Aerosol generating device and heating module

Abstract

The present application relates to an aerosol generating device and a heating module. The aerosol generating device comprises a holder; and a heating module, which is detachably connected to the holder, comprises a first accommodating cavity for accommodating at least part of an aerosol generating product, and further comprises a heating assembly arranged upstream of the first accommodating cavity in an airflow direction, wherein the heating assembly comprises a perforated component; one or more air holes in fluid communication with the first accommodating cavity are formed in the perforated component; the end of each air hole adjacent to the first accommodating cavity is an air output end, and the opposite end thereof is an air input end; the heating assembly is configured to heat the air flowing through the air hole; and the air input ends of at least some of the air holes are configured to be exposed when the heating module is removed from the holder.

Description

Aerosol generating device and heating module

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on August 11, 2023, with application number 202311021130.9 and application name “Aerosol Generating Device and Heating Module”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the field of aerosol generation technology, and in particular to an aerosol generating device and a heating module. Background Art

[0004] An aerosol-generating device (AGD) is a device that enables an aerosol product (e.g., a cigarette, cigar, etc.) to generate aerosol without burning. The device includes a heating component and a power supply component electrically connected to the heating component to provide power to the heating component. In some aerosol-generating devices, the heating component is used to heat air, thereby generating hot air, which then flows into the aerosol product to heat the aerosol product. However, existing heating components for heating air are prone to clogging.

[0005] Application Contents

[0006] The embodiments of the present application provide an aerosol generating device and a heating module, which are easy to clean or replace the heating module with a heating component, helping to extend the service life of the aerosol generating device and improve user experience.

[0007] The present invention provides an aerosol generating device, comprising:

[0008] stents; and

[0009] a heating module removably connected to the support, the heating module comprising a first receiving cavity for receiving at least a portion of the aerosol-generating article, and a heating assembly disposed upstream of the first receiving cavity along the airflow direction;

[0010] The heating assembly includes a porous member having one or more air holes in fluid communication with the first accommodating cavity, wherein one end of the air hole adjacent to the first accommodating cavity is an air outlet end, and the other end opposite thereto is an air inlet end, and the heating assembly is configured to heat air flowing through the air holes;

[0011] Wherein, at least part of the air inlet ends of the air holes are configured to be exposed when the heating module is removed from the bracket.

[0012] The present invention provides an aerosol generating device, comprising:

[0013] stents; and

[0014] a heating module removably connected to the bracket, the heating module comprising a first receiving chamber for receiving at least a portion of the aerosol-generating article, a heating assembly disposed upstream of the first receiving chamber in an airflow direction and in fluid communication with the first receiving chamber, and an end cap, the heating assembly being configured to heat air flowing therethrough, the end cap being provided with an insertion port for inserting the aerosol-generating article into the first receiving chamber;

[0015] Wherein, at least a portion of the end cover is exposed from the bracket.

[0016] An embodiment of the present application provides a heating assembly, comprising a first accommodating cavity for accommodating at least a portion of an aerosol-generating article, and further comprising a heating assembly disposed upstream of the first accommodating cavity along an airflow direction;

[0017] The heating assembly includes a porous member having one or more air holes in fluid communication with the first accommodating cavity, wherein one end of the air hole adjacent to the first accommodating cavity is an air outlet end, and the other end opposite thereto is an air inlet end;

[0018] The heating assembly is configured to heat the air flowing through the air holes;

[0019] Wherein, at least part of the air inlet ends of the air holes are exposed.

[0020] The aforementioned aerosol-generating device and heating module can accommodate at least a portion of an aerosol-generating article. The heating module includes a heating element capable of heating air. The heating module is removably connected to a support, and when the heating module is removed, the air inlet ends of at least some of the air holes on the heating element are exposed. This allows the exposed air inlet ends to be cleaned and the air holes to be unblocked after the heating module is removed from the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] FIG1 is a schematic diagram of an aerosol generating device provided in one embodiment of the present application;

[0023] FIG2 is a schematic diagram of a heating module provided in an embodiment of the present application after being removed from a main body;

[0024] FIG3 is a cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

[0025] FIG4 is a schematic diagram of a heating module provided in one embodiment of the present application;

[0026] FIG5 is a cross-sectional view of a heating module provided in an embodiment of the present application after being removed from a main body;

[0027] FIG6 is a cross-sectional view of an aerosol generating device provided in another embodiment of the present application;

[0028] FIG7 is a schematic diagram of a heating module provided in another embodiment of the present application;

[0029] FIG8 is a cross-sectional view of a heating module provided by another embodiment of the present application after being removed from the body;

[0030] In the figure: 1. Heating module; 11. Heating component; 111. Perforated member; 111a. Air hole; 111b. Air inlet end; 111c. Air outlet end; 111d. Upstream end; 12. First accommodating chamber; 13. End cover; 131. Insertion port; 132. Cover portion; 133. Tube portion; 1331. First portion; 1332. Second portion; 1333. Third portion; 1334. Through hole; 14. Connector; 141. First connector; 141a. Fourth portion; 141b. Fifth portion; 142. Second connector; 143. Third connector; 15. Gap; 16. Sensor; 2. Main body; 21. Power supply component; 22. Magnetic field generator; 23. Bracket; 231. Second accommodating chamber; 232. First bracket; 233. Second bracket; 24. Cavity; 4. Air flow channel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting the quantity or order of the technical features indicated relative to importance or implicitly indicating the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment that includes a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be one or more intermediate elements in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0035] Please refer to Figures 1 and 2. An embodiment of the present application provides an aerosol generating device and a heating module suitable for the aerosol generating device. The aerosol generating device can be used to heat an aerosol generating product, so that the aerosol generating product can generate aerosol for the user to inhale.

[0036] As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol-forming substrate that, when heated, releases volatile compounds that can form an aerosol. The aerosol-forming substrate may be intended to be heated rather than burned to release the volatile compounds that can form an aerosol. Compared to aerosols produced by combustion or pyrolytic degradation of the aerosol-forming substrate, the aerosol formed by heating the aerosol-forming substrate may contain fewer components known to be hazardous. In one embodiment, the aerosol-generating article is removably coupled to an aerosol-generating device. The aerosol-generating article may be disposable or reusable.

[0037] The aerosol-forming substrate may be a solid aerosol-forming substrate. Alternatively, the aerosol-forming substrate may include solid and liquid components. The aerosol-forming substrate may include tobacco. The aerosol-forming substrate may include a tobacco-containing material that is capable of releasing a compound having a tobacco flavor or nicotine when heated. The aerosol-forming substrate may include a non-tobacco material. The aerosol-forming substrate may include a tobacco-containing material and a non-tobacco material.

[0038] The outer diameter of the aerosol-generating article may be between about 5 mm and about 12 mm, for example between about 5.5 mm and about 8 mm. In one embodiment, the outer diameter of the aerosol-generating article is 6.8 mm + / - 10%.

[0039] The total length of the aerosol-generating article may be between about 25 mm and about 100 mm. The total length of the aerosol-generating article may be between about 30 mm and about 100 mm.

[0040] As used herein, the term "aerosol generating device" is a device that engages or interacts with an aerosol-generating article to form an inhalable aerosol. Specifically, referring to Figures 1 to 4, the aerosol generating device includes a heating module 1 and a body 2. The heating module 1 can accommodate at least a portion of the aerosol-generating article, and the heating module 1 includes a heating component 11 that can release heat. The body 2 can include a power supply component 21 that can provide electrical support for the heating component 11 to release heat. The body 2 includes a bracket 23, and the heating module 1 is removably connected to the bracket 23, so that the heating module 1 can be separated from the bracket 23. Therefore, after the heating module 1 is removed from the bracket 23, the heating module 1 can be cleaned or maintained, or even replaced. In some examples, when the heating module 1 is removed from the bracket 23, the heating module 1 is simultaneously separated from the body 2.

[0041] More specifically, the heating module 1 is provided with a first accommodating cavity 12 for accommodating at least part of the aerosol-generating product. Along the airflow direction, the heating component 11 is arranged upstream of the first accommodating cavity 12. The heating component 11 has air holes 111a for allowing air to pass through, and the heating component 11 is fluidically connected to the first accommodating cavity 12, so that the air flowing through the heating component 11 can be heated by the heating component 11 to form hot air. The hot air then flows into the first accommodating cavity 12, heating the aerosol-generating product received in the first accommodating cavity 12, so that the aerosol-forming substrate generates an aerosol.

[0042] 2 to 8 , the heating assembly 11 includes a porous member 111 having one or more air holes 111a in fluid communication with the first accommodating chamber 12. One end of each air hole 111a adjacent to the first accommodating chamber 12 is an air outlet end 111c, and the other opposite end is an air inlet end 111b. Along the direction of airflow, the air inlet end 111b is located upstream of the air outlet end 111c. Air enters the corresponding air hole 111a through the air inlet end 111b, and then leaves the air hole 111a through the air outlet end 111c.

[0043] Since the porous component 111 is blocked mainly at the air inlet end 111b of the porous component 111, when the heating module 1 is removed from the bracket 23 so that the heating module 1 is separated from the bracket 23, the air inlet end 111b can be cleaned to clear the air holes 111a and reduce the influence of the porous component 111 on the suction resistance.

[0044] Based on this, in one embodiment, when the heating module 1 is removed from the main body 2 or the bracket 23, at least a portion of the air inlet end 111b of the air hole 111a is exposed to facilitate cleaning of the air inlet end 111b. The "exposed air inlet end" means that the air inlet end can be directly exposed to the human eye, or that a cleaning tool can reach and clean the air inlet end without disassembling the heating module, or even that a cleaning tool can reach into the air hole 111a. After the heating module 1 is removed from the main body 2 or the bracket 23, the air inlet end 111b on the porous member 111 is unobstructed and exposed on the heating module 1. In one example, when the heating module 1 is removed from the main body 2, the air inlet ends 111b of all the air holes 111a on the porous component 111 are exposed, so that the air inlet end 111b of each air hole 111a can be cleaned and each air hole 111a can be unblocked, thereby helping to reduce the replacement rate of the heating module 1 as a whole, which is beneficial to reducing usage costs and saving social resources.

[0045] In one embodiment, referring to FIG. 2 , the heating module 1 further comprises an end cap 13 having an insertion port 131 for inserting the aerosol generating product into the first accommodating chamber 12 . At least a portion of the end cap 13 is exposed from the body 2 or the bracket 23 , so that the heating module 1 can be separated from the body 2 or the bracket 23 by acting on the end cap 13 . The phrase “at least a portion of the end cap is exposed from the body or the bracket” means that at least a portion of the end cap can be directly exposed to the human eye’s field of vision, or that when the aerosol generating device is not disassembled (except for removing the dust cover covering the end cap), the user or a jig can touch and / or apply force to the end cap. This facilitates the removal of the heating module 1 from the body 2 or the bracket 23 .

[0046] As an example, referring to Figures 3 and 6 , the end cap 13 includes a cover portion 132 extending radially along the first accommodating chamber 12. The cover portion 132 is located at the upper end of the aerosol generating device, and at least a portion of the cover portion 132 is disposed above and supported by the body 2 or the bracket 23. Thus, the cover portion 132 is exposed from the body 2 or the bracket 23, and the heating module 1 can be removed from the body 2 or the bracket 23 by acting on the cover portion 132. The heating module 1 can be coupled to the body 2 or the bracket 23 or removed from the body 2 or the bracket 23 along the axial direction of the first accommodating chamber 12. The insertion opening 131 can be at least partially defined by the cover portion 132.

[0047] As an example, referring to Figures 3 and 6, the end cap 13 includes a tubular portion 133 extending axially along the first accommodating cavity 12. The tubular portion 133 may define at least a portion of the insertion opening 131. The tubular portion 133 is in communication with the first accommodating cavity 12 and may guide the aerosol-generating article into the first accommodating cavity 12. At least a portion of the tubular portion 133 may clamp the aerosol-generating article to prevent the aerosol-generating article from being carried out of the aerosol-generating device through the user's mouth when the user inhales the aerosol-generating article.

[0048] 5 and 8 , the tube portion 133 and the cover portion 132 are formed independently and then connected by assembly, and the tube portion 133 and the cover portion 132 respectively define a portion of the boundary of the insertion port 131. In other embodiments, the tube portion 133 and the cover portion 132 may be formed integrally.

[0049] As an example, referring to Figure 3, the aerosol generating device has an air flow channel 4 that is fluidically connected to the heating component 11, and the end cover 13 can provide an air inlet channel for the air outside the aerosol generating device to enter the air flow channel 4, so that the air outside the aerosol generating device can enter the first accommodating chamber 12 through the end cover 13, the air flow channel 4 and the heating component 11 in sequence.

[0050] For example, a through hole 1334 may be provided on the wall of the tube portion 133 to fluidly connect the insertion port 131 and the air flow channel 4 , so that air outside the aerosol generating device can enter the air flow channel 4 through the insertion port 131 and the through hole 1334 in sequence.

[0051] Based on this, referring to FIG. 5 , the tube portion 133 may include a first portion 1331 and a second portion 1332. The first portion 1331 and the second portion 1332 may be arranged axially along the first accommodating chamber 12. The inner diameter of the first portion 1331 may be larger than the inner diameter of the second portion 1332. A through hole 1334 is provided in the first portion 1331. This prevents the through hole 1334 from being blocked by the aerosol-generating article when the aerosol-generating article is inserted into the insertion port 131, thereby helping to reduce draw resistance. More specifically, the inner diameter of the second portion 1332 may be smaller than or equal to the outer diameter of the aerosol-generating article. This allows the second portion 1332 to clamp the aerosol-generating article, preventing the aerosol-generating article from unintentionally moving relative to the aerosol-generating device when the user is using the device. Along the direction of airflow, the first part 1331 is arranged upstream of the second part 1332. The inner diameter of the first part 1331 can be larger than the outer diameter of the aerosol generating product. The first part 1331 can be arranged adjacent to the cover 132 or adjacent to the outside of the aerosol generating device. Compared with the second part 1332, the first part 1331 is closer to the cover 132 or closer to the outside.

[0052] The tube portion 133 may also have a third portion 1333 located between the first portion 1331 and the second portion 1332. The inner diameter of the third portion 1333 is larger than the inner diameter of the second portion 1332, and the inner diameter of the third portion 1333 is smaller than the inner diameter of the first portion 1331. At least a portion of the inner wall of the third portion 1333 may form a slope. The slope helps the aerosol generating product to enter the second portion 1332 more easily after passing through the first portion 1331, thereby facilitating the insertion of the aerosol generating product into the first accommodating cavity 12.

[0053] In one embodiment, referring to Figures 4, 5, 7 and 8, the heating module 1 also includes a connector 14, which is connected to the heating component 11. When the heating module 1 is combined with the body 2 or the bracket 23, the heating component 11 is sent into the body 2 or the bracket 23 through the connector 14. When the heating module 1 is removed from the body 2 or the bracket 23, the heating component 11 is taken out of the body 2 or the bracket 23 through the connector 14.

[0054] Referring to Figures 3-8 , a connector 14 is disposed around the first accommodating chamber 12, and at least a portion of the aerosol-generating article can be retained within the connector 14. The connector 14 can connect the heating assembly 11 and the end cap 13, thereby enabling synchronous movement of the heating assembly 11 and the end cap 13 relative to the body 2. More specifically, the connector 14 can connect the tube 133 and the heating assembly 11.

[0055] Based on this, as an example, the connector 14 includes a first connector 141, which defines at least a partial boundary of the first accommodating cavity 12. When the aerosol generating article is inserted into the first accommodating cavity 12, at least a portion of the inner wall of the first connector 141 can contact the aerosol generating article.

[0056] The inner diameter of at least part of the first connecting member 141 can be made smaller than the outer diameter of the aerosol generating product, or the inner diameter of at least part of the first connecting member 141 can be made slightly smaller than the inner diameter of the second part 1332, so that at least part of the first connecting member 141 can clamp the aerosol generating product, which helps to keep the aerosol generating product more stably in the heating module 1.

[0057] The inner diameter of at least part of the first connecting member 141 may be larger than the outer diameter of the aerosol generating article, so as to facilitate insertion and removal of the aerosol generating article into the heating module 1 .

[0058] In this regard, referring to FIG. 8 , the first connector 141 may include a fourth portion 141a and a fifth portion 141b. Compared to the fifth portion 141b, the fourth portion 141a is closer to the end cap 13, and the fourth portion 141a may even be connected to the end cap 13. The inner diameter of the fourth portion 141a is smaller than the outer diameter of the aerosol-generating article, or the inner diameter of the fourth portion 141a is smaller than the inner diameter of the second portion 1332. The fourth portion 141a may be capable of clamping the aerosol-generating article.

[0059] In the direction of airflow, the fifth portion 141b is located upstream of the fourth portion 141a. Therefore, when the air heated by the heating assembly 11 flows along the airflow direction and releases heat, the temperature of the fifth portion 141b will be higher than that of the fourth portion 141a. At the same time, the temperature of the aerosol-generating article surrounded by the fifth portion 141b may be higher than that of the aerosol-generating article surrounded by the fourth portion 141a. To prevent overheating of the aerosol-generating article surrounded by the fifth portion 141b, the inner diameter of the fifth portion 141b can be larger than the outer diameter of the aerosol-generating article. This ensures that when the aerosol-generating article is accommodated in the first accommodating chamber 12, there is no contact between the fifth portion 141b and the aerosol-generating article. Furthermore, the air between the fifth portion 141b and the aerosol-generating article forms an air insulation layer, which helps prevent the aerosol-generating article surrounded by the fifth portion 141b from being burnt.

[0060] In order to reduce the temperature gradient on the first connector 141 and ensure uniform heating of the aerosol-generating article surrounded by the first connector 141, the first connector 141 may be made of a thermally conductive material. A thermally conductive material may be understood as a material having a thermal conductivity of at least 10 W / (m·K), preferably at least 40 W / (m·K), and more preferably at least 100 W / (m·K) at 23°C and 50% relative humidity. Specifically, the first connector 141 is formed of a material having a thermal conductivity of at least 40 W / (m·K), preferably at least 100 W / (m·K), more preferably at least 150 W / (m·K), and most preferably at least 200 W / (m·K) at 23°C and 50% relative humidity. Suitable thermally conductive materials include, but are not limited to, graphite, graphene, aluminum, copper, zinc, steel, silver, thermally conductive polymers, metals, or any combination or alloy thereof.

[0061] The first connector 141 is made of a heat-conducting material, so that the upstream and downstream parts of the aerosol generating product surrounded by the first connector 141 can be fully heated, which helps to fully utilize the aerosol generating product and improve the smoking experience.

[0062] As an example, the first connector 141 connects the heating assembly 11 and the end cap 13. For example, referring to Figures 4 and 5, the first connector 141 is configured as a hollow tube. The interior of the first connector 141 may have a first accommodating cavity 12 and a third accommodating cavity in fluid communication. The first accommodating cavity 12 is used to receive at least a portion of the aerosol-generating article, and at least a portion of the heating assembly 11 is disposed in the third accommodating cavity.

[0063] As an example, the connector 14 may include, in addition to the first connector 141, a second connector 142, which connects the first connector 141 and the heating assembly 11. For example, referring to Figures 7 and 8 , the second connector 142 is configured as a hollow tube, and at least a portion of the first connector 141 may be disposed within the second connector 142, while at least a portion of the heating assembly 11 may be disposed within the second connector 142. In this example, the heating assembly 11 and the first connector 141 may be non-contacting, although this does not rule out the possibility that the heating assembly 11 may be connected to the first connector 141.

[0064] The second connecting member 142 can insulate at least a portion of the first accommodating cavity 12 to slow down the rate at which the temperature of the air heated by the heating component 11 drops inside the aerosol generating product, which helps to reduce the energy consumption of the aerosol generating device and is beneficial for heating the aerosol generating product more fully.

[0065] The second connector 142 can be made of a thermal insulation material. A thermal insulation material refers to a material having a thermal conductivity of less than 100 W / (m·K) at 23°C and 50% relative humidity, preferably less than 40 W / (m·K) or less than 10 W / (m·K). For example, the thermal insulation material can be made of at least one of a PAEK-based material, a PI material, or a PBI material, wherein the PAEK-based material includes PEEK, PEKK, PEKEKK, or a PEK material. For example, the thermal insulation material can include glass fiber, glass mat, ceramic, silica, alumina, carbon, and ore, or any combination thereof.

[0066] Alternatively, the second connecting member 142 may have a sealed air layer therein, and the sealed air layer may be a negative pressure layer (air pressure is less than atmospheric pressure) or a normal pressure layer (air pressure is equal to atmospheric pressure).

[0067] As an example, referring to Figures 6 and 8 , the connector 14 includes a second connector 142 and a third connector 143. At least a portion of the heating assembly 11 is disposed within the third connector 143. The second connector 142 connects the end cap 13 and the third connector 143. In this example, the heating module 1 may not include the first connector 141. Alternatively, referring to Figures 6-8 , the heating module 1 may still include the first connector 141.

[0068] The third connector 143 can withstand temperatures of 300°C or higher. The third connector 143 can be made of a thermally insulating material, or a material with a high heat capacity. The material with a high heat capacity can have a specific heat capacity of at least 0.5 J / (g·K), such as at least 0.7 J / (g·K), or at least 0.8 J / (g·K), at 25°C and constant pressure. For example, the third connector 143 can include, but is not limited to, glass fiber, glass mat, ceramic, silica, alumina, carbon, minerals, or any combination thereof.

[0069] When both the first connector 141 and the second connector 142 are provided, at least one of the first connector 141 and the second connector 142 can be connected to the end cap 13. In the embodiments shown in Figures 6 and 8, both the first connector 141 and the second connector 142 are connected to the end cap 13. Specifically, both the first connector 141 and the second connector 142 are connected to the pipe portion 133.

[0070] In which, there can be a gap 15 between the first connecting member 141 and the second connecting member 142, and the connection between the first connecting member 141 and the tube portion 133 can be a gap connection, so that the air in the insertion port 131 can enter the gap 15 between the first connecting member 141 and the second connecting member 142 through the connection gap between the first connecting member 141 and the tube portion 133, so that an air insulation layer can be formed between the first connecting member 141 and the second connecting member 142, and the air insulation layer at least surrounds the fourth part 141a of the first connecting member 141. Along the direction of air entering the gap 15 between the first connector 141 and the second connector 142, the second portion 1332 of the tube portion 133 is located upstream of the connection gap between the first connector 141 and the tube portion 133, so that the second portion 1332 is in close contact with the aerosol-generating article for at least one lap. Thus, the second portion 1322 cooperates with the aerosol-generating article to prevent air from entering the connection gap between the first connector 141 and the tube portion 133, and further prevents air from entering the gap 15 between the first connector 141 and the second connector 142. This ensures that when the aerosol-generating article is incorporated into the heating module 1, the air insulation layer (gap 15) between the first connector 141 and the second connector 142 is in a closed state, thereby reducing convection in the air insulation layer and enhancing the thermal insulation effect of the air insulation layer. It should be noted that the air insulation layer between the first connector 141 and the second connector 142 is optional and not required.

[0071] When the heating module 1 has the first connecting member 141, at least a portion of the heating assembly 11 may be disposed outside the first connecting member 141. In the embodiments shown in FIG6 and FIG8, the heating assembly 11 is completely located outside the first connecting member 141.

[0072] In the embodiments shown in FIG. 3 and FIG. 5 , the heating assembly 11 is almost completely located within the first connecting member 141 .

[0073] The porous member 111 includes an upstream end 111d and a downstream end, with an air inlet end 111b located at the upstream end 111d and an air outlet end 111c located at the downstream end. With the insertion port 131 positioned at the upper end of the aerosol generating device as a reference, the lower end of the connector 14 is open, exposing the upstream end 111d of the porous member 111 and the air inlet end 111b located thereon. In the embodiment shown in Figures 4 and 5 , the upstream end 111d protrudes beyond the connector 14, exposing the upstream end 111d of the porous member 111 and the air inlet end 111b located thereon. It is understandable that the upstream end 111d and the air inlet end 111b opened on the upstream end 111d can also be exposed by making the upstream end 111d flush with the lower end of the connecting member 14, or as shown in Figures 7 and 8, making the upstream end 111d inside the connecting member 14 and having a gap between the upstream end 111d and the lower end of the connecting member 14.

[0074] It should be noted that it is optional but not mandatory to remove the heating module 1 from the main body 2 or the bracket 23 by acting on the end cover 13. The heating module 1 can also be driven to be removed from the main body 2 or the bracket 23 by applying force to other parts of the heating module 1. The other parts are called force-bearing parts, and the connecting member 14 can connect the force-bearing parts and the heating assembly 11.

[0075] In one embodiment, the heating assembly 11 includes a susceptor 16 that can generate heat in a varying magnetic field. As used herein, the term "susceptor" refers to a material that can convert electromagnetic energy into heat. When located within a varying electromagnetic field, eddy currents and magnetic hysteresis induced in the susceptor 16 can cause heating of the susceptor 16. In such an embodiment, the susceptor 16 is designed to interface with an aerosol-generating device that includes a magnetic field generator 22. The magnetic field generator 22 generates a varying magnetic field to heat the susceptor 16 within the varying magnetic field. During use, the susceptor 16 is located within the varying magnetic field generated by the magnetic field generator 22. The magnetic field generator 22 is electrically connected to a power supply assembly 21, which provides the magnetic field generator 22 with current to generate the varying magnetic field. The magnetic field generator 22 may include one or more induction coils that generate the varying magnetic field; the one or more induction coils may surround the susceptor 16. In one embodiment, the aerosol-generating device is capable of generating a varying magnetic field between 1 and 30 MHz, for example, between 2 and 10 MHz, or for example, between 5 and 7 MHz. In an embodiment, the aerosol generating device is capable of generating a varying magnetic field having a field strength (H field) between 1 and 5 kA / m, such as between 2 and 3 kA / m, such as about 2.5 kA / m.

[0076] The susceptor 16 may comprise metal or carbon. In one embodiment, the susceptor 16 may comprise a ferromagnetic material, such as ferrite, ferromagnetic steel, or stainless steel. In one embodiment, the susceptor 16 comprises a nickel-iron alloy. In one embodiment, the susceptor 16 comprises 400 series stainless steel, which includes 410, 420, or 430 grade stainless steel. The carbon includes graphite, graphene, or a graphite alloy.

[0077] As an example, at least a portion of the porous member 111 is constituted by the susceptor 16 , that is, at least part of the air holes 111 a may be opened on the susceptor 16 .

[0078] As an example, referring to Figures 5 and 8 , susceptor 16 is attached to porous member 111. Porous member 111 absorbs heat released by susceptor 16 to increase its temperature, which then releases heat to heat the air flowing through pores 111a. For this purpose, porous member 111 can be made of a thermally conductive material such as graphite, graphene, a graphite alloy, or metal. Alternatively, porous member 111 can be made of a material with a high heat capacity.

[0079] When the susceptor 16 is coupled to the porous member 111 , at least a portion of the susceptor 16 may be embedded in the porous member 111 , or the susceptor 16 may be disposed around the porous member 111 .

[0080] The magnetic field generator 22 can be combined with the heating module 1, so that the magnetic field generator 22 can be removed from the main body 2 or the bracket 23 along with the heating module 1. When the magnetic field generator 22 is combined with the heating module 1, the heating module 1 also includes a first electrode electrically connected to the magnetic field generator 22, and the main body 2 or the bracket 23 is provided with a second electrode electrically connected to the power supply assembly 21. When the heating module 1 is combined with the main body 2 or the bracket 23, the first electrode abuts the second electrode, so that the first electrode can draw power from the second electrode, thereby providing the magnetic field generator 22 with electrical energy to generate a changing magnetic field. The abutment between the first and second electrodes is detachable, so as not to affect the removal of the heating module 1 from the main body 2 or the bracket 23.

[0081] It should be noted that, in other embodiments, the heating module 1 includes a first electrode, the heating component 11 includes a resistive heating element electrically connected to the first electrode, and the main body 2 or the bracket 23 includes a second electrode. When the heating module 1 is combined with the main body 2 or the bracket 23, the first electrode abuts the second electrode, so that the first electrode can draw electricity from the second electrode, and then provide electrical energy to generate Joule heat for the resistive heating element. In this embodiment, the heating module 1 may not include the sensor 16; wherein the abutment between the first electrode and the second electrode is detachable, so as not to affect the removal of the heating module 1 from the main body 2.

[0082] 5 and 8 , the magnetic field generator 22 can be coupled to the body 2 or the bracket 23, so that when the heating module 1 is removed from the body 2 or the bracket 23, the magnetic field generator 22 can remain on the body 2 or the bracket 23. When the heating module 1 is coupled to the body 2 or the bracket 23, at least a portion of the heating assembly 11, such as the susceptor 16, is within the magnetic field coverage of the magnetic field generator 22.

[0083] When the heating module 1 is coupled to the body 2 or the bracket 23, as an example, referring to Figures 3, 5, 6, and 8, a second accommodating cavity 231 is formed within the bracket 23. The heating module 1 is at least partially accommodated within the second accommodating cavity 231. When the heating module 1 is removed from the bracket 23, the heating module 1 is separated from the second accommodating cavity 231. The bracket 23 can isolate the magnetic field generator 22 from the second accommodating cavity 231, preventing aerosols, condensed liquid, etc. in the second accommodating cavity 231 from adhering to the magnetic field generator 22, thereby protecting the magnetic field generator 22. For example, the second accommodating cavity 231 is located inside the bracket 23, and the magnetic field generator 22 includes an induction coil wound outside the bracket 23.

[0084] It should be noted that, no matter whether the main body 2 is combined with the magnetic field generator 22 , the main body 2 may include a bracket 23 capable of forming the second accommodating cavity 231 .

[0085] In one embodiment, with the insertion port 131 located at the upper end of the aerosol generating device, the bracket 23 includes a first bracket 232 disposed below the heating module 1. At least a portion of the first bracket 232 may extend radially along the first accommodating cavity 12, and at least a portion of the first bracket 232 may define at least a portion of the bottom of the second accommodating cavity 231. The heating assembly 11 and the first bracket 232 are spaced apart from each other, preventing liquid from reaching the air inlet end 111b of the porous member 111 from being retained at the air inlet end 111b by the first bracket 232, thereby blocking the air holes 111a or preventing air from entering the air holes 111a. This facilitates the rapid drainage of liquid from the air holes 111a, preventing clogging. The heating module 1 can be removed from the body 2, and the accumulated liquid and grease on the first bracket 232 can be cleaned to prevent the first bracket 232 from being connected to the porous member 111 through liquid, and to prevent liquid on the first bracket 232 from getting too close to or even submerging the upstream end 111d of the porous member 111.

[0086] The air inlet end 111b and the first bracket 232 may be separated only by air, that is, as shown in FIG3 and FIG6 , there may be no other structural components between the air inlet end 111b and the first bracket 232, or in an orthographic projection along the axial downward direction of the first accommodating chamber 12, the projection of other components disposed between the heating module 1 and the first bracket 232 may be located outside the orthographic projection of all the air holes 111a, and the connector 14 connecting the heating assembly 11 may not extend between the air inlet end 111b and the first bracket 232, and in an orthographic projection along the axial downward direction of the first accommodating chamber 12, the orthographic projection of the connector 14 may not overlap with the orthographic projection of any air hole 111a. This prevents liquid from accumulating and forming grease between the air inlet end 111b and the connector 14, thereby blocking the air holes 111a, and prevents liquid from accumulating and forming grease between the air inlet end 111b and the first bracket 232, thereby blocking the air holes 111a.

[0087] As an example, referring to Figures 5 and 8 , first bracket 232 seals the bottom of second accommodating chamber 231, allowing condensation on the sidewalls of second accommodating chamber 231 and liquid in perforated member 111 to collect on first bracket 232. This prevents liquid leakage from the aerosol generating device. Furthermore, first bracket 232 isolates power supply assembly 21 from second accommodating chamber 231, preventing aerosol contamination and corrosion of power supply assembly 21 and thus protecting it.

[0088] The first bracket 232 seals the bottom of the second accommodating cavity 231, and the first bracket 232 is separated from the air inlet end 111b by air, so that an air insulation layer can be formed between the first bracket 232 and the heating module 1, which is beneficial to preventing the temperature of the heating component 11 from decreasing and is conducive to reducing the energy consumption of the aerosol generating device.

[0089] In the embodiments shown in Figures 5 and 8, a cavity 24 is formed on the side of the first bracket 232 facing away from the second accommodating cavity 231. An air insulation layer can be formed in the cavity 24 to further insulate the heating assembly 11 and the second accommodating cavity 231. The first bracket 232 can define at least a portion of the cavity 24.

[0090] As an example, referring to Figures 5 and 8, the bracket 23 includes a second bracket 233 on the basis of the first bracket 232. The second bracket 233 extends along the axial direction of the first accommodating cavity 12 and defines a partial boundary of the second accommodating cavity 231. The second bracket 233 can be complete, and its side wall may not have a through hole connecting the inner and outer sides of the second bracket 233. At least a part of the air flow channel 4 can be set between the second bracket 233 and the heating module 1. Therefore, before the air enters the air hole 111a of the heating component 11, it first flows along the outer wall of the heating module 1, thereby preheating the air entering the air hole 111a, which helps to fully utilize the energy released by the heating component 11 and prevent the surface temperature of the aerosol generating device from being too high.

[0091] The first bracket 232 and the second bracket 233 may be assembled and connected to each other, or the first bracket 232 and the second bracket 233 may be integrally formed.

[0092] The above-mentioned aerosol generating device and heating module 1 can accommodate at least a part of the aerosol generating product. The heating module 1 includes a heating component 11 capable of heating air. The heating module 1 is removably connected to the main body 2, and when the heating module 1 is removed, the air inlet end 111b of at least part of the air hole 111a on the heating component 11 is exposed, so that when the heating component 11 is blocked, the heating module 1 can be replaced, or after removing the heating module 1, the exposed air inlet end 111b can be cleaned and the air hole 111a can be unblocked.

[0093] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol generating device, characterized in that: include: Bracket; and a heating module removably connected to the support, the heating module comprising a first receiving cavity for receiving at least part of the aerosol generating article, and a heating assembly disposed upstream of the first receiving cavity along the airflow direction; The heating component comprises a porous member, the porous member has one or more air holes in fluid communication with the first accommodating cavity, one end of the air hole adjacent to the first accommodating cavity is an air outlet end, and the other end opposite to the air hole is an air inlet end, and the heating component is configured to heat the air flowing through the air hole; Wherein, at least part of the air inlet ends of the air holes are configured to be exposed when the heating module is removed from the bracket.

2. The aerosol generating device according to claim 1, characterized in that The heating module further comprises an end cover having an insertion port for inserting the aerosol generating product into the first accommodating cavity, and at least a portion of the end cover is exposed from the bracket.

3. The aerosol generating device according to claim 2, characterized in that The end cap includes a cover portion extending radially along the first accommodating cavity, the cover portion is located at the upper end of the aerosol generating device, and at least a part of the cover portion is arranged above the bracket and supported by the bracket.

4. The aerosol generating device according to claim 2, characterized in that The aerosol generating device has an air flow channel in fluid communication with the heating assembly; The end cover includes a tube portion extending along the axial direction of the first accommodating cavity, the tube portion defines at least a portion of the insertion port, and a through hole for fluidly connecting the insertion port and the airflow channel is opened on the wall of the tube portion.

5. The aerosol generating device according to claim 4, characterized in that The tube portion includes a first portion and a second portion. Along the airflow direction, the first portion is arranged upstream of the second portion, and the inner diameter of the first portion is larger than the inner diameter of the second portion. The through hole is opened on the first portion.

6. The aerosol generating device according to claim 2, characterized in that The heating module also includes a connecting member, which is arranged around at least a portion of the first accommodating cavity and connects the end cover and the heating assembly.

7. The aerosol generating device according to claim 6, characterized in that The connector includes a first connector, at least a portion of which is configured to contact the aerosol-generating article.

8. The aerosol generating device according to claim 7, characterized in that The first connecting member is made of a heat-conducting material, the thermal conductivity of the heat-conducting material is greater than or equal to 40 W / (m·k), preferably, the thermal conductivity of the heat-conducting material is greater than or equal to 100 W / (m·k); or The first connecting member is made of metal.

9. The aerosol generating device according to claim 7, characterized in that The connecting member includes a second connecting member, and the second connecting member connects the first connecting member and the heating assembly.

10. The aerosol generating device according to claim 9, characterized in that The first connecting member and / or the second connecting member are connected to the end cover.

11. The aerosol generating device according to claim 7, wherein: The first connecting member connects the heating component and the end cover.

12. The aerosol generating device according to claim 6, wherein: The connecting member includes a second connecting member and a third connecting member, the heating component is at least partially arranged in the third connecting member, and the second connecting member connects the end cover and the third connecting member.

13. The aerosol generating device according to claim 12, wherein: The connecting member includes a first connecting member connected to the second connecting member, and the first connecting member defines at least a partial boundary of the first accommodating cavity.

14. The aerosol generating device according to claim 7 or 13, characterized in that: At least a portion of the heating component is disposed outside the first connecting member.

15. The aerosol generating device according to claim 1, wherein: The aerosol generating device comprises a magnetic field generator for generating a changing magnetic field, the heating component comprises a sensor capable of generating heat in the changing magnetic field, and the sensor is configured to be within the magnetic field coverage of the magnetic field generator when the heating module is combined with the bracket.

16. The aerosol generating device according to claim 15, characterized in that The magnetic field generator is combined with the bracket, a second accommodating cavity is formed inside the bracket, the heating module is at least partially received in the second accommodating cavity, and the bracket isolates the magnetic field generator and the second accommodating cavity.

17. The aerosol generating device according to claim 15, wherein: The magnetic field generator is combined with the heating module, and the magnetic field generator is configured to be detached from the bracket when the heating module is removed from the bracket.

18. The aerosol generating device according to claim 1, wherein: The aerosol generating device comprises an insertion port for inserting the aerosol generating product into the first containing cavity, wherein the insertion port is arranged at the upper end of the aerosol generating device; A second accommodating cavity is formed inside the bracket, and at least a part of the heating module is accommodated in the second accommodating cavity; The support comprises a first support arranged below the heating module, wherein at least a portion of the first support extends radially along the first accommodating cavity and defines at least a portion of the boundary of the bottom of the second accommodating cavity, and the heating component is spaced apart from the first support.

19. The aerosol generating device according to claim 18, wherein: The first bracket seals the bottom of the second accommodating cavity.

20. The aerosol generating device according to claim 18, wherein: The air inlet end is separated from the first bracket by only air.

21. The aerosol generating device according to claim 18, wherein: The bracket further includes a second bracket, the second bracket extending along the axial direction of the first accommodating cavity and defining a partial boundary of the second accommodating cavity; The aerosol generating device has an air flow channel in fluid communication with the heating module, and at least a portion of the air flow channel is disposed between the second bracket and the heating module.

22. An aerosol generating device, characterized in that: include: Bracket; and a heating module removably connected to the support, the heating module comprising a first accommodating cavity for accommodating at least part of the aerosol generating article, a heating component disposed upstream of the first accommodating cavity along the airflow direction and in fluid communication with the first accommodating cavity, and an end cap, the heating component being configured to heat the air flowing therethrough, the end cap being provided with an insertion port for inserting the aerosol generating article into the first accommodating cavity; Wherein, at least a portion of the end cover is exposed from the bracket.

23. A heating module, characterized in that: It includes a first receiving chamber for receiving at least part of the aerosol generating article, and a heating assembly disposed upstream of the first receiving chamber along the airflow direction; The heating assembly comprises a porous member, the porous member has one or more air holes in fluid communication with the first accommodating cavity, one end of the air hole adjacent to the first accommodating cavity is an air outlet end, and the other end opposite to the air hole is an air inlet end; The heating assembly is configured to heat the air flowing through the air hole; Wherein, at least part of the air inlet ends of the air holes are exposed.

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