Induction Heating Aerosol Device with Flat Spiral Coils
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Solution Overview
Problem
Current alternatives to traditional smoking articles, such as 'heat not burn' products, face challenges in efficiently generating aerosol from aerosol-generating materials without combustion, requiring innovative solutions for effective aerosol production.
Innovation Solution
A non-combustible aerosol provision device and system utilizing a heating element heatable by a varying magnetic field, generated by a magnetic field generator with flat spiral coils, to produce aerosol from aerosol-generating materials like tobacco, which can be in the form of solids, liquids, or gels, without combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional heating methods are used to generate aerosol from aerosol-generating material, then aerosol production is achieved, but combustion may occur causing harmful effects
Solution Approach 1:
The patent replaces conventional resistive heating elements with induction heating technology, where a magnetic field generator (electromagnetic induction system) induces eddy currents in a heating element containing aerosol-generating material. This substitution of heating mechanism eliminates open flame and combustion while achieving efficient aerosol generation through controlled electromagnetic heating.
Solution Approach 2:
The patent employs induction heating with controlled magnetic field frequency and intensity to precisely regulate heating parameters. By adjusting the electromagnetic induction parameters (frequency, power level, heating duration), the system achieves optimal aerosol generation temperature without reaching combustion points, thus eliminating harmful combustion effects while maintaining productivity.
2Object-affected harmful factors
If induction heating with magnetic field generator is used, then combustion is avoided, but device complexity increases
Solution Approach 1:
The magnetic field generator serves multiple functions: it generates the electromagnetic field for induction heating, provides controlled heating without combustion, and can be integrated with control systems for precise temperature management. This multi-functionality justifies the added complexity by eliminating combustion harmful effects.
Solution Approach 2:
The heating element acts as an intermediary between the magnetic field generator and the aerosol-generating material. The magnetic field heats the heating element, which then transfers heat to the aerosol-generating material in a controlled manner, preventing direct combustion while enabling efficient aerosol production.
3Use of energy by moving object
If heating element is made from magnetic electrically-conductive material, then induction heating efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The heating element is constructed from composite materials that combine magnetic properties (for efficient induction heating) and electrical conductivity (for current flow). Examples include ferritic stainless steel or iron-based alloys with controlled composition. These composite materials optimize induction heating efficiency while managing manufacturing precision requirements through established metallurgical processes.
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 effectively generates aerosol from aerosol-generating materials, providing a viable alternative to traditional smoking by ensuring efficient heating and aerosol production without combustion, enhancing user experience and safety.
Implementation Method 1
a magnetic field generator for generating one or more varying magnetic fields that penetrate one or more respective longitudinal portions of the aerosol-generation zone
Implementation Method 2
a heating element comprising heating material that is heatable by penetration with a varying magnetic field generatable by the magnetic field generator to heat the aerosol-generation zone
Data Source
AI summary
A non-combustible aerosol provision device for generating aerosol from aerosol-generating material can include an aerosol-generation zone for receiving one or more consumables including aerosol-generating material, an aerosol generator configured to cause the aerosol to be generated from the one or more consumables including aerosol-generating material in the aerosol-generation zone, and an engagement region for engagement and disengagement with at least one user-insertable support for supporting the one or more consumables comprising aerosol-generating material in the aerosol-generation zone.