cleaner

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Solution Overview

Problem

Conventional cleaners face issues with dust accumulation in dust containers, requiring frequent emptying and affecting performance due to the design of compression members that block air intake and are prone to deformation, leading to inefficient operation and maintenance challenges.

Innovation Solution

A cleaner design with a cleaning unit that compresses dust within the dust container without opening it, featuring a guide edge with an inclined surface to ensure air flow and a support rib to maintain a constant gap with the filtering unit, along with a reinforced connection to prevent deformation and improve durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a compression member is mounted to surround the filter part and scrape dust while moving toward the base, then dust compression is achieved, but air introduction is blocked and the introduction opening becomes narrow

Engineering Contradiction:

Improvedust compressionVSAvoidair introduction efficiency

Core Design Contradiction:

Quantity of substanceVSProductivity

Solution Approach 1:

The compression member is divided into multiple segments that can move independently, allowing air to pass through gaps between segments while still compressing dust effectively

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the compression member have different properties - the outer surface has cleaning parts for scraping dust, while the inner structure provides compression force, with localized features that maintain air flow paths

Inventive Principle:

Principle #3Local quality

2Productivity

If the compression member is positioned close to the air introduction opening to compress dust, then dust compression efficiency is improved, but large foreign matter blocks the introduction opening

Engineering Contradiction:

Improvedust compression efficiencyVSAvoidintroduction opening blockage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The compression member is designed with a three-dimensional structure that creates vertical space above it, allowing large foreign matter to pass overhead while the member continues to compress dust at its operational position

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The guide wall acts as an intermediary structure that directs air flow and foreign matter around the compression member, preventing blockage while maintaining compression functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

3Quantity of substance

If the compression member moves vertically to compress dust, then dust accumulation is reduced, but the member is prone to deformation and requires frequent maintenance

Engineering Contradiction:

Improvedust accumulation reductionVSAvoidcompression member durability

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The connection part is designed with reinforced structure and cushioning features that prevent deformation before it occurs, extending the service life of the compression member

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The compression member uses composite construction with multiple materials that provide both flexibility for dust compression and strength for durability, reducing deformation and maintenance needs

Inventive Principle:

Principle #40Composite materials

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 allows for efficient dust compression and air intake, maintaining high operation performance, preventing dust buildup, and enhancing the reliability and durability of the cleaner by ensuring proper alignment and strength of components.

Implementation Method 1

a guide edge extending from the lower portion of the cleaning unit toward the bottom of the dust collection space, wherein a surface of the guide edge facing the inner surface of the housing is inclined to gradually increase the gap between the surface of the guide edge and the inner surface of the housing at the same height in a direction toward an end portion of the guide edge that is directed toward the bottom of the dust collection space

Methodology Applied

Scientific EffectAir flow guidance:

Implementation Method 2

a support rib provided in the cleaning unit to support a rear surface of the cleaning ring

Methodology Applied

Scientific EffectMechanical support:

Implementation Method 3

a cleaning unit provided inside a housing, the cleaning unit raising and lowering while surrounding a filtering unit

Methodology Applied

Scientific EffectMechanical compression: Compression

Data Source

PatentUS20230355056A1cleaner

Publication Date: 2023.11.09 LG ELECTRONICS INC

AI summary

A cleaner is disclosed. The cleaner includes: a housing having an introduction opening through which air is introduced; a filtering unit configured to be mounted in an inner space of the housing, and defining a dust collection space between the filtering unit and an inner surface of the housing; and a cleaning unit surrounding the filtering unit and configured to be raised and lowered. When the cleaning unit is in an initial position at least a portion of the cleaning unit is connected to an air introduction path extending from the introduction opening such that the cleaning unit guides a flow of introduced air. A guide edge extends from a lower portion of the cleaning unit toward a bottom of the dust collection space, and a surface of the guide edge facing the inner surface of the housing is inclined.