Spanning Stopper for Aerosol Device Debris Management
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Solution Overview
Problem
Existing aerosol-generating devices face challenges in ensuring the aerosol-generating article is optimally received in the heating chamber, providing effective feedback to the user, and preventing contamination of the heating chamber with unwanted residues.
Innovation Solution
The aerosol-generating device incorporates a stopper arranged transversally at the distal portion of the cavity, which securely stops the aerosol-generating article and prevents unwanted debris accumulation by allowing air to flow around it, thereby facilitating the automatic shedding of debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a stopper is placed at the distal portion of the cavity to stop the aerosol-generating article, then the article positioning is improved, but debris may accumulate on the stopper surface
Solution Approach 1:
The stopper is designed with a spanning structure that divides the cavity space, creating gaps between the stopper elements. This segmentation prevents continuous debris accumulation by allowing debris to fall through or be swept away, while still providing effective stopping contact for the aerosol-generating article.
Solution Approach 2:
Airflow is utilized to flow from the distal end around the stopper into the cavity. This pneumatic action helps prevent debris accumulation by continuously moving air through the cavity, which can carry away loose debris and prevent it from settling on the stopper surface.
2Object-generated harmful factors
If the stopper spans the distal portion of the cavity to prevent debris accumulation, then debris shedding is improved, but air flow may be obstructed
Solution Approach 1:
The spanning stopper is designed with gaps or openings in its structure, segmenting the solid barrier into discrete elements. This allows air to flow through and around the stopper while still providing sufficient surface area to push debris off during article insertion and removal cycles.
Solution Approach 2:
The stopper is arranged to span across the cavity in a manner that creates three-dimensional airflow paths around it. Rather than a flat blocking surface, the stopper configuration allows air to move in multiple directions, maintaining flow while providing debris shedding functionality.
3Object-affected harmful factors
If the stopper is arranged to allow air flow around it, then air flow is improved, but the stopping force may be reduced
Solution Approach 1:
The stopper consists of multiple spanning elements rather than a single solid barrier. These segmented elements provide sufficient stopping force through their combined surface area while creating channels for air flow between them, balancing both requirements.
Solution Approach 2:
The stopper elements may feature curved or rounded surfaces that facilitate smooth air flow around them while maintaining effective contact area for stopping the aerosol-generating article. The curvature reduces turbulence and maintains laminar flow patterns.
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The invention relates to an aerosol-generating device (10) that comprises a cavity (14) for receiving an aerosol-generating article. The aerosol-generating article (16) comprises an aerosol-forming substrate. The device comprises a heating element (20) arranged at least partly surrounding the cavity. The device further comprises a stopper (18). The stopper is arranged at a distal portion or distal of the cavity. The stopper is configured to stop the aerosol-generating article, when the aerosol-generating article contacts the stopper. The stopper is arranged transversally spanning the distal portion of the cavity. The stopper is arranged such that air can flow from distal of the stopper around the stopper into the cavity. The invention further relates to an aerosol generating system comprising an aerosol-generating device and an aerosol generating article comprising aerosol-forming substrate.