Aerosol generating device and heating module

Abstract

The invention relates to an aerosol generating device and a heating module. The aerosol generating device comprises a support; the heating module is detachably connected with the body, the heating module comprises a first containing cavity used for containing at least part of the aerosol generating product, and the heating module further comprises a heating assembly arranged on the upstream of the first containing cavity in the airflow direction; the heating assembly comprises a porous component, the porous component is provided with one or more air holes communicated with the first containing cavity through fluid, the end, adjacent to the first containing cavity, of each air hole is an air outlet end, the other opposite end of each air hole is an air inlet end, and the heating assembly is configured to heat air flowing through the air holes; the air inlet ends of at least part of the air holes are configured to be exposed when the heating module is removed from the support.

Description

Technical Field

[0001] 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

[0002] An aerosol generating device is a device that enables an aerosol product (e.g., a cigarette, a cigar, etc.) to generate aerosol without burning. The device includes a heating component and a power 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 to form hot air, which then flows into the aerosol product to heat the aerosol product. However, existing heating components for heating air are easily blocked. Summary of the invention

[0003] The embodiments of the present application provide an aerosol generating device and a heating module, which are convenient to clean or replace the heating module with a heating component, thereby helping to extend the service life of the aerosol generating device and improve user experience.

[0004] The present application provides an aerosol generating device, comprising:

[0005] Braces; and

[0006] 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;

[0007] 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;

[0008] 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.

[0009] The present application provides an aerosol generating device, comprising:

[0010] Braces; and

[0011] 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;

[0012] Wherein, at least a portion of the end cover is exposed from the bracket.

[0013] The 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;

[0014] 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;

[0015] The heating assembly is configured to heat the air flowing through the air hole;

[0016] Wherein, at least part of the air inlet ends of the air holes are exposed.

[0017] The above-mentioned aerosol generating device and heating module can accommodate at least part of the aerosol generating product. The heating module includes a heating component capable of heating air. The heating module is removably connected to the support, and when the heating module is removed, the air inlet ends of at least part of the air holes on the heating component are exposed. Therefore, after the heating module is removed from the support, the exposed air inlet ends can be cleaned and the air holes can be unblocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 is a schematic diagram of an aerosol generating device provided in one embodiment of the present application;

[0020] Figure 2 is a schematic diagram of a heating module provided in an embodiment of the present application after being removed from the main body;

[0021] Figure 3 is a cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

[0022] Figure 4 is a schematic diagram of a heating module provided in one embodiment of the present application;

[0023] Figure 5 is a cross-sectional view of a heating module provided in an embodiment of the present application after being removed from the main body;

[0024] Figure 6 is a cross-sectional view of an aerosol generating device provided in another embodiment of the present application;

[0025] Figure 7 is a schematic diagram of a heating module provided by another embodiment of the present application;

[0026] Figure 8 is a cross-sectional view of a heating module provided by another embodiment of the present application after being removed from the main body;

[0027] In the figure:

[0028] 1. Heating module;

[0029] 11. Heating assembly; 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;

[0030] 2. Ontology;

[0031] 21. Power supply assembly; 22. Magnetic field generator; 23. Bracket; 231. Second accommodating cavity; 232. First bracket; 233. Second bracket; 24. Cavity;

[0032] 32. second electrode; 321. first contact portion; 322. second contact portion; 33. second bracket; 331. supporting surface; 332. cylindrical body; 34. housing;

[0033] 4. Air flow channel. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or suggesting the quantity or order of the indicated technical features relative to importance or implicitly indicating. 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 between the components under a certain specific posture (as shown in the accompanying drawings), and 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 comprising 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.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] 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 a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be one or more central elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] Please refer to Figure 1 and Figure 2 One 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 users to inhale.

[0039] 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 volatile compounds that can form an aerosol. The aerosol formed by heating the aerosol-forming substrate may contain fewer components known to be hazardous than an aerosol produced by burning or pyrolytic degradation of the aerosol-forming substrate. In an embodiment, the aerosol-generating article is removably coupled to the aerosol generating device. The aerosol-generating article may be disposable or reusable.

[0040] Aerosol formation substrate can be solid aerosol formation substrate.Perhaps, aerosol formation substrate can include solid and liquid components.Aerosol formation substrate can include tobacco.Aerosol formation substrate can include tobacco-containing material, and the tobacco-containing material can release compounds with tobacco flavor or nicotine when heated.Aerosol formation substrate can include non-tobacco material.Aerosol formation substrate can include tobacco-containing material and does not contain tobacco material.

[0041] 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 an embodiment, the outer diameter of the aerosol-generating article is 6.8 mm + / - 10%.

[0042] 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.

[0043] 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, the aerosol generating device includes a heating module 1 and a body 2, wherein 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, which can release heat, and the body 2 can include a power supply component 21, which can provide power support for the heating component 11 to release heat. Among them, 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, so that the heating module 1 can be cleaned or maintained after removing the heating module 1 from the bracket 23, and the heating module 1 can even be replaced. In some examples, when the heating module 1 is removed from the bracket 23, the heating module 1 is separated from the body 2 at the same time.

[0044] More specifically, the heating module 1 is provided with a first accommodating chamber 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 chamber 12. The heating component 11 has air holes 111a for allowing air to pass through, and the heating component 11 is fluidly connected with the first accommodating chamber 12, so that the air flowing through the heating component 11 can be heated by the heating component 11 to form hot air, and the hot air then flows into the first accommodating chamber 12 to heat the aerosol generating product received in the first accommodating chamber 12, so that the aerosol-forming substrate generates an aerosol.

[0045] You can refer to Figure 2-Figure 8 The heating component 11 includes a porous component 111, and the porous component 11 has one or more air holes 111a that are fluidically connected to 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 air flow, 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.

[0046] 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 can be cleaned to clear the air hole 111a and reduce the influence of the porous component 111 on the suction resistance.

[0047] Based on this, in one embodiment, when the heating module 1 is removed from the main body 2 or the bracket 23, at least part of the air inlet end 111b of the air hole 111a is exposed to facilitate cleaning of the air inlet end 111b. The "air inlet end exposed" means that the air inlet end can be directly exposed to the field of vision of the human eye, or that the cleaning tool can reach and clean the air inlet end when the heating module is not disassembled, and even the cleaning tool can be inserted into the air hole. 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 not blocked 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 overall replacement rate of the heating module 1, which is beneficial to reducing usage costs and saving social resources.

[0048] In one embodiment, reference may be made to Figure 2The heating module 1 also includes an end cap 13, which has an insertion port 131 for inserting the aerosol generating product into the first accommodating cavity 12, and 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 "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 field of vision of the human eye, 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. It is helpful to facilitate the removal of the heating module 1 from the body 2 or the bracket 23.

[0049] As an example, see Figure 3 and Figure 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 arranged above the body 2 or the bracket 23 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, and the heating module 1 can be combined with 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. Among them, at least a partial boundary of the insertion port 131 can be defined by the cover portion 132.

[0050] As an example, see Figure 3 and Figure 6 The end cap 13 includes a tube portion 133 extending along the axial direction of the first accommodating cavity 12, the tube portion 133 can define at least a portion of the insertion port 131, the tube portion 133 is in communication with the first accommodating cavity 12, and the tube portion 133 can guide the aerosol generating product into the first accommodating cavity 12. At least a portion of the tube portion 133 can clamp the aerosol generating product to prevent the aerosol generating product from being taken out of the aerosol generating device by the user's mouth when the user inhales the aerosol generating product.

[0051] In such Figure 5 and Figure 8 In the illustrated embodiment, 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 and the cover portion may be formed integrally.

[0052] As an example, see Figure 3The aerosol generating device has an air flow channel 4 in fluid communication with 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.

[0053] For example, a through hole 1334 for fluidly connecting the insertion port 131 and the air flow channel 4 may be provided on the wall of the tube portion 133 , so that air outside the aerosol generating device may enter the air flow channel 4 through the insertion port 131 and the through hole 1334 in sequence.

[0054] Based on this, we can refer to Figure 5 The tube 133 may include a first portion 1331 and a second portion 1332. The first portion 1331 and the second portion 1332 may be distributed along the axial direction of the first accommodating cavity 12. The inner diameter of the first portion 1331 may be greater than the inner diameter of the second portion 1332. The through hole 1334 is provided on the first portion 1331, so that when the aerosol generating product is inserted into the insertion port 131, the through hole 1334 can be prevented from being blocked by the aerosol generating product, which helps to reduce the inhalation resistance. More specifically, the inner diameter of the second portion 1332 may be less than or equal to the outer diameter of the aerosol generating product, so that the second portion 1332 can clamp the aerosol generating product to prevent the user from moving the aerosol generating product relative to the aerosol generating device in an unexpected situation. 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 part 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 part 132 or closer to the outside.

[0055] The tube portion 133 may also include a third portion 1333 located between the first portion 1331 and the second portion 1332. The inner diameter of the third portion 1333 is greater 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, which helps the aerosol generating product to more easily enter the second portion 1332 after passing through the first portion 1331, thereby facilitating the insertion of the aerosol generating product into the first accommodating cavity 12.

[0056] In one embodiment, reference may be made to Figure 4 , Figure 5 , Figure 7 and Figure 8The heating module 1 also includes a connecting piece 14, which is connected to the heating component 11. When the heating module 1 is combined with the main body 2 or the bracket 23, the heating component 11 is sent into the main body 2 or the bracket 23 through the connecting piece 14. When the heating module 1 is removed from the main body 2 or the bracket 23, the heating component 11 is taken out of the main body 2 or the bracket 23 through the connecting piece 14.

[0057] You can refer to Figure 3-Figure 8 The connector 14 is disposed around the first accommodating cavity 12, and at least a portion of the aerosol generating product can be retained in the connector 14. The connector 14 can connect the heating assembly 11 and the end cap 13, so that the heating assembly 11 can move synchronously with the end cap 13 relative to the body 2. More specifically, the connector 14 can connect the tube 133 and the heating assembly 11.

[0058] 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 product 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 product.

[0059] 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.

[0060] The inner diameter of at least part of the first connecting member 141 may be larger than the outer diameter of the aerosol generating product, so as to facilitate the insertion and removal of the aerosol generating product in the heating module 1 .

[0061] Based on this, we can refer to Figure 8 , the first connecting member 141 may include a fourth portion 141a and a fifth portion 141b, and compared with the fifth portion 141b, the fourth portion 141a is closer to the end cap 13, and even the fourth portion 141a can 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, and the fourth portion 141a can clamp the aerosol generating article.

[0062] In the direction of the airflow, the fifth portion 141b is located upstream of the fourth portion 141a, so when the air heated by the heating component 11 flows along the airflow direction and releases heat, the temperature of the fifth portion 141b will be higher than the temperature of the fourth portion 141a, and the temperature of the aerosol-generating product surrounded by the fifth portion 141b may be higher than the temperature of the aerosol-generating product surrounded by the fourth portion 141a. In order to prevent the aerosol-generating product surrounded by the fifth portion 141b from overheating, the inner diameter of the fifth portion 141b can be made larger than the outer diameter of the aerosol-generating product, so that when the aerosol-generating product is accommodated in the first accommodating chamber 12, there is no contact between the fifth portion 141b and the aerosol-generating product, and the air between the fifth portion 141b and the aerosol-generating product can form an air heat insulation layer, which helps to prevent the aerosol-generating product surrounded by the fifth portion 141b from being burnt.

[0063] In order to reduce the temperature gradient on the first connector 141 and ensure that the aerosol generating article surrounded by the first connector 141 is heated uniformly, the first connector can be made of a thermally conductive material. A thermally conductive material can be understood as a material having a thermal conductivity of at least 10 W / (m·k) at 23°C and a relative humidity of 50%, preferably at least 40 W / (m·k), and more preferably at least 100 W / (m·k). Specifically, the first connector 141 is formed of a material having a thermal conductivity of at least 40 W / (m·k) at 23°C and a relative humidity of 50%, preferably at least 100 W / (m·k), more preferably at least 150 W / (m·k), and most preferably at least 200 W / (m·k). 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.

[0064] The first connecting member 141 is made of heat-conducting material, so that the upstream and downstream of the aerosol generating product surrounded by the first connecting member 141 can be fully heated, which helps to fully utilize the aerosol generating product and improve the smoking taste.

[0065] As an example, the first connecting member 141 connects the heating component 11 and the end cover 13. For example, Figure 4 and Figure 5 The first connecting member 141 is configured as a hollow tube, and the interior of the first connecting member 141 may have a first accommodating chamber 12 and a third accommodating chamber that are fluidly connected. The first accommodating chamber 12 is used to receive at least a portion of the aerosol generating product, and at least a portion of the heating component 11 is disposed in the third accommodating chamber.

[0066] As an example, the connecting member 14 may include a second connecting member 142 in addition to the first connecting member 141, and the second connecting member 142 connects the first connecting member 141 and the heating assembly 11. Figure 7 and Figure 8 , the second connecting member 142 is configured as a hollow tube, at least a portion of the first connecting member 141 may be disposed in the second connecting member 142, and at least a portion of the heating assembly 11 may be disposed in the second connecting member 142. In this example, there may be no contact between the heating assembly 11 and the first connecting member 141, but of course, this does not exclude an example in which the heating assembly 11 may be connected to the first connecting member 141.

[0067] The second connecting member 142 can insulate at least part 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.

[0068] The second connector 142 may be made of a heat-insulating material, which refers to a material having a thermal conductivity of less than 100 W / (m·K) at 23°C and a relative humidity of 50%, preferably less than 40 W / (m·K) or less than 10 W / (m·K). For example, the heat-insulating material may be made of at least one of a PAEK material, a PI material, or a PBI material, wherein the PAEK material includes PEEK, PEKK, PEKEKK, or PEK material. For example, the heat-insulating material may include glass fiber, glass felt, ceramic, silica, alumina, carbon, and ore, or any combination thereof.

[0069] 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).

[0070] As an example, see Figure 6 and Figure 8 , the connecting member 14 includes a second connecting member 142 and a third connecting member 143, at least a part of the heating assembly 11 is disposed in the third connecting member 143, and the second connecting member 142 connects the end cover 13 and the third connecting member 143. In this example, the heating module 1 may not have the first connecting member 141. Or in this example, please refer to Figure 6-Figure 8 , the heating module 1 may still have the first connecting member 141.

[0071] The third connector 143 can withstand a high temperature of 300°C or above, and the third connector 143 can be made of a heat-insulating material, or the third connector 143 can be made of a material with a high heat capacity. The material with a high heat capacity can be a material with a specific heat capacity of at least 0.5 J / (g·K), such as at least 0.7 J / (g·K), such as 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 felt, ceramic, silica, alumina, carbon and ore, or any combination thereof.

[0072] When the first connecting member 141 and the second connecting member 142 are provided at the same time, at least one of the first connecting member 141 and the second connecting member 142 can be connected to the end cover 13. Figure 6 and Figure 8 In the illustrated embodiment, the first connecting member 141 and the second connecting member 142 are both connected to the end cover 13 . Specifically, the first connecting member 141 and the second connecting member 142 are both connected to the pipe portion 133 .

[0073] In which, there may 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 may be a gap connection, so that the air in the insertion port 131 may 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, thereby forming an air insulation layer between the first connecting member 141 and the second connecting member 142, and the air insulation layer at least surrounds the fourth portion 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 133 is located upstream of the connection gap between the first connector 141 and the tube 133, so that the second portion 1332 can be closely attached to the aerosol generating product for at least one week, so that the second portion 1322 cooperates with the aerosol generating product to prevent air from entering the connection gap between the first connector 141 and the tube 1332, and further prevent air from entering the gap 15 between the first connector 141 and the second connector 142, so that when the aerosol generating product is combined in 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, so as to reduce convection in the air insulation layer and increase the heat preservation and heat 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 mandatory.

[0074] When the heating module 1 has the first connecting member 141, at least a portion of the heating component 11 may be disposed outside the first connecting member 141. Figure 6 and Figure 8In the illustrated embodiment, the heating assembly 11 is completely located outside the first connecting member 141 .

[0075] In such Figure 3 and Figure 5 In the illustrated embodiment, the heating assembly 11 is almost completely located within the first connecting member 141 .

[0076] The porous member 111 includes an upstream end 111d and a downstream end, the air inlet end 111b is opened at the upstream end 111d, and the air outlet end 111c is opened at the downstream end. With the insertion port 131 located at the upper end of the aerosol generating device as a position reference, the lower end of the connecting member 14 is open, so that the upstream end 111d of the porous member 111 and the air inlet end 111b opened on the upstream end 111d are exposed. Figure 4 and 5 In the embodiment shown, the upstream end 111d protrudes out of the connecting member 14, so that the upstream end 111d of the porous member 111 and the air inlet end 111b opened on the upstream end 111d are exposed. It is understood that the upstream end 111d can also be made flush with the lower end of the connecting member 14, or as Figure 7 and Figure 8 As shown, the upstream end 111d is located inside the connecting member 14 and a gap is provided between the upstream end 111d and the lower end of the connecting member 14 to expose the upstream end 111d and the air inlet end 111b opened on the upstream end 111d.

[0077] It should be noted that it is optional but not mandatory to act on the end cover to make the heating module removable from the main body or the bracket. The heating module can also be driven to be removed from the main body or the bracket by applying force to other parts of the heating module. The other parts are called force-bearing parts, and the connecting piece can connect the force-bearing parts and the heating assembly.

[0078] In one embodiment, the heating component 11 includes a susceptor 16 that can generate heat in a changing magnetic field. When used herein, the term "susceptor" refers to a material that can convert electromagnetic energy into heat. When located in a changing electromagnetic field, the eddy currents and hysteresis induced in the susceptor 16 can cause heating of the susceptor 16. In such embodiments, the susceptor 16 is designed to be engaged with an aerosol generating device including a magnetic field generator 22. The magnetic field generator 22 generates a changing magnetic field to heat the susceptor 16 located in the changing magnetic field. When in use, the susceptor 16 is located in the changing magnetic field generated by the magnetic field generator 22. Among them, the magnetic field generator 22 is electrically connected to the power supply component 21, and the power supply component 21 provides the magnetic field generator 22 with a current that generates a changing magnetic field. The magnetic field generator 22 may include one or more induction coils that generate a changing magnetic field, and the one or more induction coils may surround the susceptor 16. In one embodiment, the aerosol generating device is capable of generating a changing magnetic field between 1 and 30 MHz, such as between 2 and 10 MHz, such as 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.

[0079] The susceptor may include metal or carbon. In one embodiment, the susceptor may include ferromagnetic material, such as ferrite, ferromagnetic steel or stainless steel. In one embodiment, the susceptor includes nickel-iron alloy. In one embodiment, the susceptor includes 400 series stainless steel, and 400 series stainless steel includes 410 grade, 420 grade or 430 grade stainless steel. The carbon includes graphite, graphene or graphite alloy.

[0080] As an example, at least a part of the porous member is constituted by a susceptor, that is, at least part of the pores may be opened on the susceptor.

[0081] As an example, see Figure 5 and Figure 8 , the susceptor 16 is combined with the porous member 111, and the porous member 111 heats up by absorbing the heat released by the susceptor 16, and then the porous member 111 releases the heat to heat the air flowing through the pores 111a. Based on this, the porous structure 111 can be made of a heat-conducting material such as graphite, graphene, graphite alloy or metal. Alternatively, the porous structure 111 can be made of a material with high heat capacity.

[0082] 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 1111 .

[0083] The magnetic field generator can be combined with the heating module, so that the magnetic field generator can be removed from the body or the bracket together with the heating film group. When the magnetic field generator is combined with the heating module, the heating module also includes a first electrode electrically connected to the magnetic field generator, and the body or the bracket is provided with a second electrode electrically connected to the power supply component. When the heating module is combined with the body or the bracket, the first electrode abuts against the second electrode, so that the first electrode can draw electricity from the second electrode, thereby providing the magnetic field generator with electric energy to generate a changing magnetic field; wherein the abutment between the first electrode and the second electrode is detachable, so as not to affect the removal of the heating module from the body or the bracket.

[0084] It should be noted that, in other embodiments, the heating module includes a first electrode, the heating assembly includes a resistive heating element electrically connected to the first electrode, the main body or the bracket includes a second electrode, and when the heating module is combined with the main body or the bracket, the first electrode abuts against the second electrode, so that the first electrode can draw electricity from the second electrode, and then provide electrical energy for the resistive heating element to generate Joule heat. In this embodiment, the heating module may not include a sensor; wherein the abutment between the first electrode and the second electrode is detachable, so as not to affect the removal of the heating module from the main body.

[0085] You can refer to Figure 5 and Figure 8 , the magnetic field generator 22 can be combined with 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 combined with the body 2 or the bracket 23, at least a part of the heating component 11, such as the susceptor 16, is in the magnetic field coverage of the magnetic field generator 22.

[0086] When the heating module 1 is combined with the body 2 or the bracket 23, as an example, please refer to Figure 3 , Figure 5 , Figure 6 and Figure 8 The bracket 23 has a second accommodating cavity 231 formed inside, and the heating module 1 is at least partially accommodated in 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 to prevent aerosols, condensed liquids, 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 on the inner side of the bracket 23, and the magnetic field generator 22 includes an induction coil, which is wound on the outer side of the bracket 23.

[0087] 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 .

[0088] In one embodiment, with the insertion port 131 located at the upper end of the aerosol generating device as a position reference, the bracket 23 includes a first bracket 232 arranged below the heating module 1, at least a portion of the first bracket 232 can extend along the radial direction of the first accommodating cavity 12, and at least a portion of the first bracket 232 can define at least a portion of the boundary of the bottom of the second accommodating cavity 231. The heating component 11 and the first bracket 232 are spaced apart from each other, so that the liquid spreading to the air inlet end 111b of the porous member 111 will not be retained at the air inlet end 111b due to the first bracket 232, thereby blocking the pore 111a or affecting the air entering the pore 111a. It is beneficial to discharge the liquid in the pore 111a as soon as possible to prevent the pore 111a from being blocked. The heating module 1 can be removed from the body 2, and then the liquid and grease accumulated on the first bracket 232 can be cleaned to prevent the first bracket 232 and the porous member 111 from being connected by liquid, and to prevent the liquid on the first bracket 232 from being too close to or even immersing the upstream end 111d of the porous member 111.

[0089] The air inlet end 111b and the first bracket 232 may be separated by only air, that is, Figure 3 and Figure 6 As shown, there are no other structural components between the air inlet end 111b and the first bracket 232, or in the orthographic projection along the axial downward direction of the first accommodating chamber 12, the projection of other components arranged between the heating module 1 and the first bracket 232 is located at the periphery of the orthographic projection of all the air holes 111a, and the connecting member 14 connecting the heating component 11 will not extend between the air inlet end 111b and the first bracket 232, and in the orthographic projection along the axial downward direction of the first accommodating chamber 12, the orthographic projection of the connecting member 14 does not overlap with the orthographic projection of any air hole 111a. This prevents the liquid from accumulating and forming grease between the air inlet end 111b and the connecting member 14 to block the air holes 111a, and prevents the liquid from accumulating and forming grease between the air inlet end 111b and the first bracket 232 to block the air holes 111a.

[0090] As an example, see Figure 5 and Figure 8 The first bracket 232 seals the bottom of the second accommodating chamber 231, so that the condensed liquid on the side wall of the second accommodating chamber 231 and the liquid in the porous member 111 can be collected on the first bracket 232, and the first bracket 232 can prevent the aerosol generating device from leaking liquid. At the same time, the first bracket 232 can also isolate the power supply component 21 and the second accommodating chamber 231, prevent aerosol from contaminating and corroding the power supply component 21, and is beneficial to protecting the power supply component 21.

[0091] 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 helps to reduce the energy consumption of the aerosol generating device.

[0092] In such Figure 5 and Figure 8 In the illustrated embodiment, a cavity 24 is formed on the side of the first bracket 232 facing away from the second accommodating cavity 231, and an air insulation layer may be formed in the cavity 24, thereby further insulating the heating assembly 111 and the second accommodating cavity 231. At least a partial boundary of the cavity 24 may be defined by the first bracket 232.

[0093] As an example, see Figure 5 and Figure 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 chamber 12 and defines a partial boundary of the second accommodating chamber 231. The second bracket 233 may 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 may be arranged between the second bracket 233 and the heating module 1. Therefore, before the air enters the pore 111a of the heating component 11, it first flows along the outer wall of the heating module 1, thereby preheating the air entering the pore 111a, which helps to make full use of the energy released by the heating component 11 and prevent the surface temperature of the aerosol generating device from being too high.

[0094] 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.

[0095] The above-mentioned aerosol generating device and heating module can accommodate at least a part of the aerosol generating product. The heating module includes a heating component capable of heating the air. The heating module is removably connected to the main body, and when the heating module is removed, the air inlet end of at least part of the air holes on the heating component is exposed, so that when the heating component is blocked, the heating module can be replaced, or after removing the heating module, the exposed air inlet end can be cleaned and the air holes can be unblocked.

[0096] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill 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 the present 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 7 or 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 body.

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 arranged upstream of the first receiving chamber along the airflow direction; The heating assembly comprises a porous member, wherein the porous member has 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; 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.

Images