CN112841745A - Atomizing core based on microporous ceramic matrix and electronic cigarette comprising atomizing core - Google Patents
Atomizing core based on microporous ceramic matrix and electronic cigarette comprising atomizing core Download PDFInfo
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- CN112841745A CN112841745A CN202110227271.0A CN202110227271A CN112841745A CN 112841745 A CN112841745 A CN 112841745A CN 202110227271 A CN202110227271 A CN 202110227271A CN 112841745 A CN112841745 A CN 112841745A
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- Prior art keywords
- atomizing core
- microporous ceramic
- metal fiber
- porous metal
- fiber felt
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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Abstract
An atomizing core based on a microporous ceramic matrix and an electronic cigarette comprising the atomizing core are provided, wherein the atomizing core based on the microporous ceramic matrix comprises the microporous ceramic matrix; the porous metal fiber felt heating body is arranged at the bottom of the microporous ceramic substrate; and the electrode is connected with the porous metal fiber felt heating body. The novel atomizing core is formed by compounding a heating atomizing element and microporous ceramic and sintering at high temperature; the microporous ceramic is used as a structural member for fixing a heating element and has the functions of liquid guiding and storing; the atomizing component that generates heat, stock solution, drain, and atomizing efficient reduces the carbon deposit, and user experience degree is good.
Description
Technical Field
The invention relates to the field of electronic cigarettes, in particular to an atomizing core based on a microporous ceramic matrix and an electronic cigarette containing the atomizing core.
Background
Since the appearance of electronic cigarettes in 2003, the pursuit based on the aspects of the electronic cigarettes, such as eating safety and taste, has prompted continuous innovation in related technologies. The atomizing core is used as a core component of the electronic cigarette, and plays a decisive role in aerosol safety and eating mouthfeel of the electronic cigarette.
The existing electronic cigarette atomization core is divided into a cotton core and a ceramic core. For ceramic atomizing cores, it is common to include a microporous ceramic substrate and a heating circuit. Heating circuits currently include many forms such as resistance wires, etched mesh sheets, and thick film printed circuits. The heating circuits in the forms are all solid heating bodies, heat generated by the heating circuits is transferred to the microporous ceramic during atomization, then a thermal gradient is formed by taking the solid heating bodies as centers, and the microporous ceramic body heats and vaporizes atomized liquid to form atomized aerosol. The invention discloses a novel porous metal microporous ceramic atomizing core with a porous metal fiber felt as a heating atomizing element, wherein an atomizing interface is the porous metal fiber felt, so that the atomizing efficiency can be improved, and the taste can be improved.
The atomizing interface of the existing micropore ceramic atomizing core is on the micropore ceramic at the periphery of the heating wire. The working heating circuit generates heat, the heat is transferred to the peripheral microporous ceramic, and the microporous ceramic generates more useless work by heating atomized liquid and transferring twice, most of power is lost, so that the atomization efficiency is low, the explosive force is weak during atomization, and the experience feeling is influenced; and moreover, the reduction degree of the atomized smoke oil is low due to the limitation of the structure of the microporous ceramic material. In addition, the microporous ceramic has the characteristics of a preparation process, blind holes exist in the microporous ceramic, smoke oil in the blind holes cannot be vaporized at high temperature, and smoke oil cracking, chain aggregation, carbonization and mouth feeling change can occur in an overheated state.
Disclosure of Invention
In view of the above, one of the main objectives of the present invention is to provide an atomizing core based on a microporous ceramic substrate and an electronic cigarette containing the atomizing core, so as to at least partially solve at least one of the above technical problems.
In order to achieve the above object, as one aspect of the present invention, there is provided an atomizing core based on a microporous ceramic substrate, comprising:
a microporous ceramic substrate;
the porous metal fiber felt heating body is arranged at the bottom of the microporous ceramic substrate; and
and the electrode is connected with the porous metal fiber felt heating body.
As another aspect of the invention, an electronic cigarette is also provided, which contains the atomizing core as described above.
Based on the technical scheme, compared with the prior art, the atomizing core based on the microporous ceramic matrix and the electronic cigarette containing the atomizing core have at least one or part of the following advantages:
1. the novel atomizing core is formed by compounding a heating atomizing element and microporous ceramic and sintering at high temperature; the microporous ceramic is used as a structural member for fixing a heating element and has the functions of liquid guiding and storing; the heating atomization element generates heat, stores liquid and conducts liquid, the atomization efficiency is high, and the user experience is good;
2. the novel atomization core has the advantages that the atomization interface is the porous metal fiber felt, micropores in the porous metal fiber felt are through holes, atomized liquid can be fully atomized, heat exchange is rapid, the temperature of the heating element is effectively and rapidly reduced, the heating element is prevented from exceeding critical heat flow to form dry burning to generate harmful gas, and the safety of atomized aerosol is improved; meanwhile, the formation of carbon deposition on an atomization interface is reduced, and the taste consistency is good;
3. the heating element is a porous metal fiber felt; the porous metal fiber felt can heat and absorb liquid when working, can quickly heat and atomize atomized substances with different viscosities, can quickly atomize paste substances at normal temperature, and does not need preheating.
Drawings
FIG. 1 is a schematic perspective view of a novel atomizing core in an embodiment of the present invention;
fig. 2 is a schematic front view of the novel atomizing core in the embodiment of the present invention.
Description of reference numerals:
1-a microporous ceramic matrix; 2-porous metal fibrofelt heating element; 3-oil guide grooves; 4-electrodes.
Detailed Description
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and examples to assist those skilled in the art in fully understanding the objects, features and effects of the present invention. Exemplary embodiments of the present invention are illustrated in the drawings, but it should be understood that the present invention can be embodied in other various forms and should not be limited to the embodiments set forth herein. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention. In addition, the embodiments of the present invention provided below and the technical features in the embodiments may be combined with each other in an arbitrary manner.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like, when used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.
The invention discloses an atomizing core based on a microporous ceramic matrix, which comprises:
a microporous ceramic substrate;
the porous metal fiber felt heating body is arranged at the bottom of the microporous ceramic substrate; and
and the electrode is connected with the porous metal fiber felt heating body.
In some embodiments of the present invention, the porous metal fiber felt heating element and the electrode are integrally connected by welding.
In some embodiments of the invention, the microporous ceramic matrix has a porosity of 40% to 60%, for example 40%, 45%, 50%, 55%, 60%.
In some embodiments of the present invention, the atomizing core further includes an oil guiding groove disposed on the top of the microporous ceramic substrate;
in some embodiments of the present invention, the oil guide groove has a depth of 0 to 3mm, wherein the oil guide groove may have a depth of 0, for example, 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm, 2.8mm, 3mm, etc.
In some embodiments of the present invention, the porous metal fiber mat heat-generating body has a pore diameter of 3 to 100 micrometers, for example, 3 micrometers, 4 micrometers, 8 micrometers, 12 micrometers, 20 micrometers, 30 micrometers, 50 micrometers, 80 micrometers, 100 micrometers, or the like.
In some embodiments of the present invention, the pores of the porous metal fiber felt heat-generating body are through holes.
In some embodiments of the present invention, bosses are disposed at two ends of the bottom of the microporous ceramic substrate, and the bosses are located at two sides of the porous metal fiber felt heating element.
In some embodiments of the present invention, the boss is in rounded transition with the bottom of the microporous ceramic substrate.
In some embodiments of the present invention, the porous metal fiber felt heater is embedded in the bottom of the microporous ceramic substrate.
In some embodiments of the present invention, the porous metal fiber felt heating element is embedded to a depth of 0.1 to 2.0mm, for example, 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1mm, 1.5mm, 1.8mm, 2.0mm, or the like.
In some embodiments of the invention, the distance between the top of the porous metal fiber felt heating element and the bottom of the oil guiding groove is 0.5 to 2.5mm, such as 0.5mm, 0.8mm, 1mm, 1.5mm, 1.8mm, 2mm, 2.5mm, etc.
The invention also discloses an electronic cigarette which is internally provided with the atomizing core.
The technical solution of the present invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings. It should be noted that the following specific examples are given by way of illustration only and the scope of the present invention is not limited thereto.
As shown in fig. 1-2, the microporous ceramic substrate-based atomizing core of the present embodiment includes a microporous ceramic substrate 1, a porous metal fiber mat heating element 2, an oil guide groove 3, and an electrode 4. The atomizing core is formed by sintering a microporous ceramic substrate 1 and a heating atomizing element at a high temperature; the heating atomization element is composed of a porous metal fiber felt heating body 2 and an electrode 4, and the porous metal fiber felt heating body 2 and the electrode 4 are connected into a whole through welding. The heating atomization element is embedded in one surface of the microporous ceramic substrate 1, and the porous metal fiber is used as an electric heating atomization element, so that the heating atomization can be realized, liquid can be guided, and the atomization efficiency is improved. The microporous ceramic is used for fixing the heating atomization element and has the functions of storing liquid, supplementing liquid and balancing a temperature field; the novel atomization core can reduce carbon deposition, well reduce the taste of atomized liquid and improve the user experience.
The microporous ceramic matrix 1 is a porous ceramic material with open pore diameter and high open porosity, which is prepared by taking high-quality raw materials such as alumina, silicon carbide and the like as main materials, adding a pore-forming agent, and performing molding and special high-temperature sintering processes. The porosity of the microporous ceramic matrix 1 is controlled to be 40-60%. The microporous ceramic substrate may be a rectangular parallelepiped, a cylinder, or the like, but is not limited thereto. The micro-porous ceramic substrate is provided with an oil guide groove, the depth of the oil guide groove is controlled to be 0-3 mm, and the depth of the oil guide groove can be 0.
The micropore ceramic substrate has the functions of fixing the heating atomization element and having the functions of guiding, storing and locking liquid.
The main body material of the porous metal fibrofelt heating body 2 is composed of metal fibers (including but not limited to stainless steel metal fibers, iron-chromium-aluminum metal fibers, titanium-nickel metal fibers, hastelloy fibers, other conductive metal fibers and the like). The material is a porous metal fiber felt formed by processes of chopping, paving, laminating and high-temperature sintering.
Diameter range of the metal fiber felt: phi 2 microns to phi 50 microns.
Thickness range of the metal fiber felt: 0.1mm to 1 mm.
Pore size range of metal fiber felt: phi 3 microns to 100 microns.
The metal fiber felt is a porous material and can be fully contacted with atomized liquid to form a strong heat exchange system, so that the atomization efficiency is greatly improved. The pores formed by the metal fiber felt are all through holes, so that the phenomenon of hole blocking caused by liquid dry burning can be avoided, and the formation of carbon deposition is avoided. The oil atomization efficiency is higher for the through hole, the working temperature of the heating body can be effectively reduced, the temperature of the heating circuit is not increased to be higher than the critical heat flow due to the deterioration of the heat transfer working condition, and the cracked atomized liquid generates harmful substances.
The porous metal fibrofelt heating element 2 is embedded on the lower surface of the microporous ceramic substrate 1, and the shallow embedding depth is controlled to be 0.1-2.0 mm. The distance between the upper end surface of the porous metal fiber felt heating body 2 and the bottom surface of the oil guide groove 3 on the microporous ceramic substrate is controlled to be 0.5-2.5 mm.
The atomizing liquid of novel atomizing core when using in this embodiment flows in and leads oil groove 3, under micropore clearance capillary action in the micropore ceramic base member 1, leads 3 from leading the oil groove with the atomizing liquid and goes into inside porous metal fiber felt heat-generating body 2 of micropore ceramic base member 1 below, and porous metal fiber felt heat-generating body 2 generates heat and atomizes self absorbent atomizing liquid. According to the micro-pipeline film boiling model, during boiling and vaporization, bubbles are broken and vaporized at the interface, negative pressure is formed at the interface, and liquid in the micro-pipeline is continuously supplemented to the vaporization interface under the action of pressure difference to consume heat, vaporize and boil to form aerosol. The atomizing core can adjust the liquid supply speed by adjusting the porosity of the microporous ceramic, design a proper temperature field of the heating element, and control the particle size distribution and the smoke quantity of the atomized aerosol by matching with proper output power to achieve the optimal reduction degree. Simultaneously, porous metal fiber felt heat-generating body 2 can imbibition stock solution, and the heat of the output of generating heat during the circular telegram can heat surrounding substance rapidly, and the atomizing liquid that is fit for different viscosity all can atomize fast, need not preheat paste material yet, improves atomization efficiency.
It should be noted that, although the invention has been shown and described with reference to the specific exemplary embodiments thereof, it should be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, and it is intended that the invention encompass such changes and modifications as fall within the scope of the claims and the equivalent technical scope of the invention.
In particular, various combinations and/or combinations of features recited in the various embodiments and/or claims of the present invention can be made without departing from the spirit and teachings of the invention, even if such combinations or combinations are not explicitly recited in the present invention. All such combinations and/or associations are within the scope of the present invention. The scope of the invention should, therefore, be determined not with reference to the appended claims, but should instead be determined with reference to the following claims.
Claims (10)
1. An atomizing core based on a microporous ceramic matrix, comprising:
a microporous ceramic substrate;
the porous metal fiber felt heating body is arranged at the bottom of the microporous ceramic substrate; and
and the electrode is connected with the porous metal fiber felt heating body.
2. The atomizing core of claim 1,
the porous metal fiber felt heating body and the electrode are connected into a whole by welding.
3. The atomizing core of claim 1,
the microporous ceramic matrix has a porosity of 40% to 60%.
4. The atomizing core of claim 1,
the atomizing core also comprises an oil guide groove arranged at the top of the microporous ceramic substrate;
the depth of the oil guide groove is 0-3 mm.
5. The atomizing core of claim 1,
the diameter of the pore of the porous metal fiber felt heating body is 3-100 microns.
6. The atomizing core of claim 1,
the pores of the porous metal fiber felt heating body are through holes.
7. The atomizing core of claim 1,
bosses are arranged at two ends of the bottom of the microporous ceramic substrate and are positioned at two sides of the porous metal fiber felt heating body.
8. The atomizing core of claim 1,
the porous metal fiber felt heating body is embedded at the bottom of the microporous ceramic matrix.
9. The atomizing core of claim 1,
the embedding depth of the porous metal fiber felt heating body is 0.1-2.0 mm;
the distance between the top of the porous metal fiber felt heating body and the bottom of the oil guide groove is 0.5-2.5 mm.
10. An electronic cigarette incorporating an atomizing core as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110227271.0A CN112841745A (en) | 2021-03-01 | 2021-03-01 | Atomizing core based on microporous ceramic matrix and electronic cigarette comprising atomizing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110227271.0A CN112841745A (en) | 2021-03-01 | 2021-03-01 | Atomizing core based on microporous ceramic matrix and electronic cigarette comprising atomizing core |
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| CN112841745A true CN112841745A (en) | 2021-05-28 |
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| CN202110227271.0A Pending CN112841745A (en) | 2021-03-01 | 2021-03-01 | Atomizing core based on microporous ceramic matrix and electronic cigarette comprising atomizing core |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956861A (en) * | 2022-06-29 | 2022-08-30 | 深圳市吉迩科技有限公司 | Porous ceramic atomizing core, preparation method thereof and aerosol generating device |
| WO2023029870A1 (en) * | 2021-08-31 | 2023-03-09 | 常州市派腾电子技术服务有限公司 | Atomizing assembly, atomizer and aerosol generating apparatus |
| WO2024016437A1 (en) * | 2022-07-18 | 2024-01-25 | 东莞市克莱鹏雾化科技有限公司 | Atomization sheet based on glass substrate, and atomization device |
| WO2024045181A1 (en) * | 2022-09-02 | 2024-03-07 | 深圳市锐丽科技有限公司 | Atomizing core and electronic cigarette |
-
2021
- 2021-03-01 CN CN202110227271.0A patent/CN112841745A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029870A1 (en) * | 2021-08-31 | 2023-03-09 | 常州市派腾电子技术服务有限公司 | Atomizing assembly, atomizer and aerosol generating apparatus |
| CN114956861A (en) * | 2022-06-29 | 2022-08-30 | 深圳市吉迩科技有限公司 | Porous ceramic atomizing core, preparation method thereof and aerosol generating device |
| WO2024000915A1 (en) * | 2022-06-29 | 2024-01-04 | 深圳市吉迩科技有限公司 | Porous ceramic atomizing core and preparation method therefor, and aerosol generating device |
| WO2024016437A1 (en) * | 2022-07-18 | 2024-01-25 | 东莞市克莱鹏雾化科技有限公司 | Atomization sheet based on glass substrate, and atomization device |
| WO2024045181A1 (en) * | 2022-09-02 | 2024-03-07 | 深圳市锐丽科技有限公司 | Atomizing core and electronic cigarette |
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