WO2022222760A1 - 雾化芯及烟弹 - Google Patents

雾化芯及烟弹 Download PDF

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Publication number
WO2022222760A1
WO2022222760A1 PCT/CN2022/085577 CN2022085577W WO2022222760A1 WO 2022222760 A1 WO2022222760 A1 WO 2022222760A1 CN 2022085577 W CN2022085577 W CN 2022085577W WO 2022222760 A1 WO2022222760 A1 WO 2022222760A1
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WIPO (PCT)
Prior art keywords
porous body
insulating
heat
porous
atomizing core
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PCT/CN2022/085577
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English (en)
French (fr)
Inventor
何智安
李亚勇
Original Assignee
深圳市长盈精密技术股份有限公司
东莞市阿尔法电子科技有限公司
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.)
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Priority claimed from CN202110430804.5A external-priority patent/CN113115987A/zh
Priority claimed from CN202110430799.8A external-priority patent/CN113115986A/zh
Application filed by 深圳市长盈精密技术股份有限公司, 东莞市阿尔法电子科技有限公司 filed Critical 深圳市长盈精密技术股份有限公司
Publication of WO2022222760A1 publication Critical patent/WO2022222760A1/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
    • A24F40/10—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
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • the present application relates to the field of electronic cigarettes, in particular to an atomizing core and a cartridge.
  • the key component of the e-liquid atomization type electronic cigarette is the atomizer.
  • the atomizer needs an atomizing core that penetrates the e-liquid.
  • the atomizing core is originally made of organic cotton material, but the organic cotton is prone to burning problems and produces peculiar smells. affect usage.
  • a technical solution of using a ceramic porous body as the atomizing core has appeared in the industry.
  • the cartridge disclosed in the patent CN211020987U adopts a ceramic atomizing core.
  • the ceramic atomizing core is generally divided into a liquid absorbing surface and an atomizing surface. There are also some disadvantages.
  • the porous ceramics are relatively brittle and easily broken, requiring thicker strength support, and the heating wire is printed on the bottom surface of the porous ceramics.
  • the rupture of the heating wire forms an open circuit, which affects the atomization of e-liquid;
  • porous ceramics are generally fired with clay. After the e-liquid is atomized through the porous ceramic, it is easy to carry a muddy smell, and the reduction degree of e-liquid is not as good as that of cotton wick.
  • the atomizing core uses a porous ceramic substrate as a liquid seepage device.
  • the atomizing liquid penetrates through the porous ceramic substrate.
  • the atomizing liquid is atomized into smoke.
  • the outside of the porous ceramic base needs to be wrapped with materials such as sealing silica gel to prevent oil leakage, but there is still oil leakage in actual use.
  • the porous ceramic matrix is easily deformed during use, and the outer periphery has micropores connected, resulting in poor sealing and serious oil leakage.
  • an atomizing core which includes a porous body, an insulating and heat-conducting layer arranged on the surface of the porous body, and a heating element arranged on the outer surface of the insulating and heat-conducting layer
  • the porous body is Porous metal material
  • the porous body includes a first surface in contact with the atomized liquid and a second surface opposite to the first surface, the first surface is a liquid-absorbing surface, and the insulating and heat-conducting layer is provided on the On the second surface, the atomized liquid penetrates from the liquid absorbing surface to the second surface, the heating element on the second surface is heated, and the heat is conducted to the porous body through the insulating and heat-conducting layer to make the mist Liquid atomization.
  • an atomizing core which includes a casing provided with a receiving cavity that penetrates up and down, a porous body wrapped in the receiving cavity of the casing, and a heating element disposed on the bottom surface of the porous body.
  • the porous body includes a first surface in contact with the atomized liquid and a second surface opposite to the first surface, the first surface is the liquid absorption surface, and the second surface is the atomization surface, so
  • the heating element is arranged on the atomizing surface, the atomized liquid penetrates from the liquid absorbing surface to the atomizing surface, the heating element on the atomizing surface is heated, and the heat is conducted to the porous body to displace the The atomizing liquid is atomized, and the porous body is a porous metal.
  • the present application also provides a pod, including a pod tube provided with a flue pipe and a liquid storage cavity, a sealing body installed in the pod tube and sealing the liquid storage cavity, and a pod tube.
  • the atomizing core arranged in the closed body and the base fixed with the cartridge tube to limit the closed body, the atomizing core includes a porous body, an insulating and heat-conducting layer arranged on the surface of the porous body, and a The heating element on the outer surface of the insulating and heat-conducting layer, the porous body is a porous metal material, and the porous body includes a first surface facing and communicating with the liquid storage cavity and a second surface opposite to the first surface.
  • the first surface is the liquid-absorbing surface
  • the insulating and heat-conducting layer is arranged on the second surface
  • the atomized liquid penetrates from the liquid-absorbing surface to the second surface
  • the heat generated on the second surface The element is heated, and the heat is conducted into the porous body through the insulating and heat-conducting layer to atomize the atomizing liquid.
  • the atomizing core of the present application adopts a metal porous body as the supporting and force-bearing body, and an insulating and heat-conducting layer is arranged on the surface of the porous body to form the heating element.
  • the atomized liquid is atomized in the porous body to generate mist, which solves the technical problem that the traditional brittle porous ceramic is easily broken as the supporting force. It is polluted, which solves the problem that the traditional porous ceramic is prone to earthy smell after seepage.
  • the atomizing core of the present application is provided with a casing, and the casing is filled with a porous body slurry and a resistance material, and then the porous body and the heating element are formed by sintering at one time, thereby reducing the number of sintering times and reducing the manufacturing cost;
  • the outer casing is seamlessly wrapped around the outer peripheral surface of the porous body, so that the peripheral surface of the porous body cannot seep liquid, thereby reducing the risk of oil leakage. Support is provided by the housing, avoiding the problem of fragility of the ceramic body.
  • Fig. 1 is the perspective view of the first embodiment of the application atomizing core
  • Fig. 2 is the perspective view of another angle of the atomizing core of the first embodiment of the application
  • Example 3 is a perspective exploded view of an atomizing core in Example 1 of the application.
  • Fig. 4 is a sectional view along the dotted line A-A shown in Fig. 1;
  • FIG. 5 is a cross-sectional view of a cartridge according to an embodiment of the present application.
  • FIG. 6 is a partial enlarged view of the dotted circle shown in FIG. 5 .
  • Fig. 7 is the perspective view of the second atomizing core of the second embodiment of the application.
  • FIG. 8 is a perspective view of another angle of the second atomizing core of the second embodiment of the present application.
  • FIG. 9 is an exploded perspective view of the second atomizing core of the second embodiment of the present application.
  • Figure 10 is a sectional view along the dotted line A-A shown in Figure 7;
  • FIG. 11 is a cross-sectional view of another embodiment of the atomizing core of FIG. 10;
  • FIG. 12 is a cross-sectional view of a second pod of the present application.
  • Fig. 13 is a partial enlarged view of the dotted circle shown in Fig. 12;
  • FIG. 14 is a partial enlarged view of another embodiment of the dotted circle shown in FIG. 12 .
  • the atomizing core 40 of the present application includes a porous body 41 , an insulating and thermally conductive layer 42 coated on one surface of the porous body 41 , and a heat generating layer 42 adhered to the surface of the insulating and thermally conductive layer 42 . element 43.
  • the porous body 41 is made of a metal material. Metal powder is mixed with an organic material to form a mixed body and then sintered. The organic material is removed by ablation to form micropores.
  • the pore size of the micropores ranges from 15 to 22um. The range is between 50%-60%.
  • the pore size of the porous body 41 made of metal material ranges from 18 to 20 ⁇ m, and the porosity ranges from 54% to 55%.
  • the pore size of the porous body 41 made of metal material ranges from 18 to 20 um, and the porosity ranges from 54.87% to 55.05%.
  • the porous body 41 includes a liquid absorbing surface 413 contacting the atomized liquid and an atomizing surface 414 opposite to the liquid absorbing surface 413 .
  • An upper groove 412 is formed in the middle of the liquid absorbing surface 413.
  • the bottom surface and the side surface of the upper groove 412 are both part of the liquid absorbing surface.
  • a side wall 415 is formed on the outer periphery of the upper groove 412. The arrangement of 412 can reduce the penetration distance of the atomized liquid, and the protruding side wall 415 can provide better support strength or increase the storage of e-liquid.
  • a lower groove 411 is formed on the atomized surface 414 of the porous body 41, and the insulating and heat-conducting layer 42 is arranged in the lower groove 411.
  • the outer periphery of 41 constitutes the atomizing surface 414 .
  • the lower surface of the insulating and heat-conducting layer 42 is flush with the bottom surface of the edge of the porous body 41 .
  • the insulating and heat-conducting layer 42 may be a porous ceramic structure, which has the characteristics of insulating, conducting heat and adsorbing the atomized liquid.
  • the pore size and porosity of the insulating and heat-conducting layer 42 are set with reference to the porous body 41 .
  • the insulating and heat-conducting layer 42 can also be made of other materials with insulating, heat-conducting properties and adsorption of the atomized liquid.
  • the lower groove 411 protects the insulating and heat-conducting layer 42, so that the thinner insulating and heat-conducting layer 42 does not need to be subjected to force and will not be broken.
  • the heating element 43 is arranged on the outer surface of the insulating and heat-conducting layer 42 , and the heating element 43 includes an arc-shaped base 431 surrounding the outer surface of the insulating and heat-conducting layer 42 , and two free ends from the arc-shaped base 431 .
  • a peripheral base 434 formed by reverse bending and extending along the periphery of the arc-shaped base 431 and contact portions 435 formed on the free ends of the two peripheral bases 434 .
  • a folded portion 433 is formed at the joint of the arc-shaped base 431 and the peripheral base 434 , and an open end 432 is formed between a pair of the folded portions 433 , and the open end 432 is a part of the arc-shaped base 431 . In the opening direction, the opening end 432 corresponds to a pair of the contact parts 435 .
  • the porous body 41 is first sintered and formed by using alloy powder mixed with organic materials, and then the lower groove 411 of the porous body 41 is filled with ceramic slurry, and then the ceramic slurry is added.
  • the heating element 43 is screen-printed on the material, and finally, the atomizing core 40 is formed by sintering and molding again.
  • the alloy powder is mixed with organic materials to form first, and then the lower groove 411 of the formed body is filled with ceramic slurry, and then the porous body 41 is sintered and formed once. and insulating thermally conductive layer 42 . Finally, the heating element is screen printed at 43 and sintered to form.
  • the ceramic slurry is a mixture of ceramic powder and the organic material, and the heating element is screen-printed on the ceramic slurry through a material powder with a certain resistance value, and finally sintered to form.
  • the atomizing core 40 of the present application uses a metal porous body 41 as a supporting force-bearing body, and an insulating and heat-conducting layer 42 is provided on the surface of the porous body 41 to form the heating element 43, and the heating element 43 generates heat to pass the heat through the insulating
  • the thermal conductive layer 42 conducts the atomization liquid into the porous body 41 to generate mist, which solves the technical problem that the traditional brittle porous ceramics is easily broken as the supporting force body.
  • the liquid conduction infiltration process is more pure, and it is not easy to be polluted, which solves the problem that the traditional porous ceramic is prone to earthy smell after liquid infiltration.
  • the atomizing core 40 of the present application is used for the implementation of the cartridge.
  • the cartridge of the present application includes the cartridge tube 10 provided with the flue tube 13 and the liquid storage chamber 12, and the cartridge tube 10 is installed in the cartridge.
  • the cartridge tube 10 includes a tube body 11 , a liquid storage chamber 12 located in the tube body 11 , and a flue pipe 13 disposed in the tube body 11 and penetrating up and down.
  • the flue pipe 13 extends from the top of the pipe body 11 into the liquid storage chamber 12 , and the flue pipe 13 includes a smoke hole 131 penetrating up and down and an insertion head formed at the bottom of the flue pipe 13 . 132.
  • the outer diameter of the insertion head 132 is smaller than the outer diameter of the flue pipe 13 .
  • the flue pipe 13 is located in the middle of the liquid storage chamber 12 ; in one embodiment, the flue pipe 13 may also be arranged on one side or both sides of the liquid storage chamber 12 .
  • the closure body 20 includes a closure bracket 21 and a sealing member 22 wrapped around the surface of the closure bracket 21 .
  • the closed bracket 21 includes an air passage 212 connected with the insertion head 132 of the flue pipe 13 , an oil passage 211 formed outside the air passage 212 and isolated from the air passage 212 , and an oil passage 211 located in the oil passage 212 .
  • the lower part of the channel 211 is used for fixing the accommodating cavity 213 for accommodating the atomizing core 40 .
  • the sealing member 22 wraps at least the surfaces of the oil passage 211 , the air passage 212 , and the accommodating cavity 213 , and at least partially wraps the outer surface of the closed bracket 21 , so that the chimney tube 13 of the pod tube 10 can be inserted into
  • the sealing member 22 is clamped between the head 132 and the air passage 212 to achieve sealing, and the sealing member 22 is clamped between the inner wall surface of the cartridge tube 10 and the sealing bracket 21 to achieve sealing, and the atomizing core
  • the sealing member 22 is sandwiched between the outer surface of 40 and the inner wall surface of the accommodating cavity 213 to achieve sealing.
  • the closing body 20 is inserted into the cavity of the cartridge tube 10 from the lower side and closes the liquid storage cavity 12 , the oil passage of the closing body 20 is communicated with the liquid storage cavity 12 , and the base 30 is at least partially The closing body 20 is fixed by snapping into the cavity of the cartridge tube 10 .
  • the base 30 includes an insulating base 31 , a connecting conductor 32 disposed in the insulating base 31 and pressing upward against the contact portion 435 , an air inlet 33 located under the atomizing core 40 , and a connecting conductor 32 .
  • the atomizing cavity 34 between the air inlet 33 and the lower surface of the atomizing core 40 .
  • the atomized liquid of the cartridge in this embodiment flows from the liquid storage chamber 12 into the liquid absorption surface 413 of the atomizing core 40, the atomizing liquid penetrates into the atomizing surface 414 of the atomizing core 40, and the heating element 43 is powered and heated , conducted into the porous body 41 through the insulating and heat-conducting layer 42 and atomized the atomized liquid in it to generate mist.
  • the mist is conducted into the air passage 213 through the atomization cavity 34 and then passed along the flue pipe 13. suck out.
  • the atomizing core 40 of the present application includes a porous body 41 and an insulating and thermally conductive layer coated on one surface of the porous body 41 . 42.
  • the heating element 43 adhered to the surface of the insulating and heat-conducting layer 42 and the casing 45 wrapped around the outer periphery of the porous body 41 .
  • the difference of the second embodiment is that the outer casing 45 is added.
  • the casing 45 is a seamless stretched part, which includes a seamless casing 451 and a receiving cavity 452 penetrating the casing 451 .
  • the casing 45 is preferably formed by drawing a stainless steel sheet, and is connected with a material strip structure. The connection of the material tape can be at the end edge of the casing 451 .
  • the outer shell 45 can also be made of other materials. It is required that the outer shell material 45 has high temperature resistance, and the porous body 41 and the heating element 43 will not be melted and deformed during sintering.
  • the material is automatically pulled through the connection of the material tape of the casing 45, and the side of the receiving cavity 452 of the casing 45 is closed by a jig, and the porous body slurry is first filled into the receiving cavity 452, and then Then, the porous ceramic slurry is filled on the surface of the porous body slurry, the resistance material is printed on the surface of the porous body slurry, and finally sintered and molded to form the metal porous body 41, the insulating and thermally conductive layer 42 and the Heating element 43 .
  • the slurry realizes one-time sintering and molding, which reduces the number of sintering and molding times and reduces the manufacturing cost.
  • the porous body slurry is formed by sintering alloy powder mixed with organic materials to form the porous body 41.
  • the lower side of the porous body 41 is closed by a jig, and the upper side is filled and then the lower groove 411 is pressed out by the jig. , the porous ceramic slurry is uniformly filled in the lower groove 411, and the heating element 43 can make the resistance powder material printed on the surface of the ceramic slurry.
  • the ceramic slurry is a mixture of ceramic powder and organic material, and the organic material is removed by ablation during sintering to form the insulating and heat-conducting layer 42 .
  • the porous body 41 can also be sintered and molded and then loaded into the outer shell 45.
  • the outer shell 45 can be made into a tapered structure, or the bottom edge can be punched to form an inward fold. edge structure.
  • the upper groove 412 of the porous body 41 can be omitted, and the surface of the porous body 41 facing the atomized liquid has a plane or irregular surface structure, and the The height of the casing 45 is greater than the height of the porous body 41, and the upper part is fixedly supported by the upper edge of the casing 54, reducing the thickness of the porous body 41, thereby reducing the transmission distance of the atomized liquid, making the atomization Better results.
  • the atomizing core 40 is formed by stamping a casing 45 first, and then filling the casing 45 with porous body slurry, insulating and heat-conducting layer slurry and resistance material in sequence, and then sintering and forming the porous body 41, insulating and heat-conducting layer at one time.
  • the layer 42 and the heating element 43 reduce the number of sintering and reduce the manufacturing cost; and the outer casing 45 is seamlessly wrapped around the outer peripheral surface of the porous body 41, so that the outer peripheral surface of the porous body 41 cannot seep liquid, reducing the Risk of oil spills.
  • the atomizing core 40 of this embodiment is used for the implementation of the cartridge.
  • the cartridge of this embodiment includes the cartridge tube 10 provided with the flue tube 13 and the liquid storage cavity 12 , The enclosure 20 installed in the cartridge tube 10 and closing the liquid storage chamber 12 , the atomizing core 40 installed in the enclosure, and the base 30 fixed with the cartridge tube 10 .
  • the cartridge tube 10 includes a tube body 11 , a liquid storage chamber 12 located in the tube body 11 , and a flue pipe 13 disposed in the tube body 11 and penetrating up and down.
  • the flue pipe 13 extends from the top of the pipe body 11 into the liquid storage chamber 12 , and the flue pipe 13 includes a smoke hole 131 penetrating up and down and an insertion head formed at the bottom of the flue pipe 13 . 132.
  • the outer diameter of the insertion head 132 is smaller than the outer diameter of the flue pipe 13 .
  • the flue pipe 13 is located in the middle of the liquid storage chamber 12 ; in one embodiment, the flue pipe 13 may also be arranged on one side or both sides of the liquid storage chamber 12 .
  • the closure body 20 includes a closure bracket 21 and a sealing member 22 wrapped around the surface of the closure bracket 21 .
  • the closed bracket 21 includes an air passage 212 connected with the insertion head 132 of the flue pipe 13 , an oil passage 211 formed outside the air passage 212 and isolated from the air passage 212 , and an oil passage 211 located in the oil passage 212 .
  • the lower part of the channel 211 is used for fixing the accommodating cavity 213 for accommodating the atomizing core 40 .
  • the sealing member 22 wraps at least the surfaces of the oil passage 211 , the air passage 212 , and the accommodating cavity 213 , and at least partially wraps the outer surface of the closed bracket 21 , so that the chimney tube 13 of the pod tube 10 can be inserted into
  • the sealing member 22 is clamped between the head 132 and the air passage 212 to achieve sealing, and the sealing member 22 is clamped between the inner wall surface of the cartridge tube 10 and the sealing bracket 21 to achieve sealing, and the atomizing core
  • the sealing member 22 is sandwiched between the outer surface of the outer shell 45 of the outer shell 40 and the inner wall surface of the accommodating cavity 213 to achieve sealing.
  • the shell 451 of the outer shell 45 is punched outward to form several annular continuous convex hulls 453 , a better sealing effect is achieved through the extrusion of the convex hull 453 and the inner wall surface of the accommodating cavity 213 .
  • the closing body 20 is inserted into the cavity of the cartridge tube 10 from the lower side and closes the liquid storage cavity 12 , the oil passage of the closing body 20 is communicated with the liquid storage cavity 12 , and the base 30 is at least partially The closing body 20 is fixed by snapping into the cavity of the cartridge tube 10 .
  • the base 30 includes an insulating base 31 , a connecting conductor 32 disposed in the insulating base 31 and pressing upward against the contact portion 435 , an air inlet 33 located under the atomizing core 40 , and a connecting conductor 32 .
  • the atomizing cavity 34 between the air inlet 33 and the lower surface of the atomizing core 40 .
  • the atomized liquid of the cartridge in this embodiment flows from the liquid storage chamber 12 into the liquid absorption surface 413 of the atomizing core 40, the atomizing liquid penetrates into the atomizing surface 414 of the atomizing core 40, and the heating element 43 is powered and heated , conducted into the porous body 41 through the insulating and heat-conducting layer 42 and atomized the atomized liquid in it to generate mist.
  • the mist is conducted into the air passage 213 through the atomization cavity 34 and then passed along the flue pipe 13. suck out.
  • the outer surface of the housing 45 at least partially clamps the sealing member with the inner wall surface of the accommodating cavity 213 to achieve sealing, and will not cause serious oil leakage due to the deformation of the porous body 41 .
  • the housing 45 has sufficient support strength, and is connected with a plurality of material strips, which can be assembled by automated assembly during assembly.

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Abstract

一种雾化芯(40)及具有雾化芯(40)的烟弹。雾化芯(40)包括多孔体(41)、设于多孔体(41)表面的绝缘导热层(42)及设于绝缘导热层(42)外表面的发热元件(43)，多孔体(41)为多孔金属材料，多孔体(41)包括与雾化液接触的第一表面及与第一表面相对的第二表面，第一表面为吸液面(413)，绝缘导热层(42)设于第二表面上，雾化液从吸液面(413)渗透至第二表面，第二表面上的发热元件(43)加热，热量通过绝缘导热层(42)传导至多孔体(41)内将雾化液雾化。

Description

雾化芯及烟弹 技术领域
本申请涉及电子烟领域，尤指一种雾化芯及烟弹。
背景技术
烟油雾化型电子烟的关键部件在于雾化器，雾化器需要一个渗透烟油的雾化芯，雾化芯最初采用有机棉材质，但是有机棉容易出现烧焦的问题，并产生异味而影响使用。为解决上述技术问题，业界又出现了采用陶瓷多孔体作为雾化芯的技术方案，陶瓷雾化芯不会产生烧焦的问题，同时过滤性能相较于棉芯更为稳定。如CN211020987U号专利揭示的烟弹即采用了陶瓷雾化芯，陶瓷雾化芯一般分为吸液面与雾化面，烟油通过吸液面渗透至雾化面进行加热雾化，但是多孔陶瓷同样存在一些缺点，首先是多孔陶瓷比较脆，容易碎裂，需要较厚的强度支撑，且所述发热丝印刷在所述多孔陶瓷的底面，所述多孔陶瓷承受支撑力，容易碎裂，造成发热丝断裂形成断路，影响烟油雾化；其次是多孔陶瓷一般采用粘土烧制，烟油经由所述多孔陶瓷雾化后，容易携带一种泥味，烟油还原度不如棉芯好。
同时，烟弹产品一直存在一个技术问题难以解决，即漏油的问题，一般雾化芯是采用多孔陶瓷基材作为渗液装置，雾化液通过多孔陶瓷基体渗透，加热后多孔陶瓷基体内的雾化液雾化呈烟雾。多孔陶瓷基体外部需要用密封硅胶等材质进行包裹以防止漏油，但在实际使用中仍存在漏油现象，同时还需要开设连通储液腔内的平衡气道以保证储液腔内的气压平衡。而多孔陶瓷基体在使用过程中容易变形，外周均有微孔连通，造成密封不严，形成较为严重的漏油情况。
发明内容
鉴于此，有必要提供一种无异味、结构强度较好且不容造成烧焦问题的雾化芯及烟弹。
为解决上述技术问题，本申请提供了一种雾化芯，包括多孔体、设于所述多孔体表面的绝缘导热层及设于所述绝缘导热层外表面的发热元件，所述多孔体为多孔金属材料，所述多孔体包括与雾化液接触的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述绝缘导热层设于所述第二表面上，雾化液从所述吸液面渗透至所述第二表面，所述第二表面上的发热元件加热，热量通过所述绝缘导热层传导至所述多孔体内将所述雾化液雾化。
为解决上述技术问题，本申请还提供了一种雾化芯，包括设有上下贯通的收容腔的外壳、包裹于所述外壳的收容腔内的多孔体及设于所述多孔体底面的发热元件，所述多孔体包括与雾化液接触的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述第二表面为雾化面，所述发热元件设于所述雾化面上，雾化液从所述吸液面渗透至所述雾化面，所述雾化面上的发热元件加热，热量传导至所述多孔体内将所述雾化液雾化，所述多孔体为多孔金属。
为解决上述技术问题，本申请还提供了一种烟弹，包括设有烟道管与储液腔的烟弹管、装入所述烟弹管内且封闭所述储液腔的封闭体、装设于所述封闭体内的雾化芯及与所述烟弹管固持以限位所述封闭体的底座，所述雾化芯包括多孔体、设于所述多孔体表面的绝缘导热层及设于所述绝缘导热层外表面的发热元件，所述多孔体为多孔金属材料，所述多孔体包括朝向且连通所述储液腔的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述绝缘导热层设于所述第二表面上，雾化液从所述吸液面渗透至所述第二表面，所述第二表面上的发热元件加热，热量通过所述绝缘导热层传导至所述多孔体内将所述雾化液雾化。
本申请雾化芯采用金属材质的多孔体作为支撑受力主体，在多孔体表面设置绝缘导热层来形成所述发热元件，通过所述发热元件发热将热量通过所述绝缘导热层传导至所述多孔体内将雾化液雾化产生雾气，解决了传统脆性多孔陶 瓷作为支撑受力主体容易碎裂的技术问题，同时金属材质作为雾化液渗透主体，雾化液传导渗透过程中更纯净，不易被污染，解决了传统多孔陶瓷渗液后容易产生土味的问题。
本申请雾化芯通过设置外壳，再在所述外壳内填充多孔体浆料及电阻材料，随后一次烧结成型所述多孔体、及发热元件，减少了烧结的次数，降低了制造成本；且所述外壳无缝隙包裹于所述多孔体的外周面，使所述多孔体外周面无法渗液，降低了漏油的风险。通过所述外壳来提供支撑，避免陶瓷体易碎的问题。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
图1至图6为本申请实施例一雾化芯及烟弹的附图：
图1为本申请实施例一雾化芯的立体图；
图2为本申请实施例一雾化芯另一角度的立体图；
图3为本申请实施例一雾化芯的立体分解图；
图4为沿图1所示A-A虚线的剖视图；
图5为本申请实施例一烟弹的剖面图；
图6为图5所示虚线圈的局部放大图。
图7至图14为本申请实施例二雾化芯及烟弹的附图：
图7为本申请实施例二雾化芯的立体图；
图8为本申请实施例二雾化芯另一角度的立体图；
图9为本申请实施例二雾化芯的立体分解图；
图10为沿图7所示A-A虚线的剖视图；
图11为图10雾化芯又一实施例的剖视图；
图12为本申请实施例二烟弹的剖面图；
图13为图12所示虚线圈的局部放大图；
图14为图12所示虚线圈的又一实施例的局部放大图。
附图标记说明
烟弹管-10；管体-11；储液腔-12；烟道管-13；管腔-131；插入头部-132；封闭体-20；封闭支架-21；油道-211；气道-212；密封件-22；底座-30；绝缘基座-31；连接导体-32；进气口-33；雾化腔-34；雾化芯-40；多孔体-41；下凹槽-411；上凹槽-412；吸液面-413；雾化面-414；边壁-415；绝缘导热层-42；发热元件-43；弧形基体-431；开口端-432；反折部-433；外围基体-434；触点部-435；外壳-45；壳体-451；收容腔-452；凸包-453。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。
请参阅图1至图4所示，本申请雾化芯40包括多孔体41、涂覆于所述多孔体41一侧表面的绝缘导热层42及粘附于所述绝缘导热层42表面的发热元件43。
所述多孔体41为金属材质，采用金属粉末与有机料混合形成混合体后烧结，有机料被烧蚀去除并形成微孔，所述微孔的孔径范围介于15-22um之间，孔隙率范围在50％-60％之间。
在一实施例中，所述金属材质的多孔体41的微孔孔径范围介于18-20um之间，孔隙率介于54％-55％之间。
在一实施例中，所述金属材质的多孔体41的微孔孔径范围介于18-20um之间，孔隙率介于54.87％-55.05％之间。
所述多孔体41包括接触雾化液的吸液面413及与所述吸液面413相对的雾化面414。所述吸液面413中间开设有上凹槽412，所述上凹槽412的底面与侧面均作为吸液面的一部分，所述上凹槽412外周形成有边壁415，所述上凹槽412的设置可以降低雾化液渗透的距离，而所述凸出的边壁415可以提供较好的 支撑强度或增加烟油的储量。
所述多孔体41的雾化面414凹陷形成有下凹槽411，所述绝缘导热层42设于所述下凹槽411内，所述绝缘导热层42的下表面和/或所述多孔体41的外周缘构成所述雾化面414。所述绝缘导热层42的下表面与所述多孔体41的边缘底面平齐。
所述绝缘导热层42可以是多孔陶瓷结构，其具备绝缘、导热及吸附雾化液的特征。所述绝缘导热层42的孔径与孔隙率参照所述多孔体41设置。
所述绝缘导热层42也可以是其他具备绝缘、导热及吸附雾化液的材质。所述下凹槽411对所述绝缘导热层42进行保护，使较薄的绝缘导热层42无需受力而不会造成碎裂。
所述发热元件43设于所述绝缘导热层42的外表面，所述发热元件43包括环绕于所述绝缘导热层42外表面的弧形基体431、自所述弧形基体431两个自由端反向折弯并沿所述弧形基体431外围延伸形成的外围基体434及形成于两个所述外围基体434自由端的触点部435。所述弧形基体431与所述外围基体434结合处形成有反折部433，一对所述反折部433之间形成有开口端432，所述开口端432是所述弧形基体431的开口方向，所述开口端432对应一对所述触点部435。
所述雾化芯40在制造时，先利用合金粉末混合有机料烧结成型所述多孔体41，再在所述多孔体41的下凹槽411内填充陶瓷浆料，随后再在所述陶瓷浆料上丝印所述发热元件43，最后，再次烧结成型形成所述雾化芯40。
在一实施例中，所述雾化芯40制造时，先利用合金粉末混合有机料成型，再在所述成型体的下凹槽411内填充陶瓷浆料，随后一次烧结成型所述多孔体41与绝缘导热层42。最后丝印所述发热原价43并烧结成型。
所述陶瓷浆料是陶瓷粉体与所述有机料的混合体，所述发热元件是通过具有一定阻值的材料粉末丝印于所述陶瓷浆料上，最后烧结成型。
本申请雾化芯40采用金属材质的多孔体41作为支撑受力主体，在多孔体41表面设置绝缘导热层42来形成所述发热元件43，通过所述发热元件43发热 将热量通过所述绝缘导热层42传导至所述多孔体41内将雾化液雾化产生雾气，解决了传统脆性多孔陶瓷作为支撑受力主体容易碎裂的技术问题，同时金属材质作为雾化液渗透主体，雾化液传导渗透过程中更纯净，不易被污染，解决了传统多孔陶瓷渗液后容易产生土味的问题。
请继续参阅图5、图6所示，本申请的雾化芯40用于烟弹的实施情况，本申请烟弹包括设有烟道管13与储液腔12的烟弹管10、装入所述烟弹管10内且封闭所述储液腔12的封闭体20、装设于所述封闭体内的雾化芯40及与所述烟弹管10固持的底座30。
所述烟弹管10包括管体11、位于所述管体11内的储液腔12及设于所述管体11且上下贯通的烟道管13。所述烟道管13自所述管体11顶部延伸入所述储液腔12内，所述烟道管13包括上下贯通的烟孔131及形成于所述烟道管13底部的插入头部132。所述插入头部132的外径小于所述烟道管13的外径。优选地，所述烟道管13位于所述储液腔12中间；在一实施例中，所述烟道13还可以设置在所述储液腔12的一侧或两侧。
所述封闭体20包括封闭支架21及包裹于所述封闭支架21表面的密封件22。所述封闭支架21包括与所述烟道管13的插入头部132衔接的气道212、形成于所述气道212外侧并与所述气道212相互隔离的油道211及位于所述油道211下方用于固定容纳所述雾化芯40的容纳腔213。所述密封件22至少包裹所述油道211、气道212、容纳腔213的表面，同时至少包裹部分所述封闭支架21的外表面，使所述烟弹管10的烟道管13的插入头部132与所述气道212之间夹持密封件22实现密封，所述烟弹管10内壁面与所述密封支架21之间夹持所述密封件22实现密封，所述雾化芯40的外表面与所述容纳腔213的内壁面之间夹持所述密封件22实现密封。
所述封闭体20从下侧插入所述烟弹管10的腔体内并封闭所述储液腔12，所述封闭体20的油道与所述储液腔12连通，所述底座30至少部分扣入所述烟弹管10的腔体内将所述封闭体20固定。所述底座30包括绝缘基座31、设于所述绝缘基座31内且向上抵持于所述触点部435的连接导体32、位于所述雾化芯 40下方的进气口33及形成于所述进气口33与所述雾化芯40下表面之间的雾化腔34。
本实施例烟弹的雾化液从储液腔12内流入所述雾化芯40的吸液面413上，雾化液渗透至所述雾化芯40雾化面414，发热元件43供电加热，通过绝缘导热层42传导至所述多孔体41内并将其内的雾化液雾化产生雾气，雾气通过雾化腔34传导至所述气道213内后顺所述烟道管13被吸出。
实施例二
图7至图14为实施例二的说明书附图，请参阅图7至图11所示，本申请雾化芯40包括多孔体41、涂覆于所述多孔体41一侧表面的绝缘导热层42、粘附于所述绝缘导热层42表面的发热元件43及包裹于所述多孔体41外周的外壳45。相较于实施例一，实施例二的区别在于增加所述外壳45。
所述外壳45为无缝拉伸部件，其包括无缝壳体451及贯通所述壳体451的收容腔452。所述外壳45优选采用不锈钢薄片拉伸成型，并连接有料带结构。料带的连接可以在所述壳体451端缘。所述外壳45也可以采用其他材质，需要该外壳材质45具备耐高温，在烧结所述多孔体41与发热元件43不会造成熔化变形即可。
在制造时，通过所述外壳45的料带的连接自动化拉料，将所述外壳45的收容腔452一侧通过治具封闭，首先将多孔体浆料填充至所述收容腔452内，随后再将多孔陶瓷浆料填充在所述多孔体浆料表面，再将电阻材料印制在所述多孔体浆料表面，最后烧结成型分别形成所述金属材质的多孔体41、绝缘导热层42及发热元件43。实现全自动化生产，同时，所述浆料实现一次烧结成型，减少了烧结成型的次数，降低了制造成本。
所述多孔体浆料是利用合金粉末混合有机料烧结成型所述多孔体41，所述多孔体41下侧被治具封闭，上侧通过填充后再利用治具压出所述下凹槽411，所述多孔陶瓷浆料均匀填充在所述下凹槽411内，所述发热元件43可以使电阻粉末材料印制在所述陶瓷浆料表面上。
所述陶瓷浆料是陶瓷粉体与有机料的混合体，烧结时烧蚀去除所述有机料成型所述绝缘导热层42。
在一实施例中，所述多孔体41也可以是烧结成型后再装入所述外壳45内，此时，便于固定，所述外壳45可以做成锥形结构，或者底部边缘冲压形成内折边等结构。
请重点参阅图11所示，在一实施例中，所述多孔体41的上凹槽412可以省去，所述多孔体41朝向雾化液一侧表面呈平面或不规则面结构，而所述外壳45的高度大于所述多孔体41的高度，上侧部分通过所述外壳54上缘固定支撑，降低所述多孔体41的厚度，从而使雾化液的传道距离减小，使雾化效果更好。
本实施例雾化芯40通过先冲压成型一外壳45，再依次在所述外壳45内填充多孔体浆料、绝缘导热层浆料及电阻材料，随后一次烧结成型所述多孔体41、绝缘导热层42及发热元件43，减少了烧结的次数，降低了制造成本；且所述外壳45无缝隙包裹于所述多孔体41的外周面，使所述多孔体41外周面无法渗液，降低了漏油的风险。
请继续参阅图12、图13所示，本实施例的雾化芯40用于烟弹的实施情况，本实施例烟弹包括设有烟道管13与储液腔12的烟弹管10、装入所述烟弹管10内且封闭所述储液腔12的封闭体20、装设于所述封闭体内的雾化芯40及与所述烟弹管10固持的底座30。
所述烟弹管10包括管体11、位于所述管体11内的储液腔12及设于所述管体11且上下贯通的烟道管13。所述烟道管13自所述管体11顶部延伸入所述储液腔12内，所述烟道管13包括上下贯通的烟孔131及形成于所述烟道管13底部的插入头部132。所述插入头部132的外径小于所述烟道管13的外径。优选地，所述烟道管13位于所述储液腔12中间；在一实施例中，所述烟道13还可以设置在所述储液腔12的一侧或两侧。
所述封闭体20包括封闭支架21及包裹于所述封闭支架21表面的密封件22。所述封闭支架21包括与所述烟道管13的插入头部132衔接的气道212、形成于所述气道212外侧并与所述气道212相互隔离的油道211及位于所述油道211 下方用于固定容纳所述雾化芯40的容纳腔213。所述密封件22至少包裹所述油道211、气道212、容纳腔213的表面，同时至少包裹部分所述封闭支架21的外表面，使所述烟弹管10的烟道管13的插入头部132与所述气道212之间夹持密封件22实现密封，所述烟弹管10内壁面与所述密封支架21之间夹持所述密封件22实现密封，所述雾化芯40的外壳45的外表面与所述容纳腔213的内壁面之间夹持所述密封件22实现密封，优选地，所述外壳45的壳体451向外冲压形成若干环形连续的凸包453，通过所述凸包453与所述容纳腔213内壁面挤压实现更好的密封效果。
所述封闭体20从下侧插入所述烟弹管10的腔体内并封闭所述储液腔12，所述封闭体20的油道与所述储液腔12连通，所述底座30至少部分扣入所述烟弹管10的腔体内将所述封闭体20固定。所述底座30包括绝缘基座31、设于所述绝缘基座31内且向上抵持于所述触点部435的连接导体32、位于所述雾化芯40下方的进气口33及形成于所述进气口33与所述雾化芯40下表面之间的雾化腔34。
本实施例烟弹的雾化液从储液腔12内流入所述雾化芯40的吸液面413上，雾化液渗透至所述雾化芯40雾化面414，发热元件43供电加热，通过绝缘导热层42传导至所述多孔体41内并将其内的雾化液雾化产生雾气，雾气通过雾化腔34传导至所述气道213内后顺所述烟道管13被吸出。
所述外壳45的外表面至少部分与所述容纳腔213的内壁面夹持所述密封件实现密封，不会因为多孔体41变形而造成严重的漏油问题。所述外壳45的支撑强度足够，且连接有多个料带，在组装时可以通过自动化组装的方式组装。
还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理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权利要求范围之内。
以上实施例仅表达了本发明的优选的实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种雾化芯，其特征在于，包括多孔体、设于所述多孔体表面的绝缘导热层及设于所述绝缘导热层外表面的发热元件，所述多孔体为多孔金属材料，所述多孔体包括与雾化液接触的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述绝缘导热层设于所述第二表面上，雾化液从所述吸液面渗透至所述第二表面，所述第二表面上的发热元件加热，热量通过所述绝缘导热层传导至所述多孔体内将所述雾化液雾化。
  2. 如权利要求1所述的雾化芯，其特征在于，所述多孔体的第二表面上设有下凹槽，所述绝缘导热层设于所述下凹槽内。
  3. 如权利要求2所述的雾化芯，其特征在于，所述绝缘导热层为多孔陶瓷，所述多孔体为多孔金属，所述多孔体是通过金属粉末与有机料混合后烧结成型形成的，所述金属粉末内部的有机料被烧蚀去除形成微孔结构，所述多孔陶瓷是通过陶瓷粉末与有机料混合后填充至所述下凹槽内再次烧结成型，所述发热元件是通过将电阻材料丝印于所述多孔陶瓷表面上烧结成型的。
  4. 如权利要求2所述的雾化芯，其特征在于，所述绝缘导热层为多孔陶瓷，所述多孔体为多孔金属，所述多孔体是通过金属粉末与有机料混合后烧结成型形成的，所述金属粉末内部的有机料被烧蚀去除形成微孔结构，所述多孔陶瓷是通过陶瓷粉末与有机料混合后填充至所述下凹槽内，所述发热元件是通过将电阻材料设于所述陶瓷浆料表面上后再次烧结成型所述绝缘导热层与发热元件。
  5. 如权利要求2所述的雾化芯，其特征在于，所述绝缘导热层为多孔陶瓷，所述多孔体为多孔金属，所述多孔体是通过金属粉末与有机料混合后烧结成型形成的，所述金属粉末内部的有机料被烧蚀去除形成微孔结构，所述多孔陶瓷是通过陶瓷粉末与有机料混合后填充至所述下凹槽内，所述发热元件是将电阻丝部分嵌入所述陶瓷浆料内后再次烧结成型所述绝缘导热层与发热元件。
  6. 如权利要求2-5任一项所述的雾化芯，其特征在于，所述多孔体的第一表面上凹陷形成有上凹槽，所述上凹槽外周形成有边壁。
  7. 如权利要求1所述的雾化芯，其特征在于，所述多孔体内的微孔的孔径范围介于15-22um之间，孔隙率范围在50％-60％之间。
  8. 如权利要求7所述的雾化芯，其特征在于，所述多孔体内的微孔的孔径范围介于18-20um之间，孔隙率范围在54％-55％之间。
  9. 如权利要求7或8所述的雾化芯，其特征在于，所述绝缘导热层内为多孔陶瓷，所述绝缘导热层内部形成有微孔结构。
  10. 一种雾化芯，其特征在于，包括设有上下贯通的收容腔的外壳、包裹于所述外壳的收容腔内的多孔体及设于所述多孔体底面的发热元件，所述多孔体包括与雾化液接触的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述第二表面为雾化面，所述发热元件设于所述雾化面上，雾化液从所述吸液面渗透至所述雾化面，所述雾化面上的发热元件加热，热量传导至所述多孔体内将所述雾化液雾化，所述多孔体为多孔金属。
  11. 如权利要求10所述的雾化芯，其特征在于，所述外壳为刚性材料，所述雾化芯通过所述外壳承受固持支撑力以固定在雾化设备内。
  12. 如权利要求11所述的雾化芯，其特征在于，所述外壳采用不锈钢板材拉伸成型，包括无缝壳体及所述收容腔，所述壳体底侧边缘连接有料带，多孔体浆料、发热元件材料填充至所述收容腔内后烧结成型所述多孔体与发热元件。
  13. 如权利要求12所述的雾化芯，其特征在于，所述外壳的壳体高度大于所述多孔体的高度，使所述多孔体厚度减薄。
  14. 如权利要求10所述的雾化芯，其特征在于，所述雾化芯还包括设于所述多孔体第二表面上的绝缘导热层，所述发热元件设于所述绝缘导热层上，所述多孔体的第二表面上开设有下凹槽，所述绝缘导热层涂覆于所述下凹槽内，所述绝缘导热层为多孔陶瓷，所述多孔体是通过金属粉末与有机料混合后烧结成型形成的，所述金属粉末内部的有机料被烧蚀去除形成微孔结构，所述多孔陶瓷是通过陶瓷粉末与有机料混合后烧结去除有机料成型的。
  15. 一种烟弹，包括设有烟道管与储液腔的烟弹管、装入所述烟弹管内且封闭所述储液腔的封闭体、装设于所述封闭体内的雾化芯及与所述烟弹管固持以限位所述封闭体的底座，其特征在于，所述雾化芯包括多孔体、设于所述多孔体表面的绝缘导热层及设于所述绝缘导热层外表面的发热元件，所述多孔体为 多孔金属材料，所述多孔体包括朝向且连通所述储液腔的第一表面及与所述第一表面相对的第二表面，所述第一表面为吸液面，所述绝缘导热层设于所述第二表面上，雾化液从所述吸液面渗透至所述第二表面，所述第二表面上的发热元件加热，热量通过所述绝缘导热层传导至所述多孔体内将所述雾化液雾化。
  16. 如权利要求15所述的烟弹，其特征在于，所述雾化芯还包括设有上下贯通的收容腔的外壳，所述多孔体及其下的发热元件收容于所述收容腔内，所述雾化芯通过所述外壳支撑固定于所述封闭体内。
  17. 如权利要求16所述的烟弹，其特征在于，所述封闭体包括封闭支架及包裹于所述封闭支架表面的密封件，所述封闭支架包括与所述烟道管的插入头部衔接的气道、形成于所述气道外侧并与所述气道相互隔离的油道及位于所述油道下方用于固定容纳所述雾化芯的容纳腔，使所述烟道管的插入头部与所述气道之间夹持所述密封件，所述烟弹管内壁面与所述密封支架之间夹持所述密封件，所述雾化芯的外壳的外表面与所述容纳腔的内壁面之间夹持所述密封件。
  18. 如权利要求17所述的烟弹，其特征在于，所述封闭体从下侧插入所述烟弹管的腔体内并封闭所述储液腔，所述封闭体的油道与所述储液腔连通，所述底座至少部分扣入所述烟弹管的腔体内将所述封闭体固定，所述底座包括绝缘基座、设于所述绝缘基座内且向上抵持于所述触点部的连接导体、位于所述雾化芯下方的进气口及形成于所述进气口与所述雾化芯下表面之间的雾化腔。
PCT/CN2022/085577 2021-04-21 2022-04-07 雾化芯及烟弹 WO2022222760A1 (zh)

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