Hair Dryer Diffuser Guide Frame for Uniform Wide Airflow
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Solution Overview
Problem
Existing hair dryers lack efficient gas flow dispersion and structural stability, with diffusers failing to provide uniform and wide gas flow to the user while maintaining stability and ease of assembly.
Innovation Solution
A diffuser with a guide frame that disperses gas from multiple outlets, featuring a diffusing case with increasing inner diameter and a guide frame that directs gas flow through first and second paths, enhancing uniformity and cross-sectional area, and includes a discharge cover with massage protrusions for user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a simple gas outlet is used, then the device structure is simple, but the gas flow uniformity and dispersion are insufficient
Solution Approach 1:
The gas outlet is divided into multiple separate outlets (first gas outlet and second gas outlet) positioned at different locations. The diffuser is segmented into multiple functional regions including a guide frame with first and second flow paths, a diffusion portion, and a discharge cover with multiple discharge holes. This segmentation allows independent optimization of each component to achieve uniform gas flow distribution while maintaining manufacturing simplicity.
2Area of stationary object
If the gas outlet area is increased, then the gas flow cross-sectional area is widened, but the gas flow uniformity decreases
Solution Approach 1:
Different regions of the diffuser are designed with different local characteristics to optimize gas flow. The guide frame includes a first flow path with a first discharge hole and a second flow path with a second discharge hole, creating localized flow patterns. The diffusion portion has a specific geometry that locally expands and mixes the gas flow. The discharge cover has multiple discharge holes arranged in a specific pattern. This local quality variation ensures uniform gas distribution across the entire outlet area.
3Ease of operation
If multiple separate gas outlets are used, then the gas dispersion is improved, but the structural stability and assembly complexity increase
Solution Approach 1:
Multiple functional components are merged into a single integrated diffuser assembly. The guide frame, diffusion portion, and discharge cover are combined in a unified structure that can be manufactured as one piece or pre-assembled unit. The guide frame is positioned within the diffuser body, and the discharge cover is integrated with the diffuser outlet, creating a stable, pre-configured assembly that simplifies installation while maintaining multiple gas flow paths for improved dispersion.
4Area of stationary object
If the diffuser inner diameter increases forwardly, then the gas flow cross-sectional area is widened, but the structural stability decreases
Solution Approach 1:
The diffuser employs curved surfaces and rounded transitions instead of sharp angles to maintain structural integrity. The diffusion portion features a curved geometry that gradually expands the flow area. The guide frame and discharge cover use rounded edges and smooth transitions to distribute stress evenly. This curved design allows the inner diameter to increase forwardly for wider gas flow while maintaining structural stability through distributed load paths and reduced stress concentrations.
Data Source
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AI summary
A diffuser and a hair dryer including the same are disclosed. A diffuser according to an embodiment of the present disclosure includes a diffusing case having a rear side removably coupled to a main body of a hair dryer, wherein gas discharged from the main body is introduced into the diffusing case through a gas inlet hole defined at the rear side, wherein the gas introduced into the diffusing case is discharged from a front side of the diffusing case, and wherein an inner diameter of the diffusing case increases forwardly, and a guide frame disposed inside the diffusing case to guide flow of the gas introduced through the gas inlet hole, wherein the guide frame includes a diffusion portion disposed to face the gas inlet hole to diffuse the gas introduced through the gas inlet hole.