Atomizer Coil Layout to Prevent E-Liquid Leakage
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Solution Overview
Problem
Aerosol generating devices experience leakage of liquid aerosol generating material when heating is stopped, as the liquid flows out of the heating wire, causing various issues.
Innovation Solution
The atomizer design includes a wire wound in a spiral shape on the liquid delivery element, with spaced coils and end portions angled differently from the direction of gravity, featuring ridge portions to prevent aerosol generating material from flowing out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the wire is wound tightly on the liquid delivery element, then heating efficiency is improved, but liquid leakage increases
Solution Approach 1:
The wire configuration varies at different locations: the intermediate portion is wound tightly on the liquid delivery element for efficient heating, while the end portions extend outward and are positioned to prevent liquid leakage. This local differentiation resolves the contradiction between heating efficiency and leakage prevention.
Solution Approach 2:
The wire is divided into three functional segments: a first end portion, an intermediate portion, and a second end portion. Each segment serves a different function - the intermediate portion provides heating through tight winding, while the end portions provide leakage prevention by extending outward and being positioned away from the liquid delivery element surface.
2Object-generated harmful factors
If the wire coils are spaced apart, then liquid leakage is reduced, but heating efficiency decreases
Solution Approach 1:
Different regions of the wire have different coil spacing: the intermediate portion has tight winding (small spacing) for heating efficiency, while the end portions have larger spacing and extend outward to prevent leakage. This localized variation in coil spacing resolves the contradiction.
3Stability of the object's composition
If the wire end portions contact the liquid delivery element surface, then structural stability is improved, but liquid leakage increases
Solution Approach 1:
The wire is segmented into different functional portions: the intermediate portion contacts the liquid delivery element for structural stability, while the end portions extend outward away from the surface to prevent liquid leakage, achieving both stability and leakage prevention.
Solution Approach 2:
The wire configuration differs at different locations: the intermediate portion is positioned to contact the liquid delivery element for stability, while the end portions are positioned away from the surface to prevent leakage. This local differentiation resolves the contradiction between stability and leakage prevention.
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
Prevents aerosol generating material from leaking out of the heating wire, addressing the leakage issue and maintaining device functionality.
Implementation Method 1
a liquid delivery element configured to absorb an aerosol generating material of a liquid storage
Implementation Method 2
a wire configured to heat the aerosol generating material and wound on a surface of the liquid delivery element
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An atomizer includes a liquid delivery element configured to absorb an aerosol generating material of a liquid storage and a wire configured to heat the aerosol generating material and wound on a surface of the liquid delivery element, wherein the wire is wound in a spiral shape such that coils of the wire are spaced apart from each other by a certain distance on the surface of the liquid delivery element, one of end portions of the wire is in contact with a first portion of the surface of the liquid delivery element, and the other one of the end portions of the wire is in contact with a second portion of the surface of the liquid delivery element.