WO2022002938A1 - Dispositif de génération d'aérosol comprenant des capteurs de température et procédé de surveillance associé - Google Patents

Dispositif de génération d'aérosol comprenant des capteurs de température et procédé de surveillance associé Download PDF

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Publication number
WO2022002938A1
WO2022002938A1 PCT/EP2021/067852 EP2021067852W WO2022002938A1 WO 2022002938 A1 WO2022002938 A1 WO 2022002938A1 EP 2021067852 W EP2021067852 W EP 2021067852W WO 2022002938 A1 WO2022002938 A1 WO 2022002938A1
Authority
WO
WIPO (PCT)
Prior art keywords
generation device
aerosol generation
temperature
monitoring module
housing
Prior art date
Application number
PCT/EP2021/067852
Other languages
English (en)
Inventor
Kyle ADAIR
Olayiwola Olamiposi POPOOLA
Peter LOVEDAY
Original Assignee
Jt International S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jt International S.A. filed Critical Jt International S.A.
Publication of WO2022002938A1 publication Critical patent/WO2022002938A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • Aerosol generation device comprising temperature sensors and associated monitoring method
  • the present invention concerns an aerosol generation device comprising temperature sensors.
  • the present invention concerns also a monitoring method associated to such a device.
  • aerosol generation devices comprise a storage portion for storing an aerosol forming precursor, which can comprise for example a liquid or a solid.
  • a heating system is formed of one or more electrically activated resistive heating elements arranged to heat said precursor to generate the aerosol.
  • the aerosol is released into a flow path extending between an inlet and outlet of the device.
  • the outlet may be arranged as a mouthpiece, through which a user inhales for delivery of the aerosol.
  • the precursor is stored in a removable cartridge.
  • the cartridge can be easily removed and replaced.
  • a screw- threaded connection can for example be used.
  • the heating system is powered by a battery presenting generally a rechargeable battery, as for example a lithium-ion battery.
  • the power from the battery is usually controlled by a microcontroller basing for example on heating system characteristics like for example the resistance of the heating coil.
  • the microcontroller is able to detect when one or several components of the device are damaged. For example, damage can occur in the heating system or in the battery so as the device becomes inoperable or even dangerous for the user. In this case, if possible, the microcontroller may alarm the user and for example, deactivate the operation of the device. Therefore, the methods known in the art propose to alarm the user when the damage has already occurred and are not able to prevent it. Thus, in this case, it is often too late to remedy it without for example replacement of at least some components of the device or even the whole device.
  • One of the aims of the invention is to prevent damage of one or several components of an aerosol generation device so as the user, the technical support or the device itself could fix fault conditions causing this damage.
  • the invention relates to an aerosol generation device, comprising a housing comprising:
  • a heating system configured to generate aerosol from a precursor
  • control module connecting electrically the heating system to the power block and configured to control the operation of the heating system
  • each operation temperature sensor being arranged in an internal area of the housing and configured to generate temperature measurements relative to the temperature in this area;
  • a monitoring module configured to perform an analysis of the temperature measurements generated by each operation temperature sensor and basing on this analysis, detect an operation fault of the aerosol generation device.
  • the monitoring module is further configured to generate a warning signal in case of detection of at least one operation fault. .
  • the monitoring module is further configured to transmit the warning signal to a user. Thanks to these features, the user can be alarmed and perform necessary steps to fix the operation fault.
  • the monitoring module is further configured to transmit the warning signal to the control module.
  • control module is further configured to deactivate the operation of the device or to control it according to a degraded operation mode, upon receiving the warning signal.
  • control module can reduce performance to maintain the device service, deactivate it or perform the necessary steps to fix the fault.
  • the analysis performed by the monitoring module comprises comparing at least some temperature measurements with predetermined profiles and/or at least some temperature measurements between them. .
  • the analysis performed by the monitoring module comprises comparing at least some temperature measurements issued from one or several operation temperature sensors over time, with predetermined profiles.
  • At least one predetermined profile presents an expected temperature behavior of the device during a predetermined operating cycle.
  • the monitoring module can detect efficiently at least one operation fault.
  • control module and the monitoring module are integrated into a same electronic component.
  • each operation temperature sensor is associated to an internal area of the housing different from an area defined by the heating system. According to some embodiments, the operation temperature sensors are arranged in different internal areas of the housing.
  • the analysis performed by the monitoring module comprises comparing at least some temperature measurements generated by different operation temperature sensors.
  • each operation temperature sensor is integrated into a component of the aerosol generation device chosen in the group consisting of:
  • controller integrating the control module.
  • a temperature senor can be combined with an existing component of the aerosol generation device.
  • the invention also relates to a monitoring method of an aerosol generation device comprising a housing, the method comprising the following steps:
  • each operation temperature sensor being arranged in an internal area of the housing
  • FIG. 1 is a schematic diagram showing an embodiment of an aerosol generation device according to the invention.
  • FIG. 2 is a flowchart of a monitoring method according to the invention, the monitoring method being performed by the aerosol generation device of Figure 1 .
  • the term “aerosol generation device” or “device” may include a vaping device to deliver an aerosol to a user, including an aerosol for vaping, by means of aerosol generating unit (e.g. an aerosol generating element which generates vapor which condenses into an aerosol before delivery to an outlet of the device at, for example, a mouthpiece, for inhalation by a user).
  • the device may be portable. “Portable” may refer to the device being for use when held by a user.
  • the device may be adapted to generate a variable amount of aerosol, e.g. by activating a heater system for a variable amount of time (as opposed to a metered dose of aerosol), which can be controlled by a trigger.
  • the trigger may be user activated, such as a vaping button and/or inhalation sensor.
  • the inhalation sensor may be sensitive to the strength of inhalation as well as the duration of inhalation to enable a variable amount of vapor to be provided (so as to mimic the effect of smoking a conventional combustible smoking article such as a cigarette, cigar or pipe, etc.).
  • the device may include a temperature regulation control to drive the temperature of the heater and/or the heated aerosol generating substance (aerosol pre-cursor) to a specified target temperature and thereafter to maintain the temperature at the target temperature that enables efficient generation of aerosol.
  • aerosol may include a suspension of precursor as one or more of: solid particles; liquid droplets; gas. Said suspension may be in a gas including air. Aerosol herein may generally refer to/include a vapor. Aerosol may include one or more components of the precursor.
  • the term “aerosol-forming precursor” or “precursor” or “aerosolforming substance” or “substance” may refer to one or more of a: liquid; solid; gel; mousse; foam or other substances.
  • the precursor may be processable by the heating system of the device to form an aerosol as defined herein.
  • the precursor may comprise one or more of: nicotine; caffeine or other active components.
  • the active component may be carried with a carrier, which may be a liquid.
  • the carrier may include propylene glycol or glycerine.
  • a flavoring may also be present. The flavoring may include Ethylvanillin (vanilla), menthol, Isoamyl acetate (banana oil) or similar.
  • a solid aerosol forming substance may be in the form of a rod, which contains processed tobacco material, a crimped sheet or oriented strips of reconstituted tobacco (RTB).
  • an aerosol generation device 10 comprises a housing 11 extending between a hold end 12 and a mouthpiece end 14.
  • the housing 11 delimits an interior part of the aerosol generation device 10 comprising a power block 22 designed to power the device 10, a heating system 24 powered by the power block 22, a payload compartment 26 in contact with the heating system 24 and a controller 28 controlling the operation of the device.
  • the housing 11 of the aerosol generation device 10 may further comprise other internal components performing different functionalities of the device 10 known per se.
  • the housing 11 of the aerosol generation device 10 further comprises a pressure sensor 32 and at least one inertial sensor 34.
  • Figure 1 presents only a schematic diagram of different components of the aerosol generation device 10 and does not necessarily show the real physical arrangement and dimensions of these components. Particularly, such an arrangement can be chosen according to the design of the aerosol generation device 10 and technical features of its components.
  • the pressure sensor 32 is arranged adjacent to the payload compartment 26
  • the controller 28 and the inertial sensor 34 are arranged adjacent to the hold end 12
  • the power block 22 is arranged between the pressure sensor 32 and the controller 28.
  • the power block 22 may be adjacent to the hold end 12 and the controller 28 and the sensors 32, 34 may be arranged between the power block 22 and the payload compartment 26.
  • the power block 22 comprises a battery 36 and a battery charger 38.
  • the battery 36 is for example a known battery designed to be charged using the power supply furnished by an external source and to provide a direct current of a predetermined voltage.
  • the battery charger 38 is able to connect the battery to the external source and comprises for this purpose a power connector (like for example a mini-USB connector) or wireless charging connector.
  • the battery charger 38 is also able to control the power delivered from the external source to the battery according for example a predetermined charging profile.
  • a charging profile can for example define a charging voltage of the battery depending on its level of charge.
  • the payload compartment 26 is designed to store the precursor used to generate aerosol. Particularly, based on the nature of the precursor, the payload compartment 26 can be designed to store the precursor in a liquid and/or solid form.
  • the payload compartment 26 can be fixed in respect with the housing 11 of the aerosol generation device 10 or removable from it. In the first case, the payload compartment 26 can be refilled with the precursor. In the second case, the payload compartment 26 can present a replaceable cartridge (e.g., a pod or capsule containing e-liquid) or consumable (e.g., a tobacco rod) that can be removed and replaced by another one when the precursor is no longer available. In some embodiments, the replaceable cartridge can be also refilled with the precursor.
  • a replaceable cartridge e.g., a pod or capsule containing e-liquid
  • consumable e.g., a tobacco rod
  • the pressure sensor 32 is able to detect a user’s blow or inhalation exerted in relation with the mouthpiece end 14. Upon detecting such a blow or inhalation, the pressure sensor 32 is able to transmit to the controller 28 a pressure signal.
  • the inertial sensor 34 presents for example an accelerometer able to detect an acceleration of the device according to at least one axis. As the pressure sensor 32, upon detecting such an acceleration, the inertial sensor 34 is able to transmit to the controller 28 an acceleration signal.
  • the controller 28 is formed for example by a microcontroller and comprises a control module 40 able to control the operation of the aerosol generation device 10.
  • the control module 40 is able to control the operation of the heating system 24 by controlling the powering of this system 24 by the power block 22 and eventually, of at least some other components of the housing 11 providing additional functionalities of the device.
  • the control module 40 is able to activate the operation of the heating system 24 upon receiving the pressure signal from the pressure sensor 32 or deactivate or adjust the operation of the heating system 24 upon receiving the acceleration signal from the inertial sensor 34.
  • control module 40 is able to control the operation of the device according to at least a normal operation mode and a degraded operation mode.
  • the normal operation mode all of the functionalities of the device 10 can be provided to the user.
  • the degraded operation mode at least some functionalities of the device can be deactivated or reduced.
  • the control module 40 can reduce the highest temperature that can be provided by the heating system 24 to heat the precursor.
  • the heating system 24 comprises a heater in contact with the payload compartment 26 or integrated partially into this compartment 26. Powered by the power block 22 and controlled by the control module 40, the heater is able to heat the precursor comprised in the payload compartment 26 to generate aerosol. In some embodiments, the heater operation may be controlled by the control module 40 according to its temperature. In this case, the heater temperature can be determined by the control module 40 using resistance measurements of the heater or temperature measurements acquired by a heating temperature sensor arranged in the heating system 24.
  • the housing 11 of the aerosol generation device 10 further comprises at least two operation temperature sensors 42 arranged in different internal areas of the housing 11 and able to provide temperature measurements of the corresponding internal areas, and a monitoring module 44 connected to the these operation temperature sensors 42 and able to analyze the temperature measurements provided by these sensors 42.
  • the operation temperature sensors 42 are distributed homogeneously inside the housing 11 between the components of the housing 11 cited above. According to some other embodiments, at least some operation temperature sensors 42 are associated with at least some particular internal components of the housing 11. In the example of Figure 1 , four operation temperature sensors 42 are arranged in different internal areas of the housing 11. According to this example, one temperature sensor 42 is associated with the power block 22 and notably with the battery charger 38, one temperature sensor 42 is associated with the controller 28, one temperature sensor 42 is associated with the pressure sensor 32 and one temperature sensor 42 is associated with the inertial sensor 34.
  • one temperature sensor 42 may be integrated into the power block 22 and notably into the battery charger 38, one temperature sensor 42 may be integrated into the controller 28, one temperature sensor 42 may be integrated into the pressure sensor 32 and one temperature sensor 42 may be integrated into the inertial sensor 34.
  • a temperature sensor can also be arranged in the heating system 24 and be used as an operation temperature sensor and a heating temperature sensor. In other words, in this case, this temperature sensor can provide temperature measurements to the control module 40 to control the operation of the heater and to the monitoring module 44 to perform an analysis of these measurements as explained below.
  • the monitoring module 44 is configured to perform an analysis of the temperature measurements generated by each operation temperature sensor 42 and basing on this analysis, detect an operation fault of the aerosol generation device 10.
  • the analysis performed by the monitoring module 44 comprises comparing at least some temperature measurements with predetermined profiles and/or at least some temperature measurements between them.
  • the predetermined profiles may comprise for example predetermined thresholds.
  • each profile can comprise an upper threshold and/or a lower threshold.
  • the analysis performed by the monitoring module 44 can comprise comparing the temperature measurements with the corresponding thresholds.
  • An operation fault can be detected when one or several temperature measurements are outside of one or several intervals defined by these thresholds.
  • a battery charger fault can be detected if the temperature measurement issued from the corresponding sensor are above an upper threshold defined by the corresponding profile.
  • an impending fault can be detected if a certain temperature does not reach above a certain level which is defined by a lower threshold in the corresponding profile.
  • the monitoring module 44 is able to determine average temperature measurements from the same operational temperature sensor 42 and/or correlations between the temperature measurements issued from different operational temperature sensors 42. In some embodiments, the monitoring module 44 is able to analyze temperature measurements issued from a sensor over time. For example, the monitoring module 44 can analyze over time temperature measurements issued from the temperature sensor associated to the heating system 24. Indeed, the heater should heat up to certain temperature in a specific time span. During the heating cycle, the associated temperature sensor needs to meet certain thresholds at certain points in time. This heater behavior during the heating cycle can form the corresponding profile to detect a heater fault. For example, if the heater does not heat up quick enough, a fault can be detected by the monitoring module 44.
  • the device 10 operates according to an expected temperature behavior over time during a particular operating cycle. This behavior forms a predetermined profile used by the monitoring module 44 to detect an operation fault. For example, after switching off the heater, it is expected a certain cool down pattern of all the temperature sensors in the device 10. If the measurements do not match up to the expectations, the monitoring module 44 may detect a fault. For example, if the heater is switched off, but the temperature of the battery is not dropping off as quick as expected, this might indicate a problem with the battery 36.
  • the monitoring module 44 is also able to determine the temperature at each internal point of the housing 11 by interpolation/extrapolation of the available temperature measurements.
  • the monitoring module 44 When at least one operation fault is detected, the monitoring module 44 is able to generate a warning signal and transmit this warning signal to the user via for example a display or an LED indicator, and/or to the control module 40.
  • the warning signal can for example comprise a simple indication that an operation fault has occurred or more detailed information about this fault (the area of fault, temperature value, etc.). This detailed information can for example be stored in a memory of the control module 40.
  • the control module 40 Upon receiving the warning signal, the control module 40 is able for example to deactivate the operation of the device 10 or to control it according to a degraded operation mode.
  • the control module 40 upon receiving the warning signal, the control module 40 is able to fix the operation fault for example by adjusting the operation of at least some components of the device 10.
  • the monitoring module 44 presents an independent electronic component (for example a microcontroller) connected to the microcontroller 28. In the embodiment of Figure 1 , the monitoring module 44 is integrated into the controller 28 together with the control module 40.
  • a monitoring method 100 performed by the aerosol generation device 10 will now be explained in reference to Figure 2 presenting a flowchart of its steps.
  • the aerosol generation device 10 is controlled by the control module 40 according to the normal operation mode.
  • step 110 of the method performed while normal operation of the device 10 the operation temperature sensors 42 generate temperature measurements relative to the corresponding internal areas of the housing 11 . These temperature measurements are then transmitted to the monitoring module 44.
  • the monitoring module 44 performs an analysis of the temperature measurements. Particularly, as explained above, this analysis can comprise comparing the temperature measurements with predetermined profiles and/or between them.
  • the monitoring module 44 detects an operation fault if basing on the previous analysis, at least some temperature measurement do not match the corresponding predetermined profiles. In this case, the monitoring module 44 generates a warning signal and transmits this warning signal to the user and/or the control module 40.
  • the control module 40 may thus activate the degraded operation mode or deactivate the operation of the device 10 or fix the detected operation fault by adjusting the operation of the device 10.

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Abstract

Ce dispositif de génération d'aérosol (10) comprend un boîtier (11) comprenant : - un bloc d'alimentation (22) ; - un système de chauffage (24) conçu pour générer un aérosol à partir d'un précurseur ; - un module de commande (40) connectant électriquement le système de chauffage (24) au bloc d'alimentation (22) et étant conçu pour commander le fonctionnement du système de chauffage (24) ; - au moins deux capteurs de température de fonctionnement (42), chaque capteur de température de fonctionnement (42) étant disposé dans une zone interne du boîtier (11) et étant conçu pour générer des mesures de température par rapport à la température dans cette zone ; - un module de surveillance (44) conçu pour effectuer une analyse des mesures de température générées par chaque capteur de température de fonctionnement (42) et, sur la base de cette analyse, détecter un défaut de fonctionnement du dispositif de génération d'aérosol (10).
PCT/EP2021/067852 2020-06-30 2021-06-29 Dispositif de génération d'aérosol comprenant des capteurs de température et procédé de surveillance associé WO2022002938A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20183183 2020-06-30
EP20183183.1 2020-06-30

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WO2022002938A1 true WO2022002938A1 (fr) 2022-01-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023219419A1 (fr) * 2022-05-11 2023-11-16 Kt&G Corporation Dispositif de génération d'aérosol
WO2024189562A1 (fr) * 2023-03-14 2024-09-19 Rai Strategic Holdings, Inc. Dispositif de fourniture d'aérosol avec un capteur qui indique l'utilisation du dispositif de fourniture d'aérosol, et qui comprend un capteur de température sur puce
WO2024189561A1 (fr) * 2023-03-14 2024-09-19 Rai Strategic Holdings, Inc. Surveillance à multiples températures pour un système de fourniture d'aérosol

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Publication number Priority date Publication date Assignee Title
WO2018001746A1 (fr) * 2016-06-29 2018-01-04 Philip Morris Products S.A. Dispositif générateur d'aérosol alimenté par batterie comprenant un préchauffage de batterie dépendant de la température
CN107713016A (zh) * 2017-10-10 2018-02-23 常州市派腾电子技术服务有限公司 气流加热装置、加热控制方法及电子烟
EP3632240A1 (fr) * 2017-05-26 2020-04-08 KT&G Corporation Dispositif de génération d'aérosol ayant une fonction de détection d'insertion de cigarette et procédé
US20200120988A1 (en) * 2017-06-26 2020-04-23 Changzhou Patent Electronic Technology Co., LTD Electronic cigarette and method for pre-heating electronic cigarette
US20200187560A1 (en) * 2017-12-02 2020-06-18 Michael Trzecieski Vaporizer device and system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018001746A1 (fr) * 2016-06-29 2018-01-04 Philip Morris Products S.A. Dispositif générateur d'aérosol alimenté par batterie comprenant un préchauffage de batterie dépendant de la température
EP3632240A1 (fr) * 2017-05-26 2020-04-08 KT&G Corporation Dispositif de génération d'aérosol ayant une fonction de détection d'insertion de cigarette et procédé
US20200120988A1 (en) * 2017-06-26 2020-04-23 Changzhou Patent Electronic Technology Co., LTD Electronic cigarette and method for pre-heating electronic cigarette
CN107713016A (zh) * 2017-10-10 2018-02-23 常州市派腾电子技术服务有限公司 气流加热装置、加热控制方法及电子烟
US20200187560A1 (en) * 2017-12-02 2020-06-18 Michael Trzecieski Vaporizer device and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023219419A1 (fr) * 2022-05-11 2023-11-16 Kt&G Corporation Dispositif de génération d'aérosol
WO2024189562A1 (fr) * 2023-03-14 2024-09-19 Rai Strategic Holdings, Inc. Dispositif de fourniture d'aérosol avec un capteur qui indique l'utilisation du dispositif de fourniture d'aérosol, et qui comprend un capteur de température sur puce
WO2024189561A1 (fr) * 2023-03-14 2024-09-19 Rai Strategic Holdings, Inc. Surveillance à multiples températures pour un système de fourniture d'aérosol

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