CN216393062U - Aerosol-generating article - Google Patents

Abstract

The present invention proposes an aerosol-generating article that produces an aerosol by providing different functional materials in different sections, in particular by providing a susceptor in a third section to achieve electromagnetic heating. Specifically, the aerosol packaging structure comprises a first section, a second section and a third section which extend longitudinally and are sequentially provided with the first section, the second section and the third section, the third section comprises a susceptor which is arranged close to the outer side, aerosol generating substances are filled in the susceptor, and the outer sides of the first section, the second section and the third section are wrapped with packaging materials. The aerosol-generating article may be adapted for use in both plug-in heating appliances (sheet, pin) and non-plug-in heating appliances (electromagnetic), increasing the range of use and access to the aerosol-generating article.

Description

Aerosol-generating article

Technical Field

The present invention relates to an aerosol generating article, in the field of non-combustible (HnB) heating.

Background

According to the World Health Organization (WHO) at the network of authorities, HnB tobacco products generally use a battery-powered heating system to heat the components of a particular cigarette to 350 ℃ (below 600 ℃ of conventional cigarettes), and are a new type of tobacco product. The heating system in the dedicated device may be an external heat source for precipitating nicotine from specially designed cigarettes (e.g. iQOS and Glo) or a heated sealed chamber to directly atomize nicotine from the tobacco (e.g. Ploom and Pax). In aerosol-generating articles, an inhalable aerosol is typically generated by transferring heat from a heating element to an aerosol-forming substrate. During heating, volatile compounds are released from the aerosol-forming substrate and entrained in the air. For example, the volatile compounds may be entrained in air drawn through, over, around, or otherwise within the vicinity of the aerosol-generating article. HnB it is based on this theory that since high temperature and combustion release toxic and harmful substances, if the tobacco is subjected to special process and material renovation, and is baked at a relatively low temperature of about 300 ℃, without high temperature combustion, the problem of toxic and harmful substances released from tobacco is solved. As the released volatile compounds cool, the compounds condense to form an aerosol, which can be inhaled by a user. The aerosol may contain flavors, flavorants, nicotine, and other desired ingredients.

The actual heating is not combustion, particularly the insertion heating, and is typically represented by an insertion heating sheet of CN102595943B and an insertion heating needle of CN 113243565A; there is also a type of non-intrusive heating, typically represented by the electromagnetic heating of CN 112367872A. Generally, plug-in heating is a mature technology in the prior art, but the limitations of the plug-in heating are more and more obvious, such as high damage rate, short service life and other practical problems, so that the electromagnetic heating has great use. At present, a few actual products are produced by electromagnetic heating mainly due to the characteristics of high cost, low heating efficiency, low reliability and the like, which is a pain point of a large number of manufacturers.

It is therefore important to provide an efficient and reliable electromagnetic heating non-combustion (mHnB) product, and it is further preferred if an aerosol-generating article with a wider range of applications and better efficiency can be provided.

SUMMERY OF THE UTILITY MODEL

The present invention provides an aerosol-generating article that produces an aerosol by providing different functional materials in different sections, in particular by providing a susceptor in a third section to achieve electromagnetic heating.

The solution proposed by this patent is an aerosol-generating article, longitudinally extending provided with a first section, a second section and a third section in this order, the third section comprising a susceptor arranged close to the outside, the susceptor being filled with an aerosol-generating substance, the outside of the first section, the second section and the third section being wrapped with a packaging material.

Preferably, the susceptor is a longitudinally extending open-ended barrel, the susceptor outer side being substantially aligned with the second section outer wall.

Preferably, the susceptor is made of a magnetically inductive material.

Preferably, the first, second and third sections are overwrapped on the outside of the wrapper to allow aerosol to be drawn from the first section first end.

Preferably, the third section second end opening exposes aerosol-generating material to allow insertion of a heater.

Preferably, the aerosol generating product is one or a mixture of several of tobacco leaves, tobacco sheets, ordered tobacco shreds, disordered tobacco shreds, herbal sheets, herbal shreds and herbal particles.

Preferably, the second end opening of the third section is provided with a protective film or a protective cover for covering the aerosol generating substance.

Preferably, a heat-resistant coating or an attached heat-resistant film is further coated between the packaging material and the susceptor.

Preferably, the longitudinally extending cross-sectional shape of the susceptor is circular, elliptical, square, triangular or irregular geometric shape.

Preferably, the aerosol-generating article further incorporates a second susceptor which is filamentary, powdery, flaky, rod-like or irregular in volume.

The aerosol-generating article proposed by the solution of the utility model can be applied to both plug-in heating appliances (sheet, pin) and non-plug-in heating appliances (electromagnetic), increasing the range of use and the approach of the aerosol-generating article. At the same time, it is advantageous, respectively, that the third portion is surrounded by the susceptor in the plug-in heating appliance, in particular with regard to the surrounding aerosol-forming substances, to prevent heat dissipation and to achieve uniform heating; the third section of the non-plug-in heating appliance generates heat to uniformly heat aerosol generating substances, so that the heating efficiency can be effectively improved while the operation of a user is facilitated, and the traditional electromagnetic heating design direction is reformed.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present patent, the drawings required in the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it should be obvious to those skilled in the art that other drawings of the embodiments obtained should be included in the technical solution of the present patent without creative effort.

Figure 1 is a schematic cross-sectional view of an aerosol-generating article;

figure 2 is a schematic view of heating within an aerosol-generating article;

figure 3 is a schematic view of external heating of an aerosol-generating article;

figure 4 is a schematic view of various components of an aerosol-generating article;

figure 5 is a schematic diagram of the composition of a skin layer of an aerosol-generating article;

fig. 6 is a schematic diagram of the constituent system of the heating appliance.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiment is only one embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of the present patent.

Referring to figure 1, a cross-sectional view of an aerosol-generating article is shown. The aerosol packaging material comprises a first section, a second section and a third section, wherein the first section, the second section and the third section are sequentially arranged in a longitudinal extending mode, the third section comprises a susceptor which is arranged close to the outer side, aerosol generating substances are filled in the susceptor, and the outer sides of the first section, the second section and the third section are wrapped with the packaging material. The first, second and third sections are overwrapped on the outside of the wrapper to allow aerosol to be drawn by a user from the first end of the first section. In particular, the first section of the aerosol-generating article 100 comprises a filter mouthpiece 101 defining a first section first end D1 for ingestion by a user. The second section comprises a temperature reducing assembly 102 and an air flow guiding element 103, the air flow being allowed to be guided through the air flow guiding element 103, the temperature reducing assembly 102 and the filter nozzle 101. The third section comprises a substrate section 104 filled with an aerosol former 1042 for generating an aerosol, which extends outwardly to define a third section second end D2, the third section second end D2 is at least partially open to allow insertion of a heated device, and a protective film is provided over the at least partial opening for covering the aerosol former, which protective film can be used to hold the aerosol former 1042 and fix it completely in the heating chamber without spilling or falling off, and on the other hand, can also serve as a moisture-proof and clean function. In a preferred embodiment, the protective film may also be provided in the form of a protective cover, the protective cover being provided with an edge which is arranged completely within the packaging material, covering the at least partial opening. The third section further comprises a susceptor 1041 arranged adjacent to the outer side of the substrate section 104, the susceptor 1041 being a longitudinally extending open-ended barrel, the outer side of the susceptor 1041 being substantially aligned with the outer side of the airflow directing element 103. The longitudinally extending cross-sectional shape of the susceptor 1041 is a circular, elliptical, square, triangular or irregular geometric shape that is adapted to vary according to the shape of the aerosol-generating article 100, which may have some effect on heating efficiency, but since the aerosol-generating article 100 is generally accepted by users as circular. In other special cases, the susceptor 1041 may be perforated or grooved in its extended walls to provide some form changes to improve heating temperature regulation.

In a particular case where the aerosol-generating article 100 is substantially cylindrical, the susceptor 1041 may also be partially corrugated in appearance along a generally circular cross-sectional profile to maximize the contact area with the aerosol-generating article over a limited range of conditions.

The volume radially confined by the airflow directing element 103 defines an airflow path extending from one end towards the other end, specifically directing aerosol from the substrate segment 104 into the temperature reducing assembly 102. The wrapper 106 is wrapped around the susceptor 1041, the airflow directing element 103, the temperature reducing assembly 102 and the filter mouthpiece 101 to form a rod-shaped aerosol-generating article having a smooth and smooth exterior. Materials from which they are made include, but are not limited to, paper, cardboard, plastics such as cellulose acetate, ceramics, and combinations thereof.

The cooling element of the cooling assembly 102 may comprise a gathered sheet of biodegradable polymeric material, and the high temperature aerosol is cooled by the cooling action of the cooling element to a temperature suitable for absorption by the human body. The temperature reduction assembly 102 may have a length of 300mm per millimeter²To 1000mm per mm length²Total surface area of (a). Providing a lower resistance to air passing through the bar, the temperature reduction assembly 102 is formed from a thinner sheet material that has been pleated and then pleated, gathered, or folded to form channels, the more folds or pleats in a given volume of the element, the higher the total surface area of the aerosol cooling element. Preferably, the temperature reduction assembly 102 does not significantly affect the resistance to draw of the aerosol-generating article, which is the pressure required to force air at 22 ℃ and 101kPa (760 torr) at a rate of 17.5ml/sec through the entire length of the article to be tested. In certain embodiments, the cooling assembly 102 can comprise a sheet material selected from the group consisting of a metal foil, a polymer sheet, and a substantially non-porous paper or paperboard, and can further comprise a sheet material selected from the group consisting of Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), Cellulose Acetate (CA), and aluminum foil.

The aerosol-generating material 1042 of the substrate segment 104 may be a solid aerosol-forming substrate. Alternatively, the aerosol-forming substrate may comprise both solid and liquid components. The aerosol-forming substrate may comprise a tobacco-containing material containing volatile tobacco flavour compounds which are released from the substrate upon heating. Alternatively, the aerosol-forming substrate may comprise a non-tobacco material. The aerosol-forming substrate may further comprise an aerosol former, examples of suitable aerosol formers being glycerol and propylene glycol. The aerosol-generating article 1042 has a variety of forms, such as tobacco, tobacco having an ordered arrangement or a disordered arrangement, or further, raw tobacco. In other embodiments, the aerosol-generating substance is one or more of tobacco leaves, tobacco sheets, ordered tobacco shreds, disordered tobacco shreds, herbal sheets, herbal shreds, and herbal particles, and can be heated to release the aerosol-generating substance by the scheme provided by the utility model. The susceptor 1041 of the substrate segment 104 extends along substantially said entire longitudinal extension of said aerosol-generating article 1042, in physical contact with the outer surface of the aerosol-generating article 1042, optimizing the heat transfer from the susceptor to the substrate. In a preferred embodiment, susceptor 1041 and aerosol-former 1042 have a cylindrical shape with a circular cross-section. The susceptor 1041 may be formed of any material that can be inductively heated sufficiently to generate an aerosol from the aerosol-forming substrate, including or consisting of ferromagnetic materials, such as ferritic iron, ferromagnetic alloys such as ferromagnetic steel or stainless steel, ferromagnetic particles, and ferrites, which may be heated to temperatures in excess of 250 degrees celsius. Susceptor 1041 material may also include or be made of: graphite, molybdenum, silicon carbide, aluminum, niobium, inconel (austenitic nickel-chromium based superalloys), metallized films, ceramics such as zirconia, transition metals such as Fe, Co, Ni, or metalloid components such as B, C, Si, P, Al. The longitudinal extension or length of susceptor 1041 may for example be between 4mm and 60mm, preferably between 4mm and 20 mm. The lateral extension or diameter of the susceptor material may for example be between 4mm and 20mm, preferably between 4mm and 10 mm.

In another embodiment, in order to further optimize the heating efficiency, a second susceptor may be added on the basis of the present invention, which comprises a magnetic susceptor material in the form of filaments, powder, flakes, rods or any regular or irregular solid shape. The second susceptor is mixed in the aerosol-forming composition prior to encapsulation, uniformly or non-uniformly dispersed in the individual extruded voids, and may be the same or different, or partially the same, in composition as susceptor 1041.

The packaging material 106 is a high temperature resistant and flame-retardant material film, specifically a cigarette paper, which has the characteristics of high burning point, high strength and beautiful appearance. One of the winding modes is integral wrapping, and the square cigarette paper is parallelly wound into a barrel shape to the tail ends of the first end of one section and the second end of the third section and then is stuck and fixed at the tail end of the cigarette paper. In still another winding method, a complete winding is formed by a plurality of windings in the form of a spiral winding.

Referring to fig. 2 and 3, schematic views of the internal and external heating patterns of the aerosol-generating article 100 are shown. In one embodiment, the heating appliance 200 has a heating cavity 201 and a plug-in heating blade 202; in another embodiment, the heating appliance 200 has a heating cavity 201 and a non-intrusive solenoid 203; in another embodiment (not shown), the heating appliance 200 includes an insertable heating blade 202 and a non-insertable electromagnetic coil 203. In either manner, the aerosol-generating article 100 can be adapted for use with any of the aforementioned appliances and provide superior heating efficiency.

Referring to fig. 4, susceptor 1041 may be provided in a different shape in order to further reduce manufacturing costs, etc. In particular, susceptor 1041 extends longitudinally in a barrel-like spiral shape, the effect of which is generally at least partially openworked in side view. In one embodiment, the susceptor 1041 is configured as two barrel-shaped central portion cutouts from which the aerosol-generating article 1042 escapes, and the overwrap packaging material 106 is also rod-shaped due to the thinness of the susceptor 1041. In another embodiment, the susceptor 1041 is formed as a spiral (e.g., a twisted spring), and the aerosol-generating material 1042 is pierced and leaked out of the middle portion of the spiral. In other embodiments, although this embodiment is not intended to be taken as an example, it is understood that the susceptor 1041 is a barrel shape with side surfaces distributed, and the side surfaces of the susceptor 1041 are at least partially hollowed out, which are all referred to in this patent. In some particular cases, non-uniform openness of the susceptor 1041 sides is a preferred implementation.

Referring to fig. 5, in some embodiments, the aerosol-generating article 100 has a multilayer susceptor assembly. The aerosol former 1042 is provided with a susceptor 1041 of height h1, a thermally insulating material layer 1043 of height h2, and a packaging material 106 of height h3 in sequence, which layers are in close physical contact with one another and can be adhered, for example, by means of glue. For ease of manufacture, the layer of insulating material is a coated insulating (heat resistant) coating or an attached insulating (heat resistant) film, such as a nickel strip, with corrosion protection and weak shielding magnetic properties. The height h1 may preferably be 2mm, the height h2 may preferably be 80 μm, and the height h3 may preferably be 100 μm, and the overall construction thickness is not too high, and does not take up as much volume of the aerosol-generating article 1042 as is available for winding.

In order to disclose further details of the present patent, a solution for a heating appliance is disclosed below in connection with fig. 6, which is intended for use in combination with the aforementioned aerosol-generating article.

The heating appliance particularly comprises a power supply module for supplying power, wherein the power supply module is not only used for supplying power to the functional module, but also can receive power supply charging of an external power system, and the power supply charging comprises wireless charging or wired charging. And the control module is electrically connected with other functional modules and sends different control signal instructions according to the states and the detection signals, such as continuous heating time, heating temperature curve control and the like. The heating module is used for being inserted into the aerosol generating product to perform heating treatment at a preset temperature on tobacco so as to release aerosol, or is used for receiving the aerosol generating product to perform electromagnetic heating treatment on the tobacco so as to release aerosol, the temperature control of the heating module is controlled by the control module, the power supply is controlled by the power supply module, and the heating module can generally convert electric energy into heat energy which is emitted outwards and has the temperature of 100-350 ℃. The detection module is used for detecting the release temperature of the heating module to form an energy negative feedback loop so as to provide better experience for a user, the detection module feeds back the release temperature to the control module to increase the heating current when the detection temperature is lower than the preset temperature, and feeds back the release temperature to the control module to reduce the heating current when the detection temperature is higher than the preset temperature, so that the effective control of the temperature is finally achieved or the temperature is kept in a certain stable interval. It should be noted that the power module, the control module, the heating module and the detection module are all fixedly installed inside the heating appliance, and therefore are omitted in partial view or description, but this does not affect the function of the heating appliance.

The embodiments disclosed are merely exemplary for the purpose of clearly illustrating the utility model, and should not be considered as limiting the scope of the utility model, and certainly not limiting the scope of the utility model as claimed, it will be apparent to those skilled in the art that equivalent changes, modifications, variations, etc. made in the claims of the utility model are intended to be included within the scope of the utility model as defined by the claims.

Claims (9)

1. Aerosol-generating article provided with a first section, a second section and a third section extending longitudinally in this order, characterized in that the third section comprises a susceptor arranged adjacent to the outside, which susceptor is filled with an aerosol-generating substance, the first, second and third sections being overwrapped with a packaging material.

2. An aerosol-generating article according to claim 1, wherein the susceptor is a longitudinally extending open-ended barrel, the susceptor outer side being substantially aligned with the second section outer wall.

3. An aerosol-generating article according to claim 2, wherein the susceptor is made of a magnetically inductive material.

4. An aerosol-generating article according to claim 3, wherein the wrapper circumscribes the first, second and third sections externally to allow aerosol to be drawn from the first section first end.

5. An aerosol-generating article according to claim 4, wherein the third section second end opening exposes aerosol-generating material to allow receipt of an inserted heater.

6. An aerosol-generating article according to claim 5, wherein the third section second end opening is provided with a protective cover for enclosing the aerosol-generating article.

7. An aerosol-generating article according to claim 1, wherein a heat-resistant coating or an attached heat-resistant film is further applied between the packaging material and the susceptor.

8. An aerosol-generating article according to claim 1, wherein the longitudinally extending cross-sectional shape of the susceptor is circular, elliptical, square, triangular or an irregular geometric shape.

9. An aerosol-generating article according to claim 1, in which the aerosol-generating article further incorporates a second susceptor in the form of a thread, powder, sheet or rod.

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