Surface Interaction Layer With Fluid Supply and Dirty Water Drain

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cleaning devices face issues with simultaneous operation of vacuum and steam functions, leading to reduced effectiveness and convenience due to moisture entering air flow conduits and forming grime, and require frequent dipping for fluid application and removal.

Innovation Solution

A compact cleaning device with a surface interaction layer that supplies cleaning fluid and drains dirty fluid using underpressure, eliminating the need for fluid storage and ensuring clean fluid is always used, featuring a cloth or microfiber material for efficient cleaning and drainage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If vacuum and steam functions are operated simultaneously on a single cleaning appliance, then cleaning versatility is improved, but moisture enters air flow conduits and forms grime reducing effectiveness

Engineering Contradiction:
Improvecleaning versatilityVSAvoidcleaning effectiveness
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The cleaning appliance is divided into separate functional modules: a vacuum module with air flow conduit and a steam module with water reservoir. These modules can operate independently or be used in sequence, preventing moisture contamination while maintaining versatility through modular combination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The appliance is designed to perform cleaning functions in periodic sequence rather than simultaneously. The vacuum function operates first to remove debris, followed by the steam function for sanitization, preventing moisture ingress into air flow paths while achieving comprehensive cleaning.

Inventive Principle:
Principle #19Periodic action

2Ease of operation

If cleaning fluid is stored in a reservoir for repeated use, then convenience is improved, but the fluid becomes contaminated with dirt reducing cleaning quality

Engineering Contradiction:
ImproveconvenienceVSAvoidcleaning quality
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The dirty fluid is extracted and separated from the clean cleaning fluid through a filtration system. A filter element captures contaminants while allowing clean fluid to pass through and be reused, maintaining cleaning quality while extending fluid usage life.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system recovers clean cleaning fluid from used fluid through filtration. The filter removes dirt and contaminants, allowing the recovered clean fluid to be pumped back into the reservoir for repeated use, eliminating the need for frequent refilling while maintaining cleaning effectiveness.

Inventive Principle:
Principle #34Discarding and recovering

3Duration of action of moving object

If the surface interaction layer has fluid storage capacity, then fluid supply continuity is improved, but the layer thickness increases reducing compactness

Engineering Contradiction:
Improvefluid supply continuityVSAvoidlayer thickness
Core Design Contradiction:
Duration of action of moving objectVSVolume of moving object

Solution Approach 1:

The mechanical fluid storage system is replaced with a pump-based fluid delivery system. A pump continuously supplies cleaning fluid from a remote reservoir through channels in the surface interaction layer, eliminating the need for thick built-in storage while ensuring continuous fluid supply.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Fluid storage is moved from the two-dimensional layer structure to a three-dimensional remote reservoir. The pump system transports fluid through channels, separating the storage function from the interaction layer and maintaining layer compactness while ensuring fluid availability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Device complexity

If a single pipe is used for both water supply and drainage, then device complexity is reduced, but fluid contamination occurs reducing cleaning effectiveness

Engineering Contradiction:
Improvepipe configurationVSAvoidcleaning effectiveness
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The fluid transport system is segmented into separate supply and drainage pipes. The water supply pipe delivers clean fluid from the reservoir to the surface interaction layer, while the drainage pipe removes dirty fluid to the collection container, preventing cross-contamination and maintaining cleaning effectiveness.

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 device provides effective and convenient cleaning by continuously supplying clean fluid and draining dirty fluid, preventing dirt from sticking to the surface and maintaining cleaning efficiency without the need for frequent bucket dipping.

Implementation Method 1

a dirty fluid drain in said surface interaction layer for draining off the dirty fluid from the surface interaction layer by means of underpressure

Methodology Applied
Scientific EffectUnderpressure: Pressure Drop

Implementation Method 2

a cleaning fluid supply for delivering a cleaning fluid to the surface interaction layer

Methodology Applied
Scientific EffectFluid delivery:

Data Source

PatentEP3585234B2Cleaning device
Publication Date: 2024.05.22 KONINKLIJKE PHILIPS NV
  • EP3585234B2 patent drawingFigure 1A~1C
  • EP3585234B2 patent drawingFigure 2A~2B
  • EP3585234B2 patent drawingFigure 3~4

AI summary

A cleaning device comprises a surface interaction layer (ML), a cleaning fluid supply (CFF) provided with a cleaning fluid channel (CFC) at the surface interaction layer (ML) for supplying a cleaning fluid to a surface (F) through the surface interaction layer (ML) being in contact with the surface (F), and a dirty fluid drain (DFD) having a dirty fluid channel (DFC) at the surface interaction layer (ML) for draining, by means of underpressure, dirty water from the surface (F) through the surface interaction layer (ML) being in contact with the surface (F).