Aerosol-generating device and operating method thereof

Abstract

An aerosol-generating device according to an embodiment comprises: an accommodation space into which an aerosol-generating article is inserted; a heater that heats the aerosol-generating article; an insertion sensing sensor that senses whether the aerosol-generating article is inserted into the accommodation space; the memory comprises a lookup table, and each aerosol generating article is matched with a preset value in the lookup table; and a control unit that, during a heating operation of the heater, when the aerosol-generating article in a state of being inserted into the accommodation space is sensed by the insertion sensing sensor to move from the accommodation space, suspends the heating operation of the heater, and controls the aerosol-generating article to be inserted into the accommodation space for a preset time period from a suspension time point of the heating operation. The control unit determines whether or not to restore the heating operation of the heater in accordance with whether or not the aerosol-generating article is reinserted into the accommodation space.

Description

Technical Field

[0001] The present disclosure relates to an aerosol generating device, and more particularly, to an aerosol generating device that can control the heating operation of a heater according to whether an aerosol generating article is inserted into a receiving space of the aerosol generating device. Background Art

[0002] In recent years, the demand for smoking methods that replace ordinary cigarettes has been increasing. For example, the demand for a method of generating an aerosol by heating an aerosol generating substance in a cigarette instead of burning the cigarette has been increasing. Therefore, research on heated cigarettes or heated aerosol generating devices is actively underway.

[0003] An aerosol generating article inserted into a receiving space of an aerosol generating device may be partially detached from or removed from the receiving space for various reasons. For example, when a user smokes in dry weather, the aerosol generating article may stick to the user's lips and be lifted up.

[0004] When the heater maintains the heating operation in a case where the aerosol generating article is partially detached from the receiving space, since sufficient atomization amount cannot be ensured, sufficient smoking feeling cannot be provided to the user. In addition, when the heater still maintains the heating operation in a case where the aerosol generating article is completely removed from the receiving space, overheating of the heater is caused, resulting in an increase in power consumption and becoming a cause of failure. Summary of the Invention

[0005] Problems to be Solved by the Invention

[0006] The present disclosure provides an aerosol generating device that provides a sufficient smoking feeling and reduces unnecessary power consumption by applying intelligent stop technology.

[0007] The technical problems to be solved by the above embodiments are not limited to the above problems, and those skilled in the art will clearly understand the problems not mentioned from the present disclosure and the drawings.

[0008] Means for Solving the Problems

[0009] An aerosol generating device according to an embodiment includes: a receiving space for inserting an aerosol generating article; a heater for heating the aerosol generating article; an insertion sensing sensor for sensing whether the aerosol generating article is inserted into the receiving space; a memory including a look-up table in which each aerosol generating article is matched with a preset value; and a control unit. During the heating operation of the heater, when the aerosol generating article in the state of being inserted into the receiving space is sensed by the insertion sensing sensor to move out of the receiving space, the control unit suspends the heating operation of the heater, and within a preset grace period starting from the time point when the heating operation is suspended, the control unit determines whether to resume the heating operation of the heater according to whether the aerosol generating article is re-inserted into the receiving space.

[0010] A method of operating an aerosol generating device according to an embodiment includes: during the heating operation of a heater, sensing, by an insertion sensing sensor, whether an aerosol generating article in the state of being inserted into a receiving space moves out of the receiving space; when the aerosol generating article moves out of the receiving space, suspending the heating operation of the heater; and within a preset grace period starting from the time point when the heating operation is suspended, determining whether to resume the heating operation of the heater according to whether the aerosol generating article is re-inserted into the receiving space.

[0011] Advantages of the Invention

[0012] According to an aerosol generating device of an embodiment of the present disclosure, when it is sensed by an insertion sensing sensor that an aerosol generating article moves out of the receiving space of the aerosol generating device, the heating operation of the heater can be controlled to provide a sufficient smoking feeling to the user and reduce unnecessary power consumption.

[0013] The effects according to the embodiments are not limited to the above effects, and those of ordinary skill in the art will clearly understand the effects not mentioned from this specification and the drawings. Description of the Drawings

[0014] Figure 1 A block diagram showing an aerosol generating system according to an embodiment is shown.

[0015] Figure 2 Shows Figure 1 The flowchart of the aerosol generating device control for supplying power to the heater.

[0016] Figure 3 Is used to illustrate Figure 2 The graph of the temperature change of the heater according to the power control method shown in.

[0017] Figure 4a AndFigure 4b A diagram for explaining a method of controlling an inductive sensor of an aerosol generating device according to an embodiment is shown.

[0018] Figure 5a A flowchart showing an aerosol generating device according to an embodiment determining whether an aerosol generating article is moved is shown.

[0019] Figure 5b A flowchart showing an aerosol generating device according to an embodiment controlling power supply to a heater based on whether an aerosol generating article is inserted is shown.

[0020] Figure 6a A diagram for explaining a method of controlling an inductive sensor of an aerosol generating device when an aerosol generating article according to an embodiment is in a first state is shown.

[0021] Figure 6b A diagram for explaining a method of controlling an inductive sensor of an aerosol generating device when an aerosol generating article according to an embodiment is in a second state is shown.

[0022] Figure 6c A diagram for explaining a method of controlling an inductive sensor of an aerosol generating device when an aerosol generating article according to an embodiment is in a third state is shown.

[0023] Figure 7 A diagram for explaining elements constituting an aerosol generating device according to an embodiment is shown.

[0024] Figure 8 and Figure 9 A diagram showing an example of a cigarette is shown.

[0025] Figure 10 A block diagram of an aerosol generating device according to another embodiment is shown. Detailed Description

[0026] Regarding the terms used to describe various embodiments, considering the functions in this specification, commonly used general terms currently in wide use are selected, but the meanings of the terms may change according to the intentions of those skilled in the art, judicial precedents, the emergence of new technologies, etc. Additionally, in specific cases, there are terms arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the description part of the corresponding invention. Therefore, the terms used in the various embodiments of this disclosure should be defined based on the meanings of the terms and the descriptions provided herein.

[0027] Throughout the specification, when a part "includes" a certain component, it means that unless there is a contrary characteristic description, the part may also include other components, rather than excluding other components. In addition, the terms "(... part)" and "(... module)" described in the specification mean units for processing at least one function and operation, and can be implemented by hardware components or software components and combinations thereof.

[0028] Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement it. However, the present invention can be implemented in various different forms and is not limited to the embodiments described in this specification.

[0029] Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail.

[0030] Figure 1 A block diagram of an aerosol generation system according to an embodiment is shown.

[0031] Referring to Figure 1 , the aerosol generation system may include an aerosol generation device 100 and an aerosol generation article 15.

[0032] The aerosol generation device 100 may include a control unit 110, a heater 120, an insertion sensing sensor 130, and an accommodation space 140. According to an embodiment, the aerosol generation article 15 may be accommodated in the accommodation space 140. The aerosol generation device 100 may heat the aerosol generation article 15 inserted into the accommodation space 140 through the heater 120 to generate an aerosol.

[0033] The aerosol generation article 15 may be a cigarette, but is not necessarily limited thereto. There is no special limitation on the aerosol generation article 15 as long as it is an article containing an aerosol generation substance. The aerosol generation article 15 may include an aerosol generation substance and a heat-conducting substance TC. The aerosol generation substance is heated and vaporized by the heater 120 of the aerosol generation device 100 to generate an aerosol.

[0034] The aerosol generation substance may include, for example, at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. In addition, the aerosol generation substance may contain other additive substances such as flavoring agents, wetting agents, and / or organic acids. In addition, a flavoring liquid of menthol or a humectant may be added to the aerosol generation substance.

[0035] The heat-conductive substance TC, being a substance with magnetism and conductivity, has the characteristics of an inherent magnetic permeability and an inherent permittivity. Therefore, the inductance value of the coil and the capacitance value of the capacitor can be changed according to the presence of the heat-conductive substance TC and the movement of the heat-conductive substance TC. For example, the heat-conductive substance TC can be a metallic substance containing at least one of aluminum, nickel, and iron. The heat-conductive substance TC can be a metal foil such as aluminum foil, but is not limited thereto. For example, the heat-conductive substance TC can be made in the form of ink, tape, strip, paper, etc.

[0036] According to one embodiment, the aerosol-generating article 15 can be a cigarette-type extending in one direction. In this case, the aerosol-generating article 15 can include: a tobacco rod containing an aerosol-generating substance; a cooling rod for cooling the aerosol; and a filter rod for filtering impurities. When the aerosol-generating article 15 is of the cigarette type, the tobacco rod can be surrounded by the heat-conductive substance TC. The heat-conductive substance surrounding the tobacco rod can improve the heat conductivity applied to the tobacco rod by uniformly dispersing the heat transferred to the tobacco rod.

[0037] According to another embodiment, the aerosol-generating article 15 can be a cartridge-type containing a liquid aerosol-generating substance. The aerosol-generating article 15 can include: a storage area for accommodating the liquid aerosol-generating substance; a core material for delivering the aerosol-generating substance from the storage area; a heater surrounding the core material and heating the aerosol-generating substance absorbed onto the core material; and contact terminals for connecting the heater and the battery.

[0038] In one embodiment, the heater 120 can heat the aerosol-generating article 15 inserted into the accommodation space of the aerosol-generating device 100.

[0039] For example, the heater 120 can be a heater of the induction heating type. Specifically, the heater 120 can include: an induction coil for heating the aerosol-generating article 15 in an induction heating manner; and a susceptor through which the variable magnetic field generated by the induction coil passes, whereby the susceptor is heated.

[0040] As another example, the heater 120 can be a resistance heater. Specifically, the heater 120 includes a conductive track and can be heated according to the flow of current on the conductive track. However, the heater 120 is not limited to the above examples, as long as it can be heated to a desired temperature, there is no special limitation. At this time, the desired temperature can be preset in the aerosol-generating device 100 or can be set by the user to the required temperature.

[0041] In one embodiment, the insertion sensing sensor 130 can include at least one of an inductive sensor 132, a temperature sensor 133, and a capacitance sensor 134.

[0042] The inductive sensor 132 can sense whether the aerosol-generating article 15 in the accommodation space of the aerosol-generating device 100 is removed, partially moved, or inserted.

[0043] The inductive sensor 132 can measure the inductance value of the coil and the coil. According to Faraday's law of electromagnetic induction, when the magnetic field around the coil through which current flows changes, the characteristics of the current flowing in the coil will change.

[0044] As the aerosol-generating article 15 is inserted into or removed from the accommodation space 140, eddy currents can be generated in the heat-conducting material TC of the aerosol-generating article 15 by the current flowing through the coil. The eddy currents flowing in the heat-conducting material TC can re-induce with the coil, thereby changing the characteristics of the current such as the frequency of the current flowing through the coil and the inductance value of the coil.

[0045] The inductive sensor 132 can measure the characteristic values of the changed current. For example, the characteristics of the current flowing through the coil can include the frequency value, current value, voltage value, inductance value, effective resistance, impedance value, etc. of the alternating current. The inductive sensor 132 can also include a frequency measurement element, a rectifier, an amplifier, an oscillation circuit that generates electrical oscillations, etc.

[0046] The inductive sensor 132 measuring the inductance value of the coil means including measuring any one of the values of the characteristics of the current flowing through the coil and obtaining the inductance value from the measured characteristic values of the current through calculation. The temperature sensor 133 can sense whether the aerosol-generating article 15 in the accommodation space of the aerosol-generating device 100 is removed, partially moved, or inserted. The temperature sensor 133 can sense the temperature change generated as the aerosol-generating article 15 is removed from the accommodation space, partially moved in the accommodation space, or inserted into the accommodation space.

[0047] The capacitance sensor 134 can sense whether the aerosol-generating article 15 in the accommodation space of the aerosol-generating device 100 is removed, partially moved, or inserted.

[0048] The capacitance sensor 134 can measure the capacitance value between two electrodes.

[0049] The capacitance sensor 134 can include two electrodes facing each other. A dielectric can be arranged between the two electrodes. The movement of the heat-conducting material TC generated by the insertion and removal of the aerosol-generating material 14 in the accommodation space 140 affects the electric field between the two electrodes and can change the capacitance value between the two electrodes. The capacitance sensor 134 can measure the capacitance value.

[0050] In one embodiment, the control unit 110 may determine whether the aerosol-generating article 15 is inserted into the accommodation space 140 based on the sensed value sensed by the insertion sensing sensor 130. At this time, the sensed value may include at least one of an inductance value measured by the inductive sensor 132, a temperature value measured by the temperature sensor 133, and a capacitance value measured by the capacitance sensor 134.

[0051] In one embodiment, the control unit 110 may be hardware that controls the overall operation of the aerosol-generating device 100. For example, the control unit 110 may not only control the operations of the heater 120 and the insertion sensing sensor 130, but also control the operations of other structures included in the aerosol-generating device 100. In one embodiment, the control unit 110 may also determine whether the aerosol-generating device 100 is in a state capable of performing an operation by confirming the states of the respective structures of the aerosol-generating device 100.

[0052] In addition, the internal structure of the aerosol-generating device 100 is not limited to Figure 1 shown. According to the design of the aerosol-generating device 100, those of ordinary skill in the art can understand that Figure 1 a part of the hardware structure shown in may be omitted, or other components may be further added.

[0053] Figure 2 shows Figure 1 a flowchart of the aerosol-generating device control for supplying power to the heater.

[0054] Referring to Figure 1 and Figure 2 , in operation 201, the control unit 110 may sense, through the insertion sensing sensor 130, whether the aerosol-generating article 15 in the state of being inserted into the accommodation space 140 moves out of the accommodation space 140 during the heating operation of the heater 120. At this time, the movement of the aerosol-generating article 15 may include: a case where the front end FE of the aerosol-generating article 15 is separated from the bottom surface of the accommodation space 140 by a preset distance; or a case where the front end FE of the aerosol-generating article 15 opposite to the bottom surface of the accommodation space 140 completely disengages from the accommodation space 140.

[0055] When the change amount of the sensed value sensed by using the insertion sensing sensor 130 is different from a preset value, the control unit 110 may determine that the aerosol-generating article 15 has moved. For example, when the change amount of the sensed value sensed by using the insertion sensing sensor 130 is equal to or greater than a preset value (or a first critical value), the control unit 110 may determine that the aerosol-generating article 15 has moved.

[0056] In one embodiment, the control unit 110 senses the change in inductance through the inductive sensor 132, whereby it can sense whether the aerosol-generating article 15 has moved from the accommodation space 140 of the aerosol-generating device 100. For example, the aerosol-generating article 15 inserted and disposed in the accommodation space 140 of the aerosol-generating device 100 may include a heat-conductive material TC. A magnetic field can be generated on one surface of the inductive sensor 132. If the heat-conductive material TC located within the magnetic field generated by the inductive sensor 132 moves, the control unit 110 can sense, through the inductive sensor 132, that the inductance value changes due to the movement of the heat-conductive material TC. When the change in inductance is greater than a preset value, the control unit 110 can sense that the aerosol-generating article 15 has moved from the accommodation space 140 of the aerosol-generating device 100.

[0057] In other embodiments, the control unit 110 can also sense the temperature change through the temperature sensor 133, so as to sense whether the aerosol-generating article 15 has moved from the accommodation space 140 of the aerosol-generating device 100. For example, when the aerosol-generating article 15 inserted and disposed in the accommodation space of the aerosol-generating device 100 moves (or is removed), the temperature sensor 133 can sense that the internal temperature of the aerosol-generating device 100 increases sharply. When the change in temperature is greater than a preset value, the control unit 110 can also sense that the aerosol-generating article 15 has moved from the accommodation space of the aerosol-generating device 100.

[0058] In other embodiments, the control unit 110 can also sense the change in capacitance through the capacitance sensor 134, so as to sense whether the aerosol-generating article 15 has moved from the accommodation space 140 of the aerosol-generating device 100. For example, the aerosol-generating article 15 inserted and disposed in the accommodation space 140 of the aerosol-generating device 100 may include a heat-conductive material TC. The movement of the heat-conductive material TC caused by the insertion and removal of the aerosol-generating substance 14 in the accommodation space 140 affects the electric field between the two electrodes and can change the capacitance value between the two electrodes. When the heat-conductive material TC moves between the two electrodes, the control unit 110 can sense, through the capacitance sensor 134, that the capacitance value changes due to the movement of the heat-conductive material TC. When the change in capacitance is greater than a preset value, the control unit 110 can sense that the aerosol-generating article 15 has moved from the accommodation space 140 of the aerosol-generating device 100.

[0059] Figure 1 Although not shown in the figure, the aerosol-generating device 100 may further include a memory (refer to Figure 101070), the memory includes a lookup table, and each aerosol-generating article 15 is matched with the preset value in the lookup table. The preset value refers to a critical value (i.e., the change amount of the sensed value) at which the atomization amount of the aerosol provided to the user can be regarded as appropriate, and can be calculated for each aerosol-generating article 15 by experimental and / or statistical methods. This is because, even when the movement of the aerosol-generating article 15 in the accommodation space 140 is the same, the atomization amount generated when the type and / or content of the aerosol-generating substance contained in the aerosol-generating article 15 are different will also be different.

[0060] In addition, the preset value (i.e., the change amount of the sensed value) can be converted into a distance moved from the bottom surface of the accommodation space 140. When the aerosol-generating article 15 moves a distance within the preset distance from the bottom surface of the accommodation space 140, the atomization amount provided by the aerosol-generating article 15 can provide the user with a sufficient smoking sensation. For example, when the aerosol-generating article 15 moves a distance within 4 mm from the bottom surface of the accommodation space 140, an atomization amount substantially the same as that when the aerosol-generating article 15 is normally inserted into the accommodation space 140 can be provided to the user.

[0061] In operation 202, during the heating operation of the heater 120, when it is sensed by the insertion sensing sensor 130 that the aerosol-generating article 15 in the state of being inserted into the accommodation space 140 moves out of the accommodation space 140, the control unit 110 may pause the heating operation of the heater 120.

[0062] When the aerosol-generating article 15 moves in the accommodation space 140 regardless of the user's intention, the control unit 110 may immediately stop (OFF) the heating operation of the heater 120. Therefore, the aerosol-generating device 100 can prevent unnecessary power consumption.

[0063] In addition, when the heating operation of the heater 120 is stopped when the aerosol-generating article 15 moves a preset distance or more in the accommodation space 140, it is possible to prevent the provision of a low-quality smoking sensation to the user due to insufficient atomization amount. When the heating operation of the heater 120 is stopped when the aerosol-generating article 15 is completely removed from the accommodation space 140, it is possible to prevent the heater from overheating, thereby preventing an increase in power consumption and the cause of a malfunction in advance.

[0064] During the heating operation of the heater 120, when it is sensed by the insertion sensing sensor 130 that the aerosol-generating article 15 in the state of being inserted into the accommodation space 140 moves out of the accommodation space 140, according to one embodiment, the control unit 110 may provide an alarm and / or warning to the user through the output unit (refer to Figure 10 1030).

[0065] For example, during the heating operation of the heater 120, when it is sensed by inserting the sensing sensor 130 that the aerosol generating article 15 in the state of being inserted into the accommodation space 140 moves out of the accommodation space 140, the control unit 110 may display, through the display unit (refer to Figure 10 1032), a statement or pattern indicating that the aerosol generating article 15 is abnormally inserted, or display a flashing red screen. Additionally, the control unit 110 may also provide a preset vibration pattern through the haptic unit (refer to Figure 10 1034), or output, through the audio output unit (refer to Figure 10 1036), a voice indicating that the aerosol generating article 15 is abnormally inserted or an audio such as a beeping sound.

[0066] In operation 203, the control unit 110 may determine whether the aerosol generating article 15 is re-inserted into the accommodation space 140 within a preset grace period starting from the time point when the heating operation of the heater 120 is paused.

[0067] If the change amount of the sensed value sensed by using the insertion sensing sensor 130 reaches a preset value (or a second threshold value) or more within the preset grace period, the control unit 110 may determine that the aerosol generating article 15 is re-inserted. For example, when the preset grace period is 5 seconds, if the change amount of the sensed value sensed within 5 seconds is greater than the preset value, the control unit 110 may determine that the aerosol generating article 15 is re-inserted.

[0068] On the contrary, if the change amount of the sensed value sensed by using the insertion sensing sensor 130 is less than the preset value (or the second threshold value) within the preset grace period, the control unit 110 may determine that the aerosol generating article 15 is not re-inserted. For example, when the specified time is 5 seconds, if the change amount of the sensed value sensed within 5 seconds is less than the preset value, the control unit 110 may determine that the aerosol generating article 15 is not re-inserted.

[0069] In operation 204, the control unit 110 may determine whether to resume the heating operation of the heater 120 according to whether the aerosol generating article 15 is re-inserted into the accommodation space 140.

[0070] When it is determined that the aerosol-generating article 15 is re-inserted into the accommodation space 140 within a preset grace period, the control unit 110 may automatically resume the heating operation of the heater 120. When the aerosol-generating article 15 accidentally moves from the aerosol-generating device 100 against the user's intention, the heater 120 is immediately paused. However, if the aerosol-generating article 15 is re-inserted within the grace period, the heating operation of the heater 120 can be automatically resumed, thereby providing convenience in use and uninterrupted smoking. In addition, the control unit 110 can control the power supply of the heater 120 by pausing and resuming, rather than in a completely stopped (turn off) and turned on (turn on) manner, thereby minimizing power waste to the greatest extent.

[0071] Conversely, when it is determined that the aerosol-generating article 15 is not re-inserted into the accommodation space 140 within a preset grace period, the control unit 110 may completely stop the heating operation of the heater 120. At this time, stopping the power supply to the heater 120 may indicate the end of the user's smoking.

[0072] Figure 3 It is used to illustrate Figure 2 The graph of the temperature change according to the power control method of the heater shown in. At this time, the curve represented by the solid line indicates the first temperature curve in the case where the aerosol-generating article is re-inserted within the grace period, and the curve represented by the dashed line indicates the second temperature curve in the case where the aerosol-generating article is not re-inserted within the grace period.

[0073] Referring to Figure 3 , the first temperature curve TG1 represents the temperature values at each time, and can be divided into a first section P1 as a preheating section and a second section P2 as a smoking section based on the first time point t1.

[0074] The first section P1 may include a section where the temperature rises from the first temperature T1 as the outdoor temperature to the second temperature T2 at which the aerosol-generating substance is volatilized and a section where the temperature drops to the third temperature T3 as the smoking start temperature. The second section P2 may include a section where the temperature drops from the third temperature T3 to the fourth temperature T4 as the maintenance temperature and a section where the fourth temperature T4 is maintained. At this time, the second temperature T2, the third temperature T3, and the fourth temperature T4 are above the temperature at which the aerosol-generating substance is volatilized and may vary depending on the type of aerosol-generating substance.

[0075] Referring to Figures 1 to 3 , an event may occur in the second section P2 where the aerosol-generating article 15 moves from the accommodation space 140.

[0076] When the change amount of the sensed value sensed by the insertion sensing sensor 130 is equal to or greater than a preset value (or a first critical value), the control unit 110 may determine that the aerosol generating article 15 has moved. During the heating operation of the heater 120, at the second time point t2 when it is determined through the insertion sensing sensor 130 that the aerosol generating article 15 in the state of being inserted into the accommodation space 140 has moved out of the accommodation space 140, the control unit 110 may immediately suspend the heating operation of the heater 120.

[0077] Therefore, the first temperature curve TG1 and the second temperature curve TG2 may include an interval in which the temperature decreases from the fourth temperature T4 as the maintenance temperature to the fifth temperature T5 as the standby temperature. At this time, the fifth temperature T5 may decrease in proportion to the time taken until the aerosol generating article 15 is re-inserted. However, the fifth temperature T5 may have a lower limit value within a preset grace period (e.g., 5 seconds). The fifth temperature T5 may be set to a temperature at which the heating operation of the heater 120 can be restored to return to the fourth temperature T4 before the user perceives a temperature decrease (or a decrease in the smoking sensation).

[0078] When it is determined at the third time point t3 that the aerosol generating article 15 has been re-inserted into the accommodation space 140 within the preset grace period, the control unit 110 may automatically resume the heating operation of the heater 120. Therefore, the first temperature curve TG1 may include an interval in which the temperature rises from the fifth temperature T5 as the standby temperature to the fourth temperature T4 as the maintenance temperature.

[0079] On the contrary, when it is determined at the third time point t3 that the aerosol generating article 15 has not been re-inserted into the accommodation space 140 within the preset grace period, the control unit 110 may completely stop the heating operation of the heater 120. Therefore, the second temperature curve TG2 may include an interval in which the temperature decreases from the fifth temperature T5 as the standby temperature to the first temperature T1 as the outdoor temperature.

[0080] Figure 4a and Figure 4b The figure shows a diagram for explaining a method of controlling an inductive sensor of an aerosol generating device according to an embodiment.

[0081] Refer to Figure 1 and Figure 4a, the control unit 110 may sense the inductance change through the inductive sensor 132 during the grace period 400. For example, the control unit 110 may control the voltage of the inductive sensor 132 in a PWM (pulse width modulation) manner to sense the inductance change. At this time, the control unit 110 may preset the number of times the inductive sensor 132 switches to the active state within the grace period 400. FIG. 4 shows a case where the inductive sensor 132 switches to the active state 5 times within the grace period 400, but is not limited thereto.

[0082] In one embodiment, the control unit 110 may determine that the aerosol generating article 15 moves from the accommodation space 140 of the aerosol generating device 100 at the eleventh time point t11. The eleventh time point t11 may refer to the time point when the grace period 400 starts to be timed.

[0083] In one embodiment, the control unit 110 may switch the state of the inductive sensor 132 to the active state according to a constant period by controlling the supply voltage to the inductive sensor 132 at the twenty - first time point t21. At this time, if the aerosol generating article 15 is not re - inserted within the grace period 400, the heating operation of the heater 120 will be in a suspended state. Therefore, the internal temperature of the aerosol generating device 100 may decrease from the fourth temperature T4 to the fifth temperature T5. Therefore, there is no need to periodically stop the heating of the heater 120 additionally to prevent the inductance value sensed by the inductive sensor 132 from being distorted at high temperatures.

[0084] In one embodiment, the control unit 110 may switch the state of the inductive sensor 132 to the inactive state at the thirty - first time point t31.

[0085] In one embodiment, from the eleventh time point t11 to the forty - first time point t41, the control unit 110 may sense the inductance change through the inductive sensor 132 at least once or more (for example: 5 times). The control unit 110 may determine whether the aerosol generating article 15 is re - inserted based on the change amount of the inductance sensed within the grace period 400 from the eleventh time point t11 to the forty - first time point t41. For example, when the change amount of the inductance sensed within the grace period 400 from the eleventh time point t11 to the forty - first time point t41 is less than the critical value, the control unit 110 determines that the aerosol generating article 15 is not re - inserted, and when the change amount of the inductance is above the critical value, the control unit 110 may determine that the aerosol generating article 15 is re - inserted.

[0086] However, compared with only showing the time point (or the period of the grace period) after the aerosol generating article 15 moves from the accommodation space of the aerosol generating device 100 Figure 4aDifferently, in the case of determining the specified time 410 during which the aerosol generating article 15 moves from the accommodation space 140 of the aerosol generating device 100, as Figure 4b shown, the control unit 110 can switch the state of the inductive sensor 132 to the active state by controlling the supply voltage to the inductive sensor 132 at the twenty - first time point t21. At this time, the control unit 110 can block the power supplied from the battery to the heater 120 at the twenty - first time point t21. That is, the control unit 110 can perform the action of blocking the power supplied to the heater 120 and the action of switching the state of the inductive sensor 132 to the active state in parallel. In one embodiment, as the power supplied to the heater 120 is blocked at the twenty - first time point t21, the internal temperature of the aerosol generating device 100 may substantially decrease. The inductance value sensed by the inductive sensor 132 may be distorted at high temperatures, so the control unit 110 periodically stops the heating of the heater 120 and can sense the inductance change through the inductive sensor 132.

[0087] In one embodiment, the control unit 110 can switch the state of the inductive sensor 132 to the non - active state at the thirty - first time point t31. At this time, the control unit 110 can control to supply power from the battery to the heater 120 at the thirty - first time point t31. That is, the control unit 110 can perform the action of supplying power to the heater 120 and the action of switching the state of the inductive sensor 132 to the non - active state in parallel. In one embodiment, as the power is supplied to the heater 120 at the thirty - first time point t31, the internal temperature of the aerosol generating device 100 may substantially increase.

[0088] Figure 5a The flowchart shows the aerosol generating device according to an embodiment for determining whether the aerosol generating article moves. Figure 5a It is for specifically explaining Figure 2 the actions 201 and 202, so for the description of Figure 5a the corresponding, identical or similar content will be omitted.

[0089] Referring to Figure 1 、 Figure 2 and Figure 5a , in action 201a, the control unit 110 can sense the first inductance change through the inductive sensor 132 at a constant period. For example, the first inductance change may refer to the minimum inductance change value determined that the aerosol generating article 15 moves.

[0090] In one embodiment, the control unit 110 switches the state of the inductive sensor 132 to the active state according to a constant period, and may block the power supplied to the heater 120. At this time, the constant period may refer to the optimal period capable of sensing an inductance change through the inductive sensor 132. For example, when the constant period is set to 1 second, the control unit 110 switches the state of the inductive sensor 132 to the active state at 1-second intervals, and may block the power supplied to the heater 120.

[0091] In one embodiment, after the control unit 110 switches the state of the inductive sensor 132 to the active state within the constant period, it may acquire data on the inductance change, and switch the state of the inductive sensor 132 to the inactive state. For example, when the constant period is set to 1 second, after the control unit 110 switches the state of the inductive sensor 132 to the active state, it may acquire data on the inductance change within 30 ms, and switch the state of the inductive sensor 132 to the inactive state and maintain it for 970 ms.

[0092] According to one embodiment, in operation 201b, the control unit 110 may determine, through the inductive sensor 132, whether the magnitude of the first inductance change sensed is equal to or greater than a first critical value. For example, the first critical value may refer to the minimum value of the inductance change amount generated as the aerosol generating article 15 containing the heat-conductive substance TC moves from the accommodation space of the aerosol generating device 100.

[0093] In one embodiment, when it is determined that the magnitude of the first inductance change sensed is equal to or greater than the first critical value, the control unit 110 may sense that the aerosol generating article 15 has moved in operation 201c. In other embodiments, when it is determined that the magnitude of the first inductance change sensed is less than the first critical value, the control unit 110 may return to operation 201a and re-execute the following operations.

[0094] According to one embodiment, in operation 202a, when, during the heating operation of the heater 120, it is sensed by the insertion sensing sensor 130 that the aerosol generating article 15 in the state of being inserted into the accommodation space 140 has moved from the accommodation space 140, the control unit 110 may pause the heating operation of the heater 120.

[0095] When the aerosol generating article 15 moves within the accommodation space 140 regardless of the user's intention, the control unit 110 may immediately stop (turn off) the heating operation of the heater 120. Accordingly, the aerosol generating device 100 may prevent unnecessary power consumption.

[0096] According to an embodiment, in operation 202a, when it is sensed by inserting the sensing sensor 130 during the heating operation of the heater 120 that the aerosol generating article 15 in the state of being inserted into the accommodation space 140 moves from the accommodation space 140, the control unit 110 may also provide an alarm and / or a warning to the user through the output unit (refer to Figure 10 1030).

[0097] Figure 5b The flowchart shows that the aerosol generating device according to an embodiment controls the power supply to the heater based on whether the aerosol generating article is inserted or not. Figure 5b It is used to specifically illustrate Figure 2 Operations 203 and 204, so in terms of the description of Figure 5b the corresponding, identical or similar content will be omitted.

[0098] Refer to Figure 5b , in operation 203a, the control unit 110 may set the sensing time t of the inductance change to 1. For example, the control unit 110 may perform counting for a specified time (e.g., Figure 4a the grace period 400) by setting the sensing time t of the inductance change to 1.

[0099] According to an embodiment, in operation 203b, the control unit 110 may sense a second inductance change through the inductive sensor 132. For example, the second inductance change may refer to the minimum inductance change value determined that the aerosol generating article 15 is re-inserted.

[0100] In an embodiment, the control unit 110 may switch the state of the inductive sensor 132 to the active state according to a constant period. At this time, the constant period may refer to the optimal period for sensing the inductance change through the inductive sensor 132. For example, when the constant period is set to 1 second, the control unit 110 may switch the state of the inductive sensor 132 to the active state at intervals of 1 second.

[0101] In an embodiment, after the control unit 110 switches the state of the inductive sensor 132 to the active state within the constant period, it may obtain data on the inductance change and switch the state of the inductive sensor 132 to the non-active state. For example, when the constant period is set to 1 second, after the control unit 110 switches the state of the inductive sensor 132 to the active state, it may obtain data on the inductance change within 30 ms and switch the state of the inductive sensor 132 to the non-active state to maintain it for 970 ms.

[0102] According to one embodiment, in operation 203c, the control unit 110 may determine whether the magnitude of the second inductance change sensed by the inductive sensor 132 is equal to or greater than a second threshold value. For example, the second threshold value may refer to the minimum value of the inductance change generated as the aerosol generating article 15 containing the heat conductive material TC is reinserted into the accommodation space 140 of the aerosol generating device 100.

[0103] In one embodiment, when it is determined that the magnitude of the sensed second inductance change is equal to or greater than the second threshold value, in operation 204a, the control unit 110 may resume the heating operation of the heater 120. For example, when it is determined that the magnitude of the sensed second inductance change is equal to or greater than the second threshold value, the control unit 110 may resume power supply from the battery to the heater 120.

[0104] In other embodiments, when it is determined that the magnitude of the sensed second inductance change is less than the second threshold value, in operation 203d, the control unit 110 may determine whether the sensing time t of the inductance change is the same as the grace period (t 宽限 ).

[0105] In one embodiment, when it is determined that the sensing time t of the inductance change is different from the grace period, in operation 203e, the control unit 110 may calculate the sensing time t of the inductance change as t + 1. For example, when the sensing time of the inductance change is 1 second (t = 1) and the grace period is 5 seconds (t 宽限 = 5), the control unit 110 may calculate the sensing time of the inductance change as 2 seconds (t = 2). Then, the control unit 110 may return to operation 203b and re - execute the following operations.

[0106] In one embodiment, when it is determined that the sensing time t of the inductance change is the same as the specified time, in operation 204b, the control unit 110 may stop power supply to the heater 120. For example, when the sensing time of the inductance change is 5 seconds (t = 5) and the grace period is 5 seconds (t 宽限 = 5), the control unit 110 may block the power supplied from the battery to the heater 120.

[0107] Figure 6a It is a diagram for explaining a method of controlling an inductive sensor of an aerosol generating device in the case where an aerosol generating article is in a first state according to one embodiment. The first state may refer to a state where the aerosol generating article 15 is fully inserted into the accommodation space 140 of the aerosol generating device 100.

[0108] Referring to Figure 1 and Figure 6a , the aerosol generating system may include an aerosol generating device 100 and an aerosol generating article 15.

[0109] In one embodiment, the aerosol generating device 100 may include a receiving space 140 capable of inserting the aerosol generating article 15.

[0110] In one embodiment, the aerosol generating device 100 may include an inductive sensor 132, a susceptor 620, and an induction coil 630. In one embodiment, the induction coil 630 may generate a variable magnetic field by receiving power from a battery, and the susceptor 620 may be heated by the variable magnetic field generated by the induction coil 630. For example, the induction coil 630 may be arranged to surround the outer peripheral surface of the susceptor 620.

[0111] In one embodiment, the inductive sensor 132 may include a first channel 600 and a second channel 610. For example, the first channel 600 may sense a change in inductance generated by a first part of the aerosol generating article, and the second channel 610 may sense a change in inductance generated by a second part different from the first part. In one embodiment, the first channel 600 and the second channel 610 may be arranged so as not to overlap with the susceptor 620. For example, the first channel 600 may be arranged in a region provided below the susceptor 620 (for example, a region arranged in the -x direction), and the second channel 610 may be arranged in a region provided above the susceptor 620 (for example, a region arranged in the +x direction). As the first channel 600 and the second channel 610 are arranged so as not to overlap with the susceptor 620, the first channel 600 and the second channel 610 may sense a change in inductance without being affected by the variable magnetic field generated by the induction coil 630.

[0112] Figure 6b It is a diagram for explaining a method of controlling the inductive sensor of the aerosol generating device in the case where the aerosol generating article is in a second state according to an embodiment. The second state may refer to a state in which a part of the aerosol generating article 15 has moved a predetermined distance from the receiving space of the aerosol generating device 100.

[0113] Referring to Figure 1 and Figure 6b , when the aerosol generating article 15 moves from the receiving space of the aerosol generating device 100 in the +x direction, the control unit 110 may sense a change in inductance through a part of a plurality of channels of the inductive sensor 132. For example, the control unit 110 may sense a change in inductance through the first channel 600 of the inductive sensor 132. In one embodiment, when a change in inductance can only be sensed through a part of a plurality of channels of the inductive sensor 132, it may be regarded that the change amount of the inductance is less than a first critical value (refer to FIG. 5), and thus the control unit 110 may not start timing for a specified time.

[0114] Figure 6cThis is a diagram for explaining the manner of controlling an inductive sensor of an aerosol generating device when the aerosol generating article is in a third state according to an embodiment. The third state may refer to a state where the aerosol generating article 15 is completely removed from the accommodation space of the aerosol generating device 100.

[0115] Referring to Figure 6c , when the aerosol generating article 15 is completely removed from the accommodation space of the aerosol generating device 100 in the +x direction, the control unit 110 can sense the change in inductance through a plurality of channels of the inductive sensor 132. For example, the control unit 110 can sense the change in inductance through the first channel 600 and the second channel 610 of the inductive sensor 132. In one embodiment, when the change in inductance is sensed through a plurality of channels (two channels) of the inductive sensor 132, it can be regarded that the change amount of the inductance is above a first critical value (refer to FIG. 5), and the control unit 110 can start counting for a specified time.

[0116] Figure 7 This is a diagram for explaining the elements constituting an aerosol generating device according to an embodiment.

[0117] Referring to Figure 7 , the aerosol generating device 100 may include a susceptor 122, an induction coil 124, a battery 115, and a control unit 110. However, it is not limited thereto, and other general elements may also be included in the aerosol generating device 100 in addition to Figure 7 the elements shown.

[0118] The aerosol generating device 100 heats the aerosol generating article 15 accommodated in the aerosol generating device 100 by induction heating, thereby generating an aerosol. The induction heating method may refer to a method of heating the susceptor 122 by applying an alternating magnetic field whose direction changes periodically to the susceptor 122 that generates heat by relying on an external magnetic field.

[0119] When the susceptor 122 is applied with an alternating magnetic field, energy losses caused by eddy current loss and hysteresis loss may occur in the susceptor 122, and the lost energy can be released from the susceptor 122 as heat energy. The greater the amplitude or frequency of the alternating magnetic field applied to the susceptor 122, the more heat energy can be released from the susceptor 122. The aerosol generating device 100 can release heat energy from the susceptor 122 by applying an alternating magnetic field to the susceptor 122, and can transfer the heat energy released from the susceptor 122 to the aerosol generating article 15. In one embodiment, the susceptor 122 can be provided in the aerosol generating device 100 in the form of fragments, flakes or strips, etc.

[0120] At least a part of the susceptor 122 can be made of a ferromagnetic substance. For example, the susceptor 122 can include a metal or carbon. The susceptor 122 can include at least one of ferrite, ferromagnetic alloy, stainless steel and aluminum. In addition, the susceptor 122 can include at least one of ceramics such as graphite, molybdenum, silicon carbide, niobium, nickel alloy, metal film, zirconia, etc., transition metals such as nickel (Ni) or cobalt (Co), and metalloids such as boron (B) or phosphorus (P).

[0121] The aerosol generating device 100 can accommodate the aerosol generating article 15. An accommodation space 140 for accommodating the aerosol generating article 15 can be formed in the aerosol generating device 100.

[0122] The susceptor 122 can surround at least a part of the outer side surface of the aerosol generating article 15 accommodated in the aerosol generating device 100. For example, the susceptor 122 can surround the tobacco medium contained in the aerosol generating article 15. Therefore, heat can be transferred from the susceptor 122 to the tobacco medium more effectively.

[0123] The induction coil 124 can be disposed in the aerosol generating device 100. The induction coil 124 can apply an alternating magnetic field to the receptor 122. When power is supplied from the aerosol generating device 100 to the induction coil 124, a magnetic field can be formed inside the induction coil 124. When an alternating current is applied to the induction coil 124, the direction of the magnetic field formed inside the induction coil 124 can continuously change. When the receptor 122 is located inside the induction coil 124 and is exposed to the alternating magnetic field whose direction periodically changes, the receptor 122 can generate heat, so that the aerosol generating article 15 accommodated in the accommodation space of the aerosol generating device 100 can be heated.

[0124] The induction coil 124 can be wound around the outer side surface of the receptor 122. Additionally, the induction coil 124 can be wound around the inner surface of the outer casing of the aerosol generating device 100. The receptor 122 can be disposed in the internal space formed by the winding of the induction coil 124. When power is supplied to the induction coil 124, the alternating magnetic field generated by the induction coil 124 can be applied to the receptor 122.

[0125] The induction coil 124 can extend in the longitudinal direction of the aerosol generating device 100. The induction coil 124 can extend an appropriate length in the longitudinal direction. For example, the induction coil 124 can extend a length corresponding to the length of the receptor 122, or extend a length greater than the length of the receptor 122.

[0126] The induction coil 124 can be arranged at a position suitable for applying an alternating magnetic field to the receptor 122. For example, the induction coil 124 can be arranged at a position corresponding to the receptor 122. Through the size and arrangement of the induction coil 124 as described above, the efficiency of applying the alternating magnetic field of the induction coil 124 to the receptor 122 can be improved.

[0127] When the amplitude or frequency of the alternating magnetic field formed by the induction coil 124 changes, the degree to which the receptor 122 heats the aerosol generating article 15 may also change. The amplitude or frequency of the magnetic field formed by the induction coil 124 can be changed by the power applied to the induction coil 124, and the aerosol generating device 100 can control the heating of the aerosol generating article 15 by adjusting the power applied to the induction coil 124. For example, the aerosol generating device 100 can control the amplitude and frequency of the alternating current applied to the induction coil 124.

[0128] As an example, the induction coil 124 can be implemented by a solenoid. The induction coil 124 can be a solenoid wound around the inner surface of the outer housing of the aerosol generating device 100, and a receptor 122 and an aerosol generating article 15 can be disposed in the inner space of the solenoid. The material of the wire constituting the solenoid can be copper (Cu). However, it is not limited thereto, and any one of silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel (Ni) or an alloy including at least one of them can be the material of the wire constituting the solenoid.

[0129] The battery 115 can supply power to the aerosol generating device 100. The battery 115 can supply power to the induction coil 124. The battery 115 can include: a battery that supplies direct current to the aerosol generating device 100; and a conversion unit that converts the direct current supplied from the battery into alternating current supplied to the induction coil 124.

[0130] The battery 115 can supply direct current to the aerosol generating device 100. The battery 115 can be a lithium iron phosphate (LiFePO4) battery, but is not limited thereto. For example, the battery can be a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, a lithium polymer (LiPoly) battery, etc.

[0131] The conversion unit can include: a low-pass filter for filtering the direct current supplied from the battery and outputting alternating current supplied to the induction coil 124. The conversion unit can also include: an amplifier for amplifying the direct current supplied from the battery. For example, the conversion unit can be implemented by a low-pass filter constituting a load network of a class-D amplifier.

[0132] The control unit 110 can control the power supplied to the induction coil 124. The control unit 110 can control the battery 115 to adjust the power supplied to the induction coil 124. For example, the control unit 110 can perform control to maintain the temperature for heating the receptor 122 to the aerosol generating article 15 constant based on the temperature of the receptor 122.

[0133] Figure 8 and Figure 9 is a diagram showing an example of a cigarette.

[0134] Referring to Figure 8 , the cigarette 2 includes a tobacco rod 21 and a filter rod 22. Figure 8The filter rod 22 is shown as a single-segment structure, but is not limited thereto. In other words, the filter rod 22 may also be composed of multiple segments. For example, the filter rod 22 may include a segment for cooling the aerosol and a segment for filtering a specified component included in the aerosol. Additionally, according to requirements, the filter rod 22 may further include at least one segment that performs other functions.

[0135] The diameter of the cigarette 2 is in the range of 5 mm to 9 mm, and the length may be about 48 mm, but is not limited thereto. For example, the length of the tobacco rod 21 may be about 12 mm, the length of the first segment of the filter rod 22 may be about 10 mm, the length of the second segment of the filter rod 22 may be about 14 mm, and the length of the third segment of the filter rod 22 may be about 12 mm, but is not limited thereto.

[0136] The cigarette 2 may be wrapped by at least one wrapper 24. At least one hole for the inflow of external air or the outflow of internal gas may be formed on the wrapper 24. As an example, the cigarette 2 may be wrapped with one wrapper 24. As other examples, the cigarette 2 may also be wrapped with two or more wrappers 24 overlapped. For example, the tobacco rod 21 may be wrapped with the first wrapper 241, and the filter rod 22 may be wrapped with the wrappers 242, 243, 244. And the entire cigarette 2 may be wrapped again with a single wrapper 245. If the filter rod 22 is composed of multiple segments, each segment may be wrapped with the wrappers 242, 243, 244.

[0137] The first wrapper 241 and the second wrapper 242 may be made of ordinary filter roll paper. For example, the first wrapper 241 and the second wrapper 242 may be porous roll paper or non-porous roll paper. Additionally, the first wrapper 241 and the second wrapper 242 may be made of paper materials with oil resistance and / or aluminum composite packaging materials.

[0138] The third wrapper 243 may be made of hard roll paper. For example, the basis weight of the third wrapper 243 may be in the range of 88 g / m 2 ~96 g / m 2 and preferably in the range of 90 g / m 2 ~94 g / m 2 . Additionally, the thickness of the third wrapper 243 may be in the range of 120 um to 130 um, and preferably may be 125 um.

[0139] The fourth wrapper 244 may be made of oil-resistant hard roll paper. For example, the basis weight of the fourth wrapper 244 may be in the range of 88 g / m 2 ~96 g / m 2 and preferably in the range of 90 g / m 2 ~94 g / m 2within a range. Additionally, the thickness of the fourth wrapping paper 244 can be within the range of 120 um to 130 um, and preferably can be 125 um.

[0140] The fifth wrapping paper 245 can be made of sterilized paper (MFW). Among them, the sterilized paper (MFW) refers to specially manufactured paper, whose properties such as tensile strength, water resistance, and smoothness are superior to ordinary paper. For example, the basis weight of the fifth wrapping paper 245 can be within the range of 57 g / m 2 ~63 g / m 2 and preferably can be 60 g / m 2 . Additionally, the thickness of the fifth wrapping paper 245 can be within the range of 64 um to 70 um, and preferably can be 67 um.

[0141] The fifth wrapping paper 245 can be internally added with a predetermined substance. Among them, silicone plastics can be used as an example of the predetermined substance, but are not limited thereto. For example, silicone plastics have properties such as heat resistance with less change due to temperature, oxidation resistance without being oxidized, resistance to various drugs, water repellency for water, or electrical insulation. However, even if it is not silicone plastics, as long as it is a substance with the above properties, it can be coated (or laminated) on the fifth wrapping paper 245 without limitation.

[0142] The fifth wrapping paper 245 can prevent the phenomenon of the cigarette 2 burning. For example, when the tobacco rod 21 is heated by the heater 13, there is a possibility that the cigarette 2 burns. Specifically, when the temperature rises above the ignition point of any one of the substances included in the tobacco rod 21, the cigarette 2 may burn. In this case, since the fifth wrapping paper 245 contains non-combustible substances, the phenomenon of the cigarette 2 burning can be prevented.

[0143] Additionally, the fifth wrapping paper 245 can prevent the aerosol generating device 1 from being contaminated by the substances generated by the cigarette 2. Through the user's suction, liquid substances may be generated inside the cigarette 2. For example, the aerosol generated by the cigarette 2 is cooled by the external air, and liquid substances (such as moisture, etc.) can be generated. Through the packaging of the cigarette 2 with the fifth wrapping paper 245, the liquid substances generated inside the cigarette 2 can be prevented from leaking to the outside of the cigarette 2.

[0144] The tobacco rod 21 contains aerosol generating substances. For example, the aerosol generating substances can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but are not limited thereto. Additionally, the tobacco rod 21 can contain other additive substances such as flavoring agents, wetting agents, and / or organic acids. Additionally, flavoring liquids such as menthol or humectants can be added to the tobacco rod 21 in a manner of spraying onto the tobacco rod 21.

[0145] The tobacco rod 21 can be made in various ways. For example, the tobacco rod 21 can be made of a sheet or strand material. Additionally, the tobacco rod 21 can be made from tobacco leaves obtained by cutting tobacco sheets into fine pieces. Additionally, the tobacco rod 21 can be surrounded by a heat-conducting substance. For example, the heat-conducting substance can be a metal foil such as aluminum foil, but is not limited thereto. As an example, the heat-conducting substance surrounding the tobacco rod 21 can evenly disperse the heat transferred to the tobacco rod 21, thereby increasing the heat conduction rate applied to the tobacco rod, and thus improving the taste of the tobacco. Additionally, the heat-conducting substance surrounding the tobacco rod 21 can act as a receptor heated by an inductive heating type heater. At this time, although not shown, the tobacco rod 21 can include an additional receptor in addition to the heat-conducting substance surrounding the outside.

[0146] The filter rod 22 can be a cellulose acetate filter. Additionally, the shape of the filter rod 22 is not limited. For example, the filter rod 22 can be a cylindrical rod or a tubular rod with a cavity inside. Additionally, the filter rod 22 can be an embedded rod. If the filter rod 22 is composed of multiple segments, at least one of the multiple segments can be made into a different shape.

[0147] The first segment of the filter rod 22 can be a cellulose acetate filter. For example, the first segment can be a structure in the form of a tube with a cavity inside. When the heater 13 is inserted through the first segment, the phenomenon of the internal substance of the tobacco rod 21 being pushed backward can be prevented, and a cooling effect of the aerosol can also be generated. The hollow diameter of the cavity included in the first segment can adopt an appropriate diameter within the range of 2 mm to 4.5 mm, but is not limited thereto.

[0148] The length of the first segment can adopt an appropriate length within the range of 4 mm to 30 mm, but is not limited thereto. Preferably, the length of the first segment can be 10 mm, but is not limited thereto.

[0149] When manufacturing the first segment, by adjusting the content of the plasticizer, the hardness of the first segment can be adjusted. It can be made by inserting components such as membranes and tubes made of the same or different materials inside (for example, in the cavity).

[0150] The second segment of the filter rod 22 cools the aerosol generated by heating the tobacco rod 21 by the heater 13. Therefore, the user can inhale the aerosol cooled to an appropriate temperature.

[0151] The length or diameter of the second segment can be determined differently according to the form of the cigarette 2. For example, the length of the second segment can be appropriately adopted within the range of 7 mm to 20 mm. Preferably, the length of the second segment can be about 14 mm, but is not limited thereto.

[0152] The second section can be made by weaving polymer fibers. In this case, a perfume solution can also be coated on the fibers made of the polymer. Additionally, extra fibers coated with the perfume solution can be woven together with the fibers made of the polymer to make the second section. Additionally, the second section can be formed by winding a polymer sheet.

[0153] For example, the polymer can be made of a material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil.

[0154] As the second section is formed by woven polymer fibers or a wound polymer sheet, the second section can include one or more longitudinally extending channels. Herein, the channel refers to a passage for gas (e.g., air or aerosol) to pass through.

[0155] For example, the second section made of a wound polymer sheet can be made of a material having a thickness between about 5 μm and about 300 μm (e.g., between about 10 μm and about 250 μm). Additionally, the total surface area of the second section can be between about 300 mm 2 / mm and about 1000 mm 2 / mm. Additionally, the aerosol cooling element can be made of a material having a specific surface area between about 10 mm 2 / mg and about 100 mm 2 / mg.

[0156] Additionally, a thread containing a volatile fragrance component can be included in the second section. The volatile fragrance component can be menthol, but is not limited thereto. For example, the thread can be filled with a sufficient amount of menthol to provide more than 1.5 mg of menthol to the second section.

[0157] The third section of the filter rod 22 can be a cellulose acetate filter. The length of the third section can be appropriately adopted within the range of 4 mm to 20 mm. For example, the length of the third section can be about 12 mm, but is not limited thereto.

[0158] During the production of the third section, it can also be produced in such a way that a perfume solution is sprayed onto the third section to generate a fragrance. Additionally, extra fibers coated with the perfume solution can be inserted into the interior of the third section. The aerosol generated by the tobacco rod 21 is cooled when passing through the second section of the filter rod 22, and the cooled aerosol is transmitted to the user through the third section. Therefore, when a fragrance element is added to the third section, an effect of continuously increasing the fragrance transmitted to the user can be produced.

[0159] In addition, the filter rod 22 may include at least one capsule 23. Among them, the capsule 23 may perform the function of generating fragrance and may also perform the function of generating aerosol. For example, the capsule 23 may be a structure in which a liquid containing fragrance is wrapped with a film. The capsule 23 may have a spherical or cylindrical shape, but is not limited thereto.

[0160] Referring Figure 9 , the cigarette 3 may further include a front-end plug 33. In the tobacco rod 31, the front-end plug 33 may be located on the side opposite to the filter rod 32. The front-end plug 33 can prevent the tobacco rod 31 from detaching to the outside and can prevent the liquefied aerosol from flowing into the aerosol generating device during smoking ( Figures 1 to 3 1).

[0161] The filter rod 32 may include a first section 321 and a second section 322. Among them, the first section 321 may correspond to the first section of the Figure 8 filter rod 22, and the second section 322 may correspond to the third section of the Figure 8 filter rod 22.

[0162] The diameter and overall length of the cigarette 3 may correspond to the diameter and overall length of the Figure 8 cigarette 2. For example, the length of the front-end plug 33 may be about 7 mm, the length of the tobacco rod 31 may be about 15 mm, the length of the first section 321 may be about 12 mm, and the length of the second section 322 may be about 14 mm, but is not limited thereto.

[0163] The cigarette 3 may be packaged with at least one wrapper 35. At least one hole for external air to flow in or internal gas to flow out may be formed on the wrapper 35. For example, the front-end plug 33 may be packaged with the first wrapper 351, the tobacco rod 31 may be packaged with the second wrapper 352, the first section 321 may be packaged with the third wrapper 353, and the second section 322 may be packaged with the fourth wrapper 354. And the entire cigarette 3 may be packaged again with the fifth wrapper 355.

[0164] In addition, at least one perforation 36 may be formed on the fifth wrapper 355. For example, the perforation 36 may be formed in the area surrounding the tobacco rod 31, but is not limited thereto. The perforation 36 may perform the function of transferring the heat generated by the Figure 2 and Figure 3 heater 13 shown in into the interior of the tobacco rod 31.

[0165] In addition, the second section 322 may include at least one capsule 34. Among them, the capsule 34 can perform the function of generating fragrance and can also perform the function of generating aerosol. For example, the capsule 34 can be a structure in which a liquid containing fragrance is wrapped with a film. The capsule 34 can have a spherical or cylindrical shape, but is not limited thereto.

[0166] The first wrapper 351 can be made by combining a metal foil such as aluminum foil with a common filter paper roll. For example, the overall thickness of the first wrapper 351 can be in the range of 45um to 55um, and preferably can be 50.3um. In addition, the thickness of the metal foil of the first wrapper 351 can be in the range of 6um to 7um, and preferably can be 6.3um. In addition, the basis weight of the first wrapper 351 can be in the range of 50g / m 2 ~55g / m 2 and preferably can be 53g / m 2 .

[0167] The second wrapper 352 and the third wrapper 353 can be made of a common filter paper roll. For example, the second wrapper 352 and the third wrapper 353 can be porous paper rolls or non-porous paper rolls.

[0168] For example, the porosity of the second wrapper 352 can be 35000CU, but is not limited thereto. In addition, the second wrapper 352 can be in the range of 70um to 80um, and preferably can be 78um. In addition, the basis weight of the second wrapper 352 can be in the range of 20g / m 2 ~25g / m 2 and preferably can be 23.5g / m 2 .

[0169] For example, the porosity of the third wrapper 353 can be 24000CU, but is not limited thereto. In addition, the third wrapper 353 can be in the range of 60um to 70um, and preferably can be 68um. In addition, the basis weight of the third wrapper 353 can be in the range of 20g / m 2 ~25g / m 2 and preferably can be 21g / m 2 .

[0170] The fourth wrapper 354 can be made of a polylactic acid (PLA) composite paper. Among them, the PLA composite paper refers to a paper including a triple structure of a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth wrapper 354 can be in the range of 100um to 120um, and preferably can be 110um. In addition, the basis weight of the fourth wrapper 354 can be in the range of 80g / m 2 ~100g / m2 Within the range, it is preferably 88 g / m 2 .

[0171] The fifth wrapper 355 can be made of sterilized paper (MFW). Among them, the sterilized paper (MFW) refers to specially manufactured paper, whose properties such as tensile strength, water resistance, and smoothness are superior to ordinary paper. For example, the basis weight of the fifth wrapper 355 can be included in the range of 57 g / m 2 ~63 g / m 2 Within the range, it is preferably 60 g / m 2 . In addition, the thickness of the fifth wrapper 355 can be included in the range of 64 um to 70 um, and preferably can be 67 um.

[0172] The fifth wrapper 355 can be internally added with a predetermined substance. Among them, silicone plastics can be used as an example of the predetermined substance, but not limited thereto. For example, silicone plastics have properties such as heat resistance with less change due to temperature, oxidation resistance that is not oxidized, resistance to various drugs, water repellency for water, or electrical insulation. However, even if it is not silicone plastics, as long as it is a substance with the above properties, it can be coated (or laminated) on the fifth wrapper 355 without limitation.

[0173] The front plug 33 can be made of cellulose acetate. As an example, the front plug 33 can be manufactured by adding a plasticizer (for example, triacetin) to a cellulose acetate tow. The mono denier of the filaments constituting the cellulose acetate tow can be included in the range of 1.0 to 10.0, and preferably can be included in the range of 4.0 to 6.0. More preferably, the mono denier of the filaments of the front plug 33 can be 5.0. In addition, the cross-section of the filaments constituting the front plug 33 can be Y-shaped. The total denier of the front plug 33 can be included in the range of 20000 to 30000, and preferably can be included in the range of 25000 to 30000. More preferably, the total denier of the front plug 33 can be 28000.

[0174] In addition, according to requirements, the front plug 33 can include at least one channel, and the cross-sectional shape of the channel can be made differently.

[0175] Referring to Figure 8 , the tobacco rod 31 can correspond to the above tobacco rod 21. Therefore, the specific description of the tobacco rod 31 will be omitted below.

[0176] The first section 321 can be made of cellulose acetate. For example, the first section can be a tubular structure with a cavity inside. The first section 321 can be made by adding a plasticizer (e.g., triacetin) to a cellulose acetate tow. For example, the denier per filament and the total denier of the first section 321 can be the same as those of the front-end plug 33.

[0177] The second section 322 can be made of cellulose acetate. The denier per filament of the filaments constituting the second section 322 can be in the range of 1.0 to 10.0, preferably in the range of 8.0 to 10.0. More preferably, the denier per filament of the filaments of the second section 322 can be 9.0. In addition, the cross-section of the filaments of the second section 322 can be Y-shaped. The total denier of the second section 322 can be in the range of 20,000 to 30,000, preferably 25,000.

[0178] Figure 10 It is a block diagram of an aerosol generating device according to other embodiments.

[0179] The aerosol generating device 1000 can include a control unit 1010, a sensing unit 1020, an output unit 1030, a battery 1040, a heater 1050, a user input unit 1060, a memory 1070, and a communication unit 1080. However, the internal structure of the aerosol generating device 1000 is not limited to Figure 10 as shown. That is, according to the design of the aerosol generating device 1000, those of ordinary skill in the art can understand that Figure 10 some of the components shown can be omitted, or other components can be further added.

[0180] The sensing unit 1020 can sense the state of the aerosol generating device 1000 or the state around the aerosol generating device 1000, and transmit the sensed information to the control unit 1010. The control unit 1010 can control the aerosol generating device based on the sensed information to perform various functions, such as controlling the operation of the heater 1050, restricting smoking, judging whether an aerosol generating article (e.g., cigarette, cartridge, etc.) is inserted, and displaying an alarm.

[0181] The sensing unit 1020 can include at least one of a temperature sensor 1022, an insertion sensing sensor 1024, a puff sensor 1026, and a humidity sensing sensor 1028, but is not limited thereto.

[0182] The temperature sensor 1022 can sense the temperature at which the heater 1050 (or the aerosol - generating substance) is heated. The aerosol - generating device 1000 may include an additional temperature sensor for sensing the temperature of the heater 1050, or the heater 1050 itself may perform the function of a temperature sensor. Additionally, the temperature sensor 1022 may also be arranged around the battery 1040 to monitor the temperature of the battery 1040.

[0183] The insertion - sensing sensor 1024 can sense the insertion and / or removal of the aerosol - generating article. For example, the insertion - sensing sensor 1024 may include at least one of a thin - film sensor, a pressure sensor, an optical sensor, a resistance sensor, a capacitance sensor, an inductive sensor, and an infrared sensor, and can sense a signal change according to the insertion and / or removal of the aerosol - generating article.

[0184] The puff sensor 1026 can sense a user's puff based on various physical changes in the air - flow path or air - flow channel. For example, the puff sensor 1026 can sense a user's puff based on any one of a temperature change, a flow change, a voltage change, and a pressure change.

[0185] The humidity - sensing sensor 1028 can sense the amount of moisture contained in the cigarette. For example, the humidity - sensing sensor 1028 may be at least one of a resistive sensor, a capacitive sensor, and an optical sensor. However, this is only an example, and the humidity - sensing sensor 1028 is not limited thereto.

[0186] In addition to the above - mentioned sensors (1022 to 1028), the sensing unit 1020 may further include at least one of a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (such as GPS), a proximity sensor, and an RGB sensor (illuminance sensor). The functions of each sensor can be intuitively inferred by those skilled in the art from their names, so specific descriptions will be omitted.

[0187] The output unit 1030 can output the status information of the aerosol - generating device 1000 and provide it to the user. The output unit 1030 may include at least one of a display unit 1032, a haptic unit 1034, and an audio output unit 1036, but is not limited thereto. When the display unit 1032 forms a stacked structure with a touchpad and constitutes a touch screen, the display unit 1032 can be used not only as an output device but also as an input device.

[0188] The display unit 1032 can visually provide information of the aerosol generating device 1000 to the user. For example, the information of the aerosol generating device 1000 can refer to various information such as the charge / discharge state of the battery 1040 of the aerosol generating device 1000, the preheating state of the heater 1050, the insertion / removal state of the aerosol generating article, or the state where the use of the aerosol generating device 1000 is restricted (e.g., an abnormal article is sensed), and the display unit 1032 can output the information to the outside. The display unit 1032 can be, for example, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. Additionally, the display unit 1032 can also be in the form of an LED light emitting element.

[0189] The tactile unit 1034 converts an electrical signal into a mechanical stimulus or an electrical stimulus, thereby being able to provide information of the aerosol generating device 1000 to the user in a tactile manner. For example, the tactile unit 1034 can include a motor, a piezoelectric element, or an electrical stimulation device.

[0190] The audio output unit 1036 can auditorily provide information of the aerosol generating device 1000 to the user. For example, the audio output unit 1036 can convert an electrical signal into an audio signal and output it to the outside.

[0191] The battery 1040 can supply the power required for the aerosol generating device 1000 to operate. The battery 1040 can supply power to heat the heater 1050. Additionally, the battery 1040 can supply the power required for other structures (e.g., the sensing unit 1020, the output unit 1030, the user input unit 1060, the memory 1070, and the communication unit 1080) provided in the aerosol generating device 1000 to operate. The battery 1040 can be a rechargeable battery or a disposable battery. For example, the battery 1040 can be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0192] The heater 1050 can receive power from the battery 1040 to heat the aerosol generating substance. Figure 10 Although not shown in the figure, the aerosol generating device 1000 can further include a power conversion circuit (e.g., a DC / DC converter) to supply power to the heater 1050 by converting the power of the battery 1040. Additionally, when the aerosol generating device 1000 generates aerosol in an inductive heating manner, the aerosol generating device 1000 can further include a DC / AC converter that converts the DC power of the battery 1040 into AC power.

[0193] The control unit 1010, the sensing unit 1020, the output unit 1030, the user input unit 1060, the memory 1070, and the communication unit 1080 can receive power from the battery 1040 to perform functions. Figure 10Although not shown in the figure, it may further include a power conversion circuit that converts the power of the conversion battery 1040 to supply power to each component, such as a low dropout (LDO) circuit or a voltage regulator circuit.

[0194] In one embodiment, the heater 1050 may be formed of any suitable resistive material. For example, suitable resistive materials may be metals or metal alloys, including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc., but are not limited thereto. Additionally, the heater 1050 may be implemented by a metal heating plate configured with a metal heating wire, a conductive track, a ceramic heating element, etc., but is not limited thereto.

[0195] In other embodiments, the heater 1050 may be an induction heating type heater. For example, the heater 1050 may include a susceptor that generates heat by a magnetic field applied by a coil and heats the aerosol generating material.

[0196] In one embodiment, the heater 1050 may include multiple heaters. For example, the heater 1050 may include a first heater for heating a cigarette and a second heater for heating a liquid substance.

[0197] The user input unit 1060 may receive information input by the user or output information to the user. For example, the user input unit 1060 may include a keypad, a dome switch, a touchpad (capacitive touch method, piezoresistive resistive film method, infrared induction method, surface acoustic wave conduction method, integral tension measurement method, piezoelectric effect method, etc.), a roller, a toggle switch, etc., but is not limited thereto. Additionally, Figure 10 Although not shown in the figure, the aerosol generating device 1000 may further include a connection interface such as a universal serial bus (USB) interface, etc., and be connected to other external devices through a connection interface such as a USB interface, etc. to send and receive information or charge the battery 1040.

[0198] The memory 1070, as the hardware for storing various data (such as temperature curves) processed within the aerosol generating device 1000, can store the data processed in the control unit 1010 and the data to be processed. The memory 1070 may include at least one type of storage medium such as a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (such as an SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory 1070 can store data such as the operating time of the aerosol generating device 1000, the maximum number of puffs, the current number of puffs, at least one temperature curve, and the smoking pattern of the user.

[0199] The communication unit 1080 may include at least one component for communicating with other electronic devices. For example, the communication unit 1080 may include a short-range communication unit 1082 and a wireless communication unit 1084.

[0200] The short-range wireless communication unit 1082 may include a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a Near Field Communication unit, a Wi-Fi communication unit, a Zigbee communication unit, an infrared Data Association (IrDA) communication unit, a Wi-Fi Direct (WFD) communication unit, an ultra wideband (UWB) communication unit, an Ant+ communication unit, etc., but is not limited thereto.

[0201] The wireless communication unit 1084 may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., local area network LAN or wide area network WAN) communication unit, etc. The wireless communication unit 1084 may also use user information (e.g., International Mobile Subscriber Identity (IMSI)) to confirm and authenticate the aerosol generating device 1000 in the communication network.

[0202] The control unit 1010 may control the overall operation of the aerosol generating device 1000. In one embodiment, the control unit 1010 may include at least one processor. The processor may be implemented by an array of multiple logic gates, or may be implemented by a combination of a general microprocessor and a memory storing a program that can run on the microprocessor. Additionally, as long as those of ordinary skill in the technical field to which this embodiment belongs can understand, it may also be implemented by other forms of hardware.

[0203] Those of ordinary skill in the technical field to which this embodiment belongs can understand that it can be embodied in a modified form without departing from the essential characteristics described above. Therefore, the embodiments of the present disclosure should be considered merely illustrative examples and should not be construed as limiting the scope of the present disclosure. The scope of the present disclosure is described in the claims, rather than in the foregoing description, and any modifications, substitutions, and improvements to the embodiments of the present disclosure should be construed as being included in the present disclosure.

Claims

1. An aerosol generating device, characterized in that, Comprising: A receiving space for inserting an aerosol-generating article; A heater for heating the aerosol-generating article; An insertion sensing sensor for sensing whether the aerosol-generating article is inserted into the receiving space; A memory including a look-up table, in which each aerosol-generating article is matched with a preset value, and A control unit; During the heating operation of the heater, when it is sensed by the insertion sensing sensor that the aerosol-generating article in the state of being inserted into the receiving space moves out of the receiving space, the control unit pauses the heating operation of the heater; Within a preset grace period starting from the time point when the heating operation is paused, the control unit determines whether to resume the heating operation of the heater according to whether the aerosol-generating article is re-inserted into the receiving space.

2. The aerosol-generating device according to claim 1, wherein When the change amount of the sensed value sensed by the insertion sensing sensor is different from the preset value, the control unit determines that the aerosol-generating article has moved.

3. The aerosol-generating device according to claim 1, wherein The movement includes: A case where the front end of the aerosol-generating article is separated from the bottom surface of the receiving space by a preset distance, or A case where the front end of the aerosol-generating article opposite to the bottom surface of the receiving space completely exits the receiving space.

4. The aerosol-generating device according to claim 1, wherein When it is determined that the aerosol-generating article is re-inserted into the receiving space within the preset grace period, the control unit resumes the heating operation of the heater; When it is determined that the aerosol-generating article is not re-inserted into the receiving space within the preset grace period, the control unit stops the heating operation of the heater.

5. The aerosol-generating device according to claim 1, wherein The insertion sensing sensor includes at least one of an inductive sensor for sensing the inductance change of the receiving space, a temperature sensor for sensing the temperature of the heater, and a capacitance sensor for sensing the capacitance change of the receiving space.

6. The aerosol-generating device according to claim 5, wherein Within the grace period, the control unit switches the state of the inductive sensor to the active state at a constant period; The control unit senses the inductance change through the inductive sensor switched to the active state.

7. The aerosol-generating device according to claim 6, wherein When the aerosol-generating article is in the state of being inserted into the receiving space, the control unit senses the first inductance change of the receiving space according to the constant period; When the magnitude of the sensed first inductance change is equal to or greater than a first critical value, the control unit determines that the aerosol-generating article has moved out of the receiving space.

8. The aerosol-generating device according to claim 6, wherein When the aerosol-generating article moves from the accommodation space, the control unit senses a second inductance change of the accommodation space through the inductive sensor at a constant period within a specified time. When the magnitude of the sensed second inductance change is equal to or greater than a second critical value, the control unit determines that the aerosol-generating article has been re-inserted.

9. The aerosol-generating device according to claim 1, wherein: The aerosol-generating article includes a heat-conductive material, and the heat-conductive material contains at least one of aluminum, nickel, and iron.

10. A method of operating an aerosol generating device, characterized in that, Comprising: During the heating operation of the heater, a step of sensing whether the aerosol-generating article in a state of being inserted into the accommodation space moves from the accommodation space through an insertion sensing sensor. When the aerosol-generating article moves from the accommodation space, a step of suspending the heating operation of the heater, and A step of determining whether to resume the heating operation of the heater according to whether the aerosol-generating article is re-inserted into the accommodation space within a preset grace period starting from the time point when the heating operation is paused.

11. The method of operating an aerosol-generating device according to claim 10, wherein: In the step of sensing whether the aerosol-generating article moves from the accommodation space, based on a look-up table in which a preset value is matched to each aerosol-generating article, when the change amount of the sensed value sensed by the insertion sensing sensor is different from the preset value, it is determined that the aerosol-generating article has moved.

12. The method of operating an aerosol-generating device according to claim 10, wherein: The movement includes: A case where the front end of the aerosol-generating article is separated from the bottom surface of the accommodation space by a preset distance, or A case where the front end of the aerosol-generating article opposite to the bottom surface of the accommodation space completely exits the accommodation space.

13. The method of operating an aerosol-generating device according to claim 10, wherein: The insertion sensing sensor includes at least one of an inductive sensor for sensing an inductance change of the accommodation space, a temperature sensor for sensing the temperature of the heater, and a capacitance sensor for sensing a capacitance change of the accommodation space.

14. The method of operating an aerosol-generating device according to claim 10, wherein: In the step of determining whether to resume the heating operation of the heater, When it is determined that the aerosol-generating article is re-inserted into the accommodation space within the preset grace period, the heating operation of the heater is resumed. When it is determined that the aerosol-generating article is not re-inserted into the accommodation space within the preset grace period, the heating operation of the heater is stopped.

15. The method of operating an aerosol-generating device according to claim 10, wherein: The aerosol-generating article includes a heat-conductive material, and the heat-conductive material contains at least one of aluminum, nickel, and iron.

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