WO2023151382A1 - 雾化器及其雾化芯 - Google Patents

雾化器及其雾化芯 Download PDF

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Publication number
WO2023151382A1
WO2023151382A1 PCT/CN2022/139400 CN2022139400W WO2023151382A1 WO 2023151382 A1 WO2023151382 A1 WO 2023151382A1 CN 2022139400 W CN2022139400 W CN 2022139400W WO 2023151382 A1 WO2023151382 A1 WO 2023151382A1
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WO
WIPO (PCT)
Prior art keywords
heating
heating unit
unit
atomizing core
heat generating
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PCT/CN2022/139400
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English (en)
French (fr)
Inventor
陈武
何雪琴
李润达
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深圳麦克韦尔科技有限公司
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Publication of WO2023151382A1 publication Critical patent/WO2023151382A1/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
    • 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
    • A24F40/10—Devices using liquid 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
    • A24F40/48—Fluid transfer means, e.g. pumps
    • 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 an atomizing device, more specifically, an atomizer and an atomizing core thereof.
  • the atomizing cores of electronic atomization devices used for inhaling aerosols in the related art are mainly divided into two types: strip-shaped atomizing cores and cylindrical atomizing cores.
  • the strip-shaped atomizing core is to embed the heating element on the surface of the long porous body through silk screen printing, coating or direct bonding of metal sheets; since the heating element is exposed on the surface of the porous body and directly connected to the atomization chamber, there is enough mist
  • the air channel of this type of atomizing core is relatively complicated, and the mist suction needs to go through a long air channel, which will affect the reduction degree of aroma and the temperature of the mist; in addition, the longer Moreover, the complex airway can easily cause mist to condense, and accumulate to form large particles of liquid droplets to block the airway, affecting the amount of mist output, and in severe cases, it will also cause liquid leakage, which has a very negative impact on the suction experience.
  • Cylindrical atomizing cores generally put the heating element into the central through hole of the cylinder, and the surrounding is wrapped by a porous body.
  • the mist (aerosol) is directly transmitted from the central hole to the suction nozzle.
  • the airway is short and the structure is simple. Blockage, fast mist transmission, better experience of aroma reduction and mist temperature; however, the central hole of the cylindrical atomizing core is small, and the mist is directly generated in the central hole during the atomization process, and there is not enough atomization and storage The amount of fog produced is also relatively low.
  • the technical problem to be solved by the present invention is to provide an improved atomizer and atomizing core thereof.
  • the present invention provides an atomizing core, which includes a porous body and a heating element, the porous body includes a first end face, a second end face opposite to the first end face, and the first end face The central channel extending to the second end surface; the heating element is arranged on the first end surface, and includes a first heating unit, an arc-shaped second heating unit, and an arc-shaped third heating unit; the second heating element The unit and the third heating unit are distributed on two opposite sides of the first heating unit at intervals, and share the center of a circle; one end of the second heating unit and the third heating unit are respectively connected to the first heating unit Electrical connection; the first heating unit includes a central through hole, and the central channel communicates with the central through hole.
  • the second heating unit includes at least two arc-shaped heating parts arranged in parallel at intervals and electrically connected in series with each other.
  • the length of at least one arc-shaped heat generating portion close to the central through hole among the at least two arc-shaped heat generating portions is shorter than the length of at least one arc-shaped heat generating portion far from the central through hole.
  • the at least two arc-shaped heating parts include a first heating part, a second heating part and a third heating part, and the first heating part, the second heating part and the third heating part are connected with the first heating unit They share the same center and are arranged in parallel and at intervals.
  • the second heating unit further includes a fourth heating unit, one end of the fourth heating unit is connected to the first heating unit, and the other end of the fourth heating unit is connected to the first heating unit. One end is connected to realize the electrical connection between the second heating unit and the first heating unit.
  • the third heating unit includes at least two other arc-shaped heating parts arranged in parallel at intervals and electrically connected in series with each other.
  • the length of at least one other arc-shaped heat generating portion close to the central through hole among the at least two arc-shaped heat generating portions is shorter than that of at least one other arc-shaped heat generating portion far from the central through hole. length.
  • the at least two other arc-shaped heat generating parts include a fifth heat generating part, a sixth heat generating part and a seventh heat generating part, and the fifth heat generating part, the sixth heat generating part and the seventh heat generating part are the same as the first
  • the heating units have a common center and are arranged in parallel and at intervals.
  • the third heating unit further includes an eighth heating unit, one end of the eighth heating unit is connected to the first heating unit, and the other end of the eighth heating unit is connected to the fifth heating unit.
  • One end of the heating unit is connected to realize the electrical connection between the third heating unit and the first heating unit.
  • the heating element includes a first electrode unit and a second electrode unit, and the first electrode connecting unit and the second electrode connecting unit are arranged at intervals on the other two opposite sides of the first heating unit, And connected with the other end of the second heating unit and the third heating unit respectively.
  • the first electrode connection unit and the second electrode connection unit are arranged in parallel at two opposite sides of the second heat generating unit and the third heat generating unit.
  • the heating element is roughly circular.
  • the porous body is a ceramic porous body.
  • the heating element is a heating film formed on the surface of the porous body or a metal heating sheet bonded to the surface of the porous body.
  • an atomizer comprising the atomizing core in any one of the above items.
  • the atomizer further includes a casing; the atomizing core is disposed in the casing; the casing includes an atomization chamber facing the first end face, and an atomizing chamber facing the second end face A liquid storage cavity and an air outlet channel communicated with the central channel.
  • the atomization chamber is arranged at the bottom of the casing; the air outlet channel is arranged longitudinally in the casing and communicates with the atomization chamber; the liquid storage chamber is arranged at the atomization core and surround the outlet channel.
  • the beneficial effect of the present invention is that the heating element of the atomization core adopts a concentric arc heating unit, which generates heat evenly and can significantly increase the amount of mist.
  • Fig. 1 is a longitudinal sectional view of an atomizer in some embodiments of the present invention.
  • Fig. 2 is a schematic perspective view of the three-dimensional structure of the atomizing core shown in Fig. 1 when the bottom faces upward.
  • Fig. 3 is a schematic perspective view of the three-dimensional structure of the heating element of the atomizing core shown in Fig. 1 .
  • Fig. 1 and Fig. 2 show the nebulizer 1 in some embodiments of the present invention, and this nebulizer 1 is used for heating and nebulizing the liquid aerosol generating substrate, and for the user to inhale, and it can be in some embodiments It has a flat column shape for easy handling.
  • the atomizer 1 includes a housing 10 , an atomizing core 20 and a pair of electrodes 30 in some embodiments.
  • the casing 10 is used to form an atomization chamber 11 , a liquid storage chamber 13 and an air outlet channel 15 .
  • the atomizing core 20 is arranged in the casing 10 and is used for heating and atomizing the liquid aerosol generating substrate.
  • a pair of electrodes 30 are electrically connected to the atomizing core 20 for electrically connecting the atomizing core 20 to the battery device.
  • the housing 10 may include an atomization chamber 11 , a liquid storage chamber 13 and an air outlet channel 15 in some embodiments.
  • the atomizing chamber 11 is arranged at the bottom of the casing 10 and is used for containing the aerosol and mixing the aerosol with the ambient air.
  • the air outlet channel 15 is longitudinally arranged in the casing 10 and communicated with the atomization chamber 11 for leading out the mixture of aerosol and air.
  • the liquid storage chamber 13 is disposed on the upper part of the atomizing core 12 and surrounds the air outlet channel 15 for containing the liquid aerosol generating substrate.
  • the upper end of the casing 10 can form a flat suction nozzle communicated with the air outlet channel 15 to facilitate suction for users.
  • the atomizing core 20 may include a porous body 21 and a heating element 23 in some embodiments.
  • the porous body 21 is used to deliver the liquid aerosol-generating substrate in the liquid storage chamber 13 to the heating element 23 .
  • the heating element 23 is arranged on the porous body 21 and is used to generate high temperature after being energized to heat the atomized liquid aerosol generating substrate.
  • the porous body 21 can be a porous ceramic body in some embodiments, preferably a sintered porous ceramic body, so as to transport the liquid aerosol-generating matrix by capillary force.
  • the porous ceramics can be made of alumina, silicon oxide, silicon nitride, silicate, silicon carbide, etc., and the porosity and average pore diameter are not limited.
  • the porous ceramic body can be formed by slip casting or powder compression molding, and the shape of the base body is not limited; the size of the central through hole can be 0.1mm-5.00mm, and the shape and number of the through holes can be unlimited .
  • the porous body 21 may include a first end face 211, a second end face 213 and a central channel 215 in some embodiments, the first end face 211 is arranged at the bottom of the porous body 21 for installing heating elements 23, to form an atomized surface.
  • the second end surface 213 is disposed on the top of the porous body 21 on the side opposite to the first end surface 211, and is used for contacting with the liquid aerosol generating substrate to form a liquid-absorbing surface.
  • the central channel 215 is disposed in the porous body 21 and extends from the first end surface 211 to the second end surface, for connecting the atomization chamber 11 with the air outlet channel 15 .
  • the heating element 23 can adopt a circular or quasi-circular design, which is more conducive to the full use of the heating surface.
  • the arc-shaped heating part can be designed around the arc-shaped heating part in a smaller size, and the length of the arc-shaped heating part can be extended to obtain higher resistance.
  • the surrounding design of the arc-shaped heating part of the heating element 23 can fully gather the heating heat, combined with the small size brought by the circular or quasi-circular shape, the temperature in the arc-shaped heating part can be further increased, and more mist can be generated.
  • the heating element 23 is exposed on the surface of the porous body 21 and is directly connected to the atomization chamber 11. During the suction process, there is enough space for more mist generated by the heating element 23 on the surface of the porous body 21, and Short storage for a noticeable boost in mist volume.
  • the heating element 23 may include a first heating unit 231 , an arc-shaped second heating unit 232 and an arc-shaped third heating unit 233 .
  • the first heating unit 231 is disposed on the first end surface 211 of the porous body 21 and is used for generating heat in the middle.
  • the second heating unit 232 and the third heating unit 233 are spaced and symmetrically distributed on two opposite sides of the first heating unit 231 and share the same circle center with the first heating unit 231 , and are respectively used for heating on both sides.
  • the ends of the second heating unit 232 and the third heating unit 233 on different sides from the first heating unit 231 are respectively electrically connected to them.
  • the main material of the heating element 23 can be iron-chromium alloy, iron-chromium-aluminum alloy, iron-chromium-nickel alloy and chromium-nickel alloy, titanium alloy, stainless steel alloy, Karma alloy and other metal alloys.
  • the heating element 23 pattern can be obtained by one or more methods such as die stamping, casting, mechanical weaving, chemical etching, ion sputtering, electroplating, screen printing, etc.; the thickness of the metal heating element is 0.01mm-2.00mm, and the width is 0.05mm- 3mm, it can be dense metal or porous metal (aperture 0.01-1.00mm).
  • the atomizing core 20 can be formed integrally with the heating element 23 and the porous body 21, and obtained by debinding and sintering; it can also be obtained by preparing the porous body 21 first, and then preparing the metal heating element 23, which can be obtained after debinding and sintering Central through-hole chip heating element.
  • the graphic shapes of the porous body 21 and the heating element 23 are not limited.
  • the first heating unit 231 may be circular in some embodiments, and may include a central channel 2310 communicating with the central channel 215 of the porous body 21 .
  • the central through hole 2310 realizes the straight-through connection between the atomizing chamber 11 and the suction nozzle. During the suction process, the mist is directly transmitted to the suction nozzle from the central through hole 2310.
  • the airway is simple, which can alleviate the condensation of the mist in the airway and reduce blockage. And leakage, increase the amount of mist, and make the mist directly and quickly enter the mouth of the smoker, ensuring the taste of the suction.
  • the second heat generating unit 232 may include a first heat generating portion 2321 , a second heat generating portion 2322 and a third heat generating portion 2323 which are also roughly arc-shaped.
  • the first heat generating part 2321, the second heat generating part 2322 and the third heat generating part 2323 are concentric with the first heat generating unit 231 and arranged in parallel with intervals; it can be understood that the number of arc-shaped heat generating parts of the second heat generating unit 232 is not limited to Three, two or more may also apply.
  • the length of at least one arc-shaped heating portion close to the central through hole 2310 among the at least two arc-shaped heating portions of the second heating unit 232 is shorter than at least one circle away from the central through hole 2310.
  • the first heat generating portion 2321, the second heat generating portion 2322 and the third heat generating portion 2323 are sequentially away from the central through hole 2310; and the length of the first heat generating portion 2321 is smaller than the length of the second heat generating portion 2322, The length of the portion 2322 is smaller than the length of the third heat generating portion 2323 .
  • the successively increasing lengths can increase the heating area of the heating part and further increase the amount of smoke.
  • the second heating unit 232 in some embodiments may also include three fourth heating parts 2324 roughly in the shape of strips, two of the three fourth heating parts 2324 heat the first part 2321, the second heating part 2322, and the third heating part 2323 are electrically connected in series in sequence, and the two ends of the other of the three fourth heating parts 2324 are electrically connected to the first heating unit 231 and the first heating part 2321 respectively. connect.
  • the third heat generating unit 233 may include a fifth heat generating portion 2331 , a sixth heat generating portion 2332 and a seventh heat generating portion 2333 that are also roughly arc-shaped.
  • the fifth heating part 2331 , the sixth heating element 2332 and the seventh heating part 2333 share the same circle center with the first heating unit 231 and are arranged in parallel and spaced in sequence. It can be understood that the number of arc-shaped heat generating parts of the third heat generating unit 233 is not limited to three, and two or more are also applicable.
  • the length of at least one arc-shaped heating portion close to the central through hole 2310 among the at least two arc-shaped heating portions of the third heating unit 233 is shorter than at least one circle away from the central through hole 2310.
  • the fifth heat generating portion 2331, the sixth heat generating portion 2332, and the seventh heat generating portion 2333 are sequentially away from the central through hole 2310; and the length of the fifth heat generating portion 2331 is smaller than the length of the sixth heat generating portion 2332, The length of the portion 2332 is smaller than the length of the seventh heat generating portion 2333 .
  • the successively increasing lengths can increase the heating area of the heating part and further increase the amount of smoke.
  • the third heating unit 233 in some embodiments may also include three eighth heating parts 2334 roughly in the shape of strips, two of the three eighth heating parts 2334 heat the fifth 2331, the sixth heating unit 2332, and the seventh heating unit 2333 are sequentially electrically connected in series, and the two ends of the other one of the three eighth heating units 2324 are electrically connected to the first heating unit 231 and the fifth heating unit 2321 respectively. connect.
  • one end of the other of the three fourth heat generating parts 2324 and the other of the three eighth heat generating parts 2334 are respectively connected to two opposite sides of the first heat generating unit 231, thereby realizing the second
  • the second heating unit 232 and the third heating unit 233 are electrically connected to the first heating unit 231 .
  • the heating element 23 may further include a first electrode connection unit 234 and a second electrode connection unit 235 in some embodiments.
  • the first electrode connecting unit 234 and the second electrode connecting unit 235 are arranged on the other two opposite sides of the first heating unit 231 in parallel and at intervals, and are connected to the other ends of the third heating part 2323 and the seventh heating part 2333 respectively, and are used It is electrically connected with a pair of electrodes 30 .

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Abstract

一种雾化器（1）及雾化芯（20），雾化芯（20）包括多孔体（21）和发热元件（23），多孔体（21）包括第一端面（211）、与第一端面（211）相对的第二端面（213），以及由第一端面（211）延伸到第二端面（213）的中心通道（215）；发热元件（23）设置于第一端面（211）上，并包括第一发热单元（231）以及圆弧形第二发热单元（232）和圆弧形第三发热单元（233），第二发热单元（232）和第三发热单元（233）间隔地分布于第一发热单元（231）的两相对侧且共圆心，第二发热单元（232）和第三发热单元（233）的一端分别与第一发热单元（231）电性连接；第一发热单元（231）包括中心通孔，中心通道（215）与中心通孔相连通。雾化芯（20）的发热元件（23）采用同心弧形的发热单元，发热比较均匀，可以提高雾气量。

Description

雾化器及其雾化芯 技术领域
本发明涉及一种雾化装置，更具体地说，涉及一种雾化器及其雾化芯。
 背景技术
相关技术中的用于吸食气溶胶的电子雾化装置的雾化芯主要分为两种：长条状雾化芯和圆柱状雾化芯。
长条状雾化芯是通过丝印、镀膜或金属片直接粘合等方式将发热元件嵌入长条多孔体的表面；由于发热元件裸露在多孔体表面且直接连接雾化腔，因此有足够的雾化空间和雾气存储空间，产生较大的雾量；但该类型雾化芯雾气道相对复杂，雾气抽吸需要经过较长的气道，会影响香气的还原度和雾气温度；此外，较长且复杂的气道还易造成雾气冷凝，并堆积形成大颗粒液滴堵塞气道，影响出雾量，严重时还会造成漏液现象，对抽吸体验感产生非常不利的影响。
圆柱状雾化芯一般将发热元件放入圆柱中心通孔位置，周围由多孔体进行包裹，抽吸时雾气（气溶胶）从中心孔直接传输至吸嘴，气道较短，结构简单，不易堵塞，雾气传输速度快，香气还原性和雾气温度的体验感较好；然而圆柱状雾化芯中心孔较小，在雾化过程中雾气直接产生在中心孔内，没有足够的雾化和存储空间，所产生的雾量也相对较低。
 技术问题
本发明要解决的技术问题在于，提供一种改进的雾化器及其雾化芯。
 技术解决方案
为解决上述技术问题，本发明提供了一种雾化芯，包括多孔体和发热元件，该多孔体包括第一端面、与所述第一端面相对的第二端面，以及由所述第一端面延伸到到第二端面的中心通道；该发热元件设置于所述第一端面上，并包括第一发热单元以及圆弧形第二发热单元和圆弧形第三发热单元；所述第二发热单元和所述第三发热单元间隔地分布于所述第一发热单元的两相对侧，且共圆心；所述第二发热单元和所述第三发热单元的一端分别与所述第一发热单元电性连接；所述第一发热单元包括中心通孔，所述中心通道与所述中心通孔相连通。
优选地，所述第二发热单元包括平行间隔布置且互相电性串联的至少两个圆弧形发热部。
优选地，所述至少两个圆弧形发热部中靠近所述中心通孔的至少一圆弧形发热部的长度小于远离所述中心通孔的至少一圆弧形发热部的长度。
优选地，所述至少两个圆弧形发热部包括第一发热部、第二发热部以及第三发热部，所述第一发热部、第二发热部以及第三发热部与第一发热单元共圆心且依次平行间隔排列。
优选地，所述第二发热单元还包括第四发热部，所述第四发热部的一端与所述第一发热单元相连接，所述第四发热部另一端与所述第一发热部的一端相连接，以实现所述第二发热单元与所述第一发单元的电性连接。
优选地，所述第三发热单元包括平行间隔布置且互相电性串联的至少两个另一圆弧形发热部。
优选地，所述至少两个圆弧形发热部中靠近所述中心通孔的至少一另一圆弧形发热部的长度小于远离所述中心通孔的至少一另一圆弧形发热部的长度。
优选地，所述至少两个另一圆弧形发热部包括第五发热部、第六发热部以及第七发热部，所述第五发热部、第六发热部以及第七发热部与第一发热单元共圆心且依次平行间隔排列。
优选地，所述第三发热单元还包括第八发热部，所述第八发热部的一端与所述第一发热单元相连接，所述第八发热部的另一端与所述第五发热部的一端相连接，以实现所述第三发热单元与所述第一发单元的电性连接。
优选地，所述发热元件包括第一电极单元以及第二电极单元，所述第一电极连接单元和所述第二电极连接单元分别间隔地设置于所述第一发热单元的另两相对侧，并分别与所述第二发热单元和所述第三发热单元的另一端相连接。
优选地，所述第一电极连接单元和所述第二电极连接单元平行间隔布置于所述第二发热单元和所述第三发热单元的两相对侧。
优选地，所述发热元件大致呈圆形。
优选地，所述多孔体为陶瓷多孔体。
优选地，所述发热元件为形成于所述多孔体表面的发热膜或者结合于多孔体表面的金属发热片。
还提供一种雾化器，包括上述任一项中的雾化芯。
优选地，所述雾化器还包括壳体；所述雾化芯设置于壳体内；所述壳体包括与所述第一端面正对的雾化腔、与所述第二端面正对的储液腔以及与所述中心通道相连通的出气通道。
优选地，所述雾化腔设置于所述壳体底端；所述出气通道纵向设置于所述壳体内且与所述雾化腔相连通；所述储液腔设置于所述雾化芯的上部，并环绕所述出气通道。
 有益效果
本发明的有益效果：雾化芯的发热元件采用同心弧形的发热单元，发热均匀，可以显著提升雾气量。
 附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图1是本发明一些实施例中的雾化器的纵向剖视图。
图2是图1所示雾化芯底部朝上时的立体结构示意图。
图3是图1所示雾化芯的加热元件的立体结构示意图。
 本发明的实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
图1及图2示出了本发明一些实施例中的雾化器1，该雾化器1用于加热雾化液态气溶生成基质，并供使用者抽吸，其在一些实施例中可呈扁平柱状，以方便手握。该雾化器1在一些实施例中包括壳体10、雾化芯20和一对电极30。该壳体10用于形成雾化腔11、储液腔13以及出气通道15。该雾化芯20设置于壳体10内，用于加热雾化液态气溶胶生成基质。一对电极30电性地连接于雾化芯20上，用于将雾化芯20与电池装置电性连接。
如图1所示，该壳体10在一些实施例中可包括雾化腔11、储液腔13以及出气通道15。该雾化腔11设置于壳体10底端，用于收容气溶胶并将气溶胶与环境空气进行混合。出气通道15纵向设置于壳体10内且与雾化腔11相连通，用于导出气溶胶和空气的混合物。该储液腔13设置于雾化芯12的上部，并环绕出气通道15，用于收容液态气溶胶生成基质。该壳体10的上端可形成一个与出气通道15相连通的扁平吸嘴，以方便使用者抽吸。
如图2所示，该雾化芯20在一些实施例中可包括多孔体21和加热元件23。该多孔体21用于将储液腔13中的液态气溶胶生成基质输送给加热元件23。所述加热元件23设置于多孔体21上，用于在通电后产生高温，以加热雾化液态气溶胶生成基质。该多孔体21在一些实施例中可为多孔陶瓷体，优选地为烧结式多孔陶瓷体，以藉由毛细力输送液态气溶胶生成基质。该多孔陶瓷可为氧化铝、氧化硅、氮化硅、硅酸盐和碳化硅等制成，而孔隙率、平均孔径，可不做限制。该多孔陶瓷体在一些实施例中可使用注浆成型或粉体压制成型等方式进行成型，基体形状不受限制；中心通孔大小可为0.1mm-5.00mm，通孔形状以及数量可不做限制。
再如图2所示，该多孔体21在一些实施例中可包括第一端面211、第二端面213和中心通道215，该第一端面211设置于多孔体21的底部，用于安装发热元件23，以形成雾化面。第二端面213与第一端面211相对侧设置于多孔体21的顶部，用于与液态气溶胶生成基质相接触，以形成吸液面。中心通道215设置于多孔体21内且从第一端面211延伸到第二端面，用于将雾化腔11与出气通道15相连通。
在一些实施例中发热元件23可采用圆形或类圆形设计，更有利发热面的充分利用，可在较小的尺寸下通过弧形发热部的环绕设计，延长弧形发热部长度，获得较高阻值。发热元件23的弧形发热部的环绕设计可充分聚集发热热量，结合圆形或类圆形带来的小尺寸化，使弧形发热部内的温度进一步提高，产生更多的雾气。
在一些实施例中，发热元件23裸露在多孔体21表面，与雾化腔11直接连接，在抽吸过程，有足够的空间以供多孔体21表面的发热元件23产生的更多雾气，并进行短暂的存储，使雾气量显著提升。
该发热元件23在一些实施例中可包括第一发热单元231、圆弧形的第二发热单元232以及圆弧形的第三发热单元233。该第一发热单元231设置在多孔体21的第一端面211，用于中部发热。该第二发热单元232、第三发热单元233并间隔地、对称地分布于该第一发热单元231的两相对侧并与该第一发热单元231共圆心，分别用于两侧发热。该第二发热单元232和第三发热单元233与第一发热单元231不同侧的一端分别与其电性连接。
该发热元件23的主要材质可为铁铬合金、铁铬铝合金、铁铬镍合金和铬镍合金、钛合金、不锈钢合金、卡玛合金等金属合金。该发热元件23图形可以通过模具冲压、铸造、机械编织、化学蚀刻、离子溅射、电镀、丝网印刷等一种或几种方式获得；金属发热元件厚度0.01mm-2.00mm，宽度0.05mm-3mm，可为致密金属，也可为多孔金属（孔径0.01-1.00mm）。
雾化芯20在一些实施例中可采用发热元件23与多孔体21一体成型，通过排胶、烧结获得；也可以先制备多孔体21，再制备金属发热元件23，经排胶和烧结后获得中心通孔片式发热体。多孔体21和发热元件23图形形状可不做限制。
一同参阅图3，该第一发热单元231在一些实施例中可呈圆环形，其可包括中心通道2310，该中心通道2310与多孔体21的中心通道215相连通。
中心通孔2310实现雾化腔11与吸嘴直通式的连接，在抽吸过程中雾气由中心通孔2310直接传输至吸嘴，气道简单，既可以缓解雾气在气道中的凝结，减少堵塞和漏液，提高雾气量，又可使雾气直接、快速进入抽吸者口中，保证抽吸口感。
再如图3所示，该第二发热单元232在一些实施例中可包括也大致呈圆弧形的第一发热部2321、第二发热部2322以及第三发热部2323。第一发热部2321、第二发热部2322以及第三发热部2323与第一发热单元231共圆心且依次平行间隔排列；可以理解地，第二发热单元232的圆弧形发热部的数量不限于三个，两个或三个以上也可适用。
再如图3所示，该第二发热单元232的至少两个圆弧形发热部中靠近中心通孔2310的至少一圆弧形发热部的长度小于远离所述中心通孔2310的至少一圆弧形发热部的长度。在一些实施方式中，第一发热部2321、第二发热部2322以及第三发热部2323依次远离中心通孔2310；并且第一发热部2321的长度小于第二发热部2322的长度，第二发热部2322的长度小于第三发热部2323的长度。依次递增的长度能提高发热部的发热面积，进一步提高烟雾量。
再如图3所示，该第二发热单元232在一些实施例中还可包括大致呈条状的三个第四发热部2324，该三个第四发热部2324中的两个将第一发热部2321、第二发热部2322、第三发热部2323依次电性串联连接，该三个第四发热部2324中的另一个的两端分别与第一发热单元231和第一发热部2321电性连接。
再如图3所示，该第三发热单元233在一些实施例中可包括也大致呈圆弧形的第五发热部2331、第六发热部2332以及第七发热部2333。第五发热部2331、第六发热元件2332以及第七发热部2333与第一发热单元231共圆心且依次平行间隔排列。可以理解地，第三发热单元233的圆弧形发热部的数量不限于三个，两个或三个以上也可适用。
再如图3所示，该第三发热单元233的至少两个圆弧形发热部中靠近中心通孔2310的至少一圆弧形发热部的长度小于远离所述中心通孔2310的至少一圆弧形发热部的长度。在一些实施方式中，第五发热部2331、第六发热部2332以及第七发热部2333依次远离中心通孔2310；并且第五发热部2331的长度小于第六发热部2332的长度，第六发热部2332的长度小于第七发热部2333的长度。依次递增的长度能提高发热部的发热面积，进一步提高烟雾量。
再如图3所示，该第三发热单元233在一些实施例中还可包括大致呈条状的三个第八发热部2334，该三个第八发热部2334中的两个将第五发热部2331、第六发热部2332、第七发热部2333依次电性串联连接，该三个第八发热部2324中的另一个的两端分别与第一发热单元231和第五发热部2321电性连接。
再如图3所示，该三个第四发热部2324中的另一个和该三个第八发热部2334中的另一个的一端分别连接于第一发热单元231的两相对侧，从而实现第二发热单元232和第三发热单元233与第一发热单元231的电性连接。
再如图2和3所示，该发热元件23在一些实施例中还可包括第一电极连接单元234以及第二电极连接单元235。第一电极连接单元234和第二电极连接单元235平行间隔地设置于第一发热单元231的另两相对侧，并分别与第三发热部2323和第七发热部2333的另一端相连接，并用于与一对电极30电性连接。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (17)

  1. 一种雾化芯，包括多孔体（21）和发热元件（23），该多孔体（21）包括第一端面（211）、与所述第一端面（211）相对的第二端面（213）以及由所述第一端面（211）延伸到到第二端面（213）的中心通道（215）；其特征在于，该发热元件（23）设置于所述第一端面（211）上，并包括第一发热单元（231）以及圆弧形第二发热单元（232）和圆弧形第三发热单元（233）；所述第二发热单元（232）和所述第三发热单元（233）间隔地分布于所述第一发热单元（231）的两相对侧，且共圆心；所述第二发热单元（232）和所述第三发热单元（233）的一端分别与所述第一发热单元（231）电性连接；所述第一发热单元（231）包括中心通孔（2310），所述中心通道（215）与所述中心通孔（2310）相连通。
  2. 根据权利要求1所述的雾化芯，其特征在于，所述第二发热单元（232）包括平行间隔布置且互相电性串联的至少两个圆弧形发热部。
  3. 根据权利要求2所述的雾化芯，其特征在于，所述至少两个圆弧形发热部中靠近所述中心通孔（2310）的至少一圆弧形发热部的长度小于远离所述中心通孔（2310）的至少一圆弧形发热部的长度。
  4. 根据权利要求2所述的雾化芯，其特征在于，所述至少两个圆弧形发热部包括第一发热部（2321）、第二发热部（2322）以及第三发热部（2323），所述第一发热部（2321）、第二发热部（2322）以及第三发热部（2323）与第一发热单元（231）共圆心且依次平行间隔排列。
  5. 根据权利要求4所述的雾化芯，其特征在于，所述第二发热单元（232）还包括第四发热部（2324），所述第四发热部（2324）的一端与所述第一发热单元（231）相连接，所述第四发热部（2324）另一端与所述第一发热部（2321）的一端相连接，以实现所述第二发热单元（232）与所述第一发热单元（231）的电性连接。
  6. 根据权利要求1至5任一项所述的雾化芯，其特征在于，所述第三发热单元（233）包括平行间隔布置且互相电性串联的至少两个另一圆弧形发热部。
  7. 根据权利要求6所述的雾化芯，其特征在于，所述至少两个另一圆弧形发热部中靠近所述中心通孔（2310）的至少一另一圆弧形发热部的长度小于远离所述中心通孔（2310）的至少一另一圆弧形发热部的长度。
  8. 根据权利要求6所述的雾化芯，其特征在于，所述至少两个另一圆弧形发热部包括第五发热部（2331）、第六发热部（2332）以及第七发热部（2333），所述第五发热部（2331）、第六发热部（2332）以及第七发热部（2333）与第一发热单元（231）共圆心且依次平行间隔排列。
  9. 根据权利要求8所述的雾化芯，其特征在于，所述第三发热单元（233）还包括第八发热部（2334），所述第八发热部（2334）的一端与所述第一发热单元（231）相连接，所述第八发热部（2334）的另一端与所述第五发热部（2331）的一端相连接，以实现所述第三发热单元（233）与所述第一发热单元（231）的电性连接。
  10. 根据权利要求1所述的雾化芯，其特征在于，所述发热元件（23）包括第一电极连接单元（234）以及第二电极连接单元（235），所述第一电极连接单元（234）和所述第二电极连接单元（235）分别间隔地设置于所述第一发热单元（231）的另两相对侧，并分别与所述第二发热单元（232）和所述第三发热单元（233）的另一端相连接。
  11. 根据权利要求10所述的雾化芯，其特征在于，所述第一电极连接单元（234）和所述第二电极连接单元（235）平行间隔布置于所述第二发热单元（232）和所述第三发热单元（233）的两相对侧。
  12. 根据权利要求11所述的雾化芯，其特征在于，所述发热元件（23）大致呈圆形。
  13. 根据权利要求1所述的雾化芯，其特征在于，所述多孔体（21）为陶瓷多孔体。
  14. 根据权利要求13所述的雾化芯，其特征在于，所述发热元件（23）为形成于所述多孔体（21）表面的发热膜或者结合于多孔体（21）表面的金属发热片。
  15. 一种雾化器，其特征在于，包括权利要求1至14任一项所述的雾化芯（20）。
  16. 根据权利要求15所述的雾化器，其特征在于，还包括壳体；所述雾化芯（20）设置于壳体（10）内；所述壳体（10）包括与所述第一端面（211）正对的雾化腔（11）、与所述第二端面（213）正对的储液腔（13）以及与所述中心通道（215）相连通的出气通道（15）。
  17. 根据权利要求16所述的雾化器，其特征在于，所述雾化腔（11）设置于所述壳体（10）底端；所述出气通道（15）纵向设置于所述壳体内且与所述雾化腔（11）相连通；所述储液腔（13）设置于所述雾化芯（20）的上部，并环绕所述出气通道（15）。
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CN215992757U (zh) * 2021-09-22 2022-03-11 常州市派腾电子技术服务有限公司 雾化芯、雾化器及气溶胶发生装置
CN217609584U (zh) * 2022-02-09 2022-10-21 深圳麦克韦尔科技有限公司 雾化器及其雾化芯
CN114668183A (zh) * 2022-03-31 2022-06-28 海南摩尔兄弟科技有限公司 电子雾化装置及其雾化芯、多孔体和多孔体的制造方法
CN114668182A (zh) * 2022-03-31 2022-06-28 海南摩尔兄弟科技有限公司 电子雾化装置及其雾化芯
CN114847532A (zh) * 2022-03-31 2022-08-05 海南摩尔兄弟科技有限公司 电子雾化装置及其雾化芯

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