Mobile cleaning robot with variable cleaning features

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Solution Overview

Problem

Vacuuming efficiency of mobile cleaning robots varies significantly between different floor surfaces and environments due to varying types of debris and flooring, leading to inconsistent cleaning performance.

Innovation Solution

The mobile cleaning robot is equipped with user-adjustable or automatically adjustable debris ports that can be optimized based on the floor type, allowing for improved vacuuming efficiency by adjusting suction settings accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single fixed debris port configuration is used, then the device structure is simple, but vacuuming efficiency varies significantly between different floor surfaces and debris types

Engineering Contradiction:
Improvevacuuming efficiencyVSAvoiddebris port configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements adjustable debris ports that can dynamically change their position or configuration based on the detected floor surface type and debris characteristics. This allows the vacuuming system to adapt its suction characteristics in real-time, optimizing productivity for different cleaning scenarios while managing device complexity through controlled adjustability rather than multiple fixed configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes physical parameters of the debris ports (such as opening size, position, or shape) to optimize vacuuming efficiency for different floor surfaces and debris types. By varying these parameters dynamically, the system achieves high productivity across diverse environments without requiring completely different device configurations for each scenario.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple suction ports are provided for different floor types, then vacuuming efficiency is improved across environments, but the device structure becomes more complex

Engineering Contradiction:
Improvecleaning performance across environmentsVSAvoidmultiple debris ports
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs the debris port system to serve multiple functions: a single adjustable debris port structure that can adapt to different floor surfaces and debris types, rather than requiring separate dedicated ports for each scenario. This universal design achieves high adaptability while minimizing device complexity by consolidating multiple functions into one versatile component.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The adjustable debris ports can dynamically reconfigure themselves based on environmental detection, allowing the same physical structure to serve different cleaning purposes. This dynamic adaptability provides versatility across environments without the need for multiple static ports, thereby managing device complexity effectively.

Inventive Principle:
Principle #15Dynamics

3Productivity

If debris ports are made adjustable based on floor type, then cleaning efficiency is optimized, but the control system complexity increases

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidadjustable debris port control
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent incorporates sensors that detect floor surface type and debris characteristics, providing feedback to the control system. This feedback mechanism enables automatic adjustment of debris port configuration to optimize cleaning efficiency. The control complexity is managed by using straightforward sensor-input and actuator-output relationships that directly link environmental detection to port adjustment without requiring complex decision-making algorithms.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12527447B2Mobile cleaning robot with variable cleaning features
Publication Date: 2026.01.20 IROBOT CORP
  • US12527447B2 patent drawing
  • US12527447B2 patent drawing
  • US12527447B2 patent drawing

AI summary

A mobile cleaning robot can include a body movable within an environment and a debris bin located at least partially within the body. The robot can include a cleaning assembly connected to the body, where the cleaning assembly includes a first debris port connected to the debris bin and a second debris port connected to the debris bin.