Aerosol-generating device

Abstract

The utility model relates to an aerosol generating device, which comprises an extraction assembly, which is internally provided with an accommodating cavity capable of removably accommodating at least a part of an aerosol generating product, and comprises a transmission pipe with a spiral guide rail, a guide piece with a linear guide rail, and a bottom support with a sliding block, the sliding block is in interference fit with the spiral guide rail and the linear guide rail at the same time, the linear guide rail extends in the longitudinal direction, and the bottom support is configured to support the bottom of the aerosol generating product when the aerosol generating product is contained in the containing cavity; the main body assembly comprises a power part and a heating element extending in the longitudinal direction, and the heating element is configured to be at least partially inserted into the aerosol-generating product in the longitudinal direction so as to heat the aerosol-generating product to generate aerosol; the power piece is configured to drive the transmission pipe to rotate relative to the guide piece, and then the spiral guide rail drives the bottom support to move between the first position and the second position along the linear guide rail.

Description

Technical Field

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

[0002] An aerosol generating device is a device that enables an aerosol generating matrix to produce aerosols for a user to inhale when heated without combustion. A typical aerosol generating device includes a container for receiving at least a portion of the aerosol generating matrix and a heating element for insertion into the aerosol generating matrix to release heat within it. The container is configured to be electrically driven, causing the aerosol generating matrix to rotate relative to the heating element. This loosens the adhesive bond between the aerosol generating matrix and the heating element, facilitating the removal of the aerosol generating matrix and helping to keep the surface of the heating element clean.

[0003] However, driving the container to rotate around the heating element does not shorten the journey of removing the aerosol generating matrix from the container, nor does it shorten the bonding depth between the heating element and the aerosol generating matrix. Utility Model Content

[0004] The purpose of this application is to provide an aerosol generating apparatus that can relax the adhesive relationship between the aerosol generating article and the heating element, while shortening the bonding depth between the heating element and the aerosol generating article and shortening the stroke for removing the aerosol generating support from the receiving cavity.

[0005] At least one embodiment of this application provides an aerosol generating apparatus, the aerosol generating apparatus comprising:

[0006] An extraction assembly, internally provided with a receiving cavity capable of removably accommodating at least a portion of an aerosol-generating article, the extraction assembly including a drive tube with a helical guide rail, a guide member with a linear guide rail, and a base with a slider that simultaneously interferes with both the helical guide rail and the linear guide rail, the linear guide rail extending longitudinally, and the base configured to support the bottom of the aerosol-generating article when it is contained within the receiving cavity; and

[0007] The main component includes a power unit and a longitudinally extending heating element, the heating element being configured to be at least partially inserted longitudinally into the interior of the aerosol generating article to heat the aerosol generating article to generate aerosol; the power unit is configured to drive the transmission tube to rotate relative to the guide member, thereby driving the base to move between a first position and a second position along the linear guide rail via the helical guide rail.

[0008] As an example, the guide includes a receiving tube defining at least a partial circumferential boundary of the receiving cavity, at least a portion of the receiving tube being located within the transmission tube, and the linear guide rail being located between the base and the transmission tube.

[0009] As an example, the inner wall of the transmission tube is provided with a helical groove that does not penetrate the side wall of the transmission tube, and at least a portion of the helical groove forms the helical guide rail; and / or

[0010] One end of the linear guide extends to the end of the guide member, thus opening up to allow the slider to enter the linear guide.

[0011] As an example, the slider includes a first slider and a second slider arranged symmetrically, and the spiral guide includes a first spiral guide and a second spiral guide that are independent of each other, the first spiral guide and the second spiral guide extending spirally in opposite directions;

[0012] The first slider is configured to slide along the first helical guide rail, and the second slider is configured to slide along the second helical guide rail.

[0013] As an example, the main body component interferes with the guide to prevent the guide from rotating when the transmission tube rotates.

[0014] As an example, the extraction component further includes a first gear, and a second gear is provided on the transmission tube to mesh with the first gear. The first gear is connected to the power component so as to be driven to rotate by the power component.

[0015] As an example, the extraction assembly also includes a cover having an insertion port for inserting the aerosol-generating article into the receiving cavity;

[0016] Both the first gear and the transmission tube are configured to rotate relative to the cover, and both the first gear and the second gear are disposed adjacent to the cover.

[0017] As an example, the extraction assembly further includes a first bracket connected to and stationary relative to the cover, the first gear and the second gear being rotatably disposed between the first bracket and the cover, and a portion of the transmission tube extending away from the cover through the first bracket and outside the first bracket.

[0018] As an example, the guide connects the first bracket and / or the cover such that the guide remains relatively stationary with respect to the first bracket and / or the cover, and the guide extends outside the first bracket in a direction away from the cover.

[0019] As an example, the main component includes a transmission rod connected to the power element, the transmission rod being detachably connected to a first gear.

[0020] As an example, the extraction component further includes a first bracket, the first gear being rotatably held on the first bracket, the first bracket being located between the power member and the first gear, and the first bracket being provided with a first through hole;

[0021] When the transmission rod is connected to the first gear, a portion of the transmission rod and / or a portion of the first gear is rotatably disposed in the first through hole.

[0022] As an example, the main body assembly also includes a housing for holding the power component and a second bracket connected to the housing and shielding the power component; the second bracket has a second through hole;

[0023] When the transmission rod is connected to the first gear, a portion of the transmission rod and / or a portion of the first gear is rotatably disposed in the second through hole.

[0024] As an example, the first gear includes a first stop surface and a second stop surface;

[0025] The power component is configured to drive the transmission rod to rotate between the first stop surface and the second stop surface, and to drive the transmission rod to rotate forward and reverse. The transmission rod is configured to rotate to abut against the first stop surface when driven to rotate forward, thereby driving the first gear to rotate forward, so that the base moves from the first position to the second position. When driven to rotate in reverse, the transmission rod can rotate to abut against the second stop surface, thereby driving the first gear to rotate in reverse, so that the base moves from the second position to the first position.

[0026] As an example, the first gear includes a gear body for meshing with the second gear and a connector disposed in the central region of the gear body, the connector being used to connect with the transmission rod;

[0027] The extraction component also includes an elastic element that acts on the connector, allowing the connector to move relative to the gear body in the direction connected to the transmission rod.

[0028] As an example, the power component includes an electric motor or motor.

[0029] As an example, the extraction component can be removably connected to the main component.

[0030] The aerosol generating apparatus provided in the above embodiments has a base in the extraction component that can support the aerosol generating product, thereby driving the aerosol generating product to move along with it. The power component in the main component can drive the transmission tube in the extraction component to rotate. Then, through the interference cooperation between the threaded guide rail on the transmission tube and the slider on the base, the base is driven to move longitudinally along the linear guide rail on the guide component. This can both loosen the adhesion between the aerosol generating product and the heating element, and shorten the bonding depth between the heating element and the aerosol generating product and shorten the stroke for removing the aerosol generating support from the receiving cavity by driving the base to move longitudinally. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic diagram of the base in the first position of the aerosol generating device provided in some embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the base in the second position of the aerosol generating device provided in some embodiments of this application;

[0034] Figure 3 This is a schematic diagram showing the separation of the extraction component from the main component in some embodiments of the aerosol generating apparatus provided in this application;

[0035] Figure 4 This is an exploded schematic diagram of the extraction components provided in other embodiments of this application;

[0036] Figure 5 This is another exploded schematic diagram of the extraction components provided in some embodiments of this application;

[0037] Figure 6 This is a schematic diagram of the transmission tube provided in some embodiments of this application;

[0038] Figure 7 This is a cross-sectional view of the transmission tube provided in some embodiments of this application;

[0039] Figure 8 This is a schematic diagram of the connectors provided in some embodiments of this application;

[0040] In the picture:

[0041] 100. Aerosol generating device;

[0042] 1. Main body component; 11. Heating element; 12. Power supply; 13. Power component; 14. Transmission rod; 15. Housing; 16. Second bracket; 17. Insulation pipe; 18. Air insulation layer;

[0043] 2. Extraction component; 21. Transmission tube; 211. Spiral guide rail; 212. Support part; 213. Second gear; 22. Guide component; 221. Receiving cavity; 222. Linear guide rail; 223. Receiving tube; 224. Lateral part; 23. Base support; 231. Slider; 232. Bottom wall; 2321. Through hole; 233. Annular wall; 24. First gear; 241. Gear body; 242. Connector; 2421. First stop surface; 2422. Second stop surface; 2423. Third stop surface; 2424. Fourth stop surface; 2425. Docking cavity; 25. Cover; 251. Insertion port; 26. First bracket; 261. First through hole; 262. Slot; 27. First magnetic component; 28. Elastic component. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0046] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0048] Please refer to Figure 1 and Figure 2 This application provides an embodiment of an aerosol generating apparatus 100, which includes an extraction component 2 and a main component 1. The extraction component 2 has a receiving cavity 221 that can removably accommodate at least a portion of the aerosol generating article. The main component 1 includes a heating element 11, which is configured to be at least partially inserted longitudinally into the interior of the aerosol generating article, thereby releasing heat from the aerosol generating article to heat the aerosol generating article and generate aerosol.

[0049] As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol-generating matrix that, when heated, releases volatile compounds that can form aerosols. The aerosol-generating matrix is ​​intended to be heated, rather than burned, to release the volatile compounds that can form aerosols. Aerosols formed by heating the aerosol-generating matrix may contain fewer known hazardous components than aerosols generated by combustion or pyrolytic degradation of the aerosol-generating matrix. In some embodiments, the aerosol-generating article may be removably attached to an aerosol-generating device. The article may be disposable or reusable.

[0050] As used herein, the term "aerosol-generating matrix" refers to a matrix capable of releasing volatile substances to form inhalable aerosols. The aerosol-generating matrix may include tobacco-containing materials containing volatile tobacco flavor compounds that are released from the matrix upon heating. Specifically, the aerosol-generating matrix may be a tobacco-containing aerosol-generating matrix, preferably a solid tobacco-containing aerosol-generating matrix. Alternatively, the aerosol-generating matrix may include non-tobacco materials. The aerosol-generating matrix may also include aerosol-forming agents. Examples of suitable aerosol-forming agents are glycerol and propylene glycol.

[0051] The aerosol generating matrix may include one or more of the following: powder, granules, pellets, flakes, strips, bands, or sheets, containing one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco vein fragments, reconstituted tobacco, homogenized tobacco, extruded tobacco, and expanded tobacco.

[0052] When the aerosol generating matrix is ​​a solid aerosol generating matrix, the aerosol generating products can be cigarettes, cigarette sticks, or cigars, etc.

[0053] The aerosol generating matrix can be a liquid aerosol generating matrix. The liquid aerosol generating matrix may contain a liquid containing tobacco-containing substances with volatile tobacco flavor components, or it may contain a liquid containing non-tobacco substances. The liquid aerosol generating matrix may contain water, solvents, ethanol, plant extracts, fragrances, flavorings, or vitamin mixtures, etc. Fragrances may include areca nut extract, menthol, peppermint, spearmint oil, various fruit flavor components, etc., but are not limited to these. Flavorings may contain ingredients that can provide users with various fragrances or flavors. Vitamin mixtures may be mixtures containing at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited to these. When the aerosol generating matrix is ​​a liquid aerosol generating matrix, the aerosol generating product may be a cartridge or an atomizer, etc.

[0054] In some embodiments, the aerosol generating apparatus 100 may be described as an electrically operated aerosol generating apparatus, which is an apparatus including one or more components for supplying energy from, for example, a power supply component to heat the aerosol generating matrix to generate an aerosol.

[0055] Preferably, the main component 1 includes a power supply 12, which is electrically connected to the heating element 11 to provide electrical power for the heating element 11 to release heat. The power supply 12 may include any suitable battery, such as a lithium battery, a rechargeable battery, or a disposable battery.

[0056] In some embodiments, the heating element 11 is configured to heat to a temperature between 200°C and 440°C, thereby enabling the aerosol-generating article to generate an aerosol.

[0057] In some embodiments, the heating element 11 includes a resistive material. Suitable resistive materials include, but are not limited to: semiconductors, such as doped ceramics, conductive ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic and metallic materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel, constantan, nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as nickel-, iron-, and cobalt-based superalloys, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys. In composite materials, the resistive material may be embedded in, encapsulated by, or coated with an insulating material, or vice versa, depending on the energy transfer kinetics and desired external physicochemical properties. The heating element may include a metal etched foil that acts as an insulator between two layers of inert material. In this case, the inert material may include polyimide or mica foil, etc.

[0058] In some embodiments, the heating element 11 includes a sensor. As used herein, the term "sensor" refers to a material capable of converting electromagnetic energy into heat. When located within a changing electromagnetic field, eddy currents induced in the sensor cause heating of the sensor. In such embodiments, the sensor is designed to engage with an aerosol generating device including a magnetic field generator. The magnetic field generator generates a changing magnetic field to heat the sensor located within the changing magnetic field. In use, the sensor is located within the changing magnetic field generated by the magnetic field generator. The magnetic field generator is electrically connected to a power supply assembly that provides current to the magnetic field generator to produce the changing magnetic field. The magnetic field generator may include one or more induction coils that generate the changing magnetic field, and the one or more induction coils may surround the sensor. In one embodiment, the aerosol generating device is capable of generating a changing magnetic field between 1 and 30 MHz, for example between 2 and 10 MHz, for example between 5 and 7 MHz. In one embodiment, the aerosol generating device is capable of generating a magnetic field with a field strength (H field) varying between 1 and 5 kA / m, for example between 2 and 3 kA / m, such as about 2.5 kA / m.

[0059] The sensor may comprise a metal or carbon. In some embodiments, the sensor may comprise a ferromagnetic material, such as ferrite, ferromagnetic steel, or stainless steel. In some embodiments, the sensor comprises a nickel-iron alloy. In one embodiment, the sensor comprises 400 series stainless steel, which includes grade 410, 420, or 430 stainless steel. Different materials will dissipate different amounts of energy when positioned within an electromagnetic field with similar frequency and field strength values. Therefore, the parameters of the sensor, such as material type, length, width, and thickness, can all be varied to provide the desired power dissipation within a known electromagnetic field.

[0060] In some embodiments, the heating element 11 includes an infrared electrothermal coating formed on the surface of a substrate. The infrared electrothermal coating generates heat energy when energized, thereby generating infrared radiation of a certain wavelength, for example, infrared radiation with a wavelength of 0.75 μm to 1000 μm. Optionally, it can generate far-infrared radiation with a wavelength of 1.5 μm to 400 μm. Further optionally, it can generate far-infrared radiation with a wavelength of 8 μm to 15 μm. The infrared electrothermal coating can optionally be formed by thoroughly mixing far-infrared electrothermal ink, ceramic powder, and inorganic binder, then coating it onto the outer surface of the substrate, and then drying and curing it for a certain period of time, with a thickness of 30 μm to 50 μm. Alternatively, the infrared electrothermal coating can be formed by mixing tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride, and anhydrous copper sulfate in a certain proportion and then coating it onto the outer surface of the substrate; or it can be a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium-titanium oxide ceramic layer, or a zirconium-titanium nitride ceramic layer. The coating may be one of the following: ceramic layer, zirconium-titanium boride ceramic layer, zirconium-titanium carbide ceramic layer, iron oxide ceramic layer, iron nitride ceramic layer, iron boride ceramic layer, iron carbide ceramic layer, rare earth oxide ceramic layer, rare earth nitride ceramic layer, rare earth boride ceramic layer, rare earth carbide ceramic layer, nickel-cobalt oxide ceramic layer, nickel-cobalt nitride ceramic layer, nickel-cobalt boride ceramic layer, nickel-cobalt carbide ceramic layer, or high-silicon molecular sieve ceramic layer; the infrared electrothermal coating may also be other existing material coatings.

[0061] In some embodiments, reference may be made to Figure 4 and Figure 5 The extraction component 2 includes a base 23 configured to support the bottom of the aerosol-generating article when it is contained in the receiving cavity 221. The base 23 is configured to move between a first position and a second position.

[0062] When the base 23 is in the first position, the heating element 11 has a first engagement depth with the aerosol generating article, and the heating element 11 is configured to acquire electrical power to release heat to heat the aerosol generating article. When the base 23 is in the second position, the heating element 11 has a second engagement depth with the aerosol generating article, or the heating element 11 has withdrawn from the aerosol generating article, and the second engagement depth is less than the first engagement depth. The heating element 11 can be configured to stop acquiring electrical power for heating the aerosol generating article to generate aerosol when the base 23 leaves the first position, or the base 23 can only move from the first position to the second position after the heating element 11 stops acquiring electrical power for heating the aerosol generating article to generate aerosol.

[0063] In some embodiments, reference may be made to Figure 6 and Figure 7 The extraction component 2 includes a transmission tube 21 with a helical guide rail 211 and a guide member 22 with a linear guide rail 222. A slider 231 is mounted on the base 23. The slider 231 interferes with both the helical guide rail 211 and the linear guide rail 222. The linear guide rail 222 extends longitudinally. Therefore, when the transmission tube 21 rotates relative to the guide member 22, the slider 231 slides along the helical guide rail 211 due to the interference between the slider 231 and the helical guide rail 211, causing the base 23 to move relative to the transmission tube 21. Furthermore, due to the interference between the slider 231 and the linear guide rail 222, the base 23 moves longitudinally relative to the transmission tube 21 along the linear guide rail 222. In other words, the transmission tube 21 can drive the base 23 to move between a first position and a second position along the linear guide rail 222 on the guide member 22 via the helical guide rail 211.

[0064] In some embodiments, the main body component 1 further includes a power element 13, which is configured to drive the transmission tube 21 to rotate relative to the guide member 22, thereby driving the base 23 to move along the linear guide 222 via the helical guide rail 211.

[0065] The power unit 13 may include a manually driven power unit, so that the user can manually operate the power unit 13 to drive the transmission tube 21 to rotate relative to the guide member 22.

[0066] Preferably, the power component 13 includes an electric power component, such as a motor or electric motor. The power source 12 is electrically connected to the power component 13 to provide electrical power so that the power component 13 outputs power to drive the transmission tube 21 to rotate.

[0067] Furthermore, the main component 1 also includes a controller configured to control the power supply 12 to immediately or delay supply power to the power unit 13 after the power supply 12 stops supplying power to the heating element 11, so that the power unit 13 can be automatically started after the power supply 12 stops supplying power to the heating element 11, thereby enabling the base 23 to move automatically from the first position to the second position.

[0068] In some embodiments, reference may be made to Figure 4 and Figure 5 The guide 22 includes a receiving tube 223 that defines at least a portion of the circumferential boundary of the receiving cavity 221, at least a portion of the receiving tube 223 being located in the transmission tube 211, and a linear guide 222 being located between the base 23 and the transmission tube 21.

[0069] When the base 23 moves between the first position and the second position, the base 23 can move mainly inside the receiving tube 223 along the inner wall of the receiving tube 223.

[0070] In such Figure 4 and Figure 5 In the illustrated embodiment, the base 23 includes a bottom wall 232 and an annular wall 233 disposed on the bottom wall 232. A through hole 2321 for the heating element 11 to pass through is provided on the bottom wall 232. When the base 23 moves between a first position and a second position, the annular wall 233 is in slidable contact with the inner wall of the receiving tube 223. The end of the annular wall 233 facing away from the bottom wall 232 can abut against the bottom of the aerosol generating product when it is contained in the receiving cavity 221, thereby creating a cavity between the bottom of the aerosol generating product and the bottom wall 232. This cavity can be used to contain grease secreted by the aerosol generating product or residue that falls from the aerosol generating product. This cavity also facilitates the unobstructed entry of outside air through the air inlet on the bottom wall 232 or the aforementioned through hole 2321 into the bottom of the aerosol generating product.

[0071] The slider 231 can be set on the annular wall 233.

[0072] In some embodiments, reference may be made to Figure 6 and Figure 7 The inner wall of the transmission tube 21 is provided with a spiral groove that does not penetrate the side wall of the transmission tube, and at least a portion of the spiral groove forms the spiral guide rail 211. This prevents the backflowing aerosol from overflowing through the side wall of the transmission tube 21, helping to keep the interior of the main assembly 1 clean.

[0073] Please refer to Figure 1 and Figure 2The slider 231 is partially held within the spiral guide rail 211. The two longitudinally opposite edges of the spiral guide rail 211 are located on opposite sides of the slider in the longitudinal direction, thus supporting the slider 231 and preventing it from moving linearly in the longitudinal direction when the transmission tube 21 is not rotating. This allows the base 23 to be stably stopped in the first position, the second position, and any position in between.

[0074] In some embodiments, the slider 231 includes a symmetrically arranged first slider 2311 and a second slider 2312, and the spiral guide rail 211 includes an independent first spiral guide rail 2111 and a second spiral guide rail 2112, which extend spirally in opposite directions. The first slider 2311 is configured to slide along the first spiral guide rail 2111, and the second slider 2312 is configured to slide along the second spiral guide rail 2112. This helps to ensure the smoothness of the movement of the base 23 driven by the transmission tube 21 through the spiral guide rail 211, and can prevent the base 23 from tilting.

[0075] In some embodiments, reference may be made to Figure 4 One end of the linear guide 222 extends to the end of the guide member 22, thus opening up to allow the slider 21 to enter the linear guide 222, thereby facilitating the combination of the base 23 and the guide member 22. The other end of the linear guide 222 can be a closed end, and the slider 231 can abut against this closed end when the base 23 is in the second position.

[0076] In some embodiments, reference may be made to Figure 1 and Figure 2 The guide member 22 is at least partially disposed within the transmission tube 21. Furthermore, both the transmission tube 21 and the guide member 22 have proximal and distal ends disposed opposite to each other, and the guide member 22 is configured to be fitted into the transmission tube 21 from within the transmission tube 21. As an example, the guide member 22 further includes a transverse portion 224 disposed at the proximal end of the receiving tube 223 and extending perpendicularly to the receiving tube 223, the proximal end of the transmission tube 21 supporting the transverse portion 224. As an example, the distal end of the transmission tube 21 is provided with a support portion 212, which supports the distal end of the guide member 22.

[0077] In some embodiments, reference may be made to Figures 4-7 The extraction component 2 also includes a first gear 24, and a second gear 213 that meshes with the first gear 24 is provided on the transmission tube 21. The first gear 24 is connected to the power component 13 so that it is driven to rotate by the power component 13, thereby driving the second gear 213 and the transmission tube 21 to rotate.

[0078] Preferably, the second gear 213 and the transmission tube 21 are integrally injection molded.

[0079] In some embodiments, reference may be made to Figure 1 and Figure 2 The extraction component 2 also includes a cover 25, which has an insertion port 251 for inserting the aerosol-generated product into the receiving cavity; the first gear 24 and the transmission tube 21 are both configured to rotate relative to the cover 25, and the first gear 24 and the second gear 213 are both arranged adjacent to the cover 25.

[0080] The extraction component 2 has a proximal end and a distal end arranged opposite to each other. The distance between the first gear 24 and the proximal end of the extraction component 2 is smaller than the distance between the first gear 24 and the distal end of the extraction component 2, thereby making the first gear 24 adjacent to the cover 25. Similarly, the second gear 213 is adjacent to the cover 25.

[0081] Furthermore, the cover 25 is located near the extraction assembly 2, and the end of the transmission tube 21 opposite to the cover 25, i.e., the bottom of the transmission tube 21, is located at the far end of the extraction assembly 2. The distance between the first gear 24 and the cover 25 is smaller than the distance between the first gear 24 and the bottom of the transmission tube 21.

[0082] In some embodiments, reference may be made to Figure 4 The first gear 24 and the second gear 213 are both horizontally arranged, and their rotation plane can be perpendicular to the longitudinal direction, or their rotation axis can be parallel to the longitudinal direction.

[0083] In some embodiments, reference may be made to Figure 1 and Figure 2 The extraction assembly 2 also includes a first bracket 26 connected to and stationary relative to the cover 25. A first gear 24 and a second gear 213 are rotatably disposed between the first bracket 26 and the cover 25. A portion of the transmission tube 21 extends away from the cover 25, passing through the first bracket 26 and located outside the first bracket 26. By interfering with the cover 25 and / or the first bracket 26 with the main assembly 1, the cover 25 and the first bracket 26 can remain stationary relative to the heating element 11 when the first gear 24 and the transmission tube 21 rotate, and the cover 25 and the first bracket 26 can be prevented from rotating when the first gear 24 and the transmission tube 21 rotate. The first gear 24 is disposed between the first bracket 26 and the cover 25, so that after the extraction assembly 2 is removed from the main assembly 1, the first gear 24 and the second gear 213 can be concealed by the first bracket 26 and the cover 25.

[0084] The first gear 24 and the second gear 213 are arranged laterally, so that a step-like structure is formed between the bottom of the transmission tube 21 and a part of the first bracket 26.

[0085] In some embodiments, the main body component 1 interferes with the guide member 22 to prevent the guide member 22 from rotating when the transmission tube 21 rotates. The main body component 1 can interfere with the guide member 22 through direct or indirect physical contact, thereby preventing the guide member 22 from rotating when the transmission tube 21 rotates. The main body component 1 can also interfere with the guide member 22 through a field force, such that the driving force provided by the transmission tube 21 to the guide member 22 when the transmission tube 21 rotates is less than the field force between the main body component 1 and the guide member 22 used to prevent the guide member 22 from rotating. This field force may include a magnetic field force. For example, the main body component 1 and the guide member 22 can be kept relatively stationary through magnetic attraction.

[0086] In some embodiments, the guide 22 connects the first bracket 26 and / or the cover 25 such that the guide 22 remains relatively stationary with respect to the first bracket 26 and / or the cover 25, and the guide 22 extends outside the first bracket 26 in a direction away from the cover 25. When the first gear 24 and the transmission tube 21 rotate, the guide 22 can remain relatively stationary with respect to the heating element 11.

[0087] Furthermore, the transverse portion 224 is disposed between the cover 25 and the first bracket 26.

[0088] In some embodiments, reference may be made to Figures 1-3 The main component 1 includes a transmission rod 14 connected to the power component 13. The transmission rod 14 is connected to the first gear 24, so that the power component 13 drives the first gear 24 to rotate through the transmission rod 14.

[0089] In some embodiments, the first gear 24 is rotatably held on the first bracket 26, which is located between the power member 13 and the first gear 24, and the first bracket 26 is provided with a first through hole 261; when the transmission rod 14 is connected to the first gear 24, a portion of the transmission rod 14 and / or a portion of the first gear 24 is rotatably disposed in the first through hole 261.

[0090] Furthermore, the transmission rod 14 extends longitudinally and is rotatable within the first through hole 261. The rotatable insertion of the transmission rod 14 into the first through hole 261 causes lateral interference between the main body assembly 1 and the extraction assembly 2, thereby preventing the first support 26 from rotating when the first gear 24 rotates. Even further, at least a portion of the transmission rod 14 is removably insertable into the first through hole 261 to facilitate the removal of the extraction assembly 2 from the main body assembly 1.

[0091] In some embodiments, reference may be made to Figures 1-3The main component 1 also includes a housing 15 for holding the power component 13 and a second bracket 16 connected to the housing 15 and covering the power component 13; the second bracket 16 has a second through hole; when the transmission rod 14 is connected to the first gear 24, a portion of the transmission rod 14 and / or a portion of the first gear 24 is rotatably disposed in the second through hole.

[0092] Furthermore, the transmission rod 14 extends in a direction away from the power member 13 and protrudes from the second bracket 16 through the second perforation. Thus, after the extraction assembly 2 is removed from the main body assembly 1, the power member 13 is concealed by the second bracket 16, and at least a portion of the transmission rod 14 is exposed outside the second bracket 16. After the extraction assembly 2 is attached to the main body assembly 1, the transmission rod 14 is concealed by the extraction assembly 2.

[0093] In some embodiments, reference may be made to Figure 2 One of the first bracket 26 and the second bracket 16 is provided with a protrusion 161, and the other is provided with a slot 262. When the extraction component 2 is connected to the main component, at least part of the protrusion is fitted into the slot, so that the extraction component and the main component 1 interfere with each other in the lateral direction to prevent the first bracket 26 from rotating relative to the second bracket 16.

[0094] In some embodiments, reference may be made to Figure 4 The extraction component 2 also includes a first magnetic element 27, and the main component 1 includes a second magnetic element (not shown). When the extraction component 2 is connected to the main component 1, the first magnetic element 27 and the second magnetic element are magnetically attracted to each other, so that the extraction component 2 and the main component 1 are stably connected, and the first support 26 is prevented from rotating relative to the second support 16.

[0095] Furthermore, the first magnetic element 27 is held between the first support 26 and the cover 25, thus being shielded by the first support 26 and the cover 25, while the second magnetic element may be located on the same side of the second support 16 as the power element 13, thus being shielded by the second support 16. Either the first magnetic element 27 or the second magnetic element may include a magnet, and the other may include a magnetic article capable of being attracted by a magnet. Of course, both the first magnetic element 27 and the second magnetic element may include magnets.

[0096] In some embodiments, reference may be made to Figure 8The first gear 24 includes a first stop surface 2421 and a second stop surface 2422. The power member 13 is configured to drive the transmission rod 14 to rotate between the first stop surface 2421 and the second stop surface 2422, and to drive the transmission rod 14 to rotate forward and reverse. The transmission rod 14 is configured to rotate to abut against the first stop surface 2421 when driven to rotate forward, thereby driving the first gear 24 to rotate forward, causing the base 23 to move from a first position to a second position. When driven to rotate in reverse, the transmission rod 14 can rotate to abut against the second stop surface 2422, thereby driving the first gear 24 to rotate in reverse, causing the base 23 to move from a second position to a first position. Thus, the power member 13 can drive the base 23 to move back and forth between the first position and the second position by driving the transmission rod 14 to rotate forward and in reverse.

[0097] Furthermore, the transmission rod 14 can only abut against one of the first stop surface 2421 and the second stop surface 2422 at a time, thus delaying the timing of the first gear 24 changing direction relative to the timing of the transmission rod 14 changing direction, or delaying the timing of the first gear 24 starting to rotate relative to the timing of the transmission rod 14 starting to rotate. This facilitates driving the first gear 23 to rotate only after the transmission rod 14 has stabilized in a certain direction.

[0098] Furthermore, the rotation angle of the transmission rod 14 between the first stop surface 2421 and the second stop surface 2422 is greater than or equal to 90°.

[0099] In such Figure 3 In the illustrated embodiment, the cross-section of the end of the transmission rod 14 away from the power member 13 is approximately rectangular. Specifically, the end of the transmission rod 14 away from the power member 13 includes a first portion 141 and a second portion 142 disposed opposite to each other. The first gear 24 also includes a third stop surface 2423 and a fourth stop surface 2424. The first portion 141 is located between the first stop surface 2421 and the second stop surface 2422, and the second portion 142 is located between the third stop surface 2423 and the fourth stop surface 2424. In the initial stage of the transmission rod 14 rotating in a certain direction, the first portion 141 can rotate between the first stop surface 2421 and the second stop surface 2422, and the second portion 142 can rotate between the third stop surface 2423 and the fourth stop surface 2424. When the first portion 141 abuts against the first stop surface 2421, the second portion 142 abuts against the fourth stop surface 2424. When the first part 141 abuts against the second stop surface 2422, the second part 142 abuts against the third stop surface 2423. Thus, the transmission rod 14 drives the first gear 24 to rotate forward by the first part 141 abutting against the first stop surface 2421 and the second part 142 abutting against the fourth stop surface 2424, and drives the first gear 24 to rotate in reverse by the first part 141 abutting against the second stop surface 2422 and the second part 142 abutting against the third stop surface 2423. This helps to ensure even force distribution on the first gear 24.

[0100] Furthermore, the first part 141 rotates at an angle of less than 180° between the first stop surface 2421 and the second stop surface 2422. The second part 142 rotates at an angle of less than 180° between the third stop surface 2423 and the fourth stop surface 2424.

[0101] Furthermore, the first part 141 rotates at an angle greater than or equal to 90° between the first stop surface 2421 and the second stop surface 2422, and the second part 142 rotates at an angle greater than or equal to 90° between the third stop surface 2423 and the fourth stop surface 2424.

[0102] In some embodiments, reference may be made to Figure 1 and Figure 2 The first gear 24 includes a gear body 241 for meshing with the second gear 213 and a connector 242 disposed in the central region of the gear body 241. The connector 242 is used to connect to the transmission rod 14, so that the transmission rod 14 drives the gear body 241 to rotate through the connector 242.

[0103] Furthermore, the connector 242 has a mating cavity 2425 for inserting the transmission rod 14. A first stop surface 2421 and a second stop surface 2422 can be disposed within this mating cavity 2425. Of course, a third stop surface 2423 and a fourth stop surface 2424 can also be disposed within this mating cavity 2425.

[0104] In some embodiments, the extraction component 2 further includes an elastic element 28, which acts on the connector 242 so that the connector 242 can move in the central region of the gear body 241 along the direction connected to the transmission rod 14. Specifically, the connector 242 can move longitudinally in the central region of the gear body 241 to reduce the accuracy requirements of the longitudinal dimension of the transmission rod 14, which helps to improve the processing efficiency of the transmission rod 14 and the assembly efficiency of the transmission rod 14 and the power component 13, and can also reduce production costs. Further, one end of the elastic element 28 abuts against the cover 25, and the other end abuts against the connector 242. When the connector 242 moves longitudinally inside the gear body 241, the longitudinal coordinate position of the gear body 241 can remain unchanged so that the gear body 2421 can maintain a stable meshing connection with the second gear 213.

[0105] Furthermore, one can refer to Figure 1A raised ring is provided on the surface of the cover 25 facing the first bracket 26. The raised ring can be inserted into the gear body 241, and the gear body 241 can rotate about the central axis of the raised ring. A portion of the elastic member 28 is located in the raised ring to reduce the lateral twisting of the elastic member 28, thereby preventing the lateral coordinate position of the gear body 241 from changing, and further enabling the gear body 241 to maintain a stable meshing connection with the second gear 213.

[0106] Preferably, the elastic element 28 includes a spring.

[0107] In some embodiments, reference may be made to Figure 3 The transmission rod 14 is detachably connected to the first gear 24. In some embodiments, reference can be made to... Figure 3 Extraction component 2 and main component 1 can be detachably connected.

[0108] In some embodiments, reference may be made to Figures 1-3 The main component 2 also includes a heat insulation tube 17. When the extraction component 2 is connected to the main component 1, the receiving cavity 221 is located in the heat insulation tube 17. Furthermore, an air insulation layer 18 is provided between the heat insulation tube 17 and the shell 15 to further insulate the receiving cavity 221 and prevent the shell 15 from becoming too hot to touch.

[0109] Preferably, the cover 25 is snapped together with the first bracket 26.

[0110] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating device, characterized by, The extraction assembly comprises a receiving cavity capable of removably receiving at least partially an aerosol generating article, the extraction assembly comprising a transmission tube having a helical guide, a guide piece having a linear guide, and a bottom support provided with a slider capable of interfering with the helical guide and the linear guide, the linear guide extending in the longitudinal direction, the bottom support being configured to support a bottom portion of the aerosol generating article when the aerosol generating article is received in the receiving cavity. The main body assembly comprises a power source and a heating element extending in the longitudinal direction, the heating element being configured to be inserted at least partially into the interior of the aerosol generating article in the longitudinal direction to heat the aerosol generating article to generate aerosol, the power source being configured to drive the transmission tube to rotate relative to the guide piece, thereby driving the bottom support to move along the linear guide between a first position and a second position via the helical guide. The guide piece comprises a receiving tube defining at least a partial circumferential boundary of the receiving cavity, at least a portion of the receiving tube being located in the transmission tube, and the linear guide being located between the bottom support and the transmission tube. The inner wall of the transmission tube is provided with a helical groove that does not penetrate the side wall of the transmission tube, at least a portion of the helical groove forming the helical guide; and / or 2. The aerosol-generating device of claim 1, wherein, One end of the linear guide extends to the end of the guide piece to be open to allow the slider to enter the linear guide.

3. The aerosol-generating device of claim 1, wherein, The slider comprises a first slider and a second slider symmetrically arranged, the helical guide comprises a first helical guide and a second helical guide independent of each other, the first helical guide and the second helical guide extending in opposite directions; The first slider is configured to slide along the first helical guide, and the second slider is configured to slide along the second helical guide.

4. The aerosol-generating device of claim 1, wherein, The main body assembly interferes with the guide piece to prevent the guide piece from rotating when the transmission tube rotates. The extraction assembly further comprises a first gear, the transmission tube is provided with a second gear engaged with the first gear, the first gear is connected with the power source to be driven to rotate by the power source.

5. The aerosol-generating device of claim 1, wherein, The extraction assembly further comprises a cover, the cover is provided with an insertion opening for inserting the aerosol generating article into the receiving cavity; 6. The aerosol-generating device of claim 1, wherein, The first gear and the transmission tube are both configured to rotate relative to the cover, and the first gear and the second gear are both arranged adjacent to the cover.

7. The aerosol-generating device of claim 6, wherein, The extraction assembly further comprises a first support connected with the cover and arranged to be relatively stationary with the cover, the first gear and the second gear are rotatably arranged between the first support and the cover, and a portion of the transmission tube extends away from the cover to pass through and be located outside the first support. The guide piece is connected with the first support and / or the cover, so that the guide piece is arranged to be relatively stationary with the first support and / or the cover, and the guide piece extends away from the cover outside the first support.

8. The aerosol-generating device of claim 7, wherein, ​ 9. The aerosol-generating device of claim 8, wherein, ​ 10.The aerosol-generating device of claim 6, wherein, The main body assembly comprises a transmission rod connected with the power element, and the transmission rod is detachably connected with the first gear. 11.The aerosol-generating device of claim 10, wherein, The extraction assembly further comprises a first support, the first gear is rotatably held on the first support, the first support is located between the power element and the first gear, and the first support is provided with a first through hole; When the transmission rod is connected with the first gear, a part of the transmission rod and / or a part of the first gear is rotatably arranged in the first through hole. 12.The aerosol-generating device of claim 10, wherein, The main body assembly further comprises a housing for holding the power element and a second support connected on the housing and shielding the power element, and the second support is provided with a second through hole; When the transmission rod is connected with the first gear, a part of the transmission rod and / or a part of the first gear is rotatably arranged in the second through hole. 13.The aerosol-generating device of claim 10, wherein, The first gear comprises a first stop surface and a second stop surface; The power element is configured to drive the transmission rod to rotate between the first stop surface and the second stop surface, and drive the transmission rod to rotate forward and reverse, the transmission rod is configured to rotate to abut against the first stop surface when driven to rotate forward, thereby driving the first gear to rotate forward, so that the base moves from the first position to the second position, and rotate to abut against the second stop surface when driven to rotate reverse, thereby driving the first gear to rotate reverse, so that the base moves from the second position to the first position. 14.The aerosol-generating device of claim 10, wherein, The first gear comprises a gear body for engaging with a second gear and a connecting piece arranged at a central region of the gear body, and the connecting piece is used for connecting with the transmission rod; The extraction assembly further comprises an elastic element, and the elastic element acts on the connecting piece, so that the connecting piece can move relative to the gear body in a direction connected with the transmission rod.

15. The aerosol-generating device of claim 1, wherein, The power element comprises an electric motor or a motor.

16. Aerosol-generating device according to any of the claims 1 to 15, characterized in that, The extraction assembly is removably connected with the main body assembly.

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