An inductive heating apparatus for inductively heating a susceptor of an aerosol forming body, which includes the susceptor and an aerosol source, includes: a power supply, an alternating current generation circuit that generates alternating current from power supplied from the power supply; an inductive heating circuit for inductively heating the susceptor, and a control unit configured to detect the susceptor based on an impedance of a circuit to which the alternating current generated by the alternating current generation circuit is supplied, and start the inductive heating in response to the susceptor being detected.

An aerosol generating device includes a heater configured to heat a cigarette to generate an aerosol, an inductance channel, a capacitance channel, and a controller configured to generate a control signal using information received from the inductance channel and the capacitance channel A cigarette insertion space that is configured to receive the cigarette is provided within the aerosol generating device, and the controller is configured to: measure an amount of change in capacitance in the capacitance channel based on an amount of change in frequency of current flowing through the inductance channel exceeding a first reference value, due to an object adjacent to the cigarette insertion space, and control a start of a supply of power to the heater based on the amount of change in the capacitance that is measured exceeding a second reference value.

An aerosol-forming article includes: an aerosol-forming substrate; a heating layer encircling a concave portion, the aerosol-forming substrate being arranged in the concave portion; and a cover layer covering at least a part of the heating layer and an opening of the concave portion. The aerosol-forming substrate is located between the heating layer and the cover layer. A through hole is provided at a position of the cover layer corresponding to the opening. The heating layer generates eddy currents in a magnetic field to generate heat so as to heat the aerosol-forming substrate to form aerosols.

A heating body includes: a substrate; a heating layer arranged on the substrate; and a protruding structure layer arranged on the heating layer. The protruding structure layer includes a plurality of protruding units arranged on the heating layer at intervals or the protruding structure layer has a grid shape. In an embodiment, the heating body further includes: an insulating and heat-conducting layer arranged between the protruding structure layer and the heating layer.

Provided herein are an induction heating-type aerosol-generating article and device with improved heating efficiency. The induction heating-type aerosol-generating article according to some embodiments of the present disclosure includes a medium portion which includes an aerosol-forming substrate, a susceptor element which forms a closed loop to wrap around at least a portion of the medium portion and which is configured to, due to induction heating being performed therein, heat at least a portion of the medium portion, and an outer wrapper which wraps around at least a portion of the susceptor element. In this case, since the susceptor element is embedded in the aerosol-generating article and directly transmits heat to the medium portion, and an induced current may smoothly flow through the formed closed loop, heating efficiency may be significantly improved.

An aerosol generation substrate includes: a main body for generating aerosol after being heated, magnetic particles being distributed in the main body, the magnetic particles generating heat through electromagnetic induction to heat the main body; and a cooling member sleeved on the main body and for assisting in cooling of the main body.

A cartridge is provided for an electrically heatable aerosol-generating system, the cartridge including: an aerosol-forming substrate including a liquid held in a capillary material; and a susceptor element including first and second fluid-permeable portions, the first fluid-permeable portion being disposed on a first side of the capillary material, and the second fluid-permeable portion being disposed on a second side of the capillary material opposite to the first side such that the capillary material is located in between the first and the second fluid-permeable portions of the susceptor element, the susceptor element being electrically isolated from other electrically conductive components. A heater assembly for an electrically heatable aerosol-generating system, and an electrically heatable aerosol-generating system, are also provided.

A device and method for converting a consumable into an aerosol with high heat without burning the consumable by packaging the consumable containing an internal susceptor inside a housing. A first end of the housing can be capped with an end cap and a second end of the housing can have a mouthpiece. The housing containing the consumable and the susceptor can be placed inside a case with an inductive heating element configured to heat the susceptor. Heating the susceptor results in the consumable being released as an aerosol for inhalation.

An induction heating assembly for a vapour generating device includes a rechargeable power source and an induction coil. The induction coil is arranged to heat, in use, a susceptor and is also arranged to receive, in use, an electromagnetic field generated by an external source to charge the power source.

An inductive heating device (1) for heating an aerosol-forming substrate (20) comprising a susceptor (21) comprises: a device housing (10) a DC power source (11) for providing a DC supply voltage (V.sub.DC) and a DC current (I.sub.DC) a power supply electronics (13) comprising a DC/AC converter (132), the DC/AC converter (132) comprising an LC load network (1323) comprising a series connection of a capacitor (C2) and an inductor (L2) having an ohmic resistance (R.sub.Coil), a cavity (14) in the device housing (10) for accommodating a portion of the aerosol-forming substrate (20) to inductively couple the inductor (L2) of the LC load network (1323) to the susceptor (21). The power supply electronics (13) further comprises a microcontroller (131) to determine from the DC supply voltage (V.sub.DC) and the DC current (I.sub.DC) an apparent ohmic resistance (R.sub.a), and from the apparent ohmic resistance (R.sub.a) the temperature (T) of the susceptor (21).