Heating Chamber Structure for Rapid Aerosol Heating and Thermal Isolation
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Solution Overview
Problem
Existing aerosol generation devices for vaporizers face challenges in efficiently heating aerosol substrates while minimizing energy consumption and maintaining thermal isolation, leading to inefficiencies in heating chamber design and user experience.
Innovation Solution
A heating chamber design featuring a thin, thermally conductive side wall with a thicker base, surrounded by an insulating member with a vacuum or low-pressure gas, and a heater configuration that localizes heat to the aerosol substrate, reducing thermal mass and enhancing thermal isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a conventional heating chamber design is used, then thermal isolation is provided, but heating efficiency is reduced and energy consumption increases
Solution Approach 1:
The heating chamber is segmented into distinct regions: a thin-walled chamber for rapid heating, a thicker base for thermal mass and stability, and an insulating member with vacuum or low-pressure gas regions. This segmentation allows each region to perform its specific function optimally, resolving the contradiction between energy consumption and heating efficiency.
Solution Approach 2:
Different parts of the heating chamber have different thermal properties: the side wall is thin for rapid heat transfer, the base is thicker for thermal stability, and the insulating member provides thermal isolation. This local differentiation of thermal qualities enables the system to achieve both low energy consumption and high heating efficiency simultaneously.
2Object-affected harmful factors
If thermal isolation is enhanced, then heat transfer to outer casing is reduced, but heating chamber thermal mass increases
Solution Approach 1:
An insulating member is introduced as an intermediary between the heating chamber and the outer casing. This insulating member contains vacuum or low-pressure gas regions that provide thermal isolation without adding significant mass, effectively reducing heat transfer to the outer casing while maintaining low thermal mass of the heating chamber.
Solution Approach 2:
The insulating member creates a vacuum or low-pressure gas environment between the heating chamber and outer casing. This inert thermal environment provides excellent thermal isolation properties without adding thermal mass, resolving the contradiction between heat transfer reduction and thermal mass increase.
3Productivity
If heater configuration is optimized for substrate heating, then aerosol generation efficiency improves, but thermal isolation is compromised
Solution Approach 1:
The heater is configured to provide localized heating at the substrate position within the heating chamber, while the thin-walled chamber and insulating member maintain thermal isolation in other regions. This local concentration of heating energy improves aerosol generation efficiency without compromising overall thermal isolation, as heat is directed precisely where needed rather than distributed throughout the entire chamber.
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 design allows for rapid heating of aerosol substrates with reduced energy consumption, improved thermal efficiency, and enhanced user comfort by minimizing heat transfer to the outer casing, ensuring efficient aerosol generation and vaporization.
Implementation Method 1
an insulating member comprising an insulating side wall, and an insulating base, the insulating member being arranged so that a part of the heating chamber including the chamber base is nested inside the insulating member
Implementation Method 2
an insulating member with a vacuum or low-pressure gas
Implementation Method 3
the insulating side wall has a lower thermal conductivity than the insulating base
Implementation Method 4
heat, rather than burn, tobacco or other suitable materials by conduction, convection, and/or radiation
Implementation Method 5
heat, rather than burn, tobacco or other suitable materials by conduction, convection, and/or radiation
Implementation Method 6
heat, rather than burn, tobacco or other suitable materials by conduction, convection, and/or radiation
Implementation Method 7
reducing thermal mass and enhancing thermal isolation
Data Source
AI summary
A heating chamber for an aerosol generation device includes a chamber side wall and a chamber base. The chamber side wall and chamber base together define an interior volume of the heating chamber. A heater is provided in thermal engagement with the chamber side wall. An insulating member includes an insulating side wall and an insulating base, and is arranged so that a part of the heating chamber including the chamber base is nested inside the insulating member. There is also disclosed an aerosol generation device including an electrical power source, an outer casing, the heating chamber and control circuitry arranged to control the supply of electrical power from the electrical power source to the heater.