Aerosol Device Insulating Member Thermal Conduction
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Solution Overview
Problem
Existing aerosol provision devices face challenges in efficiently heating different sections of an aerosol generating article to distinct temperatures without thermal conduction, which can lead to uneven heating and reduced performance.
Innovation Solution
Incorporating a thermally insulating member between the heating elements of the aerosol generators to maintain a desired spacing and reduce thermal transfer, allowing for independent temperature control of each section, along with the use of induction coils and resistive heaters for efficient heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heating elements are placed close together to heat different sections of the aerosol generating article, then heating efficiency is improved, but thermal conduction between heating elements causes temperature control issues
Solution Approach 1:
A thermally insulating member is introduced as an intermediary between the first and second heating elements. This insulating member prevents direct thermal conduction between the heating elements while allowing both to operate at different temperatures simultaneously, thus resolving the temperature control issue without sacrificing heating efficiency
Solution Approach 2:
The heating system is segmented into two independent heating zones with separate heating elements. The insulating member creates thermal separation between these zones, enabling independent temperature control for each section of the aerosol generating article, thereby improving both heating efficiency and temperature precision
2Temperature
If a thermally insulating member is added between heating elements to prevent thermal conduction, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
The insulating member serves multiple functions simultaneously: it provides thermal insulation between heating elements, acts as a spacer to maintain proper positioning, and potentially serves as part of the housing structure. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity
3Temperature
If heating elements are spaced further apart to reduce thermal transfer, then temperature control precision is improved, but heating speed decreases
Solution Approach 1:
The thermally insulating member acts as a mediator that blocks thermal conduction between heating elements while maintaining close spacing. This allows each heating element to operate independently at its optimal temperature without thermal interference, preserving both temperature control precision and heating speed
Solution Approach 2:
The insulating member changes the thermal parameters between heating elements by introducing low thermal conductivity material. This allows the physical spacing to remain small for fast heating while the thermal interaction is minimized through the insulating property of the intermediate material
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
Enables precise and efficient heating of different sections of the aerosol generating article to desired temperatures, improving aerosol generation and user experience by reducing thermal conduction and enhancing the speed at which the device is ready for use.
Implementation Method 1
an insulating member arranged between the first and second heating elements
Implementation Method 2
a first induction coil and a first susceptor comprising material that is heatable by penetration with a varying magnetic field
Implementation Method 3
a second induction coil and a second susceptor comprising material that is heatable by penetration with a varying magnetic field
Implementation Method 4
a first resistive heater comprising the first heating element
Data Source
AI summary
An aerosol provision device for generating aerosol from an aerosol generating article having a first section housing a first aerosol generating material and a second section housing a second aerosol generating material is disclosed. The aerosol provision device includes a first aerosol generator having a first heating element for causing aerosol to be generated from the first aerosol generating material and a second aerosol generator having a second heating element for causing aerosol to be generated from the second aerosol generating material. An insulating member is arranged between the first and second heating elements.