Aerosol-generating device with curved inner wall

Abstract

An aerosol-generating device (10) for use with an aerosol-generating article (20) is provided. The aerosol-generating device (10) comprises a housing (11) defining a cavity (14) configured to receive an aerosol-generating article (20), the housing being movable between an open position in which the aerosol-generating article is insertable into the housing and a closed position in which the aerosol-generating article is receivable within the housing. The aerosol-generating device comprises a heater assembly (310) configured to heat the aerosol-generating article when the aerosol-generating article (20) is arranged in the cavity (14). The cavity (14) is at least partially defined by a curved concave inner wall (210) of the housing, the curved concave inner wall being configured to receive at least a portion of the aerosol-generating article (20). The cavity (14) for receiving the article is a substantially enclosed space. The curved concave inner wall (210) has a radius of curvature of at least 1 millimetre in a first direction.

Description

Technical Field

[0002] This disclosure relates to an aerosol generating apparatus for use with an aerosol generating article. In particular, this disclosure relates to an aerosol generating apparatus including a housing and a heater assembly configured to heat the aerosol generating article. The housing includes a cavity at least partially defined by a curved, concave inner wall of the housing. This disclosure also relates to an aerosol generating system including an aerosol generating apparatus and an aerosol generating article configured for use with the aerosol generating apparatus. Background Technology

[0003] 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.

[0004] 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-generating article specifically designed for use with the aerosol generation device. In some instances, the aerosol-generating article comprises an aerosol-forming matrix, such as a tobacco stick or tobacco rod, and when the aerosol-generating article is inserted into the aerosol generation device, the heater, housed within the aerosol generation device, is inserted into or positioned around the aerosol-forming matrix.

[0005] 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.

[0006] 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).

[0007] However, this method may not be effective in preserving other forms of aerosol generating matrix, such as granular or powdered aerosol generating matrices. Such aerosol generating articles are 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.

[0008] 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 may 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 an aerosol generating article comprising a container, when used in combination with a suitable aerosol generating apparatus, can be easily handled and manipulated by the consumer. However, prior art aerosol generating apparatus may not be suitable for heating aerosol generating articles comprising containers. For example, inserting a heating element into an aerosol generating article comprising a container may adversely cause leakage of the aerosol generating matrix from the container. Additionally, existing heaters configured to externally heat the aerosol generating article may not provide effective heating sufficient to generate a consistent aerosol from the aerosol generating article comprising a container. Summary of the Invention

[0009] There is a need for an aerosol generating apparatus suitable for use with an aerosol generating article, such as an aerosol generating article including a container.

[0010] An aerosol generating apparatus is required, wherein the aerosol generating matrix of the aerosol generating product is uniformly distributed when disposed in the aerosol generating apparatus.

[0011] There is a need for an aerosol generation device that can provide more consistent aerosol delivery throughout the user experience.

[0012] According to this disclosure, an aerosol generating apparatus is provided. The aerosol generating apparatus can be used with an aerosol generating article. The aerosol generating apparatus may include a housing. The housing may define a cavity. The cavity is configured to receive an aerosol generating article. The housing is movable between an open position and a closed position. The open position is configured such that the aerosol generating article can be inserted into the housing. The closed position is configured such that the aerosol generating article can be inserted into the cavity of the housing. The closed position is configured such that the aerosol generating article can be accommodated within the housing. The closed position is configured such that the aerosol generating article can be accommodated within the cavity of the housing. The aerosol generating apparatus may include a heater assembly. The heater assembly is configured to heat the aerosol generating article. The heater assembly is configured to heat the aerosol generating article when it is disposed in the cavity. The cavity may be at least partially defined by a curved concave inner wall of the housing. The curved concave inner wall of the housing is configured to receive at least a portion of the aerosol generating article. The cavity may be a substantially enclosed space. The curved concave inner wall may have a radius of curvature of at least 1 mm in the first direction.

[0013] According to this disclosure, an aerosol generating apparatus is provided for use with an aerosol generating article. The aerosol generating apparatus includes a housing defining a cavity configured to receive an aerosol generating article. The housing is movable between an open position, in which the aerosol generating article can be inserted into the housing, and in a closed position, the aerosol generating article can be accommodated within the housing. The aerosol generating apparatus includes a heater assembly configured to heat the aerosol generating article when it is disposed in the cavity. The cavity is at least partially defined by a curved concave inner wall of the housing. The curved concave inner wall of the housing is configured to receive at least a portion of the aerosol generating article. The cavity is a substantially enclosed space. The curved concave inner wall has a radius of curvature of at least 1 mm in a first direction.

[0014] With its curved concave inner wall, the cavity of the device can receive aerosol-generating articles and provide improved aerosols. The curved concave inner wall provides a volume for accommodating the aerosol-generating articles. This allows the aerosol-generating matrix of the aerosol-generating articles to be reliably and uniformly distributed within the cavity, resulting in more reliable heating and gas flow through the aerosol-generating articles. Because the curved concave inner wall reduces variations in matrix distribution, the resulting aerosol properties are more consistent across different aerosol-generating devices and systems.

[0015] As used herein, the term "aerosol-generating matrix" refers to a matrix that, when heated, releases volatile compounds that can condense to form aerosols.

[0016] As used herein, the term "aerosol" refers to a dispersion of solid particles or droplets, or a combination of solid particles and droplets, in a gas. Aerosols can be visible or invisible. Aerosols can include vapors of substances that are typically liquid or solid at room temperature, as well as solid particles or droplets, or a combination of solid particles and droplets.

[0017] As used herein, the term "aerosol generating article" refers to an article comprising an aerosol generating matrix capable of releasing volatile compounds that can form aerosols. Aerosol generating articles may be disposable. Aerosol generating articles may be configured for use with aerosol generating apparatus.

[0018] As used herein, the term "aerosol generating apparatus" refers to an apparatus that interacts with an aerosol generating matrix to generate aerosols. In some instances, the aerosol generating apparatus heats the aerosol generating matrix to promote the release of volatile compounds from the matrix.

[0019] As used in this article, the term "aerosol generation system" refers to the combination of an aerosol generation device and an aerosol generation product.

[0020] As used in this article, the term "flexible" is used to describe a material's ability to bend easily without breaking.

[0021] As used in this article, the term "cellulose-based materials" refers to materials made of cellulose or cellulose derivatives.

[0022] As used herein, the terms “upstream” and “downstream” refer to the relative position of a component or part of a component of an aerosol generating apparatus with respect to the direction in which air or aerosol is transported through the aerosol generating apparatus during use.

[0023] As used herein, the term "plane" refers to a feature that is typically formed in a single Euclidean plane and does not surround or otherwise conform to fit a curved or other non-planar shape. A planar surface may extend in two dimensions within a single Euclidean plane. The extension of a planar object in the two dimensions within a single Euclidean plane may be significantly greater than its extension in a third dimension perpendicular to that plane. More specifically, the extension of a planar object in the first dimension and the second dimension perpendicular to the first dimension may be at least two, five, or ten times greater than its extension in the third dimension perpendicular to the first and second dimensions.

[0024] As used herein, the term "longitudinal" refers to the direction aligned with the airflow path through the aerosol-generated article within the aerosol generating apparatus. The longitudinal direction can be aligned with the aerosol outlet of the apparatus. If the aerosol generating apparatus is elongated, having a length greater than its width or depth, the longitudinal direction can be along the length of the aerosol generating apparatus.

[0025] As used in this article, the term "lateral" refers to a direction perpendicular to the longitudinal direction.

[0026] As used in this article, the term "lateral" refers to a direction perpendicular to both the longitudinal and transverse directions.

[0027] As used in this article, the term "removable attachment" refers to an attachment that is reversible without damaging the parts to which they are attached.

[0028] A cavity can be a space within a housing configured to receive an aerosol-generating article. The cavity can be defined in a single component or between two or more components. The cavity can be a substantially enclosed space. The cavity can be a substantially enclosed space except for any orifices configured to allow airflow through it.

[0029] A curved concave inner wall may define a recess. The recess may be part of a cavity. The recess may form at least 50% of the cavity. The recess may form at least 60% of the cavity. The recess may form at least 70% of the cavity. The recess may form at least 80% of the cavity. The recess may form at least 90% of the cavity. The recess may be defined by a single component or formed within a single component.

[0030] The curved concave inner wall can form at least 50% of the cavity. The curved concave inner wall can form at least 60% of the cavity. The curved concave inner wall can form at least 70% of the cavity. The curved concave inner wall can form at least 80% of the cavity. The curved concave inner wall can form at least 90% of the cavity. The curved concave inner wall can be defined by a single component or formed in a single component.

[0031] A curved concave inner wall may have at least a portion with zero Gaussian curvature. A curved concave inner wall may have zero Gaussian curvature. Those skilled in the art will understand that the term "Gaussian curvature" is an intrinsic invariant of a surface under isometric transformation. Gaussian curvature is the product of the two principal curvatures of a surface. A surface with positive Gaussian curvature is a sphere, a surface with negative Gaussian curvature is a hyperboloid (saddle shape), and a surface with zero Gaussian curvature is called a developable surface. A developable surface can be flattened by a pure bending transformation (isometric transformation) without stretching or compression. In the case of isometric transformation (bending only), a 2D plane can be transformed into a curved surface, provided that the Gaussian curvature of the surface does not change during the transformation. As an example, a flat sheet with zero Gaussian curvature still has zero Gaussian curvature after it is rolled into a cylinder. If the Gaussian curvature of a surface changes during its deformation, it must be accompanied by stretching, resulting in a distortion of the distance between material points on the surface. This transformation occurs when a spherical shell is formed from a flat sheet. For non-stretchable sheets, this would be impossible if the sheet did not wrinkle (wrinkling can introduce irreversible creases into the sheet). If the sheet is stretchable, it can stretch instead of wrinkle, but the shell will require at least one singularity, where the material points must be distorted.

[0032] An aerosol generating device is provided by means of a curved, concave inner wall of a cavity with zero Gaussian curvature. This device can receive the aerosol-generated article without stretching it, while simultaneously allowing the aerosol-generated article to fill the aerosol generating cavity. This provides particularly suitable aerosols and an improved user experience.

[0033] A curved concave inner wall can have a portion with zero Gaussian curvature. A curved concave inner wall can be formed entirely from a shape with zero Gaussian curvature.

[0034] The curved concave inner wall can be an unfoldable surface. The curved concave inner wall may have at least a portion that serves as an unfoldable surface.

[0035] The curved concave inner wall may be configured to receive an aerosol-forming article, such that at least a portion of the outer surface of the aerosol-forming article is not stretched when it is pushed into the curved concave inner wall. The curved concave inner wall may be configured to receive an aerosol-forming article, such that a large portion of the outer surface of the aerosol-forming article is not stretched when it is pushed into the curved concave inner wall. The curved concave inner wall may be configured to receive an aerosol-forming article, such that the surface of the aerosol-forming article in contact with the curved concave inner wall is not stretched when it is pushed into the curved concave inner wall. The curved concave inner wall may be configured to receive an aerosol-forming article, such that the surface of the aerosol-forming article in contact with the curved concave inner wall is not stretched when it bends into the curved concave inner wall. The curved concave inner wall may be configured to receive an aerosol-generating article such that the outer surface of the aerosol-generating article is not stretched when it is pushed into the curved concave inner wall. The curved concave inner wall may also be configured to receive a substantially planar aerosol-generating article such that the outer surface of the aerosol-generating article is not stretched when it is pushed into the curved concave inner wall. The curved concave inner wall may be rigid. It may comprise or be composed of a rigid material. The curved concave inner wall may have lower ductility or less flexibility than the aerosol-generating article configured to be received by the curved concave inner wall.

[0036] The curved concave inner wall can have a semi-cylindrical shape. The semi-cylindrical shape can be a substantially circular semi-cylindrical shape. The semi-cylindrical shape can also be a substantially elliptical semi-cylindrical shape.

[0037] The curved concave inner wall may have a semi-cylindrical shape extending in the direction of airflow through the aerosol generating device. The semi-cylindrical shape may extend along the direction of airflow through the cavity. The semi-cylindrical shape may extend towards the downstream end of the aerosol generating device. The aerosol generating device may have a mouthpiece end, and the semi-cylindrical shape may extend towards the mouthpiece end of the aerosol generating device. The semi-cylindrical shape may extend along the longitudinal direction of the aerosol generating device.

[0038] The curved concave inner wall can have a substantially symmetrical shape. The curved concave inner wall can have a substantially symmetrical shape about the longitudinal plane of the aerosol generating device.

[0039] The curved concave inner wall may have a radius of curvature of at least 1 mm, preferably at least 2 mm, and more preferably at least 2.5 mm in the first direction. The curved concave inner wall may have a radius of curvature of up to 10 mm, preferably up to 8 mm, and more preferably up to 6 mm in the first direction. The curved concave inner wall may have a radius of curvature between 2 mm and 6 mm, preferably between 5 mm and 6 mm. The first direction may be the transverse direction of the aerosol generating device.

[0040] The curved concave inner wall may have multiple sections, at least two of which have different radii of curvature from each other.

[0041] The curved concave inner wall may include a first portion, a second portion, and a third portion. The second portion may be located between the first and third portions. The first portion may have substantially the same radius of curvature as the third portion. The first and third portions may be symmetrical about the longitudinal axis of the shell. The first and third portions may be symmetrical about the longitudinal axis of the cap. The first portion may have a radius of curvature of at least 1 mm. The third portion may have a radius of curvature of at least 1 mm. The second portion may have a radius of curvature smaller than that of the first and second portions. The second portion may have a zero radius of curvature.

[0042] The curved concave inner wall can have a zero radius of curvature in a second direction, perpendicular to the first direction. This second direction can be substantially the direction of airflow through the aerosol generating device. Alternatively, it can be substantially the direction of airflow through the cavity. Finally, it can be the longitudinal direction of the aerosol generating device.

[0043] The curved concave inner wall can have a curved cross-sectional shape in the first plane. The first plane can be arranged such that the airflow direction is substantially perpendicular to the first plane. The first plane can extend in the lateral direction of the aerosol generating device. The first plane can extend in the transverse direction of the aerosol generating device.

[0044] The curved concave inner wall may have a constant curved cross-sectional shape from the upstream end to the downstream end of the curved concave inner wall.

[0045] The curved concave inner wall can have a straight cross-sectional shape in the second plane, which is perpendicular to the first plane. The second plane can extend in the longitudinal direction of the aerosol generating device. The second plane can extend in the airflow direction of the aerosol generating device. The second plane can extend in the lateral direction of the aerosol generating device.

[0046] The housing may include a cap. The cap may be a lid. The cap may be removably attached to the aerosol generating device.

[0047] The housing may include a base. The base may be a substantially planar base. The base may be a planar base. The base may include a substantially planar portion. The substantially planar portion may occupy the majority of the volume of the base.

[0048] The cap can be removably attached to the base. The cap or base (or both) can be movable between an open position and a closed position, in which the aerosol-generating article can be inserted into the housing, and in the closed position, the aerosol-generating article can be contained within the housing. In the open position, the cap can be further away from the base than in the closed position. In the open position, the cap can be displaced away from the base. In the open position, the cap can be separated from the base sufficiently to allow for the aerosol-generating article to be inserted between the cap and the base. In the closed position, the cap can be attached to the base. The cap and base can be configured such that a straight airflow path exists through the cap and base.

[0049] The cap and base together can substantially define a cavity. In the closed position, the cap and base can define the cavity. The cap may include a curved, concave inner wall. The cap and base can be configured to engage together to define the cavity as a substantially closed space. The cap and base can be configured to engage together to define the cavity as a substantially closed space, except for one or more air inlet or air outlet orifices.

[0050] The cap may include at least one cap arm configured to extend toward a base when the housing is in a closed position. The cap may include multiple cap arms configured to extend toward a base when the housing is in a closed position. The cap may include at least two cap arms configured to extend toward a base when the housing is in a closed position. A curved concave inner wall may be disposed between the at least two cap arms. The at least two cap arms may extend along the longitudinal direction of the cap. The at least two cap arms may extend along a larger portion of the cap in the longitudinal direction of the cap. The at least two cap arms may extend along a large portion of the length of the cap in the longitudinal direction of the cap. The at least two cap arms may extend entirely along the length of the cap in the longitudinal direction of the cap. The shape, size, or material of the at least two cap arms may be substantially identical to each other. The at least two cap arms may be arranged such that the cap is symmetrical about a plane between the at least two cap arms.

[0051] At least two cap arms may be clamping arms. At least two cap arms may be configured to clamp the aerosol-generating article between the cap and the base when the cap and base are in the closed position. At least two cap arms may be configured to clamp the edge of the aerosol-generating article. At least two cap arms may be configured to extend into the aerosol-generating article. At least two cap arms may be configured to clamp a portion of the aerosol-generating article between the cap and the base, such that the deployable surface of the aerosol-generating article remains between the cap arms to extend into the curved concave inner wall.

[0052] The cap may include cap extensions. The cap extensions may extend from the cap in a lateral direction. The cap may include multiple cap extensions. The cap may include at least two cap extensions. The at least two cap extensions may extend away from each other. The at least two cap extensions may partially define the upper surface of the cap. The at least two cap extensions may partially define the planar upper surface of the cap. The cap may be configured such that when the cap and base are in a closed position, at least two cap extensions are aligned with the base. The cap may be configured such that when the cap and base are in a closed position, at least two cap extensions are in contact with the base. The cap may be configured such that when the cap and base are in a closed position, at least two cap extensions abut the base. The at least two cap extensions may include attachment means for attaching to the base.

[0053] The base can be configured to receive aerosol-generated articles when the housing is in the open position. The base may include a heater assembly.

[0054] The base may include a planar portion. The planar portion may include a heater assembly. The heater assembly may extend across the planar portion of the base. The base may include at least one base arm configured to extend from the planar portion toward the cap when the housing is in the closed position. The base may include a plurality of base arms configured to extend toward the cap when the housing is in the closed position. The base may include at least two base arms configured to extend toward the cap when the housing is in the closed position.

[0055] At least two base arms may extend along the base in the longitudinal direction. At least two base arms may extend along a large portion of the base in the longitudinal direction. At least two base arms may extend along a large portion of the length of the base in the longitudinal direction. At least two base arms may extend entirely along the length of the base in the longitudinal direction. The shape, size, or material of the at least two base arms may be substantially identical to each other. The at least two base arms may be arranged such that the base is symmetrical along a plane between the at least two base arms.

[0056] When the cap and base are in the closed position, the curved concave inner wall can be at least partially arranged between at least two base arms. When the cap and base are in the closed position, the curved concave inner wall can be substantially arranged between at least two base arms. When the cap and base are in the closed position, at least two cap arms can be arranged between at least two base arms. When the cap and base are in the closed position, at least two cap arms can contact at least two base arms.

[0057] At least two base arms may be retaining arms. The at least two base arms may be configured to retain at least a portion of the aerosol-generating article. The at least two base arms may be configured to extend to an extension of the cap when the cap and base are in the closed position. The at least two base arms may include a first base arm and a second base arm. When the cap and base are in the closed position, the first base arm may contact a first extension of the cap. When the cap and base are in the closed position, the first base arm may be securely attached to the first extension. When the cap and base are in the closed position, the second base arm may contact a second extension of the cap. When the cap and base are in the closed position, the second base arm may be securely attached to the second extension.

[0058] The cap is configured to be at least partially received in the base when the cap and base are in the closed position. The cap is configured to be movable in the base until the base arms abut the cap. The cap is configured to be movable in the base until at least two base arms abut the cap extension.

[0059] The size of the cap arm can be set such that, in the closed position, the cap arm does not extend completely into the flat portion. The size of the cap arm can be set such that, in the closed position, the cap arm is spaced apart from the flat portion. The size of the cap arm can be set such that, in the closed position, the aerosol generating matrix can be held between the cap arm and the flat portion.

[0060] Each or every cap arm may include a cap arm extension. The cap arm extension may have a smaller dimension in the lateral direction compared to its corresponding cap arm. The cap arm extension may extend toward the base. The cap arm extension may extend toward a planar portion of the base. The cap arm extension may be sized such that, in the closed position, the cap arm extension extends from the cap arm to the base. The cap arm extension may be sized such that, in the closed position, the cap arm extension extends from the cap arm to a planar portion of the base. The cap arm extension may be aligned with the cap arm from which it extends. When the cap and base are in the closed position, the cap arm extension may be aligned with the base arm. Each or every cap arm extension may be configured to clamp a rigid base of the aerosol-generating article. Each or every cap arm extension may clamp a portion of the aerosol-generating article between the cap and the base, thereby preventing the formation of air gaps and providing an airtight heating cavity to provide improved heat conduction.

[0061] The recess may have a recess height in the lateral direction of the housing. The recess height can be measured from the innermost point of the curved concave inner wall to the point furthest from the innermost point of the curved concave inner wall in the lateral direction. In the case where the end cap includes at least one arm, the recess height can be considered as the lateral distance between the innermost point of the curved concave inner wall and the end of at least one arm that is furthest from the innermost point of the curved concave inner wall in the lateral direction.

[0062] Where the end cap does not include at least one arm, the recess height can range from the base of the recess to the apex. If the curved concave inner wall defines a semi-cylindrical shape, the recess height can be the radius of the curved concave inner wall. The recess height can also be the radial dimension of the curved concave inner wall along a lateral axis, the curved concave inner wall being substantially symmetrical about said lateral axis.

[0063] The recess may have a recess height of at least 0.5 mm. The recess may have a recess height of at least 2 mm. The recess may have a recess height of up to 5 mm. The recess may have a recess height of up to 4 mm. The recess may have a recess height between 0.5 mm and 5 mm. The recess may have a recess height between 1 mm and 5 mm. The recess may have a recess height between 2 mm and 4 mm.

[0064] The base may include a heater assembly. The heater assembly may be fixedly attached to the base. The heater assembly may extend along the base. The heater assembly may be disposed on the cap-facing side of the base. The heater assembly may be disposed on the aerosol-generating article-facing side of the base. The heater assembly may be disposed closer to the cavity than the base. The heater assembly may include a heater plate.

[0065] The heater assembly can be configured to contact the aerosol-generating article when it is arranged in the cavity.

[0066] The aerosol generating apparatus may include a power source such as a battery. In use, the power source supplies power to the heater assembly. The aerosol generating apparatus may include a controller. The controller may be configured to control the power from the power supply source to the heater assembly.

[0067] According to this disclosure, an aerosol generation system is provided. The aerosol generation system may include an aerosol generation article. The aerosol generation article may include an aerosol generation matrix. The aerosol generation system may include a housing. The housing may define a cavity. The cavity may be configured to receive the aerosol generation article. The housing may be movable between an open position and a closed position. The open position may be configured such that the aerosol generation article can be inserted into the housing. The closed position may be configured such that the aerosol generation article can be accommodated within the housing. The aerosol generation system may include a heater assembly. The heater assembly may be configured to heat the aerosol generation article. The heater assembly may be configured to heat the aerosol generation article when it is disposed in the cavity. The cavity may be at least partially defined by a curved concave inner wall of the housing. The curved concave inner wall of the housing may be configured to receive at least a portion of the aerosol generation article.

[0068] According to this disclosure, an aerosol generation system is provided. The aerosol generation system includes an aerosol generation article comprising an aerosol generation matrix. The aerosol generation system includes a housing defining a cavity configured to receive the aerosol generation article, the housing being movable between an open position in which the aerosol generation article can be inserted into the housing, and a closed position in which the aerosol generation article can be accommodated within the housing. The aerosol generation system includes a heater assembly configured to heat the aerosol generation article when it is disposed in the cavity. The cavity is at least partially defined by a curved concave inner wall of the housing configured to receive at least a portion of the aerosol generation article.

[0069] Aerosol-generating articles may include containers that contain particulate aerosol-generating matrix.

[0070] Aerosol-generating articles may include flexible containers that contain the aerosol-generating matrix.

[0071] The aerosol generating article may include a container. The container may have a flexible outer shell. The container may have a base. The base may be a rigid base. The base may be less flexible than the flexible outer shell. The flexible outer shell and the rigid base may encapsulate the aerosol generating matrix. When the aerosol generating article is within the housing of the device, the base of the aerosol generating article may contact the heater assembly.

[0072] The aerosol-generating article can be any aerosol-generating article. An aerosol-generating article can include a container. The container can include a first wall and a second wall. The first wall can be substantially planar, or may have a substantially planar portion. The second wall can be substantially planar, or may have a substantially planar portion. The first and second walls can together define a matrix compartment. An aerosol-generating matrix can be disposed within the matrix compartment. The container can be a bag. The container can have a closed shell shape. The container can contain a flexible material. The container can include a soft shell.

[0073] The first wall may comprise a different material than the second wall. The first wall may comprise 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. At least a portion of the first wall may be porous. As used herein, the term "cellulose-based material" refers to a material made of cellulose or a cellulose derivative. The first wall may comprise any cellulose-based material. The first wall may comprise a nonwoven material. As used herein, 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 incorporated yarns or filaments, or by wet felting (whether or not additionally needle-punched). The fibers may be of natural or man-made origin.

[0074] The first wall may contain molded paper material.

[0075] The second wall can be non-porous. The second wall can be made of a substantially planar material. The second wall can be made of paper material.

[0076] The aerosol-generating matrix may contain at least one alkaloid. As used herein, 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 act 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 disclosure, the term "alkaloid compound" is used to describe both naturally derived alkaloid compounds and synthetically produced alkaloid compounds. Alkaloid compounds suitable for aerosol-generating elements include, but are not limited to, nicotine and neonicotinoids. In a preferred embodiment, the aerosol-generating matrix contains nicotine or neonicotinoids. In a particularly preferred embodiment, the aerosol-generating matrix contains nicotine. As used herein, the term "nicotine" is used to describe nicotine, nicotine bases, or nicotine salts. In embodiments where the aerosol-generating matrix comprises a nicotine base or a nicotine salt, the amount of nicotine described herein is either the amount of free base nicotine or the amount of protonated nicotine. The aerosol-generating matrix may contain natural or synthetic nicotine. The aerosol-generating matrix may contain one or more monoproton nicotine salts. As used herein, the term "monoproton nicotine salt" is used to describe a nicotine salt of a monocarboxylic acid. The aerosol-generating matrix may contain nicotine.

[0077] 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 about 80% by weight of the aerosol forming agent. The aerosol generating matrix may contain a polyol. The polyol acts as an aerosol forming agent in the aerosol generating matrix. Suitable polyols for use in the aerosol generating matrix include, but are not limited to, propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol. Preferably, in the aerosol generating matrix, the polyol is selected from glycerol, propylene glycol, and combinations thereof. In a particularly preferred embodiment, the polyol is glycerol.

[0078] The aerosol generating matrix may include particles. 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. The aerosol generating matrix may include particles with diameters less than or equal to 5 millimeters, less than or equal to 4 millimeters, or less than or equal to 3 millimeters. The aerosol generating matrix may include particles with diameters between 500 micrometers and 3 millimeters. The aerosol generating matrix may include particles with a diameter of approximately 1.5 millimeters.

[0079] 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. 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. The matrix compartment can hold between 80 mg and 300 mg of aerosol generation matrix, between 85 mg and 250 mg of aerosol generation matrix, and between 100 mg and 200 mg of aerosol generation matrix.

[0080] The aerosol-generating article may have a length of at least 5 mm. Preferably, the aerosol-generating article has a length of at least 10 mm. The aerosol-generating article may have a length of up to 20 mm. Preferably, the aerosol-generating article has a length of up to 18 mm. The aerosol-generating article may have a length between 11 mm and 17 mm. The length of the aerosol-generating article can be measured in the direction of the airflow through the aerosol-generating device.

[0081] The aerosol-generating article may have a width of at least 5 mm. Preferably, the aerosol-generating article has a width of at least 7 mm. More preferably, the aerosol-generating article has a width of at least 9 mm. The aerosol-generating article may have a width of up to 20 mm. Preferably, the aerosol-generating article has a width of up to 16 mm.

[0082] The aerosol-generating article may have a height of at least 2 mm. Preferably, the aerosol-generating article has a height of at least 4 mm. The aerosol-generating article may have a height of up to 10 mm. Preferably, the aerosol-generating article has a height of up to 7 mm. More preferably, the aerosol-generating article has a height of up to 6 mm.

[0083] An aerosol generating article may be configured to extend into a recess defined by a curved concave inner wall. The aerosol generating article may be configured to deform into the recess defined by the curved concave inner wall. When the aerosol generating device moves from an open position to a closed position, the aerosol generating device may cause the aerosol generating article to change shape. The aerosol generating device may cause the aerosol generating article to deform into the recess defined by the curved concave inner wall. The aerosol generating device may cause at least a portion of the aerosol generating article to bend into the recess defined by the curved concave inner wall. When the aerosol generating device is in the closed position, the aerosol generating article may conform to the curved concave inner wall of the aerosol generating device. The aerosol generating article may be configured to substantially fill the recess when received in a housing and when the housing is in the closed position. The aerosol generating article may be configured to substantially fill the cavity when received in a housing and when the housing is in the closed position. The aerosol generating device may be configured such that closing the housing causes the aerosol generating article to deform into the recess.

[0084] The aerosol generating article may have a substantially planar portion or wall. The substantially planar portion or wall may be configured to extend into the curved concave inner wall of the aerosol generating device when the aerosol generating device is in the closed position. The aerosol generating article may have a portion whose radius of curvature is greater than the radius of curvature of the curved concave inner wall. The portion of the aerosol generating article whose radius of curvature is greater than the radius of curvature of the curved concave inner wall may be configured to extend into the curved concave inner wall of the device when the aerosol generating device is in the closed position.

[0085] Aerosol generating articles may include containers configured to conform to the curved concave inner wall of an aerosol generating apparatus. The container may be filled with a recess defined by the curved concave inner wall. Any aerosol generating matrix within the container may be substantially uniformly distributed within the recess. In aerosol generating articles having a flexible outer shell and a base, the flexible outer shell may be configured to conform to the curved concave inner wall of the aerosol generating apparatus.

[0086] 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.

[0087] Ex1. An aerosol generating apparatus for use with an aerosol generating article, the aerosol generating apparatus comprising:

[0088] A housing defining a cavity configured to receive an aerosol-generating article, the housing being movable between an open position and a closed position, wherein in the open position the aerosol-generating article can be inserted into the housing, and in the closed position the aerosol-generating article can be accommodated within the housing;

[0089] A heater assembly configured to heat the aerosol-generating article when it is disposed in the cavity;

[0090] The cavity is at least partially defined by a curved concave inner wall of the housing, the curved concave inner wall being configured to receive at least a portion of the aerosol-generated article.

[0091] Ex1.1 The aerosol generating apparatus according to Ex1, wherein the cavity for receiving the article is a substantially enclosed space.

[0092] Ex1.2 The aerosol generating apparatus according to Ex1, wherein the cavity for receiving the article is a substantially enclosed space except for any orifice configured to allow airflow through the cavity.

[0093] Ex1.3 An aerosol generating apparatus according to any one of Ex1 to Ex1.2, wherein the curved concave inner wall has a radius of curvature of at least 1 mm in a first direction.

[0094] Ex2. An aerosol generating apparatus according to any one of Ex1 to Ex1.3, wherein the curved concave inner wall has at least a portion with zero Gaussian curvature.

[0095] Ex2.1 An aerosol generating apparatus according to any one of Ex1 to Ex2, wherein the curved concave inner wall has zero Gaussian curvature.

[0096] Ex2.2 An aerosol generating apparatus according to any one of Ex1 to Ex2.1, wherein the curved concave inner wall has at least a portion as an expandable surface.

[0097] Ex3. An aerosol generating apparatus according to any one of Ex1 to Ex2.2, wherein the curved concave inner wall is an expandable surface.

[0098] Ex4. An aerosol generating apparatus according to any one of Ex1 to Ex3, wherein the curved concave inner wall has a curved cross-sectional shape in a first plane.

[0099] Ex5. An aerosol generating apparatus according to any one of Ex1 to Ex4, wherein the curved concave inner wall has a straight cross-sectional shape in a second plane, the second plane being perpendicular to the first plane.

[0100] Ex6. An aerosol generating apparatus according to any one of Ex1 to Ex5, wherein the curved concave inner wall has a semi-cylindrical shape.

[0101] Ex6.1 The aerosol generating apparatus according to Ex6, wherein the semi-cylindrical shape is a substantially circular semi-cylindrical shape.

[0102] Ex6.2 The aerosol generating apparatus according to Ex6, wherein the semi-cylindrical shape is a substantially elliptical semi-cylindrical shape.

[0103] Ex6.3 An aerosol generating apparatus according to Ex6.2, wherein the substantially elliptical semi-cylindrical shape has a width at the opening of the curved concave inner wall and a height in the radial direction of the semi-cylindrical shape, wherein the width is perpendicular to the height measurement and the width is greater than the height.

[0104] Ex7. An aerosol generating apparatus according to any one of Ex1 to Ex6.3, wherein the curved concave inner wall has a substantially symmetrical shape.

[0105] Ex8. An aerosol generating apparatus according to any one of Ex1 to Ex7, wherein the curved concave inner wall has a radius of curvature between 2 mm and 6 mm in a first direction.

[0106] Ex9. An aerosol generating apparatus according to any one of Ex1 to Ex8, wherein the curved concave inner wall has a zero radius of curvature in a second direction, the second direction being perpendicular to the first direction.

[0107] Ex9.1. An aerosol generating apparatus according to any one of Ex1 to Ex9, wherein the curved concave inner wall forms at least 50% of the cavity.

[0108] Ex9.2. An aerosol generating apparatus according to any one of Ex1 to Ex9.1, wherein the curved concave inner wall extends in the direction of the airflow through the aerosol generating apparatus.

[0109] Ex10. An aerosol generating apparatus according to any one of Ex1 to Ex9.2, wherein the housing includes a cap and a base, the cap being removably attached to the base, the cap being movable between an open position and a closed position, wherein in the open position the aerosol generating article can be inserted into the housing, and in the closed position the aerosol generating article can be contained within the housing.

[0110] Ex11. An aerosol generating apparatus according to Ex10, wherein the cap and the base together substantially define the cavity, and wherein the cap includes the curved concave inner wall.

[0111] Ex12. An aerosol generating apparatus according to Ex10 or Ex11, wherein the base includes the heater assembly.

[0112] Ex12.1 An aerosol generating apparatus according to any one of Ex10 to Ex12, wherein the cap includes at least two cap arms configured to extend toward the base when the housing is in the closed position.

[0113] Ex12.2 An aerosol generating apparatus according to any one of Ex10 to Ex12.1, wherein the base includes at least two base arms configured to extend toward the cap when the housing is in the closed position.

[0114] Ex13. An aerosol generating apparatus according to any one of Ex1 to Ex12.2, wherein the heater assembly is configured to contact the aerosol generating article when the aerosol generating article is arranged in the cavity.

[0115] Ex14. An aerosol generation system, comprising:

[0116] Aerosol-generating products, including aerosol-generating matrices;

[0117] A housing defining a cavity configured to receive the aerosol-generating article, the housing being movable between an open position and a closed position, in which the aerosol-generating article can be inserted into the housing, and in the closed position, the aerosol-generating article can be accommodated within the housing;

[0118] A heater assembly configured to heat the aerosol-generating article when it is disposed in the cavity;

[0119] The cavity is at least partially defined by a curved concave inner wall of the housing, the curved concave inner wall being configured to receive at least a portion of the aerosol-generated article.

[0120] Ex14.1. An aerosol generation system according to Ex14, wherein the cavity for receiving the article is a substantially enclosed space.

[0121] Ex14.2. An aerosol generation system according to Ex14 or Ex14.1, wherein the curved concave inner wall has a radius of curvature of at least 1 mm in the first direction.

[0122] Ex15. An aerosol generation system according to any one of Ex14 to 14.2, wherein the aerosol generation article includes a container containing a particulate aerosol generation matrix.

[0123] Ex16. An aerosol generation system according to any one of Ex14 to Ex15, wherein the aerosol generation article includes a flexible container containing an aerosol generation matrix.

[0124] Ex17. An aerosol generation system according to any one of Ex14 to Ex16, wherein the aerosol generation article comprises a container having a flexible shell and a rigid base, the flexible shell and the rigid base encapsulating the aerosol generation matrix.

[0125] Ex18. An aerosol generation system according to Ex17, wherein when the aerosol generation article is received in the cavity of the housing, the rigid base of the aerosol generation article contacts the heater assembly. Attached Figure Description

[0126] The examples will now be described further with reference to the accompanying drawings, in which:

[0127] Figure 1 A cross-sectional view of the aerosol generation apparatus of this disclosure is shown;

[0128] Figure 2 A cross-sectional view of the aerosol-generated article of this disclosure is shown;

[0129] Figure 3 A cross-sectional view of a first embodiment of the aerosol generating apparatus and aerosol generating article of the present disclosure is shown, wherein the aerosol generating apparatus (a) is in the open position and (b) is in the closed position;

[0130] Figure 4 A perspective view of the cap of the aerosol generating apparatus of this disclosure is shown; and

[0131] Figure 5 A cross-sectional view of a second embodiment of the aerosol generating apparatus and aerosol generating article of the present disclosure is shown, wherein the aerosol generating apparatus is in the off position. Detailed Implementation

[0133] Figure 1 A cross-sectional view of the aerosol generating apparatus 10 is shown. The aerosol generating apparatus 10 is intended for use with aerosol-generating articles ( Figure 1 (Not shown in the image) Used together. Device 10 includes device housing 11. Device housing 11 includes a first device housing portion 12 and a second device housing portion 13. The second device housing portion 13 is movable relative to the first device housing portion 12. Device housing 11 includes a cavity 14 for receiving aerosol-generated articles. The cavity 14 for receiving aerosol-generated articles is a substantially enclosed space.

[0134] The aerosol generating device 10 includes a planar wall 15. The planar wall 15 and the wall surrounding the cavity 14 of the second device housing portion 13 define a heating chamber.

[0135] The device housing 11 includes a heater assembly 310 configured to heat the aerosol-generating article when it is received in the cavity 14.

[0136] The device housing 11 includes a device air inlet (not shown). The device housing 11 includes a pressure sensor 17 for detecting the airflow through the aerosol generating device 10. Specifically, the first device housing portion 12 includes the pressure sensor 17. However, it should be understood that the pressure sensor may alternatively be located in the second device housing portion 13.

[0137] Cavity 14 includes one or more air inlets and one or more aerosol outlets. Figure 1 (Not shown in the image).

[0138] A mouthpiece 18 is disposed at the downstream end of the aerosol generating device 10. The mouthpiece 18 includes an aerosol outlet (not shown). The first device housing portion 12 and the second device housing portion 13 are in an open position (not shown) and a closed position (as shown in the image). Figure 1 The device housing 11 is movable between the two positions shown in the diagram. When moved from the open position to the closed position, the device housing 11 is configured such that the first device housing portion 12 and the second device housing portion 13 can move toward each other in the longitudinal direction 201 of the aerosol generating device 10, and subsequently move toward each other in the lateral direction 203 of the aerosol generating device 10.

[0139] Figure 2 The diagram shows an aerosol generating article 20 for use with the aerosol generating apparatus of this disclosure. The aerosol generating article 20 includes a container 25. The container 25 includes a first wall 21 and a second wall 22, which together define a matrix compartment 23. An aerosol generating matrix 24 is disposed within the matrix compartment.

[0140] exist Figure 2 In the example shown, the first wall 21 is formed of a nonwoven cotton material. The first wall 21 comprises between 85% 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 21 is porous.

[0141] The second wall 22 comprises paper. The second wall 22 has a basis weight of approximately 35 gsm. The second wall 22 is non-porous.

[0142] The second wall 22 is essentially planar. The second wall 22 has higher rigidity than the first wall 21. In this way, the first wall 21 can be substantially formed into a bag shape closed by the second wall 22.

[0143] Aerosol generating matrix 24 is disposed in matrix compartment 23. Aerosol generating matrix 24 contains homogenized tobacco material particles and an aerosol forming agent. The aerosol forming agent includes glycerol. Matrix compartment 23 contains approximately 150 mg of aerosol generating matrix 24.

[0144] The aerosol generating article 20 is configured to be inserted into the aerosol generating device 100 such that the second wall 22 is oriented toward or aligned with the planar base 300 of the aerosol generating device 100.

[0145] Figure 3 A cross-sectional view through the aerosol generating apparatus 100 and the aerosol generating article 20 of a first embodiment is shown, wherein the aerosol generating apparatus (a) is in the open position and (b) is in the closed position.

[0146] The aerosol generating device 100 includes a housing 11. The housing 11 includes a cap 200 and a base 300. Figure 3 The hat 200 is Figure 1 Part of the second device housing 13 of the aerosol generating device 10. Figure 3 The base 300 is Figure 1 A part of the first device housing portion 12 of the aerosol generating device 10.

[0147] like Figure 3 As can be seen, in the open position, the aerosol generating article 20 can be received in the base 300. In the closed position, the aerosol generating article is housed within the device housing 11 between the cap 200 and the base 300.

[0148] The cap 200 includes a curved concave inner wall 210. The curved concave inner wall 210 has a semi-cylindrical shape. The curved concave inner wall 210 has a radius of curvature of at least 1 mm. The curved concave inner wall 210 defines a recess having a recess width 206. The recess has a recess depth in the longitudinal direction 201.

[0149] The curved concave inner wall 210 is configured to receive part of the aerosol-generated article 20. The curved concave inner wall 210 has zero Gaussian curvature. The curved concave inner wall 210 is a deployable surface.

[0150] The cap 200 includes a first arm 250 and a second arm 260. For example, as... Figure 4 As shown, the first cap arm 250 and the second cap arm 260 extend along the length of the cap 200 in the longitudinal direction 201. The curved concave inner wall 210 and the first cap arm 250 and the second cap arm 260 define a recess having a recess height 205.

[0151] like Figure 3As shown in (b), the first cap arm 250 and the second cap arm 260 are configured to hold the aerosol-generating article between the cap 200 and the base 300 when the cap and base are in the closed position.

[0152] The cap 200 includes a first cap extension 241 and a second cap extension 242. The first cap extension 241 and the second cap extension 242 extend away from each other in the lateral direction 202. Figure 3 As shown in (b), when the cap 200 and the base 300 are in the closed position, the first cap extension 241 and the second cap extension 242 are in contact with the base 300.

[0153] The base 300 includes a heater assembly 310. The base 300 includes a planar portion 320. The base 300 includes a first base arm 350 and a second base arm 360. When the housing 11 is in the closed position, the first base arm 350 and the second base arm 360 extend toward the cap 200. The first base arm 350 and the second base arm 360 extend along the base in the longitudinal direction 201. Figure 3 As shown in (b), the first base arm 350 and the second base arm 360 are configured to retain at least a portion of the aerosol-generating article when the housing 11 is in the closed position.

[0154] when Figure 3 (a) The cap 200 faces Figure 3 (a) As the base 300 moves, the first base arm 250 and the second base arm 260 extend into the aerosol-generating article 20. The first base arm 250 clamps a first portion 27 of the aerosol-generating article between the first base arm 250 and the base 300. The second base arm 260 clamps a second portion 28 of the aerosol-generating article between the second base arm 260 and the base 300. The inner portion 29 of the aerosol-generating article moves freely into a recess defined by the curved concave inner wall 210 until the inner portion 29 contacts the curved concave inner wall 210. Figure 3 In the closed position (b), the inner portion 29 completely fills the recess and conforms to the curved concave inner wall 210. The curved concave inner wall 210 provides the recess shape, which the inner portion 29 can easily conform to. Given that the curved concave inner wall 210 has zero Gaussian curvature and is a deployable surface, the inner portion 29 can conform to the shape of the curved concave inner wall 210 without stretching.

[0155] Figure 4 A perspective view of the cap 200 is shown. Figure 4 Hat 200 and Figure 3 The difference between the hat 200 and the hat 200 is that... Figure 4The curved concave wall 210 of the cap 200 includes a first portion 211, a second portion 212, and a third portion 213. The first portion 211 has a radius of curvature of at least 1 mm. The third portion 213 has a radius of curvature of at least 1 mm. The second portion 212 has a zero radius of curvature. Figure 4 The curved concave inner wall 210 and Figure 3 Similar to the curved concave inner wall 210, a concave shape is provided, which the inner portion 29 of the aerosol generating article 20 can easily conform to. Given that... Figure 4 The curved concave inner wall 210 has zero Gaussian curvature and defines the shape of the unfoldable surface, so that the inner portion 29 can conform to the shape of the curved concave inner wall 210 without stretching.

[0156] Figure 5 A second embodiment of the aerosol generating apparatus 100 and the aerosol generating article 20 is shown, wherein the aerosol generating apparatus is in the off position. In addition to including the first cap arm extension 270 and the second cap arm extension 280... Figure 5 The aerosol generating device is as follows: Figure 3 and Figure 4 As described above. When the housing 11 is in the closed position, the first cap arm extension 270 and the second cap arm extension 280 contact the base 300. When the housing 11 is in the closed position, the first cap arm extension 270 and the second cap arm extension 280 surround the aerosol-generated article 20.

[0157] 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. Furthermore, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges that may or may not be specifically listed herein. Thus, in this document, the number A is understood to be A ± 10% of A. In this document, the number A may be considered to be a value within the general standard error of the measurement of the property modified by the number A. In certain instances used in the appended claims, the number 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. Moreover, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges that 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 defining a cavity configured to receive an aerosol-generating article, the housing being movable between an open position and a closed position, wherein in the open position the aerosol-generating article can be inserted into the housing, and in the closed position the aerosol-generating article can be accommodated within the housing; A heater assembly configured to heat the aerosol-generating article when it is disposed in the cavity; The cavity is at least partially defined by a curved concave inner wall of the housing, the curved concave inner wall being configured to receive at least a portion of the aerosol-generated article. The cavity for receiving the article is a substantially enclosed space, and The curved concave inner wall has a radius of curvature of at least 1 mm in the first direction.

2. The aerosol generating apparatus according to claim 1, wherein the curved concave inner wall has at least a portion with zero Gaussian curvature.

3. The aerosol generating apparatus according to claim 1 or claim 2, wherein the curved concave inner wall is an expandable surface.

4. The aerosol generating apparatus according to any one of the preceding claims, wherein the curved concave inner wall has a semi-cylindrical shape.

5. The aerosol generating apparatus according to any one of the preceding claims, wherein the curved concave inner wall has a substantially symmetrical shape.

6. The aerosol generating apparatus according to any one of the preceding claims, wherein the curved concave inner wall forms at least 50% of the cavity.

7. The aerosol generating apparatus according to any one of the preceding claims, wherein the curved concave inner wall has a zero radius of curvature in a second direction, the second direction being perpendicular to the first direction.

8. The aerosol generating apparatus according to any one of the preceding claims, wherein the housing includes a cap and a base, the cap being removably attached to the base, the cap being movable between an open position and a closed position, wherein in the open position the aerosol generating article is insertable into the housing, and in the closed position the aerosol generating article is accommodated within the housing.

9. The aerosol generating apparatus of claim 8, wherein the cap and the base together substantially define the cavity, and wherein the cap includes the curved concave inner wall.

10. The aerosol generating apparatus according to claim 8 or claim 9, wherein the base includes the heater assembly.

11. The aerosol generating apparatus according to any one of the preceding claims, wherein the heater assembly is configured to contact the aerosol generating article when the aerosol generating article is disposed in the cavity.

12. An aerosol generation system, comprising: Aerosol-generating products, including aerosol-generating matrices; A housing defining a cavity configured to receive the aerosol-generating article, the housing being movable between an open position and a closed position, in which the aerosol-generating article can be inserted into the housing, and in the closed position, the aerosol-generating article can be accommodated within the housing; A heater assembly configured to heat the aerosol-generating article when it is disposed in the cavity; The cavity is at least partially defined by a curved concave inner wall of the housing, the curved concave inner wall being configured to receive at least a portion of the aerosol-generated article. The cavity for receiving the article is a substantially enclosed space, and The curved concave inner wall has a radius of curvature of at least 1 mm in the first direction.

13. The aerosol generation system of claim 12, wherein the aerosol generation article comprises a container containing a particulate aerosol generation matrix.

14. The aerosol generation system according to claim 12 or claim 13, wherein the aerosol generation article comprises a flexible container containing an aerosol generation matrix.

15. The aerosol generation system according to any one of claims 12 to 14, wherein the aerosol generation article comprises a container having a flexible shell and a rigid base, the flexible shell and the rigid base encapsulating the aerosol generation matrix.

Images