Aerosol Substrate Structure and Aerosol Generator

Abstract

The present application discloses an aerosol substrate structure and an aerosol generating device, the aerosol substrate structure comprising at least a substrate part, a duct part disposed at one end of the substrate part, and a filter part disposed at an end of the duct part remote from the substrate part, the substrate part includes an aerosol-generating substrate and a heating element, the heating element has a sealed chamber, the aerosol-generating substrate is disposed in the sealed chamber, the sealed chamber has a first opening at one end and a sealed end at the other end, the duct part has an intake passage and a plurality of first intake holes, the intake passage communicates with the sealed chamber through the first opening, and the plurality of first intake holes communicate the intake passage with the outside atmosphere. In the aerosol substrate structure and the aerosol generating device of the present application, the residue of the aerosol-generating substrate is less likely to remain in the heating device, and the compatibility of the material components of the generated aerosol is high, so that the user's inhalation feeling is better.

Description

Technical Field

[0001] <Cross - reference to Related Applications> This application claims the priority of Chinese Patent Application No. 2021108019260 filed on July 15, 2021, and all the descriptions thereof are incorporated herein by reference in their entirety.

[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 (such as a product like processed plant leaves) to a heating device. The external heating device can heat the aerosol - generating substrate to a high temperature such that the aerosol - generating substrate can generate the aerosol required by the user without combustion, but not reach the combustion temperature.

[0004] After the aerosol - generating substrate is inhaled, residues are likely to remain or adhere inside the heating device. This makes it difficult to clean the heating device, resulting in a foul smell and abnormal odor, which not only seriously affects the user's inhalation experience, but also affects the heating efficiency and temperature control accuracy, reducing the reliability of the aerosol - generating device and deteriorating the user's smoking 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 substance components. This affects the user's inhalation feeling.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The aerosol substrate structure and the aerosol generating device according to the present application can solve the problems that 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 inhalation feeling of the user is poor.

Means for Solving the Problems

[0006] To solve the above technical problems, the first technical solution used in the present application is as follows. Provide an aerosol substrate structure, the aerosol substrate structure includes at least 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. The aerosol generating substrate is provided in the sealed chamber. One end of the sealed chamber has a first opening, and the other end is a sealed end. The duct portion has an inhalation passage and a plurality of first intake holes. The inhalation passage communicates with the sealed chamber through the first opening. The plurality of first intake holes communicate the inhalation passage with the external atmosphere. The plurality of first intake holes are installed on the side wall of the duct portion and are located at the end close to the substrate portion of the duct portion.

[0007] The plurality of first intake holes are arranged at intervals along the circumferential direction of the duct portion.

[0008] The plurality of first intake holes are located at the end close to the substrate portion of the duct portion. The duct portion further includes a plurality of second intake holes. The plurality of second intake holes are located at the end away from the substrate portion of the duct portion and are used to cool the aerosol that has entered the inhalation passage during the inhalation process.

[0009] The plurality of second intake holes are installed at intervals along the circumferential direction of the duct portion.

[0010] The duct portion includes a plurality of second intake holes. The plurality of second intake holes are located at the end away from the substrate portion of the duct portion. The plurality of second intake hole sets are installed at intervals along the axial direction of the duct portion.

[0011] The pore diameter of the second intake hole is smaller than that of the first intake hole.

[0012] A cooling medium for cooling the aerosol entering the duct portion is installed in the duct portion.

[0013] The cooling medium is installed on the inner wall of the duct portion and is installed avoiding the location of the first intake hole, and the cooling medium penetrates the duct portion along the axial direction of the duct portion, and the inside of the cooling medium is hollow, and the space surrounded by the inner surface of the cooling medium forms an intake passage.

[0014] The cooling medium is filled in the intake passage and is located at the end away from the substrate portion of the duct portion.

[0015] The material of the cooling medium is polylactic acid or acetate fiber.

[0016] The filter portion communicates with the duct portion and is used to filter the aerosol inhaled in the duct portion, and the filter portion is filled with a filtering medium for filtering the aerosol inhaled in the duct portion.

[0017] The shape of the first intake hole is circular, elliptical, rhombic or square.

[0018] The pore diameter of the first intake hole is 0.2 mm to 1 mm.

[0019] The pore diameter of the first intake hole is 0.6 mm to 0.8 mm.

[0020] The duct portion abuts against the end of the substrate portion having the first opening, and the linear distance between the first intake hole and the first opening is 2 mm to 14 mm.

[0021] The linear distance between the first intake hole and the first opening is 4 mm to 10 mm.

[0022] The number of the first intake holes is 4 to 10.

[0023] The first intake hole is circular, the diameter of the circular first intake hole is 0.6 mm to 0.8 mm, and the linear distance between the first intake hole and the first opening is 4 mm to 10 mm.

[0024] In order to solve the above technical problem, the second technical solution adopted by the present application is to provide an aerosol generating device including an aerosol substrate structure and a heating device. The aerosol substrate structure is the above-described aerosol substrate structure, and the heating device includes a power supply assembly and a heating assembly. The power supply assembly is connected to the heating assembly and is used to supply power to the heating assembly. After being energized, the heating assembly causes the heating element in the aerosol substrate structure to generate heat, so as to heat and atomize the aerosol generating substrate to form an aerosol.

Advantages of the Invention

[0025] In the aerosol substrate structure and the aerosol generating device according to the present application, the aerosol substrate structure is provided with a substrate portion, and a sealed chamber is provided in the heating element of the substrate portion. One end of the sealed chamber has a first opening, and the other end is a sealed end. By accommodating the aerosol generating substrate in the sealed chamber, when the aerosol generating substrate is accommodated in the sealed chamber, the aerosol generating substrate is in a sealed state, thereby preventing the aerosol generating substrate from falling out of the aerosol substrate structure during the inhalation process or after the inhalation is completed. At the same time, after the inhalation is completed, it is possible to take out the residue of the aerosol generating substrate together with the aerosol substrate structure, avoid the occurrence of problems such as remaining or adhering to the heating device, and facilitate the cleaning of the heating device. Further, 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, 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. Finally, by installing a duct portion and forming an inhalation passage and a plurality of first intake holes communicating with the sealed chamber in the duct portion, intake air is drawn in through the plurality of first intake holes during the inhalation process, thereby inhaling the aerosol formed in the substrate portion.

Brief Description of the Drawings

[0026] To more clearly explain the technical solutions of the embodiments of the present application, the drawings necessary for the description of the embodiments are briefly described below. Obviously, the drawings described below are only 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

Figure 2

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Figure 5

Figure 6

Modes for Carrying Out the Invention

[0027] 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 part of the embodiments of the present application, not all of them. 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.

[0028] 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 fully understand the present application.

[0029] The terms "first", "second", and "third" of the present invention 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 the present invention, 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 the present invention 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 the present 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 steps or units not selectively listed, or selectively further includes other steps or assemblies specific to these processes, methods, products or devices.

[0030] As used herein, "embodiment" means that a particular feature, structure, or characteristic described with reference to an embodiment may be included in at least one embodiment of the present invention. The appearance of the term at each location 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.

[0031] Hereinafter, the present application will be described in detail by way of embodiments with reference to the drawings.

[0032] Referring to FIG. 1, FIG. 1 provides a cross-sectional view of an aerosol substrate structure 100 according to the first embodiment of the present application. This embodiment provides an aerosol substrate structure 100, and the aerosol substrate structure 100 includes a substrate portion 111, a duct portion 112, and a filter portion 113 that are sequentially connected. 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 is the first opening 111b. Note that when the open end is 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.

[0033] The duct portion 112 is used for inhaling the aerosol formed within the substrate portion 111. The duct portion 112 is provided at the end of the substrate portion 111 having the first opening 111b, and has an inhalation passage 112a inside the duct portion 112. The inhalation passage 112a communicates with the sealed chamber 111d of the substrate portion 111 via the first opening 111b.

[0034] By connecting the filter portion 113 to 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, thereby filtering the aerosol inhaled by the duct portion 112 by the filter portion 113. Specifically, the filter portion 113 may be provided on the side of the duct portion 112 away from the substrate portion 111, and a filter medium 114 may be filled within the filter portion 113. The filter medium 114 can filter tar, suspended particles, etc. within the aerosol, thereby filtering the aerosol inhaled by the duct portion 112 by the filter medium 114 and reducing unnecessary substances in the aerosol inhaled by the user. The material of the filter medium 114 may be acetate fiber. Further, since the end of the filter portion 113 away from the duct portion 112 has a second opening 113a, the internal space of the filter portion 113 communicates with the external atmosphere. The user can inhale the aerosol from the end of the filter portion 113 having the second opening 113a.

[0035] The materials of the duct portion 112 and the filter portion 113 may be paper-based materials or foil-based materials. The heating element 121 can generate an aerosol by heating the aerosol generating substrate 120. The heating element 121 may generate heat by electromagnetic induction or by electric resistance. When the heating element 121 generates heat by electromagnetic induction, 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. Electromagnetic induction causes the ferromagnetic material having the Curie point temperature on the heating element 121 to generate heat, thereby heating and atomizing the aerosol generating substrate 120 inside it to form an aerosol. Specifically, by surrounding a solenoid coil in the circumferential direction on the outer periphery of the substrate portion 111, a magnetic field can be generated when the solenoid coil is energized, thereby causing the ferromagnetic material having the Curie point temperature on the heating element 121 to generate heat. The fact that the material of the heating element may include 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, which means that the heating element 121 heats the aerosol generating substrate 120 as a whole 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 physically combined. That is, the ferromagnetic material does not chemically react with other materials.

[0036] 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 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 directly provided inside the heating element 121, and the heating element 121 can directly heat the aerosol generating substrate 120 inside the heating element 121 by generating heat as a heating member. 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.

[0037] Also, when the material of the heating element 121 is a ferromagnetic material having a Curie point temperature, the heating element 121 is heated by the 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 heating of the aerosol generation 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 generation substrate 120 by electromagnetic induction. 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, and 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, the temperature of the aerosol generation substrate 120 can be accurately controlled, and there is no need to separately install a temperature measurement assembly in the heating device, effectively reducing the production cost.

[0038] 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, and improve the inhalation feeling of the user.

[0039] In one embodiment, the material of 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.

[0040] 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 transmitted to the aerosol generating substrate 120 by the aerosol generating substrate 120 directly contacting the inner surface of the heating element 121. When there is a gap between the aerosol generating substrate 120 and the inner surface of the heating element 121, heat needs to be transmitted from the heating element 121 to the aerosol generating substrate 120 by 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 transmitted through the air medium, and the heat loss in the heat transfer process is further reduced.

[0041] 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.

[0042] 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.

[0043] In this embodiment, as shown in FIG. 1, the arrows in FIG. 1 indicate the flow direction of the air flow. 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 flow cannot enter from the substrate portion 111. In this embodiment, the sealed chamber 111d has a first opening 111b at one end and a sealed end at the other end.

[0044] 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 carrying the aerosol generated in the substrate portion 111 and entering the internal space of the filter portion 113 from the intake passage 112a and flowing out from the second opening 113a of the filter portion 113, thereby realizing the inhalation process of the user.

[0045] The aerosol substrate structure 100 forms a sealed chamber 111d in the substrate portion 111 to accommodate the aerosol generating substrate 120 in the sealed chamber 111d. Thus, 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 out of 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.

[0046] Also, during the inhalation process, the airflow does not pass through the aerosol generating substrate 120 in the substrate portion 111, so the decomposition reaction of the aerosol generating substrate 120 is not affected by the cold air, 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.

[0047] The formed aerosol has the effect of replacing the gas in the sealed chamber 111d, so 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 generate a combustion phenomenon. Therefore, by further increasing the heating temperature of the aerosol generating substrate 120, the aromatic components in the aerosol generating substrate 120 can be sufficiently released to improve the user's inhalation feeling.

[0048] Finally, the duct portion 113 is installed, and by forming an intake passage 112a and a plurality of first intake holes 112b that communicate with the sealed chamber 111d in the duct portion 113, intake air is drawn in through the plurality of first intake holes 112b during the intake process, thereby inhaling the aerosol formed in the substrate portion 111.

[0049] 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 of the annular side wall 111e that is away from the duct portion 112, 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 sealed 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 sealed chamber 111d can make the internal sealing performance of the substrate portion 111 higher, and the bottom wall 111f is also less likely to loosen and fall off during transportation, movement, opening, and other cases where external forces act, preventing the problem that the heating device is difficult to clean due to the aerosol generation substrate 120 falling out. At the same time, it can prevent the problem that the compatibility of the generated aerosol due to the airflow entering the substrate portion 111 is low.

[0050] In the first embodiment, as shown in FIG. 1, the annular side wall 111e and the bottom wall 111f of the substrate portion 111 are integrally formed. The aerosol substrate structure 100 inhales the aerosol by inhaling air from a plurality of first intake holes 112b.

[0051] 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 being open. 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.

[0052] 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.

[0053] 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.

[0054] 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 increase in 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. Of course, 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, avoiding the problems that the duct portion 112 is prone to deformation and collapse due to the overly large hole-opening area, and further blocking the inhalation 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.

[0055] In one embodiment, by setting the linear distance between the first intake holes 112b and the first opening 111b to 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 increase in the amount of aerosol that the user can inhale.

[0056] 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 caused by the aerosol generating device 200 blocking the first intake hole 112b.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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 hole 112c is smaller than that of the first intake hole 112b, most of the airflow enters from the first intake hole 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 inhalation process of the aerosol. Only a very small amount of airflow enters from the second intake hole 112c, and since the aperture diameter of the second intake hole 112c is smaller, the amount of airflow entering from the second intake hole 112c is less, which does not significantly dilute the aerosol and can appropriately lower 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.

[0061] In one embodiment, a plurality of second intake holes 112c are arranged at intervals along the circumferential direction of the duct portion 112. Preferably, the plurality of first exhaust holes and the plurality of second intake holes 112c are both uniformly arranged at intervals along the circumferential direction of the duct portion 112, thereby making the intake of each radial direction of the duct portion 112 more uniform.

[0062] In one embodiment, as shown in FIG. 2, the duct portion 112 includes a plurality of second intake holes 112c, and the plurality of second intake holes 112c are located at an end of the duct portion 112 away from the substrate portion 111. The plurality of second intake holes 112c are arranged at intervals along the axial direction of the duct portion 112. Preferably, the plurality of second intake holes 112c are uniformly arranged at intervals along the axial direction of the duct portion 112. By arranging the plurality of second intake holes 112c at intervals along the axial direction of the duct portion 112, the temperature of the airflow in the duct portion 112 can be further reduced, and the user's inhalation experience can be improved.

[0063] In one embodiment, the plurality of second intake holes 112c are uniformly arranged at the end of the duct portion 112 away from the substrate portion 111. Specifically, 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 the 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 installed at intervals along the axial direction of the duct portion 112, and the plurality of second intake holes 112c in each second intake hole set 112d are installed at intervals along the circumferential direction of the duct portion 112. By installing the plurality of second intake hole sets 112d, the temperature of the airflow in the duct portion 112 can be further reduced, and the inhalation experience of the user can be improved.

[0064] In the second embodiment, as shown in FIG. 2, a plurality of first intake holes 112b and two second intake hole sets 112d are installed on the side wall of the duct portion 112. Both of the two second intake hole sets 112d include a plurality of second intake holes 112c. The plurality of first intake holes 112b are uniformly installed on the side close to the substrate portion 111 of the duct portion 112 in the circumferential direction. The two second intake hole sets 112d are installed on the side close to the filter portion 113 of the duct portion 112. The plurality of second intake holes 112c in each second intake hole set 112d are uniformly installed at intervals along the circumferential direction of the duct portion 112.

[0065] 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. A cooling medium 112e for cooling the aerosol entering the duct portion 112 may be further installed in the duct portion 112 to improve the inhalation experience of the user. The material of the cooling medium 112e may be polylactic acid or acetate fiber.

[0066] 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 may be installed 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.

[0067] 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 location between the duct portion 112 and the filter portion 113. The cooling medium 112e is installed on the entire inner wall 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. During the intake process, when the airflow flows through the intake passage 112a, the cooling medium 112e can cool the airflow from all directions.

[0068] 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. The airflow flows through the cooling medium 112e while carrying the aerosol generated at the substrate portion 111 after entering the intake passage 112a from the first intake hole 112b. 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.

[0069] In one embodiment, in addition to filling the filter medium 114 in the filter portion 113, the cooling medium 112e may be filled, thereby cooling the aerosol flowing in the filter portion 113.

[0070] 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 being used independently.

[0071] 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, and thus blocking the intake passage 112a and affecting the intake process of the aerosol substrate structure 100.

[0072] 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.

[0073] 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 position between the duct portion 112 and the filter portion 113. The support medium 112f is installed on all the inner walls 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 intake 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 intake passage 112a as the cooling medium 112e.

[0074] This application further provides an aerosol generating device 200. Referring to FIG. 6, FIG. 6 is a structural schematic diagram of the aerosol generating device 200 according to this application. The aerosol generating device 200 is used to heat and bake the aerosol matrix structure 100 to generate an aerosol for the user to inhale.

[0075] The aerosol generating device 200 includes a heating device 210 and an aerosol matrix 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 matrix 120 by generating heat in the heating element 121 in the aerosol matrix structure 100 to form an aerosol.

[0076] The aerosol matrix structure 100 in the aerosol generating device 200 can further refer to the structure and function of the aerosol matrix structure 100 according to any one of the above embodiments, and can achieve the same or similar technical effects. Here, a detailed description is omitted.

[0077] The power supply assembly 211 includes a battery (not shown) and a controller (not shown), and the controller is electrically connected to both the battery and the heating assembly 212. The battery is used to heat the aerosol substrate structure 100 by supplying power to the heating assembly 212. 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.

[0078] In the aerosol generating device 200, compared with the prior art in which 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 by a series of media, such as air, a paper material wrapping the aerosol generating substrate 120, in this embodiment, the aerosol generating substrate 120 is provided in the heating element 121, and the heating element 121 can directly heat the aerosol generating substrate 120 inside the heating element 121 by generating heat as a direct heating member. 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.

[0079] 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.

[0080] By installing the sealed chamber 111d in the substrate portion 111 of the aerosol substrate structure 100 in the aerosol generating device 200, the aerosol generating substrate 120 accommodated in the sealed chamber 111d can be made in a sealed state, so that the aerosol generating substrate 120 does not fall 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.

[0081] Also, during the inhalation process, the airflow does not pass through the aerosol generation substrate 120 in the substrate portion 111, the decomposition reaction of the aerosol generation substrate 120 is not affected by the cold air, 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.

[0082] 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 generation substrate 120 will not have a combustion phenomenon. Therefore, by further increasing the heating temperature of the aerosol generation substrate 120, the aromatic components in the aerosol generation substrate 120 can be fully released to improve the user's inhalation feeling.

[0083] Finally, by installing the duct portion 113 and forming an inhalation passage 112a and a plurality of first intake holes 112b communicating with the sealed chamber 111d in the duct portion 113, intake air is drawn in through the plurality of first intake holes 112b during the inhalation process, thereby inhaling the aerosol formed in the substrate portion 111.

[0084] The above is merely an embodiment of the present application and does 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 included in the protection scope of the patent of the present application in the same way.

Claims

1. An aerosol substrate structure, comprising: a substrate portion, a duct portion installed at one end of the substrate portion, and a filter portion installed at an 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, the aerosol generating substrate is provided in the sealed chamber, one end of the sealed chamber has a first opening, and the other end is a sealed end; the duct portion has an inhalation passage and a plurality of first intake holes, the inhalation passage communicates with the sealed chamber through the first opening, and the plurality of first intake holes communicate the inhalation passage with the external atmosphere.

2. The aerosol substrate structure according to claim 1, wherein the plurality of first intake holes are installed on a side wall of the duct portion and are located at an end of the duct portion close to the substrate portion.

3. The aerosol substrate structure according to claim 1, wherein the plurality of first intake holes are arranged at intervals along the circumferential direction of the duct portion.

4. The plurality of first intake holes are located at an end of the duct portion close to the substrate portion, the duct portion further includes a plurality of second intake holes, the plurality of second intake holes are located at an end of the duct portion away from the substrate portion, and are used to cool the aerosol entering the inhalation passage during the inhalation process. The aerosol substrate structure according to claim 1.

5. The aerosol substrate structure according to claim 4, wherein the plurality of second intake holes are arranged at intervals along the circumferential direction of the duct portion.

6. The duct portion includes a plurality of second intake holes, the plurality of second intake holes are located at an end of the duct portion away from the substrate portion, and the plurality of second intake holes are arranged at intervals along the axial direction of the duct portion. The aerosol substrate structure according to claim 4.

7. The aerosol substrate structure according to claim 4, wherein the aperture diameter of the second intake hole is smaller than the aperture diameter of the first intake hole.

8. The aerosol substrate structure according to claim 1, wherein a cooling medium for cooling the aerosol entering the duct portion is installed in the duct portion.

9. The cooling medium is installed on the inner wall of the duct portion and is installed avoiding the location of the first intake hole, and the cooling medium penetrates the duct portion along the axial direction of the duct portion, and the inside of the cooling medium is hollow, and the space surrounded by the inner surface of the cooling medium forms the suction passage. The aerosol substrate structure according to claim 8.

10. The cooling medium is filled in the suction passage, and is located at the end of the duct portion away from the substrate portion. The aerosol substrate structure according to claim 8.

11. The material of the cooling medium is polylactic acid or acetate fiber. The aerosol substrate structure according to claim 8.

12. The filter portion communicates with the duct portion and is used to filter the aerosol inhaled in the duct portion. The filter portion is filled with a filter medium for filtering the aerosol inhaled in the duct portion. The aerosol substrate structure according to claim 1.

13. The shape of the first intake hole is circular, elliptical, rhombic or square. The aerosol substrate structure according to claim 1.

14. The aperture diameter of the first intake hole is 0.2 mm to 1 mm. The aerosol substrate structure according to claim 1.

15. The aperture diameter of the first intake hole is 0.6 mm to 0.8 mm. The aerosol substrate structure according to claim 14.

16. The duct portion abuts on the end of the substrate portion having the first opening, and the linear distance between the first intake hole and the first opening is 2 mm to 14 mm. The aerosol substrate structure according to claim 1.

17. The linear distance between the first intake hole and the first opening is 4 mm to 10 mm. The aerosol substrate structure according to claim 16.

18. The number of the first intake holes is 4 to 10. The aerosol substrate structure according to claim 1.

19. The first intake hole is circular, the diameter of the circular first intake hole is 0.6 mm to 0.8 mm, and the linear distance between the first intake hole and the first opening is 4 mm to 10 mm. The aerosol substrate structure according to claim 18.

20. An aerosol generating device, 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 heating assembly, wherein the power supply assembly is connected to the heating assembly and is used to supply power to the heating assembly, and the heating assembly is used to heat and atomize the aerosol generating substrate to form an aerosol by heating the heating element in the aerosol substrate structure after being energized.

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