EP4691295A1

EP4691295A1 - Atomizer and aerosol generating device

Info

Publication number: EP4691295A1
Application number: EP25193816.3A
Authority: EP
Inventors: Yingzhao LIU; Haijun BAI; Zishuai YAO; Li Xiao; Wenxiang Wu; Xinyu Wang; Wei Yan; Xi Chen; Kaicheng WANG; Chengzhi YANG
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2024-08-08
Filing date: 2025-08-04
Publication date: 2026-02-11

Abstract

Embodiments of this application provide an atomizer (10) and an aerosol generating device. The atomizer (10) includes an atomization core (11), a mounting assembly (12), a liquid storage member (13), and a vent tube (14). The atomization core (11) has an atomization cavity (11a). The mounting assembly (12) is provided with a mounting space (12a). The atomization core (11) is arranged in the mounting space (12a) and jointly defines a main storage cavity (12d) with the inner wall of the mounting space (12a). The liquid storage member (13) is located in the main storage cavity (12d), and the liquid storage member (13) stores an aerosol generating substrate. The vent tube (14) is at least partially located in the main storage cavity (12d), and is partially inserted into the liquid storage member (13). The vent tube (14) includes a through vent channel (14c). A first opening (14ca) on one end of the vent channel (14c) is provided in the vent tube (14) and is in communication with the main storage cavity (12d), and a second opening (14cb) on an other end of the vent channel (14c) is in communication with outside of the atomizer (10). The embodiments of this application help improve efficiency of airflow diffusion from the first opening (14ca) to each region within the main storage cavity (12d), which further helps reduce adverse impact of negative pressure on flowing of the aerosol generating substrate within the main storage cavity (12d).

Description

TECHNICAL FIELD

Embodiments of this application relate to the field of atomization technologies, and in particular, to an atomizer and an aerosol generating device.

BACKGROUND

An atomizer of an aerosol generating device is configured to generate an aerosol for a user to inhale.
The atomizer is provided therein with a vent channel that is configured to bring a space for storing an aerosol generating substrate in the atomizer into communication with outside, to maintain atmospheric pressure equilibrium between the space for storing an aerosol generating substrate in the atomizer and outside of the aerosol generating device when the aerosol generating substrate in the aerosol generating device depletes to a specific extent, thereby facilitating contact between the aerosol generating substrate to contact an atomization core in the atomizer.
In the related art, the space for storing an aerosol generating substrate in the atomizer is provided therein with a liquid storage member, and the liquid storage member is provided therein with pores to absorb the aerosol generating substrate through a capillary action. However, the liquid storage member may block an opening of the vent channel, adversely affecting flowing of an airflow in the vent channel.

SUMMARY

In view of this, embodiments of this application are intended to provide an atomizer and an aerosol generating device which help improve efficiency of airflow flowing outside and inside the atomizer through a vent channel.
To achieve the foregoing objective, technical solutions in the embodiments of this application are implemented as follows:
An embodiment of this application provides an atomizer, including:

an atomization core, having an atomization cavity;
a mounting assembly, provided with a mounting space, where the atomization core is arranged in the mounting space and jointly defines a main storage cavity with the inner wall of the mounting space;
a liquid storage member, located in the main storage cavity, where the liquid storage member stores an aerosol generating substrate;
a vent tube, at least partially located in the main storage cavity and partially inserted into the liquid storage member, where the vent tube includes a through vent channel, a first opening on one end of the vent channel is in communication with the main storage cavity, and a second opening on an other end of the vent channel is in communication with outside of the atomizer.

In some embodiments, the mounting assembly includes a housing and a sealing body. The housing is provided therein with a mounting cavity. The side of the mounting cavity along a first direction is open. The atomization core is located in the mounting cavity. The sealing body hermetically covers an open portion of the mounting cavity to form the mounting space. The atomization core, the sealing body, and the housing jointly define the main storage cavity. The sealing body is provided with a through mounting hole that extends along the first direction. The vent tube is inserted into the mounting hole and is hermetically attached to the inner wall of the mounting hole.
In some embodiments, the atomizer further includes a mounting cover. The mounting cover is arranged on the side of the mounting assembly and defines a flow guiding space with the mounting assembly. The mounting cover has an air inlet hole. The inlet of the atomization cavity is in communication with the flow guiding space. The vent channel is in communication with the flow guiding space and the main storage cavity. The air inlet hole is in communication with the flow guiding space and the outside of the atomizer.
In some embodiments, the inlet of the atomization cavity is located on one side of the flow guiding space along a first direction. The outlet of the air inlet hole is located on an other side. The area of the section of the inlet of the atomization cavity perpendicular to the first direction is less than the area of any section of the flow guiding space perpendicular to the first direction.
In some embodiments, in a projection plane perpendicular to the first direction, the projection of the second opening of the vent channel in communication with the flow guiding space is located outside the projection range of the inlet of the atomization cavity.
In some embodiments, the second opening of the vent channel in communication with the flow guiding space and the inlet of the atomization cavity are located on the same side of the flow guiding space along the first direction.
In some embodiments, the main storage cavity includes a main cavity and a liquid inlet channel. The atomization cavity is isolated from the main cavity. The liquid inlet channel is in communication with the main cavity and the outside of the atomizer;

the first opening is in communication with the liquid inlet channel; and/or
the communication position between the liquid inlet channel and the main cavity is located on the first wall of the main cavity, the liquid storage member is spaced apart from the first wall to form a cavity, and the first opening is in communication with the cavity.

In some embodiments, the first opening is located inside the liquid storage member.
In some embodiments, the vent tube extends along the first direction. The external surface of the part of the vent tube located inside the liquid storage member is provided with the first opening. In a projection plane parallel to the first direction, the projection of the first opening at least partially forms an included angle a with the first direction, where 0° ≤ a < 90°.
In some embodiments, the side surface of the vent tube along the first direction is at least partially an inclined surface. The inclined surface is a plane and forms an acute included angle with the first direction. The first opening includes a first sub-opening. The first sub-opening is at least partially located on the inclined surface.
In some embodiments, the end surface of the vent tube along the first direction is the inclined surface, and the first sub-opening is entirely located on the inclined surface; or
the side surface of the vent tube along the first direction further includes an end plane, the end plane extends perpendicularly to the first direction and is connected to the inclined surface, and the inclined surface is located on the side of the end plane close to the connection position between the vent tube and the inner wall of the mounting space along the first direction.
In some embodiments, the first opening includes a second sub-opening. The second sub-opening is located on the side wall of the vent tube perpendicular to the first direction.
In some embodiments, the vent channel includes a channel body and a vent slot. The channel body extends along the first direction. The vent slot extends along the second direction and is in communication with the channel body. The first direction intersects the second direction. The side of the vent slot along the second direction is open to form at least part of the second sub-opening.
In some embodiments, the area of the contour defined by the second sub-opening is not less than the area of the smallest section of the channel body perpendicular to the first direction; and/or
the side of the vent slot along a third direction is open, and the third direction is respectively perpendicular to the first direction and the second direction.
In some embodiments, the aerosol generating device includes a storage member and the atomizer in any of the foregoing embodiments. The storage member is provided therein with an additional storage cavity. The main storage cavity is in communication with the additional storage cavity.
In the atomizer in the embodiments of this application, the vent tube is at least partially arranged in the liquid storage member, which helps improve efficiency of airflow diffusion from the first opening on the vent tube to each region within the main storage cavity, and further helps reduce adverse impact of negative pressure on flowing of the aerosol generating substrate within the main storage cavity, and helps reduce a risk of a problem such as dry heating of the atomizer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an atomizer according to a first embodiment of this application.
FIG. 2 is a schematic sectional axonometric view of the embodiment in FIG. 1, with a section cut along A-A.
FIG. 3 is a schematic sectional axonometric view of the embodiment in FIG. 1, with a section cut along B-B.
FIG. 4 is a schematic axonometric view of a mounting assembly according to an embodiment of this application, with a section cut along A-A in FIG. 1.
FIG. 5 is a schematic sectional view of an atomizer according to a second embodiment of this application.
FIG. 6 is a schematic sectional view of an atomizer according to a third embodiment of this application.
FIG. 7 is a schematic axonometric view of an atomizer according to an embodiment of this application;
FIG. 8 is a schematic diagram of the embodiment in FIG. 7 from another perspective.
FIG. 9 is a schematic sectional view along C-C in FIG. 8.
FIG. 10 is a schematic diagram of an atomizer according to a fourth embodiment of the present invention.
FIG. 11 is a schematic sectional view along D-D in FIG. 10.
FIG. 12 is a schematic sectional view along E-E in FIG. 10.
FIG. 13 is a partial schematic enlarged view of F in FIG. 12.
FIG. 14 is a partial schematic enlarged view of a fifth embodiment of the present invention, with a partial enlarged portion being F in FIG. 12.
FIG. 15 is a schematic diagram of a vent tube according to a sixth embodiment of the present invention.
FIG. 16 is a schematic diagram of a vent tube according to a seventh embodiment of the present invention.
FIG. 17 is a schematic sectional view along G-G in FIG. 16.
FIG. 18 is a schematic diagram of a vent tube according to an eighth embodiment of the present invention.
FIG. 19 is a schematic diagram of the embodiment in FIG. 18 from another perspective.
FIG. 20 is a schematic sectional view of a vent tube according to a ninth embodiment of the present invention.
FIG. 21 is a schematic sectional view of a vent tube according to a tenth embodiment of the present invention.
FIG. 22 is a schematic sectional view of a vent tube according to an eleventh embodiment of the present invention.
FIG. 23 is a schematic sectional view of a vent tube according to a twelfth embodiment of the present invention.
FIG. 24 is a schematic diagram of an aerosol generating device according to a thirteenth embodiment of the present invention.
FIG. 25 is a schematic sectional view along H-H in FIG. 15.
FIG. 26 is a schematic sectional view along H-H in FIG. 15.

Descriptions of reference numerals

10. Atomizer; 11. Atomization core; 11a. Atomization cavity; 12. Mounting assembly; 12a. Mounting space; 12b. Flow guiding space; 12c. Air outlet channel; 12d. Main storage cavity; 12da. Liquid inlet channel; 12db. Main cavity; 12dc. Cavity; 121. Housing; 121a. Mounting cavity; 121b. First wall; 122. Sealing body; 122a. Air passage; 122b. Mounting hole; 123. Sealing member; 13. Liquid storage member; 14. Vent tube; 14a. Inclined surface; 14b. End plane; 14c. Vent channel; 14ca. First opening; 14cb. Second opening; 14cc. Channel body; 14cd. Vent slot; 15. Liquid absorbing member; 16. Mounting cover; 16a. Air inlet hole; 20. Storage member; 20a. Additional storage cavity; 20b. Inhalation channel.

DETAILED DESCRIPTION

It should be noted that in case of no conflict, technical features in embodiments of this application may be combined with each other, and the detailed description in the specific implementations should be understood as an explanation of the purpose of the embodiments of this application and should not be regarded as an improper limitation on the embodiments of this application.
In the description of the embodiments of this application, an orientation or position relationship of a "first direction" is based on an orientation or position relationship shown by an arrow X, an orientation or position relationship of a "second direction" is based on an orientation or position relationship shown by an arrow Y, and an orientation or position relationship of a "third direction" is based on an orientation or position relationship shown by an arrow Z. It should be understood that these orientation terms are only for convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that a mentioned apparatus or element needs to have a particular orientation or needs to be constructed and operated in a particular orientation, and therefore should not be construed as a limitation on the embodiments of this application.
An embodiment of this application provides an atomizer 10. The atomizer 10 is applied to an aerosol generating device. The atomizer 10 can convert an aerosol generating substrate into an aerosol, for a user to inhale.
Referring to FIG. 1, FIG. 2, FIG. 5, and FIG. 6, the atomizer 10 includes an atomization core 11, a mounting assembly 12, a liquid storage member 13, and a vent tube 14.
The atomization core 11 has an atomization cavity 11a.
The mounting assembly 12 is provided with a mounting space 12a and a vent channel 14c. The atomization core 11 is arranged in the mounting space 12a and jointly defines a main storage cavity 12d with the inner wall of the mounting space 12a.
The liquid storage member 13 is located in the main storage cavity 12d. The liquid storage member 13 stores an aerosol generating substrate.
The vent tube 14 is at least partially located in the main storage cavity 12d and is partially inserted into the liquid storage member 13. The vent tube 14 includes a through vent channel 14c. A first opening 14ca on one end of the vent channel 14c is in communication with the main storage cavity 12d. A second opening 14cb on an other end of the vent channel 14c is in communication with outside of the atomizer 10.
After the aerosol generating substrate contacts the atomization core 11, the aerosol generating substrate may be atomized by means of heating, and is mixed with an airflow in the atomization cavity 11a to form an aerosol. The aerosol is discharged from the atomization core 11 for a user to inhale.
It may be understood that, during aerosol inhalation by the user by using the atomizer 10, the outlet of the atomization cavity 11a is in communication with an oral cavity of the user through a channel in the aerosol generating device, so that the aerosol enters the mouth of the user through negative pressure generated from the inhalation of the user.
The mounting space 12a is configured to accommodate the atomization core 11 and the aerosol generating substrate.
The atomization core 11 is at least partially spaced apart from the inner wall of the mounting space 12a to define a main storage cavity 12d. The main storage cavity 12d is configured to accommodate the aerosol generating substrate. The aerosol generating substrate in the main storage cavity 12d contacts the atomization core 11, for the atomization core 11 to convert the aerosol generating substrate into an aerosol.
The aerosol generating substrate is a liquid fluid.
The atomization cavity 11a is isolated from the main storage cavity 12d, to prevent the aerosol generating substrate in the main storage cavity 12d from entering the atomization cavity 11a before being converted into an aerosol, thereby reducing a probability that the aerosol generating substrate directly enters the mouth of the user.
It may be understood that, the atomization cavity 11a is in communication with the outside of the atomizer 10. However, as the aerosol generating substrate in the main storage cavity 12d continuously depletes, air pressure in the space in the main storage cavity 12d turns to negative pressure relative to the air pressure of the atomization cavity 11a, affecting flowing of the aerosol generating substrate in the main storage cavity 12d, which impedes full contact of the stored aerosol generating substrate with the atomization core 11.
The liquid storage member 13 is in fluid communication with the atomization core 11, that is, the aerosol generating substrate can circulate from the one of the two to the other. A specific manner of implementing the fluid communication between the two is not limited. For example, the two are in direct contact. For another example, a channel is provided between the two, so that a fluid can pass through the channel to contact the two.
After the aerosol generating substrate contacts the liquid storage member 13, the aerosol generating substrate can be absorbed by the liquid storage member 13 and stored in a space in pores through a capillary action. At least partial pores are in communication with each other, so that the aerosol generating substrate can be transferred through the liquid storage member 13 to the atomization core 11 in fluid communication with the liquid storage member 13. In this way, when the aerosol generating substrate on the atomization core 11 depletes to a specific extent, an aerosol generating substrate can be replenished to the atomization core 11 through the liquid storage member 13. In addition, the presence of the pores allows the airflow to pass through the liquid storage member 13 through the pores in communication with each other. That is, a channel formed by the pores in communication with each other in the liquid storage member 13 not only allows airflow passage, but also allows the aerosol generating substrate to flow through.
It may be understood that, the structure in the liquid storage member 13 in which the pores are formed impedes flowing of the airflow in the pores, reducing efficiency of replenishing the airflow in the vent channel 14c to the main storage cavity 12d through the liquid storage member 13.
That the vent tube 14 is partially inserted into the liquid storage member 13 may mean that the part of the vent tube 14 located in the main storage cavity 12d is completely located in the liquid storage member 13 without being exposed from the liquid storage member 13, so that the first opening 14ca of the vent channel 14c in communication with the main storage cavity 12d is located inside the liquid storage member 13, and gas in the vent channel 14c can be replenished into the main storage cavity 12d merely by passing through a part of the liquid storage member 13; or may mean that a part of the part of the vent tube 14 located in the main storage cavity 12d extends beyond the liquid storage member 13 to outside of the liquid storage member 13, so that the first opening 14ca is directly in communication with a space in the main storage cavity 12d in which the liquid storage member 13 is not arranged, and an airflow in the vent channel 14c can be directly replenished into the space.
In the atomizer 10 in this embodiment of this application, the vent tube 14 is at least partially arranged in the liquid storage member 13, which helps improve efficiency of airflow diffusion from the first opening 14ca on the vent tube 14 to each region within the main storage cavity 12d, and further helps reduce adverse impact of negative pressure on flowing of the aerosol generating substrate within the main storage cavity 12d, and helps reduce a risk of a problem such as dry heating of the atomizer 10.
It may be understood that, a second opening 14cb on an other end of the vent channel 14c away from the main storage cavity 12d may be directly in communication with the outside of the atomizer 10. Alternatively, the second opening 14cb is in communication with another channel in the atomizer 10, and the channel is in direct communication with the outside of the atomizer 10.
It may be understood that, the pores in the liquid storage member 13 may be either macroscopically visible to naked eyes or microscopically invisible to naked eyes, provided that they can absorb the aerosol generating substrate through a capillary action while allowing airflow passage.
A specific form of the liquid storage member 13 is not limited. For example, the liquid storage member may be a fiber structure formed by weaving or twisting of chemical fibers such as cotton wool, sponge, polyester, or chinlon.
It may be understood that the aerosol generating substrate is a wetting liquid relative to the material of the liquid storage member 13, enabling the aerosol generating substrate to attach to or be absorbed by the liquid storage member 13.
A specific structural form of the mounting assembly 12 is not limited.
Exemplarily, referring to FIG. 2 and FIG. 4, the mounting assembly includes a housing and a sealing body. The housing is provided therein with a mounting cavity. The side of the mounting cavity along a first direction is open. The atomization core is located in the mounting cavity. The sealing body hermetically covers an open portion of the mounting cavity to form the mounting space. The atomization core, the sealing body, and the housing jointly define the main storage cavity. The sealing body is provided with a through mounting hole that extends along the first direction. The vent tube is inserted into the mounting hole and is hermetically attached to the inner wall of the mounting hole.
During fitting of the mounting assembly 12, the atomization core 11 is mounted into the mounting cavity 121a from an open portion of the mounting cavity 121a along the first direction, and then the sealing body 122 is caused to cover the open portion of the mounting cavity 121a along the first direction, so that a space between the sealing body 122 and the inner wall of the mounting cavity 121a forms the mounting space 12a, and a space defined among the atomization core 11, the sealing body 122, and a housing 121 forms the main storage cavity 12d. The mounting cover 16 is then arranged along the first direction to form a flow guiding space 12b. Therefore, the mounting assembly 12 can be formed merely by sequentially mounting the atomization core 11, the sealing body 122, and the mounting cover 16 along the first direction, thereby facilitating simplifying fitting steps and improving fitting efficiency.
The sealing body 122 is hermetically attached to the housing 121, thereby reducing a probability that the aerosol generating substrate in the main storage cavity 12d leaks into the flow guiding space 12b.
The vent tube 14 is hermetically attached to the inner wall of the mounting hole 122b, which can reduce a probability that the aerosol generating substrate in the main storage cavity 12d leaks into the flow guiding space 12b through the mounting hole 122b.
The rigidity of a material of the vent tube 14 is greater than the rigidity of a material of the sealing body 122, which can reduce an amount of deformation of the vent tube 14 when the sealing body 122 is elastically deformed, thereby reducing a risk of a diminished sectional area or even blockage in the vent channel 14c which prevents an airflow from entering the main storage cavity 12d.
A specific material of the vent tube 14 is not limited. For example, the vent tube may be made of engineering plastic or stainless steel.
It may be understood that the vent tube 14 extends along the first direction, so as to be directly inserted into the mounting hole 122b along the first direction, thereby facilitating fitting.
In some embodiments, referring to FIG. 2 to FIG. 4, the atomizer 10 further includes a mounting cover 16. The mounting cover 16 is arranged on one side of the mounting assembly 12 and defines a flow guiding space 12b with the mounting assembly 12. The mounting cover 16 has an air inlet hole 16a. The inlet of the atomization cavity 11a is in communication with the flow guiding space 12b. The vent channel 14c is in communication with the flow guiding space 12b and the main storage cavity 12d. The air inlet hole 16a is in communication with the flow guiding space 12b and the outside of the atomizer 10.
Through the air inlet hole 16a and the flow guiding space 12b, an airflow outside the atomizer 10 can enter the atomization cavity 11a through the inlet of the atomization cavity 11a.
It should be noted that the inlet of the atomization cavity 11a refers to an opening located upstream of the atomization cavity 11a along a direction of the airflow. The outlet of the atomization cavity 11a refers to an opening located downstream of the atomization cavity 11a along the direction of the airflow.
Therefore, the main storage cavity 12d achieves communication with the outside through the vent channel 14c, the flow guiding space 12b, the air inlet hole 16a, and the atomization cavity 11a, so that in a non-operating state of the atomizer 10, air from the outside can enter the main storage cavity 12d, so as to keep the fluidity of the aerosol generating substrate in the main storage cavity 12d while preventing a leakage in the non-operating state.
It may be understood that, the negative pressure generated during the inhalation by the user creates a risk that the aerosol generating substrate in the main storage cavity 12d leaks out of the atomizer 10 through the vent channel 14c. Through the flow guiding space 12b located upstream of the atomization cavity 11a along the direction of the airflow, the following effects are achieved: First, even if the aerosol generating substrate flows into the flow guiding space 12b through the vent channel 14c, a space in the flow guiding space 12b can accommodate a particular amount of the aerosol generating substrate. In addition, the flow guiding space 12b impedes entry of the aerosol generating substrate into the atomization cavity 11a, and reduces a probability that the aerosol generating substrate enters the oral cavity of the user through the atomization cavity 11a with the airflow under the negative pressure generated from the inhalation of the user. Second, because the flow guiding space 12b is located upstream of the atomization cavity 11a, the aerosol generating substrate in the flow guiding space 12b still enters the atomization cavity 11a even if it flows with the airflow, which can be converted into an aerosol under an action of the atomization core 11, thereby reducing a probability that the aerosol generating substrate in a liquid state enters the oral cavity of the user.
One or more vent channels 14c may be provided.
It may be understood that, referring to FIG. 1 to FIG. 4, the mounting assembly 12 is further provided with an air outlet channel 12c. The outlet of the atomization cavity 11a is in communication with the air outlet channel 12c. The air outlet channel 12c is in communication with the outside of the atomizer 10. Through the air outlet channel 12c, direct communication between the inside of the aerosol generating device and the oral cavity of the user is achieved, so that the aerosol generated in the atomization cavity 11a can enter the mouth of the user.
In some embodiments, referring to FIG. 2, the inlet of the atomization cavity 11a is located on one side of the flow guiding space 12b along the first direction, and the outlet of the air inlet hole 16a is located on an other side, which helps reduce a length of a flow path for the airflow to pass through the flow guiding space 12b, and helps reduce direction changes of the airflow, thereby further helping reduce inhalation resistance during the aerosol inhalation by the user, and helping improve user experience.
It may be understood that, during the aerosol inhalation by the user, negative pressure is formed in the flow guiding space 12b due to the flowing of the airflow, and air pressure at different positions in the flow guiding space 12b varies due to different flow rates. Larger negative pressure is formed in an area with a larger airflow flow rate.
In some embodiments, referring to FIG. 2 and FIG. 3, the area of the section of the inlet of the atomization cavity 11a perpendicular to the first direction is less than the area of any section of the flow guiding space 12b perpendicular to the first direction.
The above arrangement facilitates a higher flow rate of an airflow at the inlet of the atomization cavity 11a compared to a flow rate of an airflow within the guide space 12b, which helps reduce a flow rate of an airflow near the communication position between the vent channel 14c and the flow guiding space 12b, thereby reducing a possibility that the aerosol generating substrate is drawn from the vent channel 14c due to negative pressure generated from the flowing of the airflow.
In some embodiments, referring to FIG. 2 and FIG. 3, the areas of all sections of the outlet of the air inlet hole 16a perpendicular to the first direction are less than the area of any section of the flow guiding space 12b perpendicular to the first direction.
The above arrangement facilitates a higher flow rate of an airflow at the outlet of the air inlet hole 16a compared to a flow rate of an airflow within the guide space 12b, which helps reduce a flow rate of an airflow near the communication position between the vent channel 14c and the flow guiding space 12b, thereby reducing a possibility that the aerosol generating substrate is drawn from the vent channel 14c due to negative pressure generated from the flowing of the airflow.
It may be understood that, in the flow guiding space 12b, an airflow in an area closer to the inlet of the atomization cavity 11a has a higher flow rate, and forms negative pressure with a larger force.
In some embodiments, referring to FIG. 2, in a projection plane perpendicular to the first direction, the projection of the second opening 14cb of the vent channel 14c in communication with the flow guiding space 12b is located outside the projection range of the inlet of the atomization cavity 11a.
The above arrangement facilitates positioning of the second opening 14cb away from the inlet of the atomization cavity 11a, which further reduces a flow rate of an airflow near the second opening 14cb, thereby reducing a possibility that the aerosol generating substrate is drawn from the vent channel 14c due to negative pressure generated from the flowing of the airflow.
It may be understood that, in the flow guiding space 12b, an airflow in an area closer to the outlet of the air inlet hole 16a has a higher flow rate, and forms negative pressure with a larger force.
In some embodiments, referring to FIG. 2, in the projection plane perpendicular to the first direction, the projection of the second opening 14cb is located outside the projection range of the outlet of the air inlet hole 16a.
The above arrangement facilitates positioning of the second opening 14cb away from the outlet of the air inlet hole 16a, which further reduces a flow rate of an airflow near the second opening 14cb, thereby reducing a possibility that the aerosol generating substrate is drawn from the vent channel 14c due to negative pressure generated from the flowing of the airflow.
In some embodiments, referring to FIG. 2, the second opening 14cb of the vent channel 14c in communication with the flow guiding space 12b and the inlet of the atomization cavity 11a are located on the same side of the flow guiding space 12b along the first direction.
The above arrangement helps reduce the length of a path through which the vent channel 14c is in communication with the main storage cavity 12d and the flow guiding space 12b, so that external air can be more quickly replenished into the main storage cavity 12d, and the aerosol generating substrate can contact the atomization core 11 in time; helps reduce a flow rate of an airflow near the communication position; and helps reduce a length of a flow path through which an airflow enters the main storage cavity 12d through the vent channel 14c, to improve vent efficiency. During the inhalation by the user, the first direction is parallel to or forms an acute angle with a gravitational direction, which facilitates positioning of both the atomization cavity 11a and the vent channel 14c above the flow guiding space 12b, and facilitates deposition of the aerosol generating substrate flowing out from the vent channel 14c within the flow guiding space 12b while impeding its entry into the atomization cavity 11a.
In some embodiments provided with the sealing body 122, referring to FIG. 2 and FIG. 4, the sealing body 122 is provided with a through air passage 122a that extends along the first direction. The mounting cover 16 is located on the side of the sealing body 122 facing away from the atomization core 11 along the first direction. The mounting cover 16 is at least partially spaced apart from the sealing body 122 to form a flow guiding space 12b. The air passage 122a is in communication with the flow guiding space 12b and the atomization cavity 11a.
Therefore, the mounting assembly 12 can be formed merely by sequentially mounting the atomization core 11, the sealing body 122, and the mounting cover 16 along the first direction, thereby facilitating simplifying fitting steps and improving fitting efficiency.
Providing the air passage 122a achieves communication between the atomization cavity 11a and the flow guiding space 12b.
In some embodiments, referring to FIG. 2 and FIG. 3, a part of the atomization core 11 is located in the air passage 122a, and is in stop-fit with the inner wall of the air passage 122a along the first direction, to limit a position of the atomization core 11 122 along the first direction through the sealing body.
It may be understood that, in the embodiment in which a part of the atomization core 11 is located in the air passage 122a, the sealing body 122 is hermetically attached to the atomization core 11, to reduce a probability that the aerosol generating substrate leaks from the main storage cavity 12d.
In some embodiments provided with the air outlet channel 12c, referring to FIG. 4, the air outlet channel 12c extends through the housing 121 along the first direction to be in communication with the mounting cavity 121a. That is, the air outlet channel 12c also extends along the first direction.
The air outlet channel 12c, the atomization cavity 11a, and the air passage 122a all extend along the first direction and are in communication with each other in sequence, thereby helping reduce inhalation resistance and helping improve user experience.
In some embodiments, the air inlet hole 16a extends through the mounting cover 16 along the first direction.
In some embodiments, referring to FIG. 3 and FIG. 4, the mounting assembly 12 further includes a sealing member 123. The sealing member 123 is located on the side of the atomization core 11 away from the sealing body 122 along the first direction, and the sealing member 123 is sandwiched between the atomization core 11 and the housing 121 along the first direction, and is hermetically attached to the two.
Through the sealing action of the sealing body 122 and the sealing member 123, isolation between the main storage cavity 12d and the atomization cavity 11a is achieved.
It may be understood that the sealing body 122 is at least partially made of an elastic material, to achieve sealing through elastic deformation of the sealing body 122. A specific type of the elastic material for the sealing body 122 is not limited. For example, the elastic material may be rubber or silicone.
It may be understood that the sealing member 123 is at least partially made of an elastic material, to achieve sealing through elastic deformation of the sealing member 123. A specific type of the elastic material for the sealing member 123 is not limited. For example, the elastic material may be rubber or silicone.
It may be understood that one end of the vent tube 14 may extend into the flow guiding space 12b, or may be located in the mounting hole 122b and does not enter the flow guiding space 12b.
It may be understood that, through blocking of the inner wall of the pores in the liquid storage member 13, the aerosol generating substrate in the main liquid storage cavity is prevented from forming a liquid flow and directly flowing into the vent channel 14c, thereby reducing a probability that the aerosol generating substrate enters the flow guiding space 12b through the vent channel 14c.
In some embodiments provided with the liquid storage member 13, referring to FIG. 2, the first opening 14ca is located inside the liquid storage member 13.
In this way, stop-fit is achieved between the vent tube 14 and the liquid storage member 13, thereby reducing a probability that the first opening 14ca detaches from the liquid storage member 13 as a result of the vent tube 14 moving relative to the storage member 20 during use of the atomizer 10. In addition, because gas and the aerosol generating substrate need to enter and exit the first opening 14ca through the liquid storage member 13, the structure in the liquid storage member 13 in which the pores are formed helps reduce a probability that the aerosol generating substrate flows into the vent channel 14c during flowing of the gas.
It may be understood that, referring to FIG. 2, FIG. 5, and FIG. 6, the second opening 14cb is in communication with the flow guiding space 12b.
In some embodiments provided with the vent tube 14, referring to FIG. 2, FIG. 5, and FIG. 6, the vent tube 14 is partially inserted into the liquid storage member 13, to position the first opening 14ca of the vent channel 14c inside the liquid storage member 13.
In some embodiments, referring to FIG. 5 and FIG. 6, the main storage cavity 12d includes a main cavity 12db and a liquid inlet channel 12da. The atomization cavity 11a is isolated from the main cavity 12db. The liquid inlet channel 12da is in communication with the main cavity 12db and the outside of the atomizer 10.
An externally replenished aerosol generating substrate can be guided into the main cavity 12db through the liquid inlet channel 12da, to make up for the aerosol generating substrate in the main cavity 12db after depletion.
In some embodiments, referring to FIG. 2, FIG. 5, and FIG. 6, the liquid storage member 13 is located in the main cavity 12db. In some other embodiments, the liquid storage member 13 is arranged in both the main cavity 12db and the liquid inlet channel 12da.
In some embodiments in which the liquid storage member 13 is located in the main cavity 12db, referring to FIG. 5, the first opening 14ca is in communication with the liquid inlet channel 12da. The above arrangement helps gas enter the liquid inlet channel 12da more rapidly through the vent channel 14c, as the resistance of the liquid storage member 13 to the airflow is avoided, and helps replenish the gas into an additional storage cavity 20a in communication with the liquid inlet channel 12da more rapidly, thereby reducing adverse impact of negative pressure in the additional storage cavity 20a on the flowing of the aerosol generating substrate.
In some embodiments in which the vent tube 14 is provided and the liquid storage member 13 is located in the main cavity 12db, one end of the vent tube 14 extends into the liquid inlet channel 12da, so that the first opening 14ca is in communication with the liquid inlet channel 12da.
In some embodiments in which the liquid storage member 13 is located in the main cavity 12db, referring to FIG. 6, the communication position between the liquid inlet channel 12da and the main cavity 12db is located on the first wall 121b of the main cavity 12db. The liquid storage member 13 is spaced apart from the first wall 121b to form a cavity 12dc. The first opening 14ca is in communication with the cavity 12dc.
It may be understood that, the cavity 12dc is a part of the main cavity 12db. The volume of the liquid storage member 13 is less than that of the main cavity 12db to form the cavity 12dc.
The above arrangement avoids the resistance of the liquid storage member 13 to the airflow, which helps gas enter the liquid inlet channel 12da more rapidly through the vent channel 14c, thereby, and helps replenish the gas into the additional storage cavity 20a in communication with the liquid inlet channel 12da more rapidly, thereby reducing adverse impact of the negative pressure in the additional storage cavity 20a on the flowing of the aerosol generating substrate.
In some embodiments in which the vent tube 14 is provided and the liquid storage member 13 is located in the main cavity 12db, one end of the vent tube 14 extends into the cavity 12dc, so that the first opening 14ca is in communication with the cavity 12dc.
In some embodiments, referring to FIG. 2 and FIG. 4, the atomizer 10 further includes a liquid absorbing member 15. The liquid absorbing member 15 is arranged in the flow guiding space 12b. The liquid absorbing member 15 can absorb the aerosol generating substrate.
In this way, even if the aerosol generating substrate enters the flow guiding space 12b through the vent channel 14c, the liquid absorbing member 15 can absorb at least part of the aerosol generating substrate, thereby further reducing a probability that the aerosol generating substrate enters the atomization cavity 11a.
The liquid absorbing member 15 is provided with pores to absorb the aerosol generating substrate.
It may be understood that, the pores in the liquid absorbing member 15 may be either macroscopically visible to naked eyes or microscopically invisible to naked eyes, provided that they can absorb the aerosol generating substrate through a capillary action while allowing airflow passage.
A specific form of the liquid absorbing member 15 is not limited. For example, the liquid storage member may be a fiber structure formed by weaving or twisting of chemical fibers such as cotton wool, sponge, polyester, or chinlon.
It may be understood that the aerosol generating substrate is a wetting liquid relative to the material of the liquid absorbing member 15, enabling the aerosol generating substrate to attach to or be absorbed by the liquid absorbing member 15.
In some embodiments provided with the liquid absorbing member 15, referring to FIG. 5 and FIG. 6, in the projection plane perpendicular to the first direction, the projection of the second opening 14cb is located within the projection range of the liquid absorbing member 15, so that the aerosol generating substrate flowing out from the vent channel 14c can contact the liquid absorbing member 15 and be absorbed by the liquid absorbing member 15 as soon as possible. In some embodiments, structural forms and materials of the liquid absorbing member 15 and the liquid storage member 13 are the same, to simplify a manufacturing process.
In some embodiments, referring to FIG. 10 to FIG. 13, the vent tube 14 extends along the first direction, and the vent tube 14 is provided therein with the vent channel 14c. The external surface of the part of the vent tube 14 located inside the liquid storage member 13 is provided with the first opening 14ca. In a projection plane parallel to the first direction, the projection of the first opening 14ca at least partially forms an included angle a with the first direction, where 0° ≤ a < 90°.
Air outside the atomizer 10 can enter the pores of the liquid storage member 13 through the vent channel 14c via the first opening 14ca. In addition, through blocking of the inner wall of the pores in the liquid storage member 13, the aerosol generating substrate in the main liquid storage cavity is prevented from forming a liquid flow and directly flowing into the vent channel 14c through the first opening 14ca, thereby reducing a probability that the aerosol generating substrate leaks through the vent channel 14c.
During fitting of the atomizer 10, the liquid storage member 13 can be moved relative to the vent tube 14 along the first direction, so that the vent tube 14 is at least partially inserted into the liquid storage member 13 along the first direction. During the relative movement of the two along the first direction, the vent tube 14 abuts against a part of the liquid storage member 13 along the first direction, and applies a force along the first direction to the liquid storage member 13.
It may be understood that, due to the presence of the pores of the liquid storage member 13, the structural strength of the liquid storage member 13 is relatively low. Therefore, the vent tube 14 can squeeze the liquid storage member 13 along the first direction, causing compression of a part of the side surface of the liquid storage member 13 close to the vent tube 14 along the first direction. This compression reduces the spatial ratio of the pores in this part of the liquid storage member 13 compared to other regions of the liquid storage member 13, resulting in a denser physical structure in which the pores are formed, which impedes flowing of gas within this part.
Referring to FIG. 12 and FIG. 13, the projection of the physical structures forming the boundary of the first opening 14ca in the projection plane parallel to the first direction form line segments, and the extension directions of at least some of the line segments form an included angle a with a straight line extending along the first direction, where 0° ≤ a < 90°. It indicates that the extensions direction of at least some of the physical structures forming the boundary of the first opening 14ca are inclined to or parallel to a direction of the relative movement between the vent tube 14 and the liquid storage member 13, that is, the first direction. The above arrangement helps reduce or even eliminate the squeeze of some of the physical structures on the liquid storage member 13 in contact with the physical structures.
The above arrangement helps reduce or even eliminate the deformation of the liquid storage member 13 caused by the squeeze of the physical structures of the vent tube 14 defining the first opening 14ca during the relative movement of the liquid storage member 13 and the vent tube 14 along the first direction, which impedes the liquid storage member 13 in becoming denser under the force, thereby satisfying an airflow flow demand between the first opening 14ca and the pores of the liquid storage member 13. This helps stabilize the flowing of the airflow between the liquid storage member 13 and the vent channel 14c, and reduce a probability that the flowing of the aerosol generating substrate is affected by negative pressure formed in the main storage cavity 12d.
It may be understood that in the projection plane parallel to the first direction, the projection contour of the boundary of the first opening 14ca may be a straight line segment, or may be a circular arc line segment. In an embodiment in which the projection contour of the boundary of the first opening 14ca is a straight line segment, referring to FIG. 13, a straight line in which the straight line segment is located forms an included angle a with the straight line extending along the first direction. In an embodiment in which the projection contour of the boundary of the first opening 14ca is a circular arc line segment, a straight line on which at least part of a tangent line of the circular arc line segment is located forms an included angle a with the straight line extending along the first direction.
In some embodiments, referring to FIG. 13 and FIG. 14, the liquid storage member 13 is wrapped around at least part of the peripheral side of the vent tube 14 perpendicular to the first direction, which helps achieve stop-fit between the liquid storage member 13 and the vent tube 14 in any direction perpendicular to the first direction, and helps maintain positioning stability of the first opening 14ca and the liquid storage member 13 during the use of the atomizer 10.
In some embodiments, referring to FIG. 13 and FIG. 15, at least part of the side surface of the vent tube 14 along the first direction is an inclined surface 14a. The inclined surface 14a is a plane and forms an acute included angle with the first direction. The first opening 14ca includes a first sub-opening. The first sub-opening is at least partially located on the inclined surface 14a.
Designing the inclined surface 14a as a plane helps simplify a production process of the side surface of the vent tube 14 along the first direction.
That the inclined surface 14a forms an acute included angle with the first direction means that the normal line of the inclined surface 14a forms an acute angle with a straight line direction in which the first direction. Therefore, the force of contact between the vent tube 14 and the liquid storage member 13 may be divided into a component force along the first direction and a component force perpendicular to the first direction.
During the movement of the vent tube 14 relative to the liquid storage member 13 along the first direction, the above arrangement helps increase a contact area between the part of the vent tube 14 defining the first sub-opening and the liquid storage member 13, while makes only a partial force exerted by the vent tube 14 on the liquid storage member 13 squeeze the liquid storage member 13. Therefore, a force exerted on the liquid storage member 13 can be reduced when the inclined surface 14a and the liquid storage member 13 move relative to each other and abut against each other along the first direction, thereby helping impede the part of the liquid storage member 13 in contact with the inclined surface 14a in becoming denser, and helping satisfy an airflow flow demand between the first sub-opening on the inclined surface 14a and the pores of the liquid storage member 13.
It may be understood that in the projection plane parallel to the first direction, the included angle a between the projection of the contour of the first sub-opening on the inclined surface 14a and the straight line along the first direction satisfies 0° < a < 90°.
In some embodiments, referring to FIG. 15, the end surface of the vent tube 14 along the first direction is the inclined surface 14a. The first sub-opening is entirely located in the inclined surface 14a.
The end surface of the vent tube 14 along the first direction refers to the surface on the side of the end of the vent tube 14 away from the connection position, along the first direction, between the vent tube 14 and the mounting space 12a along the first direction.
That the end surface is an inclined surface 14a means that the end surface is a complete plane, which helps increase the size of the inclined surface 14a, thereby further reducing the intensity of pressure exerted on the liquid storage member 13 when the inclined surface 14a and the liquid storage member 13 move relative to each other and abut against each other along the first direction; and helps form the inclined surface 14a one time during manufacturing through trimming, abrasion cutting, or the like, thereby reducing a size matching requirement during the manufacturing of the inclined surface 14a and simplifying the manufacturing process.
Positioning the first sub-opening completely in the inclined surface 14a helps increase a quantity of pores in communication with the first sub-opening, thereby improving airflow flowing efficiency.
In some embodiments, referring to FIG. 13, the side surface of the vent tube 14 along the first direction further includes an end plane 14b. The end plane 14b extends perpendicularly to the first direction and is connected to the inclined surface 14a. The inclined surface 14a is located on the side of the end plane 14b close to the connection position between the vent tube 14 and the inner wall of the mounting space 12a along the first direction.
During the movement of the vent tube 14 relative to the liquid storage member 13 along the first direction, the end plane 14b contacts and squeezes the liquid storage member 13 prior to the inclined surface 14a, which helps reduce an amount of compression of the part of the liquid storage member 13 opposite to the inclined surface 14a along the first direction, and helps satisfy the airflow flow demand between the first sub-opening on the inclined surface 14a and the pores of the liquid storage member 13.
In some embodiments, at least part of the side surface of the vent tube 14 along the first direction is a circular arc surface. The first sub-opening is at least partially located on the circular arc surface.
The above arrangement helps increase a contact area between the part of the vent tube 14 defining the first sub-opening and the liquid storage member 13 along the first direction, and makes only a part of a force exerted by the vent tube 14 on the liquid storage member 13 be transmitted to the liquid storage member 13 along the first direction, so that the intensity of pressure exerted on the liquid storage member 13 can be reduced, thereby helping impede the part of the liquid storage member 13 in contact with the circular arc surface in become denser, and helping satisfy the airflow flow demand between the first sub-opening on the inclined surface 14a and the pores of the liquid storage member 13.
It may be understood that the circular arc surface may protrude along the first direction, or may recess along the first direction.
It may be understood that the liquid storage member 13 may have an insertion hole extending along the first direction pre-formed therein. The side of the insertion hole is open along the first direction, so that the vent tube 14 can be inserted into the insertion hole through the open portion of the insertion hole along the first direction, and the vent tube 14 can abut against the bottom wall of the insertion hole along the first direction. Alternatively, the vent tube 14 is directly inserted into the liquid storage member 13 along the first direction, and squeezes a part of the liquid storage member 13 along the first direction, so that the vent tube 14 is at least partially embedded into the liquid storage member 13.
A specific quantity of the first sub-opening is not limited, which may be one or more.
In some embodiments, referring to FIG. 14 and FIG. 16, the first opening 14ca includes a second sub-opening. The second sub-opening is located on the side wall of the vent tube 14 perpendicular to the first direction.
During the movement of the vent tube 14 relative to the liquid storage member 13 along the first direction, the part of the vent tube 14 defining the second sub-opening does not exert any force on the liquid storage member 13 along the first direction. Therefore, the spatial ratio of the pores in the part of the liquid storage member 13 located near the second sub-opening is less affected by the interaction force between the vent tube 14 and the liquid storage member 13, which helps satisfy the airflow flow demand between the second sub-opening and the pores of the liquid storage member 13.
It may be understood that, referring to FIG. 14, in the projection plane parallel to the first direction, the included angle a between the projection of the contour of the second sub-opening on the inclined plane and the straight line along the first direction satisfies is equal to 0°.
A specific manner of forming the second sub-opening is not limited.
Exemplarily, referring to FIG. 14 and FIG. 16, the vent channel 14c includes a channel body 14cc and a vent slot 14cd. The channel body 14cc extends along the first direction. The vent slot 14cd extends along the second direction and is in communication with the channel body 14cc. The first direction intersects the second direction. The side of the vent slot 14cd along the second direction is open to form at least part of the second sub-opening.
In this way, an airflow flow path in which the channel body 14cc, the vent slot 14cd, and the pores of the liquid storage member 13 are in communication with each other is formed. The channel body 14cc is in communication with the outside of the atomizer 10, so that external air can enter the pores of the liquid storage member 13 through the channel body 14cc and the vent slot 14cd in sequence.
In some embodiments, the first direction is perpendicular to the second direction.
In some embodiments, referring to FIG. 17, the vent slot 14cd extends through the vent tube 14 along the second direction.
The above arrangement helps increase a quantity of the second sub-opening and the total area of the contour defined by the second sub-opening, thereby reducing a risk of poor airflow circulation caused by blocking of the second sub-opening; and omits a need to consider the depth dimension of the vent slot 14cd along the second direction during manufacturing the vent slot 14cd, thereby helping reduce manufacturing difficulty and improve manufacturing efficiency.
In some embodiments, the area of the contour defined by the second sub-opening 14cc is not less than the area of the smallest section of the channel body perpendicular to the first direction.
The contour defined by the second sub-opening refers to a pattern formed by the structure of the vent tube 14 defining the second sub-opening defined by covering the second sub-opening along an original extension direction of the structure. The surface area of the pattern is the area of the contour defined by the second sub-opening.
In this way, an airflow flowing through the second sub-opening satisfies an airflow flow demand in the channel body 14cc, which helps reduce a probability that a negative pressure state occurs in the main storage cavity 12d.
In some embodiments, referring to FIG. 17, the side of the vent slot 14cd along a third direction is open. The third direction is respectively perpendicular to the first direction and the second direction.
The above arrangement helps increase the total area of the contour defined by the second sub-opening, thereby reducing a risk of poor airflow circulation caused by blocking of the second sub-opening.
During manufacturing of the vent tube 14, a part of the blank forming the vent tube 14 may be cut off along the second direction, and then the part is peeled off along the third direction, to form the vent slot 14cd.
In some embodiments in which the vent slot 14cd extends through the vent tube 14 along the second direction, referring to FIG. 17, the side of the vent slot 14cd along the third direction is open.
In this way, the vent slot 14cd can be formed through cauterization, cutting, or the like along the second direction, thereby reducing manufacturing difficulty and improving manufacturing efficiency of the vent slot 14cd.
In some embodiments, referring to FIG. 18 and FIG. 19, the side of the vent slot 14cd along the first direction is open, and a part of the inner wall of the vent slot 14cd forms the end surface on the end of the vent tube 14 away from the connection location between the vent tube 14 and the inner wall of the mounting space 12a along the first direction.
In this way, a part of the liquid storage member 13 can enter the vent slot 14cd along the first direction, thereby helping reduce an amount of compression of the part of the liquid storage member 13 along the first direction, so that the airflow can flow between the part of the liquid storage member 13 and the vent slot 14cd.
In some embodiments, referring to FIG. 19, the side of the channel body 14cc along the first direction is open to be in communication with the open portion of the vent slot 14cd along the first direction. The above arrangement helps simplify manufacturing difficulty of the channel body 14cc.
In some embodiments, the first opening 14ca is located outside the liquid storage member 13.
That is, the vent tube 14 extends through the liquid storage member 13 along the first direction. To be specific, the movement of the vent tube 14 relative to the liquid storage member 13 along the first direction generates squeeze on the liquid storage member 13 along the first direction only during fitting of the atomizer 10, and the vent tube 14 does not squeeze the liquid storage member 13 along the first direction during daily use of the atomizer 10 by the user.
During daily use, due to factors such as vibration of the atomizer 10, the liquid storage member 13 can move relative to the vent tube 14. However, a risk that the vent tube 14 breaks through the liquid storage member 13 or detaches from the liquid storage member 13 exists.
In some embodiments in which the first opening 14ca is located inside the liquid storage member 13, referring to FIG. 14, the spacing between the edge of the first opening 14ca and the outer surface of the liquid storage member 13 along the first direction ranges from 3 millimeters (mm) to 10 mm. That is, 3 mm ≤ L1 ≤ 10 mm.
In this way, a travel of the first opening 14ca for exposing the liquid storage member 13 along the first direction is increased, which helps reduce a probability that the first opening 14ca exposes the liquid storage member 13 as a result of the liquid storage member 13 being allowed to move relative to the vent tube 14, and helps reduce a risk that the first opening 14ca detaches from the liquid storage member 13 as a result of the liquid storage member 13 being allowed to move relative to the vent tube 14, thereby reducing a risk that the aerosol generating substrate directly flows into the vent channel 14c.
The specific spacing between the edge of the first opening 14ca and the outer surface of the liquid storage member 13 along the first direction may be 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, or the like.
A specific structural form of the mounting assembly is not limited.
In some embodiments provided with a housing 121 and a sealing body 122, referring to FIG. 12, the mounting assembly includes a housing 121 and a sealing body 122. The housing 121 is provided with a mounting cavity 121a. The side of the mounting cavity 121a along the first direction is open. The atomization core 11 is located in the mounting cavity 121a. The sealing body 122 hermetically covers the open portion of the mounting cavity 121a and is hermetically attached to the atomization core 11 along the first direction. The atomization core 11, the sealing body 122, and the housing 121 jointly define the main storage cavity 12d. At least one of the inner wall of the mounting cavity 121a along the first direction and the side surface of the sealing body 122 along the first direction is provided with a vent tube 14.
During fitting of the mounting assembly 12, the vent tube 14 is inserted into the liquid storage member 13 along the first direction, and then the sealing body 122 is caused to cover the open portion of the mounting cavity 121a along the first direction, so that a space between the sealing body 122 and the inner wall of the mounting cavity 121a forms the mounting space 12a, a space defined by the atomization core 11, the sealing body 122, and the housing 121 forms the main storage cavity 12d, and the liquid storage member 13 is located in the main storage cavity 12d.
In this way, a direction in which the vent tube 14 is inserted into the liquid storage member 13 is the same as a direction in which the sealing body 122 covers the mounting cavity 121a, which helps improve fitting efficiency.
It may be understood that the vent tube 14 may be provided on only the inner wall of the mounting cavity 121a, or the vent tube 14 may be provided on only the surface of the sealing body 122, or the vent tube 14 may be provided on both the inner wall of the mounting cavity 121a and the sealing body 122.
In some embodiments, the length of the vent channel 14c along an extension direction of the vent channel ranges from 5 mm to 20 mm.
In this way, a risk that the aerosol generating substrate entering the vent channel 14c flows out of the vent channel 14c and enters the flow guiding space 12b is reduced. In addition, the length of the vent channel 14c is set within the range, which facilitates arrangement in the mounting assembly 12, and helps improve structure compactness.
The specific length of the vent channel 14c along the extension direction of the vent channel may be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, or the like.
In some embodiments, the area of the section of the vent channel 14c perpendicular to the extension direction of the vent channel ranges from 0.02 square millimeters (mm²) to 0.8 mm².
Within the dimension range, a capillary action between the surface tension of the aerosol generating substrate that enters the vent channel 14c and the air pressure can cause a liquid film of the aerosol generating substrate in the vent channel 14c forms a hermetic space in the main storage cavity 12d, thereby reducing a probability that the aerosol generating substrate flows out of the vent channel 14c and enters the flow guiding space 12b, and reducing a probability that the additional storage cavity 20a transfers excessive aerosol generating substrates to the main storage cavity 12d.
The area of the section of the vent channel 14c perpendicular to the extension direction of the vent channel may be 0.02 mm², 0.03 mm², 0.05 mm², 0.08 mm², 0.1 mm², 0.2 mm², 0.3 mm², 0.4 mm², 0.5 mm², or 0.6 mm².
In some embodiments provided with the channel body 14cc, the area of the section of the channel body 14cc perpendicular to the first direction ranges from 0.02 mm² to 0.8 mm².
Within the dimension range, a capillary action between the surface tension of the aerosol generating substrate that enters the vent channel 14c and the air pressure can cause the aerosol generating substrate in the vent channel 14c to form a liquid film, thereby reducing the probability that the aerosol generating substrate flows out of the vent channel 14c.
The area of the section of the channel body 14cc perpendicular to the extension direction of the vent channel may be 0.02 mm², 0.03 mm², 0.05 mm², 0.08 mm², 0.1 mm², 0.2 mm², 0.3 mm², 0.4 mm², 0.5 mm², or 0.6 mm².
The shape of the section of the vent tube 14 perpendicular to the first direction is not limited. For example, referring to FIG. 17, the section is in an annular shape, which helps reduce an amount of deformation of the vent tube 14 under an external force. Referring to FIG. 20, the section is in an elliptical annular shape. Referring to FIG. 21, the section is in a triangular ring shape. Referring to FIG. 22 and FIG. 23, the section is in a polygonal ring shape. The above arrangement helps impede rotation of the vent tube 14 relative to the mounting hole 122b.
A specific material of the vent tube 14 is not limited. For example, the vent tube may be made of stainless steel or engineering plastic.
A specific material of the sealing member 123 is not limited. For example, the sealing member may be made of a silicon rubber or fluororubber.
A specific manner of forming the inclined surface 14a on the vent tube 14 is not limited. For example, the tube is cut at a specific included angle with the first direction through abrasion cutting or the like, to form the inclined surface 14a on a cut section.
A specific manner of forming the vent slot 14cd on the vent tube 14 is not limited. For example, a partial material of the tube is removed through laser cutting, to form the vent slot 14cd.
An embodiment of this application further provides an aerosol generating device. The aerosol generating device includes the atomizer 10 in any of the foregoing embodiments.
In some embodiments, referring to FIG. 7, FIG. 8, FIG. 9, and FIG. 24 to FIG. 26, the aerosol generating device further includes a storage member 20. The storage member 20 is provided therein with an additional storage cavity 20a. The main storage cavity 12d is in communication with the additional storage cavity 20a. The second opening 14cb of the vent channel 14c is in communication with outside of the aerosol generating device.
An airflow enters the main storage cavity 12d through the vent channel 14c, and then flows into the additional storage cavity 20a, so that an aerosol generating device in the additional storage cavity 20a can enter the main storage cavity 12d, to be replenished into the main storage cavity 12d after depletion of the aerosol generating substrate.
The above arrangement helps improve efficiency of replenishing the aerosol generating substrate in the additional storage cavity 20a into the main storage cavity 12d.
In some embodiments in which the air inlet hole 16a is provided, the air inlet hole 16a is in communication with outside of the aerosol generating device. An airflow in the air inlet hole 16a enters the main storage cavity 12d through the vent channel 14c, and then enters the additional storage cavity 20a, so that the aerosol generating device in the additional storage cavity 20a can enter the main storage cavity 12d, to be replenished into the main storage cavity 12d after depletion of an aerosol generating substrate.
The storage member 20 is provided therein with an inhalation channel 20b. The inhalation channel 20b is in communication with the outlet of the atomization cavity 11a and is in communication with the outside of the aerosol generating device, so as to be in communication with an oral cavity of a user during inhalation by the user, so that the aerosol can enter the mouth of the user.
In the embodiment provided with the air outlet channel 12c, the atomization cavity 11a, the air outlet channel 12c, and the inhalation channel 20b are in communication in sequence.
In some embodiments, referring to FIG. 9, the inhalation channel 20b extends through the storage member 20 along the first direction, to help reduce inhalation resistance to the user during the inhalation.
During the aerosol inhalation by the user, the atomization core 11 depletes the aerosol generating substrate in the main storage cavity 12d. As the aerosol generating substrate in the main storage cavity 12d decreases, the aerosol generating substrate in the additional storage cavity 20a enters the main storage cavity 12d. Moreover, an external airflow enters the additional storage cavity 20a through an airflow flow path from the vent channel 14c to the main storage cavity 12d, to reduce a probability that the aerosol generating substrate is prevented from flowing out as a result of negative pressure being formed in the additional storage cavity 20a.
It may be understood that the storage member 20 is detachably arranged. That is, an old storage member 20 may be dismounted from the aerosol generating device to mount a new storage member 20, to help replenish the aerosol generating substrate, prolong a service life of the aerosol generating device, and help the user flexibly replace, according to a requirement and a preference, storage members 20 provided with aerosol generating substrates of different tastes.
In some embodiments provided with the liquid inlet channel 12da, referring to FIG. 9, the liquid inlet channel 12da is configured to be in communication with the additional storage cavity 20a.
The storage member 20 may be detachably connected to the atomizer 10, or may be detachably connected to another component in the aerosol generating device.
In some embodiments, the aerosol generating device further includes a power supply assembly. The power supply assembly is electrically connected to the atomization core 11 to provide electric energy to the atomization core 11, so that the atomization core 11 can convert the aerosol generating substrate into an aerosol.
The power supply assembly may be detachably connected to the atomizer 10, or may be detachably connected to another component in the aerosol generating device.
The power supply assembly includes a battery.
The embodiments/implementations of this application may be combined with each other in a case that no conflict occurs.
The foregoing descriptions are merely preferred technical solutions in the embodiments of this application, and are not intended to limit the protection scope of the embodiments of this application. For a person skilled in the art, the embodiments of this application may have various modifications and changes. Any modification, equivalent replacement, improvement, or the like made within the principle of the embodiments of this application shall fall within the protection scope of the embodiments of this application.

Claims

An atomizer, characterized by comprising:
an atomization core, having an atomization cavity;

a mounting assembly, provided with a mounting space, wherein the atomization core is arranged in the mounting space and jointly defines a main storage cavity with the inner wall of the mounting space;

a liquid storage member, located in the main storage cavity, wherein the liquid storage member stores an aerosol generating substrate;

a vent tube, at least partially located in the main storage cavity and partially inserted into the liquid storage member, wherein the vent tube comprises a through vent channel, a first opening on one end of the vent channel is in communication with the main storage cavity, and a second opening on an other end of the vent channel is in communication with outside of the atomizer.
The atomizer of claim 1, characterized in that the mounting assembly comprises a housing and a sealing body, the housing is provided therein with a mounting cavity, the side of the mounting cavity along a first direction is open, the atomization core is located in the mounting cavity, the sealing body hermetically covers an open portion of the mounting cavity to form the mounting space, the atomization core, the sealing body, and the housing jointly define the main storage cavity, the sealing body is provided with a through mounting hole that extends along the first direction, and the vent tube is inserted into the mounting hole and is hermetically attached to the inner wall of the mounting hole.
The atomizer of claim 1 or 2, characterized by further comprising a mounting cover, wherein the mounting cover is arranged on the side of the mounting assembly and defines a flow guiding space with the mounting assembly, the mounting cover has an air inlet hole, the inlet of the atomization cavity is in communication with the flow guiding space, the vent channel is in communication with the flow guiding space and the main storage cavity, and the air inlet hole is in communication with the flow guiding space and the outside of the atomizer.
The atomizer of claim 3, characterized in that the inlet of the atomization cavity is located on one side of the flow guiding space along a first direction, the outlet of the air inlet hole is located on an other side, and the area of the section of the inlet of the atomization cavity perpendicular to the first direction is less than the area of any section of the flow guiding space perpendicular to the first direction.
The atomizer of claim 3 or 4, characterized in that in a projection plane perpendicular to the first direction, the projection of the second opening of the vent channel in communication with the flow guiding space is located outside the projection range of the inlet of the atomization cavity.
The atomizer of any one of claims 3 to 5, characterized in that the second opening of the vent channel in communication with the flow guiding space and the inlet of the atomization cavity are located on the same side of the flow guiding space along the first direction.
The atomizer of any one of claims 1 to 6, characterized in that the main storage cavity comprises a main cavity and a liquid inlet channel, the atomization cavity is isolated from the main cavity, and the liquid inlet channel is in communication with the main cavity and the outside of the atomizer;
the first opening is in communication with the liquid inlet channel; and/or

the communication position between the liquid inlet channel and the main cavity is located on the first wall of the main cavity, the liquid storage member is spaced apart from the first wall to form a cavity, and the first opening is in communication with the cavity.
The atomizer of any one of claims 1 to 6, characterized in that the first opening is located inside the liquid storage member.
The atomizer of claim 8, characterized in that the vent tube extends along the first direction, the external surface of the part of the vent tube located inside the liquid storage member is provided with the first opening, and in a projection plane parallel to the first direction, the projection of the first opening at least partially forms an included angle a with the first direction, wherein 0° ≤ a < 90°.
The atomizer of claim 9, characterized in that the side surface of the vent tube along the first direction is at least partially an inclined surface, the inclined surface is a plane and forms an acute included angle with the first direction, the first opening comprises a first sub-opening, and the first sub-opening is at least partially located on the inclined surface.
The atomizer of claim 10, characterized in that the end surface of the vent tube along the first direction is the inclined surface, and the first sub-opening is entirely located on the inclined surface; or
the side surface of the vent tube along the first direction further comprises an end plane, the end plane extends perpendicularly to the first direction and is connected to the inclined surface, and the inclined surface is located on the side of the end plane close to the connection position between the vent tube and the inner wall of the mounting space along the first direction.
The atomizer of any one of claims 9 to 11, characterized in that the first opening comprises a second sub-opening, and the second sub-opening is located on the side wall of the vent tube perpendicular to the first direction.
The atomizer of claim 12, characterized in that the vent channel comprises a channel body and a vent slot, the channel body extends along the first direction, the vent slot extends along the second direction and is in communication with the channel body, the first direction intersects the second direction, and the side of the vent slot along the second direction is open to form at least part of the second sub-opening.
The atomizer of claim 12 or 13, characterized in that the area of the contour defined by the second sub-opening is not less than the area of the smallest section of the channel body perpendicular to the first direction; and/or
the side of the vent slot along a third direction is open, and the third direction is respectively perpendicular to the first direction and the second direction.
An aerosol generating device, characterized by comprising a storage member and the atomizer of any one of claims 1 to 14, the storage member is provided therein with an additional storage cavity, and the main storage cavity is in communication with the additional storage cavity.