Aerosol Device Heating Element Temperature Control

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Solution Overview

Problem

Aerosol generation devices face challenges in maintaining consistent vaping properties across consecutive vaping cycles, particularly when cycles are performed in quick succession, due to inadequate cooling of the heating element, leading to excessive temperature and altered vapor taste.

Innovation Solution

An aerosol generation device with a temperature sensor and controller that prevents power supply to the heating element until it reaches a predetermined activation temperature, ensuring consistent temperature for the first puff across cycles, and includes a heat-off phase to facilitate immediate reactivation without affecting user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the heater is allowed to operate continuously without sufficient cooling time between vaping cycles, then productivity is improved, but the temperature of the heating element becomes too high causing inconsistent vaping experience

Engineering Contradiction:

Improvevaping cycle frequencyVSAvoidheating element temperature

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The controller checks the temperature of the heating element before allowing power supply at activation time. If the temperature is above the predetermined threshold, the controller prevents power supply until the heating element has cooled down sufficiently. This preliminary temperature check ensures that even when users attempt rapid consecutive vaping cycles, the heating element temperature remains controlled and consistent vaping experience is maintained.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If power is supplied immediately at activation time regardless of heating element temperature, then ease of operation is improved, but the first puff temperature exceeds desirable values affecting vapor taste

Engineering Contradiction:

Improvedevice activation convenienceVSAvoidfirst puff temperature

Core Design Contradiction:

Ease of operationVSTemperature

Solution Approach 1:

The temperature sensor continuously monitors the heating element temperature and provides feedback to the controller. The controller uses this feedback to make real-time decisions about power supply. At activation time, if the temperature sensor indicates the heating element is above the predetermined temperature threshold, the controller blocks power supply. This feedback mechanism maintains ease of operation while preventing excessive first puff temperature, as the system automatically adjusts based on actual temperature conditions.

Inventive Principle:

Principle #23Feedback

3Stability of the object's composition

If the heater is prevented from operating when temperature is too high, then temperature consistency is improved, but loss of time occurs while waiting for cooling

Engineering Contradiction:

Improvevaping temperature consistencyVSAvoidcooling wait time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The system dynamically adjusts its operation based on real-time temperature conditions. Rather than imposing a fixed cooling wait time, the controller continuously monitors the heating element temperature and allows power supply as soon as the temperature drops below the predetermined threshold. This dynamic approach maintains temperature consistency while minimizing unnecessary waiting time, as the system is ready to operate immediately when conditions are suitable rather than adhering to a predetermined timeout period.

Inventive Principle:

Principle #15Dynamics

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 ensures consistent vaping experience by controlling the heating element's temperature, preventing excessive heat transfer and maintaining optimal vapor quality, even when cycles are initiated rapidly, thereby enhancing user satisfaction and device efficiency.

Implementation Method 1

a temperature sensor configured to measure the temperature of said heating element

Methodology Applied

Scientific EffectTemperature sensing:

Implementation Method 2

a heating element arranged for heating an aerosol substrate; power supplied from the energy supply to the heating element to heat up the heating element

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20230096771A1Aerosol Generation Device Providing Enhanced Vaping Experience

Publication Date: 2023.03.30 JT INTERNATIONAL SA

AI summary

The invention relates to an aerosol generation device including a heating element arranged for heating an aerosol substrate such as a tobacco stick; an energy supply configured to power said heating element; a temperature sensor configured to measure the temperature of the heating element; a controller configured to control, as soon as said aerosol generation device is turned on, power supplied from said energy supply to the heating element to heat up the heating element to a first temperature comprised within an operational temperature rangewherein power can only be supplied to the heating element at an activation time of said aerosol device when said aerosol device is turned on, if the temperature of the heating element is lower than a predetermined activation temperature.