Vacuum Cleaner Dust Collector with Compression Discharge

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Solution Overview

Problem

Existing vacuum cleaners face challenges in providing users with convenience during the dust discharging process, as they often scatter dust or require complex procedures, and current dust collectors are inefficient in separating and discharging large and fine dust simultaneously.

Innovation Solution

A dust collector with separate units for large and fine dust, utilizing cyclones for separation and a compression device that rotates along the outer surface of the dust containers to compress and facilitate simultaneous discharge of collected dust, ensuring it is not scattered and can be easily emptied.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If dust is collected in a single dust container, then the device complexity is reduced, but the ability to separate and discharge large and fine dust simultaneously is worsened

Engineering Contradiction:
Improvedust container structureVSAvoiddust separation and discharge capability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The dust container is divided into two separate dust storing units: a first dust storing unit for collecting large dust particles and a second dust storing unit for collecting fine dust particles. This segmentation allows different types of dust to be stored separately and discharged simultaneously through different discharge openings, resolving the contradiction between structural simplicity and dust separation capability.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a compression device is added to compress dust, then the ease of operation during dust discharge is improved, but the device complexity increases

Engineering Contradiction:
Improvedust discharge convenienceVSAvoidcompression device structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The compression device is designed to be automatically activated during the dust discharge process. When the discharge openings are opened, the compression device automatically compresses the dust in both storing units, eliminating the need for manual compression operations and improving ease of operation while keeping the automation level moderate.

Inventive Principle:
Principle #25Self-service

3Device complexity

If dust is discharged without compression, then the device complexity is reduced, but the productivity during dust disposal is worsened

Engineering Contradiction:
Improvedischarge mechanismVSAvoiddust discharge efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The compression device performs dust compression in advance before the dust is discharged from the container. By compressing the dust while it is still stored in the dust storing units, the system prepares the dust for efficient discharge, increasing productivity by enabling faster and more complete dust removal without requiring complex discharge mechanisms.

Inventive Principle:
Principle #10Preliminary action

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 prevents dust scattering and simplifies the discharge process by compressing and collecting both large and fine dust within the dust collector, allowing for efficient and convenient disposal without scattering or unexpected discharge.

Implementation Method 1

a first dust storing unit formed in a hollow cylindrical shape between an inner circumferential surface of a first dust container and an outer circumferential surface of a second dust container located in the first dust container, and configured to collect dust firstly-separated from air by a first cyclone

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 2

a second dust storing unit disposed to be surrounded by the first dust storing unit, and configured to collect fine dust secondly-separated from the air by second cyclones, located above the first cyclone, into a space formed by the second dust container

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 3

a compression device that is at least partly rotatably, and configured to reciprocatingly rotate along the outer circumferential surface of the second dust container to compress the dust collected in the first dust storing unit

Methodology Applied
Scientific EffectMechanical compression: Compression

Data Source

PatentEP3560401B1Dust collector and vacuum cleaner having the same
Publication Date: 2020.12.16 LG ELECTRONICS INC
  • EP3560401B1 patent drawingFigure 1~2
  • EP3560401B1 patent drawingFigure 3
  • EP3560401B1 patent drawingFigure 4

AI summary

A dust collector disclosed herein includes a first dust storing unit to collect dust firstly-separated from air by a first cyclone, a second dust storing unit to collect fine dust secondly-separated from the air by second cyclones located above the first cyclone, a lower cover part coupled to a first dust container to form a bottom surface of the first dust storing unit and the second dust storing unit, and rotatable based on the hinge to simultaneously open the first and second dust storing units, such that the dust and the fine dust are simultaneously discharged, and a compression device rotatably connected to the lower cover part so as to rotate in a reciprocating manner to compress the dust collected in the first dust storing unit.