WO2025232995A1

WO2025232995A1 - Aerosol-generating device with identification module and dual heating system component

Info

Publication number: WO2025232995A1
Application number: PCT/EP2025/052037
Authority: WO
Inventors: Truong-Dat Olivier NGUYEN; Larry Sacha Baudet; Lucas Gattoni
Original assignee: Philip Morris Products SA
Current assignee: Philip Morris Products SA
Priority date: 2024-05-08
Filing date: 2025-01-28
Publication date: 2025-11-13
Anticipated expiration: 2026-11-08
Also published as: WO2025233324A1

Abstract

The invention relates to an aerosol-generating device configured for use with a plurality of different types of aerosol-generating articles. The aerosol-generating device comprises a cavity for receiving an aerosol-generating article of the any one of the plurality different types. The aerosol-generating device further comprises a first heating system component and a second heating system component. The aerosol-generating device further comprises an identification module configured to detect a characteristic of the aerosol-generating article received in the cavity. The invention further relates to an aerosol-generating system comprising the aerosol-generating device and an aerosol-generating article comprising aerosol-forming substrate.

Description

AEROSOL-GENERATING DEVICE WITH IDENTIFICATION MODULE AND DUAL HEATING SYSTEM COMPONENT

The present invention relates to an aerosol-generating device. The present invention further relates to an aerosol-generating system.

It is known to provide an aerosol-generating device for generating an inhalable vapor. Such devices may heat aerosol-forming substrate to a temperature at which one or more components of the aerosol-forming substrate are volatilised without burning the aerosolforming substrate. Aerosol-forming substrate may be provided as part of an aerosol-generating article. The aerosol-generating article may have a rod shape for insertion of the aerosolgenerating article into a cavity, such as a heating chamber, of the aerosol-generating device. A heating element may be arranged around the heating chamber for heating the aerosolforming substrate once the aerosol-generating article is inserted into the heating chamber of the aerosol-generating device.

It would be desirable to have an aerosol-generating device with improved reliability. It would be desirable to have an aerosol-generating device which can only be used with authenticated aerosol-generating articles. It would be desirable to have an aerosol-generating device with improved heating of the aerosol-forming substrate of the aerosol-generating article.

According to an embodiment of the invention there may be provided an aerosolgenerating device configured for use with a plurality of different types of aerosol-generating articles. The aerosol-generating device may comprise a cavity for receiving an aerosolgenerating article of the any one of the plurality different types. The aerosol-generating device may further comprise a first heating system component and a second heating system component. The aerosol-generating device may further comprise an identification module configured to detect a characteristic of the aerosol-generating article received in the cavity.

According to an embodiment of the invention there is provided an aerosol-generating device configured for use with a plurality of different types of aerosol-generating articles. The aerosol-generating device comprises a cavity for receiving an aerosol-generating article of the any one of the plurality different types. The aerosol-generating device further comprises a first heating system component and a second heating system component. The aerosol-generating device further comprises an identification module configured to detect a characteristic of the aerosol-generating article received in the cavity.

Providing an aerosol-generating device having two heating system components may improve heating of an aerosol-forming substrate of the aerosol-generating article. Providing an aerosol-generating device having an identification module may enable one or both of authentication of the aerosol-generating article and operating the aerosolgenerating device based on a detected type of aerosol-generating article.

The identification module may comprise an authenticator configured to detect an authentication marker of the aerosol-generating article received in the cavity. The authentication marker may be indicative of whether the received aerosol-generating article may be permitted to be used with the aerosol-generating device. The identification module may in addition or alternatively comprise a classifier configured to detect a classification marker of the aerosol-generating article received in the cavity. The classification marker may be indicative of the type of aerosol-generating article received in the cavity from the plurality of different types of aerosol-generating articles.

The aerosol-generating device may further comprise a controller configured to permit or prohibit supply of power to the heating system components to generate aerosol from the aerosol-generating article received in the cavity depending upon the detected authentication marker.

The controller may be configured to select a functionality of the aerosol-generating device, preferably a heating profile from a plurality of heating profiles, depending upon the detected classification marker. The controller may be configured to supply power to the heating system components based on the selected heating profile.

The controller may be configured to, in dependence of the detected classification marker, adjust one or more of: an amplitude of a current supplied to the heating system components; a frequency and/or duration of current pluses supplied to the heating system components; a time period of power supply; a temperature of the heating system components; a signal powering the heating system components and a maximum number of power pulses to the heating system components.

The aerosol-generating device may further comprise a memory storing a plurality of different heating profiles. Each one of the different heating profiles may be stored in association with data indicative of one of the plurality different types of aerosol-generating articles.

The memory may store one heating profile for each different type of aerosol-generating article compatible with the aerosol-generating device. In other words, the aerosol-generating devices memory may contain a list of aerosol-generating articles compatible with the aerosolgenerating device. For these aerosol-generating articles, power supply to the heating system components is permitted when the respective aerosol-generating article is authenticated by the controller based upon the authenticator output. Each entry of a compatible aerosolgenerating article in the list of aerosol-generating articles in the memory of the aerosolgenerating device may comprise a heating profile for the specific aerosol-generating article. For each different type of aerosol-generating article, the heating profile may be different. Alternatively, one or more of the heating profiles may be similar or identical for different types of aerosol-generating articles. The provisioning of the different heating profiles may enable an optimized aerosol generation for different types of aerosol-generating articles.

The controller may be configured to select the heating profile from of the plurality of different heating profiles stored in the memory that may be associated with data indicative of the type of aerosol-generating article that matches the determined type of aerosol-generating article.

A heating profile may comprise instructions to heat a heating arrangement to one or more target temperatures or target temperature ranges, wherein each target temperature may be applied for a respective section of the heating profile. Two or more of the plurality of different heating profiles may differ from one another by a predetermined maximum number of puffs being permitted before the respective heating profile may be ended. Such heating profiles may be particularly advantageous if the amount of aerosol-forming substrate in different types of aerosol-generating articles are different. These two or more different heating profiles may define the same target tern perature(s) or target temperature ranges for each respective section of the heating profile, although the predetermined maximum number of puffs being permitted before the respective heating profile ends may differ for each respective heating profile.

Two or more of the plurality of different heating profiles may differ from one another by a predetermined maximum duration being permitted before the respective heating profile may be ended. Such heating profiles may be particularly advantageous if the amount of aerosolforming substrate in different types of aerosol-generating articles are different. These two or more different heating profiles may define the same target temperature(s) or target temperature ranges for each respective section of the heating profile, although the predetermined maximum duration being permitted before the respective heating profile ends may differ for each respective heating profile.

Two or more of the plurality of different heating profiles may differ from one another by a predetermined maximum volume of aerosol generated being permitted before the respective heating profile may be ended. Such heating profiles may be particularly advantageous if the amount of aerosol-forming substrate in different types of aerosol-generating articles are different. These two or more different heating profiles may define the same target temperature(s) or target temperature ranges for each respective section of the heating profile, although the predetermined maximum volume of aerosol generated being permitted before the respective heating profile ends may differ for each respective heating profile.

The controller may be configured to, in dependence of the detected classification marker, control supply of power to the heating system component such that a first heating profile may be applied to a first type of aerosol-generating article received in the cavity and such that a different second heating profile may be applied to a second different type of aerosol-generating article.

Similarly, the controller may be configured to, in dependence of the detected classification marker, control supply of power to the heating system component such that a third heating profile may be applied to a third type of aerosol-generating article received in the cavity. The third type of aerosol-generating article may be different from both the first type of aerosol-generating article and second type of aerosol-generating article. The number of aerosol-generating article types and associated number of heating profiles may be chosen as desired. In other words, the number of different aerosol-generating article types and associated different heating profiles may be more than three.

The first heating system component may comprise an induction coil. The first heating system component may be an induction coil. The induction coil may be configured to inductively heat a susceptor. The susceptor may be the heating element. The susceptor may be part of the aerosol-generating device. More preferred, however, the susceptor may be part of the aerosol-generating article.

The induction coil may be at least partly wound around the cavity. The induction coil may be wound around a central part of the cavity.

The induction coil may be arranged outside of the cavity. A sidewall of the cavity may be arranged between the induction coil and the inside of the cavity.

The induction coil may be a helical induction coil.

The induction coil may be arranged distanced from a proximal end of the cavity. The proximal end of the cavity may be an open end of the cavity through which the aerosolgenerating article can be inserted into the cavity.

The induction coil may be distanced from a distal end of the cavity. The distal end of the cavity may be a base of the cavity. The distal end of the cavity may be closed.

The induction coil may be arranged between the proximal end of the cavity and the distal end.

The controller may be operatively connected with the induction coil. The controller may be configured to detect a change in conductance or inductance of an inductive heating arrangement including the induction coil during operation of the induction coil. The controller may be configured to control operation of the induction coil depending upon the detected change in conductance or inductance.

The characteristics of changes of the conductance or inductance of the inductive heating arrangement may depend upon one or more of the shape and size and material of a susceptor heated by the induction coil. The susceptor may be part of the aerosol-generating article. Different types of aerosol-generating articles may comprise different susceptors. Hence, the changes in the conductance or inductance of the induction coil may be indicative of the type of aerosol-generating article received in the cavity.

The controller may be operatively connected with the induction coil. The controller may be configured to detect a supply current drawn by the induction coil during operation. The supply current drawn may also be denoted as the “current drawn”.

More generally, the controller may be configured to detect a supply current drawn by an inductive heating arrangement comprising the induction coil and potentially further elements, particularly the susceptor that may be part of the aerosol-generating article. The controller may be configured to detect a supply voltage to the inductive heating arrangement. The whole inductive heating arrangement may comprise further elements such as capacitors and wiring. The inductive heating arrangement may draw a supply current during operation. The supply current may be indicative of a susceptor being present in the cavity or not. Hence, the drawn supply current may be indicative of an aerosol-generating article being received in the cavity. Monitoring of the supply current may thus be utilized as an indicator for the presence or absence of the aerosol-generating article within the cavity. The drawn supply current may be indicative of the conductance or inductance of the susceptor arrangement. The ratio of the supply current to the supply voltage may be indicative of the conductance or inductance of the susceptor arrangement.

The magnitude of the drawn supply current may be indicative of a type of susceptor and thus of a type of aerosol-generating article. The magnitude of the ratio of the drawn supply current to the supply voltage may be indicative of a type of susceptor and thus of a type of aerosol-generating article. Exemplarily, a first type of aerosol-generating article may comprise a tobacco-containing substrate and have a first type of susceptor. A second type of aerosolgenerating article may comprise a tobacco free substrate and may have a different second type of susceptor. The first type of susceptor may be different from the second type of susceptor for example in shape and material. The drawn supply current (and/or ratio of the drawn supply current to the supply voltage) may be different over time during a heating operation when the first susceptor is utilized in contrast to the utilization of the second susceptor. In other words, the current drawn (and/or ratio of the drawn supply current to the supply voltage), monitored by the controller, may be indicative of the conductance or inductance of the susceptor, which may be different during operation with different susceptors.

Exemplarily, the controller may detect a maximum and a minimum conductance or inductance of a susceptor indicative of the type of susceptor. More specifically, the controller may be configured to determine a first value and a second value of an electrical property of the susceptor being reached during heating of the susceptor in use of the device when the aerosol-generating article is received by the cavity. The controller may further be determined to determine the difference between the first value and the second value, and to identify an article type of the aerosol-generating article received by the cavity based on the determined difference. The first value and the second value of the electrical property may be values indicative of the electrical conductance of the susceptor or values indicative of the supply current drawn by the inductive heating arrangement in heating the susceptor.

This controller functionality may be utilized in addition or as an alternative to one or both of the authentication marker and the classification marker of the aerosol-generating article and the associated authorization/classification of the device conducted by the controller. Particularly preferred, the above-described monitoring of the electrical conductance of the susceptor may be utilized in addition to the/classification described herein. This further monitored parameter may increase reliability. Further, this further monitored parameter may enable one or both of activation and deactivation of additional device functionalities.

The controller may be configured to control operation of the induction coil depending upon the detected supply current drawn by the induction coil.

The supply current drawn by the induction coil may be indicative of the inductance of the induction coil. Changes in the inductance of the induction coil may lead to changes in the supply current drawn by the induction coil.

The aerosol-generating device may further comprise an additional classifier configured to detect an additional classification marker of the aerosol-generating article received in the cavity, the additional classification marker indicative of the type of aerosol-generating article received in the cavity from the plurality of different types of aerosol-generating articles.

The additional classifier may comprise the induction coil and preferably the classification marker may comprise the susceptor.

In other words, the classification of the aerosol-generating article received in the cavity may be improved or more types of aerosol-generating articles may be classified by utilizing the classifier as described herein as well as the additional classifier. Exemplarily, the (first) classifier may be visible ink arranged on the periphery of the aerosol-generating article and the additional classifier may be the shape/size/material of the susceptor. Detecting both of these classifiers by the aerosol-generating device may improve classification quality and/or may enable qualification of more types of different aerosol-generating articles.

The aerosol-generating device may further comprise a power supply and a controller, wherein the controller may be configured to control supply of electrical energy from the power supply to the induction coil.

The controller may be configured to supply an AC to the induction coil. The aerosolgenerating device may comprise a DC/AC converter to convert a DC of the power supply to the AC for the induction coil. The controller may control supply of the power from the power supply to the induction coil via the DC/AC converter. The second heating system component may be configured as a resistive heating system component.

The second heating system component may comprise a resistive heater. The second heating system may be a resistive heater.

The second heating system component may be at least partly wound around a sidewall of the cavity. The second heating system component may be arranged between the first heating system component and the sidewall of the cavity.

The second heating system component may at least partly form the sidewall of the cavity.

The second heating system component may have an axial extension corresponding to the axial extension of the first heating system component.

The second heating system component may comprise a resistive heating track. The resistive heating track may be arranged on a polyimide substrate layer. The polyimide substrate layer may be wound around the periphery of the sidewall of the cavity.

The second heating system component may at least partly form the sidewall of the cavity. Parts of the second heating system component may directly contact the inner of cavity while different parts of the second heating system component may be arranged around the periphery of the sidewall of the cavity.

The longitudinal airflow channels in the sidewall of the cavity may be recessed. The longitudinal airflow channels in the sidewall of the cavity may allow air to be drawn into the longitudinal airflow channels in the sidewall of the cavity through the proximal end of the cavity. This may particularly be enabled even if an aerosol-generating article is received in the cavity. In this case, ambient air may be drawn into the longitudinal airflow channels in the sidewall of the cavity between the outer periphery of the aerosol-generating article and the sidewall of the cavity.

When the air reaches the proximal end (base) of the cavity, the air may be channelled to make a U-turn so as to enter the aerosol-generating article at a proximal end face of the aerosol-generating article. The air may thus reverse its direction of flow at the base of the cavity so as to enter into the aerosol-generating article. Subsequently, the air may flow through the aerosol-generating article.

Particularly preferred, air may be preheated by the second heating system component in the longitudinal airflow channels in the sidewall of the cavity before entering the aerosolgenerating article. In addition or alternatively, aerosol-forming substrate of the aerosolgenerating article may be heated by the second heating system component.

The second heating system component may be arranged on or heating inwards protruding portions (segments/ribs) of the sidewall of the cavity. The inwards protruding portions of the sidewall of the cavity may be arranged between the longitudinal airflow channels in the sidewall of the cavity. The inwards protruding portions of the sidewall of the cavity may be referred to a ribs. The second heating system component may be arranged on the periphery ribs.

Each rib may comprise a separate second heating system component or, particularly preferred, the second heating system component may be arranged fully surrounding the ribs.

The ribs may contact the outer periphery of the aerosol-generating article, when the aerosol-generating article is received in the cavity of the aerosol-generating device.

The second heating system component may be arranged directly abutting the longitudinal airflow channels in the sidewall of the cavity. The second heating system component may be arranged in contact with the outer periphery of the longitudinal airflow channels.

The first heating system component may be configured to heat a heating element to a temperature of between 250°C and 400°C.

The second heating system component may be configured to be heated to a temperature of between 60°C and 220°C.

The controller may be configured to control supply of electrical energy from the power supply to the second heating system component, and wherein, with respect to the total electrical energy supplied to the first heating system component and to the second heating system component, one of: at least 10% of the total energy may be supplied to the first heating system component, at least 20% of the total energy may be supplied to the first heating system component, at least 30% of the total energy may be supplied to the first heating system component, at least 40% of the total energy may be supplied to the first heating system component, at least 50% of the total energy may be supplied to the first heating system component, a maximum of 90% of the total energy may be supplied to the first heating system component, a maximum of 80% of the total energy may be supplied to the first heating system component, a maximum of 70% of the total energy may be supplied to the first heating system component, a maximum of 60% of the total energy may be supplied to the first heating system component, a maximum of 50% of the total energy may be supplied to the first heating system component, at least 10% of the total energy may be supplied to the second heating system component, at least 20% of the total energy may be supplied to the second heating system component, at least 30% of the total energy may be supplied to the second heating system component, at least 40% of the total energy may be supplied to the second heating system component, at least 50% of the total energy may be supplied to the second heating system component, a maximum of 90% of the total energy may be supplied to the second heating system component, a maximum of 80% of the total energy may be supplied to the second heating system component, a maximum of 70% of the total energy may be supplied to the second heating system component, a maximum of 60% of the total energy may be supplied to the second heating system component, and a maximum of 50% of the total energy may be supplied to the second heating system component.

The aerosol-generating device may further comprise a user interface enabling a user to select one or more of: an electrical energy supply to the first heating system component, an electrical energy supply to the second heating system component, a maximum electrical energy supply to the first heating system component, a maximum electrical energy supply to the second heating system component, and an energy distribution between the first heating system component and the second heating system component.

The user interface may comprise a display. The user interface may comprise a touch sensitive display. The user interface may comprise one or more buttons.

The user interface may be configured to allow a user to choose the total energy supplied to one or both the first heating system component and the second heating system component. The user interface may be configured to allow a user to choose a heating profile applied to one or both the first heating system component and the second heating system component. The user interface may be configured to allow a user to choose an energy quota between the first heating system component and the second heating system component. The energy quota may refer to the distribution of power between the first heating system component and the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 10% energy to the first heating system component and 90% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 20% energy to the first heating system component and 80% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 30% energy to the first heating system component and 70% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 40% energy to the first heating system component and 60% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 50% energy to the first heating system component and 50% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 60% energy to the first heating system component and 40% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 70% energy to the first heating system component and 30% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 80% energy to the first heating system component and 20% energy to the second heating system component. For example, the user interface may be configured to allow a user to choose an energy quota of 90% energy to the first heating system component and 10% energy to the second heating system component.

The identification module may be configured as one or both of an authentication module and a classification module. Particularly preferred, the identification module consists of an authentication module and a classification module.

As an alternative to the herein described option of a user choosing an energy quota, the output of the identification module, particularly preferred of the classification module, may be utilized by the controller to automatically choose the energy quota. The energy quota may be a parameter of a heating profile as described herein.

The identification module may comprise a first optical emitter and a first optical detector configured to receive electromagnetic radiation from the first optical emitter.

The first optical emitter may be configured to emit light in the visible spectrum.

The light emitted by the first optical emitter may be reflected by a colour marker of the aerosol-generating article and then received by the first optical detector.

The corresponding output of the first optical detector may be send to the controller. The controller may authenticate the aerosol-generating article based on the detector output of the first optical detector.

The identification module may comprise a second optical emitter and a second optical detector configured to receive electromagnetic radiation from the second optical emitter.

The second optical emitter may be configured to emit light in the invisible spectrum.

The light emitted by the second optical emitter may be one or more of reflected, absorbed and reemitted by an invisible marker of the aerosol-generating article and then received by the second optical detector.

The corresponding output of the second optical detector may be send to the controller. The controller may classify the aerosol-generating article based on the detector output of the first optical detector.

Particularly preferred, the controller may choose a heating profile on basis of the detector output of the second optical detector.

The first optical emitter may be different from the second optical emitter. The first optical emitter may utilize a different spectrum than the second optical emitter. The first optical emitter may be arranged at a different position than the second optical emitter.

The first optical detector may be different from the second optical detector. The first optical detector may utilize a different spectrum than the second optical detector. The first optical detector may be arranged at a different position than the second optical detector.

The identification module may be configured to output identification data, wherein the controller may be configured to control a function of the aerosol-generating device based on the identification data. Controlling the function of the aerosol-generating device may comprise selecting a heating profile for one or both of the first heating system component and the second heating system component.

The invention further relates to an aerosol-generating system comprising the aerosolgenerating device as described herein and an aerosol-generating article comprising a heating element.

The heating element may be a susceptor.

The heating element may be strip-shaped. The heating element may be rectangular. The heating element may be flat.

The aerosol-generating article may comprise a colour marker indicative or one or both of an authentication and a classification of the aerosol-generating article. The colour marker may be referred to as authentication marker. Particularly preferred, the colour marker is indicative of a type of aerosol-generating article so as to enable authentication of the aerosolgenerating article. Exemplarily, the controller may differentiate between aerosol-generating articles that may be used with the aerosol-generating article and that may not be used with the aerosol-generating device.

The authentication marker of the aerosol-generating article may comprise a fluorescent ink or phosphorescent ink. The classification marker of the aerosol-generating article may comprise a visible ink. The authentication marker may partially or fully circumscribe the aerosol-generating article. The classification marker may partially or fully circumscribe the aerosol-generating article. The classification marker may comprise one or more coloured bands. The classification marker may comprise a plurality of coloured bands, preferably wherein each one of the coloured bands having a different colour to the other coloured bands. The classification marker may comprise a first coloured band having a first colour, and a second coloured band having a second colour, preferably wherein the first colour and the second colour are different to one another. The classification marker and the authentication marker may partially or fully overlap with one another. The aerosol-generating article may comprise a susceptor configured to be heated by an induction coil of the aerosol-generating device. The susceptor may have one or more predetermined electrical properties detectable by the aerosol-generating device.

The aerosol-generating article may comprise an invisible marker indicative or one or both of an authentication and a classification of the aerosol-generating article. The invisible marker may be referred to as classification marker. Particularly preferred, the invisible marker is indicative of a class of aerosol-generating article so as to enable classification of the aerosolgenerating article. Exemplarily, the controller may differentiate between different aerosolgenerating articles that may be different from each other in one or more of aerosol-forming substrate, duration of a user experience and generated aerosol volume. The authentication marker may overlie the classification marker or vice versa. In other words, the authentication marker and the classification marker may arranged on top of each other. This may have the advantage that both the authentication marker and the classification marker may be detected by the aerosol-generating device at the same time.

In addition or alternatively, the different classification of two aerosol-generating articles may be utilized to use two different heating profiles.

The controller may be configured to, in dependence of the detected classification marker, control supply of power to the heating element such that a first heating profile may be applied to a first type of aerosol-generating article received in the cavity and such that a different second heating profile may be applied to a second different type of aerosol-generating article.

Similarly, the controller may be configured to, in dependence of the detected classification marker, control supply of power to the heating element such that a third heating profile may be applied to a third type of aerosol-generating article received in the cavity. The third type of aerosol-generating article may be different from both the first type of aerosolgenerating article and second type of aerosol-generating article. The number of aerosolgenerating article types and associated number of heating profiles may be chosen as desired. In other words, the number of different aerosol-generating article types and associated different heating profiles may be more than three. The controller may be configured to determine that the detected authentication marker may be of a type of aerosol-generating article not permitted for use with the aerosol-generating device, and in response prohibit the supply of power to the heating element.

The controller may be configured to determine that the detected authentication marker may be of a type of aerosol-generating article not permitted for use with aerosol-generating device by failing to find data corresponding to the detected authentication marker in a memory of the aerosol-generating device.

The controller may be configured to determine that the detected authentication marker may be permitted for use with the aerosol-generating device, and in response permit the supply of power to the heating element.

The controller may be configured to determine that the detected authentication marker may be of a type of aerosol-generating article permitted for use with aerosol-generating device by successfully finding data corresponding to the detected authentication marker in a memory of the aerosol-generating device.

The controller may comprise a lookup table with prestored data of non-acceptable types of aerosol-generating articles, wherein the controller prohibiting supply of power to a heating element may comprise a comparison of the detected authentication marker with the prestored data.

The controller may comprise a lookup table with prestored data of acceptable types of aerosol-generating articles, and wherein the controller permitting supply of power to a heating element may comprise a comparison of the detected authentication marker with the prestored data. Particularly, the controller may permit supply of power to a heating element when a comparison of the detected authentication marker with the prestored data results in a match between the detected authentication marker and an entry in the prestored data.

As used herein, the terms ‘proximal’, ‘distal’, ‘downstream’ and ‘upstream’ are used to describe the relative positions of components, or portions of components, of the aerosolgenerating device in relation to the direction in which a user draws on the aerosol-generating device during use thereof.

The aerosol-generating device may comprise a mouth end through which in use an aerosol exits the aerosol-generating device and is delivered to a user. The mouth end may also be referred to as the proximal end. In use, a user draws on the proximal or mouth end of the aerosol-generating device in order to inhale an aerosol generated by the aerosolgenerating device. Alternatively, a user may directly draw on an aerosol-generating article inserted into an opening at the proximal end of the aerosol-generating device. The opening at the proximal end may be an opening of the cavity. The cavity may be configured to receive the aerosol-generating article. The aerosol-generating device comprises a distal end opposed to the proximal or mouth end. The proximal or mouth end of the aerosol-generating device may also be referred to as the downstream end and the distal end of the aerosol-generating device may also be referred to as the upstream end. Components, or portions of components, of the aerosol-generating device may be described as being upstream or downstream of one another based on their relative positions between the proximal, downstream or mouth end and the distal or upstream end of the aerosol-generating device.

As used herein, an ‘aerosol-generating device’ relates to a device that interacts with an aerosol-forming substrate to generate an aerosol. The aerosol-forming substrate may be part of an aerosol-generating article, for example part of a smoking article. An aerosol-generating device may be a smoking device that interacts with an aerosol-forming substrate of an aerosolgenerating article to generate an aerosol that is directly inhalable into a user’s lungs thorough the user's mouth. An aerosol-generating device may be a holder. The device may be an electrically heated smoking device. The aerosol-generating device may comprise a housing, electric circuitry, a power supply, a heating chamber and a heating element.

As used herein with reference to the present invention, the term ‘smoking’ with reference to a device, article, system, substrate, or otherwise does not refer to conventional smoking in which an aerosol-forming substrate is fully or at least partially combusted. The aerosol-generating device of the present invention is arranged to heat the aerosol-forming substrate to a temperature below a combustion temperature of the aerosol-forming substrate, but at or above a temperature at which one or more volatile compounds of the aerosol-forming substrate are released to form an inhalable aerosol.

The aerosol-generating device may comprise electric circuitry. The electric circuitry may comprise a microprocessor, which may be a programmable microprocessor. The microprocessor may be part of the controller. The electric circuitry may comprise further electronic components. The electric circuitry may be configured to regulate a supply of power to the heating element. Power may be supplied to the heating element continuously following activation of the aerosol-generating device or may be supplied intermittently, such as on a puff- by-puff basis. The power may be supplied to the heating element in the form of pulses of electrical current. The electric circuitry may be configured to monitor the electrical resistance of the heating element, and preferably to control the supply of power to the heating element dependent on the electrical resistance of the heating element.

The aerosol-generating device may comprise a power supply, typically a battery, within a main body of the aerosol-generating device. In one embodiment, the power supply is a Lithium-ion battery. Alternatively, the power supply may be a Nickel-metal hydride battery, a Nickel cadmium battery, or a Lithium based battery, for example a Lithium-Cobalt, a Lithium- Iron-Phosphate, Lithium Titanate or a Lithium-Polymer battery. As an alternative, the power supply may be another form of charge storage device such as a capacitor. The power supply may require recharging and may have a capacity that enables to store enough energy for one or more usage experiences; for example, the power supply may have sufficient capacity to continuously generate aerosol for a period of around six minutes or for a period of a multiple of six minutes. In another example, the power supply may have sufficient capacity to provide a predetermined number of puffs or discrete activations of the heating element.

The cavity of the aerosol-generating device may have an open end into which the aerosol-generating article is inserted. The open end may be a proximal end. The cavity may have a closed end opposite the open end. The closed end may be the base of the cavity. The closed end may be closed except for the provision of air apertures arranged in the base. The base of the cavity may be flat. The base of the cavity may be circular. The base of the cavity may be arranged upstream of the cavity. The open end may be arranged downstream of the cavity. The cavity may have an elongate extension. The cavity may have a longitudinal central axis. A longitudinal direction may be the direction extending between the open and closed ends along the longitudinal central axis. The longitudinal central axis of the cavity may be parallel to the longitudinal axis of the aerosol-generating device.

The cavity may be configured as a heating chamber. The cavity may have a cylindrical shape. The cavity may have a hollow cylindrical shape. The cavity may have a shape corresponding to the shape of the aerosol-generating article to be received in the cavity. The cavity may have a circular cross-section. The cavity may have an elliptical or rectangular crosssection. The cavity may have an inner diameter corresponding to the outer diameter of the aerosol-generating article.

An airflow channel may run through the cavity. Ambient air may be drawn into the aerosol-generating device, into the cavity and towards the user through the airflow channel. Downstream of the cavity, a mouthpiece may be arranged or a user may directly draw on the aerosol-generating article. The airflow channel may extend through the mouthpiece.

In any of the aspects of the disclosure, the heating element may comprise an electrically resistive material. Suitable electrically resistive materials include but are not limited to: semiconductors such as doped ceramics, electrically "conductive" ceramics (such as, for example, molybdenum disilicide), carbon, graphite, metals, metal alloys and composite materials made of a ceramic material and a metallic material. Such composite materials may comprise doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbides. Examples of suitable metals include titanium, zirconium, tantalum platinum, gold and silver. Examples of suitable metal alloys include stainless steel, nickel-, cobalt-, chromium-, aluminium- titanium- zirconium-, hafnium-, niobium-, molybdenum-, tantalum-, tungsten-, tin-, gallium-, manganese-, gold- and iron-containing alloys, and super-alloys based on nickel, iron, cobalt, stainless steel, Timetai® and iron-manganese-aluminium based alloys. In composite materials, the electrically resistive material may optionally be embedded in, encapsulated or coated with an insulating material or vice-versa, depending on the kinetics of energy transfer and the external physicochemical properties required.

As described, in any of the aspects of the disclosure, the heating element may be part of an aerosol-generating device. The aerosol-generating device may comprise an internal heating element or an external heating element, or both internal and external heating elements, where "internal" and "external" refer to the aerosol-forming substrate. An internal heating element may take any suitable form. For example, an internal heating element may take the form of a heating blade. Alternatively, the internal heater may take the form of a casing or substrate having different electro-conductive portions, or an electrically resistive metallic tube. Alternatively, the internal heating element may be one or more heating needles or rods that run through the center of the aerosol-forming substrate. Other alternatives include a heating wire or filament, for example a Ni-Cr (Nickel-Chromium), platinum, tungsten or alloy wire or a heating plate. Optionally, the internal heating element may be deposited in or on a rigid carrier material. In one such embodiment, the electrically resistive heating element may be formed using a metal having a defined relationship between temperature and resistivity. In such an exemplary device, the metal may be formed as a track on a suitable insulating material, such as ceramic material, and then sandwiched in another insulating material, such as a glass. Heaters formed in this manner may be used to both heat and monitor the temperature of the heating elements during operation.

An external heating element may take any suitable form. For example, an external heating element may take the form of one or more flexible heating foils on a dielectric substrate, such as polyimide. The flexible heating foils can be shaped to conform to the perimeter of the substrate receiving cavity. Alternatively, an external heating element may take the form of a metallic grid or grids, a flexible printed circuit board, a molded interconnect device (MID), ceramic heater, flexible carbon fibre heater or may be formed using a coating technique, such as plasma vapour deposition, on a suitable shaped substrate. An external heating element may also be formed using a metal having a defined relationship between temperature and resistivity. In such an exemplary device, the metal may be formed as a track between two layers of suitable insulating materials. An external heating element formed in this manner may be used to both heat and monitor the temperature of the external heating element during operation.

As an alternative to an electrically resistive heating element, the heating element may be configured as an induction heating element. The induction heating element may comprise an induction coil and a susceptor. In general, a susceptor is a material that is capable of generating heat, when penetrated by an alternating magnetic field. When located in an alternating magnetic field. If the susceptor is conductive, then typically eddy currents are induced by the alternating magnetic field. If the susceptor is magnetic, then typically another effect that contributes to the heating is commonly referred to hysteresis losses. Hysteresis losses occur mainly due to the movement of the magnetic domain blocks within the susceptor, because the magnetic orientation of these will align with the magnetic induction field, which alternates. Another effect contributing to the hysteresis loss is when the magnetic domains will grow or shrink within the susceptor. Commonly all these changes in the susceptor that happen on a nano-scale or below are referred to as “hysteresis losses”, because they produce heat in the susceptor. Hence, if the susceptor is both magnetic and electrically conductive, both hysteresis losses and the generation of eddy currents will contribute to the heating of the susceptor. If the susceptor is magnetic, but not conductive, then hysteresis losses will be the only means by which the susceptor will heat, when penetrated by an alternating magnetic field. According to the invention, the susceptor may be electrically conductive or magnetic or both electrically conductive and magnetic. An alternating magnetic field generated by one or several induction coils heat the susceptor, which then transfers the heat to the aerosol-forming substrate, such that an aerosol is formed. The heat transfer may be mainly by conduction of heat. Such a transfer of heat is best, if the susceptor is in close thermal contact with the aerosol-forming substrate.

As used herein, the term ‘aerosol-generating article’ refers to an article comprising an aerosol-forming substrate that is capable of releasing volatile compounds that can form an aerosol. For example, an aerosol-generating article may be a smoking article that generates an aerosol that is directly inhalable into a user’s lungs through the user's mouth. An aerosolgenerating article may be disposable.

As used herein, the term ‘aerosol-forming substrate’ relates to a substrate capable of releasing one or more volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. An aerosol-forming substrate may conveniently be part of an aerosol-generating article or smoking article.

The aerosol-forming substrate may be a solid aerosol-forming substrate. The aerosolforming substrate may comprise both solid and liquid components. The aerosol-forming substrate may comprise a tobacco-containing material containing volatile tobacco flavour compounds which are released from the substrate upon heating. The aerosol-forming substrate may comprise a non-tobacco material. The aerosol-forming substrate may comprise an aerosol former that facilitates the formation of a dense and stable aerosol. Examples of suitable aerosol formers are glycerine and propylene glycol.

The aerosol-generating substrate preferably comprises homogenised tobacco material, an aerosol-former and water. Providing homogenised tobacco material may improve aerosol generation, the nicotine content and the flavour profile of the aerosol generated during heating of the aerosol-generating article. Specifically, the process of making homogenised tobacco involves grinding tobacco leaf, which more effectively enables the release of nicotine and flavours upon heating.

Below, there is provided a non-exhaustive list of non-limiting examples. Any one or more of the features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

Example 1 . An aerosol-generating device configured for use with a plurality of different types of aerosol-generating articles, the aerosol-generating device comprising: a cavity for receiving an aerosol-generating article of the any one of the plurality different types; a first heating system component and a second heating system component; an identification module configured to detect a characteristic of the aerosolgenerating article received in the cavity.

Example 2. The aerosol-generating device according to example 1 , wherein the first heating system component comprises an induction coil.

Example 3. The aerosol-generating device according to example 2, wherein the induction coil is at least partly wound around the cavity.

Example 4. The aerosol-generating device according to example 2 or 3, wherein the aerosol-generating device further comprises a power supply and a controller, wherein the controller is configured to control supply of electrical energy from the power supply to the induction coil.

Example 5. The aerosol-generating device according to any of the preceding examples, wherein the second heating system component is configured as a resistive heating system component.

Example 6. The aerosol-generating device according to example 5, wherein the resistive heating system component is at least partly wound around a sidewall of the cavity

Example 7. The aerosol-generating device according to example 5 or 6, wherein the resistive heating system component is at least partly forming the sidewall of the cavity.

Example 8. The aerosol-generating device according to any of the preceding examples, wherein the first heating system component is configured to heat a heating element to a temperature of between 250°C and 400°C.

Example 9. The aerosol-generating device according to any of the preceding examples, wherein the second heating system component is configured to be heated to a temperature of between 60°C and 220°C.

Example 10. The aerosol-generating device according to any of the preceding examples and example 4, wherein the controller is configured to control supply of electrical energy from the power supply to the second heating system component, and wherein, with respect to the total electrical energy supplied to the first heating system component and to the second heating system component, one of: at least 10% of the total energy is supplied to the first heating system component, at least 20% of the total energy is supplied to the first heating system component, at least 30% of the total energy is supplied to the first heating system component, at least 40% of the total energy is supplied to the first heating system component, at least 50% of the total energy is supplied to the first heating system component, a maximum of 90% of the total energy is supplied to the first heating system component, a maximum of 80% of the total energy is supplied to the first heating system component, a maximum of 70% of the total energy is supplied to the first heating system component, a maximum of 60% of the total energy is supplied to the first heating system component, a maximum of 50% of the total energy is supplied to the first heating system component, at least 10% of the total energy is supplied to the second heating system component, at least 20% of the total energy is supplied to the second heating system component, at least 30% of the total energy is supplied to the second heating system component, at least 40% of the total energy is supplied to the second heating system component, at least 50% of the total energy is supplied to the second heating system component, a maximum of 90% of the total energy is supplied to the second heating system component, a maximum of 80% of the total energy is supplied to the second heating system component, a maximum of 70% of the total energy is supplied to the second heating system component, a maximum of 60% of the total energy is supplied to the second heating system component, and a maximum of 50% of the total energy is supplied to the second heating system component.

Example 11. The aerosol-generating device according to example 10, wherein the aerosol-generating device further comprises a user interface enabling a user to select one or more of: an electrical energy supply to the first heating system component, an electrical energy supply to the second heating system component, a maximum electrical energy supply to the first heating system component, a maximum electrical energy supply to the second heating system component, and an energy distribution between the first heating system component and the second heating system component.

Example 12. The aerosol-generating device according to example 11 , wherein the user interface comprises a display.

Example 13. The aerosol-generating device according to any of the preceding examples, wherein the identification module is configured as one or both of an authentication module and a classification module.

Example 14. The aerosol-generating device according to any of the preceding examples, wherein the identification module comprises a first optical emitter and a first optical detector configured to receive electromagnetic radiation from the first optical emitter. Example 15. The aerosol-generating device according to example 14, wherein the first optical emitter is configured to emit light in the visible spectrum.

Example 16. The aerosol-generating device according to any of the preceding examples, wherein the identification module comprises a second optical emitter and a second optical detector configured to receive electromagnetic radiation from the second optical emitter.

Example 17. The aerosol-generating device according to example 16, wherein the second optical emitter is configured to emit light in the invisible spectrum.

Example 18. The aerosol-generating device according to any of the preceding examples, wherein the identification module is configured to output identification data, wherein the controller is configured to control a function of the aerosol-generating device based on the identification data.

Example 19. The aerosol-generating device according to example 18, wherein controlling the function of the aerosol-generating device comprises selecting a heating profile for one or both of the first heating system component and the second heating system component.

Example 20. An aerosol-generating system comprising the aerosol-generating device of any of the preceding examples and an aerosol-generating article comprising a heating element.

Example 21. The aerosol-generating system of example 20, wherein the heating element is a susceptor.

Example 22. The aerosol-generating system of example 20 or 21 , wherein the heating element is strip-shaped.

Example 23. The aerosol-generating system of any of examples 20 to 22, wherein the aerosol-generating article comprises a colour marker indicative or one or both of an authentication and a classification of the aerosol-generating article.

Example 24. The aerosol-generating system of any of examples 20 to 23, wherein the aerosol-generating article comprises an invisible marker indicative or one or both of an authentication and a classification of the aerosol-generating article.

Features described in relation to one embodiment may equally be applied to other embodiments of the invention.

The invention will be further described, by way of example only, with reference to the accompanying drawings in which:

Fig. 1 shows an aerosol-generating system comprising the aerosol-generating device and an aerosol-generating article; and Fig. 2 shows the cavity of the aerosol-generating device.

Figure 1 shows an aerosol-generating system comprising an aerosol-generating device 10 and an aerosol-generating article 12. The aerosol-generating article 12 comprises an aerosol-forming substrate. The aerosol-forming substrate may be part of a substrate portion of the aerosol-generating article 12.

The aerosol-generating article 12 can be received in the cavity 14 of the aerosolgenerating device 10. The cavity 14 is configured as a heating chamber. To heat the aerosolforming substrate of the aerosol-generating article 12 when the aerosol-generating article 12 is received in the cavity 14, the aerosol-generating device 10 comprises a first heating system component 16. In the aerosol-generating device 10 shown in Fig. 1 , the first heating system component 16 comprises an induction coil. The induction coil is configured for inductively heating the aerosol-forming substrate of the aerosol-generating article 12. The heating element, in the form of a susceptor strip, that is heated by the alternating magnetic field created by the induction coil, is arranged within the aerosol-forming substrate of the aerosol-generating article 12. In other words, the first heating system component 16 is preferably configured as an induction coil while the heating element that is heated is the susceptor which is not part of the aerosol-generating device 10 but rather part of the aerosol-generating article 12. Exemplarily, the susceptor is provided as a strip centrally arranged along the central longitudinal axis of the aerosol-generating article 12.

The induction coil is powered by a power supply 18. The power supply 18 is configured as a rechargeable battery. The power supply 18 is provided distal of the cavity 14.

The cavity 14 is provided at a proximal end of the aerosol-generating device 10. The cavity 14 has an opening for enabling insertion of the aerosol-generating article 12 into the cavity 14.

The aerosol-generating device 10 further comprises a controller 20. The controller 20 is configured to control supply of power from the power supply 18 to the induction coil.

In addition to the first heating system component 16, the aerosol-generating device further comprises a second heating system component. The second heating system component is not depicted in figure 1 and is described in the context of figure 2. However, the second heating system component is also provided in the aerosol-generating device 10 as shown in figure 1.

At a sidewall of the cavity 14, an identification module 21 is provided. In the preferred embodiment shown in figure 1 , the identification module 21 comprises an authenticator 22, a light emitter 24, a classifier 28 and a second emitter 32.

These elements will be described in the following. The authenticator 22 is provided to authenticate an aerosol-generating article 12 received in the cavity 14. The authenticator 22 comprises an optical detector configured to detect nonvisible light. The authenticator 22 faces the longitudinal central axis of the cavity 14 such that light reflected by the aerosol-generating article 12 or emitted by the aerosol-generating article 12 is detected by the authenticator 22. The authenticator 22 is connected with the controller 20. The controller 20 is configured to permit power to be supplied from the power supply 18 to the first heating system component 16 and the second heating system component when the controller 20 detects, depending upon the authenticator 22 output, that an aerosol-generating article 12 has been received in the cavity 14 that is accepted by the aerosol-generating device 10. The controller 20 comprises a lookup table to compare the authenticator 22 output with the prestored data in the lookup table. If there is a match between the authenticator 22 output and the prestored data in the lookup table, the authenticator 22 confirms that the received aerosol-generating article 12 is authenticated and consequently permits the supply of power from the power supply 18 to the first heating system component 16 and the second heating system component. If the controller 20 does not find a match between the output data from the authenticator 22 and the prestored data in the lookup table, the controller 20 prohibits supply of power from the power supply 18 to the first heating system component 16 and the second heating system component.

The aerosol-generating device 10 comprises a light emitter 24. The light is configured to emit light in the visible spectrum. The light emitter 24 is arranged at the sidewall of the cavity 14. The light emitter 24 is arranged adjacent the authenticator 22. When the aerosolgenerating article 12 is received in the cavity 14, the light emitter 24 is configured to emit light at the aerosol-generating article 12. The aerosol-generating article 12 comprises an authentication marker 26. The authentication marker 26 is preferably configured as a fluorescent ink or phosphorescent ink. The authentication marker 26 emits light in the nonvisible spectrum. The authentication marker 26 may emit the nonvisible light in reaction to absorbing light from the light emitter 24. The nonvisible light emitted by the authentication marker 26 may be spectrally shifted with respect to the light absorbed from the light emitter 24. Alternatively, the authentication marker 26 may absorb visible light when the aerosolgenerating article 12 is not received in the cavity 14 (i.e. ambient light) and emit nonvisible light towards the authentication marker 26 without receiving light from the light emitter 24. As a further alternative, the authentication marker 26 may both absorb visible light from the ambient environment as well as from the light emitter 24 and subsequently emit nonvisible light towards the authentication marker 26. As a particularly preferred embodiment, the light emitter 24 is configured to emit light in the nonvisible spectrum, preferably in the infrared spectrum, which is subsequently reflected by the authentication marker 26 or absorbed and reemitted by the authentication marker 26.

The aerosol-generating device 10 further comprises a classifier 28. The classifier 28 comprises an optical detector operating within the visible spectrum of light. The classifier 28 is arranged adjacent a second emitter 32. The classifier 28 is arranged at the sidewall of the cavity 14. The classifier 28 faces the longitudinal central axis of the cavity 14 for receiving light from a classification marker 30 of the aerosol-generating article 12 when the aerosolgenerating article 12 is received in the cavity 14. The classifier 28 is arranged similar to the authentication marker 26 but adjacent the second emitter 32. Preferably, the classifier 28 is configured to detect visible light in a predetermined spectrum. Preferably, the second emitter 32 is configured to emit light in the same predetermined visible spectrum that the classifier 28 is configured to receive. The classifier 28 may be configured to detect the light in this predetermined visible spectrum that is reflected from the aerosol-generating article 12 and originally submitted by the second emitter 32. The aerosol-generating article 12 comprises a corresponding classification marker 30. Preferably, the classification marker 30 is configured as a visible ink. The classification marker 30 may comprise one or more coloured bands. The coloured bands may be arranged coaxially around the periphery of the aerosol-generating article 12. Due to the authentication marker 26 and the classification marker 30 of the aerosolgenerating article 12 utilizing different technologies (fluorescent ink/phosphorescent ink versus visible ink), the classification marker 30 and the authentication marker 26 may overlie each other.

The classification of the aerosol-generating article 12 is utilized to choose a heating profile for the first heating system component 16 and the second heating system component. In other words, depending upon the classification of the controller 20 when the controller 20 receives the classifier 28 output, the controller 20 chooses a heating profile suitable for the respective type of aerosol-generating article 12 received in the cavity 14. Similar to the memory comprising a lookup table for the authentication of aerosol-generating articles 12, the controller 20 may comprise prestored data including classification data for different types of aerosolgenerating articles 12 and associated different heating profiles.

Different heating profiles may comprise different energy quota between the first heating system component 16 and the second heating system component. In other words, different heating profiles may comprise providing different portions of power to the first heating system component 16 and the second heating system component, respectively.

The different heating profiles may comprise additional or different parameters such as: an amplitude of a current supplied to the heating system components; a frequency and/or duration of current pluses supplied to the heating system components; a time period of power supply; a temperature of the heating system components; a signal powering the heating system components and a maximum number of power pulses to the heating system components.

Particularly preferred, different heating profiles may differ from one another by one or more of: a predetermined maximum number of puffs being permitted before the respective heating profile may be ended, a predetermined maximum duration being permitted before the respective heating profile may be ended, and a predetermined maximum volume of aerosol generated being permitted before the respective heating profile may be ended.

Alternatively, the classification of the aerosol-generating article 12 is utilized to operate a different functionality of the aerosol-generating device 10, preferably to enable or disable an additional functionality of the aerosol-generating device 10. Utilizing the classification to choose a heating profile is, however, the particularly preferred embodiment.

When the aerosol-generating article 12 is inserted into the cavity 14, the authenticator 22 will read the authentication marker 26 of the aerosol-generating article 12 and output this data to the controller 20. The controller 20 then authenticates the aerosol-generating article 12. After that or at the same time, the classifier 28 reads the classification marker 30 and outputs this data to the controller 20. The controller 20 then classifies the type of aerosolgenerating article 12 and chooses an appropriate heating profile. The controller 20 only chooses an appropriate heating profile when the aerosol-generating article 12 has been authenticated. If the aerosol-generating article 12 has been authenticated, the controller 20 controls the supply of power from the first heating system component 16 to the first heating system component 16 and the second heating system component based upon the chosen heating profile, which depends upon the classification of the aerosol-generating article 12.

Figure 2 shows the cavity 14 or at least a portion of the cavity 14 of the aerosolgenerating device 10. More specifically, figure 2 shows the arrangement of the second heating system component 34 in the cavity 14 of the aerosol-generating device 10. The second heating system component 34 preferably is a resistive heater. More preferably, the second heating system component 34 comprises electrically resistive heating tracks arranged on a flexible polyimide substrate layer which is wound around the outer periphery of the cavity 14.

The second heating system component 34 is arranged surrounding the cavity 14. Portions 34.1 , 34.2, 34.3 and 34.4 of the second heating system component 34 are arranged in direct contact with the inner volume of the cavity 14 via the sidewall of the cavity 14. In other words, the portions of the sidewall of the cavity 14 directly contacting the outer periphery of the aerosol-generating article 12, when the aerosol-generating article 12 is received in the cavity 14 of the aerosol-generating device 10, are heated by the second heating system component 34. These portions 34.1 , 34.2, 34.3 and 34.4 are preferably arranged at an inner surface of segments 36. The segments 36 protrude inward so as to directly contact the aerosolgenerating article 12.

Between the segments 36, longitudinal airflow channels 38 are provided. In other words, in the area of the longitudinal airflow channels 38, the sidewall of the cavity 14 is recessed such that a distance is provided between the recessed sidewall of the cavity 14 and the outer periphery of the aerosol-generating article 12, when the aerosol-generating article 12 is received in the cavity 14. During use, ambient air can be drawn from the proximal opening of the cavity 14 in a distal direction through the longitudinal airflow channels 38. Within the longitudinal airflow channel 38, the ambient air may be preheated via the second heating system component 34. When the preheated air reaches the base of the cavity 14, the air makes a U-turn and enters a distal end face of the aerosol-generating article 12. The air is subsequently drawn through the aerosol-generating article 12. In a substrate portion of the aerosol-generating article 12, the heating element in the form of a susceptor strip is arranged to be inductively heated by the alternating magnetic field created by the first heating system component 16, which is provided as an induction coil. The second heating system component 34 in the form of the resistive heater is arranged around the outer periphery of the cavity 14. Further, the first heating system component 16 is depicted in the form of the induction coil arranged surrounding the outer periphery of the cavity 14 and surrounding the second heating system component 34.

Claims

1. An aerosol-generating device configured for use with a plurality of different types of aerosol-generating articles, the aerosol-generating device comprising: a cavity for receiving an aerosol-generating article of the any one of the plurality different types; a first heating system component and a second heating system component; an identification module configured to detect a characteristic of the aerosolgenerating article received in the cavity.

2. The aerosol-generating device according to claim 1 , wherein the first heating system component comprises an induction coil, preferably wherein the induction coil is at least partly wound around the cavity.

3. The aerosol-generating device according to claim 2, wherein the aerosolgenerating device further comprises a power supply and a controller, wherein the controller is configured to control supply of electrical energy from the power supply to the induction coil.

4. The aerosol-generating device according to any of the preceding claims, wherein the second heating system component is configured as a resistive heating system component, preferably wherein the resistive heating system component is at least partly wound around a sidewall of the cavity, more preferably wherein the resistive heating system component is at least partly forming the sidewall of the cavity.

5. The aerosol-generating device according to any of the preceding claims, wherein the first heating system component is configured to heat a heating element to a temperature of between 250°C and 400°C.

6. The aerosol-generating device according to any of the preceding claims, wherein the second heating system component is configured to be heated to a temperature of between 60°C and 220°C.

7. The aerosol-generating device according to any of the preceding claims and claim 3, wherein the controller is configured to control supply of electrical energy from the power supply to the second heating system component, and wherein, with respect to the total electrical energy supplied to the first heating system component and to the second heating system component, one of: at least 10% of the total energy is supplied to the first heating system component, at least 20% of the total energy is supplied to the first heating system component, at least 30% of the total energy is supplied to the first heating system component, at least 40% of the total energy is supplied to the first heating system component, at least 50% of the total energy is supplied to the first heating system component, a maximum of 90% of the total energy is supplied to the first heating system component, a maximum of 80% of the total energy is supplied to the first heating system component, a maximum of 70% of the total energy is supplied to the first heating system component, a maximum of 60% of the total energy is supplied to the first heating system component, a maximum of 50% of the total energy is supplied to the first heating system component, at least 10% of the total energy is supplied to the second heating system component, at least 20% of the total energy is supplied to the second heating system component, at least 30% of the total energy is supplied to the second heating system component, at least 40% of the total energy is supplied to the second heating system component, at least 50% of the total energy is supplied to the second heating system component, a maximum of 90% of the total energy is supplied to the second heating system component, a maximum of 80% of the total energy is supplied to the second heating system component, a maximum of 70% of the total energy is supplied to the second heating system component, a maximum of 60% of the total energy is supplied to the second heating system component, and a maximum of 50% of the total energy is supplied to the second heating system component.

8. The aerosol-generating device according to claim 7, wherein the aerosolgenerating device further comprises a user interface enabling a user to select one or more of: an electrical energy supply to the first heating system component, an electrical energy supply to the second heating system component, a maximum electrical energy supply to the first heating system component, a maximum electrical energy supply to the second heating system component, and an energy distribution between the first heating system component and the second heating system component, preferably wherein the user interface comprises a display.

9. The aerosol-generating device according to any of the preceding claims, wherein the identification module is configured as one or both of an authentication module and a classification module.

10. The aerosol-generating device according to any of the preceding claims, wherein the identification module comprises a first optical emitter and a first optical detector configured to receive electromagnetic radiation from the first optical emitter, preferably wherein the first optical emitter is configured to emit light in the visible spectrum.

11. The aerosol-generating device according to any of the preceding claims, wherein the identification module comprises a second optical emitter and a second optical detector configured to receive electromagnetic radiation from the second optical emitter, preferably wherein the second optical emitter is configured to emit light in the invisible spectrum.

12. The aerosol-generating device according to any of the preceding claims, wherein the identification module is configured to output identification data, wherein the controller is configured to control a function of the aerosol-generating device based on the identification data, preferably wherein controlling the function of the aerosol-generating device comprises selecting a heating profile for one or both of the first heating system component and the second heating system component.

13. An aerosol-generating system comprising the aerosol-generating device of any of the preceding claims and an aerosol-generating article comprising a heating element.

14. The aerosol-generating system according to claim 13, wherein the heating element is one or both of a susceptor and strip-shaped.

15. The aerosol-generating system according to claim 13 or 14, wherein the aerosol-generating article comprises one or both of: a colour marker indicative or one or both of an authentication and a classification of the aerosol-generating article, and an invisible marker indicative or one or both of an authentication and a classification of the aerosol-generating article.