Integrated Inductive Heater for Combustion-Free Aerosol Delivery
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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 and combustion by-products.
Innovation Solution
An aerosol delivery device with a removable cartridge containing an ignitable heat source and substrate material, utilizing an inductive heating assembly to heat the heat source and substrate independently, with a holder that includes a power source and inductive heating assembly to ignite and heat the substrate material without combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional combustion heating is used to vaporize tobacco, then heat generation is sufficient, but harmful combustion by-products like carbon monoxide and carbon dioxide are produced
Solution Approach 1:
The patent replaces the mechanical/chemical combustion system with an electromagnetic induction heating system. The induction heater uses electromagnetic fields to directly heat the tobacco material without combustion, eliminating harmful by-products like carbon monoxide and carbon dioxide while maintaining sufficient heating temperature for vaporization.
Solution Approach 2:
The patent changes the heating mechanism from combustion-based thermal processing to induction-based electromagnetic heating. This parameter change in the heating method allows achieving the required temperature for vaporization without the chemical reactions that produce harmful combustion by-products.
2Productivity
If high temperature combustion is used to generate aerosol, then vaporization efficiency is improved, but scorching of wrapping material occurs
Solution Approach 1:
The patent substitutes combustion heating with induction heating, which provides more precise and controlled thermal processing. The induction heater can achieve high temperatures for efficient aerosolization without the uncontrolled flame and excessive heat that cause scorching of the wrapping material.
Solution Approach 2:
The induction heating system applies heat locally and selectively to the tobacco material where it is needed for vaporization, rather than heating the entire structure including the wrapping material. This localized heating approach maintains high aerosolization efficiency while preventing scorching of non-target areas.
3Ease of operation
If reusable holder with power source is used, then device complexity increases, but ease of operation improves through replaceable cartridges
Solution Approach 1:
The patent divides the aerosol delivery system into two separate segments: a reusable holder containing the power source and control electronics, and replaceable cartridges containing the tobacco material and induction heater. This segmentation allows users to simply replace cartridges for continued use, improving ease of operation while managing device complexity through modular design.
Solution Approach 2:
The patent extracts the consumable components (tobacco material and induction heater) into separate replaceable cartridges, leaving only the power source and control systems in the reusable holder. This extraction allows users to operate the device without dealing with recharging or maintenance of the holder, significantly improving ease of operation.
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 with improved aerosolization and reduced combustion by-products, enhancing the smoking experience by avoiding significant combustion and minimizing harmful gas production.
Implementation Method 1
an inductive heating assembly configured to heat the heat source and heat the substrate independently
Data Source
AI summary
The present disclosure is directed to an aerosol delivery device and a holder for use with a removable substrate cartridge. The removable cartridge comprises an ignitable heat source and a substrate portion that includes a substrate material having an aerosol precursor composition configured to form an aerosol upon application of heat thereto. The holder includes a main body defining a receiving chamber configured to receive the substrate cartridge, a power source, and an inductive heating assembly. A least a portion of the inductive heating assembly is integral with the main body and is configured to ignite the ignitable heat source and to heat at least a portion of the substrate material.