WO2022166660A1 - 雾化器、电阻浆料、加热组件及气溶胶生成装置 - Google Patents

雾化器、电阻浆料、加热组件及气溶胶生成装置 Download PDF

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WO2022166660A1
WO2022166660A1 PCT/CN2022/073540 CN2022073540W WO2022166660A1 WO 2022166660 A1 WO2022166660 A1 WO 2022166660A1 CN 2022073540 W CN2022073540 W CN 2022073540W WO 2022166660 A1 WO2022166660 A1 WO 2022166660A1
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Prior art keywords
atomizer
aerosol
iron
resistance
resistive
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PCT/CN2022/073540
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English (en)
French (fr)
Inventor
张晓飞
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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Priority to EP22748939.0A priority Critical patent/EP4289300A1/en
Publication of WO2022166660A1 publication Critical patent/WO2022166660A1/zh

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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
    • A24F40/10—Devices using liquid inhalable precursors
    • 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
    • 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
    • A24F40/42—Cartridges or containers for inhalable precursors
    • 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
    • A24F40/44—Wicks
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/265—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an inorganic material, e.g. ceramic
    • 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
    • A24F40/70—Manufacture
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material

Definitions

  • the embodiments of the present application relate to the technical field of aerosol generating devices, and in particular, to an atomizer, a resistance paste, a heating component, and an aerosol generating device.
  • Smoking articles eg, cigarettes, cigars, etc.
  • Burn tobacco during use to produce tobacco smoke.
  • Attempts have been made to replace these tobacco-burning products by making products that release compounds without burning them.
  • nebulizing devices typically contain a liquid that is heated to vaporize it, resulting in an inhalable vapor or aerosol.
  • the liquid may contain nicotine and/or fragrance and/or aerosol-generating substances (eg, glycerin).
  • the known atomizing device uses a heating element to vaporize the liquid.
  • the heating element includes a porous substrate that absorbs the liquid through capillary infiltration, and a resistance heating track formed on the porous substrate.
  • the resistance heating track heats the liquid absorbed by the porous substrate to vaporize and generate gas sol.
  • the above resistance heating traces are usually prepared by nickel, chromium or tungsten, etc., and can measure the temperature through the temperature coefficient of resistance while generating heat, and there is heavy metal pollution in use.
  • An embodiment of the present application provides an atomizer for atomizing a liquid substrate to generate an aerosol for inhalation; including:
  • Liquid storage chamber for storing liquid matrix
  • porous body in fluid communication with the liquid storage chamber to absorb the liquid substrate;
  • the porous body includes an atomizing surface;
  • a resistance heating track formed on the atomizing surface, is used for heating at least part of the liquid matrix in the porous body to generate an aerosol; the resistance heating track includes an iron-silicon alloy.
  • the above atomizer uses a resistance heating track with an iron-silicon alloy as a functional phase to heat and vaporize the liquid matrix in the porous body to generate aerosol, which has a suitable resistance temperature coefficient and does not contain heavy metals.
  • the resistance heating track has a temperature coefficient of resistance of 900-3000 ppm/°C.
  • the mass percentage of silicon in the iron-silicon alloy of the resistance heating track ranges from 3 to 15%.
  • the resistive heating traces do not contain any of nickel, chromium or tungsten.
  • the mass percentage of the iron-silicon alloy in the resistance heating track is 80-95%.
  • the resistance heating track further includes a glass phase composition
  • the glass phase composition includes at least one of SiO 2 , Al 2 O 3 , MgO, CaO or B 2 O 3 .
  • Another embodiment of the present application also provides a heating assembly, comprising:
  • the electrically insulating matrix comprises a porous body. More preferably, the porous body comprises a porous ceramic body.
  • Yet another embodiment of the present application also provides a resistance paste, comprising:
  • the liquid organic auxiliary agent includes at least an organic solvent.
  • it includes: 70-90 wt % of iron-silicon alloy, 4-14 wt % of glass phase, and 5-20 wt % of liquid organic additives.
  • the glass phase composition includes at least one of SiO 2 , Al 2 O 3 , MgO, CaO or B 2 O 3 .
  • the resistive paste further includes a pore-forming agent. More preferably, the mass percentage of the pore-forming agent in the resistive paste is within 1 wt%.
  • Another embodiment of the present application also provides an aerosol generating device, including an atomizer for atomizing a liquid substrate to generate aerosol, and a power supply assembly for supplying power to the atomizer; the atomizer includes the above-mentioned atomizer.
  • an aerosol generating device comprising:
  • a chamber configured to receive the aerosol-generating article
  • a resistive heater for heating the aerosol-generating article comprising an electrically insulating substrate, and a resistive heating trace formed on the electrically insulating substrate; the resistive heating trace comprising an iron-silicon alloy.
  • FIG. 1 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application.
  • Fig. 2 is a schematic cross-sectional view of the atomizer in Fig. 1 from a viewing angle;
  • FIG. 3 is a schematic structural diagram of a viewing angle of the heating assembly in FIG. 2;
  • Fig. 4 is an electron microscope scanning diagram of a part of the resistance heating track of a prepared heating assembly
  • Figure 5 is an energy spectrogram of a single point of the resistance heating trajectory of a prepared heating assembly
  • FIG. 6 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an embodiment of the resistance heater in FIG. 6 .
  • the present application proposes an aerosol generating device, as shown in FIG. 1 , including an atomizer 100 that stores a liquid substrate and vaporizes it to generate an aerosol, and a power supply assembly 200 that supplies power to the atomizer 100 .
  • the power supply assembly 200 includes a receiving cavity 270 disposed at one end along the length direction for receiving and accommodating at least a part of the atomizer 100 .
  • a part is received and accommodated in the power supply assembly 200 , it forms an electrical connection with the atomizer 100 to supply power to the atomizer 100 .
  • the nebulizer 100 can be removed from the receiving chamber 270 for easy replacement and independent storage.
  • the nebulizer 100 includes:
  • the liquid storage chamber 12 for storing the liquid substrate, and the heating assembly 30 for sucking the liquid substrate and heating and vaporizing it to generate an aerosol.
  • FIG. 2 shows a schematic structural diagram of an embodiment of the atomizer 100 in FIG. 1 , including:
  • the suction mouth A is formed on the upper end of the main casing 10, and is used for the user to suck aerosol;
  • the smoke output pipe 11 extends along the longitudinal direction of the main casing 10 and is used for outputting aerosol to the mouth A of the suction nozzle;
  • the liquid storage cavity 12 which is defined by the flue gas output pipe 11 and the inner wall of the main casing 10, is used for storing the liquid matrix;
  • the heating assembly 30 is in fluid communication with the liquid storage chamber 12 along the upper side of the longitudinal direction of the atomizer 100. As shown by the arrow R1 in FIG. 1, the liquid matrix of the liquid storage chamber 12 flows to the heating assembly 30 to be absorbed; The atomizing surface 310 facing away from the liquid storage chamber 12, the atomizing surface 310 is used to heat the liquid matrix and release the generated aerosol;
  • the electrode column 21 is used to supply power to the heating assembly 30 .
  • the specific structure of the heating assembly 30 includes:
  • the porous body 31 in some embodiments, can be made of hard capillary structures such as porous ceramics, porous glass ceramics, porous glass; face310;
  • the resistance heating track 32 is formed on the atomized surface 310 by mixing conductive raw material powder and printing aid into a resistance paste and then sintering after printing in some implementations, so that all or most of the surface is The atomizing surfaces 320 are tightly coupled.
  • the porous body 31 may also be a flat plate, a concave shape with a concave cavity facing the upper surface of the liquid storage cavity 12, or an iso-arched shape with an arched structure on one side of the liquid storage cavity 12, etc. .
  • the resistive heating traces 32 are patterned traces.
  • the resistive heating traces 32 are printed or printed.
  • the resistive heating traces 32 are planar in shape.
  • the resistive heating traces 32 are traces extending in meandering, meandering, or the like.
  • the resistive heating traces 32 have a thickness of about 60-100 ⁇ m.
  • the electrode posts 21 After assembly, the electrode posts 21 abut against both ends of the resistive heating track 32 to form a conductive connection, thereby supplying power to the resistive heating track 32 .
  • resistive paste for preparing the above resistive heating traces 32, including:
  • Glass phase including at least one of oxides such as SiO 2 , Al 2 O 3 , MgO, CaO and B 2 O 3 ;
  • Liquid organic auxiliaries used to assist the printing/printing and sintering of the above functional phases and glass phases, at least organic solvents are included in the implementation, and thickeners, leveling agents, surfactants, dispersants, thixotropic agents can also be added. Mixing of additives, etc., to enhance and assist the performance of the slurry.
  • liquid organic additives in practice:
  • Organic solvents, thickeners, and leveling agents make the mixed slurry have proper fluidity and plasticity; in general, organic solvents include ether alcohols such as propylene glycol monomethyl ether, lactic acid esters, methyl cellosolve acetate, etc. At least one of ether-based lipids; thickeners and leveling agents can regulate the stability of the mixed slurry, and thickeners usually use dibutyl phthalate, dioctyl phthalate, etc.;
  • the dispersing agent makes the above functional phase and glass phase disperse uniformly in the slurry; usually the dispersing agent adopts polyethylene wax, paraffin wax, etc.;
  • Surfactant is used to improve the surface properties of the slurry to eliminate the bubbles formed by mixing and stirring; usually the surfactant is polysiloxane, dimethyl silicone oil, etc.;
  • Thixotropic agents can improve the anti-sagging properties of the slurry, usually hydrogenated castor oil, polyvinyl alcohol, etc. can be used.
  • the resistance paste includes the following components in each mass percentage: 70-90% of iron-silicon alloy powder, 4-14% of glass phase, and 5-20% of liquid organic additives.
  • the particle size of the iron-silicon alloy powder and/or the powder of the glass phase added to the resistor paste is between 0.1 and 200 ⁇ m, which is favorable for their uniform dispersion.
  • the particle size in the above range can be obtained by using water quenching ball milling or the like on the raw material.
  • the resistive paste may further include: a pore-forming agent within 1% by mass.
  • the pore-forming agent may be cellulose, wood fiber, short carbon fiber, etc., and the pore-forming agent is burned or decomposed into gas to escape during the sintering process, thereby forming pores.
  • the present application further proposes a method for preparing the heating assembly 30 by using the above resistance paste, including:
  • the liquid organic additives and pore-forming agents are decomposed and volatilized, and then do not remain in the resistance heating track 32 .
  • sintering or heat treatment is used in sintering furnace equipment and the like at a temperature of 900 to 1200 degrees.
  • the sintering time is controlled from 20 to 90 minutes.
  • the mass percentage of the iron-silicon alloy phase in the resistance heating track 32 after final sintering is 80-95%.
  • the sintering process is carried out in a reducing atmosphere.
  • the resistance heating track 32 formed after sintering only has the functional phase of solidified glass phase and iron-silicon alloy, and can heat the liquid matrix absorbed in the porous body 31 to generate aerosol when the power is supplied.
  • the mass percentage of silicon is controlled to be 3 ⁇ 15%, so that the resistance temperature coefficient of the finally prepared resistance heating track 32 can be adjusted within a desired range, for example, the desired range is controlled to be 900-3000 ppm/°C.
  • the temperature of the resistive heating track 32 can be determined by detecting the temperature coefficient of resistance of the resistive heating track 32 .
  • the prepared heating assembly is exemplified and the results are described below through specific embodiments.
  • the iron-silicon alloy powder in the resistance paste accounts for 75wt%, the glass phase is 10wt%, the pore-forming agent is 1wt%, and the liquid organic auxiliary agent is 14wt%;
  • the iron-silicon alloy powder contains 6.5wt% of silicon, denoted as FeSi6.5; the glass phase contains 63wt% of silicon dioxide, 15wt% of calcium oxide, and 22wt% of alumina; the liquid organic additives contain 35wt% of terpineol, Base carbitol 15wt%, 1,4-butyrolactone 6wt%, tributyl citrate 24wt%, ethyl cellulose 15wt% and hydrogenated castor oil 5wt%; The sieving is controlled at about 1 to 5 ⁇ m;
  • step S30 after the resistance paste in step S20 is subjected to the steps of stirring, three-roll grinding, filtration and defoaming, and then printing on the atomized surface 310 of the porous body 31 by screen printing to form the resistance heating track 32 in the shape of FIG. 3 Precursor; printing thickness 60 ⁇ m, printed circuit width of track 0.35mm;
  • step S40 sintering the porous body 31 with the precursor of the resistance heating track 32 after printing in step S30 in a sintering furnace in a reducing atmosphere; the sintering temperature is 1050° C. and the time is 30 minutes; after the sintering is completed, take out the product prepared in Example 1 heating element.
  • the iron-silicon alloy powder contains 10wt% silicon, denoted as FeSi10; the glass phase contains 63wt% silicon dioxide, 15wt% calcium oxide, and 22wt% alumina; the liquid organic additives contain 35wt% terpineol, butyl carbitol Alcohol 15wt%, 1,4-butyrolactone 6wt%, tributyl citrate 24wt%, ethyl cellulose 15wt% and hydrogenated castor oil 5wt%; the particle size of iron-silicon alloy powder and glass phase is controlled by sieving about 1 to 5 ⁇ m;
  • step S30 after the resistance paste in step S20 is subjected to the steps of stirring, three-roll grinding, filtration and defoaming, and then printing on the atomized surface 310 of the porous body 31 by screen printing to form the resistance heating track 32 in the shape of FIG. 3 Precursor; printing thickness 60 ⁇ m, printed circuit width of track 0.35mm;
  • step S40 sintering the porous body 31 having the precursor of the resistance heating track 32 after printing in step S30 in a sintering furnace in a reducing atmosphere; the sintering temperature is 1050° C., and the time is 30 minutes; after the sintering is completed, take out the product prepared in Example 1 heating element.
  • Example 3 the same method steps as in Example 1 were adopted.
  • the mass fraction of the functional phase iron-silicon alloy powder was 71 wt % and the mass fraction of the glass phase was 14 wt %.
  • Example 4 the same method steps as in Example 2 were adopted, and the silicon content of the functional phase iron-silicon alloy powder was adjusted to 12 wt% in the preparation of the resistance paste, and the heating element of this Example 3 was prepared and obtained.
  • Example 5 the same method steps as in Example 1 were adopted, and in the preparation of the resistance paste, the iron-silicon alloy powder accounted for 88wt%, the glass phase was 5wt%, and the liquid organic additive was 7wt%; The silicon content of the alloy powder is 3.5 wt %; the heating assembly of Example 5 is prepared and obtained according to the above steps.
  • composition ratio of each element obtained by energy spectrum analysis in Figure 5 is shown in the following table:
  • FIG. 4 Another embodiment of the present application also proposes an aerosol generating device, the structure of which is shown in FIG. 4 and includes:
  • a resistive heater 30a extending at least partially within the chamber to heat the aerosol-generating article A to generate an aerosol for suction;
  • the battery cell 10a is used for power supply
  • the controller 20a conducts current between the cells 10a and the resistance heater 30a.
  • the structure of the resistance heater 30a is shown in FIG. 5, including:
  • the electrically insulating substrate 31a can be made of ceramic, rigid plastic, surface insulating metal, polyimide, etc., for example; preferably a rigid pin-like or thin blade-like shape, which can be inserted into the aerosol-generating article A during use to heat the aerosol-generating article A; or in other implementation variations, the electrically insulating substrate 31a may also have a tubular shape surrounding the chamber/aerosol-generating article A; and,
  • the resistance heating track 32a combined on the electrically insulating substrate 31a by printing or deposition, etc.; wherein, the resistance heating track 32a is prepared by using the above resistance paste made of iron-silicon alloy as the functional phase.
  • the resistance heating track 32a does not contain heavy metals such as nickel/chromium/tungsten, and can have a temperature coefficient of resistance of 900-3000ppm/°C, so that the temperature of the resistance heater 30a can be measured.

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Abstract

一种雾化器（100）、电阻浆料、加热组件及气溶胶生成装置；雾化器（100）包括：用于存储液体基质的储液腔（12）；与储液腔（12）流体连通以吸取液体基质的多孔体（31）；多孔体（31）包括雾化面（310）；电阻加热轨迹（32）形成于雾化面（310），用于加热多孔体（31）内的至少部分液体基质生成气溶胶；电阻加热轨迹（32）包括铁硅合金。雾化器（100）采用以铁硅合金作为功能相的电阻加热轨迹（32），通过加热汽化多孔体（31）内的液体基质生成气溶胶，具有适合的电阻温度系数，并且不含重金属。

Description

雾化器、电阻浆料、加热组件及气溶胶生成装置
相关文件的交叉引用
本申请要求2021年02月06日向中国国家知识产权局递交的申请号为2021101756800，名称为“雾化器、电阻浆料、加热组件及气溶胶生成装置”的在先申请的优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本申请实施例涉及气溶胶生成装置技术领域，尤其涉及一种雾化器、电阻浆料、加热组件及气溶胶生成装置。
背景技术
烟制品(例如，香烟、雪茄等)在使用过程中燃烧烟草以产生烟草烟雾。人们试图通过制造在不燃烧的情况下释放化合物的产品来替代这些燃烧烟草的制品。
此类产品的示例为雾化装置，这些装置通常包含液体，该液体被加热以使其发生汽化，从而产生可吸入蒸汽或气溶胶。该液体可包含尼古丁和/或芳香剂和/或气溶胶生成物质(例如，甘油)。已知的雾化装置采用加热组件汽化液体，加热组件包括通过毛细浸润吸取液体的多孔基体、以及形成于多孔基体上的电阻加热轨迹，并由电阻加热轨迹对多孔基体吸取的液体加热汽化生成气溶胶。以上电阻加热轨迹通常采用镍、铬或钨等制备进而在发热的同时能通过电阻温度系数测温，在使用中存在重金属污染。
发明内容
本申请的一个实施例提供一种雾化器，用于雾化液体基质生成供吸食的气溶胶；包括：
储液腔，用于存储液体基质；
多孔体，与所述储液腔流体连通以吸取液体基质；所述多孔体包括雾化面；
电阻加热轨迹，形成于所述雾化面，用于加热所述多孔体内的至少部分液体基质生成气溶胶；所述电阻加热轨迹包括铁硅合金。
以上雾化器，采用以铁硅合金作为功能相的电阻加热轨迹加热汽化多孔体 内的液体基质生成气溶胶，既具有适合的电阻温度系数并不含有重金属。
优选的实施中，所述电阻加热轨迹具有900～3000ppm/℃的电阻温度系数。
优选的实施中，所述电阻加热轨迹的铁硅合金中硅的质量百分数介于3～15％。
优选的实施中，所述电阻加热轨迹中不含有镍、铬或钨中的任何一种。
优选的实施中，所述电阻加热轨迹中铁硅合金的质量百分数为80～95％。
优选的实施中，所述电阻加热轨迹还包括玻璃相成分，该玻璃相成分包括SiO 2、Al 2O 3、MgO、CaO或B 2O 3中的至少一种。
本申请的又一个实施例还提出一种加热组件，包括：
电绝缘基体、以及形成于所述电绝缘基体上的电阻加热轨迹；该电阻加热轨迹包括铁硅合金。
在优选的实施中，所述电绝缘基体包括多孔体。更加优选地，所述多孔体包括多孔陶瓷体。
本申请的又一个实施例还提出一种电阻浆料，包括：
铁硅合金；
玻璃相成分；
液体有机助剂，该液体有机助剂至少包括有机溶剂。
在优选的实施中，包括：铁硅合金70～90wt％、玻璃相4～14wt％、液体有机助剂5～20wt％。
在优选的实施中，所述玻璃相成分包括SiO 2、Al 2O 3、MgO、CaO或B 2O 3中的至少一种。
在优选的实施中，所述电阻浆料中还包括有造孔剂。更加优选地，电阻浆料中造孔剂的质量百分数在1wt％以内。
本申请的又一个实施例还提出一种气溶胶生成装置，包括雾化液体基质生成气溶胶的雾化器、以及为所述雾化器供电的电源组件；所述雾化器包括以上所述的雾化器。
申请的又一个实施例还提出一种气溶胶生成装置，包括：
腔室，被配置为接收气溶胶生成制品；
电阻加热器，用于加热所述气溶胶生成制品；所述电阻加热器包括电绝缘衬底、以及形成于所述电绝缘衬底上的电阻加热轨迹；该电阻加热轨迹包括铁 硅合金。
附图说明
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请一实施例提供的气溶胶生成装置的结构示意图；
图2是图1中雾化器一个视角的剖面示意图；
图3是图2中加热组件一个视角的结构示意图；
图4是一实施制备的加热组件的电阻加热轨迹局部的电镜扫描图；
图5是一实施制备的加热组件的电阻加热轨迹一位点的能谱图；
图6是本申请一实施例提供的气雾生成装置的结构示意图；
图7是图6中电阻加热器的一个实施例的结构示意图。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“上”、“下”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本说明书中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。
本申请提出一种气溶胶生成装置，可以参见图1所示，包括存储有液体基质并对其进行汽化生成气溶胶的雾化器100、以及为雾化器100供电的电源组件200。
在一个可选的实施中，比如图1所示，电源组件200包括设置于沿长度方向的一端、用于接收和容纳雾化器100的至少一部分的接收腔270，当雾化器100的至少一部分接收和容纳在电源组件200内时与雾化器100的形成电连接进而为雾化器100供电。同时，雾化器100可以从接收腔270移除，以便于更换和独立存储。
在图1中，雾化器100包括：
用于存储液体基质的储液腔12、以及吸取液体基质并加热汽化生成气溶胶的加热组件30。
进一步具体，图2示出了图1中雾化器100一个实施例的结构示意图，包括：
主壳体10；
吸嘴口A，形成于主壳体10的上端，用于供用户抽吸气溶胶；
烟气输出管11，沿主壳体10纵向方向延伸，用于向吸嘴口A输出气溶胶；
储液腔12，由烟气输出管11与主壳体10的内壁界定，用于存储液体基质；
加热组件30，沿雾化器100纵向方向的上侧与储液腔12流体连通，如图1中箭头R1所示，储液腔12的液体基质流向加热组件30上被吸收；加热组件30具有背离储液腔12的雾化面310，该雾化面310用于加热液体基质并释放生成的气溶胶；
雾化腔室22，由雾化面310界定，用于容纳释放的气溶胶；并且该雾化腔室22是与烟气输出管11气流连通的，进而将气溶胶输出至烟气输出管11；
电极柱21，用于为加热组件30供电。
进一步参见图3所示，加热组件30的具体构造包括：
多孔体31，在一些实施方式中多孔体31可由多孔陶瓷、多孔玻璃陶瓷、多孔玻璃等硬质毛细结构制成；在实施中由多孔体31背离储液腔12的一个平坦表面配置为雾化面310；
电阻加热轨迹32，在一些实施中通过导电性的原材料粉末与印刷助剂混合成电阻浆料后于印刷后烧结的方式形成在雾化面310上，从而使其全部或绝大 部分表面都与雾化面320紧密结合。
在其他的变化实施中，多孔体31还可以是平板状、朝向储液腔12的上表面具有凹腔的凹型、或者是储液腔12的一侧具有拱形结构的等拱形形状等等。
在其他的优选实施中，电阻加热轨迹32是图案化的轨迹。
在其他的优选实施中，电阻加热轨迹32是被打印或者印刷形成的。
在其他的优选实施中，电阻加热轨迹32是平面形形状的。
在其他的优选实施中，电阻加热轨迹32是呈蜿蜒、迂回等延伸的轨迹。
在其他的优选实施中，电阻加热轨迹32具有大约60～100μm的厚度。
在装配之后，电极柱21抵靠在电阻加热轨迹32的两端形成导电连接，进而为电阻加热轨迹32供电。
本申请的又一个实施例还提出一种制备以上电阻加热轨迹32的电阻浆料，包括：
功能相：铁硅合金粉；
玻璃相：包括SiO 2、Al 2O 3、MgO、CaO和B 2O 3等氧化物中的至少一种；
液体有机助剂：用于辅助以上功能相和玻璃相的印刷/打印和烧结，在实施中至少包括有机溶剂，还可以进一步增加增稠剂、流平剂、表面活性剂、分散剂、触变剂等的混合，以提升和辅助浆料的性能。
例如，液体有机助剂在实施中：
有机溶剂、增稠剂、流平剂使混合浆料具有适当流动性和可塑性；通常实施中有机溶剂有丙二醇单甲醚等醚系醇类、乳酸脂类、甲基熔纤剂乙酸酯等醚系脂类中的至少一种；增稠剂和流平剂可以调理混合浆料的稳定性，增稠剂通常采用邻苯二甲酸二丁酯、邻苯二甲酸二辛酯等；
分散剂使以上功能相和玻璃相在浆料中均匀分散；通常分散剂采用聚乙烯蜡、石蜡等等；
表面活性剂用于提升浆料的表面性能，以消除混料搅拌形成的气泡等；通常表面活性剂采用聚硅氧烷、二甲基硅油等；
触变剂提升浆料的防流挂性能，通常可以采用氢化蓖麻油、聚乙烯醇等。
在优选的实施中，电阻浆料包括各质量百分数的如下成分：铁硅合金粉70～90％、玻璃相4～14％、液体有机助剂5～20％。
在优选的实施中，电阻浆料中添加的铁硅合金粉和/或玻璃相的粉末的颗粒 粒径介于0.1～200μm，这一粒径大小对于它们的均匀分散是有利的。在可选的实施中，以上范围大小的颗粒粒径可以通过对原料采用水淬球磨等方式获得。
在更加优选的实施中，电阻浆料中还可以包括：质量百分数在1％以内的造孔剂。在实施中，造孔剂可以采用纤维素、木纤维及短碳纤维等，在烧结的过程中造孔剂被灼烧或分解成气体逸出，进而形成孔隙。
本申请进一步提出采用以上电阻浆料制备加热组件30的方法，包括：
S10，获取多孔体31；
S20，将电阻浆料通过丝网印刷或喷涂等方式，在多孔体31的雾化面310表面上形成电阻加热轨迹32前体；
S30，将带有电阻加热轨迹32前体的多孔体31进行烧结或热处理，使电阻加热轨迹32前体固化形成电阻加热轨迹32。
在步骤S30的烧结或热处理的过程中，液体有机助剂、和造孔剂会分解并挥发，而后不在电阻加热轨迹32中留存。通常烧结或热处理采用在烧结炉设备等中于900～1200度温度条件下烧结。烧结时间控制20～90min。最终烧结后的电阻加热轨迹32中铁硅合金相的质量百分数为80～95％。
当然在优选的实施中，为了防止在烧结的过程中铁硅合金的功能相被氧化，烧结的过程采用在还原性气氛下进行。
在烧结后形成的电阻加热轨迹32中，仅具有固化的玻璃相和铁硅合金的功能相，在供电时即可对多孔体31内吸取的液体基质加热生成气溶胶。
进一步在更加优选的实施中，通过调整功能相的成分，例如相应合理补充增加高电阻温度系数的金属铂/钯、以及相应调整铁硅合金的中硅的含量例如控制硅的质量百分数为3～15％，使最终制备的电阻加热轨迹32的电阻温度系数在期望范围内可调，例如期望范围控制为900～3000ppm/℃。进而在使用中，能通过检测电阻加热轨迹32的电阻温度系数确定电阻加热轨迹32的温度。
进一步为了便于对采用以上方法制备的加热组件的性能一致性和稳定性进行展示，以下通过具体实施例对制备的加热组件进行示例和结果说明。
实施例1
S10，获取平均孔隙率为60％的图2和图3所示的多孔体31；
S20，制备电阻浆料：该电阻浆料中铁硅合金粉占75wt％、玻璃相10wt％、造孔剂1wt％、液体有机助剂14wt％；其中，
铁硅合金粉中含硅6.5wt％，记为FeSi6.5；玻璃相中含有二氧化硅63wt％、氧化钙15wt％、氧化铝22wt％；液体有机助剂中含有松油醇35wt％、丁基卡必醇15wt％、1，4-丁内酯6wt％，柠檬酸三丁酯24wt％、乙基纤维素15wt％和氢化蓖麻油5wt％；铁硅合金粉和玻璃相的颗粒粒径通过过筛控制在1～5μm左右；
S30，将步骤S20的电阻浆料经过搅拌、三辊研磨、过滤及脱泡工序后，再以丝网印刷的方式在多孔体31的雾化面310印刷形成图3中形状的电阻加热轨迹32前体；印刷厚度60μm、轨迹的印刷线路宽度0.35mm；
S40，将步骤S30印刷后具有电阻加热轨迹32前体的多孔体31于还原性气氛的烧结炉中烧结；烧结温度为1050℃、时间为30min；烧结完成后取出即为该实施例1制备的加热组件。
实施例2
S10，获取平均孔隙率为60％的图2和图3所示的多孔体31；
S20，制备电阻浆料：该电阻浆料中铁硅合金粉占78wt％、玻璃相5wt％、造孔剂1wt％、液体有机助剂16wt％；其中，
铁硅合金粉中含硅10wt％，记为FeSi10；玻璃相中含有二氧化硅63wt％、氧化钙15wt％、氧化铝22wt％；液体有机助剂中含有松油醇35wt％、丁基卡必醇15wt％、1，4-丁内酯6wt％，柠檬酸三丁酯24wt％、乙基纤维素15wt％和氢化蓖麻油5wt％；铁硅合金粉和玻璃相的颗粒粒径通过过筛控制在1～5μm左右；
S30，将步骤S20的电阻浆料经过搅拌、三辊研磨、过滤及脱泡工序后，再以丝网印刷的方式在多孔体31的雾化面310印刷形成图3中形状的电阻加热轨迹32前体；印刷厚度60μm、轨迹的印刷线路宽度0.35mm；
S40，将步骤S30印刷后具有电阻加热轨迹32前体的多孔体31于还原性气氛的烧结炉中烧结；烧结温度为1050℃、时间为30min；烧结完成后取出即为该实施例1制备的加热组件。
实施例3
在该实施例3中采用与实施例1相同的方法步骤，在电阻浆料的制备中，将功能相铁硅合金粉的质量分数为71wt％、玻璃相的质量分数14wt％，制备获取该实施例3的加热组件。
实施例4
在该实施例4中采用与实施例2相同的方法步骤，在电阻浆料的制备中调 整功能相铁硅合金粉的硅含量至12wt％，制备获取该实施例3的加热组件。
实施例5
在该实施例5中采用与实施例1相同的方法步骤，在电阻浆料的制备中采用铁硅合金粉占88wt％、玻璃相5wt％、液体有机助剂7wt％；其中，功能相铁硅合金粉的硅含量为3.5wt％；按照以上步骤制备获取该实施例5的加热组件。
对以上制备的加热组件进行各项验证，具体包括：
S50：电阻温度系数检测：以上各实施例制备的加热组件中电阻加热轨迹32进行电阻温度系数的测量，结果如下表：
Figure PCTCN2022073540-appb-000001
S60，对实施例2制备的加热组件样品的电阻加热轨迹32进行电镜扫描，获取其微观形貌参见图4所示；同时对图4中中央位点进行能谱分析，获得的能谱图参见图5所示。
进一步图5中能谱分析所获得的各元素成分比例参见下表所示：
元素 原子数百分比/％ 重量百分比％
Fe 38.65 61.54
O 32.19 14.68
Si 27.94 22.37
Ca 1.23 1.40
在图5和上表所体现能谱分析的各元素的占比中，主要也是铁和硅；在以上元素的百分比中，由玻璃相提供了部分的氧化硅使分析位点的硅元素的含量 大于功能相所描述的硅的含量，但功能提供仍是铁硅合金。同时从图4的颜色区分可以看出，所测区域功能元素成分全部为铁和硅。
本申请的又一个实施例还提出一种气雾生成装置，其结构如图4所示，包括：
腔室，用于接收固体气溶胶生成制品A；
电阻加热器30a，至少部分在腔室内延伸以加热气溶胶生成制品A生成供抽吸的气溶胶；
电芯10a，用于供电；
控制器20a，在电芯10a和电阻加热器30a之间引导电流。
其中，电阻加热器30a的结构参见图5所示，包括：
电绝缘衬底31a，材质例如可以是陶瓷、刚性塑胶、表面绝缘金属、聚酰亚胺等等；优选是刚性的销钉状或薄的刀片状形状，在使用中能插入至气溶胶生成制品A内以加热气溶胶生成制品A；或者在其他的变化实施中，电绝缘衬底31a还可以呈围绕腔室/气溶胶生成制品A的管状形状；以及，
通过印刷或沉积等方式结合在电绝缘衬底31a上的电阻加热轨迹32a；其中，该电阻加热轨迹32a采用以上由铁硅合金作为功能相的电阻浆料制备获得。在使用中电阻加热轨迹32a不含有镍/铬/钨等重金属，同时能具有900～3000ppm/℃的电阻温度系数，进而可通过测量该电阻加热器30a的温度。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但是，本申请可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本申请内容的额外限制，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且，上述各技术特征继续相互组合，形成未在上面列举的各种实施例，均视为本申请说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (13)

  1. 一种雾化器，用于雾化液体基质生成供吸食的气溶胶；其特征在于，包括：
    储液腔，用于存储液体基质；
    多孔体，与所述储液腔流体连通以吸取液体基质；所述多孔体包括雾化面；
    电阻加热轨迹，形成于所述雾化面，用于加热所述多孔体内的至少部分液体基质生成气溶胶；所述电阻加热轨迹包括铁硅合金。
  2. 如权利要求1所述的雾化器，其特征在于，所述电阻加热轨迹具有900～3000ppm/℃的电阻温度系数。
  3. 如权利要求1或2所述的雾化器，其特征在于，所述电阻加热轨迹的铁硅合金中硅的质量百分数介于3～15％。
  4. 如权利要求1或2所述的雾化器，其特征在于，所述电阻加热轨迹中不含有镍、铬、或钨中的任何一种。
  5. 如权利要求1或2所述的雾化器，其特征在于，所述电阻加热轨迹中铁硅合金的质量百分数为80～95％。
  6. 如权利要求5所述的雾化器，其特征在于，所述电阻加热轨迹还包括玻璃相成分，该玻璃相成分包括SiO 2、Al 2O 3、MgO、CaO或B 2O 3中的至少一种。
  7. 一种电阻浆料，其特征在于，包括：
    铁硅合金；
    玻璃相成分；
    液体有机助剂，该液体有机助剂至少包括有机溶剂。
  8. 如权利要求7所述的电阻浆料，其特征在于，包括：铁硅合金70～90wt％、玻璃相4～14wt％、液体有机助剂5～20wt％。
  9. 如权利要求7或8所述的电阻浆料，其特征在于，所述玻璃相成分包括SiO 2、Al 2O 3、MgO、CaO或B 2O 3中的至少一种。
  10. 一种加热组件，其特征在于，包括：
    电绝缘基体、以及形成于所述电绝缘基体上的电阻加热轨迹；该电阻加热轨迹包括铁硅合金。
  11. 如权利要求10所述的加热组件，其特征在于，所述电绝缘基体包括多 孔体。
  12. 一种气溶胶生成装置，包括雾化液体基质生成气溶胶的雾化器、以及为所述雾化器供电的电源组件；其特征在于，所述雾化器包括权利要求1至6任一项所述的雾化器。
  13. 一种气溶胶生成装置，其特征在于，包括：
    腔室，被配置为接收气溶胶生成制品；
    电阻加热器，用于加热所述气溶胶生成制品；所述电阻加热器包括电绝缘衬底、以及形成于所述电绝缘衬底上的电阻加热轨迹；该电阻加热轨迹包括铁硅合金。
PCT/CN2022/073540 2021-02-06 2022-01-24 雾化器、电阻浆料、加热组件及气溶胶生成装置 WO2022166660A1 (zh)

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