Robot Maintenance Station for Cleaning Roller Debris Removal
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Solution Overview
Problem
Current autonomous cleaning robots face challenges in efficiently maintaining and cleaning their internal debris collection systems, particularly in removing accumulated debris and filaments from their cleaning rollers, which can lead to reduced performance and effectiveness over time.
Innovation Solution
A cleaning robot system that includes a maintenance station with a motorized vacuum pump and mechanical agitator cleaning assembly, capable of evacuating debris from the robot's collection bin and cutting off accumulated filaments from the cleaning rollers, ensuring continuous operation and improved cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the robot operates continuously without maintenance, then productivity is improved, but the cleaning assembly accumulates debris and filaments reducing effectiveness
Solution Approach 1:
The robot automatically returns to the maintenance station and the vacuum pump automatically evacuates debris from the collection bin. The mechanical agitator automatically cleans the cleaning roller by removing accumulated filaments. This self-maintenance capability allows continuous operation without human intervention while maintaining cleaning effectiveness.
Solution Approach 2:
The maintenance station performs preliminary cleaning actions by evacuating debris before it accumulates to problematic levels. The mechanical agitator proactively removes filaments from the cleaning roller during scheduled maintenance cycles, preventing performance degradation before it occurs.
2Reliability
If a maintenance station is added to the system, then cleaning effectiveness is improved, but device complexity increases
Solution Approach 1:
The maintenance function is extracted from the mobile robot and placed in a separate stationary maintenance station. This separates the cleaning operation from the maintenance operation, allowing the robot to focus on cleaning while the maintenance station handles debris removal and roller maintenance independently.
Solution Approach 2:
The maintenance station serves multiple functions: it acts as a docking station for the robot, houses the vacuum pump for debris evacuation, contains the mechanical agitator for roller cleaning, and provides structural support. This multi-functionality reduces the need for separate dedicated components for each maintenance task.
3Reliability
If the collection bin is frequently emptied manually, then cleaning effectiveness is maintained, but loss of time increases
Solution Approach 1:
The vacuum pump automatically and periodically evacuates debris from the collection bin without human intervention. The system monitors debris accumulation and triggers evacuation cycles autonomously, eliminating the need for manual bin emptying and the associated time loss.
Solution Approach 2:
The vacuum pump operates periodically to continuously remove debris from the collection bin, maintaining optimal cleaning capacity throughout operation. This continuous maintenance of the bin ensures the robot can operate at full effectiveness without interruption for manual emptying.
4Reliability
If the cleaning roller is manually cleaned, then cleaning effectiveness is maintained, but ease of operation deteriorates
Solution Approach 1:
The mechanical agitator automatically cleans the cleaning roller by removing accumulated filaments during maintenance cycles. The robot positions itself on the maintenance station and the agitator performs the cleaning action autonomously, eliminating the need for manual roller cleaning and the physical effort it requires.
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 system effectively maintains the robot's cleaning performance by regularly evacuating debris and trimming filaments, extending the robot's operational life and maintaining cleaning efficiency.
Implementation Method 1
an air pump that blows air through the station blower port into the cleaning bin while drawing air through the station evacuation port and evacuating debris from the robot cleaning bin into the collection bin
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A cleaning robot system (5) includes a robot (10) and a robot maintenance station (100,1100,1200,1300,1400). The robot (10) includes a chassis (31), a drive system (45) configured to maneuver the robot (10) as directed by a controller (49), and a cleaning assembly (43) including a cleaning assembly housing (40) and a driven cleaning roller (60,65). The robot maintenance station (100,1100,1200,1300,1400) includes a station housing (120) and a docking platform (122) configured to support the robot (10) when docked. A mechanical agitator (510,520) engages the roller (60,65) of the robot (10) with the robot (10) docked. The agitator (510,520) includes an agitator comb (511) having multiple teeth (512) configured to remove accumulated debris from the roller (60,65) as the agitator comb (511) and roller (60,65) are moved relative to one another. The robot maintenance station (100,1100,1200,1300,1400) includes a collection bin (150) arranged to receive and hold debris removed by the mechanical agitator (510,520).