Induction Coil Article Detection in Aerosol Heating Devices
Solution Overview
Problem
Aerosol generating apparatuses face challenges in detecting insertion of aerosol generating articles without increasing hardware complexity and manufacturing costs, due to the need for separate sensors, and in accommodating these sensors within their compact design.
Innovation Solution
The apparatus employs an induction coil to detect the insertion of an aerosol generating article by switching control modes based on changes in inductance, eliminating the need for a separate sensor and optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a separate sensor is added to detect insertion of aerosol generating article, then detection function is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The induction coil is designed to perform dual functions: serving as both the heating element for induction heating and as the detection sensor for identifying aerosol generating article insertion. By making the induction coil multi-functional, the patent eliminates the need for a separate sensor, thereby improving device complexity without sacrificing detection capability
Solution Approach 2:
The patent combines the heating function and detection function into a single component - the induction coil. The coil's inductance changes when an aerosol generating article is inserted, allowing it to serve as both heater and sensor simultaneously, thus merging two functions into one component to reduce overall device complexity
2Measurement precision
If a separate sensor is added to detect insertion of aerosol generating article, then detection function is improved, but manufacturing cost increases
Solution Approach 1:
The induction coil is designed to perform dual functions: serving as both the heating element for induction heating and as the detection sensor for identifying aerosol generating article insertion. By making the induction coil multi-functional, the patent eliminates the need for a separate sensor, thereby improving device complexity without sacrificing detection capability
Solution Approach 2:
The patent combines the heating function and detection function into a single component - the induction coil. The coil's inductance changes when an aerosol generating article is inserted, allowing it to serve as both heater and sensor simultaneously, thus merging two functions into one component to reduce overall device complexity
3Measurement precision
If a separate sensor is added to detect insertion of aerosol generating article, then detection function is improved, but available space in compact design decreases
Solution Approach 1:
The induction coil is designed to perform dual functions: serving as both the heating element for induction heating and as the detection sensor for identifying aerosol generating article insertion. By making the induction coil multi-functional, the patent eliminates the need for a separate sensor, thereby improving device complexity without sacrificing detection capability
Solution Approach 2:
The patent combines the heating function and detection function into a single component - the induction coil. The coil's inductance changes when an aerosol generating article is inserted, allowing it to serve as both heater and sensor simultaneously, thus merging two functions into one component to reduce overall device complexity
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 allows for efficient detection and heating of aerosol generating articles without additional sensors, reducing power consumption and maintaining compact design, while ensuring accurate detection and efficient heating operations.
Implementation Method 1
detecting an insertion of the aerosol generating article on the basis of a change in an inductance of the induction coil
Implementation Method 2
an induction coil arranged around the susceptor and configured to heat the susceptor by induction heating
Data Source
AI summary
Provided is an aerosol generating apparatus including: a susceptor configured to heat an aerosol generating article inserted into an accommodation space of the aerosol generating apparatus; an induction coil arranged around the susceptor and configured to heat the susceptor by induction heating; a switching module configured to switch an electrical path of the induction coil; and a controller electrically connected to the switching module and configured to detect insertion of the aerosol generating article on the basis of a change in an inductance of the induction coil by setting a control mode for the induction coil to a reception mode, and when the insertion of the aerosol generating article is detected, switch the control mode to a transmission mode for activating the induction heating, via the switching module.