Improved aerosol-generating device and combustion-type cigarette having dual filter structure

Abstract

Embodiments relate to an improved aerosol-generating device and a combustion-type cigarette having a dual filter structure and, more specifically, to an improved aerosol generating device for generating aerosol from various types of cigarettes accommodated therein, and to a combustion-type cigarette in which filters are disposed at upper and lower ends of the cigarette, respectively, enabling usage in both directions. The aerosol generation device according to an embodiment comprises: a main body to and from which a liquid cartridge is attached and detached; a liquid cartridge which is attached to or detached from the main body and generates aerosol through heating; a cigarette accommodation part which is formed below the liquid cartridge of the main body, has an opening formed at the lower end thereof, and accommodates a combustion-type cigarette; and a cigarette-heating part which generates aerosol by heating the accommodated combustion-type cigarette, wherein the cigarette accommodation part is in communication with the liquid cartridge, and thus the aerosol generated by heating the combustion-type cigarette and the aerosol generated by heating the liquid cartridge join in an inhalation flow path and are inhaled by a user.

Description

Combustion cigarette with improved aerosol generating device and dual filter structure

[0001] The embodiments relate to an improved aerosol generating device and a combustible cigarette having a dual filter structure, and more particularly, to an improved aerosol generating device for accommodating various types of cigarettes to generate an aerosol, and a combustible cigarette having filters respectively arranged at the upper and lower ends of the cigarette to enable use in both directions.

[0002] Recently, there has been a growing demand for alternative methods that overcome the shortcomings of conventional cigarettes (FMCs, Factory Manufactured Cigarettes), also known as combustible cigarettes. For example, rather than combusting conventional cigarettes (FMCs, hereinafter referred to as combustible cigarettes) to produce aerosol, there is a growing demand for methods that produce aerosol by electrically heating the aerosol-generating material within the cigarette by manufacturing a special type of cigarette.

[0003] These novel cigarette-shaped articles may be referred to as heated smoking articles. Heated smoking articles are inserted into a battery-powered aerosol-generating device and heated by a heater, thereby generating an aerosol from the included aerosol medium or forming substrate, which can be inhaled by the user.

[0004] Heated smoking devices (hereinafter referred to as heated cigarettes) require a different composition from combustible cigarettes due to their different aerosol generation mechanisms. A particularly common component used in heated cigarettes is what's known as reconstituted tobacco. Reconstituted tobacco is made by grinding tobacco leaves into fine particles, then mixing them with VG (vegetable glycerin), a coagulant, and moisture. This is then formed into wide, thin sheets in a process similar to making Korean paper (hanji), and the moisture is then removed. After rolling and cutting to shape the tobacco, it is wrapped in cigarette paper along with a filter layer, completing the reconstituted tobacco.

[0005] On the other hand, combustion cigarettes are different from heated cigarettes in terms of manufacturing method, raw materials, and composition in that they can be manufactured by post-fermenting tobacco leaves, chopping them, mixing in supplementary raw materials or additives, and wrapping them with cigarette paper together with a filter layer.

[0006] Heated cigarettes can smoothly generate aerosols through electrical heating, as the VG (vegetable glycerin) and PG (propylene glycol) they contain are converted into aerosols by heating, along with other substances. However, combustible cigarettes cannot achieve this effect, so relying solely on heating may result in insufficient aerosol generation.

[0007] The ultimate goal of heated cigarettes is to replicate the flavor, aroma, and inhalation sensation of combustible cigarettes, and extensive research has been conducted to achieve this goal. However, there are limitations to accurately reproducing the flavor, aroma, and inhalation sensation of combustible cigarettes made from processed tobacco leaves. Furthermore, the manufacturing of heated cigarettes requires separate manufacturing facilities and additional processes, making it uneconomical. Therefore, utilizing existing combustible cigarette manufacturing facilities is necessary.

[0008] The embodiments aim to provide an aerosol generating device having improved compatibility, which can receive any type of cigarette and generate an aerosol, regardless of whether the cigarette has a filter or not, is heated or combusted.

[0009] In addition, the embodiments aim to provide an aerosol generating device that can solve the problem of little smoke being generated despite smooth nicotine generation when electronically heating a combustion-type cigarette, by using a hybrid method that combines a liquid cartridge.

[0010] In addition, the embodiments aim to provide a hybrid aerosol generating device capable of increasing the visibility of smoke by separating the airflow path of cigarette-derived aerosol and the airflow path of liquid cartridge-derived aerosol.

[0011] In addition, the embodiments aim to provide an aerosol generating device capable of safely and easily cutting the filter portion of a cigarette and easily separating and removing the cut cigarette from the device.

[0012] Furthermore, the embodiments aim to provide an aerosol generating device that allows a user to control the consumption of a cigarette according to his / her preference through partial heating and can satisfy various user needs.

[0013] In addition, the embodiments aim to provide a combustible cigarette having filters at the top and bottom, which can be used in the aerosol generating device, and which can be used twice in both directions.

[0014] The aerosol generating device of the embodiments generates an aerosol by applying energy to a contained combustible cigarette, and has an airflow from the bottom to the top, wherein a case, a battery, a control unit, and a terminal for applying power are installed, and the device includes a main body to which a liquid cartridge is detachably attached, a liquid cartridge detachably attached to the main body and which generates an aerosol through heating, a cigarette receiving portion formed at a lower side of the liquid cartridge of the main body and having an opening formed at the bottom for receiving the combustible cigarette, a cigarette heating portion that heats the contained combustible cigarette to generate an aerosol, and an inhalation path for discharging the aerosol that opens toward the top of the case, wherein the cigarette receiving portion communicates with the liquid cartridge, and thus, an aerosol generated by heating the combustible cigarette and an aerosol generated by heating the liquid cartridge can be joined together in the inhalation path and inhaled by a user.

[0015] Additionally, in some embodiments, the aerosol generating device may further include a cover structure formed at the bottom of the case and opening or closing the space below the cigarette receiving portion to the outside.

[0016] Additionally, in some embodiments, the aerosol generating device has a cover structure that is a sliding or hinged door, which, when opened, can expose a predetermined length of the lower end of the contained combustible cigarette to the outside.

[0017] Additionally, in some embodiments, the aerosol generating device comprises a cover structure which is a module that is coupled or separated again toward the lower end of the cigarette receiving portion, and by separation, a predetermined length of the lower end of the received combustible cigarette can be exposed to the outside.

[0018] In addition, in some embodiments, the aerosol generating device includes a cover structure as a module that is coupled or separated toward the bottom of the cigarette receiving portion, and includes a holder that secures the lower end of the received combustible cigarette, and when the cover structure is separated, the combustible cigarette secured to the holder can be separated from the aerosol generating device together.

[0019] Additionally, in some embodiments, the aerosol generating device may be configured such that the inhalation path has a mouthpiece that is coupled and detached at its end for contact with the user's mouth.

[0020] Also in some embodiments, the aerosol generating device comprises a plurality of cigarette heaters, the cigarette heaters being arranged in the direction of the airflow to heat different portions of a received combustible cigarette, and individually controllable by the control unit, wherein the control unit can operate only one of the plurality of cigarette heaters to perform one heating cycle.

[0021] In addition, in some embodiments, the aerosol generating device further includes an input unit for detecting a user's input, and the control unit can perform one heating cycle by operating only one cigarette heater selected by the user input detected by the input unit among a plurality of cigarette heaters.

[0022] Additionally, in some embodiments, the aerosol generating device may be configured such that the control unit sequentially operates a plurality of cigarette heaters, one per heating cycle, selected by user input detected by the input unit, to perform multiple heating cycles in succession.

[0023] In addition, in some embodiments, the aerosol generating device includes a control unit including a memory unit that memorizes a cigarette heater that has performed a heating cycle among a plurality of cigarette heaters included in the cigarette heating unit, and the control unit can select a cigarette heater that will perform the next heating cycle based on the contents memorized in the memory unit.

[0024] In addition, in some embodiments, the aerosol generating device further includes a replacement sensor that detects opening or separation or closing or joining of the cover structure, and when opening or separation or closing or joining of the cover structure is detected through the replacement sensor, the memory of the memory unit can be initialized.

[0025] Additionally, in some embodiments, the aerosol generating device may be configured such that the cigarette heating element heats only an area of ​​50% to 60% of the upper portion of the tobacco portion of the received combustible cigarette.

[0026] In addition, in some embodiments, the aerosol generating device further includes a heating sensor that detects a heating trace formed on a portion of a received combustible cigarette heated by a cigarette heating element, and the control unit can determine a cigarette heater to perform the next heating cycle based on the detection contents of the heating sensor.

[0027] Additionally, in some embodiments, the aerosol generating device further includes a heating sensor that detects a heating trace formed on a portion of a received combustible cigarette heated by a cigarette heating element, and the control unit can transmit a notification to a user when the heating sensor detects a heating trace.

[0028] Additionally, in some embodiments, the aerosol generating device may have a cover structure or case that can be magnetically attracted when closed or engaged, including a magnetic piece or iron piece.

[0029] Additionally, in some embodiments, the aerosol generating device may include a cover structure that can be coupled or re-coupled toward the bottom of the cigarette receiving portion, and further, the cover structure may include a second cigarette receiving portion that receives at least a filter portion of a received combustible cigarette and a sliding blade for cutting the received combustible cigarette transversely.

[0030] Additionally, in some embodiments, the aerosol generating device may include a cover structure including a housing in which a blade holder having the blade fixed therein is inserted and slides.

[0031] Additionally, in some embodiments, the aerosol generating device may have a cover structure having a lock mode in which the cutting operation is prohibited and an unlock mode in which the cutting operation is possible, depending on the position of the unlock button.

[0032] In addition, in some embodiments, the aerosol generating device may have a lock release button connected to the middle of one side of a lever-shaped lock rod, a tip of one side of the lock rod may be mounted on a damper, and a tip of the other side may be installed on the side of the blade holder.

[0033] In addition, in some embodiments, the aerosol generating device may have the other side of the locking rod caught on a holder stopper in the shape of a catch formed on the blade holder, and the damper may have a shape of an inclined surface and be supported by a spring that pushes the damper.

[0034] Additionally, in some embodiments, the aerosol generating device may have a blade that protrudes into a centrally pointed tip.

[0035] In addition, in some embodiments, the aerosol generating device has a cigarette receiving portion having an outlet communicating with a liquid cartridge, an inhalation path is formed in the liquid cartridge, and the liquid cartridge has a liquid storage portion storing liquid, a heater located below the liquid storage portion to receive and vaporize liquid, a vaporization space in which at least one surface of the heater is exposed and the liquid is aerosolized, and an outlet for discharging aerosol from the vaporization space to the inhalation path, and the liquid cartridge has a connecting path connecting the outlet of the cigarette receiving portion and the inhalation path, and the connecting path can be separated from the vaporization space.

[0036] Additionally, in some embodiments, the aerosol generating device may have an outlet of the vaporization space whose cross-sectional area gradually decreases toward the intake path.

[0037] Additionally, in some embodiments, the aerosol generating device may have a lower portion of the inlet passage extending below the outlet of the vaporization space and the connecting passage.

[0038] Additionally, in some embodiments, the aerosol generating device may have an outlet of the vaporization space having a higher suction pressure than the connecting passage.

[0039] Additionally, in some embodiments, the aerosol generating device, the liquid cartridge, may be provided with an outside air introduction hole for introducing outside air into the vaporization space.

[0040] In addition, the combustion-type cigarette of the embodiments may include a tobacco part extending in a vertical direction, a first filter part stacked on one end of the tobacco part, a second filter part stacked on the other end of the tobacco part, and a cigarette paper for wrapping the first filter part, the tobacco part, and the second filter part stacked in the vertical direction to form a cigarette.

[0041] Additionally, in some embodiments, the combustion-type cigarette may have a vertical extension length of the first filter portion and the second filter portion of 0.1 mm to 10 mm.

[0042] Additionally, in some embodiments, the combustion-type cigarette may have tube sections stacked between the first filter section and the tobacco section and between the second filter section and the tobacco section for cooling the airflow.

[0043] According to embodiments, the user experience is enhanced by allowing the user to insert and use their preferred cigarette into the aerosol generating device regardless of compatibility.

[0044] In addition, according to the embodiments, a heated smoking article as well as a combustion cigarette can be used in an aerosol generating device, so that the taste, aroma, and inhalation sensation of a combustion cigarette can be provided to the user as is, and the production equipment and process of a conventional combustion cigarette can be used as is, so that the smoking article can be manufactured economically.

[0045] In addition, according to embodiments, a hybrid aerosol generating device including a liquid cartridge can provide a rich smoke sensation to a user by supplementing the insufficient smoke generation of a combustion-type cigarette.

[0046] Additionally, according to embodiments, a cigarette ejection mechanism allows a user to easily remove and replace a used cigarette from the device.

[0047] Additionally, according to embodiments, a user can directly select a smoking profile such as single smoking and continuous smoking according to partial heating, thereby providing a customized smoking experience.

[0048] In addition, according to embodiments, a combustion cigarette that can inhale aerosol in any direction when inserted into an aerosol generating device and can be used twice in both directions can be provided.

[0049] Additionally, according to the embodiments, due to the bidirectional use of the combustion cigarette, the upper and lower ends of the combustion cigarette's tobacco can be heated evenly, enabling efficient use of the cigarette.

[0050] Additionally, according to embodiments, by limiting the length of the filter of the cigarette, a combustion-type cigarette can be provided that can smoothly inhale the aerosol despite electronic heating.

[0051] Figure 1 is a cross-sectional view showing an exemplary combustion cigarette (1000) that can be accommodated in an aerosol generating device of one embodiment of the present invention;

[0052] Figures 2 to 11 are schematic front views and cross-sectional views of aerosol generating devices of various embodiments of the present invention.

[0053] Fig. 12 is a block diagram showing control-related elements of an aerosol generating device of the same embodiment as Fig. 11;

[0054] Figure 13 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention;

[0055] Fig. 14 is a block diagram showing control-related elements of an aerosol generating device of the same embodiment as Fig. 13.

[0056] Figure 15 is a front view showing an exemplary heating trace that may be formed on a heated portion of a combustion-type cigarette (1010) that does not include a filter portion;

[0057] Figures 16 and 17 are schematic cross-sectional views showing combustion-type cigarettes (1100, 1100a) of various embodiments of the present invention.

[0058] Figures 18 to 21 are schematic front views and cross-sectional views of an aerosol generating device of another various embodiment of the present invention.

[0059] Fig. 22 is a block diagram showing control-related elements of an aerosol generating device of the same embodiment as Fig. 21.

[0060] Figure 23 is a front view showing exemplary heating marks (k1, k2) that may be formed on a heated portion of a combustion-type cigarette (1100).

[0061] Fig. 24 is a cross-sectional view schematically showing an aerosol generating device according to another embodiment of the present invention;

[0062] Figure 25 is a perspective view showing a cover structure (50) of an aerosol generating device according to another embodiment of the present invention.

[0063] Fig. 26 is a cross-sectional view along the PP' cutting line of Fig. 25.

[0064] Figure 27 is a drawing showing the locking operation of an aerosol generating device according to one embodiment of the present invention;

[0065] Figure 28 is a cross-sectional view showing the attachment / detachment of a cover structure (50) according to one embodiment of the present invention.

[0066] Fig. 29 is a perspective view of an aerosol generating device according to another embodiment of the present invention;

[0067] Fig. 30 is a cross-sectional view of an aerosol generating device of the same embodiment as Fig. 29;

[0068] Figure 31 is a cross-sectional view of a liquid cartridge (2100) provided in an aerosol generating device according to one embodiment of the present invention.

[0069] Figure 32 is a cross-sectional view schematically illustrating the airflow of an aerosol generating device according to one embodiment of the present invention.

[0070] Hereinafter, the present invention will be described in more detail with reference to the drawings.

[0071] FIG. 1 is a cross-sectional view illustrating an exemplary combustible cigarette (1000) that can be accommodated in an aerosol generating device of one embodiment of the present invention. The illustrated exemplary combustible cigarette (1000) may include a tobacco portion (1010) including an aerosol-forming substrate, such as nicotine, a filter portion (1020) for contacting the lips of a user, and a cigarette paper (1030) for wrapping the tobacco portion and maintaining the cigarette shape. As described above, the tobacco portion (1010) may be composed primarily of tobacco leaves. The filter portion (1020) includes a filter for filtering out incompletely vaporized liquid, and may additionally include a cooling structure, such as a cavity of a predetermined length, for cooling a heated airflow. The tobacco portion (1010) extends to a predetermined length, and the filter portion (1020) extends subsequent to the tobacco portion (1010) to a predetermined length.

[0072] While the aerosol generating device of the present invention is particularly suited for receiving and heating a combustible cigarette (1000) to generate an aerosol, the reception and use of a heated cigarette, such as a reconstituted tobacco, cannot be completely ruled out. Those skilled in the art will recognize that, in the following embodiments, which are described based on the use of a combustible cigarette (1000), a heated cigarette can also be used in place of the combustible cigarette (1000).

[0073] Figure 2 is a front view of an aerosol generating device according to one embodiment of the present invention. In the embodiments, the aerosol generating device includes a case (110) that forms an exterior and accommodates other components, and a cover structure (140) at the bottom of the case (110). The cover structure (140) covers a predetermined space adjacent to the cigarette receiving portion (111) or opens it back to the outside. Therefore, depending on the embodiment, it may be in the form of a door that can be opened and closed, or in the form of a module that can be combined and separated. In other words, the meaning that the cover structure (140) opens or closes a predetermined space to the outside may mean, for example, that it opens or closes as a door, or that it separates or combines with the case (110) as a module.

[0074] An input unit (150) and a display unit (160) may be formed on the outside of the case (110). A mouthpiece (170) is coupled to the upper end of the case (110) for the user to inhale the aerosol generated by contacting the mouth. In particular, in the embodiments, a combustion-type cigarette (1000) is inserted into the lower end of the aerosol generating device as indicated by an arrow in FIG. 2. Depending on the embodiment, a combustion-type cigarette (1000) including a filter unit (1020) as illustrated in FIG. 1 may be inserted and used, or a combustion-type cigarette that does not include a filter unit (1020), i.e., a combustion-type cigarette that includes only a tobacco unit (1010) and a cigarette paper (1030) surrounding the tobacco unit (1010), may be inserted and used. Since a combustion-type cigarette that does not include a filter portion (1020) like this can be viewed as substantially the same as a tobacco portion (1010), the combustion-type cigarette is referenced by the drawing reference numeral 1000 or 1010 depending on whether or not the filter portion is included.

[0075] Figures 3 and 4 are schematic cross-sectional views of an aerosol generating device according to one embodiment of the present invention, and in particular, Figure 4 illustrates a state in which a combustion-type cigarette (1010) without a filter portion is inserted. In this embodiment, the aerosol generating device is formed with a cigarette receiving portion (111) for receiving a combustion-type cigarette (1010), which has an opening formed at the bottom of the case (110) inside the case (110), and an inhalation passage (112) that extends to communicate with the cigarette receiving portion (111) and opens toward the top of the case (110). In addition, a liquid cartridge (2000) is formed at the top of the case (110). Preferably, the liquid cartridge (2000) can be combined with one side of the case (110) and then separated again for replacement after use.

[0076] In addition, a control unit (120) and a battery (130) may be included inside the case (110), and a cigarette heating unit (121) is formed around the cigarette receiving portion (111). The cover structure (140a) is a hinged door formed at the lowest end of the case (110) in this embodiment, and opens or closes a certain space below the cigarette receiving portion (111) to the outside. In addition, other known elements for operating the aerosol generating device may be included, but detailed drawings and descriptions of known elements that can be sufficiently predicted by those skilled in the art are omitted.

[0077] The case (110) is formed to be easily portable and grippable by a person, and is formed of a rigid material so as to accommodate and protect other components therein. At the lower part of the case (110), preferably at the lower part of the liquid cartridge (2000), a cigarette receiving portion (111) is formed in a hollow shape open downward to accommodate a combustion cigarette (1010), and at the upper part, an inhalation passage (112) is formed, also in a hollow shape, for discharging the generated aerosol.

[0078] The liquid cartridge (2000) includes a consumable aerosol-forming substrate, is coupled with the aerosol-generating device of the embodiment, and is housed inside or outside the case (110). In addition, the liquid cartridge (2000) can be separated from the aerosol-generating device again for replacement. When the liquid cartridge (2000) is coupled with the aerosol-generating device (main body), the aerosol-generating device of the embodiment applies energy to the liquid cartridge (2000), and this energy is transferred to the aerosol-forming substrate stored in the liquid cartridge (2000), so that an aerosol can be generated. The aerosol-forming substrate included in the liquid cartridge (2000) may be in a liquid, gel, or solid state at room temperature, and may be, for example, a mixture including at least one of nicotine, VG (vegetable glycerin), PG (propylene glycol), a flavoring agent, and a drug. Since the aerosol-forming substrate is consumed with the use of the aerosol generating device, the liquid cartridge (2000) may be a consumable, and thus may be easily mounted and detached on one side of the case (110) by an external force. The stored aerosol-forming substrate may be converted into an aerosol by the application of energy, for example, by heating by a heater of the liquid cartridge (2000).

[0079] The liquid cartridge (2000) may include a liquid storage unit (2010) for storing an aerosol-forming substrate and a heater (2020) for absorbing and heating the aerosol-forming substrate. Detailed description and illustration of the liquid storage unit (2010) and the heater (2020) are omitted because those skilled in the art can easily derive their configurations based on conventional technology.

[0080] For example, the liquid storage unit (2010) has a cavity of a predetermined volume and stores an aerosol-forming substrate that is in a liquid, gel, or solid state at room temperature. The heater (2020) may be, for example, a combination of a moisture absorber and a heating wire, and may absorb the aerosol-forming substrate stored in the liquid storage unit (2010) through the moisture absorber, heat the aerosol-forming substrate with a heating wire that generates heat by resistance heating, and thereby generate an aerosol and release it into a vaporization space around the heater (2020). Preferably, the heater (2020) is a ceramic heater, and includes a three-dimensional porous ceramic for absorbing and containing a liquid and a heating wire formed on or near the surface thereof.

[0081] The aerosol released into the vaporization space can move along the outlet (2030) that can be included in the liquid cartridge (2000) and be inhaled by the user through the inhalation path (112). That is, the liquid cartridge (2000) includes the outlet (2030) that connects the vaporization space around the heater (2020) and the inhalation path (112), so that the aerosol generated in the heater (2020) can move upward along the inhalation path (112) and be inhaled by the user along the airflow according to the user's puff (inhalation) action.

[0082] The liquid cartridge (2000) may further include a terminal portion for supplying power to the heater (2020) and an outside air introduction hole for introducing outside air into the vaporization space, but these elements are described in more detail in other embodiments. The terminal portion may be connected to a terminal (not shown) for supplying power to the liquid cartridge (2000) included in the main body of the aerosol generating device, for example, and may be connected to the heating wire of the aforementioned heater (2020) to supply power, and the power may be supplied from the battery (130) under the control of the control portion (120).

[0083] The control unit (120) may include a Micro-Controller Unit (MCU) for controlling the power supply to the cigarette heating unit (121) and the heater (2020) to control the generation of aerosol, or for controlling the overall operation of other aerosol generating devices. The control unit (120) may be implemented in the form of, for example, a PCB or FPCB. The control unit (120) includes elements for supplying energy from the battery (130) to the cigarette heating unit (121) and the heater (2020). For example, it may include a power IC for amplifying or converting power or a switching element for controlling the power supply. In addition, it may include a protection circuit for circuit protection.

[0084] The battery (130) is preferably configured to supply direct current power through the control unit (120) and can be charged by being connected to an external power source through a charging terminal.

[0085] The cigarette heating unit (121) is an element that directly generates heat or induces heat to heat a combustion-type cigarette (1000, 1010) accommodated in the cigarette receiving unit (111). The cigarette heating unit (121) may be formed in the vicinity of the cigarette receiving unit (111), and for example, the cigarette heating unit (121) may directly contact the cigarette receiving unit (111) to transfer heat, or may transfer heat to the cigarette receiving unit (111) via a susceptor in the shape of a metal pipe for heat transfer, thereby heating the accommodated combustion-type cigarette (1000, 1010).

[0086] The cigarette heating unit (121) may be substantially composed of a heating element, for example, and may heat the cigarette receiving unit (111) or the received combustion-type cigarette (1000, 1010) by means of resistance heating or induction heating. That is, for example, the cigarette heating unit (121) may be composed of any of the conventional heater types, such as a film heater, a graphene heater, a coil heater, or an induction heating coil. This cigarette heating unit (121) is also a configuration adopted in a conventional aerosol generating device, and may follow various configurations of the conventional technology, except for matters limited in the embodiments.

[0087] In this embodiment, the aerosol generating device includes an input unit (150) for detecting user input and a display unit (160) for transmitting user notifications. The input unit (150) and the display unit (160) are connected to the control unit (120) and can serve as an interface for performing interactions between the user and the aerosol generating device in relation to control.

[0088] The input unit (150) may employ various means for receiving user input, such as a physical button, dial, or touch sensor. The display unit (160) may be an LED lamp or a liquid crystal display. The configuration and operation of the input unit (150) and the display unit (160) can be easily inferred from prior art.

[0089] The cover structure (140a) is a hinged door formed at the bottom of the case (110) in this embodiment. In particular, FIG. 3 illustrates an example in which the cover structure (140a) is opened and a combustion-type cigarette (1010) is inserted into the cigarette receiving portion (111) in the direction indicated by the arrow at the bottom of the case (110). In addition, FIG. 4 (A) illustrates an example in which the combustion-type cigarette (1010) is completely inserted into the cigarette receiving portion (111) and the cover structure (140a) is closed. In this state, the control unit (120) can initiate power application to the cigarette heating portion (121) and the heater (2020) by a user's operation via the input unit (150) or by satisfaction of preset automatic control conditions. In addition, the power application at this time can be controlled to follow a temperature profile, which is a preset heating temperature change scenario, as observed in the prior art.

[0090] Due to the power application as described above, an aerosol can be generated from a combustion cigarette (1010) and a liquid cartridge (2000) inserted into a cigarette receiving portion (111). At this time, a user can inhale an aerosol derived from an aerosol-forming substrate included in the combustion cigarette (1010) by generating an air flow from the bottom to the top as shown by an arrow in (A) of FIG. 4 through a puffing action. In the usage pattern of such an aerosol generating device, assuming an air flow from the bottom to the top, for convenience, the bottom side can be referred to as “upstream” and the top side can be referred to as “downstream.” At this time, the outside air is drawn in through the outside air inlet (h) formed in the cover structure (140a) by the user's puffing action, passes through the cigarette receiving portion (111) and the combustion-type cigarette (1010) received therein, and is inhaled by the user through the inhalation path (112) and the mouthpiece (170) (not shown in FIGS. 3 and 4) coupled thereto together with the aerosol generated therefrom. In addition, in this process, as also shown by the arrow in FIG. 4 (A), the aerosol generated in the heater (2020) of the liquid cartridge (2000) can be inhaled together by the user by joining with the aerosol generated by heating the combustion-type cigarette (1010) in the inhalation path (112) along the outlet (2030). The mouthpiece (170) may be configured to be easily coupled and detached by the user at the upper end of the inhalation path (112) according to an embodiment. In another embodiment, the mouthpiece (170) may be configured to remain permanently attached to the upper end of the suction tube (112).

[0091] When a combustion-type cigarette is electronically heated using a cigarette heating unit (121), it has been observed that the nicotine contained therein is smoothly converted into an aerosol, but a rich amount of smoke, such as when burning, is not observed. Therefore, the above-described disadvantage can be offset by the aerosol-forming substrate, such as VG (vegetable glycerin) and PG (propylene glycol), contained in the liquid cartridge (2000), being converted into an aerosol and providing a rich amount of smoke. That is, the liquid cartridge (2000) provides a smoke amount that is insufficient due to the heating of the combustion-type cigarette by joining the aerosols generated therefrom in the inhalation path (112), thereby providing sufficient satisfaction to the user despite the electronic heating of the combustion-type cigarette.

[0092] In Fig. 4(B), a scene of removing a used combustion-type cigarette (1010) from an aerosol generating device is illustrated. That is, the cover structure (140a) is opened, and the inserted combustion-type cigarette (1010) can be pulled downward as indicated by an arrow to be taken out from the cigarette receiving portion (111). At this time, as illustrated, due to the opening of the cover structure (140a), a predetermined length of the lower end of the received combustion-type cigarette (1010) is exposed to the outside. Here, the meaning of the predetermined length of the lower end being exposed to the outside may mean that a free space (f) is formed around the exposed predetermined length of the lower end to the extent that a user can pick up and pull the lower end of the received combustion-type cigarette (1010) with their fingers. In this way, the user can easily take out the used combustion-type cigarette (1010) by forming a free space (f) around the lower end of the combustion-type cigarette (1010).

[0093] Fig. 5 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention. This embodiment is similar to the embodiment of Fig. 3, but differs in that it is a cigarette fixing structure that pressurizes and fixes a combustion-type cigarette (1010) accommodated in a cover structure (140b). The cover structure (140b) may be configured to pressurize and fix an inserted combustion-type cigarette (1010), for example, by a user applying an external force in the direction indicated by an arrow in Fig. 5, or to pressurize and fix the combustion-type cigarette (1010) using a restoring force of an elastic body, and its detailed structure may follow the prior art.

[0094] This embodiment, like the embodiment of FIG. 3, is formed so that a predetermined length of the lower end of the received combustion-type cigarette (1010) is exposed to the outside below the cover structure (140b). That is, as shown below the cover structure (140b), a free space (f) is formed around the lower end of the combustion-type cigarette (1010) to the extent that a user can pick up and pull it with his or her fingers, thereby allowing the user to easily withdraw the used combustion-type cigarette (1010).

[0095] Fig. 6 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention. In particular, Fig. 6 (A) illustrates a state before a combustion-type cigarette (1000) is inserted, and Fig. 6 (B) illustrates a state after the combustion-type cigarette (1000) is inserted. As illustrated in Fig. 6 (B), in the aerosol generating device according to the present embodiment, the combustion-type cigarette (1000) is inserted into the device such that the tobacco portion (1010) is positioned at the top, and the filter portion (1020) is positioned at the bottom.

[0096] This embodiment is similar to the embodiment of FIG. 3, but differs in that the cover structure (140c) is a take-out module. That is, the cover structure (140c) can be coupled or separated again toward the lower end of the cigarette receiving portion (111). The cover structure (140c) includes a second cigarette receiving portion (141), a sliding blade (142), and a cigarette holder (143).

[0097] The cover structure (140c) is coupled toward the bottom of the cigarette receiving portion (111) and can be easily separated again by the user. Preferably, the cover structure (140c) and the case (110) can be fixed by magnetic force. In addition, the cover structure (140c) includes a second cigarette receiving portion (141) that is positioned coaxially with the cigarette receiving portion (111) in a particularly coupled state. Accordingly, as illustrated in (B) of FIG. 6, a combustion cigarette (1000) is inserted through the second cigarette receiving portion (141) that is positioned toward the bottom of the aerosol generating device. At this time, preferably, all or a significant portion of the tobacco portion (1010) of the combustion cigarette (1000) is accommodated in the cigarette receiving portion (111).

[0098] FIG. 7 is a schematic cross-sectional view ((A) of FIG. 7) and a front view ((B) of FIG. 7) of an aerosol generating device of the embodiment of FIG. 6, and particularly illustrates a state in which a combustion-type cigarette (1000) is cut by the cover structure (140c) in order to explain the function of the cover structure (140c). As illustrated in FIG. 6 (B), the combustion-type cigarette (1000) is inserted through the second cigarette receiving portion (141) with the tobacco portion (1010) facing upward and is received into the cigarette receiving portion (111). At this time, the cover structure (140c) includes a sliding blade (142) that cuts the received combustion-type cigarette (1000) in a transverse direction.

[0099] The blade (142) cuts the received combustion cigarette (1000) transversely so that the filter portion (1020) of the combustion cigarette (1000) is separated, in particular. In the drawings, as a preferred embodiment, the blade (142) is shown cutting the boundary between the tobacco portion (1010) and the filter portion (1020) of the combustion cigarette (1000), in particular, the tobacco portion (1010) and the filter portion (1020) are separated, but the blade may be cut at a different location depending on the embodiment as long as the filter portion (1020) can be separated. In the present embodiment, when the length from the top of the cigarette receiving portion (111) to the blade (142) is the same as the extension length of the tobacco portion (1010), the blade (142) can cut the boundary between the tobacco portion (1010) and the filter portion (1020) to separate only the filter portion (1020). Accordingly, the combustion-type cigarette (1000) includes only the tobacco part (1010) with the filter part (1020) removed, and this can be viewed as substantially the same object as the combustion-type cigarette (1010) that does not include the filter part.

[0100] The blade (142) has a shape that protrudes with a sharp tip and can cut the combustion-type cigarette (1000) in a transverse direction by moving laterally by an external force. Preferably, the blade (142) is configured to move along a predetermined guide into the second cigarette receiving portion (141) so that its tip can penetrate the contained combustion-type cigarette (1000).

[0101] The blade (142) may be manually or power operated. For example, the blade (142) may include an arm structure (not shown) that is exposed outside the case (110) so that the user can directly push the arm structure by hand in the direction indicated by the arrow in FIG. 7(A) to cut the combustible cigarette (1000), or the blade (142) may be moved laterally by a power means such as a motor (not shown) that may be included in the aerosol generating device or the cover structure (140c) to cut the combustible cigarette (1000).

[0102] Since only the tobacco part (1010) is accommodated in the cigarette receiving part (111) due to the cutting of the blade (142), the cigarette heating part (121) can be operated in this state to generate an aerosol. As described above, according to the airflow from upstream to downstream, i.e., the airflow from the bottom to the top of the aerosol generating device, the user can inhale the aerosol originating from the combustion cigarette (1010) and the liquid cartridge (2000) through the inhalation path (112), and also through the mouthpiece (170) when the mouthpiece (170) is coupled.

[0103] In addition, a cigarette holder (143) for fixing a combustion cigarette (1000) is formed in the cover structure (140c). The cigarette holder (143) is configured to fix the inserted combustion cigarette (1000) by pressing it in the direction indicated by the arrow in (A) of Fig. 7, for example, by a user applying an external force, or by pressing it in the direction indicated by the arrow in (A) of Fig. 7 using a restoring force of an elastic body, and its detailed structure may follow the prior art. The cigarette holder (143) fixes the inserted combustion cigarette (1000) in the cigarette receiving portion (111), and in particular, is positioned above the blade (142) to fix the tobacco portion (1010) that is cut by the blade (142) and remains. Fig. 7 (A) and (B) illustrate a state in which the cut filter portion (1020) of the combustion cigarette (1000) is separated. That is, the filter portion (1020) cut by the blade (142) is not separately fixed, so it can be completely separated from the device through the second cigarette receiving portion (141) naturally by gravity or external force from the user.

[0104] In some embodiments, the filter portion (1020) thus separated may be re-attached to the upper end of the inhalation path (112) by the user instead of the mouthpiece (170). In this case, the cut filter portion (1020) may be combined with the inhalation path (112) and utilized as a means for contacting the user's mouth. In this case, the inhalation path (112) may have an inner diameter suitable for the cut filter portion (1020) of the combustion-type cigarette (1000) to be combined and fixed. That is, in some embodiments, the inhalation path (112) may have a structure suitable for the mouthpiece (170) to be combined or a structure suitable for the filter portion (1020) of the combustion-type cigarette (1000) to be combined.

[0105] FIG. 8 is a schematic cross-sectional view ((A) of FIG. 8) and a front view ((B) of FIG. 8) of the aerosol generating device of the embodiment of FIG. 6 described above, and in particular, in order to explain another function of the module-shaped cover structure (140c), it illustrates a state in which the cut remaining tobacco part (1010) of a combustion-type cigarette (1000) is taken out by the cover structure (140c).

[0106] As described above, the cover structure (140c) combined with the case (110) can be separated again in the downward direction as indicated by the arrow in FIG. 8. At this time, if a combustion-type cigarette (1010) not including a filter portion was accommodated in the cigarette receiving portion (111), the combustion-type cigarette (1010) not including a filter portion fixed to the cigarette holder (143) can be separated from the aerosol generating device together. For example, after the aerosol generating device is finished being used, the spent combustion-type cigarette (1010) can be easily separated and then discarded by separating the cover structure (140c). Therefore, even if the filter portion (1020) of the combustion-type cigarette (1000) is cut, the user can easily take out and discard the remaining portion by separating the cover structure (140c).

[0107] FIG. 9 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention, and FIG. 10 is a schematic cross-sectional view ((A) of FIG. 10) and a front view ((B) of FIG. 10) of an aerosol generating device according to the same embodiment as FIG. 9, and particularly illustrates a state in which the cover structure (140d) is separated in order to explain another function of the cover structure (140d).

[0108] This embodiment, compared to the embodiment of FIG. 6, particularly includes a cover structure (140d) of another embodiment. That is, the cover structure (140d) of this embodiment omits the configuration of the cigarette holder (143), and at this time, the combustion-type cigarette (1010) can be fixed by being in close contact with the cigarette receiving portion (111) or by another component that can be included in the cigarette receiving portion (111). In addition, as illustrated in FIG. 10, the cover structure (140d) exposes a predetermined length of the lower end of the contained combustion-type cigarette (1010) to the outside due to its separation. Here, the meaning of the predetermined length of the lower end being exposed to the outside may mean that a free space (f) is formed around the exposed predetermined length of the lower end to an extent that a user can pick up and pull the lower end of the contained combustion-type cigarette (1010) with his or her fingers. Accordingly, after using the aerosol generating device, the user can easily take out the used combustion cigarette (1010) by holding the lower part exposed to the outside.

[0109] Fig. 11 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention, and Fig. 12 is a block diagram showing control-related elements of the aerosol generating device according to the same embodiment as Fig. 11. This embodiment is similar to the aerosol generating device according to the embodiment of Fig. 6, but differs in that the cigarette heating unit (121) includes a plurality of cigarette heaters (121a, 121b), and further includes a replacement sensor (122) for detecting the opening or separation, or the closing or engagement, of the cover structure (140c).

[0110] In the present embodiment, the cigarette heating unit (121) includes a first cigarette heater (121a) that heats the upper portion of the tobacco portion (1010) of the received combustion-type cigarette (1000), and a second cigarette heater (121b) that heats the lower portion of the tobacco portion (1010). In this way, the first cigarette heater (121a) and the second cigarette heater (121b) are arranged in the vertical direction, which is the flow direction of the air current described above, to heat different portions of the tobacco portion (1010), in particular. It is preferable that the first cigarette heater (121a) and the second cigarette heater (121b) are independently controlled by the control unit (120). That is, the heating timing or heating temperature of the two cigarette heaters (121a, 121b) may be different from each other.

[0111] In particular, in this embodiment, the control unit (120) operates only one of the multiple cigarette heaters (121a, 121b) included in the cigarette heating unit (121) to perform one heating cycle. Of course, even at this time, the heater (2020) of the liquid cartridge (2000) operates together and can compensate for the insufficient amount of smoke. For example, the heating cycle is a period from when power is first supplied to the cigarette heating unit (121) and the heater (2020) to generate an aerosol until the supply is normally terminated, and may mean a typical one-time use unit of an aerosol generating device. For example, when a normal heating termination condition is satisfied, such as when the number of puffs is counted or the consumption amount of the aerosol-forming substrate included in the combustible cigarette (1000) reaches a certain reference value, rather than when the user arbitrarily stops heating, or when a certain heating time has elapsed, heating may be stopped under the control of the control unit (120) to complete one heating cycle. In particular, in the present embodiment, since only one of the plurality of cigarette heaters included in the cigarette heating unit is operated in one heating cycle, the heating cycle may mean a section from when one of the plurality of cigarette heaters included in the cigarette heating unit starts operating until the normal termination condition is reached and the operation is stopped. Through such partial heating, the unit of smoking is divided more finely, so that various smoking preferences of users can be taken into consideration.

[0112] The replacement sensor (122) is a magnetic sensor, such as a Hall sensor, for example, and can detect the opening or separation or closing or joining of the cover structure (140c) by detecting the approach of a permanent magnet included in the cover structure (140c). Alternatively, the replacement sensor (122) is an inductive proximity sensor, and can detect the opening or separation or closing or joining of the cover structure (140c) by detecting the approach of a metal included in the cover structure (140c). Alternatively, the replacement sensor (122) is an optical sensor, and can detect the opening or separation or closing or joining of the cover structure (140c) by recognizing a change in the amount of light caused by the opening or separation or closing or joining of the cover structure (140c). Alternatively, the replacement sensor (122) is a circuit detection sensor that detects a short circuit or opening of a circuit, and can detect the connection or disconnection of a circuit caused by the opening or separation or closing or joining of the cover structure (140c), and can detect the opening or separation or closing or joining. Alternatively, the replacement sensor (122) is a switch activated by the opening, separation, closing, or joining of the cover structure (140c), and can detect the opening, separation, closing, or joining by recognizing the switch state. The replacement sensor (122) is not limited thereto, and those skilled in the art will be able to imagine various embodiments.

[0113] The detection signal of the replacement sensor (122) is applied to the control unit (120), and the control unit (120) can perform several advantageous controls based on this. For example, if the control unit (120) detects the opening or separation of the cover structure (140c) through the replacement sensor (122), it can restrict the operation of the cigarette heating unit (121) and the heater (2020). Alternatively, if the control unit (120) detects the opening or separation or the closing or joining of the cover structure (140c) through the replacement sensor (122), it can recognize that the used combustion-type cigarette (1000, 1010) has been removed.

[0114] Preferably, the control unit (120) of the aerosol generating device of the present embodiment is configured to perform one heating cycle by operating only one cigarette heater selected by a user input detected by the input unit (150) together with the heater (2020) of the liquid cartridge (2000). For example, before using the aerosol generating device, the user may select the first cigarette heater (121a) by transmitting a predetermined input to the input unit (150), in which case the control unit (120) performs one heating cycle only with the first cigarette heater (121a) and the heater (2020). As a result, among the received combustion-type cigarettes (1010), only a portion corresponding to the first cigarette heater (121a) consumes the aerosol-forming substrate. Alternatively, if the user selects the second cigarette heater (121b), the control unit (120) performs one heating cycle using only the second cigarette heater (121b) and the heater (2020). As a result, among the received combustion-type cigarettes (1010), only a portion corresponding to the second cigarette heater (121b) consumes the aerosol-forming substrate.

[0115] In addition, the control unit (120) may be configured to operate multiple cigarette heaters selected by user input detected by the input unit (150) in an arbitrary order, one per heating cycle, together with the heater (2020), to perform multiple heating cycles in succession. For example, the user may select both the first cigarette heater (121a) and the second cigarette heater (121b) by transmitting a predetermined input to the input unit (150) before using the aerosol generating device. In this case, for example, the control unit (120) may perform one heating cycle using only the first cigarette heater (121a) and then immediately operate the second cigarette heater (121b) to perform a second heating cycle. At this time, the received combustion cigarette (1010) may be consumed in a portion corresponding to the first cigarette heater (121a) and a portion corresponding to the second cigarette heater (121b) in sequence.

[0116] In addition, in the aerosol generating device of the present embodiment, the control unit (120) may include a memory unit (123) that memorizes a cigarette heater that has performed a heating cycle among a plurality of cigarette heaters included in the cigarette heating unit (121). For example, the memory unit (123) may be a volatile or non-volatile memory device and may be a component of an MCU included in the control unit (120).

[0117] The control unit (120) may be configured to select a cigarette heater to perform the next heating cycle based on the information stored in the memory unit (123). For example, as described above, rather than selecting a cigarette heater among a plurality of cigarette heaters based on user input, the control unit (120) may be configured to select a cigarette heater that has not performed a heating cycle based on the information stored in the memory unit (123) and perform the heating cycle. For example, when none of the plurality of cigarette heaters (121a, 121b) included in the current cigarette heating unit (121) is in use, if the user transmits an operation intent to the control unit (120) through the input unit (150), the control unit (120) can load the data stored in the memory unit (123), confirm the same, and operate any cigarette heater among the plurality of cigarette heaters, for example, the first cigarette heater (121a), to perform one heating cycle. Thereafter, if the user transmits the operation intent to the control unit (120) again through the input unit (150), the control unit (120) can load the data stored in the memory unit (123), recognize that the second cigarette heater (121b) has not yet been operated, and operate the second cigarette heater (121b), to perform another heating cycle.

[0118] As described above, through control based on the contents stored in the memory unit (123), the control unit (120) can recognize the already consumed portion of the combustion-type cigarette (1010), thereby preventing duplicate heating of the portion where the aerosol-forming substrate has already been consumed. In addition, the control unit (120) can display the contents stored in the memory unit (123) through the display unit (160) so that the user can easily recognize them. For example, when the first cigarette heater (121a) has already completed operation, this can be displayed through the display unit (160), so that the user can easily recognize the consumption state of the aerosol-forming substrate of the currently received combustion-type cigarette (11). For example, when all cigarette heaters (121a, 121b) included in the cigarette heating unit (121) have been used up, the user may be informed of this through the display unit (160) and guided to open the cover structure (140c) and replace the combustion-type cigarette (1010).

[0119] Preferably, when the opening or closing of the cover structure (140c) is detected through the replacement sensor (122), the combustion cigarette (1010) is considered to have been replaced, and the control unit (120) can erase the contents stored in the memory unit (123) to reset the usage status of the combustion cigarette (1010). As a result, the control unit (120) or the user can easily recognize the consumption status of the aerosol-forming substrate of the received combustion cigarette (1010) through the memory unit (123), and also, the problem of redundant heating of an already consumed portion can be prevented.

[0120] Fig. 13 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention, and Fig. 14 is a block diagram showing control-related elements of the aerosol generating device according to the same embodiment as Fig. 13. This embodiment is similar to the aerosol generating device according to the embodiment of Fig. 11, but differs in that it further includes a heating sensor (124a, 124b) for detecting a heating trace formed on a portion of a received combustion-type cigarette (1010) heated by a cigarette heater of a cigarette heating unit (121).

[0121] The heating sensor (124a, 124b) may be configured as a plurality of color sensors or infrared sensors that detect discoloration of each target portion corresponding to a cigarette heater of the cigarette heating unit (121), for example, as in the present embodiment. In the present embodiment, the first heating sensor (124a) is a color sensor that detects discoloration formed in a heated portion of the cigarette paper (1030) corresponding to the first cigarette heater (121a) of the received combustion-type cigarette (1010), and the second heating sensor (124b) is a color sensor that detects discoloration formed in a heated portion of the cigarette paper (1030) corresponding to the second cigarette heater (121b) of the received combustion-type cigarette (1010). The detection contents of the heating sensor (124a, 124b) are also transmitted to the control unit (120), and the control unit (120) can perform several advantageous controls based on this.

[0122] Fig. 15 illustrates exemplary heating traces that may be formed on a heated portion of a combustible cigarette (1010) that does not include a filter portion. In particular, Fig. 15 (A) illustrates exemplary heating traces when one heating cycle is performed through operation of the first cigarette heater (121a), and Fig. 15 (B) illustrates exemplary heating traces when one heating cycle is performed through operation of the second cigarette heater (121b). In addition, Fig. 15 (C) illustrates exemplary heating traces when both the first cigarette heater (121a) and the second cigarette heater (121b) perform one heating cycle. Although the heating marks due to heating of such a combustion-type cigarette (1010) are common, in order to further emphasize them, a temperature-sensitive dye may be additionally added to the cigarette paper (1030) wrapping the combustion-type cigarette (1000), so that a more distinct color change occurs when heated above a predetermined temperature, and such color change may be detected using a heating sensor (124a, 124b) which is a color sensor or an infrared sensor.

[0123] The control unit (120) of the aerosol generating device of the present embodiment preferably selects a cigarette heater among a plurality of cigarette heaters included in the cigarette heating unit (121) to perform the next heating cycle based on the detection contents of the heating sensors (124a, 124b). For example, when a user transmits an operation intention to the control unit (120) through the input unit (150), the control unit (120) receives the detection contents of the heating sensors (124a, 124b), and when a heating trace is detected in a part corresponding to the first cigarette heater (121a) among the combustion-type cigarettes (1010) that do not include the filter unit accommodated as in (A) of FIG. 15, the control unit (120) operates the second cigarette heater (121b) and the heater (2020) of the liquid cartridge (2000) to perform one heating cycle. Conversely, if a heating trace is detected in a part corresponding to the second cigarette heater (121b) among the combustion-type cigarettes (1010) that do not include the received filter part as in (B) of FIG. 15, the control unit (120) operates the first cigarette heater (121a) and the heater (2020) of the liquid cartridge (2000) to perform one heating cycle. In addition, if a heating trace is detected in all parts as in (C) of FIG. 15, the control unit (120) may notify the user of this through the display unit (160) and guide the user to open the cover structure (140c) and replace the combustion-type cigarette (1010). In addition, conversely, if no heating trace is detected in any part of the combustion-type cigarette (1010), the control unit (120) may operate any one cigarette heater and the heater (2020) of the liquid cartridge (2000) to perform a heating cycle.

[0124] Fig. 16 is a cross-sectional view showing a combustion cigarette (1100) according to one embodiment of the present invention. In this embodiment, the combustion cigarette (1100) includes a tobacco portion (1110) extending vertically and including an aerosol-forming substrate, a first filter portion (1120) extending upward from one end of the tobacco portion (1110), a second filter portion (1130) extending downward from the other end of the tobacco portion (1110), and a cigarette paper (1140) that wraps the portions to maintain the shape of the cigarette. As will be apparent to those skilled in the art, the vertical direction refers to the direction in which the combustion cigarette (1100) extends, and also refers to the direction in which airflow flows in normal use of the cigarette. In addition, in the embodiments, the combustion-type cigarette (1100) has a symmetrical shape, and the upper and lower sides are only referred to for convenience of explanation based on the drawing, and may be interchanged, and do not contain any unique properties.

[0125] The tobacco part (1110) includes tobacco leaves, which are the main component of conventional combustible cigarettes. Accordingly, the tobacco part (1110) may include auxiliary additives such as tobacco curing and flavorings made from conventional tobacco leaves. Accordingly, the tobacco part (1110) includes an aerosol-forming substance, for example, an aerosol-forming substrate such as nicotine.

[0126] The first filter unit (1120) and the second filter unit (1130) serve to filter out solid substances or liquids, or some harmful substances, such as tobacco leaves or dust, derived from the tobacco unit (1110) by the user. The detailed materials and structures of the first filter unit (1120) and the second filter unit (1130) may also follow the conventional technology. That is, for example, the filter units (1120, 1130) may be formed of any material selected from pulp, cellulose acetate, polypropylene (PP), polylactic acid (PLA), and paper.

[0127] In particular, in the embodiments, the filter portions (1120, 1130) are stacked on both ends of the tobacco portion (1110). This provides vertical symmetry to the combustion-type cigarette (1100), and therefore, regardless of whether the airflow occurs in the upper or lower direction within the combustion-type cigarette (1100), impurities can be filtered out by the first filter portion (1120) or the second filter portion (1130).

[0128] The cigarette paper (1140) may also follow conventional techniques, and may be formed of, for example, paper or fiber materials. In this way, the combustion-type cigarette (1100) in this embodiment is formed by sequentially stacking a first filter portion (1120), a tobacco portion (1110), and a second filter portion (1130), and surrounding and fixing them with the cigarette paper (1140).

[0129] Preferably, the vertical extension lengths of the first filter portion (1120) and the second filter portion (1130) are selected in the range of 0.1 mm to 10 mm. Compared to the extension length of the filter portions that is typical in the prior art (particularly in the prior art combustion-type cigarettes and tobacco) of 15 mm to 25 mm, by shortening the lengths of the filter portions (1120, 1130), the suction resistance can be reduced, and accordingly, the transfer efficiency of the aerosol can be increased.

[0130] This limitation can be justified because the combustion-type cigarette (1100) generates an aerosol through electronic heating rather than combustion, even though it contains tobacco leaves like conventional cigarettes. That is, when generating an aerosol through heating, the generation of foreign substances or harmful substances is less than when generating an aerosol through combustion, so there is no need to configure a filter section as long as in the conventional technology, and by limiting the extended length of the filter section to the above numerical range, the suction resistance is reduced, thereby allowing an aerosol such as nicotine, for example, generated from the tobacco part (1110) through heating, to move smoothly.

[0131] Fig. 17 is a cross-sectional view showing a combustion-type cigarette (1100a) according to another embodiment of the present invention. In this embodiment, particularly compared to the embodiment of Fig. 16, a first tube portion (1150) is additionally laminated between the first filter portion (1120) and the tobacco portion (1110), and a second tube portion (1160) is additionally laminated between the second filter portion (1130) and the tobacco portion (1110). The tube portions (1150, 1160) include a hollow portion extending vertically in the center to provide a passage for the aerosol to move, thereby lowering the temperature of the airflow during the movement of the aerosol, thereby preventing the user from being burned when inhaling the aerosol. The material and specific internal structure of the tube portions (1150, 1160) may also follow the prior art.

[0132] Fig. 18 is a front view of an aerosol generating device according to another embodiment of the present invention. In particular, the aerosol generating device according to this embodiment accommodates a combustion-type cigarette (1100, 1100a) of the embodiments described in Figs. 16 and 17, or which are self-evidently derived therefrom, and electronically heats it to generate an aerosol. However, for convenience of explanation, only the case where the combustion-type cigarette (1100) of the embodiment of Fig. 16 described above is accommodated will be described.

[0133] The aerosol generating device of Fig. 18 includes a case (210) that forms an exterior and accommodates other components, and an extraction structure (240) at the bottom of the case (210). In addition, an input portion (250) and a display portion (260) may be formed on the outside of the case (210). A mouthpiece (270) is coupled to the top of the case (210) for a user to inhale the generated aerosol. In particular, as indicated by an arrow in Fig. 18, the aforementioned combustion-type cigarette (1100) may be inserted and used at the bottom of the aerosol generating device.

[0134] Figures 19 and 20 are schematic cross-sectional views of an aerosol generating device according to one embodiment of the present invention, and in particular, Figure 20 illustrates a state in which a combustion-type cigarette (1100) is inserted. In this embodiment, the aerosol generating device is formed with a cigarette receiving portion (211) for receiving a combustion-type cigarette (1100), which has an opening formed at the bottom of the case (210) inside the case (210), and an inhalation passage (212) that extends to communicate with the cigarette receiving portion (211) and opens toward the top of the case (210). In addition, a liquid cartridge (2000) can be coupled or separated again at the top inside the case (210).

[0135] In addition, the inside of the case (210) may include a control unit (220), a battery (230), and a cigarette heating unit (221), and a cover structure (240) with a hinged door structure is formed at the bottom to open or close the space below the cigarette receiving unit (211) to the outside. Detailed descriptions of the above components may refer to components of the same name in the preceding embodiments, except for matters specifically limited below.

[0136] The cigarette heating unit (221) is preferably configured to heat only a portion of the upper side of the tobacco portion (1110) of the received combustion-type cigarette (1100), more preferably, the cigarette heating unit (221) is configured to heat only a region of 50% to 60% of the upper side of the tobacco portion (1110) of the received combustion-type cigarette (1100). Through this configuration, a user can insert the combustion-type cigarette (1100) in one direction to first generate an aerosol, and then insert the same combustion-type cigarette (1100) again while turning it over in the opposite direction to heat a region of 50% to 40% of the unheated tobacco portion (1110) to secondarily generate an aerosol. As a result, a user can use a single combustible cigarette (1100) twice, and accordingly, the tobacco portion (1110) can be evenly heated throughout its entire area without any incomplete heating. In addition, since the cigarette heating portion (221) heats only a limited area of ​​the tobacco portion (1110) as defined above in a single use (heating cycle), power efficiency can be increased. As a result, the aerosol generation efficiency for a single combustible cigarette (1100) can be increased.

[0137] In Fig. 20 (B), a scene of removing a used combustion cigarette (1100) from an aerosol generating device is depicted. That is, the cover structure (240) is opened, and the inserted combustion cigarette (1100) can be pulled downward as indicated by the arrow, thereby being withdrawn from the cigarette receiving portion (211).

[0138] Fig. 21 is a schematic cross-sectional view of an aerosol generating device according to another embodiment of the present invention (except that the received combustion-type cigarette (1100) is shown in a front view so that the cigarette paper (1140) is displayed), and Fig. 22 is a block diagram showing control-related elements of the aerosol generating device according to the same embodiment as Fig. 21. This embodiment is similar to the aerosol generating device according to the embodiment of Fig. 19, but differs in that it further includes a heating sensor (222) for detecting a heating trace formed on a portion of the received combustion-type cigarette heated by the cigarette heating element (221).

[0139] The heating sensor (222) may be configured as a color sensor or an infrared sensor that detects discoloration of a heating target area corresponding to the cigarette heating portion (221), for example, as in the present embodiment. In the present embodiment, the heating sensor (222) is a color sensor that detects discoloration formed in a heated area of ​​the cigarette paper (1140) corresponding to the cigarette heating portion (221) of the received combustion-type cigarette (1100). The detection content of the heating sensor (222) is also transmitted to the control unit (220), and the control unit (220) can perform several advantageous controls based on the detection content.

[0140] Fig. 23 illustrates exemplary heating traces (k1, k2) that may be formed on a heated portion of a combustible cigarette (1100). In particular, Fig. 23 (A) illustrates a combustible cigarette (1100) without any heating traces, and Fig. 23 (B) illustrates exemplary heating traces when one heating cycle is performed using the aerosol generating device of the embodiment of Fig. 21. In addition, Fig. 23 (C) illustrates exemplary heating traces when two heating cycles are performed by inserting the combustible cigarette (1100) in both directions.

[0141] Although the heating marks due to heating of such a combustion-type cigarette (1100) are common, in order to further emphasize them, a temperature-sensitive dye may be additionally added to the cigarette paper (1140) wrapping the combustion-type cigarette (1100), so that a more distinct color change occurs when heated above a predetermined temperature, and such color change may be detected using a heating sensor (222), which is a color sensor or an infrared sensor.

[0142] In the present embodiment, the cigarette heating unit (221) of the aerosol generating device is configured to heat only 50% to 60% of the upper region of the tobacco part (1110) of the received combustion-type cigarette (1100), as mentioned in the preferred embodiment. Accordingly, when a combustion-type cigarette ((A) of FIG. 23) with no heating traces is initially inserted into the aerosol generating device and used once, i.e., one heating cycle is performed, a heating trace (k1) can be generated, particularly, in 50% to 60% of the upper region of the tobacco part (1110), as shown in (B) of FIG. 23. When this is turned over again, i.e., the combustion-type cigarette (1100) is inserted into the aerosol generating device in the other direction and another heating cycle is performed, a portion of the tobacco part (1110) that was not heated in the first heating cycle is heated, thereby additionally generating a heating trace (k2) as shown in (C) of FIG. 23.

[0143] For example, if the heating sensor (222) detects a heating trace, the control unit (220) can send a notification to the user. At this time, for example, the control unit (220) can send a notification to the user through the display unit (260). Preferably, the control unit (220) detects a heating trace on at least a portion of the tobacco part (1110) to be heated by the tobacco heating unit (221) before the cigarette heating unit (221) is operated, and if a heating trace is detected, the control unit (220) can notify the user through the display unit (260) and prevent the tobacco heating unit (221) from operating despite the user's control. Accordingly, the heating sensor (222) is preferably installed to detect a heating trace on a portion of the upper portion of the tobacco part (1110) of the received combustion-type cigarette (1100).

[0144] For example, when a user transmits an operation intention to the control unit (220) through the input unit (250), the control unit (220) receives the detection content of the heating sensor (222), and at this time, if a heating trace is detected in the part of the combustion-type cigarette (1100) that is to be heated, i.e., the part corresponding to the cigarette heating unit (221), as shown in (B) of FIG. 23, the control unit (220) can notify the user of this through the display unit (260) and guide the user to open the cover structure (240), turn over the combustion-type cigarette (1100), reinsert it, or replace it with another combustion-type cigarette. In addition, conversely, if no heating trace is detected in the part of the combustion-type cigarette (1100) that is to be heated, the control unit (220) can operate the cigarette heating unit (221) and the heater (2020) of the liquid cartridge (2000) to perform a heating cycle.

[0145] FIG. 24 is a drawing showing an aerosol generating device according to another embodiment of the present invention, wherein (A) shows a combustion-type cigarette, and (B) shows an aerosol generating device into which a combustion-type cigarette is inserted. Referring to FIG. 24, the aerosol generating device according to one embodiment of the present invention includes a case (40) in which a cigarette receiving portion (30) into which a tobacco part (91) of a combustion-type cigarette (90) is inserted is formed, and a cover structure (50) attached to the case (40) and in which a second cigarette receiving portion (63) into which a filter (93) of the combustion-type cigarette (90) is inserted is formed, and the cover structure (50) includes a sliding blade (81) for cutting the contained combustion-type cigarette (90) in a transverse direction, and the blade (81) can be fixed to a blade holder (83).

[0146] The user can slide the blade (81) by pushing the holder knob (85) formed by protruding from the blade holder (83). Without separating the combustion cigarette (90) in advance, the combustion cigarette (90) can be inserted into the tobacco insertion port (62) and the holder knob (85) can be pushed in the direction of the combustion cigarette (90) to slide the blade (81), thereby cutting the combustion cigarette (90) and separating the filter (93).

[0147] Fig. 25 is a drawing showing a cover structure (50) of an aerosol generating device according to another embodiment of the present invention, and Fig. 26 is a cross-sectional view taken along the PP' cutting line of Fig. 25. Referring to Figs. 25 and 26, the cover structure (50) may include a first housing (71) into which the blade holder (83) is inserted and slides. The cover structure (50) may include a second housing (61) in contact with the case (40) and a first housing (71) formed in contact with the second housing (61). That is, the first housing (71) may be formed on the opposite side of the case (40) and on the outer surface of the aerosol generating device.

[0148] The through holes formed in the first housing (71) and the second housing (61) can be combined to form a second cigarette receiving portion (63) with a single through hole. A cigarette insertion port (62) is formed at the entrance of the second cigarette receiving portion (63), and a combustion cigarette (90) can be inserted through the cigarette insertion port (62). After the combustion cigarette (90) is inserted, when the user pushes the holder knob (85) formed in the blade holder (83) in the direction of the combustion cigarette (90), the blade (81) can cut the combustion cigarette (90) to separate the filter (93).

[0149] In the first housing (71), a rail-shaped guide portion may be formed in the same direction as the sliding movement direction so that the blade holder (83) can be inserted and slide, and the blade holder (83) can be mounted thereon. At this time, the blade holder (83) can be fixed with a support portion (89) and a screw (87) formed in a hollow space formed between the first housing (71) and the second housing (61). The support portion (89) prevents the blade holder (83) from falling off, is fixed to the cover structure (50), and can slide together with the blade holder (83).

[0150] Fig. 27 is a drawing showing the locking operation of an aerosol generating device according to one embodiment of the present invention, where (A) represents the locking mode and (B) represents the unlocking mode. Referring to Fig. 27, the cover structure (50) according to one embodiment of the present invention may be characterized by having a locking mode in which the cutting operation is prohibited and an unlocking mode in which the cutting operation is possible, depending on the position of the unlocking button (73). The unlocking buttons (73) are respectively formed on two sides formed in a vertical direction to the direction in which the blade (81) slides, and when the unlocking buttons (73) are pressed, the sliding operation of the blade (81) is performed, and when the unlocking buttons (73) are not pressed, the sliding operation of the blade (81) may be prohibited.

[0151] In one embodiment of the present invention, the lock release button (73) is formed on both sides, but even if it is formed on only one of the two sides, locking and unlocking operations may be possible. The lock release button (73) is connected to the middle of one side of a lever-shaped lock rod (74), and the tip of one side of the lock rod (74) may be mounted on a damper (75), and the tip of the other side may be installed on the side of the blade holder (83). The tip of the other side of the lock rod (74) may be caught on a holder stopper (84) in the shape of a catch formed on the blade holder (83).

[0152] Before the above-described unlock button (73) is pressed, the other end of the lock rod (74) is formed to be caught by the holder stopper (84) of the blade holder (83), so that a lock mode can be entered in which cutting operation is prohibited. If the above-described unlock button (73) is pressed, the lock rod (74) can rotate around the rotation axis so that the other end of the lock rod (74) can be separated in a direction away from the side of the blade holder (83). At this time, the holder stopper (84) of the blade holder (83) is not caught by the end of the lock rod (74), so that a release mode can be entered in which cutting operation is possible.

[0153] The above damper (75) has a shape of an inclined surface and can be supported by a spring (76) that pushes the damper (75). Referring to (A) of Fig. 27, the damper (75) has a shape of an inclined surface and can support one end of the locking rod (74) at a position where the inclined surface begins. At this time, the locking rod (74) can be supported so that it is caught by the holder stopper (84) by the tension of the spring (76) that supports the damper (75). In other words, the position of the locking rod (74) can be forced so that the locking mode can be maintained.

[0154] Referring to (B) of Fig. 27, by pressing the lock release button (73), the cover structure (50) can be operated in the release mode. When the lock release button (73) is pressed, the lock rod (74) rotates around the rotation axis, and one end is released from a position where it blocks the movement of the holder stopper (84) of the blade holder (83), and the other end pushes the inclined surface of the damper (75), so that the damper (75) can move in parallel in the direction in which the spring (76) is installed.

[0155] In this way, when the unlock button (73) is pressed, the tension of the spring (76) is applied in the locking direction, so that the user can maintain the unlock mode without returning to the lock mode by continuing to press the unlock button (73).

[0156] In order to unlock and maintain the release mode, the user must keep the unlock button (73) pressed, so that the user can hold the aerosol generator with one hand and simultaneously press the unlock button (73) while sliding the holder knob (85) of the blade holder (83) with the other hand. Therefore, since the blade is only moved in the release mode that forces the use of both hands simultaneously, the user's hand can be prevented from being harmed by the blade (81).

[0157] Referring to Fig. 27, the blade (81) may be shaped to protrude with a pointed tip at the center. A blade (81) of this shape may operate like a double-edged sword, stabbing and cutting on both sides, so that when cutting a combustion-type cigarette (90) by sliding, it can be sharply cut with little force.

[0158] Fig. 28 is a drawing showing the attachment / detachment of a cover structure (50) according to one embodiment of the present invention. In this embodiment, the cover structure (50) of the aerosol generating device can be detached or attached to the case (40). The cover structure (50) or the case (40) can be attracted to each other magnetically when attached by including a magnetic piece or an iron piece.

[0159] Referring to Fig. 28, a first magnetic piece (41) may be formed on a case (40), and a second magnetic piece (65) may be formed on a cover structure (50). When the cover structure (50) is attached to the case (40), the first magnetic piece (41) and the second magnetic piece (65) may be attracted to each other by magnetic force at adjacent positions, so that the attachment is maintained and separation is not easily achieved. One of the first magnetic piece (41) or the second magnetic piece (65) may be replaced with an iron piece.

[0160] FIG. 29 is a perspective view of an aerosol generating device according to another embodiment of the present invention, and FIG. 30 is a cross-sectional view of an aerosol generating device of the same embodiment.

[0161] In this embodiment, the aerosol generating device comprises a main body (310) and a liquid cartridge (2100) that is detachably attached to the main body (310). A battery (311) and a control unit (312) are installed inside the main body (310), and a terminal for transmitting power from the battery to the liquid cartridge (2100) is installed at a location that can come into contact with the liquid cartridge. At this time, the size and shape of the battery, the installation location of the control unit, etc. may be configured in any way.

[0162] A cigarette receiving portion (330) for receiving and heating a combustion-type cigarette (1000) is disposed within the main body (310). The cigarette receiving portion (330) is located below the liquid cartridge (2100) and has a discharge port (335) communicating with the liquid cartridge (2100). In addition, the cigarette receiving portion (330) may include a heater for heating the cigarette, similar to the cigarette heating portion described above. The aerosol generated by heating the combustion-type cigarette (1000) in the cigarette receiving portion (330) is discharged toward the liquid cartridge (2100) through the discharge port (335). Any type or heater may be used for the cigarette receiving portion (330) as long as it is a heater used in a conventional aerosol generating device.

[0163] FIG. 31 is a cross-sectional view of a liquid cartridge (2100) provided in an aerosol generating device according to one embodiment, and FIG. 32 is a cross-sectional view schematically illustrating an airflow of an aerosol generating device according to one embodiment.

[0164] An aerosol generating device according to one embodiment includes a liquid cartridge (2100), which includes a liquid storage unit (2110) for storing liquid, a heater (2120) for receiving liquid from the liquid storage unit (2110), absorbing and heating the liquid, and vaporizing the liquid, a vaporization space (2130) in which at least one surface of the heater (2120) is exposed and the liquid aerosolized by the heater (2120) is sprayed, an inhalation path (2190) communicating with the vaporization space (2130) and through which the aerosol is discharged so that the user can inhale it, and an outlet (2140) for discharging the aerosol from the vaporization space (2130) to the inhalation path (2190).

[0165] Additionally, the liquid cartridge (2100) has a connecting passage (2150) that connects the discharge port (335; see Fig. 30) and the inhalation passage (2190) to the aerosol generated by heating the combustion-type cigarette (1000; see Fig. 29) in the cigarette receiving portion (330; see Fig. 30). The connecting passage (2150) is separated from the vaporization space (2130) by a partition (2170).

[0166] Accordingly, the cigarette-derived aerosol generated in the cigarette receiving portion (330; see FIG. 30) is somewhat cooled as it passes through the connecting passages (2150, 2160). The liquid-derived aerosol, which is heated by the heater (2120) and sprayed into the vaporization space (2130), and the cooled cigarette-derived aerosol meet in the inhalation passage (2190), causing the vaporized particles of the liquid-derived aerosol to coagulate. The coagulated vaporized particles have increased light reflectivity, thereby improving visibility, allowing a user to visually confirm the aerosol.

[0167] Meanwhile, it is preferable that the cross-sectional area of ​​the outlet (2140) of the vaporization space (2130) gradually decreases as it approaches the suction path (2190). Accordingly, the baffle (2170) is formed in an inclined shape. That is, as the path of the liquid-derived aerosol gradually narrows, the flow rate increases, and as it is discharged to the suction path (2190), the path widens again, and the flow rate decreases. Accordingly, as the liquid-derived aerosol passes through the outlet (2140), the temperature decreases and the vaporized particles aggregate, increasing visibility.

[0168] Meanwhile, the liquid cartridge (2100) is provided with an outside air introduction hole (2180) for introducing outside air into the vaporization space (2130). In order to smoothly inhale the liquid-derived aerosol generated and sprayed in the vaporization space (2130), an airflow flowing into the vaporization space (2130) is required. At this time, when outside air is introduced through the outside air introduction hole (2180) rather than the cigarette-derived aerosol generated in the cigarette receiving portion (330; see FIG. 30) being introduced into the vaporization space (2130), the cohesion of the liquid-derived aerosol can be increased as it is mixed with the airflow having a lower temperature.

[0169] Preferably, the upper part of the inhalation path (2190) is an inlet (2194) through which the user inhales the aerosol by contacting the mouth, and the lower part (2192) extends lower than the outlet (2140) of the vaporization space (2130) and the outlet (2160) of the connection path (2150). That is, the outlet (2140) of the vaporization space (2130) and the connection path (2150) are connected to the inhalation path (2190) at a position higher than the lower part of the inhalation path (2190). Accordingly, when the user inhales through the inlet (2194) and the aerosol remaining in the inhalation path (2190) descends, it can remain lower than the position connected to the outlet (2140) of the vaporization space (2130) and the connection path (2150). Accordingly, it is possible to prevent residual aerosol from flowing back to the outlet (2140) of the vaporization space (2130) and the connecting passage (2150).

[0170] Meanwhile, it is preferable that the outlet (2140) of the vaporization space (2130) have a higher suction pressure than the connecting passage (2150). In this case, if a backflow of the aerosol remaining in the suction passage (2190) occurs, it can be induced to backflow to the cigarette receiving portion (330; see FIG. 30) through the connecting passage (2150) rather than the vaporization space (2130). Accordingly, the aerosol can be prevented from flowing into the vaporization space (2130) and causing the taste of the liquid to deteriorate. In addition, since the liquid droplets that may be generated when the residual aerosol flowing into the cigarette receiving portion (330; see FIG. 30) is cooled are absorbed into the combustion-type cigarette (1000; see FIG. 29), the combustion-type cigarette (1000) is discarded after use, which helps maintain the cleanliness of the aerosol generating device.

[0171] As described above, the present invention is not limited to the specific preferred embodiments described above, and anyone having ordinary skill in the art to which the invention pertains can make various modifications without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.

Claims

1. In an aerosol generating device that generates an aerosol by applying energy to a received combustion cigarette and has an airflow from the bottom to the top, A body in which a case, battery, control unit and terminal for power supply are installed, and a liquid cartridge is attached and detached; A liquid cartridge that is attached to the main body and generates an aerosol through heating; A cigarette receiving portion formed at the bottom of the liquid cartridge of the main body, having an opening formed at the bottom, for receiving a combustion-type cigarette; A cigarette heating unit that heats a received combustible cigarette to generate an aerosol; and comprising an inlet passage for discharging aerosol, which opens toward the top of the case; An aerosol generating device characterized in that the cigarette receiving portion communicates with the liquid cartridge, and accordingly, the aerosol generated by heating the combustible cigarette and the aerosol generated by heating in the liquid cartridge join together in the inhalation path and are inhaled by the user.

2. In paragraph 1, An aerosol generating device characterized in that the main body further includes a cover structure formed at the bottom of the case and opening or closing the space below the cigarette receiving portion to the outside.

3. In paragraph 2, The cover structure is a sliding or swing door. An aerosol generating device characterized in that a predetermined length of the lower end of the received combustion-type cigarette is exposed to the outside due to the opening.

4. In paragraph 2, The cover structure is a module that is combined or separated again toward the bottom of the cigarette container. An aerosol generating device characterized in that a predetermined length of the lower end of the received combustion cigarette is exposed to the outside due to the separation.

5. In paragraph 2, The cover structure is a module that is combined or separated again toward the bottom of the cigarette receiving portion, and includes a holder that fixes the bottom of the received combustion cigarette, An aerosol generating device characterized in that, when the cover structure is separated, the combustion-type cigarette fixed to the holder is separated from the aerosol generating device together.

6. In paragraph 1, An aerosol generating device characterized in that the inhalation path is configured such that a mouthpiece for contacting the user's mouth is coupled and separated at its end.

7. In paragraph 2, The cigarette heating unit includes a plurality of cigarette heaters arranged in the direction of the airflow to heat different parts of the received combustion cigarette, and which can be individually controlled by the control unit. An aerosol generating device characterized in that the control unit performs one heating cycle by operating only one cigarette heater among a plurality of cigarette heaters.

8. In paragraph 7, The main body further includes an input unit that detects user input; An aerosol generating device characterized in that the control unit performs one heating cycle by operating only one cigarette heater selected by a user input detected by an input unit among a plurality of cigarette heaters.

9. In paragraph 8, An aerosol generating device characterized in that the control unit sequentially operates a plurality of cigarette heaters selected by a user input detected by the input unit, one for each heating cycle, to continuously perform multiple heating cycles.

10. In paragraph 7, The control unit includes a memory unit that memorizes a cigarette heater that has performed a heating cycle among a plurality of cigarette heaters included in the cigarette heating unit, An aerosol generating device characterized in that the control unit selects a cigarette heater to perform the next heating cycle based on the contents stored in the memory unit.

11. In paragraph 10, The body further includes a replacement sensor that detects the opening or separation or closing or joining of the cover structure, An aerosol generating device characterized in that the memory of the memory unit is initialized when the opening or separation or closing or joining of the cover structure is detected through a replacement sensor.

12. In paragraph 1, An aerosol generating device characterized in that the cigarette heating unit is configured to heat only 50% to 60% of the upper area of ​​the tobacco portion of the received combustion-type cigarette.

13. In paragraph 7, Further comprising a heating sensor for detecting a heating trace formed on a portion heated by a cigarette heating element of an accepted combustion cigarette; An aerosol generating device characterized in that the control unit determines the cigarette heater to perform the next heating cycle based on the detection contents of the heating sensor.

14. In paragraph 12, Further comprising a heating sensor for detecting a heating trace formed on a portion heated by a cigarette heating element of an accepted combustion cigarette; An aerosol generating device characterized in that the control unit transmits a notification to the user when the heating sensor detects a trace of heating.

15. In paragraph 2, An aerosol generating device characterized in that the cover structure or case is magnetically attracted when closed or coupled, including a magnetic piece or an iron piece.

16. In paragraph 2, The cover structure can be joined or separated again toward the bottom of the cigarette receptacle, An aerosol generating device characterized in that the cover structure further comprises a second cigarette receiving portion for receiving at least a filter portion of a received combustible cigarette; and a sliding blade for cutting the received combustible cigarette transversely.

17. In paragraph 16, An aerosol generating device characterized in that the cover structure includes a housing in which a blade holder having the blade fixed therein is inserted and slides.

18. In paragraph 16, An aerosol generating device characterized in that the cover structure has a lock mode in which cutting operation is prohibited and an unlock mode in which cutting operation is possible depending on the position of the unlock button.

19. In paragraph 18, An aerosol generating device characterized in that the unlock button is connected to the middle of one side of a lever-shaped locking rod, the tip of one side of the locking rod is mounted on a damper, and the tip of the other side is installed on the side of the blade holder.

20. In paragraph 19, The other side of the lock rod is caught on the holder stopper in the shape of a catch formed on the blade holder, An aerosol generating device characterized in that the damper has a shape of an inclined surface and is supported by a spring that pushes the damper.

21. In paragraph 16, An aerosol generating device characterized by a blade having a shape that protrudes with a pointed tip at the center.

22. In paragraph 1, The cigarette receptacle has a discharge port communicating with the liquid cartridge, The suction path is formed in the liquid cartridge, In addition, the liquid cartridge has a liquid storage unit for storing liquid, a heater located at the bottom of the liquid storage unit for receiving and vaporizing liquid, a vaporization space in which at least one surface of the heater is exposed and the liquid is aerosolized, and an outlet for discharging aerosol from the vaporization space to the suction path. In addition, the liquid cartridge is an aerosol generating device characterized in that it has a connecting path that is connected to the outlet of the cigarette receiving portion and the inhalation path, and the connecting path is separated from the vaporization space.

23. In paragraph 22, An aerosol generating device characterized in that the cross-sectional area of ​​the outlet of the vaporization space gradually decreases as it moves toward the suction path.

24. In paragraph 22, An aerosol generating device characterized in that the lower part of the suction path extends lower than the outlet of the vaporization space and the connecting path.

25. In paragraph 22, An aerosol generating device characterized in that the outlet of the vaporization space has a higher suction pressure than the connecting passage.

26. In paragraph 22, An aerosol generating device characterized in that the liquid cartridge has an outside air introduction hole for introducing outside air into a vaporization space.

27. The upper part of the tobacco extending in the vertical direction; A first filter section laminated on one end of the tobacco section; A second filter part laminated on the other end of the tobacco part; and A combustion type cigarette comprising a cigarette paper for forming a cigarette by wrapping a first filter part, a tobacco part, and a second filter part stacked in the vertical direction.

28. In paragraph 27, A combustion-type cigarette, wherein the vertical extension lengths of the first filter section and the second filter section are 0.1 mm to 10 mm.

29. In paragraph 27, A combustion-type cigarette, in which tubes for cooling airflow are respectively stacked between the first filter section and the tobacco section and between the second filter section and the tobacco section.

Images