WO2022095899A1 - 气溶胶生成装置 - Google Patents

气溶胶生成装置 Download PDF

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Publication number
WO2022095899A1
WO2022095899A1 PCT/CN2021/128439 CN2021128439W WO2022095899A1 WO 2022095899 A1 WO2022095899 A1 WO 2022095899A1 CN 2021128439 W CN2021128439 W CN 2021128439W WO 2022095899 A1 WO2022095899 A1 WO 2022095899A1
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WO
WIPO (PCT)
Prior art keywords
generating device
heater
aerosol
aerosol generating
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/128439
Other languages
English (en)
French (fr)
Inventor
卢志明
胡瑞龙
李尹喆
徐中立
李永海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen FirstUnion Technology Co Ltd
Original Assignee
Shenzhen FirstUnion Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen FirstUnion Technology Co Ltd filed Critical Shenzhen FirstUnion Technology Co Ltd
Priority to KR1020237018764A priority Critical patent/KR20230098849A/ko
Priority to JP2023525444A priority patent/JP2023547632A/ja
Priority to EP21888596.0A priority patent/EP4241589A4/en
Priority to US18/035,288 priority patent/US12610985B2/en
Publication of WO2022095899A1 publication Critical patent/WO2022095899A1/zh
Anticipated expiration legal-status Critical
Priority to JP2025118596A priority patent/JP2025143507A/ja
Ceased legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/07—Arrangements using an air layer or vacuum the air layer being enclosed by one or more layers of insulation
    • 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
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0033—Heating devices using lamps
    • H05B3/0038—Heating devices using lamps for industrial applications

Definitions

  • the embodiments of the present application relate to the technical field of smoking articles, and in particular, to an aerosol generating device.
  • Smoking articles such as cigarettes and cigars burn tobacco to produce smoke during use. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. Examples of such products are so-called heat-not-burn products, which release compounds by heating tobacco rather than burning it.
  • the temperature of the shell is relatively high, which easily causes the smoker to feel hot, which affects the user's experience.
  • a vacuum tube is usually used for heat insulation, and the low thermal conductivity of the vacuum is used to reduce the heat transfer in the heating chamber to the outside.
  • the tube wall needs to withstand the pressure difference between the inside and outside, so the thickness of the tube wall of the vacuum tube is large, and the selection of its material has certain limitations.
  • the present application provides an aerosol generating device, which aims to solve the problem that the high temperature of the shell of the existing smoking device easily causes the smoker to feel hot.
  • the present application provides an aerosol generating device for heating an aerosol-forming substrate to generate an aerosol for inhalation; comprising:
  • a heater for heating the aerosol-forming substrate received in the chamber
  • the heat insulation pipe is arranged outside the heater;
  • the heat insulation pipe has an inner pipe and an outer pipe arranged along the radial direction of the chamber, and a sealed space is formed between the inner pipe and the outer pipe;
  • the sealed space is filled with gas;
  • a heat insulating layer is provided between the heater and the heat insulating pipe.
  • the radiation heat transfer of the heater can be reduced by the insulating layer, and the heat insulating pipe arranged outside the heater can further prevent the heat from being transferred to the outside, thereby avoiding the overheating of the shell temperature of the aerosol generating device. High causes the user to feel hot, which improves the user experience.
  • FIG. 1 is a schematic diagram of an aerosol generating device provided by an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of an aerosol generating device provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a heater provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an electrode connector provided by an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional view of the aerosol generating device provided by an embodiment of the present application after removing some components;
  • FIG. 6 is a schematic diagram of a first end cap provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a second end cap provided by an embodiment of the present application.
  • an aerosol generating device 100 provided by an embodiment of the present application, including:
  • the casing 10 has a receiving space inside, which can accommodate the heater 12 , the battery cell 13 , the circuit 14 and the like.
  • An aerosol-forming substrate is a substrate capable of releasing aerosol-forming volatile compounds. Such volatile compounds can be released by heating the aerosol-forming matrix. Aerosol-forming substrates can be solid or liquid or include solid and liquid components. The aerosol-forming substrate can be adsorbed, coated, impregnated, or otherwise loaded onto a carrier or support. The aerosol-forming substrate may conveniently be part of an aerosol-generating article.
  • the aerosol-forming matrix may include nicotine.
  • the aerosol-forming substrate may include tobacco, for example, may include a tobacco-containing material containing volatile tobacco flavor compounds that are released from the aerosol-forming substrate when heated.
  • Preferred aerosol-forming substrates may comprise homogenized tobacco material.
  • the aerosol-forming substrate may comprise at least one aerosol-forming agent, which may be any suitable known compound or mixture of compounds which, in use, facilitates the formation of dense and stable aerosols. formed and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating system.
  • Suitable aerosol formers are well known in the art and include, but are not limited to: polyols such as triethylene glycol, 1,3-butanediol and glycerol; esters of polyols such as glycerol mono-, di- or triacetate ; and fatty acid esters of mono-, di- or polycarboxylic acids, such as dimethyldodecanedioate and dimethyltetradecanedioate.
  • Preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1,3-butanediol and most preferably glycerol.
  • the battery cell 13 provides power for operating the aerosol generating device 100 .
  • the cells 13 may provide power to heat the heater 12 .
  • the cells 13 may provide the power required to operate other elements provided in the aerosol generating device 100 .
  • the battery cell 13 may be a rechargeable battery or a disposable battery.
  • the battery cell 13 may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery.
  • the battery cell 13 may be a lithium cobalt oxide (LiCoO2) battery or a lithium titanate battery.
  • Circuitry 14 may control the overall operation of aerosol-generating device 100 .
  • the circuit 14 controls not only the operation of the cells 13 and the heater 12 , but also the operation of other elements in the aerosol generating device 100 .
  • the circuit 14 acquires the temperature information of the heater 12 sensed by the temperature sensor, and controls the electric power provided by the battery cell 13 to the heater 12 according to the information.
  • FIG. 3 is a heater 12 provided by an embodiment of the present application, and the heater 12 includes:
  • the base body 121 is configured in a tubular shape extending in the axial direction of the chamber 11 and surrounding the chamber.
  • the base body 121 includes a first end (or a proximal end) and a second end (or a distal end), extending from a surface between the first end and the second end.
  • the base body 121 may be cylindrical, prismatic, or other cylindrical shapes.
  • the base body 121 is preferably in the shape of a cylinder, and a cylindrical hole passing through the middle of the base body 121 forms at least a part of the chamber, and the inner diameter of the hole is slightly larger than the outer diameter of the aerosol-forming product, which is convenient for placing the aerosol-forming product in the chamber to heat it. .
  • the base body 121 can be made of high temperature resistant and transparent materials such as quartz glass, ceramics or mica, and can also be made of other materials with high infrared transmittance, for example: high temperature resistant materials with infrared transmittance above 95% The material is not specifically limited here.
  • the infrared electrothermal coating 122 is formed on the surface of the base body 121 .
  • the infrared electrothermal coating 122 may be formed on the outer surface of the base body 121 and may also be formed on the inner surface of the base body 121 .
  • the infrared electrothermal coating 122 receives electric power to generate heat, thereby generating infrared rays of a certain wavelength, for example, far infrared rays of 8 ⁇ m ⁇ 15 ⁇ m.
  • a certain wavelength for example, far infrared rays of 8 ⁇ m ⁇ 15 ⁇ m.
  • the wavelength of infrared rays is not limited, but may be infrared rays of 0.75 ⁇ m to 1000 ⁇ m, preferably far infrared rays of 1.5 ⁇ m to 400 ⁇ m.
  • the infrared electrothermal coating 122 is preferably coated on the outer surface of the substrate 121 by fully stirring the far-infrared electrothermal ink, ceramic powder and inorganic adhesive, and then drying and curing for a certain period of time.
  • the thickness of the infrared electrothermal coating 122 is: 30 ⁇ m-50 ⁇ m; of course, the infrared electrothermal coating 122 can also be coated on the outer surface of the substrate 121 by mixing and stirring tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate in a certain proportion.
  • the conductive element including the first electrode 123 and the second electrode 124 arranged on the base body 121 at intervals, is used for feeding the electric power to the infrared electrothermal coating 122 .
  • Both the first electrode 123 and the second electrode 124 are at least partially electrically connected to the infrared electrocaloric coating 122 so that current can flow from one electrode to the other via the infrared electrocaloric coating 122 .
  • the polarities of the first electrode 123 and the second electrode 124 are opposite, for example, the first electrode 123 is a positive electrode and the second electrode 124 is a negative electrode; or, the first electrode 123 is a negative electrode and the second electrode 124 is a positive electrode.
  • the first electrode 123 and the second electrode 124 are both conductive coatings
  • the conductive coatings may be metal coatings or conductive tapes, etc.
  • the metal coatings may include silver, gold, palladium, platinum, copper, nickel, Molybdenum, tungsten, niobium or the above metal alloy materials.
  • the first electrode 123 and the second electrode 124 are symmetrically arranged along the central axis of the base body 121 .
  • the first electrode 123 includes a coupling electrode 1231 extending along the circumferential direction of the base body 121 and a strip electrode 1232 extending from the coupling electrode 1231 toward the proximal axial direction.
  • the coupling electrode 1231 is not in contact with the infrared electrothermal coating 122
  • the strip electrode 1232 is at least partially in contact with the infrared electrothermal coating 122 to form an electrical connection.
  • the second electrode 124 includes a coupling electrode 1241 extending in the circumferential direction of the base body 121 and a strip electrode 1242 extending from the coupling electrode 1241 toward the proximal end A in the axial direction.
  • the coupling electrode 1241 is not in contact with the infrared electrothermal coating 122
  • the strip electrodes 1242 are at least partially in contact with the infrared electrothermal coating 122 to form an electrical connection.
  • the distribution distance between the strip electrodes 1232 and the strip electrodes 1242 is uniform, which can ensure uniform heating of the infrared electrothermal coating 122 and improve the heating efficiency of the smoking article.
  • the arrangement of the coupling electrode 1231 and the coupling electrode 1241 is convenient for coupling with the battery cell 13, and avoids the problem that the wire connected at one end needs to pass through the heating area, which causes the wire to be easily damaged.
  • the infrared emitter composed of the infrared electrothermal coating 122 , the first electrode 123 and the second electrode 124 is limited to the example shown in FIG. 3 .
  • the infrared emitter may be formed from a thermally excited layer of infrared radiation, or from a thin film construction that may be wrapped around the substrate 121, or the like.
  • the heater 12 is not limited to an infrared heating method, and may also be a resistance heating, an electromagnetic heating, or the like. It is not limited to the circumferential heating method, but may also be a central heating method.
  • FIG. 4 is a schematic diagram of an electrode connector provided by an embodiment of the present application.
  • the aerosol generating device 100 further includes two electrode connectors, the two electrode connectors 125 are electrically connected to the first electrode 123 and the second electrode 124 respectively, and respectively extend the first electrode 123 and the second electrode 124 away from the base body 121 s position.
  • the following description takes the electrode connector 125 electrically connected to the first electrode 123 as an example:
  • the electrode connector 125 includes a contact portion and an extension portion 1253 .
  • the contact portion includes a body 1251 , and four cantilever arms 1252 hollowed out on the body 1251 .
  • the four cantilever arms 1252 are spaced apart along the circumferential direction of the base body 121 , and the number of the cantilever arms 1252 is not limited.
  • the aerosol generating device 100 further includes a first end cap 17 sleeved on the first end of the base body 121, and a second end cap 18 sleeved on the second end of the base body 121.
  • the first end cover 17 and the second end cover 18 are made of insulating, high temperature resistant and heat insulating materials.
  • the first end cap 17 includes a hollow tube 171 , a protruding portion 172 extending from one end of the hollow tube 171 along the radial direction of the chamber 11 , and a retaining portion extending in the axial direction from the protruding portion 172 .
  • Section 173 When the base body 121 is sleeved on the first end cap 17 , the holding portion 173 abuts on the outer surface of the base body 121 to hold the first end of the base body 121 .
  • the end of the heat insulating pipe 15 may abut on the protruding portion 172 .
  • the second end cover 18 includes an inner cylinder 181 and an outer cylinder 182 , and the base body 121 is detachably sleeved between the outer wall of the inner cylinder 181 and the inner wall of the outer cylinder 182 .
  • the inner cylinder 181 is in the shape of a hollow tube, and the airflow flows through the inner cylinder 181 to at least part of the cavity formed by the base body 121 .
  • the length in the axial direction of the inner cylinder 181 is slightly larger than the length in the axial direction of the coupling electrode 1231 or the coupling electrode 1241 .
  • the outer wall of the outer cylinder 182 has a plurality of abutting portions 1821 distributed in the circumferential direction and extending toward the heat insulation pipe 15 .
  • the arrangement of the protruding part 1822 is convenient for assembling with the heat insulating pipe 15 , so that the end of the heat insulating pipe 15 can abut on the protruding part 1822 .
  • the inner wall of the outer cylinder 182 also has a plurality of holding parts 1823 distributed at intervals.
  • the holding parts 1823 extend from the inner wall of the outer cylinder 182 toward the inner cylinder 181.
  • the holding parts 1823 abut On the outer surface of the base body 121 to hold the second end of the base body 121 .
  • the second end cover 18 is also provided with a circumferential stop portion for preventing the base body 121 from rotating. There are positioning recesses correspondingly matched with the positioning protrusions 183 . When the base body 121 is sleeved on the second end cover 18 , the positioning protrusions 183 are correspondingly matched with the positioning recesses, so as to prevent the base body 121 from rotating relative to the second end cover 18 in the circumferential direction.
  • the second end cap 18 is also provided with a via hole 184 for drawing out the extension portion 1253 of the electrode connector 125 .
  • a first sealing member 19 may be disposed between the first end cap 17 and the first end of the base body 121
  • a second sealing member 20 may be disposed between the second end cap 18 and the second end of the base body 121 , and The smoke generated inside the base body 121 is prevented from entering the space between the outer surface of the base body 121 and the heat insulation pipe 15, and the infrared electrothermal coating 122 and the conductive coating on the outer surface of the base body 121 are corroded, and the reliability of the heater 12 is improved.
  • the base body 121 After the base body 121 , the first end cap 17 , the second end cap 18 and the heat insulation pipe 15 are assembled together, since the two ends of the heat insulation pipe 15 abut on the protruding part 172 and the protruding part 1822 respectively, the base body 121 A substantially airtight closed chamber can be formed between the outer surface of the heat shield, the first end cap 17 , the second end cap 18 and the thermal insulation tube 15 , and the thermal insulation layer 16 can be arranged in the closed chamber to reduce the heat from the heater 12 to the aerosol generating device 100 . external transmission.
  • the thermal insulation layer 16 includes an aerogel layer wrapped around the outer surface of the base body 121, the aerogel layer can reduce the radiative heat transfer of the heater, and the closed chamber can reduce the air flow inside and outside the closed chamber, preventing the Aerogel powder off.
  • the extension length of the sealed space along the axial direction of the chamber 11 is greater than the extension length of the aerogel layer along the axial direction of the chamber 11 , so that the sealed space can cover the aerogel layer, which is beneficial to heat insulation.
  • the gap extending along the axial direction of the chamber 11 between the aerogel layer and the thermal insulation pipe ensures that the aerogel is fluffy and has a good thermal insulation effect, and at the same time, the air in the gap can further block the generation of heat toward aerosol Transfer out of the device 100 .
  • the heat insulation pipe 15 has an inner pipe 151 and an outer pipe 152 arranged along the radial direction of the chamber 11 , a sealed space is formed between the inner pipe 151 and the outer pipe 152 , and the sealed space is filled with gas.
  • the gas is at least one of inert gas, air, and carbon dioxide. It is preferable to use carbon dioxide with a lower thermal conductivity.
  • the thickness can be reduced by more than one third; for example, the thickness of a typical vacuum tube is 0.3 mm; in this example, the thickness of the inner tube 151 and the outer tube 152 can be 0.1 mm, and even thinner is feasible.
  • the material of the inner tube 151 and the outer tube 152 can be selected from PEEK (polyetheretherketone), stainless steel, etc., preferably made of stainless steel.
  • the tube wall thickness of the inner tube 151 is smaller than the tube wall thickness of the outer tube 152 .
  • the thinner inner tube 151 can effectively reduce the conduction of heat from the middle to the two ends of the thermal insulation tube 15, and avoid the problem that the temperature at both ends of the thermal insulation tube 15 is too high and the thermal insulation effect is not ideal.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)

Abstract

一种气溶胶生成装置(100)，包括腔室(11)，用于接收气溶胶形成基质；加热器(12)，用于加热接收于腔室(11)的气溶胶形成基质；隔热管(15)，设置在加热器(12)外；隔热管(15)具有沿腔室(11)径向方向设置的内管(151)和外管(152)，内管(151)和外管(152)之间形成密封空间；密封空间内填充有气体；隔热层(16)，设置在加热器(12)与隔热管(15)之间。该气溶胶生成装置(100)通过隔热层(16)可减少加热器(12)的辐射传热，设置在加热器(12)外的隔热管(15)可进一步防止热量向外传递，避免了气溶胶生成装置(100)的壳体(10)温度过高导致用户有烫手的感觉，提升了用户的体验。

Description

气溶胶生成装置
相关申请的交叉参考
本申请要求于2020年11月03日提交中国专利局，申请号为202022498844.7，名称为“气溶胶生成装置”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
本申请实施例涉及烟具技术领域，特别涉及一种气溶胶生成装置。
背景技术
诸如香烟和雪茄的吸烟物品在使用期间燃烧烟草以产生烟雾。已经尝试通过产生在不燃烧的情况下释放化合物的产品来为这些燃烧烟草的物品提供替代物。此类产品的示例是所谓的加热不燃烧产品，其通过加热烟草而不是燃烧烟草来释放化合物。
现有的一种加热不燃烧的烟具在被抽吸时，壳体温度较高，容易导致抽吸者感觉烫手，影响用户的体验感。为了避免该问题，通常是采用真空管来进行隔热，利用真空导热系数低的特点减少加热腔内的热量向外传递。然而由于真空管的内部高真空度，管壁需要承受内外压力差，因此真空管管壁的厚度较大，且其材质选取具有一定的局限。
发明内容
本申请提供一种气溶胶生成装置，旨在解决现有烟具的壳体温度较高容易导致抽吸者感觉烫手的问题。
本申请提供一种气溶胶生成装置，用于加热气溶胶形成基质以生成供吸食的气溶胶；包括：
腔室，用于接收气溶胶形成基质；
加热器，用于加热接收于所述腔室的气溶胶形成基质；
隔热管，设置在所述加热器外；所述隔热管具有沿所述腔室径向方向设置的内管和外管，所述内管和所述外管之间形成密封空间；所述密封空间内填充有气体；
隔热层，设置在所述加热器与所述隔热管之间。
本申请提供的气溶胶生成装置，通过隔热层可减少加热器的辐射传热，设置在加热器外的隔热管可进一步防止热量向外传递，避免了气溶胶生成装置的壳体温度过高导致用户有烫手的感觉，提升了用户的体验。
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是本申请实施方式提供的气溶胶生成装置示意图；
图2是本申请实施方式提供的气溶胶生成装置的剖面示意图；
图3是本申请实施方式提供的加热器示意图；
图4是本申请实施方式提供的电极连接件示意图；
图5是本申请实施方式提供的气溶胶生成装置中去掉部分器件后的剖面示意图；
图6是本申请实施方式提供的第一端盖示意图；
图7是本申请实施方式提供的第二端盖示意图。
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。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。
图1-图2是本申请实施方式提供的一种气溶胶生成装置100，包括：
壳体10，内部具有收容空间，可以收容加热器12、电芯13、电路14等等。
腔室11，用于接收气溶胶形成基质，例如烟支。
气溶胶形成基质是一种能够释放可形成气溶胶的挥发性化合物的基质。这种挥发性化合物可通过加热该气溶胶形成基质而被释放出来。气溶胶形成基质可以是固体或液体或包括固体和液体组分。气溶胶形成基质可吸附、涂覆、浸渍或以其它方式装载到载体或支承件上。气溶胶形成基质可便利地是气溶胶生成制品的一部分。
气溶胶形成基质可以包括尼古丁。气溶胶形成基质可以包括烟草，例如可以包括含有挥发性烟草香味化合物的含烟草材料，当加热时所述 挥发性烟草香味化合物从气溶胶形成基质释放。优选的气溶胶形成基质可以包括均质烟草材料。气溶胶形成基质可以包括至少一种气溶胶形成剂，气溶胶形成剂可为任何合适的已知化合物或化合物的混合物，在使用中，所述化合物或化合物的混合物有利于致密和稳定气溶胶的形成，并且对在气溶胶生成系统的操作温度下的热降解基本具有抗性。合适的气溶胶形成剂是本领域众所周知的，并且包括但不限于：多元醇，例如三甘醇，1,3-丁二醇和甘油；多元醇的酯，例如甘油单、二或三乙酸酯；和一元、二元或多元羧酸的脂肪酸酯，例如二甲基十二烷二酸酯和二甲基十四烷二酸酯。优选的气溶胶形成剂是多羟基醇或其混合物，例如三甘醇、1,3-丁二醇和最优选的丙三醇。
加热器12，用于产生红外线以辐射加热接收于腔室11的气溶胶形成基质。
电芯13提供用于操作气溶胶生成装置100的电力。例如，电芯13可以提供电力以对加热器12进行加热。此外，电芯13可以提供操作气溶胶生成装置100中所提供的其他元件所需的电力。
电芯13可以是可反复充电电池或一次性电池。电芯13可以是但不限于磷酸铁锂(LiFePO4)电池。例如，电芯13可以是钴酸锂(LiCoO2)电池或钛酸锂电池。
电路14可以控制气溶胶生成装置100的整体操作。电路14不仅控制电芯13和加热器12的操作，而且还控制气溶胶生成装置100中其它元件的操作。例如：电路14获取温度传感器感测到的加热器12的温度信息，根据该信息控制电芯13提供给加热器12的电力。
图3是本申请实施方式提供的一种加热器12，加热器12包括：
基体121，被构造成沿腔室11的轴向方向延伸并围绕腔室的管状。
具体地，基体121包括第一端(或者近端)和第二端(或者远端)， 延伸于第一端和第二端之间的表面。基体121可以为圆柱体状、棱柱体状或者其他柱体状。基体121优选为圆柱体状，贯穿基体121中部的圆柱体状孔形成至少部分腔室，孔的内径略大于气溶胶形成制品的外径，便于将气溶胶形成制品置于腔室内对其进行加热。
基体121可以由石英玻璃、陶瓷或云母等耐高温且透明的材料制成，也可以由其它具有较高的红外线透过率的材料制成，例如：红外线透过率在95％以上的耐高温材料，具体地在此不作限定。
红外电热涂层122形成在基体121的表面上。红外电热涂层122可以形成在基体121的外表面上，也可以形成在基体121的内表面上。
红外电热涂层122接受电功率产生热量，进而产生一定波长的红外线，例如：8μm～15μm的远红外线。当红外线的波长与气溶胶形成基质的吸收波长匹配时，红外线的能量易于被气溶胶形成基质吸收。红外线的波长不作限定，可以为0.75μm～1000μm的红外线，优选的为1.5μm～400μm的远红外线。
红外电热涂层122优选的由远红外电热油墨、陶瓷粉末和无机粘合剂充分搅拌均匀后涂覆在基体121的外表面上，然后烘干固化一定的时间，红外电热涂层122的厚度为30μm-50μm；当然，红外电热涂层122还可以由四氯化锡、氧化锡、三氯化锑、四氯化钛以及无水硫酸铜按一定比例混合搅拌后涂覆到基体121的外表面上；或者为碳化硅陶瓷层、碳纤维层、碳纤维复合层、锆钛系氧化物陶瓷层、锆钛系氮化物陶瓷层、锆钛系硼化物陶瓷层、锆钛系碳化物陶瓷层、铁系氧化物陶瓷层、铁系氮化物陶瓷层、铁系硼化物陶瓷层、铁系碳化物陶瓷层、稀土系氧化物陶瓷层、稀土系氮化物陶瓷层、稀土系硼化物陶瓷层、稀土系碳化物陶瓷层、镍钴系氧化物陶瓷层、镍钴系氮化物陶瓷层、镍钴系硼化物陶瓷层、镍钴系碳化物陶瓷层或高硅分子筛陶瓷层中的一种；红外电热涂层 还可以是其他材料涂层，例如：以碳为部分或全部组成元素的衍生物和化合物，包括但不限于碳纳米管、碳纳米管薄膜、石墨烯、碳纤维、碳纤维薄膜、碳膜、碳纤维布。
导电元件，包括间隔设置于基体121上的第一电极123和第二电极124，用于将所述电功率馈送至红外电热涂层122。
第一电极123和第二电极124均至少部分地与红外电热涂层122电性连接，以使得电流可以经由红外电热涂层122从其中一个电极流向另一个电极。第一电极123和第二电极124的极性相反，例如：第一电极123为正极、第二电极124为负极；或者，第一电极123为负极、第二电极124为正极。
在本示例中，第一电极123和第二电极124均为导电涂层，导电涂层可以为金属涂层或导电胶带等，金属涂层可以包括银、金、钯、铂、铜、镍、钼、钨、铌或上述金属合金材料。
在本示例中，第一电极123和第二电极124沿基体121的中心轴对称设置。
第一电极123包括沿基体121周向方向延伸的耦接电极1231以及自耦接电极1231朝向所述近端轴向方向延伸的条形电极1232，耦接电极1231不与红外电热涂层122接触，条形电极1232至少部分与红外电热涂层122接触以形成电连接。
第二电极124包括沿基体121周向方向延伸的耦接电极1241以及自耦接电极1241朝向近端A轴向方向延伸的条形电极1242，耦接电极1241不与红外电热涂层122接触，条形电极1242至少部分与红外电热涂层122接触以形成电连接。
由上述可以看出，条形电极1232和条形电极1242之间分布距离均匀，可确保红外电热涂层122发热均匀，提升烟具的加热效率。耦接电 极1231和耦接电极1241的设置，便于与电芯13耦接，且避免了一端连接的导线需要经过发热区域导致导线容易损坏的问题。
需要说明的是，由红外电热涂层122、第一电极123和第二电极124构成的红外发射器，并限于图3的示例。在其他示例中，红外发射器可由热激发的红外辐射层形成、或者由可卷绕在基体121上的薄膜构造形成等等。
还需要说明的是，在其他示例中，加热器12并不限定于为红外加热方式，还可以为电阻加热、电磁加热等等。也不限定于为周向加热方式，还可以为中心加热方式。
图4是本申请实施方式提供的电极连接件示意图。
气溶胶生成装置100还包括两个电极连接件，两个电极连接件125分别与第一电极123和第二电极124电连接，且分别将第一电极123和第二电极124延伸到远离基体121的位置。
以下以与第一电极123电连接的电极连接件125为例进行说明：
电极连接件125包括接触部和延伸部1253。接触部包括本体1251、镂空形成在本体1251上的四个悬臂1252，四个悬臂1252沿基体121周向方向间隔分布，悬臂1252的数量也不作限定。四个悬臂1252与耦接电极1231抵接时能够产生弹性力，实现与耦接电极1231的电连接；延伸部1253自本体1251朝向远离基体121的位置延伸，延伸部124用于耦接电芯13。
请参考图5-图7所示，气溶胶生成装置100还包括套接在基体121的第一端上的第一端盖17、基体121的第二端上的第二端盖18，套设于基体121外的隔热管15。
第一端盖17、第二端盖18选用绝缘的、耐高温隔热的材质。
如图6所示，第一端盖17包括中空管171，自中空管171的一端沿 沿腔室11径向方向延伸的凸出部172，自凸出部172轴向方向延伸的保持部173。当基体121被套设于第一端盖17时，保持部173抵接在基体121的外表面以保持基体121的第一端部。隔热管15的端部可抵接在凸出部172上。
如图7所示，第二端盖18包括内筒181和外筒182，基体121可拆卸地套设在内筒181的外壁与外筒182的内壁之间。
内筒181呈中空管状，气流通过内筒181流向基体121形成的至少部分腔室。内筒181的轴向方向的长度略大于耦接电极1231或者耦接电极1241的轴向方向的长度。外筒182的外壁上具有周向分布的多个朝向隔热管15延伸的抵接部1821，外筒182的端部具有沿腔室11径向方向延伸的凸出部1822，抵接部1821和凸出部1822的设置，便于与隔热管15装配，使得隔热管15的端部可抵接在凸出部1822上。外筒182的内壁还具有多个间隔分布的保持部1823，保持部1823自外筒182的内壁朝向内筒181方向延伸，当基体121被套设于第二端盖18时，保持部1823抵接在基体121的外表面以保持基体121的第二端部。
第二端盖18还设置有用于阻止基体121转动的周向止动部，周向止动部包括在第二端盖18朝向基体121一侧凸设的定位凸起183，基体121的管壁开设有与定位凸起183对应配合的定位凹口。当基体121被套设于第二端盖18时，定位凸起183与定位凹口对应配合，以使得阻止基体121相对于第二端盖18周向转动。在第二端盖18上还设置有用于引出电极连接件125的延伸部1253的过孔184。
进一步地，第一端盖17与基体121的第一端部之间可设置第一密封件19，第二端盖18与基体121的第二端部之间可设置第二密封件20，可防止基体121内部产生的烟气进入基体121的外表面与隔热管15之间的空间，腐蚀基体121的外表面的红外电热涂层122和导电涂层，提 高加热器12工作的可靠性。
在基体121、第一端盖17、第二端盖18、隔热管15一起装配好之后，由于隔热管15的两端分别抵接在凸出部172、凸出部1822上，基体121的外表面、第一端盖17、第二端盖18、隔热管15之间可形成大致密封的封闭室，封闭室内可设置隔热层16，减少加热器12的热量朝气溶胶生成装置100外传递。
在本示例中，隔热层16包括包裹在基体121的外表面上的气凝胶层，气凝胶层可减少加热器的辐射传热，同时封闭室可减少封闭室内外的空气流动，防止气凝胶掉粉。密封空间沿腔室11轴向方向的延伸长度大于气凝胶层沿腔室11轴向方向的延伸长度，这样可使得密封空间可覆盖气凝胶层，有利于隔热。进一步地，气凝胶层与所述隔热管之间沿腔室11轴向方向延伸的间隙，确保气凝胶蓬松，隔热效果好，同时该间隙内的空气可进一步阻挡热量朝气溶胶生成装置100外传递。
隔热管15具有沿腔室11径向方向设置的内管151和外管152，内管151和外管152之间形成密封空间，密封空间内填充有气体。
在本示例中，气体为惰性气体、空气、二氧化碳中的至少一种。优选的采用导热系数较低的二氧化碳。
由于内管151和外管152之间密封的是气体，无需承受内外较大的压力差，因此隔热管15的结构强度要求相对现有的真空管可以适当降低，内管151和外管152的厚度可以减薄三分之一以上；例如，一般的的真空管的厚度为0.3mm；在本示例中，内管151和外管152的厚度可以为0.1mm，甚至更薄也是可行的。内管151和外管152的材质可选用PEEK(聚醚醚酮)、不锈钢等等，优选的采用不锈钢材料制备。
在本示例中，内管151的管壁厚度小于外管152的管壁厚度。较薄的内管151，可以有效减少热量从中间向隔热管15的两端的传导，避免 了隔热管15两端温度过高，隔热效果不理想的问题。
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. 一种气溶胶生成装置，用于加热气溶胶形成基质以生成供吸食的气溶胶；其特征在于，包括：
    腔室，用于接收气溶胶形成基质；
    加热器，用于加热接收于所述腔室的气溶胶形成基质；
    隔热管，设置在所述加热器外；所述隔热管具有沿所述腔室径向方向设置的内管和外管，所述内管和所述外管之间形成密封空间；所述密封空间内填充有气体；
    隔热层，设置在所述加热器与所述隔热管之间。
  2. 根据权利要求1所述的气溶胶生成装置，其特征在于，所述内管的管壁厚度小于所述外管的管壁厚度。
  3. 根据权利要求1或2所述的气溶胶生成装置，其特征在于，所述气体为惰性气体、空气、二氧化碳中的至少一种。
  4. 根据权利要求1或2所述的气溶胶生成装置，其特征在于，所述隔热层包括包裹在所述加热器外的气凝胶层。
  5. 根据权利要求4所述的气溶胶生成装置，其特征在于，所述密封空间沿所述腔室轴向方向的延伸长度大于所述气凝胶层沿所述腔室轴向方向的延伸长度。
  6. 根据权利要求4所述的气溶胶生成装置，其特征在于，所述气凝胶层与所述隔热管之间具有沿所述腔室轴向方向延伸的间隙。
  7. 根据权利要求1或2所述的气溶胶生成装置，其特征在于，还包括第一端盖和第二端盖，所述第一端盖和所述第二端盖分别套接在所述加热器的两端；
    所述加热器、所述隔热管、所述第一端盖以及所述第二端盖之间形成封闭室，所述隔热层设置在所述封闭室内。
  8. 根据权利要求7所述的气溶胶生成装置，其特征在于，所述第一端盖具有沿所述腔室径向方向延伸的第一凸出部，所述第二端盖具有沿所述腔室径向方向延伸的第二凸出部；
    所述隔热管的两端分别抵接在所述第一凸出部和所述第二凸出部。
  9. 根据权利要求8所述的气溶胶生成装置，其特征在于，还包括第一密封件和第二密封件；
    所述第一密封件设置在所述加热器的一端与所述第一端盖之间，所述第二密封件设置在所述加热器的另一端与所述第二端盖之间。
  10. 根据权利要求1或2所述的气溶胶生成装置，其特征在于，所述加热器包括：
    基体，具有一表面；
    红外发射器，设置在所述表面上；所述红外发射器用于产生红外线以辐射加热接收于所述腔室的气溶胶形成基质。
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