Induction Aerosol Heater Resonance Tracking to Cut Power Loss
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Solution Overview
Problem
The existing induction heating devices for smokable materials experience significant power loss due to a frequency mismatch between the DC/AC inverter output and the LC oscillator, leading to inefficient heating.
Innovation Solution
An aerosol-producing device that includes an LC oscillator, a power supply, a susceptor, a frequency detection module, and a controller to adaptively adjust the driving frequency of the pulse voltage to match the oscillation frequency of the LC oscillator, ensuring resonance and minimizing power loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a fixed frequency inverter is used to drive the LC oscillator, then the device structure is simple, but significant power loss occurs due to frequency mismatch
Solution Approach 1:
The patent applies dynamics by making the inverter frequency adjustable rather than fixed. The controller dynamically changes the inverter operating frequency based on real-time detection of the LC oscillator's resonant frequency, allowing the system to adapt to frequency variations and maintain resonance, thereby reducing power loss while managing complexity through controlled adaptability.
Solution Approach 2:
The patent implements feedback by detecting the oscillation frequency of the LC oscillator and using this information to adjust the inverter frequency. The frequency detection module continuously monitors the resonant frequency, and the controller uses this feedback signal to tune the inverter, creating a closed-loop control system that minimizes power loss through automatic frequency matching.
2Loss of energy
If the inverter frequency is adjusted to match the LC oscillator frequency, then power loss is reduced, but the control system becomes more complex
Solution Approach 1:
The patent implements feedback by detecting the oscillation frequency of the LC oscillator and using this information to adjust the inverter frequency. The frequency detection module continuously monitors the resonant frequency, and the controller uses this feedback signal to tune the inverter, creating a closed-loop control system that minimizes power loss through automatic frequency matching.
Solution Approach 2:
The patent applies self-service by enabling the system to automatically detect and adjust its own operating parameters. The frequency detection module and controller work together to autonomously find and maintain the resonant frequency without external intervention, allowing the system to self-optimize its performance and reduce power loss through automatic frequency tracking.
3Productivity
If a simple fixed-frequency inverter is used, then the device is easier to manufacture, but heating efficiency is low due to frequency mismatch
Solution Approach 1:
The patent applies dynamics by making the inverter frequency adjustable rather than fixed. The controller dynamically changes the inverter operating frequency based on real-time detection of the LC oscillator's resonant frequency, allowing the system to adapt to frequency variations and maintain resonance, thereby reducing power loss while managing complexity through controlled adaptability.
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 effectively reduces power loss by continuously adjusting the frequency to match the resonance frequency, resulting in more efficient heating of smokable materials and aerosol production.
Implementation Method 1
an LC oscillator, which includes a first capacitor and an inductance coil in series connection; a power supply, which is configured to provide a pulse voltage to the LC oscillator so that the inductance coil of LC oscillator generates a changing magnetic field
Implementation Method 2
a susceptor, which is configured to be penetrated by the changing magnetic field to generate heat, thereby heating the smokable material received in the chamber
Implementation Method 3
an LC oscillator, which includes a first capacitor and an inductance coil in series connection; a frequency detection module, which is configured to detect an oscillation frequency of the LC oscillator
Data Source
AI summary
An electromagnetic induction heating-type aerosol-producing device and a control method are used to heat a smokeable material produce an aerosol. The device comprises: an LC oscillator, an inductance coil of which is inductively coupled with a susceptor; a power supply for providing a pulse voltage to the LC oscillator; the susceptor, which is penetrated by a changing magnetic field to generate heat, thereby heating the smokable material; and a frequency detection module for detecting the oscillation frequency of the LC oscillator; and according to the detection result of the frequency detection module, a controller adjusts the frequency of the pulse voltage provided by the power supply to the LC oscillator. The oscillation frequency of the LC oscillator is detected in real time, and the frequency of the power supplied to the LC oscillator is constantly corrected according to the detection results.