Dual-Wick Atomizer Structure for Stable Aerosol Generation

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Solution Overview

Problem

Existing electronic atomization devices face inefficiencies in liquid substrate absorption and aerosol generation, particularly in the design of liquid guide elements and heating mechanisms, leading to suboptimal performance and potential leakage of liquid.

Innovation Solution

The atomizer incorporates a dual liquid guide element system with a first guide element covering the liquid storage cavity opening and a second guide element indirectly absorbing liquid from the first, coupled with a heating element to heat the liquid substrate for aerosol generation, and a holder providing structural support and air flow pathways.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single liquid guide element is used to absorb liquid substrate, then the structure is simple, but the liquid absorption efficiency is insufficient and leakage occurs

Engineering Contradiction:
Improveliquid absorption efficiencyVSAvoidliquid guide element structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The liquid guide element is divided into two separate elements: a first liquid guide element that absorbs liquid from the storage cavity, and a second liquid guide element that indirectly absorbs liquid from the first element. This segmentation improves liquid absorption efficiency and prevents leakage by distributing the absorption function across multiple specialized components.

Inventive Principle:
Principle #1Segmentation

2Productivity

If direct heating of liquid substrate is applied, then aerosol generation is efficient, but liquid distribution uniformity is poor

Engineering Contradiction:
Improveaerosol generation efficiencyVSAvoidliquid distribution uniformity
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The second liquid guide element acts as an intermediary between the first liquid guide element and the heating element. It indirectly absorbs liquid from the first element and delivers it to the heating element in a controlled manner, ensuring uniform liquid distribution while maintaining efficient aerosol generation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If liquid substrate is directly delivered to heating element, then the atomization process is simple, but liquid delivery control is insufficient

Engineering Contradiction:
Improveliquid delivery controlVSAvoidliquid guide system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The liquid delivery path is segmented into two distinct guide elements with different functions. The first element handles bulk liquid absorption from the storage cavity, while the second element provides controlled indirect absorption and delivery to the heating element, improving liquid delivery control.

Inventive Principle:
Principle #1Segmentation

4Volume of moving object

If a compact atomization assembly is used, then the device size is reduced, but air flow pathways are restricted

Engineering Contradiction:
Improvedevice sizeVSAvoidair flow rate
Core Design Contradiction:
Volume of moving objectVSSpeed

Solution Approach 1:

The second liquid guide element is positioned within or adjacent to the first liquid guide element, creating a nested arrangement. This compact configuration reduces overall device volume while the holder provides dedicated air flow pathways that maintain sufficient air flow rate for effective atomization.

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Enhances efficient liquid absorption and aerosol production, reduces leakage, and stabilizes liquid delivery to the atomization assembly, improving overall device performance and user experience.

Implementation Method 1

a first liquid guide element, arranged to cover the opening, and absorb and store the liquid substrate sourced from the liquid storage cavity

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the outer side surface is arranged to indirectly absorb the liquid substrate sourced from the liquid storage cavity from the first liquid guide element

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 3

configured to heat at least a part of the liquid substrate in the second liquid guide element to generate an aerosol

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP4699467A1Atomizer and electronic atomization device
Publication Date: 2026.02.25 SHENZHEN FIRST UNION TECH CO LTD
  • EP4699467A1 patent drawingFigure 1~2
  • EP4699467A1 patent drawingFigure 3~4
  • EP4699467A1 patent drawingFigure 5

AI summary

The present application provides an atomizer and an electronic atomization device. The atomizer comprises: a liquid storage cavity for storing a liquid matrix, the liquid storage cavity being provided with an opening; a first liquid guide element arranged to cover the opening and to absorb and store the liquid matrix from the liquid storage cavity; a second liquid guide element arranged to extend in the longitudinal direction of the atomizer and partially surrounded by the first liquid guide element so as to be located in the first liquid guide element, the second liquid guide element comprising an outer side surface and an inner side surface which are opposite to each other, and the outer side surface being arranged to indirectly absorb the liquid matrix from the first liquid guide element; and a heating element combined with the second liquid guide element and adjacent to the inner side surface, and used for heating at least part of the liquid matrix in the second liquid guide element to generate aerosol. According to the atomizer, the first liquid guide element covers the opening of the liquid storage cavity and absorbs the liquid matrix, and then the second liquid guide element partially located in the first liquid guide element indirectly absorbs the liquid matrix of the liquid storage cavity from the first liquid guide element and then heats and atomizes the liquid matrix to generate aerosol.