CN114903207A - Atomizers, resistive pastes, heating elements and aerosol generating devices - Google Patents

Abstract

The application discloses an atomizer, a resistance paste, a heating assembly and an aerosol generating device; wherein, the atomizer includes: a reservoir chamber for storing a liquid substrate; a porous body in fluid communication with the reservoir to draw in the liquid matrix; the porous body comprises an atomization surface; a resistive heating track formed on the atomizing surface for heating at least a portion of the liquid substrate in the porous body to generate an aerosol; the resistive heating traces comprise an iron silicon alloy. The atomizer generates aerosol by heating and vaporizing the liquid matrix in the porous body by adopting the resistance heating track taking the iron-silicon alloy as the functional phase, has a proper resistance temperature coefficient, and does not contain heavy metal.

Description

Translated fromChinese

雾化器、电阻浆料、加热组件及气溶胶生成装置Atomizers, resistive pastes, heating elements and aerosol generating devices

技术领域technical field

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。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.

背景技术Background technique

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。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.

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。Examples of such products are nebulizing devices, which 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 component to vaporize the liquid. The heating component 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.

发明内容SUMMARY OF THE INVENTION

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：An embodiment of the present application provides an atomizer for atomizing a liquid substrate to generate an aerosol for inhalation; including:

储液腔，用于存储液体基质；Liquid storage chamber for storing liquid matrix;

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；a porous body, in fluid communication with the liquid storage chamber to absorb the liquid substrate; the porous body includes an atomizing surface;

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。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.

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。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 an aerosol, which has a suitable resistance temperature coefficient and does not contain heavy metals.

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。In a preferred implementation, the resistance heating track has a temperature coefficient of resistance of 900-3000 ppm/°C.

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％。In a preferred implementation, the mass percentage of silicon in the iron-silicon alloy of the resistance heating track ranges from 3 to 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。In a preferred implementation, the resistive heating traces do not contain any of nickel, chromium or tungsten.

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％。In a preferred implementation, the mass percentage of the iron-silicon alloy in the resistance heating track is 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SiO₂、Al₂O₃、MgO、CaO或B₂O₃中的至少一种。In a preferred implementation, the resistance heating track further includes a glass phase composition, and the glass phase composition includes at least one of SiO₂ , Al₂ O₃ , MgO, CaO or B₂ O₃ .

本申请的又一个实施例还提出一种加热组件，包括：Another embodiment of the present application also provides a heating assembly, comprising:

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。An electrically insulating substrate, and a resistive heating trace formed on the electrically insulating substrate; the resistive heating trace comprising an iron-silicon alloy.

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。In a preferred implementation, the electrically insulating matrix comprises a porous body. More preferably, the porous body comprises a porous ceramic body.

本申请的又一个实施例还提出一种电阻浆料，包括：Yet another embodiment of the present application also provides a resistance paste, comprising:

铁硅合金；Iron silicon alloy;

玻璃相成分；glass phase composition;

液体有机助剂，该液体有机助剂至少包括有机溶剂。The liquid organic auxiliary agent includes at least an organic solvent.

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％。In a preferred implementation, it includes: 70-90 wt % of iron-silicon alloy, 4-14 wt % of glass phase, and 5-20 wt % of liquid organic additives.

在优选的实施中，所述玻璃相成分包括SiO₂、Al₂O₃、MgO、CaO或B₂O₃中的至少一种。In a preferred implementation, the glass phase composition includes at least one of SiO₂ , Al₂ O₃ , MgO, CaO or B₂ O₃ .

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。In a preferred implementation, 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%.

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。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.

申请的又一个实施例还提出一种气溶胶生成装置，包括：Yet another embodiment of the application also proposes an aerosol generating device, comprising:

腔室，被配置为接收气溶胶生成制品；a chamber configured to receive the aerosol-generating article;

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。A resistive heater for heating the aerosol-generating article; the resistive heater includes an electrically insulating substrate, and a resistive heating track formed on the electrically insulating substrate; the resistive heating track includes an iron-silicon alloy.

附图说明Description of drawings

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。One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute limitations of the embodiments, and elements with the same reference numerals in the drawings are denoted as similar elements, Unless otherwise stated, the figures in the accompanying drawings do not constitute a scale limitation.

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；1 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application;

图2是图1中雾化器一个视角的剖面示意图；Fig. 2 is a schematic cross-sectional view of the atomizer in Fig. 1 from a viewing angle;

图3是图2中加热组件一个视角的结构示意图；FIG. 3 is a schematic structural diagram of a viewing angle of the heating assembly in FIG. 2;

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；Fig. 4 is an electron microscope scanning diagram of a part of the resistance heating track of a prepared heating assembly;

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；Fig. 5 is an energy spectrogram of a single point of the resistance heating trajectory of a prepared heating element;

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；6 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application;

图7是图6中电阻加热器的一个实施例的结构示意图。FIG. 7 is a schematic structural diagram of an embodiment of the resistance heater in FIG. 6 .

具体实施方式Detailed ways

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。In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific embodiments.

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。The present application proposes an aerosol generating device, as shown in FIG. 1 , including anatomizer 100 that stores a liquid substrate and vaporizes it to generate an aerosol, and apower supply assembly 200 that supplies power to theatomizer 100 .

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。In an optional implementation, as shown in FIG. 1 , thepower supply assembly 200 includes areceiving cavity 270 disposed at one end along the length direction for receiving and accommodating at least a part of theatomizer 100 . When a part is received and accommodated in thepower supply assembly 200 , it forms an electrical connection with theatomizer 100 to supply power to theatomizer 100 . At the same time, thenebulizer 100 can be removed from thereceiving chamber 270 for easy replacement and independent storage.

在图1中，雾化器100包括：In Figure 1, thenebulizer 100 includes:

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。Theliquid storage chamber 12 for storing the liquid substrate, and theheating assembly 30 for sucking the liquid substrate and heating and vaporizing it to generate an aerosol.

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：More specifically, FIG. 2 shows a schematic structural diagram of an embodiment of theatomizer 100 in FIG. 1 , including:

主壳体10；main casing 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；The suction mouth A is formed on the upper end of themain casing 10, and is used for the user to suck aerosol;

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；Thesmoke output pipe 11 extends along the longitudinal direction of themain casing 10 and is used for outputting aerosol to the mouth A of the suction nozzle;

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；Theliquid storage cavity 12, which is defined by the fluegas output pipe 11 and the inner wall of themain casing 10, is used for storing the liquid matrix;

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；Theheating assembly 30 is in fluid communication with theliquid storage chamber 12 along the upper side of the longitudinal direction of theatomizer 100. As shown by the arrow R1 in FIG. 1, the liquid matrix of theliquid storage chamber 12 flows to theheating assembly 30 to be absorbed; The atomizingsurface 310 facing away from theliquid storage chamber 12, the atomizingsurface 310 is used to heat the liquid matrix and release the generated aerosol;

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；Theatomization chamber 22, which is defined by theatomization surface 310, is used for accommodating the released aerosol; and theatomization chamber 22 is in airflow communication with thesmoke output pipe 11, thereby outputting the aerosol to thesmoke output pipe 11 ;

电极柱21，用于为加热组件30供电。Theelectrode column 21 is used to supply power to theheating assembly 30 .

进一步参见图3所示，加热组件30的具体构造包括：Further referring to Fig. 3, the specific structure of theheating assembly 30 includes:

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；Theporous body 31, in some embodiments, theporous body 31 can be made of hard capillary structures such as porous ceramics, porous glass ceramics, porous glass; face310;

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。Theresistance heating track 32 is formed on theatomized 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 bound.

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。In other variation implementations, theporous body 31 may also be a flat plate, a concave shape with a concave cavity facing the upper surface of theliquid storage cavity 12, or an iso-arched shape with an arched structure on one side of theliquid storage cavity 12, etc. .

在其他的优选实施中，电阻加热轨迹32是图案化的轨迹。In other preferred implementations, the resistive heating traces 32 are patterned traces.

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。In other preferred implementations, the resistive heating traces 32 are printed or printed.

在其他的优选实施中，电阻加热轨迹32是平面形形状的。In other preferred implementations, the resistive heating traces 32 are planar in shape.

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。In other preferred implementations, the resistive heating traces 32 are traces extending in meandering, meandering, or the like.

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。In other preferred implementations, the resistive heating traces 32 have a thickness of about 60-100 μm.

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。After assembly, the electrode posts 21 abut against both ends of theresistive heating track 32 to form a conductive connection, thereby supplying power to theresistive heating track 32 .

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：Yet another embodiment of the present application also proposes a resistive paste for preparing the above resistive heating traces 32, including:

功能相：铁硅合金粉；Functional phase: iron-silicon alloy powder;

玻璃相：包括SiO₂、Al₂O₃、MgO、CaO和B₂O₃等氧化物中的至少一种；Glass phase: including at least one of oxides such as SiO₂ , Al₂ O₃ , MgO, CaO and B₂ O₃ ;

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。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 be further added Mixing of additives, etc., to enhance and assist the performance of the slurry.

例如，液体有机助剂在实施中：For example, liquid organic additives in practice:

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；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.;

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；The dispersing agent makes the above functional phase and the glass phase disperse uniformly in the slurry; usually the dispersing agent adopts polyethylene wax, paraffin wax, etc.;

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；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.;

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。Thixotropic agents can improve the anti-sagging properties of the slurry, usually hydrogenated castor oil, polyvinyl alcohol, etc. can be used.

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％。In a preferred implementation, 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.

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。In a preferred implementation, the particle size of the iron-silicon alloy powder and/or the powder of the glass phase added to the resistance paste is between 0.1 and 200 μm, which is favorable for their uniform dispersion. In an optional implementation, the particle size in the above range can be obtained by using water quenching ball milling or the like on the raw material.

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。In a more preferred implementation, the resistive paste may further include: a pore-forming agent within 1% by mass. In practice, 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.

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：The present application further proposes a method for preparing theheating assembly 30 by using the above resistance paste, including:

S10，获取多孔体31；S10, obtaining theporous body 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；S20, forming the precursor of theresistance heating track 32 on the surface of theatomized surface 310 of theporous body 31 with the resistance paste by screen printing or spraying;

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。S30 , sintering or heat-treating theporous body 31 with the precursor of theresistance heating track 32 to solidify the precursor of theresistance heating track 32 to form theresistance heating track 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％。During the sintering or heat treatment in step S30 , the liquid organic additives and pore-forming agents are decomposed and volatilized, and then do not remain in theresistance heating track 32 . Usually 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 theresistance heating track 32 after final sintering is 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。Of course, in a preferred implementation, in order to prevent the functional phase of the iron-silicon alloy from being oxidized during the sintering process, the sintering process is carried out in a reducing atmosphere.

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。Theresistance 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 theporous body 31 to generate aerosol when the power is supplied.

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。Further in a more preferred implementation, by adjusting the composition of the functional phase, for example, reasonably supplementing and increasing the metal platinum/palladium with a high temperature coefficient of resistance, and adjusting the content of silicon in the iron-silicon alloy accordingly, for example, the mass percentage of silicon is controlled to be 3~ 15%, so that the resistance temperature coefficient of the finally preparedresistance heating track 32 can be adjusted within a desired range, for example, the desired range is controlled to be 900-3000 ppm/°C. Furthermore, in use, the temperature of theresistive heating track 32 can be determined by detecting the temperature coefficient of resistance of theresistive heating track 32 .

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。Further, in order to facilitate the demonstration of the performance consistency and stability of the heating assembly prepared by the above method, the prepared heating assembly is exemplified and the results are described below through specific embodiments.

实施例1Example 1

S10，获取平均孔隙率为60％的图2和图3所示的多孔体31；S10, obtaining theporous body 31 shown in FIG. 2 and FIG. 3 with an average porosity of 60%;

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，S20, prepare a resistance paste: 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%; wherein,

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；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 μm;

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；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 theatomized surface 310 of theporous body 31 by screen printing to form theresistance heating track 32 in the shape of FIG. 3 Precursor; printing thickness 60μm, printed circuit width of track 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。S40, sintering theporous body 31 having the precursor of theresistance 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.

实施例2Example 2

S10，获取平均孔隙率为60％的图2和图3所示的多孔体31；S10, obtaining theporous body 31 shown in FIG. 2 and FIG. 3 with an average porosity of 60%;

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，S20, prepare a resistance paste: the iron-silicon alloy powder in the resistance paste accounts for 78wt%, the glass phase is 5wt%, the pore-forming agent is 1wt%, and the liquid organic auxiliary agent is 16wt%; wherein,

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；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 μm;

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；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 theatomized surface 310 of theporous body 31 by screen printing to form theresistance heating track 32 in the shape of FIG. 3 Precursor; printing thickness 60μm, printed circuit width of track 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。S40, sintering theporous body 31 having the precursor of theresistance 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.

实施例3Example 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。In this Example 3, the same method steps as in Example 1 were adopted. In the preparation of the resistance paste, 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 %. The heating element of Example 3.

实施例4Example 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。In this 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 component of this Example 3 was prepared and obtained.

实施例5Example 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。In this 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.

对以上制备的加热组件进行各项验证，具体包括：Carry out various verifications on the heating components prepared above, including:

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：S50: Detection of the temperature coefficient of resistance: Theresistance heating track 32 in the heating assembly prepared by the above embodiments measures the temperature coefficient of resistance, and the results are as follows:

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。S60, scan theresistance heating track 32 of the heating component sample prepared in Example 2 with an electron microscope, and obtain its microscopic morphology as shown in FIG. 4; at the same time, perform an energy spectrum analysis on the central site in FIG. 4, and the obtained energy spectrum diagram is shown in FIG. 4 . shown in Figure 5.

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：Further, the composition ratio of each element obtained by energy spectrum analysis in Figure 5 is shown in the following table:

元素element原子数百分比/％Atomic percentage/%重量百分比％% by weightFeFe38.6538.6561.5461.54OO32.1932.1914.6814.68SiSi27.9427.9422.3722.37CaCa1.231.231.401.40

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。In the proportion of each element in the energy spectrum analysis shown in Figure 5 and the above table, it is mainly iron and silicon; in the percentage of the above elements, part of the silicon oxide provided by the glass phase makes the content of silicon at the analysis site. The content of silicon is greater than that described in the functional phase, but the functional provision is still an iron-silicon alloy. At the same time, it can be seen from the color distinction in Figure 4 that the functional elements in the measured area are all iron and silicon.

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：Another embodiment of the present application also proposes an aerosol generating device, the structure of which is shown in FIG. 4 and includes:

腔室，用于接收固体气溶胶生成制品A；a chamber for receiving the solid aerosol-generating article 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；aresistive heater 30a extending at least partially within the chamber to heat the aerosol-generating article A to generate an aerosol for suction;

电芯10a，用于供电；Thebattery cell 10a is used for power supply;

控制器20a，在电芯10a和电阻加热器30a之间引导电流。Thecontroller 20a conducts current between thecells 10a and theresistance heater 30a.

其中，电阻加热器30a的结构参见图5所示，包括：The structure of theresistance heater 30a is shown in FIG. 5, including:

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，The electrically insulatingsubstrate 31a, which can be made of ceramic, rigid plastic, surface insulating metal, polyimide, etc., is 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 alternative implementations, the electrically insulatingsubstrate 31a may also have a tubular shape surrounding the chamber/aerosol-generating article A; and,

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。Theresistance heating track 32a combined on the electrically insulatingsubstrate 31a by printing or deposition, etc.; wherein, theresistance heating track 32a is prepared by using the above resistance paste made of iron-silicon alloy as the functional phase. In use, theresistance 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 theresistance heater 30a can be measured.

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，但并不限于本说明书所描述的实施例，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。It should be noted that the description of the present application and the accompanying drawings provide preferred embodiments of the present application, but are not limited to the embodiments described in the present specification. Improvements or changes are made according to the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present application.

Claims (13)

1. An atomizer for atomizing a liquid substrate to produce an aerosol for inhalation; it is characterized by comprising:

a reservoir chamber for storing a liquid substrate;

a porous body in fluid communication with the reservoir chamber to draw up a liquid substrate; the porous body comprises an atomizing surface;

a resistive heating track formed on the atomizing surface for heating at least a portion of the liquid substrate within the porous body to generate an aerosol; the resistive heating trace comprises an iron silicon alloy.

2. The atomizer of claim 1, wherein said resistive heating trace has a temperature coefficient of resistance ranging from 900 to 3000ppm/° c.

3. An atomiser according to claim 1 or claim 2, wherein the resistive heating track comprises 3 to 15% by mass silicon in the ferrosilicon alloy.

4. The atomizer of claim 1 or 2, wherein said resistive heating trace does not comprise any of nickel, chromium, or tungsten.

5. The atomizer of claim 1 or 2, wherein the percentage by mass of ferrosilicon in said resistive heating trace is from 80 to 95%.

6. The atomizer of claim 5, wherein said resistive heating trace further comprises a glass phase composition comprising SiO₂ 、Al₂ O₃ MgO, CaO or B₂ O₃ At least one of (1).

7. A resistor paste, comprising:

an iron-silicon alloy;

a glass phase component;

a liquid organic adjuvant comprising at least an organic solvent.

8. The resistor paste of claim 7, comprising: 70-90 wt% of iron-silicon alloy, 4-14 wt% of glass phase and 5-20 wt% of liquid organic auxiliary agent.

9. The electrical resistance paste of claim 7 or 8, wherein said paste is applied to a substrateThe glass phase component comprises SiO₂ 、Al₂ O₃ MgO, CaO or B₂ O₃ At least one of (a).

10. A heating assembly, comprising:

an electrically insulating substrate, and a resistive heating trace formed on the electrically insulating substrate; the resistive heating trace comprises an iron silicon alloy.

11. The heating assembly of claim 10, wherein the electrically insulating matrix comprises a porous body.

12. An aerosol-generating device comprising an atomiser for atomising a liquid substrate to generate an aerosol, and a power supply component for powering the atomiser; characterized in that the atomizer comprises the atomizer of any one of claims 1 to 6.

13. An aerosol-generating device, comprising:

a chamber configured to receive an aerosol-generating article;

a resistive heater for heating the aerosol-generating article; the resistive heater includes an electrically insulating substrate, and a resistive heating trace formed on the electrically insulating substrate; the resistive heating trace comprises an iron silicon alloy.

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