Zoned Heating Structure for Lower-Temperature Heat-Not-Burn Aerosol
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Solution Overview
Problem
Conventional heat-not-burn smoking sets generate excessively hot aerosol due to high proportion of heating structures around the tubular heating structure, leading to excessive heating temperatures and generation of overheated aerosol with high water vapor content.
Innovation Solution
A heating apparatus with zoned heating, featuring a first and second heating zone on the circumferential direction, where the first heating component preheats and then synchronously heats with the second component to reduce water vapor content and lower aerosol temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high proportion of heating structures are arranged around the circumference of the tubular heating structure, then heating sufficiency is improved, but heating temperature becomes excessively high and water vapor content increases
Solution Approach 1:
The heating structure is divided into multiple independent heating zones arranged circumferentially around the tubular heating structure. Each heating zone contains heating structures that can be controlled independently, allowing the system to distribute heating more evenly and avoid excessive temperature concentration in any single area, thereby reducing overall aerosol temperature while maintaining heating sufficiency.
Solution Approach 2:
Different heating zones are designed with different heating characteristics to create localized heating effects. By adjusting the heating power distribution across different zones, the system can achieve sufficient heating of the aerosol-generating substrate without causing excessive temperature rise, thus controlling water vapor content while ensuring reliable heating.
2Reliability
If a high proportion of heating structures are arranged around the circumference of the tubular heating structure, then heating sufficiency is improved, but water vapor content becomes excessively high
Solution Approach 1:
The heating structure is segmented into multiple circumferential heating zones with independent control. This segmentation allows the system to distribute heating energy more evenly, preventing excessive water vapor generation in localized areas while maintaining overall heating sufficiency, thus controlling total water vapor content in the aerosol.
Solution Approach 2:
The heating system employs dynamic control of different heating zones, allowing adjustment of heating power distribution in real-time. This dynamic adjustment enables the system to optimize heating efficiency while controlling water vapor content, maintaining heating sufficiency without generating excessive water vapor.
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 zoned heating method effectively reduces water vapor content and lowers aerosol temperature by staged heating, improving user experience.
Implementation Method 1
the first heating component and the second heating component perform heating asynchronously or synchronously
Implementation Method 2
a heat conducting carrier, a first heating component, and a second heating component; the heat conducting carrier is provided with a first heating zone and a second heating zone
Implementation Method 3
the substrate segment is preheated by the first heating component to evaporate part of moisture into water vapor
Data Source
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AI summary
A heating apparatus and a heat-not-burn smoking set are provided. The heating apparatus includes a heat conducting carrier, a first heating component, and a second heating component; the heat conducting carrier is provided with a first heating zone and a second heating zone along a circumferential direction thereof, and a ratio of an area of the first heating zone to an area of the second heating zone ranges from 1/1 to 3/7; the first heating component is disposed in the first heating zone and the second heating component is disposed in the second heating zone; and the first heating component and the second heating component perform heating asynchronously or synchronously. The heating apparatus preheats a substrate segment of an aerosol-generating substrate by means of the first heating component, and then synchronously heats together with the second heating component by means of the second heating component, such that in a stepped heating manner, part of moisture is evaporated into water vapor each time, thereby effectively reducing the content of water vapor, and lowering an aerosol temperature.