Floor Robot Cover Drainage Layout for Spill-Proof Electronics
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Solution Overview
Problem
Autonomous floor-traversing robots are vulnerable to liquid damage from spills, which can short circuit or malfunction electronics if not properly protected.
Innovation Solution
The robot features a contoured protective cover with drainage channels that guide liquids away from internal components, including primary and secondary drainage channels and liquid-tight button plates to prevent seepage, ensuring liquids safely egress without contacting critical electronics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the robot uses a sealed enclosure to protect electronics from liquid, then liquid protection is improved, but liquid cannot be drained away
Solution Approach 1:
The enclosure is segmented into liquid-resistant zones and drainage zones. The top surface includes recessed areas that collect liquid, while raised edges create drainage channels that guide liquid away from electronics. This segmentation allows simultaneous liquid protection and drainage functionality.
Solution Approach 2:
Drainage channels act as intermediary pathways between the liquid-exposed top surface and the liquid-sensitive internal components. These channels provide a controlled route for liquid to flow away from the electronics, preventing direct contact while allowing the top surface to remain open for navigation.
2Ease of operation
If the robot uses an open top surface for navigation, then ease of operation is improved, but liquid can contact internal electronics
Solution Approach 1:
Different regions of the top surface have different liquid management properties. The central navigation area remains open and accessible, while peripheral recessed areas and raised edges create liquid collection and drainage zones. This local differentiation allows navigation functionality while protecting against liquid intrusion.
Solution Approach 2:
The top surface geometry is pre-configured with recessed areas and raised edges that automatically guide liquid away from electronics before liquid can penetrate into the chassis. This preliminary directional guidance prevents liquid from reaching sensitive components without requiring active intervention.
3Reliability
If the robot adds drainage channels and protective features, then liquid protection is improved, but device complexity increases
Solution Approach 1:
The top surface serves multiple functions simultaneously: it provides navigation access, collects liquid through recessed areas, directs liquid flow via raised edges, and protects internal components. By merging these functions into a single integrated structure, the design avoids adding separate protective components that would increase complexity.
Solution Approach 2:
The raised edges and recessed areas serve dual purposes: they structurally support the top surface while simultaneously creating drainage channels and liquid collection zones. This multi-functionality reduces the need for additional dedicated liquid protection components, maintaining design simplicity.
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
This design effectively reduces the risk of liquid damage to internal components, preserving electronic functionality even when encountering hazards like water or coffee spills.
Implementation Method 1
drainage channels that guide liquids away from internal components
Data Source
Figure 1~2
Figure 3
Figure 4A
AI summary
An autonomous floor-traversing robot (100) includes: a wheeled body including a chassis (102) and at least one motorized wheel configured to propel the chassis across a floor, the chassis defining an interior compartment disposed beneath a chassis ceiling; a cover (104) extending across at least a central area of the chassis ceiling; and a graspable handle (138) connected to the chassis and located outside the cover so as to be accessible from above the robot, the handle arranged to enable lifting of the robot. The chassis ceiling defines drainage channels configured to conduct the liquid away from the central area of the chassis ceiling. A liquid-tight button plate is provided on the cover.