CN114903218A

CN114903218A - Aerosol generating device

Info

Publication number: CN114903218A
Application number: CN202210536656.XA
Authority: CN
Inventors: 叶世栋; 宋稳亚; 刘洪佚; 袁永宝
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: 2022-08-16
Also published as: WO2023221612A1

Abstract

The application discloses aerosol generating device includes: the aerosol generating device comprises a receiver and a heating component, wherein the receiver is provided with an accommodating cavity, the accommodating cavity is used for accommodating an aerosol generating substrate, and the inner wall of the accommodating cavity is provided with a first air passage; one end of the heating component is inserted into the accommodating cavity and is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate; the first air passage comprises a heat preservation section and a cooling section which are communicated with each other, the heat preservation section is close to the bottom of the accommodating cavity relative to the cooling section, the cross sectional area of the heat preservation section is larger than that of the cooling section in the axial direction of the accommodating cavity, and the first air passage is used for guiding gas outside the receiver into the heating assembly through the cooling section and the heat preservation section. Through the heat preservation section and the cooling section that set up the air flue, both improved aerosol atomization efficiency, solved aerosol inlet temperature again high, influence user experience's problem.

Description

Aerosol generating device

Technical Field

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

Background

The air flue is a channel for air to flow in the aerosol generating device and the aerosol generating substrate, and the current common air flue design only considers the position of the air flue and the suction resistance of the air flue, and does not consider other effects of the air flue. The air passage has various influences on the aerosol quantity generated in the aerosol generating device, the aerosol temperature sense and other mouthfeel, the aerosol generating efficiency is reduced, and the user experience is influenced.

Disclosure of Invention

In view of this, the present application provides an aerosol generating device to solve the problems that the generation efficiency of aerosol is low and the user experience is affected in the prior art.

In order to solve the technical problem, the technical scheme provided by the application is as follows: there is provided an aerosol generating device comprising: the aerosol generating device comprises a receiver and a heating component, wherein the receiver is provided with an accommodating cavity, the accommodating cavity is used for accommodating an aerosol generating substrate, and the inner wall of the accommodating cavity is provided with a first air passage; one end of the heating component is inserted into the accommodating cavity and is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate; the first air passage comprises a heat preservation section and a cooling section which are communicated with each other, the heat preservation section is close to the bottom of the accommodating cavity relative to the cooling section, the cross sectional area of the heat preservation section is larger than that of the cooling section in the axial direction of the accommodating cavity, and the first air passage is used for guiding gas outside the receiver into the heating assembly through the cooling section and the heat preservation section.

The end face, facing the containing cavity, of the heating component is provided with a second air channel, the first air channel is communicated with the second air channel, and therefore air outside the receiver enters the aerosol generating substrate through the first air channel and the second air channel.

The heating assembly comprises a base and a heating piece arranged on the base, the base is arranged at one end of the accommodating cavity, the second air channel is arranged on the end face, facing the accommodating cavity, of the base, and the heating piece is used for being inserted into the aerosol generating base body.

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 heat generating piece.

Wherein the second air passage further comprises a convergence slot, the convergence slot is arranged around the heating element, the air inlet slot is communicated with the convergence slot, and the convergence slot can be covered by the aerosol-generating substrate.

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

The side walls of the air inlet grooves are equal in width, or gradually narrow from the edge of the base to the convergence groove.

Wherein the receiver comprises: a containment assembly; the end cover assembly is provided with the cooling section, is detachably connected to one end of the containing assembly, is matched with the containing assembly to form the containing cavity, and defines the heat preservation section in the containing cavity.

The end cover assembly comprises an end cover and an extractor, the extractor is detachably connected into the end cover, the extractor is provided with the cooling section, an inserting cavity is formed between the extractor and the inner wall of the end cover, one end of the accommodating assembly, which deviates from the base, is inserted into the inserting cavity, and the extractor is inserted into the accommodating cavity and defines the heat preservation section.

The accommodating assembly comprises a magnetic accommodating pipe, and one end of the magnetic accommodating pipe is inserted into the inserting cavity; the end cover assembly further comprises a magnetic piece, the magnetic piece is arranged between the end cover and the extractor and used for being magnetically attracted with the magnetic containing pipe.

The accommodating assembly further comprises a positioning pipe, the positioning pipe is sleeved in the magnetic accommodating pipe, the positioning pipe is provided with the accommodating cavity, and the inner wall of the positioning pipe is matched with the outer wall of the extractor in a positioning mode.

Wherein the inner wall of the extractor is provided with at least one rib for positioning the aerosol-generating substrate.

The number of the convex ribs is multiple and the convex ribs are arranged at intervals, the convex ribs are arranged along the circumferential direction of the accommodating cavity, and the first air duct comprises two adjacent air inlet gaps between the convex ribs.

The protruding ribs are provided with guide surfaces, the guide surfaces are arranged at one ends, far away from the base, of the extractors and are used for guiding the aerosol generating base bodies to the positioning spaces limited by the protruding ribs.

Wherein the cooling section is a cylindrical cavity, the radial dimension of the cooling section being greater than the radial dimension of the aerosol-generating substrate.

The end cover is arranged on the extractor in a covering mode, a receiving opening is formed in the end cover corresponding to a port of the extractor and used for circumferentially positioning the aerosol generating substrate, and an air inlet gap is formed between the receiving opening and the aerosol generating substrate; or the end cover is provided with an air inlet communicated with the cooling section.

The aerosol generating 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 component is used for being inserted into the blade section.

Wherein the insulating section covers a length portion of the blade section to a length of the blade section at a ratio of 0.25 or greater.

The heating component comprises a base and a heating element arranged on the base, the base is arranged at one end of the heat preservation section and used for supporting the blade section, and the heating element is used for being inserted into the blade section; wherein the ratio of the length of the hold-warm section to the length of the blade section is greater than or equal to 0.25.

Wherein the ratio of the length of the heat-retaining section to the length of the blade section is greater than or equal to 1.0, and the heat-retaining section is used for fully covering the blade section.

The beneficial effect of this application: the application discloses aerosol generating device sets up first air flue through the inner wall of acceping the chamber at the receiver, and first air flue is including the cooling section and the heat preservation section that the cross-sectional area is different, and cooling section and heat preservation section insert the direction distribution of acceping the chamber along aerosol generating substrate, and when using this aerosol generating device, the air current flows through cooling section and heat preservation section to heating element in proper order for heating element atomizing aerosol generates the base member and produces aerosol, so that supply the user to inhale and eat. When the airflow flows through the cooling section, the cross-sectional area of the cooling section is relatively small, so that the flow velocity of the airflow is relatively high, the convection heat transfer coefficient is high, the aerosol generating substrate positioned in the cooling section can be cooled, the inlet temperature of the aerosol is reduced, and the suction experience of a user is improved; the air current enters the heat preservation section after being preheated by the cooling section, the cross-sectional area of the heat preservation section is relatively large, the air flow velocity is reduced, the heat convection coefficient of the heat preservation section is also low, the good heat preservation effect is achieved on the aerosol generation substrate located in the heat preservation section, the heat dissipation of the aerosol generation substrate in the section can be effectively reduced, the aerosol generation substrate is enabled to have higher atomization environment temperature, and the atomization efficiency of the heating assembly on the aerosol generation substrate is effectively improved.

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 diagram of the overall structure 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 a schematic view of a connection structure of a first gas channel and an aerosol-generating substrate provided herein;

FIG. 5 is a schematic view of a connection configuration of a first embodiment of a insulation segment and a blade segment provided herein;

FIG. 6 is a schematic view of a connection configuration of a second embodiment of a insulation segment and a blade segment provided herein;

FIG. 7 is a schematic view of a third embodiment of a joint configuration for a insulation segment and a blade segment provided herein;

FIG. 8 is an exploded view of a heat generating component provided herein;

fig. 9 is a schematic perspective view of a heat generating component provided in the present application;

FIG. 10 is a top view of the heat generating component provided in FIG. 9;

FIG. 11 is a cross-sectional view of a receiver provided herein;

FIG. 12 is a schematic perspective view of an extractor provided herein;

fig. 13 is a top view of the extractor provided in fig. 12.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication 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 listed, but may alternatively 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 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.

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, a power supply element 5 and a switch 6, wherein the receiver 1 is provided with an accommodating cavity 10, and one end of the heating element 2 is inserted into the accommodating cavity 10 and is used for being inserted into an aerosol-generating substrate 4 and heating the aerosol-generating substrate 4. The housing chamber 10 is configured to house the aerosol-generating substrate 4, and the shape and size of the housing 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 heater assembly 2, when driven by the power supply assembly 5, heats the aerosol-generating substrate 4 in the housing 10 to atomise the aerosol into an aerosol which can be inhaled by a user. The aerosol-generating substrate 4 may be a solid substrate such as a plant leaf. 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.

Referring to fig. 4 to 7, fig. 4 is a schematic view of a connection structure of a first air duct and an aerosol-generating substrate provided in the present application, fig. 5 is a schematic view of a connection structure of a first embodiment of a heat-insulating section and a blade section provided in the present application, fig. 6 is a schematic view of a connection structure of a second embodiment of a heat-insulating section and a blade section provided in the present application, and fig. 7 is a schematic view of a connection structure of a third embodiment of a heat-insulating section and a blade section provided in the present application.

In one embodiment, the inner wall of the receiving cavity 10 is provided with a first air passage 11. The first air passage 11 includes a heat preservation section 111 and a cooling section 112 that are communicated with each other, the heat preservation section 111 is disposed adjacent to the bottom of the accommodating cavity 10 relative to the cooling section 112, in an axial direction of the accommodating cavity 10, that is, in a direction in which the aerosol-generating substrate 4 is inserted into the accommodating cavity 10, a cross-sectional area of the heat preservation section 111 is larger than a cross-sectional area of the cooling section 112, and the first air passage 11 is used for allowing air outside the receiver 1 to flow into the heating element 2 through the cooling section 112 and the heat preservation section 111.

As shown in fig. 3 and 4, the heat generating assembly 2 includes a base 21 and a heat generating member 22 disposed on the base 21, the base 21 can cover one end of the heat insulating section 111 and is further used for supporting the blade section 41, and the heat generating member 22 is inserted into the accommodating cavity 10. One end of the heating component 2 is used for inserting the blade section 41, specifically, the heating element 22 is inserted into the blade section 41 to heat the blade section 41, the heating element 22 can be inserted into a part of the blade section 41, and can also be inserted into the whole length of the blade section 41, so that the heating effect is improved, and the application does not limit the heating effect.

In particular, the aerosol-generating substrate 4 is 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 aerosol-generating substrate 4 is held at its bottom close to the base 21 and the warming section 111 is provided at a side close to the base 21, so that the warming section 111 can warm the side of the aerosol-generating substrate 4 close to the base 21, i.e. the blade section 41 of the aerosol-generating substrate 4. That is, the inner cavity of the heat retaining section 111 at least partially overlaps the blade section 41, and the heat retaining section 111 may completely cover the blade section 41 or may cover only a portion of the blade section 41.

As shown in fig. 5, 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, the cross-sectional area of the heat preservation section 111 is greater than the cross-sectional area of the cooling section 112, the heat convection coefficient of air in the heat preservation section 111 is relatively small at this time, the heat preservation effect on the blade section 41 can be improved, the heat from the heating element 22 is prevented from being dissipated too fast, the heating efficiency and the atomization effect on the aerosol generating substrate 4 are improved, and the suction experience of a user is improved. At the same time, the heat loss of the aerosol generating device 100 can be reduced.

As shown in fig. 6 and 7, 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 greater than or equal to 0.25, specifically, one third as shown in fig. 7 or one half as shown in fig. 6, and the present application does not limit this. 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 point, the insulating effect of the insulating section 111 on the blade section 41 is reduced relative to the insulating section 111 completely covering the blade section 41, but the cooling effect of the cooling section 112 on the extraction section 42 of the aerosol-generating substrate 4 is more pronounced, and the inlet temperature of the aerosol is lower for the user.

In one embodiment, the ratio of the length of the hold-warm section 111 to the length of the blade section 41 is greater than or equal to 0.25. It should be noted that, instead of the ratio between the length of the insulating section 111 covering the blade section 41 and the length of the blade section 41, the ratio between the length of the insulating section 111 and the length of the blade section 41 is used here. As described above, since the heat-insulating section 111 may not completely cover the blade section 41, the length of the heat-insulating section 111 and the length of the heat-insulating section 111 covering the blade section 41 are not simply equal, and only when the length of the heat-insulating section 111 and the length of the blade section 41 are equal, the length of the heat-insulating section 111 and the length of the heat-insulating section 111 covering the blade section 41 are equal.

Specifically, as shown in fig. 4 to 7, since the heat-insulating section 111 needs to at least partially cover the blade section 41, the heat-insulating section 111 needs to have a certain length to ensure the heat-insulating effect on the blade section 41. The blade segment 41 is disposed in the heat preservation segment 111, and when the heat preservation segment 111 needs to preserve heat of the blade segment 41, the length of the heat preservation segment 111 should be at least one fourth of the length of the blade segment 41, and may also be one third, one half, or more than or equal to the length of the blade segment 41, and the like, which is not limited in the present application. It will be appreciated that the longer the length of the insulating section 111, the better the insulating effect on the blade section 41. In the present embodiment, when the base 21 is covered on one end of the heat retaining section 111, the aerosol-generating substrate 4 is inserted into the accommodating cavity 10, and one end of the aerosol-generating substrate 4 close to the heat retaining section 111 abuts against the base 21, so that the base 21 can support the blade section 41, that is, one end of the blade section 41 far away from the extraction section 42 abuts against an end surface of the base 21. Preferably, the length of the hold-warm section 111 may be at most slightly longer than the length of the blade section 41, e.g., the ratio of the length of the hold-warm section 111 to the length of the blade section 41 is 1.25. If the length of the incubation section 111 is too long, the incubation section 111 will be caused to incubate the extraction section 42 of the aerosol-generating substrate 4, thereby reducing the cooling effect of the cooling section 112 on the extraction section 42.

The cooling section 112 is used for covering at least part of the extraction section 42 of the aerosol-generating substrate 4, as mentioned above, the cooling section 112 is disposed on the side of the receiving cavity 10 away from the heat generating component 2, and the heat generating element 22 is not inserted into the extraction section 42, which does not cause the problem of over-high temperature of the extraction section 42. The cross-sectional area of the cooling section 112 is smaller than that of the heat preservation section 111, and at this time, the air has a high flow speed and a high convective heat transfer coefficient, so that the extraction section 42 is cooled, and the inlet temperature of the aerosol is reduced.

In other embodiments, as shown in figure 4, 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 aerosol flowing to the suction nozzle section 43 is cooled by the extraction section 42, the temperature of the aerosol entering the mouth of a user is greatly reduced, the mouth-entering mouth feel 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.

Referring to fig. 8 to 10, fig. 8 is an exploded schematic view of a heating element provided in the present application, fig. 9 is a perspective schematic view of the heating element provided in the present application, and fig. 10 is a top view of the heating element provided in fig. 9.

In an embodiment, a second air duct 23 is further disposed on an end surface of the base 21 facing the containing cavity 10, the second air duct 23 is communicated with the first air duct 11, and the second air duct 23 faces the heat generating member 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 can be covered by the aerosol-generating substrate 4.

In particular, the second air passage 23 communicates with the first air passage 11 such that external air can enter the base 21 from the first air passage 11 and then enter the aerosol-generating substrate 4 from the second air passage 23 to carry the heated aerosol to the mouthpiece section for inhalation by a user.

As shown in fig. 3 and 10, the converging groove 232 is preferably disposed at a central position of the base 21, and disposed around the heat generating member 22, and the air inlet groove 231 converges from an edge of the base 21 toward the heat generating member 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, as the heat generating member 22 is inserted from the bottom end of the aerosol-generating substrate 4 to the blade segment 41 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 can be covered by the aerosol-generating substrate 4, thereby enabling gas to also enter 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 uniformly distributed around the converging groove 232 in an equidistant radial arrangement manner, so that the second air passage 23 can uniformly supply air. The side walls of the air inlet slot 231 may be of equal width, irregular or equidistant and gradually narrow towards the direction of the converging slot 232, for example, the cross sections of the side walls of the air inlet slot 231 are parallel, or wave-shaped, or radial, and the shape of the side walls of the air inlet slot 231 is not limited specifically. In this embodiment, the air inlet slot 231 is gradually narrowed from the edge of the base 21 to the converging slot 232, so as 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. 8 and 9, the heat generating member 22 includes a heat generating pillar 221, a tip portion 222 and a lead portion 223, and unlike the flat structure of the 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 22 as the heat generating pillars 221 and the prongs 222, the heat generating member 22 can be more easily introduced into the aerosol-generating substrate 4 or removed from the aerosol-generating substrate 4, and blade sticking 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. The lead portion 223 is disposed at an end of the heat-generating stem 221 remote from the prong portion 222 and may be connected to the power supply assembly 5 such that the power supply assembly 5 supplies power to the heat-generating member 22 to heat the aerosol-generating substrate 4.

As shown in fig. 8 and 9, 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 an embodiment, the outer sidewall of the base 21 has a first step 211 and a second step 212, the first step 211 is formed on the outer sidewall of the base 21 near one side of 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 side of the outer sidewall of the base 21 away from the intake slot 231. 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 upper end surface of the first step 211 and then enters the air inlet grooves 231 and the aerosol-generating substrate 4, and thus the airflow entering the first air passage 11 from the outside 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 and damage the power module 5.

Referring to fig. 11 to 13, fig. 11 is a cross-sectional view of a receiver provided in the present application, fig. 12 is a schematic perspective view of an extractor provided in the present application, and fig. 13 is a top view of the extractor provided in fig. 12.

In one 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 cover assembly 13 is provided with a cooling section 112, and the end cover 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 comprises 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 133 is disposed at a port of the end cap 131 corresponding to the extractor 132, the receiving port 133 is used for circumferentially positioning the aerosol-generating substrate 4, and the receiving port 133 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 133 and received in the receiving cavity 10. An air inlet gap 1330 is formed between the receiving opening 133 and the aerosol-generating substrate 4 for the external air to enter the first air duct 11, or the end cap 131 is further provided with an air inlet 1331 communicated with the cooling section 112, and one or both of the air inlet gap 1330 and the air inlet 1331 can be provided. The air inlet 1331 may be a through hole provided in the top or side of the end cap 131 or may be an air inlet provided between the end cap 131 and the aerosol-generating substrate 4 such 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 133 is provided with a protrusion 1332 and an arc-shaped surface 1333 connected with the protrusion 1332, and the protrusion 1332 is abutted against the aerosol generating substrate 4 to fix the aerosol generating substrate 4; the arcuate surface 1333 has a clearance with the aerosol-generating substrate 4 such that external air may enter the receiving cavity 10. The gap between the arcuate face 1333 and the aerosol-generating substrate 4 may act 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-in 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-in 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 raised ring 1321 on its outer surface, and when the extractor 132 is disposed in the end cap 131, a cavity, i.e., the plug cavity 136, is formed between the raised 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 combined structure through the magnetic attraction of the magnetic member 134, so as to facilitate the installation of the overall 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.

As shown in fig. 12 and 13, the inner wall of the extractor 132 is provided with at least one rib 130, the rib 130 being for locating the aerosol-generating substrate 4 and for directing gas outside the receptacle 1 to the heat generating component 2.

In particular, the ribs 130 are provided on an inner wall surface of the extractor 132 such that the aerosol-generating substrate 4 and the extractor 132 form an air inlet gap 110 therebetween, so that external air can flow through the air inlet gap 110 to the heat generating component 2. Whilst the ribs 130 may secure the aerosol-generating substrate 4 such that the aerosol-generating substrate 4 and the extractor 132 are held in a co-axial position and are not prone to misalignment. The number of the ribs 130 can be one or more, when a plurality of ribs 130 are arranged, 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 the accommodating cavity 10 has enough space for the aerosol generation substrate 4 to insert. The air inlet gap 110 between two adjacent ribs 130 is also used as a part of the first air duct 11 for introducing the external air into the heat generating component 2. In this embodiment, the ribs 130 are distributed in the extractor 132 near a portion of the inner wall of the base 21, and in other embodiments, the ribs 130 may also be disposed at a position contacting with the protrusions 1332 of the receiving openings 133, which is not limited in this application. The rib 130 and the extractor 132 may be an integral structure or a structure separately disposed in the extractor 132, and is not limited in particular. The specific number and shape of the ribs 130 are not limited as long as the ribs 130 have the air inlet gap 110 therebetween and can allow the aerosol-generating substrate 4 to pass through, and the present application is not limited thereto.

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.

As shown in fig. 2 and 3, the housing 3 is provided outside the power module 5, and the housing 3 further has an opening 31, and the opening 31 can be used to mount the switch 6 of the aerosol-generating device 100. A holder 52 is provided in the housing 3 for mounting and supporting the battery 51, the circuit board 54, and the like. 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 inhalation by a user.

As shown in fig. 3 and 8, 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 disclosed aerosol generating device includes: the aerosol generating device comprises a receiver and a heating component, wherein the receiver is provided with an accommodating cavity, the accommodating cavity is used for accommodating an aerosol generating substrate, and the inner wall of the accommodating cavity is provided with a first air passage; one end of the heating component is inserted into the accommodating cavity and is used for being inserted into the aerosol generating substrate and heating the aerosol generating substrate; the first air passage comprises a heat preservation section and a cooling section which are communicated with each other, the heat preservation section is close to the bottom of the accommodating cavity relative to the cooling section, the cross sectional area of the heat preservation section is larger than that of the cooling section in the axial direction of the accommodating cavity, and the first air passage is used for guiding gas outside the receiver into the heating assembly through the cooling section and the heat preservation section. Through the heat preservation section and the cooling section that set up the air flue, both improved aerosol atomization efficiency, solved aerosol inlet temperature again high, influence user experience's problem.

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:

the aerosol generating device comprises a receiver and a control unit, wherein the receiver is provided with an accommodating cavity, the accommodating cavity is used for accommodating an aerosol generating substrate, and a first air passage is arranged in the accommodating cavity;

a heating element having one end for insertion within the aerosol-generating substrate and heating the aerosol-generating substrate;

the first air passage comprises a heat preservation section and a cooling section which are communicated with each other, the heat preservation section is close to the bottom of the accommodating cavity relative to the cooling section, the cross sectional area of the heat preservation section is larger than that of the cooling section in the axial direction of the accommodating cavity, and the first air passage is used for guiding gas outside the receiver into the heating assembly through the cooling section and the heat preservation section.

2. An aerosol generating device according to claim 1, wherein a second air passage is provided at an end surface of the heat generating component facing the receiving cavity, and the first air passage is communicated with the second air passage so that air outside the receiver can enter the aerosol generating substrate through the first air passage and the second air passage.

3. The aerosol generating device of claim 2, wherein the heat generating assembly comprises a base and a heat generating member disposed on the base, the base is disposed at one end of the receiving cavity, the second air channel is disposed on an end surface of the base facing the receiving cavity, and the heat generating member is configured to be inserted into the aerosol generating substrate.

4. An aerosol generating device according to claim 3, 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 side walls of the inlet channel are of equal width or taper from the edge of the base to the converging channel.

8. An aerosol generating device according to claim 1, wherein the receiver comprises:

a containment assembly;

the end cover assembly is provided with the cooling section, is detachably connected to one end of the containing assembly, is matched with the containing assembly to form the containing cavity, and defines the heat preservation section in the containing cavity.

9. The aerosol generating device of claim 8, wherein the end cap assembly comprises an end cap and an extractor, the extractor is detachably connected in the end cap, the extractor is provided with the cooling section, an insertion cavity is formed between the extractor and an inner wall of the end cap, one end of the accommodating assembly, which is far away from the base, is inserted in the insertion cavity, and the extractor is inserted in the accommodating cavity and defines the cooling section.

10. An aerosol generating device according to claim 9, wherein the receiving assembly comprises a magnetically accommodating tube, one end of which is inserted into the insertion cavity;

the end cover assembly further comprises a magnetic piece, the magnetic piece is arranged between the end cover and the extractor and used for being magnetically attracted with the magnetic containing pipe.

11. An aerosol generating device as claimed in claim 10, wherein the receiving assembly further comprises a positioning tube, the positioning tube is sleeved in the magnetic receiving tube, the positioning tube is provided with the receiving cavity, and an inner wall of the positioning tube is in positioning fit with an outer wall of the extractor.

12. An aerosol-generating device according to claim 8 in which the inner wall of the extractor is provided with at least one rib for locating the aerosol-generating substrate.

13. The aerosol generating device as claimed in claim 12, wherein the ribs are spaced apart from each other, the ribs are distributed along a circumferential direction of the accommodating cavity, and the first air passage includes an air inlet gap between two adjacent ribs.

14. An aerosol generating device according to claim 13, wherein the ribs are provided with guide surfaces provided at an end of the extractor remote from the base for guiding the aerosol-generating substrate into a locating space defined by the plurality of ribs.

15. An aerosol generating device according to any of claims 8 to 14, wherein the cooling section is a cylindrical cavity, the cooling section having a radial dimension greater than a radial dimension of the aerosol-generating substrate.

16. An aerosol-generating device according to claim 15,

the end cover is arranged on the extractor in a covering mode, a receiving opening is formed in the end cover corresponding to the port of the extractor and used for circumferentially positioning the aerosol generating substrate, and an air inlet gap is formed between the receiving opening and the aerosol generating substrate; or

The end cover is provided with an air inlet communicated with the cooling section.

17. The aerosol generating device of claim 1, wherein the aerosol-generating substrate comprises a blade segment and an extraction segment for insertion within the receiving cavity, the warming segment is for covering at least a portion of the blade segment, the cooling segment is for covering at least a portion of the extraction segment, and an end of the heat generating component is for insertion into the blade segment.

18. The aerosol generating device of claim 17, wherein the insulating segment covers a ratio of a length of the blade segment to a length of the blade segment of 0.25 or greater.

19. An aerosol generating device according to claim 18, wherein the heat generating component comprises a base and a heat generating member disposed on the base, the base being disposed at one end of the heat retaining section and configured to support the blade section, the heat generating member being configured to be inserted into the blade section;

wherein the ratio of the length of the hold-warm section to the length of the blade section is greater than or equal to 0.25.

20. An aerosol generating device according to claim 19, wherein the ratio of the length of the insulating section to the length of the blade section is 1.0 or greater, the insulating section being adapted to fully cover the blade section.