EP4233598A1 - Aerosol forming method and electronic device for performing method - Google Patents
Aerosol forming method and electronic device for performing method Download PDFInfo
- Publication number
- EP4233598A1 EP4233598A1 EP22893961.7A EP22893961A EP4233598A1 EP 4233598 A1 EP4233598 A1 EP 4233598A1 EP 22893961 A EP22893961 A EP 22893961A EP 4233598 A1 EP4233598 A1 EP 4233598A1
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- EP
- European Patent Office
- Prior art keywords
- current
- aerosol generating
- generating substrate
- electronic device
- temperature
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 239000000443 aerosol Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims description 20
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 230000000391 smoking effect Effects 0.000 claims description 35
- 238000012544 monitoring process Methods 0.000 claims description 20
- 230000007423 decrease Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 description 16
- 238000004891 communication Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- 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
- A24F40/40—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
- 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
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
-
- 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
- the following embodiments relate to a technology of generating an aerosol, and particularly, to a technology for generating heat based on a current.
- An embodiment may provide a method of generating an aerosol that may be performed by an electronic device.
- An embodiment may provide an electronic device that may generate an aerosol.
- an electronic device may include a controller configured to control an operation of the electronic device, a heater configured to heat an aerosol generating substrate inserted into the electronic device using a supplied current, and a sensing unit configured to measure a temperature of a space in which the aerosol generating substrate is located, wherein the controller may be configured to control the current supplied to the heater based on an initial current profile, and the controller may be configured to adjust the initial current profile based on a temperature change of the space caused by insertion of a new aerosol generating substrate.
- Adjustment of the current profile may be performed when the new aerosol generating substrate is inserted following completion of smoking of a first aerosol generating substrate.
- the controller may be configured to monitor a temperature change of the space using the sensing unit for a preset period of time when the smoking of the first aerosol generating substrate is completed.
- the controller may be configured to calculate a current compensation value based on the temperature change when smoking of the new aerosol generating substrate is initiated, generate a compensation current profile by adjusting the initial current profile based on the current compensation value, and supply a current to the heater based on the compensation current profile.
- the current compensation value may include a target time calculated for a target current value.
- the controller may be configured to generate the compensation current profile such that a time of outputting the target current value in the initial current profile decreases by the target time.
- a method of controlling an electronic device may include, after smoking of a first aerosol generating substrate inserted into the electronic device is completed, monitoring a temperature of a space in which the first aerosol generating substrate is located, when heating of a new second aerosol generating substrate inserted into the space is initiated, calculating a current compensation value based on a temperature change of the space, generating a compensation current profile by adjusting an initial current profile based on the current compensation value, and controlling a current supplied to a heater based on the compensation current profile.
- the monitoring of the temperature of the space may include determining whether the first aerosol generating substrate is removed based on the monitoring.
- the monitoring of the temperature of the space may include determining a first point in time at which the second aerosol generating substrate is inserted based on the monitoring.
- the calculating of the current compensation value based on the temperature change of the space may include calculating the current compensation value based on the first point in time and a second point in time at which the heating of the second aerosol generating substrate is initiated.
- a method of generating an aerosol, performed by an electronic device may be provided.
- An electronic device for generating an aerosol may be provided.
- first or second are used to explain various components, the components are not limited to the terms. These terms should be used only to distinguish one component from another component.
- a “first” component may be referred to as a “second” component, and similarly the “second” component may be referred to as the "first” component.
- a third component may be “connected,” “coupled,” and “joined” between the first and second components, although the first component may be directly connected, coupled, or joined to the second component.
- FIG. 1 illustrates an electronic device according to an example.
- an electronic device 100 may generate an aerosol by heating an aerosol generating substrate in a cigarette 2 inserted into the electronic device 100.
- a user may be able to inhale the generated aerosol to smoke.
- the electronic device 100 may generate heat using a coil (e.g., an inductive coil) located around the cigarette 2 inserted into the electronic device 100 and employ a scheme of heating the aerosol generating substrate using the generated heat.
- the electronic device 100 may supply a current to the coil such that the coil generates heat.
- an inductive heating scheme using a coil may be advantageous in instantaneous temperature-increasing and consume less power.
- a heater of the electronic device 100 may include a susceptor.
- the heater of the electronic device 100 may not include the susceptor and may heat wrapping paper (e.g., a metal film) wrapping the aerosol generating substrate of the cigarette 2 by induction heating.
- a method of supplying a current to a coil to generate an aerosol will be described in detail below with reference to FIGS. 2 to 6 .
- FIG. 2 is a diagram illustrating a configuration of an electronic device according to an embodiment.
- the electronic device 100 may include a controller 210, a heater 220, an insertion portion 230, a sensing unit 240, and a battery 250.
- the electronic device 100 may further include general-purpose components.
- the electronic device 100 may include a display (or an indicator) for outputting visual information and/or a motor for outputting tactile information.
- the electronic device 100 may further include at least one sensor (e.g., a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, etc.).
- the electronic device 100 may be manufactured to have a structure that allows external air to be introduced or internal gas to be discharged even in a state in which the cigarette 2 is inserted.
- the external air may be introduced through at least one air passage formed in the electronic device 100.
- opening or closing and/or a size of an air path formed in the electronic device 100 may be adjusted by a user. Accordingly, an amount of atomization, a sense of smoking, or the like may be adjusted by the user.
- the external air may be introduced into an inside of the cigarette 2 through at least one hole formed on a surface of the cigarette 2.
- the electronic device 100 may also form a system along with a separate cradle.
- the cradle may be used to charge the battery of the electronic device 100.
- the controller 210 may control operations of the electronic device 100.
- the controller 210 will be described in detail below with reference to FIG. 3 .
- the controller 210 may control a current supplied to the heater 220.
- the controller 210 may control a magnitude and time of the current supplied to the heater 220.
- the heater 220 may heat at least a portion of the cigarette 2 inserted through the insertion portion 230.
- a coil of the heater 220 may heat an aerosol generating substrate of the cigarette 2 by generating heat based on the supplied current.
- the method by which the heater 220 heats an aerosol generating substrate is not limited to the embodiments described above.
- a temperature of the aerosol generating substrate may not be directly measured.
- a temperature sensor of the sensing unit 240 may be disposed on at least a portion of the insertion portion 230.
- the temperature sensor may measure a temperature of a space (hereinafter, referred to as a bobbin space) into which the cigarette 2 is inserted.
- the controller 210 may control a current supplied to the heater 220 based on a temperature measured by the temperature sensor.
- the controller 210 may supply a current to the heater 220 based on a preset initial current profile.
- the initial current profile will be described in detail below with reference to FIG. 4 .
- the battery 250 may supply power to be used to operate the electronic device 100.
- the battery 250 may supply power through the controller 210 such that the coil of the heater 220 may be heated.
- the battery 250 may supply power required for operations of the other components (e.g., the controller 210 and the sensing unit 240) included in the electronic device 100.
- the battery 250 may be a rechargeable battery or a disposable battery.
- the battery 250 may be, for example, a lithium polymer (LiPoly) battery. However, embodiments are not limited thereto.
- FIG. 3 is a diagram illustrating a configuration of a controller according to an embodiment.
- the controller 210 may include a communication unit 310, a processor 320, and a memory 330.
- the communication unit 310 may be connected to the processor 320 and the memory 330 to transmit and receive data to and from the processor 320 and the memory 330.
- the communication unit 310 may be connected to another external device to transmit and receive data to and from the external device.
- the expression "transmitting and receiving A” may be construed as transmitting and receiving "information or data indicating A.”
- the communication unit 310 may be implemented as circuitry in the controller 210.
- the communication unit 310 may include an internal bus and an external bus.
- the communication unit 310 may be an element that connects the controller 210 and the external device.
- the communication unit 310 may be an interface.
- the communication unit 310 may receive data from the external device and transmit the data to the processor 320 and the memory 330.
- the processor 320 may process the data received by the communication unit 310 and data stored in the memory 330.
- a "processor” may be a hardware-implemented data processing device having a physically structured circuit to execute desired operations.
- the desired operations may include, for example, code or instructions included in a program.
- the hardware-implemented data processing device may include a microprocessor, a central processing unit (CPU), a processor core, a multi-core processor, a multiprocessor, an application-specific integrated circuit (ASIC), and a field-programmable gate array (FPGA).
- the processor 320 may execute computer-readable code (e.g., software) stored in a memory (e.g., the memory 330) and instructions triggered by the processor 320.
- computer-readable code e.g., software
- the memory 330 may store the data received by the communication unit 310 and the data processed by the processor 320.
- the memory 330 may store the program (or an application, or software).
- the program to be stored may be a set of syntaxes that are coded and executable by the processor 320 to control the electronic device 100.
- the memory 330 may include at least one volatile memory, nonvolatile memory, random-access memory (RAM), flash memory, a hard disk drive, and an optical disc drive.
- volatile memory nonvolatile memory
- RAM random-access memory
- flash memory flash memory
- hard disk drive hard disk drive
- optical disc drive optical disc drive
- the memory 330 may store an instruction set (e.g., software) for operating the controller 210.
- the instruction set for operating the controller 210 may be executed by the processor 320.
- the communication unit 310, the processor 320, and the memory 330 will be described in detail below with reference to FIGS. 4 to 6 .
- FIG. 4 illustrates a temperature change in an initial current profile and a bobbin space according to an example.
- a user of the electronic device 100 may perform first smoking using a first aerosol generating substrate (e.g., a first cigarette).
- a first aerosol generating substrate e.g., a first cigarette
- the first smoking may be first smoking performed when the electronic device 100 is in an idle state or smoking performed after a significant amount of time is elapsed from last smoking.
- the controller 210 may supply a current to the heater 220 based on an initial current profile 410.
- the initial current profile 410 may have a maximum current value I m for instantaneous temperature-increasing and have a constant current value I s for maintaining a constant temperature.
- the maximum current value I m may be maintained during a peak time tp1.
- the user may terminate the first smoking at a time t e .
- the user may control the electronic device 100 such that power or current supplied to the heater 220 is cut off.
- a temperature sensor of the sensing unit 240 may monitor a temperature of a bobbin space.
- a first temperature curve 421 may represent a temperature of the bobbin space during the first smoking. Although it is illustrated that the first temperature curve 421 starts from an origin, the origin may indicate a temperature at a point in time at which temperature monitoring is initiated. After the temperature of the bobbin space is rapidly increased by the initial current profile 410, the temperature of the bobbin space may remain at a constant level (e.g., a temperature T m ). The first smoking may be performed during a first time (a time 0 to the time t e ).
- the current is not supplied to the heater 220, and the temperature of the bobbin space may decrease.
- the decreasing temperature may be represented by a second temperature curve 422.
- the second curve 422 may appear during a second time (the time t e to a time t 1 ).
- the temperature of the bobbin space may further decrease.
- the decreasing temperature may be represented by a third temperature curve 424.
- the third curve 424 may appear during a third time (the time t 1 to a time t 2 ).
- the second aerosol generating substrate absorbs heat in the bobbin space, so that the temperature of the bobbin space may further decrease.
- the decreasing temperature may be represented by a fourth temperature curve 426.
- the fourth curve 426 may appear during a fourth time (the time t 2 to a time t 3 ).
- that the second aerosol generating substrate absorbs some of the heat in the bobbin space may be treated as that the second aerosol generating substrate is heated before the heater 220 operates. Accordingly, the controller 220 may decrease a current supplied to the heater 220 for second smoking compared to the current supplied for the first smoking. According to an example, the controller 220 may calculate a current compensation value for the heat absorbed by the second aerosol generating substrate and generate a current profile to reflect the calculated current compensation value. A method of controlling a current supplied to a heater for hitting a vape multiple times in a row will be described in detail below with reference to FIGS. 5 and 6 .
- FIG. 5 is a flowchart illustrating a method of controlling a current supplied to a heater according to an embodiment.
- the following operations 510 to 550 may be performed by the electronic device 100 described above with reference to FIGS. 1 to 4 .
- the controller 210 may supply a current to the heater 220 based on a preset initial current profile (e.g., the initial current profile 410 of FIG. 4 ). For example, the controller 210 may supply the current to the heater 220 for first smoking.
- a user may perform smoking of a first aerosol generating substrate inserted into the electronic device 100 during a first time (e.g., the time 0 to the time t e of FIG. 4 ).
- the controller 210 may monitor a temperature of a space (e.g., a bobbin space) in which the first aerosol generating substrate is located after the first smoking is terminated (or completed).
- a space e.g., a bobbin space
- Results of monitoring the temperature of the bobbin space may be represented by the second temperature curve 422, the third temperature curve 424, and the fourth temperature curve 426 described above with reference to FIG. 4 .
- the controller 210 may determine whether the first aerosol generating substrate is removed based on the monitoring. For example, when the second temperature curve 422 appears, it may be determined that the first aerosol generating substrate is removed.
- the controller 210 may determine whether a new aerosol generating substrate is inserted based on the monitoring. For example, that the third temperature curve 424 appears may indicate that the new aerosol generating substrate (e.g., a second aerosol generating substrate) is inserted.
- the temperature of the bobbin space may be represented by the third temperature curve 424 because the new aerosol generating substrate absorbs some of heat in the bobbin space.
- a first point in time at which the new aerosol generating substrate is inserted may be determined based on the monitoring.
- the monitoring of the temperature of the bobbin space may be performed for a preset period of time (e.g., 60 seconds). After the preset period of time, the monitoring of the temperature of the bobbin space may be stopped. According to another embodiment, when a measured temperature of the bobbin space decreases to be less than or equal to a preset threshold temperature (e.g., a temperature T th of FIG. 4 ), the monitoring of the temperature of the bobbin space may be stopped. When the monitoring of the temperature is stopped, operation 530 may not be performed. Smoking that occurs after the monitoring of the temperature is stopped may not be treated as hitting a vape multiple times in a row.
- a preset threshold temperature e.g., a temperature T th of FIG. 4
- the controller 210 may calculate a current compensation value based on a temperature change of the bobbin space. For example, the current compensation value may be calculated based on the first point in time at which the new aerosol generating substrate is inserted and a second point in time at which the heating of the new aerosol generating substrate is initiated.
- an amount of compensation heat may be calculated based on a difference between a temperature T 2 at a time t 2 and a temperature T 3 at a time t 3 .
- the amount of compensation heat may be calculated based on specific heat of a material, a mass of a material, and a temperature change (e.g., T 3 - T 2 ).
- the specific heat of a material and the mass of a material may be set in advance for an aerosol generating substrate to be inserted. Accordingly, the controller 210 may calculate the amount of compensation heat based on the temperature change.
- the controller 210 may calculate the current compensation value based on the amount of compensation heat. For example, a total amount of current may be calculated as the current compensation value, wherein the total amount of current is supplied to the heater 220 such that the calculated amount of compensation heat is generated by the heater 220.
- the controller 210 may generate a compensation current profile by adjusting the initial current profile based on the current compensation value. For example, it may be possible to generate the compensation current profile by decreasing a peak time t p1 of the initial current profile by a time corresponding to the current compensation value. For example, the controller 210 may determine a target decrease in time corresponding to the current compensation value using a maximum current value I m . A time obtained by subtracting the target decrease in time from the peak time t p1 may be a new peak time t p2 of the compensation current profile.
- the compensation current profile will be described in detail below with reference to FIG. 6 .
- the controller 210 may control the current supplied to the heater 220 based on the compensation current profile.
- the user may perform the second smoking based on the compensation current profile.
- FIG. 6 illustrates a temperature change in a compensation current profile and a bobbin space according to an example.
- a user may perform second smoking from a time t 3 following the first smoking described above with reference to FIG. 4 .
- the time t 3 may be a time at which the user activates the heater 220.
- a temperature of a bobbin space at the time t 3 may be measured as T 3 .
- the controller 210 may generate a compensation current profile 610 for the second smoking.
- the controller 210 may calculate a current compensation value based on the fourth curve 426 during the fourth time (the time t 2 to the time t 3 ) measured for the first smoking and generate the compensation current profile 610 by modifying an initial current profile to reflect the current compensation value.
- the controller 210 may decrease a peak time t p1 at which a maximum current value I m of the initial current profile is output to correspond to the current compensation value.
- the compensation current profile 610 may have a peak time t p2 at which the maximum current value I m is output.
- the heater 220 may heat a new aerosol generating substrate using a current supplied based on the compensation current profile 610.
- the temperature of the bobbin space during the second smoking may be represented by a temperature curve 621.
- the user may terminate the second smoking by deactivating the heater 220 at a time t 4 .
- the temperature of the bobbin space may be monitored even after the time t 4 .
- a compensation current profile for the third smoking may be generated.
- the methods according to the embodiments may be recorded in non-transitory computer-readable media including program instructions to implement various operations of the embodiments.
- the media may also include, alone or in combination with the program instructions, data files, data structures, and the like.
- the program instructions recorded on the media may be those specially designed and constructed for the purposes of embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
- Examples of non-transitory computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROM disks or DVDs; magneto-optical media such as floptical disks; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory (ROM), RAM, flash memory, and the like.
- Examples of program instructions include both machine code, such as produced by a compiler, and files containing higher-level code that may be executed by the computer using an interpreter.
- the above-described hardware devices may be configured to act as one or more software modules in order to perform the operations of the embodiments, or vice versa.
- the software may include a computer program, a piece of code, an instruction, or one or more combinations thereof, to independently or collectively instruct or configure the processing device to operate as desired.
- Software and/or data may be embodied permanently or temporarily in any type of machine, component, physical or virtual equipment, computer storage medium or device, or in a propagated signal wave capable of providing instructions or data to or being interpreted by the processing device.
- the software may also be distributed over network-coupled computer systems so that the software may be stored and executed in a distributed fashion.
- the software and data may be stored by one or more non-transitory computer-readable recording mediums.
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Abstract
Description
- The following embodiments relate to a technology of generating an aerosol, and particularly, to a technology for generating heat based on a current.
- There has been an increasing demand for alternative ways to overcome disadvantages of general cigarettes in recent years. For example, the demand for a method of generating an aerosol by heating an aerosol generating substrate included in a cigarette rather than by burning the cigarette is increasing. Accordingly, research on a heating-type cigarette or a heating-type aerosol generating device is being actively conducted.
- An embodiment may provide a method of generating an aerosol that may be performed by an electronic device.
- An embodiment may provide an electronic device that may generate an aerosol.
- According to an embodiment, an electronic device may include a controller configured to control an operation of the electronic device, a heater configured to heat an aerosol generating substrate inserted into the electronic device using a supplied current, and a sensing unit configured to measure a temperature of a space in which the aerosol generating substrate is located, wherein the controller may be configured to control the current supplied to the heater based on an initial current profile, and the controller may be configured to adjust the initial current profile based on a temperature change of the space caused by insertion of a new aerosol generating substrate.
- Adjustment of the current profile may be performed when the new aerosol generating substrate is inserted following completion of smoking of a first aerosol generating substrate.
- The controller may be configured to monitor a temperature change of the space using the sensing unit for a preset period of time when the smoking of the first aerosol generating substrate is completed.
- The controller may be configured to calculate a current compensation value based on the temperature change when smoking of the new aerosol generating substrate is initiated, generate a compensation current profile by adjusting the initial current profile based on the current compensation value, and supply a current to the heater based on the compensation current profile.
- The current compensation value may include a target time calculated for a target current value.
- The controller may be configured to generate the compensation current profile such that a time of outputting the target current value in the initial current profile decreases by the target time.
- According to an embodiment, a method of controlling an electronic device may include, after smoking of a first aerosol generating substrate inserted into the electronic device is completed, monitoring a temperature of a space in which the first aerosol generating substrate is located, when heating of a new second aerosol generating substrate inserted into the space is initiated, calculating a current compensation value based on a temperature change of the space, generating a compensation current profile by adjusting an initial current profile based on the current compensation value, and controlling a current supplied to a heater based on the compensation current profile.
- The monitoring of the temperature of the space may include determining whether the first aerosol generating substrate is removed based on the monitoring.
- The monitoring of the temperature of the space may include determining a first point in time at which the second aerosol generating substrate is inserted based on the monitoring.
- The calculating of the current compensation value based on the temperature change of the space may include calculating the current compensation value based on the first point in time and a second point in time at which the heating of the second aerosol generating substrate is initiated. Effects
- A method of generating an aerosol, performed by an electronic device, may be provided.
- An electronic device for generating an aerosol may be provided.
-
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FIG. 1 illustrates an electronic device according to an example. -
FIG. 2 is a diagram illustrating a configuration of an electronic device according to an example. -
FIG. 3 is a diagram illustrating a configuration of a controller according to an embodiment. -
FIG. 4 illustrates a temperature change in an initial current profile and a bobbin space according to an example. -
FIG. 5 is a flowchart illustrating a method of controlling a current supplied to a heater according to an embodiment. -
FIG. 6 illustrates a temperature change in a compensation current profile and a bobbin space according to an example. - The following structural or functional descriptions of embodiments are merely intended for the purpose of describing the examples and the examples may be implemented in various forms. Accordingly, the embodiments are not to be construed as limited to the disclosure and should be understood to include all changes, equivalents, or replacements within the idea and the technical scope of the disclosure.
- Although terms of "first" or "second" are used to explain various components, the components are not limited to the terms. These terms should be used only to distinguish one component from another component. For example, a "first" component may be referred to as a "second" component, and similarly the "second" component may be referred to as the "first" component.
- It should be understood that if it is described that one component is "connected," "coupled," or "joined" to another component, a third component may be "connected," "coupled," and "joined" between the first and second components, although the first component may be directly connected, coupled, or joined to the second component.
- The singular forms "a," "an," and "the" include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising" or "includes/including" when used herein, specify the presence of stated features, integers, steps, operations, elements, components or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.
- Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as those generally understood by one of ordinary skill in the art to which this disclosure pertains. Terms, such as those defined in commonly used dictionaries, are to be construed to have meanings matching with contextual meanings in the relevant art, and are not to be construed to have an ideal or excessively formal meaning unless otherwise defined herein.
- Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the descriptions of the embodiments referring to the accompanying drawings, like reference numerals refer to like elements and any repeated description related thereto will be omitted.
-
FIG. 1 illustrates an electronic device according to an example. - According to an embodiment, an
electronic device 100 may generate an aerosol by heating an aerosol generating substrate in acigarette 2 inserted into theelectronic device 100. A user may be able to inhale the generated aerosol to smoke. For example, theelectronic device 100 may generate heat using a coil (e.g., an inductive coil) located around thecigarette 2 inserted into theelectronic device 100 and employ a scheme of heating the aerosol generating substrate using the generated heat. Theelectronic device 100 may supply a current to the coil such that the coil generates heat. - According to an embodiment, an inductive heating scheme using a coil may be advantageous in instantaneous temperature-increasing and consume less power. For example, a heater of the
electronic device 100 may include a susceptor. As another example, the heater of theelectronic device 100 may not include the susceptor and may heat wrapping paper (e.g., a metal film) wrapping the aerosol generating substrate of thecigarette 2 by induction heating. - A method of supplying a current to a coil to generate an aerosol will be described in detail below with reference to
FIGS. 2 to 6 . -
FIG. 2 is a diagram illustrating a configuration of an electronic device according to an embodiment. - According to an embodiment, the
electronic device 100 may include acontroller 210, aheater 220, aninsertion portion 230, asensing unit 240, and abattery 250. Although not shown, theelectronic device 100 may further include general-purpose components. For example, theelectronic device 100 may include a display (or an indicator) for outputting visual information and/or a motor for outputting tactile information. In addition, theelectronic device 100 may further include at least one sensor (e.g., a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, etc.). Also, theelectronic device 100 may be manufactured to have a structure that allows external air to be introduced or internal gas to be discharged even in a state in which thecigarette 2 is inserted. - The external air may be introduced through at least one air passage formed in the
electronic device 100. For example, opening or closing and/or a size of an air path formed in theelectronic device 100 may be adjusted by a user. Accordingly, an amount of atomization, a sense of smoking, or the like may be adjusted by the user. As another example, the external air may be introduced into an inside of thecigarette 2 through at least one hole formed on a surface of thecigarette 2. - According to an embodiment, although not shown, the
electronic device 100 may also form a system along with a separate cradle. For example, the cradle may be used to charge the battery of theelectronic device 100. - The
controller 210 may control operations of theelectronic device 100. Thecontroller 210 will be described in detail below with reference toFIG. 3 . - The
controller 210 may control a current supplied to theheater 220. For example, thecontroller 210 may control a magnitude and time of the current supplied to theheater 220. - The
heater 220 may heat at least a portion of thecigarette 2 inserted through theinsertion portion 230. For example, a coil of theheater 220 may heat an aerosol generating substrate of thecigarette 2 by generating heat based on the supplied current. The method by which theheater 220 heats an aerosol generating substrate is not limited to the embodiments described above. - According to an embodiment, when the
heater 220 does not include a susceptor inserted into the aerosol generating substrate of thecigarette 2, a temperature of the aerosol generating substrate may not be directly measured. To monitor the temperature of the aerosol generating substrate or theinsertion portion 230, a temperature sensor of thesensing unit 240 may be disposed on at least a portion of theinsertion portion 230. For example, the temperature sensor may measure a temperature of a space (hereinafter, referred to as a bobbin space) into which thecigarette 2 is inserted. Thecontroller 210 may control a current supplied to theheater 220 based on a temperature measured by the temperature sensor. - According to an embodiment, the
controller 210 may supply a current to theheater 220 based on a preset initial current profile. The initial current profile will be described in detail below with reference toFIG. 4 . - According to an embodiment, the
battery 250 may supply power to be used to operate theelectronic device 100. Thebattery 250 may supply power through thecontroller 210 such that the coil of theheater 220 may be heated. In addition, thebattery 250 may supply power required for operations of the other components (e.g., thecontroller 210 and the sensing unit 240) included in theelectronic device 100. Thebattery 250 may be a rechargeable battery or a disposable battery. Thebattery 250 may be, for example, a lithium polymer (LiPoly) battery. However, embodiments are not limited thereto. -
FIG. 3 is a diagram illustrating a configuration of a controller according to an embodiment. - According to an aspect, the
controller 210 may include acommunication unit 310, aprocessor 320, and amemory 330. - The
communication unit 310 may be connected to theprocessor 320 and thememory 330 to transmit and receive data to and from theprocessor 320 and thememory 330. Thecommunication unit 310 may be connected to another external device to transmit and receive data to and from the external device. Hereinafter, the expression "transmitting and receiving A" may be construed as transmitting and receiving "information or data indicating A." - The
communication unit 310 may be implemented as circuitry in thecontroller 210. For example, thecommunication unit 310 may include an internal bus and an external bus. As another example, thecommunication unit 310 may be an element that connects thecontroller 210 and the external device. Thecommunication unit 310 may be an interface. Thecommunication unit 310 may receive data from the external device and transmit the data to theprocessor 320 and thememory 330. - The
processor 320 may process the data received by thecommunication unit 310 and data stored in thememory 330. A "processor" may be a hardware-implemented data processing device having a physically structured circuit to execute desired operations. The desired operations may include, for example, code or instructions included in a program. For example, the hardware-implemented data processing device may include a microprocessor, a central processing unit (CPU), a processor core, a multi-core processor, a multiprocessor, an application-specific integrated circuit (ASIC), and a field-programmable gate array (FPGA). - For example, the
processor 320 may execute computer-readable code (e.g., software) stored in a memory (e.g., the memory 330) and instructions triggered by theprocessor 320. - The
memory 330 may store the data received by thecommunication unit 310 and the data processed by theprocessor 320. For example, thememory 330 may store the program (or an application, or software). The program to be stored may be a set of syntaxes that are coded and executable by theprocessor 320 to control theelectronic device 100. - According to an aspect, the
memory 330 may include at least one volatile memory, nonvolatile memory, random-access memory (RAM), flash memory, a hard disk drive, and an optical disc drive. - The
memory 330 may store an instruction set (e.g., software) for operating thecontroller 210. The instruction set for operating thecontroller 210 may be executed by theprocessor 320. - The
communication unit 310, theprocessor 320, and thememory 330 will be described in detail below with reference toFIGS. 4 to 6 . -
FIG. 4 illustrates a temperature change in an initial current profile and a bobbin space according to an example. - According to an embodiment, a user of the
electronic device 100 may perform first smoking using a first aerosol generating substrate (e.g., a first cigarette). For example, the first smoking may be first smoking performed when theelectronic device 100 is in an idle state or smoking performed after a significant amount of time is elapsed from last smoking. - The
controller 210 may supply a current to theheater 220 based on an initialcurrent profile 410. For example, the initialcurrent profile 410 may have a maximum current value Im for instantaneous temperature-increasing and have a constant current value Is for maintaining a constant temperature. The maximum current value Im may be maintained during a peak time tp1. The user may terminate the first smoking at a time te. For example, the user may control theelectronic device 100 such that power or current supplied to theheater 220 is cut off. - According to an embodiment, a temperature sensor of the
sensing unit 240 may monitor a temperature of a bobbin space. Afirst temperature curve 421 may represent a temperature of the bobbin space during the first smoking. Although it is illustrated that thefirst temperature curve 421 starts from an origin, the origin may indicate a temperature at a point in time at which temperature monitoring is initiated. After the temperature of the bobbin space is rapidly increased by the initialcurrent profile 410, the temperature of the bobbin space may remain at a constant level (e.g., a temperature Tm). The first smoking may be performed during a first time (atime 0 to the time te). - According to an embodiment, when the first smoking is terminated, the current is not supplied to the
heater 220, and the temperature of the bobbin space may decrease. The decreasing temperature may be represented by asecond temperature curve 422. For example, thesecond curve 422 may appear during a second time (the time te to a time t1). - According to an embodiment, when the user removes the first aerosol generating substrate from the
insertion portion 230, the temperature of the bobbin space may further decrease. The decreasing temperature may be represented by athird temperature curve 424. For example, thethird curve 424 may appear during a third time (the time t1 to a time t2). - According to an embodiment, when the user inserts a second aerosol generating substrate into the
insertion portion 230 to hit a vape multiple times in a row, the second aerosol generating substrate absorbs heat in the bobbin space, so that the temperature of the bobbin space may further decrease. The decreasing temperature may be represented by afourth temperature curve 426. For example, thefourth curve 426 may appear during a fourth time (the time t2 to a time t3). - According to an embodiment, that the second aerosol generating substrate absorbs some of the heat in the bobbin space may be treated as that the second aerosol generating substrate is heated before the
heater 220 operates. Accordingly, thecontroller 220 may decrease a current supplied to theheater 220 for second smoking compared to the current supplied for the first smoking. According to an example, thecontroller 220 may calculate a current compensation value for the heat absorbed by the second aerosol generating substrate and generate a current profile to reflect the calculated current compensation value. A method of controlling a current supplied to a heater for hitting a vape multiple times in a row will be described in detail below with reference toFIGS. 5 and6 . -
FIG. 5 is a flowchart illustrating a method of controlling a current supplied to a heater according to an embodiment. - The following
operations 510 to 550 may be performed by theelectronic device 100 described above with reference toFIGS. 1 to 4 . - In
operation 510, thecontroller 210 may supply a current to theheater 220 based on a preset initial current profile (e.g., the initialcurrent profile 410 ofFIG. 4 ). For example, thecontroller 210 may supply the current to theheater 220 for first smoking. A user may perform smoking of a first aerosol generating substrate inserted into theelectronic device 100 during a first time (e.g., thetime 0 to the time te ofFIG. 4 ). - In
operation 520, thecontroller 210 may monitor a temperature of a space (e.g., a bobbin space) in which the first aerosol generating substrate is located after the first smoking is terminated (or completed). Results of monitoring the temperature of the bobbin space may be represented by thesecond temperature curve 422, thethird temperature curve 424, and thefourth temperature curve 426 described above with reference toFIG. 4 . - According to an embodiment, the
controller 210 may determine whether the first aerosol generating substrate is removed based on the monitoring. For example, when thesecond temperature curve 422 appears, it may be determined that the first aerosol generating substrate is removed. - According to an embodiment, the
controller 210 may determine whether a new aerosol generating substrate is inserted based on the monitoring. For example, that thethird temperature curve 424 appears may indicate that the new aerosol generating substrate (e.g., a second aerosol generating substrate) is inserted. The temperature of the bobbin space may be represented by thethird temperature curve 424 because the new aerosol generating substrate absorbs some of heat in the bobbin space. A first point in time at which the new aerosol generating substrate is inserted may be determined based on the monitoring. - According to an embodiment, the monitoring of the temperature of the bobbin space may be performed for a preset period of time (e.g., 60 seconds). After the preset period of time, the monitoring of the temperature of the bobbin space may be stopped. According to another embodiment, when a measured temperature of the bobbin space decreases to be less than or equal to a preset threshold temperature (e.g., a temperature Tth of
FIG. 4 ), the monitoring of the temperature of the bobbin space may be stopped. When the monitoring of the temperature is stopped,operation 530 may not be performed. Smoking that occurs after the monitoring of the temperature is stopped may not be treated as hitting a vape multiple times in a row. - In
operation 530, when heating of the new aerosol generating substrate is initiated (e.g., initiated at the time t3 ofFIG. 4 ), thecontroller 210 may calculate a current compensation value based on a temperature change of the bobbin space. For example, the current compensation value may be calculated based on the first point in time at which the new aerosol generating substrate is inserted and a second point in time at which the heating of the new aerosol generating substrate is initiated. - According to an embodiment, an amount of compensation heat may be calculated based on a difference between a temperature T2 at a time t2 and a temperature T3 at a time t3. For example, the amount of compensation heat may be calculated based on specific heat of a material, a mass of a material, and a temperature change (e.g., T3 - T2). The specific heat of a material and the mass of a material may be set in advance for an aerosol generating substrate to be inserted. Accordingly, the
controller 210 may calculate the amount of compensation heat based on the temperature change. - According to an embodiment, the
controller 210 may calculate the current compensation value based on the amount of compensation heat. For example, a total amount of current may be calculated as the current compensation value, wherein the total amount of current is supplied to theheater 220 such that the calculated amount of compensation heat is generated by theheater 220. - In
operation 540, thecontroller 210 may generate a compensation current profile by adjusting the initial current profile based on the current compensation value. For example, it may be possible to generate the compensation current profile by decreasing a peak time tp1 of the initial current profile by a time corresponding to the current compensation value. For example, thecontroller 210 may determine a target decrease in time corresponding to the current compensation value using a maximum current value Im. A time obtained by subtracting the target decrease in time from the peak time tp1 may be a new peak time tp2 of the compensation current profile. The compensation current profile will be described in detail below with reference toFIG. 6 . - In
operation 550, thecontroller 210 may control the current supplied to theheater 220 based on the compensation current profile. The user may perform the second smoking based on the compensation current profile. -
FIG. 6 illustrates a temperature change in a compensation current profile and a bobbin space according to an example. - According to an embodiment, a user may perform second smoking from a time t3 following the first smoking described above with reference to
FIG. 4 . For example, the time t3 may be a time at which the user activates theheater 220. For example, a temperature of a bobbin space at the time t3 may be measured as T3. - According to an embodiment, when the second smoking is initiated, the
controller 210 may generate a compensationcurrent profile 610 for the second smoking. For example, thecontroller 210 may calculate a current compensation value based on thefourth curve 426 during the fourth time (the time t2 to the time t3) measured for the first smoking and generate the compensationcurrent profile 610 by modifying an initial current profile to reflect the current compensation value. For example, thecontroller 210 may decrease a peak time tp1 at which a maximum current value Im of the initial current profile is output to correspond to the current compensation value. For example, the compensationcurrent profile 610 may have a peak time tp2 at which the maximum current value Im is output. - The
heater 220 may heat a new aerosol generating substrate using a current supplied based on the compensationcurrent profile 610. The temperature of the bobbin space during the second smoking may be represented by atemperature curve 621. The user may terminate the second smoking by deactivating theheater 220 at a time t4. - Although not shown, similarly to the embodiment of
FIG. 4 , the temperature of the bobbin space may be monitored even after the time t4. When additional third smoking occurs right after the second smoking as the user hits a vape multiple times in a row, a compensation current profile for the third smoking may be generated. - The methods according to the embodiments may be recorded in non-transitory computer-readable media including program instructions to implement various operations of the embodiments. The media may also include, alone or in combination with the program instructions, data files, data structures, and the like. The program instructions recorded on the media may be those specially designed and constructed for the purposes of embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of non-transitory computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROM disks or DVDs; magneto-optical media such as floptical disks; and hardware devices that are specially configured to store and perform program instructions, such as read-only memory (ROM), RAM, flash memory, and the like. Examples of program instructions include both machine code, such as produced by a compiler, and files containing higher-level code that may be executed by the computer using an interpreter. The above-described hardware devices may be configured to act as one or more software modules in order to perform the operations of the embodiments, or vice versa.
- The software may include a computer program, a piece of code, an instruction, or one or more combinations thereof, to independently or collectively instruct or configure the processing device to operate as desired. Software and/or data may be embodied permanently or temporarily in any type of machine, component, physical or virtual equipment, computer storage medium or device, or in a propagated signal wave capable of providing instructions or data to or being interpreted by the processing device. The software may also be distributed over network-coupled computer systems so that the software may be stored and executed in a distributed fashion. The software and data may be stored by one or more non-transitory computer-readable recording mediums.
- As described above, although the embodiments have been described with reference to the limited drawings, one of ordinary skill in the art may apply various technical modifications and variations based thereon. For example, suitable results may be achieved if the described techniques are performed in a different order and/or if components in a described system, architecture, device, or circuit are combined in a different manner or replaced or supplemented by other components or their equivalents.
- Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.
Claims (11)
- An electronic device comprising:a controller configured to control an operation of the electronic device;a heater configured to heat an aerosol generating substrate inserted into the electronic device using a supplied current; anda sensor configured to measure a temperature of a space in which the aerosol generating substrate is located,wherein the controller is configured to control the current supplied to the heater based on an initial current profile, andwherein the controller is configured to adjust the initial current profile based on a temperature change of the space caused by insertion of a new aerosol generating substrate.
- The electronic device of claim 1, wherein adjustment of the current profile is performed when the new aerosol generating substrate is inserted following completion of smoking of a first aerosol generating substrate.
- The electronic device of claim 2, wherein the controller is configured to monitor a temperature change of the space using the sensor for a preset period of time when the smoking of the first aerosol generating substrate is completed.
- The electronic device of claim 3, wherein the controller is configured to:calculate a current compensation value based on the temperature change when smoking of the new aerosol generating substrate is initiated;generate a compensation current profile by adjusting the initial current profile based on the current compensation value; andsupply a current to the heater based on the compensation current profile.
- The electronic device of claim 4, wherein the current compensation value comprises a target time calculated for a target current value.
- The electronic device of claim 5, wherein the controller is configured to generate the compensation current profile such that a time of outputting the target current value in the initial current profile decreases by the target time.
- A method of controlling an electronic device, the method comprising:after smoking of a first aerosol generating substrate inserted into the electronic device is completed, monitoring a temperature of a space in which the first aerosol generating substrate is located;when heating of a new second aerosol generating substrate inserted into the space is initiated, calculating a current compensation value based on a temperature change of the space;generating a compensation current profile by adjusting an initial current profile based on the current compensation value; andcontrolling a current supplied to a heater based on the compensation current profile.
- The method of claim 7, wherein the monitoring of the temperature of the space comprises determining whether the first aerosol generating substrate is removed based on the monitoring.
- The method of claim 7, wherein the monitoring of the temperature of the space comprises determining a first point in time at which the second aerosol generating substrate is inserted based on the monitoring.
- The method of claim 9, wherein the calculating of the current compensation value based on the temperature change of the space comprises calculating the current compensation value based on the first point in time and a second point in time at which the heating of the second aerosol generating substrate is initiated.
- A non-transitory computer-readable storage medium storing instructions that are executable by a processor to perform the method of claim 7.
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KR1020210191071A KR102686085B1 (en) | 2021-12-29 | Generating aerosol method and electronic device performing the method | |
PCT/KR2022/018523 WO2023128286A1 (en) | 2021-12-29 | 2022-11-22 | Aerosol forming method and electronic device for performing method |
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GB2507103A (en) * | 2012-10-19 | 2014-04-23 | Nicoventures Holdings Ltd | Electronic inhalation device |
KR102199792B1 (en) * | 2017-01-18 | 2021-01-07 | 주식회사 케이티앤지 | Heating type fine particle generator |
JP7344199B2 (en) * | 2017-10-05 | 2023-09-13 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Electrically operated aerosol generator with continuous power regulation |
GB201719579D0 (en) * | 2017-11-24 | 2018-01-10 | British American Tobacco Investments Ltd | Removable member for an aerosol provision device |
TW201929702A (en) * | 2017-12-29 | 2019-08-01 | 瑞士商傑太日煙國際股份有限公司 | Heating assembly for a vapour generating device |
KR102184703B1 (en) * | 2018-08-01 | 2020-11-30 | 주식회사 케이티앤지 | Method for controlling heater temperature and aerosol generating device thereof |
KR102270185B1 (en) * | 2018-12-11 | 2021-06-28 | 주식회사 케이티앤지 | Apparatus for generating aerosol |
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