WO2024109531A1 - Aerosol generating device, heater for aerosol generating device and preparation method - Google Patents

Aerosol generating device, heater for aerosol generating device and preparation method Download PDF

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Publication number
WO2024109531A1
WO2024109531A1 PCT/CN2023/129985 CN2023129985W WO2024109531A1 WO 2024109531 A1 WO2024109531 A1 WO 2024109531A1 CN 2023129985 W CN2023129985 W CN 2023129985W WO 2024109531 A1 WO2024109531 A1 WO 2024109531A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
aerosol generating
generating device
heating element
electrode
Prior art date
Application number
PCT/CN2023/129985
Other languages
French (fr)
Chinese (zh)
Inventor
陈桂敏
戚祖强
罗家懋
雷宝灵
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Publication of WO2024109531A1 publication Critical patent/WO2024109531A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—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
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • 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
    • 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
    • A24F40/57—Temperature control
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70—Manufacture
    • 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
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof

Definitions

  • the embodiments of the present invention relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating device, a heater for the aerosol generating device, and a preparation method thereof.
  • 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 an aerosol-generating article containing tobacco or other non-tobacco products, which may or may not contain nicotine.
  • a known heating device uses a ceramic-based heater to heat the tobacco or other non-tobacco product; wherein the ceramic-based heater is prepared by printing a resistive heating track on a ceramic tube as a substrate.
  • One embodiment of the present application provides an aerosol generating device, which is configured to heat an aerosol generating article to generate an aerosol; comprising:
  • an electrically insulating substrate configured to be tubular surrounding or defining the chamber
  • heating element bonded to the substrate and surrounding at least a portion of the substrate
  • the substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element, thereby heating the aerosol generating article;
  • the substrate includes at least one of ceramic, glass and quartz, and the tube wall thickness of the substrate is less than 0.2 mm.
  • the substrate does not include a single element of metal.
  • the wall thickness of the substrate is between 0.1 mm and 0.2 mm.
  • the substrate is formed by grinding a tubular precursor on a grinding machine to reduce the wall thickness of the tube.
  • the substrate is tested according to a three-point bending strength test method, and the bending strength of all test sites of the substrate is greater than 40N.
  • the heating element includes a heating layer formed or bonded to a substrate.
  • the heating layer is configured in a ring shape surrounding the substrate.
  • the substrate includes a first end and a second end that are opposed to each other in a longitudinal direction;
  • a first electrode coupled to the substrate and arranged close to the first end
  • a second electrode coupled to the substrate and arranged close to the second end
  • the heating layer is configured to extend between the first electrode and the second electrode, and the first electrode and the second electrode guide current in a longitudinal direction of the heating layer.
  • the resistance of the heating layer is between 0.5 ⁇ and 3 ⁇ .
  • the substrate when the heating element is heated at a power supply of 30 W, the substrate is configured to be heated from room temperature to 320° C. within 30 seconds.
  • Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:
  • an electrically insulating substrate configured to be tubular
  • heating element bonded to the substrate and surrounding at least a portion of the substrate
  • the substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element; the substrate comprises at least one of ceramic, glass, and quartz, and has a tube wall thickness of less than 0.2 mm.
  • Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:
  • an infrared emitting coating formed on the quartz tube and surrounding at least a portion of the quartz tube for radiating infrared rays into the tubular hollow of the quartz tube;
  • the quartz tube has a tube wall thickness of less than 0.2 mm.
  • Another embodiment of the present application further provides a method for preparing a heater for an aerosol generating device, comprising:
  • the precursor comprises at least one of ceramic, glass, and quartz,
  • the precursor has a tube wall thickness greater than 0.2 mm;
  • a heating element is formed on the substrate.
  • the above aerosol generating device uses an ultra-thin substrate with a tube wall thickness of less than 0.2 mm, which is more sensitive to temperature increase or decrease during the heating process and is beneficial for reducing energy consumption.
  • FIG1 is a schematic diagram of an aerosol generating device provided by an embodiment
  • FIG2 is a schematic structural diagram of an embodiment of the heater in FIG1 ;
  • FIG3 is an exploded schematic diagram of the heater in FIG2 from one viewing angle
  • FIG4 is a temperature field distribution diagram of the heater in FIG2 during the heating process
  • FIG5 is a schematic structural diagram of another embodiment of the heater in FIG1 ;
  • FIG6 is a schematic diagram of a substrate thinning process in one embodiment
  • FIG7 is a schematic diagram of a substrate thinning process in yet another embodiment
  • FIG8 is a comparison diagram of the heating rate of a substrate before and after being thinned by circular grinding in one embodiment
  • FIG9 is a schematic diagram of a heating curve of an aerosol generating article in one embodiment
  • FIG. 10 is a schematic diagram showing the preparation of a heater according to yet another embodiment.
  • One embodiment of the present application provides an aerosol generating device 100 that heats, rather than burns, an aerosol generating product 1000 such as a cigarette, thereby causing at least one component of the aerosol generating product 1000 to volatilize or release to form an aerosol for inhalation, as shown in FIG. 1 .
  • the aerosol-generating product 1000 preferably uses a tobacco-containing material that releases volatile compounds from the matrix when heated; or it can also be a non-tobacco material that can be heated and suitable for electric heating to produce smoke.
  • the aerosol-generating product 1000 preferably uses a solid matrix, which can include one or more of powder, particles, fragments, strips, or flakes of one or more of herb leaves, dried flowers, herbal crops with volatile aromas, tobacco leaves, homogenized tobacco, and expanded tobacco; or the solid matrix can contain additional tobacco or non-tobacco volatile compounds. Aroma compounds are released when the substrate is heated.
  • the aerosol generating article 1000 is received in the aerosol generating device 100 , a portion thereof is exposed outside the aerosol generating device 100 , such as a filter tip, which is advantageous for the user to inhale.
  • FIG1 The structure of an aerosol generating device according to an embodiment of the present application can be seen in FIG1 .
  • the overall appearance of the device is generally configured as a flat cylinder.
  • the external components of the aerosol generating device 100 include:
  • the shell 10 basically defines the outer surface of the aerosol generating device, and its interior is a hollow structure, thereby forming an assembly space for necessary functional components such as electronic devices and heating devices.
  • the shell 10 has a proximal end 110 and a distal end 120 opposite to each other along the length direction; in use, the proximal end 110 is the end close to the user for easy operation of the aerosol generating product 1000, heating and inhalation; the distal end 120 is the end away from the user. Among them,
  • the proximal end 110 is provided with a receiving opening 111 , through which the aerosol generating article 1000 can be received in the housing 10 to be heated or removed from the housing 10 ;
  • the distal end 120 is provided with an air inlet 121 ; the air inlet 121 is used to allow external air to enter the housing 10 during the suction process.
  • the housing can be formed of a metal or alloy such as stainless steel, aluminum, etc.
  • suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and the like.
  • the aerosol generating device 100 further includes:
  • the chamber is used to accommodate or receive the aerosol-generating article 1000 ; in use, the aerosol-generating article 1000 can be removably received in the chamber through the receiving opening 111 .
  • the aerosol generating device 100 further includes:
  • the air channel 150 is located between the chamber and the air inlet 121 ; thus, in use, the air channel 150 provides a channel path from the air inlet 121 into the chamber/aerosol generating article 1000 , as shown by arrow R11 in FIG. 1 .
  • the aerosol generating device 100 further includes:
  • a battery cell 130 for power supply preferably, the battery cell 130 is a rechargeable DC battery cell 130 and can be charged by an external power source;
  • the circuit board 140 is arranged or integrated with a circuit for controlling the heating or operation of the aerosol generating device 100 .
  • the aerosol generating device 100 further includes:
  • the heater 30 at least partially surrounds and defines a chamber, and when the aerosol generating article 1000 is received in the housing 10, the heater 30 at least partially surrounds or encloses the aerosol generating article 1000 and heats the aerosol generating article 1000 from the periphery. Furthermore, when the aerosol generating article 1000 is received in the housing 10, it is at least partially contained and retained in the heater 30.
  • the heater 30 is configured to be substantially in a longitudinally long tubular shape and comprises:
  • the tubular substrate 31 is made of a material with good thermal conductivity, such as ceramic, glass, quartz, etc.; in use, the substrate 31 at least partially defines a chamber for accommodating and holding the aerosol generating product 1000.
  • the substrate 31 is electrically insulating.
  • the substrate 31 does not include a single metal, or the substrate 31 does not include a single metal tube such as an aluminum tube, a stainless steel tube or a copper tube or an alloy.
  • the tubular substrate 31 has a length of about 15 to 60 mm; and the tubular substrate 31 has an inner diameter of about 5.4 to 7.8 mm.
  • the ceramic substrate 31 may include at least one of ceramic oxides or ceramic nitrides such as aluminum oxide, silicon oxide, boron oxide, zirconium oxide, and iron oxide; and the substrate 31 made of the above glass or ceramic material has a thermal conductivity of about 1 to 30 W/m.k.
  • the length of the aerosol-generating article 1000 surrounded or enclosed by the substrate 31 is greater than 30 mm.
  • the heater 30 further includes:
  • the heating element 32 at least partially surrounds or encloses the substrate 31 ; in use, the substrate 31 in turn heats the aerosol-generating article 1000 by receiving or transferring heat from the heating element 32 .
  • the heating element 32 includes a resistive heating element; and the heating element 32 can generate resistive Joule heat and generate heat when a direct current flows through the heating element 32.
  • the material of the heating element 32 is a composite material of a metal material, a metal alloy, graphite, carbon, a conductive ceramic or other ceramic material and a metal material with appropriate impedance.
  • the appropriate metal or alloy material includes at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, iron-manganese-aluminum-based alloy or stainless steel.
  • the heating element 32 may also include an electromagnetic induction heating element or an infrared heating element.
  • the heating element 32 is thermally conductive with the substrate 31; and the substrate 31 is heated by receiving the heat of the heating element 32, thereby heating the aerosol generating article 1000 received in the substrate 31.
  • the heating element 32 itself can generate heat through resistive Joule heat, or inductive heating, etc.
  • the substrate 31 is infrared-transmissive, and the heating element 32 is an electro-induced infrared emitting coating, and then the electro-induced infrared emitting coating can penetrate the substrate 31 by radiating infrared rays when current is supplied, so that it is received by the aerosol generating article 1000 and heats the aerosol generating article 1000.
  • the infrared emission layer is composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, Zn, etc., and the coating of these metal oxides can be heated to an appropriate temperature when powered on to radiate far infrared rays; the thickness of the infrared emission layer can be preferably controlled to be 30 ⁇ m to 50 ⁇ m; the infrared emission layer is formed on the surface of the substrate 31
  • the oxides of the above metal elements can be sprayed on the outer surface of the tubular substrate 31 by atmospheric plasma spraying and then solidified.
  • the heater 30 may include only the heating element 32 , and a chamber is surrounded or defined by the heating element 32 to accommodate the aerosol generating article 1000 and directly transfer heat to the aerosol generating article 1000 for heating.
  • the heating element 32 is configured to be a cylindrical shape surrounding or enclosing the substrate 31.
  • the extension dimension of the heating element 32 along the length direction of the heater 30 is smaller than the extension dimension of the substrate 31; for example, in some specific implementations, the heating element 32 has a length greater than 20 to 50 mm.
  • the heater 30 includes a first end 310 and a second end 320 that are separated from each other along the length direction; and in a specific implementation, the first end 310 and the second end 320 are defined by two ends of the substrate 31 along the length direction.
  • the heating element 32 and the first end 310 have a spacing 313, and the size of the spacing 313 is about 3 to 10 mm; and the heating element 32 and the second end 320 have a spacing 314, and the size of the spacing 314 is about 3 to 10 mm.
  • the heating element 32 does not completely wrap or surround the outer surface of the substrate 31, so that the outer surface of the substrate 31 has a first exposed area defined by the spacing 313 near the first end 310.
  • the outer surface of the substrate 31 has a second exposed area defined by the spacing 314 near the second end 320.
  • the aerosol generating device 100 provides support for the heater 30 by providing a clamping or supporting component such as a PEEK ring, etc., combined with the first exposed area defined by the spacing 313 and the second exposed area defined by the spacing 314.
  • the heating element 32 is a resistive heating layer formed on the outside of the tubular substrate 31 by spraying or deposition; in this embodiment, the resistive heating layer is annular around at least part of the substrate 31. And in this embodiment, the resistive heating layer is closed in the circumferential direction of the heater 30. And in some embodiments, the heating element 32 formed by spraying or deposition as a resistive heating layer may include nickel-chromium alloy, nickel-iron alloy, platinum, tungsten, silver, conductive ceramics, etc. The thickness of the resistive heating layer of the heating element 32 may be approximately between 0.05 and 0.5 mm.
  • the resistance value of the resistive heating layer is advantageous for the resistance value of the resistive heating layer to be approximately between 0.5 ⁇ and 3 ⁇ when the annular first electrode 371 and the second electrode 372 guide the current in the longitudinal direction of the resistive heating layer.
  • the heater 30 further includes:
  • the first electrode 371 and the second electrode 372 are used to supply power to the heating element 32; the first electrode 371 and the second electrode 372 can be electrode rings, electrode caps, or electrode coatings formed by spraying, deposition, etc.; and the first electrode 371 and the second electrode 372 are rings surrounding the heating element 32. Shape; among them,
  • the first electrode 371 is close to the first end 321 of the heating element 32, and at least partially surrounds the heating element 32, and contacts the heating element 32 to form a conductive connection; and the second electrode 372 is close to the second end 322 of the heating element 32, and at least partially surrounds the heating element 32, and contacts the heating element 32 to form a conductive connection; the first electrode 371 is connected to the circuit board 140 by welding the conductive lead 331, and the second electrode 372 is connected to the circuit board 140 by welding the conductive lead 332, so as to guide the current in the longitudinal direction of the heating element 32.
  • the resistance value of the heating element 32 is advantageously approximately between 0.5 ⁇ and 3 ⁇ .
  • the heating element 32 may also include a heating mesh wound or wrapped around the substrate 31 .
  • the heater 30 further includes:
  • the temperature sensor 34 such as a thermistor temperature sensor PT1000 or a thermocouple, is coupled to the heating element 32 to sense the temperature of the heating element 32 and/or the heater 30 .
  • the combination position or temperature measurement position of the temperature sensor 34 and the heating element 32 is basically located at the longitudinal center of the heating element 32; or, the distance between the combination position of the temperature sensor 34 and the heating element 32 and the first end 321 of the heating element 32 is approximately between 1/3 and 1/3 of the length of the heating element 32.
  • the combination position of the temperature sensor 34 and the heating element 32 is basically close to or located at the longitudinal center of the heating element 32, so that the temperature sensor 34 is basically located in the highest temperature area of the heating element 32.
  • FIG. 4 shows a temperature field distribution diagram of the heating element 32 of the sprayed resistance heating layer during operation. It can be seen from FIG. 4 that the highest temperature area of the heating element 32 is basically close to or located at the longitudinal center, and the temperature of the central area is significantly higher than that of the areas close to both ends.
  • the heater 30 further comprises:
  • the surface insulating layer is formed on the outside of the heating element 32 and/or the first electrode 371 and/or the second electrode 372 by spraying, deposition or coating, etc., to provide insulation for them on the outer surface of the heater 30.
  • the surface insulating layer is a glaze layer formed by spraying, deposition or the like.
  • FIG. 5 shows a schematic diagram of a heater 30 according to another embodiment, in which the heater 30 comprises:
  • An electrically insulating substrate 31a is configured in a tubular shape surrounding or defining the chamber; and the substrate 31a has a third end 310a and a fourth end 320a that are separated from each other in a longitudinal direction;
  • the resistance heating track 32a is bonded to the outer surface of the substrate 31a by screen printing, spraying or deposition.
  • the resistance heating track 32a is reciprocated between the first end 321a and the second end 322a. and, both ends of the resistance heating track 32a are connected to the circuit board 140 by welding leads or the like, so that when current flows through, it can generate heat by the resistance Joule heat.
  • the resistance heating track 32a is a meandering track; and, the outer surface of the substrate 31a has a blank area 311a defined by the resistance heating track 32a, for mounting a temperature sensor and the like.
  • the wall thickness of the substrate 31/31a made of ceramic, glass or quartz is between 0.1 and 0.2 mm, which is more sensitive to controlling the temperature rise or fall of the substrate 31/32a during the heating process.
  • Figure 6 shows a schematic diagram of preparing a substrate 31/31a with an ultra-thin wall thickness of 0.1 to 0.2 mm in one embodiment; in the implementation shown in Figure 6, the substrate 31/31a obtained by injection molding a ceramic raw material in a mold is ground from the outer cylindrical surface through a centerless cylindrical grinding process to reduce its wall thickness to a wall thickness of 0.1 to 0.2 mm.
  • the above "centerless cylindrical grinding” is a term for mechanical processing.
  • the substrate 31/31a is ground from the outer cylindrical surface of the substrate 31/31a by the grinding wheels 1 and 2 of the centerless cylindrical grinding machine; and the substrate 31/31a is supported and guided to rotate by the support plate and/or guide wheel 4 of the centerless cylindrical grinding machine.
  • the outer cylindrical surface of the substrate 31/31a is ground by a centerless cylindrical grinding machine, and the tubular substrate 31/31a with a wall thickness greater than 0.6 mm obtained by injection molding and sintering of ceramic raw materials is ground to a wall thickness of 0.1-0.2 mm.
  • a schematic diagram of a centerless internal cylindrical grinding machine tool can be used to insert or extend at least one grinding wheel into the substrate 31/31a for grinding; the grinding wheel 1a extends into the substrate 31/31a and combines with the inner cylindrical surface of the substrate 31/31a, and the grinding wheel 2a abuts against the outer cylindrical surface of the substrate 31/31a for grinding. And in the centerless internal cylindrical grinding machine tool processing, the substrate 31/31a is supported and rotated by the guide wheel 4a and the guide wheel 5a. Through the internal cylindrical grinding machine tool processing, the tubular substrate 31/31a with a wall thickness greater than 0.6mm, which is sintered after injection molding of the ceramic raw material mold, is ground to a wall thickness of 0.1 to 0.2mm.
  • the three-point bending strength test standard: GBT6569-2006 a three-point bending strength tester was used to perform strength tests on the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm and the alumina ceramic substrate 31/31a with a tube wall of 0.6 mm; in the test results, in the three-point bending strength test, the strength results of the upper end point, the middle point, and the lower end point are shown in the following table:
  • the strength of the ceramic tube substrate 31/31a is significantly reduced after the 0.6mm ceramic tube substrate 31/31a directly injected and sintered is thinned to 0.18mm by circular grinding.
  • the compressive strength of all test sites of the thinned substrate 31/31a is still maintained at more than 40N, which is completely feasible for the heating element 32 deposited or sprayed with a resistance heating layer or track.
  • FIG8 shows a heating curve of a heater 30 in an embodiment using an alumina ceramic substrate 31/31a with a tube wall of 0.18 mm and an alumina ceramic substrate 31/31a with a tube wall of 0.6 mm; in the comparison shown in FIG8 , the inner diameter of the substrate 31/31a is 5.7 mm, the length is 49 mm, and the power provided to the heater 30 is 30 W.
  • the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm rises from room temperature to the target temperature of 320°C in about 29 seconds, and the alumina ceramic substrate 31/31a with a tube wall of 0.6 mm rises from room temperature to the target temperature of 320°C in about 48 seconds.
  • the heater 40 with an alumina ceramic substrate 31/31a with a tube wall of 0.18 mm has a faster temperature sensitivity.
  • the time for the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm to rise from room temperature to the target temperature of 320°C is less than 30 seconds.
  • FIG9 further shows a schematic diagram of a heating curve of an aerosol generating article 1000 within a predetermined time in one embodiment.
  • the predetermined time is set based on the amount of aerosol that can be generated by the aerosol generating article 1000 and the puffing time (e.g., about 4 minutes) that the user is willing to accept; and the heating curve with the predetermined time includes:
  • Time stage S1 (0-t1 time, for example, about 10s): quickly heating from room temperature to a first target temperature T1 for preheating; the first target temperature is, for example, 350°C;
  • Time stage S2 (t1-t2 time, for example, about 5 seconds): the temperature drops from the first target temperature T1 to the second target temperature T2, for example, 320° C.;
  • Time stage S3 (t2-t3 time, for example, about 230s): aerosol generating product 1000 is basically maintained at the second target temperature T2 to be heated to generate an aerosol for inhalation; after the inhalation is completed, the power supply to the heater 30 is stopped and the aerosol is cooled naturally.
  • a heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.6 mm and an alumina ceramic substrate 31/31a thinned to a tube wall of 0.18 mm by a circular grinding process is used to heat the same aerosol generating product 1000 according to the heating curve with a predetermined time as shown in FIG9 , and the measured energy consumption comparison results are shown in the following table.
  • the heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.18mm has lower energy consumption, which is about 60 to 70J lower than the energy consumption of the heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.6mm; for the heater 30 with a substrate 31/31a with a tube wall less than 0.2mm after thinning, it is beneficial to reduce energy consumption.
  • FIG. 10 shows a schematic diagram of preparing a heater 30 having a substrate 31 / 31a with a tube wall thickness less than 0.2 mm in another embodiment; in FIG. 10 , the preparation of the heater 30 includes:
  • raw materials for forming the substrate 31/31a such as ceramic powder, glass powder, quartz powder, etc., and mix the raw materials with a liquid additive for a tape casting process to form a slurry with fluidity;
  • the slurry is cast through a casting device to form a film 31b with a thickness of less than 0.2 mm;
  • a resistive heating layer or a track-type heating element 32 is printed, deposited or sprayed on the film 31b formed by casting;
  • the film 31b is rolled into a tube outside a tubular fixture and sintered to form a substrate 31/31a with a tube wall thickness of less than 0.2 mm.

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Abstract

The present application proposes an aerosol generating device, a heater for the aerosol generating device and a preparation method. The aerosol generating device comprises: a chamber used for receiving an aerosol generating article; an electrically-insulating substrate configured as a tube surrounding or defining the chamber; and a heating element coupled to the substrate and surrounding at least a portion of the substrate. The substrate and the heating element are thermally conductive with respect to each other. During use, the substrate can generate heat by means of receiving heat from the heating element, which in turn heats the aerosol generating article. The substrate comprises at least one of a ceramic, glass and quartz, and the tube wall thickness of the substrate is less than 0.2 mm. The above aerosol generating device uses an ultra-thin substrate which has a tube wall thickness of less than 0.2mm, and the ultra-thin substrate is more sensitive to temperature rising or lowering during a heating process and is beneficial for reducing energy consumption.

Description

气雾生成装置、用于气雾生成装置的加热器及制备方法Aerosol generating device, heater for aerosol generating device and preparation method
相关申请的交叉参考CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求于2022年11月24日提交中国专利局，申请号为202211480500.0，名称为“气雾生成装置、用于气雾生成装置的加热器及制备方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to a Chinese patent application filed with the Chinese Patent Office on November 24, 2022, with application number 202211480500.0 and entitled “Aerosol generating device, heater for aerosol generating device and preparation method”, the entire contents of which are incorporated by reference into this application.
技术领域Technical Field
本发明实施例涉及加热不燃烧气雾生成技术领域，尤其涉及一种气雾生成装置、用于气雾生成装置的加热器及制备方法。The embodiments of the present invention relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating device, a heater for the aerosol generating device, and a preparation method thereof.
背景技术Background technique
烟制品(例如，香烟、雪茄等)在使用过程中燃烧烟草以产生烟草烟雾。人们试图通过制造在不燃烧的情况下释放化合物的产品来替代这些燃烧烟草的制品。Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.
此类产品的示例为加热装置，其通过加热而不是燃烧材料来释放化合物。例如，该材料可为包含烟草或其他非烟草产品的气溶胶生成制品，这些非烟草产品可包含或可不包含尼古丁。已知的加热装置采用陶瓷衬底的加热器围绕含烟草或其他非烟草产品进行加热；其中，陶瓷衬底的加热器是以陶瓷管作为衬底基材、并于陶瓷管上印刷电阻加热轨迹制备。An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be an aerosol-generating article containing tobacco or other non-tobacco products, which may or may not contain nicotine. A known heating device uses a ceramic-based heater to heat the tobacco or other non-tobacco product; wherein the ceramic-based heater is prepared by printing a resistive heating track on a ceramic tube as a substrate.
申请内容Application Contents
本申请的一个实施例提供一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；包括：One embodiment of the present application provides an aerosol generating device, which is configured to heat an aerosol generating article to generate an aerosol; comprising:
腔室，用于接收气溶胶生成制品；a chamber for receiving the aerosol generating article;
电绝缘的衬底，被构造成是围绕或界定所述腔室的管状；an electrically insulating substrate configured to be tubular surrounding or defining the chamber;
加热元件，结合于所述衬底并包围所述衬底的至少一部分；a heating element bonded to the substrate and surrounding at least a portion of the substrate;
所述衬底与所述加热元件是彼此导热的；在使用中，所述衬底能通过接收所述加热元件的热量而发热，转而加热气溶胶生成制品； The substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element, thereby heating the aerosol generating article;
所述衬底包括陶瓷、玻璃、石英中的至少一种，且所述衬底的管壁厚度低于0.2mm。The substrate includes at least one of ceramic, glass and quartz, and the tube wall thickness of the substrate is less than 0.2 mm.
在一些实施中，所述衬底不包括金属的单质。In some implementations, the substrate does not include a single element of metal.
在一些实施中，所述衬底的管壁厚度介于0.1～0.2mm。In some implementations, the wall thickness of the substrate is between 0.1 mm and 0.2 mm.
在一些实施中，所述衬底由管状的前体于圆磨机床上圆磨使管壁减薄后形成。。In some implementations, the substrate is formed by grinding a tubular precursor on a grinding machine to reduce the wall thickness of the tube.
在一些实施中，按照三点抗弯强度测试方法进行测试，所述衬底全部测试位点的抗弯强度均大于40N。In some implementations, the substrate is tested according to a three-point bending strength test method, and the bending strength of all test sites of the substrate is greater than 40N.
在一些实施中，所述加热元件包括形成或结合于衬底上的加热层。In some implementations, the heating element includes a heating layer formed or bonded to a substrate.
在一些实施中，所述加热层被构造成是围绕所述衬底的环形形状。In some implementations, the heating layer is configured in a ring shape surrounding the substrate.
在一些实施中，所述衬底包括沿纵向方向相背离的第一端和第二端；In some implementations, the substrate includes a first end and a second end that are opposed to each other in a longitudinal direction;
第一电极，结合于所述衬底并靠近所述第一端布置；a first electrode, coupled to the substrate and arranged close to the first end;
第二电极，结合于所述衬底并靠近所述第二端布置；a second electrode, coupled to the substrate and arranged close to the second end;
所述加热层被构造成是于所述第一电极和第二电极之间延伸，并由所述第一电极和第二电极在所述加热层的纵向方向上引导电流。The heating layer is configured to extend between the first electrode and the second electrode, and the first electrode and the second electrode guide current in a longitudinal direction of the heating layer.
在一些实施中，当通过所述第一电极和第二电极在所述加热层的纵向方向上引导电流时，所述加热层的电阻介于0.5Ω到3Ω。In some implementations, when current is directed through the first electrode and the second electrode in a longitudinal direction of the heating layer, the resistance of the heating layer is between 0.5Ω and 3Ω.
在一些实施中，当所述加热元件在30W的供电功率下加热时，所述衬底被构造成能在30s内由室温加热至320℃。In some implementations, when the heating element is heated at a power supply of 30 W, the substrate is configured to be heated from room temperature to 320° C. within 30 seconds.
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:
电绝缘的衬底，被构造成是管状；an electrically insulating substrate configured to be tubular;
加热元件，结合于所述衬底并包围所述衬底的至少一部分；a heating element bonded to the substrate and surrounding at least a portion of the substrate;
所述衬底与所述加热元件是彼此导热的；在使用中，所述衬底能通过接收所述加热元件的热量而发热；所述衬底包括陶瓷、玻璃、石英中的至少一种，且所述衬底具有低于0.2mm的管壁厚度。The substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element; the substrate comprises at least one of ceramic, glass, and quartz, and has a tube wall thickness of less than 0.2 mm.
本申请的又一个实施例还提出一种用于气雾生成装置的加热器，包括：Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:
石英管；Quartz tube;
红外发射涂层，形成于所述石英管并包围所述石英管的至少一部分，以用于向所述石英管的管状中空内辐射红外线；an infrared emitting coating formed on the quartz tube and surrounding at least a portion of the quartz tube for radiating infrared rays into the tubular hollow of the quartz tube;
所述石英管具有低于0.2mm的管壁厚度。The quartz tube has a tube wall thickness of less than 0.2 mm.
本申请的又一个实施例还提出一种用于气雾生成装置的加热器的制备方法，包括：Another embodiment of the present application further provides a method for preparing a heater for an aerosol generating device, comprising:
获取管状的前体；所述前体包括陶瓷、玻璃、石英中的至少一种， 且所述前体具有大于0.2mm的管壁厚度；Obtain a tubular precursor; the precursor comprises at least one of ceramic, glass, and quartz, The precursor has a tube wall thickness greater than 0.2 mm;
将所述前体于圆磨机床上进行磨削至管壁厚度低于0.2mm，获得电绝缘的衬底；Grinding the precursor on a cylindrical grinding machine until the tube wall thickness is less than 0.2 mm to obtain an electrically insulating substrate;
于所述衬底上形成加热元件。A heating element is formed on the substrate.
以上气雾生成装置，采用管壁厚度低于0.2mm的超薄衬底，在加热过程中升温或降温是更加灵敏的，且对于减少能耗是有利的。The above aerosol generating device uses an ultra-thin substrate with a tube wall thickness of less than 0.2 mm, which is more sensitive to temperature increase or decrease during the heating process and is beneficial for reducing energy consumption.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.
图1是一实施例提供的气雾生成装置的示意图；FIG1 is a schematic diagram of an aerosol generating device provided by an embodiment;
图2是图1中加热器一个实施例的结构示意图；FIG2 is a schematic structural diagram of an embodiment of the heater in FIG1 ;
图3是图2中加热器一个视角的分解示意图；FIG3 is an exploded schematic diagram of the heater in FIG2 from one viewing angle;
图4是图2中加热器加热过程中的温场分布图；FIG4 is a temperature field distribution diagram of the heater in FIG2 during the heating process;
图5是图1中加热器又一个实施例的结构示意图；FIG5 is a schematic structural diagram of another embodiment of the heater in FIG1 ;
图6是一个实施例中衬底的减薄过程的示意图；FIG6 is a schematic diagram of a substrate thinning process in one embodiment;
图7是又一个实施例中衬底的减薄过程的示意图；FIG7 is a schematic diagram of a substrate thinning process in yet another embodiment;
图8是一个实施例中衬底通过圆磨减薄前后的升温速率的对比图；FIG8 is a comparison diagram of the heating rate of a substrate before and after being thinned by circular grinding in one embodiment;
图9是一个实施例中气溶胶生成制品的加热曲线的示意图；FIG9 is a schematic diagram of a heating curve of an aerosol generating article in one embodiment;
图10是又一个实施例的加热器的制备示意图。FIG. 10 is a schematic diagram showing the preparation of a heater according to yet another embodiment.
具体实施方式Detailed ways
为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.
本申请一个实施例提出一种加热而非燃烧气溶胶生成制品1000例如烟支，进而使气溶胶生成制品1000的至少一种成分挥发或释放形成供吸食的气溶胶的气雾生成装置100，例如图1所示。One embodiment of the present application provides an aerosol generating device 100 that heats, rather than burns, an aerosol generating product 1000 such as a cigarette, thereby causing at least one component of the aerosol generating product 1000 to volatilize or release to form an aerosol for inhalation, as shown in FIG. 1 .
进一步在可选的实施中，气溶胶生成制品1000优选采用加热时从基质中释放的挥发化合物的含烟草的材料；或者也可以是能够加热之后适合于电加热发烟的非烟草材料。气溶胶生成制品1000优选采用固体基质，可以包括香草叶、干花、可挥发香味的草本作物、烟叶、均质烟草、膨胀烟草中的一种或多种的粉末、颗粒、碎片细条、条带或薄片中的一种或多种；或者，固体基质可以包含附加的烟草或非烟草的挥发性 香味化合物，以在基质受热时被释放。In an optional embodiment, the aerosol-generating product 1000 preferably uses a tobacco-containing material that releases volatile compounds from the matrix when heated; or it can also be a non-tobacco material that can be heated and suitable for electric heating to produce smoke. The aerosol-generating product 1000 preferably uses a solid matrix, which can include one or more of powder, particles, fragments, strips, or flakes of one or more of herb leaves, dried flowers, herbal crops with volatile aromas, tobacco leaves, homogenized tobacco, and expanded tobacco; or the solid matrix can contain additional tobacco or non-tobacco volatile compounds. Aroma compounds are released when the substrate is heated.
以及根据图1所示，气溶胶生成制品1000接收于气雾生成装置100后，有部分是露出于气雾生成装置100外的例如过滤嘴，供用户抽吸是有利的。As shown in FIG. 1 , after the aerosol generating article 1000 is received in the aerosol generating device 100 , a portion thereof is exposed outside the aerosol generating device 100 , such as a filter tip, which is advantageous for the user to inhale.
本申请一个实施例的气雾生成装置的构造可以参见图1所示，装置的外形整体大致被构造为扁筒形状，气雾生成装置100的外部构件包括：The structure of an aerosol generating device according to an embodiment of the present application can be seen in FIG1 . The overall appearance of the device is generally configured as a flat cylinder. The external components of the aerosol generating device 100 include:
壳体10，基本界定气雾生成装置的外表面，其内部为中空的构造，进而形成可用于电子器件和加热器件等必要功能部件的装配空间。壳体10具有沿长度方向相对的近端110和远端120；在使用中，近端110是靠近用户以便于操作收容气溶胶生成制品1000并加热和抽吸的一端；远端120是远离用户的一端。其中，The shell 10 basically defines the outer surface of the aerosol generating device, and its interior is a hollow structure, thereby forming an assembly space for necessary functional components such as electronic devices and heating devices. The shell 10 has a proximal end 110 and a distal end 120 opposite to each other along the length direction; in use, the proximal end 110 is the end close to the user for easy operation of the aerosol generating product 1000, heating and inhalation; the distal end 120 is the end away from the user. Among them,
近端110设置有接收口111，气溶胶生成制品1000可通过该接收口111接收于壳体10内被加热或从壳体10内移出；The proximal end 110 is provided with a receiving opening 111 , through which the aerosol generating article 1000 can be received in the housing 10 to be heated or removed from the housing 10 ;
远端120设置有进气孔121；进气孔121用于在抽吸的过程中供外部空气进入至壳体10内。The distal end 120 is provided with an air inlet 121 ; the air inlet 121 is used to allow external air to enter the housing 10 during the suction process.
在一些示例中，外壳可由诸如不锈钢、铝之类的金属或合金形成。其它适合的材料包括各种塑料(例如，聚碳酸酯)、金属电镀塑料(metal-plating over plastic)、陶瓷等等。In some examples, the housing can be formed of a metal or alloy such as stainless steel, aluminum, etc. Other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, and the like.
进一步根据图1所示，气雾生成装置100还包括：Further as shown in FIG. 1 , the aerosol generating device 100 further includes:
腔室，用于容纳或接收气溶胶生成制品1000；在使用中，气溶胶生成制品1000可通过接收口111可移除地接收于腔室内。The chamber is used to accommodate or receive the aerosol-generating article 1000 ; in use, the aerosol-generating article 1000 can be removably received in the chamber through the receiving opening 111 .
以及根据图1所示，气雾生成装置100还包括：As shown in FIG1 , the aerosol generating device 100 further includes:
空气通道150，位于腔室与进气口121之间；进而在使用中空气通道150提供由进气口121进入腔室/气溶胶生成制品1000的通道路径，如图1中箭头R11所示。The air channel 150 is located between the chamber and the air inlet 121 ; thus, in use, the air channel 150 provides a channel path from the air inlet 121 into the chamber/aerosol generating article 1000 , as shown by arrow R11 in FIG. 1 .
进一步根据图1所示，气雾生成装置100还包括：Further according to FIG. 1 , the aerosol generating device 100 further includes:
用于供电的电芯130；优选地该电芯130是可充电的直流电芯130，并能通过外部电源进行充电；A battery cell 130 for power supply; preferably, the battery cell 130 is a rechargeable DC battery cell 130 and can be charged by an external power source;
电路板140，布置或者集成有电路，以用于控制气雾生成装置100的加热或工作。The circuit board 140 is arranged or integrated with a circuit for controlling the heating or operation of the aerosol generating device 100 .
进一步根据图1所示，气雾生成装置100还包括：Further according to FIG. 1 , the aerosol generating device 100 further includes:
加热器30，至少部分围绕并界定腔室，当气溶胶生成制品1000接收于壳体10内时，加热器30至少部分围绕或包围气溶胶生成制品1000，并从气溶胶生成制品1000的外周进行加热。以及，当气溶胶生成制品1000接收于壳体10内时至少部分是容纳和保持于加热器30内的。 The heater 30 at least partially surrounds and defines a chamber, and when the aerosol generating article 1000 is received in the housing 10, the heater 30 at least partially surrounds or encloses the aerosol generating article 1000 and heats the aerosol generating article 1000 from the periphery. Furthermore, when the aerosol generating article 1000 is received in the housing 10, it is at least partially contained and retained in the heater 30.
进一步参见图2所示，加热器30被构造成基本是纵长的管状形状，并包括：As further shown in FIG. 2 , the heater 30 is configured to be substantially in a longitudinally long tubular shape and comprises:
管状的衬底31，衬底31的材质为导热性能较好的材质，例如陶瓷、玻璃、石英、等等；在使用中，由衬底31在至少部分界定用于容纳和保持气溶胶生成制品1000的腔室。衬底31是电绝缘的。在实施中，衬底31不包括单质金属，或者衬底31不包括单质金属管例如铝管、不锈钢管或铜管或合金等。以及在一些实施中，管状的衬底31大约具有15～60mm的长度；以及管状的衬底31具有大约5.4～7.8mm的内径。在一些具体的实施中，陶瓷材质的衬底31可以包括氧化铝、氧化硅、氧化硼、氧化锆、氧化铁等陶瓷氧化物或陶瓷氮化物等中的至少一种；以及采用以上玻璃、陶瓷材质的衬底31具有大约热导率为1～30W/m.k。The tubular substrate 31 is made of a material with good thermal conductivity, such as ceramic, glass, quartz, etc.; in use, the substrate 31 at least partially defines a chamber for accommodating and holding the aerosol generating product 1000. The substrate 31 is electrically insulating. In an implementation, the substrate 31 does not include a single metal, or the substrate 31 does not include a single metal tube such as an aluminum tube, a stainless steel tube or a copper tube or an alloy. And in some implementations, the tubular substrate 31 has a length of about 15 to 60 mm; and the tubular substrate 31 has an inner diameter of about 5.4 to 7.8 mm. In some specific implementations, the ceramic substrate 31 may include at least one of ceramic oxides or ceramic nitrides such as aluminum oxide, silicon oxide, boron oxide, zirconium oxide, and iron oxide; and the substrate 31 made of the above glass or ceramic material has a thermal conductivity of about 1 to 30 W/m.k.
在又一些实施中，气溶胶生成制品1000由衬底31所围绕或包围的长度大于30mm。In still other implementations, the length of the aerosol-generating article 1000 surrounded or enclosed by the substrate 31 is greater than 30 mm.
进一步参见图2所示，加热器30还包括：Further referring to FIG. 2 , the heater 30 further includes:
加热元件32，至少部分围绕或包围衬底31；在使用中，衬底31通过接收或传递加热元件32的热量转而加热气溶胶生成制品1000。The heating element 32 at least partially surrounds or encloses the substrate 31 ; in use, the substrate 31 in turn heats the aerosol-generating article 1000 by receiving or transferring heat from the heating element 32 .
在一些实施中，加热元件32包括电阻加热元件；以及，加热元件32能在直流电流流过加热元件32时产生电阻焦耳热而发热。以及在一些实施中，加热元件32的材质采用具有适当阻抗的金属材料、金属合金、石墨、碳、导电陶瓷或其它陶瓷材料和金属材料的复合材料。其中，适当的金属或合金材料包括镍、钴、锆、钛、镍合金、钴合金、锆合金、钛合金、镍铬合金、镍铁合金、铁铬合金、铁铬铝合金、铁锰铝基合金或不锈钢等中的至少一种。或者在又一些变化的实施中，加热元件32还可以包括电磁感应加热元件或红外加热元件等。In some embodiments, the heating element 32 includes a resistive heating element; and the heating element 32 can generate resistive Joule heat and generate heat when a direct current flows through the heating element 32. And in some embodiments, the material of the heating element 32 is a composite material of a metal material, a metal alloy, graphite, carbon, a conductive ceramic or other ceramic material and a metal material with appropriate impedance. Among them, the appropriate metal or alloy material includes at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, iron-manganese-aluminum-based alloy or stainless steel. Or in some other variations, the heating element 32 may also include an electromagnetic induction heating element or an infrared heating element.
在以上实施中，加热元件32是与衬底31彼此导热的；以及，衬底31通过接收加热元件32的热量而发热，进而对接收于衬底31内的气溶胶生成制品1000内进行加热。而在该实施中，加热元件32自身能通过电阻焦耳热而发热，或者是感应发热等等。或者在又一些实施中，衬底31是可透红外的，加热元件32是电致的红外发射涂层，进而电致的红外发射涂层能通过在供应电流时通过辐射红外线以穿透衬底31，至被气溶胶生成制品1000接收进而加热气溶胶生成制品1000。In the above implementation, the heating element 32 is thermally conductive with the substrate 31; and the substrate 31 is heated by receiving the heat of the heating element 32, thereby heating the aerosol generating article 1000 received in the substrate 31. In this implementation, the heating element 32 itself can generate heat through resistive Joule heat, or inductive heating, etc. Or in some other implementations, the substrate 31 is infrared-transmissive, and the heating element 32 is an electro-induced infrared emitting coating, and then the electro-induced infrared emitting coating can penetrate the substrate 31 by radiating infrared rays when current is supplied, so that it is received by the aerosol generating article 1000 and heats the aerosol generating article 1000.
以及在一些实施中，红外发射层是由Mg、Al、Ti、Zr、Mn、Fe、Co、Ni、Cu、Cr、Zn等至少一种金属元素的氧化物组成，这些金属氧化物的涂层在通电时能被加热到适当的温度时辐射具有远红外线；红外发射层的厚度优选可以控制30μm～50μm；红外发射层形成于衬底31表面的 方式可以将以上金属元素的氧化物通过大气等离子喷涂的方式喷涂在管状衬底31外表面后固化即得。In some implementations, the infrared emission layer is composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, Zn, etc., and the coating of these metal oxides can be heated to an appropriate temperature when powered on to radiate far infrared rays; the thickness of the infrared emission layer can be preferably controlled to be 30 μm to 50 μm; the infrared emission layer is formed on the surface of the substrate 31 The oxides of the above metal elements can be sprayed on the outer surface of the tubular substrate 31 by atmospheric plasma spraying and then solidified.
或者在又一些变化的实施中，加热器30可以仅包括加热元件32，由加热元件32围绕或界定形成腔室，以用于容纳气溶胶生成制品1000并直接向气溶胶生成制品1000传递热量进行加热。Or in some other variations, the heater 30 may include only the heating element 32 , and a chamber is surrounded or defined by the heating element 32 to accommodate the aerosol generating article 1000 and directly transfer heat to the aerosol generating article 1000 for heating.
进一步参见图2至图3所示，加热元件32被构造成是围绕或包围在衬底31外的筒状形状。以及，加热元件32沿加热器30的长度方向的延伸尺寸是小于衬底31的延伸尺寸的；例如在一些具体的实施中，加热元件32具有大于20～50mm的长度。具体地，例如，根据图2所示，加热器30包括沿长度方向相背离的第一端部310和第二端部320；以及具体的实施中，第一端部310和第二端部320是由衬底31沿长度方向的两端界定的。As shown in FIGS. 2 to 3 , the heating element 32 is configured to be a cylindrical shape surrounding or enclosing the substrate 31. Also, the extension dimension of the heating element 32 along the length direction of the heater 30 is smaller than the extension dimension of the substrate 31; for example, in some specific implementations, the heating element 32 has a length greater than 20 to 50 mm. Specifically, for example, according to FIG. 2 , the heater 30 includes a first end 310 and a second end 320 that are separated from each other along the length direction; and in a specific implementation, the first end 310 and the second end 320 are defined by two ends of the substrate 31 along the length direction.
加热元件32与第一端部310具有间距313，间距313的尺寸大约为3～10mm；以及，加热元件32与第二端部320具有间距314，间距314的尺寸大约为3～10mm。以及在装配后，加热元件32未完全包裹或包围衬底31的外表面，进而使衬底31的外表面在靠近第一端部310处具有由间距313界定的第一裸露区域。以及，衬底31的外表面在靠近第二端部320处具有由间距314界定的第二裸露区域。以及在装配中，气雾生成装置100内通过设置夹持或支撑部件例如PEEK环等，结合于由间距313界定的第一裸露区域、以及由间距314界定的第二裸露区域对加热器30提供支撑。The heating element 32 and the first end 310 have a spacing 313, and the size of the spacing 313 is about 3 to 10 mm; and the heating element 32 and the second end 320 have a spacing 314, and the size of the spacing 314 is about 3 to 10 mm. And after assembly, the heating element 32 does not completely wrap or surround the outer surface of the substrate 31, so that the outer surface of the substrate 31 has a first exposed area defined by the spacing 313 near the first end 310. And the outer surface of the substrate 31 has a second exposed area defined by the spacing 314 near the second end 320. And during assembly, the aerosol generating device 100 provides support for the heater 30 by providing a clamping or supporting component such as a PEEK ring, etc., combined with the first exposed area defined by the spacing 313 and the second exposed area defined by the spacing 314.
以及进一步地参见图2和图3所示的实施例，加热元件32是通过喷涂或沉积等方式形成于管状的衬底31外的电阻加热层；在该实施例中，电阻加热层是围绕衬底31至少部分的环形。以及在该实施例中，电阻加热层在加热器30的周向上是闭合的。以及在一些实施中，通过喷涂或沉积形成的呈电阻加热层的加热元件32，可以包括镍铬合金、镍铁合金、铂、钨、银、导电陶瓷等。加热元件32的电阻加热层的厚度可以大约介于0.05～0.5mm。以及，在实施中通过电阻加热层的材质和厚度的选择，使基于环形的第一电极371和第二电极372在电阻加热层的纵向方向上引导电流时，电阻加热层的电阻值大约介于0.5Ω到3Ω是有利的。And further referring to the embodiments shown in FIG. 2 and FIG. 3, the heating element 32 is a resistive heating layer formed on the outside of the tubular substrate 31 by spraying or deposition; in this embodiment, the resistive heating layer is annular around at least part of the substrate 31. And in this embodiment, the resistive heating layer is closed in the circumferential direction of the heater 30. And in some embodiments, the heating element 32 formed by spraying or deposition as a resistive heating layer may include nickel-chromium alloy, nickel-iron alloy, platinum, tungsten, silver, conductive ceramics, etc. The thickness of the resistive heating layer of the heating element 32 may be approximately between 0.05 and 0.5 mm. And, in the implementation, by selecting the material and thickness of the resistive heating layer, it is advantageous for the resistance value of the resistive heating layer to be approximately between 0.5Ω and 3Ω when the annular first electrode 371 and the second electrode 372 guide the current in the longitudinal direction of the resistive heating layer.
以及进一步地根据图2和图3所示，加热器30还包括：And further according to FIG. 2 and FIG. 3 , the heater 30 further includes:
第一电极371和第二电极372，以用于对加热元件32供电；第一电极371和第二电极372可以是电极环、电极帽或喷涂、沉积等形成的电极涂层；以及，第一电极371和第二电极372是围绕加热元件32的环 形形状；其中，The first electrode 371 and the second electrode 372 are used to supply power to the heating element 32; the first electrode 371 and the second electrode 372 can be electrode rings, electrode caps, or electrode coatings formed by spraying, deposition, etc.; and the first electrode 371 and the second electrode 372 are rings surrounding the heating element 32. Shape; among them,
第一电极371靠近加热元件32的第一端321，且至少部分围绕加热元件32，并与加热元件32接触形成导电连接；以及，第二电极372靠近加热元件32的第二端322，且至少部分围绕加热元件32，并与加热元件32接触形成导电连接；第一电极371上通过焊接导电引线331连接至电路板140，以及第二电极372上通过焊接导电引线332连接至电路板140，在加热元件32的纵向方向上引导电流。The first electrode 371 is close to the first end 321 of the heating element 32, and at least partially surrounds the heating element 32, and contacts the heating element 32 to form a conductive connection; and the second electrode 372 is close to the second end 322 of the heating element 32, and at least partially surrounds the heating element 32, and contacts the heating element 32 to form a conductive connection; the first electrode 371 is connected to the circuit board 140 by welding the conductive lead 331, and the second electrode 372 is connected to the circuit board 140 by welding the conductive lead 332, so as to guide the current in the longitudinal direction of the heating element 32.
以及，在实施中通过加热元件32的材质和厚度的选择，使基于环形的第一电极371和第二电极372在加热元件32的纵向方向上引导电流时，加热元件32的电阻值大约介于0.5Ω到3Ω是有利的。Furthermore, in practice, by selecting the material and thickness of the heating element 32 , when the annular first electrode 371 and the second electrode 372 guide the current in the longitudinal direction of the heating element 32 , the resistance value of the heating element 32 is advantageously approximately between 0.5Ω and 3Ω.
或者在又一些变化的实施中，加热元件32还可以包括通过卷绕或包裹于衬底31外的加热网。Or in some other variations, the heating element 32 may also include a heating mesh wound or wrapped around the substrate 31 .
以及进一步地参见图2和图3所示，加热器30还包括：And further referring to FIG. 2 and FIG. 3 , the heater 30 further includes:
温度传感器34，例如热敏电阻的温度传感器PT1000、又例如热电偶等，结合于加热元件32上，以用于感测加热元件32和/或加热器30的温度。The temperature sensor 34 , such as a thermistor temperature sensor PT1000 or a thermocouple, is coupled to the heating element 32 to sense the temperature of the heating element 32 and/or the heater 30 .
以及在该实施中，温度传感器34与加热元件32的结合位置或测温位置，基本是位于加热元件32的纵向中心的位置；或者，温度传感器34与加热元件32的结合位置与加热元件32的第一端321的距离，大约介于加热元件32长度尺寸的1/3～1/3。在一些具体实施中，温度传感器34与加热元件32的结合位置，基本是靠近或位于加热元件32的纵向中心的，则使温度传感器34基本是位于加热元件32的最高温区域的。例如图4示出了喷涂的电阻加热层的加热元件32在工作中温场分布图，通过图4可以看出加热元件32的最高温区域基本是靠近或位于纵向中心的，且中心区域的温度显著地高于靠近两端的区域。And in this implementation, the combination position or temperature measurement position of the temperature sensor 34 and the heating element 32 is basically located at the longitudinal center of the heating element 32; or, the distance between the combination position of the temperature sensor 34 and the heating element 32 and the first end 321 of the heating element 32 is approximately between 1/3 and 1/3 of the length of the heating element 32. In some specific implementations, the combination position of the temperature sensor 34 and the heating element 32 is basically close to or located at the longitudinal center of the heating element 32, so that the temperature sensor 34 is basically located in the highest temperature area of the heating element 32. For example, FIG. 4 shows a temperature field distribution diagram of the heating element 32 of the sprayed resistance heating layer during operation. It can be seen from FIG. 4 that the highest temperature area of the heating element 32 is basically close to or located at the longitudinal center, and the temperature of the central area is significantly higher than that of the areas close to both ends.
以及在又一些实施中，加热器30还包括：And in some further implementations, the heater 30 further comprises:
表面绝缘层，通过喷涂或沉积或包覆等方式形成于加热元件32和/或第一电极371和/或第二电极372外，以在加热器30的外表面上对它们提供绝缘。在一些实施中，表面绝缘层是喷涂或沉积等形成的釉层等。The surface insulating layer is formed on the outside of the heating element 32 and/or the first electrode 371 and/or the second electrode 372 by spraying, deposition or coating, etc., to provide insulation for them on the outer surface of the heater 30. In some implementations, the surface insulating layer is a glaze layer formed by spraying, deposition or the like.
或者图5示出了又一个实施例的加热器30的示意图，在该实施例中加热器30包括：Alternatively, FIG. 5 shows a schematic diagram of a heater 30 according to another embodiment, in which the heater 30 comprises:
电绝缘的衬底31a，被构造成围绕或界定腔室的管状形状；以及，衬底31a具有沿纵向方向相背离的第三端部310a和第四端部320a；An electrically insulating substrate 31a is configured in a tubular shape surrounding or defining the chamber; and the substrate 31a has a third end 310a and a fourth end 320a that are separated from each other in a longitudinal direction;
电阻加热轨迹32a，通过丝网印刷或喷涂或沉积等工艺结合于衬底31a外表面；电阻加热轨迹32a是在第一端321a和第二端322a往复迂 回或弯折延伸的；以及，电阻加热轨迹32a的两端通过焊接引线等方式连接至电路板140，进而能当电流流过时通过电阻焦耳热而发热。The resistance heating track 32a is bonded to the outer surface of the substrate 31a by screen printing, spraying or deposition. The resistance heating track 32a is reciprocated between the first end 321a and the second end 322a. and, both ends of the resistance heating track 32a are connected to the circuit board 140 by welding leads or the like, so that when current flows through, it can generate heat by the resistance Joule heat.
以及，电阻加热轨迹32a是蜿蜒迂回的轨迹；并且，衬底31a的外表面上具有由电阻加热轨迹32a界定的空白区域311a；以用于贴装温度传感器等。Furthermore, the resistance heating track 32a is a meandering track; and, the outer surface of the substrate 31a has a blank area 311a defined by the resistance heating track 32a, for mounting a temperature sensor and the like.
以及进一步地在实施中，采用以上陶瓷、玻璃或石英的衬底31/31a的管壁厚度介于0.1～0.2mm，对于在加热过程中控制衬底31/32a的温度升温或降温是更加灵敏的。Furthermore, in practice, the wall thickness of the substrate 31/31a made of ceramic, glass or quartz is between 0.1 and 0.2 mm, which is more sensitive to controlling the temperature rise or fall of the substrate 31/32a during the heating process.
以及在一些实施中，具有以上特定壁厚的衬底31/31a，通过目前常用的模制或机加工打孔等是无法制备的。进一步地图6示出了一个实施例中制备管壁厚度介于0.1～0.2mm的超薄管壁的衬底31/31a的示意图；在该图6所示的实施中，将以陶瓷原料于模具注塑获得的衬底31/31a，通过无心外圆磨削工艺从外圆表面进行磨削降低其壁厚，使其达到0.1～0.2mm的壁厚。其中，以上“无心外圆磨削”是机械加工的术语，在机械加工领域中是指在无心外圆磨机床上，将工件不装夹直接放置在砂轮与导轮之间并由托板和/或导轮支撑，而后以工件被磨削的外圆表面本身作为定位基准面，进行磨削工件外圆的磨削方法。例如在图6所示的实施例中，衬底31/31a被无心外圆磨机床的砂轮1和砂轮2从衬底31/31a外圆表面进行磨削；以及，衬底31/31a是被无心外圆磨机床的托板和/或导轮4支撑和引导转动的。And in some implementations, the substrate 31/31a with the above specific wall thickness cannot be prepared by currently commonly used molding or machining punching. Further, Figure 6 shows a schematic diagram of preparing a substrate 31/31a with an ultra-thin wall thickness of 0.1 to 0.2 mm in one embodiment; in the implementation shown in Figure 6, the substrate 31/31a obtained by injection molding a ceramic raw material in a mold is ground from the outer cylindrical surface through a centerless cylindrical grinding process to reduce its wall thickness to a wall thickness of 0.1 to 0.2 mm. Among them, the above "centerless cylindrical grinding" is a term for mechanical processing. In the field of mechanical processing, it refers to a grinding method in which a workpiece is placed directly between a grinding wheel and a guide wheel without clamping and supported by a support plate and/or a guide wheel on a centerless cylindrical grinding machine, and then the outer cylindrical surface of the workpiece to be ground is used as a positioning reference surface to grind the outer cylindrical surface of the workpiece. For example, in the embodiment shown in Figure 6, the substrate 31/31a is ground from the outer cylindrical surface of the substrate 31/31a by the grinding wheels 1 and 2 of the centerless cylindrical grinding machine; and the substrate 31/31a is supported and guided to rotate by the support plate and/or guide wheel 4 of the centerless cylindrical grinding machine.
通过无心外圆磨机床，对衬底31/31a的外圆表面进行磨削，将由陶瓷原料注塑后烧结获得壁厚大于0.6mm的管状的衬底31/31a磨削至壁厚为0.1～0.2mm。The outer cylindrical surface of the substrate 31/31a is ground by a centerless cylindrical grinding machine, and the tubular substrate 31/31a with a wall thickness greater than 0.6 mm obtained by injection molding and sintering of ceramic raw materials is ground to a wall thickness of 0.1-0.2 mm.
或者在一些实施中，例如图7中还可以采用无心内圆磨机床通过至少一个砂轮***或伸入至衬底31/31a内进行磨削加工的示意图；通过砂轮1a伸入至衬底31/31a内并结合于衬底31/31a的内圆表面，并由砂轮2a抵靠于衬底31/31a的外圆表面进行磨削。以及在无心内圆磨机床加工中，衬底31/31a由导轮4a和导轮5a提供支撑和转动牵引。通过内圆磨的机床加工，将由陶瓷原料模具注塑后烧结的壁厚大于0.6mm的管状的衬底31/31a磨削至壁厚为0.1～0.2mm。Or in some implementations, for example, in FIG7 , a schematic diagram of a centerless internal cylindrical grinding machine tool can be used to insert or extend at least one grinding wheel into the substrate 31/31a for grinding; the grinding wheel 1a extends into the substrate 31/31a and combines with the inner cylindrical surface of the substrate 31/31a, and the grinding wheel 2a abuts against the outer cylindrical surface of the substrate 31/31a for grinding. And in the centerless internal cylindrical grinding machine tool processing, the substrate 31/31a is supported and rotated by the guide wheel 4a and the guide wheel 5a. Through the internal cylindrical grinding machine tool processing, the tubular substrate 31/31a with a wall thickness greater than 0.6mm, which is sintered after injection molding of the ceramic raw material mold, is ground to a wall thickness of 0.1 to 0.2mm.
进一步地在实施中，按照三点抗弯强度测试标准:GBT6569-2006，以三点抗弯强度测试机对管壁为0.18mm的氧化铝陶瓷衬底31/31a与管壁为0.6mm的氧化铝陶瓷衬底31/31a进行强度测试；测试结果中，三点抗弯强度测试中，上端点、中点、下端点的强度结果参见下表：
Further, in the implementation, according to the three-point bending strength test standard: GBT6569-2006, a three-point bending strength tester was used to perform strength tests on the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm and the alumina ceramic substrate 31/31a with a tube wall of 0.6 mm; in the test results, in the three-point bending strength test, the strength results of the upper end point, the middle point, and the lower end point are shown in the following table:
通过以上三点抗弯强度测试中，通过将直接注塑烧结的0.6mm的陶瓷管衬底31/31a，进行圆磨减薄至管壁为0.18mm后陶瓷管衬底31/31a的强度有明显下降。同时，以减薄后的衬底31/31a的全部测试位点的抗压强度仍然保持在大于40N，对于沉积或喷涂电阻加热层或轨迹的加热元件32是完全可实施的。Through the above three-point bending strength test, the strength of the ceramic tube substrate 31/31a is significantly reduced after the 0.6mm ceramic tube substrate 31/31a directly injected and sintered is thinned to 0.18mm by circular grinding. At the same time, the compressive strength of all test sites of the thinned substrate 31/31a is still maintained at more than 40N, which is completely feasible for the heating element 32 deposited or sprayed with a resistance heating layer or track.
以及，图8示出了一个实施例中加热器30采用管壁为0.18mm的氧化铝陶瓷衬底31/31a与管壁为0.6mm的氧化铝陶瓷衬底31/31a加热过程的升温曲线图；在图8所示的对比中，衬底31/31a的内径均为5.7mm、长度为49mm，提供给加热器30的功率为30W。从图8的对比结果中，管壁为0.18mm的氧化铝陶瓷衬底31/31a由室温上升至目标温度320℃大约为29s，管壁为0.6mm的氧化铝陶瓷衬底31/31a由室温上升至目标温度320℃大约为48s。进而0.18mm的氧化铝陶瓷衬底31/31a的加热器40，具有更快的温度灵敏性。管壁为0.18mm的氧化铝陶瓷衬底31/31a由室温上升至目标温度320℃的时间低于30s。In addition, FIG8 shows a heating curve of a heater 30 in an embodiment using an alumina ceramic substrate 31/31a with a tube wall of 0.18 mm and an alumina ceramic substrate 31/31a with a tube wall of 0.6 mm; in the comparison shown in FIG8 , the inner diameter of the substrate 31/31a is 5.7 mm, the length is 49 mm, and the power provided to the heater 30 is 30 W. From the comparison results of FIG8 , the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm rises from room temperature to the target temperature of 320°C in about 29 seconds, and the alumina ceramic substrate 31/31a with a tube wall of 0.6 mm rises from room temperature to the target temperature of 320°C in about 48 seconds. Thus, the heater 40 with an alumina ceramic substrate 31/31a with a tube wall of 0.18 mm has a faster temperature sensitivity. The time for the alumina ceramic substrate 31/31a with a tube wall of 0.18 mm to rise from room temperature to the target temperature of 320°C is less than 30 seconds.
进一步地图9示出了一个实施例中对气溶胶生成制品1000在预定时间内的加热曲线的示意图。其中，在图9所示中，预定时间是基于气溶胶生成制品1000所能产生的气溶胶的量、以及用户所乐于接受的抽吸时长(例如约4min)所设置的；以及具有预定时间的加热曲线包括：FIG9 further shows a schematic diagram of a heating curve of an aerosol generating article 1000 within a predetermined time in one embodiment. In FIG9 , the predetermined time is set based on the amount of aerosol that can be generated by the aerosol generating article 1000 and the puffing time (e.g., about 4 minutes) that the user is willing to accept; and the heating curve with the predetermined time includes:
时间阶段S1(0-t1时间，例如可以大约10s)：由室温快速升温至第一目标温度T1进行预热；第一目标温度例如350℃；Time stage S1 (0-t1 time, for example, about 10s): quickly heating from room temperature to a first target temperature T1 for preheating; the first target temperature is, for example, 350°C;
时间阶段S2(t1-t2时间，例如可以大约5s)：由第一目标温度T1下降至第二目标温度T2，例如320℃；Time stage S2 (t1-t2 time, for example, about 5 seconds): the temperature drops from the first target temperature T1 to the second target temperature T2, for example, 320° C.;
时间阶段S3(t2-t3时间，例如可以大约230s)：气溶胶生成制品 1000基本维持在第二目标温度T2下被加热生成供抽吸的气溶胶；抽吸完成后停止向加热器30提供功率，自然冷却。Time stage S3 (t2-t3 time, for example, about 230s): aerosol generating product 1000 is basically maintained at the second target temperature T2 to be heated to generate an aerosol for inhalation; after the inhalation is completed, the power supply to the heater 30 is stopped and the aerosol is cooled naturally.
以及在本申请的又一些实施中，对采用管壁为0.6mm的氧化铝陶瓷衬底31/31a、以及圆磨工艺减薄至管壁为0.18mm的氧化铝陶瓷衬底31/31a的加热器30，按照图9所示的具有预定时间的加热曲线加热相同的气溶胶生成制品1000，测得的能耗对比结果如下表。
In some other embodiments of the present application, a heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.6 mm and an alumina ceramic substrate 31/31a thinned to a tube wall of 0.18 mm by a circular grinding process is used to heat the same aerosol generating product 1000 according to the heating curve with a predetermined time as shown in FIG9 , and the measured energy consumption comparison results are shown in the following table.
从以上能耗对照可以看出，按照预定温度曲线以约240s的加热抽吸时长加热气溶胶生成制品1000时，采用管壁为0.18mm的氧化铝陶瓷衬底31/31a的加热器30相比具有更低的能耗，大约比管壁为0.6mm的氧化铝陶瓷衬底31/31a的加热器30的能耗要低60～70J；对于减薄后管壁低于0.2mm的衬底31/31a的加热器30，对于降低能耗是有利的。From the above energy consumption comparison, it can be seen that when the aerosol generating product 1000 is heated according to a predetermined temperature curve with a heating and suction time of about 240s, the heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.18mm has lower energy consumption, which is about 60 to 70J lower than the energy consumption of the heater 30 using an alumina ceramic substrate 31/31a with a tube wall of 0.6mm; for the heater 30 with a substrate 31/31a with a tube wall less than 0.2mm after thinning, it is beneficial to reduce energy consumption.
或者图10示出了又一个实施例中制备具有低于0.2mm管壁厚度的衬底31/31a的加热器30的示意图；在图10中加热器30的制备包括：Alternatively, FIG. 10 shows a schematic diagram of preparing a heater 30 having a substrate 31 / 31a with a tube wall thickness less than 0.2 mm in another embodiment; in FIG. 10 , the preparation of the heater 30 includes:
获取形成衬底31/31a的原料例如陶瓷粉、玻璃粉、石英粉等，并将原料与流延工艺的液体助剂混合形成具有流动性的浆料；Obtain raw materials for forming the substrate 31/31a, such as ceramic powder, glass powder, quartz powder, etc., and mix the raw materials with a liquid additive for a tape casting process to form a slurry with fluidity;
将浆料通过流延设备进行流延形成厚度低于0.2mm的薄膜31b；The slurry is cast through a casting device to form a film 31b with a thickness of less than 0.2 mm;
并于流延形成的薄膜31b上印刷或沉积或喷涂电阻加热层或轨迹式的加热元件32；A resistive heating layer or a track-type heating element 32 is printed, deposited or sprayed on the film 31b formed by casting;
将薄膜31b于管状治具外卷绕成管状，并烧结形成管壁厚度低于0.2mm的衬底31/31a。The film 31b is rolled into a tube outside a tubular fixture and sintered to form a substrate 31/31a with a tube wall thickness of less than 0.2 mm.
需要说明的是，本申请的说明书及其附图中给出了本申请的较佳的实施例，但并不限于本说明书所描述的实施例，进一步地，对本领域普 通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本申请所附权利要求的保护范围。 It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. It is apparent to those skilled in the art that improvements or changes can be made based on the above description, and all these improvements and changes should fall within the protection scope of the claims attached to this application.

Claims (14)

  1. 一种气雾生成装置，被配置为加热气溶胶生成制品生成气溶胶；其特征在于，包括：An aerosol generating device is configured to heat an aerosol generating article to generate an aerosol; characterized by comprising:
    腔室，用于接收气溶胶生成制品；a chamber for receiving the aerosol generating article;
    电绝缘的衬底，被构造成是管状且至少部分围绕或界定所述腔室；an electrically insulating substrate configured to be tubular and at least partially surround or define the chamber;
    加热元件，结合于所述衬底并包围所述衬底的至少一部分；a heating element bonded to the substrate and surrounding at least a portion of the substrate;
    所述衬底与所述加热元件是彼此导热的；在使用中，所述衬底能通过接收所述加热元件的热量而发热，转而加热气溶胶生成制品；The substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element, thereby heating the aerosol generating article;
    所述衬底包括陶瓷、玻璃、石英中的至少一种，且所述衬底的管壁厚度低于0.2mm。The substrate includes at least one of ceramic, glass and quartz, and the tube wall thickness of the substrate is less than 0.2 mm.
  2. 如权利要求1所述的气雾生成装置，其特征在于，所述衬底不包括金属的单质。The aerosol generating device according to claim 1, wherein the substrate does not contain a single metal substance.
  3. 如权利要求1或2所述的气雾生成装置，其特征在于，所述衬底的管壁厚度介于0.1～0.2mm。The aerosol generating device according to claim 1 or 2, characterized in that the tube wall thickness of the substrate is between 0.1 and 0.2 mm.
  4. 如权利要求1或2所述的气雾生成装置，其特征在于，所述衬底由管状的前体于圆磨机床进行圆磨使管壁减薄后形成。The aerosol generating device according to claim 1 or 2 is characterized in that the substrate is formed by grinding a tubular precursor on a cylindrical grinding machine to thin the tube wall.
  5. 如权利要求1或2所述的气雾生成装置，其特征在于，按照三点抗弯强度测试方法对所述衬底进行测试，所述衬底全部测试位点的抗弯强度均大于40N。 The aerosol generating device according to claim 1 or 2, characterized in that the substrate is tested according to a three-point bending strength test method, and the bending strength of all test points of the substrate is greater than 40N.
  6. 如权利要求1或2所述的气雾生成装置，其特征在于，所述加热元件包括形成或结合于衬底上的加热层。The aerosol generating device according to claim 1 or 2, characterized in that the heating element comprises a heating layer formed on or bonded to the substrate.
  7. 如权利要求6所述的气雾生成装置，其特征在于，所述加热层被构造成是围绕所述衬底的环形形状。The aerosol generating device according to claim 6, characterized in that the heating layer is configured in an annular shape surrounding the substrate.
  8. 如权利要求7所述的气雾生成装置，其特征在于，所述衬底包括沿纵向方向相背离的第一端和第二端；The aerosol generating device according to claim 7, characterized in that the substrate comprises a first end and a second end which are separated from each other in a longitudinal direction;
    第一电极，结合于所述衬底并靠近所述第一端布置；a first electrode, coupled to the substrate and arranged close to the first end;
    第二电极，结合于所述衬底并靠近所述第二端布置；a second electrode, coupled to the substrate and arranged close to the second end;
    所述加热层被构造成是于所述第一电极和第二电极之间延伸，并由所述第一电极和第二电极在所述加热层的纵向方向上引导电流。The heating layer is configured to extend between the first electrode and the second electrode, and the first electrode and the second electrode guide current in a longitudinal direction of the heating layer.
  9. 如权利要求1或2所述的气雾生成装置，其特征在于，当通过所述第一电极和第二电极在所述加热层的纵向方向上引导电流时，所述加热层的电阻介于0.5Ω到3Ω。The aerosol generating device according to claim 1 or 2, characterized in that when the current is guided in the longitudinal direction of the heating layer through the first electrode and the second electrode, the resistance of the heating layer is between 0.5Ω and 3Ω.
  10. 如权利要求1或2所述的气雾生成装置，其特征在于，当所述加热元件在30W的供电功率下加热时，所述衬底被构造成能在30s内由室温加热至320℃。The aerosol generating device according to claim 1 or 2, characterized in that when the heating element is heated at a power supply of 30 W, the substrate is configured to be heated from room temperature to 320° C. within 30 seconds.
  11. 如权利要求1或2所述的气雾生成装置，其特征在于，所述衬底具有5.4～7.8mm的内径；The aerosol generating device according to claim 1 or 2, characterized in that the substrate has an inner diameter of 5.4 to 7.8 mm;
    和/或，气溶胶生成制品由所述衬底所围绕或包围的长度大于30mm。 And/or, the length of the aerosol-generating article surrounded or enclosed by the substrate is greater than 30 mm.
  12. 一种用于气雾生成装置的加热器，其特征在于，包括：A heater for an aerosol generating device, characterized by comprising:
    电绝缘的衬底，被构造成是管状；an electrically insulating substrate configured to be tubular;
    加热元件，结合于所述衬底并包围所述衬底的至少一部分；a heating element coupled to the substrate and surrounding at least a portion of the substrate;
    所述衬底与所述加热元件是彼此导热的；在使用中，所述衬底能通过接收所述加热元件的热量而发热；所述衬底包括陶瓷、玻璃、石英中的至少一种，且所述衬底具有低于0.2mm的管壁厚度。The substrate and the heating element are thermally conductive to each other; in use, the substrate can generate heat by receiving heat from the heating element; the substrate comprises at least one of ceramic, glass, and quartz, and has a tube wall thickness of less than 0.2 mm.
  13. 一种用于气雾生成装置的加热器，其特征在于，包括：A heater for an aerosol generating device, characterized by comprising:
    石英管；Quartz tube;
    红外发射涂层，喷涂或沉积于所述石英管的外表面并包围所述石英管的至少一部分，以用于向所述石英管的管状中空内辐射红外线；An infrared emitting coating, sprayed or deposited on the outer surface of the quartz tube and surrounding at least a portion of the quartz tube, for radiating infrared rays into the tubular hollow of the quartz tube;
    所述石英管具有低于0.2mm的管壁厚度。The quartz tube has a tube wall thickness of less than 0.2 mm.
  14. 一种用于气雾生成装置的加热器的制备方法，其特征在于，包括：A method for preparing a heater for an aerosol generating device, characterized by comprising:
    获取管状的前体；所述前体包括陶瓷、玻璃、石英中的至少一种，且所述前体具有大于0.2mm的管壁厚度；Obtaining a tubular precursor; the precursor comprises at least one of ceramic, glass, and quartz, and the precursor has a tube wall thickness greater than 0.2 mm;
    将所述管状的前体于圆磨机床进行磨削至管壁厚度低于0.2mm，获得电绝缘的衬底；Grinding the tubular precursor on a cylindrical grinding machine until the tube wall thickness is less than 0.2 mm to obtain an electrically insulating substrate;
    于所述衬底上形成加热元件。 A heating element is formed on the substrate.
PCT/CN2023/129985 2022-11-24 2023-11-06 Aerosol generating device, heater for aerosol generating device and preparation method WO2024109531A1 (en)

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Citations (5)

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CN215347057U (en) * 2021-03-29 2021-12-31 深圳市合元科技有限公司 Gas mist generating device and resistance heater for gas mist generating device
CN114983030A (en) * 2021-03-01 2022-09-02 深圳市合元科技有限公司 Gas mist generating device and resistance heater for gas mist generating device
CN217609592U (en) * 2022-04-30 2022-10-21 深圳市合元科技有限公司 Gas mist generating device and heater for gas mist generating device
CN219353088U (en) * 2022-11-24 2023-07-18 深圳市合元科技有限公司 Gas mist generating device and heater for gas mist generating device

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CN211910542U (en) * 2019-12-20 2020-11-13 深圳市合元科技有限公司 Gas mist generating device and heating mechanism for gas mist generating device
CN114983030A (en) * 2021-03-01 2022-09-02 深圳市合元科技有限公司 Gas mist generating device and resistance heater for gas mist generating device
CN215347057U (en) * 2021-03-29 2021-12-31 深圳市合元科技有限公司 Gas mist generating device and resistance heater for gas mist generating device
CN217609592U (en) * 2022-04-30 2022-10-21 深圳市合元科技有限公司 Gas mist generating device and heater for gas mist generating device
CN219353088U (en) * 2022-11-24 2023-07-18 深圳市合元科技有限公司 Gas mist generating device and heater for gas mist generating device

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