Aerosol-generating device with heater mounted on sealing member

Abstract

An aerosol-generating device (100) for use with an aerosol-generating article (1) is provided, the aerosol-generating device comprising: a housing (102) having a recess (108) configured to receive at least a portion of the aerosol-generating article (1); a heater assembly (120) comprising: a heater (121) configured to heat the aerosol-generating article (1) to generate an aerosol; and a sealing member (130) configured to seal at least a portion of the aerosol-generating article (1) within the recess (108) during aerosolisation; the heater (121) is mounted on the sealing member (130); the sealing member (130) comprises a sealing frame (130) having a perimeter structure around an aperture (132), the sealing frame (130) being configured to seal a perimeter of the recess (108); the heater extends across the aperture (132); and the heater assembly (120) further comprises a clamping member (134) which is resiliently urged towards the sealing frame (130), the clamping member (134) being shaped such that at least a portion of the clamping member is accessible to the aperture (132) to urge the heater (121) towards the recess (108).

Description

Technical Field

[0001] This disclosure relates to an aerosol generating apparatus for use with an aerosol generating article. In particular, but not exclusively, this disclosure relates to a handheld, electrically operated aerosol generating apparatus for heating an aerosol forming matrix to generate an aerosol and for delivering the aerosol to a user's mouth. Background Technology

[0002] Aerosol-generating articles, such as those in which an aerosol-generating matrix containing a tobacco matrix is ​​heated rather than burned, are known in the art. In heated aerosol-generating articles, aerosols are generated by heating the aerosol-generating matrix.

[0003] One type of aerosol generation system is an electrically operated smoking system. Known handheld electrically operated smoking systems typically include an aerosol generation device comprising a rechargeable battery, control electronics, and an electric heater for heating an aerosol generation article specifically designed for use with the aerosol generation device. In some instances, the aerosol generation article comprises an aerosol generation matrix, such as a tobacco stick or tobacco rod, and when the aerosol generation article is inserted into the aerosol generation device, a heater contained within the aerosol generation device is inserted into or positioned around the aerosol generation matrix.

[0004] A heating element can be incorporated into an aerosol generating apparatus to generate inhalable vapor. Such an apparatus heats the aerosol generating matrix contained within an aerosol generating article without burning the aerosol generating matrix. In doing so, the aerosol generating matrix can generate an aerosol, which can then be delivered to a user.

[0005] Such aerosol-generating articles can be in the form of conventional cigarettes. In this case, the aerosol-generating matrix can be wrapped in cigarette paper. This method may be suitable when the aerosol-generating matrix comprises strands or strips of material (e.g., strands of cast tobacco or strands of shredded tobacco).

[0006] However, this method may not be effective in preserving other forms of aerosol generating matrix, such as particulate or powdered aerosol generating matrices. Such aerosol generating articles may be susceptible to leakage of the aerosol generating matrix during their storage, handling, and use. Leakage of the aerosol generating matrix can be exacerbated by high ambient temperatures and humidity. Loss of the aerosol generating matrix through leakage can adversely reduce the lifespan of aerosol generating articles that include the aerosol generating matrix. Leakage of the aerosol generating matrix can negatively impact the overall performance of the aerosol generating article. For example, leakage of the aerosol generating matrix can negatively affect the consistency of the inhalable aerosols generated by an aerosol generating system that includes the aerosol generating article.

[0007] To provide an aerosol generating article in which the loss or leakage of the aerosol generating matrix is ​​reduced or prevented even when the aerosol generating article is heated to the temperature required to generate aerosols from the aerosol generating matrix, an aerosol generating article comprising a container of the aerosol generating matrix can be provided. Such an aerosol generating article may be able to retain different forms of the aerosol generating matrix, such as granular or powdered aerosol generating matrix. Such aerosol generating articles comprising containers can be easily handled and operated by the consumer when used with a suitable aerosol generating apparatus.

[0008] However, existing aerosol generation apparatuses may not be suitable for heating aerosol generation articles that include a container containing an aerosol generation matrix. For example, inserting a heating element into the aerosol generation article including the container may adversely cause leakage of the aerosol generation matrix from the container. Furthermore, existing aerosol generation apparatuses may allow aerosols to leak from the aerosol generation article via routes other than the aerosol outlet used for delivering the aerosols to the user. Additionally, existing heaters configured for external heating of the aerosol generation article may not provide effective heating sufficient to generate a consistent aerosol from the container-containing aerosol generation article. Summary of the Invention

[0009] It is desirable to provide an aerosol generating apparatus suitable for heating an aerosol generating article comprising an aerosol generating matrix container. It is also desirable to provide an aerosol generating apparatus that reduces aerosol leakage during heating and provides improved heating of the aerosol generating article.

[0010] According to an example of this disclosure, an aerosol generating apparatus is provided for use with an aerosol generating article. The aerosol generating apparatus may include a housing. The housing may have a recess configured to receive at least a portion of the aerosol generating article. The aerosol generating apparatus may include a heater assembly. The heater assembly may include a heater configured to heat the aerosol generating article to generate an aerosol. The heater assembly may include a sealing member configured to seal at least a portion of the aerosol generating article within the recess during aerosolization. The heater may be mounted on the sealing member.

[0011] According to an example of this disclosure, an aerosol generating apparatus is provided for use with an aerosol generating article. The aerosol generating apparatus includes a housing having a recess configured to receive at least a portion of the aerosol generating article. The aerosol generating apparatus includes a heater assembly. The heater assembly includes a heater configured to heat the aerosol generating article to generate an aerosol. The heater assembly also includes a sealing member configured to seal at least a portion of the aerosol generating article within the recess during aerosolization. The heater is mounted on the sealing member.

[0012] As used herein, the term "sealing member" refers to a component of the heater assembly that significantly reduces or preferably substantially prevents aerosol leakage from the recess during heating or aerosolization, except via a dedicated aerosol outlet. Airflow through the recess is still permitted during aerosolization, provided it follows a dedicated airflow path, for example, from an air inlet entering the recess to an aerosol outlet exiting the recess.

[0013] The advantage of providing a heater assembly that includes a sealing member is that it can seal the recess during aerosolization and helps reduce the escape of aerosols from the recess during aerosolization. This retains more aerosols for user consumption and reduces the possibility of aerosol leakage into other parts of the aerosol generation device and condensation therein (which may be undesirable).

[0014] Mounting the heater on a sealing component has the advantage of improving thermal contact between the heater and the aerosol-generating article during heating. This helps improve heating of the aerosol-generating article, resulting in more consistent aerosol production and an enhanced user experience. It also improves the energy efficiency of the aerosol-generating device.

[0015] At least a portion of the aerosol-generating article sealed by the sealing member may be a part of the aerosol-generating article comprising an aerosol-forming matrix. At least a portion of the aerosol-generating article sealed by the sealing member may be a container or compartment of the aerosol-generating article. The sealing member may seal around the edge of the aerosol-generating article. Alternatively, the sealing member may seal the entire aerosol-generating article within a recess.

[0016] The heater can be mounted on the surface of the sealing member facing the recess.

[0017] The heater can be resiliently mounted on the sealing member, such that the heater is resiliently pushed into the recess. Advantageously, this arrangement helps to improve the thermal contact between the heater and the aerosol-generating article when it is received in the recess.

[0018] The heater can be elastically mounted on the sealing member by means of one or more biasing elements. The biasing element can be a spring, such as a coil spring.

[0019] The sealing member can be elastically mounted on the housing, allowing the heater to be elastically pushed towards the recess. Advantageously, this arrangement helps improve the seal between the sealing member and the outer periphery of the recess.

[0020] The sealing member can be elastically mounted on the housing by means of one or more biasing elements. The biasing element can be a spring, such as a coil spring.

[0021] The sealing member can be configured to deform at least a portion of the aerosol-generating article to seal the aerosol-generating article within the recess. Advantageously, by deforming at least a portion of the aerosol-generating article, the seal between the sealing member and the recess can be improved. This arrangement allows for the closure of any gaps between the aerosol-generating article and the periphery of the recess.

[0022] The heater can protrude from the sealing member in a direction toward the recess to allow direct contact between the heater and the aerosol-generating article. Advantageously, this arrangement helps improve the thermal contact between the heater and the aerosol-generating article because the protruding portion of the heater is compressed into the aerosol-generating article.

[0023] The heater can be integrated with the sealing member. The sealing member and the heater can be formed as a single unit. Advantageously, this provides a strong and mechanically robust connection between the sealing member and the heater. This arrangement reduces the number of parts in the heater assembly, which simplifies manufacturing.

[0024] The heater can be securely attached to the sealing member. Any suitable method can be used to securely attach the heater to the sealing member. For example, the heater can be adhered to the sealing member. The heater can be pinned to the sealing member. The heater can be potted into the sealing member. The heater can be clamped into the sealing member.

[0025] The heater can be substantially planar or flat. In particular, the heating surface of the heater can be substantially planar or flat. As used herein, "substantially planar" or "substantially flat" means primarily formed in a single plane, i.e., the heater's extension in two orthogonal dimensions is greater than its extension in a third orthogonal dimension. Advantageously, planar heaters are easy to handle during manufacturing. Furthermore, planar heaters allow for effective thermal contact with aerosol-generating articles having at least one flat or planar surface.

[0026] The sealing member may include a sealing frame having a peripheral structure surrounding the orifice. The sealing frame is configured to seal the periphery of the recess. Advantageously, this arrangement effectively seals the periphery of the recess. Furthermore, the orifice can be used to receive additional components.

[0027] The heater can extend across the orifice. Advantageously, this arrangement allows for heating of the area within the periphery of the sealing frame and can provide effective heating to the aerosol-generating article.

[0028] The heater assembly may also include a clamping member. The clamping member can be resiliently pushed toward the sealing frame. The clamping member may be shaped such that at least a portion of the clamping member can enter an orifice to push the heater toward the recess. Advantageously, by providing a clamping member resiliently biased toward the sealing frame, the sealing of the recess can be improved. Furthermore, by pushing the heater toward the recess, the thermal contact between the heater and the aerosol-generating article can be improved.

[0029] The clamping member may also include an elastic element. The elastic element may be disposed on the heater-facing surface of the clamping member. The elastic element may be configured to contact the heater to apply additional compressive force to the heater and the aerosol-generating article. The elastic element may include an elastic strip. The elastic element may extend transversely to the longitudinal dimension of the heater. The elastic element may be formed of any suitable heat-resistant elastomer. The elastic element may be formed of silicone.

[0030] The heater assembly is movable between a sealed position and an unsealed position. In the sealed position, the sealing member seals the recess; in the unsealed position, the sealing member is spaced apart from the recess to allow the aerosol-generating article to be inserted into or removed from the recess. Advantageously, this arrangement provides a convenient method for inserting or removing the aerosol-generating article. Furthermore, when the heater assembly is in the unsealed position, this arrangement allows the heater assembly to move relative to the recess.

[0031] The aerosol generating apparatus may include a mechanism for moving the heater assembly between a sealed position and an unsealed position.

[0032] The housing may include a first housing portion and a second housing portion. The first housing portion may include a recess. The second housing portion may include a heater assembly. The first housing portion is movable relative to the second housing portion between an open position in which the recess is exposed and a closed position in which the recess is enclosed by the second housing portion.

[0033] When the first housing portion and the second housing portion are moved to the closed position, the heater assembly can be moved to the sealed position, and when the first housing portion and the second housing portion are moved to the open position, the heater assembly can be moved to the unsealed position. Advantageously, this provides a convenient way for the heater assembly to move between the sealed and unsealed positions.

[0034] The heater may include one or more electric heating elements. The heater may include multiple electric heating elements. The electric heating elements may include resistive materials. Suitable resistive materials include, but are not limited to: semiconductors such as doped ceramics, electrically "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, 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, gold-containing alloys, iron-containing alloys, and alloys based on nickel, iron, cobalt, stainless steel, and Timetal. TM Kanthal TM Superalloys and other iron-chromium-aluminum alloys, as well as iron-manganese-aluminum based alloys. In composite materials, the resistive material may optionally be embedded in, encapsulated in, or coated with an insulating material, or vice versa, depending on the energy transfer kinetics and desired external physicochemical properties. Alternatively, the electric heater may include one or more infrared heating elements, photon sources, or induction heating elements.

[0035] One or more heating elements can be formed using a metal or metal alloy that has a defined relationship between temperature and resistivity. Heating elements formed in this way can be used to heat and monitor the temperature of the heating element during operation.

[0036] The aerosol generating apparatus may also include a power supply device or power source for powering the heater. The power supply device can be any suitable power supply device, such as a DC voltage source. In one embodiment, the power supply device is a lithium-ion battery. Alternatively, the power supply device can be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, or lithium polymer battery.

[0037] The aerosol generating device is preferably a handheld aerosol generating device that is comfortably held between the fingers of a single hand by the consumer.

[0038] The aerosol generating apparatus may also include a controller or control circuitry configured to control the power supply to the heater assembly. The control circuitry may include a microprocessor. The microprocessor may be a programmable microprocessor, a microcontroller, an application-specific integrated circuit (ASIC), or other electronic circuitry capable of providing control. The control circuitry may include additional electronic components. For example, in some embodiments, the control circuitry may include any of a sensor, a switch, or a display element. Power may be supplied continuously to the heater assembly after the apparatus is started, or it may be supplied intermittently, such as on a per-inlet suction basis. Power may be supplied to the heater assembly in the form of current pulses, for example, by means of pulse width modulation (PWM).

[0039] The second housing portion may include a power supply and a control circuit system. The housing may contain any suitable material or combination of materials. Examples of suitable materials include metals, alloys, plastics, or composites containing one or more of these materials, or thermoplastics suitable for food or pharmaceutical applications, such as polypropylene, polyetheretherketone (PEEK), and polyethylene. Preferably, the material is lightweight and non-brittle.

[0040] The aerosol generating device may include an air inlet. The aerosol generating device may include an aerosol outlet. The air inlet may be in fluid communication with the aerosol outlet to define an airflow path through the aerosol generating device. A recess may be disposed along the airflow path such that the airflow path passes through at least a portion of the recess, and the recess is in fluid communication with both the air inlet and the air outlet. The aerosol generating device may include a mouthpiece. The aerosol outlet may be disposed in the mouthpiece.

[0041] The first housing portion may include an airflow path. The first housing portion may include a first airflow path located between an air inlet and a recess. The first housing portion may include a second airflow path located between the recess and an aerosol outlet. Alternatively, the second housing portion may include an air inlet and at least a portion of the first airflow path. When the first and second housing portions are in a closed position, a portion of the first airflow path in the second housing portion may be sealingly engaged with the airflow path passing through the first housing portion.

[0042] The aerosol generating device may include a suction detector for detecting when a user performs aspiration. The suction detector may include a pressure sensor. The suction detector may be arranged in fluid communication with the airflow path to detect pressure changes when the user performs aspiration.

[0043] According to another embodiment of this disclosure, an aerosol generation system is provided. The aerosol generation system may include an aerosol generation apparatus according to any of the above embodiments. The aerosol generation system may include an aerosol generation article.

[0044] According to another embodiment of this disclosure, an aerosol generation system is provided, comprising an aerosol generation apparatus according to any of the above embodiments, and an aerosol generation article.

[0045] As used herein, the term "aerosol generating article" refers to an article comprising an aerosol forming matrix that, when heated in an aerosol generating apparatus, releases volatile compounds that can form aerosols. The aerosol generating article is separate from and configured for combination with the aerosol generating apparatus used to heat the aerosol generating article.

[0046] The aerosol-generated article can be configured to be received in the recess of the aerosol-generating device.

[0047] The aerosol-generating article may include a container comprising a first wall and a second wall. The first wall and the second wall may together define a matrix compartment. The aerosol-generating matrix may be disposed within the matrix compartment.

[0048] The first wall may contain a different material than the second wall. The first wall may contain a flexible cellulose-based material. The second wall may have higher stiffness than the first wall. Alternatively, the first wall may have higher stiffness than the second wall.

[0049] At least a portion of the first wall may be porous. As used herein with reference to the present invention, the term "cellulose-based material" refers to a material made of cellulose or a derivative of cellulose.

[0050] The first wall can include any cellulosic material. The first wall can also include nonwoven materials.

[0051] As used herein with reference to this invention, the term "nonwoven" refers to a manufactured sheet, web, or wadding of oriented or randomly oriented fibers bonded together by friction, and / or cohesion and / or adhesion, excluding products formed by weaving, braiding, tufting, stitching (with the incorporation of bonding yarns or filaments), or by wet felting (whether or not additionally needle-punched). The fibers may be of natural or synthetic origin.

[0052] The first wall may include molded paper material.

[0053] The second wall may be non-porous. The second wall may comprise a substantially planar material. The second wall may comprise a paper material.

[0054] The aerosol-generating matrix may contain at least one alkaloid.

[0055] As used herein with reference to this invention, the term "alkaloid compound" is used to describe any of a class of naturally occurring organic compounds containing one or more basic nitrogen atoms. Typically, alkaloids contain at least one nitrogen atom in an amine-type structure. This or other nitrogen atom in the alkaloid compound molecule can function as a base in acid-base reactions. In most alkaloid compounds, one or more of the nitrogen atoms are part of a cyclic system, such as a heterocycle. In nature, alkaloid compounds are primarily found in plants, and are particularly common in certain flowering plant families. However, some alkaloid compounds are found in animal species and fungi. In the context of this invention, the term "alkaloid compound" is used to describe alkaloid compounds of natural origin and synthetically manufactured alkaloid compounds. Suitable alkaloid compounds for use in aerosol generating elements according to the invention include, but are not limited to, nicotine and neonicotinoids.

[0056] In a preferred embodiment, the aerosol generating matrix contains nicotine or neonicotinoids.

[0057] In a particularly preferred embodiment, the aerosol generating matrix contains nicotine.

[0058] As used herein, the term "nicotine" is used to describe nicotine, nicotine base, or nicotine salt. In embodiments where the aerosol-generating matrix comprises nicotine base or nicotine salt, the amount of nicotine described herein is either the amount of free base nicotine or the amount of protonated nicotine.

[0059] The aerosol-generating matrix may contain natural or synthetic nicotine.

[0060] The aerosol-generating matrix may contain one or more monoprotic nicotine salts.

[0061] As used herein with reference to this invention, the term "monoproton nicotine salt" is used to describe nicotine salts of monoproton acids.

[0062] The aerosol-generating matrix may contain nicotine.

[0063] The aerosol generating matrix may contain an aerosol forming agent. The aerosol generating matrix may contain any amount of aerosol forming agent. The aerosol generating matrix may contain at least 50% by weight, at least 60% by weight, or at least 70% by weight of the aerosol forming agent. The aerosol generating matrix may contain approximately 80% by weight of the aerosol forming agent.

[0064] The aerosol-generating matrix may contain polyols.

[0065] Polyols act as aerosol forming agents in aerosol-generating matrices. Suitable polyols for use in aerosol-generating matrices include, but are not limited to, propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol. Preferably, in the aerosol-generating matrix according to the invention, the polyol is selected from glycerol, propylene glycol, and combinations thereof. In a particularly preferred embodiment, the polyol is glycerol.

[0066] The aerosol generating matrix may include particles. The particles may have any diameter. The aerosol generating matrix may include particles with diameters greater than or equal to 100 micrometers, greater than or equal to 250 micrometers, or greater than or equal to 500 micrometers.

[0067] The aerosol generating matrix may include particles with a diameter of 5 mm or less, 4 mm or less, or 3 mm or less.

[0068] Aerosol-generating matrices may include particles with diameters between 500 micrometers and 3 millimeters. Aerosol-generating matrices may also include particles with a diameter of approximately 1.5 millimeters.

[0069] The matrix compartment can hold any mass of aerosol generation matrix. For example, the matrix compartment can hold at least 80 mg of aerosol generation matrix, at least 85 mg of aerosol generation matrix, or at least 90 mg of aerosol generation matrix.

[0070] The matrix compartment can hold no more than 300 mg of aerosol generation matrix, no more than 250 mg of aerosol generation matrix, or no more than 200 mg of aerosol generation matrix.

[0071] The matrix compartment can hold aerosol generation matrix between 80 mg and 300 mg, between 85 mg and 250 mg, and between 100 mg and 200 mg.

[0072] The features described in one of the above examples can also be applied to other examples of this disclosure.

[0073] The invention is defined in the claims. However, a non-exhaustive list of non-limiting examples is provided below. Any one or more features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

[0074] Example Ex1: An aerosol generating apparatus for use with an aerosol generating article, the aerosol generating apparatus comprising: a housing having a recess configured to receive at least a portion of the aerosol generating article; and a heater assembly including a heater configured to heat the aerosol generating article to generate an aerosol.

[0075] Example Ex2: An aerosol generating apparatus according to Example Ex1, wherein the heater assembly further includes a sealing member configured to seal at least a portion of the aerosol-generated article within the recess during aerosolization.

[0076] Example Ex3: An aerosol generating apparatus according to Example Ex2, wherein the heater is mounted on the sealing member.

[0077] Example Ex4: An aerosol generating apparatus according to Example Ex3, wherein the heater is mounted on the surface of the sealing member facing the recess.

[0078] Example Ex5: An aerosol generating apparatus according to Example Ex3 or Ex4, wherein the heater is elastically mounted on the sealing member such that the heater is elastically pushed toward the recess.

[0079] Example Ex6: An aerosol generating apparatus according to Example Ex5, wherein the heater is elastically mounted on the sealing member by means of one or more biasing elements.

[0080] Example Ex7: An aerosol generating apparatus according to any one of Examples Ex2 to Ex6, wherein the sealing member is elastically mounted on the housing such that the heater is elastically pushed toward the recess.

[0081] Example Ex8: An aerosol generating apparatus according to Example Ex7, wherein the sealing member is elastically mounted on the housing by means of one or more biasing elements.

[0082] Example Ex9: An aerosol generating apparatus according to any one of Examples Ex6 to Ex8, wherein the biasing element includes a spring.

[0083] Example Ex10: An aerosol generating apparatus according to any one of Examples Ex2 to Ex9, wherein the sealing member is configured to deform at least a portion of the aerosol generating article to seal the aerosol generating article within the recess.

[0084] Example Ex11: An aerosol generating apparatus according to any of the foregoing examples, wherein the heater protrudes from the sealing member toward the recess to allow the heater to directly contact the aerosol generating article.

[0085] Example Ex12: An aerosol generating apparatus according to any of the foregoing examples, wherein the heater is integrated with the sealing member.

[0086] Example Ex13: An aerosol generating apparatus according to any one of Examples Ex2 to Ex11, wherein the heater is fixedly attached to the sealing member.

[0087] Example Ex14: An aerosol generating apparatus according to Example Ex13, wherein the heater is adhered to the sealing member.

[0088] Example Ex15: An aerosol generating apparatus according to Example Ex13, wherein the heater pin is connected to the sealing member.

[0089] Example Ex16: An aerosol generating apparatus according to Example Ex13, wherein the heater is encapsulated in the sealing member.

[0090] Example Ex17: An aerosol generating apparatus according to Example Ex13, wherein the heater is clamped into the sealing member.

[0091] Example Ex18: An aerosol generating apparatus according to any of the foregoing examples, wherein the heater is substantially planar.

[0092] Example Ex19: An aerosol generating apparatus according to any of the foregoing examples, wherein the sealing member includes a sealing frame having a peripheral structure around the orifice, the sealing frame being configured to seal the periphery of the recess.

[0093] Example Ex20: An aerosol generating apparatus according to Example Ex19, wherein the heater extends across the orifice.

[0094] Example Ex21: An aerosol generating apparatus according to Example Ex20, wherein the heater assembly further includes a clamping member that is elastically pushed toward the sealing frame.

[0095] Example Ex22: An aerosol generating apparatus according to Example Ex21, wherein the clamping member is shaped such that at least a portion of the clamping member can enter the orifice to push the heater toward the recess.

[0096] Example Ex23: An aerosol generating apparatus according to Example Ex21 or Ex22, wherein the clamping member further includes at least one elastic element disposed on the surface of the clamping member facing the heater, the at least one elastic element being configured to contact the heater to apply additional compressive force to the heater and the aerosol generating article.

[0097] Example Ex24: An aerosol generating apparatus according to Example Ex23, wherein the at least one elastic element comprises a plurality of elastic strips.

[0098] Example Ex25: An aerosol generating apparatus according to Example Ex23 or Ex24, wherein the at least one elastic element extends transversely to the longitudinal dimension of the heater.

[0099] Example Ex26: An aerosol generating apparatus according to any one of Examples Ex23 to Ex25, wherein the at least one elastic element is formed of silicone.

[0100] Example Ex27: An aerosol generating apparatus according to any of the foregoing examples, wherein the heater assembly is movable between a sealed position and an unsealed position, wherein in the sealed position the sealing member seals the recess, and in the unsealed position the sealing member is spaced apart from the recess to allow the aerosol generating article to be inserted into or removed from the recess.

[0101] Example Ex28: An aerosol generating apparatus according to any of the foregoing examples, wherein the housing includes a first housing portion and a second housing portion, the first housing portion including the recess, and the second housing portion including the heater assembly.

[0102] Example Ex29: An aerosol generating apparatus according to Example Ex28, wherein the first housing portion is movable relative to the second housing portion between an open position in which the recess is exposed and a closed position in which the recess is enclosed by the second housing portion.

[0103] Example Ex30: An aerosol generating apparatus according to Example Ex29, wherein when the first housing portion and the second housing portion are moved to the closed position, the heater assembly is moved to the sealed position, and when the first housing portion and the second housing portion are moved to the open position, the heater assembly is moved to the unsealed position.

[0104] Example Ex31: An aerosol generating apparatus according to any of the foregoing examples, wherein the aerosol generating apparatus includes an air inlet and an aerosol outlet, the air inlet being in fluid communication with the aerosol outlet to define an airflow path through the aerosol generating apparatus.

[0105] Example Ex32: An aerosol generating apparatus according to Example Ex31, wherein the recess is arranged at a position along the airflow path such that the airflow path passes through at least a portion of the recess, and the recess is in fluid communication with both the air inlet and the air outlet.

[0106] Example Ex33: The aerosol generating apparatus according to Example Ex31 or Ex32 further includes a mouthpiece, wherein the aerosol outlet is arranged in the aerosol outlet.

[0107] Example Ex34: An aerosol generating apparatus according to any one of Examples Ex31 to Ex33, wherein the first housing portion includes the airflow path.

[0108] Example Ex35: An aerosol generating apparatus according to Example Ex34, wherein the first housing portion includes a first airflow path located between the air inlet and the recess.

[0109] Example Ex36: An aerosol generating apparatus according to Example Ex35, wherein the first housing portion includes a second airflow path located between the recess and the aerosol outlet.

[0110] Example Ex37: An aerosol generating apparatus according to Example Ex31 or Ex32, wherein the second housing portion includes at least a portion of the air inlet and the first airflow path.

[0111] Example Ex38: An aerosol generating apparatus according to Example Ex37, wherein when the first housing portion and the second housing portion are in the closed position, the portion of the first airflow path in the second housing portion is sealed to the airflow path passing through the first housing portion.

[0112] Example Ex39: An aerosol generating apparatus according to any one of Examples Ex31 to Ex39 further includes a suction detector for detecting when a user performs suction.

[0113] Example Ex40: An aerosol generating apparatus according to Example Ex39, wherein the suction detector includes a pressure sensor arranged in fluid communication with the airflow path to detect pressure changes when a user performs suction.

[0114] Example Ex41: An aerosol generation system, comprising an aerosol generation apparatus according to any of the foregoing examples; and an aerosol generation article.

[0115] Example Ex42: An aerosol generation system according to Example Ex41, wherein the aerosol generation article includes a container, the container including a first wall and a second wall, the first wall comprising a material different from the second wall, the first wall and the second wall together defining a matrix compartment, and an aerosol generation matrix disposed in the matrix compartment, wherein the first wall comprises a flexible cellulose material, and wherein the second wall has higher stiffness than the first wall. Attached Figure Description

[0116] The examples will now be described further with reference to the accompanying drawings, in which: Figure 1 This is a side cross-sectional view of an aerosol generating article used with an aerosol generating apparatus according to the present disclosure.

[0117] Figure 2A This is a schematic cross-sectional view of an aerosol generating apparatus according to an example of the present disclosure, in the open position and about to receive an aerosol-generated article. Figure 2B The closed position is shown. Figure 2A A schematic cross-sectional view of the aerosol generating device and the aerosol-generated product. Figures 3A to 3C This is a perspective view of an example heater assembly for an aerosol generation apparatus according to the present disclosure, showing the heater assembly in a step-by-step assembly stage; Figure 4 It shows Figure 2B A partial longitudinal cross-sectional view of the aerosol generating device 100 in the region of the heater assembly, and the heater assembly is shown in more detail; Figure 5A This is a partial longitudinal cross-sectional view of a heater assembly, another example of an aerosol generating apparatus according to the present disclosure; Figure 5B yes Figure 5A A perspective view of the heater assembly, showing the features of the heater and the elastic strip, with other features removed for clarity; Figures 6A to 6D This is a schematic cross-sectional view of the different mechanisms for engaging the heater assembly with the aerosol generating article for the aerosol generating apparatus, according to the present disclosure. Figure 7A and 7B This is a schematic cross-sectional view of a heater assembly for another example of an aerosol generating apparatus according to the present disclosure, showing the heater assembly in an unsealed position and a sealed position, respectively. Figure 8A and 8B This is a schematic cross-sectional view of a heater assembly for another example of an aerosol generating apparatus according to the present disclosure, showing the heater assembly in an unsealed position and a sealed position, respectively. Figures 9A to 9F This is a schematic cross-sectional view of an example heater assembly for an aerosol generation apparatus according to the present disclosure, showing different ways in which the heater can be coupled to a sealing frame. Detailed Implementation

[0118] The terms “distal,” “proximal,” “upstream,” and “downstream” are used herein to describe the relative positions of components or parts thereof in an aerosol generating apparatus or system. An aerosol generating apparatus or system according to this disclosure has a proximal end and a relatively distal end through which, in use, aerosol exits the article or apparatus for delivery to a user. The proximal end of the aerosol generating apparatus or system may also be referred to as the orifice. In use, the user inhales at the proximal end of the aerosol generating apparatus or system to inhale the aerosol generated by the aerosol generating apparatus or system. The terms “upstream” and “downstream” are relative to the direction of movement of the airflow or aerosol through the aerosol generating apparatus or system when the user inhales at the proximal end. The proximal end of the aerosol generating apparatus or system is located downstream of the distal end of the aerosol generating apparatus or system.

[0119] refer to Figure 1 This illustration shows an aerosol generating article 1 for use with the aerosol generating apparatus of this disclosure. The aerosol generating article 1 includes a container 10. The container 10 includes a first wall 6 and a second wall 2, which together define a matrix compartment 4. An aerosol forming matrix 8 is disposed in the matrix compartment 4.

[0120] exist Figure 1 In the example shown, the first wall 6 is formed of a nonwoven cotton material. The first wall 6 contains between 80% and 90% by weight of cellulose, between 7% and 16% by weight of hemicellulose, and between 1% and 3% by weight of lignin. The first wall 6 is porous.

[0121] The second wall 2 comprises paper with a basis weight of approximately 35 gsm. The second wall 2 is non-porous.

[0122] The second wall 2 is essentially planar. The second wall 2 has higher rigidity than the first wall 6. In this way, the first wall 6 can generally take the form of a bag enclosed by the second wall 2. The area of ​​the second wall 2 is larger than the cross-sectional area of ​​the bag formed by the first wall 6 in the same plane, such that the edge of the second wall 2 extends beyond the edge of the bag to form an edge 2a. The first wall 6 is adhered to the edge 2a of the second wall 2 using a suitable adhesive.

[0123] The aerosol forming matrix 8 is disposed in the matrix compartment 4. The aerosol forming matrix 8 includes homogenized tobacco material particles and an aerosol forming agent. The aerosol forming agent includes glycerol. The matrix compartment 4 contains approximately 150 mg of aerosol forming matrix 714.

[0124] Figure 2AA schematic cross-sectional view of an aerosol generating apparatus 100 according to an embodiment of the present disclosure is shown. The apparatus 100 includes a housing 102 having a first housing portion 102a and a second housing portion 102b. A sliding mechanism 104 connects the first housing portion 102a to the second housing portion 102b and is configured to allow the first housing portion 102a to slide relative to the second housing portion 102b between a closed position and an open position parallel to the longitudinal axis of the aerosol generating apparatus. Figure 2A In this example, the aerosol generating device 100 is shown in the open position. The sliding mechanism 104 is provided by a slide rail 106 arranged on the first housing portion 102a and a corresponding sliding groove (not shown) provided on the second housing portion 102b.

[0125] The aerosol generating device 100 is intended for use with, for example, aerosol generating devices such as Figure 1 The aerosol generating article 1 is used together with the aerosol generating article 1. The first housing portion 102a includes a recess 108 for receiving the aerosol generating article 1. In the open position of the aerosol generating device, the recess 108 is exposed to allow the aerosol generating article 1 to be placed into the recess 108. Figure 2A In the diagram, the aerosol generating article 1 is shown positioned above the recess 108, about to be placed into the recess 108. The aerosol generating article 1 is placed into the recess 108 such that the matrix compartment 4 is received within the recess 108, and the edge 2a of the second wall 2 of the aerosol generating article 1 engages with or rests on the upper periphery of the recess 108.

[0126] The first housing portion 102a includes a device air inlet 110. A first airflow path 112 connects the device air inlet 110 to a recessed air inlet 113 disposed on a first side of the recess 108. The first airflow path 112 allows air to flow from the device air inlet 110 to the recessed air inlet 113 and into the recess 108. A second airflow path 114 is disposed between a recessed aerosol outlet 115 disposed on a second side of the recess 108 and a device aerosol outlet 116 disposed at the downstream end or near end of the aerosol generating apparatus 100. The second airflow path 114 allows aerosol to exit the recess 108 via the recessed aerosol outlet 115 and flow to the device aerosol outlet 116.

[0127] The mouthpiece 118 is located at the downstream or proximal end of the first housing portion 102a, the downstream or proximal end corresponding to the downstream or proximal end of the aerosol generating device 100. Figure 2A In this example, the mouthpiece 1118 is integral with the first housing portion 102a. However, it should be understood that the mouthpiece 118 may alternatively be removably attached to the first housing portion 102b.

[0128] The second housing portion 102b includes a heater assembly 120 configured to heat the aerosol-generating article 1 when it is received in the recess 108. The heater assembly 120 includes a heater 121 for heating the aerosol-generating article 1. The heater 121 may include one or more heating elements (not shown). In the open position of the aerosol-generating device, such as... Figure 2A As shown, heater assembly 120 is spaced apart from recess 108, thus disengaging it from recess 108. In this position, heater assembly 120 is in an unsealed position, and recess 108 is open. Heater assembly 120 cannot be activated in this position.

[0129] The second housing portion 102b also includes a power supply 122 and a controller 124 electrically connected to the heater assembly 120. The power supply 122 is configured to supply power to the heater assembly 120, while the controller 124 is configured to control the power supply. The second housing portion 102b also includes a pressure sensor 126 for detecting airflow through the first airflow path 112. The pressure sensor 126 is also electrically connected to the controller 124, and the controller 124 is configured to activate the heater assembly 120 in response to a signal received from the pressure sensor 126. It should be understood that the heater assembly can be activated by means other than a pressure sensor, such as an alternative sensor or a simple button activated by the user.

[0130] Figure 2B The closed position is shown. Figure 2A A schematic cross-sectional view of the aerosol generating apparatus 100, in which the aerosol generating apparatus has received the aerosol generating article 1 in the recess 108. The combination of the aerosol generating apparatus 100 and the aerosol generating article 1 can be collectively referred to as an aerosol generating system.

[0131] In the closed position of the aerosol generating apparatus 100, the second housing portion 102b covers the recess 108 and helps to retain the aerosol generating article 1 within the aerosol generating apparatus 100. In this position, the heater assembly 120 is in a sealed position, wherein the heater assembly 120 seals the recess 108 by engaging with the periphery of the recess 108. The heater 121 is substantially planar and is positioned or mounted on the surface of the heater assembly facing the recess 108 and the aerosol generating article 1. In the closed position of the aerosol generating apparatus 100, the heater 121 engages or contacts the planar second wall 2 of the aerosol generating article 1. In this position, the aerosol generating apparatus 100 is configured to heat the aerosol generating article 70.

[0132] In the closed position of the aerosol generating device 100, the pressure sensor 126 is arranged adjacent to the first airflow path 112 so as to detect the airflow passing through the first airflow path 112. Specifically, the pressure sensor 126 is configured to detect a pressure drop in the first airflow path 112 caused by a user inhaling or drawing air through the mouthpiece 118. It should be understood that the pressure sensor 126 may alternatively be located in the first housing portion 102a. It should also be understood that the device air inlet 110 and the first airflow path 112 may be arranged adjacent to the pressure sensor 126 in the second housing portion 102b. In this arrangement, when the aerosol generating device is in the closed position, the first airflow path 112 will be in fluid communication with the airflow path passing through the first housing portion 102a.

[0133] Before and between using the aerosol generating device 100, the user can keep the aerosol generating device 100 in the closed position. To use the aerosol generating device 100, the user moves the first housing portion 102a relative to the second housing portion 102b from the closed position to... Figure 2A The diagram shows the open position. In the closed position, the recess 108 is closed by the second housing portion 102b. In the open position, the recess 108 is open for insertion of the aerosol generating article 1. The user can then insert the aerosol generating article 1 into the recess 108. The user then moves the first housing portion 102a relative to the second housing portion 102b from the open position to... Figure 2B The closed position is shown in the diagram, in which the recess 108 is closed by the second housing portion 102b. The aerosol generating device 100 is then ready for use.

[0134] In use, the user places the mouthpiece 118 of the aerosol generating device 100 between their lips and inhales or draws air in. Air is drawn into the air inlet 110 of the device and passes through a first airflow path 112, which is detected by a pressure sensor 126. In response to a signal from the controller 124, power from the power supply device 122 is supplied to the heater 121 of the heater assembly 120, causing current to flow through the heater 121 and heat it. The heat is transferred to the aerosol generating article 1 and the aerosol generating matrix contained therein, causing volatile compounds to vaporize and be released from the aerosol generating matrix.

[0135] As the user continues to inhale or puff on the mouthpiece 118, air is drawn into the recess 108 from the first airflow path 112. The air passes through the porous first wall of the aerosol generating article 1 and through the aerosol generating matrix. As the air passes through the aerosol generating matrix, volatile compounds generated by heating the aerosol generating matrix are entrained in the airflow. The airflow exits the recess 108 via the recess aerosol outlet 115 and enters the second airflow path 114 toward the device aerosol outlet 116. As the air flows from the recess 108 toward the device aerosol outlet 116, the volatile compounds cool to form an aerosol, which is then delivered to the user's mouth.

[0136] Figures 3A to 3C It shows the use of Figure 2A and 2B An example of an aerosol generating apparatus 100, showing a heater assembly 120 during a step-by-step assembly phase. The heater assembly 120 includes a heater 121, a sealing member 130, and a clamping member 134.

[0137] Figure 3A The heater 121 of the heater assembly 120 is shown. The heater 121 includes a plurality of heating elements 121a made of a resistive material that is also elastic, such that the plurality of heating elements 121a can deform and return to their original shape.

[0138] Figure 3B A heater 121 assembled to a sealing member 130 is shown. Figure 3B In this example, the sealing member 130 includes a sealing frame 130 having a peripheral structure surrounding an orifice 132. The sealing frame 130 is configured to seal the periphery of a recess 108 of the aerosol generating device 100 and is sized to be larger than the opening of the recess 108. The orifice 132 has a substantially the same size and shape as the opening of the recess 108 and is positioned in the sealing frame 130 to align with the opening of the recess 108. A heater 121 rests on the sealing frame 130, and a plurality of heating elements 121a extend across the orifice 132. The plurality of heating elements 121a are shaped to conform to the longitudinal profile of the sealing frame 130 and extend downward into and across the orifice 132. The sealing frame 130 provides mechanical support for the heater 121. The sealing frame 130 is made of an electrically insulating and heat-resistant material such as polyetheretherketone (PEEK).

[0139] Figure 3CA clamping member 134 is shown assembled onto the heater assembly 120 on top of the sealing frame 130. The clamping member 134 is configured to seal around the upper periphery of an orifice 132 formed in the sealing frame 130, and is sized to be larger than the orifice 132. A spring 136 is arranged in a blind hole formed in the upper surface of the clamping member 134. The other end of the spring 136 is configured to engage. Figure 2A and 2B The second housing portion 102b of the aerosol generating apparatus 100. A spring 136 is configured to elastically push the heater assembly 120 against a recess 108 in the first housing portion 102a when the aerosol generating apparatus 100 is in the closed position. The spring 136 applies pressure to a clamping member 134, which in turn applies pressure to a sealing frame 130 and a heater 120, to seal the periphery of the recess 108 around the sealing frame 130 and ensure effective thermal contact between the heater 120 and the aerosol generating article 1.

[0140] Figure 4 Showing more details Figure 2B A partial longitudinal cross-sectional view of the aerosol generating device 100 in the region of the heater assembly 120. (See figure) Figure 2B As shown, the aerosol generating device 100 is in a closed configuration, wherein the second housing portion 102b closes the recess 108 arranged in the first housing portion 102a. The heater assembly 120 has a similar configuration to... Figure 3C The heater assembly 120 shown has the same construction and includes a heater 121, a frame member 130, and a clamping member 134.

[0141] A spring 136, arranged between the clamping member 134 and the second housing portion 102b, elastically pushes the clamping member 134 toward the heater 121 and the sealing frame 130, and elastically pushes the heater assembly 120 toward the recess 108. An outer region 134a of the clamping member 134 is arranged to engage an inner region 130a of the frame member 130 surrounding an orifice 132. This forms a seal around the orifice 132 and also pushes the frame member 130 into engagement with the first housing portion 102a to seal the periphery of the recess 108. The clamping member 134 has a protrusion 134b extending toward the recess 108 and adapted to enter the orifice 132 to push the heater 121 toward the recess 108, ensuring good thermal contact between the heater 121 and the aerosol-generating article (not shown).

[0142] The clamping member 134 may be provided with a through hole 138 and a cavity 140 for holding a temperature sensor (not shown). The temperature sensor can be used to monitor the temperature of the heater 121 to ensure effective heating of the aerosol-generating article. Movement of the heater assembly 120 may be guided by a pin (not shown) arranged in an opening 142 formed in the second housing portion 102b. Alternatively, the aerosol generating device 100 may be provided with a mechanism such as a cam mechanism (not shown) that, when the second housing portion 102b is moved to the open position, lifts the heater assembly 120 away from the recess 108 against the action of a spring 136.

[0143] Figure 5A It is used for, for example Figure 2A and 2B A partial longitudinal cross-sectional view of heater assembly 220, another example of the aerosol generating apparatus shown. Except for the two elastic strips 222 at the bottom of the clamping member 234, the heater assembly 220 is constructed similarly to... Figure 4 The heater assembly 120 shown has the same construction. An elastic strip 222 is arranged between the bottom of the clamping member 234 and the heater 221. The elastic strip 222 is configured to apply additional compressive force to the heater 221 and the aerosol-generating article (not shown) when the aerosol-generating article is located in the recess (not shown). The elastic strip 222 is formed of a heat-resistant elastomer such as silicone.

[0144] Figure 5B yes Figure 5A A perspective view of heater assembly 220, showing the features of heater 221 and elastic strip 222, with other features omitted for clarity. The elastic strip 222 extends laterally across multiple heating elements 221a of heater 221 to push all heating elements 221a into contact with the aerosol-generating article (not shown) below.

[0145] Figures 6A to 6D This is a schematic cross-sectional view of the different mechanisms used to engage the heater assembly with the aerosol-generating article in the aerosol-generating apparatus. Figures 6A to 6D In each of these figures, the left figure shows a heater assembly in a disengaged or unsealed position, where the sealing member is disengaged from or spaced apart from the recess; and the right figure shows a heater assembly moved a distance Δx to an engaged or sealed position, where the sealing member seals the recess. Figures 6A to 6D In each of them, the same reference numerals have been used to refer to the same parts.

[0146] The movement across a distance Δx can be provided by a mechanism (not shown) that moves the heater assembly between a sealed position and an unsealed position, for example, when Figure 2A and Figure 2BWhen the first and second housing parts of the aerosol generating device move between a closed position and an open position, respectively. Although the heater assembly is Figures 6A to 6D Each of the components in the left figure is shown directly above the recess, but it should be understood that in practice, the heater assembly may be laterally spaced from the recess, for example, when the aerosol generating device is in the open position, to allow insertion of the aerosol generating article.

[0147] Figures 6A to 6D Aerosol-generated products in the process have the same characteristics as Figure 1 It has the same structure as the aerosol-generated product 1. Figures 6A to 6D The sealing component in the middle can have the same as Figure 3B The sealing member has the same construction, namely, a sealing frame 130 with an orifice 132. Alternatively, Figures 6A to 6D The sealing components in the process can have a solid structure, such as a sealing plate.

[0148] refer to Figure 6A This shows a heater assembly 300a including a heater 302 and a sealing member 304. The sealing member 304 is elastically mounted on a portion of the device housing (not shown) by means of a first spring 306, for example... Figure 2A and Figure 2B The second housing portion 102b is fitted with a first spring 306, which is configured to elastically push the sealing member 304 against the aerosol generating article 1 located in the recess 308 formed in the second housing portion 310. The heater 302 is substantially planar. The heater 302 is elastically mounted on the sealing member 304 by means of a second spring 312, particularly on the lower surface of the sealing member facing the recess 308. The second spring 312 is configured to elastically push the heater 302 against the aerosol generating article 1 located in the recess 308. Figure 6A In the left figure, the first spring 306 and the second spring 312 are shown in their uncompressed state.

[0149] exist Figure 6A In the right figure, heater assembly 300a has moved through a distance Δx, and the first spring 306 and the second spring 312 are shown in their compressed state, where they apply forces to the sealing member 304 and the heater 302, respectively. The force applied by each of the first spring 306 and the second spring 312 is proportional to the distance each spring is compressed. The first spring 306 pushes the sealing member 304 downward, such that the downwardly projecting edge of the sealing member 304 seals the periphery of the recess 308. When sealing the recess 308, the edge 2a of the planar second wall of the aerosol generating article 1 is clamped between the downwardly projecting edge of the sealing member and the periphery of the recess 308. The second spring 312 pushes the heater 302 downward to ensure good contact between the heater 302 and the aerosol generating article 1.

[0150] Figure 6B Another heater assembly 300b is shown, which has the same Figure 6A The heater assembly 300a has a similar construction, except that the sealing member 304 is elastically mounted by means of a spring 306. However, the heater 302 is not spring-loaded, but instead is rigidly mounted or fixed to the sealing member 304. The heater 302 is mounted such that it protrudes below the sealing member 304, i.e., it protrudes in the direction toward the recess to allow the heater 302 to contact the aerosol-generating article 1. Figure 6B In the left figure, the first spring 306 is shown in its uncompressed state.

[0151] exist Figure 6B In the right figure, where heater assembly 300b has moved through a distance Δx, spring 306 is shown in its compressed state, applying force to sealing member 304 and heater 302. When sealing recess 308, the edge 2a of the planar second wall of aerosol generating article 1 is clamped between the downwardly projecting edge of the sealing member and the periphery of recess 308. Aerosol generating article 1 is configured to be compressible and deformable to ensure good contact between heater 302 and aerosol generating article 1.

[0152] Figure 6C Another heater assembly 300c is shown, which has the same Figure 6A The heater assembly 300a has a similar construction, except that the heater 302 is elastically mounted on the sealing member 304 by means of a spring 312. However, the sealing member 304 is not spring-loaded, but rigidly mounted or fixed to a mechanism (not shown) for moving the heater assembly from the unsealed position to the sealed position. The spring 312 is configured to elastically push the heater 302 toward the aerosol generating article 1 located in the recess 308. Figure 6A In the left figure, spring 312 is shown in its uncompressed state.

[0153] exist Figure 6C In the right figure, where heater assembly 300c has moved through a distance Δx, spring 312 is shown in its compressed state, where the spring applies force on heater 302 to push the heater into contact with aerosol generating article 1. When sealing recess 308, the edge 2a of the planar second wall of aerosol generating article 1 is held between the downwardly projecting edge of the sealing member and the periphery of recess 308. An effective seal is provided by the edge 2a of the planar second wall of aerosol generating article 1, which is configured to deform and deform when sealing member 304 engages to seal between the edge of the recess and the edge of sealing member 304.

[0154] Figure 6DAnother heater assembly 300d is shown. In heater assembly 300d, neither the sealing member 304 nor the heater 302 is spring-loaded. Instead, the sealing member 304 is rigidly mounted or secured to a mechanism (not shown) for moving the heater assembly from an unsealed position to a sealed position. The heater 302 is rigidly mounted or secured to the sealing member 304 such that it protrudes below the sealing member 304, i.e., it protrudes in the direction toward the recess 308 to allow the heater 302 to contact the aerosol-generating article 1.

[0155] exist Figure 6D In the right figure, the heater assembly 300d has moved toward the recess 308 by a distance Δx. When sealing the recess 308, the edge 2a of the planar second wall of the aerosol generating article 1 is held between the downwardly projecting edge of the sealing member and the periphery of the recess 308. An effective seal is provided by the edge 2a of the planar second wall of the aerosol generating article 1, which is configured to deform and deform when the sealing member 304 engages to seal between the edge of the recess and the edge of the sealing member 304. The aerosol generating article 1 is configured to be compressible, and the deformation ensures good contact between the heater 302 and the aerosol generating article 1.

[0156] Figure 7A and 7B This is a schematic cross-sectional view of a heater assembly 400, another example of an aerosol generating apparatus, showing the heater assembly 400 in both its unsealed and sealed positions. (Reference) Figure 7A The heater assembly 400 includes a heater 402 and a sealing member 404. Figure 7A In the unsealed position, the sealing member 404 is disengaged from or spaced apart from the recess 408 arranged in the housing 410 of the aerosol generating device. The aerosol generating article 1 is located in the recess 408. Figure 7A and 7B Aerosol-generated products in the process have the same characteristics as Figure 1 It has the same structure as the aerosol-generated product 1.

[0157] The sealing member 404 has an edge 404a extending downward toward a downward recess 408. A heater 402 is integrated within the sealing member 404 such that the lower surface of the heater 402 is positioned above the downward-facing edge of the edge 404a. The heater 402 extends across the gap between opposite sides of the edge 404a. Each end of the heater 402 is embedded in its respective side of the edge 404a.

[0158] Figure 7BA heater assembly 400 in a sealed position is shown, wherein a sealing member 404 seals a recess 408. When the recess 408 is sealed, the edge 2a of the planar second wall 2 of the aerosol generating article 1 is held between the downwardly projecting edge 404a of the sealing member 404 and the periphery of the recess 408. The edge 2a of the planar second wall 2 of the aerosol generating article 1 can be sufficiently extended under pressure to deform downward, such that the remainder of the second wall 2 of the matrix chamber 4 overlying the aerosol generating article 1 extends into the gap between the opposite sides of the edge 404a to contact the heater 402. Therefore, this arrangement allows the heater 402 to be integrated within the sealing member 404.

[0159] Figure 8A and 8B This is a schematic cross-sectional view of a heater assembly 500, another example of an aerosol generating apparatus, showing the heater assembly 500 in both its unsealed and sealed positions. (Reference) Figure 8A The heater assembly 500 includes a heater 502 and a sealing member 504. Figure 8A In the unsealed position, the sealing member 504 is detached from or spaced apart from the recess 508 arranged in the housing 510 of the aerosol generating device. The aerosol generating article 1 is located in the recess 508. Figure 8A and 8B Aerosol-generated products in the process have the same characteristics as Figure 1 It has the same structure as the aerosol-generated product 1.

[0160] The sealing member 504 has an edge 504a extending downward toward a lower recess 508. The heater 502 is mounted within the edge 504a on a pair of supports 504b extending from the lower surface of the sealing member 504. The supports 504b are of such length that the lower surface of the heater protrudes just below the downward-facing edge of the edge 504a.

[0161] Figure 8B A heater assembly 500 in a sealed position is shown, wherein a sealing member 504 seals a recess 508. When the recess 508 is sealed, the edge 2a of the planar second wall 2 of the aerosol-generating article 1 is clamped between the downwardly projecting edge 504a of the sealing member 504 and the periphery of the recess 408. The remainder of the second wall 2 of the matrix chamber 4 overlying the aerosol-generating article 1 is sufficiently extensible to deform downward under pressure applied by the downwardly projecting heater 502. This provides effective thermal contact between the heater 502 and the matrix chamber.

[0162] Figures 9A to 9F This is a schematic cross-sectional view of an example heater assembly for an aerosol generation device, showing different ways in which the heater can be attached to a sealing frame.

[0163] Figure 9AA heater assembly 600a is shown, in which the sealing member and the heater are formed as an integral part. Therefore, the heater and the sealing member are integrated. The heater assembly 600a is formed of a material that possesses both the electrical conductivity and mechanical strength required to perform both the functions of the heater and the sealing member, respectively.

[0164] Figure 9B A heater assembly 600b is shown, in which a heater 602 is adhered to a sealing member 604. The heater 602 is mounted on a series of supports 604b protruding from the lower surface of the sealing member 604. An adhesive 603 is applied at the interface between the supports 604b and the heater 602. Any suitable heat-resistant adhesive can be used.

[0165] Figure 9C A heater assembly 600c is shown, in which a heater 602 is pinned to a sealing member 604. The heater 602 is mounted on a series of supports 604b projecting from the lower surface of the sealing member 604. Pins 605 are used to attach the heater 602 to each of the supports 604b. The heater 602 has an orifice for each of the pins 605.

[0166] Figure 9D A heater assembly 600d is shown, in which a heater 602 is encapsulated within a sealing member 604. The sealing member 604 includes a wall 607 extending downward from its lower surface and surrounding a cavity for receiving the heater 602. An insulating material 609 is deposited into the cavity, and the heater 602 is arranged within the insulating material 609 such that its upper and side surfaces are encapsulated within it. The lower surface of the heater 602 remains exposed for heating. Any suitable insulating material that is both thermally and electrically insulating can be used.

[0167] Figure 9E A heater assembly 600e is shown, in which a heater 602 is held within a sealing member 604. The sealing member 604 includes a wall 607 extending downward from the lower surface of the sealing member and surrounding a cavity for receiving the heater 602. An end of the heater 602 is embedded in the inwardly facing opposite side of the wall 607 such that the lower surface of the heater 602 is positioned just above the downwardly facing edge of the wall 607.

[0168] Figure 9FAnother heater assembly 600f is shown, in which a heater 602 is held within a sealing member 604. The sealing member 604 includes a wall 607 extending downward from its lower surface and surrounding a cavity for receiving the heater 602. A flange or lip 602a is formed at the end of the heater 602, which is embedded in the inwardly facing opposite side of the wall 607. This arrangement allows the lower surface of the heater 602 to be arranged flush with the downwardly facing edge of the wall 607.

[0169] For the purposes of this specification and the appended claims, unless otherwise stated, all figures representing quantities, quantities, percentages, etc., shall be understood to be modified by the term "about" in all cases. Thus, in this context, the figure A is understood to be A ± 10% of A. In this context, the figure A may be considered to include a value within the general standard error for the measurement of the property modified by the figure A. In certain instances used in the appended claims, the figure A may deviate from the percentages listed above, provided that the amount of deviation from A does not materially affect the essential and novel features of the claimed invention. Furthermore, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges therein, which may or may not be specifically listed herein.

Claims

1. An aerosol generating apparatus for use with an aerosol generating article, the aerosol generating apparatus comprising: A housing having a recess configured to receive at least a portion of the aerosol-generated article; Heater assembly, the heater assembly comprising: Heater, the heater being configured to heat the aerosol-generating article to generate an aerosol; and A sealing member configured to seal at least a portion of the aerosol-generated article within the recess during aerosolization; The heater is mounted on the sealing member; The sealing member includes a sealing frame having a peripheral structure around the orifice, the sealing frame being configured to seal the periphery of the recess; The heater extends across the orifice; and The heater assembly further includes a clamping member that is resiliently pushed against the sealing frame, the clamping member being shaped such that at least a portion of the clamping member can enter the orifice to push the heater toward the recess.

2. The aerosol generating apparatus according to claim 1, wherein the heater is mounted on the surface of the sealing member facing the recess.

3. The aerosol generating apparatus according to claim 1 or 2, wherein the heater is elastically mounted on the sealing member such that the heater is elastically pushed toward the recess.

4. The aerosol generating apparatus according to any of the preceding claims, wherein the sealing member is elastically mounted on the housing such that the heater is elastically pushed toward the recess.

5. The aerosol generating apparatus according to any of the preceding claims, wherein the sealing member is configured to deform at least a portion of the aerosol generating article to seal the aerosol generating article within the recess.

6. The aerosol generating apparatus according to any of the preceding claims, wherein the heater protrudes from the sealing member toward the recess to allow the heater to directly contact the aerosol generating article.

7. The aerosol generating apparatus according to any of the preceding claims, wherein the heater is integral with the sealing member.

8. The aerosol generating apparatus according to any one of claims 1 to 6, wherein the heater is fixedly attached to the sealing member.

9. The aerosol generating apparatus according to any of the preceding claims, wherein the heater is substantially planar.

10. The aerosol generating apparatus according to any of the preceding claims, wherein the clamping member includes an elastic element disposed on the surface of the clamping member facing the heater.

11. The aerosol generating apparatus of claim 10, wherein the elastic element extends transversely to the longitudinal dimension of the heater.

12. The aerosol generating apparatus according to claim 10 or 11, wherein the elastic element is formed of a heat-resistant elastomer.

13. The aerosol generating apparatus according to any of the preceding claims, wherein the heater assembly is movable between a sealed position and an unsealed position, wherein in the sealed position the sealing member seals the recess, and in the unsealed position the sealing member is spaced apart from the recess to allow the aerosol generating article to be inserted into or removed from the recess.

14. The aerosol generating apparatus according to any preceding claim, wherein the housing includes a first housing portion and a second housing portion, the first housing portion including the recess, and the second housing portion including the heater assembly, wherein the first housing portion is movable relative to the second housing portion between an open position in which the recess is exposed and a closed position in which the recess is enclosed by the second housing portion.

15. The aerosol generating apparatus of claim 14, wherein when the first housing portion and the second housing portion are moved to the closed position, the heater assembly is moved to the sealed position, and when the first housing portion and the second housing portion are moved to the open position, the heater assembly is moved to the unsealed position.

Images