Porous Ceramic Atomizing Core for E-Cigarette

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Solution Overview

Problem

Existing electronic cigarettes using glass fiber materials for liquid absorption pose health risks due to potential harmful effects on the human body.

Innovation Solution

An atomizing core made of porous ceramic with a cylindrical main body and an atomizing rod, integrated by sintering, which includes through holes and a heating wire wound around the rod to vaporize tobacco liquid, forming an aerosol without direct heat transfer to the liquid storage component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If glass fiber material is used for liquid absorption, then liquid absorption capability is improved, but health safety deteriorates due to harmful effects on human body

Engineering Contradiction:
Improveliquid absorption capabilityVSAvoidhealth safety
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent replaces glass fiber material with porous ceramic material for liquid absorption. The porous structure of the ceramic material provides effective liquid absorption capability while eliminating the health hazards associated with glass fiber materials.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent employs ceramic material as a composite alternative to traditional glass fiber material. This material substitution maintains the liquid absorption function while improving health safety by removing harmful components.

Inventive Principle:
Principle #40Composite materials

2Power

If heating wire directly contacts liquid storage component, then heating efficiency is improved, but liquid deterioration occurs due to direct heat transfer

Engineering Contradiction:
Improveheating efficiencyVSAvoidliquid quality
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent divides the heating system into separate components: the heating wire is wound around the atomizing rod rather than directly contacting the liquid storage component. This segmentation allows efficient heating of the atomizing rod while preventing direct heat transfer that would deteriorate the liquid in the storage component.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The atomizing rod serves as an intermediary between the heating wire and the liquid. The heating wire heats the atomizing rod, which then absorbs and vaporizes the liquid, preventing direct thermal contact between the heating wire and liquid storage component.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If liquid absorption rate is increased, then vaporization efficiency is improved, but liquid leakage increases

Engineering Contradiction:
Improvevaporization efficiencyVSAvoidliquid leakage
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The porous ceramic material provides controlled liquid absorption through its pore structure. By adjusting the pore size and distribution, the material achieves optimal liquid uptake rate that ensures efficient vaporization while preventing excessive absorption that would lead to leakage.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent optimizes the physical parameters of the porous ceramic material, such as pore size, porosity, and surface area, to control the liquid absorption rate. These parameter adjustments enable balanced liquid management for efficient vaporization without leakage.

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

The ceramic atomizing core effectively vaporizes tobacco liquid while preventing liquid deterioration and leakage, offering improved safety and control over liquid absorption rates through adjustable core size and hole density.

Implementation Method 1

The liquid absorbing component is configured for absorbing tobacco liquid from the liquid storing component via capillary action

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

The heating wire heats the tobacco liquid to vaporize

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 3

The main body and the atomizing rod are integrally formed by sintering porous ceramic

Methodology Applied
Scientific EffectSintering: Sintering

Data Source

PatentEP2979555B1Atomizing core and electronic cigarette having same
Publication Date: 2020.12.02 SHENZHEN FIRST UNION TECH CO LTD
  • EP2979555B1 patent drawingFigure 1~2
  • EP2979555B1 patent drawingFigure 3~5
  • EP2979555B1 patent drawingFigure 6

AI summary

An exemplary atomizing core includes a cylindrical main body and an atomizing rod. The cylindrical main body has a central axis. The atomizing rod extends from the main body along the central axis. The main body and the atomizing rod are both made of porous bodies. The main body defines a through hole along the central axis.