Hand-guided cyclone vacuum cleaner

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Solution Overview

Problem

Hand-held cyclone vacuum cleaners require a large installation space for multiple filter stages and lack accessibility for user maintenance, compromising compactness and separation efficiency.

Innovation Solution

A hand-held cyclone vacuum cleaner design with a separation container housing a first cyclone filter stage and a second pre-filter stage, and a drive unit container with a third central filter stage, arranged fluidically in sequence, allowing for compactness and easy accessibility for maintenance, with the second and third filter stages being structurally separate for enhanced separation performance and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If multiple filter stages are implemented in a compact arrangement, then the device size is reduced, but the accessibility for maintenance is worsened

Engineering Contradiction:
Improvedevice sizeVSAvoidaccessibility for maintenance
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The vacuum cleaner is divided into two separate containers: a separation container housing the first and second filter stages, and a drive unit container housing the third filter stage. This segmentation allows each container to be independently removed and maintained, improving accessibility while maintaining compact overall device size.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If the third filter stage is integrated into the separation container, then the device complexity is reduced, but the separation efficiency is worsened

Engineering Contradiction:
Improvestructural integrationVSAvoidseparation efficiency
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The third filter stage is separated from the separation container and placed in the drive unit container. This structural segmentation prevents interference with the cyclone separation process, maintaining high separation efficiency while the overall device remains compact through integrated container design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The third filter stage is extracted from the separation container and positioned in the drive unit container. This extraction ensures that the filter stages do not interfere with each other's function, particularly protecting the cyclone separation efficiency while maintaining compact device architecture.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If the filter stages are arranged in series within a single container, then the device complexity is reduced, but the installation space required is increased

Engineering Contradiction:
Improvecontainer configurationVSAvoidinstallation space
Core Design Contradiction:
Device complexityVSVolume of stationary object

Solution Approach 1:

The separation container and drive unit container are permanently connected to form an integrated vacuum cleaner system. This merging allows the three filter stages to be arranged in series across the two containers, achieving compact installation space while maintaining the required separation efficiency through proper spatial arrangement.

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 design achieves improved separation performance, easier maintenance, and increased stability by allowing independent removal and cleaning of filter stages, maintaining a compact device size while ensuring effective particle separation.

Implementation Method 1

a first filter stage having a cyclone generated during operation

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

a second filter stage having a pre-filter

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Implementation Method 3

a third filter stage having a central filter

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Data Source

PatentEP3906829B1Hand-guided cyclone vacuum cleaner
Publication Date: 2024.06.26 MIELE & CO KG
  • EP3906829B1 patent drawingFigure 1~3
  • EP3906829B1 patent drawingFigure 4~6
  • EP3906829B1 patent drawingFigure 7~9

AI summary

The invention relates to a handheld cyclone vacuum cleaner, comprising a collection container for collecting vacuumed material, which has a first and a second filter stage, wherein the first filter stage comprises a cyclone generated during operation and the second filter stage comprises a pre-filter, wherein the collection container has a longitudinal axis; a drive unit housing, which is arranged adjacent to the collection container and which comprises a drive unit for generating a suction flow and a third filter stage, wherein the third filter stage comprises a central filter, wherein the drive unit housing has a longitudinal axis; wherein the first filter stage, the second filter stage and the third filter stage are arranged one behind the other in the specified sequence in terms of flow characteristics;a suction pipe for guiding the suction flow during operation of the drive unit, wherein the suction pipe has a longitudinal axis, the longitudinal axis of the suction pipe being arranged parallel to the longitudinal axis of the separator container.