Multi-Layer Resistive Mesh Heater-Wick Element for E-Cigarettes
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Solution Overview
Problem
Existing electronic smoking devices lack an efficient and cost-effective heater-wick element that can effectively vaporize liquid materials while minimizing material complexity and ensuring consistent aerosol production.
Innovation Solution
A heater-wick element comprising multiple layers of electrically resistive mesh material, integrally formed with wicking and heatable portions, which reduces material complexity and enhances capillary action for consistent aerosol production, and is designed to be both a heater and wick in a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heater-wick element is designed with separate heater and wick components, then the functional separation is clear, but the device complexity and material requirements increase
Solution Approach 1:
The patent combines the heater and wick into a single integrated heater-wick element made of electrically resistive mesh material. The mesh structure simultaneously performs wicking (liquid transport) and heating (aerosol generation) functions, eliminating the need for separate components and reducing overall device complexity while maintaining reliable aerosol production
Solution Approach 2:
The heater-wick element serves multiple functions within a single component: it acts as a wick to transport liquid via capillary action, a heater to vaporize the liquid through resistive heating, and a structural support element. This multi-functionality reduces the number of parts needed and simplifies the overall device architecture
2Reliability
If multiple layers of mesh material are used in the heater-wick element, then capillary action and aerosol consistency improve, but manufacturing complexity increases
Solution Approach 1:
The heater-wick element is constructed from multiple discrete mesh layers stacked together. Each layer contributes to the overall capillary action and heating surface area, and the segmented structure allows for modular manufacturing and assembly while achieving consistent aerosol production through the cumulative effect of multiple layers
Solution Approach 2:
The patent uses composite construction by stacking multiple mesh layers to create a heater-wick element with enhanced properties. The composite structure combines the wicking capability of mesh material with its heating properties, and the layered configuration optimizes both capillary action and thermal performance
3Device complexity
If the heater-wick element is integrally formed with wicking and heatable portions, then material complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The wicking portion and heatable portion are merged into a single integrally formed heater-wick element. The mesh material inherently provides both wicking channels and heating surface, so integral formation simplifies the structure by eliminating joints or interfaces between separate components, reducing material complexity despite requiring precise manufacturing
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 reliable, efficient, and cost-effective means of vaporizing liquid materials, ensuring consistent aerosol production and extending the device's operational time, while protecting the liquid from oxygen and light degradation, thus maintaining a high shelf-life and cleanliness.
Implementation Method 1
a heater-wick element that wicks liquid from the liquid supply region
Implementation Method 2
at least two layers of an electrically resistive mesh material... heats the liquid material to produce an aerosol
Data Source
AI summary
An electronic smoking article includes a liquid supply region including liquid material and a heater-wick element operable to wick liquid material and heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol. The heater-wick element comprises two or more layers of electrically resistive mesh material.