Atomizer Airflow Guiding Surface for Noise Reduction

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Solution Overview

Problem

Electronic atomization devices suffer from poor airflow circulation and noise generation due to airflow passing through multiple corners within the atomizer's air inlet and outlet channels.

Innovation Solution

The atomizer design includes an airflow channel with at least one branch air channel and a main air channel, featuring an airflow guiding surface at their joint, where the angle between the guiding surface and the main air channel axis is an acute angle, reducing airflow deflection and noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If airflow passes through multiple corners in the air inlet and outlet channels, then the atomizer can be compact in size, but the airflow circulation becomes poor and loud noise is generated

Engineering Contradiction:
Improveatomizer sizeVSAvoidnoise generation
Core Design Contradiction:
Volume of moving objectVSObject-generated harmful factors

Solution Approach 1:

The patent applies curvature by designing rounded airflow guiding surfaces at the joints between branch air channels and main air channels, replacing sharp corners with curved transitions. This allows airflow to follow smooth curved paths rather than abrupt angular deflections, reducing turbulence and noise while maintaining the compact multi-branch channel structure for efficient air intake and output

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Volume of moving object

If airflow passes through multiple corners in the air inlet and outlet channels, then the atomizer can be compact in size, but the airflow circulation becomes poor

Engineering Contradiction:
Improveatomizer sizeVSAvoidairflow circulation
Core Design Contradiction:
Volume of moving objectVSSpeed

Solution Approach 1:

The curved airflow guiding surfaces enable smooth transitions at channel joints, allowing airflow to circulate efficiently through the compact multi-branch structure without abrupt deflections that would cause stagnation or poor circulation

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent optimizes the angle parameters of the airflow guiding surfaces, specifically designing the acute angle between the guiding surface and the main air channel axis to be within a specific range (30-60 degrees), which balances compact size with effective airflow circulation speed

Inventive Principle:
Principle #35Parameter changes

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 design enhances smooth airflow circulation and minimizes noise generation by maintaining a deflection angle less than 90°, improving the overall performance of the atomization process.

Implementation Method 1

an airflow guiding surface is arranged at a joint between the at least one branch air channel and the main air channel, and wherein an angle between the airflow guiding surface and an axis of the main air channel is an acute angle

Methodology Applied
Scientific EffectFluid flow guidance:

Data Source

PatentUS20250089791A1Atomizer and electronic atomization device
Publication Date: 2025.03.20 VERDEWELL INT HLDG LTD
  • US20250089791A1 patent drawing
  • US20250089791A1 patent drawing
  • US20250089791A1 patent drawing

AI summary

An atomizer includes: an aerosol-forming product having a receiving chamber formed inside, the receiving chamber receiving an aerosol-forming medium; a mouthpiece assembly mated with the aerosol-forming product; and an airflow channel comprising an air inlet channel and an air outlet channel respectively communicating with the receiving chamber. The airflow channel includes at least one branch air channel and a main air channel communicating with the at least one branch air channel. An airflow guiding surface is arranged at a joint between the at least one branch air channel and the main air channel. An angle between the airflow guiding surface and an axis of the main air channel is an acute angle.