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WO2025092507A1 - Dispositif d'atomisation électronique - Google Patents

Dispositif d'atomisation électronique Download PDF

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Publication number
WO2025092507A1
WO2025092507A1 PCT/CN2024/126412 CN2024126412W WO2025092507A1 WO 2025092507 A1 WO2025092507 A1 WO 2025092507A1 CN 2024126412 W CN2024126412 W CN 2024126412W WO 2025092507 A1 WO2025092507 A1 WO 2025092507A1
Authority
WO
WIPO (PCT)
Prior art keywords
air inlet
atomization device
electronic atomization
sensing surface
airflow
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
PCT/CN2024/126412
Other languages
English (en)
Chinese (zh)
Inventor
苏良杰
林福文
徐中立
李永海
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 FirstUnion Technology Co Ltd
Original Assignee
Shenzhen FirstUnion Technology Co 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 FirstUnion Technology Co Ltd filed Critical Shenzhen FirstUnion Technology Co Ltd
Publication of WO2025092507A1 publication Critical patent/WO2025092507A1/fr
Pending 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
    • 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
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/49—Child proofing
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors

Definitions

  • the embodiments of the present application relate to the field of electronic atomization technology, and in particular, to an electronic atomization device.
  • Smoking articles eg, cigarettes, cigars, etc.
  • People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.
  • a heating device that releases a compound by heating rather than burning a material.
  • the material may be tobacco or other non-tobacco products that may or may not contain nicotine.
  • electronic atomization devices which typically contain a liquid that is heated to vaporize it, thereby producing an inhalable aerosol.
  • a known electronic atomization device has an air inlet and an airflow sensor arranged at a distal end; the airflow sensor has a first side and a second side that are airflow-isolated from each other; wherein the first side is connected to an airflow channel passing through the electronic atomization device to sense the pressure in the airflow channel during inhalation, the second side is connected to the outside atmosphere to sense the pressure of the outside atmosphere, and the user's inhalation is determined when the difference between the pressure sensed by the first side and the outside atmospheric pressure sensed by the second side is greater than a preset threshold.
  • This type of electronic atomization device usually closes the air inlet when it is not desired to output aerosol to prevent air from entering and exiting.
  • the first side of the airflow sensor can still be triggered by the pressure drop in the airflow channel caused by the inhalation action, thereby forming a pressure difference exceeding a threshold with the second side, posing a safety hazard.
  • An embodiment of the present application provides an electronic atomization device, comprising:
  • a liquid storage chamber used for storing a liquid matrix
  • a heating element for heating the liquid matrix to generate an aerosol
  • the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;
  • a partition member that divides the airflow channel into a first portion located on a first side of the partition member and a second portion located on a second side of the partition member;
  • the airflow sensor is used to sense the airflow flowing through the airflow channel;
  • the airflow sensor includes a first sensing surface and a second sensing surface which are respectively arranged in the first part and the second part and are opposite to each other, and the first sensing surface is connected to the airflow through the second air inlet and the second sensing surface.
  • the cross-sectional area of the first air inlet is greater than the minimum cross-sectional area of the second air inlet; more preferably, the cross-sectional area of the first air inlet is greater than 1.5 times the minimum cross-sectional area of the second air inlet.
  • the minimum cross-sectional area of the second air inlet is between 0.8 mm 2 and 2.3 mm 2 ; preferably, there is more than one second air inlet.
  • a cross-sectional area of at least a portion of the second air inlet decreases along the air flow direction.
  • the second air inlet is configured to cause a pressure drop during use that can drive the sensor to start; preferably, the second air inlet is configured to form a pressure difference between 100Pa and 600Pa during use.
  • it also includes:
  • a movable sealing element is arranged to be movable between a closed position and an open position to selectively close the first air inlet in the closed position and to open the first air inlet in the open position.
  • the axis of the airflow sensor is substantially parallel to the longitudinal axis of the electronic atomization device.
  • the first sensing surface and the second sensing surface are arranged opposite to each other in the longitudinal direction of the electronic atomization device;
  • the airflow sensor is arranged away from the longitudinal center axis of the electronic atomization device.
  • it also includes:
  • the distance between the airflow sensor and the near end is smaller than the distance between the airflow sensor and the far end.
  • the heating element is arranged between the air outlet and the partition.
  • it also includes:
  • the battery core is used to provide power; along the longitudinal direction of the electronic atomization device, the battery core and the liquid storage chamber are arranged at intervals;
  • the air flow sensor is located between the battery core and the liquid storage chamber; or the air flow sensor is located between the first air inlet and the battery core.
  • it also includes:
  • a bracket for receiving or holding a heating element
  • the air flow sensor and the partition are housed or held in the bracket and are arranged away from the liquid storage chamber.
  • the second air inlet is a through hole on the partition; and/or at least a portion of an inner surface of the second air inlet is defined by the partition.
  • the partition wraps a portion of the surface of the airflow sensor and avoids or exposes at least a portion of the first sensing surface and the second sensing surface.
  • Another embodiment of the present application further provides an electronic atomization device, comprising:
  • a liquid storage chamber used for storing a liquid matrix
  • a heating element for heating the liquid matrix to generate an aerosol
  • the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;
  • the airflow sensor comprises a first sensing surface and a second sensing surface opposite to each other, and senses a difference between a pressure sensed by the first sensing surface and a pressure sensed by the second sensing surface;
  • the first sensing surface and the second sensing surface of the airflow sensor are connected to each other through at least one second air inlet.
  • Another embodiment of the present application further provides an electronic atomization device, comprising:
  • a liquid storage chamber used for storing a liquid matrix
  • a heating element for heating the liquid matrix to generate an aerosol
  • a battery cell for supplying power to the heating element
  • the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;
  • An airflow sensor is used to sense changes in airflow flowing through an electronic atomization device; along the longitudinal direction of the electronic atomization device, the airflow sensor is arranged between the heating element and the battery core; the airflow sensor includes a first sensing surface and a second sensing surface opposite to each other along the longitudinal direction of the electronic atomization device; the first sensing surface is connected to the airflow at the air outlet, and the second sensing surface is connected to the airflow at the first air inlet.
  • the first sensing surface and the second sensing surface of the airflow sensor are respectively connected to the first port and the second port of the second air inlet of the partition.
  • the pressure sensed by the first sensing surface and the pressure sensed by the second sensing surface are basically the same, which is beneficial for preventing false triggering.
  • FIG1 is a schematic structural diagram of an electronic atomization device provided by an embodiment from one viewing angle
  • FIG2 is an exploded schematic diagram of the operating mechanism and the end cover in FIG1 before being assembled
  • FIG3 is an exploded schematic diagram of the operating mechanism and the end cover in FIG2 from another perspective before being assembled;
  • FIG4 is a cross-sectional schematic diagram of the electronic atomization device in FIG1 from one viewing angle
  • FIG5 is a schematic diagram of the sealing element of the operating mechanism in FIG4 moving to a closed position
  • FIG6 is a cross-sectional schematic diagram of a partial component of the electronic atomization device in FIG4 after being assembled on a bracket at one viewing angle;
  • FIG7 is a cross-sectional schematic diagram of the airflow sensor and the partition in FIG6 after being assembled from one viewing angle;
  • FIG8 is a schematic diagram of the airflow sensor and the partition in FIG6 after being assembled from another viewing angle
  • FIG. 9 is a schematic diagram of the airflow sensor and the partition in FIG. 6 after being assembled from another viewing angle.
  • the present application proposes an electronic atomization device for atomizing a liquid matrix to generate an aerosol.
  • Figures 1 and 2 show schematic diagrams of an electronic atomization device 100 of one embodiment, including several components disposed within an outer body or housing.
  • the overall design of the outer body or housing may vary, and the type or configuration of the outer body that may define the overall size and shape of the electronic atomization device 100 may vary.
  • the elongated body may be formed by a single integral housing, or the elongated housing may be formed by two or more separable bodies.
  • the electronic atomization device 100 can have a control body at one end, which has a shell containing one or more reusable components (e.g., a battery such as a rechargeable battery and/or a rechargeable supercapacitor, and various electronic devices for controlling the operation of the product), and an outer body or housing for suction at the other end.
  • a control body at one end, which has a shell containing one or more reusable components (e.g., a battery such as a rechargeable battery and/or a rechargeable supercapacitor, and various electronic devices for controlling the operation of the product), and an outer body or housing for suction at the other end.
  • the outer body or housing of the electronic atomization device 100 substantially defines the outer surface of the electronic atomization device 100; in the specific embodiment shown in FIGS. 1 to 2 , the electronic atomization device 100 includes:
  • housing 10 may be formed from a metal or alloy such as stainless steel, aluminum, or other suitable materials including various plastics (eg, polycarbonate), metal-plating over plastic, ceramics, and the like.
  • a metal or alloy such as stainless steel, aluminum, or other suitable materials including various plastics (eg, polycarbonate), metal-plating over plastic, ceramics, and the like.
  • the housing 10 is formed by several parts. In some embodiments, the housing 10 is open at the distal end 120. As shown in Figures 3 to 5, the housing 10 includes:
  • the first shell 11 and the second shell 12 wherein the first shell 11 is close to or defines a proximal end 110 , and the second shell 12 is close to or defines a distal end 120 .
  • the electronic atomization device 100 further includes:
  • the battery cell 70 is used for power supply and is arranged in the second shell 12 .
  • the electronic atomization device 100 further includes:
  • the end cap 20 is combined with and closes the distal end 120 of the housing 10/second housing 12; the end cap 20 can be removed and disassembled from the distal end 120 of the housing 10/second housing 12. After the end cap 20 is removed or disassembled from the distal end 120 of the housing 10/second housing 12, the distal end 120 of the housing 10 can be opened, so that the battery cell 70 can be taken out or replaced from the distal end 120 of the housing 10/second housing 12. Specifically, after the end cap 20 is removed, the distal end 120 of the housing 10 is opened, so that the battery cell 70 can be taken out or removed from the distal end 120 of the housing 10 by slightly shaking or gently swinging.
  • the assembled rear end cover 20 at least partially extends from the distal end 120 into the housing 10 / second shell 12 ; and a first air inlet 21 is arranged on the end cover 20 for allowing external air to enter the electronic atomization device 100 .
  • the electronic atomization device 100 further includes:
  • a first connecting structure such as a cam is arranged on the connecting element 19, and a second connecting structure such as a slot is arranged on the end cap 20; and in use, a detachable connection is established between the end cap 20 and the connecting element 19 through the cooperation of the first connecting structure such as a cam and the second connecting structure such as a slot.
  • the electronic atomization device 100 further includes:
  • the operating mechanism 30 includes:
  • An operating element 31 An operating element 31 , a sealing element 32 , a connecting element 34 and an elastic element 33 .
  • a sealing element 32 which can be moved under the driving of the operating element 31 to selectively close or open the first air inlet 21;
  • a connecting element 34 connecting the operating element 31 with the sealing element 32 so that a user can drive the movement of the sealing element 32 by operating the operating element 31;
  • the elastic element 33 is arranged between the end cover 20 and the operating element 31 .
  • the user operates the operating element 31 to drive the sealing element 32 to move; for example, the movement may include longitudinal movement of the end cap 20 and/or the housing 10 and/or rotation around the central axis of the end cap 20 and/or the housing 10.
  • the connecting element 34 is a common countersunk screw, which penetrates the sealing element 32 and is connected to the operating element 31 through threads.
  • the sealing element 32 is provided with an avoidance notch 321; and the sealing element 32 can be rotated around the central axis of the end cover 20 and/or the housing 10 by the operating element 31, so that the avoidance notch 321 is aligned with or staggered with the first air inlet 21 on the end cover 20, thereby selectively opening or closing the first air inlet 21.
  • the sealing element 32 is made of a flexible material such as silicone, thermoplastic elastomer, etc.
  • the sealing element 32 in Figure 4 is in the open position, and the avoidance gap 321 is aligned with the first air inlet 21 of the end cover 20, thereby opening the first air inlet 21 to allow external air to enter the electronic atomization device 100; and, the sealing element 32 is driven to rotate around its central axis by the user by rotating the operating element 31 as shown by the arrow P11 in Figure 5.
  • the avoidance gap 321 is staggered with the first air inlet 21 of the end cover 20, so that the first air inlet 21 is blocked or blocked by the sealing element 32, thereby closing the first air inlet 21.
  • the sealing element 32 is provided with a first locking structure such as a convex protrusion; accordingly, the end cover 20 may be provided with a second locking structure such as a groove; when the sealing element 32 When the first air inlet 21 is in the open position/closed position, the first locking structure is coupled to the second locking structure to form a connection to form a locked state, thereby stably maintaining the sealing element 32 in the open position and/or the closed position to prevent the sealing element 32 from rotating between the open position and the closed position.
  • a first locking structure such as a convex protrusion
  • the end cover 20 may be provided with a second locking structure such as a groove
  • the sealing element 32 can be operated by the user by pressing the operating element 31 to move the sealing element 32 in the longitudinal direction, thereby releasing the locked state formed by the connection between the first locking structure and the second locking structure in the open position and/or the closed position, thereby allowing the sealing element 32 to rotate between the open position and the closed position.
  • a plurality of first limiting protrusions 23 extending in the longitudinal direction are arranged on the inner surface of the end cover 20; a second limiting protrusion 311 is arranged on the outer surface of the operating element 31; when the user drives the operating element 31 to rotate from the closed position to the open position, or from the open position to the closed position by means of fingers, a limit is formed by the abutment between the second limiting protrusion 311 and the first limiting protrusion 23, so as to limit the rotation angle of the operating element 31 during the rotation operation.
  • the elastic element 33 is used to provide elastic force to bias the sealing element 32 toward the sealing element 32 away from the proximal end 110, so that the sealing element 32 is driven to bias toward the locked state or remain in the locked state in the open position and/or the closed position.
  • the elastic element 33 includes a linear spring; and in the assembly, the elastic element 33 elastically abuts between the end cap 20 and the operating element 31.
  • the electronic atomization device 100 further includes:
  • the liquid storage chamber 112 and the atomizing assembly are both arranged near the proximal end 110.
  • the electronic atomization device 100 also includes an aerosol output tube 111 arranged in the longitudinal direction, the aerosol output tube 111 at least partially extending in the liquid storage chamber 112, and the liquid storage chamber 112 is formed by the space between the aerosol output tube 111 and the inner surface of the housing 10/first housing 111.
  • the end of the aerosol output tube 111 relative to the proximal end 110 is connected to the air outlet 113 to output the aerosol generated by the atomization of the atomizing assembly to the air outlet 113 for inhalation.
  • the aerosol output tube 111 and the housing 10 / the first shell 111 are integrally molded with a moldable material, and the liquid storage chamber 112 formed after the preparation is closed on the side of the proximal end 110 and open on the side toward the distal end 120 .
  • a first liquid-conducting element 51 is also provided in the housing 10/first housing 111, and the first liquid-conducting element 51 is a layer of sheet-shaped or block-shaped fibers arranged perpendicular to the longitudinal direction of the housing 10/first housing 111.
  • the first liquid-conducting element 51 is made of a flexible capillary fiber material, such as natural cotton fiber, non-woven fiber, etc.; specifically, the first liquid-conducting element 51 includes sheet-shaped liquid-conducting cotton.
  • the first liquid-conducting element 51 includes artificial cotton, or hard artificial cotton or artificial foam made of filamentous polyurethane.
  • the first liquid-conducting element 51 uses 138# hard synthetic organic polymer fiber with a density of 0.1 to 0.9 mg/mm 3 ; the overall weight of the first liquid-conducting element 51 when not soaked in liquid is about 0.04 to 0.06 g.
  • the first liquid-conducting element 51 is made of oriented fibers that are basically arranged in the length direction, width direction or radial direction.
  • the first liquid-conducting element 51 has a strong bending resistance and thus a hard characteristic by arranging the oriented fibers in the length direction or width direction of the first liquid-conducting element 51.
  • the first liquid-conducting element 51 is hard artificial cotton including oriented polyester fibers, or hard artificial cotton or artificial foam made of filamentous polyurethane.
  • the first liquid guiding element 51 is accommodated and held in the bracket 60. According to Figures 3 to 5, the first liquid guiding element 51 is adjacent to the upper surface of the liquid storage cavity 112 and is in fluid communication with the liquid storage cavity 112, thereby absorbing the liquid matrix. According to Figures 3 to 5, the first liquid guiding element 51 is configured to be annular.
  • a tubular element 14 is further disposed in the housing 10/first housing 11; the tubular element 14 is an independent component, preferably made of a thinner rigid material; as a suitable example, the tubular element 14 is a ceramic tube or a stainless steel tube, etc.; after the tubular element 14 axially penetrates the first liquid-conducting element 51, it is connected to the aerosol output tube 111 by interference fit, tight fit, or interference fit, and a seal is formed between them while being tightly connected. After assembly, the first liquid-conducting element 51 is arranged around the tubular element 14.
  • the atomizing assembly is accommodated and assembled in the tubular element 14.
  • the tubular element 14 is provided with a plurality of through holes 141 spaced apart along the circumferential direction.
  • the perforation 141 is in fluid communication with the first liquid-conducting element 51 to receive the liquid matrix.
  • the atomizing assembly includes a second liquid-conducting element 52.
  • the second liquid-conducting element 52 is flexible, for example, made of flexible fibers such as cotton fibers, non-woven fabrics, or sponges; or in other embodiments, the second liquid-conducting element 52 is rigid, for example, made of a rigid porous body material, such as porous ceramics, porous glass, etc.
  • the second liquid-conducting element 52 is configured to be tubular or cylindrical arranged along the longitudinal direction of the housing 10/first shell 11; the second liquid-conducting element 52 is coaxial with the tubular element 14 and is located inside the tubular element 14.
  • the second liquid-conducting element 52 may also include a rigid porous body element, such as porous ceramics or porous glass, etc.
  • the outer surface of the second liquid-conducting element 52 along the radial direction covers the perforation 141 of the tubular element 14, and the outer surface of the second liquid-conducting element 52 is configured as a liquid-absorbing surface to receive and absorb the liquid matrix passing through the first liquid-conducting element 51 through the perforation 141.
  • the liquid matrix in the liquid storage cavity 112 is absorbed through the upper surface of the first liquid-conducting element 51, and then flows to the perforation 141 of the tubular element 14 through the lower surface of the first liquid-conducting element 51, and finally passes through the perforation 141 of the tubular element 14 and is absorbed by the second liquid-conducting element 52.
  • the inner surface of the second liquid-conducting element 52 along the radial direction is configured as an atomization surface, which is combined/fitted/abutted against the heating element 40; and after the liquid matrix is transferred to the atomization surface, it is heated and atomized by the heating element 40 to generate an aerosol and released.
  • the heating element 40 is arranged to extend in the longitudinal direction of the second liquid-conducting element 52, and the heating element 40 is arranged coaxially with the second liquid-conducting element 52.
  • the heating element 40 is a resistance heating net, a resistance heating coil, etc.
  • the heating element 40 is a heating element wound by a sheet or mesh substrate; the wound heating element 40 is a non-closed tubular shape in the circumferential direction, but has a cylindrical shape with a side opening in the longitudinal direction.
  • Conductive pins are welded or arranged at both ends of the heating element 40 to guide current on the heating element 40.
  • the heating element 40 may be combined with the second liquid-conducting element 52 by printing, deposition, sintering or physical assembly.
  • the second liquid-conducting element 52 may have a flat surface or a curved surface for supporting the heating element 40.
  • the heating element 40 is formed on the second liquid-conducting element 52 by mounting, printing, deposition or the like.
  • the heating element 40 is formed on a flat surface or a curved surface of the second liquid-conducting element 52.
  • the heating element 40 is a conductive track formed on the surface of the second liquid-conducting element 52.
  • the conductive track of the heating element 40 can be in the form of a printed circuit formed by printing.
  • the heating element 40 is a patterned conductive track. In some other variations, the heating element 40 is planar. In some other variations, the heating element 40 is a conductive track that extends in a circuitous, meandering, reciprocating or bending manner.
  • the support 60 also provides support and fixation for the first liquid-conducting element 51 and the tubular element 14.
  • the support 60 is generally cylindrical in shape.
  • the support 60 is rigid, for example, the support 60 is made of hard polymer plastic.
  • the housing 10 is further provided with:
  • the retaining element 18 is located in the second housing 12 and between the battery cell 70 and the bracket 60 in the longitudinal direction; the retaining element 18 is used to support and retain the elastic electrical contact 17; and the retaining element 18 is used to at least partially surround and retain the battery cell 70.
  • the retaining element 18 is generally annular in shape and arranged in the longitudinal direction of the second housing 12.
  • the retaining element 18 is rigid, for example, made of an organic polymer plastic.
  • At least a portion of the retaining element 18 extends into the bracket 60 and supports the airflow sensor 15 and/or the partition 16 mounted in the bracket 60 .
  • the electronic atomization device 100 further includes:
  • the elastic conductive element 17 is mounted and held on the holding element 18.
  • the elastic conductive element 17 and the holding element 18 are integrally prepared by metal insert injection molding or in-mold injection molding, so that they are tightly combined.
  • the elastic conductive element 17 and the holding element 18 are tightly combined by mechanical connection; for example, the holding element 18 is provided with a clamping mouth, groove or other fastening structure for clamping or fastening the conductive element 17, and the conductive element 17 is tightly held on the holding element 18.
  • the elastic conductive element 17 includes a metal or alloy with low resistivity; for example, the conductive element 17 includes gold, silver, copper or an alloy thereof.
  • the elastic conductive element 17 is formed by bending a sheet or conductor precursor; in some embodiments, the elastic conductive element 17 is in a tortuous shape; in some embodiments, the elastic conductive element 17 is formed by bending a copper sheet.
  • the meandering conductive element 17 has an approximately S-shaped shape; or in some other embodiments, the meandering conductive element 17 has an approximately U-shaped shape, etc.
  • at least one bend-forming recess is defined in the elastic conductive element 17; the retaining element 18 is embedded or stuck in at least one recess.
  • the battery cell 70 elastically rests on the conductive element 17, thereby forming conductivity.
  • the airflow sensor 15 is welded or electrically connected to the conductive element 17 to form conductivity.
  • the conductive element 17 is at least partially used to guide current between the battery cell 70 and the airflow sensor 15/heating element 40.
  • the airflow sensor 15 is, for example, a microphone sensor or a MEMS sensor, etc.
  • the airflow sensor 15 is substantially cylindrical in shape, and the axis of the airflow sensor 15 is substantially parallel to the longitudinal direction of the electronic atomization device 100 .
  • the bracket 60 is generally arranged to extend longitudinally along the electronic atomization device 100; the bracket 60 has a first end facing or close to the liquid storage chamber 112, and a second end away from the first end; the bracket 60 is basically a cylindrical shape extending from the first end to the second end.
  • the bracket 60 is rigid, for example, the bracket 60 is made of a hard polymer plastic.
  • the bracket 60 includes a first support portion 610, a second support portion 620, and a third support portion 630 arranged in sequence along the longitudinal direction; wherein the third support portion 630 is mechanically connected or fastened to the retaining element 18.
  • the first support portion 610 surrounds the first liquid-conducting element 51.
  • the first support portion 610 is interference-fitted with the housing 10/first shell 11 near the liquid storage chamber 112.
  • a sealing ring such as an O-ring, is arranged outside the first support portion 610 around the outside of the first support portion 610 to provide a seal between the first support portion 610 and the housing 10/first shell 11.
  • the third support portion 630 establishes a mechanical connection and an interference fit with the housing 10/first shell 11; and, a sealing ring, such as an O-ring, is arranged outside the third support portion 630 to provide a seal between the third support portion 630 and the housing 10/first shell 11.
  • the retaining element 18 at least partially extends into the third support portion 630 and establishes a mechanical connection with the third support portion 630.
  • the second support portion 620 of the bracket 60 is further provided with a plurality of flanges 621 surrounding the second support portion 620 in the circumferential direction, and the flanges 621 are connected to each other by two adjacent flanges. As shown in FIGS. 3 to 6 , the flange 621 is arranged between the sealing ring outside the first support portion 610 and the sealing ring outside the third support portion 630 along the longitudinal direction of the bracket 60 .
  • the first accommodating cavity 611 includes a first section 6111 and a second section 6112 arranged in sequence along the longitudinal direction; wherein the first section 6111 is close to the first end of the bracket 60, and the first section 6111 is a cone or wide-mouthed shape with an inclined inner surface; the second section 6112 is a columnar shape with a substantially constant diameter.
  • the first liquid-conducting element 51 is accommodated and retained in the second section 6112 of the first accommodating cavity 611; and the first liquid-conducting element 51 avoids the conical first section 6111, and the liquid matrix in the liquid storage cavity 112 of the conical first section 6111 is guided to the upper surface of the first liquid-conducting element 51 and absorbed.
  • the first liquid-conducting element 51 is not flush with the first end of the bracket 60, for example, in FIG. 6, there is a spacing of about 5 to 10 mm between them.
  • a second accommodating chamber 627 is defined in the second support portion 620 for at least partially installing and accommodating the tubular element 14 and the atomizer assembly. Specifically, after assembly, the tubular element 14 is at least partially inserted into the second accommodating chamber 627 of the bracket 60 after passing through the first accommodating chamber 611; and the tubular element 14 and the bracket 60 are sealed by interference fit. And, there is no flexible sealing element between the tubular element 14 and the bracket 60.
  • the first end of the bracket 60 is open, or has a first opening; the first liquid-conducting element 51 is received in the first accommodating chamber 611 from the first end through the first opening; and/or, the tubular element 14 and/or the atomizer assembly passes through the first accommodating chamber 611 from the first end through the first opening to be received in the second accommodating chamber 627.
  • the third supporting portion 630 of the bracket 60 is further provided with:
  • the third accommodating chamber 631 is used to accommodate or install the airflow sensor 15 and the partition 16.
  • the airflow sensor 15 is accommodated and installed in the third accommodating chamber 631 of the bracket 60, and is arranged away from the liquid storage chamber 112.
  • the airflow sensor 15 is in the shape of a sheet, a disk, or a column; the axis of the airflow sensor 15 is parallel to the longitudinal arrangement along the bracket 60.
  • the partition 16 is flexible, for example, made of silicone or thermoplastic elastomer, and wraps the airflow sensor 15. As shown in Figures 3 to 7, the partition 16 is arranged with at least one second air inlet 161 that penetrates in the longitudinal direction for air to pass through the partition 16.
  • the airflow sensor 15 is arranged away from the longitudinal center axis of the electronic atomization device 100; for example, in FIG. 4 and FIG. 5 , the airflow sensor 15 is arranged close to the left side.
  • an airflow channel is arranged in the electronic atomization device 100, defining an airflow path from the first air inlet 21 through the atomization assembly to the air outlet 113, so as to deliver the aerosol to the air outlet 113 for the user to inhale.
  • the airflow channel in the electronic atomization device 100 is defined by multiple components, such as shown by arrow R2 in FIGS. 3 to 6 .
  • the bracket 60 is provided with:
  • the first channel portion 623 extends from the third accommodating cavity 631 to the outer surface of the second supporting portion 620 of the bracket 60 and defines a communication port 624 on the outer surface of the second supporting portion 620;
  • the second channel portion 625 extends from the outer surface of the second support portion 620 to the second accommodating chamber 627. Therefore, during inhalation, the airflow path through the bracket 60 is shown by the arrow R2 in FIG. 6 , and the air enters from the third accommodating chamber 631 to the outer surface of the second support portion 620 via the first channel portion 623, and flows around the bracket 60 in the groove on the outer surface of the second support portion 620 to the second channel portion 625, and then enters the second accommodating chamber 627 via the second channel portion 625, and then carries the aerosol generated by the atomization assembly to be output.
  • the complete airflow path of the electronic atomization device 100 during inhalation is shown by the arrow R2 in Figures 3 to 6.
  • the sealing element 32 of the operating mechanism 30 moves to the open position, the external air entering from the first air inlet 21 passes through the gap between the battery cell 70 and the housing 10 and the retaining element 18 in sequence and enters the third accommodating cavity 631 of the bracket 60; then passes through the second air inlet 161 of the partition 16 and flows into the first channel portion 623, and then flows to the second channel portion 625 through the groove on the surface of the bracket 60; finally, it enters the tubular element 14 from the second channel portion 625, and carries the aerosol generated by the atomization component from the aerosol output tube 111 to the air outlet 113.
  • the partition 16 is basically configured to be cylindrical, and the partition 16 is basically adapted to the cross section of the third accommodating cavity 631 of the bracket 60 . And, After assembly, the partition 16 has a distance d1 with the top wall of the third accommodating cavity 631 in the longitudinal direction of the bracket 60, and the distance d1 is about 3-5 mm; and the partition 16 has a distance d2 with the second end of the bracket 60, and the distance d2 is about 4-8 mm.
  • the second air inlet 161 of the partition 16 has a first port 1611 and a second port 1612 opposite to each other; wherein the first port 1611 is an air outlet port, and the first port 1611 is close to and connected to the air outlet 113; the second port 1612 is an air inlet port, and the second port 1612 is close to and connected to the first air inlet 21.
  • the airflow sensor 15 includes a first sensing surface 151 and a second sensing surface 152 that are opposite to each other in the longitudinal direction of the electronic atomization device 100.
  • the partition 16 wraps the airflow sensor 15 in the circumferential direction and exposes the first sensing surface 151 and the second sensing surface 152.
  • the first sensing surface 151 and the second sensing surface 152 are isolated from each other.
  • the first sensing surface 151 is connected to the first port 1611 of the second air inlet 161 through the space defined by the spacing d1; and the second sensing surface 152 is connected to the second port 1612 of the second air inlet 161 through the space defined by the spacing d2.
  • the first sensing surface 151 and the second sensing surface 152 of the above air flow sensor 15 are connected through the second air inlet 161.
  • the pressure drop sensed by the first sensing surface 151 is greater than the pressure drop sensed by the second sensing surface 152;
  • the air flow sensor 15 determines the user's suction action and outputs a trigger signal;
  • the electronic atomization device 100 controls the battery 70 to output power to the heating element 40 to atomize the liquid to generate an aerosol according to the trigger signal of the air flow sensor 15.
  • the airflow sensor 15 is arranged away from the distal end 120.
  • the first sensing surface 151 faces the proximal end 110 and has a first distance d11 therebetween;
  • the second sensing surface 152 faces the distal end 120 and has a second distance d12 therebetween.
  • the second distance d12 is greater than the first distance d11 . Accordingly, the airflow sensor 15 is relatively closer to the proximal end 110 .
  • the cross-sectional area of the second air inlet 161 is variable; in FIG. 7 , at least a portion of the second air inlet 161 is tapered, and the cross-sectional area of at least a portion of the second air inlet 161 decreases toward the first port 1611; when the air flows through the second air inlet 161 during suction, turbulence is formed, which is beneficial for promoting the pressure difference between the first sensing surface 151 and the second sensing surface 152.
  • the cross-sectional area of the second air inlet 161 may be constant.
  • the number of the second air inlets 161 is two; or in some other variations, the number of the second air inlets 161 may be only one or more.
  • the minimum cross-sectional area of the second air inlet 161 determines the suction resistance and the pressure drop difference formed during the suction, that is, the cross-sectional area of the minimum aperture 1613 of the second air inlet 161 in FIG. 7 .
  • the cross-sectional area of the minimum aperture 1613 of the second air inlet 161 is between 0.8 and 2.3 mm 2 . In some more preferred embodiments, the cross-sectional area of the minimum aperture 1613 of the second air inlet 161 is between 1.0 and 2.26 mm 2 .
  • the following table shows the results of the cross-sectional area of the minimum aperture 1613 of the second air inlet 161, the suction resistance during the suction, and the pressure difference value on both sides of the airflow sensor 15 in multiple embodiments, which is beneficial for triggering the airflow sensor 15 while maintaining a suitable suction resistance.
  • the minimum cross-sectional area of the second air inlet 161 is such that the pressure drop caused by the second air inlet 161 during use can drive the air flow sensor 15 to start; preferably, the second air inlet 161 is arranged to form an air pressure between 100Pa and 600Pa during use. Difference.
  • the area of the first air inlet 21 is greater than 1.5 times the minimum cross-sectional area of the second air inlet 161. In some preferred embodiments, the area of the first air inlet 21 is greater than 2.5 times the minimum cross-sectional area of the second air inlet 161; or, the area of the first air inlet 21 is greater than 3.5 times the minimum cross-sectional area of the second air inlet 161. In some preferred embodiments, the area of the first air inlet 21 is about 4-10 mm2 .
  • the complete airflow channel passing through the electronic atomization device 100 includes:
  • the first portion between the first air inlet 21 and the second port 1612 of the second air inlet 161 is mainly defined by the gap between the battery cell 70 and the second housing 12 ;
  • the second portion between the first port 1611 of the second air inlet 161 and the air outlet 113 is mainly defined by the bracket 60 and the aerosol output tube 111.
  • the average cross-sectional area of the second portion is smaller than the average cross-sectional area of the first portion.
  • the length of the second air inlet 161 is about 5 to 12 mm. That is, the partition 16 has a thickness of about 5 to 12 mm.

Landscapes

  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Special Spraying Apparatus (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un dispositif d'atomisation électronique (100) comprenant : une cavité de stockage de liquide (112) et un élément chauffant (40) ; une première entrée d'air (21), une sortie de gaz (113) et un canal d'écoulement d'air situé entre la première entrée d'air (21) et la sortie de gaz (113) ; un séparateur (16) divisant le canal d'écoulement d'air en une première partie située sur un premier côté du séparateur (16) et une seconde partie située sur un second côté du séparateur (16) ; une seconde entrée d'air (161) en communication gazeuse avec la première partie et la seconde partie ; et un capteur d'écoulement d'air (15) destiné à détecter un écoulement d'air s'écoulant dans le canal d'écoulement d'air, le capteur d'écoulement d'air (15) comprenant une première face de détection (151) et une seconde face de détection (152) qui sont respectivement disposées sur la première partie et la seconde partie et sont orientées à l'opposée l'une de l'autre, et la première face de détection (151) étant en communication d'écoulement d'air avec la seconde face de détection (152) au moyen de la seconde entrée d'air (161). Lorsqu'un utilisateur vapote tandis que la première entrée d'air (21) est fermée, la pression détectée par la première face de détection (151) du capteur d'écoulement d'air (15) est sensiblement la même que la pression détectée par la seconde face de détection (152), et est ainsi bénéfique pour empêcher un déclenchement inopportun.
PCT/CN2024/126412 2023-11-01 2024-10-22 Dispositif d'atomisation électronique Pending WO2025092507A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311451055.XA CN119924596A (zh) 2023-11-01 2023-11-01 电子雾化装置
CN202311451055.X 2023-11-01

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WO2025092507A1 true WO2025092507A1 (fr) 2025-05-08

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180168223A1 (en) * 2015-06-30 2018-06-21 Philip Morris Products S.A. An aerosol-generating device, system and method with a heated gas sensor
EP3692827A1 (fr) * 2019-06-12 2020-08-12 Shenzhen First Union Technology Co., Ltd. Système générateur d'aérosols
WO2021105173A1 (fr) * 2019-11-29 2021-06-03 Jt International Sa Cigarette électronique
CN217117508U (zh) * 2022-02-09 2022-08-05 深圳麦克韦尔科技有限公司 供电组件及电子雾化装置
CN219353095U (zh) * 2022-12-19 2023-07-18 深圳市合元科技有限公司 电子雾化装置
WO2023143509A1 (fr) * 2022-01-28 2023-08-03 深圳雾芯科技有限公司 Appareil d'atomisation électronique, procédé de commande et support de stockage lisible par ordinateur
WO2023198205A1 (fr) * 2022-04-15 2023-10-19 深圳市合元科技有限公司 Dispositif d'atomisation électronique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180168223A1 (en) * 2015-06-30 2018-06-21 Philip Morris Products S.A. An aerosol-generating device, system and method with a heated gas sensor
EP3692827A1 (fr) * 2019-06-12 2020-08-12 Shenzhen First Union Technology Co., Ltd. Système générateur d'aérosols
WO2021105173A1 (fr) * 2019-11-29 2021-06-03 Jt International Sa Cigarette électronique
WO2023143509A1 (fr) * 2022-01-28 2023-08-03 深圳雾芯科技有限公司 Appareil d'atomisation électronique, procédé de commande et support de stockage lisible par ordinateur
CN217117508U (zh) * 2022-02-09 2022-08-05 深圳麦克韦尔科技有限公司 供电组件及电子雾化装置
WO2023198205A1 (fr) * 2022-04-15 2023-10-19 深圳市合元科技有限公司 Dispositif d'atomisation électronique
CN219353095U (zh) * 2022-12-19 2023-07-18 深圳市合元科技有限公司 电子雾化装置

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