WO2024114367A1 - Dispositif de génération d'aérosol et dispositif de chauffage pour dispositif de génération d'aérosol - Google Patents

Dispositif de génération d'aérosol et dispositif de chauffage pour dispositif de génération d'aérosol Download PDF

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Publication number
WO2024114367A1
WO2024114367A1 PCT/CN2023/131537 CN2023131537W WO2024114367A1 WO 2024114367 A1 WO2024114367 A1 WO 2024114367A1 CN 2023131537 W CN2023131537 W CN 2023131537W WO 2024114367 A1 WO2024114367 A1 WO 2024114367A1
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WO
WIPO (PCT)
Prior art keywords
aerosol generating
generating device
heating coil
heater
porous matrix
Prior art date
Application number
PCT/CN2023/131537
Other languages
English (en)
Chinese (zh)
Inventor
张淑媛
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
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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 WO2024114367A1 publication Critical patent/WO2024114367A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • 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
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating device and a heater for the aerosol generating 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.
  • patent application No. CN202010054217.6 proposes heating a tobacco product to generate an aerosol by encapsulating a spiral heating wire in an outer sleeve.
  • an aerosol generating device which is configured to heat an aerosol generating article to generate an aerosol; comprising: a heater, which is inserted into the aerosol generating article for heating; the heater comprises:
  • the housing comprises a free front end and a terminal end which are separated from each other in the length direction, and a cavity extending between the free front end and the terminal end;
  • the heating coil is located in the cavity and at least partially surrounds the porous matrix.
  • the apparent density of the porous matrix is between 1 g/cm3 and 3 g/cm3.
  • the thermal conductivity of the material of the porous matrix is between 1 and 25 W/m.K.
  • the porosity of the porous matrix is between 30% and 80%.
  • the pore size of the micropores in the porous matrix is between 10 and 2000 ⁇ m.
  • the porous matrix comprises porous ceramic and/or porous glass.
  • the porous matrix does not include a single element of metal.
  • the heating coil includes a first end close to the free front end and a second end close to the end along its axial direction;
  • the heater further comprises: a first conductive pin and a second conductive pin for supplying power to the heating coil; wherein,
  • the first conductive pin is connected to the first end and at least partially extends from the first end to the outside of the terminal; the second conductive pin is connected to the second end and at least partially extends from the second end to the outside of the terminal.
  • the porous matrix is tubular and defines through holes that penetrate the porous matrix in the longitudinal direction;
  • the first conductive pin is at least partially located in the through hole.
  • the wall thickness of the porous matrix is greater than 0.2 mm.
  • the heater further comprises:
  • the filler is located in the cavity of the shell and at least partially fills the space between the heating coil and the shell; the thermal expansion coefficient of the filler is not less than 8ppm/°C.
  • the filler includes at least one of glass powder, barium oxide powder, silicon dioxide powder, boron oxide powder, aluminum oxide powder or magnesium oxide powder.
  • the heating coil can generate heat due to resistive Joule heating when a direct current flows through it; the heating coil and the housing are thermally conductive to each other, so that the housing can generate heat by receiving heat from the heating coil, thereby heating the aerosol generating product.
  • the heating coil is arranged to generate a changing magnetic field when an alternating current flows through it;
  • the housing is configured to be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol-generating article.
  • Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:
  • the housing is configured in the shape of a pin or needle and includes a free front end and a terminal end that are separated from each other in the length direction, and a cavity extending between the free front end and the terminal end;
  • the heating coil is located in the cavity and at least partially surrounds the porous matrix.
  • the heating coil of the heater is arranged around the porous substrate, which is beneficial for increasing the length of the high temperature zone of the heater and reducing power consumption.
  • FIG1 is a schematic diagram of an aerosol generating device provided by an embodiment
  • FIG2 is a schematic 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 cross-sectional electron micrograph of a heater prepared in one embodiment
  • FIG5 is a scanning electron microscope image of a cross section of a substrate in one embodiment
  • FIG6 is a diagram of temperature field test results of a heater during heating in one embodiment
  • FIG8 is a schematic diagram of a heating curve for heating an aerosol generating article according to a predetermined time in one embodiment
  • FIG. 10 is a temperature test result at the housing surface B1 in the embodiment and the comparative example.
  • An embodiment of the present application provides an aerosol generating device, the structure of which can be seen in FIG1 , including:
  • the chamber has an opening 40; in use, the aerosol generating article 1000 can pass through the opening of the chamber 40 is removably received in the chamber or removed from the chamber;
  • a heater 30 extending at least partially within the chamber and inserted into the aerosol generating article 1000 to heat the aerosol generating article 1000 when the aerosol generating article 1000 is received in the chamber, thereby causing the aerosol generating article 1000 to release a plurality of volatile compounds, and the volatile compounds are formed only by the heating process;
  • Battery cell 10 used for power supply
  • the circuit 20 is used to guide the current between the battery cell 10 and the heater 30 .
  • the heater 30 is generally in the shape of a pin, a needle, a rod, a bar, a column, a sheet or a plate, which is advantageous for insertion into the aerosol generating article 1000; at the same time, the heater 30 can have a length of approximately 12 to 20 mm and an outer diameter of approximately 2 to 4 mm.
  • the aerosol generating article 1000 preferably uses a tobacco-containing material that releases volatile compounds from the substrate when heated; or it can also be a non-tobacco material that can be heated and suitable for electric heating and smoking.
  • the aerosol generating article 1000 preferably uses a solid substrate, which can include one or more of powder, particles, fragments, strips or sheets of one or more of herb leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; or, the solid substrate can contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.
  • the aerosol generating article 1000 when the aerosol generating article 1000 is partially received in the aerosol generating device for heating, the aerosol generating article 1000 is partially exposed outside the aerosol generating device, for example, the filter mouthpiece is located outside the aerosol generating device, which is convenient for the user to inhale.
  • the heater 30 may generally include a resistive heating element, and an auxiliary substrate to assist in the preparation of the resistive heating element fixation, etc.
  • the resistive heating element is in the shape or form of a spiral coil.
  • the resistive heating element is in the form of a conductive track bonded to a substrate.
  • the resistive heating element is in the shape of a thin sheet.
  • FIGS. 2 to 4 show schematic diagrams of a heater 30 according to an embodiment; the heater 30 according to the embodiment comprises a free front end 311 and a rear end 312 opposite to each other along the length direction; wherein the free front end 311 is a tapered tip for being inserted into the aerosol generating article 1000; specifically, the heater 30 comprises:
  • the housing 31 is configured to be in the shape of a pin, needle, column or rod; and the two opposite ends of the housing 31 along the length direction respectively define a free front end 311 and a terminal end 312 of the heater 30; and the housing 31 has a cavity extending between the free front end 311 and the terminal end 312. The cavity is opened or exposed at the terminal end 312, so as to facilitate the assembly of various functional components therein.
  • the housing 31 is provided with:
  • the porous matrix 313 is configured to extend along the length direction of the shell 31; in a specific shape, the porous matrix 313 can be configured to be tubular; and the porous matrix 313 is made of insulating material, such as ceramic, glass, etc.
  • the heating coil 32 surrounds and is combined with the porous matrix 313 ; and is supported by the porous matrix 313 , thereby being stably maintained in the cavity of the shell 31 .
  • the shell 31 has a length of 12 to 20 mm; the shell 31 has an outer diameter of about 2.0 to 2.8 mm, and a wall thickness of about 0.1 to 0.3 mm; the inner diameter of the cavity of the shell 31 is about 1.5 to 2.1 mm, and the length of the cavity is about 12 to 18 mm.
  • the shell 31 is made of stainless steel, such as 340 grade or 304 grade stainless steel. Or in some other embodiments, the shell 31 may also include ceramics.
  • the heating coil 32 is configured in the form of a spiral heating wire or a spiral tube coil extending along a portion of the axial direction of the housing 31 .
  • the heating coil 32 is completely assembled and held in the cavity of the housing 31 , and the heating coil 32 and the housing 31 are thermally conductive to each other after assembly.
  • the heating coil 32 is a resistance heating coil that generates heat through resistance Joule heat when a direct current flows through the heating coil 32.
  • the heating coil 32 is made of a metal material, a metal alloy, graphite, carbon, a conductive ceramic or a metal-ceramic composite 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 housing 31 is made of a heat-conductive metal or alloy material, such as stainless steel. Also, the heating coil 32 and the inner surface of the cavity of the housing 31 are insulated from each other. Also, in this embodiment, the housing 31 can generate heat by receiving the resistance Joule heat of the heating coil 32, and in turn heat the aerosol generating article 1000.
  • the heating coil 32 can be provided with an alternating current by the circuit 20, so that the heating coil 32 generates a changing magnetic field when the alternating current flows through it.
  • the housing 31 is made of a sensitive material such as 430 grade stainless steel, nickel-iron alloy, etc., so that the housing 31 can be penetrated by the changing magnetic field and generate induction heat, thereby heating the aerosol generating article 1000.
  • the heating wire is configured as a solenoid coil.
  • the cross-sectional shape of the conductor material of the coil 32 is a wide or flat shape different from the conventional circular shape.
  • the cross-sectional area of the conductor material of the heating coil 32 has a dimension extending in the longitudinal direction that is greater than the dimension extending in the radial direction perpendicular to the longitudinal direction, so that the cross-sectional area of the conductor material of the heating coil 32 is in a flat rectangular shape.
  • the heating coil 32 constructed above is completely or at least flattened in the form of the conductor material compared to the conventional spiral heating coil formed by the circular cross-sectional conductor. Therefore, the conductor material extends in the radial direction to a lesser extent. By this measure, the energy loss in the heating coil 32 can be reduced. In particular, the transfer of the heat generated by the heating coil 32 radially toward the housing 31 can be promoted.
  • the heating coil 32 may also be made of a conventional wire material with a circular cross-section.
  • the spiral heating coil 32 has about 6 to 18 turns and a length of about 8 to 15 mm. Also, the outer diameter of the heating coil 32 is no more than 1.9 mm at most, for example, the outer diameter of the heating coil 32 may be between 1.6 and 1.9 mm.
  • the spacing between adjacent turns of the heating coil 32 is constant; for example, in some embodiments, the spacing between adjacent turns of the heating coil 32 is in the range of 0.025 to 0.3 mm; for example, in some embodiments, the spacing between adjacent turns of the heating coil 32 is in the range of 0.05 to 0.15 mm.
  • the heater 30 further includes:
  • the first conductive pin 321 and the second conductive pin 322 are used to supply power to the heating coil 32.
  • the first end and the second end of the heating coil 32 which is configured as a solenoid coil, along the axial direction are respectively connected to the first conductive pin 321 and the second conductive pin 322 to form conduction.
  • the first end of the heating coil 32 which is close to the free front end 311, is connected to the first conductive pin 321 by welding or the like to form conduction.
  • the second end of the heating coil 32 which is close to the end 312, is directly connected to the second conductive pin 322 by welding or the like to form conduction.
  • first conductive pin 321 and the second conductive pin 322 are elongated wires.
  • the first conductive pin 321 and the second conductive pin 322 are made of metal wires with low resistivity, such as nickel wire, silver-plated nickel wire, copper wire, nickel-plated copper wire, etc.
  • the first conductive pin 321 and the second conductive pin 322 are respectively connected to the circuit 20 to guide current on the heating coil 32.
  • the porous matrix 313 has a through hole 314 extending longitudinally therethrough; after assembly, the first conductive pin 321 is a through hole 314 that penetrates or passes through the porous matrix 313; the first conductive pin 321 is a first end of the heating coil 32 close to the free front end 311, penetrates the through hole 314 of the porous matrix 313 and then extends to the outside of the end 312.
  • the first conductive pin 321 and/or the second conductive pin 322 have a diameter of about 0.2-0.45 mm; for example, in a specific embodiment, the first conductive pin 321 and/or the second conductive pin 322 have a diameter of 0.25 mm.
  • the porous matrix 313 has a length of about 8 to 15 mm and an outer diameter of about 1.0 to 1.5 mm. Also, the through hole 314 of the porous matrix 313 has a diameter of about 0.5 mm.
  • the wall thickness of the tubular porous matrix 313 is greater than 0.2 mm; for example, in a specific embodiment, the wall thickness of the tubular porous matrix 313 is 0.5 mm, which is beneficial for maintaining the strength of the porous matrix 313.
  • the porous matrix 313 and the heating coil 32 are substantially the same length.
  • a gap is maintained between the second end of the heating coil 32 and the terminal 312; for example, the second end of the heating coil 32 and the terminal 312 have a gap of about 3 to 8 mm.
  • the porous matrix 313 and the terminal 312 also have a gap of about 3 to 8 mm.
  • the heater 30 further includes:
  • the flange 34 includes heat-resistant ceramics, organic polymers such as PEEK, etc.
  • the flange 34 surrounds or is combined with the housing 31 and is arranged near the end 312.
  • the aerosol generating device can stably install or assemble the heater 30 by clamping or fixing the flange 34.
  • the flange 34 is formed by molding the above materials around the housing 31.
  • the flange 34 avoids the heating coil 32; and in some embodiments, the flange 34 maintains a spacing of at least 1 mm between the heating coil 32.
  • the flange 34 is located between the heating coil 32 and the end 312. And the flange 34 surrounds the outer shell 31 in an annular shape; and the flange 34 has a thickness of about 2 to 5 mm.
  • the porous matrix 313 includes a porous material; for example, in some embodiments, the tubular porous matrix 313 includes porous glass, porous ceramics such as porous alumina ceramics, porous zirconia ceramics, etc. In addition, the tubular porous matrix 313 does not include a single metal; or the porous matrix 313 does not include an alloy.
  • the porous matrix 313 has a porosity of about 30-80%. Or in some embodiments, the porous matrix 313 has a porosity of about 50-70%. Or, in a specific embodiment, the porous matrix 313 has a porosity of 65%.
  • the pore size of the micropores is between 10 and 2000 ⁇ m. In some other embodiments, the pore size of the micropores in the porous matrix 313 is between 200 and 800 ⁇ m. In this embodiment, for example, as shown in FIG. 5 , the average pore size of the micropores in the porous matrix 313 is between 500 and 1000 ⁇ m. In some other embodiments, the pore size of the micropores of the porous material of the porous matrix 313 is between 20 and 500 ⁇ m; and in this embodiment, the average pore size of the micropores in the porous matrix 313 is between 20 and 100 ⁇ m. In some other embodiments, the average pore size of the micropores in the porous matrix 313 is between 30 and 80 ⁇ m.
  • the porous matrix 313 is formed by mixing ceramic raw materials, pore-forming agents and other material components with organic additives into a moldable slurry, and then injecting it into a mold to form a tubular green embryo and then sintering it. During the sintering process, the pore-forming agent decomposes or volatilizes to define the internal micropores of the tubular porous matrix 313.
  • the porous matrix 313 is formed by mixing a decomposable ceramic material precursor with an organic additive, molding the mixture to form a green body, and then sintering the mixture.
  • the decomposable ceramic material precursor such as calcium carbonate and borax
  • the green body containing the ceramic material precursor shrinks during sintering, thereby forming a large number of micropores inside the porous matrix 313 formed by sintering.
  • the porous matrix 313 includes at least one of aluminum oxide, silicon oxide, boron oxide, calcium oxide, and zirconium oxide.
  • the apparent density of the porous matrix 313 is 1g/cm3 to 3g/cm3.
  • the term "apparent density” is a physics term, which refers to the ratio of the mass of the object being described to its apparent volume.
  • the above "apparent density” refers to the ratio of the mass of the tubular porous matrix 313 to the apparent volume of the tubular body.
  • the apparent density of the porous matrix 313 of the above porous alumina ceramic body with a porosity of 65% is approximately 1.43g/cm3.
  • the apparent density of the porous matrix 313 is 1.5 to 2 g/cm3.
  • the thermal conductivity of the material of the porous matrix 313 is between 1 and 25 W/m.K.
  • the thermal conductivity of glass is about 1 W/m.K
  • the thermal conductivity of alumina ceramic is about 20 W/m.K.
  • the cavity of the housing 31 is also filled with fillers for the porous matrix. 313 and the gap outside the heating coil 32 are filled, which is beneficial to improving heat utilization.
  • the filler may include inorganic glass glue, such as sodium silicate, aluminum silicate, etc.; or in some other embodiments, the filler may include at least one of glass powder, barium oxide powder, silicon dioxide powder, boron oxide powder, aluminum oxide powder, magnesium oxide powder, etc.; the initial melting point of the filler is not less than 500°C, and the thermal expansion coefficient is not less than 8ppm/°C, preferably 10-13ppm/°C.
  • Figure 6 shows a temperature field distribution diagram of a heater 30 in an embodiment detected by an infrared thermal imager FOTRIC616 during operation.
  • the length of the shell 31 made of 304 stainless steel is 15 mm
  • the outer diameter is 2.1 mm
  • the length of the conical tip is 2.5 mm
  • the length of the cavity of the shell 31 is 13 mm
  • the inner diameter is 1.8 mm
  • the material of the heating coil 32 is stainless steel, the number of turns is 9 turns, the length of the heating coil 32 is 9.0 ⁇ 0.5 mm
  • the outer diameter is 1.6 mm
  • the extension dimension of the wire material of the heating coil 32 along the axial direction is 0.8 mm and the extension dimension along the radial direction is 0.2 mm
  • the material of the porous matrix 313 is a ceramic mixed with porous aluminum oxide, silicon oxide and boron oxide
  • the outer diameter of the tubular matrix 31 is 1.4 mm
  • the inner diameter is 0.5 mm
  • the length is equal to the length of the heating coil 32
  • the high temperature zone (the region of 340 to 350° C.) is closer to the free front end 311 and has a length D1 of approximately 4.5 mm.
  • Figure 7 shows a comparison of the test results of the length of the high temperature zone when the heaters in the comparative example and the embodiment are heated at the same predetermined temperature of 350°C; wherein, in Figure 7, the heater of comparative example 1 does not contain a matrix, and the heating coil 32 is directly assembled into the housing 31; the heater of comparative example 2 uses a dense matrix of ceramics mixed with dense aluminum oxide, silicon oxide and boron oxide; the porous matrix 313 in the heater of embodiment 1 uses the same material as that of comparative example 2 and has a porosity of about 60%.
  • the length of the high temperature zone of the heater 30 of embodiment 1, comparative example 1 and comparative example 2 is monitored by infrared thermal imager FOTRIC616, and 10 samples are taken for each and the results are statistically analyzed. From the statistical results of FIG7 , the average length of the high temperature zone of the heater of comparative example 1 is 3.92 mm, and the consistency of the 10 samples is relatively different (corresponding to the bar graph of comparative example 1 in FIG7 ); the average length of the high temperature zone of the heater of comparative example 2 is 4.75 mm, and the consistency of the 10 samples is better than that of comparative example 1 (corresponding to the bar graph of comparative example 2 in FIG7 ); the average length of the high temperature zone of the heater 30 of embodiment 1 is 4.585 mm, which is higher than that of comparative example 1 and slightly lower than that of comparative example 2, and the consistency of the 10 samples is better than that of comparative example 1 (corresponding to the bar graph of embodiment 1 in FIG7 ). Therefore, when there is a porous matrix in the heating coil 32, 31
  • FIG8 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 225 seconds) 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, 380°C;
  • Time stage S2 (t1-t2 time, for example, about 5 seconds): from the first target temperature T1 to the second target temperature T2, for example, 350° C.;
  • Time stage S3 (t2-t3 time, for example, about 210s): the aerosol generating article 1000 is basically maintained at the second target temperature T2 and is 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.
  • FIG9 further shows the power consumption monitoring results of the heaters 30 of Comparative Example 1, Comparative Example 2 and Example 1 respectively, when heated for 225 seconds according to the curve shown in FIG8 under no-load (without the aerosol generating article 1000).
  • the average power consumption of the 10 samples heated by the heater without a substrate in Comparative Example 1 is 137.37 mWh, and the maximum power consumption difference between the 10 samples is 3.8 mWh;
  • the average power consumption of the 10 samples heated by the heater containing a dense substrate in Comparative Example 2 is 141.86 mWh, and the maximum power consumption difference between the 10 samples is 2.2 mWh;
  • the average power consumption of the 10 samples heated by the heater containing a porous substrate 313 of porous ceramic in Example 1 is 136.28 mWh, and the maximum power consumption difference between the 10 samples is 3.2 mWh. Therefore, when there is a dense substrate in the heating coil 32, more power consumption is required.
  • Figure 10 shows the temperature sampling results of the surface of the shell 31 of the heater 30 of Comparative Example 1, Comparative Example 2 and Example 1 at a distance of 11 mm from the free front end 311 during the heating process; wherein, the surface of the shell 31 at a distance of 11 mm from the free front end 311 is the position B1 in Figure 2, and specifically, the position B1 is the position of the injection molding flange 34 in the preparation of the heater 30.
  • the average temperature of the heater 30 of the 10 samples in Example 1 at the B1 position is 286.15°C, which is lower than the average temperature of the heater 30 of the 10 samples in Comparative Example 1 at the B1 position of 292.45°C and the average temperature of the heater 30 of the 10 samples in Comparative Example 2 at the B1 position of 292.15°C.
  • the temperature of the heater 30 at the B1 position in Example 1 is about 6°C lower than that of Comparative Example 1 and Comparative Example 2.
  • the surface of the flange 34 of the zirconia The temperature is about 105-110°C.
  • the span of the high temperature zone can be longer, the power consumption is relatively lower, and the temperature can be transferred to the flange 34 relatively less, which is beneficial to improving the temperature consistency of the heating area, reducing power consumption and heat transfer to the flange 34.
  • the power consumption of the heater 30 of comparative example 2 containing a dense matrix is increased by about 36 J compared with the heater 30 of comparative example 1 without a matrix; the energy consumption of the heater 30 containing a porous matrix 313 in embodiment 1 is reduced by about 26 J compared with comparative example 2.

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Abstract

L'invention concerne un dispositif de génération d'aérosol et un dispositif de chauffage (30) pour un dispositif de génération d'aérosol. Le dispositif de génération d'aérosol comprend le dispositif de chauffage (30) qui est conçu pour être inséré dans un produit de génération d'aérosol pour le chauffage. Le dispositif de chauffage (30) comprend : un boîtier (31) qui comprend une extrémité avant libre (311) et une extrémité arrière (312) disposées à l'opposé l'une de l'autre dans une direction longitudinale, et une cavité s'étendant entre l'extrémité avant libre (311) et l'extrémité arrière (312) ; un substrat poreux (313) qui s'étend dans la cavité ; et un serpentin de chauffage (32) qui est situé dans la cavité et est au moins partiellement disposé autour du substrat poreux (313). Dans le dispositif de génération d'aérosol, le serpentin de chauffage (32) du dispositif de chauffage est disposé autour du substrat poreux, ce qui permet d'augmenter la longueur d'une zone à haute température du dispositif de chauffage (30) et de réduire la consommation d'énergie.
PCT/CN2023/131537 2022-12-01 2023-11-14 Dispositif de génération d'aérosol et dispositif de chauffage pour dispositif de génération d'aérosol WO2024114367A1 (fr)

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CN202211531384.0A CN118120971A (zh) 2022-12-01 2022-12-01 气雾生成装置及用于气雾生成装置的加热器
CN202211531384.0 2022-12-01

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WO2024114367A1 true WO2024114367A1 (fr) 2024-06-06

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