Inductively heated aerosol-generating device comprising a susceptor assembly

An aerosol generation and induction heating technology, applied in induction heating, electric heating devices, coil devices, etc., can solve problems such as overheating of sensor components

Pending Publication Date: 2021-04-30
PHILIP MORRIS PROD SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this temporarily increased heating power induced by the controller can be detrimental if the monitored change in current (actually due to the second susceptor material reaching the Curie temperature) is mistakenly identified as a puff by the user. Causes undesired overheating of the susceptor assembly

Method used

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  • Inductively heated aerosol-generating device comprising a susceptor assembly
  • Inductively heated aerosol-generating device comprising a susceptor assembly
  • Inductively heated aerosol-generating device comprising a susceptor assembly

Examples

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Embodiment Construction

[0084] figure 1 A first exemplary embodiment of an aerosol generating system 1 according to the invention is schematically shown. System 1 comprises an aerosol-generating device 10 according to the invention and an aerosol-generating article 100 configured for use with the device and comprising an aerosol-forming substrate to be heated.

[0085] The aerosol-generating device 10 includes a cylindrical receiving cavity 20 defined within the proximal portion 12 of the device 10 for receiving at least a distal portion of the article 100 therein. The device 10 also includes an induction source comprising an induction coil 30 for generating an alternating, in particular high frequency, electromagnetic field. In this embodiment, the induction coil 30 is a helical coil circumferentially surrounding the cylindrical receiving cavity 20 . In addition, the device also includes a susceptor assembly 60 arranged in the receiving cavity so as to experience the electromagnetic field generate...

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Abstract

The present invention relates to an inductively heated aerosol-generating device (10) for generating an aerosol by heating an aerosol-forming substrate. The device comprises a receiving cavity (20) for receiving the aerosol-forming substrate (130) to be heated. The device further comprises an induction source (30) which is configured to generate an alternating electromagnetic field. Moreover, the device comprises a susceptor assembly (60) which his configured and arranged to inductively heat the aerosol-forming substrate within the receiving cavity under the influence of the alternating magnetic field generated by the induction source. The susceptor assembly comprises a first susceptor (61) and a second susceptor (62). The first susceptor comprises a first susceptor material having a positive temperature coefficient of resistance, and the second susceptor comprises a second ferromagnetic or ferrimagnetic susceptor material having a negative temperature coefficient of resistance. The invention further relates to an aerosol-generating system comprising such an aerosol-generating device and an aerosol-generating article (100) for use with the device which comprises the aerosol-forming substrate to be heated.

Description

technical field [0001] The present invention relates to an induction heating aerosol generating device for generating an aerosol by heating an aerosol forming substrate. The invention also relates to an aerosol-generating system comprising such an aerosol-generating device and an aerosol-generating article for use with the device comprising an aerosol-forming substrate to be heated. Background technique [0002] Aerosol-generating systems based on inductively heating an aerosol-forming substrate capable of forming an inhalable aerosol upon heating are generally known in the art. Such a system may include an aerosol generating device having a receiving cavity for receiving a substrate to be heated. The substrate may be an integral part of an aerosol-generating article configured for use with the device. For heating the substrate, the device may comprise an induction heater comprising a susceptor and an induction source. The induction source is configured to generate an alt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/465
CPCA24D1/20A24F40/20A24F40/465A24F40/57H05B6/105H05B6/36H05B6/108
Inventor I·N·奇诺维科I·陶里诺
Owner PHILIP MORRIS PROD SA
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