Conical Heating Element for Aerosol Device Alignment

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Solution Overview

Problem

Conventional aerosol generating systems, such as e-cigarettes, often experience misconnections or misalignments between the heating element and the vaporizable material cartridge, leading to leakage of vaporizable material and inefficient heating.

Innovation Solution

The system employs a conically shaped heating element and a corresponding conically shaped alignment element in the cartridge, ensuring automatic alignment and adjustment, thereby preventing leakage and ensuring efficient heating and aerosol generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional heating element and cartridge connection is used, then the device structure is simple, but misconnections or misalignments occur leading to leakage of vaporizable material

Engineering Contradiction:
Improveconnection alignmentVSAvoidheating element structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The heating element employs a conical shape with a sloped surface that complements the conical cavity in the cartridge. This curved geometric design enables automatic self-alignment when the cartridge is inserted, ensuring proper contact between the heating element and the vaporizable material while preventing misconnection and leakage.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Productivity

If a conventional heating element is used, then the manufacturing process is simple, but inefficient heating occurs due to improper contacting

Engineering Contradiction:
Improveheating efficiencyVSAvoidheating element fabrication
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The conical geometry with a sloped surface allows the heating element to make optimal contact with the vaporizable material throughout the cartridge cavity. This curved design ensures efficient heat transfer across the entire contact surface, improving heating efficiency while maintaining manufacturability through conventional forming processes.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Reliability

If a conventional heating element is used, then the device structure is simple, but leakage of vaporizable material occurs from the capsule

Engineering Contradiction:
Improvecapsule sealingVSAvoidcapsule and heating element configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The conical heating element with its sloped surface fits precisely into the conical cavity of the cartridge, creating a self-sealing interface. This curved geometric配合 ensures that the capsule is properly contained and sealed during insertion, preventing leakage of vaporizable material while maintaining a relatively simple overall device structure.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

This configuration ensures proper contacting of the capsule to the heating surface, reduces leakage of vaporizable material, and facilitates gradual heating along the entire surface of the heating element, resulting in more efficient aerosol generation.

Implementation Method 1

use a resistance heating element to heat and atomize a liquid containing nicotine and/or flavorants

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

heat and atomize a liquid containing nicotine and/or flavorants to produce an aerosol

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4156996B1Conical heating element for electronic aerosol provision system
Publication Date: 2025.02.19 JT INTERNATIONAL SA
  • EP4156996B1 patent drawingFigure 1
  • EP4156996B1 patent drawingFigure 2~3
  • EP4156996B1 patent drawingFigure 4~5

AI summary

An aerosol generating device (001) comprises a conically shaped heating element (300) configured to generate aerosol by evaporating a vaporizable material (200) on a convex slanted surface, and a heat source (320) configured to be positioned inside the conically shaped heating element, and configured to provide a heat gradient when in use along the convex slanted surface.