WO2022220440A1 - 레이저 기반의 에어로졸 발생 장치 및 그의 가열 제어 방법 - Google Patents
레이저 기반의 에어로졸 발생 장치 및 그의 가열 제어 방법 Download PDFInfo
- Publication number
- WO2022220440A1 WO2022220440A1 PCT/KR2022/004208 KR2022004208W WO2022220440A1 WO 2022220440 A1 WO2022220440 A1 WO 2022220440A1 KR 2022004208 W KR2022004208 W KR 2022004208W WO 2022220440 A1 WO2022220440 A1 WO 2022220440A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aerosol
- laser
- heating
- generating article
- forming substrate
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 61
- 239000000443 aerosol Substances 0.000 title claims abstract description 57
- 239000000758 substrate Substances 0.000 claims description 90
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000391 smoking effect Effects 0.000 abstract description 15
- 230000005855 radiation Effects 0.000 abstract 3
- 238000004093 laser heating Methods 0.000 description 13
- 238000003763 carbonization Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 7
- 241000208125 Nicotiana Species 0.000 description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
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- 230000000694 effects Effects 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 244000223760 Cinnamomum zeylanicum Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229960002504 capsaicin Drugs 0.000 description 1
- 235000017663 capsaicin Nutrition 0.000 description 1
- 235000017803 cinnamon Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Images
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
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- 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
-
- 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
- A24F40/57—Temperature control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
Definitions
- the present disclosure relates to a laser-based aerosol-generating device and a method for controlling heating thereof. More specifically, it relates to an aerosol-generating device having a precise heating control function while ensuring instantaneous aerosol generation through laser heating, and a heating control method performed in the device.
- a technical problem to be solved through some embodiments of the present disclosure is to provide an aerosol-generating device capable of ensuring immediate aerosol generation and a heating control method performed in the device.
- Another technical problem to be solved through some embodiments of the present disclosure is to provide an aerosol-generating device having a precise heating function and a heating control method performed in the device.
- Another technical problem to be solved through some embodiments of the present disclosure is to provide an aerosol-generating device having an efficient heating control function and a heating control method performed in the device.
- the aerosol-generating device is a laser irradiation unit that generates an aerosol by heating the aerosol-generating article by irradiating a laser and the laser irradiation unit so that the irradiation area of the laser is adjusted It may include a control unit for controlling the.
- the aerosol-generating article may consist of a cylindrical aerosol-forming substrate that is not wrapped by a wrapper.
- the aerosol-generating article may consist of a planar aerosol-forming substrate that is not wrapped by a wrapper.
- the controller may increase the size of the irradiation area of the laser as a specified time elapses.
- the size of the adjusted irradiation area may be 1 mm 2 to 10 mm 2 .
- the laser irradiation unit may include a lens capable of adjusting a focal length, and the controller may adjust the irradiation area of the laser by adjusting the focal length of the lens.
- control unit may control heating of the aerosol-generating article based on a characteristic of the laser reflected from the aerosol-generating article.
- At least one of the aerosol-generating article and the laser irradiator is configured to be movable, and the control unit may control heating of the aerosol-generating article by adjusting the speed of the at least one movement.
- the heating control method of the aerosol-generating device in the heating control method of the aerosol-generating device having a laser irradiation unit, by controlling the laser irradiation unit aerosol-generating article It may include the step of adjusting the area of the laser irradiated to the.
- a computer program is hardware coupled, and is computer readable in order to control the laser irradiation unit to control the area of the laser irradiated to the aerosol-generating article. It may be stored in a recording medium.
- the heating of the aerosol-generating article can be precisely controlled based on the irradiation area of the laser, the reflection characteristics of the laser, and/or the moving speed of the aerosol-generating article (or the laser irradiation unit). have. For example, by adjusting (setting) the irradiation area of the laser to an appropriate size, more precise temperature control can be performed, and the problem of carbonization of the local surface of the aerosol-forming substrate due to laser concentration can also be prevented. Alternatively, by accurately determining whether or not the aerosol-forming substrate is carbonized based on the characteristics of the reflected laser, the problem of re-heating the carbonized portion can also be prevented. In addition, as the heating control is precisely performed, the expression of burnt taste during smoking may be limited, and the user's smoking satisfaction may be improved.
- the aerosol-generating article and/or the laser irradiator may also be configured to move the aerosol-generating article and/or the laser irradiator during heating.
- the entire aerosol-forming substrate can be effectively heated even if a small number of laser irradiation units are provided as the irradiation position of the laser is changed by this movement.
- the laser reflecting unit at an appropriate position or disposing the laser guide unit in a form penetrating the surrounding aerosol, the problem of poor performance of laser heating due to the aerosol around the aerosol-forming substrate can be easily solved.
- FIG. 1 is an exemplary diagram schematically illustrating an aerosol-generating device according to some embodiments of the present disclosure.
- FIGS. 2 and 3 are exemplary views for explaining the shape of an aerosol-generating article according to some embodiments of the present disclosure.
- FIGS. 4 and 5 are exemplary views for explaining a heating method of the aerosol-generating device according to the first embodiment of the present disclosure.
- FIG. 6 is an exemplary view for explaining a heating method of the aerosol-generating device according to the second embodiment of the present disclosure.
- FIG. 7 and 8 are exemplary views for explaining a heating method of an aerosol-generating device according to a third embodiment of the present disclosure.
- FIG. 9 to 11 are exemplary views for explaining a heating method of an aerosol-generating device according to a fourth embodiment of the present disclosure.
- FIG. 12 is an exemplary view for explaining a heating control method of the aerosol-generating device according to the first embodiment of the present disclosure.
- FIG. 13 and 14 are exemplary views for explaining a heating control method of an aerosol-generating device according to a second embodiment of the present disclosure.
- 15 is an exemplary view for explaining a heating control method of an aerosol-generating device according to a third embodiment of the present disclosure.
- aerosol-forming substrate may mean a material capable of forming an aerosol. Aerosols may contain volatile compounds.
- the aerosol-forming substrate may be solid or liquid.
- the solid aerosol-forming substrate may comprise a solid material based on tobacco raw materials such as leaf tobacco, cut filler, reconstituted tobacco, etc.
- the liquid aerosol-forming substrate may contain nicotine, tobacco extract and/or various flavoring agents. liquid compositions based on it.
- the scope of the present disclosure is not limited to the examples listed above.
- the liquid aerosol-forming substrate may include at least one of propylene glycol (PG) and glycerin (GLY), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleic acid. It may further include at least one of one alcohol. As another example, the aerosol-forming substrate may further include at least one of nicotine, moisture, and a flavoring material. As another example, the aerosol-forming substrate may further include various additives such as cinnamon and capsaicin.
- the aerosol-forming substrate may comprise a material in the form of a gel or a solid as well as a highly fluid liquid material. As such, the composition of the aerosol-forming substrate may be variously selected depending on the embodiment, and the composition ratio thereof may also vary depending on the embodiment.
- aerosol-generating device may refer to a device that uses an aerosol-forming substrate to generate an aerosol to generate an inhalable aerosol directly into the user's lungs through the user's mouth.
- aerosol-generating article may mean an article capable of generating an aerosol.
- the aerosol-generating article may comprise an aerosol-forming substrate.
- puff means inhalation of the user, and inhalation may mean a situation in which the user's mouth or nose is drawn into the user's mouth, nasal cavity, or lungs. .
- longitudinal direction may mean a direction corresponding to the longitudinal axis of the aerosol-generating device or aerosol-generating article.
- sheet may mean a thin layer element having a width and length substantially greater than its thickness.
- the term sheet may be used interchangeably with terms such as web and film.
- FIG. 1 is an exemplary diagram schematically illustrating an aerosol-generating device 100 according to some embodiments of the present disclosure.
- the aerosol generating device 100 may include a housing, a mouthpiece unit 110 , a heater unit, a battery 130 , and a control unit 120 .
- the aerosol-generating device 100 includes an input module (e.g. button, touchable display, etc.) for receiving a command from a user, and an output module (e.g. LED, display, vibration module) may be further included.
- an input module e.g. button, touchable display, etc.
- an output module e.g. LED, display, vibration module
- the housing may form the exterior of the aerosol-generating device 100 .
- the housing may be preferably implemented with a material capable of protecting the internal components from external forces.
- the housing may define a space for the aerosol-generating article 150 to be inserted.
- the housing may have a structure in which the aerosol-generating article 150 can be inserted into the heating space 141 therein.
- the housing may have a structure in which one side is opened (e.g. front open) or a part is separated (e.g. upper and lower separated), and the user opens one side or separates a part to heat the aerosol-generating article 150 in a heating space ( 141) can be inserted (mounted).
- the mouthpiece 110 may be located at one end of the aerosol generating device 100 and function as a mouthpiece in contact with the user's mouth. The user may inhale the aerosol by puffing through the mouthpiece unit 110 .
- the mouthpiece unit 110 may be implemented in a form that occupies a portion of the housing, or may be implemented in the form of a separate structure mounted on the aerosol generating device 100 .
- the heater unit may generate an aerosol by heating the aerosol-generating article 150 located in the heating space 141 .
- the operation of the heater unit may be controlled by the controller 120 .
- the heater unit may include one or more laser irradiation units 140 .
- the laser irradiation unit 140 may generate an aerosol immediately without preheating time by irradiating a laser on the surface of the aerosol-generating article 150 .
- the laser irradiation unit 140 is a module that emits (irradiates) laser light, and may be implemented as, for example, a semiconductor type laser diode, but the scope of the present disclosure is not limited thereto.
- the laser light may be, for example, light having an infrared wavelength, but the scope of the present disclosure is not limited thereto.
- the laser irradiation unit 140 may be referred to as a “laser light source 140”.
- the aerosol-generating device 100 may include one laser irradiation unit 140, or three or more lasers. It goes without saying that the irradiation unit 140 may be provided.
- the aerosol-generating article 150 may include a solid aerosol-forming substrate 151 .
- the aerosol-generating article 150 may be comprised of an aerosol-forming substrate 151 and a holder 152 thereof, as shown.
- the scope of the present disclosure is not limited thereto.
- the aerosol-generating article 150 may have a structure in which the surface of the aerosol-forming substrate 151 is exposed to the outside and can be directly heated by a laser.
- the aerosol-generating article 150 may have a structure in which an aerosol-forming substrate 151 not wrapped by a wrapper is mounted to a holder 152 .
- the scope of the present disclosure is not limited thereto.
- the aerosol-generating article 150 may be manufactured in the form of a cartridge. In other words, the aerosol-generating article 150 may be manufactured in a form that is replaced after the aerosol-forming substrate 151 is exhausted.
- the scope of the present disclosure is not limited thereto.
- the shape, thickness, and/or size of the aerosol-forming substrate 151 may be designed and manufactured in various ways. However, it may be preferable that the aerosol-forming substrate 151 be manufactured to have a thin thickness in order to take advantage of the properties of laser light that heats the local surface.
- the aerosol-forming substrate 151 may be manufactured in a cylindrical shape.
- the aerosol-forming substrate 151 in the form of a hollow cylinder may be manufactured by processing an aerosol-forming substrate 153 in a sheet (or flat) form (e.g. tobacco material in a sheet form such as a plate leaf).
- immediate aerosol generation may be ensured by laser heating, and the entire aerosol-forming substrate 151 may be easily heated.
- the entire aerosol-forming substrate 151 may be easily heated by the rotational movement of the aerosol-forming substrate 151 (refer to the description of FIGS. 4 and 5 ).
- the aerosol-forming substrate 151 may be manufactured in a planar shape.
- the aerosol-forming substrate (e.g. 153) in the form of a sheet may be used as it is, or the aerosol-forming substrate (e.g. 153) in the form of a sheet may be laminated in multiple layers to prepare the aerosol-forming substrate 151.
- immediate aerosol generation can be ensured by laser heating, and the entire aerosol-forming substrate 151 can be easily heated.
- the entire aerosol-forming substrate 151 can be easily heated by the linear movement of the aerosol-forming substrate 151 (refer to the description of FIG. 6 ).
- the aerosol-forming substrate 151 may be manufactured in a shape other than that illustrated in FIG. 2 or FIG. 3 .
- the thickness of the processed aerosol-forming substrate 151 or the sheet-form aerosol-forming substrate may be about 5 mm or less, preferably about 3 mm, 2 mm or 1 mm or less. Within this numerical range, the inside of the aerosol-forming substrate 151 may be sufficiently heated by the irradiated laser.
- the size of the aerosol-forming substrate 151 may be appropriately determined in consideration of the size of the heating space 141, the number of times of smoking, and the like.
- the size of the aerosol-forming substrate 151 may be determined based on a target number of cigarettes smoked of the aerosol-generating article 150 .
- the present invention is not limited thereto.
- At least one of the aerosol-generating article 150 and the laser irradiation unit 140 may be configured to move during heating.
- the irradiation position of the laser ie, the position at which the laser is irradiated to the aerosol-forming substrate 151 or the heating point
- the movement may include not only rotational movement and linear movement, but also movement (adjustment) of an angle at a fixed position.
- the movement of the aerosol-generating article 150 and the laser irradiation unit 140 may be implemented in a manual manner or may be implemented in an automatic manner. For example, the movement may be automatically performed under the control of the controller 120 . This embodiment will be described in detail later with reference to FIGS. 4 to 8 .
- the battery 130 may supply power used to operate the aerosol generating device 100 .
- the battery 130 may supply power so that the heater unit (e.g. the laser irradiation unit 140) can heat the aerosol-forming substrate 151 included in the aerosol-generating article 150, and the control unit 120 operates It can supply the power needed to do this.
- the heater unit e.g. the laser irradiation unit 140
- the control unit 120 operates It can supply the power needed to do this.
- the controller 120 may control the overall operation of the aerosol generating device 100 .
- the controller 120 may control the operation of the heater unit (eg, the laser irradiation unit 140 ) and the battery 130 , and may also control the operation of other components included in the aerosol generating device 100 .
- the controller 120 may control the power supplied by the battery 130 and the heating operation of the heater unit (eg, the laser irradiation unit 140 ).
- the controller 120 may control the irradiation intensity, irradiation shape, irradiation area, etc. of the laser irradiation unit 140 , and may control movement of the laser irradiation unit 140 and/or the aerosol-generating article 150 .
- the controller 120 may determine whether the aerosol-generating device 100 is in an operable state by checking the state of each of the components of the aerosol-generating device 100 .
- the controller 120 may control the battery 130 to supply power to the laser irradiator 140 in response to detecting the user's puff. For example, the controller 120 may control to supply power to the laser irradiator 140 only during puff, rather than continuously supplying power to the laser irradiator 140 . In this case, the power consumption of the aerosol-generating device 100 can be greatly reduced and the heating efficiency can be greatly improved.
- the controller 120 may be implemented by at least one processor.
- the processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored.
- the controller 120 may be implemented with other types of hardware.
- control unit 120 An additional control operation of the control unit 120 will be described later with reference to the drawings below with reference to FIG. 12 .
- the aerosol-generating device 100 has been schematically described with reference to FIGS. 1 to 3 .
- the laser heating method and the aerosol-forming substrate 151 having a thin thickness immediate aerosol generation can be ensured.
- an aerosol may be generated immediately without a preheating time. Accordingly, the waiting time for smoking may be minimized, and the user's satisfaction with the aerosol generating device 100 may be improved.
- this embodiment relates to a method of heating an aerosol-generating article 150 based on rotational movement of the laser irradiator 140 and/or the aerosol-generating article 150 .
- the laser irradiation unit 140 irradiates a laser at a fixed position, and the aerosol-generating article 150 moves in an upward direction (e.g. the mouthpiece 110 direction) little by little through rotation.
- the aerosol-generating article 150 may be moved in a downward direction through rotation.
- the aerosol-forming substrate 151 may be heated while the irradiation position of the laser is changed through the rotational movement of the aerosol-generating article 150 .
- the entire aerosol-forming substrate 151 can be easily heated even through a small number of laser irradiation units 140 .
- the aerosol-generating article 150 may further include a rotation guide portion 154 formed in a spiral (or spring form).
- the rotational movement of the aerosol-generating article 150 may be implemented in such a way that the holder 152 is rotated along the rotation guide portion 154 .
- the scope of the present disclosure is not limited thereto.
- the laser irradiation unit 140 may irradiate a laser while rotating around the aerosol-generating article 150 .
- the present embodiment relates to a method of heating an aerosol-generating article 150 based on a linear movement of the laser irradiator 140 or the aerosol-generating article 150 .
- the laser irradiator 140 irradiates a laser at a fixed position, and the aerosol-generating article 150 moves in the longitudinal direction (ie, up and down) or its vertical direction (ie, left and right) direction) can be moved.
- the aerosol-forming substrate 151 may be heated while the irradiation position of the laser is changed (e.g., up, down, left and right) through the linear movement of the aerosol-generating article 150 .
- the entire aerosol-forming substrate 151 can be easily heated even through a small number of laser irradiation units 140 .
- a method for implementing the linear movement of the aerosol-generating article 150 may be varied, and any method may be implemented.
- the laser irradiation unit 140 may irradiate the laser while moving in the longitudinal direction or the vertical direction thereof.
- the aerosol-forming substrate 151 is of a planar shape. However, the following description may be applied without changing the practical technical idea even when the aerosol-forming substrate 151 has a cylindrical or other shape.
- this embodiment relates to a method of heating an aerosol-generating article 150 based on an angular movement (adjustment) of the laser irradiator 140 or the aerosol-generating article 150 .
- the laser irradiation unit 140 may heat the aerosol-forming substrate 151 while changing the irradiation angle at a fixed position.
- the laser irradiation unit 140 may heat the aerosol-forming substrate 151 while changing the vertical angle or the horizontal angle.
- the aerosol-forming substrate 151 may be heated while the irradiation position of the laser is changed (e.g., changed to up, down, left and right) through the angular movement of the laser irradiation unit 141 .
- the entire aerosol-forming substrate 151 can be easily heated even through a small number of laser irradiation units 140 .
- the laser irradiation unit 140 irradiates a laser at a fixed angle, and the vertical angle (tilt) of the aerosol-generating article 150 may be changed.
- FIG. 7 illustrates an example in which one laser irradiator 140 is disposed
- a plurality of laser irradiators 140 may be disposed as described above.
- a first laser irradiation unit for heating one surface of the aerosol-forming substrate 151 and a second laser irradiation unit for heating the other surface may be disposed.
- the present embodiment is based on the angular movement of the laser irradiation units 140-1 and 140-2 and the linear movement (or rotational movement) of the aerosol-generating article 150 an aerosol-generating article 150 . how to heat it.
- FIG. 8 illustrates an example in which a plurality of laser irradiation units 140-1 and 140-2 are disposed, it goes without saying that one laser irradiation unit 140 may be disposed in some cases.
- the first laser irradiation unit 140-1 irradiates the laser while changing the irradiation angle toward one surface of the planar aerosol-forming substrate 151
- the second laser irradiation unit 140 -2) may be irradiated with a laser while changing the irradiation angle toward the other side (e.g. opposite side) of the aerosol-forming substrate 151.
- the aerosol-forming article 150 may perform a linear movement (or rotational movement).
- each laser irradiation unit 140-1, 140-2 heats the aerosol-generating article 150 by changing the vertical angle, and the aerosol-generating article 150 moves in the left-right direction (ie, the vertical direction in the longitudinal direction).
- each laser irradiator 140-1, 140-2 heats the aerosol-generating article 150 while changing the left-right angle, and the aerosol-generating article 150 moves linearly in the vertical direction (ie, the longitudinal direction) (e.g. linear reciprocating motion).
- the entire aerosol-forming substrate 151 can be easily heated through the angular movement of the laser irradiation units 140-1 and 140-2 and the linear movement of the aerosol-generating article 150, and the aerosol-generating article 150 ) can be greatly reduced.
- This embodiment relates to a method for solving the problem that the efficiency of laser heating is lowered as aerosol is generated. For convenience of understanding, the problem will be first described with reference to FIG. 9 .
- an aerosol 155 may be formed around the aerosol-forming substrate 151 .
- the aerosol 155 thus formed may act as a hindrance factor that lowers the efficiency of laser heating.
- absorption and scattering of laser light may occur due to the aerosol 155 positioned on the laser irradiation path, thereby reducing the efficiency of laser heating. That is, there may be a problem in that the energy of the laser light reaching the aerosol-forming substrate 151 is reduced due to the aerosol 155 .
- the heater unit may further include a laser reflection unit 142 as shown in FIG. 10 .
- the laser reflector 142 may be positioned in the lower direction of the aerosol-generating article 150 to reflect the irradiated laser toward the aerosol-generating article 150 positioned in the upper direction.
- the laser and the aerosol 155) can be minimized.
- the problem of lowering the efficiency of laser heating due to the aerosol 155 can be solved.
- the laser guide unit 143 may further include a laser guide unit 143 for guiding the laser irradiated to the heater unit to the aerosol-forming substrate 151 .
- the laser guide unit 143 may be formed in the form of a tube (e.g. waveguide, diffusion tube) and may be disposed in a form that penetrates the aerosol 155 around the aerosol-forming substrate 151 .
- the laser irradiated through the passage inside the laser guide unit 143 can reach the aerosol-forming substrate 151 without energy loss, so the problem of reducing the efficiency of laser heating due to the aerosol 155 can be solved. .
- a heating control method to be described below may be implemented with one or more instructions executed by a computing module (e.g. control unit 120) having a processor.
- a computing module e.g. control unit 120
- the heating control method is performed by the control unit 120 of the aerosol-generating device 100 illustrated in FIG. 1 to continue the description. Accordingly, when description of a subject performing a specific step/action is omitted, it may be understood that the illustrated module 120 is performed.
- this embodiment relates to a method of performing heating control based on the irradiation area (or irradiation shape) of the laser.
- the control unit 120 may control the laser irradiation unit 140 to adjust the irradiation area of the laser, and as the irradiation area is adjusted, heating of the aerosol-generating article 150 may be precisely controlled.
- the heating temperature (or heating intensity) is inevitably changed according to the area of the laser-irradiated regions 144 and 145 .
- the first irradiation area 144 may be heated to a higher temperature than that of the second irradiation area 145 . This is because the laser energy is concentrated as the irradiation area becomes smaller, and the laser energy is dispersed as the irradiation area becomes larger, so that the heating intensity per unit area decreases.
- control unit 120 may perform a precise heating control function for the aerosol-generating article 150 by adjusting the irradiation area (ie, the size of the irradiation area).
- the specific heating control method may vary.
- the controller 120 may increase or decrease the size of the irradiation area based on the heating temperature of the aerosol-generating article 150 .
- the controller 120 may increase the size of the irradiation area in response to determining that the heating temperature of the aerosol-generating article 150 is equal to or greater than a reference value.
- the controller 120 may reduce the size of the irradiation area in response to determining that the heating temperature of the aerosol-generating article 150 is less than the reference value. According to this control, the heating temperature of the aerosol-generating article 150 can be precisely controlled.
- the controller 120 may increase or decrease the size of the irradiation area based on the heating state (e.g. degree of carbonization) of the aerosol-forming substrate 151 .
- the controller 120 may increase the size of the irradiation area in response to the determination that a specific portion of the aerosol-forming substrate 151 is carbonized (heated) above a reference value.
- the controller 120 may reduce the size of the irradiation area in response to the determination that the specific portion of the aerosol-generating article 150 is carbonized (heated) below the reference value. According to this control, the problem of the appearance of burnt taste during smoking can be greatly reduced.
- the controller 120 may increase or decrease the size of the irradiation area based on the elapsed smoking time. Specifically, the control unit 120 heats the aerosol-generating article 150 with a relatively small irradiation area for immediate aerosol generation in the early stage of smoking, and irradiation of a relatively large size to prevent carbonization from the middle of smoking. The area may heat the aerosol-generating article 150 . That is, the controller 120 may increase the size of the laser irradiation area as the specified time elapses. Optionally, in order to improve the taste after smoking, the control unit 120 may heat the aerosol-generating article 150 with a relatively small irradiation area again during the latter half of smoking.
- the size of the adjusted (increased) laser irradiation area is about 0.5mm 2 to 20mm 2 , 1mm 2 to 10mm 2 , 1mm 2 to 8mm 2 , 1mm 2 to 6mm 2 , 2mm 2 to 6mm 2 or about It may be 2mm 2 to 4mm 2 .
- the aerosol-forming substrate 151 may be appropriately heated.
- the size of the irradiation area is too small (eg 0.5 mm 2 or less)
- the laser energy is too concentrated, and the local surface of the aerosol-forming substrate 151 may be carbonized.
- the size of the irradiation area is too large (eg, 10 mm 2 or more)
- the laser energy is excessively dispersed, so that the aerosol-forming substrate 151 may hardly be heated.
- a specific method of controlling the irradiation area of the laser may also be various.
- the irradiation area of the laser may be adjusted by adjusting the focal length. This is because when the focal length is changed when the distance between the laser irradiation unit 140 and the aerosol-generating article 150 is constant, the area to which the laser is irradiated is changed.
- the controller 120 may adjust the irradiation area of the laser by adjusting the focal length of the lens.
- the scope of the present disclosure is not limited thereto.
- a plurality of lenses having different characteristics may be provided, and the irradiation area may be adjusted by changing (exchanging) the lens of the laser irradiation unit 140 to another lens.
- the irradiation area may be adjusted by adjusting the irradiation distance from the laser irradiation unit 140 to the aerosol-generating article 150 .
- the controller 120 may adjust the irradiation distance by moving at least one of the laser irradiation unit 140 and/or the aerosol-generating article 150 .
- FIGS. 13 and 14 a heating control method of an aerosol generating device according to a second embodiment of the present disclosure will be described with reference to FIGS. 13 and 14 .
- FIG. 13 is an exemplary flowchart schematically illustrating a heating control method of an aerosol-generating device according to some embodiments of the present disclosure.
- FIG. 13 schematically illustrates a method of controlling heating for an aerosol-generating article 150 based on the reflective properties of a laser.
- the heating control method according to the present embodiment may be started in step S10 of starting laser heating.
- the controller 120 may control power to be supplied to the laser irradiator 140 , and as the power is supplied, the laser irradiator 140 may irradiate a laser toward the aerosol-generating article 150 .
- a characteristic of the laser reflected from the aerosol-generating article 150 may be measured (analyzed).
- the controller 120 may detect laser light reflected from the aerosol-generating article 150 using a light receiving element (eg, a photodiode), and measure (analyze) characteristics of the detected laser light.
- the characteristics of the laser light may include, for example, an amount, a wavelength, a frequency, an energy level, and the like, but is not limited thereto.
- the heating state of the laser-irradiated region may be determined based on the measurement result.
- the controller 120 may determine the degree of carbonization, temperature, etc. of the irradiation area based on the characteristics of the reflected laser.
- the controller 120 may determine the degree of carbonization of the irradiation area based on the amount of the reflected laser. In order to provide more convenience of understanding, it will be described in more detail with reference to FIG. 14 .
- FIG. 14 illustrates an example in which the second irradiation area 147 of the aerosol-forming substrate 151 is more carbonized than the first irradiation area 146 .
- a conventional aerosol-forming substrate 151 changes color as it is carbonized (e.g. color changes from brown->black->grey).
- the degree of carbonization of the corresponding regions 146 and 147 may be determined based on the characteristics of the reflected lasers 148 and 149 . For example, when the color of the second irradiation area 147 is changed from brown to black due to carbonization, the amount of the reflected laser 149 is reduced because the second irradiation area 147 absorbs more laser light. . Accordingly, the controller 120 may determine the degree of carbonization of the second irradiation area 147 based on the amount of the reflected laser 149 .
- heating control may be performed based on the determination result.
- the specific heating control method may vary.
- the irradiation position of the laser may be controlled based on the determination result. For example, when it is determined that the current irradiation area of the aerosol-forming substrate 151 is carbonized more than the reference value, the controller 120 may change the current irradiation area to another place (e.g. change to a non-carbonized place). For example, the control unit 120 may change the current irradiation area by moving the laser irradiation unit 140 and/or the aerosol-generating article 150 .
- the controller 120 may irradiate a laser to one or more candidate areas, determine the degree of carbonization of each candidate area based on the reflected laser, and change the current irradiation area to a candidate area having a degree of carbonization equal to or less than a reference value. Alternatively, the controller 120 may change the current irradiation area to a random point. Alternatively, if each region of the aerosol-forming substrate 151 is sequentially heated, the controller 120 may change the current irradiation region to the next region.
- the irradiation area of the laser may be adjusted based on the determination result.
- the irradiation intensity of the laser may be controlled based on the determination result. For example, when it is determined that the current irradiation area of the aerosol-forming substrate 151 is carbonized by more than a reference value, the controller 120 may reduce the irradiation intensity of the laser. In the opposite case, the controller 120 may increase the irradiation intensity of the laser.
- the moving speed of the laser irradiation unit 140 and/or the aerosol-generating article 150 may be controlled based on the determination result. For example, when it is determined that the current irradiation area of the aerosol-forming substrate 151 is carbonized more than the reference value, the control unit 120 may increase the moving speed of the laser irradiation unit 140 and/or the aerosol-generating article 150 . . In the opposite case, the controller 120 may decrease the moving speed.
- the thickness of the arrow means the size of the moving speeds V1 and V2.
- the present embodiment relates to a method of performing heating control based on the moving speed of the aerosol-generating article 150 and/or the laser irradiation unit 140 .
- the controller 120 controls the moving speed (e.g. V1, V2) of the aerosol-generating article 150 to control the amount of laser energy per unit area irradiated to the aerosol-generating article 150 (ie, per unit area).
- the irradiation time of the laser or the heating intensity per unit area) can be adjusted, and accordingly, the heating of the aerosol-generating article 150 can be precisely controlled.
- the irradiation areas 156 and 157 according to the moving speed (e.g. V1, V2) of the aerosol-generating article 150
- the heating intensity (or heating temperature) of the aerosol-generating article 150 is moving at a relatively slow speed V1
- the irradiation area 156 may be heated to a relatively high intensity because the exposure time to the laser is long.
- the irradiation area 157 may be heated at a relatively low intensity because the exposure time to the laser is short.
- the controller 120 may precisely control the heating of the aerosol-generating article 150 by adjusting the moving speed of the laser irradiation unit 140 and/or the aerosol-generating article 150 .
- the control unit 120 may precisely control the heating intensity (degree) of the aerosol-generating article 150 by increasing or decreasing the moving speed of the laser irradiation unit 140 and/or the aerosol-generating article 150 (e.g. the movement speed). Increases the heating intensity by decreasing it, decreases the heating intensity by increasing the movement speed).
- the computer-readable recording medium may be, for example, a removable recording medium (CD, DVD, Blu-ray disk, USB storage device, removable hard disk) or a fixed recording medium (ROM, RAM, computer-equipped hard disk).
- the computer program recorded in the computer-readable recording medium may be transmitted to another computing device through a network such as the Internet and installed in the other computing device, thereby being used in the other computing device.
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- Electromagnetism (AREA)
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- Optics & Photonics (AREA)
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- Laser Beam Processing (AREA)
Abstract
Description
Claims (11)
- 레이저를 조사하여 에어로졸 발생 물품을 가열함으로써 에어로졸을 발생시키는 레이저 조사부; 및상기 레이저의 조사 면적이 조절되도록 상기 레이저 조사부를 제어하는 제어부를 포함하는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 에어로졸 발생 물품은 래퍼(wrapper)에 의해 감싸지지 않은 원통형의 에어로졸 형성 기재로 이루어지는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 에어로졸 발생 물품은 래퍼(wrapper)에 의해 감싸지지 않은 평면형의 에어로졸 형성 기재로 이루어지는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 제어부는 지정된 시점이 경과함에 따라 상기 레이저의 조사 면적의 크기를 증가시키는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 조절된 조사 면적의 크기는 1mm2 내지 10mm2인, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 레이저 조사부는 초점 거리 조절이 가능한 렌즈를 포함하고,상기 제어부는 상기 렌즈의 초점 거리를 조절함으로써 상기 레이저의 조사 면적을 조절하는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 제어부는 상기 레이저 조사부로부터 상기 에어로졸 발생 물품까지의 조사 거리를 조절함으로써 상기 레이저의 조사 면적을 조절하는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 제어부는 상기 에어로졸 발생 물품으로부터 반사되는 레이저의 특성에 기초하여 상기 에어로졸 발생 물품에 대한 가열을 제어하는, 에어로졸 발생 장치.
- 제8 항에 있어서,상기 제어부는 상기 반사되는 레이저의 양에 기초하여 상기 에어로졸 발생 물품의 레이저 조사 영역의 가열 상태를 판단하고, 상기 판단 결과에 기초하여 상기 에어로졸 발생 물품에 대한 가열을 제어하는, 에어로졸 발생 장치.
- 제9 항에 있어서,상기 제어부는 상기 판단 결과에 기초하여 상기 에어로졸 발생 물품의 레이저 조사 영역이 변경되도록 제어하는, 에어로졸 발생 장치.
- 제1 항에 있어서,상기 에어로졸 발생 물품 및 상기 레이저 조사부 중 적어도 하나는 이동 가능하도록 구성되고,상기 제어부는 상기 적어도 하나의 이동 속도를 조절함으로써 상기 에어로졸 발생 물품에 대한 가열을 제어하는, 에어로졸 발생 장치.
Priority Applications (4)
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EP22788296.6A EP4226786A4 (en) | 2021-04-16 | 2022-03-25 | LASER AEROSOL GENERATION DEVICE AND ASSOCIATED HEATING CONTROL METHOD |
CN202280007171.XA CN116456847A (zh) | 2021-04-16 | 2022-03-25 | 基于激光的气溶胶生成装置及其加热控制方法 |
US18/036,440 US20230413904A1 (en) | 2021-04-16 | 2022-03-25 | Laser-based aerosol generation device and heating control method thereof |
JP2023519811A JP7571936B2 (ja) | 2021-04-16 | 2022-03-25 | レーザー基盤のエアロゾル発生装置およびその加熱制御方法 |
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KR1020210049704A KR102533113B1 (ko) | 2021-04-16 | 2021-04-16 | 레이저 기반의 에어로졸 발생 장치 및 그의 가열 제어 방법 |
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EP (1) | EP4226786A4 (ko) |
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WO2024131119A1 (zh) * | 2022-12-19 | 2024-06-27 | 思摩尔国际控股有限公司 | 气溶胶生成装置 |
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US20230413904A1 (en) | 2023-12-28 |
EP4226786A4 (en) | 2023-12-13 |
KR102533113B1 (ko) | 2023-05-15 |
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