CN215992757U - Atomizing core, atomizer and aerosol generating device - Google Patents
Atomizing core, atomizer and aerosol generating device Download PDFInfo
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- CN215992757U CN215992757U CN202122292955.7U CN202122292955U CN215992757U CN 215992757 U CN215992757 U CN 215992757U CN 202122292955 U CN202122292955 U CN 202122292955U CN 215992757 U CN215992757 U CN 215992757U
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Abstract
The utility model provides an atomizing core, atomizer and aerosol generating device forms the atomizing face through at least partial surface at porous base member to set up the piece that generates heat at porous base member's surface, generate heat and combine in porous base member's surface through the mounting again. Because the at least part of mounting inlays to establish and is fixed in inside the porous base member, can make the piece that generates heat closely and combine in the surface of porous base member firmly, reinforcing atomizing core overall structure's stability for the condition that the piece that generates heat can not appear droing. Like this, will generate heat the piece through the mounting and combine in porous base member's surface, do not receive the less restriction of the hole size of cylindrical hollow pottery, the area of arranging of the piece that generates heat can be according to porous base member's surface area size and evenly set up, can make atomizing core during operation have that the rate of rise is fast, the even and big good performance of area of generating heat of temperature distribution.
Description
Technical Field
The utility model belongs to the technical field of atomizing core processing and simulation smoking, in particular, relate to an atomizing core, atomizer and aerosol generating device.
Background
At present, the ceramic atomizing core used by the aerosol generating device is generally provided with a heating wire on the inner hole wall of the columnar hollow ceramic. Because the inner hole of the hollow ceramic is limited by small size, an extremely fine heating wire is usually required to be used as a heating element, and the problems of slow heating rate, uneven temperature distribution, small heating area and the like exist, so that the amount of smoke generated by heating and atomizing the ceramic atomizing core is insufficient. Moreover, the ceramic atomizing core has poor structural stability, and the heating wire is easy to fall off from the inner hole wall of the hollow ceramic, so that the service life of the ceramic atomizing core is influenced.
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 a will generate heat a firm atomizing core that combines in porous base member surface through the mounting, strengthen atomizing core overall structure's stability for it is difficult for droing to generate heat a, and atomizing core during operation intensification rate is fast, temperature distribution is even and the area that generates heat is big.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an atomizing core for an atomizer, the atomizing core comprising:
a porous substrate, at least part of the outer surface of which forms an atomization surface for heating and atomizing an aerosol-forming substrate, the porous substrate having therein a microporous structure for adsorbing and storing the aerosol-forming substrate, the microporous structure being capable of transporting the aerosol-forming substrate to the atomization surface;
a heating element disposed on an outer surface of the porous substrate for heating and atomizing the aerosol-forming substrate delivered to the atomizing surface; and
the fixing piece is used for fixing the heating piece on the outer surface of the porous base body, at least part of the fixing piece is embedded and fixed in the porous base body, and at least part of the fixing piece is fixedly connected with the heating piece.
Furthermore, the outline of porous base member is the column setting, porous base member has first end and second end along its axial, the terminal surface of first end forms the atomizing face, generate heat the piece and locate on the atomizing face.
Further, the piece that generates heat is including locating the annular piece that generates heat that central point put, by a plurality of first arcs generate heat the first heating structure that the piece was arranged with concentric circular arcs to and generate heat the second heating structure that the piece was arranged with concentric circular arcs by a plurality of second arcs, just first heating structure with the second heating structure with the ring center that the annular piece that generates heat is central symmetry as the center of symmetry, first heating structure with the second heating structure respectively with annular piece electrical property that generates heat links to each other.
Furthermore, the first heating structure comprises a plurality of first arc-shaped heating sheets, a first connecting sheet for electrically connecting two adjacent first arc-shaped heating sheets, and a second connecting sheet for electrically connecting the first arc-shaped heating sheet positioned at the innermost side of the first heating structure with the annular heating sheet; the second heating structure comprises a plurality of second arc-shaped heating pieces, a third connecting piece and a fourth connecting piece, wherein the adjacent two second arc-shaped heating pieces are electrically connected with each other, and the second arc-shaped heating piece which is positioned at the innermost side of the second heating structure is electrically connected with the annular heating piece.
Furthermore, the first heating structure comprises a plurality of first arc-shaped heating sheets which are arranged in a concentric circular arc shape, and a first lead which is electrically connected with the first arc-shaped heating sheet positioned at the outermost side of the first heating structure; the second heating structure comprises a plurality of second arc-shaped heating sheets which are arranged in a concentric circular arc manner, and a second lead which is electrically connected with the second arc-shaped heating sheets positioned on the outermost side of the second heating structure.
Furthermore, the fixing part comprises a fixing section and a connecting section, wherein the fixing section is used for being embedded and fixed in the porous base body, the connecting section is used for connecting the heating part with the fixing section, and the extending direction of the fixing section and the extending direction of the connecting section form an angle with each other so as to form a grapple-shaped structure embedded in the porous base body.
Further, the number of the fixing pieces is set to be a plurality, and the plurality of the fixing pieces are arranged in an annular array.
Furthermore, the outline of the porous substrate is columnar, a vent hole is arranged on the porous substrate in a penetrating manner along the axial direction of the porous substrate, a liquid storage tank is concavely arranged on the end face of the second end of the porous substrate, and aerosol-forming substrates in the liquid storage tank can be transmitted to the atomizing surface through the microporous structure.
Based on the above-mentioned problem that exists among the prior art, the utility model discloses a second aim at of embodiment provides an atomizer that has atomizing core in any one of above-mentioned scheme.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an atomizer, including atomizing core and inside atomizing casing that is equipped with atomizing chamber and stock solution chamber, the atomizing core is in above-mentioned arbitrary scheme the atomizing core, the atomizing core at least part accept in the atomizing chamber, the atomizing face is located the outside in stock solution chamber.
Based on the above problems in the prior art, it is a third object of the embodiments of the present invention to provide an aerosol generating device having an atomizing core or an atomizer in any of the above solutions.
In order to achieve the purpose, the utility model adopts the technical proposal that: providing an aerosol generating device comprising the atomizing cartridge or the atomizer of 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 atomizing core, atomizer and aerosol generating device, atomizing core forms the atomizing face through at least partial surface at porous base member to set up the piece that generates heat at porous base member's surface, generate heat and combine in porous base member's surface through the mounting again. Because the at least part of mounting inlays establishes and is fixed in inside the porous base member, and mounting and porous ceramic unburned bricks inlay the combination through high temperature sintering technology, can make the piece that generates heat closely and firmly combine in the surface of porous base member, reinforcing atomizing core overall structure's stability for the condition that the piece that generates heat can not appear droing. Like this, will generate heat the piece through the mounting and combine in porous base's surface, do not receive the less restriction of the hole size of cylindrical hollow pottery, need not to adopt superfine heater as the piece that generates heat to the area of arranging of the piece that generates heat can be according to porous base's surface area size and evenly set up, can be so that atomizing core during operation has the rate of rise fast, the even and big good performance of area that generates heat of temperature distribution.
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 bottom view of an atomizing core according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic perspective view of a heat generating member according to an embodiment of the present invention;
fig. 5 is an exploded view of an atomizing core provided in an embodiment of the present invention;
FIG. 6 is a schematic bottom view of a porous substrate according to an embodiment of the present invention;
figure 7 is a thermal image analysis of an atomizing core prepared by processing in example 1 of the present invention;
FIG. 8 is a graph showing the temperature rise rate of atomization of the atomization core processed and prepared in example 1 of the present invention;
fig. 9 is another graph of the temperature rise rate of atomization temperature of the atomization core processed and prepared in example 1 of the present invention;
fig. 10 is a thermal image analysis of an atomizing core prepared by processing in example 2 of the present invention;
fig. 11 is a temperature rise rate curve of the atomization temperature of the atomization core processed and prepared in example 2 of the present invention;
fig. 12 is another graph of the temperature rise rate of atomization temperature of the atomization core processed and prepared in example 2 of the present invention;
figure 13 is a thermal image analysis of an atomizing core prepared by processing in example 3 of the present invention;
fig. 14 is a graph of the temperature rise rate of the atomization temperature of the atomization core processed and prepared in example 3 of the present invention;
fig. 15 is another graph of the temperature rise rate of atomization temperature of the atomization core processed and prepared in example 3 of the present invention;
fig. 16 is a thermal image analysis of an atomizing core prepared by processing in a comparative example of the present invention;
FIG. 17 is a graph showing the temperature rise rate of atomization of the atomization core processed and prepared in the comparative example of the present invention;
fig. 18 is another graph of the temperature rise rate of atomization of the atomization core processed and prepared in the comparative example of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a porous matrix; 11-an atomizing surface; 12-a first end; 13-a second end; 14-a liquid storage tank; 15-a vent hole; 16-a groove;
2-a heat generating member; 21-annular heating sheet; 22-a first heating structure; 221-a first arc-shaped heating sheet; 222-a first connecting piece; 223-a second connecting sheet; 224-a first lead; 225-a first electrode sheet; 23-a second heat-generating structure; 231-a second arc-shaped heating sheet; 232-third connecting piece; 233-a fourth connecting sheet; 234 — a second lead; 235-a second electrode sheet;
3-a fixing piece; 31-a fixed segment; 32-connecting segment.
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.
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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled 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 applicable to aerosol generating device's atomizer. Referring to fig. 1 and fig. 2, an atomizing core provided in an embodiment of the present invention includes a porous base 1, a heat generating member 2 and a fixing member 3, wherein at least a portion of an outer surface of the porous base 1 forms an atomizing surface 11, a microporous structure for adsorbing and storing an aerosol-forming substrate is disposed inside the porous base 1, and the microporous structure can transmit the aerosol-forming substrate stored inside the porous base 1 to the atomizing surface 11. Referring to fig. 1 and fig. 2, the heat generating member 2 is disposed on the outer surface of the porous substrate 1, and the heat generating member 2 may be, but is not limited to, a heat generating sheet or a heat generating net disposed on the outer surface of the porous substrate 1. In some embodiments, the heat generating member 2 is a heat generating sheet arranged in a membrane shape, and the thickness of the heat generating sheet is 0.1 mm to 0.16 mm, so that the heat generating member 2 has a suitable resistance value on one hand, and the heat generating member 2 is favorably combined on the outer surface of the porous base body 1 on the other hand. When the atomizer is used, the porous base body 1 can adsorb and store aerosol-forming substrates in a liquid storage cavity of the atomizer in the porous base body 1 through the microporous structure, the aerosol-forming substrates stored in the porous base body 1 are transmitted to the atomizing surface 11 through the microporous structure, and the heat generated after the heating part 2 is electrified can heat and atomize the aerosol-forming substrates transmitted to the atomizing surface 11 to form aerosol due to the fact that the heating part 2 is arranged on the outer surface of the porous base body 1, and the aerosol flows out of the air outlet of the atomizer to be sucked by a user. And, the mounting 3 is at least partly set in and is fixed in porous base 1, and the mounting 3 is at least partly fixed continuous with the piece 2 that generates heat. Like this, generate heat 2 alright be fixed in porous base member 1's surface through mounting 3, because mounting 3 at least part inlay establish and be fixed in porous base member 1 inside, and mounting 3 inlays the combination through high temperature sintering technology with porous ceramic unburned bricks, can make to generate heat 2 closely and firmly combine in porous base member 1's surface, reinforcing atomizing core overall structure's stability for the condition that drops can not appear in the piece 2 that generates heat.
The embodiment of the utility model provides an atomizing core compares with prior art, forms atomizing face 11 through at least partial surface at porous base member 1 to set up at porous base member 1's surface and generate heat piece 2, generate heat 2 rethread mounting 3 and combine in porous base member 1's surface. Because the at least part of mounting 3 inlays to be established and is fixed in inside porous base member 1, and mounting 3 inlays the combination through high temperature sintering technology with porous ceramic unburned bricks, can make the piece 2 that generates heat closely and combine in the surface of porous base member 1 firmly, reinforcing atomizing core overall structure's stability for the condition that the piece 2 that generates heat can not appear droing. Like this, combine heating element 2 in porous base member 1's surface through mounting 3, do not receive the less restriction of the hole size of cylindrical hollow pottery, need not to adopt superfine heater as heating element 2 to heating element 2's layout area can be according to porous base member 1's surface area size and evenly set up, can be so that atomizing core during operation has that rate of rise is fast, the even and big fine performance of heating area of temperature distribution.
It will be understood that reference to a microporous structure in the embodiments of the present invention refers to an internally connected pore structure formed within the porous matrix 1 having a porosity and pore size that allows for the adsorption and storage of an aerosol-forming substrate and the transport of the adsorbed and stored aerosol-forming substrate to the atomising surface 11. In some embodiments, the microporous structure may be, but is not limited to, a pore structure with a pore diameter of 20 μm to 100 μm and a porosity of 30% to 60%, so that the porous substrate 1 is excellent in both the liquid-locking capacity and the liquid-guiding capacity, and can achieve rapid liquid guiding and locking.
In some embodiments, the porous substrate includes, but is not limited to, a porous ceramic substrate, a porous glass substrate, a porous silicon substrate, and the like.
Referring to fig. 1 and 5, in some embodiments, the porous substrate 1 has a cylindrical shape, the porous substrate 1 has a first end 12 and a second end 13 along the axial direction, an end surface of the first end 12 forms an atomizing surface 11, and the heat generating element 2 is disposed on the atomizing surface 11. By adopting the above scheme, the atomization surface 11 is arranged on the end surface of the first end 12 of the columnar porous substrate 1, the area of the atomization surface 11 can be smaller than that of the end surface of the first end 12, and the area of the atomization surface 11 can also be larger than that of the end surface of the first end 12. And, will generate heat piece 2 and set up on atomizing face 11, when the aerosol formation substrate that stores in porous base member 1 passes through microporous structure and transmits to atomizing face 11, can make aerosol formation substrate on atomizing face 11 heat up fast, the thermally equivalent and increase the volume that the aerosol produced, promote user's taste.
It can be understood that, in some embodiments, the atomizing surface 11 is concavely provided with a groove 16 for accommodating and positioning the heat generating element 2, the shape and size of the groove 16 are matched with those of the heat generating element 2, and the heat generating element 2 is at least partially embedded in the groove 16. Through adopting above-mentioned scheme, the concave recess 16 that is equipped with on atomizing face 11, will generate heat 2 and at least partially inlay and locate in recess 16, can play the effect that the piece 2 was generated in the location on the one hand, on the other hand can further strengthen generating heat 2 and combine the steadiness on porous base member 1.
Referring to fig. 2 and 4, in some embodiments, the heat generating member 2 includes a ring-shaped heat generating sheet 21 disposed at a central position, a first heat generating structure 22 formed by a plurality of first arc-shaped heat generating sheets 221 arranged in a concentric circular arc, and a second heat generating structure 23 formed by a plurality of second arc-shaped heat generating sheets 231 arranged in a concentric circular arc, the first heat generating structure 22 and the second heat generating structure 23 are centrosymmetric with respect to a center of the ring-shaped heat generating sheet 21, and the first heat generating structure 22 and the second heat generating structure 23 are electrically connected to the ring-shaped heat generating sheet 21 respectively. Through adopting the above-mentioned structure setting, it includes annular heating piece 21 to generate heat 2, first heating structure 22 and second heating structure 23, and first heating structure 22 and second heating structure 23 use the ring center that annular heating piece 21 is centrosymmetric as the center of symmetry, first heating structure 22 is concentric circular-arc to arrange by a plurality of second arc heating pieces 231 and constitutes, second heating structure 23 is concentric circular-arc by a plurality of second arc heating pieces 231 and arranges and constitutes, can make heating piece 2 arrange evenly on atomizing face 11 like this, can make atomizing core during operation have that the rate of rise of temperature is fast, the even and big performance of heat area that generates heat of temperature distribution.
Referring to fig. 2 and 4, in some embodiments, the first heat generating structure 22 includes a plurality of first arc-shaped heat generating sheets 221, a first connecting sheet 222 electrically connecting two adjacent first arc-shaped heat generating sheets 221, and a second connecting sheet 223 electrically connecting the first arc-shaped heat generating sheet 221 located at the innermost side of the first heat generating structure 22 and the annular heat generating sheet 21; the second heat-generating structure 23 includes a plurality of second arc-shaped heat-generating pieces 231, a third connecting piece 232 electrically connecting two adjacent second arc-shaped heat-generating pieces 231, and a fourth connecting piece 233 electrically connecting the second arc-shaped heat-generating piece 231 located at the innermost side of the second heat-generating structure 23 and the annular heat-generating piece 21. Through adopting above-mentioned structure setting, two adjacent first arcs generate heat piece 221 interval setting, and two adjacent second arcs generate heat piece 231 interval setting, can be so that atomizing core during operation has that the rate of rise is fast, the even and big good performance of area that generates heat of temperature distribution.
Referring to fig. 2 and 4, in some embodiments, the first heating structure 22 includes a plurality of first arc-shaped heating sheets 221 arranged in a concentric circular arc, and a first lead 224 electrically connected to the first arc-shaped heating sheet 221 located at the outermost side of the first heating structure 22; the second heat-generating structure 23 includes a plurality of second arc-shaped heat-generating sheets 231 arranged in a concentric circular arc, and a second lead 234 electrically connected to the second arc-shaped heat-generating sheet 231 located at the outermost side of the second heat-generating structure 23. By adopting the above structure, the heating element 2 is electrically connected to the positive electrode and the negative electrode of the power supply device (not shown) through the first lead 224 and the second lead 234, so as to facilitate the electrical connection between the atomizing core and the power supply device, and the heating element 2 of the atomizing core driven by the power supply device heats the atomized aerosol to form the substrate.
Referring to fig. 2 and 4, in some embodiments, the heat generating element 2 further includes a first electrode tab 225 electrically connected to the first arc-shaped heat generating sheet 221 located at the outermost side of the first heat generating structure 22, and a second electrode tab 235 electrically connected to the second arc-shaped heat generating sheet 231 located at the outermost side of the second heat generating structure 23, wherein one end of the first lead 224 is electrically welded to the first electrode tab 225, and one end of the second lead 234 is electrically welded to the second electrode tab 235. Through adopting above-mentioned structure setting, set up first electrode piece 225 and second electrode piece 235 on heating element 2 respectively, make things convenient for the welding of first lead 224, second lead 234 to strengthen first lead 224, second lead 234 and heating element 2 welded steadiness respectively, effectively avoid first lead 224, second lead 234 to drop. It can be understood that the heating element 3 can also be arranged in a concentric circular ring shape or a mosquito-repellent incense shape, so that the heating element 2 is uniformly arranged on the atomizing surface 11, and the atomizing core has the excellent performances of high temperature rising rate, uniform temperature distribution and large heating area when in work.
Referring to fig. 3, 4 and 5, in some embodiments, the fixing member 3 includes a fixing section 31 embedded and fixed in the porous base 1 and a connecting section 32 connecting the heat generating member 2 and the fixing section 31, and the extending direction of the fixing section 31 and the extending direction of the connecting section 32 form an angle to each other to form a grapple-shaped structure. Through adopting above-mentioned structure setting, only need to inlay the canned paragraph 31 of deciding the structure and establish and be fixed in porous base member 1 inside to will generate heat piece 2 and canned paragraph 31 link to each other through linkage segment 32, can closely and firmly combine on porous base member 1's atomizing face 11 through mounting 3 with generating heat piece 2.
Referring to fig. 4 and 5, in some embodiments, the grapple structure has an inverted T-shaped profile or an L-shaped profile. Through adopting above-mentioned structure setting, constitute grapple column structure jointly by fixed segment 31 and linkage segment 32 to set grapple column structure to type of falling T structure or L type structure, make inlay in the difficult not hard up dropout of the inside grapple column structure of porous base member 1, further strengthened the steadiness that generates heat 2 and inlay on the atomizing face 11 of porous base member 1, be favorable to further preventing that the piece that generates heat 2 is not hard up to drop. It can be understood that, in some embodiments, the fixing member 3 is provided in a plurality of numbers, the fixing members 3 are distributed on the heat generating member 2 in an array, and the fixing members 3 and the heat generating member 2 are integrally formed, so that the parts of the heat generating member 2 are uniformly stressed, and the stability of the heat generating member 2 embedded on the atomizing surface 11 of the porous base body 1 is further enhanced.
Referring to fig. 2, 3 and 5, in some embodiments, the porous substrate 1 has a cylindrical shape, the porous substrate 1 has a vent hole 15 penetrating along an axial direction thereof, a liquid storage tank 14 is recessed on an end surface of the second end 13 of the porous substrate 1, and the aerosol-forming substrate in the liquid storage tank 14 can be transported to the atomizing surface 11 through the microporous structure. By adopting the scheme, the vent hole 15 is arranged on the porous matrix 1 in a penetrating way, the end surface of the first end 12 of the porous matrix 1 forms the atomizing surface 11, and the end surface of the second end 13 of the porous matrix 1 is concavely provided with the liquid storage tank 14. Then when using, only need to accept atomizing core in the atomizing chamber at least partially, communicate the notch and the stock solution chamber of reservoir 14, reservoir 14 alright storage part aerosol forms the matrix, atomizing face 11 and the atomizing piece on the atomizing face 11 are located the stock solution chamber outside simultaneously to form through the breather pipe (the lumen of breather pipe leads the cigarette passageway) with the venthole intercommunication of air vent 15 and atomizer, make the last aerosol that the heating atomization formed of atomizing face 11 collect air vent 15, then flow by the venthole, for the user inhales. Because reservoir 14 and atomizing face 11 set up respectively at the relative both ends of porous base member, shortened the distance that aerosol formed substrate transmitted to atomizing face 11, reduced the resistance that aerosol formed substrate received in the transmission course for aerosol formed substrate accessible microporous structure in the reservoir 14 lasts and transmits to atomizing face 11 fast, thereby improves porous base member's drain rate, and then improves porous base member drain efficiency, can guarantee that atomizing face 11 supplies liquid sufficient, effectively prevents atomizing core dry combustion method. It will be appreciated that the number of reservoirs 14 may be provided as one, two or more than three. When the number of the liquid storage tanks 14 is set to be a plurality (more than three), the liquid storage tanks 14 are arranged at equal intervals along the circumferential direction of the vent holes 15, so that the liquid supply of the atomizing surface 11 is more sufficient, and the dry burning of the atomizing core is further prevented.
The embodiment of the utility model provides a still provide an atomizer, be applicable to aerosol generating device. The embodiment of the utility model provides an atomizer includes atomizing core and the inside atomizing casing that is equipped with atomizing chamber and stock solution chamber, and the atomizing core that the atomizing core provided for above-mentioned arbitrary embodiment, atomizing core part at least accept in the atomizing chamber, and atomizing face 11 is located the outside in stock solution chamber. The atomization shell is provided with an air outlet (not shown), the atomization shell is also provided with a vent pipe (not shown) which is communicated with the vent hole 15 and the air outlet, and a pipe cavity of the vent pipe forms a smoke guide channel (not shown). The atomizer has all the technical characteristics of the atomizing core provided by any one of the above embodiments, so that the atomizer has the same technical effects as the atomizing core. When in use, only the atomizing core needs to be at least partially accommodated in the atomizing cavity, and the liquid storage tank 14 of the porous substrate 1 of the atomizing core is communicated with the liquid storage cavity of the atomizer, part of the aerosol-forming substrate can be stored in the liquid storage tank 14, and the aerosol-forming substrate in the liquid storage cavity and/or the liquid storage tank 14 can be continuously transmitted to the atomizing surface 11 through the microporous structure, so as to ensure that the atomizing surface 11 can supply sufficient liquid. The heat generated by the heating element 2 of the atomizing core after being electrified can heat and atomize the aerosol forming substrate transmitted to the atomizing surface 11 to form aerosol. When a user sucks, aerosol is collected from the periphery to the vent holes 15, then flows into the air outlet holes through the smoke guide channel (the vent pipe) in sequence, and finally flows out of the air outlet holes of the atomizer, so that the user can suck the aerosol.
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 any embodiment provided provide in the aforesaid provided. The aerosol generating device has all technical characteristics of the atomizing core or the atomizer provided by any one of the embodiments, so that the aerosol generating device has the same technical effect as the atomizing core.
The embodiment of the utility model provides an atomizing core is processed through following method steps and is prepared.
Step S01: weighing raw materials for preparing the porous matrix 1, wherein the raw materials for preparing the porous matrix 1 comprise the following components in parts by mass: 70-80% of ceramic powder, 20-25% of paraffin and 0-5% of stearic acid, mixing the porous matrix 1 with raw materials, and mixing to obtain ceramic slurry;
step S02: fixing the heating element 2 with the fixing element 3 in a forming mould according to a preset position, injecting ceramic slurry into the forming mould through a slurry injector, and embedding the heating element 2 on the outer surface of the porous matrix 1 through the fixing element 3 after the ceramic slurry is formed into a ceramic green body so as to obtain a porous ceramic atomizing core green body formed by embedding the heating element 2 and the ceramic green body;
step S03: and (3) dewaxing the porous ceramic atomizing core blank, and sintering and solidifying the dewaxed porous ceramic atomizing core blank to ensure that the heating part 2 is firmly combined with the outer surface of the porous matrix 1 so as to prepare and obtain a finished product of the porous ceramic atomizing core.
Step S04: the machining method of the atomizing core further comprises an electrode lead welding step, wherein the electrode lead welding step comprises the following steps: after the porous ceramic atomizing core finished product is cleaned, dried and detected, a first lead 224 is welded at a first electrode welding point of the porous ceramic atomizing core finished product, and a second lead 234 is welded at a second electrode welding point of the porous ceramic atomizing core finished product.
In step S01, the ceramic powder includes at least one of magnesium oxide, calcium oxide, aluminum hydroxide, aluminum oxide, quartz powder, diatomaceous earth, silicon carbide, glass powder, and clay. The premix treatment can be carried out according to a conventional mixing mode of mixing ceramic raw materials in the ceramic field, and in the process of preparing ceramic slurry, corresponding sintering aids, pore-forming agents, binders and plasticizers are added as necessary to adjust and improve the strength, porosity and pore diameter of the porous matrix 1.
In the step S02, the heating element 2 is made of at least one of nichrome, ferrochromium alloy, ferronickel alloy, nickel, and titanium. The heating element 2 is a heating sheet arranged in a diaphragm shape, and the thickness of the heating sheet is 0.1-0.16 mm, so that the heating element 2 is embedded on the surface of the porous base body 1 to form the heating element 2 with reasonable resistance value.
In the step S02, the ceramic slip casting slurry is slip-cast into the ceramic green body, which may be a conventional mixing processing manner in which the ceramic slip casting slurry is slip-cast into the ceramic green body with the designed size through a mold by using a slip casting machine. In some embodiments, the ceramic green body is formed by slip casting under the following conditions: the temperature of the ceramic grouting slurry is controlled to be 75-90 ℃, the grouting pressure is controlled to be 0.6-1.5 Mpa, the ceramic grouting slurry can be well grouted and formed into ceramic green bodies, and the defects of porous ceramics are favorably reduced.
In the step S03, the dewaxing treatment of the porous ceramic atomizing core blank may be a conventional dewaxing treatment method for dewaxing the porous ceramic atomizing core blank. In some embodiments, the paraffin removal process can gradually volatilize and discharge the paraffin rather than explosively volatilize and discharge the paraffin, so that the defects of the porous ceramic can be reduced, and the yield of the porous ceramic can be improved. In some embodiments, the porous ceramic atomizing core blank is wax-removed in the following manner: after graphite is paved and covered at the bottom of the tray, ceramic green bodies are placed on the surfaces of the graphite, a layer of graphite is covered on the ceramic green bodies, the ceramic green bodies are buried in the graphite, and heat preservation is carried out for 2-4 hours at the temperature of 200-300 ℃. Through right the embodiment of the utility model provides a condition control of porous ceramic's dewaxing mode combines the regulation and control to sintering process, realizes further improving the embodiment of the utility model provides an intensity of ceramic body behind the dewaxing.
In above-mentioned step S03, porous ceramic atomizing core base sintering temperature control after the wax removal is at 600 ~ 700 ℃, through right the embodiment of the utility model provides a porous ceramic 'S sintering temperature is regulated and control, realizes further improving the embodiment of the utility model provides a porous ceramic' S the regulation and the improvement in intensity, porosity and aperture for porous ceramic is difficult for the fracture, indeformable, and makes porous ceramic have good porosity and suitable aperture. And, control the sintering temperature at 600 ~ 700 ℃ for the sintering temperature is less than the fusing point of the piece 2 that generates heat and mounting 3, avoids generating heat piece 2 and mounting 3 damage.
Example 1
(1) Weighing the following raw material components in parts by mass: 70% of ceramic powder, 25% of paraffin and 5% of stearic acid by mass, and mixing the porous matrix 1 with the raw materials to obtain the ceramic premix powder. Putting the binder and the plasticizer into a stirring and defoaming machine to be melted for 1 hour, adding premixed ceramic premix powder, stirring and defoaming for 4 hours, and mixing to obtain ceramic slurry;
(2) the stirred ceramic slurry was poured into an injection molding machine, and the temperature of the ceramic slurry was maintained at 75 ℃. Before the slip casting is started, fixing the heating element 2 with the fixing element 3 in a forming mould according to a preset position, then injecting ceramic slurry into the forming mould through a slip casting machine, and after the ceramic slurry is formed into a ceramic green body, embedding the heating element 2 on the outer surface of the porous matrix 1 through the fixing element 3 so as to obtain a porous ceramic atomizing core green body formed by embedding the heating element 2 and the ceramic green body;
(3) and (3) carrying out wax removal treatment on the porous ceramic atomizing core blank. Specifically, the ceramic green body is placed in the middle of graphite powder, and is subjected to heat preservation and wax removal at the temperature of 200 ℃ for 120 minutes. And then, sintering and solidifying the porous ceramic atomizing core blank subjected to the dewaxing treatment, so that the heating piece 2 is firmly combined with the outer surface of the porous base body 1, and thus a finished product of the porous ceramic atomizing core is prepared. Specifically, the sintering temperature is controlled at 600 ℃, so that the sintering temperature is lower than the melting points of the heating element 2 and the fixing element 3, and the heating element 2 and the fixing element 3 are prevented from being damaged.
(4) After the porous ceramic atomizing core finished product is cleaned, dried and detected, a first lead 224 is welded at a first electrode welding point of the porous ceramic atomizing core finished product, and a second lead 234 is welded at a second electrode welding point of the porous ceramic atomizing core finished product.
The atomization core in example 1 was subjected to atomization temperature testing by a thermal infrared imager, the atomization temperature data of the testing are detailed in table 1, the distribution of the tested atomization temperature is shown in fig. 7, and the temperature rise rate change of the tested atomization temperature is shown in fig. 8 and 9.
Example 2
(1) Weighing the following raw material components in parts by mass: the mass percent of the ceramic powder is 76%, the mass percent of the paraffin is 22% and the mass percent of the stearic acid is 2%, and the porous matrix 1 is mixed by using the raw materials to obtain the ceramic premix powder. Putting the binder and the plasticizer into a stirring and defoaming machine to be melted for 1.5 hours, adding the premixed ceramic premix powder, stirring and defoaming for 5 hours, and mixing to obtain ceramic slurry;
(2) the stirred ceramic slurry was poured into an injection molding machine, and the temperature of the ceramic slurry was maintained at 81 ℃. Before the slip casting is started, fixing the heating element 2 with the fixing element 3 in a forming mould according to a preset position, then injecting ceramic slurry into the forming mould through a slip casting machine, and after the ceramic slurry is formed into a ceramic green body, embedding the heating element 2 on the outer surface of the porous matrix 1 through the fixing element 3 so as to obtain a porous ceramic atomizing core green body formed by embedding the heating element 2 and the ceramic green body;
(3) and (3) carrying out wax removal treatment on the porous ceramic atomizing core blank. Specifically, the ceramic green body is placed in the middle of graphite powder, and is subjected to heat preservation and dewaxing at 250 ℃ for 180 minutes. And then, sintering and solidifying the porous ceramic atomizing core blank subjected to the dewaxing treatment, so that the heating piece 2 is firmly combined with the outer surface of the porous base body 1, and thus a finished product of the porous ceramic atomizing core is prepared. Specifically, the sintering temperature is controlled at 650 ℃, so that the sintering temperature is lower than the melting points of the heating element 2 and the fixing element 3, and the heating element 2 and the fixing element 3 are prevented from being damaged.
(4) After the porous ceramic atomizing core finished product is cleaned, dried and detected, a first lead 224 is welded at a first electrode welding point of the porous ceramic atomizing core finished product, and a second lead 234 is welded at a second electrode welding point of the porous ceramic atomizing core finished product.
The atomization core in the embodiment 2 is subjected to atomization temperature test by a thermal infrared imager by adopting the same test method as that of the embodiment 1, the tested atomization temperature data are detailed in table 1, the tested atomization temperature distribution condition is shown in fig. 10, and the tested temperature rise rate change of the atomization temperature is shown in fig. 11 and 12.
Example 3
(1) Weighing the following raw material components in parts by mass: the mass percent of the ceramic powder is 80 percent and the mass percent of the paraffin is 20 percent, and the porous matrix 1 is mixed by using the raw materials to obtain the ceramic premix powder. Putting the binder and the plasticizer into a stirring and defoaming machine to be melted for 2 hours, adding the premixed ceramic premix powder, stirring and defoaming for 5 hours, and mixing to obtain ceramic slurry;
(2) the stirred ceramic slurry was poured into an injection molding machine, and the temperature of the ceramic slurry was maintained at 90 ℃. Before the slip casting is started, fixing the heating element 2 with the fixing element 3 in a forming mould according to a preset position, then injecting ceramic slurry into the forming mould through a slip casting machine, and after the ceramic slurry is formed into a ceramic green body, embedding the heating element 2 on the outer surface of the porous matrix 1 through the fixing element 3 so as to obtain a porous ceramic atomizing core green body formed by embedding the heating element 2 and the ceramic green body;
(3) and (3) carrying out wax removal treatment on the porous ceramic atomizing core blank. Specifically, the ceramic green body is placed in the middle of graphite powder, and is subjected to heat preservation and wax removal at 300 ℃ for 240 minutes. And then, sintering and solidifying the porous ceramic atomizing core blank subjected to the dewaxing treatment, so that the heating piece 2 is firmly combined with the outer surface of the porous base body 1, and thus a finished product of the porous ceramic atomizing core is prepared. Specifically, the sintering temperature is controlled at 700 ℃, so that the sintering temperature is lower than the melting points of the heating element 2 and the fixing element 3, and the heating element 2 and the fixing element 3 are prevented from being damaged.
(4) After the porous ceramic atomizing core finished product is cleaned, dried and detected, a first lead 224 is welded at a first electrode welding point of the porous ceramic atomizing core finished product, and a second lead 234 is welded at a second electrode welding point of the porous ceramic atomizing core finished product.
The atomization core in the embodiment 3 is subjected to atomization temperature test by a thermal infrared imager by adopting the same test method as that of the embodiment 1, the tested atomization temperature data are detailed in table 1, the tested atomization temperature distribution condition is shown in fig. 13, and the tested temperature rise rate change of the atomization temperature is shown in fig. 14 and 15.
Comparative example
(1) Weighing the following raw material components in parts by mass: the mass percent of the ceramic powder is 65%, the mass percent of the starch is 15%, the mass percent of the paraffin is 18.5% and the mass percent of the fatty acid is 1.5%, and the porous matrix 1 is mixed by using the raw materials to obtain the ceramic premix powder. Putting the binder and the plasticizer into a stirring and defoaming machine to be melted for 2 hours, adding the premixed ceramic premix powder, stirring and defoaming for 4 hours, and mixing to obtain ceramic slurry;
(2) pouring the stirred ceramic slurry into an injection molding machine, keeping the temperature of the ceramic slurry at 90 ℃, injecting the ceramic slurry into a forming mold through a slurry injector, embedding a heating wire on the inner hole wall of a columnar hollow ceramic green body after the ceramic slurry is formed into the columnar hollow ceramic green body, so as to obtain a porous ceramic atomizing core green body formed by embedding the heating wire and the ceramic green body;
(3) and (3) dewaxing the porous ceramic atomizing core blank. Specifically, the ceramic green body is placed in the middle of graphite powder, and is subjected to heat preservation and wax removal at 300 ℃ for 240 minutes. And then, sintering and solidifying the porous ceramic atomizing core blank subjected to the dewaxing treatment, so that the heating part 2 is firmly combined on the inner hole wall of the columnar hollow ceramic blank, and a finished product of the porous ceramic atomizing core is prepared.
(4) And cleaning, drying and detecting the porous ceramic atomizing core finished product, and welding an electrode lead.
The atomization core in the comparative example was subjected to atomization temperature test by a thermal infrared imager by the same test method as in example 1, the atomization temperature data of the test are detailed in table 1, the distribution of the atomization temperature of the test is shown in fig. 16, and the temperature rise rate change of the atomization temperature of the test is shown in fig. 17 and 18.
Testing the relevant performance of the atomizing core:
the atomization cores of the above examples 1 to 3 and comparative examples were subjected to atomization temperature tests by a thermal infrared imager, respectively. Specifically, during testing, direct current power supply is adopted, the atomizing core keeps constant heating power of 7W, a heating mode of heating for 3s and 30s for 10 times of circulation is adopted, and real-time data acquisition is carried out by taking 0.02s as acquisition frequency. The test results are shown in table 1 below.
Table 1 atomization core atomization temperature test tables in examples 1 to 3 and comparative example
As can be seen from table 1 above, the temperature increase rate of the atomizing core in examples 1 to 3 was faster than that in the comparative example. As can be seen from fig. 7, 10, 13 and 16, the atomizing cores of examples 1 to 3 have excellent properties of uniform temperature distribution and large heat generation area.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An atomizing core for an atomizer, said atomizing core comprising:
a porous substrate, at least part of the outer surface of which forms an atomization surface for heating and atomizing an aerosol-forming substrate, the porous substrate having therein a microporous structure for adsorbing and storing the aerosol-forming substrate, the microporous structure being capable of transporting the aerosol-forming substrate to the atomization surface;
a heating element disposed on an outer surface of the porous substrate for heating and atomizing the aerosol-forming substrate delivered to the atomizing surface; and
the fixing piece is used for fixing the heating piece on the outer surface of the porous base body, at least part of the fixing piece is embedded and fixed in the porous base body, and at least part of the fixing piece is fixedly connected with the heating piece.
2. The atomizing core according to claim 1, wherein the porous base has a cylindrical shape in its outer contour, the porous base has a first end and a second end along its axial direction, an end face of the first end forms the atomizing surface, and the heat generating member is provided on the atomizing surface.
3. The atomizing core according to claim 1, wherein the heat generating member includes a ring-shaped heat generating sheet disposed at a central position, a first heat generating structure formed by a plurality of first arc-shaped heat generating sheets arranged in a concentric circular arc, and a second heat generating structure formed by a plurality of second arc-shaped heat generating sheets arranged in a concentric circular arc, and the first heat generating structure and the second heat generating structure are centrosymmetric with respect to a center of the ring-shaped heat generating sheet, and the first heat generating structure and the second heat generating structure are electrically connected to the ring-shaped heat generating sheet, respectively.
4. The atomizing core according to claim 3, wherein the first heat-generating structure includes a plurality of the first arc-shaped heat-generating sheets, a first connecting sheet electrically connecting two adjacent first arc-shaped heat-generating sheets, and a second connecting sheet electrically connecting the first arc-shaped heat-generating sheet located at the innermost side of the first heat-generating structure and the annular heat-generating sheet; the second heating structure comprises a plurality of second arc-shaped heating pieces, a third connecting piece and a fourth connecting piece, wherein the adjacent two second arc-shaped heating pieces are electrically connected with each other, and the second arc-shaped heating piece which is positioned at the innermost side of the second heating structure is electrically connected with the annular heating piece.
5. The atomizing core according to claim 3, wherein the first heating structure includes a plurality of first arc-shaped heating sheets arranged in a concentric circular arc, and a first lead electrically connected to the first arc-shaped heating sheet located at the outermost side of the first heating structure; the second heating structure comprises a plurality of second arc-shaped heating sheets which are arranged in a concentric circular arc manner, and a second lead which is electrically connected with the second arc-shaped heating sheets positioned on the outermost side of the second heating structure.
6. The atomizing core according to claim 1, wherein the fixing member includes a fixing section for being embedded and fixed in the porous base body and a connecting section for connecting the heat generating member and the fixing section, and an extending direction of the fixing section and an extending direction of the connecting section are angled with each other to form a grapple-like structure embedded in the porous base body.
7. The atomizing core according to any one of claims 1 to 6, characterized in that the number of the fixing members is provided in plural, and a plurality of the fixing members are arranged in an annular array.
8. An atomising core according to any of claims 1 to 6, in which the porous substrate is cylindrical in profile, the porous substrate having a vent hole extending axially therethrough, a reservoir being recessed in the end face of the second end of the porous substrate, the reservoir being such that aerosol-forming substrate may be transported to the atomising surface via the microporous structure.
9. An atomizer, including atomizing core and the inside atomizing casing that is equipped with atomizing chamber and stock solution chamber, characterized in that, atomizing core is according to any one of claims 1 to 8 atomizing core, atomizing core at least part is acceptd in atomizing chamber, the atomizing face is located the outside in stock solution chamber.
10. An aerosol generating device comprising an atomising core according to any of claims 1 to 8 or an atomiser according to claim 9.
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| CN202122292955.7U CN215992757U (en) | 2021-09-22 | 2021-09-22 | Atomizing core, atomizer and aerosol generating device |
| PCT/CN2022/111320 WO2023045600A1 (en) | 2021-09-22 | 2022-08-10 | Atomizing core, atomizer, aerosol generating device, and atomizing core processing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594521A (en) * | 2022-10-19 | 2023-01-13 | 深圳市卓尔悦电子科技有限公司（Cn） | Porous ceramic and preparation method and application thereof |
| WO2023029864A1 (en) * | 2021-08-31 | 2023-03-09 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer and aerosol generating apparatus |
| WO2023045600A1 (en) * | 2021-09-22 | 2023-03-30 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer, aerosol generating device, and atomizing core processing method |
| WO2023151383A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳麦克韦尔科技有限公司 | Electronic atomization device, and atomizer and atomization core thereof |
| WO2023151382A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳麦克韦尔科技有限公司 | Atomizer and atomizing core thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023029864A1 (en) * | 2021-08-31 | 2023-03-09 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer and aerosol generating apparatus |
| WO2023045600A1 (en) * | 2021-09-22 | 2023-03-30 | 常州市派腾电子技术服务有限公司 | Atomizing core, atomizer, aerosol generating device, and atomizing core processing method |
| WO2023151383A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳麦克韦尔科技有限公司 | Electronic atomization device, and atomizer and atomization core thereof |
| WO2023151382A1 (en) * | 2022-02-09 | 2023-08-17 | 深圳麦克韦尔科技有限公司 | Atomizer and atomizing core thereof |
| CN115594521A (en) * | 2022-10-19 | 2023-01-13 | 深圳市卓尔悦电子科技有限公司（Cn） | Porous ceramic and preparation method and application thereof |
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