WO2023207897A1 - 雾化芯组件及其制备方法、气溶胶生成装置 - Google Patents

雾化芯组件及其制备方法、气溶胶生成装置 Download PDF

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Publication number
WO2023207897A1
WO2023207897A1 PCT/CN2023/090263 CN2023090263W WO2023207897A1 WO 2023207897 A1 WO2023207897 A1 WO 2023207897A1 CN 2023090263 W CN2023090263 W CN 2023090263W WO 2023207897 A1 WO2023207897 A1 WO 2023207897A1
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WO
WIPO (PCT)
Prior art keywords
groove
lead
liquid
conductive
atomization
Prior art date
Application number
PCT/CN2023/090263
Other languages
English (en)
French (fr)
Inventor
黄文强
袁志
曾庆雯
王晓宁
潘柯成
雷宝灵
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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.)
Filing date
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Application filed by 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Publication of WO2023207897A1 publication Critical patent/WO2023207897A1/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
    • A24F40/10—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
    • 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
    • A24F40/40—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
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture

Definitions

  • Embodiments of the present application relate to the field of aerosol generating devices, and in particular, to an atomizing core assembly and a preparation method thereof, as well as an aerosol generating device.
  • the aerosol generating device includes an atomizer.
  • the core component of the atomizer is an atomizing core assembly.
  • the atomizing core assembly atomizes a liquid matrix to generate an aerosol.
  • Ceramic atomizing cores made of ceramic materials are widely used in aerosol generating devices.
  • Ceramic atomizer cores mainly include two types.
  • the first type is a roughly block-shaped ceramic liquid conductor.
  • a heating circuit is printed on the outer surface of the ceramic conductive liquid, and silver paste is printed on both sides of the heating circuit to form a conductive electrode, or It is a heating steel mesh embedded in the ceramic liquid conductor, and conductive leads are connected at both ends of the heating mesh.
  • the second type is a roughly circular tube-shaped ceramic liquid conductor, with a heating mesh or heating wire fixed on the inner wall of the ceramic liquid conductor. , conductive leads are connected on both sides of the heating element.
  • the first type of ceramic atomizing core is suitable for horizontal fixation inside a flat atomizer due to its large overall thickness.
  • the second type of ceramic atomizing core is mainly suitable for cylindrical atomizers, but cylindrical ceramic atomizers Chemical cores generally require the use of cotton wrapping technology, which makes their assembly process more difficult.
  • the first type of block ceramic atomizer core is difficult to be used in cylindrical atomizers or aerosol generating devices due to its size and lead fixation problems.
  • an atomizer core assembly including:
  • Porous liquid conductive configured to absorb and transfer a liquid matrix; said porous liquid conductive having The opposite liquid suction surface and atomization surface, and the side connected between the liquid suction surface and the atomization surface;
  • heating element configured to heat a portion of said liquid matrix, said heating element comprising a resistive heating track electrically extending across said atomizing surface;
  • a conductive lead is connected to the end of the heating element.
  • a part of the conductive lead is embedded inside the porous conductive liquid, and the other part is away from the porous conductor from the side in a direction substantially parallel to the atomization surface. Liquid extension.
  • the conductive lead includes a first conductive lead and a second conductive lead, and the first conductive lead and the second conductive lead are led out from the side of the same side of the porous liquid-conducting wire.
  • the porous conductive liquid is provided with a first lead groove and a second lead groove, the first conductive lead is accommodated in the first lead groove, and the second conductive lead is accommodated in inside the second lead slot.
  • the heating element further includes a first electrical connection and a second electrical connection connected to both ends of the heating track, the first electrical connection being configured to connect with at least one of the first conductive leads.
  • a portion of the surface contacts and is configured to secure the first conductive lead
  • the second electrical connection is configured to contact at least a portion of the surface of the second conductive lead and is configured to secure the second conductive lead.
  • At least a portion of the first electrical connection portion is filled from the atomization surface into the first lead groove and combined around the first conductive lead, and the second electrical connection portion At least a part of the atomization surface is filled into the second lead groove and combined around the second conductive lead.
  • the porous liquid-conducting liquid is further provided with a first groove and a second groove, the first groove is connected to the first lead groove, and the second groove is connected to the The second lead grooves are connected.
  • a portion of the first electrical connection portion is received in the first groove and is configured to secure the first conductive lead; a portion of the second electrical connection portion is received in the first groove. Within the second groove and configured to secure the second conductive lead.
  • the depth of the first groove from the atomization surface is smaller than the depth of the first groove.
  • the depression depth of the lead groove, the depression depth of the second groove from the atomization surface is smaller than the depression depth of the second lead groove.
  • the first lead slot and the second lead slot are arranged in parallel.
  • first groove and the first lead groove are combined to form a T-shaped groove; or the second groove and the second lead groove are combined to form a T-shaped groove.
  • the porous liquid-conducting liquid includes a main body part and a boss part arranged along the thickness direction, a step is formed between the main body part and the boss part, and the atomization surface is provided on the boss part. Ministry.
  • the first lead groove and the second lead groove are both provided on the boss portion.
  • An embodiment of the present application also provides a method for preparing the above-mentioned atomizing core assembly.
  • the preparation method includes: preparing a porous liquid-conducting liquid, and forming a recessed first lead groove and a third recessed lead groove on the atomization surface of the porous liquid-conducting liquid.
  • Two lead troughs place the first conductive lead into the first lead trough, place the second conductive lead into the second lead trough; combine the conductive slurry with the atomized surface of the porous liquid-conducting liquid to form
  • the resistance heating track is filled with a portion of the conductive paste in the first lead groove and the second lead groove, and a portion of the first conductive lead and the second conductive lead are embedded in the porous conductive liquid through curing.
  • the other part extends away from the porous liquid conductor in a direction substantially parallel to the atomization surface.
  • the porous liquid-conducting liquid is provided with a first groove and a second groove, wherein the first groove is connected to the first lead groove, and the second groove is connected to the second lead groove. connected; a part of the conductive paste is filled into the first groove and the second groove.
  • the width of the first lead groove and the second lead groove located on the atomization surface is greater than the width of the groove bottom; or the first groove and the second groove are located on the atomization surface.
  • the width of the mouth is greater than the width of the groove bottom.
  • Embodiments of the present application also provide an aerosol generating device, including a housing and a liquid storage chamber located in the housing, the liquid storage chamber being configured to store a liquid matrix, and the above-mentioned atomizing core assembly being disposed in the housing.
  • the atomization core assembly is configured to atomize a liquid matrix to generate an aerosol; wherein the atomization core assembly includes an atomization surface, and the extension direction of the atomization surface is parallel to the longitudinal direction of the housing.
  • the beneficial effect of this application is that because the heating element is configured such that the resistance heating track extends on the atomization surface, the atomization efficiency of the heating element is higher compared to the embedded heating steel mesh; further, the heating element of the atomization core assembly A part of the conductive lead connected at both ends is embedded inside the porous liquid conductor, and the other part is extended and fixed from the side of the porous liquid conductor in a direction substantially parallel to the atomization surface of the porous liquid conductor, which is conducive to the atomization of the entire atomization core assembly along with it.
  • the surface is parallel to the inside of the atomizer, making the whole body more suitable for use in cylindrical or similar cylindrical atomizers.
  • the combination of heating tracks and conductive leads is conducive to fixing in cylindrical or similar cylindrical atomizers. applied in the atomizer.
  • Figure 1 is a structural diagram of an aerosol generating device provided by an embodiment of the present application.
  • Figure 2 is a cross-sectional view of an atomizer provided by an embodiment of the present application.
  • Figure 3 is a perspective view of the atomization core assembly provided by the embodiment of the present application.
  • Figure 4a is a first heating circuit diagram of the heating element provided by the embodiment of the present application.
  • Figure 4b is a second heating circuit diagram of the heating element provided by the embodiment of the present application.
  • Figure 4c is a third heating circuit diagram of the heating element provided by the embodiment of the present application.
  • Figure 5 is a perspective view of the porous liquid-conducting device provided by the embodiment of the present application.
  • Figure 6 is a perspective view of the porous conductive liquid provided by the embodiment of the present application after placing conductive leads;
  • Figure 7 is a perspective view of the atomization core assembly from another perspective provided by the embodiment of the present application.
  • Figure 8 is an exploded view of the atomizer provided by the embodiment of the present application.
  • connection can be a direct connection or an indirect connection.
  • set can be directly set at, or Can be located indirectly.
  • the present application provides an aerosol generating device.
  • the aerosol generating device includes an atomizer and a power supply component.
  • the power supply component provides electric drive for the atomizer.
  • the atomizer atomizes the liquid matrix stored inside it to generate an aerosol.
  • Aerosol-generating devices can be divided into electronic cigarettes and medical devices.
  • the liquid matrix stored inside e-cigarettes includes nicotine preparations, glycerin, propylene glycol, flavors and fragrances, flavor components, etc.
  • the aerosol generated by users smoking e-cigarettes mainly meets the demand for nicotine or flavor components.
  • the liquid matrix stored inside it includes active functional components, glycerin, propylene glycol, etc.
  • the aerosol generated by users inhaling such devices is mainly used to treat respiratory diseases, or inhale some medicinal activity through the lungs. Element.
  • the relevant implementation solutions provided in this application can be applied to the above two types of devices, and are not limited here.
  • the atomizer 100 and the power supply assembly 200 can be accommodated inside a housing to form a disposable aerosol generating device that is smaller in size and easy to carry.
  • the atomizer 100 and the power supply assembly 200 can also be configured as two independent components, and the two components are connected through a detachable connection method to form a combined aerosol generating device.
  • a portion of the inner cavity of the housing of the power supply assembly defines a receiving cavity
  • the atomizer can be inserted from one end of the housing of the power supply assembly, and at least a portion of the surface of the atomizer can be retained inside the receiving cavity.
  • the two components can be connected through magnetic adsorption or buckle to form a stable connection between the two components.
  • a threaded sleeve is provided at the end of the atomizer 100
  • a threaded groove is provided at the end of the power supply assembly 200
  • the two components are threadedly connected.
  • An electrical connection component is provided so that after the two components are connected, the circuit between the two components remains connected.
  • the internal structure of the power supply component 200 can be configured in a common form in known technologies, such as a control module and a charging module, etc., which will not be described in detail in the implementation part of this application.
  • the atomizer 100 includes a housing 10 .
  • the housing 10 includes a first end and a second end that are longitudinally opposite.
  • the first end is provided with a suction nozzle 11
  • the second end is provided with a connecting seat 12 .
  • the suction nozzle 11 includes a longitudinally penetrating suction nozzle opening 110 through which the aerosol enters the user's mouth.
  • the suction nozzle 11 is generally made of a plastic material with a higher safety level, such as PPSU, so as to enhance the user's ability, the suction nozzle 11 can be set as a roughly duckbill-shaped flat suction nozzle, with the end of the housing 10 open, and the suction nozzle 11
  • the sealing sleeve is connected to the open end of the housing 10; in an optional example, the suction nozzle 11 can be a universal cylindrical suction nozzle, with a plug-in interface provided at one end of the housing 10, and the cylindrical suction nozzle can be plugged into on the socket of the housing 10.
  • the second end of the housing 10 is set as an open end, and other components inside the atomizer 100 are installed inside the housing 10 through the open end.
  • connection base 12 is configured to provide longitudinal support to other components inside the atomizer 100, on the other hand, a part of the connection base 12 is configured as a threaded electrode, and the threaded electrode is screwed into the threaded groove of the power supply component, thereby communicating Atomizer 100 and power supply assembly 200.
  • a part of the internal space of the housing 10 is provided as a liquid storage chamber 13, and the liquid storage chamber 13 is configured to store a liquid matrix.
  • An atomizing assembly is provided inside the housing 10 .
  • the atomizing assembly includes an atomizing core assembly 20 .
  • the liquid matrix inside the liquid storage chamber 13 can flow to the atomizing core assembly 20 and be atomized by the atomizing core assembly 20 to generate aerosol.
  • the atomization assembly also includes a bracket 30 configured to support the atomization core assembly 20.
  • the bracket 30 housed inside is generally configured in a circular tube shape or a cylindrical-like tube shape.
  • a substantially flat plate-shaped ceramic atomization core assembly 20 with a novel structure is provided, which can be fixed in the inner cavity of a substantially tubular or tubular-like bracket 30 .
  • the atomization core assembly 20 includes a porous liquid conductor 21 and a heating element 22 , and the heating element 22 is combined on the porous liquid conductor 21 .
  • the porous liquid-conducting surface 21 is generally in the form of a flat plate, and has a liquid-absorbing surface 211 , an atomization surface 212 and an oppositely arranged liquid-absorbing surface 211 .
  • Four sides 213 are connected between the liquid suction surface 211 and the atomization surface 212.
  • the thickness of the porous liquid-conducting liquid 21 is thin.
  • the porous liquid-conducting liquid 21 includes a length direction l, a width direction w and a thickness direction h that are perpendicular to each other.
  • the length of the side 213 of the porous liquid-conducting liquid 21 extending along the thickness direction is smaller than the liquid-absorbing surface 211 or the atomization surface.
  • the heating element 22 is combined with the atomization surface 212.
  • the atomization surface 212 is arranged opposite to the liquid suction surface 211.
  • the liquid matrix inside the liquid storage chamber 13 is configured to flow to the liquid suction surface 211 and be transferred to the mist through the liquid suction surface 211.
  • the heating element 22 on the atomization surface is understandable because the thickness of the porous liquid conductive liquid 21 is thin, so the path for the liquid matrix to be transferred to the atomization surface 212 through the liquid suction surface 211 of the porous liquid conductive liquid 21 is shorter, even if the viscosity is relatively low.
  • a high liquid base can also be transferred to the heating element 22 in a short time, so it is suitable for use in an atomizer 100 with a high viscosity liquid base in medical devices.
  • the porous liquid-conducting liquid 21 includes a main body part 2141 and a boss part 2142.
  • a step 2143 is formed between the main body part 2141 and the boss part 2142.
  • the porous liquid-conducting liquid 21 is fixed to the interior of the bracket 30 by means of the step 2143. in the cavity.
  • the atomization surface 212 is provided on the boss portion 2142, and the liquid suction surface is provided on the main body portion 2141.
  • the surface area of the atomization surface 212 is smaller than the surface area of the liquid suction surface.
  • a part of the side surface 213 of the boss part 2142 is arranged on the same plane as the side surface 213 of the main body part 2141.
  • the other part of the side surface 213 of the boss part 2142 is set as four arc-shaped curved surfaces, and the four arc-shaped curved surfaces are respectively located on the porous guide. at the four corners of liquid 21.
  • the atomization surface 212 can also be provided on the main body part 2141, and the liquid suction surface can also be provided on the boss part 2142.
  • the porous liquid-conducting liquid 21 can also be directly provided with protruding structures on its side 213 for fixation.
  • the porous liquid-conducting liquid 21 can be provided with a recessed structure on the liquid-absorbing surface 211 as needed, so as to utilize the recessed structure to store a portion of the liquid matrix.
  • the heating element 22 is printed on the atomization surface 212 of the porous liquid-conducting liquid 21 in the form of heating tracks.
  • the atomization efficiency will be significantly improved by printing heating tracks on the flat porous liquid conductor through the back film.
  • the heating power of the heating track printed on the rear film is usually 6.5W, and the TPM (amount of smoke per puff) of the atomizer 100 is 6mg/puff; while the heating wire is embedded in the ceramic atomizing core.
  • the heating power of the heating element is usually 9W ⁇ 10W, and the TPM (amount of smoke per puff) of the atomizer 100 is 3.5mg/puff.
  • the cylindrical ceramic atomizing core needs to be covered with cotton, resulting in poor ventilation effect of the atomizing core assembly.
  • the heating tracks can be designed in various forms.
  • the heating tracks are evenly distributed on the atomization surface 212, which is beneficial to balancing the atomization efficiency everywhere on the atomization surface 212, and avoids the atomization rate being too fast caused by the dense local heating tracks.
  • the liquid matrix is not supplied in time and causes dry burning.
  • the heating track is connected by several identical or similar base units.
  • the heating track is connected by two arched units, and the two arched units are symmetrically arranged about the central axis of the atomization surface 212, as shown in FIG. 4a.
  • the heating track includes three connected base units, namely a first base unit, a second base unit and a third base unit, wherein the first and last ends of the second base unit are respectively connected to the first base unit and the third base unit.
  • the third base unit, the first base unit and the third base unit are symmetrically arranged on both sides of the second unit, and the central axis of the second base unit coincides with the central axis of the atomization surface 212 .
  • the shape of the third base unit may be different from the shapes of the first base unit and the second base unit, as shown in FIG. 4b and FIG. 4c.
  • the heating element 22 also includes a first electrical connection portion 23 and a second electrical connection portion 24 connected at both ends of the heating track.
  • the first electrical connection portion 23 and the second electrical connection portion 24 are configured in a rectangular shape.
  • the heating track is connected to the first electrical connection portion.
  • the middle position of the electrical connection part 23 or the second electrical connection part 24 , or the heating track is connected to the side of the first electrical connection part 23 or the second electrical connection part 24 .
  • the first electrical connection part 23 and the second electrical connection part 24 are arranged symmetrically with respect to the central axis of the atomization surface 212 .
  • the heating element 22 of the atomization core assembly 20 is connected to the threaded electrode on the connection base 12 through conductive leads.
  • the above-mentioned porous conductive liquid 21 printed with heating tracks is connected to the threaded electrode through conductive leads.
  • the conductive lead 40 is connected to the end of the heating element 22 , and a part of the conductive lead 40 is embedded inside the porous conductive liquid 21 , thereby realizing the connection between the conductive lead 40 and the heating element 22
  • the connection between the fixed and conductive leads 40 The remaining part is led out from the side of the porous liquid guide 21 and extends longitudinally in a manner parallel to the atomization surface 212 of the porous liquid guide 21, which is beneficial to the fixed installation of the atomizing core assembly 20 as a whole.
  • the conductive lead 40 includes a first conductive lead 41 and a second conductive lead 42.
  • the first conductive lead 41 and the second conductive lead 42 are connected to the first electrical connection part 23 and the second electrical connection part 24 respectively.
  • the atomizer core assembly 20 is fixed in the inner cavity of the bracket 30 along its length direction, and both the first conductive lead 41 and the second conductive lead 42 extend along the length direction of the porous liquid conductor 21 .
  • the first conductive lead 41 is welded to the first electrical connection part 23
  • the second conductive lead 42 is welded to the second electrical connection part 24 .
  • the first electrical connection part 23 and the second electrical connection part 24 have a large enough area, so that the first conductive lead 41 and the second conductive lead 42 have a sufficiently large welding surface.
  • the atomization surface 212 should have a large surface area, which will result in a large volume of the entire porous liquid-conducting liquid 21, which is not It is advantageous to be installed in the current cylindrical atomizer 100 which has a smaller overall volume.
  • the first electrical connection part 23 and the second electrical connection part 24 are mainly for electrical conduction. When the areas of the first electrical connection part 23 and the second electrical connection part 24 increase, the first electrical connection part 23 and the second electrical connection part 24 The portion 24 will generate more heat waste, making it inconvenient to improve the atomization efficiency of the atomizer 100 .
  • two lead grooves are provided on the porous liquid guide 21, namely the first lead groove 251 and second lead slot 252.
  • the first conductive lead 41 is fixed in the first lead groove 251
  • the second conductive lead 42 is fixed in the second lead groove 252 .
  • the lead groove is provided on the atomization surface 212 and penetrates along the length direction of the porous liquid-conducting liquid 21 to the side surface 213 of the porous liquid-conducting liquid 21 .
  • the lead groove is also disposed on the boss portion 2142.
  • the first lead groove 251 and the second lead groove 252 may be arranged in parallel, and the first lead groove 251 and the second lead groove 252 are arranged symmetrically with respect to the central axis of the atomization surface 212 .
  • the first lead slot 251 and the second lead slot 252 may also be arranged non-parallel.
  • the first lead slot 251 extends to one of the side surfaces 213, and the second lead slot 251 extends to one of the side surfaces 213.
  • the groove 252 extends to the other side 213 .
  • the depth and width of the first lead groove 251 and the second lead groove 252 only need to be configured to accommodate the conductive leads 40 .
  • the first electrical connection part 23 is configured to cover at least part of the open end of the first lead trough 251
  • the second electrical connection part 24 is configured to cover the open end of the second lead trough 252 At least part of the end.
  • the first electrical connection part 23 is configured to contact the outer surface of the first conductive lead 41 along the depth direction of the first lead groove 251
  • the second electrical connection part 24 is configured to contact the outer surface of the first conductive lead 41 along the depth direction of the second lead groove 252 .
  • the first electrical connection part 23 since the first electrical connection part 23 covers at least part of the outer surface of the first conductive lead 41, the first electrical connection part 23 maintains stable electrical contact with the first conductive lead 41; because the second electrical connection part 24 covers the second At least part of the outer surface of the conductive lead 42 enables the second electrical connection portion 24 to maintain stable electrical contact with the second conductive lead 42 .
  • the first electrical connection part 23 covers the first conductive lead 41 with sufficient length, the first conductive lead 41 can be stably received inside the first lead groove 251 , and the first electrical connection part 23 and the first conductive lead 41 With a larger electrical contact area, the first conductive lead 41 can establish a stable electrical connection state with the first electrical connection portion 23 .
  • the second electrical connection part 24 covers the second conductive lead 42 with a sufficient length, the second conductive lead 42 can be stably received inside the second lead groove 252 , and the second electrical connection part 24 and the second The conductive lead 42 has a large electrical contact area, and a stable electrical connection state can be established between the second conductive lead 42 and the second electrical connection portion 24 .
  • first groove 261 and a second groove 262 are also provided on the porous liquid guide 21 , wherein the first groove 261 is connected with the first lead groove 251 , and the second groove 262 is connected with the second lead groove 252 Connected.
  • the first electrical connection part 23 includes a first part and a third part. The first part of the first electrical connection part 23 covers at least part of the open end of the first lead groove 251 , and the second part of the first electrical connection part 23 is accommodated in In the first groove 261, the third portion of the first electrical connection portion 23 can abut against the outer surface of the first conductive lead 41 along the width direction of the first lead groove 251, so that the first conductive lead 41 is fixed on the first conductive lead 41.
  • the second electrical connection part 24 When inside a lead slot 251, it is subject to contact along the depth direction and width direction of the first lead slot 251 at the same time, so no displacement can occur in the first lead slot 251.
  • the second electrical connection part 24 includes a second part and a fourth part, and the second part of the second electrical connection part 24 covers the first lead groove 251 At least partially the open end, the fourth portion of the second electrical connection portion 24 is received in the second groove 262 , so that the second portion of the second electrical connection portion 24 can abut against the second lead groove 252 along the width direction.
  • the outer surface of the second conductive lead 42 is such that when the second conductive lead 42 is fixed in the second lead groove 252, it is abutted along the depth direction and the width direction of the second lead groove 252. Displacement occurs in groove 252.
  • the length of the first part of the first electrical connection part 23 may be appropriately reduced.
  • the first groove 261 can be provided alone on one side of the first lead groove 251 , and the first groove 261 and the first lead groove 251 can be combined to form a T-shaped groove, or the central axis of the first groove 261 can be aligned with the first lead groove 251 The central axis is set at a certain angle.
  • the first groove 261 can also be provided on both sides of the first lead groove 251 , and the first groove 261 and the first lead groove 251 are combined to form a cross-shaped groove, or the central axis of the first groove 261 It intersects with the central axis of the first lead groove 251 in an X shape.
  • the depth of the first groove 261 is less than the depth of the first lead groove 251 , and the first groove 261 is disposed close to the end of the first lead groove 251 , which is beneficial to reducing the overall surface area of the first electrical connection part 23 , thereby reducing the The heat loss generated by the first electrical connection 23 .
  • the length of the second part of the second electrical connection part 24 may be appropriately reduced.
  • the second groove 262 may be provided alone on one side of the second lead groove 252 , and the second groove 262 and the first lead groove 251 may be combined to form a T-shaped groove, or the central axis of the second groove 262 may be aligned with the second lead groove 252 The central axis is set at a certain angle.
  • the second groove 262 can also be provided on both sides of the second lead groove 252 , and the second groove 262 and the second lead groove 252 are combined to form a cross-shaped groove, or the central axis of the second groove 262 It intersects with the central axis of the second lead groove 252 in an X shape.
  • the depth of the second groove 262 is less than the depth of the second lead groove 252 , and the second groove 262 is disposed close to the end of the second lead groove 252 , which is beneficial to reducing the overall surface area of the second electrical connection part 24 , thereby reducing the overall surface area of the second electrical connection part 24 .
  • the heat loss generated by the second electrical connection 24 is beneficial to reducing the overall surface area of the second electrical connection part 24 , thereby reducing the overall surface area of the second electrical connection part 24 .
  • the size of the end opening of the first groove 261 or the second groove 262 is larger than the size of the groove bottom, which is beneficial to filling the second part of the first electrical connection part 23 or the fourth part of the second electrical connection part 24 .
  • the size of the open end of the first lead slot 251 or the second lead slot 252 is larger than the size of the slot bottom, which is beneficial to the fixing operation of the conductive lead in the lead slot.
  • the depth of the first groove 261 or the second groove 262 is 0.3mm
  • the end opening of the first groove 261 or the second groove 262 located on the atomization surface 212 is provided with a chamfer, which facilitates the molding preparation of the porous liquid conducting liquid 21 and facilitates the connection of the first electrical connection part 23
  • the two parts or the second part of the second electrical connection part 24 is filled inside the first groove 261 or the second groove 262 .
  • the depth of the first lead groove 251 or the second lead groove 252 is 0.5 mm.
  • the bottom of the first lead groove 251 or the second lead groove 252 is set in a semicircular arc shape with a radius of 0.3 mm.
  • the size of the open end of the lead groove 252 is 0.3mm ⁇ 1.5mm.
  • the outer diameter of the conductive lead placed in the first lead groove 251 or the second lead groove 252 is a nickel wire of 0.3 mm. It can be understood that when the outer diameter of the conductive lead changes, the size and depth of the end opening of the first lead groove 251 or the second lead groove 252 and the radius of the semi-circular arc at the bottom of the groove are adjusted accordingly, so that A section of the conductive lead can be completely accommodated in the lead groove.
  • the depths of the first groove 261 and the second groove 262 are configured such that the second portion of the first electrical connection portion 23 or the second portion of the second electrical connection portion 24 can form contact with the conductive lead along the width direction of the lead groove. .
  • the length of the atomization surface 212 of the porous liquid-conducting liquid 21 is 5 mm, the width is 4 mm, the width of the heating track is 0.3 mm, and the thickness is 0.1 mm.
  • the width of the heating track extending on the atomization surface 212 can be optimized and designed according to the atomization efficiency.
  • Another embodiment of the present application also provides a method for preparing the above-mentioned atomization core assembly, including the following steps:
  • the first step is to prepare the ceramic matrix: ceramic powder, sintering agent, organic additives and pore-forming agent are mixed to obtain a ceramic slurry.
  • the ceramic slurry is injection molded to obtain a ceramic green body.
  • the ceramic green body is degreased and sintered to obtain porous ceramics.
  • the ceramic powder includes at least one of alumina, zirconia, silicon oxide, silicon nitride, cordierite or mullite;
  • the sintering agent includes calcium carbonate, magnesium oxide, lanthanum oxide, barium oxide, zinc oxide and At least one of lithium oxide;
  • the pore-forming agent includes at least one of mineral wax, white wax, beeswax and ozokerite; in order to promote the uniformity of the ceramic slurry mixing, organic additives are added, the organic additives include fatty acids At least one of dispersant and acrylic resin dispersant; based on the weight percentage of ceramic slurry, the mass percentage of ceramic powder accounts for 30% to 50%, the weight percentage of sintering agent accounts for 15% to 30%, and the pore-forming agent The weight percentage accounts for 20% to 40%.
  • the injection pressure range of the injection molding machine is 0.5MPa ⁇ 5MPa
  • the injection temperature range is 50°C ⁇ 100°C.
  • the second step is to place the conductive lead: place the first conductive lead in the first lead slot 251, Place the second conductive lead 42 in the second lead slot 252;
  • the third step is to print the heating track: the resistance paste is printed on the back film to obtain a heating track of a specific shape, and the resistance paste of the first electrical connection part 23 is printed on the corresponding area of the atomized surface 212 and the conductive paste is printed on the corresponding area.
  • a part is filled into the first lead groove 251 and the second lead groove 252, and a part of the first conductive lead and the second conductive lead is embedded in the porous conductive liquid through curing, and the other part of the first conductive lead and the second conductive lead is made
  • a part extends in a direction substantially parallel to the atomization surface and away from the porous liquid conductor.
  • a first groove and a second groove are provided on the porous conductive liquid, wherein the first groove is connected to the first lead groove, and the second groove is connected to the second lead groove.
  • part of the conductive paste is filled into the first groove and the second groove respectively, so that the first electrical connection part 23 maintains fixed contact with the first conductive lead 41; the second electrical connection part 24 and the second conductive lead 42 Maintain constant contact.
  • the first lead groove and the second lead groove are located on the atomization surface. is greater than the width of the groove bottom; when the porous liquid-conducting liquid is further provided with a first groove and a second groove, the width of the groove opening of the first groove and the second groove on the atomization surface is greater than the width of the groove bottom.
  • the fourth step is sintering: the heating tracks, conductive leads and ceramics are integrated and sintered to obtain the above-mentioned atomization core assembly.
  • the conductive leads 40 only need to be placed in the lead grooves, and the fixation of the conductive leads is completed during the subsequent printing and filling of resistive paste.
  • the combination of the conductive lead 40 with the first electrical connection part 23 and the second electrical connection part 24 is more stable, and the welding process can be omitted. , which is conducive to realizing the automated molding process of the atomizing core assembly 20.
  • the above-mentioned atomizing core assembly 20 is fixed in the inner cavity of the generally tubular bracket 30 along the length direction of the atomizing core assembly 20 by means of a supporting assembly.
  • the support assembly includes a sealing element 51 , an upper support frame 52 and a lower support frame 53 .
  • the sealing element 51 is provided on one side surrounding the liquid-absorbing surface 211 of the porous liquid-conducting liquid 21.
  • the upper support frame 52 and the lower support frame 53 are arranged around one side of the atomization surface 212 of the porous liquid-conducting liquid 21 in a mutually inserted manner.
  • a part of the upper support frame 52 abuts between the upper end of the sealing element 51 and the inner wall of the bracket 30 , and a part of the upper support frame 52 is nested on the sealing element 51 .
  • a part of the lower support frame 53 abuts between the lower end of the sealing element 51 and the inner wall of the bracket 30 , and a part of the lower support frame 53 is nested on the sealing element 51 .
  • the sealing element 51 wraps around the periphery of the liquid-absorbing surface 211 and most of the side surfaces 213 of the porous liquid-conducting surface 21 , and the two side walls of the sealing element 51 abut on both sides of the boss portion 2142 of the porous liquid-conducting surface 21 .
  • the sealing element 51 is also provided with a first opening 511 through which the liquid-absorbing surface 211 of the porous liquid-conducting liquid 21 is exposed.
  • a liquid inlet 31 is provided on one side of the bracket 30 .
  • the first opening 511 of the sealing element 51 is disposed facing the liquid inlet 31 on the bracket 30 , and the size of the first opening 511 on the sealing element 51 is the same as the size of the liquid inlet 31 .
  • the size is basically the same.
  • the wall surface around the first opening 511 of the sealing element 51 is convexly arranged relative to the liquid suction surface 211 of the porous liquid-conducting chamber 21 , so the sealing element 51 and the bracket 30 jointly define an open liquid-conducting chamber 32 , and the inside of the liquid-storage chamber 13
  • the liquid matrix enters through the open end of the liquid-conducting chamber 32, and the liquid-absorbing surface 211 of the porous liquid-conducting chamber 21 is in direct contact with the matrix inside the liquid-conducting chamber 32, so that the liquid-absorbing surface 211 of the porous liquid-conducting chamber 21 is in a relatively stable position. in a liquid supply environment.
  • a second opening 521 is provided at the end of the upper support frame 52, and a third opening 531 is provided at the end of the lower support frame 53.
  • the second opening 521 and the third opening 531 are arranged facing each other, and the second opening 521 and A connected air flow channel 60 is formed between the third openings 531 , and the atomization surface 212 of the porous liquid-conducting liquid 21 is disposed on one side of the air flow channel 60 .
  • the lower end surface of the lower support frame 53 is in contact with the inner annular wall of the connecting seat 12.
  • An air inlet 121 is provided on the side wall of the connecting seat 12.
  • the external air flow is introduced into the inner cavity of the connecting seat 12 through the air inlet 121. , and is introduced into the air flow channel 60 through the third opening 531 of the lower support frame 53, and then reaches the atomization surface 212.
  • the aerosol generated by the heating element 22 on the atomization surface 212 reaches the upper support frame 52 through the air flow channel.
  • the second opening 521 The second opening 521 of the upper support frame 52 is connected with the inner cavity of the bracket 30 .
  • the air outlet channel 14 can be defined by the inner cavity of the bracket 30 , that is, the bracket 30 extends a sufficient length longitudinally along the housing 10 , and the upper end of the bracket 30 extends into the inner cavity of the suction nozzle 11 .
  • an air outlet pipe is connected to one end of the bracket 30 .
  • the air outlet pipe can be defined by the inner wall of the housing 10 .
  • the air outlet pipe can also be provided separately and connected to the branch.
  • the inner cavity of the air outlet pipe is connected with the inner cavity of the bracket 30 to form an air outlet channel 14.
  • the aerosol is exported through the second opening of the upper support frame 52 and then enters the air outlet channel 14, and is guided to the mouthpiece 110 through the air outlet channel 14 to be inhaled by the user.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

一种雾化芯组件及其制备方法以及气溶胶生成装置，雾化芯组件（20）包括多孔导液体（21），多孔导液体（21）被配置为吸收和传递液体基质；多孔导液体（21）具有纵向相对的吸液面（211）和雾化面（212），以及连接在吸液面（211）和雾化面（212）之间的侧面（213）；加热元件（22），配置成电阻加热轨迹并在雾化面（213）上延伸；导电引线（40），连接在加热元件（22）的两端，导电引线（40）的一部分嵌入多孔导液体（21）的内部，另一部分自侧面（213）沿基本平行于雾化面（212）的方向远离多孔导液体（21）延伸。雾化芯组件（20）整体更适合用在圆柱形或者类似圆柱状的雾化器（100）或者气溶胶生成装置中进行应用。

Description

雾化芯组件及其制备方法、气溶胶生成装置
本申请要求于2022年04月30日提交中国专利局，申请号为202210476739.4，名称为“雾化芯组件及其制备方法、气溶胶生成装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及气溶胶生成装置领域，尤其涉及一种雾化芯组件及其制备方法以及气溶胶生成装置。
背景技术
气溶胶生成装置包括雾化器，雾化器的核心组件为雾化芯组件，雾化芯组件将液体基质雾化生成气溶胶。
已知技术中采用陶瓷材料制备而成的陶瓷雾化芯在气溶胶生成装置中应用广泛。陶瓷雾化芯主要包括两类，第一类为大致呈块状的陶瓷导液体，在陶瓷导液体的外表面上通过印刷发热线路，在发热线路的两侧印刷银浆从而形成导电电极，或者是在陶瓷导液体上嵌入发热钢网，在发热网的两端连接有导电引线，第二类为大致呈圆管状的陶瓷导液体，在其陶瓷导液体的内壁上固定有发热网或者发热丝，在发热元件的两侧连接有导电引线。第一类陶瓷雾化芯由于其整体厚度较大，适合横向固定在扁状的雾化器内部，第二类陶瓷雾化芯主要适用于圆柱状的雾化器内，但是圆柱状的陶瓷雾化芯普遍需要使用包棉工艺，从而导致其组装工艺的难度较高。而第一类块状陶瓷雾化芯由于其尺寸以及引线的固定问题，难以在圆柱状的雾化器或者气溶胶生成装置内得到应用。
申请内容
为了解决已知技术中的非圆管状的陶瓷雾化芯难以在圆柱状或者类似圆柱状的雾化器中应用的问题，本申请实施例提供一种雾化芯组件，包括：
多孔导液体，被配置为吸收和传递液体基质；所述多孔导液体具有 相对的吸液面和雾化面，以及连接在所述吸液面和雾化面之间的侧面；
加热元件，配置成加热部分所述液体基质，所述加热元件包括电在所述雾化面上延伸的电阻加热轨迹；
导电引线，连接在所述加热元件的端部，所述导电引线的一部分嵌入所述多孔导液体的内部，另一部分自所述侧面沿基本平行于所述雾化面的方向远离所述多孔导液体延伸。
在一些实施例中，所述导电引线包括第一导电引线和第二导电引线，所述第一导电引线和第二导电引线自所述多孔导液体同一侧的侧面引出。
在一些实施例中，所述多孔导液体上设置有第一引线槽和第二引线槽，所述第一导电引线容置在所述第一引线槽内，所述第二导电引线容置在所述第二引线槽内。
在一些实施例中，所述加热元件还包括连接于所述加热轨迹两端的第一电连接部和第二电连接部，所述第一电连接部构造成与所述第一导电引线的至少部分表面相接触并被配置为固定所述第一导电引线，所述第二电连接部构造成与所述第二导电引线的至少部分表面相接触并被配置为固定所述第二导电引线。
在一些实施例中，所述第一电连接部的至少一部分从所述雾化面填充至所述第一引线槽内并结合在所述第一导电引线的周围，所述第二电连接部的至少一部分从所述雾化面填充至所述第二引线槽内并结合在所述第二导电引线的周围。
在一些实施例中，所述多孔导液体上还设置有第一凹槽和第二凹槽，所述第一凹槽与所述第一引线槽相连通，所述第二凹槽与所述第二引线槽相连通。
在一些实施例中，所述第一电连接部的一部分容置在所述第一凹槽内并且被配置为对所述第一导电引线进行固定；所述第二电连接部的一部分容置在所述第二凹槽内并且被配置为对所述第二导电引线进行固定。
在一些实施例中，所述第一凹槽自雾化面的凹陷深度小于所述第一 引线槽的凹陷深度，所述第二凹槽自雾化面的凹陷深度小于所述第二引线槽的凹陷深度。
在一些实施例中，所述第一引线槽和所述第二引线槽平行设置。
在一些实施例中，所述第一凹槽和所述第一引线槽组合形成T形槽；或者，所述第二凹槽和所述第二引线槽组合形成T形槽。
在一些实施例中，所述多孔导液体包括沿厚度方向布置的主体部和凸台部，所述主体部和所述凸台部之间形成台阶，所述雾化面设置在所述凸台部上。
在一些实施例中，所述第一引线槽和所述第二引线槽均设置在所述凸台部上。
本申请实施例还提供一种上述雾化芯组件的制备方法，所述制备方法包括：制备多孔导液体，并在所述多孔导液体的雾化面上成型有凹陷的第一引线槽和第二引线槽；将第一导电引线放置入所述第一引线槽内，将第二导电引线放置入所述第二引线槽内；将导电浆料结合于所述多孔导液体的雾化面形成电阻加热轨迹，并且使导电浆料的一部分填充于所述第一引线槽和第二引线槽内，通过固化使第一导电引线和第二导电引线的一部分嵌入至多孔导液体内，二者的另一部分沿基本平行于所述雾化面的方向远离所述多孔导液体延伸。
在一些实施例中，所述多孔导液体上设置有第一凹槽和第二凹槽，其中所述第一凹槽与第一引线槽相连通，所述第二凹槽与第二引线槽相连通；导电浆料的一部分填充到所述第一凹槽和第二凹槽中。
在一些实施例中，所述第一引线槽和第二引线槽位于雾化面上槽口的宽度大于槽底的宽度；或者所述第一凹槽和第二凹槽位于雾化面上槽口的宽度大于槽底的宽度。
本申请实施例还提供一种气溶胶生成装置，包括壳体和位于壳体中的储液腔，所述储液腔被配置为储存液体基质，所述壳体内设置有上述雾化芯组件，所述雾化芯组件被配置为将液体基质雾化生成气溶胶；其中所述雾化芯组件包括雾化面，所述雾化面的延伸方向与所述壳体的纵向平行设置。
本申请的有益效果是，由于加热元件配置成电阻加热轨迹在雾化面上延伸，相对于嵌入式的发热钢网，加热元件的雾化效率更高；进一步地，雾化芯组件的加热元件两端连接的导电引线的一部分嵌入多孔导液体的内部，另一部分自多孔导液体的侧面沿基本平行于多孔导液体的雾化面的方向延伸固定，有利于雾化芯组件整体沿与其雾化面平行的向固定在雾化器的内部，使其整体更适合用在圆柱形或者类似圆柱状的雾化器进行固定，同时加热轨迹与导电引线组合的方式有利于在圆柱形或者类似圆柱形的雾化器中进行应用。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请实施例提供的气溶胶生成装置的结构图；
图2是本申请实施例提供的雾化器的剖面图；
图3是本申请实施例提供的雾化芯组件的立体图；
图4a是本申请实施例提供的加热元件的第一种发热线路图；
图4b是本申请实施例提供的加热元件的第二种发热线路图；
图4c是本申请实施例提供的加热元件的第三种发热线路图；
图5是本申请实施例提供的多孔导液体的立体图；
图6是本申请实施例提供的多孔导液体放置导电引线后的立体图；
图7是本申请实施例提供的又一视角的雾化芯组件的立体图；
图8是本申请实施例提供的雾化器的爆炸图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。
需要说明，本申请实施例中所有方向性指示(诸如上、下、左、右、 前、后、水平、竖直等)仅用来解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变，所述的“连接”可以是直接连接，也可以是间接连接，所述的“设置”、“设置于”、“设于”可以是直接设于，也可以是间接设于。
另外，本申请中如涉及“第一”、“第二”等的描述仅用来描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
本申请提供一种气溶胶生成装置，该气溶胶生成装置包括雾化器以及电源组件，电源组件为雾化器提供电力驱动，雾化器将其内部储存的液体基质雾化生成气溶胶。气溶胶生成装置根据其储存的液体基质的不同，气溶胶生成装置可以分为电子烟以及医疗器械装置。电子烟内部储存的液体基质包括尼古丁制剂、甘油、丙二醇、香精香料、风味组分等，用户吸食电子烟产生的气溶胶主要满足对尼古丁或者风味组分的需求。作为医疗器械装置，其内部储存的液体基质包括活性功能组分、甘油、丙二醇等，用户吸食此类装置产生的气溶胶主要用于治疗呼吸系统类疾病，或者通过肺部吸食某种药用活性成分。本申请提供的相关实施方案都可以应用在上述两类装置中，在此不做限定。
雾化器100和电源组件200可以收容于一个壳体内部，形成一个体积较小的方便携带的一次性气溶胶生成装置。雾化器100和电源组件200也可以配置为两个独立的组件，两个组件之间通过可分离的连接方式进行连接，形成组合式气溶胶生成装置。在其中的一个示例中，电源组件的壳体的一部分内腔界定形成收容腔，雾化器能够自电源组件的壳体的一端插入并且雾化器的至少一部分表面能够保持在收容腔的内部。两个组件之间可以通过磁力吸附或者卡扣连接的方式，使得两个组件之间形成稳定的连接。在另外的示例中，参考图1所示，在雾化器100的端部设置有螺纹套，在电源组件200的端部设置有螺纹槽，两个组件之间进行螺纹连接。在雾化器100的连接端部以及电源组件200的连接端部都 设置有电连接组件，使得两个组件进行连接之后，两个组件之间的电路保持连通。关于电源组件200的内部结构，可以设置为已知技术中的常见形式，例如在其内部设置控制模块以及充电模块等，在本申请的实施方案部分不做具体说明。
如下部分主要以圆柱形的雾化器100的结构为例，对雾化器100内部的结构进行说明。参考图2所示，雾化器100包括壳体10，壳体10包括纵向相对的第一端和第二端，第一端设置有吸嘴11，第二端设置有连接座12。吸嘴11包括纵向贯通的吸嘴口110，气溶胶经吸嘴口110进入用户的嘴部。吸嘴11一般采用安全级别较高的塑胶材料制备，例如PPSU，从而提升用户吸嘴11可以设置为大致呈鸭嘴状的扁吸嘴，壳体10的端部敞口设置，将吸嘴11密封套接在壳体10的敞口端；在可选择的示例中，吸嘴11可以采用通用的圆柱形吸嘴，在壳体10的一端设置有插接口，将圆柱形吸嘴插接在壳体10的插接口上。壳体10的第二端设置为敞口端，雾化器100内部的其它部件通过该敞口端安装在壳体10的内部，在壳体10的第二端的敞口处设置有连接座12，该连接座12一方面被配置为对雾化器100内部的其它组件提供纵向支撑，另一方面连接座12的一部分构造为螺纹电极，该螺纹电极旋入电源组件的螺纹槽内，从而连通雾化器100和电源组件200。
壳体10的内部一部分空间设置为储液腔13，储液腔13被配置为储存液体基质。在壳体10的内部设置有雾化组件，雾化组件包括雾化芯组件20，储液腔13内部的液体基质能够流向雾化芯组件20并被雾化芯组件20雾化生成气溶胶。雾化组件还包括被配置为支撑雾化芯组件20的支架30，在圆柱形或者类似圆柱形的雾化器100中，其内部容置的支架30一般构造为圆管状或者类圆管状。
在本申请的实施例中提供一种结构新颖的大致呈平板状的陶瓷雾化芯组件20，其能够固定在大致呈管状或者类管状的支架30的内腔中。具体而言，雾化芯组件20包括多孔导液体21以及加热元件22，加热元件22结合在多孔导液体21上。参考图3所示至图7所示，多孔导液体21大致呈平板状结构，其具有相对设置的吸液面211、雾化面212以及 连接在吸液面211和雾化面212之间四个侧面213。为了便于将多孔导液体21固定在支架30的内部，多孔导液体21厚度较薄。
进一步地，参考图3所示，多孔导液体21包括相互垂直的长度方向l、宽度方向w和厚度方向h，多孔导液体21的侧面213沿厚度方向延伸的长度小于吸液面211或者雾化面212沿宽度方向延伸的长度。
其中加热元件22结合在雾化面212上，雾化面212与吸液面211相对设置，储液腔13内部的液体基质构造成能够流向吸液面211，并经吸液面211传递给雾化面上的加热元件22，可理解的是由于多孔导液体21的厚度较薄，因而液体基质经多孔导液体21的吸液面211传递至雾化面212的路径较短，即使是粘度较高的液体基质也能够在较短的时间内传递给加热元件22，因而适合应用于医疗器械类液体基质粘度较高的雾化器100中。
进一步地，由于平板状的多孔导液体21的厚度较小，因而其整体体积较小，适合沿支架30的纵向固定在支架30的内腔中。在其中的一个示例中，多孔导液体21包括主体部2141以及凸台部2142，主体部2141与凸台部2142之间形成台阶2143，多孔导液体21借助于该台阶2143固定于支架30的内腔中。其中，雾化面212设置在凸台部2142上，吸液面设置在主体部2141上。雾化面212的表面积小于吸液面的表面积。凸台部2142的一部分侧面213与主体部2141的侧面213设置在一个平面上，凸台部2142的另一部分侧面213设置为四个圆弧形曲面，并且四个圆弧形曲面分别位于多孔导液体21的四角处。可理解的是，雾化面212也可以设置在主体部2141上，吸液面也可以设置在凸台部2142上。在其它的示例中，多孔导液体21也可以在其侧面213上直接设置凸起结构进行固定。在另外的示例中，多孔导液体21可以根据需要在吸液面211上设置凹陷结构，以利用该凹陷结构储存一部分的液体基质。
加热元件22以加热轨迹的方式印刷在多孔导液体21的雾化面212上。相对于圆柱形的陶瓷雾化芯中通过嵌入发热丝的设计结构而言，在平板状的多孔导液体上通过后膜印刷加热轨迹的雾化效率会显著提升， 具体而言，后膜印刷的加热轨迹的加热功率通常为6.5W，雾化器100的TPM(每口抽吸的烟雾量)为6mg/puff；而在陶瓷雾化芯上嵌入发热丝的方式中，加热元件的加热功率通常为9W～10W，雾化器100的TPM(每口抽吸的烟雾量)为3.5mg/puff。并且圆柱形的陶瓷雾化芯需要包棉设置，导致雾化芯组件的换气效果不佳。
进一步地，加热轨迹可以设计为多种形态，加热轨迹均匀分布在雾化面212上，有利于均衡雾化面212上各处的雾化效率，避免局部加热轨迹密集造成雾化速率过快而液体基质来不及供应而导致干烧。
参考图4a至图4c所示，加热轨迹由若干个相同或相似的基体单元连接而成。在其中的一个示例中，加热轨迹由两个拱形单元连接而成，两个拱形单元关于雾化面212的中轴线对称设置，参考图4a所示。在另外的一个示例中，加热轨迹包括三个基体单元连接而成，分别为第一基体单元、第二基体单元和第三基体单元，其中第二基体单元的首尾端分别连接第一基体单元和第三基体单元，第一基体单元和第三基体单元对称设置在第二单元的两侧，第二基体单元的中心轴与雾化面212的中心轴线相重合。其中，第三基体单元的形状可以与第一基体单元、第二基体单元的形状不相同，参考图4b和图4c所示。
加热元件22还包括连接在加热轨迹的两端的第一电连接部23和第二电连接部24，第一电连接部23和第二电连接部24构造为矩形形状，加热轨迹连接在第一电连接部23或者第二电连接部24的中间位置，或者是加热轨迹连接在第一电连接部23或者第二电连接部24的侧边上。第一电连接部23和第二电连接部24关于雾化面212的中心轴线对称设置。
在圆柱形的雾化器100中，雾化芯组件20的加热元件22与连接座12上的螺纹电极通过导电引线进行连接。在本申请提供的实施例中，上述印刷有加热轨迹的多孔导液体21通过导电引线与螺纹电极进行连接。具体地，参考图2、图3以及图6所示，导电引线40连接在加热元件22的端部，并且导电引线40的一部分嵌入多孔导液体21的内部，从而实现导电引线40与加热元件22之间的连接固定，并且导电引线40的 余下部分自多孔导液体21的侧面引出之后保持平行于多孔导液体21的雾化面212平行的方式纵向延伸，有利于雾化芯组件20整体的固定安装。
具体地，导电引线40包括第一导电引线41和第二导电引线42，第一导电引线41和第二导电引线42分别与第一电连接部23和第二电连接部24相连接。在圆柱形的雾化器100中，雾化芯组件20沿其长度方向固定在支架30的内腔中，第一导电引线41和第二导电引线42均沿着多孔导液体21的长度方向延伸。
在其中的一个示例中，第一导电引线41焊接在第一电连接部23上，第二导电引线42焊接在第二电连接部24上，为了便于导电引线40能够与加热元件22之间形成的电连接，第一电连接部23和第二电连接部24具有足够大的面积，使得第一导电引线41和第二导电引线42具有足够大的焊接面。可理解的是，当第一电连接部23和第二电连接部24的面积较大时，雾化面212应当具有较大的表面积，从而会导致整个多孔导液体21的体积较大，不利于安装在目前整体体积较小的圆柱形雾化器100中。并且第一电连接部23和第二电连接部24主要是为了导电，当第一电连接部23和第二电连接部24的面积增大时，第一电连接部23和第二电连接部24会产生较多的热量浪费，从而不便于提高雾化器100的雾化效率。
为了优化雾化芯组件20整体结构，在本申请提供的优选的实施方案中，参考图5至图7所示，在多孔导液体21上设置有两个引线槽，分别为第一引线槽251和第二引线槽252。第一导电引线41固定在第一引线槽251内，第二导电引线42固定在第二引线槽252内。该引线槽设置在雾化面212上并沿多孔导液体21的长度方向贯穿至多孔导液体21的侧面213上设置。当雾化面212设置于多孔导液体21的凸台部2142上时，引线槽也设置于凸台部2142上。第一引线槽251和第二引线槽252可以平行设置，并且第一引线槽251和第二引线槽252关于雾化面212的中心轴线对称设置。第一引线槽251和第二引线槽252也可以非平行设置，例如第一引线槽251延伸至其中一个侧面213上，第二引线 槽252延伸至另外一个侧面213上。第一引线槽251和第二引线槽252的深度和宽度配置成能够容纳导电引线40即可。
为了便于导电引线40在引线槽内进行固定，第一电连接部23构造成覆盖第一引线槽251的敞口端的至少部分，第二电连接部24构造成覆盖第二引线槽252的敞口端的至少部分。第一电连接部23被配置为沿第一引线槽251的深度方向抵接在第一导电引线41的外表面上，第二电连接部24被配置为沿第二引线槽252的深度方向抵接在第二导电引线42的外表面上。同时，由于第一电连接部23覆盖第一导电引线41的至少部分外表面，使得第一电连接部23与第一导电引线41保持稳定的电接触；由于第二电连接部24覆盖第二导电引线42的至少部分外表面，使得第二电连接部24与第二导电引线42保持稳定的电接触。当第一电连接部23覆盖第一导电引线41具有足够的长度时，第一导电引线41能够稳定地收容于第一引线槽251的内部，并且第一电连接部23与第一导电引线41具有较大的电接触面积，第一导电引线41能够与第一电连接部23之间建立稳定的电连接状态。同样地，当第二电连接部24覆盖第二导电引线42具有足够的长度时，第二导电引线42能够稳定地收容于第二引线槽252的内部，并且第二电连接部24与第二导电引线42具有较大的电接触面积，第二导电引线42能够与第二电连接部24之间建立稳定的电连接状态。
进一步地，在多孔导液体21上还设置有第一凹槽261和第二凹槽262，其中第一凹槽261与第一引线槽251相连通，第二凹槽262与第二引线槽252相连通。第一电连接部23包括第一部分和第三部分，第一电连接部23的第一部分覆盖在第一引线槽251的至少部分敞口端，第一电连接部23的第二部分容置在第一凹槽261内，使得第一电连接部23的第三部分能够沿第一引线槽251的宽度方向抵接在第一导电引线41的外表面上，使得第一导电引线41固定在第一引线槽251内时同时受到沿第一引线槽251的深度方向和宽度方向的抵接作用，因而无法在第一引线槽251内产生位移。同样地，第二电连接部24包括第二部分和第四部分，第二电连接部24的第二部分覆盖在第一引线槽251的 至少部分敞口端，第二电连接部24的第四部分容置在第二凹槽262内，使得第二电连接部24的第二部分能够沿第二引线槽252的宽度方向抵接在第二导电引线42的外表面上，使得第二导电引线42固定在第二引线槽252内时同时受到沿第二引线槽252的深度方向和宽度方向的抵接作用，因而无法在第二引线槽252内产生位移。
可理解的是，当第一电连接部23包括第一部分和第三部分时，第一电连接部23的第一部分的长度可以适当减小。第一凹槽261可以单独设置在第一引线槽251的一侧，第一凹槽261与第一引线槽251组合形成T形槽，或者第一凹槽261的中轴线与第一引线槽251的中轴线呈一定的夹角设置。在其它的示例中，第一凹槽261也可以设置在第一引线槽251的两侧，第一凹槽261与第一引线槽251组合形成十字形槽，或者第一凹槽261的中轴线与第一引线槽251的中轴线呈X形交叉。第一凹槽261的深度小于第一引线槽251的深度，并且第一凹槽261靠近第一引线槽251的端部设置，有利于减小第一电连接部23的整体表面积，从而减小第一电连接部23产生的热损失。同样地，当第二电连接部24包括第二部分和第四部分时，第二电连接部24的第二部分的长度可以适当减小。第二凹槽262可以单独设置在第二引线槽252的一侧，第二凹槽262与第一引线槽251组合形成T形槽，或者第二凹槽262的中轴线与第二引线槽252的中轴线呈一定的夹角设置。在其它的示例中，第二凹槽262也可以设置在第二引线槽252的两侧，第二凹槽262与第二引线槽252组合形成十字形槽，或者第二凹槽262的中轴线与第二引线槽252的中轴线呈X形交叉。第二凹槽262的深度小于第二引线槽252的深度，并且第二凹槽262靠近第二引线槽252的端部设置，有利于减小第二电连接部24的整体表面积，从而减小第二电连接部24产生的热损失。第一凹槽261或第二凹槽262的端部敞口的尺寸大于其槽底的尺寸，有利于填充第一电连接部23的第二部分或者第二电连接部24的第四部分。第一引线槽251或者第二引线槽252的端部敞口的尺寸大于其槽底的尺寸，有利于导电引线在引线槽内的固定操作。
在其中的一个示例中，第一凹槽261或者第二凹槽262的深度为 0.3mm，第一凹槽261或第二凹槽262的位于雾化面212上的端部敞口设置有倒角，便于多孔导液体21的成型制备，以及便于第一电连接部23的第二部分或者第二电连接部24的第二部分填充在第一凹槽261或者第二凹槽262的内部。第一引线槽251或第二引线槽252的深度为0.5mm，第一引线槽251或者第二引线槽252的槽底设置为半径为0.3mm的半圆弧形，第一引线槽251或者第二引线槽252的端部敞口的尺寸为0.3mm～1.5mm。在第一引线槽251或者第二引线槽252内容置的导电引线的外径为0.3mm的镍线。可理解的是，当导电引线的外径发生变化时，第一引线槽251或第二引线槽252的端部敞口的尺寸、深度以及槽底的半圆弧形的半径均随之调整，以便于能够将导电引线的一部分段完全容纳在引线槽内。第一凹槽261和第二凹槽262的深度配置为第一电连接部23的第二部分或者第二电连接部24的第二部分能够对导电引线沿引线槽的宽度方向形成接触抵接。该多孔导液体21的雾化面212的长度为5mm，宽度为4mm，加热轨迹的宽度为0.3mm，厚度为0.1mm。加热轨迹在雾化面212上延伸的宽度可以根据雾化效率进行优化设计。
本申请又一实施例还提供一种上述雾化芯组件的制备方法，包括如下步骤：
第一步，制备陶瓷基体：将陶瓷粉、烧结剂、有机助剂和造孔剂混合得到陶瓷浆料，陶瓷浆料经注射成型得到陶瓷生坯，陶瓷生坯经脱脂、烧结后得到多孔陶瓷基体；其中，陶瓷粉包括氧化铝、氧化锆、氧化硅、氮化硅、堇青石或莫来石中的至少一种；烧结剂包括碳酸钙、氧化镁、氧化镧、氧化钡、氧化锌和氧化锂中的至少一种；造孔剂包括矿物蜡、白蜡、蜂蜡和地蜡中的至少一种；为了促进陶瓷浆料混合的均匀性，从而添加有机助剂，该有机助剂包括脂肪酸类分散剂和丙烯酸树脂类分散剂中的至少一种；以陶瓷浆料的重量百分比计，陶瓷粉的质量百分比占30％～50％，烧结剂的重量百分比占15％～30％，造孔剂的重量百分比占20％～40％。成型过程中，注塑成型机的注塑压力范围为0.5MPa～5MPa，注射温度范围为50℃～100℃。
第二步，放置导电引线：在第一引线槽251内放置第一导电引线， 在第二引线槽252内放置第二导电引线42；
第三步，印刷加热轨迹：经后膜印刷电阻浆料得到特定形状的加热轨迹，并将第一电连接部23的电阻浆料分别印刷在雾化面212的相应区域以及将导电浆料的一部分填充入第一引线槽251和第二引线槽252内部，通过固化使得第一导电引线和第二导电引线的一部分嵌入至多孔导液体内，并且使得第一导电引线和第二导电引线的另一部分沿基本平行于雾化面的方向远离多孔导液体的方向延伸。
进一步地，为了方便注入导电浆料，在多孔导液体上设置有第一凹槽和第二凹槽，其中第一凹槽与第一引线槽相连通，第二凹槽与第二引线槽相连通，导电浆料的一部分分别填充到第一凹槽和第二凹槽中，使得第一电连接部23与第一导电引线41保持固定接触；第二电连接部24与第二导电引线42保持固定接触。
进一步地，为了方便放置第一导电引线、第二导电引线以及引导导电浆料流入上述第一引线槽和第二引线槽，第一引线槽和第二引线槽位于雾化面上槽口的宽度大于槽底的宽度；当多孔导液体上还设置有第一凹槽以及第二凹槽时，第一凹槽和第二凹槽位于雾化面上槽口的宽度大于槽底的宽度。
第四步，烧结：加热轨迹、导电引线与陶瓷进行一体化烧结得到上述雾化芯组件。
可理解的是，在上述制备工序中，导电引线40只需要放置在引线槽内即可，利用后续印刷以及填充电阻浆料的过程中，完成导电引线的固定。相对于将导电引线焊接在第一电连接部23或者第二电连接部24上，导电引线40与第一电连接部23和第二电连接部24的结合更加稳定，并且可以省去焊接工序，有利于实现雾化芯组件20的自动化成型工序。
进一步地，上述雾化芯组件20借助于支撑组件沿雾化芯组件20的长度方向固定在大致呈管状的支架30的内腔中。在其中的一个示例中，参考图2以及图8所示，支撑组件包括密封元件51、上支撑架52以及下支撑架53。密封元件51包围在多孔导液体21的吸液面211的一侧设 置，上支撑架52和下支撑架53以相互插接的方式包围在多孔导液体21的雾化面212的一侧设置。其中，上支撑架52的一部分抵接在密封元件51的上端与支架30的内壁之间，并且上支撑架52的一部分嵌套在密封元件51上。下支撑架53的一部分抵接在密封元件51的下端与支架30的内壁之间，并且下支撑架53的一部分嵌套在密封元件51上。密封元件51包裹在吸液面211的周圈以及多孔导液体21的侧面213的大部分，密封元件51的两个侧壁抵接在多孔导液体21的凸台部2142的两侧。在密封元件51上还设置有一个第一开口511，多孔导液体21的吸液面211通过该第一开口511显露出来。在支架30的一侧设置有进液口31，密封元件51的第一开口511正对支架30上的进液口31设置，并且密封元件51上的第一开口511大小与进液口31的大小基本相同。密封元件51的第一开口511周围的壁面相对于多孔导液体21的吸液面211凸起设置，因而密封元件51与支架30共同界定形成一个敞口的导液腔32，储液腔13内部的液体基质经该导液腔32的敞口端进入，多孔导液体21的吸液面211与该导液腔32内部的基质直接接触，进而多孔导液体21的吸液面211处于相对稳定的供液环境中。进一步地，在上支撑架52的端部设置有第二开口521，在下支撑架53的端部设置有第三开口531，第二开口521和第三开口531正对设置，第二开口521和第三开口531之间形成相连通的气流通道60，多孔导液体21的雾化面212设置在该气流通道60的一侧。
下支撑架53的下端面抵接在连接座12的内环壁上，在连接座12的侧壁上设置有进气口121，外部气流经该进气口121导入连接座12的内腔中，并经下支撑架53的第三开口531导入气流通道60内，进而到达雾化面212，同时雾化面212上被加热元件22雾化生成的气溶胶经该气流通道到达上支撑架52的第二开口521。上支撑架52的第二开口521与支架30的内腔相连通。出气通道14可以由支架30的内腔界定形成，即支架30沿壳体10纵向延伸足够的长度，支架30的上端延伸至吸嘴11的内腔中。在另外的示例中，在支架30的一端连接有出气管，出气管可以是壳体10的内壁界定形成，出气管也可以单独设置并连接在支 架30与壳体10的吸嘴口110之间，出气管的内腔与支架30的内腔相连通从而形成出气通道14。气溶胶经上支撑架52的第二开口输出后进入出气通道14，经出气通道14引导至吸嘴口110被用户吸食。
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但并不限于本说明书所描述的实施例，进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (16)

  1. 一种雾化芯组件，其特征在于，包括：
    多孔导液体，被配置为吸收和传递液体基质；所述多孔导液体具有相对的吸液面和雾化面，以及连接在所述吸液面和雾化面之间的侧面；
    加热元件，配置成加热部分所述液体基质，所述加热元件包括在所述雾化面上延伸的电阻加热轨迹；
    导电引线，连接在所述加热元件的端部，所述导电引线的一部分嵌入所述多孔导液体的内部，另一部分自所述侧面沿基本平行于所述雾化面的方向远离所述多孔导液体延伸。
  2. 如权利要求1所述的雾化芯组件，其特征在于，所述导电引线包括第一导电引线和第二导电引线，所述第一导电引线和第二导电引线自所述多孔导液体同一侧的侧面引出。
  3. 如权利要求2所述的雾化芯组件，其特征在于，所述多孔导液体上设置有第一引线槽和第二引线槽，所述第一导电引线容置在所述第一引线槽内，所述第二导电引线容置在所述第二引线槽内。
  4. 如权利要求3所述的雾化芯组件，其特征在于，所述加热元件还包括连接于所述加热轨迹两端的第一电连接部和第二电连接部，所述第一电连接部构造成与所述第一导电引线的至少部分表面相接触并被配置为固定所述第一导电引线，所述第二电连接部构造成与所述第二导电引线的至少部分表面相接触并被配置为固定所述第二导电引线。
  5. 如权利要求4所述的雾化芯组件，其特征在于，所述第一电连接部的至少一部分从所述雾化面填充至所述第一引线槽内并结合在第一导电引线周围，所述第二电连接的至少一部分从所述雾化面填充至所述第二引线槽内并结合在第二导电引线的周围。
  6. 如权利要求4所述的雾化芯组件，其特征在于，所述多孔导液体上还设置有第一凹槽和第二凹槽，所述第一凹槽与所述第一引线槽相连通，所述第二凹槽与所述第二引线槽相连通。
  7. 如权利要求6所述的雾化芯组件，其特征在于，所述第一电连 接部的一部分容置在所述第一凹槽内并且被配置为对所述第一导电引线进行固定；所述第二电连接部的一部分容置在所述第二凹槽内并且被配置为对所述第二导电引线进行固定。
  8. 如权利要求6所述的雾化芯组件，其特征在于，所述第一凹槽自雾化面的凹陷深度小于所述第一引线槽的凹陷深度，所述第二凹槽自雾化面的凹陷深度小于所述第二引线槽的凹陷深度。
  9. 如权利要求3所述的雾化芯组件，其特征在于，所述第一引线槽和所述第二引线槽平行设置。
  10. 如权利要求6所述的雾化芯组件，其特征在于，所述第一凹槽和所述第一引线槽组合形成T形槽；或者，所述第二凹槽和所述第二引线槽组合形成T形槽。
  11. 如权利要求3所述的雾化芯组件，其特征在于，所述多孔导液体包括沿厚度方向布置的主体部以及凸台部，所述主体部和凸台部之间形成台阶，所述雾化面设置在所述凸台部上。
  12. 如权利要求11所述的雾化芯组件，其特征在于，所述第一引线槽和所述第二引线槽均设置在所述凸台部上。
  13. 一种雾化芯组件的制备方法，其特征在于，所述制备方法包括：
    制备多孔导液体，并在所述多孔导液体的雾化面上成型有凹陷的第一引线槽和第二引线槽；
    将第一导电引线放置入所述第一引线槽内，将第二导电引线放置入所述第二引线槽内；
    将导电浆料结合于所述多孔导液体的雾化面形成电阻加热轨迹，并且使导电浆料的一部分填充于所述第一引线槽和第二引线槽内，通过固化使第一导电引线和第二导电引线的一部分嵌入至多孔导液体内，二者的另一部分沿基本平行于所述雾化面的方向远离所述多孔导液体延伸。
  14. 如权利要求13所述的雾化芯组件的制备方法，其特征在于，所述多孔导液体上设置有第一凹槽和第二凹槽，其中所述第一凹槽与第一引线槽相连通，所述第二凹槽与第二引线槽相连通；导电浆料的一部分填充到所述第一凹槽和第二凹槽中。
  15. 如权利要求14所述的雾化芯组件的制备方法，其特征在于，所述第一引线槽和第二引线槽位于雾化面上槽口的宽度大于槽底的宽度；
    或者所述第一凹槽和第二凹槽位于雾化面上槽口的宽度大于槽底的宽度。
  16. 一种气溶胶生成装置，其特征在于，包括壳体和位于壳体中的储液腔，所述储液腔被配置为储存液体基质，所述壳体内设置有权利要求1-12任一项所述的雾化芯组件，所述雾化芯组件被配置为将液体基质雾化生成气溶胶；其中所述雾化芯组件包括雾化面，所述雾化面的延伸方向与所述壳体的纵向平行设置。
PCT/CN2023/090263 2022-04-30 2023-04-24 雾化芯组件及其制备方法、气溶胶生成装置 WO2023207897A1 (zh)

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