Induction Aerosol Heater Module With Thin-Film Susceptor Sensing
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Solution Overview
Problem
Induction heating type aerosol generating devices face challenges in miniaturization, space efficiency, and improved heating efficiency, as well as sensing performance for physical quantities like air pressure, temperature, and humidity.
Innovation Solution
An aerosol generating device with a housing, heater module, and airflow passage structure that includes a susceptor in a thin-film shape, along with sensors for pressure, temperature, and humidity, to enhance heating efficiency and sensing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the aerosol generating device is reduced for portability, then portability and convenience are improved, but the heating area of the susceptor is reduced and heating efficiency deteriorates
Solution Approach 1:
The patent applies a thin-film susceptor integrated into the aerosol generating article instead of a bulky traditional susceptor. This thin-film structure enables the device to maintain a compact size while providing sufficient heating area through its large surface-to-volume ratio, effectively resolving the contradiction between miniaturization and heating efficiency
Solution Approach 2:
The susceptor is nested within the aerosol generating article structure, with the thin-film susceptor positioned inside the article body. This nested configuration allows the heating component to be integrated into the article without increasing overall device volume, maintaining portability while enabling effective heating
2Measurement precision
If multiple sensors are added to improve sensing performance of physical quantities, then measurement accuracy is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent integrates multiple sensing functions into a unified sensor system within the heater module. The sensor structure is designed to simultaneously detect multiple physical quantities (such as temperature and pressure) using a single integrated component, thereby improving measurement precision across multiple parameters without proportionally increasing device complexity
Solution Approach 2:
Multiple sensor functions are merged into a single integrated sensing unit positioned within the heater module. This consolidation approach allows the device to achieve enhanced multi-parameter sensing capability while minimizing the space and complexity that would result from using separate discrete sensors for each measurement function
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 achieves miniaturization, improved heating efficiency, and enhanced sensing capabilities for air pressure, temperature, and humidity, while maintaining efficient aerosol generation.
Implementation Method 1
an aerosol generating device in an induction heating method, which generates aerosols by heating a cigarette or an aerosol generating material through an alternating magnetic field
Implementation Method 2
a coil that generates an alternating magnetic field as power is supplied, and a susceptor that generates heat when the alternating magnetic field generated by the coil is applied
Data Source
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AI summary
An aerosol generating device includes a housing including an air inlet through which air is introduced, and a heater module arranged inside the housing and configured to heat an aerosol generating article, wherein the heater module includes a receiving portion having a receiving space for accommodating the aerosol generating article, one or more coils configured to generate a magnetic field, a passage structure arranged on one side of the receiving portion and including one airflow passage configured to receive external air through the air inlet and transfer the received external air to the receiving portion, and a pressure sensor configured to generate a signal about a pressure inside the airflow passage.