Movable Atomizer Core Structure to Prevent E-Liquid Corrosion

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Solution Overview

Problem

Conventional electronic cigarettes suffer from e-liquid contacting the atomizer, leading to corrosion or oxidation of the heating element, reducing its lifespan and affecting vapor taste and user health.

Innovation Solution

An atomizer design that separates the e-liquid from the atomizing core when not in use, with the core moving between positions to control e-liquid flow and incorporating seals and positioning parts to prevent leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the atomizing core remains stationary with e-liquid inlet inside the cartridge, then e-liquid flows smoothly during use, but the heating element corrodes or oxidizes due to continuous e-liquid contact

Engineering Contradiction:
Improveheating element lifespanVSAvoidatomizer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The atomizing core is designed to be movable rather than stationary, allowing it to dynamically change position between retraction (outside cartridge) and insertion (inside cartridge) states. This dynamic configuration enables the system to prevent corrosion during storage while ensuring proper e-liquid flow during use, resolving the contradiction between heating element lifespan and device simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The atomizing core is extracted from the cartridge during non-use periods, physically separating it from the e-liquid reservoir. This extraction prevents continuous contact between the heating element and e-liquid, thereby preventing corrosion and oxidation, while allowing the core to be reinserted when needed for vaporization.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the atomizing core is moved between positions, then e-liquid contact with heating element is prevented, but the device requires additional positioning mechanisms

Engineering Contradiction:
Improveheating element lifespanVSAvoidpositioning mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The atomizing core utilizes its own weight and the elastic recovery force of the sealing ring to automatically retract outside the cartridge when not in use, without requiring external actuation mechanisms. The sealing ring's elasticity provides the restoring force needed for automatic positioning, simplifying the overall device structure while maintaining reliable corrosion prevention.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The sealing ring acts as an intermediary element that provides both sealing function and positioning function. Its elastic properties enable it to push the atomizing core outward during storage while allowing inward movement during use, serving as a mechanical mediator that reduces the need for complex positioning mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the atomizing core retracts outside the cartridge, then corrosion is prevented, but e-liquid leakage may occur during movement

Engineering Contradiction:
Improveheating element protectionVSAvoide-liquid leakage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The sealing ring serves as a mediator between the atomizing core and the cartridge opening, providing a reliable seal during both retraction and insertion movements. Its elastic deformation capability allows it to maintain sealing contact throughout the movement cycle, preventing e-liquid leakage while enabling the corrosion-preventing retraction motion.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sealing ring is implemented as a flexible elastic component that can deform to accommodate the movement of the atomizing core. This flexibility allows the seal to maintain contact and prevent leakage during dynamic operations, while the elastic recovery force aids in automatically retracting the core outside the cartridge during storage.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP4212031B1Atomizer, and electronic cigarette comprising atomizer
Publication Date: 2025.12.31 SHENZHEN EIGATE TECH CO LTD
  • EP4212031B1 patent drawingFigure 1
  • EP4212031B1 patent drawingFigure 2
  • EP4212031B1 patent drawingFigure 3

AI summary

Provided are an atomizer and an electronic cigarette comprising the atomizer. The atomizer comprises: a liquid storage chamber, comprising a liquid storage cavity for storing e-liquid; a liquid storage chamber base, arranged at the bottom of the liquid storage chamber; and an atomization core, provided with at least one liquid inlet hole. The atomization core is configured to be able to move from a first position to a second position. At the first position, the at least one liquid inlet hole is positioned outside the liquid storage chamber, and at the second position, the at least one liquid inlet hole is positioned inside the liquid storage chamber.