Aerosol delivery device and aerosol delivery system

Abstract

The application relates to an aerosol delivery device and an aerosol delivery system, the aerosol delivery device comprising a holder part and a base part, the base part being arranged at one end of the holder part, the other end of the holder part being provided with a first opening and a cavity; a heater being arranged in the cavity and configured to provide a heating zone in the cavity; an inner surface of the holder part being provided with a plurality of first convex ribs spaced from each other, an air inlet channel being formed between two adjacent first convex ribs and the heater; the base part being provided with a gas guide groove, the gas guide groove being communicated with the air inlet channel and the cavity; external air flowing into the cavity through the first opening, the air inlet channel and the gas guide groove, and then flowing through an aerosol generating article to form an aerosol for a user to smoke. The aerosol delivery device of the application not only improves the heating efficiency of the heater on the aerosol generating article, but also takes away the heat generated on the outer surface of the heater and reduces the temperature of the heater transmitted to the holder part.

Description

Technical Field

[0001] This application relates to the field of aerosol technology, specifically to aerosol delivery devices and aerosol delivery systems. Background Technology

[0002] In heated non-combustible equipment, the air intake channel is usually set between the heating element and the aerosol generating product, so that external cold air can directly enter between the heating element and the aerosol generating product, providing an air intake channel for the aerosol generating product.

[0003] However, when cold air from outside enters the heating area (the area between the heating element and the aerosol-generating product), it often comes into direct contact with the inner wall of the high-temperature heating element or the outer surface of the aerosol-generating product. This not only affects the time required for the aerosol-generating product to heat up, but also causes a large fluctuation in local temperature, affecting the uniformity and continuity of heating. Summary of the Invention

[0004] This application provides an aerosol delivery device and an aerosol delivery system, which not only improves the heating efficiency of the heater for aerosol-generated articles, but also removes the heat generated on the outer surface of the heater and reduces the temperature transferred from the heater to the support.

[0005] To achieve the above objectives, this application provides the following technical solution: The first aspect of this application provides an aerosol delivery device, including a support assembly, a heater, and an induction coil. The support assembly includes a support portion and a base portion, with the base portion disposed at one end of the support portion and a first opening at the other end of the support portion. The support portion defines a cavity for receiving at least a portion of an aerosol-generating article. The heater at least partially surrounds or defines the cavity for forming a heating zone within the cavity. The induction coil at least partially surrounds the heater for generating an alternating magnetic field within the cavity when an alternating current is applied. The support portion has a plurality of mutually spaced first ribs on its inner surface facing the cavity, with an air inlet channel formed between two adjacent first ribs and the heater. The base portion has an air guide groove or air guide hole that connects the air inlet channel and the cavity. External air sequentially enters the cavity through the first opening, the air inlet channel, and the air guide groove or air guide hole, and flows through the aerosol-generating article to carry the generated aerosol for the user to inhale.

[0006] In one optional embodiment, the cavity includes a first cavity segment, an intermediate cavity segment, and a second cavity segment arranged sequentially from the first opening toward the base portion; a heater is disposed in the second cavity segment, and a first rib is located in the second cavity segment; the inner surface of the support portion is also provided with a plurality of mutually spaced second ribs, the second ribs being located in the intermediate cavity segment, and a first connecting groove is formed between two adjacent second ribs, one end of the first connecting groove being connected to the air intake channel, and the other end being connected to the first opening via the first cavity segment.

[0007] In one optional embodiment, the inner surface of the support portion is further provided with a plurality of mutually spaced third ribs. The third ribs are located in the first cavity segment, and a second connecting groove is formed between two adjacent third ribs. One end of the second connecting groove is connected to the first connecting groove, and the other end extends to the first opening to connect to the outside of the cavity through the first opening.

[0008] In one optional embodiment, the cavity includes a first direction from the first opening toward the base portion and a second direction from the heater toward the inner surface of the support portion, the first direction intersecting the second direction; the first rib, the second rib, and the third rib all extend in the first direction, and the minimum size of the second rib protruding relative to the inner surface of the support portion in the second direction is greater than or equal to the maximum size of the first rib protruding relative to the inner surface of the support portion in the second direction; and / or, the minimum size of the second rib protruding relative to the inner surface of the support portion in the second direction is greater than or equal to the maximum size of the third rib protruding relative to the inner surface of the support portion in the second direction.

[0009] In one optional embodiment, there are multiple air intake channels, which are respectively arranged at intervals around the central axis of the cavity; and / or, the number of first connecting slots corresponds one-to-one with the number of air intake channels, and they are all arranged at intervals around the central axis of the cavity; and / or, the number of second connecting slots corresponds one-to-one with the number of air intake channels, and they are all arranged at intervals around the central axis of the cavity.

[0010] In one optional embodiment, the air intake passage extends along a first direction between two adjacent second ribs and communicates with a first connecting groove between the two adjacent second ribs; and / or, the minimum size of the air intake passage along the second direction is greater than or equal to the maximum size of the first connecting groove along the second direction; and / or, the minimum size of the air intake passage along the second direction is greater than or equal to 0.1 mm.

[0011] In one optional embodiment, the base portion is provided with a mounting groove; the bracket portion is disposed in the mounting groove; the base portion has an end face facing the heater, the end face of the base portion is arranged around the opening of the mounting groove, the end face of the base portion is provided with the air guide groove, the end face of the base portion forms a groove opposite to the first opening, one end of the air guide groove communicates with the groove, and the other end of the air guide groove communicates with the air inlet channel.

[0012] In one optional embodiment, the end face of the base portion is provided with a plurality of air guide grooves, which are respectively arranged at intervals around the central axis of the cavity.

[0013] In one alternative embodiment, the aerosol delivery device further includes an induction heating element that extends from the base toward the cavity and is used to extend into the aerosol generating article when the aerosol generating article is inserted into the cavity, and to generate heat under the action of an alternating magnetic field generated by the induction coil.

[0014] A second aspect of this application provides an aerosol delivery system, including an aerosol generating article and the aforementioned aerosol delivery device, wherein the aerosol generating article is disposed within a heating zone of a cavity.

[0015] In one optional embodiment, the aerosol generating article includes an aerosol generating element and an induction heating element. The induction heating element is disposed inside the aerosol generating element and enters the heating zone of the cavity along with the aerosol generating article, where it is heated under the action of an alternating magnetic field generated by an induction coil.

[0016] In this application, a cavity for receiving aerosol-generated articles is provided in the support section, and a heater surrounding the cavity provides a heating zone to heat the aerosol-generated articles located in the heating zone. Furthermore, multiple spaced-apart first ribs are provided on the inner surface of the support section, with an air inlet channel formed between adjacent first ribs and the heater. This air inlet channel is connected to the cavity via an air guide groove in the base section, allowing external air to flow sequentially through the first opening, the air inlet channel, the air guide groove, the aerosol-generated articles, and the first opening. This ensures that the airflow passes through the air inlet channel close to the outer wall of the heater before contacting the aerosol-generated articles, thus fully utilizing the residual heat emitted by the heater for heat exchange with the cold air. This not only improves the heating efficiency of the heater for the aerosol-generated articles but also removes heat generated on the outer surface of the heater and reduces the temperature transferred from the heater to the support section. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an aerosol delivery device and an aerosol generating article according to an embodiment. Figure 2 According to one embodiment Figure 1 A schematic diagram of the assembly structure of the support assembly, heating assembly, induction coil, and aerosol-generated product of the aerosol delivery device; Figure 3 According to one embodiment Figure 2Another structural schematic diagram of the aerosol delivery device after assembly of the support assembly, heating assembly, induction coil, and aerosol-generated product; Figure 4 According to one embodiment Figure 3 A schematic diagram of the cross-sectional structure along line AA after the assembly of the support assembly, heating assembly, induction coil, and aerosol generation product of the aerosol delivery device. Figure 5 According to one embodiment Figure 1 A schematic diagram of the assembly structure of the support assembly and heater of the aerosol delivery device; Figure 6 According to one embodiment Figure 5 A schematic diagram of the assembly structure of the support and heater of the aerosol delivery device; Figure 7 According to one embodiment Figure 5 A three-dimensional structural diagram of the support assembly of the aerosol delivery device; Figure 8 According to one embodiment Figure 7 Enlarged structural schematic diagram of the support assembly P of the aerosol delivery device; Figure 9 According to one embodiment Figure 2 A schematic diagram of the assembly structure of the support assembly, heater, and induction coil of the aerosol delivery device; Figure 10 According to one embodiment Figure 9 A three-dimensional structural diagram of the base section of the aerosol delivery device; Figure 11 According to one embodiment Figure 10 Another structural schematic diagram of the support section of the aerosol delivery device; Figure 12 According to one embodiment Figure 11 A schematic diagram of the cross-sectional structure of the support section of the aerosol delivery device along line BB; Figure 13 According to one embodiment Figure 9 A three-dimensional structural diagram of the base section of the aerosol delivery device; Figure 14 According to one embodiment Figure 13 Another structural schematic diagram of the base section of the aerosol delivery device; Figure 15 According to one embodiment Figure 6 A three-dimensional structural diagram of the heater in the aerosol delivery device.

[0019] in, 10. Support assembly; 11. Support section; 111. First rib; 112. Second rib; 113. Third rib; 12. Base section; 121. End face; 101. Cavity; 101b. First opening; 101a. Second opening; 1011. First cavity section; 1012. Intermediate cavity section; 1013. Second cavity section; 102. Groove; 103. Mounting groove; 104. Air guide groove; 20. Heating assembly; 21. Heater; 22. Induction heating element; 201. Through hole; L1. Air inlet channel; L2. First connecting groove; L3. Second connecting groove; 30. Induction coil; 40. Aerosol generating product; a. First direction; b. Second direction; 50. Aerosol delivery device; 51. Housing; 501. Insertion hole. Detailed Implementation

[0020] The embodiments of the technical solution of this application will be described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples, and should not be used to limit the scope of protection of this application.

[0021] In heated non-combustible equipment, to prevent flue gas condensation and backflow from damaging internal electronic components, the air inlet channel is typically positioned between the heating element and the aerosol-generating product. This allows external cold air to directly enter between the heating element and the aerosol-generating product to cool the product or assist in airflow circulation. However, when external cold air enters the heating zone, it often directly contacts the high-temperature inner wall of the heating element or the outer surface of the aerosol-generating product. This not only affects the time required for the aerosol-generating product to heat up but also causes significant, momentary fluctuations in localized temperature, impacting the uniformity and sustainability of heating.

[0022] Based on this, combined Figures 1 to 15 As shown, this embodiment provides an aerosol delivery device 50. The aerosol generating article 40 contains an aerosol-forming matrix. Under the heating action of the aerosol delivery device 50, volatile components within the matrix are released, and the volatiles flow with the suction airflow, cool and condense, forming an inhalable aerosol for the user to inhale.

[0023] Combination Figures 1 to 4 As shown, the aerosol delivery device 50 includes a support assembly 10, which includes a support portion 11 and a base portion 12. The support portion 11 is disposed at one end of the base portion 12 and connected to the base portion 12. The other end of the support portion 11 is provided with a first opening 101b. The support portion 11 defines a cavity 101 for receiving at least a portion of the aerosol-generated article 40.

[0024] In addition, the support portion 11 is provided with a second opening 101a at one end facing the base portion 12; the base portion 12 covers the second opening 101a, and the first opening 101b and the second opening 101a are spaced apart.

[0025] In one exemplary embodiment of this application, the support portion 11 may be a heat-insulating support, i.e., made of high-temperature resistant polymer engineering plastic or inorganic ceramics.

[0026] For example, the material of the thermal insulation bracket is selected from any one or more combinations of polyetheretherketone (PEEK), liquid crystal polymer (LCP), alumina ceramic, zirconia ceramic, and synthetic mica board. These materials not only possess electrical insulation properties but also serve as structural support and thermal barrier.

[0027] In one exemplary embodiment of this application, the bracket portion 11 and the base portion 12 are detachably connected, or the bracket portion 11 and the base portion 12 are an integral structure.

[0028] For example, the bracket part 11 and the base part 12 are fixed by means of threaded connection, snap connection or interference fit, and their main function is to close one end of the cavity 101 (i.e. the second opening 101a) and provide bottom limiting support for the aerosol generating product 40.

[0029] Combination Figure 2 and Figure 3 As shown, the aerosol delivery device 50 also includes an induction coil 30. The induction coil 30 is arranged at least partially around the heater 21 and is used to generate an alternating magnetic field within the cavity 101 when an alternating current is applied.

[0030] In one exemplary implementation of this application, combined with Figure 2 and Figure 4 As shown, the aerosol delivery device 50 also includes a heating assembly 20, which includes a heater 21 and an induction heating element 22. The induction coil 30, heater 21, induction heating element 22, and cavity 101 are all coaxially arranged.

[0031] Combination Figure 2 and Figure 4 As shown, heater 21 at least partially surrounds or defines cavity 101 and is configured to provide a heating zone in cavity 101.

[0032] For example, heater 21 is a resistance heater with a cylindrical or tubular structure and is coaxially arranged with cavity 101.

[0033] In one exemplary embodiment of this application, the induction heating element 22 extends from the base portion 12 toward the cavity 101, and is used to extend into the aerosol generating article 40 when it is inserted into the cavity 101. It generates heat under the action of the alternating magnetic field generated by the induction coil 30, and is used to heat the aerosol generating article 40 together with the heater 21. The induction heating element 22 is mainly used to heat the central internal region of the aerosol generating article 40. The induction heating element 22 can be installed by extending upwards into the cavity 101 from the central hole of the base portion 12. In use, the induction heating element 22 is directly inserted into the interior of the aerosol generating article 40.

[0034] For example, the induction heating element 22 is an electromagnetic induction heater, and the specific form of the induction heating element 22 can be a needle-shaped heating element, a sheet-shaped heating element, or a ceramic heating core, etc.

[0035] It should be understood that after the heater 21 and the induction heating element 22 are set, the heater 21 heats the periphery of the aerosol generating product 40, and the induction heating element 22 directly heats the core of the aerosol generating product 40. The synergistic effect of the two improves the heating efficiency and temperature uniformity.

[0036] In another exemplary embodiment of this application, the heating assembly 20 may only include the heater 21, while the aerosol generating article 40 includes an aerosol generating element and an induction heating element 22. The induction heating element 22 is disposed at the internal center of the aerosol generating element and is inserted into or removed from the heating zone within the cavity 101 synchronously with the aerosol generating element. When the aerosol generating article 40 is inserted into the cavity 101, the aerosol generating element, heater 21, induction heating element 22, and cavity 101 are all coaxially arranged, and the induction heating element 22 generates heat under the action of the alternating magnetic field generated by the induction coil 30.

[0037] In one exemplary embodiment of this application, the induction coil 30 is typically made of enameled wire and tightly fitted around the outside of the support portion 11. When an alternating current is applied to the induction coil 30, an alternating magnetic field is generated inside it. This alternating magnetic field passes through the support portion 11 and acts on the induction heating element 22 located at the center of the cavity 101.

[0038] Combination Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 12As shown, the inner surface of the support portion 11 is provided with a plurality of mutually spaced first ribs 111, and an air inlet channel L1 is formed between two adjacent first ribs 111 and the heater 21; the base portion 12 is provided with an air guide groove 104 or an air guide hole, which connects the air inlet channel L1 and the cavity 101; external air flows through the first opening 101b, the air inlet channel L1 and the air guide groove 104 or the air guide hole into the cavity 101, and then flows through the aerosol generating product 40 to form an aerosol for the user to inhale.

[0039] In the above scheme, a cavity 101 for receiving the aerosol-generating product 40 is provided in the support portion 11, and a heater 21 surrounding the cavity 101 provides a heating zone to heat the aerosol-generating product 40 located in the heating zone. Furthermore, multiple spaced-apart first ribs 111 are provided on the inner surface of the support portion 11, forming an air inlet channel L1 between adjacent first ribs 111 and the heater 21. This air inlet channel L1 is connected to the cavity 101 via the air guide groove 104 or air guide hole of the base portion 12, allowing external air to flow through. The airflow follows the path of the first opening 101b, the air inlet channel L1, the air guide groove 104 or the air guide hole, the aerosol generating product 40, and the first opening 101b. This allows the airflow to pass through the air inlet channel L1, which is close to the outer wall of the heater 21, before contacting the aerosol generating product 40. This fully utilizes the residual heat emitted by the heater 21 to exchange heat with the cold air, which not only improves the heating efficiency of the heater 21 for the aerosol generating product 40, but also removes the heat generated on the outer surface of the heater 21 and reduces the temperature transferred from the heater 21 to the support part 11.

[0040] Combination Figure 2 and Figure 12 As shown, the cavity 101 includes a first cavity section 1011, an intermediate cavity section 1012, and a second cavity section 1013 arranged sequentially from the first opening 101b toward the base portion 12; the heater 21 is disposed in the second cavity section 1013, and the first rib 111 is located in the second cavity section 1013. The cavity wall of the second cavity section 1013, two adjacent first ribs 111, and the heater 21 together form an air intake channel L1.

[0041] Furthermore, combined Figure 10 and Figure 12 As shown, the inner surface of the bracket portion 11 is also provided with a plurality of mutually spaced second ribs 112. The second ribs 112 are located in the intermediate cavity section 1012. A first connecting groove L2 is formed between two adjacent second ribs 112. One end of the first connecting groove L2 is connected to the air intake channel L1, and the other end is connected to the first opening 101b through the first cavity section 1011.

[0042] In an exemplary embodiment of this application, the first cavity 1011 is adjacent to the first opening 101b and serves as the primary entry and buffer area for airflow; the second cavity 1013 is adjacent to the second opening 101a and is mainly used to accommodate the heater 21 and form a heat exchange environment; the intermediate cavity 1012 is connected between the first cavity 1011 and the second cavity 1013 and undertakes the function of airflow transition and guidance.

[0043] It should be understood that the presence of the air intake channel L1 allows the gas to flow closely against the outer wall of the heater 21, thereby carrying away the heat conducted from the heater 21 to the inner wall of the support portion 11 through heat exchange, reducing the temperature of the support portion 11 conducted to the outer surface of the housing 51 of the aerosol delivery device 50, and playing a role in heat insulation; and preheating the airflow flowing through this area, thereby improving the heat utilization efficiency of the heater 21.

[0044] In one exemplary implementation of this application, combined with Figure 4 and Figure 12 As shown, after entering through the first opening 101b, the external gas first gathers in the first cavity 1011, and then enters the first connecting groove L2 under the pressure difference. The first connecting groove L2 then straightens and guides the airflow, allowing it to flow smoothly along a predetermined path into the air intake channel L1 of the second cavity 1013. After entering the air intake channel L1, the gas flows along the gap between the heater 21 and the cavity wall of the second cavity 1013, and finally flows to the air guide groove 104 of the base part 12. After passing through the aerosol-generated product 40, it is discharged from the first opening 101b.

[0045] In the above scheme, by dividing the cavity 101 into a first cavity segment 1011, an intermediate cavity segment 1012 and a second cavity segment 1013, and setting a first connecting groove L2 connecting the air intake channel L1 and the first opening 101b in the intermediate cavity segment 1012, not only is the probability of airflow smoothly entering the air intake channel L1 increased, but the risk of uneven heating caused by airflow short circuit or local eddy current is also reduced.

[0046] Combination Figures 5 to 7 as well as Figures 9 to 12 As shown, the inner surface of the support portion 11 is also provided with a plurality of mutually spaced third ribs 113. The third ribs 113 are located in the first cavity section 1011. A second connecting groove L3 is formed between two adjacent third ribs 113. One end of the second connecting groove L3 is connected to the first connecting groove L2, and the other end extends to the first opening 101b so as to connect to the outside of the cavity 101 through the first opening 101b.

[0047] In one exemplary embodiment of this application, the second connecting groove L3 may extend along the axial or helical direction of the first cavity 1011.

[0048] For example, the second connecting groove L3 can be a rectangular groove, a trapezoidal groove, or a semi-circular groove, and the embodiments of this application do not impose any special limitations on it.

[0049] In the above scheme, by setting the second connecting slot L3, the airflow can not only enter the intermediate cavity section 1012 through the first connecting slot L2, but also be directly introduced from the first opening 101b via the second connecting slot L3. This increases the diversity of the air intake path, effectively reduces the resistance of the airflow when entering the cavity 101, and thus improves the overall air intake efficiency. In addition, the setting of the second connecting slot L3 also helps to make the airflow distribution more uniform in the first cavity section 1011, reduce local eddies or dead zones, and increase the probability that the airflow can flow smoothly to the first connecting slot L2.

[0050] Combination Figure 4 , Figure 13 and Figure 12 As shown, the cavity 101 includes a first direction a from the first opening 101b toward the base portion 12 and a second direction b from the heater 21 toward the inner surface of the support portion 11, the first direction a and the second direction b intersect; the first rib 111, the second rib 112 and the third rib 113 all extend along the same axis in the first direction a, and the minimum size of the second rib 112 protruding relative to the inner surface of the support portion 11 in the second direction b is greater than or equal to the maximum size of the first rib 111 protruding relative to the inner surface of the support portion 11 in the second direction b; and / or, the minimum size of the second rib 112 protruding relative to the inner surface of the support portion 11 in the second direction b is greater than or equal to the maximum size of the third rib 113 protruding relative to the inner surface of the support portion 11 in the second direction b.

[0051] Correspondingly, the first cavity 1011 is provided with a third rib 113, the middle cavity 1012 is provided with a second rib 112, and the second cavity 1013 is provided with a first rib 111. After the second cavity 1013 is provided with a first rib 111, the maximum aperture value of the middle cavity 1012 is less than or equal to the minimum aperture value of the first cavity 1011, and less than or equal to the minimum aperture value of the second cavity 1013.

[0052] In one exemplary embodiment of this application, the maximum aperture value of the intermediate cavity 1012 can be matched with the outer diameter of the aerosol generating article 40. Furthermore, the minimum aperture value of the second cavity 1013 can be designed according to the size of the heater 21, ensuring that after the heater 21 is placed in the second cavity 1013, the aperture of the through hole 201 of the heater 21 is consistent with the aperture of the intermediate cavity 1012, so that the wall of the through hole 201 and the cavity wall of the intermediate cavity 1012 have a smooth transition, thereby improving the smoothness of insertion of the aerosol generating article 40 into the intermediate cavity 1012 and the through hole 201.

[0053] For example, the first cavity 1011, the intermediate cavity 1012, and the second cavity 1013 are all cylindrical cavities. The through hole 201 is also a cylindrical hole.

[0054] In the above scheme, the minimum aperture value of the first cavity 1011 is greater than or equal to the maximum aperture value of the intermediate cavity 1012, thereby improving the smoothness of the insertion of the aerosol generating article 40 into the cavity 101 and increasing the air intake. The maximum aperture value of the intermediate cavity 1012 is less than or equal to the minimum aperture value of the first cavity 1011 and less than or equal to the minimum aperture value of the second cavity 1013, which can limit the aerosol generating article 40. Furthermore, after the airflow enters the second cavity 1013 through the intermediate cavity 1012, since the minimum aperture value of the second cavity 1013 is greater than or equal to the maximum aperture value of the intermediate cavity 1012, the tendency of gas to flow back to the intermediate cavity 1012 can be effectively suppressed, increasing the probability of unidirectional stable transmission of airflow from the first cavity 1011 to the second cavity 1013. In addition, the maximum pore size of the intermediate cavity 1012 is smaller than the minimum pore size of the first cavity 1011, which helps to form a stable pressure gradient, thereby enhancing the gas suction effect.

[0055] Combination Figures 4 to 12 As shown, there are multiple air intake channels L1, which are arranged at intervals around the central axis of the cavity 101; and / or, the number of first connecting slots L2 corresponds to the number of air intake channels L1, and they are all arranged at intervals around the central axis of the cavity 101; and / or, the number of second connecting slots L3 corresponds to the number of air intake channels L1, and they are all arranged at intervals around the central axis of the cavity 101.

[0056] In an exemplary embodiment of this application, the included angle between the centers of adjacent first connecting slots L2 is equal. For example, when four first connecting slots L2 are provided, the interval between two adjacent slots is 90°, so that the airflow can enter the intermediate cavity section 1012 from multiple circumferential directions at the same time, reducing the possibility of airflow deflection caused by single-sided air intake.

[0057] In an exemplary embodiment of this application, the distribution pattern of the second connecting groove L3 is the same as that of the air intake channel L1, and the distribution pattern of the first connecting groove L2 is the same as that of the air intake channel L1. The second connecting groove L3 is positioned close to the first opening 101b of the cavity 101, and its function is to uniformly guide the airflow passing through the first opening 101b into the first connecting groove L2.

[0058] In the above scheme, combined with Figures 4 to 8 , Figure 12 and Figure 13As shown, when gas enters from the outside, it is first divided into multiple streams by multiple second connecting channels L3, and then flows into multiple first connecting channels L2 along the axial direction of the cavity 101. Finally, it flows from the first connecting channels L2 into the gas guide channel 104, and then exits the cavity 101 after passing through the aerosol generating product 40 and the first opening 101b. In this process, a uniform distribution of airflow is achieved inside the aerosol delivery device 50, reducing the risk of uneven airflow distribution and uneven local cooling of the aerosol generating product 40 caused by unilateral air intake, thereby improving heating uniformity and optimizing the user's suction experience.

[0059] Combination Figure 10 and Figure 12 As shown, the intake passage L1 extends along the first direction a to the space between two adjacent second ribs 112, and communicates with the first connecting groove L2 between the two adjacent second ribs 112. That is, the intake passage L1 comprises two parts: one part extends between the inner surface of the heater 21 and the support portion, and the other part extends to the space between two adjacent second ribs 112. The dimension of the intake passage L1 along the first direction a between the two adjacent second ribs 112 ranges from 1 to 3 mm.

[0060] Combination Figure 4 and Figure 12 As shown, the minimum dimension of the intake passage L1 along the second direction b is greater than or equal to the maximum dimension of the first connecting groove L2 along the second direction b.

[0061] It should be understood that the dimension of the intake passage L1 along the second direction b refers to the dimension from the inner surface of the bracket portion 11 to the bottom of the first connecting groove L2.

[0062] In an exemplary embodiment of this application, the first direction a is the axial direction of the cavity 101, and the second direction b can be a radial direction perpendicular to the first direction a.

[0063] In an exemplary embodiment of this application, the minimum dimension of the air intake channel L1 along the second direction b is greater than or equal to 0.1 mm. Wherein, if the maximum gap between the inner wall of the through hole 201 and the outer wall of the aerosol generating article 40 is w1, and the minimum dimension of the air intake channel L1 along the second direction b is w2, then w2 is greater than w1.

[0064] For example, the minimum dimension of the intake passage L1 along the second direction b is 0.12mm, 0.15mm, 0.2mm, or 0.25mm. Among them, the minimum dimension of the intake passage L1 along the second direction b is less than 5mm.

[0065] In the above scheme, when the minimum dimension of the air intake channel L1 along the second direction b is greater than or equal to the maximum dimension of the first connecting groove L2 along the second direction b, the possibility of airflow rapidly passing through the outer periphery of the heater 21 can be reduced, allowing more time for the airflow to be heated through the outer periphery of the heater 21 and improving the temperature uniformity of the airflow on the outer periphery of the heater 21. Simultaneously, in heated non-combustible appliances, after the aerosol generating product 40 is assembled into the through hole 201 in the heater 21, the inner wall of the through hole 201 is in contact with the outer wall of the aerosol generating product 40, or the distance is less than 0.1 mm. Therefore, setting the minimum dimension of the air intake channel L1 to be greater than or equal to 0.1 mm allows the airflow to more easily enter the air intake channel L1 first. Then, it flows through the air guide groove 104 to the aerosol generating product 40, and finally flows out from the first opening 101b.

[0066] It should be understood that the dimension of the first connecting groove L2 along the second direction b refers to the dimension from the inner surface of the support portion 11 to the bottom of the first connecting groove L2. Similarly, the dimension of the second connecting groove L3 along the second direction b also refers to the dimension from the inner surface of the support portion 11 to the bottom of the second connecting groove L3.

[0067] In an exemplary embodiment of this application, end face 121 may refer to the surface of the base portion 12 facing the interior of the cavity 101 and the heater 21 after assembly.

[0068] Combination Figure 13 and Figure 14 As shown, the end face 121 of the base portion 12 is provided with an air guide groove 104; the end face of the base portion 12 forms a groove 102 opposite to the first opening 101b, one end of the air guide groove 104 is connected to the groove 102, and the other end is connected to the air intake channel L1.

[0069] It should be understood that the groove 102 between the aerosol generating article 40 and the base portion 12 serves as a gap for airflow. After the airflow passes through the air guide groove 104 and enters the groove 102 at the bottom of the aerosol generating article 40, it enters the aerosol generating article 40 from the bottom surface and finally flows out from the first opening 101b.

[0070] In an exemplary embodiment of this application, the air guide groove 104 may extend radially or spirally along the end face 121, as long as it can connect the groove 102 and the air intake channel L1 at both ends respectively.

[0071] In the above scheme, the mounting groove 103 surrounding the groove 102 and the air guide groove 104 located on the end face 121 are provided, which not only facilitates the alignment and installation of the bracket part 11 and the base part 12, but also allows the two ends of the air guide groove 104 to be connected to the groove 102 and the air intake channel L1 respectively, forming a complete airflow guiding bridge, so as to reduce the probability of airflow stagnation or eddies in the base area.

[0072] Combination Figures 13 to 14 As shown, the base portion 12 is provided with a mounting groove 103, which surrounds the groove 102 and is spaced apart from the groove 102.

[0073] In an exemplary embodiment of this application, the mounting groove 103 is used to provide a insertion and positioning space for the bracket part 11. The shape of the mounting groove 103 is adapted to the lower structure of the bracket part 11. For example, it can be an annular groove. Its cross-sectional dimensions can be set according to the wall thickness and assembly tolerance requirements of the bracket part 11. This embodiment of the application does not impose any special limitations on this.

[0074] In one exemplary embodiment of this application, the bracket portion 11 is disposed within the mounting groove 103. The lower end of the bracket portion 11 extends into the mounting groove 103 and can be fixed to the base portion 12 by means of interference fit, threaded connection, snap-fit ​​connection, or adhesive bonding.

[0075] Combination Figure 13 and Figure 14 As shown, the base portion 12 has an end face 121 facing the heater 21 from the second opening 101a, and the end face 121 of the base portion 12 is arranged around the slot of the mounting groove 103.

[0076] In one exemplary embodiment of this application, the opening of the air guide groove 104 gradually increases from the second opening 101a toward the first opening 101b.

[0077] In the above scheme, the air guide groove 104 is configured as an expanding air guide groove 104, that is, along the direction from the second opening 101a to the first opening 101b, the cross-sectional area of ​​the first opening of the air guide groove 104 gradually increases, thereby improving the intake efficiency when the airflow flows through the groove opening of the air guide groove 104.

[0078] Combination Figure 13 and Figure 11 As shown, the end face 121 of the base portion 12 is provided with a plurality of air guide grooves 104. The plurality of air guide grooves 104 are respectively arranged around the central axis of the cavity 101 at intervals, so that the airflow can enter the air intake channel L1 simultaneously from multiple directions, thereby reducing the airflow imbalance or local high pressure phenomenon caused by a single air guide groove 104.

[0079] For example, the number of air guide grooves 104 can be flexibly set according to the size of the base part 12 and the required air intake flow rate. For example, there can be 2, 3, 4 or more. This application embodiment does not make any special limitation on this.

[0080] In the above scheme, by setting multiple spaced air guide grooves 104, not only can the airflow enter the air intake channel L1 simultaneously from multiple directions, thereby reducing the airflow imbalance or local high pressure caused by a single air guide groove 104, but it can also effectively improve the uniformity of gas introduction, thereby ensuring the consistency of the internal temperature field distribution of the aerosol delivery device 50.

[0081] This embodiment also provides an aerosol delivery system, including an aerosol generating article 40 and the aforementioned aerosol delivery device 50, wherein the aerosol generating article 40 is disposed in the heating zone of the cavity 101.

[0082] In one exemplary implementation of this application, combined with Figure 1 As shown, the aerosol delivery device 50 also includes a housing 51, a circuit board, and a battery. The circuit board, battery, support assembly 10, heating assembly 20, and induction coil 30 are all housed within the housing 51. The battery is connected to the circuit board, which is electrically connected to the heater 21 and the induction coil 30. The battery powers the heater 21 and the induction coil 30.

[0083] In an exemplary embodiment of this application, the housing 51 is further provided with a plug hole 501, which is used to connect the internal space of the housing 51 with the external space and to communicate with the first opening 101b, so that the aerosol generating article 40 can be inserted into the cavity 101 through the plug hole 501. The minimum aperture value of the plug hole 501 is greater than the maximum outer diameter value of the aerosol generating article 40, so that there is an air intake gap between the aerosol generating article 40 and the plug hole 501, and air is introduced into the cavity 101 through the air intake gap.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aerosol delivery device, characterized in that, include: A support assembly includes a support portion and a base portion, the base portion being disposed at one end of the support portion, the other end of the support portion having a first opening, and the support portion defining a cavity for receiving at least a portion of an aerosol-generated article. A heater, at least partially surrounding or defining the cavity, for forming a heating zone within the cavity; as well as An induction coil, at least partially arranged around the heater, is used to generate an alternating magnetic field within the cavity when an alternating current is applied. The support portion is provided with a plurality of mutually spaced first ribs on the inner surface of the cavity, and an air intake channel is formed between two adjacent first ribs and the heater; The base portion is provided with an air guide groove or an air guide hole, and the air guide groove or air guide hole connects the air intake channel and the cavity; External air enters the cavity sequentially through the first opening, the air inlet channel, and the air guide groove or the air guide hole, and flows through the aerosol generating product to carry the generated aerosol for the user to inhale.

2. The aerosol delivery device according to claim 1, characterized in that, The cavity includes a first cavity segment, an intermediate cavity segment, and a second cavity segment arranged sequentially from the first opening toward the base portion; The heater is located in the second cavity section, and the first protruding rib is located in the second cavity section; The inner surface of the bracket is also provided with a plurality of mutually spaced second ribs. The second ribs are located in the intermediate cavity section. A first connecting groove is formed between two adjacent second ribs. One end of the first connecting groove is connected to the air intake channel, and the other end is connected to the first opening through the first cavity section.

3. The aerosol delivery device according to claim 2, characterized in that, The inner surface of the support portion is also provided with a plurality of mutually spaced third ribs. The third ribs are located in the first cavity segment. A second connecting groove is formed between two adjacent third ribs. One end of the second connecting groove is connected to the first connecting groove, and the other end extends to the first opening to connect to the outside of the cavity through the first opening.

4. The aerosol delivery device according to claim 3, characterized in that, The cavity includes a first direction from the first opening toward the base portion and a second direction from the heater toward the inner surface of the support portion, wherein the first direction and the second direction intersect. The first rib, the second rib, and the third rib all extend in the first direction, and the minimum size of the second rib protruding relative to the inner surface of the support portion in the second direction is greater than or equal to the maximum size of the first rib protruding relative to the inner surface of the support portion in the second direction; and / or, the minimum size of the second rib protruding relative to the inner surface of the support portion in the second direction is greater than or equal to the maximum size of the third rib protruding relative to the inner surface of the support portion in the second direction.

5. The aerosol delivery device according to claim 3, characterized in that, The air intake channels are multiple, and the multiple air intake channels are respectively arranged at intervals around the central axis of the cavity; And / or, the number of the first connecting slots and the number of the air intake channels correspond one-to-one, and are respectively arranged at intervals around the central axis of the cavity; And / or, the number of the second connecting slots and the number of the air intake channels correspond one-to-one, and are respectively arranged at intervals around the central axis of the cavity.

6. The aerosol delivery device according to claim 4, characterized in that, The air intake channel extends along the first direction to between two adjacent second ribs and communicates with the first connecting groove between two adjacent second ribs. And / or, the minimum dimension of the air intake passage along the second direction is greater than or equal to the maximum dimension of the first connecting groove along the second direction; And / or, the minimum dimension of the air intake passage along the second direction is greater than or equal to 0.1 mm.

7. The aerosol delivery device according to any one of claims 1-6, characterized in that, The base portion is provided with a mounting groove; The bracket portion is disposed within the mounting groove; The base portion has an end face facing the heater, the end face of the base portion is arranged around the opening of the mounting groove, and the air guide groove is provided on the end face of the base portion; the end face of the base portion forms a groove opposite to the first opening, one end of the air guide groove communicates with the groove, and the other end of the air guide groove communicates with the air inlet channel.

8. The aerosol delivery device according to claim 7, characterized in that, The end face of the base is provided with a plurality of air guide grooves, which are respectively arranged at intervals around the central axis of the cavity.

9. The aerosol delivery device according to claim 1, characterized in that, The aerosol delivery device further includes an induction heating element that extends from the base toward the cavity and is used to extend into the aerosol generating article when the aerosol generating article is inserted into the cavity, and to generate heat under the action of the alternating magnetic field generated by the induction coil.

10. An aerosol delivery system, characterized in that, It includes an aerosol generating article and the aerosol delivery device of claim 1, wherein the aerosol generating article is disposed within the heating zone of the cavity.

11. The aerosol delivery system according to claim 10, characterized in that, The aerosol generating product includes an aerosol generating component and an induction heating element. The induction heating element is disposed inside the aerosol generating component and enters the heating zone of the cavity along with the aerosol generating product, where it generates heat under the action of the alternating magnetic field generated by the induction coil.

Images