Aerosol generating product

Abstract

The invention relates to the technical field of aerosol generation, and provides an aerosol generation product which comprises an aerosol generation substrate and a shell, a containing cavity is formed in the shell, an air inlet hole and an air outlet hole are formed in the surface of the shell and communicate with the containing cavity, and the aerosol generation substrate is arranged in the containing cavity. The shell wraps the aerosol generating substrate to protect the aerosol generating substrate, and in the storage and / or transportation process of the aerosol generating substrate, the shell can reduce the probability that the aerosol generating substrate makes contact with outside air, improve the waterproof and moistureproof performance and reduce the moisture loss of the aerosol generating substrate, so that the aerosol generating substrate can be stored and / or transported, and the service life of the aerosol generating substrate is prolonged. The phenomena of mildew, taste decline and the like caused by damp in the processes of transportation, storage, shelf life and the like of the aerosol generating substrate are prevented to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating product. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] The aerosol-generating substrate can form an aerosol by ignition or by heating without burning. Taking the aerosol-generating substrate that is heated without burning as an example, the aerosol-generating substrate is heated by an external heat source so that the aerosol-generating substrate is just heated to a degree sufficient to emit an aerosol, and the aerosol-generating substrate does not burn. When used, the aerosol-generating substrate is heated to release the aerosol.

[0004] In the related art, the aerosol generating matrix is ​​prone to absorb moisture during storage. Summary of the invention

[0005] In view of this, the embodiments of the present application hope to provide an aerosol generating product that can reduce the probability of the aerosol generating matrix absorbing water and getting damp.

[0006] To achieve the above objectives, the present application provides an aerosol generating product, comprising:

[0007] Aerosol-generating matrix;

[0008] The shell has a containing cavity formed therein, an air inlet and an air outlet are formed on the surface of the shell, the air inlet and the air outlet are both connected to the containing cavity, and the aerosol generating matrix is ​​arranged in the containing cavity.

[0009] In some embodiments, the shell includes a first phase change material, and after the first phase change material is heated and vaporized, holes are formed on the surface of the shell, and the holes are at least one of the air inlet holes and the air outlet holes.

[0010] In some embodiments, the shell includes a skeleton material that remains solid when heated.

[0011] In some embodiments, the first phase change material includes at least one of polyethylene glycol, chitosan, gelatin, wax, starch and konjac glucomannan; and the phase change temperature of the first phase change material is 85°C to 185°C.

[0012] In some embodiments, the hydraulic diameter of the holes is 0.05 mm to 6 mm.

[0013] In some embodiments, a pre-opening is formed on the surface of the shell, and the pre-opening is at least one of the air inlet and the air outlet.

[0014] In some embodiments, the hydraulic diameter of the pre-opening is 0.01 mm to 8 mm.

[0015] In some embodiments, the surface of the shell has a first end face and a second end face opposite to each other in the longitudinal direction, the first end face is formed with the air inlet hole, the second end face is formed with the air outlet hole, the air inlet hole and the air outlet hole are respectively located on two opposite sides of the aerosol generating substrate in the longitudinal direction, and the circumferential surface of the aerosol generating substrate abuts against part of the circumferential surface of the accommodating cavity.

[0016] In some embodiments, the first end surface is spaced from a surface of the aerosol generating substrate longitudinally facing the first end surface to form a first spacing space, and the second end surface is spaced from a surface of the aerosol generating substrate longitudinally facing the second end surface to form a second spacing space.

[0017] In some embodiments, the volume of the first compartment is greater than the volume of the second compartment.

[0018] In some embodiments, at least one of the first end surface and the second end surface is a rotational curved surface or a plane.

[0019] In some embodiments, the rotational curved surface is a hemispherical surface or a conical surface.

[0020] In some embodiments, the first end surface is a concave conical surface that is concave toward the aerosol generating substrate, and the second end surface is a convex conical surface that is convex toward the aerosol generating substrate.

[0021] In some embodiments, the aerosol generating substrate is an integral structure and has air passages formed through two end surfaces thereof in the longitudinal direction.

[0022] In some embodiments, the aerosol-generating substrate includes a substrate and a second phase-change material. The substrate generates an aerosol when heated, and the second phase-change material vaporizes when heated to form voids in the substrate.

[0023] In some embodiments, the substrate includes plant materials, and the plant materials are in the form of sheets, strips or powders; the substrate and the second phase change material are mixed and then formed by extrusion, stamping or casting.

[0024] In some embodiments, the hydraulic diameter of the cross-sectional shape of the aerosol-generating substrate is 4 mm to 10 mm; and the dimension of the aerosol-generating substrate along the longitudinal direction is 3 mm to 20 mm.

[0025] In some embodiments, the shell includes a first shell and a second shell, the first shell is a hollow structure with a first opening, the second shell is a hollow structure with a second opening, the surrounding portion of the first opening and the surrounding portion of the second opening are connected to jointly define the accommodating cavity, the first shell has the air inlet hole, and the second shell has the air outlet hole.

[0026] In some embodiments, the peripheral portion of the first opening and the peripheral portion of the second opening are in abutment with each other at opposite end surfaces; or,

[0027] The peripheral portion of the first opening and the peripheral portion of the second opening are partially nested.

[0028] In some embodiments, the shell includes a connecting ring, which is a hollow structure with openings at both ends along the longitudinal direction. The first shell and the second shell are respectively arranged at the two ends of the connecting ring along the longitudinal direction, and the surrounding parts of the first opening and the surrounding parts of the second opening are respectively connected to the two ends of the connecting ring along the longitudinal direction.

[0029] In some embodiments, the aerosol generating article comprises a functional section, and the functional section is arranged at one end of the shell in the longitudinal direction.

[0030] The aerosol generating matrix provided in the embodiment of the present application has a shell wrapped around the outside of the aerosol generating matrix, which plays a role in protecting the aerosol generating matrix. During the storage and / or transportation of the aerosol generating matrix, the shell can reduce the probability of the aerosol generating matrix contacting with the outside air, improve the waterproof and moisture-proof performance, reduce the water loss of the aerosol generating matrix, and to a certain extent prevent the aerosol generating matrix from being moldy and deteriorating in taste due to moisture during transportation, storage, shelf life, etc. During the use of the aerosol generating matrix, the aerosol generating matrix releases aerosols when heated. Under the action of the suction negative pressure, the outside air enters the containing cavity through the air inlet and carries the aerosol out of the air outlet. In this way, the shell can also reduce the probability of the aerosol dissipating to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of a ninth aerosol generating product in an embodiment of the present application;

[0032] Figure 2 This is a schematic structural diagram of a first aerosol generating product in one embodiment of the present application;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure of the first aerosol generating article from another perspective;

[0034] Figure 4 for Figure 3 A cross-sectional view along the AA direction, wherein the hollow arrows schematically show the flow direction of the airflow;

[0035] Figure 5 Schematic diagram of the structure of a second aerosol generating product in one embodiment of the present application;

[0036] Figure 6 for Figure 5 A cross-sectional view of the second aerosol-generating article shown, wherein the hollow arrows schematically show the flow direction of the airflow;

[0037] Figure 7 is a cross-sectional view of a third aerosol generating article according to an embodiment of the present application;

[0038] Figure 8 is a cross-sectional view of a fourth aerosol generating article according to an embodiment of the present application;

[0039] Fig. 9 is a cross-sectional view of a fifth aerosol generating article in an embodiment of the present application;

[0040] Fig.10 is a cross-sectional view of a sixth aerosol generating article in an embodiment of the present application;

[0041] Fig.11 is a cross-sectional view of a seventh aerosol generating article in an embodiment of the present application;

[0042] Fig.12 It is a cross-sectional view of an eighth aerosol-generating article in an embodiment of the present application.

[0043] Description of Reference Numerals

[0044] Aerosol generating product 100; aerosol generating matrix 1; air channel 1a; shell 2; accommodating chamber 2a; air inlet 2b; air outlet 2c; hole 2'; first end surface 201; first spacing space 201a; second end surface 202; second spacing space 202a; first shell 21; first opening 21a; second shell 22; second opening 22a; connecting ring 23; heating element 3; functional section 200; wrapping layer 300. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0046] In the present application, a plurality includes two and more than two. The unit "mm" is millimeter. The unit "μm" is micrometer. The unit "℃" is Celsius.

[0047] See also Figures 2 to 4 The present application provides an aerosol generating product 100, which includes an aerosol generating substrate 1 and a shell 2. The shell 2 is formed with a containing cavity 2a. The surface of the shell 2 is formed with an air inlet 2b and an air outlet 2c. Both the air inlet 2b and the air outlet 2c are connected to the containing cavity 2a. The aerosol generating substrate 1 is arranged in the containing cavity 2a.

[0048] The aerosol generating substrate 1 may undergo a physical state change and / or chemical reaction to generate an aerosol when heated. Exemplarily, the aerosol generating substrate 1 may be suitable for generating aerosols by heating without burning. That is, the aerosol generating substrate 1 is heated below the ignition point to generate an aerosol. The aerosol generating substrate 1 does not burn during the process of generating aerosols. In some application scenarios, the aerosol generating substrate 1 may be suitable for generating aerosols by ignition. The aerosol generating substrate 1 of the present application is more suitable for generating aerosols by heating without burning.

[0049] The aerosol generating matrix 1 provided in the embodiment of the present application, the shell 2 is wrapped around the outside of the aerosol generating matrix 1, and plays a role in protecting the aerosol generating matrix 1. During the storage and / or transportation of the aerosol generating matrix 1, the shell 2 can reduce the probability of the aerosol generating matrix 1 contacting with the outside air, improve the waterproof and moisture-proof performance, reduce the water loss of the aerosol generating matrix 1, and to a certain extent prevent the aerosol generating matrix 1 from being moldy and deteriorating in taste due to moisture during transportation, storage, shelf life, etc. During the use of the aerosol generating matrix 1, the aerosol generating matrix 1 releases aerosols when heated, and under the action of the suction negative pressure, the outside air enters the containing cavity 2a through the air inlet 2b and carries the aerosols out from the air outlet 2c. In this way, the shell 2 can also reduce the probability of the aerosol dissipating to the outside.

[0050] See also Figure 1 and Figure 2 The aerosol generating article 100 comprises a functional section 200 , which is arranged at one end of the shell 2 along the longitudinal direction.

[0051] The functional section 200 provides at least one of the functions of aerosol gathering, dilution, cooling, interception and compensation.

[0052] In some embodiments, the functional section 200 includes a filter section, and the filter section is used to filter aerosol.

[0053] For example, the filter section can block substances with target particle sizes and can also adjust the inhalation resistance. For example, the filter section can filter large-size particles similar to powdery substances. The aerosol filtered by the filter section has a higher consistency in particle size and a more delicate taste.

[0054] The aerosol generating article 100 is used for the user to inhale the aerosol generated by the aerosol generating substrate 1. Exemplarily, one end of the aerosol generating article 100 in the longitudinal direction faces the user, and the user inhales to generate negative suction pressure, and the aerosol generated by the aerosol generating substrate 1 flows through the functional section 200 under the action of the negative suction pressure and is then delivered to the user. That is, the functional section 200 is downstream of the aerosol generating substrate 1 in the longitudinal direction.

[0055] The aerosol-generating article 100 may be used in conjunction with an aerosol-generating device having a heating element.

[0056] The aerosol generating device provided in the embodiment of the present application is used for the aerosol generating product in any one of the embodiments of the present application. The aerosol generating device comprises a heating element, which is used to heat the aerosol generating substrate 1 to generate an aerosol.

[0057] The heating methods of the heating element include, but are not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating or laser heating. The heat generated by the heating element can be transferred to the aerosol generating substrate 1 in the form of thermal convection, thermal conduction or thermal radiation. The transfer of heat in the form of thermal convection means that the heating element is not in contact with the aerosol generating substrate 1, the heating element first heats the air, and then the hot air bakes and heats the aerosol generating substrate 1. Thermal conduction means that the heating element is in contact with the aerosol generating substrate 1 and conducts heat to the aerosol generating substrate 1. Exemplarily, resistance and electromagnetic heating mainly transfer heat to the aerosol generating substrate 1 in the form of thermal conduction or thermal convection. Infrared heating, microwave heating or laser heating mainly transfer heat to the aerosol generating substrate 1 in the form of thermal radiation. The heating element can heat the aerosol generating substrate 1 in one or more of the three forms of thermal conduction, thermal convection and thermal radiation.

[0058] For some examples, see Figure 1 and Figure 2 The aerosol generating article 100 includes a wrapping layer 300, which wraps around the outer periphery of the shell 2 and the outer periphery of the functional segment 200. Exemplarily, the wrapping layer 300 wraps around the outer peripheral surface of the shell 2 and the outer peripheral surface of the filter segment. The wrapping layer 300 is used to connect the aerosol generating article 100 and the functional segment 200 into a whole.

[0059] For example, the wrapping layer 300 may be one layer, and may be two or more layers depending on the design requirements and manufacturing process of the aerosol generating product.

[0060] For example, see Figure 6 The aerosol generating substrate 1 may be roughly cylindrical in appearance, wherein the cylindrical shape may be a cylindrical shape (i.e., a circular cross-sectional shape), a prismatic shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder (i.e., an elliptical cross-sectional shape), and the like.

[0061] In the embodiment of the present application, the longitudinal direction is the direction in which the aerosol generating article is inserted into and removed from the aerosol generating device. The length of the aerosol generating substrate 1 along the longitudinal direction may be longer, shorter, or the same as the length in other directions.

[0062] For example, when the aerosol generating substrate 1 is cylindrical in appearance, the longitudinal direction is consistent with the axial direction of the cylindrical aerosol generating substrate 1. It should be noted that even if the length of the aerosol generating substrate 1 along the axial direction is less than its diameter, the longitudinal direction of the aerosol generating substrate 1 is still the axial direction. For another example, when the aerosol generating substrate 1 is rectangular in appearance, the longitudinal direction is still the direction in which the aerosol generating product is inserted into and removed from the aerosol generating device, and the longitudinal direction of the aerosol generating substrate 1 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0063] It should be noted that the horizontal direction is perpendicular to the vertical direction. Taking the aerosol generating substrate 1 as an example with a cylindrical appearance, the horizontal direction is the radial direction. The cross-sectional shape is the cross-sectional shape of the aerosol generating substrate 1 with the plane perpendicular to the vertical direction as the cross-section.

[0064] In one embodiment, please refer to Figure 2 The shell 2 includes a first phase change material, which is heated and vaporized to form holes 2' on the surface of the shell 2. The holes 2' are at least one of the air inlet 2b and the air outlet 2c. In other words, the holes 2' can be used as the air inlet 2b, and the holes 2' can also be used as the air outlet 2c.

[0065] Exemplarily, the first phase change material changes from a solid state to a gaseous state when heated. That is, the first phase change material changes from a solid state to a gaseous state when heated.

[0066] It should be understood that the first phase change material can undergo a solid-liquid-gas phase change or a solid-gas phase change.

[0067] In this embodiment, the first phase change material is heated and vaporized, so that the location of the first phase change material becomes a hole 2', that is, the hole 2' is formed during the use of the aerosol generating product 100. In this way, before the aerosol generating product 100 is heated, the location of the first phase change material is sealed, and there are no or only a small number of air inlet holes 2b and / or air outlet holes 2c on the shell 2. After the aerosol generating product 100 is heated, the first phase change material is heated and vaporized, and the shell 2 forms a hole 2', increasing the number of air inlet holes 2b and / or air outlet holes 2c to ensure the suction effect.

[0068] In one embodiment, the housing 2 includes a skeleton material that maintains a solid state when heated. The skeleton material refers to a material that does not undergo a phase change when heated within a set temperature. The skeleton material can maintain the shape of the housing 2 after the first phase change material is heated and vaporized.

[0069] It should be understood that the aerosol generating article 100 is used to be heated to generate aerosol, therefore, the heating temperature of the shell 2 is the temperature at which the aerosol generating substrate 1 generates aerosol, that is, the set temperature of the skeleton material is not higher than the temperature at which the aerosol generating substrate 1 generates aerosol.

[0070] In one embodiment, the skeleton material includes but is not limited to sodium alginate or polylactic acid, etc.

[0071] In one embodiment, the first phase change material includes at least one of polyethylene glycol, chitosan, gelatin, wax, starch and konjac glucomannan, and the phase change temperature of the first phase change material is 85°C to 185°C. Exemplarily, the phase change temperature of the first phase change material is 85°C, 100°C, 110°C, 120°C, 150°C or 185°C, etc. In this way, during the heating of the aerosol generating product 100, the first phase change material can be vaporized before the aerosol generating matrix 1 generates an aerosol, and the heat from the heating element can be transferred to various positions of the shell 2, so that the first phase change material located at different positions of the shell 2 can be vaporized synchronously within a short time. These materials are stable in properties when not heated (for example, at room temperature), can maintain a solid state when not heated, and vaporize to form holes 2' after being heated to a set temperature, such as 85°C to 185°C, and no toxic byproducts are generated during heating and use. The first phase change material can replenish the amount of aerosol after vaporization.

[0072] In some embodiments, the first phase change material may further include flavors and fragrances. The flavors and fragrances are used to provide characteristic aromas. In this way, the first phase change material can increase the aroma of the aerosol, making the taste richer.

[0073] The number of the hole 2' may be one or more. The multiple holes 2' can make the aerosol in the containing cavity 2a flow more evenly and faster.

[0074] In one embodiment, the hydraulic diameter of the hole 2' is 0.05 mm to 6 mm. For example, the hydraulic diameter of the hole 2' is 0.05 mm, 0.1 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 6 mm, etc. The hydraulic diameter of the hole 2' within this range is convenient for airflow to enter and exit the accommodating cavity 2a, while taking into account the structural strength of the shell 2 and maintaining the shape of the shell 2.

[0075] In one embodiment, pre-openings are formed on the surface of the shell 2, and the pre-openings are at least one of the air inlet holes 2b and the air outlet holes 2c. That is, the pre-openings can be the air inlet holes 2b or the air outlet holes 2c. The pre-openings are holes formed during the manufacturing process of the shell 2. That is, the shell 2 already has pre-openings before the aerosol generating product 100 is heated. For example, the pre-openings can be holes formed by mechanical equipment such as drilling, cutting, stamping or mold forming. Compared with the first phase change material being heated and vaporized to form holes 2', the pre-openings can be formed by mechanical processing, and the mechanical processing technology is more mature, and the hole positions are easier to control.

[0076] In one embodiment, the hydraulic diameter of the pre-opening is 0.01 mm to 8 mm. Exemplarily, the hydraulic diameter of the pre-opening is 0.01 mm, 0.1 mm, 1 mm, 2 mm, 3 mm, 4 mm, 6 mm or 8 mm, etc. The hydraulic diameter of the pre-opening is within this range, which is convenient for manufacturing and forming the shell 2 to avoid damage to the shell 2 by machining tools, and can also take into account the structural strength of the shell 2 and maintain the shape of the shell 2.

[0077] In some embodiments, the shell 2 may only have holes 2' formed after the first phase change material is vaporized, the shell 2 has no pre-openings, and the shell 2 is a dense structure before heating, that is, the shell 2 is a sealed structure before heating. In this way, during the transportation and storage of the aerosol generating product 100, the shell 2 can seal and preserve the aerosol generating matrix 1, isolate the aerosol generating matrix 1 from the outside world, maintain the stability of the moisture and aroma components in the aerosol generating matrix 1, and prevent the aerosol generating matrix 1 from absorbing moisture or losing moisture during storage, causing a decrease in user experience. During use, the first phase change material is vaporized after heating, and the aerosol generating matrix 1 is exposed to the heating cavity of the heating element, and an aerosol is generated for the user to inhale and use. In this way, the shell 2 can increase the storage time of the aerosol generating matrix 1 and the consistency of the aroma components and effective ingredients, and can improve the user experience.

[0078] In some embodiments, the housing 2 may only have pre-openings, without holes 2' formed after the first phase change material is vaporized, so that the manufacturing cost is low.

[0079] In some embodiments, the housing 2 has both holes 2' formed after the first phase change material is vaporized and pre-opened holes. In this way, the airflow distribution entering the aerosol generating matrix 1 is adjusted by different hole-forming methods, thereby improving the user experience of the aerosol generating matrix 1 in different usage scenarios.

[0080] In one embodiment, please refer to Figures 2 to 12The surface of the shell 2 has a first end face 201 and a second end face 202 which are opposite to each other in the longitudinal direction. The first end face 201 is formed with an air inlet 2b, and the second end face 202 is formed with an air outlet 2c. The air inlet 2b and the air outlet 2c are respectively located on two opposite sides of the aerosol generating substrate 1 in the longitudinal direction, and the circumferential surface of the aerosol generating substrate 1 partially abuts against the circumferential surface of the accommodating chamber 2a. The friction between the circumferential surface of the aerosol generating substrate 1 and the circumferential surface of the accommodating chamber 2a is used to limit the movement of the aerosol generating substrate 1 in the shell 2, so that the aerosol generating substrate 1 can be stably placed in the accommodating chamber 2a. During the suction process, the airflow from the air inlet 2b of the first end face 201 can flow through the aerosol generating substrate 1 completely, and then flow out through the air outlet 2c, so as to improve the extraction rate of the aerosol.

[0081] It should be noted that the circumferential direction refers to a direction surrounding a straight line extending in the longitudinal direction.

[0082] In one embodiment, please refer to Figures 4 to 12 The first end face 201 is spaced from the surface of the aerosol generating substrate 1 facing the first end face 201 in the longitudinal direction to form a first spacing space 201a. The second end face 202 is spaced from the surface of the aerosol generating substrate 1 facing the second end face 202 in the longitudinal direction to form a second spacing space 202a. During the user's puffing process, in the puffing interval, the outside air can enter the first spacing space 201a, and the first spacing space 201a plays the role of temporarily storing the outside airflow. The aerosol generated by the aerosol generating substrate 1 can be temporarily stored in the second spacing space 202a, and a suction negative pressure is generated during the puffing. Under the action of the suction negative pressure, the outside airflow carries the aerosol into the user's oral cavity. In this way, during the puffing process, the shell 2 reciprocatingly temporarily stores and discharges the aerosol, so that the amount of aerosol in each puff is relatively consistent, thereby improving the consistency of aerosol release.

[0083] In one embodiment, please refer to Figure 4 and Figure 8 , the volume of the first compartment 201a is greater than the volume of the second compartment 202a. During inhalation, a negative pressure area is generated in the air inlet end, i.e., the first compartment 201a. When inhalation is finished, the negative pressure area generates aerosol reflux. Since the volume of the first compartment 201a is greater than the volume of the second compartment 202a, the aerosol refluxes into the first compartment 201a after inhalation is finished, thereby reducing the aerosol condensation phenomenon caused by the aerosol reflux outside the housing 2.

[0084] In one embodiment, please refer to Figures 2 to 12 At least one of the first end surface 201 and the second end surface 202 is a rotational curved surface or a plane. With such a design, the airflow velocity in the area around the aerosol generating substrate 1 is regulated by the shapes of the first end surface 201 and the second end surface 202, thereby achieving different inhalation experiences.

[0085] A rotational surface is a surface generated by a plane curve rotating around a fixed straight line on the plane where it is located. The plane curve is the generatrix and the fixed straight line is the rotation axis.

[0086] In one embodiment, please refer to Figure 2 and Fig. 9 , the rotational surface is a hemispherical surface or a conical surface. For example, in some embodiments, please refer to Figure 2 , at least one of the first end surface 201 and the second end surface 202 is a hemispherical surface. The aerosol flow rate of the aerosol generating substrate 1 flowing through or out of the aerosol generating substrate 1 can be adjusted to make the flow rate more uniform, thereby improving the consistency of user use. In some embodiments, please refer to Fig. 9 At least one of the first end surface 201 and the second end surface 202 is a conical surface.

[0087] In one embodiment, please refer to Figure 2 and Figure 6 The first end surface 201 and the second end surface 202 may have the same shape. For example, the first end surface 201 and the second end surface 202 may both be planes. For another example, the first end surface 201 and the second end surface 202 may both be hemispherical surfaces.

[0088] In some other embodiments, the first end surface 201 and the second end surface 202 may have different shapes. Figure 7 One of the first end surface 201 and the second end surface 202 is a plane, and the other of the first end surface 201 and the second end surface 202 is a hemispherical surface.

[0089] In one embodiment, please refer to Fig. 9 The first end surface 201 is a concave concave surface that is concave toward the direction close to the aerosol generating substrate 1, and the second end surface 202 is a convex conical surface that is convex toward the direction away from the aerosol generating substrate 1. In this way, the suction resistance of the aerosol generating substrate 1 near the central area can be increased, thereby increasing the flow rate of the peripheral area of ​​the central area of ​​the aerosol generating substrate 1, so that the utilization rate of the aerosol generating substrate 1 is higher.

[0090] In one embodiment, please refer to Figures 2 to 12 The housing 2 includes a first shell 21 and a second shell 22. The first shell 21 is a hollow structure with a first opening 21a, and the second shell 22 is a hollow structure with a second opening 22a. The surrounding area of ​​the first opening 21a and the surrounding area of ​​the second opening 22a are connected to jointly define a receiving chamber 2a. The first shell 21 has an air inlet 2b, and the second shell 22 has an air outlet 2c. The first shell 21 and the second shell 22 can be manufactured separately and then assembled to form the housing 2. In this way, the first shell 21 and the second shell 22 have a simple structure, simple assembly, and are convenient.

[0091] In one embodiment, please refer to Figures 2 to 12 The first end surface 201 is a surface of the first shell 21 that is away from the second shell 22 in the longitudinal direction. The second end surface 202 is a surface of the second shell 22 that is away from the first shell 21 in the longitudinal direction.

[0092] In one embodiment, please refer to Fig. 9 and Fig.11 , the peripheral part of the first opening 21a and the peripheral part of the second opening 22a are in contact with each other at opposite end faces. Exemplarily, the peripheral part of the first opening 21a is longitudinally facing the end face of the second opening 22a, and the peripheral part of the second opening 22a is longitudinally facing the end face of the first opening 21a. In other words, the peripheral part of the first opening 21a and the peripheral part of the second opening 22a do not overlap in the transverse direction. If the heating element surrounds the periphery of the shell 2, the heat of the heating element is transferred from the periphery to the center in the transverse direction, and the first shell 21 and the second shell 22 adopt the connection method of this embodiment, which is convenient for uniformly heating the aerosol generating matrix 1, thereby improving the user's smoking experience.

[0093] In one embodiment, please refer to Figures 2 to 8 ,as well as Fig.12 , the surrounding part of the first opening 21a and the surrounding part of the second opening 22a are partially connected. That is, the surrounding part of the first opening 21a and the surrounding part of the second opening 22a overlap in the transverse direction. For example, the surrounding part of the first opening 21a can be inserted into the second opening 22a; or, the surrounding part of the second opening 22a can be inserted into the first opening 21a. In this way, the connection between the first shell 21 and the second shell 22 has good sealing performance.

[0094] In one embodiment, please refer to Fig.10 The housing 2 includes a connecting ring 23, which is a hollow structure with both ends of the connecting ring 23 being open in the longitudinal direction. The first housing 21 and the second housing 22 are respectively arranged at the two ends of the connecting ring 23 in the longitudinal direction. The surrounding parts of the first opening 21a and the surrounding parts of the second opening 22a are respectively connected with the two ends of the connecting ring 23 in the longitudinal direction. That is, the surrounding parts of the first opening 21a overlap with one end of the connecting ring 23 in the longitudinal direction in the transverse direction, and the surrounding parts of the second opening 22a overlap with the other end of the connecting ring 23 in the longitudinal direction in the transverse direction. For example, the surrounding parts of the first opening 21a may be inserted into the opening of one end of the connecting ring 23 in the longitudinal direction; or, the surrounding parts of the opening of one end of the connecting ring 23 in the longitudinal direction may be inserted into the first opening 21a. For example, the surrounding parts of the second opening 22a may be inserted into the opening of the other end of the connecting ring 23 in the longitudinal direction; or, the surrounding parts of the opening of the other end of the connecting ring 23 in the longitudinal direction may be inserted into the second opening 22a.

[0095] In one embodiment, both the first shell 21 and the second shell 22 may include the first phase change material, and the connecting ring 23 may not include the first phase change material. In other words, the connecting ring 23 remains closed before and after heating.

[0096] In one embodiment, please refer to Figure 4 The aerosol generating matrix 1 is an integral structure and is formed with airways 1a passing through its two end faces in the longitudinal direction. The aerosol can be delivered more smoothly and orderly through the airway 1a, the aerosol flow resistance is smaller, the controllability is good, the aerosol extraction efficiency is effectively improved, and the inhalation experience is improved.

[0097] In one embodiment, the number of the air passage 1a may be one or more.

[0098] The arrangement of the airways 1a is not limited. For example, the multiple airways 1a can be arranged along a straight line, along a curve, in a two-dimensional matrix, in a plurality of nested rings, in concentric circles, and the like.

[0099] In one embodiment, please refer to Figure 8 The air channel 1a may be formed inside the aerosol-generating substrate 1. The air channel 1a may be formed on the circumferential surface of the aerosol-generating substrate 1.

[0100] In one embodiment, please refer to Figures 4 to 12 The air channel 1a may be a straight air channel 1a extending in a straight line in the longitudinal direction. The straight air channel 1a is easy to form and can reduce the manufacturing difficulty. The flow resistance of the airflow in the straight air channel 1a is relatively small.

[0101] In some embodiments, the air channel 1a is a curved air channel 1a, and at least part of the hole section of the curved air channel 1a is a curved shape with a non-zero curvature. The curved air channel 1a can greatly increase the flow path of the airflow without significantly increasing the length of the aerosol generating substrate 1, and can extend the contact time between the airflow and the hole wall of the curved air channel 1a, thereby improving the aerosol extraction rate.

[0102] In one embodiment, the curved airway 1a is in the shape of a spiral line. That is, the three-dimensional shape of the curved airway 1a is in the shape of a spatial spiral line. The line connecting any point of the spiral curved airway 1a and the starting point has an inclination angle relative to its axis. The spiral curved airway 1a can greatly extend the flow path of the airflow, precipitate the aerosol from the aerosol generating matrix 1 into the curved airway 1a, increase the flow speed of the aerosol in the aerosol generating matrix 1, thereby increasing the impact force of the airflow, so that the aerosol can be evenly mixed, improve the uniformity of the aerosol, and enhance the user's suction experience.

[0103] In one embodiment, the flow cross-section area of ​​the air inlet 2b is 0.01 mm 2 ~30mm2 (including 0.01mm 2 and 30mm 2 ). Preferably, the flow cross-section area of ​​the air inlet 2b is 0.1 mm 2 ~8mm 2 (including 0.1mm 2 and 8mm 2 The cross-sectional area of ​​the outlet hole 2c is 0.01 mm 2 ~30mm 2 (including 0.01mm 2 and 30mm 2 ). Preferably, the flow cross-section area of ​​the air outlet 2c is 0.1 mm 2 ~8mm 2 (including 0.1mm 2 and 8mm 2 The flow cross-section area of ​​the airway 1a is 0.003 mm2 to 28 mm 2 (including 0.03mm 2 and 28mm 2 ), preferably, the flow cross-sectional area of ​​the airway 1a is 0.08mm 2 ~7mm 2 (including 0.08mm 2 and 7mm 2 ).

[0104] In one embodiment, the aerosol generating matrix 1 includes a substrate and a second phase change material, the substrate generates an aerosol when heated, and the second phase change material vaporizes when heated to form a gap in the substrate. The aerosol generating matrix 1 is solid. Specifically, the second phase change material vaporizes when heated to form a gap where the second phase change material is located.

[0105] Exemplarily, the second phase change material changes from a solid state to a gaseous state when heated. That is, the second phase change material changes from a solid state to a gaseous state when heated.

[0106] It should be understood that the second phase change material can undergo a solid-liquid-gas phase change or a solid-gas phase change.

[0107] In this embodiment, the second phase change material is vaporized by heat, thereby releasing the space occupied by it in the solid state in the aerosol generating matrix 1 to form a void, which can increase the porosity of the aerosol generating matrix 1. On the one hand, in the process of heating the aerosol generating matrix 1, the aerosol generating matrix 1 generates an aerosol and the second phase change material is vaporized by heat to form a void, and the aerosol generated by the aerosol generating matrix 1 can enter the void, which can promote the rapid extraction of the effective ingredients in the aerosol generating matrix 1; on the other hand, the vaporization process of the second phase change material is an endothermic process, which can not only improve the temperature uniformity of the aerosol generating matrix 1 through the thermal conductivity of the second phase change material, but also reduce the temperature of the generated aerosol. On the other hand, the smoke formed by the vaporization of the second phase change material can increase the amount of aerosol, thereby improving the smoking experience.

[0108] In one embodiment, the voids include micropores. Micropores refer to pores with a hydraulic diameter of no more than 100 μm. Micropores can increase the surface area of ​​the aerosol generating matrix 1, thereby improving the extraction efficiency of the active ingredients of the aerosol generating matrix 1.

[0109] It is understandable that the micropores are determined by the size of the second phase change material. For example, the second phase change material is in granular form. Since the second phase change material forms micropores after gasification, the size of the granular second phase change material is the size of the micropores.

[0110] It should be noted that the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the circumference; or the ratio of four times the cross-sectional area of ​​the aerosol generating matrix to the circumference. The flow cross section refers to the cross section taken by the streamline cluster perpendicular to the fluid. For example, if the flow cross section is a regular quadrilateral, the hydraulic diameter is the ratio of four times the flow cross-sectional area of ​​the regular quadrilateral to the circumference of the regular quadrilateral. For another example, if the flow cross section is a circle, the hydraulic diameter is the diameter of the circular flow cross section.

[0111] It is understandable that the flow cross section of the micropore may be in a regular shape such as a circle, an ellipse, a polygon (such as a square, a prism or a pentagon, etc.), etc. The flow cross section of the micropore may also be in an irregular shape.

[0112] In some embodiments, there are multiple micropores, and the multiple micropores are connected to form a first microchannel. The aerosol can flow through the first microchannel.

[0113] In some embodiments, the voids may include macroscopic pores, which may be air channels 1a, so that the aerosol generated by the substrate may enter the macroscopic pores, where it may be gathered and guided.

[0114] Macropores are pores with a hydraulic diameter greater than 100 μm.

[0115] It should be understood that the air channel 1a can be formed by gasification of the second phase change material, and the air channel 1a can also be prefabricated. Prefabricated molding refers to the simultaneous molding of the air channel 1a during the manufacturing process of the aerosol generating matrix 1. Exemplarily, the air channel 1a can be formed by mechanical processing methods such as extrusion, stamping, and drilling. The second phase change material gasification molding is the molding of the aerosol generating product 100 during heating and use.

[0116] In some embodiments, the substrate is a particle combination, and there are micro gaps between the particles of the particle combination, and multiple micro gaps are connected to form a second micro channel. For example, the flow cross-sectional area and length of the second micro channel are naturally formed by the material components, and the material components expand to a certain extent to form the second micro channel. Aerosol can flow through the second micro channel. In this way, the micro gap can not only increase the surface area of ​​the aerosol generating matrix 1, facilitate heat transfer, improve heating efficiency, but also facilitate aerosol circulation.

[0117] It should be noted that the micro-gaps and micro-pores described in the present application are different from the airway 1a, and the first microchannel and the second microchannel are both disordered. In other words, the first microchannel and the second microchannel are both randomly generated. Disorder means that it is difficult to generate in an orderly manner according to the design. The airway 1a is ordered, which means that it is mainly formed by design and processing and is predictable. The airway 1a described in the present application is a hole in the macroscopic sense, and the micro-gaps and micro-pores are both holes in the microscopic sense. The cross-sectional area and length of the airway 1a are much larger than those of the micro-gaps and micro-pores. The airway 1a is mainly processed by design. For example, the airway 1a is processed by a mold such as a die. Therefore, the flow cross-sectional area and length and other dimensions of the airway 1a can be changed according to the design requirements, and the size of the microgap is determined by the gap between particles. For example, the material is granular, and the aerosol generating matrix 1 formed by extrusion of the material has a microgap. The flow cross-sectional area and length and other dimensions of the microgap are naturally formed by the extrusion process and the material components. The microgap can be formed by a certain expansion after the material feeding barrel flows out of the die.

[0118] In some embodiments, the aerosol generating substrate 1 has micropores, microgaps and airways 1a, and the first microchannel and the second microchannel are both connected to the airway 1a. The aerosol generating substrate 1 releases aerosols when heated, and the aerosols are collected in the airway 1a through the first microchannel and the second microchannel. The aerosols released by the aerosol generating substrate 1 exposed to the airway 1a (i.e., the material located on the inner surface of the airway 1a) can be directly released into the airway 1a. The aerosols between adjacent airways 1a can also circulate with each other through the first microchannel and the second microchannel, and are transported to the downstream end, i.e., the end where the functional section 200 is located, under the action of the suction negative pressure.

[0119] In one embodiment, the aerosol generating substrate 1 is an integral structure.

[0120] For example, the aerosol generating matrix 1 can be made into an integral structure by injection molding, die casting or extrusion, etc. In this way, the aerosol generating matrix 1 is an integral medium during use, such as when heated or after heating, and is not prone to disintegration and falling.

[0121] Extrusion molding refers to a processing method in which the material is pushed toward the discharge port by the extrusion screw through the interaction between the barrel and the extrusion screw of the extrusion device, and is formed into an aerosol-generating matrix 1 with a preset cross-sectional shape through an extrusion die such as a die.

[0122] The second phase change material includes at least one of polyethylene glycol, chitosan, gelatin, wax, starch and konjac glucomannan.

[0123] In some embodiments, the composition of the second phase change material is the same as that of the first phase change material. In other embodiments, the composition of the second phase change material is different from that of the first phase change material.

[0124] In some embodiments, the second phase change material may further include flavors and fragrances. The flavors and fragrances are used to provide characteristic aromas. In this way, the second phase change material can increase the aroma of the aerosol, making the taste richer.

[0125] In one embodiment, the substrate includes plant materials, and the plant materials are in the form of sheets, strips or powders; the substrate and the second phase change material are mixed and formed by extrusion, stamping or casting. The plant material is used to generate aerosols when heated. The plant material is the core source of fragrance. The endogenous substances in the plant material can give users a sense of physiological satisfaction. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction. Sheets, strips or powders are all shapes formed after the plant raw materials are crushed. After the substrate and the second phase change material are mixed, they are extruded, stamped or cast to form an integrated structure of the plant material in the form of sheets, strips or powders, the second phase change material, etc.

[0126] Exemplarily, in one embodiment, the plant material can be a combination of one or more plant raw materials such as tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust and aromatic plants after being crushed.

[0127] The sheet shape can be a shape formed by breaking the original shape of the plant material and then reshaping it. For example, the plant material is reshaping it through a rolling method, a thick pulp method or a papermaking method. For example, the sheet shape is formed by making the plant material into a fiber pulp and then drying and dehydrating it.

[0128] The strips may be formed by directly cutting the plant material.

[0129] Powdered form may refer to the form formed after the plant material is ground.

[0130] Plant raw materials refer to raw materials that retain the natural form of plants. Generally, after plant raw materials are harvested from the land, they are processed by removing rotten old leaves, cleaning, drying, etc., but no deep processing that changes the natural form of the plants is carried out.

[0131] In one embodiment, the substrate and the second phase change material are mixed and then formed by extrusion, stamping or casting. In other words, the substrate and the second phase change material are formed into an integral structure by extrusion, stamping or casting.

[0132] In one embodiment, the hydraulic diameter of the cross-sectional shape of the aerosol generating substrate 1 is 4 mm to 10 mm. Exemplarily, the hydraulic diameter of the cross-sectional shape of the aerosol generating substrate 1 is 4 mm, 4.5 mm, 5 mm, 7 mm, 9 mm or 10 mm, etc. In the case where the hydraulic diameter of the cross-sectional shape of the aerosol generating substrate 1 is less than 4 mm, the suction resistance is relatively large, and it is not conducive to the release of aerosols in the aerosol generating substrate 1, reducing the user's suction experience. In the case where the hydraulic diameter of the cross-sectional shape of the aerosol generating substrate 1 is greater than 10 mm, the suction resistance is relatively small, and there is a "empty" phenomenon during the suction process.

[0133] In one embodiment, the dimension of the aerosol-generating substrate 1 along the longitudinal direction is 3 mm to 20 mm. Exemplarily, the dimension of the aerosol-generating substrate 1 along the longitudinal direction is 3 mm, 4 mm, 5 mm, 5.5 mm, 8 mm, 10 mm, 12 mm, 15 mm or 20 mm, etc. In this way, the length of the aerosol-generating substrate 1 along the longitudinal direction is moderate, so that the length of the aerosol-generating product is moderate, which is not only convenient for manufacturing and production, but also convenient for the aerosol-generating product to be used with a handheld aerosol-generating device.

[0134] The following schematically shows a specific embodiment, which is described in detail as follows:

[0135] For the first specific embodiment, please refer to Figures 2 to 4 The aerosol generating substrate 1 is cylindrical and has a plurality of linear air channels 1a extending in the longitudinal direction. The air channels 1a may be prefabricated air channels 1a or may be air channels 1a formed after the second phase change material is gasified. The substrate has a first microchannel and / or a second microchannel. In other words, the substrate may have microgaps and / or micropores.

[0136] See also Figure 2 and Figure 4The shell 2 includes a first shell 21 and a second shell 22, and the first shell 21 and the second shell 22 may both have a first phase change material. That is to say, the air inlet 2b and the air outlet 2c may be formed by vaporizing the first phase change material. The phase change temperature of the first phase change material is 85°C to 185°C. In this way, when the temperature is lower than 85°C, the first shell 21 and the second shell 22 are both dense structures, which can seal the aerosol generating matrix 1 and play a role in isolation and moisture-proofing. When the temperature rises to above 85°C, the first phase change material gradually vaporizes to form holes 2'. In this way, when the aerosol generating product 100 is at room temperature during transportation and storage, the shell 2 is a dense structure to better preserve the aerosol generating product 100. After the aerosol generating product 100 is assembled into an aerosol generating product, the heating element heats the aerosol generating product, and the first phase change material is heated and vaporized to form holes 2', and the shell 2 is no longer a dense structure.

[0137] See also Figure 4 , the surrounding part of the second opening 22a is inserted into the first opening 21a, the first end face 201 of the first shell 21 is a hemispherical surface, the second end face 202 of the second shell 22 is a hemispherical surface, the circumferential surface of the aerosol generating matrix 1 is in contact with the circumferential surface of the second shell 22 constituting the accommodating chamber 2a, and the volume of the first space 201a is greater than the volume of the second space 202a. The airflow enters the first space 201a from the air inlet 2b, flows through the aerosol generating matrix 1, and then enters the second space 202a. Because the volume of the first space 201a is greater than the volume of the second space 202a, the volume of the gas is compressed when passing through the second space 202a, and the flow rate is increased, thereby increasing the effect of the gas on the extraction of the effective components in the aerosol generating matrix 1.

[0138] For example, the material of the housing 2 in the first specific embodiment can be changed, and both the first shell 21 and the second shell 22 do not have the first phase change material. The air inlet 2b and the air outlet 2c can be pre-opened. The hydraulic diameter of the pre-opened hole can be smaller, so that the moisture-proof effect of the aerosol generating substrate 1 is less affected.

[0139] The material of the first shell 21 and the material of the second shell 22 may include one or more of polylactic acid, tamarind polysaccharide, pullulan, sodium alginate, palmitic acid, stearic acid and the like.

[0140] For the second specific embodiment, please refer to Figure 5 and Figure 6The difference between the second specific embodiment and the first specific embodiment is that the first end face 201 of the first shell 21 is flat, the second end face 202 of the second shell 22 is flat, and the number of air inlet holes 2b and the number of air outlet holes 2c can be the same as the number of air channels 1a and are arranged in a one-to-one correspondence. The hydraulic diameter of the air inlet hole 2b and the hydraulic diameter of the air outlet hole 2c are both smaller than the hydraulic diameter of the air channel 1a. In this way, the fluid flow rate when the gas flows through the aerosol generating matrix 1 can be increased, and the impact of the airflow on the inside of the aerosol generating matrix 1 can be increased, thereby improving the extraction of the effective ingredients in the aerosol generating matrix 1, thereby improving the utilization rate and consistency of use of the aerosol generating matrix 1. The consistency of the airflow when flowing through the aerosol generating matrix 1 is improved, and this form can reduce production costs and increase production rates.

[0141] For example, the material of the housing 2 in the second specific embodiment can be changed, and both the first housing 21 and the second housing 22 do not have the first phase change material. The air inlet 2b and the air outlet 2c can be pre-opened holes.

[0142] For the third specific embodiment, please refer to Figure 7 The third embodiment differs from the first embodiment in that the first end surface 201 is a plane. In this way, the second space 202a can shape the aerosol flowing through, so that the aerosol is more uniform during the inhalation process.

[0143] In this embodiment, the total area of ​​the air inlet 2b is (0.5-0.8) to the total area of ​​the air passage 1a: 1. In this way, the velocity of the airflow into the aerosol generating matrix 1 can be increased, thereby increasing the utilization rate of the effective components in the aerosol generating matrix 1.

[0144] The total area of ​​the air outlet 2c is compared with the total area of ​​the airway 1a in a ratio of (0.4-0.6):1. In this way, the aerosol flow rate can be further increased and the aerosol condensation can be reduced.

[0145] It should be noted that the total area of ​​the air inlet 2b is the sum of the areas of the flow cross sections of all the air inlet 2b. The air channel 1a is the sum of the areas of the flow cross sections of all the air channels 1a. The total area of ​​the air outlet 2c is the sum of the areas of the flow cross sections of all the air outlet 2c.

[0146] For the fourth specific embodiment, please refer to Figure 8The fourth specific embodiment differs from the first specific embodiment in that the shape of the first end surface 201 is a rotational curved surface combining a truncated cone surface and a hemispherical surface. The volume of the first compartment 201a is greater than the volume of the second compartment 202a. During use, a negative pressure area is generated in the first compartment 201a during the inhalation process, and the negative pressure area further generates smoke reflux when the inhalation ends. In this way, the aerosol flows back into the first compartment 201a after the inhalation ends, reducing the aerosol condensation phenomenon caused by the smoke reflux outside the aerosol generating matrix 1.

[0147] In this embodiment, the total area of ​​the air inlet 2b is (0.3-0.6) to the total area of ​​the air passage 1a: 1. In this way, the smoke backflow is reduced and the cleaning of consumables is improved.

[0148] The total area of ​​the air outlet 2c is compared with the total area of ​​the airway 1a in a ratio of (0.5-0.7): 1. In this way, the aerosol outflow velocity can be further increased, smoke condensation can be reduced, and the aerosol utilization rate can be increased.

[0149] For the fifth specific embodiment, please refer to Fig. 9 The fifth specific embodiment differs from the first specific embodiment in that the first end face 201 is in a concave cone shape, the second end face 202 is in a convex cone shape, and the peripheral portion of the first opening 21a and the peripheral portion of the second opening 22a are in contact with each other. In this way, the suction resistance of the central region of the aerosol generating substrate 1 can be increased, thereby increasing the flow rate of the circumferential region of the aerosol generating substrate 1, so that the utilization rate is higher.

[0150] In this embodiment, the total area of ​​the air inlet holes 2b is (0.3-0.6) to the total area of ​​the air channel 1a: 1. This has the effect of increasing the airflow velocity in the edge flow channel and increasing the aerosol utilization rate at the edge of the aerosol generating substrate 1.

[0151] The total area of ​​the air outlet holes 2c is compared with the total area of ​​the airway 1a in a ratio of (0.7-0.9):1. In this way, the deformation degree of the aerosol flowing out of the aerosol generating matrix 1 can be reduced, and the uniformity of the aerosol outflow can be improved.

[0152] For the sixth specific embodiment, please refer to Fig.10The difference between the sixth specific embodiment and the first specific embodiment is that the shell 2 includes a connecting ring 23, the connecting ring 23 does not have the first phase change material, and the surrounding parts of the first opening 21a and the surrounding parts of the second opening 22a are respectively sleeved on the outside of the two ends of the connecting ring 23 along the longitudinal direction. In other words, the connecting ring 23 is a dense structure. No holes 2' will be generated when the connecting ring 23 is heated. In this way, during the heating process of the heating element from the periphery, the aerosol generating matrix 1 is heated preferentially through the first shell 21 and the second shell 22, and then the aerosol generating matrix 1 is heated through the connecting ring 23, thereby extending the release time of the aerosol, so as to extend the user's inhalation time and the consistency before and after the inhalation process.

[0153] For the seventh specific embodiment, please refer to Fig.11 The difference between the seventh embodiment and the first embodiment is that the peripheral parts of the first opening 21a and the peripheral parts of the second opening 22a are in contact with each other, and the volume of the first space 201a is equal to the volume of the second space 202a. In other words, the edges of the first shell 21 and the second shell 22 do not overlap, which can improve the uniformity of medium heating when the periphery of the heating element is heated, thereby improving the user's smoking experience.

[0154] For the eighth specific embodiment, please refer to Fig.12 The difference between the eighth specific embodiment and the first specific embodiment is that a heating element 3 is arranged inside the aerosol generating substrate 1 .

[0155] The heating element 3 can generate heat to heat the aerosol generating matrix 1 from the inside. The heating element 3 can be a metal sheet or a metal column. The magnetic induction coil of the heating element can be sleeved on the outer periphery of the housing 2, and the heating element 3 generates heat under the alternating magnetic field of the magnetic induction coil. In this way, when in use, the aerosol generating device only needs to be provided with the magnetic induction coil, and the heating element 3 is not required. After the heating is completed, the magnetic induction coil of the aerosol generating device does not need to be cleaned.

[0156] During the inhalation process, the aerosol generating substrate 1 is heated to generate aerosol, and the aerosol released by the aerosol generating substrate 1 flows through the first microchannel formed by the micropores and the second microchannel formed by the microgaps. The airflow in the first microchannel and the second microchannel flows to the functional section 200 and finally enters the user's mouth.

[0157] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0158] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, characterized in that include: Aerosol-generating matrix; The shell has a containing cavity formed therein, an air inlet and an air outlet are formed on the surface of the shell, the air inlet and the air outlet are both connected to the containing cavity, and the aerosol generating matrix is ​​arranged in the containing cavity.

2. The aerosol-generating article according to claim 1, wherein The shell includes a first phase change material. After the first phase change material is heated and vaporized, holes are formed on the surface of the shell. The holes are at least one of the air inlet and the air outlet.

3. The aerosol-generating article according to claim 2, wherein: The shell includes a skeleton material that remains solid when heated.

4. The aerosol-generating article according to claim 2, wherein: The first phase change material includes at least one of polyethylene glycol, chitosan, gelatin, wax, starch and konjac glucomannan; and the phase change temperature of the first phase change material is 85°C to 185°C.

5. The aerosol-generating article of claim 2, wherein: The hydraulic diameter of the holes is 0.05 mm to 6 mm.

6. The aerosol-generating article of claim 1, wherein: A pre-opening is formed on the surface of the shell, and the pre-opening is at least one of the air inlet and the air outlet.

7. An aerosol generating article according to claim 6, characterized in that The hydraulic diameter of the pre-opening is 0.01 mm to 8 mm.

8. The aerosol-generating article of claim 1, wherein: The surface of the shell has a first end face and a second end face opposite to each other in the longitudinal direction, the first end face is formed with the air inlet hole, and the second end face is formed with the air outlet hole, the air inlet hole and the air outlet hole are respectively located on two opposite sides of the aerosol generating substrate in the longitudinal direction, and the circumferential surface of the aerosol generating substrate is abutted against part of the circumferential surface of the accommodating cavity.

9. An aerosol generating article according to claim 8, characterized in that The first end surface is spaced apart from a surface of the aerosol generating substrate facing the first end surface in the longitudinal direction to form a first spacing space, and the second end surface is spaced apart from a surface of the aerosol generating substrate facing the second end surface in the longitudinal direction to form a second spacing space.

10. An aerosol-generating article according to claim 9, characterized in that The volume of the first compartment is greater than the volume of the second compartment.

11. The aerosol-generating article of claim 8, wherein: At least one of the first end surface and the second end surface is a rotational curved surface or a plane.

12. An aerosol-generating article according to claim 11, characterized in that The rotation curved surface is a hemispherical surface or a conical surface.

13. The aerosol-generating article of claim 11, wherein: The first end surface is a concave conical surface that is concave toward the direction approaching the aerosol generating substrate, and the second end surface is a convex conical surface that is convex toward the direction away from the aerosol generating substrate.

14. The aerosol-generating article of claim 8, wherein: The aerosol generating substrate is an integral structure and is formed with air passages passing through two end surfaces along the longitudinal direction.

15. The aerosol-generating article of claim 1, wherein: The aerosol generating substrate comprises a substrate and a second phase change material. The substrate generates aerosol when heated, and the second phase change material vaporizes when heated to form gaps in the substrate.

16. An aerosol-generating article according to claim 15, characterized in that The substrate comprises plant materials, and the plant materials are in the form of sheets, strips or powders; the substrate and the second phase change material are mixed and formed by extrusion, stamping or casting.

17. The aerosol-generating article of claim 1, wherein: The cross-sectional shape of the aerosol generating substrate has a hydraulic diameter of 4 mm to 10 mm; the dimension of the aerosol generating substrate in the longitudinal direction is 3 mm to 20 mm.

18. The aerosol-generating article of claim 1, wherein: The shell includes a first shell and a second shell, the first shell is a hollow structure with a first opening, the second shell is a hollow structure with a second opening, the surrounding part of the first opening and the surrounding part of the second opening are connected to jointly define the accommodating cavity, the first shell has the air inlet hole, and the second shell has the air outlet hole.

19. An aerosol-generating article according to claim 18, characterized in that The peripheral portion of the first opening and the peripheral portion of the second opening have opposite end surfaces in contact with each other; or, The peripheral portion of the first opening and the peripheral portion of the second opening are partially nested.

20. The aerosol-generating article of claim 18, wherein: The shell includes a connecting ring, which is a hollow structure with openings at both ends along the longitudinal direction. The first shell and the second shell are respectively arranged at the two ends of the connecting ring along the longitudinal direction, and the surrounding parts of the first opening and the surrounding parts of the second opening are respectively connected to the two ends of the connecting ring along the longitudinal direction.

21. The aerosol-generating article of claim 1, wherein: The aerosol generating article comprises a functional section, and the functional section is arranged at one end of the shell in the longitudinal direction.

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