CN220211946U - Atomizing core, atomizer and aerosol generating device - Google Patents
Atomizing core, atomizer and aerosol generating device Download PDFInfo
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- CN220211946U CN220211946U CN202321704783.2U CN202321704783U CN220211946U CN 220211946 U CN220211946 U CN 220211946U CN 202321704783 U CN202321704783 U CN 202321704783U CN 220211946 U CN220211946 U CN 220211946U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 106
- 238000000889 atomisation Methods 0.000 claims abstract description 80
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
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- 230000000694 effects Effects 0.000 abstract description 33
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model provides an atomization core, an atomizer and an aerosol generating device, wherein a first porous aerogel layer and a second porous aerogel layer with temperature resistance are adopted as liquid guide layers, the second porous aerogel layer is arranged between the first porous aerogel layer and a liquid absorption layer in a separated mode, the first porous aerogel layer is directly used for being in contact with a heating body, the hardness of the first porous aerogel layer is reduced, the embedding effect of the first porous aerogel layer and the heating body is improved, and the dry burning risk of the atomization core is reduced. In addition, as the expansion effect of the first porous aerogel layer after adsorbing the atomized liquid is smaller, the extrusion of the heating body and the atomization channel can be reduced. Simultaneously, through increasing the hardness of second porous aerogel layer, utilize the second porous aerogel layer to form the support to the imbibition layer, take place the inflation deformation in order to cause the extrusion to first porous aerogel layer after effectively preventing that the imbibition layer from adsorbing the atomized liquid to can avoid the imbibition layer of inflation to cause extrusion deformation to heat-generating body and atomizing passageway.
Description
Technical Field
The utility model belongs to the technical field of atomization, and particularly relates to an atomization core, an atomizer and an aerosol generating device.
Background
The aerosol generating device generally comprises an atomizer and a power supply device electrically connected with the atomizer, and the atomizer can heat and atomize an atomized liquid stored in the atomizer to form aerosol under the electric driving action of the power supply device. At present, the atomizing core that the atomizer used mainly includes piece and imbibition cotton that generates heat, and it is through imbibition cotton with the atomized liquid transmission to the piece that generates heat, the piece that generates heat heats the atomized liquid atomizing after the circular telegram generates heat and forms the aerosol. However, when the liquid-absorbing cotton is not adsorbed to the atomized liquid, the liquid-absorbing cotton is assembled into the atomized channel of the atomizer in a squeezing manner, and the liquid-absorbing cotton squeezing heating piece and the atomized channel can appear. In addition, the liquid-absorbing cotton is easy to expand after absorbing the atomized liquid, so that the liquid-absorbing cotton excessively extrudes the heating piece and the atomization channel.
Disclosure of Invention
Based on the above-mentioned problems in the prior art, an object of an embodiment of the present utility model is to provide an atomization core, so as to solve the problem that the liquid-absorbing cotton is easy to expand after absorbing the atomized liquid, and causes the liquid-absorbing cotton to excessively squeeze the heating element and the atomization channel.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided an atomizing core comprising:
the heating body is used for heating and atomizing the atomized liquid to form aerosol;
a liquid guiding layer for transmitting the atomized liquid to the heating element; and
the liquid absorbing layer is used for absorbing and/or storing atomized liquid, and a liquid absorbing surface is arranged on the liquid absorbing layer;
the liquid guide layer comprises a first porous aerogel layer and a second porous aerogel layer which are arranged in a stacked mode, an atomization surface which is in contact with the heating body is arranged on one surface of the first porous aerogel layer, which is away from the second porous aerogel layer, one surface of the second porous aerogel layer, which is away from the first porous aerogel layer, is connected with one surface of the liquid absorption layer, which is away from the liquid absorption surface, and the hardness of the second porous aerogel layer is greater than that of the first porous aerogel layer.
Further, the liquid guiding layer is wound into a tubular liquid guiding body, an atomization channel is formed in the tubular liquid guiding body, and the heating element is arranged in the atomization channel.
Further, the liquid absorbing layer is a cotton sleeve layer sleeved on the outer side of the tubular liquid guiding body.
Further, the heating body is a net-shaped heating piece or a spiral heating wire, an atomization surface is formed on the inner surface of the tubular liquid guide body, and the net-shaped heating piece or the spiral heating wire is embedded on the atomization surface.
Further, the liquid absorbing layer comprises at least one first cotton layer, and at least one first cotton layer is arranged on the second porous aerogel layer in a layer-by-layer manner;
or the liquid absorption layer comprises at least one first cotton layer and at least one second cotton layer, and at least one first cotton layer and at least one second cotton layer are arranged in a layer-by-layer manner;
or, the liquid absorbing layer comprises at least one second cotton layer, and at least one second cotton layer is arranged on the second porous aerogel layer in a layer-by-layer mode.
Or, the liquid absorbing layer comprises at least one first cotton layer and at least one third porous aerogel layer, and the first cotton layer is sandwiched between the second porous aerogel layer and the third porous aerogel layer;
or, the liquid absorbing layer comprises at least one second cotton layer and at least one third porous aerogel layer, and the second cotton layer is sandwiched between the second porous aerogel layer and the third porous aerogel layer;
or, the liquid absorbing layer comprises at least one first cotton layer, at least one second cotton layer and at least one third porous aerogel layer, and the first cotton layer and the second cotton layer are clamped between the second porous aerogel layer and the third porous aerogel layer;
or the liquid absorbing layer comprises at least one first cotton layer and at least two third porous aerogel layers, and the first cotton layer is clamped between two adjacent third porous aerogel layers;
or the liquid absorbing layer comprises at least one second cotton layer and at least two third porous aerogel layers, and the second cotton layer is clamped between two adjacent third porous aerogel layers;
or the liquid absorption layer comprises at least one first cotton layer, at least one second cotton layer and at least two third porous aerogel layers, and the first cotton layer and/or the second cotton layer are/is clamped between two adjacent third porous aerogel layers.
Further, the first porous aerogel layer and/or the second porous aerogel layer is a polyimide layer.
Further, liquid guide holes are formed in the first porous aerogel layer and/or the second porous aerogel layer.
Further, the first porous aerogel layer and/or the second porous aerogel layer has a high temperature resistance ranging from 350 to 500 ℃.
Based on the above-mentioned problems in the prior art, it is a second object of an embodiment of the present utility model to provide an atomizer with the liquid guiding member provided in any of the above-mentioned aspects.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided an atomizer comprising the liquid guide provided in any one of the above aspects.
In view of the foregoing problems in the prior art, it is a third object of an embodiment of the present utility model to provide an aerosol generating device having a liquid guiding member or atomizer according to any of the above aspects.
In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided an aerosol generating device comprising the liquid guide or the nebuliser provided in any one of the above aspects.
Compared with the prior art, the one or more technical schemes in the embodiment of the utility model have at least one of the following beneficial effects:
according to the atomization core, the atomizer and the aerosol generating device, in the atomization core structure, the first porous aerogel layer and the second porous aerogel layer with temperature resistance are adopted as liquid guide layers, the second porous aerogel layer is arranged between the first porous aerogel layer and the liquid suction layer in a separated mode, the first porous aerogel layer is directly used for being in contact with a heating body, the hardness of the first porous aerogel layer is reduced, embedding effect of the first porous aerogel layer and the heating body is improved, and dry burning risk of the atomization core is reduced. In addition, as the expansion effect of the first porous aerogel layer after adsorbing the atomized liquid is smaller, the extrusion of the heating body and the atomization channel can be reduced. Simultaneously, through increasing the hardness of second porous aerogel layer, utilize the second porous aerogel layer to form the support to the imbibition layer, take place the inflation deformation in order to cause the extrusion to first porous aerogel layer after effectively preventing that the imbibition layer from adsorbing the atomized liquid to can avoid the imbibition layer of inflation to cause extrusion deformation to heat-generating body and atomizing passageway.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an atomization core according to an embodiment of the present utility model;
FIG. 2 is a top view of the atomizing core shown in FIG. 1;
FIG. 3 is an exploded view of the atomizing core shown in FIG. 1;
fig. 4 is a schematic perspective view of an atomization core according to another embodiment of the present utility model;
FIG. 5 is a top view of the atomizing core shown in FIG. 4;
FIG. 6 is an exploded view of the atomizing core shown in FIG. 4;
FIG. 7 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 8 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 9 is a schematic perspective view of an atomizing core according to another embodiment of the present disclosure;
FIG. 10 is a top view of the atomizing core shown in FIG. 9;
FIG. 11 is an exploded view of the atomizing core shown in FIG. 9;
FIG. 12 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 13 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 14 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 15 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 16 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 17 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 18 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 19 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 20 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 21 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 22 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 23 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 24 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 25 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 26 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 27 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 28 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 29 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 30 is a top view of an atomizing core according to another embodiment of the present disclosure;
FIG. 31 is a top view of an atomizing core according to another embodiment of the present disclosure;
fig. 32 is a top view of an atomizing core according to another embodiment of the present disclosure.
Wherein, each reference sign in the figure:
1-a heating element;
2-liquid guiding layer; 21-a first porous aerogel layer; 22-a second porous aerogel layer;
3-liquid absorbing layer; 31-a first cotton layer; 32-a second cotton layer; 33-a third porous aerogel layer;
4-atomizing channels; 5-atomizing surface; 6-liquid level.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a plurality of" is one or more, unless specifically defined otherwise. 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 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 32 together, an atomizing core according to an embodiment of the present disclosure will now be described. The atomizing core provided by the embodiment of the utility model is used for an atomizer, and can generate heat under the electric drive of the power supply device of the aerosol generating device, so that atomized liquid stored in the atomizer is heated and atomized to form aerosol.
Referring to fig. 4, fig. 9 and fig. 11 in combination, the atomizing core provided in the embodiment of the utility model includes a heating element 1, a liquid guiding layer 2 and a liquid absorbing layer 3, wherein the heating element 1 can generate heat after being electrified, and the atomized liquid is heated and atomized by the heat generated by the heating element 1. The heating element 1 may be, but is not limited to, a stainless steel heating element, a nichrome heating element, an iron-chromium-aluminum alloy heating element, or a nickel-iron alloy heating element. The liquid guide layer 2 is used for conveying atomized liquid to the heating body 1, the liquid absorption layer 3 is used for absorbing and/or storing the atomized liquid, and the liquid absorption surface 6 for absorbing the atomized liquid is arranged on the liquid absorption layer 3. Wherein, liquid-guiding layer 2 includes the first porous aerogel layer 21 and the second porous aerogel layer 22 of range upon range of setting, is equipped with the atomizing face 5 that contacts with heat-generating body 1 on the one side of first porous aerogel layer 21 facing away from second porous aerogel layer 22, and the one side of second porous aerogel layer 22 facing away from first porous aerogel layer 21 links to each other with the one side of liquid-absorbing layer 3 facing away from liquid-absorbing surface 6, and the hardness of second porous aerogel layer 22 is greater than first porous aerogel layer 21. Because the first porous aerogel layer 21 contacts with the heating body 1 through the atomizing surface 5, the embedding effect of the first porous aerogel layer 21 and the heating body 1 can be improved by reducing the hardness of the first porous aerogel layer 21, the contact area of the first porous aerogel layer 21 and the heating body 1 can be increased, the atomized liquid can be stably and uniformly transmitted to the heating body 1, and the dry burning risk is reduced. In addition, as the expansion effect of the first porous aerogel layer 21 after adsorbing the atomized liquid is smaller (1-3%), the extrusion of the first porous aerogel after adsorbing the atomized liquid to the heating body 1 and the atomizing channel 4 can be reduced, and the heating body 1 and the atomizing channel 4 can be prevented from being extruded and deformed. Further, by increasing the hardness of the second porous aerogel layer 22, the second porous aerogel layer 22 supports the liquid absorbing layer 3, and thus the liquid absorbing layer 3 is prevented from adsorbing the atomized liquid and then expanding and pressing the first porous aerogel layer 21, the heating element 1, and the atomizing channel 4.
Compared with the prior art, the atomization core provided by the embodiment of the utility model adopts the first porous aerogel layer 21 and the second porous aerogel layer 22 with temperature resistance as the liquid guide layer 2, the second porous aerogel layer 22 is arranged between the first porous aerogel layer 21 and the liquid absorption layer 3 in a separated manner, the first porous aerogel layer 21 is directly used for being in contact with the heating body 1, and the embedding effect of the first porous aerogel layer 21 and the heating body 1 is improved by reducing the hardness of the first porous aerogel layer 21, so that the dry burning risk of the atomization core is reduced. Further, since the expansion effect after the first porous aerogel layer 21 adsorbs the atomized liquid is small, the extrusion of the heating element 1 and the atomizing channel 4 can be reduced. Meanwhile, the hardness of the second porous aerogel layer 22 is increased, the second porous aerogel layer 22 is used for supporting the liquid absorbing layer 3, and expansion deformation of the liquid absorbing layer 3 after absorbing atomized liquid is effectively prevented from being caused to squeeze the first porous aerogel layer 21, so that the expansion deformation of the liquid absorbing layer 3 to the heating body 1 and the atomization channel 4 can be avoided.
Referring to fig. 4, fig. 9 and fig. 10 in combination, in some embodiments, the liquid guiding layer 2 is wound into a tubular liquid guiding body, an atomization channel 4 is formed inside the tubular liquid guiding body, and the heating element 1 is disposed in the atomization channel 4, so as to facilitate improvement of embedding effect of the first porous aerogel layer 21 and the heating element 1, increase contact area of the first porous aerogel layer 21 and the heating element 1, enable the atomized liquid to be stably and uniformly transferred to the heating element 1, and reduce risk of dry heating of the atomization core.
Referring to fig. 4, fig. 5 and fig. 6 in combination, in some embodiments, the liquid absorbing layer 3 is a cotton sleeve layer sleeved outside the tubular liquid guiding body, the liquid absorbing layer 3 is arranged at the outermost side of the tubular liquid guiding body, and after the liquid absorbing layer 3 absorbs the atomized liquid to expand, the fitting degree between the liquid absorbing layer 3 and the atomized cavity or other parts inside the atomizer can be improved, which is beneficial to preventing liquid leakage.
Referring to fig. 9, 10 and 11, in some embodiments, the heating element 1 is a mesh heating element, and the inner surface of the tubular liquid guiding body forms an atomization surface 5, and the mesh heating element is embedded on the atomization surface 5. Because the net-shaped heating piece has large heating area and wide thermal field coverage range, on one hand, dry burning carbon deposition caused by too concentrated heat can be avoided, and on the other hand, the heating area of the atomized liquid can be increased, thereby being beneficial to improving the atomization effect of the atomization core and the quantity of aerosol generation. The inner surface of the tubular liquid guide means a wall surface of the hollow lumen of the tubular liquid guide, and is relative to the outer peripheral surface or the outer surface of the tubular liquid guide. It can be understood that the netlike heating element can be embedded on the inner surface of the tubular liquid guide body, the netlike heating element can also be injection molded on the inner surface of the tubular liquid guide body, and the netlike heating element can also be sintered on the inner surface of the tubular liquid guide body, so that the netlike heating element is firmly connected with the tubular liquid guide body, on one hand, the netlike heating element can be effectively prevented from falling off and separating from the tubular liquid guide body, and on the other hand, the netlike heating element and the tubular liquid guide body can be directly integrated into an atomization core body. It will be appreciated that in some embodiments, as an alternative, the mesh heating element is also a spiral heating wire, a metal heating sheet or a metal heating layer, the porous polymer liquid guiding matrix is a tubular liquid guiding body, the inner surface of the tubular liquid guiding body forms the atomizing surface 5, the spiral heating wire can be embedded on the inner surface of the tubular liquid guiding body, and the metal heating sheet or the metal heating layer can be attached on the inner surface of the tubular liquid guiding body
In some embodiments, the heating element 1 is a spiral heating wire, the inner surface of the tubular liquid guiding body forms an atomization surface 5, the spiral heating wire is embedded on the atomization surface 5, so that the atomization liquid can be efficiently transmitted to the spiral heating wire through the tubular liquid guiding body, and the atomization liquid can be atomized to form aerosol after the spiral heating wire is electrified.
Referring to fig. 5, fig. 18 and fig. 19 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31, at least one first cotton layer 31 is laminated on the second porous aerogel layer 22, and the first cotton layer 31 is a linen layer, so that the liquid absorbing layer 3 has good liquid guiding performance and temperature resistance, and can effectively prevent the liquid absorbing layer 3 from carbonizing and pasting a core, and can improve the atomization effect and the service life of the atomization core.
Referring to fig. 10, fig. 12 and fig. 15 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31 and at least one second cotton layer 32, at least one first cotton layer 31 and at least one second cotton layer 32 are stacked, the first cotton layer 31 is a linen layer, the second cotton layer 32 is a non-woven fabric layer, and the linen layer is fully utilized to have excellent temperature resistance and excellent liquid guiding performance, so that the liquid absorbing layer 3 has excellent liquid guiding performance and temperature resistance, and the liquid absorbing layer 3 is effectively prevented from being carbonized to cause a paste core, and the atomization effect and the service life of the atomization core can be improved.
Referring to fig. 7, 17 and 20 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one second cotton layer 32, where the at least one second cotton layer 32 is stacked on the second porous aerogel layer 22, and the second cotton layer 32 is a non-woven fabric layer, so that the liquid absorbing layer 3 has excellent liquid guiding performance, and the rate of transmitting the atomized liquid from the liquid absorbing layer 3 to the liquid guiding layer 2 is effectively improved, so that the atomization effect of the atomization core can be improved.
Referring to fig. 14, 16 and 18 in combination, in some embodiments, the absorbent layer 3 includes at least one first cotton layer 31 and at least one third porous aerogel layer 33, the first cotton layer 31 is sandwiched between the second porous aerogel layer 22 and the third porous aerogel layer 33, and the first cotton layer 31 may be, but is not limited to, a linen layer, so as to prevent the first cotton layer 31 from absorbing the atomized liquid and from excessively expanding.
Referring further to fig. 17 and 20 in combination, in some embodiments, the absorbent layer 3 includes at least one second cotton layer 32 and at least one third porous aerogel layer 33, the second cotton layer 32 is sandwiched between the second porous aerogel layer 22 and the third porous aerogel layer 33, and the second cotton layer 32 may be, but is not limited to, a nonwoven layer, and may prevent the first cotton layer 31 from absorbing the atomized liquid and being excessively expanded.
Referring to fig. 15 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31, at least one second cotton layer 32 and at least one third porous aerogel layer 33, the first cotton layer 31 and the second cotton layer 32 are sandwiched between the second porous aerogel layer 22 and the third porous aerogel layer 33, the first cotton layer 31 is a linen layer, and the second cotton layer 32 is a non-woven fabric layer, so that the first cotton layer 31 and the second cotton layer 32 can be prevented from absorbing atomized liquid and generating excessive expansion deformation.
Referring to fig. 18 and 19 in combination, in some embodiments, the liquid absorbent layer 3 includes at least one first cotton layer 31 and at least two third porous aerogel layers 33, where the first cotton layer 31 is sandwiched between two adjacent third porous aerogel layers 33, and the first cotton layer 31 may be, but is not limited to, a linen layer, so as to prevent the first cotton layer 31 from absorbing the atomized liquid and from excessively expanding and deforming.
Referring to fig. 17 and 20 in combination, in some embodiments, the absorbent layer 3 includes at least one second cotton layer 32 and at least two third porous aerogel layers 33, the second cotton layer 32 is sandwiched between two adjacent third porous aerogel layers 33, and the second cotton layer 32 may be, but is not limited to, a non-woven fabric layer, so as to prevent the first cotton layer 31 from absorbing the atomized liquid and being excessively expanded.
In some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31, at least one second cotton layer 32 and at least two third porous aerogel layers 33, where the first cotton layer 31 and/or the second cotton layer 32 are sandwiched between two adjacent third porous aerogel layers 33, the first cotton layer 31 is a linen layer, and the second cotton layer 32 is a non-woven fabric layer, so that the first cotton layer 31 and the second cotton layer 32 can be prevented from absorbing liquid and being excessively expanded and deformed.
In some embodiments, the first porous aerogel layer 21 and/or the second porous aerogel layer 22 are/is polyimide layers, and the polyimide layers can be adjusted in hardness, so that the hardness of the first porous aerogel layer 21 can be softened, the embedding effect of the aerogel layer and the heating element 1 and the infiltration and replenishment effect of the atomized liquid can be improved, and the risk of dry combustion can be reduced. The hardness of the second porous aerogel layer 22 is adjusted to be hard, and the second porous aerogel layer 22 is used for supporting the liquid absorbing layer 3, so that expansion deformation of the liquid absorbing layer 3 after absorbing atomized liquid is effectively prevented, and the first porous aerogel layer 21 is extruded. It should be noted that the soft aerogel layer refers to an aerogel having significant elasticity, that is, after the sample volume of the aerogel is compressed by at least 50%, the original volume can be recovered, and the aerogel is determined to be an elastic aerogel or a soft aerogel. The hard aerogel layer refers to an aerogel that does not have significant elasticity, i.e., the aerogel sample is not subject to structural collapse under a pressure of at least 0.5MPa, and is determined to be a hard aerogel or a rigid aerogel.
In some embodiments, the first porous aerogel layer 21 and/or the second porous aerogel layer 22 are provided with liquid guiding holes, so that the speed of the atomized liquid to be transmitted to the heating element 1 can be increased, the problems of insufficient fragrance release caused by insufficient liquid supply or infusion interruption of the heating element 1 and insufficient fragrance release caused by dry and light aerosol can be solved. It should be noted that, in order to ensure that the atomized liquid absorbed by the liquid absorbing layer 3 can be quickly and uniformly transferred to the heating element 1, a plurality of liquid guiding holes may be formed on the first porous aerogel layer 21 and/or the second porous aerogel layer 22, and a plurality of through holes may be disposed on the first porous aerogel layer 21 and/or the second porous aerogel layer 22 in an ordered hole arrangement manner or a disordered hole arrangement manner.
In some embodiments, the high temperature resistant range of the first porous aerogel layer 21, the second porous aerogel layer 22 and/or the third porous aerogel layer 33 is 350-500 ℃, so that the dry burning resistance of the liquid guiding layer 2 and the liquid absorbing layer 3 is enhanced, the phenomenon that the liquid guiding layer 2 and the liquid absorbing layer 3 are carbonized to cause a paste core is effectively prevented, and the atomization effect and the service life of the atomization core can be improved.
Referring to fig. 1, fig. 2, fig. 3 and fig. 21 in combination, an atomization core according to other embodiments of the present utility model includes a heating element 1, a liquid guiding layer 2 and a liquid absorbing layer 3, wherein the heating element 1 can generate heat after being electrified, and the atomized liquid is heated and atomized by the heat generated by the heating element 1. The heating element 1 may be, but is not limited to, a stainless steel heating element, a nichrome heating element, an iron-chromium-aluminum alloy heating element, or a nickel-iron alloy heating element. The liquid guide layer 2 is used for conveying atomized liquid to the heating element 1, an atomization surface 5 for releasing aerosol is arranged on the liquid guide layer 2, and the atomization surface 5 on the liquid guide layer 2 is contacted with the heating element 1. The liquid absorbing layer 3 is used for absorbing and/or storing atomized liquid, the liquid absorbing layer 3 is provided with a liquid absorbing surface 6 for absorbing the atomized liquid, and the liquid guiding layer 2 is combined on one surface of the liquid absorbing layer 3 away from the liquid absorbing layer 6, so that the atomized liquid absorbed and/or stored by the liquid absorbing layer 3 can be transmitted to the liquid guiding layer 2 through the liquid absorbing layer 3. The liquid conducting layer 2 is a first porous aerogel layer 21 with temperature resistance, the first porous aerogel layer 21 is arranged between the heating body 1 and the liquid absorbing layer 3 in a separated mode, and the first porous aerogel layer 21 has better dry burning resistance due to the fact that the high temperature resistant range of the first porous aerogel layer 21 is 350-500 ℃, and the first porous aerogel layer 21 is excellent in heat insulation performance, so that the dry burning resistance of the liquid conducting layer 2 and the liquid absorbing layer 3 is enhanced, and the phenomenon that the liquid conducting layer 2 and the liquid absorbing layer 3 are carbonized to cause a paste core is effectively prevented. It should be noted that the first porous aerogel layer 21 may be, but is not limited to, a porous aerogel film. In addition, the first porous aerogel layer 21 is in direct contact with the heating body 1 through the atomizing surface 5, and the first porous aerogel layer 21 is excellent in heat insulation performance, so that heat generated by the heating body 1 is not easy to dissipate, the heat generated by the heating body 1 is more sufficient and concentrated to heat and atomize atomized liquid, the heat utilization rate is improved, and the energy consumption is reduced.
Compared with the prior art, the atomization core provided by the embodiment of the utility model adopts the first porous aerogel layer 21 with temperature resistance as the liquid guide layer 2, and the liquid guide layer 2 is arranged between the heating element 1 and the liquid absorption layer 3 in a separated manner, so that the dry burning resistance of the liquid guide layer 2 and the liquid absorption layer 3 is enhanced, the core pasting caused by carbonization of the liquid guide layer 2 and the liquid absorption layer 3 is effectively prevented, and the atomization effect and the service life of the atomization core can be improved. In addition, through liquid-guiding layer 2 and heat-generating body 1 direct contact, utilize the excellent thermal-insulated heat preservation performance of first porous aerogel layer 21 for the heat that heat-generating body 1 produced is difficult for losing, makes the heat that heat-generating body 1 produced more abundant and concentrate heat atomizing to the atomized liquid, is favorable to improving heat utilization ratio, reduces the energy consumption.
Referring to fig. 32 in combination, in some embodiments, the liquid absorbing layer 3 includes at least two first cotton layers 31, where the at least two first cotton layers 31 are stacked to form the liquid absorbing layer 3, and the first cotton layers 31 are linen layers, so that the liquid absorbing layer 3 has good liquid guiding performance and temperature resistance, and can effectively prevent the liquid absorbing layer 3 from carbonizing to cause a paste core, and improve the atomization effect and the service life of the atomization core.
Referring to fig. 22, 27 and 28, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31 and at least one third porous aerogel layer 33, at least one first cotton layer 31 and at least one third porous aerogel layer 33 are stacked to form the liquid absorbing layer 3, and the first cotton layer 31 is a linen layer, so that the liquid absorbing layer 3 has good liquid guiding performance and heat resistance, and can effectively prevent the liquid absorbing layer 3 from carbonizing to cause a sticking core, and can improve the atomization effect and the service life of the atomization core.
Referring to fig. 28, 29 and 30, in some embodiments, the liquid absorbing layer 3 includes at least two third porous aerogel layers 33, and the at least two third porous aerogel layers 33 are stacked to form the liquid absorbing layer 3, so that the liquid absorbing layer 3 has excellent temperature resistance, and can effectively prevent the liquid absorbing layer 3 from carbonizing to cause a paste core, thereby improving the atomization effect and the service life of the atomization core.
Referring to fig. 21, 24 and 25, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31 and at least one second cotton layer 32, where the at least one first cotton layer 31 and the at least one second cotton layer 32 are stacked to form the liquid absorbing layer 3, the first cotton layer 31 is a linen layer, and the second cotton layer 32 is a non-woven fabric layer, and the linen layer is fully utilized to have excellent temperature resistance and the non-woven fabric layer has excellent liquid guiding performance, so that the liquid absorbing layer 3 has excellent liquid guiding performance and temperature resistance, and effectively prevents the liquid absorbing layer 3 from carbonization to cause a paste core, and can improve atomization effect and service life of the atomized core.
Referring to fig. 29 in combination, in some embodiments, the liquid absorbing layer 3 includes at least two second cotton layers 32, at least two second cotton layers 32 are stacked to form the liquid absorbing layer 3, and the second cotton layers 32 are non-woven fabric layers, so that the liquid absorbing layer 3 has excellent liquid guiding performance, the speed of transmitting atomized liquid from the liquid absorbing layer 3 to the liquid guiding layer 2 is effectively improved, and the atomization effect of the atomization core can be improved.
Referring to fig. 29, 31 and 32 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one second cotton layer 32 and at least one third porous aerogel layer 33, at least one second cotton layer 32 and at least one third porous aerogel layer 33 are stacked to form the liquid absorbing layer 3, and the second cotton layer 32 is a non-woven fabric layer, so that the liquid absorbing layer 3 has excellent liquid guiding performance and temperature resistance, and on the premise of ensuring that the liquid absorbing layer 3 has good liquid guiding rate, the dry burning resistance of the liquid absorbing layer 3 is improved, and the atomization effect and service life of the atomization core can be improved.
Referring to fig. 21, 25 and 26 in combination, in some embodiments, the liquid absorbing layer 3 includes at least one first cotton layer 31, at least one third porous aerogel layer 33 and at least one second cotton layer 32, where the at least one first cotton layer 31, the at least one third porous aerogel layer 33 and the at least one second cotton layer 32 are stacked to form the liquid absorbing layer 3, the first cotton layer 31 is a linen layer, the second cotton layer 32 is a non-woven fabric layer, and the third porous aerogel layer 33 may be but is not limited to a polyimide layer, so that the liquid absorbing layer 3 has both excellent liquid guiding performance and temperature resistance, and on the premise of ensuring that the liquid absorbing layer 3 has good liquid guiding rate, the dry burning resistance of the liquid absorbing layer 3 is improved, and the atomization effect and the service life of the atomizing core can be improved.
In some of these embodiments, the first porous-aerogel layer 21, the second porous-aerogel layer 22, and/or the third porous-aerogel layer 33 can be, but are not limited to, polyimide layers. Since the polyimide layer has a fiber-plane island 3D structure, fiber fluctuation and falling off can be prevented. After the polyimide layer adsorbs the atomized liquid, the influence of fiber drop is less, has overcome the liquid-absorbing cotton and has been got into human risk in atomized liquid and then because of the fiber dispersion that the weaving technology caused, can improve the stability of atomizing core atomizing work simultaneously. In addition, the polyimide layer has small expansion effect (1-3%) after adsorbing the atomized liquid, and reduces extrusion to the heating body 1, so that extrusion damage to the section of the atomized channel 4 is reduced, and further, unstable air flow caused by volume swelling of the liquid guide layer 2 is reduced, and the smoothness of sucking air flow can be improved. The pore diameter of micropores in the nano porous structure inside the polyimide layer can be regulated and controlled between 0.1 and 100 mu m. For example, when the pore diameter of the micropores in the nano porous structure is 0.1-50 nm, the polyimide layer has good liquid locking performance and can prevent liquid leakage; and when the pore diameter of the micropores in the nano porous structure is 50 nm-100 mu m, the polyimide layer has good liquid guide performance. In addition, the pore diameter of micropores in the nano porous structure inside the polyimide layer can be regulated and controlled between 0.1 and 100 mu m, and the regulation and control on the fineness and the taste of aerosol are easy to realize. Specifically, the first porous aerogel layer 21 formed by polyimide layers is easy to realize surface functional group modification, expands the range and space of surface polarity regulation and control, and the pore-forming agent addition amount can realize pore diameter regulation and control, so as to control the porosity, extend the regulation and control dimensions of two layers of physical and chemical layers of the aerogel layer, and realize the regulation of liquid guide rate and liquid storage amount. The first porous aerogel layer 21 is adjustable in hardness, and the soft aerogel layer can improve the embedding effect of the aerogel layer and the heating body 1 and the infiltration and the replenishment effect of the atomized liquid, so that the risk of dry combustion is reduced. It should be noted that the soft aerogel layer refers to an aerogel having significant elasticity, that is, after the sample volume of the aerogel is compressed by at least 50%, the original volume can be recovered, and the aerogel is determined to be an elastic aerogel or a soft aerogel. The hard aerogel layer refers to an aerogel that does not have significant elasticity, i.e., the aerogel sample is not subject to structural collapse under a pressure of at least 0.5MPa, and is determined to be a hard aerogel or a rigid aerogel. Because the first porous aerogel layer 21 is adjustable in hardness, the soft-adjusting aerogel layer can improve the fitting degree with structural parts in the atomizer and prevent liquid leakage. The functional groups on the surface of the first porous aerogel layer 21 can be designed and adjusted to realize metal ion adsorption, reduce the release amount of heavy metals in aerosol, improve chemical safety and product stability, and simultaneously the first porous aerogel layer 21 can be recycled.
In some embodiments, the first porous aerogel layer 21 is provided with a liquid guiding hole for transporting the atomized liquid, so that the speed of transporting the atomized liquid to the heating element 1 can be increased, the problems that the heating element 1 is dry-burned due to insufficient liquid supply or infusion interruption and the fragrance release is insufficient due to the fact that the aerosol is dry and light can be improved. It should be noted that, in order to ensure that the atomized liquid absorbed by the liquid absorbing layer 3 can be quickly and uniformly transferred to the heating element 1, a plurality of liquid guiding holes may be formed on the first porous aerogel layer 21, and a plurality of through holes may be disposed on the first porous aerogel layer 21 in an ordered hole arrangement manner or a disordered hole arrangement manner.
Referring to fig. 1, 2 and 21, in some embodiments, the first porous aerogel layer 21 is wound into a tubular liquid guide, the liquid absorbing layer 3 is a tubular liquid absorbing layer 3 sleeved outside the tubular liquid guide, an atomization channel 4 is formed inside the tubular liquid guide, and the heating element 1 is arranged in the atomization channel 4. By adopting the scheme, as the expansion effect of the first porous aerogel layer 21 after adsorbing the atomized liquid is smaller (1-3%), the expansion effect of the liquid absorbing cotton after adsorbing the atomized liquid is 5-10%, the extrusion of the heating body 1 can be reduced, and the extrusion damage to the atomizing channel 4 is reduced. In addition, the compressive strength of the first porous aerogel layer 21 is greater than that of the liquid absorbing layer 3, so that the tubular liquid guide body can be used for supporting the tubular liquid absorbing layer 3, and excessive expansion of the liquid absorbing layer 3 after absorbing atomized liquid is effectively prevented.
In some of these embodiments, the first porous aerogel layer 21 has a grammage of 50 to 60g/m 2 The liquid-guiding performance and the temperature resistance are excellent, and on the premise of ensuring that the liquid-absorbing layer 3 has good liquid-guiding rate, the dry burning resistance of the liquid-absorbing layer 3 is improved, and the atomization effect and the service life of the atomization core can be improved.
In order to further explain that the atomizing core provided by the embodiment of the utility model has excellent performances such as excellent high temperature resistance, good dry combustion resistance, small impact on extrusion of the atomizing channel 4 and the like compared with the atomizing core in the prior art, the atomizing core provided by the embodiment of the utility model is respectively tested for temperature resistance, permeation rate, paste core carbonization, taste attenuation, stability of aerosol quantity (TPM) generation, air flow stability, service life and the like compared with the atomizing core in the prior art, and the related tests are as follows:
specifically, a 75g/m2 linen cotton layer was cut into a 7mm X40 mm gauge first cotton layer 31, denoted as L, a 60g/m2 nonwoven cotton layer was cut into a 7mm X40 mm gauge second cotton layer 32, denoted as V, a 50g/m2 polyimide layer was cut into a 7mm X40 mm gauge porous aerogel layer, denoted as P, a heater 1 was denoted as X, atomized core samples in XLV, XLLV, XLLVV, XLLVVV, XLLVVVV combination mode were the most comparative examples 1 to 5, and heater 1 in comparative examples 1 to 5 were in contact with the first cotton layer 31. And, with the atomizing core samples in XPV, XPLV, XPLVV, XPLVVV, XPLVVVV combination mode as examples 1 to 5, the atomizing core samples in comparative examples 1 to 5 and the atomizing core samples in examples 1 to 5 were subjected to the relevant item test, respectively, and at least 10 of the atomizing core samples in comparative examples 1 to 5 and examples 1 to 5 were taken, respectively, and the relevant data of the test were averaged.
The atomized core samples in examples 1 to 5 and comparative examples 1 to 5 described above were subjected to respective tests for relevant items such as resistance to temperature, permeation rate, and the like. The test results are shown in Table 1 below.
Table 1 table of atomized core sample correlation performance tests in examples 1 to 5 and comparative examples 1 to 5
As can be seen from the data analysis in table 1, the first porous aerogel layer 21 (polyimide layer) with temperature resistance is used as the liquid guiding layer 2, and the liquid guiding layer 2 is arranged between the heating element 1 and the liquid absorbing layer 3 in a spaced manner, so that the permeation rate of the atomizing core is not greatly influenced, but the temperature resistance (temperature resistance) of the atomizing core can be remarkably improved, the dry burning resistance of the liquid guiding layer 2 and the liquid absorbing layer 3 is enhanced, the paste core caused by carbonization of the liquid guiding layer 2 and the liquid absorbing layer 3 is effectively prevented, and the atomizing effect and the service life of the atomizing core can be improved.
The atomization core sample in the XLLVV combination mode was used as comparative example 6, the atomization core sample in the XPVVV, XPLVV, XPPVV, XPVPV, XPLPV, XPLPL combination mode was used as examples 6 to 11, and the atomization core sample in comparative example 6 and the atomization core sample in examples 6 to 11 were subjected to the relevant items such as TPM (amount of aerosol generation), TPM stability, aerosol particle diameter fineness, number of suction ports (lifetime), aerosol suction taste, deformation condition of the atomization passage 4, presence or absence of fiber flock, suction air pressure, and suction air pressure stability, respectively, and the relevant test results were as shown in table 2 below.
Specifically, the core sample of comparative example 6 and the core samples of examples 6 to 11 were respectively selected, charged into an E367-M atomizer, connected to a smoke extractor, and subjected to TPM test suction to 480 ports at a sampling interval of 20 ports, and suction parameters including a suction rate of 18.3mL/s and a suction interval of 3 seconds to 27 seconds. TPM value represents the atomized aerosol quantity, particle size represents the fineness of aerosol, and standard deviation represents the stability of atomization performance of each opening.
Respectively selecting an atomization core sample in a comparative example 6 and atomization core samples in examples 6 to 11, loading the atomization core samples into an E367-M atomizer, respectively taking 10 atomization core samples in the comparative example 6 and examples 6 to 11, injecting an atomization liquid, standing for 24 hours, testing the initial size of an atomization channel 4 by a 2.5-time tester, and observing and calculating the number of fiber flocks in the atomization channel 4; then, respectively carrying out suction test on the atomizer for 100 times by using a TPM tester, recording the suction air pressure data of the atomizer, and calculating a flat value and a standard deviation of the flat value; after 100 times of suction, the size of the atomizing channel 4 is tested again by a 2.5-time element tester, the front-back variation amplitude is calculated, and if the deformation of the atomizing channel 4 exceeds 10%, the atomizing channel 4 is judged to be deformed.
Table 2 table of atomized core sample correlation properties in examples 6 to 11 and comparative example 6
As can be seen from the data analysis in table 2, as the number of polyimide layers (PI) increases, the deformation resistance of the atomizing channel 4 of the atomizing core is stronger, the suction air pressure is smaller, the consistency of the suction air pressure is better, and the suction air flow of the atomizer is smoother. With the increase of the number of polyimide layers (PI), the stability of the TPM value is increased, the stability of the particle size of the aerosol is enhanced, and the taste of the sucked aerosol is improved, so that the consistency of the sucked taste is better. In addition, as the number of polyimide layers (PI) increases, exposure of the fiber batt to the nebulizing channel 4 can be reduced. The polyimide layer (PI) in direct contact with the heat generating member 1 may constitute the first porous aerogel layer 21 in the above embodiment, and the polyimide layer (PI) not in direct contact with the heat generating member 1 may constitute the second porous aerogel layer 22 or the third porous aerogel layer 33 in the above embodiment.
The embodiment of the utility model also provides an atomizer, which comprises the atomizing core provided by any embodiment. The atomizer has the same technical effects as the atomization core because the atomizer has all the technical characteristics of the atomization core provided by any one of the embodiments.
The embodiment of the utility model also provides an aerosol generating device, which comprises the atomizing core provided by any embodiment or the atomizer provided by any embodiment. The aerosol generating device has the same technical effects as the atomizing core because the aerosol generating device has all the technical characteristics of the atomizing core or the atomizer provided by any one of the embodiments.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An atomizing core, comprising:
the heating body is used for heating and atomizing the atomized liquid to form aerosol;
a liquid guiding layer for transmitting the atomized liquid to the heating element; and
the liquid absorbing layer is used for absorbing and/or storing atomized liquid, and a liquid absorbing surface is arranged on the liquid absorbing layer;
the liquid guide layer comprises a first porous aerogel layer and a second porous aerogel layer which are arranged in a stacked mode, an atomization surface which is in contact with the heating body is arranged on one surface of the first porous aerogel layer, which is away from the second porous aerogel layer, one surface of the second porous aerogel layer, which is away from the first porous aerogel layer, is connected with one surface of the liquid absorption layer, which is away from the liquid absorption surface, and the hardness of the second porous aerogel layer is greater than that of the first porous aerogel layer.
2. The atomizing core of claim 1, wherein the liquid transfer layer is wound into a tubular liquid transfer body, an atomizing passage is formed inside the tubular liquid transfer body, and the heating element is disposed in the atomizing passage.
3. The atomizing core of claim 2, wherein the liquid absorbent layer is a cotton sleeve layer sleeved outside the tubular liquid guide body.
4. The atomizing core of claim 2, wherein the heating element is a mesh heating element or a spiral heating wire, the inner surface of the tubular liquid guide body forms an atomizing surface, and the mesh heating element or the spiral heating wire is embedded on the atomizing surface.
5. The atomizing core of claim 1, wherein the liquid absorbent layer comprises at least one first cotton layer, the at least one first cotton layer being disposed layer upon layer on the second porous aerogel layer;
or the liquid absorption layer comprises at least one first cotton layer and at least one second cotton layer, and at least one first cotton layer and at least one second cotton layer are arranged in a layer-by-layer manner;
or, the liquid absorbing layer comprises at least one second cotton layer, and at least one second cotton layer is arranged on the second porous aerogel layer in a layer-by-layer manner;
or, the liquid absorbing layer comprises at least one first cotton layer and at least one third porous aerogel layer, and the first cotton layer is sandwiched between the second porous aerogel layer and the third porous aerogel layer;
or, the liquid absorbing layer comprises at least one second cotton layer and at least one third porous aerogel layer, and the second cotton layer is sandwiched between the second porous aerogel layer and the third porous aerogel layer;
or, the liquid absorbing layer comprises at least one first cotton layer, at least one second cotton layer and at least one third porous aerogel layer, and the first cotton layer and the second cotton layer are clamped between the second porous aerogel layer and the third porous aerogel layer;
or the liquid absorbing layer comprises at least one first cotton layer and at least two third porous aerogel layers, and the first cotton layer is clamped between two adjacent third porous aerogel layers;
or the liquid absorbing layer comprises at least one second cotton layer and at least two third porous aerogel layers, and the second cotton layer is clamped between two adjacent third porous aerogel layers;
or the liquid absorption layer comprises at least one first cotton layer, at least one second cotton layer and at least two third porous aerogel layers, and the first cotton layer and/or the second cotton layer are/is clamped between two adjacent third porous aerogel layers.
6. The atomizing core of claim 1, wherein the first porous aerogel layer and/or the second porous aerogel layer is a polyimide layer.
7. The atomizing core of claim 1, wherein the first porous aerogel layer and/or the second porous aerogel layer are provided with liquid-guiding holes.
8. The atomizing core of any of claims 1 to 7, wherein the first porous aerogel layer and/or the second porous aerogel layer has a high temperature resistance in the range of 350 to 500 ℃.
9. An atomizer comprising an atomizing core as claimed in any one of claims 1 to 8.
10. An aerosol generating device comprising an atomizing core according to any one of claims 1 to 8 or an atomizer according to claim 9.
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