Hair Styling Attachment Airflow Control via Movable Member

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Solution Overview

Problem

Conventional hot air styling devices lack efficient airflow control mechanisms, leading to inconsistent air distribution and increased noise levels during use.

Innovation Solution

The attachment features a casing with air inlets and a hair engaging member that moves between two positions, creating distinct airflow outlets. This design, combined with internal airflow directing means such as vanes and baffles, optimizes airflow distribution and minimizes turbulence.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single airflow outlet is used in conventional hot air styling devices, then the device structure is simple, but the airflow distribution is inconsistent and noise levels are high

Engineering Contradiction:

Improveairflow distribution consistencyVSAvoidairflow control mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The single airflow outlet is segmented into multiple airflow outlets (first airflow outlet and second airflow outlet) positioned at different locations. This segmentation allows the airflow to be distributed more evenly across different zones, improving airflow distribution consistency while managing the complexity through a modular design where each outlet can be independently controlled

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs movable casings that can change position to dynamically open or close different airflow outlets. This dynamic mechanism allows the device to adapt airflow distribution to different styling needs, improving consistency across various operating conditions while the mechanical movement provides an intuitive control interface

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If airflow outlets are positioned close together, then the device structure is compact, but turbulence increases and noise levels rise

Engineering Contradiction:

Improvenoise levelVSAvoidattachment width

Core Design Contradiction:

Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The first and second airflow outlets are positioned asymmetrically at different locations rather than symmetrically close together. This asymmetric arrangement allows each outlet to discharge airflow in different directions and zones, reducing interference between airflow streams, minimizing turbulence, and lowering noise levels while maintaining a compact overall device footprint

Inventive Principle:

Principle #4Asymmetry

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 enhances airflow consistency and reduces noise by ensuring even airflow distribution and parallel airstreams, improving the overall performance and user experience of the hot air styling device.

Implementation Method 1

The hair engaging member is adapted to move in a rocking movement, relative to the casing

Methodology Applied

Scientific EffectRocking movement:

Implementation Method 2

internal airflow directing means positioned within the casing to direct air towards the first airflow outlet and the second airflow outlet

Methodology Applied

Scientific EffectFluid flow direction:

Data Source

PatentUS12295472B2Attachment for a handheld appliance

Publication Date: 2025.05.13 DYSON TECH LTD

AI summary

An attachment includes a casing having an air inlet for receiving airflow from a hair styling apparatus, a hair engaging member supported by the casing, an airflow outlet between the casing and the hair engaging member and shaped to direct air over an external surface of the hair engaging member and airflow guiding means extending over the external surface of the hair engaging member.