Resonant Circuit for Aerosol Generating System
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Solution Overview
Problem
Existing aerosol generating systems face challenges in efficiently heating aerosol generating materials without combustion, particularly in maintaining optimal resonant frequency for efficient inductive heating across varying susceptor arrangements.
Innovation Solution
A resonant circuit comprising an inductive element and a capacitive element, with a switching arrangement that alternates between two states to maintain a varying current at the resonant frequency, ensuring efficient inductive heating of the susceptor arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a resonant circuit is used for inductive heating of susceptor arrangements, then heating efficiency is improved, but the circuit requires external controllers to maintain resonant frequency across varying susceptor arrangements
Solution Approach 1:
The resonant circuit is designed to automatically adjust and maintain its resonant frequency in response to changes in susceptor arrangement without requiring external controllers. The circuit self-regulates by detecting frequency deviations and adjusting its operating parameters accordingly, thereby maintaining optimal heating efficiency while eliminating complex control systems.
Solution Approach 2:
The resonant circuit incorporates inherent feedback mechanisms that monitor the resonant frequency and automatically adjust circuit parameters to maintain resonance. This feedback loop enables the circuit to adapt to varying susceptor arrangements in real-time, ensuring continuous optimal performance without external intervention.
2Productivity
If the resonant frequency is adjusted to match different susceptor arrangements, then inductive heating efficiency is improved, but the system requires external controllers to detect and adjust frequency
Solution Approach 1:
The resonant circuit automatically detects changes in susceptor arrangement and self-adjusts its resonant frequency without external control. The circuit monitors its own operating conditions and modifies parameters to maintain optimal resonance, achieving full automation of frequency adjustment while preserving high heating efficiency.
Solution Approach 2:
The resonant circuit is designed with dynamic characteristics that allow it to automatically adapt its resonant frequency in response to changing susceptor arrangements. The circuit parameters can vary dynamically to match the optimal resonance conditions for different susceptors, eliminating the need for external frequency control systems.
3Device complexity
If a fixed resonant frequency circuit is used, then device complexity is reduced, but heating efficiency decreases when susceptor arrangements vary
Solution Approach 1:
The resonant circuit is designed to automatically change its operating parameters, particularly resonant frequency, in response to variations in susceptor arrangement. By allowing key parameters to vary dynamically rather than remain fixed, the circuit maintains both simplicity and adaptability, efficiently heating different susceptor types without complex external control systems.
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 resonant circuit effectively maintains efficient inductive heating of aerosol generating materials by automatically adjusting to changes in the susceptor arrangement, ensuring consistent aerosol generation without the need for external controllers.
Implementation Method 1
an inductive element for inductively heating a susceptor arrangement to heat an aerosol generating material to thereby generate an aerosol
Implementation Method 2
the switching arrangement is configured to alternate between the first state and the second state in response to voltage oscillations within the resonant circuit which operate at a resonant frequency of the resonant circuit
Implementation Method 3
a switching arrangement that, in use, alternates between a first state and a second state to enable a varying current to be generated from a DC voltage supply and flow through the inductive element to cause inductive heating of the susceptor arrangement
Data Source
AI summary
A resonant circuit for an aerosol generating system includes an inductive element for inductively heating a susceptor arrangement to heat an aerosol generating material to thereby generate an aerosol. The circuit also includes a switching arrangement that, in use, alternates between a first state and a second state to enable a varying current to be generated from a DC voltage supply and flow through the inductive element to cause inductive heating of the susceptor arrangement. The switching arrangement is configured to alternate between the first state and the second state in response to voltage oscillations within the resonant circuit which operate at a resonant frequency of the resonant circuit, whereby the varying current is maintained at the resonant frequency of the resonant circuit.