Moving Aerosol Substrate Induction Heating Without Combustion
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Solution Overview
Problem
Existing aerosolization methods for medicants and heat-not-burn devices face challenges such as structural changes to the medicant or tobacco constituents due to high temperatures, inefficient energy use, and the need for environmentally friendly and biodegradable consumables, along with issues of combustion and flavor profile imbalance.
Innovation Solution
A high-temperature, non-combusting inductive heating method using a consumable-containing package with a susceptor and encasement that minimizes air exposure, allowing for rapid heating and cooling, and a mechanism to incrementally heat segments of the consumable to prevent combustion and enhance flavor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high temperature heating is used to aerosolize medicants or tobacco constituents, then aerosol generation efficiency is improved, but structural changes occur to the medicant or tobacco constituents
Solution Approach 1:
The system uses periodic heating cycles where the susceptor is heated to high temperatures to generate aerosol, then allowed to cool down. This cyclic heating-cooling process enables sustained aerosol generation while preventing continuous exposure that would cause degradation. The controller activates and deactivates the induction heating element in repeated cycles, maintaining productivity while protecting constituent integrity.
Solution Approach 2:
A susceptor (electromagnetic susceptor) is introduced as an intermediary material between the induction heating element and the medicant/tobacco constituents. The susceptor absorbs electromagnetic energy and converts it to thermal energy, which then transfers to the consumable material. This intermediary approach allows high-temperature heating for efficient aerosol generation while the susceptor protects the constituents from direct exposure to the electromagnetic field and extreme heat.
2Productivity
If prolonged heating duration is used to ensure complete aerosolization, then aerosol delivery is improved, but risk of changing molecular or chemical structure increases
Solution Approach 1:
The system employs periodic heating cycles with controlled duration. The controller activates the induction heating element for specific time intervals sufficient to achieve complete aerosolization, then deactivates it to prevent overheating. This periodic approach ensures thorough aerosol delivery while limiting exposure time that could cause molecular or chemical degradation.
Solution Approach 2:
The system incorporates sensors (such as temperature sensors or aerosol detection sensors) that provide feedback to the controller about the heating process and aerosol generation status. Based on this feedback, the controller adjusts the heating duration and intensity in real-time, ensuring complete aerosolization is achieved without excessive heating that would cause structural changes to the constituents.
3Productivity
If traditional combustion method is used to aerosolize consumables, then aerosol generation is achieved, but combustion byproducts and internal fouling occur
Solution Approach 1:
The system replaces the traditional combustion-based aerosol generation mechanism with an electromagnetic induction heating system. The induction heating element generates electromagnetic fields that induce currents in the susceptor, which then heats the consumable material to produce aerosol without combustion. This substitution eliminates combustion byproducts and the associated internal fouling while maintaining effective aerosol generation capability.
4Reliability
If non-biodegradable materials are used in cartridge construction, then device durability and leak prevention are improved, but environmental friendliness deteriorates
Solution Approach 1:
The system changes the material parameters of the cartridge and consumable components from conventional non-biodegradable plastics to biodegradable materials that maintain sufficient mechanical properties. By selecting appropriate biodegradable polymers and optimizing their structural parameters (such as wall thickness, reinforcement structures, or composite formulations), the cartridge achieves adequate durability and leak prevention while being environmentally friendly and biodegradable.
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 method maintains the integrity of medicants and tobacco constituents by preventing structural changes, improves energy efficiency, and provides a satisfying user experience with a biodegradable consumable that reduces cleaning efforts and internal fouling.
Implementation Method 1
aerosol-producing device comprises an induction heating element to heat the susceptor
Implementation Method 2
high-temperature, non-combusting inductive heating method
Data Source
AI summary
A device for converting a consumable into an aerosol with high heat without burning the consumable using a moving aerosol-producing substrate to incrementally heat portions of the substrate to release the consumable from various portions of the substrate. The aerosol-producing substrate is placed in an aerosol-producing device in which a portion of the aerosol-producing substrate is surrounded by an induction heating element. The portion of the aerosol-producing substrate surrounded by the induction heating element can release consumable when the induction heating element is activated. A driver causes the aerosol-producing substrate to advance through the induction heating element causing another portion of the aerosol-producing substrate to enter the induction heating element, heating of which causes more release of the consumable.