Cleaning system for side slope photovoltaic module

Abstract

The utility model relates to a slope photovoltaic module cleaning system, including support, moving device, brush, spray pipe, surveillance camera and control device, moving device includes lead screw, nut, moving block and motor, brush includes brush handle and brush hair, brush handle and spray pipe are installed on the moving block, brush hair is above photovoltaic module, and the control device includes the lead screw, nut, moving block and motor. When the brush moves on the lead screw along with the moving block, the bristles brush on the photovoltaic module, the spray pipe is arranged on one side of the brush and provided with a row of spray holes, one end of the water hose is connected with the spray pipe, the other end of the water hose is connected with the water pump, the water pump is communicated with the water tank, the monitoring camera is arranged above the photovoltaic module, and the control device is electrically connected with the motor, the water pump and the monitoring camera. And the control device receives the picture sent by the monitoring camera, analyzes the picture and controls the motor and the water pump according to an analysis result. The photovoltaic module cleaning device is timely in cleaning and good in effect, prevents the module from being damaged by a hot spot effect caused by a dirty photovoltaic module, improves the power generation efficiency of the photovoltaic module, and prolongs the service life of the photovoltaic module.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaics, in particular to a cleaning system for slope photovoltaic components. Background Art

[0002] The "hot spot effect" refers to the phenomenon that under certain conditions, defective areas (such as obstruction, cracks, bubbles, delamination, dirt, internal connection failure, etc.) in photovoltaic modules are used as loads to consume the energy generated by other areas, resulting in local overheating. This phenomenon is called the "hot spot effect" of photovoltaic modules. The hot spot effect can cause permanent damage such as local burning of batteries to form dark spots, melting of solder joints, and aging of packaging materials. It is an important factor affecting the output power and service life of photovoltaic modules, seriously affecting the power generation of photovoltaic modules, and may even cause safety hazards.

[0003] Slope photovoltaics use photovoltaic modules installed on the slopes of highways to generate electricity. Compared with traditional photovoltaic systems, slope photovoltaics are located in a special location on the slopes of highways, which makes daily operation and maintenance more difficult. Especially when slope photovoltaics are built on the side of highways, construction operations are very inconvenient and module cleaning is difficult. In addition, due to the large amount of weeds growing next to the slopes, birds often rest there, which can easily leave stains such as bird droppings on the modules. Bird droppings are not only highly corrosive but also sticky. If they are not cleaned in time, they can easily produce hot spot effects over time, burning photovoltaic modules and causing the modules to have a reduced power generation efficiency or even be damaged. Summary of the invention

[0004] In order to solve the above-mentioned cleaning and maintenance problems of slope photovoltaic modules, the utility model proposes a cleaning system for slope photovoltaic modules, so as to clean the slope photovoltaic modules in time and improve the power generation efficiency and life of the slope photovoltaic modules.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a cleaning system for slope photovoltaic components, which is characterized in that it includes a bracket, a moving device, a brush, a nozzle, a monitoring camera and a control device. The moving device includes a screw, a nut, a moving block and a motor. The screw can be rotatably installed on the bracket and is on the bottom side or the high side of the photovoltaic component. The nut is installed on the moving block and cooperates with the screw. The motor is arranged on the bracket to drive the screw to rotate. The brush includes a brush handle and bristles. The brush handle and the nozzle are installed on the moving block. The bristles are above the photovoltaic component. When the brush moves on the screw with the moving block, the bristles brush the photovoltaic component. The nozzle is on one side of the brush and has a row of spray holes. One end of the soft water pipe is connected to the nozzle, and the other end is connected to the water pump. The water pump is connected to the water tank. The monitoring camera is arranged above the photovoltaic component for taking pictures of the lighting component. The control device is electrically connected to the motor, the water pump and the monitoring camera. The control device receives photos sent by the monitoring camera, analyzes the photos, and controls the motor and the water pump according to the analysis results.

[0006] The cleaning system of the slope photovoltaic components provided by the utility model monitors the photovoltaic components through monitoring cameras. If stains such as bird droppings are found on the photovoltaic components, the motor and the water pump are started to move the brush and the nozzle sprays water to clean the upper surface of the photovoltaic components. The cleaning is timely and effective, and the hot spot effect caused by dirty photovoltaic components such as bird droppings is prevented from being damaged, thereby improving the power generation efficiency and life of the photovoltaic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the structure of the cleaning system for slope photovoltaic panels.

[0008] The utility model is further described in detail below in conjunction with the accompanying drawings. Implementation

[0009] See also Figure 1 The cleaning system of the slope photovoltaic assembly includes a bracket 2, a moving device, a brush, a nozzle, a monitoring camera, and a control device. In this embodiment, the bracket 2 is also a bracket for the photovoltaic assembly 1. The moving device is arranged on the bracket 2, including a screw rod 31, a nut, a moving block 33 and a motor 34. The screw rod 31 is arranged on the bottom side of the photovoltaic assembly 1, rotatably mounted on the bracket 2, and can rotate relative to the bracket 2. The nut is mounted on the moving block 33 and cooperates with the screw rod 31, and the motor 34 is used to drive the screw rod 31 to rotate. Start the motor 34, the motor 34 drives the screw rod 31 to rotate, drives the nut matched with the screw rod 31 to move on the screw rod, and the moving block 33 moves with the nut. A guide rod 4 is also provided on the bracket 2, and the guide rod 4 is on the high end side of the photovoltaic assembly and parallel to the screw rod 31. A slider 41 is provided on the guide rod 4, and the slider 41 can move back and forth relative to the guide rod 4. In this embodiment, the screw rod 31 and the guide rod 4 are respectively arranged on the bottom end side and the high end side of the photovoltaic assembly, and the screw rod and the guide rod can also be interchanged. The brush includes a brush handle 51 and bristles 52. One end of the brush handle 51 is mounted on the moving block 33, and the other end is connected to the slider 41. The bristles 52 are on the upper side of the photovoltaic module 1. The brush moves along the screw rod 31 with the moving block 33 and the nut, and the bristles 52 brush the upper surface of the photovoltaic module above the photovoltaic module. The brush handle 51 is supported by the screw rod 31 and the guide rod 4 at the same time, and is firmly installed and moves smoothly, so that the brushing effect on the photovoltaic module is better. One end of the nozzle 6 is mounted on the moving block 33, and the other end is connected to the slider 41. The nozzle 6 is on one side of the brush and can move with the moving block 33 together with the brush. A row of spray holes is provided on the nozzle 6, and water is sprayed to the photovoltaic module during the movement. While spraying water, the bristles are brushing, so that the photovoltaic module can be cleaned and the cleaning effect is good. One end of the soft water pipe 61 is connected to the nozzle 6, and the other end is connected to the water pump 62, and the water pump is connected to the water tank 63. The water tank 63 is arranged beside the photovoltaic module and can receive rainwater. When the water in the water tank is insufficient, tap water can be used to supplement it.

[0010] The control device 8 is arranged on the bracket 2, and is electrically connected to the motor 34 and the water pump 62, and is used to provide power for controlling the motor 34 and the water pump 62, and control the motor 34 and the water pump 62. The power supply of the control device can come from the power generation of the photovoltaic module. The monitoring camera 7 is arranged above the photovoltaic module 1, and is used to take pictures of the illumination module. The monitoring camera 7 is electrically connected to the control device 8, and sends the photographed photos of the photovoltaic module to the control device 8. The control device 8 receives the photos sent by the monitoring camera, and compares them with the pre-set pictures. The pre-set pictures can be pictures of the photovoltaic module taken by the monitoring camera without stains. Through comparative analysis, if the analysis results show that there are stains on the photovoltaic module and need to be cleaned, the motor and the water pump are started to clean the photovoltaic module. The control device can be set so that the brush moves back and forth within a certain distance before and after the stain position of the photovoltaic module, so as to focus on the stain position for multiple cleanings, and the cleaning effect is better. After the cleaning is completed, the brush moves back to the side of the photovoltaic module without blocking the light.

[0011] An electric mowing saw 9 is provided on the moving block 33 and the slider 41, and the electric mowing saw 9 is electrically connected to the control device 9. The electric mowing saw 9 is below the photovoltaic module, and both ends extend out of the photovoltaic module. When the photovoltaic module is cleaned, the electric mowing saw 9 can move with the moving block 33, and the electric mowing saw 9 can be started to weed the area below the photovoltaic module, the outer side of the high end, and the outer side of the bottom end, and the weeds on the slope can be processed while cleaning.

[0012] The control device 8 also includes a wireless communication module, which is wirelessly connected to a remote user terminal to achieve wireless communication. The user terminal can be an electronic product such as a computer or a mobile phone. The control device can send the monitoring screen taken by the monitoring camera to the user terminal, and relevant personnel can understand the on-site situation of the slope photovoltaic module through the user terminal to achieve remote monitoring.

[0013] The cleaning system of the photovoltaic modules on the slope provided by the utility model monitors the photovoltaic modules through the monitoring camera. If stains such as bird droppings are found on the photovoltaic modules, the motor and the water pump are started to move the brush and spray water to clean the upper surface of the photovoltaic modules at the same time. The cleaning is timely and effective, and the hot spot effect caused by dirty photovoltaics such as bird droppings on the modules is prevented from being damaged, thereby improving the power generation efficiency and life of the photovoltaic modules. It not only solves the problem of cleaning the photovoltaic modules on the slope and saves the labor cost of cleaning the modules, but also can deal with the weeds on the slope while cleaning, saving the cost of weeding on the slope.

Claims

1. A cleaning system for slope photovoltaic modules, characterized in that: The utility model comprises a bracket, a moving device, a brush, a nozzle, a monitoring camera and a control device. The moving device comprises a screw, a nut, a moving block and a motor. The screw can be rotatably mounted on the bracket and is on the bottom side or the high side of the photovoltaic module. The nut is mounted on the moving block and cooperates with the screw. The motor is arranged on the bracket to drive the screw to rotate. The brush comprises a brush handle and bristles. The brush handle and the nozzle are mounted on the moving block. The bristles are above the photovoltaic module. When the brush moves on the screw with the moving block, the bristles brush the photovoltaic module. The nozzle is on one side of the brush and has a row of spray holes. One end of the soft water pipe is connected to the nozzle, and the other end is connected to a water pump. The water pump is connected to a water tank. The monitoring camera is arranged above the photovoltaic module and is used to take pictures of the illumination module. The control device is electrically connected to the motor, the water pump and the monitoring camera. The control device receives photos sent by the monitoring camera, analyzes the photos, and controls the motor and the water pump according to the analysis results.

2. The cleaning system for slope photovoltaic modules according to claim 1, characterized in that: The bracket is also provided with a guide rod parallel to the screw rod, the guide rod and the screw rod are respectively on both sides of the photovoltaic component, a slidable slider is installed on the guide rod, and the brush handle and the nozzle are both connected to the slider.

3. The cleaning system for slope photovoltaic modules according to claim 2, characterized in that: An electric mowing saw is arranged on the moving block and the sliding block. The electric mowing saw is located below the photovoltaic assembly and is electrically connected to the control device.

4. The cleaning system for slope photovoltaic modules according to claim 3, characterized in that: Both ends of the electric lawn mowing saw extend out of the photovoltaic assembly.

5. The cleaning system for slope photovoltaic modules according to claim 4, characterized in that: The control device also includes a wireless communication module, which is wirelessly connected to a remote user terminal.

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