Aerosol substrate structure and aerosol generating device

Abstract

An aerosol substrate structure (100) and an aerosol generating device. The aerosol substrate structure comprises a substrate section (111), an air passage section (112), and a filter section (113) which are sequentially connected and communicated with each other; the substrate section (111) is provided with a cavity (111d), and an aerosol generating substrate (120) is provided in the cavity (111d); the side wall of the air passage section is provided with an air inlet hole (142), and the air inlet hole (142) is spaced apart from the substrate section (111); a flow guide (122) is provided in the air passage section (112); the flow guide (122) is internally provided with a first vaping channel (122d), and the first vaping channel (122d) is communicated with the cavity (111d); a flow guide channel (132) is formed between the side wall of the flow guide (122) and the side wall of the air passage section (112), and the flow guide channel (132) is communicated with the cavity (111d); the flow guide channel (132) is used for guiding an airflow entering the air inlet hole (142) to the cavity (111d) so as to take away an aerosol close to the flow guide (122) end in the cavity (111d). The flow guide channel (132) guides the airflow entering the air inlet hole (142) to the cavity (111d), so as to increase airflow disturbance to take away more aerosol close to the flow guide (122) end in the cavity (111d), so that a user can vape more aerosol at a time during vaping, thereby improving vaping experience.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to Chinese Patent Application No. 202111395871.4, filed November 23, 2021, which is herein incorporated by reference in its entirety.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of electronic atomization devices, and particularly relates to an aerosol substrate structure and an aerosol generation device.BACKGROUND

[0003] A heat-not-burning (HNB) device is a combination device of a heating device and an aerosol generation substrate (a processed plant leaf product). The aerosol generation substrate may generate aerosols when heated by the device at a relative low temperature without burning. In this way, the aerosol generation substrate may generate aerosols required for users without burning.

[0004] While aerosols are generated through an existing heat-not-burning device, airflow does not flow through the aerosol generation substrate, leading to a poor effect in taking the aerosols generated by the aerosol generation substrate to an inhaling opening and accordingly resulting in less aerosols at the inhaling opening of the heat-not-burning device.SUMMARY

[0005] The aerosol substrate structure and aerosol generation device provided in the present disclosure solve the technical problem that airflow cannot take sufficient aerosols to an inhaling opening in the related art.

[0006] In order to solve the above technical problem, a first aspect of the present disclosure provides an aerosol generation substrate, including: a substrate section, an airway section and a filter section connected in sequence and in communication with each other. The substrate section defines a cavity, and the cavity is configured to receive an aerosol generation substrate. An air inlet hole is defined on a side wall of the airway section, and the air inlet hole and the substrate section are spaced from each other. An airflow guiding element is arranged in the airway section. A first inhaling channel is defined in the airflow guiding element, and the first inhaling channel is in communication with the cavity. An airflow guiding channel is formed between a side wall of the airflow guiding element and the side wall of the airway section, and the airflow guiding channel is in communication with the cavity. The airflow guiding channel is configured to guide airflow entering the air inlet hole to the cavity, so as to take away aerosols on an end of the cavity close to the airflow guiding element.

[0007] In some embodiments, the airflow guiding element includes a seal portion, an airflow guiding portion and a communication portion arranged coaxially. The first inhaling channel penetrates through the seal portion, the airflow guiding portion and the communication portion. An outer side surface of the seal portion abuts against an inner side surface of the airway section. At least part of outer side surfaces of the airflow guiding portion and the communication portion is spaced apart from the inner side surface of the airway section, to form the airflow guiding channel. The communication portion is in communication with the opening of the cavity.

[0008] In some embodiments, the airflow guiding portion is arranged corresponding to the air inlet hole, an outer diameter of the airflow guiding portion and an outer diameter of the communication portion are both smaller than an outer diameter of the seal portion, and the airflow guiding channel is formed between the outer side surfaces of the airflow guiding portion and the communication portion and the inner side surface of the airway section.

[0009] Alternatively, the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are equal to the outer diameter of the seal portion; one or more grooves are defined on an outer surface of the airflow guiding portion and an outer surface of the communication portion along an axial direction of the airflow guiding element; and the airflow guiding channel is formed between the groove and the inner side surface of the airway section.

[0010] In some embodiments, the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of the airflow guiding portion is larger than the outer diameter of the communication portion.

[0011] In some embodiments, the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of the airflow guiding portion gradually increases along the direction from the filter section to the substrate section.

[0012] In some embodiments, the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of a joint between the airflow guiding portion and the seal portion gradually reduces along a direction from the filter section to the substrate section.

[0013] In some embodiments, the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the airflow guiding portion and the seal portion are perpendicular to each other.

[0014] In some embodiments, an outer side surface of the joint between the airflow guiding portion and the seal portion is a tapered surface or an inward concave arc-shaped surface; and / or an outer side surface of the airflow guiding portion is the tapered surface or the inward concave arc-shaped surface.

[0015] In some embodiments, the communication portion includes a plurality of support bars, and the plurality of support bars are spaced from each other along a circumference of the airflow guiding portion, so as to achieve communication between the airflow guiding channel and the cavity.

[0016] In some embodiments, the communication portion includes a communication pipe, and a plurality of vent holes is arranged on a side wall of the communication pipe, so as to achieve communication between the airflow guiding channel and the cavity.

[0017] In some embodiments, the airflow guiding element includes a seal portion and an airflow guiding portion arranged coaxially. The first inhaling channel penetrates through the seal portion and the airflow guiding portion. An outer side surface of the seal portion abuts against an inner side surface of the airway section. An outer side surface of the airflow guiding portion and the inner side surface of the airway section are spaced from each other, to form an airflow guiding channel. The airflow guiding portion is in communication with the opening of the cavity.

[0018] In some embodiments, the airflow guiding element is integrally formed.

[0019] In some embodiments, a first support element is further arranged in the airway section. The first support element is arranged between the filter section and the airflow guiding element and abuts against the airflow guiding element. The first support element defines a second inhaling channel to achieve communication between the first inhaling channel and the filter section.

[0020] In some embodiments, a second support element is further arranged in the airway section. The second support element is arranged between the substrate section and the airflow guiding element and abuts against the airflow guiding element. The second support element defines a third inhaling channel to achieve communication between the first inhaling channel and the cavity.

[0021] In some embodiments, a protrusion or a groove is formed on an end face of the airflow guiding element close to the first support element, and configured for being snap-fitted with the first support element.

[0022] In order to solve the above technical problem, another aspect of the present disclosure provides an aerosol generation device, including: an aerosol substrate structure of any one of the above embodiments; and a heating device, including a power supply assembly and an electromagnetic coil. The power supply assembly is connected to the electromagnetic coil to supply power to the electromagnetic coil.

[0023] The present disclosure has the following effects. Differing from the related art, in the present disclosure, the airflow guiding channel is formed between the side wall of the airflow guiding element and the side wall of the airway section, and the airflow guiding channel is in communication with the cavity. The airflow entering the air inlet hole is guided to the cavity via the airflow guiding channel, so that airflow disturbance is enhanced, and thus more aerosols on the end of the cavity close to the airflow guiding element is taken away. In this way, during inhaling, users may inhale more aerosols at a time, and the experience is improved.BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To describe the technical solutions of the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts. FIG. 1 is a cross-sectional view of an aerosol substrate structure provided in the present disclosure. FIG. 2 is a schematic diagram of airflow guidance of FIG. 1. FIG. 3 is a first structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 4 is a second structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 5 is a third structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 6 is a fourth structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 7 is a fifth structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 8 is a sixth structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 9 is a seventh structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 10 is an eighth structural cross-sectional view of an airflow guiding element in the present disclosure. FIG. 11 is a first schematic diagram of a shape of a cross-sectional area of a first inhaling channel in the present disclosure. FIG. 12 is a second schematic diagram of a shape of a cross-sectional area of a first inhaling channel in the present disclosure. FIG. 13 is a third schematic diagram of a shape of a cross-sectional area of a first inhaling channel in the present disclosure. FIG. 14 is a fourth schematic diagram of a shape of a cross-sectional area of a first inhaling channel in the present disclosure. FIG. 15 is a fifth schematic diagram of a shape of a cross-sectional area of a first inhaling channel in the present disclosure. FIG. 16 is a cross-sectional view of an airflow guiding portion and an airway section in the present disclosure. FIG. 17 is a cross-sectional view of an aerosol generation device in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0025] The following clearly and completely describes the technical solutions in embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely some rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0026] In the following description, for the purpose of illustration rather than limitation, specific details such as the specific system structure, interface, and technology are proposed to thoroughly understand the present disclosure.

[0027] The terms "first", "second", and "third" in this application are merely for a purpose of description, and shall not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defining "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "a plurality of" means at least two, such as two and three unless it is specifically defined otherwise. All directional indications (for example, upper, lower, left, right, front, and rear) in the embodiments of the present disclosure are merely used for explaining relative position relationships, movement situations, or the like between the various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications change accordingly. In the embodiments of the present disclosure, the terms "include", "have", and any variant thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but further optionally includes a step or unit that is not listed, or further optionally includes another step or component that is intrinsic to the process, method, product, or device.

[0028] Embodiment mentioned in the specification means that particular features, structures, or characteristics described with reference to the embodiment may be included in at least one embodiment of the present disclosure. The term appearing at different positions of this specification may not refer to the same embodiment or an independent or alternative embodiment that is mutually exclusive with another embodiment. A person skilled in the art explicitly or implicitly understands that the embodiments described herein may be combined with other embodiments.

[0029] The following describes the present disclosure in detail with reference to the accompanying drawings and embodiments.

[0030] Referring to FIG. 1. FIG. 1 is a cross-sectional view of an aerosol substrate structure provided in the present disclosure. In this embodiment, the aerosol substrate structure 100 (as shown in FIG. 16) includes a substrate section 111, an airway section 112 and a filter section 113 connected in sequence and in air communication with each other. In the present disclosure, the substrate section 111, the airway section 112 and the filter section 113 each refer to a housing for a corresponding functional section of the aerosol substrate structure 100, and are each further provided with other elements therein.

[0031] In some embodiments, the substrate section 111 defines a cavity 111d, and the cavity 111d is configured to receive aerosol generation substrate 120, such as, leaves or flowers of plants. In an embodiment, the substrate section 111 may be a tubular element enclosed by an annular side wall, for example, a circular pipe of which one end is closed and the other end is open, so that a cavity 111d is formed therein. The aerosol generation substrate 120 is arranged in the cavity 111d. The open end of the substrate section 111 is a first opening 111b, and the first opening 111b is in communication with the airway section 112.

[0032] In this embodiment, the substrate section 111 may further serve as a heating element for generating heat through electromagnetic induction, so as to heat the aerosol generation substrate 120 therein. The side wall of the substrate section 111 may be made of a metal material, or a metal material layer is arranged on the inner surface or outer surface of the side wall of the substrate section 111. In this embodiment, the aerosol generation substrate 120 may be in direct contact with the inner surface of the substrate section 111, so that the heat generated by the substrate section 111 may be directly transferred to the aerosol generation substrate 120, and the heat does not need to be transferred in an air medium, so heat loss in a heat transfer process may reduce.

[0033] In an embodiment, in order to allow the side wall of the substrate section 111 to generate heat through electromagnetic induction, the material of the substrate section 111 is a ferromagnetic material with a Curie point temperature. Below the Curie point temperature, the ferromagnetic material is ferromagnetic and may continuously generate heat through electromagnetic induction under the action of an oscillating coil, thereby heating and baking the aerosol generation substrate 120. Above the Curie point temperature, the ferromagnetic material is transformed from ferromagnetic to paramagnetic. That is, the side wall of the substrate section 111 at this moment is no longer magnetic and stops heating the aerosol generation substrate 120 through electromagnetic induction, so that the temperature of the aerosol generation substrate 120 is accurately controlled within a certain temperature range, thereby preventing a problem such as scorching of the aerosol generation substrate 120 caused by an excessively high temperature for heating the aerosol generation substrate 120. In this way, the temperature of the aerosol generation substrate 120 may be accurately controlled.

[0034] An air inlet hole 142 is defined on the side wall of the airway section 112, and the air inlet hole 142 and the substrate section 111 are spaced from each other. That is, the air inlet hole 142 is arranged on one side of the middle of the airway section 112 close to the substrate section 111, and has a certain distance from the substrate section 111. When the aerosol generation substrate 120 is heated by the side wall of the substrate section 111, the temperature of airflow close to the substrate section 111 rises, which results in a temperature rise of aerosol formed by the aerosol generation substrate 120. The air inlet hole 142 is defined on one end of the middle of the airway section 112 close to the substrate section 111 and has a certain distance from the substrate section, which ensures that when the aerosol generation substrate 120 is heated by the side wall of the substrate section 111, the influence of the side wall of the substrate section 111 on the temperature of the airflow in the airway section 112 may reduce, so that the temperature of the airflow is not too high, thereby improving the user experience during inhaling.

[0035] In addition, in this embodiment, the airflow entering the airway section 112 through the air inlet hole 142 flows through only the first opening 111b of the cavity 111d without entering the cavity 111d. A plurality of air inlet holes 142 may be provided, and the plurality of air inlet holes 142 are arranged along the circumference of the side wall of the airway section 112. Such design may achieve a sufficient amount of inhaled aerosol, an appropriate inhaling resistance and an appropriate airflow temperature, thereby providing a good inhaling experience for users. The air inlet hole 142 may be circular, elliptic, rhombus, square, or the like in shape, which is selected based on production processes and costs of the aerosol substrate structure 100 and is not limited herein.

[0036] Referring to FIG. 2, an airflow guiding element 122 is arranged in the airway section 112. A first inhaling channel 122d is arranged in the airflow guiding element 122, and the first inhaling channel 122d is in communication with the cavity 111d. An airflow guiding channel 132 is formed between the side wall of the airflow guiding element 122 and the inner side surface of the airway section 112. The airflow guiding channel 132 is in communication with the cavity 111d. The airflow guiding channel 132 is configured to guide the airflow entering the air inlet hole 142 to one end of the cavity 111d close to the airflow guiding element 122, so as to take away the aerosols in the first opening 111b.

[0037] In some embodiments, during inhaling, the aerosol formed by the aerosol generation substrate 120 diffuses to the first opening 111b, and the external airflow enters the airflow guiding channel 132 through the air inlet hole 142; the airflow guiding channel 132 guides the airflow to the first opening 111b of the cavity 111d, and the airflow takes or carries the aerosols, then flows into the first inhaling channel 122d and is ultimately inhaled by a user via the filter section 113. In this process, the airflow guiding channel 132 may change the direction of the airflow entering the airway section 112, so that the airflow rushes to the first opening 111b of the cavity 111d, enhancing airflow disturbance in the first opening 111b, thereby allowing more aerosols to diffuse to the first opening 111b. In this way, more aerosols are taken to the filter section 113, increasing the amount of aerosol inhaled by the user at a time, thereby improving the user experience.

[0038] Referring to FIG. 3, airflow guiding element 122 includes a seal portion 122a, an airflow guiding portion 122b and a communication portion 122c. The seal portion 122a, the airflow guiding portion 122b and the communication portion 122c are coaxially arranged. The first inhaling channel 122d penetrates through the seal portion 122a, the airflow guiding portion 122b and the communication portion 122c. In some embodiments, the seal portion 122a is arranged close to the filter section 113, and the communication portion 122c of the airflow guiding element 122 is arranged close to the substrate section 111. The outer side surface of the seal portion 122a abuts against the inner side surface of the airway section 112, so as to prevent the airflow from directly diffusing to the filter section 113. The airflow guiding channel 132 is formed between the side walls of the airflow guiding portion 122b and the communication portion 122c and the inner side surface of the airway section 112. The airflow guiding channel 132 changes the direction of the airflow entering the air inlet hole 142, so that all the airflow first flows through the first opening 111b of the cavity 111d and then enters the first inhaling channel 122d. In order to allow the airflow guiding portion 122b to conveniently change the direction of the airflow entering the air inlet hole 142, the airflow flows through the first opening 111b along the airflow guiding channel 132, the airflow guiding portion 122b is arranged corresponding to the air inlet hole 142.

[0039] Referring to FIG. 4 and FIG. 5, in this embodiment, the outer diameter of the airflow guiding portion 122b and the outer diameter of the communication portion 122c are both smaller than the outer diameter of the seal portion 122a, and the outer diameter of the airflow guiding portion 122b is larger than the outer diameter of the communication portion 122c. By such design, a space exists between the entire outer side surfaces of the airflow guiding portion 122b and the communication portion 122c and the entire inner side surface of the airway section 112, so as to form the airflow guiding channel 132. In other embodiments, as shown in FIG. 16, the outer diameter of the airflow guiding portion 122b and the outer diameter of the communication portion 122c may also be equal to the outer diameter of the seal portion 122a. One or more grooves are defined on the outer surface of the airflow guiding portion 122b and the outer surface of the communication portion 122c along the axial direction of the airflow guiding element 122. The one or more grooves may match with the inner side surface of the airway section 112, to form the airflow guiding channel 132. The outer diameter of the seal portion 122a corresponds to the inner diameter of the airway section 112.

[0040] In an embodiment, referring to FIG. 3 to FIG. 6, the outer diameter of the airflow guiding portion 122b is consistent or remains unchanged along a direction from the filter section 113 to the substrate section 111. That is, the airflow guiding portion 122b is cylindrical. In an embodiment, referring to FIG. 7, the outer diameter of the airflow guiding portion 122b gradually increases along the direction from the filter section 113 to the substrate section 111. That is, the airflow guiding portion 122b is in a conical frustum shape. In another embodiment, the outer diameter of the airflow guiding portion 122b may also gradually reduce along the direction from the filter section 113 to the substrate section 111.

[0041] In some embodiments, the joint between the airflow guiding portion 122b and the seal portion 122a may be in gradual transition connection by a buffer section A, or the joint between the airflow guiding portion 122b and the seal portion 122a may be connected through a vertical plane (as shown in FIG. 10). In some embodiments, referring to FIG. 3 to FIG. 7, the outer diameter of the joint between the airflow guiding portion 122b and the seal portion 122a gradually reduces along the direction from the filter section 113 to the substrate section 111, to form a buffer section. The outer side surface of the joint between the airflow guiding portion 122b and the seal portion 122a is a tapered surface, such as, as shown in FIG. 3 to FIG. 5. Alternatively, the outer side surface of the joint between the airflow guiding portion 122b and the seal portion 122a is an inward concave arc-shaped surface, such as, as shown in FIG. 6 and FIG. 7. The buffer section A may also practically serve as the airflow guiding portion 122b or serve as a part of the airflow guiding portion 122b, such as, as shown in FIG. 8 and FIG. 9. The design of the buffer section A may reduce obstruction of the side wall of the airflow guiding portion 122b to the airflow.

[0042] The communication portion 122c is in communication with the first opening 111b of the cavity 111d. In an embodiment, referring to FIG. 8, the communication portion 122c includes a plurality of support bars (not shown in the figure), and the plurality of support bars are spaced from each other along the circumference of the airflow guiding portion 122b, so that the airflow guiding channel 132 is in communication with the cavity 111d. In another embodiment, referring to FIG. 9, the communication portion 122c includes a communication pipe, and a plurality of vent holes (not shown in the figure) is arranged on the side wall of the communication pipe, so that the airflow guiding channel 132 is in communication with the cavity 111d.

[0043] In other implementations, the communication portion 122c is a part of the airflow guiding portion 122b. That is, the airflow guiding element 122 includes the seal portion 122a and the airflow guiding portion 122b arranged coaxially. The airflow guiding portion 122b is in direct communication with the first opening 111b of the cavity 111d, and the communication portion 122c is an optional structure.

[0044] The first inhaling channel 122d penetrates through the seal portion 122a, the airflow guiding portion 122b and the communication portion 122c. The cross section of the first inhaling channel may be in various shapes. For example, the cross section is in a circular shape (as shown in FIG. 11), an elliptic shape (as shown in FIG. 12), a cross shape (as shown in FIG. 13), a pentacle shape (as shown in FIG. 14), or a combination of a circular shape and a cross shape (as shown in FIG. 15).

[0045] In addition, in order to facilitate installation of the airflow guiding element 122 in the airway section 112 and facilitate production and manufacturing of the airflow guiding element 122, in an embodiment, the airflow guiding element 122 is integrally formed. That is, the seal portion 122a, the airflow guiding portion 122b and the communication portion 122c are integrally formed. The materials of the airflow guiding element 122 may be carboxylate fibers, ceramics, high temperature resisting organic materials, or the like.

[0046] Still referring to FIG. 1 and FIG. 2, a first support element 152 is further arranged in the airway section 112. The first support element 152 is arranged between the filter section 113 and the airflow guiding element 122 and abuts against the airflow guiding element 122. the first support element 152 includes a second inhaling channel 152a, so as to achieve communication between the first inhaling channel 122d and the filter section 113.

[0047] In some embodiments, a protrusion or a groove is formed on the end face of the airflow guiding element 122 close to the first support element 152, and configured for being snap-fitted with the first support element 152. In another embodiment, as shown in FIG. 4, a protrusion (not shown in the figure) is disposed on the seal portion 122a of the airflow guiding element 122, a groove is defined on the end face of the first support element 152, and the first support element 152 is snap-fitted with the airflow guiding element 122. In an embodiment, as shown in FIG. 5, a groove (not shown in the figure) is defined on the seal portion 122a of the airflow guiding element 122, a protrusion is disposed on the end face of the first support element 152, and the first support element 152 is snap-fitted with the airflow guiding element 122. In an embodiment, as shown in FIG. 6, the seal portion 122a of the airflow guiding element 122 is horizontal, the end face of the first support element 152 is horizontal, and the first support element 152 abuts against the airflow guiding element 122.

[0048] As shown in FIG. 1, a second support element 162 is further arranged in the airway section 112. The second support element 162 is arranged between the substrate section 111 and the airflow guiding element 122 and abuts against the airflow guiding element 122. The second support element 162 defines a third inhaling channel 162a, so as to achieve communication between the first inhaling channel 122d and the cavity 111d. In an embodiment, as shown in FIG. 8, the communication portion 122c of the airflow guiding element 122 is a support bar, and the second support element 162 abuts against the support bar. In an embodiment, as shown in FIG. 9, the communication portion 122c of the airflow guiding element 122 is a communication pipe, and the second support element 162 abuts against the communication pipe. In addition, in order to facilitate installation, in another embodiment, the second support element 162 and the airflow guiding element 122 may be integrally formed. Moreover, in this embodiment, the material of the first support element 152 and the second support element 162 may be cellulose acetate fibers. The cellulose acetate fibers are used not only as a support element for fixing the airflow guiding element 122, but also as a cooling medium for cooling the airflow flowing through the second inhaling channel 152a and the third inhaling channel 162a.

[0049] The filter section 113 is in communication with one end of an inhaling channel 112a of the airway section 112 facing away from the substrate section 111, so that aerosols in the inhaling channel 112a may enter the filter section 113, and thus the aerosols inhaled in the airway section 112 are filtered through the filter section 113. In some embodiments, the filter section 113 may be arranged on one side of the airway section 112 away from the substrate section 111, and the filter section 113 may be filled with a filter medium. The filter medium may filter tar, suspended particles or the like in the aerosols, so that the filter medium filters the aerosols inhaled in the airway section 112, thereby reducing unwanted substances in the aerosols inhaled by users. The material of the filter medium may be the cellulose acetate fibers.

[0050] In some embodiments, a second opening 113a is defined on one end of the filter section 113 facing away from the airway section 112, so that the internal space of the filter section 113 is in communication with the external atmosphere. In an inhaling process, the airflow guiding channel 132 changes the direction of the airflow entering the airway section 112, so that the airflow rushes to the first opening 111b of the cavity 111d, enhancing airflow disturbance in the first opening 111b, thereby allowing more aerosols to diffuse to the first opening 111b. In this way, more aerosols are taken to the second opening 113a, and the users may inhale the aerosols from the second opening 113a.

[0051] In an embodiment, the substrate section 111, the airway section 112 and the filter section 113 may be in a hollow pipe shape and may be cylindrical. In other embodiments, the substrate section 111, the airway section 112 and the filter section 113 may also be in other shapes, such as, an elliptic shape. In an embodiment, the heating element 121, the airway section 112 and the filter section 113 may have the same outer diameter, so that the side wall of the substrate section 111, the side wall of the airway section 112 and the side wall of the filter section 113 abut against each other in sequence. In some embodiments, the material of the airway section 112 and the filter section 113 may be a paper-based or foil-based material. The material of the substrate section 111 may be a ferromagnetic material with a Curie point temperature. The ferromagnetic material may be an iron-nickel alloy, so that the ferromagnetic material may generate heat through electromagnetic induction, so as to heat and atomize the aerosol generation substrate 120 to generate aerosols.

[0052] In this embodiment, the airflow guiding channel 132 is formed between the side wall of the airflow guiding element 122 and the inner side surface of the airway section 112. The airflow guiding channel 132 is in communication with the first opening 111b of the cavity 111d. The airflow does not flow through the aerosol generation substrate 120 in the substrate section 111, and the aerosol formed by the aerosol generation substrate 120 in the airway section 112 diffuses to the first opening 111b. When the external airflow enters the airflow guiding channel 132 through the air inlet hole 142, the airflow guiding channel 132 changes the direction of the airflow, so that the airflow rushes to the first opening 111b of the cavity 111d, enhancing airflow disturbance in the first opening 111b, thereby allowing more aerosols to diffuse to the first opening 111b. In this way, more aerosols are taken to the second opening 113a, increasing the amount of aerosol inhaled by the user at a time, thereby improving the user experience.

[0053] The present disclosure further provides an aerosol generation device 200. Referring to FIG. 17, FIG. 17 is a schematic structural diagram of an aerosol generation device 200 provided in the present disclosure. The aerosol generation device 200 is configured to heat and bake an aerosol substrate structure 100 to generate aerosols for users to inhale.

[0054] The aerosol generation device 200 includes a heating device 210 and the aerosol substrate structure 100. The heating device 210 includes a power supply assembly 211 and a heating assembly 212, and the power supply assembly 211 is connected to the heating assembly 212 to supply power to the heating assembly 212. After being powered on, the heating assembly 212 may heat the aerosol generation substrate 120 in the aerosol substrate structure 100 to generate aerosols.

[0055] The aerosol substrate structure 100 in the aerosol generation device 200 may refer to the structure and function of the aerosol substrate structure 100 of any one of the above embodiments, and the same or similar technical effects may be achieved, which may not repeat here.

[0056] The power supply assembly 211 includes a battery (not shown in the figure) and a controller (not shown in the figure). The controller is electrically connected to the battery and the heating assembly 212. The battery is configured to provide power supply for the heating assembly 212 to heat the aerosol substrate structure 100. The controller is configured to control start and stop of heating of the heating assembly 212, and may control parameters such as power and temperature of the heating.

[0057] In an embodiment, as shown in FIG. 6, the material of the substrate section 111 of the aerosol substrate structure 100 in the aerosol generation device 200 includes a ferromagnetic material with a Curie point temperature. The heating assembly 212 is an electromagnetic coil 212a, and the power supply assembly 211 is connected to the electromagnetic coil 212a to supply power to the electromagnetic coil 212a. The electromagnetic coil 212a is configured to generate a magnetic field after being powered on, so that the side wall of the substrate section 111 in the aerosol substrate structure 100 heats and atomizes the aerosol generation substrate 120 through electromagnetic induction to generate aerosols.

[0058] In some embodiments, the material of the substrate section 111 is a ferromagnetic material with a curie point temperature. Therefore, below the Curie point temperature, the ferromagnetic material is ferromagnetic and may continuously generate heat through electromagnetic induction under the action of an oscillating coil, thereby heating and baking the aerosol generation substrate 120. However, above the Curie point temperature, the ferromagnetic material is transformed from ferromagnetic to paramagnetic. That is, the side wall of the substrate section 111 at this moment is no longer magnetic and stops heating the aerosol generation substrate 120 through electromagnetic induction, so that the temperature of the aerosol generation substrate 120 may be accurately controlled within a certain temperature range, thereby preventing a problem such as scorching of the aerosol generation substrate 120 caused by an excessively high temperature for heating the aerosol generation substrate 120. As a result, the temperature of the aerosol generation substrate 120 is accurately controlled, so that it is unnecessary to additionally provide a temperature sensing assembly in the heating device, thereby effectively lowering the production cost.

[0059] In this embodiment, the substrate section 111 of the aerosol substrate structure 100 in the aerosol generation device 200 has the cavity 111d, and the cavity 111d is configured to receive the aerosol generation substrate 120. In a state that the aerosol generation substrate 120 is received in the cavity 111d, the aerosol generation substrate 120 may be in direct contact with the inner surface of the cavity 111d.

[0060] The cavity 111d is defined in the substrate section 111 of the aerosol substrate structure 100 in the aerosol generation device 200, thus the aerosol generation substrate 120 received in the cavity 111d is in a sealed state. Thus, during use of the aerosol substrate structure 100, the aerosol generation substrate 120 does not fall into the heating device 210 from the aerosol substrate structure 100. After inhaling is completed, residues of the aerosol generation substrate 120 may be taken out together with the aerosol substrate structure 100 without being left in or attached to the heating device 210, facilitating cleaning of the heating device 210. In addition, in an embodiment, the airflow guiding element 122 and the aerosol substrate structure 100 are integrally formed. After the aerosol generation substrate 120 is inhaled completely, the airflow guiding element 122 may be replaced together with the aerosol substrate structure 100 without cleaning the airflow guiding element 122 and the aerosol substrate structure 100. In this way, more convenient cleaning of the heating device 210 is achieved.

[0061] In some embodiments, during inhaling, the airflow does not flow through the aerosol generation substrate 120 in the substrate section 111. The airflow guiding channel 132 is formed between the side wall of the airflow guiding element 122 in the airway section 112 and the inner surface of the airway section 112. The airflow guiding channel 132 is in communication with the first opening 111b. the aerosol formed by the aerosol generation substrate 120 diffuses to the first opening 111b. The external airflow enters the airflow guiding channel 132 through the air inlet hole 142, and the airflow guiding channel 132 changes the direction of the airflow, so that the airflow rushes to the first opening 111b of the cavity 111d. The airflow disturbance in the first opening 111b is enhanced. As a result, more aerosols diffusing to the first opening 111b are taken away, increasing the amount of aerosol inhaled by the user at a time, thereby improving the user experience (on the premise of ensuring the temperature).

[0062] The above descriptions are merely implementations of this application but are not intended to limit the patent scope of this application. Any equivalent structural or equivalent process transformation made based on the content of the specification and the accompanying drawings of this application for direct or indirect use in other relevant technical fields shall fall within the patent protection scope of this application in the same way.

Claims

1. An aerosol substrate structure, comprising: a substrate section, an airway section and a filter section connected in sequence and in communication with each other; wherein the substrate section defines a cavity with one closed end, and the cavity is configured to receive aerosol generation substrate; an air inlet hole is defined on a side wall of the airway section, and the air inlet hole and the substrate section are spaced from each other; and an airflow guiding element is arranged in the airway section, a first inhaling channel is defined in the airflow guiding element, and the first inhaling channel is in communication with an opening of the cavity; an airflow guiding channel is formed between a side wall of the airflow guiding element and the side wall of the airway section, and the airflow guiding channel is in communication with the cavity; and the airflow guiding channel is configured to guide airflow entering the air inlet hole to the cavity, so as to take away aerosols on an end of the cavity close to the airflow guiding element.

2. The aerosol substrate structure of claim 1, wherein the airflow guiding element comprises a seal portion, an airflow guiding portion and a communication portion arranged coaxially; the first inhaling channel penetrates through the seal portion, the airflow guiding portion and the communication portion; an outer side surface of the seal portion abuts against an inner side surface of the airway section; at least part of outer side surfaces of the airflow guiding portion and the communication portion is spaced apart from the inner side surface of the airway section, to form the airflow guiding channel; and the communication portion is in communication with the opening of the cavity.

3. The aerosol substrate structure of claim 2, wherein the airflow guiding portion is arranged corresponding to the air inlet hole; an outer diameter of the airflow guiding portion and an outer diameter of the communication portion are both smaller than an outer diameter of the seal portion, and the airflow guiding channel is formed between the outer side surfaces of the airflow guiding portion and the communication portion and the inner side surface of the airway section; or the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are equal to the outer diameter of the seal portion; one or more grooves are defined on an outer surface of the airflow guiding portion and an outer surface of the communication portion along an axial direction of the airflow guiding element; and the airflow guiding channel is formed between the groove and the inner side surface of the airway section.

4. The aerosol substrate structure of claim 3, wherein the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of the airflow guiding portion is larger than the outer diameter of the communication portion.

5. The aerosol substrate structure of claim 3, wherein the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of the airflow guiding portion gradually reduces, gradually increases or remains unchanged along a direction from the filter section to the substrate section.

6. The aerosol substrate structure of claim 3, wherein the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the outer diameter of a joint between the airflow guiding portion and the seal portion gradually reduces along a direction from the filter section to the substrate section.

7. The aerosol substrate structure of claim 3, wherein the outer diameter of the airflow guiding portion and the outer diameter of the communication portion are both smaller than the outer diameter of the seal portion, and the airflow guiding portion and the seal portion are perpendicular to each other.

8. The aerosol substrate structure of claim 5 or 6, wherein an outer side surface of the joint between the airflow guiding portion and the seal portion is a tapered surface or an inward concave arc-shaped surface; and / or an outer side surface of the airflow guiding portion is the tapered surface or the inward concave arc-shaped surface.

9. The aerosol substrate structure of claim 2, wherein the communication portion comprises a plurality of support bars, and the plurality of support bars are spaced from each other along a circumference of the airflow guiding portion, so as to achieve communication between the airflow guiding channel and the cavity.

10. The aerosol substrate structure of claim 2, wherein the communication portion comprises a communication pipe, and a plurality of vent holes are arranged on a side wall of the communication pipe, so as to achieve communication between the airflow guiding channel and the cavity.

11. The aerosol substrate structure of claim 1, wherein the airflow guiding element comprises a seal portion and an airflow guiding portion arranged coaxially, and the first inhaling channel penetrates through the seal portion and the airflow guiding portion; an outer side surface of the seal portion abuts against an inner side surface of the airway section; an outer side surface of the airflow guiding portion and the inner side surface of the airway section are spaced from each other, to form the airflow guiding channel; and the airflow guiding portion is in communication with the opening of the cavity.

12. The aerosol substrate structure of claim 1, wherein the airflow guiding element is integrally formed.

13. The aerosol substrate structure of claim 1, wherein a first support element is further arranged in the airway section; the first support element is arranged between the filter section and the airflow guiding element and abuts against the airflow guiding element; and the first support element defines a second inhaling channel to achieve communication between the first inhaling channel and the filter section.

14. The aerosol substrate structure of claim 13, wherein a second support element is further arranged in the airway section; the second support element is arranged between the substrate section and the airflow guiding element and abuts against the airflow guiding element; and the second support element defines a third inhaling channel to achieve communication between the first inhaling channel and the cavity.

15. The aerosol substrate structure of claim 13, wherein a protrusion or a groove is formed on an end face of the airflow guiding element close to the first support element, and configured for being snap-fitted with the first support element.

16. An aerosol generation device, comprising: the aerosol substrate structure of any one of claims 1 to 13; and a heating device, comprising a power supply assembly and an electromagnetic coil; wherein the power supply assembly is connected to the electromagnetic coil to supply power to the electromagnetic coil.

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