CN217771497U

CN217771497U - Aerosol generating device

Info

Publication number: CN217771497U
Application number: CN202221185289.5U
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: 2022-11-11
Anticipated expiration: 2032-05-16
Also published as: WO2023221611A1

Abstract

The application discloses an aerosol generating device, which 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 a first air passage is arranged in the accommodating cavity; one end of the heating component is inserted into the aerosol generating substrate and heats the aerosol generating substrate, and a second air passage is arranged on the end face of the heating component facing the accommodating cavity; the first air passage is communicated with the second air passage so that air outside the receiver enters the aerosol generating substrate through the first air passage and the second air passage. The receiver and the aerosol generating substrate are arranged at intervals by arranging the first air passage, so that the air flow can cool the receiver. In addition, the end face of the heating component facing the accommodating cavity is directly provided with the second air passage, so that the structure of the receiver can be simplified. And outside air directly gets into the aerosol and generates the base member from first air flue and second air flue, and the air flue route is short, is difficult for taking place blocking phenomenon to promote user's suction experience.

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 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 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.

SUMMERY OF THE UTILITY MODEL

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 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 a first air channel is arranged in the accommodating cavity; one end of the heating component is used for being inserted into the aerosol generating base body and heating the aerosol generating base body, and a second air channel is arranged on the end face, facing the accommodating cavity, of the heating component; wherein the first and second air passages communicate for gas outside the receptacle to pass through the first and second air passages into the aerosol-generating substrate.

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 end face of the base, facing the accommodating cavity, is provided with the second air passage, and the heating piece is used for being inserted into the aerosol generating substrate.

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 converging groove.

An annular cavity is formed between the end face, facing the containing cavity, of the base and the receiver, 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.

Wherein the inner wall of the receptacle is provided with at least one rib for locating the aerosol-generating substrate and for directing gas external to the receptacle to the heat generating component.

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

The convex ribs are 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 receiving cavity is a cylindrical cavity, and the radial dimension of the receiving cavity is larger than that of the aerosol-generating substrate.

The aerosol generating device further comprises an end cover, the end cover is arranged on the receiver in a covering mode, a receiving opening is formed in the end cover corresponding to the end opening of the containing cavity 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 also provided with an air inlet communicated with the accommodating cavity.

The accommodating cavity comprises a heat preservation section and a cooling section which are communicated, the heat preservation section is arranged relatively close to the heating component, and the cooling section is arranged relatively close to the port of the accommodating cavity; and 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.

The beneficial effect of this application: different from the prior art, 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 a first air passage is arranged in the accommodating cavity; one end of the heating component is inserted into the aerosol generating substrate and heats the aerosol generating substrate, and a second air passage is arranged on the end face of the heating component facing the accommodating cavity; the first air passage is communicated with the second air passage so that air outside the receiver enters the aerosol generating substrate through the first air passage and the second air passage. The receiver and the aerosol generating substrate are arranged at intervals by arranging the first air passage, so that the air flow can cool the receiver. In addition, through directly setting up the second air flue at the terminal surface that the chamber was acceptd to the heating element orientation, can simplify the receiver structure. And outside air directly gets into the aerosol and generates the base member from first air flue and second air flue, and the air flue route is short, is difficult for taking place blocking phenomenon to promote user's suction experience.

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 explosive structure 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 heat generating components provided herein;

FIG. 8 is a schematic illustration of an exploded view of an embodiment of a receiver provided herein;

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

FIG. 10 is a schematic structural view of a first airway provided by the present application;

FIG. 11 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 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. In the embodiment of the present application, all the directional indicators (such as upper, lower, left, right, front, and rear … …) are used only to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawing), 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 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 may 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 is higher, the upper cover is generally a handheld part of a user, the higher temperature of the upper cover is easily scalded, and the user experience is poor. On the other hand, the air passage is arranged on the lower shell, the structure is complex, the 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 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 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 element 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 aerosol-generating device 100 is used by a user, the airflow flows from the first air duct 11 to one side of the heating element 2, and can directly reach the end face of the heating element 2 close to the receiving cavity 10, and then flows back to the cavity between the receiver 1 and the heating element 2, and then the airflow enters the aerosol-generating substrate 4 from the end face of the heating element 2, so as to convey the heated aerosol to a mouthpiece section (not shown) for the user to inhale.

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 heat generating component 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 uniformly distributed around the converging groove 232 in a radial arrangement manner at equal intervals, so that the second air passage 23 can uniformly supply air. The sidewalls of the air 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 air inlet 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 222, and unlike the structure of the flat heat generating member 22 in the prior art, the heat generating member 22 of the present application has a pillar-shaped main body, and the tip 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 supply assembly.

Referring to fig. 7 to 9, fig. 7 is a schematic structural diagram of a receiver and a heat generating component provided in the present application, fig. 8 is a schematic structural diagram of an explosion of an embodiment of the receiver provided in the present application, and fig. 9 is an enlarged view of a partial structure of the receiver and the heat generating component 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 cover 131 is also provided with an air inlet hole (not shown) communicated 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 face 13112 and the aerosol-generating substrate 4 may serve as an air inlet gap 1310 for the 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 surrounding the receiving cavity 10 and the mounting cavity 1321, 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 sleeved outside the extractor 132, and the mounting member 133 has an outer shape adapted to the extractor 132 and a first through hole 1331 capable of being sleeved outside the receiving cavity 10, and the first through hole 1331 is sleeved corresponding to the receiving opening 1311 and the port of the receiving cavity 10, so that the aerosol-generating substrate 4 can pass through the first through hole 1331.

As shown in fig. 7, the inner wall of the receiving cavity 10 of the extractor 132 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 aerosol. 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 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 enough 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 also serves 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 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. 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 cavity 14 is formed on the end surface of the extractor 132 facing the base 21, and is communicated with one end of the first air channel 11 close to the base 21, meanwhile, the annular cavity 14 is annularly arranged at one 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 cavity 14, and the air inlet groove 231 of the second air channel 23 is also communicated with the annular cavity 14, so that the air flows back at the annular cavity 14 and then enters from the bottom of the aerosol generating substrate 4, so that the air can flow through the first air channel 11 formed by the gaps of the plurality of ribs 130 and uniformly flow into the second air channel 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 of the extractor 132, so that the annular chamber 14 is divergent towards the base 21, which is more conducive to the entry of gas. It will be understood that the annular chamber 14 can 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. 10 to 11, fig. 10 is a schematic structural view of a first air duct provided in the present application, and fig. 11 is a schematic structural view 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 the axial direction of the receiving cavity 10, i.e. in the direction of insertion of the aerosol-generating substrate 4 into the receiving cavity 10.

Specifically, the heat preservation section 111 and the cooling section 112 may form a first air passage 11 disposed in the accommodating cavity 10, and the heat preservation section 111 and the cooling section 112 are two continuous air passage sections, and the heat preservation section 111 is disposed near the heating element 2, specifically near the end surface of the base 21 near the accommodating cavity 10, so that the base 21 may be covered at one end of the 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 be arranged to 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 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. The heating element 22 is inserted into the accommodating cavity 10, and can be further inserted into the blade segment 41 to heat the blade segment 41, the 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 element 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, which is not limited in the present application.

As shown in fig. 10, 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, and 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. 11, 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, one half, and the like, 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 is used to cover at least part of the extraction section 42 of the aerosol-generating substrate 4, and as mentioned above, the cooling section 112 is disposed relatively adjacent to the port of the receiving cavity 10, and the heat generating member 22 is not inserted into the extraction section 42, so that the temperature of the extraction section 42 is not increased. 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 10, 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 housing 3 includes a first housing 31 and a second housing 32 that are connected to each other in a matching manner and are disposed outside the power module 5, the first housing 31 is disposed on a side close to the end cap assembly 13 relative to the second housing 32, the end cap 131 of the end cap assembly 13 has a first connecting end 1312 and a second connecting end 1313, the height of the first connecting end 1312 is smaller than that of the second connecting end 1313, and the first connecting end 1312 and the second connecting end 1313 are smoothly curved connecting surfaces, such that the first connecting end 1312 is located on a side far from the housing 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 radian 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 elliptic 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 maintain heat of the heat generating component 2 to reduce heat loss. The heat insulating material 134 is in contact with the extractor 132, and the extractor 132 and the heater module 2 can be sealed. 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 screwed or snapped, and the sealing member 213 may prevent air flow from entering the power module 5 and 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 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 base body, one end of the heating component is used for being inserted into the aerosol generating base body and heating the aerosol generating base body, and a second air passage is arranged on the end face, facing the accommodating cavity, of the heating component; the first air passage is communicated with the second air passage so that air outside the receiver enters the aerosol generating substrate through the first air passage and the second air passage. The receiver and the aerosol generating substrate are arranged at intervals through the first air passage, so that the air flow can cool the receiver. In addition, through directly setting up the second air flue at the terminal surface that the chamber was acceptd to the heating element orientation, can simplify the receiver structure. And in the direct aerosol formation base body that gets into of outside air from first air flue and second air flue, the air flue route is short, is difficult for taking place blocking phenomenon to promote user's suction experience.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which 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;

one end of the heating component is inserted into the aerosol generating base body and heats the aerosol generating base body, and a second air channel is arranged on the end face, facing the accommodating cavity, of the heating component;

wherein the first and second air passages communicate for gas external to the receptacle to pass through the first and second air passages into the aerosol-generating substrate.

2. The aerosol generating device of claim 1, 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.

3. 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.

4. An aerosol generating device according to claim 3, 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.

5. An aerosol generating device according to claim 4, 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.

6. An aerosol generating device according to claim 5, wherein the side walls of the inlet channel are of equal width or taper from the edge of the base to the converging channel.

7. An aerosol generating device according to any one of claims 2 to 6, wherein an annular cavity is formed between an end face of the base facing the receiving cavity and the receptacle, the annular cavity being disposed around the aerosol-generating substrate, and an end of the first air duct and an end of the second air duct both communicating with the annular cavity.

8. An aerosol-generating device according to claim 1 in which the inner wall of the receptacle is provided with at least one rib for locating the aerosol-generating substrate and for directing gas outside the receptacle to the heat-generating component.

9. The aerosol generating device as claimed in claim 8, wherein the ribs are spaced apart from each other, the ribs are circumferentially distributed along the receiving cavity, and the first air passage includes an air inlet passage between two adjacent ribs.

10. An aerosol-generating device according to claim 9 in which the ribs are provided with guide surfaces which are disposed towards the end of the receiving cavity for guiding the aerosol-generating substrate into a locating space defined by a plurality of the ribs.

11. An aerosol generating device according to any of claims 8 to 10, wherein the receiving cavity is a cylindrical cavity, the radial dimension of the receiving cavity being greater than the radial dimension of the aerosol-generating substrate.

12. An aerosol generating device according to claim 11, further comprising an end cap disposed over the receptacle and having a receiving opening corresponding to a port of the receiving cavity for circumferentially positioning the aerosol generating substrate, wherein an air inlet gap is formed between the receiving opening and the aerosol generating substrate; or

The end cover is also provided with an air inlet communicated with the accommodating cavity.

13. The aerosol generating device of claim 11, wherein the receiving cavity comprises a warming segment and a cooling segment in communication, the warming segment being disposed relatively adjacent to the heating component, 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.