Removable Extractor Layout for Clean Aerosol Airflow
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Solution Overview
Problem
Existing aerosol-generating devices face issues with debris from aerosol-forming substrates accumulating and obstructing the air-flow path, making it difficult to clean and affecting the user experience.
Innovation Solution
The aerosol-generating device features a movable extractor with a radially positioned air inlet and a heater aperture that prevents debris from entering the air-flow path, allowing easy cleaning by removing the extractor for maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the extractor is designed with an aperture for heater penetration, then the heater can access the aerosol-generating article, but debris falls out of the extractor and accumulates in the air-flow path
Solution Approach 1:
The extractor is divided into functionally separate zones: an aperture zone for heater penetration and an air-flow channel zone for air intake. By segmenting these functions spatially, the design prevents debris from the aperture zone from contaminating the air-flow path, while still allowing the heater to access the aerosol-generating article effectively.
Solution Approach 2:
The air-flow channel acts as an intermediary structure that separates the debris-generating aperture from the clean air intake path. This intermediary channel guides air flow around the aperture, preventing direct contact between incoming air and debris, thus maintaining air-flow integrity while preserving heater access functionality.
2Productivity
If the air-flow path is positioned near the heater aperture, then air can efficiently reach the aerosol-generating article, but cleaning becomes difficult due to debris accumulation
Solution Approach 1:
The extractor is designed as a removable component that can be extracted from the aerosol-generating device. This extraction capability allows users to remove the extractor for cleaning, separating the debris-contaminated areas from the main device body. The air-flow channel and aperture remain positioned for efficient air flow during operation, but the entire assembly can be removed for maintenance.
Solution Approach 2:
The extractor transitions from a static structure to a dynamic, movable component that can be positioned in different states (inserted for operation, removed for cleaning). This dynamic capability allows the system to optimize both air flow efficiency during use and cleaning accessibility during maintenance, resolving the contradiction between productivity and ease of repair.
3Reliability
If the extractor maintains integrity during removal, then the aerosol-generating article is protected, but debris still accumulates around the heater base
Solution Approach 1:
The extractor is designed as a removable component that can be extracted from the device. When removed, it takes with it the debris accumulated around the heater base, effectively cleaning the area. The extractor maintains integrity during removal to protect the aerosol-generating article, while its removability enables subsequent cleaning of the heater base region.
Solution Approach 2:
The extractor serves as a disposable or recyclable component that can be removed and cleaned or replaced. By discarding the extractor (or removing it for cleaning), debris accumulated around the heater base is eliminated. This approach maintains article integrity during operation while providing a mechanism for debris removal through extractor replacement or cleaning.
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
Maintains air-flow integrity and simplifies cleaning, enhancing user experience by preventing debris accumulation and ensuring consistent aerosol generation.
Implementation Method 1
a heater for heating the aerosol-generating article
Implementation Method 2
The extractor further defines an air-flow channel for allowing air flow into the cavity
Data Source
AI summary
An elongated aerosol-generating device to receive an aerosol-generating article is provided, including a heater extending longitudinally and to penetrate an internal portion of the article; and an extractor to extract the article and being slidable between first and second positions, the first being an operating position with the heater contacting the article, and the second being an extraction position with the heater separated from the article, the extractor being removable for cleaning and including a cavity to receive the article, a first aperture defined through an end-wall of the cavity for the heater to penetrate the cavity when the extractor is moved between the second and the first positions, the extractor defining an air-flow channel to allow air flow into the cavity, an inlet of the air-flow channel being radially-outward of the first aperture, and the first aperture and the air-flow channel arranged to retain debris from the article.