WO2022253323A1 - Dispositif de génération d'aérosol, dispositif de chauffage pour celui-ci et procédé de préparation - Google Patents
Dispositif de génération d'aérosol, dispositif de chauffage pour celui-ci et procédé de préparation Download PDFInfo
- Publication number
- WO2022253323A1 WO2022253323A1 PCT/CN2022/096910 CN2022096910W WO2022253323A1 WO 2022253323 A1 WO2022253323 A1 WO 2022253323A1 CN 2022096910 W CN2022096910 W CN 2022096910W WO 2022253323 A1 WO2022253323 A1 WO 2022253323A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heating element
- heater
- housing
- aerosol
- generating device
- Prior art date
Links
- 239000000443 aerosol Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 109
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000002243 precursor Substances 0.000 claims abstract description 43
- 239000012212 insulator Substances 0.000 claims abstract description 38
- 230000008018 melting Effects 0.000 claims abstract description 24
- 238000002844 melting Methods 0.000 claims abstract description 24
- 238000007711 solidification Methods 0.000 claims abstract description 12
- 230000008023 solidification Effects 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000010292 electrical insulation Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010301 surface-oxidation reaction Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 description 11
- 229910001220 stainless steel Inorganic materials 0.000 description 11
- 241000208125 Nicotiana Species 0.000 description 10
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 10
- 239000000843 powder Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 229910052810 boron oxide Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 2
- -1 borosilicate Chemical compound 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 2
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 2
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 235000019505 tobacco product Nutrition 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 239000010965 430 stainless steel Substances 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000009499 Vanilla fragrans Nutrition 0.000 description 1
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 1
- 244000263375 Vanilla tahitensis Species 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910021484 silicon-nickel alloy Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
-
- 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
- A24F40/20—Devices using solid inhalable precursors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/022—Heaters specially adapted for heating gaseous material
Definitions
- the embodiments of the present application relate to the technical field of heat-not-burn smoking appliances, and in particular to an aerosol generating device, a heater for the aerosol generating device and a preparation method.
- Smoking articles eg, cigarettes, cigars, etc.
- Burn tobacco during use to produce tobacco smoke.
- Attempts have been made to replace these tobacco-burning products by making products that release compounds without burning them.
- Patent No. 202010054217.6 proposes to use a heater encapsulating a spiral heating wire in a metal outer casing to heat tobacco products to generate aerosols.
- the insulation between the spiral heating wire and the metal outer sleeve is usually achieved by filling the metal outer sleeve with inorganic insulating glue or inorganic powder. The porosity affects the transfer of heat between the heating wire and the outer sleeve.
- An embodiment of the present application provides an aerosol generating device configured to heat an aerosol generating product to generate an aerosol; including:
- a heater extending at least partially within the chamber and configured to heat the aerosol-generating article; the heater comprising:
- a housing with a hollow extending axially;
- An insulator formed by solidification or curing of molten precursor material within the hollow space for providing electrical insulation between the resistive heating element and the housing.
- the housing comprises a metal or alloy.
- the melting point of the precursor material forming the insulator is between 400°C and 1500°C.
- the melting point of the precursor material is lower than the melting point of the shell.
- the insulator comprises glaze or glass or silicon dioxide.
- said resistive heating element is configured in the form of a helical coil extending along said hollow axial direction;
- the cross-section of the conductor material of the helical coil is configured flat.
- the section of the wire material of the helical coil is configured such that the length extending in the axial direction of the helical coil is greater than the length extending in the radial direction.
- said insulator is configured to retain said resistive heating element within said hollow.
- the resistive heating element is encased within the insulation.
- the resistance heating element has a metal oxide layer formed by surface oxidation.
- the insulator comprises alumina or its precursors, silica or its precursors, aluminates, aluminosilicates, aluminum nitride, aluminum carbide, zirconia, silicon carbide, silicon boride , silicon nitride, titanium dioxide, titanium carbide, boron carbide, boron oxide, borosilicate, silicate, rare earth oxide, soda lime, barium titanate, lead zirconate titanate, aluminum titanate, barium ferrite, strontium ferrite, or at least one such inorganic material.
- Yet another embodiment of the present application also proposes a heater for an aerosol generating device, the heater comprising:
- a housing comprising metal or alloy; said housing is configured as a pin or needle and has a hollow extending axially;
- An insulator formed by solidification or curing of molten precursor material within the hollow space for providing electrical insulation between the resistive heating element and the housing.
- Yet another embodiment of the present application also proposes a method for preparing a heater for an aerosol generating device, comprising the following steps:
- Electrical insulation is provided between the housing and the resistive heating element by solidification or solidification of the molten precursor material within the hollow.
- the step of solidifying or solidifying the molten precursor material in the hollow comprises:
- the molten precursor material After dipping the resistive heating element into the molten precursor material, the molten precursor material is solidified by cooling.
- a metal oxide layer is formed on the surface of the resistance heating element.
- the resistance heating coil is heated by supplying power to the resistance heating element under air or an oxygen atmosphere, thereby forming a metal oxide layer on the surface of the resistance heating element.
- the metal oxide layer is formed on the surface of the resistance heating element by heating the resistance heating element in air or an oxygen atmosphere.
- the surface of the resistance heating element is sprayed or deposited or formed with an insulating material layer.
- the insulating material layer is a glaze layer.
- the insulator is formed by solidification after melting, and can completely penetrate into the gap or gap between the inner wall of the heater shell and the resistance heating element, so that they are basically completely insulated; and can improve mass production Consistency and yield of insulation in preparation.
- Fig. 1 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application
- Fig. 2 is a schematic cross-sectional view of an embodiment of the heater in Fig. 1;
- Fig. 3 is a structural schematic diagram of a viewing angle of the heater shell in Fig. 2;
- Fig. 4 is a structural schematic diagram of a viewing angle of the resistance heating element in Fig. 2;
- Fig. 5 is a schematic cross-sectional view of a viewing angle of the resistance heating coil in Fig. 4;
- Fig. 6 is a structural schematic diagram of a resistance heating element in another embodiment
- Fig. 7 is a schematic diagram of a method for preparing a heater according to an embodiment
- Figure 8 is a schematic illustration of the formation of a molten state precursor in the heater housing of one embodiment
- Figure 9 is a schematic diagram of a resistive heating element entering a molten state precursor, according to one embodiment
- Fig. 10 shows the temperature change curve of the heater of an embodiment in use
- Fig. 11 shows the temperature change curve of the heater in use in a comparative example
- Fig. 12 shows the temperature change curve of the heater in another comparative example during use.
- An embodiment of the present application proposes an aerosol generating device, the structure of which can be seen in Figure 1, including:
- a heater 30 extending at least partially within the chamber is inserted into the aerosol-generating article A for heating when the aerosol-generating article A is received in the chamber, thereby causing the aerosol-generating article A to release a plurality of volatile compounds, and these volatile compounds Sexual compounds are formed only by heat treatment;
- the electric core 10 is used for power supply;
- the circuit 20 is used to conduct current between the battery cell 10 and the heater 30 .
- the heater 30 is generally in the shape of a pin or a needle, which is advantageous for being inserted into the aerosol-generating article A; meanwhile, the heater 30 may have a length of about 12-19 millimeters, about 2 to 4 mm outer diameter size.
- the aerosol-generating product A 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 is suitable for electric heating and smoking after heating.
- the aerosol-generating product A preferably adopts a solid substrate, which may include one or more of powder, granules, shredded strips, strips or flakes of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; Alternatively, the solid matrix may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is heated.
- the heater 30 may generally include a resistive heating element, and an auxiliary substrate that assists in fixing or preparing the resistive heating element.
- the resistive heating element is in the shape or form of a helical coil.
- the resistive heating element is in the form of a conductive trace bonded to the substrate.
- the resistive heating element is in the shape of the substrate of the foil.
- Fig. 2 to Fig. 4 show a cross-section and a schematic view of some parts of the heater 30 in one embodiment, including:
- the shell 31 is configured as a pin or needle-like hollow 311, and the front end has a tapered tip to facilitate insertion into the aerosol generating product A, and the rear end has an opening to facilitate the assembly of various functional components inside it;
- the resistance heating element 32 is used to generate heat; specifically, the structure includes a helical resistance heating coil 320 configured to extend along a part of the axial direction of the casing 31, and first conductive wires respectively connected to the upper ends of the resistance heating coil 320 pin 321 , and a second conductive pin 322 connected to the lower end of the resistance heating coil 320 .
- the first conductive pin 321 and the second conductive pin 322 are used to power the resistance heating coil 320 .
- the first conductive pin 321 penetrates the resistance heating coil 320 from the upper end to the lower end thereof, thereby facilitating connection.
- the resistive heating coil 320 is fully assembled and held within the hollow 311 of the housing 31, and the resistive heating coil 320 and the housing 31 are thermally conductive to each other after assembly.
- the material of the resistance heating coil 320 is a metal material, a metal alloy, graphite, carbon, conductive ceramics, or a composite material of other ceramic materials and metal materials with appropriate resistance.
- suitable metal or alloy materials include 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, titanium alloy, iron-manganese At least one of aluminum-based alloy or stainless steel.
- the shell 31 is made of thermally conductive metal or alloy material, such as stainless steel.
- the resistance heating coil 320 and the inner wall of the hollow 311 of the housing 31 are in contact with each other to conduct heat, and at the same time, the housing 31 and the resistance heating coil 320 are insulated from each other.
- FIG. 5 shows a schematic cross-sectional view of the resistance heating coil 320 in FIG. 4 .
- the cross-sectional shape of the wire material of the resistance heating coil 320 is a wide or flat shape different from a conventional circle.
- the cross section of the wire material of the resistance heating coil 320 has a dimension extending longitudinally that is greater than a dimension extending radially perpendicular to the longitudinal direction, so that the resistance heating coil 320 has a flattened rectangular shape.
- the resistive heating coil 320 constructed above is completely or at least flattened in form of the wire material compared to conventional helical heating coils formed from circular cross-section wires. Consequently, the wire material extends to a lesser extent in the radial direction. By this measure, energy losses in the resistance heating coil 320 can be reduced. In particular, heat transfer can be facilitated.
- the first conductive pin 321 and the second conductive pin 322 are made of a material with a low temperature coefficient of resistance.
- the resistance heating coil 320 is made of a material with a relatively large positive or negative resistance temperature coefficient, and the circuit 20 can obtain the temperature of the resistance heating coil 320 by detecting the resistance temperature coefficient of the resistance heating coil 320 in use.
- the first conductive pin 321 and the second conductive pin 322 are respectively made of galvanic couple materials such as nickel, nickel-chromium alloy, nickel-silicon alloy, nickel-chromium-cold copper, constant bronze, and iron-chromium alloy. prepared from two different materials. Further, a thermocouple that can be used to detect the temperature of the resistance heating coil 320 is formed between the first conductive pin 321 and the second conductive pin 322, thereby obtaining the temperature of the resistance heating coil 320.
- the resistance heating coil 320 may also be made of a conventional wire material with a circular cross section.
- the resistance heating element 32a shown in Fig. 6 adopt the resistance heating coil 320a of the helical coil that the circular wire material is prepared or constructed; Pin 322a is used for power supply or temperature measurement.
- the hollow 311 of the casing 31 is filled or encapsulated with an insulator 33 , and the insulator 33 provides insulation between the resistance heating coil 320 / 320 a and the casing 31 . At the same time, the insulator 33 also provides retention for the resistance heating coil 320/320a.
- the resistive heating coil 320 / 320a is substantially completely encased or buried within the insulator 33 .
- Yet another embodiment of the present application also proposes a method for preparing the above heater 30, as shown in FIG. 7, including the following steps:
- the shell 31 is a pin or needle with an axial hollow 311, and the material is preferably metal or alloy such as grade 430 stainless steel (SS430);
- step S40 immerse the resistance heating coil 320/320a formed with the surface oxide layer in step S30 into the molten precursor 33a in step S20, as shown by the arrow in FIG. 33a is cooled and solidified or solidified from a molten state to form an insulator 33, and then the heater 30 shown in FIG. 2 can be produced.
- the surface oxide layer formed by the surface oxidation of the resistance heating coil 320/320a made of metal or alloy in the above step S30 has a thickness of about 10-100 nm.
- the resistance heating coil 320/320a is supplied with power to make it dry-heat to 300-500° C., and the time is about 10 minutes.
- step S30 adopts the method of heating the resistance heating coil 320/320a under air or an oxygen atmosphere, so that the surface of the resistance heating coil 320/320a is thermally oxidized to form a metal oxide layer.
- step S30 may also include:
- S31 further form an insulating material layer on the surface of the resistance heating coil 320/320a by means of spraying, deposition, sintering, etc., such as glaze, ceramic layer and the like. It is beneficial to further improve the insulation effect.
- the precursor 33a of the above insulator 33 is preferably made of a material with a melting point lower than that of the shell 31 .
- the precursor 33 a of the insulator 33 is prepared from an insulating material with a lower melting point.
- insulator 33 is glass or silica or glaze. Then, during the preparation process, after pouring their powder precursors 33a into the shell 31, they can be melted by heating to 650°C.
- the precursor 33a of the insulator 33 can also use bismuth oxide with a melting point of about 860°C, or boron oxide with a melting point of about 450°C, or boron and silicon oxide with a melting point of about 680°C. , Aluminum oxide mixed glass.
- the precursor 33a can have more choices.
- the precursor 33a of the insulator 33 preferably adopts inorganic oxides, carbides, nitrides or inorganic salts with a melting point lower than 1500°C; Its precursors, aluminates, aluminosilicates, aluminum nitride, aluminum carbide, zirconia, silicon carbide, silicon boride, silicon nitride, titanium dioxide, titanium carbide, boron carbide, boron oxide, borosilicate, Silicates, rare earth oxides, soda lime, barium titanate, lead zirconate titanate, aluminum titanate, barium ferrite, strontium ferrite, or at least one of such inorganic materials are relatively readily available and Prepared.
- the precursor 33 a of the insulator 33 is preferably made of, doped or added with a material with high thermal conductivity, such as silicon carbide; so that the heat of the resistance heating coil 320 / 320 a can be transferred to the shell 31 faster.
- the precursor 33a of the insulator 33 has a melting point higher than 400°C to avoid melting of the insulator 33 when the heater 30 heats the aerosol-generating article A at a temperature of approximately 400°C.
- the melting point of the precursor 33a of the insulator 33 is about 600-1500°C; preferably, it can also be at 600-800°C.
- the opening of the hollow 311 of the casing 31 needs to be sealed or blocked to avoid powder dropping or glue leakage from the opening of the heater during use. and other conditions; through the heater 30 prepared by the above embodiment, the insulator 33 is obtained by melting and solidifying and is combined inside the lumen of the shell 31, there is no problem such as powder dropping or glue leakage, and the opening of the hollow 311 of the shell 31 can be Keep open or not closed.
- the insulator 33 is formed by solidification in a molten state.
- the precursor 33a can completely penetrate into the gap or gap between the inner wall of the shell 31 and the resistance heating coil 320/320a, and the insulator 33 is basically safe.
- the inner wall of the housing 31 and the resistance heating coil 320/320a are kept in a non-contact state, so that they are basically completely insulated; the above preparation steps can improve the consistency and yield of insulation in mass production.
- melting phase transition can basically completely eliminate internal gaps or pores, which is beneficial for increasing the heat capacity of the heater 30 and reducing temperature fluctuations in the heating process. At the same time, it can also help to improve the structural strength inside the heater and reduce powder shedding.
- FIG. 10 shows the temperature change curve during use of the heater prepared by using glass glaze as the precursor 33a after melting at 800° C. and then cooling in the SS430 stainless steel shell 31 .
- Fig. 11 shows the temperature change curve of the heater in a comparative example during use. The heater is formed by filling the SS430 stainless steel shell 31 with conventional alumina ceramic slurry as an insulator, and then sintering at a temperature of 800°C.
- FIG. 12 shows the temperature change curve of the heater in another comparative example during use. The heater is prepared by filling diamond powder in the SS430 stainless steel shell 31 as an insulator. The above curves in use are all controlled by high-precision PID software to control the power of the power supply, and then sample the fluctuation of its actual working temperature.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Resistance Heating (AREA)
Abstract
La présente demande concerne un dispositif de génération d'aérosol, un dispositif de chauffage pour celui-ci et un procédé de préparation. Le dispositif de génération d'aérosol comprend : une chambre pour recevoir un produit de génération d'aérosol ; et le dispositif de chauffage qui s'étend au moins partiellement dans la chambre et est utilisé pour chauffer le produit de génération d'aérosol. Le dispositif de chauffage comprend : un boîtier ayant une partie creuse s'étendant axialement ; un élément chauffant à résistance situé dans la partie creuse ; et un isolant formé par solidification ou durcissement d'un matériau précurseur fondu dans la partie creuse et utilisé pour fournir une isolation électrique entre l'élément chauffant à résistance et le boîtier. Selon le dispositif de génération d'aérosol, l'isolant est formé par solidification après fusion et peut pénétrer entièrement dans une fente ou un espace entre la paroi intérieure du boîtier du dispositif de chauffage et l'élément chauffant par résistance, de telle sorte que le boîtier et l'élément chauffant à résistance sont complètement isolés ; et la présente invention permet d'améliorer l'uniformité de l'isolation et le rendement en production de masse.
Priority Applications (1)
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EP22815362.3A EP4349192A1 (fr) | 2021-06-04 | 2022-06-02 | Dispositif de génération d'aérosol, dispositif de chauffage pour celui-ci et procédé de préparation |
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CN202110626465.8 | 2021-06-04 | ||
CN202110626465.8A CN115428987A (zh) | 2021-06-04 | 2021-06-04 | 气雾生成装置、用于气雾生成装置的加热器及制备方法 |
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WO2022253323A1 true WO2022253323A1 (fr) | 2022-12-08 |
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PCT/CN2022/096910 WO2022253323A1 (fr) | 2021-06-04 | 2022-06-02 | Dispositif de génération d'aérosol, dispositif de chauffage pour celui-ci et procédé de préparation |
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EP (1) | EP4349192A1 (fr) |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034330A (en) * | 1974-09-19 | 1977-07-05 | Tokyo Shibaura Electric Co., Ltd. | Sheath heater |
US4129774A (en) * | 1975-08-28 | 1978-12-12 | Hitachi Heating Appliances Co., Ltd. | Filling materials for heating elements |
JP2007059061A (ja) * | 2005-07-29 | 2007-03-08 | Kanken Techno Co Ltd | 電気ヒータおよび該ヒータを用いた半導体排ガス処理装置 |
CN210630648U (zh) * | 2019-07-12 | 2020-05-29 | 深圳市新宜康科技股份有限公司 | 基于平衡强度与发热功率的加热不燃烧器件 |
CN111657557A (zh) * | 2020-05-19 | 2020-09-15 | 深圳市华诚达精密工业有限公司 | 加热装置及其制造方法、加热不燃烧烟具 |
-
2021
- 2021-06-04 CN CN202110626465.8A patent/CN115428987A/zh active Pending
-
2022
- 2022-06-02 WO PCT/CN2022/096910 patent/WO2022253323A1/fr active Application Filing
- 2022-06-02 EP EP22815362.3A patent/EP4349192A1/fr active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034330A (en) * | 1974-09-19 | 1977-07-05 | Tokyo Shibaura Electric Co., Ltd. | Sheath heater |
US4129774A (en) * | 1975-08-28 | 1978-12-12 | Hitachi Heating Appliances Co., Ltd. | Filling materials for heating elements |
JP2007059061A (ja) * | 2005-07-29 | 2007-03-08 | Kanken Techno Co Ltd | 電気ヒータおよび該ヒータを用いた半導体排ガス処理装置 |
CN210630648U (zh) * | 2019-07-12 | 2020-05-29 | 深圳市新宜康科技股份有限公司 | 基于平衡强度与发热功率的加热不燃烧器件 |
CN111657557A (zh) * | 2020-05-19 | 2020-09-15 | 深圳市华诚达精密工业有限公司 | 加热装置及其制造方法、加热不燃烧烟具 |
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CN115428987A (zh) | 2022-12-06 |
EP4349192A1 (fr) | 2024-04-10 |
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