Aerosol Heater Thermal Buffer for Temperature Consistency
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Solution Overview
Problem
Existing aerosol-generating devices face challenges in maintaining consistent and efficient heating of aerosol-generating articles, leading to potential overheating and uneven temperature distribution, which can result in suboptimal aerosol generation.
Innovation Solution
The aerosol-generating device incorporates a heat storage body with a higher specific heat capacity and an inner heat conduction body with higher thermal conductivity, along with an outer heat conduction body, to efficiently distribute heat and maintain a consistent temperature, preventing overheating and ensuring homogeneous heating of the aerosol-generating article.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat receiving surface is heated to high temperatures to generate aerosol, then aerosol generation is enabled, but overheating occurs and temperature consistency deteriorates
Solution Approach 1:
A heat storage body is introduced as an intermediary between the heat receiving surface and the heating space. This heat storage body absorbs excess heat from the heat receiving surface and releases it gradually to the heating space, acting as a thermal buffer that prevents direct heat transfer and temperature fluctuations, thereby maintaining temperature consistency while enabling aerosol generation.
Solution Approach 2:
The patent changes the thermal parameters of the system by introducing materials with specific heat capacity characteristics. The heat storage body is made of material with high specific heat capacity to absorb heat, while the inner heat conduction body uses material with high thermal conductivity to distribute heat evenly. This parameter change transforms the thermal behavior of the system to achieve both high temperature and temperature consistency.
2Temperature
If heat is applied to the heat receiving surface, then aerosol generation is achieved, but uneven temperature distribution occurs in the heating space
Solution Approach 1:
The inner heat conduction body serves as a thermal mediator between the heat storage body and the heating space. It receives heat from the heat storage body and distributes it uniformly across the heating space through its high thermal conductivity, ensuring even temperature distribution and preventing hot spots or cold zones in the heating space.
Solution Approach 2:
The patent applies different material properties to different parts of the thermal management system. The heat storage body uses material with high specific heat capacity for heat absorption, while the inner heat conduction body uses material with high thermal conductivity for heat distribution. This local differentiation of material quality optimizes the thermal behavior in each region to achieve overall temperature uniformity.
3Reliability
If heating is stopped to prevent overheating, then temperature consistency is maintained, but aerosol generation duration is reduced
Solution Approach 1:
The heat storage body performs preliminary heat absorption during the heating phase, storing thermal energy when the heat receiving surface is heated. This preliminary action allows the system to maintain temperature consistency during aerosol generation without continuous heating, extending the aerosol generation duration while preventing overheating through the stored thermal energy being released gradually.
Solution Approach 2:
The heat storage body enables continuous useful action by maintaining heat supply to the heating space even after the heat receiving surface heating is stopped. The stored heat continues to be released to the heating space through the inner heat conduction body, ensuring uninterrupted aerosol generation while preventing temperature spikes, thus achieving both temperature consistency and extended duration.
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 configuration allows for prolonged aerosol generation at a consistent temperature, preventing overheating and ensuring efficient heat transfer, resulting in improved aerosol quality and device performance.
Implementation Method 1
The heat storage body is provided between the heat receiving surface and the heating space. A material of the heat storage body has a higher specific heat capacity than a material of the inner heat conduction body.
Implementation Method 2
The heat storage body may take up heat from the heat receiving surface, when the heat receiving surface is heated. The heat taken up by the heat storage body may be provided to the heating space over time to heat the aerosol-generating article provided therein.
Implementation Method 3
The inner heat conduction body is provided between the heat storage body and the heating space. The material of the inner heat conduction body has a higher thermal conductivity than the material of the heat storage body.
Data Source
AI summary
An aerosol-generating device (3) comprises an axially extending heating chamber (15) configured to at least partially receive an aerosol-generating article (5). The aerosol-generating device (3) further comprises a heater actuation mechanism (47) configured to move between an engaging configuration and a non-engaging configuration. The heater actuation mechanism (47) is configured to act on a heater (7) in the engaging configuration to operate the heater (7) to generate heat. The heater actuation mechanism (47) is configured to not act on the heater (7) in the non-engaging configuration to stop generation of the heat by the heater (7). The heater actuation mechanism (47) comprises an operating element (57). The operating element (57) is configured to be moved to move the heater actuation mechanism (47) from the non-engaging configuration into the engaging configuration. The aerosol-generating device (3) further comprises a blocking mechanism (59). The blocking mechanism (59) is configured to temporarily block a movement of the heater actuation mechanism (47) from the engaging configuration into the non-engaging configuration or from the non-engaging configuration into the engaging configuration.


