CN118160975A - Airway tube assembly and aerosol generating device - Google Patents

Abstract

The application provides an air passage pipe assembly and an aerosol generating device, in particular to an air passage pipe assembly, which is provided with a first air flow passage, a second air flow passage and a third air flow passage which are communicated with each other.

Description

Airway tube assembly and aerosol generating device

Technical Field

The application relates to the field of atomization, in particular to an airway tube assembly and an aerosol generating device.

Background

The aerosol generating device is used for atomizing aerosol generating substrates, and with the development of the electronic atomization system industry, the mixed aerosol generating device combining the solid aerosol generating substrates for baking stems and leaves in a heating and non-burning mode and the liquid aerosol generating substrates containing essence and perfume in an electric heating mode is the main research direction of the current market.

In one use scenario, a hybrid aerosol-generating device comprises a nebulizer for heating a combined liquid aerosol-generating substrate therein to generate a first aerosol using an electrical heating means and a heating unit for heating an aerosol-generating article to generate a second aerosol using a heating non-combustion means.

However, the volume of the hybrid aerosol generating device is generally comparable to that of a conventional heated non-combustion appliance, and how to introduce a first aerosol into a solid aerosol-generating article in a limited volume to mix with a second aerosol to form a hybrid aerosol, so as to satisfy the user experience, is a problem to be solved.

Disclosure of Invention

The application provides an airway tube assembly and an aerosol generating device, which can guide second aerosol generated by an atomizer into an aerosol generating product to be mixed with the second aerosol so as to meet the use experience of a user.

In order to solve the technical problems, the first technical scheme adopted by the application is as follows: there is provided an airway tube assembly having a receiving cavity for receiving an aerosol-generating article, and comprising: the mounting base is provided with a first accommodating cavity, the bottom wall of the first accommodating cavity is provided with a first airflow channel, the side wall of the first accommodating cavity is provided with a second airflow channel, one end of the first airflow channel is used for being communicated with the outside, one end of the second airflow channel is communicated with the first airflow channel, and the other end of the second airflow channel extends to the top end of the mounting base; the mounting top seat is arranged at the top end of the mounting base and is provided with a second accommodating cavity, and the second accommodating cavity is communicated with the first accommodating cavity to form the accommodating cavity in a matching way, wherein the side wall of the second accommodating cavity is provided with a first through hole; the first air passage connector is at least partially sleeved on the outer side wall of the mounting top seat, the inner side surface of the first air passage connector is provided with a first groove, and the first groove is matched with the mounting top seat to form a third air passage communicated with the second air passage and the first through hole.

In an embodiment, the mounting top seat comprises a connecting part and an extending part, and the connecting part is sleeved in the first accommodating cavity; the extension part extends out of the first accommodating cavity to define the second accommodating cavity, and the first through hole is positioned on the side wall of the extension part; the first air passage joint is sleeved on the outer side face of the extension part, and the first groove is arranged corresponding to the first through hole so as to form the third air passage in a matched mode with the extension part.

In one embodiment, the second gas flow passage extends axially of the airway tube assembly; the first air flow channel comprises an axial air channel which is arranged in parallel with the axial direction and a transverse air channel which is arranged perpendicular to the axial direction; one end of the axial air passage, which is close to the mounting top seat, is a closed end, and the other end of the axial air passage is an open end and is used for being communicated with the outside; the lateral air passage communicates the axial air passage with the second air flow passage.

In an embodiment, the number of the transverse air passages and the second air flow passages is the same and is a plurality of, and the number of the axial air passages is one; the first ends of the transverse air passages are communicated with the axial air passages, and the transverse air passages are communicated with the second air flow passages in a one-to-one correspondence manner.

In an embodiment, the airway tube assembly further comprises a sealing plug; the first end of the transverse air passage is communicated with the axial air passage, the second end of the transverse air passage is an open end, the sealing plug is arranged at the second end of the transverse air passage, and the second air passage is communicated with the transverse air passage through an opening on the side wall of the transverse air passage.

In an embodiment, further comprising: the second air passage connector is arranged at the bottom of the mounting base and is provided with a second through hole which is parallel to the axial direction of the air passage pipe assembly and communicated with the first air passage, and the second through hole is also communicated with the outside.

In an embodiment, the surface of the second air passage joint facing away from the mounting base is provided with a mounting groove, the second through hole penetrates through the bottom wall of the mounting groove, and the bottom wall of the mounting groove is further provided with an annular sealing strip surrounding the second through hole, so that the second through hole is in sealing connection with the outside.

In an embodiment, the number of the first through holes is one or more, the first groove is an annular groove, and the first groove and the mounting top seat are matched to form an annular third air flow channel.

In one embodiment, the outer surface of the side wall of the mounting base is provided with a plurality of depressions extending along the axial direction of the air passage pipe assembly, the depressions are arranged at intervals along the circumferential direction of the outer surface of the side wall of the mounting base, and the depressions and the second air flow channels are alternately arranged along the circumferential direction of the outer surface of the side wall of the mounting base; the first air passage connector is at least partially sleeved on the top end of the outer side wall of the mounting base, the inner side face of the first air passage connector is provided with a plurality of protrusions, the protrusions and the recesses are the same in number, each protrusion is matched with each recess, and the protrusions are embedded into the recesses in a one-to-one correspondence manner.

In an embodiment, the first air flow channel is detachably connected with the bottom wall of the first accommodating cavity; and/or the second air flow channel is detachably connected with the side wall of the first accommodating cavity.

In an embodiment, two ends of the second air flow channel are respectively communicated with the first air flow channel and the third air flow channel, and other parts of the second air flow channel are arranged at intervals with the side wall of the first accommodating cavity.

In order to solve the technical problems, the application adopts another technical scheme that: there is provided an aerosol-generating device comprising: a housing; an airway tube assembly disposed within the housing, the airway tube assembly being any of the airway tube assemblies described above; an atomizer disposed within the housing and at a bottom of the airway tube assembly, the atomizer for atomizing an aerosol-generating substrate to generate a first aerosol; a heater assembly disposed within the housing for heating an aerosol-generating article housed within the airway tube assembly to produce a second aerosol; the power supply assembly is electrically connected with the heating element assembly and the atomizer and is used for supplying power to the heating element assembly and the atomizer; the first aerosol sequentially passes through the mist outlet, the first airflow channel, the second airflow channel and the third airflow channel to enter an aerosol generating product communicated with the third airflow channel.

Unlike the prior art, the airway tube assembly and the aerosol generating device provided by the application have a containing cavity for containing an aerosol generating product; the aerosol generating device comprises a mounting base, a mounting top seat and a first air passage joint; specifically, the mounting base is provided with a first accommodating cavity; the bottom wall of the first accommodating cavity is provided with a first airflow channel, and the side wall of the first accommodating cavity is provided with a second airflow channel; one end of the second air flow channel is communicated with the first air flow channel, and the other end of the second air flow channel extends to the top end of the mounting base; the mounting top seat is arranged at the top end of the mounting base and is provided with a second accommodating cavity; the second accommodating cavity is communicated with the first accommodating cavity to form an accommodating cavity in a matching way; wherein the side wall of the second accommodating cavity is provided with at least one first through hole which is used for communicating with the hollow section of the aerosol-generating product inserted into the second accommodating cavity; the first air passage joint is at least partially sleeved on the outer side wall of the mounting top seat; the inner side surface of the first air passage joint is provided with a first groove, and the first groove is matched with the mounting top seat to form a third air passage communicated with the second air passage and the first through hole. Specifically, through the arrangement mode, the first airflow channel, the second airflow channel and the third airflow channel can guide external air, such as first aerosol generated by the atomizer, into the aerosol generating product so as to be mixed with second aerosol generated in the aerosol generating product to form mixed aerosol, so that the use experience of a user is improved.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

fig. 1 is a schematic structural view of an embodiment of an aerosol-generating system according to the present application;

Fig. 2 is a schematic structural view of an embodiment of an aerosol-generating article according to the present application;

fig. 3 is a cross-sectional view of the aerosol-generating system shown in fig. 1;

FIG. 4 is an enlarged view of the structure of the airway tube assembly of FIG. 3;

FIG. 5 is a schematic diagram of an embodiment of an airway tube assembly provided by the present application;

FIG. 6 is a schematic view of the mounting base of FIG. 5;

FIG. 7 is a schematic view of the mounting top base of FIG. 5;

FIG. 8 is a schematic view of the mounting top seat of FIG. 7 at another angle;

FIG. 9 is a schematic view of the first air passage joint as in FIG. 5;

FIG. 10 is a schematic view of the mounting top seat of FIG. 9 at another angle;

FIG. 11 is a schematic view of the second airway adapter as in FIG. 5;

FIG. 12 is a schematic view of the second airway adapter of FIG. 10 at another angle;

Fig. 13 is an enlarged view of the structure of the air duct assembly and the heating element assembly of fig. 3 in a coupled state.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

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

The present application will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an aerosol-generating system according to the present application. The aerosol-generating system 300 comprises an aerosol-generating device 100 and an aerosol-generating article 200, wherein the aerosol-generating article 200 comprises a solid aerosol-generating substrate of plant stems and leaves having a specific aroma, the aerosol-generating device 100 having a receiving cavity a (see fig. 3) for receiving a portion of the aerosol-generating article 200.

Specifically, the solid aerosol-generating substrate of plant stems and leaves containing specific aroma can generate aerosol with specific aroma, and the aerosol-generating product 200 is heated under low-temperature baking condition, generally not higher than 350 ℃, so that the release of harmful substances in the aerosol can be greatly reduced, and an effective healthy leisure mode is provided for consumers.

Referring to fig. 2, fig. 2 is a schematic structural view of an embodiment of an aerosol-generating article according to the present application. The aerosol-generating article 200 generally comprises a matrix segment 1, a hollow segment 2 and a filter segment 3. Wherein the substrate segment 1 is provided with a solid aerosol-generating substrate for generating a second aerosol under heating conditions; the hollow section 2 is used for collecting and cooling the aerosol generated by the substrate section 1 to cool the temperature of the second aerosol to a temperature range suitable for user inhalation; the filter segment 3 is used for filtering impurities in the second aerosol for the user.

In an embodiment, the side wall of the hollow section 2 is provided with one or more air passing holes 4, so that external air can enter the aerosol-generating article 200 through the air passing holes 4, for example, the air passing holes 4 can enable first aerosol generated by the atomizer to enter the hollow section 2 through the air passing holes 4 to be mixed with second aerosol in the hollow section 2 to form mixed aerosol, thereby avoiding the first aerosol entering the substrate section 1 to pollute the solid aerosol-generating substrate in the substrate section 1, affecting the atomization effect of the substrate section 1, and avoiding the problem that the taste of the generated mixed aerosol is poor and the user experience is affected due to the fact that the first aerosol is heated secondarily in the substrate section 1.

Referring to fig. 3 and 4, fig. 3 is a cross-sectional view of the aerosol-generating system shown in fig. 1; fig. 4 is an enlarged view of the structure of the airway tube assembly of fig. 3.

The aerosol-generating device 100 includes a housing 10, an atomizer 20, a heat-generating body assembly 30, a power supply assembly 40, and an airway tube assembly 50. Wherein, atomizer 20, heat-generating body subassembly 30, power supply subassembly 40 and air flue pipe subassembly 50 are provided in shell 10. Specifically, the airway tube assembly 50 is formed with a housing cavity a for housing a portion of the aerosol-generating article 200, the heat-generating body assembly 30 is used for heating the aerosol-generating article 200 to generate a second aerosol, the atomizer 20 is disposed below the housing cavity a, a liquid aerosol-generating substrate is stored in the atomizer 20, the liquid aerosol-generating substrate may be an oil containing a specific aroma or substance, and the atomizer 20 is used for heating the liquid aerosol-generating substrate to generate a first aerosol. Wherein, atomizer 20, heat-generating body subassembly 30 are connected with power supply unit 40 electricity respectively, and power supply unit 40 is used for supplying power for atomizer 20 and heat-generating body subassembly 30, and control atomizer 20 and heat-generating body subassembly 30 work.

The air duct assembly 50 provided by the application further has an air flow channel B, one end of the air flow channel B is communicated with the mist outlet 21 of the atomizer 20, and the other end of the air flow channel B is communicated with the hollow section 2 of the aerosol-generating article 200 accommodated in the accommodating cavity a, so that the first aerosol generated by the atomizer 20 can be directly introduced into the hollow section 2 of the aerosol-generating article 200 through the air flow channel B and mixed with the second aerosol to form a mixed aerosol for a user to use. Specifically, the first aerosol is directly introduced into the hollow section 2 of the aerosol-generating article 200 through the airflow channel B, so that the problem that the mixed aerosol generated after being mixed with the second aerosol has poor taste and affects the user experience is avoided because the first aerosol is heated for a second time through the substrate section 1 of the aerosol-generating article 200. In addition, the first aerosol does not pass through the substrate segment 1, so that the aerosol-generating substrate in the substrate segment 1 can be prevented from being polluted by the first aerosol, and the atomization effect of the aerosol-generating substrate in the substrate segment 1 is prevented from being influenced.

It should be noted that, in the present application, one end of the air flow channel B may also be communicated with external air or other air channels, and the other end is communicated with the hollow section 2 of the aerosol-generating article 200 accommodated in the accommodating cavity a, so as to provide air or other air for the hollow section 2, reduce the suction resistance, and achieve other corresponding effects, which is not limited herein.

Specifically, referring to fig. 4 to 10, fig. 5 is a schematic structural diagram of an embodiment of an airway tube assembly provided by the present application; FIG. 6 is a schematic view of the mounting base of FIG. 5; FIG. 7 is a schematic view of the mounting top base of FIG. 5; FIG. 8 is a schematic view of the mounting top seat of FIG. 7 at another angle; FIG. 9 is a schematic view of the first air passage joint as in FIG. 5; fig. 10 is a schematic view of the structure of the mounting top base of fig. 9 at another angle.

The airway tube assembly 50 includes a mounting base 51, a mounting top mount 52, and a first airway adapter 53. Wherein, the mounting base 51 is provided with a first accommodating cavity A1; the bottom wall of the first accommodating cavity A1 is provided with a first air flow channel B1, and the side wall of the first accommodating cavity A1 is provided with a second air flow channel B2; one end of the first air flow channel B1 is used for communicating with the mist outlet 21 of the atomizer 20 and one end of the second air flow channel B2, and the other end of the second air flow channel B2 extends to the top end of the mounting base 51; the mounting top seat 52 is arranged at the top end of the mounting base 51 and is provided with a second accommodating cavity A2; the second accommodating cavity A2 is communicated with the first accommodating cavity A1 to form an accommodating cavity A in a matching way; wherein the hollow section 2 of the aerosol-generating article 200 inserted into the accommodating cavity a is at least partially accommodated in the second accommodating cavity A2, and the sidewall of the second accommodating cavity A2 has a first through hole 521, and the first through hole 521 is used for communicating with the hollow section 2 of the aerosol-generating article 200 inserted into the second accommodating cavity A2; the first air passage joint 53 is at least partially sleeved on the outer side wall of the mounting top seat 52; the inner side surface of the first air passage joint 53 has a first groove 531, and the first groove 531 cooperates with the mounting top base 52 to form a third air passage B3 communicating the second air passage B2 with the first through hole 521. Specifically, through the above arrangement, the first airflow channel B1, the second airflow channel B2 and the third airflow channel B3 cooperate to form the atomization channel B, so that the first aerosol generated by the atomizer 20 can be guided into the hollow section 2 of the aerosol generating product 200, and then mixed with the second aerosol generated by the substrate section 1 in the hollow section 2, so that the taste of the mixed aerosol is improved, and the user experience is improved.

In an embodiment, the number of the first air flow channels B1 and the number of the second air flow channels B2 are the same, and the first air flow channels B1 are shared by one end of the atomizer 20 near the mist outlet 21, and the other ends of the first air flow channels B1 are in one-to-one correspondence with the second air flow channels B2. In addition, in the present embodiment, the number of the first through holes 521 and the number of the first grooves 531 may be the same, the plurality of first through holes 521 and the plurality of first grooves 531 are disposed in one-to-one correspondence, the plurality of first grooves 531 and the mounting top base 52 cooperate to form a plurality of third air flow passages B3, and the plurality of third air flow passages B3, the plurality of second air flow passages B2 and the plurality of first through holes 521 are in one-to-one correspondence. Or the number of the first through holes 521 is one or more, the first groove 531 is an annular groove (as shown in fig. 10), the first groove 531 and the mounting top seat 52 cooperate to form an annular third air flow channel B3, and the annular third air flow channel B3 communicates the plurality of second air flow channels B2 with the one or more first through holes 521.

When the third airflow channel B3 is annular, the first aerosol flowing into the third airflow channel B3 from the second airflow channel B2 will fill the entire third airflow channel B3 around the annular, but will not directly enter the hollow section 2 communicating with the third airflow channel B3, which is beneficial to continuously mixing the first aerosol and the second aerosol in the hollow section 2. Specifically, the annular third airflow channel B3 forms a buffer space, so that the first aerosol can uniformly enter the hollow section 2 after being buffered in the third airflow channel B3, so as to be uniformly mixed with the second aerosol in the hollow section 2, and the taste of the mixed aerosol is improved, thereby improving the use experience of users.

In one embodiment, referring to fig. 6 and 8, the number of the second air flow passages B2 is plural, and the ports at the other ends of the plural second air flow passages B2 are located at the end face of the top end of the mounting base 51; the mounting top seat 52 includes a connecting portion 522 and an extending portion 523, the first through holes 521 are plural and are arranged at intervals around the circumference of the extending portion 523, and the first groove 531 on the first air passage joint 53 is an annular groove. Specifically, the connecting portion 522 is sleeved in the first accommodating cavity A1, and the side wall of the connecting portion 522 is attached to the inner surface of the side wall of the first accommodating cavity A1, so as to realize the fixed connection between the mounting top seat 52 and the mounting base 51; the extending portion 523 extends out of the first accommodating cavity A1 to define a second accommodating cavity A2, the first through hole 521 is located on a side wall of the extending portion 523, a part of the first air passage joint 53 is sleeved on an outer side surface of the extending portion 523, the other part of the first air passage joint 53 is sleeved on a top end of the outer side surface of the mounting base 51 to cover ports of the other ends of the second air passages B2, and the annular first groove 531 on the first air passage joint 53 is arranged corresponding to the first through hole 521 to form an annular third air passage B3 in cooperation with the outer side surface of the extending portion 523 to communicate the second air passage B2 with the first through hole 521.

Further, the inner sidewall of the extension 523 further has a second groove 5231, and the second groove 5231 is an annular groove, and the second groove 5231 is used for forming an annular fourth air flow channel (not shown) in cooperation with the hollow section 2 of the aerosol-generating article 200 inserted into the second receiving chamber A2. Wherein the first through hole 521 penetrates the bottom wall of the second recess 5231, and the fourth air flow passage is for communicating with the through air hole of the side wall of the hollow section 2 of the aerosol-generating article 200 inserted into the second receiving chamber A2. Specifically, the annular fourth airflow channel forms a second buffer space, so that the first aerosol can enter the hollow section 2 uniformly after being buffered again in the fourth airflow channel, so that the first aerosol and the second aerosol are mixed uniformly in the hollow section 2, the taste of the mixed aerosol is improved, and the use experience of a user is improved.

The second air flow path B2 may extend along a sidewall of the mounting base 51 in a curved or straight line. In an embodiment, referring to fig. 4, the second airflow channel B2 extends along an axial direction X of the airway tube assembly 50, wherein the axial direction X of the airway tube assembly 50 is parallel to the direction of extension of the aerosol-generating article 200 when inserted into the receiving cavity a; the first air flow channel B1 includes an axial air channel B11 disposed parallel to the axial direction X, and a lateral air channel B12 disposed perpendicular to the axial direction X. The transverse air passage B12 communicates the axial air passage B11 with the second air flow passage B2, and one end of the axial air passage B11, which is close to the mounting top seat 52, is a closed end, and the other end is an open end, wherein the open end is used for communicating with the mist outlet 21 of the atomizer 20; that is, the axial air passage B11 corresponds to a blind hole in the bottom wall of the first accommodating cavity A1, the opening of the blind hole is downward, and the bottom wall of the first accommodating cavity A1 is closed, so that the aerosol generating substrate in the substrate section 1 is heated under the anaerobic or anoxic condition, and the generated second aerosol is free of impurities and purer, so that the generated mixed aerosol has purer taste, and is beneficial to improving the user experience. In the present embodiment, the pipe wall of the mist outlet 21 is connected to the air passage B11 in a sealed manner.

Further, the number of the transverse air passages B12 and the second air flow passages B2 is the same, and may be one or more, and the number of the axial air passages B11 is one. In this embodiment, the number of the transverse air passages B12 and the number of the second air passages B2 are the same, the first ends of the transverse air passages B12 are shared and are all communicated with the axial air passage B11, and the transverse air passages B12 and the second air passages B2 are correspondingly communicated one by one, so that the first aerosol led into the axial air passage B11 can be dispersed into the second air passages B2 through the transverse air passages B12 communicated with the axial air passage B11, the preparation process of the first air passage B1 is simplified, and the conduction efficiency of the first aerosol is improved.

With continued reference to fig. 4, in one embodiment, the first end of the transverse air passage B12 is in communication with the axial air passage B11, the second air flow passage B2 is in communication with the transverse air passage B12 through an opening in a side wall of the transverse air passage B12, the second end of the transverse air passage B12 is an open end, the air passage tube assembly 50 further includes a sealing plug 54, and the sealing plug 54 is disposed at the second end of the transverse air passage B12. Specifically, the transverse air passage B12 is of a three-way structure, so that the opening process of the transverse air passage B12 can be simplified. In addition, when the sealing plug 54 is pulled out of the second end of the transverse air passage B12, the second end of the transverse air passage B12 may also allow external air to enter, and the external air further enters the hollow section 2 through the second air flow passage B2, the third air flow passage B3 and the fourth air flow passage, so as to reduce the suction resistance of the user during suction and improve the user suction experience.

In an embodiment, to further simplify the product process, the first air flow channel B1 is detachably connected to the bottom wall of the first accommodating cavity A1; and/or the second air flow channel B2 is detachably connected with the side wall of the first accommodating cavity A1. Specifically, the transverse air passage B12, the axial air passage B11 and/or the second air passage B2 may be independently detachable air flow pipes, and the mounting base 51 has corresponding mounting positions for easy assembly and replacement. In addition, after the user uses the aerosol generating device 100 for a long time, the first airflow channel B1 and/or the second airflow channel B2 are easily blocked due to the condensation and deposition of the first aerosol, so as to influence the conduction of the first aerosol, and the first airflow channel B1 is detachably connected with the bottom wall of the first accommodating cavity A1; and/or the second air flow channel B2 is detachably connected with the side wall of the first accommodating cavity A1, so that a user only needs to detach the corresponding air flow pipeline for dredging, and the operation is convenient. Furthermore, a first air flow channel B1 is arranged and detachably connected with the bottom wall of the first accommodating cavity A1; and/or the second air flow channel B2 is detachably connected with the side wall of the first accommodating cavity A1, when the first air flow channel B1 or the second air flow channel B2 is damaged, a user can only replace the corresponding air flow pipeline without replacing the whole mounting base 51, so that the maintenance cost of the user can be reduced.

Referring to fig. 5,6 and 10, in one embodiment, the outer surface of the sidewall of the mounting base 51 has a plurality of recesses 511 extending in the axial direction X, and the plurality of recesses 511 are disposed at intervals along the circumference of the outer surface of the sidewall of the mounting base 51, and the plurality of recesses 511 and the plurality of second air flow passages B2 are alternately disposed along the circumference of the outer surface of the sidewall of the mounting base 51; the first air passage connector 53 is at least partially sleeved on the top end of the outer sidewall of the mounting base 51, and the inner side surface of the first air passage connector 53 is provided with a plurality of protrusions 532, and the protrusions 532 serve as the lower sidewall of the first groove 531. Wherein, the number of the plurality of protrusions 532 is the same as the number of the plurality of recesses 511, and each protrusion 532 is matched with each recess 511, and the plurality of protrusions 532 are embedded in the plurality of recesses 511 in a one-to-one correspondence. Specifically, by the above arrangement, the mounting base 51 is tightly connected to the first air passage joint 53.

In some embodiments, the heat-generating body assembly 30 may be a centrally heated heat-generating body assembly 30, for example, the heat-generating body assembly 30 comprises a needle-like, sheet-like heat-generating body for insertion into the substrate section 1 of the aerosol-generating article 200 to heat the aerosol-generating article 200 under energized conditions. Or referring to fig. 13, fig. 13 is an enlarged view of the structure of the connection state of the air duct tube assembly and the heating element assembly in fig. 3, the heating element assembly 30 is a heating element assembly 30 of a circumferential heating type, for example, the heating element assembly 30 includes an induction coil 31 and a tubular heating element 32, the tubular heating element 32 is attached to the inner surface of the first accommodating cavity A1, the induction coil 31 is sleeved on the side wall of the mounting base 51, the induction coil 31 generates an electromagnetic field under the energizing condition, and the tubular heating element 32 is located in the electromagnetic field and generates induction current to generate heat, thereby heating the aerosol-generating article 200.

In order to avoid heat on the heating element in the heating element assembly 30 from being transferred to the second airflow channel B2, so that the first aerosol in the second airflow channel B2 is secondarily heated, two ends of the second airflow channel B2 are respectively communicated with the first airflow channel B1 and the third airflow channel B3, and other parts of the second airflow channel B2 are arranged at intervals with the side wall of the first accommodating cavity A1, so that heat on the heating element assembly 30 is reduced from being transferred into the second airflow channel B2. When the heating element assembly 30 includes the induction coil 31, the electromagnetic coil may be disposed between the second airflow channel B2 and the side wall of the first accommodating cavity A1, or may be sleeved outside the second airflow channel B2. And are not limited herein.

Referring to fig. 4, 11 and 12, fig. 11 is a schematic structural view of the second airway joint as in fig. 5; fig. 12 is a schematic view of the second airway adapter of fig. 10 at another angle. In one embodiment, to ensure a sealed connection between the first air flow channel B1 in the air passage tube assembly 50 and the mist outlet 21 of the atomizer 20, the air passage tube assembly 50 further includes a second air passage connector 55, the second air passage connector 55 is disposed between the bottom of the mounting base 51 and the atomizer 20, and the second air passage connector 55 has a second through hole 551 parallel to the axial direction X and communicating with the first air flow channel B1, and the second through hole 551 is further used to communicate with the mist outlet 21 of the atomizer 20.

Of course, in other embodiments, the second through holes 551 are also used to communicate with external air or other gas channels. There is no limitation in this regard.

The surface of the second air passage connector 55 facing away from the mounting base 51 is provided with a mounting groove 552 for being embedded into the mist outlet 21 of the atomizer 20, the second through hole 551 penetrates through the bottom wall of the mounting groove 552, and the bottom wall of the mounting groove 552 is further provided with an annular sealing strip 553 surrounding the second through hole 551 for sealing and connecting the second through hole 551 with the mist outlet 21 of the atomizer 20.

Unlike the prior art, the airway tube assembly 50 and aerosol generating device 100 provided by the present application have the following advantages: first, the air duct assembly 50 has a housing cavity a and an air flow channel B, one end of the air flow channel B is communicated with the mist outlet 21 of the atomizer 20, and the other end of the air flow channel B is communicated with the hollow section 2 of the aerosol-generating article 200 housed in the housing cavity a, so that the first aerosol generated by the atomizer 20 can be directly introduced into the hollow section 2 of the aerosol-generating article 200 through the air flow channel B, and is mixed with the second aerosol to form a mixed aerosol for a user to use. Specifically, the first aerosol is directly introduced into the hollow section 2 of the aerosol-generating article 200 through the airflow channel B, so that the problem that the mixed aerosol generated after being mixed with the second aerosol has poor taste and affects the user experience is avoided because the first aerosol is heated for a second time through the substrate section 1 of the aerosol-generating article 200. In addition, the first aerosol does not pass through the substrate segment 1, so that the aerosol-generating substrate in the substrate segment 1 can be prevented from being polluted by the first aerosol, and the atomization effect of the aerosol-generating substrate in the substrate segment 1 is prevented from being influenced. The third airflow channel B3 and the fourth airflow channel can be annular airflow channels, and the annular airflow channels form a buffer space, so that the first aerosol can enter the hollow section 2 uniformly after being buffered in the annular airflow channels, so that the first aerosol and the second aerosol are mixed uniformly in the hollow section 2, the taste of the mixed aerosol is improved, and the use experience of a user is improved. Third, the number of the first air flow channels B1 and the second air flow channels B2 may be multiple, where the multiple first air flow channels B1 are shared by one end connected to the mist outlet 21 of the atomizer 20, and the other ends of the multiple first air flow channels B1 are connected to the second air flow channels B2 in a one-to-one correspondence manner, so that the transmission rate of the first aerosol can be increased. Fourth, the first air flow channel B1 and the second air flow channel B2 are detachably connected with the side wall of the first accommodating cavity A1, so that the assembly and cleaning are convenient, and the maintenance cost of a user can be saved.

In addition, referring to fig. 13, in an embodiment of the present application, the heating element assembly 30 is a heating element assembly 30 of a circumferential heating type, and the heating element assembly 30 includes an induction coil 31, a tubular heating element 32, and other functional layers 33 sleeved outside the induction coil 31. For example, the other functional layers 33 include a heat insulating material layer, a ferrite layer, a heat equalizing layer, and the like.

The heat insulating material layer is used for preventing heat generated by the tubular heating element 32 from being transferred to other components in the housing 10 or the aerosol generating device 100, so as to affect the work of the other components and the comfort of holding by a user.

The ferrite layer is used for limiting the magnetic field of the electromagnetic coil so as to converge the magnetic field generated by the electromagnetic coil to the tubular heating element 32 and improve the heating effect of the tubular heating element 32.

Wherein, even heat layer sets up in the outermost of heat-generating body subassembly 30 for the heat that the tubular heat-generating body 32 transferred out carries out the dispersed even heat. Avoiding adverse consequences caused by local overheating.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims (12)

1. An airway tube assembly having a receiving cavity for receiving an aerosol-generating article, the airway tube assembly comprising:

The mounting base is provided with a first accommodating cavity; the bottom wall of the first accommodating cavity is provided with a first airflow channel, and the side wall of the first accommodating cavity is provided with a second airflow channel; one end of the first air flow channel is used for being communicated with the outside, one end of the second air flow channel is communicated with the first air flow channel, and the other end of the second air flow channel extends to the top end of the mounting base;

the mounting top seat is arranged at the top end of the mounting base and is provided with a second accommodating cavity; the second accommodating cavity is communicated with the first accommodating cavity to form the accommodating cavity in a matching way; the side wall of the second accommodating cavity is provided with a first through hole;

The first air passage joint is at least partially sleeved on the outer side wall of the mounting top seat; the inner side surface of the first air passage joint is provided with a first groove, and the first groove is matched with the mounting top seat to form a third air passage which is communicated with the second air passage and the first through hole.

2. The airway tube assembly of claim 1, wherein the mounting top seat comprises a connecting portion and an extending portion, the connecting portion being sleeved in the first receiving cavity; the extension part extends out of the first accommodating cavity to define the second accommodating cavity, and the first through hole is positioned on the side wall of the extension part;

The first air passage joint is sleeved on the outer side face of the extension part, and the first groove is arranged corresponding to the first through hole so as to form the third air passage in a matched mode with the extension part.

3. The airway tube assembly of claim 1, wherein the second gas flow passage extends axially of the airway tube assembly; the first air flow channel comprises an axial air channel which is arranged in parallel with the axial direction and a transverse air channel which is arranged perpendicular to the axial direction; one end of the axial air passage, which is close to the mounting top seat, is a closed end, and the other end of the axial air passage is an open end and is used for being communicated with the outside; the lateral air passage communicates the axial air passage with the second air flow passage.

4. An airway tube assembly as claimed in claim 3 wherein the number of transverse airways and the second flow passage is the same and a plurality, the number of axial airways being one; the first ends of the transverse air passages are communicated with the axial air passages, and the transverse air passages are communicated with the second air flow passages in a one-to-one correspondence manner.

5. An airway tube assembly as claimed in claim 3 wherein the airway tube assembly further comprises a sealing plug;

The first end of the transverse air passage is communicated with the axial air passage, the second end of the transverse air passage is an open end, the sealing plug is arranged at the second end of the transverse air passage, and the second air passage is communicated with the transverse air passage through an opening on the side wall of the transverse air passage.

6. An airway tube assembly as claimed in claim 1, further comprising:

the second air passage connector is arranged at the bottom of the mounting base and is provided with a second through hole which is parallel to the axial direction of the air passage pipe assembly and communicated with the first air passage, and the second through hole is also communicated with the outside.

7. The airway tube assembly of claim 6, wherein a surface of the second airway adapter facing away from the mounting base has a mounting groove, the second through hole extends through a bottom wall of the mounting groove, and the bottom wall of the mounting groove further has an annular seal disposed around the second through hole for sealing the second through hole to an exterior.

8. The airway tube assembly of claim 1, wherein the number of first through holes is one or more, the first groove is an annular groove, and the first groove cooperates with the mounting top seat to form an annular third air flow channel.

9. The airway tube assembly of claim 1, wherein the sidewall outer surface of the mounting base has a plurality of recesses extending in an axial direction of the airway tube assembly, and wherein the plurality of recesses are spaced apart along a circumference of the sidewall outer surface of the mounting base, and wherein the plurality of recesses alternate with the plurality of second air flow passages along the circumference of the sidewall outer surface of the mounting base;

The first air passage connector is at least partially sleeved on the top end of the outer side wall of the mounting base, the inner side face of the first air passage connector is provided with a plurality of protrusions, the protrusions and the recesses are the same in number, each protrusion is matched with each recess, and the protrusions are embedded into the recesses in a one-to-one correspondence manner.

10. The airway tube assembly of claim 1, wherein the first airflow passage is removably connected to a bottom wall of the first housing cavity; and/or the second air flow channel is detachably connected with the side wall of the first accommodating cavity.

11. The airway tube assembly of claim 1, wherein two ends of the second airflow channel are respectively communicated with the first airflow channel and the third airflow channel, and other parts of the second airflow channel are arranged at intervals from the side wall of the first accommodating cavity.

12. An aerosol-generating device, comprising:

a housing;

an airway tube assembly disposed within the housing, the airway tube assembly being as claimed in any one of claims 1 to 11;

An atomizer disposed within the housing and at a bottom of the airway tube assembly, the atomizer for atomizing an aerosol-generating substrate to generate a first aerosol;

a heater assembly disposed within the housing for heating an aerosol-generating article housed within the airway tube assembly to produce a second aerosol;

The power supply assembly is electrically connected with the heating element assembly and the atomizer and is used for supplying power to the heating element assembly and the atomizer;

The first aerosol sequentially passes through the mist outlet, the first airflow channel, the second airflow channel and the third airflow channel to enter an aerosol generating product communicated with the third airflow channel.