Hand Vacuum Cyclone Layout for Ergonomics and Airflow

Solution Overview

Problem

Existing hand vacuum cleaners lack ergonomic design, leading to discomfort during use and reduced airflow due to clogged pre-motor filters, which affects their efficiency and usability.

Innovation Solution

A hand vacuum cleaner design with a cyclone unit where the inlet conduit axis is parallel to the cyclone axis, positioned above the suction motor, and incorporating a longitudinally extending porous pre-motor filter media that allows air to travel upward to the suction motor, reducing the need for separate conduits and increasing the filter surface area, thereby improving ergonomics and airflow efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional hand vacuum cleaner design is used, then the device can perform basic cleaning functions, but the ergonomics are poor and airflow is reduced due to clogged pre-motor filters

Engineering Contradiction:

ImproveergonomicsVSAvoidairflow efficiency

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The inlet conduit axis is repositioned to be parallel to and above the cyclone axis, creating a three-dimensional spatial arrangement where the suction motor is positioned above the cyclone chamber. This dimensional reconfiguration allows air to flow upward through the porous filter media, preventing filter clogging while maintaining ergonomic handle design.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

A longitudinally extending porous pre-motor filter media is implemented that allows air to travel upward from the cyclone chamber to the suction motor. The porous structure enables continuous air flow through the filter without creating bottlenecks that would cause clogging, thereby maintaining airflow efficiency while protecting the motor.

Inventive Principle:

Principle #31Porous materials

2Ease of operation

If the inlet conduit axis is repositioned above the cyclone chamber, then ergonomics are improved, but the device complexity increases

Engineering Contradiction:

Improvehand feelVSAvoidcomponent arrangement

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The suction motor housing and cyclone chamber are merged into an integrated assembly where the motor is positioned directly above the cyclone chamber. The porous filter media serves dual functions as both a pre-motor filter and an air conduit, eliminating the need for separate filter housings and air passages, thereby reducing overall device complexity despite the repositioned inlet conduit.

Inventive Principle:

Principle #5Merging (Combining)

3Area of stationary object

If a longitudinally extending porous pre-motor filter media is used, then the filter surface area is increased, but the manufacturing complexity increases

Engineering Contradiction:

Improvefilter surface areaVSAvoidmanufacturing process

Core Design Contradiction:

Area of stationary objectVSEase of manufacture

Solution Approach 1:

A longitudinally extending porous pre-motor filter media is implemented that allows air to travel upward from the cyclone chamber to the suction motor. The porous structure enables continuous air flow through the filter without creating bottlenecks that would cause clogging, thereby maintaining airflow efficiency while protecting the motor.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The suction motor housing and cyclone chamber are merged into an integrated assembly where the motor is positioned directly above the cyclone chamber. The porous filter media serves dual functions as both a pre-motor filter and an air conduit, eliminating the need for separate filter housings and air passages, thereby reducing overall device complexity despite the repositioned inlet conduit.

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 enhances ergonomics, providing improved hand feel and extended usage time without significant airflow reduction due to clogged filters, while maintaining efficient cleaning performance.

Implementation Method 1

incorporating a longitudinally extending porous pre-motor filter media that allows air to travel upward to the suction motor

Methodology Applied

Scientific EffectPorous filtration: Porosity

Implementation Method 2

a cyclone unit comprising a cyclone chamber having a cyclone axis of rotation

Methodology Applied

Scientific EffectCyclone separation: Cyclone Separation

Data Source

PatentUS10085604B2Hand carryable surface cleaning apparatus

Publication Date: 2018.10.02 OMACHRON INTELLECTUAL PROPERTY INC

AI summary

A hand vacuum cleaner with a vertically extending flat filter is provided. A hand vacuum cleaner with a suction motor forward of the pre-motor filer is also provided.