cleaner

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Solution Overview

Problem

Existing cleaners face issues with dust compression parts obstructing airflow and creating gaps that allow dust to accumulate, leading to reduced dust compression performance and uneven movement.

Innovation Solution

A cleaner design featuring a movable frame that surrounds the cyclone flow axis, guiding airflow and preventing dust from entering gaps between movable parts, with an inclined frame structure to ensure smooth air flow and minimize deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the dust compression part is located higher than the opening at standby position, then the dust compression part can be accommodated in the dust bin, but the internal space of the dust bin is reduced and air flow is not guided

Engineering Contradiction:
Improvedust bin internal spaceVSAvoidair flow guidance
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The dust compression part is designed with an inclined surface that extends upward beyond the opening plane, utilizing the vertical dimension to guide airflow while maintaining adequate internal space. The inclined surface creates a gradual transition that directs air flow without completely blocking the opening, resolving the contradiction between space utilization and flow guidance.

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

2Length of moving object

If the dust compression part is located higher than the opening, then the vertical length for dust compression is reduced, but dust compression performance deteriorates

Engineering Contradiction:
Improvevertical length for compressionVSAvoiddust compression performance
Core Design Contradiction:
Length of moving objectVSProductivity

Solution Approach 1:

The dust compression part features a curved inclined surface that gradually transitions from the opening upward. This curved geometry allows the compression part to extend beyond the opening while maintaining sufficient vertical compression distance through the angled approach, improving dust compression performance without sacrificing compression length.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of operation

If the dust compression part moves in contact with the inner circumferential surface, then the inner surface can be cleaned, but dust may be caught between them causing uneven movement

Engineering Contradiction:
Improveinner surface cleaningVSAvoidmovement smoothness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The dust compression part is designed with a flexible or elastically deformable material that allows it to conform to the inner circumferential surface during cleaning. This flexibility prevents rigid contact that would trap dust, enabling smooth movement while maintaining effective cleaning contact between the compression part and surface.

Inventive Principle:
Principle #30Flexible shells and thin films

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

Prevents dust from entering gaps between movable parts, maintaining efficient airflow and reducing dust accumulation, thereby enhancing dust compression performance and smooth operation.

Implementation Method 1

a cyclone part configured to separate air and dust

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

configured to guide air and dust introduced through a suction opening

Methodology Applied
Scientific EffectAir flow guidance:

Data Source

PatentEP3960060B1cleaner
Publication Date: 2025.12.31 LG ELECTRONICS INC
  • EP3960060B1 patent drawingFigure 1
  • EP3960060B1 patent drawingFigure 2
  • EP3960060B1 patent drawingFigure 3

AI summary

This cleaner comprises: an intake opening; a cyclone part for separating air and dust; a housing which is provided with a dust container for storing the dust separated from the air in the cyclone part; and a frame which is disposed to surround the axis of the cyclone flow inside the housing and can move between a first position and a second position inside the housing, wherein the frame includes a first body which is disposed at the first position to face the intake opening and is inclined relative to the axis of the cyclone flow, and the upper end of the first body is positioned at the same level or higher than the upper end of the intake opening.