Combined heating aerosol generator

Abstract

To provide a composite heating aerosol-generating device capable of heating a smoking article having a plurality of aerosol-forming bases.SOLUTION: A composite heating aerosol-generating device 100 is capable of holding and carrying a smoking article 50 comprising a first aerosol-forming base and a second aerosol-forming base, and includes: a cavity into which the smoking article can be inserted; first heating means capable of heating the first aerosol-forming base of the smoking article in a first temperature range; second heating means 142 capable of heating the second aerosol-forming base in a second temperature range; a first sensor and a second sensor each for sensing the temperature of the heating means; a rechargeable battery 110; and a control part 120 which is electrically connected to the first sensor, the second sensor, and the battery, receives DC power supplied from the battery, and controls the first heating means and the second heating means according to detection values of the first sensor and the second sensor.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to an aerosol generating device, and more particularly to a combined heating aerosol generating device capable of heating smoking articles comprising a plurality of aerosol-forming substrates. [Background technology]

[0002] Figure 1 shows an induction heating device for heating an aerosol-forming substrate according to the prior art. The induction heating device 1 comprises a device housing 10 made of plastic and a DC power supply with a rechargeable battery 11a.

[0003] The induction heating device 1 further includes a docking port 12 including pins 12a for docking the induction heating device to a charging station or device for charging the rechargeable battery 11a. The induction heating device 1 also includes power supply electronics 13 configured to operate at a desired frequency, for example, as mentioned above, 5 MHz. The power supply electronics 13 is electrically coupled to the rechargeable battery 11a via suitable electrical connections 13a.

[0004] A tobacco-containing solid aerosol-forming substrate 20 including a susceptor 21 is received within the cavity 14 at the proximal end of the device housing 10, and during operation, an inductor L2 (a cylindrical inductor coil wound in a helical shape) is inductively coupled to the susceptor 21 of the tobacco-containing solid aerosol-forming substrate 20 of the smoking article 2. A filter portion 22 of the smoking article 2 is arranged outside the cavity 14 of the induction heating device 1, and during operation, a consumer can also inhale aerosol through the filter portion 22.

[0005] The induction heating device includes an inductor arranged thermally adjacent to an aerosol-forming substrate, the aerosol-forming substrate including a susceptor. An alternating magnetic field of the inductor generates hysteresis loss and eddy currents in the susceptor, causing the susceptor to heat the aerosol-forming substrate to a temperature at which volatile components capable of forming an aerosol can be released.

[0006] The above-described induction heating device 1 does not disclose a configuration capable of heating smoking articles having a plurality of aerosol-forming substrates. In recent years, there has been an increasing demand for alternative methods that overcome the shortcomings of conventional cigarettes, such as methods that generate aerosol by heating an aerosol-generating substance within a cigarette, rather than by burning the cigarette.

[0007] Generally, the slurry sheet, which is the main raw material of tobacco medium, has low tensile strength and is difficult to manufacture. Furthermore, the tobacco medium contains a large amount of humectant, which makes the physical properties fragile. Furthermore, tobacco mediums containing liquids such as glycerin are hydrophilic and therefore sensitive to the humidity of the surrounding environment, making it difficult to control the manufacturing environment. There is also a limit to the amount of liquid that can be contained in the tobacco medium.

[0008] It has also been proposed to store a liquid in a separate cartomizer in addition to the cigarette containing the tobacco medium to generate an aerosol, and then the user inhales the aerosol derived from the liquid through the cigarette (the so-called 'hybrid type'). However, there are difficulties in managing the liquid contained in the cartomizer (such as expiration dates and deterioration), and there is a risk of condensation forming in the airflow path through which the aerosol generated from the cartomizer moves, causing contamination.

[0009] Thus, there is a need for providing a liquid within a disposable smoking article and obtaining an aerosol therefrom, and there is a need for a device that can generate an aerosol using such a smoking article by including different aerosol-forming substrates capable of generating an aerosol within a single smoking article for inhalation. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Korean Patent No. 10-0385395 [Patent Document 2] Korean Patent No. 10-1678335 [Patent Document 3] Republic of Korea Patent Publication No. 10-2017-0007235 Summary of the Invention [Problem to be solved by the invention]

[0011] SUMMARY OF THE INVENTION An object of the present invention is to provide a composite heating aerosol generating device capable of heating smoking articles having a plurality of aerosol-forming substrates by a plurality of separately controllable heating means. [Means for solving the problem]

[0012] The composite heating aerosol generating device of the present invention is an aerosol generating device for a smoking article having a first aerosol-forming substrate and a second aerosol-forming substrate upstream of the first aerosol-forming substrate, and is sized to be holdable and portable. The device includes: a cavity provided within the device into which the smoking article can be inserted; a first heating means provided within the device and capable of heating the inside or outside of the first aerosol-forming substrate of the smoking article within a first temperature range; a second heating means provided within the device and capable of heating the inside or outside of the second aerosol-forming substrate of the smoking article within a second temperature range; a first sensor and a second sensor provided within the device for sensing the temperatures of the first heating means and the second heating means, respectively; a rechargeable battery provided within the device and acting as a DC power source; and a control unit provided within the device, electrically connected to the first sensor, the second sensor, and the battery, receiving the DC power supplied from the battery, and controlling the first heating means and the second heating means, respectively, based on the sensed values ​​of the first sensor and the second sensor. [Effects of the Invention]

[0013] The composite heating aerosol generator according to the present invention has the advantage that it is equipped with multiple heating means capable of controlling the temperatures of multiple aerosol-forming substrates, respectively, and thus allows smoking articles having different aerosol-forming substrates to be inhaled at once.

[0014] The composite heating aerosol generating device according to the present invention is equipped with a pressure sensor that detects pressure changes caused by the user's puffing and turns heating on and off based on the cumulative integral value of the amount of puffing, thereby enabling variably controlling the heating time without being limited by the user's inhalation pattern.

[0015] The composite heating aerosol generator according to the present invention is provided with a heat insulating section between the excitation coil and the susceptor, thereby preventing overheating of the excitation coil and improving heating efficiency.

[0016] The composite heating aerosol generator according to the present invention can improve heating efficiency by changing the resonant frequency depending on the material of the susceptor. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 shows an induction heating device for heating an aerosol-forming substrate according to the prior art. [Figure 2] 1 is a conceptual diagram showing a partially exploded perspective view and a cross-sectional view of a preferred embodiment of a smoking article that can be used in the combined heating aerosol generating device of the present invention. [Figure 3] 3 conceptually illustrates the components of the smoking article shown in FIG. 2 and the configuration of the wrapping paper surrounding it. [Figure 4] FIG. 4 is a conceptual diagram showing the process of manufacturing a moisture absorbent rod to obtain the moisture absorbent shown in FIG. 3. [Figure 5] The cutting step for cutting a liquid cartridge from the moisture absorbent rod shown in FIG. 4 to produce a liquid cartridge to be provided in a smoking article that can be used in the combined heating aerosol generating device of the present invention is conceptually shown. [Figure 6] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a first embodiment, which combines a resistance heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 7] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a second embodiment, which combines a resistance heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 8]The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a third embodiment, which combines a resistance heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 9] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a fourth embodiment, which combines an induction heating heater as a first heating means and a resistance heating heater as a second heating means, is shown. [Figure 10] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a fifth embodiment, which combines an induction heating heater as a first heating means and a resistance heating heater as a second heating means, is shown. [Figure 11] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a sixth embodiment, which combines an induction heating heater as a first heating means and a resistance heating heater as a second heating means, is shown. [Figure 12] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a seventh embodiment, which combines an induction heating heater as a first heating means and a resistance heating heater as a second heating means. [Figure 13]The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to an eighth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means. [Figure 14] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a ninth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means. [Figure 15] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a tenth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 16] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to an eleventh embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 17] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a twelfth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means, is shown. [Figure 18]The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a thirteenth embodiment, which combines a resistance heating heater as a first heating means and a resistance heating heater as a second heating means, is shown. [Figure 19] The following are conceptual diagrams of various embodiments of a combined heating aerosol generator for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generator according to a fourteenth embodiment, which combines a resistance heating heater as a first heating means and a resistance heating heater as a second heating means, is shown. [Figure 20] The following are conceptual diagrams of various embodiments of a combined heating aerosol generating device for generating aerosol from a smoking article according to the present invention: A cross-sectional view of a smoking article applied to a combined heating aerosol generating device having a resistance heating heater as a first heating means and a second heating means according to the 15th embodiment is shown. [Figure 21] FIG. 1 is a block diagram illustrating an embodiment of temperature control and heating time control in a composite heating aerosol generator that combines a resistance heating heater and an induction heating heater according to the present invention. [Figure 22] FIG. 1 is a block diagram illustrating an embodiment of temperature control and heating time control in a composite heating aerosol generator that combines an induction heating heater according to the present invention with another induction heating heater. [Figure 23] FIG. 1 is a block diagram illustrating an embodiment for explaining temperature control and heating time control in a composite heating aerosol generator that combines a resistance heating heater according to the present invention with a resistance heating heater. [Figure 24] 10 is a graph illustrating time control according to the amount of puffing in the composite heating aerosol generator according to the present invention. [Figure 25] 1 is a graph illustrating an embodiment of temperature control and heating control in the composite heating aerosol generating device according to the present invention. [Figure 26] FIG. 1 shows an example of a circuit block diagram for explaining the adjustment of the resonant frequency by controlling the capacitor switch of the control unit in the composite heating aerosol generator according to the present invention. [Figure 27] FIG. 10 shows another embodiment of a circuit block diagram for explaining the adjustment of the resonant frequency by controlling the capacitor switch of the control unit in the composite heating aerosol generator according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] A composite heating aerosol-generating device according to one embodiment of the present invention is a handheld and portable aerosol-generating device for a smoking article comprising a first aerosol-forming substrate and a second aerosol-forming substrate upstream of the first aerosol-forming substrate, the composite heating aerosol-generating device comprising: a cavity provided within the device into which the smoking article can be inserted; a first heating means provided within the device and capable of heating the inside or outside of the first aerosol-forming substrate of the smoking article within a first temperature range; and a second aerosol-generating means provided within the device and capable of heating the inside or outside of the second aerosol-forming substrate of the smoking article within a second temperature range. a second heating means capable of heating in a temperature range of 100 to 200°C; a first sensor and a second sensor provided within the device for sensing the temperatures of the first heating means and the second heating means, respectively; a rechargeable battery provided within the device and acting as a DC power source; and a control unit provided within the device, electrically connected to the first sensor, the second sensor and the battery, receiving the DC power supplied from the battery, and controlling the first heating means and the second heating means, respectively, according to the sensed values ​​of the first sensor and the second sensor.

[0019] According to an embodiment, the first aerosol-forming substrate provided in the smoking article is a liquid cartridge and the second aerosol-forming substrate is a tobacco body.

[0020] According to an embodiment, the first aerosol-forming substrate provided in the smoking article is a tobacco body and the second aerosol-forming substrate is a liquid cartridge.

[0021] According to an embodiment, the first aerosol-forming substrate and the second aerosol-forming substrate provided in the smoking article are tobacco bodies.

[0022] By way of example, the tobacco body comprises glycerin VG.

[0023] According to an embodiment, the first aerosol-forming substrate and the second aerosol-forming substrate provided in the smoking article are liquid cartridges.

[0024] According to an embodiment, the liquid cartridge contains a liquid or gel composition comprising glycerin VG.

[0025] According to an embodiment, the smoking article further includes a filter and a tube, and the filter, the tube, the tobacco body and the liquid cartridge are wrapped in a single wrapping paper.

[0026] According to an embodiment, the smoking article further comprises a filter and a tube, and the filter, the tube and the tobacco body are wrapped in a single wrapping paper.

[0027] According to an embodiment, the smoking article further includes a filter and a tube, and the filter, the tube and the liquid cartridge are wrapped in a single wrapping paper.

[0028] According to an embodiment, the device may further include a pressure sensor provided within the device and electrically connected to the control unit, and the control unit calculates an integral value for the amount of puffing based on the sensed value input from the pressure sensor, and controls the first heating means and / or the second heating means based on the cumulative integral value.

[0029] According to an embodiment, the first heating means is a heater of the resistance heating type and the second heating means is a heater of the induction heating type.

[0030] According to an embodiment, the first heating means is an induction heating type heater and the second heating means is a resistance heating type heater.

[0031] According to an embodiment, the first heating means is an induction heating type heater and the second heating means is an induction heating type heater.

[0032] According to an embodiment, the first heating means is a heater of the resistance heating type and the second heating means is a heater of the resistance heating type.

[0033] According to an embodiment, the resistance heating type heater is a pipe heater including a heating resistor pattern.

[0034] By way of example, the resistive heater is an immersion heater.

[0035] In one embodiment, the first heating means and the second heating means are immersion heaters that are integrally formed and inserted through the lower center of the smoking article inserted into the cavity, and that directly contact the first aerosol-forming substrate and the second aerosol-forming substrate within the smoking article.

[0036] According to an embodiment, the induction heating heater is a susceptor that reacts with an excitation coil and generates induction heat due to eddy current loss, thereby heating the smoking article.

[0037] According to an embodiment, the device includes a plurality of capacitor switches provided within the device and connected between a control unit and an excitation coil, and the control unit controls the on-off of at least one of the plurality of capacitor switches to control the frequency of the AC current supplied from the excitation coil.

[0038] In some embodiments, a sensor is provided for sensing the inductance of the excitation coil.

[0039] In some embodiments, a sensor is provided for sensing the impedance of the excitation coil.

[0040] According to an embodiment, the heating element includes a heat insulating portion provided between the susceptor and the excitation coil to prevent heat from the susceptor from being transferred to the excitation coil.

[0041] In the embodiment, the heat insulating part is formed by attaching a heat insulating film using a heat insulating filler with a heat insulating shielding function to the outer wall of the heat insulating pipe.

[0042] According to an embodiment, the insulating filler comprises a ceramic powder.

[0043] According to an embodiment, the susceptor has a hollow pipe shape inserted into the center of the first aerosol-forming substrate and / or the second aerosol-forming substrate.

[0044] According to an embodiment, the susceptor is made of at least one of stainless steel, nickel, and cobalt.

[0045] In one embodiment, the induction heating heater is an excitation coil and a susceptor that reacts with the excitation coil to generate induction heat through eddy current loss and heat the smoking article, and the susceptor is inserted through the lower center of the smoking article inserted into the cavity and comes into direct contact with the second aerosol-forming substrate within the smoking article.

[0046] According to an embodiment, the resistive heater of the second heating means is an immersion heater.

[0047] The present invention can be embodied in various forms and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The advantages and features of the present invention, as well as methods for achieving them, will become clearer with reference to the following detailed examples, including the drawings. However, the present invention is not limited to the embodiments disclosed below, and may be embodied in various forms.

[0048] In the following examples, singular expressions include plural expressions unless otherwise clearly specified in the context.

[0049] In the following examples, terms such as "comprise" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more different features or components may be added.

[0050] In the following examples, the terms "upstream" and "downstream" are used to indicate the relative positions of segments constituting a smoking article, based on the direction in which a user inhales air using the smoking article. A smoking article includes an upstream end (i.e., the portion where air enters) and a downstream end (i.e., the portion where air exits). When using a smoking article, a user holds the downstream end of the smoking article in their mouth and inhales air that is inhaled through the upstream end of the smoking article, passes through the interior of the smoking article, and exits at the downstream end. The downstream end is located downstream of the upstream end, while the term "end" can also be described as "terminal end."

[0051] In the drawings, the size of components may be exaggerated or reduced for the sake of convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for the sake of convenience of explanation, and the present invention is not necessarily limited to those shown.

[0052] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily understand and practice the present invention. However, the present invention is not limited to the embodiments described herein, and may be embodied in various different forms.

[0053] A composite heating aerosol-generating device according to one embodiment of the present invention is a handheld and portable aerosol-generating device for a smoking article comprising a first aerosol-forming substrate and a second aerosol-forming substrate downstream of the first aerosol-forming substrate, the composite heating aerosol-generating device comprising: a cavity provided within the device into which the smoking article can be inserted; a first heating means provided within the device and capable of heating the inside or outside of the first aerosol-forming substrate of the smoking article to a first temperature range; and a heating means provided within the device and capable of heating the inside or outside of the second aerosol-forming substrate of the smoking article to a second temperature range. a second heating means capable of heating in a temperature range of 100 to 200°C; a first sensor and a second sensor provided within the device for sensing the temperatures of the first heating means and the second heating means, respectively; a rechargeable battery provided within the device and acting as a DC power source; and a control unit provided within the device, electrically connected to the first sensor, the second sensor and the battery, receiving the DC power supplied from the battery, and controlling the first heating means and the second heating means, respectively, according to the sensed values ​​of the first sensor and the second sensor.

[0054] Figure 2 conceptually shows a partially exploded oblique view and its cross-sectional view of a preferred embodiment of a smoking article used in the composite heating aerosol generating device of the present invention, and Figure 3 conceptually shows the components of the smoking article shown in Figure 2 and the configuration of the wrapping paper surrounding it.

[0055] The smoking article that can be used in the combined heating aerosol generator of the present invention is a type that generates aerosol from the smoking article by heating the smoking article using electrical resistance or induction heating, rather than combustion, and the user inhales the aerosol. Such smoking articles contain an aerosol-forming substrate and / or shredded tobacco in an amount appropriate for the number of inhalations similar to that of a single cigarette in conventional smoking articles, and after a predetermined amount of aerosol is generated, the smoking article no longer generates any significant amount of aerosol and is disposable by the user.

[0056] A smoking article 50 usable in a combined heating aerosol generator according to one embodiment of the present invention has a structure in which a tobacco body 58 containing shredded tobacco as a second aerosol-forming substrate is located at its upstream end, a liquid cartridge 56 containing a liquid composition as a first aerosol-forming substrate is located immediately downstream of the tobacco body 58, a paper tube 54 providing an aerosol transfer path is located immediately downstream of the liquid cartridge 56, and a filter 52 serving as a mouthpiece are layered, all of which are wrapped in wrapping paper 60. The following description will be directed to a smoking article 50 having the above-described structure, but the relative positions of the liquid cartridge 56 containing the liquid composition and the tobacco body 58 containing shredded tobacco may be reversed depending on the embodiment. Furthermore, instead of the tobacco body 58 as the second aerosol-forming substrate, another liquid cartridge 56 as a second aerosol-forming substrate may be disposed at the upstream end of the liquid cartridge 56, which is the first aerosol-forming substrate. Also, instead of the liquid cartridge 56 as the first aerosol-forming substrate, another tobacco body 58 may be placed as the first aerosol-forming substrate at the downstream end of the tobacco body 58 as the second aerosol-forming substrate.

[0057] The liquid cartridge 56 includes a liquid or gel composition, a liquid or gel moisture absorbent in which the liquid or gel composition has been absorbed, and wrapping paper that wraps the sides of the liquid or gel moisture absorbent in a cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm. The liquid or gel moisture absorbent has a moisture absorption rate sufficient to absorb 70 to 120 mg of the liquid composition into the liquid or gel moisture absorbent in the liquid cartridge and maintain it within the liquid cartridge. The cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm conforms to the specifications of currently used regular cigarettes or heated smoking articles. When the liquid cartridge 56 having such specifications is inserted into a heated smoking article and wrapped with a separate wrapping paper 60, it appears no different from a regular cigarette or heated smoking article from the user's perspective.

[0058] The liquid absorbent of the liquid cartridge 56 having these specifications absorbs 70 to 120 mg of liquid or gel composition. This range of values ​​indicates the amount of liquid composition that can provide aerosol derived from the liquid composition when a user inhales aerosol from shredded tobacco provided in a smoking article. If less than the lower limit (70 mg) of liquid or gel composition is absorbed by the liquid absorbent, the aerosol derived from the liquid composition may be insufficient when the user inhales aerosol derived from the shredded tobacco provided in the heated smoking article. Therefore, the amount of liquid composition absorbed by the liquid cartridge must be equal to or greater than the lower limit (70 mg). If more than the upper limit (120 mg) of liquid or gel composition is absorbed by the liquid absorbent, the liquid absorbent in the liquid cartridge having these specifications will have difficulty maintaining the liquid composition absorbed, and the liquid composition may leak out of the liquid cartridge. Therefore, the amount of liquid or gel composition absorbed by the liquid cartridge 56 must be equal to or less than the upper limit (120 mg). A preferred range is 80 to 110 mg, and a more preferred range is 90 to 105 mg.

[0059] The liquid moisture absorbent in the liquid cartridge 56 having the above specifications has a moisture absorption rate sufficient to maintain the liquid composition having the above range within the liquid cartridge. That is, the liquid composition remains absorbed by the liquid moisture absorbent in the liquid cartridge and does not leak out of the liquid cartridge. Here, moisture absorption refers to the moisture absorbent being absorbed by the liquid composition but not leaking out. As will be described later, the filter-tube-liquid cartridge-tobacco body is wrapped in wrapping paper to form a smoking article. The liquid cartridge is in direct contact with the tobacco body, tube, or filter without any separate components upstream or downstream. However, the liquid composition absorbed by the liquid moisture absorbent in the liquid cartridge is simply absorbed and stored in the liquid moisture absorbent, and does not leak out toward the tobacco body, tube, or filter. For this reason, the liquid composition is maintained at a moisture absorption rate of 0.13 to 0.32 mg / mm per unit volume of the liquid moisture absorbent. 3The reason for this numerical limitation is similar to the reason for the numerical limitation on the amount of the liquid composition absorbed by the liquid moisture absorbent of the present invention. That is, the lower limit (0.13 mg / mm 3 ), the amount of liquid composition absorbed by the liquid moisture absorber will be insufficient, and the aerosol derived from the liquid composition may be insufficient in the process of the user inhaling the aerosol derived from the tobacco shreds provided in the heated smoking article. Therefore, the liquid composition absorbed by the liquid cartridge should be within the lower limit (0.13 mg / mm 3 ) or more. 3 If a liquid composition exceeding the specified value is absorbed by the liquid moisture absorber, the liquid moisture absorber in the liquid cartridge having the specified value will have difficulty in keeping the liquid composition absorbed, and the liquid composition may leak out of the liquid cartridge.

[0060] The liquid composition contains VG glycerin, and optionally PG glycerin, water, and a flavoring agent. The liquid composition contains 70-100% VG glycerin, 0-20% PG glycerin, and 0-10% water by weight, and further contains a flavoring agent added in an amount of 10% or less based on the total weight of the resulting liquid composition. According to one preferred embodiment, the present invention uses a liquid composition consisting of 100% VG glycerin by weight. According to another preferred embodiment, the present invention uses a liquid composition consisting of 80% VG glycerin and 20% PG glycerin by weight. According to yet another preferred embodiment, the present invention uses a liquid composition consisting of 75% VG glycerin, 20% PG glycerin, and 5% water by weight. According to yet another preferred embodiment, the liquid composition further contains a flavoring agent added in an amount of 10% or less based on the total weight of the resulting liquid composition. For example, flavorants may include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, ginger, coriander, or coffee, etc. Furthermore, the liquid composition may or may not contain nicotine.

[0061] According to one preferred embodiment, the liquid moisture absorbent is made into a cylindrical shape by folding or rolling a strip of 2 to 3 mm thick made of melamine foam resin. According to another preferred embodiment, the liquid moisture absorbent is made by processing melamine foam resin into a cylindrical shape. The liquid moisture absorbent made of melamine foam resin has a moisture content of preferably 0.01 to 0.013 mg / mm. 3 According to the results of an experiment conducted on a smoking article including a liquid cartridge having a liquid moisture absorbent in which 100 mg of the liquid composition had been absorbed, the liquid composition remained absorbed in the liquid moisture absorbent during the experiment without any problems of leakage to the outside, and sufficient aerosol derived from the liquid composition was confirmed.

[0062] According to another preferred embodiment, the liquid moisture absorbent is made by folding or rolling pulp or a fabric containing pulp into a cylindrical shape or by processing it into a cylindrical shape. The liquid moisture absorbent made of pulp or a fabric containing pulp preferably has a moisture content of 0.25 to 0.4 mg / mm 3 According to the results of an experiment conducted on a smoking article including a liquid cartridge having a liquid moisture absorbent in which 100 mg of the liquid composition had been absorbed, the liquid composition remained absorbed in the liquid moisture absorbent during the experiment without any problems of leakage to the outside, and sufficient aerosol derived from the liquid composition was confirmed.

[0063] According to another preferred embodiment, the liquid moisture absorbent is made of a cotton woven or nonwoven fabric folded or rolled into a cylindrical shape, or processed into a cylindrical shape. The liquid moisture absorbent made of a cotton woven or nonwoven fabric preferably has a moisture content of 0.2 to 0.35 mg / mm 3 According to the results of an experiment conducted on a smoking article including a liquid cartridge having a liquid moisture absorbent in which 100 mg of the liquid composition had been absorbed, the liquid composition remained absorbed in the liquid moisture absorbent during the experiment without any problems of leakage to the outside, and sufficient aerosol derived from the liquid composition was confirmed.

[0064] According to another preferred embodiment, the liquid moisture absorbent of the present invention is made by folding or rolling a woven or nonwoven bamboo fiber fabric into a cylindrical shape, or by processing it into a cylindrical shape. The liquid moisture absorbent made of a woven or nonwoven bamboo fiber fabric preferably has a moisture content of 0.15 to 0.25 mg / mm 3 According to the results of an experiment conducted on a heated smoking article including a liquid cartridge having a liquid moisture absorbent in which 100 mg of the liquid composition had been absorbed, the liquid composition remained absorbed in the liquid moisture absorbent during the experiment without any problems of leakage to the outside, and sufficient aerosol derived from the liquid composition was confirmed.

[0065] According to an embodiment, the liquid cartridge 56 may include a gel aerosol-forming substrate that exists in a gel or solid state at room temperature and vaporizes into an aerosol at a temperature range of 150 to 300°C, and includes glycerin VG, water, and gelatin, and optionally glycerin PG; a gel receptacle that receives the gel aerosol-forming substrate; and wrapping paper that wraps the sides of the gel receptacle in a cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm. The cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm conforms to the specifications of currently used regular cigarettes or heated smoking articles. When a gel aerosol-forming substrate cartridge having such specifications is inserted into a heated smoking article and wrapped with separate wrapping paper, it appears no different from a regular cigarette or heated smoking article from the user's perspective.

[0066] Here, the gel aerosol-forming base contains a liquid composition consisting of 80 to 100% glycerin VG and 0 to 20% glycerin PG by weight, and may contain 1 to 6 g of gelatin per 100 ml of a mixture of 60 to 80% liquid composition and 20 to 40% water by volume, and may optionally contain a flavoring agent added in an amount of 10% or less of the total weight of the liquid composition. Preferably, the liquid composition is contained in the gel receiver in an amount of 70 to 120 mg. Alternatively, the liquid composition may be present in an amount of 0.13 to 0.32 mg / mm per unit volume of the gel receiver. 3 The gel receiver may also contain the compound in an amount of 0.1 to 100% by weight.

[0067] The tobacco body 58 can include a solid material based on tobacco raw materials, such as tabular tobacco, shredded tobacco, and reconstituted tobacco. In one embodiment, the tobacco body 58 can be filled with a crinkled tabular sheet. The tabular sheet can be crinkled by rolling, folding, compressing, or shrinking the sheet substantially transversely to the cylinder axis. The porosity can be determined by adjusting the spacing of the valleys in the crinkled tabular sheet.

[0068] In another embodiment, the tobacco body 58 can be filled with tobacco shreds or the like. Here, the tobacco shreds or the like can be produced by shredding a tobacco sheet (or a slurry sheet). The tobacco body 58 can also be formed by combining multiple tobacco strands in the same direction (parallel) or randomly. Specifically, the tobacco body 58 can be formed by combining multiple tobacco strands to form multiple longitudinal channels through which the aerosol can pass. Depending on the size and arrangement of the tobacco strands, the longitudinal channels can be uniform or non-uniform.

[0069] The tobacco body 58 may further include at least one of ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The tobacco body may also further include glycerin VG, glycerin, and propylene glycol.

[0070] The tobacco body 58 may also contain other additives, such as flavorings and / or organic acids, such as licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, ginger, coriander, or coffee.

[0071] 2 and 3, a liquid cartridge 56 according to one embodiment of the present invention has a moisture absorbent 56a containing a liquid composition wrapped in wrapping paper 61, which functions as a housing. A paper tube 54 and a filter 52 are sequentially stacked at the downstream end of the liquid cartridge 56. The filter 52 and the paper tube 54, together with the liquid cartridge, are wrapped in wrapping paper 60.

[0072] The liquid composition in the liquid cartridge 56 is maintained in the liquid cartridge 56 while being absorbed by the hygroscopic material, and does not flow out of the liquid cartridge, but is vaporized by heating to generate an aerosol.

[0073] The wrapping papers 60, 61, and 62 are preferably made of a material that does not deform when exposed to high heat or liquid, or that does not generate substances harmful to the human body. Alternatively, the wrapping paper may be made of a thin metal film or metal foil, and as described above, the wrapping paper may be made of a paper material with the thin metal film or metal foil superimposed or laminated thereon. According to a preferred embodiment of the present invention, the wrapping paper 61, which serves as the housing for the liquid cartridge 56, is made of a paper and aluminum foil laminate, and the aluminum foil contacts the moisture absorbent 56a to prevent the liquid composition from leaking out the side of the liquid cartridge 56 while remaining absorbed by the moisture absorbent.

[0074] The filter 52 downstream of the liquid cartridge has a hollow portion to form an airflow, but a filter without a hollow portion can also be used. The filter consists of at least one segment and can include, for example, at least one of a tube filter, a cooling structure, and a recess filter. The tube filter has a hollow portion inside. The tube filter and recess filter are made of cellulose acetate, and the tube acting as the cooling structure can be made of pure polylactic acid (PLA) or a combination of polylactic acid and a different degradable polymer.

[0075] More specifically, the filter 52 can be made from materials such as acetate, paper, and PP, and the filter wrapping paper that wraps the filter can be classified into general paper, porous paper, perforated paper, and NWA (Non-Wrapped Acetate). Filters can also be classified into mono-filters consisting of a single segment and composite (double, triple, etc.) filters consisting of multiple segments. Filters can be made from acetate tow, plasticizer, activated carbon, X-DNA, and wrapping paper. Acetate tow is a collection of continuous cellulose acetate filaments and plays a crucial role in determining the suction resistance, which is the most important characteristic of a filter. The properties of acetate tow are determined by the density.

[0076] The plasticizer makes the cellulose acetate fibers soft and flexible, forming bonds at the contact points between the fibers and making the fiber bundles more rigid. Triacetin is used as a plasticizer for cigarette filters.

[0077] Activated carbon, a type of adsorbent, is a substance whose main component is carbon and can be classified according to particle size and properties. Activated carbon is made from plant-based materials such as wood, wood flour, and fruit shells (coconut shells, bamboo, and peach seeds).

[0078] X-DNA is a functional particle extracted from seaweed and then concentrated. Compared to activated carbon, which is mainly used in cigarette filters, it does not affect the taste of cigarettes and has excellent ability to remove various carcinogens.

[0079] The function of wrapping paper is to maintain the shape of the filter floc during filter manufacturing. When manufacturing wrapping paper, it must satisfy physical properties such as porosity, tensile strength, elongation, thickness, and adhesiveness.

[0080] For example, the length of the liquid cartridge 56 may be 14.0 mm, the length of the filter 52 or the paper tube 54 may each be 2.5 mm, and the length of the tobacco body 58 containing the tobacco shreds may be 9.0 mm. Alternatively, as an example, the filter 52 may be 10 mm, the paper tube 54 may be 16 mm, the liquid cartridge 56 may be 10 mm, and the tobacco body 58 may be 12 mm.

[0081] The relative lengths of the filter 52, paper tube 54, liquid cartridge 56, and tobacco body 58, as well as the relative arrangement of the liquid cartridge 56 and the tobacco body 58, are related to the temperature of the aerosol generated in the smoking article 50 by the combined heating aerosol generator 100, which will be described later, when the user inhales the aerosol. Because the temperature of the aerosol generated in the liquid cartridge 56 differs from that of the aerosol generated in the tobacco body 58, and the longer length of the paper tube 54 allows the high-temperature aerosol to be further cooled, the relative lengths and arrangements of these elements can be varied in consideration of the temperature of the aerosol generated in the liquid cartridge 56 and the tobacco body 58 and the relative arrangement of the liquid cartridge 56 and the tobacco body 58, depending on the amounts of liquid composition and shredded tobacco, which depend on the volume of the liquid cartridge 56 and the tobacco body 58, and the heating method of the combined heating aerosol generator 100, which will be described later. It would not be difficult for a person of ordinary skill in the art to which the present invention pertains to satisfy the above-mentioned various requirements while manufacturing a smoking article of a size similar to that of currently commercially available smoking articles.

[0082] FIG. 4 is a conceptual diagram showing the process of manufacturing a moisture absorbent rod to obtain the moisture absorbent shown in FIG.

[0083] 3, a cylindrical moisture absorbent formed by the pipe structure 40 is passed through a liquid composition injector, such as a spray device or a needle, and the liquid composition is sufficiently sprayed or injected into the moisture absorbent 56a before being introduced into the pipe structure 40. The moisture absorbent 56a contains the liquid composition or becomes hydrated by the liquid composition as it passes through the pipe structure 40. Thereafter, the moisture absorbent having absorbed the liquid composition is wrapped in wrapping paper, such as paper (or paper laminated with aluminum foil), and cut to the required length (for example, 140 mm, 100 mm, or 80 mm) to form a moisture absorbent rod 57. As described below, the moisture absorbent rod 57 can be cut into liquid cartridges 56 of the desired length (for example, 14 mm, 10 mm, or 8 mm), and then packed (wrapped) together with other smoking article segments (tubes, filters, tobacco bodies) to produce aerosol-generating smoking articles 50.

[0084] Figure 5 conceptually shows the cutting process for cutting a liquid cartridge from the moisture absorbent rod shown in Figure 4 to produce a liquid cartridge to be provided in a smoking article that can be used in the composite heating aerosol generation device of the present invention.

[0085] FIG. 5 schematically illustrates the cutting process for cutting the moisture absorbent rod 57 obtained as described above to manufacture liquid cartridges 56. As described above, the moisture absorbent rod 57, e.g., having a length of 140 mm, 100 mm, or 80 mm, is introduced into the groove of the index table 70 and moved onto the conveyor belt 90 by the rotation of the index table. Rotary blades 80 are positioned on the path of the moisture absorbent rod 57 as it moves along the index table 70, and the rotary blades cut the moisture absorbent rod 57 into ten liquid cartridges 56 of desired lengths, e.g., 14 mm, 10 mm, and 8 mm. Ten rotary blades 80 are arranged at equal intervals, and can cut a 140 mm moisture absorbent rod 57 into ten 14 mm liquid cartridges 56, a 100 mm moisture absorber rod 57 into ten 10 mm liquid cartridges 56, or an 80 mm moisture absorber rod 57 into ten 8 mm liquid cartridges 56. As described above, the above process and equipment are the same as those used when adding flavoring agents to filters in the existing cigarette manufacturing process, so there is no difficulty in satisfying mass production and quality control requirements.

[0086] According to a preferred embodiment of the present invention, a filter 52 serving as a mouthpiece is located at the downstream end of a liquid cartridge 56, and a tobacco body 58 containing shredded tobacco is located at the upstream end of the liquid cartridge 56. These segments (filter, liquid cartridge, and tobacco body) are packed together to produce an aerosol-generating smoking article 50. As described above, a tube 54 that provides a path for aerosol movement and cools the aerosol can be located between the filter 52 and the liquid cartridge 56, if necessary. These segments (filter 52, tube 54, liquid cartridge 56, and tobacco body 58) are arranged side by side and packed together to produce an aerosol-generating smoking article 50. In an actual production line, these are lined up in sets of 10 or more, and after wrapping, can be cut into multiple smoking articles.

[0087] In any case, the liquid composition in the liquid cartridge 56 remains absorbed by the moisture absorbent 56a within the liquid cartridge and does not leak out of the liquid cartridge 56. However, there is a possibility that the liquid composition may leak out or vaporize into an aerosol due to high temperatures or physical pressure applied to the liquid cartridge during the manufacturing process or after the smoking article is completed. First, according to a preferred embodiment of the present invention, a tobacco body is located upstream of the liquid cartridge and a filter is located downstream of the liquid cartridge. Therefore, even if external physical pressure is applied to the liquid cartridge, it is extremely unlikely that the liquid composition will leak out through the filter or tobacco body. Because the liquid composition begins to generate aerosol at approximately 120°C or above, loss of the liquid composition during the manufacturing process can be prevented by controlling the temperature of the liquid cartridge 56 to below 100°C. When a high temperature equal to or higher than the vaporization initiation temperature of the liquid composition is unavoidably required during the manufacturing process, the amount of liquid composition that may be lost during the process can be estimated, the expected loss amount can be added to the required amount, and the liquid composition can be further controlled by absorbing moisture.

[0088] The following describes an embodiment of a combined heating aerosol generator 100 for generating aerosol from a smoking article that can be used in the present invention. The combined heating aerosol generator 100 described below is a handheld, portable aerosol generator having a cavity into which a smoking article 50, such as the smoking article 50 described in the present invention, containing an aerosol-forming substrate such as a liquid composition or tobacco leaves and wrapped in wrapping paper in the form of an existing cigarette, can be inserted. The aerosol-forming substrate of the smoking article inserted into the cavity is heated by a heating means provided within the aerosol generator to form an aerosol. The heating means, as described below, can be a resistance heating or induction heating method. For example, the heating means is heated to a temperature of 100 to 400°C to heat the aerosol-forming substrate provided within the smoking article 50 inserted into the cavity of the combined heating aerosol generator 100, thereby generating an aerosol. In a preferred example, the target temperature may be in the range of 200 to 350°C, and in a more preferred example, the target temperature may be in the range of 250 to 320°C (for example, 280°C may be the target temperature). In some cases, the target temperature may be in the range of 150 to 250°C (for example, 180°C may be the target temperature), but this may vary depending on whether the object from which aerosol is to be generated is a liquid composition (such as glycerin), a tobacco body, or a tobacco body humidified with a liquid composition such as glycerin. In any case, since the aerosol generated within the smoking article 50 is inhaled into the user's mouth through the tube 54 and the filter 52, even if the aerosol is cooled during the inhalation process, if the temperature of the generated aerosol becomes excessively high, the user may feel uncomfortable or may be burned, and excessive aerosol generation may make it difficult to take several puffs. Therefore, the target temperature of the heating element must be determined in advance taking these factors into consideration. For the above reasons, the upper limit of the target temperature of the heating element is limited as described above.

[0089] According to a preferred embodiment, the temperature of the generated aerosol as it exits through tube 54 and filter 52 can be measured as the mouth end temperature, and to avoid discomfort to the user, the aerosol temperature should be less than 50° C., preferably 45° C. or less. A preferred aerosol mouth end temperature is in the range of 25 to 45° C., and a more preferred aerosol mouth end temperature is in the range of 30 to 40° C.

[0090] The combined heating aerosol generating device 100 includes a rechargeable battery 110 provided within the device and serving as a DC power source, and a control unit 120 that controls the output from the battery 110. FIG. 6 shows a conceptual diagram of the combined heating aerosol generating device 100 together with a smoking article 50, and is shown in a schematic cross-sectional view for explaining the heating method in each embodiment. For ease of explanation, the smoking article 50 will be described based on a configuration in which a filter 52, a tube 54, a liquid cartridge 56 as a first aerosol-forming substrate, and a tobacco body 58 as a second aerosol-forming substrate are arranged in this order and wrapped in wrapping paper 60. In each case, as described above, the relative positions of the liquid cartridge 56 and the tobacco body 58 may be varied, and depending on the embodiment, the order may be filter 52-tube 54-liquid cartridge 56-liquid cartridge 56 or filter 52-tube 54-tobacco body 58-tobacco body 58.

[0091] Furthermore, the following description is provided for illustrative purposes only, and the scope of the present invention is not limited thereto. A person skilled in the art to which the present invention pertains should easily understand that an aerosol generating system within the scope of the present invention can be constructed by removing or adding parts from the configuration of the combined heating aerosol generating device exemplified below, or by combining it with other devices.

[0092] Figure 6 shows a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the first embodiment, which combines a resistance heating heater as the first heating means and an induction heating heater as the second heating means.

[0093] A smoking article 50 is inserted into the composite heating aerosol generator 100. As described above, the smoking article 50 is composed of a filter 52, a paper tube 54, a liquid cartridge 56, and a tobacco body 58 wrapped in wrapping paper 60, and is inserted into a hollow space provided in the composite heating aerosol generator 100.

[0094] The composite heating aerosol generator 100 includes a pipe heater 131 as first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, an excitation coil 142 as second heating means for heating the tobacco leaves and the like of the tobacco body 58 to generate an aerosol, and a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the tobacco body 58. In addition, the composite heating aerosol generator 100 includes a battery 110 for supplying power to the pipe heater 131 and the excitation coil 142, and a control unit 120 configured to control the power supply from the battery 110 to the pipe heater 131 and the excitation coil 142.

[0095] The pipe heater 131 according to the first embodiment described above is a pipe on which a heater wire or a planar heating element pattern is printed or provided. The pipe heater 131 is provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heater 131 is controlled based on the sensed value. The pipe heater 131 heats the liquid cartridge 56 at the side of the liquid cartridge 56 of the smoking article 50, heating the liquid composition absorbed or contained in the liquid cartridge 56 and generating an aerosol.

[0096] Here, the susceptor is a heat pipe 141 made of a metal material that is provided within the excitation coil 142 so as to be surrounded by the excitation coil 142 and that reacts with the excitation coil 142 to be heated to a temperature of 400°C or less by induction heating due to eddy current loss. Depending on the magnitude of the alternating current applied to the excitation coil 142, the temperature of the susceptor can be heated to a temperature of 1000°C or more, but in the present invention, the susceptor, which functions as a heating element as described above, is heated to a temperature of 400°C or less. The heat pipe 141 heats the tobacco body 58 from the side of the tobacco body 58, generating an aerosol from the tobacco shreds provided within the tobacco body 58.

[0097] The first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C to generate aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52. For example, the excitation coil 142 and the susceptor heat the shredded tobacco in the tobacco body 58 to a second temperature range of 150 to 250°C to generate aerosol derived from the shredded tobacco, and the pipe heater 131 heats the absorbent in the liquid cartridge 56 to a first temperature range of 250 to 350°C to generate aerosol derived from the liquid composition of the absorbent. The temperature conditions may be opposite to each other. Furthermore, the second temperature range may overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather may be partially charred.

[0098] Figure 7 shows a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the second embodiment, which combines a resistance heating heater as the first heating means and an induction heating heater as the second heating means.

[0099] The configuration of the smoking article 50 is the same as that of the first embodiment. The composite heating aerosol generator 100 according to the second embodiment includes a pipe heater 131 as first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, an excitation coil 142 as second heating means for heating the tobacco shreds of the tobacco body 58 to generate an aerosol, and a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the tobacco body 58. In addition, the composite heating aerosol generator 100 includes a battery 110 for supplying power to the pipe heater 131 and the excitation coil 142, and a control unit 120 configured to control the power supply from the battery 110 to the pipe heater 131 and the excitation coil 142.

[0100] The pipe heater 131 according to the second embodiment described above is a pipe on which a heater wire or a planar heating element pattern is printed or provided. The pipe heater 131 is provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heater 131 is controlled based on the sensed value. The pipe heater 131 heats the liquid cartridge 56 at the side of the liquid cartridge 56 of the smoking article 50, heating the liquid composition absorbed or contained in the liquid cartridge 56 and generating an aerosol.

[0101] Here, the susceptor is a hollow pipe 143 attached to the center of the tobacco body 58. It reacts with the excitation coil 142 and is heated to a temperature of 400°C or less by induction heating due to eddy current loss. The hollow of the hollow pipe 143 is used as an airflow path. Depending on the magnitude of the AC current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more. However, in the present invention, the susceptor, which functions as a heating element as described above, is heated to a temperature of 400°C or less. The hollow pipe 143 heats the tobacco body 58 at its center, generating aerosol from the tobacco shreds provided within the tobacco body 58. The hollow pipe 143 is made of one of stainless steel, nickel, and cobalt, but can also be plated with one of stainless steel, nickel, and cobalt, which can provide better results in any case.

[0102] The first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C to generate aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52. For example, the excitation coil 142 and the susceptor heat the shredded tobacco in the tobacco body 58 to a second temperature range of 150 to 250°C to generate aerosol derived from the shredded tobacco, and the pipe heater 131 heats the absorbent in the liquid cartridge 56 to a first temperature range of 250 to 350°C to generate aerosol derived from the liquid composition of the absorbent. The temperature conditions may be opposite to each other. Furthermore, the second temperature range may overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather may be partially charred.

[0103] Figure 8 shows a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the third embodiment, which combines a resistance heating heater as the first heating means and an induction heating heater as the second heating means.

[0104] The configuration of the smoking article 50 is the same as in the previously described embodiments. The composite heating aerosol generator 100 according to the third embodiment includes a pipe heater 131 as first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, an excitation coil 142 as second heating means for heating the tobacco shreds of the tobacco body 58 to generate an aerosol, and a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the tobacco body 58. Additionally, the composite heating aerosol generator 100 includes a battery 110 for supplying power to the pipe heater 131 and the excitation coil 142, and a control unit 120 configured to control the power supply from the battery 110 to the pipe heater 131 and the excitation coil 142.

[0105] The pipe heater 131 according to the third embodiment described above is a pipe on which a heater wire or a planar heating element pattern is printed or provided. The pipe heater 131 is provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heater 131 is controlled based on the sensed value. The pipe heater 131 heats the liquid cartridge 56 at the side of the liquid cartridge 56 of the smoking article 50, heating the liquid composition absorbed or contained in the liquid cartridge 56 and generating an aerosol.

[0106] Here, the susceptor is a heat blade 144 that is inserted through the center of the lower portion of the smoking article 50 inserted into the cavity and comes into direct contact with the tobacco body 58, which is the second aerosol-forming substrate within the smoking article 50. The heat blade 144 reacts with the excitation coil 142 and is heated to a temperature of 400°C or less by induction heating due to eddy current loss. Depending on the magnitude of the alternating current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more, but in the present invention, the susceptor, which functions as a heating element as described above, is heated to a temperature of 400°C or less. The heat blade 144 is inserted through the tobacco body 58 and heats the tobacco body 58 at the center thereof, thereby generating an aerosol from the tobacco shreds and the like provided within the tobacco body 58.

[0107] The first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C to generate aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52. For example, the excitation coil 142 and the susceptor heat the shredded tobacco in the tobacco body 58 to a second temperature range of 150 to 250°C to generate aerosol derived from the shredded tobacco, and the pipe heater 131 heats the absorbent in the liquid cartridge 56 to a first temperature range of 250 to 350°C to generate aerosol derived from the liquid composition of the absorbent. The temperature conditions may be opposite to each other. Furthermore, the second temperature range may overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather may be partially charred.

[0108] Figure 9 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the fourth embodiment, which combines an induction heating heater as the first heating means and a resistance heating heater as the second heating means.

[0109] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0110] The composite heating aerosol generator 100 according to the fourth embodiment includes an excitation coil 142 as a first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the liquid cartridge 56, and a hollow pipe 133 as a second heating means for heating the tobacco shreds of the tobacco body 58 to generate an aerosol.

[0111] In addition, the device includes a battery 110 for supplying power to the excitation coil 142 and hollow pipe 133, and a control unit 120 configured to control the supply of power from the battery 110 to the excitation coil 142 and hollow pipe 133.

[0112] The susceptor according to the fourth embodiment described above is a metallic heat pipe 141 provided within the excitation coil 142 so as to be surrounded by the excitation coil 142. The heat pipe 141 reacts with the excitation coil 142 to heat the susceptor to a temperature of 400°C or less through induction heating due to eddy current loss. Depending on the magnitude of the AC current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more. However, in the present invention, the susceptor, which functions as a heating element, is heated to a temperature of 400°C or less, as described above. The heat pipe 141 heats the liquid cartridge 56 from the side of the liquid cartridge 56, thereby heating the liquid composition absorbed or contained in the liquid cartridge 56 and generating an aerosol. Here, the hollow pipe 133 is connected to the center of the tobacco body 58 and serves as a resistance heating heater to heat the tobacco body 58 from the center of the tobacco body 58, thereby generating an aerosol from the tobacco shreds provided within the tobacco body 58. The hollow pipe 133 is made of one of stainless steel, nickel, and cobalt, but may be plated with one of stainless steel, nickel, and cobalt, and in any case, plating can provide better results.

[0113] The above-mentioned first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C, thereby generating an aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52.

[0114] Figure 10 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the fifth embodiment, which combines an induction heating heater as the first heating means and a resistance heating heater as the second heating means.

[0115] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0116] The composite heating aerosol generator 100 according to the fifth embodiment includes an excitation coil 142 as a first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the liquid cartridge 56, and an immersion heater 134 as a second heating means for heating the tobacco leaves of the tobacco body 58, etc., to generate an aerosol.

[0117] In addition, the device includes a battery 110 for supplying power to the excitation coil 142 and the immersion heater 134, and a control unit 120 configured to control the supply of power from the battery 110 to the excitation coil 142 and the immersion heater 134.

[0118] The susceptor according to the fifth embodiment described above is a metallic heat pipe 141 provided within the excitation coil 142 so as to be surrounded by the excitation coil 142. The heat pipe 141 reacts with the excitation coil 142 and is heated to a temperature of 400°C or less by induction heating due to eddy current loss. Depending on the magnitude of the AC current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more. However, in the present invention, the susceptor, which functions as a heating element, is heated to a temperature of 400°C or less, as described above. The heat pipe 141 heats the liquid cartridge 56 from the side of the liquid cartridge 56, thereby heating the liquid composition absorbed or contained in the liquid cartridge 56 and generating an aerosol. Here, the immersion heater 134 is a resistance heating type heater inserted through the tobacco body 58 and heats the tobacco body 58 at the center thereof, thereby generating an aerosol from the tobacco shreds provided within the tobacco body 58.

[0119] The above-mentioned first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C, thereby generating an aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52.

[0120] Figure 11 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the sixth embodiment, which combines an induction heating heater as the first heating means and a resistance heating heater as the second heating means.

[0121] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0122] The composite heating aerosol generator 100 according to the sixth embodiment includes an excitation coil 142 as a first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss and heat the liquid cartridge 56, and a pipe heater 131 as a second heating means for heating the tobacco leaves of the tobacco body 58, etc., to generate an aerosol.

[0123] In addition, the device includes a battery 110 for supplying power to the excitation coil 142 and the pipe heater 131, and a control unit 120 configured to control the power supply from the battery 110 to the excitation coil 142 and the pipe heater 131.

[0124] The susceptor according to the sixth embodiment is a hollow pipe 143 that is connected to the center of the liquid cartridge 56 and is heated to a temperature of 400°C or less by induction heating due to eddy current loss in reaction with the excitation coil 142. The hollow of the hollow pipe 143 is used as an airflow path. Depending on the magnitude of the AC current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more. However, in the present invention, the susceptor, which functions as a heating element as described above, is heated to a temperature of 400°C or less. The hollow pipe 143 is made of one of stainless steel, nickel, and cobalt, but can also be plated with one of stainless steel, nickel, and cobalt, and in any case, plating can provide better results.

[0125] Here, the pipe heater 131 is a pipe on which a heater wire or a planar heating element pattern is printed or provided on the outside. The pipe heater 131 is provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heater 131 is controlled based on the sensed value. The pipe heater 131 heats the tobacco body 58 from the side of the tobacco body 58, generating an aerosol from the tobacco shreds provided inside the tobacco body 58.

[0126] The above-mentioned first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C, thereby generating an aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52.

[0127] Figure 12 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the seventh embodiment, which combines an induction heating heater as the first heating means and a resistance heating heater as the second heating means.

[0128] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0129] The composite heating aerosol generator 100 according to the seventh embodiment includes an excitation coil 142 as a first heating means for heating the liquid composition absorbed in the liquid cartridge 56 to generate an aerosol, a susceptor that reacts with the excitation coil 142 to generate induction heat due to eddy current loss, thereby heating the liquid cartridge 56, and an immersion heater 134 as a second heating means for heating the tobacco shreds of the tobacco body 58 to generate an aerosol.

[0130] In addition, the device includes a battery 110 for supplying power to the excitation coil 142 and the immersion heater 134, and a control unit 120 configured to control the supply of power from the battery 110 to the excitation coil 142 and the immersion heater 134.

[0131] The susceptor according to the seventh embodiment is a hollow pipe 143 that is connected to the center of the liquid cartridge 56 and is heated to a temperature of 400°C or less by induction heating due to eddy current loss in reaction with the excitation coil 142. The hollow of the hollow pipe 143 is used as an airflow path. Depending on the magnitude of the AC current applied to the excitation coil 142, the susceptor can be heated to a temperature of 1000°C or more. However, in the present invention, the susceptor, which functions as a heating element as described above, is heated to a temperature of 400°C or less. The hollow pipe 143 is made of one of stainless steel, nickel, and cobalt, but can also be plated with one of stainless steel, nickel, and cobalt, and in any case, plating can provide better results.

[0132] Here, the immersion heater 134 is a resistance heating type heater that is inserted through the tobacco body 58, heats the tobacco body 58 at the center thereof, and generates an aerosol from the tobacco shreds provided within the tobacco body 58.

[0133] The above-mentioned first and second heating means heat the aerosol-generating substrate to a temperature range of 150 to 350°C, thereby generating an aerosol. The aerosol generated by the user's inhalation is inhaled through the user's mouth via the paper tube 54 and the filter 52.

[0134] Figure 13 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the eighth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means.

[0135] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0136] The composite heating aerosol generator 100 according to the eighth embodiment comprises an excitation coil 142a corresponding to the liquid cartridge 56 as a first heating means, a heat pipe 141a as a susceptor which reacts with the excitation coil 142a to generate induction heat due to eddy current loss and heat the liquid cartridge 56, and an excitation coil 142b corresponding to the tobacco body 58 as a second heating means, and a heat pipe 141b as a susceptor which reacts with the excitation coil 142b to generate induction heat due to eddy current loss and heat the tobacco body 58.

[0137] The heat pipe 141a heats the liquid cartridge 56 at the side of the liquid cartridge 56 of the smoking article 50, generating an aerosol from the liquid composition absorbed or contained in the liquid cartridge 56, and the heat pipe 141b heats the tobacco body 58 at the side of the tobacco body 58 of the smoking article 50, generating an aerosol from the tobacco shreds provided in the tobacco body 58. The heat pipes 141a and 141b of the eighth embodiment are capable of heating the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperatures may be in the range of 150 to 350°C, and can be adjusted according to the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and the filter 52 and into the user's mouth. For example, the heat pipe 141b can heat the shredded tobacco in the tobacco body 58 in a second temperature range of 150-250°C to generate an aerosol derived from the shredded tobacco, and the heat pipe 141a can heat the absorbent in the liquid cartridge 56 in a first temperature range of 250-350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be reversed. Also, the second temperature range can overlap at least partially with the first temperature range. Even when heated in the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper can be scorched.

[0138] Figure 14 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the ninth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means.

[0139] The composite heating aerosol generator 100 according to the ninth embodiment has a similar configuration to that of the eighth embodiment described above, and is provided with insulating sections 145a and 145b between the excitation coil 142a and the heat pipe 141a, and between the excitation coil 142b and the heat pipe 141b, respectively.

[0140] By disposing the heat insulating portions 145a, 145b between the excitation coils 142a, 142b and the heat pipes 141a, 141b, it is possible to prevent the induction heat generated in the heat pipes 141a, 141b and the smoking article 50 from being transferred to the excitation coils 142a, 142b. The heat insulating portions 145a, 145b may be a heat insulating pipe having a pipe shape into which the smoking article 50 is inserted. When high heat generated in the heat pipes 141a, 141b is transferred to the excitation coils 142a, 142b, the resistance of the excitation coils 142a, 142b themselves increases. As a result, the strength of the magnetic field induced by the excitation coils 142a, 142b weakens, and the amount of induction heat generated in the heat pipes 141a, 141b decreases. Therefore, by disposing the heat insulating parts 145a and 145b between the excitation coils 142a and 142b and the heat pipes 141a and 141b, the amount of heat generated in the heat pipes 141a and 141b can be increased. In addition, since the energy loss is small, there is an advantage that the heat temperature of the heat pipes 141a and 141b can be easily controlled.

[0141] The insulating effect of the insulating parts 145a and 145b can be improved by attaching an insulating film using a filler with a heat insulating shielding function to the outer walls of the insulating parts 145a and 145b, which are used for heat insulation. As the insulating filler, ceramic powders such as zirconia, porous silica gel, porous alumina, and aerogel, which have low thermal conductivity, are used.

[0142] Alternatively, the insulating effect of the insulator can be improved by applying a heat insulating paint using a filler with heat insulating properties to the outer walls of the heat insulating parts 145a and 145b. As the heat insulating filler, ceramic powders such as zirconia, porous silica gel, porous alumina, and aerogel, which have low thermal conductivity, are used.

[0143] The heat insulating parts 145a and 145b may be provided between the excitation coil and the susceptor in the composite heating aerosol generator 100 according to the present invention in other embodiments including an induction heating heater.

[0144] Figure 15 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the tenth embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means.

[0145] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0146] The composite heating aerosol generator 100 according to the tenth embodiment comprises an excitation coil 142a corresponding to the liquid cartridge 56 as a first heating means, a heat pipe 141 as a susceptor which reacts with the excitation coil 142a to generate induction heat due to eddy current loss and heat the liquid cartridge 56, and an excitation coil 142b corresponding to the tobacco body 58 as a second heating means, and a heat blade 144 as a susceptor which reacts with the excitation coil 142b to generate induction heat due to eddy current loss and heat the tobacco body 58.

[0147] The heat pipe 141 heats the liquid cartridge 56 at the side of the liquid cartridge 56 of the smoking article 50, generating an aerosol from the liquid composition absorbed or contained in the liquid cartridge, and the heat blade 144 is inserted through the tobacco body 58 and heats the tobacco body 58 at the center of the tobacco body 58, generating an aerosol from the tobacco shreds etc. provided within the tobacco body 58.

[0148] The heat pipe 141 and heat blade 144 of the tenth embodiment can heat the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150 to 350°C, and can be adjusted based on the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and filter 52 and into the user's mouth. For example, the heat blade 144 can heat the shredded tobacco of the tobacco body 58 at a second temperature range of 150 to 250°C to generate an aerosol derived from the shredded tobacco, and the heat pipe 141 can heat the absorbent of the liquid cartridge 56 at a first temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be opposite to each other. Furthermore, the second temperature range can overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper can be scorched.

[0149] Figure 16 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the 11th embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means.

[0150] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0151] The composite heating aerosol generator 100 according to the eleventh embodiment comprises an excitation coil 142a corresponding to the liquid cartridge 56 as a first heating means, a hollow pipe 143 as a susceptor which reacts with the excitation coil 142a to generate induction heat due to eddy current loss and heat the liquid cartridge 56, and an excitation coil 142b corresponding to the tobacco body 58 as a second heating means, and a heat blade 144 as a susceptor which reacts with the excitation coil 142b to generate induction heat due to eddy current loss and heat the tobacco body 58.

[0152] The hollow pipe 143 is located at the center of the liquid cartridge 56 of the smoking article 50 and heats the liquid cartridge 56 to generate an aerosol from the liquid composition absorbed or contained in the liquid cartridge, and the heat blade 144 is inserted through the tobacco body 58 and heats the tobacco body 58 at the center thereof to generate an aerosol from the tobacco shreds provided within the tobacco body 58. The hollow of the hollow pipe 143 is used as an airflow path. The hollow pipe 143 is made of one of stainless steel, nickel, and cobalt, but can also be plated with one of stainless steel, nickel, and cobalt, and in any case, plating can provide better results.

[0153] In the eleventh embodiment, the hollow pipe 143 and the heat blade 144 can heat the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150 to 350°C, and can be adjusted according to the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and the filter 52 and into the user's mouth. For example, the heat blade 144 can heat the shredded tobacco in the tobacco body 58 at a second temperature range of 150 to 250°C to generate an aerosol derived from the shredded tobacco, and the hollow pipe 143 can heat the absorbent in the liquid cartridge 56 at a first temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be opposite to each other. Furthermore, the second temperature range can overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper may be scorched.

[0154] Figure 17 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the 12th embodiment, which combines an induction heating heater as a first heating means and an induction heating heater as a second heating means.

[0155] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0156] The composite heating aerosol generator 100 according to the 12th embodiment comprises an excitation coil 142a corresponding to the liquid cartridge 56 as a first heating means, a hollow pipe 143a as a susceptor that reacts with the excitation coil 142a to generate induction heat due to eddy current loss and heat the liquid cartridge 56, and an excitation coil 142b corresponding to the tobacco body 58 as a second heating means, and a hollow pipe 143b as a susceptor that reacts with the excitation coil 142b to generate induction heat due to eddy current loss and heat the tobacco body 58.

[0157] The hollow pipe 143a is located at the center of the liquid cartridge 56 of the smoking article 50 and heats the liquid cartridge 56 to generate an aerosol from the liquid composition absorbed or contained in the liquid cartridge, while the hollow pipe 143b is located at the center of the tobacco body 58 and heats the tobacco body 58 to generate an aerosol from the tobacco shreds provided in the tobacco body 58. The hollows in the hollow pipes 143a and 143b are used as airflow paths. The hollow pipes 143a and 143b are made of one of stainless steel, nickel, and cobalt, but may also be plated with one of stainless steel, nickel, and cobalt, and in any case, plating can provide better results.

[0158] The hollow pipes 143a and 143b according to the twelfth embodiment can heat the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150-350°C, and can be adjusted according to the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and the filter 52 and into the user's mouth. For example, the hollow pipe 143b can heat the shredded tobacco in the tobacco body 58 at a second temperature range of 150-250°C to generate an aerosol derived from the shredded tobacco, while the hollow pipe 143a can heat the absorbent in the liquid cartridge 56 at a first temperature range of 250-350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be opposite to each other. Furthermore, the second temperature range can overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper may be scorched.

[0159] Figure 18 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the 13th embodiment, which combines a resistance heating heater as the first heating means and a resistance heating heater as the second heating means.

[0160] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0161] The composite heating aerosol generator 100 according to the thirteenth embodiment includes a resistance heating pipe heater 131a corresponding to the liquid cartridge 56 as the first heating means, and a resistance heating pipe heater 131b corresponding to the tobacco body 58 as the second heating means. As with the pipe heaters according to the previous embodiments, this is a pipe on which a heater wire or a planar heating element pattern is printed or provided on the outside. The pipe heaters 131a and 131b according to the thirteenth embodiment are also provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heaters 131a and 131b is controlled based on the sensed value. The pipe heater 131a heats the liquid cartridge 56 of the smoking article 50 from the side of the liquid cartridge 56, generating an aerosol from the liquid composition absorbed or contained in the liquid cartridge 56, and the pipe heater 131b heats the tobacco body 58 of the electrically heated smoking article 50 from the side of the tobacco body 58, generating an aerosol from the tobacco shreds provided in the tobacco body 58. The pipe heaters 131a and 131b of the thirteenth embodiment are capable of heating the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperatures can be in the range of 150 to 350°C, and can be adjusted according to the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and the filter 52 and into the user's mouth. For example, the pipe heater 131b can heat the shredded tobacco in the tobacco body 58 in a second temperature range of 150 to 250°C to generate an aerosol derived from the shredded tobacco, and the pipe heater 131a can heat the absorbent in the liquid cartridge 56 in a first temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be reversed. Also, the second temperature range can overlap at least partially with the first temperature range. Even when heated in the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper can be scorched.

[0162] When the configuration of the thirteenth embodiment is adopted, the problems associated with immersion heaters (such as residues generated from the electrically heated smoking article after use and difficulty in inserting into the liquid cartridge) are eliminated, and even in smoking articles having the configuration shown in the figures, as well as in smoking articles in which the relative positions of the liquid cartridge 56 and the tobacco body 58 have changed, it is possible to appropriately generate aerosol from the liquid cartridge 56 and the tobacco body 58, while also setting and controlling the temperature of the pipe heaters 131a, 131b to match the optimal aerosol generation temperature for each aerosol-forming substrate.

[0163] Figure 19 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device according to the 14th embodiment, which combines a resistance heating heater as the first heating means and a resistance heating heater as the second heating means.

[0164] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0165] The composite heating aerosol generator 100 according to the fourteenth embodiment is provided with a resistance heating type pipe heater 131 corresponding to the liquid cartridge 56 as the first heating means, and an immersion type resistance heating type heater 134 corresponding to the tobacco body 58 as the second heating means. Similar to the pipe heaters according to the previous embodiments, the pipe heater 131 is a pipe on the outside of which a heater wire or a planar heating element pattern is printed or provided.

[0166] The pipe heater 131 according to the fourteenth embodiment is also provided with a temperature sensor pattern to sense the temperature, and the sensed value is used to control the power supply to the pipe heater 131. The pipe heater 131 heats the liquid cartridge 56 of the smoking article 50 at the side of the liquid cartridge 56 to generate an aerosol from the liquid composition absorbed or contained in the liquid cartridge, and the immersion heater 134 is a heating type heater that is inserted through the tobacco body 58 to heat the tobacco body 58 at the center thereof to generate an aerosol from the tobacco shreds provided within the tobacco body 58.

[0167] The pipe heater 131 and the immersion heater 134 of the fourteenth embodiment can heat the liquid cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150-350°C, and can be adjusted based on the temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and the filter 52 and into the user's mouth. For example, the immersion heater 134 can heat the shredded tobacco of the tobacco body 58 in a second temperature range of 150-250°C to generate an aerosol derived from the shredded tobacco, and the pipe heater 131 can heat the absorbent of the liquid cartridge 56 in a first temperature range of 250-350°C to generate an aerosol derived from the liquid composition of the absorbent. The temperature conditions can be opposite to each other. Furthermore, the second temperature range can overlap at least partially with the first temperature range. Even when heated within the above temperature range, the wrapping paper does not burn, but rather a portion of the wrapping paper can be scorched.

[0168] Figure 20 is a schematic cross-sectional view of a smoking article applied to a composite heating aerosol generating device having a single resistance heating heater as the first heating means and the second heating means according to the 15th embodiment.

[0169] The configuration of the smoking article 50 is the same as in the previous embodiment.

[0170] The combined heating aerosol generator 100 according to the fifteenth embodiment has, as the first heating means and the second heating means, one immersion heater 135 corresponding to the liquid cartridge 56 and the tobacco body 58. The immersion heater 135 is a resistance heating type heater that is inserted through the tobacco body 58 and the liquid cartridge 56, heats the tobacco body 58, and generates an aerosol from the tobacco shreds and the like provided in the tobacco body 58, and heats the liquid cartridge 56 at the center of the liquid cartridge 56 of the smoking article 50, and generates an aerosol from the liquid composition absorbed or contained in the liquid cartridge 56.

[0171] FIG. 21 is a block diagram showing an embodiment for explaining temperature control and heating time control in a composite heating aerosol generator that combines a resistance heating heater and an induction heating heater according to the present invention.

[0172] 21 , in the composite heating aerosol generator combining a resistance heating heater and an induction heating heater according to the present invention, a control unit 120 includes a microcontroller 121, a power supply boost circuit 122, an induction logic 123, and a heater driver 124. The microcontroller 121 controls the heater driver 124 to supply power from the battery 110 to the resistance heating heater 151. According to the embodiment, the heater driver 124 is an FET, and is turned on and off by a PWM signal output from the microcontroller 121 to adjust the power supplied from the battery 110 to the resistance heating heater 151. In addition, a temperature sensor 171 is installed in the resistance heating heater 151 or near the resistance heating heater. For example, the temperature sensor 171 may be a temperature sensor pattern provided in the pipe heater 131 described above. The microcontroller 121 adjusts the PWM signal input to the heater driver 124 based on the signal input from the temperature sensor 171, and adjusts the power supplied from the battery 110 to the resistance heating heater 151, thereby controlling the temperature of the resistance heating heater 151.

[0173] The induction heating heater includes an excitation coil 161 and a susceptor 162. The microcontroller 121 controls a power boost circuit 122, which amplifies a DC voltage supplied from the battery 110 for induction heating and supplies a DC current to an induction logic 123. The power boost circuit 122 is used to provide a stable power supply for induction heating the susceptor 162 when the battery 110 is used as a power source for induction heating. The microcontroller 121 also inputs a PWM signal to the induction logic 123. The induction logic 123 performs a switching operation in response to the PWM signal input by the microcontroller 121, converts the DC current supplied from the power boost circuit 122 into AC current, and supplies the AC current to the excitation coil 161, thereby inductively heating the susceptor 162.

[0174] The composite heating aerosol generating device 100 of the present invention is equipped with a pressure sensor 173 at a predetermined position where airflow passes. The pressure sensor 173 detects pressure changes, and as shown in Figure 24, the pressure sensor 173 inputs the detected value to the microcontroller 121 in response to the pressure change as shown in (a) of Figure 24. The microcontroller calculates an integral value for the amount of puffing based on the detected value input from the pressure sensor 173, and when the cumulative integral value reaches the limited capacity of the amount of puffing as shown in (b) of Figure 24, it can turn off the above-mentioned PWM signal or cut off power from the battery 110 to control the operation of the resistance heating heater and the induction heating heater to end, respectively.

[0175] Further, a temperature sensor 172 is installed on or near the susceptor 162, and the temperature sensor 172 inputs a signal based on the temperature of the susceptor 162 to the microcontroller 121. The microcontroller 121 adjusts the frequency of a PWM signal according to the required temperature and inputs it to the induction logic 123. The induction logic 123 adjusts the frequency according to the PWM signal transferred from the microcontroller 121 and supplies AC current to the excitation coil 161. Further, according to an embodiment, a sensor 174 is installed that is electrically connected to the excitation coil 161 to measure an inductance value and input a signal based on the measured value to the microcontroller 121. The microcontroller 121 compares the input signal with a predetermined inductance value, and if it determines that the inductance value of the excitation coil 161 is outside the predetermined range, it determines that an unusable cigarette or a foreign object has been inserted, and controls not to heat the cigarette. In addition, according to an embodiment, the sensor 174 is a sensor 174 that can measure the impedance value of the excitation coil 161 and input a signal based on the measured value to the microcontroller 121. The microcontroller 121 compares the input signal with a predetermined impedance value, and if it determines that the impedance value of the excitation coil 161 deviates from the predetermined range, it determines that an unusable cigarette or foreign object has been inserted, and controls the device so that heating is not performed.

[0176] FIG. 22 is a block diagram showing an embodiment for explaining temperature control and heating time control in a composite heating aerosol generator that combines an induction heating type heater according to the present invention and an induction heating type heater.

[0177] In the composite heating aerosol generator 100 that combines the induction heating heater of the present invention with an induction heating heater, the control unit 120 includes a microcontroller 121, respective power supply boost circuits 122a and 122b, and induction logic 123a and 123b.

[0178] The composite heating aerosol generator 100, which combines an induction heating heater according to the present invention and an induction heating heater, includes an excitation coil 161a and a susceptor 162a as an induction heating heater, and an excitation coil 161b and a susceptor 162b as another induction heating heater. The microcontroller 121 controls power supply boost circuits 122a and 122b corresponding to each induction heating heater, and the power supply boost circuits 122a and 122b amplify the DC voltage supplied from the battery 110 for induction heating and supply DC current to induction logic circuits 123a and 123b. The power supply boost circuits 122a and 122b are used to provide a stable power supply for induction heating the susceptors 162a and 162b when the battery 110 is used as the power source for induction heating. The microcontroller 121 also inputs PWM signals to induction logics 123a and 123b corresponding to the respective induction heating methods. The induction logics 123a and 123b perform switching operations in response to the PWM signals input by the microcontroller 121, converting the DC current supplied from the power supply boost circuits 122a and 122b into AC current and supplying it to the excitation coils 161a and 161b, thereby inductively heating the susceptors 162a and 162b. In the drawing, reference numerals 182a and 182b denote capacitors.

[0179] The composite heating aerosol generating device 100 of the present invention is equipped with a pressure sensor 173 at a predetermined position where airflow passes. The pressure sensor 173 detects pressure changes, and as shown in Figure 24, the pressure sensor 173 inputs the detected value to the microcontroller 121 in response to the pressure change as shown in (a) of Figure 24. The microcontroller calculates the integral value for the amount of puffing based on the detected value input from the pressure sensor 173, and when the cumulative integral value reaches the limited capacity of the amount of puffing as shown in (b) of Figure 24, it turns off the above-mentioned PWM signal or controls the battery 110 to cut off the power applied to each power supply boost circuit 122a, 122b, thereby controlling the operation of each induction heating type heater to be terminated.

[0180] Furthermore, temperature sensors 172a and 172b are installed on or near the susceptors 162a and 162b, respectively. The temperature sensors 172a and 172b input signals based on the temperature detection of the susceptors 162a and 162b to the microcontroller 121. The microcontroller 121 adjusts the frequency of each PWM signal according to the required temperature and inputs the signals to the induction logics 123a and 123b. The induction logics 123a and 123b can supply AC current to the excitation coils 161a and 161b while adjusting the frequency according to the PWM signal transferred from the microcontroller 121. In addition, according to an embodiment, inductance detection sensors 174a, 174b are provided which are electrically connected to the excitation coils 161a, 161b to measure the inductance value and input a signal based on the measured value to the control device. The microcontroller 121 compares the input signal with a predetermined inductance value, and if it determines that the inductance value of the excitation coil 161a and / or excitation coil 161b is outside the predetermined range, it determines that an unusable cigarette or foreign object has been inserted, and controls the battery 110 to cut off the power applied to each power supply boost circuit 122a, 122b to prevent overheating. In addition, according to an embodiment, the aforementioned sensors 174a and 174b are sensors 174a and 174b that can measure the impedance value of the excitation coils 161a and 161b and input a signal based on the measured value to the microcontroller 121. The microcontroller 121 compares the input signal with a predetermined impedance value, and if it determines that the impedance value of the excitation coils 161a and / or 161b deviates from the predetermined range, it determines that an unusable cigarette or foreign object has been inserted, and controls the device so that heating is not performed.

[0181] FIG. 23 is a block diagram showing an embodiment for explaining temperature control and heating time control in a composite heating aerosol generator that combines a resistance heating type heater according to the present invention with a resistance heating type heater.

[0182] 23, in a composite heating aerosol generator 100 that combines a resistance heating heater and a non-resistance heating heater according to the present invention, a control unit 120 includes a microcontroller 121 and heater drivers 124a and 124b. The microcontroller 121 controls the heater drivers 124a and 124b to supply power from a battery 110 to the resistance heating heaters 151a and 151b. According to an embodiment, the heater drivers 124a and 124b are FETs that are turned on and off by PWM signals output from the microcontroller 121, thereby adjusting the power supplied from the battery 110 to the resistance heating heaters 151a and 151b. Furthermore, the temperature sensors 171a and 171b are installed on or near the resistance heating heaters 151a and 151b, and for example, the temperature sensors 171a and 171b may be the temperature sensor patterns provided for the above-mentioned pipe heater 131. The microcontroller 121 adjusts the PWM signals input to the heater drivers 124a and 124b based on the signals input from the temperature sensors 171a and 171b, respectively, and adjusts the power supplied from the battery 110 to the resistance heating heaters 151a and 151b, thereby controlling the temperatures of the resistance heating heaters 151a and 151b. According to the embodiment, the microcontroller 121 adjusts the PWM signals input to the heater drivers 124a, 124b based on signals input from temperature sensors 171a, 171b installed in or near the resistance heating heaters 151a, 151b, and adjusts the power supplied from the battery 110 to the resistance heating heaters 151a, 151b, thereby controlling the temperatures of the resistance heating heaters 151a, 151b.

[0183] The composite heating aerosol generating device 100 of the present invention is equipped with a pressure sensor 173 at a predetermined position where airflow passes. The pressure sensor 173 detects pressure changes, and as shown in Figure 24, the pressure sensor 173 inputs the detected value to the microcontroller 121 in response to the pressure change as shown in (a) of Figure 24. The microcontroller calculates the integral value for the amount of puffing based on the detected value input from the pressure sensor 173, and when the cumulative integral value reaches the limited capacity of the amount of puffing as shown in (b) of Figure 24, it turns off the above-mentioned PWM signal and controls the operation of each resistance heating type heater to end.

[0184] FIG. 25 is a graph for explaining an embodiment of temperature control and heating control in the composite heating aerosol generator according to the present invention.

[0185] Referring to (a) of Figure 25, according to an embodiment, the microcontroller 121 of the control unit 120 described above controls the second heating means to preferentially heat the second heating means that heats the second aerosol-forming substrate containing a medium with a high heating temperature, and controls the first heating means to heat the first heating means slower than the second heating means, but can control the first heating means to start heating the first heating means before the preheating of the second heating means is completed according to a signal sensed by the second sensor, a temperature sensor. Also, referring to (b) of Figure 25, according to an embodiment, the microcontroller 121 of the control unit 120 controls the second heating means to heat the second aerosol-forming substrate containing a medium with a high heating temperature preferentially, but in order to heat quickly, the second heating means is controlled to apply high power from the battery 110, and when heating the first heating means, only the power applied to the first heating means is reduced, and the power applied to the second heating means can be adjusted to heat.

[0186] 25(c), the pressure sensor 173 senses a change in pressure over time, and as shown in Figures 24(a) and 24(b), the microcontroller 121 of the control unit 120 calculates an integral value for the amount of puffing based on the sensed value input from the pressure sensor 173. When the cumulative integral value of the calculated integral value reaches the limit capacity of the amount of puffing, the microcontroller 121 can notify the user through a display device such as a display or LED (not shown), determine that the smoking article 50 has been used, and control the first heating means and the second heating means to complete heating.

[0187] According to an embodiment, the composite heating aerosol generator 100 includes a sensor 174 electrically connected to the microcontroller 121 and capable of measuring the impedance of an excitation coil that inductively heats a susceptor that heats the first aerosol-forming substrate or the second aerosol-forming substrate. When the aerosol-forming material in the aerosol-forming substrate runs out, the temperature of the susceptor rises, and the impedance of the excitation coil increases. Referring to FIG. 25(d), when the impedance suddenly increases in response to a signal input from the sensor 174, the microcontroller determines that the aerosol-forming material in the aerosol-forming substrate has run out and can notify this through a display device such as a display or LED (not shown). Furthermore, when a used smoking article 50 is inserted and heated, the impedance value of the excitation coil also rises suddenly. Therefore, when the impedance suddenly increases in response to a signal input from the sensor 174, the microcontroller 121 determines that a used smoking article 50 has been inserted and can notify this through a display device such as a display or LED (not shown). Furthermore, if the impedance value is not within the range of the predetermined susceptor impedance value according to the signal input from the sensor 174, the microcontroller 121 controls the battery 110 to cut off the power applied to the power supply boost circuit 122, thereby preventing heating.

[0188] FIG. 26 shows an embodiment of a circuit block diagram for explaining the adjustment of the resonance frequency by the capacitor switch control of the control unit in the composite heating aerosol generator according to the present invention.

[0189] 26, in the composite heating aerosol generating device 100, the control unit 120 includes a microcontroller 121, a power supply boost circuit 122, an induction logic 123, and a control logic 125. A plurality of capacitors 182 are installed between the induction logic 123 and the excitation coil 161. The plurality of capacitors 182 are each connected to a capacitor switch 181, and each capacitor switch 181 is connected to the control logic 125, which can turn each capacitor switch 181 on or off. Each capacitor switch 181 is configured to be turned on and off by the control logic 125, and can be made of, for example, a PowerFET, a MOSFET, or a transistor.

[0190] The microcontroller 121 presets a resonant frequency depending on the material of the susceptor 162. Depending on the material of the susceptor 162 used in the composite heating aerosol generator 100, the microcontroller 121 controls the control logic 125 included in the induction logic 123 to supply AC current to the excitation coil 161 at the resonant frequency. The control logic 125 turns on or off each capacitor switch 181, thereby obtaining a predetermined resonant frequency depending on the material of the susceptor 162. According to an embodiment, a sensor 174 is provided connected to the excitation coil 161 to measure impedance. The microcontroller 121 determines the impedance based on a signal value input from the sensor 174 and controls the control logic 125 included in the induction logic 123 to obtain a desired resonant frequency depending on the material of the susceptor 162. The control logic 125 turns on or off each capacitor switch 181, thereby obtaining a desired resonant frequency depending on the material of the susceptor 162. When the capacitor switch 181 is turned on, the resonant frequency increases, and when the capacitor switch 181 is turned off, the resonant frequency decreases. According to an embodiment, the sensor 174 may be a current sensor, a voltage sensor, a temperature sensor, a resistance sensor, or the like.

[0191] FIG. 27 shows another embodiment of a circuit block diagram for explaining the adjustment of the resonance frequency by the capacitor switch control of the control unit in the composite heating aerosol generator according to the present invention.

[0192] 27, according to another embodiment of the present invention, the induction logic 123 and the control logic 125 are configured separately and may be connected to each other via an interface such as I2C, SPI, GPIO, etc. According to this embodiment, a sensor 174 is provided between the excitation coil 161 and the induction logic 123 to measure impedance, and the induction logic 123 determines the impedance based on a signal value received from the sensor 174 and controls the control logic 125 via the interface to obtain a desired resonant frequency depending on the material of the susceptor 162. The control logic 125 turns on or off each capacitor switch 181, thereby obtaining a desired resonant frequency depending on the material of the susceptor 162. In addition, according to the embodiment, a sensor 174 is provided between the excitation coil 161 and the control logic 125 to measure impedance, and the control logic 125 determines the impedance based on the signal value received from the sensor 174 and turns on or off each capacitor switch 181 to obtain a desired resonant frequency depending on the material of the susceptor 162, thereby obtaining a desired resonant frequency depending on the material of the susceptor 162.

[0193] Those skilled in the art will understand that the present invention can be embodied in various modified forms without departing from the essential characteristics of the above description. Therefore, the disclosed methods and the like should be considered in an illustrative and not a restrictive sense. The scope of the present invention is defined by the claims, not the above description, and all differences within the scope of the claims should be interpreted as being included in the present invention. [Industrial Applicability]

[0194] According to the present invention, the composite heating aerosol generator is provided with a plurality of heating means capable of controlling the temperatures of a plurality of aerosol-forming substrates, respectively, so that smoking articles provided with different aerosol-forming substrates can be inhaled at once.

[0195] According to the present invention, the composite heating aerosol generator senses the pressure change caused by the puffing action and turns the heating on and off according to the cumulative integral value of the amount of puffing action, thereby allowing for variable control of the heating time without being limited by the user's inhalation pattern.

Claims

1. An aerosol generating device for a disposable electrically heated smoking article, the aerosol generating device having a size that can be held and carried, the aerosol generating device comprising a first aerosol-forming substrate which is a liquid cartridge or a tobacco body, and a second aerosol-forming substrate which is a liquid cartridge or a tobacco body, arranged along a longitudinal direction of the first aerosol-forming substrate, the second aerosol-forming substrate being located upstream of the first aerosol-forming substrate, a cavity provided within the device into which a smoking article can be inserted; a first heating means provided within the device and capable of heating the interior or exterior of a first aerosol-forming substrate of the smoking article within a first temperature range; a second heating means provided within the device and capable of heating the interior or exterior of the second aerosol-forming substrate of the smoking article to a second temperature range different from the first temperature range; a first sensor and a second sensor provided within the device for sensing the temperatures of the first heating means and the second heating means, respectively; a rechargeable battery provided within the device and serving as a DC power source; a control unit provided in the device, electrically connected to the first sensor, the second sensor, and the battery, receiving DC power supplied from the battery, and controlling power supply to the first heating means and the second heating means according to the sensed values ​​of the first sensor and the second sensor, respectively; a) both the first heating means and the second heating means are induction heating type heaters, b) one of the first heating means and the second heating means is a resistance heating type heater and the other is an induction heating type heater, or c) both the first heating means and the second heating means are resistance heating type heaters, Each of the resistance heating heaters is a pipe heater having a pipe on the outside of which a heating resistor pattern or a planar heating element pattern is printed or provided, and each of the induction heating heaters is a susceptor pipe that reacts with an excitation coil and generates induction heat due to eddy current loss, thereby heating the smoking article from the outside. In the case of a), a first sensor and a second sensor are provided on the susceptor pipe as a sensor pattern, respectively, to sense the temperature of each susceptor pipe; In the case of b), a first sensor and a second sensor are provided as sensor patterns on the pipe heater or the susceptor pipe, respectively, to sense the temperature of each pipe heater or the susceptor pipe; In case c), a composite heating aerosol generating device is characterized in that the first sensor and the second sensor are each provided as a sensor pattern on the pipe heater, thereby sensing the temperature of each pipe heater.

2. A composite heating aerosol generating device as described in claim 1, characterized in that when the first aerosol-forming substrate or the second aerosol-forming substrate is a tobacco body, the tobacco body contains glycerin VG.

3. A composite heating aerosol generating device as described in claim 1, characterized in that when the first aerosol-forming substrate or the second aerosol-forming substrate is a liquid cartridge, the liquid cartridge contains a liquid or gel composition including glycerin VG.

4. The smoking article further comprises a filter and a tube, and the filter, the tube, the tobacco body and / or the liquid cartridge are wrapped in a single wrapping paper to form a composite heating aerosol generating device as described in any one of claims 1 to 3.

5. The composite heating aerosol generating device of claim 1, further comprising a pressure sensor provided within the device and electrically connected to the control unit, wherein the control unit calculates an integral value for the amount of puffing based on the sensing value input from the pressure sensor and controls the power supply to the first heating means and / or the second heating means based on the cumulative integral value.

6. If an induction heater is provided, The composite heating aerosol generating device of claim 1, further comprising a plurality of capacitor switches provided within the device and connected between the control unit and the excitation coil, wherein the control unit controls the frequency of the alternating current supplied to the excitation coil by controlling the on-off of at least one of the plurality of capacitor switches.

7. If an induction heater is provided, 2. The composite heating aerosol generating device according to claim 1, further comprising a sensor for detecting the inductance of the exciting coil.

8. If an induction heater is provided, 2. The composite heating aerosol generating device according to claim 1, further comprising a sensor for detecting the impedance of the excitation coil.

9. If an induction heater is provided, 2. The composite heating aerosol generating apparatus according to claim 1, further comprising a heat insulating portion provided between the susceptor and the excitation coil to prevent heat of the susceptor from being transferred to the excitation coil.

10. 10. The composite heating aerosol generator according to claim 9, wherein the heat insulating part is formed by attaching a heat insulating film using a heat insulating filler having a heat insulating shielding function to the outer wall of the heat insulating pipe.

11. 11. The composite heating aerosol generating device according to claim 10, wherein the heat insulating filler is made of ceramic powder.

12. If an induction heater is provided, 2. The composite heating aerosol generating apparatus according to claim 1, wherein the susceptor is made of at least one material selected from the group consisting of stainless steel, nickel, and cobalt.

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