Resonant Susceptor Heating for Uniform Cigarette Temperature Zones
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Solution Overview
Problem
Existing aerosol generating systems fail to provide a consistent smoking experience by uniformly heating different areas of a cigarette at varying temperatures, leading to inconsistent user satisfaction.
Innovation Solution
An aerosol generating system with multiple susceptors having distinct resonance frequencies, a coil, and capacitors, controlled by a processor to selectively heat specific areas of a cigarette based on resonance frequency combinations, allowing for dynamic temperature adjustments during smoking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single susceptor is used to heat the cigarette, then the device structure is simple, but the temperature distribution is uniform and cannot provide varied heating zones
Solution Approach 1:
The single susceptor is divided into multiple segments (first susceptor and second susceptor) with different resonance frequencies. Each segment can be independently heated by adjusting the excitation frequency, enabling different heating zones along the cigarette while maintaining a relatively simple overall structure.
Solution Approach 2:
The heating system dynamically adjusts the resonance frequency of the susceptor segments based on real-time detection. The processor changes the excitation frequency to selectively heat different portions of the cigarette, providing dynamic temperature control without adding complex mechanical structures.
2Temperature
If multiple susceptors with different resonance frequencies are used, then different areas can be heated selectively, but the device complexity increases
Solution Approach 1:
A single coil structure serves multiple functions by generating electromagnetic fields at different frequencies to heat different susceptor segments. The coil acts as a universal heating element that can selectively excite any susceptor segment by adjusting the resonance frequency, eliminating the need for separate heating elements for each zone.
Solution Approach 2:
The system changes the resonance frequency parameter of the electromagnetic field to selectively heat different susceptor segments. By adjusting the frequency rather than changing the physical structure, the system achieves multiple heating zones without proportionally increasing device complexity.
3Adaptability or versatility
If the resonance frequency is changed during smoking, then different susceptor portions can be heated, but the control complexity increases
Solution Approach 1:
The system incorporates a detector that monitors the resonance frequency of the susceptor segments in real-time and provides feedback to the processor. Based on this feedback, the processor automatically adjusts the excitation frequency to maintain optimal heating conditions, enabling adaptive control without requiring complex manual intervention.
4Power
If current is applied at resonance frequency, then heating efficiency is maximized, but energy consumption increases
Solution Approach 1:
The system applies electromagnetic energy at resonance frequency only to the specific susceptor segment that requires heating at any given time, rather than heating all segments simultaneously. This partial action approach maintains high heating efficiency for the target zone while minimizing overall energy consumption by avoiding unnecessary heating of other segments.
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 system provides a consistent and satisfying smoking experience by dynamically changing the heated areas of a cigarette, ensuring uniform temperature profiles throughout the smoking operation.
Implementation Method 1
a coil configured to heat the plurality of susceptors
Implementation Method 2
a plurality of susceptors having different resonance frequencies and configured to heat different portions of a cigarette
Implementation Method 3
heat a susceptor corresponding to a resonance frequency according to the combination by applying current to the coil
Implementation Method 4
a plurality of susceptors having different resonance frequencies and configured to heat different portions of a cigarette
Data Source
AI summary
An aerosol generating system may include a plurality of susceptors having different resonance frequencies and configured to heat different portions of a cigarette accommodated in an aerosol generating device, a coil configured to heat the plurality of susceptors, a plurality of capacitors connected to the coil, and a processor configured to determine a combination of capacitors through which current applied to the coil is to pass from among the plurality of capacitors, and heat a susceptor corresponding to a resonance frequency according to the combination by applying current to the coil according to the combination.