Hand-guided cyclone vacuum cleaner

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Solution Overview

Problem

Hand-held cyclone vacuum cleaners require a large installation space due to multiple filter stages and lack accessibility for user maintenance.

Innovation Solution

A compact design with a drive unit arranged between the second and third filter stages, allowing the suction flow to flow around it, reducing spatial requirements and making all filter stages easily accessible for cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If multiple filter stages are implemented in a conventional arrangement, then effective particle separation is achieved, but installation space becomes excessively large

Engineering Contradiction:
Improveparticle separation effectivenessVSAvoidinstallation space
Core Design Contradiction:
Manufacturing precisionVSVolume of moving object

Solution Approach 1:

The drive unit is positioned within the flow path of the suction air stream, allowing the suction flow to flow around it. This nesting of the drive unit within the airflow path enables compact arrangement of multiple filter stages and drive unit in a small volume, resolving the contradiction between effective particle separation and installation space requirements

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The longitudinal axis of the first filter stage is aligned parallel to the longitudinal axis of the suction tube, creating a compact axial arrangement. This parallel alignment allows multiple filter stages to be arranged in a space-efficient configuration along the same axis, reducing the overall installation volume while maintaining separation effectiveness

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

2Ease of operation

If multiple filter stages are arranged for easy access, then user maintenance becomes simple, but device complexity increases

Engineering Contradiction:
Improvefilter accessibilityVSAvoidseparation unit structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The separation unit is divided into distinct filter stages (first, second, and third filter stages) that can be independently accessed and maintained. Each filter stage is positioned and configured to allow separate user access, enabling simple maintenance operations while managing device complexity through modular segmentation

Inventive Principle:
Principle #1Segmentation

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 enables a compact, effective separation unit with selective filtration and easy maintenance, optimizing space usage while ensuring efficient particle separation and dust collection.

Implementation Method 1

the suction flow in the separation unit creates a vortex flow, which functions to separate dust and dirt particles from the suction flow under the influence of gravity

Methodology Applied
Scientific EffectVortex flow: Vortex Ring

Implementation Method 2

handheld cyclone vacuum cleaner

Methodology Applied
Scientific EffectCyclone separation: Cyclone Separation

Data Source

PatentEP3906830B1Hand-guided cyclone vacuum cleaner
Publication Date: 2024.06.26 MIELE & CO KG
  • EP3906830B1 patent drawingFigure 1~3
  • EP3906830B1 patent drawingFigure 4~6
  • EP3906830B1 patent drawingFigure 7~9

AI summary

The invention relates to a hand-held cyclone vacuum cleaner comprising a separation unit for collecting vacuumed material, which includes a drive unit (5) for generating a suction flow, a first filter stage (6), a second filter stage (7) and a third filter stage (8); wherein the drive unit (5) is arranged downstream of the second filter stage (7) and upstream of the third filter stage (8) in a drive unit housing (15), wherein the drive unit (5) is surrounded by the suction flow generated during operation of the drive unit (5).