Aerosol generating device with inductor

The magnetic flux concentrator in the aerosol generating device addresses inefficiencies by focusing electromagnetic heat on the susceptor, enhancing heating efficiency and reducing unwanted heating of external components.

JP2025114750AInactive Publication Date: 2025-08-05PHILIP MORRIS PRODUCTS SA
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Patent Information

Application Number
JP2025078601
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2016-08-31
Filing Date
2025-05-09
Publication Date
2025-08-05
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing aerosol generating devices using induction heating suffer from inefficiencies due to eddy currents and hysteresis losses in adjacent components, leading to undesired heating and reduced efficiency.

Method used

The device incorporates a magnetic flux concentrator around the inductor coil to focus the electromagnetic field towards the chamber, enhancing heating efficiency and reducing unwanted heating of external components by distorting the electromagnetic field.

Benefits of technology

The magnetic flux concentrator improves the efficiency of aerosol generation by concentrating heat within the susceptor while minimizing unwanted heating of adjacent items, thus optimizing the device's performance.

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Abstract

To provide an electrically operated aerosol-generating device (100) for heating an aerosol-generating article (10) including an aerosol-forming substrate (20) by heating a susceptor element (30) positioned to heat the aerosol-forming substrate.SOLUTION: The device includes a housing (110) defining a chamber (120) to receive at least a portion of the aerosol-generating article, an inductor (200) including an inductor coil (210) disposed around at least a portion of the chamber, and a power source (140) connected to the inductor coil and configured to provide a high frequency electric current to the inductor coil such that, in use, the inductor coil generates a fluctuating electromagnetic field to heat the susceptor element and thereby heat the aerosol-forming substrate.SELECTED DRAWING: Figure 2
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Citation Information

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