Induction Vapour Inhaler Heating for Fast Start-Up Without Charring

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional electronic vapour inhalers using non-liquid flavour-release media face challenges in achieving rapid start-up and optimal flavour characteristics due to the high thermal mass of resistance heating elements, leading to unacceptably long start-up times and potential charring or burning of the flavour medium.

Innovation Solution

The use of an induction heating arrangement with an induction coil generating an alternating electromagnetic field to heat an induction heatable element, which in turn rapidly heats a non-liquid flavour-release medium through pulsed heating and cooling, avoiding overheating and ensuring optimal vapour characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a resistance heating element with high thermal mass is used to heat a non-liquid flavour-release medium, then the device can provide improved flavour characteristics, but the start-up time becomes unacceptably long

Engineering Contradiction:

Improveflavour characteristicsVSAvoidstart-up time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent replaces the conventional resistance heating element with an induction heating system. Induction heating uses electromagnetic fields to directly heat the flavour-release medium through electromagnetic induction, eliminating the need for thermal conduction through a high thermal mass heating element. This substitution of heating mechanism dramatically reduces start-up time while maintaining the ability to achieve optimal heating temperatures for flavour delivery.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the heating parameters by using induction heating which allows for rapid temperature adjustment and precise control. The induction heating system can quickly ramp up to operating temperature and respond dynamically to user activation, changing the thermal response characteristics from slow (resistance heating) to rapid (induction heating) while maintaining controlled temperature profiles for optimal flavour release.

Inventive Principle:

Principle #35Parameter changes

2Speed

If the heating element temperature is raised close to combustion temperature for rapid heating, then start-up time is reduced, but charring and burning of the flavour medium occurs

Engineering Contradiction:

Improveheating speedVSAvoidcharring and burning

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The induction heating system incorporates feedback control mechanisms that monitor temperature and adjust heating power in real-time. This feedback control allows the system to rapidly heat the flavour-release medium to optimal temperatures while preventing overheating that would cause charring or burning. The system can dynamically adjust the electromagnetic field intensity to maintain temperature within the safe operating range.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The induction heating system uses periodic or pulsed heating cycles rather than continuous high-temperature heating. By applying electromagnetic energy in controlled pulses, the system achieves rapid heating during the 'on' periods while allowing cooling during 'off' periods, preventing temperature from reaching combustion levels that would cause charring or burning of the flavour medium.

Inventive Principle:

Principle #19Periodic action

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 approach significantly reduces the start-up time of the electronic vapour inhaler, allowing for rapid heating of the non-liquid flavour-release medium to an optimal temperature range without charring or burning, thereby enhancing flavour and aroma delivery.

Implementation Method 1

an induction heating arrangement, the induction heating arrangement comprising an induction coil for generating an alternating electromagnetic field to heat an induction heatable element and thereby heat a non-liquid flavour-release medium

Methodology Applied

Scientific EffectInduction heating: Induction Heating

Implementation Method 2

induction coil for generating an alternating electromagnetic field

Methodology Applied

Scientific EffectElectromagnetic field: Electromagnetic Induction

Implementation Method 3

intermittently energising the induction coil to generate an intermittent alternating electromagnetic field which provides pulsed heating and cooling of the induction heatable element

Methodology Applied

Scientific EffectPulsed heating and cooling:

Data Source

PatentUS20250040610A1Method For Operating An Electronic Vapour Inhaler

Publication Date: 2025.02.06 JT INTERNATIONAL SA

AI summary

A method is provided for operating an electronic vapour inhaler comprising an induction heating arrangement, the induction heating arrangement comprising an induction coil for generating an alternating electromagnetic field to heat an induction heatable element and thereby heat a non-liquid flavour-release medium. The method comprises intermittently energising the induction coil to generate an intermittent alternating electromagnetic field which provides pulsed heating and cooling of the induction heatable element.