CN215992753U

CN215992753U - Atomizing core, atomizer and aerosol generating device

Info

Publication number: CN215992753U
Application number: CN202122092175.8U
Authority: CN
Inventors: 邱伟华
Original assignee: Changzhou Paiteng Electronic Technology Co Ltd
Current assignee: Changzhou Paiteng Electronic Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-11
Anticipated expiration: 2031-08-31
Also published as: WO2023029864A1

Abstract

The utility model provides an atomizing core, an atomizer and an aerosol generating device. The atomizing core comprises a porous base body and a heating element. The liquid storage space is connected with the liquid cavity, and the aerosol-forming matrix in the liquid storage space can be transmitted to the atomizing surface through the microporous structure. The atomizing core is formed by forming an atomizing surface on at least part of the outer surface of the porous substrate. When in use, a part of the aerosol-forming matrix is stored in the liquid storage space on the porous substrate, and the aerosol-forming matrix in the liquid storage space is continuously and rapidly transported to Atomized surface. In this way, since the distance from the aerosol-forming substrate to be transmitted to the atomizing surface is shortened, the resistance received by the aerosol-forming substrate during the transmission process is reduced, thereby improving the liquid conduction rate of the porous matrix, thereby improving the liquid conduction efficiency of the porous matrix. Ensure that the atomizing surface has sufficient liquid supply to prevent the atomizing core from drying out.

Description

Atomizing core, atomizer and aerosol generating device

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

Currently, in an atomizer of an aerosol generating device manufactured by using the joule heat principle, an atomizing core generally adopts an atomizing structure in which an oil-conducting material such as cellucotton is wound around a metal heating wire. The atomization core utilizes the heat generated after the metal heating wire is electrified to heat the aerosol forming substrate stored in the oil guide material, so as to achieve the purpose of forming the substrate by atomizing the aerosol. However, the atomizing core formed by winding the metal heating wire with the oil guiding material has a slow liquid guiding speed and a low liquid guiding efficiency, and cannot continuously supply liquid to the metal heating wire, so that the liquid supply of the atomizing core is insufficient, the problems of dry burning of the atomizing core, carbonization of the oil guiding material due to heating, and the like are easily caused, the service life of the atomizing core is shortened, and the use safety of the atomizing core is reduced.

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 can realize leading fast and improve the atomizing core of leading liquid efficiency.

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:

the aerosol-forming substrate atomizing device comprises a porous substrate, wherein at least part of the outer surface of the porous substrate forms an atomizing surface used for heating and atomizing aerosol-forming substrates, a liquid storage space used for being communicated with a liquid storage cavity of the atomizer is formed in the porous substrate, the part of the porous substrate between the liquid storage space and the atomizing surface is provided with a microporous structure, and the aerosol-forming substrates in the liquid storage space can be transmitted to the atomizing surface through the microporous structure; and

and the heating element is arranged on the porous base body and used for heating and atomizing the aerosol-forming substrate transmitted to the atomizing surface.

Furthermore, the porous matrix is provided with vent holes.

Further, the air vent is followed the thickness direction of porous base member run through set up in on the porous base member, the porous base member is followed the axial of air vent has first end and second end, be formed with on the terminal surface of first end the atomizing face, the concave reservoir that is equipped with on the terminal surface of second end, the reservoir constitutes the stock solution space, the notch of reservoir be used for with the stock solution chamber intercommunication of atomizer.

Furthermore, a columnar protrusion is convexly arranged on the end face of the second end corresponding to the air vent, an air flow buffering channel is arranged on the columnar protrusion, and the air flow buffering channel is used for communicating the air vent with an air outlet of the atomizer.

Furthermore, the columnar protrusion and the porous matrix are integrally formed.

Furthermore, the columnar protrusion is arranged in the middle of the end face of the second end, at least two liquid storage tanks are concavely arranged on the end face of the second end, and the at least two liquid storage tanks are arranged at intervals along the circumferential direction of the columnar protrusion.

Further, the interior of the porous matrix and/or the interior of the columnar projections have a microporous structure that adsorbs, stores, and transports aerosol-forming substrate stored inside the porous matrix and/or inside the columnar projections to the atomization surface.

Further, the heating element is a heating line, and the heating line is combined on the atomization surface.

Further, the heating lines are arranged in an elliptical parallel line structure.

Based on the above-mentioned problem that exists among the prior art, the utility model discloses a second purpose provides one kind and has the aforesaid can realize leading fast and improve the atomizer of the atomizing core of leading liquid efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an atomizer comprising the atomizing core of any of the above aspects.

Based on the above-mentioned problem that exists among the prior art, the utility model provides a third of the purpose provides an aerosol generating device of atomizing core that has the aforesaid and can realize leading fast and improve liquid efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an aerosol generating device comprising the atomising cartridge or the atomiser 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 form the atomizing face through at least partial surface at porous base member, form the stock solution space with the stock solution chamber intercommunication of atomizer on porous base member to set up the piece that generates heat after the circular telegram on porous base member. In use, the aerosol-forming substrate in the liquid reservoir is continuously and rapidly transported to the atomising surface by virtue of the microporous structure between the liquid reservoir and the atomising surface, by storing part of the aerosol-forming substrate in the liquid reservoir on the porous substrate. Therefore, the distance from the aerosol forming substrate to the atomizing surface is shortened, and the resistance of the aerosol forming substrate in the transmission process is reduced, so that the liquid guiding speed of the porous substrate is improved, the liquid guiding efficiency of the porous substrate is improved, sufficient liquid supply of the atomizing surface can be ensured, and the atomizing core is effectively prevented from being burnt.

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 schematic top view of a porous substrate according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic cross-sectional view taken along line B-B in fig. 3.

Wherein, in the figures, the respective reference numerals:

1-a porous matrix; 11-an atomizing surface; 12-a liquid storage tank; 13-a first end; 14-a second end; 15-a vent hole; 16-columnar protrusions; 17-an air flow buffer channel;

2-a heat generating member; 21-arc heating line; 22-a first ear heating line; 23-second ear heating line.

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, the atomizing core includes a porous substrate 1 and a heat generating member 2, an atomizing surface 11 is formed on at least a portion of an outer surface of the porous substrate 1, a liquid storage space for storing a portion of the aerosol-forming substrate is formed on the porous substrate 1, and a portion of the porous substrate 1 between the liquid storage space and the atomizing surface 11 has a microporous structure with good liquid transmission performance, so that the aerosol-forming substrate in the liquid storage space can be transmitted to the atomizing surface 11 through the microporous structure. The heating element 2 is arranged on the porous matrix 1, and the heating element 2 can be a heating sheet, a heating net, a heating coating, a heating circuit or a heating film, etc. It is understood that when the heat generating member 2 is a heat generating sheet or a heat generating net, the heat generating member 2 may be embedded in the porous base 1. When the heat generating member 2 is a heat generating coating layer, a heat generating circuit, or a heat generating film, the heat generating member 2 may be bonded to the outer surface of the porous substrate 1. The porous substrate 1 is at least one of porous materials having a capillary effect of micropores, such as porous ceramics, foamed metals, and porous glasses. The liquid storage space includes, but is not limited to, a liquid storage chamber disposed inside the porous substrate 1, a liquid storage tank 12 recessed on the surface of the porous substrate 1, or a liquid storage bin disposed on the porous substrate 1. When the atomizer is used, only the liquid storage space of the porous substrate 1 is communicated with the liquid storage cavity of the atomizer, so that part of the aerosol-forming substrate is stored in the liquid storage space, and the aerosol-forming substrate in the liquid storage space can be continuously transmitted to the atomizing surface 11 through the microporous structure, thereby ensuring sufficient liquid supply of the atomizing surface 11. The heat generated by the heating element 2 after being electrified can heat and atomize the aerosol forming substrate transmitted to the atomizing surface 11 to form aerosol, and the aerosol flows out from the air outlet of the atomizer for the user to suck.

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, forms the stock solution space with the stock solution chamber intercommunication of atomizer on porous base member 1 to set up the piece 2 that generates heat after the circular telegram on porous base member 1. In use, the aerosol-forming substrate in the liquid reservoir is continuously and rapidly transported to the atomising surface 11 by virtue of the microporous structure between the liquid reservoir and the atomising surface 11, by storing part of the aerosol-forming substrate in the liquid reservoir on the porous substrate 1. Like this, because the liquid transmission distance between stock solution space and the atomizing surface is shorter, shortened the distance that aerosol formed substrate transmitted to atomizing surface 11, reduced the resistance that aerosol formed substrate received in the transmission course to improve porous base member 1's drain speed, and then improve porous base member 1 drain efficiency, can guarantee that atomizing surface 11 supplies liquid sufficient, effectively prevent atomizing core dry combustion method.

Referring to fig. 1, 3 and 4, in some embodiments, the porous substrate 1 is provided with a vent 15 for collecting aerosol. When using, the atomizing surface 11 is located the stock solution chamber outside, and air vent 15 accessible goes out the gas outlet (not shown) intercommunication of cigarette passageway and atomizer, then by the aerosol that the piece 2 that generates heat heats the atomizing formation on atomizing surface 11, gathers in air vent 15, flows to the venthole of atomizer through going out cigarette passageway (not shown) in proper order again, finally flows out by the venthole of atomizer. The aerosol formed by atomization on the atomization surface 11 is firstly gathered in the vent holes 15 from the periphery and then guided to the air outlet holes through the smoke outlet channel (not shown), so that the air inlet amount is reduced, and the taste of the aerosol is better.

Referring to fig. 1, fig. 3 and fig. 4, in some embodiments, the multi-vent hole 15 penetrates through the porous substrate 1 along a thickness direction of the porous substrate 1, the porous substrate 1 has a first end 13 and a second end 14 along an axial direction of the vent hole 15, an atomizing surface 11 is formed on an end surface of the first end 13, a reservoir 12 is recessed on an end surface of the second end 14, the reservoir 12 forms a reservoir space, and a notch of the reservoir 12 is used for communicating with a reservoir cavity (not shown) of the atomizer. Through adopting above-mentioned scheme, along the axial direction of air vent 15, porous base member 1 has first end 13 and second end 14, be formed with atomizing face 11 on the terminal surface of first end 13, and the concave reservoir 12 that is equipped with on the terminal surface of second end 14, only need put into the atomizing chamber with porous base member 1's second end 14, then can make the notch and the stock solution chamber intercommunication of reservoir 12, reservoir 12 alright storage part aerosol forms the matrix, atomizing face 11 is located the stock solution chamber outside simultaneously, and form through the lumen of breather pipe (the lumen of breather pipe) with air vent 15 and venthole intercommunication, make the aerosol that the heating atomization formed on atomizing face 11 collect air vent 15, then flow by the venthole, in order to supply the user to inhale. Because reservoir 12 and atomizing surface 11 set up respectively at porous base member 1's relative both ends, shortened the distance that aerosol formed substrate transmitted to atomizing surface 11, reduced the resistance that aerosol formed substrate received in the transmission course, make aerosol in reservoir 12 form substrate accessible microporous structure and continuously and transmit to atomizing surface 11 fast, thereby improve porous base member 1's drain rate, and then improve porous base member 1 drain efficiency, can guarantee that atomizing surface 11 supplies sufficient liquid, effectively prevent atomizing core dry combustion method. In addition, the liquid storage tank 12 and the atomization surface 11 are respectively arranged at two opposite ends of the porous matrix 1, so that the thickness of a porous matrix part between the inner bottom surface of the liquid storage tank 12 and the atomization surface 11 is relatively thin, the porous matrix part has a microporous structure for quickly transmitting liquid in the liquid storage tank 12 to the atomization surface 11, the liquid guiding speed is high, and harmful substances caused by overhigh temperature of the atomization surface 11 are avoided.

Referring to fig. 1, 4 and 5, in some embodiments, a cylindrical protrusion 16 is protruded from an end surface of the second end 14 corresponding to the vent hole 15, an airflow buffering channel 17 is disposed on the cylindrical protrusion 16, and the airflow buffering channel 17 is used for communicating the vent hole 15 with an outlet hole of the atomizer. By adopting the scheme, the end face of the second end 14 of the porous matrix 1 is convexly provided with the columnar bulge 16, the columnar bulge 16 is provided with the airflow buffer channel 17, and the air vent 15 and the air outlet hole can be communicated through the airflow buffer channel 17 as the arrangement position of the columnar bulge 16 corresponds to the arrangement position of the air vent 15. It will be appreciated that when the columnar projections 16 extend axially along the vent holes 15 for a sufficient length, the air flow buffering passages 17 may directly communicate with the vent holes. That is, the air flow buffer passage 17 may constitute a smoke guide passage, and thus the provision of a ventilation pipe may be omitted. In other of these embodiments, the flow buffer channel 17 may communicate indirectly with the outlet aperture through a vent tube. Since the columnar projection 16 is provided in a protruding manner on the end surface of the second end 14 of the porous base 1, the columnar projection 16 is provided with the airflow buffer passage 17. When a user sucks, the aerosol collected in the vent holes 15 can reduce the flowing speed of the airflow in the process of flowing through the airflow buffer channel 17, so that the aerosol is fully mixed with the air, the situation of choking smoke is avoided, and the taste of the aerosol is improved. Referring to fig. 1, 4 and 5, in some embodiments, the stud bump 16 is integrally formed with the porous substrate 1 to enhance the connection strength between the stud bump 16 and the porous substrate 1.

Referring to fig. 1, 3 and 4, in some embodiments, the pillar-shaped protrusion 16 is disposed at a central position of the end surface of the second end 14, at least two reservoirs 12 are recessed on the end surface of the second end 14, and the at least two reservoirs 12 are disposed at intervals along the circumference of the pillar-shaped protrusion 16. Through adopting above-mentioned scheme, locate the terminal surface central part of second end 14 with air vent 15 to set up column arch 16 at the central position of the terminal surface of second end 14 protrudingly, after air vent 15 and air current buffering channel 17 intercommunication, can collect the venthole in the atomizer with aerosol from all around, reduce the volume that the air got into, make the taste of aerosol better. In addition, at least two liquid storage tanks 12 are concavely arranged on the end surface of the second end 14, and the at least two liquid storage tanks 12 are arranged at intervals along the circumferential direction of the columnar protrusion 16, so that the liquid supply of the atomizing surface 11 is more sufficient, and the dry burning of the atomizing core is further prevented. It is to be understood that the number of reservoirs 12 on the porous substrate 1 may be set to one or two, or may be set to plural. When the number of the liquid storage tanks 12 is set to be plural, the plural liquid storage tanks 12 are arranged at equal intervals along the circumferential direction of the columnar projection 16, so that the liquid supply of the atomizing surface 11 is more sufficient.

In some of these embodiments, the porous matrix 1 and/or the columnar projections 16 have a microporous structure that adsorbs and stores the aerosol-forming substrate, and the microporous structure can transport the aerosol-forming substrate stored inside the porous matrix 1 and/or inside the columnar projections 16 to the atomizing surface 11. In this embodiment, not only the portion of the porous substrate 1 between the liquid space and the atomizing surface 11 has a microporous structure, but also a microporous structure for adsorbing and storing the aerosol-forming substrate inside the porous substrate 1 and/or inside the stud bump 16, further increasing the volume of the liquid reservoir on the basis of the reservoir 12 storing a portion of the aerosol-forming substrate. Meanwhile, aerosol forming substrates stored in the porous substrate 1 and/or the columnar protrusions 16 are transmitted to the atomizing surface 11 through the microporous structures in the porous substrate 1 and/or the columnar protrusions 16, so that the liquid guiding area and the liquid guiding speed are further increased, liquid supply of the atomizing surface 11 is sufficient, the amount of aerosol formed by atomizing the atomizing core is increased, and dry burning of the atomizing core can be further prevented.

Referring to fig. 2, in some embodiments, the heating element 2 is a heating circuit, and the heating circuit is coupled to the atomizing surface 11. It is understood that the heating circuit may be printed on the atomizing surface 11 by thick film printing, and the material of the heating circuit is composed of two or more metals, such as gold, silver, palladium, platinum, etc. Referring to fig. 2, in some embodiments, the heating circuit is configured as an elliptical parallel circuit structure, and the elliptical parallel circuit structure is disposed around the vent hole to improve the uniformity of the wiring of the heating circuit, so that the heat generated by the heating circuit is uniformly distributed on the atomizing surface 11, which is beneficial to uniformly heating the aerosol-forming substrate and improving the taste of the aerosol. Referring to fig. 2, in some embodiments, the elliptical parallel circuit structure includes two circular arc heating lines 21 symmetrically disposed about the central axis of the vent 15, and a first ear-shaped heating line 22 and an ear-shaped heating line 23 connecting the two circular arc heating lines in parallel, wherein the two circular arc heating lines 21, the first ear-shaped heating line 22 and the ear-shaped heating line 23 together form the elliptical parallel circuit structure.

In some embodiments, when the porous substrate 1 is made of porous ceramic, the porous ceramic substrate with high porosity, uniform pore distribution, controllable pore size and good mechanical properties is prepared by an injection molding process. Wherein, the porosity of the microporous structure of the porous ceramic matrix is 50% -70%, and the pore diameter is 10-50 um, so that the porous ceramic matrix has good liquid storage and liquid guiding capabilities. It is understood that in some embodiments, the porous ceramic matrix comprises a raw material composition including, but not limited to, two or more silicate materials such as diatomaceous earth, alumina, zirconia, silicon carbide, glass frit, and the like. In some of these embodiments, the porosity of the microporous structure includes, but is not limited to, 50% to 70%, and the pore size of the microporous structure includes, but is not limited to, 10 to 50 um.

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 atomizer main part (not shown) that is equipped with atomizing chamber (not shown in the figure) and stock solution chamber (not shown in the figure), is equipped with venthole (not shown in the figure) in the atomizer main part, still is equipped with the breather pipe (not shown in the figure) that feeds through air current buffering passageway 17 and venthole in the atomizer main part, and the lumen of breather pipe forms leads cigarette passageway (not shown in the figure). The atomizing core that any embodiment of the aforesaid provided atomizes, and the atomizing core sets up in the atomizing chamber. 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 the atomizing device is used, the atomizing core is only needed to be arranged in the atomizing cavity, the liquid storage space of the porous base body 1 of the atomizing core is communicated with the liquid storage cavity of the atomizer, part of aerosol forming substrates can be stored in the liquid storage space, the aerosol forming substrates in the liquid storage space can be continuously transmitted to the atomizing surface 11 through the microporous structure, and sufficient liquid supply of the atomizing surface 11 is ensured. 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 airflow buffer channel 17 and the smoke guide channel (ventilation pipe) in sequence, and finally flows out of the air outlet holes of the atomizer for the user to suck.

The embodiment of the utility model provides a still provide an aerosol generating device, aerosol generating device include the atomizing core that any above-mentioned embodiment provided or the atomizer that any above-mentioned embodiment provided. Since the aerosol generating device has all the technical characteristics of the atomizing core or the atomizer provided by any one of the above embodiments, the aerosol generating device has the same technical effects as the atomizing core.

The above description is only 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

1. An atomizing core for an atomizer, said atomizing core comprising:

2. The atomizing core of claim 1, wherein the porous substrate is provided with vent holes.

3. The atomizing core according to claim 2, wherein the vent hole penetrates through the porous substrate in the thickness direction of the porous substrate, the porous substrate has a first end and a second end in the axial direction of the vent hole, the atomizing surface is formed on the end surface of the first end, a reservoir is concavely arranged on the end surface of the second end, the reservoir forms the reservoir space, and a notch of the reservoir is used for communicating with the reservoir cavity of the atomizer.

4. The atomizing core according to claim 3, wherein a cylindrical protrusion is convexly provided on the end face of the second end at a position corresponding to the vent hole, and an airflow buffering channel is provided on the cylindrical protrusion and used for communicating the vent hole with an air outlet of the atomizer.

5. The atomizing core of claim 4, wherein the columnar protrusions are integrally formed with the porous matrix.

6. The atomizing core of claim 4, wherein the columnar protrusion is disposed at a central position of the end surface of the second end, at least two of the reservoirs are recessed on the end surface of the second end, and the at least two reservoirs are spaced apart along the circumference of the columnar protrusion.

7. An atomising core according to claim 6, characterised in that the porous matrix interior and/or the columnar projections interior have/have a microporous structure for adsorbing and storing an aerosol-forming substrate, which microporous structure is capable of transporting the aerosol-forming substrate stored in the porous matrix interior and/or the columnar projections interior to the atomising surface.

8. The atomizing core according to any one of claims 1 to 7, wherein the heat-generating member is a heat-generating line, and the heat-generating line is bonded to the atomizing surface.

9. The atomizing core of claim 8, wherein the heating lines are arranged in an elliptical parallel line configuration.

10. A nebuliser for an aerosol-generating device, comprising an atomising core according to any of claims 1 to 9.

11. An aerosol generating device comprising an atomising core according to any of claims 1 to 9 or an atomiser according to claim 10.