Inductive Aerosol Cartridge Heating to Avoid Scorching and Harmful Gases
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Solution Overview
Problem
Traditional smoking articles suffer from issues such as scorching of wrapping material, production of undesirable gases, and poor aerosolization, leading to a diminished smoking experience and altered flavors.
Innovation Solution
An aerosol delivery device with a removable cartridge containing an aerosol precursor composition, a liquid transport element, and a susceptor heated by an inductive heating system, allowing for easy use and reusable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional smoking articles use combustion to heat tobacco, then high temperature is achieved for vaporization, but scorching of wrapping material and production of harmful gases occur
Solution Approach 1:
The patent replaces the mechanical/chemical combustion system with an electromagnetic induction heating system. The induction heater generates electromagnetic fields that directly induce currents in the susceptor, converting electromagnetic energy to thermal energy without combustion. This eliminates harmful combustion byproducts while achieving the necessary heating temperature for vaporization.
Solution Approach 2:
The susceptor acts as an intermediary component between the induction heater and the tobacco material. The susceptor absorbs electromagnetic energy and converts it to heat, which is then transferred to the tobacco. This intermediary approach allows precise temperature control and prevents direct exposure of wrapping materials to extreme combustion temperatures, avoiding scorching and harmful gas production.
2Ease of operation
If reusable heating devices are used with replaceable cartridges, then ease of use and cost-effectiveness improve, but device complexity increases
Solution Approach 1:
The device is divided into two separate segments: a reusable holder containing the induction heating system and replaceable cartridges containing the tobacco material and susceptor. This segmentation allows users to simply replace cartridges instead of dealing with complex cleaning or maintenance of the heating system, improving ease of use while managing device complexity through modular design.
Solution Approach 2:
The cartridge is designed as a disposable component that contains all consumable elements (tobacco, susceptor, wrapping material). After use, the entire cartridge is discarded and replaced, eliminating the need for users to manage complex maintenance procedures. The reusable holder contains the expensive induction heating system, while the disposable cartridge simplifies 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 smoking experience similar to traditional cigarettes without combustion, reducing scorching and gas production, while ensuring effective aerosolization and ease of use through replaceable cartridges.
Implementation Method 1
a susceptor (420) having an active portion around which at least the second end of the liquid transport element (410) extends, at least the active portion of the susceptor (420) being arranged to heat the second end of the liquid transport element (410) and thereby heat the aerosol precursor composition (416)
Implementation Method 2
An inductively heated cartridge for use with a holder comprising a main body defining a receiving chamber configured to receive the cartridge
Data Source
AI summary
The present disclosure is directed to an aerosol delivery device and a holder for use with a removable cartridge. The holder includes a main body defining a receiving chamber configured to receive the cartridge, and a resonant transmitter located proximate at least a portion of the receiving chamber. The removable cartridge includes a reservoir containing an aerosol precursor composition, a liquid transport element, and a susceptor having an active portion around which at least a second end of the liquid transport element extends, at least the active portion of the susceptor being arranged to heat the second end of the liquid transport element and thereby heat aerosol precursor composition therein to form the aerosol. Opposing ends of the susceptor circumferentially and axially position the active portion of the susceptor within the cartridge.