Hair Dryer Diffuser With Light Irradiator And Flow Guide
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Solution Overview
Problem
Existing hair dryers lack an effective means to manage and care for the scalp and hair, particularly in terms of temperature control, air flow management, and simultaneous hair drying and scalp treatment.
Innovation Solution
A hair dryer design incorporating a diffuser with a gas outlet system that includes a guide cone and discharge guide ring to control air flow, combined with a removable diffuser head featuring massage protrusions, a light irradiator, and a light diffusion frame for uniform light distribution, allowing for adjustable air flow and scalp treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a diffuser includes multiple care devices (massage protrusions, bristles, light irradiator), then scalp and hair care effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple care functions (massage protrusions, bristles, light irradiator, discharge guide ring) into a single integrated diffuser assembly that attaches to the hair dryer. This merging approach allows all care devices to work simultaneously through one unified structure, improving overall care effectiveness while avoiding the need for multiple separate devices.
Solution Approach 2:
The diffuser is designed as a multi-functional device that performs hair drying, scalp massage, hair brushing, and light therapy simultaneously. The discharge guide ring provides both airflow control and structural support, while the front surface serves as both a light transmission surface and a mounting surface for care devices, demonstrating universal design principles.
2Reliability
If a light irradiator is added to the diffuser for scalp treatment, then hair and scalp health improvement is enhanced, but manufacturing complexity increases
Solution Approach 1:
The light irradiator is nested within the diffuser structure, with the light source positioned behind the front surface of the diffuser. The discharge guide ring is positioned between the light irradiator and the scalp, creating a nested arrangement where components are integrated into each other's spaces. This nesting approach allows the light irradiator to be incorporated without significantly increasing external dimensions or manufacturing complexity.
3Productivity
If the inner diameter of the diffuser increases from rear to front, then gas flow diffusion is improved, but structural stability may deteriorate
Solution Approach 1:
The diffuser features a curved, bell-shaped structure with a rounded front surface and smooth transitions throughout. This spherical/curved geometry naturally guides gas flow from the rear inlet through the expanding volume to the front discharge area, improving diffusion efficiency. The curved shape also provides structural strength through its arch-like form, maintaining stability despite the varying diameter.
4Manufacturing precision
If a guide cone and discharge guide ring are added to control air flow, then gas flow control precision is improved, but device complexity increases
Solution Approach 1:
The airflow control function is segmented into two distinct components: the guide cone positioned at the rear to direct incoming gas flow, and the discharge guide ring at the front to control outgoing flow distribution. This segmentation allows each component to be optimized for its specific function while maintaining overall system manageability and relatively simple manufacturing processes.
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 scalp and hair care by providing customizable air flow and temperature settings, along with uniform light distribution for improved hair and scalp health during drying.
Implementation Method 1
a light diffusion frame for uniform light distribution
Implementation Method 2
a gas outlet system that includes a guide cone and discharge guide ring to control air flow
Implementation Method 3
a heating element in the gas flow path
Implementation Method 4
a fan in the gas flow path
Data Source
AI summary
The diffuser includes a diffusing case having a rear side removably coupled to a main body of a hair dryer. Fluid discharged from the main body is introduced into the diffusing case through an inlet hole defined at the rear side and discharged from a front side of the diffusing case. A light irradiator is provided inside the diffusing case to irradiate light toward the front side of the diffusing case, and a light diffusion frame is provided in front of the light irradiator. The light irradiated from the light irradiator is diffused while forwardly penetrating the light diffusion frame.