EP4226783A1 - Ensemble de chauffage, atomiseur et appareil d'atomisation électronique - Google Patents

Ensemble de chauffage, atomiseur et appareil d'atomisation électronique Download PDF

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Publication number
EP4226783A1
EP4226783A1 EP21946245.4A EP21946245A EP4226783A1 EP 4226783 A1 EP4226783 A1 EP 4226783A1 EP 21946245 A EP21946245 A EP 21946245A EP 4226783 A1 EP4226783 A1 EP 4226783A1
Authority
EP
European Patent Office
Prior art keywords
heating assembly
vertical
holes
transverse holes
hole diameter
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP21946245.4A
Other languages
German (de)
English (en)
Other versions
EP4226783A4 (fr
Inventor
Yueyang ZHAO
Ming LV
Biao Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Smoore Technology Ltd
Original Assignee
Shenzhen Smoore Technology Ltd
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
Publication date
Application filed by Shenzhen Smoore Technology Ltd filed Critical Shenzhen Smoore Technology Ltd
Publication of EP4226783A1 publication Critical patent/EP4226783A1/fr
Publication of EP4226783A4 publication Critical patent/EP4226783A4/fr
Pending legal-status Critical Current

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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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • 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
    • A24F40/44—Wicks

Definitions

  • This present disclosure relates to the field of electronic atomization technologies, and in particular, to a heating assembly, an atomizer, and an electronic atomization device.
  • An electronic atomization device includes a heating body, a battery, a control circuit, and the like.
  • the heating body is a core component of the electronic atomization device, and characteristics of the heating body decide an atomizing effect and use experience of the electronic atomization device.
  • An existing heating body is a cotton core heating body.
  • Most cotton core heating bodies are in a structure of a spring-shaped metal heating wire wrapped on a cotton rope or a fiber rope.
  • a to-be-atomized liquid aerosol-forming substrate is absorbed by two ends of the cotton rope or the fiber rope and then transmitted to the centered metal heating wire for heating and atomizing. Since an area of the end portion of the cotton rope or the fiber rope is limited, the absorption efficiency and the transmission efficiency of the aerosol-forming substrate are relatively low.
  • the structure stability of the cotton rope or the fiber rope is poor. As a result, phenomena such as dry burning, carbon accumulation, and a burnt flavor are likely to occur after a plurality of thermal cycles.
  • the ceramic heating body is generally a metal heating film formed on the surface of a porous ceramic body.
  • the porous ceramic body plays a role of liquid guiding and liquid storage, and the liquid aerosol-forming substrate is heated and atomized by the metal heating film.
  • it is hard for a porous ceramic manufactured through high-temperature sintering to accurately control the position distribution and size precision of micropores.
  • a hole diameter and a porosity need to be decreased, but to implement sufficient liquid supplying, the hole diameter and the porosity need to be increased, which conflict with each other.
  • a liquid guiding capability of a porous ceramic substrate is limited, and a burnt flavor is generated under a high-power condition.
  • a thin heating body is provided to improve a liquid supplying capability.
  • bubbles are easily formed on a liquid absorbing surface of the thin heating body, which blocks liquid intaking and leads to dry burning of the heating body.
  • the present disclosure provides a heating assembly, an atomizer, and an electronic atomization device, to solve the technical problem that bubbles are easily formed on a liquid absorbing surface of a thin heating body in the related art.
  • a first technical solution provided in the present disclosure is to provide a heating assembly, including a dense substrate, where the dense substrate includes a liquid absorbing surface and an atomizing surface that are arranged opposite to each other, the dense substrate includes a plurality of vertical holes and a plurality of transverse holes, the plurality of vertical holes penetrate the liquid absorbing surface and the atomizing surface, and the plurality of transverse holes are in communication with the plurality of vertical holes.
  • the plurality of transverse holes include a plurality of first transverse holes extending in a first direction and a plurality of second transverse holes extending in a second direction, the second direction intersects with the first direction, and the first transverse holes and the second transverse holes are arranged in a same layers in the thickness direction of the dense substrate.
  • the plurality of transverse holes include a plurality of first transverse holes extending in a first direction and a plurality of second transverse holes extending in a second direction, the second direction intersects with the first direction, and the first transverse holes and the second transverse holes are arranged in different layers in the thickness direction of the dense substrate.
  • each of the plurality of vertical holes includes a first vertical hole segment close to the liquid absorbing surface and a second vertical hole segment close to the atomizing surface, and the hole diameter of the first vertical hole segment is different from the hole diameter of the second vertical hole segment.
  • the hole diameter of the first vertical hole segment at an end opening of the liquid absorbing surface has a first value
  • the hole diameter of the second vertical hole segment at an end opening of the atomizing surface has a second value
  • the first value is greater than the second value
  • the hole diameter of each of the plurality of vertical holes is gradually increased.
  • the hole diameter of each of the plurality of vertical holes is consistent.
  • the thickness of the dense substrate ranges from 0.1 mm to 1 mm.
  • the hole diameter of each of the plurality of vertical holes ranges from 1 ⁇ m to 100 ⁇ m.
  • the hole diameter of each of the plurality of transverse holes ranges from 1 ⁇ m to 100 ⁇ m.
  • the ratio of the thickness of the dense substrate to the hole diameter of each of the plurality of vertical holes ranges from 20:1 to 3:1.
  • the ratio of a distance between centers of adj acent vertical holes to the hole diameter of each of the plurality of vertical holes ranges from 3:1 to 5:1.
  • the heating assembly further includes a heating component, and the heating component is arranged on the atomizing surface.
  • a second technical solution provided in the present disclosure is to provide an atomizer.
  • the atomizer includes a liquid storage cavity and the above-mentioned heating assembly.
  • the liquid storage cavity is configured to store an aerosol-forming substrate.
  • the heating assembly is in fluid communication with the liquid storage cavity and configured to atomize the aerosol-forming substrate.
  • a third technical solution provided in the present disclosure is to provide an electronic atomization device.
  • the electronic atomization device includes the above-mentioned atomizer and a main unit.
  • the main unit is configured to supply electric energy for operation of the atomizer and control the heating assembly to atomize the aerosol-forming substrate.
  • the present disclosure provides the heating assembly, the atomizer, and the electronic atomization device.
  • the heating assembly includes the dense substrate, and the dense substrate includes the liquid absorbing surface and the atomizing surface that are arranged opposite to each other.
  • the dense substrate includes the plurality of vertical holes and the plurality of transverse holes. The plurality of vertical holes penetrate the liquid absorbing surface and the atomizing surface, and the plurality of transverse holes is in communication with the plurality of vertical holes, to prevent the bubbles from blocking liquid supplying through the plurality of transverse holes, thereby further preventing dry burning.
  • first”, “second”, and “third” in the present disclosure are merely intended for a purpose of description, and shall not be understood as indicating or implying relative significance or implicitly indicating the number of indicated technical features. Therefore, features defining “first”, “second”, and “third” can explicitly or implicitly indicate that at least one of such features is included.
  • "a plurality of” means at least two, such as two and three, etc., unless it is specifically defined otherwise. All directional indications (for example, upper, lower, left, right, front, and rear, etc.) in the embodiments of the present disclosure are only used for explaining the relative position relationship, movement situations, or the like between various components in a specific posture (as shown in the accompanying drawings).
  • the terms “include”, “have”, and any variant thereof are intended to cover a non-exclusive inclusion.
  • a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but further optionally includes a step or unit that is not listed, or further optionally includes another step or component that is intrinsic to the process, method, product, or device.
  • FIG. 1 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present disclosure.
  • an electronic atomization device 100 is provided.
  • the electronic atomization device 100 may be configured to atomize an aerosol-forming substrate.
  • the electronic atomization device 100 includes an atomizer 1 and a main unit 2 that are electrically connected to each other.
  • the atomizer 1 is configured to store an aerosol-forming substrate and atomize the aerosol-forming substrate to form aerosols that can be inhaled by a user.
  • the atomizer 1 specifically may be applied to different fields such as medical care, cosmetology, recreation inhalation, and so on.
  • the atomizer 1 may be applied to an electronic aerosol atomization device to atomize the aerosol-forming substrate and generate the aerosols for the user to inhale, and the following embodiments are described by using the recreation inhalation as an example.
  • the atomizer 1 may also be applied to a hair spray device to atomize hair spray used for hair styling.
  • the atomizer 1 may be applied to a device treating upper and lower respiratory system diseases to atomize medicine.
  • the main unit 2 includes a battery (not shown in the figure) and a controller (not shown in the figure).
  • the battery is configured to supply electric energy to the atomizer 1 for operation of the atomizer 1, such that the atomizer 1 may atomize the aerosol-forming substrate to form the aerosols.
  • the controller is configured to control the operation of the atomizer 1.
  • the main unit 2 further includes other components such as a battery holder, an airflow sensor, and so on.
  • the atomizer 1 and the main unit 2 may be integrally arranged or may be detachably connected to each other, which may be designed according to a specific requirement.
  • FIG. 2 is a schematic structural diagram of the atomizer according to an embodiment of the present disclosure.
  • the atomizer 1 includes a housing 10, an atomization base 11, and a heating assembly 12.
  • the housing 10 includes a liquid storage cavity 13 and an air outlet channel 14.
  • the liquid storage cavity 13 is configured to store a liquid aerosol-forming substrate, and the liquid storage cavity 13 surrounds the air outlet channel 14.
  • An inhaling port 15 is further defined on the end portion of the housing 10, and the inhaling port 15 is in communication with the air outlet channel 14.
  • one of the end openings of the air outlet channel 14 may be defined as the inhaling port 15.
  • a holding cavity 16 is defined on the housing 10 on the side of the liquid storage cavity 13 that is away from the inhaling port 15, and the atomization base 11 is arranged in the holding cavity 16.
  • the atomization base 11 includes an atomization top base 111 and an atomization bottom base 112.
  • the atomization top base 111 cooperates with the atomization bottom base 112 to form an accommodating cavity 113. That is, the atomization base 11 includes the accommodating cavity 113.
  • the heating assembly 12 is arranged in the accommodating cavity 113 and is arranged together with the atomization base 11 in the holding cavity 16.
  • Two fluid channels 114 are arranged on the atomization top base 111. Specifically, the two fluid channels 114 are arranged on the top wall of the atomization top base 111, and the two fluid channels 114 are arranged on the two sides of the air outlet channel 14, respectively.
  • One of the ends of each of the fluid channels 114 is in communication with the liquid storage cavity 13, and the other of the ends of each of the fluid channels 114 is in communication with the accommodating cavity 113. That is, the fluid channels 114 is in communication with the liquid storage cavity 13 and the accommodating cavity 113, so that the aerosol-forming substrate in the liquid storage cavity 13 enters into the heating assembly 12 through the two fluid channels 114. That is, the heating assembly 12 is in fluid communication with the liquid storage cavity 13, and the heating assembly 12 is configured to absorb, heat, and atomize the aerosol-forming substrate.
  • the controller of the main unit 2 controls the heating assembly 12 to atomize the aerosol-forming substrate.
  • the surface of the heating assembly 12 that is away from the liquid storage cavity 13 is an atomizing surface
  • an atomization cavity 115 is defined between the atomizing surface of the heating assembly 12 and the inner wall surface of the accommodating cavity 113
  • the atomization cavity 115 is in communication with the air outlet channel 14.
  • An air inlet 116 is defined on the atomization bottom base 112, so that the atomization cavity 115 is in communication with the outside. External air enters the atomization cavity 115 through the air inlet 116, carries the aerosols atomized by the heating assembly 12 to enter the air outlet channel 14, and finally reaches the inhaling port 15 to be inhaled by the user.
  • the atomizer 1 further includes a conductor 17, and the conductor 17 is fixed on the atomization bottom base 112.
  • One of the ends of the conductor 17 is electrically connected to the heating assembly 12, and the other of the ends of the conductor 17 is electrically connected to the main unit 2, so that the heating assembly 12 may work.
  • the atomizer 1 further includes a sealing top cap 18.
  • the sealing top cap 18 is arranged on the surface of the atomization top base 111 that is close to the liquid storage cavity 13, and configured to implement sealing between the liquid storage cavity 13 and the atomization top base 111, and between the liquid storage cavity 13 and the air outlet channel 14, to prevent liquid leakage.
  • a material of the sealing top cap 18 is a silicone or a fluoro-rubber.
  • FIG. 3 is a schematic structural diagram of a heating assembly according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of the heating assembly shown in FIG. 3 from the side where a liquid absorbing surface is located
  • FIG. 5 is a schematic perspective top structural view of the heating assembly shown in FIG. 3 .
  • the heating assembly 12 includes a dense substrate 121, and the dense substrate 121 includes a liquid absorbing surface 1211 and an atomizing surface 1212 that are arranged opposite to each other.
  • the dense substrate 121 includes a plurality of vertical holes 1213 and a plurality of transverse holes 1214, the plurality of vertical holes 1213 are through holes penetrating the liquid absorbing surface 1211 and the atomizing surface 1212, and the plurality of transverse holes 1214 are in communication with the plurality of vertical holes 1213.
  • the plurality of transverse holes 1214 cooperate with the plurality of vertical holes 1213 to form a mesh-shaped microfluidic channel.
  • Each of the vertical holes 1213 includes a capillary force, and the aerosol-forming substrate is guided from the liquid absorbing surface 1211 to the atomizing surface 1212 through the vertical holes 1213.
  • the mesh-shaped microfluidic channel may prevent bubbles from entering the liquid absorbing surface 1211 from the atomizing surface 1212, and prevent bubbles entering through adjacent vertical holes 1213 from being connected to each other, namely, prevent the bubbles from growing up.
  • the transverse holes 1214 may supplement the aerosol-forming substrate to the blocked vertical holes 1213, to ensure in-time liquid supplying to the atomizing surface 1212, thereby preventing dry burning.
  • the transverse holes 1214 further plays a role of liquid storage, to ensure that the transverse holes may not be burnt out for at least two times of inverse inhalation.
  • a material of the dense substrate 121 is a glass, a dense ceramic, or a silicon.
  • the glass may be one of a common glass, a quartz glass, a borosilicate glass, or a photosensitive lithium aluminosilicate glass.
  • the dense substrate 121 is the borosilicate glass.
  • the dense substrate 121 is the photosensitive lithium aluminosilicate glass.
  • the dense substrate 121 may be in a shape of a plate, a cylinder, or an arc, which is specifically designed as required.
  • the dense substrate 121 of the heating assembly 12 shown in FIG. 4 is in the shape of the plate.
  • the dense substrate 121 may be set to be in a regular shape, such as a rectangular plate shape, a circular plate shape, or the like.
  • the plurality of vertical holes 1213 are arranged in an array on the dense substrate 121. That is, the plurality of vertical holes 1213 are regularly arranged on the dense substrate 121, and distances between centers of adj acent vertical holes 1213 among the plurality of vertical holes 1213 are the same.
  • FIG. 6 is a schematic structural diagram of the heating assembly shown in FIG. 3 from the side of where the atomizing surface is located.
  • the heating assembly 12 further includes a heating component 122, a positive electrode 123, and a negative electrode 124.
  • the two ends of the heating component 122 are respectively electrically connected to the positive electrode 123 and the negative electrode 124.
  • the positive electrode 123 and the negative electrode 124 are both arranged on the atomizing surface of the dense substrate 121 to be electrically connected to the main unit 2.
  • the heating component 122 may be a heating sheet, a heating film, or a heating mesh, provided that the aerosol-forming substrate may be heated and atomized.
  • the heating component 122 may be arranged on the atomizing surface of the dense substrate 121 or may be buried inside the dense substrate 121, which is specifically designed as required.
  • the dense substrate 121 includes a conductive function and may generate heat by itself, such as a conductive ceramic generating heat by itself or a glass having a conductive function, and the heating component 122 does not need to be arranged in this case. That is, the heating component 122 is an optional structure.
  • the plurality of vertical holes 1213 are merely arranged on a part of the surface of the dense substrate 121 in an array arrangement manner.
  • the dense substrate 121 has a microporous array region 1215 and a blank region 1216 arranged surrounding a periphery of the microporous array region 1215.
  • the microporous array region 1215 includes the plurality of vertical holes 1213.
  • the heating component 122 is arranged in the microporous array region 1215, to heat and atomize the aerosol-forming substrate.
  • the positive electrode 123 and the negative electrode 124 are arranged in the blank region 1216 of the atomizing surface 1212, to ensure the stability of the electrical connection between the positive electrode 123 and the negative electrode 124.
  • microporous array region 1215 and the blank region 1216 provided surrounding the periphery of the microporous array region 1215 on the dense substrate 121 it may be understood that, no vertical hole 1213 is arranged on the blank region 1216, thereby helping improve the intensity of the dense substrate 121 and reduce production costs.
  • the microporous array region 1215 in the dense substrate 121 is used as an atomizing region to cover the heating component 122 and a region around the heating component 122, that is, regions reaching a temperature for atomizing the aerosol-forming substrate are basically covered, thereby fully utilizing the thermal efficiency.
  • the region be referred to as the blank region 1216. That is, the blank region 1216 in the present disclosure is a region in which the vertical holes 1213 may be formed but no vertical hole 1213 is formed, rather than a region around the microporous array region 1215 and in which vertical holes 1213 cannot be formed.
  • the blank region 1216 is arranged in a circumferential direction of the microporous array region 1215 only when a gap between a vertical hole 1213 that is closest to a touchline of the dense substrate 121 and the touchline of the dense substrate 121 is greater than the hole diameter of the vertical hole 1213.
  • the extending direction of the vertical hole 1213 may be substantially parallel to the thickness direction of the dense substrate 121, or may form an angle with the thickness direction of the dense substrate 121. The angle ranges from 80 degrees to 90 degrees.
  • the cross section of the vertical hole 1213 may be in a shape of a circle, and a shape of the longitudinal section and the extending direction of the vertical hole 1213 may be designed as required.
  • the vertical hole 1213 is a through hole substantially parallel to the thickness direction of the dense substrate 121. That is, the central axis of the vertical hole 1213 is substantially perpendicular to the liquid absorbing surface 1211.
  • the hole diameter of each vertical hole 1213 on the dense substrate 121 ranges from 1 ⁇ m to 100 ⁇ m.
  • the hole diameter of the vertical hole 1213 is less than 1 ⁇ m, the liquid supplying requirement cannot be met, leading to a decrease in an amount of the aerosols.
  • the hole diameter of the each vertical hole 1213 is greater than 100 ⁇ m, the aerosol-forming substrate may easily leak out from the vertical hole 1213 to cause liquid leakage, leading to a decrease in the atomization efficiency. It may be understood that, the hole diameter of the dense substrate 121 is selected according to an actual requirement.
  • the hole diameter of each transverse hole 1214 ranges from 1 ⁇ m to 100 ⁇ m. When the hole diameter of the transverse hole 1214 is less than 1 ⁇ m, an effect of preventing the bubbles from entering the liquid absorbing surface 1211 cannot be well implemented. When the hole diameter of the transverse hole 1214 is greater than 100 ⁇ m, the aerosol-forming substrate may leak easily, and there is a risk that the bubbles are transversely merged to grow up.
  • the hole diameter of the each transverse hole 1214 ranges from 20 ⁇ m to 50 ⁇ m. It may be understood that, the hole diameter of the transverse hole 1214 is selected according to an actual requirement.
  • the thickness of the dense substrate 121 ranges from 0.1 mm to 1 mm. When the thickness of the dense substrate 121 is greater than 1 mm, the liquid supplying requirement cannot be met, leading to the decrease in the amount of the aerosols and a great heat loss. In addition, costs for providing the vertical holes 1213 and the transverse holes 1214 are high. When the thickness of the dense substrate 121 is less than 0.1 mm, the intensity of the dense substrate 121 cannot be ensured, which is not conducive to improve the performance of the electronic atomization device. Optionally, the thickness of the dense substrate 121 ranges from 0.3 mm to 0.7 mm. It may be understood that, the thickness of the dense substrate 121 is selected according to an actual requirement.
  • the ratio of the thickness of the dense substrate 121 to the hole diameter of the each vertical hole 1213 ranges from 20:1 to 3:1, to improve the liquid supplying capability.
  • the ratio of the thickness of the dense substrate 121 to the hole diameter of the vertical hole 1213 is greater than 20:1, the aerosol-forming substrate supplied through the capillary force of the each vertical hole 1213 cannot met an atomization required amount of the heating component 122, which easily leads to dry burning and the decrease in the amount of the aerosols generated in single atomization.
  • the ratio of the thickness of the dense substrate 121 to the hole diameter of the vertical hole 1213 is less than 3:1, the aerosol-forming substrate may easily leak out from the vertical hole 1213 to cause a waster, leading to the decrease in the atomization efficiency and a decrease in a total amount of the aerosols.
  • the ratio of the thickness of the dense substrate 121 to the hole diameter of the vertical hole 1213 ranges from 15:1 to 5:1.
  • the ratio of a distance between centers of two adjacent vertical holes 1213 to the hole diameter of the each vertical hole 1213 ranges from 3:1 to 1.5:1, so that the intensity of the dense substrate 121 is improved as much as possible in a case that the vertical holes 1213 on the dense substrate 121 may meet the liquid supplying capability.
  • the ratio of the distance between centers of the two adjacent vertical holes 1213 to the hole diameter of the each vertical hole 1213 ranges from 3:1 to 2:1.
  • the ratio of the distance between centers of the two adj acent vertical holes 1213 to the hole diameter of the each vertical hole 1213 ranges from 3:1 to 2.5:1.
  • FIG. 7 is a schematic structural diagram of the transverse holes and the vertical holes of the heating assembly shown in FIG. 3 according to an embodiment of the present disclosure.
  • the plurality of transverse holes 1214 include a plurality of first transverse holes 1214a extending in a first direction and a plurality of second transverse holes 1214b extending in a second direction, the first direction intersects with the second direction, and the plurality of first transverse holes 1214a and the plurality of second transverse holes 1214b are provided in a same layer in the thickness direction of the dense substrate 121.
  • the central axis of each of the plurality of first transverse holes 1214a and the central axis of each of the plurality of second transverse holes 1214b are approximately located in the same plane.
  • the first direction is substantially perpendicular to the second direction.
  • FIG. 8 is a schematic structural diagram of the transverse holes and the vertical holes of the heating assembly shown in FIG. 3 according to an embodiment of the present disclosure.
  • the plurality of first transverse holes 1214a and the plurality of second transverse holes 1214b are arranged in different layers in the thickness direction of the dense substrate 121.
  • the plurality of first transverse holes 1214a and the plurality of second transverse holes 1214b are arranged at intervals in the thickness direction of the dense substrate 121.
  • the plurality of first transverse holes 1214a and the plurality of second transverse holes 1214b are staggered in the thickness direction of the dense substrate 121, which helps improve the intensity of the dense substrate 121.
  • the hole diameters of the plurality of vertical holes 1213 are consistent in a direction from the atomizing surface 1212 to the liquid absorbing surface 1211.
  • the hole diameters of the plurality of transverse holes 1214 are consistent in an extending direction of each of the plurality of transverse holes 1214.
  • An angle between the central axis of the each of the plurality of transverse holes 1214 and the central axis of each of the plurality of vertical holes 1213 is greater than or equal to 70 degrees and less than or equal to 90 degrees. Optionally, the angle is 90 degrees. It may be understood that, the hole diameters of the plurality of vertical holes 1213 may be the same as or may be different from each other, which are designed as required.
  • the hole diameters of the plurality of transverse holes 1213 may be the same as or may be different from each other, which are designed as required.
  • FIG. 9 is a schematic structural diagram of the transverse holes and the vertical holes of the heating assembly shown in FIG. 3 according to still another embodiment of the present disclosure
  • FIG. 10 is a schematic structural diagram of the transverse holes and the vertical holes inside the heating assembly provided in FIG. 3 according to a further embodiment of the present disclosure.
  • each of the plurality of vertical holes 1213 includes a first vertical hole segment 1213a close to the liquid absorbing surface 1211 and a second vertical hole segment 1213b close to the atomizing surface 1212, and the hole diameter of the first vertical hole segment 1213a is different from the hole diameter of the second vertical hole segment 1213b.
  • the hole diameter of each of the plurality of vertical holes 1213 at the end opening of the liquid absorbing surface 1211 has a first value
  • the hole diameter of each of the plurality of vertical holes 1213 at the end opening of the atomizing surface 1212 has a second value
  • the first value is greater than the second value. That is, the hole diameter of the first vertical hole segment 1213a at the end opening of the liquid absorbing surface 1211 is greater than the hole diameter of the second vertical hole segment 1213b at the end opening of the atomizing surface 1212.
  • the hole diameter of each of the plurality of vertical holes 1213 is gradually increased.
  • the hole diameter of each of the plurality of vertical holes 1213 is continuously increased.
  • the longitudinal section of each of the plurality of vertical holes 1213 is in a shape of a trapezoid, namely, each of the plurality of vertical holes 1213 is a cone-shaped hole.
  • the hole diameter of each of the plurality of vertical holes 1213 is increased in a stepped manner.
  • first vertical hole segment 1213a and the second vertical hole segment 1213b each have an equal or constant diameter, and by setting the hole diameter of the second vertical hole segment 1213b to be less than the hole diameter of the first vertical hole segment 1213a, the contact between the bubbles and the hole wall is reduced, which helps bubble separation.
  • the first vertical hole segment 1213a may be in a shape of a funnel.
  • the hole diameter of an end opening of the first vertical hole segment 1213a close to the second vertical hole segment 1213b is substantially equal to the hole diameter of the second vertical hole segment 1213b, and the hole diameter of another part of the first vertical hole segment 1213a is greater than the hole diameter of the second vertical hole segment 1213b, thereby reducing the contact between the bubbles and the hole wall, and helping bubble separation.
  • the first vertical hole segment 1213a is in a shape of a truncated cone
  • the second vertical hole segment 1213b is in a shape of a cylinder.
  • each of the plurality of transverse holes 1214 may be a diameter-equal hole or may be a cone-shaped hole, provided that transverse liquid supplying may be implemented and the bubble discharge can be facilitated, which is specifically designed as required.
  • the plurality of vertical holes 1213 of the heating assembly 12 provided in the present disclosure may be obtained through laser drilling, or may be obtained through laser induction first and corrosion when immersed in corrosion liquid.
  • the plurality of transverse holes 1214 may be obtained through the laser induction first and corrosion when immersed in corrosion liquid, and it may be understood that, no transverse hole 1214 is formed in the blank region 1216 in this manner.

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EP21946245.4A 2021-12-30 2021-12-30 Ensemble de chauffage, atomiseur et appareil d'atomisation électronique Pending EP4226783A4 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2021/143260 WO2023123250A1 (fr) 2021-12-30 2021-12-30 Ensemble de chauffage, atomiseur et appareil d'atomisation électronique

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EP4226783A1 true EP4226783A1 (fr) 2023-08-16
EP4226783A4 EP4226783A4 (fr) 2023-09-20

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WO (1) WO2023123250A1 (fr)

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