External Heater Elements for Aerosol Generating Material
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Solution Overview
Problem
Existing smoking alternatives, such as heat-not-burn products, face challenges in efficiently heating aerosol generating materials to produce an inhalable aerosol without combustion or pyrolysis.
Innovation Solution
The apparatus comprises a housing with a receptacle containing cavities for aerosol generating material and a heating arrangement with heater elements located externally to the cavities, allowing for efficient heating and generation of an inhalable aerosol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heater elements are placed inside the cavities, then heating efficiency is improved, but the risk of combustion and pyrolysis increases
Solution Approach 1:
The patent introduces an intermediary heating mechanism where heater elements are positioned outside the cavities and heat the aerosol generating material indirectly through the cavity walls. This mediator approach allows efficient heat transfer while preventing direct contact between the heater and the material, thereby eliminating combustion and pyrolysis risks.
Solution Approach 2:
The heating system is segmented into separate components: the heater elements are divided into multiple independent heating zones positioned externally, each corresponding to a specific cavity. This segmentation allows controlled heating of each cavity independently while maintaining safety through external positioning.
2Object-affected harmful factors
If heater elements are located externally of the cavities, then combustion and pyrolysis are prevented, but heating efficiency may be reduced
Solution Approach 1:
The cavity walls serve as thermal intermediaries that conduct heat from the external heater elements to the aerosol generating material. This intermediary structure maintains effective heat transfer while preserving the safety advantage of external heater positioning.
Solution Approach 2:
The patent applies local quality enhancement by positioning heater elements at specific external locations optimized for heat transfer to each cavity. The heating arrangement is customized for each cavity's geometry and material requirements, maximizing heating efficiency while maintaining external positioning.
3Productivity
If multiple cavities are used in the receptacle, then productivity is improved, but device complexity increases
Solution Approach 1:
The receptacle is designed as a universal multi-functional component that accommodates multiple cavities with standardized dimensions and heating arrangements. Each cavity can be independently heated while sharing common structural features, reducing overall device complexity despite increased productivity capacity.
Solution Approach 2:
The receptacle is segmented into multiple identical or standardized cavities, each capable of independent heating. This modular segmentation allows high productivity through parallel processing while minimizing complexity through repetition of standardized units.
4Speed
If heater elements are positioned close to the aerosol generating material, then heating speed is improved, but energy consumption increases
Solution Approach 1:
The external heater positioning with thermal intermediary cavity walls provides sufficient heat transfer speed while improving energy efficiency. The intermediary structure prevents direct heat loss to surrounding air and ensures heat is transferred directly to the aerosol generating material, reducing overall energy consumption.
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
This solution enables the efficient heating of aerosol generating materials to produce a consistent and comfortable inhalable aerosol, extending the life of the receptacle and reducing energy consumption.
Implementation Method 1
a heating arrangement comprising one or more heater elements for heating aerosol generating material contained in the one or more cavities
Implementation Method 2
heating aerosol generating material contained in the one or more cavities to generate an inhalable aerosol and/or gas
Data Source
AI summary
There is described an apparatus for heating an aerosol generating material to generate an inhalable aerosol and/or gas. The apparatus comprises a housing; a receptacle within the housing, the receptacle comprising one or more cavities, each cavity for containing an aerosol generating material; and a heating arrangement comprising one or more heater elements for heating aerosol generating material contained in the one or more cavities to generate an inhalable aerosol and/or gas. The one or more heater elements are located externally of the one or more cavities.