Aerosol-Generating Device With Magnetic Heater Temperature Sensing
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Solution Overview
Problem
Existing aerosol-generating devices face challenges in accurately sensing the temperature of heaters, are prone to contamination from droplets, and have complex structures that hinder cleaning and detachment of components.
Innovation Solution
The device incorporates a sensing circuit with a first, second, and third electrically conductive parts forming a magnetic field detection system, allowing for enhanced signal amplification and accuracy, and enables detachable components like the cap, heater, and container for easy cleaning and prevention of contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is used to detect heater temperature, then temperature sensing capability is provided, but measurement accuracy is insufficient
Solution Approach 1:
The patent replaces traditional contact式 temperature sensors with a magnetic field-based sensing circuit that detects temperature changes through magnetic property variations of the heater, eliminating mechanical contact and improving measurement accuracy while reducing circuit complexity
Solution Approach 2:
The sensing circuit detects temperature changes by monitoring changes in magnetic field characteristics (magnetic permeability, magnetic moment) of the heater material as temperature varies, converting temperature measurement into magnetic parameter detection for higher precision
2Stability of the object's composition
If the heater and container are integrated into the body, then structural stability is improved, but cleaning accessibility and contamination prevention are worsened
Solution Approach 1:
The patent divides the heater assembly and container into detachable modules that can be separated from the main body, allowing users to easily remove and clean these components while maintaining structural stability when assembled, thus resolving the contradiction between stability and cleaning accessibility
3Object-affected harmful factors
If the device structure is sealed and integrated, then contamination resistance is improved, but component detachability for cleaning is reduced
Solution Approach 1:
The patent implements a dynamic sealing system where the container and heater assembly can be detached when open and sealed when closed, providing both cleaning accessibility during disassembly and contamination resistance during operation, thus resolving the contradiction between sealed structure and component detachability
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 solution enhances temperature sensing accuracy, facilitates easy cleaning, and prevents device contamination by allowing detachable components, improving overall device functionality and hygiene.
Implementation Method 1
a sensor configured to detect a change in a magnetic field of the sensing circuit
Implementation Method 2
a heater configured to heat the first insertion space
Data Source
AI summary
An aerosol-generating device is disclosed. The aerosol-generating device of the present disclosure includes a body having formed therein a first insertion space; a heater configured to heat the first insertion space; a sensing circuit connected to the heater; and a sensor configured to detect a change in a magnetic field of the sensing circuit, wherein the sensing circuit comprises a first part, a second part, and a third part which are each electrically conductive, wherein the first part and the second part are elongated with the third part extending between the first part and the second part to electrically connect the first part and the second part to each other, and wherein the sensor is disposed between the first part and the second part.