WO2024018526A1 - Body unit of non-combustion-type flavor inhaler and heating unit of non-combustion-type flavor inhaler - Google Patents

Abstract

A body unit of a non-combustion-type flavor inhaler that is equipped with: a heating unit comprising a heating section to which a cartridge, said cartridge being equipped with a reservoir that stores an aerosol-producing liquid and a liquid-holding member that holds the aerosol-producing liquid supplied from the reservoir, is detachable, and which is positioned in contact with the liquid-holding member to heat the aerosol-producing liquid held by the liquid-holding member by generating heat when an electric current is supplied, and a conductive section which is electrically connected to the heating section to form a closed circuit; an induction coil which generates a magnetic field when an electric power is supplied, and allows the conductive section to generate an electric current by electromagnetic induction; and a power supply that supplies the electric power to the induction coil.

Description

Main unit of non-combustion type flavor suction device and heating unit of non-combustion type flavor suction device

The present invention relates to a main body unit of a non-combustion type flavor inhaler and a heating unit of a non-combustion type flavor inhaler.

Conventionally, systems are known in which a liquid aerosol source (hereinafter also referred to as a liquid aerosol-generating substrate or aerosol-generating liquid) is heated to generate an aerosol, and this aerosol is used for flavor inhalation by a user. Patent Document 1 discloses a first component including a housing and a power source disposed in the housing, a second component detachable from the first component and including a heating element and a liquid moving element, and a liquid aerosol generating component. A system is proposed comprising a third component including a reservoir for accommodating a substrate.

Special table 2019-506851 publication

In a system that heats the aerosol source by passing electric current through a heating element such as a filament and using this heat to heat the aerosol source, for example, if the heating element deteriorates or dirt adheres to the heating element, the heating element must be replaced. There is. However, since the heating element is connected to the power supply via electrical wiring, when replacing it, the user must disconnect this connection, pull out the heating element, connect the new heating element to the electrical wiring, and assemble it into the system. , the replacement work was complicated and lacked convenience. In addition, it takes time to reach a predetermined temperature after the current starts flowing through the heating element, which causes inconveniences such as a longer time lag before suction starts and variations in the control temperature of the heating element. There was a need for improved convenience.

Therefore, the present invention aims to provide a technology that can improve the convenience of inhaling flavor.

The main body unit of the non-combustion type flavor inhaler according to the present invention includes:
A cartridge including a reservoir for storing an aerosol generation liquid and a liquid holding member for holding the aerosol generation liquid supplied from the reservoir is removably attached,
a heating section that is disposed at a position in contact with the liquid holding member and heats the aerosol generating liquid held by the liquid holding member by generating heat when supplied with electric current; and a heating section that is electrically connected to the heating section and closed. a heating unit having a conductive part forming a circuit;
an induction coil that generates a magnetic field when supplied with electric power and generates a current in the conductive part by electromagnetic induction;
a power source that supplies power to the induction coil;
Equipped with.

The heating section may be disposed between the conductive section and a planned attachment position where the liquid holding member is disposed when the cartridge is attached to the main body unit.

The heating part may include a connection part with the conductive part, and a protrusion part that protrudes toward the planned attachment position of the liquid holding member with respect to the connection part.

The conductive part is
A slit along the uniaxial direction is provided in a peripheral wall of a cylinder extending in a uniaxial direction, and a part of the peripheral wall is spaced apart by the slit in the circumferential direction,
When the conductive part is viewed from the side where the liquid retaining member is scheduled to be attached in the uniaxial direction, one part and the other part facing each other across the slit in the circumferential direction of the peripheral wall are respectively of the heating part. It may be connected to a connection site.

The conductive part may be formed such that its length in the uniaxial direction is longer than the length of the heating part.

The heating part and the conductive part may be formed along the same cylinder.

The heating section may be detachable from the conductive section.

The main unit includes a plurality of the heating parts,
A plurality of heating parts may be connected to one conductive part, and the plurality of heating parts may be arranged apart from each other.

The induction coil may be arranged to surround the conductive part.

In the main body unit, a core that increases the density of magnetic flux generated by the induction coil may be disposed inside the cylinder.

The conductive part includes a base member and a conductive layer provided on the surface of the base member,
The conductive layer may be formed of a material having at least one of higher magnetic permeability and higher electrical conductivity than the base member.

The heating unit according to the present invention includes:
A heating unit included in a non-combustion flavor inhaler, which is capable of attaching and detaching a cartridge including a reservoir for storing an aerosol-generating liquid and a liquid holding member for holding the aerosol-generating liquid supplied from the reservoir, the heating unit comprising:
a heating section that is disposed at a position in contact with the liquid holding member and heats the aerosol generating liquid held by the liquid holding member by generating heat in response to supply of electric current;
a conductive part that is electrically connected to the heating part to form a closed circuit and supplies a current generated by electromagnetic induction to the heating part;
Heating unit with.

The heating unit according to the present invention includes:
A heating unit included in a non-combustion flavor inhaler, which is capable of attaching and detaching a cartridge including a reservoir for storing an aerosol-generating liquid and a liquid holding member for holding the aerosol-generating liquid supplied from the reservoir, the heating unit comprising:
a heating section that is disposed at a position in contact with the liquid holding member and heats the aerosol generating liquid held by the liquid holding member by generating heat in response to supply of electric current;
a conductive part that is electrically connected to the heating part to form a closed circuit and supplies a current generated by electromagnetic induction to the heating part,
The heating section is
A connection part with the conductive part,
a protruding portion protruding from the connecting portion on a scheduled attachment position side where the liquid holding member is placed when the cartridge is attached;
The conductive part is
A slit along the uniaxial direction is provided in a peripheral wall of a cylinder extending in a uniaxial direction, and a part of the peripheral wall is spaced apart by the slit in the circumferential direction,
When the conductive part is viewed from the side where the liquid retaining member is scheduled to be attached in the uniaxial direction, one part and the other part facing each other across the slit in the circumferential direction of the peripheral wall are respectively of the heating part. connected to the connection part,
The length in the uniaxial direction is longer than the length of the heating section.

Note that the contents described in the means for solving the problems can be combined as much as possible without departing from the problems and technical idea of the present invention.

According to the present invention, it is possible to provide a technique that can improve the convenience of inhaling flavor.

FIG. 1 is a diagram schematically showing an example of the configuration of a non-combustion flavor inhaler according to a first embodiment. FIG. 2 is a diagram showing the configuration of the heater. FIG. 3 is a perspective view of the heater, coil, and core. FIG. 4A is a diagram illustrating an example of a method for manufacturing a heater. FIG. 4B is a diagram showing another example of the heater manufacturing method. FIG. 5 is a diagram showing an example of a conductive part including a base member and a conductive layer. FIG. 6 is a perspective view showing the liquid holding member. FIG. 7 is a diagram showing the heater and the liquid holding member in a state where the liquid holding member is not in contact with the heater immediately before the cartridge is attached to the main unit. FIG. 8 is a diagram showing the heater and the liquid holding member with the cartridge attached to the main unit. FIG. 9 is a diagram showing the configuration of a heater according to Modification 1. FIG. 10 is a diagram showing the configuration of a heater according to the second embodiment. FIG. 11 is a diagram showing the configuration of a heating section according to the second embodiment. FIG. 12 is a diagram showing a state in which the heater and the liquid holding member are in contact with each other according to the second embodiment. FIG. 13A is a diagram showing the configuration of a heating section according to modification example 2. FIG. 13B is a diagram illustrating a configuration of a conductive portion according to Modification 2. FIG. FIG. 14 is a diagram showing the configuration of a heater according to modification example 2. FIG. 15 is a diagram showing the configuration of a heater according to modification 3. FIG. 16 is a diagram showing the configuration of a heater according to the third embodiment. FIG. 17 is a diagram showing the configuration of a non-combustion type flavor inhaler according to the fourth embodiment. FIG. 18 is a diagram showing the configuration of an induction coil according to the fourth embodiment. FIG. 19 is a diagram showing the configuration of a heater according to the fifth embodiment. FIG. 20 is a diagram showing the configuration of a heater according to the sixth embodiment. FIG. 21 is a diagram showing the configuration of a non-combustion type flavor inhaler equipped with a heater according to the sixth embodiment.

An embodiment of the non-combustion flavor inhaler according to the present invention will be described based on the drawings. The dimensions, materials, shapes, relative arrangements, etc. of the components described in this embodiment are merely examples. Further, the order of processing is also an example, and the processing can be changed or executed in parallel as much as possible without departing from the problems and technical idea of the present invention. Therefore, unless otherwise specified, the technical scope of the invention is not limited to the following examples.

<First embodiment>
FIG. 1 is a diagram schematically showing an example of the configuration of a non-combustion flavor inhaler according to a first embodiment. The non-combustion type flavor inhaler 1 according to the present embodiment includes a cartridge 2 that holds a liquid aerosol source (aerosol generating liquid), a main body unit 3 for heating the aerosol source, and a cartridge 2 that is held in the user's mouth to suck the aerosol. A mouthpiece portion 4 is provided as a suction port for use. The main body unit 3 and the cartridge 2 are formed to be removable from each other. Moreover, the cartridge 2 and the mouthpiece part 4 are formed so that they can be attached to and detached from each other. The cartridge 2, main body unit 3, and mouthpiece portion 4 of this embodiment each have a columnar shape such as a cylinder or a prism, and are removable from each other in the axial direction.

The cartridge 2 includes a reservoir 21 that stores an aerosol source, and a liquid holding member 22 that holds the aerosol source supplied from the reservoir 21. When the cartridge 2 is attached to the main body unit 3, the liquid holding member 22 of the cartridge 2 and the heater (heating unit) 31 of the main body unit 3 come into contact with each other. Then, the aerosol source absorbed by the liquid holding member 22 is heated by the heater 31 to generate an aerosol. The aerosol thus generated passes through the flow path in the cartridge 2 and the mouthpiece section 4 and is inhaled by the user. In the embodiment, for convenience, the direction in which the cartridge 2 and the mouthpiece part 4 are located in the non-combustible flavor inhaler 1, and the direction in which the cartridge 2 is pulled out from the main unit 3, is referred to as "up", and the non-combustible flavor inhaler 1 is referred to as "up". The direction in which the main body unit 3 is positioned in the device 1 and the direction in which the cartridge 2 is attached to the main body unit 3 will be described as "down".

<Cartridge>
The cartridge 2 has an outer shell 20, a reservoir 21, and a liquid holding member 22. The outer shell 20 is a generally cylindrical member, includes a connection mechanism for connecting to the mouthpiece portion 4 at the upper end, a connection mechanism for connecting to the main body unit 3 at the lower end, and has a reservoir 21 inside. A liquid holding member 22 is provided.

The reservoir 21 is a tank that stores an aerosol source. The aerosol source is a liquid, such as a polyhydric alcohol such as glycerin or propylene glycol. Note that the aerosol source may be a liquid mixture further containing nicotine liquid, flavor components such as tobacco, water, perfume, and the like. Although the shape of the reservoir 21 is not particularly limited, it has a storage space for storing an aerosol source, and this storage space is formed so as to communicate with the liquid holding member 22 . Thereby, the reservoir 21 supplies the aerosol source within the storage space to the liquid holding member 22. Further, the reservoir 21 has an aerosol flow path 211 through which aerosol generated by heating an aerosol source passes, as will be described later.

The liquid retaining member 22 is formed of, for example, an aggregate of fiber materials such as glass fiber or rock wool, or a material having voids inside (porous material) such as porous ceramic. The liquid holding member 22 is in contact with the aerosol source stored in the reservoir 21, and is disposed so that the gap in the liquid holding member 22 and the space in the reservoir 21 storing the aerosol source communicate with each other. Therefore, the liquid retaining member 22 absorbs and retains the aerosol source by capillary action. Further, the liquid holding member 22 has a surface 222 exposed to the main unit 3 side, and when the cartridge 2 is attached to the main unit 3, the surface 222 of the liquid holding member 22 is exposed to the heating element provided in the main unit 3. The contact portion 311 comes into contact with the portion 311 . The shape of this surface (hereinafter also referred to as a contact surface) 222 is not particularly limited, and may be, for example, a flat surface or a curved surface. When the heating section 311 generates heat while in contact with the contact surface 222 of the liquid holding member 22, the aerosol source near the contact surface 222 is heated and aerosol is generated.

An aerosol flow path 221 that communicates with the aerosol flow path 211 of the reservoir 21 is provided at the center of the liquid holding member 22 . Although FIG. 1 shows an example in which the aerosol channels 211 and 221 are provided in the center of the liquid holding member 22 and the reservoir 21, the aerosol channels 211 and 221 are not limited to this, and the aerosol channels 211 and 221 are provided in the center of the liquid holding member 22 and the reservoir 21. It may be placed anywhere within the cartridge 2 as long as it can be delivered to the side. For example, the aerosol channels 211 and 221 may be provided outside the liquid holding member 22 and the reservoir 21 along the inner surface of the outer shell 20. The aerosol generated in the liquid holding member 22 is sucked by the user's suction action (puff), passes through the aerosol channels 211 and 221, and moves to the mouthpiece portion 4.

<Mouthpiece part>
The mouthpiece portion 4 is a mouthpiece through which the user sucks aerosol, and is connected to the end of the aerosol channel included in the cartridge 2 . Furthermore, the mouthpiece portion 4 may be a capsule filled with a flavor source 41 such as shredded tobacco leaves. In this case, when the capsule is used, the capsule is opened, the cartridge 2 side opening communicates with the user side opening, and the aerosol passes through the accommodation space of the flavor source 41 as the user puffs, thereby adding flavor to the aerosol. . Note that the non-combustion flavor inhaler 1 may not include the mouthpiece portion 4. When the mouthpiece section 4 is not provided, or when the mouthpiece section 4 is not provided with the flavor source 41, the aerosol source held by the reservoir 21 may be a liquid mixture containing the flavor source.

<Main unit>
The main body unit 3 includes a generally cylindrical casing 37, and includes a heater (heating unit) 31, an induction coil 32, an operation detection section 33, a control section 34, a core 35 in an inner space of the casing 37. A battery (power source) 36 is provided. Heater 31 includes a heating section 311 and a conductive section 312. The heating unit 311 is arranged at a position where it comes into contact with the liquid holding member 22 when the cartridge 2 is attached to the main unit 3. The induction coil 32 receives power from the battery 36 to generate a magnetic field as described later, and generates a current in the conductive portion 312 by electromagnetic induction. The heating unit 311 generates Joule heat when supplied with the current generated by the conductive unit 312, and heats the aerosol source held by the liquid holding member 22.

The operation detection section 33 includes, for example, a pressure sensor, detects the negative pressure generated when the user puffs on the mouthpiece section 4, and inputs a signal according to the detection result to the control section 34. Further, the operation detection unit 33 may be an operation button or input means operated by the user. The control unit 34 controls power supply to the heating unit 311 based on the signal input from the operation detection unit 33. For example, the control unit 34 controls the heat generation of the heating unit 311 according to the user's puff.

Note that the main unit 3 may include other configurations. For example, it may include an output section such as an indicator that lights up or flashes to indicate the operating state of the main unit 3, or a display that displays the state of the non-combustion flavor inhaler 1. Further, the main unit 3 may include a charging connector for connecting to a cable that supplies current to charge the battery 36, and a power receiving section that can contactlessly receive power transmitted from an external power source. Further, the power source is not limited to a battery, and may be one that provides power supplied from the outside to the control unit 34 and the induction coil 32. In this case, the power supply 36 of the main unit 3 may be a simple power supply line that connects an external power supply and the control unit 34 or the induction coil 32, and converts the external power into a predetermined voltage value or frequency, etc. It may also be a conversion circuit that does this.

<Heater>
FIG. 2 is a diagram showing the configuration of the heater 31, in which (A) is the front of the heater 31, (B) is the left side of the heater 31, (C) is the right side of the heater 31, and (D) is the side of the heater 31. The top surface (E) shows the bottom surface of the heater 31. Note that the rear surface of the heater 31 is simply reversed in left and right sides compared to the front surface, so illustration of the rear surface is omitted. FIG. 3 is a perspective view of the heater 31, coil 32, and core 35.

The heater 31 has a conductive part 312 extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311 connected to one end of the conductive part 312. The heating section 311 and the conductive section 312 are electrically connected to each other to form a closed circuit. The conductive part 312 has a substantially cylindrical shape extending in the Y-axis direction, and a slit 3122 extending in the Y-axis direction is provided in the peripheral wall 3121. That is, the conductive portion 312 has a shape in which a portion of the peripheral wall 3121 is spaced apart by the slit 3122 in the circumferential direction. Similarly, the heating section 311 has a substantially cylindrical shape arranged so as to share the central axis C with the conductive section 312, and is provided with a slit 3112 along the Y-axis direction in a part of the circumferential direction. That is, the heating part 311 has a shape in which a part of the peripheral wall is spaced apart by the slit 3112 in the circumferential direction.

The heating section 311 is disposed between the conductive section 312 and the planned attachment position where the liquid holding member 22 is disposed when the cartridge 2 is attached to the main unit 3. As shown in FIG. 2(C), the heating part 311 has connection parts 3113 and 3114 extending downward from the vicinity of opposing ends in the circumferential direction with the slit 3112 in between, and are connected to the conductive part 312, respectively. be done. In the conductive portion 312, when viewed from the planned mounting position side of the liquid holding member 22 in the Y-axis direction, one portion 3123 and the other portion 3124 facing each other across the slit 3122 in the circumferential direction of the peripheral wall 3121 are heated. It is connected to connection parts 3113 and 3114 of section 311.

In the heater 31 in FIG. 2, the conductive part 312 is formed so that the length L2 in the Y-axis direction is longer than the length L1 of the heating part 311. On the other hand, since the length C0 and thickness T0 along the circumferential direction of the heating section 311 and the conductive section 312 are almost the same, the cross-sectional area of the heating section 311 is equal to that of the conductive section 312 in the cross section along the Y-axis direction. It is smaller than the cross-sectional area. Therefore, the electrical resistance of the heating section 311 is higher than that of the conductive section 312, and when a current is generated, the heating section 311 mainly generates heat. Further, the resistivity of the material forming the heating section 311 may be higher than the resistivity of the material forming the conductive section 312. Since the resistance value R is defined as R=ρ/A (resistivity ρ, cross-sectional area A), by employing a material with higher resistivity ρ than the conductive part 312 for the heating part 311, the resistance value of the heating part 311 can be reduced. It becomes easier to set R higher, it is easier to obtain the required amount of heat, and the degree of freedom in design is improved.

The heater 31 is detachably held in the housing 37 of the main unit 3. For example, the heater 31 can be inserted into or removed from the housing 37 through the upper opening of the housing 37. As a result, when the heater 31 deteriorates due to burnt material or adhesion of the material of the liquid holding member 22, the used heater 31 can be removed and replaced with a new heater 31.

FIG. 4A is a diagram showing an example of a method for manufacturing the heater 31. First, a conductive metal cylinder 30 is prepared (step S10), and a part of the peripheral wall 3011 is cut along the direction of the central axis C (Y-axis direction in the example shown) passing through the centers of the openings 301 and 302 at both ends. It is cut to form a slit 3022 (step S11). Then, from a position that is a predetermined length L1 away from one end (upper end in the illustrated example) of the cylinder 30 and on the opposite side of the slit 3022 with the central axis C in between, the central axis C and A notch 3023 is formed in the peripheral wall 3011 along orthogonal directions (X and Z axis directions) (step S12). As a result, the portion of the metal cylinder 30 above the notch 3023 becomes the heating portion 311, and the portion near the slit 3022 remaining without the notch becomes the connection portions 3113 and 3114. Further, a portion of the metal tube 30 below the notch 3023 becomes the conductive portion 312 . In this way, according to the manufacturing method shown in FIG. 4A, the heating section 311 and the conductive section 312 can be formed from the same cylinder 30, and the heater 31 can be easily manufactured.

FIG. 4B is a diagram showing another example of the method for manufacturing the heater 31. First, a conductive metal plate 30A extending in a uniaxial direction (the Y-axis direction in the illustrated example) is prepared (step S20), and a conductive metal plate 30A is prepared at a position a predetermined length L1 away from one end (the upper end in the illustrated example). A slit 3024 is formed along the direction perpendicular to the Y-axis (in the illustrated example, the X-axis direction) (step S21). The ends of the slit 3024 are provided at a predetermined distance from the left and right ends 3015 and 3016 of the plate 30A, and the connection portions 3113 and 3114 are located between the slit 3024 and the left and right ends 3015 and 3016 of the board 30A. becomes.

Then, the plate 30A is rolled into a substantially cylindrical shape around the central axis C parallel to the Y axis, and the left and right ends 3015 and 3016 of the plate 30A are brought close together to form a slit 3022 between the left and right ends 3015 and 3016 (step S22 ). As a result, the portion of the substantially cylindrical plate 30A above the slit 3024 becomes the heating portion 311, and the portion below the slit 3024 becomes the conductive portion 312. Note that steps S21 and S22 are not limited to this, and the slits 3024 may be formed after the plate 30A is rolled up. In this way, according to the manufacturing method shown in FIG. 4B, the heating section 311 and the conductive section 312 can be formed from the same plate 30A, and the heater 31 can be easily manufactured.

Note that the method for manufacturing the heater 31 is not limited to the examples shown in FIGS. 4A and 4B, and may be used as long as it can form a shape similar to that shown in FIG. 2. For example, the heater 31 may be created by forming the heating part 311 and the conductive part 312 from different members and connecting the heating part 311 and the conductive part 312 by brazing or welding. In this case, the heating section 311 and the conductive section 312 can be formed of different materials, and materials suitable for heat generation and electromagnetic induction can be selected, respectively, so that heat generation efficiency can be improved. Furthermore, although FIGS. 2 to 4B show an example of the heater 31 having a substantially cylindrical shape, the heater 31 (heating section 311 and conductive section 312) is not limited to the cylindrical shape, but may have a rectangular or elliptical shape. You can.

Furthermore, the conductive part 312 may have a structure in which a layer (hereinafter also referred to as a conductive layer) 326 made of a material having high at least one of magnetic permeability and high conductivity is provided on the surface of the base member 325. FIG. 5 is a diagram showing an example of a conductive portion 312A including a base member 325 and a conductive layer 326. FIG. 5 shows a cross section of the conductive portion 312A in a direction perpendicular to the central axis C.

In the example of FIG. 5, the base member 325 has a substantially cylindrical shape extending in the Y-axis direction, and is provided with a slit 3122 along the Y-axis direction. That is, the conductive portion 312 has a shape in which a portion of the peripheral wall 3121 is spaced apart by the slit 3122 in the circumferential direction.

The conductive layer 326 is preferably formed at least on the outer surface of the base member 325. Further, the conductive layer 326 may be formed on the inner surface of the base member 325 in addition to the outer surface of the base member 325. In the example of FIG. 5, a conductive layer 326 is provided on the outer and inner surfaces of the base member 325.

The conductive layer 326 may be laminated on the base member 325 by, for example, plating or vapor deposition. The conductive layer 326 is made of a material that has at least one of higher magnetic permeability and higher electrical conductivity than the base member 325. Examples of the material with high magnetic permeability that forms the conductive layer 326 include copper, aluminum, steel, iron, and alloys thereof. Furthermore, examples of materials with high electrical conductivity include iron, silver, copper, and alloys thereof.

The base member 325 may be formed from at least one of a non-conductive material and a material that is not heated by induction. For example, the base member 325 may be made of glass, ceramic, resin, or the like. Further, a plurality of base members 325 may be provided concentrically, and a conductive layer 326 may be provided on the surface of each base member 325.

The upper portion of each conductive layer 326 near the slit 3122 is connected to the connection portions 3113 and 3114 of the heating section 311, respectively. The heating section 311 may also include a base member and a conductive layer similarly to the conductive section 312A in FIG. 5, and the conductive layer of the heating section and the conductive layer of the conductive section 312A may be connected.

By including the conductive layer 326 with high magnetic permeability and high conductivity in the conductive part 312A, the eddy current generated in the conductive part 312A can be increased, and the heat generation in the heating part 311 can be further increased. , it is possible to suppress heat generation in the conductive portion 312A and improve energy transmission efficiency.

<Configuration that generates aerosol>
FIG. 6 is a perspective view showing the liquid holding member 22. As shown in FIG. The liquid retaining member 22 shown in FIG. 6 is a cylindrical wick, and an aerosol channel 221 is formed in the center of the liquid retaining member 22 when viewed from above.

As shown in FIGS. 2 and 3, the heater 31 of this example has a generally cylindrical shape, the core 35 is disposed within the inner space 313, and the induction coil 32 is disposed outside the heater 31. That is, the core 35, the heater 31, and the induction coil 32 are arranged coaxially. The core 35 is a columnar member made of a ferromagnetic material such as iron or ferrite. By providing the core 35, the density of the magnetic flux passing through the heater 31 can be increased, and the device can be made smaller. For example, by increasing the magnetic flux density, the outer diameters of the heater 31 and the induction coil 32 can be set smaller, and the outer diameter of the main unit 3 can be made smaller.

FIG. 7 is a diagram showing the upper part of the heater 31 and the liquid holding member 22 in a state where the liquid holding member 22 is not in contact with the heater 31 immediately before the cartridge 2 is attached to the main unit 3. FIG. 8 is a diagram showing the upper part of the heater 31 and the liquid holding member 22 with the cartridge 2 attached to the main unit 3.

The liquid holding member 22 is provided in the cartridge 2 so that at least a contact surface 222 with the heating section 311 is exposed. In the liquid holding member 22 of this example, the contact surface 222 is planar, and when the cartridge 2 is not attached to the main unit 3 (initial state), the contact surface 222 is approximately perpendicular to the Y-axis direction, which is the insertion/extraction direction of the cartridge 2. It is arranged so that

The heating part 311 of the heater 31 is located between the conductive part 312 and the planned installation position where the liquid holding member 22 will be placed when the cartridge 2 is installed in the main unit 3 (the position indicated by the two-dot chain line in FIG. 7). will be placed in Further, the heating section 311 is configured such that at least a portion thereof protrudes toward the planned attachment position of the liquid retaining member with respect to the connecting portions 3113 and 3114 with the conductive section 312. In this example, the portions of the heating portion 311 other than the connection portions 3113 and 3114 are protruding portions.

As shown in FIG. 8, when the cartridge 2 is attached to the main body unit 3, the lower end of the liquid holding member 22 is located below the upper end of the heating section 311, and the heating section 311 of the liquid holding member 22 The abutting portion of the liquid retaining member 22 and the heating portion 311 is pushed upward to form unevenness on the abutting surface 222, thereby stably maintaining the contact state between the liquid retaining member 22 and the heating portion 311.

<Control unit>
The control unit 34 includes a DC/AC inverter for supplying high frequency AC current to the induction coil 32. The control unit 34 detects from the operation detection unit 33 that a start operation has been performed, such as when an operation switch is operated, when the cartridge 2 is attached to the main unit, and when the mouthpiece section 4 is attached to the cartridge 2. When detected, an AC current of a predetermined frequency is supplied to the induction coil 32, assuming that an instruction has been given to start the heating operation. For example, the control unit 34 may include a resonance capacitor, and may have a configuration in which the capacitor and the coil (inductor) 32 resonate to control the supply of AC current. In this case, the frequency (resonant frequency) f ₀ of the AC current is determined by the capacitance C of the resonance capacitor and the inductance L of the induction coil 32 as f ₀ = 1/(2π√(LC)). Thereby, the induction coil 32 generates a fluctuating electromagnetic field (alternating magnetic field) of the predetermined frequency. The frequency of the electromagnetic field is preferably, for example, 1 kHz or more and 30 MHz or less, preferably 50 kHz or more and 500 kHz or less, and more preferably 100 kHz or more and 250 kHz or less. In this embodiment, the inductance L of the coil is 1.1 μH, and the frequency of the fluctuating electromagnetic field is 180 kHz.

In this way, the control unit 34 causes the conductive portion 312 of the heater 31 to generate an induced current by causing an AC current to flow through the induction coil 32 and generating a fluctuating electromagnetic field. The conductive part 312 is partially separated in the circumferential direction by a slit 3122, and when an induced current is generated by the induction coil 32, a potential difference is generated between parts facing each other with the slit 3122 in between, and the connection part on the conductive part 312 side Current flows from the heating portion 3123 and 3124 to the heating portion 311 via the connection portions 3113 and 3114 on the heating portion 311 side. As a result, Joule heat is generated in the heating section 311, and the heating section 311 generates heat. In addition, the heating section 311 generates an induced current due to the action of the fluctuating electromagnetic field by the induction coil 32, and generates heat also due to this induced current.

Further, the control unit 34 includes a sensor that detects the temperature of the heating unit 311 or the temperature of the liquid holding member 22, and adjusts the current supplied to the induction coil 32 based on the temperature detected by this sensor. It may be controlled so that the temperature becomes a predetermined temperature.

<Operation>
When power supply to the induction coil 32 is started in response to a user's start operation, the heater 31 generates heat, heats the aerosol source held in the liquid holding member 22, and generates aerosol. When the user holds the mouthpiece portion 4 in his/her mouth and performs a puff (suction operation), outside air is introduced from the intake port 371 provided in the housing 37 of the main unit 3, and the inner space of the heater 31, that is, the conductive portion 312 The outside air is introduced into the contact position between the liquid retaining member 22 and the heater 31 using the inner space of the heating section 311 as an outside air passage. Here, the aerosol mixes with the outside air and moves to the mouthpiece section 4 via the aerosol channels 211 and 221 in the cartridge 2. Flavor is added to the aerosol by the aerosol passing through the accommodation space of the flavor source 41 in the mouthpiece section 4, and this aerosol is provided from the mouthpiece section 4 to the user.

<Effect>
As described above, according to this embodiment, rapid heating is possible by causing the heater 31 to generate heat using electromagnetic induction. Therefore, for example, the time from when the start operation is performed to when the heater 31 is made to generate heat at a predetermined temperature to enable suction can be shortened, and convenience can be improved.

Further, in this embodiment, since the induction coil 32 and the heater 31 are not connected by wiring, even when replacing the heater 31, there is no need to connect or remove the wiring, and the replacement can be easily performed, thereby improving convenience. Can be done.

Further, in this embodiment, since the inner space of the heater 31 is used as an introduction flow path for outside air, the outside air is warmed before reaching the contact portion between the liquid holding member 22 and the heater 31, and therefore, for example, power consumption can be suppressed. can. Therefore, the number of times the battery is charged can be reduced, and convenience can be improved.

<Modification 1>
FIG. 9 is a diagram showing the configuration of a heater 31A according to modification 1. This modification differs from the first embodiment described above in the shape of the heater 31A, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

As shown in FIG. 9(A), the heater 31A includes a top plate portion 3118 above the heating portion 311. The top plate portion 3118 is, for example, a flat plate extending in a direction perpendicular to the central axis C, and is arranged so as to close the upper opening of the substantially cylindrical heating portion 311 . Note that the top plate portion 3118 is not limited to a flat plate; the top surface may be formed in a convex shape upward (toward the planned attachment position of the liquid holding member 22), or may be formed as a curved surface in which the top surface is concave downward. .

Furthermore, the top plate portion 3118 may have a slit 3119 as shown in FIG. 9(B). The slit 3119 of the top plate part 3118 is arranged so as to be continuous with the slit 3112 on the peripheral wall side, and partitions the top plate part 3118 into a connection part 3113 side and a connection part 3114 side, so that the current flows in the circumferential direction of the heating part 311. I try to make it flow.

According to this modification, by providing the top plate portion 3118, the contact area between the heater 31A and the liquid holding member 22 can be increased, and energy transmission efficiency can be improved.

<Second embodiment>
FIG. 10 is a diagram showing the configuration of the heater 31B according to the second embodiment, in which (A) is the front of the heater 31B, (B) is the left side of the heater 31B, (C) is the right side of the heater 31B, ( D) shows the top surface of the heater 31B, and (E) shows the bottom surface of the heater 31B. This embodiment is different from the first embodiment described above in the shape of the heater 31B, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31B has a conductive part 312B extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311B connected to one end of the conductive part 312B. The heating part 311B and the conductive part 312B are formed separately, and the heating part 311B and the conductive part 312B are connected to constitute the heater 31B. The conductive portion 312B has a substantially cylindrical shape extending in the Y-axis direction, and a slit 3122 extending in the Y-axis direction is provided in the peripheral wall 3121.

FIG. 11 is a diagram showing the configuration of the heating section 311B according to the present embodiment, in which (A) is the front side of the heating section 311, (B) is the right side surface of the heating section 311B, and (C) is the top surface of the heating section 311B. , (D) shows the bottom surface of the heating section 311B. The heating section 311B is disposed between the conductive section 312B and the planned attachment position where the liquid holding member 22 is disposed when the cartridge 2 is attached to the main body unit 3. The heating portion 311B includes connection portions 3115 and 3116 that connect to the conductive portion 312B, and a protrusion portion 3117 that protrudes upward from each connection portion 3115 and 3116 (toward the planned attachment position of the liquid holding member 22). The protruding portion 3117 in this example is formed in the shape of an upside-down V-shape (hereinafter also referred to as an inverted V-shape); On the other hand, any shape may be used as long as it has a portion protruding toward the intended mounting position of the liquid retaining member 22.

The connection parts 3115 and 3116 have base wall parts 151 and 161 that are inserted into the inner space of the conductive part 312B, and flange parts 152 and 162 that project in the radial direction (X-Z axis direction) of the heater 31B. There is. The heating part 311B has elasticity, and the interval between the base wall parts 151 and 161 is formed to be larger than the inner diameter of the conductive part 312B. The wall parts 151 and 161 are inserted into the inner space of the conductive part 312 and attached to the conductive part 312. As a result, the base wall portions 151 and 161 of the heating portion 311B are pressed against the inner surface of the conductive portion 312 due to the elastic force, and the heating portion 311B is prevented from coming off from the conductive portion 312B. Furthermore, even when the cartridge 2 is attached to the main body unit 3 and pressure is applied downward in the Y-axis direction to the heating section 311B by the liquid holding member 22, the flange sections 152 and 162 may abut against the upper surface of the conductive section 312B. The position of heating section 311B is maintained. Note that the configuration is not limited to the configuration in which the heating part 311B has elasticity, but the conductive part 312B has elasticity, and the base wall parts 151 and 161 are fitted into the inner space of the conductive part 312B so as to widen the inner diameter of the heating part 311B. The inner surface of the peripheral wall 3121 may be in pressure contact with the base wall portions 151 and 161 of the heating portion 311B to sandwich the heating portion 311B due to the elastic force of the portion 312B. Further, the heating portion 311B and the conductive portion 312B may be joined by welding, silver brazing, ceramic bonding, screws, or the like.

Further, the heating part 311B and the conductive part 312B are joined together not only by radial fitting but also by using a latch lock mechanism. As a latch lock mechanism, for example, a latch that can be moved forward and backward by a spring or the like is provided on one of the base wall parts 151 and 161 of the heating part 311B and the peripheral wall 3121 of the conductive part 312B, and a latch that engages with the latch is provided on the other side. An example is a structure in which a mating recess is provided. In this case, when the base wall parts 151 and 161 of the heating part 311B start to be fitted into the inner space of the conductive part 312B, the latch is compressed, and when the heating part 311B is completely fitted into the inner space of the conductive part 312B, the latch is is fitted into the engagement recess, and the engagement state between the latch and the engagement recess is maintained by the pressure of a spring or the like. Note that when force is applied to pull out the heating part 311B from the conductive part 312B, the latch is compressed and disengaged from the engagement recess, and the heating part 311B is pulled out from the conductive part 312B. By using the latch lock mechanism in this way, it is possible to maintain a stable bonding state between the heating part 311B and the conductive part 312B while making the heating part 311B and the conductive part 312B detachable.

Similar to the first embodiment described above, when a current is supplied to the induction coil 32 in response to a start operation to generate a fluctuating electromagnetic field, an induced current is generated in the conductive portion 312B and protrudes through the connection portions 3115 and 3116. A current flows through the portion 3117, and the heating portion 311 generates heat. Further, due to the action of the fluctuating electromagnetic field, an induced current is generated in the heating section 311, so that the heating section 311 generates heat. As a result, the aerosol source held by the liquid holding member 22 is heated, and aerosol is generated and provided for suction.

FIG. 12 is a diagram showing a state in which the heater 31 and the liquid holding member 22 are in contact with each other according to the second embodiment. As shown in FIG. 12, when the cartridge 2 is attached to the main unit 3, the lower end of the liquid holding member 22 is located below the upper end of the heating part 311B, and the liquid holding member 22 comes into contact with the heating part 311B. The portion is pushed upward, and unevenness is formed on the contact surface 222 of the liquid retaining member 22. Therefore, the contact area between the heater 31B and the liquid holding member 22 increases, and energy transmission efficiency can be improved. In addition, by improving energy transfer efficiency, the time lag from the start of heating until reaching a predetermined temperature is shortened, and the waiting time at the start of suction is shortened, improving convenience.

Note that in this embodiment, the two protruding parts 3117 are provided so that the inverted V-shaped protruding parts 3117 come into contact with the contact surface 222 at two places sandwiching the aerosol channel 221 of the liquid retaining member 22; The present invention is not limited to this, and the number of protruding parts 3117 may be one or more. Furthermore, by configuring the heating section 311B to be detachable from the conductive section 312B as described above, when the heater 31B deteriorates, only the heating section 311B can be replaced. In this case, even if the conductive part 312B is fixed to the housing 37 and only the heating part 311B is replaced, the heater 31B is removed from the main unit 3, the heating part 311B is replaced, and the heater 31B is replaced with the main unit 3. It may be configured to be reattached to No. 3. Alternatively, the protruding portion 3117 may be made removable, so that only the protruding portion 3117 can be replaced.

<Modification 2>
13A is a diagram illustrating the configuration of a heating section 311D according to Modification 2, FIG. 13B is a diagram illustrating the configuration of a conductive section 312D according to Modification 2, and FIG. 14 is a diagram illustrating the configuration of heater 31D according to Modification 2. FIG. This modification is different from the second embodiment described above in the connection structure between the heating part 311D and the conductive part 312D in the heater 31D, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31D includes a conductive portion 312D extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating portion 311D connected to one end of the conductive portion 312D. The heating portion 311D and the conductive portion 312D are formed separately, and the heating portion 311D and the conductive portion 312D are connected to constitute the heater 31D.

The heating part 311D includes connection parts 3115 and 3116 that connect to the conductive part 312D, and a protrusion part 3117 that projects from each of the connection parts 3115 and 3116 toward the planned attachment position of the liquid holding member 22. The connection portions 3115 and 3116 of this modification are provided with engaging claws 81 that protrude outward from the lower portions of the outer peripheral surfaces of the base wall portions 151 and 161. On the other hand, an engagement groove 82 that engages with the engagement claw 81 of the heating section 311D is provided in the upper part of the peripheral wall 3121 of the conductive section 312D. The engagement groove 82 has a descending portion 821 extending along the Y-axis direction and a transverse portion 822 provided along the circumferential direction from the lower end of the descending portion 821 .

The heating part 311D is heated by inserting the engaging claws 158 and 168 into the descending part 821 of the engaging groove 82 from above the conductive part 312D with the engaging claws 81 and the engaging grooves 82 aligned. When moved in the axial direction and rotated in the circumferential direction at a position where the lower end of the descending part 821 is reached, the engaging claws 158 and 168 engage with the transverse part 822. In this way, the connection parts 3115 and 3116 in this modification have a so-called bayonet structure in which the connection parts 3115 and 3116 are connected by engagement between the engagement claw 81 and the engagement groove 82. Note that the shapes of the engaging claw 81 and the engaging groove 82 are not particularly limited to the shape shown in FIG. 14, and may have other bayonet-type structures.

According to this modification, the heating part 311D and the conductive part 312D can be reliably coupled, and the heating part 311D can be prevented from accidentally falling off.

<Modification 3>
FIG. 15 is a diagram showing the configuration of a heater 31E according to modification 3, in which (A) is the front of the heating section 311E, (B) is the right side of the heating section 311E, (C) is the top surface of the heating section 311E, (D) shows the bottom surface of the heating part 311E, and (E) shows the state in which the heating part 311E is attached to the conductive part 312B to configure the heater 31E. This modified example is different from the second embodiment described above in the shapes of the connection parts 3115 and 3116 in the heater 31E, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31E has a conductive part 312B extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311E connected to one end of the conductive part 312B. The heating section 311E and the conductive section 312B are formed separately, and the heating section 311E and the conductive section 312B are connected to form the heater 31E.

The heating part 311E includes connection parts 3115 and 3116 that connect to the conductive part 312B, and a protrusion part 3117 that projects from each of the connection parts 3115 and 3116 toward the planned attachment position of the liquid holding member 22. Note that the connection parts 3115 and 3116 of this modification include a cylindrical plug part 131, a wiring part 132, and an electrode part 133.

The plug portion 131 is made of an insulating material and includes an insertion portion 1311 inserted into the inner space of the conductive portion 312B, and a flange portion 1312 extending radially outward from the upper outer surface of the insertion portion 1311.

The plug part 131 has a protruding part 3117 attached to the upper part, and a wiring part 132 along the circumferential direction is provided on the upper surface of the flange part 1312. The wiring portion 132 has one end connected to the protruding portion 3117 and the other end connected to the electrode portion 133. The electrode part 133 extends below the flange part 1312, and when the plug part 131 is inserted into the conductive part 312B, it comes into contact with the peripheral wall 3121 of the conductive part 312B and becomes electrically conductive.

When the plug part 131 is inserted into the conductive part 312B and the heating part 311E is attached to the conductive part 312B, the electrode part 133 of the heating part 311E is connected to one part 3123 of the conductive part 312B that faces the other part 3122 across the slit 3122. 3124. Therefore, when an induced current is generated in the conductive portion 312B, the current flows to the protruding portion 3117 via the electrode portion 133 and the wiring portion 132, and the protruding portion 3117 generates heat.

As described above, in this modification, the plug part 131 holds the protruding part 3117 and maintains the position of the protruding part 3117, and the electrode part 133 and the wiring part 132 electrically connect the protruding part 3117 and the conductive part 312B. A portion for maintaining the position of the protruding portion 3117 and a portion for electrical connection are configured separately. Therefore, the position of the electrode part 133 can be set freely, and the conductive part 312B can be configured so that the electrode part 133 contacts a position where the potential difference is high, for example, parts 3123 and 3124 facing each other with the slit 3122 in between.

<Third embodiment>
FIG. 16 is a diagram showing the configuration of the heater 31F according to the third embodiment, in which (A) is the front of the heater 31F, (B) is the left side of the heater 31F, (C) is the right side of the heater 31F, ( D) shows the top surface of the heater 31F, and (E) shows the bottom surface of the heater 31F. This embodiment is different from the second embodiment described above in the shape of the heater 31F, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31F has a conductive part 312B extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311F connected to one end of the conductive part 312B. The conductive portion 312B has a substantially cylindrical shape extending in the Y-axis direction, and a slit 3122 extending in the Y-axis direction is provided in the peripheral wall 3121.

The heating part 311F is a linear member made of a conductive material, and is arranged at the upper part of the conductive part 312B so as to connect one part 3123 and the other part 3124 facing each other with the slit 3122 in between. be done.

Similar to the first embodiment described above, when a current is supplied to the induction coil 32 in response to the start operation and a fluctuating electromagnetic field is generated, an induced current is generated in the conductive part 312B, and the heating part 311F is generated from the connection parts 3123 and 3124. A current flows through the heating section 311F, and the heating section 311F generates heat. As a result, the aerosol source held by the liquid holding member 22 is heated, and aerosol is generated and provided for suction.

According to this embodiment, the configuration of the heater 31F can be simplified. This reduces the cost of the heater 31F and allows the heater 31F to be easily replaced, thereby improving convenience.

<Fourth embodiment>
FIG. 17 is a diagram showing the configuration of a non-combustion type flavor inhaler according to the fourth embodiment, and FIG. 18 is a diagram showing the configuration of an induction coil 32A. This embodiment is different from the third embodiment described above in the configuration of the induction coil 32A, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

As shown in FIG. 18, the induction coil 32A of this embodiment is a flat coil in which a conducting wire (covered wire) 321 is wound around the Y-axis along a plane (X-Z plane) to form a spiral shape. It is. The induction coil 32A is arranged below the heater 31F and is electrically connected to the control section 34. The induction coil 32A generates a fluctuating electromagnetic field by being supplied with a high frequency AC current from the control unit 34, and generates an induced current in the conductive part 312B of the heater 31F. Then, the current generated in the conductive part 312B flows to the heating part 311F, and the heating part 311F generates heat. As a result, the aerosol source held by the liquid holding member 22 is heated, and aerosol is generated and provided for suction.

Note that in this embodiment, an example is shown in which the same heater 31F as in the third embodiment is used; however, the present invention is not limited to this, and the same heater 31 as in the first embodiment, the second embodiment, or Modifications 1 to 3 is used. 31A, 31B, 31D, and 31E may also be used.

According to this embodiment, since the induction coil 32A is not arranged in the radial direction of the heater 31F, the diameter of the main unit 3 can be reduced.

<Fifth embodiment>
FIG. 19 is a diagram showing the configuration of a heater 31G according to the fifth embodiment, in which (A) is the front of the heater 31G, (B) is the left side of the heater 31G, (C) is the right side of the heater 31G, ( D) shows the top surface of the heater 31G, and (E) shows the bottom surface of the heater 31G. This embodiment is different from the first embodiment described above in the shape of the heater 31G, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31G has a flat conductive part 312G extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311G connected to the upper part of the conductive part 312G. The heating section 311G and the conductive section 312G are formed separately, and the heating section 311G and the conductive section 312G are connected to constitute the heater 31G. The conductive portion 312G is elongated in the Y-axis direction, and has a plate shape with a thickness dimension TA in the Z-axis direction on the left and right side surfaces that is smaller than a width dimension WA in the X-axis direction on the front and back surfaces. The conductive part 312G has connection parts 3125 and 3126 with the heating part 311G near the left and right ends of the upper part.

The heating part 311G is a band-shaped member that protrudes upward and is curved into an arc, and both ends are connected to the connection parts 3125 and 3126 at the upper part of the conductive part 312G. However, the heating part 311G is not limited to this, and may be formed in an inverted V-shape that projects obliquely upward from the connection parts 3125 and 3126 on the central axis C side.

Similar to the first embodiment described above, when a current is supplied to the induction coil 32 in response to the start operation and a fluctuating electromagnetic field is generated, an induced current is generated in the conductive part 312G, and heating occurs via the connection parts 3125 and 3126. A current flows through the portion 311G, and the heating portion 311G generates heat. Further, due to the action of the fluctuating electromagnetic field, an induced current is generated in the heating section 311, so that the heating section 311 generates heat. As a result, the aerosol source held by the liquid holding member 22 is heated, and aerosol is generated and provided for suction.

<Sixth embodiment>
FIG. 20 is a diagram showing the configuration of a heater 31H according to the sixth embodiment, and FIG. 21 is a diagram showing the configuration of a non-combustion flavor inhaler including the heater 31H according to the sixth embodiment. This embodiment is different from the second embodiment described above in the configuration of a conductive portion 312H in a heater 31H, and the other configurations are the same. For this reason, the same elements are given the same reference numerals, and repeated explanations will be omitted.

The heater 31H has a conductive part 312H extending in a uniaxial direction (Y-axis direction in the illustrated example) and a heating part 311B connected to the upper part of the conductive part 312H. The heating part 311B and the conductive part 312H in this example are formed separately, and the heating part 311B and the conductive part 312H are connected to constitute the heater 31H.

The conductive part 312H includes a non-magnetic bobbin 322 and a heater-side coil 323 wound around the outer circumference of the bobbin 322. The bobbin 322 is a cylinder extending in the Y-axis direction, and a conductive wire (covered wire) 321 is wound in the circumferential direction along the outer peripheral surface to form a heater-side coil 323 . The bobbin 322 is made of an insulating material such as resin, for example. This can prevent electrical leakage from the heater side coil 323 to the bobbin 322. In the heater side coil 323, both ends of the conducting wire 321 are connected to the connection parts 3113 and 3114 of the heating section 311B, forming a closed circuit. The heating unit 311B is attached to one end (upper end) of the bobbin 322 in the Y-axis direction. That is, the heating section 311B is held by the bobbin 322 when the bobbin 322 is attached to the main body unit 3. In addition, since the bobbin 322 of this example is insulating, even when the heating part 311B is attached, leakage of current between the connection parts 3113 and 3114 to the bobbin 322 is suppressed.

When the heater 31H is inserted into the housing 37 from the upper opening of the main unit 3 and attached to the main unit 3, the heater side coil 323 is arranged coaxially with the induction coil 32 and inside the induction coil 32, The core 35 is arranged inside the bobbin 322. Note that the conductive portion 312H may include a core 35 instead of the bobbin 322, and the conductive wire 321 may be wound around the outer periphery of the core 35 to form the heater side coil 323.

Similar to the second embodiment described above, when a current is supplied to the induction coil 32 in response to the start operation and a fluctuating electromagnetic field is generated, an induced current is generated in the conductive portion 312H, and heating occurs via the connection portions 3113 and 31114. A current flows through the portion 311H, and the heating portion 311H generates heat. Further, due to the action of the fluctuating electromagnetic field, an induced current is generated in the heating section 311H, so that the heating section 311H generates heat. As a result, the aerosol source held by the liquid holding member 22 is heated, and aerosol is generated and provided for suction.

According to this embodiment, since the conductive portion 312H is constituted by the heater-side coil 323, the induced current flows in a specific direction, improving energy transfer efficiency. Therefore, the time lag from the start of heating until reaching the predetermined temperature is shortened, the waiting time at the start of suction is shortened, and convenience is improved. In this embodiment, an example using the heating section 311B similar to that of the second embodiment is shown, but the present invention is not limited to this. A heating section similar to the heating section 311, the heating section 311D of the second modification, and the heating sections 311F and 311G of the third to fourth embodiments may be used.

<Others>
The configurations described in the embodiments and modified examples described above can be combined as much as possible without departing from the problems and technical idea of the present invention.

1 Non-combustion flavor inhaler 2 Cartridge 3 Main unit 4 Mouthpiece portion 20 Outer shell 21 Reservoir 22 Liquid holding member 30A plate 31 Heater (heating unit)
31, 31A to 31H Heater (heating unit)
32,32A induction coil (inductor)
33 Operation detection unit 34 Control unit 35 Core 36 Battery (power supply)
37 Housing 41 Flavor source 131 Plug section 132 Wiring section 133 Electrode section 151/161 Base wall section 152/162 Flange section 153/163 Outer wall section 158/168 Engagement claw 211, 221 Aerosol channel 222 Contact surface 311, 311B ～ 311H Heating part 312, 312B, 312D, 312G, 312H Conductive part 313 Inner space 321 Conductor wire (covered wire)
322 Bobbin 323 Heater side coil 371 Inlet port 1311 Insertion part 1312 Flange part 3115/3116 Connection part 3117 Projection part 3118 Top plate part

Claims (12)

1. A main body unit of a non-combustion flavor inhaler to which a cartridge including a reservoir for storing an aerosol generation liquid and a liquid holding member for holding the aerosol generation liquid supplied from the reservoir can be attached and detached,
   a heating section that is disposed at a position in contact with the liquid holding member and heats the aerosol generating liquid held by the liquid holding member by generating heat when supplied with electric current; and a heating section that is electrically connected to the heating section and closed. a heating unit having a conductive part forming a circuit;
   an induction coil that generates a magnetic field when supplied with electric power and generates a current in the conductive part by electromagnetic induction;
   a power source that supplies power to the induction coil;
   A main unit of a non-combustible flavor inhaler.
2. The non-combustible flavor suction according to claim 1, wherein the heating section is arranged between the conductive section and a scheduled mounting position where the liquid holding member is arranged when the cartridge is attached to the main body unit. The main unit of the vessel.
3. The non-combustion type flavor inhaler according to claim 2, wherein the heating part includes a connection part with the conductive part and a protrusion part that protrudes toward the planned attachment position of the liquid holding member with respect to the connection part. main unit.
4. The conductive part is
   A slit along the uniaxial direction is provided in a peripheral wall of a cylinder extending in a uniaxial direction, and a part of the peripheral wall is spaced apart by the slit in the circumferential direction,
   When the conductive part is viewed from the side where the liquid retaining member is scheduled to be attached in the uniaxial direction, one part and the other part facing each other across the slit in the circumferential direction of the peripheral wall are respectively of the heating part. The main body unit of a non-combustion type flavor inhaler according to claim 3, which is connected to a connecting portion.
5. 5. The main unit of the non-combustion flavor inhaler according to claim 4, wherein the conductive part is formed so that a length in the uniaxial direction is longer than a length of the heating part.
6. The main unit of the non-combustion flavor inhaler according to claim 4 or 5, wherein the heating part and the conductive part are formed along the same cylinder.
7. The main unit of a non-combustion flavor inhaler according to any one of claims 1 to 6, wherein the heating part is detachable from the conductive part.
8. The heating part includes a plurality of protruding parts,
   The main body of the non-combustion flavor inhaler according to any one of claims 2 to 5, wherein a plurality of the protruding parts are connected to one conductive part, and the plurality of protruding parts are arranged apart from each other. unit.
9. The main unit of a non-combustion flavor inhaler according to any one of claims 1 to 8, wherein the induction coil is arranged so as to surround the conductive part.
10. The main body unit of a non-combustion type flavor inhaler according to any one of claims 4 to 6, wherein a core that increases the density of magnetic flux generated by the induction coil is arranged at a position inside the cylinder.
11. The conductive part includes a base member and a conductive layer provided on the surface of the base member,
    The main unit of the non-combustion flavor inhaler according to any one of claims 1 to 10, wherein the conductive layer is formed of a material having at least one of higher magnetic permeability and higher electrical conductivity than the base member. .
12. A heating unit included in a non-combustion flavor inhaler, which is capable of attaching and detaching a cartridge including a reservoir for storing an aerosol-generating liquid and a liquid holding member for holding the aerosol-generating liquid supplied from the reservoir, the heating unit comprising:
    a heating section that is disposed at a position in contact with the liquid holding member and heats the aerosol generating liquid held by the liquid holding member by generating heat in response to supply of electric current;
    A heating unit comprising: a conductive part that is electrically connected to the heating part to form a closed circuit and supplies a current generated by electromagnetic induction to the heating part.

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