Aerosol supply device

Abstract

The present application discloses an aerosol supply device including a heater component. In one device, the heater component (132) includes a first portion (202) having a first outer cross-section and a second portion (204) having a second outer cross-section. The device further includes a support (136) including a container (210) engaged with the second portion of the heater component to hold the heater component. The container has an inner cross-section corresponding to the second outer cross-section of the heater component, thereby preventing the heater component from rotating relative to the support. Various configurations of the support are described.

Description

Technical Field

[0001] The invention relates to an aerosol supply device, a method for manufacturing a heater component of an aerosol supply device, a heater component, a support for a heater component and an end member. Background Art

[0002] Smoking articles such as cigarettes, cigars, etc. burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by producing products that release compounds without burning. Examples of such products are heating devices that release compounds by heating but not burning materials. The material may be, for example, tobacco or other non-tobacco products, which may or may not contain nicotine. Summary of the invention

[0003] According to a first aspect of the present disclosure, an aerosol supply device is provided, the aerosol supply device comprising:

[0004] Heater components, including:

[0005] a first portion having a first outer cross-section; and

[0006] a second portion having a second outer cross-section; and

[0007] Support parts, including:

[0008] A container is engaged with the second portion of the heater component to retain the heater component, wherein the container has an inner cross-section corresponding to the second outer cross-section of the heater component, thereby preventing the heater component from rotating relative to the support.

[0009] According to a second aspect of the present disclosure, there is provided a heater component for an aerosol supply device, the heater component comprising:

[0010] a first portion having a first outer cross-section having a circular shape; and

[0011] A second portion having a second outer cross-section having a non-circular shape.

[0012] According to a third aspect of the present disclosure, there is provided a support for a heater component of an aerosol supply device, wherein the support defines a receptacle for receiving the heater component, wherein the receptacle has an inner cross-section of a non-circular shape.

[0013] According to a fourth aspect of the present disclosure, there is provided an aerosol supply device, comprising the heater component according to the second aspect and the support member according to the third aspect, the support member being engaged with the heater component.

[0014] According to a fifth aspect of the present disclosure, there is provided a method for manufacturing a heater component for an aerosol supply device, the method comprising:

[0015] providing a cylindrical heater component having an outer cross-section having a circular shape; and

[0016] The heater component is deformed such that an outer cross-section of a portion of the heater component is non-circular.

[0017] According to a sixth aspect of the present disclosure, there is provided a heater component for an aerosol supply device, wherein a portion of the heater component is keyed to prevent the heater component from rotating within a container of the aerosol supply device.

[0018] According to a seventh aspect of the present disclosure, there is provided a support for a heater component of an aerosol supply device, wherein the support comprises a container for receiving the heater component, wherein the container is keyed to prevent the heater component from rotating within the container.

[0019] According to an eighth aspect of the present disclosure, there is provided an aerosol supply device, comprising:

[0020] Heater components;

[0021] a support configured to engage the heater component to retain the heater component; and

[0022] an end member, wherein the end member defines a container and the support member is at least partially received within the container;

[0023] The support member includes a first locking feature that engages with a second locking feature of the end member, thereby preventing the support member from rotating relative to the end member.

[0024] According to a ninth aspect of the present disclosure, there is provided a support for a heater component of an aerosol supply device, wherein:

[0025] The support member is configured to engage the heater component to retain the heater component;

[0026] The support is configured to be received by a receptacle of an end member of the device; and

[0027] The support includes a first locking feature configured to engage a second locking feature of the end member.

[0028] According to a tenth aspect of the present disclosure, there is provided an end member for an aerosol supply device, wherein:

[0029] The end member defines a receptacle configured to receive a support for a heater component of the device; and

[0030] The end member includes a locking feature configured to engage a corresponding locking feature of the support.

[0031] According to an eleventh aspect of the present disclosure, there is provided a support for a heater component of an aerosol supply device, wherein a portion of the support is keyed to prevent the support from rotating within an end member of the device.

[0032] According to a twelfth aspect of the present disclosure, there is provided an end member for an aerosol supply device, wherein the end member comprises a container for receiving a support for a heater component of the device, wherein the end member is keyed to prevent the support from rotating within the container.

[0033] Further features and advantages of the present invention will become apparent from the following description of preferred embodiments of the invention, which is given by way of example only, with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A front view showing an example of an aerosol supply device;

[0035] Figure 2 Shows Figure 1 A front view of an aerosol supply device with the outer cover removed;

[0036] Figure 3 Shows Figure 1 A cross-sectional view of an aerosol supply device;

[0037] Figure 4 Shows Figure 2 An exploded view of the aerosol supply device;

[0038] Figure 5A shows a cross-sectional view of a heating assembly within an aerosol supply device;

[0039] Figure 5B Shows Figure 5A a close-up view of a portion of a heating assembly;

[0040] Figure 6 shows a perspective view of an example susceptor for use within an aerosol supply device;

[0041] Figure 7 showing a perspective view of a susceptor engaged with a support;

[0042] Fig. 8A shows a perspective view of an example support member;

[0043] Figure 8B Shows Fig. 8A A top view of a support member;

[0044] Fig.9A A diagrammatic representation of a cross section of a portion of an example susceptor is shown;

[0045] Fig. 9B Shows Fig.9A a diagrammatic representation of a cross section of another portion of an example susceptor;

[0046] Fig. 9C a diagrammatic representation of a cross section of a container showing an example support;

[0047] Fig. 10A A diagrammatic representation of a cross section of a portion of another example susceptor is shown;

[0048] Fig. 10B a diagrammatic representation of a cross section of a container showing another example support;

[0049] Fig.11 A diagrammatic representation of another example receptor is shown;

[0050] Fig.12 Shows Fig.11 A diagrammatic representation of a cross section of a portion of a receptor;

[0051] Fig.13 A top view of another example support is shown.

[0052] Fig.14A Shown with Fig. 8A A perspective view of an end member engaged with a support member;

[0053] Fig.15 Shows Fig. 8A a bottom view of the support member; and

[0054] Fig.16 Shows Fig.14A Top view of the end member. DETAILED DESCRIPTION

[0055] As used herein, the term "aerosol generating material" includes materials that provide volatile components when heated, usually in the form of an aerosol. Aerosol generating materials include any tobacco-containing material, and may, for example, include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. Aerosol generating materials may also include other non-tobacco products, which may or may not contain nicotine depending on the product. Aerosol generating materials may, for example, be in the form of solids, liquids, gels, waxes, or the like. Aerosol generating materials may, for example, also be combinations or blends of materials. Aerosol generating materials may also be referred to as "smokable materials".

[0056] Devices are known which heat an aerosol generating material to volatilize at least one component of the aerosol generating material, typically forming an aerosol which can be inhaled without burning or combusting the aerosol generating material. Such devices are sometimes described as "aerosol generating devices", "aerosol supply devices", "hot combustion devices", "tobacco heating product devices" or "tobacco heating devices" or similar devices. Similarly, there are also so-called electronic cigarette devices which typically vaporize an aerosol generating material in liquid form which may or may not contain nicotine. The aerosol generating material may be in the form of or provided as part of a rod, cartridge or cartridge etc. which can be inserted into the device. The heater for heating and volatilizing the aerosol generating material may be provided as a "permanent" part of the device.

[0057] The aerosol supply device may receive an article comprising an aerosol generating material for heating. A "article" in this context is a component comprising or containing the aerosol generating material that is heated in use to volatilize the aerosol generating material, and optionally other components in use. A user may insert the article into the aerosol supply device before the article is heated to generate an aerosol, which the user then inhales. The article may, for example, have a predetermined or specific size that is configured to be placed in a heating chamber of the device, the size of the heating chamber being determined to receive the article.

[0058] A first aspect of the present disclosure defines an aerosol supply device having a heater component. The heater component can receive an aerosol generating material. For example, the heater component can be substantially tubular (i.e., hollow) and can receive an aerosol generating material therein. In one example, the aerosol generating material is tubular or cylindrical in nature and can be referred to as a "tobacco stem", for example, the aerosol generating material can include tobacco formed into a specific shape, which is then coated or wrapped in one or more other materials (e.g., paper or foil).

[0059] The heater component may be heated by penetrating the heater component with a varying magnetic field generated by at least one inductor coil. The heated heater component in turn heats the aerosol generating material located within the heater component. Thus, the heater component may be, for example, a susceptor.

[0060] In order to ensure that the aerosol generating material is heated most effectively, the inner surface of the heater component should be arranged in close proximity to or in contact with the outer surface of the article. However, it has been found that after heating, the aerosol can condense and cause the article to adhere to the inside of the heater component. The user can rotate the article to break the adhesion and allow the article to be removed from the heater component, but this may cause the heater component to rotate within the device. In some devices, temperature sensors are fixed to the heater component, and if the heater component is rotated, these temperature sensors may become loose or the connection may become damaged.

[0061] To limit rotation of the heater component, at least a portion of the heater component may be "keyed," i.e., at least a portion of the heater component has an engagement feature and / or cross-sectional shape that interlocks with a support structure that holds the heater component in place. The support has a corresponding engagement feature and / or cross-sectional shape. This interlocking stops, or makes more difficult, rotation of the heater component relative to the support.

[0062] In certain aspects of the present disclosure, the heater component includes a first portion having a first outer cross-section and a second portion having a second outer cross-section. The support member includes a container that engages with the second portion of the heater component to hold the heater component. To prevent rotation, the container has an inner cross-section corresponding to the second outer cross-section of the heater component. Therefore, the second outer cross-section has a shape corresponding to the inner cross-section of the container. Therefore, the second outer cross-section is keyed to the inner cross-section.

[0063] The second outer cross-section may be different from the first outer cross-section.

[0064] In a specific example, the first outer cross-section is circular in shape and the second outer cross-section is non-circular in shape. The first portion of the heater component has a first outer cross-section that is circular so that it corresponds to the cylindrical shape of an article inserted into the heater component. The non-circular shape corresponds to the inner cross-section of the container, thereby making it more difficult to rotate the heater component.

[0065] In a specific example, the second portion is arranged at one end of the heater component. For example, the end may be the distal end of the heater component. The first portion of the heater component may extend from the other end (e.g., the proximal end) of the heater component to the second portion. The first portion may be adjacent to the second portion.

[0066] For example, the heater component may be received within the container during assembly of the device. The heater component may define a longitudinal axis, and the first and second outer cross-sections may be taken in a plane perpendicular to the longitudinal axis. Rotation in an azimuthal or circumferential direction about the longitudinal axis of the heater component may be prevented. The container may define an axis such that the support is configured to hold the heater component parallel to the axis.

[0067] The inner cross-section of the container may be of substantially the same size as the second outer cross-section of the heater component to provide a close fit between the container and the heater component to further restrict relative movement.

[0068] The first outer cross-section and the second outer cross-section may be coaxial. For example, the geometric centers of the first and second outer cross-sections are aligned along an axis (eg, a longitudinal axis of the heater component).

[0069] The first portion may have a first inner cross-section that is circular in shape. In some examples, the second portion also has a second inner cross-section that is circular in shape, while the second outer cross-section is non-circular. This may be desirable to ensure that the article is not blocked by the non-circular portion within the heater component.

[0070] The second outer cross-section may be at least partially defined by one or more engagement features formed on the outer surface of the second portion. Similarly, the inner cross-section may be at least partially defined by one or more corresponding engagement features formed on the inner surface of the container.

[0071] These engagement features can be at least one of, for example, a ridge, a protrusion, a notch, a recess, a depression, and a channel. In a particular example, the engagement feature of the heater component is a notch formed on the outer surface of the second portion, and the corresponding engagement feature of the support member is a protrusion. These protrusions are configured to be received in these notches, thereby limiting the rotation of the heater component. In another example, the engagement feature of the heater component is a notch / channel formed on the outer surface of the second portion, and the corresponding engagement feature of the support member is a protrusion / ridge. In some examples, the heater component and the support member each have a mixture of notches and protrusions. Therefore, it is these engagement features that make the second outer cross section and the inner cross section have their shape.

[0072] The heater component may include a plurality of engagement features formed on the outer surface of the second portion, wherein the engagement features are equidistant around the outer surface. Similarly, the support may include a plurality of corresponding engagement features formed on the inner surface of the container, wherein the corresponding engagement features are equidistant around the inner surface. Such an arrangement provides a more uniform locking feature, which is more difficult to rotate by distributing shear stress around the periphery rather than concentrating at one point. Therefore, the second outer cross section defines an outer periphery, and the plurality of engagement features are equidistant around the periphery. Similarly, the inner cross section defines an inner periphery, and a plurality of engagement features are equidistant around the periphery.

[0073] In one example, the heater component includes three or four engagement features, such as three or four indentations, and the recess includes three or four engagement features, such as three or four protrusions. The indentations are sized to receive corresponding protrusions.

[0074] The heater component may define a longitudinal axis, and the one or more engagement features may have a dimension less than about 1 mm measured in a direction perpendicular to the longitudinal axis. Similarly, the container may define an axis, and the one or more corresponding engagement features may have a dimension less than about 1 mm measured in a direction perpendicular to the axis. The vertical direction is measured in a radial direction toward the center of the heater component / recess.

[0075] The dimension may be the depth or height of the engagement feature. For example, a recess may have a depth of less than about 1 mm and a protrusion may have a height of less than about 1 mm.

[0076] It has been found that these dimensions provide a good balance between acting to restrict rotation without deforming the heater component to an extent that affects its structural integrity.

[0077] In a specific example, these dimensions are less than about 0.75 mm, or less than about 0.5 mm, or less than about 0.35 mm.

[0078] In another example, the dimension is less than about 0.32 mm. This provides a good balance between structural integrity while limiting rotation of the heater component.

[0079] The one or more engagement features of the heater component may have a size that is less than about 15% of the diameter of the first portion of the heater component. More preferably, the one or more engagement features of the heater component may have a size that is less than about 10% of the diameter of the first portion, or may have a size that is less than about 6% of the diameter of the first portion. For example, the first portion may have a diameter between about 4 mm and about 8 mm, or between about 5 mm and 6 mm, such as about 5.55 mm. The diameter is the outer diameter of the heater component.

[0080] The one or more engagement features of the recessed portion may have a size that is less than about 15% of the diameter of the recessed portion. More preferably, the one or more engagement features of the heater component may have a size that is less than about 10% of the diameter of the recessed portion, or may have a size that is less than about 6% of the diameter of the recessed portion. For example, the recessed portion may have a diameter between about 4 mm and about 8 mm, or between about 5 mm and 6 mm, such as about 5.55 mm.

[0081] The second portion (and therefore the engagement features) can extend over less than about 15% of the length of the heater component. Thus, the engagement features can have a certain length measured in a direction parallel to the longitudinal axis of the heater component. The length of the heater component is measured in the direction along the longitudinal axis. In some examples, the engagement features weaken the structural rigidity of the heater component. For example, if the engagement features are notches, the heater component may be more prone to bending or breaking. It has been found that by limiting the extension of the second portion to less than 15% of the length of the heater component, a good balance is provided, namely reducing the ability to rotate the heater component while providing a suitably strong heater component.

[0082] In a specific example, the second portion extends over less than about 10% of the length of the heater component or less than about 7% of the length. These lengths provide a balance between providing a keying feature to prevent rotation of the heater component and robustness.

[0083] In a specific example, the heater component has a length dimension of about 40 mm to about 50 mm (measured in a direction parallel to the longitudinal axis of the heater component). In another example, the heater component has a length dimension of about 40 mm to about 45 mm. More specifically, the heater component may have a length dimension of about 44 mm to about 45 mm.

[0084] In one example, the second portion extends less than about 5 mm along the heater component. These engagement features can therefore have a length (measured in a direction along the longitudinal axis of the heater component) of less than about 5 mm. In a preferred example, the second portion extends less than about 3.5 mm along the heater component.

[0085] In one example, the container defines an axis and the one or more engagement features have a length of less than about 5 mm measured in a direction parallel to the axis. More preferably, the one or more engagement features have a length of less than about 4 mm, or less than about 3.5 mm.

[0086] In a second aspect, there is provided a heater component for an aerosol supply device comprising a first portion having a first outer cross-section having a circular shape and a second portion having a second outer cross-section having a non-circular shape.

[0087] The second outer cross-section may be the same shape as an inner cross-section of a container of the aerosol supply device, thereby preventing the heater component from rotating within the container.

[0088] In a third aspect, there is provided a support for a heater component of an aerosol supply device, wherein the support defines a receptacle for receiving the heater component, wherein the receptacle has an inner cross-section of a non-circular shape.

[0089] The inner cross-section may be the same shape as the outer cross-section of the heater component, thereby preventing the heater component from rotating within the container.The container may receive an end of the heater component.

[0090] In a fifth aspect, there is provided a method of manufacturing a heater component for an aerosol supply device, the method comprising: (i) providing a cylindrical heater component having an outer cross-section of a circular shape, and (ii) deforming the heater component so that the outer cross-section of a portion of the heater component is non-circular. Another portion of the heater component has a circular outer cross-section.

[0091] In one example, the portion of the heater component is an end of the heater component.

[0092] In a specific example, a notch can be formed in the heater component. The non-circular cross section can be formed, for example, by a fixture. Alternatively, the non-circular cross section can be formed by scribing the outer surface of the heater component. In another example, the non-circular cross section can be formed by inserting the heater component into a container with a force that causes the heater component to deform. For example, the container can be a container of a heater component support and the container includes a plurality of protrusions. When the heater component is forced into the container, the protrusions can form a notch.

[0093] The heater component may be of unitary construction. Unitary construction means that the heater element is easier to manufacture and less likely to break.

[0094] In a first example, the heater component is initially formed (in step (i)) by rolling a sheet (e.g., metal) into a tube and sealing / welding the heater component along a seam. In some examples, the ends of the sheet overlap when the sheet is sealed. In other examples, the ends of the sheet do not overlap when the sheet is sealed.

[0095] In the second example, the heater component is initially formed by a deep drawing technique. This technique can provide a seamless heater component. However, the first example described above can produce the heater component in a shorter period of time.

[0096] Other methods of forming seamless heater components include reducing the wall thickness of a relatively thick hollow tube to provide a relatively thin hollow tube. The wall thickness can be reduced by deforming a relatively thick hollow tube. In one example, the wall can be deformed using a die forging technique. In one example, the wall can be deformed via hydroforming, wherein the inner circumference of the hollow tube is increased. A high pressure fluid can exert pressure on the inner surface of the tube. In another example, the wall can be deformed by ironing. For example, the wall of the heater element tube can be pressed together between two surfaces.

[0097] In a sixth aspect, the heater component is keyed to prevent the heater component from rotating within the container of the aerosol supply device. In some examples, the heater component is generally cylindrical. For example, the heater component can be cylindrical along a portion of its length and can include a non-cylindrical portion. The non-cylindrical portion can define an engagement feature that acts as a "key" to prevent the heater component from rotating. In some examples, keying can mean that a component / part of an entity is shaped to engage / lock with a component / part of another entity having a corresponding shape.

[0098] In addition to or in place of the keying and engagement features of the heater component / support described above, the support may include additional keying features to enable it to lock / engage with the end member of the aerosol supply device. It has been found that limiting or preventing relative rotation between the support and the end member of the device is beneficial. For example, even when the heater component and the support are keyed, the user is still able to rotate the heater component with a force that causes the heater component and the support to rotate together, which means that the support rotates relative to the end member. In order to avoid this situation, the support may include one or more locking features that engage with one or more corresponding locking features of the end member. These locking features prevent or limit the rotation of the support relative to the end member.

[0099] The end member is an element arranged at or towards the end of the aerosol supply device. The end member defines a container configured to receive the support. The end member may include at least one attachment element that allows the end member to be connected to other components of the device, such as a battery support. The end member may include an end face that defines a portion of the outer surface of the aerosol supply device. For example, the end face may form the bottom surface of the device.

[0100] In an eighth aspect of the present disclosure, an aerosol supply device is provided, the aerosol supply device comprising: a heater component; a support configured to engage the heater component to hold the heater component; and an end member, wherein the end member defines a container and the support is at least partially received within the container. The support comprises a first locking feature that engages with a second locking feature of the end member, thereby preventing the support from rotating relative to the end member. In one example, the container comprises the second locking feature.

[0101] In some examples, the support includes a plurality of first locking features that engage with a plurality of second locking features of the container.Locking features may also be referred to as keying features or engaging features.

[0102] The end member may include a base and an inner wall extending from the base. The inner wall may extend completely or partially around the base. The inner wall and the base may thus define a container in which the support member is received. The inner wall may define an axis that is substantially perpendicular to the base.

[0103] In a specific example, the first locking feature may include a recessed portion formed in the outer surface of the support, and the second locking feature may include a protrusion. Therefore, the protrusion can be received in the recessed portion. For example, the protrusion can extend into the container. This arrangement provides an effective and sturdy locking mechanism to reduce / prevent the rotation of the support. The specific locking mechanism also ensures that the device can be easily assembled. For example, the support can be introduced into the container so that the protrusion is received in the recessed portion. The recessed portion can be referred to as a notch, a channel, a notch, a hole, or an orifice.

[0104] The heater component may define a longitudinal axis, and the protrusion may extend from the inner wall of the end member into the container in a direction perpendicular to the longitudinal axis (when the heater component is engaged with the support and the support is engaged with the end member). The "direction perpendicular to the longitudinal axis" is a direction parallel to the base of the end member. The longitudinal axis may be the longitudinal axis of the support.

[0105] In addition to the inner wall, the protrusion may or may not abut the base of the end member. Thus, the protrusion may be a "spike" or "ridge" extending only from the inner wall of the container.

[0106] The recess may extend into the support in a direction perpendicular to the longitudinal axis of the heater component / support (ie radially inwardly).

[0107] The heater component may define a longitudinal axis, and the protrusion may extend from the base of the end member into the container in a direction parallel to the longitudinal axis.The longitudinal axis may be the longitudinal axis of the support.

[0108] In addition to the base, the protrusion may or may not abut the inner side wall of the end member. Therefore, the protrusion can be a "spike" or "ridge" extending only from the base of the container.

[0109] In one specific example, the protrusion extends from both the inner wall and the base into the container. Thus, the protrusion can be connected to and supported by the base and the inner wall. In this configuration, the protrusion can be stronger and less likely to break or bend when the user rotates the support.

[0110] In an alternative example, the first locking feature may include a protrusion formed on an outer surface of the support, and the second locking feature may include a recess, wherein the protrusion is received within the recess.

[0111] The heater component may define a longitudinal axis, and the protrusion may extend from the support member in a direction parallel to the longitudinal axis. For example, the protrusion may extend from the bottom surface of the support member. Additionally or alternatively, the protrusion may extend from the outer surface of the support member in a direction perpendicular to the longitudinal axis. For example, the protrusion may extend from the side surface of the support member (i.e., radially outside the support member).

[0112] In one example, the locking features of the support may be a mixture of depressions and protrusions, and the locking features of the end member may be a corresponding mixture of protrusions and depressions.

[0113] The heater component can define a longitudinal axis, and the first locking feature can have a dimension less than about 5 mm measured in a direction perpendicular to the longitudinal axis, and the second locking feature can have a dimension less than about 5 mm measured in a direction perpendicular to the longitudinal axis. For example, the protrusion / recess can have a height / depth less than about 5 mm. It has been found that locking features with these dimensions provide a good balance between limiting rotation while reducing the material required to form the locking features.

[0114] In one specific example, the dimension is between about 2 mm and about 4 mm, such as about 2 mm. Locking features of these dimensions provide an optimal balance between preventing rotation and reducing the material required to form the locking feature. In addition, locking features of these dimensions do not require increasing the size of the device to allow for the locking feature. The specification of this size is strong enough to prevent rotation.

[0115] The heater component can define a longitudinal axis, and the first locking feature can have a width dimension less than about 3 mm measured in a direction around the outer periphery of the support, and the second locking feature can have a width dimension less than about 3 mm measured in a direction around the inner periphery of the receiver. For example, the recess can have a width / gap less than about 3 mm and the protrusion can have a width less than about 3 mm. It has been found that locking features with these dimensions provide a good balance between limiting rotation while reducing the material required to form the locking features.

[0116] In a specific example, the width dimension is between about 1 mm and about 2 mm. This dimension is strong enough to prevent rotation while reducing the material and space required to provide a locking feature.

[0117] In a ninth aspect, a support for a heater component of an aerosol supply device is provided. The support is configured to engage the heater component so as to retain the heater component and is received in a container of an end member of the device. The support includes a first locking feature configured to engage a second locking feature of the end member.

[0118] The support may include any or all of the above features.

[0119] The first locking feature may include one of (i) a recess formed in the outer surface of the support and (ii) a protrusion formed on the outer surface of the support.

[0120] The support may define an axis, such as a longitudinal axis, and the first locking feature may have a dimension measured in a direction perpendicular to the axis that is less than about 5 mm.

[0121] In a tenth aspect, an end member for an aerosol supply device is provided. The end member defines a receptacle configured to receive a support for a heater component of the device and includes a locking feature configured to engage a corresponding locking feature of the support.

[0122] The locking feature of the end member may be referred to as a second locking feature and the corresponding locking feature may be referred to as a first locking feature. In some examples, the recess may include the locking feature.

[0123] The end member may include any or all of the above features.

[0124] The locking feature may include one of a recess formed in the container and a protrusion formed in the container.

[0125] The protrusion may abut one or more surfaces in the container, such as a base or an inner wall.

[0126] The end member may include a base and an inner wall extending from the base, and the locking feature may include a protrusion extending from at least one of the inner wall and the base into the container.

[0127] The inner wall can define an axis, and the projection can extend from the inner wall into the container in a direction perpendicular to the axis. Additionally or alternatively, the projection can extend from the base of the container into the container in a direction perpendicular to the base (i.e., parallel to the axis defined by the inner wall). The projection can extend from the inner wall into the container less than about 5 mm. Therefore, the projection can have a height dimension measured in a direction perpendicular to the axis defined by the inner wall. The inner wall can also be referred to as a sidewall.

[0128] In an eleventh aspect, a support for a heater component of an aerosol supply device is provided. A portion of the support may be keyed to prevent the support from rotating within an end member of the device. The keying may be provided, for example, by one or more locking features. Another portion of the support may also be keyed to prevent the support from rotating relative to the heater component.

[0129] In a twelfth aspect, an end member for an aerosol supply device is provided. The end member may include a container for receiving a support for a heater component of the device. The end member may be keyed to prevent the support from rotating within the container. For example, the recessed portion of the end member may be keyed.

[0130] In some examples, the coil is configured to heat at least one electrically conductive heating component / element (also referred to as a heater component / element) during use, such that thermal energy can be conducted from the at least one electrically conductive heating component to the aerosol generating material, thereby heating the aerosol generating material.

[0131] In some examples, the coil is configured to generate a changing magnetic field for penetrating at least one heating component / element in use, thereby causing inductive heating and / or hysteresis heating of at least one heating component. In such an arrangement, the or each heating component may be referred to as a "susceptor". A coil configured to generate a changing magnetic field in use to penetrate at least one electrically conductive heating component, thereby causing inductive heating of the at least one electrically conductive heating component, may be referred to as an "induction coil" or "inductor coil".

[0132] The device may include a heating component, such as an electrically conductive heating component, and the heating component may be appropriately positioned or positionable relative to the coil to enable such heating of the heating component. The heating component may be in a fixed position relative to the coil. Alternatively, both the device and the article may include at least one respective heating component, such as at least one electrically conductive heating component, and the coil may cause heating of the heating component of each of the device and the article when the article is in the heating zone.

[0133] In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of a heating zone of the device configured to receive an aerosol-generating material. In some examples, the coil is a helical coil surrounding at least a portion of a heating zone. The heating zone may be a container shaped to receive the aerosol-generating material.

[0134] In some examples, the device includes a conductive heating member that at least partially surrounds the heating zone, and the coil is a helical coil that surrounds at least a portion of the conductive heating member. In some examples, the conductive heating member is tubular. In some examples, the coil is an inductor coil.

[0135] Preferably, the device is a tobacco heating device, also known as a heat-not-burn device.

[0136] Figure 1 An example of an aerosol supply device 100 for generating an aerosol from an aerosol generating medium / material is shown. In summary, the device 100 can be used to heat a replaceable article 110 including an aerosol generating medium to generate an aerosol or other inhalable medium that is inhaled by a user of the device 100.

[0137] The device 100 includes a housing 102 (in the form of a housing) that surrounds and houses the various components of the device 100. The device 100 has an opening 104 at one end through which an article 110 can be inserted to be heated by the heating assembly. In use, the article 110 can be fully or partially inserted into the heating assembly, where the article 110 can be heated by one or more components of the heater assembly.

[0138] The device 100 of this example includes a first end member 106 including a cover 108 that is movable relative to the first end member 106 to close the opening 104 when no article 110 is in place. Figure 1 In FIG, cover 108 is shown in an open configuration, however, cover 108 can be moved to a closed configuration. For example, a user can slide cover 108 in the direction of arrow "A".

[0139] The device 100 may also include a user-operable control element 112, such as a button or switch, which when pressed operates the device 100. For example, a user may turn on the device 100 by operating the switch 112.

[0140] Device 100 may also include electrical components, such as a socket / port 114, which may receive a cable to charge a battery of device 100. For example, socket 114 may be a charging port, such as a USB charging port. In some examples, socket 114 may additionally or alternatively be used to transfer data between device 100 and another device, such as a computing device.

[0141] Figure 2 Depicted Figure 1 The device 100 is shown with the cover 102 removed and no article 110 present. The device 100 defines a longitudinal axis 134.

[0142] like Figure 2 As shown, the first end member 106 is disposed at one end of the device 100, and the second end member 116 is disposed at the opposite end of the device 100. The first end member 106 and the second end member 116 together at least partially define an end surface of the device 100. For example, the bottom surface of the second end member 116 at least partially defines the bottom surface of the device 100. The edge of the housing 102 can also define a portion of the end surface. In this example, the cover 108 also defines a portion of the top surface of the device 100.

[0143] The end of the device closest to the opening 104 can be referred to as the proximal end (or mouth end) of the device 100 because it is closest to the user's mouth in use. In use, the user inserts the article 110 into the opening 104, operates the user control 112 to start heating the aerosol generating material and draws the aerosol generated in the device. This causes the aerosol to flow through the device 100 along a flow path toward the proximal end of the device 100.

[0144] The other end of the device farthest from the port 104 can be referred to as the distal end of the device 100 because it is the end farthest from the user's mouth in use. When the user draws on the aerosol generated in the device, the aerosol flows out of the distal end of the device 100.

[0145] The device 100 also includes a power source 118. The power source 118 can be, for example, a battery, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium batteries (e.g., lithium ion batteries), nickel batteries (e.g., nickel cadmium batteries), and alkaline batteries. The battery is electrically coupled to the heating assembly so as to supply electrical power when needed and under the control of a controller (not shown) to heat the aerosol generating material. In this example, the battery is connected to a central support 120 that holds the battery 118 in place.

[0146] The device further includes at least one electronic module 122. The electronic module 122 may include, for example, a printed circuit board (PCB). The PCB 122 may support at least one controller (e.g., a processor) and a memory. The PCB 122 may also include one or more electrical tracks to electrically connect the various electronic components of the device 100 together. For example, a battery terminal may be electrically connected to the PCB 122 so that power can be distributed throughout the device 100. The socket 114 may also be electrically coupled to the battery via the electrical tracks.

[0147] In the example apparatus 100, the heating assembly is an induction heating assembly and includes various components to heat the aerosol-generating material of the article 110 via an induction heating process. Induction heating is the process of heating an electrically conductive object (e.g., a susceptor) by electromagnetic induction. The induction heating assembly may include an induction element (e.g., one or more induction coils) and a means for passing a varying current (e.g., an alternating current) through the induction element. The varying current in the induction element generates a varying magnetic field. The varying magnetic field penetrates a susceptor appropriately positioned relative to the induction element and generates eddy currents inside the susceptor. The susceptor has a resistance to the eddy currents, so the flow of the eddy currents relative to the resistance causes the susceptor to be heated by Joule heating. In the case where the susceptor includes a ferromagnetic material such as iron, nickel, or cobalt, heat may also be generated by hysteresis losses in the susceptor, i.e., the orientation of magnetic dipoles in the magnetic material changes due to the alignment of the magnetic dipoles with the varying magnetic field. In induction heating, heat is generated inside the susceptor, thereby allowing rapid heating, compared to, for example, heating by conduction. Furthermore, no physical contact is required between the induction heater and the susceptor, allowing for enhanced freedom in construction and application.

[0148] The induction heating assembly of the example device 100 includes a susceptor arrangement 132 (referred to herein as a "susceptor"), a first inductor coil 124, and a second inductor coil 126. The first inductor coil 124 and the second inductor coil 126 are made of a conductive material. In this example, the first and second inductor coils 124, 126 are made of a Litz wire / cable that is wound in a spiral manner to provide the spiral inductor coils 124, 126. Litz wire includes a plurality of 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. In the example device 100, the first and second inductor coils 124, 126 are made of copper Litz wire having a rectangular cross-section. In other examples, the Litz wire may have a cross-section of other shapes, such as a circle.

[0149] The first inductor coil 124 is configured to generate a first changing magnetic field for heating a first portion of the susceptor 132, and the second inductor coil 126 is configured to generate a second changing magnetic field for heating a second portion of the susceptor 132. In this example, the first inductor coil 124 is adjacent to the second inductor coil 126 in a direction along the longitudinal axis 134 of the device 100 (i.e., the first and second inductor coils 124, 126 do not overlap). The susceptor arrangement 132 may include a single susceptor or two or more separate susceptors. The ends 130 of the first and second inductor coils 124, 126 may be connected to the PCB 122.

[0150] It should be understood that in some examples, the first and second inductor coils 124, 126 can have at least one characteristic that is different from each other. For example, the first inductor coil 124 can have at least one characteristic that is different from the second inductor coil 126. More specifically, in one example, the first inductor coil 124 can have a different inductance value than the second inductor coil 126. Figure 2 In the embodiment of the present invention, the first inductor coil 124 and the second inductor coil 126 have different lengths, so that the first inductor coil 124 is wound around a smaller portion of the susceptor 132 than the second inductor coil 126. Therefore, the first inductor coil 124 can include a different number of turns than the second inductor coil 126 (assuming that the spacing between the turns is substantially the same). In yet another example, the first inductor coil 124 can be made of a different material than the second inductor coil 126. In some examples, the first inductor coil 124 and the second inductor coil 126 can be substantially identical.

[0151] In this example, the first inductor coil 124 and the second inductor coil 126 are wound in opposite directions. This may be useful when the inductor coils are activated at different times. For example, initially, the first inductor coil 124 may be operated to heat a first portion of the article 110, and at a later time, the second inductor coil 126 may be operated to heat a second portion of the article 110. When used in conjunction with certain types of control circuits, winding the coils in opposite directions helps reduce the current induced in the inactive coils. Figure 2 In the embodiment, the first inductor coil 124 is a right-handed spiral and the second inductor coil 126 is a left-handed spiral. However, in another embodiment, the inductor coils 124, 126 can be wound in the same direction, or the first inductor coil 124 can be a left-handed spiral and the second inductor coil 126 can be a right-handed spiral.

[0152] The susceptor 132 of this example is hollow and thus defines a container within which the aerosol generating material is received. For example, the article 110 may be inserted into the susceptor 132. In this example, the susceptor 120 is tubular, having a circular cross-section.

[0153] Figure 2 The device 100 further includes an insulating member 128, which can be generally tubular and at least partially surround the susceptor 132. The insulating member 128 can be made of any insulating material, such as plastic. In this particular example, the insulating member is made of polyetheretherketone (PEEK). The insulating member 128 can help insulate the various components of the device 100 from the heat generated in the susceptor 132.

[0154] The insulating member 128 may also fully or partially support the first inductor coil 124 and the second inductor coil 126. Figure 2 As shown, first inductor coil 124 and second inductor coil 126 are positioned around insulating member 128 and in contact with a radially outer surface of insulating member 128. In some examples, insulating member 128 does not abut first inductor coil 124 and second inductor coil 126. For example, a small gap may exist between an outer surface of insulating member 128 and an inner surface of first inductor coil 124 and second inductor coil 126.

[0155] In a particular example, the susceptor 132 , the insulating member 128 , and the first and second inductor coils 124 , 126 are coaxial about a central longitudinal axis of the susceptor 132 .

[0156] Figure 3 A side view of the device 100 is shown in partial cross section. In this example there is a housing 102. The rectangular cross-sectional shape of the first and second inductor coils 124, 126 is more clearly visible.

[0157] The device 100 also includes a support 136 that engages one end of the susceptor 132 to hold the susceptor 132 in place. The support 136 is connected to the second end member 116.

[0158] The device may also include a second printed circuit board 138 associated with the control element 112 .

[0159] The device 100 also includes a second cover / cap 140 and a spring 142 disposed toward the distal end of the device 100. The spring 142 allows the second cover 140 to open to provide access to the susceptor 132. The user can open the second cover 140 to clean the susceptor 132 and / or the support 136.

[0160] Device 100 also includes an expansion chamber 144 extending away from the proximal end of susceptor 132 toward opening 104 of the device. Retention clip 146 is at least partially located within expansion chamber 144 to abut and retain article 110 when received within device 100. Expansion chamber 144 is connected to end member 106.

[0161] Figure 4 yes Figure 1 1 is an exploded view of the device 100, wherein the outer cover 102 is omitted.

[0162] Figure 5A Depicted Figure 1 A cross section of a portion of device 100 . Figure 5B Depicted Figure 5A A close up view of the area. Figure 5A and Figure 5B The article 110 is shown received within a susceptor 132, wherein the dimensions of the article 110 are such that the outer surface of the article 110 abuts the inner surface of the susceptor 132. This ensures that heating is most effective. The article 110 of this example includes an aerosol generating material 110a. The aerosol generating material 110a is located within the susceptor 132. The article 110 may also include other components, such as filters, packaging materials, and / or cooling structures.

[0163] Figure 5B The outer surface of the susceptor 132 is shown spaced apart from the inner surfaces of the inductor coils 124, 126 by a distance 150 measured in a direction perpendicular to a longitudinal axis 158 of the susceptor 132. In a specific example, the distance 150 is about 3 mm to 4 mm, about 3 to 3.5 mm, or about 3.25 mm.

[0164] Figure 5B It is further shown that the outer surface of the insulating member 128 is spaced apart from the inner surfaces of the inductor coils 124, 126 by a distance 152, which is measured in a direction perpendicular to the longitudinal axis 158 of the susceptor 132. In one specific example, the distance 152 is about 0.05 mm. In another example, the distance 152 is substantially 0 mm, such that the inductor coils 124, 126 abut and contact the insulating member 128.

[0165] In one example, the susceptor 132 has a wall thickness 154 of about 0.025 mm to 1 mm, or about 0.05 mm.

[0166] In one example, the susceptor 132 has a length of about 40 mm to 60 mm, about 40-45 mm, or about 44.5 mm.

[0167] In one example, the insulating member 128 has a wall thickness 156 of approximately 0.25 mm to 2 mm, 0.25 mm to 1 mm, or approximately 0.5 mm.

[0168] Figure 6 A susceptor 132 is depicted, which in this example is constructed from a single piece of material and thus has a unitary construction. The susceptor may be more generally referred to as a heater component. As described above, the susceptor 132 is hollow and may receive an aerosol-generating material for heating. In this example, the susceptor 132 has a flared (proximal) end to make it easier to receive the aerosol-generating material within the susceptor. In other examples, the susceptor 132 does not have a flared end.

[0169] The susceptor 132 includes a first portion 202 and a second portion 204. The first portion 202 has a first length dimension and the second portion 204 has a second length dimension. These length dimensions are measured in a direction parallel to the longitudinal axis 158 of the susceptor 132. The susceptor 132 has an overall length dimension of between about 40 mm and about 50 mm. The second portion 204 has a length of less than about 5 mm. In this particular example, the susceptor 132 has an overall length of about 44.5 mm and the second portion 204 has a length of about 3.5 mm, such that the second portion extends about 7% to about 8% over the length of the susceptor 132.

[0170] The first portion 202 has a first outer cross-section that is circular in shape, and the second portion 204 has a second outer cross-section that is non-circular in shape. The outer cross-sections are defined by the outer surface of the susceptor. The first outer cross-section may be taken in a plane disposed perpendicular to the longitudinal axis 158 at any point along the first portion 202. Even if the first outer cross-section is taken from the flared end region, the cross-section will be circular. The second outer cross-section may be taken in a plane disposed perpendicular to the longitudinal axis 158 at any point along the second portion 204.

[0171] In this example, the second portion 204 is disposed at one end (the distal end) of the susceptor 132. In other examples, the second portion 204 may not be disposed at the end of the susceptor.

[0172] In use, the user inserts the article 110 into the susceptor 132. Figure 1 As shown, the article 110 has a cylindrical shape and thus has a circular cross-section. The article 110 is thus received within the susceptor 132 and the outer cross-section of the article 110 conforms to the inner cross-section of the first portion 202. In some examples, the shape of the inner cross-section of the second portion 204 is also circular.

[0173] The second outer cross-section is defined by the outer surface of the susceptor 132 in the second portion 202. In order to give the second outer cross-section its non-circular shape, the second portion 202 includes one or more engagement features 206. The engagement features 206 can be, for example, protrusions and / or indentations. Other engagement features can also be used.

[0174] In this example, the engagement feature 206 is a notch / channel / recess 206 extending along the outer surface of the susceptor 132 in a direction parallel to the longitudinal axis 158. The notch 206 has a length measured along the longitudinal axis 158, wherein the length is defined by the length of the second portion 204, as described above.

[0175] The notch 206 has a maximum depth dimension measured radially inward of the susceptor in a direction perpendicular to the longitudinal axis 158. In this example, the notch 206 has a maximum depth of less than about 1 mm. In particular, the notch 206 has a depth of about 0.35 mm. The susceptor 132 has a diameter between about 4 mm and 8 mm, or between about 5 mm and 6 mm. In this particular example, the non-flared region of the susceptor 132 (and therefore the first portion 202) has a diameter of about 5.55 mm, such that the notch 206 has a depth of about 6% of the diameter of the susceptor 132. The notch 206 may have a width (measured in an azimuth direction around the outer periphery of the susceptor 132) of about 0.1 mm.

[0176] The susceptor 132 of this example includes four notches equally spaced around the perimeter of the susceptor 132. The channels formed by the notches 206 give the second portion 204 its non-circular cross-section.

[0177] Figure 7 A perspective view of a susceptor 132 engaged with a susceptor support 136 is shown. The support 136 includes an engagement portion 208 that engages at least a second portion 204 of the susceptor 132 to hold it at a predetermined distance from one or more inductor coils 124, 126. In this example, the support engages the distal end of the susceptor 132, however, the support may alternatively engage the proximal end of the susceptor 132 or may engage the susceptor 132 at any other point along its length.

[0178] Fig. 8A A perspective view of support 136 is depicted. Figure 8B A top view of the support 136 is depicted. The support 136 may be made of an insulating material, such as plastic. In this example, the support 136 is made of polyetheretherketone (PEEK). The support 136 may be made, for example, by injection molding.

[0179] The support 136 defines an axis 214, such as a longitudinal axis 214. The support 136 engages the susceptor 132 and holds the susceptor 132 parallel to the axis 214. In the engaged position, the longitudinal axis 158 of the susceptor 132 is parallel to the longitudinal axis 214 of the support 136 and may be coaxial.

[0180] The support 136 defines a container 210 to receive and hold the susceptor 132. The support may be provided, for example, by an engagement portion 208. In this example, the engagement portion 208 includes a plurality of longitudinal extensions that abut the outer surface of the susceptor 132 when received within the container 210.

[0181] The container 210 has an inner cross-section corresponding to the second outer cross-section of the susceptor 132, thereby preventing the susceptor 132 from rotating relative to the support 136. Therefore, the shape of the inner cross-section is non-circular.

[0182] The inner cross section is defined by the inner surface of the container 210. The inner cross section can be taken in a direction perpendicular to the axis 214. In order to give the inner cross section its non-circular shape, the container 210 includes one or more engagement features 212. The engagement features 212 can be, for example, protrusions and / or indentations. Other engagement features can also be used. The engagement features 206 of the susceptor 132 are thus engaged / interlocked with the engagement features 212 of the container 210. This engagement prevents the susceptor 132 from rotating within the container. Therefore, the susceptor 132 and the support member 136 are keyed to prevent relative rotation.

[0183] In this example, the engagement feature 212 of the support 136 is a protrusion / ridge 212 that extends along the inner surface of the container 210 in a direction parallel to the axis 214. The protrusion 212 has a length measured along the axis 214. The size of the protrusion 212 corresponds to the size of the indentation 206 of the susceptor 132.

[0184] The protrusion 212 has a maximum height dimension measured in a direction perpendicular to the axis 214 (i.e., radially inward, toward the center of the recess 210). In this example, the protrusion 212 has a maximum height of less than about 1 mm. In this example, the protrusion 212 has a height of about 0.35 mm. The protrusion 212 may have a width of about 0.1 mm (measured in an azimuth direction around the inner periphery of the recess 210).

[0185] The support member 136 of this example includes four protrusions 212 that are equally spaced around the inner periphery of the container 210. The protrusions 212 give the container 210 a non-circular cross-section. These protrusions can be integrally formed with the support member 136, or can be separate and attached to the inner surface of the container 210.

[0186] Fig.9ADepicted along Figure 6 1 is a diagrammatic representation of a cross section of the second portion 204 of the susceptor 132 taken along line BB depicted in FIG. The engagement feature 206 is a notch and gives the susceptor 132 a non-circular outer cross section. Fig. 9B Depicted along Figure 6 1 is a diagrammatic representation of a first portion 202 of a susceptor 132 taken along line AA depicted in FIG. The first portion 202 has a circular outer cross-section. Fig. 9C Depicted is a diagrammatic representation of a cross section of an engagement portion 208 of a support 136. These engagement features 212 are protrusions and give the container 210 a non-circular inner cross section.

[0187] Fig. 10A A diagrammatic representation of a cross section through a second portion of another example susceptor is depicted. In this example, the engagement features 206 are protrusions and impart a non-circular outer cross section to the susceptor 132. These protrusions may be integrally formed with the susceptor, or may be separate and attached to the outer surface of the susceptor. Fig. 10B A diagrammatic representation of a cross section of an engagement portion of another example support is depicted. The engagement features 212 are notches and give the container a non-circular inner cross section. Fig. 10A and Fig. 10B In the embodiment, the susceptor and container each have three engagement features.

[0188] Fig.11 is a diagrammatic representation of another example receptor 332 that may be used in the device 100. Figure 6-Figure 1 0, the susceptor 332 is keyed to prevent the susceptor 332 from rotating. The susceptor 332 includes a first portion 302 and a second portion 304. The first portion 302 has a first outer cross-section with a circular shape, and the second portion 304 has a second outer cross-section with a non-circular shape. Fig.11 In the example shown, the ends of the susceptor 332 are keyed.

[0189] In order to give the second outer cross-section its non-circular shape, the second portion 302 includes one or more engagement features 306. In this example, the engagement features 306 are protrusions 306 extending from the end of the susceptor 332 in a direction parallel to the longitudinal axis of the susceptor 332. The protrusions may be integrally formed with the susceptor 332, or may be separate and fixed to the end of the susceptor 332. There are four engagement features 306 in this example.

[0190] Fig.12 Depicted along Fig.11 3. A diagrammatic representation of a cross section through the second portion 304 of the susceptor 332, taken along the line CC depicted in FIG. In this example, the engagement feature 206 is a longitudinal protrusion and gives the susceptor 132 a non-circular outer cross section.

[0191] Fig.13 A top view of another example support 336 is depicted that is keyed to prevent rotation of the susceptor 332. The support 226 includes one or more engagement features 312 that are configured to engage with the engagement features 306 of the susceptor 332. In this example, the engagement features 312 are notches, recesses, or grooves that are configured to receive the protrusions 306 of the susceptor 332.

[0192] In any of the above examples, the first portion of the susceptor may have an inner and / or outer cross-section that varies in size (in terms of area and diameter) along its length.

[0193] Combination of the above Figure 6-Figure 13 The described features help prevent the susceptor from rotating within the aerosol supply device. As described above, the susceptor is keyed to the support to prevent the susceptor from rotating. In addition to the susceptor / support keying, or in lieu of the susceptor / support keying, the support may also be keyed to the end member. This prevents the susceptor and the support from rotating within the device relative to the end member. For example, a user may rotate the article such that the susceptor rotates with a force that causes the susceptor and the support to rotate together. Thus, the susceptor and the support may rotate relative to the end member. To avoid this, the support may include one or more locking features that engage with one or more corresponding locking features of the end member. These locking features prevent or limit the rotation of the support relative to the end member. Therefore, the support may be keyed to the end member.

[0194] In some examples, the engagement feature of the susceptor can be formed when the susceptor is inserted into the support. For example, a protrusion or ridge formed in the support can cause the susceptor to deform around the protrusion or ridge, thereby creating a corresponding engagement feature in the susceptor. This can make manufacturing easier, for example because the susceptor does not need to be aligned with the support during assembly. This may be most useful when the susceptor has a relatively low radial strength. Other types of engagement features, such as asymmetric cross-sections, can also be formed in the susceptor in this way.

[0195] Fig.14A Depicted is a diagram of a device that is coupled to support member 136. Figure 2 The end member 116 is described. Fig. 14B A close up view of a locking feature for preventing rotation of the support 136 relative to the end member 116 is depicted.

[0196] The end member 116 can be disposed at one end of the device 100. As shown, the end member 116 defines a container 402. The container 402 is defined by one or more inner walls 408 (also referred to as side walls) and a base 410. The inner wall 408 extends away from the base 410 and defines an axis 414. The axis 414 can be parallel to the longitudinal axis 134 of the device 100, and / or the longitudinal axis 158 of the susceptor 132 and / or the longitudinal axis 214 of the support 136. The inner wall 408 is thus perpendicular to the base 410. In other examples, the axis 414 can be angled relative to any of these axes. In this example, the base 410 defines a flat surface, but in other examples, the base 410 can be curved.

[0197] The end member 116 includes an end surface 416 that defines a portion of an outer surface of the aerosol supply device 100. For example, the end surface 416 may form a bottom surface of the device 100.

[0198] Optionally, the end member 116 may also include at least one attachment element 412 that allows the end member 116 to be connected to the battery support 120 .

[0199] like Fig.14A As shown, one end of the support 136 is received within the container 402. The container 402 may include one or more features that abut the support 136. To prevent the support 136 from being able to rotate within the container 402, the support 136 includes a first locking feature 404 and the end member 116 includes a second locking feature 406. Fig. 14B More clearly shown is the engagement of the first and second locking features 404, 406. In this example, the second locking feature 406 is a component of the container 402, however in other examples, the second locking feature 406 can be located anywhere on the end member 116 as long as it engages with the first locking feature 404 of the support member 136.

[0200] exist Fig.14A and Fig. 14B , the first locking feature 404 is a recess 404 formed in the outer surface of the support 136, and the second locking feature 406 is a protrusion 406 extending into the container 402. The protrusion 406 is sized to be received within the recess 404. When engaged, the first and second locking features 404, 406 prevent the support 136 from being able to rotate about the axis 214 of the support 136 in the azimuthal direction.

[0201] In an alternative example, the first locking feature 404 may be a protrusion formed on the outer surface of the support 136 , and the second locking feature 406 may be a recess.

[0202] Fig.15The underside of the support 136 is depicted. The first locking feature 404 in the form of a recess is more clearly shown. The longitudinal axis 214 of the support 136 is shown pointing inwardly toward the page. The longitudinal axis 214 is arranged parallel to the longitudinal axis 158 of the susceptor 132.

[0203] In this example, the recess 404 extends from the outer surface of the support 136 into the support 136 in a direction 418. For example, the direction 418 can be a radial direction. The direction 418 is perpendicular to the longitudinal axis 214, 414. The recess 404 thus has a depth dimension 420, which can be between about 2 mm and about 5 mm. In this particular example, the depth dimension 420 is about 2 mm.

[0204] The recess 404 also has a width dimension 422 measured in a direction around the outer periphery of the support 136. The outer periphery is the edge farthest from the axis 214. Therefore, the direction around the outer periphery can be the azimuthal direction around the axis 214. In some examples, the width dimension 422 can be between about 1 mm and about 3 mm. Fig.15 In the example of FIG. 4 , width dimension 422 is between approximately 1.3 mm and approximately 1.5 mm.

[0205] Fig.16 A top view of the end member 116 is shown. The second locking feature 406 is in the form of a protrusion. An axis 414 defined by the inner wall 414 is shown pointing inwardly toward the page. The axis 414 is arranged parallel to the longitudinal axis 158 of the susceptor 132 and parallel to the longitudinal axis of the support 214.

[0206] In this example, the protrusion 406 extends from the inner wall 408 of the end member 116 into the container 402 in a direction 424 perpendicular to the longitudinal axis 158, 214 and the axis 414. For example, the direction 424 can be a radial direction. Therefore, the protrusion 406 has a height dimension 426, which can be between about 2 mm and about 5 mm. In this particular example, the height dimension 426 is about 2 mm.

[0207] In addition to extending from the inner wall 408, the protrusion 406 also extends from the base 410 into the container 402 in a direction parallel to the longitudinal axis 158, 214 and the axis 414. Therefore, the protrusion 406 is supported by the inner wall 408 and the base 410 to improve stability. In other examples (not shown), the protrusion can be supported by the base or the inner wall. For example, the protrusion can extend upward from the base in a direction parallel to the axis 414, or it can extend outward from the inner wall in a direction perpendicular to the axis 414.

[0208] The protrusion also has a width dimension 428 measured in a direction around the inner perimeter / surface of the container / inner wall 410, 408. The direction around the inner perimeter can be an azimuthal direction around the axis 214, 158. In some examples, the width dimension 428 can be between about 1 mm and about 3 mm. Fig.16 In the example of FIG. 4 , width dimension 428 is between approximately 1.3 mm and approximately 1.5 mm.

[0209] exist Fig.15 In one embodiment, the recess is open around its periphery. In another example (not shown), the recess may be in the form of an orifice that is closed around its periphery.

[0210] In examples where the recess is in the form of an aperture, a protrusion may extend from the base of the end member (in a direction parallel to the longitudinal axis of the support) and be received within the aperture. For example, one or more "pins" may extend from the base and be received in one or more apertures in the underside of the support.

[0211] Alternatively, the support may include protrusions extending from the underside of the support (in a direction parallel to the longitudinal axis of the support) and received in corresponding apertures / recesses formed in the base of the end member. For example, one or more "pins" may extend from the support and be received in one or more apertures in the base of the end member. In another example, the protrusions may extend from a side surface of the support (rather than the underside of the support).

[0212] In an optional example, the first and second locking features can be substantially the same as the engagement features on the susceptor and the support member. For example, the first locking feature of the support member can be a protrusion formed on the outer surface of the support member, and the second locking feature can be a notch formed on the inner wall of the end member, and the channel receives the protrusion.

[0213] The above embodiments are to be understood as illustrative examples of the present invention. Other embodiments of the present invention may be envisioned. 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 combination with any combination of any other embodiment. In addition, equivalents and modifications not described above may also be employed without departing from the scope of the present invention as defined by the appended claims.

Claims

1. An aerosol supply device, comprising: Heater components, including: a first portion having a first outer cross-section; and a second portion having a second outer cross-section, wherein the second outer cross-section is different from the first outer cross-section; wherein the heater component is hollow such that the heater component defines a receptacle for receiving an aerosol generating material, and Support parts, including: a container engaged with the second portion of the heater component to hold the heater component, wherein the container has an inner cross-section corresponding to the second outer cross-section of the heater component, thereby preventing the heater component from rotating relative to the support member, so that the support member is arranged and configured to prevent the heater component from rotating in the aerosol supply device.

2. The aerosol supply device according to claim 1, wherein: The first outer cross-section is circular in shape; and The second outer cross-section is a non-circular shape.

3. The aerosol supply device according to claim 1, wherein: The second outer cross-section is at least partially defined by one or more engagement features formed on an outer surface of the second portion; and The inner cross-section is at least partially defined by one or more corresponding engagement features formed on the inner surface of the container.

4. The aerosol supply device according to claim 3, wherein: the heater component includes a plurality of engagement features formed on an outer surface of the second portion, wherein the engagement features are equally spaced about the outer surface; and The support includes a plurality of corresponding engagement features formed on an inner surface of the container, wherein the corresponding engagement features are equally spaced around the inner surface.

5. The aerosol supply device according to claim 3, wherein: The heater component defines a longitudinal axis, and the one or more engagement features have a dimension less than 1 mm measured in a direction perpendicular to the longitudinal axis; and The container defines an axis, and the one or more corresponding engagement features have a dimension less than 1 mm measured in a direction perpendicular to the axis.

6. The aerosol supply device according to claim 1, wherein: The second portion extends over less than 15% of the length of the heater component.

7. The aerosol supply device according to claim 3, wherein: The container defines an axis, and the one or more engagement features have a length measured in a direction parallel to the axis that is less than 5 mm.

8. A heater component for an aerosol supply device, comprising: a first portion having a first outer cross-section having a circular shape; and a second portion having a second outer cross-section that is non-circular in shape such that the heater component is configured to engage a support that holds the heater component in place, thereby preventing the heater component from rotating relative to the support, Wherein the heater component is hollow such that the heater component defines a container for receiving an aerosol generating material.

9. The heater component according to claim 8, wherein The second outer cross-section is at least partially defined by one or more engagement features formed on an outer surface of the second portion.

10. The heater component of claim 9, comprising a plurality of engagement features formed on the outer surface of the second portion, wherein: The engagement features are equally spaced around the outer surface.

11. The heater component according to claim 9, wherein The heater component defines a longitudinal axis, and the one or more engagement features have a dimension less than 1 mm measured in a direction perpendicular to the longitudinal axis.

12. The heater component according to claim 8, wherein The second portion extends over less than 15% of the length of the heater component.

13. The heater component according to claim 8, wherein The second portion extends less than 5 mm along the heater member.

14. A support member for a heater component according to claim 8, wherein: The support member defines a receptacle for receiving the heater component, wherein the receptacle has an inner cross-section that is non-circular in shape.

15. The support member according to claim 14, wherein: The inner cross-section is at least partially defined by one or more engagement features formed on an inner surface of the container.

16. The support member of claim 15, comprising a plurality of engagement features formed on an inner surface of the container, wherein: The engagement features are equally spaced around the inner surface.

17. The support member according to claim 15, wherein: The container defines an axis, and the one or more engagement features have a dimension less than 1 mm measured in a direction perpendicular to the axis.

18. The support member according to claim 15, wherein: The container defines an axis and the one or more engagement features have a length measured in a direction parallel to the axis that is less than 5 mm.

19. An aerosol supply device, comprising: A heater component according to any one of claims 8 to 13; and A support according to any one of claims 14 to 18, engaged with the heater component.

20. A heater component for an aerosol supply device, wherein: A portion of the heater component is keyed to prevent the heater component from rotating within the container of the aerosol supply device, such that the heater component has: (i) one or more engagement features configured to interlock with a support that holds the heater component in place; and / or (ii) a cross-sectional shape configured to interlock with a support that holds the heater component in place, wherein the heater component is hollow such that the heater component defines a container for receiving an aerosol generating material.

21. The heater component of claim 20, wherein: The heater member is generally cylindrical.

22. A support member for a heater component according to claim 20, wherein: The support includes a receptacle that receives the heater component, wherein the receptacle is keyed to prevent rotation of the heater component within the receptacle.

23. An aerosol providing system, comprising: An aerosol supply device according to any one of claims 1 to 7 and 19; and Articles comprising aerosol-generating materials.

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