AEROSOL GENERATING DEVICE

Description

RELATED APPLICATION

The present application is a continuation of Chinese Patent Application No. 202422146627.X, filed on Sep. 2, 2024. The entire disclosure of the prior application is hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to the field of atomization technologies, including to an aerosol generating device.

BACKGROUND

An aerosol generating device is configured to generate an aerosol, for a user to inhale.

An air inlet channel and an atomization core are arranged in the aerosol generating device, and the air inlet channel is in communication with the outside of the aerosol generating device. In a process in which the user inhales the aerosol, an airflow from the outside enters an atomization cavity of the atomization core through the air inlet channel to be mixed with the aerosol in the atomization cavity, and then is discharged from the aerosol generating device.

Electronic devices such as a power supply and a circuit control board are arranged in the aerosol generating device. The circuit control board determines, according to a change of air pressure in the air inlet channel, a time at which the power supply supplies power to the atomization core, and controls values of a voltage and a current. This allows the atomization core to convert an appropriate amount of aerosol generating substrate into the aerosol within an appropriate time, thereby meeting a usage requirement of the user.

However, part of the aerosol in the atomization cavity may fail to be discharged from the aerosol generating device in time, and thus diffuses into the air inlet channel. In the related art, the space of the air inlet channel is in communication with the space in which the electronic devices in the aerosol generating device are arranged. Consequently, the aerosol may enter the space in which the electronic devices are arranged, and there is a risk that the aerosol condenses on the electronic devices and affects the normal operation of the electronic devices.

SUMMARY

In view of this, examples of the present disclosure is to provide an aerosol generating device of reducing an aerosol enters a space in which electronic devices in the aerosol generating device are arranged.

To achieve the foregoing objective, technical solutions of the aspects of the present disclosure are as follows:

An aspect of the present disclosure provides an aerosol generating device, including: an atomization assembly, provided with an atomization cavity; and a mounting assembly, provided with an air inlet channel, where the air inlet channel is in communication with the atomization cavity and the outside of the aerosol generating device, the air inlet channel is independently arranged, the mounting assembly includes a mounting bracket and a seal member, the mounting bracket is provided with a first cavity, the first cavity is open on one side to form a mounting opening, and the seal member sealingly covers the mounting opening, for the first cavity to form at least a part of the air inlet channel.

In an aspect, the mounting assembly further includes partition plates, the partition plates divide the air inlet channel to form a plurality of sub-cavities, the mounting assembly is further provided with air holes, and the air hole is in communication with sub-cavities on two sides of the partition plate, for the sub-cavities to be in communication successively along a flow direction of an airflow.

In an aspect, the first cavity is open on one side along a first direction to form the mounting opening, the first cavity is provided with the partition plate, and the partition plate extends along the first direction and is connected to the inner wall of the first cavity.

In an aspect, at least some of the partition plates are at least partially spaced apart from the seal member, to jointly form the air holes by means of enclosure.

In an aspect, the aerosol generating device further includes an air pressure sensor, the mounting assembly is provided with a negative pressure channel, the sub-cavity includes a negative pressure cavity and an airflow through cavity, the negative pressure channel is in communication with the negative pressure cavity, a sensing area of the air pressure sensor is located in the negative pressure channel, and along the flow direction of the air flow, at least one airflow through cavity is arranged upstream of the negative pressure cavity.

In an aspect, along the flow direction of the airflow, the last sub-cavity forms the negative pressure cavity.

In an aspect, the mounting bracket is provided with a second cavity and a throttle hole, the second cavity is open on one side along a second direction to form an outlet of the air inlet channel, the first direction intersects with the second direction, the throttle hole is in communication with the first cavity and the second cavity, the second cavity forms the negative pressure cavity, and the first cavity forms at least a part of the airflow through cavity.

In an aspect, the aerosol generating device further includes a shell, the shell is provided with a mounting space and an air inlet hole, the atomization assembly and the mounting assembly are both arranged in the mounting space, the air inlet hole is in communication with the outside of the shell and the mounting space, the seal member is provided with an airflow through hole, the airflow through hole is in communication with the first cavity, the seal member is in sealing contact with the inner wall of the mounting space, and the airflow through hole is in communication with the air inlet hole.

In an aspect, one of the atomization assembly and the mounting assembly is provided with a first sealing protrusion and the other is provided with a limiting member, the first scaling protrusion and the limiting member are both of an annular structure and one of the two is embedded in the inner side of the other, the first sealing protrusion and the limiting member are in sealing contact perpendicular to the embedding direction of the two and the inner one of the two encloses a communication space, and the communication space is in communication with the atomization cavity and the air inlet channel.

In an aspect, the aerosol generating device further includes a suction nozzle member, the suction nozzle member is provided with a through air outlet channel, the atomization assembly includes a through airflow channel, the atomization cavity forms at least a part of the airflow channel, the air outlet channel is in communication with the airflow channel and the outside of the aerosol generating device, the airflow channel is in communication with the air inlet channel, the air outlet channel and the airflow channel both extend along a third direction, one end of the atomization assembly along the third direction is provided with a second sealing protrusion, the second sealing protrusion is of an annular structure, the suction nozzle member is embedded in the inner side of the second sealing protrusion along the third direction and abuts against the mounting assembly along the third direction, and the peripheral surface of the suction nozzle member perpendicular to the third direction is in sealing contact with the inner side surface of the second sealing protrusion.

According to the aerosol generating device in the aspects of the present disclosure, an air inlet channel is independently arranged, making it difficult for an aerosol and a condensate entering the air inlet channel to enter other areas of the aerosol generating device, thus preventing the aerosol and the condensate from coming into contact with other devices of the aerosol generating device, thereby helping reduce a corrosion effect of the aerosol and the condensate on other devices of the aerosol generating device and extend the service life of the aerosol generating device. A mounting bracket and a seal member are combined to form at least a part of the air inlet channel, thereby helping enable the arrangement of the air inlet channel to better use a space within the mounting bracket, and helping make the structure of the aerosol generating device more compact.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of an aerosol generating device in an aspect of the present disclosure at a first viewing angle;

FIG. 2 is a schematic view of the device in FIG. 1 at a second viewing angle;

FIG. 3 is a schematic view of the device in FIG. 1 at a third view angle;

FIG. 4 is a schematic cut-away axial view of the device in FIG. 1, where a cut-away position is at a position A-A, and a dashed-line arrow indicates a flow direction of an airflow;

FIG. 5 is a partial enlarged schematic view of a position B in FIG. 4, where a dashed-line arrow indicates a flow direction of an airflow;

FIG. 6 is a schematic view of a mounting bracket in an aspect of the present disclosure;

FIG. 7 is a schematic view of the device in FIG. 6 at another viewing angle;

FIG. 8 is a schematic cut-away axial view of the device in FIG. 6, where a cut-away position is at a position C-C;

FIG. 9 is a schematic view of an aerosol generating device in an aspect of the present disclosure; and

FIG. 10 is a schematic cut-away axial view of the device in FIG. 9, where a cut-away position is at a position D-D.

DESCRIPTIONS OF REFERENCE NUMERALS

• • 10. atomization assembly;
  • 10a. atomization cavity;
  • 10b. airflow channel;
  • 11. second sealing protrusion;
  • 12. first sealing protrusion;
  • 20. electronic device;
  • 21. power supply assembly;
  • 22. circuit control board;
  • 23. screen component;
  • 30. mounting assembly;
  • 30a. air inlet channel;
  • 30b. mounting cavity;
  • 30c. sub-cavity;
  • 30d. negative pressure cavity;
  • 30e. airflow through cavity;
  • 30f. air hole;
  • 30g. negative pressure channel;
  • 30h. communication space;
  • 30i. through hole;
  • 31: mounting bracket;
  • 31a. first cavity;
  • 31b. second cavity;
  • 31c: throttle hole;
  • 31d. mounting opening;
  • 311. partition plate;
  • 311a. notch;
  • 312. stop rib;
  • 313. limiting member;
  • 32. seal member;
  • 32a. airflow through hole;
  • 40. shell;
  • 40a. mounting space;
  • 40b. air inlet hole;
  • 50. liquid absorption member;
  • 60. suction nozzle member; and
  • 60a. air outlet channel.

DETAILED DESCRIPTION

It should be noted that, technical features in the aspects of the present disclosure may be mutually combined in case of no conflict. The detailed descriptions in specific implementations should be understood as explanatory descriptions of examples of the aspects of the present disclosure, and should not be considered as limitations to the aspects of the present disclosure.

In the description of the aspects of the present disclosure, the orientation or position relationship of the “first direction” is based on an orientation or position relationship shown by an arrow X in FIG. 6 to FIG. 8; the orientation or position relationship of the “second direction” is based on an orientation or position relationship shown by an arrow Y in FIG. 6 and FIG. 8; and the orientation or position relationship of the “third direction” is based on an orientation or position relationship shown by an arrow Z in FIG. 10. It should be understood that, these orientation terms are intended only to describe the aspects of the present disclosure and simplify the description, rather than indicating or implying that the mentioned device or element must have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation of the aspects of the present disclosure.

An aspect of the present disclosure provides an aerosol generating device. Referring to FIG. 1 to FIG. 4, the aerosol generating device includes an atomization assembly 10 and a mounting assembly 30. The atomization assembly 10 is provided with an atomization cavity 10a.

The mounting assembly 30 is provided with an air inlet channel 30a. The air inlet channel 30a is in communication with the atomization cavity 10a and the outside of the aerosol generating device. The air inlet channel 30a is independently arranged. The mounting assembly 30 includes a mounting bracket 31 and a seal member 32. The mounting bracket 31 is provided with a first cavity 31a. The first cavity 31a is open on one side to form a mounting opening 31d. The seal member 32 sealingly covers the mounting opening 31d, for the first cavity 31a to form at least a part of the air inlet channel 30a.

The atomization assembly 10 is provided with an atomization core and an aerosol generating substrate, and the atomization cavity 10a is located in the atomization core. The aerosol generating substrate enters the atomization core, the atomization core converts the aerosol generating substrate into an aerosol, and the aerosol enters the atomization cavity 10a.

It may be understood that the atomization cavity 10a is in communication with the outside of the aerosol generating device, allowing the aerosol in the atomization cavity 10a to be discharged from the aerosol generating device for inhalation by a user.

In a process in which the user inhales the aerosol, a negative pressure is generated in the aerosol generating device. Under the negative pressure, an airflow from the outside of the aerosol generating device enters the air inlet channel 30a, then enters the atomization cavity 10a to be mixed with the aerosol, and then is discharged.

It may be understood that after the user completes the inhalation, the residual aerosol in the atomization cavity 10a can diffuse into the air inlet channel 30a, and a condensate that is formed by condensation of the aerosol can flow into the air inlet channel 30a.

That the air inlet channel 30a is independently arranged means that the air inlet channel 30a is not in communication with another channel in the aerosol generating device, thus making it difficult for a liquid medium, for example, the aerosol, to diffuse from the air inlet channel 30a to another area in the aerosol generating device to come into contact with another component in the aerosol generating device.

The mounting bracket 31 and the seal member 32 jointly form at least a part of the air inlet channel 30a. That is, at least a part of the air inlet channel 30a is not an integral structure, but is formed by combining the mounting bracket 31 and the seal member 32. In this way, through adjustment of the respective shapes of the mounting bracket 31 and the seal member 32, the part of the air inlet channel 30a that is formed by the mounting bracket 31 and the seal member 32 can have diversified shapes. In this case, when the total volume of the mounting assembly 30 is given, space utilization of the mounting assembly 30 can be improved while the shape and the size of the air inlet channel 30a meet an airflow requirement, thereby making the structure more compact.

According to the aerosol generating device in this aspect of the present disclosure, the air inlet channel 30a is independently arranged, making it difficult for the aerosol and the condensate entering the air inlet channel 30a to enter other areas of the aerosol generating device, thus preventing the aerosol and the condensate from coming into contact with other components of the aerosol generating device, thereby helping reduce the corrosion effect of the aerosol and the condensate on other components of the aerosol generating device and extend the service life of the aerosol generating device. The mounting bracket 31 and the seal member 32 are combined to form at least a part of the air inlet channel 30a, thereby helping enable the arrangement of the air inlet channel 30a to better use a space in the mounting bracket 31, and helping make the structure of the aerosol generating device more compact.

In an aspect, referring to FIG. 1 to FIG. 4, the aerosol generating device further includes electronic devices 20, and the electronic devices 20 are electrically connected to the atomization assembly 10. The electronic devices 20 can provide electric energy to the atomization core in the atomization assembly 10 at an appropriate time. After obtaining the electric energy, the atomization core converts the electric energy by heating or other means, to convert an appropriate amount of aerosol generating substrate into an aerosol for the user to inhale.

The electronic device 20 refers to a device that can release, transmit, and use electric energy.

In an aspect, the mounting assembly 30 is provided with a mounting cavity 30b, and at least a part of the electronic device 20 is located in the mounting cavity 30b.

In an aspect, referring to FIG. 8, the mounting cavity 30b is arranged in the mounting bracket 31, to facilitate the simultaneous preparation of the mounting cavity 30b and the first cavity 31a. The mounting cavity 30b provides a mounting position for the electronic device 20, and also enables the mounting assembly 30 to provide a particular degree of protection for the electronic device 20.

It may be understood that the air inlet channel 30a is independently arranged, allowing the air inlet channel 30a to be isolated from the mounting cavity 30b, thereby helping reduce a corrosion effect of the aerosol and the condensate on the electronic device 20, and also helping reduce an adverse effect of the condensate on electric energy and signal transmission in the electronic device 20.

In an aspect, referring to FIG. 2 and FIG. 3, the electronic devices 20 include at least one of a power supply assembly 21, a circuit control board 22, and a screen component 23.

The power supply assembly 21 is configured to provide electric energy to other electric energy consuming devices in the aerosol generating device, for example, the atomization core, the screen component 23, and an air pressure sensor.

The power supply assembly 21 includes a battery. A specific type of the battery is not limited, for example, a lithium battery, or a silver zinc battery. The circuit control board 22 may be a printed circuit board (PCB) and is configured to control the aerosol generating device. For example, the power supply assembly 21 is electrically connected to the atomization core, and the circuit control board 22 is electrically connected to the power supply assembly 21, to control magnitude of a current and a voltage that are provided by the power supply assembly 21 to the atomization core, a duration, and a turn-on time, to allow the aerosol generated by the atomization core to meet a user requirement.

The screen component 23 is configured to display information about the aerosol generating device, for example, information about the remaining electric energy and information about the remaining aerosol generating substrate, and may also display information such as a pattern or a character for the user to view.

It may be understood that one of the power supply assembly 21, the circuit control board 22, and the screen component 23 may be located in the mounting cavity 30b. Alternatively, the power supply assembly 21, the circuit control board 22, and the screen component 23 are all located in the mounting cavity 30b. Alternatively, a part of each of the power supply assembly 21, the circuit control board 22, and the screen component 23 is located in the mounting cavity 30b.

It may be understood that, in a process in which the atomization core heats the aerosol generating substrate and converts the aerosol generating substrate into an aerosol, frying noise may be generated in the heating process due to factors such as impurities in the aerosol generating substrate. A sound wave of the frying noise can be transmitted out of the aerosol generating device along the air inlet channel 30a, leading to a negative impact on usage experience of the user.

In an aspect, referring to FIG. 4 and FIG. 5, the mounting assembly 30 further includes partition plates 311. The partition plates 311 divide the air inlet channel 30a to form a plurality of sub-cavities 30c. The mounting assembly 30 is further provided with air holes 30f. The air hole 30f is in communication with the sub-cavities 30c on two sides of the partition plate 311, for the sub-cavities 30c to be in communication successively along a flow direction of an airflow.

In a process in which the user inhales the aerosol, the airflow passes through the air holes 30f sequentially to pass between the sub-cavities 30c until the airflow flows out of the air inlet channel 30a and enters the atomization cavity 10a.

It may be understood that, in a projection plane perpendicular to the direction of the airflow, projection of the air hole 30f is smaller than projection of either of the two sub-cavities 30c in communication with the air hole 30f.

In this way, after being transmitted from the atomization cavity 10a to the air inlet channel 30a, the sound wave of the frying noise needs to be reflected a plurality of times in one sub-cavity 30c before entering, through the air hole 30f, another sub-cavity 30c located upstream in the flow direction of the airflow, so that a propagation path and the number of times of reflection of the sound wave of the frying noise are increased, energy of the sound wave of the frying noise is more consumed, the magnitude of the frying noise transmitted out of the aerosol generating device is reduced, thereby helping improve user experience.

“A plurality of sub-cavities 30c” means that the number of the sub-cavities 30c is not less than two.

In an aspect, referring to FIG. 2, FIG. 5, and FIG. 6, the first cavity 31a is open on one side along a first direction to form the mounting opening 31d. The first cavity 31a is provided with the partition plate 311. The partition plate 311 extends along the first direction and is connected to the inner wall of the first cavity 31a.

The mounting bracket 31 is made of engineering plastics. In a process of manufacturing the mounting bracket 31 by using an injection molding process, an injection mold needs to be pulled out after the liquid plastic solidifies.

After the injection mold is pulled out in the first direction, the first cavity 31a is formed and the partition plate 311 is formed synchronously. This helps simplify the manufacturing process steps of the mounting bracket 31 and improve the manufacturing efficiency.

The seal member 32 is made of an elastic material, such as silicone. The seal member 32 covers the mounting opening 31d and is elastically deformed, thereby reducing a probability that the airflow and the aerosol flow through a joint between the seal member 32 and the mounting bracket 31. This helps maintain the airtightness of the air inlet channel 30a, so that a negative pressure can be generated during the inhalation of the user.

In an aspect, referring to FIG. 4 and FIG. 5, at least some of the partition plates 311 are at least partially spaced apart from the seal member 32, to jointly form the air holes 30f by means of enclosure.

In this way, the air hole 30f is directly formed in the mold-pulling process by arranging a corresponding structure on the injection mold, without an additional process of drilling the air hole 30f in the partition plate 311, thereby improving the manufacturing efficiency.

It may be understood that, in an aspect in which there are a plurality of air holes 30f, at least some of the air holes 30f are formed jointly by the seal member 32 and the partition plates 311 by means of enclosure.

A specific manner of the spaced arrangement of the partition plates 311 and the seal member 32 is not limited.

For example, referring to FIG. 6, at least some of the partition plates 311 are provided with notches 311a. The notches 311a penetrate the partition plates 311 perpendicular to the first direction, and the notches 311a are open on a side toward the mounting opening 31d along the first direction. The seal member 32 and the inner wall of the notch 311a form the air hole 30f by means of enclosure.

In an aspect, referring to FIG. 5, a part of an end surface of a side, close to the mounting opening 31d, of the partition plate 311 along the first direction is arranged in close contact with the seal member 32, thereby helping limit the seal member 32 along the first direction by using the partition plate 311 during the mounting of the seal member 32.

In an aspect, referring to FIG. 5 and FIG. 6, the first cavity 31a is provided with a stop rib 312, and the stop rib 312 extends along the first direction and is in close contact with the seal member 32 along the first direction, thereby helping limit the seal member 32 along the first direction during the mounting of the seal member 32.

In an aspect, referring to FIG. 8, the aerosol generating device further includes an air pressure sensor. The mounting assembly 30 is provided with a negative pressure channel 30g. A sensing area of the air pressure sensor is located in the negative pressure channel 30g. The air inlet channel 30a is in communication with the negative pressure channel 30g.

During inhalation by a user, a negative pressure is generated in the air inlet channel 30a. Because the air inlet channel 30a is in communication with the negative pressure channel 30g, a negative pressure is accordingly generated in the negative pressure channel 30g. The sensing area of the air pressure sensor senses information about an air pressure change in the negative pressure channel 30g and transfers the information to the circuit control board 22. The circuit control board 22 controls the power supply assembly 21 to supply power to the atomization core.

In an aspect in which the negative pressure channel 30g is provided, referring to FIG. 4 and FIG. 5, the sub-cavity 30c includes a negative pressure cavity 30d and an airflow through cavity 30c. The negative pressure channel 30g is in communication with the negative pressure cavity 30d. The sensing area of the air pressure sensor is located in the negative pressure channel 30g. Along the flow direction of the airflow, at least one airflow through cavity 30e is arranged upstream of the negative pressure cavity 30d.

It may be understood that, to generate the negative pressure in the negative pressure cavity 30d in time to improve a response speed of the aerosol generating device, the size of an airflow through opening in communication with the airflow through cavity 30e and the negative pressure cavity 30d upstream of the negative pressure cavity 30d is relatively small. Therefore, the airflow passing through the airflow through opening is at a relatively high flow rate, easily causing airflow noise, and affecting user experience. Therefore, at least one airflow through cavity 30e is arranged upstream of the negative pressure cavity 30d, so that a sound wave of the generated airflow noise can pass out of the aerosol generating device only after passing through one airflow through cavity 30e, thereby increasing a propagation path and the number of reflection times of the sound wave of the airflow noise, consuming more energy of the sound wave of the airflow noise, and reducing the magnitude of the airflow noise that passes out of the aerosol generating device, thus helping improve the user experience.

In an aspect, referring to FIG. 5, along the flow direction of the airflow, the last sub-cavity 30c forms the negative pressure cavity 30d, thereby helping further increase the propagation path and the number of reflection times of the sound wave of the airflow noise, consume more energy of the sound wave of the airflow noise, and reduce the magnitude of the airflow noise that passes out of the aerosol generating device, thus helping improve the user experience.

It may be understood that, because the seal member 32 is made of an elastic material, the negative pressure generated in the air inlet channel 30a during inhalation by the user may cause deformation of the seal member 32, affecting a speed of the air pressure change in the air inlet channel 30a formed by the seal member 32.

In an aspect, referring to FIG. 6 and FIG. 7, the mounting bracket 31 is provided with a second cavity 31b and a throttle hole 31c. The second cavity 31b is open on one side along a second direction to form an outlet of the air inlet channel 30a. The first direction intersects with the second direction. The throttle hole 31c is in communication with the first cavity 31a and the second cavity 31b. The second cavity 31b forms the negative pressure cavity 30d. The first cavity 31a forms at least a part of the airflow through cavity 30c.

The throttle hole 31c forms an air hole 30f.

After the mold is pulled out, the negative pressure cavity 30d is directly formed in a manner of forming the second cavity 31b. That is, the negative pressure cavity 30d is formed by the structure of the mounting bracket 31 alone, and does not need to be formed by the seal member 32. The structure forming the negative pressure cavity 30d has higher strength, and is less likely to deform under the action of the negative pressure. Therefore, it is difficult to decrease the volume of the negative pressure cavity 30d under the action of the negative pressure, and an air pressure in the negative pressure cavity 30d decreases faster. In other words, it is easier to trigger the air pressure sensor, thereby improving a response speed of the aerosol generating device generating an aerosol, and helping improve user experience.

In an aspect in which the mounting cavity 30b is arranged in the mounting bracket 31, referring to FIG. 8, the mounting cavity 30b runs through the mounting bracket 31 along the first direction. On one hand, this helps simultaneously prepare the mounting cavity 30b and the first cavity 31a by pulling out the mold along the first direction. On the other hand, this also helps mount the electronic device 20 into the mounting cavity 30b.

In an aspect, referring to FIG. 9 and FIG. 10, the aerosol generating device further includes a shell 40, the shell 40 is provided with a mounting space 40a, and the atomization assembly 10 and the mounting assembly 30 are both arranged in the mounting space 40a.

The atomization assembly 10, the electronic device 20, and the mounting assembly 30 are protected by using the shell 40. In addition, the shell 40 can be shaped differently, to facilitate viewing and holding by the user.

It may be understood that, the atomization assembly 10 and the mounting assembly 30 are both arranged spaced apart from at least a part of the inner wall of the mounting space 40a to form a gap, and a part of the electronic device 20 is located in the gap, so that the structure of the aerosol generating device is more compact.

In an aspect in which the shell 40 is provided, referring to FIG. 5 and FIG. 10, the shell 40 is provided with an air inlet hole 40b. The air inlet hole 40b is in communication with the outside of the shell 40 and the mounting space 40a. The seal member 32 is provided with an airflow through hole 32a running through the seal member 32. The airflow through hole 32a is in communication with the first cavity 31a. The seal member 32 is in sealing contact with the inner wall of the mounting space 40a, and the airflow through hole 32a is in communication with the air inlet hole 40b.

In this way, on one hand, a risk that the aerosol enters the mounting space 40a and then condenses on the electronic device 20 is reduced. On the other hand, this helps reduce a probability that the gas in the mounting space 40a enters the air inlet channel 30a during inhalation by the user.

In an aspect, referring to FIG. 4 and FIG. 10, the atomization assembly 10 or the mounting assembly 30 is provided with a first sealing protrusion 12, and the other is provided with a limiting member 313. The first sealing protrusion 12 and the limiting member 313 are both of an annular structure and one of the two is embedded in the inner side of the other. The first sealing protrusion 12 and the limiting member 313 are in sealing contact perpendicular to the embedding direction of the two and the inner one of the two encloses a 30h. The communication space 30h is in communication with the atomization cavity 10a and the air inlet channel 30a.

It may be understood that, if the first sealing protrusion 12 is embedded in the inner side of the limiting member 313, the communication space 30h is defined by the inner side wall of the first sealing protrusion 12. If the limiting member 313 is embedded in the inner side of the first sealing protrusion 12, the communication space 30h is defined by the inner side wall of the limiting member 313.

In this way, by means of the sealing contact between the first sealing protrusion 12 and the limiting member 313, a probability that the aerosol and the condensate from the communication position of the atomization cavity 10a and the air inlet channel 30a enter another part of the aerosol generating device or stick to the user is reduced. This also helps reduce a probability that an external gas enters the communication space, and helps generate a negative pressure in the air inlet channel 30a.

The first sealing protrusion 12 may be made of an elastic material, such as rubber or silicone. The elastic deformation of the first sealing protrusion 12 maintains the sealing contact between the first sealing protrusion 12 and the limiting member 313

In an aspect, referring to FIG. 6, the limiting member 313 is arranged on the mounting bracket 31, to improve production efficiency by one-time molding through injection molding.

In an aspect, referring to FIG. 4, the atomization assembly 10 is located on a side of the mounting assembly 30 along a third direction. The first sealing protrusion 12 is located on a surface of the atomization assembly 10 on the side close to the mounting assembly 30 along the third direction. The limiting member 313 is located on a surface of the mounting assembly 30 on the side close to the atomization assembly 10 along the third direction. The atomization assembly 10 includes an airflow channel 10b that runs through along the third direction. The atomization cavity 10a forms at least a part of the airflow channel 10b. In this way, the communication space 30h is in communication with the airflow channel 10b along the third direction, thereby helping reduce the inhalation resistance.

In an aspect, referring to FIG. 10, the aerosol generating device further includes a suction nozzle member 60. The suction nozzle member is provided with a through air outlet channel 60a. The atomization assembly 10 includes a through airflow channel 10b. The atomization cavity 10a forms at least a part of the airflow channel 10b. The suction nozzle member 60 is in sealing contact with the atomization assembly 10, so that the air outlet channel 60a is in communication with the airflow channel 10b, the airflow channel 10b is in communication with the air inlet channel 30a, and the air outlet channel 60a is in communication with the outside of the aerosol generating device.

The suction nozzle member 60 is to be used by a user to hold the suction nozzle member 60 in the mouth of the user during use of the aerosol generating device, to inhale the aerosol in the airflow channel 10b.

The suction nozzle member 60 is in sealing contact with the atomization assembly 10, so that the airflow channel 10b and the air outlet channel 60a form an independent airflow path, thereby making it difficult for an airflow in the airflow channel 10b to enter other parts of the aerosol generating device or flow out of the aerosol generating device through other airflow paths except flowing to the air outlet channel 60a. On one hand, this reduces a negative impact on generation of a negative pressure that is caused by air entering the airflow channel 10b and the air outlet channel 60a through the combination position of the suction nozzle member 60 and the atomization assembly 10 during inhalation of the aerosol by the user. On the other hand, this also reduces a probability that the aerosol and the condensate leak out from the combination position of the suction nozzle member 60 and the atomization assembly 10 and then enter other parts of the aerosol generating device or stick to the user.

In an aspect in which the shell 40 is provided, referring to FIG. 10, the shell 40 is provided with a mounting through-hole. The mounting through-hole is in communication with the outside of the shell 40 and the mounting space 40a. A part of the suction nozzle member 60 is inserted in the mounting through-hole, and the sealing contact position between the suction nozzle member 60 and the atomization assembly 10 is located in the mounting space 40a.

In this way, the protection effect of the shell 40 reduces a probability of failure of the sealing contact between the suction nozzle member 60 and the atomization assembly 10 due to a reason such as collision from an external object.

In an aspect, referring to FIG. 3, FIG. 4, and FIG. 10, the air outlet channel 60a and the airflow channel 10b both extend along the third direction. One end of the atomization assembly 10 along the third direction is provided with a second sealing protrusion 11. The second sealing protrusion 11 is of an annular structure. The suction nozzle member 60 is embedded in the inner side of the second sealing protrusion 11 along the third direction and abuts against the mounting assembly 30 along the third direction. The peripheral surface of the suction nozzle member 60 perpendicular to the third direction is in sealing contact with the inner side surface of the second sealing protrusion 11.

During assembly of the aerosol generating device, the suction nozzle member 60 is embedded in and abuts against the inner side of the second sealing protrusion 11 along the third direction, so that the communication between the air outlet channel 60a and the airflow channel 10b and the sealing of the communication position of two can be implemented. The second sealing protrusion 11 provides functions of positioning, guiding, and sealing in a mounting process.

The second sealing protrusion 11 may be made of an elastic material, such as rubber or silicone. The clastic deformation of the second sealing protrusion 11 maintains the sealing contact between the second sealing protrusion 11 and the suction nozzle member 60. In an aspect in which the communication space 30h is provided, referring to FIG. 4 and FIG. 10, the aerosol generating device further includes a liquid absorption member 50, and the liquid absorption member 50 is arranged in the communication space 30h.

After entering the communication space 30h, the condensate formed by the aerosol may come into contact with the liquid absorption member 50 and is further absorbed by the liquid absorption member 50, thereby reducing a risk that the condensate enters the air inlet channel 30a and causes abnormal noise or flows out of the aerosol generating device.

A specific form of the liquid absorption member 50 is not limited, and is, for example, a fiber structure formed by weaving or twisting of chemical fibers such as cotton wool, sponge, polyester, and nylon. In an aspect in which the second cavity 31b is provided, an opening of the second cavity 31b on a side away from the throttle hole 31c along the second direction is in communication with the communication space 30h.

In an aspect, referring to FIG. 7 and FIG. 8, the mounting assembly 30 is provided with a through hole 30i, and the through hole 30i is in communication with the communication space 30h and the mounting cavity 30b. The atomization assembly 10 includes a conductive column. The conductive column passes through the through hole 30i and enters the mounting cavity 30b to be electrically connected to the electronic device 20. The through hole 30i is filled with a seal member, and the conductive column is inserted in the seal member.

In this way, an objective of electrical connection between the electronic device 20 and the atomization assembly 10 is achieved. After the electrical connection between the atomization assembly 10 and the electronic device 20 is completed in an assembly process, an objective of isolating the communication space 30h from the mounting cavity 30b is achieved by means of filling the seal member.

A specific type of the seal member is not limited. For example, a sealant is filled into the through hole 30i, and the sealant solidifies to form the seal member.

The examples of the present disclosure may be combined with each other without contradictions. The foregoing are merely preferred technical solutions in the aspects of the present disclosure and are not intended to limit the protection scope of the aspects of the present disclosure. For a person skilled in the art, the embodiments of the present disclosure may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the aspects of the present disclosure shall fall within the protection scope of the aspects of the present disclosure.