Porous Ceramic Atomizing Head for E-Cigarette Leakage Control

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Solution Overview

Problem

Existing electronic cigarettes face issues with liquid leakage and dry burning, leading to poor smoke taste due to the complex structure and low atomization efficiency of heating wires used to atomize e-liquid.

Innovation Solution

An atomizing head with a porous ceramic atomizing core and a conductive member for electrical connection, which absorbs e-liquid without leakage and heats it efficiently to produce smoke, featuring a simple structure and improved atomization efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heating wire is used to atomize e-liquid through cotton, then electrical connection is achieved, but liquid leakage and dry burning occur due to capillary infiltration principle

Engineering Contradiction:
Improveatomization reliabilityVSAvoidliquid leakage and dry burning
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent uses a porous ceramic atomizing core instead of cotton to absorb and conduct e-liquid. The porous structure provides controlled liquid transport through capillary action within the ceramic matrix, preventing both liquid leakage (by containing liquid within pores) and dry burning (by ensuring continuous liquid supply to heating areas).

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent employs a composite structure combining porous ceramic material with conductive elements. The ceramic provides liquid absorption and thermal stability, while embedded conductive materials (such as metal layers or conductive coatings) enable efficient electrical heating, creating a synergistic system that resolves the contradictions of liquid control and heat generation.

Inventive Principle:
Principle #40Composite materials

2Reliability

If heating wire with cotton is used for e-liquid atomization, then electrical connection is established, but structure becomes complicated and atomization efficiency decreases

Engineering Contradiction:
Improveelectrical connectionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into the atomizing core itself: the porous ceramic body simultaneously serves as the liquid absorption medium, the structural support, and the substrate for conductive heating elements. This integration eliminates the need for separate cotton layers and wiring arrangements, simplifying the overall structure while maintaining electrical connection reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The atomizing core is designed as a multi-functional component that performs liquid absorption, liquid distribution, structural support, and electrical conduction simultaneously. This universal design replaces the need for multiple specialized components (cotton for absorption, separate wiring for conduction), thereby reducing structural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Use of energy by stationary object

If heating wire method is used for e-liquid atomization, then electrical heating is achieved, but atomization efficiency is low

Engineering Contradiction:
Improveelectrical heatingVSAvoidatomization efficiency
Core Design Contradiction:
Use of energy by stationary objectVSProductivity

Solution Approach 1:

The porous ceramic structure provides a large internal surface area through its network of pores and channels. When electrical heating is applied, this extensive surface area enables rapid and uniform heating of e-liquid throughout the material volume, significantly enhancing atomization efficiency compared to traditional wire-based systems with limited surface contact.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent changes the physical parameters of the heating system by transitioning from a thin wire geometry to a volumetric porous structure. This parameter change increases the effective heating surface area by orders of magnitude, improving heat transfer efficiency and atomization performance while maintaining electrical connectivity through conductive materials embedded within the porous matrix.

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 solution effectively prevents liquid leakage and enhances the taste of smoke by using a porous ceramic atomizing core and conductive member, improving assembly efficiency and reducing production costs.

Implementation Method 1

the e-liquid is usually transferred to the heating wire through the cotton. This method uses the principle of capillary infiltration to store the e-liquid in the cotton

Methodology Applied
Scientific EffectCapillary infiltration: Capillary Action

Implementation Method 2

the conductive member generates heat when energized... the heating element has a certain resistance, and the heating element generates heat when energized

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

after the atomizing core heats and atomizes the e-liquid to form smoke

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentUS12035751B2Atomizing head, atomizer and electronic cigarette
Publication Date: 2024.07.16 CHANGZHOU PATENT ELECTRONICS TECH CO LTD
  • US12035751B2 patent drawing
  • US12035751B2 patent drawing
  • US12035751B2 patent drawing

AI summary

Disclosed are an atomizing head, an atomizer, and an electronic cigarette. The atomizing head includes a contacting member, an atomizing core and a core seat, wherein an atomizing cavity is formed in the core seat, the atomizing core is connected to the core seat, the atomizing core is a porous ceramic body, the atomizing core is provided with a conductive member, and the contacting member is in contact with the conductive member so as to realize an electrical connection between the contacting member and the atomizing core. The atomizing head, the atomizer and the electronic cigarette are easily assembled, thereby improving the assembly efficiency and reducing the production cost.