EP4000433A1 - Dispositif de génération de fumée pour un chauffage par induction dans un canal d'air pliable - Google Patents

Dispositif de génération de fumée pour un chauffage par induction dans un canal d'air pliable Download PDF

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Publication number
EP4000433A1
EP4000433A1 EP20928055.1A EP20928055A EP4000433A1 EP 4000433 A1 EP4000433 A1 EP 4000433A1 EP 20928055 A EP20928055 A EP 20928055A EP 4000433 A1 EP4000433 A1 EP 4000433A1
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EP
European Patent Office
Prior art keywords
generating device
cigarette
smoke generating
heating
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20928055.1A
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German (de)
English (en)
Other versions
EP4000433B1 (fr
EP4000433A4 (fr
Inventor
Jun Wu
Tinghua Li
Shoubo LI
Donglai ZHU
Xia Zhang
Xiaowei GONG
Yi Han
Wei Zhao
Liu Hong
Junheng YOU
Xiaoxiang LIAO
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China Tobacco Yunnan Industrial Co Ltd
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China Tobacco Yunnan Industrial Co Ltd
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Publication date
Application filed by China Tobacco Yunnan Industrial Co Ltd filed Critical China Tobacco Yunnan Industrial Co Ltd
Publication of EP4000433A1 publication Critical patent/EP4000433A1/fr
Publication of EP4000433A4 publication Critical patent/EP4000433A4/fr
Application granted granted Critical
Publication of EP4000433B1 publication Critical patent/EP4000433B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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

Definitions

  • the present disclosure relates to the field of novel cigarette smoking utensil, and in particular, to a smoke generating device with induction heating in a folded airway.
  • heat-not-burn cigarettes are gaining increasing popularity among smokers since they are less harmful than traditional burning cigarettes.
  • heating methods of heat-not-burn cigarettes include: contact electric heating, non-contact electric heating, charcoal heating, etc.
  • Contact electric heating refers to obtaining flue gas through direct contact heating of cigarettes, which uses electric heating pipes, needles or plates and other forms of heating devices to directly contact the cigarettes or tobacco shreds, with direct contact and baking of cigarettes or tobacco at a temperature lower than the ignition point of the cigarette, so that the aroma and smoking components of the tobacco are volatilized, to meet smokers' requirements.
  • charcoal-heated cigarette has the characteristics of less harm than the existing ordinary cigarettes, as the front end of the cigarette is attached with a carbon rod, which increases the difficulty of cigarette manufacturing, thereby affecting production efficiency; there are also weaknesses such as it takes a long time for consumers to ignite the carbon rod, the carbon rod may have a certain peculiar smell in case of burning, or that carbon monoxide and other unsafe factors exist due to poor ventilation of the smoking environment. Besides, the carbon rod is difficult to control after igniting, tobacco shreds are still burning when not smoking, and the end of the carbon rod is in direct contact with or relatively close to the tobacco; thus, the following problem exists: at the end of the burning carbon rod, there may be direct baking or critical baking of a small amount of residual tobacco shreds.
  • the existing non-contact electric heating method uses a smoking utensil that electrically heats the input air, a ring-shaped metal heater, a flat-layer metal heater, or a combined flat-layer metal heater is directly energized and heated, so that the air flowing through the surface is heated, which is introduced into the cigarette for omnidirectional heating.
  • Existing heating cigarettes consist of two parts: a tobacco section and a filter rod.
  • Most of filter rods are composed of a supporting section close to the tobacco section, a cooling section in the middle, and the end in contact with the consumer's lips.
  • the heating cigarette is inserted into the existing smoke generating device to heat the cigarette, as the tobacco section of the cigarette is relatively short, most of which is only 10 ⁇ 15mm, with the maximum of 20mm.
  • Most cigarettes need to be inserted into the heating cavity of the smoke generating device together with the tobacco section and/or the supporting section of the filter rod.
  • the end of the heating element may be less than 2mm away from the supporting section of the cigarette filter rod, even penetrating into the head of the supporting section of the filter rod.
  • the supporting-section material cannot withstand the high temperature of the heating body with the occurrence of heat shrinkage or collapse. This not only affects smoking of the second half of the cigarette (the cigarette deforms or softens due to heat shrinkage or collapse of the supporting section), but also directly affects the smoking taste of the cigarette.
  • the present disclosure provides a smoke generating device with induction heating in a folded airway.
  • the smoke generating device includes: a cigarette introduction pipe 1, an induction coil 3, a heating cup 5, a heating element 6 and a magnetic sealing element 7;
  • the cigarette introduction pipe 1 is disposed at the upper end of the smoke generating device, with a hollow tubular structure, its internal cavity is an air-mixing cavity 1D, the center of the upper end of the cigarette introduction pipe 1 is the first introduction hole 1B, and the center of the lower end is the second introduction hole IE, the outer ring of the first introduction hole 1B is provided with a plurality of air-guiding grooves 1C, and the diameter of the air-mixing cavity 1D is larger than that of the first introduction hole 1B, the second introduction hole 1E and the first introduction hole 1B have the same diameter and are co-axial, the lower end of the cigarette introduction pipe 1 has at least one air inlet channel 1A;
  • the first introduction hole 1B and the second introduction hole 1E are co-axial with the same diameter, which are slightly smaller than the nominal diameter of the cigarette, so as to snap-fit the inserted cigarette and prevent the cigarette from being accidentally taken out by the lips during smoking.
  • the first introduction hole 1B and the second introduction hole 1E are preferably provided with chamfers to facilitate insertion of the cigarette in the direction in which the cigarette is inserted.
  • the second introduction hole 1E is a cigarette guiding hole that assists in guiding and fixing the cigarette filter.
  • the heating cup 5 is disposed below the cigarette introduction pipe 1, with a hollow cup-shaped structure as a whole, it has a cigarette accommodating cavity 8 inside, with at least one air inlet hole 9 at the bottom of the cup;
  • the magnetic sealing element 7 surrounds the periphery of the heating cup 5, with a hollow cup-shaped structure as a whole, the bottom of the cup is relatively sealed (only two wiring pins of the temperature measuring element 12 need to pass under the magnetic sealing element 7), and there is an airflow channel between the inner wall of the magnetic sealing element 7 and the outer wall of the heating cup 5;
  • the heating element 6 is disposed in the airflow channel, and the heating element 6 is made of a ferromagnetic metal with a structure that the air can pass through;
  • the heating element 6 is clustered ferromagnetic metal wires, a clustered ferromagnetic metal mesh, or a ferromagnetic porous metal, and its interior and/or surface has/forms numerous dense airflow passages;
  • the induction coil 3 is disposed on the periphery of the magnetic sealing element 7 and is connected to a power source;
  • Airflow is in communication between the air-guiding groove 1C, the air-mixing cavity 1D, the air inlet channel 1A, the airflow channel, the air inlet hole 9 and the cigarette accommodating cavity 8.
  • Airflow is in communication between numerous dense airflow passages that are on/ formed inside and/or on the surface of the heating element and the aforementioned airflow channels.
  • the magnetic sealing element 7 is composed of high-temperature resistant materials such as glass-ceramics or ceramics that the magnetic field can penetrate through.
  • the working principle of the air-mixing cavity 1D is that, when the cigarette to be smoked is inserted, the tobacco section of the cigarette is inserted into the cigarette accommodating cavity 8, and the cigarette filter rod is inserted into the cigarette introduction pipe 1.
  • Outside air enters the air-mixing cavity 1D from the air-guiding groove 1C.
  • the air at room temperature surrounding the cigarette filter rod heated through conduction and radiation separate the relatively high-temperature cigarette introduction pipe 1 from the cigarette filter rod, so that the existing cigarette introduction pipe 1 with a large area in contact with the cigarette filter rod becomes only in contact with the partial bore wall of the first introduction hole 1B and the short cylindrical inner bole wall of the second introduction hole 1E.
  • the contact area between the two holes and the cigarette filter rod is small.
  • the upper end of the second introduction hole 1E also has an orifice chamfer, which not only facilitates the introduction of cigarettes, but also further reduces the contact area with the cigarette filter rod.
  • the axial length of the contact part of the second introduction hole 1E bore wall and the cigarette filter rod is preferably 0.3-0.8mm, basically in a linear contact.
  • the temperature of the cigarette introduction pipe 1 is high, it is not easy to cause heat shrinkage of the material in the supporting section of the cigarette filter rod or generating peculiar smell; meanwhile, the relatively high temperature of the cooling section on the inner wall of the air-mixing cavity 1D of the cigarette introduction pipe 1 and the cigarette nozzle inserted into the center can properly pre-heat the inhaled air at room temperature, so as to achieve the purpose of reducing power consumption of the smoking utensil and improving heating efficiency.
  • the induction coil 3 applies high-power, medium- and high-frequency currents when the smoking utensil is working, which can perform electromagnetic induction heating on the heating element 6 made of a ferromagnetic material.
  • the induction coil 3 is disposed on the periphery of the magnetic sealing element 7.
  • the heating element 6 includes a ferromagnetic metal fiber tow, a ferromagnetic metal fiber composite mesh, or ferromagnetic porous and foamed metal blocks.
  • the smoke generating device further includes: an electromagnetic isolation ring 2 with a hollow tubular structure, which is disposed on the periphery of the induction coil 3.
  • the induction coil 3 has a high-temperature insulation layer.
  • the smoke generating device further includes:
  • the high-temperature resistance means that the material does not significantly deform at 300 degrees Celsius.
  • the insulation and heat isolation layer 7A is a made of a high-temperature resistant material, so as to protect the insulation layer on the surface of the induction coil 3 wound on it from ablation due to the high temperature of the magnetic sealing element 7. In this way, when the induction coil 3 passes medium- to high-frequency current, the high-frequency varying magnetic field acting on the heating element 6 can generate numerous small-range induced eddy currents in the heating element 6 made of a ferromagnetic material, which makes the heating element 6 quickly heat up.
  • the insulating and high-temperature resistant wrapping layer 7B is a high-temperature resistant, insulating protective-film wrapping layer that is added to the outer layer of the induction coil 3 to protect against high temperature and assist in fixing the induction coil 3, it is used to protect the induction coil 3 and fix it on the outside of the magnetic sealing element 7.
  • the electromagnetic isolation ring 2 is made of a non-ferromagnetic material including copper or aluminum alloy, the inner wall of the electromagnetic isolation ring 2 is 0.1-1mm or more from the insulating and high-temperature resistant wrapping layer 7B wrapped outside the induction coil 3; in this case, it minimizes the radially outward heat transfer of the entire smoke generating device on one hand, on the other hand, it prevents electromagnetic signals from radiating to the radially external radiation of the smoke generating device, thereby ensuring that there is a relatively good external electromagnetic environment around the smoke generating device, while reducing the transmission of electromagnetic power from useless directions.
  • the smoke generating device further includes: a first temperature measuring element 4 and a second temperature measuring element 12; wherein, the first temperature measuring element 4 is implanted in the heating element 6, and the second temperature measuring element 12 is disposed in the heat-equalizing cavity 11 formed between the bottom of the heating cup 5 and the bottom of the magnetic sealing element 7 inside and facing the air inlet hole 9.
  • the working processes of the first temperature measuring element 4 and the second temperature measuring element 12 are as follows: in the control circuit attached to the smoke generating device, the temperature of the heating element 6 is measured by the first temperature measuring element 4 and sent to the control circuit to control the electrical parameters loaded on the induction coil 3 in a timely manner.
  • the heating element 6 exchanges the heat thereon with the inlet gas, they are sucked into the heat-equalizing cavity 11 and mixed evenly, and sucked into the cigarette from the air inlet hole 9 at the bottom of the heating cup 5 of the second temperature measuring element 12 in the center to heat the tobacco shreds of the cigarette.
  • the second temperature measuring element 12 measures the air temperature in the heat-equalizing cavity 11 again and sends the information to the control circuit to get feedback and control of the heating power, rate and other parameters of the heating element 6.
  • the smoke generating device further includes: a heat-insulating pipe 10, a heat-insulating seat 13, and a base 14; wherein, the heat-insulating pipe 10 is disposed on the periphery of the electromagnetic isolation ring 2 and is snap-fitted between the cigarette introduction pipe 1 and the base 14;
  • the electromagnetic isolation ring 2 is snap-fitted between the cigarette introduction pipe 1 and the heat-insulating seat 13;
  • the heat-insulating seat 13 is disposed under the magnetic sealing element 7, the base 14 is disposed under the heat-insulating seat 13.
  • the heat-insulating pipe 10 is a vacuum double-layer insulating pipe.
  • the heat-insulating seat 13 is made of heat-resistant silica gel.
  • the base 14 is made of high-temperature resistant PEEK plastic, etc.
  • the induction coil 3 is connected to a power source through a connecting wire 15, and the connecting wire 15 passes through the heat-insulating seat 13 and the base 14.
  • an electromagnetic isolation layer is disposed in the smoke generating device, and the electromagnetic isolation layer includes: an electromagnetic isolation layer affixed to the inside of the air-mixing cavity 1D, and an electromagnetic isolation layer affixed to the upper or lower part of the heat-insulating seat 13.
  • the upper part of the axial direction can be pasted with an aluminum foil layer of 0.01 ⁇ 0.1mm on the surrounding inner walls and upper and lower inner walls of the air-mixing cavity 1D; the lower end of the cigarette introduction pipe 1 has an inner boss protruding radially inward (the inner boss is formed inside the second introduction hole IE), and the lower end surface of the inner boss must be pasted with 0.01-0.1mm aluminum foil.
  • an aluminum washer of 0.01-0.1mm can also be attached to the upper or lower part of the heat-insulating seat 13, which can also prevent electromagnetic interference from being generated in the axial lower part.
  • the surface of this layer of aluminum washer facing the direction of the cigarette accommodating cavity 8 is preferably silver-plated or polished to be high-gloss, so as to reflect back the heat radiated from the heat-equalizing cavity 11 for heat preservation inside the smoke generating device.
  • the air inlet holes 9 are distributed annularly at the bottom of the heating cup 5.
  • the diameter of the first introduction hole 1B and the second introduction hole 1E is slightly smaller than the nominal diameter of the cigarette to be smoked, which is equal to or smaller than the diameter of the cigarette accommodating cavity 8.
  • the lower end of the cigarette introduction pipe 1 has an inner boss extending radially inward and has a lower boss extending axially downward, at least one air inlet channel 1A is annularly distributed on and penetrates the lower boss
  • the upper end of the heating cup 5 abuts against the lower surface of the inner boss and is disposed inside the lower boss; the upper end of the magnetic sealing element 7 is disposed outside the lower boss.
  • Cigarette introduction pipe 1A. Air inlet channel, 1B. First introduction hole, 1C. Air-guiding groove, 1D. Air-mixing cavity, 1E. Second introduction hole, 2. Electromagnetic isolation ring, 3. Induction coil, 4. First temperature measuring element, 5. Heating cup, 6. Heating element, 7. Magnetic sealing element, 7A. Insulation and heat-solation layer, 7B. Insulating and high-temperature resistant wrapping layer, 8. Cigarette accommodating cavity, 9. Air inlet hole, 10. Heat-insulating cavity, 11. Heat-equalizing cavity, 12. Second temperature measuring element, 13. Heat-insulating seat, 14. Base, 15. Connecting wire.
  • a smoke generating device with induction heating in a folded airway includes: a cigarette introduction pipe 1, an isolation ring 2, an induction coil 3, a first temperature measuring element 4, a heating cup 5, a heating element 6, a magnetic sealing element 7, an insulation and heat isolation layer 7A, an insulating and high-temperature resistant wrapping layer 7B, a cigarette accommodating cavity 8, an air inlet hole 9, a heat-insulating cavity 10, a heat-equalizing cavity 11, a second temperature measuring element 12, a heat-insulating seat 13, a base 14, and connecting wire 15.
  • the cigarette introduction pipe 1 is disposed at the upper end of the smoke generating device, with a hollow tubular structure, its internal cavity is an air-mixing cavity 1D, the center of the upper end of the cigarette introduction pipe 1 is the first introduction hole 1B, and the center of the lower end is the second introduction hole IE, the outer ring of the first introduction hole 1B is provided with a plurality of air-guiding grooves 1C, and the diameter of the air-mixing cavity 1D is larger than that of the first introduction hole 1B, the second introduction hole 1E and the first introduction hole 1B have the same diameter and are co-axial, the lower end of the cigarette introduction pipe 1 has at least one air inlet channel 1A;
  • the diameter of the first introduction hole 1B is equal to that of the second introduction hole IE, which is slightly smaller than that of the cigarette accommodating cavity 8, and also equal to or slightly smaller than the outer diameter of the inserted cigarette;
  • the outside of the cigarette introduction pipe 1 is designed with a plurality of stepped structures to fix the electromagnetic isolation ring 2, the heating cup 5, the magnetic sealing element 7, and the heat-insulating cavity 10 below through snap-fitting.
  • the specific design is as follows:
  • the induction coil 3 is disposed on the periphery of the magnetic sealing element 7 and is connected to a power source, the induction coil 3 can inductively heat the heating element 6 made of a ferromagnetic material.
  • the inhaled airflow passes through: the air-guiding groove 1C, the air-mixing cavity 1D, the air inlet channel 1A, the airflow channel, the air inlet hole 9, and the cigarette accommodating cavity 8.
  • the material of the cigarette introduction pipe 1 is made of a high-temperature resistant PEEK synthetic material with relatively poor heat conductivity.
  • the heating cup 5 is made of glass-ceramics or ceramics.
  • the magnetic sealing element 7 is made of glass-ceramic.
  • the electromagnetic isolation ring 2 has a hollow tubular structure and is disposed on the periphery of the induction coil 3.
  • the electromagnetic isolation ring 2 is made of a non-ferromagnetic material including copper or aluminum alloy.
  • the insulating and high-temperature resistant wrapping layer 7B is a high-temperature resistant, insulating protective film coating layer that is added to the outer layer of the induction coil 3 to protect and assist in fixing the induction coil 3, which is used to protect the induction coil 3 and fix it on the outer side of the heating cup 5.
  • the insulation and heat isolation layer 7A is a made of a high-temperature resistant material that is wrapped on the periphery of the magnetic sealing element 7, so as to protect the insulation layer on the surface of the induction coil 3 wound on it from ablation due to the high temperature of the magnetic sealing element 7.
  • the high-frequency varying magnetic field acting on the heating element 6 can generate numerous small-range induced eddy currents in the heating element 6 made of a ferromagnetic material, which makes the heating element 6 quickly heat up.
  • the first temperature measuring element 4 is disposed inside the heating element 6, and the second temperature measuring element 12 is disposed in the heat-equalizing cavity 11 formed between the bottom of the heating cup 5 and the bottom of the magnetic sealing element 7 and is opposite to the air inlet hole 9 in the center.
  • the smoke generating device is attached with a control circuit (not shown in the figures of the present disclosure).
  • the working process of the control circuit is as follows: The temperature of the heating element 6 is measured by the first temperature measuring element 4 and sent to the control circuit to control the electrical parameters loaded on the induction coil 3 in a timely manner.
  • the heating element 6 exchanges the heat thereon with the inlet gas, the gas is sucked into the heat-equalizing cavity 11 formed below the bottom of the heating cup 5 and the bottom of the magnetic sealing element 7 to be uniformly mixed, the temperature becomes consistent, and the gas is inhaled from the center, with the heating cup 5 of the second temperature measuring element 12 at the bottom of the air inlet hole 9, into the cigarette, to heat and bake the tobacco shreds of the cigarette.
  • the second temperature measuring element 12 measures the air temperature in the heat-equalizing cavity 11 again, and sends the information to the control circuit to get feedback and control of the heating power, rate and other parameters of the heating element 6.
  • the heat-insulating pipe 10 is disposed on the periphery of the electromagnetic isolation ring 2 and is snap-fitted between the cigarette introduction pipe 1 and the base 14; the electromagnetic isolation ring 2 is snap-fitted between the cigarette introduction pipe 1 and the heat-insulating seat 13; the heat-insulating seat 13 made of heat-resistant silica gel is disposed below the magnetic sealing element 7, and the base 14 made of a high-temperature resistant material PEEK plastic is disposed under the heat-insulating seat 13.
  • the heat-insulating pipe 10 is a vacuum double-layered and heat-insulation pipe.
  • the heat-insulating seat 13 and the base 14 cooperate with the above-mentioned components to complete the axial positioning of the entire smoke generating device.
  • the connecting wire 15 of the induction coil 3 also passes through the heat-insulating seat 13 and the base 14.
  • the upper part of the axial direction can be pasted with an aluminum foil layer of 0.01 ⁇ 0.1mm on the surrounding inner walls and upper and lower inner walls of the air-mixing cavity 1D (not shown in FIG.1 ); similarly, at the axial lower part of the smoke generating device, an aluminum washer of 0.01-0.1mm can also be attached to the upper or lower part of the heat-insulating seat 13 (not shown in FIG.1 ), which can also prevent electromagnetic interference from being generated in the axial lower part.
  • FIG.2 shows the positions of each part of the cigarette, sucking of airflow, and the direction of the airflow.
  • I is the tobacco section of the cigarette, the length of which is greater than the height at which the heating cup 5 can be inserted.
  • II is the filter rod of the cigarette, which is composed of the filter rod supporting section III inserted into the air-mixing cavity 1D, the flue gas cooling section IV exposed in the air, and the lip-end filter section V.
  • the air at room temperature surrounding the cigarette filter rod separates the high-temperature cigarette introduction pipe 1, the cigarette filter rod II only touches the partial wall of the first introduction hole 1B and that of the second introduction hole 1E.
  • the bore wall of the second introduction hole 1E that is indirectly heated is only in line contact with the tobacco section of the cigarette, which can effectively prevent heat shrinkage and deformation of the cigarette filter rod as it does not directly contact the cigarette filter rod.
  • the temperature of the cigarette introduction pipe 1 is relatively high after being sucked, thus it is not easy to cause heat shrinkage of the material in the supporting section III on the cigarette filter rod.
  • the high temperature of the inner wall of the air-mixing cavity 1D of the cigarette introduction pipe 1 can also appropriately increase the temperature of the inhaled air, so as to improve heat efficiency.
  • the airflow path in the smoke generating device is as follows: outside air enters the air-mixing cavity 1D from the first introduction hole 1B and the air-guiding groove 1C for mixing, the inner wall of the air-mixing cavity 1D pre-heats the air inside, the air enters the airflow channel through the air inlet channel 1A, and is heated by the heating element 6 inside, it enters the heat-equalizing cavity 11 after the heat and pressure are homogenized, then enters the cigarette in the cigarette accommodating cavity 8 through the air inlet hole 9 to heat the tobacco section of the cigarette to generate aerosol, and it is mixed with the aerosol to form smoke and sucked out of the cigarette by users.
  • the bottom of the heating cup 5 has a plurality of air inlet holes 9 distributed annularly, and the schematic longitudinal sectional view of the smoke generating device is shown in FIG.3 .
  • the second temperature measuring element 12 is disposed in the heat-equalizing cavity 11 formed between the bottom of the heating cup 5 and the bottom of the magnetic sealing element 7 and is opposite to or biases toward any air inlet hole 9 (demonstrated by the air inlet hole 9 on the far right in the figures).
  • the heated air enters the cigarette accommodating cavity 8 from the heat-equalizing cavity 11 through a plurality of annularly distributed air inlet holes 9, the degree of dispersion of the air is higher, and the heating effect of the cigarette is even.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
EP20928055.1A 2020-09-28 2020-09-28 Dispositif de génération de fumée pour un chauffage par induction dans un canal d'air pliable Active EP4000433B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/118484 WO2022061911A1 (fr) 2020-09-28 2020-09-28 Dispositif de génération de fumée pour un chauffage par induction dans un canal d'air pliable

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EP4000433A1 true EP4000433A1 (fr) 2022-05-25
EP4000433A4 EP4000433A4 (fr) 2022-09-21
EP4000433B1 EP4000433B1 (fr) 2023-11-01

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EP (1) EP4000433B1 (fr)
JP (1) JP7285333B2 (fr)
KR (1) KR102573417B1 (fr)
WO (1) WO2022061911A1 (fr)

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CN112021678A (zh) * 2020-09-28 2020-12-04 云南中烟工业有限责任公司 一种在折叠气道感应加热的发烟装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI669072B (zh) * 2014-05-21 2019-08-21 瑞士商菲利浦莫里斯製品股份有限公司 電熱式霧劑產生系統及用於此系統中之匣筒
CN106307622B (zh) * 2016-11-11 2018-10-23 云南拓宝科技有限公司 一种热气流加热不燃烧烟具
CN107594624A (zh) * 2017-10-20 2018-01-19 刘础齐 一种用于加热不燃烧卷烟的电加热型两级复合烘烤装置
CN109892700B (zh) * 2017-12-11 2024-01-23 湖南中烟工业有限责任公司 基于电磁加热的低温烟具模组及低温烟具
PT3732938T (pt) * 2017-12-28 2023-07-11 Jt Int Sa Conjunto de aquecimento por indução para um dispositivo de geração de vapor
US11191298B2 (en) * 2018-06-22 2021-12-07 Rai Strategic Holdings, Inc. Aerosol source member having combined susceptor and aerosol precursor material
CN208523782U (zh) * 2018-07-05 2019-02-22 湖南中烟工业有限责任公司 一种新型加热低温烟具
CN209628627U (zh) * 2018-11-08 2019-11-15 深圳市合元科技有限公司 烟支加热器、电加热吸烟装置及隔热组件
US20200237018A1 (en) * 2019-01-29 2020-07-30 Rai Strategic Holdings, Inc. Susceptor arrangement for induction-heated aerosol delivery device
AU2020235037A1 (en) * 2019-03-11 2021-09-23 Nicoventures Trading Limited Aerosol provision device
CN210008531U (zh) * 2019-04-01 2020-02-04 常州市派腾电子技术服务有限公司 加热组件、雾化器及电子烟
CN209965242U (zh) * 2019-04-16 2020-01-21 深圳市康柏特科技开发有限公司 一种周向加热式不燃烧烟具加热装置及烟具
CN211510581U (zh) * 2019-09-19 2020-09-18 深圳麦克韦尔科技有限公司 烟具

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