EP4676258A1

EP4676258A1 - User interface for an aerosol provision device

Info

Publication number: EP4676258A1
Application number: EP24710040.7A
Authority: EP
Inventors: Dean Cowan; Ronghui Li; Ying Liu
Original assignee: Nicoventures Trading Ltd
Current assignee: Nicoventures Trading Ltd
Priority date: 2023-03-10
Filing date: 2024-03-05
Publication date: 2026-01-14
Also published as: WO2024188728A1; TW202437938A; JP2026510315A; WO2024188728A9

Abstract

This application relates to a user interface for an aerosol provision device. The user interface has a movable element. The movable element is biased to assume a first position and is movable to assume at least a second different position.

Description

USER INTERFACE FOR AN AEROSOL PROVISION DEVICE

TECHNICAL FIELD

The present invention relates to a user interface for an aerosol provision device. An aerosol provision device, an aerosol provision system and a method of generating aerosol.

BACKGROUND

Smoking articles such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these articles by creating products that release compounds without combusting. Examples of such products are so-called “heat not burn” products or tobacco heating devices or products, which release compounds by heating, but not burning, material. The material may be, for example, tobacco or other non-tobacco products, which may or may not contain nicotine.

Aerosol provision systems, which cover the aforementioned devices or products, are known. Common systems use heaters to create an aerosol from a suitable medium which is then inhaled by a user. Often the medium used needs to be replaced or changed to provide a different aerosol for inhalation. It is known to use induction heating systems as heaters to create an aerosol from a suitable medium. An induction heating system generally consists of a magnetic field generating device for generating a varying magnetic field, and a susceptor or heating material which is heatable by penetration with the varying magnetic field to heat the suitable medium.

Conventional aerosol provision devices comprise a cylindrical heating chamber into which a rod shaped consumable is inserted.

SUMMARY

According to an aspect there is provided a user interface for an aerosol provision device, the user interface comprising a movable element, wherein the movable element is biased to assume a first position and wherein the movable element is movable to assume at least a second different position.

Optionally, the movable element may be moved by being translated or slid. This is in contrast to being depressed.

Optionally, the movable element may be depressed in a z-direction and translated or slid in an x-direction, wherein the x-direction is substantially orthogonal to the z-direction.

Optionally, the movable element may be biased by: (i) one or more springs; and/or (ii) one or more magnets or electromagnets; and/or (iii) one or more resilient elements.

Optionally, the movable element may be movable to a third different position.

Optionally, the movable element is movable in a first direction from the first position to the second position and wherein the movable element is movable in a second different direction from the first position to the third position.

Optionally, the first and second directions are opposed to each other.

Optionally, the movable element is movable in a first direction a first distance from the first position to the second position and wherein the movable element is movable in the first direction a second different distance from the first position to the third position.

According to various embodiments the movable element may be moved in the same direction from a first position to a second position, and then from a second position to a third position.

Optionally, when the movable element is in the first position the movable element may be depressed or touched in order to cause one or more first operations to be performed.

Optionally, the movable element comprises a capacitive sensing element configured to detect a user touching the movable element.

Optionally, when the movable element is in the second position and/or the third position the movable element may be depressed or touched in order to cause one or more first operations to be performed.

According to various embodiments the movable element may comprise a capacitive sensing element which is configured to detect being touched by a user.

Optionally, the one or more first operations may be selected from the group comprising: (i) confirmation of battery or charge status; (ii) commence a session of use; (iii) activate one or more heaters or heating regions; (iv) deactivate one or more heaters or heating regions; (v) pause operation; (vi) locking of the device; (vii) prevention of accidental or unintended operation of the device

Optionally, the user interface further comprises one or more visual indicators.

Optionally, when the movable element is in the first position the one or more visual indicators are visible to a user.

Optionally, when the movable element is in the second or third position at least one of the visual indicators is at least partially or fully covered or obscured by the movable element.

According to another aspect there is provided an aerosol provision device comprising a user interface as described above.

According to another aspect there is provided an aerosol provision device comprising: a housing; and a chamber for receiving an aerosol generating article; wherein the user interface is provided on the housing.

Optionally, the aerosol provision device further comprises: an aerosol generator; and a controller configured to cause the aerosol generator to operate in one or more heating modes.

The aerosol generator may comprise a resistive heating arrangement. Alternatively, the aerosol generator may comprise an inductive heating arrangement.

Optionally, when the movable element is moved from the first position to the second position the controller causes the aerosol generator to operate in a first heating mode.

Optionally, when the movable element is moved from the first position to the third position the controller causes the aerosol generator to operate in a second heating mode.

According to another aspect there is provided an aerosol provision system comprising: an aerosol provision device as described above; and an aerosol generating article. According to another aspect there is provided a method of generating aerosol comprising: at least partially inserting an aerosol generating article into an aerosol provision device as described above; and activating the aerosol provision device in order to generate aerosol from the aerosol generating article.

BRIEF DESCRIPTION OF THE DRAWINGS

Various embodiments will now be described, by way of example only, and with reference to the accompanying drawings, in which:

Fig. 1 shows an aerosol provision device located within a charging unit wherein a user display is provided on an upper portion of the charging unit and is visible to a user irrespective of the position of a sliding cover;

Fig. 2 shows a cross-sectional view of a portion of an aerosol provision device showing a heating element;

Fig. 3 shows a cross-sectional view of a portion of an aerosol provision device showing an aerosol generating article inserted within a cavity of the aerosol provision device and wherein the aerosol generating article is internally heated by a resistive heating arrangement;

Fig. 4 shows a perspective view of an upper portion of an aerosol provision system wherein a cover on the charging unit is in a first (open) position;

Fig. 5 shows a top view of the aerosol provision system shown in Fig. 4;

Fig. 6A shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element and wherein the user interface further comprises two LEDs (which are shown in a nonilluminated state) and Fig. 6B shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element and wherein the user interface further comprises two LEDs (which are shown in an illuminated state);

Fig. 7A shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element, and wherein the movable element is shown having been moved from a first position to a second position and Fig. 7B shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element, and wherein the movable element is shown having been moved from a first position to a third position; and

Fig. 8A shows a user interface for an aerosol provision device according to various embodiments wherein the movable element is shown in a central (first) position, Fig. 8B shows a user interface for an aerosol provision device according to various embodiments wherein the movable element may be pressed, depressed or touched in order to illuminate two LEDs to check on charge status, Fig. 8C shows a user interface for an aerosol provision device according to various embodiments wherein the movable element is shown having been moved from a first position to a third position to cover a LED window, wherein the movable element may be held for e.g. 3s to start a session and wherein haptic feedback may be provided, Fig. 8D shows a user interface for an aerosol provision device according to various embodiments wherein the movable element is shown having been moved from a first position to a second position to cover a LED window, wherein the movable element may be held for e.g. 3s to start a session and wherein haptic feedback may be provided, and Fig. 8E shows a user interface for an aerosol provision device according to various embodiments wherein the movable element is shown having been released either from a second position or a third position whereupon the movable element resumes a central (first) position and wherein two LEDs are shown in an illuminated state.

DETAILED DESCRIPTION

According to the present disclosure, a “non-combustible” aerosol provision system is one where a constituent aerosol generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.

In some embodiments, the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.

In some embodiments, the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol generating material is not a requirement.

In some embodiments, the non-combustible aerosol provision system is an aerosol generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system. In some embodiments, the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol generating materials, one or a plurality of which may be heated. Each of the aerosol generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine. In some embodiments, the hybrid system comprises a liquid or gel aerosol generating material and a solid aerosol generating material. The solid aerosol generating material may comprise, for example, tobacco or a non-tobacco product.

Typically, the non-combustible aerosol provision system may comprise a non-combustible aerosol provision device and a consumable for use with the non- combustible aerosol provision device.

In some embodiments, the disclosure relates to consumables comprising aerosol generating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.

In some embodiments, the non-combustible aerosol provision system, such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller. The power source may, for example, be an electric power source or an exothermic power source. In some embodiments, the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol generating material or to a heat transfer material in proximity to the exothermic power source.

In some embodiments, the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.

In some embodiments, the consumable for use with the non-combustible aerosol provision device may comprise aerosol generating material, an aerosol generating material storage area, an aerosol generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent.

Aerosol generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol generating material may, for example, be in the form of a solid, liquid or semi-solid (such as a gel) which may or may not contain an active substance and/or flavourants.

The aerosol generating material may comprise a binder and an aerosol former. Optionally, an active and/or filler may also be present. Optionally, a solvent, such as water, is also present and one or more other components of the aerosol generating material may or may not be soluble in the solvent. In some embodiments, the aerosol generating material is substantially free from botanical material. In particular, in some embodiments, the aerosol generating material is substantially tobacco free.

The aerosol generating material may comprise or be an aerosol generating film. The aerosol generating film may be formed by combining a binder, such as a gelling agent, with a solvent, such as water, an aerosol-former and one or more other components, such as active substances, to form a slurry and then heating the slurry to volatilise at least some of the solvent to form the aerosol generating film. The slurry may be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt% or 90 wt% of the solvent. The aerosol generating film may be a continuous film or a discontinuous film, such an arrangement of discrete portions of film on a support. The aerosol generating film may be substantially tobacco free.

The aerosol generating film may comprise or be a sheet, which may optionally be shredded to form a shredded sheet. The aerosol generating material may comprise one or more active substances and/or flavours, one or more aerosolformer materials, and optionally one or more other functional material.

An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol generating material to heat energy, so as to release one or more volatiles from the aerosol generating material to form an aerosol. In some embodiments, the aerosol generator is configured to cause an aerosol to be generated from the aerosol generating material without heating. For example, the aerosol generator may be configured to subject the aerosol generating material to one or more of vibration, increased pressure, or electrostatic energy.

A consumable is an article comprising or consisting of aerosol generating material, part or all of which is intended to be consumed during use by a user. A consumable may comprise one or more other components, such as an aerosol generating material storage area, an aerosol generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosolmodifying agent. A consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol generating material to generate aerosol in use. The heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.

A susceptor is a heating material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field. The susceptor may be an electrical ly-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material. The heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material. The susceptor may be both electrically- conductive and magnetic, so that the susceptor is heatable by both heating mechanisms. The aerosol provision device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.

Non-combustible aerosol provision systems may comprise a modular assembly including both a reusable aerosol provision device and a replaceable aerosol generating article. In some implementations, the non-combustible aerosol provision device may comprise a power source and a controller (or control circuitry). The power source may, for example, comprise an electric power source, such as a battery or rechargeable battery. In some implementations, the non-combustible aerosol provision device may also comprise an aerosol generating component. However, in other implementations the aerosol generating article may comprise partially, or entirely, the aerosol generating component.

Induction heating is a process in which an electrically-conductive object, referred to as a susceptor, is heated by penetrating the object with a varying magnetic field. The process is described by Faraday's law of induction and Ohm's law. An induction heater may comprise an electromagnet and a device for passing a varying electrical current, such as an alternating current, through the electromagnet. When the electromagnet and the object to be heated are suitably relatively positioned so that the resultant varying magnetic field produced by the electromagnet penetrates the object, one or more eddy currents are generated inside the object. The object has a resistance to the flow of electrical currents and when such eddy currents are generated in the object, their flow against the electrical resistance of the object causes the object to be heated. This process is called Joule, ohmic or resistive heating.

Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by penetrating the object with a varying magnetic field. A magnetic material can be considered to comprise many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such material, the magnetic dipoles align with the magnetic field. Therefore, when a varying magnetic field, such as an alternating magnetic field, for example as produced by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipoles changes with the varying applied magnetic field. Such magnetic dipole reorientation causes heat to be generated in the magnetic material.

When an object is both electrically-conductive and magnetic, penetrating the object with a varying magnetic field can cause both Joule heating and magnetic hysteresis heating in the object. Moreover, the use of magnetic material can strengthen the magnetic field, which can intensify the Joule heating.

A user interface for an aerosol provision device according to various embodiments will now be described in more detail.

Fig. 1 shows an aerosol generating system comprising an aerosol provision device 100 which is shown located within a cavity of a charging unit 101. The aerosol provision device 100 is arranged to generate aerosol from an aerosol generating article (not shown) which may be inserted, in use, into the aerosol provision device 100. The aerosol generating article comprises aerosol generating material.

The aerosol provision device 100 is an elongate structure, extending along a longitudinal axis. Additionally, the aerosol provision device 100 has a proximal end, which is the end closest to a user’s mouth when in use by the user to inhale the aerosol generated by the aerosol provision device 100. The aerosol provision device 100 also has a distal end which will be furthest from the user when in use. The proximal end may also be referred to as the mouth end. The aerosol provision device 100 also accordingly defines a proximal direction, which is directed towards the user when in use, i.e. in the direction from the distal end to the proximal end. Further, the aerosol provision device 100 also likewise defines a distal direction, which is directed away from the user when in use, i.e. in the direction from the proximal end to the distal end.

The aerosol provision device 100 may be removably inserted into the charging unit 101 in order to be charged. The charging unit 101 comprises a cavity for receiving the aerosol provision device 100. The aerosol provision device 100 may be inserted into the cavity via an opening. The cavity may comprise a longitudinal opening. One or more user-operable control elements or a user interface 106 which can be used to operate the aerosol provision device 100 may be provided on one side of the aerosol provision device 100. The user interface 106 may comprise a button.

According to various embodiments the user interface 106 may comprise a movable element 120 which will be described in more detail below. The user interface 106 may also comprise one or more light emitting diodes or other visual indicators. For example, as shown in Fig. 1 , according to an embodiment a first LED 130a may be provided on the user interface 106 on a first side of the movable element 120 and a second LED 130b may be provided on the user interface 106 on a second (different) side of the movable element 120. The LED may provide light signals in one, two, or three or more different colours. In embodiments, the different coloured light signals may indicate different functions and/or modes of operation. The aerosol provision device 100 may be received in the longitudinal opening provided in the charging unit 101.

As will be described in more detail below with reference to Figs. 2 and 3 and as described below, the aerosol provision device 100 may comprise a heating element (see e.g. heating element 202 as shown in Fig. 2).

Referring back to Fig. 1, the user interface 106 provided on the aerosol provision device 100 may comprise a movable element 120 which may be biased so as to assume, at rest, a first position. For example, as shown in Fig. 1 the movable element 120 may be biased so as to assume, at rest, a central position on the user interface 106. Embodiments are contemplated wherein the movable element 120 may be moved from a first (at rest) position to a second position in order to operate the aerosol provision device 100. For example, moving the movable element 120 against a bias so that the movable element assumes a second position may cause the aerosol provision device 100 to perform a standard or base mode of operation. When the aerosol provision device 100 is caused to perform a standard or base mode of operation then a first predetermined heating profile may be set by a controller for the heating element.

The movable element 120 may also be movable from the first position to a third different position against a bias in order to cause the aerosol provision device 100 to perform an enhanced or boost mode of operation. When the aerosol provision device 100 is caused to perform an enhanced or boost mode of operation then a second different predetermined heating profile may be set by the controller for the heating element. Accordingly, the heating profile set for the heating element may be altered. For example, in an enhanced or boost mode of operation a set or desired temperature for the heating element may be increased for a period of time. It is also contemplated that in an enhanced or boost mode of operation the overall session time may be reduced.

A session of use may be determined to relate to a period of time during which a user is enabled to take multiple puffs of aerosol generated from aerosol generating material without replacement or replenishment of the aerosol generating material.

The aerosol provision device 100 may be operable in at least a first (e.g. base) mode of operation and a second (e.g. boost) mode of operation. The modes of operation may be selectable by a user by moving the movable element 120 to a position that corresponds to the desired mode of operation.

According to various embodiments, a first desired mode of operation may commence when the movable element 120 is moved against a bias from a first position to a second position. It will be understood, that the act of moving the movable element from the first position to the second position may be sufficient so as to cause the aerosol provision device 100 to perform the first mode of operation. However, other embodiments are contemplated wherein the movable element 120 once moved from the first position to the second position may need to be depressed in order to cause the aerosol provision device 100 to perform the first mode of operation.

According to various embodiments, a second desired mode of operation may commence when the movable element 120 is moved against a bias from a first position to a third position. It will be understood, that the act of moving the movable element from the first position to the third position may be sufficient so as to cause the aerosol provision device 100 to perform the second mode of operation. However, other embodiments are contemplated wherein the movable element 120 once moved from the first position to the third position may need to be depressed in order to cause the aerosol provision device 100 to perform the second mode of operation.

According to various embodiments the movable element 120 may be moved by being translated or slid. According to embodiments the movable element 120 may be depressed in a z-direction (i.e. in a direction into body or housing of the aerosol provision device 100 as shown in Fig. 1) and translated or slid in an x-direction (as shown in Fig. 1), wherein the x-direction is substantially orthogonal to the z-direction. The movable element 120 may be biased by one or more springs. Alternatively, one or more magnets or electromagnets may be used to bias the movable element 120 so that at rest the movable element 120 assumes a first position. For example, the movable element 120 may be biased so as to assume a substantially central position on the user interface 106. Embodiments are contemplated wherein the movable element 120 may be biased by one or more resilient elements.

A heating element (such as heating element 202 shown and described in more detail below with reference to Fig. 2) may configured such that, in a first mode, the aerosol provision device 100 is ready for use a first period of time after the start of a session of use, and in a second mode the aerosol provision device 100 is ready for use a second period of time after the start of the session. The first period of time may be different from the second period of time. The aerosol provision device 100 may be ready for use at a time t1 after the start of a session of use in a first (base) mode of operation and may be ready for use at a time t2 after the start of a session of use in a second (boost) mode of operation, wherein t2 < t1. Providing an aerosol provision device 100 such as a tobacco heating product with a heating assembly that is operable in a plurality of modes (e.g. base mode and boost mode) gives more choice to the consumer, particularly where each mode is associated with a different maximum heater temperature. Moreover, such an aerosol provision device 100 is capable of providing different aerosols having differing characteristics, because volatile components in the aerosol generating material will be volatilised at different rates and concentrations at different heater temperatures. This allows a user to select a particular mode based on a desired characteristic of the inhalable aerosol, such as degree of tobacco flavour, nicotine concentration, and aerosol temperature. For example, modes in which the aerosol provision device 100 is ready for use more quickly (e.g. a second or “boost” mode) may provide a quicker first puff, or a greater nicotine content per puff, or a more concentrated flavour per puff. Conversely, modes in which the aerosol provision device 100 is ready for use at a later point in the session of use (e.g. a first or base mode) may provide a longer overall session of use, lower nicotine content per puff, and more sustained delivery of flavour.

The user interface 106 may comprise one or more lights, LEDs 130a, 130b or other visual indicator devices which may be configured to indicate the charging status of the aerosol provision device 100. For example, in the embodiment shown in Fig. 1 the user interface 106 may comprise two LEDs 130a, 130b. If zero LEDs 130a, 130b are displayed or are otherwise illuminated, then a low charge status of the aerosol provision device 100 may be indicated to a user. If one LED 130a, 130b is displayed or otherwise illuminated then an intermediate charge status of the aerosol provision device 100 may be indicated to a user. If two LEDs 130a, 130b are displayed or otherwise illuminated then a full or nearly full charge status of the aerosol provision device 100 may be indicated to a user.

The cavity of the charging unit 101 may have a cross-sectional profile which only permits that the aerosol provision device 100 to be inserted into the charging unit 101 in a single orientation. The outer profile of the aerosol provision device 100 may comprise an arcuate portion and a linear portion. The cross-sectional profile of the cavity provided in the charging unit 101 may also comprise a similar arcuate portion and a linear portion. The linear portion of the cross-sectional profile of the cavity may correspond with the longitudinal opening.

The aerosol provision device 100 comprises an opening leading into a heating chamber. A rod shaped aerosol generating article comprising aerosol generating material may be inserted through the opening and may be retained within the heating chamber of the aerosol provision device 100. The aerosol generating article may be heated by a heating element so that an aerosol or other inhalable medium may be generated which may then be inhaled by a user of the aerosol provision device 100.

The charging unit 101 may include a slidable cover 103. When the aerosol provision device 100 is inserted into the charging unit 101 in order to be recharged, the slidable cover 103 may be closed so as to cover the opening into the aerosol provision device 100. The charging unit 101 may include a user display 108.

As shown in Fig. 1 , a user display 108 may be provided on an upper portion of the charging unit 101 and may be visible to a user irrespective of the position of a sliding cover 103. However, other arrangements are contemplated wherein the user display may be concealed by the sliding cover 103 when the cover is in a first (open) position. The user display may then be revealed to a user when the sliding cover 103 is in a second (closed) position.

According to an embodiment the charging unit 101 may further comprise a cover 103 moveable between a first position and a second position, wherein: (i) the aerosol provision system further comprises a user display and wherein movement of the cover 103 between the first position and the second position activates and/or deactivates the user display; and/or (ii) the aerosol provision system further comprises a user interface and wherein movement of the cover 103 between the first position and the second position activates and/or deactivates the user interface.

Fig. 2 shows for illustrative purposes a cross sectional view of a portion of the aerosol provision device 100. The aerosol provision device 100 comprises a main housing 200 which forms a heating chamber 201. The main housing 200 may comprise a wall 200a which is a tubular wall 200a, and which may extend along the longitudinal axis of the aerosol provision device 100, and which surrounds the heating chamber 201. The wall 200a may, at least in part, define the heating chamber 201 of the aerosol provision device 100, as the volume which is enclosed within the tubular wall 200a. The wall 200a may be a shape other than tubular, and may be any shape which encloses (e.g. encircles) and defines a heating chamber 201 therewithin. A heating element 202 may be provided in a portion of the main housing 200 and the heating element 202 may extend or project into the heating chamber 201. The heating element 202 may comprise a base portion 202a which may be located in a recess provided in a portion of the main housing 200.

The heating element 202 may comprise a resistive heating element. The heating element 202 may comprise a pin which may be inserted, in use, into a distal end of an aerosol generating article which is received within the heating chamber 201 in order to internally heat the aerosol generating article. Alternatively, the heating element 202 may comprise a resistive blade heating element comprising a planar portion and a pointed portion. The pointed portion of the resistive blade heating element may be arranged to be inserted, in use, into a distal end of an aerosol generating article in order to internally heat the aerosol generating article.

According to another arrangement the heating element 202 may comprise an inductive heating element which may be arranged to internally heat an aerosol generating article. The inductive heating element may similarly comprise a pin or blade. It is contemplated that the heating element may form part of the aerosol generating article rather than being a component of the aerosol provision device 100.

The aerosol provision device 100 may further comprise a removal mechanism 204 which may be removably retained to the main housing 200 of the aerosol provision device 100. The removal mechanism 204 may be retained to the main housing 200 so that at least a portion of the removal mechanism 204 extends into the heating chamber 201. The removal mechanism 204 may comprise a longitudinal portion such as a tubular portion 207a and a base portion 207b. The base portion 207b may have an aperture 206 through which the heating element 202 may project. In order to retain the removal mechanism 204 to the main housing 200, the removal mechanism 204 may be pushed into engagement with the main housing 200 in the distal direction, i.e. towards the distal end of the main housing 200, until the removal mechanism 204 is able to move no further in the distal direction. In the following description, when the removal mechanism 204 is referred to as being retained to the main housing 200, this is when the removal mechanism 204 is engaged with the main housing 200, and can move no further in the distal direction.

Together, the tubular portion 207a and the base portion 207b may define and enclose an article chamber for receiving an aerosol generating article. The article chamber comprises an inner surface which may be configured to contact the aerosol generating article. The inner surface may comprise a longitudinally extending portion which is provided by the tubular portion 207a and an end portion which is provided by the base portion 207b. When an aerosol generating article is received in the heating chamber, the aerosol generating article may contact both the longitudinally extending portion of the inner surface and the end portion of the inner surface. In particular, the article chamber (i.e. the tubular portion 207a and the base portion 207b) may be configured to receive at least part of an aerosol generating article which is in the form of rod which is longitudinally extending and cylindrical, such that the longitudinal axis of the aerosol generating article is parallel to (and optionally in line with) the longitudinal axis of the aerosol provision device 100 when received in the article chamber.

The article chamber may also be referred to as a receiving portion. When the removal mechanism 204 is retained to the main housing 200, in use, the article chamber of the removal mechanism 204 may be arranged, at least partially, within the heating chamber 201. The heating element 202 may be arranged so as to project into the article chamber, through the aperture 206 provided in the base portion 207b of the removal mechanism 204. The removal mechanism 204 is therefore configured to receive at least a portion of the aerosol generating article in use.

The removal mechanism 204 may comprise a first magnet or a magnetisable material 208. The main housing 200 may comprise a second magnet or magnetisable material 209. In use, the removal mechanism 204 may be magnetically retained to the main housing 200 by the interaction of the first magnet or magnetisable material 208 and the second magnet or magnetisable material 209.

The removal mechanism 204 is fully detachable from the main housing 200. The removal mechanism 204 may be retained to the main housing 200 by a magnetic force of attraction between the first magnet or magnetisable material 208 and the second magnet or magnetisable material 209. The removal mechanism 204 may be detached from the main housing 200 by overcoming the magnetic force between the first magnet or magnetisable material 208 and the second magnet or magnetisable material 209. Alternatively, the removal mechanism 204 may be removably retained to the main housing 200 by other means. For example, the removal mechanism 204 may be configured to be removably retained to the main housing 200 by an interference fit with the main housing.

Fig. 3 shows a cross-sectional view of a portion of the aerosol provision device 100 and shows a main housing 200 with a heating element 202 extending into a heating chamber 201 and wherein a removal mechanism 204 is removably retained to the main housing 200. The removal mechanism 204 surrounds the heating element 202. An aerosol generating article 300 is shown located at least partly within the article chamber, and accordingly also within the heating chamber 201 , such that the aerosol generating article 300 is positioned onto the heating element 202.

When retained to the main housing 200, the outer cap portion 210 forms a portion of an outer housing of the aerosol provision device 100. The outer cap portion 210 may radially surround the tubular element 207a with a gap being provided between the internal element (e.g. the tubular element 207a) and the outer cap 210, the gap extending along a portion of the length of the removal mechanism 204, and being configured to receive a portion of the main housing 200, e.g. the wall 200a. The removal mechanism 204 may define an opening 203 to the article chamber, through which the aerosol generating article 300 may be inserted in a first direction in order to be inserted into the article chamber. This first direction is the distal direction, and may be parallel to the longitudinal axis of the aerosol provision device 100. In embodiments, the opening 203 may be configured to contact the aerosol generating article 300.

The first magnet or a magnetisable material 208 and the second magnet or magnetisable material 209 may be located in the removal mechanism 204 and the main housing 200 respectively, such that they are sufficiently proximate to one another to generate an attractive force between one another when the removal mechanism 204 is retained to the main housing 200, such that the removal mechanism 204 is magnetically retained to the main housing 200. For example, the first magnet or magnetisable material may be located at the proximal end of the portion of the main housing 200, e.g. at the proximal end of the wall 200a, which is inserted into the gap within the removal mechanism 204 (i.e. between the outer cap 210 and the internal element 207a, 207b) when the removal mechanism 204 is retained to the main housing 200, with the second magnet or magnetisable material 209 located at a corresponding location in the removable mechanism 204. Accordingly, when the removal mechanism 204 is engaged to the main housing 200 the second magnet or magnetisable material 209 is positioned sufficiently close to the first magnet or magnetisable material 208 such that the attraction between the first magnet or magnetisable material 208 and the second magnet or magnetisable material 209 keeps the removal mechanism 204 retained to the main housing 200.

In use, a user may insert or partially insert an aerosol generating article 300 through the opening 203 into the aerosol provision device 100. The aerosol generating article 300 is received within the tubular portion 207a of the removal mechanism 204 and hence the aerosol generating article 300 is received into the article chamber defined by the tubular portion 207a and the base portion 207b, and is additionally received into the heating chamber 201. The heating element 202 may be arranged to pierce a distal end of the aerosol generating article 300 so that the heating element 202 is located within the aerosol generating article 300 and is arranged to heat the aerosol generating article 300 via internal heating.

Once the aerosol generating article 300 has been inserted into the aerosol provision device 100 the user may then conduct a session of use. During the session of use the aerosol generating article 300 may be heated by the heating element 202. It will be understood that a session of use may last several minutes. For example, according to various embodiments a session of use may last 2-3 mins, 3-4 mins or 4-5 mins.

At the end of a session of use the user may wish to remove the spent aerosol generating article 300 from the aerosol provision device 100 and optionally replace the spent aerosol generating article 300 with a fresh aerosol generating article 300. According to an embodiment in order to remove a spent aerosol generating article 300 after a session of use, the user may detach the removal mechanism 204 from the main housing 200 by applying a force to the removal mechanism 204 in order to overcome the magnetic force of attraction between the first magnet 208 provided in the removal mechanism 204 and the second magnet provided in the main housing 200.

Fig. 4 shows a perspective view of the uppermost part of an aerosol provision system in accordance with various embodiments and Fig. 5 shows a top view of the aerosol provision system shown in Fig. 4.

According to various embodiments the charging unit 101 comprises a cover 103 which is moveable between a first position and a second position. With reference to Figs. 4 and 5 the cover 103 is shown in a first position which may correspond to an open position wherein the aerosol provision device 100 can be inserted or removed from the charging unit 101.

The cover 103 may be moved into a second (closed) position. In the first (open) position, the cover 103 may be positioned such that an opening 111 in the charging unit is accessible such that the aerosol provision device 100 can be inserted into and removed from a cavity 112 within the charging unit 101. In the embodiment shown in Figs. 4 and 5, the aerosol provision device 100 is shown within the cavity 112. The charging unit 101 may comprise a housing 113 which houses the components of the charging unit 101.

Accordingly, the charging unit 101 comprises a cover 103 which is moveable between a first (open) position and a second (closed) position. The aerosol provision device 100 further comprises a user display and/or a user interface 106a and movement of the cover may be arranged to activate and/or deactivate the user display and/or user interface 106a provided on the aerosol provision device 100.

Embodiments are contemplated such as shown in Fig. 1 wherein a user display 108 may be provided on the charging unit 101 and may be separate from a user interface 106 which may be provided on the aerosol provision device 100 (as shown in Fig. 1). However, other embodiments are contemplated wherein as shown in Fig. 4, a user interface and/or a user display 106a may be provided solely on the aerosol provision device 100. In the embodiment shown in Fig. 4 the user interface and/or user display 106a is provided on a side panel of the aerosol provision device 100 which is visible to a user when the aerosol provision device 100 is docked within the charging unit 101. Other embodiments are contemplated wherein a user interface and/or user display may be provided on the charging unit 101. It is contemplated, for example, that a user display may be provided on the charging unit 101 beneath the cover (or slider) 103 such that the user display is concealed when the cover is in an open position as shown in Figs. 4 and 5 but is revealed or visible to a user when the cover 103 is in a closed position.

According to embodiments a user interface 106,106a may be provided, for example, on the aerosol provision device 100. Movement of the cover 103 may be arranged to activate and/or deactivate the user interface 106,106a.

For example, when the cover 103 is in the second (closed) position then the aerosol provision system may be arranged to deactivate the user interface 106,106a provided on the aerosol provision device 100 in order to prevent accidental activation of the aerosol provision device 100.

The cover 103 may be slid by a user from the second (closed) position back to the first (open) position and when the cover 103 is returned to the first (open) position the user interface 106,106a on the aerosol provision device 100 may be activated enabling a user to control various operations of the aerosol provision device 100.

According to embodiments at least a portion of the user display 108 may be located on the charging unit 101 as shown in Fig. 1. However, other embodiments are contemplated as shown in Fig. 4 wherein at least a portion of the user display 106a is located on the aerosol provision device 100. According to an embodiment the user display 106a may be provided solely on the aerosol provision device 100.

In a mode of operation a user display 108 provided on the charging unit 101 (see Fig. 1) or a user display 106a provided on the aerosol provision device 100 (see Fig. 4) may be arranged to indicate the charge state of the charging unit 101. For example, with reference to Fig. 1 a user display 108 provided on the charging unit 101 may comprise a series of concentric circles wherein the number of concentric circles illuminated indicates the charge state of the charging unit 101. Alternatively, the user display 108 may comprise a circle divided into four quadrants wherein the number of quadrants illuminated may indicate the charge state of the charging unit 101. Other embodiments are also contemplated wherein the colour of the user display 108 may indicate the charge state of the charging unit 101. For example, the colour red may be used to indicate a low charge state, the colour yellow may be used to indicate an intermediate charge state and the colour green, blue or white may be used to indicate a full or nearly full charge state.

With reference to Fig. 4, a user display 106a may additionally or alternatively be provided on the aerosol provision device 100. According to an embodiment the user display 106a may comprise a sequence or array of two, three, four or more than four lights or LEDs. For example, according to an embodiment two lights or LEDs may be provided and the lights or LEDs may be progressively illuminated in order to indicate the charge state. Zero lights or LEDs illuminated may indicate a low charge state (or a charge status of < 33%), one light or LED illuminated may indicate an intermediate charge state (or a charge state of 33-66%) and two lights or LEDs may indicate a full or nearly full charge state (or a charge state of > 66%). Other embodiments are also contemplated wherein the colour of the user display 106a may indicate the charge state of the charging unit 101. For example, the colour red may be used to indicate a low charge state, the colour yellow may be used to indicate an intermediate charge state and the colour green, blue or white may be used to indicate a full or nearly full charge state.

In a mode of operation, a user display 108 provided on the charging unit 101 or a user display 106,106a on the aerosol provision device 100 may be arranged to indicate the charge state of the aerosol provision device 100. For example, with reference to Fig. 1 the user display 108 may comprise a series of concentric circles wherein the number of concentric circles illuminated indicates the charge state of the aerosol provision device 100. Alternatively, the user display 108 may comprise a circle divided into four quadrants wherein the number of quadrants illuminated may indicate the charge state of the aerosol provision device 100. Other embodiments are also contemplated wherein the colour of the user display 108 may indicate the charge state of the aerosol provision device 100. For example, the colour red may be used to indicate a low charge state, the colour yellow may be used to indicate an intermediate charge state and the colour green, blue or white may be used to indicate a full or nearly full charge state.

With reference to Fig. 4, the user display 106a may be provided on the aerosol provision device 100. According to an embodiment the user display 106a may comprise a sequence or array of two, three, four or more than four lights or LEDs. For example, according to an embodiment two lights or LEDs may be provided and the lights or LEDs may be progressively illuminated in order to indicate the charge state. Zero lights or LEDs illuminated may indicate a low charge state (or a charge status of < 33%), one light or LED illuminated may indicate an intermediate charge state (or a charge state of 33- 66%) and two lights or LEDs may indicate a full or nearly full charge state (or a charge state of > 66%). Other embodiments are also contemplated wherein the colour of the user display 106a may indicate the charge state of the aerosol provision device 100. For example, the colour red may be used to indicate a low charge state, the colour yellow may be used to indicate an intermediate charge state and the colour green, blue or white may be used to indicate a full or nearly full charge state.

Other embodiments are contemplated wherein a user display is not provided on the aerosol provision device 100. For example, according to an embodiment a user display may be provided solely on the charging unit 101. According to another embodiment no user display may be provided at all i.e. no user display is provided on either the aerosol provision device 100 or the charging unit 101.

In a mode of operation a user display 108 provided on the charging unit 101 and/or a user display 106a provided on an aerosol provision device 100 may be arranged to indicate an error or fault status of either the charging unit 101 and/or the aerosol provision device 100.

In a mode of operation a user display 108 provided on the charging unit 101 and/or a user display 106a provided on an aerosol provision device 100 may be arranged to indicate the time left of a session of use.

According to various embodiments the first position comprises an open position in which the aerosol provision device 100 can be inserted into, and removed from the cavity of the charging unit 101. According to various embodiments the second position comprises a closed position in which an upper portion of the cavity of the charging unit 101 is closed by the cover 103.

The cover 103 may be configured to moved (e.g. slid or pivoted) between the first and second positions. The charging unit 101 may comprise a housing having one or more rails or grooves and the cover 103 may comprise one or more tabs or projections arranged to engage the one or more rails or grooves. Alternatively, the charging unit 101 may comprise a housing having one or more tabs or projections and the cover 103 may comprises one or more rails or grooves and wherein the one or more tabs or projections engage the one or more rails or grooves.

With reference to Figs. 4 and 5, the cover 103 may be configured to slide between the first and second positions. Sliding of the cover 103 may be achieved by any suitable arrangement. The charging unit 101 may comprise grooves 114. The grooves 114 may be arranged on an inside edge of the housing 113 as shown in Figs. 4 and 5. The cover 103 may comprise tabs 116 which engage the grooves 114. Engagement of the tabs 116 with the grooves 114 may constrain the cover 103 such that it is able to slide relative to the main housing 113.

Other embodiments are envisaged wherein the charging unit 101 comprises rails instead of grooves 114. Similarly, the cover 103 may comprise projections, having a form other than tabs 116, which may engage the grooves 114 or rails. The grooves 114 or rails may be arranged on the cover 103 instead of the housing 113, and the tabs 116 or projections may be arranged on the housing 113 or other suitable part of the charging unit 101 , rather than the cover 103. The grooves 114 and/or rails together with the tabs 116 and/or projections, irrespective of their location, act to constrain movement of the cover 103. Any number of grooves 114, rails, tabs 116 or projections may be provided. Other embodiments are also contemplated whereby the cover 103 moves between first and second positions in any other suitable manner, for example by rotation and/or pivotal movement.

Fig. 6A shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element and wherein the user interface further comprises two LEDs (which are shown in a nonilluminated state) and Fig. 6B shows a user interface for an aerosol provision device according to various embodiments wherein the user interface comprises a movable element and wherein the user interface further comprises two LEDs (which are shown in an illuminated state).

With reference to Fig. 6A, the user interface 106 is shown. The user interface 106 comprises a movable element 120. According to various embodiments the movable element 120 may comprise a movable button. The user interface 106 may also comprises one or more light emitting diodes (LEDs) or other visual indicator. For example, as shown in Fig. 6A, according to an embodiment the user interface 106 may comprise two LEDs 130a, 130b.

The movable element 120 may be biased to a first position 160 by a biasing device. The movable element 120 may be biased by a biasing device such as one or more springs and/or one or more magnets or electromagnets. According to various embodiments the movable element 120 may be biased by one or more resilient elements.

When the movable element 120 is positioned in the first position 160, the two LEDs 130a, 130b may be visible to a user. In the first position 160, the movable element 120 may be depressed. However, it is not essential that the movable element 120 may be depressed and other embodiments are contemplated wherein the movable element 120 may comprise a touch button. For example, the movable element 120 may comprise a capacitive sensing element. In response to being depressed and/or touched, the movable element 120 may result in an operation being performed on the aerosol provision device. For example, in response to pressing or touching the movable element 120, one or more LEDs 130a, 130b may illuminate (as shown in Fig. 6B) to indicate charge status of the aerosol provision device a user.

According to various embodiments pressing or touching the movable element 120 when the movable element is in the first position 160 may cause one or more of the following operations to be performed: (i) confirmation of battery or charge status; (ii) commence a session of use; (iii) activate one or more heaters or heating regions; (iv) deactivate one or more heaters or heating regions; (v) pause operation; (vi) locking of the device; and (vii) prevention of accidental or unintended operation of the device.

With reference to Fig. 7A, the movable element 120 may be movable from the first position 160 to a second position 162 in the direction of the arrow shown in Fig. 7A. The movable element 120 may be translatable or slidable between the first position 160 to the second position 162. In the second position 162, the movable element 120 may at least partially cover or conceal the first LED 130a. In response to movement of the movable element 120 from the first position 160 to the second position 162, a first operation may be performed. For example, a session of use of the aerosol provision device may be initiated. The aerosol provision device 100 may be configured to operate in a first, standard or base mode of operation.

According to various embodiments the first, standard or base mode of operation may involve a controller setting the aerosol generator: (i) a target operating temperature T1 a during a first time period; (ii) a target operating temperature T2a during a second time period; (ii) a target operating temperature T3a during a third time period; and (iv) a target operating temperature T4a during a fourth time period. According to various embodiments the first, standard or base mode of operation may involve a controller setting the aerosol generator to perform a heating mode of operation wherein the session lasts a first session time ti_a and has a ramp up time t2a. According to various embodiments the first, standard or base mode of operation may involve a controller setting the aerosol generator to perform a heating mode of operation wherein the maximum temperature is T5a.

The movable element 120 may be held in the second position 162 by a user. Upon release of the movable element 120 by a user, the movable element 120 is biased back to the first position 160 by the biasing means.

In embodiments, a session of use may only be initiated if the movable element 120 is held in the second position 162 by a user for a predetermined amount of time. For example, the movable element 120 may be held in the second position 162 for 3-5s. In response, a session of use may be initiated in a first, standard or base mode. This may prevent the aerosol provision device from being activated accidentally.

Fig. 7A shows a user interface for an aerosol provision device according to various embodiments wherein the user interface 106 comprises a movable element 120, and wherein the movable element 120 is shown having been moved from a first position 160 to a second position 162 and Fig. 7B shows a user interface 106 for an aerosol provision device according to various embodiments wherein the user interface 106 comprises a movable element 120, and wherein the movable element 120 is shown having been moved from a first position 160 to a third position 164.

With reference to Fig. 7B, the movable element 120 may be slidable from the first position 160 to a third position 164, in the direction of the arrow shown in Fig. 7B. The third position 164 may be opposite the second position 162, such that the second and third positions are each on opposite sides of first position 160.

Movement of the movable element 120 from the first position to the third position 164 may be in the opposite direction to movement of the movable element 120 from the first position 160 to the second position 162. In the third position, 164, the movable element may at least partially cover or conceal the second LED 130b.

The movable element 120 may be held in the third position 164 by a user and upon release, the movable element 120 may be biased back to the first position 160 by the biasing device. In response to the movable element 120 being moved to the third position 164, a second operation may be performed. For example, a mode for a session of use may be activated. For example, the device 100 may operate in a second or boost mode of operation.

According to various embodiments the second or boost mode of operation may involve a controller setting the aerosol generator: (i) a target operating temperature T1b during a first time period; (ii) a target operating temperature T2b during a second time period; (ii) a target operating temperature T3b during a third time period; and (iv) a target operating temperature T4b during a fourth time period. According to various embodiments the second or boost mode of operation may involve a controller setting the aerosol generator to perform a heating mode of operation wherein the session lasts a second session time t and has a ramp up time t2b. According to various embodiments the second or boost mode of operation may involve a controller setting the aerosol generator to perform a heating mode of operation wherein the maximum temperature is T5b.

According to various embodiments T1a T1b and/or T2a T2b and/or T3a T3b and/or T4a T4b. According to various embodiments T5a T5b. According to various embodiments ti_a t . According to various embodiments t2a t t2b.

After the movable element 120 has been translated from the first position 160 to the second position 162 or the third position 164 and been biased back to the first position 160, a further movement of the movable element 120 for a second time to the same of the second or third positions 162,164 may cause the first or second operation respectively to be stopped. According to embodiments a first movement of the movable element 120 to the second position 162 may cause a session of use to commence. Subsequent movement of the movable 120 to the third position 164 may cause the mode of operation to be changed (e.g. to a boost mode) or alternatively may cause a heating mode of operation to pause or stop.

Fig. 8A shows a user interface 106 for an aerosol provision device according to various embodiments wherein the movable element 120 is shown in a central (first) position and two LEDs 130a, 130b are not illuminated.

Fig. 8B shows a user interface 106 for an aerosol provision device according to various embodiments wherein the movable element 120 may be pressed, depressed or touched in order to illuminate two LEDs 130a, 130b to check on charge status of the aerosol provision device.

Fig. 8C shows a user interface 106 for an aerosol provision device according to various embodiments wherein the movable element 120 is shown having been moved from a first position to a third position to cover a LED window, wherein the movable element 120 may be held for e.g. 3s to start a session and wherein haptic feedback may also be provided to a user.

Fig. 8D shows a user interface 106 for an aerosol provision device according to various embodiments wherein the movable element 120 is shown having been moved from a first position to a second position to cover a LED window, wherein the movable element 120 may be held for e.g. 3s to start a session and wherein haptic feedback may be provided to a user.

Fig. 8E shows a user interface 106 for an aerosol provision device according to various embodiments wherein the movable element 120 is shown having been released either from a second position or a third position whereupon the movable element 120 resumes a central (first) position and wherein two LEDs 130a, 130b are shown in an illuminated state.

According to various embodiments, the second and third positions may not be opposed to each other. For example, the movable element 120 may be movable from the first position to the second position in a first direction. The movable element 120 may be further movable from the second position to the third position in the same first direction. The second position may be spaced from the first position by a first distance. The third position may be spaced from the first position by a second, different distance.

The first and/or second operations may comprise one or more of: (i) confirming battery or charge status; (ii) commencing a session of use; (iii) activating one or more heaters or heating regions; (iv) deactivating or more heaters or heating regions; (v) pausing operation; (vi) locking of the device; (vii) preventing of accidental or unintended operation of the device.

With reference to the situation as shown in Figs. 8C and 8D wherein one of the LEDs 130a, 130b is obscured by the movable element 120, the LED 130a;130b which is not obscured may be arranged to flash ON and OFF one or more times in order to indicate to a user that a mode of operation has been selected, commenced, paused or stopped.

In embodiments, the LEDs 130a, 130b may not be arranged to be obscured by the movable element 120. For example, the LEDs 130a and 130b may be arranged to be adjacent to the movable element 120 when it is in the second or third position such that the LEDs 130a, 130b are visible at all times.

According to embodiments, the movable element 120 may be translated or slid in a y-direction perpendicular to the direction of the arrows shown in Figs. 7A and 7B. The y-direction is perpendicular to the x-direction and the z-direction shown in Fig. 1 The movable element 120 may be movable to fourth and fifth positions on opposing sides of the central position 160.

In embodiments, the movable element 120 may be movable from the first position to the fourth position in a first direction. The movable element 120 may be further movable from the fourth position to the fifth position in the same first direction.

The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only, and are not exhaustive and/or exclusive. It is to be understood that advantages, embodiments, examples, functions, features, structures, and/or other aspects described herein are not to be considered limitations on the scope of the invention as defined by the claims or limitations on equivalents to the claims, and that other embodiments may be utilised and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of, appropriate combinations of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. In addition, this disclosure may include other inventions not presently claimed, but which may be claimed in future.

Claims

1. A user interface for an aerosol provision device, the user interface comprising a movable element, wherein the movable element is biased to assume a first position and wherein the movable element is movable to assume at least a second different position.

2. A user interface as claimed in claim 1 , wherein the movable element may be moved by being translated or slid.

3. A user interface as claimed in claim 1 or 2, wherein the movable element may be depressed in a z-direction and translated or slid in an x-direction, wherein the x-direction is substantially orthogonal to the z-direction.

4. A user interface as claimed in claim 1, 2 or 3, wherein the movable element is biased by: (i) one or more springs; and/or (ii) one or more magnets or electromagnets; and/or (iii) one or more resilient elements.

5. A user interface as claimed in any preceding claim, wherein the movable element is movable to a third different position.

6. A user interface as claimed in claim 5, wherein the movable element is movable in a first direction from the first position to the second position and wherein the movable element is movable in a second different direction from the first position to the third position.

7. A user interface as claimed in claim 6, wherein the first and second directions are opposed to each other.

8. A user interface as claimed in claim 5, wherein the movable element is movable in a first direction a first distance from the first position to the second position and wherein the movable element is movable in the first direction a second different distance from the first position to the third position.

9. A user interface as claimed in any preceding claim, wherein when the movable element is in the first position the movable element may be depressed or touched in order to cause one or more first operations to be performed.

10. A user interface as claimed in any preceding claim, wherein the movable element comprises a capacitive sensing element configured to detect a user touching the movable element.

11. A user interface as claimed in any preceding claim, wherein when the movable element is in the second position and/or the third position the movable element may be depressed or touched in order to cause one or more first operations to be performed.

12. A user interface as claimed in claim 9, 10 or 11, wherein the one or more first operations are selected from the group comprising: (i) confirmation of battery or charge status; (ii) commence a session of use; (iii) activate one or more heaters or heating regions; (iv) deactivate one or more heaters or heating regions; (v) pause operation; (vi) locking of the device; (vii) prevention of accidental or unintended operation of the device

12. A user interface as claimed in any preceding claim, further comprising one or more visual indicators.

13. A user interface as claimed in claim 12, wherein when the movable element is in the first position the one or more visual indicators are visible to a user.

14. A user interface as claimed in claim 12 or 13, wherein when the movable element is in the second or third position at least one of the visual indicators is at least partially or fully covered or obscured by the movable element.

15. An aerosol provision device comprising: a user interface as claimed in any preceding claim.

16. An aerosol provision device as claimed in claim 15, wherein the aerosol provision device comprises: a housing; and a chamber for receiving an aerosol generating article; wherein the user interface is provided on the housing.

17. An aerosol provision device as claimed in claim 15 or 16, further comprising: an aerosol generator; and a controller configured to cause the aerosol generator to operate in one or more heating modes.

18. An aerosol provision device as claimed in claim 17, wherein when the movable element is moved from the first position to the second position the controller causes the aerosol generator to operate in a first heating mode.

19. An aerosol provision device as claimed in claim 17 or 18, wherein when the movable element is moved from the first position to the third position the controller causes the aerosol generator to operate in a second heating mode.

20. An aerosol provision system comprising: an aerosol provision device as claimed in any of claims 15-19; and an aerosol generating article.

21. A method of generating aerosol comprising: at least partially inserting an aerosol generating article into an aerosol provision device as claimed in any of claims 15-19; and activating the aerosol provision device in order to generate aerosol from the aerosol generating article.