WO2022016853A1

WO2022016853A1 - Aerosol generating device

Info

Publication number: WO2022016853A1
Application number: PCT/CN2021/074931
Authority: WO
Inventors: 张幸福; 廖焱程; 黄鹏飞
Original assignee: 深圳麦时科技有限公司
Priority date: 2020-07-24
Filing date: 2021-02-02
Publication date: 2022-01-27
Also published as: EP4154740A1; CN111904031A; EP4154740A4; KR20230019860A; JP2023534395A; CN111904031B; JP7528274B2

Abstract

The present invention relates to an aerosol generating device, comprising a main machine, an extractor which can be provided in a manner of being separated from the main machine, and a heating member provided on the main machine. An accommodating space used for accommodating an aerosol generating matrix is formed in the extractor. The heating member comprises a heating portion which is used for being inserted into the aerosol generating matrix in the accommodating space. When the extractor is at a first position, the heating portion is capable of heating the aerosol generating matrix. When the extractor is at a second position, the extractor is separated from the main machine, so that the heating portion is separated from the aerosol generating matrix, thus the aerosol generating matrix can be conveniently and quickly pulled out of the extractor and the aerosol generating matrix is not damaged, thereby avoiding residual substances on the aerosol generating matrix from remaining in the extractor.

Description

aerosol generating device

technical field

The present invention relates to the field of atomization, and more particularly, to an aerosol generating device.

Background technique

Heat-not-burn electronic cigarettes, also known as low-temperature curing cigarettes, are an aerosol generating device that heats smoking materials in a low-temperature heat-not-burn method to form smokeable smoke. At present, heat-not-burn electronic cigarettes usually use a heater such as a heating sheet or a heating rod inserted into the cigarette to heat the cigarette. By controlling the heating temperature, the components in the cigarette are volatilized to generate smoke for people to absorb. When a cigarette is heated for a certain period of time and the amount of smoke it produces reaches the upper limit, the cigarette needs to be pulled out from the smoking set, or stopped smoking, or replaced with a new cigarette to continue smoking. At this time, how to remove the cigarette Easy and quick extraction from the smoking set without damaging the cigarette and leaving no residue on the heater becomes a critical issue. Existing low-temperature smoking sets generally remove the cigarettes from the smoking sets by manually pulling out the cigarettes. Due to the different force of the user, the pulling strength is also very different, and many users often cause the cigarettes to break when pulling out the cigarettes. , Tobacco residue on the heating body and other problems.

technical problem

The technical problem to be solved by the present invention is to provide an improved aerosol generating device in view of the above-mentioned defects of the prior art.

technical solutions

The technical solution adopted by the present invention to solve the technical problem is to construct an aerosol generating device, which includes a main engine, an extractor that can be separated from the main engine, and a heating element disposed on the main engine. an accommodating space for accommodating an aerosol-generating substrate is formed, and the heating member includes a heating portion for inserting the inside of the aerosol-generating substrate into the accommodating space;

Wherein, when the extractor is in the first position, the heating part can heat the aerosol-generating substrate; when the extractor is in the second position, the extractor and the host are separated, so that the heating part Separated from the aerosol-generating matrix.

In some embodiments, when the extractor is in the first position, the extractor is in contact with the host; when the extractor is in the second position, the heating part is at least partially removed from the receiving part. out of space.

In some embodiments, a bottom wall for the aerosol generating substrate to abut against is formed at the bottom of the receiving space, and a socket for inserting the heating part is opened on the bottom wall; In the first position, the heating part can be completely inserted into the accommodation space.

In some embodiments, the shape of the socket corresponds to the shape of the cross-section of the heating portion, and the heating portion is clearance fit in the socket.

In some embodiments, the heating portion is in the shape of a sheet or a rod, and the end of the heating portion is provided with a pointed guide structure that facilitates insertion into the aerosol-generating substrate.

In some embodiments, the extractor includes a first casing in which the receiving space is formed; the host includes a second casing, and the first casing is detachably arranged in a longitudinal direction above the second shell.

In some embodiments, the extractor further includes an extraction pipe longitudinally disposed in the first housing, and an inner wall surface of the extraction pipe defines the receiving space.

In some embodiments, the extractor further includes a first magnet disposed at the bottom of the first housing, and the host further includes a second magnet disposed at the top of the second casing; the extractor and When the host is docked, the first magnet and the second magnet approach and attract each other.

In some embodiments, the upper end of the main body is provided with a cylindrical cover body that covers the outside of the heating part, and the cover body is connected to the inner wall surface of the first casing and the outer wall surface of the extraction pipe respectively. space in between.

In some embodiments, the extraction pipe is integrally formed by extending downward from the top wall of the first casing, or the extraction pipe and the first casing are separately manufactured and the extraction pipe and the first casing are separately manufactured. The top walls of a housing are assembled together.

In some embodiments, the extraction pipe includes a fixed pipe fixed on the first casing and a movable pipe slidably sleeved on the lower end of the fixed pipe in the axial direction, the fixed pipe and the movable pipe The inner wall surfaces of the tubes jointly define the receiving space, and the bottom of the movable tube forms the bottom wall and the socket.

In some embodiments, the lower end of the fixed tube extends outward to form a boss, and the top of the movable tube extends inward to form a flange, and the flange is matched with the boss to connect the The boss is locked under the flange.

In some embodiments, the host includes a socket part, the bottom of the extractor is sheathed outside the socket part, and the axial length of the socket part is less than or equal to the fixed relative to the movable tube Sliding stroke of the tube.

In some embodiments, a first clamping portion is formed on the outside of the upper end of the main body, and the axial height is smaller than the sliding stroke of the movable tube relative to the fixed tube, and the inside of the bottom end of the extractor is formed with The first engaging portions are snap-fitted with each other and are second engaging portions.

In some embodiments, the host includes a base embedded in the top of the second housing, a socket extending upward from a top wall of the base, and a cover extending upward from the top wall of the socket The outer wall surface of the socket part forms the first clamping part, and the cover body is covered outside the heating part and is respectively connected with the inner wall surface of the first casing and the outer surface of the extraction pipe. There is a space between the walls;

The extractor further includes a first magnet embedded in the bottom of the first housing, the first magnet forms the second clamping portion, and a second magnet is provided in the host corresponding to the first magnet. magnet.

In some embodiments, after the extractor is docked with the host, the lower end surface of the movable tube abuts against the top wall of the socket part, and the lower end surface of the fixed tube abuts against the bottom on the wall.

In some embodiments, the host further includes a base assembly embedded in the top of the second housing and the heating element inserted on the base assembly, and the upper end of the heating element forms the heating section.

In some embodiments, an airflow channel surrounding the heating element and communicating with the receiving space is formed in the base assembly, and the first casing and/or the second casing are provided with At least one air intake hole communicated with the air flow channel.

beneficial effect

The implementation of the present invention has at least the following beneficial effects: after the extractor and the host are connected, the heating part can heat the aerosol-generating matrix; after the heating is completed, the extractor and the host can be separated, so that the heating part is separated from the aerosol-generating matrix, thereby The aerosol-generating substrate can be easily and quickly pulled out of the extractor without damaging the aerosol-generating substrate, and preventing the medium on the aerosol-generating substrate from remaining in the aerosol-generating device.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor is in the first position according to the first embodiment of the present invention;

2 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor in FIG. 1 is in a second position;

3 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor is in the first position according to the second embodiment of the present invention;

4 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor in FIG. 3 is in a second position;

5 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor is in the first position according to the third embodiment of the present invention;

6 is a schematic cross-sectional structure diagram of the aerosol generating device when the boss and the flange are in contact with each other in FIG. 5;

7 is a schematic cross-sectional structure diagram of the aerosol generating device when the extractor in FIG. 5 is in a second position;

FIG. 8 is a schematic cross-sectional structure diagram of the aerosol generating device shown in FIG. 5 in another direction.

Embodiments of the present invention

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1-2 shows the aerosol generating device in the first embodiment of the present invention, which can be roughly cylindrical and includes an extractor 1, a main body 2 detachably disposed on the extractor 1 along the longitudinal direction, and a main body 2 disposed on the main body 2 on the heating element 22. The aerosol-generating device can heat the aerosol-generating substrate 3 in a low-temperature heating-not-combustion manner to form smoke that can be inhaled by a user. It can be understood that the aerosol generating device is not limited to be in a cylindrical shape, and it can also be in other shapes such as a square column. In this embodiment, the aerosol generating substrate 3 may be a cigarette.

In some embodiments, the extractor 1 may include a first casing 11 and a first magnet 13 which is annular and tightly embedded in the bottom of the first casing 11 . The inner wall surface of the first housing 11 defines an accommodation space 110 for accommodating the aerosol generating substrate 3. The top of the accommodation space 110 is open, and a bottom wall 112 is formed at the bottom of the accommodation space 110. The socket 111 into which the heating element 22 is inserted. The aerosol-generating substrate 3 can be inserted into the receiving space 110 from the opening at the top of the receiving space 110 and abut against the bottom wall 112 .

In some embodiments, the host 2 may include a second casing 21 , a heating element 22 , a seat 24 and a second magnet 23 . The second housing 21 may be provided with electronic components such as a battery and a circuit board, which are used to supply power to the heating element 22 and control operations such as turning on or off the entire aerosol generating device.

The seat body 24 can be embedded in the upper end of the second casing 21 in the longitudinal direction, and includes a cylindrical side wall 2411 and a circular plate-shaped top wall 2412 integrally combined with the top of the side wall 2411 . A clamping table 2413 is formed on both sides of the side wall 2411 in the circumferential direction, respectively protruding outward. The inner wall surface of the second housing 21 is recessed to form a clamping groove 211 corresponding to the clamping table 2413. The clamping table 2413 and the clamping groove 211 are mutually buckled. Therefore, the seat body 24 is fastened and fixed in the second casing 21 . The seat body 24 and the second shell 21 are fixed by means of plugging and inner buckle connection, which is convenient and reliable, and makes the outside of the host 2 not exposed without buckles, which is more beautiful. The second magnet 23 is annular, and can be tightly embedded in the side wall 2411 and abut against the lower end surface of the base body 24 . The first magnet 13 and the second magnet 23 may be magnets that attract each other, or may be other magnetic elements (eg, iron cobalt nickel).

The heating element 22 is longitudinally embedded on the top wall 2412 , and may include a heating portion 221 extending into the receiving space 110 for heating the aerosol-generating substrate 3 . The heating part 221 can extend into the receiving space 110 from the socket 111 at the bottom of the receiving space 110 and be inserted into the aerosol generating substrate 3 to bake and heat the aerosol generating substrate 3 . The heating element 22 can be in the shape of a sheet or a rod, and the upper end of the heating element 22 can be provided with a pointed guide structure, which is convenient for being inserted into the aerosol generating substrate 3 . The shape of the socket 111 may correspond to the shape of the cross-section of the heating part 221 , and the cross-sectional dimension of the socket 111 may be slightly larger than that of the heating part 221 , so that the heating part 221 and the socket 111 are clearance fit to facilitate the heating part 221 When the heating part 221 is inserted and withdrawn, and the heating part 221 can be separated from the aerosol generating substrate 3 , the bottom wall 112 can scrape off the residual substances on the heating part 221 by friction, such as the heated gas adhering to the heating part 221. The sol is formed into a matrix, and the heating part 221 is cleaned. In this embodiment, the heating element 22 is in the shape of a sheet, and the socket 111 is a rectangle whose cross-sectional dimension is slightly larger than that of the heating portion 221 . It can be understood that, in other embodiments, the heating element 22 can also be disposed on the host 2 in a detachable and detachable manner.

The extractor 1 has a first position docked with the host 2 and a second position separated from the host 2 . When the extractor 1 and the host 2 are docked, the first housing 11 and the second housing 21 are butted against each other and abut together, the first magnet 13 at the bottom of the first housing 11 and the second housing 21 at the top The magnets 23 are close to each other and attract each other. The extractor 1 and the host 2 are fixed to each other by the suction force between the first magnet 13 and the second magnet 23. Extend into the receiving space 110 . The aerosol generating substrate 3 is loaded from the top of the extractor 1, and the battery in the host 2 supplies power to the heating element 22. in the first position of the docking).

When the aerosol-generating substrate 3 is heated, by pulling the extractor 1 upward, the first magnet 13 is separated from the second magnet 23, and the extractor 1 and the host 2 are immediately separated (at this time, the extractor 1 and the host 2 are separated The second position), at this time, there is no connection between the extractor 1 and the host 2, and the extractor 1 drives the aerosol-generating substrate 3 to move upward through the bottom wall 112 of the accommodation space 110, so that the heating part 221 generates the aerosol from the aerosol-generating substrate 3. At the same time, the residual substances adhered to the outside of the heating part 221 are scraped through the bottom wall 112 .

3-4 show the aerosol generating device in the second embodiment of the present invention. The main difference between this embodiment and the first embodiment is that, in this embodiment, the top wall of the first housing 11 extends downward. A circular tubular extraction pipe 12 is formed, and the inner side wall of the extraction pipe 12 defines a receiving space 110 for receiving the aerosol generating substrate 3 . In addition, in this embodiment, the base body 24 may include a base portion 241 embedded in the second housing 21 and a cylindrical cover body 243 formed by extending upward from the top wall 2412 of the base portion 241 . The cover body 243 is disposed outside the heating element 22 to prevent the heating element 22 from being pressed and damaged due to the lateral movement of the first casing 11 when the extractor 1 and the host 2 are docked. The cover body 243 is disposed between the first casing 11 and the extraction pipe 12 , and has a space between the inner wall surface of the first casing 11 and the outer wall surface of the extraction pipe 12 , respectively. In some embodiments, the distance between the cover body 243 and the inner wall surface of the first housing 11 and the outer wall surface of the extraction pipe 12 may be respectively 0.5-5 mm, preferably 3-5 mm.

5-7 show the aerosol generating device in the third embodiment of the present invention. The main difference between this embodiment and the second embodiment is that, in this embodiment, the extraction pipes 12 are sleeved with each other and can be along the axis. The fixed tube 121 and the movable tube 122 sliding toward each other, and the inner wall surfaces of the fixed tube 121 and the movable tube 122 together define a receiving space 110 for receiving the aerosol generating substrate 3 .

Specifically, in this embodiment, the upper end of the fixing tube 121 is tightly embedded on the top wall of the first housing 11 and can be fixed on the first housing 11 by means of screw connection, snap connection, or the like. The movable tube 122 is sleeved outside the lower end of the fixed tube 121 so as to slide up and down in the axial direction, and the bottom wall of the movable tube 122 forms the bottom wall 112 of the accommodating space 110 . The top of the movable tube 122 extends inward to form a flange 1221, and the outer ring of the lower end of the fixed tube 121 extends outward to form a boss 1211. The flange 1221 and the boss 1211 cooperate to avoid the fixed tube 121 and the movable tube 122 disengage as they slide against each other. In some embodiments, the slidable stroke of the movable tube 122 relative to the fixed tube 121 is 2.5-5.5 mm, for example, about 4.5 mm.

A first clamping portion may be formed on the outside of the upper end of the host 2, and a second clamping portion is formed inside the bottom end of the extractor 1 to engage with the first clamping portion. The axial direction of the first clamping portion is The length is less than or equal to the sliding stroke of the movable tube 122 relative to the fixed tube 121 . Specifically, in this embodiment, the base body 24 may include a base portion 241 embedded in the second housing 21 , a socket portion 242 formed by extending upward from a top wall of the base portion 241 , and a top wall of the socket portion 242 . For the cover body 243 formed by extending upward, the inner diameter and the outer diameter of the base portion 241 , the socket portion 242 , and the cover body 243 decrease in sequence. The outer wall surface of the socket part 242 forms the first clamping part, and the first magnet 13 forms the second clamping part. After the extractor 1 and the host 2 are assembled, the first magnet 13 is tightly socketed outside the socket part 242, Thus, the stability of the combination between the extractor 1 and the host 2 can be improved. The axial length of the socket portion 242 is smaller than the sliding stroke of the movable tube 122 relative to the fixed tube 121 . In some embodiments, the axial length of the socket portion 242 may be 1 to 2.5 mm, preferably about 2 mm. In other embodiments, the first magnet 13 and the second magnet 23 may not be provided between the extractor 1 and the host 2, and the connection between the extractor 1 and the host 2 may be formed by socketing the two. The bottom of a housing 11 is directly sleeved outside the sleeve portion 242 , and at this time, the second engaging portion can be formed by extending inward from the inner wall of the bottom end of the first housing 11 .

The socket part 242 is provided with a through hole 2421 through which the heating part 221 can pass, and the heating part 221 can be inserted into the aerosol generating substrate 3 upward through the through hole 2421 and the socket 111 in sequence. In this embodiment, the cross-sectional shape and size of the perforation 2421 are consistent with the cross-sectional shape and size of the socket 111. When the heating part 221 is separated from the aerosol-generating substrate 3, the hole wall of the perforation 2421 can also be scraped off by friction. Residual substances on the heating part 221 . In other embodiments, the cross-sectional size of the through hole 2421 may also be larger than the cross-sectional size of the socket 111 . In other embodiments, the cross-sectional shape of the through hole 2421 may also be different from the cross-sectional shape of the socket 111 .

Taking the sliding stroke of the movable tube 122 relative to the fixed tube 121 as 4.5 mm and the axial length of the socket portion 242 as 2 mm as an example, as shown in FIG. 5 , when the extractor 1 is in the first position, the extractor 1 and the host 2 are butted against each other, at this time, the first magnet 13 of the extractor 1 is sleeved outside the sleeve part 242 of the host 2 and attracts the second magnet 23, and the lower end surface of the movable tube 122 abuts against the top of the sleeve part 242 On the wall, the lower end face of the fixed tube 121 abuts on the bottom wall 112 of the movable tube 122, the aerosol generating substrate 3 is loaded from the top of the fixed tube 121 to the bottom wall 112 against the movable tube 122, the heating element 22 The heating part 221 extends from the socket 111 at the bottom of the movable tube 122 and is inserted into the aerosol-generating substrate 3 to bake and heat the aerosol-generating substrate 3 after being electrified and heated.

After the aerosol-generating substrate 3 is heated, the first housing 11 is first pulled upward, and the first housing 11 drives the fixing tube 121 and the first magnet 13 to move upward. When the upward displacement exceeds 2 mm, the first magnet 13 and the first magnet 13 move upward. The socket part 242 is separated, so that the extractor 1 is separated from the host 2. At this time, since the boss 1211 on the fixed tube 121 has not moved up to contact the flange 1221 on the movable tube 122, the movable tube 122, aerosol The substrate 3 and the heating element 22 remain relatively stationary; as shown in FIG. 6 , continue to pull the first housing 11 upward until the displacement reaches 4.5 mm, the boss 1211 moves upward to abut on the flange 1221, and at this time, continue to Pull the first shell 11, the fixed tube 121 will drive the movable tube 122 to move upward together, and then drive the aerosol generating substrate 3 to move upward through the bottom wall 112 of the movable tube 122; then, continue to pull the first shell 11 upward, so that the gas The sol-generating substrate 3 is separated from the heating part 221 , as shown in FIG. 7 , and at the same time, the bottom wall 112 can scrape the residual substances adhered outside the heating part 221 .

As shown in FIG. 8 , in this embodiment, the aerosol generating device may further include an inner seat 25 embedded in the seat body 24 , and the inner seat 25 and the seat body 24 are jointly formed for inserting and supporting the heating element 22 Base assembly for extractor 1. The second magnet 23 can be tightly embedded in the inner seat 25 , and the first magnet 13 is sleeved outside the socket portion 242 and forms a ventilation gap 130 with the top surface of the base portion 241 . An air flow channel 240 surrounding the heating element 22 is formed between the upper end surface of the inner seat 25 and the lower end surface of the socket part 242 , and two opposite sides of the bottom side wall of the socket part 242 are respectively provided with a channel 240 communicating with the air flow channel 240 . Vent 2420. Two opposite sides of the bottom of the side wall of the first housing 11 are respectively formed with an air inlet 120, and external air can enter the air passage 240 through the air inlet 120, the ventilation gap 130, and the ventilation hole 2420 in sequence to cool the base assembly. Then, the air with heat is brought into the aerosol generating matrix 3 in the receiving space 110 through the perforation 2421 and the socket 111 in turn. The preheated air can also improve the atomization efficiency, and can also make the aerosol generating matrix 3 The temperature distribution is more uniform.

It can be understood that, in other embodiments, the air inlet hole 120 can also be opened on the side wall or the bottom wall of the second housing 21 . The ventilation gap 130 may not be formed between the bottom surface of the first magnet 13 and the top surface of the base 241 , as long as the air flow can flow through the surface of the base assembly to cool the base assembly, for example, the air intake hole 120 can also be opened It is placed on the second housing 21 between the seat body 24 and the inner seat 25 , and then enters the airflow channel 240 through the gap between the seat body 24 and the inner seat 25 . The airflow channel 240 may not surround the heating element 22 , for example, the air inlet hole 120 may also be opened at the bottom of the second housing 21 , and the airflow channel 240 extends longitudinally and is parallel to the longitudinal direction of the heating element 22 .

It can be understood that the above technical features can be used in any combination without limitation.

The above examples only represent the preferred embodiments of the present invention, and their descriptions are more specific and detailed, but they should not be construed as limitations on the scope of the present invention; it should be pointed out that for those of ordinary skill in the art, Under the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can also be made, and these all belong to the protection scope of the present invention; therefore, all equivalent transformations made with the scope of the claims of the present invention All modifications and modifications shall fall within the scope of the claims of the present invention.

Claims

An aerosol generating device, characterized in that it comprises a host (2), an extractor (1) detachably provided from the host (2), and a heating element (22) arranged on the host (2), An accommodating space (110) for accommodating an aerosol-generating substrate (3) is formed in the extractor (1), and the heating element (22) includes the gas for being inserted into the accommodating space (110). a heating part (221) inside the sol-generating substrate (3);

Wherein, when the extractor (1) is in the first position, the heating part (221) can heat the aerosol-generating substrate (3); when the extractor (1) is in the second position, the extraction The device (1) is separated from the host (2), so that the heating part (221) is separated from the aerosol-generating substrate (3).
The aerosol generating device according to claim 1, characterized in that, when the extractor (1) is in the first position, the extractor (1) is in contact with the host (2); the extraction When the device (1) is in the second position, the heating part (221) at least partially escapes from the receiving space (110).
The aerosol generating device according to claim 1 or 2, characterized in that, a bottom wall (112) for the aerosol generating substrate (3) to abut against is formed at the bottom of the receiving space (110). The bottom wall (112) is provided with a socket (111) for inserting the heating part (221); when the extractor (1) is in the first position, the heating part (221) can be completely inserted into the receiving space (110).
The aerosol generating device according to claim 3, wherein the shape of the socket (111) corresponds to the shape of the cross-section of the heating part (221), and the heating part (221) is clearance-fitted with in the socket (111).
The aerosol generating device according to claim 1, 2 or 4, characterized in that, the heating part (221) is in the shape of a sheet or a rod, and an end of the heating part (221) is provided with a device to facilitate insertion into the heating part (221). The aerosol-generating matrix (3) has a pointed guide structure.
The aerosol generating device according to claim 3, characterized in that, the extractor (1) comprises a first casing (11), and the accommodation space (110) is formed in the first casing (11). ); the host (2) includes a second casing (21), and the first casing (11) is detachably disposed above the second casing (21) in the longitudinal direction.
The aerosol generating device according to claim 6, characterized in that, the extractor (1) further comprises an extraction pipe (12) longitudinally arranged in the first housing (11), the extraction pipe The inner wall surface of (12) defines the receiving space (110).
The aerosol generating device according to claim 7, characterized in that, the extractor (1) further comprises a first magnet (13) arranged at the bottom of the first housing (11), the main body (2) ) further comprises a second magnet (23) arranged on the top of the second housing (21); when the extractor (1) and the host (2) are docked, the first magnet (13) is connected to the The second magnets (23) are close to each other and attract each other.
The aerosol generating device according to claim 8, characterized in that, a cylindrical cover body (243) covering the outside of the heating part (221) is provided at the upper end of the main body (2), the cover body (243) are spaced apart from the inner wall surface of the first casing (11) and the outer wall surface of the extraction pipe (12).
The aerosol generating device according to claim 7, characterized in that, the extraction pipe (12) is integrally formed by extending downward from the top wall of the first housing (11), or the extraction pipe (12) Manufactured separately from the first housing (11) and the extraction pipe (12) is assembled with the top wall of the first housing (11).
The aerosol generating device according to claim 7, wherein the extraction pipe (12) comprises a fixed pipe (121) fixed on the first housing (11) and a sleeve slidably along the axial direction The movable tube (122) connected to the lower end of the fixed tube (121), the inner wall surface of the fixed tube (121) and the movable tube (122) together define the accommodation space (110), the movable tube The bottom of (122) forms the bottom wall (112) and the socket (111).
The aerosol generating device according to claim 11, characterized in that a boss (1211) is formed at the lower end of the fixed tube (121) to extend outward, and a top of the movable tube (122) is formed to extend inwardly to form a boss (1211). A flange (1221), the flange (1221) is matched with the boss (1211) to lock the boss (1211) under the flange (1221).
The aerosol generating device according to claim 11, wherein the host (2) comprises a socket (242), and the bottom of the extractor (1) is socketed on the socket (242) In addition, the axial length of the socket portion (242) is less than or equal to the sliding stroke of the movable tube (122) relative to the fixed tube (121).
The aerosol generating device according to claim 11, wherein an axial height smaller than the sliding stroke of the movable tube (122) relative to the fixed tube (121) is formed outside the upper end of the main body (2). The first clamping part of the extractor (1) is internally formed with a second clamping part which is mutually engaged with the first clamping part.
The aerosol generating device according to claim 14, characterized in that, the host (2) comprises a base (241) embedded in the top of the second housing (21), and a A socket portion (242) extending upward from the top wall and a cover body (243) extending upward from the top wall of the socket portion (242), the outer wall surface of the socket portion (242) forming the first clip A connecting part, the cover body (243) is covered outside the heating part (221) and has a space between the inner wall surface of the first casing (11) and the outer wall surface of the extraction pipe (12), respectively. interval;

The extractor (1) further comprises a first magnet (13) embedded in the bottom of the first casing (11), the first magnet (13) forms the second clamping part, and the host (2) A second magnet (23) is provided in the interior corresponding to the first magnet (13).
The aerosol generating device according to claim 13, characterized in that, after the extractor (1) and the host (2) are docked, the lower end surface of the movable tube (122) abuts against the socket On the top wall of the part (242), the lower end surface of the fixing tube (121) abuts on the bottom wall (112).
The aerosol generating device according to any one of claims 6-15, characterized in that, the host (2) further comprises a base component embedded in the top of the second housing (21), and a base component inserted in the top of the second housing (21) The heating element (22) on the base assembly, the upper end of the heating element (22) forms the heating portion (221).
The aerosol generating device according to claim 17, characterized in that, an airflow channel (240) surrounding the heating element (22) and communicating with the receiving space (110) is formed in the base assembly, At least one air intake hole (120) communicated with the airflow channel (240) is formed on the first casing (11) and/or the second casing (21).