Aerosol generating device

Abstract

An aerosol generating device (101) is described. The device (101) generates an aerosol from an aerosol-generating material. The device (101) has a container (212) defining a heating region (215) in which at least a portion of an article (110) comprising the aerosol-generating material is received. A heating element (220) projects into the heating region (215). The heating element (220) comprises a peripheral surface (223). At least a portion of the peripheral surface (223) is tapered.

Description

[Technical Field]

[0001] The present invention relates to an aerosol-generating device for generating an aerosol from an aerosol-generating material. The present invention further relates to an aerosol delivery system comprising the aerosol-generating device and an article comprising the aerosol-generating material.

[0002] Smoking articles, such as cigarettes, cigars, and the like, burn tobacco during use to produce tobacco smoke. Attempts to provide alternatives to these tobacco-burning articles have been made by creating products that release compounds without combustion. An example of such a product is a heating device that releases compounds by heating a material rather than burning it. The material may be, for example, tobacco or other non-tobacco products that may or may not contain nicotine. Overview

[0003] According to an aspect, an aerosol generating device for generating an aerosol from an aerosol-generating material is provided, the aerosol generating device comprising: a container defining a heating region configured to receive at least a portion of an article comprising the aerosol-generating material; and a heating element protruding into the heating region, the heating element comprising a peripheral surface, at least a portion of which is tapered.

[0004] The heating element may be configured to be heated to a temperature sufficient to generate an aerosol from the aerosol-forming material.

[0005] The heating element may be elongated and a substantial portion of the peripheral surface may be tapered in the longitudinal direction of the heating element.

[0006] At least one third of the heating elements may have a tapered peripheral surface.At least one half of the heating elements may have a tapered peripheral surface.

[0007] At least 90 percent of the heating elements may include a tapered peripheral surface.

[0008] The tapered peripheral surface may extend between opposing ends of the heating element. The heating element may be tapered along the length of the heating element. The heating element may be tapered along the entire length of the heating element. The heating element may comprise a frustum shape. The heating element may comprise a pyramidal shape, such as a conical shape.

[0009] The taper of the heating element may vary along the longitudinal length of the taper.

[0010] The heating element may comprise a first portion and a second portion, the first portion having a greater angle of taper than the second portion.

[0011] The first portion may be a tapered portion and the second portion may be a non-tapered portion.

[0012] The device may include a base at the distal end of the container, with the heating element projecting into the heating region, and a proximal end.

[0013] The second portion may be at the distal end.

[0014] The second portion may include a neck.

[0015] The first and second parts may be integrally formed. As used herein, the term "integrally formed" is intended to mean that the features are not separable.

[0016] The first and second portions may be a unitary component. As used herein, the term "unitary component" is intended to mean that the features are formed integrally such that no joints are defined between the features.

[0017] The device may include a base at the distal end of the container, with the heating element projecting into the heating region, and a proximal end.

[0018] The heating element may include a third portion, the third portion being at the distal end.

[0019] The third portion may comprise a neck. The third portion may not include a heating material that is heatable by the penetration of a varying magnetic field.

[0020] A dimension of the first portion at the junction of the first and second portions perpendicular to the longitudinal axis of the heating element can be smaller than a dimension of the first portion perpendicular to the longitudinal axis of the heating element, and a maximum diameter of the first portion can be smaller than a maximum diameter of the first portion.

[0021] The container may include a base and the neck may define a recess in the base.

[0022] The device may comprise an air outlet in fluid communication with the heating region for supplying air to the heating region. The air outlet may be in the recess.

[0023] The heating element may be truncated.

[0024] The heating element may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0025] The first portion may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0026] The second portion may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0027] The taper may extend at an angle between 5 degrees and 30 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle between 10 degrees and 15 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle between 15 degrees and 20 degrees relative to the longitudinal axis of the heating element.

[0028] The taper may extend at an angle of at least 5 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle of at least 10 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle of at least 15 degrees relative to the longitudinal axis of the heating element.

[0029] The container may not contain a heating material that is heatable by the penetration of a fluctuating magnetic field.

[0030] The device may include a magnetic field generator including an inductor coil configured to generate a varying magnetic field.

[0031] The inductor coil may be a spiral inductor coil.

[0032] The inductor coil may be a helical inductor coil. The inductor coil may be at least one of a planar coil and a helical coil. The helical coil may be a flat helical coil.

[0033] The heating element may comprise a portion of a resistive heating arrangement.

[0034] Apparatus of this aspect may include one, more or all of the features described below as appropriate.

[0035] According to an aspect, an aerosol generating device for generating an aerosol from an aerosol-generating material is provided, the aerosol generating device comprising: a container defining a heating region configured to receive at least a portion of an article comprising the aerosol-generating material; and a heating element protruding into the heating region, the heating element comprising a neck.

[0036] The heating element may comprise a first portion and a second portion, the second portion extending between the container and the first portion, the second portion forming a neck.

[0037] The second portion may comprise a column.

[0038] The first portion may form a step at the junction with the second portion.

[0039] A dimension of the first portion in a direction perpendicular to the longitudinal axis of the heating element can be greater than a dimension of the second portion in a direction perpendicular to the longitudinal axis of the heating element at a junction of the first and second portions, and a maximum diameter of the first portion can be less than a maximum diameter of the first portion.

[0040] The second portion may include a taper.

[0041] The container may include a base and the neck may define a recess in the base.

[0042] The device may comprise an air outlet in fluid communication with the heating region for supplying air to the heating region. The air outlet may be in the recess.

[0043] The air outlet may be in the base.

[0044] The air outlet may be in the neck.

[0045] The neck may not contain any heating material that is heatable by the penetration of a fluctuating magnetic field.

[0046] The heating element may include a portion extending outward from the container. The heating element may include a first portion outside the heating zone and a second portion projecting into the heating zone. The portion extending outward from the container may be heated and thermally conductively connected to a portion of the heating element in the heating zone. As used herein, the term "conductively connected between" does not necessarily mean that two features are directly connected to each other; such a configuration may include one or more additional features between them.

[0047] According to an aspect, there is provided an aerosol delivery system comprising an aerosol generating device as described by any of the above and an article comprising an aerosol-generating material.

[0048] According to an aspect, an aerosol generation system is provided that includes an article comprising an aerosol-generating material; an aerosol generating device for heating the aerosol-generating material, the aerosol generating device including a container defining a heating region configured to receive at least a portion of the article; and a heating element protruding into the heating region, the heating element including a peripheral surface, at least a portion of the peripheral surface being tapered.

[0049] According to an aspect, an aerosol generation system is provided, comprising: an article comprising an aerosol-generating material; an aerosol-generating device for heating the aerosol-generating material, the aerosol-generating device comprising a container defining a heating region configured to receive at least a portion of the article; and a heating element protruding into the heating region, the heating element comprising a neck.

[0050] The article may include a pre-formed hole configured to receive the heating element.

[0051] The item may be a consumable item.

[0052] The heating element may be configured to seal at the face of the hole.

[0053] The article may include an engagement feature configured to engage with the heating element.

[0054] The engagement feature may be at least one of a hole, a collar, a shoulder, a ridge, a protrusion, a recess, a lip, a chamfer, an area of ​​increased thickness, an area of ​​reduced thickness, a face, and an edge.

[0055] The heating element may be removable from the heating zone. The heating element may be replaceable.

[0056] The heating element may be raised from a base. The heating element may have a sharp edge or point at its free end. The heating element may be a pin or blade. The heating element may be configured to penetrate an item received by the heating zone.

[0057] The heating element and the vessel may be coaxial.

[0058] Apparatus of this aspect may include one, more, or all of the features described above, as appropriate.

[0059] The aerosol generating device may be a non-combustible aerosol generating device.

[0060] The device may be a tobacco heating device, also known as a non-combustion heating device.

[0061] The aerosol-forming material may be a non-liquid aerosol-forming material.

[0062] The article may be sized to be at least partially received in the heating zone.

[0063] According to an aspect, an aerosol-generating device for generating an aerosol from an aerosol-generating material is provided, the aerosol-generating device comprising: a container defining a heating region configured to receive at least a portion of an article comprising the aerosol-generating material; and a heating element arranged to heat the heating region.

[0064] According to an aspect, an aerosol generating system is provided, comprising: an article comprising an aerosol-generating material; an aerosol generating device for heating the aerosol-generating material, the aerosol generating device comprising a heating region configured to receive at least a portion of the article; and a heating element.

[0065] According to an aspect, an aerosol generating device for generating an aerosol from an aerosol-generating material is provided, the aerosol generating device comprising: a heating element configured to be received in at least a portion of an article comprising the aerosol-generating material; and a base from which the heating element protrudes, the heating element comprising a peripheral surface, at least a portion of the peripheral surface being tapered.

[0066] The device may comprise a heating region around the heating element configured to at least partially receive the article comprising the aerosol-forming material.

[0067] The device may include a housing, the housing defining a base.

[0068] At least a portion of the heating element may be exposed.

[0069] The base may include a raised rim extending around and spaced from the base end of the heating element.

[0070] The heating element may be configured to be heated to a temperature sufficient to generate an aerosol from the aerosol-forming material.

[0071] The heating element may be elongated and a substantial portion of the peripheral surface may be tapered in the longitudinal direction of the heating element.

[0072] At least one third of the heating elements may have a tapered peripheral surface.At least one half of the heating elements may have a tapered peripheral surface.

[0073] At least 90 percent of the heating elements may include a tapered peripheral surface.

[0074] The tapered peripheral surface may extend between opposing ends of the heating element. The heating element may be tapered along the length of the heating element. The heating element may be tapered along the entire length of the heating element. The heating element may comprise a frustum shape. The heating element may comprise a pyramidal shape, such as a conical shape.

[0075] The taper of the heating element may vary along the longitudinal length of the taper.

[0076] The heating element may comprise a first portion and a second portion, the first portion having a greater angle of taper than the second portion.

[0077] The first portion may be a tapered portion and the second portion may be a non-tapered portion.

[0078] The heating element may include a base end.

[0079] The second portion may be at the base end of the heating element.

[0080] The second portion may include a neck.

[0081] The first and second parts may be integrally formed. As used herein, the term "integrally formed" is intended to mean that the features are not separable.

[0082] The first and second portions may be a unitary component. As used herein, the term "unitary component" is intended to mean that the features are formed integrally such that no joints are defined between the features.

[0083] The heating element may include a base end.

[0084] The heating element may include a third portion, the third portion being at the proximal end.

[0085] The third portion may comprise a neck. The third portion may not include a heating material that is heatable by the penetration of a varying magnetic field.

[0086] A dimension of the first portion at the junction of the first and second portions perpendicular to the longitudinal axis of the heating element can be smaller than a dimension of the first portion perpendicular to the longitudinal axis of the heating element, and a maximum diameter of the first portion can be smaller than a maximum diameter of the first portion.

[0087] The neck may define a recess in the base.

[0088] The device may comprise an air outlet in fluid communication with the heating region for supplying air to the heating region. The air outlet may be in the recess.

[0089] The heating element may be truncated.

[0090] The heating element may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0091] The first portion may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0092] The second portion may comprise a heating material that is heatable by the penetration of a varying magnetic field.

[0093] The taper may extend at an angle between 5 degrees and 30 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle between 10 degrees and 15 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle between 15 degrees and 20 degrees relative to the longitudinal axis of the heating element.

[0094] The taper may extend at an angle of at least 5 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle of at least 10 degrees relative to the longitudinal axis of the heating element. The taper may extend at an angle of at least 15 degrees relative to the longitudinal axis of the heating element.

[0095] The housing may not contain a heating material that is heatable by the penetration of a fluctuating magnetic field.

[0096] The device may include a magnetic field generator including an inductor coil configured to generate a varying magnetic field.

[0097] The inductor coil may be a spiral inductor coil.

[0098] The inductor coil may be a helical inductor coil. The inductor coil may be at least one of a planar coil and a helical coil. The helical coil may be a flat helical coil.

[0099] The heating element may comprise a portion of a resistive heating arrangement.

[0100] According to an aspect, an aerosol generating device for generating an aerosol from an aerosol-generating material is provided, the aerosol generating device comprising: a heating element configured to be received in at least a portion of an article comprising the aerosol-generating material; and a base from which the heating element protrudes, the heating element comprising a neck.

[0101] The device may comprise a heating region around the heating element configured to at least partially receive the article comprising the aerosol-forming material.

[0102] The device may include a housing, the housing defining a base.

[0103] At least a portion of the heating element may be exposed.

[0104] The base may include a raised rim extending around and spaced from the base end of the heating element.

[0105] The heating element may comprise a first portion and a second portion, the second portion extending between the base and the first portion, the second portion forming a neck.

[0106] The second portion may comprise a column.

[0107] The first portion may form a step at the junction with the second portion.

[0108] A dimension of the first portion in a direction perpendicular to the longitudinal axis of the heating element can be greater than a dimension of the second portion in a direction perpendicular to the longitudinal axis of the heating element at a junction of the first and second portions, and a maximum diameter of the first portion can be less than a maximum diameter of the first portion.

[0109] The second portion may include a taper.

[0110] The neck may define a recess in the base.

[0111] The device may comprise an air outlet in fluid communication with the heating region for supplying air to the heating region. The air outlet may be in the recess.

[0112] The air outlet may be in the base.

[0113] The air outlet may be in the neck.

[0114] The neck may not contain any heating material that is heatable by the penetration of a fluctuating magnetic field.

[0115] According to an aspect, an aerosol generation system is provided, comprising: an article comprising an aerosol-generating material; an aerosol-generating device for heating the aerosol-generating material, the aerosol-generating device comprising a heating element configured to be received in at least a portion of the article comprising the aerosol-generating material; and a base from which the heating element protrudes, the heating element comprising a peripheral surface, at least a portion of the peripheral surface being tapered.

[0116] According to an aspect, an aerosol generation system is provided, comprising: an article comprising an aerosol-generating material; an aerosol generating device for heating the aerosol-generating material, the aerosol generating device comprising a heating element configured to be received in at least a portion of the article comprising the aerosol-generating material; and a base from which the heating element protrudes, the heating element comprising a neck.

[0117] The article may include a pre-formed hole configured to receive the heating element.

[0118] The item may be a consumable item.

[0119] The heating element may be configured to seal at the face of the hole.

[0120] The article may include an engagement feature configured to engage with the heating element.

[0121] The engagement feature may be at least one of a hole, a collar, a shoulder, a ridge, a protrusion, a recess, a lip, a chamfer, an area of ​​increased thickness, an area of ​​reduced thickness, a face, and an edge.

[0122] The heating element may be removable from the device. The heating element may be replaceable.

[0123] The heating element may be upstanding from a base. The heating element may have a sharp edge or point on a free end. The heating element may be a pin or blade. The heating element may be configured to penetrate an item received by the heating zone.

[0124] Apparatus of this aspect may include one, more, or all of the features described above, as appropriate.

[0125] The aerosol generating device may be a non-combustible aerosol generating device.

[0126] The device may be a tobacco heating device, also known as a non-combustion heating device.

[0127] The aerosol-forming material may be a non-liquid aerosol-forming material.

[0128] According to an aspect, there is provided an aerosol-generating device for generating an aerosol from an aerosol-generating material, the aerosol-generating device comprising: Housing and and an exposed heating arrangement protruding from the housing configured to be received by the aerosol product article and to heat the aerosol product article.

[0129] The heating arrangement may comprise a heating element protruding from the housing configured to be received in the aerosol product article.

[0130] The housing may include a base from which the heating element projects.

[0131] The heating arrangement may have a peripheral surface, at least a portion of which may be tapered. The heating element may have a peripheral surface, at least a portion of which may be tapered.

[0132] The heating arrangement may comprise a neck.The heating element may comprise a neck.

[0133] The heating region may extend around the exposed heating element and be configured to at least partially receive an article comprising the aerosol-forming material.

[0134] According to an aspect, an aerosol generating system is provided, comprising an article comprising an aerosol-generating material and an aerosol-generating device for heating the aerosol-generating material as described above.

[0135] The devices of these aspects may include one, more or all of the features described above, as appropriate.

[0136] Embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0137] [Figure 1] FIG. 1 is a front perspective view of an aerosol generation system having an aerosol generation device and an article inserted into the device. [Figure 2] FIG. 2 is a schematic diagram of the aerosol generation system of FIG. 1. [Figure 2A] 1 is a schematic diagram of an aerosol generation system having an aerosol generation device and an article for use with the device. [Figure 2B] FIG. 1 shows a schematic diagram of a part of an aerosol generating device. [Figure 3] 2 is a schematic diagram of a portion of the aerosol generating system of FIG. 1 with an article partially withdrawn from the device. [Figure 4] 2 is a schematic diagram of a portion of another configuration of the aerosol generating system of FIG. 1 with an article partially withdrawn from the device; FIG. [Figure 5] FIG. 2 is a schematic diagram illustrating part of another configuration of the device of the aerosol generation system of FIG. 1. [Figure 6] FIG. 2 is a schematic diagram illustrating part of another configuration of the device of the aerosol generation system of FIG. 1. [Figure 7] FIG. 2 is a schematic diagram illustrating part of another configuration of the device of the aerosol generation system of FIG. 1. [Figure 8] FIG. 2 is a schematic diagram illustrating part of another configuration of the device of the aerosol generation system of FIG. 1. Detailed Description

[0138] As used herein, the term "aerosol-forming material" includes materials that provide volatile components upon heating, typically in the form of an aerosol. Aerosol-forming materials may include any plant-based material, such as tobacco-containing materials, and may include, for example, one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. Aerosol-forming materials may also include other non-tobacco products, which may or may not contain nicotine, depending on the product. Aerosol-forming materials may be in the form of, for example, a solid, liquid, gel, wax, etc. Aerosol-forming materials may also be, for example, a combination or blend of materials. Aerosol-forming materials may also be referred to as "smoking materials."

[0139] The aerosol-forming material may comprise a binder and an aerosol former. Optionally, an active substance and / or a filler may also be present. Optionally, a solvent, such as water, may also be present, and one or more other components of the aerosol-forming material may or may not be soluble in the solvent. In some embodiments, the aerosol-forming material is substantially free of plant material. In some embodiments, the aerosol-forming material is substantially tobacco-free.

[0140] The aerosol-generating material may comprise or be an "amorphous solid." An amorphous solid may be a "monolithic solid." In some embodiments, the amorphous solid may be a dried gel. An amorphous solid is a solid material that can hold some fluid, such as a liquid, within it. In some embodiments, the aerosol-generating material may comprise, for example, about 50%, 60%, or 70% amorphous solid by weight, up to about 90%, 95%, or 100% amorphous solid by weight.

[0141] The aerosol-generating material may comprise an aerosol-generating film. The aerosol-generating film may comprise or be a sheet, which may optionally be shredded to form shredded sheets. The aerosol-generating sheet or shredded sheets may be substantially tobacco-free.

[0142] Devices are known that heat aerosol-generating material to volatilize at least one component of the aerosol-generating material to form an inhalable aerosol, typically without burning or combusting the aerosol-generating material. Such devices may be described as "aerosol-generating devices," "aerosol delivery devices," "non-combustion heating devices," "tobacco heating product devices," "tobacco heating devices," or the like. Similarly, there are so-called e-cigarette devices that vaporize aerosol-generating material, typically in liquid form, which may or may not contain nicotine. The aerosol-generating material may be in the form of a rod, cartridge, cassette, or the like that can be inserted into the device, or may be provided as part of a rod, cartridge, cassette, or the like that can be inserted into the device. A heater for heating and volatilizing the aerosol-generating material may be provided as a "permanent" part of the device.

[0143] The aerosol-generating device can receive an article comprising an aerosol-generating material for heating. An "article" in this context is a component that includes or contains the aerosol-generating material during use, and optionally other components during use, that is heated to volatilize the aerosol-generating material. A user inserts the article into the aerosol delivery device before the article is heated to produce an aerosol, which the user can then inhale. The article can be, for example, of a predetermined or specific size configured to be placed in a heating chamber of a device sized to receive the article.

[0144] 1 shows an example of an aerosol generation system 100. The system 100 comprises an aerosol generation device 101 for generating an aerosol from an aerosol-generating medium / material and a replaceable article 110 comprising the aerosol-generating medium. The device 101 can be used to heat the replaceable article 110 comprising the aerosol-generating medium to generate an aerosol or other inhalable medium that can be inhaled by a user of the device 101.

[0145] The device 101 comprises a housing 103 that surrounds and houses the various components of the device 101. The housing 103 is elongated. The device 101 has an opening 104 at one end through which an item 110 can be inserted for heating by the device 101. The item 110 can be fully or partially inserted into the device 101 for heating by the device 101.

[0146] In various embodiments, device 101 does not include an opening. In such a configuration, device 101, or a component of device 101, may be partially received within at least a portion of article 110.

[0147] The device 101 may include a user-operable control element 106, such as a button or switch, that when operated, e.g., pressed, causes the device 101 to operate. For example, a user can activate the device 101 by pressing the switch 106.

[0148] The device 101 defines a longitudinal axis 102, and the article 110 may extend along the longitudinal axis 102 when inserted into the device 101. The opening 104 is aligned with the longitudinal axis 102.

[0149] 2 is a schematic illustration of the aerosol generating system 100 of FIG. 1 showing various components of the device 101. It will be appreciated that the device 101 may include other components not shown in FIG.

[0150] As shown in FIG. 2 , device 101 includes an apparatus 200 for heating an aerosol-generating material. Apparatus 200 includes a heating assembly 201, a controller (control circuit) 202, and a power supply 204. Apparatus 200 includes a body assembly 210, which may include a chassis and other components that form part of the device. Heating assembly 201 is configured to heat an aerosol-generating medium or material of an article 110 inserted into device 101, thereby generating an aerosol from the aerosol-generating medium. Power supply 204 provides power to heating assembly 201, which converts the provided electrical energy into thermal energy for heating the aerosol-generating material.

[0151] The power source 204 may be, for example, a battery, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium batteries (such as lithium-ion batteries), nickel batteries (such as nickel-cadmium batteries), and alkaline batteries.

[0152] Power supply 204 may be electrically coupled to heating assembly 201 to provide power under the control of controller 202 when needed to heat the aerosol-generating material. Control circuitry 202 may be configured to activate and deactivate heating assembly 201 based on a user operating control element 106. For example, controller 202 may activate heating assembly 201 in response to a user operating switch 106.

[0153] The end of device 101 closest to opening 104 is sometimes referred to as the proximal end (or mouth end) 107 of device 101, as that end is closest to the user's mouth during use. During use, a user inserts article 110 into opening 104, operates user control 106 to begin heating the aerosol-generating material, and inhales the aerosol generated by the device. This causes the aerosol to flow through article 110 along a flow path toward the proximal end of device 101.

[0154] The other end of the device, furthest from opening 104, may be referred to as the distal end 108 of device 101, as that end is the end farthest from the user's mouth during use. When a user inhales the aerosol generated by the device, the aerosol flows in a direction toward the proximal end of device 101. The terms proximal and distal, when applied to features of device 101, are described by reference to the relative positions of such features with respect to one another in the proximal-distal direction along axis 102.

[0155] The heating assembly 201 may include various components for heating the aerosol-generating material of the article 110 by an induction heating process. Induction heating is a process of heating an electrically conductive heating element (such as a susceptor) by electromagnetic induction. The induction heating assembly may include an induction element, e.g., one or more inductor coils, and a device for passing a varying current, such as an alternating current, through the induction element. The varying current in the induction element results in a varying magnetic field. The varying magnetic field penetrates a susceptor (heating element) appropriately positioned with respect to the induction element and generates eddy currents within the susceptor. The susceptor has an electrical resistance to eddy currents, and therefore, the flow of eddy currents against this resistance causes the susceptor to heat by Joule heating. If the susceptor includes a ferromagnetic material such as iron, nickel, or cobalt, heat can also be generated by magnetic hysteresis losses in the susceptor, in other words, by the varying orientation of magnetic dipoles in the magnetic material as a result of their alignment with the varying magnetic field. In induction heating, heat is generated inside the susceptor, allowing for rapid heating, as compared to heating by conduction, for example, and further, there is no need for any physical contact between the induction element and the susceptor, allowing for increased flexibility in design and application.

[0156] Apparatus 200 includes a heating chamber 211 configured and dimensioned to receive an article 110 to be heated. Heating chamber 211 defines a heating region 215. In this example, article 110 is generally cylindrical, and heating chamber 211 is correspondingly generally cylindrical in shape. However, other shapes are possible. Heating chamber 211 is formed by a container 212. Container 212 includes end walls 213 and a peripheral wall 214. End wall 213 serves as a base for container 212. In embodiments, container 212 is a unitary component. In other embodiments, the container comprises two or more components.

[0157] The heating chamber 211 is defined by the inner surface of a container 212. The container 212 acts as a support member. The container 212 comprises a generally tubular member. The container 212 extends along, around, and substantially coaxially with the longitudinal axis 102 of the device 101. However, other shapes are possible. The container 212 (and thus the heating region 215) is open at a proximal end thereof such that an item 110 inserted into the opening 104 of the device 101 can be received by the heating chamber 211 through the opening 104. The container 212 is closed at a distal end thereof by an end wall 213. The container 212 comprises an air conduit 218 (indicated by arrow 219) that forms part of an air passage. The air conduit 218 extends through the base 213. During use, the distal end of article 110 may be positioned proximate to or in engagement with the end of heating chamber 211. Air may enter heating chamber 211 through one or more conduits 218 that form part of the airway and flow through article 110 towards the proximal end of device 101.

[0158] The container 212 is formed without a material that can be heated by the penetration of a fluctuating magnetic field. The container 212 may be formed from an insulating material. For example, the container 212 may be formed from a plastic, such as polyetheretherketone (PEEK). Other suitable materials are possible. The container 212 may be formed from a material that ensures that the heating assembly 201 remains rigid / solid when the assembly is operated. Using a non-metallic material for the container 212 can help regulate heating of other components of the device 101. Using a non-metallic material for the container can assist in induction heating by minimizing any interference with the magnetic field. The container 212 may be formed from a rigid material to help support other components.

[0159] Other configurations of vessel 212 are possible. For example, in an embodiment, end wall 213 is defined by a portion of heating assembly 201. In an embodiment, vessel 212 comprises a material that is heatable by the penetration of a varying magnetic field.

[0160] 2, heating assembly 201 includes heating element 220. Heating element 220 is configured to heat heating region 215. Heating region 215 is defined in heating chamber 211. In an embodiment, heating chamber 211 defines a portion of heating region 215 or the extent of heating region 215.

[0161] Heating region 215 is the region or volume in which an article can be received for heating by device 101. Heating region 215 is therefore at least partially defined by heating assembly 201. Heating region 215 is the space adjacent to heating element 220. In embodiments comprising heating chamber 211, such as shown in FIG. 2, heating chamber 211 defines heating region 215. That is, heating chamber defines heating region 215. In embodiments, heating element 220 defines the heating region.

[0162] As illustrated in FIG. 2A , in various embodiments, the apparatus 200 does not include a heating chamber. The heating element protrudes from the housing 103. In such embodiments, the container and heating chamber may be omitted, and the heating element may be surrounded by free space. The heating element, or at least a portion of the heating element, is not surrounded by a surrounding element, such as a peripheral wall of the device, when an item is placed on the heating element. The term “heating region” is understood to include the space surrounding the heating element. That is, the heating region may not be defined or compartmentalized by components of the device 101.

[0163] In embodiments, the heating element forms part of a heating configuration. The heating configuration comprises a heating element protruding from a base. In other embodiments, the heating element is in the article and the heating configuration comprises a protruding member protruding from the base. The heating element or protruding member in embodiments comprises a magnetic field generator configured to generate a varying magnetic field, including an inductor coil. The heating configuration in embodiments is an induction heating configuration. The heating configuration in embodiments is a resistive heating configuration.

[0164] The heating element 220 is heatable to heat the heating region 215. The heating element 220 is an induction heating element. That is, the heating element 220 comprises a susceptor that is heatable by the penetration of a varying magnetic field. The susceptor comprises a conductive material suitable for heating by electromagnetic induction. For example, the susceptor may be formed from carbon steel. It will be understood that other suitable materials may be used, for example, ferromagnetic materials such as iron, nickel, or cobalt.

[0165] The heating assembly 201 includes a magnetic field generator 240. The magnetic field generator 240 is configured to generate one or more varying magnetic fields that penetrate the susceptor to cause heating in the susceptor. The magnetic field generator 240 includes an inductor coil arrangement 241. The inductor coil arrangement 241 includes an inductor coil 242 that serves as an inductor element. The inductor coil 242 is a helical coil, although other arrangements are contemplated. In an embodiment, the inductor coil arrangement 241 includes two or more inductor coils 242. The two or more inductor coils in an embodiment may be disposed adjacent to one another and coaxially aligned along an axis.

[0166] In some examples, during use, the inductor coil 242 is configured to heat the susceptor to a temperature between about 200°C and about 350°C, such as between about 240°C and about 300°C, or between about 250°C and about 280°C.

[0167] The heating element 220 extends in the heating area 215. The heating element 220, acting as a protruding element, protrudes in the heating area 215. The heating element 220 stands up from the base 213.

[0168] In an embodiment, the base is formed by a feature other than the end wall 213 of the container.

[0169] Heating element 220 is spaced from peripheral wall 214. Heating assembly 201 is configured such that when article 110 is received by heating chamber 211, heating portion 221 of heating element 220 extends to the distal end of article 110. Heating element 220 is positioned within article 110 during use. Heating element 220 is configured to heat the aerosol-generating material of article 110 from the inside, and for this reason is referred to as an internal heating element.

[0170] The heating element 220 extends (axially) from the distal end of the heating chamber 211 into the heating chamber 211 along the longitudinal axis 102 of the device. In embodiments, the heating element 220 extends into the heating chamber 211 at a distance from the axis 102. The heating element 220 may be off-axis or non-parallel to the axis 102. While one heating element 220 is shown, it will be understood that in embodiments, the heating assembly 201 comprises multiple heating elements 220. Such heating elements in embodiments are spaced apart from one another but parallel to one another.

[0171] The inductor coil 241 is disposed outside the vessel 212. The inductor coil 241 surrounds the heating region 215. The helical inductor coil 241 extends around at least a portion of the heating element 220, which acts as a susceptor. The helical inductor coil 241 is configured to generate a varying magnetic field that penetrates the heating element 220. The helical inductor coil 241 is disposed coaxially with the heating chamber 211 and the longitudinal axis 101.

[0172] Inductor coil 241 is a helical coil comprising a conductive material, such as copper. The coil is formed from wire, such as Litz wire, that is helically wound around a support member. The support member may be formed by container 212 or by another component. In embodiments, the support member is omitted. The support member is tubular. Coil 241 defines a generally tubular shape. Inductor coil 241 has a generally circular outline. In other embodiments, inductor coil 241 may have a different shape, such as a generally square, rectangular, or oval. The coil width may increase or decrease along the length of the coil.

[0173] Other types of inductor coils, such as flat spiral coils, may also be used. Using a spiral coil allows for defining an elongated inductor region for receiving a susceptor therein, providing that a long, narrow length of susceptor can be received in the elongated inductor region. The length of the susceptor subjected to the varying magnetic field can be maximized. Providing a helical coil configuration in the encapsulated inductor region can assist in the flux concentration of the magnetic field.

[0174] Litz wire comprises multiple individual wires that are individually insulated and twisted together to form a single wire. Litz wire is designed to reduce skin effect losses in the conductor. Other wire types, such as solid, may be used. The configuration of the helical inductor coil may vary along the axial length of the helical inductor coil. For example, the or each inductor coil may have substantially the same or different values ​​of inductance, axial length, radius, pitch, number of turns, etc.

[0175] The heating element 220 protrudes in the heating region 215 and is received by the item 110. FIG. 2 shows the item 110 received in the device 101. The item 110 is sized to be received by the container 212. The outer dimensions of the item 110 perpendicular to the longitudinal axis of the item 110 substantially correspond to the inner dimensions of the chamber 211 perpendicular to the longitudinal axis 102 of the device 101 to allow insertion of the item 110 into the container 212. In an embodiment, a gap 216 is defined between the exterior 111 of the item 110 and the interior 217 of the container 212. The gap 216 can serve as an air passageway along at least a portion of the axial length of the chamber 211. The insertion end 112 of the item 110 is positioned to reside adjacent to the base of the container 212.

[0176] 3 shows item 110 partially inserted into device 101. As shown, item 110 is spaced apart from heating element 220 in heating region 215.

[0177] Heating element 220 extends from the distal end of container 212 in heating region 215. Heating element 220 upstands from end wall 213. Heating element 220 comprises heating member 224. Heating member 224 is elongated. Heating element 220 comprises a base end 221 and an opposing free end 222. Heating member 224 is a pin. Other shapes are envisioned, for example, heating member 221 in an embodiment is a blade.

[0178] The heating element 220 includes a peripheral surface 223. The peripheral surface 223 extends around the heating element 220. The peripheral surface 223 extends between the base end 221 and the free end 222. The peripheral surface 223 forms the outer surface of the heating element.

[0179] Heating element 224 is a tapered element. Peripheral surface 223 is tapered. Heating element 224 converges from base end 221 to free end 222. Heating element 220 is conical, although other shapes are envisioned. As shown in FIG. 3, heating peripheral surface 223 is tapered along the entire length of heating peripheral surface 223. In embodiments, for example, as described below, a portion of peripheral surface 223 does not include a taper.

[0180] The peripheral surface 223 defines the longitudinal sides of the heating element 224. The peripheral surface 223 forms the sidewall or lateral surface of the heating element 220. The peripheral surface 223 is elongated, and a substantial portion of the peripheral surface 223 is tapered in the longitudinal direction of the heating element 220. The peripheral surface 223 has a length at the longitudinal axis between 10 mm and 30 mm. Optionally, the length of the peripheral surface 223 is between 15 mm and 25 mm.

[0181] The tapered member can help provide gradual heating of the heating region. It will be appreciated that the rate of heating of the susceptor and the area of ​​the susceptor material exposed to the aerosol-generating material may taper in the longitudinal direction, thus aiding in the gradual generation of vapor. Heat transfer across the aerosol-generating material of article 110 may be relatively faster at the distal end and relatively slower toward the proximal end.

[0182] Circumferential surface 223 extends at an angle of up to 30 degrees relative to the longitudinal axis of the heating element. Optionally, peripheral surface 223 extends at an angle of up to 15 degrees relative to the longitudinal axis of the heating element. Optionally, peripheral surface 223 extends at an angle of up to 15 degrees relative to the longitudinal axis of the heating element. Optionally, peripheral surface 223 extends at an angle of up to 5 degrees relative to the longitudinal axis of the heating element. In embodiments, peripheral surface 223 extends at an angle greater than 5 degrees relative to the longitudinal axis of the heating element to form a taper. Optionally, peripheral surface 223 extends at an angle greater than 10 degrees relative to the longitudinal axis of the heating element to form a taper.

[0183] The article 110 includes a hole 113. The hole 113 is pre-formed in the article 110. In the embodiment, the hole 113 is formed by a tapered interior surface 114. The hole 113 in the embodiment extends partially along the longitudinal axis of the article 110. The hole 113 includes an inner surface 114. The hole 113 is open at an insertion end 115. The hole 113 has a closed end 115. The hole 113 tapers from the open end toward the closed end 115. The heating element 220 is sized to be received in the hole 113. The heating element 220 and the hole 113 are complimentary sized to form a contact fit. The inner surface 114 of the hole is configured to form an intimate contact with the heating element 224 to maximize heat transfer between the heating element 220 and the article 110. In embodiments with different configurations of the heating element 220, the holes 113 are provided as complimentary cavities. The holes 113 are tapered.

[0184] By providing a tapered configuration, the heating element 220 can be used to aid in the positioning of the article 110. In a coaxial configuration with a corresponding article aperture 113, the configuration can self-center, thus aiding in alignment during insertion. Thus, contact between the heating element 220 and the article 110 can be improved, and thus heating consistency along the length of the heating element can be maximized. By providing a tapered profile, sturdiness of the heating element 220 can be aided.

[0185] In this embodiment, the free end 222 of the heating element 220 extends to a tip. The tip is formed by a peripheral surface. In this embodiment, the free end 222 is not sharp. The heating element 220 is conical. The shape of the heating element 220 may vary. In this embodiment, the heating element 220, or at least the portion of the heating element formed by the peripheral wall 223, has another pyramidal shape. In this embodiment, the heating element 220 is frustum-shaped. FIG. 5 shows an example of a device 101 having a frustum-shaped heating element 230. The configuration of the device 101 is generally the same as that described above, and therefore, a detailed description will be omitted, and the features of the device described above may be applied to the configuration described below. As shown in FIG. 5, the heating element 230 has a truncated cone portion 231. The peripheral wall 232 is tapered. An end face 233 is provided at the free end of the heating element 230. End surface 233 extends perpendicular to the longitudinal axis of heating element 230. In such an embodiment, the aperture (not shown in FIG. 5) of article 110 comprises a complimentary shape.

[0186] Referring to FIG. 4 , in an embodiment, the hole 113 in the article 110 is omitted. The configuration of the device 101 is generally the same as that described above, and therefore a detailed description will be omitted, and the device features described above may be applied to the configuration described below. In an embodiment, the outer dimensions of the heating element 220 are larger than the outer dimensions of the hole. In such a configuration, the heating element is configured to deform and / or expand the article 110 and be inserted into the article 110. To enable this, the inner heating element 220 is configured to penetrate the article 110 inserted into the device 101. In such an embodiment, the free end 222 of the heating element 220 comprises a sharp edge or tip. In an embodiment, the free end 222 of the heating element 220 comprises a sharp edge, tip, or other guiding feature to assist in positioning the heating element 220 in the article 110. In an embodiment in which the peripheral surface does not form a tip, for example, forming a truncated shape, the heating element 220 may comprise a tip feature.

[0187] As shown in FIG. 3, the tapered peripheral surface extends between opposing ends of the heating element 220. In embodiments, at least 90 percent of the heating elements include a tapered peripheral surface. As illustrated in FIG. 6, in some embodiments, a portion of the heating element 240 does not have a taper. The configuration of the device 101 is generally the same as that described above, and therefore a detailed description will be omitted, and the features of the devices described above may be applied to the configurations described below. In embodiments, at least one-third of the heating elements include a tapered peripheral surface, and optionally, at least one-half of the heating elements include a tapered peripheral surface.

[0188] The heating element 240 comprises a first portion 241 and a second portion 242. The first portion 241 is toward the proximal end, and the second portion 242 is toward the distal end. The second portion 242 is between the base 213 and the first portion 241. The first portion 241 comprises a tapered peripheral surface 243. The second portion 242 is linear. The peripheral surface 244 of the second portion does not include a taper. The second portion is cylindrical. The shape of the second portion 242 is complementary to the contoured shape of the first portion 241. As indicated above, the first portion 241 forms the main portion of the heating element 240.

[0189] 7, in some embodiments, the tapered heating element 250 has a varying taper along the length of the heating element 250. The configuration of the device 101 is generally the same as that described above, and therefore a detailed description will be omitted, and the features of the device described above may be applied to the configurations described below.

[0190] Heating element 250 comprises a first tapered portion 251 and a second tapered portion 252. First tapered portion 251 is toward the proximal end, and second tapered portion 252 is toward the distal end. Second tapered portion 252 is between base 213 and first tapered portion 241. First tapered portion 251 comprises a first tapered peripheral surface 253. Second tapered portion 252 comprises a tapered peripheral surface 254. The shape of second tapered portion 252 is complimentary to the contour shape of first tapered portion 251. As indicated above, first tapered portion 251 forms the main portion of heating element 250.

[0191] The taper angle of first tapered portion 251 is greater than the taper angle of second tapered portion 252. Second tapered peripheral surface 254 converges from base 213 toward first tapered portion 251. First tapered peripheral surface 253 converges from second tapered peripheral surface 254 toward free end 116. Second tapered peripheral surface 254 extends from first tapered peripheral surface 253.

[0192] In some embodiments, the heating element 260 comprises a neck. One such embodiment is shown in Figure 8. The configuration of the device 101 is generally the same as that described above, and therefore a detailed description will be omitted, and the features of the device described above may be applied to the configuration described below.

[0193] Heating element 260 comprises a first portion 261 and a second portion 262. First portion 261 is toward the proximal end and second portion 262 is toward the distal end. Second portion 262 is between base 213 and first portion 261. First portion 261 comprises a tapered peripheral surface 263.

[0194] First portion 261 has a shape corresponding to the heating element shown in Figures 2-4. It will be understood that the shape of first portion 261 may vary. In embodiments, the shape of first portion 261 may have any of the shapes described above with reference to Figures 5-7, for example. In the configurations described above, heating element 260 includes a tapered portion, but it will be understood that in other embodiments, heating elements that include a neck do not include a tapered portion. For example, first portion 262 in embodiments is cylindrical.

[0195] The second portion 262 forms a neck 270. The first portion 261 acts as a heating element. The neck 270 is inset from the first portion 261. In embodiments, the neck 270 has a maximum dimension perpendicular to the longitudinal axis of the heating element 260 that is smaller than the maximum dimension of the first portion 261 perpendicular to the longitudinal axis of the heating element 260. The neck 270 has a diameter that is smaller than the diameter of the first portion 261. The neck 270 extends to a junction with the first portion 261. Although described herein as a second portion, it will be understood that the neck 270 may be a third portion of a heating element comprising a first portion and a second portion.

[0196] Neck 270 defines a step at the junction with first portion 261. Neck 270 has a small axial extent. In an embodiment, neck 270 has a height of less than 2 mm, optionally less than 1 mm.

[0197] Neck 270 rises from base 213. As described herein, neck 270 is part of heating element 260. Neck 260 comprises a heating material that is heatable by the penetration of a fluctuating magnetic field. In such embodiments, neck 270 may be integrally formed with and / or form a unitary component of first portion 261. In other embodiments, neck 270 does not comprise a heating material that is heatable by the penetration of a fluctuating magnetic field. In such embodiments, neck 270 may be integrally formed with and / or form a unitary component of vessel 212.

[0198] The neck 270 defines a recess 271 in the base 213. The recess 271 is defined between the base 213 and the lower end 265 of the first portion 261. The recess 271 extends in the circumferential direction.

[0199] An airflow arrangement 280 is provided. The airflow arrangement 280 forms a portion of an air path through the heating region 215. The airflow arrangement 280 comprises one or more air conduits that form a portion of the air path along which air can enter the heating chamber 211. The air flows through the items in the heating chamber 211 toward the proximal end of the device 101. The airflow arrangement 280 comprises an air conduit 218 in the base 213. Air flows through the base 213 as indicated by arrow 219. The air conduit 218 is in communication with the heating chamber 211 outside the container 212. An air outlet is formed in the base 213. The air outlet is exposed in the recess 271. The air outlet comprises an array of apertures. The configuration and arrangement of the airflow arrangement 280, for example, the array of apertures, may vary in embodiments. The array of apertures in the embodiments is one or more apertures.

[0200] In this embodiment, the air outlet for air conduit 218 is at base 213. In an embodiment, the air outlet for air conduit 218 is at neck 270. By providing an air outlet in recess 271 for fluid communication with heated region 215, first portion 261 acts as a barrier that helps ensure that the air outlet remains clear. Thus, for example, by providing a divergent airflow volume, it can help provide an improved air flow path through heated region 215.

[0201] Figure 2A shows another embodiment, which generally corresponds to that of Figure 2, except that the heating element 220 protrudes from the housing 103. In such an embodiment, the device does not include a container, i.e., the heating region 215 is not surrounded or defined by any other components.

[0202] The housing 103 defines a base 213a from which the heating element 220 projects. The heating element 220 rises from the base 213a. The heating element 220 is configured to receive at least a portion of the item 110. The heating element 220 is exposed. The term "exposed" will be understood to mean that a portion of the feature is not enclosed by another feature such that the feature extends beyond the exterior extent. The heating element 220 is not received in a heating chamber. In the device of FIG. 2A, the heating element extends beyond the exterior extent of the device's housing. In the embodiment of FIG. 2A, the entire heating element 220 projecting from the base is unenclosed. In embodiments, a substantial portion of the heating element 220 is exposed. In such embodiments, only a small portion of the heating element extends beyond the exterior extent of the device's housing. Optionally, at least 80%, optionally 60%, and optionally 50% of the heating element 220 is exposed.

[0203] In an embodiment, the heating arrangement is an inductive heating arrangement. An induction coil may extend through the heating element 220. In an embodiment, the heating arrangement is a resistive heating arrangement.

[0204] Figure 2A also shows an article 110 for use with any of the embodiments described herein. The article 110 in Figure 2A is generally the same as the article 110 in Figure 2. The article 110 in Figure 2A may be used with the aerosol generating device 101 in Figure 2A. The article 110 includes a hole 113. The hole 113 may be omitted.

[0205] 2B, the heating element 220 is exposed, with a portion of the heating element being surrounded by a raised rim 230 that rises from the base 213a. The heating element 220 partially protrudes from the housing 103. That is, a portion of the heating element 220 protrudes from the housing 103, and a portion of the heating element 220 is surrounded by other components of the device. For example, the housing 103 may include a raised rim 230 that extends around the heating element 220 and is spaced apart from the heating element 220. The raised rim 230 may extend around the base end 221 of the heating element 220 and be spaced apart from the base end 221 of the heating element 220. The raised rim 230 extends from the base 213a. The raised rim 230 extends circumferentially. The raised rim 230 may include a peripheral portion. The raised rim 230 of the base 213a forms a base recess 212a. The base recess 212a accommodates the base end 221 of the heating element 220. The base recess 212a may be configured to receive the end of the item 110. The majority of the heating element 220 is not surrounded or defined by any other components. The heating region 215 is not surrounded or defined by any other components.

[0206] 2A and 2B show a heating element 220. The heating element 220 is generally similar to the heating element of FIG. 2. The heating element 220 includes a heating element 224. The heating element 220 includes a peripheral surface 223. The peripheral surface 223 extends around the heating element 220. The peripheral surface 223 extends between a base end 221 and a free end 222. The peripheral surface 223 forms the outer surface of the heating element 220. The heating element 224 is a tapered member. The peripheral surface 223 is tapered. The heating element 224 converges in a direction from the base end 221 to the free end 222. The heating element 220 is conical in shape, although other shapes are contemplated. As shown, the heating peripheral surface 223 is tapered along the entire length of the heating peripheral surface 223.

[0207] It will be understood that the exposed heating element described above with reference to FIGS. 2A and 2B in the embodiment may be provided in combination with any other embodiment described above. For example, in an embodiment, the exposed heating element includes a neck as described above with reference to FIG. 8. The configuration of device 101 is generally the same as that described above, and therefore a detailed description will be omitted. In the configurations described above, the heating element is formed from a material that is heatable by the penetration of a fluctuating magnetic field. In an embodiment, the heating element is solid. In other embodiments, the heating element is hollow. In an embodiment, the heating element is at least partially hollow. In an embodiment, one or more portions of the heating element are hollow. In an embodiment, the heating element includes a support and a heating element. The heating element is on the support. The heating element may be a layer, such as a coating, on the support. In an embodiment, the heating element and / or the support, if present, define a cavity.

[0208] In the embodiments described above, the heating element is an induction heating element. In embodiments, other types of heating elements, such as resistive heating, are used. The device configuration is generally described above, and therefore will not be described in detail. In such configurations, the heating assembly 201 comprises a resistive heat generator including components for heating the heating element by a resistive heating process. In this case, an electric current is applied directly to the resistive heating element, and the resulting current flow in the heating element causes the heating element to heat by Joule heating. The resistive heating element comprises a resistive material configured to generate heat when a suitable electric current passes through the resistive heating element, and the heating assembly comprises electrical contacts for supplying the electric current to the resistive material.

[0209] In an embodiment, the heating element forms a resistive heating component itself, which in an embodiment transfers heat to the heating element by, for example, conduction.

[0210] The above-described embodiments should be understood as illustrative examples of the present invention. Further embodiments of the present invention are contemplated. It should be understood that any feature described with respect to any one embodiment may be used alone or in combination with other features described, and may also be used in combination with one or more features of any other embodiment, or in any combination of any other embodiment. Moreover, equivalents and modifications not described above may be employed without departing from the scope of the present invention, as defined in the appended claims.

Claims

1. 1. An aerosol-generating device for generating an aerosol from an aerosol-generating material, comprising: a container defining a heating region configured to receive at least a portion of an article comprising an aerosol-forming material; a heating element projecting into the heating area; Equipped with the heating element comprises a neck; the container includes a base, and the neck defines a recess in the base; Aerosol generating devices.

2. 2. The aerosol generation device of claim 1, wherein the heating element comprises a first portion and a second portion, the second portion extending between the container and the first portion, and the second portion forming the neck.

3. The aerosol generating device according to claim 2 , wherein the first portion forms a step at a junction with the second portion.

4. The aerosol generating device according to claim 2 , wherein the first portion comprises a taper.

5. 2. The aerosol generating device of claim 1, further comprising an air outlet in fluid communication with the heating region for supplying air to the heating region, the air outlet being located in the recess.

6. The aerosol generating device according to claim 5 , wherein the air outlet is located in the base.

7. 2. The aerosol generating device according to claim 1, wherein the neck does not contain a heating material that can be heated by the penetration of a fluctuating magnetic field.

8. An aerosol delivery system comprising the aerosol generating device according to any one of claims 1 to 7 and an article comprising an aerosol-generating material.

9. an article comprising an aerosol-forming material; an aerosol-generating device for heating an aerosol-generating material, the aerosol-generating device comprising a container defining a heating region configured to receive at least a portion of the article; a heating element projecting into the heating area; Equipped with the heating element comprises a neck; the container includes a base, and the neck defines a recess in the base; Aerosol generation systems.

10. 10. The aerosol delivery system of claim 9, wherein the article comprises a preformed aperture configured to receive the heating element.

11. 11. The aerosol delivery system of claim 9 or 10, wherein the item is a consumable item.

12. 1. An aerosol-generating device for generating an aerosol from an aerosol-generating material, comprising: a heating element configured to be received in at least a portion of the article comprising the aerosol-forming material; a base from which the heating element projects; Equipped with the heating element comprises a neck; a housing defining the base and the neck defining a recess in the base; Aerosol generating devices.

13. 13. The aerosol generating device according to claim 12, comprising a heating region around the heating element configured to at least partially receive the article comprising the aerosol-generating material.

14. 13. The aerosol generating device according to claim 12, comprising a housing, the housing defining the base.

15. The aerosol generating device according to claim 12, wherein at least a portion of the heating element is exposed.

16. 13. The aerosol generation device of claim 12, wherein the base comprises a raised rim extending around and spaced from the base end of the heating element.

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