EP4159057B1 - Heizkörper, zerstäuber und elektronische zerstäubungsvorrichtung - Google Patents

Heizkörper, zerstäuber und elektronische zerstäubungsvorrichtung

Info

Publication number
EP4159057B1
EP4159057B1 EP22759005.6A EP22759005A EP4159057B1 EP 4159057 B1 EP4159057 B1 EP 4159057B1 EP 22759005 A EP22759005 A EP 22759005A EP 4159057 B1 EP4159057 B1 EP 4159057B1
Authority
EP
European Patent Office
Prior art keywords
micropores
grooves
heating body
heating
liquid absorbing
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.)
Active
Application number
EP22759005.6A
Other languages
English (en)
French (fr)
Other versions
EP4159057A2 (de
EP4159057A4 (de
Inventor
Yueyang ZHAO
Ming LV
Biao Zhang
Wenyuan Fan
Guanghui Li
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 EP4159057A2 publication Critical patent/EP4159057A2/de
Publication of EP4159057A4 publication Critical patent/EP4159057A4/de
Application granted granted Critical
Publication of EP4159057B1 publication Critical patent/EP4159057B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44—Wicks
    • 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

Definitions

  • the atomization assembly includes an e-liquid storage compartment, a heating body an e-liquid guiding member and a fixing seat;
  • the heating body includes a dense base and a heating member;
  • the dense base has an atomization surface and an e-liquid suction surface opposite each other, the dense base has a plurality of first micropores, and the first micropores extend from the e-liquid suction surface to the atomization surface;
  • the heating member is provided on the atomization surface;
  • the e-liquid guiding member is used for guiding e-liquid in the e-liquid storage compartment to the e-liquid suction surface of the heating body;
  • the fixing seat is used for supporting the e-liquid guiding member;
  • the e-liquid guiding member is sandwiched between the heating body and the fixing seat, and the heating body, the e-liquid guiding member and the fixing seat are sequentially stacked; and the dense base suctions the e-liquid from the e
  • a process, a method, a system, a product, or a 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 other step or component that is intrinsic to the process, the method, the product, or the device.
  • FIG. 1 is a structural schematic view of an electronic atomizing device according to an embodiment of the present disclosure.
  • an electronic atomizing device 100 is provided.
  • the electronic atomizing device 100 may be configured to atomize an aerosol-generation substance.
  • the electronic atomizing device 100 includes an atomizer 1 and a power supply assembly 2 electrically connected to each other.
  • the atomizer 1 is configured to store an aerosol-generation substance and atomize the aerosol-generation substance to form aerosols that can be inhaled by a user.
  • the atomizer 1 may be specifically applied to different fields such as medical care, cosmetology, and recreation inhalation.
  • the atomizer 1 may be applied to an electronic aerosol atomizing device to atomize an aerosol-generation substance and generate aerosols for inhalation by the user, and the following embodiments are described by taking the recreation inhalation as an example.
  • the power supply assembly 2 includes a battery (not shown in the drawing) and a controller (not shown in the drawing).
  • the battery is configured to supply electric energy for operation of the atomizer 1, so as to enable the atomizer 1 to atomize the aerosol-generation substance to form aerosols.
  • the controller is configured to control operation of the atomizer 1.
  • the power supply assembly 2 further includes other components such as a battery holder and an airflow sensor.
  • the atomizer 1 and the power supply assembly 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 structural schematic view of an atomizer of the electronic atomizing device provided in FIG. 1 .
  • the atomizer 1 includes a housing 10, a heating body 11, and an atomizing base 12.
  • the atomizing base 12 includes a mounting cavity (not labeled in the drawing), and the heating body 11 is arranged in the mounting cavity; and the heating body 11 is arranged together with the atomizing base 12 in the housing 10.
  • the housing 10 defines an air outlet channel 13, an inner surface of the housing 10, an outer surface of the air outlet channel 13, and a top surface of the atomizing base 12 cooperate to form a liquid storage cavity 14, and the liquid storage cavity 14 is configured to store a liquid aerosol-generation substance.
  • the heating body 11 is electrically connected to the power supply assembly 2, so as to atomize the aerosol-generation substance to generate aerosols.
  • the atomizing base 12 includes an upper base 121 and a lower base 122, and the upper base 121 and the lower base 122 cooperate to form the mounting cavity; and an atomizing surface of the heating body 11 and a cavity wall of the mounting cavity cooperate to form an atomizing cavity 120.
  • a liquid supplying channel 1211 is defined in the upper base 121.
  • the aerosol-generation substance in the liquid storage cavity 14 flows into the heating body 11 through the liquid supplying channel 1211, namely, the heating body 11 is in fluidly coupled to the liquid storage cavity 14.
  • An air inlet channel 15 is defined in the lower base 122, external air enters the atomizing cavity 120 through the air inlet channel 15, carries aerosols atomized by the heating body 11 to flow to the air outlet channel 13, and the user inhales the aerosols through an end opening of the air outlet channel 13.
  • FIG. 3 is a structural schematic view of a heating body according to a first embodiment of the atomizer provided in FIG. 2
  • FIG. 4 is a structural schematic view of the heating body provided in FIG. 3 viewed from one side of an atomizing surface
  • FIG. 5 is a structural schematic view of the heating body provided in FIG. 3 viewed from one side of a liquid absorbing surface
  • FIG. 6 is a schematic partially enlarged structural schematic view of FIG. 3 .
  • the heating body 11 includes a dense substrate 111, and the dense substrate 111 includes a liquid absorbing surface 1111 and an atomizing surface 1112 arranged opposite to each other.
  • a plurality of micropores 1113 are defined on the dense substrate 111, the plurality of micropores 1113 are through holes extending through from the liquid absorbing surface 1111 to the atomizing surface 1112, and the plurality of micropores 1113 are designed orderly.
  • the plurality of micropores 1113 are configured to guide the aerosol-generation substance from the liquid absorbing surface 1111 to the atomizing surface 1112.
  • the aerosol-generation substance in the liquid storage cavity 14 flows to the liquid absorbing surface 1111 of the dense substrate 111 through the liquid supplying channel 1211, and is guided to the atomizing surface 1112 through the capillary force of the plurality of micropores 1113.
  • the aerosol-generation substance flows from the liquid absorbing surface 1111 to the atomizing surface 1112.
  • the aerosol-generation substance is heated and atomized on the atomizing surface 1112 of the heating body 11 to generate aerosols.
  • the atomizing surface 1112 is a wetting structure on which surface treatment is performed, and the wetting structure is fluidly coupled to the plurality of micropores 1113.
  • the liquid absorbing surface 1111 is a smooth surface.
  • the aerosol-generation substance is atomized on the atomizing surface 1112 to generate aerosols, by arranging the wetting structure on the atomizing surface 1112, a wetted area of the atomizing surface 1112 is enlarged, such that more aerosol-generation substances may be attached to the atomizing surface 1112, thereby improving the atomizing efficiency.
  • the material of the dense substrate 111 is glass, dense ceramic, silicon, or quartz.
  • the glass may be one of common glass, quartz glass, borosilicate glass, or photosensitive lithium aluminosilicate glass.
  • the dense substrate 111 is in a shape of a sheet. It should be understood that, a sheet-like body is described compared to a block-shaped body, a ratio of the length to the thickness of a sheet-like body is greater than a ratio of the length to the thickness of a block-shaped body; and for example, the dense substrate 111 may be in a shape of a rectangular sheet.
  • the dense substrate 111 may also be in a shape of a plate, an arc, or a cylinder, which is specifically designed as required, and other structures of the atomizer 1 are matched with the shape of the dense substrate 111.
  • the plurality of micropores 1113 on the dense substrate 111 are straight through holes extending through two opposite surfaces of the dense substrate 111, and the axis of each of the plurality of micropores 1113 is perpendicular to the dense substrate 111. That is, the extending direction of each of the plurality of micropores 1113 is perpendicular to the dense substrate 111.
  • the diameter of the micropores 1113 on the dense substrate 111 ranges from 1 ⁇ m to 100 ⁇ m. When the diameter of the micropores 1113 is less than 1 ⁇ m, the liquid supplying requirement cannot be met, thereby leading to a decrease of the amount of aerosols. When the diameter of the micropores 1113 is greater than 100 ⁇ m, the aerosol-generation substance may easily leak out from the plurality of micropores 1113 to cause liquid leakage. In some embodiments, the diameter of the micropores 1113 ranges from 20 ⁇ m to 50 ⁇ m. It should be understood that the diameter of the micropores 1113 is selected according to an actual requirement.
  • a thickness of the dense substrate 111 ranges from 0.1 mm to 2 mm.
  • the thickness of the dense substrate 111 is the distance between the liquid absorbing surface 1111 and the atomizing surface 1112.
  • the thickness of the dense substrate 111 is greater than 2 mm, the liquid supplying requirement cannot be met, thereby leading to a decrease of the amount of aerosols, a great heat loss, and high costs of the dense substrate 111.
  • the thickness of the dense substrate 111 is less than 0.1 mm, the intensity of the dense substrate 111 cannot be ensured, which is not conducive to improve the performance of the electronic atomizing device.
  • the thickness of the dense substrate 111 ranges from 0.3 mm to 0.8 mm. It should be understood that the thickness of the dense substrate 111 is selected according to an actual requirement.
  • the ratio of the thickness of the dense substrate 111 to the diameter of the micropores 1113 ranges from 20:1 to 3:1 to improve a liquid supplying capability.
  • the ratio of the thickness of the dense substrate 111 to the diameter of the micropores 1113 is greater than 20:1, the aerosol-generation substance supplied through the capillary force of each of the plurality of micropores 1113 can hardly meet an atomizing requirement, which easily leads to dry burning and a decrease of the amount of aerosols generated in single atomiation.
  • the aerosol-generation substance may easily leak out from each of the plurality of micropores 1113 to cause a waste and lead to a decrease of the atomizing efficiency, thereby leading a decrease of the total amount of aerosols.
  • the ratio of the thickness of the dense substrate 111 to the diameter of the micropores 1113 ranges from 15:1 to 5:1.
  • the ratio of a distance between centers of two adjacent micropores 1113 to the diameter of the micropores 1113 ranges from 3:1 to 1.5:1, such that the intensity of the dense substrate 111 is improved as much as possible in a case that the plurality of micropores 1113 on the dense substrate 111 have the liquid supplying capability.
  • the ratio of the distance between centers of two adjacent micropores 1113 to the diameter of the micropores 1113 ranges from 3:1 to 2:1.
  • the ratio of the distance between centers of two adjacent micropores 1113 to the diameter of the micropores 1113 ranges from 3:1 to 2.5:1.
  • the heating component 112 may be a component such as a heating sheet, a heating film, or a heating mesh to heat and atomize the aerosol-generation substance.
  • the heating component 112 may be arranged inside the dense substrate 111.
  • the dense substrate 111 is at least partially conductive to serve as the heating component 112.
  • the aerosol-generation substance may be atomized through a manner such as microwave heating or laser heating, etc., which is specifically designed as required.
  • the plurality of micropores 1113 are merely arranged on a part of the surface of the dense substrate 111 in an array. Specifically, a microporous array region 1114 and a blank region 1115 arranged surrounding a periphery of the microporous array region 1114 are arranged on the dense substrate 111.
  • the microporous array region 1114 includes the plurality of micropores 1113, and no micropore 1113 is arranged on the blank region 1115.
  • a blank region 1115 is arranged surrounding the microporous array region 1114 only when a distance between a micropore 1113 that is closest to the boundary of the dense substrate 111 and the boundary of the dense substrate 111 is greater than the diameter of the dense substrate 111.
  • the aerosol-generation substance in the plurality of first grooves 1116a may not reflux to the liquid storage cavity 14, and the aerosol-generation substance in the plurality of first grooves 1116a is directly atomized, such that repeated heating is avoided, and an aerosol reduction degree is relatively high.
  • a certain amount of aerosol-generation substances may be stored in the plurality of first grooves 1116a, and dry burning may not occur even if the user inversely places the electronic atomizing device and inhales for several times during next use.
  • the width of the first groove 1116a ranges from 1 ⁇ m to 100 ⁇ m.
  • the width of the first groove 1116a is greater than 100 ⁇ m, the capillary force of the plurality of first grooves 1116a is not strong, and the atomizing efficiency is not apparently improved.
  • the width of the first groove 1116a is less than 1 ⁇ m, the flow resistance is excessively great, such that the aerosol-generation substance flows slow.
  • the width of the first groove 1116a is less than or equal to 1.2 times of the diameter of the micropores 1113, thereby ensuring that the capillary force of the plurality of first grooves 1116a meets a requirement.
  • the depth of the first groove 1116a ranges from 1 ⁇ m to 200 ⁇ m.
  • the depth of the first groove 1116a is less than 1 ⁇ m, the capillary force of the plurality of first grooves 1116a is not strong, and the aerosol-generation substance in the plurality of micropores 1113 can be hardly guided to the plurality of first grooves 1116a, thereby leading to dry burning in the plurality of first grooves 1116a.
  • the depth of the first groove 1116a is greater than 200 ⁇ m, e- liquid explosion may easily occur, the heating film (the heating component 112) can be hardly formed in the plurality of first grooves 1116a.
  • the plurality of first grooves 1116a are defined parallel to each other, and the length direction of each of the plurality of first grooves 1116a is parallel to a first direction; and a first protruding bar 1116b is arranged between two adjacent first grooves 1116a (as shown in FIG. 7, FIG. 7 is a structural schematic view of a first concave-convex structure according to an embodiment of the heating body provided in FIG. 3 ).
  • the first direction is a direction approaching the negative electrode 114 along the positive electrode 113.
  • the plurality of micropores 1113 are defined in an array and the array includes a plurality of micropore rows parallel to the first direction, and each of the plurality of first grooves 1116a at least corresponds to one row of the plurality of micropores parallel to the first direction.
  • the first concave-convex structure 1116 includes a plurality of first grooves 1116a and a plurality of first protruding bars 1116b.
  • the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the bottom surfaces of the plurality of first grooves 1116a (as shown in FIG. 7 ). Or the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the end surfaces of the plurality of first protruding bars 1116b that are away from the liquid absorbing surface 1111.
  • some of the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are arranged on the bottom surfaces of the plurality of first grooves 1116a, and the other end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are arranged on the end surfaces of the plurality of first protruding bars 1116b that are away from the liquid absorbing surface 1111.
  • a part of the end opening of the micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on the bottom surface of each of the plurality of first grooves 1116a, and the other part of the end opening of the micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on the end surface of each of the plurality of first protruding bars 1116b that is away from the liquid absorbing surface 1111.
  • the heating film includes a first part, a second part, and a third part.
  • the first part of the heating film (the heating component 112) is arranged on the side wall and the bottom wall of each of the plurality of first grooves 1116a
  • the second part is arranged on the end surface of each of the plurality of first protruding bars 1116b that is away from the liquid absorbing surface 1111
  • the third part extends to the pore wall of a corresponding micropore 1113.
  • the part of the heating film that is arranged on the side wall and/or the bottom wall of each of the plurality of first grooves 1116a is directly electrically connected to the positive electrode 113 and the negative electrode 114, a current flows through the part of the heating film arranged on the side wall and/or the bottom wall of each of the plurality of first grooves 1116a, such that heat may be directly generated to heat the aerosol- generation substrate in the plurality of first grooves 1116a and the plurality of micropores 1113, thereby improving the energy utilization.
  • the plurality of first grooves 1116a are defined parallel to each other, and the length direction of each of the plurality of first grooves 1116a is parallel to a second direction.
  • a second protruding bar 1116c is arranged between two adjacent first grooves 1116a (as shown in FIG. 8, FIG. 8 is a structural schematic view of a first concave-convex structure according to another embodiment of the heating body provided in FIG. 3 ).
  • the second direction intersects with the first direction. For example, an angle between the second direction and the first direction is 90 degrees.
  • the plurality of micropores 1113 are defined in an array and the array includes a plurality of micropore columns parallel to the second direction, and each of the plurality of first grooves 1116a at least corresponds to one row of the plurality of micropores parallel to the second direction.
  • the first concave-convex structure 1116 includes a plurality of first grooves 1116a and a plurality of second protruding bars 1116c. It should be understood that the angle between the second direction and the first direction is not limited to 90 degrees and may also be an acute angle or an obtuse angle.
  • the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the bottom surfaces of the plurality of first grooves 1116a (as shown in FIG. 8 ). Or the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the end surfaces of the plurality of second protruding bars 1116c that are away from the liquid absorbing surface 1111.
  • an end opening of a micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on a bottom surface of each of the plurality of first grooves 1116a (as shown in FIG. 8 ). Or the end opening of the micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on an end surface of each of the plurality of second protruding bars 1116c that is away from the liquid absorbing surface 1111.
  • the concave-convex structure 1116 include a plurality of first grooves 1116a extending along the first direction and a plurality of second grooves 1116e extending along the second direction, and the plurality of first grooves 1116a and the plurality of second grooves 1116e are defined in an intersecting manner.
  • a bump 1116d is arranged between two adjacent first grooves 1116a and between two adjacent second grooves 1116e (as shown in FIG. 9, FIG. 9 is a structural schematic view of a first concave-convex structure according to still another embodiment of the heating body provided in FIG. 3 ).
  • the first direction is a direction approaching the negative electrode 114 along the positive electrode 113, and the second direction intersects with the first direction.
  • an angle between the second direction and the first direction is 90 degrees.
  • the first concave-convex structure 1116 includes a plurality of first grooves 1116a, a plurality of second grooves 1116e, and a plurality of bumps 1116d. It can be understood that, the angle between the second direction and the first direction is not limited to 90 degrees and may also be an acute angle or an obtuse angle.
  • the plurality of first grooves 1116a and the plurality of second grooves 1116e are communicated in an intersecting manner to form a mesh structure.
  • the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the bottom surfaces of the plurality of first grooves 1116a (as shown in FIG. 9 ). Or the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the end surfaces of the plurality of bumps 1116d that are away from the liquid absorbing surface 1111.
  • some of the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are arranged on the bottom surfaces of the plurality of first grooves 1116a, and the other end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are arranged on the end surfaces of the plurality of bumps 1116d that are away from the liquid absorbing surface 1111.
  • an end opening of a micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on a bottom surface of each of the plurality of first grooves 1116a (as shown in FIG. 9 ). Or the end opening of the micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on an end surface of each of the plurality of bumps 1116d that is away from the liquid absorbing surface 1111.
  • a part of the end opening of the same micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on the bottom surface of each of the plurality of first grooves 1116a, and the other part of the end opening of the same micropore 1113 that is away from the liquid absorbing surface 1111 is arranged on the end surface of each of the plurality of bumps 1116d that is away from the liquid absorbing surface 1111.
  • the plurality of first grooves 1116a cooperate with the plurality of second grooves 1116e to form a plurality of bumps 1116d arranged in an array.
  • the plurality of micropores 1113 are arranged in an array and the array includes a plurality of micropore rows parallel to the first direction and a plurality of micropore columns parallel to the second direction.
  • An extending direction of each of the plurality of first grooves 1116a is parallel to the first direction, and each of the plurality of first grooves 1116a at least corresponds to one row of the plurality of micropores parallel to the first direction.
  • each of the plurality of second grooves 1116e is parallel to the second direction, and each of the plurality of second grooves 1116e at least corresponds to one column of the plurality of micropores parallel to the second direction.
  • the plurality of first grooves 1116a and the plurality of second grooves 1116e are communicated in an intersecting manner to form a mesh structure.
  • the plurality of micropores 1113 are arranged in an array.
  • the end openings of the plurality of micropores 1113 that are away from the liquid absorbing surface 1111 are all arranged on the bottom surfaces of the plurality of first grooves 1116a.
  • Each of the plurality of first grooves 1116a corresponds to one row of the plurality of micropores parallel to the first direction
  • each of the plurality of second grooves 1116e corresponds to one column of the plurality of micropores parallel to the second direction.
  • a plurality of rows of bumps 1116d and a plurality of rows of micropores 1113 are arranged alternately, and a plurality of columns of bumps 1116d and a plurality of columns of micropores 1113 are arranged alternately (as shown in FIG. 9 ).
  • the heating film includes a first part, a second part, a third part, and a fourth part.
  • the first part of the heating film (the heating component 112) is arranged on a side wall and a bottom wall of each of the plurality of first grooves 1116a
  • the second part is arranged on a side wall and a bottom wall of each of the plurality of second grooves 1116e
  • the third part is arranged on the end surface of each of the plurality of bumps 1116d that is away from the liquid absorbing surface 1111
  • the fourth part extends to a pore wall of a corresponding micropore 1113 (as shown in FIG. 6 ).
  • the part of the heating film that is arranged on the side wall and/or the bottom wall of each of the plurality of first grooves 1116a is directly electrically connected to the positive electrode 113 and the negative electrode 114, a current flows through the part of the heating film arranged on the side wall and/or the bottom wall of each of the plurality of first grooves 1116a, such that heat may be directly generated to heat the aerosol-generation substance in the plurality of first grooves 1116a and the plurality of micropores 1113, thereby improving the energy utilization.
  • the heating film when the atomizing surface of the heating body is a smooth surface and a heating film is formed on the atomizing surface through a physical vapor deposition process, the heating film includes a plane heating film, an in-hole heating film, and a corner connection region heating film.
  • the plane heating film is arranged on the atomizing surface, the in-hole heating film is arranged in each of the plurality of micropores, and the corner connection region heating film connects the plane heating film and the in-hole heating film.
  • the in-hole heating film is a heat conduction region.
  • the in-hole heating film is a heat conduction region, such that the energy utilization of the heating film is relatively low, which is intuitively presented as a small atomizing amount.
  • heat dissipation is only performed on the in-hole heating film to implement heat dissipation on the entire heating film, such that a problem such as a risk of dry burning or burnout is synchronously caused.
  • a wetting structure is configured as the atomizing surface 1112 of the dense substrate 111.
  • the atomizing surface 1112 includes the first concave-convex structure 1116, and the heating film (the heating component 112) is also formed on the side wall and the bottom wall of each of the plurality of first grooves 1116a of the first concave-convex structure 1116, such that the effective heating area of the heating component 112 is enlarged, thereby improving the energy utilization.
  • a part of the aerosol-generation substance is guided by the plurality of first grooves 1116a to the grooves for atomization, thereby being conducive to improve the atomizing efficiency.
  • the aerosol-generation substance in the plurality of micropores may be effectively prevented from being emptied instantly due to excessive atomization in the plurality of micropores, and a sound of air-back of inhalation caused by intaking air may be effectively avoided.
  • the contact area between the aerosol-generation substance and the heating component 112 is enlarged through the first concave-convex structure 1116, such that a heat dissipation area of the heating component 112 is enlarged, thereby effectively preventing dry burning.
  • the inventor further found that compared with a case that the atomizing surface is a smooth surface and the heating film is deposited on the smooth surface, the vaporization surface 1112 being a wetting structure and the heating film being deposited on a coarse surface may apparently increases the atomizing amount.
  • the atomizing amount is increased from 6.2 mg/puff to 8.5 mg/puff.
  • dirt accumulation is also apparently reduced, and the taste and sweetness of aerosols are also improved.
  • a shape of a longitudinal section of each of the plurality of first grooves 1116a is a rectangle, a triangle, a circle, an arc, V/U, or ⁇ , which is specifically designed as required.
  • the longitudinal section refers to a section along a direction perpendicular to the dense substrate 111.
  • the first concave-convex structure 1116 on the atomizing surface 1112 may cover a region on which the heating film (the heating component 112) is arranged. Or the first concave-convex structure 1116 on the atomizing surface 1112 may only cover a part of the region on which the heating film (the heating component 112) is arranged. Or the first concave-convex structure 1116 on the atomizing surface 1112 may cover a part of the region on which the heating film (the heating component 112) is arranged and cover a part of the blank region 1115. In this way, the energy utilization of the heating component 112 may be improved to some extent.
  • the atomizing surface 1112 is configured as a frosted structure or a sandblasting structure to form a wetting structure, and same technical effects may be implemented when compared with the wetting structure formed by the first concave-convex structure 1116 included by the atomizing surface 1112, which are not described herein again.
  • Structures of the heating body 11 provided in FIG. 10 and the heating body 11 provided in FIG. 3 are substantially the same, and a difference lies in different structures of the liquid absorbing surface 1111 of the dense substrate 111. For the same parts of the heating body 11, details are not described herein again.
  • the liquid absorbing surface 1111 includes a second concave-convex structure 1117
  • the second concave-convex structure 1117 includes a plurality of third grooves 1117a; and for a specific arrangement manner of the second concave-convex structure 1117, reference may be made to the specific arrangement manner of the first concave-convex structure 1116, and details are not described herein again.
  • the plurality of third grooves 1117a are fluidly coupled to the plurality of micropores 1113.
  • the present disclosure further provides a heating body 11.
  • a structure of the heating body 11 is substantially the same as the structure of the heating body 11 provided in FIG. 3 , and a difference lies in different structures of the heating component 112.
  • the heating component 112 is a heating film
  • the heating film is a lipophilic structure and/or the surface of the heating film that is away from the dense substrate 111 includes a frosted structure or a sandblasting structure, such that a contact angle is small and the wettability is high, thereby being conducive to improve the energy utilization and the atomizing efficiency.
  • the dense substrate is quartz glass
  • the thickness of the dense substrate is 400 ⁇ m
  • the diameter of the micropore is 40 ⁇ m
  • a distance between two adjacent pores is 80 ⁇ m
  • the heating film is a thin film
  • the power of the heating film is 6.5 W
  • the inventor performs atomizing amount comparison experiment on heating bodies (referring to FIG. 4 ) whose atomizing surface is a smooth surface and whose atomizing surface is defined a plurality of grooves.
  • the depth of the groove ranges from 15 ⁇ m to 25 ⁇ m
  • the width of the groove ranges from 30 ⁇ m to 40 ⁇ m
  • a result indicates that the atomizing amount is increased from 6.2 mg/per inhalation to 7.6 mg/per inhalation. That is, in a case that other conditions remain unchanged, by defining grooves on the atomizing surface of the dense substrate and arranging a part of the heating component in the grooves, the thermal utilization and the atomizing amount may be greatly improved.
  • FIG. 11 is a structural schematic view of a heating body according to a third embodiment of the atomizer provided in FIG. 2 .
  • FIG. 11 Structures of the heating body 11 provided in FIG. 11 and the heating body 11 provided in FIG. 3 are substantially the same, and a difference lies in that the heating body 11 provided in FIG. 11 further includes a first protective film 115 and a second protective film 116. For the same parts of the two heating body, details are not described herein again.
  • the first protective film 115 is arranged on the surface of the heating component 112 that is away from the dense substrate 111, and the material of the first protective film 115 is a non-conductive material which can resist corrosion of the aerosol-generation substance.
  • the second protective film 116 is arranged on surfaces of the positive electrode 113 and the negative electrode 114 that are away from the dense substrate 111, and the material of the second protective film 116 is a conductive material which can resist corrosion of the aerosol-generation substance.
  • the first protective film 115 and the second protective film 116 effectively prevents corrosion of the aerosol-generation substance on the heating component 112, the positive electrode 113, and the negative electrode 114, thereby being conducive to improve the service life of the heating body 11.
  • the material of the first protective film 115 is ceramic or glass. Since the material of the heating component 112 is metal, the thermal expansion coefficient of ceramic or glass matches the thermal expansion coefficient of the metal heating component 112, and the adhesion of ceramic or glass matches the adhesion of the metal heating component 112. Ceramic or glass is used as the first protective film 115, such that the first protective film 115 can hardly fall off a heating portion 1121, such that the heating portion is well protected.
  • the material of the first protective film 115 is ceramic
  • the material of the ceramic may be one or more of aluminum nitride, silicon nitride, aluminum oxide, silicon oxide, silicon carbide, or zirconium oxide, which is specifically selected as required.
  • the thickness of the first protective film 115 ranges from 10 nm to 1000 nm.
  • the thickness of the second protective film 116 ranges from 10 nm to 2000 nm.
  • the material of the second protective film 116 is conductive ceramic or metal.
  • the second protective film 116 is made of a conductive material, such that the second protective film 116 does not affect the electrical connection between the positive electrode 113 and the power supply assembly 2 and the electrical connection between the negative electrode 114 and the power supply assembly 2 while protecting the positive electrode 113 and the negative electrode 114 from corrosion of the aerosol-generation substance.
  • Conductive ceramic or metal is used as the second protective film 116, which is conducive to reduce contact resistance.
  • the material of the second protective film 116 is conductive ceramic
  • the material of the conductive ceramic is one or more of titanium nitride and titanium diboride. It should be understood that conductive ceramic has better corrosion resistance of aerosol-generation substance than metal.
  • FIG. 12 is a structural schematic view of a heating body according to a fourth embodiment of the atomizer provided in FIG. 2 .
  • the material of the liquid guiding member 117 is a porous material, such as porous ceramic or a cotton core, etc.
  • the material of the liquid guiding member 117 is dense, such as dense ceramic or glass, etc.
  • a plurality of through holes are defined in the liquid guiding member 117, and the plurality of through holes have the capillary force.
  • the liquid guiding member 117 is in contact with the liquid absorbing surface 1111 of the dense substrate 111 (as shown in FIG. 12 ).
  • the aerosol-generation substance is guided to the liquid absorbing surface 1111 of the dense substrate 111 through the capillary force of the liquid guiding member 117.
  • liquid guiding member 117 By arranging the liquid guiding member 117 on one side of the liquid absorbing surface 1111 of the dense substrate 111, a liquid supplying speed is further controlled.
  • FIG. 13 is a structural schematic view of a heating body according to a fifth embodiment of the atomizer provided in FIG. 2 .
  • the plurality of transverse holes 1118 fluidly couples the plurality of micropores 1113.
  • the axis of each of the plurality of transverse holes 1118 intersects with the axis of each of the plurality of micropores 1113.
  • the axis of each of the plurality of transverse holes 1118 is perpendicular to the axis of each of the plurality of micropores 1113.
  • the plurality of transverse holes 1118 may supplement aerosol-generation substances to the blocked micropores 1113, such that e-liquid is supplied to the atomizing surface 1112 in time, thereby preventing dry burning.
  • the plurality of transverse holes 1118 further have a liquid storage function, thereby avoiding burnout when the user inversely places the electronic atomizing device and inhales for at least two times.
  • heating body 11 of the first embodiment may be randomly combined as required.

Landscapes

  • Special Spraying Apparatus (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Nozzles (AREA)

Claims (15)

  1. Ein Heizkörper (11), der in einer elektronischen Zerstäubungsvorrichtung (100) verwendet wird und dazu eingerichtet ist, eine Aerosolerzeugungssubstanz zu erhitzen und zu zerstäuben, wobei der Heizkörper (11) umfasst:
    ein dichtes Substrat (111), das eine flüssigkeitsabsorbierende Oberfläche (1111) und eine dieser gegenüberliegend angeordnete Zerstäubungsoberfläche (1112) aufweist;
    wobei eine Vielzahl von Mikroporen (1113) im dichten Träger (111) ausgebildet ist, die sich von der flüssigkeitsabsorbierenden Oberfläche (1111) bis zur Zerstäubungsoberfläche (1112) hindurch erstrecken, und wobei die Zerstäubungsoberfläche (1112) eine benetzende Struktur ist, auf der eine Oberflächenbehandlung durchgeführt wird, wobei die benetzende Struktur fluidisch mit den Mikroporen (1113) gekoppelt ist.
    wobei die Zerstäubungsoberfläche (1112) eine erste konkav-konvexe Struktur (1116) aufweist, um die benetzende Struktur zu bilden.
    wobei die erste konkav-konvexe Struktur (1116) eine Vielzahl von ersten Rillen (1116a) und eine Vielzahl von zweiten Rillen (1116e) umfasst, wobei die Vielzahl von ersten Rillen (1116a) und die Vielzahl von zweiten Rillen (1116e) strömungsmäßig mit der Vielzahl von Mikroporen (1113) verbunden sind; die Vielzahl von ersten Rillen (1116a) sind parallel zueinander ausgebildet, wobei die Längsrichtung der Vielzahl von ersten Rillen (1116a) parallel zu einer ersten Richtung verläuft; die Vielzahl von zweiten Rillen (1116e) sind ebenfalls parallel zueinander ausgebildet, wobei die Längsrichtung der Vielzahl von zweiten Rillen (1116e) parallel zu einer zweiten Richtung verläuft; ein Vorsprung (1116d) ist jeweils zwischen zwei benachbarten ersten Rillen (1116a) sowie zwischen zwei benachbarten zweiten Rillen (1116e) angeordnet; wobei die erste Richtung die zweite Richtung schneidet.
    dadurch gekennzeichnet, dass der Heizkörper (11) ferner ein Heizmodul (112) umfasst, wobei das Heizmodul (112) einen ersten Teil, einen zweiten Teil, einen dritten Teil und einen vierten Teil aufweist; der erste Teil ist an der Seitenwand und der Bodenwand jeder der Vielzahl von ersten Rillen (1116a) angeordnet, der zweite Teil ist an der Seitenwand und der Bodenwand jeder der Vielzahl von zweiten Rillen (1116e) angeordnet, der dritte Teil ist an einer Stirnfläche jeder der Vielzahl von Vorsprüngen (1116d) angeordnet, die der flüssigkeitsabsorbierenden Oberfläche (1111) abgewandt ist, und der vierte Teil erstreckt sich bis zur Porenwand einer entsprechenden Mikropore (1113).
  2. Der Heizkörper (11) gemäß Anspruch 1, wobei die Endöffnungen der Vielzahl von Mikroporen (1113), die von der flüssigkeitsabsorbierenden Oberfläche (1111) abgewandt sind, sämtlich an den Bodenflächen der Vielzahl von ersten Rillen (1116a) angeordnet sind; oder
    Die Endöffnungen der Vielzahl von Mikroporen (1113), die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind, sind alle an den Endflächen der Vielzahl von Vorsprüngen (1116d) angeordnet, die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind; oder
    Einige Endöffnungen der Vielzahl von Mikroporen (1113), die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind, sind an den Bodenflächen der Vielzahl von ersten Rillen (1116a) angeordnet, und die anderen Endöffnungen der Vielzahl von Mikroporen (1113), die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind, sind an den Endflächen der Vielzahl von Vorsprüngen (1116d) angeordnet, die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind.
  3. Der Heizkörper (11) gemäß Anspruch 2, wobei die Endöffnungen der Vielzahl von Mikroporen (1113), die von der flüssigkeitsabsorbierenden Oberfläche (1111) entfernt sind, sämtlich an den Bodenflächen der Vielzahl von ersten Rillen (1116a) und der zweiten Rillen (1116e) angeordnet sind;
    wobei die Vielzahl von Mikroporen (1113) in einer Matrix angeordnet ist, jede der Vielzahl von ersten Rillen (1116a) einer Reihe von Mikroporen (1113) entspricht und jede der Vielzahl von zweiten Rillen (1116e) einer Spalte von Mikroporen (1113) entspricht; und eine Vielzahl von Reihen von Vorsprüngen (1116d) und eine Vielzahl von Reihen von Mikroporen (1113) abwechselnd angeordnet sind, sowie eine Vielzahl von Spalten von Vorsprüngen (1116d) und eine Vielzahl von Spalten von Mikroporen (1113) abwechselnd angeordnet sind.
  4. Der Heizkörper (11) gemäß einem der Ansprüche 1 bis 3, wobei das Heizmodul (112) auf der Oberfläche der Benetzungsstruktur angeordnet ist, wobei das Heizmodul (112) dazu konfiguriert ist, die Aerosolbildungssubstanz zu erhitzen und zu vernebeln, und wobei das Heizmodul (112) seine jeweiligen Mikroporen (1113) freilegt.
  5. Der Heizkörper (11) gemäß Anspruch 1, wobei die Breite der ersten Rille (1116a) im Bereich von 1 µm bis 100 µm liegt;
    oder die Breite der ersten Rille (1116a) höchstens dem 1,2-Fachen des Durchmessers der Mikroporen (1113) entspricht;
    oder die Tiefe der ersten Rille (1116a) im Bereich von 1 µm bis 200 µm liegt; oder die Tiefe der ersten Rille (1116a) im Bereich von 1 µm bis 50 µm liegt.
  6. Der Heizkörper (11) gemäß Anspruch 1, wobei die Vielzahl von Mikroporen (1113) in einer Matrix angeordnet ist, wobei die Matrix eine Vielzahl von Mikroporenreihen umfasst, die parallel zur ersten Richtung verlaufen, und eine Vielzahl von Mikroporensäulen, die parallel zur zweiten Richtung verlaufen, und wobei jede der Vielzahl von ersten Rillen (1116a) mindestens einer Reihe der Vielzahl von Mikroporen entspricht, die parallel zur ersten Richtung verlaufen,
    und jede der Vielzahl von zweiten Rillen (1116e) mindestens einer Spalte der Vielzahl von Mikroporen entspricht, die parallel zur zweiten Richtung verläuft; wobei die Vielzahl von ersten Rillen (1116a) und die Vielzahl von zweiten Rillen (1116e) sich kreuzend miteinander in Verbindung stehen.
  7. Der Heizkörper (11) gemäß Anspruch 4, wobei die Dicke des Heizmoduls (112) im Bereich von 200 nm bis 5 µm liegt, und das Material des Heizmoduls (112) eines oder mehrere der folgenden Materialien ist: Aluminium oder Aluminiumlegierung, Kupfer oder Kupferlegierung, Silber oder Silberlegierung, Nickel oder Nicklegierung, Chrom oder Chromlegierung, Platin oder Platinlegierung, Titan oder Titanlegierung, Zirkonium oder Zirkoniumlegierung, Palladium oder Palladiumlegierung, Eisen oder Eisenlegierung, Gold oder Goldlegierung, Molybdän oder Molybdänlegierung, Niob oder Nioblegierung sowie Tantal oder Tantallegierung;
    oder die Dicke des Heizmoduls (112) im Bereich von 200 nm bis 10 µm liegt, und das Material des Heizmoduls (112) eines oder mehrere der folgenden Materialien ist: rostfreier Stahl, Nickel-Chrom-Eisen-Legierung oder korrosionsbeständige Nickelbasislegierung;
    wobei das Heizmodul (112) eine Heizfolie ist, die mittels eines physikalischen Gasphasenabscheidungsverfahrens (PVD-Verfahren) in der Benetzungsstruktur abgeschieden ist..
  8. Der Heizkörper (11) gemäß Anspruch 1, wobei die Zerstäubungsoberfläche eine mattierte Struktur oder eine Sandstrahlstruktur zur Ausbildung der Benetzungsstruktur ist;
    oder die flüssigkeitsabsorbierende Oberfläche (1111) eine mattierte Struktur oder eine Sandstrahlstruktur ist.
  9. Der Heizkörper (11) gemäß Anspruch 1, wobei die flüssigkeitsabsorbierende Oberfläche (1111) eine zweite konkav-konvexe Struktur (1117) aufweist, wobei die zweite konkav-konvexe Struktur (1117) eine Vielzahl von dritten Rillen (1117a) umfasst, und wobei die Vielzahl von dritten Rillen (1117a) mit der Vielzahl von Mikroporen (1113) fluidisch verbunden sind.
  10. Der Heizkörper (11) gemäß Anspruch 1, wobei das Material des dichten Substrats (111) Quarz, Glas oder dichte Keramik ist, und wobei die Vielzahl von Mikroporen (1113) geordnet ausgelegt sind.
  11. Der Heizkörper (11) gemäß Anspruch 1, wobei die Vielzahl von Mikroporen (1113) gerade Durchgangsbohrungen sind, und wobei die Achse jeder der Vielzahl von Mikroporen (1113) senkrecht zum dichten Substrat (111) steht.
  12. Der Heizkörper (11) gemäß Anspruch 1, der ferner ein Flüssigkeitsleitglied (117) umfasst, wobei
    der Heizkörper (11) ferner ein Flüssigkeitsleitglied (117) umfasst, das eine Vielzahl von Poren definiert,
    das Flüssigkeitsleitglied (117) und die flüssigkeitsabsorbierende Oberfläche (1111) des dichten Substrats (111) voneinander abgesetzt sind, um einen Spalt zu bilden; oder
    das Flüssigkeitsleitglied (117) in Kontakt mit der flüssigkeitsabsorbierenden Oberfläche (1111) des dichten Substrats (111) steht.
  13. Der Heizkörper (11) gemäß Anspruch 1, wobei eine Vielzahl von Querbohrungen (1118) ferner im dichten Substrat (111) ausgebildet ist, wobei die Vielzahl von Querbohrungen (1118) fluidisch mit der Vielzahl von Mikroporen (1113) verbunden ist, und die Achse jeder der Vielzahl von Querbohrungen (1118) die Achse jeder der Vielzahl von Mikroporen (1113) schneidet.
  14. Ein Zerstäuber (1), umfassend:
    einen Flüssigkeitsspeicherhohlraum (14), der dazu konfiguriert ist, eine Aerosolbildungssubstanz zu speichern; und
    einen Heizkörper (11), der fluidisch mit dem Flüssigkeitsspeicherhohlraum (14) verbunden ist;
    wobei der Heizkörper (11) der Heizkörper (11) gemäß einem der Ansprüche 1 bis 13 ist.
  15. Eine elektronische Zerstäubungsvorrichtung (100), umfassend:
    den Zerstäuber (1) gemäß Anspruch 14; und
    eine Energieversorgungseinheit (2), die dazu konfiguriert ist, elektrische Energie für den Betrieb des Zerstäubers (1) bereitzustellen.
EP22759005.6A 2022-05-13 2022-05-13 Heizkörper, zerstäuber und elektronische zerstäubungsvorrichtung Active EP4159057B1 (de)

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