CN113598419A

CN113598419A - Aerosol matrix structure and aerosol generating device

Info

Publication number: CN113598419A
Application number: CN202110802895.0A
Authority: CN
Inventors: 郭聪慧; 梁峰
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-11-05
Also published as: WO2023284452A1

Abstract

The invention discloses an aerosol substrate structure and an aerosol generating device. The aerosol substrate structure comprises a substrate segment, an air passage segment arranged at one end of the substrate segment, and a filter tip segment arranged at one end of the air passage segment far away from the substrate segment; the substrate section comprises an aerosol generating substrate and a heating body, the heating body is provided with a sealed cavity, and the aerosol generating substrate is arranged in the sealed cavity; the heating body is made of ferromagnetic material with Curie point temperature, so that aerosol is heated and atomized through electromagnetic induction to generate a substrate to form aerosol. The aerosol substrate structure and the heating process of the aerosol generating device have small heat loss, residues of the aerosol generating substrate are not easy to leave in the heating device, and the generated aerosol has good substance component consistency and better mouth feeling when being sucked by a user.

Description

Aerosol matrix structure and aerosol generating device

Technical Field

The invention relates to the technical field of electronic atomization devices, in particular to an aerosol substrate structure and an aerosol generating device.

Background

A Heat Not Burning (HNB) device is a combination of a heating device plus an aerosol generating substrate (a treated plant leaf product). The external heating means is heated by the elevated temperature to a temperature at which the aerosol-generating substrate is capable of generating an aerosol but is not sufficiently combustible to enable the aerosol-generating substrate to generate the aerosol for the user without combustion.

Typically, the heating device is provided with a heating element which generates heat to heat the aerosol-generating substrate after insertion of the aerosol-generating substrate into the heating device. However, heat loss during the transfer of heat generated by the heating element to the aerosol-generating substrate is significant, affecting heating efficiency.

In addition, the aerosol-generating substrate is typically wrapped in a paper material to form an open-ended aerosol substrate structure. After the user finishes sucking, when pulling out the aerosol substrate structure, leave over the residue of aerosol production substrate or adhere in heating device easily, cause heating device cleaning difficulty, appear miscellaneous flavor and peculiar smell easily, seriously influence user's smoking experience. In addition, in the process of smoking, external cold air flows through the aerosol generating substrate, so that the temperature of the aerosol generating substrate changes violently, the cracking reaction of the aerosol generating substrate is unstable, the consistency of the substance components of the generated aerosol is poor, and the smoking taste of a user is affected.

Disclosure of Invention

The aerosol substrate structure and the aerosol generating device provided by the invention solve the problems that the heat loss is serious in the heating process, the residue of the aerosol generating substrate is easy to leave in the heating device, the consistency of the substance components of the generated aerosol is poor, and the smoking taste of a user is poor.

In order to solve the above technical problem, the first technical solution adopted by the present application is: providing an aerosol substrate structure comprising a substrate segment, and an air passage segment disposed at one end of the substrate segment, and a filter segment disposed at an end of the air passage segment remote from the substrate segment;

the substrate section comprises an aerosol generating substrate and a heating body, the heating body is provided with a sealed cavity, and the aerosol generating substrate is arranged in the sealed cavity; the heating body is made of ferromagnetic material with Curie point temperature, so that aerosol is heated and atomized through electromagnetic induction to generate a substrate to form aerosol.

Wherein, the material of the side of the heating element at least facing the aerosol generating substrate is a ferromagnetic material with Curie point temperature.

Wherein, the material of the heating element is ferromagnetic material with Curie point temperature.

Wherein the ferromagnetic material is iron-nickel alloy.

Wherein the inner surface of the heating element is in direct contact with the aerosol generating substrate.

Wherein the airway segment has a suction channel; wherein, one end of the closed cavity is provided with a first opening, and the suction channel is communicated with the closed cavity through the first opening; the suction channel is in communication with the ambient atmosphere for admitting air during a suction process for drawing aerosol formed in the substrate segment.

The heating body is a tubular body with a sealed side wall, one end of the tubular body connected with the air passage section is an open end, and the open end is used as a first opening; the end of the tubular body, which is far away from the connection of the air passage section, is a sealing end.

Wherein, be provided with the supporting medium on the inside wall of air flue section for support the air flue section, and the inside cavity of supporting medium, the space that the internal surface of supporting medium encloses forms suction channel.

Wherein the filter tip section is in communication with the air passage section and filled with a filter medium for filtering the aerosol drawn by the air passage section.

Wherein, the material of the air passage section and/or the filter tip section is a paper base material or a foil base material; the support medium and/or the filter medium are acetate fibers.

In order to solve the above technical problem, the second technical solution adopted by the present application is: there is provided an aerosol-generating device comprising an aerosol substrate structure and a heating means. The aerosol substrate structure is an aerosol substrate structure as referred to above.

The heating device comprises a power supply assembly and an electromagnetic coil; the power supply assembly is connected with the electromagnetic coil and used for supplying power to the electromagnetic coil; the electromagnetic coil is used for generating a magnetic field after being electrified so that a heating body in the aerosol substrate structure heats the atomized aerosol through electromagnetic induction to generate a substrate to form aerosol.

The invention provides an aerosol substrate structure and an aerosol generating device, wherein the aerosol substrate structure contains an aerosol generating substrate by using a heating element; meanwhile, the material of the heating body comprises a ferromagnetic material with Curie point temperature, so that the ferromagnetic material with Curie point temperature in the heating body generates heat through electromagnetic induction, and aerosol is heated and atomized to generate a substrate to form aerosol; the aerosol substrate structure can directly heat the aerosol generating substrate through the heating body for accommodating the aerosol generating substrate, and heat conduction is not needed through other media, so that heat loss of heat in the conduction process is effectively reduced.

In addition, the aerosol substrate structure can contain the aerosol generating substrate through the sealed cavity in the heating body, so that the aerosol generating substrate is in a sealed state, residues of the aerosol generating substrate can be taken out along with the aerosol substrate structure after suction is finished, the residues are prevented from being left or adhered in the heating device, and the problems that the heating device is difficult to clean and has foreign flavor and peculiar smell are prevented; in addition, in the process of suction, the airflow does not pass through the aerosol generation substrate in the substrate section, the cracking reaction of the aerosol generation substrate is not influenced by cold air, the cracking reaction is stable, the consistency of the substance components of the generated aerosol is facilitated, and the suction taste of a user is further facilitated to be 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 cross-sectional view of an aerosol substrate construction provided in accordance with a first embodiment of the present application;

FIG. 2 is a cross-sectional view of an aerosol substrate construction provided in accordance with a second embodiment of the present application;

FIG. 3 is a cross-sectional view of an aerosol substrate construction provided in accordance with a third embodiment of the present application;

figure 4 is a cross-sectional view of an aerosol substrate structure provided in a fourth embodiment of the present application;

FIG. 5 is a cross-sectional view of an aerosol substrate construction provided in a fifth embodiment of the present application;

fig. 6 is a cross-sectional view of an aerosol generating device provided in an embodiment of the present application.

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.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the described features. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. 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. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application 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 may alternatively include other steps or elements 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.

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

Referring to fig. 1, fig. 1 provides a cross-sectional view of an aerosol substrate structure 100 according to a first embodiment of the present application. In the present embodiment, an aerosol-substrate structure 100 is provided, the aerosol-substrate structure 100 comprising a substrate segment 111, an airway segment 112 and a filter segment 113 connected in series.

The substrate segment 111 comprises an aerosol-generating substrate 120 and a heat-generating body 121. The heating element 121 has a sealed cavity 111d, and the sealed cavity 111d is used for accommodating the aerosol-generating substrate 120, that is, the aerosol-generating substrate 120 is disposed in the sealed cavity 111d of the heating element 121, and one end of the sealed cavity 111d has a first opening 111 b. Specifically, the side wall of the heating element 121 is annularly surrounded to form a tubular body, and one end of the tubular body connected with the air duct section 112 is an open end. In this embodiment, the open end serves as the first opening 111 b. When the open end is used as the first opening 111b, the caliber of the first opening 111b is the same as the caliber of the closed cavity 111 d. Of course, in the embodiment, the caliber of the first opening 111b may be smaller than the caliber of the closed cavity 111 d.

The airway segment 112 is used to draw aerosol formed within the substrate segment 111. The air passage section 112 is disposed at one end of the substrate section 111 having the first opening 111b, and the air passage section 112 has a suction passage 112a inside, and the suction passage 112a communicates with the closed cavity 111d of the substrate section 111 through the first opening 111 b.

The filter segment 113 communicates with an end of the suction passage 112a of the air duct segment 112 facing away from the substrate segment 111 to enable aerosol within the suction passage 112a to enter the filter segment 113, thereby filtering aerosol drawn by the air duct segment 112 through the filter segment 113. In particular, the filter segment 113 may be disposed on a side of the airway segment 112 away from the substrate segment 111, and the filter segment 113 may be filled with a filter medium 114, wherein the filter medium 114 is capable of filtering tar, suspended particles, etc. in the aerosol so as to filter the aerosol drawn by the airway segment 112 through the filter medium 114, thereby reducing unwanted substances in the aerosol inhaled by the user. The material of the filter medium 114 may be acetate fiber. Further, the end of the filter segment 113 facing away from the air duct segment 112 has a second opening 113a to communicate the inner space of the filter segment 113 with the outside atmosphere. The user can draw the aerosol from the end of the filter segment 113 having the second opening 113 a.

The material of the air duct section 112 and the filter section 113 may be paper or foil based material. The material of the heating element 121 may include a ferromagnetic material having a curie point temperature, and the ferromagnetic material may be, for example, an iron-nickel alloy, so that the ferromagnetic material having the curie point temperature on the heating element 121 is heated and atomized by electromagnetic induction to form the aerosol by heating and atomizing the aerosol-generating substrate 120 inside thereof. Specifically, an electromagnetic coil may be wound in the circumferential direction of the outer periphery of the substrate section 111 to generate a magnetic field when the electromagnetic coil is energized, so that the ferromagnetic material having the curie point temperature on the heating element 121 generates heat.

The material of the heating element 121 including a ferromagnetic material having a curie point temperature is: the heating element 121 may be made of a ferromagnetic material having a curie point temperature, and the entire heating element 121 serves as a heating element to heat the aerosol-generating substrate 120. Of course, the material of the heating element 121 may also include a ferromagnetic material having a curie point temperature and other materials besides the ferromagnetic material having the curie point temperature, and the other materials are only physically combined with the ferromagnetic material having the curie point temperature, that is, the ferromagnetic material does not react with other materials chemically.

Compared with the prior art in which the heating element is arranged in the heating device, the heat generated by the heating element is conducted to the aerosol generation substrate 120 through a series of media, such as air and paper material wrapping the aerosol generation substrate 120, in the embodiment, the aerosol generation substrate 120 is arranged in the heating element 121 made of ferromagnetic material with curie point temperature, and the heating element 121 can directly serve as the heating element to generate heat through electromagnetic induction so as to heat the aerosol generation substrate 120 in the heating element 121. Heat is transferred directly from the heating element 121 to the aerosol-generating substrate 120, reducing the medium through which the heat is transferred, thereby reducing heat loss during conduction.

Further, since the heating element 121 is heated by a ferromagnetic material having a curie point temperature, and since the ferromagnetic material having a curie point temperature is ferromagnetic at or below the curie point temperature, the ferromagnetic material can continue electromagnetic induction heating by the oscillation coil, and heating and baking of the aerosol-generating substrate 120 can be realized. However, after the temperature exceeds the curie point, the ferromagnetic material is converted from ferromagnetic to paramagnetic, that is, at this time, the heating element 121 no longer has magnetism, and the heating element 121 stops performing electromagnetic induction heating on the aerosol generating substrate 120, so that the heating element 121 can automatically stop heating when the heating temperature exceeds the curie point temperature, so that the temperature of the aerosol generating substrate 120 is accurately controlled within a certain temperature range, and the problems that the heating temperature of the aerosol generating substrate 120 is too high, the aerosol generating substrate 120 is burnt and the like are prevented, so that the temperature of the aerosol generating substrate 120 can be accurately controlled, further, a temperature measuring component is not required to be additionally arranged in the heating device, and the production cost is effectively reduced.

Moreover, above-mentioned aerosol substrate structure 100 compares in the scheme that the outside of aerosol generation substrate 120 wraps the paper material, and this embodiment uses heating element 121 parcel aerosol generation substrate 120, can also further prevent to have the taste of the paper of toasting in the suction process, has promoted user's taste of inhaling.

In one embodiment, at least one side of the heating element 121 facing the aerosol-generating substrate 120 is made of a ferromagnetic material having a curie point temperature. For example, the substrate section 111 may have a double-layer structure in which the outer side wall of the heating element 121 is made of a heat insulating material and the inner side wall of the heating element 121 is made of a ferromagnetic material having a curie point temperature. Thus, the heat generating body 121 is closer to the aerosol-generating substrate 120, and heat loss during heat transfer is less.

In one embodiment, as shown in fig. 1, when the aerosol-generating substrate 120 is contained in the heating element 121, the aerosol-generating substrate 120 may be in direct contact with the inner surface of the heating element 121 so that the heat generated by the heating element 121 can be directly transferred to the aerosol-generating substrate 120. When the aerosol-generating substrate 120 has a gap with the inner surface of the heating body 121, heat needs to be transferred from the heating body 121 to the aerosol-generating substrate 120 through the air medium, and the aerosol-generating substrate 120 is in direct contact with the inner surface of the heating body 121, heat does not need to be transferred in the air medium, further reducing heat loss during heat transfer.

In one embodiment, the heating element 121, the air channel segment 112, and the filter segment 113 may be hollow tubular in shape and may be cylindrical in shape, and in other embodiments, the substrate segment 111, the air channel segment 112, and the filter segment 113 may be other shapes. Further, the substrate segment 111, the air channel segment 112, and the filter segment 113 may be identical in shape and may each be cylindrical.

In one embodiment, the inner and outer diameters of the heat generating body 121, the air passage section 112 and the filter section 113 may be the same, so that the side wall of the substrate section 111, the side wall of the air passage section 112 and the side wall of the filter section 113 abut in sequence.

In the present embodiment, as shown in fig. 1, the arrows in fig. 1 indicate the flow direction of the airflow. The closed cavity 111d of the substrate section 111 may comprise only the first opening 111b, i.e. the other ends of the closed cavity 111d than the first opening 111b are sealed ends, such that no gas flow can enter from the substrate section 111.

Specifically, in this embodiment, the air duct section 112 is provided with at least one first air inlet hole 112b, and the number of the first air inlet holes 112b is at least one. The first air intake apertures 112b communicate the ambient atmosphere with the suction channel 112a so that an air flow can enter the suction channel 112a from the first air intake apertures 112b, thereby carrying the aerosol generated in the substrate segment 111 and passing through the suction channel 112a into the interior space of the filter segment 113 and out the second opening 113a of the filter segment 113 to effect a user's smoking process.

The aerosol-generating substrate structure 100 is configured such that the substrate segment 111 forms a closed cavity 111d to receive the aerosol-generating substrate 120 through the closed cavity 111d, so that when the aerosol-generating substrate 120 is received in the heating element 121, the aerosol-generating substrate 120 can be in a closed state to prevent the aerosol-generating substrate 120 in the aerosol-generating substrate structure 100 from falling out to the heating device during or after the smoking process. At the same time, it is possible to allow the residues of the aerosol-generating substrate 120 to be taken out along with the aerosol-substrate structure 100 after the completion of the suction, avoiding the problems of leaving or sticking to the heating device, facilitating the cleaning of the heating device.

In addition, in the process of smoking, the air flow does not pass through the aerosol generation substrate 120 in the substrate segment 111, the cracking reaction of the aerosol generation substrate 120 is not affected by cold air, the cracking reaction is stable, the consistency of the substance components of the generated aerosol is facilitated, and the smoking taste of a user is further facilitated to be improved.

Since the formed aerosol has a displacement effect on the gas in the closed cavity 111d, the oxygen content in the substrate section 111 decreases as the heating process proceeds, and at this time, the aerosol-generating substrate 120 does not burn even if the heating temperature is increased. Therefore, the heating temperature of the aerosol-generating substrate 120 can be further increased to sufficiently release the flavor component in the aerosol-generating substrate 120, thereby enhancing the smoking taste of the user.

In a specific embodiment, as shown in fig. 1, the heating element 121 has an annular side wall 111e and a bottom wall 111f, and the bottom wall 111f is disposed at an end of the annular side wall 111e away from the air duct section 112 and encloses with the annular side wall 111e to form a closed cavity 111 d. The annular side wall 111e and the bottom wall 111f can close the end of the heating element 121 far away from the air duct section 112 through close fit, or the annular side wall 111e and the bottom wall 111f can be integrally formed, that is, the heating element 121 is integrally formed, and the closed cavity 111d is integrally formed, so that the end of the substrate section 111 far away from the air duct section 112 is closed. Compare in annular lateral wall 111e and diapire 111f and closely cooperate, the leakproofness that airtight chamber 111d for integrated into one piece enables the inside leakproofness of substrate section 111 better, and under the condition that carries, removes, unseals and other receive the exogenic action, diapire 111f also is difficult to become flexible and drops, can prevent that aerosol from producing substrate 120 and falling out and make the difficult clear problem of heating device, can prevent simultaneously that the air current from getting into substrate section 111, arouse the poor problem of uniformity of the aerosol that produces.

In the first embodiment, as shown in fig. 1, the material of the annular side wall 111e and the bottom wall 111f of the substrate segment 111 is ferromagnetic material with curie point temperature, and the annular side wall 111e and the bottom wall 111f are integrally formed. The aerosol-substrate structure 100 draws aerosol through the first plurality of air intake apertures 112 b.

The substrate segment 111 of the first embodiment is a closed structure, and the airflow does not pass through the substrate segment 111, so that the outflow of the aerosol generated in the substrate segment 111 is difficult compared with a structure with two open ends of the substrate segment 111, and the aerosol cannot be taken out by the airflow or the taken-out aerosol is small in quantity, which affects the smoking experience of the user.

The specific number of the first air inlet holes 112b can be selected according to actual conditions, since the larger the number of the first air inlet holes 112b, the lower the temperature of the air flow in the aerosol-substrate structure 100, the lower the suction resistance, and the trend that the amount of aerosol sucked by the aerosol-substrate structure 100 increases and then decreases as the number of the first air inlet holes 112b increases. Specifically, a plurality of are got to the quantity of first inlet port 112b, and the first venthole of a plurality of distributes along the circumference direction interval of air flue section 112, and preferably, the even interval distribution of the circumference direction of the first venthole of a plurality of along air flue section 112 to make each radial direction's of air flue section 112 admit air comparatively evenly.

Specifically, the shape of the first air intake holes 112b can be circular, oval, diamond, square, etc., and the shape of the first air intake holes 112b should be selected according to the production process and cost of the aerosol-substrate structure 100.

In particular, as the larger the aperture of the first air intake apertures 112b, the lower the temperature of the air flow within the aerosol-substrate structure 100, the greater the amount of aerosol drawn by the user, the lower the resistance to draw. Therefore, the aperture size of the first air intake hole 112b can be selectively set according to actual conditions. Of course, considering the supporting effect of the air duct section 112, the number and the aperture size of the first air inlet holes 112b can be designed in combination with the diameter of the air duct section 112, so as to avoid the problem that the air duct section 112 is easy to deform and collapse due to an excessively large opening area, and further the suction channel 112a is blocked. In one embodiment, the aperture size of the first air intake holes 112b may be 0.2mm to 1 mm.

In one embodiment, the linear distance of the first air intake apertures 112b from the first opening 111b may be 2mm to 14mm to shorten the linear distance of the first air intake apertures 112b from the first opening 111b to enable a user to draw a greater amount of aerosol at higher air flow temperatures within the aerosol substrate structure 100.

In an exemplary embodiment, the first air inlet hole 112b can be disposed at an end of the air duct section 112 near the substrate section 111, but the first air inlet hole 112b can be disposed at other positions of the air duct section 112. The position of the openings can be designed according to the structure of the aerosol-generating device 200 (see fig. 6 below), and it should be noted that the design of the positions of the openings should avoid the aerosol-generating device 200 blocking the first air inlet holes 112b, thereby affecting the air intake of the aerosol-substrate structure 100.

Preferably, in a specific embodiment, the number of the first outlet holes is 4 to 10, the first outlet holes are all circular, the diameter of the circular first inlet hole 112b is 0.6 to 0.8mm, and the straight lines of the plurality of first inlet holes 112b and the first opening 111b are all spaced apart by 4 to 10m and are evenly distributed in the circumferential direction of the air duct section 112. The design of this kind of first venthole enables the volume of the aerosol of suction comparatively abundant, and suction resistance is moderate, and the temperature of air current is moderate, and user's suction experience is better.

As can be seen from the above analysis, when the substrate segment 111 is in the sealed structure, the heating temperature of the aerosol-generating substrate 120 is higher than that of the non-sealed structure, and the opening position of the first air inlet hole 112b is usually closer to the substrate segment 111, so that the temperature of the aerosol sucked by the user is usually higher, which may bring a poor smoking experience to the user.

In view of this, in an embodiment, please refer to fig. 2, and fig. 2 is a cross-sectional view of the aerosol substrate structure 100 provided in the second embodiment, in consideration of the problem that the temperature of the aerosol sucked by the user is relatively high, the sidewall of the air duct section 112 is provided with a plurality of first air inlet holes 112b, and at the same time, a plurality of second air inlet holes 112c are further provided, and the second air inlet holes 112c cool the aerosol entering the suction channel 112a by introducing the external cold air during the suction process.

In one embodiment, as shown in fig. 2, a plurality of first air inlet holes 112b are formed at an end of the air duct section 112 close to the substrate section 111, and a plurality of second air inlet holes 112c are formed at an end of the air duct section 112 far from the substrate section 111. The aperture of the second air inlet hole 112c is smaller than that of the first air inlet hole 112b, so that most of the air flow enters through the first air inlet hole 112b and drives the aerosol generated by the substrate segment 111 to pass through the suction channel 112a and the filter segment 113 for the user to suck, and the suction process of the aerosol is realized. A small part of the air flow enters through the second air inlet holes 112c, because the aperture of the second air inlet holes 112c is small, the air flow entering through the second air inlet holes 112c is small, no obvious dilution effect is generated on the aerosol, and meanwhile, the temperature of the aerosol entering the filter section 113 can be properly reduced, so that the temperature of the aerosol sucked by a user is moderate, and the sucking experience of the user is met.

In one embodiment, the second air intake holes 112c are spaced along the circumferential direction of the air duct section 112. Preferably, the plurality of first air outlet holes and the plurality of second air inlet holes 112c are uniformly distributed at intervals along the circumferential direction of the air duct section 112, so that air inlet in each radial direction of the air duct section 112 is uniform.

In one embodiment, as shown in fig. 2, the air channel section 112 includes a second plurality of air intake holes 112d, and the second plurality of air intake holes 112d are located at an end of the air channel section 112 away from the substrate section 111. Each of the second intake hole sets 112d has a plurality of second intake holes 112c therein. The plurality of second air intake hole sets 112d are arranged at intervals along the axial direction of the air duct section 112, and the plurality of second air intake holes 112c in each second air intake hole set 112d are arranged at intervals along the circumferential direction of the air duct section 112. Through setting up a plurality of second inlet port sets 112d, can reduce the temperature of air current in air flue section 112 by a bigger degree, improve user's suction experience.

In the second embodiment, as shown in fig. 2, the side wall of the air duct section 112 is provided with a plurality of first air intake holes 112b and two second air intake hole sets 112d, and each of the two second air intake hole sets 112d includes a plurality of second air intake holes 112 c. The plurality of first air inlet holes 112b are uniformly and circumferentially arranged on one side, close to the substrate section 111, of the air flue section 112, the two second air inlet hole sets 112d are arranged on one side, close to the filter section 113, of the air flue section 112, and the plurality of second air inlet holes 112c in each second air inlet hole set 112d are uniformly arranged at intervals along the circumferential direction of the air flue section 112.

In one embodiment, referring to fig. 3 and 4, fig. 3 is a cross-sectional view of a third embodiment of an aerosol substrate structure 100. Fig. 4 is a cross-sectional view of a fourth embodiment of an aerosol-substrate structure 100. A cooling medium 112e may also be provided in the air duct segment 112 for cooling the aerosol entering the air duct segment 112, thereby improving the suction experience of the user. The material of the temperature reducing medium 112e can be polylactic acid or cellulose acetate.

In one embodiment, referring to fig. 3, the cooling medium 112e is disposed on the inner sidewall of the air duct section 112 along the axial direction of the air duct section 112 and avoids the position of the first air inlet hole 112 b. The temperature reducing medium 112e may be disposed on a portion of the inner sidewalls of the air duct section 112, or may be disposed on all of the inner sidewalls of the air duct section 112. In other embodiments, the cooling medium 112e may also be disposed in the side wall of the airway segment 112, or the cooling medium 112e may also be disposed on the outer side wall of the airway segment 112.

In a third embodiment, as shown in fig. 3, the temperature reducing medium 112e penetrates the air duct section 112 in the axial direction of the air duct section 112, i.e. the temperature reducing medium 112e extends from the first opening 111b to the location where the air duct section 112 is connected to the filter section 113. The cooling medium 112e is disposed on all inner side walls of the air duct section 112 and avoids the position of the first air inlet hole 112b, the cooling medium 112e is a hollow cavity, and a space enclosed by the inner surface of the cooling medium 112e forms a suction channel 112 a. During the suction process, the temperature reducing medium 112e can reduce the temperature of the air flow from all directions when the air flow passes through the suction passage 112 a.

In one embodiment, the temperature reducing medium 112e can be configured to pass through the airflow, and the aerosol in the air duct section 112 can flow through the temperature reducing medium 112e, so that the temperature reducing medium 112e can be configured to uniformly reduce the temperature of the aerosol in the air duct section 112. In the fourth embodiment, as shown in fig. 4, a temperature reducing medium 112e is filled in the suction passage 112a and is located at one end of the air duct section 112 away from the substrate section 111. After the air flow enters the suction channel 112a from the first air inlet holes 112b, the aerosol generated by the substrate segment 111 flows through the cooling medium 112e, and the cooling medium 112e can uniformly cool the aerosol, so that the temperature of the aerosol sucked by the end user is moderate, and the suction experience of the user is improved.

In one embodiment, in addition to being filled with filter media 114, filter segment 113 may also be filled with a cooling media 112e to cool the aerosol flowing through filter segment 113.

In one embodiment, the side walls of the airway segment 112 may be formed of a cooling medium 112e to cool the airflow within the suction passage 112 a. The above methods of cooling the air flow in the suction passage 112a may be used in combination, and are not limited to the respective methods used individually.

In one embodiment, as shown in fig. 5, fig. 5 is a cross-sectional view of a fifth embodiment aerosol-substrate structure 100 provided herein. The inner side wall of the air duct section 112 may also be provided with a support medium 112f for supporting the air duct section 112 and preventing the air duct section 112 from deforming, collapsing and even blocking the suction channel 112a, which may affect the suction process of the aerosol-substrate structure 100.

In one embodiment, as shown in fig. 5, the supporting medium 112f is disposed on the inner sidewall of the air duct section 112 along the axial direction of the air duct section 112 and avoids the position of the first air intake hole 112 b. The support media 112f may be disposed on a portion of the inner sidewalls of the duct section 112 or may be disposed on all of the inner sidewalls of the duct section 112.

In a fifth embodiment, as shown in fig. 5, the supporting media 112f extends through the air duct section 112 in the axial direction of the air duct section 112, i.e. the supporting media 112f extends from the first opening 111b to the location where the air duct section 112 is connected to the filter section 113. The supporting medium 112f is disposed on the entire inner side wall of the air duct section 112 and avoids the position of the first air inlet hole 112b, the inside of the supporting medium 112f is hollow, that is, the supporting medium 112f is a hollow cavity, and a space enclosed by the inner surface of the supporting medium 112f forms the suction channel 112 a. In the fifth embodiment, the air duct section 112 is made of paper material, and the supporting medium 112f is made of acetate fiber, so that the supporting medium 112f can effectively prevent the paper material from deforming and collapsing. The acetate fibers may be used as the temperature reducing medium 112e to reduce the temperature of the air flow in the suction passage 112a, in addition to the supporting medium 112f in the sixth embodiment.

Referring to fig. 6, fig. 6 is a schematic structural diagram of the aerosol generating device 200 provided in the present application. The aerosol generating device 200 is used to heat the baked aerosol substrate structure 100 and generate an aerosol for consumption by a user.

The aerosol generating device 200 comprises a heating device 210 and an aerosol-substrate structure 100. The heating device 210 includes a power supply assembly 211 and a heating assembly 212, wherein the power supply assembly 211 is connected to the heating assembly 212 for supplying power to the heating assembly 212. The heating assembly 212, when energized, is capable of heating the aerosol-generating substrate 120 in the aerosol-substrate structure 100 to form an aerosol.

The aerosol-substrate structure 100 in the aerosol-generating device 200 may also refer to the structure and function of the aerosol-substrate structure 100 according to any of the above embodiments, and may achieve the same or similar technical effects, which are not described herein again.

The power supply assembly 211 includes a battery (not shown) and a controller (not shown) electrically connected to both the battery and the heating assembly 212. The battery is used to provide power to the heating assembly 212 to heat the aerosol-substrate structure 100. The controller is used for controlling the start and stop of heating of the heating assembly 212 and can control parameters such as heating power, temperature and the like.

In one embodiment, as shown in fig. 6, the material of the heating element 121 in the substrate segment 111 of the aerosol-substrate structure 100 in the aerosol-generating device 200 comprises a ferromagnetic material having a curie point temperature. The heating assembly 212 is an electromagnetic coil 212a, and the power supply assembly 211 is connected to the electromagnetic coil 212a and is used for supplying power to the electromagnetic coil 212 a. The electromagnetic coil 212a is adapted to generate a magnetic field upon energization to cause the heating element 121 in the aerosol-generating substrate structure 100 to heat the aerosol-generating substrate 120 by electromagnetic induction to form an aerosol.

In the aerosol-generating device 200, compared with the prior art in which the heating element 121 is disposed in the heating device 210, the heat generated by the heating element is conducted to the aerosol-generating substrate 120 through a series of media, such as air and a paper material wrapping the aerosol-generating substrate 120, in this embodiment, the aerosol-generating substrate 120 is disposed in the heating element 121 made of a ferromagnetic material having a curie point temperature, and the heating element 121 can directly serve as the heating element to generate heat through electromagnetic induction, so as to heat the aerosol-generating substrate 120 inside the heating element 121. Heat is transferred directly from the heating element 121 to the aerosol-generating substrate 120, reducing the medium through which the heat is transferred, thereby reducing heat loss during conduction.

In this embodiment, the substrate segment 111 of the aerosol-generating substrate structure 100 in the aerosol-generating device 200 has a closed cavity 111d, and the aerosol-generating substrate 120 is disposed within the closed cavity 111 d. The aerosol-generating substrate 120 may be in direct contact with the inner surface of the enclosed cavity 111 d.

By providing a closed cavity 111d in the substrate section 111 of the aerosol-generating substrate structure 100 in the aerosol-generating device 200, the aerosol-generating substrate 120 housed in the closed cavity 111d can be brought into a closed state, so that the aerosol-generating substrate 120 does not fall out of the aerosol-generating substrate structure 100 into the heating device 210 during use of the aerosol-generating substrate structure 100. After smoking, the residue of the aerosol-generating substrate 120 can be removed with the aerosol-substrate structure 100 and does not remain or adhere to the heating device 210, facilitating cleaning of the heating device 210.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. An aerosol substrate structure comprising at least:

the filter comprises a substrate segment, an air channel segment arranged at one end of the substrate segment, and a filter tip segment arranged at one end of the air channel segment far away from the substrate segment;

the substrate section comprises an aerosol generating substrate and a heating body, the heating body is provided with a closed cavity, and the aerosol generating substrate is arranged in the closed cavity; the material of the heating body comprises a ferromagnetic material with Curie point temperature, so that the aerosol generating substrate is heated and atomized through electromagnetic induction to form aerosol.

2. An aerosol substrate structure according to claim 1, wherein at least the side of the heating element facing the aerosol generating substrate is made of the ferromagnetic material having a curie point temperature.

3. An aerosol substrate structure according to claim 2, wherein the heating element is made of a ferromagnetic material having a curie point temperature.

4. An aerosol substrate structure according to claim 3, wherein the ferromagnetic material is an iron-nickel alloy.

5. An aerosol substrate structure according to claim 1, wherein the inner surface of the heat generating body is in direct contact with the aerosol generating substrate.

6. An aerosol substrate structure according to claim 1, wherein the air channel section has a suction channel; one end of the closed cavity is provided with a first opening, and the suction channel is communicated with the closed cavity through the first opening; the suction channel is in communication with the ambient atmosphere to admit air during a suction process to draw the aerosol formed in the substrate segment.

7. An aerosol substrate structure according to claim 6, wherein the heating element is a tubular body with a sealed side wall, and the end of the tubular body connected to the air duct section is an open end, and the open end serves as the first opening; the end of the tubular body, which is far away from the connection of the air passage section, is a sealing end.

8. An aerosol substrate structure according to claim 6, wherein the inner side wall of the air duct section is provided with a support medium for supporting the air duct section, the support medium is hollow inside, and the space enclosed by the inner surface of the support medium forms the suction channel.

9. An aerosol substrate structure according to claim 8, wherein the filter segment is in communication with the air passage segment and is filled with a filter medium for filtering the aerosol drawn by the air passage segment.

10. An aerosol substrate structure according to claim 9, wherein the material of the air duct section and/or the filter section is a paper or foil based material;

the support medium and/or the filter medium are/is acetate fibers.

11. An aerosol generating device, comprising:

an aerosol substrate structure; the aerosol-substrate structure is according to any one of claims 1 to 10;

the heating device comprises a power supply assembly and an electromagnetic coil; the power supply assembly is connected with the electromagnetic coil and used for supplying power to the electromagnetic coil; the electromagnetic coil is used for generating a magnetic field after being electrified so that the heating body in the aerosol substrate structure heats and atomizes the aerosol generation substrate through electromagnetic induction.