CN217937241U - Atomizing core, atomizer and aerosol generating device - Google Patents
Atomizing core, atomizer and aerosol generating device Download PDFInfo
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- CN217937241U CN217937241U CN202221964167.6U CN202221964167U CN217937241U CN 217937241 U CN217937241 U CN 217937241U CN 202221964167 U CN202221964167 U CN 202221964167U CN 217937241 U CN217937241 U CN 217937241U
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
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- A—HUMAN NECESSITIES
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- 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
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- A—HUMAN NECESSITIES
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- 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
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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
- 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 utility model provides an atomizing core, atomizer and aerosol generating device, in the atomizing core structure, porous base member is including the first base member layer of range upon range of setting, stock solution medium and second base member layer, and set up the piece that generates heat on first base member layer, because the porosity and/or the aperture of first base member layer to second base member layer are predetermined gradient change, make the inside three-dimensional network pore structure who forms the intercommunication of porous base member, not only can make porous base member can carry out the layer-feed formula by layer and lead the liquid, reach control and improve the purpose of leading liquid speed, and press from both sides the stock solution medium who locates between first base member layer and the second base member layer and can form the matrix to the aerosol and store, shorten the transmission distance that the aerosol formed the matrix, be favorable to the aerosol to form the matrix stability, smoothly transmit to first base member layer, can fully supply liquid to the piece that generates heat on the first base member layer, satisfy the confession liquid feeding demand of big aerosol volume, avoid the atomizing core to appear not abundant dry burning, stick with paste the core, the problem of carbon deposit.
Description
Technical Field
The utility model belongs to the technical field of atomize, in particular to atomizing core, atomizer and aerosol generating device.
Background
Aerosol generating devices typically comprise an atomizer and a power supply device electrically connected to the atomizer, the atomizing wick of which is capable of heating and atomizing an aerosol-forming substrate under the electrical drive of the power supply device to form an aerosol for inhalation by a user.
At present, the atomizer uses ceramic atomizing core to heat and atomize aerosol formation matrix usually, and the ceramic base member of ceramic atomizing core generally adopts the integrated into one piece mode of homogeneous structure to form for the inside porosity of ceramic base member is evenly distributed with the aperture, causes the ceramic base member to have the defect that the drain rate is poor easily, thereby leads to supplying liquid not enough, not only is difficult to satisfy the absorption demand of big aerosol volume, but also can cause ceramic atomizing core to produce dry combustion, paste the core, phenomenons such as carbon deposit.
SUMMERY OF THE UTILITY MODEL
Based on the above-mentioned problem that exists among the prior art, one of the purposes of the utility model is to provide an atomizing core to solve current ceramic atomizing core and lead the difference in liquid velocity, lead to supplying liquid not enough, not only be difficult to satisfy the absorption demand of big aerosol volume, but also can cause ceramic atomizing core to produce the dry combustion method, paste the problem of core, carbon deposit.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an atomizing core comprising:
a porous substrate comprising a first substrate layer, a second substrate layer and a reservoir medium for storing aerosol-forming substrate, the reservoir medium being sandwiched between the first and second substrate layers, the aerosol-forming substrate of the second substrate layer being transferable to the first substrate layer via the reservoir medium; and
the heating piece is used for heating and atomizing aerosol to form a substrate after being electrified and is arranged on the first substrate layer;
and in the direction from the first substrate layer to the second substrate layer, the porosity and/or the pore diameter of the first substrate layer, the liquid storage medium and the second substrate layer are/is changed in a preset gradient manner.
Further, the first substrate layer, the liquid storage medium and the second substrate layer are all annular layers, the liquid storage medium is sleeved outside the first substrate layer, and the second substrate layer is sleeved outside the liquid storage medium, so that aerosol-forming substrates absorbed by the second substrate layer can be transmitted to the first substrate layer through the liquid storage medium.
Furthermore, an atomization surface is formed on the inner side surface of the first substrate layer, and the heating element is arranged on the atomization surface.
Further, at least one liquid storage layer is arranged between the first substrate layer and the second substrate layer, and the liquid storage medium is formed by the at least one liquid storage layer.
Further, the porosity and/or pore size of the first substrate layer, the porosity and/or pore size of the liquid storage medium, and the porosity and/or pore size of the second substrate layer are in a trend of increasing in a layer-by-layer gradient manner; or the porosity and/or the pore diameter of the first substrate layer and the porosity and/or the pore diameter of the liquid storage medium are/is changed in a trend of increasing in a gradient manner layer by layer, and the porosity and/or the pore diameter of the liquid storage medium and the porosity and/or the pore diameter of the second substrate layer are/is changed in a trend of decreasing in a gradient manner layer by layer.
Further, the porosity of the first substrate layer, the liquid storage medium or the second substrate layer is 45% -65%; or the porosity of the first substrate layer, the liquid storage medium and the second substrate layer is 45-65%.
Further, the aperture of the first substrate layer, the liquid storage medium or the second substrate layer is 10-70 μm; or the aperture of the first substrate layer, the aperture of the liquid storage medium and the aperture of the second substrate layer are all 10-70 mu m.
Further, the porosity and/or pore size of the first matrix layer is smaller than the porosity and/or pore size of the liquid storage medium;
or the porosity and/or pore size of the first matrix layer is smaller than that of the liquid storage medium, and the porosity and/or pore size of the first matrix layer is smaller than or equal to that of the second matrix layer;
or the porosity and/or pore size of the first substrate layer is smaller than the porosity and/or pore size of the stock solution medium, and the porosity and/or pore size of the second substrate layer is smaller than the porosity and/or pore size of the stock solution medium;
alternatively, the porosity and/or pore size of the first matrix layer is less than the porosity and/or pore size of the reservoir medium, and the porosity and/or pore size of the second matrix layer is greater than the porosity and/or pore size of the reservoir medium.
Further, the first substrate layer, the liquid storage medium and the second substrate layer are all porous ceramic layers with micropores.
In order to achieve the above object, the utility model adopts the following technical scheme: an atomizer is provided, which comprises the atomizing core provided by any scheme.
Based on the above-mentioned problem that exists among the prior art, the utility model provides a third of the purpose is to provide an aerosol generating device who has the atomizing core or the atomizer that any above-mentioned scheme provided.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an aerosol generating device comprising the atomizing wick or the atomizer provided in any of the above aspects.
The embodiment of the utility model provides an in above-mentioned one or more technical scheme, compare with prior art, have one of following beneficial effect at least:
the embodiment of the utility model provides an in the atomizing core, atomizer and aerosol generating device, in the atomizing core structure, porous base member is including the first base member layer of range upon range of setting, stock solution medium and second base member layer, and set up the piece that generates heat on first base member layer, because the porosity and/or the aperture of first base member layer to second base member layer are predetermined gradient change, make the inside three-dimensional network pore structure who forms the intercommunication of porous base member, not only can make porous base member can carry out the layer-by-layer and advance the formula drain, reach control and improve the purpose of drain rate, and press from both sides the stock solution medium who locates between first base member layer and the second base member layer and can store aerosol formation matrix, shorten the transmission distance that aerosol formed the matrix, be favorable to aerosol formation matrix stable, smoothly transmit to first base member layer, not only can supply liquid to the piece that generates heat on the first base member layer fully, satisfy the absorption of big aerosol volume and feed liquid demand, and avoid atomizing core to appear insufficiently and produce the dry combustion, stick with paste the core, the problem of carbon deposit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic perspective view of an atomizing core provided in an embodiment of the present invention;
FIG. 2 is a schematic top view of the atomizing core of FIG. 1;
FIG. 3 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic cross-sectional structural view of an atomizing core provided in another embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of an atomizing core according to another embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a porous matrix; 11-a first substrate layer; 12-a second substrate layer; 13-a reservoir medium; 14-atomizing surface; 2-heating element.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "plurality" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1 to 5, an atomizing core according to an embodiment of the present invention will be described. The embodiment of the utility model provides an atomizing core is used for the atomizer, and atomizing core can generate heat under aerosol generating device's power supply unit's electric drive, will form aerosol by the aerosol formation substrate heating atomization that stores in the atomizer.
Referring to fig. 1, 2 and 3 in further combination, an atomizing core provided by an embodiment of the present invention includes a porous base 1 and a heat generating member 2, the porous base 1 includes a first base layer 11, a second base layer 12 and a liquid storage medium 13 for storing an aerosol-forming substrate, and the liquid storage medium 13 is sandwiched between the first base layer 11 and the second base layer 12. It should be noted that in some embodiments, at least one liquid storage layer is disposed between the first substrate layer 11 and the second substrate layer 12, and the at least one liquid storage layer may constitute the liquid storage medium 13. The first substrate layer 11, the second substrate layer 12 and the liquid storage medium 13 are all provided with micropores, so that the porous substrate 1 forms a three-dimensional network pore structure which can store and transmit aerosol to form a substrate and is communicated with each other. The heating element 2 is arranged on the first substrate layer 11 of the porous substrate 1, and the heating element 2 can be heated and atomized into aerosol to form a substrate after being electrified. In some embodiments, the porosity of the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 varies with a predetermined gradient along the thickness direction of the porous substrate 1, i.e., from the first substrate layer 11 to the second substrate layer 12. In other embodiments, the pore diameters of the first substrate layer 11, the liquid storage medium 13 and the second substrate layer 12 vary in a predetermined gradient along the thickness direction of the porous substrate 1, i.e., from the first substrate layer 11 to the second substrate layer 12. In other embodiments, the porosity and pore size of the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 vary in a predetermined gradient along the thickness direction of the porous substrate 1, i.e., from the first substrate layer 11 to the second substrate layer 12. In the above embodiment, the first substrate layer 11 has a small porosity and/or pore size, and the micropores are uniform and fine, so as to provide more atomizing cores, so that the temperature distribution is uniform, which is beneficial to improving the atomizing efficiency and the atomizing amount of the aerosol-forming substrate. The relatively large porosity and/or pore size of the second substrate layer 12 facilitates rapid adsorption of the aerosol-forming substrate by the second substrate layer 12. When the aerosol-forming device is used, the aerosol-forming substrate is quickly adsorbed by the second substrate layer 12, the aerosol-forming substrate adsorbed by the second substrate layer 12 can be stored in the liquid storage medium 13, the aerosol-forming substrate in the liquid storage medium 13 can be stably and smoothly transmitted to the first substrate layer 11, the heat generating element 2 generates heat after being electrified, the aerosol-forming substrate in the first substrate layer 11 can be heated and atomized, and the atomized aerosol is released or escaped from the surface of the first substrate layer 11 for a user to eat. Therefore, the porosity and/or the pore diameter of the first base layer 11 to the second base layer 12 are/is changed in a preset gradient manner, so that an intercommunicated three-dimensional network pore structure is formed inside the porous base body 1, the porous base body 1 can conduct layer-by-layer liquid guiding layer by layer, the purpose of controlling and improving the liquid guiding speed is achieved, the phenomenon that oil frying and oil leakage are caused by too much liquid absorption at one time is avoided, and the phenomenon that dry burning and core pasting are caused by too little liquid absorption is avoided. Moreover, the liquid storage medium 13 clamped between the first substrate layer 11 and the second substrate layer 12 can store the aerosol-forming substrate, shorten the transmission distance of the aerosol-forming substrate, and is beneficial to stably and smoothly transmitting the aerosol-forming substrate to the first substrate layer 11, so that sufficient liquid can be supplied to the heating element 2 on the first substrate layer 11, the sucking requirement of large aerosol amount is met, and the problems of dry burning, core pasting and carbon deposition caused by insufficient liquid supply of the atomizing core are avoided.
The embodiment of the utility model provides an atomizing core, compared with the prior art, porous base member 1 is including the first base member layer 11 of range upon range of setting, stock solution medium 13 and second base member layer 12, and set up heating element 2 on first base member layer 11, because porosity and/or aperture of first base member layer 11 to second base member layer 12 are predetermined gradient change, make the inside three-dimensional network pore structure who forms the intercommunication of porous base member 1, not only can make porous base member 1 can carry out layer-feed liquid guide layer by layer, reach control and improve the purpose of liquid guide rate, and the stock solution medium 13 of clamp between first base member layer 11 and second base member layer 12 can store aerosol formation matrix, shorten the transmission distance that aerosol formation matrix, be favorable to aerosol formation matrix stable, smoothly transmit to first base member layer 11, not only can supply liquid to heating element 2 on first base member layer 11 fully, satisfy the ingestion demand of big aerosol volume, and avoid atomizing core to supply liquid inadequately and produce the dry burning carbon deposit, the core, the problem of carbon deposit.
Referring to fig. 1, 2 and 3, in some embodiments, the first substrate layer 11, the liquid storage medium 13 and the second substrate layer 12 are annular layers, the liquid storage medium 13 is disposed on the outer side of the first substrate layer 11, and the second substrate layer 12 is disposed on the outer side of the liquid storage medium 13. In this embodiment, the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 are stacked in an annular shape, so that the aerosol-forming substrate absorbed by the second substrate layer 12 can be uniformly and stably transported to the first substrate layer 11 via the liquid storage medium 13. Because the aerosol forming substrate carries out layer-in type liquid guiding through the annular layer, the liquid guiding efficiency is higher, the liquid guiding is more stable, uniform and sufficient, and the increase of the atomization amount of the aerosol is facilitated, so that the sucking requirement of the large aerosol amount is met, and the problems of dry burning, core pasting and carbon deposition caused by insufficient liquid supply of the atomization core are avoided.
Referring to fig. 1, fig. 2 and fig. 3, in some embodiments, the inner side surface of the first substrate layer 11 is formed with an atomizing surface 14, and the heat generating element 2 is disposed on the atomizing surface 14. In this embodiment, when first base member layer 11, stock solution medium 13 and second base member layer 12 are cyclic annular range upon range of setting, medial surface at first base member layer 11 is formed with atomizing face 14, and set up on atomizing face 14 and generate heat piece 2, form the atomizing core of multilayer annular hole gradient mosaic atomizing structure, the volume of this cyclic annular atomizing core not only atomizing aerosol is great, satisfy the demand of inhaling of big aerosol volume, it does not need the manual work to wrap cotton to possess simultaneously, the equipment is convenient, high production efficiency, the advantage that the practicality is strong.
Referring to fig. 3, in some embodiments, the porosity and/or pore size of the first substrate layer 11, the porosity and/or pore size of the liquid storage medium 13, and the porosity and/or pore size of the second substrate layer 12 increase in a gradient manner from layer to layer. In this embodiment, the whole porous substrate 1 utilizes the layer-in liquid guiding rate of the gradient structure, which is beneficial to the transmission and atomization of the aerosol-forming substrate, provides a stable atomization environment, and improves the stability of the mouthfeel. Because the porosity and/or the pore diameter of the first substrate layer 11 are smaller, and the porosity and/or the pore diameter of the first substrate layer 11 are distributed uniformly and finely, the purpose of refining aerosol forming substrate particles can be achieved, more atomizing cores are provided, the temperature on the atomizing surface 14 is distributed uniformly, the atomizing efficiency of the aerosol forming substrate is improved, and the taste of a user for sucking the aerosol is improved. The second substrate layer 12 is close to the aerosol-forming substrate, and under the condition that the porosity and/or pore diameter of the second substrate layer 12 are/is large, stable and smooth transmission of the aerosol-forming substrate is facilitated, the effect of controlling and improving the liquid guiding rate is achieved, oil frying and oil leakage caused by too much liquid absorption at one time are avoided, and dry burning and core pasting caused by too little liquid absorption can be prevented. The liquid storage medium 13 clamped between the first substrate layer 11 and the second substrate layer 12 can store the aerosol forming substrate, shorten the transmission distance of the aerosol forming substrate, and is beneficial to stably and smoothly transmitting the aerosol forming substrate to the first substrate layer 11, so that sufficient liquid supply can be performed on the heating element 2 on the first substrate layer 11, the absorption requirement of large aerosol amount is met, and the problems of dry burning, core pasting and carbon deposition caused by insufficient liquid supply of the atomizing core are avoided. Referring to fig. 4 and 5 in combination, in other embodiments, the porosity and/or pore size of the first substrate layer 11, the porosity and/or pore size of the liquid medium 13, and the porosity and/or pore size of the second substrate layer 12, respectively, increase in a gradient manner from layer to layer.
In some embodiments, the porosity of the first substrate layer 11, the liquid storage medium 13, or the second substrate layer 12 is 45% to 65%, which facilitates uniform and smooth transfer of the aerosol substrate and increases the wicking rate. When the porosity of the first substrate layer 11, the liquid storage medium 13 or the second substrate layer 12 is less than 45%, the liquid guiding is not smooth, so that the liquid supply is insufficient, and the problems of insufficient aerosol amount or dry burning, core pasting and carbon deposition are caused. When the porosity of the first substrate layer 11, the liquid storage medium 13 or the second substrate layer 12 is greater than 65%, the liquid guiding rate is easily uncontrollable, and the phenomenon that oil is absorbed too much once is easily caused, so that oil frying and oil leaking are caused. It is noted that in other embodiments, the first substrate layer 11, the reservoir medium 13, and the second substrate layer 12 may each have a porosity of 45% to 65%.
In some embodiments, the first substrate layer 11, the liquid storage medium 13 or the second substrate layer 12 have a pore size of 10-70 μm, which facilitates uniform and smooth transportation of the aerosol substrate and increases the drainage rate. When the aperture of the first substrate layer 11, the liquid storage medium 13 or the second substrate layer 12 is smaller than 10 μm, the problems of insufficient liquid supply due to poor liquid guiding, insufficient aerosol amount or dry burning, core pasting and carbon deposition are easily caused. When the aperture of the first substrate layer 11, the liquid storage medium 13 or the second substrate layer 12 is larger than 70 μm, the uncontrollable drainage rate is easy to occur, and excessive oil absorption is generated once, which results in oil frying and oil leakage. It is noted that in other embodiments, the pore sizes of the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 may all be 10-70 μm.
It should be noted that the porosity and/or pore size of the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 vary in a predetermined gradient, which may be, but is not limited to, the following. Referring to fig. 3, in some embodiments, the porosity and/or pore size of the first substrate layer 11 is smaller than the porosity and/or pore size of the reservoir medium 13. Referring to fig. 4 and 5 in combination, in other embodiments, the porosity and/or pore size of the first substrate layer 11 is less than the porosity and/or pore size of the reservoir medium 13, and the porosity and/or pore size of the first substrate layer 11 is less than or equal to the porosity and/or pore size of the second substrate layer 12. Referring to fig. 4 and 5 in combination, in other embodiments, the porosity and/or pore size of the first substrate layer 11 is less than the porosity and/or pore size of the reservoir medium 13, and the porosity and/or pore size of the second substrate layer 12 is less than the porosity and/or pore size of the reservoir medium 13. Referring to fig. 3, in other embodiments, the porosity and/or pore size of the first substrate layer 11 is less than the porosity and/or pore size of the reservoir medium 13, and the porosity and/or pore size of the second substrate layer 12 is greater than the porosity and/or pore size of the reservoir medium 13.
In some of these embodiments, the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 are porous ceramic layers with micropores. Of course, the first substrate layer 11, the liquid storage medium 13, and the second substrate layer 12 may be porous glass layers or porous metal layers having micropores.
Based on the above description of the structure of the porous matrix 1, the present invention further proposes a method of preparing the above ceramic porous matrix 1 and different examples and comparative examples:
example 1
The porous ceramic substrate 1 of the embodiment includes three ceramic layers, which are a first substrate layer 11, a ceramic liquid storage medium 13 and a second substrate layer 12, respectively, the first substrate layer 11, the ceramic liquid storage medium 13 and the second substrate layer 12 all have porosity, the first substrate layer 11 is an inner layer, the ceramic liquid storage medium 13 is an intermediate liquid storage layer, the second substrate layer 12 is an outer layer, the porosity of the first substrate layer 11 is less than the porosity of the ceramic liquid storage medium 13, the porosity of the ceramic liquid storage medium 13 is less than the porosity of the second substrate layer 12, the pore diameter of the first substrate layer 11 is less than the pore diameter of the ceramic liquid storage medium 13, the pore diameters of the ceramic liquid storage medium 13 and the second substrate layer 12 are similar, and the preparation method includes the following steps:
1) Preparation of ceramic powder for the first substrate layer 11: after the silicate raw material is sieved by a 200-mesh sieve, 280g of silicon oxide and 474g of silicon nitride are weighed, 251g of glass powder and 251g of 500-mesh graphite pore-forming agent are weighed, the weighed materials are poured into a ball milling tank, 1450g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for 3 hours;
2) Preparing ceramic powder of a ceramic liquid storage medium 13: after the silicate raw material is sieved by a 200-mesh sieve, 280g of silicon oxide and 474g of silicon nitride are weighed, 251g of glass powder and 314g of graphite pore-forming agent with 300 meshes are weighed, poured into a ball-milling tank, 1650g of zirconia balls with the diameter of 10mm are added, and ball-milling and mixing are carried out for 3 hours;
3) Preparation of ceramic powder for the second substrate layer 12: after sieving silicate raw materials by a 200-mesh sieve, weighing 280g of silicon oxide and 474g of silicon nitride, weighing 251g of glass powder and 377g of 300-mesh graphite pore-forming agent, pouring the materials into a ball-milling tank, adding 1850g of zirconia balls with the diameter of 10mm, and carrying out ball-milling mixing for 3 hours;
4) Preheating a mixing roll to 110 ℃, weighing 24wt% (weight percentage) of paraffin and 4wt% (weight percentage) of stearic acid according to the weight of the ceramic powder, adding the prepared ceramic powder when the paraffin is completely melted, stirring and cooling to 90 ℃, adding 3wt% (weight percentage) of oleic acid, starting a vacuum pump, mixing for 4 hours in vacuum, and respectively preparing three-layer ceramic layer injection molding slurry;
5) The inner layer and the outer layer ceramic slurry are placed in different hot presses, the heating element 2 is embedded into a die, the inner layer slurry is injected, after solidification, the movable assembly of the die cavity is adjusted, the outer layer slurry is injected into other presses, and the outer layer forming pressure is slightly greater than the inner layer forming pressure;
6) And (3) placing the hot-pressed green body in a glue discharging furnace, discharging glue for 2 hours at 220 ℃, taking out the green body, and sintering the green body in a sintering furnace for 3 hours at 650 ℃ to obtain the double-layer annular ceramic atomizing core.
Example 2
The porous ceramic substrate 1 of the embodiment includes three ceramic layers, which are a first substrate layer 11, a ceramic liquid storage medium 13 and a second substrate layer 12, respectively, the first substrate layer 11, the ceramic liquid storage medium 13 and the second substrate layer 12 both have porosity, the first substrate layer 11 is an inner layer, the ceramic liquid storage medium 13 is an intermediate liquid storage layer, the second substrate layer 12 is an outer layer, the porosity of the first substrate layer 11 and the porosity of the ceramic liquid storage medium 13 are similar, the porosity of the ceramic liquid storage medium 13 is smaller than the porosity of the second substrate layer 12, the pore diameter of the first substrate layer 11 is smaller than the pore diameter of the ceramic liquid storage medium 13, and the pore diameter of the ceramic liquid storage medium 13 is smaller than the pore diameter of the second substrate layer 12, and the preparation method includes the following steps:
1) Preparation of ceramic powder for the first substrate layer 11: after the feldspar-kaolin mixed mineral raw material is sieved by a 250-mesh sieve, 400g of the feldspar-kaolin mixed mineral is weighed, 251g of glass powder and 215g of 500-mesh graphite pore-forming agent are weighed, the materials are poured into a ball milling tank, 1450g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for 3.5 hours;
2) Preparing ceramic powder of a ceramic liquid storage medium 13: after the feldspar-kaolin mixed mineral raw materials are sieved by a 250-mesh sieve, 400g of the feldspar-kaolin mixed mineral is weighed, 251g of glass powder and 220g of 325-mesh graphite pore-forming agent are weighed and poured into a ball milling tank, 1450g of zirconia balls with the diameter of 10mm are added, and the ball milling and mixing are carried out for 3.5 hours;
3) Preparation of ceramic powder for the second substrate layer 12: after the feldspar-kaolin mixed mineral raw material is sieved by a 250-mesh sieve, 400g of the feldspar-kaolin mixed mineral is weighed, 251g of glass powder and 273g of 200-mesh graphite pore-forming agent are weighed, the materials are poured into a ball milling tank, 1750g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for 3.5 hours;
4) Preheating a mixing roll to 110 ℃, weighing 27wt% (weight percent) of paraffin and 4.5wt% (weight percent) of stearic acid according to the weight of the ceramic powder, adding the prepared ceramic powder when the paraffin is completely melted, stirring and cooling to 90 ℃, adding 2.5wt% (weight percent) of oleic acid, starting a vacuum pump, and carrying out vacuum mixing for 4 hours to respectively prepare three-layer ceramic layer injection molding slurry;
5) The inner and outer layer ceramic slurry is placed in different hot presses, the heating element 2 is embedded into the mould, then the inner layer slurry is injected, after solidification, the movable assembly of the mould cavity is adjusted, and each outer layer slurry is injected into other presses, and the outer layer forming pressure is slightly larger than the inner layer forming pressure;
6) And (3) placing the hot-pressed green body in a glue discharging furnace, discharging glue for 2 hours at 220 ℃, taking out the green body, and sintering the green body in a sintering furnace for 3 hours at 650 ℃ to obtain the double-layer annular ceramic atomizing core.
Example 3
The porous ceramic substrate 1 of the embodiment includes three ceramic layers, which are a first substrate layer 11, a ceramic liquid storage medium 13 and a second substrate layer 12, respectively, the first substrate layer 11, the ceramic liquid storage medium 13 and the second substrate layer 12 all have porosity, the first substrate layer 11 is an inner layer, the ceramic liquid storage medium 13 is an intermediate liquid storage layer, the second substrate layer 12 is an outer layer, the porosity of the first substrate layer 11 is less than the porosity of the second substrate layer 12, the porosity of the second substrate layer 12 is less than the porosity of the ceramic liquid storage medium 13, the pore diameter of the first substrate layer 11 is less than the pore diameter of the ceramic liquid storage medium 13, the pore diameters of the ceramic liquid storage medium 13 and the second substrate layer 12 are similar, and the preparation method includes the following steps:
1) Preparation of ceramic powder for the first substrate layer 11: after the diatomite mineral raw material is sieved by a 325-mesh sieve, 510g of diatomite, 312g of glass powder and 234g of organic pore-forming agent with the median particle size (D50) of 30 mu m are weighed and poured into a ball milling tank, 1450g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for hours;
2) Preparing ceramic powder of a ceramic liquid storage medium 13: after the diatomite raw material is sieved by a 325-mesh sieve, 510g of diatomite, 312g of glass powder and 343g of organic pore-forming agent with the median particle size (D50) of 70 mu m are weighed and poured into a ball milling tank, 1800g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for 4 hours;
3) Preparation of ceramic powder for the second substrate layer 12: after the diatomite raw material is sieved by a 325-mesh sieve, 510g of diatomite, 312g of glass powder and 287g of organic pore-forming agent with the median particle size (D50) of 50 mu m are weighed and poured into a ball-milling tank, 1600g of zirconia balls with the diameter of 10mm are added, and ball-milling and mixing are carried out for 4 hours;
4) Preheating a mixing roll to 110 ℃, weighing 37wt% (weight percent) of paraffin and 6wt% (weight percent) of stearic acid according to the weight of the ceramic powder, adding the prepared ceramic powder when the paraffin is completely melted, stirring and cooling to 90 ℃, adding 2wt% (weight percent) of oleic acid, starting a vacuum pump, carrying out vacuum mixing for 4 hours, and respectively preparing the first substrate layer 11 of ceramic powder and the injection molding slurry of the ceramic liquid storage medium 13;
5) Placing the ceramic powder of the first substrate layer 11 and the ceramic liquid storage medium 13 in different hot presses, embedding the heating element 2 into a mold, injecting inner-layer slurry, adjusting a mold cavity movable assembly after curing, and injecting outer-layer slurry into the other press, wherein the outer-layer molding pressure is slightly greater than the inner-layer molding pressure;
6) And (3) placing the hot-pressed green body in a glue discharging furnace, discharging glue for 1.5 hours at 200 ℃, taking out the green body, and sintering the green body in a sintering furnace for 2 hours at 610 ℃ to obtain the double-layer annular ceramic atomizing core.
Comparative example 1
The porous ceramic substrate 1 of the embodiment includes two ceramic layers, the two ceramic layers are a first substrate layer 11 and a second substrate layer 12 respectively, the first substrate layer 11 and the second substrate layer 12 both have pores, the first substrate layer 11 is an inner layer, the second substrate layer 12 is an outer layer, the porosity of the first substrate layer 11 is less than the porosity of the second substrate layer 12, the pore diameters of the two ceramic layers are similar, and the preparation method includes the following steps:
1) Preparing the porcelain powder of the first substrate layer 11: after sieving silicate raw materials by a 200-mesh sieve, weighing 774g of silicon oxide, 90g of aluminum oxide and 36g of calcium oxide, weighing 300g of glass powder and 225g of organic pore-forming agent with the D50 of 30 mu m, pouring the materials into a ball milling tank, adding 1450g of zirconia balls with the diameter of 10mm, and carrying out ball milling and mixing for 4 hours;
2) Preparing the porcelain powder of the second substrate layer 12: after sieving silicate raw materials by a 200-mesh sieve, weighing 774g of silicon oxide, 90g of aluminum oxide and 36g of calcium oxide, weighing 300g of glass powder and 282g of organic pore-forming agent with the D50 of 30 mu m, putting the materials into a ball-milling tank, adding 1650g of zirconia balls with the diameter of 10mm, and ball-milling and mixing for 4 hours;
3) Preheating a mixing mill to 110 ℃, weighing 20wt% of paraffin and 4wt% of stearic acid according to the weight of the ceramic powder, adding the prepared ceramic powder when the paraffin is completely melted, stirring and cooling to 90 ℃, adding 2wt% of oleic acid, starting a vacuum pump, and mixing in vacuum for 4 hours to respectively prepare first matrix layer 11 ceramic powder and second matrix layer 12 injection molding slurry;
4) Placing the first substrate layer 11 ceramic powder and the second substrate layer 12 injection molding slurry into different hot presses, embedding the heating element 2 into a mold, injecting the inner layer slurry, adjusting a mold cavity movable assembly after curing, and injecting the outer layer slurry into the other press, wherein the outer layer molding pressure is slightly larger than the inner layer molding pressure;
5) And (3) placing the green body subjected to hot press molding in a glue discharging furnace, discharging glue for 2 hours at 220 ℃, taking out the green body, and sintering the green body in a sintering furnace for 3 hours at 650 ℃ to obtain the double-layer annular ceramic atomizing core.
Comparative example 2
The porous ceramic substrate 1 of the present embodiment includes two ceramic layers, which are a first substrate layer 11 and a second substrate layer 12, respectively, the first substrate layer 11 and the second substrate layer 12 both have pores, the first substrate layer 11 is an inner layer, the second substrate layer 12 is an outer layer, the porosity of the first substrate layer 11 is less than the porosity of the second substrate layer 12, and the pore diameter of the first substrate layer 11 is less than the pore diameter of the second substrate layer 12, and the preparation method thereof includes the following steps:
1) Preparation of ceramic powder for the first substrate layer 11: after the diatomite mineral raw material is sieved by a 325-mesh sieve, 374g of diatomite, 510g of glass powder and 320g of organic pore-forming agent with the D50 of 30 mu m are weighed and poured into a ball milling tank, 1450g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for hours;
2) Preparation of ceramic powder for the second substrate layer 12: after the kieselguhr raw material is sieved by a 325-mesh sieve, 374g of kieselguhr, 510g of glass powder and 480g of organic pore-forming agent with 50 mu m of D50 are weighed and poured into a ball milling tank, 1400g of zirconia balls with the diameter of 10mm are added, and ball milling and mixing are carried out for 4 hours;
3) Preheating a mixing roll to 110 ℃, weighing 37wt% of paraffin and 6wt% of stearic acid according to the weight of the ceramic powder, adding the prepared ceramic powder when the paraffin is completely melted, stirring and cooling to 90 ℃, adding 2wt% of oleic acid, starting a vacuum pump, and carrying out vacuum mixing for 4 hours to respectively prepare first matrix layer 11 ceramic powder and second matrix layer 12 injection molding slurry;
4) Placing the first substrate layer 11 ceramic powder and the second substrate layer 12 injection molding slurry into different hot presses, injecting the inner layer slurry after the heating element 2 is embedded into a mold, adjusting a mold cavity movable assembly after curing, and injecting the outer layer slurry into the other press, wherein the outer layer molding pressure is slightly greater than the inner layer molding pressure;
5) And (3) placing the hot-pressed green body in a glue discharging furnace, discharging glue for 1.5 hours at 200 ℃, taking out the green body, and sintering the green body in a sintering furnace for 2 hours at 610 ℃ to obtain the double-layer annular ceramic atomizing core.
The performance tests of the atomized core products with the ceramic porous matrix 1 prepared in the embodiments 1 to 3 and the comparative examples 1 to 2 as samples can obtain the performance index test results of the corresponding samples as shown in the following table, and the comparison results are as follows:
as can be seen from the comparison of the data, the atomizing core samples with the ceramic porous matrix 1 in examples 1 to 3 have good strength, can generate a large amount of smoke, not only meet the sucking requirement of large amount of aerosol, but also avoid dry burning, core pasting and carbon deposition of the ceramic atomizing core.
The embodiment of the utility model provides a still provide an atomizer, the atomizer includes the atomizing core that any embodiment of the aforesaid provided. The atomizer has all the technical characteristics of the atomizing core provided by any one of the embodiments, so that the atomizer has the same technical effect as the atomizing core.
The embodiment of the utility model provides a still provide an aerosol generating device, aerosol generating device includes the atomizer that the atomizing core or the above-mentioned arbitrary embodiment provided that above-mentioned arbitrary embodiment provided. Since the aerosol generating device has all the technical characteristics of the atomizing core or the atomizer provided by any one of the above embodiments, the aerosol generating device has the same technical effects as the atomizing core.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. An atomizing core, comprising:
a porous substrate comprising a first substrate layer, a second substrate layer and a reservoir medium for storing aerosol-forming substrate, the reservoir medium being sandwiched between the first and second substrate layers, the aerosol-forming substrate of the second substrate layer being transferable to the first substrate layer via the reservoir medium; and
the heating piece is used for heating and atomizing aerosol to form a substrate after being electrified and is arranged on the first substrate layer;
and in the direction from the first substrate layer to the second substrate layer, the porosity and/or the pore diameter of the first substrate layer, the liquid storage medium and the second substrate layer are/is changed in a preset gradient manner.
2. The atomizing core of claim 1, wherein the first substrate layer, the reservoir medium, and the second substrate layer are each annular layers, the reservoir medium being disposed about the first substrate layer, and the second substrate layer being disposed about the reservoir medium such that aerosol-forming substrate absorbed by the second substrate layer is transferable through the reservoir medium to the first substrate layer.
3. The atomizing core according to claim 1, wherein an atomizing surface is formed on an inner side surface of the first substrate layer, and the heat generating member is provided on the atomizing surface.
4. The atomizing core of claim 1, wherein at least one reservoir layer is disposed between the first substrate layer and the second substrate layer, at least one of the reservoir layers comprising the reservoir medium.
5. The atomizing core of claim 1, wherein the porosity and/or pore size of the first matrix layer, the porosity and/or pore size of the reservoir medium, and the porosity and/or pore size of the second matrix layer tend to increase in a gradient from layer to layer; or the porosity and/or the pore diameter of the first substrate layer and the porosity and/or the pore diameter of the liquid storage medium are/is changed in a trend of increasing in a gradient manner layer by layer, and the porosity and/or the pore diameter of the liquid storage medium and the porosity and/or the pore diameter of the second substrate layer are/is changed in a trend of decreasing in a gradient manner layer by layer.
6. The atomizing core of claim 1, wherein the porosity of the first substrate layer, the reservoir medium, or the second substrate layer is from 45% to 65%; or the porosity of the first substrate layer, the liquid storage medium and the second substrate layer is 45-65%.
7. The atomizing core of claim 1, wherein the pore size of the first substrate layer, the reservoir medium, or the second substrate layer is 10 to 70 μ ι η; or the aperture of the first substrate layer, the aperture of the liquid storage medium and the aperture of the second substrate layer are all 10-70 mu m.
8. The atomizing core of claim 1, wherein the porosity and/or pore size of the first matrix layer is less than the porosity and/or pore size of the reservoir medium;
or the porosity and/or the pore diameter of the first substrate layer are smaller than those of the liquid storage medium, and the porosity and/or the pore diameter of the first substrate layer are smaller than or equal to those of the second substrate layer;
or the porosity and/or pore size of the first substrate layer is smaller than the porosity and/or pore size of the stock solution medium, and the porosity and/or pore size of the second substrate layer is smaller than the porosity and/or pore size of the stock solution medium;
alternatively, the porosity and/or pore size of the first matrix layer is less than the porosity and/or pore size of the reservoir medium, and the porosity and/or pore size of the second matrix layer is greater than the porosity and/or pore size of the reservoir medium.
9. The atomizing core of any one of claims 1 to 8, wherein the first substrate layer, the reservoir medium, and the second substrate layer are porous ceramic layers having micropores.
10. An atomizer, characterized in that it comprises an atomizing core according to any one of claims 1 to 9.
11. An aerosol generating device comprising an atomising core according to any of claims 1 to 9 or an atomiser according to claim 10.
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| CN202221964167.6U CN217937241U (en) | 2022-07-27 | 2022-07-27 | Atomizing core, atomizer and aerosol generating device |
| PCT/CN2023/100906 WO2024021923A1 (en) | 2022-07-27 | 2023-06-17 | Atomization core, atomizer, and aerosol generation apparatus |
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| CN202221964167.6U CN217937241U (en) | 2022-07-27 | 2022-07-27 | Atomizing core, atomizer and aerosol generating device |
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| WO2024021923A1 (en) * | 2022-07-27 | 2024-02-01 | 常州市派腾电子技术服务有限公司 | Atomization core, atomizer, and aerosol generation apparatus |
| WO2024183552A1 (en) * | 2023-03-06 | 2024-09-12 | 思摩尔国际控股有限公司 | Electronic atomization device and atomization core thereof |
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| US11771850B2 (en) * | 2019-06-18 | 2023-10-03 | Sv3, Llc | Vaporizer pod filtration systems |
| CN112390625B (en) * | 2019-08-12 | 2021-12-28 | 深圳麦克韦尔科技有限公司 | Composite ceramic part, preparation method thereof, atomization assembly and electronic cigarette |
| CN112931952A (en) * | 2021-03-04 | 2021-06-11 | 深圳市基克纳科技有限公司 | Atomizing core and electronic atomization device |
| CN215531637U (en) * | 2021-05-10 | 2022-01-18 | 深圳市基克纳科技有限公司 | Double-deck ceramic atomizing core and atomizer |
| CN217284796U (en) * | 2022-05-06 | 2022-08-26 | 深圳市赛尔美电子科技有限公司 | Combined liquid storage cotton structure, atomizer and electronic atomization device |
| CN217937241U (en) * | 2022-07-27 | 2022-12-02 | 深圳市卓尔悦电子科技有限公司 | Atomizing core, atomizer and aerosol generating device |
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| WO2024021923A1 (en) * | 2022-07-27 | 2024-02-01 | 常州市派腾电子技术服务有限公司 | Atomization core, atomizer, and aerosol generation apparatus |
| WO2024183552A1 (en) * | 2023-03-06 | 2024-09-12 | 思摩尔国际控股有限公司 | Electronic atomization device and atomization core thereof |
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