Capillary Medium Duct Abutting Air Impingement Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aerosol-generating systems, such as handheld vaping systems, face challenges in achieving efficient aerosolization and droplet growth due to hot spots in the heater assembly and limited airflow, which affects vapor mixing and cooling.
Innovation Solution
The system incorporates a fluid permeable heater assembly with an arrangement of electrically conductive filaments forming a non-planar air impingement surface, aligned with the liquid storage housing opening, and a capillary medium that enhances airflow turbulence and vortex creation, accelerating vapor cooling and mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional heater assembly with planar heating surface is used, then the structure is simple, but hot spots occur in the middle part affecting aerosolization quality
Solution Approach 1:
The heating element is designed with a curved or domed surface instead of a planar surface. This curvature creates a non-planar air impingement surface that distributes airflow more evenly across the heating surface, eliminating hot spots in the middle part while maintaining simple manufacturing processes.
2Device complexity
If limited airflow is used through the capillary medium, then the structure is simple, but vapor mixing and cooling are insufficient
Solution Approach 1:
The capillary medium is designed with optimized porosity and pore distribution to enhance airflow turbulence and vortex creation. The porous structure naturally promotes mixing and cooling of volatized vapors without requiring additional complex components, thereby improving aerosol formation efficiency.
3Ease of manufacture
If the heater assembly does not extend across the housing opening, then manufacturing is simpler, but contact area with liquid substrate is reduced
Solution Approach 1:
The heater assembly is designed as a modular component that extends across the housing opening, allowing it to be manufactured separately and then installed as a complete unit. This segmentation maintains manufacturing simplicity while maximizing the heating contact area with the liquid aerosol-forming substrate.
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
This configuration improves aerosolization by increasing airflow and mixing of volatized vapors, leading to faster cooling and enhanced aerosol formation, while maintaining a robust and simple manufacturing design.
Implementation Method 1
The capillary medium draws the liquid aerosol-forming substrate to the electrically conductive filament arrangement
Implementation Method 2
an arrangement of electrically conductive filaments arranged to define a non-planar air impingement surface
Implementation Method 3
the capillary medium defines an opening for allowing airflow to pass through the capillary medium... enhanced mixing and acceleration of airflow is achieved by the introduction of turbulence and vortices
Implementation Method 4
accelerates the airflow of the aerosol from the heater assembly towards the mouthpiece, thereby further improving the aerosolization through faster cooling of the volatized vapors
Data Source
AI summary
The assembly includes a capillary medium defining a duct, and an air impingement structure including electrically conductive filaments, a surface of the capillary medium being connected to a first surface of the air impingement structure, a first end of the duct abutting the first surface of the air impingement structure, at least one first portion of the air impingement structure extending into the surface of the capillary medium.