WO2022063329A1 - 双加热低温烟草加热装置 - Google Patents

双加热低温烟草加热装置 Download PDF

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Publication number
WO2022063329A1
WO2022063329A1 PCT/CN2021/121648 CN2021121648W WO2022063329A1 WO 2022063329 A1 WO2022063329 A1 WO 2022063329A1 CN 2021121648 W CN2021121648 W CN 2021121648W WO 2022063329 A1 WO2022063329 A1 WO 2022063329A1
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Prior art keywords
heating
heat
heating device
dual
tobacco
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PCT/CN2021/121648
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English (en)
French (fr)
Inventor
李建伟
刘道胜
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深圳市新宜康科技股份有限公司
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Publication of WO2022063329A1 publication Critical patent/WO2022063329A1/zh

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Classifications

    • 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
    • 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

  • the present application relates to a dual heating low temperature tobacco heating device.
  • a heat-not-burn device for heating tobacco which includes a casing, and a heater, a controller, and a battery are installed in the casing.
  • the heater provides electrical energy for the operation of the heater.
  • the heater includes a main body, and a heating sheet is arranged on the main body.
  • the heating sheet is generally made of a ceramic material.
  • the heating sheet is in the shape of a thin sheet.
  • the two ends of the silk screen resistor are respectively connected to the battery.
  • a heating method which is also a peripheral heating method, which includes a heating chamber, the outer wall of the heating chamber is provided with a heating wire, or the heating wire is wound on the inner wall of the heating chamber, and the heating wire is energized to generate heat.
  • the outer wall of the cavity the heat generated by the heating wire is transferred to the heating cavity to heat the tobacco in the heating cavity. If the heating wire is located on the inner wall of the heating cavity, a part of the heat generated by the heating wire is transferred to the tobacco to evaporate the aroma in the cigarette. Come out and feed people.
  • the power supply supplies power to the heating sheet, and the heating sheet heats the cigarette. Since the outside air is at room temperature, when the normal temperature air enters the cigarette, it enters through the shredded tobacco.
  • the temperature of a person's oral cavity is often cool, and the temperature of the first few puffs of tobacco is generally cool; in another case, the cigarette is heated for 5 minutes before smoking, for example, heating the tobacco to a critical temperature , and keep warm, the critical temperature is the temperature at which the aroma in the tobacco will volatilize, and then smoke, but in this case, because the outside air is at room temperature, when the air at room temperature enters the cigarette, although it can bring Take a lot of heat, but the gas inhaled into the mouth is continuous, the flow of gas is large, and the first few puffs are generally cold, although some will have a certain temperature, such as 50 degrees , but this gas also has the phenomenon of poor taste and low temperature when it enters the human mouth.
  • the purpose of the present application is to overcome the defects of the prior art, and to provide a dual-heating low-temperature tobacco heating device, which has the characteristics of non-contact, fast heating, high cleanliness, safety and health.
  • a dual-heating low-temperature tobacco heating device comprising:
  • the first heating device includes a first body, a first heating sheet is installed in the first body, the first heating sheet has a first central channel, and the first central channel is used as the axis, and the first heating sheet is bent from the inside to the outside
  • the folding and extending are arranged in a spiral shape, a first preheating channel is arranged between two adjacent layers of the first heating sheets, the first heating sheet located on the outermost side has a first air inlet, and the upper part of the first main body is provided with a first air passage;
  • the second heating device includes a heating chamber for heating tobacco, the heating chamber is configured with a second heating part to heat the heating chamber, the heating chamber has a second airflow inlet, and the first airflow channel communicated with the second airflow inlet.
  • the second heating device includes a second body, a second heat insulation layer, a second heating component, and a second heat conduction layer, the second heating component is arranged on the second heat conduction layer, and the second heat insulation layer is located on the second heat conduction layer. Outside the heating component, the second body is located outside the second heat insulation layer.
  • the upper part of the second heat-conducting layer is opened, the second air inlet is opened at the bottom of the second heat-conducting layer, and the bottom wall of the second heat-conducting layer and the side wall of the second heat-conducting layer enclose the heating cavity.
  • the second heating component is disposed on the outer wall or the inner wall of the heating cavity, or the second heating component is embedded inside the second heat conducting layer.
  • the bottom of the second heat-conducting layer is also provided with a heating needle, the lower surface of the heating needle is provided with a guiding groove upward, and an air guiding groove is formed between the side wall of the heating needle and the guiding groove, and the guiding groove is connected to the first air flow channel.
  • the heating needle is in the shape of a sharp cone, and the heating needle is installed at the second airflow inlet.
  • the first main body includes a first top plate, a first bottom plate and a first side plate, the first heating sheet is located in the accommodation space enclosed by the first top plate, the first bottom plate and the first side plate, and the first side plate is provided with an air inlet , the air inlet corresponds to the first air inlet, the first airflow channel is opened on the first top plate, and the first bottom plate seals the lower part of the first main body.
  • the second heating device is located above the first heating device.
  • the first heating device of the present application includes a first main body, and a first heating sheet is installed in the first main body.
  • the outer bending and extending are arranged in a spiral shape.
  • the first heating sheet located at the outermost side has a first air inlet.
  • the air is preheated through the first heating sheet arranged in a spiral shape, and then the preheated air passes through the second heating device, and the tobacco in the heating chamber is in the state of being volatilized by the second heating device, and a preheating device is added at this time.
  • the two heats will bake the tobacco together, so that the aroma in the tobacco is heated and evaporated. From the first puff, the aroma/smoke temperature entering the human mouth is balanced, and the temperature is still quite Hot, to avoid the phenomenon of cold taste in the first few bites.
  • FIG. 1 is a schematic diagram of the overall first embodiment provided by this application.
  • Fig. 2 is the schematic diagram of the first heating sheet provided by the application
  • FIG. 3 is a schematic diagram of the whole of the second embodiment provided by the present application.
  • FIG. 4 is a schematic diagram of a first heating sheet provided by the application.
  • FIG. 5 is a schematic diagram of a heating needle provided by the application.
  • FIG. 6 is a cross-sectional view of the heating needle provided by the present application.
  • the embodiment of the present application provides a dual-heating low-temperature tobacco heating device.
  • the first heating device 1 includes a first main body.
  • a first heating sheet 11 is installed in the first main body.
  • the first heating sheet 11 Kaikai is a carbon film heating plate, it can also be a metal heating plate, it can also be a ceramic, which is provided with a heating wire inside, or a heating electric trace, a silk screen resistor, etc. can be arranged on the surface of the ceramic.
  • the first heating plate 11 has a first The central channel 12 takes the first central channel 12 as the axis, the first heating sheets 11 are bent and extended from the inside to the outside in a spiral shape, and there is a first preheating channel 13 between two adjacent layers of the first heating sheets 11 ,
  • the first heating sheet 11 located at the outermost side has a first air inlet 18, and the upper part of the first main body is provided with a first air flow channel 17;
  • the second heating device 2 includes a heating chamber 26, and the heating chamber 26 is used for heating tobacco, so
  • the heating chamber 26 is configured with a second heating component to heat the heating chamber 26, the heating chamber 26 has a second air inlet 24, the first air passage 17 communicates with the second air inlet 24, and the second heating device 2 Located above the first heating device 1 .
  • the first heating device 1 and the first heating device 1 may be provided integrally or separately.
  • the second heating device 2 includes a second main body 21 , a second heat insulation layer 22 , a second heating component, and a second thermal conductive layer 23 , the second heating component is disposed on the second thermal conductive layer 23 , and the second insulation layer 23
  • the heat layer 22 is located outside the second heating member, and the second body 21 is located outside the second heat insulating layer 22 .
  • the upper portion of the second thermally conductive layer 23 is open, the second air inlet 24 is opened at the bottom of the second thermally conductive layer 23 , and the bottom wall of the second thermally conductive layer 23 and the sidewall of the second thermally conductive layer 23 enclose the heating cavity 26 .
  • the second heating component is disposed on the outer wall or the inner wall of the heating cavity 26 , or the second heating component is embedded in the second heat conducting layer 23 , and the second heating component heats the cigarettes 3 by means of external heating.
  • the bottom of the second thermally conductive layer 23 is also provided with a heating needle 25 , a guide groove 251 is formed on the lower surface of the heating needle 25 upward, and an air guide groove 252 is formed between the side wall of the heating needle 25 and the guide groove 251 , and the guide groove 251 communicate with the first airflow channel 17 .
  • the heating needle 25 is in the shape of a sharp cone, and the heating needle 25 is installed at the second air inlet 24. This is a method of internal heating, which is heated from the center of the cigarette 3, and the air drying after central diffusion preheating is adopted. The aroma in the flue-cured tobacco stick 3.
  • the first main body includes a first top plate 14 , a first bottom plate 16 and a first side plate 15 .
  • the first heating plate 11 is located in the accommodation space enclosed by the first top plate 14 , the first bottom plate 16 and the first side plate 15 .
  • An air inlet 151 is formed on the side plate 15, the air inlet 151 corresponds to the first air inlet 18, the first air passage 17 is formed on the first top plate 14, and the first bottom plate 16 seals the lower part of the first main body.
  • the bottom of the first main body is sealed, and there is a first air passage 17 on the upper part.
  • the lower part of the second heating device 2 is also equipped with a power supply component and a control component.
  • the power supply component is connected to the control component, and the control component is connected to the first heating device 1 and the second heating device 2 respectively through lead wires.
  • the first heating device 1 and the second heating device 2 start to work, the outside air enters through the air inlet 151 , enters the first heating sheet 11 through the first air inlet 18 , and then follows the spiral first heating sheet 11 Doing a circular motion, through the first preheating channel 13 between the two adjacent layers of the first heating sheets 11, the path of the air becomes longer, the flue gas is heated evenly, and the heated air reaches the first central channel 12, continue It moves upward and flows out through the first airflow channel 17 to achieve the effect of preheating the outside air.
  • the preheated air enters the cigarette 3 through the second airflow inlet 24, and will be in a critical state (to be The volatile) cigarette 3 is heated and atomized to evaporate the aroma in it, because the first heating device 1 has already heated the cigarette 3 to the state to be evaporated, and there is still a lack of the last bit of heat, which comes from Preheated air of the second heating device 2 .
  • the preheated air opens a guide groove 251 upward through the lower surface of the heating needle 25, enters the air guide groove 252, diffuses outward through the center of the cigarette 3, and evaporates the aroma in the cigarette 3, so that It can keep the first puff and the first few puffs of flue gas with a certain amount of heat, and keep the flue gas temperature stable, so that the flue gas temperature in the first few puffs is not insufficient, resulting in a cold taste.

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  • Manufacture Of Tobacco Products (AREA)

Abstract

一种双加热低温烟草加热装置包括：第一加热装置（1），其包括第一主体，第一主体内装设第一加热片（11），第一加热片（11）具有第一中心通道（12），第一加热片（11）从内向外弯折延伸呈螺旋状设置，相邻的两层第一加热片（11）之间具有第一预热通道（13），位于最外侧的第一加热片（11）具有第一空气入口（18），第一主体的上部开设第一气流通道（17）；第二加热装置（2），其包括加热腔（26），加热腔（26）具有第二气流入口（24），第一气流通道（17）和第二气流入口（24）连通。通过第一加热片（11）对空气进行预热，位于加热腔（26）内的待挥发状态烟草，两个热量一起将烟草烘烤，使烟草内的香气受热蒸发，从抽吸第一口开始，进入人的口腔的香气/烟气的温度都是均衡的，避免前几口凉的现象。

Description

双加热低温烟草加热装置
本申请要求于2020年09月22日在中国专利局提交的、申请号为202022095354.2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
本申请涉及一种双加热低温烟草加热装置。
 背景技术
目前使用一种用于加热烟草的加热不燃烧装置，其包括壳体，壳体内装设有加热器、控制器、电池，所述控制器连接所述加热器，所述电池为控制器、加热器的工作提供电能，所述加热器包括主体，所述主体上设置有加热片，所述加热片一般由陶瓷材料制成，所述加热片呈薄片状，所述加热片上设置有丝印电阻，丝印电阻的两端分别连接电池。使用时，将加热片插入烟支中，开启电源开关，加热片将烟支加热，以将烟支中的香气蒸发出来，供人吸食。
另外，还有一种加热方式，也成外围式加热方式，其包括加热腔，加热腔的外壁设置有发热丝，或者在加热腔的内壁缠绕发热丝，发热丝通电产生热量，如果发热丝位于加热腔的外壁，发热丝产生的热量传递给加热腔内，将加热腔内的烟草加热，如果发热丝位于加热腔的内壁，发热丝产生的热量一部分传给烟草，以将烟支中的香气蒸发出来，供人吸食。
上述两种加热不燃烧装置，在使用的时候，打开电源，电源对加热片供电，加热片加热烟支，由于外界的空气是常温的，当常温的空气进入烟支的时候，通过烟丝进入到人的口腔的温度往往都是凉的，前几口抽吸烟草的温度一般都是凉的；另外还有一种情况，在抽吸之前，对烟支加热5分钟，例如将烟草加热到临界温度，并进行保温，临界温度就是烟草中的香气将要挥发出的温度，然后再进行抽吸，但是这种情况下由于外界的空气是常温的，当常温的空气进入烟支的时候，虽然可以带走大量的热量，但是吸入口腔的气体是持续的，气体的流量是较大的，也同样存在前几口抽吸的时候一般也是凉的，虽然有的也会具有一定的温度，例如50度，但是这种气体在进入人的口腔的时候也同样存在口感差，温度低的现象。
 技术问题
本申请的目的在于克服现有技术之缺陷，提供了一种双加热低温烟草加热装置，其具有无接触、发热快、清洁度高、安全健康的特性。
 技术解决方案
本申请是这样实现的：一种双加热低温烟草加热装置，其包括：
第一加热装置，其包括第一主体，所述第一主体内装设第一加热片，第一加热片具有第一中心通道，以第一中心通道为轴心，第一加热片从内向外弯折延伸呈螺旋状设置，相邻的两层第一加热片之间具有第一预热通道，位于最外侧的第一加热片具有第一空气入口，第一主体的上部开设第一气流通道；
第二加热装置，其包括加热腔，加热腔用以加热烟草，所述加热腔配置有第二加热部件，以将加热腔加热，所述加热腔具有第二气流入口，所述第一气流通道和第二气流入口连通。
所述第二加热装置包括第二主体，第二隔热层、第二加热部件、第二导热层，所述第二加热部件设置于第二导热层，所述第二隔热层位于第二加热部件外侧，第二主体位于第二隔热层外侧。第二导热层上部开口，第二气流入口开设于第二导热层的底部，第二导热层的底壁和第二导热层的侧壁围成所述加热腔。
第二加热部件设置于所述加热腔的外壁或者内壁，或者第二加热部件埋设于所述第二导热层内部。
第二导热层的底部还配置加热针，所述加热针的下表面向上开设引导槽，加热针的侧壁和引导槽之间开设导气槽，所述引导槽连通所述第一气流通道。
加热针呈尖锥状，加热针装设于所述第二气流入口。
所述第一主体包括第一顶板、第一底板、第一侧板，第一加热片位于第一顶板、第一底板、第一侧板围成的收容空间，第一侧板开设进气口，所述进气口对应所述第一空气入口，第一气流通道开设于第一顶板，第一底板将第一主体的下部密封。
第二加热装置位于第一加热装置的上方。
 有益效果
本申请第一加热装置，其包括第一主体，所述第一主体内装设第一加热片，第一加热片具有第一中心通道，以第一中心通道为轴心，第一加热片从内向外弯折延伸呈螺旋状设置，相邻的两层第一加热片之间具有第一预热通道，位于最外侧的第一加热片具有第一空气入口，第一主体的上部开设第一气流通道；第二加热装置，其包括加热腔，加热腔用以加热烟草，所述加热腔配置有第二加热部件，以将加热腔加热，所述加热腔具有第二气流入口，所述第一气流通道和第二气流入口连通。通过螺旋状设置的第一加热片对空气进行预热，然后预热后的空气通过第二加热装置，位于加热腔内的烟草被第二加热装置正处于待挥发状态，此时又增加了预热后的空气，两个热量一起将烟草烘烤，使烟草内的香气受热蒸发，从抽吸第一口开始，进入人的口腔的香气/烟气的温度都是均衡的，而且温度还是相当热的，避免前几口口感凉的现象。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请提供的第一实施例整体的示意图；
图2为本申请提供的第一加热片的示意图；
图3为本申请提供的第二实施例整体的示意图；
图4为本申请提供的第一加热片的示意图；
图5为本申请提供的加热针的示意图；
图6为本申请提供的加热针的剖面图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1-图6，本申请实施例提供一种双加热低温烟草加热装置，第一加热装置1，其包括第一主体，所述第一主体内装设第一加热片11，第一加热片11开业是碳膜发热片、也可以是金属发热片，也可以是陶瓷，其内部设置有发热丝，还可是在陶瓷的表面配置发热电轨迹，丝印电阻等，第一加热片11具有第一中心通道12，以第一中心通道12为轴心，第一加热片11从内向外弯折延伸呈螺旋状设置，相邻的两层第一加热片11之间具有第一预热通道13，位于最外侧的第一加热片11具有第一空气入口18，第一主体的上部开设第一气流通道17；第二加热装置2，其包括一加热腔26，加热腔26用以加热烟草，所述加热腔26配置有第二加热部件，以将加热腔26加热，所述加热腔26具有第二气流入口24，所述第一气流通道17和第二气流入口24连通，第二加热装置2位于第一加热装置1的上方。第一加热装置1和第一加热装置1可以一体设置，也可以分体设置。
所述第二加热装置2包括第二主体21，第二隔热层22、第二加热部件、第二导热层23，所述第二加热部件设置于第二导热层23，所述第二隔热层22位于第二加热部件外侧，第二主体21位于第二隔热层22外侧。第二导热层23上部开口，第二气流入口24开设于第二导热层23的底部，第二导热层23的底壁和第二导热层23的侧壁围成所述加热腔26。
第二加热部件设置于所述加热腔26的外壁或者内壁，或者第二加热部件埋设于所述第二导热层23内部，第二加热部件采用外加热的方式对烟支3进行加热。
第二导热层23的底部还配置加热针25，所述加热针25的下表面向上开设引导槽251，加热针25的侧壁和引导槽251之间开设导气槽252，所述引导槽251连通所述第一气流通道17。加热针25呈尖锥状，加热针25装设于所述第二气流入口24，这是一种内加热的方式，从烟支3的中心位置处加热，采用中心扩散预热后的空气烘烤烟支3内的香气。
所述第一主体包括第一顶板14、第一底板16、第一侧板15，第一加热片11位于第一顶板14、第一底板16、第一侧板15围成的收容空间，第一侧板15开设进气口151，所述进气口151对应所述第一空气入口18，第一气流通道17开设于第一顶板14，第一底板16将第一主体的下部密封。第一主体的底部密封，上部有一个第一气流通道17，第一侧板15的进气口151可以让外界空气进来，然后进入第一空气入口18。
第二加热装置2的下方还配置有电源组件、控制组件，电源组件连接控制组件，控制组件通过引线分别连接第一加热装置1、第二加热装置2，将烟支3插入加热腔26，上电后，第一加热装置1、第二加热装置2开始工作，外界空气通过进气口151进入，通过第一空气入口18进入第一加热片11，然后沿着螺旋状的第一加热片11做圆周运动，通过相邻的两层第一加热片11之间的第一预热通道13，空气的路径变成长，烟气被均匀加热，加热后的空气到达第一中心通道12，继续向上运动，通过第一气流通道17流出，达到将外界空气预热的效果，第一种设计中，预热后的空气通过第二气流入口24进入烟支3中，将处于临界状态的（欲挥发的）烟支3加热雾化，使其中的香气蒸发出来，因为第一加热装置1此时已经将烟支3加热到欲蒸发的状态，还缺少最后一点热量，这最后一点热量就来自于第二加热装置2的预热空气。还有一种设计是预热后的空气通过加热针25的下表面向上开设引导槽251，进入导气槽252，通过烟支3的中心向外扩散，将烟支3中的香气蒸发出来，这样可以保持第一口、以及前几口烟气具有一定的热量，保持烟气温度的平稳，不至于前几后烟气温度不够，导致口感凉的现象。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (7)

  1. 一种双加热低温烟草加热装置，其特征在于，包括：
    第一加热装置，其包括第一主体，所述第一主体内装设第一加热片，第一加热片具有第一中心通道，以第一中心通道为轴心，第一加热片从内向外弯折延伸呈螺旋状设置，相邻的两层第一加热片之间具有第一预热通道，位于最外侧的第一加热片具有第一空气入口，第一主体的上部开设第一气流通道；
    第二加热装置，其包括加热腔，加热腔用以加热烟草，所述加热腔配置有第二加热部件，以将加热腔加热，所述加热腔具有第二气流入口，所述第一气流通道和第二气流入口连通。
  2. 如权利要求1所述的一种双加热低温烟草加热装置，其特征在于：所述第二加热装置包括第二主体，第二隔热层、第二加热部件、第二导热层，所述第二加热部件设置于第二导热层，所述第二隔热层位于第二加热部件外侧，第二主体位于第二隔热层外侧。第二导热层上部开口，第二气流入口开设于第二导热层的底部，第二导热层的底壁和第二导热层的侧壁围成所述加热腔。
  3. 如权利要求2所述的一种双加热低温烟草加热装置，其特征在于：第二加热部件设置于所述加热腔的外壁或者内壁，或者第二加热部件埋设于所述第二导热层内部。
  4. 如权利要求2所述的一种双加热低温烟草加热装置，其特征在于：第二导热层的底部还配置加热针，所述加热针的下表面向上开设引导槽，加热针的侧壁和引导槽之间开设导气槽，所述引导槽连通所述第一气流通道。
  5. 如权利要求4所述的一种双加热低温烟草加热装置，其特征在于：加热针呈尖锥状，加热针装设于所述第二气流入口。
  6. 如权利要求1所述的一种双加热低温烟草加热装置，其特征在于：所述第一主体包括第一顶板、第一底板、第一侧板，第一加热片位于第一顶板、第一底板、第一侧板围成的收容空间，第一侧板开设进气口，所述进气口对应所述第一空气入口，第一气流通道开设于第一顶板，第一底板将第一主体的下部密封。
  7. 如权利要求1所述的一种双加热低温烟草加热装置，其特征在于：第二加热装置位于第一加热装置的上方。
PCT/CN2021/121648 2020-09-22 2021-09-29 双加热低温烟草加热装置 WO2022063329A1 (zh)

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