巴西专利BR112013018328B1 aerosol generating system with means for deactivating disposable articles

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专利摘要:
AEROSOL GENERATING SYSTEM WITH MEANS FOR DISABLING DISPOSABLE ITEMS The present invention relates to an aerosol generating system comprising: a storage portion for storing an aerosol-forming substrate, an aerosol-generating element for generating an aerosol from the substrate the aerosol former, set of control circuits in communication with the storage portion, and deactivation medium within the storage portion to render the storage portion inoperable in the aerosol generating system in response to a deactivation signal from control circuitry. Also provided is a method in an aerosol generating system comprising a storage portion for storing aerosol-forming substrate, an aerosol-generating element for generating an aerosol from the aerosol-forming substrate, a set of control circuits in communication with the storage portion and deactivation medium within the storage portion configured to render the storage portion inoperable in the aerosol generating system, in response to a deactivation signal from the control circuitry, the method comprising: sending a signal deactivation of the (...) set.
公开号:BR112013018328B1
申请号:R112013018328-4
申请日:2011-12-22
公开日:2020-06-30
发明作者:Jean-Marc Flick
申请人:Philip Morris Products S.A.；
IPC主号:

专利说明:

[0001] [0001] The present invention relates to an aerosol generating system. In particular, the present invention relates to an aerosol generating system in which the aerosol-forming substrate is liquid and is contained in a liquid storage portion.
[0002] [0002] WO 2007/078273 describes an electric smoking tool. A liquid is stored in a container that communicates with a heated vaporizer, powered by a battery supply, through a series of small openings. The heater is in the form of an electric heater wound in a spiral mounted on an electrically insulating support. In use, the heater is activated by a user's mouth to activate the battery power supply. Suction into a nozzle by the user causes air to be drawn through holes in the container, over the heater vaporizer, into the nozzle and subsequently into a user's mouth.
[0003] [0003] The aerosol generating systems of the prior art, including the smoking system mentioned above, do have some advantages, but an improvement in their design is still possible, particularly with regard to the handling of the liquid storage portion.
[0004] [0004] According to a first aspect of the invention, an aerosol generating system is provided comprising:
[0005] [0005] a storage portion containing an aerosol-forming substrate;
[0006] [0006] an aerosol generating element for generating an aerosol from the aerosol-forming substrate;
[0007] [0007] set of control circuits in communication with the storage portion or with the aerosol generating element; and
[0008] [0008] means for deactivation to render the storage portion inoperable in the aerosol generating system in response to a deactivation signal from the control circuitry.
[0009] [0009] Preferably, the means of deactivation is part of the storage portion. Preferably the aerosol generating system is an electrically operated system. The aerosol generating element is preferably electrically operated. Preferably, the storage portion is separable from a main body of the aerosol generating system, and the control circuitry is arranged in the main body of the aerosol generating system.
[0010] [0010] It is advantageous to be able to automatically disable the storage portion for several reasons. If the storage portion is empty or nearly empty, or if the system malfunctions, the system may not produce aerosol with the desired characteristics, for example, aerosol particle size or chemical composition. In addition, if the liquid storage portion is empty or nearly empty, disabling the storage portion is a means of informing the user that the aerosol-forming substrate needs to be replaced. In addition, automatic deactivation of the storage portion can be used to prevent, or at least hinder, the reuse of the storage portion with a refill consisting of inferior, unsuitable or even harmful substrate materials.
[0011] [0011] The aerosol generating system preferably further comprises a main body and the storage portion forms or forms part of a disposable cartridge configured to couple the main body. It is advantageous to be able to deactivate a disposable cartridge, but keep a main body as a reusable part. The main body can include the most expensive components such as a control circuitry and a user interface.
[0012] [0012] Preferably, the deactivation means is an electrical component that is configured to be switched or damaged by the deactivation signal. Preferably, the component is an electrical fuse that can be blown by a sufficiently high current signal. Preferably, the deactivation signal is sufficient current to blow the fuse. However, other electrical components can be used, such as a switch or transistor. However, other means for deactivating the storage portion can be used. For example, the control circuitry can be configured to optically check the storage portion before the aerosol generating element can be activated and the deactivation medium can be an electrochromic material, or a thermochromic paint in the storage portion that is heated by a heater in response to a shutdown signal.
[0013] [0013] Alternatively, in cases where the storage portion is recognized or identified using a set of logic circuits (for example, electromagnetic or optical) by means of a unique identifier, the same set of circuits can be used to write an “invalidate bit” (indicator bit) in the memory of that circuitry by which the storage portion is “deactivated” and thus cannot be used with the underlying aerosol generating system. However, in cases where the storage portion comprises this set of logic circuits, the invalidation bit can even be stored in the storage portion itself, thus avoiding another use of it with another aerosol generating system.
[0014] [0014] The control circuitry is preferably configured to determine or estimate when an amount of aerosol-forming substrate in the storage portion is below a threshold amount, and to emit the deactivation signal when the amount of aerosol-forming substrate in the storage portion is determined or estimated to be below the limit quantity. The control circuitry can determine the amount of substrate in the storage portion by direct measurement, indirect measurement, or calculation. For example, the system may include means for directly measuring the mass of the storage portion, such as a scale. The set of control circuits can be configured to calculate the mass of substrate consumed by monitoring the use of the system. For example, the control circuitry can calculate substrate consumption based on the number of times the aerosol generating element has been activated. Alternatively, the control circuitry may use a change in system behavior that indicates emptying of the storage portion to estimate the amount of substrate remaining in the storage portion.
[0015] [0015] The limit amount of aerosol-forming liquid substrate in the liquid storage portion can be an absolute amount or a relative amount, for example, a percentage value.
[0016] [0016] If the amount of aerosol-forming liquid substrate has decreased, for example, if the liquid storage portion is empty or nearly empty, an insufficient amount of aerosol-forming liquid substrate may be provided for the aerosol-generating element. In the event that a heater is used as an aerosol generating element, this can lead to an increase in the heater temperature. Thus, the heater temperature, as captured by the temperature sensor, may allow the electrical circuitry to determine that the amount of aerosol-forming liquid substrate in the liquid storage portion has decreased to a predetermined limit.
[0017] [0017] The control circuitry is preferably configured to emit the deactivation signal when the control circuitry detects a malfunction in the system. For example, if a heater is used to generate aerosol, a temperature sensor can be used to detect any overheating of the heater or substrate. The temperature sensor is coupled to the control circuitry and the control circuitry emits a deactivation signal if the temperature captured by the temperature sensor exceeds a first temperature limit. This is advantageous because it allows the system to avoid the generation of undesirable or dangerous aerosol constituents.
[0018] [0018] The aerosol forming substrate preferably has physical properties, for example, a boiling point, suitable for use in the aerosol generating system. The aerosol-forming substrate is preferably a liquid. The liquid preferably comprises a tobacco-containing material comprising volatile tobacco-flavored compounds which are released from the liquid upon heating. Alternatively, or together, the liquid may comprise a material other than tobacco. The liquid can include water, solvents, ethanol, plant extracts and natural or artificial flavors. Preferably, the liquid further comprises an aerosol former. Examples of suitable aerosol builders are glycerin and propylene glycol.
[0019] [0019] Preferably the storage portion is configured so that the substrate in the storage portion is protected from ambient air and, in some embodiments, from light, so that the risk of degradation of the substrate is significantly reduced. In addition, a high level of hygiene can be maintained.
[0020] [0020] The aerosol generating element is preferably a heater configured to heat the substrate. However, other aerosol generating elements can be used, such as a vibration transducer.
[0021] [0021] The heating is preferably an electric heater. The electric heater may comprise a single electric heater element. Alternatively, the electric heater may comprise more than one heating element, for example, two, or three, or four, or five, or six, or more heating elements. The heating element or heating elements can be positioned appropriately in order to more effectively heat the aerosol-forming liquid substrate.
[0022] [0022] Preferably, the control circuitry is configured to emit a deactivation signal in response to a temperature or resistance measurement. More preferably, the control circuitry is configured to emit a deactivation signal in response to a determination that the temperature or resistance of a heating element has exceeded a predetermined limit.
[0023] [0023] The electric heating element (or elements) preferably comprises an electrically resistant material. Suitable electrically resistant materials include, but are not limited to: semiconductors such as doped ceramics, electrically "conductive" ceramics (such as, for example, molybdenum disilicide), carbon, graphite, metals, metal alloys and composite materials made of a ceramic material and a metallic material. Such composite materials may comprise doped or non-doped ceramic. Examples of suitable doped ceramics include doped silicon carbides. Examples of suitable metals include titanium, zirconium, tantalum and platinum group metals. Examples of suitable metal alloys include stainless steel, Constantan, alloys containing nickel, cobalt, chrome, aluminum-titanium-zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese and iron, and nickel-based super alloys , iron, cobalt, stainless steel, Timetal®, ferro-aluminum based alloys and ferro-manganese-aluminum based alloys. Timetal® is a registered trademark of Titanium Metals Corporation. In composite materials, the electrically resistant material can optionally be embedded, encapsulated or coated with an insulating material or vice versa, depending on the energy transfer kinetics and the required external physiochemical properties. The heating element can comprise an etched metallic laminate isolated between two layers of an inert material. In that case, the inert material may comprise Kapton®, a whole laminate of polyimide or mica. Kapton® is a registered trademark of E.I. Du Pont de Nemours and Company.
[0024] [0024] The electric heating element can take any suitable shape. For example, the minimum electric heating element can take the form of a heating blade. Alternatively, the electric heating element can take the form of an enclosure or substrate having different electroconductive portions or an electrically resistant metal tube. The storage portion may incorporate a disposable heating element. Alternatively, one or more heating needles or rods that traverse the aerosol-forming substrate may also be suitable. Alternatively, the electric heating element may comprise a flexible sheet of material. Other alternatives include a heating wire or filament, for example, a Ni-Cr, platinum, tungsten, or alloy wire, or a heating plate. Optionally, the heating element can be deposited on or on a rigid carrier material.
[0025] [0025] The heating element may comprise a heat sink, or a heat reservoir comprising a material capable of absorbing and storing heat and subsequently releasing heat over time to heat the aerosol-forming substrate. The heat sink can be formed from any suitable material, such as a suitable metal or ceramic material. Preferably, the material has a high thermal capacity (sensitive thermal storage material), or is a material capable of absorbing and subsequently releasing heat by a reversible process, such as a high temperature phase change. Suitable sensitive thermal storage materials include silica gel, alumina, carbon, glass fabric, fiberglass, minerals, a metal or alloy such as aluminum, silver or lead, and a cellulose material such as paper. Other suitable materials that release heat through a reversible phase change include paraffin, sodium acetate, naphthalene, wax, polyethylene oxide, a metal, a metallic salt, a mixture of eutectic salts or an alloy.
[0026] [0026] The heat sink or heat reservoir can be positioned so that they are directly in contact with the aerosol-forming substrate and can transfer the stored heat directly to the substrate. Alternatively, the heat stored in the heat sink or in the heat reservoir can be transferred to the aerosol-forming substrate by means of a thermal conductor, such as a metal tube.
[0027] [0027] The heater can heat the aerosol-forming liquid substrate by means of conduction. The heater may be at least partially in contact with the substrate. Alternatively, the heat from the heater can be conducted to the substrate by means of a thermally conductive element.
[0028] [0028] Alternatively, the heater can transfer heat to the ambient air that is drawn in through the electrically operated aerosol generator system during use, which in turn heats the aerosol-forming substrate by convection. Ambient air can be heated before passing through the aerosol-forming substrate. Alternatively, the ambient air can first be drawn through the substrate and then heated.
[0029] [0029] Preferably, the aerosol-forming substrate is a liquid at room temperature and the aerosol-generating system further comprises a capillary wick for transporting the aerosol-forming liquid substrate from the storage portion to the aerosol-generating element.
[0030] [0030] Preferably, the capillary wick is positioned so as to be in contact with liquid in the storage portion. Preferably, the capillary wick extends into the storage portion. In this case, in use, the liquid is transferred from the storage portion to the electric heater (or other aerosol generating element) by the capillary action on the capillary wick. In one embodiment, the capillary wick has a first end and a second end, the first end extending into the storage portion for contact with the liquid that is there, and an electric heater being positioned to heat liquid at the second end . When the heater is activated, the liquid at the second end of the capillary wick is vaporized by the minimum heater element of the heater to form supersaturated steam. Supersaturated steam is mixed with and transported by the air flow. During the flow, the vapor condenses to form the aerosol and the aerosol is transported towards a user's mouth. The aerosol-forming liquid substrate has physical properties, including viscosity, that allow the liquid to be transported through the capillary wick by capillary action.
[0031] [0031] The capillary wick can have a fibrous or spongy structure. The capillary wick preferably comprises a bundle of capillaries. For example, the capillary wick may comprise a plurality of fibers or fillets or other thin gauge tubes. The fibers or fillets can generally be aligned in the longitudinal direction of the aerosol generating system. Alternatively, the capillary wick may comprise a sponge-like or foam-like material formed in the form of a rod. The rod shape can extend along the longitudinal direction of the aerosol generating system. The wick structure forms a plurality of small holes or tubes, through which the liquid can be transported by capillary action. The capillary wick can comprise any suitable material or combination of materials. Examples of suitable materials are capillary materials, for example, a sponge or foam material, ceramic or graphite based materials in the form of sintered fibers or powders, foamed metal or plastic material, a fibrous material made, for example, of fibers twisted or extruded, such as cellulose acetate, polyester or polyolefin, polyethylene, terylene or polypropylene bonded fibers, nylon or ceramic fibers. The capillary wick can have any suitable capillarity and porosity in order to be used with different physical and liquid properties. The liquid has physical properties, including, among others, viscosity, surface tension, density, thermal conductivity, boiling point and vapor pressure, which allow the liquid to be transported through the capillary device by capillary action.
[0032] [0032] Preferably, the aerosol generating element is in the form of a heating wire or filament surrounding, and optionally supporting, the capillary wick. The capillary properties of the wick, combined with the properties of the liquid substrate, ensure that, during normal use, when there is enough aerosol-forming substrate, the wick is always wet in the heating area.
[0033] [0033] The aerosol generating system may comprise a user display. In this case, the indication may comprise an indication on the user's display. Alternatively, the indication may comprise an audible indication, or any other suitable type of indication for a user.
[0034] [0034] The aerosol generating system can also comprise an electric energy supply. Preferably, the aerosol generating system comprises a housing. Preferably, the housing is elongated. If the aerosol generated includes a capillary wick, in use the longitudinal geometric axis of the capillary wick and the longitudinal geometric axis of the housing can be substantially parallel. The housing may comprise a housing and a mouthpiece. In that case, all components can be contained either in the housing or the nozzle. In a preferred embodiment, the housing includes a disposable cartridge comprising the storage portion, the capillary wick and the heater. In that embodiment, those parts of the aerosol generating system may be removable from the housing as a single component.
[0035] [0035] The accommodation can comprise any material or combination of suitable materials. Examples of suitable materials include metals, alloys, plastics or composite materials containing one or more of these materials, or thermoplastics that are suitable for applications in food or pharmaceutical products, for example, polypropylene, polyetheretherketone (PEEK) and polyethylene. Preferably, the material is light and not brittle.
[0036] [0036] Preferably, the aerosol generating system is portable. The aerosol generating system can be a smoking system and can be comparable in size to a conventional cigar or cigarette. The smoking system can have a total length of between approximately 30 mm and approximately 100 mm. The smoking system can have an outside diameter between approximately 5 mm and approximately 13 mm.
[0037] [0037] Preferably, the electrically operated aerosol generating system is an electrically heated smoking system.
[0038] [0038] In a second aspect, the invention provides a cartridge for use in an aerosol generating system, the cartridge comprising:
[0039] [0039] an aerosol forming substrate; and
[0040] [0040] deactivation means to render the cartridge inoperable in the aerosol generating system, the deactivation means configured to be activated by a signal from the aerosol generating system.
[0041] [0041] The aerosol-forming substrate and the deactivation medium can take any of the forms described in relation to the first aspect of the invention. The cartridge may include a storage portion for storing the aerosol-forming substrate and may include a capillary wick as described in connection with the first aspect of the invention. The cartridge can further include an aerosol generating element as described with respect to the first aspect of the invention. The cartridge may further include one or more of a set of control circuits, a power supply and a user interface as described in relation to the first aspect of the invention.
[0042] [0042] In a third aspect, the invention provides an aerosol generating device for use with a disposable cartridge, the disposable cartridge containing an aerosol forming substrate and a deactivation means configured to render the cartridge inoperable in the aerosol generating device in response at an off signal, the aerosol generating system comprising:
[0043] [0043] set of control circuits configured to emit a deactivation signal to the deactivation medium when the amount of aerosol-forming substrate in the storage portion is determined or estimated to be below a limit quantity or when malfunction is detected .
[0044] [0044] The set of control circuits can be configured as described in relation to the first aspect of the invention. The aerosol generating device may further include an aerosol generating element as described in connection with the first aspect of the invention. The cartridge can further include one or more of a power surface and a user interface as described in relation to the first aspect of the invention.
[0045] [0045] According to a fourth aspect of the invention, a method is provided in an aerosol generating system comprising a storage portion for storing aerosol-forming substrate, an aerosol-generating element for generating an aerosol from the aerosol-forming substrate , control circuitry in communication with the storage portion and deactivation medium associated with the storage portion to render the storage portion inoperable in the aerosol generating system in response to a deactivation signal coming from the control circuitry, the method comprising:
[0046] [0046] send a deactivation signal from the circuitry to the deactivation medium following a finding that an amount of the aerosol substrate in the storage portion is below a threshold level or following a finding of a improper system operation.
[0047] [0047] According to a fifth aspect of the invention, a set of electrical circuits is provided for an aerosol generating system, the set of electrical circuits being positioned to carry out the method of the second aspect of the invention.
[0048] [0048] According to a sixth aspect of the invention, a computer program is provided which, when executed in the set of electrical circuits for an aerosol generating system, causes the programmable electrical circuit set to put into practice the method of second aspect of the invention.
[0049] [0049] Aspects described in relation to the aerosol generating system of the invention can also be applicable to the method of the invention. And aspects described in relation to the method of the invention can also be applicable to the aerosol generating system of the invention.
[0050] [0050] The invention will be described further, only by way of example, with reference to the attached drawings, in which:
[0051] [0051] Figure 1 shows an example of an electrically operated aerosol generating system having a liquid storage portion; and
[0052] [0052] Figure 2 is a schematic illustration of a deactivation mechanism suitable for use in a system as shown in Figure 1.
[0053] [0053] Figure 1 shows an example of an electrically operated aerosol generating system having a liquid storage portion. In Figure 1, the system is a smoking system. The smoking system 100 of Figure 1 comprises a housing having a nozzle end 103 and a body end 105. At the body end, an electrical power supply in the form of battery 107 and a set of electrical control circuits 109 is provided A puff detection system 111 is also provided in conjunction with the control electrical circuitry 109. At the nozzle end, a cartridge storage portion 113 is provided containing liquid 115, a capillary wick 117 and a heater 119. Note that the heater is shown only schematically in Figure 1. In the exemplary embodiment shown in Figure 1, one end of capillary wick 117 extends inward 113 and the other end of capillary wick 117 is surrounded through heater 119. The heater is connected to the set of electrical control circuits by connections 121, which can pass along the outside of cartridge 113 (not shown in Figure 1). Housing 101 also includes an air inlet 123, an air outlet 125 at the nozzle end, and an aerosol forming chamber 127.
[0054] [0054] In use, the operation is as follows. The liquid 115 is transported by capillary action of the cartridge 113 from the end of the wick 117 which extends inside the cartridge to the other end of the wick that is surrounded by the heater 119. When a user sucks the aerosol generating system at the air outlet 125, ambient air is drawn through the air inlet 123. In the arrangement shown in Figure 1, the puff detection system 111 captures the puff and activates heater 119. Battery 107 provides electrical power to heater 119 to heat the end of the 117 wick surrounded by the heater. The liquid at that end of wick 117 is vaporized by heater 119 to create supersaturated vapor. At the same time, the liquid being vaporized is replaced by more liquid that moves along the wick 117 by capillary action (this is sometimes called the “pumping action”). The supersaturated steam created is mixed with the air flow coming from the air inlet 123 and transported there. In the aerosol forming chamber 127, the vapor condenses to form a swallowable aerosol, which is carried towards the outlet 125 and into the user's mouth.
[0055] [0055] In the mode shown in Figure 1, the set of electrical control circuits 109 and the puff detection system 111 are preferably programmable. Electrical control circuitry 109 and puff detection system 111 can be used to manage the operation of the aerosol generating system. This helps in controlling the particle size in the aerosol.
[0056] [0056] Figure 1 shows an example of an aerosol generating system electrically operated according to the present invention. Many other examples are possible, however. In addition, note that Figure 1 is schematic in nature. In particular, the components shown are not to scale either individually or in the relationship between them. The aerosol generating system must include or receive an aerosol-forming substrate. The aerosol generating system requires some type of aerosol generating element from the aerosol forming substrate. Finally, the aerosol generating system requires a set of control circuits to deactivate the system. This will be described below with reference to Figure 2. For example, the system does not have to be a smoking system. A puff detection system does not need to be provided. On the contrary, the system can operate by manual activation, for example, the user operating a switch when a puff is given. For example, the shape and size of the housing as a whole can be changed. In addition, the system may not include a capillary wick.
[0057] [0057] However, in a preferred embodiment, the system effectively includes a capillary wick to transport liquid substrate from a storage portion to at least one heating element. The capillary wick can be made from a variety of porous or capillary materials and preferably has a known, predefined capillarity. Examples include ceramic or graphite based materials in the form of sintered fibers or powders. Wicks of different porosities can be used to accommodate different physical properties of the liquid such as density, viscosity, surface tension and vapor pressure. The wick has to be adequate so that the required amount of liquid can be sent to the heater. Preferably, the heater comprises at least one heating wire or filament extending around the capillary wick.
[0058] [0058] The aerosol generating system of the invention includes a set of control circuits that is operable to disable cartridge 113. This can be done for several reasons. In a preferred embodiment, the control circuitry is configured to determine an amount of aerosol-forming substrate in the storage portion. When the liquid storage portion is determined to be empty or almost empty, the control circuitry 109 deactivates the cartridge 113. This is mainly because if the storage portion is almost empty, insufficient aerosol-forming liquid substrate, it can be supplied to the heater. This may mean that the aerosol created and swallowed by the user does not have the desired properties, for example, the particle size of the aerosol. This can result in a poor user experience. In addition, it is advantageous to provide a mechanism by which the user can be informed that the liquid storage portion is empty or nearly empty. The user can then prepare to replace the storage portion. Disabling empty cartridges also provides security for the user. There is a risk that the cartridges may be refilled with inferior and possibly dangerous substances. But by permanently disabling cartridges, they cannot be refilled or used again.
[0059] [0059] Figure 2 illustrates a modification of a deactivation system that can be used in a system as described with reference to Figure 1. The deactivation system of Figure 2 has two parts. One part is kept in the disposable cartridge 113 and the other part is kept in the control circuitry 109. An electric fuse 201 is located in the disposable. A three-port connection hole 221 is used to interface the storage portion of the disposable 113 and the main body of the device 101. The disposable part contains the heating element 119 which is in the form of a modulated signal, controlled by digital output 205 in microcontroller 203 and through transistor T1. The positive electrode of battery 207 is connected to the other leg of heating element 119 and electrical fuse 201.
[0060] [0060] In the embodiment shown in Figure 2, a determination that the cartridge 113 is almost empty is made by monitoring the temperature of the heating element 119. If the cartridge is almost empty, little aerosol-forming liquid substrate will be provided to the heater through the wick . This results in an increase in the temperature of the heater, since less energy is used to vaporize, vaporizing the substrate. Thus, the temperature of the heater allows the control circuitry to determine that the amount of liquid aerosol-forming substrate has decreased to a predetermined limit. Once the critical temperature is reached, the disposable is deactivated to prevent the consumer from violating the disposable such as refilling the cartridge. Deactivation also provides the consumer with an indication that the disposable needs to be replaced. Product deactivation also prevents the generation of harmful constituents formed by excess heat.
[0061] [0061] The measurement of the temperature of the heating element is based on the calculation of the current passing through resistance 209. This is determined from the signal for input 213 and the voltage of the battery converted into digital values through the two analogous inputs on the microcontroller. As the temperature of the heating element increases, so does its resistance. The relationship between resistance and temperature for the heating element can be programmed or stored in the microcontroller. When the microcontroller determines that the critical temperature has been reached, the microcontroller activates digital output 211 connected to transistor T2, which blows electrical fuse 201. After this operation, each time the user makes a suction movement on the device, the microcontroller 203 checks the validity of fuse 201 through a disposable enabling line 215 and if the connection is lost the device will then not operate. When the disposable is replaced with a new one, with a fuse intact, the system returns to normal operating mode.
[0062] [0062] It should be clear that other means to disable the cartridge are possible and other circuit configurations possible when using a fuse or other switchable electronic component or switch. For example, a unique temperature sensor can be connected to the microcontroller positioned to detect the temperature of the heating element.
[0063] [0063] The control circuitry can be configured to inform the user when the control circuitry determines that the amount of liquid in the liquid storage portion has decreased to a first limit, and the cartridge deactivated when the circuitry control determines that the amount of liquid in the liquid storage portion has decreased to a second limit. For example, if the aerosol generating system includes a display for the user, it can be indicated on the user display that the liquid storage portion is empty or almost empty and an estimate of the number of puffs before deactivation occurs can be provided. Alternatively or additionally, an audible sound can indicate to the user that the liquid storage portion is empty or almost empty. Alternative methods to indicate to the user that the liquid storage portion is empty or almost empty are possible, of course. An advantage of warning the user is that the user can then prepare to replace the liquid storage portion.
[0064] [0064] The present invention provides a system and method for rendering a disposable cartridge inoperable in an aerosol generating system. This has security benefits, as well as benefits in terms of user experience and convenience. Although a particular embodiment has been described, there are several ways to disable the disposable cartridge and several conditions under which the deactivation means can be activated that fall within the scope of the invention.

权利要求:
Claims (13)
[0001]
Electrically operated smoking system comprising: a storage portion (113) for storing an aerosol-forming substrate; an aerosol generating element (119) for generating an aerosol from the aerosol-forming substrate; control circuitry (109) in communication with the storage portion (113) or with the aerosol generating element (119); characterized by the fact that deactivation means (201) to render the storage portion inoperable in the aerosol generating system in response to a deactivation signal from the control circuitry, wherein the control circuitry (109) is configured to determine or estimate when an amount of aerosol-forming substrate (115) in the storage portion (113) is below a limit quantity, and to emit the deactivation signal when the amount of aerosol-forming substrate (115) in the storage portion (113) is determined or estimated to be below the limit quantity.
[0002]
Electrically operated smoking system according to claim 1, characterized by the fact that it further comprises a main body (101), wherein the storage portion (113) is a disposable cartridge configured to couple with the main body (101) .
[0003]
Electrically operated smoking system according to claim 2, characterized in that the control circuitry (109) is arranged in the main body (101) of the aerosol generating system.
[0004]
Electrically operated smoking system according to any one of the preceding claims, characterized by the fact that the deactivation means (201) is a component that is configured to be switched or damaged by the deactivation signal.
[0005]
Electrically operated smoking system according to claim 4, characterized in that the component (201) is an electric fuse.
[0006]
Electrically operated smoking system according to claim 4, characterized by the fact that the component (201) is an electrical switch or digital information that interacts with the set of control circuits and that represents an on / off state for the storage portion.
[0007]
Electrically operated smoking system according to any one of the preceding claims, characterized by the fact that the control circuitry (109) is configured to emit the deactivation signal when the control circuitry detects a malfunction in the system aerosol generator.
[0008]
Electrically operated smoking system according to any one of the preceding claims, characterized in that the aerosol generating element for generating an aerosol from the aerosol-forming substrate is a heater (119) configured to heat the substrate.
[0009]
Cartridge (113) for use in an electrically operated smoking system, the cartridge comprising an aerosol forming substrate (115); and characterized by the fact that the deactivation means (201) to render the cartridge inoperable in the aerosol generating system, the deactivation means configured to be activated by a signal from the aerosol generating system.
[0010]
Cartridge according to claim 9, characterized by the fact that the deactivation means (201) is an electrical component (201) that is configured to be switched or damaged by the signal.
[0011]
Electrically operated smoking device for use with a disposable cartridge (113) containing an aerosol-forming substrate and a deactivation means (201) configured to render the cartridge inoperable in the aerosol generating device in response to a deactivation signal, characterized by fact that the aerosol generating system comprises: control circuitry (109) configured to emit a deactivation signal to the deactivation medium (201) when the amount of aerosol-forming substrate (115) in the storage portion (113) is determined or estimated to be below the limit quantity or when malfunction is detected.
[0012]
Electrically operated smoking device according to claim 11, characterized in that the control circuitry is configured to determine or estimate when an amount of aerosol-forming substrate in the storage portion is below the limit quantity.
[0013]
Method in an electrically operated smoking system characterized by the fact that it comprises a storage portion for storing aerosol-forming substrate, an aerosol-generating element for generating an aerosol from the aerosol-forming substrate, a set of control circuits in communication with the storage portion and deactivation medium associated with the storage portion configured to render the storage portion inoperable in the aerosol generating system in response to a deactivation signal from the control circuitry, the method comprising: sending a deactivation signal from the control circuitry to the deactivation medium following a determination that an amount of the aerosol substrate in the storage portion is below a threshold level or following a determination of an operation inadequate system.

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DK2654471T3|2014-10-20|

US10655938B2|2020-05-19|

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法律状态:
2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2019-08-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2020-04-28| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2020-06-30| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP10252236.4|2010-12-24|

EP10252236A|EP2468118A1|2010-12-24|2010-12-24|An aerosol generating system with means for disabling a consumable|

PCT/EP2011/073793|WO2012085205A1|2010-12-24|2011-12-22|Aerosol generating system with means for disabling consumable|

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