WO2021000952A1 - 一种有机多孔材料在气溶胶发生装置中的用途及使用该材料的雾化器 - Google Patents

一种有机多孔材料在气溶胶发生装置中的用途及使用该材料的雾化器 Download PDF

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WO2021000952A1
WO2021000952A1 PCT/CN2020/100226 CN2020100226W WO2021000952A1 WO 2021000952 A1 WO2021000952 A1 WO 2021000952A1 CN 2020100226 W CN2020100226 W CN 2020100226W WO 2021000952 A1 WO2021000952 A1 WO 2021000952A1
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Prior art keywords
porous material
liquid
organic porous
heating element
melamine resin
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PCT/CN2020/100226
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English (en)
French (fr)
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许云书
徐中立
李永海
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深圳市合元科技有限公司
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Application filed by 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Priority to EP20834850.8A priority Critical patent/EP3995020B1/en
Priority to US17/621,706 priority patent/US20220240580A1/en
Publication of WO2021000952A1 publication Critical patent/WO2021000952A1/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
    • A24F40/40—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
    • A24F40/10—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
    • 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
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • This application relates to the field of aerosol generating devices, in particular to the use of organic porous materials in aerosol generating devices and an atomizer using the organic porous materials.
  • the device that turns the atomized liquid containing nicotine into an aerosol by means such as heating and atomizing by the atomizing core is an electronic product imitating a cigarette, and the aerosol produced has a smoke, taste and feel similar to that of a cigarette.
  • This nicotine-containing aerosol produced by atomization does not contain harmful carcinogens such as tar that are commonly present in ordinary cigarette smoke, and is considered to be a cigarette substitute that is beneficial to the health of traditional smokers.
  • this electronic device has the characteristics of good portability, no open flame, no second-hand smoke, and environmental protection, and is favored by many smokers.
  • the heating and atomization technology of aerosol generators is currently widely used in two types: 1) cotton or fiber bundles are used as the conductive liquid, and an electric heating wire is wound on it to directly heat the smoke oil to atomize it; 2) use honeycomb As the conductive liquid, ceramics are heated by electric heating wire or electric heating tape to atomize the smoke oil.
  • Cotton or fiber bundles are used as conductive liquids and have the characteristics of simple structure and good effects. They are fully affirmed by users in the open-type oil dripping large smoke atomization core. Cotton is relatively fluffy, has high oil absorption, but has poor heat resistance, with an ignition point of only 150°C, and a low compression modulus, which can easily cause large permanent deformation. It is difficult to solve the problems of oil leakage and sticky core when applied in closed pods. Fiber bundles or glass wool made of glass or special polymers have good heat resistance, but they have high density, low saturated oil absorption, and unsatisfactory liquid locking ability.
  • Porous ceramics sintered by components such as aggregates, binders and pore formers have a large number of pore structures that penetrate each other and communicate with the surface of the material. It has stable chemical properties, low thermal conductivity, high temperature and corrosion resistance, etc. Performance, to a certain extent, makes up for the performance defects of cotton and fiber bundles to conduct liquid.
  • the porous ceramic liquid conducting liquid currently used in the industry generally has problems such as low porosity and large micropore diameter.
  • the liquid absorption and guiding liquid can basically meet the design requirements, but the liquid locking ability needs to be improved, that is, it is easy to leak oil.
  • the embodiments of the present application provide an application of an organic porous material in an aerosol generating device, and the organic porous material is at least partially a melamine resin porous material.
  • the apparent density of the organic porous material is 3 ⁇ 120 ⁇ 10-3 g/cm3, preferably 4 ⁇ 12 ⁇ 10-3 g/cm3.
  • the 25% deformation compressive strength of the organic porous material is 5-30 KPa.
  • the organic porous material has a decomposition temperature higher than 300°C, preferably a decomposition temperature higher than 350°C, and more preferably a decomposition temperature higher than 400°C.
  • the open porosity of the organic porous material is greater than 60%, preferably greater than 80%, and more preferably greater than 95%.
  • the pore size range of the organic porous material is distributed such that more than 90% of the pore volume has a pore size ranging from 10 nanometers to 100 microns, preferably from 10 nanometers to 1 micron, more preferably from 10 nanometers to 100 nanometers, and even more preferably 10nm-50nm.
  • the aerosol generating device includes a heating element, and the organic porous material is used for conducting liquid to contact or be adjacent to the heating element.
  • the aerosol generating device includes a heating element, the organic porous material is used as a conductive liquid, and other porous materials are included between the organic porous material and the heating element.
  • an embodiment of the present application also provides an atomizer of an aerosol generating device, which includes:
  • the atomization core is contained in the housing, the outlet of the liquid storage bin is in communication with the liquid absorption surface of the atomization core; the atomization surface of the atomization core is in communication with the aerosol channel, and the feature is Wherein, the atomizing core is at least partially composed of a melamine resin porous material;
  • a heating element the heating element being in contact with or adjacent to the atomizing surface
  • the electrode is used to electrically connect the heating element and make the heating element receive electric power.
  • the atomizing core includes a porous ceramic and a melamine resin porous material, one of the surfaces of the porous ceramic forms the atomizing surface, and one of the surfaces of the melamine resin porous material forms the liquid absorption surface
  • the melamine resin porous material at least partially covers the porous ceramic, so that the atomized liquid enters the atomization core through the liquid absorption surface, and is conducted to the atomization surface.
  • the organic porous material is at least partially a melamine resin porous material, and the melamine resin porous material is, for example, a melamine sponge.
  • the melamine resin porous material can preferably be used as the liquid guiding material of the aerosol generating device. It is also possible to combine the melamine resin porous material with other porous materials to form a liquid-conducting material.
  • the melamine resin porous material is compounded with other materials with capillary phenomena such as non-woven fabrics and cotton to form a liquid-conducting material. It can also be stacked.
  • Melamine sponge is a material with a three-dimensional porous structure. Its porosity can be as high as 99%, and its open porosity can reach more than 95%. It also has good flame retardancy, that is, it does not burn after contact with open flames. The fire can extinguish itself. Melamine resin decomposes slowly when the temperature exceeds 420°C, and the thermal decomposition products are harmless to the human body. Because of its stable chemical and cross-linked structure, the melamine sponge has excellent chemical stability, safety and environmental protection.
  • the organic porous material provided by the embodiments of the present application has the advantages of high saturated liquid absorption, good appearance after saturated liquid absorption, high temperature resistance, etc., which is beneficial to better transporting liquid e-liquid to the heating wire .
  • the organic porous materials provided by the examples of this application have a high open porosity and can transport conductive liquid e-liquid more smoothly.
  • the found materials have good e-liquid affinity and endow
  • the organic porous materials in the examples of the application have good liquid e-liquid lock ability.
  • Figure 1(a) is a SEM photo of the microstructure of a melamine resin porous material provided by an embodiment of the present application;
  • Figure 1(b) is a pore size distribution diagram of a melamine resin porous material provided by an embodiment of the present application
  • FIG. 2 is a cross-sectional view of an aerosol generating device using organic porous materials provided by an embodiment of the present application
  • FIG. 3 is a cross-sectional view of an aerosol generating device using organic porous materials provided by an embodiment of the present application
  • Figure 4 is a physical view of an atomizing core provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an open large smoke atomizing core using organic porous materials provided by an embodiment of the present application
  • Fig. 6 is a comparison photograph of a absorbent cotton atomizing core (a) and a melamine resin porous material atomizing core (b) provided by an embodiment of the application;
  • Fig. 7 is a comparison photograph of a kind of absorbent cotton atomization core (a) and a melamine resin porous material atomization core (b) provided by an embodiment of the present application for liquid storage and anti-burning effects.
  • heating element 2- organic material porous body; 3- seal; 4- liquid e-liquid; 5- air inlet; 6-aerosol outlet; 7- flow direction of liquid e-liquid; 8- aerosol escape Pipeline; 9-Atomizer shell; 10-Power positive pole; 11-Power negative pole; 12-Sealed cover; 13-Porous ceramic body with embedded heating wire.
  • Figure 1 (a) is an SEM photo of the microstructure of a melamine resin porous material provided by an embodiment of the application
  • Figure 1 (b) is a melamine resin porous material provided by an embodiment of the application The pore size distribution map of the material.
  • Melamine resin porous material is a kind of flexible nano-ultra-fine fiber foam with narrow pore size distribution.
  • melamine resin sponge has high temperature resistance and is suitable for long-term work under 200-240°C working conditions, 400°C There is no volatilization and deformation below.
  • the liquid-conducting and locking ability of the liquid e-liquid of the melamine resin sponge it has no obvious relationship with the pore size of the melamine sponge.
  • the average pore diameter as low as about 20 nanometers to the average pore diameter of 100 microns can achieve good oil transmission. And lock oil effect.
  • FIG. 2 is a schematic cross-sectional structure diagram of an embodiment of an aerosol generating device using organic porous materials.
  • a spiral heating element 1 made of an electric heating wire or an electric heating tape is wound on the surface of a cylindrical organic material porous body 2;
  • the shape of the organic material porous body 2 is a dumbbell-shaped structure with a thinner middle part and thicker ends;
  • the shape of the aerosol escape duct 8 is a circular tube, and its bottom is provided with a through transverse circular symmetrical hole.
  • the organic material porous body 2 coiled with the heating element 1 is installed in the circular symmetrical hole in a transverse manner.
  • the thicker dumbbell-shaped structure can also play a sealing role to prevent the liquid e-liquid from leaking after absorbing the liquid e-liquid 4 in the liquid storage cavity;
  • the bottom of the atomizer housing 9 of the aerosol generating device is an open structure for injecting liquid smoke oil; after the aerosol escape pipe 8, the heating element 1, the porous body 2, and the liquid smoke oil 4 are assembled, they are made of silicone rubber The sealing component seals the bottom of the housing 9 of the aerosol generator.
  • the liquid e-liquid 4 enters the liquid storage part inside the porous body through the liquid absorption surface of the porous body 2 and reaches the atomization surface.
  • the flow direction of the smoke oil is shown in 7.
  • the trigger controller When a suction action occurs, the trigger controller is powered via the electrodes 10 and 11, and the heating element transfers heat to the liquid e-liquid on the atomizing surface of the porous body.
  • the liquid e-liquid on the atomizing surface receives the heat transferred by the heating element 1 and is converted into a gas state, and interacts with the air entering from the air inlet 5 to generate aerosol, which escapes from the aerosol outlet 6.
  • This embodiment is an aerosol generator with a simple structure, which is characterized by making full use of the microscopic three-dimensional nano-network structure of organic porous materials to achieve rapid liquid absorption, effectively increasing the liquid storage capacity, and strengthening the liquid e-liquid in the porous body.
  • FIGS. 3 and 4 a schematic cross-sectional structure diagram and a physical diagram of an atomizing core of another embodiment of an aerosol generating device using organic porous materials.
  • the organic material porous body 2 covers the surface of the ceramic porous body 13 in which the heating wire 1 is sintered to make up for the lack of the porous ceramics' ability to lock liquid.
  • Ceramic porous bodies have excellent properties such as stable chemical properties, low thermal conductivity, high temperature resistance and corrosion resistance, which to some extent make up for the performance defects of cotton and fiber bundles to conduct liquids.
  • ceramic porous bodies generally have problems such as low porosity and large pore diameters.
  • the porosity ranges from 40% to 80%, and the pore diameter is between 10 ⁇ m and 300 ⁇ m.
  • the liquid absorption and drainage can basically meet the design requirements, but the liquid locking ability needs to be improved, that is, it is easy to leak oil.
  • Fig. 4 shows a physical view of an embodiment in which an organic porous material is used to wrap and cover the surface of a porous ceramic heating element with an electric heating wire sintered inside.
  • the figure clearly shows that the liquid-locking ability of the organic porous material is better than that of the porous ceramic.
  • the ceramic part has been leaked out and hung on the heating wire lead, while the surface of the organic porous material is wet but no liquid seeps out.
  • FIG. 5 a schematic structural view of an embodiment of an open-type oil-dropping large smoke atomizing core using organic porous materials.
  • organic porous materials are directly used as the oil storage carrier and the oil guide body, which are applied to the open-type oil drop large smoke atomization core, and directly replace the cotton-type oil storage carrier and the oil guide body used in the industry.
  • the ignition point of cotton is only 150°C, and it is extremely easy to burn by the heating wire.
  • the melamine resin porous material with heat-resistant polymer as the base material has a thermal decomposition temperature above 400°C, and the long-term use temperature can reach 200-240°C, which just covers the working temperature range of the electronic cigarette core. It decomposes slowly when the temperature exceeds 420°C, and the thermal decomposition products are harmless to the human body.
  • the organic porous material application provided by the present application has the advantages of high saturated liquid absorption, good appearance after saturated liquid absorption, high temperature resistance, etc., which is beneficial to better transporting liquid e-liquid to the heating element.
  • FIG 6 shows the absorbent cotton mist Comparison of the appearance of the core (a) and the melamine resin porous material atomization core (b) after saturated absorption of liquid e-liquid. After standing for 10 minutes, the smoke oil adsorbed in the absorbent cotton atomizing core (a) has overflowed a lot, while the melamine resin porous material atomizing core (b) still maintains the initial saturated adsorption appearance, and there is almost no smoke oil overflow.
  • the melamine resin porous body After heating for 8 seconds, remove the heating element and observe that the surface of the absorbent cotton has been partially burnt, and the melamine resin porous body has a complete appearance. Moreover, when the volume is basically the same, the amount of smoke oil absorbed by the absorbent cotton is significantly lower than that of the melamine resin porous material, which also provides a favorable aspect for smooth oil supply and prevention of dry burning.

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Abstract

一种有机多孔材料（2）在气溶胶发生装置中的应用，以及使用该材料的雾化器。该有机多孔材料（2）至少部分地是密胺树脂多孔材料，密胺树脂多孔材料具有超过400℃的分解温度，能在高达180～240℃的高温下长时间使用而不发生性状改变，因而能够覆盖雾化器的工作温度范围；此外，该材料具有高的开孔率，和可控的孔径分布，能够同时实现良好的导液和锁液性能，是一种理想的雾化器导液材料。将该有机多孔材料（2）应用于雾化器使用，具有吸液快速、储液容量高、导液通畅，浸润液体后形成纳米毛细管微观结构，锁液能力突出的优点。

Description

一种有机多孔材料在气溶胶发生装置中的用途及使用该材料的雾化器
本申请要求于2019年7月3日提交中国专利局，申请号为201910593233.X，发明名称为“一种有机多孔材料在气溶胶发生装置中的用途及使用该材料的雾化器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及气溶胶发生装置领域，尤其涉及一种有机多孔材料在气溶胶发生装置中的用途及使用该有机多孔材料的雾化器。
背景技术
通过雾化芯加热雾化等手段，将含有尼古丁等的雾化液变成气溶胶的装置是一种模仿香烟的电子产品，产生的气溶胶具有与香烟近似的烟雾、味道和感觉。这种通过雾化产生的含尼古丁气溶胶不含普通香烟烟气中普遍存在的焦油等有害致癌物质，被认为是一种有利于传统烟民身体健康的香烟替代品。同时这种电子装置具有便携性好，不会产生明火，也不产生二手烟且环保的特点，受到很多吸烟人士的青睐。
气溶胶发生装置的加热雾化技术，目前广泛采用的主要有两类：1)以棉花或纤维束作为导液体，将电热丝缠绕其上直接加热烟油而使之雾化；2)以蜂窝陶瓷作为导液体，采用电热丝或电热带等方式加热而使烟油雾化。
棉花或纤维束作为导液体，具有结构简单、效果良好等特点，在开放式滴油大烟雾雾化芯中得到用户充分肯定。棉花较为蓬松，吸油量高，但耐热性较差，燃点仅为150℃，压缩模量低易致大幅度永久形变，在封闭式小烟中应用很难解决漏油和糊芯的问题。玻璃或特种聚合物等材质的纤维束或玻璃棉其耐热性能良好，但密度高、饱和吸油量低，且锁液能力不理想。
由骨料、粘结剂及造孔剂等组分烧结而成的多孔陶瓷，内部具有彼此贯通并与材料表面连通的大量孔道结构，具有化学性质稳定、导热性低以及耐高温耐腐蚀等优良性能，一定程度上弥补了棉花及纤维束导液体的性能缺陷。但业界现用多孔陶瓷类导液体，普遍存在孔隙率较低、微孔直径较大等问题，吸液、导液方面基本上能够达到设计要求，但锁液能力有待提高，即容易漏油。
发明内容
为了解决现有技术中雾化芯存在的漏油问题，以及棉质导液材料的糊芯问题，本申请创造性地提出以下解决方案。
第一方面，本申请实施例提供了一种有机多孔材料在气溶胶发生装置中的应用，所述有机多孔材料至少部分地是密胺树脂多孔材料。
进一步的，所述有机多孔材料表观密度为3～120×10-3g/cm3，优选地为4～12×10-3g/cm3。
进一步的，所述有机多孔材料的25％形变压缩强度为5～30KPa。
进一步的，所述有机多孔材料具有高于300℃的分解温度，优选的高于350℃的分解温度，更优选的高于400℃的分解温度。
进一步的，所述有机多孔材料的开孔率位大于60％，优选大于80％，更优选大于95％。
进一步的，所述有机多孔材料的孔径范围分布为超过90％的孔体积的孔径范围在10纳米-100微米，优选在10纳米-1微米，更优选为10纳米-100纳米，进一步更优选为10纳米-50纳米。
进一步的，所述气溶胶发生装置包括发热元件，所述有机多孔材料用作导液体与所述发热元件接触或邻近。
进一步的，所述气溶胶发生装置包括发热元件，所述有机多孔材料用作导液体，所述有机多孔材料与发热元件之间包括其他多孔材料。
第二方面，本申请实施例还提供了一种气溶胶发生装置的雾化器，其包括：
外壳；所述外壳内形成有存储雾化液的储液仓，所述储液仓包括出口；所述外壳内沿所述外壳的纵长方向形成延伸的气溶胶通道，所述气溶胶通道包括入口和出气口，所述出气口位于所述外壳的一端；
雾化芯，所述雾化芯收容于所述外壳内，储液仓的所述出口与雾化芯的吸液面连通；雾化芯的雾化面与所述气溶胶通道连通，其特征在于，所述雾化芯至少部分地由密胺树脂多孔材料构成；
固定件，用于固定所述雾化芯和所述外壳；
发热体，所述发热体接触或邻近所述雾化面；以及
电极，用于电连接所述发热体，并使发热体接受电功率。
进一步的，所述雾化芯包括多孔陶瓷和密胺树脂多孔材料，所述多孔陶瓷的其中一个表面形成所述雾化面，所述密胺树脂多孔材料的其中一个表面形成所述吸液面，所述密胺树脂多孔材料至少部分地覆盖所述多孔陶瓷，以使雾化液经由所述吸液面进入雾化芯，并传导到所述雾化面。
所述的有机多孔材料至少部分地是密胺树脂多孔材料，密胺树脂多孔材料例如是密胺海绵。本申请实施例优选可以整体使用密胺树脂多孔材料作为气溶胶发生装置的导液材料。也可以将密胺树脂多孔材料与其他多孔材料复合形成导液体，例如密胺树脂多孔材料与无纺布、棉等其他具有毛细现象的材料复合形成导液材料，所述复合可以是粘接，也可以是叠置等。
密胺海绵是一种具有三维孔状结构的材料，其孔隙率可高达99％，开孔率高达百分之九十五以上，同时具有良好的阻燃性，即接触明火后不燃烧，离火可以自熄。密胺树脂在温度超过420℃时才缓慢分解，热分解产物均对人体无害。因其稳定的化学和交联结构使得密胺海绵具有优良的化学稳定性，安全环保。
相较于本领域常用的棉花，本申请实施例提供的有机多孔材料具有饱和吸液量高、饱和吸液后外形保持良好、耐高温等优点，有利于更好地向发热丝输送液态烟油。
相较于目前普遍使用的陶瓷多孔材料，本申请实施例提供的有机多孔材料具有高开孔率，能够更顺畅的输送传导液体烟油，所发现的材料具有良好的烟油亲和性，赋予本申请实施例中的有机多孔材料良好的液体烟油锁液能力。
附图说明
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(a)是本申请实施例提供的一种密胺树脂多孔材料的微观结构SEM照 片；
图1(b)是本申请实施例提供的一种密胺树脂多孔材料的孔径分布图；
图2是本申请实施例提供的一种采用有机多孔材料的气溶胶发生装置的剖示图；
图3是本申请实施例提供的一种采用有机多孔材料的气溶胶发生装置的剖示图；
图4是本申请实施例提供的一种雾化芯实物图；
图5是本申请实施例提供的一种采用有机多孔材料的开放式大烟雾雾化芯的结构示意图；
图6是本申请实施例提供的一种脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)锁液能力对比照片；
图7是本申请实施例提供的一种脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)储液及防烧糊效果对比照片。
附图中的标记：
1-发热体；2-有机材料多孔体；3-密封件；4-液态烟油；5-空气进入口；6-气溶胶出口；7-液态烟油的流动方向；8-气溶胶逸出管道；9-雾化器外壳；10-电源正极；11-电源负极；12-密封盖；13-内嵌电热丝的陶瓷多孔体。
具体实施方式
以下结合实施例和附图对本申请做进一步详细说明。实施例仅限于对本申请的技术特征、目的和效果有更加清楚的理解，而非对本申请的限定。
请参阅图1，其中，图1(a)是本申请实施例提供的一种密胺树脂多孔材料的微观结构SEM照片；图1(b)是本申请实施例提供的一种密胺树脂多孔材料的孔径分布图。
密胺树脂多孔材料是一种柔性的纳米超细纤维泡沫塑料，具有较窄的孔径分布，此外，密胺树脂海绵具有耐高温性适宜长期工作在摄氏200～240℃工况 条件下，400度以下无挥发和变形现象。对于密胺树脂海绵的液体烟油的导液锁液能力，其与密胺海绵孔径的大小关系不明显，在低至20纳米左右的平均孔径到100微米平均孔径，均能实现良好的导油和锁油效果。
参考图2，其是采用有机多孔材料的气溶胶发生装置的一种实施例的剖面结构示意图。
电热丝或电热带绕制成的螺旋状发热体1，盘绕在圆柱状的有机材料多孔体2表面；
有机材料多孔体2的外形为中部较细而两端较粗大的哑铃状结构；
气溶胶逸出管道8的外形为圆形管状，其底部开设有贯通的横向圆形对称孔洞，盘绕有发热体1的有机材料多孔体2以横向方式装置在此圆形对称孔洞内，两端较粗大的哑铃状结构在吸收储液腔中的液态烟油4后同时还可以发挥密封作用防止液体烟油漏出；
气溶胶发生装置的雾化器外壳9底部，为开放式构造，以便注入液态烟油；气溶胶逸出管道8、发热体1、多孔体2和液态烟油4装配完毕以后，采用硅橡胶制作的密封部件将气溶胶发生器的外壳9底部予以密封。
液态烟油4经由多孔体2的吸液面进入多孔体内部的储液部，到达雾化面。烟油的流动方向如7所示。
当抽吸动作发生时，触发控制器经由电极10和11供电，发热体将热量传递给多孔体雾化面上的液态烟油。
雾化面上的液态烟油接受发热体1传递的热量，转化为气态，并与从进气口5进入的空气发生相互作用，产生气溶胶，从气溶胶出口6逸出。
该实施例是一种结构简单的气溶胶发生器，其特点是充分利用了有机多孔材料的微观三维纳米网状结构，实现快速吸液，有效提高储液容量、强化液态烟油在多孔体内部的通畅输送能力；浸润液体后形成纳米毛细管微观结构，锁液能力突出，能够有效解决“易漏油”的诟病问题；多孔体雾化面产生的气溶胶烟雾，立即随抽吸方向沿着逸出通道逸出，不存在滞留或重复加热造成的“口感下降”等问题，也大幅度降低了“热裂解副产物”的产生几率。
同时参考图3和图4，采用有机多孔材料的气溶胶发生装置的另一种实施方式的剖面结构示意图和雾化芯实物图。
有机材料多孔体2覆盖在内部烧结有电热丝1的陶瓷多孔体13表面，以弥补多孔陶瓷锁液能力的不足。
业界现用多孔陶瓷类导液体，陶瓷多孔体具有化学性质稳定、导热性低以及耐高温耐腐蚀等优良性能，一定程度上弥补了棉花及纤维束导液体的性能缺陷。
但是，限于陶瓷材料本身的脆性和易碎性，陶瓷多孔体普遍存在孔隙率较低、微孔直径较大等问题，孔隙率的范围在40％～80％，孔径在10μm～300μm之间，吸液、导液方面基本上能够达到设计要求，但锁液能力有待提高，即容易漏油。
图4所示为采用有机多孔材料包裹覆盖在内部烧结有电热丝的多孔陶瓷发热体表面的实施例的一种实物图。图中明确示出有机多孔材料的锁液能力优于多孔陶瓷，陶瓷部分已有液滴渗出挂于电热丝引线上，而有机多孔材料部分表面湿润但无液体渗出。
参考图5，采用有机多孔材料的开放式滴油大烟雾雾化芯的一种实施例结构示意图。
该实施例直接采用有机多孔材料作为储油载体、导油体，应用于开放式滴油大烟雾雾化芯中，直接代替业界采用的棉花类储油载体和导油体。
棉花的燃点仅为150℃，极其容易被电热丝烧糊。
以耐热聚合物为基材的密胺树脂多孔材料，热分解温度在400℃以上，长期使用温度可达到200～240℃，正好覆盖电子烟雾化芯的工作温度范围。在温度超过420℃时才缓慢分解，且热分解产物均对人体无害。
相较于棉花，本申请提供的有机多孔材料应用具有饱和吸液量高、饱和吸液后外形保持良好、耐高温等优点，有利于更好地向发热体输送液态烟油。
参考图6，本申请除了对陶瓷多孔材料与密胺树脂多孔材料的锁液性能进行比较(参考图4)，进一步对脱脂棉与密胺树脂多孔材料的锁液性能进行比较， 图6为脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)饱和吸附液态烟油后的外观形貌对比。静置10分钟后，脱脂棉雾化芯(a)中吸附的烟油已大量溢出，而密胺树脂多孔材料雾化芯(b)依然保持初始饱和吸附的外观形貌，几乎没有烟油溢出。
参考图7，本申请进一步研究了脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)储液及防烧糊效果对比，图7是脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)储液及防烧糊效果对比，饱和吸附液态烟油后的脱脂棉雾化芯(a)与密胺树脂多孔材料雾化芯(b)经加热8秒后的外观形貌，加热条件为1.2欧发热丝和3.7伏特电压。8秒加热后去除发热体观察，脱脂棉表面已有部分烧糊，而密胺树脂多孔体外观完整。且从在体积基本相当的情况下，脱脂棉吸附的烟油量明显低于密胺树脂多孔材料，这也为顺畅供油，防止干烧提供了有利的方面。
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 (10)

  1. 一种有机多孔材料在气溶胶发生装置中的用途，其特征在于，所述有机多孔材料至少部分地是密胺树脂多孔材料。
  2. 根据权利要求1所述的用途，其特征在于，所述有机多孔材料表观密度为(3～120)×10 -3g/cm 3，优选地为(4～12)×10 -3g/cm 3。
  3. 根据权利要求1所述的用途，其特征在于，所述有机多孔材料的25％形变压缩强度为5～30KPa。
  4. 根据权利要求1所述的用途，其特征在于，所述有机多孔材料具有高于300℃的分解温度，优选的高于350℃的分解温度，更优选的高于400℃的分解温度。
  5. 根据权利要求1所述的用途，其特征在于，所述有机多孔材料的开孔率为大于60％，优选大于80％，更优选大于95％。
  6. 根据权利要求1所述的用途，其特征在于，所述有机多孔材料的孔径范围分布为孔径范围在10纳米～100微米的孔的体积超过90％，所述孔径范围优选在10纳米～1微米，更优选为10纳米～100纳米，进一步更优选为10纳米～50纳米。
  7. 根据权利要求1-6中任一项所述的用途，其特征在于，所述气溶胶发生装置包括发热元件，所述有机多孔材料用作导液体与所述发热元件接触或邻近。
  8. 根据权利要求1-6中任一项所述的用途，其特征在于，所述气溶胶发生装置包括发热元件，所述有机多孔材料用作导液体，所述有机多孔材料与发热元件之间包括其它多孔材料。
  9. 一种气溶胶发生装置的雾化器，包括：
    外壳；所述外壳内形成有存储雾化液的储液仓，所述储液仓包括出口；所述外壳内沿所述外壳的纵长方向形成延伸的气溶胶通道，所述气溶胶通道包括入口和出气口，所述出气口位于所述外壳的一端；
    雾化芯，所述雾化芯收容于所述外壳内，储液仓的所述出口与雾化芯的吸 液面连通；雾化芯的雾化面与所述气溶胶通道连通，其特征在于，所述雾化芯至少部分地由密胺树脂多孔材料构成；
    固定件，用于固定所述雾化芯和所述外壳；
    发热体，所述发热体接触或邻近所述雾化面；以及
    电极，用于电连接所述发热体，并使发热体接受电功率。
  10. 根据权利要求9所述的雾化器，其特征在于，所述雾化芯包括多孔陶瓷和密胺树脂多孔材料，
    所述多孔陶瓷的其中一个表面形成所述雾化面，所述密胺树脂多孔材料的其中一个表面形成所述吸液面，
    所述密胺树脂多孔材料至少部分地覆盖所述多孔陶瓷，以使雾化液经由所述吸液面进入雾化芯，并传导到所述雾化面。
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