Immiscible Two-Phase E-Cig Liquid Prevents Dry Puffs
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Solution Overview
Problem
Conventional electronic cigarettes lack a precise method to indicate when the aerosol-forming liquid has been substantially consumed, often resulting in dry puffs and an unpleasant user experience due to the lack of feedback.
Innovation Solution
A two-component aerosol forming liquid system with immiscible primary and secondary components, where the primary component contains nicotine and the secondary component is designed to provide detection functionality, forming an interfacial tension surface for separation and allowing the secondary component to replace the primary when depleted, preventing dry puffs and providing sensory feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single-component aerosol forming liquid is used, then the device structure is simple, but the user cannot detect when the liquid is consumed, leading to dry puffs
Solution Approach 1:
The liquid composition is segmented into two immiscible components: a primary aerosol-forming liquid and a secondary indicator liquid. This segmentation allows the system to differentiate between liquid presence and consumption state without requiring complex external sensors, resolving the contradiction between detection accuracy and device complexity.
Solution Approach 2:
The secondary indicator liquid acts as an intermediary substance that provides visual feedback about primary liquid consumption. When the primary liquid is depleted, the secondary liquid becomes visible through the transparent cartridge wall, serving as a mediator between the system state and user perception without adding complex detection hardware.
2Measurement precision
If the liquid container is transparent to allow visual monitoring, then the user can see liquid level, but cannot precisely detect when the liquid is substantially consumed
Solution Approach 1:
The system utilizes visual appearance changes of the secondary indicator liquid (which may differ in color, transparency, or texture from the primary liquid) to signal consumption state. This allows precise detection of when the primary liquid is substantially consumed through simple visual observation through the transparent cartridge, improving measurement precision while maintaining ease of operation.
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 system effectively prevents dry puffs by ensuring continuous wetting of the vapor generation unit with the secondary component, providing precise feedback to the user when the primary liquid is consumed, and maintaining a pleasant vaping experience.
Implementation Method 1
the primary and secondary liquid components are immiscible to form an interfacial tension surface between a first volume in the liquid container having the primary liquid component and a second volume in the liquid container having the secondary liquid component
Data Source
AI summary
A liquid container having an aerosol forming liquid for an electronic cigarette, the liquid container including a primary liquid component including nicotine, and a secondary liquid component, wherein the primary and secondary liquid components are immiscible to form an interfacial tension surface between a first volume in the liquid container having the primary liquid component and a second volume in the liquid container having the secondary liquid component to fully separate the primary and secondary liquid components from each other.