Aerosol generating device

Abstract

The utility model relates to an aerosol generating device which comprises a fixing structure comprising a first end and a second end which are oppositely arranged; the first end is provided with an opening, a cavity for accommodating at least part of an aerosol generating substrate is formed between the first end and the second end, and the cavity is communicated with the opening; an airflow channel is arranged in the fixing structure, and at least part of the airflow channel extends from the first end to the second end; the air flow sensing structure is arranged at the second end and measures the number of suction ports by sensing the air flow conveyed by the air flow channel; the airflow switch is arranged at the second end and located between the airflow channel and the airflow sensing structure so that the airflow switch can be turned on when a user sucks aerosol, and airflow in the airflow channel can enter the airflow sensing structure. The aerosol generating device can measure the number of smoking times, meets the requirements of users, and has the advantages of being simple in structure and convenient to measure.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization field especially relates to aerosol generating device. BACKGROUND

[0002] The aerosol generating device in the related art usually heats the aerosol generating substrate by resistance, infrared and other ways to make it generate aerosol, and the number of puffs for suction of the aerosol generating device usually cannot be counted. INVENTION CONTENTS

[0003] The utility model solves the technical problem, provides an improved aerosol generating device.

[0004] The utility model adopts the technical scheme to solve its technical problem: construct an aerosol generating device, which comprises:

[0005] The fixed structure comprises a first end and a second end arranged oppositely, the first end has an opening, a cavity for accommodating at least part of the aerosol generating substrate is formed between the first end and the second end, the cavity is communicated with the opening, and an airflow channel is arranged in the fixed structure, at least part of the airflow channel extends from the first end to the second end.

[0006] The airflow sensing structure is arranged at the second end and measures the number of puffs by sensing the airflow conveyed by the airflow channel.

[0007] The airflow switch is arranged at the second end and located between the airflow channel and the airflow sensing structure, so as to be opened when a user sucks aerosol, and the airflow of the airflow channel enters the airflow sensing structure.

[0008] In some embodiments, the second end is provided with an airflow through hole, at least part of the airflow channel extends from the first end to the airflow through hole, and the airflow sensing structure is arranged at one end of the airflow through hole away from the first end.

[0009] In some embodiments, the airflow switch has a communication channel communicated with the airflow sensing structure, one end of the communication channel is provided with at least two baffles swinging under the action of negative pressure.

[0010] When the baffles are at the first position, the communication channel is cut off from the airflow channel.

[0011] When the baffles are at the second position, the communication channel is communicated with the airflow channel.

[0012] In some embodiments, the airflow switch comprises a hollow cylindrical body, the communication channel is formed in the cylindrical body, and the baffles are arranged at one end of the cylindrical body.

[0013] In some embodiments, the baffle and the columnar body are an integral structure.

[0014] In some embodiments, the second end has a support wall, and a receiving portion is arranged on a side of the support wall facing away from the opening; a receiving cavity is formed inside the receiving portion, and the receiving cavity is in communication with the cavity;

[0015] The air flow switch is at least partially embedded in the receiving cavity.

[0016] In some embodiments, the air flow switch is an elastic member, and is in interference fit with an inner wall of the receiving portion.

[0017] In some embodiments, the second end has a support wall, and an air inlet groove is arranged inside the support wall, and the air inlet groove forms part of the air flow passage;

[0018] The air flow through hole is arranged on the support wall, and is in communication with the air inlet groove.

[0019] In some embodiments, a main control board is further included, and the air flow sensing structure is connected with the main control board.

[0020] In some embodiments, the air flow sensing structure includes a circuit board and an air flow sensor mounted on the circuit board; and the circuit board is connected with the main control board.

[0021] The aerosol generating device has the following advantages: the aerosol generating device is provided with an air flow sensing structure and an air flow switch at a second end of a fixing structure, and the air flow switch is arranged between the air flow passage and the air flow sensing structure, and is configured to open the air flow passage to allow air flow to enter the air flow sensing structure when a user inhales aerosol, so that the air flow sensing structure can sense the air flow conveyed by the air flow passage, and the number of puffs can be counted, thereby meeting the user's demand. The aerosol generating device has the advantages of simple structure and convenient counting. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described in connection with the drawings and embodiments. In the drawings:

[0023] Figure 1 is a structure schematic view of the aerosol generating device equipped with an aerosol generating substrate in some embodiments of the utility model;

[0024] Figure 2 is Figure 1 a state schematic view of the aerosol generating device when being inhaled;

[0025] Figure 3 is Figure 1 a state schematic view of the aerosol generating device when the inhalation is stopped;

[0026] Figure 4 is Figure 1 a structure diagram of an aerosol generating device shown in FIG.

[0027] Figure 5 is Figure 4 a sectional view of the aerosol generating device shown in FIG.

[0028] Figure 6 is Figure 4 a bracket structure diagram of the aerosol generating device shown in FIG.

[0029] Figure 7 is Figure 4 a partial structure diagram of the aerosol generating device shown in FIG.

[0030] Figure 8 is Figure 4 a partial structure sectional view of the aerosol generating device shown in FIG.

[0031] Figure 9 is Figure 7 a first fixing frame structure diagram of the aerosol generating device shown in FIG.

[0032] Figure 10 is Figure 9 a sectional view of the first fixing frame shown in FIG.

[0033] Figure 11 is Figure 4 a communication passage open state diagram of an air flow switch of the aerosol generating device shown in FIG.

[0034] Figure 12 is Figure 11 a sectional view of the air flow switch of the aerosol generating device shown in FIG.

[0035] Figure 13 is Figure 4 a communication passage closed state diagram of the air flow switch of the aerosol generating device shown in FIG.

[0036] Figure 14 is Figure 13 a sectional view of the air flow switch of the aerosol generating device shown in FIG. DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the orientation or positional relationship indicated by "upper", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is constructed and operated in a specific orientation, only for the convenience of describing the present technical solution, and does not indicate that the device or element referred to must have a specific orientation, therefore it should not be understood as a limitation on the present application.

[0038] It also needs to be explained that unless there is an explicit provision and limitation, the terms such as "mounting", "connecting", "fixing", "arranging" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on another element, or there can be one or more intervening elements. The terms "first", "second", etc. are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second", etc. can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Figures 1 to 3 Some preferred embodiments of the aerosol generating device of the present application are shown. The aerosol generating device 100 heats the aerosol generating substrate 200 in a heating and non-combustion manner. Specifically, the aerosol generating device 100 can heat the aerosol generating substrate 200 by infrared radiation. In the present embodiment, the aerosol generating substrate 200 can be in the form of a column, and can be a solid material made of leaves and / or stems of plants (e.g., tobacco) in the form of a strip, a sheet, a particle, or a one-piece molding, and further, aroma components can be added to the solid material.

[0040] As shown in Figure 4 and Figure 5 In some embodiments, the aerosol generating device 100 can include a housing 10, a support 20, a fixing structure 30, and a heating structure 40. The housing 10 can be used to accommodate the support 20, the fixing structure 30, and the heating structure 40, etc. The support 20 can be used to support the fixing structure 30. The fixing structure 30 can be used to fix the heating structure 40, and it can be used to fix the aerosol generating substrate 200. The heating structure 40 can be sleeved around part of the outer periphery of the aerosol generating substrate 200, and it can heat the aerosol generating substrate 200 by radiating infrared light waves, so that the aerosol generating substrate 200 generates aerosol for the user to smoke. In other embodiments, the heating structure 40 can not be limited to heating the aerosol generating substrate 200 by radiating infrared light waves, but can also heat the aerosol generating substrate 200 by resistance or electromagnetic heating. In some embodiments, the aerosol generating device 100 further includes a power supply structure 90, which can be mounted on the support 20 and electrically connected with the heating structure 40, and can be used to supply power to the heating structure 40.

[0041] In some embodiments, the housing 10 can be substantially cylindrical, in particular, it can be a flat cylindrical structure, and is a hollow structure. One end of the housing 10 is provided with a fitting opening 11, and the other end is provided with a charging opening 12. The fitting opening 11 can be used for components such as the support 20, the fixing structure 30, etc. to be fitted. The charging opening 12 is provided with a charging module connected with the power supply structure 90, and an external charging structure can be connected with the charging module through the charging opening 12, thereby supplying power to the power supply structure 90. In some embodiments, a cover 13 can be provided at the fitting opening 11, and the cover 13 can be partially embedded in the fitting opening 11. The cover 13 is provided with a plug opening 131, which can be used for inserting the aerosol generating substrate 200 into the fixing structure 30.

[0042] As shown in Figure 6 some embodiments, the support 20 can include a first side wall 21, a second side wall 22, an end wall 23, and a fixing frame 24. The first side wall 21 and the second side wall 22 are longitudinally arranged, and the first side wall 21 and the second side wall 22 are oppositely arranged. The end wall 23 is arranged at one end of the first side wall 21 and the second side wall 22, and is connected with the first side wall 21 and the second side wall 22. The fixing frame 24 is arranged at the other end of the first side wall 21 and the second side wall 22, and can be fixed at the fitting opening 11 of the housing 10. In some embodiments, a connecting wall 25 is arranged between the first side wall 21 and the second side wall 22, and the two ends of the connecting wall 25 are connected with the first side wall 21 and the second side wall 22. In some embodiments, the support 20 is provided with a support structure 26, which is protrudingly arranged on the connecting wall 25. One side of the support structure 26 facing the end wall 23 is provided with a first receiving groove 261, and the other side of the support structure 26 facing the fixing frame 24 is provided with a second receiving groove 262. The first receiving groove 261 is used for receiving the airflow sensing structure 60, and the second receiving groove 262 is used for receiving the airflow switch 70. The support structure 26 is provided with an air passage 263, which is located at the bottom surface of the second receiving groove 262 and penetrates through the first receiving groove 261, and can be used for air flow into the first receiving groove 261.

[0043] As shown in Figure 5 , Figures 7 to 10 some embodiments, the fixing structure 30 can be coaxially arranged with the housing 10, and is arranged close to the fitting opening 11 of the housing 10. In some embodiments, the fixing structure 30 can include a first end 30a and a second end 30b. The first end 30a and the second end 30b are oppositely arranged. The first end 30a can be arranged towards the fitting opening 11. The aerosol generating substrate 200 can be inserted into the fixing structure 30 from the first end 30a to the second end 30b.

[0044] In some embodiments, the fixing structure 30 can include a first fixing frame 31 and a second fixing frame 32. The first fixing frame 31 and the second fixing frame 32 are coaxial and spaced apart, and can be fixed to two ends of the heat generating structure 40 respectively. The first fixing frame 31 can be arranged close to the support structure 26. The second fixing frame 32 can be arranged close to the assembly opening 11. The first fixing frame 31 and the second fixing frame 32 can cooperate to fix the heat generating structure 40. An end of the first fixing frame 31 away from the second fixing frame 32 forms a second end 30b, and an end of the second fixing frame 32 toward the assembly opening 11 forms a first end 30a. The second fixing frame 32 can be a tubular structure with two ends through, and the second fixing frame 32 is provided with an opening 321 at the first end 30a, and has a sleeve interface 322 at an end of the second fixing frame 32 toward the first fixing frame 31, which is arranged in communication with the opening 321.

[0045] In some embodiments, the first fixing frame 31 is substantially a tubular structure. The inside of the first fixing frame 31 is hollow and forms a cavity 310, which can be located between the first end 30a and the second end 30b and can be used to accommodate at least part of the aerosol generating substrate 200. An end of the first fixing frame 31 forming the second end 30b is provided with a support wall 311. That is, the second end 30b has a support wall 311. The support wall 311 can be used to support the aerosol generating substrate 200. An end of the first fixing frame 31 toward the first end 30a is provided with a socket 312, which can be used for the heat generating structure 40 to be inserted. The cavity 310 is in communication with the socket 312, and further in communication with the opening 321.

[0046] In some embodiments, the second end 30b is provided with an airflow through hole 313, which is arranged on the support wall 311, located at the central axis of the support wall 311, and penetrates through the thickness of the support wall 311, which can be used for airflow to pass through. In some embodiments, the airflow through hole 313 can be a circular through hole.

[0047] In some embodiments, the inside of the support wall 311 is provided with a support boss 314, which can be a plurality of support bosses 314 arranged spaced apart along the circumference of the support wall 311, and the plurality of support bosses 314 are distributed spaced apart on the outer periphery of the airflow through hole 313. In some embodiments, the inside of the support wall 311 is provided with an air inlet groove 315, which can be formed by the interval between two adjacent support bosses 314, and the air inlet groove 315 can extend toward the airflow through hole 313, which can be in communication with the airflow through hole 313.

[0048] In some embodiments, the side of the support wall 311 facing away from the opening 321 is provided with a receiving portion 316 coaxially arranged with the support wall 311, which can be a hollow cylindrical structure with one end open, and an inner side of the receiving portion 316 can form a receiving cavity 3161, which is in communication with the cavity 310 through the airflow through hole 313, which can be used for placing the airflow switch 70.

[0049] In some embodiments, the first fixing frame 31 is provided with a limiting structure 317, which is closer to the socket 312 than to the support wall 311, i.e., it is arranged close to the socket 312, and the limiting structure 317 is arranged on the inner wall of the first fixing frame 31, which can be an annular boss, which can be coaxially arranged with the support wall 311, and is used for limiting the installation of the heat generating structure 40.

[0050] In some embodiments, the second fixing frame 32 can include a sleeve portion 32a and a fitting portion 32b, the sleeve portion 32a can be cylindrical, which can be sleeved on part of the outer periphery of the heat generating structure 40. The fitting portion 32b is arranged at one end of the sleeve portion 32a, and can be fitted with the fixing frame 24 of the bracket 20, which can be clamped and fixed with the cover 13.

[0051] In some embodiments, the fixing structure 30 further includes a first fixing member 33, which is partially embedded and installed in the first fixing frame 31, and is coaxially arranged with the first fixing frame 31, and the first fixing member 33 can be sleeved on the outer periphery of part of the heat generating structure 40, and is in interference fit with the heat generating structure 40 and the first fixing frame 31. In some embodiments, the first fixing member 33 can be an elastic sleeve.

[0052] In some embodiments, the fixing structure 30 further includes a second fixing member 34, which is partially embedded and installed in the second fixing frame 32, and is coaxially arranged with the second fixing frame 32. The second fixing member 34 can be sleeved on the outer periphery of part of the heat generating structure 40, and is in interference fit with the heat generating structure 40 and the second fixing frame 32. In some embodiments, the second fixing member 34 can be an elastic sleeve.

[0053] In other embodiments, the fixing structure 30 is not limited to the above structure, and in other embodiments, the fixing structure 30 can be a separate fixing sleeve, and the second fixing frame 32, the first fixing member 33 and the second fixing member 34 can be omitted.

[0054] In some embodiments, the heat generating structure 40 is substantially tubular, which can include a tube body and a heat generating body disposed on the tube body. The tube body can be an infrared transparent ceramic tube or a quartz tube. The heat generating body can be an infrared heat generating film that can radiate infrared light and heat the aerosol generating substrate 200 through the tube body. In some embodiments, the tube body can also be a metal tube or an infrared non-transparent ceramic tube, and the heat generating body can be a resistance wire.

[0055] In some embodiments, the fixing structure 30 is provided with an airflow passage, at least part of which can extend from the first end 30a to the second end 30b; that is, the at least part of the airflow passage can extend from the first end 30a to the airflow through hole 313. Specifically, a first gap is provided between the second fixing bracket 32 and the aerosol generating substrate 200, which extends from the opening of the first end 30a to the sleeve interface 322 of the second fixing bracket 32. A second gap can be provided between the heat generating structure 40 and the aerosol generating substrate 200, which is in communication with the first gap and can extend to the first fixing bracket 31 in the axial direction of the heat generating structure 40. In some embodiments, a third gap is provided between the first fixing bracket 31 and the aerosol generating substrate 200, which can be in communication with the second gap and extend to the air inlet groove 315; that is, the first gap, the second gap, the third gap, and the air inlet groove 315 are in communication in sequence to form the at least part of the airflow passage. The airflow can enter the bottom of the aerosol generating substrate 200 along the airflow passage, part of which is folded back to carry the aerosol generated by the aerosol generating substrate 200 out, and part of which can pass through the airflow through hole 313.

[0056] In some embodiments, the aerosol generating device further includes a heat insulation structure 50, which can be a columnar structure with both ends passing through, which can be sleeved on the outer periphery of the heat generating structure 40, specifically, on the outer periphery of the first fixing bracket 31, the heat generating structure 40, and part of the second fixing bracket 32. And can be fixed with the first fixing bracket 31 and the second fixing bracket 32 by interference fit. In some embodiments, the heat insulation structure 50 can be heat insulation cotton. The heat insulation structure 50 can reduce the heat conduction of the heat generating structure 40 to the housing 10. In other embodiments, the heat insulation structure 50 can be omitted.

[0057] In some embodiments, the aerosol generating device further comprises an airflow sensing structure 60 disposed at the second end 30b. The airflow sensing structure 60 can sense the airflow delivered through the airflow passage and then measure the puffing number of the aerosol generating substrate 200. Specifically, the airflow sensing structure 60 can be mounted at one end of the airflow passage 313 away from the first end 30a and at least partially embedded in the first receiving groove 261 of the support structure 26. In some embodiments, the airflow sensing structure 60 can comprise a circuit board 61 for mounting an airflow sensor 62. The airflow sensor 62 can be disposed on the side of the circuit board 61 opposite to the second receiving groove 262 in a patch manner. The circuit board 61 can be provided with an airflow through hole 611 in communication with the air passage 263 for the airflow to pass through the airflow sensor 62.

[0058] As shown in FIGS. 1 and 2, in some embodiments, the aerosol generating device further comprises an airflow switch 70 disposed at the second end 30b. Specifically, the airflow switch 70 is disposed between the airflow passage and the airflow sensing structure 60. The airflow switch 70 can be opened when the user puffs the aerosol. When the airflow switch 70 is opened, the airflow of the airflow passage can be delivered to the airflow sensing structure 60 through the airflow switch 70. Figure 2 Figure 3 Figures 11 to 14 As shown in FIGS. 1 and 2, in some embodiments, the aerosol generating device further comprises an airflow switch 70 disposed at the second end 30b. Specifically, the airflow switch 70 is disposed between the airflow passage and the airflow sensing structure 60. The airflow switch 70 can be opened when the user puffs the aerosol. When the airflow switch 70 is opened, the airflow of the airflow passage can be delivered to the airflow sensing structure 60 through the airflow switch 70.

[0059] In some embodiments, the airflow switch 70 can be partially embedded in the accommodation cavity 3161 and partially accommodated in the second receiving groove 262. The airflow switch 70 can be in close contact with the inner wall of the accommodation portion 316 and the bottom wall of the second receiving groove 262, thereby preventing the condensate from leaking out of the support structure 26. In some embodiments, the airflow switch 70 can be an elastic member made of an elastic material such as silicone or rubber. The airflow switch 70 can be in interference fit with the accommodation portion 316 to achieve sealing.

[0060] ​​In some embodiments, the airflow switch 70 can include a hollow columnar body 71. The columnar body 71 can be cylindrical, and the outer diameter thereof can be adapted to the inner diameter of the accommodating cavity 3161. The columnar body 71 can be embedded in the accommodating cavity 3161, and can be in interference fit with the inner wall of the accommodating portion 316. The columnar body 71 can be a through structure at both ends. In some embodiments, the airflow switch 70 has a communication channel 75, which can be partially formed in the columnar body 71. In some embodiments, one end of the communication channel 75 is provided with at least two flaps 72, in particular, the at least two flaps 72 are arranged at one end of the columnar body 71 towards the support wall 311, and are arranged in a circumferential interval along the channel opening at one end of the columnar body 71. In some embodiments, the flaps 72 can be an integral structure with the columnar body 71, and the two can be integrally formed by injection molding. In some embodiments, the flaps 72 can be four, and the four flaps 72 can be distributed in a cross shape, and one side of each flap 72 can be connected with the inner wall of the columnar body 71.

[0061] The flaps 72 can swing under the action of negative pressure. When no aerosol is smoked or smoking is stopped, the air pressure at both ends of the airflow passage 313 is the same, the flaps 72 are located at the first position, that is, they can be parallel to the end face of the columnar body 71, the gap between the four flaps 72 is reduced so that the airflow and the condensed liquid are difficult to pass through, and the communication channel 75 can be separated from the airflow passage by the flaps 72, thereby avoiding the condensed liquid from leaking out of the airflow sensing structure 60, and further protecting the airflow sensing structure 60 from being damaged. In some embodiments, the first position is also the initial position. When the user smokes the aerosol, the fixed structure 30 generates negative pressure at the second end 30b, the air pressure at one end of the airflow passage 313 towards the first end 30a is less than the air pressure at one end of the airflow passage 313 towards the airflow sensing structure 60, and the flaps 72 can swing from the first position to the direction of the support wall 311 to the second position. When the flaps 72 are located at the second position, the communication channel 75 can communicate with the airflow passage through the gap between the at least two flaps 72 and the airflow passage 313, and the airflow in the airflow passage can be transported to the airflow sensor through the communication channel 75, the air hole 263 and the airflow through hole 611, thereby achieving the recording of the number of puffs.

[0062] In some embodiments, the airflow switch 70 further includes a limiting flange 73 arranged at one end of the columnar body 71. The limiting flange 73 is annular, and the outer diameter thereof can be greater than the outer diameter of the columnar body 71. The outer diameter of the limiting flange 73 can be greater than the outer diameter of the accommodating portion 316, and it can be limited in cooperation with the accommodating portion 316. In some embodiments, the end of the limiting flange 73 away from the columnar body 71 is provided with an elastic protrusion 74, which can elastically abut against the bottom wall of the second accommodating groove 262, thereby increasing the sealing performance of the assembly between the airflow switch 70 and the second accommodating groove 262.

[0063] In some embodiments, the aerosol generating device further comprises a main control board 80 which can be accommodated in the holder 20 and which can be connected with the power supply structure 90. The circuit board 61 of the airflow sensing structure 60 can be connected with the main control board 80.

[0064] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, the above technical features can be freely combined, and several modifications and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. An aerosol generating device, characterized by, The application relates to an aerosol generating device, comprising: a fixed structure (30) comprising oppositely arranged first and second ends (30a and 30b); the first end (30a) has an opening (321), and a cavity (310) for accommodating at least part of an aerosol generating substrate is formed between the first end (30a) and the second end (30b), and the cavity (310) communicates with the opening (321); an airflow channel is arranged in the fixed structure (30), and at least part of the airflow channel extends from the first end (30a) to the second end (30b); an airflow sensing structure (60) arranged at the second end (30b) and used for sensing the number of puffs of an aerosol generated by the user through the airflow channel; an airflow switch (70) arranged at the second end (30b) and located between the airflow channel and the airflow sensing structure (60) so as to be opened when the user puffs the aerosol and allow the airflow in the airflow channel to enter the airflow sensing structure (60).

2. An aerosol generation device according to claim 1, wherein, The second end (30b) is provided with an airflow through hole (313), and at least part of the airflow channel extends from the first end (30a) to the airflow through hole (313); the airflow sensing structure (60) is arranged at one end of the airflow through hole (313) away from the first end (30a).

3. An aerosol generation device according to claim 1, wherein, The airflow switch (70) has a communication channel (75) communicating with the airflow sensing structure (60), and one end of the communication channel (75) is provided with at least two flaps (72) that swing under the action of negative pressure; When the flaps (72) are in a first position, the communication channel (75) is blocked from the airflow channel; When the flaps (72) are in a second position, the communication channel (75) communicates with the airflow channel.

4. An aerosol generation device according to claim 3, wherein, The airflow switch (70) comprises a hollow columnar body (71), the communication channel (75) is formed in the columnar body (71), and the flaps (72) are arranged at one end of the columnar body (71).

5. An aerosol generation device according to claim 4, wherein, The flaps (72) and the columnar body (71) are in an integrated structure.

6. The aerosol generation device of claim 1, wherein, The second end (30b) has a support wall (311), one side of the support wall (311) away from the opening (321) is provided with a receiving portion (316), an inner side of the receiving portion (316) forms a receiving cavity (3161), and the receiving cavity (3161) communicates with the cavity (310); The airflow switch (70) is at least partially embedded in the receiving cavity (3161).

7. An aerosol generation device according to claim 6, wherein, The airflow switch (70) is an elastic member and is in interference fit with an inner wall of the receiving portion (316).

8. An aerosol generation device according to claim 2, wherein, The second end (30b) has a support wall (311), an inner side of the support wall (311) is provided with an air inlet groove (315), and the air inlet groove (315) forms part of the airflow channel; The airflow through hole (313) is arranged on the support wall (311) and communicates with the air inlet groove (315).

9. The aerosol generation device of claim 1, wherein, The application further comprises a main control board (80), and the airflow sensing structure (60) is connected with the main control board (80).

10. An aerosol generation device according to claim 9, wherein, The airflow sensing structure (60) comprises a circuit board (61) and an airflow sensor (62) mounted on the circuit board (61); the circuit board (61) is connected with the main control board (80).

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