Dual Heating Elements Homogeneous Aerosol Substrate Control
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Solution Overview
Problem
Existing aerosol generating devices face issues with inhomogeneous heating of the aerosol generating substrate, leading to inefficient use of the substrate and potential deterioration of the aerosol taste.
Innovation Solution
The aerosol generating device incorporates two heating elements and a controller that operates them separately or simultaneously, allowing for optimal heat transfer and homogeneous heating of the substrate through customizable heating profiles based on temperature and operational modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single heating system is used to heat the aerosol generating substrate, then the device structure is simple, but the heating is inhomogeneous and substrate efficiency deteriorates
Solution Approach 1:
The heating system is divided into two separate heating elements (first heating element and second heating element) that independently heat different regions of the substrate. This segmentation allows each heating element to focus on specific zones, achieving homogeneous heating across the entire substrate surface while maintaining efficient substrate utilization.
2Productivity
If heat transfer is not optimal, then the device structure is simple, but substrate efficiency decreases and aerosol taste deteriorates
Solution Approach 1:
Different regions of the substrate receive optimized heating from respective heating elements based on their specific thermal requirements. The first heating element heats the first region while the second heating element heats the second region, allowing localized heat transfer optimization that maximizes substrate efficiency and maintains consistent aerosol quality across different zones.
3Adaptability or versatility
If multiple heating profiles are used for different operational states, then heating optimization is achieved, but control complexity increases
Solution Approach 1:
The controller dynamically selects and switches between different heating profiles (first heating profile, second heating profile, third heating profile) based on real-time operational states such as pre-heating phase, vaping phase, and temperature thresholds. This dynamic adaptation allows the system to optimize heating performance for different usage conditions while the controller manages the complexity of profile selection and switching.
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 ensures efficient and homogeneous heating of the aerosol generating substrate, preventing waste and maintaining the desired taste of the aerosol, while also allowing for rapid pre-heating and efficient operation during vaping sessions.
Implementation Method 1
heat the substrate by conduction, convection and/or radiation
Implementation Method 2
heat the substrate by conduction, convection and/or radiation
Implementation Method 3
heat the substrate by conduction, convection and/or radiation
Data Source
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AI summary
The present invention concerns an aerosol generating device configured to operate with an aerosol generating substrate and comprising: - a device body extending along a device axis; - a cup-shaped heating chamber (45) defining an open end (70) and at least two heating walls (74A, 74B), the heating chamber (45) being configured to receive a heater part of the aerosol generating substrate through the open end (70); - two heating elements (47A, 47B), each heating (47A, 47B) element being adjacent to a respective heating wall (74A, 74B) of the heating chamber (45); - a controller configured to operate separately each heating element (47A, 47B) with the same aerosol generating substrate, according to a heating profile chosen among a predetermined group of heating profiles.