Aerosol Heating Assembly With Thermal Barriers for Zone Isolation
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Solution Overview
Problem
Heat-not-burn aerosol generation devices face issues with excessively high heating temperatures due to circumferential heating, leading to high-temperature aerosol production and a poor user experience.
Innovation Solution
The heating assembly includes at least two heating zones with a thermal barrier structure between adjacent zones to reduce heat transfer, using a thermal insulation body to prevent heat conduction and form independent heating zones, and a thermoplastic sealing layer to prevent airflow leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If circumferential heating is used to heat the aerosol generation substrate, then heating coverage is improved, but heating temperature becomes excessively high producing high-temperature aerosol
Solution Approach 1:
The heating element is divided into at least two separate heating zones with a thermal barrier structure between them. This segmentation prevents heat concentration in a single area, allowing each zone to operate at lower temperatures while collectively providing comprehensive heating coverage of the aerosol generation substrate.
Solution Approach 2:
A thermal barrier structure is introduced as an intermediary between adjacent heating zones. This thermal barrier reduces heat transfer between zones, preventing heat accumulation and enabling each heating zone to maintain lower operating temperatures while still achieving adequate substrate heating through the combined effect of multiple zones.
2Temperature
If thermal barrier structure is introduced to reduce heat transfer between heating zones, then temperature control is improved, but device complexity increases
Solution Approach 1:
The thermal barrier structure is strategically positioned only between adjacent heating zones where heat transfer control is needed, rather than throughout the entire heating assembly. This localized approach achieves effective temperature control while minimizing the addition of complex components.
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 reduces overall temperature, improves user experience by avoiding burning sensations, enhances heat utilization efficiency, and minimizes heat loss.
Implementation Method 1
a thermal barrier structure is provided between at least one pair of adjacent heating zones, the thermal barrier structure being configured to reduce heat transfer between the adjacent heating zones
Implementation Method 2
the heating element includes at least two heating zones... configured to heat an aerosol generation substrate
Data Source
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AI summary
An aerosol generation device (2030) and a heating assembly (2010). The heating assembly (2010) comprises a heating element (2011); the heating element (2011) is configured to heat an aerosol generation substrate (10100, 2020, 301), and the heating element (2011) includes at least two heating zones (10121, 20115). A thermal barrier structure is provided between at least one pair of adjacent heating zones (10121, 20115), the thermal barrier structure being configured to reduce heat transfer between the adjacent heating zones (10121, 20115). The pipe wall thinning portion (3028) slows down the heat transfer speed between adjacent heating zones (3024). When one of the adjacent heating zones (3024) is heating, the heat is more concentrated in the heated area of the working heating zone (3024), resulting in higher heat utilization efficiency, less heat loss, and improved independent heating efficiency of the heating zones (3024).