An aerosol-generating device having a uniform heat-conducting element

EP4766193A1Pending Publication Date: 2026-07-01PHILIP MORRIS PRODUCTS SA
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
PHILIP MORRIS PRODUCTS SA
Filing Date
2024-08-16
Publication Date
2026-07-01

AI Technical Summary

Technical Problem

Existing aerosol-generating devices face challenges in achieving uniform heating of aerosol-forming substrates, leading to inefficient release of volatile materials and potential burning, which results in undesirable compounds and flavors.

Method used

The aerosol-generating device incorporates a tubular heat-conducting element with a cylindrical inner surface that forms a curved plane, directly contacting the aerosol-generating article. An inductor coil surrounds the heat-conducting element, generating an alternating magnetic field for inductive heating, while a resistive heating coil provides additional external heating, ensuring simultaneous internal and external heating for uniform substrate heating.

Benefits of technology

This configuration facilitates more uniform heating of the aerosol-forming substrate, enhancing the release of volatile materials without risking burning, thereby improving the quality and consistency of the aerosol produced.

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Abstract

Aerosol-generating device (10) comprising a tubular heat-conducting element (28) comprising a cylindrical inner surface (23) forming a curved plane. The cylindrical inner surface at least partially defines a chamber (16) for receiving at least a portion of an aerosol-generating article (102) so that an aerosol-generating article received within the chamber directly contacts the cylindrical inner surface. The aerosol-generating device also comprises an inductor coil (24) extending around at least a portion of the heat-conducting element. The inductor coil is arranged in direct contact with an outer surface (21) of the tubular heat-conducting element. The aerosol-generating device also comprises a power supply (42) and control circuitry (40) connected to the inductor coil and configured to provide an alternating electric current to the inductor coil such that, in use, the inductor coil generates an alternating magnetic field.
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