WO2022206428A1 - 气雾生成装置及用于气雾生成装置的电阻加热器 - Google Patents

气雾生成装置及用于气雾生成装置的电阻加热器 Download PDF

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Publication number
WO2022206428A1
WO2022206428A1 PCT/CN2022/081694 CN2022081694W WO2022206428A1 WO 2022206428 A1 WO2022206428 A1 WO 2022206428A1 CN 2022081694 W CN2022081694 W CN 2022081694W WO 2022206428 A1 WO2022206428 A1 WO 2022206428A1
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Prior art keywords
aerosol
chamber
generating device
aerosol generating
heating element
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PCT/CN2022/081694
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English (en)
French (fr)
Inventor
武建
徐中立
李永海
Original Assignee
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 EP22778611.8A priority Critical patent/EP4316282A1/en
Publication of WO2022206428A1 publication Critical patent/WO2022206428A1/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
    • A24F40/46—Shape or structure of electric heating means
    • 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
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • 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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the embodiments of the present application relate to the technical field of heat-not-burn smoking articles, and in particular, to an aerosol generating device and a resistance heater used for the 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.
  • a heating device that releases a compound by heating rather than burning a material.
  • the material may be tobacco or other non-tobacco products, which may or may not contain nicotine.
  • Patent No. 201280070578.3 which is a known technology, proposes a design suitable for the airflow path in the suction process of the heating device. When the above known device is in use, the heat of the heater is radiated or transferred radially outwardly to the casing of the device, thereby increasing the temperature of the casing.
  • an aerosol generating device for heating an aerosol-generating product to generate aerosol; comprising a housing having a proximal end and a distal end opposite along a length direction; the proximal end is provided with a receiving hole; the Inside the housing are:
  • a chamber extending between opposing proximal and distal ends for removably receiving the aerosol-generating article
  • a heating element to heat the aerosol-generating article received in the chamber
  • a retaining element configured to extend axially of the chamber and at least partially surround the chamber; the retaining element defines a hollow region at least partially surrounding the chamber in which the heating element is retained within the area;
  • An air passage extends distally along the proximal end at least partially within the hollow region and is in fluid communication with the chamber near the distal end.
  • the holding element comprises an inner tube and an outer tube arranged in turn from the inside to the outside in the radial direction; the hollow area is formed between the inner tube and the outer tube.
  • an air inlet near the proximal end is provided between the outer tube or the inner tube or between the outer tube and the inner tube, for supplying air into the hollow area.
  • the inner tube is provided with an air outlet close to the distal end for allowing the air in the hollow area to enter the chamber.
  • the outer tube has a reduced outer diameter portion near the distal end, and the inner tube is connected by the reduced outer diameter portion.
  • the hollow region has an opening proximate the proximal end
  • a circuit board is also arranged in the casing; the heating element includes conductive pins that are electrically connected to the circuit board through the opening.
  • the casing is further provided with:
  • a first bracket configured to provide support to the retention element proximate the proximal end and to seal the opening.
  • the casing is further provided with:
  • a second bracket configured to provide support to the retention element proximate the distal end; the second bracket having a boss extending at least partially along the distal end proximally to the chamber to providing a stop for the aerosol-generating article received in the chamber;
  • the boss covers or spans the air outlet along at least a portion of the distal-to-proximal extension of the boss.
  • the heating element is configured in a tubular or helical shape surrounding the inner tube.
  • Yet another embodiment of the present application also provides a resistance heater for an aerosol-generating device, which is configured in an elongated shape and has a first end and a second end opposite along the length direction; comprising:
  • a holding element having an inner tube and an outer tube sequentially arranged from the inside to the outside in the radial direction, and a hollow area formed between the inner tube and the outer tube;
  • the inner tube is provided with a first air hole and a second air hole which are in air flow communication with the hollow region; wherein the first air hole is arranged close to the first end, and the second air hole is arranged close to the second end ;
  • a resistive heating element is held within the hollow area.
  • the above aerosol generating device has two heat exchange modes of conduction and convection, so that the heat of the heating element is basically completely absorbed by the aerosol generating product, and the utilization rate of heat is improved.
  • Fig. 1 is the schematic diagram of the use state of the aerosol generating device provided by one embodiment
  • Fig. 2 is a cross-sectional schematic diagram of the aerosol generating device in Fig. 1 along the width direction;
  • Fig. 3 is the sectional schematic diagram of the heater in Fig. 2;
  • FIG. 4 is a schematic structural diagram of a viewing angle of the holding element in FIG. 3;
  • FIG. 5 is a schematic view of the structure of the heating element in FIG. 3 from a viewing angle
  • FIG. 6 is a schematic cross-sectional view of a heating element of yet another embodiment.
  • An embodiment of the present application provides an aerosol-generating device that heats rather than burns an aerosol-generating article such as a cigarette, thereby volatilizing or releasing at least one component of the aerosol-generating article to form an aerosol for inhalation.
  • the structure of the aerosol generating device according to an embodiment of the present application can be referred to as shown in FIG. 1 to FIG. 2 .
  • the overall shape of the device is roughly configured as a flat cylinder, and the external components of the aerosol generating device include:
  • the casing 10 has a hollow structure inside, thereby forming an assembly space for necessary functional components such as infrared radiation; the casing 10 has a proximal end 110 and a distal end 120 opposite along the length direction; wherein:
  • the proximal end 110 is provided with a receiving hole 111 through which the aerosol-generating article A can be received in the housing 10 to be heated or removed from the housing 10;
  • the remote end 120 is provided with a charging interface such as a USB type-C interface, a Pin interface, etc., which is used to charge the aerosol generating device after being connected with an external power source or an adapter.
  • a charging interface such as a USB type-C interface, a Pin interface, etc.
  • FIG. 2 the internal structure of the housing 10 is shown in FIG. 2, including:
  • the resistive heater 20, in the preferred implementation shown in FIG. 2, has a tubular shape, and is further adapted to surround at least a portion of the aerosol-generating article A when the aerosol-generating article A is received within the housing 10 for heating by aerosol-generating article A generates an aerosol in a manner around the periphery of the aerosol-generating article A;
  • the battery cell 130 is used for power supply
  • circuit board 140 for conducting current between the cells 130 and the resistance heater 20;
  • the upper bracket 30 for supporting the resistance heater 20 at the position of the proximal end 110;
  • the lower bracket 40 is used to provide support for the resistance heater 20 at the position of the distal end 120 .
  • the resistive heater 20 has a length of about 60-95 mm, and an inner diameter of about 4-8 mm.
  • the aerosol-generating article A preferably uses a tobacco-containing material that releases volatile compounds from the substrate when heated; or can be heated and suitable for electric heating for smoking of non-tobacco materials.
  • Aerosol-generating article A preferably employs a solid substrate, which may include one or more of powders, granules, shredded strands, strips, or flakes of one or more of vanilla leaf, tobacco leaf, homogenized tobacco, and expanded tobacco; Alternatively, the solid substrate may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.
  • the lower bracket 40 has a boss 41 that protrudes or extends at least partially into the resistance heater 20 , and in turn abuts the boss when the aerosol-generating article A is at least partially enclosed or contained within the resistance heater 20 .
  • a stop is formed on the table 41 .
  • the detailed structure of the resistance heater 20 can be referred to as shown in FIG. 3 , including:
  • the heating element 24 is electrically connected to the circuit board 140 to generate heat under the power supply of the battery cell 130;
  • Retaining element 25 constructed in a tubular shape and having an inner tube 21, an outer tube 22, and a hollow area 23 between the inner and outer tubes 21 and 22, arranged in this order from the inside to the outside in the radial direction; the holding element 25 For accommodating and retaining the heating element 24, the heating element 24 is accommodated and retained in the hollow area 23 after assembly.
  • the inner tube 21 and the outer tube 22 are made of materials such as glass, ceramic, metal or alloy that are heat-resistant and thermally conductive, such as stainless steel.
  • materials such as glass, ceramic, metal or alloy that are heat-resistant and thermally conductive, such as stainless steel.
  • the inner tube 21 of the holding element 25 and the heating element 24 abut against each other and thus conduct heat to each other, and at the same time they are insulated from each other.
  • insulation can be formed between the surfaces they contact by means of gluing, surface oxidation, spraying an insulating layer, and the like.
  • the heating element 24 is made of metal materials, metal alloys, graphite, carbon, conductive ceramics or other composite materials of ceramic materials and metal materials with appropriate impedance.
  • suitable metal or alloy materials include nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nickel-chromium alloys, nickel-iron alloys, iron-chromium alloys, iron-chromium-aluminum alloys, titanium alloys, iron-manganese alloys At least one of aluminum-based alloy or stainless steel, etc.
  • FIG. 5 shows the structure of the heating element 24 in FIG. 2, which is constructed in the form of a spiral coil; the heating element 24 is also provided with a conductive pin 241 connected to the circuit board 140, and the heating element 24 is connected to the heating element 24 through the conductive pin 241. powered by.
  • the heating element 24 can also be prepared by winding a sheet-like mesh resistive substrate; or in some other optional implementations, the heating element 24 can also be made by printing, depositing, etching, etc. In the form of conductive traces formed on the inner tube 21 .
  • the heating element 24 may be an induction heating element capable of generating heat induced by a magnetic field, and the induction heating element may be positioned within the hollow region 23 or held on the surface of the inner or outer tube described above near the hollow region 23 It can be understood that the heating element 24 can be formed by at least a portion of the above-mentioned holding element, for example, at least a portion of the inner tube is configured to be able to induce heat induced by a magnetic field, and then conduct radial heat to the aerosol-generating article in the chamber, while heating Airflow within hollow region 23 .
  • FIG. 6 shows a schematic structural diagram of a heating element 24a according to another embodiment.
  • the heating element 24a is in the configuration of a helical coil, and the cross-sectional shape of the wire material is a wide or flat shape different from a conventional circle.
  • the cross-section of the wire material of heating element 24a has a dimension extending longitudinally greater than a dimension extending radially perpendicular to the longitudinal extension, so that heating element 24a has a flattened rectangular shape.
  • the hollow of the inner tube 21 of the retaining element 25 forms a chamber 211 for receiving the aerosol-generating article A, which is removably received in the chamber through the receiving hole 111 211.
  • the holding element 25 has opposite upper ends 210 and lower ends 220; the end of the outer tube 22 close to the lower end 220 is joined to the inner tube 21 by welding or the like; the outer tube 22 The end of the close upper end 210 is not in contact with the inner tube 21 , so that the hollow area 23 has an open shape at the upper end 210 , which is then blocked or sealed by the upper bracket 30 made of flexible material after assembly.
  • the upper end 210 of the hollow area 23 is open, on the one hand, to facilitate the assembly of the heating element 24 to the hollow area 23, and on the other hand, it can also be used to supply the conductive pins 241 of the heating element 24 from the hollow area 23.
  • the opening extends to the outside and is electrically connected to the circuit board 140 .
  • the outer tube 22 has a reduced outer diameter portion 221 near the lower end 220 , the outer diameter reduced portion 221 is gradually reduced, and is connected to the inner tube by the outer diameter reduced portion 221 twenty one.
  • the inner tube 21 is provided with a plurality of air inlet holes 212 at the upper end 210 and a plurality of air outlet holes 213 near the lower end 220 .
  • the air inlet hole 212 may also be formed on the outer tube 22 , or formed by the open end between the inner tube 21 and the outer tube 22 .
  • the above resistance heater 20 has two heat exchange modes of conduction and convection, so that the heat of the heating element 24 is basically completely absorbed by the aerosol generating product A, which improves the heat utilization rate. Further, the maximum temperature of the heating element 24 can be reduced, energy consumption can be saved, and preheating time can be shortened; and a better suction taste can be obtained, and more mouths can be suctioned.
  • the outer diameter of the boss 41 of the lower bracket 40 is basically smaller than the inner diameter of the inner tube 21 .
  • the outer diameter of the boss 41 is designed with a size of about 4 mm; 41 has a sufficient or suitable extension length so that it can cover or cross the air outlet 213, so that the air outlet 213 is in the bare state in FIG. .
  • the outside air entering the air intake hole 212 may enter through the gap between the receiving hole 111 in FIG. 2 , the upper bracket 30 and the aerosol-generating product A; or in other modified implementations , can also be configured to be entered through structures such as air holes on the side wall of the housing 10 and other parts.
  • annular protrusions, or flexible silicone rings and other sealing materials or sealing structures can be added to the inner wall of the inner tube 21, and the position can be arranged at the air inlet hole. 212 and the air outlet hole 213; preferably close to the air inlet hole 212.
  • the aforementioned sealing material or sealing structure prevents the air from directly entering downward from the gap between the inner tube 21 and the outer surface of the aerosol-generating article A to the end of the aerosol-generating article A near the lower end 220 to be sucked, so that the air can only be sucked.
  • the end of the aerosol-generating article A near the lower end 220 is entered through the hollow region 23 in FIG. 3 .

Abstract

提供一种气雾生成装置及用于气雾生成装置的电阻加热器（20），气雾生成装置包括壳体（10），壳体（10）内设有：腔室（211），延伸于相对的近端（110）和远端（120）之间，用于可移除地接收气溶胶生成制品（A）；加热元件（24），加热接收于腔室（211）的气溶胶生成制品（A）；保持元件（25），被构造成沿腔室（211）的轴向延伸并至少部分围绕腔室（211）；保持元件（25）界定有至少部分围绕腔室（211）的中空区域（23），加热元件（24）被保持于该中空区域（23）内；空气通道，至少部分于中空区域（23）内沿近端（110）向远端（120）延伸并于靠近远端（120）之位置与腔室（211）保持流体连通。气雾生成装置具有传导和对流两种热交换方式，使加热元件（24）的热量基本完全被气溶胶生成制品（A）吸收，提升了热量利用率。

Description

气雾生成装置及用于气雾生成装置的电阻加热器
相关申请的交叉参考
本申请要求于2021年3月29日提交中国专利局，申请号为202120637200.3，名称为“气雾生成装置及用于气雾生成装置的电阻加热器”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
本申请实施例涉及加热不燃烧烟具技术领域，特别涉及一种气雾生成装置及用于气雾生成装置的电阻加热器。
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。
此类产品的示例为加热装置，其通过加热而不是燃烧材料来释放化合物。例如，该材料可为烟草或其他非烟草产品，这些非烟草产品可包含或可不包含尼古丁。作为另一示例，存在有通过加热器对烟草产品进行加热使其释放化合物生成气溶胶的加热装置。比如作为已知技术的201280070578.3号专利提出了一种适合于加热装置的抽吸过程中的气流路径的设计。以上已知装置在使用中，加热器的热量会沿径向向外辐射或传递至装置的外壳，使外壳的温度升高。
发明内容
本申请实施例提供一种气雾生成装置，用于加热气溶胶生成制品生成气溶胶；包括壳体，具有沿长度方向相对的近端和远端；所述近端设 置有接收孔；所述壳体内设有：
腔室，延伸于相对的近端和远端之间，用于可移除地接收所述气溶胶生成制品；
加热元件，加热接收于所述腔室的气溶胶生成制品；
保持元件，被构造成沿所述腔室的轴向延伸并至少部分围绕所述腔室；所述保持元件界定有至少部分围绕所述腔室的中空区域，所述加热元件被保持于该中空区域内；
空气通道，至少部分于所述中空区域内沿所述近端向远端延伸并于靠近所述远端之位置与所述腔室保持流体连通。
在优选的实施中，所述保持元件包括沿径向方向由内向外依次设置的内管和外管；所述中空区域形成于所述内管和外管之间。
在优选的实施中，所述外管或内管或所述外管与内管之间设置有靠近所述近端的进气孔，用于供空气进入所述中空区域内。
在优选的实施中，所述内管上设置有靠近所述远端的出气孔，用于供所述中空区域内的空气进入所述腔室。
在优选的实施中，所述外管具有靠近所述远端的外径减小的部分，并通过该外径减小的部分连接所述内管。
在优选的实施中，所述中空区域具有靠近所述近端的敞口；
所述壳体内还设有电路板；所述加热元件包括有穿过所述敞口与所述电路板电连接的导电引脚。
在优选的实施中，所述壳体内还设有：
第一支架，被配置为在靠近所述近端的位置对所述保持元件提供支撑，并密封所述敞口。
在优选的实施中，所述壳体内还设有：
第二支架，被配置为在靠近所述远端的位置对所述保持元件提供支 撑；所述第二支架具有至少部分沿所述远端向近端延伸至所述腔室的凸台，以对接收于所述腔室的气溶胶生成制品提供止动；
所述凸台沿所述远端向近端的延伸长度的至少部分覆盖或跨过所述出气孔。
在优选的实施中，所述加热元件被构造成围绕所述内管的管状或螺旋形状。
本申请的又一个实施例还提出一种用于气雾生成装置的电阻加热器，被构造成纵长形，并具有沿长度方向相对的第一端和第二端；包括：
保持元件，具有沿径向方向由内向外依次布置的内管和外管、以及形成于所述内管和外管之间的中空区域；
所述内管上设有与所述中空区域气流连通的第一气孔和第二气孔；其中，所述第一气孔靠近所述第一端布置，所述第二气孔靠近所述第二端布置；
电阻加热元件，被保持于所述中空区域内。
以上气雾生成装置具有传导和对流两种热交换方式，使加热元件的热量基本完全被气溶胶生成制品吸收，提升了热量利用率。
附图说明
一个或多个实施例中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/模块和步骤表示为类似的元件/模块和步骤，除非有特别申明，附图中的图不构成比例限制。
图1是一个实施例提供的气雾生成装置使用状态的示意图；
图2是图1中气雾生成装置沿宽度方向的剖面示意图；
图3是图2中加热器的剖面示意图；
图4是图3中保持元件一视角的结构示意图；
图5是图3中加热元件一视角的结构示意图；
图6是又一个实施例的加热元件的剖面示意图。
具体实施方式
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。
本申请的一个实施例提出一种加热而非燃烧气溶胶生成制品例如烟支，进而使气溶胶生成制品的至少一种成分挥发或释放形成供吸食的气溶胶的气雾生成装置。
本申请一实施例的气雾生成装置的构造可以参见图1至图2所示，装置的外形整体大致被构造为扁筒形状，气雾生成装置的外部构件包括：
壳体10，其内部为中空的构造，进而形成可用于红外辐射等必要功能部件的装配空间；壳体10具有沿长度方向相对的近端110和远端120；其中：
近端110设置有接收孔111，气溶胶生成制品A可通过该接收孔111接收于壳体10内被加热或从壳体10内移出；
远端120设置有充电接口例如USB type-C接口、Pin针式接口等，通过与外部电源或适配器连接之后，用于为气雾生成装置进行充电。
进一步壳体10内部的构造参见图2所示，包括：
电阻加热器20，在图2所示的优选实施中呈管状的形状，进而用于在当气溶胶生成制品A接收于壳体10内时，围绕气溶胶生成制品A的至少一部分，以通过加热气溶胶生成制品A的外周的方式使气溶胶生成 制品A生成气溶胶；
电芯130，用于供电；
电路板140，用于在电芯130和电阻加热器20之间引导电流；
上支架30，用于在近端110的位置对电阻加热器20提供支撑；
下支架40，用于在远端120的位置对电阻加热器20提供支撑。
在可选的实施中，电阻加热器20具有大约60～95mm的长度，以及大约4～8mm的内径。
在可选的实施中，进一步在可选的实施中，气溶胶生成制品A优选采用加热时从基质中释放的挥发化合物的含烟草的材料；或者也可以是能够加热之后适合于电加热发烟的非烟草材料。气溶胶生成制品A优选采用固体基质，可以包括香草叶、烟叶、均质烟草、膨胀烟草中的一种或多种的粉末、颗粒、碎片细条、条带或薄片中的一种或多种；或者，固体基质可以包含附加的烟草或非烟草的挥发性香味化合物，以在基质受热时被释放。
进一步根据图2，下支架40具有至少部分凸入或延伸至电阻加热器20内的凸台41，进而当气溶胶生成制品A至少部分被包围或容纳在电阻加热器20内时抵靠在凸台41上形成止动。
电阻加热器20的详细构造可以参见图3所示，包括：
加热元件24，通过与电路板140电连接进而在电芯130的供电下发热；
保持元件25，被构造成管状的形状，并具有沿径向方向由内向外依次设置的内管21、外管22、以及位于内管21和外管22之间的中空区域23；保持元件25用于容纳和保持加热元件24，在装配后加热元件24是被容纳和保持在中空区域23内的。
在可选的实施中，内管21、外管22采用耐热并导热的玻璃、陶瓷、 金属或合金等的材质制备，例如不锈钢。当然在装配之后，保持元件25的内管21与加热元件24是抵靠进而相互导热的，同时它们之间是相互绝缘的。例如可以通过打胶、表面氧化、喷绝缘层等方式使它们接触的表面之间形成绝缘。
加热元件24的材质则采用具有适当阻抗的金属材料、金属合金、石墨、碳、导电陶瓷或其它陶瓷材料和金属材料的复合材料。其中，适当的金属或合金材料包括镍、钴、锆、钛、镍合金、钴合金、锆合金、钛合金、镍铬合金、镍铁合金、铁铬合金、铁铬铝合金、钛合金、铁锰铝基合金或不锈钢等中的至少一种。
图5示出了图2中加热元件24的结构，被构造呈螺旋线圈的形式；加热元件24上还设置有连接至电路板140的导电引脚241，通过该导电引脚241对加热元件24供电。
在其他的可选实施中，加热元件24还可以是薄片式的网状电阻性基材卷绕制备；或者在其他的一些可选实施中，加热元件24还可以是通过印刷、沉积、蚀刻等方式形成于内管21上的导电轨迹的形式。在另外的可选实施中，加热元件24可以是能够经磁场诱导而发热的感应加热元件，感应加热元件可定位在中空区域23内或者保持在上述内管或外管靠近中空区域23的表面上；可以理解的是，加热元件24可由上述保持元件的至少一部分构造形成，譬如内管的至少一部分构造成能够经磁场诱导而感应发热，进而径向热传导至腔室内的气溶胶生成制品，同时加热中空区域23内的气流。
图6示出了又一个实施例的加热元件24a的结构示意图，加热元件24a呈螺旋线圈的构造，其导线材料的截面形状是不同于常规圆形的宽或者扁的形状。在图6所示的优选实施中，加热元件24a的导线材料的截面具有沿纵向延伸的尺寸大于沿垂直于纵向延伸部的径向延伸的尺 寸，从而使加热元件24a呈扁的矩形形状。
进一步参见图3和图4所示，保持元件25的内管21的中空形成用于接收气溶胶生成制品A的腔室211，气溶胶生成制品A通过接收孔111可移除地接收在腔室211内。
根据图3和图4所示的优选实施中，保持元件25具有相对的上端210和下端220；外管22靠近下端220的端部是通过焊接等方式结合于内管21上的；外管22靠近的上端210端部是与内管21不接触，而使中空区域23在上端210呈敞口的形状，装配后进而被柔性材质的上支架30堵塞或密封。具体在实施中，中空区域23在上端210为敞口，一方面是为了便于将加热元件24装配至中空区域23、另一方面还可以用于供加热元件24的导电引脚241由中空区域23的敞口延伸至外部进而与电路板140电连接。
具体参见图3所示的优选实施中，外管22具有靠近下端220的外径减小部分221，该外径减小部分221呈逐渐收缩，并由该外径减小部分221连接至内管21。
更加优选地，内管21上设置有上端210的若干进气孔212，以及靠近下端220的若干出气孔213。装配后构造成在抽吸的过程中，空气由如图3中箭头R所示气流路径进入至气溶胶生成制品A；具体，空气由进气孔212进入至中空区域23内，而后沿纵向方向朝下端220延伸基本穿过中空区域23后由出气孔213流出，最终进入至气溶胶生成制品A后被抽吸。在其他的可变实施中，进气孔212还可以是形成于外管22上的，或者是由内管21与外管22之间的敞口端形成。
以上电阻加热器20，具有传导和对流两种热交换方式，使加热元件24的热量基本完全被气溶胶生成制品A吸收，提升了热量利用率。进而可以降低加热元件24的最高温度、可以节省能耗、减小预热时间；以 及可以得到更好的抽吸口感，抽吸更多的口数。
进一步参见图2所示，下支架40的凸台41的外径基本是小于内管21的内径的，具体实施中凸台41的外径采用4mm左右的尺寸设计；并且下支架40的凸台41具有足够或合适的延伸长度，使其能覆盖或跨过出气孔213，使出气孔213呈图2中的裸露的状态，而避免凸台41或气溶胶生成制品A遮挡或堵塞出气孔213。
进一步在可选的实施中，进入进气孔212的外部空气，可以是由图2中接收孔111、上支架30与气溶胶生成制品A之间的间隙进入的；或者在其他的变化实施中，还可以被构造成是由壳体10的侧壁等部位上的气孔等结构进入的。
进一步在更加优选的实施中，内管21的内壁上还可以增加一些环形的凸起、或柔性的硅胶环等密封材料或密封结构(图中未示出)，位置可以布置于在进气孔212和出气孔213之间的部位上；优选靠近进气孔212。前述密封材料或密封结构阻止空气直接由内管21与气溶胶生成制品A外表面之间的间隙向下直接进入至气溶胶生成制品A靠近下端220的端部被抽吸，以使空气仅能沿图3中通过中空区域23进入至气溶胶生成制品A靠近下端220的端部。
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。

Claims (10)

  1. 一种气雾生成装置，用于加热气溶胶生成制品生成气溶胶；包括壳体，其特征在于，所述壳体内设有：
    腔室，延伸于相对的近端和远端之间，用于可移除地接收所述气溶胶生成制品；
    加热元件，加热接收于所述腔室的气溶胶生成制品；
    保持元件，被构造成沿所述腔室的轴向延伸并至少部分围绕所述腔室；所述保持元件界定有至少部分围绕所述腔室的中空区域，所述加热元件被保持于该中空区域内；
    空气通道，至少部分于所述中空区域内沿所述近端向远端延伸并于靠近所述远端之位置与所述腔室保持流体连通。
  2. 如权利要求1所述的气雾生成装置，其特征在于，所述保持元件包括沿径向方向由内向外依次设置的内管和外管；所述中空区域形成于所述内管和外管之间。
  3. 如权利要求2所述的气雾生成装置，其特征在于，所述外管或内管或所述外管与内管之间设置有靠近所述近端的进气孔，用于供空气进入所述中空区域内。
  4. 如权利要求2或3所述的气雾生成装置，其特征在于，所述内管上设置有靠近所述远端的出气孔，用于供所述中空区域内的空气进入所述腔室。
  5. 如权利要求2或3所述的气雾生成装置，其特征在于，所述外管具有靠近所述远端的外径减小的部分，并通过该外径减小的部分连接所述内管。
  6. 如权利要求1至3任一项所述的气雾生成装置，其特征在于，所述中空区域具有靠近所述近端的敞口；
    所述壳体内还设有电路板；所述加热元件包括有穿过所述敞口与所述电路板电连接的导电引脚。
  7. 如权利要求6所述的气雾生成装置，其特征在于，所述壳体内还设有：
    第一支架，被配置为在靠近所述近端的位置对所述保持元件提供支撑，并密封所述敞口。
  8. 如权利要求4所述的气雾生成装置，其特征在于，所述壳体内还设有：
    第二支架，被配置为在靠近所述远端的位置对所述保持元件提供支撑；所述第二支架具有至少部分沿所述远端向近端延伸至所述腔室的凸台，以对接收于所述腔室的气溶胶生成制品提供止动；
    所述凸台沿所述远端向近端的延伸长度的至少部分覆盖或跨过所述出气孔。
  9. 如权利要求2或3所述的气雾生成装置，其特征在于，所述加热元件被构造成围绕所述内管的管状或螺旋形状。
  10. 一种用于气雾生成装置的电阻加热器，被构造成纵长形，并具有沿长度方向相对的第一端和第二端；其特征在于，包括：
    保持元件，具有沿径向方向由内向外依次布置的内管和外管、以及形成于所述内管和外管之间的中空区域；所述内管限定有能够接收气溶胶生成制品的腔室，所述中空区域至少部分围绕所述腔室；
    所述保持元件上设有与所述中空区域气流连通的第一气孔和第二气孔，所述第一气孔靠近所述第一端布置，所述第二气孔靠近所述第二端布置；所述中空区域通过所述第二气孔与所述腔室保持流体连通；
    电阻加热元件，被保持于所述中空区域内。
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