A photovoltaic panel self-cleaning system
Patent Information
- Application Number
- CN202522354482.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-06
AI Technical Summary
[0003]半导体厂房一般具有较广阔的顶楼空间，现有空间内铺设光伏面板能给厂房带来可观的节电效益，但灰尘沉积会导致光伏面板发电效能下降，甚至引发面板着火等安全问题
本实用新型的光伏面板自清洁系统，可通过控制中心控制自来水管路对光伏面板表面喷淋，清洁机构对光伏面板表面的脏污去除，安全且效率高。具体地，当有浮沉在光伏面板的表面聚集后，可以通过借助自来水管路的喷头对光伏面板表面的灰尘喷离或粘连，而后，通过清洁机构中的清洁辊对污水扫离，并保持光伏面板的表面干燥，其仅需控制中心对电磁开关阀和伺服电机两处进行控制即可，成本交底且能降低人工屋顶作业的危险性，具有较高的清洁效率。
Smart Images
Figure CN224843678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a photovoltaic system, and more particularly to a self-cleaning system for photovoltaic panels. Background Technology
[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.
[0003] Semiconductor factories typically have a large rooftop space. Installing photovoltaic panels in the existing space can bring considerable energy-saving benefits to the factory. However, dust accumulation can reduce the power generation efficiency of the photovoltaic panels and even cause safety issues such as panel fires.
[0004] Existing methods for cleaning photovoltaic panels mainly rely on rainwater washing, manual water gun rinsing, and robot cleaning. These methods suffer from poor cleanliness, low efficiency, and high costs. In some cases, there are also safety issues related to inadequate protection when workers clean photovoltaic panels on rooftops.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content
[0006] The purpose of this invention is to provide a self-cleaning system for photovoltaic panels, which can control the water supply to spray onto the surface of the photovoltaic panel through a control center, and the cleaning mechanism removes dirt from the surface of the photovoltaic panel in a safe and efficient manner.
[0007] To achieve the above objectives, this utility model discloses a photovoltaic panel self-cleaning system for cleaning photovoltaic panels, wherein the photovoltaic panel includes a first end and a second end disposed opposite to each other, and the photovoltaic panel self-cleaning system includes: The control center is connected to both the storage battery and the photovoltaic panel. The water supply pipeline, at least a portion of which extends along the direction from the first end to the second end of the photovoltaic panel, has multiple nozzles arranged at intervals on the side of the water supply pipeline facing the photovoltaic panel, and an electromagnetic switch valve is provided at the input end of the water supply pipeline, which is electrically connected to the control center. The cleaning mechanism includes a servo motor, a drive shaft, drive gears, a belt, and a cleaning roller. The servo motor is mounted on the photovoltaic panel and electrically connected to the control center. The output shaft of the servo motor is connected to the drive shaft. The drive gears are sleeved on the output shaft. The belt is sleeved on the drive gears. One end of the cleaning roller is fixedly connected to the belt. The body of the cleaning roller is attached to the photovoltaic panel.
[0008] As a further description of the above technical solution, the photovoltaic panel self-cleaning system also includes a sensor, the output end of which is disposed facing the surface of the photovoltaic panel, and the sensor is electrically connected to the control center.
[0009] As a further description of the above technical solution, the sensors are configured as a plurality of sensors arranged at intervals from the first end of the photovoltaic panel to the second end of the photovoltaic panel.
[0010] As a further description of the above technical solution, the sensor is configured as a blue light SR sensor that emits an LED light source with a wavelength of 450-470nm toward the surface of the photovoltaic panel.
[0011] As a further description of the above technical solution, the tap water pipeline includes a main tap water line, a first branch line, and a second branch line. One end of the main tap water line is connected to the electromagnetic switch valve, and the second end of the main tap water line is connected to the first branch line and the second branch line respectively. The first branch line and the second branch line are respectively arranged on two opposite sides of the photovoltaic panel from the first end to the second end on the side away from the main tap water line.
[0012] As a further description of the above technical solution, the cleaning roller covers at least the entire photovoltaic panel in a direction perpendicular to the first end to the second end.
[0013] As a further description of the above technical solution, the control center includes a maximum power point tracker and a boost / buck module. The photovoltaic panel is connected to the battery through the maximum power point tracker, and the battery is connected to the servo motor through the boost / buck module.
[0014] Based on the above technical solution, the beneficial effects of this utility model are as follows: This utility model discloses a photovoltaic panel self-cleaning system. The system allows for centralized control of a water supply pipeline to spray water onto the photovoltaic panel surface, while a cleaning mechanism removes dirt and grime. It is safe and highly efficient. Specifically, when dust accumulates on the photovoltaic panel surface, it can be sprayed away or removed by the water supply nozzles. Then, the cleaning mechanism uses cleaning rollers to sweep away wastewater, keeping the panel surface dry. The system requires only control of an electromagnetic valve and a servo motor from the control center, resulting in low costs, reduced risks associated with manual rooftop work, and high cleaning efficiency.
[0015] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a photovoltaic panel self-cleaning system provided in the embodiments of this specification; Figure 2 This is a schematic diagram of the control center of a photovoltaic panel self-cleaning system provided in the embodiments of this specification; Figure 3 This is a three-dimensional schematic diagram of a photovoltaic panel self-cleaning system provided in the embodiments of this specification; In the picture: 100. Photovoltaic panels; 200. Storage batteries; 300. Plant load; 1. Control Center; 11. Maximum Power Point Tracker; 12. Boost / Buck Module; 13. Servo Driver; 14. PLC; 2. Water supply pipeline; 21. Sprinkler head; 22. Solenoid valve; 23. Main water line; 24. First branch line; 25. Second branch line; 3. Cleaning mechanism; 31. Servo motor; 32. Drive shaft; 33. Drive gear; 34. Belt; 35. Cleaning roller; 4. Sensors. Detailed Implementation
[0018] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.
[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.
[0020] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.
[0021] Please see Figure 1-3 This embodiment provides a photovoltaic panel self-cleaning system for cleaning a photovoltaic panel 100. The photovoltaic panel 100 includes a first end and a second end disposed opposite to each other. The photovoltaic panel 100 self-cleaning system includes: Control center 1 is connected to battery 200 and photovoltaic panel 100 respectively; Water supply pipe 2, at least a portion of which extends along the direction from the first end to the second end of the photovoltaic panel 100, has a plurality of nozzles 21 arranged at intervals on the side of the water supply pipe 2 facing the photovoltaic panel 100, and an electromagnetic switch valve 22 is provided at the input end of the water supply pipe 2, which is electrically connected to the control center 1. The cleaning mechanism 3 includes a servo motor 31, a drive shaft 32, a drive gear 33, a belt 34, and a cleaning roller 35. The servo motor 31 is mounted on the photovoltaic panel 100 and is electrically connected to the control center 1. The output shaft of the servo motor 31 is connected to the drive shaft 32. The drive gear 33 is sleeved on the output shaft. The belt 34 is sleeved on the drive gear 33. One end of the cleaning roller 35 is fixedly connected to the belt 34. The body of the cleaning roller 35 is attached to the photovoltaic panel 100.
[0022] Based on the above-mentioned system of this utility model, during the use of the photovoltaic panel 100, dust and other dirt accumulate on the surface of the photovoltaic panel 100. The control center 1 activates the electromagnetic switch valve 22 in the tap water pipeline 2, so that the water upstream of the electromagnetic switch valve 22 flows into the tap water pipeline 2 downstream. At the nozzle 21 downstream of the tap water pipeline 2, high-pressure water is sprayed from the nozzle 21 onto the surface of the photovoltaic panel 100, so that the dust on the surface of the photovoltaic panel 100 is cleaned or dissolved by the water flow.
[0023] Synchronously, or subsequently, the control center 1 starts the servo motor 31 of the cleaning mechanism 3. The output end of the servo motor 31 drives the transmission shaft 32 to rotate, causing the transmission gear 33 to drive the belt 34 to move along the direction from the first end to the second end of the photovoltaic panel 100. Specifically, the belt 34 is provided with tooth grooves or racks that match the transmission gear 33. Specifically, since the cleaning roller 35 is installed on the belt 34 and adheres to the photovoltaic panel 100, the wastewater on the photovoltaic panel 100 can be swept away during the movement of the photovoltaic panel 100, so that its surface is dried.
[0024] In the above embodiment, the cleaning roller 35 is configured to cover at least the entire photovoltaic panel 100 along a direction perpendicular to the first end to the second end. Therefore, when the cleaning roller 35 moves from the first end to the second end of the photovoltaic panel 100, it can sweep across and cover the entire photovoltaic panel 100. The cleaning roller 35 can rotate under resistance during movement to maintain cleanliness.
[0025] In the above-described solution of this utility model, the water supply pipe 2 can be controlled by the control center 1 to spray water onto the surface of the photovoltaic panel 100, and the cleaning mechanism 3 can remove dirt from the surface of the photovoltaic panel 100, which is safe and highly efficient. Specifically, when dust accumulates on the surface of the photovoltaic panel 100, the dust can be sprayed away or removed by the nozzle 21 of the water supply pipe 2. Then, the cleaning roller 35 in the cleaning mechanism 3 sweeps away the wastewater and keeps the surface of the photovoltaic panel 100 dry. This only requires the control center 1 to control the electromagnetic switch valve 22 and the servo motor 31, which is cost-effective and reduces the danger of manual rooftop work, and has high cleaning efficiency.
[0026] Furthermore, the self-cleaning system of the photovoltaic panel 100 also includes a sensor 4, the output end of which is positioned facing the surface of the photovoltaic panel 100, and the sensor 4 is electrically connected to the control center 1. The sensor 4 is configured as a plurality of sensors arranged at intervals from the first end to the second end of the photovoltaic panel 100. The sensor 4 is configured as a blue light SR sensor 4 emitting an LED light source with a wavelength of 450-470nm towards the surface of the photovoltaic panel 100. Its specific operating principle is as follows: the sensor 4 is always on, identifying the surface of the photovoltaic panel 100 and promptly reporting the dust accumulation to the control center 1. After analysis by the PLC 14 (processing unit) of the control center 1, the PLC 14 sends a command to the connected servo driver 13. The servo driver 13 drives the servo motor 31 to stop, rotate forward, or rotate in reverse, which can drive the cleaning roller 35 for cleaning operations. Simultaneously, the PLC 14 sends a command to the connected electromagnetic switch valve 22, which opens or closes, realizing surface spraying operations when there is water pressure in the tap water pipe 2.
[0027] Furthermore, the control center 1 includes a maximum power point tracker 11 and a boost / buck module 12. The photovoltaic panel 100 is connected to the battery 200 via the maximum power point tracker 11, and the battery 200 is connected to the servo motor 31 via the boost / buck module 12. The main function of the maximum power point tracker 11 is to optimize the operating point of the photovoltaic panel 100, enabling it to output maximum power and allowing the connected battery 200 to store electricity normally. The plant load 300 is directly connected to the photovoltaic panel 100 and obtains corresponding power. The purpose of the boost / buck module 12 is to adjust the voltage to ensure that the PLC 14 and the servo driver 13 of the servo system receive a stable power supply.
[0028] The water supply pipeline 2 includes a main water supply line 23, a first branch line 24, and a second branch line 25. One end of the main water supply line 23 is connected to the electromagnetic switch valve 22, and the second end of the main water supply line 23 is connected to both the first branch line 24 and the second branch line 25. The first branch line 24 and the second branch line 25 are respectively located on opposite sides of the photovoltaic panel 100 from the first end to the second end, on the side away from the main water supply line 23. The branching design of the first branch line 24 and the second branch line 25 allows the upper and lower sides of the photovoltaic panel 100 to be covered with spray water, resulting in better and more uniform spraying efficiency.
[0029] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.
[0030] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0031] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.
Claims
1. A photovoltaic panel self-cleaning system for cleaning photovoltaic panels, wherein, The photovoltaic panel includes a first end and a second end disposed opposite to each other, characterized in that the photovoltaic panel self-cleaning system includes: The control center is connected to both the storage battery and the photovoltaic panel. The water supply pipeline, at least a portion of which extends along the direction from the first end to the second end of the photovoltaic panel, has multiple nozzles arranged at intervals on the side of the water supply pipeline facing the photovoltaic panel, and an electromagnetic switch valve is provided at the input end of the water supply pipeline, which is electrically connected to the control center. The cleaning mechanism includes a servo motor, a drive shaft, drive gears, a belt, and a cleaning roller. The servo motor is mounted on the photovoltaic panel and electrically connected to the control center. The output shaft of the servo motor is connected to the drive shaft. The drive gears are sleeved on the output shaft. The belt is sleeved on the drive gears. One end of the cleaning roller is fixedly connected to the belt. The body of the cleaning roller is attached to the photovoltaic panel.
2. The photovoltaic panel self-cleaning system according to claim 1, characterized in that: The photovoltaic panel self-cleaning system also includes a sensor, the output end of which is disposed facing the surface of the photovoltaic panel, and the sensor is electrically connected to the control center.
3. The photovoltaic panel self-cleaning system according to claim 2, characterized in that: The sensors are arranged in a plurality of spaced intervals from the first end of the photovoltaic panel to the second end of the photovoltaic panel.
4. The photovoltaic panel self-cleaning system according to claim 2, characterized in that: The sensor is configured as a blue light SR sensor that emits an LED light source with a wavelength of 450-470nm toward the surface of the photovoltaic panel.
5. The photovoltaic panel self-cleaning system according to claim 1, characterized in that: The water supply pipeline includes a main water supply line, a first branch line, and a second branch line. One end of the main water supply line is connected to the electromagnetic switch valve, and the second end of the main water supply line is connected to the first branch line and the second branch line respectively. The first branch line and the second branch line are respectively arranged on two opposite sides of the photovoltaic panel from the first end to the second end on the side away from the main water supply line.
6. The photovoltaic panel self-cleaning system according to claim 1, characterized in that: The cleaning roller covers at least the entire photovoltaic panel arrangement in a direction perpendicular to the first end to the second end.
7. The photovoltaic panel self-cleaning system according to claim 1, characterized in that: The control center includes a maximum power point tracker and a boost / buck module. The photovoltaic panel is connected to the battery through the maximum power point tracker, and the battery is connected to the servo motor through the boost / buck module.