Fibrous Mouthpiece Component with Embedded Tubular Elements
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Solution Overview
Problem
The use of aerosol-former materials in tobacco heating devices can lead to an increase in the mass of aerosol delivered, resulting in a higher mouthpiece temperature, which may be uncomfortable for users.
Innovation Solution
A component for an aerosol provision system is designed with a body of fibrous material and tubular elements embedded within, where the tubular elements are circumferentially and longitudinally surrounded by the fibrous material, creating a cooling segment that reduces the temperature of the aerosol and the mouthpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If aerosol-former materials are used in tobacco heating devices, then the mass of aerosol delivered increases, but the mouthpiece temperature increases making it uncomfortable for users
Solution Approach 1:
The mouthpiece is segmented into distinct functional zones: a cooling segment comprising porous material through which cooling air flows, and a non-porous segment. This segmentation allows different regions to perform different functions - the cooling segment actively reduces temperature while the non-porous segment maintains structural integrity and aerosol flow paths.
Solution Approach 2:
Cooling air acts as an intermediary substance that flows through the porous cooling segment, absorbing heat from the aerosol and mouthpiece structure. This intermediary cooling air mediates between the hot aerosol generation source and the user's mouth, reducing the temperature without requiring active cooling mechanisms.
2Temperature
If a cooling segment with porous material is added to the mouthpiece, then the temperature of aerosol and mouthpiece is reduced, but the device complexity increases
Solution Approach 1:
The cooling function is merged into the mouthpiece body itself rather than being a separate attachment. The porous cooling segment is integrated directly into the mouthpiece structure, combining thermal management with the aerosol delivery function in a single unified component.
Solution Approach 2:
The cooling segment utilizes the user's own inhalation airflow as the cooling medium. The porous material allows the inhaled air to pass through and cool the aerosol passively, without requiring external power sources, active cooling systems, or additional components beyond the porous structure itself.
3Temperature
If tubular elements are embedded within fibrous material, then the cooling efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The cooling segment is formed from porous material with controlled porosity and pore size distribution. This porous structure provides inherent pathways for cooling air flow while maintaining structural integrity, eliminating the need for precisely positioned tubular elements or complex internal channels that would require high manufacturing precision.
Data Source
AI summary
A component for an article for use in or as an aerosol provision system, the component including a body of fibrous material. First and second tubular elements extend through the body of fibrous material, substantially along a common axis, and each of the first and second tubular elements are circumferentially surrounded by said fibrous material. A component can include a body of fibrous material and a tubular element embedded within the body, such that it is circumferentially and longitudinally surrounded by the fibrous material forming said body. An article can have a downstream end, and include a body of fibrous material and a tubular element circumferentially surrounded by said fibrous material, wherein the tubular element extends to a first longitudinal end of said body and is spaced from a second longitudinal end of said body, and wherein the longitudinal end of said body to which the tubular element extends is spaced from the downstream end of the article.