Aerosol Substrate Structure and Aerosol Generator

Abstract

The present invention discloses an aerosol substrate structure and an aerosol generating device. The aerosol substrate structure includes a substrate part, a duct part installed at one end of the substrate part, and a filter part installed at the end of the duct part away from the substrate part, the substrate part includes an aerosol-generating substrate and a heating element, the heating element has an enclosed chamber, the aerosol-generating substrate is installed in the enclosed chamber, and the material of the heating element contains a ferromagnetic material having a Curie point temperature, so that the aerosol-generating substrate is heated and atomized by electromagnetic induction to form an aerosol. The aerosol substrate structure and the aerosol generating device of the present application have small heat loss during the heating process, the residue of the aerosol-generating substrate is unlikely to remain in the heating device, and the compatibility of the material components of the generated aerosol is high, so that the user can inhale better.

Description

Technical Field

[0001] <Cross - reference to Related Applications> This application claims the priority of Chinese Patent Application No. 2021108028950, filed on July 15, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to the technical field of electronic atomization devices, and particularly to an aerosol matrix structure and an aerosol generating device.

Background Art

[0003] A heat - not - burning (HNB) device is a combined device that adds an aerosol - generating substrate (a product such as processed plant leaves) to a heating device. The external heating device can heat the aerosol - generating substrate to a high temperature so that the aerosol - generating substrate can generate the required aerosol for the user without combustion, but not reach the combustion temperature.

[0004] Generally, a heating member is provided in the heating device. When the aerosol - generating substrate is inserted into the heating device, the heating member generates heat to heat the aerosol - generating substrate. However, the heat loss in the process of heat transfer from the heating member to the aerosol - generating substrate is large, which affects the heating efficiency.

[0005] Also, the aerosol - generating substrate is generally wrapped in a paper - like material to form an aerosol matrix structure with both ends open. When the user extracts the aerosol matrix structure after inhalation, the residue of the aerosol - generating substrate is likely to remain or adhere to the heating device, making it difficult to clean the heating device, causing strange smells and unpleasant odors, and easily having a profound impact on the user's inhalation experience. Also, during the inhalation process, external cold air flows into the aerosol - generating substrate, rapidly changing the temperature of the aerosol - generating substrate, making the decomposition reaction of the aerosol - generating substrate unstable and reducing the compatibility of the generated aerosol's material components. This affects the user's inhalation feeling.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The aerosol substrate structure and the aerosol generating device according to the present invention solve the problems that the heat loss during the heating process is relatively large, the residue of the aerosol generating substrate easily remains in the heating device, the compatibility of the generated aerosol's material components is low, and the user's inhalation feeling is poor.

Means for Solving the Problems

[0007] To solve the above technical problems, the first technical solution used in the present application is as follows. An aerosol substrate structure is provided, and the aerosol substrate structure includes a substrate portion, a duct portion installed at one end of the substrate portion, and a filter portion installed at the end of the duct portion away from the substrate portion. The substrate portion includes an aerosol generating substrate and a heating element. The heating element has a sealed chamber, and the aerosol generating substrate is provided in the sealed chamber. By including a ferromagnetic material with a Curie point temperature in the material of the heating element, the aerosol generating substrate is heated by electromagnetic induction to be atomized to form an aerosol.

[0008] At least the material of the side of the heating element facing the aerosol generating substrate has a ferromagnetic material with a Curie point temperature.

[0009] The material of the heating element is a ferromagnetic material with a Curie point temperature.

[0010] The ferromagnetic material is an iron-nickel alloy.

[0011] The inner surface of the heating element is in direct contact with the aerosol generating substrate.

[0012] The duct portion has an inhalation passage. One end of the sealed chamber has a first opening, and the inhalation passage communicates with the sealed chamber through the first opening. When the inhalation passage communicates with the external atmosphere, air is inhaled during the inhalation process, thereby inhaling the aerosol formed in the substrate portion.

[0013] The heating element is a tubular body with its side walls sealed. The end connected to the duct portion of the tubular body is an open end, which becomes the first opening, and the end away from the duct portion of the tubular body is a sealed end.

[0014] A support medium for supporting the duct portion is installed on the inner wall of the duct portion, and the inside of the support medium is hollow. The space surrounded by the inner surface of the support medium forms an inhalation passage.

[0015] The filter portion communicates with the duct portion and is filled with a filtering medium for filtering the aerosol inhaled in the duct portion.

[0016] The material of the duct portion and / or the filter portion is a paper-based material or a foil-based material, and the support medium and / or the filtering medium is acetate fiber.

[0017] To solve the above technical problem, the second technical solution adopted by the present application is to provide an aerosol generating device comprising an aerosol substrate structure and a heating device. The aerosol substrate structure is the above-mentioned aerosol substrate structure.

[0018] The heating device includes a power supply assembly and a solenoid coil. The power supply assembly is connected to the solenoid coil and is used to supply power to the solenoid coil. After being energized, the solenoid coil generates a magnetic field, and the heating element in the aerosol substrate structure is used to heat and atomize the aerosol generating substrate by electromagnetic induction to form an aerosol.

Advantages of the Invention

[0019] In the aerosol substrate structure and the aerosol generating device according to the present invention, the aerosol substrate structure accommodates the aerosol generating substrate with a heating element, and by including a ferromagnetic material having a Curie point temperature in the material of the heating element, the ferromagnetic material having the Curie point temperature in the heating element is heated by electromagnetic induction, thereby heating and atomizing the aerosol generating substrate to form an aerosol. Since the aerosol substrate structure can directly heat the aerosol generating substrate with a heating element for accommodating the aerosol generating substrate, there is no need to conduct heat through other media, thereby effectively reducing heat loss in the heat conduction process.

[0020] Further, the aerosol substrate structure can seal the aerosol generating substrate by accommodating the aerosol generating substrate in a sealed chamber within the heating element. Thereby, after inhalation is completed, it is possible to take out the residue of the aerosol generating substrate together with the aerosol substrate structure, avoiding remaining or adhering in the heating device, preventing problems that make the cleaning of the heating device difficult or cause strange smells and odors. Also, during the inhalation process, since the airflow does not pass through the aerosol generating substrate in the substrate portion, the decomposition reaction of the aerosol generating substrate is not affected by cold air, the decomposition reaction is stable, contributing to the compatibility of the substance components of the generated aerosol, and further contributing to the improvement of the user's inhalation feeling.

Brief Description of the Drawings

[0021] To more clearly explain the technical solutions of the embodiments of the present application, the drawings necessary for describing the embodiments are briefly described below. Obviously, the drawings described below are merely examples of the embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

Figure 1

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Mode for Carrying Out the Invention

[0022] Hereinafter, with reference to the drawings of the embodiments of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, any other embodiments obtained by those skilled in the art without inventive labor belong to the protection scope of the present application.

[0023] In the following description, specific details such as specific system structures, interfaces, and technologies are provided for the purpose of explanation rather than limitation to understand the present application.

[0024] The terms "first", "second", and "third" in this application are used only for the purpose of explanation and should not be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features shown. Thus, the features defined by "first", "second", and "third" can explicitly or implicitly include at least one of the said features. In the description of this application, unless specifically and clearly defined otherwise, the meaning of "a plurality" is at least two, for example, two, three, etc. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are used to explain the relative positional relationship, movement status, etc. between each member in a specific posture (as shown in the figure). When the specific posture changes, the corresponding directional indications also change accordingly. The terms "comprise", "have" and any variations thereof in the embodiments of this application are intended to include non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but further includes optionally unlisted steps or units, or optionally further includes other steps or assemblies specific to these processes, methods, products or devices. As used herein, "embodiment" means that a specific feature, structure, or characteristic described with reference to an embodiment may be included in at least one embodiment of this application. The appearance of the term at each place in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment exclusive to other embodiments. As will be explicitly or implicitly understood by those skilled in the art, the embodiments described herein may be combined with other embodiments.

[0025] Hereinafter, this application will be described in detail by way of embodiments with reference to the drawings.

[0026] Referring to FIG. 1, FIG. 1 provides a cross-sectional view of an aerosol substrate structure 100 according to a first embodiment of this application. This embodiment provides an aerosol substrate structure 100, and the aerosol substrate structure 100 comprises a substrate portion 111, a duct portion 112, and a filter portion 113 that are sequentially connected.

[0027] The substrate portion 111 includes an aerosol generating substrate 120 and a heating element 121. The heating element 121 has a sealed chamber 111d for accommodating the aerosol generating substrate 120. That is, the aerosol generating substrate 120 is installed within the sealed chamber 111d of the heating element 121, and one end of the sealed chamber 111d has a first opening 111b. Specifically, the side wall of the heating element 121 is annularly surrounded to form a tubular body, and the end connected to the duct portion 112 of the tubular body is an open end. In this embodiment, the open end becomes the first opening 111b. Note that when the open end becomes the first opening 111b, the diameter of the first opening 111b coincides with the diameter of the sealed chamber 111d. Naturally, in other embodiments, the diameter of the first opening 111b may be smaller than the diameter of the sealed chamber 111d.

[0028] The duct portion 112 is used to inhale the aerosol formed within the substrate portion 111. The duct portion 112 is provided at the end of the substrate portion 111 that has the first opening 111b, and the duct portion 112 has an inhalation passage 112a inside, and the inhalation passage 112a communicates with the sealed chamber 111d of the substrate portion 111 via the first opening 111b.

[0029] By the filter portion 113 communicating with the end of the inhalation passage 112a of the duct portion 112 that is away from the substrate portion 111, the aerosol within the inhalation passage 112a can enter the filter portion 113, whereby the filter portion 113 filters the aerosol inhaled in the duct portion 112. Specifically, the filter portion 113 may be provided on the side of the duct portion 112 that is away from the substrate portion 111, and the filter portion 113 may be filled with a filtering medium 114. The filtering medium 114 can filter the tar, suspended particles, etc. within the aerosol, whereby the filtering medium 114 filters the aerosol inhaled in the duct portion 112 to reduce unnecessary substances in the aerosol inhaled by the user. The material of the filtering medium 114 may be acetate fiber. Further, by the end of the filter portion 113 that is away from the duct portion 112 having a second opening 113a, the internal space of the filter portion 113 is communicated with the external atmosphere. The user can inhale the aerosol from the end of the filter portion 113 that has the second opening 113a.

[0030] The materials of the duct portion 112 and the filter portion 113 may be paper-based materials or foil-based materials. The material of the heating element 121 may include a ferromagnetic material having a Curie point temperature. The ferromagnetic material may be, for example, an iron-nickel alloy. By electromagnetic induction, the ferromagnetic material having a Curie point temperature on the heating element 121 is heated, thereby heating the aerosol generation substrate 120 inside it to atomize and form an aerosol. Specifically, by surrounding a solenoid coil in the circumferential direction of the outer periphery of the substrate portion 111, a magnetic field can be generated when the solenoid coil is energized, thereby heating the ferromagnetic material having a Curie point temperature on the heating element 121.

[0031] The fact that the material of the heating element 121 includes a ferromagnetic material having a Curie point temperature means that the material of the heating element 121 may be only a ferromagnetic material having a Curie point temperature, and the heating element 121 means that all of them heat the aerosol generation substrate 120 as a heating member. Naturally, the material of the heating element 121 may include a ferromagnetic material having a Curie point temperature and other materials other than the ferromagnetic material having a Curie point temperature, and the other material and the ferromagnetic material having a Curie point temperature are only a physical combination. That is, the ferromagnetic material does not chemically react with other materials.

[0032] Compared with the prior art in which a heating member is installed in a heating device and the heat generated by the heating member is conducted to the aerosol generation substrate 120 by a series of media, for example, air, a paper material wrapping the aerosol generation substrate 120, in this embodiment, the aerosol generation substrate 120 is provided in the heating element 121 made of a ferromagnetic material having a Curie point temperature, and the heating element 121 can directly heat the aerosol generation substrate 120 inside it by generating heat by electromagnetic induction as a heating member. Heat is directly transferred from the heating element 121 to the aerosol generation substrate 120, reducing the medium through which heat is transferred, thereby reducing heat loss in the heat conduction process.

[0033] In addition, the heating element 121 is heated by a ferromagnetic material having a Curie point temperature. The ferromagnetic material having a Curie point temperature is below the Curie point temperature. The ferromagnetic material is ferromagnetic and can continuously generate heat by electromagnetic induction under the action of the oscillation coil. Therefore, the heating and baking of the aerosol generation substrate 120 are realized. However, after exceeding the Curie point temperature, the ferromagnetic material changes from ferromagnetic to paramagnetic. That is, at this point, the heating element 121 loses its magnetism, and the heating of the aerosol generation substrate 120 by electromagnetic induction of the heating element 121 stops. Thereby, the heating element 121 can automatically stop heating when the heating temperature exceeds the Curie point temperature, so as to accurately control the temperature of the aerosol generation substrate 120 within a specific temperature range, prevent the problem that the heating temperature of the aerosol generation substrate 120 is too high and the aerosol generation substrate 120 is burnt, thereby accurately controlling the temperature of the aerosol generation substrate 120, and further eliminating the need to separately install a temperature measurement assembly in the heating device, effectively reducing the production cost.

[0034] In addition, compared with the scheme in which the aerosol substrate structure 100 is wrapped with a paper material outside the aerosol generation substrate 120, in this embodiment, by wrapping the aerosol generation substrate 120 around the heating element 121, it is possible to further prevent the smell of paper during baking during inhalation, improving the inhalation feeling of the user.

[0035] In one embodiment, the material on at least the side of the heating element 121 facing the aerosol generation substrate 120 is a ferromagnetic material having a Curie point temperature. For example, the substrate portion 111 may have a two-layer structure. The material of the outer wall of the heating element 121 is a heat-insulating material, and the material of the inner wall of the heating element 121 is a ferromagnetic material having a Curie point temperature. Thereby, the distance between the heating element 121 and the aerosol generation substrate 120 becomes closer, and the heat loss in the heat transfer process becomes less.

[0036] In one embodiment, as shown in FIG. 1, when the aerosol generating substrate 120 is accommodated in the heating element 121, the heat generated by the heating element 121 can be directly transferred to the aerosol generating substrate 120 by the aerosol generating substrate 120 directly contacting the inner surface of the heating element 121. If there is a gap between the aerosol generating substrate 120 and the inner surface of the heating element 121, heat needs to be transferred from the heating element 121 to the aerosol generating substrate 120 through an air medium. However, when the aerosol generating substrate 120 directly contacts the inner surface of the heating element 121, there is no need for heat to be transferred through the air medium, and the heat loss in the heat transfer process is further reduced.

[0037] In one embodiment, the shapes of the heating element 121, the duct portion 112, and the filter portion 113 may be hollow tubular and may also be cylindrical. In other embodiments, the shapes of the substrate portion 111, the duct portion 112, and the filter portion 113 may be other shapes. Further, the shapes of the substrate portion 111, the duct portion 112, and the filter portion 113 may be the same, and all may exhibit a cylindrical shape.

[0038] In one embodiment, the inner and outer diameter dimensions of the heating element 121, the duct portion 112, and the filter portion 113 may be the same, whereby the side walls of the substrate portion 111, the duct portion 112, and the filter portion 113 are sequentially abutted.

[0039] In this embodiment, as shown in FIG. 1, the arrows in FIG. 1 indicate the flow direction of the air current. The sealed chamber 111d of the substrate portion 111 may include only the first opening 111b. That is, all other ends of the sealed chamber 111d other than the first opening 111b are sealed ends, so that the air current cannot enter from the substrate portion 111.

[0040] Specifically, in this embodiment, a first intake hole 112b is provided in the duct portion 112, and the number of the first intake holes 112b is at least one. By allowing the first intake hole 112b to communicate the external atmosphere with the intake passage 112a, the airflow can enter the intake passage 112a from the first intake hole 112b. Thereby, while carrying the aerosol generated in the substrate portion 111, the airflow enters the internal space of the filter portion 113 from the intake passage 112a and flows out from the second opening 113a of the filter portion 113, thereby realizing the inhalation process of the user.

[0041] By forming a sealed chamber 111d in the substrate portion 111 of the aerosol substrate structure 100, the aerosol generating substrate 120 is accommodated in the sealed chamber 111d. Thereby, when the aerosol generating substrate 120 is accommodated in the heating element 121, by sealing the aerosol generating substrate 120, it is possible to prevent the aerosol generating substrate 120 in the aerosol substrate structure 100 from falling onto the heating device during or after the inhalation process. At the same time, after the inhalation is completed, it is possible to take out the residue of the aerosol generating substrate 120 together with the aerosol substrate structure 100, avoid the occurrence of problems such as remaining or adhering to the heating device, and facilitate the cleaning of the heating device.

[0042] Also, during the inhalation process, the airflow does not pass through the aerosol generating substrate 120 in the substrate portion 111, and the decomposition reaction of the aerosol generating substrate 120 is not affected by the cold air, so that the decomposition reaction is stable, which contributes to the compatibility of the substance components of the generated aerosol and further contributes to the improvement of the user's inhalation feeling.

[0043] Since the formed aerosol has the effect of replacing the gas in the sealed chamber 111d, the oxygen content in the substrate portion 111 will decrease as the heating process progresses. At this time, even if the heating temperature is increased, the aerosol generating substrate 120 will not undergo a combustion phenomenon. Therefore, by further increasing the heating temperature of the aerosol generating substrate 120, the fragrant components in the aerosol generating substrate 120 can be sufficiently released to improve the user's inhalation feeling.

[0044] In a specific embodiment, as shown in FIG. 1, the heating element 121 has an annular side wall 111e and a bottom wall 111f. The bottom wall 111f is provided at an end away from the duct portion 112 of the annular side wall 111e, and together with the annular side wall 111e, an enclosed chamber 111d is formed. The annular side wall 111e and the bottom wall 111f may seal the end of the heating element 121 away from the duct portion 112 by a tight engagement, and the annular side wall 111e may be integrally formed with the bottom wall 111f. That is, the heating element 121 is integrally formed, the enclosed chamber 111d is integrally formed, and the end of the substrate portion 111 away from the duct portion 112 is sealed. Compared with the tight engagement between the annular side wall 111e and the bottom wall 111f, the integral formation of the enclosed chamber 111d can improve the sealing performance inside the substrate portion 111, and in the case of transportation, movement, opening, and other situations under the action of external forces, the bottom wall 111f is also not easy to loosen and fall off, preventing the problem that the heating device is difficult to clean due to the aerosol generation substrate 120 falling off, and can prevent the problem that the compatibility of the generated aerosol is low due to the airflow entering the substrate portion 111.

[0045] In the first embodiment, as shown in FIG. 1, the materials of the annular side wall 111e and the bottom wall 111f of the substrate portion 111 are both ferromagnetic materials having a Curie point temperature, and the annular side wall 111e and the bottom wall 111f are integrally formed. The aerosol substrate structure 100 inhales the aerosol by inhaling air from a plurality of first intake holes 112b.

[0046] The substrate portion 111 of the first embodiment has a sealed structure, and the airflow does not pass through the substrate portion 111. Therefore, the outflow of the aerosol generated in the substrate portion 111 is more difficult for the structure with both ends of the substrate portion 111 open, and the airflow cannot carry out the aerosol or the amount of the aerosol carried out is small, which will affect the user's inhalation experience.

[0047] The larger the number of the first intake holes 112b, the lower the temperature of the airflow within the aerosol substrate structure 100, the smaller the inhalation resistance, and the amount of inhaled aerosol in the aerosol substrate structure 100 tends to increase and then decrease as the number of the first intake holes 112b increases. In view of this, the specific number of the first intake holes 112b may be selected and set according to the actual situation. Specifically, a plurality of the first intake holes 112b are provided, and the plurality of first exhaust holes are arranged at intervals along the circumferential direction of the duct portion 112. Preferably, the plurality of first exhaust holes are uniformly arranged at intervals along the circumferential direction of the duct portion 112, thereby making the intake air in each radial direction of the duct portion 112 more uniform.

[0048] Specifically, the shape of the first intake holes 112b may be circular, elliptical, rhombic, square, etc., and the shape of the first intake holes 112b should be selected based on the production and processing process and cost of the aerosol substrate structure 100.

[0049] Specifically, the larger the aperture diameter of the first intake holes 112b, the lower the temperature of the airflow within the aerosol substrate structure 100, the greater the amount of aerosol inhaled by the user, and the smaller the inhalation resistance. Therefore, the dimension of the aperture diameter of the first intake holes 112b may be selected and set according to the actual situation. Naturally, considering the supporting effect of the duct portion 112, the number and the dimension of the aperture diameter of the first intake holes 112b can be designed in accordance with the diameter of the duct portion 112, so as to avoid the problems that the duct portion 112 is prone to deformation and collapse due to an overly large hole-opening area, and further block the intake passage 112a. In a specific embodiment, the dimension of the aperture diameter of the first intake holes 112b may be 0.2 mm to 1 mm.

[0050] In one embodiment, by setting the linear distance between the first intake holes 112b and the first opening 111b to be 2 mm to 14 mm, the linear distance between the first intake holes 112b and the first opening 111b can be shortened, and thereby the higher the temperature of the airflow within the aerosol substrate structure 100, the greater the amount of aerosol that the user can inhale.

[0051] In a specific embodiment, the first intake hole 112b may be provided at an end of the duct portion 112 close to the substrate portion 111. Naturally, the first intake hole 112b may also be provided at other positions of the duct portion 112. The hole drilling position may be designed based on the structure of the aerosol generating device 200 (see FIG. 6 below), but the design of the hole drilling position should avoid affecting the intake of the aerosol substrate structure 100 due to the aerosol generating device 200 blocking the first intake hole 112b.

[0052] Preferably, in a specific embodiment, the number of the first exhaust holes is 4 to 10, the shapes of the first exhaust holes are all circular, the diameter of the circular first intake hole 112b is 0.6 mm to 0.8 mm, the linear distances between the plurality of first intake holes 112b and the first opening 111b are all 4 mm to 10 mm, and they are uniformly arranged at intervals in the circumferential direction of the duct portion 112. Such a design of the first exhaust holes can make the amount of inhaled aerosol more sufficient, make the inhalation resistance appropriate, and make the temperature of the air flow appropriate, so that a good inhalation experience can be obtained for the user.

[0053] As can be seen from the above analysis, when the substrate portion 111 is a sealed structure, the heating temperature of the aerosol generating substrate 120 is higher than that of the non-sealed structure, and the hole drilling position of the first intake hole 112b is always close to the substrate portion 111. Therefore, the temperature of the aerosol inhaled by the user is always relatively high, which may give the user an insufficient inhalation experience.

[0054] In view of this, in one embodiment, referring to FIG. 2, FIG. 2 is a cross-sectional view of the aerosol substrate structure 100 according to the second embodiment. Considering the problem that the temperature of the aerosol inhaled by the user is relatively high, a plurality of first intake holes 112b are installed on the side wall of the duct portion 112, and a plurality of second intake holes 112c are further provided. The second intake holes 112c draw in external cold air during the inhalation process to cool the aerosol entering the inhalation passage 112a.

[0055] In one embodiment, as shown in FIG. 2, a plurality of first intake holes 112b are provided at an end of the duct portion 112 close to the substrate portion 111, and a plurality of second intake holes 112c are provided at an end of the duct portion 112 away from the substrate portion 111. Since the aperture diameter of the second intake holes 112c is smaller than that of the first intake holes 112b, most of the airflow enters through the first intake holes 112b, driving the aerosol generated in the substrate portion 111 for the user to inhale to flow through the intake passage 112a and the filter portion 113, thereby realizing the process of inhaling the aerosol. Only a very small amount of airflow enters through the second intake holes 112c, and since the aperture diameter of the second intake holes 112c is smaller, the amount of airflow entering through the second intake holes 112c is less, which does not significantly dilute the aerosol and can appropriately reduce the temperature of the aerosol entering the filter portion 113 to make the temperature of the aerosol inhaled by the user appropriate, thereby satisfying the user's inhalation experience.

[0056] In one embodiment, a plurality of second intake holes 112c are arranged at intervals along the circumferential direction of the duct portion 112. Preferably, both the plurality of first exhaust holes and the plurality of second intake holes 112c are uniformly arranged at intervals along the circumferential direction of the duct portion 112, thereby making the intake of the duct portion 112 in each radial direction more uniform.

[0057] In one embodiment, as shown in FIG. 2, the duct portion 112 includes a plurality of second intake hole sets 112d, and the plurality of second intake hole sets 112d are located at an end of the duct portion 112 away from the substrate portion 111. Each second intake hole set 112d has a plurality of second intake holes 112c. The plurality of second intake hole sets 112d are arranged at intervals along the axial direction of the duct portion 112, and the plurality of second intake holes 112c within each second intake hole set 112d are arranged at intervals along the circumferential direction of the duct portion 112. By providing the plurality of second intake hole sets 112d, the temperature of the airflow in the duct portion 112 can be further reduced, and the user's inhalation experience can be improved.

[0058] In the second embodiment, as shown in FIG. 2, a plurality of first intake holes 112b and two sets of second intake holes 112d are installed on the side wall of the duct portion 112, and both of the two sets of second intake holes 112d include a plurality of second intake holes 112c. The plurality of first intake holes 112b are uniformly installed on the side closer to the substrate portion 111 of the duct portion 112 in the circumferential direction, and the two sets of second intake holes 112d are installed on the side closer to the filter portion 113 of the duct portion 112. The plurality of second intake holes 112c in each set of second intake holes 112d are uniformly installed at intervals along the circumferential direction of the duct portion 112.

[0059] In one embodiment, referring to FIGS. 3 and 4, FIG. 3 is a cross-sectional view of a third embodiment of the aerosol substrate structure 100. FIG. 4 is a cross-sectional view of a fourth embodiment of the aerosol substrate structure 100. In the duct portion 112, a cooling medium 112e for cooling the aerosol entering the duct portion 112 may be further installed to improve the user's inhalation experience. The material of the cooling medium 112e may be polylactic acid or acetate fiber.

[0060] In one embodiment, referring to FIG. 3, the cooling medium 112e is installed on the inner wall of the duct portion 112 along the axial direction of the duct portion 112 and avoids the location of the first intake hole 112b. The cooling medium 112e may be installed on a part of the inner wall of the duct portion 112 or on the entire inner wall of the duct portion 112. In other embodiments, the cooling medium 112e may be installed inside the side wall of the duct portion 112, or the cooling medium 112e may be installed on the outer wall of the duct portion 112.

[0061] In the third embodiment, as shown in FIG. 3, the cooling medium 112e penetrates the duct portion 112 along the axial direction of the duct portion 112, that is, the cooling medium 112e extends from the first opening 111b to the connection portion between the duct portion 112 and the filter portion 113. The cooling medium 112e is installed on all the inner walls of the duct portion 112 and is installed avoiding the location of the first intake hole 112b. The cooling medium 112e is a hollow chamber, and the space surrounded by the inner surface of the cooling medium 112e forms the intake passage 112a. In the intake process, when the airflow flows through the intake passage 112a, the cooling medium 112e can cool the airflow from all directions.

[0062] In one embodiment, the airflow can pass through the cooling medium 112e, and the aerosol in the duct portion 112 can flow through the cooling medium 112e, whereby the cooling medium 112e can uniformly cool the aerosol in the duct portion 112. In the fourth embodiment, as shown in FIG. 4, the cooling medium 112e is filled in the intake passage 112a and is located at the end of the duct portion 112 away from the substrate portion 111. After the airflow enters the intake passage 112a from the first intake hole 112b and carries the aerosol generated in the substrate portion 111, it flows through the cooling medium 112e, and the cooling medium 112e can uniformly cool the aerosol, thereby making the temperature of the aerosol finally inhaled by the user more appropriate and improving the user's inhalation experience.

[0063] In one embodiment, in addition to filling the filter medium 114 in the filter portion 113, the cooling medium 112e may also be filled, thereby cooling the aerosol flowing through the filter portion 113.

[0064] In one embodiment, the side wall of the duct portion 112 may be composed of the cooling medium 112e, thereby cooling the airflow in the intake passage 112a. The above methods for cooling the airflow in the intake passage 112a can be used in combination and are not limited to the form of being used independently.

[0065] In one embodiment, as shown in FIG. 5, FIG. 5 is a cross-sectional view of the aerosol substrate structure 100 of the fifth embodiment according to the present application. On the inner wall of the duct portion 112, a support medium 112f may be further provided to support the duct portion 112 and prevent the duct portion 112 from deforming or collapsing, thereby blocking the inhalation passage 112a and affecting the inhalation process of the aerosol substrate structure 100.

[0066] In one embodiment, as shown in FIG. 5, the support medium 112f is installed on the inner wall of the duct portion 112 along the axial direction of the duct portion 112 and avoids the location of the first intake hole 112b. The support medium 112f may be installed on a part of the inner wall of the duct portion 112 or on the entire inner wall of the duct portion 112.

[0067] In the fifth embodiment, as shown in FIG. 5, the support medium 112f penetrates the duct portion 112 along the axial direction of the duct portion 112, that is, the support medium 112f extends from the first opening 111b to the connection point between the duct portion 112 and the filter portion 113. The support medium 112f is installed on the entire inner wall of the duct portion 112 and is installed avoiding the location of the first intake hole 112b, and the inside of the support medium 112f is hollow. That is, the support medium 112f is a hollow chamber, and the space surrounded by the inner surface of the support medium 112f forms the inhalation passage 112a. In the fifth embodiment, the material of the duct portion 112 is a paper material, the support medium 112f is acetate fiber, and the support medium 112f can effectively prevent the deformation and collapse of the paper material. In addition to serving as the support medium 112f in the sixth embodiment, the acetate fiber can cool the airflow in the inhalation passage 112a as the cooling medium 112e.

[0068] The present application further provides an aerosol generating device 200. Referring to FIG. 6, FIG. 6 is a schematic structural diagram of the aerosol generating device 200 according to the present application. The aerosol generating device 200 is used to heat and bake the aerosol substrate structure 100 to generate an aerosol for the user to inhale.

[0069] The aerosol generating device 200 includes a heating device 210 and an aerosol substrate structure 100. The heating device 210 includes a power supply assembly 211 and a heating assembly 212. The power supply assembly 211 is connected to the heating assembly 212 and is used to supply power to the heating assembly 212. After being energized, the heating assembly 212 can heat the aerosol generating substrate 120 in the aerosol substrate structure 100 to form an aerosol.

[0070] The aerosol substrate structure 100 in the aerosol generating device 200 can further refer to the structure and function of the aerosol substrate structure 100 according to any one of the above embodiments, and can achieve the same or similar technical effects, but the detailed description is omitted here.

[0071] The power supply assembly 211 includes a battery (not shown) and a controller (not shown). The controller is electrically connected to both the battery and the heating assembly 212. The battery is used to supply power to the heating assembly 212 to heat the aerosol substrate structure 100. The controller is used to control the start and stop of the heating of the heating assembly 212 and can control parameters such as the heating power and temperature.

[0072] In one embodiment, as shown in FIG. 6, the material of the heating member 121 at the substrate portion 111 of the aerosol substrate structure 100 in the aerosol generating device 200 includes a ferromagnetic material having a Curie point temperature. The heating assembly 212 is a solenoid coil 212a. The power supply assembly 211 is connected to the solenoid coil 212a and is used to supply power to the solenoid coil 212a. After being energized, the solenoid coil 212a generates a magnetic field, and the heating member 121 in the aerosol substrate structure 100 heats and atomizes the aerosol generating substrate 120 by electromagnetic induction to form an aerosol.

[0073] In the aerosol generating device 200, compared with the prior art where the heating member 121 is installed in the heating device 210 and the heat generated by the heating member is conducted to the aerosol generating substrate 120 through a series of media, such as air, and a paper material wrapping the aerosol generating substrate 120, in this embodiment, the aerosol generating substrate 120 is provided in the heating element 121 made of a ferromagnetic material having a Curie point temperature, and the heating element 121 directly serves as a heating member to generate heat by electromagnetic induction, thereby heating the aerosol generating substrate 120 inside the heating element 121. Heat is directly transferred from the heating element 121 to the aerosol generating substrate 120, reducing the medium through which heat is transferred, thereby reducing heat loss in the heat conduction process.

[0074] In addition, the heating element 121 is heated by a ferromagnetic material having a Curie point temperature. The ferromagnetic material having a Curie point temperature is below the Curie point temperature, and the ferromagnetic material is ferromagnetic and can continuously generate heat by electromagnetic induction under the action of the oscillation coil. Therefore, baking the heating of the aerosol generating substrate 120 is realized. However, after exceeding the Curie point temperature, the ferromagnetic material changes from ferromagnetic to paramagnetic. That is, at this point, the heating element 121 loses its magnetism, and the heating element 121 stops heating the aerosol generating substrate 120 by electromagnetic induction. Thereby, the heating element 121 can automatically stop heating when the heating temperature exceeds the Curie point temperature, accurately controlling the temperature of the aerosol generating substrate 120 within a specific temperature range, and preventing the problem that the heating temperature of the aerosol generating substrate 120 is too high and the aerosol generating substrate 120 is burnt. Thereby, the temperature of the aerosol generating substrate 120 can be accurately controlled, and there is no need to separately install a temperature measurement assembly in the heating device, effectively reducing production costs.

[0075] In this embodiment, the substrate portion 111 of the aerosol substrate structure 100 in the aerosol generating device 200 has a sealed chamber 111d, and the aerosol generating substrate 120 is provided in the sealed chamber 111d. The aerosol generating substrate 120 can be in direct contact with the inner surface of the sealed chamber 111d.

[0076] By installing the sealed chamber 111d in the substrate portion 111 of the aerosol substrate structure 100 within the aerosol generator 200, the aerosol generating substrate 120 accommodated within the sealed chamber 111d can be sealed, thereby preventing the aerosol generating substrate 120 from falling out of the aerosol substrate structure 100 into the heating device 210 during the use process of the aerosol substrate structure 100. After inhalation is completed, it is possible to take out the residue of the aerosol generating substrate 120 together with the aerosol substrate structure 100, without remaining or adhering in the heating device 210, facilitating the cleaning of the heating device 210.

[0077] Also, during the inhalation process, the airflow does not pass through the aerosol generating substrate 120 within the substrate portion 111, and the decomposition reaction of the aerosol generating substrate 120 is not affected by cold air, the decomposition reaction is stable, contributing to the compatibility of the substance components of the generated aerosol, and further contributing to the improvement of the user's inhalation feeling.

[0078] Since the formed aerosol has the effect of replacing the gas within the sealed chamber 111d, the oxygen content within the substrate portion 111 will decrease as the heating process progresses. At this time, even if the heating temperature is increased, the aerosol generating substrate 120 will not undergo a combustion phenomenon. Therefore, by further increasing the heating temperature of the aerosol generating substrate 120, the fragrant components within the aerosol generating substrate 120 can be sufficiently released, improving the user's inhalation feeling.

[0079] The above are merely embodiments of the present application and do not limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation carried out using the content of the specification and drawings of the present application, or direct or indirect application to other related technical fields, are all similarly included within the scope of patent protection of the present application.

Claims

1. An aerosol substrate structure, comprising: a substrate portion, a duct portion disposed at one end of the substrate portion, and a filter portion disposed at an end of the duct portion remote from the substrate portion; the substrate portion includes an aerosol generating substrate and a heating element, the heating element has a sealed chamber, the aerosol generating substrate is provided in the sealed chamber, and by including a ferromagnetic material having a Curie point temperature in the material of the heating element, the aerosol generating substrate is heated by electromagnetic induction and atomized to form an aerosol; the heating element is a tubular body with a sealed side wall, the end of the tubular body connected to the duct portion is an open end, the end of the tubular body remote from the duct portion is a sealed end, the duct portion has an inhalation passage, and a first intake hole communicating the external atmosphere with the inhalation passage is provided in the duct portion, and the number of the first intake holes is at least one aerosol substrate structure.

2. The aerosol substrate structure according to claim 1, wherein at least the material of the side of the heating element facing the aerosol generating substrate has a ferromagnetic material having a Curie point temperature.

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

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

5. The aerosol substrate structure according to claim 1, wherein the inner surface of the heating element is in direct contact with the aerosol generating substrate.

6. A support medium for supporting the duct portion is provided on the inner wall of the duct portion, and the inside of the support medium is hollow, and the space surrounded by the inner surface of the support medium forms the inhalation passage. The aerosol substrate structure according to claim 1.

7. The aerosol substrate structure according to claim 6, wherein the filter portion communicates with the duct portion and is filled with a filter medium for filtering the aerosol inhaled in the duct portion.

8. The material of the duct portion and / or the filter portion is a paper-based material or a foil-based material, The aerosol substrate structure according to claim 7, wherein the support medium and / or the filter medium is acetate fiber.

9. An aerosol generating device, comprising: an aerosol substrate structure which is the aerosol substrate structure according to claim 1; An aerosol generating device comprising a power supply assembly and a solenoid coil, wherein the power supply assembly is connected to the solenoid coil and is used to supply power to the solenoid coil, and the solenoid coil is used to generate a magnetic field after being energized so that the heating element in the aerosol substrate structure heats and atomizes the aerosol generating substrate by electromagnetic induction.

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