Holder for Aerosol Generating Article with Heat Source Cage
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Solution Overview
Problem
Aerosol generating articles with combustible heat sources expose users and their environment to high temperatures, and existing designs either allow combustion products to enter the aerosol or fail to maintain a blind heat source effectively.
Innovation Solution
A holder with a cage that surrounds the heat source, allowing air access while keeping it isolated from direct contact, and a seal to prevent combustion products from entering the aerosol stream, combined with a design that dissipates heat to reduce the temperature of the exposed elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a combustible heat source is exposed to allow proper combustion, then combustion efficiency is improved, but temperature of exposed elements increases
Solution Approach 1:
The patent introduces a holder as an intermediary component between the combustible heat source and the user/environment. The holder includes a mouthpiece with a passage that receives the aerosol generating article, positioning the heat source in a way that allows combustion while preventing direct exposure of high-temperature elements to the user. This mediator structure enables both proper combustion and temperature reduction.
2Power
If a non-blind heat source with air flow channels is used, then heat transfer via convection is improved, but combustion products enter the aerosol stream
Solution Approach 1:
The patent segments the heat source design into distinct functional zones. The holder structure creates separate pathways: one for combustion air supply to the heat source and another for aerosol delivery to the user. This segmentation prevents combustion products from contaminating the aerosol stream while maintaining efficient heat transfer through the aerosol generating substrate.
Solution Approach 2:
The patent applies local quality by creating different functional regions within the holder. The mouthpiece passage is designed with specific characteristics for aerosol flow, while the heat source area allows for combustion. The holder structure provides localized control over air flow and heat transfer, ensuring that combustion products remain separated from the aerosol generation zone.
3Object-generated harmful factors
If a blind heat source is used, then combustion products are reduced, but heat transfer primarily via conduction limits efficiency
Solution Approach 1:
The holder acts as a thermal mediator that facilitates heat transfer from the blind heat source to the aerosol generating substrate. The mouthpiece and passage structure provide thermal pathways that enable efficient conduction and convection of heat to the substrate without requiring the heat source to be non-blind, thus maintaining the benefit of reduced combustion products while achieving adequate heat transfer efficiency.
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 holder effectively reduces the temperature of exposed elements and prevents combustion products from entering the aerosol, providing a safer and more controlled smoking experience by maintaining a blind heat source and minimizing the impact of puffing on the aerosol composition.
Implementation Method 1
Heated smoking articles having blind combustible heat sources may transfer heat to the aerosol-generating substrate primarily via conduction
Implementation Method 2
Heated smoking articles may also be configured so that the heat source is non-blind. Heated smoking articles having non-blind combustible heat sources transfer heat to the aerosol-generating substrate primarily via convection through one or more air flow channels through the heat source
Implementation Method 3
As the released compounds cool, they condense to form an aerosol that is inhaled by the user
Implementation Method 4
the holder effectively reduces the temperature of exposed elements and prevents combustion products from entering the aerosol
Data Source
Figure 1~2
Figure 3~4A
Figure 4B~5
AI summary
A holder (200) for an aerosol generating article (100) includes a mouthpiece (106) having a mouth end and a distal end. The mouthpiece defines a passage (213) extending from the mouth end to the distal end. The passage is configured to receive the aerosol generating article inserted in a direction from the distal end towards the mouth end. The holder further includes a cage (220) extending from the mouthpiece and configured to surround at least a portion of a heat source (102) of the aerosol generating article and configured to allow air to access the heat source. The holder may also optionally include a seal (230) extending from an inner surface of the cage. The seal is arranged to surround and contact the aerosol generating article.