Pneumatic Debris Evacuation Station for Robotic Cleaner Charging
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Solution Overview
Problem
Existing robotic cleaners lack an efficient method for autonomously evacuating debris collected from their bins and simultaneously charging, as they require manual intervention for debris disposal and charging, which can lead to inefficiencies and increased maintenance.
Innovation Solution
A robotic evacuation station with a base and canister system that pneumatically interfaces with the cleaner's debris bin, allowing for autonomous debris removal and charging, featuring a ramp for alignment, pneumatic conduits, air movers, particle filters, and a controller to manage operation modes, enabling both evacuation and air filtration functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual intervention is used for debris disposal and charging, then device complexity is reduced, but productivity decreases and loss of time increases
Solution Approach 1:
The robotic cleaner autonomously docks with the evacuation station to evacuate debris from its bin and charge its battery without human intervention. The system performs self-maintenance functions including debris removal and recharging, enabling the cleaner to service itself automatically during idle periods.
Solution Approach 2:
The evacuation station integrates multiple functions into a single device: it evacuates debris from the cleaner's bin using pneumatic conveyance, charges the cleaner's battery through electrical contacts, and filters air through a particle filter. This multi-functional design consolidates what would otherwise require separate operations.
2Loss of time
If autonomous evacuation is implemented, then loss of time decreases, but device complexity increases
Solution Approach 1:
The evacuation station uses a pneumatic system with an air mover, intake conduit, and separator to rapidly evacuate debris from the cleaner's bin. Air flow is generated to transport debris through the conduit system, enabling quick removal without mechanical contact or complex moving parts in the cleaner itself.
Solution Approach 2:
The system replaces manual mechanical debris removal with an automated pneumatic conveyance system. Instead of requiring physical handling or mechanical ejection mechanisms in the cleaner, air flow is used to transport debris through conduits to the separator and collection container, simplifying the cleaner's design while enabling autonomous operation.
3Object-generated harmful factors
If particle filtration is added, then object-generated harmful factors are reduced, but device complexity increases
Solution Approach 1:
A particle filter is introduced as an intermediary component between the pneumatic debris conveyance system and the surrounding environment. Air flow carrying fine particles passes through the filter, which captures and removes particulate matter before air is exhausted, preventing pollution while allowing the pneumatic system to operate effectively.
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
Enables efficient, autonomous debris evacuation and charging of robotic cleaners, reducing manual intervention and improving maintenance efficiency by integrating debris removal and charging processes within the system.
Implementation Method 1
The air mover has an inlet and an exhaust, with the air mover moving air received from the inlet out the exhaust
Implementation Method 2
The evacuation station may pass an air flow through a particle filter to remove small particles (e.g., ̃0.1 to ̃0.5 micrometers) before exhausting to the environment
Implementation Method 3
The separator is in pneumatic communication with the second conduit portion of the debris intake conduit, with the separator separating debris out of a received flow of air
Data Source
AI summary
An evacuation station includes a base and a canister removably attached to the base. The base includes a ramp having an inclined surface for receiving a robotic cleaner having a debris bin. The ramp defines an evacuation intake opening arranged to pneumatically interface with the debris bin. The base also includes a first conduit portion pneumatically connected to the evacuation intake opening, an air mover having an inlet and an exhaust, and a particle filter pneumatically the exhaust of the air mover. The canister includes a second conduit portion arranged to pneumatically interface with the first conduit portion to form a pneumatic debris intake conduit, an exhaust conduit arranged to pneumatically connect to the inlet of the air mover when the canister is attached to the base, and a separator in pneumatic communication with the second conduit portion.