Aerosol Article Tubular Structure for Cooling and Rigidity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-combustible aerosol provision systems face challenges in efficiently delivering aerosol while maintaining a lightweight and rigid structure, with components that can withstand high temperatures and provide optimal aerosol formation and cooling.
Innovation Solution
A non-combustible aerosol provision system comprising an article with specific tubular elements and a ratio of wall thickness to internal radius, along with overlapping paper layers and ventilation apertures, to enhance aerosol expansion and cooling, while maintaining a lightweight and rigid structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the second tubular wall is made thinner to reduce weight, then the article becomes lighter, but the structural strength and rigidity are compromised
Solution Approach 1:
The second tubular wall is constructed as a composite structure comprising an inner layer and an outer layer of different materials. The inner layer provides structural strength and rigidity, while the outer layer provides thermal insulation and chemical resistance. This composite construction allows the wall to maintain high strength despite reduced thickness, resolving the contradiction between weight reduction and strength maintenance.
Solution Approach 2:
Different regions of the tubular wall are assigned different material properties according to their functional requirements. The inner portion requires high mechanical strength to maintain structural integrity, while the outer portion requires thermal and chemical resistance. By applying local quality differentiation, the design achieves optimal performance with minimal material usage.
2Temperature
If the second tubular element axial length is increased to improve aerosol cooling, then aerosol cooling is enhanced, but the article length and complexity increase
Solution Approach 1:
The second tubular element is nested within the housing structure, with its axial length extending partially within and partially outside the housing. This nesting arrangement allows the cooling function to be integrated into the existing device architecture without proportionally increasing the overall article length, effectively resolving the contradiction between cooling performance and compactness.
3Productivity
If the first and second tubular elements are made larger to improve aerosol formation, then aerosol formation is enhanced, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention specifies precise parameter ranges for the tubular elements, including wall thickness ratios (0.05-0.5), axial length ratios (1.2-2.0), and material composition percentages. By optimizing these parameters within defined ranges, the design achieves effective aerosol formation while maintaining manufacturability and avoiding excessive complexity.
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 system achieves improved aerosol formation and cooling, with a lightweight and rigid design that facilitates easy insertion and use, while providing a temperature differential to protect temperature-sensitive components.
Implementation Method 1
aerosol-generating material section comprising aerosol-generating material and at least 5% aerosol-former material by weight of the aerosol-generating material
Implementation Method 2
a first tubular element immediately downstream of the aerosol-generating material section, the first tubular element defining a first hollow cavity
Implementation Method 3
the second tubular element defining a second hollow cavity... the ratio of the volume of the second hollow cavity to the volume of the first hollow cavity can be between about 6.5 and about 8
Data Source
AI summary
An article for use in or as a non-combustible aerosol provision system includes an aerosol-generating material section including aerosol-generating material and at least 5% aerosol-former material by weight of the aerosol-generating material. The article also includes a first tubular element immediately downstream of the aerosol-generating material section, the first tubular element defining a first hollow cavity and having a first tubular wall, and a second tubular element immediately downstream of the first tubular element, the second tubular element including a second tubular wall having a wall thickness of less than about 320 μm and the second tubular element having an axial length of greater than about 15 mm.