CN119257303A - Aerosol generating substrate, aerosol generating product and electronic atomization device - Google Patents
Aerosol generating substrate, aerosol generating product and electronic atomization device Download PDFInfo
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- CN119257303A CN119257303A CN202310817621.8A CN202310817621A CN119257303A CN 119257303 A CN119257303 A CN 119257303A CN 202310817621 A CN202310817621 A CN 202310817621A CN 119257303 A CN119257303 A CN 119257303A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
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Abstract
The application relates to the technical field of aerosol generation, and provides an aerosol generation matrix, an aerosol generation product and an electronic atomization device, wherein the aerosol generation matrix comprises a base section and an adjusting section which are sleeved along the radial direction, one of the base section and the conditioning section is a heating surface along one radial surface, and at least one parameter of the conditioning section and the base section is different, wherein the parameter comprises heat conductivity, mass, wall thickness of the medium and total cross-sectional area of the medium. The heat from the heating surface is transferred between the base section and the adjusting section along the radial direction, and the heat transfer rates of the base section and the adjusting section are different, so that the heat transfer rate of the heat from the heating surface along the radial direction changes, and the aerosol release rate tends to be consistent in the sucking process because the aerosol generating substrate is not heated too quickly along the radial direction away from the cold end area of the heating surface in the heating process.
Description
Technical Field
The present application relates to the field of aerosol-generating technology, in particular to an aerosol-generating substrate, an aerosol-generating article and an electronic atomizing device.
Background
The aerosol-generating substrate may be formed into an aerosol by ignition or by heating without combustion. Taking the example of a heated, non-combusting aerosol-generating substrate, the aerosol-generating substrate is heated by an external heat source such that the aerosol-generating substrate is heated just enough to emit an aerosol, the aerosol-generating substrate does not combust, and the aerosol is released in use by heating the aerosol-generating substrate.
In the related art, a circumferential or central heating of the aerosol-generating substrate is used, wherein the central heating means that the heating element is inserted into the aerosol-generating substrate to bake the aerosol-generating substrate from inside to outside. The circumferential heating means that the heating member is provided at the periphery of the aerosol-generating substrate to bake the aerosol-generating substrate from outside to inside, however, there is a problem in that the uniformity of aerosol release is poor such as faster or slower during the heating of the aerosol-generating substrate.
Disclosure of Invention
In view of the foregoing, it is desirable to provide an aerosol-generating substrate, an aerosol-generating article, and an electronic atomization device that are capable of improving aerosol release uniformity.
To achieve the above object, an embodiment of the present application provides an aerosol-generating substrate comprising:
A base section;
The adjusting section is sleeved with the basic section along the radial direction, one surface of the basic section and the adjusting section along the radial direction is a heating surface, at least one parameter of both the conditioning segment and the base segment is different, the parameter including thermal conductivity, mass, wall thickness of the medium, and total cross-sectional area of the medium.
In some embodiments, the base section is formed with an annular placement space, the adjusting section is located in the placement space, both inner and outer sides of the adjusting section along the radial direction are connected with the base section, and the inner surface or the outer surface of the base section along the radial direction is a heating surface.
In some embodiments, the wall thickness of the media of the conditioning segment is less than the wall thickness of the media of the base segment.
In some embodiments, the base section includes an outer ring portion and a central portion, the outer ring portion surrounding the periphery of the central portion to collectively define the placement space, the central portion having a wall thickness of the medium of 0.2mm to 0.25mm.
In some embodiments, the total cross-sectional area of the media of the base section is greater than the total cross-sectional area of the media of the conditioning section.
In some embodiments, the mass of the base segment is greater than the mass of the adjustment segment.
In some embodiments, the conditioning segment has a thermal conductivity less than a thermal conductivity of the base segment.
In some embodiments, the base section surrounds the outer circumference of the adjusting section, and the radially inner surface of the adjusting section is a heating surface or the radially outer surface of the base section is a heating surface.
In some embodiments, the base section is of annular configuration, and the base section is spaced from 0.2mm to 1mm on both sides in the radial direction.
In some embodiments, the base section is formed with a partition slot that extends radially through both radial sides of the base section.
In some embodiments, the thermal conductivity of the base section is less than the thermal conductivity of the conditioning section.
In some embodiments, an air-spaced space is formed between the base section and the conditioning section that isolates the two.
In some embodiments, the conditioning segment is formed with a first air passage extending through at least one end thereof in an axial direction, and/or,
The base section is formed with a second air passage extending through at least one end thereof in an axial direction.
In some embodiments, the aerosol-generating substrate is an extruded structure.
An embodiment of the present application provides an aerosol-generating article comprising:
An aerosol-generating substrate according to any preceding claim;
And the functional section is arranged at one end of the aerosol generating substrate along the axial direction and at least comprises a filtering section for filtering aerosol.
The embodiment of the application also provides an electronic atomization device, which comprises:
An aerosol-generating article as described above;
a heating element facing the heating surface, the heating element for heating the aerosol-generating substrate to generate an aerosol.
In the embodiment of the application, heat from the heating surface is transferred between the base section and the adjusting section along the radial direction, and as at least one parameter of the adjusting section and the base section is different, the parameters comprise heat conductivity, quality, wall thickness of a medium and total cross-sectional area of the medium, so that the heat transfer rate of the base section and the adjusting section is different, the heat transfer rate of the heat from the heating surface along the radial direction is changed, and in the heating process, the heating aerosol generating substrate is not excessively fast far away from the cold end area of the heating surface along the radial direction, so that the aerosol release rate tends to be consistent in the sucking process, the aerosol release consistency of the aerosol generating substrate in the front section and the rear section of the sucking process is ensured, the aerosol release consistency is improved, and the consistent effect before and after the sucking experience is ensured.
Drawings
Fig. 1 is a schematic structural view of a first aerosol-generating substrate according to an embodiment of the application;
Fig. 2 is a schematic structural view of a second aerosol-generating substrate according to an embodiment of the present application;
Fig. 3 is a schematic structural view of a third aerosol-generating substrate according to an embodiment of the application, wherein the basic segments are schematically shown with bold lines;
fig. 4 is a schematic structural view of a fourth aerosol-generating substrate according to an embodiment of the application;
Fig. 5 is a schematic structural view of a fifth aerosol-generating substrate according to an embodiment of the application;
fig. 6 is a schematic structural view of a sixth aerosol-generating substrate according to an embodiment of the application;
Fig. 7 is a schematic structural view of a seventh aerosol-generating substrate according to an embodiment of the application;
fig. 8 is a schematic structural view of a further view of the seventh aerosol-generating substrate of fig. 7;
fig. 9 is a schematic structural view of an eighth aerosol-generating substrate according to an embodiment of the application;
fig. 10 is a schematic structural view of an aerosol-generating article according to an embodiment of the application;
Fig. 11 is a cross-sectional view taken along the direction A-A in fig. 10.
Description of the reference numerals
The base section 1, the partition groove 1a, the second air passage 1b, the outer ring part 11, the center part 12, the adjusting section 2, the first air passage 2a and the air space 10a.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application. In the present application, the plurality includes two or more. The unit "mm" is millimeters.
In the related art, if the circumferential heating is used, the heat transfer direction is to transfer heat from the outer circumference to the center in the radial direction. In the heat transfer process, the perimeter of the aerosol generating substrate is gradually reduced, that is, the volume of the heated medium is gradually reduced, and the mass of the heated medium is gradually reduced, so that if the heat transfer rate is not controlled, the release of effective substances such as aerosol in the front stage of suction is easy to cause too fast, the sense of satisfaction is too strong, and the attenuation in the rear stage of suction is serious. If central heating is used, the heat transfer direction is radial from the center to the periphery. In the heat transfer process, the perimeter of the aerosol generating substrate is gradually increased, that is, the volume of the heated medium is gradually increased, and the mass of the heated medium is gradually increased, so that if the heat transfer rate is not controlled, the release of effective substances such as aerosol in the front stage of suction is slow, the mouth feel of the front few mouths is poor, and the problem of impurity gas caused by excessive baking in the central area of the rear stage of suction is easily caused.
In view of this, referring to fig. 1, an embodiment of the present application provides an aerosol-generating substrate 10, the aerosol-generating substrate 10 comprising a base section 1 and a conditioning section 2.
The basic section 1 and the adjusting section 2 are sleeved in the radial direction. Illustratively, in some embodiments, the base section 1 is nested within the adjustment section 2. In other embodiments, the adjusting section 2 is sleeved in the base section 1.
One of the base section 1 and the adjusting section 2 is a heating surface along one radial surface. Illustratively, in some embodiments, one surface of the base section 1 in the radial direction is a heating surface. In other embodiments, one surface of the adjustment section 2 in the radial direction is a heating surface. The heating surface is used for facing the heating element to receive heat from the heating element.
At least one parameter of both the conditioning segment 2 and the base segment 1 is different, including thermal conductivity, mass, wall thickness H of the medium, and total cross-sectional area of the medium. Illustratively, in some embodiments, one parameter of both the conditioning segment 2 and the base segment 1 is different, for example, one of the thermal conductivity, mass, wall thickness H of the medium, and total cross-sectional area of the medium is different. In other embodiments, the two parameters of the conditioning segment 2 and the base segment 1 are different, for example, two of the thermal conductivity, mass, wall thickness H of the medium, and total cross-sectional area of the medium are different. In still other embodiments, the three parameters of both the conditioning segment 2 and the base segment 1 are different, for example, three of thermal conductivity, mass, wall thickness H of the medium, and total cross-sectional area of the medium may be different. In still other embodiments, the four parameters of both the conditioning segment 2 and the base segment 1 are different, for example, four may all be different for thermal conductivity, mass, wall thickness H of the medium, and total cross-sectional area of the medium.
Thermal conductivity, also known as thermal conductivity, refers to the amount of heat transferred per unit of thermal conduction surface per unit of time per unit of temperature gradient. The thermal conductivity is a physical quantity representing the magnitude of the heat conduction capability of the structure. The thermal conductivities of the base section 1 and the conditioning section 2 are different, so that the heat transfer rates of both the conditioning section 2 and the base section 1 are different.
Illustratively, the base section 1 and the conditioning section 2 may be of different materials, achieving different thermal conductivities.
The medium refers to a solid structure surrounded by a space. Taking the first air passage 2a formed in the adjusting section 2 as an example, the medium surrounds the first air passage 2a. Referring to fig. 1, the wall thickness H of the medium refers to the thickness dimension of the medium in the cross section with a plane perpendicular to the axial direction as the cross section. Due to the different wall thicknesses H of the media, the heat transfer paths during heat conduction are of different sizes, so that the heat transfer rates of both the conditioning segment 2 and the base segment 1 are different.
The mass of the conditioning segment 2 and the base segment 1 are different, so that the content of the medium capable of releasing aerosol is different, so that the heat transfer rate of the conditioning segment 2 and the base segment 1 is different.
The total cross-sectional area of the media refers to the projected total area of all media with a plane perpendicular to the axial direction as a cross-section. The total cross-sectional areas of the media of both the conditioning segment 2 and the base segment 1 are different, and the heated areas of both the conditioning segment 2 and the base segment 1 are different due to the radial conduction of heat, so that the heat transfer rates of both the conditioning segment 2 and the base segment 1 are different.
In the embodiment of the application, heat from the heating surface is transferred between the base section 1 and the adjusting section 2 along the radial direction, and as at least one parameter of the adjusting section 2 and the base section 1 is different, the parameters comprise heat conductivity, mass, wall thickness H of a medium and total cross-sectional area of the medium, so that the heat transfer rates of the base section 1 and the adjusting section 2 are different, the heat transfer rate of the heat from the heating surface along the radial direction is changed, and the aerosol release rate tends to be consistent in the sucking process because the heating medium 10 is not heated too quickly along the radial direction away from the cold end area of the heating surface in the heating process, thereby ensuring that the aerosol released by the aerosol generating medium 10 in the front section and the rear section of the sucking process is consistent, improving the aerosol release consistency and ensuring the consistent effect before and after the sucking experience.
The front stage of the suction is referred to as a period of initial use of the aerosol-generating substrate 10, and the rear stage of the suction is referred to as a period of time when the aerosol-generating substrate 10 is near the completion of the release of the aerosol. The front and rear segments of the suction refer to the front and rear phases, respectively, of the life cycle of the aerosol-generating substrate 10 in use.
Based on the thermal resistance formula, radial heat transfer thermal resistance=radial dimension of the medium/(thermal conductivity/(total cross-sectional area of medium)), for both circumferential heating and central heating, heat is transferred in radial direction, and by adopting the aerosol-generating substrate 10 provided by the embodiment of the application, the heat transfer rate can be controlled in the complete suction process (i.e. in the life cycle of the aerosol-generating substrate 10), the cold end portion of the aerosol-generating substrate 10 is not heated too fast, and the overall release rate consistency is realized.
It should be noted that there may be a clear physical boundary between the base section 1 and the conditioning section 2. For example, in case the material of both the basic section 1 and the conditioning section 2, the wall thickness of the medium and the total cross-sectional area of the medium are different, there may be a distinct physical boundary between the basic section 1 and the conditioning section 2. Both the basic section 1 and the conditioning section 2 are of different mass and have an air-space, both also having a distinct physical limit.
There may also be no obvious physical limitation between the basic section 1 and the adjustment section 2. By way of example, in the case where both the base section 1 and the adjustment section 2 may differ only in terms of mass, the base section 1 and the adjustment section 2 may not have a distinct physical limit if the base section 1 and the adjustment section 2 are connected in one piece. However, the division of the base section 1 and the adjusting section 2 is not affected, for example, by the structural shape of both the base section 1 and the adjusting section 2.
Referring to fig. 10 and 11, embodiments of the present application also provide an aerosol-generating article comprising an aerosol-generating substrate 10 and a functional segment 20 according to any of the embodiments of the present application.
The functional section 20 is arranged at one end of the aerosol-generating substrate 10 in the axial direction, the functional section 20 comprising at least a filter section 21 for filtering the aerosol. The filter section 21 serves to filter the aerosol generated by the aerosol-generating substrate 10.
The aerosol-generating article is for use in a user inhaling an aerosol generated by the aerosol-generating substrate 10. For example, the user may draw in the filtered aerosol through the filter segment 21. The aerosol generated by the aerosol-generating substrate 10 is transported to the filter stage 21 under suction negative pressure.
The aerosol-generating article is for use with an electronic atomizing device having a heating element.
An electronic atomizing device provided by an embodiment of the present application includes an aerosol-generating article according to any of the embodiments of the present application and a heating element, the heating element being oriented towards the heating surface. The heating element is used to heat the aerosol-generating substrate 10 to generate an aerosol. That is, the heat of the heating element is transferred to the heating surface and then in the aerosol-generating substrate 10 in a radial direction.
It should be noted that in the embodiment of the present application, the aerosol-generating substrate 10 is used for heating to generate aerosol. For example, the aerosol-generating substrate 10 may be adapted to generate an aerosol in a manner that does not burn upon heating. That is, the aerosol-generating substrate 10 is heated below the ignition point to produce an aerosol. The aerosol-generating substrate 10 does not burn during the process of generating an aerosol. In some application scenarios, the aerosol-generating substrate 10 may be adapted to produce an aerosol in a lit manner. The aerosol-generating substrate 10 of the present application is more applicable to the generation of aerosols by means of a heated non-combustible.
The heating means of the heating element includes, but is not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc. Wherein the heating element may or may not be in contact with the heating surface. The heat convection mode is to transfer heat to the heating element without contacting the heating surface, and the heating element heats air first, and then the hot air toasts and heats the aerosol-generating substrate 10. Thermal conduction means that the heating member is in contact with the heating surface and conducts heat to the aerosol-generating substrate 10. Illustratively, resistive, electromagnetic heating primarily transfers heat to the aerosol-generating substrate 10 in a thermally conductive or convective form. Infrared heating, microwave heating or laser heating primarily transfers heat to the aerosol-generating substrate 10 in the form of thermal radiation. I.e. the heating member may heat the aerosol-generating substrate 10 by one or more of heat conduction, heat convection and heat radiation.
In some embodiments, the aerosol-generating substrate 10 is an extruded structure. That is, the aerosol-generating substrate 10 is a unitary structure that is manufactured and shaped using an extrusion process. The aerosol-generating substrate 10 formed by extrusion is an integral medium during use, for example, after being heated and sucked or stopped, and is not easy to disintegrate and fall.
Compared with ordered and disordered filament media produced by the papermaking method, thick stock method and the like in the prior art, the extruded media are connected with each other, and the air in the media is less, so that the overall thermal conductivity of the aerosol-generating substrate 10 can be improved. And the heat transfer efficiency of different parts of the aerosol-generating substrate 10 can be effectively adjusted by different parameters, thereby improving the suction consistency.
Extrusion molding refers to a process in which a material is forced forward by a screw through the action between the barrel and the screw of an extrusion device, and is molded into an aerosol-generating substrate 10 through the orifice of the discharge port of the barrel.
The cross-sectional profile shape of the aerosol-generating substrate 10 is not limited, and exemplary, the cross-sectional profile shape of the aerosol-generating substrate 10 is circular (see fig. 1), elliptical, polygonal (including but not limited to triangular, square, or prismatic, etc.), racetrack-shaped, or contoured, etc., wherein contoured refers to other symmetrical or asymmetrical shapes than those previously listed. The aerosol-generating substrate 10 has a cross-sectional shape that is other than regular, and has good product consistency, facilitating monitoring of product quality.
It is to be understood that the contour shape of the cross-section of the aerosol-generating substrate 10 refers to the shape of the outermost edge line of the cross-section of the aerosol-generating substrate 10. For example, the contour shape of the cross-section of the aerosol-generating substrate 10 refers to the shape of the outermost edge line of the cross-section that the base section 1 and the adjustment section 2 together form.
The axial direction is the extending direction of the aerosol-generating substrate 10. For example, the aerosol-generating substrate 10 is extrusion molded, the axial direction being the direction of extension of the aerosol-generating substrate 10 during extrusion. The radial direction is perpendicular to the axial direction, the outer direction means the direction away from the central area along the radial direction, and the inner direction is opposite to the outer direction.
Referring to fig. 1, the aerosol-generating substrate 10 has a cross-sectional profile that is circular. The embodiment of the application is illustrated by taking the shape of the cross-section profile of the aerosol-generating substrate 10 as a circle, i.e. the aerosol-generating substrate 10 as a whole is a cylinder. The axial dimension of the aerosol-generating substrate 10 is greater than the maximum distance between two points in its cross-section, e.g. the diameter.
It will be appreciated that if the cross-sectional profile of the aerosol-generating substrate 10 is circular, the aerosol-generating substrate 10 as a whole is prismatic.
In one embodiment, referring to fig. 1 to 9, the adjusting section 2 is formed with a first air passage 2a penetrating at least one end thereof in the axial direction. For example, the first air passage 2a penetrates one end of the adjustment section 2 in the axial direction. For another example, the first air passage 2a penetrates both ends of the adjustment section 2 in the axial direction. The air flow may flow axially from one end of the conditioning section 2 to the other end of the conditioning section 2. In this way, the first air passage 2a can collect and circulate the aerosol, and the release path of the aerosol is cleared, so that the extraction efficiency of the aerosol can be improved. The first air flue 2a penetrates through two ends of the adjusting section 2 along the axial direction, air flow formed by air carrying aerosol can flow more smoothly, the air flow flowing resistance is smaller, the suction resistance in the suction process can be remarkably reduced, and the suction experience is improved.
The number of the first air passages 2a is not limited, and for example, the first air passages 2a may be one or more.
In one embodiment, referring to fig. 4 to 9, the base section 1 is formed with a second air passage 1b penetrating at least one end thereof in the axial direction. For example, the second air passage 1b penetrates one end of the base section 1 in the axial direction. For another example, the second air passage 1b penetrates both ends of the base section 1 in the axial direction. The air flow may flow axially from one end of the basic section 1 to the other end of the basic section 1. In this way, the second air passage 1b can collect and circulate the aerosol, and the release path of the aerosol is opened, so that the extraction efficiency of the aerosol can be improved. The second air flue 1b runs through the two ends of the basic section 1 along the axial direction, so that air flow formed by air carrying aerosol can flow more smoothly, the air flow resistance is smaller, the suction resistance in the suction process can be remarkably reduced, and the suction experience is improved.
The number of the second air passages 1b is not limited, and for example, the second air passages 1b may be one or more.
In one embodiment, referring to fig. 1 to 9, the first air passage 2a and/or the second air passage 1b are straight air passages extending along a straight line. The linear air passage is easy to form, and the manufacturing difficulty can be reduced. The flow resistance of the air flow in the straight air passage is relatively small.
In one embodiment, the first air passage 2a and/or the second air passage 1b is a curved air passage, and at least part of the hole section of the curved air passage is curved with a non-curvature. The curved air passage can greatly increase the flow path of the air flow without obviously increasing the axial length, and the contact time between the air flow and the wall surface of the curved air passage can be prolonged, so that the extraction rate of the aerosol is improved.
In one embodiment, the curved airway is spiral. That is, the three-dimensional shape of the curved airway is a spatial spiral. The line connecting any point of the spiral curve-shaped air passage with the starting point has an inclined angle relative to the axis. The spiral curve-shaped air passage can greatly prolong the flow path of air flow, separate out aerosol from a medium into the curve-shaped air passage, and improve the flow speed of the aerosol in the adjusting section 2 or the basic section 1, so that the impact force of the air flow is improved, the aerosol can be uniformly mixed, the uniformity of the aerosol is improved, and the suction feeling of a user is improved.
It should be noted that micropores may be present in both the interior of the conditioning section 2 and the interior of the base section 1, e.g. for an aerosol-generating substrate 10 of a particle combination, the particle-to-particle gaps constitute micropores. However, the first air passage 2a and the second air passage 1b are different from the micro-holes, the first air passage 2a and the second air passage 1b belong to holes in the macroscopic sense, the micro-holes belong to holes in the microscopic sense, and the cross-sectional area, the length and the like of the first air passage 2a and the second air passage 1b are much larger than those of the micro-holes. The first air passage 2a and the second air passage 1b are mainly formed by processing a designed die, such as a die, so that the cross-sectional area, the length and the like of the first air passage 2a and the second air passage 1b can be changed according to design requirements, the size of the micro-holes is determined by gaps among particles, for example, a material for forming the aerosol-generating substrate 10 is a granular material, the aerosol-generating substrate 10 formed by extrusion of the material has micro-holes, the cross-sectional area, the length and the like of the micro-holes are naturally formed by extrusion process and raw material components, and the micro-holes can be formed by certain expansion of the material after extrusion and flowing out of the die.
In an embodiment, referring to fig. 4 and 5, a ring-shaped placement space is formed in the base section 1, the adjusting section 2 is located in the placement space, both inner and outer sides of the adjusting section 2 along the radial direction are connected with the base section 1, and the inner surface or the outer surface of the base section 1 along the radial direction is a heating surface. That is, the heat transfer process is such that the portion of the base section 1 having the heating surface is transferred to the conditioning section 2 in a radial direction and then to the cold end portion of the base section 1. Because the parameters of the adjusting section 2 and the basic section 1 are different, the adjusting section 2 can adjust the heat transfer rate from the part of the basic section 1 with the heating surface to the cold end part of the basic section 1, so that the aerosol release rate tends to be consistent in the heating process.
The radially inner or outer surface of the basic section 1 is a heating surface. Illustratively, in some embodiments, the radially inner surface of the base section 1 is a heating surface. It is possible that the central area of the basic segment 1 is formed with a heating opening, at least part of the heating element being located in the heating opening, the circumferential surface of the heating opening being the radially inner surface of the basic segment 1, i.e. the heating surface. In other embodiments, the radially outer surface of the base section 1 is a heating surface. It may be that the heating element surrounds the outer surface of the basic segment 1. That is, the heating member may have a cylindrical structure that is sleeved on the outer circumference of the base section 1.
In an exemplary embodiment, referring to fig. 4 and 5, the medium of the adjusting section 2 extends in the radial direction and connects two circumferential surfaces of the placing space in the radial direction.
In some embodiments, the cross-sectional shape of the first air passage 2a is not limited, and exemplary, the cross-sectional shape of the first air passage 2a may be circular, polygonal (including but not limited to triangular, square, or prismatic, etc.), elliptical, racetrack, fan-shaped, or shaped, etc., wherein shaped refers to other symmetrical or asymmetrical shapes than those listed above.
In one embodiment, referring to fig. 4, the wall thickness H2 of the media of the conditioning section 2 is less than the wall thickness H1 of the media of the base section 1. Because the wall thickness H2 of the medium of the adjusting section 2 is smaller than the wall thickness H1 of the medium of the base section 1, the wall thickness H2 of the medium of the adjusting section 2 for conducting heat is smaller, the heat transfer rate of the adjusting section 2 is lower than that of the base section 1, so that the heat transfer efficiency from the part of the base section 1 with the heating surface to the cold end part of the base section 1 is reduced, and the release consistency of aerosol in the pumping process is good.
In one embodiment, referring to fig. 4, the adjusting section 2 includes 12 square first air passages 2a and 4 fan-shaped first air passages 2a, and the 12 square first air passages 2a and the 4 fan-shaped first air passages 2a are equally distributed along the circumferential direction. The heat transfer efficiency can be adjusted by adjusting the wall thickness H2 of the medium surrounding the first air passage 2 a.
It is to be understood that the wall thickness of the medium may refer to the wall thickness of the medium surrounding the first air duct 2a or the second air duct 1 b.
In one embodiment, referring to fig. 4 and 5, the base section 1 includes an outer ring portion 11 and a central portion 12, wherein the outer ring portion 11 surrounds the outer periphery of the central portion 12 to define a placement space together, and the wall thickness of the medium of the central portion 12 is 0.2mm to 0.25mm. Illustratively, the wall thickness of the media of the central portion 12 is 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, or 0.25mm, etc. Illustratively, the media of the conditioning segment 2 each extend radially and connect the outer ring portion 11 and the central portion 12. Since the material used for forming the aerosol-generating substrate 10 is a solid-liquid mixture, it has viscosity, and is easily adhered to a mold such as a die, if the wall thickness of the medium in the center portion 12 is less than 0.2mm or more than 0.25mm, the manufacturing process of the aerosol-generating substrate 10 such as extrusion process is complicated, and the three of the outer ring portion 11, the center portion 12 and the adjustment portion 2 are difficult to be extrusion-molded, and the yield is low.
In one embodiment, the total cross-sectional area of the media of the base section 1 is greater than the total cross-sectional area of the media of the conditioning section 2. Illustratively, the basic segment 1 comprises an outer ring portion 11 and a central portion 12, the outer ring portion 11 surrounding the periphery of the central portion 12 to together define a placement space, the media of the conditioning segment 2 each extending radially and connecting the outer ring portion 11 and the central portion 12, the sum of the total cross-sectional area of the media of the outer ring portion 11 and the total cross-sectional area of the media of the central portion 12 being larger than the total cross-sectional area of the media of the conditioning segment 2.
In this embodiment, the heating area of the adjusting section 2 is smaller than that of the base section 1, the heat transfer channels formed by the medium used for heat conduction of the adjusting section 2 are relatively fewer, the heat transfer rate of the adjusting section 2 is lower than that of the base section 1, so that the heat transfer efficiency from the part of the base section 1 with the heating surface to the cold end part of the base section 1 is reduced, and the release consistency of aerosol in the pumping process is good.
In one embodiment, referring to fig. 5, the adjusting section 2 includes 8 rectangular first air passages 2a and 4 fan-shaped first air passages 2a, and the 8 rectangular first air passages 2a and the 4 fan-shaped first air passages 2a are equally distributed along the circumferential direction. By increasing the cross-sectional area of the first air passage 2a, the amount of medium surrounding the first air passage 2a is reduced, that is, the number of heat conduction paths in the adjustment section 2 is reduced, thereby reducing the total cross-sectional area of the medium in the adjustment section 2.
In one embodiment, the mass of the base section 1 is greater than the mass of the conditioning section 2. That is, the mass of the medium used for heat transfer by the adjusting section 2 is less than that of the medium used for heat transfer by the base section 1, and the heat transfer rate of the adjusting section 2 is lower than that of the base section 1, so that the heat transfer efficiency from the part of the base section 1 with the heating surface to the cold end part of the base section 1 is reduced, and the release consistency of aerosol in the sucking process is good.
In one embodiment, the thermal conductivity of the conditioning segment 2 is less than the thermal conductivity of the base segment 1. The smaller the heat conductivity is, the lower the heat conduction efficiency is, the smaller the heat conductivity of the adjusting section 2 is, the heat transfer rate of the adjusting section 2 is lower than that of the base section 1, so that the heat transfer efficiency from the part of the base section 1 with the heating surface to the cold end part of the base section 1 is reduced, and the release consistency of aerosol in the sucking process is good.
In one embodiment, referring to fig. 1 to 3 and fig. 6 to 9, the base section 1 surrounds the outer periphery of the adjustment section 2, and the radially inner surface of the adjustment section 2 is a heating surface or the radially outer surface of the base section 1 is a heating surface. Illustratively, in some embodiments, the central region of the conditioning segment 2 is formed with a mounting opening, and at least a portion of the heating element is located within the mounting opening, and the circumferential surface of the mounting opening is the radially inner surface of the conditioning segment 2, i.e., the heating surface. In other embodiments, the radially outer surface of the base section 1 is a heating surface. It may be that the heating element surrounds the outer surface of the basic segment 1. That is, the heating member may have a cylindrical structure that is sleeved on the outer circumference of the base section 1.
In one embodiment, referring to fig. 1, the base section 1 has a ring-shaped structure, and the distance L between two sides of the base section 1 in the radial direction is 0.2mm to 1mm. The distance L between the two radial sides of the base section 1 is, for example, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.9mm or 1mm, etc. On the one hand, heat is conducted along the radial direction through the foundation section 1, the distance L between the two radial side surfaces of the foundation section 1 is the size, the radial conduction path of the heat is long, the conduction time of the heat on the foundation section 1 can be effectively prolonged, the heat transfer efficiency between the foundation section 1 and the adjusting section 2 is reduced, and the release consistency of aerosol in the sucking process is good. On the other hand, the base section 1 and the adjusting section 2 are formed by extrusion, materials forming the base section 1 and the adjusting section 2 are solid-liquid mixtures and have viscosity, the distance between two radial side surfaces of the base section 1 is smaller than 0.2mm or larger than 1mm, the extrusion process is complex, the materials are easy to adhere to a die such as a mouth die, the extrusion is difficult, and the yield is low.
In some embodiments, referring to fig. 1, the base section 1 does not have the second air passage 1b. That is, the number of second air passages 1b is zero. Both radial sides of the basic section 1 are continuous sides. It is understood that the base section 1 may have micro-holes without the second air passage 1b.
The basic section 1 has a ring-shaped structure. May be a circular ring, an elliptical ring or a polygonal ring.
In one embodiment, referring to fig. 2 and 3, the base section 1 is formed with a partition groove 1a, and the partition groove 1a penetrates through two radial sides of the base section 1 in the radial direction. That is to say that both radial sides of the basic section 1 are discontinuous sides. The isolating groove 1a can reduce the total cross-sectional area of the base section 1, and the heat received by the base section 1 is reduced, so that the heat transfer efficiency between the base section 1 and the regulating section 2 is reduced, and the release consistency of aerosol in the sucking process is good.
In some embodiments, the partition groove 1a may be one. In other embodiments, the partition grooves 1a may be plural, and the plural partition grooves 1a are circumferentially spaced apart. For example, the plurality of partition grooves 1a are uniformly distributed at intervals in the circumferential direction.
In one embodiment, referring to fig. 9, the thermal conductivity of the base section 1 is less than the thermal conductivity of the conditioning section 2. The base section 1 surrounds the periphery of the adjusting section 2, the smaller the thermal conductivity of the base section 1 is, the less heat is conducted by the base section 1 in unit time, the heat transfer efficiency between the base section 1 and the adjusting section 2 is reduced, and the release consistency of aerosol in the sucking process is good.
In one embodiment, referring to fig. 6 to 8, an air space 10a is formed between the base section 1 and the conditioning section 2 to isolate the two. That is, the base section 1 is fitted around the outer periphery of the adjustment section 2, and an air space 10a is formed between the radially inner peripheral surface of the base section 1 and the radially outer peripheral surface of the adjustment section 2. That is, the base section 1 and the adjustment section 2 are not in contact. Air is a bad conductor of heat, and the base section 1 and the regulating section 2 are isolated by an air interval space 10a, so that the heat transfer efficiency between the base section 1 and the regulating section 2 is reduced, and the release consistency of aerosol in the sucking process is good.
In other embodiments, referring to fig. 4, 5 and 9, the base section 1 and the adjustment section 2 are connected. The adjusting section 2 is connected to the base section 1 by means of a radially extending medium.
In some embodiments, the functional section 20 may be provided with only the filter section 21.
In other embodiments, referring to fig. 10 and 11, the functional section 20 further includes a cooling section 22, where the cooling section 22 is located between the filtering section 21 and the aerosol-generating substrate 10, and the cooling section 22 is configured to cool the aerosol before the filtering section 21 filters the aerosol. The cooling section 22 may improve the "hot mouth" phenomenon when the user inhales the aerosol.
The cooling material used in the cooling section 22 includes, but is not limited to, one or more of PE (polyethylene), PLA (Polylactic Acid ), PBAT (Polybutylene ADIPATE TEREPHTHALATE, polybutylene adipate terephthalate), PP (Polypropylene), acetate fiber, and propylene fiber.
The filtering material used in the filtering section 21 includes, but is not limited to, one or more of PE (polyethylene), PLA (Polylactic Acid ), PBAT (Polybutylene ADIPATE TEREPHTHALATE, polybutylene adipate terephthalate), PP (Polypropylene), acetate fiber, and propylene fiber.
The material of the cooling section 22 and the material of the filtering section 21 may be the same or different.
The aerosol-generating substrate 10 may be used for pharmaceutical, cosmetic or other purposes.
In one embodiment, the aerosol-generating substrate 10 comprises a plant material, an adjunct material, a smoke generating material, an adhesive material, and a flavor material.
Plant material is used to produce aerosols when heated. The auxiliary raw material is used for providing skeleton support for plant raw materials. The smoke agent feedstock is used to produce a substantial amount of smoke when heated. The binder material is used to bond the component materials. Perfume raw materials are used to provide a characteristic fragrance. Thus, the plant raw material and the fumigant raw material can ensure the aerosol generation amount, and the spice raw material can promote the release of the aroma in the sucking process, so that the user experience is improved. The auxiliary raw material not only can improve the fluidity of the material, but also can enable the aerosol-generating substrate 10 to be in a porous structure so as to facilitate the extraction and flow of the aerosol. The adhesive raw material ensures that plant raw material powder, auxiliary agent and the like form a stable mixture, and the loosening of the structure is avoided.
In one embodiment, the plant material is one or more of tobacco leaf material, tobacco leaf fragments, tobacco stems, tobacco powder, fragrant plant, etc. after crushing. The plant raw material is a core source of the fragrance, and endogenous substances in the plant raw material can generate physiological satisfaction for a user, and the endogenous substances such as alkaloids enter human blood to promote the pituitary to generate dopamine, so that the physiological satisfaction is obtained.
In one embodiment, the auxiliary raw material can be one or a combination of more of inorganic filler, lubricant and emulsifier. Wherein the inorganic filler comprises one or more of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talcum powder and diatomite. The inorganic filler can provide skeletal support for the plant material, and at the same time, the inorganic filler also has micropores, which can increase the porosity of the aerosol-generating substrate 10, thereby increasing the aerosol release rate.
The lubricant comprises one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase fluidity of plant raw material powder, reduce friction force among plant raw material powder, ensure that the overall density of plant raw material powder distribution is uniform, reduce pressure required in the extrusion molding process and reduce abrasion of a die.
The emulsifier comprises one or more of polyglycerol fatty acid ester, tween-80 and polyvinyl alcohol. The emulsifier can slow down the loss of the fragrant substances in the storage process to a certain extent, increase the stability of the fragrant substances and improve the sensory quality of the product.
In one embodiment, the smoke source may include one or more combinations of monohydric alcohols (e.g., menthol), polyhydric alcohols (e.g., propylene glycol, glycerol, triethylene glycol, 1, 3-butylene glycol, and tetraethylene glycol), esters of polyhydric alcohols (e.g., glyceryl triacetate, triethyl citrate, glyceryl diacetate mixture, triethyl citrate, benzyl benzoate, tributyrin), monocarboxylic acids, dicarboxylic acids, polycarboxylic acids (e.g., lauric acid, myristic acid), or aliphatic esters of polycarboxylic acids (e.g., dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1, 3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, termitidine (Triactin), meso-erythritol, glyceryl diacetate mixture, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl benzoate, tributyrin, lauryl acetate).
In one embodiment, the binder material is in intimate contact by interfacial wetting with the component materials, creating intermolecular attractive forces that act to bind the component materials, e.g., powders, liquids, etc. The binder material may be natural plant extracted, nonionic modified viscous polysaccharide, including one or more of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The binder serves to bind the particles together and is not easily loosened, and in addition, improves the water resistance of the aerosol-generating substrate 10 and is harmless to the human body.
In one embodiment, the perfume raw materials are used to provide a characteristic aroma, such as a solid or liquid substance of hay, roasted sweet, nicotine. The flavor raw materials may include one or more combinations of tobacco, flavored plant extracts, essential oils, absolute oils, and the flavor raw materials may include one or more combinations of monomeric flavoring substances, such as megastigmatrienone, neophytadiene, geraniol, nerol, and the like.
In the description of the present application, reference to the terms "one embodiment," "some embodiments," "other embodiments," "still other embodiments," or "exemplary" etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In the present application, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in the present application and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (16)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310817621.8A CN119257303A (en) | 2023-07-04 | 2023-07-04 | Aerosol generating substrate, aerosol generating product and electronic atomization device |
| PCT/CN2024/099685 WO2025007734A1 (en) | 2023-07-04 | 2024-06-17 | Aerosol generating substrate, aerosol generating product, and electronic atomization device |
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| CN202310817621.8A CN119257303A (en) | 2023-07-04 | 2023-07-04 | Aerosol generating substrate, aerosol generating product and electronic atomization device |
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| CN105167182B (en) * | 2015-09-06 | 2018-11-16 | 叶菁 | The preparation method of non-combustion type low-temperature cigarette product and aerosol segment occurred based on phase-change temperature control formula fuel assembly |
| DE102018100749A1 (en) * | 2018-01-15 | 2019-07-18 | Schott Ag | Porous sintered bodies for use as a liquid storage and evaporator |
| TW202241288A (en) * | 2021-04-23 | 2022-11-01 | 瑞士商傑太日煙國際股份有限公司 | An aerosol generating article |
| CN216701610U (en) * | 2021-12-08 | 2022-06-10 | 上海烟草集团有限责任公司 | A kind of aerosol generation product, device and system for heating aerosol generation product |
| CN114176252B (en) * | 2021-12-30 | 2025-04-29 | 上海烟草集团有限责任公司 | An aerosol generating product, preparation method and testing method |
| CN217309183U (en) * | 2022-04-25 | 2022-08-30 | 深圳市卓力能技术有限公司 | Aerosol generating product with frame type heat uniform distribution component |
| CN218354580U (en) * | 2022-07-08 | 2023-01-24 | 深圳麦时科技有限公司 | Aerosol-forming device and aerosol-forming product |
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