WO2022188715A1 - 气溶胶产生装置及其加热器件 - Google Patents

气溶胶产生装置及其加热器件 Download PDF

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Publication number
WO2022188715A1
WO2022188715A1 PCT/CN2022/079364 CN2022079364W WO2022188715A1 WO 2022188715 A1 WO2022188715 A1 WO 2022188715A1 CN 2022079364 W CN2022079364 W CN 2022079364W WO 2022188715 A1 WO2022188715 A1 WO 2022188715A1
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WO
WIPO (PCT)
Prior art keywords
heating
heating device
thermally conductive
base material
columnar
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PCT/CN2022/079364
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English (en)
French (fr)
Inventor
邓金兴
张蛟
牛永斌
周宏明
Original Assignee
深圳麦克韦尔科技有限公司
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Publication of WO2022188715A1 publication Critical patent/WO2022188715A1/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
    • A24F40/40—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
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the invention relates to a baking device, in particular to an aerosol generating device and a heating device thereof.
  • the low-temperature cured tobacco heating elements in the related art are mostly sheet-type heating elements.
  • the contact surface between the sheet-type heating element and the tobacco is large, which is conducive to heat transfer and has a good taste.
  • the metal substrate will also be deformed; in addition, it is only suitable for sheet tobacco, not silk tobacco; the preparation process is complex, requiring multiple processes such as printing, drying and sintering, and there is a problem of thermal mismatch between different film layers.
  • the present invention provides an improved aerosol generating device and a heating device thereof.
  • the present invention provides a heating device for heating aerosol-generating substrates, the heating device comprises a longitudinally long heating rod and a heat-conducting sleeve tightly sleeved on the heating rod, the heating The rod includes a columnar base material and a heating element coupled to the columnar base material.
  • the heating element includes a heating wire.
  • a groove for embedding the heating wire is formed on the surface of the columnar substrate.
  • the grooves are distributed on the surface of the columnar substrate in a spiral shape.
  • the heating rod includes a temperature control element coupled to the columnar substrate.
  • the temperature control element includes a temperature control wire.
  • grooves for embedding the temperature control wires are formed on the surface of the columnar substrate.
  • the grooves are distributed on the surface of the columnar substrate in a spiral shape.
  • the columnar substrate includes a first segment close to the insertion end of the heating rod and a second segment away from the insertion end of the heating rod, and the thermal conductivity of the first segment is greater than that of the second segment segment thermal conductivity.
  • the first segment and the second segment are bonded end-to-end, and the bonding portion is located within the thermally conductive sleeve.
  • the insertion end of the cylindrical substrate includes a pointed structure, and the diameter at the largest diameter of the pointed structure is equal to or slightly smaller than the outer diameter of the thermally conductive sleeve.
  • the columnar base material has a central hole through which at least one electrode lead of the heating element is drawn out.
  • the heating element includes a heating film formed on the columnar substrate.
  • the heating element includes a columnar heating metal mesh sleeved on the surface of the columnar substrate.
  • the insertion end of the thermally conductive sleeve has a pointed configuration.
  • a high-temperature adhesive is provided between the outer wall surface of the heating rod and the inner wall surface of the heat-conducting sleeve, and the high-temperature adhesive fills the space between the heating rod and the heat-conducting sleeve Clearance.
  • the heating device includes at least one thermally conductive sheet radially coupled to the outer wall of the thermally conductive sleeve.
  • the insertion end of the at least one thermally conductive sheet is sharpened.
  • another heating element is disposed on the at least one thermally conductive sheet.
  • an aerosol generating device comprising the heating device of any of the above.
  • the beneficial effects of the present invention are: by the cooperation of the heating rod and the heat-conducting sleeve, the manufacturing difficulty of the heating device is reduced, the rigidity of the heating device is improved, and a variety of aerosol generating substrates can be applied.
  • FIG. 1 is a schematic three-dimensional structure diagram of an aerosol generating device in a use state according to some embodiments of the present invention.
  • FIG. 2 is a schematic three-dimensional structure diagram of the aerosol generating device shown in FIG. 1 in a state of being separated from the aerosol generating substrate.
  • FIG. 3 is a schematic diagram of a longitudinal cross-sectional structure of the aerosol generating device shown in FIG. 1 .
  • FIG. 4 is a schematic three-dimensional structural diagram of a heating device of the aerosol generating device shown in FIG. 3 .
  • FIG. 5 is a schematic diagram of a three-dimensional exploded structure of the heating device shown in FIG. 4 .
  • FIG. 6 is a partial enlarged structural schematic diagram of the circle of the heating device shown in FIG. 5 .
  • FIG. 7 is a schematic three-dimensional structure diagram of a heating device in other embodiments of the present invention.
  • FIG. 8 is a schematic diagram of a three-dimensional exploded structure of the heating device shown in FIG. 7 .
  • the aerosol generating device 1 is used for heating and baking the aerosol generating substrate 2 detachably inserted therein, so as to The aerosol extract in the aerosol-generating matrix 2 is released in a non-combustible state.
  • the aerosol-generating substrate 2 may be a cigarette arranged in a cylindrical shape.
  • the top of the aerosol generating device 1 is provided with an insertion hole 10 whose size is adapted to the size of the aerosol generating substrate 2 .
  • a socket cover 15 can be provided next to the socket 10 to cover the socket 10 when not in use, so as to prevent foreign objects from entering the socket 10 and hinder the use of the aerosol generating device 1 .
  • the aerosol generating device 1 may include a casing 11 and a heating device 12 , a power source 13 and a main board 14 disposed in the casing 11 .
  • the heating device 12 extends into the insertion hole 10 from the bottom of the insertion hole 10, so that when the aerosol generation substrate 2 is inserted into the insertion hole 10, the heating element 12 can be longitudinally inserted into the aerosol generation substrate 2 from the bottom end of the aerosol generation matrix 2. In the substrate 2, and in close contact with the aerosol-generating substrate 2. In this way, when the heating device 12 is energized to generate heat, the heat can be transferred to the aerosol-generating substrate 2, and the aerosol-generating substrate 2 is heated to emit aerosol.
  • the power supply 13 is electrically connected to the heating device 12, and the on-off of the two is controlled by a switch.
  • the main board 14 is used for arranging the relevant main control circuits.
  • the heating device 12 may include a base 121 for being fixed in the housing 11 , a longitudinal heating rod 122 passing through the base 121 , and a heating rod sleeved on the heating rod.
  • the base 121 may be in the shape of a circular ring, and may be made of PEEK (polyetheretherketone) or ceramics or other materials.
  • the middle of the base 121 is provided with a central hole 1210 for the heating rod 122 to be inserted and fixed, and a groove 1212 may be provided on the inner side of the central hole 1210 to facilitate the installation of the electrode lead 124 .
  • the heating rod 122 may be cylindrical in some embodiments, and includes a cylindrical base material 1221 and a heating wire 1222 and a temperature control wire 1223 coupled to the cylindrical base material 1221 , the heating wire 1222 and the temperature control wire 1223 They are all electrically connected to the power source 13 via the electrode leads 124 .
  • the columnar substrate 1221 may be a hollow tubular or solid rod-like structure with a pointed structure 1224 made of ceramic, metal, or the like.
  • a spiral groove 1220 may be formed on the outer circumference of the columnar substrate 1221 , which may be used for winding the heating wire 1222 and the temperature control wire 1223 .
  • the heating wire 1222 can be made of materials with appropriate resistance, such as nickel-chromium, iron-chromium-aluminum electric heating alloy wire, stainless steel wire, tungsten wire, etc., and the temperature control wire 1223 can be made of materials with high TCR (temperature coefficient of resistance) and high resistivity or thermoelectric I.
  • the columnar substrate 1221 can be made of a combination of materials with different thermal conductivity of the upper and lower sections. For example, the heating area of the upper section A near the upper tip structure 1224 (that is, the insertion end of the heating rod 122 ) can choose the thermal conductivity.
  • the lower section B away from the pointed structure 1224.
  • materials with low thermal conductivity such as silicon dioxide, glass ceramics, zirconia, and porous ceramics, may be selected for the lower section B away from the pointed structure 1224.
  • the purpose is to reduce the temperature in the non-heating area.
  • the upper section A and the lower section B are bonded end-to-end with an inorganic adhesive, and the bonding part is located in the heat-conducting sleeve 123.
  • the strength of the heating rod 122 can be supported by the heat-conducting sleeve 123.
  • the two-stage design of the base material 1221 does not affect the strength.
  • the prong structure 1224 can be in the shape of a cone, and the diameter at the maximum diameter of the lower side can be equal to or slightly smaller than the outer diameter of the thermally conductive sleeve 123 , so as to facilitate installation and fixation and facilitate the insertion of the aerosol generating substrate 2 .
  • the central hole thereof can also serve as a wire lead-out hole for the other electrode end of the heating wire 1222 and/or the temperature control wire 1223 .
  • the heating function of the heating rod 122 in addition to the method of winding the heating wire 1222, can be realized by the method of coating the heating film on the surface, or the heating function of the heating rod 122 can be realized by nesting the columnar heating metal mesh and the columnar base material 1221 together. Heat function.
  • the thermally conductive sleeve 123 may be made of a high thermal conductivity material, so as to rapidly conduct the heat emitted by the heating rod 122 .
  • the thermally conductive sleeve 123 may be made of materials such as metal and ceramics with high thermal conductivity, for example, made of materials such as nickel-chromium alloy, brass, silicon carbide, or aluminum nitride.
  • the heating device 12 is also made of a thermally conductive sleeve with a pointed structure and a rod-shaped heating rod 122 embedded in the thermally conductive sleeve.
  • the heating device 12 may further include an adhesive 125 disposed between the outer wall surface of the heating rod 122 and the inner wall surface of the thermally conductive sleeve 123 in some embodiments, and the adhesive 125 fills the space between the heating rod 122 and the thermally conductive sleeve 123 so that the heat can be better transferred from the heating rod 122 to the heat conducting sleeve 123 .
  • the adhesive 125 may be a high temperature adhesive such as glass in some embodiments.
  • the adhesive 125 can simultaneously complete the bonding and fixing of the heating wire 1222 , the temperature control wire 1223 and the electrode lead 124 , and the adhesive 125 can also be used for bonding the base 121 and the heating rod 122 .
  • the adhesive 125 may be a slurry prepared from glass ceramics, glass-ceramic, sealing glass, etc., which is solidified after being viscous and flowing through a high-temperature molten liquid phase.
  • the heating device 12a can be used as a replacement for the above-mentioned heating device 12, and it can include a base 121a for fixing in the housing 11, The longitudinal heating rod 122a penetrated in the base 121a, the heat-conducting sleeve 123a sleeved on the heating rod 122a, the electrode lead 124 connected to the heating rod 122a, and several radially connected to the outer wall of the heat-conducting sleeve 123a. Thermally conductive sheet 126a.
  • the base 121a may be in the shape of a circular ring, which may be made of materials such as PEEK (polyetheretherketone) or ceramics.
  • the middle of the base 121a is provided with a central hole 1210a for the heating rod 122a to be inserted and fixed, and a groove 1212a may be provided on the inner side of the central hole 1210 to facilitate the installation of the electrode lead 124a.
  • the heating rod 122a may be cylindrical in some embodiments, and includes a cylindrical substrate 1221a, a heating wire 1222a and a temperature control wire 1223a coupled to the cylindrical substrate 1221a.
  • the columnar substrate 1221a can be a hollow tubular or rod-like structure with a pointed structure 1224a made of ceramic, metal or other materials in some embodiments.
  • the heating wire 1222a and the temperature control wire 1223a are wound.
  • the heating wire 1222a can be made of materials with appropriate resistance value, such as nickel-chromium, iron-chromium-aluminum heating alloy wire, stainless steel wire, tungsten wire, etc.
  • the temperature control wire 1223a can be made of materials with high TCR (temperature coefficient of resistance) and high resistivity or thermoelectric I.
  • the columnar substrate 1221a can be made of a combination of materials with different thermal conductivity between the upper and lower sections.
  • the heating area of the upper section A near the upper tip structure 1224a can be selected from alumina and aluminum nitride with higher thermal conductivity.
  • silicon carbide and other materials the lower section B can choose materials with low thermal conductivity, such as silicon dioxide, glass ceramics, zirconia and porous ceramics. The purpose is to reduce the temperature in the non-heating area.
  • the upper section A and the lower section B are bonded by inorganic adhesives.
  • the strength of the heating rod 122a can be supported by the thermally conductive sleeve 123a, so the two-section design of the columnar base material 1221a will not affect the strength.
  • the prong structure 1224a can be in the shape of a cone, and the diameter at the maximum diameter of the lower side can be equal to or slightly smaller than the outer diameter of the thermally conductive sleeve 123a, so as to facilitate installation and fixation and facilitate the insertion of the aerosol generating substrate 2 .
  • the central hole thereof can also serve as a wire lead-out hole of the other electrode end of the heating wire 1222a and/or the temperature control wire 1223a.
  • the heating function of the heating rod 122a can also be realized by a method of coating a heating film on the surface, or a cylindrical heating metal mesh can be used to nest the cylindrical base material 1221a. Realize the heating function.
  • the thermally conductive sleeve 123a may be made of a material with high thermal conductivity, so as to rapidly conduct the heat emitted by the heating rod 122a, so that the heat can be more uniformly distributed in the aerosol-generating substrate 2 .
  • the thermally conductive sleeve 123a may be made of materials such as metal and ceramics with high thermal conductivity, for example, made of materials such as nickel-chromium alloy, brass, silicon carbide, or aluminum nitride.
  • the thermally conductive sheets 126a may be three sheets, which are evenly distributed in the circumferential direction of the thermally conductive sleeve 123a.
  • the insertion end 1261a of the thermally conductive sheet 126a can be sharpened (eg, chamfered) to facilitate insertion of the aerosol-generating substrate 2, and the end 1262a of the thermally-conductive sheet 126a can be extended only to the aerosol-generating substrate baking section to facilitate energy saving.
  • the thermally conductive sheet 126a can also be extended to the position of the base 121a in the form of a reduced blade.
  • the thermally conductive sheet 126a is integrally formed with the thermally conductive sleeve 123a.
  • the thermally conductive sheet 126a is installed in a slot (not shown) formed in the thermally conductive sleeve 123a.
  • the thermally conductive sheet 126a can also be provided with heating elements, such as a printed heating circuit, so that the thermally conductive sheet 126a can also generate heat, thereby improving the heating efficiency of the heating device 12a and more uniform heat distribution. It can be understood that the number of the thermally conductive sheets 126a is not limited to three sheets, and it is also applicable when the number is greater than or less than three sheets.
  • the heating device 12a may further include an adhesive 125a disposed between the outer wall surface of the heating rod 122a and the inner wall surface of the thermally conductive sleeve 123a in some embodiments, and the adhesive 125a fills the space between the heating rod 122a and the thermally conductive sleeve 123a so that the heat can be better transferred from the heating rod 122 to the heat conducting sleeve 123 .
  • the adhesive 125a may be a high temperature adhesive such as glass in some embodiments.
  • the adhesive 125a can simultaneously complete the bonding and fixing of the heating wire 1222a, the temperature control wire 1223a and the electrode lead 124a, and the adhesive 125a can also be used for bonding the base 121a and the heating rod 122a.
  • the adhesive 125a may be a slurry prepared from glass ceramics, glass-ceramics, sealing glass, etc., which is solidified after being viscous and flowing through a high-temperature molten liquid phase.

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Abstract

一种气溶胶产生装置（1）及其加热器件（12），加热器件（12）用于加热气溶胶生成基质（2），加热器件（12）包括纵长的发热杆（122）以及紧密地套接于发热杆（122）上的导热套管（123），发热杆（122）包括柱状基材（1221）以及结合于该柱状基材（1221）上的发热元件。有益效果是：借由发热杆（122）与导热套管（123）的配合，降低了加热器件（12）的制造难度，提升加热器件（12）的刚度，同时可适用多种气溶胶生成基质（2）。

Description

气溶胶产生装置及其加热器件 技术领域
本发明涉及烘烤装置，尤其涉及一种气溶胶产生装置及其加热器件。
 背景技术
相关技术中的低温烘烤烟草发热体多为片式发热体，片式发热体与烟草接触面较大，有利于热量传递，口感较好，但片状基体刚度较差，陶瓷容易老化断裂，金属基材也会变形；另外，仅适配薄片状烟草，不适合丝状烟草；制备工艺复杂，需要多次印刷烘干烧结等工艺，不同膜层间具有热不匹配的问题。
 技术问题
针对上述技术中存在的不足之处，本发明提供一种改进的气溶胶产生装置及其加热器件。
 技术解决方案
为实现上述目的，本发明提供了一种加热器件，用于加热气溶胶生成基质，所述加热器件包括纵长的发热杆以及紧密地套接于该发热杆上的导热套管，所述发热杆包括柱状基材以及结合于该柱状基材上的发热元件。
在一些实施例中，所述发热元件包括发热丝。
在一些实施例中，所述柱状基材的表面形成有供所述发热丝嵌置的凹槽。
在一些实施例中，所述凹槽呈螺旋形分布于所述柱状基材的表面。
在一些实施例中，所述发热杆包括结合于所述柱状基材上的温控元件。
在一些实施例中，所述温控元件包括温控丝。
在一些实施例中，所述柱状基材的表面形成有供所述温控丝嵌置的凹槽。
在一些实施例中，所述凹槽呈螺旋形分布于所述柱状基材的表面。
在一些实施例中，所述柱状基材包括靠近所述发热杆的***端的第一段以及远离所述发热杆的***端的第二段，所述第一段的热导率大于所述第二段的热导率。
在一些实施例中，所述第一段和所述第二段端对端粘接在一起，且该粘接部位位于所述导热套管内。
在一些实施例中，所述柱状基材的***端包括尖头结构，所述尖头结构的最大直径处直径等于或略小于所述导热套管外径。
在一些实施例中，所述柱状基材具有中心孔，所述发热元件的至少一个电极引线经由该中心孔引出。
在一些实施例中，所述发热元件包括形成于所述柱状基材的发热膜。
在一些实施例中，所述发热元件包括套接于所述柱状基材表面的柱状发热金属网。
在一些实施例中，所述导热套管的***端具有尖头结构。
在一些实施例中，所述发热杆的外壁面和所述导热套管的内壁面之间设置有高温粘接剂，所述高温粘接剂填充所述发热杆和所述导热套管之间的间隙。
在一些实施例中，所述加热器件包括呈放射状结合于所述导热套管外壁面的至少一导热片。
在一些实施例中，所述至少一导热片的***端被尖锐化处理。
在一些实施例中，所述至少一导热片上设置有另一发热元件。
提供一种气溶胶产生装置，包括上述任一项中的加热器件。
 有益效果
本发明的有益效果是：借由发热杆与导热套筒的配合，降低了发热器件的制造难度，提升发热器件的刚度，同时可适用多种气溶胶生成基质。
 附图说明
图1为本发明一些实施例中的气溶胶产生装置在使用状态下的立体结构示意图。
图2为图1所示气溶胶产生装置在与气溶胶生成基质分离状态下的立体结构示意图。
图3为图1所示气溶胶产生装置的纵向剖面结构示意图。
图4为图3所示气溶胶产生装置的加热器件的立体结构示意图。
图5为图4所示加热器件的立体分解结构示意图。
图6为图5所示加热器件圆圈处的局部放大结构示意图。
图7为本发明另一些实施例中的加热器件的立体结构示意图。
图8为图7所示加热器件的立体分解结构示意图。
 本发明的最佳实施方式
为了更清楚地表述本发明，下面结合附图对本发明作进一步地描述。
图1及图2示出了本发明一些实施例中的气溶胶产生装置1，该气溶胶产生装置1用于对可拆卸地插接于其中的气溶胶生成基质2进行加热烘烤，以在非燃烧状态下释放气溶胶生成基质2中的气溶胶提取物。如图所示，气溶胶生成基质2可为设置成圆柱状的烟支。相应地，该气溶胶产生装置1的顶部设有尺寸与该气溶胶生成基质2相适配的插孔10。插孔10的旁边可设有一个插孔盖15，以在不用时覆盖该插孔10，防止异物进入到插孔10中，妨碍气溶胶产生装置1的使用。
一同参阅图3，该气溶胶产生装置1在一些实施例中可包括壳体11以及设置于该壳体11内的加热器件12、电源13和主板14。加热器件12则由插孔10的底部伸入到插孔10中，以便气溶胶生成基质2内***插孔10中时，加热器件12可由气溶胶生成基质2的底端纵向***到气溶胶生成基质2中，而与气溶胶生成基质2紧密接触。如此，则当加热器件12通电发热时，可以将热量传递给气溶胶生成基质2，而对气溶胶生成基质2加热发出气溶胶。电源13与加热器件12电性连接，并借由开关控制两者的通断。主板14则用于布置相关的主控电路。
一同参阅图4及图5，加热器件12在一些实施例中可包括用于固定在壳体11内的基座121、穿设于基座121中的纵长发热杆122、套设于发热杆122上的导热套管123以及连接于发热杆122上的电极引线124。
基座121在一些实施例中可呈圆环状，其可采用PEEK（聚醚醚酮）或者陶瓷等材料制成。基座121的中部设有供发热杆122插设固定的中心孔1210，中心孔1210内侧可设有凹槽1212，以便于安装电极引线124。
一同参阅图6，发热杆122在一些实施例中可呈圆柱状，其包括柱状基材1221以及结合于柱状基材1221上的发热丝1222和温控丝1223，发热丝1222和温控丝1223均经由电极引线124与电源13电性连接。柱状基材1221在一些实施例中可为采用陶瓷、金属等材料的带尖头结构1224的空心管状或实心棒状结构。柱状基材1221外周在一些实施例中可形成螺旋状凹槽1220，可用于卷绕发热丝1222和温控丝1223。发热丝1222可选用适当阻值的材质，如镍铬、铁铬铝电热合金丝、不锈钢丝、钨丝等，温控丝1223可选用高TCR（电阻温度系数）和高电阻率的材质或者热电偶。柱状基材1221在一些实施例中可选择上下两段热导率不一致的材料结合而成，如靠近上端尖头结构1224（即发热杆122的***端）的上段A发热区可选择热导率较高的氧化铝、氮化铝、碳化硅等材料，远离尖头结构1224的下段B可选用热导率低的材料，如二氧化硅、玻璃陶瓷、氧化锆以及多孔陶瓷等。目的为降低非发热区温度，上段A和下段B之间端对端通过无机黏合剂粘接，且该粘接部位位于导热套管123内，发热杆122强度可由导热套管123支撑，所以柱状基材1221两段设计并不会影响强度。在一些实施例中，尖头结构1224可呈圆锥状，其下侧最大直径处直径可等于或略小于导热套管123外径，以利于安装固定和利于气溶胶生成基质2***。在一些实施例中，当柱状基材1221为空心结构时，其中心孔还可以作为发热丝1222和/或温控丝1223的另一电极端的导线引出孔。在一些实施例中，发热杆122的发热功能除了卷绕发热丝1222的方法外，还可采用表面镀发热膜的方法实现，也可以使用柱状发热金属网与柱状基材1221嵌套在一起实现发热功能。
导热套管123在一些实施例中可采用高导热材料制成，以快速传导发热杆122发出的热量。具体地，导热套管123可以是金属和高导热陶瓷等材料制成，例如，采用镍铬合金、黄铜、碳化硅、或氮化铝等材料制成。在一些实施例中，加热器件12也采用带尖头结构的导热套管和嵌置于该导热套管中的棒状发热杆122制成。
加热器件12在一些实施例中还可包括设置于发热杆122的外壁面和导热套管123的内壁面之间的粘接剂125，粘接剂125填充发热杆122和导热套管123之间的间隙，以让热量能够更好地由发热杆122传递给导热套管123。粘接剂125在一些实施例中可为玻璃等高温粘接剂。该粘接剂125可同时完成发热丝1222、温控丝1223和电极引线124的粘接固定，该粘接剂125也可用于基座121和发热杆122的粘接。该粘接剂125在一些实施例中可以由玻璃陶瓷、微晶玻璃、封接玻璃等配置成的浆料，经过高温熔融液相粘性流动后凝固而成。
图7及图8示出了本发明另一些实施例中的加热器件12a，该加热器件12a可作为上述加热器件12的一个替代，其可包括用于固定在壳体11内的基座121a、穿设于基座121a中的纵长发热杆122a、套设于发热杆122a上的导热套管123a、连接于发热杆122a上的电极引线124以及呈放射状结合于导热套管123a外壁面的若干导热片126a。
基座121a在一些实施例中可呈圆环状，其可采用PEEK（聚醚醚酮）或者陶瓷等材料制成。基座121a的中部设有供发热杆122a插设固定的中心孔1210a，中心孔1210内侧可设有凹槽1212a，以便于安装电极引线124a。
一同参阅图6，发热杆122a在一些实施例中可呈圆柱状，其包括柱状基材1221a以及结合于柱状基材1221a上的发热丝1222a和温控丝1223a。柱状基材1221a在一些实施例中可为采用陶瓷、金属等材料的带尖头结构1224a的空心管状或棒状结构，柱状基材1221a外周在一些实施例中可形成螺旋状凹槽1220a，用于卷绕发热丝1222a和温控丝1223a。发热丝1222a可选用适当阻值的材质，如镍铬、铁铬铝电热合金丝、不锈钢丝、钨丝等，温控丝1223a可选用高TCR（电阻温度系数）和高电阻率的材质或者热电偶。柱状基材1221a在一些实施例中可选择上下两段热导率不一致的材料结合而成，如靠近上端尖头结构1224a的上段A发热区可选择热导率较高的氧化铝、氮化铝、碳化硅等材料，下段B可选用热导率低的材料，如二氧化硅、玻璃陶瓷、氧化锆以及多孔陶瓷等。目的为降低非发热区温度，上段A和下段B之间通过无机黏合剂粘接，发热杆122a强度可由导热套管123a支撑，所以柱状基材1221a两段设计并不会影响强度。在一些实施例中，尖头结构1224a可呈圆锥状，其下侧最大直径处直径可等于或略小于导热套管123a外径，以利于安装固定和利于气溶胶生成基质2***。在一些实施例中，当柱状基材1221a为空心结构时，其中心孔还可以作为发热丝1222a和/或温控丝1223a的另一电极端的导线引出孔。在一些实施例中，发热杆122a的发热功能除了卷绕发热丝1222a的方法外，还可采用表面镀发热膜的方法实现，也可以使用圆柱型发热金属网与柱状基材1221a嵌套在一起实现发热功能。
导热套管123a在一些实施例中可采用高导热材料制成，以快速传导发热杆122a发出的热量，以让热量在气溶胶生成基质2中分布更加均匀。具体地，导热套管123a可以是金属和高导热陶瓷等材料制成，例如，采用镍铬合金、黄铜、碳化硅、或氮化铝等材料制成。导热片126a在一些是实施例中可为三片，其均匀分布于导热套管123a的周向上。导热片126a的***端1261a可做尖锐化处理（例如，倒角处理），以利于***气溶胶生成基质2，导热片126a的末端1262a可只延长至气溶胶生成基质烘烤段以利于节能。导热片126a也可采用叶片缩小的形式延长至基座121a位置处。在一些实施例中，导热片126a与导热套管123a一体成型。在另一些实施例中，导热片126a安装于形成于导热套管123a的卡槽（未图示）中。在一些实施例中，导热片126a也可设置发热元件，例如印刷发热电路，从而导热片126a也可以发热，从而提升加热器件12a的发热效率，以及更加均匀的热量分布。可以理解地，导热片126a的数量并不局限于三片，大于或小于三片时，也可适用。
加热器件12a在一些实施例中还可包括设置于发热杆122a的外壁面和导热套管123a的内壁面之间的粘接剂125a，粘接剂125a填充发热杆122a和导热套管123a之间的间隙，以让热量能够更好地由发热杆122传递给导热套管123。粘接剂125a在一些实施例中可为玻璃等高温粘接剂。该粘接剂125a可同时完成发热丝1222a、温控丝1223a和电极引线124a的粘接固定，该粘接剂125a也可用于基座121a和发热杆122a的粘接。该粘接剂125a在一些实施例中可以由玻璃陶瓷、微晶玻璃、封接玻璃等配置成的浆料，经过高温熔融液相粘性流动后凝固而成。
可以理解地，以上实施例仅表达了本发明的优选实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。

Claims (20)

  1. 一种加热器件，用于加热气溶胶生成基质，其特征在于，所述加热器件包括纵长的发热杆以及紧密地套接于该发热杆上的导热套管，所述发热杆包括柱状基材以及结合于该柱状基材上的发热元件。
  2. 根据权利要求1所述的加热器件，其特征在于，所述发热元件包括发热丝。
  3. 根据权利要求2所述的加热器件，其特征在于，所述柱状基材的表面形成有供所述发热丝嵌置的凹槽。
  4. 根据权利要求3所述的加热器件，其特征在于，所述凹槽呈螺旋形分布于所述柱状基材的表面。
  5. 根据权利要求1所述的加热器件，其特征在于，所述发热杆包括结合于所述柱状基材上的温控元件。
  6. 根据权利要求5所述的加热器件，其特征在于，所述温控元件包括温控丝。
  7. 根据权利要求6所述的加热器件，其特征在于，所述柱状基材的表面形成有供所述温控丝嵌置的凹槽。
  8. 根据权利要求7所述的加热器件，其特征在于，所述凹槽呈螺旋形分布于所述柱状基材的表面。
  9. 根据权利要求1所述的加热器件，其特征在于，所述柱状基材包括靠近所述发热杆的***端的第一段以及远离所述发热杆的***端的第二段，所述第一段的热导率大于所述第二段的热导率。
  10. 根据权利要求9所述的加热器件，其特征在于，所述第一段和所述第二段端对端粘接在一起，且该粘接部位位于所述导热套管内。
  11. 根据权利要求1所述的加热器件，其特征在于，所述柱状基材的***端包括尖头结构，所述尖头结构的最大直径处直径等于或略小于所述导热套管外径。
  12. 根据权利要求1所述的加热器件，其特征在于，所述柱状基材具有中心孔，所述发热元件的至少一个电极引线经由该中心孔引出。
  13. 根据权利要求1所述的加热器件，其特征在于，所述发热元件包括形成于所述柱状基材的发热膜。
  14. 根据权利要求1所述的加热器件，其特征在于，所述发热元件包括套接于所述柱状基材表面的柱状发热金属网。
  15. 根据权利要求1所述的加热器件，其特征在于，所述导热套管的***端具有尖头结构。
  16. 根据权利要求1所述的加热器件，其特征在于，所述发热杆的外壁面和所述导热套管的内壁面之间设置有高温粘接剂，所述高温粘接剂填充所述发热杆和所述导热套管之间的间隙。
  17. 根据权利要求1所述的加热器件，其特征在于，所述加热器件包括呈放射状结合于所述导热套管外壁面的至少一导热片。
  18. 根据权利要求17所述的加热器件，其特征在于，所述至少一导热片的***端被尖锐化处理。
  19. 根据权利要求17所述的加热器件，其特征在于，所述至少一导热片上设置有另一发热元件。
  20. 一种气溶胶产生装置，其特征在于，包括权利要求1-19任一项所述的加热器件。
PCT/CN2022/079364 2021-03-11 2022-03-04 气溶胶产生装置及其加热器件 WO2022188715A1 (zh)

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