Aerosol generating device

Abstract

The utility model relates to an aerosol generating device, comprising: a main body module comprising an atomization assembly, a holder and an airflow detector at least partially arranged in the holder, the holder comprising a holding wall connected with the atomization assembly and an annular rib integrally formed with the holding wall and surrounding the outer side surface of the holding wall, the holder being provided with an air guide channel; the first shell is internally provided with a first receiving cavity, the near end, in the longitudinal direction, of the first shell is open so that the main body module can enter the first receiving cavity, the far end, in the longitudinal direction, of the first shell is provided with a bottom wall, the bottom wall is used for supporting the holding piece, and an air inlet hole is formed in the first shell; the air inlet is in fluid communication with the airflow detector and the atomization assembly through the air guide channel; wherein the annular rib is in interference fit with the first housing, thereby providing a seal between the outer side surface of the retaining wall and the inner surface of the first housing.

Description

Technical Field

[0001] This application relates to the technical field of aerosol generation, and particularly to an aerosol generating device. Background Art

[0002] An aerosol generating device is a device that can atomize a liquid preparation to form an aerosol. In some exemplary prior arts, the aerosol generating device includes a housing and an assembly. The assembly includes an atomizer, a holder, a sealing ring, and a microphone (i.e., an airflow detector) fixed on the holder for detecting a suction action. One end of the housing has an open mouth, and at least a part of the assembly enters the housing through the open mouth to be held. An airflow channel communicating the microphone and the atomizer is provided in the assembly. An air inlet hole communicating the outside and the airflow channel is provided on the fixed seat. The sealing ring is sleeved in a groove on the outer surface of the fixed seat to provide a sealed connection between the inner wall of the housing and the fixed seat, so that when sucking, the outside air can flow into the atomizer through the airflow channel concentratedly, thereby improving the detection accuracy of the microphone.

[0003] However, during the process of combining the housing and the assembly, the sealing ring slides frictionally with the inner wall of the housing, which easily causes the sealing ring to roll, resulting in the displacement of the sealing ring relative to the fixed seat and deviation from the preset position, causing the sealing part between the two to fail. As a result, some unwanted air does not flow through the airflow channel into the interior of the aerosol generating device during suction, leading to a change in the suction resistance of the original design of the aerosol generating device, and the microphone cannot reach the expected detection accuracy. Summary of the Utility Model

[0004] The purpose of this application includes providing an aerosol generating device that can enable the airflow detector to reach the expected detection accuracy.

[0005] An aerosol generating device provided by at least one embodiment of this application includes:

[0006] A main body module, including an atomization component, a holder, and an airflow detector disposed at least partially in the holder. The holder includes a holding wall connecting the atomization component and an annular rib integrally formed with the holding wall and surrounding the outer surface of the holding wall. A gas guiding channel is provided on the holder; and

[0007] A first housing, which has a first receiving cavity therein. The proximal end of the first housing in the longitudinal direction is open for the main body module to enter the first receiving cavity. The distal end of the first housing in the longitudinal direction has a bottom wall for supporting the holder, and an air inlet hole is provided on the first housing. The air inlet hole fluidly connects the airflow detector and the atomization component through the gas guiding channel;

[0008] Wherein, the annular rib is in interference fit with the first housing, so as to provide a seal between the outer surface of the holding wall and the inner surface of the first housing.

[0009] As an example, there is one or more annular ribs, and the minimum distance between the annular rib and the proximal end of the first housing is greater than 2 mm; or

[0010] The distance between the proximal end of the holding member and the proximal end of the first housing is greater than 2 mm.

[0011] As an example, the main body module further includes a nozzle having an air inlet and a second housing connecting the first housing and the nozzle. The atomization assembly is in fluid communication with the air inlet, and the proximal end of the atomization assembly is connected to the second housing;

[0012] There is a second receiving cavity in the second housing, the proximal end of the atomization assembly is held in the second receiving cavity, and the longitudinal depth of the first receiving cavity is greater than the longitudinal depth of the second receiving cavity; or

[0013] The second housing is a laterally extending plate-like structure for blocking the proximal open end of the first housing.

[0014] As an example, the holding member is spaced from the second housing, the proximal end of the atomization assembly is connected to the second housing, the distal end of the atomization assembly is connected to the holding member, and the middle region of the atomization assembly contacts the inner wall of the first housing.

[0015] As an example, the main body module further includes a circuit board. There is a sealing cavity between the atomization assembly and the circuit board that is in fluid communication with the atomization assembly and the air guiding channel. The air flow detector is disposed in the sealing cavity and is mounted on the circuit board.

[0016] As an example, there is a hollow flexible member corresponding to the sealing cavity on the circuit board. The holding member further includes a bottom cover. The bottom cover supports the circuit board and there are protruding columns on the bottom cover. The air guiding channel is disposed in the protruding columns, and at least a part of the protruding columns is press-fitted into the hollow flexible member.

[0017] As an example, the atomization assembly includes a sealing plug and a cup body having a storage cavity inside. The sealing plug includes a base body and an annular wall. The base body is press-fitted into the cup body and is sealingly connected to the cup body to seal the distal end of the storage cavity. The annular wall is located outside the cup body and is sealingly connected to the circuit board. The sealing cavity is located inside the annular wall.

[0018] As an example, the base body is held inside the cup body, the annular wall is held inside the holding wall, the sealing plug further includes a flange located between the base body and the annular wall, the flange is clamped between the holding wall and the cup body, and is in sealing contact with the inner wall of the first housing.

[0019] As an example, the main body module further includes a power supply assembly arranged in parallel with the atomization assembly, and both the atomization assembly and the air flow detector are electrically connected to the power supply assembly;

[0020] The distal end of the power supply assembly and the distal end of the atomization assembly are held in the holding member and surrounded by the holding wall.

[0021] An aerosol generating device provided by at least one embodiment of the present application includes:

[0022] A first housing having a first receiving cavity therein, and an air inlet hole is provided on the first housing; and

[0023] An atomization assembly for atomizing an aerosolizable material to generate an aerosol;

[0024] An air flow detector for sensing a change in air flow inside the aerosol generating device;

[0025] A holding member for supporting the air flow detector, and the holding member is arranged in the first receiving cavity;

[0026] Wherein, a gas guiding channel is provided on the holding member, the air inlet hole is in fluid communication with the air flow detector through the gas guiding channel, and the outer surface of the holding member is in interference fit with the inner surface of the first housing, so as to provide a seal therebetween to guide the air entering from the air inlet hole to only flow through the air flow detector from the gas guiding channel.

[0027] The aerosol generating device provided by the above embodiments includes a main body module and a first housing having a first receiving cavity. The main body module includes an atomization component, a holding member, and an air flow detector at least partially disposed in the holding member. The holding member includes a holding wall connecting the atomization component and an annular rib integrally formed with the holding wall and surrounding the outer surface of the holding wall. A gas guiding channel is formed on the holding member. The proximal end of the first housing in the longitudinal direction is open for the main body module to enter the first receiving cavity. The distal end of the first housing in the longitudinal direction has a bottom wall for supporting the holding member, and an air inlet hole is formed on the first housing. The air inlet hole is in fluid communication with the air flow detector and the atomization component through the gas guiding channel. Wherein, the annular rib is in interference fit with the first housing, so as to provide a seal between the outer surface of the holding wall and the inner surface of the first housing. Therefore, during the process of combining the main body module into the first receiving cavity, the annular rib serving as a seal can be prevented from having relative displacement with the holding member for holding the air flow detector, so that the suction resistance range expected by the original design can be maintained and the air flow detector can achieve the expected detection accuracy. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0029] Figure 1 is a schematic diagram of an aerosol generating device provided by an embodiment of the present application;

[0030] Figure 2 is an exploded schematic diagram of an aerosol generating device provided by an embodiment of the present application;

[0031] Figure 3 is a schematic diagram of the decomposition of the main body module and the first housing in an aerosol generating device provided by an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of a holding member provided by an embodiment of the present application;

[0033] Figure 5 is a cross-sectional view of an aerosol generating device provided by an embodiment of the present application;

[0034] In the figure:

[0035] 1. Main body module; 11. Atomization component; 111. Cup body; 112. Storage cavity; 113. Sealing plug; 1131. Substrate; 1132. Flange; 1133. Annular wall; 12. Retaining member; 121. Air guiding channel; 122. Retaining wall; 123. Annular rib; 124. Bottom cover; 125. Supporting portion; 126. Latching portion; 127. Convex column; 13. Air flow detector; 14. Power supply component; 15. Circuit board; 16. Mouthpiece; 161. Suction port; 17. Second housing; 171. Second inner housing; 172. Second outer housing; 18. Sealing cavity; 19. Flexible member;

[0036] 2. First housing; 21. First receiving cavity; 22. Air inlet hole; 23. Bottom wall; 24. Side wall; 25. First inner housing; 26. First outer housing; 27. Charging interface; 3. Shading piece. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0038] The terms "first", "second", and "third" in the present application are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship or movement situation between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0039] Referring to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0040] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element, or there may be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0041] Please refer to Figures 1-5 , an embodiment of the present application provides an aerosol generating device. The aerosol generating device includes a main body module 1 and a first housing 2. The first housing 2 has a first receiving cavity 21 inside. At least a part of the main body module 1 can be received in the first receiving cavity 21 and thus be blocked by the first housing 2. During the use of the aerosol generating device by the user, the outer wall of the first housing 2 can be held by hand.

[0042] The main body module 1 includes an atomization assembly 11, a holder 12 and an air flow detector 13. The holder 12 is used to hold the air flow detector 13 so that the relative positions of the air flow detector 13 and the atomization assembly 11 in the main body module 1 remain unchanged. Specifically, at least a part of the air flow detector 13 is arranged in the holder 12, and at the same time, the holder 12 can be connected to the atomization assembly 11.

[0043] The atomization assembly 11 includes a cup body 111 and an atomization core. The cup body 111 has a storage cavity 112 for storing aerosolizable materials. The atomization core is in fluid communication with the storage cavity 112 and is capable of absorbing the aerosolizable materials in the storage cavity 112 and atomizing at least a part of the absorbed aerosolizable materials to generate an aerosol that can be inhaled by the user. The atomization core can include an adsorption element and an electric heating element arranged on the adsorption element. Therefore, the atomization core can volatilize and atomize the aerosolizable materials by heating. The atomization core can include an ultrasonic element to atomize the aerosolizable materials by generating ultrasonic waves. The present application does not make specific limitations on the atomization core.

[0044] When the user inhales the aerosol generating device, the outside air enters the main body assembly 1, so that the air flow or air pressure in the main body assembly 1 can be changed. The air flow detector 13 is used to sense the change and can control the power supply assembly 14 to supply power to the atomization assembly 11 based on the change so that the atomization assembly 11 atomizes the aerosolizable materials to generate an aerosol, or can count the number of inhalation puffs or calculate the remaining number of inhalation puffs of the atomization assembly 11 based on the change.

[0045] When the main body module 1 and the first housing 2 are combined, at least a part of the holder 12 and the air flow detector 13 can both be arranged in the first receiving cavity 21, and at least a part of the atomization assembly 11 can also be arranged in the first receiving cavity 21.

[0046] Among them, an air inlet hole 22 is formed in the first housing 2, and an air guiding channel 121 is formed in the holding member 12. The air inlet hole 22 is in fluid communication with the air flow detector 13 and the atomization assembly 11 through the air guiding channel 121. Therefore, the air guiding channel 121, the air flow detector 13, and the atomization assembly 11 are in air guiding communication with each other in pairs. During suction, external air enters the aerosol generating device through the air inlet hole 22, and then at least part of the air flows into the atomization assembly 11 through the air guiding channel 121. At the same time, the air near the detection part in the air flow detector 13 is also sucked into the atomization assembly 11, so that the air flow detector 13 is triggered. After stopping suction, the external air flows through the air guiding channel 121 to the air flow detector 13, so that the air near the detection part in the air flow detector 13 is restored and the trigger is released. The air flow detector 13 completes a suction detection when it is triggered or when the trigger is released.

[0047] In order to enable the air flow detector 13 to achieve the expected detection accuracy and enable the aerosol generating device to reach the expected suction resistance range of the original design, the holding member 12 is hermetically connected to the first housing 2 so that the air entering the aerosol generating device can enter the main body assembly 1 more concentratedly through the air guiding channel 121.

[0048] Among them, the holding member 12 can be hermetically connected to the first housing 2 by interference fit between them.

[0049] In some embodiments of the present application, the holding member 12 includes a holding wall 122 and an annular rib 123 integrally formed with the holding wall 122 and surrounding the outer surface of the holding wall 122. The annular rib 123 is in interference fit with the first housing 2, so as to provide a seal between the outer surface of the holding wall 122 and the inner surface of the first housing 2. And when the main body module 1 and the first housing 2 are combined, the holding wall 122 and the annular rib 123 can remain relatively stationary.

[0050] Since at least a part of the air flow detector 13 is disposed in the holder 12, in order to prevent the holder 12 from undergoing large elastic deformation during the interference fit between the holder 12 and the first housing 2, thereby squeezing the air flow detector 13 or squeezing the circuit board 15 that holds the air flow detector 13, the holding wall 122 can be made of a rigid material, whose hardness is greater than that of silica gel and rubber, to protect the air flow detector 13 and prevent the circuit board 15 from deforming or being broken. For example, the rigid material may include: PAEK-based materials, PI materials or PBI materials. Among them, PAEK-based materials include PEEK, PEKK, PEKEKK or PEK materials. The annular rib 123 can be made of the same material as the holding wall 122. Among them, integrally molding includes integrally injection molding, secondary injection molding or insert injection molding, etc. The annular rib 123 can have one. In order to increase the sealing performance, the annular rib 123 can also have multiple ribs. In the embodiments as shown in Figure 4 and Figure 5 the embodiment shown, the annular rib 123 has three ribs.

[0051] It should be noted that the annulus formed by the annular rib 123 is a closed annulus. In the embodiments as shown in Figure 4 and 5 the embodiment shown, at least one annular rib 123 completely surrounds the air flow detector 13 in one circle or surrounds the air flow detector 13 by 360°.

[0052] Please refer to Figure 2 and Figure 3 , the first receiving cavity 21 in the first housing 2 extends longitudinally. The proximal end of the first housing 2 is open in the longitudinal direction, and the distal end of the first housing 2 in the longitudinal direction has a bottom wall 23. Therefore, at least a part of the main body module 1 can only enter the first receiving cavity 21 through the open mouth at the proximal end of the first housing 2 in the longitudinal direction for holding.

[0053] Please refer to Figure 1 and Figure 2 , the aerosol generating device further includes a mouthpiece 16 having an air inlet 161. The air inlet 161 is in air guiding communication with the atomization assembly 11. The mouthpiece 16 is exposed outside the first housing 2 for the user to hold in the mouth. The user sucks the aerosol generated by the atomization assembly 11 by holding the mouthpiece 16 in the mouth.

[0054] In order for the aerosol generating device to have a good appearance, it is necessary to make the outer shell of the aerosol generating device have good consistency. The first housing 2 is a part of the outer shell of the aerosol generating device. In some embodiments of the present application, the distance between the proximal end and the distal end of the first housing 2 is greater than 2 mm, that is, the longitudinal length of the first housing is greater than 2 mm, or the longitudinal depth of the first receiving cavity 21 is greater than 2 mm, preferably greater than 4 mm.

[0055] After the main body module 1 is combined with the first housing 2, the bottom wall 23 of the first housing 2 supports the holder 12. Therefore, after the holder 12 enters the first receiving cavity 21 from the proximal open end of the first housing 2, it needs to slide along the side wall 24 of the first housing 2 by at least 2 mm and then be supported by the bottom wall 23 of the first housing 2. During this process, the annular rib 123 also needs to slide along the side wall 24 of the first housing 2 by at least 2 mm. And since the holder 12 needs to be sealingly connected to the side wall 24 of the first housing 2, there is a relatively large frictional force when the holder 12 slides along the side wall 24 of the first housing 2. The annular rib 123 is integrally formed with the holding wall 122, so that the annular rib 123 can always remain relatively stationary with respect to the holding wall 122. When the holder 12 slides to a preset position, the annular rib 123 can make the holder 12 and the first housing 2 be sealingly connected at the preset position, so that the air entering the aerosol generating device can enter the main body module 1 more concentratedly during suction, enabling the airflow detector 13 to reach its preset detection accuracy.

[0056] In one embodiment, the minimum distance between the annular rib 123 and the proximal end of the first housing 2 is greater than 2 mm.

[0057] In one embodiment, the holding wall 122 of the holder 12 has a relatively small longitudinal length, and the longitudinal length of the holding wall 122 of the holder 12 is less than the longitudinal depth of the first receiving cavity 21, so that the holder 12 can be completely held in the first receiving cavity 21 and be completely blocked by the first housing 2 and thus hidden. Further, the distance between the proximal end of the holder 12 and the proximal end of the first housing 2 is greater than 2 mm.

[0058] In one embodiment, reference may be made to Figures 1-3 , the mouthpiece 16 is a component of the main body module 1, so that the mouthpiece 16, the atomization assembly 11, the airflow detector 13 and the holder 12 can be combined with the first housing 2 as a whole. Among them, the main body module 1 may further include a second housing 17. The second housing 17 is a component of the outer shell of the aerosol generating device. The mouthpiece 16 is connected to the second housing 17 or integrally formed with the second housing 17. In one example, the second housing 17 may be a plate-like structure extending transversely and capable of blocking the proximal open end of the first housing 2. In one example, reference may be made to Figure 5 , the second housing 17 has a second receiving cavity, and the proximal end of the atomization assembly 11 is located in the second receiving cavity and is thus surrounded and blocked by the second housing 17.

[0059] In some embodiments of the present application, after the main body module 1 and the first housing 2 are combined, the first housing 2 and the second housing 17 are connected to each other. To make the outer shell have good consistency, it is preferred that the longitudinal length of the first housing 2 is greater than the longitudinal length of the second housing 17, and the longitudinal depth of the first receiving cavity 21 is greater than the longitudinal depth of the second receiving cavity.

[0060] In the embodiments as Figure 3 and Figure 5 shown, the proximal end of the atomization assembly 11 is connected to the second housing 17, the distal end is connected to the holding member 12, the holding member is spaced from the second housing, and the middle region of the atomization assembly 11 is located outside the second housing 17 and the holding member 12. Please refer to Figure 5 , the middle region and the distal end of the atomization assembly 11 are received in the first receiving cavity 21. Preferably, the middle region of the atomization assembly 11 is in direct contact with the inner wall of the first housing 2. Specifically, a part of the cup body 111 of the atomization assembly 11 is in direct contact with the second housing 17. After the main body module 1 and the first housing 2 are combined, a part of the cup body 111 of the atomization assembly 11 can be in direct contact with the first housing 2, which helps to reduce the lateral dimension of the first receiving cavity 21, so as to be able to reduce the lateral dimensions of the first housing 2 and the second housing 17, and helps to meet the development needs of the miniaturization of the aerosol generating device.

[0061] In the embodiments as Figure 5 shown, the first housing 2 includes a first inner shell 25 and a first outer shell 26. The first inner shell 25 includes a first part and a second part. The first outer shell 26 is disposed to cover the outside of the first part, and the second part is adjacent to the proximal end of the first housing 2. The second housing 17 includes a second inner shell 171 and a second outer shell 172. The second outer shell 172 includes a third part and a fourth part. The second inner shell 171 is disposed to cover the inside of the third part.

[0062] After the main body module 1 and the first housing 2 are combined, the second part of the first inner shell 25 overlaps with the fourth part of the second outer shell 26 and the second part and the fourth part are interference-fitted, so that the main body module 1 can be stably connected to the first housing 2. And the end of the first outer shell 26 supports the end of the second outer shell 172. Among them, the second part and the fourth part can be interference-fitted by an interference fit manner. For example, the second part and / or the fourth part are provided with ribs, and the second part and the fourth part achieve interference by the ribs.

[0063] Preferably, the thickness of the first housing 2 is the same as the thickness of the second housing 17.

[0064] In one embodiment, reference can be made to Figure 3 and Figure 5, the air inlet hole 22 is opened on the bottom wall 23 of the first housing 2. The holding member 12 further includes a bottom cover 124. At least a part of the air guiding channel 123 is defined by the bottom cover 124. The bottom wall 23 of the first housing 2 supports the bottom cover 124 of the holding member 12, and the air inlet hole 22 is aligned with the air guiding channel 121. In the embodiments as shown in Figure 3 and Figure 5 , the aerosol generating device further includes a shielding piece 3. The shielding piece 3 is removably disposed outside the bottom wall 23 of the first housing 2 for shielding the air inlet hole 22. Of course, when a charging interface 27 is also opened on the bottom wall 23, the shielding piece 3 can also shield the charging interface 27. It should be noted that the shielding piece 3 is optional rather than essential.

[0065] In one embodiment, the main body module 1 further includes a circuit board 15. The atomization component 11 and the air flow detector 13 are both electrically connected to the circuit board 15. Among them, there is a sealing cavity 18 that is in fluid communication with the atomization component 11 and the air guiding channel 121 between the atomization component 11 and the circuit board 15. The air flow detector 13 is disposed in the sealing cavity 18.

[0066] As an example, please refer to Figure 2 and Figure 5 , the circuit board 15 is disposed horizontally, and the air flow detector 13 is mounted on the circuit board 15. The holding member 12 supports the air flow detector 13 by supporting the circuit board 15. More specifically, the circuit board 15 is held in the holding member 12. The holding wall 122 of the holding member 12 is located outside the circuit board 15. The bottom cover 124 of the holding member 12 may have a supporting portion 125, and the supporting portion 125 supports the circuit board 15. The bottom cover 124 of the holding member 12 may have a fastening portion 126, and the fastening portion 126 is fastened to the circuit board 15 to prevent the circuit board 15 from withdrawing from the holding member 12. The air flow detector 13 may be located between the atomization component 11 and the circuit board 15, or the circuit board 15 may be located between the bottom cover 124 of the holding member 12 and the air flow detector 13.

[0067] As an example, please refer to Figure 2 and Figure 5 , the atomization component 11 further includes a sealing plug 113. The sealing plug 113 is made of a flexible material, such as made of silica gel. The sealing plug 113 includes a base body 1131 and an annular wall 1133. The base body 1131 is press-fitted in the cup body 111 and is in sealing connection with the cup body 111, thereby sealing the distal end of the storage cavity 112 to prevent the aerosolizable material in the storage cavity 112 from leaking from the distal end of the cup body 111. The annular wall 1133 extends outside the cup body 111 and is in sealing connection with the circuit board 15. The sealing cavity 18 is located inside the annular wall 1133. The inner wall of the annular wall 1133 may define at least a partial circumferential boundary of the sealing cavity 18. In the embodiments as shown in Figure 5In the illustrated embodiment, the circuit board 15 longitudinally supports the annular wall 1133.

[0068] Furthermore, reference may be made to Figure 5 , the base body 1131 is held inside the cup body 111, the annular wall 1133 is held inside the holding wall 122, the sealing plug 113 further includes a flange 1132, the flange 1132 is located between the base body 1131 and the annular wall 1133, and the flange 1132 is clamped between the holding wall 122 and the cup body 111, and is in sealing contact with the inner wall of the first housing 2, which is conducive to preventing air from flowing between the main body module 1 in the first receiving cavity 21 and the inner wall of the first housing 2. The flange 1132 can assist the annular rib 123 to make a sealing connection between the main body module 1 and the first housing 2. And because the base body 1131 and the annular wall 1133 of the sealing plug 113 are respectively arranged inside the cup body 111 and the holding wall 122, and the flange 1132 is clamped between the holding wall 122 and the cup body 111, during the combination of the main body module 1 and the first housing 2, it is possible to prevent the flange 1132 from deviating relative to the holder 12.

[0069] In one embodiment, reference may be made to Figure 5 , the circuit board 15 has a hollow flexible member 19 correspondingly arranged with the sealing cavity 18, and the hollow flexible member 19 can be made of silica gel. A convex column 127 is provided on the bottom cover 124 of the holder 12, the air guide channel 121 is arranged in the convex column 127, at least a part of the convex column 127 is press-fitted into the hollow flexible member 19, and the hollow flexible member 19 is used to make the air guide channel 121 and the sealing cavity 18 in sealing air communication.

[0070] In one embodiment, reference may be made to Figure 2 , Figure 3 and Figure 5 , the main body module 1 further includes a power supply assembly 14, the power supply assembly 14 can be electrically connected to both the atomization assembly 11 and the air flow detector 13 through the circuit board 15 to provide power for the atomization of the aerosolizable material by the atomization assembly 11 and the operation of the air flow detector 13. The holder 12 connects the power supply assembly 14 and the atomization assembly 11, so that the power supply assembly 14, the atomization assembly 11, the air flow detector 13 and the holder 12 can be combined with the first housing 2 as a whole.

[0071] In such as Figure 2 , Figure 3 and Figure 5In the illustrated embodiment, the power supply assembly 14 and the atomization assembly 11 are arranged side by side. The distal ends of the power supply assembly 14 and the atomization assembly 11 are held in the holder 12 and surrounded by the retaining wall 122. The proximal ends of the power supply assembly 14 and the atomization assembly 11 are held in the second receiving cavity and surrounded by the second housing 17. In one example, the intermediate regions of the power supply assembly 14 and the atomization assembly 11 are located in the first receiving cavity 21 and are both in contact with the inner wall of the first housing 2.

[0072] More specifically, the power supply assembly 14 includes a battery 141, and the battery 141 can be any suitable battery, such as a rechargeable battery or a disposable battery. The power supply assembly 14 further includes a bracket 142 for holding the battery 141. During the assembly process, the power supply assembly 14 and the atomization assembly 11 can be arranged side by side first, and then the power supply assembly 14 and the atomization assembly 11 can be bundled with a PI film or tape to make them a preliminary whole. Then, the proximal end of the whole is received in the second receiving cavity, and the distal end of the whole is received in the holder 12 and connected by the retaining wall 122. Finally, the first housing 2 is combined.

[0073] Please refer to Figures 1-5 , an embodiment of the present application provides an aerosol generating device, which includes:

[0074] A first housing 2 having a first receiving cavity 21 therein, and an air inlet hole 22 is formed in the first housing 2; and

[0075] An atomization assembly 11 for atomizing an aerosolizable material to generate an aerosol;

[0076] An air flow detector 13 for sensing changes in the air flow inside the aerosol generating device;

[0077] A holder 12 for supporting the air flow detector 13, and the holder 12 is arranged in the first receiving cavity 21;

[0078] Wherein, a gas guiding channel 121 is formed in the holder 12, and the air inlet hole 22 is in fluid communication with the air flow detector 13 through the gas guiding channel 121, and the outer surface of the holder 12 is in interference fit with the inner surface of the first housing 2, so as to provide a seal therebetween to guide the air entering from the air inlet hole 22 to flow through the air flow detector 13 only through the gas guiding channel 121.

[0079] In this embodiment, it is optional rather than necessary to connect the holder 12 to the atomization assembly 11, and it is optional rather than necessary to arrange the air flow detector 13 adjacent to the atomization assembly 11.

[0080] It should be noted that the description and drawings of the present application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Further, for those of ordinary skill in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications shall fall within the protection scope of the appended claims of the present application.

Claims

1. An aerosol generating device, characterized in that, Comprising: A main body module, including an atomization component, a holder, and an air flow detector at least partially disposed in the holder. The holder includes a holding wall connecting the atomization component and an annular rib integrally formed with the holding wall and surrounding the outer surface of the holding wall. An air guiding channel is formed in the holder; And A first housing having a first receiving cavity therein. The proximal end of the first housing in the longitudinal direction is open for the main body module to enter the first receiving cavity. The distal end of the first housing in the longitudinal direction has a bottom wall for supporting the holder. An air inlet hole is formed in the first housing, and the air inlet hole fluidly communicates the air flow detector and the atomization component through the air guiding channel; Wherein, the annular rib is in interference fit with the first housing, so as to provide a seal between the outer surface of the holding wall and the inner surface of the first housing.

2. The aerosol generating device according to claim 1, characterized in that, The annular rib has one or more, and the minimum distance between the annular rib and the proximal end of the first housing is greater than 2 mm; or The distance between the proximal end of the holder and the proximal end of the first housing is greater than 2 mm.

3. The aerosol generating device according to claim 1, wherein, The main body module further includes a mouthpiece having an air suction port and a second housing connecting the first housing and the mouthpiece. The atomization component is fluidly communicated with the air suction port, and the proximal end of the atomization component is connected to the second housing; A second receiving cavity is formed in the second housing, and the proximal end of the atomization component is held in the second receiving cavity. The longitudinal depth of the first receiving cavity is greater than the longitudinal depth of the second receiving cavity; or The second housing is a plate-like structure extending transversely for shielding the open proximal end of the first housing.

4. The aerosol generating device according to claim 3, wherein The holder is spaced from the second housing. The proximal end of the atomization component is connected to the second housing, the distal end of the atomization component is connected to the holder, and the middle region of the atomization component contacts the inner wall of the first housing.

5. The aerosol generating device according to claim 1, characterized in that, The main body module further includes a circuit board. There is a sealed cavity fluidly communicating with the atomization component and the air guiding channel between the atomization component and the circuit board. The air flow detector is disposed in the sealed cavity and is mounted on the circuit board.

6. The aerosol generating device according to claim 5, characterized in that, A hollow flexible member corresponding to the sealed cavity is formed on the circuit board. The holder further includes a bottom cover for supporting the circuit board and a convex post disposed on the bottom cover. The air guiding channel is formed in the convex post, and at least a part of the convex post is in interference fit within the hollow flexible member.

7. The aerosol generating device according to claim 5, characterized in that, The atomization component includes a sealing plug and a cup body having a storage cavity therein. The sealing plug includes a base body and an annular wall. The base body is disposed in the cup body in an interference fit and is sealingly connected to the cup body to seal the distal end of the storage cavity. The annular wall is located outside the cup body and is sealingly connected to the circuit board. The sealed cavity is located inside the annular wall.

8. The aerosol generating device according to claim 7, characterized in that, The substrate is held inside the cup body, the annular wall is held inside the holding wall, and the sealing plug further includes a flange located between the substrate and the annular wall. The flange is clamped between the holding wall and the cup body and is in sealing contact with the inner wall of the first housing.

9. The aerosol generating device according to claim 1, characterized in that, The main body module further includes a power supply assembly arranged in parallel with the atomization assembly, and both the atomization assembly and the air flow detector are electrically connected to the power supply assembly; The distal ends of the power supply assembly and the atomization assembly are held in the holder and surrounded by the holding wall.

10. An aerosol generating device, characterized in that, Comprising: A first housing having a first receiving cavity therein, and an air inlet hole is formed in the first housing; And An atomization assembly for atomizing an aerosolizable material to generate an aerosol; An air flow detector for sensing a change in the air flow inside the aerosol generating device; A holder for supporting the air flow detector, and the holder is arranged in the first receiving cavity; Wherein, a gas guiding channel is formed in the holder, the air inlet hole is in fluid communication with the air flow detector through the gas guiding channel, and the outer surface of the holder is in interference fit with the inner surface of the first housing, so as to provide a seal therebetween to guide the air entering from the air inlet hole to only flow through the air flow detector from the gas guiding channel.

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