Inductively Heated Aerosol Device Reusable Susceptor
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Solution Overview
Problem
Aerosol-generating devices with integral susceptors are either disposable due to inextricable integration with the article or have difficult-to-clean susceptor designs within the device, limiting their reusability and accessibility for maintenance.
Innovation Solution
A reusable susceptor that is displaceable between an operation position within the heating chamber and a preparation position outside the chamber, allowing for easy cleaning and substrate replacement, facilitated by inductive heating which does not require wiring, enabling the susceptor to be physically unattached and freely accessible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the susceptor is inextricably integrated in the aerosol-generating article, then the article can be used as a disposable consumable, but the susceptor cannot be cleaned or maintained
Solution Approach 1:
The susceptor is separated from the aerosol-generating article into two independent components: a reusable susceptor that can be removed and cleaned, and a disposable article that can be easily replaced. This segmentation resolves the contradiction by allowing the susceptor to be maintained while the article remains disposable.
Solution Approach 2:
The susceptor is extracted from the disposable article structure, allowing it to be used as a separate reusable component. The induction source heats the susceptor wirelessly, enabling the susceptor to function independently without being permanently integrated into the disposable article.
2Duration of action of stationary object
If the susceptor is integrated in the heating chamber of the device, then the susceptor can be reused multiple times, but the susceptor becomes difficult and cumbersome to clean due to limited accessibility
Solution Approach 1:
The susceptor is extracted from the fixed position within the heating chamber and designed as a removable component. The wireless inductive heating capability allows the susceptor to be taken out for cleaning and maintenance without compromising its heating function, as it will be heated by the induction source when placed back in the heating chamber.
Solution Approach 2:
The susceptor transitions from a static, fixed position to a dynamic, removable position. The susceptor can be moved between the heating chamber for operation and external positions for cleaning and maintenance, providing flexibility while maintaining reusability.
3Ease of operation
If the susceptor is made physically unattached from the device, then the susceptor becomes freely displaceable for easy cleaning, but the susceptor may not remain securely positioned during operation
Solution Approach 1:
The mechanical connection system (wires, cables, or fixed mounting) is replaced with wireless inductive heating. The induction source generates an electromagnetic field that heats the susceptor without physical contact, allowing the susceptor to be freely displaceable while maintaining reliable heating function during operation.
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 susceptor's displaceability enhances its reusability and accessibility for cleaning and maintenance, maintaining efficient aerosol generation while preventing residue buildup and extending the device's lifespan.
Implementation Method 1
an induction source for generating an alternating electromagnetic field. The field causes at least one of, heat generating eddy currents or heat generating hysteresis losses, in the material of a susceptor
Implementation Method 2
The field causes at least one of, heat generating eddy currents or heat generating hysteresis losses, in the material of a susceptor
Implementation Method 3
The field causes at least one of, heat generating eddy currents or heat generating hysteresis losses, in the material of a susceptor
Implementation Method 4
Aerosol-generating devices and systems based on inductively heating an aerosol-forming substrate
Implementation Method 5
The thus heated susceptor is in thermal proximity of an aerosol-forming substrate which is capable of releasing volatile compounds that form an aerosol upon heating
Data Source
AI summary
The present invention relates to an aerosol-generating device (1) for generating an aerosol by inductively heating an aerosol-forming substrate (30). The device comprises a device housing (10) including a heating chamber (16) for receiving an aerosol-forming substrate to be heated and an induction source for generating an alternating electromagnetic field within the heating chamber. The device further comprises a reusable susceptor (20) configured to get into removable contact with the aerosol-forming substrate for heating the substrate. The susceptor is displaceable between an operation position defined by the susceptor being arranged within the heating chamber (16), and a preparation position defined by the susceptor being arranged at least partially outside of the heating chamber. The invention further relates to aerosol-generating system comprising an aerosol-generating device according to invention and an aerosol-generating article including aerosol-forming substrate to be heated.