Aerosol-generating device and aerosol-generating system

Abstract

The embodiment of the present application provides an aerosol generating device and an aerosol generating system. The aerosol generating device comprises a containing member, a heat exchanger and a heating member. The inside of the containing member forms a containing cavity, which is used for containing at least part of an aerosol generating article. The aerosol generating article can be heated to generate an aerosol. The heat exchanger is a porous structure, which is detachably arranged in the containing cavity and arranged along a first direction with the aerosol generating article. The heat exchanger has an air inlet and an air outlet arranged oppositely. The air inlet is used for introducing external airflow, and the air outlet is used for guiding the airflow after heat exchange with the heat exchanger to the aerosol generating article. The heating member comprises a first heating member and a second heating member. The first heating member is used for heating the aerosol generating article, and the second heating member is used for heating the heat exchanger. The aerosol generating article can be heated in all directions, the preheating time is short, the atomization speed is fast, and the heating is uniform.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an aerosol generating device and an aerosol generating system. Background Technology

[0002] Aerosol generating articles can form aerosols by ignition or by heating without combustion (HNB). In HNB aerosol generating articles, the aerosol generating article is heated by an external heat source to a level sufficient to release aerosols. The aerosol generating article does not burn; instead, it is loaded with a smoke-generating agent. During use, the aerosol generating article is heated to release the smoke-generating agent and form an aerosol.

[0003] In related technologies, during the heating process of aerosol-generating products, the entry of cold air from the bottom of the product leads to uneven heating at the bottom, resulting in poor atomization. Therefore, providing an aerosol generating device with short preheating time, fast atomization speed, and uniform heating is one of the research directions in the industry. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol generating device and aerosol generating system with short preheating time, fast atomization speed, and uniform heating.

[0005] Therefore, a first aspect of the embodiments of this application provides an aerosol generating apparatus, comprising:

[0006] A container having an interior cavity for accommodating at least a portion of an aerosol-generating article, the aerosol-generating article being heatable to generate an aerosol;

[0007] A heat exchanger is detachably disposed in the receiving cavity and arranged along a first direction with the aerosol generating product. The heat exchanger has an air inlet and an air outlet arranged opposite to each other. The air inlet is used to introduce external airflow, and the air outlet is used to guide the airflow after heat exchange with the heat exchanger to the aerosol generating product.

[0008] The heating element includes a first heating element and a second heating element, wherein the first heating element is used at least for heating the aerosol-generating product, and the second heating element is used at least for heating the heat exchanger.

[0009] In some embodiments, the first heating element and the second heating element are an integral structure.

[0010] In some embodiments, the heating element is disposed on the outer side wall and / or inner side wall of the receiving member.

[0011] In some embodiments, the heating element is disposed inside the heat exchanger and the aerosol-generating article.

[0012] In some embodiments, the first heating element and the second heating element are separate structures.

[0013] In some embodiments, the first heating element is disposed on the outer side wall and / or inner side wall of the receiving member.

[0014] In some embodiments, the second heating element is disposed inside the heat exchanger.

[0015] In some embodiments, on a projection plane parallel to the first direction, the orthographic projection of the first heating element overlaps with the orthographic projection of the heat exchanger.

[0016] In some embodiments, on a projection plane parallel to the first direction, the orthographic projection of the second heating element overlaps with the orthographic projection of the aerosol-generating article.

[0017] In some embodiments, the second heating element is a heating tube, and the heating tube has a channel inside;

[0018] A portion of the heat exchanger is disposed outside the heating tube, and another portion is disposed within the channel.

[0019] In some embodiments, the second heating element includes a third heating element, which is at least disposed through the channel.

[0020] In some embodiments, the second heating element is disposed on the outer side wall and / or inner side wall of the receiving member.

[0021] In some embodiments, the heat exchanger comprises at least one of porous ceramic, foamed glass, and foamed metal.

[0022] In some embodiments, the airflow passage of the heat exchanger extends in a direction parallel to the axial direction of the receiving cavity.

[0023] A second aspect of this application provides an aerosol generation system, including an aerosol generation article and the aforementioned aerosol generation device, wherein the aerosol generation article is inserted into the receiving cavity, and the heat exchanger is located between the bottom wall of the receiving cavity and the aerosol generation article.

[0024] The aerosol generating apparatus of this application embodiment incorporates a heat exchanger arranged along a first direction with the aerosol generating product. It includes a first heating element and a second heating element. The first heating element heats at least the aerosol generating product, and the second heating element heats at least the heat exchanger. The heat exchanger's inlet introduces external airflow, which is heated as it flows through the heat exchanger to form a hot airflow. The outlet guides the hot airflow, after heat exchange with the heat exchanger, to the aerosol generating product, which then works in conjunction with the first heating element to heat the aerosol generating product. This achieves omnidirectional heating of the aerosol generating product, resulting in short preheating time, fast atomization speed, and uniform heating. The use of a second heating element to heat the heat exchanger, along with the porous structure of the heat exchanger, improves the heat exchange efficiency of the flowing air. In addition, the porous heat exchanger can absorb the condensate formed after aerosol condensation or the residue generated after heating aerosol products, which can improve the problem of contamination of aerosol generating devices and difficulty in cleaning to a certain extent, and prevent cross-contamination of flavors when extracting aerosol generating products of different flavors. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the aerosol generation system in some embodiments of this application;

[0026] Figure 2 for Figure 1 A sectional view;

[0027] Figure 3 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the first embodiment of this application;

[0028] Figure 4 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the second embodiment of this application;

[0029] Figure 5 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the third embodiment of this application;

[0030] Figure 6 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the fourth embodiment of this application;

[0031] Figure 7 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the fifth embodiment of this application;

[0032] Figure 8 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the sixth embodiment of this application;

[0033] Figure 9 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the seventh embodiment of this application;

[0034] Figure 10 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element and containment in the eighth embodiment of this application;

[0035] Figure 11 This is a cross-sectional view of the connection structure of the aerosol generating article, heat exchanger, heating element, and containment element in the ninth embodiment of this application.

[0036] Explanation of reference numerals in the attached figures

[0037] 10. Heating element; 11. First heating element; 12. Second heating element; 13. Heating tube; 14. Third heating element; 15. Channel; 20. Receptacle; 30. Heat exchanger; 40. Shell; 50. Power supply assembly; 100. Aerosol generating device; 200. Aerosol generating product; 1000. Aerosol generating system. Detailed Implementation

[0038] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0040] In the description of the embodiments of this application, technical terms such as "first," "second," "third," and "fourth" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0041] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. Unless otherwise specified, all embodiments and optional embodiments of this application may be combined with each other to form new technical solutions. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described herein can be combined with other embodiments. Unless otherwise specified, all technical features and optional technical features of this application may be combined with each other to form new technical solutions.

[0042] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0043] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0046] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "projection" refers to an orthographic projection in which parallel projection lines are perpendicular to the projection plane.

[0047] The following is a detailed description of this application.

[0048] like Figure 1 and Figure 2 As shown, this application provides an aerosol generation system 1000, which includes an aerosol generation article 200 and an aerosol generation device 100 provided in any embodiment of this application. The aerosol generation article 200 is inserted into a receiving cavity, and a heat exchanger 30 is located between the bottom wall of the receiving cavity and the aerosol generation article 200.

[0049] It should be noted that the aerosol generating article 200 of this application embodiment can be used for inhalation by ignition or by heating without combustion. In this application embodiment, the aerosol generating article 200 is described as being used for inhalation by heating without combustion.

[0050] Those skilled in the art will understand that the embodiments of this application do not specifically limit the type of aerosol generating device 100. For example, the aerosol generating device 100 may be a medical nebulizer, an air humidifier, or an electronic cigarette, or other device that requires the use of a nebulizer.

[0051] This application provides an aerosol generating device 100. Please refer to [link / reference]. Figures 1 to 2 The aerosol generating apparatus 100 includes a housing 20, a heat exchanger 30, and a heating element 10. The housing 20 has an interior cavity for accommodating at least a portion of the aerosol generating article 200, which can be heated to generate aerosols. The heat exchanger 30 has a porous structure and is detachably disposed within the housing cavity, arranged along a first direction with the aerosol generating article 200. The heat exchanger 30 has an inlet and an outlet opposite to each other; the inlet is used to introduce external airflow, and the outlet is used to guide the airflow after heat exchange with the heat exchanger 30 to the aerosol generating article 200. The heating element 10 includes a first heating element 11 and a second heating element 12; the first heating element 11 is used at least to heat the aerosol generating article 200, and the second heating element 12 is used at least to heat the heat exchanger 30.

[0052] The aerosol generation system 1000 of this application embodiment is applicable to both peripheral heating and central heating methods.

[0053] For example, the aerosol generating device 100 includes a housing 40. The housing 40 is provided with an installation space. The receiving member 20 is at least partially disposed within the installation space.

[0054] The housing 40 can be understood as the main body of the aerosol generating device 100, and the housing 40 constitutes the general framework of the aerosol generating device 100.

[0055] The entire aerosol-generating product 200 may be contained within the containment cavity, or only a portion of the aerosol-generating product 200 may be contained within the containment cavity.

[0056] The structure of the aerosol generating article 200 is not limited. Exemplarily, in some embodiments, the aerosol generating article 200 may include a functional segment and a matrix segment, with the functional segment disposed at one end of the matrix segment along the axial direction. It should be noted that the aerosol generating article 200 relies on the matrix segment to generate aerosols, while the functional segment does not generate aerosols. Of course, in some embodiments, the functional segment may also generate aerosols.

[0057] For example, a functional segment includes a filtering segment.

[0058] The aerosol generated in the heated matrix section can flow through the filtration section, which filters out large particles and unwanted impurities. In other words, the aerosol generated in the heated matrix section is filtered before being drawn in by the user.

[0059] For example, the functional section includes a cooling section. The cooling section can cool the flowing aerosol, improving the "burning" sensation when users inhale the aerosol.

[0060] In embodiments where the functional section includes both a filtration section and a cooling section, the cooling section is located between the matrix section and the filtration section.

[0061] The aerosol generated by the heated aerosol generator 200 first flows through a cooling section for cooling, and then flows through a filtration section to remove large particles and unwanted impurities. In other words, the aerosol generated by the heated aerosol generator 200 is cooled and filtered sequentially through the cooling and filtration sections before being drawn in by the user.

[0062] In other embodiments, the aerosol generating article 200 does not include functional segments.

[0063] The aerosol generating article 200 may also include an outer coating layer, which wraps around the outer periphery of the functional section and the matrix section. Of course, the aerosol generating article 200 may also not have an outer coating layer.

[0064] The material of the aerosol generating article 200 is not limited. Exemplarily, the aerosol generating article 200 includes, but is not limited to, pharmaceuticals, nicotine-containing materials, or nicotine-free materials. In one embodiment, the aerosol generating article 200 may include tobacco materials. In one example, the aerosol generating article 200 is provided with a macroscopic internal airflow channel 15. The aerosol generating article 200 can be manufactured by extrusion, die casting, or other methods, and the internal airflow channel 15 can be directly formed by extrusion, die casting, or other methods. Of course, the aerosol generating article 200 may also have microscopic ventilation holes, which is not limited here.

[0065] The aerosol-generated product 200 includes, but is not limited to, materials used for medical, health, and beauty purposes.

[0066] For example, the aerosol generating apparatus 100 also includes a power supply assembly 50, which is electrically connected to the heating element 10.

[0067] The power supply component 50 is mainly used to supply power to the heating element 10 and to control the opening and closing of the entire aerosol generating device 100.

[0068] For example, the aerosol generating device 100 also includes a suction nozzle for drawing in the generated aerosol.

[0069] Of course, the aerosol generating device 100 may not have a suction nozzle, but instead directly draws the generated aerosol through the housing 40.

[0070] For example, in a cross section perpendicular to the first direction, the cross-sectional shape of the aerosol generating article 200 is circular, elliptical, racetrack-shaped, polygonal, or fan-shaped.

[0071] For example, the first direction can be the height direction of the aerosol generating device 100. For instance... Figure 2 The X shown indicates the first direction.

[0072] For example, the aerosol generating device 100 includes a connector and a receiving member 20 fixed to the connector. The connector is connected to the housing 40, and the receiving member 20 is located within the installation space.

[0073] The type of the receiver 20 is not limited. For example, please refer to... Figures 3 to 5 The container 20 is tubular, and in a cross-section perpendicular to the height direction of the aerosol generating device 100, the cross-sectional shape of the container 20 is circular, elliptical, racetrack-shaped, polygonal, or fan-shaped.

[0074] The containment cavity can be used to contain part of the aerosol-generating product 200 or to contain all of the aerosol-generating product 200.

[0075] The heat exchanger 30 has a porous structure, and the interior of the porous structure has multiple ordered pores and / or multiple disordered pores.

[0076] By setting the heat exchanger 30 to a porous structure, the contact area between the heat exchanger 30 and the airflow is increased, thereby improving the heat exchange efficiency of the heat exchanger 30. In addition, it is beneficial to the conduction of heat between the heat exchangers 30, further improving the heat exchange efficiency of the airflow.

[0077] The heat exchanger 30 is detachably disposed within the housing cavity, facilitating maintenance and replacement of the heat exchanger 30, and allowing for adjustment of the heat exchanger 30 in the aerosol generation device as needed. For example, the pore diameter of the internal holes of the heat exchanger 30 is in the range of 10 μm to 100 μm. The interconnected pores increase the airflow contact area, shorten the heating path, and reduce the volume.

[0078] For example, heat exchanger 30 includes at least one of porous ceramic, foamed glass, and foamed metal.

[0079] Among them, foamed metal refers to special metal materials containing foam pores.

[0080] For example, the heat exchanger 30 is detachably disposed within the receiving cavity. This facilitates the removal, cleaning, or replacement of the heat exchanger 30, improving ease of use.

[0081] The opening size of the receiving cavity allows the heat exchanger 30 to be tilted out under gravity.

[0082] Please see Figures 3 to 5 The heat exchanger 30 is detachably installed at the bottom of the receiving cavity. A first heating element 11 and a second heating element 12 are respectively provided on the outer periphery of the receiving cavity corresponding to the aerosol generating product 200 and the heat exchanger 30. In use, the first heating element 11 and the second heating element 12 heat the aerosol generating product 200 and the heat exchanger 30 respectively. When the user draws air, the external airflow is preheated as it passes through the airflow holes inside the heat exchanger 30 before passing through the aerosol generating product 200, carrying the aerosol from the aerosol generating product 200 out. The heat exchanger 30 shortens the heating path and reduces the volume.

[0083] For example, the airflow passage of the heat exchanger 30 extends in a direction parallel to the axial direction of the receiving cavity.

[0084] This facilitates the heat exchanger 30 in preheating the external airflow, and also allows the external airflow to be preheated before passing through the airflow holes inside the heat exchanger 30 to generate the aerosol product 200.

[0085] It should be noted that there are multiple ways in which external airflow can enter the heat exchanger 30.

[0086] For example, external airflow can enter the heat exchanger 30 through the side wall of the housing 40, or through the bottom wall of the housing 40, or through the top wall of the housing 40, and then enter the heat exchanger 30 through the gap between the outer side wall of the housing 20 and the adjacent components.

[0087] For example, please refer to Figures 3 to 5 On a projection plane parallel to the first direction, the orthographic projection of the first heating element 11 overlaps with the orthographic projection of the aerosol generating product 200, and the orthographic projection of the second heating element 12 overlaps with the orthographic projection of the heat exchanger 30.

[0088] The aerosol generating apparatus 100 of this application embodiment is equipped with a heat exchanger 30, which is arranged along a first direction with the aerosol generating product 200. A heating element 10, including a first heating element 11 and a second heating element 12, is used. The first heating element 11 is used to heat the aerosol generating product 200 at least, and the second heating element 12 is used to heat the heat exchanger 30 at least. The air inlet of the heat exchanger 30 is used to introduce external airflow, which is heated to form a hot airflow as it flows through the heat exchanger 30. The air outlet guides the hot airflow, after heat exchange with the heat exchanger 30, to the aerosol generating product 200, and then, in conjunction with the first heating element 11, heats the aerosol generating product 200, achieving omnidirectional heating of the aerosol generating product 200. This results in short preheating time, fast atomization speed, and uniform heating. By using the second heating element 12 to heat the heat exchanger 30 and by designing the heat exchanger 30 with a porous structure, the heat exchange efficiency of the heat exchanger 30 for the flowing airflow is improved. In addition, the porous heat exchanger 30 can absorb the condensate formed after the aerosol is condensed or the residue generated after the aerosol product 200 is heated, thereby improving to some extent the problem of the aerosol generating device 100 being polluted and difficult to clean, and preventing cross-contamination of flavors when drawing different flavored aerosol products 200.

[0089] It should be noted that there are multiple ways to set up the heating element 10.

[0090] In some embodiments, please refer to Figures 3 to 5 The first heating element 11 and the second heating element 12 are an integral structure.

[0091] This helps reduce the number of parts and improve assembly efficiency.

[0092] In embodiments where the first heating element 11 and the second heating element 12 are integrated, the first heating element 11 and the second heating element 12 work simultaneously, that is, the aerosol generating product 200 and the heat exchanger 30 can be heated at the same time, which facilitates control and simplifies the structure.

[0093] In some embodiments, please refer to Figures 3 to 4 The first heating element 11 and the second heating element 12 are integral structures. The heating element 10 is disposed on the outer side wall and / or inner side wall of the receiving member 20.

[0094] In other words, the heat exchanger 30 and the aerosol generating product 200 are heated in a peripheral manner.

[0095] The heating element 10 can be disposed on the outer side wall of the receiving member 20, or on the inner side wall of the receiving member 20, or both the outer side wall and the inner side wall of the receiving member 20 can be provided with the heating element 10. That is, the heating element 10 is arranged around the heat exchanger 30 and the aerosol generating product 200.

[0096] The heating element 10 can completely enclose the aerosol-generating product 200, preventing localized scorching of the aerosol-generating product 200 and improving the stability of the taste.

[0097] For example, the heating element 10 is a heating film.

[0098] For example, the heating element 10 is annular, and the annular heating element 10 is disposed around the outer side wall and / or inner side wall of the receiving member 20, wrapping around the heat exchanger 30 and the aerosol generating article 200. Heat is transferred from the outside to the inside, which helps to improve heating uniformity. The second heating element 12 heats the heat exchanger 30 located at the bottom of the aerosol generating article 200. The heat exchanger 30 heats the air, and the high-temperature airflow penetrates the aerosol generating article 200 to achieve uniform baking, improving atomization speed and heating uniformity.

[0099] In some embodiments, please refer to Figure 5 The first heating element 11 and the second heating element 12 are an integral structure. The heating element 10 is installed inside the heat exchanger 30 and the aerosol generating product 200.

[0100] In other words, the heat exchanger 30 and the aerosol generating product 200 are centrally heated, with heat conducted from the inside out. The thermal efficiency is as high as 90%, improving the atomization speed.

[0101] For example, the heating element 10 may be needle-shaped, rod-shaped, or sheet-shaped, etc.

[0102] For example, the heating element 10 can be made of ceramic, metal, etc.

[0103] For example, the heating element 10 may be electromagnetic induction heating to heat the heat exchanger 30 and the aerosol generating article 200. The heating element 10 may also be resistance heating.

[0104] For example, the heating element 10 may be sequentially disposed inside the heat exchanger 30 and the aerosol generating article 200.

[0105] In some embodiments, please refer to Figures 6 to 11 The first heating element 11 and the second heating element 12 are separate structures.

[0106] In other words, the working states of the first heating element 11 and the second heating element 12 can be controlled separately. Thus, the first heating element 11 can be controlled to heat the aerosol generating product 200 independently, the second heating element 12 can be controlled to heat the heat exchanger 30 independently, or the first heating element 11 can be controlled to heat the aerosol generating product 200 and the second heating element 12 can be controlled to heat the heat exchanger 30 simultaneously.

[0107] The heating methods of the first heating element 11 and the second heating element 12 can be the same or different.

[0108] The structures of the first heating element 11 and the second heating element 12 can be the same or different.

[0109] The first heating element 11 and the second heating element 12 can be connected in series or in parallel.

[0110] In some embodiments, please refer to Figures 6 to 9 The first heating element 11 and the second heating element 12 are separate structures, with the first heating element 11 disposed on the outer side wall and / or inner side wall of the receiving element 20.

[0111] In other words, the aerosol-generated product 200 is heated from all sides.

[0112] The first heating element 11 can be disposed on the outer side wall of the receiving member 20, or on the inner side wall of the receiving member 20, or both the outer side wall and the inner side wall of the receiving member 20 can be provided with the first heating element 11. That is, the first heating element 11 is arranged around the periphery of the aerosol generating product 200.

[0113] For example, the first heating element 11 is annular, and the annular first heating element 11 is disposed around the outer side wall and / or inner side wall of the receiving member 20, wrapping around the outside of the aerosol generating article 200. Heat is transferred from the outside to the inside, which helps to improve the heating uniformity.

[0114] In some embodiments, please refer to Figures 6 to 9 The first heating element 11 is disposed on the outer side wall and / or inner side wall of the receiving element 20, and the second heating element 12 is disposed inside the heat exchanger 30.

[0115] In other words, the aerosol-generated product 200 is heated from the periphery, while the heat exchanger 30 is heated from the center, with heat being conducted from the inside out.

[0116] For example, the second heating element 12 may be needle-shaped, rod-shaped, or sheet-shaped, etc.

[0117] For example, the material of the second heating element 12 can be ceramic, metal, etc.

[0118] For example, the second heating element 12 may be electromagnetic induction heating to heat the heat exchanger 30. The second heating element 12 may also be resistance heating.

[0119] In some embodiments, please refer to Figures 8 to 9 On a projection plane parallel to the first direction, there is an overlapping area between the orthographic projection of the first heating element 11 and the orthographic projection of the heat exchanger 30.

[0120] In other words, on the projection plane parallel to the first direction, there is an overlapping area between the orthographic projection of the first heating element 11, the orthographic projection of the aerosol generating product 200, and the orthographic projection of the heat exchanger 30. That is, in addition to heating and atomizing the aerosol generating product 200, the first heating element 11 can also heat the heat exchanger 30.

[0121] Since the first heating element 11 can also heat the heat exchanger 30 and heats the heat exchanger 30 in a circumferential heating manner, it works in conjunction with the second heating element 12 to heat the heat exchanger 30 in the center, further improving the heating effect of the heat exchanger 30, thereby improving the heat exchange efficiency between the heat exchanger 30 and the airflow.

[0122] In some embodiments, please refer to Figure 5 On a projection plane parallel to the first direction, there is an overlapping area between the orthographic projection of the second heating element 12 and the orthographic projection of the aerosol generating product 200.

[0123] In other words, on the projection plane parallel to the first direction, there is an overlapping area between the orthographic projection of the second heating element 12, the orthographic projection of the aerosol generating product 200, and the orthographic projection of the heat exchanger 30. That is, in addition to heating the heat exchanger 30, the second heating element 12 can also heat and atomize the aerosol generating product 200.

[0124] Here, the first heating element 11 can simultaneously heat the heat exchanger 30 and the aerosol generating product 200 around its periphery, while the second heating element 12 can simultaneously heat the heat exchanger 30 and the aerosol generating product 200 around its center. Alternatively, the first heating element 11 can only heat the aerosol generating product 200 around its periphery, while the second heating element 12 can simultaneously heat the heat exchanger 30 and the aerosol generating product 200 around its center.

[0125] Since the second heating element 12 can also heat the aerosol generating product 200, and heats the aerosol generating product 200 as the center, it works in conjunction with the first heating element 11 to heat the heat exchanger 30 around the periphery, further improving the atomization efficiency of the aerosol generating product 200.

[0126] In some embodiments, please refer to Figures 10 to 11 The second heating element 12 is a heating tube 13, and the interior of the heating tube 13 has a channel 15.

[0127] In this way, the contact area between the heating tube 13 and the heat exchanger 30 can be increased, further improving the heating effect of the heat exchanger 30, thereby further improving the heat exchange efficiency between the heat exchanger 30 and the airflow.

[0128] Here, the heating tube 13 can be installed only in the heat exchanger 30, or it can be installed in both the heat exchanger 30 and the aerosol generating product 200.

[0129] Here, channel 15 can be left empty; please refer to [link / reference]. Figure 10 In this way, the external airflow can flow through the channel 15 to the aerosol generating product 200, and the heating tube 13 can directly heat the airflow flowing through the channel 15.

[0130] For example, please refer to Figure 11 A portion of the heat exchanger 30 is located outside the heating tube 13, and another portion is located in the channel 15.

[0131] This is beneficial to increase the contact area between the heat exchanger 30 and the heating tube 13 while ensuring the contact area between the heat exchanger 30 and the external airflow. In other words, it can take into account both the heat exchange efficiency between the heating tube 13 and the heat exchanger 30, as well as the heat exchange efficiency between the heat exchanger 30 and the external airflow.

[0132] In some embodiments, please refer to Figure 11 The second heating element 12 includes a third heating element 14, which is at least disposed in the channel 15.

[0133] For example, the third heating element 14 may be needle-shaped, rod-shaped, or sheet-shaped, etc.

[0134] Here, the third heating element 14 can be installed only in the channel 15, or it can be installed in both the channel 15 and the aerosol generating product 200.

[0135] By setting a third heating element 14 and having the third heating element 14 pass through at least the channel 15, the heat exchanger 30 can be heated simultaneously by the third heating element 14 and the heating tube 13, thereby further improving the heating effect of the heat exchanger 30 and thus further improving the heat exchange efficiency between the heat exchanger 30 and the airflow.

[0136] In some embodiments, a first heating element 11 is disposed on the outer side wall and / or inner side wall of the receiving member 20. A second heating element 12 is disposed on the outer side wall and / or inner side wall of the receiving member 20.

[0137] In other words, the heat exchanger 30 and the aerosol-generating product 200 are heated in a peripheral manner.

[0138] The first heating element 11 can be disposed on the outer side wall of the receiving member 20, or on the inner side wall of the receiving member 20, or both the outer and inner side walls of the receiving member 20 can be provided with the first heating element 11. That is, the first heating element 11 is arranged around the periphery of the aerosol generating product 200. The second heating element 12 can be disposed on the outer side wall of the receiving member 20, or on the inner side wall of the receiving member 20, or both the outer and inner side walls of the receiving member 20 can be provided with the second heating element 12. That is, the second heating element 12 is arranged around the periphery of the heat exchanger 30.

[0139] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0140] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An aerosol generating device, characterized in that, include: A container having an interior cavity for accommodating at least a portion of an aerosol-generating article, the aerosol-generating article being heatable to generate an aerosol; A heat exchanger is detachably disposed in the receiving cavity and arranged along a first direction with the aerosol generating product. The heat exchanger has an air inlet and an air outlet arranged opposite to each other. The air inlet is used to introduce external airflow, and the air outlet is used to guide the airflow after heat exchange with the heat exchanger to the aerosol generating product. The heating element includes a first heating element and a second heating element, wherein the first heating element is used at least for heating the aerosol-generating product, and the second heating element is used at least for heating the heat exchanger.

2. The aerosol generating apparatus according to claim 1, characterized in that, The first heating element and the second heating element are an integral structure.

3. The aerosol generating apparatus according to claim 2, characterized in that, The heating element is disposed on the outer side wall and / or inner side wall of the receiving member; and / or, The heating element is installed inside the heat exchanger and the aerosol-generating product.

4. The aerosol generating apparatus according to claim 1, characterized in that, The first heating element and the second heating element are separate structures.

5. The aerosol generating apparatus according to claim 4, characterized in that, The first heating element is disposed on the outer side wall and / or inner side wall of the receiving member; and / or, The second heating element is disposed on the outer side wall and / or inner side wall of the receiving member.

6. The aerosol generating apparatus according to claim 5, characterized in that, The second heating element is disposed inside the heat exchanger; and / or, On a projection plane parallel to the first direction, the orthographic projection of the first heating element overlaps with the orthographic projection of the heat exchanger.

7. The aerosol generating apparatus according to claim 6, characterized in that, On a projection plane parallel to the first direction, there is an overlapping area between the orthographic projection of the second heating element and the orthographic projection of the aerosol-generated product.

8. The aerosol generating apparatus according to claim 6, characterized in that, The second heating element is a heating tube, and the heating tube has a channel inside; A portion of the heat exchanger is disposed outside the heating tube, and another portion is disposed within the channel; and / or, The second heating element includes a third heating element, which is at least disposed through the channel.

9. The aerosol generating apparatus according to any one of claims 1-8, characterized in that, The heat exchanger comprises at least one of porous ceramic, foamed glass, and foamed metal; and / or, The airflow passage of the heat exchanger extends in a direction parallel to the axial direction of the receiving cavity.

10. An aerosol generation system, characterized in that, The invention includes an aerosol generating article and an aerosol generating apparatus according to any one of claims 1-9, wherein the aerosol generating article is inserted into the receiving cavity, and the heat exchanger is located between the bottom wall of the receiving cavity and the aerosol generating article.

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