CN115226952A

CN115226952A - Aerosol generating device

Info

Publication number: CN115226952A
Application number: CN202210532714.1A
Authority: CN
Inventors: 袁腾腾; 袁永宝; 王威
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-25
Also published as: WO2023221613A1

Abstract

The application discloses an aerosol generating device, which comprises an extractor and a heating component, wherein the extractor is provided with a through hole which axially penetrates through the extractor; the heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the through hole and is matched with the through hole to define an accommodating cavity for accommodating the aerosol generating substrate, and the heating element is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate. The utility model provides an extractor is the through-hole that link up from top to bottom, and the cavity of acceping of aerosol formation base member is constituteed with heating element to the extractor, can simplify the structure of extractor, and outside air can directly get into heating element from this through-hole and heat aerosol formation base member, and the air flue route is short, difficult emergence blocking phenomenon.

Description

Aerosol generating device

Technical Field

The application relates to the technical field of atomization, in particular to an aerosol generating device.

Background

A heated non-combustible (HNB) aerosol generating device includes a housing tube for housing an aerosol-generating substrate and a lower case for housing a battery. The accommodating pipeline is arranged in the upper cover, a heating element is arranged in the accommodating pipeline, and the battery is used for supplying power to the heating element. The lower shell is provided with an air inlet and an air channel communicated with the air inlet and the accommodating pipeline, when the aerosol generating substrate is heated and a user sucks aerosol, external air enters the air channel from the air inlet and then enters the accommodating pipeline, and the aerosol is conveyed to the user through the inside of the aerosol generating substrate. However, the structure causes the upper cover to have higher temperature and influences user experience, and in addition, the air passage is arranged on the lower shell, so that the structure is complex, and the phenomenon of air passage blockage is easy to occur.

Disclosure of Invention

In view of this, the present application provides an aerosol generating device to solve the problem that the upper cover temperature is high and affects the user experience in the prior art.

In order to solve the technical problem, the technical scheme provided by the application is as follows: the aerosol generating device comprises an extractor and a heating component, wherein the extractor is provided with a through hole which axially penetrates through the extractor; the heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the through hole and is matched with the through hole to define an accommodating cavity for accommodating the aerosol generating substrate, and the heating element is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate.

The inner wall of the accommodating cavity is provided with a first air passage; the base is equipped with the second air flue towards the terminal surface of accepting the chamber, the second air flue with first air flue intercommunication to supply outside gas to pass through first air flue with the second air flue enters into aerosol generates the base member.

An annular cavity is formed between the end face, facing the containing cavity, of the base and the extractor, the annular cavity surrounds the aerosol generating substrate, and one end of the first air channel and one end of the second air channel are both communicated with the annular cavity.

The second air channel comprises at least one air inlet groove, and the air inlet groove extends from the edge of the base to the heating element.

Wherein, the second air flue further includes the groove of assembling, assemble the groove and encircle generate heat the piece setting, the inlet duct intercommunication assemble the groove, just it can be covered by the aerosol generation base member to assemble the groove.

The number of the air inlet grooves is multiple, and the air inlet grooves are radially arranged on the peripheral sides of the convergence grooves.

The groove width of the air inlet groove is equal in width or gradually narrows from the edge of the base to the converging groove.

The first air passage comprises a heat preservation section and a cooling section which are communicated, the heat preservation section is arranged relatively close to the base, and the cooling section is arranged relatively close to the port of the accommodating cavity; wherein, in the axial direction along accepting the chamber, the cross-sectional area of heat preservation section is greater than the cross-sectional area of cooling section.

The aerosol substrate comprises a blade section and an extraction section, wherein the blade section and the extraction section are inserted into the accommodating cavity, the heat preservation section is used for covering at least part of the blade section, the cooling section is used for covering at least part of the extraction section, and one end of the heating element is used for being inserted into the blade section.

Wherein the through hole comprises the heat preservation section and the cooling section; or the heat preservation section is defined by one end of the through hole facing the base and the base, and the cooling section is arranged on one side of the through hole far away from the base.

Wherein the aerosol generating device further comprises: a containment assembly; the base is connected with the accommodating component and is matched with the accommodating component to define the accommodating cavity; the extractor is matched with the containing assembly, and the containing cavity is defined with the heat preservation section.

Wherein the extractor comprises a first extractor or a second extractor, and the length of the first extractor is not equal to the length of the second extractor, such that the extractor and the hold-warm section defined by the containment assembly have different lengths.

The inner wall of the through hole is provided with at least one convex rib, and the convex rib is used for positioning and clamping the aerosol generating substrate.

The number of the convex ribs is multiple and the convex ribs are arranged at intervals, and the multiple convex ribs are distributed along the circumferential direction of the accommodating cavity; the convex ribs are further provided with guide surfaces, the guide surfaces face the port of the accommodating cavity and are used for guiding the aerosol generating base body to the positioning space limited by the convex ribs.

Wherein, the base cover is arranged at one end of the through hole.

Wherein, the base with the extractor is towards the one end interval setting of base.

The beneficial effect of this application: different from the prior art, the aerosol generating device comprises an extractor and a heating component, wherein the extractor is provided with a through hole which penetrates axially; the heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the through hole and is matched with the through hole to define an accommodating cavity for accommodating the aerosol generating substrate, and the heating element is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate. The utility model provides an extractor is the through-hole that link up from top to bottom, and the cavity of acceping of aerosol formation base member is constituteed with heating element to the extractor, can simplify the structure of extractor, and outside air can directly get into heating element from this through-hole and heat aerosol formation base member, and the air flue route is short, is difficult for taking place blocking phenomenon.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic overall structural diagram of an embodiment of an aerosol generating device provided herein;

FIG. 2 is a schematic diagram of an exploded view of an embodiment of an aerosol generating device provided herein;

FIG. 3 is a cross-sectional view of an embodiment of an aerosol-generating device provided herein;

FIG. 4 is an exploded view of a heat generating component provided herein;

FIG. 5 is a schematic perspective view of a heat generating component provided herein;

FIG. 6 is a top view of the heat generating component provided in FIG. 5;

FIG. 7 is a schematic diagram of a receiver and a heat generating component according to an embodiment of the present application;

fig. 8 is a schematic diagram of an exploded structure of a receiver according to an embodiment of the present application;

FIG. 9 is an enlarged view of a portion of the receiver and heat generating components provided in FIG. 7;

FIG. 10 is a cross-sectional view of a receiver according to another embodiment of the present application;

fig. 11 is an exploded view of a portion of a receiver according to another embodiment of the present application;

FIG. 12 is a schematic view of a first airway provided herein;

FIG. 13 is a schematic view of a connection configuration of an embodiment of a retention section and a blade section provided herein.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second", and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the embodiment of the present application, all the directional indicators (such as the upper, lower, left, right, front, and rear … …) are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawing), the motion situation, and the like, and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly 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 can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the heating non-combustion aerosol generating device in the prior art, the lower shell is provided with the air inlet and the air passage communicated with the air inlet and the accommodating pipeline, when the aerosol generating substrate is heated and a user sucks aerosol, external air enters the air passage from the air inlet and then enters the accommodating pipeline, and the aerosol is conveyed to the mouth of the user through the inside of the aerosol generating substrate. The inventor of the application finds that because the holding pipeline of the structure is close to the upper cover, the heat of the heating element is easily transferred to the upper cover, so that the temperature of the upper cover is higher, the upper cover is generally a handheld part of a user, and the higher upper cover is easily scalded, so that the user experience is poor. On the other hand, the air flue is arranged on the lower shell, the structure is complex, the air flue path is long, the blocking phenomenon is easy to occur, and the atomization efficiency of the aerosol generating substrate is reduced. In order to overcome the above problems, the present application provides a novel aerosol generating device.

Referring to fig. 1 to 3, fig. 1 is a schematic overall structure diagram of an embodiment of an aerosol generating device provided in the present application, fig. 2 is a schematic explosion structure diagram of an embodiment of an aerosol generating device provided in the present application, and fig. 3 is a cross-sectional view of an embodiment of an aerosol generating device provided in the present application.

The aerosol-generating device 100 provided by the present application comprises a receiver 1, a heating element 2, a housing 3 and a power supply element 5, wherein the receiver 1 is provided with a receiving cavity 10, and one end of the heating element 2 is inserted into the receiving cavity 10 and is used for being inserted into an aerosol-generating substrate 4 and heating the aerosol-generating substrate 4. The accommodation chamber 10 is configured to accommodate the aerosol-generating substrate 4, and the shape and size of the accommodation chamber 10 are not limited and may be designed as needed. The power supply unit 5 is connected to the heat generating unit 2 and supplies power to the heat generating unit 2. The heating element 2, driven by the power supply assembly 5, atomises the aerosol-generating substrate 4 within the housing 10 to form an aerosol which can be inhaled by a user. The aerosol-generating substrate 4 may be a solid substrate such as a plant grass leaf aerosol substrate. The aerosol generating device 100 is particularly useful in different fields, such as medical, cosmetic, recreational smoking, and the like. The power supply unit 5 includes a battery 51, a bracket 52, a driving unit (not shown), a controller (not shown), and the like. The battery 51 is used to power the heat generating component 2 such that the heat generating component 2 is able to heat the aerosol-generating substrate 4 to form an aerosol. The switch 6 is used to turn the aerosol-generating device 100 on or off.

As shown in fig. 3, in an embodiment, the inner wall of the receiving cavity 10 is provided with a first air duct 11, and the first air duct 11 is used for guiding air outside the receiver 1 to the heat generating component 2.

Specifically, the first air duct 11 is formed between the aerosol-generating substrate 4 and the inner wall of the accommodating cavity 10, and is used for guiding the external air to the heat generating element 2. When the user uses the aerosol-generating device 100, the airflow flows from the first air duct 11 to one side of the heating element 2, and can directly reach the end surface of the heating element 2 close to the receiving cavity 10, and then flows back in the cavity between the receiver 1 and the heating element 2, and then the airflow enters the first air duct 11 and the aerosol-generating substrate 4 from the end surface of the heating element 2, so as to convey the heated aerosol to a suction nozzle segment (not shown) for the user to suck.

In an embodiment, the receiving cavity 10 is a cylindrical cavity, and the radial dimension of the receiving cavity 10 is larger than the radial dimension of the aerosol-generating substrate 4, so that the aerosol-generating substrate 4 can pass through the receiving cavity 10 to reach the heating element 2 and abut against the heating element 2. In other embodiments, the receiving cavity 10 may also be a prism cavity, a rectangular cavity, etc., which is not limited in this application.

Referring to fig. 4 to 6, fig. 4 is an exploded schematic view of a heating element provided in the present application, fig. 5 is a perspective schematic view of the heating element provided in the present application, and fig. 6 is a top view of the heating element provided in fig. 5.

In an embodiment, the heat generating component 2 includes a base 21 and a heat generating member 22 disposed on the base 21, the base 21 is disposed at one end of the accommodating cavity 10, and the heat generating member 22 is inserted into the accommodating cavity 10. The end surface of the base 21 facing the containing cavity 10 is further provided with a second air passage 23, the second air passage 23 is communicated with the first air passage 11, and the second air passage 23 guides the heating element 22. The second air duct 23 includes at least one air inlet slot 231 and a converging slot 232, and the air inlet slot 231 extends from the edge of the base 21 to the heat generating member 22. The convergence groove 232 is arranged around the heat generating member 22, the air inlet groove 231 communicates with the convergence groove 232, and the convergence groove 232 may be covered by the aerosol-generating substrate 4.

Specifically, as shown in fig. 3 and 5, the second air passage 23 is communicated with the first air passage 11, so that external air can enter the base 21 from the first air passage 11, further enter the second air passage 23, and directly enter the aerosol generating substrate 4 from the second air passage 23, so as to heat the aerosol generating substrate 4, thereby improving atomization efficiency.

As shown in fig. 6, the converging groove 232 is disposed at the center of the base 21 and surrounds the heating element 22, and the air inlet groove 231 converges from the edge of the base 21 toward the heating element 22 and communicates with the converging groove 232. So that the gas can flow around the convergence groove 232 and the heat generating member 22. At the same time, since the heat generating member 22 is inserted from the bottom end of the aerosol-generating substrate 4 after the aerosol-generating substrate 4 is inserted into the receiving cavity 10, the cross-section of the aerosol-generating substrate 4 is larger than the size of the converging groove 232, so that the converging groove 232 may be covered by the aerosol-generating substrate 4, thereby enabling gas to also enter into the aerosol-generating substrate 4.

Preferably, the number of the air inlet grooves 231 is plural, and the plural air inlet grooves 231 are radially disposed on the peripheral side of the converging groove 232. Specifically, the plurality of air inlet grooves 231 are equidistantly and uniformly distributed around the converging groove 232 in a radial arrangement manner, so that the second air passage 23 can uniformly supply air. The sidewalls of the inlet slot 231 may be of equal width, irregular, or gradually narrowing in the direction of the converging slot 232. The shape of the side wall of the gas introduction groove 231 is not limited. In this embodiment, the air inlet slot 231 is gradually narrowed from the edge of the base 21 to the converging slot 232 to form a trumpet-shaped air inlet slot 231, so that the air flow can be better converged from the periphery to the center.

As shown in fig. 5, the heat generating member 22 includes a heat generating pillar 221 and a tip portion 222, and unlike the structure of the flat heat generating member 22 in the related art, the heat generating member 22 of the present application has a pillar-shaped main body, and the tip portion 222 of the heat generating member 22 is located at one end of the pillar-shaped main body away from the base 21. By designing the heat generating member as the heat generating pillars 221 and the pointed portions 222, the heat generating member 22 can more easily enter or exit the aerosol-generating substrate 4, and the occurrence of blade adhesion is less likely to occur. At the same time, the cylindrical heat generating member 22 enables the aerosol-generating substrate 4 to be detached from the heat generating member 22 in a rotating manner, which facilitates the extraction of the aerosol-generating substrate 4.

As shown in fig. 4 and 5, a heat-generating protective shell 214 is disposed on a side of the base 21 away from the heat-generating component 22, the heat-generating protective shell 214 is a cylindrical body with a cavity, and an end of the heat-generating component 22 away from the extractor 132 extends into the cylindrical body of the heat-generating protective shell 214, so that the heat-generating protective shell 214 partially surrounds the heat-generating component 22 and can protect the heat-generating component 22. The heating protection shell 214 and the base 21 may be connected by clamping, screwing, or screwing, and the specific connection manner is not limited in this application.

In one embodiment, the outer sidewall of the base 21 has a first step 211 and a second step 212 formed on the outer sidewall of the base 21 on a side close to the air inlet slot 231, and the first step 211 communicates with the plurality of air inlet slots 231 for collecting the air flow from the receiver 1; the second step 212 is formed on the outer side wall of the base 21 away from the air inlet slot 231, and a sealing member 213 is further disposed between the first step 211 and the second step 212.

Specifically, the first step 211 and the second step 212 are both annular, and the upper end surface of the first step 211 is communicated with the plurality of air inlet grooves 231, so that the airflow entering from the receiver 1 is collected at the end surface and then enters the air inlet grooves 231 and the aerosol-generating substrate 4, and thus the airflow entering from the first air passage 11 can uniformly flow into the second air passage 23. A seal 213 is provided between the first step 211 and the second step 212 so that air flow does not enter the power module 5.

Referring to fig. 7 to 9, fig. 7 is a schematic structural diagram of a receiver and a heat generating element according to an embodiment of the present disclosure, fig. 8 is a schematic structural diagram of an explosion of the receiver according to an embodiment of the present disclosure, and fig. 9 is an enlarged view of a portion of the receiver and the heat generating element provided in fig. 7.

In an embodiment, the receptacle 1 further comprises an end cap assembly 13, the end cap assembly 13 comprising an end cap 131, an extractor 132 and a mount 133, the end cap 131 covering the extractor 132, and the end cap 131 being provided with a receiving opening 1311 corresponding to a port of the extractor 132, the receiving opening 1311 being for circumferentially positioning the aerosol-generating substrate 4, the receiving opening 1311 being provided corresponding to a port of the extractor 132 remote from the base 21. The aerosol-generating substrate 4 is inserted through the receiving opening 1311 and is accommodated in the housing chamber 10. An air inlet gap (not shown) is formed between the receiving opening 1311 and the aerosol-generating substrate 4, or the end cap 131 is further provided with an air inlet opening (not shown) communicating with the cooling section 112.

Specifically, the receiving opening 1311 is provided with a protrusion 13111 and an arc surface 13112 connected to the protrusion 13111, and the protrusion 13111 abuts against the aerosol-generating substrate 4 to fix the aerosol-generating substrate 4; the arcuate surface 13112 has a clearance from the aerosol-generating substrate 4 such that external air may enter the receiving cavity 10. The gap between the arcuate surface 13112 and the aerosol-generating substrate 4 may act as an air entry gap for ingress of external air.

As shown in fig. 8, the extractor 132 includes an accommodating chamber 10, an installation chamber 1321 and an extractor installation seat 1322, the installation chamber 1321 is disposed on one side of the accommodating chamber 10, the accommodating chamber 10 and the installation chamber 1321 are both formed on the extractor installation seat 1322, and the accommodating chamber 10 and the installation chamber 1321 are both through holes penetrating from top to bottom, so as to facilitate the gas to enter and exit. The rim of the extractor seat 1322 has a circumferentially disposed flange 13221, the flange 13221 surrounds the receiving cavity 10 and the mounting cavity 1321 in the extractor seat 1322, and the flange 13221 can facilitate the connection of the extractor 132 to the mounting member 133, such as clamping, bonding, etc. The mounting member 133 is disposed outside the extractor 132, and the mounting member 133 has an outer shape adapted to the extractor 132 and a first through hole 1331 that can be disposed outside the receiving cavity 10, and the first through hole 1331 is disposed in the receiving hole 1311 and the port of the receiving cavity 10, so that the aerosol-generating substrate 4 can pass through the first through hole 1331, and the gas in the receiving cavity 10 can flow through the first through hole 1331.

Referring to fig. 10 to 11, fig. 10 is a cross-sectional view of a receiver according to another embodiment of the present application, and fig. 11 is an exploded view of a portion of the receiver according to another embodiment of the present application.

In another embodiment, the receptacle 1 includes a receiving assembly 12 and an end cap assembly 13 that are removably connected, the receiving assembly 12 and the end cap assembly 13 together defining a receiving cavity 10 therein. The end cap assembly 13 is provided with a cooling section 112, and the end cap assembly 13 is detachably connected to one end of the accommodating assembly 12 and cooperates with the accommodating assembly 12 to define a heat preservation section 111.

Specifically, the end cap assembly 13 includes an end cap 131, an extractor 132, and a magnetic member 134, the end cap 131 is disposed on the extractor 132, and a receiving port 1311 is disposed at a port of the end cap 131 corresponding to the extractor 132, the receiving port 1311 is used for circumferentially positioning the aerosol-generating substrate 4, and the receiving port 1311 is disposed corresponding to a port of the extractor 132 away from the base 21. The aerosol-generating substrate 4 is inserted through the receiving opening 1311 and is accommodated in the housing chamber 10. An air inlet slit 1330 is formed between the receiving opening 1311 and the aerosol-generating substrate 4 for the external air to enter the first air passage 11, or the end cap 131 is further provided with an air inlet 1331 communicating with the cooling section 112, and the air inlet slit 1330 and the air inlet 1331 may be provided with only one or both of them. The air inlet 1331 may be a through hole formed in or on the side of the end cap 131 or an air inlet reserved between the end cap 131 and the aerosol-generating substrate 4, so that air can enter the first air passage 11 from the through hole or the air inlet. The magnetic member 134 is disposed between the end cap 131 and the extractor 132, and the magnetic member 134 is magnetically coupled to the accommodating component 12.

Specifically, the receiving opening 1311 is provided with a protrusion 13111 and an arc surface 13112 connected to the protrusion 13111, and the protrusion 13111 abuts against the aerosol-generating substrate 4 to fix the aerosol-generating substrate 4; the arcuate surface 13112 has a clearance from the aerosol-generating substrate 4 such that external air may enter the receiving cavity 10. The gap between the arcuate face 13112 and the aerosol-generating substrate 4 may serve as an air inlet gap 1330 for ingress of external air.

Extractor 132 is detachably connected in end cover 131, extractor 132 is provided with cooling section 112, and is formed with plug cavity 136 between the inner wall of extractor 132 and end cover 131, and the one end that holds subassembly 12 and deviates from base 21 inserts plug cavity 136.

In particular, the extractor 132 may be formed with a gap to the aerosol-generating substrate 4, which may form the cooling section 112. The extractor 132 has a circumferentially disposed protruding ring 1321 on its outer surface, and when the extractor 132 is disposed in the end cap 131, a cavity, i.e., the plugging cavity 136, is formed between the protruding ring 1321 and the end cap 131. The end of the receiving component 12 remote from the base 21 is inserted into the plug cavity 136 to secure the receiving component 12.

In an embodiment, the containing assembly 12 may comprise a magnetically accommodating tube 122 and a positioning tube 121, one end of the magnetically accommodating tube 122 being inserted into the plugging cavity 136, abutting against the convex ring 1321 of the extractor 132. The positioning tube 121 is sleeved in the magnetic containing tube 122, the positioning tube 121 has a containing cavity 10 therein, the inner wall of the positioning tube 121 is in positioning fit with the outer wall of the extractor 132, and the extractor 132 is inserted into the containing cavity 10 and defines a heat preservation section 111.

Specifically, the inner wall of the positioning tube 121 abuts against the outer side wall of the extractor 132 close to the base 21, and a cavity is positioned between the end of the extractor 132 close to the base 21, the inner wall of the positioning tube 121, and the end surface of the base 21, and the cavity is the heat preservation section 111 of the first air duct 11. When the aerosol-generating substrate 4 is inserted into the receiving cavity 10 within the receptacle 1 with its bottom in contact with the end face of the base 21, the blade section 41 of the aerosol-generating substrate 4 may be at least partially located in the warming section 111 such that the warming section 111 is able to warm the blade section 41.

In other embodiments, the accommodating component 12 may also be an integrated single-tube structure, that is, the magnetic accommodating tube 122 and the positioning tube 121 are integrally embedded in the insertion cavity 136 and abut against the convex ring 1321 of the extractor 132, and the function of the accommodating component 12 may also be achieved, which is not limited in this application.

The magnetic member 134 is specifically disposed between the end cap 131 and the protruding ring 1321 of the extractor 132, in this embodiment, the extractor 132, the magnetic accommodating tube 122 and the end cap 131 may be metal members, the magnetic accommodating tube 122 and the magnetic member 134 are respectively disposed on two sides of the protruding ring 1321, and the end cap 131 is sleeved outside the magnetic accommodating tube 122 and the magnetic member 134, so that the magnetic accommodating tube 122, the extractor 132 and the end cap 131 may form an integrated structure through the magnetic attraction of the magnetic member 134, so as to facilitate the installation of the whole structure of the aerosol generating device 100. At the same time, the magnetic containment tube 122, the extractor 132 and the end cap 131, which make up the integral composite structure, are magnetically attracted to one another, having a weight that makes it easier for the aerosol-generating substrate 4 to be removed from the extractor 132. It will be appreciated that the extractor 132, magnetic containment tube 122 and end cap 131 may be of other materials, and that the functionality of the present application may be achieved even if they are not formed as an integral composite structure. The magnetic member 134 may be a magnet or other material with a magnetic coating, and is selected according to the requirement, which is not limited in this application.

In this embodiment, the extractor 132 includes the first extractor 1323 or the second extractor 1324, and the length of the first extractor 1323 is not equal to the length of the second extractor 1324, so that the extractor 132 and the holding section 111 defined by the accommodating component 12 have different lengths.

Specifically, the first extractor 1323 and the second extractor 1324 may have different heights, so that the heat-retaining section 111 with different lengths is formed after the installation of the extractor 132 and the accommodating component 12 is completed. In this embodiment, the length of the first extractor 1323 is greater than the length of the second extractor 1324, so that the length of the soaking section 111 defined by the first extractor 1323 and the accommodating component 12 is less than the length of the soaking section 111 defined by the second extractor 1324 and the accommodating component 12. Because the blade section 41 is arranged in the heat preservation section 111, the heat preservation section 111 needs to preserve heat of the blade section 41, and therefore the longer the length of the heat preservation section 111 is, the better the heat preservation effect of the blade section 41 is. In practical use, the length of the extractor 132 may be selected differently according to specific products, which is not limited in this application.

In one embodiment, the through holes in the base 21 and the extractor 132 are spaced toward one end of the base 21.

Specifically, the spaced-apart base 21 and the spaced-apart through-holes in the extractor 132 may form a cavity in which the incubation portion 111 is formed. The extractors 132 described above in combination have different lengths such that the incubation sections 111 formed within the cavity have different lengths.

As shown in fig. 7 and 10, the inner wall of the receiving cavity 10 is provided with at least one rib 130, and the rib 130 is used for positioning the aerosol-generating substrate 4 and guiding the air outside the receptacle 1 to the heating element 2.

In particular, the ribs 130 are provided on an inner wall surface of the extractor 132 such that the air inlet passage 110 is formed between the aerosol-generating substrate 4 and the extractor 132, so that external air can flow through the air inlet passage 110 to the heat generating component 2, so that the heat generating element 22 can heat the aerosol-generating substrate 4 to form an aerosol. At the same time, the ribs 130 may secure the aerosol-generating substrate 4 such that the aerosol-generating substrate 4 and the extractor 132 remain in a coaxial position and are not prone to misalignment. The number of the ribs 130 may be one or more, when a plurality of ribs 130 are provided, the ribs 130 need to be arranged at intervals, and the plurality of ribs 130 are distributed along the circumferential direction of the accommodating cavity 10, so that there is a sufficient space for the aerosol generating substrate 4 to be inserted into the accommodating cavity 10. The air inlet passage 110 between two adjacent ribs 130 may constitute a first air passage 11 for introducing external air to the heat generating component 2. In this embodiment, the ribs 130 are distributed on a part of the inner wall of the extractor 132 near the base 21, and may be disposed at the maximum position contacting with the protrusion 13111 of the receiving hole 1311, preferably at half or no more than two thirds of the inner wall of the extractor 132. The specific number and shape of the ribs 130 is not limited as long as they are sufficient to have the air inlet channels 110 between each other and to enable the aerosol-generating substrate 4 to pass through, which is not limited in this application.

Further, the ribs 130 are provided with guide surfaces 1301, which guide surfaces 1301 are arranged towards the end of the extractor 132 remote from the base 21, and may be used to guide the aerosol-generating substrate 4 to be conveniently inserted into the positioning space defined by the plurality of ribs 130. The guide surface 1301 may be a slope or an arc surface, or may be another surface as long as the aerosol-generating substrate 4 can be guided, which is not limited in the present application.

In one embodiment, as shown in fig. 7 and 9, an annular cavity 14 is formed between the end surface of the base 21 facing the receiving cavity 10 and the receptacle 1, the annular cavity 14 being disposed around the aerosol-generating substrate 4. The annular chamber 14 is formed on the end surface of the extractor 132 facing the base 21, and is communicated with the end of the first air duct 11 close to the base 21, meanwhile, the annular chamber 14 is arranged around the end of the aerosol-generating substrate 4 close to the base 21, the aerosol-generating substrate 4 is located at the center of the annular chamber 14, and the air inlet slot 231 of the second air duct 23 is also communicated with the annular chamber 14, so that after the air flows back at the annular chamber 14, the air enters from the bottom of the aerosol-generating substrate 4 again through the air inlet slot 231. The annular chamber 14 is arranged to facilitate the gas to flow through the first gas duct 11 and uniformly into the second gas duct 23. The outer diameter of the annular chamber 14 is substantially the same as the end face of the base 21 adjacent the extractor 132. The end of the annular chamber 14 facing the base 21 is of greater diameter than the end at the extractor 132, so that the annular chamber 14 is divergent towards the base 21, further facilitating the entry of the gas. It will be understood that the annular chamber 14 may also be a recess formed from the end face of the extractor 132 facing the base 21, the bottom face of the recess having a through hole, i.e. the housing chamber 10 of the receptacle 1.

Referring to fig. 12 to 13, fig. 12 is a schematic structural diagram of a first air duct provided in the present application, and fig. 13 is a schematic structural diagram of a connection structure of an embodiment of a heat preservation section and a blade section provided in the present application.

In an embodiment, the accommodating cavity 10 includes a heat preservation section 111 and a cooling section 112 connected to each other, the heat preservation section 111 is disposed relatively close to the heating element 2, and the cooling section 112 is disposed relatively close to a port of the accommodating cavity 10; wherein the cross-sectional area of the warming section 111 is larger than the cross-sectional area of the cooling section 112 in an axial direction along the receiving cavity 10, i.e. in a direction along the insertion direction of the aerosol-generating substrate 4 into the receiving cavity 10.

Specifically, heat preservation section 111 and cooling section 112 can constitute first air flue 11 and set up in acceping the chamber 10, and heat preservation section 111 and cooling section 112 are two continuous air flue sections, and heat preservation section 111 is close to heating element 2 and sets up, specifically is close to the terminal surface setting that the chamber 10 was acceped near base 21 for base 21 can the closing cap in the one end of heat preservation section 111. The aerosol-generating substrate 4 may be inserted into the receiving cavity 10 in use, the aerosol-generating substrate 4 may comprise a blade section 41 and an extraction section 42 inserted into the receiving cavity 10, the warming section 111 may cover at least part of the blade section 41, and the cooling section 112 may cover at least part of the extraction section 42. The mount 21 may be used to support one end of the blade segment 41 such that the blade segment 41 abuts the mount 21 to secure the aerosol-generating substrate 4. The aerosol-generating substrate 4 is provided with a heat retaining section 111 at a side thereof close to the base 21, and the heat retaining section 111 is provided at a side thereof close to the base 21, so that the heat retaining section 111 can retain heat of the aerosol-generating substrate 4 close to the base 21, that is, the blade section 41 of the aerosol-generating substrate 4. The heating element 22 is inserted into the receiving cavity 10 and can be further inserted into the blade segment 41 to heat the blade segment 41, an inner cavity of the heat-insulating segment 111 at least partially overlaps with the blade segment 41, and the heat-insulating segment 111 can completely cover the blade segment 41 or only cover a part of the blade segment 41. The heat generating member 22 may be inserted into a part of the blade segment 41, or may be inserted into the entire length of the blade segment 41, so as to improve the heating effect.

As shown in fig. 12, when the heat preservation section 111 completely covers the blade section 41, that is, the ratio of the length of the heat preservation section 111 to the length of the blade section 41 is greater than or equal to 1.0, and the cross-sectional area of the heat preservation section 111 is greater than the cross-sectional area of the cooling section 112, at this time, the convective heat transfer coefficient of air in the heat preservation section 111 is relatively small, which can improve the heat preservation effect on the blade section 41, prevent the heat from the heating element 22 from being dissipated too fast, improve the heating efficiency and atomization effect on the aerosol-generating substrate 4, and improve the suction experience of a user. At the same time, the heat loss of the aerosol generating device 100 can be reduced.

As shown in fig. 13, when the heat-retaining section 111 covers only a part of the blade section 41, for example, the ratio of the length of the heat-retaining section 111 covering the blade section 41 to the length of the blade section 41 is equal to or greater than 0.25, specifically, one third, one half, and so on, which is not limited in the present application. However, in order to ensure the heat-insulating effect of the heat-insulating section 111 on the blade section 41, the ratio of the length of the heat-insulating section 111 covering the blade section 41 to the length of the blade section 41 should be at least equal to or greater than 0.25. At this time, the heat preservation effect of the heat preservation section 111 on the blade section 41 is reduced compared to the case that the heat preservation section 111 completely covers the blade section 41, so that the heat transmitted to the extraction section 42 of the aerosol-generating substrate 4 is lower, the temperature of the extraction section 42 of the aerosol-generating substrate 4 is reduced and the cooling is faster, and for a user, the inlet temperature of the aerosol is lower, and the suction experience of the user can be improved.

The cooling section 112 may cover at least part of the extraction section 42 of the aerosol-generating substrate 4, as described above, the cooling section 112 being disposed relatively adjacent to the port of the receiving cavity 10, and the heat generating member 22 not being inserted into the extraction section 42, so that the temperature of the extraction section 42 does not rise. The cross-sectional area of the cooling section 112 is smaller than that of the heat preservation section 111, and at the moment, the air has a higher flow speed and a higher convective heat transfer coefficient, so that the extraction section 42 of the aerosol generating substrate 4 is cooled, and the inlet temperature of the aerosol is reduced.

In other embodiments, as shown in figure 12, the aerosol-generating substrate 4 may further comprise a mouthpiece segment 43, the mouthpiece segment 43 being the end of the extraction segment 42 remote from the blade segment 41, it being understood that the mouthpiece segment 43 is the portion for the user to inhale, and therefore the mouthpiece segment 43 may be provided on the exterior of the housing 3, which is more convenient for the user to inhale. Meanwhile, as the suction nozzle section 43 is cooled by the extraction section 42, the temperature of the aerosol entering the mouth of the user is greatly reduced, the mouth-entering taste of the aerosol is improved, and the user experience is further improved.

In an embodiment, the cooling section 112 is a cylindrical cavity, the radial dimension of the cooling section 112 being larger than the radial dimension of the aerosol-generating substrate 4, such that the aerosol-generating substrate 4 can pass through the cooling section 112 to the warming section 111. In other embodiments, the cooling section 112 may also be a prism cavity, a rectangular cavity, etc., which is not limited in this application.

As shown in fig. 1, 2 and 8, in an embodiment, the casing 3 includes a first shell 31 and a second shell 32 which are connected with each other in a matching manner, the first shell 31 and the second shell 32 are disposed outside the power module 5, the first shell 31 is disposed on a side close to the end cap assembly 13 relative to the second shell 32, the end cap 131 of the end cap assembly 13 has a first connecting end 1312 and a second connecting end 1313, the first connecting end 1312 has a height smaller than that of the second connecting end 1313, and the first connecting end 1312 and the second connecting end 1313 are connected by a smooth arc-shaped connecting surface, so that the first connecting end 1312 is located on a side far from the casing 3 relative to the second connecting end 1313. The first housing 31 is connected to the first connection end 1312 of the end cap 131 and the arc-shaped connection surfaces of the first connection end 1312 and the second connection end 1313, and the second housing 32 is connected to the second connection end 1313, so that the first housing 31, the second housing 32 and the end cap assembly 13 together form the outer shape of the elliptical cylinder of the aerosol generating device 100. In other embodiments, the specific shapes of the end cap assembly 13 and the housing 3 may be set as desired, and the application is not limited thereto.

In an embodiment, as shown in fig. 2, the second housing 32 further has an opening 321, and the opening 321 can be used for installing the switch 6 of the aerosol generating device 100. The holder 52 is provided in the case 3 for mounting and supporting the heat generating component 2, the battery 51, the circuit board 54, and the like. The support 52 has a supporting cavity 521 adapted to the shape of the heat-generating protective shell 214, and the supporting cavity 521 is sleeved outside the heat-generating protective shell 214 and is clamped with the support 52 to support the heat-generating component 2. An insulating member 134 is disposed outside the supporting cavity 521, and the insulating member 134 can protect heat of the heat generating component 2 to reduce heat loss. The heat insulating material 134 is in contact with the extractor 132, and seals the space between the extractor 132 and the heater block 2. The battery 51 is connected to the heat generating member 22 for supplying power to the heat generating member 22 such that the heat generating member 22 is able to heat the aerosol-generating substrate 4 to form an aerosol for consumption by a user.

As shown in fig. 2, the end cap assembly 13 and the housing 3 may be connected by a screw, snap, or the like, and the sealing member 213 may be provided to prevent air flow from entering the power module 5, damaging or corroding components in the power module 5. Other seals or connectors may be provided between the end cap assembly 13 and the housing 3 to ensure a tight connection between the end cap assembly 13 and the housing 3.

The aerosol generating device comprises an extractor and a heating component, wherein the extractor is provided with a through hole which axially penetrates through; the heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the through hole and is matched with the through hole to define an accommodating cavity for accommodating the aerosol generating substrate, and the heating element is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate. This application extractor is the through-hole that link up from top to bottom, and the cavity of acceping of aerosol formation base member is constituteed with heating element to the extractor, can simplify the structure of extractor, and outside air can directly get into heating element from this through-hole and heat aerosol formation base member, and the air flue route is short, is difficult for taking place blocking phenomenon.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. An aerosol generating device, comprising:

an extractor having a through hole extending axially therethrough;

the heating assembly comprises a base and a heating piece arranged on the base, the base is arranged at one end of the through hole and is matched with the through hole to define an accommodating cavity for accommodating the aerosol generating base body, and the heating piece is used for being inserted into the aerosol generating base body and heating the aerosol generating base body.

2. An aerosol generating device according to claim 1, wherein the inner wall of the receiving chamber is provided with a first air passage;

the base is equipped with the second air flue towards the terminal surface of acceping the chamber, the second air flue with first air flue intercommunication for outside gas passes through first air flue with the second air flue enters into aerosol generates the base member.

3. An aerosol generating device according to claim 2, wherein an annular cavity is formed between an end face of the base facing the receiving cavity and the extractor, the annular cavity being disposed around the aerosol generating substrate, and an end of the first air passage and an end of the second air passage both communicate with the annular cavity.

4. An aerosol generating device according to claim 2, wherein the second air passage comprises at least one air inlet slot extending from an edge of the base towards the heat generating member.

5. An aerosol generating device according to claim 4, wherein the second air passage further comprises a converging channel disposed around the heat generating member, the air inlet channel communicates with the converging channel, and the converging channel is coverable by the aerosol-generating substrate.

6. An aerosol generating device according to claim 5, wherein the number of the air inlet grooves is plural, and the plural air inlet grooves are provided radially on the peripheral side of the converging groove.

7. An aerosol generating device according to claim 6, wherein the inlet channel has a channel width that is either of equal width or that tapers from the edge of the base to the converging channel.

8. The aerosol generating device of claim 2, wherein the first air passage comprises a warming segment and a cooling segment in communication, the warming segment being disposed relatively adjacent to the base, the cooling segment being disposed relatively adjacent to a port of the receiving cavity;

wherein, in the axial direction along accepting the chamber, the cross-sectional area of heat preservation section is greater than the cross-sectional area of cooling section.

9. The aerosol generating device of claim 8, wherein the aerosol substrate comprises a blade segment and an extraction segment for insertion into the receiving cavity, the warming segment is configured to cover at least a portion of the blade segment, the cooling segment is configured to cover at least a portion of the extraction segment, and one end of the heat generating member is configured to be inserted into the blade segment.

10. An aerosol-generating device according to claim 8,

the through hole comprises the heat preservation section and the cooling section; or

The through hole towards the one end of base with the base limits out the heat preservation section, the one side that the through hole kept away from the base is the cooling section.

11. An aerosol-generating device according to claim 8, further comprising:

a containment assembly;

the base is connected with the accommodating component and is matched with the accommodating component to define the accommodating cavity;

the extractor is matched with the containing assembly, and the containing cavity is defined with the heat preservation section.

12. An aerosol generating device according to claim 11, wherein the extractor comprises a first extractor or a second extractor, and wherein the first extractor has a length that is not equal to a length of the second extractor such that the extractor has a different length than the hold-warm section defined by the containment assembly.

13. An aerosol-generating device according to claim 1 in which the inner wall of the through-hole is provided with at least one rib for locating and retaining the aerosol-generating substrate.

14. An aerosol generating device according to claim 13, wherein the plurality of ribs are spaced apart from one another, and are distributed along a circumferential direction of the receiving cavity;

the convex ribs are further provided with guide surfaces, the guide surfaces face the port of the accommodating cavity and are used for guiding the aerosol generating base body to the positioning space limited by the convex ribs.

15. An aerosol generating device according to claim 1, wherein the base cap is provided at one end of the through-hole.

16. An aerosol generating device according to claim 1, wherein the base is spaced from an end of the extractor facing the base.