Atomizer Capillary Trench Structure to Reduce Liquid Splattering

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Solution Overview

Problem

Existing electronic atomization devices suffer from excessive delivery of liquid substrates to the heating element, leading to splattering during heating.

Innovation Solution

The atomizer incorporates a capillary element with a first portion extending into a liquid storage cavity and a second portion delivering the liquid substrate, supported by a recessed support structure with trenches to manage liquid flow and prevent splattering, combined with a flexible liquid guide element to absorb and deliver the liquid substrate efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a liquid guide element delivers liquid substrate to the heating element, then aerosol generation is enabled, but excessive liquid delivery causes splattering during heating

Engineering Contradiction:
Improveaerosol generation efficiencyVSAvoidliquid splattering
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The capillary element acts as an intermediary between the liquid guide element and the heating element. It includes a first portion extending into the liquid storage cavity and a second portion delivering liquid to the heating element, with a support structure featuring trenches to manage liquid flow and prevent direct excessive delivery to the heating element

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The capillary element utilizes capillary action through its porous structure to control liquid substrate absorption and delivery. The porous material enables controlled liquid transport from the storage cavity to the heating element, preventing excessive delivery and splattering while maintaining efficient aerosol generation

Inventive Principle:
Principle #31Porous materials

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 effectively prevents liquid substrate splattering and ensures smooth delivery, maintaining efficient aerosol generation without excessive liquid delivery to the heating element.

Implementation Method 1

a capillary element, including a first portion coupled to the heating element and a second portion extending from the first portion toward the liquid storage cavity, where the second portion is constructed to absorb the liquid substrate from the liquid storage cavity and deliver the liquid substrate to the first portion

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

a heating element, configured to heat at least part of the liquid substrate to generate an aerosol

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP4403048B1Atomizer and electronic atomization device
Publication Date: 2026.03.04 SHENZHEN FIRST UNION TECH CO LTD
  • EP4403048B1 patent drawingFigure 1~2
  • EP4403048B1 patent drawingFigure 3
  • EP4403048B1 patent drawingFigure 4

AI summary

An atomizer and an electronic atomization device are provided. The atomizer (100, 100a, 100b, 100c, 100d) includes an outer housing with therein: a liquid storage cavity (12, 12a, 12b, 12c, 12d); a heating element (40, 40a, 40c, 40d, 40f), configured to heat at least part of a liquid substrate to generate an aerosol; a capillary element, including a first portion (31, 31a, 31f) coupled to the heating element (40, 40a, 40c, 40d, 40f) and a second portion (32, 32a, 32b) extending from the first portion (31, 31a, 31f) toward the liquid storage cavity (12, 12a, 12b, 12c, 12d), the second portion (32, 32a, 32b) to absorb a liquid substrate from the liquid storage cavity and deliver it to the first portion (31, 31a, 31f); and a support (70, 70a, 70c, 70d), configured to hold the capillary element, the support (70, 70a, 70c, 70d) including a recess to accommodate at least part of the capillary element, the support (70, 70a, 70c, 70d) provided with a first trench (722) formed on a recess surface, and the first trench (722) extends in parallel with the second portion (32, 32a, 32b) of the capillary element and is adjacent to an outer surface of the second portion (32, 32a, 32b). Through an extension length of the first trench (722), a liquid substrate on a surface of the capillary element can be buffered, thereby equalizing an amount of liquid substrates supplied to the heating element (40, 40a, 40c, 40d, 40f) and alleviating splattering of liquid substrates.