Aerosol generator

Abstract

A heating system (110) for an aerosol supply system, comprising: a first heating device comprising a first heater (504a) electrically connected to a first switching group; and a second heating device comprising a second heater (504b) electrically connected to the second switch group, and wherein the first switch group and the second switch group share at least one switch (502a).

Description

Technical Field

[0001] This invention relates to an aerosol generator for an aerosol supply device. The invention also relates to an aerosol supply device, an aerosol supply system, a method for forming an aerosol generator for an aerosol supply device, and a blank for forming an aerosol generator for an aerosol supply device. Background Technology

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

[0003] Aerosol supply systems covering the aforementioned devices or products are known. Common systems use a heater to generate an aerosol from a suitable medium, which is then inhaled by a user. Often, the medium used needs to be replaced or changed to provide different aerosols for inhalation. Resistance heating systems are known to be used as heaters to generate aerosols from a suitable medium. Summary of the Invention

[0004] According to one aspect, a heating system for an aerosol supply system is provided, comprising: a first heating device including a first heater electrically connected to a first switch group; and a second heating device including a second heater electrically connected to a second switch group, wherein the first switch group and the second switch group share at least one switch.

[0005] Therefore, both the first heating device and the second heating device include at least one of the same switches, and each of the first heater and the second heater is electrically connected to the same switch.

[0006] The heating system may include two switches that are shared by the first switch group and the second switch group.

[0007] The first and second switch groups may each include multiple switches. For example, each switch group may include two switches. Alternatively, each switch group may include three or more switches.

[0008] Each switch group may include a high-side switch configured to control the voltage input of the aerosol supply system. Each switch group may include a low-side switch connected to ground of the aerosol supply system. In each heating device, the corresponding heater and each switch in the switch group may be arranged in series. The heating system may be arranged such that each switch in each switch group must be turned on to activate the heater of the heating device including that switch group.

[0009] One or more switches may be MOSFETs. One or more switches in each switch group may be MOSFETs.

[0010] The heating system can be arranged such that each heater can be controlled independently. The heating system can be configured such that the heaters can operate sequentially. The heating system can be configured such that the heaters can operate in pairs.

[0011] The heating system may include: a third heating device, comprising a third heater electrically connected to a third switch group; and a fourth heating device, comprising a fourth heater electrically connected to a fourth switch group, wherein the first switch group and the second switch group share at least one switch. The third switch group and an optional other switch group may further share at least one switch.

[0012] The heating system may include: a third heating device, including a third heater electrically connected to a third switch group; and a fourth heating device, including a fourth heater electrically connected to a fourth switch group, wherein the first switch group and the second switch group share at least one switch; and wherein the third switch group and the fourth switch group share at least one switch.

[0013] The heating system may include multiple heating devices, each heating device including a heater electrically connected to a corresponding switch group, wherein half of the switches in the switch group share at least one switch, and the other half of the switches in the switch group share at least one switch.

[0014] The heating system may include N heating devices, each of which is an Nth heater electrically connected to the Nth switch group, wherein at least one switch is shared by N / 2 switch groups; The heating system may include ten heating devices, each of which includes a heater electrically connected to a corresponding switch group, wherein the first to fifth switch groups share a single switch, and the sixth to tenth switch groups share a single switch.

[0015] According to one aspect, an article is provided for use with an aerosol supply system comprising a heater of a heating system according to any one of the preceding claims, the article comprising an aerosol generating material.

[0016] The product may also include a switch for the heating system.

[0017] According to one aspect, an article is provided for use with an aerosol supply system including the heating system described above, the article comprising an aerosol generating material.

[0018] Aerosol-generating materials may contain gels.

[0019] Aerosol-generating materials can be located on a substrate.

[0020] The substrate may include a metal foil, optionally an aluminum foil.

[0021] Each heater can be configured as a trace on the substrate. Each heater can be configured as a trace on the corresponding substrate. The trace can be a resistance heating trace.

[0022] Each heater can be arranged to heat the corresponding part of the aerosol-generating material.

[0023] According to one aspect, an aerosol supply system is provided, including an aerosol supply device and the aforementioned articles.

[0024] According to one aspect, an aerosol supply device including the aforementioned heating system is provided.

[0025] According to one aspect, an aerosol supply system is provided, including an article and the aforementioned aerosol supply device.

[0026] According to one arrangement, an aerosol supply system is provided that includes a plurality of heating devices, each heating device including a heater and a switch group, wherein each switch group includes at least one switch shared between the switch group and at least one other switch group.

[0027] An aerosol supply system may include four heating devices. An aerosol supply system may include five or more heating devices. An aerosol supply system may include ten heating devices.

[0028] The aerosol supply system may include ten heating devices, each heating device including a corresponding switch group, wherein the first to fifth switch groups share a single switch, and the sixth to tenth switch groups share a single switch.

[0029] According to one arrangement, a heating device is provided for an aerosol supply system comprising a plurality of heaters and a plurality of switches, wherein the heating device comprises a greater number of heaters than the number of switches, and wherein the heaters and switches are arranged such that each heater can be controlled independently.

[0030] The heating device may include six heaters and five switches. The heating device may include ten heaters and seven switches. The heating device may include twelve heaters and seven switches. The heating device may include sixteen heaters and eight switches.

[0031] At least one of the multiple switches is operatively connected to two or more of the multiple heaters, and wherein at least one of the multiple heaters is operatively connected to two or more of the multiple switches.

[0032] Operational connection refers to the electrical connection between corresponding components.

[0033] Each of the multiple heaters can be operatively connected in series with at least two of the multiple switches.

[0034] Each of the multiple heaters can be arranged as part of the heating of the aerosol-generating material.

[0035] According to one aspect, an aerosol supply system is provided, comprising: an aerosol generating material and a heating device as described above, wherein each heater is arranged to heat a portion of the aerosol generating material.

[0036] In any of the above embodiments, the exterior of the article may have a length, a width perpendicular to the length, and a depth perpendicular to the length and the width, wherein the length is greater than or equal to the width, and wherein the width is greater than the depth.

[0037] In any of the above embodiments, the aerosol generator may include a support configured to support a resistance heating layer, wherein the resistance heating layer includes a heater.

[0038] In any of the above embodiments, the support may include a support layer.

[0039] In any of the above embodiments, the support may be electrically insulated.

[0040] In any of the above embodiments, the support may include at least one of paper and card.

[0041] In any of the above embodiments, the aerosol generating material is in the form of an aerosol generating layer.

[0042] In any of the above embodiments, the aerosol-generating material can be in direct contact with the resistance heating layer.

[0043] In any of the above embodiments, the aerosol-generating material can be in indirect contact with the resistance heating layer. In any of the above embodiments, the aerosol-generating layer can be in indirect contact with the resistance heating layer.

[0044] In any of the above embodiments, the resistance heating layer and the support layer define the substrate.

[0045] In any of the above embodiments, the aerosol generator may include a layered component, which includes a resistance heating layer and a support layer.

[0046] In any of the above embodiments, the layered member may include an aerosol-generating material. In any of the above embodiments, the layered member may include the aerosol-generating layer.

[0047] In any of the above embodiments, the support layer may include a card layer.

[0048] In any of the above embodiments, the first type of electrical contact may be configured to be electrically connected to the device electrical connector, and the second type of electrical contact may be configured to be electrically connected to the device electrical connector.

[0049] In any of the above embodiments, the support may define the exposed contact area of ​​the first type of electrical contact.

[0050] In any of the above embodiments, the exposed contact area may be a first exposed contact area, and the support may define a second exposed contact area for the second type of electrical contact.

[0051] In any of the above embodiments, the aerosol generating material can be a continuous aerosol generating material. In any of the above embodiments, the aerosol generating layer can be a continuous aerosol generating layer.

[0052] In any of the above embodiments, the aerosol generating material can be a continuous aerosol generating material. In any of the above embodiments, the aerosol generating layer can be a discontinuous aerosol generating layer.

[0053] In any of the above embodiments, the aerosol generating material may include multiple discrete aerosol generating portions. In any of the above embodiments, the aerosol generating layer may include multiple discrete aerosol generating portions.

[0054] In any of the above embodiments, the resistance heating element is one of a plurality of resistance heating elements forming a plurality of heaters.

[0055] In any of the above embodiments, one of the discrete aerosol generating portions is associated with a corresponding one of the plurality of resistance heating elements.

[0056] In any of the above embodiments, the aerosol generating layer may include at least one of dots, strips, and patches.

[0057] In any of the above embodiments, wherein the resistance heating element is a first heating element and the resistance heating layer forms a second resistance heating element, each resistance heating element providing a conductive path for resistance heating a portion of the aerosol generating material to generate an aerosol at a corresponding portion of the aerosol generating material.

[0058] In any of the above embodiments, wherein the resistance heating element is a first heating element and the resistance heating layer forms a second resistance heating element, each resistance heating element providing a conductive path for resistance heating of a portion of the aerosol generating material to generate aerosol at a corresponding portion of the aerosol generating layer.

[0059] In any of the above embodiments, the resistance heating layer forms an array of resistance heating elements, which includes at least a first resistance heating element and a second resistance heating element.

[0060] In any of the above embodiments, the first type of electrical contact and the second type of electrical contact are each configured to allow current to be supplied independently to each of the resistance heating elements.

[0061] In any of the above embodiments, the aerosol generating layer comprises a membrane or gel layer containing the aerosol generating material.

[0062] In any of the above embodiments, the aerosol generator includes a plurality of first-type electrical contacts, wherein each heating element includes a separate first-type electrical contact.

[0063] In any of the above embodiments, the aerosol generator includes a plurality of second-type electrical contact elements, wherein each resistance heating element includes a separate second-type electrical contact.

[0064] In any of the above embodiments, the aerosol generator includes a single second-type electrical contact.

[0065] In any of the above embodiments, a single second-type electrical contact is shared among each of these resistance heating elements.

[0066] In any of the above embodiments, the resistance heating element is formed by at least one of the following: cutting the resistance heating layer; chemically etching the resistance heating layer; forming or pressing the resistance heating layer in a substrate; and printing the resistance heating layer.

[0067] In any of the above embodiments, the resistance heating layer is in the form of a foil.

[0068] According to one aspect, an aerosol generator for an aerosol supply device is provided, the aerosol generator comprising: Aerosol generating materials; A resistance heating layer includes a resistance heating element configured to heat at least a portion of an aerosol generating material to generate an aerosol. Type I electrical contacts; and Second type of electrical contact; and The resistance heating element is at least part of the conductive path between the first type of electrical contact and the second type of electrical contact. The heating system can be arranged such that each switch in each switch group must be turned on to turn on the heater of the heating device including the switch group.

[0069] In any of the above embodiments, an aerosol generating layer comprising an aerosol generating material is provided.

[0070] According to one aspect, an aerosol supply device is provided, which is configured to receive an aerosol generator or an article of manufacture for any of the aforementioned aerosol supply devices.

[0071] According to one aspect, an aerosol supply system is provided, including an aerosol generator or article for any of the aforementioned aerosol supply devices, and any of the aforementioned aerosol supply devices. Attached Figure Description

[0072] Various embodiments will now be described by way of example only with reference to the accompanying drawings, in which: Figure 1 This is a schematic 3D diagram of an aerosol supply system; Figure 2 yes Figure 1 A schematic perspective view of an aerosol supply system containing aerosol generating materials; Figure 3 yes Figure 2 A schematic perspective view of the first side of the aerosol generator for the product; Figure 4 yes Figure 3 A schematic perspective view of a portion of the second side of an aerosol generator; Figure 5 Aerosol supply systems (such as) Figure 1 A schematic block diagram of the system shown in the figure; Figure 6 yes Figure 2 A schematic partially exploded perspective view of the product, in which the aerosol generator is shown in the opposite direction to the assembly orientation and spaced apart from other components; Figure 7 It is another aerosol generator (e.g.) Figure 3 A schematic cross-sectional view of the aerosol generator shown. Figure 8 yes Figure 3 A schematic plan view of the heating element of an aerosol generator; Figure 9 It has multiple heating elements Figure 3 A schematic plan view of the resistance heating layer of an aerosol generator; Figure 10 It shows an aerosol generator (e.g.) Figure 3 A flowchart of the method for generating an aerosol (as shown); Figure 11 This is an exploded 3D view of the aerosol generator. Figure 12 This is a schematic three-dimensional view of the resistance heating layer of the aerosol generator. Figure 13 This illustrates an aerosol generator (e.g.) Figure 3 A flowchart of a method for generating an aerosol generator; Figure 14 This illustrates an aerosol generator (e.g.) Figure 3 A flowchart of a method for generating an aerosol generator; Figure 15 This illustrates an aerosol generator (e.g.) Figure 3 A flowchart of a method for generating an aerosol generator; Figure 16 This is a schematic three-dimensional view of the resistance heating layer of the aerosol generator. Figure 17 This is a schematic plan view of the heating element of an aerosol generator; Figure 18 This is a schematic plan view of the heating element of an aerosol generator; Figure 19 yes Figure 2 A schematic perspective view of a portion of the aerosol generator for the product; Figure 20 yes Figure 1 A schematic perspective view of the connector of the aerosol supply device in an aerosol supply system; Figure 21 yes Figure 1 A schematic side view of an aerosol generation system; Figure 22 This illustrates an aerosol generator (e.g.) Figure 3 A flowchart of a method for generating an aerosol generator; Figures 23 to 25 The aerosol generator in the process of forming is shown; Figures 26 to 30 A schematic diagram of the heating system of the aerosol supply system is shown. Detailed Implementation

[0073] As used herein, the term "delivery mechanism" is intended to encompass systems that deliver substances to users, including: non-combustible aerosol supply systems (such as electronic cigarettes, tobacco heating products, and mixing systems) that release compounds from aerosolizable materials without combustion to generate aerosols using combinations of aerosolizable materials; and articles comprising aerosolizable materials and configured for use in one of these non-combustible aerosol supply systems.

[0074] According to this disclosure, a "non-combustible" aerosol supply system is an aerosol supply system in which the aerosol generating material is non-combustible or non-ignitable in order to facilitate the delivery of at least one substance to a user.

[0075] In some implementations, the delivery system is a non-combustible aerosol supply system, such as a powered non-combustible aerosol supply system.

[0076] In some implementations, the non-combustible aerosol delivery system is an electronic cigarette, also known as a vapor device or electronic nicotine delivery system (END), but it should be noted that the presence of nicotine in the aerosol generating material is not necessary.

[0077] In some implementations, the non-combustible aerosol supply system is a heating system for the aerosol generating material, also known as a heated non-combustible system. An example of such a system is a tobacco heating system.

[0078] In some embodiments, a non-combustible aerosol supply system is a mixing system for generating aerosols using a combination of aerosol-generating materials, one or more of which can be heated. Each of the aerosol-generating materials may be in, for example, solid, liquid, or gel form, and may or may not include nicotine. In some embodiments, the mixing system includes liquid or gel aerosol-generating materials and solid aerosol-generating materials. Solid aerosol-generating materials may include, for example, tobacco or non-tobacco products.

[0079] Typically, a non-combustible aerosol supply system may include a non-combustible aerosol supply device and consumables used with the non-combustible aerosol supply device.

[0080] In some embodiments, this disclosure relates to consumables comprising aerosol-generating materials and configured for use with non-combustible aerosol supply devices. Throughout this disclosure, these consumables are sometimes referred to as articles.

[0081] In some embodiments, a non-combustible aerosol supply system, such as its non-combustible aerosol supply device, may include a power supply and a controller.

[0082] In some embodiments, a non-combustible aerosol supply system may include an area for receiving consumables, an aerosol generator, an aerosol generation area, a housing, a nozzle, a filter, and / or an aerosol modifier.

[0083] In some embodiments, consumables used with non-combustible aerosol supply devices may include aerosol generating materials, aerosol generating material storage areas, aerosol generating material delivery components, aerosol generators, aerosol generating areas, housings, packaging paper, filters, nozzles, and / or aerosol modifiers.

[0084] As used herein, the term "aerosol-generating material" (which is sometimes referred to herein as aerosolizable material) is a material capable of generating aerosols, for example, when heated, irradiated, or otherwise given energy. Aerosol-generating materials may be in the form of, for example, solid, liquid, or semi-solid (such as gel), and may or may not contain active substances and / or fragrances.

[0085] In some embodiments, the substance to be delivered includes an active substance (sometimes referred to herein as an active compound).

[0086] Aerosol-generating materials may include one or more active substances and / or flavoring agents, one or more aerosol-forming agent materials, and optionally one or more other functional materials.

[0087] Aerosol-generating materials may include binders (such as gelling agents) and aerosol-forming agents. Optionally, a substance to be transported and / or a filler may also be present. Optionally, a solvent (such as water) may also be present, and one or more other components of the aerosol-generating material may be soluble in the solvent or insoluble in the solvent. In some embodiments, the aerosol-generating material is substantially free of plant material. Specifically, in some embodiments, the aerosol-generating material is substantially free of tobacco.

[0088] Aerosol-generating materials may include or be in the form of aerosol-generating membranes. Aerosol-generating membranes may include binders (such as gelling agents) and aerosol-forming agents. Optionally, a substance to be transported and / or fillers may also be present. Aerosol-generating membranes may be substantially free of plant material. Specifically, in some embodiments, the aerosol-generating material is substantially free of tobacco.

[0089] The aerosol-generating membrane can have a thickness of about 0.015 mm to about 1 mm. For example, the thickness can be in the range of about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm.

[0090] The aerosol-generating membrane can be continuous. For example, the membrane may include or may be a continuous sheet of material.

[0091] Aerosol-generating membranes can be discontinuous. For example, an aerosol-generating membrane may include one or more discrete portions or regions of aerosol-generating material, such as points, strips, or lines that can be supported on a support. In this embodiment, the support may be planar or non-planar.

[0092] Aerosol-generating membranes can be formed by combining a binder (such as a gelling agent) with a solvent (such as water), an aerosol forming agent, and one or more other components (such as one or more substances to be transported) to form a slurry, and then heating the slurry to atomize at least some of the solvent to form an aerosol-generating membrane.

[0093] The slurry can be heated to remove at least about 60%, 70%, 80%, 85%, or 90% of the solvent.

[0094] The aerosol-generating material can be an "amorphous solid." In some embodiments, the amorphous solid is a "monolithic solid." The aerosol-generating material can be non-fibrous or fibrous. In some embodiments, the aerosol-generating material can be a dried gel. The aerosol-generating material can be a solid material that can retain some fluid (such as a liquid) within it. In some embodiments, the retained fluid can be water (such as water absorbed from the surroundings of the aerosol-generating material), or the retained fluid can be a solvent (such as when the aerosol-generating material is formed from a slurry). In some embodiments, the solvent can be water.

[0095] Aerosol forming agent materials may include one or more components capable of forming aerosols. In some embodiments, aerosol forming agent materials may include one or more of the following: glycerol, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butanediol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl octanoate, triethyl citrate, triacetin, a mixture of glycerol diacetate, benzyl benzoate, benzyl phenylacetate, glyceryl tribocate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0096] One or more other functional materials may include one or more of pH adjusters, colorants, preservatives, binders, fillers, stabilizers and / or antioxidants.

[0097] The material may be present on or within the support to form a matrix. The support may be, for example, or may include, paper, cardboard, cardboard, recycled material, plastic material, ceramic material, composite material, glass, metal, or metal alloy.

[0098] An aerosol supply device may receive an article comprising an aerosol-generating material for heating. In this context, an "article" is a component that includes or contains an aerosol-generating material when in use, which is heated to atomize the aerosol-generating material and optionally other components. A user may insert the article into or onto an aerosol supply device, after which the article is heated to generate an aerosol, which the user then inhales.

[0099] An aerosol generator is a device configured to generate aerosols from an aerosol generating material. In some embodiments, an aerosol generator is a heater configured to subject the aerosol generating material to heat energy in order to release one or more volatiles from the aerosol generating material to form an aerosol.

[0100] Consumables are articles comprising or composed of aerosol-generating materials, which are intended, in whole or in part, to be consumed during use by a user. Consumables may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol-generating area, a housing, packaging paper, a nozzle, a filter, and / or an aerosol modifier. Consumables may also include an aerosol generator (such as a heater) that generates heat during use to cause the aerosol-generating material to generate an aerosol. The heater may, for example, comprise a material that can be heated by electrical conduction.

[0101] Non-combustible aerosol supply systems may include modular components comprising both a reusable aerosol supply device and a replaceable aerosol generating article. In some embodiments, the non-combustible aerosol supply device may include a power source and a controller (or control circuitry). The power source may include, for example, a power source such as a battery or a rechargeable battery. In some embodiments, the non-combustible aerosol supply device may also include an aerosol generating component. However, in other embodiments, the aerosol generating article may partially or completely comprise the aerosol generating component.

[0102] Figure 1 A schematic diagram of an aerosol supply system 100 is shown. The aerosol supply system 100 includes an aerosol supply device 200 and an article 300 containing aerosol generating material 302 (see reference). Figure 3 ).exist Figure 2 The image shows the article 300 being removed from the aerosol supply device 200. The aerosol generator 304 of the article 300 is in... Figure 3 The first side 306 is shown in the perspective view. Figure 4 A perspective view of a portion of the second side 307 is shown in the middle.

[0103] Article 300 includes an aerosol generator 304. The aerosol generator 304 is configured to generate aerosols from aerosol generating material 302 during operation of the aerosol supply system 100, as will be described in detail below.

[0104] The aerosol supply system 100 may be elongated and extend along a longitudinal axis. The aerosol supply system 100 has: a proximal end 102, which is closest to the user (e.g., the user's mouth) when the user uses it to inhale the aerosol generated by the aerosol supply system 100; and a distal end 104, which is furthest from the user when in use.

[0105] This proximal end can also be referred to as the "mouth tip". The aerosol supply system 100 thus defines a proximal direction, which points towards the user during use. Furthermore, the aerosol supply system 100 also defines a distal direction, which points away from the user during use. The terms "proximal" and "distal" applied to features of the system 100 will be described by referring to the relative positioning of these features along the longitudinal axis in the proximal-distal direction.

[0106] Article 300 is received by aerosol supply device 200. The configuration of article 300 and aerosol supply device 200 can vary. In this embodiment, aerosol supply device 200 includes device body 202. The device has a housing 204 that accommodates the components of device 200. Article receiving portion 206 (sometimes referred to as device chamber, e.g.) Figure 5 (As shown in the diagram) is configured to receive part of article 300. When article 300 is received in device chamber 206, the proximal end 308 of article protrudes from device 200. Receiver 208 defines chamber 206. Receiver 208 includes receiver base 210 and receiver peripheral wall 212. The configuration of receiver 208 may vary depending on the configuration of article 300. In an alternative embodiment, the article receiving portion may be arranged to receive the entire article 300.

[0107] One or more user-operable control elements 224 (such as buttons or switches) for operating the aerosol supply system 100 may be provided on the aerosol supply device 200. For example, a user can activate the system 100 by pressing the control element 224.

[0108] The aerosol supply device 200 includes an opening 214 at its proximal end to a device chamber 206. The opening 214 is located at the end through which the article 300 can be inserted. In some embodiments, the article 300 can be fully or partially inserted into the device 200. The configuration of the device 200 can vary; for example, the opening may be in the longitudinal sidewall of the device 200, and / or may be closed during use by another feature of the device 200. In the configuration of the present invention, the article 300 defines a mouthpiece 310 at its proximal end 308. In other embodiments, the device 200 defines a mouthpiece. The user places their mouth on the mouthpiece during use.

[0109] Device 200 defines a longitudinal axis along which article 300 extends when inserted into device 200. Opening 214 is aligned on the longitudinal axis. The longitudinal axis can be the axis along which article 300 is inserted into device 200. The longitudinal axis can be considered as the receiving axis of device 200. Article 300 can similarly have a longitudinal axis along which article 300 is inserted into device, and this axis can be considered as the insertion axis.

[0110] The aerosol supply device 200 includes a power source 220. The power source 220 may be a battery, such as a rechargeable battery. The device 200 also includes control circuitry 222, which functions as a controller and includes a processor and memory.

[0111] As discussed in detail below, the heating system 110 is configured to heat the aerosol-generating material 302 of the article 300. The article 300 in this embodiment is consumable and interchangeable with other articles 300. The heating system 110 includes an aerosol generator 304. The heating system 110 includes other components of the aerosol supply system 100, including components of the article 300 and the aerosol supply device 200, such as the power supply 220 and control circuitry 222.

[0112] Aerosol generator 304 forms part of article 300. Aerosol generator 304 includes heating device 312 configured to heat aerosol generating material 302, such as at least one of membrane and gel, to generate aerosol. Aerosol generating material may be referred to as aerosolizable material.

[0113] The heating device 312 is a resistance heating device. As described in detail below, the heating element, or each heating element, in this embodiment is a resistance heating element. In this arrangement, the heating system 110 includes a resistance heating generator comprising components that heat the heating device 312 via a resistance heating process. In this case, current is applied directly to the resistance heating element, and the resulting current flows through the heating element (acting as a heating component) to heat the heating element by Joule heating. The resistance heating element comprises a resistive material configured to generate heat when a suitable current passes through it, and the heating device 312 includes electrical contacts for supplying current to the resistive material. The provision of the resistance heating device 312 allows for a compact device. Resistance heating provides an efficient configuration.

[0114] In use of the aerosol supply system 100, air is drawn into the air inlet 314 of the article 300, as indicated by arrow 316. The air inlet 314 is located at the distal end of the article 300. In embodiments, the air inlet 314 may have different configurations, such as on the side. The airflow to the air inlet 314 of the article 300 may be defined, for example, by at least one of an air path through the device 200, an air path outside the device 200, and an air path between the device 200 and the article 300. The aerosol generated by the aerosol generator 304 exits the device at the aerosol outlet 318, as indicated by arrow 319. In some embodiments, the aerosol outlet 318 is in the mouthpiece of the article 300, such that the aerosol is drawn directly from the article 300 into the mouth of the user of the device 10.

[0115] In some exemplary embodiments, the aerosol supply system includes two main components: a control section forming a reusable component and a consumable section forming a replaceable or disposable component, which may be referred to as a replaceable or disposable article or cigarette. As described herein, the aerosol supply device 200 forms the control section, and the article 300 forms the consumable section. When using the aerosol generation system, the control section and the consumable component can be releasably connected at an interface. The consumable component can be removable and replaceable, for example, when the consumable component is used, wherein the control section is reused along with a different consumable component.

[0116] The aerosol supply system 100 shown is provided by way of example only and is highly illustrative. Different aerosol generating devices and other means may be used in exemplary implementations of the principles described herein. For example, in some exemplary embodiments, air is drawn into an air inlet in a control section, passes through an interface, and exits the consumable component.

[0117] like Figure 5As schematically shown and described in detail below, article 300 has an article electrical contact configuration 320. In this embodiment, the electrical contact configuration 320 is formed by an aerosol generator 304. The electrical contact configuration 320 includes heater electrical contacts 322. The heater electrical contacts 322 may also be referred to as heaters or article contacts. The aerosol supply device 200 includes an electrical connector 230. The electrical connector 230 includes connector electrical contacts 232. The connector electrical contacts 232 may also be referred to as connectors or device contacts. The article electrical contact configuration 320 is configured to communicate electrically with the device electrical connector 230.

[0118] The configuration of the product 300 can be varied. The product 300 includes a body 324. The body 324 is hollow. The body 324 defines a flow path 326 through the product 300 (see reference). Figure 6 Flow path 326 extends between air inlet 314 and aerosol outlet 318. Flow path 326 is defined by an internal space within the article along which air and / or aerosol can flow. Flow path 326 is defined within body 324. The aerosol generator or each aerosol generator 304 defines flow path 326. Aerosol generating material 302 is exposed to flow path 326. Aerosol generating material 302 is exposed to the internal space. In this embodiment, the internal space includes two or more chambers.

[0119] Air inlet 314 includes an opening 315. Opening 315 is formed in body 324. In some embodiments, the opening is formed in another component of article 300, such as aerosol generator 304 or another wall feature. Aerosol outlet 318 includes an outlet opening 317. Outlet opening 317 is formed in body 324. In some embodiments, outlet opening 317 is formed in another component of article 300, such as aerosol generator 304 or another wall feature.

[0120] like Figure 6 As shown, article 300 includes two aerosol generators 304 forming an aerosol generator apparatus. The number of aerosol generators 304 may vary. Each aerosol generator 304 contains aerosol generating material 302. The aerosol generating material 302 is exposed to a flow path 326. In some embodiments, article 300 includes a single aerosol generator 304. One aerosol generator 304 will be described in detail, and these details may apply to one or more other aerosol generators 304 in this embodiment.

[0121] The aerosol generator 304, or each aerosol generator 304, is formed in a stacked configuration with the body 324. In some embodiments, other arrangements are contemplated, such as a tubular arrangement of articles. In such a tubular arrangement, the aerosol generator 304 defines a tubular configuration. The tubular shape may include a circular cross-section, an elliptical cross-section, and other polygonal shapes.

[0122] In some embodiments, as shown in the accompanying drawings, the article 300 has a planar structure. That is, the exterior of the article has a length, a width perpendicular to the length, and a depth perpendicular to each of the length and width, wherein the length is greater than or equal to the width, and wherein the width is greater than the depth. Other configurations are contemplated.

[0123] Figure 6 This is a partially exploded perspective view of article 300, in which aerosol generator 304 is shown in a direction opposite to the assembly orientation and spaced apart from other components. Article 300 includes a first aerosol generator 304, a body 324, and a second aerosol generator 304. The body 324 separates the first and second aerosol generators 304. The first and second aerosol generators 304 enclose an internal space defined by the body 324, along which air and / or aerosols can flow. The aerosol generating materials 302 of the first and second aerosol generators 304 face each other and are exposed to the internal space. During assembly, the first and second aerosol generators 304 sandwich the body 324. Figure 6 In one embodiment, at least the first and second aerosol generators 304 have equal planar areas to the body. In another embodiment, one or more of the first and second aerosol generators 304 and the body 324 have a greater length and / or width. In yet another embodiment, one of the first and second aerosol generators 304 is replaced by a blank panel. The body 324 includes body layers. The body may include multiple body layers. The body layers may be stacked and arranged to define features of the article 300, such as an air inlet 314 and an aerosol outlet 318.

[0124] A wrapping paper surrounds the article 300 and forms part of the article 300. The wrapping paper may include a sheet. The wrapping paper acts as a retaining sleeve. The aerosol generator, or each aerosol generator 304, protrudes from the wrapping paper at its distal end. Exposed electrical contact areas 323 of the heater contacts 322 are exposed at their distal ends. Other configurations are contemplated, for example, at least one exposed electrical contact area 323 may be additionally or alternatively defined along a smaller longitudinal face or edge of the article 300 and on a larger face of the article defined by the aerosol generator 304.

[0125] Aerosol generator 304 Figure 7The cross-section is shown schematically. The aerosol generator 304 is an embodiment of the aerosol generator 304 of the aerosol supply system 100 described above.

[0126] Aerosol generator 304 includes an aerosol generating layer 330. The aerosol generating layer is also referred to as an aerosolizable layer. The aerosol generating layer 330 contains an aerosol generating material 302. Aerosol generator 304 includes a resistance heating layer 340. In one embodiment, the resistance heating layer 340 is formed as a conductive layer. The aerosol generating layer 330 is on the resistance heating layer 340. The aerosol generating layer 330 is in direct contact with the resistance heating layer 340. In another embodiment, the aerosol generating layer 330 is in indirect contact with the resistance heating layer 340. In another embodiment, the resistance heating layer 340 may include a coating. As described in detail below, the resistance heating layer 340 includes a plurality of resistance heating elements 342, such as... Figure 8 and Figure 9 As shown. The resistive heating element or each resistive heating element 342 forms at least a portion of a conductive path between a pair of electrical contacts 322. The resistive heating element or each resistive heating element 342 provides a conductive path for resistively heating at least a portion of the aerosol generating material 302 to generate an aerosol. In this embodiment, the aerosol generating material 302 is in the form of a film or gel.

[0127] The resistance heating layer 340 is formed as a conductive layer. In an embodiment, this layer takes the form of at least one of a metallic layer (such as an aluminum layer) and a non-metallic material (such as graphene). The resistance heating layer 340 is in the form of a foil, such as an aluminum foil.

[0128] The aerosol generator 304 includes a support member 350. In this embodiment, the support member 350 comprises paper or card material. The support member 350 provides structural support for the aerosol generator 304. A resistance heating layer 340 is located on the support member 350. The support member 350 is configured as a support layer. Figure 7 As shown, in the aerosol generator 304, the resistance heating layer 340 is sandwiched between the support member 350 and the aerosol generating layer 330.

[0129] The support 350 is electrically insulated. The resistance heating layer 340 and the support layer 350 define the substrate 352. The substrate 352 supports the aerosol generation layer 330.

[0130] Article 300 may include a layered member 354 comprising a resistance heating layer 340 and a support layer 350. In some embodiments, the layered member 354 includes an aerosol generating layer 330. The aerosol generating layer 330 may be formed as a continuous structure or may be formed from discrete portions. Discrete portions may include one or more of dots, strips, spirals, and other shapes.

[0131] One or more of the aerosol generating layer 330, the resistance heating layer 340, and the support layer 350 may include additional layers. For example, the support layer 350 may include a backing layer or an intermediate layer. The support layer 350 is omitted in this embodiment.

[0132] Figure 8 One of the resistance heating elements 342 is shown. The resistance heating layer 340 includes a plurality of resistance heating elements 342.

[0133] Multiple heating elements 342 can be formed as follows Figure 9 The array shown is 344. Other configurations are envisioned.

[0134] The resistance heating element 342 includes a resistance heating path. The resistance heating path is formed by a conductive path. The resistance heating path is not straight. The resistance heating path is coiled. The configuration of the resistance heating path can vary. The resistance of the heating element 342 can depend on the properties of the resistance heating path in the conductive layer, such as the path's length, width, thickness, and arrangement.

[0135] A resistance heating element 342 extends between a first-type electrical contact 360 and a second-type electrical contact 365. The first-type electrical contact 360 is configured to provide a positive contact, and the second-type electrical contact 365 is configured to provide a negative contact. Current flows through this path between the first-type electrical contact 360 and the second-type electrical contact 365. The contact arrangement can be reversed. The first and second-type electrical contacts 360 and 365 are heater contacts 322. The first and second-type electrical contacts 360 and 365 form at least a portion of the article contact configuration 320.

[0136] The meandering or tortuous nature of the path of the resistance heating element 342 causes the resistance of the path to increase when compared to a straight path between the first type of electrical contact and the second type of electrical contact.

[0137] The resistance heating layer 340 may include a first type of electrical track 361 extending from the resistance heating element 342. The first type of electrical track 361 includes a first type of electrical contact 360. The first type of electrical contact 360 is configured for electrical connection with the device electrical connector 230. The first type of electrical contact 360 includes a first type of exposed contact area 362. The first type of exposed contact area 362 is exposed on the article for direct connection with the device electrical connector 230.

[0138] The resistance heating layer 340 may include a second type of electrical track 366 extending from the resistance heating element 342. The second type of electrical track 366 includes a second type of electrical contact 365. The second type of electrical contact 365 is configured for electrical connection with the device electrical connector 230. The second type of electrical contact 365 includes a second type of exposed contact area 367. The second type of exposed contact area 367 is exposed on the article 300 for direct connection with the device electrical connector 230.

[0139] As discussed in detail below, the conductive path of the resistance heating element 342 in this embodiment is created by defining at least one conductive shield 346 in the resistance heating layer 340. In this embodiment, the conductive shield 346 is formed by cutting conductive barrier constraints (i.e., electrically insulating portions) in a sheet formed of conductive material to form the resistance heating layer 340, the conductive barrier constraints being such as gaps, channels, or slots. In this embodiment, the conductive element 342 is pre-formed to define the resistance heating element or each resistance heating element 342, and then applied to the support 350. In this embodiment, the resistance heating layer 340 is applied to the support 350, and the resistance heating element or each resistance heating element 342 is then defined in the resistance heating layer 340. The resistance heating element or each resistance heating element 342 defining the resistance heating layer 340 may be a printed heater.

[0140] At least one conductive shield 346 defines a first type of electrical track 361 and a second type of electrical track 366.

[0141] In some embodiments, the width of the track of the resistance heating element or each resistance heating element 342 is between 0.5 mm and 1 mm (two example prototypes have widths of 0.93 mm and 0.72 mm, respectively), and the gap between the tracks is less than about 0.25 mm (two identical example prototypes have gaps of 0.2 mm and 0.05 mm, respectively). The resistance heating element or each resistance heating element 342 may have an overall size on the order of 10 mm x 10 mm. In other exemplary embodiments, other sizes are possible. By forming the resistance heating element or each resistance heating element 342 of these dimensions from aluminum foil having a thickness of 0.006 mm and a resistivity between 2 and 6 µOhmcm, the resistance of the path is calculated to be approximately 1 Ohm. In one exemplary embodiment, the resistance is measured to be between 0.83 and 1.31 Ohm.

[0142] like Figure 9As shown, the resistance heating layer 340 can be formed as a plurality of resistance heating elements, generally indicated by reference numerals 342a, 342b, 342c, 342d, and 342e. Each of the resistance heating elements 342a-342e extends from a corresponding one of the first type of electrical contacts (generally indicated by reference numerals 360a, 360b, 360c, 360d, and 360e) to a single second type of electrical contact 365. The number of electrical contacts can vary. Thus, each resistance heating element 342a-342e extends between discrete first type electrical contact elements and common second type electrical contact elements.

[0143] Each of the resistance heating elements 342a-342e provides a conductive path for resistively heating a portion of the aerosol generating material 302 to generate aerosol at a corresponding portion of the aerosol generator 304.

[0144] The discrete first-type electrical contacts 360a-360e allow current to be individually supplied to each of the multiple resistance heating elements 342a-342e. Heating of different zones of the aerosol generation layer 330 can be controlled. For example, the aerosol generator may be configured with five aerosol generation zones. The resistance heating layer 340 allows each of these zones to be activated separately. Thus, for example, five aerosol extractions can be generated from a single consumable incorporating a single aerosol generator 304, and ten aerosol extractions can be generated from a single consumable incorporating two aerosol generators 304.

[0145] In the exemplary resistance heating layer 340, a plurality of first-type electrical contacts 360a-360e, such as positive connections, are provided, and a single second-type electrical contact 365, such as a negative connection, is provided. This is not necessary for all implementations. For example, a plurality of second-type electrical contacts may be provided. In an embodiment, each resistance heating element 342a-342e includes a corresponding one of the first-type electrical contacts 360 and a corresponding one of the second-type electrical contacts 365.

[0146] exist Figure 9 In the illustrated embodiment of the resistance heating layer 340, first-type electrical contacts 360a-360e are arranged on the first edge 363 of the resistance heating layer 340, and second-type electrical contacts 365 are arranged on the second edge 368 of the resistance heating layer 340. This allows for convenient electrical connection, but of course, many other configurations are possible, some of which will be discussed further below.

[0147] Figure 10 This is a flowchart illustrating a portion of a method or algorithm for forming an aerosol generator 304 according to an exemplary embodiment, the method being generally indicated by reference numeral 400.

[0148] The method or algorithm 400 begins at operation 402, wherein the resistance heating layer is formed as one or more heating elements (e.g., multiple heating elements), wherein each resistance heating element extends from a first type of electrical contact to a second type of electrical contact. In use, the heating element or each heating element can be used to provide a conductive path for resistance heating of a portion of an aerosol-generating material to generate an aerosol. The formation of the resistance heating element or each resistance heating element can be performed before or after the resistance heating layer is applied to a support in which a support is present. The resistance heating layer can be adhered to the support, or mounted or formed on the support in different configurations.

[0149] In operation 404, the formed resistance heating layer is arranged to contact the aerosol generation layer, wherein the aerosol generation layer contains aerosol generating material. Algorithm 400 can be used to generate the aforementioned aerosol generator 304.

[0150] Figure 11 This illustrates an aerosol generator 304 formed according to an embodiment. Aerosol generating material 302 is formed on the resistance heating layer 340 by deposition, for example, by spraying, sprinkling, dispensing, or some other method. In an exemplary implementation of operation 64, the aerosol generating layer 330 is disposed on the resistance heating layer 340, as indicated by arrow 406.

[0151] Figure 12 A resistance heating layer 340 formed according to an exemplary embodiment is shown. The resistance heating layer 340 is cut using a laser cutter 408. The cutting of the resistance heating layer 340 can be used to form the path of the heating element described herein. The use of a laser cutter 408 (or some other cutting process) is not the only method available to produce the resistance heating layer 340 described herein. Some example methods are described below.

[0152] Figure 13 This is a flowchart illustrating a portion of a method or algorithm for forming an aerosol generator 304, generally indicated by reference numeral 410. Method or algorithm 410 begins with operation 412, in which a resistance heating layer is provided. In operation 414, one or more resistance heating elements are formed in the resistance heating layer by chemical etching. Operations 412 and 414 are example implementations of operation 402 of the method 400 described above. Aerosol generating material is then disposed on the resistance heating layer, thereby realizing operation 404 described above.

[0153] Figure 14This is a flowchart illustrating a portion of a method or algorithm for forming an aerosol generator 304, generally indicated by reference numeral 418. Method or algorithm 418 begins with operation 420, in which one or more heating elements are formed, at least partially, by printing a resistance heating layer. Thus, operation 420 is an exemplary implementation of operation 62 of the algorithm 402 described above. Aerosol-generating material is then disposed on the resistance heating layer, thereby achieving operation 404 described above.

[0154] The cutting, etching, and printing methods described above are provided by way of example; other additional or alternative methods are also possible. For example, a so-called "thermal atomization" method can be used, in which the heating element is made of a resistance heating layer and then assembled / bonded to a support. Other techniques, such as punching, can also be used. Furthermore, two or more techniques can be combined (e.g., conductivity can be added to the connection traces by adding more conductive material, such as additional foil, printing material, etc.). Those skilled in the art will recognize many other techniques or combinations of techniques that can be used in the implementation of the principles described herein.

[0155] Figure 15 This is a flowchart illustrating a method or algorithm of operation according to an example implementation, generally indicated by reference numeral 424. The method or algorithm 424 can be implemented, for example, using any aerosol generator described herein. The method or algorithm 424 begins when a command to activate heating is received in the example of operation 426. In response to the command to activate heating, it is determined (in operation 428) whether a heating element is available. As described above, multiple heating elements may be provided. Operation 428 may include determining which heating elements have been used and / or the corresponding available aerosol generating material has been used up.

[0156] If a heating element is available, the algorithm moves to operation 430, where the available heating element is used. As mentioned above, the heating element can be individually controllable, for example, by supplying power to individual heating elements. Once operation 430 is complete, the algorithm terminates at operation 432. If, at operation 428, it is determined that no heating element is available, for example because all heating elements have been used, then the algorithm terminates at operation 432. This may mean that consumable components used to implement algorithm 424 need to be replaced.

[0157] Figure 16 A resistance heating layer 340 formed according to an embodiment is shown. The resistance heating layer 340 is cut using a laser cutter 408, but other methods, such as chemical etching or printing, can be used, as described above. The cutting of the conductive layer 340 forms the heating element described herein.

[0158] exist Figure 16In this embodiment, the cutting path is a linear path extending along the length of the conductive layer 120.

[0159] Figure 17 Another embodiment of the resistance heating layer 340 is shown. The resistance heating layer 340 can be formed using the laser cutter 408 described above or similar devices or other methods. The resistance heating layer 340 includes a plurality of resistance heating elements 342, each of which is a linear heating element and includes a conduction path extending along the length of the resistance heating layer 340. Each resistance heating element 342 extends from one of a first type of electrical contact 360 (e.g., a positive connection) to one of a second type of electrical contact 365 (e.g., a negative contact). In this embodiment, both types of electrical contacts are located at the same end of the resistance heating layer 340 and are positioned close to each other. In this arrangement, as in some other embodiments, there is no common second type of electrical contact; instead, each heating element has discrete first type and second type electrical contacts.

[0160] Figure 18 Another embodiment of the resistance heating layer 340 is shown. The resistance heating layer 340 can be formed using the laser cutter 408 described above or similar devices or other methods. The resistance heating layer 340 includes a plurality of heating elements 342, each of which is a linear heating element comprising a conductive path extending along the length of the resistance heating layer 340. Each resistance heating element 342 extends from one of a first type of electrical contact 360 (e.g., a positive electrical connection) to a second type of electrical contact 365 (e.g., a negative electrical contact). In this embodiment, different types of electrical connections are provided at opposite ends of the resistance heating layer 340, and a common second type of electrical contact is provided. Although a linear path is provided, resistance can be increased by providing a bastion path that acts as a tortuous path. It should be noted that the path in any other embodiment described herein may also take a bastion-like form.

[0161] Figure 19 The distal end of article 300 is shown. As shown, body 324 includes a plurality of body layers 325. The body layers 325 are arranged in a stacked manner. The body layers 325 form a layered structure. In this embodiment, the body layers 325 are card layers. Other suitable materials may be used. The body layers 325 are configured to define features of article 300. At least one body layer in this embodiment includes a gap defining an air inlet 315. The gap defines an opening 314.

[0162] The aerosol generator 304 includes a resistance heating layer 340. The resistance heating layer 340 includes: resistance heating elements 342; a first type of electrical contact 360, for example, providing a positive electrical connection to each of the plurality of heating elements 342; and a single second type of electrical contact 365, for example, providing a common negative electrical connection to the plurality of heating elements 342. The first and second types of electrical contacts 360, 365 (i.e., heater contacts 322) together form at least a portion of the article-of-production electrical contact configuration 320 of the aerosol generator 304.

[0163] The resistance heating element 342 is located on the inner side of the resistance heating layer 340. The inner side defines the first side 306 of the aerosol generator 304, as shown below. Figure 3 As shown. Heater contacts 322 are on the second side 307 of the resistance heating layer 340. The second side 307 defines the outer side of the aerosol generator 304. The heater contacts 322 are exposed so that they can contact the device electrical connector 230. The heater contacts 322 are on the side of the resistance heating layer 340 opposite to the resistance heating element 342. Other configurations are contemplated.

[0164] The support layer 350 is located between the inner portion of the resistance heating layer 340 and the outer portion of the resistance heating layer 340.

[0165] A fold 370 is formed in the resistance heating layer 340. The fold 370 defines the heater contact 322. Figures 2 to 4 and Figure 19 The fold 370 shown extends perpendicular to the longitudinal axis of the aerosol generator 304. The fold 370 defines a flap 372. A heater contact 322 rests on the flap 372. The flap defines a contact panel. The remainder of the blank defines the main panel.

[0166] In an embodiment with a support layer 350, the support layer 350 is folded. The substrate 352 is folded at a fold 370. In this embodiment, the support layer 350 terminates at the fold. In this embodiment, the fold 370 extends parallel to the longitudinal axis of the aerosol generator 304.

[0167] The folded portion of the resistance heating layer 340 is fixed in the folded position. In this embodiment, this folded portion is adhered, for example, by adhesive. Other fixing methods are contemplated.

[0168] Fold 370 defines a first type of exposed contact area 362. Fold 370 defines a second type of exposed contact area 367. Electrical tracks 361 and 366 are electrically connected across fold 370. Heater contacts 322 of the first type of electrical track 361 and the second type of electrical track 366 are defined on a second side of the resistance heating layer 340. Portions of the first type of electrical track 361 and the second type of electrical track 366 extend on a first side of the resistance heating layer 340. In this embodiment, the resistance heating element extends from fold 370. Other configurations are contemplated.

[0169] Aerosol generator 304 includes a plurality of connector electrical contacts 232 of electrical connector 230. The configuration of device connector 230 depends on the configuration of heater contacts 322 of aerosol generator 304. In such cases... Figure 19 In the embodiment of the aerosol generator shown, the aerosol generator 300 includes a plurality of heater contacts 322, which include a plurality of first-type heater contacts 360 and a second-type heater contact 365. The article 300 includes another set of heater contacts 322 on the opposite side of the article 300, corresponding to the second aerosol generator 304.

[0170] Figure 20 A device connector 230 of an aerosol supply device 200 used in some embodiments is shown. The connector 230 has a separate connector electrical contact 232 for connection with a heater contact 322.

[0171] Figure 21 An aerosol supply system 100 is schematically shown. System 100 includes an article 300 and an aerosol supply device 200, both shown in block diagram. Device 200 includes first and second connectors 230a and 230b.

[0172] When article 300 is inserted into aerosol supply device 200, connectors 230a and 230b enable aerosol supply device 200 to provide regulated or controlled voltage and / or current to different first and second type heater contacts 360, 365 of aerosol generator 304. Aerosol supply device 200 may include connector devices configured to supply power to connectors 230a, 230b. Aerosol supply device 200 may operate, for example, as described above.

[0173] Figure 22 This is a flowchart illustrating a method or algorithm for forming an aerosol generator 304 according to an exemplary embodiment, the method being generally indicated by reference numeral 440.

[0174] Method or algorithm 440 begins with operation 442, wherein a resistance heating layer is formed in at least one resistance heating element, which, or each heating element, provides a conductive path for resistance heating at least a portion of the aerosolizable material to generate an aerosol. Example heating elements that may be formed in operation 442 are described elsewhere herein.

[0175] In operation 442, an aerosol-generating material is applied to and / or formed on the resistance heating layer.

[0176] Operations 442 and 444 of method or algorithm 440 are similar to (and may be the same as) operations 402 and 404 of method or algorithm 400 described above.

[0177] In operation 446, at least one first-type electrical contact is provided on the resistance heating layer. The forming method can be any of the methods described above. In operation 448, at least one second-type electrical contact is provided on the resistance heating layer. The forming method can be any of the methods described above.

[0178] In one embodiment, a first type of electrical contact and a second type of electrical contact are formed along or near a single edge of the resistance heating layer. In another embodiment, the first type of electrical contact and the second type of electrical contact are formed along or near different edges of the resistance heating layer.

[0179] In some embodiments, a first type of electrical contact (e.g., a positive connection) is provided along a first edge of the resistance heating layer. In some embodiments, a second type of electrical contact (e.g., a negative connection) is provided along a second edge of the resistance heating layer. Operations 446 and 448 can be performed in different orders or simultaneously. Furthermore, operations 446 and 448 can be performed together with operation 442.

[0180] In operation 450, the resistance heating layer is folded. In this embodiment, the support layer is folded together with the resistance heating layer.

[0181] In one embodiment, the resistance heating layer is folded so that the first type of electrical contact and the second type of electrical contact are arranged adjacent to each other, as discussed in detail below.

[0182] Figures 23 to 25 An embodiment of the aerosol generator 304 formed according to algorithm 440 is shown.

[0183] Figure 23Another embodiment of forming the aerosol generator 304 is shown. The resistance heating layer 340 is cut using a laser cutter 408. A pre-folded configuration defines a blank for forming the aerosol generator 304. In this embodiment, the blank defines a fold line along which folds are made during the formation of the aerosol generator. The aerosol generator 304 blank includes the resistance heating layer 340 and a support layer 350. The resistance heating layer 340 and the support layer 350 define a panel defined by the fold line.

[0184] like Figure 23 As shown, the resistance heating layer 340 is formed as a plurality of heating elements 192, but the number may vary and may be a single element. A plurality of first-type electrical contacts 360 (e.g., positive contacts) are disposed along a first edge of the conductive layer (one contact for each heating element is shown). A single second-type electrical contact 365 is disposed along a second edge of the resistance heating layer 340. In this embodiment, the contacts are spaced apart from the edges. As described above, each of the plurality of heating elements extends from the first-type electrical contact to the second-type electrical contact.

[0185] The heating element 342 or the path of each heating element is formed by cutting the resistance heating layer 340 using a laser cutter 408. As mentioned above, laser forming or some other cutting process is not the only method to produce the resistance heating layer 340 described above. Some example alternative methods include chemical etching and printing.

[0186] like Figure 24 As shown, the aerosol generation layer 200 is disposed on the resistance heating layer 340. Then the blank is folded, as... Figure 24 As indicated by the arrow in the diagram. In this embodiment, the folded portion is formed parallel to the longitudinal direction of the aerosol generator 304. Two folded portions are formed. The first panel 375 is defined to include a heating element 342. The second panel 376 is formed to include a plurality of first-type electrical contacts 360. The third panel 377 is formed to include second-type electrical contacts 365. The aerosol generating layer 330 is on the first panel 375. Figure 25 A folded aerosol generator 304 is shown.

[0187] The aerosol supply system includes a heating system to enable current to be individually supplied to each of the multiple resistance heating elements 342a-342e, as described above. Figure 9 As discussed, the heating of different zones of the aerosol generation layer can be controlled, and each zone can be activated separately.

[0188] Figures 26 to 30 A schematic diagram illustrating an implementation of the heating system is shown. It should be understood that the heating system can be used with any suitable heater (such as the resistance heating element discussed above).

[0189] Figure 26 An embodiment of the heating system is shown. The heating system includes five switches (502a, b, c, d, e) and six heaters (504a, b, c, d, e, f).

[0190] Each heater (504a, b, c, d, e, f) is arranged in series with two of the switches (502a, b, c, d, e) such that when both switches are turned on, current is supplied to the corresponding heater (504a, b, c, d, e, f). In this embodiment, current is supplied to the corresponding heater (504a, b, c, d, e, f) via electrical contact configuration 320, and the heating zone is activated.

[0191] Each switch (502a, b, c, d, e) is operatively (or electrically) connected to multiple heaters, such that different configurations of the open and closed switches can activate different heating zones.

[0192] In the implementation, switches 502a and 502e are high-side switches that control the voltage input, and switches 502b-d are low-side switches connected to ground.

[0193] In an alternative implementation, switches 502a and 502e are low-side switches connected to ground, and switches 502b-d are high-side switches controlling the voltage input.

[0194] Figure 26 The configuration of the implementation method is in Figures 27a to 27f As shown in the image.

[0195] like Figure 27a As shown, if switches 502a and 502b are turned on and switches 502c-e are turned off, heater 504a will turn on and heaters 504b-f will turn off.

[0196] like Figure 27b As shown, if switches 502a and 502c are turned on and switches 502b, d, and e are turned off, heater 504b will turn on and heaters 504a and cf will turn off.

[0197] like Figure 27c As shown, if switches 502a and 502d are turned on and switches 502b, c, and e are turned off, heater 504c will turn on and heaters 504a, b, and df will turn off.

[0198] like Figure 27d As shown, if switches 502b and 502e are turned on and switches 502a, c, and d are turned off, heater 504d will turn on and heaters 504a-c, e, and f will turn off.

[0199] like Figure 27e As shown, if switches 502c and 502e are turned on and switches 502a, 502b, and 502d are turned off, heater 504e will turn on, and heaters 504a-504d and 504f will turn off.

[0200] like Figure 27f As shown, if switches 502d and 502e are turned on and switches 502a-d are turned off, heater 504f will turn on and heaters 504a-e will turn off.

[0201] As can be seen, different combinations of on and off switches allow individual control of any heater.

[0202] As mentioned above, this means that each heater can operate independently. However, it should be understood that the arrangement of switches in the heating system also means that heaters can operate in pairs or in any desired combination as needed. For example, in the case of providing discrete portions of more than one type of aerosol generating material, it may be desirable to heat two different aerosol generating materials simultaneously to provide an improved user experience.

[0203] Figure 28 An embodiment with seven switches and ten heaters is shown. Each heater 504 is connected in series with two switches 502, while each switch 502 is connected with two or five heaters 504. In this embodiment, switches 502a and 502g are high-side switches and switches 502b-f are low-side switches. In an alternative embodiment, switches 502a and 502g are low-side switches and switches 502b-f are high-side switches.

[0204] Figure 29 An embodiment with seven switches and twelve heaters is shown. Each heater 504 is connected in series with two switches 502, and each switch 502 is connected to three of the four heaters 504. In this embodiment, switches 502a, 502b, 502f, and 502g are high-side switches, and switches 502c-e are low-side switches. In an alternative embodiment, switches 502a, 502b, 502f, and 502g are low-side switches, and switches 502c-e are high-side switches.

[0205] Figure 30 An embodiment with eight switches and sixteen heaters is shown. Each heater 504 is connected in series with two switches 502, while each switch 502 is connected with four heaters 504. In this embodiment, switches 502a, 502b, 502g, and 502h are high-side switches, and switches 502c-f are low-side switches. In another embodiment, switches 502a, 502b, 502g, and 502h are low-side switches, and switches 502c-f are high-side switches.

[0206] exist Figures 28 to 30 In each of the diagrams, it is clear that different combinations of on and off switches allow individual control of any heater. Again, this means that each heater can operate independently and these heaters can operate in any desired combination.

[0207] These heating systems allow for the use of fewer switches than heaters to individually supply current to each of the multiple heaters. This, for example, allows for reduced cost and space on the PCB, while simplifying layout. It should be understood that because the switches require less space, a PCB with a reduced coverage area can be used, making it easier to integrate into the aerosol supply unit.

[0208] In this embodiment, the switch for the heating system may be located in the aerosol supply device to selectively supply current to the contacts, as described above. Alternatively, it will be understood that the switch may be located in the article of manufacture, or the heating system may be located separately in the aerosol supply device.

[0209] In some embodiments of the different arrangements of the aerosol generator and article described above, the aerosol generating material is formed in a configuration different from that of an aerosol generating layer. In this embodiment, the aerosol generating material is in the form of an aerosol generating section. The aerosol generating section typically comprises a solid material. This solid material can be shredded tobacco. For example, the aerosol generating material arranged as an aerosol generating section may include multiple individual aerosol generating material pieces. The aerosol generating material can be a single tobacco material piece. In embodiments, the aerosol generating material includes multiple strips, beads, or pellets. In some embodiments, the aerosol generating section is a material plug.

[0210] In some embodiments, the aerosol-generating section includes a bulk material. The aerosol-generating material is non-liquid. In this embodiment, the bulk material includes a rod of aerosol-generating material, such as a tobacco stick. For example, the bulk material may include shredded tobacco material. The bulk material may be formed as a rod. In some embodiments, the bulk material includes cut tobacco fragments formed as rods. The aerosol-generating material may include tobacco material. The aerosol-generating material may include extruded tobacco. The aerosol-generating material may include reconstituted tobacco.

[0211] Aerosol-generating materials that form solid materials may include nicotine. Aerosol-generating materials may include tobacco, be composed of tobacco, or be substantially composed of tobacco. In this embodiment, the aerosol-generating material does not contain tobacco.

[0212] In any of the above embodiments, heating the article causes a relatively constant release of volatile compounds into the inhalable medium. In the above embodiments, the aerosol-generating section is a material plug. The article may include a mouthpiece section. A tubular element may be located between the aerosol-generating material and the mouthpiece section. The article may include a ventilated area in the mouthpiece section. The mouthpiece section may define a mouthpiece configured to be disposed between the user's lips.

[0213] In any of the embodiments of the above-described article, the resistance heating element, or each resistance heating element, is configured to substantially heat the entire aerosol-generating material. The aerosol-generating section in the embodiments is at least substantially cylindrical. In some embodiments, the aerosol-generating section is at least partially enclosed by a resistance heating layer. In some embodiments, the resistance heating element extends within the aerosol-generating section. The resistance heating element may extend around the aerosol-generating section. In some embodiments, the resistance heating element surrounds the aerosol-generating section. In some arrangements, at least a portion of the flow path through the article passes through the aerosol-generating section. The aerosol-generating section may define a portion of an air path. In some embodiments, first-type and second-type electrical contacts are exposed from the aerosol-generating section.

[0214] Aerosol-generating materials may include tobacco materials as described herein, which include tobacco components. In the tobacco materials described herein, the tobacco components may include paper-reconstituted tobacco. The tobacco components may also include tobacco leaves, extruded tobacco, and / or ribbon-cast tobacco. The tobacco material may be provided in the form of shredded tobacco. Shredded tobacco may be formed from a mixture of various forms of tobacco materials, such as one or more of paper-reconstituted tobacco, tobacco leaves, extruded tobacco, and ribbon-cast tobacco. In embodiments, the tobacco material includes paper-reconstituted tobacco or a mixture of paper-reconstituted tobacco and tobacco leaves. In the tobacco materials described herein, the tobacco material may include filler components. Filler components are generally non-tobacco components, that is, components that do not include tobacco-derived ingredients. Filler components may be non-tobacco fibers, such as wood fibers, pulp, or wheat fibers. Filler components may also be inorganic materials, such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, or magnesium carbonate. Filler components may also be non-tobacco casting materials or non-tobacco extrusion materials. The filler component may be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of 1% to 10% by weight of the composition. In some embodiments, the filler component is absent. The tobacco material described herein includes an aerosol-forming agent material. In this context, "aerosol-forming agent material" is an agent that promotes aerosol generation. Aerosol-forming agent materials can promote aerosol generation by promoting the initial evaporation and / or condensation of gases into inhalable solid and / or liquid aerosols. In some embodiments, the aerosol-forming agent material can improve the delivery of flavorings from the aerosol-generating material. Generally, any suitable aerosol-forming agent material or agent can be included in the aerosol-generating material of the present invention, including those aerosol-forming agent materials or agents described herein.

[0215] Paper-reconstituted tobacco refers to tobacco material formed through the following process: extracting tobacco raw materials with a solvent to provide a soluble extract and a residue including fibrous material, and then recombinating the extract (usually after concentration and optionally after further processing) with the fibrous material from the residue (usually after refining the fibrous material and optionally with the addition of a portion of non-tobacco fibers) by depositing the extract onto the fibrous material. The recombination process is similar to the papermaking process.

[0216] The various embodiments described herein are provided only to aid in understanding and teaching the claimed features. These embodiments are provided only as representative examples of implementations and are not exhaustive and / or exclusive. It should be understood that the advantages, implementations, examples, functions, features, structures, and / or other aspects described herein should not be considered as limitations on the scope of the invention as defined by the claims or on the equivalents of the claims, and other embodiments may be used and modifications may be made without departing from the scope of the claimed invention. In addition to those specifically described herein, various embodiments of the invention may suitably include, consist of, or substantially consist of suitable combinations of the disclosed elements, components, features, parts, steps, devices, etc., or suitable combinations of the disclosed elements, components, features, parts, steps, devices, etc. Furthermore, this disclosure may include other inventions not currently claimed but which may be claimed in the future.

Claims

1. A heating system for an aerosol supply system, comprising: The first heating device includes a first heater electrically connected to a first switch group; as well as The second heating device includes a second heater electrically connected to the second switch group; Furthermore, the first switch group and the second switch group share at least one switch.

2. The heating system according to claim 1, wherein, The first switch group and the second switch group each include multiple switches.

3. The heating system according to claim 1 or 2, wherein, Each switch group consists of two switches.

4. The heating system according to any one of the preceding claims, wherein, In each heating device, the corresponding heater and each switch in the switch group are arranged in series.

5. The heating system according to any one of the preceding claims, wherein, One or more switches are MOSFETs.

6. The heating system according to any one of the preceding claims, wherein, The heating system is arranged such that each heater can be controlled independently.

7. An article for use with an aerosol supply system comprising a heater including a heating system according to any one of the preceding claims, said article comprising an aerosol generating material.

8. An article for use with an aerosol supply system comprising a heating system according to any one of the preceding claims, the article comprising an aerosol generating material.

9. The article of claim 7 or 8, wherein the aerosol-generating material comprises a gel.

10. The article of claim 7, 8 or 9, wherein the aerosol generating material is located on a substrate.

11. The article of manufacture according to claim 8, wherein, The substrate comprises a metal foil, and optionally an aluminum foil.

12. The article of manufacture according to claim 11 or 12, wherein, Each heater is configured as a trace on the substrate.

13. The article of manufacture according to any one of claims 8 to 12, wherein, Each heater is arranged to heat a corresponding portion of the aerosol-generating material.

14. An aerosol supply system comprising an aerosol supply device and an article of any one of claims 8 to 13.

15. An aerosol supply device comprising a heating system according to any one of claims 1 to 6.

16. An aerosol supply system, comprising an article of manufacture and an aerosol supply device according to claim 15.

17. An aerosol supply system comprising multiple heating devices, each heating device including a heater and a switch assembly; in, Each switch group includes at least one switch that is shared between the switch group and at least one other switch group.

18. A heating device for an aerosol supply system, comprising: Multiple heaters; and Multiple switches; in, The heating device includes more heaters than switches; and The heaters and the switches are arranged such that each heater can be controlled independently.

19. The heating device according to claim 18, wherein, At least one of the plurality of switches is operatively connected to two or more of the plurality of heaters, and at least one of the plurality of heaters is operatively connected to two or more of the plurality of switches.

20. The heating device according to claim 18 or 19, wherein, Each of the plurality of heaters is operatively connected in series to at least two of the plurality of switches.

21. The heating device according to claim 18, 19 or 20, wherein, Each of the plurality of heaters is arranged to heat a portion of the aerosol-generating material.

22. An aerosol supply system, comprising: Aerosol generating materials; and The heating device according to any one of claims 18 to 21; in, Each heater is arranged to heat a portion of the aerosol-generating material.

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