JP6569972B1 - Non-combustion suction device power unit, atomization unit and non-combustion suction device - Google Patents

Abstract

A power supply unit of a non-combustion suction device according to an aspect of the present invention includes a housing to which an atomization unit can be connected, and a pressure sensor that is housed in the housing and detects a pressure change in the housing. A communication port that communicates the inside and the outside of the housing is opened on the first surface of the housing that the atomizing unit faces when the atomizing unit is connected. On the first surface, a surrounding convex portion that protrudes from the first surface and surrounds the communication port is formed at a position away from the communication port in the in-plane direction of the first surface. The surrounding convex portion forms a buffer space that communicates between the communication port and the flow path together with the first surface and the atomizing unit when the atomizing unit is connected to the housing.

Description

The present invention relates to a power source unit, an atomization unit, and a non-combustion suction device for a non-combustion suction device.
The present application claims priority based on Chinese Patent Application No. 201611255597.9 filed on October 26, 2018, the contents of which are incorporated herein by reference.

2. Description of the Related Art Conventionally, there is known a non-combustion aspirator (hereinafter simply referred to as an aspirator) that tastes a flavor by aspirating steam (for example, aerosol) atomized by heating. As this type of aspirator, for example, there is an apparatus equipped with an atomization unit that accommodates atomizable contents (for example, an aerosol source) and a power supply unit on which a storage battery is mounted.
In the aspirator, the heating unit provided in the atomization unit generates heat by the electric power supplied from the storage battery. Thereby, the contents in the atomization unit are atomized. The user can suck the atomized aerosol together with air through the mouthpiece.

  For example, Patent Document 1 below discloses a configuration in which an atomization unit is detachably attached to a power supply unit. In the aspirator described in Patent Document 1 below, the atomization unit and the power supply unit communicate with each other with the ports facing each other. According to this structure, the inside of a power supply unit becomes a negative pressure by attracting | sucking a suction device through a suction opening part. The negative pressure in the power supply unit is detected by a pressure sensor built in the power supply unit. Thereby, it is considered that the user can inhale the aerosol because the heating unit generates heat.

China Utility Model Notice 206482021 Specification

  However, in the prior art described above, the ports of the atomization unit and the main unit are directly butted together. Therefore, for example, when the aerosol is condensed, there is a possibility of entering the power supply unit through the port.

  An object of the present invention is to provide a power unit, an atomization unit, and a non-combustion suction device for a non-combustion suction device that can protect the power supply unit from condensed aerosol.

(1) In order to achieve the above object, the power source unit of the non-combustion inhaler according to one aspect of the present invention has a fog in which an aerosol source is accommodated and a channel through which the atomized aerosol flows is formed. A communication port for communicating the inside and the outside of the housing is formed on a first surface of the housing that is opposed to the atomizing unit when the atomizing unit is connected. On one surface, at a position away from the communication port in the in-plane direction of the first surface, an surrounding convex portion that protrudes from the first surface and surrounds the communicating port is formed, and the surrounding convex portion is , together with the atomizing the first surface and the atomizing unit when connecting unit to the housing, wherein the forming a buffer space that communicates between the communicating port and said flow path, said surrounding convex portion, the elastic strange Capable while being formed, closely to the atomizing unit when connecting the atomizing unit to the housing.

According to this aspect, since the buffer space is easily formed between the communication port and the flow path, there is no need to butt the ports and the convenience of the user can be improved. Thereby, for example, once atomized, the condensed aerosol can be prevented from flowing directly into the communication port through the flow path. Thereby, a power supply unit can be protected from the condensed aerosol.
In addition, when the atomizing unit is connected to the power supply unit, the go convex portion is in close contact with the atomizing unit in a state of being elastically deformed. Thereby, the sealing performance of the buffer space can be improved, and the sensitivity of the pressure sensor can be improved.

(2) In the power supply unit of the non-combustion suction device according to the aspect of (1), a pressure sensor for detecting a pressure change in the housing is housed in the housing, and the communication port is formed of the first communication port. You may arrange | position in the position which overlaps with the said pressure sensor seeing a surface from a normal line direction.
According to this aspect, the distance between the pressure sensor and the communication port can be reduced. Thereby, it is possible to easily generate a negative pressure around the pressure sensor through the communication port. As a result, the sensitivity of the pressure sensor can be improved.

( 3 ) The main body unit of the non-combustion type suction device according to one aspect of the present invention is provided at an end portion on the first surface side of the power supply unit according to the above aspect and the power supply unit, and the atomization unit And a container holding cylinder in which the atomizing unit is accommodated when connected to the power supply unit.
According to this aspect, the atomization unit is stably held in the container holding cylinder. Thereby, the connection state of an atomization unit and a power supply unit can be stabilized.

( 4 ) In the main body unit of the non-combustion type suction device according to the above aspect ( 3 ), the aerosol generated in the atomization unit is placed on the side opposite to the power supply unit with respect to the container holding cylinder. A suction port that sucks through the path may be provided, and the atomization unit may be sandwiched between the suction port and the surrounding convex portion.
According to this aspect, the atomizing unit can be pressed against the surrounding convex portion by the suction port, and the sealing performance of the buffer space can be improved. Moreover, since the atomization unit is arrange | positioned between a power supply unit and an inlet part, the flow path from an atomization unit to an inlet part becomes short.

(5) In the main unit of non-combustion-type suction device according to the above aspect (4), at least a portion of the front Symbol suction unit, which can accommodate accommodating space flavor source container may be provided.
According to this aspect, when the aerosol is sucked through the mouthpiece, the aerosol can be added to the aerosol by passing through the flavor source container.

( 6 ) The non-combustion type suction device according to one aspect of the present invention includes the main body unit according to the above aspect, and the atomization unit that is detachably attached to the main body unit.
According to this aspect, since the main body unit according to the above aspect is provided, it is possible to provide an aspirator with excellent reliability.

( 7 ) In the non-combustion type suction device according to the above aspect ( 6 ), the second surface of the atomizing unit that faces the first surface may be formed as a flat surface.
According to this aspect, since the buffer space is formed by the contact or proximity of the surrounding convex portion and the flat surface, the atomization unit can be simplified.

( 8 ) In the non-combustion type suction device according to the aspect of ( 7 ), the opening in the second surface of the flow path is disposed at a position shifted in the in-plane direction with respect to the communication port. May be.
According to this aspect, since the distance between the opening on the second surface and the communication port in the flow path can be ensured, even if the condensed aerosol enters the buffer space, the inside of the housing is formed through the communication port. Can be prevented from flowing into
(9) A non-combustion suction device according to an aspect of the present invention includes a power supply unit having a housing in which a pressure sensor is accommodated and a container body in which an aerosol source is accommodated, and a mist that can be connected to the power supply unit. A communication port for communicating the inside and outside of the housing on the first surface of the housing, and atomized aerosol circulates in the container body and is connected to the power supply unit. Sometimes a flow path is formed that opens on a second surface facing the first surface, and the first surface of the housing and the second surface of the container body are at least one of the atomization unit and the power supply unit. The elastic convex portions are in close contact with each other via elastically deformable surrounding convex portions formed on the front surface in the in-plane direction of the first surface when the atomizing unit is connected to the power supply unit. At a location remote from the communication port surrounds the periphery of the communication port, together with the first surface and the second surface to form a buffer space communicating between the flow path and the communication port.

(10) An atomization unit of a non-combustion suction device according to an aspect of the present invention is configured to be connectable to a power supply unit having a housing in which a pressure sensor is stored, and a container body in which an aerosol source is stored; A flow passage formed in the container body and through which the atomized aerosol circulates. A communication port that communicates the inside and the outside of the housing is opened on the first surface of the housing, and the power source of the container body On the second surface facing the first surface at the time of connection to the unit, a surrounding convex portion protruding from the second surface is formed, and the surrounding convex portion is formed when the container body is connected to the power supply unit. The communication port surrounds the communication port at a position away from the communication port in the in-plane direction of the first surface, and communicates the communication port and the flow path together with the first surface and the second surface. Shape buffer space And said surrounding convex portion is formed to be elastically deformable, in close contact with the power supply unit when connecting the power supply unit to the container body.
According to this aspect, since the buffer space is formed between the communication port and the flow path, it is possible to suppress, for example, the atomized aerosol source from flowing directly into the communication port through the flow path after being atomized once. Thereby, a power supply unit can be protected from the condensed aerosol.

  According to one embodiment of the present invention, the power supply unit can be protected from condensed aerosol.

It is a perspective view of the suction device which concerns on embodiment. It is a disassembled perspective view of the suction device which concerns on embodiment. It is sectional drawing which follows the III-III line of FIG. It is a disassembled perspective view of the power supply unit which concerns on embodiment. It is sectional drawing which follows the VV line of FIG. It is a perspective view of the power supply unit which concerns on embodiment. It is the top view which looked at the power supply unit which concerns on embodiment from the holding unit side of the axial direction. It is a disassembled perspective view of the holding | maintenance unit which concerns on embodiment. It is a perspective view which shows the connection structure of the 1st connection member which concerns on embodiment, and a 2nd connection member. It is the top view which looked at the holding unit and cartridge which concern on embodiment from the power supply unit side of the axial direction. It is sectional drawing which follows the XI-XI line of FIG. It is a disassembled perspective view of the mouthpiece corresponding to the XII-XII line | wire of FIG. It is sectional drawing which follows the axial direction of the cartridge which concerns on embodiment. It is a disassembled perspective view of the cartridge which concerns on embodiment. It is the perspective view which looked at the tank concerning an embodiment from the opening side. It is the perspective view which looked at the heater holder which concerns on embodiment from the power supply unit side. It is the perspective view which looked at the atomization container which concerns on embodiment from the mesh body side. It is a front view of the suction device which concerns on embodiment. It is sectional drawing which follows an axial direction when a mouthpiece is removed from the suction device which concerns on embodiment. It is explanatory drawing which shows the state which the cartridge which concerns on embodiment got on the vertical engagement convex part. It is explanatory drawing which shows a mode that a mouthpiece is screwed in the riding state of the cartridge which concerns on embodiment. It is explanatory drawing which shows a mode that the mouthpiece and cartridge which concern on embodiment rotate together. It is explanatory drawing which shows a mode that the mouthpiece which concerns on embodiment was fastened to the last. It is a fragmentary sectional view of the suction device which concerns on the modification of embodiment.

Next, embodiments of the present invention will be described with reference to the drawings.
[Aspirator]
FIG. 1 is a perspective view of an aspirator.
The aspirator 1 shown in FIG. 1 is a so-called non-combustion type aspirator, and tastes the flavor of tobacco leaves by sucking aerosol atomized by heating through the tobacco leaves.

  The aspirator 1 includes a main body unit 10, a cartridge (atomization unit) 11 and a tobacco capsule (flavor source container) 12 that are detachably attached to the main body unit 10.

<Main unit>
FIG. 2 is an exploded perspective view of the aspirator 1.
As shown in FIG. 2, the main unit 10 includes a power supply unit 21, a holding unit 22, and a mouthpiece (suction part) 23. The power supply unit 21, the holding unit 22, and the mouthpiece 23 are each formed in a cylindrical shape having the axis O as the central axis, and are arranged side by side on the axis O. In the following description, a direction along the axis O is referred to as an axial direction (normal direction). In this case, in the axial direction, the side from the mouthpiece 23 toward the power supply unit 21 can also be referred to as the anti-suction side or the first side, and the side from the power supply unit 21 toward the mouthpiece 23 can also be referred to as the suction side or the second side. it can. In addition, a direction intersecting the axis O in a plan view seen from the axial direction may be referred to as a radial direction, and a direction around the axis O may be referred to as a circumferential direction. In this specification, “direction” means two directions, and “side” is used to indicate one direction among “directions”.

<Power supply unit>
3 is a cross-sectional view taken along line III-III in FIG.
As shown in FIG. 3, the power supply unit 21 includes a housing 31 and a holder assembly 32 accommodated in the housing 31.

(Holder assembly)
FIG. 4 is an exploded perspective view of the power supply unit 21.
As shown in FIGS. 3 and 4, the holder assembly 32 is configured by mounting a storage battery 33, board modules (first board module 34 and second board module 35), etc. on a battery holder 36.
The storage battery holder 36 is integrally formed of, for example, a resin material. The storage battery holder 36 includes a base portion 40. The base portion 40 is formed in a semi-cylindrical shape with the axis O as the central axis. The base portion 40 may have a shape other than a semi-cylindrical shape as long as an assembly opening 40a (see FIG. 4) for receiving the storage battery 33 or the like is opened outward in the radial direction.

  In the base portion 40, a press-fit cylinder portion 41 is connected to an end portion on the opposite side to the holding unit 22 in the axial direction. The press-fit cylinder portion 41 is formed in a cylindrical shape having the axis O as the central axis. In the press-fit cylinder portion 41, a connector passage hole 42 that penetrates the press-fit cylinder portion 41 in the radial direction is formed in a part of the circumferential direction. Of the press-fit cylinder portion 41, the opening located on the opposite side of the holding unit 22 in the axial direction is closed by a closing portion 43. The closing part 43 is formed in a circular shape having a larger diameter than the press-fitting cylinder part 41.

  A button opening 44 (see FIG. 3) is formed in a portion of the base portion 40 that is positioned on the holding unit 22 side in the axial direction. The button opening 44 penetrates a part of the base portion 40 in the circumferential direction in the radial direction. The connector passage hole 42 and the button opening 44 described above are arranged at positions that differ by 180 ° in the circumferential direction, for example. In the present embodiment, the radial direction passing through the centers of the connector passage hole 42 and the button opening 44 in the circumferential direction is the front and back surface direction. In this case, the connector passage hole 42 side with respect to the axis O is the back side, and the button opening 44 side with respect to the axis O is the front side. The positions of the connector passage hole 42 and the button opening 44 can be changed as appropriate.

In the base portion 40, a button guide cylinder 45 extending to the back side is formed at the opening edge of the button opening 44. The button guide tube 45 surrounds the button opening 44.
A partition wall 46 that partitions the base portion 40 in the axial direction is formed in a portion of the base portion 40 that is located on the opposite side of the holding unit 22 in the axial direction from the button opening 44.

FIG. 5 is a cross-sectional view taken along line VV in FIG.
As shown in FIGS. 3 to 5, a stepped portion 47 is connected to an end portion of the base portion 40 that is positioned on the holding unit 22 side in the axial direction. The step portion 47 is formed in a semi-cylindrical shape arranged coaxially with the base portion 40, and gradually decreases as the radial distance from the axis O approaches the holding unit 22 in the axial direction. A connecting pedestal 48 is connected to an edge of the stepped portion 47 located on the holding unit 22 side in the axial direction. The connection base 48 is formed in a circular shape with the axis O as the central axis. A pair of electrode holding portions 50 and a communication port 51 are formed on the connection base 48.

As shown in FIGS. 4 and 5, the pair of electrode holding portions 50 is formed in a cylindrical shape that protrudes toward the holding unit 22 in the axial direction. Each electrode holding part 50 is located on both sides in the radial direction with respect to the axis O. In this embodiment, each electrode holding part 50 is arrange | positioned along with the direction (henceforth a right-and-left direction) orthogonal to the front-and-back surface direction mentioned above among radial directions. Each electrode holding portion 50 extends in the axial direction and is continuous with each other in the radial direction.
As shown in FIGS. 3 and 4, the communication port 51 protrudes toward the holding unit 22 in the axial direction from a portion located on the back side in the radial direction with respect to the axis O in the connection base 48.

  As shown in FIG. 5, each electrode holding portion 50 holds a pin electrode 49 separately. The pin electrode 49 has a configuration in which a pin-shaped electrode body is elastically supported in a cylindrical case. The pin electrode 49 is configured such that the electrode body penetrates the electrode holding part 50 in the axial direction in a state where the cylindrical case is fitted in the electrode holding part 50. Of the both ends in the axial direction of the pin electrode 49 (electrode body), the end located on the opposite side of the holding unit 22 in the axial direction is connected to the first substrate 60 described later through the electrode wiring in the storage battery holder 36. Has been.

  The storage battery 33 is formed in a cylindrical shape with the axis O as the axial direction. The storage battery 33 is accommodated in a portion of the base portion 40 that is located on the opposite side of the holding unit 22 in the axial direction with respect to the partition wall 46. In addition, the power supply part mounted in the suction device 1 is not limited to a secondary battery such as the storage battery 33 as a chargeable / dischargeable power supply, but may be a super capacitor or the like. The power supply unit may be a primary battery.

As shown in FIGS. 3 and 4, the first substrate module 34 is disposed in a portion of the base portion 40 that is positioned on the holding unit 22 side in the axial direction with respect to the partition wall 46. Specifically, the first substrate module 34 includes a first substrate 60, a switch element 52 (see FIG. 3), and a pressure sensor 53.
The 1st board | substrate 60 is arrange | positioned by making the front-back surface direction into the thickness direction. Specifically, the first substrate 60 is fixed to the base portion 40 with screws or the like while being placed on the opening end face of the assembly opening 40a. The first substrate 60 is connected to the storage battery 33 via a first connection wiring (not shown). In the example shown in FIG. 3, the first substrate 60 is located on the axis O.

  The switch element 52 is disposed on the front surface (first main surface) of the first substrate 60 at a position overlapping the button opening 44 when viewed from the front and back surfaces. In the present embodiment, the switch element 52 is surface-mounted on the first substrate 60. However, the switch element 52 may be mounted on the first substrate 60 in a state where the connection terminal drawn from the switch element 52 is inserted into the through hole of the first substrate 60.

  The pressure sensor 53 is disposed on the holding unit 22 side in the axial direction with respect to the switch element 52 on the back surface (second main surface) of the first substrate 60. That is, the pressure sensor 53 is arranged at a position where it does not overlap with the switch element 52 in a plan view as viewed from the front and back surfaces. In the present embodiment, the pressure sensor 53 is disposed at a position shifted toward the holding unit 22 in the axial direction with respect to the switch element 52, but is not limited to this configuration. That is, as long as the switch element 52 and the pressure sensor 53 are arranged at positions shifted in the in-plane direction of the first substrate 60, the switch element 52 and the pressure sensor 53 may be arranged at positions shifted in the opposite direction to the holding unit 22 in the axial direction. Of course, the radial direction may be shifted in the left-right direction.

  As the pressure sensor 53, for example, a capacitance type can be adopted. That is, the pressure sensor 53 detects the behavior of the diaphragm that deforms according to the pressure fluctuation as a change in capacitance. The pressure sensor 53 of the present embodiment is mounted on the first substrate 60 in a state where the connection terminal drawn out from the pressure sensor 53 is inserted into the through hole of the first substrate 60. However, the pressure sensor 53 may be surface-mounted on the first substrate 60.

  A sensor holder 54 is attached to the pressure sensor 53. The sensor holder 54 is made of a resin material that is softer than the storage battery holder 36 and has elasticity, such as silicone resin. The sensor holder 54 includes an attachment portion 55 attached to the storage battery holder 36 and a covering portion 56 that covers the pressure sensor 53.

  The attachment portion 55 is formed in a semicircular shape. The attachment portion 55 is assembled to the storage battery holder 36 in a state in which the attachment portion 55 is abutted against the connection pedestal 48 in the axial direction from the side opposite to the holding unit 22. Note that the stepped portion 47 described above is formed with a clamping piece 57 (see FIG. 4) that clamps the mounting portion 55 in the axial direction with the connection base 48. The sandwiching pieces 57 protrude in the circumferential direction from both end faces of an arc located outside the radial direction (left-right direction) in the stepped portion 47.

  The covering portion 56 is continuous from the attachment portion 55 to the side opposite to the holding unit 22 in the axial direction. The covering portion 56 is formed in a cap shape that opens to the front surface side. A spacer 56 b that bulges to the surface side is formed on the bottom wall portion 56 a of the covering portion 56. The pressure sensor 53 is fitted in the covering portion 56 in a state of being abutted against the spacer 56b. Thus, a radial gap is provided between the inner surface of the bottom wall portion 56 a and the pressure sensor 53. The bottom wall portion 56a has an air replacement hole 58 that penetrates the bottom wall portion 56a in the radial direction.

  In the mounting portion 55 described above, a communication passage 59 that allows the inside of the communication port 51 and the inside of the covering portion 56 to communicate with each other is formed. The communication path 59 extends in the mounting portion 55 in the axial direction. The end of the communication path 59 opposite to the holding unit 22 in the axial direction is open on the inner peripheral surface of the covering portion 56. On the other hand, the end of the communication path 59 on the holding unit 22 side in the axial direction is open on the surface of the mounting portion 55 facing the holding unit 22 in the axial direction. In the present embodiment, the minimum inner diameter of the communication passage 59 is larger than the maximum inner diameter of the air replacement hole 58. In the communication path 59, the inner diameter of the end portion on the holding unit 22 side at least in the axial direction is larger than the inner diameter of the communication port 51.

  In the present embodiment, the communication port 51 and the communication passage 59 are disposed at a position where at least a part thereof overlaps the pressure sensor 53 when viewed from the axial direction. However, the communication port 51 and the communication path 59 may be disposed at positions shifted from the pressure sensor 53 when viewed from the axial direction.

As shown in FIGS. 3 to 5, the second substrate module 35 is disposed on the opposite side to the first substrate module 34 in the axial direction with the storage battery 33 interposed therebetween. That is, the board modules 34 and 35 of this embodiment are separately arranged on both sides in the axial direction with the storage battery 33 interposed therebetween. The second board module 35 includes a second board 61 and a female connector 62.
The second substrate 61 is accommodated in the above-described press-fit cylinder portion 41 with the radial direction (front and back direction) as the thickness direction. As shown in FIG. 5, the second substrate 61 is fixed to the boss portion 41 a with screws or the like while being placed on the boss portion 41 a that protrudes radially inward from the press-fit cylinder portion 41. The second substrate 61 is connected to the first substrate 60 via the second connection wiring 61a. That is, the second connection wiring 61 a is routed in the axial direction through the periphery of the storage battery 33 outside the storage battery holder 36.

  As shown in FIGS. 3 and 4, the female connector 62 is used for charging the storage battery 33, and a male connector (not shown) drawn from an external power source is inserted and removed. In the present embodiment, for example, a USB connector (Universal Serial Bus) is employed as the female connector 62. However, the female connector 62 is not limited to a USB connector. Further, the female connector 62 is not necessarily used for charging, and may be used for communication, for example.

  The female connector 62 is mounted on the second substrate 61 with the opening facing the back side. The distal end portion (end portion near the opening) of the female connector 62 is inserted into the connector passage hole 42 described above. However, the female connector 62 may be retracted radially inward from the connector passage hole 42.

(housing)
As shown in FIGS. 3 and 4, the housing 31 includes an exterior cylinder portion 71, an interposition member 72, and a connection mechanism 73.
The exterior cylinder part 71 is formed in a cylindrical shape having the axis O as the central axis. The holder assembly 32 is inserted into the outer cylinder 71 through an opening located on the opposite side of the holding unit 22 in the axial direction. Specifically, the holder assembly 32 is assembled into the exterior cylinder portion 71 in a state where the press-fit cylinder portion 41 of the storage battery holder 36 is press-fitted into an end portion of the exterior cylinder portion 71 that is located on the opposite side of the holding unit 22. ing. Thereby, the holder assembly 32 is accommodated in the exterior cylinder part 71 in the state where the end located on the holding unit 22 side in the axial direction protrudes from the exterior cylinder part 71. In addition, the opening located on the opposite side to the holding unit 22 in the axial direction in the outer cylinder portion 71 is closed by the closing portion 43 of the storage battery holder 36.

  A connector exposure hole 75 is formed at a portion overlapping the connector passing hole 42 and the female connector 62 as viewed from the radial direction at the end portion of the outer tube portion 71 located on the opposite side of the holding unit 22 in the axial direction. ing. The connector exposure hole 75 penetrates the exterior cylinder portion 71 in the radial direction. In the present embodiment, the configuration in which the female connector 62 opens in the radial direction has been described, but the configuration in which the female connector 62 opens in the axial direction may be used.

  A button exposure hole 76 is formed in a portion overlapping the button opening 44 described above when viewed from the radial direction at the end of the exterior cylinder portion 71 on the holding unit 22 side in the axial direction. The button exposure hole 76 penetrates the exterior cylinder part 71 in the radial direction.

  A button 78 is accommodated in the button exposure hole 76 and the button opening 44. The button 78 is configured to be movable in the radial direction while being supported by the button guide tube 45. The button 78 presses the switch element 52 as it moves inward in the radial direction. The surface of the button 78 is exposed on the outer peripheral surface of the exterior cylinder portion 71 through the button exposure hole 76. The button 78 is not limited to the one that moves in the radial direction, and may be one that slides in the axial direction, for example. Further, the suction device 1 may be operated by a touch sensor or the like instead of the button 78.

  The interposed member 72 is formed in a cylindrical shape having the axis O as the central axis. The interposition member 72 is fitted between the holder assembly 32 and the exterior cylinder portion 71 from the holding unit 22 side in the axial direction. As a result, the space between the holder assembly 32 and the exterior cylinder portion 71 is sealed in the opening located on the holding unit 22 side in the axial direction of the exterior cylinder portion 71.

  As shown in FIG. 3, in the housing 31, the space surrounded by the sensor holder 54 forms a pressure fluctuation chamber S <b> 1 in which the pressure fluctuates through the communication port 51 described above according to the use (suction) of the suction device 1. Yes. On the other hand, in the housing 31, a space other than the pressure fluctuation chamber S1 constitutes a normal pressure chamber S2 in which atmospheric pressure acts. In the present embodiment, of the storage battery 33 and the board modules 34 and 35, those other than the pressure sensor 53 are accommodated in the atmospheric pressure chamber S2. However, as long as at least the pressure sensor 53 is accommodated in the pressure fluctuation chamber S1, components other than the pressure sensor 53 may be accommodated in the pressure fluctuation chamber S1. Note that a liquid detection seal or the like may be provided in the housing 31 in order to grasp the entry of the liquid into the housing 31.

<Connection mechanism>
As shown in FIGS. 4 and 5, the connection mechanism 73 includes a connection cap 80, a first connecting member 81, and an annular piece 82.
The connection cap 80 is made of a resin material that is softer than the storage battery holder 36 and has elasticity, such as silicone resin. The connection cap 80 is attached to the connection base 48 from the holding unit 22 side in the axial direction. The connection cap 80 includes a base portion 91, a flange portion 92, and a surrounding convex portion 93.

As shown in FIG. 5, the base portion 91 is formed in a cylindrical shape having the axis O as the central axis. In the base portion 91, an accommodation recess 95 that is recessed toward the holding unit 22 in the axial direction is formed at a position that overlaps each electrode holding portion 50 in plan view. Each accommodating recess 95 extends in the axial direction and is continuous in the radial direction. In the base portion 91, an electrode insertion hole 97 is formed at a position that overlaps each receiving recess 95 in plan view. The electrode insertion hole 97 passes through the base portion 91 in the axial direction and communicates with the housing recess 95.
As shown in FIG. 3, a port insertion hole 99 is formed in the base portion 91 at a position overlapping the communication port 51 in plan view. The port insertion hole 99 passes through the base portion 91 in the axial direction.

  As shown in FIGS. 3 and 5, in the connection cap 80 described above, the electrode holding portion 50 is accommodated in each accommodation recess 95, and the communication port 51 is inserted in the port insertion hole 99. As a result, the connection cap 80 is assembled to the storage battery holder 36 in a state of being abutted against an end surface facing the holding unit 22 in the axial direction of the connection base 48. In this state, the pin electrode 49 protrudes from the base portion 91 toward the holding unit 22 in the axial direction through the electrode insertion hole 97. The communication port 51 protrudes from the base portion 91 toward the holding unit 22 in the axial direction through the port insertion hole 99. That is, the surface of the connection cap 80 (base portion 91) facing the holding unit 22 constitutes a base surface (first surface) 91a from which the pin electrode 49 protrudes and the communication port (communication port) 51 opens. doing.

  The flange portion 92 projects outward in the radial direction at the end of the base portion 91 opposite to the holding unit 22 in the axial direction.

  The surrounding convex portion 93 protrudes in the axial direction from the end surface of the base portion 91 facing the holding unit 22 in the axial direction. Specifically, the surrounding convex portion 93 is formed in an annular shape extending along the outer peripheral edge of the base portion 91. That is, the surrounding convex portion 93 collectively surrounds the pin electrode 49 and the communication port 51 at a position away from the pin electrode 49 and the communication port 51 in the radial direction. Note that the surrounding convex portion 93 may be located radially inside the outer peripheral edge of the base portion 91 as long as it surrounds the periphery of the pin electrode 49 and the communication port 51. Further, the go convex portion 93 is not limited to an annular shape, and may be a polygonal shape or the like. In the present embodiment, the “go” is not limited to the one that extends continuously, but includes one that extends intermittently. That is, the surrounding convex portion 93 in the present embodiment can be appropriately changed as long as it surrounds the pin electrode 49 and the communication port 51 as a whole.

  The surrounding convex portion 93 is formed in a triangular shape that is sharpened toward the holding unit 22 in the axial direction in a longitudinal sectional view along the axial direction. The protruding height of the surrounding convex portion 93 from the base portion 91 is higher than that of the communication port 51 and lower than that of the pin electrode 49. However, the protruding height of the surrounding convex portion 93 may be higher than that of the pin electrode 49. In addition, the vertical sectional view shape of the surrounding convex portion 93 is not limited to a triangular shape.

The first connecting member 81 includes a base cylinder portion 100, a vertical engagement convex portion (first vertical engagement convex portion 101a to third vertical engagement convex portion 101c), and a lateral engagement convex portion 102. Yes.
The base cylinder portion 100 is formed in a multistage cylinder shape that gradually decreases in diameter toward the holding unit 22 in the axial direction with the axis O as the center. An end of the base cylinder portion 100 that is located on the opposite side of the holding unit 22 in the axial direction is fitted inside the interposed member 72. In this state, the end portion on the holding unit 22 side in the axial direction of the base cylinder portion 100 surrounds the connection cap 80 in a state where the flange portion 92 is sandwiched between the connection base 48 and the axial direction. An outer flange portion 105 that projects outward in the radial direction is formed at the end portion of the base cylinder portion 100 on the holding unit 22 side in the axial direction.

FIG. 6 is a perspective view of the power supply unit 21.
As shown in FIGS. 5 and 6, the vertical engagement convex portions 101 a to 101 c protrude from the base tube portion 100 toward the holding unit 22 in the axial direction. A plurality of the vertical engagement convex portions 101a to 101c are formed at intervals in the circumferential direction. In this embodiment, each vertical engagement convex part 101a-101c is equally arrange | positioned at intervals of 120 degrees in the circumferential direction. In addition, the longitudinal engagement convex parts 101a-101c may be single or plural. Moreover, the pitch of the vertical engagement convex parts 101a-101c can be changed suitably. In this case, the plurality of vertical engagement convex portions 101a to 101c may be arranged unevenly.

FIG. 7 is a plan view of the power supply unit 21 as viewed from the holding unit 22 side in the axial direction.
As shown in FIG. 7, in each of the vertical engagement convex portions 101 a to 101 c described above, the pin electrodes 49 described above are not arranged on virtual straight lines La to Lc that connect the center in the circumferential direction and the axis O. Vertical engagement convex portions 101a to 101c are arranged. Specifically, the pin electrode 49 is disposed at a position that is line symmetric with respect to a virtual straight line La that connects the first vertical engagement convex portion 101a and the axis O. That is, the virtual straight line T1 connecting the pin electrodes 49 and the virtual straight line La are orthogonal to each other, and the distances from the virtual straight line La to the pin electrodes 49 are equal to each other.

  As shown in FIGS. 5 and 6, the end edge of the vertical engagement protrusions 101 a to 101 c located on the holding unit 22 side in the axial direction is located on the holding unit 22 side in the axial direction from the pin electrode 49. . The vertical engagement convex portions 101a to 101c are formed in a rectangular shape in a side view as viewed from the radial direction. At the end on the holding unit 22 side in the axial direction of the vertical engagement convex portions 101a to 101c, the surface facing the inner side in the radial direction is inclined such that the radial thickness gradually decreases toward the holding unit 22 side in the axial direction. It is considered as a surface. The inclined surface functions as a guide for smoothly guiding the longitudinal engagement convex portions 101a to 101c to an engagement concave portion 210 (described later) of the cartridge 11.

  The lateral engagement convex portion 102 protrudes outward in the radial direction from the outer flange portion 105. The lateral engagement convex portion 102 is formed in a rectangular shape in plan view. A plurality of lateral engagement convex portions 102 are formed at intervals in the circumferential direction. In the present embodiment, the lateral engagement convex portions 102 are evenly arranged at intervals of 90 ° in the circumferential direction. In the present embodiment, one lateral engagement convex portion 102 is disposed at the same position in the circumferential direction as the first vertical engagement convex portion 101a. In addition, the lateral engagement convex part 102 may be single or plural. Moreover, the pitch of the lateral engagement convex part 102 can be changed suitably. In this case, the plurality of lateral engagement convex portions 102 may be arranged unevenly.

  The annular piece 82 is formed in a thin annular shape. The above-described base tube portion 100 is inserted into the annular piece 82 from the holding unit 22 side in the axial direction, so that it is sandwiched between the interposed member 72 and the outer flange portion 105 in the axial direction. As shown in FIG. 5, a bending portion 106 is formed in a part of the annular piece 82 in the circumferential direction. The bending portion 106 is formed in an arch shape that bulges outward in the radial direction. The bending portion 106 is configured to be elastically deformable in the radial direction. The bending portion 106 is located on the inner side in the radial direction from the outer end surface in the radial direction of the lateral engagement convex portion 102.

  A plurality of the bent portions 106 described above are formed at intervals in the circumferential direction. For example, the bending part 106 is arrange | positioned in the position equivalent to a pair of horizontal engagement convex part 102 which opposes in radial direction (left-right direction) among each horizontal engagement convex part 102 in the circumferential direction. However, the number of flexures 106 can be changed as appropriate. For example, the bending portion 106 may be formed corresponding to each lateral engagement convex portion 102 or may be formed corresponding to only one lateral engagement convex portion 102.

<Holding unit>
FIG. 8 is an exploded perspective view of the holding unit 22.
As shown in FIG. 8, the holding unit 22 is detachably attached to the main unit 10. Specifically, the holding unit 22 includes a container holding cylinder 120, a transmission cylinder 121, a second connecting member 122, and a sleeve 123.
The container holding cylinder 120 is formed in a cylindrical shape having the axis O as the central axis. An observation hole 130 is formed in the central portion of the container holding cylinder 120 in the axial direction. The observation hole 130 penetrates the container holding cylinder 120 in the radial direction. The observation hole 130 is formed in an oval shape whose longitudinal direction is the axial direction. The observation holes 130 are formed as a pair in the radially opposite portion of the container holding cylinder 120. Note that the number, position, shape, and the like of the observation holes 130 can be appropriately changed.

  A vent 131 is formed in a portion of the container holding cylinder 120 located closer to the power supply unit 21 in the axial direction than the observation hole 130. The vent 131 penetrates the container holding cylinder 120 in the radial direction. The vent 131 communicates the inside and outside of the holding unit 22. A pair of vent holes 131 are formed at portions of the container holding cylinder 120 that face each other in the radial direction (front and back direction). Note that the number, position, shape, and the like of the vents 131 can be changed as appropriate.

  The transmission cylinder 121 is made of a light transmissive material. The transmission cylinder 121 is inserted into the container holding cylinder 120. Specifically, the transmission cylinder 121 is closer to the mouthpiece 23 in the axial direction than the vent hole 131 in the container holding cylinder 120, and covers the observation hole 130 from the inside in the radial direction. That is, the user can visually recognize the inside of the holding unit 22 through the observation hole 130 and the transmission tube 121. Note that the holding unit 22 may be configured without the observation hole 130 or the transmission cylinder 121.

  The second connecting member 122 is locked to the first connecting member 81 described above when the holding unit 22 is attached to the main body unit 10. Specifically, the second connecting member 122 includes a fitting cylinder 140, a guide cylinder 141, and a locking piece 142.

  The fitting cylinder 140 is formed in a cylindrical shape with the axis O as the central axis. The fitting cylinder 140 is fitted into a portion of the container holding cylinder 120 positioned closer to the power supply unit 21 in the axial direction than the transmission cylinder 121 by press-fitting or the like.

  The guide tube 141 is disposed coaxially with the fitting tube 140. The guide tube 141 extends from the fitting tube 140 toward the mouthpiece 23 in the axial direction. The guide tube 141 is formed in a tapered tube shape whose inner diameter gradually increases toward the mouthpiece 23 side in the axial direction. The outer diameter of the guide cylinder 141 is smaller than the outer diameter of the fitting cylinder 140. An escape portion 145 is formed in the guide cylinder 141 at a position overlapping the above-described vent 131 in a side view as viewed from the radial direction. The escape portion 145 is formed in a U-shape that opens to the mouthpiece 23 side in the axial direction, for example. The vent 131 opens into the holding unit 22 through the escape portion 145. In addition, the shape of the escape part 145 should just be the structure which exposes at least one part in the ventilation hole 131 in the holding | maintenance unit 22. FIG. Further, when the guide tube 141 and the vent 131 are arranged at different positions in the axial direction, the guide tube 141 may be configured without the escape portion 145.

FIG. 9 is a perspective view showing a connection structure between the first connecting member 81 and the second connecting member 122.
As shown in FIGS. 8 and 9, the locking piece 142 protrudes from the fitting tube 140 toward the power supply unit 21 in the axial direction. The locking piece 142 is formed in an L shape in a side view as viewed from the radial direction. Specifically, the locking piece 142 has a longitudinally extending portion 150 and a laterally extending portion 151.
The vertically extending portion 150 protrudes from the fitting tube 140 toward the power supply unit 21 in the axial direction.

  As shown in FIG. 9, the laterally extending portion 151 is cantilevered from the end portion on the power supply unit 21 side in the axial direction of the longitudinally extending portion 150 toward one side in the circumferential direction.

FIG. 10 is a plan view of the holding unit 22 and the cartridge 11 as viewed from the power supply unit 21 side in the axial direction.
As shown in FIGS. 9 and 10, in the laterally extending portion 151, an engagement recess 155 that is recessed outward in the radial direction is formed at one end portion in the circumferential direction. The engaging recess 155 is formed in a semicircular shape toward the outer side in the radial direction.

  A plurality of the locking pieces 142 described above are formed at intervals in the circumferential direction. In the present embodiment, the locking pieces 142 are evenly arranged at intervals of 90 ° in the circumferential direction. Between the engagement pieces 142 adjacent in the circumferential direction, an engagement groove 158 into which the above-described lateral engagement convex portion 102 is inserted is defined. The engagement groove 158 is formed in an L shape in a side view.

  As shown in FIGS. 2 and 9, the power supply unit 21 and the holding unit 22 can be attached and detached by connecting the locking piece 142 and the lateral engagement convex portion 102. That is, in order to connect the power supply unit 21 and the holding unit 22, the lateral engagement convex portion 102 is inserted into the engagement groove 158 in the axial direction, and then the power supply unit 21 and the holding unit 22 are relative to each other around the axis O. Rotate. Then, the laterally engaging convex portion 102 is engaged between the laterally extending portion 151 and the fitting cylinder 140 in the axial direction. Further, the bending portion 106 of the annular piece 82 is fitted into the engagement recess 155 in the process in which the power supply unit 21 and the holding unit 22 are relatively rotated around the axis O. Thereby, the bending part 106 engages with the engagement recessed part 155 in the circumferential direction. As a result, the power supply unit 21 and the holding unit 22 are assembled with each other in a state where the positioning in the axial direction and the circumferential direction is performed.

As shown in FIG. 9, in the engagement groove 158 of the present embodiment, the axial width gradually increases from the other side in the circumferential direction between the fitting tube 140 and the laterally extending portion 151. It is formed in a tapered shape that becomes narrower. Specifically, the end surface of the laterally extending portion 151 facing the mouthpiece 23 in the axial direction is an inclined surface that extends toward the power supply unit 21 in the axial direction from the other side in the circumferential direction toward the one side. .
The lateral engagement convex portion 102 is formed in a tapered shape in which the width in the axial direction gradually decreases from one side in the circumferential direction to the other side. Specifically, the end face of the lateral engagement convex portion 102 facing the side opposite to the holding unit 22 in the axial direction extends toward the mouthpiece 23 in the axial direction as it goes from one side to the other side in the circumferential direction. It is considered as a surface. Thereby, at the time of the connection of the power supply unit 21 and the holding | maintenance unit 22, interference with the horizontal extension part 151 and the horizontal engagement convex part 102 can be suppressed, and an assembly property can be improved.

  As shown in FIG. 8, the sleeve 123 is fitted into a portion of the container holding cylinder 120 positioned closer to the mouthpiece 23 in the axial direction than the transmission cylinder 121 by press-fitting or the like. The transmission cylinder 121 described above is held in the axial direction between the second connecting member 122 and the sleeve 123. A female screw portion 123 a is formed on the inner peripheral surface of the sleeve 123.

<Mouthpiece>
11 is a cross-sectional view taken along line XI-XI in FIG. 12 is an exploded perspective view of the mouthpiece 23 corresponding to the line XII-XII in FIG.
As shown in FIGS. 11 and 12, the mouthpiece 23 includes a mouthpiece body 160 and anti-slip members (first anti-slip member 161 and second anti-slip member 162).
The mouthpiece 23 is formed with a suction port (accommodating space) 23 a that can accommodate the tobacco capsule 12. The mouthpiece body 160 is formed in a multistage cylindrical shape with the axis O as the central axis. A male screw portion 160a is formed at the end of the mouthpiece body 160 on the holding unit 22 side in the axial direction. The external thread 160a of the mouthpiece body 160 is detachably screwed to the internal thread 123a of the sleeve 123 described above. The mouthpiece body 160 may be configured to be attached to and detached from the sleeve 123 by a method other than screwing (for example, fitting or the like).

  In the mouthpiece main body 160, an abutting flange 165 is formed at a portion located on the opposite side of the holding unit 22 in the axial direction with respect to the male screw portion 160a. The abutting flange 165 is formed in an annular shape that projects outward in the radial direction. The abutting flange 165 is abutted against the holding unit 22 in the axial direction in a state where the mouthpiece 23 is mounted on the holding unit 22. Note that the abutting flange 165 gradually decreases in outer diameter as it is separated from the holding unit 22 in the axial direction.

  A partition portion 167 that partitions the inside of the mouthpiece body 160 in the axial direction is formed at the end of the mouthpiece body 160 on the holding unit 22 side in the axial direction. In the partition part 167, a through hole 168 that penetrates the partition part 167 in the axial direction is formed at a position overlapping the axis O. The through-hole 168 has, for example, an oval shape with one direction as a longitudinal direction in the radial direction. Note that the shape of the through hole 168 in plan view may be a perfect circle shape, a polygonal shape, or the like.

  The first anti-slip member 161 is integrally formed of a resin material such as silicone resin. The first anti-slip member 161 includes a ring portion 169, a fitting protrusion 170, and a contact protrusion 171.

  The ring portion 169 is fitted in the mouthpiece body 160 from the holding unit 22 side in the axial direction. The first anti-slip member 161 is positioned in the axial direction with respect to the mouthpiece body 160 by the ring portion 169 being abutted against the partition portion 167 described above in the axial direction.

  A communication hole 169 a is formed at the center of the ring portion 169. The communication hole 169a allows the inside of the holding unit 22 and the inside of the mouthpiece body 160 to communicate with each other through the above-described through hole 168.

  The fitting protrusions 170 are formed in a pair at positions facing each other in the radial direction with the communication hole 169a interposed therebetween on the inner peripheral edge of the ring portion 169. The fitting protrusion 170 protrudes from the ring portion 169 in the axial direction on the side opposite to the holding unit 22. Each fitting protrusion 170 is fitted to both ends in the radial direction in the above-described through hole 168. Accordingly, the first anti-slip member 161 is positioned in the circumferential direction with respect to the mouthpiece body 160. In the present embodiment, the configuration in which the fitting protrusion 170 is fitted in the through hole 168 will be described, but the fitting protrusion 170 may be fitted in a hole different from the through hole 168. Good.

  The contact protrusion 171 protrudes from the ring portion 169 toward the holding unit 22 in the axial direction. The contact protrusion 171 is formed in a circular shape centered on the axis O. In the present embodiment, two contact protrusions 171 are formed concentrically. The first anti-slip member 161 may be configured without the contact protrusion 171.

  The second anti-slip member 162 is integrally formed of a resin material such as silicone resin. The second anti-slip member 162 is fitted into the mouthpiece body 160 from the side opposite to the axial holding unit 22. The second anti-slip member 162 is axially positioned with respect to the mouthpiece body 160 by being abutted against the partition part 167 described above in the axial direction.

<Tobacco capsule>
As shown in FIGS. 2 and 11, the cigarette capsule 12 is detachably mounted in the mouthpiece body 160 from the side opposite to the holding unit 22 in the axial direction. The tobacco capsule 12 includes a capsule part 180 and a filter part 181.

As shown in FIG. 11, the capsule portion 180 is formed in a bottomed cylindrical shape having an axis O as a central axis. A mesh opening that penetrates the bottom wall portion 186 in the axial direction is formed in the bottom wall portion 186 that closes the opening on the holding unit 22 side in the axial direction in the capsule portion 180.
The filter unit 181 is fitted into the capsule unit 180 from the side opposite to the axial holding unit 22. Tobacco leaves are enclosed in a space defined by the capsule unit 180 and the filter unit 181.

<Cartridge>
As shown in FIG. 2, the cartridge 11 stores a liquid aerosol source and atomizes the liquid aerosol source. The cartridge 11 is accommodated in the transmission cylinder 121 of the holding unit 22.

FIG. 13 is a cross-sectional view of the cartridge 11 along the axial direction. FIG. 14 is an exploded perspective view of the cartridge 11.
As shown in FIGS. 13 and 14, the cartridge 11 includes a bottomed cylindrical tank (container body) 191, a substantially disk-shaped gasket 192 housed in the tank 191, and a substantially disk-shaped mesh body 193. , A heating unit 194, an atomizing container (container body) 195, and a heater holder (container body) 196 that closes the opening 191 a of the tank 191.

FIG. 15 is a perspective view of the tank 191 viewed from the opening 191a side.
As shown in FIGS. 13 to 15, two engagement holes 198 are formed in the peripheral wall 191 b of the tank 191 on the bottom 191 c side slightly from the opening 191 a. The engagement hole 198 is for fixing the heater holder 196 to the tank 191. The engagement hole 198 is formed in a rectangular shape when viewed from the radial direction so as to be long in the circumferential direction. The two engagement holes 198 are disposed opposite to each other across the axis Q of the tank 191. Note that the axis Q coincides with the axis O of the main unit 10 in a state where the cartridge 11 is housed in the transmission cylinder 121. The axis Q is an axis common to each part constituting the cartridge 11. In the following description, the axis Q is not limited to the axis Q of the tank 191, and is used in the description of each part constituting the cartridge 11.

  A guide recess 198a is formed on the inner peripheral surface of the peripheral wall 191b of the tank 191 slightly closer to the opening 191a from the engagement hole 198. The guide recess 198a is also opened on the opening 191a side. The guide recess 198a has a role of guiding an engagement piece 206 described later when the heater holder 196 is fixed to the tank 191.

  The bottom 191c of the tank 191 is formed with a through hole 191d penetrating the bottom 191c at the radial center. An annular channel pipe (channel) 197 that protrudes from the inner surface of the bottom 191c into the tank 191 is integrally formed at the periphery of the through hole 191d. And the inside of the flow-path pipe | tube 197 and the through-hole 191d are connected. The channel tube 197 serves as an atomized aerosol channel. The flow channel pipe 197 extends from the bottom 191c to a position closer to the opening 191a than the substantially center in the axial direction of the tank 191.

  A plurality of (three in this embodiment) ribs 199 straddling the peripheral wall 191b and the flow channel tube 197 are integrally formed between the inner peripheral surface of the peripheral wall 191b and the outer peripheral surface of the flow channel tube 197. The ribs 199 are arranged at equal intervals in the circumferential direction so as to be radial when viewed from the axial direction. The rib 199 extends from the bottom 191c of the tank 191 to a position slightly ahead of the end (tip) on the opening 191a side of the flow channel pipe 197. The rib 199 is for supporting the flow path pipe 197.

  On the inner peripheral surface of the peripheral wall 191b, a convex portion 201 is integrally formed at a location where a rib 199 is formed. The convex portion 201 extends in the axial direction along the rib 199. The convex portion 201 is formed between the bottom portion 191 c of the tank 191 and the end portion (tip end) on the opening 191 a side of the rib 199 and the tip end of the flow channel tube 197. The convex portion 201 has a role of increasing the mechanical strength of the tank 191 and a role of positioning the gasket 192.

  The gasket 192 is formed so that the outer diameter is substantially the same as the inner diameter of the tank 191. The gasket 192 positions a mesh body 193, which will be described later, and maintains the posture of the mesh body 193. That is, the gasket 192 supports a mesh body 193 described later. An insertion hole 192a into which the flow channel tube 197 can be inserted is formed at the radial center of the gasket 192. A gasket 192 is accommodated in the tank 191 so that the flow path tube 197 is inserted into the insertion hole 192a. Further, the gasket 192 has one surface 192b abutted against the end surface 201a of the convex portion 201, and positioning in the tank 191 is performed. With the gasket 192 positioned, the outer peripheral surface of the gasket 192 is in contact with the inner peripheral surface of the tank 191. Further, the insertion hole 192 a of the gasket 192 is in contact with the outer peripheral surface of the flow channel tube 197.

  A plurality (four in the present embodiment) of openings 192c are formed in a large portion between the insertion hole 192a and the outer peripheral surface of the gasket 192. The opening 192c is formed in an arc shape when viewed from the axial direction. The openings 192c are arranged at equal intervals in the circumferential direction. The tank 191 communicates with both sides of the gasket 192 through the opening 192c. A mesh body 193 is disposed on the other surface 192d opposite to the one surface 192b of the gasket 192.

  The mesh body 193 is a porous member having liquid absorbency. The mesh body 193 is made of, for example, a cotton fiber material. The mesh body 193 is also formed in substantially the same shape as the gasket 192. That is, the mesh body 193 is formed so that the outer diameter is substantially the same as the inner diameter of the tank 191. An insertion hole 193 a into which the flow channel tube 197 can be inserted is formed at the radial center of the mesh body 193. The channel tube 197 is inserted into the insertion hole 193a, and the one surface 193b of the mesh body 193 overlaps the other surface 192d of the gasket 192, whereby the position of the mesh body 193 is determined. The outer peripheral surface of the mesh body 193 is in contact with the inner peripheral surface of the tank 191. Further, the insertion hole 193 a of the mesh body 193 is in contact with the outer peripheral surface of the flow channel tube 197.

By the mesh body 193, the inside of the tank 191 is partitioned into a liquid storage chamber 202 on the bottom 191c side and an opening chamber 203 on the opening 191a side. A liquid aerosol source is stored in the liquid storage chamber 202. The opening chamber 203 is a room for atomizing the aerosol source sucked up by the mesh body 193.
The other surface 193 c opposite to the one surface 193 b of the mesh body 193 is exposed to the opening chamber 203. A heating unit 194 is provided so as to be connected to the other surface 193 c of the mesh body 193 exposed in the opening chamber 203.

The heating unit 194 is for atomizing a liquid aerosol source. The heating unit 194 is accommodated in the opening chamber 203. The heating unit 194 includes a wick 204 formed in a substantially U shape and a heating wire 205 that heats the wick 204. The wick 204 is a substantially cylindrical member having a porous shape and liquid absorption. Such a wick 204 is curved and deformed in a substantially U shape.
More specifically, the wick 204 includes two axially extending portions 204a extending in the axial direction, and a radially extending portion 204c that connects one ends of the two axially extending portions 204a via a bent portion 204b. , Is configured. The mesh body 193 is connected to the other end of the axially extending portion 204a. As a result, the aerosol source absorbed by the mesh body 193 is sucked up by the wick 204.

  The heating wire 205 has a heating wire body 205a formed in a spiral shape so as to surround the radially extending portion 204c of the wick 204, and the heater holder 196 side along the axial direction from both ends of the heating wire body 205a. And two terminal portions 205b extending. When the wick 204 is heated by the heating wire 205, the aerosol source absorbed by the wick 204 is atomized. The tips of the two terminal portions 205b are folded back toward the mesh body 193 side. The two terminal portions 205b are connected to the heater holder 196.

FIG. 16 is a perspective view of the heater holder 196 viewed from the power supply unit 21 side (first side in the axial direction).
As shown in FIGS. 13 and 16, the heater holder 196 is formed in a substantially bottomed cylindrical shape. The opening 191a of the tank 191 is closed so that the opening 196a of the heater holder 196 faces the tank 191 side.

  The peripheral wall 196b of the heater holder 196 is formed so that the outer diameter is substantially the same as the outer diameter of the peripheral wall 191b of the tank 191. On the outer peripheral surface of the peripheral wall 196b, a fitting portion 196d having a reduced diameter through a step surface 196c is formed between the approximate center in the axial direction and the opening 196a. The fitting portion 196d is fitted to the inner peripheral surface of the peripheral wall 191b in the tank 191. Further, the end portion on the opening 191a side of the peripheral wall 191b of the tank 191 is brought into contact with the step surface 196c of the peripheral wall 196b. Thereby, the positioning of the heater holder 196 in the axial direction with respect to the tank 191 is performed.

In addition, two engagement pieces 206 are integrally formed at the end of the fitting portion 196d on the opening 196a side at a position corresponding to the two engagement holes 198 of the tank 191. The two engagement pieces 206 protrude toward the corresponding engagement hole 198. In other words, the two engagement pieces 206 are disposed opposite to each other across the axis Q of the heater holder 196.
The engagement piece 206 is engaged with the engagement hole 198 of the tank 191 to integrate the tank 191 and the heater holder 196. The engaging piece 206 is formed to be elastically deformable in the radial direction. An engagement claw 207 that can be inserted into the engagement hole 198 of the tank 191 protrudes radially outward from the tip of the engagement piece 206.

  The engaging claw 207 is formed so that the cross-sectional shape of the plane along the axial direction and the radial direction is substantially triangular. That is, the engaging claw 207 is an inclined surface 207a so that the surface on the distal end side is inclined toward the base end side (the fitting portion 196d side) as it goes radially outward. On the other hand, the flat surface 207b on the proximal end side of the engaging claw 207 is orthogonal to the axial direction.

  In addition, the peripheral wall 196b of the heater holder 196 is formed with a recess 208 aligned with the engaging claw 207 in the axial direction on the outer peripheral surface avoiding the fitting portion 196d. The recess 208 is open on the radially outer side and the stepped surface 196c side. The recess 208 is formed with a first intake hole 209 that penetrates the peripheral wall 196b in the thickness direction. The inside and outside of the peripheral wall 196b communicate with each other through the first intake hole 209.

Further, on the peripheral wall 196b of the heater holder 196, three engagement recesses 210 are formed on the bottom 196e side. The three engaging recesses 210 are arranged at equal intervals in the circumferential direction (120 ° intervals in the circumferential direction) and so as to avoid the positions where the recesses 208 are formed. The engaging recess 210 is formed such that the radially outer side and the bottom 196e are opened. On the bottom portion 196e side of the engaging recess 210, a tapered chamfered portion 210a is formed in which the circumferential width of the engaging recess 210 gradually increases toward the bottom portion 196e.
The vertical engagement convex portions 101a to 101c of the first connecting member 81 are inserted into the three engaging concave portions 210 formed in this way. Accordingly, the heater holder 196 (cartridge 11) and the first connecting member 81 are connected, and the heater holder 196 (cartridge 11) and the first connecting member 81 are positioned in the circumferential direction.

A substantially plate-like connection wall 211 that is erected along the axial direction from the inner surface is integrally formed with the bottom 196 e of the heater holder 196. The connection wall 211 extends along the radial direction passing through the axis Q of the heater holder 196, and both ends in the radial direction are connected to the inner surface of the peripheral wall 196b. The connection wall 211 divides the heater holder 196 into two rooms.
Further, two slits 212 are formed in the bottom portion 196e of the heater holder 196. The two slits 212 are arranged along both sides of the connection wall 211 in the plate thickness direction.

  Electrodes 213 and 214 are respectively provided on both sides in the thickness direction of the connection wall 211. The electrodes 213 and 214 include lead electrode portions 213a and 214a provided on the connection wall 211, and connection electrode portions (bending and extending from the lead electrode portions 213a and 214a to the outer surface of the bottom portion 196e via the corresponding slits 212, respectively. Plane electrodes) 213b and 214b. And the two terminal parts 205b of the heating wire 205 which comprises the heating part 194 are separately connected to each extraction electrode part 213a, 214a.

  The connection electrode portions 213b and 214b are formed in a substantially semicircular shape on both sides in the radial direction with an insulating portion 215 described later interposed therebetween. Specifically, the two connection electrode portions 213b and 214b are arranged in such a manner that linear sides 213c and 214c face each other in the radial direction when viewed from the axial direction. In addition, the two connection electrode portions 213b and 214b have outer peripheral portions formed by arc-shaped arc sides 213d and 214d as viewed in the axial direction. The end of the connection wall 211 is interposed between the sides 213c and 214c of the two connection electrode portions 213b and 214b. Each connection electrode portion 213b, 214b is in contact with the tip of a pin electrode 49 (electrode body) held by each electrode holding portion 50 in a state where the heater holder 196 (cartridge 11) and the first connection member 81 are connected. Is done. That is, the bottom portion 196e of the heater holder 196 functions as an electrode arrangement surface that faces the above-described base surface 91a in the axial direction when the cartridge 11 is mounted on the main body unit 10.

  Here, the connection electrode portions 213b and 214b rotate the pin electrode 49 (the first pin electrode 49a and the second pin electrode 49b) when the power supply unit 21 and the cartridge 11 rotate relative to each other around the axis O (axis Q). At least formed on the trajectory. That is, each of the connection electrode portions 213b and 214b has a first virtual circumference C1 passing through the first pin electrode 49a around the axis O and a second virtual circumference C2 passing through the second pin electrode 49b around the axis O. It is formed in a region including both. In the present embodiment, since the pin electrodes 49a and 49b are arranged in line symmetry, the virtual circumferences C1 and C2 coincide with each other.

  In addition, since the end portion of the connection wall 211 interposed between the sides 213c and 214c of the two connection electrode portions 213b and 214b extends along the radial direction passing through the axis Q of the heater holder 196, in other words, For example, it can be said that the connection wall 211 is provided on the virtual straight line T1 in a predetermined direction among the virtual straight lines T1 connecting the two pin electrodes 49. This predetermined direction coincides with a virtual straight line T <b> 2 passing through the center in the circumferential direction of one engagement recess 210 and the axis Q of the heater holder 196 among the three engagement recesses 210 formed in the heater holder 196. . The connection wall 211 is formed so that the width in the short direction (circumferential direction around the axis Q) is slightly larger than the shaft diameter of each pin electrode 49.

  The end portion of the connection wall 211 arranged in this manner functions as an insulating portion 215 that partitions the connection electrode portions 213b and 214b in the circumferential direction. The heater holder 196 (cartridge 11) and the first connecting member 81 are connected by disposing the insulating portion 215 on an imaginary straight line T2 passing through the circumferential center of one engaging recess 210 and the axis Q of the heater holder 196. In this state, the tip of each pin electrode 49 reliably contacts the two connection electrode portions 213b and 214b separately. That is, the two pin electrodes 49 do not simultaneously contact one of the two connection electrode portions 213b and 214b. As described above, the connection electrode portions 213b and 214b of the present embodiment include the virtual circumferences C1 and C2 on both sides in the radial direction with the virtual straight line T2 (insulating portion 215) interposed therebetween, and the virtual circumference C1. , C2 is formed in a semicircular shape extending outward in the radial direction (arc sides 213d, 214d) and inward (one side 213c, 214c).

  Further, on the arc sides 213d and 214d of the two connection electrode portions 213b and 214b, concave portions 213e and 214e that are recessed inward in the radial direction are formed at substantially the center in the circumferential direction. In the bottom portion 196e of the heater holder 196, among the portions corresponding to the concave portions 213e and 214e of the connection electrode portions 213b and 214b, the second intake hole 216 penetrating in the thickness direction of the bottom portion 196e is formed in the portion corresponding to the concave portion 213e. Is formed. The inside and outside of the bottom portion 196e communicate with each other through the second intake hole 216.

  Further, in the bottom portion 196e, recesses 196f having the same shape as the connection electrode portions 213b and 214b as viewed from the axial direction are formed at locations corresponding to the connection electrode portions 213b and 214b. Connection electrode portions 213b and 214b are accommodated in the recess 196f. By forming the recess 196f, the surfaces of the connection electrode portions 213b and 214b and the surface of the bottom portion 196e where the connection electrode portions 213b and 214b are not disposed are positioned on the same plane. A part of the atomization container 195 is accommodated so as to be fitted to the inner peripheral surface of the peripheral wall 196b of the heater holder 196.

  As shown in FIG. 11, in a state where the cartridge 11 is mounted in the holding unit 22, the outer peripheral portion of the bottom portion 196 e abuts on the surrounding convex portion 93 described above in the axial direction. As a result, a space surrounded by the bottom portion 196e and the connection cap 80 (the base surface 91a and the surrounding convex portion 93) forms a buffer space S3 that allows the inside of the communication port 51 to communicate with the second intake hole 216. In the example of FIG. 11, the communication port 51 and the second air intake hole 216 are spaced apart from each other in the axial direction and arranged at positions shifted from each other in the circumferential direction. The communication port 51 and the second intake hole (opening portion on the second surface of the flow path) 216 may be arranged at positions shifted from each other in the radial direction.

  The communication port 51 of this embodiment communicates with the flow path pipe 197 through the buffer space S3, the second intake hole 216, and the like. In addition, the part which the surrounding convex part 93 contact | abuts among the bottom parts (2nd surface) 196e is formed in the flat surface orthogonal to an axial direction. Of the bottom 196e, the portion with which the surrounding convex portion 93 abuts may be a convex surface, a concave surface, an inclined surface, or the like.

  In the present embodiment, the go convex portion 93 is in close contact with the bottom portion 196e in an elastically deformed state by the cartridge 11 being pressed by the mouthpiece 23. However, the surrounding convex portion 93 and the bottom portion 196e are not necessarily close to each other and may be separated from each other. That is, if a negative pressure can be generated in the pressure fluctuation chamber S1 through the communication port 51 during suction, a minute gap may be formed between the surrounding convex portion 93 and the bottom portion 196e.

FIG. 17 is a perspective view of the atomization container 195 viewed from the mesh body 193 side (second side in the axial direction).
The atomization container 195 shown in FIGS. 13, 14, 17 and the like is formed of an elastic member, for example, a resin material such as silicone resin. The atomization container 195 is provided between the other surface 193c of the mesh body 193 and the vicinity of the bottom 196e of the heater holder 196 in the axial direction. That is, the atomizing container 195 is formed in a substantially cylindrical shape so as to surround the heating unit 194, and the cylindrical part 217 fitted to the inner peripheral surface of the peripheral wall 191 b in the tank 191 and the inner part of the peripheral wall 196 b in the heater holder 196. A substantially block-shaped fitting portion 218 fitted to the peripheral surface is integrally formed.

  A stepped surface 217a is formed on the end of the cylindrical portion 217 on the mesh body 193 side at the most central portion in the radial direction. By forming the stepped surface 217a, a ring-shaped protruding portion 219 in which the outer peripheral portion of the cylindrical portion 217 protrudes toward the mesh body 193 side is formed. An end portion of the protruding portion 219 is brought into contact with the other surface 193c of the mesh body 193. The outer diameter of the protruding portion 219 is approximately the same as or slightly smaller than the inner diameter of the peripheral wall 191b in the tank 191.

A housing recess 220 is formed in most of the stepped surface 217a so as to correspond to the shape of the heating unit 194. The storage recess 220 serves as an atomization chamber M in which the aerosol atomized by the heating unit 194 is stored. This atomization chamber M is in communication with a flow path pipe 197 of the tank 191.
A seating surface 221 on which the bent portion 204 b of the wick 204 constituting the heating unit 194 is placed is formed in the housing recess 220. A concave portion 221 a for avoiding interference with the terminal portion 205 b of the heating wire 205 constituting the heating portion 194 is formed on the radially inner surface of the seat surface 221.

A seal portion 222 is formed on the outer peripheral surface of the cylindrical portion 217 near the fitting portion 218. The seal portion 222 is formed so as to protrude outward in the radial direction over the entire circumference except for a notch portion 222a described later. The seal portion 222 has a role of ensuring a sealing property between the cylindrical portion 217 and the peripheral wall 191 b of the tank 191, and also has a role of suppressing removal of the atomization container 195 from the tank 191.
The outer diameter of the seal portion 222 is slightly larger than the inner diameter of the peripheral wall 191b of the tank 191. For this reason, in a state where the atomization container 195 is housed in the tank 191, the seal portion 222 is compressed in the radial direction. Thereby, the sealing performance of the seal portion 222 is ensured, and the atomization container 195 is prevented from coming off from the tank 191 due to the frictional resistance of the seal portion 222.

  Further, the seal portion 222 has two cutout portions 222a. The two notches 222a are disposed opposite to each other across the axis Q of the tank 191. The cutout portion 222a allows the outside air to communicate with a later-described liquid pool portion 223.

  A liquid reservoir 223 is formed on the outer peripheral surface of the cylindrical portion 217 between the tip of the protruding portion 219 and the seal portion 222. When the mesh body 193 and the wick 204 are saturated, the liquid reservoir 223 leaks the liquid aerosol source stored in the liquid storage chamber 202 of the tank 191 along the inner peripheral surface of the peripheral wall 191b of the tank 191. In this case, the leaked aerosol source is temporarily stored.

The liquid reservoir portion 223 is configured so that the gap between the outer peripheral surface of the cylindrical portion 217 and the peripheral wall 191b of the tank 191 gradually narrows as the entire outer peripheral surface of the cylindrical portion 217 moves from the seal portion 222 toward the tip of the protruding portion 219. It is a recessed part formed by forming diagonally. In other words, the liquid reservoir portion 223 is a concave portion in which the gap between the outer peripheral surface of the cylindrical portion 217 and the peripheral wall 191b of the tank 191 gradually increases toward the opening 191a of the tank 191. Since the liquid reservoir 223 is thus formed, a narrow portion 279 is formed in the vicinity of the protrusion 219 of the cylindrical portion 217 so that a minute gap is formed between the protrusion 219 and the peripheral wall 191b of the tank 191.
Here, the end portion of the protruding portion 219 in the cylindrical portion 217 is in contact with the other surface 193 c of the mesh body 193. The mesh body 193 has an outer peripheral surface in contact with the inner peripheral surface of the tank 191. For this reason, the narrow portion 279 formed between the protruding portion 219 of the cylindrical portion 217 and the peripheral wall 191b of the tank 191 is covered (closed) by the outer peripheral portion of the mesh body 193.

  Further, a concave portion 224 for receiving the engagement piece 206 is formed on the outer peripheral surface of the cylindrical portion 217 at a position corresponding to the engagement piece 206 closer to the heater holder 196 than the seal portion 222. By inserting the engagement piece 206 into the recess 224, the atomization container 195 and the heater holder 196 are positioned in the circumferential direction. Further, the bottom surface 224 a of the concave portion 224 in the cylindrical portion 217 is brought into contact with the inner surface on the radially inner side of the engagement piece 206.

  The fitting portion 218 of the atomizing container 195 is formed in a substantially cylindrical shape that can be fitted to the inner peripheral surface of the peripheral wall 196 b of the heater holder 196. That is, the fitting portion 218 is formed such that the outer diameter is smaller than the outer diameter of the cylindrical portion 217 via the step portion 217 b. A slit 225 into which the connection wall 211 of the heater holder 196 can be inserted is formed in the fitting portion 218. In addition, the fitting portion 218 is formed with a heating wire slit (not shown) that is communicated with the slit 225 and into which the terminal portion 205b of the heating wire 205 can be inserted. By inserting the terminal portion 205b of the heating wire 205 into the heating wire slit, the terminal portion 205b is held in the atomization container 195. In addition, the lead electrode portions 213 a and 214 a provided on the connection wall 211 are connected to the terminal portion 205 b of the heating wire 205.

  Further, the fitting portion 218 is formed with a ventilation path 226 at a location corresponding to the first intake hole 209 and the second intake hole 216 of the heater holder 196. Further, the fitting portion 218 is formed with a slit 218 a that communicates the slit 225, the air passage 226, and the atomizing chamber M (housing recess 220) of the cylindrical portion 217. The air passage 226 and the atomization chamber M (the storage recess 220) of the atomization container 195 are communicated with each other through the slit 218a. Thus, the atomization chamber M (housing recess 220) of the atomization container 195 and the first intake hole 209 and the second intake hole 216 of the heater holder 196 are communicated with each other through the air passage 226 and the slit 218a.

<Assembly structure of the entire suction device>
FIG. 18 is a front view of the aspirator 1.
As shown in FIG. 18, the main body unit 10 of the suction device 1 includes a connection unit 300 that connects the power supply unit 21, the holding unit 22, and the mouthpiece 23 in the axial direction in which the axis O (center axis) extends. . The connection unit 300 includes a first rotation connection unit 301 that connects the power supply unit 21 and the holding unit 22, and a second rotation connection unit 302 that connects the holding unit 22 and the mouthpiece 23.

  In the following description, among the circumferential directions around the axis O, the direction of rotating the axis O clockwise in the plan view of the power supply unit 21 side from the mouthpiece 23 side along the axis O is the rotational direction M1. The direction in which the axis O circulates counterclockwise is referred to as a rotation direction M2.

  The first rotation connection unit 301 connects and disconnects the power supply unit 21 and the holding unit 22 by relative rotation about the axis O between the power supply unit 21 and the holding unit 22. When the power supply unit 21 is used as a reference, when the holding unit 22 is rotated in the rotation direction M1 with respect to the power supply unit 21, the power supply unit 21 and the holding unit 22 are connected. When the holding unit 22 is rotated in the rotation direction M2 with respect to the power supply unit 21, the connection between the power supply unit 21 and the holding unit 22 is released.

  The first rotation connecting portion 301 includes the rotation connecting mechanism 310 by the first connecting member 81 and the second connecting member 122 shown in FIG. 9 described above, and the annular piece 82 and the second connecting member 122 shown in FIGS. 9 and 10 described above. A lock mechanism 311 is provided. Specifically, as shown in FIG. 9, the rotary connection mechanism 310 is provided with the lateral engagement convex portion 102 provided on the first connection member 81 of the power supply unit 21 on the second connection member 122 of the holding unit 22. After inserting the engaging groove 158 in the axial direction, the holding unit 22 is rotated with respect to the power supply unit 21 in the rotation direction M1 (see FIG. 18), so that the lateral engagement convex portion 102 is locked to the locking piece 142. The power supply unit 21 and the holding unit 22 are connected.

  The lock mechanism 311 regulates the rotation of the holding unit 22 in the rotation direction M2 in which the connection by the rotation connection mechanism 310 is released. Specifically, as shown in FIGS. 9 and 10, the lock mechanism 311 is provided on the annular piece 82 attached to the power supply unit 21, and the bending portion 106 that protrudes outward in the radial direction, and the holding unit 22. Provided on the second connecting member 122, and a distal end portion 142 a that protrudes inward in the radial direction relative to the bottom portion of the engaging recess 155 in the locking piece 142. The distal end portion 142 a of the locking piece 142 is located on the movement path of the bending portion 106 around the axis O.

When the rotary connection mechanism 310 is connected (when the holding unit 22 is rotated in the rotation direction M1 with respect to the power supply unit 21), the bending portion 106 and the tip end portion 142a of the locking piece 142 come into contact with each other, and the bending portion 106 is The tip portion 142a is overcome while elastically deforming radially inward. After the bending portion 106 gets over the distal end portion 142a, the bending portion 106 is restored and deformed outward in the radial direction, and is engaged with the engaging recess 155. When the bent portion 106 engages with the engaging recess 155, the bent portion 106 opposes and locks with the tip end portion 142a of the locking piece 142 in the rotation direction M1. As a result, the connection between the power supply unit 21 and the holding unit 22 cannot be released unless a certain amount of force is applied.

  According to the first rotation connecting portion 301, even if the power supply unit 21 and the holding unit 22 can be divided as in the present embodiment for the purpose of improving manufacturing efficiency, the power supply unit by the rotation connecting mechanism 310 is used. 21 and the holding unit 22 can be easily connected, and the reliability (connection strength) of the connection state between the power supply unit 21 and the holding unit 22 by the lock mechanism 311 can be improved. In addition, since the lock mechanism 311 is locked simultaneously with the connection by the rotary connection mechanism 310, the convenience (usability) of assembly can be improved.

  In the lock mechanism 311, as shown in FIG. 10, the bending portion 106 that is elastically deformed is disposed on the radially inner side of the locking piece 142 that is thicker and more rigid than the annular piece 82. For this reason, in a state where the power supply unit 21 and the holding unit 22 are connected, the bending portion 106 is covered and protected from the outside by the locking piece 142. Therefore, even if there is a drop, a collision or the like, the number of cases in which the bent portion 106 is damaged is reduced. Thereby, the intensity | strength with respect to the repeated use of an assembly is ensured and the reliability of a lock | rock improves.

  As shown in FIG. 9, the locking piece 142 that the bending portion 106 locks forms an engagement groove 158 that engages with the lateral engagement convex portion 102 of the rotary connection mechanism 310. Thus, the locking piece 142 forms a part (engagement groove 158) of the rotation connection mechanism 310 and a part (tip portion 142a (convex portion)) of the lock mechanism 311. The reliability (connection strength) of the connection state can be improved relatively easily.

  As illustrated in FIG. 18, the second rotation connection unit 302 performs connection and disconnection between the holding unit 22 and the mouthpiece 23 by relative rotation around the axis O between the holding unit 22 and the mouthpiece 23. When the holding unit 22 is used as a reference, when the mouthpiece 23 is rotated in the rotation direction M1 with respect to the holding unit 22, the holding unit 22 and the mouthpiece 23 are connected. Further, when the mouthpiece 23 is rotated in the rotation direction M2 with respect to the holding unit 22, the connection between the holding unit 22 and the mouthpiece 23 is released.

  As shown in FIG. 11 described above, the second rotation connecting portion 302 includes a male screw portion 160 a provided in the mouthpiece 23 and a female screw portion 123 a provided in the holding unit 22. Specifically, the second rotation connecting portion 302 rotates the male screw portion 160a provided in the mouthpiece 23 in the rotation direction M1 with respect to the female screw portion 123a provided in the holding unit 22, so that the holding unit 22 and The mouthpiece 23 is connected. Further, the male screw part 160a provided on the mouthpiece 23 is rotated in the rotation direction M2 with respect to the female screw part 123a provided on the holding unit 22, thereby releasing the connection between the holding unit 22 and the mouthpiece 23.

  As shown in FIG. 18, the rotation direction M <b> 1 is a connection direction of the holding unit 22 to the power supply unit 21 and also a connection direction of the mouthpiece 23 to the holding unit 22. The rotation direction M <b> 2 is a connection release direction of the holding unit 22 with respect to the power supply unit 21 and also a connection release direction of the mouthpiece 23 with respect to the holding unit 22. As described above, in the first rotation connection portion 301 and the second rotation connection portion 302, the rotation directions of the connection around the axis O and the connection release are the same. For this reason, it is possible to give the user a unity of unit assembly work and improve convenience (usability).

  The frequency of releasing the connection between the mouthpiece 23 and the holding unit 22 due to replacement of the cartridge 11 is higher than the frequency of releasing the connection between the power supply unit 21 and the holding unit 22. In the present embodiment, in the first rotation connection unit 301, the connection between the power supply unit 21 and the holding unit 22 is released by applying the first torque 301T around the axis O, and in the second rotation connection unit 302, The connection between the holding unit 22 and the mouthpiece 23 is released by applying a second torque 302T smaller than the first torque 301T. Thereby, when the mouthpiece 23 is removed from the holding unit 22, it is possible to prevent the holding unit 22 and the power supply unit 21 from rotating together.

  The first torque 301T is a peak value of the torque value when the holding unit 22 rotates in the rotation direction M2 with respect to the power supply unit 21, and is against the elastic deformation in the radial direction of the bending portion 106 shown in FIGS. It depends on the spring coefficient. The second torque 302T is a peak value of the torque value when the mouthpiece 23 rotates with respect to the holding unit 22 in the rotation direction M2, and includes a static frictional force between the male screw portion 160a and the female screw portion 123a shown in FIG. Depends on. Note that the first torque 301T may be 1.5 times or more, for example, than the second torque 302T.

  Since the first rotation connection portion 301 and the second rotation connection portion 302 have different connection structures, it is easy to adjust the magnitude relationship between the first torque 301T and the second torque 302T. For example, when the material of the bending portion 106 (annular piece 82) forming the lock mechanism 311 of the first rotation connecting portion 301 is selected and the thickness is adjusted, the spring coefficient for the elastic deformation in the radial direction of the bending portion 106 is changed. The magnitude of the first torque 301T with respect to the second torque 302T can be easily adjusted.

FIG. 19 is a cross-sectional view along the axial direction when the mouthpiece 23 is removed from the aspirator 1.
As shown in FIG. 19, in the suction device 1, the cartridge 11 can be attached and detached in the axial direction by removing the mouthpiece 23 from the main body unit 10. In addition, the cartridge unit 320 is obtained by removing the mouthpiece 23 from the main unit 10. That is, the cartridge housing part 320 includes the holding unit 22 and the power supply unit 21.

  The cartridge housing portion 320 forms a bottomed cylindrical cartridge housing space 321. A peripheral wall of the cartridge housing portion 320 that forms the cartridge housing space 321 is formed by the holding unit 22. In addition, the bottom of the cartridge housing portion 320 that forms the cartridge housing space 321 is formed by the power supply unit 21. That is, the peripheral wall (holding unit 22) of the cartridge housing part 320 is detachable from the bottom part (power supply unit 21) of the cartridge housing part 320.

  At the bottom of the cartridge housing portion 320, there is a vertical engagement convex portion 101 (the reference numeral 101 is attached to the vertical engagement convex portions 101a to 101c in FIG. 19 and subsequent drawings) provided on the first connecting member 81 described above. Standing in the direction. The vertical engagement convex portion 101 is arranged to be insertable in the axial direction with respect to the engagement concave portion 210 provided in the cartridge 11. That is, the vertical engagement convex portion 101 and the engagement concave portion 210 are arranged on the same radius with the axis O as the center. The vertical engagement convex portion 101 and the engagement concave portion 210 form a first rotation restricting portion 330 that restricts relative rotation around the axis O with respect to the cartridge accommodating portion 320 (cartridge accommodating space 321) of the cartridge 11.

  In the first rotation restricting portion 330, when the cartridge 11 and the cartridge housing portion 320 are rotated relative to each other around the axis O, the vertical engaging convex portion 101 provided on the same radius is inserted into the engaging concave portion 210, and the cartridge Rotation restriction around the 11 axis O is performed. As a result, the cartridge 11 is positioned in the circumferential direction, and electrical connection between the connection electrode portions 213b and 214b (see FIG. 10) of the bottom portion 196e of the cartridge 11 and the pin electrode 49 of the power supply unit 21 is ensured.

  The first rotation restricting portion 330, together with the mouthpiece 23, includes a positioning mechanism 340 that positions the cartridge 11 with respect to the cartridge housing portion 320 in conjunction with the screwing of the mouthpiece 23 to the cartridge housing portion 320 (holding unit 22). Forming. According to the positioning mechanism 340, the cartridge 11 can be positioned simultaneously with the screwing of the mouthpiece 23 to the cartridge housing portion 320. Therefore, positioning of the detachable cartridge 11 with respect to the cartridge housing portion 320 is facilitated, and the complexity of assembly is eliminated. Further, it is not necessary to turn the cartridge 11 directly by hand.

  Specifically, the mouthpiece 23 includes the above-described first anti-slip member (cartridge abutting portion) 161 that rotates the cartridge 11 around the axis O with respect to the cartridge housing portion 320. The first anti-slip member 161 is attached to the mouthpiece body 160 and abuts against the cartridge 11 while the mouthpiece body 160 is connected to the holding unit 22. When the first anti-slip member 161 comes into contact with the cartridge 11, the cartridge 11 starts to rotate together with the mouthpiece 23, and when the circumferential positions of the engaging concave portion 210 and the vertical engaging convex portion 101 coincide, The cartridge 11 is lowered by gravity toward the bottom side of the cartridge housing portion 320, and the longitudinal engagement convex portion 101 is inserted into the engagement concave portion 210, whereby the cartridge 11 is positioned in the circumferential direction.

  Further, when the mouthpiece 23 is screwed in, the first anti-slip member 161 is compressed in the axial direction between the cartridge 11 supported by the power supply unit 21 (vertical engagement convex portion 101 and the like) and the mouthpiece body 160. Is done. As shown in FIG. 11, the first anti-slip member 161 presses the cartridge 11 toward the power supply unit 21 with the mouthpiece 23 screwed to the holding unit 22. As a result, the cartridge 11 is positioned in the axial direction.

  Since the first anti-slip member 161 is formed of silicone resin as described above, the first anti-slip member 161 generates a frictional force that rotates the cartridge 11 in the circumferential direction, and also generates a pressing force that presses the cartridge 11 in the axial direction. Cheap. As shown in FIG. 19, the first anti-slip member 161 has an abutting protrusion 171 formed on the facing surface 161 a that faces the cartridge 11. Since the contact of the first anti-slip member 161 with respect to the cartridge 11 is not flat contact by the contact protrusion 171, the contact pressure is increased, and the frictional force in the circumferential direction and the pressing force in the axial direction are more easily expressed.

  Further, as shown in FIG. 11, the contact protrusion 171 is crushed in the axial direction, so that the space between the through hole 191d of the cartridge 11 and the communication hole 169a of the first anti-slip member 161 is hermetically sealed. The flow path between the cartridge 11 and the mouthpiece 23 communicates, and the aerosol generated in the cartridge 11 can be sucked through the mouthpiece 23. Since the contact protrusion 171 is formed in a double ring shape (see FIG. 12), a double seal with high airtightness can be formed.

  As shown in FIG. 19, the mouthpiece 23 includes a second rotation restricting portion 350 that restricts relative rotation of the first anti-slip member 161 with respect to the mouthpiece main body 160. The second rotation restricting portion 350 includes a fitting protrusion 170 (see FIG. 12) provided on the first anti-slip member 161, a long through hole 168 (see FIG. 12) provided on the mouthpiece body 160, Is formed by. The fitting protrusions 170 extend in a pair in the axial direction toward the mouthpiece body 160 and are fitted to both longitudinal ends of the through hole 168.

  According to the second rotation restricting portion 350, even if the condensed aerosol accumulates between the mouthpiece main body 160 and the first anti-slip member 161, the first anti-slip member 161 slips on the mouthpiece main body 160 ( (Slip) can be prevented. For this reason, the cartridge 11 can be reliably positioned in the circumferential direction. Further, the through hole 168 may be formed as a long hole and integrated with the suction port 23a.

[Action]
<Assembler assembly method>
Next, a method for assembling the above-described suction device 1 will be described.
As shown in FIG. 2, when assembling the suction device 1 of the present embodiment, first, the holding unit 22 is assembled to the power supply unit 21. Specifically, after the lateral engagement convex portion 102 is inserted into the engagement groove 158 in the axial direction, the power supply unit 21 and the holding unit 22 are relatively rotated around the axis O. Then, the power supply unit 21 and the holding unit 22 are assembled with each other in the state where the axial rotation and the circumferential direction are positioned in the first rotation connecting portion 301 described above. In addition, when removing the power supply unit 21 and the holding | maintenance unit 22, the operation | movement reverse to the operation | movement mentioned above is performed.

  Subsequently, the cartridge 11 is inserted into the holding unit 22. Specifically, the cartridge 11 is inserted into the holding unit 22 with the connection electrode portions 213b and 214b of the cartridge 11 facing the holding unit 22 in the axial direction. When the circumferential positions of the vertical engagement convex portions 101a to 101c of the power supply unit 21 and the engagement concave portion 210 of the cartridge 11 coincide with each other, the vertical engagement convex portions 101a to 101c correspond to the corresponding engagement concave portions 210. Inserted inside. The engaging concave portion 210 is formed with a flattened portion 210a, while an inclined surface is formed at the tip of the vertical engaging convex portions 101a to 101c. For this reason, the vertical engagement convex portions 101 a to 101 c are smoothly inserted into the engagement concave portion 210. Accordingly, the cartridge 11 is positioned in the circumferential direction and the axial direction with respect to the power supply unit 21, and the cartridge 11 is assembled to the power supply unit 21 at a regular position.

  That is, of the pin electrodes 49 of the power supply unit 21, one pin electrode 49 and one of the connection electrode portions 213 b and 214 b of the cartridge 11 are connected. Further, the other pin electrode 49 is connected to the other of the connection electrode portions 213 b and 214 b in the cartridge 11. Via the connection electrode portions 213b and 214b (electrodes 213 and 214), the power of the power supply unit 21 can be applied to the heating wire 205 of the heating portion 194. Further, when the bottom portion 196 e of the cartridge 11 abuts on the surrounding convex portion 93, the buffer space S 3 is defined by the cartridge 11 and the connection cap 80.

  Next, the mouthpiece 23 is assembled to the holding unit 22 by the above-described second rotation connecting portion 302. Specifically, the male screw part 160 a of the mouthpiece body 160 is screwed to the female screw part 123 a of the sleeve 123. Then, the first anti-slip member 161 of the mouthpiece 23 comes into contact with the bottom 191 c of the cartridge 11. When the mouthpiece 23 is further tightened in this state, the first anti-slip member 161 is elastically deformed so that the cartridge 11 is held in the holding unit 22 while being pressed toward the power supply unit 21 in the axial direction. Is done. The cartridge 11 is restricted from moving in the circumferential direction with respect to the power supply unit 21 by the vertical engagement convex portions 101a to 101c. For this reason, the cartridge 11 does not rotate around the mouthpiece 23 due to the frictional force acting between the first anti-slip member 161 and the cartridge 11.

Next, the tobacco capsule 12 is inserted into the mouthpiece 23. Specifically, the cigarette capsule 12 is fitted into the mouthpiece body 160 with the mesh opening facing the mouthpiece 23.
Thus, the assembly of the suction device 1 is completed.

  By the way, when the cartridge 11 is inserted, depending on the orientation of the cartridge 11 in the circumferential direction, the circumferential positions of the vertical engagement convex portions 101a to 101c of the power supply unit 21 and the engagement concave portion 210 of the cartridge 11 are different. It may not match. In this case, the bottom portion 196e of the cartridge 11 rides on the vertical engagement convex portions 101a to 101c (hereinafter, simply referred to as “riding state”).

FIG. 20 is an explanatory view showing a state in which the cartridge 11 rides on the vertical engagement convex portion 101.
As shown in FIG. 20, when the cartridge 11 is in the riding-up state, the movement of the cartridge 11 relative to the power supply unit 21 in the axial direction toward the power supply unit 21 is restricted. Therefore, the pin electrode 49 and the connection electrode portions 213b and 214b are separated from each other in the axial direction, and electrical connection between the power supply unit 21 and the cartridge 11 is not ensured. Even if the pin electrode 49 and the connection electrode portions 213b and 214b are in contact with each other in the riding state, the pin electrode 49 and the connection electrode portions 213b and 214b may not be arranged at desired circumferential positions.

FIG. 21 is an explanatory view showing a state in which the mouthpiece 23 is screwed in the state where the cartridge 11 is in the riding state.
As shown in FIG. 21, when the mouthpiece 23 is turned while the cartridge 11 is in the riding state and is screwed to the holding unit 22, as shown in FIG. The member 161 contacts the cartridge 11. Specifically, as shown in FIG. 21, the first anti-slip member 161 is not in contact with the cartridge 11 at the moment when the male screw portion 160a of the mouthpiece 23 is applied to the female screw portion 123a of the holding unit 22. As shown in FIG. 2, when the male threaded portion 160a is screwed into the female threaded portion 123a and is rotated about one or two turns from half rotation, the first anti-slip member 161 comes into contact with the cartridge 11.

FIG. 22 is an explanatory view showing a state in which the mouthpiece 23 and the cartridge 11 rotate together.
As shown in FIG. 22, when the screwing operation of the mouthpiece 23 is continued in a state where the first anti-slip member 161 is in contact with the cartridge 11, the friction acting between the first anti-slip member 161 and the cartridge 11. The mouthpiece 23 and the cartridge 11 rotate together by the force. That is, by the screwing operation of the mouthpiece 23, the cartridge 11 rotates in the circumferential direction (tightening direction (rotating direction M1)) while being pressed against the axial power supply unit 21 side.

  Thereafter, when the circumferential positions of the connection electrode portions 213b and 214b of the cartridge 11 and the vertical engagement convex portions 101a to 101c of the power supply unit 21 coincide with each other, the vertical engagement convex portions 101a to 101c correspond to the corresponding engagement concave portions 210. Enter inside. That is, the cartridge 11 is assembled at a proper position by allowing the cartridge 11 to move in the axial direction with respect to the power supply unit 21. Thereby, the pin electrode 49 and the connection electrode portions 213b and 214b are brought into contact (conducting) in a state where the movement of the cartridge 11 in the circumferential direction with respect to the power supply unit 21 is restricted.

FIG. 23 is an explanatory view showing the mouthpiece 23 tightened to the end.
As shown in FIG. 23, when the axial movement of the cartridge 11 is allowed by the circumferential positioning of the vertical engagement convex portion 101 and the engagement concave portion 210, the mouthpiece 23 can be further screwed. When the mouthpiece 23 is tightened to the end, the connection electrode portions 213b and 214b are pressed against the pin electrode 49, and the first anti-slip member 161 is provided between the cartridge 11 supported by the power supply unit 21 and the mouthpiece body 160. The cartridge 11 is compressed in the axial direction, and the cartridge 11 is positioned in the axial direction. As described above, the screwing of the mouthpiece 23 performs positioning of the cartridge 11 in the circumferential direction and the axial direction, and further, electrical connection between the cartridge 11 and the power supply unit 21 is performed. In addition, the contact protrusion 171 of the first anti-slip member 161 is compressed in the axial direction, so that the gap between the cartridge 11 and the mouthpiece 23 is sealed.
As described above, when the cartridge 11 is assembled at the proper position, the surrounding convex portion 93 of the connection cap 80 is brought into contact with the cartridge 11. For this reason, a buffer space S3 (see FIG. 3) surrounded by the surrounding convex portion 93 is formed between the bottom portion 196e of the heater holder 196 of the cartridge 11 and the connection cap 80.

<Assembly method of cartridge>
Next, a method for assembling the cartridge 11 will be described.
First, the liquid storage chamber 202 of the tank 191 is filled with a liquid aerosol source, and then a gasket 192 and a mesh body 193 are inserted in this order from the opening 191a of the tank 191. At this time, one surface 192 b of the gasket 192 is brought into contact with the end surface 201 a of the convex portion 201 of the tank 191. Further, one surface 193b of the mesh body 193 is overlapped with the other surface 192d of the gasket 192. Thereby, the inside of the tank 191 is correctly partitioned into the liquid storage chamber 202 and the opening chamber 203 by the mesh body 193. Although the mesh body 193 itself is soft, the posture is held by the gasket 192 and positioning is performed.

  Further, the heating unit 194 and the atomizing container 195 are assembled to the heater holder 196 in parallel with the above process. Specifically, first, the heating unit 194 is assembled in the storage recess 220 of the atomization container 195. Subsequently, the atomizing container 195 is inserted into the heater holder 196 with the fitting part 218 side of the atomizing container 195 facing the opening 196 a of the heater holder 196. Then, the fitting portion 218 is fitted to the inner circumferential surface of the peripheral wall 196b in the heater holder 196. At this time, the connecting wall 211 of the heater holder 196 and the slit 225 of the fitting portion 218 are aligned, and the connecting wall 211 is inserted into the slit 225.

Subsequently, the heater holder 196 is assembled to the opening 191 a of the tank 191. Specifically, the heater holder 196 is inserted into the opening 191 a of the tank 191 so that the engagement piece 206 side of the heater holder 196 faces the opening 191 a of the tank 191. At this time, the positions of the engagement holes 198 and the guide recesses 198a formed in the peripheral wall 191b of the tank 191 and the engagement pieces 206 of the heater holder 196 are also aligned.
When the heater holder 196 is inserted into the opening 191a of the tank 191 in this state, the inclined surface 207a formed on the engagement claw 207 of the engagement piece 206 is first brought into contact with the peripheral wall 191b of the tank 191. . By the inclined surface 207a, the engaging claw 207 is smoothly brought into contact with the guide recess 198a of the tank 191.

  Thereafter, when the heater holder 196 is further pushed into the tank 191, the engaging claws 207 are accommodated in the guide recess 198a. Then, the engaging recess 206 is pressed radially inward by the guide recess 198a and elastically deformed. At this time, the engaging piece 206 is smoothly elastically deformed radially inward by the inclined surface 207 a of the engaging claw 207. Here, since the two engaging pieces 206 are disposed opposite to each other with the axis Q interposed therebetween, the radial inward force applied to the two engaging pieces 206 is not easily biased when viewed as a whole of the heater holder 196. For this reason, the force when elastically deforming the engagement piece 206 is balanced, and the heater holder 196 can be easily inserted into the opening 191a of the tank 191. Further, the bottom surface 224 a of the concave portion 224 of the atomization container 195 is in contact with the inner surface of the engagement piece 206 on the radially inner side. For this reason, when the engagement piece 206 is elastically deformed radially inward, the concave portion 224 of the atomization container 195 is slightly deformed radially inward.

  Thereafter, when the heater holder 196 is further pushed in, the engaging claw 207 moves along the guide recess 198a. Thereafter, the engaging claw 207 rides on the end of the guide recess 198a (the end of the tank 191 on the side of the engagement hole 198), and further, the restoring force of the engaging piece 206 and the restoring force of the recess 224 of the atomizing container 195. Thus, the engaging claw 207 is inserted into the engaging hole 198 of the tank 191. Thereby, the heater holder 196 is fixed to the tank 191 and the assembly of the cartridge 11 is completed.

  Here, in a state where the heater holder 196 is fixed to the tank 191, the radially outer surface of the engagement piece 206 is covered by the peripheral wall 191 b of the tank 191. Further, when one of the two engaging claws 207 is to be released, for example, when the tank 191 or the heater holder 196 is inclined so that the engaging claws 207 come out of the engaging hole 198, the other engaging claws 207 is pressed radially outward. For this reason, once engaged, it is difficult to release the engagement hole 198 and the engagement piece 206.

<How to use the suction device>
When using the suction device 1 described above, the user presses the button 78. At this time, for example, by pressing the button 78 a plurality of times (for example, five times), an activation preparation signal is output from the switch element 52 to the control unit mounted on the first substrate module 34.

  Subsequently, the user sucks while holding the mouthpiece 23 or the tobacco capsule 12. Then, the air in the holding unit 22 is sucked, and the inside of the holding unit 22 becomes negative pressure. When the inside of the holding unit 22 becomes negative pressure, the air in the pressure fluctuation chamber S1 is also sucked through the atomizing container 195 (inside the atomizing chamber M) of the cartridge 11, the buffer space S3, and the communication port 51, thereby increasing the pressure. The inside of the variable chamber S1 also becomes negative pressure. Specifically, the air in the pressure fluctuation chamber S <b> 1 flows into the buffer space S <b> 3 through the communication port 51 and then flows into the heater holder 196 through the second intake hole 216. The air that has flowed into the heater holder 196 passes through the passage tube 197 through the air passage 226 and the atomization container 195, and then enters the mouth of the user through the mouthpiece 23. When the pressure sensor 53 detects that the pressure in the pressure fluctuation chamber S1 has become, for example, less than a predetermined value, the pressure sensor 53 outputs an activation signal to the control unit.

  The control unit that has received the start signal energizes the heating unit 194 of the cartridge 11. It should be noted that new air is introduced into the holding unit 22 through the vent 131 by the negative pressure in the holding unit 22. Further, new air is introduced into the atomization chamber M (the opening chamber 203 of the tank 191) of the cartridge 11 through the first intake hole 209 formed in the heater holder 196 of the cartridge 11 and the air passage 226 of the atomization container 195. Is done.

  When the heating unit 194 is energized, the heating wire 205 generates heat. Then, the liquid aerosol source impregnated in the wick 204 via the mesh body 193 is heated and atomized. The atomized aerosol fills the atomization chamber M. The atomized aerosol is sucked up to the mouthpiece 23 side through the flow path pipe 197 of the tank 191 together with new air introduced into the atomization chamber M. Thereafter, the atomized gas mixture of aerosol and air enters the user's mouth through the tobacco capsule 12. Thereby, the user can taste the flavor of tobacco.

<Operation of cartridge>
In the cartridge 11, the liquid aerosol source stored in the liquid storage chamber 202 of the tank 191 is absorbed by the mesh body 193 and further absorbed by the wick 204. When the mesh body 193 and the wick 204 are saturated (exceeding the liquid holding force), the liquid aerosol source is transmitted between the outer peripheral portion of the mesh body 193 and the inner peripheral surface of the peripheral wall 191b of the tank 191 through the inner peripheral surface. May leak to the heater holder 196 side.

Here, a liquid reservoir 223 is formed on the outer peripheral surface of the atomization container 195 located on the heater holder 196 side of the mesh body 193. Therefore, the liquid aerosol source is prevented from being accumulated in the liquid reservoir 223 and leaking to the heater holder 196 side.
Specifically, in the present embodiment, the capacity (space volume) of the liquid reservoir 223 is approximately 53.4 mm 3. Then, the remaining amount of liquid in the liquid storage chamber 202 of the tank 191 is set to 1/3, and the head space volume expansion rate (the volume expansion rate of the air in the remaining 2/3 space portion in the liquid storage chamber 202) is 6%. Assuming that, a liquid aerosol source of about 100 mm 3 is pushed out from the liquid storage chamber 202 due to air expansion in the liquid storage chamber 202 of the tank 191. Of the extruded liquid aerosol source, an aerosol source of about 20 to 30 mm 3 can be held by the mesh body 193 and the wick 204. Of the liquid aerosol source of about 100 mm 3, the remaining 70-80 mm 3 aerosol source is collected in the liquid reservoir 223.

  Here, the liquid reservoir 223 is formed such that the gap between the outer peripheral surface of the cylindrical portion 217 and the peripheral wall 191b of the tank 191 gradually narrows from the seal portion 222 toward the tip of the protruding portion 219. That is, in the vicinity of the protruding portion 219 of the cylindrical portion 217, a narrow portion 279 is formed in which a gap between the protruding portion 219 and the peripheral wall 191b of the tank 191 is narrowed. For this reason, among the aerosol sources of the liquid pushed out from the liquid storage chamber 202 of the tank 191, the remaining aerosol sources after the mesh body 193 and the wick 204 are saturated are easily sucked up by the narrow portion 279 and are actively narrowed. It flows to the liquid reservoir 223 through the part 279.

  That is, the liquid aerosol source stored in the liquid storage chamber 202 of the tank 191 is first absorbed by the mesh body 193 and then absorbed by the wick 204. After the mesh body 193 and the wick 204 are saturated, the liquid aerosol source is sucked into the narrow portion 279 and collected in the liquid reservoir 223.

  On the other hand, when the saturated state of the mesh body 193 is eliminated, the aerosol source of the liquid stored in the liquid reservoir 223 is sucked up through the narrow portion 279 (between the protruding portion 219 and the peripheral wall 191b of the tank 191). The liquid aerosol source is absorbed by the mesh body 193. That is, the aerosol source of the liquid stored in the liquid reservoir 223 is returned to the liquid storage chamber 202 of the tank 191 through the narrow portion 279. At this time, since the narrow portion 279 is covered (closed) by the outer peripheral portion of the mesh body 193, the capillary force by the mesh body 193 also acts and the liquid storage chamber 202 of the tank 191 is efficiently filled with liquid. The aerosol source is refluxed.

  In addition, since the two notches 222 a are formed in the seal portion 222 of the cylinder portion 217, the liquid pool portion 223 and the outside air are connected to the notches 222 a of the seal portion 222 and the engagement holes of the tank 191. 198 and the engagement piece 206 (engagement claw 207) of the heater holder 196 communicate with each other through a gap. As another example, the liquid reservoir 223 and the outside air may be communicated with each other via the notch 222 a of the seal portion 222 and the first intake hole 209 of the heater holder 196. For this reason, a pressure difference does not occur between the inside and outside of the liquid reservoir 223. As a result, the liquid aerosol source is recirculated to the liquid storage chamber 202 of the tank 191 more efficiently while preventing the liquid aerosol source from unintentionally flowing out of the liquid reservoir 223.

[effect]
As described above, in the power supply unit 21 of the present embodiment, the surrounding convex portion 93 surrounding the communication port 51 is formed on the base surface 91 a at a position away from the communication port 51, and the cartridge 11 is connected to the power supply unit 21. In some cases, a buffer space S3 that allows communication between the communication port 51 and the second intake hole 216 is formed.
According to this configuration, since the buffer space S3 is easily formed between the communication port 51 and the second intake hole 216, there is no need to make the ports face each other, and user convenience can be improved. Thereby, for example, after being atomized once, it is possible to prevent the condensed aerosol from flowing directly into the communication port 51 through the second intake hole 216. Thereby, the power supply unit 21 can be protected from the condensed aerosol.

In addition, in the present embodiment, the communication port 51 and the second intake hole 216 communicate with each other through the buffer space S3. Thereby, for example, compared with the conventional configuration in which the ports are brought into contact with each other, the size management when the power supply unit 21 (pressure fluctuation chamber S1) and the inside of the cartridge 11 are communicated is facilitated.
Further, in the present embodiment, the communication port 51 and the second intake hole 216 only need to communicate with each other through the buffer space S3, so that the layout of the communication port 51 and the second intake hole 216 can be improved.

In the power supply unit 21 of the present embodiment, the communication port 51 is arranged at a position overlapping the pressure sensor 53 when viewed from the axial direction.
According to this configuration, the radial and circumferential positions of the pressure sensor 53 and the communication port 51 can be brought closer. Thereby, it is possible to easily generate a negative pressure around the pressure sensor 53 through the communication port 51. As a result, the sensitivity of the pressure sensor 53 can be improved.

In the power supply unit 21 of the present embodiment, the surrounding convex portion 93 is configured to be elastically deformable.
According to this configuration, when the cartridge 11 is connected to the power supply unit 21, the surrounding convex portion 93 is in close contact with the bottom portion 196e in a state of being elastically deformed. Thereby, the sealing performance of the buffer space S3 can be improved, and the sensitivity of the pressure sensor 53 can be improved.

The main body unit 10 of the present embodiment is configured to include a holding unit 22 that is connected to the power supply unit 21 in the axial direction and that accommodates the cartridge 11 when the cartridge 11 is connected to the power supply unit 21.
According to this configuration, the cartridge 11 is stably held in the holding unit 22. Thereby, the connection state of the cartridge 11 and the power supply unit 21 can be stabilized.

In the main body unit 10 of the present embodiment, a mouthpiece 23 is provided on the opposite side of the holding unit 22 from the power supply unit 21, and the cartridge 11 is sandwiched between the mouthpiece 23 and the surrounding convex portion 93. did.
According to this configuration, the cartridge 11 can be pressed against the surrounding convex portion 93 by the mouthpiece 23, and the sealing performance of the buffer space S3 can be improved. Further, since the cartridge 11 is disposed between the power supply unit 21 and the mouthpiece 23, the flow path from the cartridge 11 to the mouthpiece 23 is shortened.

In the main body unit 10 of the present embodiment, the mouthpiece 23 is provided with a suction port 23 a that can accommodate the tobacco capsule 12.
According to this configuration, when the aerosol is sucked through the mouthpiece 23, the aerosol can be added to the aerosol by passing through the tobacco capsule 12.

  Since the aspirator 1 of the present embodiment includes the main body unit 10 described above, the aspirator 1 having excellent reliability can be provided.

In the suction device 1 of the present embodiment, the surface of the bottom portion 196e of the cartridge 11 with which the surrounding convex portion 93 abuts is formed as a flat surface.
According to this configuration, since the buffer space S3 is sealed by the contact between the surrounding convex portion 93 and the flat surface, the cartridge 11 can be simplified.

In the suction device 1 of the present embodiment, the communication port 51 and the second intake hole 216 are arranged at positions shifted from each other in the radial direction.
According to this configuration, since the distance between the communication port 51 and the second intake hole 216 can be secured, even if the condensed aerosol enters the buffer space S3, it can be prevented from flowing into the communication port 51.

(Modification)
Next, a modification of the above-described embodiment will be described. FIG. 24 is a partial cross-sectional view of the aspirator 1 according to a modification. This modification is different from the above-described embodiment in that the surrounding protrusion 500 is formed on the cartridge 11. In the following description, components corresponding to those in the above-described embodiment may be denoted by the same reference numerals and description thereof may be omitted.
As shown in FIG. 24, in the suction device 1 of the present modification, a surrounding convex portion 500 is formed on the bottom portion 196 e of the cartridge 11. The surrounding convex portion 500 protrudes from the bottom portion 196e toward the power supply unit 21 in the axial direction. The surrounding convex portion 500 is formed in an annular shape that follows the outer peripheral portion of the bottom portion 196e in a plan view viewed from the axial direction.

  In a state where the cartridge 11 is mounted in the holding unit 22, the outer peripheral portion of the base surface 91 a of the connection cap 80 approaches or abuts on the surrounding convex portion 500 described above in the axial direction. As a result, the space surrounded by the bottom portion 196e and the connection cap 80 (base surface 91a and surrounding convex portion 500) forms a buffer space S3 that allows the inside of the communication port 51 to communicate with the second intake hole 216. In addition, the part which the surrounding convex part 500 contact | abuts among the base surfaces 91a is formed in the flat surface orthogonal to an axial direction. Of the base surface 91a, the portion with which the surrounding convex portion 500 abuts may be a convex surface, a concave surface, an inclined surface, or the like.

  Also in this modification, the same effect as embodiment mentioned above can be produced.

(Other variations)
As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the appended claims.
For example, in the above-described embodiment, as an example of the aerosol generating device that generates aerosol without combustion, the inhaler 1 in which the tobacco capsule 12 is configured to be detachable has been described as an example. Not limited. As another example of the aerosol generating apparatus, a configuration without the cigarette capsule 12 such as an electronic cigarette may be used. In this case, the aerosol source containing the flavor is accommodated in the cartridge 11, and the aerosol containing the flavor is generated by the aerosol generating device.
In the above-described embodiment, the case where the main unit 10 has the divided configuration of the power supply unit 21, the holding unit 22, and the mouthpiece 23 has been described. However, the configuration is not limited thereto. For example, the power supply unit 21 and the holding unit 22 may be integrally formed, or the holding unit 22 and the mouthpiece 23 may be formed integrally.
In the embodiment described above, the configuration in which the holding unit 22 is formed in a cylindrical shape surrounding the periphery of the cartridge 11 has been described. However, the configuration is not limited thereto. The holding unit 22 may be configured to hold the cartridge 11. In this specification, the attachment and detachment between the cartridge 11 and the main unit 10 (power supply unit 21) is not limited to the case where the cartridge 11 is accommodated in the holding unit 22 and held by the mouthpiece 23, but simply the pin electrode 49. And the connection electrode portions 213b and 214b perform connection and disconnection.

In the above-described embodiment, the configuration in which the power supply unit 21 and the holding unit 22 are formed in a cylindrical shape arranged coaxially has been described. However, the configuration is not limited thereto. The power supply unit 21 and the holding unit 22 may have different shapes.
In the above-described embodiment, the configuration in which the storage battery 33 and the board modules 34 and 35 are mounted on the storage battery holder 36 has been described. However, the configuration is not limited to this configuration. The storage battery 33 and the board modules 34 and 35 may be directly mounted in the housing 31.
In the above-described embodiment, the configuration in which the button 78 (switch element 52) for outputting the activation preparation signal is mounted has been described, but the configuration without the button 78 (configuration activated by detection by the pressure sensor 53). There may be.

  In the above-described embodiment, the configuration in which the pin electrode 49 is arranged at a position that is line-symmetric with respect to the virtual straight line La has been described. However, the configuration is not limited to this configuration. In other words, the pin electrode 49 extends along the in-plane direction (tangential direction) of the base surface 91a, and if the imaginary straight line T1 connecting the two pin electrodes 49 passes through the axis O, the radial direction from the axis O The distances may be different. In this case, the connection electrode portions 213b and 214b have a first virtual circumference C1 passing through the first pin electrode 49a with the axis O as the center and a second virtual circumference C2 passing through the second pin electrode 49b with the axis O as the center. What is necessary is just to be arrange | positioned at least by the circular arc shape in the area | region containing both. Therefore, each pin electrode 49 is not limited to a semicircular shape, but may be a rectangular shape or an oval shape. Further, each pin electrode 49 may have a different shape.

  In the above-described embodiment, the configuration in which the axis O passes through the center of the base surface 91a has been described. However, the configuration is not limited thereto. The axis O may be displaced from the center of the base surface 91a. In the above-described embodiment, the configuration in which the entire power supply unit 21 and the cartridge 11 are arranged on the same axis has been described. However, the configuration is not limited thereto. As long as the first electrode arrangement surface and the second electrode arrangement surface are arranged to face each other, for example, the configuration may be such that the axes of the storage battery 33 and the cartridge 11 of the power supply unit 21 are arranged in parallel.

In the above-described embodiment, the configuration in which the first substrate 60 is arranged with the thickness direction aligned with the radial direction has been described. However, the configuration is not limited thereto. For example, the first substrate 60 may be arranged in a state in which the thickness direction is aligned with the axial direction.
In the above-described embodiment, the pressure sensor 53 has been described as an example of the sensor mounted on the first substrate 60, but various sensors other than the pressure sensor 53 may be mounted. In the above-described embodiment, the configuration in which the negative pressure generated in the housing 31 through the communication port 51 is detected by the pressure sensor 53 has been described. However, the configuration is not limited thereto. The housing 31 only needs to communicate with the inside and outside through the communication port 51.
In the embodiment described above, the configuration in which the inside of the housing 31 is partitioned into the pressure fluctuation chamber S1 and the normal pressure chamber S2 has been described. However, the housing 31 may not be partitioned into the pressure fluctuation chamber S1 and the normal pressure chamber S2.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A cylindrical housing;
A pressure sensor housed in the housing and detecting a pressure change in the housing,
On the first surface facing the axial direction in the housing, a communication port for communicating the inside and outside of the housing is opened,
In the first surface, a non-combustion type is formed at the position away from the communication port in the in-plane direction of the first surface, and protruding from the first surface and surrounding a convex portion surrounding the communication port. A power supply unit for aspirator.

(Appendix 2)
A cylindrical housing in which an aerosol source is accommodated and an atomization unit in which a flow path through which the atomized aerosol flows is formed is connectable in the axial direction;
A pressure sensor housed in the housing and detecting a pressure change in the housing,
Of the housing, a communication port that communicates the inside and the outside of the housing opens on the first surface that the atomizing unit faces when the atomizing unit is connected.
An outer peripheral portion of the first surface is formed with a surrounding convex portion that protrudes from the first surface and surrounds the communication port,
The surrounding convex portion, together with the first surface and the atomizing unit, forms a buffer space that communicates between the communication port and the flow path when the atomizing unit is connected to the housing. Power supply unit.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by the known component, and you may combine each modification mentioned above suitably.

  According to the power supply unit of the non-combustion suction device, the power supply unit can be protected from the condensed aerosol.

Claims (10)

An aerosol source is accommodated and a housing to which an atomization unit in which a flow path through which the atomized aerosol flows is formed is connectable,
Of the housing, a communication port that communicates the inside and the outside of the housing opens on the first surface that the atomizing unit faces when the atomizing unit is connected.
On the first surface, at a position away from the communication port in the in-plane direction of the first surface, a surrounding convex portion is formed that protrudes from the first surface and surrounds the communication port,
The surrounding convex portion forms a buffer space that communicates between the communication port and the flow path together with the first surface and the atomizing unit when the atomizing unit is connected to the housing .
The surrounding convex portion is a power unit of a non-combustion suction device that is formed to be elastically deformable and is in close contact with the atomizing unit when the atomizing unit is connected to the housing . A pressure sensor for detecting a pressure change in the housing is housed in the housing,
The power supply unit for a non-combustion suction device according to claim 1, wherein the communication port is disposed at a position overlapping the pressure sensor when the first surface is viewed from the normal direction. A power supply unit according to any one of claims 1 or claim 2,
A container holding cylinder that is provided at an end portion on the first surface side of the power supply unit and accommodates the atomization unit when the atomization unit is connected to the power supply unit. The main unit of the combustion suction unit. On the side opposite to the power supply unit with respect to the container holding cylinder, a suction port for sucking aerosol generated in the atomization unit through the flow path is provided,
The main body unit of the non-combustion type suction device according to claim 3 , wherein the atomizing unit is configured to be sandwiched between the suction port portion and the surrounding convex portion. At least a part, a non-combustion type aspirator of the main unit according to claim 4, the flavor source container capable of accommodating receiving space is provided in front Symbol mouthpiece portion. A main unit according to any one of claims 3 to 5 ,
A non-combustion type suction device comprising: the atomization unit detachably attached to the main unit. The non-combustion type suction device according to claim 6 , wherein a second surface of the atomizing unit that faces the first surface is formed as a flat surface. The non-combustion type suction device according to claim 7 , wherein an opening portion of the second surface in the flow path is disposed at a position shifted in the in-plane direction with respect to the communication port.   A power supply unit having a housing containing a pressure sensor;
  An atomizing unit that has a container body in which an aerosol source is accommodated and is connectable to the power supply unit;
  On the first surface of the housing, a communication port that communicates the inside and the outside of the housing opens,
  In the container body, an atomized aerosol flows and a flow path is formed that opens on a second surface facing the first surface when connected to the power supply unit,
  The first surface of the housing and the second surface of the container body are in close contact with each other via elastically deformable surrounding convex portions formed on at least one of the atomizing unit and the power supply unit,
  The surrounding convex portion surrounds the communication port at a position away from the communication port in the in-plane direction of the first surface when the atomization unit is connected to the power supply unit, and the first surface and A non-combustion suction device that forms a buffer space that communicates between the communication port and the flow path together with the second surface. A container body configured to be connectable to a power supply unit having a housing in which a pressure sensor is stored, and in which an aerosol source is stored;
A flow path formed in the container body and through which the atomized aerosol flows,
On the first surface of the housing, a communication port that communicates the inside and the outside of the housing opens,
Of the container body, a surrounding convex portion protruding from the second surface is formed on the second surface facing the first surface when connected to the power supply unit,
The surrounding convex portion surrounds the communication port at a position away from the communication port in the in-plane direction of the first surface when the container main body is connected to the power supply unit. A buffer space for communicating between the communication port and the flow path is formed together with the second surface ,
The surrounding convex portion is an atomizing unit of a non-combustion suction device that is formed to be elastically deformable and is in close contact with the power supply unit when the power supply unit is connected to the container body .

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