Single-Heater Aerosol Generation for Solid and Liquid Materials

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Solution Overview

Problem

Existing aerosol generating devices face challenges in providing both a unique taste and a large amount of aerosol particles for inhalation due to the use of multiple heaters, which complicates the device's structure, operation, and increases costs.

Innovation Solution

An aerosol generating device with a single heater capable of heating materials with different phases (solid and liquid) to produce distinct aerosols, allowing for a unique taste and increased aerosol production without the need for multiple heaters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple heaters are used to heat materials with different phases, then both solid phase and liquid phase materials can be heated, but the device size increases and structure becomes complicated

Engineering Contradiction:

Improveability to heat different phase materialsVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple heating functions into a single heater that can heat both solid phase tobacco material and liquid phase carrier simultaneously. The heater is designed with a heating portion that contacts the tobacco rod and a liquid carrier supply portion, allowing one heater to perform what previously required multiple separate heating elements, thereby reducing device complexity while maintaining the ability to heat different phase materials

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single heater is designed to serve multiple functions: heating solid phase tobacco material and heating liquid phase carrier material. This multi-functional heater eliminates the need for separate heating elements for different phases, reducing the number of components and simplifying the overall device structure while maintaining versatility in handling different material phases

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple heaters are used to heat materials with different phases, then both solid phase and liquid phase materials can be heated, but manufacturing cost increases

Engineering Contradiction:

Improveability to heat different phase materialsVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple heating functions into a single heater assembly, reducing the number of components that need to be manufactured and assembled. This consolidation lowers manufacturing costs by eliminating redundant parts while maintaining the capability to heat both solid and liquid phase materials through the unified heater design

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If a single heater is used to heat materials with different phases, then device size is reduced and structure is simplified, but it is difficult to heat materials with different phases effectively

Engineering Contradiction:

Improvedevice structureVSAvoidability to heat different phase materials

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The heater is designed with different heating portions optimized for different material phases: a first heating portion for solid phase tobacco material and a second heating portion for liquid phase carrier. This local differentiation within the single heater allows effective heating of different phases while maintaining overall device simplicity and compact size

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The single heater is segmented into multiple heating portions, each optimized for specific material phases. The heating element is divided into a tobacco heating portion and a liquid carrier heating portion, allowing the single heater to effectively handle different thermal requirements of solid and liquid materials through functional segmentation

Inventive Principle:

Principle #1Segmentation

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 device achieves enhanced performance by generating two types of aerosols simultaneously, providing a unique taste and a large amount of aerosol particles while reducing device size and manufacturing costs.

Implementation Method 1

a heater for heating a first material having a solid phase and a second material having a liquid phase

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

as the heater is operated, a first aerosol generated from the first material and a second aerosol generated from the second material may be released

Methodology Applied

Scientific EffectEvaporation: Evaporation

Data Source

PatentEP3818863B1Apparatus for generating aerosols comprising heater for heating materials having different phases from each other

Publication Date: 2026.01.28 KT&G CO LTD

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AI summary

Provided is an aerosol generating device comprising: a heater for heating a first material a solid phase and a second material in a liquid phase; and a controller for controlling power supplied to the heater, wherein as the heater is powered, a first aerosol generated from the first material and a second aerosol generated from the second material are released.