Aerosol provision device

Abstract

To provide an aerosol provision device capable of notifying a user that the device is ready for use.SOLUTION: An aerosol provision device 100 comprises: a heater assembly configured to heat aerosol generating material; an indicator assembly; an input interface 112 configured to receive an input for selecting a heating mode from a plurality of operating modes; and a controller. The controller is configured to detect the input for selecting the heating mode and, in response to detecting the input: (i) determine a selected heating mode based on the input, (ii) cause the heater assembly to begin heating the aerosol generating material according to the selected heating mode, and (iii) cause the indicator assembly to indicate that the device is ready for use within a predetermined period of time after causing the heater assembly to begin heating the aerosol generating material.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to an aerosol supply device and a method of operating the aerosol supply device. Background

[0002] Smoking articles such as cigarettes and cigars burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without combustion. Examples of such products are heating devices that release compounds by heating a material without burning it. This material may be, for example, tobacco or other non-tobacco products, and may or may not contain nicotine. Summary

[0003] According to a first aspect of the present disclosure, there is provided an aerosol supply device comprising: a heating assembly configured to heat an aerosol-generating material; an indicator assembly; an input interface configured to receive an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode; a control device; and wherein the control device is configured to detect an input for selecting a heating mode; in response to detecting the input, determine the selected heating mode based on the input; start heating the aerosol-generating material in the heating assembly according to the selected heating mode; cause the indicator assembly to indicate that the device is ready for use within a predetermined time after starting to heat the aerosol-generating material in the heating assembly; and an aerosol supply device is provided.

[0004] According to a second aspect of the present disclosure, there is provided a method of operating an aerosol supply device, Detecting an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode; In response to detecting the input, Determining the selected heating mode based on the input; Starting heating of the aerosol-generating material in the heating assembly of the device according to the selected heating mode; Causing an indicator assembly to indicate that the device is ready for use within a predetermined time after starting heating of the aerosol-generating material in the heating assembly; Performing steps; A method is provided that includes.

[0005] According to a third aspect of the present disclosure, an aerosol supply device, An inductor coil that generates a variable magnetic field; A susceptor configured to heat the aerosol-generating material and capable of being heated by the penetration of the variable magnetic field; An indicator assembly; Starting the generation of a variable magnetic field in the inductor coil; Causing the indicator assembly to indicate that the device has finished operating or is about to finish operating within a predetermined time after starting heating of the aerosol-generating material in the inductor coil; A control device configured to perform; An aerosol supply device is provided that includes.

[0006] Further features and advantages of the present invention will become apparent from the following description of preferred embodiments of the present invention, which is shown by way of example only with reference to the accompanying drawings.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13A

Figure 13B

Figure 13C

Figure 13D

Figure 13E

Figure 14

Figure 15

[0008] As used herein, the term "aerosol generating material" includes materials that typically provide volatile components upon heating, usually in the form of an aerosol. The aerosol generating material includes any tobacco-containing material, such as one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. Also, other non-tobacco products may be included as aerosol generating materials, and depending on the product, may or may not contain nicotine. The aerosol generating material may be in the form of, for example, a solid, liquid, gel, wax, etc. Also, the aerosol generating material may be, for example, a combination or mixture of materials. Also, the aerosol generating material may sometimes be known as a "smoking material".

[0009] Devices are known that form an aerosol that can be inhaled, usually without burning or combusting the aerosol generating material, by heating the aerosol generating material to volatilize at least one component thereof. Such devices may be described as "aerosol generating devices", "aerosol supply devices", "non-combustion heating devices", "tobacco heating product devices", or "tobacco heating devices" or the like. Similarly, there are so-called e-cigarette devices that vaporize an aerosol generating material, usually in liquid form (which may or may not contain nicotine). The aerosol generating material may be in the form of, for example, a rod, cartridge, or cassette that can be inserted into the device, or may be provided as part of it. The heater that heats and volatilizes the aerosol generating material may be provided as a "permanent" part of the device.

[0010] An aerosol supply device can receive and heat an article containing an aerosol-generating material. In this context, an "article" is a component that comprises or contains an aerosol-generating material during use and is heated to volatilize the aerosol-generating material and optionally other components in use. After a user inserts an article into the aerosol supply device, the aerosol supply device may be heated to generate an aerosol that the user can later inhale. The article may be of a predetermined or specific size configured to be placed, for example, within a heating chamber of a device sized to receive the article.

[0011] A first aspect of the present disclosure defines an aerosol supply device comprising an input interface configured to receive an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode. Accordingly, a user can select a heating mode by interacting with the input interface or by the operation of the input interface. The device further comprises a control device configured to detect an input for selecting a heating mode, determine a selected heating mode based on the input in response to the detection of the input, and initiate heating of the aerosol-generating material in a heating assembly according to the selected heating mode. The device further comprises an indicator assembly configured to indicate that the device is ready for use within a predetermined time after initiating heating of the aerosol-generating material in the heating assembly.

[0012] Accordingly, the device starts heating the aerosol-generating material only after a specific heating mode has been selected. Then, after a predetermined time has elapsed since the heating assembly started heating, the device notifies (by indication) the user that the device is ready for use.

[0013] Accordingly, this device can operate in two or more different heating modes. For example, in each heating mode, it is possible to heat the aerosol-generating material to different temperatures and / or heat the aerosol-generating material for different lengths of time. Also, this device may be adapted to operate in other non-heating modes. For example, this device may be adapted to operate in a setting mode. The heating mode and the non-heating mode may be more generally known as the operating modes of this device. By using the same input interface, it may be possible to receive an input for selecting the setting mode from a plurality of operating modes. Accordingly, this device starts heating only when the heating mode is selected. This makes it possible to improve the energy efficiency of the device.

[0014] The control device preferably starts heating the aerosol-generating material in the heating assembly according to the selected heating mode substantially simultaneously with the determination of the selected heating mode. For example, these can occur simultaneously. This reduces the time the user has to wait before starting to use the device. In other examples, there may be a slight delay between the above steps, such as less than 1 second, less than 0.5 second, less than 0.1 second, less than 0.01 second, or less than 0.001 second.

[0015] The aerosol supply device includes an indicator assembly that indicates to the user that the device is ready for the user to inhale the aerosol, so that the user can recognize that the device is ready for use. This can avoid making the user wait longer than necessary until inhaling the aerosol, which reduces the consumption of the aerosol and the user's satisfaction. This predetermined time may vary for each heating mode.

[0016] "Ready for use" may mean that the aerosol-generating material has reached a desired / sufficient temperature, that the aerosol-generating material has generated a desired / sufficient amount of aerosol, or that the user has taken the first "puff" with the device and is able to inhale the aerosol generated by the aerosol-generating material.

[0017] The reference to "within a predetermined time" includes examples where the indicator provides an indication at a predetermined time. For example, the characteristics of an article used in combination with the aerosol supply device and the heat applied by the aerosol supply device may be known so that the time until "ready for use" can be determined in advance. Examples also include determining whether the article is ready for use by monitoring some of the characteristics of the aerosol supply device and / or the article. For example, a temperature sensor that measures at or above a predetermined temperature may be used to indicate that the device is ready for use.

[0018] The heating assembly may be an induction heating assembly. For example, the heating assembly may comprise one or more inductor coils and a susceptor. The heating assembly may comprise one or more coils for heating a heating component. In another example, the heating assembly may be a resistive heating assembly. For example, one or more components for heating the aerosol-generating material may be resistively heated.

[0019] In some examples, the predetermined time is less than approximately 30 seconds, less than approximately 20 seconds, less than approximately 15 seconds, or less than approximately 10 seconds after starting heating of the heating assembly. In other examples, the predetermined time is less than approximately 60 seconds, less than approximately 50 seconds, or less than approximately 40 seconds.

[0020] Certain heating assemblies, such as induction heating assemblies, have been found to be capable of heating an aerosol-forming material to a suitable temperature in a short time when compared to other types of heating assemblies. Accordingly, a user of the device may be able to inhale an aerosol using the device within a predetermined time, for example, less than about 20 seconds. Since the specific heating assembly can rapidly heat the aerosol-forming material, when the device indicates that it is ready, the aerosol-forming material will have released a sufficient amount of aerosol.

[0021] As described above, the device may be configured to operate in one of a first mode and a second mode. When operating in the first mode, a component of the heating assembly is heated to a first temperature, and when operating in the second mode, a component of the heating assembly is heated to a second temperature. The second temperature may be higher than the first temperature.

[0022] The first temperature may be from about 240°C to about 260°C, and the second temperature may be from about 270°C to about 290°C. The temperature of the aerosol-forming material may be slightly lower than the temperature of the heating component.

[0023] The first mode may be known as the default mode, and the second mode may be known as the boost mode. In the second mode, for example, a larger quantity or higher concentration of aerosol may be generated than in the first mode.

[0024] In some examples, the predetermined time is determined by the selected heating mode. In some examples, in the second mode, the control device is configured to heat the heating component of the heating assembly to a higher temperature than in the first mode. The predetermined time is shorter than the predetermined time when the device is operating in the first mode.

[0025] The aforementioned predetermined time is the first predetermined time when the device is operating in the first mode and the second predetermined time when the device is operating in the second mode, and the second predetermined time is different from the first predetermined time. In a specific example, the second predetermined time is less than the first predetermined time. For example, when the aerosol generating material is heated to a high temperature in the second mode, it may release aerosol more rapidly than when it is heated to a low temperature. This may mean that the device is quickly ready for use.

[0026] In some examples, the indicator assembly may be configured to indicate the selected heating mode. In some examples, this indication may be the same as the indication that the device is ready for use. Thus, the type of indication used to indicate that the device is ready for use may be based on the selected heating mode. In other examples, the indication of the selected heating mode may be made after the heating mode is selected and before the device is ready for use. Thus, two separate indications may be made. The first indication may indicate the selected heating mode, and the second indication may indicate that the device is ready for use. This may enable the user to cancel the heating if they inadvertently select the wrong mode. In a specific example, the first indication is provided by a tactile component and the second indication is provided by a visual component. This is useful because the user may hold the device when selecting the heating mode, while the device may be placed on a surface while waiting for the device to be ready for use. The visual indication is more easily confirmable when the user is no longer holding the device.

[0027] Also, the input interface may be known as a user interface. The input interface may be a button, a touch screen, a dial, a knob, or a wireless connection to a mobile device (e.g., Bluetooth (registered trademark)). According to this interface, the user can select an operation mode from a plurality of operation modes. The operation mode may include one or more heating modes and / or setting modes. When an input is received, the input interface can send one or more signals indicating the input to the control device. Based on this (one or more) signal, the control device can determine the selected operation mode, such as the selected heating mode or setting mode.

[0028] In a specific example, the input interface includes a button, and the above input includes a signal indicating that the button has been released. The control device can receive the input from the input interface. Thereby, the heating assembly starts heating the aerosol-generating material if the button is released only once. While the user is pressing the button, the heating assembly may not heat the aerosol-generating material. Therefore, the above predetermined time starts when the user releases the button. The button may be a software button or a hardware button. The above signal may be a single signal or two or more signals.

[0029] In a particular example, the input further includes a signal indicating the length of time the button was pressed, and the control device is configured to detect an input for selecting a heating mode in response to (i) receiving a signal indicating that the button has been released and (ii) determining that the length of time the button was pressed is equal to or greater than a threshold time. The signal indicating the length of time the button was pressed may be part of the same signal indicating that the button has been released, or it may be a separate signal. For example, the signal indicating the length of time, i.e., the length of time the button was pressed and held, may be measured by the control device as the time between the button press signal and the button release signal. Thereby, in some examples, the heating assembly may be configured to start heating only when the button is pressed for a specific length of time equal to or greater than the threshold time. In a particular example, the threshold time is 3 seconds or 5 seconds. If the time from when the button is held until it is released is less than the threshold time, the heating assembly may be configured not to start heating. Thereby, it is possible to avoid heating the aerosol-generating material when there is a risk that the user may accidentally press the button and consume energy. For this reason, when the control device determines that the length of time the button was pressed is less than the threshold, the control device determines not to cause the heating assembly to start heating.

[0030] The control device may be configured to determine the selected heating mode based on the length of time the button was pressed. In one example, the device is configured to operate in a first mode when the length of time the button was pressed is equal to or greater than a first threshold time and less than a second threshold time, and to operate in a second mode when the length of time the button was pressed is equal to or greater than the second threshold time. For example, the first threshold time may be 3 seconds, and the second threshold time may be 5 seconds. Thereby, the user can select different modes using a single button. Selecting multiple modes with a single interface simplifies the operation of the device and can reduce the number of components. Reducing the number of components makes the device lighter and reduces the number of parts that can lead to breakage or malfunction.

[0031] In some examples, the indicator assembly indicates that the heating assembly has started heating the aerosol - generating material. This may prevent the user from attempting to restart the operation of the device.

[0032] In one configuration, the indicator assembly comprises a visual component configured to provide a visual indication that the device is ready for use. For example, the visual component may comprise an LED, a plurality of LEDs, a display, an e - ink display, or a mechanical element that displays one or more patterns by movement. In some examples, the visual component is configured to emit light.

[0033] In a particular example, the indicator assembly comprises a plurality of LEDs, and the number of lit LEDs indicates the timing when the device is ready for use. For example, when the heating assembly first starts heating the aerosol - generating material, a first number of LEDs light up, and when the device is ready for use, a second number of LEDs light up, and the second number may be greater than the first number. The first number of LEDs may be zero. The second number may be all the LEDs. Thus, the indicator assembly can indicate how close the device is to being ready for use. The LEDs may be configured to light up sequentially at the predetermined time.

[0034] In a specific example, there are four LEDs, and these LEDs light up sequentially at the predetermined time. For example, the first LED may be configured to light up 5 seconds after heating the aerosol-generating material in the heating assembly, or the second LED may be configured to light up 10 seconds after heating the aerosol-generating material in the heating assembly, or the third LED may be configured to light up 15 seconds after heating the aerosol-generating material in the heating assembly, or the fourth LED may be configured to light up 20 seconds after heating the aerosol-generating material in the heating assembly. The lighting of the last LED may indicate that the device is ready for use. The LED that lights up earlier may remain lit when the next LED lights up. Alternatively, when the subsequent LED lights up, the previous LED may turn off.

[0035] In another example, the indicator assembly includes a tactile component configured to provide tactile feedback indicating that the device is ready for use. For example, the tactile component may be a tactile motor that vibrates the device when the device is ready for use. In some examples, the tactile component provides tactile feedback according to a first pattern after the heating assembly starts heating the aerosol-generating material, and provides tactile feedback according to a second pattern when the device is ready for use. The first pattern may continue until the device is ready for use or may terminate after a short period of time. Thus, the tactile component can also indicate that the device has started heating the aerosol-generating material so that the user can recognize that the device is operating.

[0036] In another example, the indicator assembly includes an auditory indicator configured to emit a sound indicating that the device is ready for use. The auditory indicator may be a transducer, a buzzer, a bell, or the like.

[0037] In a particular example, the indicator assembly comprises a tactile component and a visual component. The tactile component may be configured to provide a tactile indication that the heating assembly has started heating the aerosol-generating material. The visual component may be configured to provide a visual indication that the device is ready for use.

[0038] In some examples, the indicator assembly is configured to indicate the time remaining until the device finishes operating. For example, the indicator assembly may provide different indications depending on the time remaining until the device finishes operating. The device may "end operation" when power supply to the heating assembly stops (i.e., when active heating stops or when maintaining a temperature), or when the temperature / quantity of the aerosol is considered to have fallen below an acceptable range level (which may be a few seconds after power supply to the heating assembly stops).

[0039] In a particular example, the indicator assembly includes a plurality of LEDs, and the number of lit LEDs indicates the time remaining until the device finishes operating. For example, when the device is operating, a first number of LEDs are lit, and when the device has finished operating, a second number of LEDs are lit, and the second number may be less than the first number. The second number may be, for example, zero. The first number may be all the LEDs. Thus, the LEDs may perform a "countdown" as the device approaches the end.

[0040] In a specific example, there are multiple LEDs, such as four LEDs, and these LEDs are sequentially turned off as the end of the heating session approaches. For example, all four LEDs may be lit 20 seconds before the device finishes operating. When there are 15 seconds remaining, one of the four LEDs may be turned off. When there are 10 seconds remaining, another LED may be turned off. When there are 5 seconds remaining, another LED may be turned off, and at 0 seconds remaining, all four LEDs may be turned off.

[0041] In another example, the tactile component may provide different tactile feedback patterns according to the remaining time. For example, the tactile component may provide tactile feedback indicating that a certain amount of time remains. The type of tactile feedback may indicate the remaining time. For example, when 20 seconds remain, there may be short and low-intensity tactile feedback, and when only 5 seconds or 0 seconds remain, the tactile feedback may be longer and more intense.

[0042] In yet another example, the auditory indicator may provide different sounds according to the remaining time. For example, the pitch, tone, sound pattern, etc. may change over time.

[0043] In another example, the control device is configured to cause the indicator assembly to display that the device has finished operating or is about to finish operating within a second predetermined time after starting to heat the aerosol-generating material in the heating assembly. Thereby, the indicator assembly may indicate the moment when the operation has ended or is about to end. For example, when the device has finished operating, the visual indicator may no longer provide any visual indication. In a specific example, when the device has finished operating or is about to finish operating, all the LEDs may be turned off. This indicates to the user that the suction from the device should be stopped. The second predetermined time is longer than the above-mentioned predetermined time. The second predetermined time may be, for example, 3 minutes, 3 minutes and 30 seconds, or 4 minutes. The second predetermined time may be determined by the heating mode.

[0044] In a specific example, the heating assembly includes an inductor coil that generates a varying magnetic field and a susceptor configured to heat the aerosol-generating material and that can be heated by the penetration of the varying magnetic field. The control device is configured to start heating the aerosol-generating material in the heating assembly according to a selected heating mode by causing the inductor coil to generate a varying magnetic field. Therefore, the susceptor may be a component of the heating assembly that is heated. For example, in the first mode, the inductor coil may be configured to heat the susceptor to a first temperature. For example, in the second mode, the inductor coil may be configured to heat the susceptor to a second temperature.

[0045] The inductive heating system has been found to be capable of heating the aerosol-generating material to a suitable temperature in a short time when compared with other types of heating assemblies such as a resistive heating assembly.

[0046] In some examples, the inductive coil is the first inductive coil, and the device further comprises a second inductive coil that generates a second variable magnetic field. In a particular configuration, the first inductive coil is adjacent to the second inductive coil in a direction along the longitudinal axis, and the control device is configured to cause the second inductive coil to generate a second variable magnetic field after indicating to the indicator assembly that the device is ready for use. During use, an aerosol is drawn towards the proximal end of the device along the flow path of the device, and the first inductive coil is disposed closer to the proximal end of the device than the second inductive coil.

[0047] Thus, the device may comprise two inductive coils, with the first inductive coil being close to the mouth end of the device. Thus, the first inductive coil heats the aerosol-generating material close to the user's mouth. First, the first inductive coil operates. The second inductive coil is operable later. For example, the control device may cause the second inductive coil to generate a second magnetic field at a third predetermined time after causing the first inductive coil to generate a first magnetic field. The third predetermined time may be, for example, approximately 40 seconds to approximately 60 seconds. The third predetermined time may depend on the mode in which the device is operating.

[0048] The first inductive coil may continue to generate a first magnetic field while the second inductive coil generates a second magnetic field.

[0049] In a particular example, the first inductive coil has a first length, the second inductive coil has a second length, and the first length is shorter than the second length. A shorter length results in less aerosol-generating material being heated and less aerosol being generated, thus suppressing the phenomenon known as "hot puff".

[0050] In another aspect, a method of operating the aerosol supply device described above is provided. This method includes detecting an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode, and in response to detecting the input, (i) determining the selected heating mode based on the input, (ii) starting heating of the aerosol generating material in the heating assembly of the device according to the selected heating mode, and (iii) causing an indicator assembly to indicate that the device is ready for use within a predetermined time after starting heating of the aerosol generating material in the heating assembly.

[0051] In the second mode, the method may include heating the heating component of the heating assembly to a higher temperature than in the first mode. The predetermined time is shorter than the predetermined time when the device is operating in the first mode.

[0052] The step of detecting an input for selecting a heating mode may include detecting that a button has been released. The step of detecting an input for selecting a heating mode may further include detecting the length of time the button has been pressed, and the selected heating mode is determined based on the length of time the button has been pressed.

[0053] This method may further include causing an indicator assembly to indicate that the device has ended or is about to end operation within a predetermined time after starting heating of the aerosol generating material in the heating assembly.

[0054] Although this method has been described with respect to any type of heating assembly, it is of course also applicable to devices equipped with induction heating assemblies.

[0055] In another aspect, the aerosol supply device includes an inductor coil that generates a varying magnetic field, a susceptor configured to heat an aerosol-generating material and capable of being heated by the penetration of the varying magnetic field, an indicator assembly, and a control device. The control device is configured to cause the inductor coil to start generating a varying magnetic field and to cause the indicator assembly to indicate that the device has finished operating or is about to finish operating within a predetermined time after starting to heat the aerosol-generating material in the inductor coil. Thereby, when the device has finished operating or is about to finish operating, the user can be notified. Thereby, when the amount, concentration, or temperature of the generated aerosol becomes insufficient, the user's continued use of the device is stopped.

[0056] In another aspect, a method of operating an aerosol supply device includes generating, in an inductor coil of the aerosol supply device, a varying magnetic field that heats a susceptor, and causing an indicator assembly of the aerosol supply device to indicate that the device has finished operating or is about to finish operating within a predetermined time after starting to heat an aerosol-generating material in the inductor coil assembly.

[0057] Although this method has been described with respect to an induction heater, it is of course applicable to devices provided with a non-induction heating assembly. For example, this device may include a heating assembly configured to heat the aerosol-generating material instead of an inductor coil.

[0058] In a specific example, the indicator assembly includes one or more light-emitting diodes (LEDs) and an outer member disposed above the one or more LEDs. The outer member includes a plurality of openings visible from the outside of the aerosol supply device. Electromagnetic radiation (e.g., in the form of visible light) passes through the plurality of openings and is visible to the user. At least a part of the outer member may constitute the outer surface of the device.

[0059] The indicator assembly may further include a light shaping member disposed between one or more LEDs and an outer member. The light shaping member may include one or more light conductors that guide light therethrough to produce a specific pattern or design. The light shaping member may include an opaque region configured to block a portion of the light from the LED. The light shaping member may include a transparent or translucent region through which light can pass. Alternatively, the light shaping member may include an aperture through which light can pass. A light shaping member that includes an opaque region and a transparent or translucent region may be more robust than a light shaping member having an aperture. Further, the translucent region may further enable light diffusion / reduction.

[0060] In some examples, the light shaping member is formed by two or more outer covering components. For example, the opaque and transparent / translucent regions may be formed by two outer covering components.

[0061] In one example, the light shaping member includes an opaque region extending around its perimeter / periphery / outer periphery. This can prevent light from leaking to the outer periphery of the outer member. The opaque region may be an outer ring.

[0062] In one example, the opaque region is colored black or dark gray.

[0063] In one example, the opaque region is in a cross shape.

[0064] In a specific example, the device includes four LEDs, and these four LEDs are respectively disposed below the light shaping member and are arranged between adjacent opaque regions such that the light from the LEDs is separated into four quadrants. The opaque regions are configured to prevent light leakage from one quadrant to an adjacent quadrant.

[0065] This device is preferably a tobacco heating device, also known as a non-combustion heating device.

[0066] Figure 1 shows an example of an aerosol supply device 100 that generates an aerosol from an aerosol generating medium / material. Generally, the device 100 may be adapted to heat a replaceable article 110 containing an aerosol generating medium to generate an aerosol or other inhalable medium that can be inhaled by a user of the device 100.

[0067] The device 100 includes a housing 102 (in the form of an outer cover) that surrounds and houses various components of the device 100. The device 100 has an opening 104 at one end through which the article 110 can be inserted and heated by a heating assembly. In use, the article 110 may be fully or partially inserted into the heating assembly and heated by one or more components of the heating assembly.

[0068] The device 100 of this example includes a first end member 106 having a lid 108 that can close the opening 104 by moving relative to the first end member 106 when the article 110 is not in a predetermined position. In Figure 1, the lid 108 is shown in an open configuration, but the cap 108 can also be moved to a closed configuration. For example, the user may slide the lid 108 in the direction of arrow "A".

[0069] Also, the device 100 may include a button or switch and may be equipped with an input interface 112 that operates the device 100 when pressed. For example, the user may turn on the device 100 by operating the input interface 112.

[0070] In addition, the device 100 may include an electrical connector / component such as a socket / port 114 that can receive a cable to charge the battery of the device 100. For example, the socket 114 may be a charging port such as a USB charging port. In some examples, the socket 114 may be used for data transfer between the device 100 and another device such as a computer device as an addition or alternative to the above.

[0071] Figure 2 shows the device 100 of FIG. 1 with the outer cover 102 removed and no article 110 present. The device 100 defines a longitudinal axis 134.

[0072] As shown in FIG. 2, 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 and second end members 106, 116 together at least partially define the end face 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. Also, the edge of the outer cover 102 may define a part of the end face. Also, in this example, the lid 108 defines a part of the upper surface of the device 100.

[0073] The end of the device closest to the opening 104 is considered to be the proximal end (or mouth end) of the device 100 because it is closest to the user's mouth during use. During use, the user inserts the article 110 into the opening 104, operates the user control 112 to start heating the aerosol-generating material, and utilizes the aerosol generated in the device. Thereby, the aerosol flows through the device 100 along the flow path towards the proximal end of the device 100.

[0074] The other end of the device farthest from the opening 104 is considered to be the distal end of the device 100 because it is the end farthest from the user's mouth during use. When the user utilizes the aerosol generated in the device, the aerosol flows in a direction away from the distal end of the device 100.

[0075] Device 100 further includes a power source 118. The power source 118 may be a battery such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium batteries (such as lithium-ion batteries), nickel batteries (such as nickel-cadmium batteries), and alkaline batteries. The battery is electrically coupled to the heating assembly and supplies power as needed, and heats the aerosol-generating material under the control of a control device (not shown). In this example, the battery is connected to a central support portion 120 that holds the battery 118 in a predetermined position. The central support portion 120 may also be known as a battery support or a battery carrier.

[0076] The device further includes at least one electronic device module 122. The electronic device module 122 may include, for example, a printed circuit board (PCB). The PCB 122 may support at least one control device such as a processor and a memory. Further, the PCB 122 may include one or more electrical tracks that electrically connect various electronic components of the device 100. For example, battery terminals may be electrically connected to the PCB 122 so that power can be distributed throughout the device 100. Also, the socket 114 may be electrically coupled to the battery via an electrical track.

[0077] In exemplary device 100, the heating assembly is an induction heating assembly and includes various components for heating the aerosol-forming material of article 110 by an induction heating process. Induction heating is a process of heating a conductor (such as a susceptor) by electromagnetic induction. The induction heating assembly may include an induction element (e.g., one or more inductor coils) and a device for passing a varying current, such as 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 suitably disposed relative to the induction element and generates eddy currents inside the susceptor. Since the susceptor has an electrical resistance to the eddy currents, the susceptor is heated by Joule heating due to the flow of the eddy currents against this resistance. Further, when the susceptor contains a ferromagnetic material such as iron, nickel, or cobalt, heat may also be generated by magnetic hysteresis loss in the susceptor, i.e., by the varying orientation of magnetic dipoles in the magnetic material as a result of alignment with the varying magnetic field. In induction heating, heat is generated inside the susceptor, for example, as compared to heating by conduction, enabling rapid heating. Furthermore, since no physical contact is required between the induction heater and the susceptor, the degrees of freedom in configuration and application are increased.

[0078] The induction heating assembly of exemplary device 100 includes a susceptor construct 132 (referred to herein as the "susceptor"), a first inductor coil 124, and a second inductor coil 126. The first and second inductor coils 124, 126 are made of a conductive material. In this example, the first and second inductor coils 124, 126 are formed of a Litz wire / cable wound in a helical shape to provide helical inductor coils 124, 126. The Litz wire comprises a plurality of individual wires that are individually insulated and form a single wire by an integral twist. The Litz wire is designed to suppress the skin effect loss of the conductor. In exemplary device 100, the first and second inductor coils 124, 126 are formed of a copper Litz wire having a rectangular cross-section. In other examples, the Litz wire may have a cross-section of other shapes, such as circular.

[0079] The first inductor coil 124 is configured to generate a first alternating magnetic field that heats a first portion of the susceptor 132, and the second inductor coil 126 is configured to generate a second alternating magnetic field that heats 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 structure 132 may comprise a single susceptor or two or more separate susceptors. The ends 130 of the first and second inductor coils 124, 126 are connectable to the PCB 122.

[0080] Of course, in some examples, the first and second inductor coils 124, 126 may have at least one characteristic that is different from each other. For example, the first inductor coil 124 may have at least one characteristic that is different from the second inductor coil 126. More specifically, in one example, the first inductor coil 124 may have an inductance value that is different from the second inductor coil 126. In FIG. 2, the first and second inductor coils 124, 126 have different lengths such that the portion of the first inductor coil 124 wound around the susceptor 132 is smaller than the second inductor coil 126. For this reason, the first inductor coil 124 may have a different number of turns than the second inductor coil 126 (assuming that the spacing between individual turns is substantially the same). In yet another example, the first inductor coil 124 may be composed of a different material than the second inductor coil 126. In some examples, the first and second inductor coils 124, 126 may be substantially identical.

[0081] In this example, the first inductor coil 124 and the second inductor coil 126 are wound in opposite directions. This can be useful when the two inductor coils operate at different timings. For example, after the first inductor coil 124 first operates to heat the first portion of the article 110, the second inductor coil 126 may operate to heat the second portion of the article 110. Winding the coils in opposite directions helps to suppress the current induced in the non-operating coil when used in conjunction with a particular type of control circuit. In FIG. 2, the first inductor coil 124 is a right-handed helix and the second inductor coil 126 is a left-handed helix. However, in another embodiment, the inductor coils 124, 126 may be wound in the same direction, or the first inductor coil 124 may be a left-handed helix and the second inductor coil 126 may be a right-handed helix.

[0082] Since the susceptor 132 of this example is hollow, it defines a receptacle for receiving the aerosol-generating material. For example, the article 110 can be inserted into the susceptor 132. In this example, the susceptor 120 is tubular with a circular cross-section.

[0083] The device 100 of FIG. 2 is generally tubular and further includes a heat-insulating member 128 that can at least partially surround the susceptor 132. The heat-insulating member 128 may be composed of any heat-insulating material such as, for example, plastic. In this particular example, the heat-insulating member is composed of polyetheretherketone (PEEK). The heat-insulating member 128 can help to insulate the various components of the device 100 from the heat generated in the susceptor 132.

[0084] Furthermore, the heat insulating member 128 can support all or part of the first and second inductor coils 124, 126. For example, as shown in FIG. 2, the first and second inductor coils 124, 126 are arranged around the heat insulating member 128 and are in contact with the radially outer surface of the heat insulating member 128. In some examples, the heat insulating member 128 is not adjacent to the first and second inductor coils 124, 126. For example, a small gap may exist between the outer surface of the heat insulating member 128 and the inner surfaces of the first and second inductor coils 124, 126.

[0085] In a specific example, the susceptor 132, the heat insulating member 128, and the first and second inductor coils 124, 126 are coaxial around the central longitudinal axis of the susceptor 132.

[0086] FIG. 3 is a partial cross-sectional side view of the device 100. In this example, an outer cover 102 is present. The rectangular cross-sectional shapes of the first and second inductor coils 124, 126 are more clearly visualized.

[0087] The device 100 further includes a support portion 136 that engages with one end of the susceptor 132 and holds the susceptor 132 in a predetermined position. The support portion 136 is connected to the second end member 116.

[0088] The device may also include a second printed wiring board 138 associated within the input interface 112.

[0089] The device 100 further includes a second lid / cap 140 and a spring 142 arranged toward the distal end of the device 100. The spring 142 enables access to the susceptor 132 by opening the second lid 140. The user may clean the susceptor 132 and / or the support portion 136 by opening the second lid 140.

[0090] Device 100 further includes an extension chamber 144 that extends from the proximal end of susceptor 132 toward the opening 140 of the device. At least a portion of a retaining clip 146 that holds adjacent to an article 110 received within device 100 is disposed within extension chamber 144. Extension chamber 144 is connected to end member 106.

[0091] FIG. 4 is an exploded view of device 100 of FIG. 1 with outer cover 102 omitted.

[0092] FIG. 5A of FIG. 5 shows a partial cross-section of device 100 of FIG. 1. FIG. 5B of FIG. 5 shows an enlarged view of a region of FIG. 5A. FIGS. 5A and 5B show an article 110 received within susceptor 132, which article 110 is dimensioned such that its outer surface is adjacent to the inner surface of susceptor 132. Thereby, heating is most efficient. The article 110 of the present example includes an aerosol-generating material 110a. The aerosol-generating material 110a is disposed within susceptor 132. Also, the article 110 may include other components such as a filter, a packaging material, and / or a cooling structure.

[0093] FIG. 5B shows that the outer surface of susceptor 132 is separated from the inner surfaces of inductor coils 124, 126 by a distance 150 as measured in a direction perpendicular to the longitudinal axis 158 of susceptor 132. In a particular example, the distance 150 is approximately 3 mm to 4 mm, approximately 3 mm to 3.5 mm, or approximately 3.25 mm.

[0094] FIG. 5B shows that the outer surface of heat-insulating member 128 is separated from the inner surfaces of inductor coils 124, 126 by a distance 152 as measured in a direction perpendicular to the longitudinal axis 158 of susceptor 132. In a particular example, the distance 152 is approximately 0.05 mm. In another example, the distance 152 is substantially 0 mm such that inductor coils 124, 126 are adjacent to and in contact with heat-insulating member 128.

[0095] In one example, the susceptor 132 has a wall thickness 154 of approximately 0.025 mm to 1 mm or approximately 0.05 mm.

[0096] In one example, the susceptor 132 has a length of approximately 40 mm to 60 mm, approximately 40 mm to 45 mm, or approximately 44.5 mm.

[0097] In one example, the insulating member 128 has a wall thickness 156 of approximately 0.25 mm to 2 mm, approximately 0.25 mm to 1 mm, or approximately 0.5 mm.

[0098] FIG. 6 is a front view of the device 100. As briefly described above, this device may include an input interface 112. In some examples, the user may operate the device 100 by interacting with the input interface 112. Proximate to the input interface 112, an indicator assembly may be disposed, which may indicate to the user the occurrence of one or more events, such as when the device is ready for use and / or when the device has finished operating. Also, the indicator assembly may indicate the mode in which the device 100 is operating.

[0099] FIG. 6 shows an outer member 202 disposed above (i.e., in front of) the indicator assembly. In other examples, the indicator assembly may be disposed at other locations on the device. In the examples described herein, the indicator assembly includes visual components configured to provide a visual display. The visual components include a plurality of LEDs that emit electromagnetic radiation such as light to indicate a particular event to the user. Of course, the indicator assembly may include a tactile component or an auditory indicator as an addition or alternative to this. In this device 100, the indicator assembly includes visual components and tactile components.

[0100] The outer member 202 constitutes the outermost component of the input interface 112. The user may interact with the device 100 by pressing the outer member 202. As will be described in more detail below, the outer member 202 includes a plurality of openings 204 through which light from a plurality of LEDs can pass.

[0101] FIG. 7 shows the housing 102 (also known as the outer cover) of the device 100. The housing 102 defines an opening 206. An outer member (not shown in FIG. 7) can be disposed within the opening 206. For example, the outer member may be disposed in the same plane as the outer surface of the housing 102, or may protrude above or below the outer surface of the housing 102.

[0102] FIG. 8 shows the device 100 with the housing 102 in an undefined position. In this example, the outer member 202 is attached to the optical forming member 210 via an adhesive layer 208. The adhesive of the adhesive layer 208 may cover part or all of the inner surface of the outer member 202. A sealing member 212 extends around the optical forming member 210.

[0103] In some examples, the outer member 202, the adhesive layer 208, the optical forming member 210, and the sealing member 212 may be omitted from the device.

[0104] FIG. 9 shows the device 100 with the outer member 202, the optical forming member 210, and the sealing member 212 removed. The device 100 includes a visual component with four LEDs 214, but in other examples, the number of LEDs, such as one or more LEDs 214, may be different. The LEDs 214 are disposed below the outer member 202 such that light travels from the LEDs 214 through the plurality of openings 204 formed in the outer member 202. Thus, the light also passes through the optical forming member 210 and the adhesive layer 208. Also, one or more additional components may be disposed between the LEDs 214 and the outer member 202.

[0105] In the example of FIG. 9, the LED 214 is arranged around the input interface 112 configured to detect interaction from the user. For example, the user may press or operate the outer member 202, which is detected by the input interface 112. The input interface 112 may be a button or a switch that operates when the user applies a force to the outer member 202. In another example, the input interface 112 and the outer member 202 may be part of a capacitance sensor that detects the timing when the user touches the outer member 202.

[0106] FIG. 10 is a front view of the outer member 202. As described above, the outer member 202 defines a plurality of openings 204. In this example, each of the openings 204 constitutes a slot having a certain length and a certain width.

[0107] The openings 204 are preferably arranged around / periphery / outer periphery side of the outer member 202. As shown in FIG. 10, the openings 204 are arranged closer to the periphery of the outer member 202 than the center of the outer member 202. Thereby, even when the user presses the outer member 202, the openings 204 can be exposed (and thus the light can be confirmed). The user may be more likely to press / hold the center of the outer member 202 rather than the edge of the outer member 202.

[0108] FIG. 11 is an exploded view showing a part of the components of the device 100. As described above, the device 100 may include an adhesive layer 208 disposed between the LED 214 and the outer member 202. In the illustrated example, the adhesive layer has the same shape and size as the outer member 202 such that the adhesive covers the openings 204. And the light can pass through the adhesive layer 208 before passing through the openings 204. Therefore, the adhesive layer 208 can be transparent or translucent. The translucent adhesive layer 208 can help to diffuse the light from the LED so that "hot spots" are avoided. A hot spot is a region where the light intensity is higher than the surrounding region.

[0109] In some examples, the outer member 202 is attached to the light shaping member 210 via an adhesive layer 208. In the illustrated example, the light shaping member 210 includes one or more opaque regions 230 (which can be integrally joined) and one or more translucent or transparent regions 232 (also integrally joinable). The translucent or transparent regions 232 may be known as light conductors since they guide light passing through the light shaping member 210. Light from the LED 214 can pass through the translucent or transparent regions 232 but is blocked by the opaque regions 230. Thus, the opaque regions 230 reduce the intensity of the light passing through some of the openings 204 (i.e., the openings 204 disposed above the opaque regions 230). The opaque regions 230 and the translucent or transparent regions 232 may be regions of a single integral component, or one or both of these regions may be treated to have their own optical properties. In another example, the opaque regions 230 and the translucent or transparent regions 232 are separate components with an outer coating.

[0110] In this example, the light shaping member 210 includes an opaque region 230 extending around its perimeter / periphery / outer circumference. This can prevent light from leaking out of the outer periphery of the outer member 202. The opaque region may be, for example, an outer ring.

[0111] In this example, the device 100 includes four LEDs 214, and these LEDs 214 are each disposed between adjacent opaque regions 230 such that the light from the LEDs is separated into four quadrants. In other words, the LEDs 214 may be disposed below the transparent or translucent regions. By separating the light into different regions, different displays can be provided to the user. For example, the number of lit quadrants can indicate a specific event to the user. Thus, the light may be blocked by the opaque regions so that the light cannot pass through part of the opening.

[0112] In some examples, the regions between the opaque regions 230 are openings and thus do not include a translucent or transparent material.

[0113] A sealing member 212 such as a gasket is disposed between the optical forming member 210 and the LED 214. The outer diameter of the sealing member 212 is larger than the outer diameters of the outer member 202 and the optical forming member 210. In some examples, the sealing member 212 is adjacent to the inner surface of the housing 102 to prevent the intrusion of liquid and dust into the device 100.

[0114] Indication that the device is ready for use FIG. 12 shows a system including a control device 302 (one or more processors, etc.), a heating assembly 304, an indicator assembly 306, and an input interface 112. The control device 302 is communicatively coupled to the heating assembly 304, the indicator assembly 306, and the input interface 112 via one or more wired or wireless connections (shown by dashed lines).

[0115] The control device 302 may be disposed, for example, on the PCB 122. The control device 302 can control the operation of the device 100, such as heating the aerosol-generating material in the heating assembly 304. In some examples, the control device 302 receives a signal from the input interface 112 and, in response, controls the heating assembly 304 and the indicator assembly 306. The user can operate the device by providing an input to the input interface 112. In a specific example, a heating mode is selected via the input interface 112.

[0116] As described above, the indicator assembly 306 can indicate the occurrence of one or more events to the user. To cause the indicator assembly 306 to display, the control device 302 can send a signal or command to the indicator assembly 306. In the examples of FIGS. 6 to 11, the indicator assembly 306 includes a visual component including a plurality of LEDs 214. Naturally, the following description is also applicable to other types of indicator assemblies 306.

[0117] In the following example, the heating assembly 304 comprises one or more inductor coils that generate one or more magnetic fields to heat the susceptor. The control device 302 can cause a varying magnetic field to be generated in the inductor coil(s) of the device 100. For example, the control device 302 can send one or more signals to the inductor coil(s). When the inductor coil(s) generate a varying magnetic field, the susceptor 132 is heated, thereby heating the aerosol-forming material near the susceptor 132. Of course, the following description can also apply to other types of heating assemblies 304.

[0118] The control device 302 may cause the susceptor to be heated in the inductor coil(s) to approximately 240°C to approximately 290°C. In a particular example, the device is configured to operate in one of a first mode and a second mode, and these first and second modes are heating modes. In one example, when the device is operating in the first (default) mode, the control device 302 may cause the first region of the susceptor 132 to be heated in the first inductor coil 124 to approximately 240°C to approximately 260°C (such as approximately 250°C). In another example, the device may be operating in the second (boost) mode, and the control device 302 may cause the first region of the susceptor 132 to be heated in the first inductor coil 124 to approximately 270°C to approximately 290°C (such as approximately 280°C).

[0119] The second inductor coil 126 may be configured to generate a second magnetic field later during a heating session. For example, the second inductor coil 126 may be configured to generate the second magnetic field approximately 60 seconds to approximately 130 seconds after the first inductor coil 124 generates the first magnetic field. The second inductor coil is configured to heat a second region of the susceptor 132. In some examples, both inductor coils 124, 126 operate simultaneously.

[0120] After the first inductor coil 124 starts heating the susceptor 132, the first region of the susceptor 132 can reach the desired temperature within 2 seconds. However, it may take a longer time for heat to penetrate into the aerosol-forming material. For example, it may take up to 60 seconds for the aerosol-forming material to approach the temperature of the susceptor 132. Due to the efficiency of inductive heating, the aerosol generated in the first 10 - 30 seconds can still maintain a state suitable for inhalation even though the aerosol-forming material is not fully heated.

[0121] Therefore, the control device 302 may be configured to cause the device indicator assembly 306 to display that the device is ready for use within a predetermined time after causing the first inductor coil to generate an alternating magnetic field. For example, the predetermined time may be less than approximately 30 seconds, less than approximately 20 seconds, less than approximately 15 seconds, or less than approximately 10 seconds after causing the inductor coil to generate an alternating magnetic field. The control device 302 may start a timer at the moment when it causes the inductor coil to generate an alternating magnetic field, which may be at the same moment when the control device 302 determines the selected heating mode.

[0122] In a specific example, the predetermined time is determined by the mode in which the device is operating. For example, when the device is operating in the second boost mode, the predetermined time is shorter than the predetermined time when the device is operating in the first default mode. This is presumably because the aerosol-forming material is heated to a high temperature in a shorter time in the second boost mode, meaning that the device is ready for use more quickly.

[0123] In one example, the LED 214 emits light indicating the timing when the device 100 is ready for use. For example, when the device 100 is ready for use (i.e., after the predetermined time has elapsed), one or all of the LED 214s may be turned on.

[0124] In a specific example, the number of lit LEDs 214 indicates the timing when the device is ready for use. For example, when all the LEDs 214 are lit, the device may be ready for use.

[0125] Figure 13A shows the outer member 202 disposed above the four LEDs 214. Since none of the LEDs 214 are lit, there is no light passing through the opening 204. At this point, since the user may not have pressed the input interface 112 yet, the control device 302 has not received an input to select the heating mode from the input interface 112, nor has it generated an alternating magnetic field in the inductor coil 124. When an input is detected, the control device 302 determines the selected heating mode based on this input and starts generating an alternating magnetic field in the inductor coil 124. Accordingly, the heating assembly 304 starts heating the aerosol-generating material according to the selected heating mode. Also, Figure 13A shows the outer member 202 at a point in time after the user has pressed the input interface 112 but before any of the LEDs 214 turn on.

[0126] Figure 13B shows the outer member 202 at a first threshold time after the control device 302 has generated an alternating magnetic field in the inductor coil 124. The first threshold time may be, for example, 5 seconds. At this point, one of the LEDs is lit, and the light passes through some of the openings 204, lighting one quadrant of the outer member 202.

[0127] Figure 13C shows the outer member 202 at a second threshold time after the control device 302 has generated an alternating magnetic field in the inductor coil 124. The second threshold time may be, for example, 10 seconds. At this point, two of the LEDs are lit, and the light passes through some of the openings 204, lighting two quadrants of the outer member 202.

[0128] FIG. 13D shows the outer member 202 at a third threshold time after the control device 302 generates a varying magnetic field in the inductor coil 124. The third threshold time may be, for example, 15 seconds. At this point, three of the LEDs are lit, and light passes through some of the openings 204, lighting three quadrants of the outer member 202.

[0129] FIG. 13E shows the outer member 202 at a fourth threshold time after the control device 302 generates a varying magnetic field in the inductor coil 124. The fourth threshold time may be, for example, 20 seconds. At this point, all four of the LEDs are lit, and light passes through most of the openings 204, lighting four quadrants of the outer member 202. Thus, when all four LEDs are lit, the indicator assembly 306 indicates that the device is ready for use. This can occur within 30 seconds after generating a magnetic field in the inductor coil 124. Preferably, this occurs within 20 seconds.

[0130] In another example, the first threshold time may be approximately 3 seconds to approximately 5 seconds, the second threshold time may be approximately 6 seconds to approximately 10 seconds, the third threshold time may be approximately 9 seconds to approximately 15 seconds, and the fourth threshold time may be approximately 12 seconds to approximately 20 seconds. The first, second, third, and fourth threshold times may depend on the mode in which the device is operating. For example, when the device is operating in a first default mode, the first, second, third, and fourth threshold times may each be longer than the first, second, third, and fourth threshold times when the device is operating in a second boost mode. This may be because the aerosol-generating material is heated more rapidly in the second boost mode.

[0131] In a particular example, the indicator assembly 306 may further comprise a tactile component configured to provide tactile feedback indicating that the device has started heating the aerosol-generating material. This may be useful when the first LED is not lit when the inductor coil starts generating a magnetic field, but instead lights up after a first threshold time. The tactile feedback may also indicate the mode in which the device is operating.

[0132] In some examples, the first LED may be lit substantially simultaneously with the control device 302 causing the inductor coil 124 to generate a magnetic field (i.e., not after the first threshold time has elapsed). Thus, the visual component of the indicator assembly 306 may also indicate that the device has started heating the aerosol-generating material. Also, the tactile component may provide an indication substantially simultaneously with the inductor coil starting to generate a magnetic field.

[0133] In another example, the indicator assembly 306 may comprise a tactile component configured to provide tactile feedback indicating that the device is ready for use. This may occur as an alternative or addition to any other type of indication. For example, the indicator assembly 306 may provide both a visual indication and tactile feedback indicating that the device is ready for use.

[0134] In another example, the indicator assembly 306 may comprise an auditory indicator configured to emit a sound indicating that the device is ready for use. This may occur as an alternative or addition to any other type of indication. For example, the indicator assembly 306 may provide both a visual indication and sound emission indicating that the device is ready for use.

[0135] Input interface As described above, the control device 302 detects an input from the input interface 112, and in response, determines the selected heating mode and generates an alternating magnetic field in the inductor coil 124. In this example, the input interface 112 includes a single button and transmits a signal indicating that the user has operated the input interface 112 to the control device 302. In a specific example, this signal indicates that the user has released the button. Therefore, the user can press and hold the button, and after the button is released, the control device 302 determines the selected heating mode and generates an alternating magnetic field in the inductor coil 124.

[0136] In a specific example, the user can press and hold the button for different lengths of time, and the device operates in a specific mode according to this length of time. Therefore, the input received from the input interface 112 may include a signal indicating the length of time the button was pressed. The control device 302 may be configured to generate an alternating magnetic field in the inductor coil 124 in response to receiving a signal indicating that the button has been released and determining that the length of time the button was pressed is equal to or greater than a threshold time. If the length of time is less than the threshold time, the device 100 does not start heating. Based on this length of time, the control device 302 can determine the selected mode. In a specific example, if the length of time is less than the threshold time, the device 100 may display the power level of the device's power supply 118.

[0137] As described above, the device 100 may be configured to operate in a first mode or a second mode. Thus, in a specific example, when the length of time the button is pressed is equal to or greater than a first threshold time and less than a second threshold time, the control device 302 is configured to operate the device in the first mode. When the length of time the button is pressed is equal to or greater than the second threshold time, the device is configured to operate in the second mode. For example, the first threshold time may be 3 seconds, and the second threshold time may be 5 seconds. Thereby, the user can select different modes using a single button. When the user presses the button for a time longer than 3 seconds and shorter than 5 seconds, the device operates in the first mode.

[0138] In a specific example, when the length of time the button is pressed is equal to or greater than a third threshold time, the device is configured to operate in a setting mode. According to the setting mode, the user can set the device. The third threshold time may be longer than the second threshold time. In a specific example, the third threshold time is 8 seconds. When the user presses the button for a time longer than 5 seconds and shorter than 8 seconds, the device operates in the second mode.

[0139] In another example, when the length of time the button is pressed is equal to or greater than a fourth threshold time and less than a first time, the device is configured to display the power level of the power supply 118. The fourth threshold time may be, for example, 1 second. When the user presses the button for a time longer than 1 second and shorter than 3 seconds, the device can display the power level. The power level may be indicated by the indicator assembly 306. For example, when the power level is 0% - 25%, one of the four LEDs 214 may be lit. When the power level is 25% - 50%, two of the LEDs 214 may be lit. When the power level is 50% - 75%, three of the LEDs 214 may be lit. When the power level is 75% - 100%, all four of the LEDs 214 may be lit.

[0140] Above, only a specific type of input interface 112 has been described. In another example, the user selects an operation mode using a touch screen. In another example, one or more input interfaces may be present. For example, to operate the device in a first mode, the user may operate a first input interface, and to operate the device in a second mode, the user may operate a second input interface. Thus, the control device 302 may be configured to generate a variable magnetic field in the inductor coil in response to an input received from one of the first and second input interfaces.

[0141] Indication that the device has finished operating As described above, the indicator assembly 306 can indicate that the device is ready for use or that the device has started heating the aerosol-generating material. As an alternative or addition to this, the indicator assembly 306 can indicate that the device has finished operating or is about to finish operating. In a particular example, the indicator assembly 306 is configured to indicate the time remaining until the device finishes operating.

[0142] The device may be configured to heat the aerosol-generating material over a predetermined time. Thus, the control device 302 may cause the indicator assembly 306 to display that the device has finished operating or is about to finish operating within a predetermined time after generating a variable magnetic field in the inductor coil. This predetermined time may be, for example, approximately 3 minutes, 3 minutes and 30 seconds, or 4 minutes. In some examples, this predetermined time is determined by the mode in which the device is operating.

[0143] In one example, the indicator assembly 306 indicates, by stopping the display, that the device has finished operating or is about to finish operating. For example, while the device is operating, visual components such as one or more LEDs may be configured to visually indicate that the device is operating. When the visual display stops, the user can be informed that the device has finished operating. For example, if one or more LEDs are lit while the device is operating, the LEDs may be turned off when the device finishes operating to provide an indication to the user.

[0144] In another example, the indicator assembly 306 indicates, by a specific display, that the device has finished operating. For example, the visual component may be configured to indicate, by a specific display, that the device has finished operating or is about to finish operating. This visual display may be different from the previous visual display. For example, if one or more LEDs are lit while the device is operating, they may blink in a specific pattern to indicate that the device has finished operating or is about to finish operating.

[0145] In a specific example, the indicator assembly 306 may further include a tactile component, which is configured to provide tactile feedback indicating that the device has finished operating or is about to finish operating. In another example, the indicator assembly 306 may include an auditory indicator, which is configured to emit a sound indicating that the device has finished operating or is about to finish operating. Two or more different types of displays may be provided.

[0146] In some examples, the indicator assembly 306 is configured to indicate the time remaining until the device finishes operating. For example, at various times as the device approaches its end time, a display may be provided.

[0147] In one example, the tactile component may provide tactile feedback 20 seconds after the end of the heating session, or 15 seconds after the end of the heating session, 10 seconds after the end of the heating session, 5 seconds after the end of the heating session, and at the end of the heating session. The tactile feedback provided at each time point may be the same or different. For example, the feedback may increase towards the end of the heating session or may be of a longer duration.

[0148] In another example, the indicator assembly 306 includes a plurality of LEDs, and the number of lit LEDs indicates the time remaining until the device finishes operating. For example, when the device is operating, a first number of LEDs are lit, and when the device finishes operating, a second number of LEDs are lit, and the second number may be smaller than the first number. The second number may be zero, for example. The first number may be all the LEDs. Thus, the LEDs may perform a "countdown" as the device approaches the end.

[0149] In a particular example, there are a plurality of LEDs, such as four LEDs, and these LEDs are sequentially turned off as the end of the heating session approaches. FIG. 13E may show the outer member 202 when the device is operating. The first and / or second inductor coils may or may not be operating at this point. At this point, the lighting of all four LEDs indicates that the user can still use the device. There may be a threshold time remaining until the device finishes operating. For example, 20 seconds may remain until the device finishes operating.

[0150] In one example, the device can be said to have "completed operation" when the first and / or second inductor coil stops generating a varying magnetic field. In another example, the device can be said to have "completed operation" when the temperature / amount of the aerosol is considered to have fallen below the acceptable range level (which may be after the time when the first and / or second inductor coil stops generating a varying magnetic field).

[0151] FIG. 13D can show the outer member 202 at a time after FIG. 13E. For example, there may be only 15 seconds left until the device completes operation. At this point, one of the four LEDs is off, and light passes through some of the openings 204, illuminating three quadrants of the outer member 202.

[0152] FIG. 13C can show the outer member 202 at a time after FIG. 13D. For example, there may be only 10 seconds left until the device completes operation. At this point, two of the four LEDs are off, and light passes through some of the openings 204, illuminating two quadrants of the outer member 202.

[0153] FIG. 13B can show the outer member 202 at a time after FIG. 13C. For example, there may be only 5 seconds left until the device completes operation. At this point, three of the four LEDs are off, and light passes through some of the openings 204, illuminating one quadrant of the outer member 202.

[0154] FIG. 13A can show the outer member 202 at a time after FIG. 13B. For example, the device may have completed operation. At this point, all four LEDs are off and no light is visible. Thus, the indicator assembly 306 indicates that the device has completed operation while also showing the time remaining until the device completes operation.

[0155] Figure 14 is a flowchart of a method of operating an aerosol supply device. The method includes, at block 402, detecting an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode. In response to detecting the input, the method includes, at block 404, determining the selected heating mode based on the input. The method includes, at block 406, starting heating of an aerosol-forming material in a heating assembly of the device according to the selected heating mode. The method includes, at block 408, causing an indicator assembly to indicate that the device is ready for use within a predetermined time after starting heating of the aerosol-forming material in the heating assembly.

[0156] Figure 15 is a flowchart of another method of operating an aerosol supply device. The method includes, at block 502, generating an alternating magnetic field for heating a susceptor in an inductor coil of the aerosol supply device. The method includes, at block 504, causing an indicator assembly of the aerosol supply device to indicate that the device has finished operating or is about to finish operating within a predetermined time after starting heating of the aerosol-forming material in the inductor coil assembly.

[0157] The above embodiments are to be understood as illustrative examples useful for explaining the present invention. Other embodiments of the present invention are also conceivable. It is understood that any feature described with respect to any one embodiment can be used alone or in combination with other described features, and also in combination with one or more features of any other of the embodiments or any combination thereof. Furthermore, equivalents and improvements not described above as defined in the appended claims can be adopted without departing from the scope of the present invention.

[0158] This specification discloses the following embodiments. (Embodiment 1) An aerosol supply device, A heating assembly configured to heat an aerosol - generating material, an indicator assembly, an input interface configured to receive an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode, a control device, and comprising, wherein the control device is configured to: detect the input for selecting the heating mode, in response to the detection of the input, determine a selected heating mode based on the input, start heating the aerosol - generating material in the heating assembly according to the selected heating mode, cause the indicator assembly to indicate that the device is ready for use within a predetermined time after starting to heat the aerosol - generating material in the heating assembly, and is configured to perform the above operations, an aerosol supply device. (Embodiment 2) The aerosol supply device according to Embodiment 1, wherein the predetermined time is less than approximately 30 seconds after starting heating in the heating assembly. (Embodiment 3) The aerosol supply device according to Embodiment 2, wherein the predetermined time is less than approximately 20 seconds after starting heating in the heating assembly. (Embodiment 4) The aerosol supply device according to any one of Embodiments 1 to 3, wherein the predetermined time is determined by the selected heating mode. (Embodiment 5) In the second mode, the control device is configured to heat a heating component of the heating assembly to a higher temperature than in the first mode, The aerosol supply device according to Embodiment 4, wherein the predetermined time is less than the predetermined time when the device is operating in the first mode. (Embodiment 6) The aerosol supply device according to any one of Embodiments 1 to 5, wherein the input interface includes a button, and the input includes a signal indicating that the button has been released. (Embodiment 7) The input further includes a signal indicating the length of time the button has been pressed, and the control device receives a signal indicating that the button has been released, determines that the length of time the button has been pressed is equal to or greater than a predetermined threshold time, and in response thereto, the aerosol supply device according to Embodiment 6, which is configured to detect the input for selecting a heating mode. (Embodiment 8) The aerosol supply device according to Embodiment 7, wherein the control device is configured to determine a selected heating mode based on the length of time the button has been pressed. (Embodiment 9) The aerosol supply device according to any one of Embodiments 1 to 8, wherein the indicator assembly includes a visual component indicating that the device is ready for use. (Embodiment 10) The aerosol supply device according to any one of Embodiments 1 to 9, wherein the indicator assembly includes a tactile component configured to provide tactile feedback indicating that the device is ready for use. (Embodiment 11) The aerosol supply device according to any one of Embodiments 1 to 10, wherein the indicator assembly includes an auditory component configured to emit a sound indicating that the device is ready for use. (Embodiment 12) The aerosol supply device according to any one of Embodiments 1 to 11, wherein the control device is configured to cause the indicator assembly to display that the device has finished operating or is about to finish operating within a second predetermined time after the control device starts heating the aerosol generating material in the heating assembly. (Embodiment 13) The heating assembly includes an inductor coil that generates a varying magnetic field, and a susceptor configured to heat the aerosol generating material and capable of being heated by the intrusion of the varying magnetic field, and is provided with The aerosol supply device according to any one of Embodiments 1 to 12, wherein the control device is configured to start heating the aerosol generating material in the heating assembly according to the selected heating mode by causing the inductor coil to generate the varying magnetic field. (Embodiment 14) The inductor coil is a first inductor coil, and the heating assembly further includes a second inductor coil that generates a second varying magnetic field, The first inductor coil is adjacent to the second inductor coil in a direction along the longitudinal axis, The control device is configured to generate the second varying magnetic field in the second inductor coil after causing the indicator assembly to display that the device is ready for use, During use, an aerosol is drawn out along the flow path of the device toward the proximal end of the device, and the first inductor coil is disposed closer to the proximal end of the device than the second inductor coil. The aerosol supply device according to Embodiment 13. (Embodiment 15) A method of operating an aerosol supply device, comprising: detecting an input for selecting a heating mode from a plurality of heating modes including a first mode and a second mode; In response to the detection of the input, Based on the input, determining a selected heating mode; Initiating heating of the aerosol - generating material in the heating assembly of the device according to the selected heating mode; Causing an indicator assembly to indicate that the device is ready for use within a predetermined time after initiating heating of the aerosol - generating material in the heating assembly; Performing the steps of; A method comprising. (Embodiment 16) The method according to embodiment 15, wherein the predetermined time is less than approximately 30 seconds after initiating heating in the heating assembly. (Embodiment 17) The method according to embodiment 16, wherein the predetermined time is less than approximately 20 seconds after initiating heating in the heating assembly. (Embodiment 18) The method according to any one of embodiments 15 - 17, wherein the predetermined time is determined by the selected heating mode. (Embodiment 19) In the second mode, heating the heating component of the heating assembly to a higher temperature than in the first mode, The method according to embodiment 18, wherein the predetermined time is less than the predetermined time when the device is operating in the first mode. (Embodiment 20) The method according to any one of embodiments 15 - 19, wherein the step of detecting an input for selecting a heating mode includes detecting that a button has been released. (Embodiment 21) The method according to embodiment 20, wherein the step of detecting an input for selecting a heating mode further includes detecting the length of time the button has been pressed, and the selected heating mode is determined based on the length of time the button has been pressed. (Embodiment 22) The method according to any one of Embodiments 15 to 21, further comprising the step of causing the indicator assembly to display that the device has finished operating or is about to finish operating within a predetermined time after starting heating of the aerosol-forming material in the heating assembly.

Claims

1. 1. An aerosol delivery device comprising: a heating assembly configured to heat the aerosol-generating material; and An indicator assembly; an input interface configured to receive an input for selecting an operational mode from a plurality of operational modes, the operational mode including at least one heating mode; A control device; Equipped with The control device includes: detecting the input for selecting the operating mode; In response to detecting the input, If the input corresponds to a selection of a heating mode, causing the heating assembly to begin heating the aerosol-forming material in accordance with the selected heating mode; causing the indicator assembly to indicate that the device is in a ready-to-use state in which a desired amount of aerosol for a first smoke to be taken has been generated from the aerosol-generating material, the indication being provided a predetermined time after causing the heating assembly to begin heating the aerosol-generating material; The aerosol delivery device is configured to:

2. 1. An aerosol delivery device comprising: a heating assembly configured to heat the aerosol-generating material; and An indicator assembly; an input interface configured to receive an input for selecting an operational mode from a plurality of operational modes including at least one mode; A control device; Equipped with The control device includes: detecting the input for selecting the operating mode; In response to detecting the input, If the input corresponds to a selection of a heating mode, causing the heating assembly to begin heating the aerosol-forming material in accordance with the selected heating mode; causing the indicator assembly to indicate that the device is ready for use within a predetermined time after causing the heating assembly to begin heating the aerosol generating material; and configured to: the heating assembly comprising a first inductor coil for generating a first varying magnetic field and a second inductor coil for generating a second varying magnetic field; An aerosol delivery device, wherein the control device is configured to cause the second inductor coil to generate the second changing magnetic field after causing the indicator assembly to indicate that the device is ready for use.

3. 1. An aerosol delivery device comprising: a heating assembly configured to heat the aerosol-generating material; and An indicator assembly; an input interface configured to receive an input for selecting an operational mode from a plurality of operational modes including at least one mode; A control device; Equipped with The control device includes: detecting the input for selecting the operating mode; In response to detecting the input, If the input corresponds to a selection of a heating mode, causing the heating assembly to begin heating the aerosol-forming material in accordance with the selected heating mode; causing the indicator assembly to indicate that the device is ready for use within a predetermined time after causing the heating assembly to begin heating the aerosol generating material; and configured to: the input interface comprises a button, the input comprises a signal indicative of the length of time the button is pressed, and the controller is determining that the length of time that the button is pressed is equal to or greater than a predetermined threshold time; and configured to detect a selection of the heating mode in response to the aerosol delivery device.

4. The aerosol delivery device of claim 1 , wherein the predetermined time is monitored by a timer.

5. The aerosol delivery device of any one of claims 1 to 3, wherein the predetermined time comprises a time after a susceptor reaches an operating temperature of the selected heating mode.

6. The aerosol delivery device of any one of claims 1 to 3, wherein the predetermined time is less than approximately 30 seconds after the heating assembly is caused to start heating.

7. The aerosol delivery device of claim 1 , wherein the predetermined time period depends on a heating mode selected from a plurality of heating modes.

8. in a second heating mode, the controller is configured to cause the heating assembly to heat a heating component of the heating assembly to a temperature greater than in a first heating mode; The aerosol delivery device of claim 7 , wherein the predetermined time is less than the predetermined time when the device is operating in the first heating mode.

9. The aerosol delivery device of claim 1 , wherein the plurality of operational modes includes one or more non-heating modes.

10. The aerosol delivery device of claim 1 , wherein the input interface is a single interface for selecting different modes from the plurality of operating modes.

11. The aerosol delivery device of claim 10 , wherein the input interface is a button.

12. The aerosol delivery device of claim 11 , wherein the controller is configured to determine a selected mode of operation based on the length of time the button is pressed.

13. 4. The aerosol delivery device of claim 1, wherein a first indication is provided to indicate that a heating mode has been selected and a second indication is provided to indicate that the device is ready for use.

14. The aerosol delivery device of claim 1 , wherein the indicator assembly comprises a tactile component and a visual component.

15. 15. The aerosol delivery device of claim 14, wherein the tactile component is configured to provide a tactile indication that the heating assembly has begun heating and the visual component is configured to provide a visual indication that the device is ready for use.

16. The aerosol delivery device of claim 14 , wherein the tactile component is configured to provide tactile feedback indicating that a certain amount of time remains before the device completes an operation.

17. The heating assembly includes: an inductor coil for generating a varying magnetic field; a susceptor configured to heat the aerosol-generating material, the susceptor being heatable by penetration of the varying magnetic field; and Equipped with 4. The aerosol delivery device of claim 1 or 3, wherein the control device is configured to cause the heating assembly to begin heating the aerosol generating material in accordance with a selected heating mode by causing the inductor coil to generate the varying magnetic field.

18. 1. A method of operating an aerosol delivery device, comprising: detecting an input for selecting an operation mode from a plurality of operation modes including a first mode and a second mode; In response to detecting the input, determining a selected mode of operation based on the input; and if the selected operating mode is a heating mode, causing a heating assembly of the device to begin heating an aerosol-forming material in accordance with the selected heating mode; causing an indicator assembly to indicate that the device is in a ready-to-use state in which a desired amount of aerosol for a first smoke to be taken has been generated from the aerosol-generating material, the indication being provided at a predetermined time after causing the heating assembly to begin heating the aerosol-generating material; and A method comprising:

19. 1. A method of operating an aerosol delivery device, comprising: detecting an input for selecting an operation mode from a plurality of operation modes including a first mode and a second mode; In response to detecting the input, determining a selected mode of operation based on the input; and if the selected operating mode is a heating mode, causing a heating assembly of the device to begin heating an aerosol-forming material in accordance with the selected heating mode; causing an indicator assembly to indicate that the device is ready for use within a predetermined time after causing the heating assembly to begin heating the aerosol generating material; and and Including, The method, wherein the heating assembly comprises a first inductor coil for generating a first changing magnetic field and a second inductor coil for generating a second changing magnetic field, the method including causing the second inductor coil to generate the second changing magnetic field after causing the indicator assembly to indicate that the device is ready for use.

20. 1. A method of operating an aerosol delivery device, comprising: detecting an input for selecting an operation mode from a plurality of operation modes including a first mode and a second mode; In response to detecting the input, determining a selected mode of operation based on the input; and if the selected operating mode is a heating mode, causing a heating assembly of the device to begin heating an aerosol-forming material in accordance with the selected heating mode; causing an indicator assembly to indicate that the device is ready for use within a predetermined time after causing the heating assembly to begin heating the aerosol generating material; and and Including, the input indicating a length of time a button on the aerosol delivery device was pressed; determining that the length of time that the button is pressed is equal to or greater than a predetermined threshold time; In response to the determination of a heating mode selection.

Images