WO2022267850A1

WO2022267850A1 - Aerosol generating device

Info

Publication number: WO2022267850A1
Application number: PCT/CN2022/096669
Authority: WO
Inventors: 袁永宝
Original assignee: 深圳麦时科技有限公司
Priority date: 2021-06-24
Filing date: 2022-06-01
Publication date: 2022-12-29
Also published as: EP4353096A1; KR20240042409A; CN113508926A

Abstract

An aerosol generating device, comprising a fixed tube (11) for mounting an aerosol-forming substrate (200) and capable of forming an airflow channel (20). The fixed tube (11) comprises a support wall (114) and a first opening (112) corresponding to the support wall (114) and into which the aerosol-forming substrate (200) is inserted; the airflow channel (20) extends from the first opening (112) to the outside of the fixed tube (11) in a direction from the inner side of the tube wall of the fixed tube (11) to the support wall (114), then passes into the fixed tube (11) from the support wall (114) and extends in a direction toward the first opening (112), so that an airflow can enter the aerosol-forming substrate (200) from the support wall (114) and send aerosol generated by the aerosol-forming substrate (200) out. The airflow channel (20) of the aerosol generating device may cool the outer surface of the fixed tube (11), and the airflow channel (20) has the advantages of uniform airflow and sufficient airflow.

Description

Aerosol generating device

technical field

The present invention relates to a heat-not-burn atomizing device, and more particularly, to an aerosol generating device.

Background technique

The air channel of the aerosol generating device in the related art is generally formed inside the housing for containing the aerosol, and the air channel can only allow gas to enter the aerosol forming substrate during use.

technical problem

The air channel in the aerosol generating device in the related art can only supply gas to enter the aerosol forming matrix, but cannot cool down the outer surface of the outer cover, and the air flow in the air channel is usually uneven and sufficient.

technical solution

The technical problem to be solved by the present invention is to provide an improved aerosol generating device.

The technical solution adopted by the present invention to solve the technical problem is: to construct an aerosol generating device, including a fixed tube for the aerosol forming substrate to be installed and to form an airflow channel;

The fixed tube includes a support wall and a first opening corresponding to the support wall for the aerosol-forming substrate to be loaded into;

The air flow channel first extends from the first opening along the inner side of the tube wall of the fixed tube toward the direction of the support wall to the outside of the fixed tube, and then penetrates into the fixed tube from the support wall and Extending toward the first opening, the gas flow enters the aerosol-forming substrate from the supporting wall to send out the aerosol generated by the aerosol-forming substrate.

In some embodiments, the air flow channel includes a first air intake channel; the first air intake channel is formed in the fixed pipe, communicates with the first opening and the outside, and passes through the first opening extending toward the supporting wall.

In some embodiments, the airflow channel includes a second air intake channel; the second air intake channel is formed outside the support wall and communicates with the first air intake channel and the aerosol-forming substrate.

In some embodiments, the airflow passage comprises a second intake passage;

The fixing pipe includes a second opening corresponding to the first opening; the support wall is arranged between the first opening and the second opening;

The second air intake channel is formed between the support wall and the second opening, and communicates with the first air intake channel and the aerosol-forming substrate.

In some embodiments, an air intake groove is provided on a side of the support wall opposite to the second opening; the second air intake channel is formed in the air intake groove.

In some embodiments, a channel opening communicating with the first intake channel and the second intake channel is opened on the wall of the intake channel.

In some embodiments, the airflow passage includes a communication passage communicating with the first intake passage;

The communication channel is arranged on the pipe wall of the fixed pipe.

In some embodiments, a through hole is opened on the tube wall of the fixed tube; the communication channel is formed in the through hole.

In some embodiments, the distance from the through hole to the support wall is smaller than the distance from the through hole to the first opening;

Alternatively, the distance from the through hole to the supporting wall is greater than or equal to the distance from the through hole to the first opening.

In some embodiments, the supporting wall is provided with perforations for allowing external air to enter the aerosol-forming substrate.

In some embodiments, the fixation tube comprises a tubular body;

The tubular body is provided with a limiting structure for limiting the aerosol-forming substrate;

And/or, the interior of the tubular body forms an insertion channel for the insertion of the aerosol-forming substrate; the cross-section of the insertion channel is circular, and the radial dimension of the insertion channel is in the shape of a cross-section The outer diameter of said aerosol-forming substrate being circular is comparable.

In some embodiments, the limiting structure includes a limiting rib protruding from the tube wall of the tubular body.

In some embodiments, there are a plurality of limiting ribs, and the plurality of limiting ribs are arranged at intervals along the circumferential direction of the tubular body.

In some embodiments, the fixing tube includes a tubular body, and an insertion channel for inserting the aerosol-forming substrate is formed inside the tubular body; the cross-section of the insertion channel is elliptical, and the insertion channel is oval. The major axis of the channel is larger than the outer diameter of the aerosol-forming substrate with a circular cross-section, and the minor axis of the inserted channel is equivalent to the outer diameter of the aerosol-forming substrate with a circular cross-section.

In some embodiments, the aerosol generating device further includes a cover sleeved on the periphery of the fixed tube;

The outer cover is a hollow structure with both ends penetrated.

In some embodiments, the length of the fixing tube is greater than that of the outer cover, and the two ends of the fixing tube pass through the two ends of the outer cover.

In some embodiments, through holes are opened on the tube wall of the fixed tube;

The outer cover is provided with ventilation holes corresponding to the through holes.

In some embodiments, the aerosol-generating device further includes a heating element;

The fixed pipe also includes a second opening opposite to the first opening;

The heating assembly includes a heating element; the heating element is inserted into the aerosol-forming base through the supporting wall from the second opening.

In some embodiments, the supporting wall is provided with a perforation, and the heating element is inserted into the aerosol-forming substrate through the perforation;

A gap is left between the perforation and the heating element to allow external air to enter the aerosol-forming substrate.

In some embodiments, the heating element is in the form of a sheet, and the perforations are strip-shaped holes;

The length of the perforation is greater than the width of the heating element; or the width of the perforation is greater than the thickness of the heating element.

In some embodiments, a power supply component electrically connected to the heating component is also included.

Implementing the aerosol generating device of the present invention has the following beneficial effects: the air flow channel of the aerosol generating device can extend from the first opening of the fixed tube along the inner side of the tube wall of the fixed tube to the direction of the support wall to the end of the fixed tube. Outside, put the support wall into the fixed tube and extend from the direction of the first opening to supply the air flow from the support wall into the aerosol-forming substrate to send out the aerosol generated by the aerosol-forming substrate. The airflow channel can cool down the temperature of the outer surface of the fixed pipe, and the airflow channel has the advantages of uniform and sufficient airflow.

Beneficial effect

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic structural view of an aerosol generating device in the first embodiment of the present invention;

Fig. 2 is a sectional view of the aerosol generating device shown in Fig. 1;

Fig. 3 is a schematic exploded view of the local structure of the aerosol generating device shown in Fig. 1;

Fig. 4 is a partial structural sectional view of the aerosol generating device shown in Fig. 1;

Fig. 5 is an exploded schematic diagram of a partial structure of the aerosol generating device shown in Fig. 4;

Fig. 6 is a schematic structural view of the fixed tube of the aerosol generating device shown in Fig. 5;

Fig. 7 is a structural schematic diagram of another angle of the fixed tube of the aerosol generating device shown in Fig. 6;

Fig. 8 is a schematic structural view of the intake slot of the fixed pipe of the aerosol generating device shown in Fig. 6;

Fig. 9 is a schematic structural view of the outer cover of the aerosol generating device shown in Fig. 6;

Fig. 10 is a schematic structural view of the upper cover of the aerosol generating device shown in Fig. 6;

Fig. 11 is a partial structural sectional view of the aerosol generating device in the second embodiment of the present invention;

Fig. 12 is a schematic structural view of the fixing tube of the aerosol generating device in the third embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

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

It should be understood that terms such as "upper", "lower", "first", and "second" are only for the convenience of describing the technical solution of the present invention, rather than indicating that the referred devices or elements must have special differences, Therefore, it should not be construed as limiting the invention. It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or intervening elements may also exist. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

1 and 2 show the first embodiment of the aerosol generating device of the present invention. The aerosol generating device 100 can heat the aerosol-forming substrate 200 by means of low-temperature heating without burning. In this embodiment, the aerosol-forming substrate 200 can be cylindrical. Specifically, the aerosol-forming substrate 200 can be a leaf of a plant. Or/and a thread-like or sheet-like fixing material made of stems, and aroma components can be further added to the fixing material.

As shown in FIGS. 3 to 5 , the aerosol generating device 100 may include a housing component 10 . The containing component 10 is used for containing the aerosol forming substrate 200 . In some embodiments, the receiving assembly 10 includes a fixing tube 11 , an outer cover 12 and an upper cover 13 . The fixing tube 11 is disposed in the upper cover 13 for installation of the aerosol forming base 200 and can form an air flow channel 20 . The outer cover 12 is sheathed on the outer periphery of the fixing tube 11 for connecting and fixing the fixing tube 11 and the upper cover 13 . The upper cover 13 is sleeved on the periphery of the outer cover 12 .

As shown in FIGS. 6 to 8 , further, in this embodiment, the fixing tube 11 is a hollow structure for inserting the aerosol-forming substrate 200 . In some embodiments, the length of the fixing tube 11 may be greater than that of the outer cover 12 , and the two ends of the fixing tube 11 may pass through the two ends of the outer cover 12 . Of course, it can be understood that in some other embodiments, the length of the fixing tube 11 is not limited to be longer than the length of the outer cover 12 .

Further, in this embodiment, the fixing tube 11 includes a tubular body 111 , a first opening 112 , a second opening 113 and a supporting wall 114 . The tubular body 111 can be roughly cylindrical, and its inner side is a hollow structure, and an insertion channel 1110 for inserting the aerosol-forming substrate 200 is formed on the inner side. The insertion channel 1110 can be roughly circular, and its radial dimension can be compared with the The outer diameters of the aerosol-forming substrates 200 are approximately equal. The first opening 112 is disposed at one end of the tubular body 111 and communicates with the tubular body 111 for allowing the aerosol-forming substrate 200 to be loaded into the tubular body 111 . The second opening 113 is disposed at the other end of the tubular body 111 , opposite to the first opening 112 , specifically axially symmetrical with the first opening 112 , and can communicate with the tubular body 111 . The support wall 114 is disposed in the tubular body 111 between the first opening 112 and the second opening 113 , the support wall 114 is substantially circular, and is coaxial with the first opening 112 and the second opening 113 Set, the distance from the support wall 114 to the first opening 112 is greater than the distance from the support wall 114 to the second opening 113 . The aerosol-forming substrate 200 can be inserted into the base body 111 from the first opening 112 toward the supporting wall 114 , and can be withdrawn from the first opening 112 .

Further, in this embodiment, a through hole 115 is opened on the tube wall of the fixed tube 11, and the through hole 115 is located on the tubular body 111 and between the supporting wall 114 and the first opening 112, and the through hole 115 It is used to communicate with the inner and outer sides of the fixed pipe 11 to allow the gas inside the fixed pipe 11 to flow out of the fixed pipe. In some embodiments, the through hole 115 is disposed close to the support wall 114, that is, the distance from the through hole 115 to the first opening 112 is greater than the distance to the support wall 114, and is located at the side of the support wall 114 opposite to the second opening 113. On one side, in some embodiments, specifically, the through hole 115 can be against the support wall 114, and the distance between the through hole 115 and the support wall 114 can be substantially zero, so that the through hole 115 The distance to the second airflow channel 22 is shortened, thereby increasing the airflow rate. Of course, it can be understood that in some other embodiments, the through hole 115 may also be disposed close to the first opening 112 , and the distance from the first opening 112 may be less than or equal to the distance from the supporting wall 114 . In some embodiments, the through hole 115 may be a square hole. Of course, it can be understood that in some other embodiments, the through hole 115 is not limited to being a square hole, and may be a round hole. In some embodiments, there may be two through holes 115 , and the two through holes 115 may be arranged symmetrically along the radial direction of the fixing tube 11 . Of course, it can be understood that in some other embodiments, the number of through holes 115 is not limited to two, and may be one or more than two.

In this embodiment, the side of the supporting wall 114 opposite to the second opening 113 is provided with an air inlet groove 116, and the air inlet groove 116 can be formed by surrounding the pipe wall at one end of the tubular body 111 and the supporting wall 114, It communicates with the second opening 113, and can communicate with the through hole 115, the groove wall of the air inlet groove 116 is provided with a passage opening 1161, and the passage opening 1161 is used to communicate the outside with the air inlet groove 116. In some embodiments, the passage port 1161 can be used to communicate the through hole 115 with the air inlet slot 116 , so as to facilitate gas to enter the air inlet slot 116 .

In this embodiment, the support wall 114 is provided with a perforation 1141, the perforation 1141 communicates with the tubular body 111 and the air inlet groove 116, and is arranged relative to the second opening 113 for allowing external air to enter the aerosol In forming the base 200, specifically, the perforation 1141 can be used to supply the gas in the air inlet groove 116 into the fixed tube 11, and then enter the aerosol forming base 200, and the aerosol produced by the aerosol forming base 200 is taken out. . In some embodiments, the through hole 1141 can also be used for the heating element 32 of the heating element 30 to penetrate the aerosol forming substrate 200 to be disposed. In some embodiments, the perforation 1141 is a strip-shaped hole. Of course, it can be understood that in some other embodiments, the perforation 1141 is not limited to a strip shape, but can be a round hole or a square hole. The cross-sectional shape can also be circular or square.

Further, in this embodiment, the fixing tube 11 is provided with a limiting structure 117 , specifically, the limiting structure 117 is disposed in the tubular body 111 for limiting the aerosol-forming substrate 200 . In some embodiments, the limiting structure 117 can be disposed inside the tube wall of the tubular body 11 . Specifically, in some embodiments, the limiting structure 117 includes a limiting rib 1171 in the shape of a strip, which extends along the axial direction of the tubular body 111 and protrudes from the tubular body 111. The tube wall setting is used to limit the position of the aerosol-forming substrate 100 and the fixed tube 11, so as to prevent the aerosol-forming substrate 100 from shifting. In some embodiments, there are a plurality of limiting ribs 1171, and the plurality of limiting ribs 1171 are arranged at intervals along the circumferential direction of the tubular body 111, so as to limit the position of the aerosol-forming substrate 100 and avoid aerosol formation. The base 100 is formed to be offset. In some embodiments, a gap is left between the aerosol-forming substrate 100 and the tube wall of the fixed tube 11 by arranging the limiting rib 1171 to form an airflow channel 20 to facilitate gas flow.

As shown in Fig. 3 to Fig. 5 again, in this embodiment, the outer cover 12 is a hollow structure with two ends through, the cross section of the outer cover 12 is circular, and the radial dimension of the outer cover 12 can be slightly larger than the fixed pipe 11 radial size. The outer cover 12 includes a main body 121 sleeved on the outer periphery of the fixing pipe 11 and a connecting portion 122 disposed at one end of the main body 121 and detachably connected to the upper cover 13 . The main body 121 is tubular, and the inner wall of the main body 121 is provided with a limiting flange 1210 for radially limiting the fixing tube 11; The outer diameter is equivalent. In some embodiments, the outer cover 12 is provided with a vent hole 1211 , and the vent hole 1211 is provided correspondingly to the through hole 115 , and can provide gas output from the through hole 115 . Specifically, in some embodiments, the ventilation hole 1211 can be disposed on the main body portion 121 . In some embodiments, the connecting portion 122 is tubular, and its radial dimension is slightly larger than the radial dimension of the main body portion 121. The connecting portion 122 is engaged with the upper cover 13. In some embodiments, the connecting portion The outer wall of 122 is provided with buckle 1221 which is engaged with the upper cover 13 .

Further, in this embodiment, the housing assembly 10 also includes an elastic member 14; the elastic member 14 can be sleeved on the outer periphery of the fixing tube 11, and can be located between the fixing tube 11 and the outer cover 12 for When the aerosol-forming substrate 200 is inserted into the fixed tube 11 , it acts as an elastic buffer for the fixed tube 11 . In some embodiments, the elastic member 14 can be a spring. The outer wall of the fixing tube 11 can be disposed on the flange 118 matched with the elastic member 14 . The flange 118 can be annular, and can engage with the elastic member 14 .

As shown in FIG. 4 , further, in this embodiment, the airflow channel 20 is formed on the inner side and the outer side of the fixed tube 11 . In some embodiments, the airflow channel 20 first extends from the first opening 112 along the inner side of the tube wall of the fixed tube 11 toward the support wall 114 to the outside of the fixed tube 11 , and then penetrates into the fixed tube 11 from the support wall 114 , and extend toward the first opening 112 , so that external air can enter the aerosol-forming substrate 200 and send out the aerosol generated by the aerosol-forming substrate 200 . By extending the airflow passage 20 to the outside of the pipe 11, the temperature of the outer surface of the fixed pipe 11 can be lowered, and the airflow in the airflow passage 20 can be more uniform and sufficient.

Specifically, in this embodiment, the airflow channel 20 includes a first intake channel 21 , a second intake channel 22 and a communication channel 23 . The first air inlet passage 21 is disposed in the fixed tube 11, and is formed by the gap between the pipe wall of the tubular body 111 and the aerosol forming substrate 200, and one end of the first air inlet passage 21 can be connected with the first air inlet passage 21. The opening 112 communicates, that is, communicates with the outside, allowing the outside air to enter. The first air intake passage 21 can extend from the first opening 112 toward the supporting wall 114 to the through hole 115 and communicate with the through hole 115 . The second air intake passage 22 can be formed between the support wall 114 and the second opening 113 , that is, formed in the air intake groove 116 , and communicated with the first air intake passage 21 and the aerosol-forming substrate 200 , used to supply the gas of the first gas inlet channel 21 into the aerosol-forming substrate 200 . The communication passage 23 is disposed on the pipe wall of the fixed pipe 11 and formed in the through hole 115 for communicating with the first intake passage 21 and the second intake passage 22 . The second air intake passage 22 communicates with the air intake groove 116 by communicating with the passage opening 1161 , that is, the passage opening 1161 communicates with the first air intake passage 21 and the second air intake passage 22 .

In some other embodiments, the second opening 113 may be omitted, the support wall 114 may be the bottom wall of the fixed tube 11 , and the second air intake channel 22 may be formed outside the support wall 114 . Of course, it can be understood that an air intake slot may also be formed on the support wall 114 toward a side of the fixing tube 11 opposite to the first opening 112 to form the second air intake passage 22 .

Further, in this embodiment, the aerosol generating device 100 further includes a heating component 30 for heating the aerosol forming substrate 200 . The heating assembly 30 includes a fixing base 31 and a heating element 32 . The fixing seat 31 is disposed on an end of the fixing tube 11 where the second opening 113 is located, and is used for installing the heating element 31 . The heating element 32 is disposed on the fixing seat 31, protrudes from the fixing seat 31 and is inserted into the aerosol forming substrate 200 from the second opening 113 through the support wall 114, specifically, the heating element 32 It can be inserted into the aerosol-forming base 200 through the through hole 1141 . In some embodiments, the heating element 32 is roughly in the shape of a sheet, the width of the heating element 32 can be smaller than the length of the through hole 1141, and a gap can be left between the hole wall of the through hole 1141 to facilitate air intake. The gas in 1161 enters the aerosol-forming substrate 200. Of course, it can be understood that in some other embodiments, the width of the heating element 32 is not limited to be less than the length of the perforation 1141, and in some other embodiments, the thickness of the heating element 32 may be smaller than the width of the perforation 1141, so that A gap may be left between the hole wall of the through hole 1141 , so that the gas in the gas inlet groove 1161 enters the aerosol-forming substrate 200 .

As shown in Figure 1 and Figure 2, further, in this embodiment, the aerosol generating device 100 also includes a power supply component 40, the power supply component 40 can be electrically connected with the heating component 30, specifically, the power supply component 40 can be connected with the fixing seat 31, and then the heating element 32 is energized. In some embodiments, the power supply assembly 40 includes a power shell 41 , a battery 42 , a bracket 43 , a sleeve 44 , an airflow sensing device 45 and a main control board 46 . The power shell 41 is cylindrical and is used for accommodating the battery 42 , the bracket 43 , the airflow sensing device 45 and the main control board 46 therein. The bracket 43 is disposed in the power housing 41 for supporting the battery 42 and the main control board 46 . The sleeve 44 is sheathed on the bracket 43, and passes through the opening at one end of the power supply housing 41, and can be inserted from the receiving component 10 into the outer periphery of a part of the outer cover 12 to connect the receiving component 10 and the power supply component 40. The connection is fixed. The airflow sensing device 45 is disposed on the main control board 46 for activating the heating component 30 . The main control board 46 is connected with the battery 42 and the fixing seat 31 of the heating assembly 30 , so that the battery 42 supplies power to the heating assembly 30 .

As shown in FIG. 3 , FIG. 9 and FIG. 10 , further, in this embodiment, the sleeve 44 may include a sleeve body 441 , a first limiting protrusion 442 disposed on the outer wall of the sleeve body 441 , The second limiting protrusion 443 is disposed on the inner side wall of the casing 441 . The cross-section of the sleeve 441 can be circular, and the number of the first limiting protrusions 441 can be two, and the two first limiting protrusions 441 can be symmetrically arranged on the sleeve along the radial direction of the sleeve 441 The outer wall of 441 is used to cooperate with the upper cover 13 of the receiving assembly 10 to limit the position. When the receiving assembly 10 is installed with the power supply assembly 40, the upper cover 13 can be engaged with the first limiting protrusion 441. The inner side wall of the upper cover 13 is provided with a first limiting groove 131 which cooperates with the first limiting protrusion 441 for limiting. Of course, it can be understood that in some other embodiments, the number of first limiting protrusions 441 is not limited to two. There may be two second limiting protrusions 443, and the two second limiting protrusions 443 may be symmetrically arranged on the inner side wall of the sleeve body 441 along the radial direction of the sleeve body 441 for cooperating with the outer cover 12 limit. When the receiving component 10 and the power supply component 40 are installed, the second limiting protrusion 443 can be engaged with the outer cover 12 , and when the sleeve 441 is sleeved on the outer cover 12 , the second limiting protrusion 443 can be snap into the second limiting groove 1212 provided on the outer wall of the outer cover 12 . Understandably, in some other embodiments, the second limiting protrusions 443 are not limited to two.

Fig. 11 shows the second embodiment of the aerosol generating device of the present invention, which differs from the first embodiment in that the through hole 115 is arranged close to the first opening 112, and the distance from it to the first opening 112 is less than Or equal to the distance to the support wall 114 , so that the distance from the through hole 115 to the second air intake channel 22 on the support wall 114 increases, thereby taking away more heat from the outer surface of the fixed pipe.

Fig. 12 shows the third embodiment of the aerosol generating device of the present invention, which is different from the first embodiment in that the cross section of the fixing tube 11 can be oval, and the insertion channel formed inside the tubular body 111 1110 can be oval, and the limiting rib 1171 can be omitted. The length of the short axis of the insertion channel 1110 can be roughly equivalent to the outer diameter of the aerosol-forming substrate 200 so as to fix the aerosol-forming substrate 200, and the length of the long axis of the insertion channel 1110 can be greater than that of the aerosol-forming substrate 200 The outer diameter of the first air intake channel 21 can be located at both ends of the long axis of the insertion channel 1110 .

It can be understood that the above examples only express the preferred implementation of the present invention, and its description is relatively specific and detailed, but it should not be interpreted as limiting the patent scope of the present invention; it should be pointed out that for those of ordinary skill in the art In other words, on the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some modifications and improvements can also be made, all of which belong to the protection scope of the present invention; All equivalent transformations and modifications should fall within the scope of the claims of the present invention.

Claims

An aerosol generating device, characterized by comprising a fixed tube (11) for the aerosol forming substrate (200) to be installed and capable of forming an air flow channel (20);

The fixing tube (11) includes a support wall (114) and a first opening (112) corresponding to the support wall (114) for the aerosol forming substrate (200) to be loaded into;

The air flow channel (20) first extends from the first opening (112) along the inner side of the tube wall of the fixed tube (11) toward the support wall (114) to the outside of the fixed tube (11) , and then penetrate the fixed tube (11) from the support wall (114) and extend toward the first opening (112), so that the airflow enters the aerosol from the support wall (114) The aerosol generated by the aerosol forming base (200) is sent out in the forming base (200).
The aerosol generating device according to claim 1, characterized in that, the airflow channel (20) includes a first air intake channel (21); the first air intake channel (21) is formed in the fixed tube ( 11), communicate with the outside through the first opening (112), and extend from the first opening (112) toward the support wall (114).
The aerosol generating device according to claim 2, characterized in that, the airflow channel (20) includes a second air intake channel (22); the second air intake channel (22) is formed on the support wall ( 114), and communicates with the first air inlet channel (21) and the aerosol-forming substrate (200).
The aerosol generating device according to claim 2, characterized in that, the airflow channel (20) comprises a second air intake channel (22);

The fixing pipe (11) includes a second opening (113) corresponding to the first opening (112); the support wall (114) is arranged between the first opening (112) and the second opening between (113);

The second air intake channel (22) is formed between the support wall (114) and the second opening (113), and forms a matrix with the first air intake channel (21) and the aerosol (200) CONNECTED.
The aerosol generating device according to claim 4, characterized in that, the side of the support wall (114) opposite to the second opening (113) is provided with an air inlet slot (116); the second The air intake channel (22) is formed in the air intake groove (116).
The aerosol generating device according to claim 5, characterized in that, the groove wall of the air inlet groove (116) is provided with a channel communicating with the first air inlet passage (21) and the second air inlet passage ( 22) Passage port (1161).
The aerosol generating device according to claim 2, characterized in that, the airflow channel (20) includes a communication channel (23) communicating with the first air intake channel (21);

The communication channel (23) is arranged on the pipe wall of the fixed pipe (11).
The aerosol generating device according to claim 5, characterized in that, a through hole (115) is opened on the tube wall of the fixed tube (11); the communication channel (23) is formed in the through hole (115) )middle.
The aerosol generating device according to claim 8, characterized in that, the distance from the through hole (115) to the support wall (114) is smaller than the distance from the through hole (115) to the first opening (112) ;

Or, the distance from the through hole (115) to the support wall (114) is greater than or equal to the distance from the through hole (115) to the first opening (112).
The aerosol generating device according to claim 1, characterized in that, the support wall (114) is provided with a perforation (1141) for allowing external air to enter the aerosol forming substrate (200).
The aerosol generating device according to claim 1, characterized in that, the fixed tube (11) comprises a tubular body (111);

The tubular body (111) is provided with a limiting structure (117) for limiting the position of the aerosol forming substrate (200);

And/or, the interior of the tubular body (111) forms an insertion channel (1110) for the insertion of the aerosol-forming substrate (200); the cross-section of the insertion channel (1110) is circular, so The radial dimension of the insertion channel (1110) is equivalent to the outer diameter of the aerosol-forming substrate (200) whose cross section is circular.
The aerosol generating device according to claim 11, characterized in that, the limiting structure (117) comprises a limiting rib (1171) protruding from a tube wall of the tubular body (111).
The aerosol generating device according to claim 12, characterized in that there are multiple limiting ribs (1171), and the plurality of limiting ribs (1171) are along the circumference of the tubular body (111). to the interval setting.
The aerosol generating device according to claim 1, characterized in that, the fixed tube (11) comprises a tubular body (111), and the inside of the tubular body (111) forms a matrix (200) for the formation of the aerosol Inserted insertion channel (1110); the cross-section of the insertion channel (1110) is elliptical, and the major axis of the insertion channel (1110) is larger than the aerosol-forming substrate with a circular cross-section ( 200), the minor axis of the insertion channel (1110) is equivalent to the outer diameter of the aerosol-forming substrate (200) whose cross section is circular.
The aerosol generating device according to claim 1, characterized in that, the aerosol generating device further comprises an outer cover (12) sheathed on the periphery of the fixed tube (11);

The outer cover (12) is a hollow structure with both ends penetrating.
The aerosol generating device according to claim 15, characterized in that, the length of the fixed tube (11) is longer than the length of the outer cover (12), and the two ends of the fixed tube (11) are separated from the outer cover ( 12) Both ends of the piercing set.
The aerosol generating device according to claim 16, characterized in that, a through hole (115) is opened on the tube wall of the fixed tube (11);

The outer cover (12) is provided with vent holes (1211) corresponding to the through holes (115).
The aerosol generating device according to claim 1, characterized in that the aerosol generating device further comprises a heating component (30);

The fixing pipe (11) further includes a second opening (113) opposite to the first opening (112);

The heating assembly (30) includes a heating element (32); the heating element (32) is inserted into the aerosol-forming base (200) through the support wall (114) from the second opening (113) set up.
The aerosol generating device according to claim 18, characterized in that, the support wall (114) is provided with a perforation (1141), and the heating element (32) is inserted into the aerosol through the perforation (1141) forming a matrix (200);

A gap is left between the perforation ( 1141 ) and the heating element ( 32 ) for external air to enter the aerosol-forming substrate ( 200 ).
The aerosol generating device according to claim 19, characterized in that, the heating element (32) is in the shape of a sheet, and the perforation (1141) is a strip-shaped hole;

The length of the perforation (1141) is greater than the width of the heating element (32); or the width of the perforation (1141) is greater than the thickness of the heating element (32).

the