CN219613102U - Aerosol-generating article and aerosol-generating device - Google Patents

Abstract

The utility model provides an aerosol-generating article and an aerosol-generating device. The aerosol-generating article comprises a substrate segment, a heater core, and a mouthpiece; wherein the substrate section is provided with aerosol generating substrate and defines a containing groove and at least one air passage communicated with the containing groove; the heating core is arranged in the accommodating groove and is used for heating the aerosol generating substrate to form aerosol; the suction nozzle is arranged on one side of the substrate section along the axial direction of the substrate section. The heating core of the aerosol generating product is internally arranged, so that articles or personnel can be prevented from being burnt caused by loosening and falling, hidden danger of chemical burning of personnel is reduced, and probability of ignition of nearby materials by the exposed heating core is reduced; meanwhile, the air can be fully supplied to the built-in heating core, so that the heating core can be fully combusted, harmful gas is reduced, and the technical barriers of central heating and full air supply are broken through.

Description

Aerosol-generating article and aerosol-generating device

Technical Field

The utility model relates to the technical field of atomization, in particular to an aerosol generating product and an aerosol generating device.

Background

Existing carbon heated aerosol-generating articles present a problem in terms of safety in use. The heat source of the mainstream carbon heated aerosol-generating article is typically located at the end thereof and is an exposed high temperature heat source. The collision or extrusion can cause loosening and falling of the heat source, which causes burn of articles or personnel; and the heat source usually contains combustion-supporting components (such as strong oxidants) and has hidden danger of chemical burn; and the exposed high temperature heat source is prone to igniting nearby materials. In addition, there are also a class of carbon-heated aerosol-generating articles on the market that can inhale harmful products generated by burning carbon and aerosol formed by atomization together by users, and that are more harmful to the health of users.

Disclosure of Invention

The utility model provides an aerosol generating product and an aerosol generating device, which aim to solve the problem that an exposed heat source of the existing aerosol generating product can cause loosening and falling of the heat source under the condition of being knocked or extruded to cause burn of articles or personnel; and the heat source usually contains combustion-supporting components (such as strong oxidants) and has hidden danger of chemical burn; and meanwhile, the exposed high-temperature heat source is easy to ignite nearby materials.

In order to solve the technical problems, the utility model adopts a technical scheme that: an aerosol-generating article is provided. The aerosol-generating article comprises a substrate segment, a heater core, and a mouthpiece; wherein the substrate section is provided with aerosol generating substrate and defines a containing groove and at least one air passage communicated with the containing groove; the heating core is arranged in the accommodating groove and is used for heating the aerosol generating substrate to form aerosol; the suction nozzle is arranged on one side of the substrate section along the axial direction of the substrate section.

Wherein the substrate segment comprises at least two medium structures arranged at intervals, each medium structure being provided with the aerosol-generating substrate; the at least two medium structures are surrounded to form the accommodating groove; the gap between two adjacent medium structures forms the air passage.

Wherein each of the media structures has a receiving cavity for receiving the aerosol-generating substrate;

the substrate section further comprises a base, at least two medium structures are respectively arranged on the surface of one side of the base, which is away from the suction nozzle, the base seals the notch of one end of the containing groove, which faces the suction nozzle, and the containing cavity is communicated with the suction nozzle through the base.

And one end of each medium structure, which is away from the suction nozzle, is provided with a second air inlet hole, and the second air inlet holes are communicated with the accommodating cavity.

Each medium structure is provided with a limiting structure towards one side surface of the heating core, the limiting structure extends along the length direction of the medium structure, and the cross section shape of the limiting structure is matched with the cross section shape of the heating core at the corresponding position.

Wherein, limit structure is arc limit groove.

Wherein, along the circumferential direction of the heating core, the ratio of the sum of the lengths of orthographic projections of the at least one air passage on the heating core to the circumference of the heating core is not less than 0.2.

The heating core is arranged between the substrate section and the heating core, and is used for conducting heat generated by the heating core to the substrate section.

Wherein the thickness of the heat conducting sheet is 0.01mm-0.1mm.

Wherein, the heating core includes core and parcel layer, the core is used for heating aerosol-generating substrate, the parcel layer parcel at least the lateral wall of core with the end wall of core one end that deviates from the suction nozzle.

The end wall of the core body facing the suction nozzle is exposed through the wrapping layer and is arranged at intervals with the base of the matrix section.

The cross section of the wrapping layer is round, and the wrapping layer is a circumcircle of the cross section of the core body.

The cross section of the core body is circular ring, polygonal, petal-shaped or cross-shaped.

Wherein, the core is the carbon-point.

Wherein, the device also comprises a cooling section; along the axial direction of matrix section, the cooling section connect in between matrix section with the suction nozzle, and respectively with matrix section with the suction nozzle intercommunication is used for cooling down to the aerosol that flows through the cooling section.

In order to solve the technical problems, the utility model adopts another technical scheme that: an aerosol-generating device is provided. The aerosol-generating device comprises: an aerosol-generating article and a heat-activated component; wherein the aerosol-generating article is an aerosol-generating article as referred to above; a heating initiation assembly is used to ignite a heating core of the aerosol-generating article.

The beneficial effects of the utility model are different from the prior art: the aerosol-generating product provided by the embodiment of the utility model is characterized in that a substrate section and a heating core are arranged, so that the substrate section defines a containing groove and at least one air passage communicated with the containing groove; and disposing the heating core within the receiving slot to heat the aerosol-generating substrate within the substrate segment by the heating core. According to the heating core for heating the aerosol-generating substrate, the heating core is arranged in the accommodating groove defined by the substrate section, namely, the heating core is arranged in the substrate section, and compared with the scheme that the heating core is exposed out of the substrate section, the heating core can be prevented from loosening and falling off under collision or extrusion, so that articles or personnel are burnt; and because the periphery of the heating core is provided with the matrix section, even if the heating core contains combustion supporting components, the hidden danger of chemical burn of personnel can be reduced, and the probability of the exposed heating core igniting nearby materials can be reduced. In addition, through making the matrix section prescribe a limit to at least one air flue that communicates the accommodating groove simultaneously, can make external air get into in the accommodating groove through at least one air flue to provide the burning oxygen to the heating core, and then ensure that the heating core that is located in the accommodating groove can fully burn, effectively reduced harmful gas, such as the production of carbon monoxide, broken through "central heating" and "fully air feed" technical obstacle.

Drawings

Fig. 1 is a schematic view of the overall structure of an aerosol-generating article according to an embodiment of the present utility model;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a perspective view of FIG. 1;

FIG. 4 is a transverse cross-sectional view of the matrix segment of FIG. 3;

fig. 5-10 are schematic views of the overall structure of an aerosol-generating article without a heater core mounted thereon and corresponding view in the a-direction;

fig. 11 is a vertical cross-sectional view of an aerosol-generating article provided by an embodiment of the present utility model;

FIG. 12 is an enlarged view of the heater core of FIG. 11;

fig. 13-16 are schematic structural views of the core;

FIG. 17 is a schematic illustration of a substrate segment according to one embodiment of the present utility model;

FIG. 18 is a cross-sectional view taken along the direction B-B in FIG. 17;

fig. 19 is a schematic structural view of an aerosol-generating device according to an embodiment of the present utility model;

fig. 20 is a schematic exploded view of fig. 19.

Description of the reference numerals

An aerosol-generating article 10; a substrate segment 1; a housing groove 1a; an air passage 1b; a dielectric structure 11; a limit structure 111; a second air intake hole 112; a housing cavity 113; a base 12; a heating core 2; a core 21; a wrapping layer 22; a suction nozzle 3; an aerosol-generating substrate 4; a heat conductive sheet 5; a cooling section 6; the start-up assembly 20 is heated.

Detailed Description

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

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

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

The main problem of the existing carbon heating aerosol generating products is that a heat source is externally arranged, and a large amount of combustion-supporting components (peroxides, metal nitrates, chlorates, heatable metal materials and the like) are added into the heat source to reduce the ignition point of the heat source. External heat source, low ignition point, strong oxidizing property, sustainable combustion and other factors can cause hidden troubles such as high-temperature scalding, high-temperature ignition (falling asleep and random discarding), chemical burn (strong oxidizing agent falling into eyes or children eating by mistake) and the like.

While central heat source air supply is a technical problem for central carbon heating because a large amount of air (oxygen) is required for heat source combustion, insufficient air supply can lead to a significant drop in the combustion temperature of the heat source and the generation of harmful gases such as carbon monoxide (CO). However, "central heating" and "full air supply" are two design concepts that deviate from each other, for which most aerosol-generating articles currently exist that choose an external heat source design that is easier to achieve.

The utility model provides an aerosol generating product, which can solve the potential safety hazard caused by external heat source and overcome the technical barriers of central heating and full air supply.

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

Referring to fig. 1 to 4, fig. 1 is a schematic view illustrating an overall structure of an aerosol-generating article according to an embodiment of the present utility model; FIG. 2 is a view in the direction A of FIG. 1; FIG. 3 is a perspective view of FIG. 1; FIG. 4 is a transverse cross-sectional view of the matrix segment of FIG. 3; in the present embodiment, an aerosol-generating article 10 is provided, the aerosol-generating article 10 comprising a substrate section 1, a heating core 2 and a mouthpiece 3.

Wherein, the substrate section 1 is in a strip shape, the suction nozzle 3 is disposed on one side of the substrate section 1 along the axial direction, i.e. the length direction, of the substrate section 1, the suction nozzle 3 is used for filtering or sucking, and the specific structure and function of the suction nozzle 3 are the same as or similar to those of the suction nozzle 3 or the filter tip in the existing aerosol-generating product 10, which can be seen in detail in the prior art, and will not be described herein.

The substrate segment 1 is provided with an aerosol-generating substrate 4. The aerosol-generating substrate 4 is a solid substrate of plant leaves with a specific aroma and can generate aerosol under heating conditions; the morphology of the aerosol-generating substrate 4 is not limited to an ordered solid aerosol-generating substrate 4, a disordered solid aerosol-generating substrate 4, and a particulate solid aerosol-generating substrate 4. In one embodiment, the aerosol-generating substrate may be a tobacco material.

The substrate section 1 defines a receiving space 1a (see fig. 5 below) and at least one air passage 1b communicating with the receiving space 1 a. Wherein the air channel 1b may be a slot or a hole. The heating core 2 is provided in the receiving recess 1a to heat the aerosol-generating substrate 4 during combustion to form an aerosol. The heating core 2 may be a carbon rod. The heating core 2 can be particularly heated by microwaves, or electromagnetism or laser to realize the ignition of the built-in heating core 2; or the end of the heating core 2 facing away from the nozzle 3 is directly ignited with an open flame to ignite the heating core 2. Thus, the aerosol-generating article 10 has a greater number of ignition patterns and less dependency on the ignition heat activation assembly 20 (see fig. 19 below). Specifically, the diameter of the contour of the outer wall surface of the side wall of the heating core 2 may be 2mm to 5mm, and the axial length of the heating core 2 may be 10mm to 40mm.

In the above-mentioned manner, the heating core 2 for heating the aerosol-generating substrate 4 is disposed in the accommodating groove 1a defined by the substrate section 1, that is, disposed in the substrate section 1, so that compared with the scheme that the heating core 2 is exposed out of the substrate section 1, the heating core 2 can be prevented from loosening and falling off under the condition of collision or extrusion, which causes burning of articles or personnel; and because the periphery of the heating core 2 is provided with the matrix section 1, even if the heating core 2 contains combustion-supporting components, the hidden danger of chemical burn of personnel and the probability of ignition of nearby materials by the exposed heating core 2 can be reduced. In addition, by simultaneously defining at least one air passage 1b communicated with the accommodating groove 1a by the substrate section 1, external air can enter the accommodating groove 1a through the at least one air passage 1b, so that the heating core 2 positioned in the accommodating groove 1a can be fully combusted, the generation of harmful gas such as carbon monoxide is effectively reduced, the problem of fully air supply of central heating is solved while the heating core 2 of the aerosol-generating product 10 is built-in, and the technical barriers of central heating and fully air supply are broken through.

In some embodiments, in conjunction with fig. 1-10, wherein fig. 5-10 are an overall schematic structural view of an aerosol-generating article without a heater core mounted thereon and a corresponding a-direction view; the substrate segment 1 comprises at least two medium structures 11 arranged at intervals, each medium structure 11 being elongated and having a receiving cavity 113 (see fig. 18 below) in communication with the mouthpiece 3, the receiving cavity 113 receiving the aerosol-generating substrate 4. In this embodiment, at least two medium structures 11 are enclosed to form a hollow structure as a receiving groove 1a for receiving the heating core 2; wherein the gap between two adjacent medium structures 11 forms an air channel 1b; so can make external air directly get into in the accepting groove 1a through the clearance between two adjacent medium structures 11, can guarantee the abundant air feed to heating core 2, make heating core 2 fully burn, effectively reduced harmful gas's production.

Specifically, the number of the medium structures 11 may be two (see fig. 5), or three (see fig. 7), or four (see fig. 9) or more.

It will be appreciated by those skilled in the art that if the heating difference of the aerosol-generating substrate 4 in each of the medium structures 11 increases, it may occur that part of the aerosol-generating substrate 4 in the medium structure 11 is already depleted and that aerosol-generating substrate 4 in other medium structures 11 remains; at this time, if the heating of the aerosol-generating article 10 is continued, there may be a problem in that the aerosol-generating substrate 4 is burnt or the whole appliance is too hot, while the energy utilization of the heating start assembly 20 is low; if the heating is not continued, the aerosol-generating substrate 4 is wasted. For this reason, when the number of the dielectric structures 11 is not less than three, the spacing distances between the plurality of dielectric structures 11 may be the same; in this way, it is ensured that the air supply amount of each air passage 1b is the same, so that the degree of combustion of the heating core 2 at the corresponding position tends to be the same, i.e. substantially the same heat is generated, thereby enabling the heating core 2 to uniformly heat the aerosol-generating substrate 4 within the respective medium structure 11 disposed around its circumferential direction. Of course, in other embodiments, the plurality of dielectric structures 11 may be disposed at non-equal intervals.

Wherein, as shown in fig. 2, the ratio of the sum of the lengths L of the orthographic projections of all the air passages 1b on the heating core 2 to the circumference of the heating core 2 is not less than 0.2 along the circumferential direction of the heating core 2. For example, the ratio of the sum of the lengths L of the orthographic projections of all the air passages 1b on the heating core 2 to the circumference of the heating core 2 is 0.5, or 0.6, or 0.8. Wherein, along the circumferential direction of the heating core 2, the length L of the orthographic projection of the air duct 1b on the heating core 2 refers to the arc length of the orthographic projection of the air duct 1b on the heating core 2. With equidistant placement of the plurality of air ducts 1b, the sum of the lengths L of the orthographic projections of all air ducts 1b on the heating core 2 is equal to one arc length L times the number of air ducts 1b.

Referring to fig. 1 and 8, a limiting structure 111 may be further disposed on a side surface of each medium structure 11 facing the heating core 2, where the limiting structure 111 extends along a length direction of the medium structure 11, and a cross-sectional shape of the limiting structure 111 matches with a cross-sectional shape of the heating core 2 at a corresponding position, so as to limit the heating core 2 in the substrate section 1, prevent relative displacement between the heating core 2 and the medium structure 11, and ensure that each position of the heating core 2 corresponding to the medium structure 11 is uniformly stressed.

Specifically, when the cross section of the heating core 2 is circular, or elliptical, the limiting structure 111 may be an arc-shaped limiting groove. Of course, the limiting structure 111 may also be a protruding portion, and specifically may be designed according to the outer contour of the heating core 2.

Specifically, referring to fig. 1 and 2, a second air inlet 112 is formed at one end of each medium structure 11 facing away from the suction nozzle 3, and the second air inlet 112 is communicated with the accommodating cavity 113; so that during the suction, the external air flows from the second air inlet hole 112 into the housing cavity 113 and carries the aerosol supply suction. Wherein, the second air inlet hole 112 is arranged at one end of the medium structure 11 away from the suction nozzle 3, so that the aerosol-generating substrate 4 at each position along the axial direction of the substrate section 1 in the accommodating cavity 113 can be fully atomized, and the utilization rate of the aerosol-generating substrate 4 and the generation rate of the aerosol can be improved.

Referring to fig. 5 to 9, the substrate segment 1 further includes a base 12, at least two dielectric structures 11 are respectively disposed on a surface of one side of the base 12 facing away from the suction nozzle 3, and the base 12 closes a notch of one end of the accommodating groove 1a facing the suction nozzle 3; namely, the base 12 is used for blocking the heating core 2 and the suction nozzle 3; in this way, the air supply channel of the heating core 2 and the suction channel of the aerosol can be separated from each other, and in the suction process, the harmful gas generated by the heating core 2 can be prevented from being sucked by the user along with the aerosol, thereby the problem of affecting the health of the user can be prevented.

It will be appreciated by those skilled in the art that in this embodiment, the receiving chamber 113 is in communication with the mouthpiece 3, particularly via the base 12, to ensure that aerosol formed by atomisation within the receiving chamber 113 can be drawn out through the mouthpiece 3. Specifically, the base 12 may be provided with a plurality of air outlet holes that are communicated with the accommodating cavity 113, so as to prevent the aerosol-generating substrate 4 in the accommodating cavity 113 from being exposed from the accommodating cavity 113 while communicating the accommodating cavity 113 with the suction nozzle 3, thereby improving the purity of the aerosol in the suction nozzle 3.

In some embodiments, referring to fig. 11, fig. 11 is a vertical cross-sectional view of an aerosol-generating article provided by an embodiment of the present utility model; the aerosol-generating article 10 further comprises a thermally conductive sheet 5. A thermally conductive sheet 5 is arranged between the substrate segment 1 and the heating core 2 for conducting heat generated by combustion of the heating core 2 to the substrate segment 1 for heating and atomizing the aerosol-generating substrate 4 within the substrate segment 1.

Specifically, each of the medium structures 11 is provided with a heat conducting fin 5 on a side surface facing the heating core 2, and the heat conducting fin 5 covers the entire surface of the medium structure 11 on the side surface facing the heating core 2, so as to improve heat conduction efficiency and heating uniformity of the aerosol-generating substrate 4 in the substrate segment 1.

Specifically, the thickness of the heat conductive sheet 5 is 0.01mm to 0.1mm. The material of the heat conductive sheet 5 may be a metal or nonmetal such as aluminum foil, graphite, ceramic, or the like.

In some embodiments, in conjunction with fig. 11 and 12, fig. 12 is an enlarged view of the heating core of fig. 11; the heating core is a sandwich structure, and the heating core 2 specifically comprises a core body 21 and a wrapping layer 22.

Wherein the core 21 is used for heating the aerosol-generating substrate 4. The core 21 may be a carbon rod, and the material of the carbon rod includes carbon powder, a carbon powder binder and a combustion improver. Wherein the carbon powder can be bamboo charcoal, fruit charcoal, other biomass charcoal, etc.; the dry weight of the carbon powder is about 50% -90%. The carbon powder adhesive can be water, cationic starch, caustic soda, borax and the like; the carbon powder binder is present at about 5% to about 10% by dry weight. The combustion improver can be peroxide, metal nitrate, chlorate, metal material capable of generating heat and the like; the dry weight of the combustion improver is about 10% -50%. Wherein, the dry weight refers to the weight percentage of a certain material after removing moisture.

13-16, a schematic structural view of the core; the cross-section of the core 21 may be circular (as in fig. 13), polygonal (as in fig. 14), petal-shaped (as in fig. 15) or cross-shaped (as in fig. 16). In a specific embodiment, the diameter of the circumscribed circle of the cross section of the core 21 may be 2mm to 4mm, and the axial length of the core 21 may be 10mm to 30mm. Where circumscribed circle diameter refers to the diameter of a circle intersecting each vertex or side of the polygonal cross-sectional edge.

Referring to fig. 11, the wrapping layer 22 wraps at least the side wall of the core 21 and the end wall of the end of the core 21 facing away from the mouthpiece 3; in this way, the problem of the heater core 2 falling off from the end of the substrate section 1 facing away from the suction nozzle 3 can be effectively prevented. Wherein the wrapping layer 22 can be porous ceramic, fiber, glass fiber, etc. which are made of heat-resistant and breathable materials. In some embodiments, the wrap 22 is circular in cross-section and circumscribes the cross-section of the core 21.

In some embodiments, the end wall of the core 21 facing the mouthpiece 3 is exposed by the wrapping 22 and is spaced from the base 12; in this way, the outside air is convenient to enter the core 21 through the gap between the core 21 and the base 12, so as to provide sufficient oxygen for the core 21, and ensure the core 21 to burn fully.

In particular, referring to fig. 11, the aerosol-generating article 10 may further comprise a cooling section 6. The cooling section 6 is connected between the substrate section 1 and the suction nozzle 3 along the axial direction of the substrate section 1, and is respectively communicated with the substrate section 1 and the suction nozzle 3, and aerosol flowing through the cooling section 6 cools, so that the problem of nozzle scalding caused by overhigh aerosol is avoided. The central axis of the cooling section 6 may coincide with the central axis of the substrate section 1 and the central axis of the suction nozzle 3.

In particular, the length of the cooling section 6 and the length of the substrate section 1 may be equal, for example, 30mm, 20mm, 15mm.

The substrate segments 1 according to the above embodiments of the present utility model are described by taking the substrate segments 1 including a plurality of dielectric structures 11 arranged at intervals as an example. As will be appreciated by those skilled in the art, fig. 17 and 18, fig. 17 is a schematic diagram of a substrate segment provided in accordance with an embodiment of the present utility model, and fig. 18 is a cross-sectional view taken along the direction B-B in fig. 17; at least part of the substrate section 1 along the length direction thereof can also be a continuous hollow annular structure, and the hollow structure surrounded by the annular substrate section 1 is formed into a containing groove 1a for containing the heating core 2 so as to realize the embedment of the heating core 2. Wherein the substrate segment 1 can be in a closed loop shape or an open loop shape; the radian corresponding to the annular matrix section 1 is larger than 180 degrees; preferably, the arc is greater than 240 °; the specific arc can be set according to the actual situation, and the utility model is not limited to this, as long as the heating core 2 can be clamped and fixed, and the heating core 2 can be prevented from falling off.

In this embodiment, a plurality of through holes are formed in the annular substrate section 1 at intervals, and each through hole serves as an air passage 1b; as shown in fig. 18, each through hole penetrates through the inner and outer surfaces of the side wall of the matrix segment 1 in the radial direction of the matrix segment 1 to communicate the outside air with the accommodating groove 1a, thereby supplying oxygen required for combustion to the heating core 2 in the accommodating groove 1 a. The through holes may be straight holes, polygonal holes, curved holes or the like extending in the radial direction of the substrate segments 1. The through hole here has a closed-loop sidewall and is open at both ends. The gap according to the above embodiments has only two spaced sidewalls; of course, when the substrate segment 1 further comprises a base 12, the gap further comprises a bottom wall on the same side of the two spaced side walls.

Specifically, a housing cavity 113 is formed in the annular substrate segment 1, and an aerosol-generating substrate 4 is provided in the housing cavity 113. It can be understood that fig. 18 is only a sectional view of a certain position of the substrate segment 1, and since the plurality of air passages 1b are arranged at intervals along the circumferential direction of the substrate segment 1, the accommodating cavity 113 in the substrate segment 1 can avoid the position of the air passages 1b to extend along the axial direction and/or the circumferential direction of the substrate segment 1 so as to form a closed annular accommodating cavity 113, and meanwhile, the accommodating cavity 113 can also extend from one end to the other end of the substrate segment 1 along the axial direction; it will be appreciated that the cross-sectional view at other locations will see that the pockets 113 on the upper and lower sides and the left and right sides of the airway 1b communicate with each other to facilitate the outflow of aerosol formed by the nebulisation.

According to the aerosol-generating product 10 provided by the embodiment of the utility model, the substrate section 1 and the heating core 2 are arranged, so that the substrate section 1 defines a containing groove 1a and at least one air passage 1b communicated with the side wall of the containing groove 1a; and the heating core 2 is provided in the accommodating groove 1a to heat the aerosol-generating substrate 4 in the substrate section 1 by the heating core 2. In the above-mentioned manner, the heating core 2 for heating the aerosol-generating substrate 4 is disposed in the accommodating groove 1a defined by the substrate section 1, that is, disposed in the substrate section 1, so that compared with the scheme that the heating core 2 is exposed out of the substrate section 1, the heating core 2 can be prevented from loosening and falling off under the condition of collision or extrusion, which causes burning of articles or personnel; and because the periphery of the heating core 2 is provided with the matrix section 1, even if the heating core 2 contains combustion-supporting components, the hidden danger of chemical burn of personnel and the probability of ignition of nearby materials by the exposed heating core 2 can be reduced. Meanwhile, by wrapping the core 21 that can be used for heat generation in the wrapping layer 22, the problem of falling off of the heating core 2 can be further prevented. In addition, by simultaneously defining at least one air passage 1b communicated with the accommodating groove 1a by the substrate section 1, external air can enter the accommodating groove 1a through the at least one air passage 1b to supply oxygen to the heating core 2, so that the heating core 2 positioned in the accommodating groove 1a can be fully combusted, the problem of central combustion air supply is solved, the generation of harmful gas such as carbon monoxide is reduced, and the technical barriers of central heating and full air supply are broken through. In addition, the aerosol-generating article 10 is convenient to operate and safe to use: the ignition mode is more, the dependence on the ignition tool is small, the ignition tool is thrown after being completely drawn, and the use is convenient; the surface temperature of the product is low, and the hidden danger of scalding and fire is reduced.

Referring to fig. 19, fig. 19 is a schematic structural view of an aerosol-generating device according to an embodiment of the present utility model; FIG. 20 is a disassembled schematic of FIG. 19; in this embodiment, an aerosol-generating device is provided for heating and atomizing an aerosol-generating substrate 4 to form an aerosol. The aerosol-generating device comprises in particular an aerosol-generating article 10 and a heat-activated component 20.

The aerosol-generating article 10 is the aerosol-generating article 10 according to the above embodiment, and the specific structure and function of the aerosol-generating article 10 according to the above embodiment may be referred to in the description of the aerosol-generating article 10 according to the above embodiment, which is not described herein.

The heating start-up assembly 20 is used to ignite the heating core 2 of the aerosol-generating article 10. In some embodiments, the heating initiation assembly 20 may be an electromagnetic carbon heating igniter, comprising: a power source, an electromagnetic field generator, and a susceptor; wherein the power supply is used for providing electric energy for the electromagnetic field generator; the electromagnetic field generator is used for generating an electromagnetic field required by induction heating; the susceptor is used to couple with the electromagnetic field and generate heat and transfer the heat to the heating core 2 by means of heat conduction and ignite the heating core 2. Other specific structures and functions of electromagnetic carbon heating igniters are known in the art.

Of course, the heating-up assembly 20 may also be an existing assembly that can generate electromagnetic, or laser light to ignite the heating core 2 within the aerosol-generating article 10; alternatively, the heating-activated assembly 20 may also be a lighter or the like that can generate an open flame to directly ignite the heating core 2 from the end of the heating core 2 facing away from the suction nozzle 3.

The foregoing is only the embodiments of the present utility model, and therefore, the patent scope of the utility model is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the utility model.

Claims (16)

1. An aerosol-generating article comprising:

a substrate section provided with aerosol generating substrate and defining a receiving slot and at least one air passage communicating with the receiving slot;

the heating core is arranged in the accommodating groove and is used for heating the aerosol generating substrate to form aerosol;

the suction nozzle is arranged on one side of the substrate section along the axial direction of the substrate section.

2. An aerosol-generating article according to claim 1, wherein,

the substrate segment comprises at least two medium structures arranged at intervals, and each medium structure is provided with the aerosol-generating substrate; the at least two medium structures are surrounded to form the accommodating groove; the gap between two adjacent medium structures forms the air passage.

3. An aerosol-generating article according to claim 2, wherein,

each of the media structures has a receiving cavity for receiving the aerosol-generating substrate;

the substrate section further comprises a base, at least two medium structures are respectively arranged on the surface of one side of the base, which is away from the suction nozzle, the base seals the notch of one end of the containing groove, which faces the suction nozzle, and the containing cavity is communicated with the suction nozzle through the base.

4. An aerosol-generating article according to claim 3, wherein,

and one end of each medium structure, which is away from the suction nozzle, is provided with a second air inlet hole, and the second air inlet holes are communicated with the accommodating cavity.

5. An aerosol-generating article according to claim 2, wherein,

each medium structure is provided with a limiting structure towards one side surface of the heating core, the limiting structure extends along the length direction of the medium structure, and the cross section shape of the limiting structure is matched with the cross section shape of the heating core at the corresponding position.

6. An aerosol-generating article according to claim 5, wherein,

the limiting structure is an arc limiting groove.

7. An aerosol-generating article according to claim 2, wherein,

the ratio of the sum of the lengths of orthographic projections of the at least one air passage on the heating core to the perimeter of the heating core is not less than 0.2 along the circumferential direction of the heating core.

8. An aerosol-generating article according to any of claims 1 to 7, wherein,

the heat conducting fin is arranged between the substrate section and the heating core and is used for conducting heat generated by the heating core to the substrate section.

9. An aerosol-generating article according to claim 8, wherein,

the thickness of the heat conducting sheet is 0.01mm-0.1mm.

10. An aerosol-generating article according to any of claims 1 to 7, wherein,

the heating core comprises a core body and a wrapping layer, wherein the core body is used for heating the aerosol-generating substrate, and the wrapping layer at least wraps the side wall of the core body and the end wall of one end, away from the suction nozzle, of the core body.

11. An aerosol-generating article according to claim 10, wherein,

the end wall of the core body facing the suction nozzle is exposed through the wrapping layer and is arranged at intervals with the base of the matrix section.

12. An aerosol-generating article according to claim 10, wherein,

the cross section of the wrapping layer is round, and is the circumcircle of the cross section of the core body.

13. An aerosol-generating article according to claim 10, wherein,

the cross section of the core body is circular ring, polygonal, petal-shaped or cross-shaped.

14. An aerosol-generating article according to claim 10, wherein,

the core body is a carbon rod.

15. An aerosol-generating article according to claim 1, wherein,

the cooling section is also included; along the axial direction of matrix section, the cooling section connect in between matrix section with the suction nozzle, and respectively with matrix section with the suction nozzle intercommunication is used for cooling down to the aerosol that flows through the cooling section.

16. An aerosol-generating device, comprising:

an aerosol-generating article, being an aerosol-generating article according to any of claims 1 to 15;

a heating initiation assembly for igniting a heating core of the aerosol-generating article.