Heat-not-burn Consumable Thermal Insulation for Aerosol Generation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aerosol generating apparatuses face issues with precursors burning at high temperatures, leading to a poor user experience due to the generation of a burning taste.
Innovation Solution
The consumable is designed with separate storage portions for aerosol generation, where the first storage portion acts as an insulator between the heating element and the second storage portion, allowing for a temperature gradient that reduces the risk of burning and enables customizable aerosol generation by positioning substrates with different material compositions and temperature properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heating element operates at high temperatures to aerosolise precursor compounds, then aerosol generation efficiency is improved, but the precursor can become too hot and burn during use, causing poor taste
Solution Approach 1:
The consumable is divided into multiple storage portions (first storage portion and second storage portion) with different substrate materials positioned at different distances from the heating element. This segmentation allows different precursor compounds to be aerosolised at different temperature zones, enabling efficient aerosol generation while preventing burning of heat-sensitive materials
Solution Approach 2:
Different storage portions are assigned different substrate materials with specific thermal properties tailored to their location in the temperature gradient. The first storage portion (closer to heater) uses materials suitable for high-temperature aerosolisation, while the second storage portion (farther from heater) uses materials that would burn at high temperatures but aerosolise well at lower temperatures
2Device complexity
If a single substrate contains multiple aerosol-forming compounds, then device complexity is reduced, but the temperature gradient cannot be optimized for different compounds, increasing burning risk
Solution Approach 1:
Instead of using a single substrate, the invention segments the consumable into multiple storage portions, each containing specific aerosol-forming compounds. This allows optimization of the temperature gradient for each compound type, improving reliability by preventing burning while maintaining manageable device complexity through modular design
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 prevents burning of the second storage portion, enhances aerosol generation efficiency, and provides a more customizable user experience by allowing operation at lower temperatures, reducing the risk of burning and improving taste.
Implementation Method 1
the first storage portion may effectively act as a barrier to insulate (at least to a degree) the second storage portion from the high temperatures of the heating element
Implementation Method 2
the heating element is configured to generate a vapour directly from a precursor by heating the precursor to a target temperature
Implementation Method 3
the precursor can become too hot and burn over the course of a smoking session
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A heat-not-burn consumable for use with a heat-not-burn unit has two storage portions arranged so that the first storage portion will be located in use between the second storage portion and a heating element of the heat-not-burn unit. Each storage portion has a substrate for generating an aerosol. The substrate of the first storage portion is formed of a different material composition from the substrate of the second storage portion. For example, the first storage portion may have a non-tobacco substrate imbued with a liquid/gel precursor, and the second storage portion may have a tobacco substrate. In use, due to its closer proximity to the heater, the first storage portion will be heated to greater temperatures than the second storage portion and can therefore help prevent the substrate in the second storage portion from overheating and burning. Also provided is a heat-not-burn apparatus having the heat-not-burn consumable and the heat-not-burn unit having the heating element for heating the consumable.