Atomizer Air Venting Structure for E-Liquid Leakage Control

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Solution Overview

Problem

Conventional atomizers suffer from e-liquid leakage and inefficient filling due to air ingress, leading to staining and potential heater burnout from pressure differences.

Innovation Solution

An atomizer design with integrated air inlets and vents that directly communicate with the atomizing channel, ensuring smooth airflow and e-liquid flow, and includes features like absorbers to prevent leakage and facilitate faster filling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If air inlet is provided for smoke flow, then smoke can be driven to mouthpiece, but condensed e-liquid leaks along the atomization channel causing staining

Engineering Contradiction:
Improvesmoke flowVSAvoide-liquid leakage
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The air inlet structure is segmented into multiple components: an air inlet channel for smoke flow, and a separate air vent channel for air circulation. This segmentation allows independent control of smoke delivery and air flow paths, preventing e-liquid from being carried along with the smoke stream while maintaining effective smoke delivery to the user.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If e-liquid tank is isolated from outside environment, then filling is simpler, but air cannot flow in causing pressure difference and heater burnout

Engineering Contradiction:
Improvetank structureVSAvoidheater safety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

An air vent channel acts as an intermediary element that connects the isolated e-liquid tank to the external environment. This intermediary air passage allows air to flow into the tank to equalize pressure differences, preventing heater burnout, while maintaining the overall isolation and simplicity of the tank structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If air vent is added to e-liquid tank, then filling efficiency improves, but e-liquid may leak through the vent

Engineering Contradiction:
Improvefilling efficiencyVSAvoide-liquid leakage
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The air vent channel is designed with specific local characteristics: it is positioned and dimensioned to allow air flow during filling while preventing e-liquid leakage. The channel's geometry and location provide selective permeability - allowing gas passage during normal operation while blocking liquid due to surface tension and flow dynamics.

Inventive Principle:
Principle #3Local quality

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

Prevents e-liquid staining, enhances filling efficiency, and reduces heater burnout risks by managing airflow and e-liquid contact, ensuring smooth operation.

Implementation Method 1

an atomizing channel in which a heating element is disposed to heat and atomize the e-liquid

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

heat and atomize the e-liquid

Methodology Applied
Scientific EffectAtomization:

Implementation Method 3

an absorber is disposed in the air vent so as to absorb the e-liquid remaining in the air vent

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentEP3970534B1atomizer
Publication Date: 2025.07.02 SHENZHEN EIGATE TECH CO LTD
  • EP3970534B1 patent drawingFigure 1
  • EP3970534B1 patent drawingFigure 2
  • EP3970534B1 patent drawingFigure 3

AI summary

An atomizer, including an end cover (4), the end cover including a main body. The main body includes an outer peripheral wall, and the outer peripheral wall includes an annular recess (41) for air circulation. The annular recess includes a wall (411) including an air inlet (15) and/or an air vent (18).