Aerosol-generating device and system

Abstract

The utility model discloses an aerosol generating device and system. The aerosol generating device comprises an extractor and a heating body, the extractor comprises a side wall and a bottom wall which are connected with each other, the side wall and the bottom wall jointly define a containing cavity, and the containing cavity is used for containing an aerosol generating product; a first airflow channel is defined on the surface of one side, facing the accommodating cavity, of the side wall, a first air inlet, a second air inlet and a mounting hole are formed in the bottom wall, and the first air inlet is communicated with the first airflow channel; the heating body at least partially penetrates through the mounting hole and extends into the containing cavity, the second air inlet is located between the mounting hole and the side wall, a second airflow channel is formed in the side, away from the containing cavity, of the bottom wall, and the second airflow channel extends from the first air inlet to the second air inlet. The air flow is guided to sequentially flow through the first air flow channel, the first air inlet hole, the second air flow channel and the second air inlet hole to enter the aerosol generating product, so that the intersection of the air flow is concentrated around the heating body, and the condensate accumulation condition at the intersection of the air flow is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of heated non-combustible technology, and more specifically, to an aerosol generating device and system. Background Technology

[0002] Aerosol generating devices are appliances that use a heat-non-combustible technology to heat an aerosol generating matrix to produce aerosols for users to inhale. Aerosol generating devices typically have a containment cavity for holding the aerosol generating matrix and an airflow channel connecting the containment cavity to the atmospheric environment. In related technologies, the aerosol generating matrix is ​​heated in the containment cavity to produce aerosols. Air enters the containment cavity along a first airflow channel and mixes with the aerosols, then flows out of the containment cavity along a second airflow channel and enters the user's respiratory system. However, the ambient temperature is much lower than the temperature inside the containment cavity during heating, and the cold air entering the second airflow channel easily causes condensation to accumulate. Utility Model Content

[0003] This application provides an aerosol generating apparatus and system, which are at least used to solve the problem of condensate accumulation at the intersection of airflows.

[0004] The aerosol generating apparatus of this application includes an extractor and a heating element. The extractor includes a side wall and a bottom wall connected to each other, which together form a receiving cavity for containing the aerosol-generated product. A first airflow channel is defined on the side surface of the side wall facing the receiving cavity. The bottom wall is provided with a first air inlet, a second air inlet, and a mounting hole. The first air inlet communicates with the first airflow channel. The heating element extends into the receiving cavity at least partially through the mounting hole. The second air inlet is located between the mounting hole and the side wall. A second airflow channel is formed on the side of the bottom wall away from the receiving cavity. The second airflow channel extends from the first air inlet to the second air inlet.

[0005] In the aerosol generating apparatus of this application embodiment, when the aerosol generating product is inserted into the receiving cavity, a first airflow channel is formed between the side wall and the aerosol generating product. The heating element is inserted into the receiving cavity through the mounting hole on the bottom wall of the extractor. A second airflow channel is formed on the side of the bottom wall away from the receiving cavity and extends from the first air inlet to the second air inlet, thereby guiding the airflow to flow sequentially through the first airflow channel, the first air inlet, the second airflow channel, and the second air inlet into the aerosol generating product. This concentrates the airflow convergence around the heating element, effectively reducing the accumulation of condensate at the airflow convergence point and also helping to reduce heat loss.

[0006] In addition, the heating element is inserted into the receiving cavity through the mounting hole, and the airflow enters the aerosol generating product through the second air inlet between the mounting hole and the side wall and mixes with the aerosol. This avoids uneven airflow distribution caused by airflow impacting the heating element, and also reduces the risk of clogging the air inlet when condensate or impurities adhere to the surface of the heating element.

[0007] In some embodiments, the aerosol generating device includes a housing with an insertion hole, an extractor disposed within the housing, the insertion hole being opposite to and communicating with a receiving cavity to jointly accommodate the insertion of the aerosol-generated article.

[0008] Thus, by setting the extractor inside the housing, the housing forms an insertion hole that is opposite to and communicates with the receiving cavity. The housing can protect components such as the extractor and heating element. Furthermore, the insertion hole and the extractor can jointly restrict the axial positioning of the aerosol-generated product during insertion, ensuring that the user can insert the aerosol-generated product into the preset position each time, thereby improving heating consistency.

[0009] In some embodiments, the edge of the jack is used to form a gap with the aerosol-generating article inserted into the housing, and the first airflow channel communicates with the gap.

[0010] In this way, a gap is formed between the edge of the socket and the aerosol-generated product inserted into the housing. The first airflow channel is connected to the gap. The socket is used as the inlet for air to enter the housing, which can reduce the number of openings on the housing, improve waterproof and dustproof performance, reduce the wear problem of the hole edge, and also improve the aesthetics of the product.

[0011] In some embodiments, the aerosol generating device includes a horizontal plate located outside the extractor and spaced apart from the bottom wall, and a second airflow channel formed in the spaced area between the horizontal plate and the bottom wall.

[0012] Thus, by forming a second airflow channel in the interval between the horizontal plate and the bottom wall, the suction airflow can flow upward from the bottom of the receiving cavity and mix thoroughly with the aerosol generated in the receiving cavity.

[0013] In some embodiments, the sidewall includes a limiting surface and at least one concave surface. The area enclosed by the limiting surface is used to restrict the position of the aerosol-generated article in the extractor. The concave surface is recessed radially outward relative to the limiting surface and forms a first airflow channel. The edge of the first air inlet is close to or coincides with the concave surface.

[0014] Thus, when the aerosol generating article is inserted into the receiving cavity, the aerosol generating article and the concave surface are radially opposite and spaced apart. The first airflow channel is formed in the area between the concave surface and the aerosol generating article that are opposite and spaced apart. The edge of the first air inlet is close to or coincides with the concave surface. Therefore, the sidewall can play a radial limiting role for the aerosol generating article and at the same time form a first airflow channel with relatively uniform radial dimensions, so that the change in air inlet area is small, thereby improving the accumulation of condensate.

[0015] In some embodiments, when there are multiple concave surfaces, the multiple concave surfaces are distributed at intervals along the circumference of the extractor, and there are multiple first air inlets, and the first air inlets are arranged in a one-to-one correspondence with the concave surfaces.

[0016] Thus, by distributing multiple concave surfaces at intervals along the circumference of the extractor, each first air inlet corresponds to or overlaps with a concave surface, thereby increasing the airflow and minimizing the change in cross-sectional area when the airflow enters the first air inlet from the first airflow channel. Furthermore, the number and size of the concave surfaces can be matched to the type of aerosol-generated product to achieve optimal atomization.

[0017] In some embodiments, the number of first air inlets is even, and the first air inlets are opposite each other in the radial direction of the extractor.

[0018] Thus, by having the first air inlets facing each other in pairs along the radial direction of the extractor, and the multiple first air inlets and multiple concave surfaces distributed at intervals along the circumference of the extractor in a one-to-one correspondence, the uniformity of the airflow in the circumference of the extractor is improved.

[0019] In some embodiments, the mounting hole is located at the center of the bottom wall, and there are two second air inlets, which are located on both sides of the mounting hole.

[0020] Thus, by setting the mounting hole in the center of the bottom wall and placing the two first air inlets on both sides of the mounting hole, the uniformity of the temperature field and airflow distribution of the heating element is improved, thereby improving the heating atomization efficiency.

[0021] In some embodiments, the first air inlet is a square hole; and / or, the second air inlet is a round hole; and / or, the shape of the mounting hole matches the shape of the heating element.

[0022] Thus, by making the first air inlet a square hole, the shape of the first air inlet hole is more matched with the cross-section of the first air inlet channel, thereby reducing the area change of the air intake flow; the second air inlet hole is a round hole, which is conducive to increasing the air intake flow within a limited area; the shape of the mounting hole matches the shape of the heating element, so that the edge of the mounting hole can play a certain limiting role on the heating element and reduce eccentricity.

[0023] The aerosol generation system of this application includes the aerosol generation device and aerosol generation article of any of the above embodiments. The aerosol generation article is inserted into the receiving cavity, and the aerosol generation article and the side wall of the extractor together define the first airflow channel.

[0024] The aerosol generation system of this application includes the aerosol generation apparatus of any of the above embodiments, and therefore has all the beneficial effects of the aerosol generation apparatus of this application.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the aerosol generation system according to an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the aerosol generation system according to an embodiment of this application from a front-view perspective;

[0029] Figure 3 yes Figure 1 A three-dimensional cross-sectional view of the aerosol generation system along the AA direction;

[0030] Figure 4 yes Figure 3 A partially enlarged schematic diagram;

[0031] Figure 5 This is a schematic diagram of the extractor according to an embodiment of this application;

[0032] Figure 6 yes Figure 5 A schematic diagram of the extractor from a top-down view;

[0033] Figure 7 yes Figure 5 A schematic diagram of the extractor from another perspective;

[0034] Figure 8 This is a schematic diagram of the extractor according to another embodiment of this application;

[0035] Figure 9 yes Figure 8 A schematic diagram of the extractor from a top-down view;

[0036] Figure 10 yes Figure 8 A schematic diagram of the extractor from another perspective;

[0037] Figure 11 This is a schematic diagram of the extractor according to another embodiment of this application;

[0038] Figure 12 yes Figure 11 A schematic diagram of the extractor from a top-down view.

[0039] Explanation of key component symbols:

[0040] 1000-Aerosol generation system; 100-Aerosol generation device; 10-Extractor; 101-Containing cavity; 102-Opening; 11-Side wall; 110-First airflow channel; 111-Limiting surface; 112-Concave surface; 1121-End face; 1122-Connecting surface; 113-Protruding surface; 12-Bottom wall; 120-Second airflow channel; 121-First air inlet; 122-Second air inlet; 123-Mounting hole; 124-Upper surface; 125-Lower surface; 1251-Settling groove; 20-Heating element; 30-Shell; 301-Insertion hole; 302-Gap; 31-Outer shell; 311-Top; 312-Bottom; 32-End cap; 33-Bracket; 40-Horizontal plate; 200-Aerosol generation product; 210-Nose; 220-Aerosol generation matrix. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] In the description of this application, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only, and...

[0043] This should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0047] Please see Figure 1 The aerosol generating device 100 is a structure capable of generating aerosols by applying resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasound, or mechanical vibration to the aerosol generating matrix 220. The aerosol generating product 200 includes the aerosol generating matrix 220, which can be heated to generate aerosols. The aerosol generating matrix 220 is a plant flower, stem, or leaf product that has been processed and heated to generate aerosols. The aerosol generating matrix 220 can be in a fully solid, semi-solid, or liquid state. When the aerosol generating matrix 220 is fully solid, it can be prepared using processes such as rolling, slurry preparation, die casting, or extrusion. The aerosol generating matrix 220 can be a cylindrical structure, or a sheet, strip, or block structure.

[0048] Aerosol generating matrix 220 is heated and atomized to form an aerosol. The aerosol can be visible or invisible and may include vapor (e.g., fine particulate matter in a gaseous state, which is typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapor. Users can inhale the aerosol into their mouth, nasal cavity, or lungs through their mouth or nose. Aerosols inhaled into the user's respiratory system can be used for various purposes such as food, medicine, health care, and entertainment.

[0049] Please see Figures 2-4 The aerosol generating apparatus 100 of this application includes an extractor 10 and a heating element 20. The extractor 10 includes a side wall 11 and a bottom wall 12 connected to each other. The side wall 11 and the bottom wall 12 together form a receiving cavity 101 for receiving the aerosol generating article 200. The side wall 11 has a first airflow channel 110 defined on the side surface facing the receiving cavity 101. The bottom wall 12 has a first air inlet 121, a second air inlet 122 and a mounting hole 123. The first air inlet 121 communicates with the first airflow channel 110. The heating element 20 extends into the receiving cavity 101 through the mounting hole 123 at least partially. The second air inlet 122 is located between the mounting hole 123 and the side wall 11. The bottom wall 12 has a second airflow channel 120 formed on the side facing away from the receiving cavity 101. The second airflow channel 120 extends from the first air inlet 121 to the second air inlet 122.

[0050] In the aerosol generating apparatus 100 of this application embodiment, when the aerosol generating product 200 is inserted into the receiving cavity 101, a first airflow channel 110 is formed between the side wall 11 and the aerosol generating product 200. The heating element 20 is inserted into the receiving cavity 101 through the mounting hole 123 on the bottom wall 12 of the extractor 10. A second airflow channel 120 is formed on the side of the bottom wall 12 away from the receiving cavity 101 and extends from the first air inlet 121 to the second air inlet 122, thereby guiding the airflow to flow sequentially through the first airflow channel 110, the first air inlet 121, the second airflow channel 120 and the second air inlet 122 into the aerosol generating product 200, so that the convergence of the airflow is concentrated around the heating element 20, effectively reducing the accumulation of condensate at the airflow convergence point, and also helping to reduce heat loss.

[0051] In addition, the heating element 20 is inserted into the receiving cavity 101 through the mounting hole 123, and the airflow enters the aerosol generating article 200 through the second air inlet 122 between the mounting hole 123 and the side wall 11 and mixes with the aerosol. This avoids uneven airflow distribution caused by the airflow impacting the heating element 20, and also reduces the risk of clogging the air inlet when condensate or impurities adhere to the surface of the heating element 20.

[0052] Specifically, the extractor 10 may be a cylindrical structure, with sidewalls 11 extending circumferentially and closing in the circumferential direction, and bottom wall 12 covering one end of the extractor 10's axial ends. An opening 102 may be formed at the end of the extractor 10 away from the bottom wall 12, through which the aerosol-generated article 200 can be inserted into the receiving cavity 101.

[0053] For ease of explanation, this application defines the axial direction of the extractor 10 as longitudinal, the radial direction of the extractor 10 as transverse, and the direction from the opening 102 to the bottom wall 12 along the axial direction of the extractor 10 as the direction from top to bottom.

[0054] The first air inlet 121, the second air inlet 122, and the mounting hole 123 are all through holes, and they extend from the upper surface 124 to the lower surface 125 of the bottom wall 12 at different positions on the bottom wall 12. The heating element 20 can enter the receiving cavity 101 from bottom to top through the mounting hole 123. When the aerosol generating product 200 is inserted into the receiving cavity 101 and close to the bottom wall 12, the heating element 20 can be inserted into the aerosol generating product 200.

[0055] The first airflow channel 110 extends radially, the second airflow channel 120 extends laterally, and the intersection of the first airflow channel 110 and the second airflow channel 120 is the first air inlet 121.

[0056] Please see Figure 3 and Figure 4 In some embodiments, the aerosol generating device 100 includes a housing 30, the housing 30 having an insertion hole 301, the extractor 10 being disposed within the housing 30, the insertion hole 301 being opposite to and communicating with the receiving cavity 101 to jointly accommodate the insertion of the aerosol generating article 200.

[0057] Thus, by setting the extractor 10 inside the housing 30, the housing 30 forms an insertion hole 301 that is opposite to and communicates with the receiving cavity 101. The housing 30 can protect components such as the extractor 10 and the heating element 20. Furthermore, the insertion hole 301 and the extractor 10 can jointly restrict the axial positioning of the aerosol generating product 200 when it is inserted, so that the user can insert the aerosol generating product 200 into the preset position each time, thereby improving heating consistency.

[0058] Specifically, the housing 30 includes an outer shell 31 and an end cap 32. The outer shell 31 forms the outer surface of the aerosol generating device 100. The outer shell 31 includes a top 311 and a bottom 312 that are vertically opposite each other. The end cap 32 is disposed inside the outer shell 31 and located between the top 311 and the opening 102 of the extractor 10. The insertion hole 301 can pass through the top 311 and the end cap 32 of the outer shell 31 sequentially from top to bottom. The extractor 10 is disposed near the top 311. The extractor 10 can be coaxial with the insertion hole 301, and the opening 102 of the extractor 10 can be axially aligned with the insertion hole 301.

[0059] The aerosol generating matrix 220 can be liquid, semi-solid, or all-solid. When the aerosol generating matrix 220 is all-solid, it can be directly inserted into the insertion hole 301 and the receiving cavity 101. The aerosol generating product 200 can include a carrier such as an atomizing chamber or atomizing bullet, and the liquid or semi-solid aerosol generating matrix 220 can be loaded onto the carrier and inserted into the receiving cavity 101 together.

[0060] The shape and size of the insertion hole 301 correspond to the cross-sectional shape and size of the aerosol generating article 200 (or its carrier). The size of the insertion hole 301 can be slightly larger than the cross-sectional size of the aerosol generating article 200 and slightly smaller than the opening 102 of the extractor 10, so that the aerosol generating article 200 can more easily pass through the insertion hole 301 into the receiving cavity 101. The cross-sectional shape of the aerosol generating article 200 (or its carrier) can be circular, elliptical, triangular, quadrilateral, pentagonal, hexagonal, or other irregular shapes, and this application is not limited in this regard. For example, the aerosol generating article 200 can be a cylindrical structure. Accordingly, the insertion hole 301 is a circular hole with a diameter slightly larger than that of the aerosol generating article 200, and the extractor 10 is also cylindrical with an inner diameter slightly larger than that of the insertion hole 301.

[0061] Optionally, the aerosol generating device 100 also includes a bracket 33 disposed within the housing 31, which can be fixedly connected to the housing 31 and is used to support and fix the extractor 10.

[0062] Please see Figure 4 In some embodiments, the edge of the insertion hole 301 is used to form a gap 302 with the aerosol generating article 200 inserted into the housing 30, and the first airflow channel 110 communicates with the gap 302.

[0063] Thus, a gap 302 is formed between the edge of the insertion hole 301 and the aerosol generating product 200 inserted into the housing 30. The first airflow channel 110 is connected to the gap 302. The insertion hole 301 is used as the inlet for air to enter the housing 30, thereby reducing the number of openings on the housing 30, improving waterproof and dustproof performance, reducing the wear problem of the hole edge, and also improving the aesthetics of the product.

[0064] Specifically, the insertion hole 301 penetrates the top 311 and the end cap 32, and the edge of the insertion hole 301 includes at least the edges formed by the insertion hole 301 penetrating the outer shell 31 and the end cap 32 respectively. The top 311 and the end cap 32 are radially spaced from the outer peripheral surface of the aerosol generating article 200 to form a gap 302. The gaps 302 formed between the top 311 and the end cap 32 and the aerosol generating article 200 can be of different sizes, but their radial dimensions remain similar. The end cap 32 can form a short sleeve structure and be fixed above the opening 102 of the extractor 10. The gap 302 formed between the inner peripheral surface of the end cap 32 and the outer peripheral surface of the aerosol generating article 200 is opposite to and communicates with the opening 102 of the extractor 10. The first airflow channel 110 extends axially from the opening 102 along the extractor 10 to the first air inlet 121 on the bottom wall 12.

[0065] Users can inhale through the nozzle 210 at the top of the aerosol generating product 200. When the user inhales, the air outside the housing 30 enters the first airflow channel 110 through the gap 302, and then enters the aerosol generating product 200 in sequence along the first airflow channel 110, the second airflow channel 120 and the second air inlet 122. The airflow penetrates the aerosol generating matrix 220 and mixes with the aerosol in the receiving cavity 101. The airflow mixed with the aerosol then enters the user's respiratory system through the nozzle 210.

[0066] Please see Figure 4 In some embodiments, the aerosol generating device 100 includes a horizontal plate 40 located outside the extractor 10 and spaced apart from the bottom wall 12, and a second airflow channel 120 is formed in the spaced area between the horizontal plate 40 and the bottom wall 12.

[0067] Thus, by forming a second airflow channel 120 in the interval between the horizontal plate 40 and the bottom wall 12, the suction airflow can flow upward from the bottom of the receiving cavity 101 and mix thoroughly with the aerosol generated in the receiving cavity 101.

[0068] Specifically, the horizontal plate 40 can be horizontally mounted inside the housing 30 and spaced apart from the bottom wall 12 along the axial direction of the extractor 10. The second airflow channel 120 is a transverse channel between the first air inlet 121 and the second air inlet 122. The longitudinal projection of the bottom wall 12 onto the horizontal plate 40 can completely fall within the range of the horizontal plate 40, so that the first air inlet 121 can directly communicate with the second airflow channel 120 along the axial direction of the extractor 10.

[0069] Optionally, please refer to Figure 4 , Figure 7 and Figure 10The horizontal plate 40 may be a straight plate, or at least the side of the horizontal plate 40 facing the bottom wall 12 may be a straight surface. The lower surface 125 of the bottom wall 12 faces away from the receiving cavity 101, and the lower surface 125 may partially sink towards the receiving cavity 101 to form a sink 1251. The first air inlet 121 and the second air inlet 122 are both formed on the bottom surface of the sink 1251, and the bottom surface of the sink 1251 is spaced from the side of the horizontal plate 40 facing the bottom wall 12 to form a second airflow channel 120. The portion of the lower surface 125 outside the sink 1251 may abut against the horizontal plate 40 to increase structural stability.

[0070] Please see Figures 4-6 In some embodiments, the sidewall 11 includes a limiting surface 111 and at least one concave surface 112. The area enclosed by the limiting surface 111 is used to limit the position of the aerosol-generating article 200 in the extractor 10. The concave surface 112 is recessed radially outward relative to the limiting surface 111 and forms a first airflow channel 110. The edge of the first air inlet 121 is close to or coincides with the concave surface 112.

[0071] Thus, when the aerosol generating article 200 is inserted into the receiving cavity 101, the aerosol generating article 200 and the concave surface 112 are radially opposite and spaced apart. The first airflow channel 110 is formed in the area between the concave surface 112 and the aerosol generating article 200, which are opposite and spaced apart. The edge of the first air inlet 121 is close to or overlaps with the concave surface 112. Therefore, the sidewall 11 can play a radial limiting role for the aerosol generating article 200, and at the same time form a first airflow channel 110 with relatively uniform radial dimensions, so that the change in air inlet area is small, thereby improving the accumulation of condensate.

[0072] Specifically, the limiting surface 111 can surround the aerosol generating article 200 circumferentially. The limiting surface 111 can contact the aerosol generating article 200 or maintain a very small gap from it. The concave surface 112 includes an end face 1121 and two connecting surfaces 1122. The two connecting surfaces 1122 are opposite to each other circumferentially of the aerosol generating article 200 and are respectively connected to the limiting surface 111. The connecting surfaces 1122 extend radially away from the limiting surface 111, and their two ends in the radial direction are respectively connected to the limiting surface 111 and the end face 1121. The end face 1121 is opposite to and spaced from the aerosol generating article 200 radially from the extractor 10. The end face 1121 can be a plane, an arc surface, or an irregular curved surface.

[0073] The connecting surface 1122 and the end face 1121 together form a first airflow channel 110. The connecting surface 1122 and the end face 1121 can extend unidirectionally in the axial direction of the extractor 10, thereby forming a first airflow channel 110 extending in a single direction, and the cross-sectional area of ​​the first airflow channel 110 perpendicular to the airflow direction is a constant value.

[0074] Optionally, such as Figure 6 As shown, from a top-down view, the end face 1121 and the limiting face 111 fall on two concentric circles respectively. The diameter of the concentric circle where the end face 1121 is located is larger than the diameter of the concentric circle where the limiting face 111 is located, and the central angle opposite to the end face 1121 is offset from the central angle opposite to the limiting face 111.

[0075] Optionally, such as Figure 9 As shown, when there are multiple concave surfaces 112, the central angles opposite to the end face 1121 and the central angles opposite to the limiting surface 111 are staggered.

[0076] Optionally, the first air inlet 121 is located within the longitudinal projection range of the extended surfaces of the concave surface 112 and the limiting surface 111 onto the bottom wall 12. For example... Figure 7 and Figure 12 As shown, one side edge of the first air inlet 121 is located on the line connecting the end face 1121 and the bottom wall 12. Figure 9 As shown, the three sides of the first air inlet 121 coincide with the two connecting surfaces 1122 and the concave surface 112, respectively. In this way, the cross-sectional area changes little when the airflow enters the first air inlet 121 from the first airflow channel 110.

[0077] Please see Figure 4 , Figure 8 and Figure 9 In some embodiments, when there are multiple concave surfaces 112, the multiple concave surfaces 112 are distributed at intervals along the circumference of the extractor 10, and the number of first air inlets 121 is multiple and the first air inlets 121 are arranged in a one-to-one correspondence with the concave surfaces 112.

[0078] Thus, by distributing multiple concave surfaces 112 at intervals along the circumference of the extractor 10, each first air inlet 121 is close to or overlaps with a corresponding concave surface 112, thereby increasing the airflow and minimizing the change in cross-sectional area when the airflow enters the first air inlet 121 from the first airflow channel 110. Furthermore, the number and size of the concave surfaces 112 can be matched to the type of aerosol generating article 200 to achieve optimal atomization.

[0079] Specifically, the surface of the sidewall 11 facing the receiving cavity 101 may have multiple concave surfaces 112, which are distributed at intervals along the circumference of the extractor 10. To improve the uniformity of airflow distribution, the multiple concave surfaces 112 may be distributed at equal intervals along the circumference of the extractor 10. For example, the number of concave surfaces 112 may be one, two, three, five, eight, etc.

[0080] Optionally, the surface of the sidewall 11 facing away from the receiving cavity 101 may form a protruding surface 113 corresponding to the concave surface 112, so that the wall thickness of the sidewall 11 of the extractor 10 is more uniform. The protruding surface 113 can also play a limiting role during the installation of the extractor.

[0081] Only one first air inlet 121 is provided within the longitudinal projection range of the extended surface of each concave surface 112 and the limiting surface 111 on the bottom wall 12, and at least one side of the first air inlet 121 is located on the concave surface 112, so that the cross-section of the first airflow channel 110 and the shape and size of the first air inlet 121 are relatively close, thereby reducing the change in the cross-sectional area of ​​the airflow.

[0082] Please see Figure 4 , Figure 9 and Figure 12 In some embodiments, the number of first air inlets 121 is even, and the first air inlets 121 are opposite each other in the radial direction of the extractor 10.

[0083] Thus, the first air inlets 121 are arranged in pairs along the radial direction of the extractor 10, and the multiple first air inlets 121 and multiple concave surfaces 112 are distributed in a one-to-one correspondence along the circumferential direction of the extractor 10, thereby improving the uniformity of the airflow in the circumferential direction of the extractor 10.

[0084] Specifically, the number of first air inlets 121 can be two, four, ten, etc. The first air inlets 121 are the intersection of the first airflow channel 110 and the second airflow channel 120. The number, size and distribution position of the first air inlets 121 can be configured differently according to the type of aerosol generating matrix 220 and the specifications of the heating element 20 in the aerosol generating product 200.

[0085] Please see Figure 6 , Figure 9 and Figure 12 In some embodiments, the mounting hole 123 is located at the center of the bottom wall 12, and there are two second air inlets 122, which are located on both sides of the mounting hole 123.

[0086] Thus, by setting the mounting hole 123 at the center of the bottom wall 12, and the two first air inlets 121 being located on both sides of the mounting hole 123, the uniformity of the temperature field and airflow distribution of the heating element 20 is improved, thereby improving the heating atomization efficiency.

[0087] Specifically, the mounting hole 123 being located at the center of the bottom wall 12 means that the geometric center of the bottom wall 12 falls within the range of the mounting hole 123 and is close to or coincides with the center of the mounting hole 123. For example, the mounting hole 123 is racetrack-shaped, the bottom wall 12 is an irregularly shaped wall surface with central symmetry characteristics, and the center of the mounting hole 123 coincides with the center of symmetry of the bottom wall 12.

[0088] The second air inlet 122 is disposed between the mounting hole 123 and the side wall 11, the first air inlet 121 is disposed close to the side wall 11, and the second air inlet 122 is located radially between the first air inlet 121 and the mounting hole 123. The second air inlet 122 may be distributed radially on both sides of the mounting hole 123 of the extractor 10.

[0089] For example, such as Figure 9 As shown, the first air inlet 121 and the second air inlet 122 are staggered along the circumference.

[0090] For example, such as Figure 12 As shown, there are two first air inlets 121, which are opposite each other along the radial direction of the extractor 10. The two second air inlets 122 are located on the line connecting the center of the mounting hole 123 and the two first air inlets 121, respectively.

[0091] In other embodiments, there may be multiple second air inlets 122. These multiple second air inlets 122 may be distributed on the bottom wall 12, staggered from the first air inlet 121 and the mounting hole 123, and regularly dispersed around the axis of the aerosol-generated product 200.

[0092] Please see Figure 6 , Figure 9 and Figure 12 In some embodiments, the first air inlet 121 is a square hole; and / or, the second air inlet 122 is a round hole; and / or, the shape of the mounting hole 123 matches the shape of the heating element 20.

[0093] Thus, by making the first air inlet 121 a square hole, the shape of the first air inlet 121 is more matched with the cross-section of the first air intake channel, thereby reducing the area change of the air intake airflow; the second air inlet 122 is a round hole, which is conducive to increasing the air intake airflow within a limited area; the shape of the mounting hole 123 matches the shape of the heating element 20, so that the edge of the mounting hole 123 can play a certain limiting role on the heating element 20 and reduce eccentricity.

[0094] Specifically, the first air inlet 121 can be an approximately rectangular or square through-hole. For example... Figure 6 As shown, one side edge of the first air inlet 121 is located at the connection between the end face 1121 and the bottom wall 12, and this side edge is arc-shaped. The first air inlet 121 is generally a rectangular hole. Figure 9 and Figure 10 As shown, the lengths of the connecting surface 1122 and the end face 1121 are close, and the three sides of the first air inlet 121 overlap with the two connecting surfaces 1122 and the end face 1121 respectively. The side of the first air inlet 121 that overlaps with the end face 1121 is arc-shaped, and the first air inlet 121 is roughly square in shape.

[0095] The second air inlet 122 is a round hole that can match the shape of the outer periphery of the bottom wall 12, so that airflow can enter the receiving cavity 101 from the outside of the bottom wall 12 through the second air inlet 122.

[0096] The heating element 20 can have various structures such as sheet, mesh, needle, cylindrical, and block. For example, the heating element 20 has a sheet structure, a square cross-section, and an elongated mounting hole 123.

[0097] In other embodiments, the second air inlet 122 may also be a square hole or other irregularly shaped hole.

[0098] Please see Figure 1 and Figure 2 The aerosol generation system 1000 of this application includes an aerosol generation device 100 and an aerosol generation article 200 of any of the above embodiments. The aerosol generation article 200 is inserted into the receiving cavity 101, and the aerosol generation article 200 and the side wall 11 of the extractor 10 together define a first airflow channel.

[0099] The aerosol generation system 1000 of this application includes the aerosol generation apparatus 100 of any of the above embodiments, and therefore has all the beneficial effects of the aerosol generation apparatus 100 of this application.

[0100] Optionally, the aerosol generating product 200 is equipped with a suction nozzle 210 for users to draw in the aerosol. The suction nozzle 210 is connected to the aerosol generating matrix 220. After the aerosol generating product 200 is inserted into the housing, the user can draw in the aerosol through the suction nozzle, thus realizing plug-and-play functionality and improving convenience.

[0101] Optionally, the nozzle 210 can be located at the upper end of the aerosol generating article 200, and when the aerosol generating article 200 is inserted into the receiving cavity 101, the nozzle 210 can be exposed outside the housing 30.

[0102] The aerosol generating device 100 may further include a power supply circuit (not shown) and a control component (not shown). The power supply circuit is used to power the heating element 20, which is capable of converting electrical energy into heat energy. The control component is electrically connected to the power supply circuit and / or the heating element 20 and is used to control the heating process of the heating element 20.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some implementations," "some embodiments," "exemplary," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, characterized in that, include: An extractor, the extractor including interconnected sidewalls and bottom wall, the sidewalls and bottom wall together forming a receiving cavity for containing aerosol-generated products; The sidewall facing the cavity defines a first airflow channel, and the bottom wall is provided with a first air inlet, a second air inlet, and a mounting hole, wherein the first air inlet communicates with the first airflow channel. A heating element extends at least partially through the mounting hole into the receiving cavity. A second air inlet is located between the mounting hole and the side wall. A second airflow channel is formed on the side of the bottom wall opposite to the receiving cavity, and the second airflow channel extends from the first air inlet to the second air inlet.

2. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating device includes a housing with an insertion hole, and the extractor is disposed inside the housing. The insertion hole is opposite to and communicates with the receiving cavity to jointly accommodate the insertion of the aerosol generating product.

3. The aerosol generating apparatus according to claim 2, characterized in that, The edge of the insertion hole is used to form a gap with the aerosol generating article inserted into the housing, and the first airflow channel communicates with the gap.

4. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating device includes a horizontal plate located outside the extractor and spaced apart from the bottom wall, and the second airflow channel is formed in the interval between the horizontal plate and the bottom wall.

5. The aerosol generating apparatus according to claim 1, characterized in that, The sidewall includes a limiting surface and at least one concave surface. The area enclosed by the limiting surface is used to restrict the position of the aerosol-generated product in the extractor. The concave surface is recessed radially outward relative to the limiting surface and encloses the first airflow channel. The edge of the first air inlet is close to or coincides with the concave surface.

6. The aerosol generating apparatus according to claim 5, characterized in that, When there are multiple concave surfaces, the multiple concave surfaces are distributed at intervals along the circumference of the extractor, and there are multiple first air inlets, and the first air inlets are arranged in a one-to-one correspondence with the concave surfaces.

7. The aerosol generating apparatus according to claim 1, characterized in that, The number of the first air inlets is even, and the first air inlets are opposite each other in the radial direction of the extractor.

8. The aerosol generating apparatus according to claim 1, characterized in that, The mounting hole is located at the center of the bottom wall, and there are two second air inlets, which are located on both sides of the mounting hole.

9. The aerosol generating apparatus according to claim 1, characterized in that, The first air inlet is a square hole; and / or the second air inlet is a round hole; and / or the shape of the mounting hole matches the shape of the heating element.

10. An aerosol generation system, characterized in that, include: The aerosol generating apparatus according to any one of claims 1-9; and An aerosol generating article is inserted into the receiving cavity, and the aerosol generating article and the side wall of the extractor together define the first airflow channel.

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