Robotic cleaner debris removal docking station

Solution Overview

Problem

Robotic vacuum cleaners face performance degradation due to debris accumulation in their dust cups, requiring frequent emptying to maintain cleaning efficiency, and lack an efficient mechanism for debris removal and disposal.

Innovation Solution

A docking station with a pivoting dust cup that can transition between an in-use and removal position, equipped with a suction motor and filter system, allowing for debris collection and easy emptying, and featuring a cyclonic separator for particle size differentiation and an agitator for filter cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the dust cup is made larger to accommodate more debris, then the cleaning duration increases, but the device complexity and difficulty of emptying increase

Engineering Contradiction:
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The dust cup is divided into a removable cup portion and a base portion that can separate from each other. The cup portion can be detached from the base portion to allow easy emptying of debris, while the base portion remains with the docking station. This segmentation allows a larger capacity dust cup without increasing the complexity of the entire system.

Inventive Principle:
Principle #1Segmentation

2Loss of time

If the dust cup is made larger to hold more debris, then the number of emptying cycles decreases, but the ease of operation for emptying deteriorates

Engineering Contradiction:
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The dust cup is segmented into a removable cup portion and a base portion. The cup portion can be easily detached from the base portion by pulling it away, allowing quick emptying of debris without handling the entire large dust cup structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cup portion is extracted as a separate removable component from the base portion. This allows the user to easily remove and empty just the debris-containing cup portion without manipulating the entire dust cup assembly, significantly improving ease of operation.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If the docking station includes a suction motor and filter system for debris removal, then the productivity increases, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The suction motor, filter system, and dust cup base are merged into a single integrated dust cup assembly that can be manufactured as one unit. This combining of components simplifies the manufacturing process while providing complete debris removal functionality at the docking station.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The docking station's suction motor and filter system automatically remove debris from the cup portion when docked, without requiring manual intervention. This self-service debris removal mechanism increases productivity while keeping the manufacturing process relatively simple by using standard components.

Inventive Principle:
Principle #25Self-service

4Ease of operation

If the dust cup is designed to pivot between in-use and removal positions, then the ease of operation for emptying improves, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dust cup is segmented into a removable cup portion and a base portion with a pivot mechanism. The cup portion can pivot between an in-use position (attached to base) and a removal position (detached and removable), providing easy operation without requiring complex mechanisms throughout the entire dust cup.

Inventive Principle:
Principle #1Segmentation

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 docking station effectively manages debris accumulation by allowing multiple cleanings before needing emptying, maintains cleaning performance, and facilitates easy disposal and filter maintenance, enhancing the operational efficiency of robotic vacuum cleaners.

Implementation Method 1

When the suction motor is activated, air flow along a flow path from the fluid inlet through the dust cup and into the suction motor such that it is exhausted from the docking station

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Implementation Method 2

featuring a cyclonic separator for particle size differentiation

Methodology Applied
Scientific EffectCyclonic separation: Cyclone Separation

Implementation Method 3

equipped with a suction motor and filter system, allowing for debris collection

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Data Source

PatentUS20220061614A1Robotic cleaner debris removal docking station
Publication Date: 2022.03.03
  • US20220061614A1 patent drawing
  • US20220061614A1 patent drawing
  • US20220061614A1 patent drawing

AI summary

A docking station for a robotic cleaner may include a base, the base including a support and a suction housing, a docking station suction inlet defined in the suction housing, the docking station suction inlet being configured to fluidly couple to the robotic cleaner, and a docking station suction motor, wherein the docking station suction motor is activated after the robotic cleaner is determined to be docked with the docking station and in response to a triggering event.