Inductive Susceptor Pouch Heating for Combustion-Free Aerosol Units
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Solution Overview
Problem
Traditional smoking articles suffer from issues such as scorching of wrapping material, production of undesirable gases like carbon monoxide and carbon dioxide, and poor aerosolization performance, while also being prone to combustion-related problems.
Innovation Solution
An aerosol delivery device with a removable consumable unit containing an ignitable heat source and aerosol precursor composition, utilizing an inductive heating assembly to heat the heat source and substrate material without significant combustion, featuring a susceptor pouch and inductor coil for controlled heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional combustion heating is used to vaporize tobacco materials, then heat generation is sufficient, but scorching of wrapping material and production of harmful combustion by-products (carbon monoxide, carbon dioxide) occur
Solution Approach 1:
The patent replaces the traditional mechanical/chemical combustion system with an electromagnetic induction heating system. The inductive heating assembly generates electromagnetic fields that directly heat the susceptor-containing heat source without combustion, eliminating harmful by-products like carbon monoxide and carbon dioxide while maintaining sufficient temperature for vaporization
Solution Approach 2:
The patent changes the heating mechanism from combustion-based thermal generation to induction-based electromagnetic heating. This parameter change allows precise control of heating temperature and eliminates the combustion reaction entirely, preventing the formation of harmful combustion by-products while achieving the required vaporization temperature
2Temperature
If traditional combustion heating is used, then high temperature is achieved, but scorching of paper wrapping material occurs
Solution Approach 1:
The patent substitutes combustion heating with induction heating, which provides more precise temperature control. The inductive heating assembly heats the susceptor-containing heat source to the required temperature without the uncontrolled high-temperature flames of combustion, preventing scorching of the paper wrapping material
Solution Approach 2:
The patent introduces a susceptor material as an intermediary between the induction heating assembly and the heat source. The susceptor absorbs electromagnetic energy and converts it to heat locally, allowing controlled temperature rise without direct exposure to extreme combustion temperatures that would scorch the wrapping material
3Reliability
If combustible heat sources are used, then reliable heat generation is achieved, but flavor delivery is degraded due to combustion-related problems
Solution Approach 1:
The patent replaces combustion-based heating with induction heating, eliminating the combustion reactions that degrade flavor compounds. The induction system provides reliable heat generation through electromagnetic fields while preserving the integrity of flavor-containing aerosol precursors by avoiding high-temperature oxidation and charring
Solution Approach 2:
The patent eliminates the harmful aspect of combustion (flavor degradation) while retaining the beneficial aspect (reliable heat generation). By using induction heating with susceptor materials, the system achieves consistent temperature control that reliably vaporizes aerosol precursors without the flavor-destroying effects of combustion
4Ease of operation
If reusable and replaceable components are implemented, then user convenience is improved, but device complexity increases
Solution Approach 1:
The patent divides the aerosol delivery device into separate reusable and replaceable components. The holder with the inductive heating assembly is reusable, while the consumable units containing heat sources and aerosol precursors are replaceable. This segmentation improves user convenience through easy replacement while managing complexity through modular design
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 device provides a user-friendly, reusable, and replaceable smoking experience that mimics traditional smoking rituals without substantial combustion, reducing unwanted gas production and enhancing aerosolization efficiency.
Implementation Method 1
an inductive heating assembly, wherein the heat source of the consumable unit is contained within a susceptor pouch, and wherein the inductive heating assembly is configured to heat the susceptor pouch to ignite the ignitable heat source
Implementation Method 2
a substrate material having an aerosol precursor composition configured to form an aerosol upon application of heat thereto
Data Source
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AI summary
The present disclosure is directed to an aerosol delivery device and a consumable unit (400) for use with a holder of an aerosol delivery device. In one example implementation, the consumable unit (400) comprises an ignitable heat source (408) and a substrate material (416) having an aerosol precursor composition configured to form an aerosol upon application of heat thereto. The heat source (408) of the consumable unit (400) is contained within a susceptor pouch (420), and the susceptor pouch (420) is configured to be heated by an inductive heating assembly to ignite the heat source (408). In some implementations, the susceptor pouch comprises the consumable unit. In other implementations, the substrate material is contained within a substrate container.