WO2024050732A1

WO2024050732A1 - Electronic atomization device

Info

Publication number: WO2024050732A1
Application number: PCT/CN2022/117639
Authority: WO
Inventors: 廖彩威; 汪新宇
Original assignee: 海南摩尔兄弟科技有限公司
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2024-03-14

Abstract

Disclosed in the present application is an electronic atomization device. The electronic atomization device comprises: a top cover, which is provided with a cap structure; a support, which forms an atomization cavity with the top cover and is provided with a starting air passage, the cap structure covering one end of the starting air passage, and a gap in communication with the atomization cavity being formed between the cap structure and a side wall of the starting air passage; and a pneumatic induction member, which is in communication with the other end of the starting air passage, wherein the pneumatic induction member is in communication with the atomization cavity by means of the starting air passage and the gap. In this way, in the electronic atomization device provided by the present application, aerosol in the atomization cavity can be effectively prevented from entering the starting air passage due to backflow or splashing, thereby reducing the risk of the starting air passage being blocked, and effectively improving the reliability of the pneumatic induction member.

Description

An electronic atomization device

【Technical field】

The present application relates to the field of atomization technology, and in particular to an electronic atomization device.

【Background technique】

The electronic atomization device includes an atomizer and a host. The host supplies power to the atomizer. The atomizer is used to atomize the aerosol matrix stored in it to generate an inhalable aerosol.

In existing electronic atomization devices, after long-term use, a large amount of condensate often accumulates in the starting airway of the microphone, causing difficulty in starting the microphone or self-starting (spontaneous combustion), making the electronic atomizing device unable to function normally. Work.

[Content of the invention]

This application mainly provides an electronic atomization device to solve the problem of abnormal starting due to accumulation of condensate in the starting airway of the electronic atomizing device.

In order to solve the above technical problems, one technical solution adopted by this application is to provide an electronic atomization device. The electronic atomization device includes: a top cover, which is provided with a cap structure; a bracket, which forms an atomization chamber with the top cover, and is provided with a starting airway, and the cap structure covers one end of the starting airway, And the cap structure and the side wall of the starting airway form a gap that communicates with the atomization chamber; the pneumatic sensing component is connected to the other end of the starting airway; wherein the pneumatic sensing component passes through the The activated airway and the gap communicate with the atomization chamber.

In some embodiments, the cap structure includes a top wall and an annular wall, the annular wall is connected to the top wall, the top wall covers a port of the starting airway, and the annular wall is connected to the starting airway. The gap is formed between the side walls.

In some embodiments, the cap structure includes an annular wall, a side wall of the starting airway is provided with a port connected to the atomization chamber, and the annular wall covers the port of the starting airway and is connected with the starting airway. The side walls of the airway are formed with the gaps.

In some embodiments, the electronic atomization device further includes an atomization core, the atomization core is connected to the top cover, and the starting airway is disposed in an offset position relative to the atomization core.

In some embodiments, the bracket includes a base, the atomization chamber is formed between the base and the top cover, the base includes a base and a surrounding wall, the surrounding wall surrounds the base Set, the starting airway is arranged on the surrounding wall; or

The base also includes an airway tube connected to the base, and the airway tube is provided with the activation airway.

In some embodiments, the base is formed with a liquid collecting chamber, and a port through which the starting airway communicates with the atomization chamber is higher than the liquid collecting chamber.

In some embodiments, an air inlet hole is provided on the base, and the air inlet hole is offset from the starting airway and is arranged corresponding to the atomization core.

In some embodiments, the bracket includes a base and a mounting bracket disposed on one side of the base. The base is provided with the starting air channel, and the mounting frame is also provided with a connecting frame that communicates with the starting air channel. The pneumatic sensing element communicates with the starting airway through the anti-backflow airway.

In some embodiments, the anti-backflow airway is a Tesla valve, and the one-way flow direction defined by the Tesla valve is consistent with the direction of the starting airway from the atomization chamber to the pneumatic sensing member. The direction of guidance is opposite.

In some embodiments, the mounting bracket is further provided with a pressure relief airway. One end of the pressure relief airway is connected to an end of the anti-backflow airway away from the starting airway, and the other end of the pressure relief airway is connected to an end of the anti-backflow airway away from the starting airway. Connected to the atmosphere.

In some embodiments, the pressure relief airway includes a capillary section and a pressure relief hole section, the capillary section is connected between the backflow prevention airway and the pressure relief hole section, and the pressure relief hole section is also connected to atmosphere.

In some embodiments, the electronic atomization device further includes a seal, the mounting bracket is provided with an accommodating groove, and the anti-backflow airway and the pressure relief airway are provided on the bottom wall of the accommodating groove, so The sealing member has an interference fit with the accommodating groove and covers the anti-backflow airway and the pressure relief airway;

Wherein, the sealing member is provided with a through hole, the through hole is connected to an end of the anti-backflow airway away from the starting airway, and the pneumatic sensing element is arranged on an end of the sealing member away from the anti-backflow airway. One side is connected to the anti-backflow airway through the through hole.

In some embodiments, the starting air channel is connected to the accommodating groove, the port of the anti-backflow air channel is spaced apart from the port of the starting air channel, and the bottom wall of the accommodating groove is also formed with a As for the liquid accumulation tank of the backflow prevention airway, the port of the starting airway is also connected to the liquid accumulation tank.

In some embodiments, the electronic atomization device further includes a control device, the control device is connected to the mounting bracket and is pressed against the seal, and the pneumatic sensing element is electrically connected to the control device away from the On one side of the sealing member, the control device is provided with a through hole, the through hole is connected to the through hole, and the pneumatic sensing member is connected to the anti-backflow air through the through hole and the through hole. road.

In some embodiments, the electronic atomization device further includes:

liquid storage tank;

The bracket includes a base and is covered at one end of the liquid storage tank, and the atomization chamber is formed between the bracket and the top cover;

A casing that is sleeved outside the liquid storage tank and the base. The casing is provided with a first air inlet, or the casing and the liquid storage tank cooperate to form a first air inlet;

Wherein, the base is provided with a second air inlet connected to the atomization chamber, the housing and the base cooperate to form an air inlet channel, or the housing, the liquid storage bin and the base The seat is formed with an air inlet channel, and the air inlet channel communicates with the first air inlet hole and the second air inlet hole;

The air inlet passage includes at least two first air ducts, and a convex structure is provided at the junction of two adjacent first air ducts. The convex structure is used to divert air from the first air inlet. The airflow is diverted to the first air passages on both sides.

In some embodiments, the protruding structures are arc structures, triangular structures and spherical structures.

In some embodiments, the outer wall surface of the arc-shaped structure facing the first air inlet is a circular arc surface, and both sides of the circular arc surface are respectively connected to the sides of two adjacent first air passages. Wall surface.

In some embodiments, the radius of the arc surface is greater than or equal to 0.5 mm and less than or equal to 3.0 mm.

In some embodiments, the symmetry plane of the arc surface faces the center of the first air inlet.

In some embodiments, the cross-sectional area of the first air passage gradually decreases along a flow direction from the first air inlet to the second air inlet.

In some embodiments, the air inlet channel further includes a second air channel, the second air inlet hole is connected to the second air channel, and the air inlet end of the second air channel is connected to the first air channel. The air outlet end of the second air channel is connected, and the cross-sectional area of the air inlet end of the second air channel is greater than the cross-sectional area of the air outlet end of the first air channel, and the cross-sectional area is along the first air inlet hole toward the third air channel. The cross-sectional area of the second air inlet in the flow direction.

In some embodiments, the ratio of the cross-sectional area of the air inlet end of the second air channel to the cross-sectional area of the air outlet end of the first air channel is greater than or equal to 2.0.

In some embodiments, the protruding structure is disposed on the base, and the protruding structure is disposed facing the first air inlet; the housing and the base cooperate to form the first air inlet. Air channels, the first air channels are arranged in an arc along the circumferential direction of the atomizer, and each of the first air channels is arranged around the second air inlet; the base is also provided with a third Two air channels, the second air channel traverses the base, and each of the first air channels is connected to the second air channel.

In some embodiments, the number of the first air inlets is multiple, the protruding structures are arranged in one-to-one correspondence with the first air inlets, and a plurality of the first air channels are arranged along the atomization The circumference of the device is in the shape of a connected ring.

In some embodiments, the outer shell and the liquid storage tank cooperate to form the first air channel, and the protruding structure is provided on the liquid storage tank or the outer shell.

In some embodiments, the air inlet channel further includes an air inlet section, the housing and the liquid storage tank further cooperate to form the air inlet section, and the air inlet section is disposed between the first air inlet hole and the first air inlet hole. Between the at least two first air passages, the protruding structure faces the air inlet section.

In some embodiments, the cross-sectional area of the first air passage is larger than the cross-sectional area of the air inlet section.

In some embodiments, the air inlet channel further includes an annular air channel formed between the base and the housing and a second air channel traversing the base, the annular air channel being along the The electronic atomization device is arranged circumferentially, each of the first air channels is connected to the annular air channel, the second air channel is connected to the annular air channel, and the second air inlet hole is connected to the second air channel. road.

In some embodiments, the first air inlet hole is an oval hole or a racetrack-shaped hole.

The beneficial effects of this application are: different from the prior art, this application discloses an electronic atomization device. By providing a cap structure on the top cover, the port of the activating airway on the bracket is blocked, and the cap structure and the side wall of the activating airway form a gap that communicates with the atomization chamber, that is, the port of the activating airway is connected through the gap. The atomization chamber prevents the aerosol in the atomization chamber from splashing or backflowing into the starting airway. While ensuring that the pneumatic sensing part can be started smoothly, it can effectively block the backflow of aerosol, and the condensate in the atomization chamber is also Since the cap structure covers the starting airway and cannot flow into the starting airway, the risk of blockage of the starting airway can be effectively reduced and the reliability of the pneumatic sensing component is improved.

[Picture description]

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts, wherein:

Figure 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided by this application;

Figure 2 is a schematic cross-sectional structural diagram of the electronic atomization device shown in Figure 1 along AA direction;

Figure 3 is a schematic cross-sectional structural view of the electronic atomization device shown in Figure 1 along the direction BB;

Figure 4 is an exploded structural schematic diagram of each component in the housing of the electronic atomizer device shown in Figure 1;

Figure 5 is a schematic structural diagram of the top cover of the electronic atomization device shown in Figure 3;

Figure 6 is a schematic structural diagram of the bracket in the electronic atomization device shown in Figure 3;

Figure 7 is a schematic front structural view of the bracket shown in Figure 6;

Figure 8 is a schematic cross-sectional structural view of the electronic atomization device shown in Figure 1 along the CC direction;

Figure 9 is a schematic structural diagram of another embodiment of the electronic atomization device provided by the present application;

Fig. 10 is a schematic structural diagram of the electronic atomization device shown in Fig. 9 with its shell separated.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of this application.

The terms “first”, “second” and “third” in the embodiments of this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. 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 also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to such processes, methods, products or devices.

Reference herein to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

This application provides an electronic atomization device 100. Refer to Figures 1 to 2. Figure 1 is a schematic structural diagram of an embodiment of the electronic atomization device provided by this application. Figure 2 is a view along AA of the electronic atomization device shown in Figure 1. Schematic diagram of cross-sectional structure.

The electronic atomization device 100 may include an atomizer and a host machine, where the atomizer and the host machine are detachably connected, that is, the atomizer is replaceable, where the atomizer is used to store and atomize the aerosol base, and the host machine Used to power the atomizer.

The electronic atomization device 100 can also be a disposable device, that is, the aerosol matrix carried by the electronic atomization device 100 can be discarded after use; it can also include an atomizer and a host, and the atomizer and the host cannot be used. disassembly.

In this embodiment, the electronic atomization device 100 includes a liquid storage tank 10, a top cover 20, an atomization core 30, a bracket 40, a pneumatic sensing component 50, an electric core 60, a control component 70, a housing 80 and an electrode 90. The top cover 20 It is connected to the liquid storage tank 10 and forms a liquid storage chamber 12. The atomization core 30 is arranged on the top cover 20. One end of the bracket 40 is connected to the end of the liquid storage tank 10 and forms an atomization chamber 22 between the bracket 40 and the top cover 20. , the electrode 90 is connected to the bracket 40 and electrically connected to the atomizing core 30. The electrode 90 can be crimped to the atomizing core 30 on the top cover 20, or the atomizing core 30 can be crimped to the top cover 20 by the bracket 40. Pneumatic The sensing component 50, the electric core 60 and the control device 70 are all arranged on the bracket 40, and the electrode 90, the pneumatic sensing component 50 and the electric core 60 are all electrically connected to the control device 70. The pneumatic sensing component 50 is used to detect the electronic atomization device 100. The usage status is to send out a starting signal when the electronic atomization device 100 is used, and the control device 70 supplies power to the atomizing core 30 based on the starting signal; the housing 80 is provided in the liquid storage tank 10, the top cover 20, the atomizing core 30, and the bracket. 40. The outer sides of the pneumatic sensing component 50, battery core 60, control component 70 and electrode 90 are used for decoration and protection to increase the beauty, waterproof and dustproof of the electronic atomization device 100.

In this embodiment, the bracket 40 is an integrated structural member, which includes a base 42 and a mounting frame 44. The base 42 is connected to the end of the liquid storage tank 10. The mounting frame 44 is mounted with a pneumatic sensing component 50, a battery core 60 and a mounting frame 44. The control device 70 makes the electronic atomization device 100 a disposable device and the atomizer cannot be replaced.

In other embodiments, the bracket 40 can also be a detachable or phase-separable structural member, which includes a detachable or phase-separable base 42 and a mounting bracket 44, which can be composed of the liquid storage tank 10, the top cover 20, and the atomization core. 30. The base 42 and the electrode 90 constitute an atomizer, and the remaining components constitute the main body. The atomizer and the main body are detachably connected, that is, the atomizer in the electronic atomization device 100 is replaceable.

The applicant's long-term observation and data collection of the use of existing products found that in existing atomizers, the starting air passages are mostly close to the atomization chamber or directly facing the atomization surface of the atomization core. As a result, a large amount of aerosol flows back into the starting airway after the suction is stopped. After long-term accumulation, a large amount of condensate is generated in the starting airway, which in turn causes difficulty in starting the pneumatic sensing part or self-starting (spontaneous combustion) phenomenon, making the electronic atomizer unable to It works normally, so it is proposed to improve the electronic atomization device to form the solution of this application.

Referring to FIGS. 1 to 3 in conjunction, FIG. 3 is a schematic cross-sectional structural view of the electronic atomization device shown in FIG. 1 along the BB direction.

In this embodiment, the bracket 40 is provided with a starting air channel 41, and the top cover 20 is provided with a cap structure 21. The cap structure 21 covers one end of the starting air channel 41, and the cap structure 21 is connected to the side wall of the starting air channel 41. A gap 23 is formed that communicates with the atomization chamber 22. The pneumatic sensing member 50 is connected to the other end of the starting airway 41. The pneumatic sensing member 50 is connected to the atomizing chamber 22 through the starting airway 41 and the gap 23 to sense the inside of the atomizing chamber 22. The changing state of the airflow can then send a signal to the control device 70 when the user uses the electronic atomization device 100. The control device 70 controls the battery core 60 to provide power to the atomization core 30, so that the atomization core 30 starts atomization, so that during atomization Aerosol is generated in the chamber 22 .

The pneumatic sensing element 50 can be a microphone, an air pressure sensor or a pneumatic flow rate sensor, etc., which can be used to detect the air flow state of the electronic atomization device 100 to determine whether the electronic atomization device 100 is in use, and to provide timely information to the electronic atomization device. 100 to send electricity.

For example, when the user directly smokes the electronic atomization device 100, it can be detected by the pneumatic sensor 50; or when the user uses the electronic atomizer 100 by smoking through a machine, it can also be detected by the pneumatic sensor 50.

In this application, the starting airway 41 is a hole structure, and the cap structure 21 covers the port of the starting airway 41 so that the port of the starting airway 41 is connected to the atomization chamber 22 through the gap 23 to prevent aerosol splashing in the atomization chamber 22 Or backflow into the starting airway 41, while ensuring that the pneumatic sensing component 50 can be started smoothly, it can effectively block the backflow of aerosol, and the condensate in the atomization chamber 22 is due to the cover of the starting airway 41 by the cap structure 21. It cannot flow into the starting airway 41, thereby effectively reducing the risk of the starting airway 41 being blocked and improving the reliability of the pneumatic sensing component 50.

Specifically, the bracket 40 includes a base 42. The base 42 covers one end of the liquid storage tank 10. An atomization chamber 22 is formed between the base 42 and the top cover 20. The base 42 is provided with an air inlet 43 and a starter. The air passage 41 and the air inlet 43 communicate with the outside atmosphere and the atomization chamber 22 to supply air to the atomization chamber 22 .

The start-up air channel 41 and the air inlet hole 43 are arranged in a misaligned manner. In this embodiment, the air inlet hole 43 is arranged corresponding to the atomization core 30, so that air can be efficiently supplied to the atomization surface of the atomization core 30 to improve the atomization effect. ; The starting airway 41 is dislocated relative to the atomizing core 30, that is, the projected areas of the starting airway 41 and the atomizing core 30 along the top cover 20 toward the base 42 do not overlap, so that the starting airway 41 does not have to directly face the mist. The atomization surface of the core 30 is to avoid the high-risk backflow area directly below the atomization surface, further reducing the risk of aerosol splashing or backflow entering the starting airway 41 .

In other embodiments, the projected areas of the starting airway 41 and the atomization core 30 along the direction of the top cover 20 toward the base 42 may overlap.

Referring to Figures 3 to 6 in conjunction, Figure 4 is an exploded structural diagram of each component in the housing of the electronic atomizer device shown in Figure 1; Figure 5 is a structural schematic diagram of the top cover of the electronic atomizer device shown in Figure 3; Figure 6 It is a schematic structural diagram of the bracket in the electronic atomization device shown in Figure 3.

The base 42 includes a base 420 and a surrounding wall 422. The surrounding wall 422 is arranged around the base 420. The starting air channel 41 can be arranged on the surrounding wall 422. The port through which the starting air channel 41 communicates with the atomization chamber 22 can be arranged on the inner side of the surrounding wall 422. Or it is towards the top of the top cover 20 .

In this embodiment, as shown in Figure 6, the base 42 also includes an airway tube 427 connected to the base 420. The airway tube 427 is provided with a starting airway 41. The airway tube 427 is located within the surrounding circle of the surrounding wall 422 and adjacent to The surrounding wall 422 is provided, and the airway tube 427 is further connected to the inner side of the surrounding wall 422, and can be further away from the air inlet 43 to stay away from the high-risk backflow area under the atomization surface.

The base 42 is also formed with a liquid collecting cavity 45 arranged around the air inlet 43. The port of the starting air channel 41 connected to the atomization chamber 22 is higher than the liquid collecting cavity 45 to prevent the condensate formed by the aerosol backflow from entering the starting air along the wall. In the airway 41, the risk of aerosol or condensate entering the starting airway 41 can be further reduced.

A plurality of capillary grooves are also distributed on the wall surface of the liquid collecting chamber 45 to adsorb and collect the condensate formed by the backflow of aerosol.

In this embodiment, as shown in FIGS. 3 and 5 , the cap structure 21 includes a top wall 210 and an annular wall 212 . The annular wall 212 is connected to one side of the top wall 210 and can be semi-encircled or fully encircled. The wall 210 covers one end of the airway tube 427 to cover the port of the activating airway 41. A gap 23 is formed between the annular wall 212 and the side wall of the activating airway 41, that is, between the annular wall 212 and the side wall of the airway tube 427. A gap 23 is formed between them.

The port for activating the airway 41 may also be disposed on the side wall of the airway tube 427, so that the annular wall 212 covers the port for activating the airway 41.

Optionally, the starting air channel 41 is provided on the surrounding wall 422. For example, the port of the starting air channel 41 is provided on the inner side of the surrounding wall 422, then the cap structure 21 can be an annular wall 212, and the annular wall 212 covers the port and is connected with the surrounding wall 422. A gap 23 is formed between the inner sides; or the port of the starting air channel 41 is provided on the top of the surrounding wall 422 toward the top cover 20 , and the cap structure 21 still includes a top wall 210 and an annular wall 212 , where the top wall 210 covers the starting air channel 41 port, a gap 23 is formed between the annular wall 212 and the inner wall surface of the surrounding wall 422 .

It can be understood that when the airway tube 427 is provided with the starting airway 41, the side wall of the starting airway 41 refers to the side wall of the airway tube 427; when the surrounding wall 422 is provided with the starting airway 41, the starting airway 41 The side wall refers to the inner side wall of the surrounding wall 422 .

Referring to FIGS. 4 to 7 in conjunction, FIG. 7 is a schematic front structural view of the bracket shown in FIG. 6 .

The bracket 40 also includes a mounting bracket 44 disposed on one side of the base 42. The base 42 is provided with a starting air channel 41. The mounting frame 44 is also provided with an anti-backflow air channel 46 connected to the starting air channel 41, through which the pneumatic sensing element 50 passes. The anti-backflow airway 46 is connected to the starting airway 41. The anti-backflow airway 46 has a function similar to a one-way valve and is used to prevent aerosol from entering, thereby preventing the aerosol from contacting or the formed condensate from contacting the pneumatic sensing element 50, which can effectively The protection of the pneumatic sensing component 50 is enhanced, and the starting reliability of the pneumatic sensing component 50 is improved.

Among them, the pneumatic sensing component 50, the battery core 60 and the control device 70 are all installed on the mounting bracket 44. The pneumatic sensing component 50 and the control device 70 are arranged between the battery core 60 and the base 42, and the pneumatic sensing component 50 and the battery core are 60 are electrically connected to the control device 70 .

In this embodiment, the anti-backflow airway 46 is a Tesla valve. The Tesla valve is a pore structure that can limit the one-way fluidity of the fluid. The one-way flow direction limited by the Tesla valve is related to the startup The direction of the air passage 41 from the atomization chamber 22 to the pneumatic sensing member 50 is opposite, thereby preventing aerosol and condensate from entering.

Optionally, the anti-backflow airway 46 can also be an airway structure provided with a breathable membrane, so that it only allows gas to pass through but does not allow liquid macromolecules to pass through, which can effectively enhance the protection of the pneumatic sensing element 50 .

Specifically, the mounting bracket 44 is provided with an accommodating slot 440, the anti-backflow air channel 46 is provided at the bottom of the accommodating slot 440, the starting air channel 41 is connected to the accommodating slot 440, and the port of the anti-backflow air channel 46 is connected to the starting air channel. The ports of 41 are arranged at intervals, and the bottom wall of the accommodation tank 440 is also formed with a liquid accumulation tank 47 surrounding the anti-backflow air channel 46. The ports of the starting air channel 41 are connected to the liquid accumulation tank 47, so that even if a liquid accumulation tank 47 is formed in the starting air channel 41 If there is condensate, the condensate can enter the liquid accumulation tank 47 , thereby preventing the condensate from blocking the port of the anti-backflow air passage 46 to ensure the smooth startup of the pneumatic sensing component 50 .

Furthermore, the mounting frame 44 is further provided with a pressure relief airway 48 , which is also provided at the bottom of the accommodation groove 440 . One end of the pressure relief airway 48 is connected to the end of the anti-backflow airway 46 away from the starting airway 41 , the other end of the pressure relief air passage 48 is connected to the atmosphere. The pressure relief air passage 48 is used to anchor the atmospheric pressure to prevent the pneumatic sensing component 50 from being accidentally triggered due to slight changes in the gas state in the atomization chamber 22 .

Due to the environment and state in which the electronic atomization device 100 is located, when the user is not using it, the gas state in the atomization chamber 22 may also change. For example, the electronic atomization device 100 may be damaged due to decay or proximity to high-temperature objects. If the gas state changes but is not used by the user, if the pressure relief airway 48 is not provided, there is a risk that the pneumatic sensing element 50 will be mistakenly triggered.

By setting the pressure relief airway 48 to anchor the atmospheric pressure, when the air pressure in the atomization chamber 22 changes due to non-human factors, the atmospheric pressure sensed through the pressure relief airway 48 will also change, thereby eliminating this possible cause. In case of false triggering, the false triggering rate of the pneumatic sensing element 50 is reduced.

The pressure relief airway 48 includes a capillary section 480 and a pressure relief hole section 482. The capillary section 480 is connected between the backflow prevention airway 46 and the pressure relief hole section 482. The pressure relief hole section 482 is also connected to the atmosphere. The capillary section 480 is used to prevent Water vapor enters the anti-backflow airway 46 .

In other embodiments, the pressure relief air passages 48 may also be non-capillary holes or non-capillary grooves.

Referring to FIGS. 4 and 7 , the electronic atomization device 100 also includes a seal 52 . The anti-backflow air passage 46 and the pressure relief air passage 48 are groove structures provided on the bottom wall of the accommodation groove 440 . The seal 52 and the accommodation groove 440 The interference fit and sealing of the anti-backflow air channel 46 and the pressure relief air channel 48 isolate the anti-backflow air channel 46 and the pressure relief air channel 48 from the liquid accumulation tank 47; the seal 52 is provided with a through hole 520, and the through holes 520 are connected The anti-backflow airway 46 is at one end away from the starting airway 41 , and the pneumatic sensing element 50 is disposed on the side of the seal 52 away from the anti-backflow airway 46 , and communicates with the anti-backflow airway 46 through the through hole 520 .

On the one hand, the sealing member 52 can prevent liquid that may exist in the starting air channel 41 from entering the control device 70 and one side of the battery core 60 , and on the other hand, it can further prevent the liquid from being directed to the pneumatic sensing member 50 .

The control device 70 is connected to the mounting bracket 44 and is pressed against the seal 52 . The pneumatic sensing device 50 is provided on the control device 70 and is electrically connected to the side of the control device 70 away from the seal 52 . The control device 70 is provided with a through hole. , the via hole and the through hole 520 are connected correspondingly, and the pneumatic sensing component 50 is connected to the anti-backflow airway 46 through the via hole and the through hole 520, so that the pneumatic sensing component 50 can transmit signals to the control device 70 more quickly, thereby improving the starting efficiency.

Furthermore, it was also found that existing electronic atomizers have problems such as whistling and excessive noise caused by poor air flow when used by users, causing users to be troubled by noise during use. The electronic atomizer provided by this application The device 100 can also solve this problem.

Referring to FIG. 1 and FIG. 6 to FIG. 8 , FIG. 8 is a schematic cross-sectional structural view of the electronic atomization device shown in FIG. 1 along the CC direction.

In this embodiment, the electronic atomization device 100 is provided with a first air inlet hole 101, a second air inlet hole 102 and an air inlet channel 103. The air inlet channel 103 communicates with the first air inlet hole 101 and the second air inlet hole 102. The second air inlet hole 102 is connected to the atomization chamber 22, and the second air inlet hole 102 is the above-mentioned air inlet hole 43; wherein, the air inlet channel 103 includes at least two first air passages 104, and two adjacent first air passages 104 are connected to the atomization chamber 22. A raised structure 105 is provided at the junction of the channels 104, and the raised structure 105 is used to divert the airflow entering from the first air inlet 101 to the first air channels 104 on both sides.

The first air inlet hole 101 may be provided on the housing 80 , or the housing 80 and the outer wall of the liquid storage tank 10 cooperate to form the first air inlet hole 101 , or the outer wall of the liquid storage tank 10 is provided with the first air inlet hole 101 .

The first air inlet hole 101 may be a round hole, a square hole, or the like.

In this embodiment, the first air inlet hole 101 is an elliptical hole or a racetrack-shaped hole or other similar circular air inlet hole.

In existing technical solutions, due to the size limitation of the electronic atomization device, the first air inlet 101 is often set as a circular air inlet. The cross-sectional area of the circular air inlet is small, which easily results in a large air flow rate during air intake. , resulting in greater noise. After the first air inlet 101 is optimized into a quasi-circular air inlet such as an oval hole or a racetrack-shaped hole, the first air inlet can be significantly enlarged while meeting the structural size constraints of the electronic atomization device 100. The air inlet area of the first air inlet hole 101 can further reduce the flow rate of the first air inlet hole 101 at the entrance position, which can effectively suppress the generation of noise.

In a specific embodiment, after the cross-sectional area of the first air inlet hole 101 is optimized from 0.79 for a circular hole to an oval hole, its cross-sectional area increases to 1.84, which effectively reduces the flow rate at the inlet, and It is also beneficial to increase the air intake volume per unit time.

The second air inlet hole 102 is provided on the base 42, and the air inlet channel 103 communicates with the first air inlet hole 101 and the second air inlet hole 102. The air inlet channel 103 can be formed on the base 42, or can be formed by the base 42 and the second air inlet hole 102. The outer shell 80 is formed in cooperation with each other, or is formed by the outer wall of the liquid storage tank 10 , the base 42 and the inner wall of the outer shell 80 .

The protruding structure 105 relatively protrudes from the inner wall surface of the air inlet channel 103, and can be disposed directly opposite the first air inlet hole 101, or there is a passage between the first air channel 104 and the first air inlet hole 101. The protruding structure 105 is disposed directly on the channel to divert the air flow to the first air channels 104 on both sides of the channel.

In the existing product solutions on the market, there is no protruding structure 105 as in this application in the air inlet channel. Furthermore, due to the large size of the channel at the entrance and inflection point of the air inlet channel, there is no structure to correct and restrict it, so that The airflow at the inlet and inflection point is turbulent, causing serious vortexes, resulting in poor air intake and loud noise.

In this application, by arranging a raised structure 105 at the airway entrance closer to the first air inlet hole 101, the airflow can be smoothly divided into two and enter the first airway 104 on both sides of the raised structure 105 respectively. The convex structure 105 is used to reduce the impact of the incoming gas on the wall at the entrance of the air inlet channel 103, which not only smoothes the air flow, reduces the air flow velocity, reduces the generation of turbulence, but also greatly reduces the noise, making the incoming air flow smoother and smoother. , the noise generated is relatively reduced.

The protruding structure 105 may be an arc-shaped structure, a triangular structure, or a spherical structure. The apex of the arc-shaped structure or the spherical structure is set corresponding to the first air inlet 101 , or the sharp corner of the triangular structure corresponds to the first air inlet 101 It is arranged so that the air flow can be divided into two parts more smoothly, and the impact of the air flow on the protruding structure 105 can be effectively reduced, which can reduce the generation of turbulence and reduce noise.

In this embodiment, the protruding structure 105 is an arc-shaped structure, and the outer wall surface of the arc-shaped structure facing the first air inlet 101 is an arc surface 106. Both sides of the arc surface 106 are respectively connected to two adjacent second air inlet holes. A side wall surface of the airway 104. The arc surface 106 can effectively utilize the unloading force of its shape structure to reduce the impact of the incoming gas on it, so that the air flow can enter the first air passages 104 on both sides more smoothly, thereby effectively reducing the noise and even eliminating it. noise.

The radius of the arc surface 106 is greater than or equal to 0.5mm and less than or equal to 3.0mm. For example, the radius of the arc surface 106 can be 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm or 3.0mm. This size range can enable the airflow to be When the flow is diverted, it passes more smoothly and produces less noise, and it can also avoid interference with other structural dimensions of the electronic atomization device 100 .

In one embodiment, the housing 80 is provided with a first air inlet 101 and the base 42 is provided with a second air inlet 102. At least part of the base 42 is disposed in the housing 80 and cooperates with the housing 80 to form an air inlet channel 103. ; Among them, the protruding structure 105 is provided on the housing 80 or the base 42, which can make the way of forming the air inlet channel 103 and the protruding structure 105 simpler, and the manufacturing process of the corresponding structure is also simpler.

In this embodiment, the protruding structure 105 and the first air channel 104 are both arranged on the base 42. The first air channel 104 is arranged in an arc shape along the circumferential direction of the electronic atomization device 100, and the protruding structure 105 faces the first air channel 104. Air inlet 101 is provided.

Furthermore, the protruding structure 105 is an arc-shaped structure, and the symmetry plane of the arc surface 106 is facing the center of the first air inlet hole 101, so as to divide the air flow more evenly.

The first air channel 104 is a groove structure provided on the outer peripheral wall of the base 42. The shell 80 covers the groove structure. The first air channel 104 is arranged in an arc shape, which can make the extension length of the first air channel 104 longer, and also It is beneficial to reduce turbulence through convolution.

The air inlet channel 103 further includes a second air channel 107. The second air channel 107 is also provided on the base 42. The second air channel 107 traverses the base 42, and the second air inlet hole 102 communicates with the second air channel 107. Each first air channel 104 is arranged around the second air inlet hole 102, and each first air channel 104 is connected to the second air channel 107 to supply air to the second air inlet hole 102 through the second air channel 107.

That is, in this application, the number of the first air inlets 101 may be multiple, and the plurality of first air passages 104 form a connected annular shape around the circumferential direction of the electronic atomization device 100. The first air passages 104 are disposed at the first inlet. between the air hole 101 and the second air channel 107 to prevent the first air inlet hole 101 and the air inlet channel 103 from being blocked.

In this embodiment, the casing 80 is provided with two first air inlets 101. The protruding structures 105 are arranged in one-to-one correspondence with the first air inlets 101. The number of the protruding structures 105 is also two. The first air passage 104 The number is four and they are distributed in pairs on both sides of the convex structure 105. The four first air passages 104 form a connected annular shape around the circumference of the electronic atomization device 100, and one end of the first air passage 104 is connected to the first inlet. The other end of the air hole 101 is connected to one end of the second air channel 107 .

In other embodiments, the number of first air inlets 101 may be four, the number of first air passages 104 may be eight, and the number of second air passages 107 may be two.

In this embodiment, the first air inlet hole 101 and the air inlet channel 103 are located at the same horizontal position, that is, the first air inlet hole 101, the first air channel 104, the protruding structure 105 and the second air channel 107 are all located at the same horizontal position. .

Further, the cross-sectional area of the first air passage 104 gradually decreases along the flow direction from the first air inlet hole 101 to the second air inlet hole 102, that is, the first air passage 104 has a variable cross-section design. The cross-sectional area at the inlet is larger, while the cross-sectional area at the outlet is smaller. By setting a larger cross-sectional area at the entrance of the first air channel 104, the flow velocity after the airflow enters can be effectively reduced and the flow rate can be increased. The size of the vortices formed by the air flow prevents the formation of more small vortices, because small vortices are more likely to be broken. After breaking, the kinetic energy is converted into internal energy to generate noise, and the variable cross-section design of the first air passage 104 can improve the generated noise. The stability of the small vortex reduces the fragmentation ratio of the small vortex, thereby allowing the airflow to flow in the first airway 104 more stably, thereby reducing the air intake noise. That is, the present application further reduces the noise at the entrance of the first airway 104. The generation of small vortices and the reduction of the breakup ratio of small vortices when flowing in the first air passage 104 can significantly reduce intake noise.

The air inlet end of the second air channel 107 is connected with the air outlet end of the first air channel 104. The cross-sectional area of the air inlet end of the second air channel 107 is larger than the cross-sectional area of the air outlet end of the first air channel 104. The cross-sectional area is equal to is the cross-sectional area along the flow direction from the first air inlet 101 to the second air inlet 102, so that when the airflow enters from the first air channel 104 to the second air channel 107, due to the cross-sectional area of the flow mutation, so that the principle of the resistant muffler can be used to further reduce the noise, that is, by forming a resistant muffler at the connection inflection point of the first airway 104 and the second airway 107 to further reduce the noise.

The ratio of the cross-sectional area of the air inlet end of the second air channel 107 to the cross-sectional area of the air outlet end of the first air channel 104 is greater than or equal to 2.0. For example, the ratio of the cross-sectional area of the air inlet end of the second air channel 107 to the cross-sectional area of the first air channel 104 The ratio of the cross-sectional areas of the air outlet can be 2.0, 2.5 or 3.0, etc., that is, the expansion ratio can be 2.0, 2.5 or 3.0, etc., and the first airway 104 adopts a variable cross-section design, which is more conducive to increasing the second airway 107 and The expansion ratio at the inflection point of the first airway 104 connection, where the greater the expansion ratio, the better the sound attenuation effect.

In this embodiment, the outer wall of the base 42 is provided with a groove along the circumferential direction, and the housing 80 covers the groove to form the first air passage 104. The cross-sectional area of the groove is directed toward the second air inlet along the first air inlet hole 101. The flow direction of the hole 102 gradually decreases, and the inner wall surface of the housing 80 is a smooth wall surface, which is more conducive to the formation of the first air passage 104 .

Referring to Figures 9 and 10 in conjunction, Figure 9 is a schematic structural diagram of another embodiment of the electronic atomization device provided by the present application. Figure 10 is a schematic structural diagram of the electronic atomization device shown in Figure 9 with the shell separated.

In another embodiment, the electronic atomization device 200 includes a liquid storage tank 230, a base 240 and a shell 250. The shell 250 is set outside the liquid storage tank 230. The shell 250 is provided with a first air inlet 201, or a first air inlet hole 201. 250 cooperates with the liquid storage tank 230 to form a first air inlet 201; the base 240 is provided with a second air inlet (not shown) connected to the atomization chamber (not shown), and is covered with the liquid storage tank 230. One end; wherein, the outer wall of the outer shell 250 and the liquid storage tank 230 cooperates to form the first air channel 204, and the protruding structure 205 is provided on the liquid storage tank 230 or the outer shell 250.

In this embodiment, the housing 250 and the liquid storage tank 230 cooperate to form a first air inlet 201. The liquid storage tank 230, the base 240 and the housing 250 cooperate to form an air inlet channel 203. The air inlet channel 203 communicates with the first air inlet. 201 and the second air inlet hole, the air inlet channel 203 includes at least two first air channels 204, and a convex structure 205 is provided at the junction of two adjacent first air channels 204.

The protruding structure 205 is provided on the outer wall of the liquid storage tank 230, and the air inlet channel 203 also includes an air inlet section 209. The outer shell 250 and the liquid storage tank 230 also cooperate to form an air inlet section 209, and the air inlet section 209 is provided in the first air inlet section. Between the hole 201 and the at least two first air passages 204, the protruding structure 205 faces the air inlet section 209 so as to guide the air flow through the air inlet section 209 to be diverted to the two first air passages 204 through the protruding structure 205.

Specifically, the outer wall of the liquid storage tank 230 is provided with a groove forming the air inlet section 209 and the first air channel 204, and the inner wall surface of the housing 250 covers the groove to form the air inlet section 209 and the first air channel. 204.

The cross-sectional area of the first air passage 204 is larger than the cross-sectional area of the air inlet section 209. By setting a larger cross-sectional area at the entrance of the first air passage 204, the flow rate of the air after entering can be effectively reduced and the flow rate can be increased. The size of the vortices formed by the air flow prevents the formation of more small vortices, thereby reducing noise.

The air inlet channel 203 also includes an annular air channel 208 formed between the base 240 and the housing 250 and a second air channel 207 traversing the base 240. The annular air channel 208 is arranged along the circumferential direction of the electronic atomization device 200, and each The first air passages 204 are all connected to the annular air passage 208, the second air passages 207 are connected to the annular air passage 208, and the second air inlets 202 are connected to the second air passage 207.

Different from the situation in the prior art, this application discloses an electronic atomization device. By providing a cap structure on the top cover, the port of the activating airway on the bracket is blocked, and the cap structure and the side wall of the activating airway form a gap that communicates with the atomization chamber, that is, the port of the activating airway is connected through the gap. The atomization chamber prevents the aerosol in the atomization chamber from splashing or backflowing into the starting airway. While ensuring that the pneumatic sensing part can be started smoothly, it can effectively block the backflow of aerosol, and the condensate in the atomization chamber is also Since the cap structure covers the starting airway and cannot flow into the starting airway, the risk of blockage of the starting airway can be effectively reduced and the reliability of the pneumatic sensing component is improved.

The above are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies fields are equally included in the scope of patent protection of this application.

Claims

An electronic atomization device, characterized by including:

The top cover is provided with a cap structure;

The bracket forms an atomization chamber with the top cover and is provided with a starting airway. The cap structure covers one end of the starting airway, and the cap structure is formed with the side wall of the starting airway. There is a gap connecting the atomization chamber;

A pneumatic sensing component connected to the other end of the starting airway;

Wherein, the pneumatic sensing element communicates with the atomization chamber through the starting airway and the gap.
The electronic atomization device according to claim 1, wherein the cap structure includes a top wall and a ring wall, the ring wall is connected to the top wall, and the top wall covers the port of the starting airway, The gap is formed between the annular wall and the side wall of the starting airway.
The electronic atomization device according to claim 1, wherein the cap structure includes an annular wall, a side wall of the starting airway is provided with a port connected to the atomization chamber, and the annular wall covers the The port of the activation airway forms the gap with the side wall of the activation airway.
The electronic atomization device according to claim 1, characterized in that the electronic atomization device further includes an atomization core, the atomization core is connected to the top cover, and the starting airway is opposite to the atomization core. Core dislocation setting.
The electronic atomization device according to claim 4, wherein the bracket includes a base, the atomization chamber is formed between the base and the top cover, and the base includes a base and an enclosure. A wall, the surrounding wall is provided around the base, and the starting airway is provided on the surrounding wall; or

The base also includes an airway tube connected to the base, and the airway tube is provided with the activation airway.
The electronic atomization device according to claim 5, wherein the base is formed with a liquid collecting chamber, and the port through which the starting airway communicates with the atomizing chamber is higher than the liquid collecting chamber.
The electronic atomization device according to claim 5, characterized in that a second air inlet hole is provided on the base, the second air inlet hole is disposed in an offset position with the starting airway and corresponds to the atomization Core settings.
The electronic atomization device according to claim 1, wherein the bracket includes a base and a mounting bracket provided on one side of the base, the base is provided with the starting airway, and the mounting bracket The frame is also provided with an anti-backflow airway connected to the starting airway, and the pneumatic sensing component is connected to the starting airway through the anti-backflow airway.
The electronic atomization device according to claim 8, characterized in that the backflow prevention airway is a Tesla valve, and the one-way flow direction defined by the Tesla valve is consistent with the starting airway from the The atomizing chamber is opposite to the guiding direction of the pneumatic sensing member.
The electronic atomization device according to claim 8, characterized in that the mounting frame is further provided with a pressure relief airway, one end of the pressure relief airway is connected to the anti-backflow airway away from the starting airway. One end and the other end of the pressure relief airway are connected to the atmosphere.
The electronic atomization device according to claim 10, characterized in that the pressure relief airway includes a capillary section and a pressure relief hole section, and the capillary section is connected between the backflow prevention airway and the pressure relief hole section. During the period, the pressure relief hole section is also connected to the atmosphere.
The electronic atomization device according to claim 10, characterized in that the electronic atomization device further includes a seal, the mounting bracket is provided with a receiving groove, and the anti-backflow airway and the pressure relief airway are provided in The bottom wall of the accommodation tank, the sealing member is an interference fit with the accommodation tank and covers the backflow prevention airway and the pressure relief airway;

Wherein, the sealing member is provided with a through hole, the through hole is connected to an end of the anti-backflow airway away from the starting airway, and the pneumatic sensing element is arranged on an end of the sealing member away from the anti-backflow airway. One side is connected to the anti-backflow airway through the through hole.
The electronic atomization device according to claim 12, characterized in that the starting airway is connected to the accommodating tank, the port of the anti-backflow airway is spaced apart from the port of the starting airway, and the container The bottom wall of the slot is also formed with a liquid accumulation tank surrounding the backflow prevention air channel, and the port of the starting air channel is also connected to the liquid accumulation tank.
The electronic atomization device according to claim 12, characterized in that the electronic atomization device further includes a control device, the control device is connected to the mounting bracket and is pressed against the sealing member, and the pneumatic The sensing component is electrically connected to the side of the control component away from the sealing component. The control component is provided with a through hole, and the via hole is connected to the through hole. The pneumatic sensing component passes through the through hole and the through hole. The through hole is connected to the anti-reflux airway.
The electronic atomization device according to claim 1, characterized in that the electronic atomization device further includes:

liquid storage tank;

The bracket includes a base and is covered at one end of the liquid storage tank, and the atomization chamber is formed between the bracket and the top cover;

A casing that is sleeved outside the liquid storage tank and the base. The casing is provided with a first air inlet, or the casing and the liquid storage tank cooperate to form a first air inlet;

Wherein, the base is provided with a second air inlet connected to the atomization chamber, the housing and the base cooperate to form an air inlet channel, or the housing, the liquid storage bin and the base The seat is formed with an air inlet channel, and the air inlet channel communicates with the first air inlet hole and the second air inlet hole;

The air inlet passage includes at least two first air ducts, and a convex structure is provided at the junction of two adjacent first air ducts. The convex structure is used to collect air entering from the first air inlet hole. The airflow is diverted to the first air passages on both sides.
The electronic atomization device according to claim 15, wherein the protruding structure is an arc structure, a triangular structure or a spherical structure.
The electronic atomization device according to claim 16, characterized in that the outer wall surface of the arc-shaped structure facing the first air inlet is a circular arc surface, and both sides of the circular arc surface are connected to adjacent ones respectively. The side wall surfaces of the two first air passages.
The electronic atomization device according to claim 17, wherein the radius of the arc surface is greater than or equal to 0.5 mm and less than or equal to 3.0 mm.
The electronic atomization device according to claim 17, wherein the symmetry plane of the arc surface faces the center of the first air inlet.
The electronic atomization device according to claim 15, wherein the cross-sectional area of the first air passage gradually decreases along the flow direction from the first air inlet to the second air inlet.
The electronic atomization device according to claim 20, wherein the air inlet channel further includes a second air channel, the second air inlet hole is connected to the second air channel, and the second air channel is The air inlet end is connected with the air outlet end of the first air channel, the cross-sectional area of the air inlet end of the second air channel is greater than the cross-sectional area of the air outlet end of the first air channel, and the cross-sectional area is along the The cross-sectional area of the first air inlet hole in the flow direction of the second air inlet hole.
The electronic atomization device according to claim 21, wherein the ratio of the cross-sectional area of the air inlet end of the second air channel to the cross-sectional area of the air outlet end of the first air channel is greater than or equal to 2.0.
The electronic atomization device according to claim 21, wherein the protruding structure is disposed on the base, and the protruding structure is disposed facing the first air inlet; the housing and the The base is cooperatively formed with the first air channel, the first air channel is arranged in an arc along the circumferential direction of the atomizer, and each of the first air channels is arranged around the second air inlet. ; The base is also provided with a second air channel, the second air channel traverses the base, and each of the first air channels is connected to the second air channel.
The electronic atomization device according to claim 23, characterized in that the number of the first air inlet holes is multiple, the protruding structures are arranged in one-to-one correspondence with the first air inlet holes, and the plurality of first air inlet holes are arranged in a one-to-one correspondence. The first air passage forms a connected annular shape around the circumference of the atomizer.
The electronic atomization device according to claim 15, wherein the outer shell and the liquid storage tank cooperate to form the first air passage, and the protruding structure is provided on the liquid storage tank or the outer shell. superior.
The electronic atomization device according to claim 25, characterized in that the air inlet channel further includes an air inlet section, the housing and the liquid storage tank further cooperate to form the air inlet section, and the air inlet section Disposed between the first air inlet hole and the at least two first air passages, the raised structure faces the air inlet section.
The electronic atomization device according to claim 26, wherein the cross-sectional area of the first air passage is larger than the cross-sectional area of the air inlet section.
The electronic atomization device according to claim 25, wherein the air inlet channel further includes an annular air channel formed between the base and the housing and a second air channel traversing the base. channel, the annular air channel is arranged along the circumferential direction of the electronic atomization device, each of the first air channels is connected to the annular air channel, the second air channel is connected to the annular air channel, and the third air channel is connected to the annular air channel. The two air inlets communicate with the second airway.
The electronic atomization device according to claim 15, wherein the first air inlet hole is an oval hole or a racetrack-shaped hole.