Bubble Removal in Gel-State E-Liquid via Internal Cooling and Vacuum
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Solution Overview
Problem
The gel-state e-liquid in e-cigarettes often forms with bubbles due to air introduction during mixing, resulting in uneven appearance, low transparency, and poor aesthetic quality, affecting user experience.
Innovation Solution
A bubble removal preparation device comprising a negative-pressure chamber with a cooling element and a porous e-liquid containing chamber, where the cooling element cools the e-liquid from the inside out and negative pressure removes bubbles through holes in the chamber walls, ensuring complete bubble removal and a consistent, transparent gel-state e-liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gel-state e-liquid is prepared by simple mixing of gelling agent, flavoring, and atomizing agent, then the preparation process is simple and quick, but bubbles are inevitably introduced resulting in uneven appearance, low transparency, and poor aesthetic quality
Solution Approach 1:
The patent applies preliminary action by performing vacuum treatment on the e-liquid components before mixing with the gelling agent. This pre-removal of air bubbles from the base liquid ensures that when the gel forms, minimal bubbles are present, addressing the aesthetic quality issue while maintaining simple preparation steps
Solution Approach 2:
The patent utilizes phase transition by controlling the temperature of the gelling agent during mixing. By adjusting temperature, the viscosity and bubble-trapping characteristics of the gel mixture are optimized, allowing bubbles to be more easily removed during vacuum treatment while maintaining the simplicity of the mixing process
2Productivity
If cooling element is placed inside the e-liquid containing cavity to cool from inside out, then bubble removal efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The patent applies the nested doll principle by placing the cooling element inside the porous e-liquid containing chamber. This nested configuration allows the cooling element to be surrounded by the e-liquid, enabling efficient internal cooling that promotes bubble rise and removal, while the porous chamber structure provides both containment and bubble escape pathways without requiring additional external cooling systems
3Manufacturing precision
If negative pressure is applied to remove bubbles, then bubble removal completeness is improved, but energy consumption increases
Solution Approach 1:
The patent combines negative pressure with temperature-controlled phase transition of the gelling agent. The controlled gelation process under negative pressure allows bubbles to coalesce and rise efficiently to the surface, where they can escape through the porous chamber walls. This combination achieves complete bubble removal while minimizing energy consumption by utilizing the natural phase change process rather than relying solely on high-energy vacuum systems
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 achieves a bubble-free, high-transparency gel-state e-liquid with improved aesthetic quality and efficient atomization, allowing for sectional heating without repeated liquefaction-solidification, expanding gelling agent options and enhancing user experience.
Implementation Method 1
cooling and solidifying the sol-state e-liquid from inside to outside... until the temperature of the cooling element 3 drops to room temperature, the sol-state e-liquid is completely cooled into the gel state
Implementation Method 2
opening the negative-pressure suction device of the negative-pressure chamber 1 to make the whole negative-pressure chamber 1 in a negative-pressure state; drawing the bubbles in the sol-state e-liquid out of the porous e-liquid containing chamber 2 from inside to outside
Data Source
AI summary
A bubble removal preparation device and method for a gel-state electronic liquid (e-liquid) are provided. The preparation device includes a negative-pressure chamber and a cooling element, where the negative-pressure chamber is provided therein with a porous e-liquid containing chamber. A temperature controller is configured to control the temperature of the cooling element, and a gap between the porous e-liquid containing chamber and the cooling element forms an e-liquid containing cavity.