Crystallization-Heated Smokeless Cigarette for Simple Nicotine Release
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Solution Overview
Problem
Existing smokeless cigarettes either require external heat sources or complex constructions, which can be inconvenient and costly, and often fail to efficiently heat the air and nicotine reservoir.
Innovation Solution
A smokeless cigarette with a self-sufficient heating unit using a crystallizable medium that emits heat upon crystallization, maintaining temperatures between 40°C and 70°C for 3 to 15 minutes, integrated with a nicotine reservoir and a multi-layer outer shell for efficient nicotine release and air heating, and a triggering mechanism for easy activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flame or filament is used to heat the nicotine reservoir, then effective heating and nicotine release is achieved, but the device becomes more complex and requires external power sources
Solution Approach 1:
The patent utilizes the phase transition of a crystallizable medium (liquid to solid) which releases latent heat during crystallization. This exothermic phase change provides self-sufficient heating without requiring external power sources, filaments, or burners, thereby simplifying the device while maintaining effective heating capability.
Solution Approach 2:
The crystallizable medium serves as a self-contained heat source that generates heat automatically through its crystallization process. The system is self-sufficient and does not require external intervention, power sources, or complex control mechanisms, eliminating the need for batteries, lighters, or electronic components.
2Temperature
If a flame or burner is used to heat the nicotine reservoir, then sufficient heat is generated, but the construction becomes more complex and costly
Solution Approach 1:
The crystallizable medium leverages the latent heat released during its phase transition from liquid to solid state. This natural thermodynamic process generates sufficient heating temperature without requiring complex ignition systems, burners, or fuel storage mechanisms, making the device simpler and more cost-effective to manufacture.
Solution Approach 2:
The patent employs a disposable crystallizable medium that provides single-use heating functionality. This eliminates the need for expensive, reusable components like lighters, burners, or electronic heating elements, reducing manufacturing costs while achieving the required heating temperature for nicotine release.
3Productivity
If high temperature heating is used to release nicotine efficiently, then nicotine delivery is improved, but the cigarette becomes too hot to hold comfortably
Solution Approach 1:
The crystallizable medium releases heat through phase transition at a controlled temperature range that is sufficient to vaporize nicotine and heat the inhaled air, but not excessively high to cause discomfort. The latent heat of crystallization provides sustained heating at moderate temperatures, ensuring both effective nicotine delivery and user comfort.
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 solution provides a simple, cost-effective, and efficient means of heating the air and nicotine reservoir, ensuring comfortable inhalation and effective nicotine delivery without the need for external heat or complex assembly.
Implementation Method 1
a crystallizable medium which emits heat when it crystallizes
Implementation Method 2
the crystallization of the medium releases heat
Implementation Method 3
the crystallizable medium can be a supersaturated metastable solution
Implementation Method 4
This supersaturated solution can crystallize with the release of heat if the crystallization process is initiated
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The present invention relates to a smoke-free cigarette, comprising a thermal unit for the self-sufficient generation of heat and a nicotine reservoir which contains nicotine or a nicotine-containing compound, characterized in that the thermal unit comprises a medium capable of crystallization, which emits heat during the crystallization thereof.