. Each water outlet is equipped with a spray nozzle. The water pipe has a water inlet, and the water tank has a water outlet. A solenoid valve is located at the water outlet, and a connecting pipe is provided between the water inlet and the water outlet.
[0013] Preferably, the positioning component includes two limiting wheels, and the bottom end of the mounting box is rotatably provided with the limiting wheels. There is a gap between the limiting wheels located on the two mounting boxes for the photovoltaic panel to pass through, and the limiting wheels slide in contact with the outer end of the photovoltaic panel.
[0014] Preferably, the upper end of the mounting plate is provided with a cover plate, the two ends of the cover plate are connected to the two mounting boxes, the cover plate is provided with a first opening, the first opening is provided with a solar panel, and the cover plate is provided with a second opening for the installation of the water tank.
[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0016] In this invention, by combining a water spraying component and a cleaning component, the problem of difficult removal of sticky dirt from photovoltaic panels in the prior art is solved. The water spraying component can pre-wet the surface of the photovoltaic panel to soften the stubborn dirt, which is then effectively removed by the cleaning component. Compared with the prior art that uses only the cleaning component, this device significantly improves the cleaning effect, especially for dirt with strong adhesion. Attached Figure Description
[0017] Figure 1 This is a top-view structural diagram of a self-watering photovoltaic cleaning robot proposed in this utility model.
[0018] Figure 2 This is a structural schematic diagram of a self-watering photovoltaic cleaning robot proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting box in a self-watering photovoltaic cleaning robot proposed in this utility model.
[0020] Figure 4 This is a partially enlarged structural diagram of point A in a self-watering photovoltaic cleaning robot proposed in this utility model.
[0021] Reference numerals: 1. Mounting plate; 2. Mounting box; 3. Fixing plate; 4. Connecting shaft; 5. Cleaning roller; 6. First motor; 7. Second motor; 8. Mounting shaft; 9. Roller; 10. Universal joint; 11. Water tank; 12. Water pipe; 13. Nozzle; 14. Limiting wheel; 15. Cover plate; 16. Solar panel. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figure 1-4 As shown, this utility model proposes a self-watering photovoltaic cleaning robot, comprising two spaced-apart mounting plates 1, each end of which is connected to a mounting box 2. A cleaning component, parallel to the mounting plates 1, is located between the two mounting plates 1. A water spraying component is located between the two mounting plates 1 and connected to the mounting box 2. A water tank 11 for supplying water to the water spraying component is located at the upper end of the mounting plate 1. A positioning component is provided on the mounting box 2, and a moving component is provided between the two mounting boxes 2.
[0026] Mounting plate 1 can be made of metal or high-strength plastic, and its spacing can be adjusted according to the width of the photovoltaic panel.
[0027] This device solves the problem of difficult removal of sticky dirt from photovoltaic panels in existing technologies by using a combination of a water spraying component and a cleaning component. The water spraying component pre-wets the surface of the photovoltaic panel, softening stubborn dirt, which is then effectively removed by the cleaning component. Compared with existing technologies that use only the cleaning component, this device significantly improves the cleaning effect, especially for highly adhesive dirt. The structural design of the mounting plate 1 and mounting box 2 ensures the stability of the device. The independent setting of the water tank 11 ensures a continuous water supply during the cleaning process, avoiding the problem of frequent water filling. Furthermore, the positioning and moving components ensure that the device moves stably on the photovoltaic panel, thereby improving the stability of the device during movement and further enhancing the cleaning quality.
[0028] Furthermore, this application also proposes that the cleaning assembly includes a cleaning roller 5, which is horizontally disposed between two mounting plates 1. Both ends of the cleaning roller 5 are rotatably connected to two mounting boxes 2 respectively. The mounting boxes 2 are provided with a first motor 6 for driving the cleaning roller 5 to rotate.
[0029] The cleaning roller 5 can be made of rubber or sponge material, and its surface can be set with concave and convex textures to enhance the cleaning effect. This technical solution achieves mechanical cleaning of the photovoltaic panel surface through the rotating cleaning roller 5 driven by a motor. When the equipment moves along the photovoltaic panel, the cleaning roller 5 rotates at high speed under the drive of the motor, generating friction with the surface of the photovoltaic panel, thereby effectively removing dust and dirt attached to the surface.
[0030] Furthermore, this application also proposes a specific embodiment of the moving component. The moving component includes rollers 9, a fixing plate 3 is provided between two mounting plates 1, and rollers 9 are rotatably provided on the end faces of the two mounting boxes 2 that are close to each other and on the end faces of the fixing plate 3 facing the two mounting boxes 2. The multiple rollers 9 are connected by a connecting unit. A second motor 7 for driving the rollers 9 to rotate is provided in one of the mounting boxes 2. A position sensor and a controller are provided at the bottom of the mounting box 2. The position sensor and the controller are electrically connected, and the second motor 7 is electrically connected to the controller. Thus, the walking area of the device can be effectively controlled by the position sensor.
[0031] The moving component achieves smooth movement of the cleaning equipment on the photovoltaic panel surface through a multi-roller 9 synchronous drive design. The setting of the fixing plate 3 enhances the rigidity of the overall structure and prevents the mounting plate 1 from deforming during movement. The connecting unit ensures that the multiple rollers 9 can rotate synchronously, preventing equipment deviation caused by differences in rotation speed.
[0032] Furthermore, this application also proposes a specific connection structure for the mounting shaft 8. The mounting box 2 and the fixing plate 3 are all rotatably connected to the roller 9 through the mounting shaft 8. The mounting shaft 8 passes through the roller 9 and is coaxially connected to it. One of the mounting boxes 2 is provided with a first through hole. The mounting shaft 8 passes through the first through hole and is coaxially connected to the output shaft of the second motor 7.
[0033] This technical solution solves the problems of low transmission efficiency and structural instability in the traditional roller 9 drive system by optimizing the connection structure of the mounting shaft 8.
[0034] Furthermore, this application also proposes a specific structure for the connecting unit. The connecting shaft 4 is horizontally positioned between the fixed plate 3 and the mounting box 2, and both ends of the connecting shaft 4 are connected to the mounting shafts 8 located at its ends via universal joints 10. The fixed plate 3 has a second through hole, and the two mounting shafts 8 located at both ends of the fixed plate 3 are connected by a coupling, which is located within the second through hole.
[0035] Specifically, the length of the connecting shaft 4, as a transmission component, can be adjusted according to the actual installation spacing. The universal joint 10 adopts a cross-shaped structure, allowing for a certain degree of transmission deviation.
[0036] This technical solution achieves synchronous transmission between multiple rollers 9 through the combined use of connecting shaft 4, universal joint 10, and coupling. Universal joint 10 solves the transmission angle problem caused by installation position deviation and offsets the roller 9 offset caused by uneven photovoltaic panel. Coupling ensures stability during transmission.
[0037] Furthermore, this application also proposes a specific embodiment of the sprinkler assembly, which includes a water pipe 12 horizontally disposed between two mounting plates 1. Both ends of the water pipe 12 are connected to two mounting boxes 2 respectively. Multiple water outlets are arranged side-by-side at the end of the water pipe 12 furthest from the water tank 11, and nozzles 13 are installed at the water outlets. The water pipe 12 has an inlet, and the water tank 11 has a drain outlet. A solenoid valve is installed at the drain outlet, and the inlet and drain outlet are connected by a connecting pipe.
[0038] The water spraying assembly, through the coordinated arrangement of water pipe 12 and nozzle 13, can evenly wet the surface of the photovoltaic panel during the cleaning process. When the cleaning roller 5 is working, the solenoid valve opens, and the cleaning water in the water tank 11 enters the water pipe 12 through the connecting pipe and is sprayed onto the surface of the photovoltaic panel by the nozzle 13. As a result, stubborn stains on the surface of the photovoltaic panel are more easily removed by the cleaning roller 5 in a wet state, thus improving the cleaning effect.
[0039] Furthermore, this application also proposes that the positioning component includes two limiting wheels 14, the bottom end of the mounting box 2 is rotatably provided with limiting wheels 14, and there is a gap between the limiting wheels 14 located on the two mounting boxes 2 for the photovoltaic panel to pass through, and the limiting wheels 14 slide in contact with the outer end of the photovoltaic panel.
[0040] Therefore, this technical solution achieves precise positioning and guidance of the photovoltaic panel during the movement of the cleaning equipment through the symmetrically arranged limiting wheel 14 structure. The continuous contact and sliding between the limiting wheel 14 and the edge of the photovoltaic panel can prevent the equipment from deviating and avoid scratching the surface of the photovoltaic panel.
[0041] Furthermore, this application also proposes that the upper end of the mounting plate 1 is provided with a cover plate 15, the two ends of the cover plate 15 are connected to two mounting boxes 2, the cover plate 15 is provided with a first opening, the first opening is provided with a solar panel 16, and the cover plate 15 is provided with a second opening for installing a water supply tank 11.
[0042] This technical solution achieves rational utilization of the top space of the equipment by setting an integrated cover plate 15 structure above the mounting plate 1. The solar panel 16 can provide auxiliary power supply for the cleaning equipment, reducing dependence on external power sources.
[0043] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A self-supplied water photovoltaic cleaning robot, characterized in that, The device includes two mounting plates spaced apart. Each end of the mounting plates is connected to a mounting box. A cleaning component, parallel to the mounting plates, is located between the mounting boxes. A water spraying component is also located between the two mounting plates and connected to the mounting boxes. A water tank for supplying water to the water spraying component is located at the upper end of each mounting plate. A positioning component is located on each mounting box. A moving component is located between the two mounting boxes.
2. The self-watering photovoltaic cleaning robot according to claim 1, characterized in that, The cleaning assembly includes a cleaning roller, which is horizontally positioned between the two mounting plates. Both ends of the cleaning roller are rotatably connected to the two mounting boxes, and a first motor for driving the cleaning roller to rotate is provided inside the mounting box.
3. The self-watering photovoltaic cleaning robot according to claim 1, characterized in that, The moving component includes rollers, a fixed plate is provided between the two mounting plates, rollers are rotatably provided on the end faces of the two mounting boxes that are close to each other and on the end faces of the fixed plate facing the two mounting boxes, and the multiple rollers are connected by a connecting unit, and a second motor for driving the rollers to rotate is provided in one of the mounting boxes.
4. The self-watering photovoltaic cleaning robot according to claim 3, characterized in that, It also includes a mounting shaft, and the mounting box and the fixing plate are rotatably connected to the roller through the mounting shaft. The mounting shaft passes through the roller and is coaxially connected to it. One of the mounting boxes is provided with a first through hole, and the mounting shaft passes through the first through hole and is coaxially connected to the output shaft of the second motor.
5. A self-watering photovoltaic cleaning robot according to claim 4, characterized in that, The connecting unit includes a connecting shaft, which is horizontally disposed between the fixing plate and the mounting box. The two ends of the connecting shaft are respectively connected to the mounting shafts located at its two ends by universal joints. The fixing plate is provided with a second through hole, and the two mounting shafts located at both ends of the fixing plate are connected by a coupling, which is located in the second through hole.
6. The self-watering photovoltaic cleaning robot according to claim 1, characterized in that, The water spraying assembly includes a water pipe horizontally positioned between two mounting plates. Both ends of the water pipe are connected to two mounting boxes. Multiple water outlets are arranged side-by-side at the end of the water pipe away from the water tank. A nozzle is provided at each water outlet. A water inlet is provided on the water pipe. A drain outlet is provided on the water tank. A solenoid valve is provided at the drain outlet. A connecting pipe is provided between the water inlet and the drain outlet.
7. A self-watering photovoltaic cleaning robot according to claim 1, characterized in that, The positioning component includes two limiting wheels. The bottom end of the mounting box is rotatably provided with the limiting wheels. There is a gap between the limiting wheels located on the two mounting boxes for the photovoltaic panel to pass through. The limiting wheels slide in contact with the outer end of the photovoltaic panel.
8. A self-watering photovoltaic cleaning robot according to claim 1, characterized in that, The mounting plate has a cover plate at its upper end, and the two ends of the cover plate are connected to the two mounting boxes. The cover plate has a first opening, in which a solar panel is installed. The cover plate also has a second opening for installing the water tank.