A device for cleaning photovoltaic modules in rainy weather

Abstract

This utility model discloses a device for cleaning photovoltaic modules in rainy weather, including a maintenance base and a cleaning robot. The maintenance base is installed on one side of the photovoltaic module, and the cleaning robot has mounting seats at both ends of its body. Each mounting seat has wheels that engage with the upper or lower end of the photovoltaic module. A cleaning brush is located on the lower side of the robot body. A rain gauge is located on the upper side of the maintenance base or the cleaning robot. The maintenance base houses the cleaning robot. The rain gauge detects rainy weather and rainfall levels. When it rains or the rainfall exceeds a preset value, the cleaning robot cleans and removes dirt from the photovoltaic module, preventing dust accumulation on the upper side of the module. Utilizing rainwater reduces water consumption and improves cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to a device for cleaning photovoltaic modules in rainy weather. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at semiconductor interfaces. It mainly consists of three parts: solar panels, controllers, and inverters. Solar panels, often simply called photovoltaic panels, accumulate dust on their outer surfaces under long-term outdoor use, affecting the solar energy absorption rate and reducing solar power generation efficiency. Therefore, regular cleaning or rinsing of the photovoltaic panel surface is necessary.

[0003] Currently, most photovoltaic (PV) modules are cleaned manually using tools such as rags and mops, which is time-consuming, labor-intensive, and inefficient. CN219124162U discloses a PV module dust cleaning device, in which multiple sprayers are arranged around the perimeter of the PV module, each sprayer connected to a water pump and an air pump, with the water pump housed in a water tank. Two track grooves are located on either side of the PV module, each containing a slider, which is driven by a first motor to reciprocate synchronously. The cleaning components are fixed at both ends to the sliders in the two track grooves. Existing cleaning or decontamination devices typically perform periodic decontamination operations on PV modules, requiring a large supply of additional cleaning water during the process. On rainy days, a large amount of rain falls on the PV modules, but the impact force of the rain itself is usually insufficient to remove dirt from the surface. Therefore, a device is needed to utilize rainwater for decontamination of PV modules, making full use of the rainwater. Utility Model Content

[0004] To address the aforementioned technical problems in the existing technology, this utility model provides a rain-fighting photovoltaic module cleaning device that utilizes rainwater to clean the photovoltaic modules, thereby saving water resources.

[0005] This utility model discloses a device for cleaning photovoltaic modules in rainy weather, including a maintenance seat and a cleaning robot. The maintenance seat is installed on one side of the photovoltaic module, and the cleaning robot has mounting seats at both ends of its body. The mounting seats are equipped with driving wheels, which cooperate with the upper or lower end of the photovoltaic module. A cleaning brush is provided on the lower side of the body. A rain gauge is provided on the upper side of the maintenance seat or the cleaning robot.

[0006] Preferably, a first groove is provided at the upper end of the maintenance base, and the rain gauge is installed in the first groove; a drainage hole is provided on one side of the first groove.

[0007] Preferably, a first wireless module and a second wireless module are respectively installed inside the body and the maintenance base; The first main control module inside the machine is connected to the second wireless module; The second main control module inside the maintenance unit is connected to the first wireless module and the rain gauge.

[0008] Preferably, the maintenance seat has a receiving cavity on one side that mates with the machine body, and a first socket and a water supply plug are provided on the side wall of the receiving cavity. The first socket mates with a first plug on one side of the machine body, and the water supply plug mates with a second plug on one side of the machine body.

[0009] Preferably, the side wall of the maintenance seat and the side wall of the machine body are respectively provided with a matching proximity switch and a detection element.

[0010] Preferably, the second main control module is connected to the control terminals of the detection device and the water supply valve respectively; the water supply valve is connected to the water supply plug; the second main control module is also connected to the serial port terminal of the first socket; the first main control module is connected to the serial port terminal of the first socket; the power terminal of the first socket is connected to the battery assembly; and the battery assembly is connected to the main control module.

[0011] Preferably, the first main control module is connected to the control terminals of the first motor and the second motor; the output terminal of the first motor is connected to the driving wheel. The output end of the second motor is connected to the cleaning roller; the cleaning brush is installed on the cleaning roller.

[0012] Preferably, a nozzle array is provided on the lower side of the machine body; the output end of the water supply valve is connected to the water tank; the output end of the water tank is connected to the nozzle array via a water pump.

[0013] Preferably, guide rollers are provided on the front and rear sides of the cleaning brush, and at least two second guide wheels are provided on the guide rollers at intervals.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the maintenance base is used to house the cleaning robot, and the rain gauge detects the rainy day and rainfall. When it rains or the rainfall exceeds the preset value, the cleaning robot cleans and removes dirt from the photovoltaic module, avoiding the accumulation of dust on the photovoltaic module. It also utilizes the water formed by rain to reduce water consumption and improve the cleaning efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the rain-fighting photovoltaic module decontamination device of this utility model; Figure 2 This is a schematic diagram illustrating the interaction between a cleaning robot and a photovoltaic panel; Figure 3 This is a schematic diagram of the mounting cavity for the cleaning robot; Figure 4 This is a schematic diagram of the installation of the second photovoltaic panel; Figure 5This is a diagram showing the installation of the cleaning brush; Figure 6 This is a logic block diagram of the rain-fighting photovoltaic module decontamination device of this utility model.

[0016] The diagram shows: 1. Photovoltaic module cleaning device for rainy days; 2. Photovoltaic module; 21. Outer frame; 22. Photovoltaic panel; 3. Maintenance base; 31. First socket; 32. Water supply plug; 33. Receiving cavity; 35. First guide wheel; 36. Detection component; 37. First groove; 38. Drain hole; 39. Rain gauge; 391. Second main control module; 393. First wireless module; 394. Water supply valve. 5. Cleaning robot; 51. Body; 512. Proximity switch; 513. Second guide wheel; 515. Guide roller; 52. Mounting base; 521. Traveling wheel; 522. Driven wheel; 523. Cleaning brush; 525. Cleaning roller; 527. First motor; 529. Second motor; 53. First connector; 54. Battery assembly; 55. First main control module; 56. Nozzle array; 561. Second connector; 562. Water inlet valve; 563. Water tank; 565. Water pump; 566. Second wireless module; 57. Installation cavity; 571. Partition plate; 58. Cover plate; 59. Second photovoltaic panel. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1 provides a rain-weather photovoltaic module cleaning device 1, such as... Figures 1-6 As shown, the device includes a maintenance seat 3 and a cleaning robot 5. The maintenance seat 3 is installed on one side of the photovoltaic module 2. The cleaning robot 5 has mounting seats 52 at both ends of its body 51. The mounting seats 52 are equipped with driving wheels 521, which cooperate with the upper or lower end of the photovoltaic module 2. A cleaning brush 523 is provided on the lower side of the body 51. A rain gauge 39 is provided on the upper side of the maintenance seat 3 or the cleaning robot 5.

[0019] The maintenance stand 3 is used to house the cleaning robot 5. The rain gauge 39 detects rainy days and rainfall. When it rains or the rainfall exceeds a preset value, the cleaning robot 5 cleans and removes dirt from the photovoltaic module 2 to prevent dust from accumulating on the photovoltaic panel. It also utilizes rainwater to reduce water consumption and improve cleaning efficiency.

[0020] Specifically, such as Figure 1 and Figure 2 The upper end of the maintenance base 3 is provided with a first groove 37, and the rain gauge 39 is installed in the first groove 37 to protect the rain gauge 39 and reduce the probability of the rain gauge being hit. A drain hole 38 is provided on one side of the first groove 37.

[0021] like Figure 2 and Figure 3 The maintenance base 3 has a receiving cavity 33 on one side that cooperates with the body 51. The side wall of the receiving cavity 33 is provided with a first socket 31 and a water supply plug 32. The first socket 31 cooperates with the first socket 53 on one side of the body 51; the water supply plug 32 cooperates with the second socket 561 on one side of the body 51.

[0022] The cleaning robot 5 moves along the upper and lower ends of the photovoltaic module 2 and cleans the photovoltaic module 2 with the cleaning brush 523. After the cleaning work is completed, the cleaning robot 5 moves into the receiving cavity 33 of the maintenance seat 3 and charges or transmits data through the first socket 31 and replenishes cleaning water through the water supply plug 32. This facilitates the automated cleaning of the photovoltaic module 2 and reduces human intervention.

[0023] like Figure 3 The housing 51 has a mounting cavity 57, which houses a first motor 527, a second motor 529, a battery module 54, and a first main control module 55. The output of the first motor 527 is connected to the drive shaft of one side of the driving wheel 521, serving as the driving wheel; the other side of the driving wheel 521 serves as the driven wheel 522. More specifically, the photovoltaic module 2 is tilted, with the driving wheel 521 engaging with the upper end of the photovoltaic module as the driving wheel; and the driving wheel 521 engaging with the lower end of the photovoltaic module 2 as the driven wheel 522. However, this is not a limitation; the lower end can also be designed as the driving wheel. Figure 5 Guide rollers 515 are respectively provided on the front and rear sides of the cleaning brush 523, and at least two second guide wheels 513 are provided on the guide rollers 515 at intervals, which facilitates the smooth movement of the machine body 51.

[0024] The output end of the second motor 529 is connected to the cleaning roller 525, and the cleaning brush 523 is mounted on the cleaning roller 525. In one specific embodiment, the second motor 529 drives the cleaning roller 525 by means of gears or a conveyor belt. This driving method is prior art and will not be described in detail here. The battery assembly 54 supplies electrical energy to the relevant components.

[0025] The mounting cavity 57 is also equipped with a water tank 563 and a water pump 565. The second inlet 561 is connected to the input end of the water tank 563 through the water inlet valve 562. The output end of the water tank 563 is connected to the water pump 565. The output end of the water pump 565 is connected to the nozzle array 56.

[0026] like Figure 6 The main body 51 and maintenance base 3 are respectively equipped with a first wireless module 393 and a second wireless module 566. Maintenance base 3 is equipped with a second main control module 391. A water supply valve 394 is connected to a water supply plug 32, and the second main control module 391 is connected to the control terminal of the water supply valve 394. The second main control module 391 is also connected to the serial port of the rain gauge 39, the first wireless module 393, the detection element 36, and the first socket 31. Mains power is connected to the power supply terminal of the first socket 31. The first wireless module 393 and the second wireless module 566 can be WIFI, infrared, LoRa, etc., but are not limited to these.

[0027] The first main control module 55 is connected to the control terminals of the battery assembly 54, the water inlet valve 562, the first motor 527, the second motor 529, and the water pump 565. The first main control module 55 is also connected to the water level sensor in the water tank 563. The first main control module 55 and the second main control module 391 may use an STM32 microprocessor, but are not limited to it.

[0028] The photovoltaic module 2 includes an outer frame 21 and a first photovoltaic panel 22 disposed within the outer frame 21. In one specific embodiment, the outer frame 21 has two first photovoltaic panels 22 disposed in the width direction, and the length can be designed according to actual needs, such as 4-100 sets of first photovoltaic panels 22.

[0029] Example 2, as Figure 3 A pair of partitions 571 are provided on the mounting cavity 57 inside the body 51, and the water tank 563 is installed inside the pair of partitions 571; the first motor 527 and the second motor 529 are installed outside the pair of partitions 571. The partitions separate water and electricity, improving electrical safety.

[0030] Example 3, as Figure 4A cover plate 58 is provided on the outer side of the body 51. The cover plate 58 is installed on the outer side of the mounting cavity 57. Specifically, the cover plate 58 is installed on the outer side of the mounting cavity 57 through a sealing ring to improve waterproofing. A second photovoltaic panel 59 is provided on the outer side of the cover plate 58. The second photovoltaic panel 59 provides power to the cleaning robot 5, improving its endurance. Specifically, the output end of the second photovoltaic panel 59 is connected to the battery assembly 54. The structure and composition of the photovoltaic panel and the battery assembly 54 are existing technologies and commercially available products can be used. This utility model will not elaborate further.

[0031] Example 4, as Figure 2 A first guide wheel 35 is provided on one side of the receiving cavity 33 to cooperate with the cleaning robot 5. It provides guidance and positioning for the cleaning robot 5 when it enters the receiving cavity 33.

[0032] The side walls of the cleaning robot 5 and the maintenance seat 3 are equipped with matching proximity switches 512 and detection elements 36, which are used to detect the proximity of the cleaning robot 5 and the maintenance seat 3.

[0033] This invention features a maintenance base 3 on one side of the photovoltaic module 2. The maintenance base 3 provides a socket or plug for the cleaning robot 5 to charge and refill water. The cleaning robot 5 can periodically drive out of the maintenance base 3 to clean the photovoltaic module and remove accumulated dust. After cleaning or when the water is depleted, it returns to the maintenance base 3 to recharge or refill water, achieving automation, reducing manual intervention, and saving labor and costs. No large-scale modification of existing photovoltaic modules is required. Rainfall is monitored using a rain gauge; when rainfall exceeds a preset value, a decontamination command is issued to the cleaning robot, utilizing rainwater to reduce water consumption and improve decontamination efficiency.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rain day photovoltaic module decontamination apparatus, characterized by, Includes a maintenance stand (3) and a cleaning robot (5), The maintenance seat (3) is installed on one side of the photovoltaic module (2). The cleaning robot (5) has mounting seats (52) at both ends of its body (51). The mounting seats (52) are equipped with driving wheels (521), which cooperate with the upper or lower end of the photovoltaic module (2). A cleaning brush (523) is provided on the lower side of the body (51); A rain gauge (39) is installed on the upper side of the maintenance seat (3) or the cleaning robot (5).

2. The rain day photovoltaic module decontamination apparatus of claim 1, wherein, The upper end of the maintenance seat (3) is provided with a first groove (37), and the rain gauge (39) is installed in the first groove (37); A drain hole (38) is provided on one side of the first groove (37).

3. The rain day photovoltaic module decontamination apparatus of claim 1, wherein, The body (51) and the maintenance base (3) are respectively equipped with a first wireless module (393) and a second wireless module (566); The first main control module (55) inside the body (51) is connected to the second wireless module (566); The second main control module (391) inside the maintenance base (3) is connected to the first wireless module (393) and the rain gauge (39).

4. The rain day photovoltaic module decontamination apparatus of claim 3, wherein, The maintenance base (3) has a receiving cavity (33) that cooperates with the body (51) on one side. The receiving cavity (33) has a first socket (31) and a water supply plug (32) on its side wall. The first socket (31) cooperates with the first socket (53) on one side of the body (51); the water supply plug (32) cooperates with the second socket (561) on one side of the body (51).

5. The rain day photovoltaic module decontamination apparatus of claim 4, wherein, The side wall of the maintenance seat (3) and the side wall of the body (51) are respectively provided with a matching proximity switch (12) and a detection element (36).

6. The rain day photovoltaic module decontamination apparatus according to claim 4, wherein, The second main control module (391) is connected to the control terminals of the detection element (36) and the water supply valve (394) respectively; the water supply valve (394) is connected to the water supply plug (32); The second main control module (391) is also connected to the serial port of the first socket (31); The first main control module (55) is connected to the serial port of the first socket (53); the power supply of the first socket (53) is connected to the battery assembly (54); The battery assembly (54) is connected to the main control module (55).

7. The rain day photovoltaic module decontamination apparatus of claim 6, wherein, The first main control module (55) is connected to the control terminals of the first motor (527) and the second motor (529); the output terminal of the first motor (527) is connected to the driving wheel (521); The output end of the second motor (529) is connected to the cleaning roller (525); the cleaning brush (523) is mounted on the cleaning roller (525).

8. The rain day photovoltaic module decontamination apparatus of claim 7, wherein, A nozzle array (56) is provided on the lower side of the body (51); the output end of the water supply valve (394) is connected to the water tank (563); the output end of the water tank (563) is connected to the nozzle array (56) through the water pump (565).

9. The rain day photovoltaic module decontamination apparatus according to claim 1, wherein, The cleaning brush (523) is provided with guide rollers (515) on its front and rear sides respectively, and at least two second guide wheels (513) are provided on the guide rollers (515) at intervals.

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