Smoking cartridge heater

Abstract

To provide a heater for a smoking cartridge that can suitably generate an aerosol from the smoking cartridge. [Solution] A smoking cartridge heater (10) comprises a main housing (11) having a cylindrical storage recess (18) into which a smoking cartridge (1) is inserted, a first heater (12) arranged to surround the storage recess (18), and a second heater (13) arranged to protrude inward from the bottom of the storage recess (18), the first heater (12) heating the aerosol-forming substrate (3) of the smoking cartridge (1) from the outer periphery, and the second heater (13) coming into thermal contact with a susceptor (7) arranged within the aerosol-forming substrate (3) to heat the center of the aerosol-forming substrate (3).

Description

[Technical Field]

[0001] The present invention relates to a smoking cartridge heater capable of heating a smoking cartridge. [Background technology]

[0002] The smoking cartridge has an aerosol-forming substrate containing an aroma source material, such as a tobacco plant or a non-tobacco plant, and an aerosol former (aerosol-forming agent) that generates an aerosol when heated. Thus, the smoking cartridge generates an aroma when heated by a smoking cartridge heater.

[0003] The manner in which smoking cartridges are heated varies depending on the smoking cartridge heater used. For example, a susceptor made of a magnetic material is placed in an aerosol-forming substrate, and an alternating current magnetic field generated by a coil provided in the heater causes the susceptor to generate heat, thereby heating the aerosol-forming substrate. Patent Document 1, for example, discloses an example of such a smoking cartridge heater (induction heating device) equipped with an inductor coil capable of inductively heating the susceptor placed in the aerosol-forming substrate of the smoking cartridge. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6452709 Summary of the Invention [Problem to be solved by the invention]

[0005] The smoking cartridge heater described in Patent Document 1 is configured to place a spirally wound inductor coil around a storage recess into which the aerosol-forming substrate of the smoking cartridge is inserted, and to generate heat in a susceptor within the aerosol-forming substrate by an AC magnetic field emitted from the inductor coil. As a result, the heat generated by the susceptor heats the aerosol-forming substrate to a high temperature near its center, but the heat generated by the susceptor is not easily transmitted to the outer periphery of the aerosol-forming substrate that is distant from the susceptor, resulting in insufficient aerosol generation.

[0006] The present invention has been made in consideration of the current state of the prior art, and its purpose is to provide a heater for a smoking cartridge that can suitably generate aerosol from a smoking cartridge. [Means for solving the problem]

[0007] In order to achieve the above object, a heater for a smoking cartridge according to one aspect of the present invention is a heater for a smoking cartridge having a cylindrical exterior member, an aerosol-forming substrate housed in the exterior member, and a susceptor disposed within the aerosol-forming substrate, the heater comprising: a main housing having a storage recess into which the cylindrical smoking cartridge is inserted; a first heater disposed to surround the storage recess; and a second heater disposed to protrude from a bottom of the storage recess toward the inside of the storage recess, the first heater being capable of heating the aerosol-forming substrate of the smoking cartridge from the outer periphery; and the second heater being in direct contact with or heated by the susceptor within the aerosol-forming substrate. Arranged through a gap that allows heat transfer The present invention is characterized in that the heat contact is possible. [Effects of the Invention]

[0008] According to the smoking cartridge heater of the present invention, aerosol can be suitably generated from the smoking cartridge. [Brief explanation of the drawings]

[0009] [Figure 1]1 is a cross-sectional view of a smoking cartridge. [Figure 2] 1 is a cross-sectional view of a heater for a smoking cartridge according to an embodiment. [Figure 3] FIG. 2 is a block diagram showing the electrical configuration of the smoking cartridge heater. [Figure 4] FIG. 2 is an explanatory diagram showing the state in which the smoking cartridge heater is in use. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] FIG. 1 is a cross-sectional view of a smoking cartridge that can be used in a smoking cartridge heater according to the present invention.

[0012] As shown in Figure 1, the smoking cartridge 1 includes a cylindrical outer casing 2, an aerosol-forming substrate 3 housed at the tip end of the outer casing 2, a mouthpiece 4 housed at the base end of the outer casing 2, a support member 5 arranged between the aerosol-forming substrate 3 and the mouthpiece 4, a cover member 6 that closes the tip end of the outer casing 2, and a susceptor 7 arranged within the aerosol-forming substrate 3.

[0013] The exterior member 2 is formed in a cylindrical shape having a circular cross section, but is not limited to a cylindrical shape as long as it is cylindrical, and may be, for example, a cylindrical body having a polygonal cross section. The lid member 6, the aerosol-forming substrate 3, the support member 5, and the mouthpiece 4 are arranged along the axial direction of the exterior member 2 from the distal end side to the proximal end side.

[0014] The aerosol-forming substrate 3 is an aggregate of constituent elements in the form of, for example, a rod, a strip, a powder, granules, pellets, small pieces, a sheet, crimped fibers formed by crimping a sheet, a porous material, a block, or a paste. In this embodiment, the aerosol-forming substrate 3 is made of a large number of strip-shaped members made from tobacco plants or non-tobacco plants, and generates an aerosol when heated by the susceptor 7.

[0015] Specific examples of raw materials used as the aerosol-forming substrate 3 will be described. The aerosol-forming substrate 3 is made of any one or a combination of the following raw materials.

[0016] The aerosol-forming substrate 3 is made from tobacco plants or non-tobacco plants. Examples of tobacco plants include tobacco leaves, tobacco stems, expanded tobacco, and homogenized tobacco. Examples of non-tobacco plants include plants other than tobacco plants. Preferred parts of non-tobacco plants include leaves, pulp, seeds, roots (scale roots, tuberous roots, etc.), stems, tubers, skin (stem bark, bark, etc.), flowers (petals, stamens, pistils, etc.), trunks, branches, etc.

[0017] The aerosol-forming substrate 3 is prepared, for example, by mixing a dried and pulverized non-tobacco plant material with an aerosol former that generates an aerosol, microcrystalline cellulose, flavor additives, preservatives, binders, thickeners, etc., as appropriate, and then pulverizing or classifying the mixture to form powder or granules, or shaping it into a paste. Alternatively, the aerosol-forming substrate 3 may be formed into a sheet, which is then cut to a predetermined width and length to form strips, rods, or crimped shapes.

[0018] For example, when the non-tobacco plant part is a leaf, teas can be preferably used. Not only do different plants produce different teas, but even the same plant can produce different teas depending on the processing method. Specific examples include Japanese tea, black tea, Angelica keiskei tea, sweet tea, Gynostemma pentaphyllum tea, aloe tea, ginkgo leaf tea, oolong tea, turmeric tea, Quercus salicina tea, Eleuthero tea, plantain tea, persimmon leaf tea, chamomile tea, chamomile tea, Kawara ketsumei tea, quince tea, chrysanthemum tea, gymnema tea, guava tea, wolfberry tea, soft leaf tea, black bean tea, Gennoshoko tea, brown rice tea, burdock tea, comfrey tea, bifu tea, cherry blossom tea, and sakura tea. Examples include flan tea, shiitake mushroom tea, perilla tea, jasmine tea, ginger tea, horsetail tea, red pepper tea, Swertia japonica tea, buckwheat tea, elm tea, dandelion tea, sweet tea, Houttuynia cordata tea, Eucommia tea, sword bean tea, elderberry tea, Licorice tea, Job's tears tea, Habu tea, loquat leaf tea, Pu'er tea, safflower tea, pine needle tea, yerba mate tea, barley tea, Megusuri tea, Mugwort tea, eucalyptus tea, Monk fruit tea, rooibos tea, and bitter melon tea. Used tea leaves can also be used for these teas. Using used tea leaves allows for the effective reuse of expensive teas.

[0019] Furthermore, extracts of the above-mentioned non-tobacco plants, so-called extracts and processed products, can also be used. The extracts may be in the form of liquid, starch syrup, powder, granules, solution, etc.

[0020] Examples of aerosol formers as raw materials for the aerosol-forming substrate 3 include glycerin, propylene glycol, sorbitol, triethylene glycol, lactic acid, diacetin (glycerin diacetate), triacetin (glycerin triacetate), triethylene glycol diacetate, triethyl citrate, isopropyl myristate, methyl stearate, dimethyl dodecanedionate, dimethyl tetradecanedione, etc. Among these, glycerin and propylene glycol are preferred.

[0021] Microcrystalline cellulose as a raw material for the aerosol-forming substrate 3 is obtained, for example, by partially depolymerizing α-cellulose obtained from the pulp of a fibrous plant with an acid, and is obtained by removing the soluble portion from the cellulose and, if necessary, crystallizing the insoluble portion.

[0022] The microcrystalline cellulose may be in the form of powder or may be dispersed in a solvent such as water to form a suspension. In this case, a high-speed stirrer or a high-pressure homogenizer can be used to disperse the microcrystalline cellulose in the solvent.

[0023] Furthermore, if necessary, a flavor additive that adds flavor is also preferably used as a raw material for the aerosol-forming substrate 3. Examples of flavor additives include mint, cocoa, coffee, and black tea extracts, and powder of catechins from tea extracts. Preservatives that are used in food are preferred, and examples include sorbic acid, potassium sorbate, benzoic acid, and sodium benzoate.

[0024] The aerosol-forming substrate 3 may contain menthol and a water-insoluble crosslinked polymer (preferably polyvinylpolypyrrolidone). By combining menthol with a water-insoluble crosslinked polymer, sublimation of menthol can be effectively suppressed, and the menthol flavor can be maintained for a long period of time. Here, menthol is not limited to that obtained from natural products, but may also be a synthetic product. Peppermint, mint, peppermint oil, and other menthol-containing substances may also be used.

[0025] The flavor additive is provided in the mouthpiece 4, for example, by impregnating the wall of the mouthpiece 4. The manner in which the flavor additive is provided in the mouthpiece 4 is not limited to this, and for example, the flavor additive may be provided in the mouthpiece 4 by embedding a capsule in which the flavor additive is encapsulated in the wall of the mouthpiece 4. Alternatively, a capsule in which the flavor additive is encapsulated may be disposed between the mouthpiece 4 and the aerosol-forming substrate 3. When the flavor additive is encapsulated in a capsule, the smoker can break the capsule by pressing it with his or her finger, allowing the aromatic component of the flavor additive to volatilize at a desired time.

[0026] Examples of binders or thickeners that can be used as raw materials for the aerosol-forming substrate 3 include gums such as guar gum, xanthan gum, gum arabic, and locust bean gum; cellulose binders such as hydroxypropyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, and ethyl cellulose; polysaccharides such as starch, organic acids such as alginic acid, sodium alginate, sodium carboxymethyl cellulose, caranagin, agar, and conjugate base salts of organic acids such as pectin; and combinations thereof.

[0027] The susceptor 7 is made of a magnetic material formed into a sheet shape and is disposed at the axial center of the aerosol-forming substrate 3. Examples of materials for the susceptor 7 include iron, nickel, cobalt, ferrite, and neodymium. The susceptor 7 is induction-heated by an AC magnetic field generated by a smoking cartridge heater, and is heated to a temperature of, for example, 400°C or less.

[0028] The mouthpiece 4 is a part that constitutes the mouthpiece of the smoking cartridge 1 and is made of, for example, paper. The mouthpiece 4 may also include a cellulose acetate filter that removes fine particles. Some of the fine particles in the water vapor and aerosol generated by the aerosol-forming substrate 3 are filtered by the filter of the mouthpiece 4.

[0029] The support member 5 is a cylindrical, axial body, and may be, for example, a cylindrically wound piece of paper, a polymer sheet, a rubber sheet, a metal sheet, or the like, a single piece made of silicone rubber, or a hollow, three-dimensional cylindrical tube made of cellulose-based fibers. One end of the support member 5 abuts against the aerosol-forming substrate 3, and the other end abuts against the mouthpiece 4, thereby restricting the axial movement of the aerosol-forming substrate 3. Note that the support member 5 is not limited to a cylindrical shape, and may be a plate, a rod, or the like, as long as it has a shape that can support the smoking cartridge 1.

[0030] The lid member 6 is a disk-shaped or cylindrical member that closes the tip of the exterior member 2, and is made of a material that allows air to flow through, such as paper. The lid member 6 is fixed to the inner circumferential surface of the exterior member 2 by a fixing means such as adhesive or press-fitting, and has the function of allowing air to pass from the outside of the smoking cartridge 1 toward the aerosol-forming substrate 3. Such a lid member 6 prevents the aerosol-forming substrate 3 from falling off the exterior member 2, but the lid member 6 may be omitted, and one end of the aerosol-forming substrate 3 may be exposed from the tip of the exterior member.

[0031] FIG. 2 is a cross-sectional view of the smoking cartridge heater according to the embodiment, and FIG. 3 is a block diagram showing the electrical configuration of the smoking cartridge heater.

[0032] As shown in Figure 2, the smoking cartridge heater 10 of the embodiment includes a main body housing 11, a first heater 12, a second heater 13, a battery 14, an input unit 15, a display unit 16, and a control unit 17.

[0033] The main body housing 11 is a member that constitutes the outer shell of the heater and is formed in a substantially rectangular parallelepiped shape. However, the shape of the main body housing 11 is not limited to this and may be formed, for example, in a cylindrical or prismatic shape. A cylindrical storage recess 18 is formed on the upper surface of the main body housing 11, and the portion of the smoking cartridge 1 that includes the aerosol-forming substrate 3 is adapted to be inserted into this storage recess 18.

[0034] The first heater 12 is a resistance heater that utilizes Joule heat and generates heat when power is supplied from a power supply circuit powered by a battery 14. The first heater 12 is disposed so as to surround the storage recess 18, and in this embodiment, a spirally wound coil heater is used. Note that the first heater 12 is not limited to a coil heater; it can also be a cylindrical ceramic heater formed by coating an electric heating wire with ceramic, or a cylindrical film heater formed by forming a pattern of an electric heating wire on the circumferential surface of a highly heat-resistant film. Because the first heater 12 is disposed so as to surround the storage recess 18, when the aerosol-forming substrate 3 of the smoking cartridge 1 is inserted into the storage recess 18, the heat generated by the first heater 12 heats the aerosol-forming substrate 3 from the outer periphery.

[0035] The second heater 13 is disposed so as to protrude from the bottom of the storage recess 18 into the interior of the storage recess 18. The second heater 13 has a pin-shaped actuating portion 13a extending along the axial direction of the storage recess 18, a disk-shaped base portion 13b that supports the actuating portion 13a, and a heat source 19 provided below the base portion 13b. Two actuating portions 13a of the second heater 13 are disposed near the axial center of the storage recess 18, and these two actuating portions 13a have different lengths. However, the two actuating portions 13a may have the same length. Furthermore, the number of actuating portions 13a is not limited to two, and may be one or three or more.

[0036] The second heater 13 (operating portion 13a and base portion 13b) is made of a metal material such as aluminum or stainless steel, or a ceramic or highly heat-resistant resin material. The second heater 13 is heated by a heat source 19 disposed below the base portion 13b. The heat source 19 is a resistance heating type heater that uses heat generated by Joule heat, and generates heat by receiving power from a power supply circuit powered by a battery 14. The second heater 13 itself may also be a resistance heating source.

[0037] The second heater 13 may have a temperature sensor, in which case it can efficiently sense the temperature of the susceptor 7. Furthermore, the first heater 12 and the second heater 13 may each have a temperature sensor, in which case the temperature sensor of the first heater 12 and the temperature sensor of the second heater 13 sense temperature changes at the outer periphery and the center of the aerosol-forming substrate 3, and the control circuit controls the power to each of the heaters 12 and 13, thereby making it possible to further optimize heating of the aerosol-forming substrate 3.

[0038] When the aerosol-forming substrate 3 of the smoking cartridge 1 is inserted into the storage recess 18, the operating part 13a of the second heater 13 enters the inside of the aerosol-forming substrate 3 and is able to make thermal contact with the susceptor 7 arranged near the center of the aerosol-forming substrate 3. Here, thermal contact includes not only the case where the operating part 13a is in direct contact with the susceptor 7 and heat is transferred, but also the case where the operating part 13a is in close proximity to the susceptor 7 with a slight gap therebetween and heat is transferred. Therefore, when the aerosol-forming substrate 3 of the smoking cartridge 1 is inserted into the storage recess 18, the aerosol-forming substrate 3 is heated from the center by the heat generated by the second heater 13.

[0039] As shown in FIG. 3, the smoking cartridge heater 10 includes a first heater 12, a second heater 13, an input unit 15, a display unit 16, and a control unit 17.

[0040] The input section 15 has a plurality of switches, and in this embodiment has three switches, namely, first to third switches 20, 21, and 22.

[0041] The first switch 20 is an operation sequence setting means capable of setting the operation sequence of the first heater 12 and the second heater 13, and can, for example, operate the first heater 12 and the second heater 13 simultaneously or alternately operate the first heater 12 and the second heater 13 with a time lag. The second switch 21 is a first temperature setting means capable of setting the heating temperature of the first heater 12, and can, for example, switch the heating temperature of the first heater 12 between three levels: high, medium, and low. The third switch 22 is a second temperature setting means capable of setting the heating temperature of the second heater 13, and can, for example, switch the heating temperature of the second heater 13 between three levels: high, medium, and low.

[0042] The control unit 17 is electrically connected to the first to third switches 20, 21, and 22, and is configured to receive input signals from the first to third switches 20, 21, and 22. The control unit 17 includes a memory unit 23, which stores a plurality of heating control patterns corresponding to the input signals from the first to third switches 20, 21, and 22. The first heater 12 and the second heater 13 are operated based on input operations using the first to third switches 20, 21, and 22 and the heating control patterns stored in the memory unit 23.

[0043] The display unit 16 is made up of a liquid crystal panel, an organic EL panel, or the like, and displays information input by the input unit 15, the charging state of the battery 14, and the like.

[0044] FIG. 4 is an explanatory diagram showing the smoking cartridge heater 10 configured as described above in use.

[0045] When a smoker smokes, the smoking cartridge 1 is inserted into the storage recess 18 of the smoking cartridge heater 10, as shown in Fig. 4. As a result, the aerosol-forming substrate 3 of the smoking cartridge 1 is surrounded by the first heater 12, and the operating part 13a of the second heater 13 enters the inside of the aerosol-forming substrate 3 and comes into contact with or close to the susceptor 7. Then, when the power switch (not shown) is turned on in this state, the first heater 12 and the second heater 13 begin to generate heat by being supplied with electricity.

[0046] As a result, the outer periphery of the aerosol-forming substrate 3 is heated by the heat generated by the first heater 12, and the susceptor 7 in the aerosol-forming substrate 3 is in thermal contact with the operating portion 13a of the second heater 13, so that the center of the aerosol-forming substrate 3 is heated by both the heat transferred from the susceptor 7 and the heat generated by the second heater 13. In this way, the aerosol-forming substrate 3 is heated from both the center and the outer periphery, eliminating uneven heating of the aerosol-forming substrate 3 and generating a sufficient amount of aerosol. In this state, the smoker can enjoy smoking by holding the mouthpiece 4 between his or her mouth and inhaling the aerosol.

[0047] In this case, as will be described below, the first to third switches 20, 21, and 22 of the input unit 15 can be used to arbitrarily set the manner in which the first heater 12 and the second heater 13 are operated.

[0048] When the first switch 20 is turned on, for example, the display unit 16 displays the options "high flavor" and "long duration." When the first switch 20 is operated to select "high flavor," the first heater 12 and the second heater 13 are simultaneously operated to generate heat based on the heating control pattern stored in the memory unit 23, thereby enabling the maximum amount of aerosol to be generated from the aerosol-forming substrate 3. On the other hand, when the first switch 20 is operated to select "long duration," the first heater 12 and the second heater 13 are alternately operated to generate heat with a time lag based on the heating control pattern stored in the memory unit 23, enabling the aerosol-forming substrate 3 to be heated for a long period of time.

[0049] Furthermore, when the second switch 21 is turned on, for example, the options "strong," "medium," and "weak" are displayed on the display unit 16. When one of the options "strong," "medium," and "weak" is selected by operating the second switch 21, the heating temperature of the first heater 12 is changed based on the heating control pattern stored in the memory unit 23, so that the heating temperature of the outer periphery of the aerosol-forming substrate 3 can be set to one of three levels: strong, medium, and weak.

[0050] Furthermore, when the third switch 22 is turned on, for example, the options "strong," "medium," and "weak" are displayed on the display unit 16. When one of the options "strong," "medium," and "weak" is selected by operating the third switch 22, the heating temperature of the second heater 13 in thermal contact with the susceptor 7 is changed based on the heating control pattern stored in the memory unit 23, so that the heating temperature of the center portion of the aerosol-forming substrate 3 can be set to one of three levels: strong, medium, and weak.

[0051] In this way, the heating temperatures of the first heater 12 and the second heater 13 can be set individually using the first switch 20 and the second switch 21, so that the heating temperature can be set according to the smoker's preference, for example, by heating the outer periphery of the aerosol-forming substrate 3 at a higher temperature than the center, or by heating both the center and the outer periphery of the aerosol-forming substrate 3 at a lower temperature.

[0052] When smoking a smoking cartridge that does not have a susceptor 7, there is no thermal contact between the second heater 13 and the susceptor 7, but in this case too, the center of the aerosol-forming substrate 3 is heated by the heat generated by the second heater 13, so the aerosol-forming substrate 3 can be heated from both the center and the outer periphery.

[0053] As described above, the smoking cartridge heater 10 according to the embodiment includes a main body housing 11 having a cylindrical storage recess 18 into which the smoking cartridge 1 is inserted, a first heater 12 arranged to surround the storage recess 18, and a second heater 13 arranged to protrude inward from the bottom of the storage recess 18. The first heater 12 is capable of heating the aerosol-forming substrate 3 of the smoking cartridge 1 from the outer periphery, and the second heater 13 is capable of heating the susceptor 7 arranged within the aerosol-forming substrate 3. Direct contact or close proximity to theTherefore, the outer periphery of the aerosol-forming substrate 3 is heated by the heat generated by the first heater 12, and the heat generated by the second heater 13 is expanded and diffused because the susceptor 7 also serves as a heat source, so that the center of the aerosol-forming substrate 3 is heated by the heat generated by both the susceptor 7 and the second heater 13. This makes it possible to prevent uneven heating between the center and outer periphery of the aerosol-forming substrate 3 and ensure a sufficient amount of aerosol generation.

[0054] In addition, in the smoking cartridge heater 10 of the embodiment, the second heater 13 has a pin-shaped operating part 13a extending along the axial direction of the storage recess 18, a disk-shaped base part 13b supporting the operating part 13a, and a heat source 19 provided below the base part 13b, so that the second heater 13 can be easily made to generate heat by the heat source 19 provided outside the storage recess 18.

[0055] In addition, the smoking cartridge heater 10 according to the embodiment is equipped with an operation sequence setting means (first switch 20) that can set the operation sequence of the first heater 12 and the second heater 13. Therefore, by operating the first heater 12 and the second heater 13 simultaneously, the generation of aerosol generated from the aerosol-forming substrate 3 can be maximized, or by operating the first heater 12 and the second heater 13 alternately with a time lag, the aerosol-forming substrate 3 can be heated for a long period of time.

[0056] In addition, the smoking cartridge heater 10 of the embodiment is equipped with a first temperature setting means (second switch 21) that can set the heating temperature of the first heater 12, so that the heating temperature of the outer periphery of the aerosol-forming substrate 3 can be set in multiple stages (for example, three stages: strong, medium, and weak).

[0057] Furthermore, the smoking cartridge heater 10 according to the embodiment includes a second temperature setting means (third switch 22) that can set the heating temperature of the second heater 13 that is in thermal contact with the susceptor 7, so that the heating temperature of the central portion of the aerosol-forming substrate 3 can be set to one of three levels: strong, medium, and weak. Furthermore, the heating temperatures of the first heater 12 and the second heater 13 can be set individually using the first switch 20 and the second switch 21, so that the heating temperature can be set according to the smoker's preference, for example, by heating the outer periphery of the aerosol-forming substrate 3 at a higher temperature than the central portion, or by heating both the central and outer periphery of the aerosol-forming substrate 3 at a lower temperature.

[0058] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist of the present invention. The present invention covers all technical matters included in the technical ideas described in the claims. The above-described embodiments are preferred examples, but a person skilled in the art can realize various alternatives, modifications, variations, or improvements from the contents disclosed in this specification, and these are included in the technical scope described in the appended claims. [Explanation of symbols]

[0059] 1 smoking cartridge 2 Exterior materials 3. Aerosol-forming substrate 4 mouthpieces 5 Support member 6 Lid member 7 Susceptor 10. Smoking cartridge heater 11 Main body housing 12 First heater 13 Second heater 13a Operating part 13b Base 14 Battery 15 Input section 16 Display section 17 Control Unit 18 Storage recess 19 Heating source 20 First switch (operation sequence setting means) 21 Second switch (first temperature setting means) 22 Third switch (second temperature setting means) 23 Memory section

Claims

1. A heater for a smoking cartridge having a cylindrical outer member, an aerosol-forming substrate housed in the outer member, and a susceptor disposed within the aerosol-forming substrate, a main body housing having a storage recess into which a cylindrical smoking cartridge is inserted; a first heater disposed so as to surround the storage recess; a second heater disposed so as to protrude from the bottom of the storage recess toward the inside of the storage recess; Equipped with the first heater is capable of heating the aerosol-forming substrate of the smoking cartridge from an outer circumferential side; the second heater is in direct contact with the susceptor in the aerosol-forming substrate or is disposed via a gap allowing thermal communication therebetween and is in thermal contact with the susceptor in the aerosol-forming substrate; A heater for smoking cartridges.

2. 2. The smoking cartridge heater according to claim 1, The first heater is a spirally wound resistance heating coil heater. A heater for smoking cartridges.

3. 2. The smoking cartridge heater according to claim 1, the first heater is a cylindrical resistance heater concentrically arranged around the storage recess; A heater for smoking cartridges.

4. 2. The smoking cartridge heater according to claim 1, The second heater has a pin-shaped actuating portion that protrudes into the storage recess, and a heat source that heats the actuating portion. A heater for smoking cartridges.

5. 5. The smoking cartridge heater according to claim 4, a plurality of the actuating portions are arranged so as to be in thermal contact with the susceptor; A heater for smoking cartridges.

6. 2. The smoking cartridge heater according to claim 1, the main body housing has an operation sequence setting means capable of setting an operation sequence of the first heater and the second heater; A heater for smoking cartridges.

7. 2. The smoking cartridge heater according to claim 1, the main body housing has a temperature setting means capable of setting the heating temperatures of the first heater and the second heater; A heater for smoking cartridges.

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