Cap-Supported Fluid-Permeable Heater for Stable Vaporization
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Solution Overview
Problem
Heater assemblies in aerosol-generating systems with fluid permeable heating elements are fragile and require improved stability and manufacturing simplicity.
Innovation Solution
A cap with a hollow body and a substantially flat electrically conductive heating element, supported by a cap that integrates a holder and capillary medium, enhances stability and simplifies manufacturing, allowing for efficient vaporization of aerosol-forming substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fluid permeable heating element is used for vaporization, then vaporization efficiency is improved, but structural stability deteriorates
Solution Approach 1:
The heating element is integrated directly into the cap structure, merging two previously separate components (heating element and cap) into a single unified structure. This integration provides structural support while maintaining the fluid permeable properties needed for vaporization efficiency.
Solution Approach 2:
The heating element uses a composite structure combining a porous substrate (for fluid permeability) with electrically conductive heating material (for vaporization). This composite approach maintains both the vaporization efficiency and structural integrity.
2Stability of the object's composition
If a complex holder structure is added to support the heating element, then structural stability is improved, but device complexity increases
Solution Approach 1:
The holder function is merged into the cap structure itself. The cap is designed with integrated features that provide both protective enclosure and structural support for the heating element, eliminating the need for a separate holder component.
Solution Approach 2:
The cap serves multiple functions: it protects the heating element, provides structural support, maintains structural stability, and integrates the holder function. This multi-functionality reduces overall device complexity while maintaining stability.
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 robust and efficient heater assembly that ensures consistent vaporization of aerosol-forming substrates while reducing manufacturing complexity and improving rigidity.
Implementation Method 1
a substantially flat electrically conductive and fluid permeable heating element configured to vaporise an aerosol-forming substrate
Implementation Method 2
The cartridge portion may comprise not only the supply of aerosol-forming substrate and an electrically operated heater assembly, but also a mouthpiece. A heater assembly with a fluid permeable heating element may have a fragile structure.
Data Source
AI summary
A fluid permeable heater assembly for an aerosol-generating system includes a cap and a substantially flat electrically conductive and fluid permeable heating element. The cap includes a hollow body with a first cap opening and a second cap opening. The first cap opening is opposite to the second cap opening. The heating element is configured to vaporise aerosol-forming substrate. The heating element is mounted on the cap, such that the heating element extends across the first cap opening. A cartridge for an aerosol-generating system includes the heater assembly, a liquid storage portion, a mouth piece, and a retainer.