Clothes treating apparatus and filter technology

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Solution Overview

Problem

Clothes treating apparatuses face inefficiencies due to the accumulation of foreign substances like lint in heat exchangers and indoor spaces, as existing systems lack effective filtration and automatic cleaning mechanisms for filters.

Innovation Solution

A clothes treating apparatus with a filter assembly that includes a housing, filter units, and a substance removal unit with a brush and rotating arm to automatically clean and compress foreign substances, storing them in a designated area within the apparatus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If filter units are installed to remove foreign substances from discharged air, then air quality is improved, but the filter units accumulate lint and require manual cleaning

Engineering Contradiction:
Improveforeign substances in discharged airVSAvoidmanual cleaning of filter units
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system employs an automatic lint removal mechanism where a rotating brush contacts the filter surface to dislodge accumulated lint, and a vacuum system simultaneously extracts the loosened particles. This self-cleaning process occurs automatically during or after drying cycles, eliminating the need for manual filter maintenance while keeping the filter units effective at removing foreign substances from discharged air

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A removable collection container serves as an intermediary component between the filter units and the external environment. The container collects lint from multiple filter units and can be easily detached and emptied by the user, simplifying the maintenance process while allowing the filter units themselves to remain in place and continue functioning

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If filter units continuously capture lint, then air filtration effectiveness is improved, but the filters become clogged and require frequent maintenance

Engineering Contradiction:
Improvelint accumulation in discharged airVSAvoidtime for filter maintenance
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The automatic lint removal system operates continuously or at scheduled intervals to prevent lint accumulation on the filter units. The rotating brush and vacuum extraction work together to continuously clear the filter surfaces, maintaining their filtration effectiveness without interruption to the drying process and eliminating the need for the user to stop and manually clean the filters

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system performs self-maintenance through the automatic brush and vacuum mechanism that continuously removes lint from the filter units, preventing clogging and maintaining optimal filtration performance without requiring user intervention or time investment for manual cleaning

Inventive Principle:
Principle #25Self-service

3Object-affected harmful factors

If multiple filter units are installed to improve filtration, then foreign substance removal is improved, but device complexity increases

Engineering Contradiction:
Improveforeign substances in discharged airVSAvoidfilter assembly structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple filter units are positioned to process air flow in series or parallel configuration, with their lint collection areas merging into a single removable collection container. This merging approach allows multiple filters to work together for improved filtration while presenting a unified, simplified maintenance interface where one container collects lint from all filter units, reducing the operational complexity despite the increased number of filter components

Inventive Principle:
Principle #5Merging (Combining)

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 solution effectively removes foreign substances from discharged air, automatically cleans filter units, compresses and stores them, and includes a washable storage space, enhancing drying efficiency and reducing maintenance frequency.

Implementation Method 1

The substance removal unit includes a brush contacting the filter. The brush is configured to move substances remaining on a portion of the filter

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

The brush is configured to compress substances collected in the storage area defined within the housing

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentEP2567016B1Clothes treating apparatus and filter technology
Publication Date: 2021.08.25 LG ELECTRONICS INC
  • EP2567016B1 patent drawingFigure 1
  • EP2567016B1 patent drawingFigure 2(a)~2(b)
  • EP2567016B1 patent drawingFigure 3

AI summary

A clothes treating apparatus includes an accommodating space, an air supply unit, a duct unit and a filter assembly. The accommodating space is configured to receive one or more clothing articles. The air supply unit is configured to supply air to the accommodating space. The duct unit is configured to guide discharge of air from the accommodating space. The filter assembly is positioned to filter air discharged from the accommodating space through the duct unit and includes a housing, a filter positioned in the housing, a substance removal unit and a collection area defined within the housing. The filter positioned in the housing is configured to filter substances from air passing through the filter assembly. The substance removal unit is configured to move substances remaining on a portion of the filter and press the moved substances into the collection area, which is configured to collect removed substances within the housing.