Segmented Damping Track for Solar Panel Cleaning Robot Adhesion
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Solution Overview
Problem
Existing cleaning robots for solar panels face challenges in maintaining adhesion on inclined surfaces with surface irregularities, such as frames and screws, and risk damaging the panels due to uneven weight distribution and pressure.
Innovation Solution
A multi-layer track structure with an inner elastomeric layer, intermediate damping blocks with a honeycomb design, and outer rolling pads, providing improved adhesion, flexibility, and load distribution, while absorbing surface irregularities and preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional solid tracks are used on solar panels, then the track structure is simple, but the tracks detach from surface irregularities (frames and screws) and adhesion is reduced
Solution Approach 1:
The track is divided into multiple independent damping blocks arranged along the continuous strip. Each block can independently deform to accommodate surface irregularities while maintaining overall track integrity and adhesion to the solar panel surface.
Solution Approach 2:
The damping blocks are made of elastomeric material with a honeycomb structure, providing localized flexibility and shock absorption at specific contact points with the solar panel surface, while the continuous strip maintains overall structural integrity.
2Object-affected harmful factors
If rigid tracks are used, then the track structure is simple, but the weight distribution is uneven and panel damage risk increases
Solution Approach 1:
The track is segmented into multiple damping blocks that can independently deform to distribute the robot's weight evenly across the solar panel surface, preventing excessive pressure concentration that could cause microcracks or panel damage.
Solution Approach 2:
The elastomeric damping blocks with honeycomb structure provide preemptive cushioning between the track and solar panel surface, absorbing shocks and deformations before they can transmit damaging forces to the panels.
3Strength
If simple track structures are used, then manufacturing is easy, but the tracks have poor resistance to metal frame and screw edges
Solution Approach 1:
The damping blocks combine elastomeric material with a honeycomb structural design, creating a composite structure that provides both toughness and resistance to cutting edges of metal frames and screws, while remaining manufacturable through standard molding processes.
4Ease of operation
If the track is rigid, then the structure is simple, but the robot has difficulty rotating when turning
Solution Approach 1:
The segmented damping block structure allows different sections of the track to move independently during robot turning, facilitating rotation while maintaining overall track coherence and adhesion to the solar panel surface.
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
The track design ensures effective grip on wet inclined planes up to angles greater than 25°, reduces panel damage risk, and extends service life by distributing load and absorbing deformations.
Implementation Method 1
the damping blocks being made of elastomeric material and having a honeycomb structure... allow, thanks to the honeycomb structure, to dose the damping and therefore the individual crushing of the blocks. It is thus possible to absorb local deformations of the surface on which the robot moves
Implementation Method 2
the flexibility, or damping, of the intermediate layer also contributes to a better distribution of the loads
Implementation Method 3
an outer rolling layer coming into contact with the surface on which it moves, the rolling layer being formed by pads carried by the flexible blocks... give good grip on wet inclined planes up to angles of inclination greater than 25°
Data Source
Figure 1
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Figure 4~5
AI summary
A drive track for a cleaning robot moving on inclined surfaces such as photovoltaic panels has a multilayer structure comprising: an internal layer (20) formed by a continuous belt having an internal face (20.1) able to engage with means for driving the track; an intermediate layer (22) comprising a plurality of damping blocks (22.1) disposed over the entire length of the continuous belt of the internal layer with a predefined separation (e); and an external running layer (24) coming into contact with the surface on which the track moves, the running layer being formed by pads (24.1) supported by the damping blocks (22.1). The damping blocks are made of elastomer material and have a cellular structure with a plurality of parallel through-channels (22.2).