Hand Vacuum Cleaner Motor-Forward Layout for Improved Ergonomics

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Solution Overview

Problem

Existing hand vacuum cleaners lack ergonomic design, leading to suboptimal user experience and comfort during use.

Innovation Solution

The hand vacuum cleaner is designed with a unique configuration where the inlet axis of the dirty air inlet intersects the suction motor, and the cyclone chamber axis is parallel to the suction motor axis, with the suction motor positioned forward of the handle, allowing for improved ergonomics and a better hand feel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the suction motor is positioned in a conventional location, then the structural design is simplified, but the ergonomics and user comfort deteriorate

Engineering Contradiction:

ImproveergonomicsVSAvoidcomponent placement complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The inlet axis is positioned above the cyclone chamber and oriented horizontally, creating a three-dimensional arrangement where the inlet conduit axis intersects the suction motor in space. This spatial reconfiguration allows the suction motor to be positioned forward of the handle while maintaining proper airflow alignment, thereby improving ergonomics without oversimplifying the structural design.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the inlet axis is positioned above the cyclone chamber, then the ergonomics improve, but the airflow path complexity increases

Engineering Contradiction:

Improvehand feelVSAvoidairflow path configuration

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The inlet conduit is designed to directly intersect the suction motor, merging the airflow path with the motor housing structure. This integration eliminates the need for separate complex ducting while maintaining the beneficial horizontal inlet axis positioning above the cyclone chamber, thus improving hand feel without proportionally increasing airflow path complexity.

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

This configuration enhances the ergonomics of the hand vacuum cleaner, providing improved user comfort and usability by optimizing the placement of components for better grip and balance.

Implementation Method 1

a suction motor positioned forward of the handle

Methodology Applied

Scientific EffectPressure difference: Pressure Gradient

Implementation Method 2

a cyclone chamber having a cyclone axis parallel to the suction motor axis

Methodology Applied

Scientific EffectCyclone separation: Cyclone Separation

Implementation Method 3

cyclone chamber axis of rotation that extends vertically

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS12390062B2Hand carryable surface cleaning apparatus

Publication Date: 2025.08.19 OMACHRON INTELLECTUAL PROPERTY INC

AI summary

A hand vacuum cleaner has a cyclone having a cyclone axis of rotation that extends between the front and rear ends of the cyclone. A main body houses a suction motor. The suction motor is positioned at a lower end of the main body and forward of a battery pack provided at a lower end of a pistol grip handle.