CN117461887A - Aerosol generating device, control method thereof and aerosol generating method - Google Patents
Aerosol generating device, control method thereof and aerosol generating method Download PDFInfo
- Publication number
- CN117461887A CN117461887A CN202210872754.0A CN202210872754A CN117461887A CN 117461887 A CN117461887 A CN 117461887A CN 202210872754 A CN202210872754 A CN 202210872754A CN 117461887 A CN117461887 A CN 117461887A
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- Prior art keywords
- heating
- aerosol
- temperature
- infrared electrothermal
- generating device
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- Pending
Links
- 239000000443 aerosol Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 197
- 239000000758 substrate Substances 0.000 claims abstract description 81
- 238000000576 coating method Methods 0.000 claims description 218
- 239000011248 coating agent Substances 0.000 claims description 208
- 230000004913 activation Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- ZDJFDFNNEAPGOP-UHFFFAOYSA-N dimethyl tetradecanedioate Chemical compound COC(=O)CCCCCCCCCCCCC(=O)OC ZDJFDFNNEAPGOP-UHFFFAOYSA-N 0.000 description 2
- -1 glycerol mono- Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010016334 Feeling hot Diseases 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- IZMOTZDBVPMOFE-UHFFFAOYSA-N dimethyl dodecanedioate Chemical compound COC(=O)CCCCCCCCCCC(=O)OC IZMOTZDBVPMOFE-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel 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
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- A24F40/20—Devices using solid 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
- A24F40/50—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
Abstract
The application provides an aerosol-generating device, a control method thereof, and a method of generating an aerosol, the control method comprising: during a first portion of the control period of the heater, the control power supply supplies heating power only to the first heating zone so that the temperature of the first heating zone rises from the initial temperature to a first preset target temperature; during the remainder of the control period of the heater, controlling the power supply to simultaneously provide heating power to the first heating zone and the second heating zone; the duration of the first portion period is between 10s and 30s. The present application initiates heating by controlling the first heating zone and the second heating zone to not initiate heating during a first portion of a control period of the heater; controlling the first heating zone and the second heating zone to simultaneously initiate heating during the remaining portion; the preheating time of aerosol forming substrate is reduced, the problem that a user feels hot when sucking aerosol is avoided, and the sucking and using experience of the user is improved.
Description
Technical Field
The present disclosure relates to the field of electronic atomization technology, and in particular, to an aerosol generating device, a control method thereof, and a method for generating aerosol.
Background
The existing aerosol generating device is mainly characterized in that a far infrared coating and a conductive coating are coated on the outer surface of a substrate, and the far infrared coating after being electrified emits far infrared rays to penetrate through the substrate and heat an aerosol forming substrate in the substrate; as far infrared rays have stronger penetrability, the far infrared rays can penetrate through the periphery of the aerosol-forming substrate and enter the interior, so that the aerosol-forming substrate is heated uniformly.
The aerosol-generating device has a problem in that the preheating time of the aerosol-forming substrate is long, and a user feels a hot mouth while sucking the aerosol, which affects the user's use experience.
Disclosure of Invention
The application provides an aerosol generating device, a control method thereof and a method for generating aerosol, and aims to solve the problems of long preheating time and sucking hot nozzle existing in the existing aerosol generating device.
In one aspect the present application provides an aerosol-generating device configured to heat an aerosol-forming substrate to generate an aerosol; the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate; the aerosol-generating device comprises:
a power supply;
a heater comprising a first heating zone for heating the first portion of aerosol-forming substrate and a second heating zone for heating the second portion of aerosol-forming substrate;
A controller configured to:
controlling the power supply to supply heating power only to the first heating region during a first portion of a control period of the heater so that a temperature of the first heating region rises from an initial temperature to a first preset target temperature;
controlling the power supply to simultaneously provide heating power to the first heating zone and the second heating zone during the remainder of the control period of the heater;
wherein the duration of the first portion period is between 10s and 30s.
Another aspect of the present application provides a method of controlling an aerosol-generating device configured to heat an aerosol-forming substrate to generate an aerosol; the aerosol-generating device comprises a power supply, a first heating zone for heating the first portion of aerosol-forming substrate, and a second heating zone for heating the second portion of aerosol-forming substrate; the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate;
the control method comprises the following steps:
controlling the power supply to supply heating power only to the first heating region during a first portion of a control period of the heater so that a temperature of the first heating region rises from an initial temperature to a first preset target temperature;
Controlling the power supply to simultaneously provide heating power to the first heating zone and the second heating zone during the remainder of the control period of the heater;
wherein the duration of the first portion period is between 10s and 30s.
In another aspect the present application also provides a method of generating an aerosol from an aerosol-generating substrate using an aerosol-generating device,
the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate; the aerosol-generating device comprises a first heating zone for heating the first portion of aerosol-forming substrate, and a second heating zone for heating the second portion of aerosol-forming substrate;
the method comprises the following steps:
during a first portion of a control period of the heater, the first heating zone initiates heating and rises from an initial temperature to a first preset target temperature; and the second heating zone does not initiate heating;
during the remainder of the control period of the heater, the first heating zone and the second heating zone simultaneously initiate heating;
wherein the duration of the first portion period is between 10s and 30s.
The aerosol-generating device, the control method thereof and the aerosol-generating method provided by the application are characterized in that during the first part of the control period of the heater, only the first heating area is controlled to start heating, and the second heating area is not controlled to start heating; controlling the first heating zone and the second heating zone to simultaneously initiate heating during the remaining portion; the preheating time of aerosol forming substrates is reduced, the problem that a user feels hot when sucking aerosol is avoided, and the sucking and using experience of the user is improved.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures are not to scale, unless expressly stated otherwise.
Fig. 1 is a schematic view of an aerosol-generating device provided in an embodiment of the present application;
fig. 2 is an exploded schematic view of an aerosol-generating device provided by an embodiment of the present application;
FIG. 3 is a schematic diagram of a heater provided in an embodiment of the present application;
FIG. 4 is a schematic illustration of an infrared electrothermal coating in a heater provided in an embodiment of the present application after deployment;
FIG. 5 is a schematic view of a connection electrode provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of another heater provided in an embodiment of the present application;
FIG. 7 is a schematic illustration of an infrared electrothermal coating in another heater provided in an embodiment of the present application after deployment;
FIG. 8 is a schematic diagram of a control curve of a heater provided in an embodiment of the present application;
fig. 9 is a schematic diagram of an actual temperature profile of a heater provided in an embodiment of the present application.
Detailed Description
In order to facilitate an understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application in this description is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
Fig. 1-2 illustrate an aerosol-generating device 100 provided in an embodiment of the present application, comprising a housing assembly 6 and a heater 11. The heater 11 is provided within the housing assembly 6. The heater 11 may radiate infrared radiation to heat the aerosol-forming substrate to produce a smokable aerosol.
The housing assembly 6 includes a housing 61, a fixing case 62, a base and a bottom cover 64, wherein the fixing case 62 and the base are both fixed in the housing 61, the base is used for fixing the heater 11, the base is disposed in the fixing case 62, and the bottom cover 64 is disposed at a distal end of the housing 61 and covers the housing 61. The stationary case 62 is provided with an insertion opening through which the aerosol-forming substrate is removably received or inserted in the heater 11.
The base includes cup joints the base 15 in the upper end of heater 11 and cup joints the base 13 in the lower extreme of heater 11, in fixed shell 62 is all located to base 15 and base 13, the bottom 64 epirelief is equipped with intake pipe 641, the one end that base 13 deviates from base 15 is connected with intake pipe 641, base 15, heater 11, base 13 and intake pipe 641 are coaxial to be set up, and seal through the sealing member between heater 11 and base 15, the base 13, base 13 also seals with intake pipe 641, intake pipe 641 and external air intercommunication can smoothly admit air when being convenient for the user to suck.
The aerosol-generating device 100 further comprises a circuit board 3 and a battery cell 7. The fixed shell 62 includes preceding shell 621 and backshell 622, preceding shell 621 and backshell 622 fixed connection, and circuit board 3 and electric core 7 all set up in fixed shell 62, and electric core 7 is connected with circuit board 3 electricity, and button 4 is protruding to be established on shell 61, through pressing button 4, can realize the circular telegram or the outage to heater 11. The circuit board 3 is further connected with a charging interface 31, the charging interface 31 is exposed on the bottom cover 64, and a user can charge or upgrade the aerosol-generating device 100 through the charging interface 31 to ensure continuous use of the aerosol-generating device 100.
The aerosol-generating device 100 further comprises a heat insulating tube 17, the heat insulating tube 17 being disposed within the stationary housing 62, the heat insulating tube 17 being disposed at the periphery of the heater 11, the heat insulating tube 17 being adapted to avoid a significant amount of heat being transferred to the housing 61 to cause the user to feel scalding his hands. The insulating tube comprises an insulating material which may be a heat insulating gel, aerogel blanket, asbestos, aluminum silicate, calcium silicate, diatomaceous earth, zirconia, or the like. The heat insulating pipe may be a vacuum heat insulating pipe. An infrared reflective coating may be formed in the heat insulating pipe 17 to reflect infrared rays radiated from the heater 11 toward the aerosol-forming substrate, thereby improving heating efficiency.
The aerosol-generating device 100 further comprises a temperature sensor 2, e.g. an NTC temperature sensor, for detecting the real-time temperature of the heater 11 and transmitting the detected real-time temperature to the circuit board 3, the circuit board 3 adjusting the magnitude of the current flowing through the heater 11 in dependence of the real-time temperature.
Fig. 3 to 4 are diagrams illustrating a heater according to an embodiment of the present application, the heater 11 includes:
the substrate 110 may be made of a high temperature resistant transparent material such as quartz glass, ceramic or mica, or may be made of other materials having high infrared transmittance, for example: the high temperature resistant material having an infrared transmittance of 95% or more is not particularly limited herein.
The base 110 has a substantially tubular shape, and preferably has a circular tubular shape. The hollow interior of the substrate 110 defines or forms a chamber that receives an aerosol-forming substrate. The inner diameter of the base 110 is between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm.
An aerosol-forming substrate is a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. The aerosol-forming substrate may be solid or liquid or comprise solid and liquid components. The aerosol-forming substrate may be adsorbed, coated, impregnated or otherwise loaded onto a carrier or support. The aerosol-forming substrate may conveniently be part of an aerosol-generating article.
The aerosol-forming substrate may comprise nicotine. The aerosol-forming substrate may comprise tobacco, for example may comprise a tobacco-containing material comprising volatile tobacco flavour compounds which are released from the aerosol-forming substrate when heated. The aerosol-forming substrate may comprise at least one aerosol-forming agent, which may be any suitable known compound or mixture of compounds that, in use, facilitates the formation of a dense and stable aerosol and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating system. Suitable aerosol formers are well known in the art and include, but are not limited to: polyols, such as triethylene glycol, 1, 3-butanediol and glycerol; esters of polyols, such as glycerol mono-, di-or triacetate; and fatty acid esters of mono-, di-or polycarboxylic acids, such as dimethyldodecanedioate and dimethyltetradecanedioate.
An infrared electrothermal coating 111 is formed on the surface of the substrate 110. The infrared electrothermal coating 111 may be formed on the outer surface of the base 110 or may be formed on the inner surface of the base 110.
The infrared electrothermal coating 111 receives electric power to generate heat, and then radiates infrared rays with a certain wavelength, for example: far infrared rays of 8-15 μm. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-forming substrate, the energy of the infrared light is readily absorbed by the aerosol-forming substrate. In this example, the wavelength of the infrared ray is not limited, and may be an infrared ray of 0.75 μm to 1000 μm, preferably a far infrared ray of 1.5 μm to 400 μm.
In this example, the infrared electrothermal coating 111 is formed on the outer surface of the substrate 110, and the infrared electrothermal coating 111 includes two infrared electrothermal coatings disposed at intervals, which are shown as infrared electrothermal coating 111a and infrared electrothermal coating 111 b. Wherein the infrared electrothermal coating 111a is closer to the mouth end of the aerosol-generating device 100 than the infrared electrothermal coating 111 b.
The infrared electrothermal coating 111a is arranged at the upper end of the substrate 110 with a spacing distance of 0.2 mm-1 mm, which is beneficial to manufacturing production. The distance between the infrared electrothermal coating 111a and the infrared electrothermal coating 111b is 0.2 mm-1 mm. The infrared electrothermal coating 111b is also spaced from the lower end of the substrate 110 by a distance of 1 mm-4 mm, which is advantageous for the arrangement of the conductive electrode and prevents the lower end of the substrate 110 from being too high in temperature. The upper end of the base 110 is located downstream of the lower end of the base 110 in terms of the flow direction of the aerosol. The infrared electrothermal coating 111a and the infrared electrothermal coating 111b may have the same axial extension length or different axial extension lengths.
The conductive elements include conductive electrodes 112a, 112b, 112c, 112d and 112e disposed on the surface of the substrate 110 at intervals from each other.
The conductive electrode 112a includes a coupling portion 112a1 extending in the circumferential direction of the base 110 and a conductive portion 112a2 extending axially from the coupling portion 112a1 toward the upper end of the base 110. The coupling portion 112a1 is arc-shaped, the coupling portion 112a1 and the infrared electrothermal coating 111b are arranged at intervals, and the coupling portion 112a1 is arranged between the infrared electrothermal coating 111b and the lower end of the substrate 110; wires may be soldered to the coupling portion 112a1 to form an electrical connection with a power source external to the heater 11, such as the battery cell 7 or a voltage converted by the battery cell 7, or may be electrically connected with the power source through other electrical connectors. The conductive part 112a2 is in a strip shape, the axially extending length is longer than that of the infrared electrothermal coating 111b, and the upper end of the conductive part 112a2 is flush with the upper end of the infrared electrothermal coating 111 b; the conductive portion 112a2 is held in contact with the infrared electrothermal coating 111b to form an electrical connection.
The conductive electrode 112b has a bar shape, and its axially extending length is the same as that of the infrared electrothermal coating 111 a. The conductive electrode 112b is held in contact with the infrared electrothermal coating 111a to form an electrical connection.
The conductive electrode 112c is similar in structure to the conductive electrode 112 a. The coupling portion 112c1 of the conductive electrode 112c is disposed between the infrared electrothermal coating 111b and the lower end of the substrate 110, and the conductive portion 112c2 is in a strip shape, but its axially extending length is greater than the sum of the axially extending lengths of the infrared electrothermal coating 111a and the infrared electrothermal coating 111b, and the upper end of the conductive portion 112c2 is flush with the upper end of the infrared electrothermal coating 111 a. The conductive portion 112c2 is in contact with both the infrared electrothermal coating 111a and the infrared electrothermal coating 111b to form an electrical connection.
The connection electrode 112d and the connection electrode e are each in a bar shape and are disposed in the infrared electrothermal coating 111 b. The connection electrode 112d and the connection electrode e have the same length extending in the axial direction as the infrared electrothermal coating 111 b.
The connection electrode 112d is disposed between the conductive electrode 112a and the conductive electrode 112 c. The connection electrode 112d separates the infrared electrothermal coating between the conductive electrode 112a and the conductive electrode 112c into two sub-infrared electrothermal coatings (shown as B1 and B2 in fig. 4) connected in series between the conductive electrode 112a and the conductive electrode 112c, and the sub-infrared electrothermal coatings B1 and B2 are distributed along the circumferential direction of the substrate 110; the equivalent resistance of the sub-infrared electrothermal coating B1 and the equivalent resistance of the sub-infrared electrothermal coating B2 can be the same or different.
The connection electrode 112e is also disposed between the conductive electrode 112a and the conductive electrode 112 c. The connection electrode 112e separates the infrared electrothermal coating between the conductive electrode 112a and the conductive electrode 112c into two sub-infrared electrothermal coatings (shown as B3 and B4 in fig. 4) connected in series between the conductive electrode 112a and the conductive electrode 112c, and the sub-infrared electrothermal coatings B3 and B4 are distributed along the circumferential direction of the substrate 110; the equivalent resistance of the sub-infrared electrothermal coating B3 and the equivalent resistance of the sub-infrared electrothermal coating B4 can be the same or different.
By providing the connection electrode 112d and the connection electrode 112e, the overall resistance value of the infrared electrothermal coating 111b can be reduced.
It should be noted that, if necessary, a plurality of connection electrodes 112d and/or connection electrodes 112e may be disposed between the conductive electrodes 112a and 112c to divide the infrared electrothermal coating into a plurality of sub-infrared electrothermal coatings connected in series between the conductive electrodes 112a and 112 c; for example: the 2 connection electrodes 112d are divided into 3 sub-infrared electrothermal coatings connected in series between the conductive electrode 112a and the conductive electrode 112c, and the equivalent resistances of the 3 sub-infrared electrothermal coatings may all be the same or all be different, or the equivalent resistances of the 2 sub-infrared electrothermal coatings are the same.
It should be noted that, as needed, a plurality of connection electrodes 112d and/or connection electrodes 112e may be disposed between the conductive electrodes 112b and 112c to reduce the overall resistance of the infrared electrothermal coating 111 a.
The conductive electrode 112a, the conductive electrode 112b, the conductive electrode 112c, the connection electrode 112d, and the connection electrode 112e preferably employ a continuous conductive coating, and the conductive coating may be a metal coating, and the metal coating may include silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or a metal alloy material as described above. The widths of the connection electrode 112d and the connection electrode 112e are 0.5mm to 3mm; or 0.5mm to 2.5mm; in a specific example, the thickness may be 1mm or 2mm.
In other examples, the connection electrode 112d and the connection electrode 112e may also employ a discontinuous conductive coating, such as the conductive coating having a mesh as shown in fig. 5.
In the process of manufacturing the heater 11, the connection electrode 112d and/or the connection electrode 112e may be disposed between the substrate 110 and the infrared electrothermal coating 111b along the direction perpendicular to the surface of the substrate 110; an infrared electrothermal coating 111b may also be provided between the base 110 and the connection electrode. The conductive portion 112a2 of the conductive electrode 112a and the conductive portion 112c2 of the conductive electrode 112c may be provided as such.
By the conductive element arrangement in fig. 3, the infrared electrothermal coating 111a and the infrared electrothermal coating 111b are independently controllable. Specifically, the power supply may be controlled to provide heating power to the infrared electrothermal coating 111a and/or the infrared electrothermal coating 111 b; for example, the power supply is controlled to provide heating power to the infrared electrothermal coating 111a to heat the upper half of the aerosol-generating article (the portion corresponding to the region of the infrared electrothermal coating 111 a); the power supply is then controlled to provide heating power to the infrared electrothermal coating 111b to heat the lower half of the aerosol-generating article (the portion corresponding to the region of the infrared electrothermal coating 111 b). Vice versa.
Alternatively, the power supply is controlled to provide heating power to the infrared electrothermal coating 111a to heat the upper half of the aerosol-generating article; the power supply is then controlled to simultaneously provide heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b to heat the entire aerosol-generating article.
Alternatively, the power supply is controlled to provide heating power to the infrared electrothermal coating 111b to heat the lower half of the aerosol-generating article; the power supply is then controlled to simultaneously provide heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b to heat the entire aerosol-generating article.
When the infrared electrothermal coating 111a is controlled to be heated, for example, the conductive electrode 112b is electrically connected to the positive electrode of the power supply, and the coupling portion 112c1 is electrically connected to the negative electrode of the power supply; thus, the current flows from the conductive electrode 112b, passes through the sub-infrared electrothermal coating A1 or the sub-infrared electrothermal coating A2 along the circumferential direction of the base 110, and then flows out from the conductive portion 112c 2.
When the infrared electrothermal coating 111B is controlled to be heated, for example, the coupling portion 112a1 is electrically connected to the positive electrode of the battery cell 7, the coupling portion 112c1 is electrically connected to the negative electrode of the battery cell 7, and current flows in from the conductive portion 112a2, sequentially passes through the infrared electrothermal coating B1 and the infrared electrothermal coating B2, sequentially passes through the infrared electrothermal coating B4 and the infrared electrothermal coating B3, and then flows out from the conductive portion 112c 2. The connection electrode 112d and the connection electrode 112e are not connected to a power source or a circuit outside the heater 11, i.e., the connection electrode 112d and the connection electrode 112e are suspended, and current cannot directly flow in from the connection electrode 112c and then flow out from the conductive portion 112b2 or the conductive portion 112a 2. The presence of the connection electrode 112d and the connection electrode 112e can reduce the overall resistance of the infrared electrothermal coating 111 b.
Referring again to fig. 3, the infrared electrothermal coating 111a is provided with a mark 113, and the mark 113 is used for positioning when the temperature sensor 2 is assembled. The temperature sensor 2 detects a real-time temperature of the region of the infrared electrothermal coating 111a and transmits the detected real-time temperature to the circuit board 3, and the circuit board 3 can control the temperature of the infrared electrothermal coating 111a and/or the infrared electrothermal coating 111b according to the real-time temperature (described below).
In the embodiments in which the heater 11 shown in fig. 3 to 5 has various variations, for example: it is also possible that the conductive electrode 112c is replaced with two electrodes similar to the conductive electrode 112a and the conductive electrode 112 b; alternatively, the conductive electrode 112a, the conductive electrode 112b and the conductive electrode 112c all adopt ring electrode structures, so that the infrared electrothermal coating 111 is divided into an upper infrared electrothermal coating and a lower infrared electrothermal coating, and one or more connection electrodes with ring structures can be arranged on the lower infrared electrothermal coating, which is also feasible; alternatively, it is also possible that the conductive electrode 112a, the conductive electrode 112b, and the conductive electrode 112c each have a spiral electrode structure, and the connection electrode has a spiral structure.
Fig. 6-7 illustrate another heater provided by embodiments of the present application.
Unlike the examples of fig. 3-4, the conductive portion 112a2 of the conductive electrode 112a has an axially extending length that is greater than the sum of the axially extending lengths of the infrared electrothermal coating 111a and the infrared electrothermal coating 111b, and the upper end of the conductive portion 112c2 is flush with the upper end of the infrared electrothermal coating 111 a. The conductive electrode 112b and the conductive electrode 112d are each disposed between the conductive portion 112a2 of the conductive electrode 112a and the conductive portion 112c2 of the conductive electrode 112c, and the conductive electrode 112b and the conductive electrode 112d are each disposed in the infrared electrothermal coating 111a region.
Unlike the examples of fig. 3-4, infrared electrothermal coating 111a may be independently controllable, while infrared electrothermal coating 111b may not be independently controllable.
When controlling the heater 11 to heat, firstly, a control power supply supplies heating power to the infrared electrothermal coating 111a through the conductive electrode 112b and the conductive electrode 112 d; then, the power supply is controlled to simultaneously supply heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b through the conductive electrode 112a and the conductive electrode 112 c.
When the conductive electrode 112b and the conductive electrode 112d are energized, the conductive portion (the conductive portion 112a2 of the conductive electrode 112a and the conductive portion 112c2 of the conductive electrode 112 c) between the conductive electrode 112b and the conductive electrode 112d is not energized, and the conductive portion is equivalent to the connection electrode in the examples of fig. 3-4, so that the overall resistance value of the infrared electrothermal coating 111a is reduced, the infrared electrothermal coating 111a is quickly heated, the upper half of the aerosol-generating article can be quickly heated, and the purpose of quickly generating aerosol is achieved.
When the conductive electrode 112a and the conductive electrode 112c are energized, the conductive electrode 112b and the conductive electrode 112d between the conductive electrode 112a and the conductive electrode 112c are not energized, which is also equivalent to the connection electrode in the examples of fig. 3 to 4, thereby reducing the overall resistance value of the infrared electrothermal coating 111 a. At this time, since the infrared electrothermal coating 111a and the infrared electrothermal coating 111b are heated simultaneously or the infrared electrothermal coating 111 is heated integrally, the overall resistance of the infrared electrothermal coating 111a is reduced due to the conductive electrode 112b and the conductive electrode 112d, so that the temperature of the infrared electrothermal coating 111a region is increased, and the temperature field of the whole infrared electrothermal coating 111 region is changed.
Similar to the examples of fig. 3-4, the real-time temperature of the region of the infrared electrothermal coating 111a may be detected by the temperature sensor 2 and transmitted to the circuit board 3, and the circuit board 3 may control the temperature of the infrared electrothermal coating 111a and/or the infrared electrothermal coating 111b according to the real-time temperature.
Fig. 8 is a schematic diagram of a control curve of a heater provided in an embodiment of the present application.
In fig. 8, the abscissa T represents time, and 0 to T5 are control periods of the infrared electrothermal coating 111a region, and the ordinate T represents the temperature of the infrared electrothermal coating 111a region, and the temperature value can be detected and fed back by the temperature sensor 2. The heating power provided by the power supply is controlled according to the temperature information of the infrared heating coating 111a region in the whole control period of the infrared heating coating 111a region.
The heater 11 illustrated in fig. 3 to 4 is described below as an example:
1. during the period of 0 to T1, the control power supply supplies heating power to the infrared electrothermal coating 111a such that the temperature of the region of the infrared electrothermal coating 111a rises from the initial temperature to the first preset target temperature T1.
The initial temperature may be ambient temperature or a temperature greater than ambient temperature.
The first preset target temperature T1 is between 230 ℃ and 300 ℃, preferably between 240 ℃ and 300 ℃, further preferably between 240 ℃ and 290 ℃, further preferably between 240 ℃ and 280 ℃. In a specific example, 250 ℃, 260 ℃, 270 ℃, and the like may be set.
Generally, during the duration of this period, the control power is supplied to the infrared electrothermal coating 111a with the maximum heating power, for example: the heating power of 20w to 40w enables the temperature of the infrared electrothermal coating 111a region to rapidly rise to the first preset target temperature T1.
Generally, the start time of the period 0 to t1 is a predetermined time (including a time when the start signal is received and a time after the start signal is received) after the start signal is received by the controller, and the controller starts the control operation at this time. The activation signal may be a signal generated by an air flow sensor or a signal generated by a key switch.
2. During T1-T2, the control power supply provides heating power to the infrared electrothermal coating 111a such that the infrared electrothermal coating 111a region maintains the first preset target temperature T1.
Generally, during the duration of this period, the control power is supplied to the infrared electrothermal coating 111a with a relatively small heating power, for example: the heating power of about 5w to 15w is such that the temperature of the infrared electrothermal coating 111a region maintains the first preset target temperature T1. Maintaining the first preset target temperature T1 means that the temperature of the infrared electrothermal coating 111a region may fluctuate up and down at the target temperature T1, or that the temperature of the infrared electrothermal coating 111a region does not exceed the target temperature T1.
The period 0 to t2 may also be referred to as a warm-up phase or warm-up period, which has a duration of 10s to 30s (inclusive), for example: and may be 12s, 15s, 20s, 25s, 30s, etc. A prompt may be generated at time t2 to prompt the user to aspirate the aerosol; means of prompting include, but are not limited to, sound, light, vibration, and the like. the period t2 to t5 may also be referred to as a puff period, during which the user may puff the aerosol generated by the aerosol-generating substrate.
During the period of 0-t 2, no heating power is supplied to the infrared electrothermal coating 111b by the power supply, i.e., only the infrared electrothermal coating 111a starts heating, and the infrared electrothermal coating 111b does not start heating. In other words, the aerosol-generating article being heated at this time has only a first portion of the article corresponding to the infrared electrothermal coating 111a, with fewer portions being heated relative to the entire aerosol-generating article; in this way, on the one hand a rapid generation of the smokable aerosol is facilitated and on the other hand the water content in the heated product is relatively reduced, avoiding the problem of the user feeling hot when sucking the aerosol, in particular when sucking the first aerosol.
It will be appreciated that due to the thermal conductivity of the substrate 110, article, etc., the infrared electrothermal coating 111b region and its corresponding second portion of the article, all slowly rise in temperature. The first part of the article corresponding to the infrared electrothermal coating 111a and the second part of the article corresponding to the infrared electrothermal coating 111b may be aerosol-forming substrates having substantially the same composition or may comprise different components. There is no physical separation between the two partial articles, or there is heat transfer between the two partial articles.
In other examples, a so-called hold or hold period is not used during t1 to t2, but is also possible; at this time, during the period of 0 to T2, the region of the infrared electrothermal coating 111a may be controlled to rise from the initial temperature to the first preset target temperature T1 with a relatively gentle rising trend (or a small slope of the curve).
3. During T2-T3, the control power supply simultaneously provides heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b such that the region of the infrared electrothermal coating 111a maintains the first preset target temperature T1 at the allocated heating power.
the duration of the period t 2-t 3 is 30 s-50 s. In a specific example, 40s may be possible.
During this time, the heating power supplied from the power supply to the infrared heating coating 111 is distributed to two heating areas of the infrared heating coating 111a and the infrared heating coating 111b, and the infrared heating coating 111a and the infrared heating coating 111b correspond to two heating areas operating in parallel, so that the area with smaller resistance value has larger heating power and vice versa. If the resistance R of the infrared electrothermal coating 111a 111a And resistance R of infrared electrothermal coating 111b 111b For 3:2, the power supply provides 10w of heating power, 4w of heating power is allocated to the infrared electrothermal coating 111a region, and 6w of heating power is allocated to the infrared electrothermal coating 111b region.
Similar to the period t 1-t 2, during the period t 2-t 3, the power supply may be controlled to provide relatively little heating power to the infrared electrothermal coating 111, for example: the heating power of about 5w to 15w enables the temperature of the infrared electrothermal coating 111a region to be maintained at the first preset target temperature T1 under the allocated heating power.
Unlike the period 0-t 2, the temperature of the infrared electrothermal coating 111b region can rise rapidly at the distributed heating power (although the power is small) and the temperature difference from the infrared electrothermal coating 111a region during the period t 2-t 3.
4. During T3-T4, the control power supply simultaneously supplies heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b such that the infrared electrothermal coating 111a region falls from the first preset target temperature T1 to the second preset target temperature T2 and maintains the second preset target temperature T2 at the allocated heating power.
the duration of the period t 3-t 4 is 30 s-50 s. In a specific example, 40s may be possible.
Generally, the difference between the first preset target temperature T1 and the second preset target temperature T2 is between 10 ℃ and 30 ℃. In a specific example, it may be 20 ℃.
Similar to the period t2 to t3, the heating power supplied from the power supply is distributed to two areas of the infrared electrothermal coating 111a and the infrared electrothermal coating 111b during the period t3 to t 4.
Similar to the period t 2-t 3, during the period t 3-t 4, the power supply may be controlled to provide relatively little heating power to the infrared electrothermal coating 111, for example: the heating power of about 5w to 15w enables the temperature of the infrared electrothermal coating 111a region to be reduced from the first preset target temperature T1 to the second preset target temperature T2 and to maintain the second preset target temperature T2 at the allocated heating power.
Unlike the period t2 to t3, the temperature change of the infrared electrothermal coating 111b region is substantially the same as the change of the infrared electrothermal coating 111a region at the allocated heating power and the temperature difference from the infrared electrothermal coating 111a region during the period t3 to t 4.
5. During T4-T5, the control power supply simultaneously supplies heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b such that the infrared electrothermal coating 111a region falls from the second preset target temperature T2 to the third preset target temperature T3 and maintains the third preset target temperature T3 at the allocated heating power.
the duration of the period t4 to t5 is between 30s and 200s.
Generally, the difference between the second preset target temperature T2 and the third preset target temperature T3 is between 10 ℃ and 20 ℃. In a specific example, it may be 15 ℃.
Similar to the period t3 to t4, the heating power supplied from the power supply is distributed to the infrared electrothermal coating 111a region and the infrared electrothermal coating 111b region during the period t4 to t 5.
Similar to the period from t3 to t4, during the period from t4 to t5, the power supply may be controlled to supply a relatively small heating power to the infrared electrothermal coating 111, for example: the heating power of about 5w to 15w enables the temperature of the infrared electrothermal coating 111a region to be reduced from the second preset target temperature T2 to the third preset target temperature T3 and to maintain the third preset target temperature T3 at the allocated heating power.
Similar to the period from t3 to t4, the temperature change of the infrared electrothermal coating 111b region is substantially the same as the change of the infrared electrothermal coating 111a region at the assigned heating power and the temperature difference from the infrared electrothermal coating 111a region during the period from t4 to t 5.
It should be noted that, during the period from t4 to t5, the temperature difference between the infrared electrothermal coating 111a region and the infrared electrothermal coating 111b region is determined by the resistance relationship between them: if the resistance values of the two are the same, there is no temperature difference between the two; if the resistance values of the two are different, the heating power distributed by the region with smaller resistance value is larger, and the temperature of the region with smaller resistance value is higher than that of the region with larger resistance value. Based on the characteristics, in the actual operation process, the overall resistance value of the infrared electric heating coating 111b is reduced through the connecting electrode 112d and the connecting electrode 112e, on one hand, the infrared electric heating coating 111b is beneficial to obtain larger heating power in the period from t4 to t5, so that the temperature of the infrared electric heating coating 111b is higher than that of the infrared electric heating coating 111a, the problem that less aerosol is generated in the period from t4 to t5 to cause the reduction of the user suction experience is avoided, and meanwhile, the suction consistency is maintained; on the other hand, the time for which the partial product corresponding to the infrared electrothermal coating 111b is heated is later than the time for which the partial product corresponding to the infrared electrothermal coating 111a is heated, and the whole resistance value of the infrared electrothermal coating 111b is reduced by the connection electrode 112d and the connection electrode 112e, so that the partial product corresponding to the infrared electrothermal coating 111b can be ensured to be sufficiently heated, or the waste caused by that the partial product is not heated completely can be avoided.
At time t5, an aerosol-generating article has been or is deemed to be depleted, at which point the controllable power source ceases to provide heating power to the infrared electrothermal coating 111. Further, a prompt may be generated to prompt the user to update the aerosol-generating article or that the aerosol-generating article has been depleted; means of prompting include, but are not limited to, sound, light, vibration, and the like.
It should be noted that the control curve shown in fig. 8 may also be applied to other heating methods, such as resistive heating, electromagnetic heating, air heating, and the like.
It should be noted that, in other examples, there is no so-called temperature drop trend during t3 to t5, and it is also possible; at this time, during T3 to T5, the power supply may be controlled to simultaneously supply heating power to the infrared electrothermal coating 111a and the infrared electrothermal coating 111b such that the temperature of the region of the infrared electrothermal coating 111a is always maintained at the first preset target temperature T1.
Fig. 9 is a schematic diagram of an actual temperature profile of a heater provided in an embodiment of the present application.
Based on the heater 11 illustrated in fig. 3-4, the control curve shown in fig. 8 is used to control the heater 11, and then the real-time temperatures of the infrared electrothermal coating 111a region and the infrared electrothermal coating 111b region are measured by two temperature sensors, respectively (the temperature sensor in the infrared electrothermal coating 111a region may be used as the temperature sensor in the examples in fig. 3-4), and finally a graph of time versus temperature is obtained.
As shown in fig. 9, S1 is a graph of time versus temperature for the infrared electrothermal coating 111a region, and S2 is a graph of time versus temperature for the infrared electrothermal coating 111b region.
The "control curve" indicates that the controller controls the operation of the heater 11 according to the curve, and the "temperature curve" indicates the relationship between the temperature and time generated during the operation of the heater 11. The controller may be part of the wiring board 3 including, but not limited to, an MCU.
During the period of 0 to 30 seconds (corresponding to the control period of 0 to t2 in fig. 8), the temperature of the infrared electrothermal coating 111a region rises from the initial temperature (about 28 c) to about 270 c. The temperature of the infrared electrothermal coating 111b region is gradually increased to about 80 ℃ due to the effect of heat transfer, since the heating is not started in the infrared electrothermal coating 111b region.
During the period of 30s to 70s (corresponding to the period of t2 to t3 in fig. 8), since the infrared electrothermal coating 111b and the infrared electrothermal coating 111a are simultaneously activated to be heated at the time of 30s, the temperature of the region of the infrared electrothermal coating 111b rapidly rises. While the temperature in the region of infrared electrothermal coating 111a tends to be gentle (slightly decreased).
During the period of 70s to 110s (corresponding to the period of t3 to t4 control in fig. 8), the temperature of the infrared electrothermal coating 111a region is reduced to about 230 ℃, and the temperature change of the infrared electrothermal coating 111b region is substantially the same as the temperature change of the infrared electrothermal coating 111a region.
During the period 110s to 240s, (corresponding to the period of t4 to t5 control in fig. 8), the temperature of the infrared electrothermal coating 111a region is reduced to about 210 ℃, and the temperature change of the infrared electrothermal coating 111b region is also about the same as the temperature change of the infrared electrothermal coating 111a region. Thereafter, the temperature in the region of infrared electrothermal coating 111b and the temperature in the region of infrared electrothermal coating 111a are equilibrated at about 140 s. During 140s to 240s, the temperature of the infrared electrothermal coating 111b region is significantly higher than the temperature of the infrared electrothermal coating 111a region because the resistance of the infrared electrothermal coating 111b is smaller than that of the infrared electrothermal coating 111 a.
It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations on the content of the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope described in the present specification; further, modifications and variations of the present invention may occur to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be within the scope of the appended claims.
Claims (17)
1. An aerosol-generating device configured to heat an aerosol-forming substrate to generate an aerosol; the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate; characterized in that the aerosol-generating device comprises:
a power supply;
a heater comprising a first heating zone for heating the first portion of aerosol-forming substrate and a second heating zone for heating the second portion of aerosol-forming substrate;
a controller configured to:
controlling the power supply to supply heating power only to the first heating region during a first portion of a control period of the heater so that a temperature of the first heating region rises from an initial temperature to a first preset target temperature;
controlling the power supply to simultaneously provide heating power to the first heating zone and the second heating zone during the remainder of the control period of the heater;
wherein the duration of the first portion period is between 10s and 30s.
2. An aerosol-generating device according to claim 1, wherein the aerosol-generating device has a mouth end, a distal end opposite the mouth end;
Wherein the first portion of aerosol-forming substrate is closer to the mouth end than the second portion of aerosol-forming substrate.
3. An aerosol-generating device according to claim 1, wherein the first heating region and the second heating region are each independently controllable; alternatively, the first heating zone may be independently controllable and the second heating zone may not be independently controllable.
4. An aerosol-generating device according to claim 1, further comprising a temperature sensor for measuring temperature information of the first heating zone;
the controller is configured to control the heating power provided by the power supply according to the temperature information of the first heating area fed back by the temperature sensor during the whole control period of the heater.
5. An aerosol-generating device according to claim 1, wherein the starting time of the first portion period is a predetermined time after the controller receives an activation signal.
6. An aerosol-generating device according to claim 1, wherein the first portion period comprises a first duration and a second duration;
The controller is configured to:
controlling the power supply to provide a first heating power to the first heating region for the first duration so that the temperature of the first heating region rises from an initial temperature to a first preset target temperature;
controlling the power supply to provide a second heating power to the first heating region for the second duration so that the temperature of the first heating region maintains a first preset target temperature;
wherein the second heating power is less than the first heating power.
7. An aerosol-generating device according to claim 1, wherein the remainder period comprises a third duration;
the controller is configured to control the power supply to simultaneously supply heating power to the first heating zone and the second heating zone for the third duration such that the temperature of the first heating zone maintains a first preset target temperature.
8. An aerosol-generating device according to claim 1, wherein the remaining portion period comprises a fourth duration;
the controller is configured to control the power supply to simultaneously supply heating power to the first heating zone and the second heating zone for the fourth duration such that the temperature of the first heating zone decreases from the first preset target temperature to a second preset target temperature and maintains the second preset target temperature.
9. An aerosol-generating device according to claim 8, wherein the remainder period comprises a fifth duration;
the controller is configured to control the power supply to simultaneously supply heating power to the first heating region and the second heating region for the fifth duration such that the temperature of the first heating region drops from the first preset target temperature to a third preset target temperature and maintains the third preset target temperature before the temperature of the first heating region drops to the second preset target temperature.
10. An aerosol-generating device according to claim 8, wherein the remainder period comprises a time at which the temperature between the first heating region and the second heating region reaches equilibrium;
the temperature of the first heating region is reduced to the second preset target temperature at a timing earlier than a timing at which the temperature between the first heating region and the second heating region reaches equilibrium.
11. An aerosol-generating device according to claim 1, wherein the remainder period comprises a sixth duration; wherein the end time of the sixth duration is the end time of the control period of the heater;
The controller is configured to control the power supply to simultaneously supply heating power to the first heating region and the second heating region for the sixth duration such that a temperature of the first heating region is less than a temperature of the second heating region.
12. An aerosol-generating device according to claim 1, wherein the first heating region and the second heating region are configured to operate in parallel during the remainder portion;
and the heating power provided by the power supply during the rest part is distributed to the first heating area and the second heating area according to a preset resistance relation between the first heating area and the second heating area.
13. An aerosol-generating device according to claim 12, wherein the resistance of the first heating region is greater than the resistance of the second heating region.
14. An aerosol-generating device according to claim 1, wherein the heater comprises:
a base;
the infrared electrothermal coating is arranged on the surface of the matrix; the infrared electrothermal coating includes a first infrared electrothermal coating defining the first heating region, and a second infrared electrothermal coating defining the second heating region;
A conductive element including a first conductive electrode, a second conductive electrode, and a third conductive electrode disposed on a surface of the substrate at a distance from each other;
wherein the power supply provides heating power to the first infrared electrothermal coating through the first conductive electrode and the third conductive electrode, and provides heating power to the second infrared electrothermal coating through the second conductive electrode and the third conductive electrode.
15. An aerosol-generating device according to claim 14, wherein the electrically conductive element further comprises at least one connection electrode;
the at least one connection electrode is used for separating the second infrared electrothermal coating into at least two sub-infrared electrothermal coatings connected in series between the second conductive electrode and the third conductive electrode.
16. A method of controlling an aerosol-generating device configured to heat an aerosol-forming substrate to generate an aerosol; the aerosol-generating device comprises a power supply, a first heating zone for heating the first portion of aerosol-forming substrate, and a second heating zone for heating the second portion of aerosol-forming substrate; the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate; the control method is characterized by comprising the following steps:
Controlling the power supply to supply heating power only to the first heating region during a first portion of a control period of the heater so that a temperature of the first heating region rises from an initial temperature to a first preset target temperature;
controlling the power supply to simultaneously provide heating power to the first heating zone and the second heating zone during the remainder of the control period of the heater;
wherein the duration of the first portion period is between 10s and 30s.
17. A method of generating an aerosol from an aerosol-generating substrate using an aerosol-generating device,
the aerosol-generating substrate comprises a first portion of aerosol-generating substrate and a second portion of aerosol-generating substrate; the aerosol-generating device comprises a first heating zone for heating the first portion of aerosol-forming substrate, and a second heating zone for heating the second portion of aerosol-forming substrate;
characterized in that the method comprises:
during a first portion of a control period of the heater, the first heating zone initiates heating and rises from an initial temperature to a first preset target temperature, while the second heating zone does not initiate heating;
During the remainder of the control period of the heater, the first heating zone and the second heating zone simultaneously initiate heating;
wherein the duration of the first portion period is between 10s and 30s.
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| CN202210872754.0A CN117461887A (en) | 2022-07-21 | 2022-07-21 | Aerosol generating device, control method thereof and aerosol generating method |
| PCT/CN2023/108641 WO2024017370A1 (en) | 2022-07-21 | 2023-07-21 | Aerosol generation device and control method therefor, and method for generating aerosols |
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| CN202210872754.0A CN117461887A (en) | 2022-07-21 | 2022-07-21 | Aerosol generating device, control method thereof and aerosol generating method |
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| GB201207054D0 (en) * | 2011-09-06 | 2012-06-06 | British American Tobacco Co | Heating smokeable material |
| CN103596458B (en) * | 2011-09-06 | 2017-07-28 | 英美烟草(投资)有限公司 | Heat smokeable material |
| KR101953201B1 (en) * | 2011-09-06 | 2019-02-28 | 브리티시 아메리칸 토바코 (인베스트먼츠) 리미티드 | Heating smokeable material |
| GB2515992A (en) * | 2013-03-22 | 2015-01-14 | British American Tobacco Co | Heating smokeable material |
| TW201740827A (en) * | 2016-05-13 | 2017-12-01 | 英美煙草（投資）有限公司 | Apparatus and method for heating smokable material |
| GB201612945D0 (en) * | 2016-07-26 | 2016-09-07 | British American Tobacco Investments Ltd | Method of generating aerosol |
| AR109120A1 (en) * | 2016-07-26 | 2018-10-31 | British American Tobacco Investments Ltd | APPARATUS FOR HEATING FUMABLE MATERIAL |
| EP4173507A1 (en) * | 2016-09-20 | 2023-05-03 | Nicoventures Trading Limited | A method of manufacturing an aerosol provision apparatus and an aerosol provision apparatus |
| KR102583037B1 (en) * | 2017-05-16 | 2023-09-27 | 이충언 | The heating element for generating the aersol and smoking device using the same |
| WO2019234143A1 (en) * | 2018-06-07 | 2019-12-12 | Philip Morris Products S.A. | Electrical heating assembly for heating an aerosol-forming substrate |
| CN108783602A (en) * | 2018-06-27 | 2018-11-13 | 威滔电子科技（深圳）有限公司 | Control the method and device that aerosol generating device generates aerosol |
| GB201907702D0 (en) * | 2019-05-30 | 2019-07-17 | Nicoventures Trading Ltd | Aerosol generation |
| CN112335940A (en) * | 2019-08-07 | 2021-02-09 | 深圳市合元科技有限公司 | Aerosol-generating system, smokable material and aerosol-generating device |
| GB201917476D0 (en) * | 2019-11-29 | 2020-01-15 | Nicoventures Trading Ltd | Aerosol provision system |
| CN213045192U (en) * | 2019-12-13 | 2021-04-27 | 安德烈斯·唐·塞巴斯蒂安 | Heating non-combustible smoking article |
| GB202013412D0 (en) * | 2020-08-27 | 2020-10-14 | Nicoventures Trading Ltd | Flavour glycoside |
-
2022
- 2022-07-21 CN CN202210872754.0A patent/CN117461887A/en active Pending
-
2023
- 2023-07-21 WO PCT/CN2023/108641 patent/WO2024017370A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024017370A1 (en) | 2024-01-25 |
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