Heating Chamber Local Quality Design for Thermal Efficiency
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Solution Overview
Problem
Existing aerosol generation devices face challenges in efficiently heating aerosol substrates to release aerosols while minimizing energy consumption and maintaining thermal efficiency, particularly in portable and low-temperature applications.
Innovation Solution
A portable aerosol generation device featuring a heating chamber with a thin, stainless steel tubular side wall and base, optimized for thermal conductivity, combined with a flanged portion and inwardly directed protrusions for enhanced heat transfer and structural support, along with a heater and control circuitry for precise temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the side wall thickness is increased to improve structural strength, then the heating chamber durability is improved, but the thermal efficiency deteriorates due to increased heat loss
Solution Approach 1:
The heating chamber employs different wall thicknesses in different regions: the side wall has a first thickness optimized for thermal efficiency, while the base has a second thickness (greater than the first thickness) optimized for structural support. This local differentiation allows each region to be optimized for its specific function without compromising overall performance.
2Loss of energy
If the side wall thickness is decreased to improve thermal efficiency, then heat transfer is improved, but the structural strength deteriorates
Solution Approach 1:
The heating chamber employs different wall thicknesses in different regions: the side wall has a first thickness optimized for thermal efficiency, while the base has a second thickness (greater than the first thickness) optimized for structural support. This local differentiation allows each region to be optimized for its specific function without compromising overall performance.
3Ease of manufacture
If the heating chamber is designed with uniform wall thickness, then manufacturing is simplified, but thermal performance deteriorates due to insufficient thermal isolation
Solution Approach 1:
The heating chamber employs different wall thicknesses in different regions: the side wall has a first thickness optimized for thermal efficiency, while the base has a second thickness (greater than the first thickness) optimized for structural support and thermal isolation. This local differentiation allows each region to be optimized for its specific function.
Solution Approach 2:
The heating chamber is segmented into regions with different thermal requirements, with the side wall and base having different thicknesses to optimize their respective functions for heat transfer and thermal isolation.
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 efficiently heats aerosol substrates to release aerosols quickly and effectively, reducing energy consumption and improving thermal isolation, while maintaining user comfort and device durability.
Implementation Method 1
a heater arranged to supply heat to the heating chamber
Implementation Method 2
heating an aerosol substrate, but not combusting or burning it, releases an aerosol
Implementation Method 3
the tubular side wall comprises a material having a thermal conductivity of 50W/mK or less
Data Source
Figure 1
Figure 2
Figure 2(a)
AI summary
An aerosol generation device (100) has a heating chamber (108) for receiving a substrate carrier (114) containing an aerosol substrate (128). The heating chamber (108) comprises an open end (110); a base (112); and a tubular side wall (126) between the open end (110) and the base (112). The heating chamber (108) is formed as a single element. A method of forming the heating chamber comprises providing a blank having a first thickness and deep drawing the blank to form the tubular side wall (126) having the open end (110) and the base (112) opposite the open end (110).