Magnetic-Coupled PV Cleaning Robot for Uneven Terrain Stability
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Solution Overview
Problem
Existing photovoltaic cleaning robots face instability on uneven terrain, inability to clean large spans and angles, and inefficiency in cleaning both sides of solar panels, particularly stubborn stains and rear sides.
Innovation Solution
A photovoltaic cleaning system with a robotic arm detachably connected to a cleaning robot, equipped with visual recognition, electronically controlled attracting devices, and a flushing mechanism, allowing all-round cleaning and improved stability on uneven grounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the robotic arm is rigidly connected to the cleaning robot, then the structure is more stable, but the vibration from uneven terrain is transmitted to the cleaning robot, reducing cleaning stability
Solution Approach 1:
The patent introduces a magnetic coupling mechanism as an intermediary between the robotic arm and cleaning robot. The robotic arm carries a magnetic attracting device that magnetically couples with a magnetic attracting part on the cleaning robot, creating a flexible connection that transmits force while isolating vibrations. This intermediary structure resolves the contradiction by providing both structural support and vibration isolation.
Solution Approach 2:
The patent changes the connection parameter from rigid fixed connection to magnetic coupling with controllable attraction force. By adjusting the magnetic attraction strength, the system can adapt between stable connection during cleaning and flexible connection during movement, resolving the stability-vibration contradiction through parameter adjustment.
2Productivity
If the cleaning robot operates independently, then it can clean the current solar module, but it cannot efficiently transport to adjacent modules or clean both sides of panels
Solution Approach 1:
The cleaning robot is designed with multi-functionality: it can clean both front and rear sides of solar modules, and can be transported by the robotic arm to adjacent modules. The robot includes cleaning mechanisms for both sides of panels and positioning systems for accurate placement, enabling one device to perform multiple functions and greatly improving productivity and versatility.
Solution Approach 2:
The patent separates the transportation function from the cleaning function by using a robotic arm to carry the cleaning robot to target positions. This extraction of the transportation function allows the cleaning robot to focus on cleaning while being efficiently positioned, improving overall system productivity.
3Ease of manufacture
If the cleaning robot uses brush-based cleaning, then it can remove loose dust, but it cannot effectively clean firmly adhered stains on photovoltaic glass panels
Solution Approach 1:
The patent merges multiple cleaning mechanisms: brush-based cleaning for loose dust and water spraying for firmly adhered stains. The cleaning robot includes both brush components and spraying components that work together, combining the advantages of mechanical brushing and liquid washing to effectively remove all types of stains while maintaining reasonable manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances stability and cleaning efficiency by reducing vibrations on uneven terrain and enabling all-round cleaning of solar panels, including stubborn stains on both sides.
Implementation Method 1
equipped with visual recognition, electronically controlled attracting devices
Data Source
AI summary
The invention discloses a photovoltaic cleaning system and a cleaning method. The system comprises an autonomous navigation mobile device, a robotic arm with a connecting end and a carrying end, and a cleaning robot, wherein the connecting end is connected to the mobile device, and the carrying end can connect the cleaning robot. The system has a cleaning state and a carrying state. In the cleaning state, the cleaning robot cleans the solar modules, and the carrying end separates from the cleaning robot. In the carrying state, the carrying end connects and carries the cleaning robot to a preset position on the solar modules. In the cleaning process, the robotic arm and the cleaning robot can be separated without hard connection between them. The vibration transmitted to the cleaning robot when the mobile device moves on uneven grounds is reduced, improving the stability of the cleaning robot during the operation.