WO2023134710A1 - 一种雾化芯、雾化器及气溶胶生成装置 - Google Patents

一种雾化芯、雾化器及气溶胶生成装置 Download PDF

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Publication number
WO2023134710A1
WO2023134710A1 PCT/CN2023/071812 CN2023071812W WO2023134710A1 WO 2023134710 A1 WO2023134710 A1 WO 2023134710A1 CN 2023071812 W CN2023071812 W CN 2023071812W WO 2023134710 A1 WO2023134710 A1 WO 2023134710A1
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WO
WIPO (PCT)
Prior art keywords
core
liquid
liquid guide
support member
atomizing core
Prior art date
Application number
PCT/CN2023/071812
Other languages
English (en)
French (fr)
Inventor
汪亚桥
杨嘎玛
戴慧
Original Assignee
江门思摩尔新材料科技有限公司
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Publication of WO2023134710A1 publication Critical patent/WO2023134710A1/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
    • A24F40/42—Cartridges or containers for inhalable precursors

Definitions

  • the present application relates to the field of atomization technology, in particular to an atomization core, an atomizer and an aerosol generating device.
  • the atomizing core of the aerosol generating device is used to heat and atomize the aerosol generating substrate to generate an aerosol.
  • the aerosol is a colloidal dispersion system formed by dispersing and suspending small solid or liquid particles in a gas medium. It can be absorbed by the human body through the respiratory system, providing users with a new alternative absorption method.
  • the atomizing core is generally composed of two parts: a cotton core and a heating element. In the production process, the molding process of the cotton core and the molding process of the heating wire are carried out separately. After the production of the cotton core and heating wire is completed, the combined molding is carried out by winding the heating wire around cotton or wrapping the heating element with the cotton core.
  • the embodiment of the present application expects to provide an atomizing core, an atomizer and an aerosol generating device to improve the local high temperature caused by the process deviation of the turn spacing of the heating wire in the production process in the prior art, resulting in taste The problem of poor consistency.
  • an atomizing core including:
  • a support including a liquid guide channel and a liquid guide hole, the liquid guide channel runs through both ends of the support along the axial direction of the support, and the liquid guide hole runs through the support along the radial direction of the support the side walls of the fluid guide channel;
  • a liquid guiding core, the liquid guiding core is sheathed on the outer periphery of the support member, and the aerosol generating matrix in the liquid guiding channel can be guided to the liquid guiding core through the liquid guiding hole;
  • a heating net is arranged on the outer periphery of the liquid guide core, and the heating net is used to heat and atomize the aerosol generating substrate.
  • the heating net is a braided structure formed by weaving 4-64 strands of heating wire.
  • the diameter of the heating wire ranges from 0.01 mm to 0.5 mm.
  • the heating wire is made of iron-chromium-aluminum, nickel-chromium, titanium wire or nickel wire.
  • the liquid guide core is a cotton core.
  • the cotton core comprises 8-64 yarns.
  • the diameter of the yarn ranges from 0.05 mm to 2.0 mm.
  • the fineness of the yarn ranges from 10 to 60 counts.
  • the porosity of the cotton core is in the range of 0.45-0.99, and the permeability of the cotton core is in the range of 1 ⁇ 10 -11 m 2 -1 ⁇ 10 -9 m 2 .
  • the thickness of the liquid guiding core is in the range of 0.2mm-2mm.
  • the length of the support is in the range of 3mm-30mm.
  • the diameter of the liquid guide hole is smaller than the inner diameter of the support member and larger than the effective capillary diameter of the liquid guide core.
  • the support member has an inner diameter ranging from 0.5 mm to 2.0 mm.
  • the wall thickness of the support is in the range of 0.1mm-0.2mm.
  • the diameter of the liquid guide hole is in the range of 0.2mm-0.5mm.
  • the atomizing core includes two connection rings for electrical connection, and the two The connecting rings are sheathed on both ends of the support member respectively, and are electrically connected with the heating grid.
  • the two connecting rings are sleeved on the heating net.
  • the embodiment of the present application also provides an atomizer, which includes a housing and the above-mentioned atomizing core, the housing has a liquid storage chamber and a mist outlet channel inside, and the liquid storage chamber is used to store the aerosol generated The substrate, the mist outlet channel is used for aerosol to flow out of the atomizer, and the aerosol generating substrate can flow into the liquid guide channel through the liquid storage cavity.
  • the embodiment of the present application also provides an aerosol generating device, including a power supply assembly and the atomizer mentioned above, and the power supply assembly is electrically connected to the atomizer.
  • the atomizing core includes a support, a liquid guide core and a heating net
  • the support includes a liquid guide channel and a liquid guide hole
  • the liquid guide channel is along the The axial direction of the support member runs through both ends of the support member
  • the liquid guide hole runs through the side wall of the liquid guide channel along the radial direction of the support member
  • the aerosol-generating matrix in the liquid storage chamber of the atomizer can enter through at least one end of the support member
  • the liquid guide channel, the liquid guide core is sleeved on the outer periphery of the support, covering the outside of the liquid guide hole
  • the aerosol-generating matrix in the liquid guide channel can guide the liquid guide core through the liquid guide hole
  • the heating net is arranged on the liquid guide core
  • the outer periphery is used for heating and atomizing the aerosol-generating substrate to generate an aerosol for the user to inhale.
  • the continuous production of the heating net can be realized. It is conducive to the realization of automatic assembly, and can effectively improve the assembly efficiency of the atomizing core. At the same time, it can ensure that the heating network has better integrity and consistency, so that the temperature field distribution of the atomizing core can be more uniform, and the aerosol can be made It has a good taste, and the consistency of the taste is better, and the atomization area of the atomization core is also increased.
  • Fig. 1 is a schematic structural diagram of an atomizing core according to an embodiment of the present application, omitting the liquid guiding core;
  • Fig. 2 is a sectional view of Fig. 1;
  • Fig. 3 is a cross-sectional view of an atomizing core according to another embodiment of the present application.
  • Fig. 4 is a schematic structural diagram of a support member according to an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a heating net according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a connecting ring according to an embodiment of the present application.
  • the "axial" orientation or positional relationship is based on the orientation or positional relationship shown in FIG. None to imply that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the application.
  • the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
  • An embodiment of the present application provides an aerosol generating device, including an atomizer and a power supply assembly, and the power supply assembly is electrically connected to the atomizer.
  • the atomizer is used to store the liquid aerosol-generating substrate, and the atomized aerosol-generating substrate is heated under the electric energy of the power supply component to generate an aerosol for the user to take.
  • the aerosol-generating device is used to atomize the aerosol-generating substrate to generate an aerosol for inhalation by a user.
  • the aerosol-generating substrates include, but are not limited to, pharmaceuticals, nicotine-containing or nicotine-free materials, and the like.
  • the aerosol generating device includes a liquid storage chamber for storing the aerosol generating substrate, the aerosol generating substrate in the liquid storage chamber can flow to the atomizing core 10 of the atomizer, and the atomizing core 10 is used to heat the atomized aerosol generating substrate
  • the aerosol is generated, and the generated aerosol can flow out of the aerosol generating device through the mist outlet channel of the nebulizer for human use.
  • the aerosol generating device may be a medical atomization device or an air humidifier. It can also be an atomizing device such as an electronic cigarette.
  • the embodiment of the present application provides an atomizer, including a casing and an atomizing core 10 .
  • liquid storage chamber inside the casing, and the liquid storage chamber is used to store the aerosol generating substrate, and the aerosol generating substrate can flow into the liquid guide channel 11a of the support member 11 of the atomizing core 10 through the liquid storage chamber.
  • the inside of the housing has a liquid inlet channel and a mist outlet channel.
  • the mist outlet channel is used for the aerosol to flow out of the atomizer.
  • the aerosol generating substrate in the liquid storage chamber can flow into the liquid guide channel 11a through the liquid inlet channel. That is to say, the aerosol generating substrate in the liquid storage chamber of the atomizer can flow into the liquid guide channel 11a through the liquid inlet channel, and the heating net 13 heats and atomizes the aerosol generating substrate to form an aerosol, and the aerosol passes through the mist outlet
  • the channel flows out of the nebuliser for access by the user.
  • the specific way of using the atomizer is not limited here, for example, the user can inhale the aerosol through the casing, or inhale the aerosol through an additional suction nozzle in cooperation with the casing.
  • the specific shape of the shell is not limited here, and the shape of the shell includes but is not limited to a hollow cylinder, a hollow elliptical cylinder, or a polygon with rounded corners in cross section, such as a rounded triangle etc.
  • FIG. 1 to FIG. 5 which includes a support member 11 , a liquid guiding core 12 and a heating net 13 .
  • the support member 11 includes a liquid guide channel 11a and a liquid guide hole 11b, the liquid guide channel 11a runs through both ends of the support member 11 along the axial direction of the support member 11, and the liquid guide hole 11b runs through the liquid guide channel 11a along the radial direction of the support member 11. side wall.
  • the aerosol-generating matrix in the liquid storage cavity can enter the liquid guide channel 11a through at least one end of the support member 11, and the liquid guide core 12 is sleeved on the outer periphery of the support member 11, covering the outside of the liquid guide hole 11b, and the liquid guide channel 11a
  • the aerosol-generating substrate can be guided to the liquid-conducting core 12 through the liquid-guiding hole 11b, and the heating net 13 is arranged on the periphery of the liquid-guiding core 12, and the heating net 13 is used to heat and atomize the aerosol-generating substrate to generate aerosol for the user Snorting.
  • the aerosol-generating substrate in the liquid storage chamber can also be guided to the liquid guide core 12 without passing through the liquid guide channel 11a and the liquid guide hole 11b, but directly through the part extending into the liquid storage chamber or communicating with the liquid storage chamber.
  • the liquid guide core 12 carries out liquid suction.
  • one end of the liquid guiding channel 11a may communicate with the liquid storage chamber, or both ends may communicate with the liquid storage chamber.
  • the two ends of the liquid guide channel 11a are connected to the liquid storage chamber as an example for description. In this way, not only the amount of the aerosol-generating substrate entering the atomizing core 10 is increased, but also the aerosol-generating substrate can be passed through the liquid guide.
  • the channel 11a evenly guides the liquid guide core 12, thereby improving the atomization effect.
  • the braided Mesh (mesh) heating net 13 is made by a knitting machine and has good consistency and integrity.
  • the density and resistance of the heating net 13 can be controlled by adjusting the parameters and knitting speed of the knitting machine.
  • the weaving texture of the heating net 13 can be twill, "+” pattern or “herringbone” pattern, etc., which can be set according to actual needs.
  • the support member 11 listed in the embodiment of the present application can be a tubular member used to accommodate the aerosol-generating substrate.
  • the tubular member is similar to a cylinder, but it is not intended to limit the shape of the support member 11 in the embodiment of the present application to Similar to a cylindrical shape, the support member 11 in the embodiment of the present application may also be in other shapes such as a triangular prism or an elliptical cylinder.
  • the support member 11 is a hollow tube penetrating at both ends, the lumen of the hollow tube constitutes the fluid guiding channel 11a, and the fluid guiding hole 11b penetrates the hollow tube along the radial direction of the hollow tube. side wall of the tube.
  • liquid guide hole 11b is not limited here, including but not limited to circular hole, oval hole, elongated hole, square hole and the like.
  • the specific shape of the liquid guide channel 11a is not limited here, and the cross-sectional shape of the liquid guide channel 11a includes but is not limited to a circle, an ellipse, or a polygon with rounded corners, such as a triangle with rounded corners Etc.
  • the cross-sectional shape of the liquid guiding channel 11a is circular, which is conducive to the smooth flow of the aerosol-generating substrate in the liquid guiding channel 11a.
  • the cross-sectional shape of the liquid guiding channel 11 a refers to the cross-sectional shape of the liquid guiding channel 11 a cut along a plane perpendicular to the axial direction of the support member 11 .
  • the specific material of the support member 11 is not limited here, for example, the material of the support member 11 is stainless steel, dense ceramics, porous ceramics and the like. In this way, the structural strength of the support member 11 is ensured, thereby providing effective support for other components such as the liquid guide core 12 and the heating net 13 of the atomizing core 10 .
  • the support member 11 is made of glass, specifically any one of borosilicate glass, quartz glass or photosensitive lithium aluminosilicate glass.
  • the support member 11 is made of stainless steel.
  • Stainless steel has the advantages of high strength and good machinability.
  • a number of liquid guide holes are provided on the side wall of the support member 11 while ensuring the stability of the support member; specifically , the support can be made of SUS304 stainless steel, which also has the characteristics of low toxicity and high thermal conductivity, and is suitable for contacting with e-liquid in electronic atomization devices, with high safety performance and good fluidity of e-liquid.
  • the material of the support member 11 may also be ceramics, other metals, hard plastics and other components with certain mechanical strength.
  • the atomizing core generally consists of two parts: a cotton core and a heating element.
  • the forming process of the cotton core and the forming process of the heating wire are carried out separately.
  • the heating wire is wound around the cotton or the cotton core is wrapped around the heating wire to carry out combined molding.
  • the cotton core and heating wire winding need to be carried out separately during the production process. After the cotton core is formed, it needs to be cut and wound individually, and the heating wire is manually wound. The assembly consistency is poor and the efficiency is low.
  • the existing cotton core wrapped heating element has a good taste, but it adopts stamping or etching process.
  • a sheet-shaped single heating element is first obtained, and then manually crimped and wrapped inside the cotton core one by one.
  • the crimp wrapping process has low efficiency and poor consistency, the etching process used is costly, and the automated assembly process is complex.
  • the atomizing core 10 provided in the embodiment of the present application includes a support member 11, a liquid guide core 12, and a heating net 13.
  • the support member 11 includes a liquid guide channel 11a and a liquid guide hole 11b.
  • the liquid guide channel 11a is along the axial direction of the support member 11.
  • the liquid guide hole 11b penetrates the liquid guide along the radial direction of the support member 11
  • the side wall of the channel 11a, the aerosol-generating matrix in the liquid storage chamber of the atomizer can enter the liquid guide channel 11a through at least one end of the support member 11, and the liquid guide core 12 is sleeved on the outer periphery of the support member 11, covering the liquid guide
  • the aerosol-generating substrate in the liquid-guiding channel 11a can be guided to the liquid-guiding core 12 through the liquid-guiding hole 11b, and the heating net 13 is arranged on the outer periphery of the liquid-guiding core 12 for heating and atomizing the aerosol-generating substrate To generate aerosol for users to inhale.
  • the heating net in the atomizing core 10 of the embodiment of the present application, by setting a support 11 with a certain rigidity, and weaving the liquid-conducting core 12 on the outer periphery of the support 11 to form a heating net 13 in a mesh structure, the heating net can be realized.
  • the continuous production of 13 is conducive to the realization of automatic assembly, and can also effectively improve the assembly efficiency of the atomizing core 10.
  • it can ensure that the heating net 13 has better integrity and consistency, so that the temperature field of the atomizing core 10 can be improved.
  • the distribution is more uniform, so that the aerosol has a good taste, and the consistency of the taste is better, and the atomization area of the atomizing core 10 is also increased.
  • the atomizing core 10 provided in the embodiment of the present application includes a support member 11, a liquid guide core 12, and a heating net 13, and the heating net 13 in a mesh structure is formed by weaving on the liquid guide core 12 on the outer periphery of the support member 11 by weaving. It overcomes the problem of manual installation of the heating wire around the liquid guide core 12, and also overcomes the problems of high manufacturing cost and complicated automatic assembly of the liquid guide core 12 wrapping the heating element.
  • the heating net 13 is a braided structure formed by weaving 4-64 strands of heating wire. That is to say, 4-64 strands of heating wire are braided by a braiding machine to form a heating net 13, so that while ensuring that the heating net 13 has good integrity and consistency, it is also possible to adjust the parameters of the braiding machine and the knitting speed. Control the density and resistance of the heating net 13.
  • the temperature field distribution and atomization area of the atomizing core 10 can be controlled by controlling the number of heating wires, and the heating efficiency of the atomizing core 10 can also be controlled. That is to say, it is possible to adapt to different types and demands of aerosol generating devices by controlling the number of strands of the heating wire.
  • the diameter of the heating wire ranges from 0.01 mm to 0.5 mm.
  • the diameter of the heating wire is, for example, 0.01mm, 0.05mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.38mm, 0.4mm, 0.45mm or 0.5mm. It is understandable that if If the diameter of the heating wire is too small, the structural strength of the heating wire is low, and the heating wire is easy to break during the weaving process, and the structural strength of the heating mesh 13 formed by weaving is low, which reduces the service life of the atomizing core 10 .
  • the heating mesh 13 formed by weaving is likely to be too thick, which is not conducive to the circulation of the aerosol generating substrate and affects the atomization amount of the aerosol generating device.
  • the diameter of the heating wire By limiting the diameter of the heating wire to 0.01mm-0.5mm, it is possible to increase the atomization amount of the aerosol generating device while ensuring that the heating net 13 has a certain structural strength.
  • the heating efficiency of the atomizing core 10 can also be ensured.
  • the material of the heating wire is not limited here.
  • the material of the heating wire is metal or alloy such as iron-chromium-aluminum, nickel-chromium, titanium wire or nickel wire.
  • the liquid guiding core 12 is a cotton core, and the specific material of the cotton core is not limited.
  • the material of the cotton core may be natural organic cotton, or organically synthesized polymer porous foam cotton.
  • the cotton core is made of cotton fiber, such as cotton thread or cotton yarn, which can stably store part of the aerosol-generating substrate, and quickly guide the aerosol-generating substrate in the fluid guide channel 11a to the heating net 13, and the heating net 13 is in the energized state
  • the aerosol-generating substrate on the cotton layer is heated to form an aerosol.
  • the cotton core can be bulk cotton or woven cotton, and the material includes but not limited to fiber materials such as cotton yarn, linen, viscose, polyester, and polyimide.
  • the cotton core includes 8-64 strands of yarn. That is to say, by setting the cotton thread or cotton yarn to be formed by weaving 8-64 strands of yarn, it can ensure that the cotton core formed by weaving has a set thickness and flowability, and then the cotton core can stably store part of the aerosol-generating substrate , and quickly guide the aerosol-generating matrix in the liquid guide channel 11 a to the heating net 13 .
  • the diameter of the yarn ranges from 0.05 mm to 2.0 mm.
  • the diameter of the yarn is, for example, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3 mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm. It can be understood that if the diameter of the yarn is too small, the structural strength of the cotton core formed by weaving is low, which reduces the service life of the atomizing core 10 .
  • the yarn is straight If the diameter is too large, the cotton core formed by weaving is likely to be too thick, which is not conducive to the circulation of the aerosol generating substrate and affects the atomization amount of the aerosol generating device.
  • the atomization amount of the aerosol generating device can be increased while ensuring a certain structural strength of the cotton core.
  • the fineness of the yarn ranges from 10-60 counts. It can be understood that by further limiting the value range of the fineness of the yarn, it is possible to further ensure that the cotton core has a certain structural strength and at the same time increase the atomization amount of the aerosol generating device.
  • the thickness of the cotton core is 0.2mm-2.0mm.
  • the thickness of the cotton core is less than 0.2mm, the thickness of the cotton core is too thin, and the problem of liquid leakage is prone to occur; when the thickness of the cotton core is greater than 2.0mm, the flow path of the liquid inside the cotton core is too long. Setting the thickness of the cotton core within the thickness range of 0.2mm-2.0mm can reduce the flow path of the liquid in the porous structure of the cotton core and prevent liquid leakage.
  • the porosity of the cotton core is in the range of 0.45-0.99, and the permeability of the cotton core is in the range of 1 ⁇ 10 -11 m 2 -1 ⁇ 10 -9 m 2 .
  • Permeability refers to the ability to allow fluid to pass under a certain pressure difference, and is a parameter that characterizes the ability of the cotton core to conduct liquid. When the permeability of the cotton core is lower than 1 ⁇ 10 -11 m 2 , it will affect the liquid supply and reduce the amount of smoke; and when the permeability of the cotton core is higher than 1 ⁇ 10 -9 m 2 , it may cause Leakage.
  • the porosity of the cotton core When the porosity of the cotton core is lower than 0.45, it will affect the liquid supply and reduce the amount of smoke; and when the porosity of the cotton core is higher than 0.99, it will affect the structural strength of the cotton core. In this way, while ensuring that the cotton core has a certain liquid supply speed, the problem of liquid leakage can also be avoided.
  • the diameter of the liquid guide hole 11 b is smaller than the inner diameter of the support member 11 and larger than the effective capillary diameter of the liquid guide core 12 .
  • the cotton core has a plurality of capillary holes, and the plurality of capillary holes communicate with the liquid guide hole 11b.
  • the diameter of the liquid guide hole 11b is smaller than the inner diameter of the support member 11, and the diameter of the liquid guide hole 11b is larger than the diameter of the capillary hole.
  • the inner diameter of the support member 11 ranges from 0.5 mm to 2.0 mm.
  • the diameter of the yarn is, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8 mm, 1.9mm or 2.0mm. That is to say, the value range of the inner diameter of the support member 11 is limited, that is, the value range of the size of the liquid guiding channel 11a is limited.
  • the inner diameter of the support member 11 is too small, that is, the size of the liquid guide channel 11a is too small, the amount of aerosol-generating substrate per unit volume will be small, which will reduce the liquid supply speed of the atomizing core 10 . If the inner diameter of the support member 11 is too large, the volume of the atomizing core 10 will be larger, which will occupy the internal space of the aerosol generating device on the one hand, and on the other hand, will cause the volume of the aerosol generating device to be larger, which is not conducive to The beauty of the product. By limiting the inner diameter of the support member 11 to 0.5mm-2.0mm, while ensuring a certain liquid supply speed of the atomizing core 10, the aesthetics of the product is also improved.
  • the wall thickness of the support member 11 ranges from 0.1 mm to 0.2 mm.
  • the wall thickness of the support member 11 is, for example, 0.1mm, 0.12mm, 0.14mm, 0.15mm, 0.16mm, 0.18mm, 0.2mm.
  • the wall thickness of the support 11 can be reduced as much as possible, thus reducing the quality of the support 11, thereby reducing the heat capacity consumption of the support 11 and improving
  • the heating efficiency of the atomizing core 10 is improved; in addition, in the case of the same outer diameter, the inner diameter of the support member 11 can be made larger, and the macroscopic flow resistance in the liquid guide channel 11a is smaller; in addition, by lowering the wall of the support member 11 thicker, shortens the path of the aerosol-generating substrate flowing from the liquid-guiding channel 11a to the liquid-guiding core 12, further reduces the flow resistance of the aerosol-generating substrate, and improves the liquid supply capacity and atomization effect of the atomizing core 10.
  • the length of the support member 11 ranges from 3 mm to 30 mm. It can be understood that the longer the axial length of the support member 11 is, the longer the corresponding cotton core will be, the larger the area covered by the heating net 13 will be, and the larger the liquid supply area of the support member 11 will be. Thus, if the axial length of the support member 11 is too small, the liquid supply capability and atomization efficiency of the atomizing core 10 will be reduced. If the axial length of the support member 11 is too large, the volume of the atomizing core 10 will be larger, and on the one hand, it will occupy the inner space of the atomizer.
  • the axial length of the support member 11 is selected according to actual needs, for example, the axial length of the support member 11 is determined according to the size of a specific cartridge.
  • the diameter of the liquid guide hole 11b ranges from 0.2 mm to 0.5 mm. In this way, to a certain extent, it is possible to prevent the flow of the aerosol-generating substrate from being affected by the too small diameter of the liquid guide hole 11b, that is, to reduce the liquid supply capacity of the atomizing core 10, and to reduce the flow rate caused by the too large diameter of the liquid guide hole 11b.
  • the structural strength of the support member 11 further reduces the service life of the atomizing core 10, and at the same time, if the diameter of the liquid guide hole 11b is too large, it may cause liquid leakage.
  • a plurality of liquid guiding holes 11b are arranged in an array on the tube wall, for example, a plurality of liquid guiding holes 11b are arranged in an array.
  • the liquid guide holes 11 b are arranged in a circular array with the axis of the support member 11 as the center along the radial direction of the support member 11 .
  • the number of liquid guide holes 11b can be adaptively selected according to the needs.
  • the diameter of the liquid guide holes 11b ranges from 0.2mm to 0.5mm.
  • the diameter of the liquid guide holes 11b needs to be significantly larger than the liquid guide core
  • the effective capillary diameter of 12 so that the liquid guide core 12 can better absorb liquid from the liquid guide hole 11b; in addition, the aperture of the liquid guide hole 11b should not be greater than 0.5mm, which will cause the liquid guide core 12 to supply liquid everywhere.
  • an optional solution is that the diameter of the liquid guide hole 11 b is selected within a range of 0.2 mm to 0.5 mm, and the plurality of liquid guide holes 11 b are evenly distributed corresponding to the liquid guide core 12 .
  • the atomizing core uses the liquid guide channel 11a in the support member 11 to supply oil.
  • the liquid supply area is the total area of the external openings of all the liquid guide channels 11a on the tube wall, thereby increasing the liquid supply area of the support 11, and the amount of liquid available for atomization on the support 11 is more, so that the atomization power can be improved Improve, under the situation that keeps temperature constant, the aerosol generation amount of atomizing core 10 unit time is bigger; And, cotton core is set between the outer wall surface of support member 11 and atomizing core 10, can prevent liquid from directly directly flow out from the liquid guide channel 11a, reducing the risk of liquid leakage.
  • this liquid supply method can also increase the liquid supply flow rate of the support member 11 per unit time, which is beneficial to keep the liquid guide hole 11b on the support member 11 in a state soaked with liquid, and the liquid can be well absorbed in the liquid guide hole 11b. Isolate the external air, prevent the air from entering the liquid storage chamber inside the atomizer from the liquid guide hole 1202 and form bubbles, and isolate the liquid from the heating net 13, avoiding the risk of the heating net 13 being damaged by dry burning.
  • the atomizing core 10 includes two connecting rings 14 for connecting electricity, and the two connecting rings 14 are sleeved on both ends of the supporting member 11 respectively, and It is electrically connected with the heating network 13. That is to say, the atomizing core 10 is respectively sleeved on both ends of the support member 11 by setting the connecting rings 14, abutting against the heating net 13 and electrically connected to the heating net 13, and the atomizing core 10 is connected to the power supply through the two connecting rings 14. The components are electrically connected.
  • connection ring 14 is not limited here.
  • the material of the connection ring 14 is, for example, conductive metal or alloy such as brass, red copper, aluminum alloy, or the like.
  • the specific installation position of the connecting ring 14 is not limited here, as long as it is installed at both ends of the support member 11 and electrically connected with the heating network 13 .
  • the two connecting rings 14 are sleeved on the heating net 13 . In this way, by sheathing the connecting ring 14 on the heating net 13, on the one hand, the heating net 13 can be firmly fixed on the cotton core and the support member 11; .
  • both connecting rings 14 are sheathed on the support member 11 , and both ends of the heating net 13 are electrically connected to the two connecting rings 14 respectively.
  • the outer periphery of the support member 11 is tightly wrapped around the cotton core, and the heating net 13 is arranged on the outer circumference of the cotton core, and the connecting ring 14 is sleeved on both ends of the heating net 13, thereby forming the entire heating body.
  • references to the terms “in one embodiment,””in some embodiments,””in other embodiments,””in further embodiments,” or “exemplary” mean that The specific features, structures, materials or features described in conjunction with this embodiment or example are included in the embodiments of the present application to One less embodiment or example.
  • the schematic representations of the above terms are not necessarily directed to the same embodiment or example.
  • the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
  • those skilled in the art may combine different embodiments or examples and features of different embodiments or examples described in the present application without conflicting with each other.

Abstract

一种雾化芯、雾化器及气溶胶生成装置，雾化芯(10)包括支撑件(11)、导液芯(12)以及发热网(13)，支撑件(11)包括导液通道(11a)和导液孔(11b)，导液通道(11a)沿支撑件(11)的轴向贯穿支撑件(11)的两端，导液孔(11b)沿支撑件(11)的径向贯穿导液通道(11a)的侧壁，导液芯(12)套设于支撑件(11)的外周，导液通道(11a)内的气溶胶生成基质能够经导液孔(11b)导向导液芯(12)；发热网(13)设置于导液芯(12)的外周，发热网(13)用于将气溶胶生成基质加热雾化。

Description

一种雾化芯、雾化器及气溶胶生成装置
本申请基于申请号为PCT/CN2022/071861、申请日为2022年01月13日的专利申请以及申请号为202211738434.2、申请日为2022年12月30日的专利申请提出，并要求上述专利申请的优先权，上述专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及雾化技术领域，特别是涉及一种雾化芯、雾化器及气溶胶生成装置。
背景技术
气溶胶生成装置的雾化芯用于对气溶胶生成基质加热雾化以生成气溶胶，气溶胶是一种由固体或液体小质点分散并悬浮在气体介质中形成的胶体分散体系，由于气溶胶可通过呼吸系统被人体吸收，为用户提供一种新型的替代吸收方式。雾化芯一般由棉芯和发热体两部分组成。在生产过程中，棉芯的成型过程和发热丝的成型过程是分开进行的，棉芯和发热丝生产完成后，再通过将发热丝绕棉缠绕或者棉芯包裹发热体来进行组合成型。
相关技术中的棉芯与发热丝存在装配一致性差，发热丝间距不可控、棉芯与结构件之间结合的间距不均匀性等问题，从而导致生产过程中匝间距的工艺偏差容易引起局部高温，导致口感一致性差的问题。
发明内容
有鉴于此，本申请实施例期望提供一种雾化芯、雾化器及气溶胶生成装置，以改善现有技术中因生产过程中发热丝的匝间距的工艺偏差而引起局部高温，导致口感一致性差的问题。
为达到上述目的，本申请实施例提供了一种雾化芯，包括：
包括导液通道和导液孔的支撑件，所述导液通道沿所述支撑件的轴向贯穿所述支撑件的两端，所述导液孔沿所述支撑件的径向贯穿所述导液通道的侧壁；
导液芯，所述导液芯套设于所述支撑件的外周，所述导液通道内的气溶胶生成基质能够经所述导液孔导向所述导液芯；
发热网，所述发热网设置于所述导液芯的外周，所述发热网用于将气溶胶生成基质加热雾化。
一种实施方式中，所述发热网为由4-64股发热丝编织形成的编织结构。
一种实施方式中，所述发热丝的直径范围为0.01mm-0.5mm。
一种实施方式中，所述发热丝的材质为铁铬铝、镍铬、钛丝或者镍丝。
一种实施方式中，所述导液芯为棉芯。
一种实施方式中，所述棉芯包括8-64股纱线。
一种实施方式中，所述纱线的直径范围为0.05mm-2.0mm。
一种实施方式中，所述纱线的细度范围为10-60支。
一种实施方式中，所述棉芯的孔隙率范围为0.45-0.99，所述棉芯的渗透率范围1×10-11m2-1×10-9m2。
一种实施方式中，所述导液芯的厚度范围为0.2mm-2mm。
一种实施方式中，所述支撑件的长度范围为3mm-30mm。
一种实施方式中，所述导液孔的孔径小于所述支撑件的内径，并大于所述导液芯的有效毛细直径。
一种实施方式中，所述支撑件的内径范围为0.5mm-2.0mm。
一种实施方式中，所述支撑件的壁厚范围为0.1mm-0.2mm。
一种实施方式中，所述导液孔的孔径范围为0.2mm-0.5mm。
一种实施方式中，所述雾化芯包括用于接电的两个连接环，两个所述 连接环分别套设于所述支撑件的两端，并与所述发热网电连接。
一种实施方式中，两个所述连接环均套设于所述发热网上。
本申请实施例还提供了一种雾化器，包括壳体以及上述所述的雾化芯，所述壳体内部具有储液腔和出雾通道，所述储液腔用于存储气溶胶生成基质，所述出雾通道用于供气溶胶流出所述雾化器，气溶胶生成基质能够经所述储液腔流入所述导液通道。
本申请实施例还提供了一种气溶胶生成装置，包括电源组件以及上述所述的雾化器，所述电源组件与所述雾化器电连接。
本申请实施例提供的雾化芯、雾化器及气溶胶生成装置，其中，雾化芯包括支撑件、导液芯以及发热网，支撑件包括导液通道和导液孔，导液通道沿支撑件的轴向贯穿支撑件的两端，导液孔沿支撑件的径向贯穿导液通道的侧壁，雾化器的储液腔内的气溶胶生成基质可以经支撑件的至少一端进入导液通道，导液芯套设于支撑件的外周，覆盖在导液孔的外侧，导液通道内的气溶胶生成基质可以经导液孔导向导液芯，发热网设置在导液芯的外周，用于对气溶胶生成基质进行加热雾化以产生气溶胶供使用者吸食。本申请实施例的雾化芯，通过设置具有一定刚性的支撑件，并用编织的方法在支撑件外周的导液芯上编织形成呈网状结构的发热网，可以实现发热网的连续生产，有利于实现自动化装配，还能够有效提高雾化芯的组装效率，同时，可以确保发热网具有较好的完整性和一致性，从而可以使得雾化芯的温度场分布更加均匀，进而可以使得气溶胶具有良好的口感，且口感一致性较好，还提高了雾化芯的雾化面积。
附图说明
图1为本申请一实施例的雾化芯省略了导液芯的结构示意图；
图2为图1的截面图；
图3为本申请另一实施例的雾化芯的截面图；
图4为本申请一实施例的支撑件的结构示意图；
图5为本申请一实施例的发热网的结构示意图；
图6为本申请一实施例的连接环的结构示意图。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的技术特征可以相互组合，具体实施方式中的详细描述应理解为本申请宗旨的解释说明，不应视为对本申请的不当限制。
在本申请实施例中，“轴向”方位或位置关系为基于图2所示的方位或位置关系，需要理解的是，这些方位术语仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。下面结合附图及具体实施例对本申请再作进一步详细的说明。
本申请实施例提供了一种气溶胶生成装置，包括雾化器以及电源组件，电源组件与雾化器电连接。雾化器用于储存液态的气溶胶生成基质，并在电源组件的电能作用下加热雾化气溶胶生成基质以产生气溶胶供使用者取用。
气溶胶生成装置用于对气溶胶生成基质进行雾化以产生气溶胶供用户吸食。所述气溶胶生成基质包括但不限于药品、含尼古丁的材料或不含尼古丁的材料等。
气溶胶生成装置包括用于存储气溶胶生成基质的储液腔，储液腔内的气溶胶生成基质能够流向雾化器的雾化芯10，雾化芯10用于加热雾化气溶胶生成基质以生成气溶胶，生成的气溶胶能够经雾化器的出雾通道流出气溶胶生成装置，以供人使用。
需要说明的是，本申请实施例提供的气溶胶生成装置的具体类型不限，示例性地，气溶胶生成装置可以是医用雾化设备，也可以是空气加湿器， 还可以是电子烟等雾化设备。
本申请实施例提供了一种雾化器，包括壳体以及雾化芯10。
壳体内部具有储液腔，储液腔用于存储气溶胶生成基质，气溶胶生成基质能够经储液腔流入雾化芯10的支撑件11的导液通道11a。
壳体内部具有进液通道和出雾通道，出雾通道用于供气溶胶流出雾化器，储液腔内的气溶胶生成基质能够经进液通道流入导液通道11a。也就是说，雾化器的储液腔内的气溶胶生成基质能够经进液通道流入导液通道11a，发热网13对气溶胶生成基质进行加热雾化以形成气溶胶，气溶胶经出雾通道流出雾化器供使用者取用。
需要说明的是，使用雾化器的具体方式在此不做限制，例如使用者可以通过壳体吸食气溶胶，也可以通过额外的吸嘴与壳体配合吸食气溶胶。
需要说明的是，壳体的具体形状在此不做限制，壳体的形状包括但不限于为中空的圆柱形、中空的椭圆柱形或横截面为倒圆角的多边形，例如倒圆角的三角形等。
本申请实施例提供了一种雾化芯，请参阅图1至图5，包括支撑件11、导液芯12以及发热网13。
支撑件11包括导液通道11a和导液孔11b，导液通道11a沿支撑件11的轴向贯穿支撑件11的两端，导液孔11b沿支撑件11的径向贯穿导液通道11a的侧壁。储液腔内的气溶胶生成基质可以经支撑件11的至少一端进入导液通道11a，导液芯12套设于支撑件11的外周，覆盖在导液孔11b的外侧，导液通道11a内的气溶胶生成基质能够经导液孔11b导向导液芯12，发热网13设置于导液芯12的外周，发热网13用于对气溶胶生成基质进行加热雾化以产生气溶胶供使用者吸食。
当然，储液腔内的气溶胶生成基质也可以不经导液通道11a以及导液孔11b导向导液芯12，而是直接通过伸入储液腔内或者与储液腔连通的部 分导液芯12进行吸液。
需要说明的是，导液通道11a可以是一端与储液腔连通，也可以是两端均与储液腔连通。本申请实施例中以导液通道11a两端均与储液腔连通为例进行描述，如此，不但提高了气溶胶生成基质进入雾化芯10的量，还可以使得气溶胶生成基质经导液通道11a均匀地导向导液芯12，进而提高雾化效果。
示例性地，编织Mesh(网状)发热网13由编织机制作而成，具有较好的一致性和完整性，可以通过调节编织机参数、编织速度来控制发热网13的密度和阻值。
需要说明的是，发热网13的编织纹理可以是斜纹、“+”字纹或“人”字纹等，具体可以根据实际需要进行设置。
需要说明的是，本申请实施例列举的支撑件11可以为用于容纳气溶胶生成基质的管状件，该管状件类似圆柱形，但并不用以限制本申请实施例的支撑件11的形状为类似圆柱形，本申请实施例中的支撑件11也可以是类似三棱形、椭圆柱形等其他形状。
示例性地，请参阅图1至图4，支撑件11为两端贯穿的中空管，中空管的管腔构成导液通道11a，导液孔11b沿中空管的径向贯穿中空管的侧壁。
需要说明的是，导液孔11b的具体形状在此不做限制，包括但不限于为圆形孔、椭圆形孔、长条孔、方孔等。
需要说明的是，导液通道11a的具体形状在此不做限制，导液通道11a的横截面形状包括但不限于为圆形、椭圆形、或倒圆角的多边形，例如倒圆角的三角形等，示例性地，一实施例中，请参阅图1至图4，导液通道11a的横截面形状为圆形，有利于气溶胶生成基质在导液通道11a中流动地流畅性。其中，导液通道11a的横截面形状指沿垂直于支撑件11的轴向的平面所截得的导液通道11a的截面形状。
需要说明的是，支撑件11的具体材质在此不做限制，示例性地，支撑件11的材质例如为不锈钢、致密陶瓷、多孔陶瓷等。从而确保支撑件11的结构强度，进而能够为雾化芯10的导液芯12、发热网13等其他零部件提供有效的支撑。
在一些实施方式中，支撑件11采用玻璃制成，玻璃具体为硼硅玻璃、石英玻璃或光敏铝硅酸锂玻璃中的任意一种。在一些实施方式中，支撑件11采用不锈钢制成，不锈钢具有强度高、机械加工性能好等优点，在支撑件11侧壁上开设若干导液孔的同时还能保证支撑件的稳固；具体地，支撑件可以采用SUS304不锈钢，还具有低毒和高导热系数的特点，适合用于电子雾化装置中与烟油接触，安全性能高且烟油流动性好。在另外的一些实施方式中，支撑件11的材料还可以为陶瓷、其他金属、硬质塑料等具有一定机械强度的部件。
相关技术中，雾化芯一般由棉芯和发热体两部分组成。在生产过程中，棉芯的成型过程和发热丝的成型过程是分开进行的，棉芯和发热丝生产完成后，再通过将发热丝绕棉缠绕或者棉芯包裹发热丝来进行组合成型。现有发热丝绕棉芯缠绕的雾化芯，生产过程中其棉芯与发热丝缠绕需要分开进行，棉芯成型后需要裁剪后单个、手动缠绕发热丝，其组装的一致性差且效率低。同时，缠绕式发热体雾化面积小，温度分布不均，口感一致性容易受到匝间距的影响。现有的棉芯包裹发热体的雾化芯具有良好的口感，但其采用冲压或者蚀刻工艺，生产过程中先得到片状的单个发热体，再手工卷曲后逐个包裹在棉芯内部成形，手工卷曲包裹的工艺效率低、一致性性差，所采用的蚀刻工艺成本高，且自动化装配工艺复杂。
而本申请实施例提供的雾化芯10包括支撑件11、导液芯12以及发热网13，支撑件11包括导液通道11a和导液孔11b，导液通道11a沿支撑件11的轴向贯穿支撑件11的两端，导液孔11b沿支撑件11的径向贯穿导液 通道11a的侧壁，雾化器的储液腔内的气溶胶生成基质可以经支撑件11的至少一端进入导液通道11a，导液芯12套设于支撑件11的外周，覆盖在导液孔11b的外侧，导液通道11a内的气溶胶生成基质可以经导液孔11b导向导液芯12，发热网13设置在导液芯12的外周，用于对气溶胶生成基质进行加热雾化以产生气溶胶供使用者吸食。本申请实施例的雾化芯10，通过设置具有一定刚性的支撑件11，并用编织的方法在支撑件11外周的导液芯12上编织形成呈网状结构的发热网13，可以实现发热网13的连续生产，有利于实现自动化装配，还能够有效提高雾化芯10的组装效率，同时，可以确保发热网13具有较好的完整性和一致性，从而可以使得雾化芯10的温度场分布更加均匀，进而可以使得气溶胶具有良好的口感，且口感一致性较好，还提高了雾化芯10的雾化面积。
本申请实施例提供的雾化芯10包括支撑件11、导液芯12以及发热网13，通过采用编织的方法在支撑件11外周的导液芯12上编织形成呈网状结构的发热网13，克服了发热丝绕导液芯12缠绕需要手动安装的问题，同时也克服了导液芯12包裹发热体制造成本高、自动化装配复杂的问题。
一实施例中，发热网13为由4-64股发热丝编织形成的编织结构。也就是说，将4-64股发热丝利用编织机编织形成发热网13，从而能够在确保发热网13具有很好的完整性和一致性的同时，还可以通过调节编织机参数、编织速度来控制发热网13的密度和阻值。通过采用4-64股发热丝编织形成发热网13，即可以通过控制发热丝的股数来控制雾化芯10的温度场分布、雾化面积等，进而控制雾化芯10的加热效率，也就是说，可以通过控制发热丝的股数，适应不同类型和需求的气溶胶生成装置。
一实施例中，发热丝的直径范围为0.01mm-0.5mm。示例性地，发热丝的直径例如为0.01mm、0.05mm、0.08mm、0.1mm、0.15mm、0.2mm、0.25mm、0.3mm、0.35mm、0.38mm、0.4mm、0.45mm或0.5mm。可以理解的是，若 发热丝的直径过小，则发热丝的结构强度较低，在编织过程中发热丝易断裂，且编织形成的发热网13的结构强度较低，降低了雾化芯10的使用寿命。若发热丝的直径过大，则编织形成的发热网13易过厚，不利于气溶胶发生基质的流通，影响气溶胶生成装置的雾化量。通过将发热丝的直径限定的0.01mm-0.5mm之间，能够在确保发热网13具有一定结构强度的同时，提高气溶胶生成装置的雾化量。另外，通过将发热丝的直径限定的0.01mm-0.5mm之间，还可以保证雾化芯10的加热效率。
需要说明的是，发热丝的材质在此不做限制，示例性地，一些实施例中，发热丝的材质为铁铬铝、镍铬、钛丝或者镍丝等金属或合金。
一实施例中，导液芯12为棉芯，棉芯的具体材质不做限制，示例性地，棉芯的材质可以是天然有机棉，也可以是有机合成的高分子多孔泡沫棉。
棉芯为棉纤维材质，棉芯例如为棉线或棉纱，可以稳定储存部分气溶胶生成基质、并快速地将导液通道11a内的气溶胶生成基质导向发热网13，发热网13在通电状态下加热棉层上的气溶胶生成基质以形成气溶胶。
棉芯可以为散装棉或者编织棉，材质包括但不限于为棉纱、亚麻、黏胶、涤纶、聚酰亚胺等纤维材料。
一实施例中，棉芯包括8-64股纱线。也就是说，通过将棉线或棉纱设置为由8-64股纱线编织形成，从而能够确保编织形成的棉芯具有设定厚度和流通性，进而可以使得棉芯能够稳定储存部分气溶胶生成基质、并快速地将导液通道11a内的气溶胶生成基质导向发热网13。
一实施例中，纱线的直径范围为0.05mm-2.0mm。示例性地，纱线的直径例如为0.05mm、0.1mm、0.2mm、0.3mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm、0.9mm、1.0mm、1.1mm、1.2mm、1.3mm、1.4mm、1.5mm、1.6mm、1.7mm、1.8mm、1.9mm或2.0mm。可以理解的是，若纱线的直径过小，则编织形成的棉芯的结构强度较低，降低雾化芯10的使用寿命。若纱线的直 径过大，则编织形成的棉芯易过厚，不利于气溶胶发生基质的流通，影响气溶胶生成装置的雾化量。通过将纱线的直径限定在0.05mm-0.2mm之间，能够在确保棉芯具有一定结构强度的同时，提高气溶胶生成装置的雾化量。
一实施例中，纱线的细度范围为10-60支。可以理解的是，通过进一步限定纱线的细度的取值范围，能够进一步确保棉芯具有一定结构强度的同时，提高气溶胶生成装置的雾化量。
一实施例中，棉芯的厚度为0.2mm-2.0mm。当棉芯的厚度小于0.2mm时，棉芯的厚度太薄，容易出现漏液问题；当棉芯的厚度大于2.0mm时，液体在棉芯内部的流动路径过长。将棉芯的厚度设置在0.2mm-2.0mm的厚度范围内，既可以减少液体在棉芯内多孔结构流动的路径，又不会发生漏液。
一实施例中，棉芯的孔隙率范围为0.45-0.99，棉芯的渗透率范围1×10-11m2-1×10-9m2。渗透率是指在一定压差下，允许流体通过的能力，是表征棉芯传导液体能力的参数。当棉芯的渗透率低于1×10-11m2时，会影响供液量，降低烟雾量；而当棉芯的渗透率高于1×10-9m2时，则有可能会导致漏液。当棉芯的孔隙率低于0.45时，会影响供液量，降低烟雾量；而当棉芯的孔隙率高于0.99时，会影响棉芯的结构强度。如此，在保证棉芯具有一定供液速度的同时，还可以避免出现漏液问题。
一实施例中，导液孔11b的孔径小于支撑件11的内径，并大于导液芯12的有效毛细直径。可以理解的是，棉芯具有多个毛细孔，多个毛细孔与导液孔11b相连通，导液孔11b的孔径小于支撑件11的内径，且导液孔11b的孔径大于毛细孔的直径，从而能够确保气溶胶生成基质的有效流通，棉芯可以在毛细孔的毛细作用力下快速地将导液通道11a内的气溶胶生成基质导向发热网13，发热网13在通电状态下加热棉层上的气溶胶生成基质以形成气溶胶。
一实施例中，支撑件11的内径范围为0.5mm-2.0mm。示例性地，纱线的直径例如为0.5mm、0.6mm、0.7mm、0.8mm、0.9mm、1.0mm、1.1mm、1.2mm、1.3mm、1.4mm、1.5mm、1.6mm、1.7mm、1.8mm、1.9mm或2.0mm。也就是说，限定了支撑件11内径的取值范围，也即限定了导液通道11a尺寸的取值范围。可以理解的是，支撑件11的内径若过小，即导液通道11a的尺寸过小，则单位体积通入的气溶胶生成基质的量较小，降低了雾化芯10的供液速度。若支撑件11的内径过大，则使得雾化芯10的体积较大，一方面会占用气溶胶生成装置的内部空间，另一方面，还会导致气溶胶生成装置的体积较大，不利于产品的美观。通过将支撑件11的内径限定在0.5mm-2.0mm之间，在确保雾化芯10具有一定供液速度的同时，还提高了产品的美观性。
一实施例中，支撑件11的壁厚范围为0.1mm-0.2mm。示例性地，支撑件11的壁厚例如为0.1mm、0.12mm、0.14mm、0.15mm、0.16mm、0.18mm、0.2mm。可以理解的是，在保障强度、安全性的情况下，可以尽可能地减薄支撑件11的壁厚，如此，降低了支撑件11的质量，从而降低了支撑件11的热容消耗，提高了雾化芯10的加热效率；另外，在相同的外径情况下，可以使得支撑件11的内径更大，导液通道11a中的宏观流动阻力更小；另外，通过降低支撑件11的壁厚，缩短了气溶胶生成基质从导液通道11a流向导液芯12的路径，进一步地降低了气溶胶生成基质的流动阻力，进而提高了雾化芯10的供液能力和雾化效果。
在一些实施方式中，支撑件11的长度范围为3mm-30mm。可以理解的是，支撑件11的轴向长度越长，对应的棉芯也将越长，发热网13覆盖的范围也将越大，支撑件11的供液面积也将越大。如此，支撑件11的轴向长度若过小，则会降低了雾化芯10的供液能力以及雾化效率。若支撑件11的轴向长度过大，则使得雾化芯10的体积较大，一方面会占用雾化器的内 部空间，另一方面，还会导致雾化器的体积较大，不利于产品的美观。通过将支撑件11的轴向长度限定在3mm-30mm之间，能够在保障雾化芯10供液能力以及雾化效率的同时，提高雾化器的美观性。可以理解的是，支撑件11的轴向长度根据实际需要进行选择，例如根据具体烟弹的大小，确定支撑件11的轴向长度。
一实施例中，导液孔11b的孔径范围为0.2mm-0.5mm。如此，在一定程度上可以防止因导液孔11b的孔径过小而影响气溶胶生成基质的流通，即降低了雾化芯10的供液能力，因导液孔11b的孔径过大而导致降低支撑件11的结构强度，进而降低雾化芯10的使用寿命，同时，若导液孔11b的孔径过大，可能会导致漏液。
在一些实施方式中，多个导液孔11b在管壁上呈阵列式排布，例如多个导液孔11b呈阵列式排布。当支撑件11呈圆环状时，导液孔11b沿支撑件11的径向呈以支撑件11轴心为圆心的环形阵列排布。导液孔11b的数量可以根据需要适应性选取，导液孔11b的孔径大小范围为0.2mm-0.5mm，为了更好的连线均匀供液，导液孔11b的孔径需要明显大于导液芯12的有效毛细直径，从而使得导液芯12可以更好的从导液孔11b中吸液；另外，导液孔11b的孔径也不宜大于0.5mm，如此会造成导液芯12各处供液均匀性较差的问题。因此，可选的方案是导液孔11b的孔径大小范围选择在0.2mm-0.5mm之间，且多个导液孔11b对应导液芯12均匀分布。
综上所述，本申请实施例提供的雾化芯，采用支撑件11内的导液通道11a供油，与传统长条形棉芯从棉芯两端供液的方式相比，支撑件11的供液面积为管壁上所有导液通道11a的外部开口的总面积，从而增加了支撑件11的供液面积，支撑件11上可供雾化的液量更多，使得雾化功率得以提高，在保持温度不变的情况下，雾化芯10单位时间的气溶胶产生量更大；而且，在支撑件11的外壁面和雾化芯10之间设置棉芯，可以防止液体直 接从导液通道11a向外流出，降低了漏液的风险。此外，这种供液方式还可以增加支撑件11在单位时间的供液流量，利于支撑件11上的导液孔11b保持处于浸润有液体的状态，液体在导液孔11b内可以很好地隔离外部空气，防止空气从导液孔1202进入雾化器内部的储液腔并形成气泡、而隔绝液体和发热网13，避免了发热网13干烧损坏的风险。
一实施例中，请参阅图1至图3、以及图6，雾化芯10包括用于接电的两个连接环14，两个连接环14分别套设于支撑件11的两端，并与发热网13电连接。也就是说，雾化芯10通过设置连接环14分别套设于支撑件11的两端，与发热网13抵接并与发热网13电连接，雾化芯10通过两个连接环14与电源组件实现电连接。
需要说明的，连接环14的具体材质在此不做限制，示例性地，连接环14的材质例如为黄铜、紫铜、铝合金等导电金属或合金。
需要说明的是，连接环14的具体设置位置在此不做限制，只要设置在支撑件11的两端，并与发热网13电连接即可。示例性地，一实施例中，请参阅图1至图3，两个所述连接环14均套设于发热网13上。如此，连接环14通过套设在发热网13上，一方面，能够使发热网13牢靠地固定在棉芯以及支撑件11上，另一方面，还可以通过连接环14与电源组件实现电连接。
另一些实施例中，两个连接环14均套设于支撑件11上，且发热网13的两端与两个连接环14分别电连接。
在装配的时候，现在支撑件11的外周紧密包裹棉芯，在棉芯的外周设置发热网13，连接环14套设于发热网13的两端，从而构成整个发热体。
在本申请的描述中，参考术语“一实施例中”、“在一些实施例中”、“另一些实施例中”、“又一些实施例中”、或“示例性”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请实施例的至 少一个实施例或示例中。在本申请中，对上述术语的示意性表述不是必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本申请中描述的不同实施例或示例以及不同实施例或示例的特征进行结合。
以上所述仅为本申请的较佳实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均包含在本申请的保护范围之内。

Claims (15)

  1. 一种雾化芯，包括：
    包括导液通道和导液孔的支撑件，所述导液通道沿所述支撑件的轴向贯穿所述支撑件的两端，所述导液孔沿所述支撑件的径向贯穿所述导液通道的侧壁；
    导液芯，所述导液芯套设于所述支撑件的外周，所述导液通道内的气溶胶生成基质能够经所述导液孔导向所述导液芯；
    发热网，所述发热网设置于所述导液芯的外周，所述发热网用于将气溶胶生成基质加热雾化。
  2. 根据权利要求1所述的雾化芯，所述发热网为由4-64股发热丝编织形成的编织结构。
  3. 根据权利要求2所述的雾化芯，所述发热丝的直径范围为0.01mm-0.5mm。
  4. 根据权利要求2所述的雾化芯，所述发热丝的材质为铁铬铝、镍铬、钛丝或者镍丝。
  5. 根据权利要求1所述的雾化芯，所述导液芯为棉芯。
  6. 根据权利要求5所述的雾化芯，所述棉芯包括8-64股纱线。
  7. 根据权利要求6所述的雾化芯，所述纱线的直径范围为0.05mm-2.0mm；和/或，所述纱线的细度范围为10-60支。
  8. 根据权利要求5所述的雾化芯，所述棉芯的孔隙率范围为0.45-0.99，所述棉芯的渗透率范围1×10-11m2-1×10-9m2。
  9. 根据权利要求1所述的雾化芯，所述导液芯的厚度范围为0.2mm-2mm；和/或，所述支撑件的长度范围为3mm-30mm。
  10. 根据权利要求1所述的雾化芯，所述导液孔的孔径小于所述支撑 件的内径，并大于所述导液芯的有效毛细直径；和/或，所述导液孔的孔径范围为0.2mm-0.5mm。
  11. 根据权利要求1所述的雾化芯，所述支撑件的内径范围为0.5mm-2.0mm；和/或，所述支撑件的壁厚范围为0.1mm-0.2mm。
  12. 根据权利要求1所述的雾化芯，所述雾化芯包括用于接电的两个连接环，两个所述连接环分别套设于所述支撑件的两端，并与所述发热网电连接。
  13. 根据权利要求12所述的雾化芯，两个所述连接环均套设于所述发热网上。
  14. 一种雾化器，包括壳体以及权利要求1-13任意一项所述的雾化芯，所述壳体内部具有储液腔和出雾通道，所述储液腔用于存储气溶胶生成基质，所述出雾通道用于供气溶胶流出所述雾化器，气溶胶生成基质能够经所述储液腔流入所述导液通道。
  15. 一种气溶胶生成装置，包括电源组件以及权利要求14所述的雾化器，所述电源组件与所述雾化器电连接。
PCT/CN2023/071812 2022-01-13 2023-01-11 一种雾化芯、雾化器及气溶胶生成装置 WO2023134710A1 (zh)

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