Aerosol Heater Temperature Profiles for Puff-Responsive Control

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Solution Overview

Problem

Existing aerosol-generating devices fail to adjust temperature control based on the number and timing of vaping, leading to deviations from designed values and potential harmful substance generation.

Innovation Solution

An aerosol-generating device with a sensor unit to detect temperature and a processor to select a specific temperature profile from stored profiles, controlling heater power accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the aerosol-generating device uses a fixed temperature control method regardless of vaping frequency, then the device structure is simple, but the temperature in specific areas adjacent to the heater deviates from design values and harmful substances are generated

Engineering Contradiction:
Improvetemperature control systemVSAvoidharmful substance generation
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic temperature control by switching between multiple temperature profiles (first, second, and third profiles with different target temperatures) based on the detected number of puffs. The controller dynamically adjusts the heater operation mode according to puff count thresholds, transforming the static temperature control into a dynamic system that adapts to usage patterns, thereby preventing harmful substance generation while maintaining reasonable system complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms where the sensor unit continuously detects the number of puffs and feeds this information back to the controller. The controller then adjusts the temperature profile selection based on this feedback, creating a closed-loop control system that prevents harmful substance generation through real-time monitoring and adjustment, rather than relying on simple open-loop fixed temperature control

Inventive Principle:
Principle #23Feedback

2Object-affected harmful factors

If the device monitors temperature continuously and adjusts heating dynamically, then harmful substance generation is minimized, but the device complexity increases

Engineering Contradiction:
Improveharmful substance generationVSAvoidtemperature control system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent segments the temperature control into distinct profiles (first, second, third profiles) with different target temperatures and heating modes. Each profile corresponds to specific puff count ranges, dividing the continuous control problem into discrete segments. This segmentation approach enables effective harmful substance prevention through structured temperature management while keeping the control logic manageable and avoiding excessive system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes key parameters (target temperature, heating mode, power supply level) based on the detected number of puffs. The controller transitions between different parameter sets corresponding to different temperature profiles, enabling dynamic adjustment that prevents harmful substance generation. This parameter-based control strategy achieves effective temperature management without requiring overly complex control algorithms

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

Minimizes harmful substance generation by dynamically adjusting temperature based on real-time temperature readings, ensuring safer and more efficient heating.

Implementation Method 1

check a temperature of a specific area adjacent to the heater through the sensor unit

Methodology Applied
Scientific EffectTemperature sensing:

Implementation Method 2

control power supplied to the heater according to the determined specific temperature profile

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20260041167A1Aerosol-generating device
Publication Date: 2026.02.12 KT&G CO LTD
  • US20260041167A1 patent drawing
  • US20260041167A1 patent drawing
  • US20260041167A1 patent drawing

AI summary

An aerosol-generating device is disclosed. The aerosol-generating device according to various embodiments of the present invention is an aerosol-generating device including an insertion space into which an aerosol-generating article may be inserted, and may include: a housing; a heater; a sensor unit; a memory in which a plurality of temperature profiles are stored; and at least one processor configured to, when a signal for heating an aerosol-generating article inserted into the insertion space is detected, check a temperature of a specific area adjacent to the heater through the sensor unit, determine a specific temperature profile of the plurality of temperature profiles based on the checked temperature, and control power supplied to the heater according to the determined specific temperature profile.