Cartridge for an aerosol generating device with a movable atomizing unit

Abstract

The present invention relates to a cartridge (100) for an aerosol generating device. The cartridge includes a liquid storage portion (122) and an atomization unit (108). The atomization unit includes an atomizer (110). The atomization unit is configured to be movable between a first position and a second position. In the first position, the atomization unit is configured to block fluid communication between the liquid storage portion and the atomizer. In the second position, the atomization unit is configured to maintain fluid communication between the liquid storage portion and the atomizer.

Description

[Technical Field]

[0001] The present invention relates to a cartridge for an aerosol generating device, an aerosol generating system including the cartridge, and a method for activating a cartridge for an aerosol generating device from an inactive delivery and storage state. [Background technology]

[0002] It is known to provide aerosol generation systems for generating inhalable vapors. One type of aerosol generation system currently available on the market includes vaporizers employing a so-called wick and coil arrangement. In these systems, a portion of a capillary wick extends into a liquid reservoir containing the e-liquid to be vaporized. Another portion of the wick is wrapped with a coil of heating wire. When an electric current is applied, the heating wire vaporizes the e-liquid contained within the wick. These aerosol generation systems have several drawbacks, including inconsistent production, inconsistent vapor production, dry burn, variable flavor profiles, energy inefficiency, staining and coke formation on the heating wire and wick, and spitting of liquid from the heating wire into the airflow tube and then into the user's mouth.

[0003] To address some of the aforementioned problems associated with these wick and coil aerosol generation systems, atomization units with ceramic atomizer cores have been developed. The ceramic atomizer core includes a heating element, electrical contacts, and a ceramic atomizer body. The ceramic atomizer body is typically cubic in shape, with the heating element and electrical contacts located on a single surface of the ceramic atomizer body. The ceramic body is porous, and e-liquid is supplied from the liquid reservoir to the heating element through pores present within the ceramic atomizer body. To ensure sufficient liquid is supplied to the heating element and prevent dry burning, the ceramic pores must be relatively large. However, this can have the undesirable effect of excessive liquid being supplied to the heater surface, leading to potential liquid leakage. The viscosity of the e-liquid (which changes with temperature) can also affect the amount of e-liquid delivered to the heating element. This leakage problem can be particularly problematic during shipping and transportation, when the cartridge may be subjected to temperature cycling, low-pressure conditions, and vibration. Traditional methods of addressing this have been to limit the viscosity range that the liquid is dispensed in, to seal the capsule in a blister pack, or to add silicone end caps to the cartridge to prevent the liquid from leaking out of the cartridge, but these methods have their own problems as they can limit the performance of the cartridge or add to packaging costs. Summary of the Invention [Problem to be solved by the invention]

[0004] It would be desirable to have an aerosol generation system or a component of such a system that addresses these discussed problems. It would be desirable to have an aerosol generation system or a component of such a system that prevents or at least reduces the risk of e-liquid leakage from the system or component to the end user during shipping. It would be desirable to have an aerosol generation system or a component of such a system that prevents or at least reduces the risk of e-liquid leakage from the system or component during storage. It would be desirable to have an aerosol generation system or a component of such a system that improves liquid freshness. It would be desirable to have an aerosol generation system or a component of such a system that extends the shelf life of the system or component. It would be desirable to have an aerosol generation system or a component of such a system that reduces manufacturing costs. It would be desirable to have an aerosol generation system or a component of such a system that reduces packaging. [Means for solving the problem]

[0005] The above and further objects of the present invention are achieved by a cartridge for an aerosol generating device that includes a liquid reservoir and an atomizing unit.

[0006] Features described with respect to one embodiment may be equally applied to other embodiments of the invention.

[0007] The invention will now be further described, by way of example only, with reference to the accompanying drawings in which: [Brief explanation of the drawings]

[0008] [Figure 1] Figure 1 shows a side view of a cartridge according to the invention, in which in Figure 1a the atomisation unit is in a first position and in Figure 1b the atomisation unit is in a second position. [Figure 2]Figure 2 shows a cartridge according to the present invention with the atomization unit in a first position, Figure 2a shows the cartridge from a three-quarter view, Figure 2b shows a side view of the cartridge, Figure 2c shows a top view of the cartridge, and Figure 2d shows a bottom view of the cartridge. [Figure 3] Figure 3 shows a cartridge according to the present invention with the atomization unit in a second position, Figure 3a shows the cartridge from a three-quarter view, Figure 3b shows a side view of the cartridge, Figure 3c shows a top view of the cartridge, and Figure 3d shows a bottom view of the cartridge. DETAILED DESCRIPTION OF THE INVENTION

[0009] The atomization unit includes an atomizer. The atomization unit is configured to be movable between a first position and a second position. The atomization unit is configured such that, in the first position, fluid communication between the liquid storage portion and the atomizer is blocked. The atomization unit is configured such that, in the second position, fluid communication between the liquid storage portion and the atomizer is established.

[0010] The cartridge may be provided with an atomizing unit configured to be movable between a first position and a second position, thereby selectively interrupting and establishing fluid communication between the liquid storage portion and the atomizer. The cartridge may be provided with an atomizing unit configured to be movable between a first position and a second position, thereby reversibly interrupting and establishing fluid communication between the liquid storage portion and the atomizer. Interrupting fluid communication between the liquid storage portion and the atomizer may be desirable when the cartridge or an aerosol generation system including the cartridge is in an inactive state. The atomizing unit may be held in the first position or moved to the first position when the cartridge is desired to be in an inactive state. Fluid communication between the liquid storage portion and the atomizer may be desirable when the cartridge is in an active state. The atomizing unit may be held in the second position or moved to the first position when the cartridge is desired to be in an active state.

[0011] The inactive state of a cartridge or an aerosol generation system comprising a cartridge can be a state in which a constant level of liquid aerosol-forming substrate in the cartridge or system is desired. The inactive state of a cartridge or an aerosol generation system comprising a cartridge can be a state in which power is not continuously supplied to the atomizer. The inactive state of a cartridge or an aerosol generation system comprising a cartridge can be a state in which the consumption experience is undesirable. The cartridge or an aerosol generation system comprising a cartridge can be in an inactive state during one or both of the transportation and storage of the cartridge or aerosol generation system comprising a cartridge.

[0012] The active state of a cartridge or an aerosol generation system comprising a cartridge may be a state in which power is continuously or intermittently supplied to the atomizer, such as with every puff. The active state of a cartridge or an aerosol generation system comprising a cartridge may be a state in which a consumption experience is desired. The active state of a cartridge or an aerosol generation system comprising a cartridge may be a state immediately before a consumption experience is desired. The active state of a cartridge or an aerosol generation system may be a state in which an aerosol-forming substrate can be delivered to the atomizer.

[0013] The cartridge may be configured such that the liquid storage portion is sealed when the atomization unit is in the first position. The cartridge may be configured such that the liquid aerosol-forming substrate in the liquid storage portion is not delivered from the liquid storage portion to the atomizer when the atomization unit is in the first position. Fluid communication between the liquid storage portion and the atomizer may be blocked by at least a portion of the atomization unit. The cartridge or an aerosol generation system including the cartridge may be stopped by moving the atomization unit from the second position to the first position.

[0014] When the atomization unit is in the second position, the cartridge may be configured such that the liquid aerosol-forming substrate in the liquid storage portion can be delivered from the liquid storage portion to the atomizer. The cartridge or an aerosol generation system including the cartridge may be activated by moving the atomization unit from the first position to the second position.

[0015] The present cartridge prevents or at least reduces the risk of liquid leakage from the cartridge or an aerosol generation system including the cartridge during shipping to an end user because the atomization unit can be held in the first position during shipping so that the liquid aerosol-forming substrate is confined to the liquid storage portion. The cartridge prevents or at least reduces the risk of liquid leakage from the cartridge or an aerosol generation system including the cartridge during storage because the cartridge can be held in the first position during storage so that the liquid aerosol-forming substrate is confined to the liquid storage portion. The present cartridge or an aerosol generation system including the cartridge improves the freshness of the liquid aerosol-forming substrate because the atomization unit can be sealed in the liquid storage portion, reducing contact with and degradation of environmental agents. The present cartridge or an aerosol generation system including the cartridge has a long shelf life because the atomization unit can be sealed in the liquid storage portion, reducing contact with and degradation of environmental agents. The present cartridge or an aerosol generation system including the cartridge reduces manufacturing costs and packaging because the additional packaging required for conventional sealants, such as blister packs or silicone end cap capsules, is avoided.

[0016] After the cartridge is manufactured, the atomization unit may be continuously maintained in the first position until it is desired that the cartridge or an aerosol generating system including the cartridge be delivered to or used by an end user. In this way, the atomization unit may be kept dry during one or both of transportation and storage. Because the atomization unit may be kept dry, the risk of leakage of the liquid aerosol-forming substrate from the cartridge, particularly from the atomization unit, during one or both of transportation and storage is prevented or at least reduced compared to conventional devices (in which the component that delivers the liquid to the heater is typically immersed in the liquid during one or both of transportation and storage). Because the atomization unit may be kept dry, the shelf life of the atomizer is improved. When a consumption experience is desired, the atomization unit may be moved to the second position so that the liquid aerosol-forming substrate to be vaporized by the atomizer is delivered to the atomization unit. Thus, by providing a cartridge or an aerosol generating system comprising a cartridge of the present invention, the atomization unit can be kept dry during one or both of transportation and storage by maintaining the atomization unit in a first position (achieving more than advantageous effects), while when the cartridge or system is delivered to or used by an end user, moving the atomization unit to a second position allows for the timely supply of liquid aerosol-forming substrate required for consumption to the atomization unit.

[0017] The atomizing unit may be configured to be slidable between a first position and a second position. The atomizing unit may be configured to be pushed from the first position to the second position. The atomizing unit may be configured to be pulled from the second position to the first position.

[0018] The atomization unit may include a support element that may simplify movement between the first position and the second position, and that may improve handling of movement between the first position and the second position, for example, for a user.

[0019] The support element may be configured to support an atomizer. The support element may be configured to receive an atomizer. The support element may be a tray. The tray may include a base. The support element may be a tray configured to be slidable between a first position and a second position. The support element may be a container. The support element may include a housing. The housing of the support element may include a base. The housing of the support element may include one or more walls. As used herein, the term "wall" more generally refers to a surface of an element such as a container, and the wall may be formed from a single panel, or the wall may be formed from two or more abutting or overlapping panels. The housing of the support element may include a base and one or more walls extending from the base. The base and the one or more walls may be integrally formed. The base and the one or more walls may be separate elements attached or fixed to each other. The housing may be a rigid housing. As used herein, the term "rigid housing" is used to mean a self-supporting housing. The housing of the support element may preferably be made from a polymeric material selected from the group consisting of polypropylene, polycarbonate, and copolyesters such as Tritan, which may be a copolymer of dimethyl terephthalate (DMT), cyclohexanedimethanol (CHDM), and 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO).

[0020] The housing of the support element may at least partially surround the atomizer. The housing of the support element may include a receiving section. The receiving section of the housing of the support element may be configured to receive the atomizer.

[0021] The atomization unit may be configured such that in the first position, fluid communication between the liquid storage portion and the atomizer is blocked by at least a portion of the support element. Such a portion of the support element may be part of the support element housing, preferably at least a portion of a wall of the support element housing. Thus, a structurally simple and cost-effective embodiment for blocking fluid communication between the liquid storage portion and the atomizer in the first position is achieved.

[0022] The support element may be made of a liquid-impermeable material. The support element may be made of an inert material. As used herein, an "inert material" may be a material that is stable and non-reactive under conditions to which the cartridge and preferably the liquid storage portion are typically exposed, for example, during one or more of the consumption experience, manufacturing, transportation, or storage. The support element may be made of a polymeric material, preferably selected from the group consisting of polypropylene and polycarbonate. Support elements made of such polymeric materials are simple to manufacture. Manufacturing support elements made of such polymeric materials is cost-effective. Support elements made of such polymeric materials improve handling of the atomization unit when it moves between the first position and the second position.

[0023] The atomization unit may include a handle that can be grasped by a user to move the atomization unit between the first position and the second position. The handle can facilitate movement of the atomization unit between the first position and the second position for the user.

[0024] The atomizer may be configured to be temporarily or permanently attached to the support element. The atomizer may be replaceable. The atomizer may be glued to the support element. One or both of the atomizer and the support element may include mounting means. The mounting means may be configured to connect the atomizer to the support element. The mounting means may be configured to fix the relative position of the atomizer to the support element. The mounting means may be configured to prevent or at least reduce relative movement between the atomizer and the support element when the atomization unit moves between the first position and the second position. The mounting means may include a recess in the support element that matches the dimensions of the atomizer and that can hold the atomization unit. The mounting means may include male and female elements. The mounting means may include a screw and thread mechanism. The mounting means may include a lip and detent. Mounting the atomizer to the support element improves the reliability and accuracy with which fluid communication between the liquid storage and the atomizer is blocked in the first position. Mounting the atomizer to the support element improves the reliability and accuracy of the fluid communication between the liquid reservoir and the atomizer in the second position.

[0025] As used herein, the terms "upstream" and "downstream" are used to describe the relative position of an element, or portion of an element, of a cartridge with respect to the direction in which a user draws on the aerosol-generating article during use.

[0026] The cartridge has two ends: a proximal end through which the aerosol exits the cartridge and is delivered to the user, and a distal end. In use, a user may draw on the proximal end to inhale the aerosol generated by the aerosol-generating article.

[0027] The proximal end may also be referred to as the oral end or downstream end and is downstream of the distal end. The distal end may also be referred to as the upstream end and is upstream of the proximal end.

[0028] The atomizing unit may be configured to be removably insertable into the receiving section of the cartridge. In this way, manufacturing of the cartridge may be improved as the cartridge may be manufactured and assembled in a modular manner.

[0029] The atomizing unit may be configured to be removably insertable into the receiving section of the cartridge. The atomizing unit may be replaceable. A replaceable atomizing unit may improve cost-effectiveness for users, since the atomizing unit can be replaced after extended use or malfunction.

[0030] The receiving section of the cartridge may include an opening. The atomizing unit may be configured to be insertable into the receiving section of the cartridge through the opening of the receiving section. The receiving section may include a cavity configured to receive at least a portion of the atomizing unit, preferably at least a portion of the atomizer.

[0031] The atomization unit may be configured to be movable between a first position and a second position in a direction substantially perpendicular to the longitudinal axis of the cartridge.

[0032] As used herein, the term "longitudinal axis" may refer to the direction of the cartridge extending between the upstream and downstream ends of the cartridge. As used herein, the term "longitudinal axis" may refer to the direction of the cartridge extending between the proximal and distal ends of the cartridge. The longitudinal axis of the cartridge may be the central longitudinal axis of the cartridge.

[0033] The atomizing unit may extend into the cavity of the receiving section in a direction perpendicular to the longitudinal axis of the cartridge. The atomizing unit may be configured to be slidable between a first position and a second position in a direction substantially perpendicular to the longitudinal axis of the cartridge.

[0034] The atomization unit may include a flow control element. The flow control element may include at least one first fluid flow conduit. In a first position, the flow control element may be arranged such that fluid communication between the liquid storage portion and the atomizer is blocked by the flow control element. In a second position, the flow control element may be arranged such that the liquid storage portion and the atomizer are in fluid communication via the first fluid flow conduit.

[0035] The support element may include a flow control element. The housing of the support element may include a flow control element. At least a portion of the wall of the housing of the support element may be a flow control element. At least a portion of the wall of the housing of the support element that abuts the liquid storage portion may be a flow control element. At least a portion of the wall of the housing of the support element disposed adjacent to the liquid storage portion may be a flow control element.

[0036] The flow control element may be configured to abut the liquid storage portion. The flow control element may be configured to be adjacent to the liquid storage portion.

[0037] The flow control element may be made from a fluid impermeable material. The flow control element may be made from an inert material.

[0038] The first fluid flow conduit may include at least one opening in the flow control element. The first fluid flow conduit may penetrate a wall of the housing of the flow control element. The liquid aerosol-forming substrate in the liquid storage portion may be delivered to the atomizer by the first fluid flow conduit when the atomization unit is in the second position. The first fluid flow conduit may extend along the longitudinal axis of the cartridge. The first fluid flow conduit may include a wall. The wall of the first fluid flow conduit may be arranged to align the first fluid flow conduit. The wall of the first fluid flow conduit may direct the flow of the liquid aerosol-forming material from the liquid storage portion to the atomizer.

[0039] The cartridge may include a sealing element. The sealing element may preferably be made of silicone. The sealing element may be disposed proximal to the atomization unit. The liquid storage portion may be disposed proximal to the sealing element. The sealing element may include at least one second fluid flow conduit. In the first position, the first fluid flow conduit of the flow control element and the second fluid flow conduit of the sealing element may be disposed completely offset from each other. In the second position, the first fluid flow conduit of the flow control element and the second fluid flow conduit of the sealing element may be disposed abutting each other so as to form a fluid flow channel. The liquid storage portion and the atomizer may be in fluid communication with each other via the fluid flow channel.

[0040] The sealing element may be at least partially disposed between the atomizing unit and the liquid storage portion. The sealing element may be disposed adjacent to the atomizing unit and the liquid storage portion. The liquid storage portion may include the sealing element. The sealing element may be a base of the liquid storage portion.

[0041] The atomization unit, the sealing element, and the liquid storage portion may be aligned along a central longitudinal axis of the cartridge. The sealing element may be arranged to separate the liquid storage portion and the atomization unit. In the first position, the sealing element may be configured to prevent liquid from being delivered to the atomization unit. The sealing element reduces the risk of leakage of the liquid aerosol-forming substrate into other components of the aerosol generation system that includes the atomization unit and the cartridge.

[0042] The sealing element may be a sheet. The sealing element may be a substantially rectangular sheet. The sealing element may be made from a fluid-impermeable material. The sealing element may be made from an inert material.

[0043] The second fluid flow conduit may include at least one opening in the sealing element. The second fluid flow conduit may penetrate the sealing element. The liquid aerosol-forming substrate of the liquid storage portion may be delivered to the atomizer by the first fluid flow conduit and the second fluid flow conduit. The second fluid flow conduit may extend along the longitudinal axis of the cartridge. The second fluid flow conduit may include a wall. The wall of the second fluid flow conduit may be arranged to align the second fluid flow conduit. The wall of the second fluid flow conduit may direct the flow of the liquid aerosol-forming material from the liquid storage portion to the atomizer.

[0044] In the second position, the first fluid flow conduit of the flow control element and the second fluid flow conduit of the sealing element may be configured to be aligned with one another.

[0045] The fluid flow channels may include walls. The walls of the fluid flow channels may be arranged to align the fluid flow channels. The walls of the fluid flow channels may include walls of the first fluid flow conduit and walls of the second fluid flow conduit. The walls of the fluid flow channel may direct the flow of the liquid aerosol-forming material from the liquid storage portion to the atomizer.

[0046] The cartridge may include a liquid baffle plate. The liquid baffle plate may include at least one perforation. The liquid baffle plate may be disposed proximal to the sealing element. The liquid baffle plate may improve fluid flow direction.

[0047] The liquid baffle plate may be a sheet. The liquid baffle plate may be a substantially rectangular sheet. The liquid baffle plate may be made of a fluid-impermeable material. The liquid baffle plate may be made of an inert material. The liquid baffle plate may be configured to inhibit or regulate flow from a liquid storage portion of the fluid aerosol-forming substrate to the atomizer. The liquid baffle plate may include a plurality of perforations.

[0048] The liquid baffle plate may be at least partially disposed between the sealing element and the liquid storage portion. The liquid baffle plate may be disposed adjacent to the sealing element and the liquid storage portion. The liquid baffle plate may be disposed on the sealing element. The liquid storage portion may include the liquid baffle plate. The atomization unit, the sealing element, the liquid baffle plate, and the liquid storage portion may be aligned along a central longitudinal axis of the cartridge.

[0049] In the second position, fluid can be delivered from the liquid reservoir to the atomizer by at least one perforation and fluid flow channel in the liquid baffle plate.

[0050] One or both of the flow control element and the liquid baffle plate may be made from a polymeric material preferably selected from the group consisting of polypropylene, polycarbonate, and copolyesters such as Tritan.

[0051] Flow control elements made from such polymeric materials can be simple to manufacture. Manufacturing flow control elements made from such polymeric materials can be cost-effective.

[0052] Liquid baffle plates made from such polymeric materials can be simple to manufacture, and manufacturing liquid baffle plates made from such polymeric materials can be cost-effective.

[0053] The cartridge may include a mouthpiece and a cartridge housing. The cartridge housing may include a first compartment, a second compartment, and at least one air inlet. The first compartment may include an atomization unit. The second compartment may include a liquid storage portion. The second compartment may be disposed proximate to the first compartment. The mouthpiece may be disposed proximate to the second compartment.

[0054] The second compartment may be disposed at least partially between the mouthpiece and the first compartment. The second compartment may be disposed adjacent to the mouthpiece and the first compartment. The first compartment, the second compartment, and the mouthpiece may be disposed on a central longitudinal axis of the cartridge.

[0055] The cartridge housing may include a base. The base of the cartridge housing may include an air inlet. The cartridge housing may include one or more walls. The one or more walls of the cartridge housing may extend from the base. The base and the one or more walls may be integrally formed. The base and the one or more walls may be separate elements that are attached or fixed to each other. The housing may be a rigid housing. The base of the cartridge housing may include an air inlet. The cartridge housing may include an opening in the receiving section. The cartridge housing may enclose the first compartment and the second compartment.

[0056] The first compartment may include a housing. The first compartment housing may include a base. The base of the first compartment housing may include an air inlet. The first compartment housing may include one or more walls. The one or more walls of the first compartment housing may extend from the base. The base and the one or more walls of the first compartment housing may be integrally formed. The base and the one or more side walls of the first compartment housing may be separate elements attached or fixed to each other. The first compartment housing may be a rigid housing. The first compartment housing may include an opening in the receiving section. The cartridge housing may include the first compartment housing.

[0057] The second compartment may include a housing. The housing of the second compartment may include a base. The base of the housing of the second compartment may be one or both of a sealing element and a liquid baffle plate. The housing of the second compartment may include one or more walls. The one or more walls of the housing of the second compartment may extend from the base. The base of the second compartment and the one or more walls of the housing may be integrally formed. The base of the second compartment and the one or more walls of the housing may be separate elements attached or fixed to each other. The housing of the second compartment may be a rigid housing. The cartridge housing may include the housing of the second compartment.

[0058] The cartridge housing may include a first compartment housing base, a first compartment wall, and a second compartment wall. The cartridge housing may consist of a first compartment housing base, a first compartment wall, and a second compartment wall. The cartridge housing base may be the first compartment housing base.

[0059] The air intake port may be a semi-open inlet. A semi-open inlet may be an inlet that allows air or fluid flow in one direction, such as into the cartridge, but at least restricts, preferably prohibits, air or fluid flow in the opposite direction. A semi-open inlet preferably allows air to enter the cartridge. Air or liquid may be prevented from exiting the aerosol-generating cartridge through the semi-open inlet. A semi-open inlet may be, for example, a semi-permeable membrane that is permeable to air in only one direction but is airtight and liquid-tight in the opposite direction. A semi-open inlet may also be, for example, a one-way valve.

[0060] The mouthpiece may preferably be made from a polymeric material selected from the group consisting of polypropylene and polycarbonate. The mouthpiece may include an air outlet disposed at a proximal end of the mouthpiece.

[0061] The cartridge may include an airflow channel. The airflow channel may extend from an air inlet in the cartridge housing to an air outlet in the mouthpiece. An aerosol generating device or system including the cartridge may include an airflow channel. The airflow channel may extend from an air inlet in the device or system to an air outlet in the mouthpiece.

[0062] The mouthpiece may include at least a portion of an airflow channel. The airflow channel may extend at least partially through the mouthpiece to an air outlet of the mouthpiece. The airflow channel may extend from the cartridge housing or an air inlet of the device or system to the air outlet of the mouthpiece. The airflow channel may extend through the first compartment and the second compartment. The airflow channel may extend through the atomization unit and the liquid storage section. A user may suck on the mouthpiece to draw the aerosol into their mouth. Ambient air may be drawn into the cartridge and drawn to the user through the airflow channel.

[0063] The cartridge may comprise a locking means, which may be configured to temporarily lock the atomizing unit in one or both of the first and second positions.

[0064] The locking means may be configured to temporarily lock the support element in one or both of the first position and the second position. The locking means may be configured to permanently lock the atomization unit in the second position. The locking means may be configured to permanently lock the support element in the second position. The locking means may prevent positional displacement of the atomization unit relative to one or more of the liquid storage portion, the sealing element, and the liquid baffle plate. The support element may include the locking means. The locking means may be provided to hold the atomization unit in place in one or both of the first position and the second position.

[0065] The locking means may be a mechanical locking means. The mechanical locking means may include a lip and detent. The lip may be engaged with the detent, for example, with a snap fit. The lip may be a resiliently deformable lip. The resiliently deformable lip may be disengaged from the detent by applying sufficient force to overcome the snap fit. Although a mechanical lip and detent are described, it will be understood that other locking means may be provided.

[0066] The locking means improves the accuracy and reliability of breaking and establishing fluid communication between the liquid storage portion and the atomizer by stabilizing the relative positions of the nebulization unit and the liquid storage portion. The locking means optimizes the accuracy and reliability of fluid communication between the liquid storage portion and the atomizer by improving and stabilizing the alignment of the first fluid flow conduit and the second fluid flow conduit in the second position. The locking means reduces the risk of the nebulization unit becoming detached or falling off the cartridge.

[0067] The atomization unit may include a guide element. The guide element may be a sliding mechanism. The guide element may be configured to direct movement between the first position and the second position. The guide element optimizes precision of movement between the first position and the second position. The guide element optimizes ease of movement between the first position and the second position.

[0068] The atomizer may include a heating element and a porous body. The porous body may preferably be made from a ceramic material.

[0069] In the first position, the atomization unit may be configured such that fluid communication between the liquid storage portion and the porous body is blocked, and in the first position, the liquid aerosol-forming substrate in the liquid storage portion may not be delivered to the porous body.

[0070] The porous body may be configured to absorb the liquid aerosol-forming substrate. The porous body may be configured to hold the liquid aerosol-forming substrate. The porous body may be in contact with the heating element. In the second position, the atomization unit may be configured such that the liquid storage portion and the porous body are in fluid communication. The fluid flow channel may extend from the liquid storage portion to the porous body of the atomizer. In the second position, the liquid aerosol-forming substrate in the liquid storage portion may be delivered to the porous body, preferably by the fluid flow channel. In the second position, the absorption surface of the porous body of the atomizer may be in fluid communication with the liquid storage portion. In the second position, the absorption surface may absorb the liquid aerosol-forming substrate from the liquid storage portion of the cartridge. The liquid aerosol-forming substrate may be transported from the absorption surface to the heating surface within the porous body of the atomizer for evaporation. The absorption surface may be disposed adjacent to the fluid flow channel. The absorption surface may be disposed distal to the fluid flow channel.

[0071] A heating element may be disposed on the heated surface of the porous body. The heating element may be configured to evaporate a liquid aerosol-forming substrate absorbed by the porous body of the atomization unit for vaporization. The heated surface of the porous body of the atomizer may be disposed distal to the absorption surface. The absorption surface may be separated from the heated surface of the porous body.

[0072] The porous body may be made from a material selected from the group consisting of silica (SiO2) and calcium silicate (Ca2SiO4). The porous body may be an open-cell porous ceramic body.

[0073] In use, the liquid aerosol-forming substrate delivered to the porous body may be vaporized by a heating element.

[0074] The cartridge may include at least two electrical contacts.

[0075] One or both of the base of the cartridge housing and the base of the first compartment may include an electrical contact. The electrical contact may also be disposed on a heating surface of the porous body. The heating surface may be disposed adjacent to the electrical contact. The heating surface may be disposed proximal to the electrical contact.

[0076] Power may be supplied to the heating element through the electrical contacts preferably when the atomization unit is in the second position, and in the first position, power may not be supplied to the heating element through the electrical contacts.

[0077] The electrical contacts may be made from a material selected from the group consisting of Cu, Zn and Au.

[0078] The porous body may have a substantially cubic shape with six surfaces. The heating element may be substantially flat. The heating element may be disposed on one of the six surfaces of the porous body.

[0079] The absorption surface may be one of the six surfaces, and the heating surface may be another of the six surfaces, preferably disposed on the opposite side of the cubic shaped porous body.

[0080] In the first position, the atomization unit may be arranged so that one or less of the electrical contacts are in contact with the heating element, and in the second position, the atomization unit may be arranged so that at least two of the electrical contacts are in contact with the heating element.

[0081] In the first position, only one or less of the electrical contacts may be in contact with the heating element, so that no power is supplied to the heating element. In the second position, at least two of the electrical contacts may be in contact with the heating element, so that power may be supplied to the heating element. This may ensure that power cannot be supplied to the atomizer when fluid communication between the liquid storage portion and the atomizer is interrupted, so that the risk of thermal damage to the porous body by the heating element is reduced.

[0082] In a second aspect of the present invention, there is provided an aerosol generation system. The aerosol generation system comprises an aerosol generation device. The aerosol generation device comprises the cartridge of the present invention, a device housing, a power supply, and a control element configured to control the power supplied from the power supply. The aerosol generation system further comprises an aerosol-forming substrate. The aerosol-forming substrate is a liquid. The liquid storage portion contains the aerosol-forming substrate.

[0083] The device housing may include a receiving section for the cartridge. The cartridge may be configured to be insertable into the receiving section of the device housing. The device may be configured such that a power supply can provide power to the heating element of the cartridge, preferably by way of electrical contacts on the cartridge.

[0084] The cartridge may be configured as a replaceable consumable item. A user may replace the cartridge when the supply of aerosol-forming substrate in the liquid reservoir is reduced or depleted. A used cartridge may be replaced with another cartridge filled with an appropriate amount of aerosol-forming substrate. A cartridge may also be provided without an aerosol-forming substrate, and a user may fill the liquid reservoir with a desired substrate through a liquid port provided on the cartridge. In some embodiments, the liquid reservoir may not be refillable by a user.

[0085] In a third aspect of the present invention, there is provided a method for activating a cartridge for an aerosol generating device from an inactive delivery and storage state, the method comprising: (a) providing a cartridge according to the invention or an aerosol generation system according to the invention; (b) moving the atomization unit to a first position during one or more of the transport and storage; (c) moving the atomization unit to a second position when a consumption experience is desired.

[0086] The liquid storage portion may be adapted to store the liquid aerosol-forming substrate to be supplied to the atomizer. The liquid storage portion may be configured as a container or reservoir for storing the liquid aerosol-forming substrate. The liquid storage portion may be configured as a replaceable tank or container.

[0087] The liquid reservoir may be of any suitable shape and size. For example, the liquid reservoir may be substantially cylindrical. The cross section of the liquid reservoir may be, for example, substantially circular, oval, square, or rectangular.

[0088] The liquid storage portion may include a housing. The liquid storage portion may include a base. The sealing element may be the base of the liquid storage portion. The sealing element may be the base of the liquid storage portion together with a liquid baffle plate. The housing may include a base and one or more walls extending from the base. The base and the one or more walls may be integrally formed. The base and the one or more walls may be separate elements attached or fixed to each other. The housing may be a rigid housing. The housing of the second compartment may include the housing of the liquid storage portion. The cartridge housing may include the housing of the liquid storage portion. The liquid storage portion may include one or more flexible walls. The flexible walls may be configured to fit the volume of the liquid aerosol-forming substrate stored in the liquid storage portion. The housing of the liquid storage portion may include any suitable material. The liquid storage portion may include a substantially fluid-impermeable material. The housing of the liquid storage portion may include a transparent or translucent portion so that the liquid aerosol-forming substrate stored in the liquid storage portion is visible to a user through the housing. The liquid reservoir may be configured such that the aerosol-forming substrate stored therein is protected from ambient air. The liquid reservoir may be configured such that the aerosol-forming substrate stored therein is protected from light. This may reduce the risk of substrate deterioration and may also maintain a high level of hygiene.

[0089] The liquid reservoir may be substantially sealed. The liquid reservoir may include one or more semi-open inlets, which may allow ambient air to enter the liquid reservoir. The one or more semi-open inlets may be semi-permeable membranes or one-way valves that are permeable to allow ambient air to enter the liquid reservoir and impermeable to substantially prevent air and liquid inside the liquid reservoir from exiting the liquid reservoir. The one or more semi-open inlets may allow air to pass into the liquid reservoir under certain conditions. The liquid reservoir may be refillable. Alternatively, the liquid reservoir may be configured as a replaceable liquid reservoir.

[0090] As used herein, "aerosol-generating device" relates to a device that interacts with an aerosol-forming substrate to generate an aerosol. The aerosol-generating device may be an inhalation device that interacts with an aerosol-forming substrate to generate an aerosol that can be inhaled directly through the user's mouth into the user's lungs. The aerosol-generating device may be a holder. The device may be an electrically heated device.

[0091] The heating element may be configured to heat the liquid aerosol-forming substrate and vaporize at least a portion of the liquid aerosol-forming substrate to form an aerosol. The heating element may be, for example, a mesh heater or a metal plate heater. The heater may be, for example, a resistance heater that receives electrical power and converts at least a portion of the received electrical power into thermal energy. The heating element may be configured as an induction heating element. The atomizer may include only a single heating element or multiple heating elements. The temperature of the heating element or element is preferably controlled by an electrical circuit.

[0092] The portion of the heating element in contact with the aerosol-forming substrate is heated as a result of an electric current being passed through the heating element. The electric current is supplied by a power source, such as a battery. In one embodiment, this portion of the heating element is configured to reach a temperature of about 300°C to about 550°C during use. Preferably, the heating element is configured to reach a temperature of about 320°C to about 350°C.

[0093] Preferably, at least one heating element comprises an electrically resistive material. Suitable electrically resistive materials include, but are not limited to, semiconductors such as doped ceramics, "conductive" ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, alloys, and composites made of ceramic and metallic materials. Such composites may include doped or undoped ceramics. An example of a suitable doped ceramic is doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, nickel, and platinum group metals. Examples of suitable metal alloys include stainless steel, nickel-, cobalt-, chromium-, aluminum-, titanium-, zirconium-, hafnium-, niobium-, molybdenum-, tantalum-, tungsten-, tin-, gallium-, manganese-, and iron-containing alloys, as well as nickel-, iron-, cobalt-, and stainless steel-based superalloys, Timetal®, and iron-manganese-aluminum-based alloys. In composite materials, the electrically resistive material may optionally be embedded in, encapsulated in, or coated with an insulating material, or vice versa, depending on the required energy transfer kinetics and external physicochemical properties. The heating element is preferably made from a nickel-chromium (NiCr) alloy.

[0094] As used herein, the term "aerosol-forming substrate" is used to describe a substrate that, upon heating, can release a volatile compound capable of forming an aerosol. The aerosol generated from the aerosol-forming substrates described herein may or may not be visible and may include vapor (e.g., fine particles in the gaseous state of a substance that is normally liquid or solid at room temperature), as well as liquid droplets of the gas and condensed vapor. The aerosol-forming substrate may be held within the liquid storage portion of the cartridge.

[0095] The aerosol-forming substrate is preferably a liquid aerosol-forming substrate. A liquid aerosol-forming substrate is a substrate that is liquid at an ambient temperature, for example, from about 5° C. to about 45° C., preferably from about 15° C. to about 30° C. Liquid aerosol-forming substrates are understood to include liquid solutions, suspensions, dispersions, and the like.

[0096] Suitable aerosol-forming substrates may include plant-derived materials. For example, the aerosol-forming substrate may include tobacco or a tobacco-containing material containing volatile tobacco flavor compounds that are released from the aerosol-forming substrate upon heating. Additionally or alternatively, the aerosol-forming substrate may include a non-tobacco-containing material. The aerosol-forming substrate may include at least one aerosol former. Examples of aerosol formers include polyhydric alcohols (such as triethylene glycol, 1,3-butanediol, propylene glycol, and glycerin), esters of polyhydric alcohols (such as glycerol monoacetate, diacetate, or triacetate), and aliphatic esters of monocarboxylic, dicarboxylic, or polycarboxylic acids (such as dimethyl dodecanedioate and dimethyl tetradecanedioate). The aerosol-forming substrate may include a single aerosol former. Alternatively, the aerosol-forming substrate may include a combination of two or more aerosol formers. As used herein, the term "aerosol former" is used to describe any suitable known compound or mixture of compounds that facilitates the formation of an aerosol upon use and is substantially resistant to thermal decomposition at the use temperature of the aerosol-generating article. The aerosol-forming substrate may include other additives and ingredients (such as flavorings). Preferably, the aerosol-forming substrate includes nicotine. In some embodiments, the aerosol-forming substrate includes glycerol, propylene glycol, water, nicotine, and optionally one or more flavorings. Preferably, the aerosol-forming substrate includes propylene glycol, glycerol, water, and one or more flavorings. The aerosol-forming substrate may include cannabis-based compounds such as tetrahydrocannabinol (THC) and cannabidiol (CBD).

[0097] The power source may be any suitable power source, for example, a DC voltage source such as a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source may be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery (e.g., a lithium-cobalt battery, a lithium-iron-phosphate battery, a lithium-titanate battery, or a lithium-polymer battery).

[0098] The control element may be a simple switch, or it may be an electrical circuit and may include one or more microprocessors or microcontrollers.

[0099] FIG. 1 shows a side view of a cartridge (100) according to the present invention. The cartridge comprises a first compartment (102), a second compartment (104), and a mouthpiece (106). The first compartment includes an atomization unit (108). The atomization unit (108) includes an atomizer (110). The atomizer includes a porous body (112) and a heating element (114). The atomization unit further includes a slidable support element (116). The support element (116) includes a flow control element (118) and a second fluid flow conduit (120). The second compartment includes a liquid reservoir (122). The second compartment includes a liquid baffle plate (124) and a sealing element (126). The sealing element includes a second fluid flow conduit (128). The liquid baffle plate includes a plurality of perforations (130). The cartridge includes a housing (132). The cartridge housing includes a base (134). The base of the cartridge housing includes an air inlet (not shown). The cartridge includes electrical contacts (136). The cartridge housing encloses a first compartment and a second compartment.

[0100] The mouthpiece is disposed at the proximal end (138) of the cartridge. The cartridge housing base is disposed at the distal end (140) of the cartridge. The mouthpiece (106) is disposed proximal to the second compartment (104). The second compartment (104) is disposed proximal to the first compartment (102). The first compartment, second compartment, and mouthpiece are disposed on a central longitudinal axis (142) of the cartridge.

[0101] FIG. 1a shows a cartridge with the atomization unit in a first position. Fluid communication between the liquid storage portion and the atomizer is blocked by a flow control element. The flow control element abuts the first fluid flow conduit of the sealing element to prevent delivery of the liquid aerosol-forming substrate from the liquid storage portion to the atomizer. The slidable support element is disposed laterally offset from the central longitudinal axis of the cartridge. The atomizer heating element is in contact with a single electrical contact.

[0102] Because fluid communication between the liquid storage portion and the atomizer is interrupted, the atomizer's porous body remains dry. Therefore, the liquid aerosol-forming substrate cannot leak from the atomizer's porous body. Because the porous body does not retain the liquid aerosol-forming substrate, aerosol cannot be generated. Because only one electrical contact is in contact with the heating element, power cannot be supplied to the heating element. The cartridge is in an inactive state. The cartridge configuration shown in Figure 1a is used when transporting or storing the cartridge.

[0103] The atomizing unit is shown protruding from the cartridge. A user may push the atomizing unit inwardly into the cartridge housing to move the atomizing unit to the second position shown in Figure 1b.

[0104] FIG. 1b shows the cartridge with the atomization unit in a second position. Fluid communication between the liquid storage portion and the atomizer is established. The first fluid flow conduit of the flow control element is disposed to abut the second fluid flow conduit of the sealing element. A fluid flow channel is formed by the perforations of the liquid baffle plate, the second fluid flow conduit of the sealing element, and the first fluid flow conduit of the flow control element. The liquid aerosol-forming substrate of the liquid storage portion is delivered to the porous body of the atomizer by the fluid flow channel. The porous body of the atomizer is immersed in the liquid aerosol-forming substrate. The atomization unit is shown in plan view with the cartridge housing.

[0105] Because both electrical contacts are in contact with the heating element, a closed electrical circuit can be formed when the cartridge is connected to a power source. The liquid aerosol-forming substrate absorbed by the porous body of the atomizer can be vaporized to generate an aerosol. When the cartridge is part of an aerosol-generating device, a user can suck on the mouthpiece to draw air into the air inlet, and the formed aerosol can be inhaled through the air outlet (not shown) of the mouthpiece.

[0106] The cartridge in Figure 1b is in an active state. The cartridge configuration shown in Figure 1b is adopted when the cartridge or an aerosol generation system including the cartridge is delivered to a user. When the cartridge in the configuration shown in Figure 1b is part of an aerosol generation system, a consumption experience can be delivered to the user.

[0107] Figures 2a and 2b show a three-quarter view and a side view of the cartridge (100) with the atomization unit (108) in the first position, as discussed in connection with Figure 1a. Figures 2a and 2b more clearly show the multiple perforations (130) in the liquid baffle plate (124). Additionally, Figure 2a shows the air outlet (144) of the mouthpiece (106).

[0108] Figure 2c shows a layered top view of the cartridge. Figure 2c illustrates primarily the relative arrangement of the perforations (130) in the liquid baffle plate (124), the first fluid conduit (120), and the second fluid conduit (128) in a first position. The first fluid conduit is shown laterally offset from the second fluid conduit. The first fluid conduit is not aligned with the second fluid conduit. The first and second fluid conduits do not form a fluid flow channel. Fluid communication between the liquid reservoir and the atomizer is blocked by the flow control element. The liquid aerosol-forming substrate may not be delivered to the atomizer.

[0109] FIG. 2d shows a bottom view of the cartridge illustrating the electrical contact configuration.

[0110] Figures 3a and 3b show a three-quarter view and a side view of the cartridge (100) with the atomization unit (108) in the second position, as discussed in connection with Figure 1b. Figures 3a and 3b more clearly show the multiple perforations (130) in the liquid baffle plate (124). Additionally, Figure 3a shows the air outlet (144) of the mouthpiece (106) and the position of the atomization unit (108) within the receiving section.

[0111] Figure 3c shows a layered top view of the cartridge. Figure 3c illustrates the relative arrangement of the perforations (130) in the liquid baffle plate (124), the first fluid conduit, and the second fluid conduit (128) in the second position. The first fluid conduit is shown abutting the second fluid conduit. The first fluid conduit is aligned with the second fluid conduit. The first and second fluid conduits form a fluid flow channel. Fluid communication between the liquid storage portion (122) and the atomizer proceeds through the fluid flow channel. The liquid aerosol-forming substrate is delivered to the porous body (112) of the atomizer.

[0112] FIG. 3d shows a bottom view of the cartridge illustrating the electrical contact configuration.

Claims

1. A cartridge for an aerosol generating device, comprising: A liquid storage portion and an atomization unit are provided, the atomization unit includes an atomizer; The atomization unit is configured to be movable between a first position and a second position; the atomization unit is configured such that, in the first position, fluid communication between the liquid storage portion and the atomizer is blocked; The cartridge, wherein the atomization unit is configured such that, in the second position, the liquid storage portion and the atomizer are in fluid communication.

2. The cartridge of claim 1 , wherein the atomizing unit is configured to be removably insertable into a receiving section of the cartridge.

3. The cartridge according to any one of claims 1 to 2, wherein the atomization unit is configured to be movable between the first position and the second position in a direction substantially perpendicular to the longitudinal axis of the cartridge.

4. 4. The cartridge of claim 1, wherein the atomization unit includes a flow control element, the flow control element including at least one first fluid flow conduit, and wherein, in the first position, the flow control element is arranged such that fluid communication between the liquid storage portion and the atomizer is blocked by the flow control element, and in the second position, the flow control element is arranged such that the liquid storage portion and the atomizer are in fluid communication via the first fluid flow conduit.

5. 5. The cartridge of claim 4, wherein the cartridge comprises a sealing element, preferably made of silicone, disposed proximal to the atomization unit, the liquid storage portion disposed proximal to the sealing element, the sealing element including at least one second fluid flow conduit, wherein in the first position, the first fluid flow conduit of the flow control element and the second fluid flow conduit of the sealing element are disposed completely offset from each other, and in the second position, the first fluid flow conduit of the flow control element and the second fluid flow conduit of the sealing element are disposed abutting each other to form a fluid flow channel, and the liquid storage portion and the atomizer are fluidly connected by the fluid flow channel.

6. The cartridge of claim 5 , wherein the cartridge comprises a liquid baffle plate, the liquid baffle plate including at least one perforation, the liquid baffle plate being disposed proximate to the sealing element.

7. 7. A cartridge according to claim 4, wherein one or both of the flow control element according to claim 4 and claim 5 and the liquid baffle plate according to claim 6 are preferably made from a polymeric material selected from the group consisting of polypropylene, polycarbonate, and copolyester.

8. A cartridge according to any one of claims 1 to 7, wherein the cartridge comprises a mouthpiece and a cartridge housing, the cartridge housing including a first compartment, a second compartment, and at least one air intake port, the first compartment including the atomization unit, the second compartment including the liquid storage portion, the second compartment being disposed proximal to the first compartment, and the mouthpiece being disposed proximal to the second compartment.

9. The cartridge according to any one of claims 1 to 8, wherein the cartridge includes a locking means configured to temporarily lock the atomizing unit in one or both of the first position and the second position.

10. The cartridge of any one of claims 1 to 9, wherein the atomizer comprises a heating element and a porous body, preferably the porous body being made from a ceramic material.

11. The cartridge of claim 10 , wherein the cartridge comprises at least two electrical contacts.

12. 12. A cartridge as described in any one of claims 10 and 11, wherein the porous body has a substantially cubic shape including six surfaces, the heating element is substantially flat, and the heating element is disposed on one of the six surfaces of the porous body.

13. 13. The cartridge according to claim 11 or 12, wherein, in the first position, the atomization unit is arranged so that one or less of the electrical contacts are in contact with the heating element, and in the second position, the atomization unit is arranged so that at least two of the electrical contacts are in contact with the heating element.

14. 1. An aerosol generating system comprising: an aerosol generating device comprising the cartridge according to any one of claims 1 to 13, a device housing, a power supply, and a control element configured to control the supply of power from the power supply; An aerosol-generating system comprising: an aerosol-forming substrate, the aerosol-forming substrate being a liquid, and the liquid storage portion comprising the aerosol-forming substrate.

15. 1. A method for activating a cartridge for an aerosol generating device from an inactive delivery and storage state, comprising the steps of: (c) providing a cartridge according to any one of claims 1 to 13 or an aerosol generating system according to claim 14; (d) moving the atomization unit to the first position during one or more of transportation and storage; (c) moving the atomization unit to the second position when a consumption experience is desired.

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