VAPORIZATION DEVICE

A vaporization device includes: a host; a suction nozzle detachably connected to the host; and an aerosol-generating product connected between the host and the suction nozzle, the aerosol-generating product including a container, an accommodating cavity being formed in the container, the accommodating cavity for accommodating an aerosol-generating substrate. The host includes a heating assembly for heating the aerosol-generating substrate. The suction nozzle includes an air outlet channel through which the accommodating cavity is in communication with an outside.

CROSS-REFERENCE TO PRIOR APPLICATION

Priority is claimed to Chinese Patent Application No. 202310594693.0, filed on May 24, 2023, the entire disclosure of which is hereby incorporated by reference herein.

FIELD

The present invention relates to the field of vaporization technologies, and more specifically, to a vaporization device.

BACKGROUND

An aerosol is a colloidal dispersion system formed by solid or liquid small particles dispersed and suspended in an air medium. The aerosol can be absorbed by the body through the respiratory system, providing a user with a novel and alternative absorption manner. A vaporization device refers to a device that forms an aerosol through heating or ultrasound by using stored vaporizable media. The vaporizable media include liquid, gel, paste, or a solid aerosol-generating substrate. These media are vaporized, which may deliver an inhalable aerosol to a user, thereby replacing a conventional product form and absorption manner.

Before initial use or after the aerosol-generating substrate is used up, usually the user is required to fill the aerosol-generating substrate. However, this causes a filling amount and quality of the aerosol-generating substrate to be uncontrollable, or other vaporization particles are introduced in a filling process, affecting a user experience.

SUMMARY

In an embodiment, the present invention provides a vaporization device, comprising: a host; a suction nozzle detachably connected to the host; and an aerosol-generating product connected between the host and the suction nozzle, the aerosol-generating product comprising a container, an accommodating cavity being formed in the container, the accommodating cavity being configured to accommodate an aerosol-generating substrate, wherein the host comprises a heating assembly configured to heat the aerosol-generating substrate, and wherein the suction nozzle comprises an air outlet channel through which the accommodating cavity is in communication with an outside.

DETAILED DESCRIPTION

In an embodiment, the present invention provides an improved vaporization device for a problem of uncontrollable filling quantity and quality of an aerosol-generating substrate.

In an embodiment, the present invention provides a vaporization device, including a host, a suction nozzle detachably connected to the host, and an aerosol-generating product connected between the host and the suction nozzle, wherethe aerosol-generating product includes a container, and an accommodating cavity configured to accommodate an aerosol-generating substrate is formed in the container, andthe host includes a heating assembly configured to heat the aerosol-generating substrate, and the suction nozzle includes an air outlet channel through which the accommodating cavity is in communication with the outside. In some embodiments, the host is magnetically connected to the suction nozzle.

In some embodiments, one end of the aerosol-generating product is detachably or non-detachably connected to the suction nozzle, and the other end of the aerosol-generating product is detachably connected to the host.

In some embodiments, a vaporization cavity is formed at an end of the host that is connected to the suction nozzle, and the aerosol-generating product is at least partially detachably accommodated in the vaporization cavity.

In some embodiments, the vaporization cavity is at least partially formed in the heating assembly.

In some embodiments, the heating assembly includes an inductive heating source configured to generate a fluctuating electromagnetic field, and the aerosol-generating product is configured to be at least partially located in the fluctuating electromagnetic field when being joined to the host.

In some embodiments, the container includes a susceptor material or is made of a susceptor material.

In some embodiments, the aerosol-generating product further includes a heating element arranged in the accommodating cavity, and the heating element includes a susceptor material or is made of a susceptor material.

In some embodiments, a heating cavity configured to accommodate the aerosol-generating substrate is formed in the heating element.

In some embodiments, the suction nozzle includes a temperature sensor arranged in the air outlet channel. In some embodiments, the suction nozzle further includes two first electrodes electrically connected to the temperature sensor, the host includes two second electrodes, and the two first electrodes and the two second electrodes are conducted upon abutting against with each other.

In some embodiments, the aerosol-generating product includes the aerosol-generating substrate accommodated in the accommodating cavity.

In some embodiments, the vaporization device further includes an air inlet channel through which the accommodating cavity is in communication with the outside.

In some embodiments, the suction nozzle includes an air guide tube, an inner wall surface of the air guide tube defines an air guide channel, and one of the air inlet channel and the air outlet channel includes the air guide channel.

In some embodiments, an end of the container has an opening, the air guide tube extends into the opening, a vent gap is formed between an outer wall surface of the air guide tube and an inner wall surface of the opening, and the other of the air inlet channel and the air outlet channel is in communication with the vent gap.

In some embodiments, at least one air inlet passage and at least one air outlet passage are formed at an end of the aerosol-generating product, the air inlet channel is in communication with the at least one air inlet passage, and the air outlet channel is in communication with the at least one air outlet passage.

In some embodiments, the air inlet channel includes at least one side air inlet passage extending inward in a horizontal direction from an outer side surface of the suction nozzle and at least one inner air inlet passage in communication with the at least one side air inlet passage, and the at least one inner air inlet passage is located inside the suction nozzle and extends in a longitudinal direction.

In some embodiments, the aerosol-generating product further includes a mesh sheet arranged in the accommodating cavity. Implementing the present invention has at least the following beneficial effects: The aerosol-generating product is preloaded with the aerosol-generating substrate. When the aerosol-generating substrate in the aerosol-generating product is used up, the aerosol-generating substrate may be renewed by replacing the aerosol-generating product, thereby implementing precise control of a quantity of aerosol-generating substrates, ensuring quality of the aerosol-generating substrate, and avoiding introduction of other impurities when manually adding the aerosol-generating substrate.

To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific implementations of the present invention are described with reference to the accompanying drawings. In the following description, many specific details are provided to facilitate a full understanding of the present invention. However, the present invention may alternatively be implemented in other manners different from those described herein, and a person skilled in the art may make similar modifications without departing from the content of the present invention. Therefore, the present invention is not limited to the embodiments disclosed below.

In the description of the present invention, it should be understood that orientation or position relationships indicated by the terms such as “vertical”, “horizontal”, “on”, “below”, “top”, “bottom”, “inside”, and “outside” are based on orientation or position relationships shown in the accompanying drawings or orientation or position relationships in which a product of the present invention is usually placed during use, and are used only for case and brevity of illustration and description of the present invention, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of the present invention.

In addition, the terms “first” and “second” are used merely for the purpose of description, and shall not be construed as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, features defining “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present invention, unless otherwise explicitly and specifically defined, “a plurality of” means at least two, for example, two, three and the like.

In the present invention, it should be noted that unless otherwise clearly specified and limited, the terms “mounted”, “connected”, “connection”, and “fixed” should be understood in a broad sense. For example, a connection may be a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection or an electrical connection; may be a direct connection or an indirect connection by means of an intermediate medium; or may be internal communication between two elements or interaction relationship between two elements, unless otherwise clearly limited. A person of ordinary skill in the art may understand the specific meanings of the foregoing terms in the present invention according to specific situations.

In the present invention, unless explicitly specified or limited otherwise, a first characteristic “on” or “under” a second characteristic may be the first characteristic in direct contact with the second characteristic, or the first characteristic in indirect contact with the second characteristic by using an intermediate medium. In addition, that the first feature is “above” the second feature may indicate that the first feature is directly above or obliquely above the second feature, or may merely indicate that the horizontal position of the first feature is higher than that of the second feature. The first feature “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that a horizontal height of the first feature is less than that of the second feature.

FIG.1toFIG.4show a vaporization device100in some embodiments of the present invention. The vaporization device100is configured to heat an aerosol-generating substrate33to generate an aerosol for a user to use. The vaporization device100may include a vaporizer40and an aerosol-generating product30at least partially detachably connected to the vaporizer40. The aerosol-generating substrate33is accommodated in the aerosol-generating product30. A heating manner of the vaporization device100may use one or a combination of heat conduction, electromagnetism, infrared radiation, ultrasound, microwave, plasma, and the like. The aerosol-generating substrate33includes, but is not limited to, materials used for objectives such as medical treatment, health-preserving, health, and beauty. The aerosol-generating substrate33may include solid, liquid, or gel, or may include any combination of two or more of solid, liquid, or gel.

The aerosol-generating substrate33may include one or more of nicotine, nicotine base, nicotine salts, nicotine derivatives, and nicotine analogues. The nicotine salts may be selected from a list including the following items: nicotine citrate, nicotine lactate, nicotine pyruvate, nicotine bitartrate, nicotine pectate, nicotine alginate, and nicotine salicylate.

The aerosol-generating substrate33may include an aerosol-forming agent. The term “aerosol-forming agent” is used to describe any proper known compound or mixture of compounds. The aerosol-forming agent helps promote and stabilize formation of an aerosol in use, and is substantially resistant to heat degradation at an operating temperature of the aerosol-generating product30. The proper aerosol-forming agent includes, but is not limited to: polyols, such as a triethylene glycol, 1,3-butanediol, and glycerin; esters of polyols, such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and fatty acid esters of monocarboxylic acid, dicarboxylic acid, or polycarboxylic acid, such as dimethyldodecanedioate and dimethyltetradecanedioate. Preferably, the aerosol-forming agent is a polyol or mixture of the polyol, such as a triethylene glycol, 1,3-butanediol, and glycerol.

The aerosol-generating substrate33may further include fragrance. The fragrance may include volatile fragrance components. In some embodiments, the fragrance may include menthol. The term “menthol” is used to indicate any form of the isomer of the compound 2-isopropyl-5-methylcyclohexanol. The fragrance is available in scents selected from menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon. The fragrance may include volatile tobacco fragrance compounds that are released from a substrate upon heating.

The aerosol-generating substrate33may further include tobacco or a tobacco-containing material. For example, the aerosol-generating substrate33may include any one of the following: tobacco leaves, a tobacco vein segment, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast leaf tobacco, and expanded tobacco. Optionally, the aerosol-generating substrate33may include tobacco powder compressed with, for example, glass or ceramic or another proper inert material. When the aerosol-generating substrate33includes liquid or gel, in some embodiments, the aerosol-generating product30may include an adsorbent carrier. The aerosol-generating substrate33may be coated on the adsorbent carrier or impregnated into the adsorbent carrier. For example, a nicotine compound and the aerosol-forming agent may be combined with water into a liquid formulation. In some embodiments, the liquid formulation may further include the fragrance. The liquid formulation may then be absorbed into the adsorbent carrier or coated on a surface of the adsorbent carrier. The adsorbent carrier may be a sheet or tablet of a cellulose-based material onto which the nicotine compound and the aerosol-forming agent may be coated or absorbed.

When the aerosol-generating substrate33includes solid, the aerosol-generation substrate33may include one or more forms of solid in the form of pulverized solid, granular solid, powdered solid, granulated solid, strip-shaped solid, or sheet-shaped solid. When the aerosol-generating substrate33includes plant-based materials, the aerosol-generating substrate33may include one or more of a root, a stem, a leaf, a flower, a bud, a seed, and the like of a plant.

The vaporizer40may include a suction nozzle10and a host20that are connected to each other. The suction nozzle10is detachably arranged on an end of the host20, and an air outlet channel11is formed in the suction nozzle10. The aerosol-generating product30is connected between the suction nozzle10and the host20, and is in communication with the air outlet channel11. The host20may generate energy after being powered on to heat the aerosol-generating substrate33stored in the aerosol-generating product30. The aerosol generated after the aerosol-generating substrate33is heated may flow out through the air outlet channel11for a user to use. The aerosol-generating product30is generally designed as a low-volume structure, for example, in some embodiments, a volume of the aerosol-generating product30may range from 0.4 mL to 1.6 mL.

In some embodiments, the suction nozzle10, the host20, and the aerosol-generating product30are detachably assembled together. The aerosol-generating product30is preloaded with the aerosol-generating substrate33. When the aerosol-generating substrate33in the aerosol-generating product30is used up, the aerosol-generating substrate33may be renewed by replacing the aerosol-generating product30, thereby implementing precise control of the quantity of aerosol-generating substrates33, ensuring quality of the aerosol-generating substrate33, and avoiding introduction of other impurities when manually adding the aerosol-generating substrate33. In addition, because the suction nozzle10and the host20may be reused, a use cost of the vaporization device100is reduced. Certainly, when the aerosol-generating substrate33in the aerosol-generating product30is used up, the aerosol-generating substrate33may also be filled into the aerosol-generating product30through a known filling device/method.

In some embodiments, one end of the aerosol-generating product30may be plugged into the host20, and the other end of the aerosol-generating product30is connected to the suction nozzle10. A vaporization cavity240configured to accommodate the aerosol-generating product30may be formed at an end of the host20connected to the suction nozzle10. The vaporization cavity240has an insertion port244at an end close to the suction nozzle10. One end of the aerosol-generating product30may be inserted into the vaporization cavity240from the insertion port244, and the other end of the aerosol-generating product30may extend out of the vaporization cavity240to be connected to the suction nozzle10. In another embodiment, the other end of the aerosol-generating product30may not extend out of the vaporization cavity240. In other words, the aerosol-generating product30may be completely accommodated in the vaporization cavity240. Certainly, in some other embodiments, the aerosol-generating product30may also be inserted into the suction nozzle10.

The host20may be connected to the suction nozzle10in a magnetic attraction manner, making it easier to assemble or disassemble the suction nozzle10to or from the host20. Specifically, an end of the host20that is connected to the suction nozzle10has a support portion211, and the vaporization cavity240may be formed on the support portion211in a longitudinal direction and may be coaxially arranged with the support portion211. The support portion211may be made of materials such as plastic, and at least one magnetic attraction member26may be embedded in the support portion211. The at least one magnetic attraction member26may be a magnet or a magnetic material that may be attracted by a magnet. The host20is magnetically connected to the suction nozzle10through the magnetic attraction member26. Correspondingly, at least one magnetic attraction member16may be arranged at an end of the suction nozzle10connected to the host20, and the at least one magnetic attraction member16is magnetically engaged with the at least one magnetic attraction member26.

In this embodiment, there are two magnetic attraction members26, and the two magnetic attraction members26may be respectively located on two sides of the support portion211in a horizontal direction. Correspondingly, there are also two magnetic attraction members16, and the two magnetic attraction members16are respectively arranged in one-to-one correspondence with the two magnetic attraction members26. It may be understood that in other embodiments, the support portion211may also be made of a magnetic metal material, and therefore, the magnetic attraction member26does not need to be arranged. In some other embodiments, the host20and the suction nozzle10may also be connected together in other detachable manners such as a threaded connection, a snap connection, and the like.

The host20may include a housing21and a battery22, a circuit board23, and a heating assembly24that are arranged in the housing21. The housing21has a columnar structure, and a cross-sectional shape of the housing21may be various shapes such as a track shape, an ellipse, a circle, a square, and the like, and is not limited herein. The circuit board23is electrically connected to the battery22and the heating assembly24respectively. A control chip and related control circuits are arranged on the circuit board23, and are configured to implement calculating and controlling on the device. The battery22is configured to supply power to electronic components such as the circuit board23and the heating assembly24. The heating assembly24is engaged with the aerosol-generating product30, and is configured to heat the aerosol-generating substrate33in the aerosol-generating product30after being powered on.

In this embodiment, the battery22, the circuit board23, and the heating assembly24are respectively accommodated in a lower portion, a middle portion, and an upper portion of the housing21. In another embodiment, the battery22, the circuit board23, and the heating assembly24may also be arranged in the housing21in other manners. For example, the battery22and the circuit board23may also be arranged side by side.

In this embodiment, the host20heats the aerosol-generating substrate33in an electromagnetic induction manner. The heating assembly24includes an inductive heating source242. The inductive heating source242is electrically connected to the battery22, and may generate a fluctuating electromagnetic field after being powered on, to heat a susceptor located in the fluctuating electromagnetic field.

In this embodiment, the heating assembly24is in a shape of a tube, and the vaporization cavity240is formed in the heating assembly24. The inductive heating source242may include an induction coil2421. The induction coil2421may be wound outside the vaporization cavity240. Further, the heating assembly24may further include a bracket241and a magnetic shield243arranged outside the induction coil2421. The bracket241is configured to form the vaporization cavity240, and may be configured to mount and fix the induction coil2421. The magnetic shield243may reduce electromagnetic radiation radiated by the induction coil2421to the outside, and may be further configured to fix the induction coil2421.

The aerosol-generating product30is designed to be joined to the electrically operated host20that includes the inductive heating source242. The aerosol-generating product30includes a susceptor. The susceptor may be coupled to the inductive heating source242and interact with the inductive heating source242. The term “susceptor” is used to describe materials that may convert electromagnetic energy into heat. When the susceptor is located in the fluctuating electromagnetic field, the fluctuating electromagnetic field may generate eddy currents in the susceptor. The eddy currents may heat the susceptor through ohmic or resistive heating, thereby heating the aerosol-generating substrate33. When the susceptor includes a ferromagnetic material (such as iron, nickel, and cobalt), the susceptor may be further heated due to hysteresis losses.

The susceptor may be made of any material that may be heated in an induction manner sufficiently to cause the aerosol-generating substrate33to generate an aerosol. Proper susceptor materials may include one or more of graphite, molybdenum, silicon carbide, stainless steel, niobium, aluminum, nickel, nickel-including compounds, titanium, metal material composites, and the like. Preferably, the susceptor includes metal or carbon. Further, the susceptor may include or consist of the ferritic material. The ferritic material may include ferritic iron, ferromagnetic alloys (such as ferromagnetic steel or stainless steel), ferromagnetic particles, or ferrite. In some embodiments, the susceptor may be formed by 400 series stainless steel, such as 410 stainless steel, 420 stainless steel, or 430 stainless steel.

It may be understood that in some other embodiments, other heating manners such as heat conduction, infrared radiation, ultrasound, microwave, plasma, and the like may also be used between the heating assembly24and the aerosol-generating product30.

In some other embodiments, the aerosol-generating product30and the suction nozzle10may also be an integrated structure. The integrated structure formed by the aerosol-generating product30and the suction nozzle10may be detachably engaged with the host20, thereby avoiding a problem of cleaning the suction nozzle10. Because the host20may be reused, and the main electronic components such as the battery22, the circuit board23, and the heating assembly24are concentrated in the host20, a replacement cost may also be reduced.

In yet another embodiment, the suction nozzle10may also be rotatably or slidably mounted on the host20, and the aerosol-generating product30is detachably connected between the suction nozzle10and the host20. The aerosol-generating product30may also be updated by rotating or sliding the suction nozzle10to cover or expose the aerosol-generating product30.

FIG.5toFIG.7show an aerosol-generating product30according to a first embodiment of the present invention. In this embodiment, the aerosol-generating product30is in a shape of a cylinder, and may include a container31, a heating element32, and an aerosol-generating substrate33. An accommodating cavity310is formed in the container31, and an end of the container31has an opening311through which the accommodating cavity310is in communication with the outside. The aerosol-generating substrate33is arranged in the accommodating cavity310and may be in communication with the outside through the opening311. The outside air may enter the accommodating cavity310through the opening311, and then carry an aerosol generated by vaporization of the aerosol-generating substrate33and flow out through the opening311. The heating element32includes a susceptor material or is made of a susceptor material, and may be arranged inside or outside the container31. During use, the aerosol-generating product30is joined to the host20, so that the heating element32is located in a fluctuating electromagnetic field generated by an inductive heating source242. It may be understood that in other embodiments, the heating element32may not be arranged in the aerosol-generating product30, but the aerosol-generating substrate33may be heated in other manners such as heat conduction, infrared radiation, ultrasound, microwaves, and plasma. In addition, the aerosol-generating product30is also not limited to a shape of a cylinder, and may also be in other shapes such as a shape of a square cylinder, a shape of an elliptical cylinder, or the like.

The container31may include a container side wall312in a shape of a circular tube and a container bottom wall313arranged at an end of the container side wall312. The container side wall312and the container bottom wall313define an accommodating cavity310, and the other end of the container side wall312is open to form an opening311. The heating element32and the aerosol-generating substrate33may be filled into the accommodating cavity310from the opening311, and the container bottom wall313may be configured to support the heating element32and the aerosol-generating substrate33.

The container31may be made of high temperature resistant materials such as glass, ceramics, metal, plastic, aluminum foil, and the like. Further, the container31may be at least partially made of a transparent material. The term “transparent” is used to describe a material that allows at least a significant proportion of incident light to pass through the material, so that it is possible to see through the material. In the present invention, the substantially transparent material may allow sufficient light to pass through the material, so that the aerosol-generating substrate33in the accommodating cavity310is visible before vaporization. When the aerosol-generating substrate33in the accommodating cavity310may also be transparent, the substantially transparent material may further allow smoke or one or more other aerosols generated by the aerosol-generating substrate33to be visible during inhaling of the aerosol-generating product30.

The container31may be completely transparent. Alternatively, the container31may also have a lower level of transparency, and still transmit sufficient light, so that the aerosol-generating substrate33in the accommodating cavity310is visible before vaporization, or causing the smoke generated by the aerosol-generating substrate33or one or more other aerosols to be visible.

Further, the container31may include one or more regions made of a transparent material, so that a part of the aerosol-generating substrate33is visible via the one or more regions. In addition, the regions made of the transparent material may be colored, tinted, or colorless.

The heating element32may include or be made of a ferromagnetic metal material. The heating element32may be arranged in the container31. On one hand, the heating element32may be in direct contact with the aerosol-generating substrate33, and the heat generated by the heating element32may be directly transferred to the aerosol-generating substrate33, thereby improving heat transfer efficiency. On the other hand, the container31may play a heat insulation role, and reduce the heat transferred outward by the heating element32.

In some embodiments, a heating cavity320is formed in the heating element32, and the aerosol-generating substrate33is accommodated in the heating cavity320. Specifically, in this embodiment, the heating element32is a metal tube in a shape of a cylinder, which may include a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. The heating side wall321and the heating bottom wall322jointly define the heating cavity320. The heating bottom wall322may be supported on a container bottom wall313. An opening323is formed at an end of the heating element32opposite to the heating bottom wall322. The aerosol-generating substrate33may be filled into the heating element32through the opening323and supported on the heating bottom wall322. During assembly, the aerosol-generating substrate33may be first filled into the heating element32, and then put together into the container31; or the heating element32may also be first placed into the container31, and then the aerosol-generating substrate33is filled into the heating element32.

An outer diameter of the heating side wall321is less than an inner diameter of the container side wall312. On one hand, the heating element32may be more easily assembled into the container31. On the other hand, a gap3210may be formed between an outer surface of the heating side wall321and an inner surface of the container side wall312, which is beneficial to heat insulation, and reduces the heat transferred from the heating side wall321to the container side wall312.

In some embodiments, the gap3210may be an annular gap with a capillary force, so that after the aerosol-generating substrate33is liquefied in a heating process, the liquid aerosol-generating substrate33may enter the gap3210through a through hole3220provided on the heating element32, to avoid defects that affect a vaporization effect such as generation of odor due to an excessive temperature between the heating side wall321of the heating element32and the container31. It may be understood that in other embodiments, the gap3210may also have a non-capillary structure, or some regions may have a non-capillary structure and some regions may have a capillary structure.

There may be one or more through holes3220, and the one or more through holes3220may be provided on the heating side wall321and/or the heating bottom wall322of the heating element32. In some embodiments, a pore size of the through hole3220may range from 0.5 mm to 1.5 mm. In the range, the-aerosol-generating substrate33in the form of a paste may be prevented from flowing out of the through hole3220, and the liquefied aerosol-generating substrate33may flow out of the through hole3220. Certainly, in another embodiment, the through hole3220may not be provided on the heating element32.

In another embodiment, an outer wall surface of the heating side wall321and an inner wall surface of the container side wall312may also use fitting manners such as transition fit, interference fit, partial gap fit, or partial interference fit.

It may be understood that in other embodiments, the heating element32is not limited to the foregoing structural shape. For example, the heating side wall321may also be in a shape of a tapered tube or a stepped tube. For another example, the heating element32may also be in a shape of a circular tube without the heating bottom wall322, or may be in other shapes such as a shape of a U-shaped sheet. In addition, in some other embodiments, the heating element32may also be arranged on an outer side of the container31.

In some embodiments, an isolation layer may be further arranged on an inner surface of the heating element32, and the isolation layer may include a ceramic glaze layer or a glass glaze layer. By isolating the heating element32from the aerosol-generating substrate33through the isolation layer, odor that may be generated in the heating process may be further avoided. The through hole3220provided on the heating element32may further make it easier for the inner surface of the heating element32to be coated with glaze in a glaze plating process, thereby ensuring that the heating element32is evenly coated with glaze.

Further, in some embodiments, the aerosol-generating product30further includes a scaling component35. The sealing component35is arranged at the opening311of the container31, and is configured to seal the opening311, to prevent the aerosol-generating substrate33in the container31from flowing out, and prevent external impurities from entering the container31, thereby ensuring cleanliness inside the container31. In this embodiment, the sealing component35includes a sealing film351. The sealing film351is removably attached to a periphery of the opening311to seal the opening311. During use, the sealing film351may be first torn off, to expose the opening311. In some embodiments, the sealing film351may include a body portion3511covering the container31and a protruding portion3512extending outward from an edge of the body portion3511. The protruding portion3512extends outside the container31, to facilitate a user to tear off the sealing film351by pinching the protruding portion3512. Certainly, in another embodiment, the opening311may also be exposed by puncturing the sealing film351.

In another embodiment, the sealing component35may also include other sealing structures. For example, the sealing component35may include a thin-walled structure that may be punctured, or may include a sealing plug plugged into the opening311, or may include a scaling member covering the opening311.

In some embodiments, the aerosol-generating product30may further include a limiting member34arranged in the container31. The limiting member34is arranged between the scaling component35and the aerosol-generating substrate33, to prevent the aerosol-generating substrate33from flowing onto the sealing component35and causing waste. The limiting member34may be made of high temperature resistant materials such as metal or non-metal. Further, the limiting member34may be made of a material that cannot induce a magnetic field and generate heat, which may prevent the limiting member34from dry-burning because the aerosol-generating substrate33is fewer in the heating process and is not in contact with the limiting member34. In another embodiment, the limiting member34may also be made of a metal material that may induce a magnetic field and generate heat.

The limiting member34may be arranged on an outer side of the heating element32or may be arranged in the heating element32, and/or the limiting member34and the heating element32may be integrally arranged or separately arranged. In this embodiment, the limiting member34includes a mesh sheet341. The mesh sheet341may be a metal mesh sheet. The metal mesh sheet has advantages of high temperature resistance, no pollution, no odor, and a low cost. A plurality of mesh holes3410are formed on the mesh sheet341. Pore sizes of the mesh holes3410are in a proper range, which may allow airflow to pass through, and prevent the aerosol-generating substrate33from flowing out of the mesh holes3410. In addition, when the aerosol-generating substrate33is heated, the mesh sheet341may further prevent the aerosol-generating substrate33from sputtering outward. In another embodiment, the limiting member34may also include a hot-melt film. The hot-melt film may automatically rupture or burn after being heated, and is non-toxic, odorless, and pollution-free.

In this embodiment, the mesh sheet341is arranged on an outer side of the heating element32and abuts against an upper end surface of the heating element32. At least a part of the outer wall surface of the mesh sheet341is in contact with an inner wall surface of the container31, to implement fixation of the mesh sheet341in the container31. Further, at least a part of an outer wall surface of the mesh sheet341is in interference fit with the inner wall surface of the container31, and the mesh sheet341is fixed in the container31through the interference fit. The fixing manner has a simple structure, is easy to implement, and has high reliability.

In some embodiments, the mesh sheet341may include a sheet-shaped body3411and a plurality of limiting flanges3412extending outward from an outer edge of the sheet-shaped body3411. The plurality of mesh holes3410may be distributed in an even array on the sheet-shaped body3411, to allow air flow to evenly pass through. The plurality of limiting flanges3412may be evenly spaced in a circumferential direction of the sheet-shaped body3411, so that the mesh sheet341is evenly stressed. An outer diameter of the sheet-shaped body3411is less than an inner diameter of the container side wall312, and the mesh sheet341is in interference fit with the container side wall312through the plurality of limiting flanges3412, to facilitate the mesh sheet341to be mounted into the container31. It may be understood that in other embodiments, the limiting flanges3412may not be arranged on the mesh sheet341, but may be directly in interference fit with the container side wall312through the sheet-shaped body3411.

As shown inFIG.3andFIG.4, an air outlet channel11and an air inlet channel12are formed in a suction nozzle10. The outside air may enter the accommodating cavity310through the air inlet channel12, and then carry the aerosol generated by vaporization of the aerosol-generating substrate33and flow out through the air outlet channel11. It may be understood that in other embodiments, the air inlet channel12may also be formed in the host20, or may be partially formed in the suction nozzle10and partially formed in the host20, or at least a part of the air inlet channel12may also be formed between the suction nozzle10and the host20.

In some embodiments, the suction nozzle10may include an air guide tube13, and the air guide tube13may be made of high temperature resistant materials such as metal, high temperature resistant plastic (such as polyetheretherketone), and the like. An inner wall surface of the air guide tube13defines an air guide channel130, and the air guide channel130may be used for air inlet or air outlet.

In this embodiment, the air guide tube13is made of a non-ferromagnetic material. The air guide tube13may extend in a longitudinal direction and be coaxially arranged with the opening311and the accommodating cavity310. A lower end of the air guide tube13may extend into the opening311, and may further pass through the opening311and extend into the accommodating cavity310. An end of the air guide tube13extending into the accommodating cavity310is spaced apart from the mesh sheet341and/or the aerosol-generating substrate33. An outer diameter of the air guide tube13is less than an inner diameter of the opening311, so that an annular vent gap3111is formed between an outer wall surface of the air guide tube13and an inner wall surface of the opening311, and the vent gap3111may be used for air flow to pass through. One of the vent gap3111and the air guide channel130is used for air inlet, and the other of the vent gap3111and the air guide channel130is used for air outlet. It may be understood that in other embodiments, the air guide tube13and the opening311may also be arranged asynchronously.

In some embodiments, the air inlet channel12may include at least one side air inlet passage121in communication with the outside and at least one inner air inlet passage122communicating the at least one side air inlet passage121with the accommodating cavity310. Specifically, in this embodiment, there are two side air inlet passages121, to ensure sufficient air inlet. The two side air inlet passages121may be symmetrically provided on two opposite sides of the suction nozzle10, and each side air inlet passage121extends inward in a horizontal direction from the outer side surface of the suction nozzle10. There is one inner air inlet passage122, and the inner air inlet passage122extends in a longitudinal direction and may be coaxially arranged with the accommodating cavity310. Two ends in a longitudinal direction of the inner air inlet passage122are in communication with the side air inlet passage121and the accommodating cavity310respectively. Specifically, in this embodiment, the inner air inlet passage122is formed by the air guide channel130.

the air outlet channel11may include an exhaust channel112in communication with the outside and a communication channel111connecting the accommodating cavity310with the exhaust channel112. The exhaust channel112may be formed by a top surface of the suction nozzle10extending downward in a longitudinal direction, and the communication channel111is provided on an outer side of the air guide tube13. The aerosol generated by vaporization of the aerosol-generating substrate33may flow out through the vent gap3111, the communication channel111, and the exhaust channel112from bottom to top.

A specific structure of the communication channel111may be flexibly designed as required. For example, the communication channel111may include an annular airflow channel surrounding the air guide tube13. For another example, the communication channel111may also include a plurality of edge airflow channels spaced apart in a circumferential direction of the air guide tube13.

In some embodiments, a flow blocking structure may be further arranged in the air outlet channel11. The flow blocking structure is used to block a part of the air outlet channel11, to prevent the aerosol-generating substrate33from splashing out of the suction nozzle10upon being heated. Certainly, the mesh sheet341arranged in the accommodating cavity310may also prevent the aerosol-generating substrate33from splashing out of the suction nozzle10upon being heated. Further, in some embodiments, an auxiliary airflow hole may be further provided on a side wall of the suction nozzle10, and the auxiliary airflow hole is in communication with the communication channel111. In the vaporization process, the air in the external environment may further flow into the communication channel111from the auxiliary airflow hole, and then mix with the aerosol in the communication channel111to reduce concentration of the aerosol, causing the aerosol-generating substrate33to be vaporized with low oxygen, and adjusting a temperature of the airflow flowing out of the suction nozzle10.

In some embodiments, the vaporization device100may further include a temperature sensor14electrically connected to a circuit board23. The temperature sensor14is at least partially arranged in the air outlet channel11, and is configured to detect a temperature of the air flow in the air outlet channel11, and transmit the temperature data to the circuit board23. A related control circuit is arranged on the circuit board23, which may control a heating power of the heating assembly24according to the temperature data, and may determine whether dry burning is occurring according to the temperature data. In this embodiment, the temperature sensor14is a thermocouple, which may be arranged at an end of the exhaust channel112close to the communication channel111. In another embodiment, the temperature sensor14may also use other sensor structures such as a thermistor, and/or the temperature sensor14may also be arranged at other locations in the air outlet channel11.

Further, the suction nozzle10further includes two first electrodes15that are electrically connected to the temperature sensor14. The host20further includes two second electrodes25that are electrically connected to the circuit board23. The two first electrodes15and the two second electrodes25are in communication with each other through contact conduction. When the suction nozzle10is separated from the host20, the first electrode15is separated from the second electrode25; and when the suction nozzle10is connected to the host20, the first electrode15and the second electrode25are conducted upon abutting against each other, so that the temperature sensor14electrically connected to the circuit board23. In this embodiment, both the first electrode15and the second electrode25are electrode posts, and the first electrode15and/or the second electrode25are elastic, to improve reliability of electrical connection. In another embodiment, the first electrode15and/or the second electrode25may also include other conductive connection structures such as a conductive elastic piece. In addition, a quantity of first electrodes15and second electrodes25is not limited to two.

FIG.8shows an aerosol-generating product30according to a second embodiment of the present invention. Similar to the first embodiment, the aerosol-generating product30in this embodiment is also in a shape of a cylinder and includes a container31, a heating element32, an aerosol-generating substrate33, a mesh sheet341, and a scaling film351.

Different from the aerosol-generating product30in the first embodiment, the container31in this embodiment is an aluminum foil paper tube with two ends open. Because the container31in this embodiment does not have a container bottom wall313that may play a role of supporting, at least a part of the outer wall surface of the heating element32may be in interference fit with the inner wall surface of the container31. The heating element32is fixed in the container31through interference fit. Further, to reduce heat transferred from the heating element32to the container31and avoid burning the paper tube, a manner of interference fit between a part of the outer wall surface of the heating element32and the inner wall surface of the container31, and gap fit between a part of the outer wall surface and the inner wall surface of the container31may be used. A bottom end of the heating element32away from the mesh sheet341may extend out of the container31, or may not extend out of the container31.

The heating element32is a metal tube, and includes a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. In some embodiments, the heating side wall321may include a first side wall3211at an end close to the heating bottom wall322and a second side wall3212at an end away from the heating bottom wall322. An outer diameter of the second side wall3212may be greater than an outer diameter of the first side wall3211. According to a first aspect, an outer peripheral surface of the second side wall3212is interference fit with an inner peripheral surface of the container31, to implement fixation of the heating element32in the container31. According to a second aspect, an outer peripheral surface of the first side wall3211is in gap fit with an inner peripheral surface of the container31, which may reduce the heat transferred from the heating element32to the container31and avoid burning the paper tube. According to a third aspect, the aerosol-generating substrate33is mainly arranged in the first side wall3211close to the heating bottom wall322. The first side wall3211is a main heating region. The first side wall3211is arranged in gap fit with the container31, and the second side wall3212is arranged in interference fit with the container31, which is more conducive to reducing the heat transferred from the heating element32to the container31.

The mesh sheet341may be supported on an upper end surface of the heating element32, and an outer peripheral surface of the mesh sheet341is in interference with an inner peripheral surface of the container31, thereby implementing fixation of the mesh sheet341in the container31.

A structure of the sealing film351is similar to the structure in the first embodiment. This is not repeated herein again.

FIG.9shows an aerosol-generating product30according to a third embodiment of the present invention. Similar to the first embodiment, the aerosol-generating product30in this embodiment is also in a shape of a cylinder and includes a container31, a heating element32, an aerosol-generating substrate33, a mesh sheet341, and a sealing component35. A structure of the container31and a structure of the mesh sheet341are similar to structures in the first embodiment. This is not repeated herein again.

Similar to the first embodiment, the heating element32in this embodiment is also a metal tube, and includes a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. Different from the first embodiment, in this embodiment, at least one protrusion324is formed on the heating bottom wall322. The heating bottom wall322abuts against the container bottom wall313of the container31through the at least one protrusion324, which may reduce a direct contact area between the heating bottom wall322and the container bottom wall313, and reduce the heat transferred from the heating element32to the container31.

In addition, different from the first embodiment, the sealing component35in this embodiment includes a sealing plug352. The sealing plug352is detachably plugged into the container31, to seal or open the opening311.

In some embodiments, the sealing plug352may be made of a soft material such as silicone, and may include a sealing portion3522sealingly arranged in the opening311. The sealing plug352may further include an exposed portion3521and an extending portion3523that are respectively arranged at two ends of the sealing portion3522. The exposed portion3521extends outward from an end of the sealing portion3522facing away from the accommodating cavity310. The exposed portion3521is at least partially exposed outside the opening311, to facilitate a user to pull out the sealing plug352. The extending portion3523extends inward from an end of the sealing portion3522toward the accommodating cavity310. An end of the extending portion3523away from the sealing portion3522may press against the mesh sheet341, thereby pressing the mesh sheet341and the heating element32against the container bottom wall313. In another embodiment, an end of the extending portion3523away from the sealing portion3522may also be spaced apart from the mesh sheet341. An outer diameter of the extending portion3523may be less than an inner diameter of the container31, which may reduce a force required for the sealing plug352to be assembled into the container31.

It may be understood that in other embodiments, the sealing plug352may also be connected to the container31in a non-detachable manner. In this case, a vent hole for air flow may be provided on the sealing plug352.

FIG.10toFIG.11show an aerosol-generating product30according to a fourth embodiment of the present invention. A difference between the fourth embodiment and the third embodiment is that the mesh sheet341in this embodiment is arranged in the heating element32.

the mesh sheet341may include a sheet-shaped body3411and a plurality of limiting flanges3412extending outward from an outer edge of the sheet-shaped body3411. A plurality of mesh holes3410are provided on the sheet-shaped body3411. The plurality of limiting flanges3412may be evenly spaced in a circumferential direction of the sheet-shaped body3411.

The heating element32is a metal tube, and includes a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. at least one protrusion324is formed on an outer surface of the heating bottom wall322. The heating bottom wall322abuts against the container bottom wall313of the container31through the at least one protrusion324, which may reduce a direct contact area between the heating bottom wall322and the container bottom wall313, and reduce the heat transferred from the heating element32to the container31.

In some embodiments, the heating side wall321may include a first side wall3211at an end close to the heating bottom wall322and a second side wall3212at an end away from the heating bottom wall322. An outer diameter of the second side wall3212is greater than an outer diameter of the first side wall3211. An outer peripheral surface of the first side wall3211is in gap fit with an inner peripheral surface of the container31, which may reduce the heat transferred from the heating element32to the container31.

An inner diameter of the second side wall3212is greater than an inner diameter of the first side wall3211, so that a step surface3213is formed at a joint on an inner side between the second side wall3212and the first side wall3211, and the mesh sheet341may be arranged in the second side wall3212and abut against the step surface3213. Further, in some embodiments, a plurality of slots3214respectively corresponding to a plurality of limiting flanges3412may be further formed on the second side wall3212. The plurality of limiting flanges3412may be respectively engaged in the plurality of slots3214, to implement fixation of the mesh sheet341in the second side wall3212.

Circumferential fixation of the heating element32in the container31may be implemented through interference fit between the limiting flange3412and the container side wall312, and may also be implemented through interference fit between the second side wall3212and the container side wall312.

FIG.12andFIG.13show an aerosol-generating product30according to a fifth embodiment of the present invention. The aerosol-generating product30in this embodiment is in a shape of a cylinder and includes a container31, a heating element32, an aerosol-generating substrate33, and a scaling plug352. A structure of the container31and a structure of the sealing plug352are similar to structures in the third embodiment. This is not repeated herein again.

In this embodiment, the heating element32is a metal cylinder and is mounted in the container31in an upside down manner. Specifically, the heating element32includes a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. The heating bottom wall322is located at an end of the heating side wall321away from a container bottom wall313. At least one vent hole3221for air flow is further provided on the heating bottom wall322, so that the external air may enter the heating element32, and then carry the aerosol generated by vaporization of the aerosol-generating substrate33in the heating element32to flow out. Further, to ensure even air flow, a plurality of vent holes3221provided in an even array may be provided on the heating bottom wall322. A pore size of each vent hole3221is in a proper range, which may prevent the aerosol-generating substrate33from flowing out of the vent hole3221.

An opening323is formed at an end of the heating side wall321opposite to the heating bottom wall322. When assembling the aerosol-generating product30, the heating bottom wall322of the heating element32may be first placed downward, so that the opening323faces upward, and then the aerosol-generating substrate33is injected into the heating element32via the opening323through an injection device. Because the pore size of the vent hole3221is small and the aerosol-generating substrate33has a specific viscosity when the aerosol-generating substrate33is in the form of a paste, the aerosol-generating substrate33does not easily flow out of the vent hole3221. After the aerosol-generating substrate33is injected into the heating element32, the heating element32is mounted upside down into the container31, so that the opening323of the heating element32faces the container bottom wall313, and the heating bottom wall322is away from the container bottom wall313.

It may be understood that in this embodiment, the heating bottom wall322may function as the mesh sheet341in the foregoing embodiment, so that an additional mesh sheet341does not need to be arranged in the aerosol-generating product30in this embodiment, which reduces a cost.

FIG.14andFIG.15show an aerosol-generating product30according to a sixth embodiment of the present invention. The aerosol-generating product30in this embodiment includes a container31, a heating element32, an aerosol-generating substrate33, a sealing film351, a sealing plug352, and a fixed member36.

The container31is a glass tube in a shape of a cylinder, and may include a container side wall312in a shape of a tube and a container bottom wall313arranged at an end of the container side wall312. The container side wall312and the container bottom wall313jointly define an accommodating cavity310with an opening311at an end. The aerosol-generating substrate33is arranged in the accommodating cavity310, and a form of the aerosol-generating substrate33may include gel, paste or, solid.

The heating element32is arranged in the accommodating cavity310and is at least partially in contact with the aerosol-generating substrate33. The heating element32may induce a magnetic field in an electromagnetic environment and generate heat, thereby heating the aerosol-generating substrate33. In this embodiment, the heating element32is generally in a shape of a U-shaped sheet, and may include the heating bottom wall322and two heating side walls321separately extending upward from two ends of the heating bottom wall322in a horizontal direction. The heating bottom wall322is in a shape of a sheet and may be supported on the container bottom wall313. The two heating side walls321are separately located at two edges on two sides of a length of the heating bottom wall322and may be perpendicular to the heating bottom wall322. A length of the heating bottom wall322is less than an inner diameter of the container side wall312. On one hand, the heating element32may be more easily assembled into the container31. On the other hand, a gap may be formed between an outer surface of the heating side wall321and an inner surface of the container side wall312, which is beneficial to heat insulation, and reduces the heat transferred from the heating side wall321to the container side wall312.

The aerosol-generating substrate33is at least partially arranged between the two heating side walls321. In this embodiment, the aerosol-generating substrate33is in contact with the inner wall surface and the outer wall surface of the two heating side walls321and the heating bottom wall322, so that a contact area between the aerosol-generating substrate33and the heating element32is greater, which facilitates heat transfer from the heating element32to the aerosol-generating substrate33.

It may be understood that in other embodiments, the heating element32is not limited to the foregoing structural shape. For example, the heating side wall321may not be perpendicular to the heating bottom wall322, and/or a quantity of heating side walls321may also be three or more. Certainly, there may be only one heating side wall321, for example, the heating element32has an inverted T-shaped and sheet-shaped structure.

In some embodiments, an isolation layer may be further arranged on an inner surface and/or an outer surface of the heating element32, and the isolation layer may include a ceramic glaze layer or a glass glaze layer. The isolation layer may isolate the heating element32from the aerosol-generating substrate33, so that odor that may be generated in the heating process may be further avoided. A through hole3220may also be provided on the heating side wall321and/or the heating bottom wall322. By providing the through hole3220, a surface of the heating side wall321and/or the heating bottom wall322may be more easily coated with glaze in a glaze plating process, thereby ensuring that the heating element32is evenly coated with glaze. It may be understood that in other embodiments, the through hole3220may also not be provided on the heating element32.

The fixed member36is arranged in the container31, and is configured to implement circumferential fixation of the heating element32in the container31. The fixed member36may be made of a high temperature resistant material such as metal or non-metal. Further, the fixed member36may be arranged between the sealing plug352and the aerosol-generating substrate33, and the fixed member36may further reduce waste caused by the aerosol-generating substrate33flowing onto the sealing plug352. In some embodiments, the fixed member36may be made of a material that cannot induce a magnetic field and generate heat, which may prevent the fixed member36from dry-burning because the aerosol-generating substrate33is fewer in the heating process and is not in contact with the fixed member36. In another embodiment, the fixed member36may also be made of a metal material that may induce a magnetic field and generate heat.

In this embodiment, the fixed member36is in a shape of a sheet and is made of a metal material. The metal material has advantages of high temperature resistance, no pollution, no odor, and a low cost. At least a part of the outer wall surface of the fixed member36is in interference fit with the inner wall surface of the container31, and the fixed member36is fixed in the container31through interference fit.

A circulation hole360is provided on the fixed member36for air flow to pass through and a through hole361is provided on the fixed member36for the heating side wall321to pass through. In this embodiment, the circulation hole360is located in a middle portion of the fixed member36. There are two through holes361and the two through holes361are separately located on two opposite sides of the through hole361. The heating side wall321may include a first side wall3211extending upward from the heating bottom wall322and a second side wall3212extending upward from the first side wall3211. The width of the first side wall3211may be equal to the width of the heating bottom wall322, and may be greater than the width of the second side wall3212. The first side wall3211has the greater width, to increase a heating area. The second side wall3212passes through the through hole361, and a lower end surface of the fixed member36may abut against an upper end surface of the first side wall3211.

It may be understood that in other embodiments, the fixed member36may also not be arranged in the aerosol-generating product30, and fixation of the heating element32in the container31may be implemented through other structures. For example, an angle between the heating side wall321and the heating bottom wall322may be set to an obtuse angle, so that an upper end of the heating side wall321expands outward and abuts against an inner wall surface of the container31.

The sealing plug352is at least partially sealingly arranged in the opening311to seal the opening311. Generally, at least a part of an outer wall surface of the sealing plug352and an inner wall surface of the opening311may be sealingly engaged in manners such as interference fit. The sealing plug352may be made of a soft material such as silicone, to improve scaling performance of the sealing plug352, and make it easier to assemble the sealing plug352into the container31. In another embodiment, the sealing plug352may also be made of materials with a specific hardness such as plastic. Further, the sealing plug352may be at least partially made of a transparent material.

At least one air inlet passage3525and at least one air outlet passage3526are further formed in the sealing plug352and/or between the outer wall surface of the sealing plug352and the inner wall surface of the container31that allow the accommodating cavity310to be in communication with the external air. After the suction nozzle10, the host20, and the aerosol-generating product30are assembled, the at least one air inlet passage3525allows the accommodating cavity310to be in communication with the air inlet channel12. The at least one air outlet passage3526allows the accommodating cavity310to be in communication with the air outlet channel11.

A cross-sectional area of the at least one air inlet passage3525is not less than a cross-sectional area of the at least one air outlet passage3526, thereby ensuring sufficient air inlet, and ensuring that the aerosol generated by vaporization of the aerosol-generating substrate33may be fully carried out by the air flow. A cross-sectional area of a single air inlet passage3525or air outlet passage3526is small, so that the aerosol-generating substrate33with a specific viscosity is not easily leaked from the air inlet passage3525or the air outlet passage3526.

In this embodiment, both the at least one air inlet passage3525and the at least one air outlet passage3526are formed in the sealing plug352. Specifically, one air inlet passage3525and a plurality of air outlet passages3526are formed in the sealing plug352. The air inlet passage3525is located in a middle portion of the sealing plug352, and the plurality of air outlet passages3526are distributed around a periphery of the air inlet passage3525. A cross-sectional area of the air inlet passage3525is not less than a total cross-sectional area of the plurality of air outlet passages3526, thereby ensuring sufficient air inlet, and ensuring that the aerosol generated by vaporization of the aerosol-generating substrate33may be fully carried out.

Further, in this embodiment, the air inlet passage3525is in a shape of a circular hole, and a pore size of the air inlet passage3525may range from 2.5 mm to 3.5 mm; or a cross-sectional area of the air inlet passage3525may range from 4.5 mm2to 10 mm2. In this range, sufficient air inlet may be ensured, and the aerosol-generating substrate33may be effectively prevented from leaking from the air inlet passage3525. The air outlet passage3526is in a shape of a waist-shaped hole, and the plurality of air outlet passages3526are evenly spaced around a periphery of the air inlet passage3525. A total cross-sectional area of the plurality of air outlet passages3526may range from 2 mm2to 9 mm2, to ensure smooth air flow.

It may be understood that in other embodiments, the air inlet passage3525and the air outlet passage3526are not limited to the foregoing shapes. In addition, a quantity and arrangement of air inlet channel passages3525and air outlet passages3526are not limited. For example, there is one air outlet passage3526, and there are a plurality of air inlet passages3525, and the plurality of air inlet passages3525are distributed around a periphery of the air outlet passage3526. For another example, there are a plurality of air outlet passages3526and a plurality of air inlet passages3525, and the plurality of air outlet passages3526may be distributed around a periphery or an internal periphery of the plurality of air inlet passages3525.

The sealing plug352may include a sealing portion3522and an extending portion3523extending downward from the sealing portion3522. There is a gap between a lower end surface of the extending portion3523and the aerosol-generating substrate33. An outer wall surface of the sealing portion3522is sealingly engaged with an inner wall surface of the container side wall312. The container side wall312may further shrink inward to form a shrinking structure3121. An inner diameter of the shrinking structure3121is less than an outer diameter of the sealing portion3522, so that a lower end surface of the sealing portion3522may abut against the shrinking structure3121. The shrinking structure3121may define an axial position of the sealing portion3522, and prevent the sealing portion3522from moving downward. An upper end inner wall surface of the container side wall312may extend inward to form an inner flange3122, and the inner flange3122may prevent the sealing portion3522from moving upward. The inner flange3122engages with the shrinking structure3121, to clamp and fix the sealing portion3522.

An outer diameter of the extending portion3523is less than an inner diameter of the container31, so that an annular airflow channel3520is formed between the outer wall surface of the extending portion3523and the inner wall surface of the container31. The air inlet passage3525may extend downward in a longitudinal direction from an upper end surface of the scaling portion3522to a lower end surface of the extending portion3523. The air outlet passage3526may extend downward in a longitudinal direction from the upper end surface of the sealing portion3522to the lower end surface of the sealing portion3522and be in communication with the airflow channel3520. The structure makes a lower end air outlet of the air inlet passage3525closer to the aerosol-generating substrate33than a lower end air inlet of the air outlet passage3526. The extending portion3523may guide the external air to the aerosol-generating substrate33and mix the external air with the aerosol generated after vaporization of the aerosol-generating substrate33. The mixed gas is distributed in the airflow channel3520and then evenly flows into each air outlet passage3526. It may be understood that in other embodiments, the air inlet passage3525may also be in communication with the airflow channel3520. In other words, the lower end air inlet of the air outlet passage3526is closer to the aerosol-generating substrate33than the lower end air outlet of the air inlet passage3525. In other embodiments, the lower end air inlet of the air outlet passage3526and the lower end air outlet of the air inlet passage3525may also be on a same horizontal plane.

There is a gap between the lower end surface of the extending portion3523and the upper end surface of the heating element32, which is beneficial to heat insulation. In another embodiment, the lower end surface of the extending portion3523may also abut against the upper end surface of the heating element32or the fixed member36, to abut against and fix the heating element32and the fixed member36.

A sealing film351may be attached to an upper side of the sealing plug352, and cover at least the air inlet passage3525and the air outlet passage3526. During use, the sealing film351may be first torn off, to expose the air inlet passage3525and the air outlet passage3526. In another embodiment, the air inlet passage3525and the air outlet passage3526may also be exposed by piercing the scaling film351.

When assembling the aerosol-generating product30, the heating element32may be first mounted into the container31, then the aerosol-generating substrate33is filled into the container31, then the sealing plug352is mounted, and finally the sealing film351is attached.

FIG.16andFIG.17show an aerosol-generating product30according to a seventh embodiment of the present invention. Similar to the sixth embodiment, the aerosol-generating product30in this embodiment also includes a container31, a heating element32, an aerosol-generating substrate33, a sealing film351, and a scaling plug352. A structure of the container31, a structure of the sealing film351, and a structure of the sealing plug352are similar to structures in the sixth embodiment. This is not repeated herein again.

Similar to the sixth embodiment, the heating element32in this embodiment also includes a heating bottom wall322and two heating side walls321respectively extending upward from two ends of the heating bottom wall322. Different from the sixth embodiment, in this embodiment, each heating side wall321has at least one wing portion325extending toward a direction of the inner wall surface of the container31. In this embodiment, there are a plurality of wing portions325. The plurality of wing portions325separately extend from two edges on two sides in a horizontal direction of the heating side wall321toward a direction away from the heating bottom wall322, and may be perpendicular to the heating side wall321. Certainly, in another embodiment, the wing portion325and the heating side wall321may also be arranged at an acute angle or an obtuse angle. The heating element32may abut against the inner wall surface of the container31through the wing portion325, so that the heating element32may be fixed in the container31, and the fixed member36does not need to be arranged in the container31.

It may be understood that in other embodiments, the fixed member36or a limiting member34may also be arranged in the container31, to prevent the aerosol-generating substrate33from flowing to the sealing plug352.

FIG.18shows an aerosol-generating product30according to an eighth embodiment of the present invention. Similar to the sixth embodiment, the aerosol-generating product30in this embodiment includes a container31, a heating element32, an aerosol-generating substrate33, a scaling film351, and a sealing plug352.

Different from the sixth embodiment, the heating element32in this embodiment is in a shape of a cylinder, and may include a heating side wall321in a shape of a circular tube and a heating bottom wall322arranged at an end of the heating side wall321. The heating element32in this embodiment may be used as a container, to accommodate the aerosol-generating substrate33. A through hole3220may be further provided on the heating side wall321and/or the heating bottom wall322, to ensure that the heating element32is evenly glazed. In some embodiments, a pore size of the through hole3220may range from 0.5 mm to 1.5 mm. In the range, the aerosol-generating substrate33in the form of a paste may be prevented from flowing out of the through hole3220.

An outer diameter of the heating side wall321may be less than or equal to an inner diameter of the container31. When the outer diameter of the heating side wall321is equal to the inner diameter of the container31, the outer wall surface of the heating side wall321is in contact with the inner wall surface of the container31, thereby directly limiting the heating element32. When the outer diameter of the heating side wall321is less than the inner diameter of the container31, the outer wall surface of the heating side wall321is not in contact with the inner wall surface of the container31, which is beneficial to heat insulation and assembly. In this case, other limiting structures may be set to limit the heating element32.

In addition, a difference between this embodiment and the sixth embodiment is that a plurality of air inlet passages3525and at least one air outlet passage3526are formed in the sealing plug352in this embodiment. The plurality of air inlet passages3525are distributed around a periphery of the at least one air outlet passage3526, and a total cross-sectional area of the plurality of air inlet passages3525is not less than a cross-sectional area of the at least one air outlet passage3526.

When assembling the aerosol-generating product30, the aerosol-generating substrate33may be first filled into the heating element32, and then put together into the container31, then the sealing plug352is mounted, and finally the sealing film351is attached. Alternatively, the heating element32may also be first placed into the container31, then the aerosol-generating substrate33is filled into the heating element32, then the sealing plug352is mounted, and finally the sealing film351is attached.

FIG.19shows an aerosol-generating product30according to a ninth embodiment of the present invention. A difference between this embodiment and the sixth embodiment is that an air outlet passage3526in this embodiment is formed between an outer wall surface of a sealing plug352and an inner wall surface of a container31, and a side air outlet passage3525is formed in the sealing plug352.

Specifically, there may be a plurality of air outlet passages3526, and the plurality of air passages3526may be formed by recesses on an outer wall surface of the sealing portion3522and may be evenly spaced in a circumferential direction of the sealing portion3522.

It may be understood that in other embodiments, alternatively, the air inlet passage3525may be formed between the outer wall surface of the sealing plug352and the inner wall surface of the container31, and the air outlet passage3526is formed in the sealing plug352. Alternatively, both the air inlet passage3525and the air outlet passage3526may be formed between the outer wall surface of the sealing plug352and the inner wall surface of the container31.

FIG.20andFIG.21show an aerosol-generating product30according to a tenth embodiment of the present invention. The aerosol-generating product30in this embodiment includes a container31, an aerosol-generating substrate33, a sealing member38, and a sealing film351. An accommodating cavity310with an opening311at an end is formed in the container31, and the aerosol-generating substrate33is arranged in the accommodating cavity310. The sealing member38is arranged at the opening311, and has a first state for sealing the opening311and a second state for opening the opening311.

Specifically, in this embodiment, the container31includes a container body316and a container cover317arranged at an end of the container body316. The opening311is formed on the container cover317. The container body316is in a shape of a cylinder, and may include a container side wall312in a shape of a tube and a container bottom wall313arranged at an end of the container side wall312. The container side wall312and the container bottom wall313jointly define an accommodating cavity310configured to accommodate the aerosol-generating substrate33. An other end of the container side wall312is open to form an opening318, and the container cover317is arranged at the opening318to cover the opening318.

The container body316may be made of high temperature resistant materials such as glass, ceramics, metal, plastic, and the like. In this embodiment, the container body316is made of a ferromagnetic metal material, and may induce a magnetic field in an electromagnetic environment and generate heat, thereby heating the aerosol-generating substrate33.

The container cover317may be made of high temperature resistant materials such as glass, ceramics, metal, plastic, and the like. The container cover317may be embedded in the opening318. In some embodiments, the container cover317may be in interference fit in the opening318by riveting. Because the container cover317is usually not in contact with the aerosol-generating substrate33, to avoid dry burning, the container cover317may be made of a material that does not generate heat or generates less heat in a magnetic field. In this embodiment, the container cover317is made of a non-ferromagnetic metal material.

It may be understood that in other embodiments, when the container body316and the container cover317are made of the same material, for example, when the container body316and the container cover317are made of a non-ferromagnetic material or a ferromagnetic metal material, the container body316and the container cover317may also be integrally formed.

The container cover317may include an annular sheet-shaped end cover3171, an inner side wall3172extending downward from an inner edge of the end cover3171, and an outer side wall3173extending downward from an outer edge of the end cover3171. The outer side wall3173is sealingly engaged with an inner wall surface of the container side wall312, and an inner wall surface of the inner side wall3172defines the opening311. An outer diameter of the inner side wall3172is less than an inner diameter of the outer side wall3173, so that an annular space3174is formed between an outer wall surface of the inner side wall3172and an inner wall surface of the outer side wall3173. The structure is beneficial to reducing materials and costs, and reducing the weight of the aerosol-generating product30.

The sealing member38is at least partially detachably arranged at the opening311. In a first state, the sealing member38may seal the opening311, so that the aerosol-generating substrate33in the container31cannot flow out of the opening311, to ensure that the aerosol-generating substrate33in the container31does not leak when the aerosol-generating product30is placed upright, upside down, or tilted. In a second state, the sealing member38may open the opening311, so that the accommodating cavity310may be in communication with the outside through the opening311, to implement air inlet and air outlet of the aerosol-generating product30. In the second state, the sealing member38may be completely separated from the opening311, or may be partially separated from the opening311while the other part remains connected to the opening311.

Further, in the second state, the sealing member38is at least partially located in the accommodating cavity310. In this way, when the aerosol-generating product30is placed upside down or tilted, causing the aerosol-generating substrate33to remain on the sealing member38, the aerosol-generating substrate33remaining on the sealing member38may be heated in the accommodating cavity310for further use, thereby reducing or avoiding waste of the aerosol-generating substrate33.

In this embodiment, the sealing member38is completely detachably arranged at the opening311, and is configured to be pressed and fall into the accommodating cavity310in the first state. In this way, when heating is required for use, the sealing member38may be pushed into the accommodating cavity310by pressing. In addition, the aerosol-generating substrate33remaining on the sealing member38falls into the accommodating cavity310along with the sealing member38, thereby preventing the aerosol-generating substrate33from being wasted.

In addition, when the opening311is in an open state, because the inner side wall3172of the container cover317extends into the accommodating cavity310and surrounds the outside of the opening311, the inner side wall3172of the container cover317may also block the aerosol-generating substrate33from flowing out of the opening311. Preferably, a bottom surface of the inner side wall3172is spaced apart from a top surface of the aerosol-generating substrate33. In addition, when the aerosol-generating substrate33is in the form of a paste, a liquid level when the aerosol-generating substrate33is heated and liquefied is lower than the bottom surface of the inner side wall3172.

Specifically, the sealing member38may include a sealing side wall381in a shape of a tube and a sealing bottom wall382arranged at an end of the sealing side wall381. The sealing side wall381is in a shape of a hollow tube, which is beneficial to reducing materials and costs, and reducing the weight of the aerosol-generating product30. The sealing side wall381is configured to be sealingly engaged with an inner wall surface of the opening311in the first state, and the sealing bottom wall382may cover the opening311and receive pressure from an external force. There is a specific bonding strength between the outer wall surface of the sealing side wall381and the inner wall surface of the opening311. When the pressing force on the sealing bottom wall382is greater than the binding force, the sealing member38may be away from the opening311and fall into the accommodating cavity310, thereby opening the opening311.

Further, the sealing side wall381may be in a shape of a tapered tube. Specifically, the scaling side wall381has an inner end (or lower end) facing into the accommodating cavity310and an outer end (or upper end) away from the accommodating cavity310. A cross-sectional area of the scaling side wall381gradually decreases from the inner end to the outer end. Correspondingly, a cross-sectional area of the opening311also gradually decreases in a direction from the inner end to the outer end. On one hand, the tapered design may prevent the scaling member38from protruding upward, and on the other hand, the tapered design may facilitate the scaling member38to disengage downward from the opening311when pressed.

The sealing side wall381may be in interference fit with the inner wall surface of the opening311in manners such as clamping, to ensure that the sealing member38does not fall off easily. In some embodiments, the sealing side wall381may include a plurality of clamping arms3811spaced apart in a circumferential direction. The sealing member38is in interference fit with the inner wall surface of the opening311through the plurality of clamping arms3811. In this embodiment, there are three clamping arms3811and the three clamping arms3811are evenly spaced in a circumferential direction of the sealing side wall381, which is beneficial to even force receiving. In another embodiment, a quantity of clamping arms3811may also be two or more.

In this embodiment, the scaling bottom wall382is arranged at a lower end of the sealing side wall381, an upper end of the sealing side wall381is open. A plurality of grooves3810spaced apart in a circumferential direction may be formed on the upper end of the sealing side wall381. Each groove3810may extend downward from the upper end surface of the sealing side wall381but does not penetrate the lower end surface of the sealing side wall381. The plurality of grooves3810divide an upper half of the sealing side wall381into clamping arms3811and body portions3812that are alternately distributed in a circumferential direction. The length of the clamping arm3811in the circumferential direction may be less than the length of the body portion3812in the circumferential direction. The groove3810is provided so that the clamping arm3811may expand outward to be in interference fit with the inner wall surface of the opening311. A lower half of the sealing side wall381is closed in the circumferential direction, and a groove structure is not formed on the lower half of the sealing side wall381, which may prevent the aerosol-generating substrate33from leaking to the outside through the groove3810.

It may be understood that in other embodiments, the sealing member38is not limited to the foregoing structural form. For example, the sealing bottom wall382may also be arranged on the upper end of the sealing side wall381. For another example, the sealing member38may also be of a solid structure. For another example, the sealing side wall381may also protrude outward to form a convex structure, and is in interference with the inner wall surface of the opening311through the convex structure.

The sealing member38may be made of high temperature resistant materials such as metal, plastic, and the like. In this embodiment, the sealing member38is made of a non-ferromagnetic metal material. It may be understood that because the sealing member38may be in contact with the aerosol-generating substrate33after falling into the accommodating cavity310. In other embodiments, the sealing member38may also be made of a ferromagnetic metal material. In this case, the container body316may be made of a ferromagnetic material or a non-ferromagnetic material. In some other embodiments, both the sealing member38and the container body316may be made of non-ferromagnetic materials, and electromagnetic induction heating may be performed by arranging an additional heating element outside or inside the container body316.

The sealing film351at least covers the sealing member38, to ensure cleanliness of the sealing member38, and further prevent the sealing member38from being mistakenly pressed into the container31before use. The sealing film351may be a tearable sealing film and is attached to the upper end surface of the container31. During use, the sealing film351may be first torn off, to expose the sealing member38. In another embodiment, the sealing member38may also be exposed by puncturing the sealing film351.

When assembling the aerosol-generating product30, the aerosol-generating substrate33may be first filled into the container body316, the sealing member38is assembled to the container cover317, then the container cover317with the sealing member38is riveted onto the container body316, and finally the sealing film351is attached. During use, the sealing film351is first torn off, and then the sealing member38is pushed downward into the container body316for normal use. The aerosol-generating substrate33is placed inside the container body316, and becomes liquid after being heated, so that the aerosol-generating substrate33is not prone to flow out of the opening311.

In a process of assembling the suction nozzle10, the host20, and the aerosol-generating product30, the sealing member38may be pushed downward through an air guide tube13in the suction nozzle10, to implement air inlet and air outlet of the aerosol-generating product30. In this case, an outer diameter of the air guide tube13is less than an inner diameter of the opening311, so that a vent gap for air flow is formed between an outer wall surface of the air guide tube13and an inner wall surface of the opening311. One of the vent gap and the air guide channel130may be used for air inlet, and the other of the vent gap and the air guide channel130may be used for air outlet. It may be understood that in other embodiments, the sealing member38may be removed without passing through the air guide tube13. In this case, the air guide tube13does not need to extend into the opening311.

FIG.22andFIG.23show an aerosol-generating product30according to an eleventh embodiment of the present invention. In this embodiment, the container31only includes a container body316, and an upper end of the container body316is open to form an opening311. The container body316may be made of a ferromagnetic material, which may induce a magnetic field and generate heat. A sealing member38may switch from a first state in which the opening311is sealed to a second state in which the opening311is opened through deformation, for example, deformation by being heated.

In a first specific implementation, the sealing member38may be made of a hot melt material, which may be in a shape of a sheet or other shapes. The sealing member38may melt and fall into the container31after being heated.

In a second specific implementation, the sealing member38may be made of a shape memory material, and the sealing member38may change its shape after being heated, thereby disconnecting from the opening311. A shape of the sealing member38in the first state and the second state is not limited, provided that the sealing member38may seal the opening311in the first state and open the opening311in the second state.

In a third specific implementation, the sealing member38may include a sealing body and a hot melt adhesive sealingly connecting a periphery of the sealing body and a periphery of the opening311. A material of the sealing body may be not limited. The hot melt adhesive melts after being heated, causing the sealing body to detach from the opening311and fall into the container31.

FIG.24shows an aerosol-generating product30according to a twelfth embodiment of the present invention. A difference between the twelfth embodiment and the eleventh embodiment is that when a sealing member38in this embodiment is in a second state, a part of the sealing member38is connected to an opening311, and a part of the sealing member38is located in an accommodating cavity310.

A manner in which the sealing member38switches from the first state to the second state may include a deformation manner or a rotation connection manner. For example, the sealing member38may be made of a shape memory material that may change shape and switch to the second state when heated. For another example, the sealing member38is rotatably connected to the opening311, and may rotate to open the opening311in manners such as pressing.

FIG.25shows an aerosol-generating product30according to a thirteenth embodiment of the present invention. The aerosol-generating product30in this embodiment includes a container31, a heating element32, an aerosol-generating substrate33, and a sealing film351. An accommodating cavity310with an opening311at an end is formed in the container31, and the aerosol-generating substrate33is arranged in the accommodating cavity310and may be in communication with the outside via the opening311. Further, the container31includes a blocking portion315extending from at least a part of a periphery of the opening311into the accommodating cavity310and/or facing away from the accommodating cavity310. The blocking portion315may be configured to block the aerosol-generating substrate33from flowing out of the opening311when the aerosol-generating product30is tilted or placed upside down. The heating element32is arranged in the accommodating cavity310and is at least partially in contact with the aerosol-generating substrate33. The heating element32may induce a magnetic field in an electromagnetic environment to generate heat, and transfer the heat to the aerosol-generating substrate33, thereby heating the aerosol-generating substrate33.

In this embodiment, the container31may include a container side wall312in a shape of a tube, a container bottom wall313arranged at a lower end of the container side wall312, a container top wall314arranged at an upper end of the container side wall312, and a blocking portion315extending from the container top wall314toward the inside of the accommodating cavity310. The container top wall314is in a shape of an annular plate, and an inner wall surface of the container top wall314defines an opening311. A center line of the opening311may be parallel to or coincident with a center line of the accommodating cavity310. The blocking portion315extends for a length from a periphery of the opening311into the accommodating cavity310, and an inner wall surface of the blocking portion315defines a communication hole3150that is in communication with the opening311.

In some embodiments, an outer diameter of the aerosol-generating product30may range from 10 mm to 12 mm, and the height may range from 10 mm to 12 mm. A minimum cross-sectional area of the communication hole3150may range from 2 mm2to 3.5 mm2, or a minimum pore size of the communication hole3150may range from 1.5 mm to 2.1 mm. The height H of the blocking portion315may range from 1.5 mm to 3 mm, or the height H of the blocking portion315may range from ⅛ to 3/10 of the height of the aerosol-generating product30. In the range, it may be ensured that the blocking portion315may better block leakage of the aerosol-generating substrate33.

In this embodiment, a container top wall314is in a shape of a concentric ring and its center line coincides with a center line of the accommodating cavity310. The blocking portion315is in a shape of a circular tube and extends vertically downward from an inner wall surface of the container top wall314. The blocking portion315is perpendicular to the container top wall314, and an inner diameter and an outer diameter of the blocking portion315remain unchanged in an axial direction of the blocking portion315. The outer diameter of the blocking portion315is less than the inner diameter of the accommodating cavity310, so that the outer wall surface of the blocking portion315is spaced apart from the inner wall surface of the container side wall312. In addition, in this embodiment, the container31has an even wall thickness structure. In other words, the container side wall312, the container bottom wall313, the container top wall314, and the blocking portion315that form the container31have the same or substantially the same thickness. In some embodiments, the wall thickness of the container31may range from 0.1 mm to 0.5 mm. In another embodiment, the container31may also have a non-even wall thickness structure.

It may be understood that in other embodiments, the blocking portion315may also have other structural shapes. For example, the blocking portion315and the container top wall314may also have an obtuse or an acute angle. For another example, the blocking portion315may also be in other shapes such as a shape of an elliptical tube, a square tube, and the like with a constant cross-sectional area from bottom to top, or may be in a tapered tube shape with a cross-sectional area that gradually increases or decreases from bottom to top. For another example, the blocking portion315may also have a non-closed structure in a shape of a tube. Specifically, one or more axially extending notches may be formed on the blocking portion315.

A bottom surface (namely, a surface of the blocking portion315close to the container bottom wall313) of the blocking portion315is spaced apart from a top surface (namely, a surface of the aerosol-generating substrate33away from the container bottom wall313) of the aerosol-generating substrate33. When the aerosol-generating substrate33is in the form of a paste, a liquid level when the aerosol-generating substrate33is heated and liquefied is lower than the bottom surface of the blocking portion315. Through the foregoing design, no matter whether the aerosol-generating product30is placed upright, tilted, or upside down, the aerosol-generating substrate33is not prone to leak out of the opening311, and the aerosol-generating substrate33is not prone to flow out of the opening311after being heated and liquefied.

For a structure of the heating element32, refer to the foregoing embodiments. Specifically, in this embodiment, the heating element32is in a shape of a cylinder, and the cylindrical heating element32may be further used as a container to accommodate the aerosol-generating substrate33. The aerosol-generating substrate33may be filled into the heating element32through the opening311and an upper end opening of the heating element32. An outer diameter of the heating element32may be less than or equal to an inner diameter of the container side wall312. It may be understood that in other embodiments, the heating element32may also not be arranged in the aerosol-generating product30.

Further, in some embodiments, the aerosol-generating product30may further include a tear-off sealing film351attached to the container31. When heating is required for use, the sealing film351may be first torn off, to expose the opening311, and then the aerosol-generating product30may be assembled on the host20.

The container31may be an integrally formed structure, and may be made of high temperature resistant materials such as glass, ceramics, metal, plastic, and the like. In this embodiment, the container31is a glass tube formed by sintering. When manufacturing the aerosol-generating product30, the heating element32may be first placed inside a body of the container31, and then sintered and formed, so that the heating element32and the container31form an integrated structure through sintering. Then, the aerosol-generating substrate33is filled into the container31through the opening311, and finally the sealing film351is attached. Because the heating element32may be placed in the container31before the container31is sintered and formed, so that a size (such as the diameter, the length, or the width of a cross-sectional outer contour, and the like) of a cross-sectional outer contour of the heating element32may be greater than, less than, or equal to a size (such as the diameter, the length, or the width of the cross-sectional outer contour, and the like) of a cross-sectional outer contour of the opening311. A size of the heating element32may be flexibly designed as required.

It may be understood that in other embodiments, the container31may also have a separate structure. For example, the container top wall314and the container side wall312are separately arranged, and/or the blocking portion315and the container top wall314are separately arranged.

FIG.26shows an aerosol-generating product30according to a fourteenth embodiment of the present invention. Similar to the thirteenth embodiment, the aerosol-generating product30in this embodiment is also in a shape of a cylinder and includes a container31, a heating element32, an aerosol-generating substrate33, and a sealing film351. A structure of the heating element32and a structure of the sealing film351are similar to the structure in the thirteenth embodiment. This is not repeated herein again.

Different from the thirteenth embodiment, a container top wall is not arranged on an upper end of the container31in this embodiment, and the upper end of the container side wall312is open to form an opening311. Specifically, in this embodiment, the container31includes a container side wall312in a shape of a tube, a container bottom wall313arranged at a lower end of the container side wall312, and a blocking portion315extending from an upper end periphery of the container side wall312toward the inside of the accommodating cavity310.

The blocking portion315further has a tendency to shrink toward a center of the opening311, so that a minimum cross-sectional area of the cross-sectional inner contour of the blocking portion315is less than a cross-sectional area of the opening311. In this embodiment, a tube wall of the blocking portion315is arc-shaped, and an outer diameter and an inner diameter of the blocking portion315gradually decrease and shrink in an arc shape from an end close to the opening311to an end away from the opening311.

FIG.27shows an aerosol-generating product30according to a fifteenth embodiment of the present invention. A main difference between the fifteenth embodiment and the fourteenth embodiment is that a blocking portion315in this embodiment includes a shrinking section3151extending from an upper end periphery of a container side wall312into an accommodating cavity310and an extending section3152extending from an end of a shrinking section3151away from an opening311. The shrinking section3151is in a shape of a truncated cone, and an outer diameter and an inner diameter of the shrinking section3151gradually decrease from an end close to the opening311to an end away from the opening311and shrink in a shape of a straight line. The extending section3152is in a shape of a horizontally arranged annular plate, and extends inward in a radial direction for a distance from an end of the shrinking section3151away from the opening311. In another embodiment, the extending section3152may also be obliquely arranged or vertically arranged.

FIG.28shows an aerosol-generating product30according to a sixteenth embodiment of the present invention. A main difference between the sixteenth embodiment and the thirteenth embodiment is that a container31in this embodiment has a split structure, and includes a container body316and a container cover317arranged on an upper end of the container body316.

The container body316is in a shape of a cylinder with an upper end open, and includes a container bottom wall313and a container side wall312in a shape of a tube extending upward from a periphery of the container bottom wall313. The container cover317may include a container top wall314covering an upper end of the container side wall312and a blocking portion315extending downward from an inner periphery of the container top wall314. In addition, the blocking portion315may further include a first blocking section3153and a second blocking section3154extending from a lower end of the first blocking section3153. An angle (including a right angle, an acute angle, and an obtuse angle) is formed between the first blocking section3153and the second blocking section3154. Specifically, in this embodiment, the first blocking section3153is vertically arranged, and an inner diameter and an outer diameter of the first blocking section3153remain unchanged in an axial direction of the first blocking section3153; and the second blocking section3154and a vertical direction are arranged in an angle. An inner diameter and an outer diameter of the second blocking section3154gradually decrease in an axial direction of the second blocking section3154away from a direction of the opening311. Certainly, in another embodiment, the blocking portion315may also have a one-section structure, or may include three or more blocking sections.

The container body316and the container cover317may be made of different materials, or may be made of the same material. In an embodiment, the container body316is made of a ferromagnetic metal material, and may induce a magnetic field in a magnetic field and generate heat, thereby heating the aerosol-generating substrate33accommodated in the container body316. The container cover317is made of a non-ferromagnetic metal material, thereby avoiding dry burning. In this case, a heating element does not need to be additionally arranged in the container31.

In another embodiment, both the container body316and the container cover317are made of non-ferromagnetic materials, and the heating element is arranged in the container31to generate heat.

FIG.29shows an aerosol-generating product30according to a seventeenth embodiment of the present invention. A main difference between the seventeenth embodiment and the fourteenth embodiment is that a blocking portion315in this embodiment extends from a periphery of an opening311in a direction facing away from an accommodating cavity310.

Similar to the fourteenth embodiment, in this embodiment, the blocking portion315also has a tendency to shrink toward a center of the opening311, so that a minimum cross-sectional area of the cross-sectional inner contour of the blocking portion315is less than a cross-sectional area of the opening311. Specifically, in this embodiment, the blocking portion315is in a shape of a tapered tube arranged coaxially with the opening311and the accommodating cavity310, and the cross-sectional area of the blocking portion315gradually decreases in a direction away from the opening311.

FIG.30shows an aerosol-generating product30according to an eighteenth embodiment of the present invention. A difference between the eighteenth embodiment and the seventeenth embodiment is that a blocking portion315in this embodiment extends from a part of an edge of the opening311in a direction facing away from the accommodating cavity310.

Specifically, the blocking portion315may obliquely extend upward from an edge on one side of the opening311to the other side. Further, projection of the blocking portion315on the opening311in a vertical direction (or in an axial direction of the container31) may block at least most of the opening311, and a leakage prevention effect is better.

FIG.31shows an aerosol-generating product30according to a nineteenth embodiment of the present invention. A main difference between the nineteenth embodiment and the foregoing embodiment is that a blocking portion315in this embodiment includes an inner blocking portion3155extending from a part of a periphery of an opening311into an accommodating cavity310and an outer blocking portion3156extending from a part of a periphery of the opening311in a direction facing away from the accommodating cavity310.

The inner blocking portion3155and the outer blocking portion3156may be separately formed by extending from edges on two opposite sides of the opening311. Further, projection of the inner blocking portion3155on the opening311in a vertical direction partially overlaps with projection of the outer blocking portion3156on the opening311in a vertical direction, so that a leakage prevention effect is better.

It can be understood that the foregoing technical features can be used in any combination without limitation.