Aerosol-generating device

Abstract

Provided is an aerosol-generating device with which it is possible to measure the temperature of a heat-generating unit with higher accuracy. This aerosol-generating device is provided with: a housing space in which an aerosol-generating substrate is housed; a heat-insulating structure having a cylindrical structure, the inner surface of the cylindrical structure facing the accommodation space; a heat-generating part provided on a part of the inner surface of the heat-insulating structure; and a temperature detection unit provided inside the heat-insulating structure so as to correspond to the heat-generating unit.

Description

Technical Field

[0001] The present invention relates to an aerosol generating device. Background Art

[0002] Inhalation devices such as electronic cigarettes and atomizers that generate substances to be inhaled by users have become widely popular. The inhalation device can generate aerosol by heating an aerosol source. Thus, the user can enjoy the fragrance of the aerosol by inhaling the aerosol generated by the inhalation device.

[0003] For example, the suction device can generate aerosol from the aerosol generating substrate by peripherally heating the aerosol generating substrate including the aerosol source. However, when the aerosol generating substrate is heated from the periphery, the heat used for heating is conducted to the frame of the suction device and transferred to the hand of the user holding the suction device, which may cause the user to feel uncomfortable. Therefore, in a peripherally heated suction device, a heat insulating structure that suppresses the conduction of heat to the frame becomes important.

[0004] For example, Patent Document 1 listed below discloses a smoking material heating device that suppresses heat conduction to a frame by providing a heat insulating region so as to surround a heating region.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application No. 2020-532977 Summary of the invention

[0008] Technical problem to be solved by the invention

[0009] However, in the device disclosed in Patent Document 1, since the heating region for heating the aerosol generating substrate is covered by the heat insulating region, it is difficult to directly measure the temperature of the heating region. Therefore, in the device disclosed in Patent Document 1, it is difficult to measure the temperature of the heating region with high accuracy.

[0010] Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a novel and improved aerosol generating device capable of measuring the temperature of a heating portion with higher accuracy.

[0011] Technical solutions for solving technical problems

[0012] In order to solve the above-mentioned problems, according to a certain aspect of the present invention, there is provided an aerosol generating device, comprising: a containing space which contains an aerosol generating substrate; a thermal insulation structure having a cylindrical structure with the inner side surface of the cylindrical structure facing the containing space; a heating part which is arranged on a part of the inner side surface of the thermal insulation structure; and a temperature detection part which is arranged inside the thermal insulation structure corresponding to the heating part.

[0013] The heat generating unit may generate heat by induction heating based on a varying magnetic field, and the temperature detecting unit may be provided corresponding to an electromagnetic induction source that generates the varying magnetic field.

[0014] The heat insulating structure may include: a first member facing the housing space; and a second member covering an outer side surface of the first member and forming a sealed space between the second member and the first member.

[0015] The first member and the second member may be made of different materials.

[0016] The first member and the second member may be joined to each other by brazing.

[0017] The temperature detection unit may be provided inside the sealed space of the heat insulating structure.

[0018] The interior of the sealed space may also be in a vacuum state.

[0019] A portion of the first member may generate heat by induction heating, thereby functioning as the heat generating portion.

[0020] The temperature detection portion may be fixed to the first member functioning as the heat generating portion by a thermosetting adhesive.

[0021] The temperature detection unit may detect the temperature of the heat generating unit.

[0022] The temperature detection unit may include a thermocouple.

[0023] An air flow conveying the aerosol generated from the aerosol generating substrate may flow through the housing space, and a heat-resistant cable extending upstream of the air flow and led out to the outside of the thermal insulation structure may be connected to the thermocouple.

[0024] Effects of the Invention

[0025] As described above, according to the present invention, the temperature of the heat generating portion can be measured with higher accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram showing a configuration example of a suction device according to one embodiment of the present invention.

[0027] Figure 2 It is a schematic cross-sectional view showing the structure of a holding portion included in the suction device.

[0028] Figure 3 It is a schematic cross-sectional view showing the structure of a holding portion according to a modified example. DETAILED DESCRIPTION

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. In addition, in this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and repeated descriptions are omitted.

[0030] <1. Composition of suction device>

[0031] First, refer to Figure 1 , a configuration example of a suction device according to an embodiment of the present invention is described. Figure 1 It is a schematic diagram showing a configuration example of the suction device 100 according to the present embodiment.

[0032] like Figure 1 As shown, the suction device 100 includes, for example, a power supply unit 111 , a sensor unit 112 , a notification unit 113 , a storage unit 114 , a communication unit 115 , a control unit 116 , an electromagnetic induction source 162 , and a holding unit 140 .

[0033] The suction device 100 of this embodiment performs induction heating (IH) on the rod-shaped substrate 150 containing the aerosol source while the rod-shaped substrate 150 is held in the holding portion 140. As a result, the aerosol source contained in the rod-shaped substrate 150 is atomized, and an aerosol is generated from the rod-shaped substrate 150, and the generated aerosol is inhaled by the user.

[0034] In addition, the inhalation device 100 cooperates with the rod-shaped substrate 150 to generate an aerosol that is inhaled by the user. Therefore, the combination of the inhalation device 100 and the rod-shaped substrate 150 can be regarded as an aerosol generating system.

[0035] The power supply unit 111 stores electric power and supplies electric power to each component of the suction device 100. The power supply unit 111 may be composed of a secondary battery that can be charged and discharged, such as a lithium-ion secondary battery. The power supply unit 111 may also be charged by connecting to an external power source using a USB (Universal Serial Bus) cable or the like. In addition, the power supply unit 111 may also be charged using a wireless power transmission technology through a power transmission device that is not directly connected. Moreover, the power supply unit 111 may be configured to be removable from the suction device 100, or may be configured to be replaceable with a new power supply unit 111.

[0036] The sensor unit 112 detects various information related to the suction device 100, and outputs the detected information to the control unit 116. As an example, the sensor unit 112 may also be composed of a pressure sensor such as a condenser microphone, a flow sensor, or a temperature sensor. In this case, when the sensor unit 112 detects a numerical value accompanying the user's suction, the information indicating that the user has sucked can be output to the control unit 116. As another example, the sensor unit 112 may be composed of an input device such as a button or switch that accepts input of information from the user, for example, it may also be composed of a button that indicates the start / stop of the generation of aerosol. In this case, the sensor unit 112 may output the information input by the user to the control unit 116. As another example, the sensor unit 112 may also be composed of a temperature sensor that detects the temperature of the heating portion that heats the rod-shaped substrate 150. The temperature sensor may also detect the temperature of the heating portion based on the resistance value of the electromagnetic induction source 162, for example. In this case, the sensor unit 112 can detect the temperature of the rod-shaped substrate 150 held by the holding unit 140 based on the temperature of the heating portion.

[0037] The notification unit 113 notifies the user of information. As an example, the notification unit 113 may also be composed of a light emitting device such as an LED (Light Emitting Diode). Accordingly, the notification unit 113 can emit light in different light emitting modes when the power supply unit 111 is in a state of needing to be charged, when the power supply unit 111 is being charged, or when an abnormality occurs in the suction device 100. The light emitting mode here is a concept including color and timing of lighting / extinguishing. The notification unit 113 is composed of a display device that displays an image, a sound output device that outputs sound, or a vibration device that vibrates together with or instead of the light emitting device. In addition, the notification unit 113 may also notify the user of information that the user can absorb. The information that the user can absorb is notified to the user, for example, when the temperature of the induction-heated rod-shaped substrate 150 reaches a specified temperature.

[0038] The storage unit 114 stores various information used for the operation of the suction device 100. The storage unit 114 is composed of a non-volatile storage medium such as a flash memory. An example of the information stored in the storage unit 114 is information related to the OS (Operating System) of the suction device 100, such as the control content of the control unit 116 on various components. Another example of the information stored in the storage unit 114 is information related to the suction of the user, such as the number of suction times, suction time, or suction time accumulation.

[0039] The communication unit 115 is a communication interface for sending and receiving information between the suction device 100 and other devices. The communication unit 115 can communicate in accordance with any wired or wireless communication standard. As such a communication standard, for example, a wireless LAN (Local Area Network), a wired LAN, Wi-Fi (registered trademark), or Bluetooth (registered trademark) can be used. As an example, the communication unit 115 can also send information related to the user's suction to the smartphone in order to display the information related to the user's suction on the smartphone. As another example, the communication unit 115 can also receive new OS information from the server in order to update the OS information stored in the storage unit 114.

[0040] The control unit 116 functions as a processing unit and a control unit, and controls the overall action in the suction device 100 according to various programs. The control unit 116 can also be implemented by electronic circuits such as a CPU (Central Processing Unit) or a microprocessor. In addition, the control unit 116 can also include a ROM (Read Only Memory) that stores the used programs and operation parameters, etc., and a RAM (Random Access Memory) that temporarily stores the parameters that are appropriately changed.

[0041] Specifically, the control unit 116 may also control the execution of various processes related to the operation of the suction device 100. For example, the control unit 116 may also control the execution of processes such as the supply of power from the power supply unit 111 to other components, the charging of the power supply unit 111, the detection of information by the sensor unit 112, the notification of information by the notification unit 113, the storage or reading of information by the storage unit 114, and the transmission and reception of information by the communication unit 115. In addition, the control unit 116 may also control the input of information to each component and the execution of processes based on information output from each component, etc., which are executed by the suction device 100.

[0042] The holding part 140 has a housing space 141 and an opening 142 that connects the housing space 141 to the outside, and holds the rod-shaped substrate 150 inserted into the housing space 141 from the opening 142. Specifically, the holding part 140 may be formed in a cylindrical shape with the opening 142 and the bottom 143 as the bottom surface, and the columnar housing space 141 is divided by the side surface. The holding part 140 is formed so that the inner diameter of at least a part of the height direction of the cylindrical shape is smaller than the outer diameter of the rod-shaped substrate 150, so that the rod-shaped substrate 150 inserted into the housing space 141 can be pressed from the outer periphery to hold it. In addition, the holding part 140 also has a function of dividing the flow path of air passing through the rod-shaped substrate 150. The air inlet into the flow path, that is, the air inflow hole, is arranged, for example, at the bottom 143. The air outlet from the flow path, that is, the air outflow hole, is the opening 142.

[0043] Moreover, a part of the holding portion 140 also functions as a heating portion. For example, when the inner wall of the holding portion 140 facing the storage space 141 is made of a material that generates heat by electromagnetic induction from the electromagnetic induction source 162 , the holding portion 140 can heat the rod-shaped substrate 150 by induction heating from the electromagnetic induction source 162 .

[0044] The rod-shaped substrate 150 is a rod-shaped component containing an aerosol source. The aerosol source is atomized by being heated to generate an aerosol. The aerosol source can be, for example, a processed product derived from tobacco, or a processed product obtained by forming tobacco shreds or tobacco raw materials into granules, sheets, or powders. In addition, the aerosol source can also contain non-tobacco-derived components generated from plants other than tobacco (such as mint and vanilla, etc.). As an example, the aerosol source can also contain flavoring components. In the case where the inhalation device 100 is a medical inhaler, the aerosol source can also contain a medicament for inhalation by the patient. The aerosol source is not limited to solids, and can also be, for example, polyols such as glycerin and propylene glycol and liquids such as water. The area of ​​the rod-shaped substrate 150 containing the aerosol source is accommodated in the accommodation space 141 of the holding portion 140 when the rod-shaped substrate 150 is held in the holding portion 140.

[0045] In addition, at least a portion of the rod-shaped substrate 150 protrudes from the opening 142 while the rod-shaped substrate 150 is held in the holding portion 140. The user holds one end of the rod-shaped substrate 150 protruding from the opening 142 and inhales, so that air flows into the inside of the holding portion 140 from the air inflow hole (not shown). The inflowing air passes through the accommodation space 141 of the holding portion 140 and reaches the user's mouth together with the aerosol generated from the rod-shaped substrate 150.

[0046] The electromagnetic induction source 162 is provided at the outer side of the holding portion 140 along the insertion direction of the rod-shaped substrate 150. The electromagnetic induction source 162 is supplied with an alternating current from the power supply unit 111, so that a variable magnetic field can be generated at a position overlapping with a part of the holding portion 140. Accordingly, the electromagnetic induction source 162 generates an eddy current in the holding portion 140 functioning as a heating portion by electromagnetic induction, thereby generating Joule heat in the holding portion 140. In addition, the electromagnetic induction source 162 generates hysteresis loss due to electromagnetic induction in the holding portion 140 functioning as a heating portion, thereby generating heat in the holding portion 140. The heat generated by the holding portion 140 generates an aerosol by heating the aerosol source contained in the rod-shaped substrate 150.

[0047] For example, when the sensor unit 112 detects that a predetermined user input has been made, the suction device 100 may supply power to the electromagnetic induction source 162 to induction heat the aerosol source contained in the rod-shaped substrate 150, thereby generating an aerosol. When the temperature of the aerosol source reaches a predetermined temperature, the suction device 100 allows the user to suck. Thereafter, when the sensor unit 112 detects that a predetermined user input has been made, the suction device 100 may stop supplying power to the electromagnetic induction source 162. In addition, for example, the suction device 100 may supply power to the electromagnetic induction source 162 and generate an aerosol while the sensor unit 112 detects that the user has sucked.

[0048] In the suction device 100 of the present embodiment, a part of the holding portion 140 functions as a heat generating portion and also functions as a heat insulating element that suppresses the conduction of heat generated by the heat generating portion to the frame. Specifically, the inner side surface of the holding portion 140 facing the receiving space 141 is made of a material that is inductively heated, and a heat insulating structure is formed between the inner side surface and the outer side surface. Accordingly, the suction device 100 can use the holding portion 140 to realize a heat insulating structure that heats the heat generating portion of the rod-shaped substrate 150 from the periphery and suppresses the conduction of heat from the heat generating portion, thereby making the device as a whole miniaturized.

[0049] Furthermore, the suction device 100 of this embodiment provides a temperature detection unit inside the heat insulating structure at a position corresponding to a portion of the region of the holding portion 140 that functions as a heat generating unit. Thus, the suction device 100 can directly measure the temperature of the heat generating unit by the temperature detection unit without being affected by the heat insulating function of the heat insulating structure.

[0050] <2. Structure of the holding unit>

[0051] Next, refer to Figure 2 , the holding portion 140 included in the suction device 100 of the present embodiment will be described in more detail. Figure 2It is a schematic cross-sectional view showing the structure of the holding unit 140 included in the suction device 100 .

[0052] like Figure 2 As shown, the holding portion 140 includes a first component 171 , a second component 172 , and a temperature detection portion 181 .

[0053] The first member 171 has a cylindrical structure with the inner side facing the housing space 141 housing the rod-shaped substrate 150. The first member 171 is made of a material that can be inductively heated by a changing magnetic field, and thus functions as a heat-sensitive body that heats the rod-shaped substrate 150. For example, the first member 171 can be made of a ferromagnetic body such as iron, nickel, or cobalt that is relatively easy to be inductively heated, or can be made of an alloy or compound mainly composed of these ferromagnetic bodies.

[0054] The second component 172 has a cylindrical structure covering the first component 171, and forms a sealed space 173 between the second component 172 and the outer side surface of the first component 171. The inside of the sealed space 173 may be a vacuum space of 10-2 Pa or less, for example. Accordingly, the holding portion 140 can suppress the conduction of heat from the first component 171 to the second component 172 through the vacuum insulation of the sealed space 173. The second component 172 may be made of any material as long as it can be bonded to the first component 171, and may be made of a material different from that of the first component 171.

[0055] The first component 171 and the second component 172 are joined to each other at the joints 174 at both ends of their respective cylindrical structures, thereby forming a sealed space 173. Specifically, in the joint 174, both ends of the cylindrical structure of the second component 172 are bent twice in a manner to form a step toward the outer side surface of the first component 171, and the front end of the formed step is joined to the outer side surface of the first component 171. Thus, between the first component 171 and the second component 172, the sealed space 173 is formed in a cylindrical shape in a manner covering the first component 171. When the first component 171 and the second component 172 are joined in a manner to form a step on the second component 172 side, the holding portion 140 can further improve the close contact between the first component 171 as the heat generating portion and the rod-shaped base material 150.

[0056] Such a joint 174 can be formed, for example, by the following method. First, after processing both ends of the cylindrical structure of the second member 172 to form a step, the first member 171 is inserted into the inner side of the second member 172 coated with an adhesive or a sealant at the step. Next, after the first member 171 and the second member 172 are bonded at one end coated with an adhesive by brazing or the like, the inside of the sealed space 173 is evacuated from the other end coated with a sealant. Thereafter, the other end coated with a sealant is sealed by brazing or the like.

[0057] The temperature detection portion 181 is provided inside the sealed space 173 between the first member 171 and the second member 172 so as to correspond to the heat generation region 162S of the first member 171 which is inductively heated.

[0058] The heating region 162S is a region where the variable magnetic field generated by the electromagnetic induction source 162 is superimposed on the first member 171. The first member 171 superimposed with the variable magnetic field is inductively heated, so that the rod-shaped substrate 150 facing the first member 171 in the heating region 162S can be heated. For example, when the electromagnetic induction source 162 is an induction coil, the heating region 162S may be a region where the outer periphery of the holding portion 140 is covered by the induction coil as the electromagnetic induction source 162.

[0059] The temperature detection unit 181 is attached to the outer side surface of the first component 171 in the sealed space 173 of the heating region 162S. Thus, the temperature detection unit 181 can directly measure the temperature of the inductively heated first component 171. Therefore, the temperature detection unit 181 can measure the temperature of the inductively heated first component 171 with higher accuracy than when the temperature of the first component 171 is measured in a region away from the heating region 162S or away from the emitted infrared rays.

[0060] The temperature detection unit 181 may include, for example, a thermocouple as a temperature sensor. The thermocouple is a temperature sensor that measures the temperature difference based on the thermoelectric potential generated at the junction of two metals, and can measure the temperature of the first component 171 by adhering to the outer side surface of the first component 171 of the heat generation region 162S with a thermosetting adhesive.

[0061] In addition, data such as the temperature measured by the temperature detection unit 181 may be output to the outside of the sealed space 173 via the heat-resistant cable 182. The heat-resistant cable 182 is, for example, a cable having a heat resistance of 500°C or more, and extends from the temperature detection unit 181 to the upstream side and is led out to the outside of the sealed space 173. The upstream side refers to the upstream side of the air flow that flows through the storage space 141 and transports the aerosol generated from the rod-shaped substrate 150. That is, the bottom 143 side of the holding unit 140 is the upstream side. In addition, the opening for the heat-resistant cable 182 from the sealed space 173 to the outside may be sealed, for example, by brazing or the like.

[0062] According to the above configuration, the suction device 100 of this embodiment can measure the temperature of the first member 171 of the heat generating region 162S by directly contacting the temperature detection unit 181 even when heat conduction to the frame is suppressed by the vacuum insulation of the sealed space 173. Therefore, the suction device 100 can measure the temperature of the first member 171 of the heat generating region 162S that is inductively heated with higher accuracy, and thus can heat the rod-shaped substrate 150 more efficiently.

[0063] <3. Modifications>

[0064] Next, refer to Figure 3 , a modification example of the suction device 100 of this embodiment is described. Figure 3 It is a schematic cross-sectional view showing the structure of a holding portion 140A according to a modified example.

[0065] like Figure 3 As shown in FIG. 1 , the holding portion 140A includes a first component 171, a second component 172, a heating portion 163, and a temperature detection portion 181. The holding portion 140A of the modified example is Figure 2 The holding portion 140 shown is different in that the first member 171 is not inductively heated but a heating portion 163 is further provided on the inner side surface of the first member 171 .

[0066] The first component 171 has a cylindrical structure with its inner side facing the storage space 141 for storing the rod-shaped substrate 150. The second component 172 has a cylindrical structure that covers the first component 171, and forms a sealed space 173 between the first component 171 and the outer side. The inside of the sealed space 173 can also be a vacuum space of less than 10-2Pa, for example. Accordingly, the holding portion 140 can suppress the conduction of heat from the storage space 141 to the second component 172 through the vacuum insulation of the sealed space 173. The first component 171 and the second component 172 can also be composed of metal or glass that can be easily bonded to each other.

[0067] The first component 171 and the second component 172 are joined to each other at the joints 174 at both ends of their respective cylindrical structures, thereby forming a sealed space 173. Specifically, in the joints 174, both ends of the cylindrical structure of the second component 172 are bent twice in a manner to form a step toward the outer side surface of the first component 171, and the front end of the formed step is joined to the outer side surface of the first component 171. Thus, between the first component 171 and the second component 172, the sealed space 173 is formed in a cylindrical shape in a manner covering the first component 171.

[0068] The heating portion 163 is a resistance heating portion adhered along the inner side surface of the first member 171. Specifically, the heating portion 163 may be a thin film heater in which a wiring for resistance heating is sandwiched by an insulating film. The heating portion 163 is adhered along the inner side surface of the first member 171 in the heating region 162S corresponding to the region of the rod-shaped substrate 150 filled with the aerosol source.

[0069] The temperature detection unit 181 is provided in the sealed space 173 between the first component 171 and the second component 172 corresponding to the heating area 162S where the heating unit 163 is provided. The temperature detection unit 181 may also include, for example, a thermocouple as a temperature sensor. The temperature detection unit 181 is adhered to the outer side surface of the first component 171 using a thermosetting adhesive or the like in the sealed space 173 of the heating area 162S. Accordingly, the temperature detection unit 181 can measure the temperature of the heating unit 163 via the first component 171.

[0070] Here, the temperature of the heating portion 163 can be estimated from the resistance value of the resistive heating wiring included in the thin film heater. On the other hand, the holder 140A of the modified example can measure the temperature of the heating portion 163 using the temperature detection unit 181, so the temperature of the heating portion 163 can be measured with higher accuracy. In addition, the holder 140A of the modified example has a plurality of units for measuring the temperature of the heating portion 163, so that even if an error occurs in one of the temperature measurement units, the temperature of the heating portion 163 can be measured using another temperature measurement unit.

[0071] In addition, the data such as the temperature measured by the temperature detection unit 181 can be output to the outside of the sealed space 173 via the heat-resistant cable 182. The heat-resistant cable 182 is, for example, a cable having a heat resistance of 500° C. or more, and extends from the temperature detection unit 181 to the upstream side and is led to the outside of the sealed space 173. The opening for the heat-resistant cable 182 from the sealed space 173 to the outside can also be sealed by, for example, brazing or the like.

[0072] Above, please refer to the attached Figure 1 While the preferred embodiment of the present invention is described in detail, the present invention is not limited to this example. Obviously, anyone with ordinary knowledge in the technical field to which the present invention belongs can think of various variations or modifications within the scope of the technical concept described in the claims, and these can of course be understood to belong to the technical scope of the present invention.

[0073] In addition, the following configurations also belong to the technical scope of the present invention. (1)

[0075] An aerosol generating device comprising:

[0076] a containing space for containing the aerosol generating substrate;

[0077] A heat-insulating structure having a cylindrical structure, with the inner side of the cylindrical structure facing the receiving space;

[0078] a heat generating portion provided on a portion of the inner side surface of the heat insulating structure; and

[0079] A temperature detection unit is provided inside the heat insulating structure corresponding to the heat generating unit. (2)

[0081] The aerosol generating device according to (1), wherein:

[0082] The heat generating portion generates heat by induction heating based on a changing magnetic field.

[0083] The temperature detection unit is provided corresponding to an electromagnetic induction source that generates the variable magnetic field. (3)

[0085] The aerosol generating device according to (1) or (2), wherein:

[0086] The heat-insulating structure includes: a first component facing the accommodation space; and a second component covering an outer side surface of the first component and forming a sealed space between the first component and the second component. (4)

[0088] The aerosol generating device according to (3), wherein:

[0089] The first member and the second member are made of different materials from each other. (5)

[0091] The aerosol generating device according to (3) or (4), wherein:

[0092] The first member and the second member are joined to each other by brazing. (6)

[0094] The aerosol generating device according to any one of (3) to (5), wherein:

[0095] The temperature detection unit is provided inside the sealed space of the heat insulating structure. (7)

[0097] The aerosol generating device according to any one of (3) to (6), wherein:

[0098] The interior of the sealed space is in a vacuum state. (8)

[0100] The aerosol generating device according to any one of (3) to (7), wherein:

[0101] A portion of the first member generates heat by induction heating, thereby functioning as the heat generating portion. (9)

[0103] The aerosol generating device according to (8), wherein:

[0104] The temperature detection portion is fixed to the first member functioning as the heat generating portion by a thermosetting adhesive. (10)

[0106] The aerosol generating device according to (9), wherein:

[0107] The temperature detection portion detects a temperature of the heat generating portion. (11)

[0109] The aerosol generating device according to any one of (1) to (10), wherein:

[0110] The temperature detection unit includes a thermocouple. (12)

[0112] The aerosol generating device according to (11), wherein:

[0113] an air flow for conveying the aerosol generated from the aerosol generating substrate through the housing space;

[0114] The thermocouple is connected to a heat-resistant cable that is extended toward the upstream side of the air flow and is led out to the outside of the heat-insulating structure.

[0115] Description of Reference Numerals

[0116] 100 suction device

[0117] 111 Power Supply

[0118] 112 Sensor unit

[0119] 113 Notification Department

[0120] 114 Storage

[0121] 115 Ministry of Communications

[0122] 116 Control Department

[0123] 140, 140A holding part

[0124] 141 Containment Space

[0125] 142 Opening

[0126] 143 Bottom

[0127] 150 Rod substrate

[0128] 162 Electromagnetic induction source

[0129] 162S heating area

[0130] 163 Heating part

[0131] 171 First Part

[0132] 172 Second Part

[0133] 173 Sealed Space

[0134] 174 Joint

[0135] 181 Temperature detection unit

[0136] 182 Heat-resistant cable

Claims

1. An aerosol generating device, characterized in that: have: a containing space for containing the aerosol generating substrate; A heat-insulating structure having a cylindrical structure, with the inner side of the cylindrical structure facing the receiving space; a heat generating portion provided on a portion of the inner side surface of the heat insulating structure; and A temperature detection unit is provided inside the heat insulating structure corresponding to the heat generating unit.

2. The aerosol generating device according to claim 1, characterized in that: The heat generating portion generates heat by induction heating based on a changing magnetic field. The temperature detection unit is provided corresponding to an electromagnetic induction source that generates the variable magnetic field.

3. The aerosol generating device according to claim 1 or 2, characterized in that: The heat-insulating structure includes: a first component facing the accommodation space; and a second component covering an outer side surface of the first component and forming a sealed space between the first component and the second component.

4. The aerosol generating device according to claim 3, characterized in that: The first member and the second member are made of different materials from each other.

5. The aerosol generating device according to claim 3 or 4, characterized in that: The first member and the second member are joined to each other by brazing.

6. The aerosol generating device according to any one of claims 3 to 5, characterized in that: The temperature detection unit is provided inside the sealed space of the heat insulating structure.

7. The aerosol generating device according to any one of claims 3 to 6, characterized in that: The interior of the sealed space is in a vacuum state.

8. The aerosol generating device according to any one of claims 3 to 7, characterized in that: A portion of the first member generates heat by induction heating, thereby functioning as the heat generating portion.

9. The aerosol generating device according to claim 8, characterized in that: The temperature detection portion is fixed to the first member functioning as the heat generating portion by a thermosetting adhesive.

10. The aerosol generating device according to claim 9, characterized in that The temperature detection portion detects a temperature of the heat generating portion.

11. The aerosol generating device according to any one of claims 1 to 10, characterized in that: The temperature detection unit includes a thermocouple.

12. The aerosol generating device according to claim 11, characterized in that an air flow for conveying the aerosol generated from the aerosol generating substrate through the housing space; The thermocouple is connected to a heat-resistant cable that is extended toward the upstream side of the air flow and is led out to the outside of the heat-insulating structure.

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