WO2019232666A1 - 非燃烧烟具 - Google Patents

非燃烧烟具 Download PDF

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Publication number
WO2019232666A1
WO2019232666A1 PCT/CN2018/089736 CN2018089736W WO2019232666A1 WO 2019232666 A1 WO2019232666 A1 WO 2019232666A1 CN 2018089736 W CN2018089736 W CN 2018089736W WO 2019232666 A1 WO2019232666 A1 WO 2019232666A1
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WO
WIPO (PCT)
Prior art keywords
extractor
smoking article
end portion
groove
aerosol
Prior art date
Application number
PCT/CN2018/089736
Other languages
English (en)
French (fr)
Inventor
严伍安
孙国立
饶世林
Original Assignee
绿烟实业（深圳）有限公司
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 绿烟实业（深圳）有限公司 filed Critical 绿烟实业（深圳）有限公司
Priority to PCT/CN2018/089736 priority Critical patent/WO2019232666A1/zh
Priority to JP2020568372A priority patent/JP7257424B2/ja
Priority to EP18921698.9A priority patent/EP3804545A4/en
Publication of WO2019232666A1 publication Critical patent/WO2019232666A1/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
    • A24F40/85—Maintenance, e.g. cleaning
    • 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
    • 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

Definitions

  • the present disclosure relates to the technical field of smoking articles, and in particular to a non-burning smoking article.
  • Non-burning smoking articles typically generate smoke from smoking articles by heating.
  • This non-burning smoking article has a heating cavity for containing smoking articles.
  • the heater is started to generate heat to heat the smoking article, so that the smoking article generates smoke for the user. Smoking.
  • FIG. 1 discloses an aerosol generating device including a housing, a heater element, an air inlet 26 and an air flow channel 28.
  • the housing has a proximal end and a distal end and includes at least one outer surface and an inner surface, the inner surface defining at the proximal end of the housing an open cavity in which an end of the aerosol-forming substrate is housed,
  • the cavity has a longitudinal extension between its proximal and distal ends.
  • a heater element is located within the cavity and is configured to heat the aerosol-forming substrate contained in the cavity.
  • the airflow channel 28 extends from the air inlet 30 to the distal end of the cavity between the inner and outer surfaces of the housing.
  • the airflow channel 28 is arranged between the inner surface and the outer surface of the housing, the airflow channel is relatively narrow. After entering foreign matter such as dust during suction, the airflow channel becomes narrow or even blocked , Resulting in poor suction. Moreover, users often cannot easily clean such a narrow airflow channel arranged between the inner surface and the outer surface of the housing.
  • the casing of the aerosol generating device in addition to forming the air flow channel, also houses various components such as the battery and the control circuit. It is generally difficult for a user to remove the casing separately for cleaning.
  • the present disclosure aims to provide a non-burning smoking article capable of solving one of the above-mentioned problems existing in the prior art.
  • a non-burning smoking article including: a main body formed with a heating cavity; a heater for heating an aerosol-forming substrate of a smoking article; and an extractor,
  • the extractor is used for receiving an aerosol-forming substrate of a smoking article.
  • the extractor is installed in a heating cavity of the main body.
  • the extractor includes a first end and a second end opposite to each other.
  • An air inlet channel in the form of a groove is provided on an inner peripheral wall of the extractor, and the air inlet channel extends from a second end portion of the extractor to a first end portion of the extractor.
  • a form of air intake passage is located between the inner peripheral wall of the extractor and the outer peripheral surface of the smoking article.
  • the inner peripheral wall of the extractor has a non-circular contour, and a gap between the inner peripheral wall of the non-circular contour and the outer peripheral wall of the smoking article forms an air inlet channel in the form of the groove.
  • the air intake passage includes a plurality of grooves formed uniformly on an inner peripheral wall of the extractor along an inner periphery of the extractor.
  • the groove is a linear groove extending straight from the second end to the first end.
  • the groove is a spiral groove that spirally extends from the second end portion to the first end portion.
  • the air inlet passage includes an air inlet provided at a second end of the extractor, and the air inlet is in fluid communication with a corresponding groove.
  • a through hole is provided through an end wall of the first end portion of the extractor.
  • the first end may include a gauze or wire mesh that will allow air to flow through.
  • a heat insulation groove is provided on an outer peripheral wall of the extractor and / or a cavity wall of the heating cavity.
  • a thermal insulation material can be placed in the thermal insulation tank.
  • FIG. 1 is a schematic diagram of a related art aerosol generating device provided with an air flow channel.
  • FIG. 2 is a partial cross-sectional view of a non-burning smoking article along an air intake passage according to an embodiment of the present disclosure.
  • FIG. 3 is a top view of the non-burning smoking article of FIG. 2.
  • first”, “second”, etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as “first”, “second”, etc. may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of “plurality” is two or more, unless explicitly defined otherwise.
  • All directional indicators in this disclosure are used to explain the relative among components in a certain posture (generally the posture shown in the drawings) The positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.
  • the terms “install”, “connected”, “coupled”, “connected”, “attached”, “fixed” and the like shall be understood in a broad sense unless otherwise specified and limited, for example, they may be
  • a fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components.
  • a fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components.
  • aerosol-forming substrate or “smoky substrate” (the two are interchangeable) relate to a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds can be released by heating the aerosol-forming matrix.
  • the aerosol-forming substrate may conveniently be part of an aerosol-generating article or a smoking article.
  • an aerosol is a suspension of solid particles or droplets or both solid particles and droplets in a gas, such as air.
  • aerosol-generating article or “smoky article” (both interchangeable) refers to an article that includes an aerosol-forming substrate or a smoking substrate that is capable of releasing aerosol-forming volatile compounds. .
  • the aerosol-generating article or smoking article generates an aerosol that can be directly inhaled into the user's lungs through the user's mouth. Aerosol-generating or smoking articles may typically be disposable.
  • the term “smoke article” is generally used below.
  • a non-burning smoking article provided according to an embodiment of the present disclosure is schematically shown with reference to FIG. 2.
  • the non-burning smoking article includes a casing 1, a main body 2, a heater 21, and an extractor 3.
  • the main body 2 includes a cavity wall 22 for forming a heating cavity.
  • the casing 1 is disposed outside the heating chamber of the main body 2.
  • the heater 21 is disposed in the heating chamber.
  • the extractor 3 is installed in the heating cavity of the main body 2, and a receiving cavity for receiving the smoking product 4 is provided inside the extractor 3.
  • the extractor 3 may be in the form of a sleeve, having opposite first and second ends, the first end having an end wall, and the second end being open for smoking
  • the article is inserted into the receiving cavity.
  • the end wall of the first end portion supports or bears against the smoking article 4 during use.
  • An eyelet through which the heater 21 passes is provided in an end wall of the first end portion.
  • the smoking article 4 is inserted into the extractor 3 from the open second end portion of the extractor 3, and is inserted until it comes into contact with the end wall of the first end portion.
  • the cavity wall 22 is in the form of a generally cylindrical tube with an inner diameter slightly larger than the outer diameter of the extractor 3 so that the extractor 3 can be slidably received in the heating cavity.
  • the smoking article 4 has an elongated cylindrical shape, and includes an aerosol-forming substrate 41 and a filter rod, which are successively arranged and aligned coaxially.
  • the aerosol-forming substrate 41 and the filter rod are wrapped with an external paper wrapper.
  • a smoking article which may include other components.
  • the heater 21 extends through an eyelet in the first end of the extractor 3 and is inserted into the aerosol-forming substrate 41 of the smoking article 4 located in the receiving cavity of the extractor 3.
  • an intake passage extending from the second end portion to the first end portion of the extractor 3 is provided on the inner peripheral wall of the extractor 3.
  • the intake passage is a groove 31 formed on an inner peripheral wall of the extractor 3.
  • the air intake passage is a plurality of grooves 31 formed uniformly on the inner peripheral wall of the extractor 3 along the inner periphery of the extractor 3.
  • the groove 31 is a linear groove extending straight from the second end to the first end of the extractor.
  • the groove 31 is a spiral groove (not shown) that spirally extends from the second end portion of the extractor to the first end portion.
  • the spiral airflow formed can take away more heat from the smoking article. And the dust or other debris carried by the air flow is more likely to accumulate near the second end of the extractor under the driving of the centrifugal force, which is more convenient for subsequent cleaning.
  • the inner peripheral wall of the extractor 3 in the form of a sleeve may have a non-circular contour (not shown), such as an oval contour, a triangular contour, a polygonal contour, and the like.
  • the gap between the inner peripheral wall of the non-circular contour and the outer peripheral wall of the circular contour of the smoking article 4 forms an air intake channel in the form of the groove.
  • the outer peripheral wall of the smoking article 4 may have any contour different from it, as long as a gap can be formed between the two, such air intake can be formed. aisle.
  • the extractor has a pentagonal inner peripheral wall
  • the smoking article has a hexagonal outer peripheral wall
  • a part of the inner peripheral wall of the extractor 3 may be formed with a profile matching the outline of the outer peripheral wall of the smoking article.
  • the air intake passage has an air inlet 30 at the second end of the extractor 3.
  • Each of the air inlets 30 is in fluid communication with a corresponding groove.
  • the air inlet 30 is actually an end portion of the corresponding groove 30.
  • the size of the air inlet 30 may be selected by the designer and may be selected to provide a desired suction resistance through the device.
  • a through hole 32 is provided through an end wall of the first end portion of the extractor 3.
  • the number and size of the through holes 32 correspond to the number and size of the grooves 31.
  • Each through hole 32 may be aligned with a corresponding groove 31.
  • the number, position, and size of the through holes can be changed according to specific operating parameters.
  • a groove (not shown) for guiding the airflow into the aerosol-forming substrate may be formed inside the end wall.
  • the user places the smoking article 4 including the aerosol-forming substrate 41 in the receiving cavity of the extractor 3.
  • the heater 21 extends through an eyelet in an end wall of the first end portion of the extractor 3 and is inserted into the aerosol-forming substrate 41 of the smoking article 4.
  • the user activates the heater 21, and the heater 21 heats the aerosol-forming substrate 41 to form an aerosol.
  • air from the external environment flows from the air inlet 30 located at the second end portion of the extractor 3 (ie, the upper end portion in FIG. 2) In the groove 31 between the extractor and the smoking article.
  • the air travels along the groove 31 to the vicinity of the first end of the extractor 3 and enters the smoke through the gap between the inner wall of the first end of the extractor 3 and the aerosol-forming substrate end of the smoking article 4
  • the aerosol-forming substrate 41 of the product and / or enters the gap between the main body 2 and the first end of the extractor 3 through the through-hole 32, and then enters the smoking article through the eyelet or other eyelet through the heater
  • the aerosol is formed in the substrate 41.
  • the air stream entering the aerosol-forming substrate 41 carries the aerosol formed by heating the aerosol-forming substrate 41 and travels through the aerosol-forming substrate 41 and finally to the filter rod of the smoking article 4, thereby being drawn by the user Suck into his mouth for him to suck.
  • the air inlet is provided at the second end portion of the extractor, instead of being typically provided on the casing or the side of the body as in the prior art. In this position, the possibility of the air inlet being inadvertently blocked by the user's hand during use is very small, ensuring smooth suction.
  • the air intake channel in the form of a groove is located between the inner peripheral wall of the extractor and the outer peripheral surface of the smoking article, and the airflow formed during the suction takes away the heat emitted from the smoking article.
  • the air is thus preheated before entering the aerosol-forming substrate 41.
  • This preheating of the air not only improves the efficiency of the smoking set, but also ensures a more uniform temperature distribution within the aerosol-forming substrate.
  • the heat emitted from the smoking article has no time to be transferred to the extractor, the cavity wall and the casing, it is directly taken away by the airflow, thereby further effectively reducing the use of smoking equipment.
  • the temperature of the surface of the casing which allows the user to hold the smoking article more comfortably.
  • the air intake passage in the form of a groove is provided on the inner peripheral wall of the extractor, the receiving cavity of the extractor Large space allows users to easily reach the groove for simple cleaning.
  • the extractor is a separate component, the user can easily disassemble the extractor and fully clean its internal surface, such as chemical immersion or using tools.
  • a heat insulation groove may be provided on the outer peripheral wall of the extractor 3, the cavity wall 22 and / or the inner peripheral wall of the casing 1.
  • a thin layer is left, and the recess formed is a heat insulation groove. Since the heat insulation groove forms a heat insulation space, the heat emitted by the heater during the heating process reaches the heat insulation groove and is blocked by air in the heat insulation space, thereby reducing the heat transferred to the casing 1.
  • a thermal insulation material may be placed in the thermal insulation tank.
  • the smoking article is a heated smoking article that includes an aerosol-forming substrate that is intended to be heated rather than burned in order to release volatile compounds that can form an aerosol.
  • the aerosol formed by heating the aerosol-forming substrate may contain less known harmful components than may be generated by combustion or thermal degradation of the aerosol-forming substrate.
  • the smoking article may be a tobacco rod, or may include a tobacco rod.
  • the heater includes one or more heating elements.
  • the heating element may include a resistive material.
  • the heating element may be an infrared heating element, a photon source, or an induction heating element.
  • the heating element may take any suitable form.
  • the heating element may take the form of a heating blade.
  • the heating element may take the form of a housing or a base body with different conductive parts, or a resistive metal tube.
  • there may be one or more heated needles or rods that extend through the interior of the aerosol-forming substrate.
  • Other alternatives include heating wires or filaments, such as Ni-Cr (nickel-chromium), platinum, tungsten, or alloy wires or heating plates.
  • the heating element may be deposited in or on a rigid support material.
  • one or more perforations may be provided in the first end of the extractor, and the number of perforations may be more than the number of heating elements of the heater and may be equal to the number of heating elements of the heater. .
  • the perforations should be sized to allow the heater to pass freely.
  • the perforations may have any suitable shape, for example, the perforations may be rectangular or circular.
  • the shape of the perforations may be the same as the cross-sectional shape of the heating element (s).
  • the first end may include a gauze or wire mesh that will allow air to flow through.
  • the aerosol-forming substrate may be a solid aerosol-forming substrate.
  • the aerosol-forming substrate may include both solid and liquid components.
  • the aerosol-forming substrate may include a tobacco-containing material that includes volatile tobacco flavoring compounds that are released from the substrate upon heating.
  • the aerosol-forming substrate may include a tobacco-free material.
  • the aerosol-forming substrate may further include an aerosol-forming agent. Examples of suitable aerosol-forming agents are glycerol and propylene glycol.
  • the present disclosure may include any feature or combination of features implicitly or explicitly disclosed herein, or a summary thereof, and is not limited to any of the limited scope listed above. Any of the elements, features, and / or structural arrangements described herein may be combined in any suitable manner.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

一种非燃烧烟具，包括：主体，所述主体形成有加热腔；加热器，所述加热器用来加热发烟制品的气雾形成基体；和提取器，所述提取器用来接收发烟制品的气雾形成基体，所述提取器安装于主体的加热腔中，所述提取器包括相对的第一端部和第二端部，其中，在所述提取器的内周壁上设置有凹槽形式的进气通道，所述进气通道从所述提取器的第二端部延伸到所述提取器的第一端部，在使用时，所述凹槽形式的进气通道位于所述提取器的内周壁与发烟制品的外周表面之间。该进气通道不仅提高了非燃烧烟具的热效率，而且易于清理。

Description

非燃烧烟具 技术领域
本公开涉及烟具技术领域，尤其是涉及一种非燃烧烟具。
背景技术
随着对身体健康关注度的持续上升，人们逐渐意识到了将发烟制品进行燃烧产生烟雾用以吸食这一传统抽烟方式对身体的危害，因此开发了非燃烧烟具。
现有的非燃烧烟具典型地通过加热的方式使发烟制品产生烟雾。这种非燃烧烟具具有容纳发烟制品的加热腔，通过将发烟制品插入至非燃烧烟具的加热腔中，启动加热器进行发热来加热发烟制品，以使发烟制品产生烟雾供使用者吸食。
图1示出的现有技术披露了一种气溶胶发生装置，包括壳体、加热器元件、进气口26以及气流通道28。壳体具有近侧端和远侧端并包括至少一个外表面和一个内表面，所述内表面在壳体的近侧端处限定其中容置气溶胶形成基材的端部敞开的空腔，所述空腔在它的近侧端和远侧端之间具有纵向延伸部。加热器元件位于所述空腔内，其被构造为加热容置于空腔中的气溶胶形成基材。气流通道28在壳体的内表面与外表面之间从进气口30延伸至空腔的远侧端。
本申请人发现，在实际使用中，由于气流通道28布置在壳体的内表面与外表面之间，该气流通道比较狭窄，抽吸期间进入灰尘等异物后，造成气流通道变窄，甚至阻塞，导致抽吸不畅。而且，使用者通常无法容易地清理布置在壳体的内表面与外表面之间的这么狭窄的气流通道。此外，气溶胶发生装置的壳体除了形成气流通道外，还容纳电池、控制电路等各个部件，使用者一般难以将壳体单独地拆卸下来进行清理。
发明内容
因此，本公开旨在提供一种非燃烧烟具，其能够解决现有技术中存在的上述问题之一。
根据本公开的一方面，提供了一种非燃烧烟具，其包括：主体，所述主体形成有加热腔；加热器，所述加热器用来加热发烟制品的气雾形成基体；和提取器，所述提取器用来接收发烟制品的气雾形成基体，所述提取器安装于主体的加热腔中，所述提取器包括相对的第一端部和第二端部，其中，在所述提取器的内周壁上设置有凹槽形式的进气通道，所述进气通道从所述提取器的第二端部延伸到所述提取器的第一端 部，在使用时，所述凹槽形式的进气通道位于所述提取器的内周壁与发烟制品的外周表面之间。
优选地，所述提取器的内周壁具有非圆形轮廓，该非圆形轮廓的内周壁与发烟制品的外周壁之间的空隙形成所述凹槽形式的进气通道。
优选地，所述进气通道包括沿所述提取器的内周均匀地形成在所述提取器的内周壁上的多条凹槽。
优选地，所述凹槽为从所述第二端部笔直地延伸到所述第一端部的线性凹槽。
优选地，所述凹槽为从所述第二端部螺旋地延伸到所述第一端部的螺旋形凹槽。
优选地，所述进气通道包括在所述提取器的第二端部处设置的进气口，所述进气口与相应的凹槽流体连通。
优选地，贯穿提取器的第一端部的端壁设置有通孔。可选地，存在多个通孔，每个通孔与相应的凹槽对准。
优选地，第一端部可以包括纱网或丝网，该纱网或丝网将允许空气流过。
优选地，在所述提取器的外周壁和/或所述加热腔的腔壁上设置有隔热槽。在一实施例中，隔热槽内可以放置隔热材料。
本领域技术人员通过参照下面列出的附图阅读相应实施例的如下详细描述，将会明白相应实施例以及各种另外的实施例的特征、优点和细节。此外，下面所讨论的附图的各个特征不一定必须按比例绘制。附图中的各个特征和元件的尺寸可以扩大或缩小，以更清楚地示出本公开的实施例。
附图说明
下面结合附图和实施例对本公开进一步说明，其中相同的参考标号在整个附图及其描述中指代相似或相同的元件。
图1是设置有气流通道的现有技术的气溶胶发生装置的示意图。
图2是依照本公开实施例的非燃烧烟具沿进气通道的局部剖视图。
图3是图2的非燃烧烟具的俯视图。
具体实施方式
下面描述本公开的各个示例性实施例。在本公开中，仅为了解释起见，在附图中示意性地描绘各个系统、方法、结构和装置，但未描述实际系统、方法、结构和装置 的所有特征，比如熟知的功能或结构并未详细描述，以避免不必要的细节使得本公开模糊不清。当然应该明白，在任何实际应用时，需要作出许多具体实施决策以达到开发者或使用者的特定目标，并且需要遵从与系统相关和行业相关的限制，这些特定目标可能随着实际应用的不同而不同。此外，应该明白，这样的具体实施决策虽然是复杂的且耗费大量时间的，然而这对于受益于本申请的本领域普通技术人员来说是例行任务。
本公开中使用的术语和短语应该被理解和解释为具有与相关领域技术人员对这些术语和短语的理解一致的含义。本公开中的术语或短语的一致用法不意在暗示术语或短语的特殊定义，即，与本领域技术人员所理解的普通和惯常含义不同的定义。对于意在具有特殊定义的术语或短语，这种特殊定义将在说明书中以定义方式明确列出，直接且毫不含糊地给出术语或短语的特殊定义。
除非内容要求，否则在本公开中，词语“包括”及其变型、诸如“包含”将以开放式的、包容的意义来解释，也就是如“包括但不限于”。
在本公开中，参考术语“一实施例”、“一个实施例”、“一些实施例”、“一示例”、“具体示例”或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、步骤、材料或者特点包含于本公开的至少一个实施例或示例中。因而，整个说明书中不同地方出现的短语“在一个实施例中”或者“在一实施例中”等等不是必须都涉及相同实施例。而且，所描述的具体特征、结构、步骤、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式组合。
正如在本公开中使用的，除非另有明确的规定和限定，单数形式的不定冠词“一”以及定冠词“该”包括一个或多个指称对象。还应该注意的是，除非另有明确的规定和限定，术语“或”从意思上来说一般包括“和/或”。为了这种说明的目的，以“A或B”的形式的词组意味着“(A)、(B)或者(A和B)”。为了说明的目的，以“A、B或C中的至少一个”的形式的词组意味着“(A)、(B)、(C)、(A和B)、(A和C)、(B和C)或者(A、B和C)”。
此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或多个该特征。在本公开的描述中，“多个”的含义是两个或两个以上，除非另有明确的限定。
本公开中的所有方向性指示，例如上、下、左、右、前、后等等用于解释在某一 特定姿态(一般是如附图所示的姿态)下的各部件之间的相对位置关系、运动情况等等，如果该特定姿态发生改变，则该方向性指示也相应地随之改变。
在本公开中，除非另有明确的规定和限定，术语“安装”、“相连”、“联接”、“连接”、“附接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
如这里使用的那样，术语“气雾形成基体”或“发烟基体”(两者可互换)涉及能够释放易挥发化合物的基体，这些易挥发化合物可形成气雾。这样的易挥发化合物可以通过加热气雾形成基体而释放。气雾形成基体可以方便地是气雾生成制品或发烟制品的一部分。如对于本领域技术人员已知的那样，气雾是固体颗粒或液滴或者固体颗粒和液滴两者在气体(如空气)中的悬浮物。
如这里使用的那样，术语“气雾生成制品”或“发烟制品”(两者可互换)是指包括能够释放可形成气雾的易挥发化合物的气雾形成基体或发烟基体的制品。气雾生成制品或发烟制品产生通过使用者的嘴直接可吸入到使用者的肺中的气雾。气雾生成制品或发烟制品典型地可以是一次性的。下文一般使用术语“发烟制品”。
下面将详细解释本公开的示例性实施例。
根据本公开的实施例提供的非燃烧烟具参照图2示意性所示。该非燃烧烟具包括外壳1、主体2、加热器21和提取器3。主体2包括用于形成加热腔的腔壁22。外壳1设置于主体2的加热腔外部。加热器21设置在加热腔内。提取器3安装于主体2的加热腔中，提取器3内部开设有用于接收发烟制品4的接收腔。
在该实施例中，提取器3可以为套筒的形式，具有相对的第一端部和第二端部，第一端部具有端壁，第二端部为敞口的，以供发烟制品插入到接收腔内。第一端部的端壁在使用期间支承或抵靠发烟制品4。在第一端部的端壁中设置有供加热器21穿过的孔眼。发烟制品4从提取器3的敞口的第二端部插入到提取器3内部，并一直插入到与其第一端部的端壁相抵接的状态。在这个实施例中，腔壁22为大体圆柱形管的形式，具有比提取器3的外径稍大的内径，使得提取器3可以滑动地接收在加热腔内。
如图所示，发烟制品4具有细长圆柱形形状，并且包括气雾形成基体41和过滤嘴棒，该气雾形成基体41和过滤嘴棒接续布置并且共轴线对准。气雾形成基体41和过滤嘴棒包裹有外部纸包裹件。这里仅仅是发烟制品的示意性表示，其可以包括其他 部件。
加热器21延伸穿过提取器3的第一端部中的孔眼并且插入到位于提取器3的接收腔内的发烟制品4的气雾形成基体41中。
根据本公开的实施例，在提取器3的内周壁上设置有从提取器的第二端部延伸到第一端部的进气通道。
优选地，进气通道为形成在提取器3的内周壁上的凹槽31。优选地，如图3所示，进气通道为沿提取器3的内周均匀地形成在提取器3的内周壁上的多条凹槽31。
在所示的实施例中，凹槽31为从提取器的第二端部笔直地延伸到第一端部的线性凹槽。
可替换地并且优选地，凹槽31为从提取器的第二端部螺旋地延伸到所述第一端部的螺旋形凹槽(未示出)。在这种情况下，所形成的螺旋气流能够更多地带走发烟制品散发的热量。并且气流携带的灰尘或其他杂物在离心力的带动下更容易积聚在提取器的第二端部附近，这样更便于后续清理。
可替换地，套筒形式的提取器3的内周壁可以具有非圆形轮廓(未示出)，例如卵形轮廓、三角形轮廓、多边形轮廓等等。该非圆形轮廓的内周壁与发烟制品4的圆形轮廓的外周壁之间的空隙形成所述凹槽形式的进气通道。当然，在提取器3的内周壁具有非圆形轮廓的情况下，发烟制品4的外周壁可以具有与之不同的任何轮廓，只要两者之间能够形成空隙，都可以形成这样的进气通道。例如，提取器具有五边形的内周壁，而发烟制品具有六边形的外周壁，等等。为将发烟制品保持在提取器中不晃动，提取器3的部分内周壁可以形成有与发烟制品的外周壁轮廓相匹配的轮廓。
进气通道具有在提取器3的第二端部处的进气口30。进气口30中的每一个都与相应的凹槽流体连通。在图2所示的实施例中，进气口30实际上为相应凹槽30的端部部分。进气口30的大小可由设计者选择并且可被选择成提供通过装置的所期望的吸阻。
在图2的实施例中，贯穿提取器3的第一端部的端壁设置有通孔32。优选地，通孔32的数量和大小对应于凹槽31的数量和大小。每个通孔32可以与相应的凹槽31对准。同样，可根据特定的操作参数改变通孔的数量、位置以及大小。当然，该端壁的内部可以形成有用于引导气流进入气雾形成基体的沟槽(未示出)。
在使用时，使用者将包括有气雾形成基体41的发烟制品4放置于提取器3的接收腔内。加热器21延伸穿过提取器3的第一端部的端壁中的孔眼并插入到发烟制品4 的气雾形成基体41中。使用者启动加热器21，加热器21加热气雾形成基体41以形成气雾。同时，在使用者对发烟制品4的过滤嘴棒的抽吸作用下，来自外部环境的空气从位于提取器3的第二端部(即图2中的上端部)处的进气口30流入提取器与发烟制品之间的凹槽31中。然后，空气沿着凹槽31一直行进至提取器3的第一端部附近，经由提取器3的第一端部的内壁与发烟制品4的气雾形成基体端之间的间隙进入发烟制品的气雾形成基体41中，和/或经由通孔32进入主体2与提取器3的第一端部之间的间隙、接着经由加热器所穿过的孔眼或其他孔眼进入发烟制品的气雾形成基体41中。随后，进入气雾形成基体41的空气流携带着通过加热气雾形成基体41形成的气雾行进通过气雾形成基体41，并最终行进至发烟制品4的过滤嘴棒，由此被使用者抽吸到嘴中供其吸食。
在本公开中，进气口设置于提取器的第二端部，而非像现有技术那样典型地设置于外壳或主体侧面。在此位置，进气口在使用期间被使用者的手无意中堵塞的可能性非常小，确保了抽吸通畅。
在本公开中，凹槽形式的进气通道位于提取器的内周壁与发烟制品的外周表面之间，抽吸时形成的气流从该进气通道带走从发烟制品散发的热量。空气因此在进入气雾形成基体41之前被预热，空气的这种预热不仅提高了烟具的效率，而且确保了气雾形成基体内的更加均匀的温度分布。此外，与前述现有技术披露的气溶胶发生装置相比，由于从发烟制品散发的热量来不及传递给提取器、腔壁和外壳就直接被气流带走，所以进一步有效地降低了使用烟具时外壳表面的温度，这使得使用者能够更舒服地拿持烟具。
特别是，随着时间推移，当灰尘或其他异物积聚在进气通道中造成抽吸不畅甚至堵塞时，由于凹槽形式的进气通道设置于提取器的内周壁上，提取器的接收腔空间较大，使用者可以容易地到达凹槽对其进行简单清理。此外，由于提取器是独立部件，使用者也可以轻易地将提取器拆卸下来，对其内部表面进行充分清理，例如化学浸泡或使用工具等各种手段。
优选地，为了进一步减少加热器21的热量传递给外壳1，防止非燃烧烟具发烫，可以在提取器3的外周壁、腔壁22和/或外壳1的内周壁上设置隔热槽。例如，通过将外壳1的部分内周壁挖去，留下一层薄壁，形成的凹部为隔热槽。由于隔热槽形成了一隔热空间，因此加热器在加热过程中散发的热量到达该隔热槽，在该隔热空间中被空气阻隔，从而减少传递给外壳1的热量。在一些实施例中，隔热槽内可以放置隔 热材料。
关于本公开的一个方面或一个实施例描述的特征也可以应用于本公开的其他方面或其他实施例。
在本公开的实施例中，优选地，发烟制品是加热式发烟制品，其包括的气雾形成基体旨在被加热而不是燃烧，以便释放可形成气雾的易挥发化合物。通过加热气雾形成基体而形成的气雾可以包含比通过气雾形成基体的燃烧或热降解可能产生的少的已知有害组分。发烟制品可以是烟草棒，或者可以包括烟草棒。
在本公开的各实施例中，加热器包括一个或多个加热元件。加热元件可以包括电阻材料。可选择地，加热元件可以是红外加热元件、光子源、或感应加热元件。加热元件可以采取任何适当的形式。例如，加热元件可以采取加热叶片的形式。可选择地，加热元件可以采取具有不同的导电部分的壳体或基体、或者电阻性金属管的形式。可选择地，可以是一根或多根加热针或杆，该一根或多根加热针或杆穿过气雾形成基体的内部延伸。其它可选择例包括加热金属丝或灯丝，例如Ni-Cr(镍-铬)、铂、钨、或合金金属丝或加热板。选择性地，加热元件可以淀积在刚性载体材料中或刚性载体材料上。
在本公开的各实施例中，提取器的第一端部中可以设置有一个或多个孔眼，孔眼的数量可以多于加热器的加热元件的数量，也可以等于加热器的加热元件的数量。孔眼的尺寸应设计成允许加热器自由地穿过。孔眼可以具有任何适当的形状，例如，孔眼可以是矩形的或圆形的。孔眼的形状可以与加热元件(一个或多个)的横截面形状相同。可选择地，第一端部可以包括纱网或丝网，该纱网或丝网将允许空气流过。
气雾形成基体可以是固体气雾形成基体。可选择地，气雾形成基体可以既包括固体成分又包括液体成分。气雾形成基体可以包括含烟草的材料，该含烟草的材料包含易挥发烟草调味化合物，这些易挥发烟草调味化合物在加热时从基体释放。可选择地，气雾形成基体可以包括无烟草材料。气雾形成基体还可以包括气雾形成剂。适当的气雾形成剂的例子是甘油和丙二醇。
本公开可以包括在此隐含或明确公开的任何特征或特征组合或其概括，不局限于上述罗列的任何限定的范围。在此所述的有关任何元件、特征和/或结构布置可以以任何适合的方式组合。
以上公开的特定实施例仅是示例性的，对于受益于本公开中的教导的本领域技术人员来说显然的是，可以以各种方式修改和实施本公开。例如，可以按不同的顺序执 行上述方法步骤。此外，除了以下权利要求中所述的之外，并不限制本公开中示出的构造或设计的细节。因此显然的是，可对以上公开的具体实施例进行改变和修改，并且所有这些变型都被认为是落入本公开的范围和精神之内。因此，本公开中寻求的保护由所附的权利要求及其等同给出。

Claims (10)

  1. 一种非燃烧烟具，包括：
    主体，所述主体形成有加热腔；
    加热器，所述加热器用来加热发烟制品的气雾形成基体；和
    提取器，所述提取器用来接收发烟制品的气雾形成基体，所述提取器安装于主体的加热腔中，所述提取器包括相对的第一端部和第二端部，
    其中，在所述提取器的内周壁上设置有凹槽形式的进气通道，所述进气通道从所述提取器的第二端部延伸到所述提取器的第一端部，在使用时，所述凹槽形式的进气通道位于所述提取器的内周壁与发烟制品的外周表面之间。
  2. 根据权利要求1所述的非燃烧烟具，其中，所述提取器的内周壁具有非圆形轮廓，该非圆形轮廓的内周壁与发烟制品的外周壁之间的空隙形成所述凹槽形式的进气通道。
  3. 根据权利要求1所述的非燃烧烟具，其中，所述进气通道包括沿所述提取器的内周均匀地形成在所述提取器的内周壁上的多条凹槽。
  4. 根据权利要求3所述的非燃烧烟具，其中，所述凹槽为从所述第二端部笔直地延伸到所述第一端部的线性凹槽。
  5. 根据权利要求3所述的非燃烧烟具，其中，所述凹槽为从所述第二端部螺旋地延伸到所述第一端部的螺旋形凹槽。
  6. 根据权利要求3所述的非燃烧烟具，其中，所述进气通道包括在所述提取器的第二端部处设置的进气口，所述进气口与相应的凹槽流体连通。
  7. 根据权利要求3所述的非燃烧烟具，其中，贯穿提取器的第一端部的端壁设置有通孔。
  8. 根据权利要求7所述的非燃烧烟具，其中，存在多个通孔，每个通孔与相应的凹槽对准。
  9. 根据权利要求2所述的非燃烧烟具，其中，第一端部包括纱网或丝网，该纱网或丝网将允许空气流过。
  10. 根据权利要求1或2所述的非燃烧烟具，其中，在所述提取器的外周壁和/或所述加热腔的腔壁上设置有隔热槽。
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