JP7135098B2 - Heating assembly and flavor inhaler with the same - Google Patents

Description

The present invention relates to a heating assembly and flavor inhaler with the same.

2. Description of the Related Art Conventionally, flavor inhalers for inhaling flavor or the like without burning materials are known. As such a flavor inhaler, for example, a smoking material heating device that forms an aerosol by heating a smoking material made of tobacco containing a volatile component is known (see Patent Document 1). A smoking material heating device described in Patent Document 1 has a hollow cylindrical heater.

Japanese Patent Publication No. 2018-522551

SUMMARY OF THE INVENTION It is an object of the present invention to provide a heating assembly and flavor inhaler with a new construction.

According to one aspect of the present invention, a first tubular member having a first opening into which a flavor generating article can be inserted at one end and a second opening forming an air inlet at the other end, a heating member, and heat insulation. A heating assembly is provided comprising: The heating assembly further comprises a second tubular member disposed surrounding the first tubular member, wherein a sealed area is provided between the first tubular member and the second tubular member, and the A heating element and the insulating material are contained in the enclosed area.

According to another aspect of the invention, there is provided a flavor inhaler comprising the heating assembly described above.

1 is an overall perspective view of a flavor inhaler according to this embodiment; FIG. 1 is an overall perspective view of a flavor inhaler according to the present embodiment holding a smoking article; FIG. 1 is a cross-sectional view of a smoking article; FIG. FIG. 1B is a cross-sectional view taken along line 3-3 shown in FIG. 1A; Figure 2 shows a cross-sectional view of the heating assembly; Fig. 3 shows a side view of the heating assembly; FIG. 4 is an enlarged cross-sectional view of the connecting portion between the heating assembly and the outer fin; Figure 3 is an enlarged schematic cross-sectional view of the heating assembly; Fig. 2 is a diagram schematically showing the axial positional relationship between the base portion of the smoking article and the heating member and inner tube of the flavor inhaler of the present embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals, and duplicate descriptions are omitted.

FIG. 1A is an overall perspective view of the flavor inhaler according to this embodiment. FIG. 1B is an overall perspective view of the flavor inhaler according to the present embodiment holding a smoking article. The flavor inhaler 10 according to the present embodiment, for example, heats a smoking article 110 (corresponding to an example of a flavor-generating article) having a flavor source (corresponding to an example of a flavor-generating substrate) including an aerosol source. and configured to generate a flavored aerosol.

As shown in FIGS. 1A and 1B, the flavor inhaler 10 has a top housing 11A, a bottom housing 11B, a cover 12, a switch 13, and a lid portion . The top housing 11A and the bottom housing 11B constitute the outermost housing 11 of the flavor inhaler 10 by being connected to each other. Housing 11 is sized to fit in the hand of a user. When the user uses the flavor inhaler 10, the user can hold the flavor inhaler 10 by hand and inhale the flavor.

The top housing 11A has an opening (not shown), and the cover 12 is coupled to the top housing 11A so as to close the opening. As shown in FIG. 1B, cover 12 has openings 12a into which smoking articles 110 can be inserted. The lid portion 14 is configured to open and close the opening 12 a of the cover 12 . Specifically, the lid portion 14 is attached to the cover 12 and configured to be movable along the surface of the cover 12 between a first position that closes the opening 12a and a second position that opens the opening 12a. . Thereby, the lid part 14 can permit or restrict access of the smoking articles 110 to the inside of the flavor inhaler 10 (openings of the outer fins 17 or openings of the top cap 48, which will be described later).

A switch 13 is used to switch the operation of the flavor inhaler 10 on and off. For example, when the user operates the switch 13 with the smoking article 110 inserted into the opening 12a as shown in FIG. can be heated without When the smoking article 110 is heated, the aerosol evaporates from the aerosol source contained in the smoking article 110 and the aerosol incorporates the flavor of the flavor source. The user can inhale the flavor-containing aerosol by inhaling the portion of the smoking article 110 protruding from the flavor inhaler 10 (the portion illustrated in FIG. 1B). In this specification, the longitudinal direction of the flavor inhaler 10 refers to the direction in which the smoking article 110 is inserted into the opening 12a.

Next, the configuration of the smoking article 110 used in the flavor inhaler 10 according to this embodiment will be described. FIG. 2 is a cross-sectional view of smoking article 110 . In the embodiment shown in FIG. 2, the smoking article 110 includes a base material portion 110A including a filler 111 (corresponding to an example of a flavor-generating base material) and a first wrapping paper 112 around which the filler 111 is wrapped. and a mouthpiece portion 110B forming an end opposite to the base portion 110A. The base material portion 110A and the mouthpiece portion 110B are connected by a second wrapping paper 113 different from the first wrapping paper 112 . However, it is also possible to omit the second wrapping paper 113 and use the first wrapping paper 112 to connect the base portion 110A and the mouthpiece portion 110B.

The mouthpiece portion 110B in FIG. 2 has a paper tube portion 114 , a filter portion 115 , and a hollow segment portion 116 arranged between the paper tube portion 114 and the filter portion 115 . The hollow segment portion 116 is composed of, for example, a packing layer having one or more hollow channels and a plug wrapper covering the packing layer. Since the packed bed has a high packing density of fibers, air and aerosol flow only through the hollow channels during suction, and hardly flow inside the packed bed. In the smoking article 110, when it is desired to reduce the reduction of the aerosol component due to filtration in the filter portion 115, shortening the length of the filter portion 115 and replacing it with the hollow segment portion 116 is effective for increasing the delivery amount of aerosol. is.

Although the mouthpiece 110B in FIG. 2 is composed of three segments, in this embodiment, the mouthpiece 110B may be composed of one or two segments, or four or more segments. may be configured. For example, the hollow segment portion 116 may be omitted, and the paper tube portion 114 and the filter portion 115 may be arranged adjacent to each other to form the mouthpiece portion 110B.

In the embodiment shown in FIG. 2, the longitudinal length of the smoking article 110 is preferably 40 mm or more and 90 mm or less, more preferably 50 mm or more and 75 mm or less, and even more preferably 50 mm or more and 60 mm or less. . The circumference of smoking article 110 is preferably between 15 mm and 25 mm, more preferably between 17 mm and 24 mm, and even more preferably between 20 mm and 23 mm. In the smoking article 110, the base portion 110A may have a length of 20 mm, the first wrapping paper 112 may have a length of 20 mm, the hollow segment portion 116 may have a length of 8 mm, and the filter portion 115 may have a length of 7 mm. , the length of each of these segments can be changed as appropriate according to manufacturability, required quality, and the like.

In this embodiment, the fill 111 of the smoking article 110 may contain an aerosol source that is heated at a predetermined temperature to generate an aerosol. The type of aerosol source is not particularly limited, and extracts from various natural products and/or constituents thereof can be selected depending on the application. Aerosol sources can include, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol source in the filling 111 is not particularly limited, and is usually 5% by weight or more, preferably 10% by weight or more, from the viewpoint of sufficiently generating an aerosol and imparting a good flavor and taste. It is usually 50% by weight or less, preferably 20% by weight or less.

The filling 111 of the smoking article 110 in this embodiment may contain tobacco cuts as a flavor source. Materials for shredded tobacco are not particularly limited, and known materials such as lamina and backbone can be used. The range of content of filler 111 in smoking article 110 is, for example, 200 mg or more and 400 mg or less, preferably 250 mg or more and 320 mg or less, when the circumference is 22 mm and the length is 20 mm. The water content of the filler 111 is, for example, 8% by weight or more and 18% by weight or less, preferably 10% by weight or more and 16% by weight or less. Such a water content suppresses the occurrence of winding stains and improves the winding suitability during manufacturing of the base material portion 110A. There are no particular restrictions on the size of the shredded tobacco used as the filling 111 and the preparation method thereof. For example, dried tobacco leaves cut into pieces having a width of 0.8 mm or more and 1.2 mm or less may be used. Alternatively, dried tobacco leaves are pulverized to have an average particle size of about 20 μm or more and 200 μm or less and homogenized. good too. Furthermore, the above-described sheet-processed material may be gathered without being chopped, and used as the filling material 111 . Also, the filling 111 may contain one or more perfumes. The type of flavoring agent is not particularly limited, but menthol is preferable from the viewpoint of imparting a good smoking taste.

In this embodiment, the first wrapping paper 112 and the second wrapping paper 113 of the smoking article 110 can be made from base paper having a basis weight of, for example, 20 gsm to 65 gsm, preferably 25 gsm to 45 gsm. Although the thickness of the first wrapping paper 112 and the second wrapping paper 113 is not particularly limited, it is 10 μm or more and 100 μm or less, preferably 20 μm or more and 75 μm or less from the viewpoint of rigidity, air permeability, and ease of adjustment during paper manufacturing. and more preferably 30 μm or more and 50 μm or less.

In this embodiment, first wrapper 112 and second wrapper 113 of smoking article 110 may include filler. The content of the filler can be 10% by weight or more and less than 60% by weight, preferably 15% by weight or more and 45% by weight or less, based on the total weight of the first wrapping paper 112 and the second wrapping paper 113. . In the present embodiment, the filler is preferably 15% by weight or more and 45% by weight or less with respect to the preferred basis weight range (25 gsm or more and 45 gsm or less). Examples of fillers that can be used include calcium carbonate, titanium dioxide, and kaolin. The paper containing such a filler exhibits a bright white color that is preferable from the viewpoint of appearance when used as wrapping paper for the smoking article 110, and can permanently maintain its whiteness. By including a large amount of such fillers, for example, the ISO whiteness of the wrapping paper can be increased to 83% or higher. From the practical viewpoint of using them as wrapping papers for smoking articles 110, first wrapping paper 112 and second wrapping paper 113 preferably have a tensile strength of 8 N/15 mm or more. This tensile strength can be increased by lowering the filler content. Specifically, it can be increased by making the content of the filler less than the upper limit of the content of the filler shown in each basis weight range exemplified above.

Next, the internal structure of the flavor inhaler 10 shown in FIGS. 1A and 1B will be described. FIG. 3 is a cross-sectional view taken along line 3-3 shown in FIG. 1A. As shown in FIG. 3 , the flavor inhaler 10 has a power source section 20 , a circuit section 30 and a heating section 40 in the internal space of the housing 11 . The circuit section 30 has a first circuit board 31 and a second circuit board 32 electrically connected to the first circuit board 31 . The first circuit board 31 is, for example, arranged to extend in the longitudinal direction as shown. Thus, the power source section 20 and the heating section 40 are partitioned by the first circuit board 31 . As a result, transmission of heat generated in the heating unit 40 to the power supply unit 20 is suppressed.

The second circuit board 32 is arranged between the power supply section 20 and the switch 13 and extends in a direction orthogonal to the extending direction of the first circuit board 31 . The switch 13 is arranged adjacent to the second circuit board 32 . A portion of the switch 13 may come into contact with the second circuit board 32 when the user presses the switch 13 .

The first circuit board 31 and the second circuit board 32 include, for example, a microprocessor or the like, and can control power supply from the power supply unit 20 to the heating unit 40 . Thereby, the first circuit board 31 and the second circuit board 32 can control the heating of the smoking article 110 by the heating section 40 .

The power supply unit 20 has a power supply 21 electrically connected to the first circuit board 31 and the second circuit board 32 . Power source 21 may be, for example, a rechargeable battery or a non-rechargeable battery. The power supply 21 is electrically connected to the heating section 40 via at least one of the first circuit board 31 and the second circuit board 32 . This allows the power source 21 to power the heating portion 40 so as to properly heat the smoking article 110 . Also, as shown, the power supply 21 is arranged adjacent to the heating assembly 41 in a direction orthogonal to the longitudinal direction of the heating section 40 . Thereby, even if the size of the power source 21 is increased, it is possible to suppress the longitudinal length of the flavor inhaler 10 from increasing.

The flavor inhaler 10 also has a terminal 22 that can be connected to an external power source. The terminal 22 can be connected to a cable such as micro USB. When the power source 21 is a rechargeable battery, by connecting an external power source to the terminal 22, a current can flow from the external power source to the power source 21 and the power source 21 can be charged. By connecting a data communication cable such as a micro USB to the terminal 22, data related to the operation of the flavor inhaler 10 may be transmitted to an external device.

The heating section 40 has a longitudinally extending heating assembly 41 as shown. The heating assembly 41 is composed of a plurality of tubular members and forms a tubular body as a whole. The heating assembly 41 is configured to accommodate a portion of the smoking article 110 therein, has the function of defining a flow path for air supplied to the smoking article 110, and the function of heating the smoking article 110 from its outer periphery.

The bottom housing 11B is formed with a vent 15 (corresponding to an example of an air inlet) for allowing air to flow into the interior of the heating assembly 41 . Specifically, vent 15 is in fluid communication with one end of heating assembly 41 (the left end in FIG. 3). The flavor inhaler 10 also has a detachable cap 16 on the vent 15 . The cap 16 is configured to allow air to flow into the heating assembly 41 through the vent 15 even when attached to the vent 15, and may have, for example, a through hole or notch (not shown). By attaching the cap 16 to the vent 15 , substances generated from the smoking articles 110 inserted into the heating assembly 41 can be prevented from falling out of the housing 11 through the vent 15 .

The other end of the heating assembly 41 (the right end in FIG. 3) is in fluid communication with the opening 12a shown in FIG. 1B (which corresponds to one example of an air outlet). A substantially cylindrical outer fin 17 is provided between the cover 12 having the opening 12 a and the other end of the heating assembly 41 . The outer fin 17 engages with a downstream end of a top cap 48, which will be described later. When the smoking article 110 is inserted into the interior of the flavor inhaler 10 through the opening 12a of the cover 12 as shown in FIG. Located inside the heating assembly 41 . That is, the outer fins 17 form part of the opening for receiving the smoking article 110 . The outer fin 17 is preferably formed so that the opening on the cover 12 side (right side in FIG. 3) is larger than the opening on the heating assembly 41 side (left side in FIG. 3). This makes it easier to insert the smoking article 110 into the outer fin 17 through the opening 12a. Further, when the smoking article 110 is not inserted inside the heating assembly 41, the user can clean the inside of the heating assembly 41 by inserting a tool such as a brush through the opening 12a. Cleaning implements can also be inserted through one end of the heating assembly 41 (the left end in FIG. 3). In that case, the cap 16 is removed from the vent 15 of the flavor inhaler 10 .

With the smoking article 110 inserted into the flavor inhaler 10 through the opening 12a as shown in FIG. Suctioning 115 causes air to flow into the interior of heating assembly 41 through vent 15 . The incoming air passes through the interior of the heating assembly 41 and reaches the user's mouth along with the aerosol generated from the smoking article 110 . Therefore, the side of the heating assembly 41 closer to the vent 15 is the upstream side, and the side of the heating assembly 41 closer to the opening 12a (the side closer to the outer fins 17) is the downstream side.

Next, the configuration of the heating assembly 41 shown in FIG. 3 will be described in detail. FIG. 4 shows a cross-sectional view of heating assembly 41 . 5 also shows a side view of the heating assembly 41. FIG. The heating assembly 41 includes an inner tube 42 (corresponding to an example of a first tubular member), a heating member 43, an airgel 44 (corresponding to an example of a heat insulating material), and an outer tube 45 (corresponding to an example of a second tubular member). corresponding to an example) and The inner tube 42 has a first opening 42a at one end through which the smoking article 110 can be inserted, and a second opening 42b at the other end forming an air inlet. In this embodiment, inner tube 42 is cylindrically shaped and configured to contact at least a portion of smoking article 110 inserted through first opening 42a. The second opening 42b is located on the upstream side of the air flow, and the first opening 42a is located on the downstream side.

The outer tube 45 is arranged to surround the inner tube 42 and a predetermined gap is formed between the inner tube 42 and the outer tube 45 . The heating member 43 may be, for example, a flexible film heater configured by sandwiching a heating resistor between two films such as PI (polyimide). A heating member 43 is arranged to abut the inner tube 42 . Specifically, in the illustrated example, the heating member 43 is arranged on the outer peripheral side of the inner tube 42 , and the inner surface of the heating member 43 contacts the outer surface of the inner tube 42 . Since the heating member 43 is arranged along the outer peripheral surface of the inner tube 42, the heating member 43 is deformed into a substantially cylindrical shape as a whole.

The heating assembly 41 further comprises the downstream end of the inner tube 42 (the end on the first opening 42a side) and the downstream end of the outer tube 45 (the end of the inner tube 42 near the first opening 42a). ) and a circumferentially extending first annular member 46 . In addition, the heating assembly 41 includes the upstream end of the inner tube 42 (the end on the second opening 42b side) and the upstream end of the outer tube 45 (the end near the second opening 42b of the inner tube 42). ) and has a second annular member 47 extending in the circumferential direction. The first annular member 46 is tightly connected to the downstream end of the inner tube 42 via a top cap 48 and a heat-shrinkable tube 52 which will be described later. The second annular member 47 is tightly connected to the upstream end of the inner tube 42 via a bottom cap 50 and a heat-shrinkable tube 52 which will be described later. Also, the first annular member 46 and the second annular member are tightly connected to the outer tube 45 . A sealed area 54 is thereby provided between the inner tube 42 and the outer tube 45 . The enclosed area 54 accommodates the heating member 43 and the airgel 44 .

A heat-shrinkable tube 52 is arranged between the heating member 43 and the airgel 44 . The heat-shrinkable tube 52 is cylindrical and keeps the heating member 43 in contact with the inner tube 42 . Specifically, the heat-shrinkable tube 52 is heat-shrunk by applying heat while it is placed on the outer peripheral side of the heating member 43 . 43 is stressed. The heat-shrinkable tube 52 may be made of thermoplastic resin such as perfluoroalkoxy fluororesin (PFA), for example. In this embodiment, the heat-shrinkable tube 52 is used for the purpose of maintaining the state in which the heating member 43 is in contact with the inner tube 42. However, the present invention is not limited to this, and any member that can achieve the same purpose can be used. can be adopted. For example, instead of the heat-shrinkable tube 52, an elastic tube or the like may be employed.

The inner tube 42 is preferably made of a metallic material such as SUS having high thermal conductivity. Thereby, the heat of the heating member 43 is easily conducted to the entire inner tube 42, and as a result, the inner tube 42 itself can exhibit the function of the heating means. The outer tube 45 can be made of the same metal material as the inner tube 42, for example. Since the airgel 44 is arranged between the heating member 43 and the outer tube 45 , heat generated from the heating member 43 is less likely to be transmitted to the outer tube 45 . The present embodiment employs an airgel 44 to insulate the heat generated by the heating member 43, which can be made of various airgel materials such as silica aerogel, carbon aerogel, alumina aerogel, and the like. However, other heat insulating materials may be used instead of airgel, for example, fiber heat insulating materials such as glass wool and rock wool, foam heat insulating materials such as urethane foam and phenol foam, and the like may be used. Alternatively, the sealed area 54 may be evacuated to form a vacuum insulation space. When the airgel 44 is used as a heat insulating material, the volume of the airgel 44 preferably accounts for 85% or more and 100% or less of the volume of the sealed area 54 . As a result, it is possible to prevent air bubbles from entering the closed space 54, thereby preventing the heat of the heating member 43, the inner tube 42, and the like from being transmitted to the outer tube 45 via the air bubbles. If air bubbles enter the closed space 54, the air bubbles can move freely according to the orientation of the heating assembly 41 and transfer heat.

Heating assembly 41 further includes a top cap 48 and a bottom cap 50 . The top cap 48 and the bottom cap 50 can be made of resin material, for example. The top cap 48 is a cylindrical member having an internal space that communicates with the first opening 42a of the inner tube 42, and is configured so that the smoking article 110 can be inserted therein. Also, as shown in FIGS. 4 and 5, the top cap 48 is connected to the downstream end of the inner tube 42 (the end on the first opening 42a side). The inner peripheral surface of the top cap 48 is provided with one or more protrusions 48a that are evenly spaced apart in the circumferential direction. In this embodiment, four protrusions 48 a are provided on the inner peripheral surface of the top cap 48 . As a result, the smoking article 110 inserted into the top cap 48 is locked by applying frictional resistance, and the smoking article 110 is prevented from being unexpectedly pulled out of the flavor inhaler 10 .

The bottom cap 50 is an elongated cylindrical member having a downstream end 50a connected to the upstream end of the inner tube 42 (the end on the second opening 42b side) and an upstream end 50b opposite to the downstream end 50a. The bottom cap 50 forms an internal flow path that introduces air toward the second opening 42 b of the inner tube 42 . Also, an upstream end 50b (lower end in the figure) of the bottom cap 50 is arranged close to or adjacent to the vent 15 shown in FIG. Air from this vent 15 can flow from the upstream end 50b of the bottom cap 50 to the downstream end 50a, pass through the inner tube 42 and the top cap 48, and reach the user's mouth. That is, the bottom cap 50, the inner tube 42, and the top cap 48 form an air flow path 70 that pneumatically communicates the vent 15 and the opening 12a of the cover 12 with each other.

Next, the details of the connecting portion between the heating assembly 41 and the outer fins 17 will be described. FIG. 6 is an enlarged sectional view of the connecting portion between the heating assembly 41 and the outer fins 17. As shown in FIG. As shown in FIG. 6, a hollow rubber material 24 is provided at the connecting portion between the outer fin 17 and the top cap 48 . Specifically, the upstream end of the outer fin 17 (the end on the first opening 42 a side) surrounds at least a portion of the outer periphery of the top cap 48 , specifically the outer periphery of the downstream end of the top cap 48 . That is, the upstream end of the outer fin 17 has an inner diameter larger than the outer diameter of the downstream end of the inner tube 42 to accommodate the downstream end of the top cap 48 . The outer fin 17 has an accommodation portion 17 a for accommodating the rubber material 24 . Specifically, the housing portion 17 a of the outer fin 17 forms a predetermined gap with the outer surface of the top cap 48 . The rubber material 24 is annular and extends circumferentially between the outer peripheral surface of the top cap 48 and the inner peripheral surface of the outer fins 17 . Thereby, the gap between the top cap 48 and the outer fin 17 is sealed. The rubber material 24 may have a solid structure instead of a hollow structure.

Next, the relative positional relationship among the inner tube 42, heating member 43, airgel 44, outer tube 45, top cap 48, bottom cap 50, and heat-shrinkable tube 52 will be described. FIG. 7 is an enlarged schematic cross-sectional view of heating assembly 41 . FIG. 7 is for explaining the relative positional relationship of the components of the heating assembly 41, and the specific shapes, dimensions, etc. thereof may differ from the actual ones. 7, the upstream side (lower side in the drawing) of the bottom cap 50 is omitted from illustration.

As shown, the upstream end of the top cap 48 (the end closer to the first opening 42a) surrounds the outer circumference of the downstream end of the inner tube 42 (the end closer to the first opening 42a). That is, the upstream end of top cap 48 has an inner diameter larger than the outer diameter of the downstream end of inner tube 42 to accommodate the downstream end of inner tube 42 . The connecting portion between the inner surface of the top cap 48 and the outer surface of the inner tube 42 is sealed, for example, with an adhesive or the like so that gas or aerosol cannot pass through the gap between the top cap 48 and the inner tube 42 . The downstream end of the heat-shrinkable tube 52 (the end on the side of the first opening 42 a ) surrounds the outer circumference of the upstream end of the top cap 48 . A heat shrink tube 52 is tightly attached to the upstream end of the top cap 48 . Thus, the heating assembly 41 has axially overlapping regions between the top cap 48 and the inner tube 42 and between the top cap 48 and the heat shrink tubing 52 . Also, the overlapped regions are closely attached or sealed to each other. Thereby, the sealing between the top cap 48, the inner tube 42, and the heat shrinkable tube 52 can be improved.

Further, the downstream end 50a (end near the second opening 42b) of the bottom cap 50 surrounds the outer periphery of the upstream end (end near the second opening 42b) of the inner pipe 42. As shown in FIG. That is, the downstream end 50 a of the bottom cap 50 has an inner diameter larger than the outer diameter of the upstream end of the inner tube 42 to accommodate the upstream end of the inner tube 42 . The connecting portion between the inner surface of the bottom cap 50 and the outer surface of the inner tube 42 is adhered, for example, with an adhesive or the like so that gas or aerosol does not pass through the gap between the bottom cap 50 and the inner tube 42 . The upstream end of the heat-shrinkable tube 52 (the end on the second opening 42b side) surrounds the outer circumference of the downstream end 50a of the bottom cap 50 . The heat-shrinkable tube 52 is in tight contact with the downstream end 50a of the bottom cap 50 . Thus, the heating assembly 41 has axially overlapping regions between the bottom cap 50 and the inner tube 42 and between the bottom cap 50 and the heat shrink tubing 52 . Also, the overlapped regions are closely attached or sealed to each other. Thereby, the sealing between the bottom cap 50, the inner tube 42, and the heat-shrinkable tube 52 can be improved.

As shown, the top cap 48, inner tube 42, and bottom cap 50 are arranged axially side-by-side and hermetically connected adjacent to each other to form a closed tubular assembly. In this tubular assembly, the junction between the top cap 48 and the inner tube cap and the junction between the inner tube 42 and the bottom cap 50 each have a sealed structure that withstands a negative pressure of 40 kPa or more and 60 kPa or less based on atmospheric pressure. can. In particular, each joint preferably has a sealed structure that withstands a negative pressure of 45 kPa or more and 55 kPa or less, and typically preferably has a sealed structure that withstands a negative pressure of 50 kPa.

Whether or not each joint has the desired sealing structure can be tested, for example, by the method described below. First, with one opening of the top cap 48 and the bottom cap 50 closed, a negative pressure is formed inside the tubular assembly by sucking from the other opening with a vacuum pump or the like. When the negative pressure inside the tubular assembly reaches a desired value (for example, 50 kPa), the suction is stopped, and the change in pressure inside the tubular assembly is measured when this state is left for a certain period of time. When the pressure change at this time is smaller than a predetermined threshold value, it is determined that each joint has the desired sealing performance. The above-mentioned standing time after stopping the suction is, for example, 3 seconds, and the threshold value of the pressure change is 2.3 kPa.

The bottom cap 50 has a small diameter portion 50c having an inner diameter smaller than the inner diameter of the inner tube 42 . A stepped locking portion 50d is formed by the portion of the bottom cap 50 surrounding the outer periphery of the upstream end of the inner tube 42 and the small diameter portion 50c. In other words, the locking portion 50d is a surface substantially perpendicular to the axial direction of the inner tube 42 . As shown, the upstream end of the inner tube 42 is arranged to abut against the locking portion 50d. Further, the diameter of the small diameter portion 50c is designed so that the tip of the smoking article 110 abuts against the engaging portion 50d when the smoking article 110 is inserted through the first opening 42a. This allows the smoking article 110 to be positioned.

As illustrated, the downstream end (the end on the side of the first opening 42 a ) and the upstream end (the end on the side of the second opening 42 b ) of the inner tube 42 are configured to protrude outside the outer tube 45 . Also, as shown, the heating member 43 is axially arranged to fit between the upstream end and the downstream end of the outer tube 45 . In other words, the heating member 43 is configured so as not to come into contact with the upstream end of the inner tube 42 projecting outside the outer tube 45 . As a result, the temperature at the upstream end of the inner pipe 42 becomes lower than the temperature at the central portion of the inner pipe 42 in the axial direction. As a result, when the smoking article 110 is inserted through the first opening 42a and the smoking article 110 is in contact with the engaging portion 50d, heating of the tip portion of the smoking article 110 can be suppressed. It is possible to prevent unintended aerosol generation from Also, the relatively cool temperature at the tip of the smoking article 110 promotes condensation and collection of aerosols there, thus preventing backflow of aerosols generated downstream through the air flow path 70 . can.

The axial length of the heat-shrinkable tube 52 is substantially the same as the axial length of the inner tube 42 . The heat shrinkable tube 52 is longer than the heating member 43 in the axial direction, and the heating member 43 is positioned between the upstream end and the downstream end of the heat shrinkable tube 52 . Thereby, the heat-shrinkable tube 52 can cover the entire heating member 43 , and the heating member 43 can be brought into uniform contact with the inner tube 42 . The airgel 44 extends axially at least between the upstream and downstream ends of the heating member 43 . Thereby, the heat generated from the heating member 43 can be efficiently blocked.

The upstream end of the top cap 48 (the end near the first opening 42a) is positioned upstream (lower in the figure) than the downstream end of the outer tube 45 (the end near the first opening 42a). A downstream end 50 a of the bottom cap 50 is located outside the outer tube 45 . The upstream end of the heat-shrinkable tube 52 (the end closer to the second opening 42b) protrudes outside the outer tube 45 and surrounds the bottom cap 50 as described above.

Since the first annular member 46 and the second annular member 47 are in substantial contact with the inner tube 42 and the outer tube 45, when they are formed of a material with high thermal conductivity, the heat of the inner tube 42 is reduced. Much can be transmitted to outer tube 45 via first annular member 46 and second annular member 47 . Therefore, in this embodiment, the first annular member 46 and the second annular member 47 can be made of a material with lower thermal conductivity than the inner tube 42 and the outer tube 45 . Specifically, for example, it may be formed of a resin such as a UV curable resin or an ultraviolet curable resin. Thereby, heat transfer from the inner tube 42 to the outer tube 45 can be suppressed.

The heating assembly 41 has a heater tail 56 that electrically connects the heating member 43 with the circuit section 30 (which corresponds to an example of a control section) shown in FIG. As shown in FIG. 7, at least a portion of heater tail 56 extends along the outer surface of inner tube 42 and bottom cap 50 and protrudes outside sealing area 54 .

The inner diameter of bottom cap 50 may be constant from downstream end 50a to upstream end 50b. Alternatively, the inner surface of the bottom cap 50 may be tapered so that the inner diameter of the bottom cap 50 increases from the downstream end 50a toward the upstream end 50b. When the maximum inner diameter of the bottom cap 50 is Dmax and the inner diameter of the inner tube 42 is Dc, the ratio of Dc to Dmax (Dc/Dmax) is, for example, 1.4 or more and 2.34 or less, or 1.56 or more and 2 It is preferably less than 0.01, typically 1.75. Therefore, when the inner diameter Dc of the inner tube 42 is 7.00 mm, the maximum diameter Dmax of the bottom cap 50 is, for example, 2.99 mm or more and 4.99 mm or less, preferably 3.49 mm or more and 4.49 mm or less. , typically 3.99 mm. When the diameter of the smoking article 110 is close to the inner diameter of the inner tube 42 , if the maximum diameter of the bottom cap 50 and the maximum inner diameter of the inner tube 42 are within the above range, the tip of the smoking article 110 will be attached to the engaging portion of the bottom cap 50 . A sufficient air flow path 70 can be ensured while being securely held by 50d. The diameter of the bottom cap 50 here excludes the inner diameter of the portion surrounding the inner tube 42 and includes the inner diameter of the small diameter portion 50c.

Next, the positional relationship between the smoking article 110 and the heating assembly 41 when the smoking article 110 is inserted into the flavor inhaler 10 will be described. FIG. 8 shows a simplified axial positional relationship between the base portion 110A of the smoking article 110 and the heating member 43 and the inner tube 42 of the flavor inhaler 10 of the present embodiment. FIG. 4 is a diagram showing; The axis here means the central axis of the first opening 42a in the flavor inhaler 10, and when the smoking article 110 is inserted into the first opening 42a, the axis and the central axis of the smoking article 110 are partially aligned. overlaps.

When the axial length of the heating member 43 is D0 and the axial length of the base portion 110A of the smoking article 110 is L0, the length D0 can be smaller than the length L0 (D0< L0). Furthermore, the ratio of the length D0 to the length L0 (D0/L0) is 0.70 or more and 0.90 or less, preferably 0.75 or more and 0.85 or less, and typically 0.80. It's okay. Therefore, when the length L0 of the base portion 110A is 20 mm, the length D0 of the heating member 43 is 14 mm or more and 18 mm or less, preferably 15 mm or more and 17 mm or less, and typically 16 mm. By setting the ratio of the length D0 to the length L0 (D0/L0) within the above range, the heating member 43 can be downsized in the length direction while achieving a desired aerosol generation amount.

Referring to FIG. 8, the upstream end of the substrate portion 110A may protrude upstream of the upstream end of the heating member 43 by a length D1. The terms "upstream" and "downstream" here correspond to the upstream and downstream of the air flow passing through the air flow path 70 by the user's suction operation (see FIG. 4). Since the portion of the substrate portion 110A protruding from the heating member 43 does not have the heating member 43 radially outward thereof, its internal temperature can be somewhat lower than that of other portions of the substrate portion 110A. . As a result, the generation of aerosols at and near the upstream end of the base material portion 110A can be suppressed, so that the aerosols generated there are prevented from condensing in the air flow path or flowing back through the air flow path and leaking out of the apparatus. can be prevented. The ratio (D1/L0) of the protrusion length D1 to the length L0 of the entire base portion 110A is 0.25 or more and 0.40 or less, preferably 0.30 or more and 0.35 or less, and is typically may be 0.325. Therefore, when the length L0 of the entire base portion 110A is 20 mm, the protrusion length D1 is 5 mm or more and 8 mm or less, preferably 6 mm or more and 7 mm or less, and may typically be 6.5 mm. The protrusion length D1 here can also be said to be the distance in the axial direction between the upstream end of the heating member 43 and the upstream end of the inner tube 42 . By setting the ratio (D1/L0) of the protrusion length D1 to the length L0 within the above range, while suppressing the generation of aerosols at and near the upstream end of the base portion 110A, the base portion 110A Sufficient aerosol generation in other parts can be achieved.

Referring to FIG. 8, the downstream end of the heating member 43 may protrude by a length D2 downstream from the downstream end of the substrate portion 110A. As a result, the downstream end of the base material portion 110A and the vicinity thereof can be sufficiently heated, so that it is possible to prevent insufficient aerosol generation and occurrence of aerosol condensation there. A ratio (D2/L0) of the projection length D2 of the heating member 43 to the length L0 of the base portion 110A is 0.075 or more and 0.175 or less, preferably 0.1 or more and 0.15 or less, It may typically be 0.125. Therefore, when the length L0 of the base material portion 110A is 20 mm, the protrusion length D2 of the heating member 43 is 1.5 mm or more and 3.5 mm or less, preferably 2 mm or more and 3 mm or less, and typically 2 mm. 0.5 mm. By setting the ratio (D2/L0) of the projection length D2 to the length L0 within the above range, the heating member 43 can generate sufficient aerosol at and near the downstream end of the base material portion 110A. can be suppressed from increasing in size in the length direction.

The axial positions of the upstream end of the inner tube 42 and the upstream end of the base material portion 110A may generally coincide. On the other hand, like the downstream end of the heating member 43, the downstream end of the inner tube 42 may protrude by a length D3 downstream from the downstream end of the base material portion 110A. As a result, in addition to the downstream end of the base material portion 110A and its vicinity, the upstream end of the paper tube portion 114 and its vicinity can be heated, so that the aerosol generated from the base material portion 110A is heated to the upstream end of the paper tube portion 114 and its vicinity. Excessive cooling and condensation in the vicinity can be prevented. The ratio (D3/D2) of the protrusion length D3 of the inner tube 42 to the protrusion length D2 of the heating member 43 is 2.6 or more and 3.4 or less, preferably 2.8 or more and 3.2 or less, It may typically be 3.0. Therefore, when the protrusion length D2 of the heating member 43 is 2.5 mm, the protrusion length D3 of the inner tube 42 is 6.5 mm or more and 8.5 mm or less, preferably 7.0 mm or more and 8.0 mm or less. , typically 7.5 mm. By setting the ratio (D3/D2) of the protrusion length D3 to the protrusion length D2 within the above range, the heating member 43 is prevented from aerosol condensation at and near the upstream end of the paper tube portion 114. It is possible to suppress an increase in size in the length direction.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical ideas described in the claims, specification and drawings. is possible. Any shape or material that is not directly described in the specification and drawings is within the scope of the technical concept of the present invention as long as it produces the action and effect of the present invention.

Some of the forms disclosed in this specification are described below.

According to the first embodiment, a first cylindrical member having at one end a first opening into which a flavor generating article can be inserted and at the other end a second opening forming an air inlet, a heating member, and a heat insulating material. A heating assembly is provided. The heating assembly further comprises a second tubular member disposed surrounding the first tubular member, wherein a sealed area is provided between the first tubular member and the second tubular member, and the A heating element and the insulating material are contained in the enclosed area.

According to a second aspect, in the heating assembly of the first aspect, the heating member abuts against the first tubular member, and the first tubular member is made of a metal material.

According to a third aspect, in the heating assembly of the first aspect or the second aspect, the heating member is provided on the outer peripheral side of the first cylindrical member, and the first heating member is provided between the heating member and the heat insulating material. is provided, wherein the first resin material applies stress to the heating member so as to press the heating member against the first tubular member.

According to a fourth aspect, in the heating assembly of the third aspect, the first resin material thermally shrinks to apply stress to the heating member so as to press the heating member against the first tubular member. .

According to a fifth aspect, in the heating assembly of the third aspect or the fourth aspect, an upstream end of the first resin material near the second opening protrudes outside the second tubular member.

According to a sixth aspect, the heating assembly of the fifth aspect has a third tubular member into which the flavor-generating article can be inserted and having an internal space communicating with the first opening of the first tubular member. The third cylindrical member is connected to the downstream end of the first cylindrical member on the side of the first opening, and the downstream end of the first resin material near the first opening is connected to the third cylindrical member. It surrounds the outer circumference of the upstream end connected to the first opening of the tubular member.

According to a seventh aspect, in the heating assembly of the sixth aspect, the upstream end of the third tubular member surrounds the downstream end of the first tubular member.

According to an eighth embodiment, in the heating assembly according to any one of the third to seventh embodiments, the length in the axial direction of the first resin material is substantially the same as the length in the axial direction of the first tubular member. is.

According to a ninth mode, in the heating assembly according to any one of the third to eighth modes, the first resin material is longer than the heating member in the axial direction, and the heating member is longer than the first heating member. It is located between an upstream end of the resin material near the second opening and a downstream end near the first opening.

According to a tenth form, in the heating assembly according to any one of the third to ninth forms, the heating assembly is connected to the upstream end of the first tubular member on the second opening side, and the 2 having a fourth cylindrical member forming an internal flow path for introducing air toward the opening, and the upstream end of the first resin material near the second opening extends along the outer periphery of the fourth cylindrical member. surround.

According to an eleventh form, in the heating assembly according to the tenth form, a downstream end of the fourth tubular member near the second opening surrounds an outer circumference of the upstream end of the first tubular member.

According to a twelfth aspect, in the heating assembly according to any one of the first to eleventh aspects, the upstream end of the first cylindrical member on the second opening side and the downstream end on the first opening side Projecting outwardly of two tubular members, the heating member is axially received between an upstream end of the second tubular member near the second opening and a downstream end near the first opening.

According to a thirteenth aspect, in the heating assembly of any one of the first to twelfth aspects, the heat insulating material is axially disposed at least at an upstream end of the heating member near the second opening and at the first opening. Extends between the near downstream ends.

According to a fourteenth aspect, in the heating assembly according to any one of the first to thirteenth aspects, the end of the first tubular member on the first opening side and the first opening of the second tubular member and between the end of the first cylindrical member on the side of the second opening and the end of the second cylindrical member near the second opening, extending in the circumferential direction. with an annular member present.

According to a fifteenth aspect, in the heating assembly of the fourteenth aspect, the annular member is made of a material having lower thermal conductivity than the first tubular member and the second tubular member.

According to a sixteenth aspect, in the heating assembly of any of the first through fifteenth aspects, the insulating material comprises airgel.

According to the seventeenth mode, in the heating assembly of the sixteenth mode, the ratio of the volume of the heat insulating material to the volume of the sealed area is 85% or more and 100% or less.

According to an eighteenth aspect, the heating assembly of any one of the first to seventeenth aspects has a heater tail that electrically connects the heating member to a control unit, at least a portion of the heater tail comprising the It extends along the outer surface of the first cylindrical member and protrudes outside the sealing area.

According to a nineteenth aspect, in the heating assembly of any one of the first to eighteenth aspects, the heating member is configured to heat the flavor generating article, wherein the axis of the flavor generating substrate of the flavor generating article is heated. When the length in the direction is L0 and the length in the axial direction of the heating member is D0, D0/L0 is 0.7 or more and 0.9 or less.

According to the twentieth form, in the heating assembly of the nineteenth form, D0/L0 is 0.75 or more and 0.85 or less.

According to a twenty-first aspect, in the heating assembly of any one of the first to twentieth aspects, the heating member is configured to heat the flavor-generating article, wherein the axis of the flavor-generating substrate of the flavor-generating article is heated. When the length in the direction is L0 and the distance in the axial direction between the upstream end of the heating member and the upstream end of the first cylindrical member is D1, D1/L0 is 0.25 or more and 0.40 or less. is.

According to the twenty-second aspect, in the heating assembly of the twenty-first aspect, D1/L0 is 0.30 or more and 0.35 or less.

According to a twenty-third aspect, in the heating assembly according to any one of the first to twenty-second aspects, the flavor-generating article and the upstream end of the first cylindrical member are aligned in the axial direction. In a state in which the article is housed inside the first cylindrical member, the downstream end of the heating member is located downstream of the downstream end of the flavor-generating base material of the flavor-generating article, When the distance in the axial direction between the downstream end and the downstream end of the flavor generating substrate of the flavor generating article is D2, and the length of the flavor generating substrate of the flavor generating article in the axial direction is L1, D2/ L1 is 0.075 or more and 0.175 or less.

According to the twenty-fourth aspect, in the heating assembly of the twenty-third aspect, D2/L1 is 0.1 or more and 0.15 or less.

According to a twenty-fifth aspect, in the heating assembly according to any one of the first to twenty-third aspects, the flavor-generating article and the upstream end of the first tubular member are aligned in the axial direction. In a state in which the article is housed inside the first cylindrical member, the downstream end of the heating member and the downstream end of the first cylindrical member are downstream of the downstream end of the flavor generating base material of the flavor generating article. and the downstream end of the first tubular member is located downstream of the downstream end of the heating member, and the downstream end of the heating member and the downstream end of the flavor generating base of the flavor generating article are separated from each other. D2 is the axial distance between is 2.6 or more and 3.4 or less.

According to the twenty-sixth aspect, in the heating assembly of the twenty-fifth aspect, D3/D2 is not less than 2.8 and not more than 3.2.

According to a twenty-seventh aspect, there is provided a flavor inhaler comprising a heating assembly of any of the first through twenty-sixth aspects.

According to a twenty-eighth form, there is provided a flavor inhaler comprising an air flow path for pneumatically connecting an air inlet and an air outlet. The air flow path comprises a first hollow tube forming part of an opening for receiving a flavor source from the outside, a second hollow tube forming part of the heating assembly, and the flavor source. a third hollow tube provided with a locking portion for positioning the third hollow tube, the second hollow tube, in the direction from the air inlet to the air outlet; arranged in order of the first hollow tube, the first hollow tube and the second hollow tube, and the second hollow tube and the third hollow tube respectively overlap in the longitudinal direction areas, and any of the overlapping areas are sealed.

According to a twenty-ninth form, in the flavor inhaler of the twenty-eighth form, the second hollow tube has a cylindrical shape.

According to a thirtieth form, in the flavor inhaler of the twenty-eighth form or the twenty-ninth form, the second hollow tube accommodates the flavor source therein so as to come into contact with at least part of the flavor source. configured to

According to a 31st embodiment, in the flavor inhaler according to any one of the 28th to 30th embodiments, the first hollow tube can accommodate the downstream end of the second hollow tube in the overlap region. a housing portion having an inner diameter larger than the outer diameter of the downstream end of the second hollow tube.

According to a 32nd embodiment, in the flavor inhaler according to any one of the 28th to 31st embodiments, the third hollow tube can accommodate the upstream end of the second hollow tube in the overlap region. and a receiving portion having an inner diameter larger than the outer diameter of the upstream end of the second hollow tube.

According to a thirty-third embodiment, in the flavor inhaler according to any one of the twenty-eighth to thirty-second embodiments, the third hollow tube has an inner diameter equal to that of the second hollow tube in a region different from the overlapping region. a first flavor source lock having an inner diameter smaller than the first flavor source lock.

According to a thirty-fourth embodiment, the flavor inhaler of any one of the twenty-eighth to thirty-third embodiments has a fourth hollow tube disposed surrounding the second hollow tube, The upstream end of a hollow tube surrounds the downstream end of said third hollow tube and/or the downstream end of said fourth hollow tube surrounds the upstream end of said first hollow tube.

According to a thirty-fifth embodiment, in the flavor inhaler according to any one of the twenty-eighth to thirty-fourth embodiments, the contact portion between the inner surface of the first hollow tube and the outer surface of the second hollow tube in the overlap region is Engaged by adhesive.

According to a thirty-sixth embodiment, in the flavor inhaler according to any one of the twenty-eighth to thirty-fifth embodiments, the contact portion between the outer surface of the second hollow tube and the inner surface of the third hollow tube in the overlapping region is Engaged by adhesive.

According to a thirty-seventh embodiment, in the flavor inhaler of any one of the twenty-eighth to thirty-sixth embodiments, each of the first hollow tube, the second hollow tube, and the third hollow tube a housing containing at least a portion thereof, the housing having an inlet communicating with the interior of the third hollow tube, the third hollow tube connecting the third hollow tube to the second hollow tube; A different end than the end with the overlapping region is positioned adjacent the inlet of the housing.

According to a thirty-eighth embodiment, in the flavor inhaler according to any one of the twenty-eighth to thirty-seventh embodiments, the first hollow tube has a second flavor source locking portion for locking the flavor source. It has on its inner surface.

According to a thirty-ninth form, in the flavor inhaler according to any one of the twenty-eighth to thirty-eighth forms, the second hollow tube is made of a metal material, and the first hollow tube and the third hollow tube are made of a metal material. The tube is made of resin material.

According to a 40th embodiment, the flavor inhaler of any one of the 28th to 39th embodiments has a sleeve member with an opening, and the sleeve member forms a part of the opening.

According to a 41st embodiment, in the flavor inhaler of the 40th embodiment, an end portion of the first hollow tube different from the end portion having the overlapping region with the second hollow tube includes the sleeve Engage with the member.

According to a forty-second embodiment, in the flavor inhaler of the forty-first embodiment, a hollow rubber material is provided at an engaging end between the sleeve member and the first hollow tube.

According to a forty-third form, in the flavor inhaler of the forty-second form, the sleeve member has a container for containing the rubber material.

According to a forty-fourth embodiment, in the flavor inhaler of any one of the fortieth to forty-third embodiments, the inner diameter of the sleeve member is larger than the outer diameter of the first hollow tube, and the sleeve member surrounds at least a portion of the first hollow tube;

According to a forty-fifth embodiment, in the flavor inhaler of any one of the forty-fourth to the forty-fourth embodiments, access of the flavor source to the opening of the sleeve member or the inner wall of the first hollow tube is permitted or restricted. It has a moveable lid member for cleaning.

According to a forty-sixth form, in the flavor inhaler according to any one of the twenty-eighth to the forty-fifth forms, the second hollow tube partially fills a space for accommodating a heating member for heating the flavor source. define.

According to the forty-seventh embodiment, in the flavor inhaler of any one of the twenty-eighth to the forty-sixth embodiments, when the maximum inner diameter of the third hollow tube is Smax and the maximum outer diameter of the flavor source is Sc, Sc/Smax is 1.4 or more and 2.34 or less.

According to the forty-eighth embodiment, in the flavor inhaler of the forty-seventh embodiment, Sc/Smax is 1.56 or more and 2.01 or less.

DESCRIPTION OF SYMBOLS 10... Flavor sucker 11... Housing 12... Cover 12a... Opening 14... Lid part 15... Vent 16... Cap 17... Outer fin 17a... Storage part 21... Power supply 24... Rubber material 30... Circuit part 41... Heating assembly 42... Inner tube 43 Heating member 44 Airgel 45 Outer tube 46 First annular member 47 Second annular member 48 Top cap 50 Bottom cap 50c Small diameter portion 50d Locking portion 52 Heat shrinkable tube 54 Sealing Region 56 Heater tail 70 Air flow path 110 Smoking article 111 Filling

Claims (23)

A heating assembly comprising: a first cylindrical member having a first opening into which a flavor generating article can be inserted at one end and a second opening forming an air inlet at the other end; a heating member; and a heat insulating material. hand,
Further comprising a second cylindrical member arranged to surround the first cylindrical member,
A heating assembly, wherein an enclosed area is provided between said first tubular member and said second tubular member, said heating element and said thermal insulation being contained in said enclosed area. A heating assembly as claimed in claim 1, wherein
the heating member abuts against the first tubular member;
The heating assembly, wherein the first tubular member is formed of a metallic material. A heating assembly according to claim 1 or 2,
The heating member is provided on the outer peripheral side of the first cylindrical member,
A first resin material is provided between the heating member and the heat insulating material,
The heating assembly, wherein the first resin material stresses the heating member to press the heating member against the first tubular member. 4. A heating assembly as claimed in claim 3, wherein
The heating assembly, wherein the first resin material is thermally shrunk to apply a stress to the heating member to press the heating member against the first tubular member. A heating assembly according to claim 3 or 4,
The heating assembly, wherein an upstream end of the first resin material near the second opening protrudes outside the second tubular member. 6. A heating assembly as claimed in claim 5, wherein
a third tubular member into which the flavor-generating article can be inserted and having an internal space communicating with the first opening of the first tubular member;
The third cylindrical member is connected to the downstream end of the first cylindrical member on the first opening side,
The heating assembly, wherein a downstream end of the first resin material near the first opening surrounds an upstream end connected to the first opening of the third tubular member. 7. A heating assembly as claimed in claim 6,
The heating assembly, wherein the upstream end of the third tubular member surrounds the downstream end of the first tubular member. A heating assembly according to any one of claims 3 to 7,
The heating assembly, wherein the axial length of the first resin material is substantially the same as the axial length of the first tubular member. A heating assembly according to any one of claims 3 to 8,
The first resin material is longer than the heating member in the axial direction,
A heating assembly, wherein the heating member is positioned between an upstream end of the first resin material proximate the second opening and a downstream end proximate the first opening of the first resin material. A heating assembly according to any one of claims 3 to 9,
It is connected to the upstream end of the first tubular member on the second opening side, and the second tubular member of the first tubular member
Having a fourth cylindrical member forming an internal flow path for introducing air toward the opening,
The heating assembly, wherein an upstream end of the first resin material near the second opening surrounds the outer circumference of the fourth tubular member. 11. A heating assembly as claimed in claim 10, wherein
The heating assembly, wherein the downstream end of the fourth tubular member near the second opening surrounds the upstream end of the first tubular member. A heating assembly according to any one of claims 1 to 11,
an upstream end on the second opening side and a downstream end on the first opening side of the first cylindrical member protrude outside the second cylindrical member;
A heating assembly, wherein the heating member axially fits between an upstream end of the second tubular member proximate the second opening and a downstream end proximate the first opening of the second tubular member. A heating assembly according to any one of claims 1 to 12,
The heating assembly wherein the thermal insulation extends axially at least between an upstream end of the heating member proximate the second opening and a downstream end proximate the first opening of the heating member. A heating assembly according to any one of claims 1 to 13,
Between the end of the first cylindrical member on the first opening side and the end of the second cylindrical member near the first opening, and the end of the first cylindrical member on the second opening side a heating assembly having circumferentially extending annular members each between a portion and an end of the second tubular member proximate the second opening. 15. A heating assembly as claimed in claim 14, wherein
The heating assembly, wherein the annular member is formed of a material having a lower thermal conductivity than the first tubular member and the second tubular member. 16. A heating assembly as claimed in any one of claims 1 to 15,
The heating assembly, wherein the insulating material comprises airgel. 17. A heating assembly as claimed in any one of claims 1 to 16,
a heater tail electrically connecting the heating member to a controller;
The heating assembly wherein at least a portion of the heater tail extends along an outer surface of the first tubular member and protrudes outside the enclosed area. A heating assembly according to any one of claims 1 to 17,
the heating member is configured to heat the flavor generating article;
When the length in the axial direction of the flavor generating substrate of the flavor generating article is L0, and the length in the axial direction of the heating member is D0, D0/L0 is 0.7 or more and 0.9 or less. assembly. 19. A heating assembly as claimed in claim 18, comprising:
The heating assembly wherein D0/L0 is between 0.75 and 0.85. 20. A heating assembly according to any one of claims 1 to 19,
the heating member is configured to heat the flavor generating article;
Let L0 be the length in the axial direction of the flavor-generating substrate of the flavor-generating article, and D1 be the distance in the axial direction between the upstream end of the heating member and the upstream end of the first tubular member. /L0 is greater than or equal to 0.25 and less than or equal to 0.40. 21. A heating assembly as claimed in claim 20, wherein
The heating assembly, wherein D1/L0 is between 0.30 and 0.35. A heating assembly according to any one of claims 1 to 21,
In a state in which the flavor-generating article is housed inside the first cylindrical member such that the upstream end of the flavor-generating article and the upstream end of the first cylindrical member are aligned in the axial direction, The heating assembly, wherein the downstream end is located downstream from the downstream end of the flavor generating substrate of the flavor generating article. A flavor inhaler comprising a heating assembly according to any one of claims 1-22.

Images