WO2024008162A1 - Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol - Google Patents

Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol Download PDF

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Publication number
WO2024008162A1
WO2024008162A1 PCT/CN2023/106156 CN2023106156W WO2024008162A1 WO 2024008162 A1 WO2024008162 A1 WO 2024008162A1 CN 2023106156 W CN2023106156 W CN 2023106156W WO 2024008162 A1 WO2024008162 A1 WO 2024008162A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
heating device
cavity
aerosol
air guide
Prior art date
Application number
PCT/CN2023/106156
Other languages
English (en)
Chinese (zh)
Inventor
吴涛
郑文
戚祖强
徐中立
李永海
Original Assignee
深圳市合元科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210800951.1A external-priority patent/CN117397876A/zh
Priority claimed from CN202320733081.0U external-priority patent/CN219556334U/zh
Application filed by 深圳市合元科技有限公司 filed Critical 深圳市合元科技有限公司
Publication of WO2024008162A1 publication Critical patent/WO2024008162A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • Embodiments of the present application relate to the technical field of aerosol generating devices, and in particular, to a heating device, an aerosol generating device and an aerosol generating system.
  • aerosol generating devices are increasingly used.
  • the most important component in the aerosol-generating device is the heating device.
  • the aerosol-generating product is heated by the heating device, so that the aerosol-generating product can generate smoke.
  • Existing products generally use a heating device at the air inlet end of the aerosol-generating product. The components are heated.
  • the inventor found that the design method of only arranging the heating component at the air inlet end of the aerosol-generating product will cause uneven circumferential heating of the aerosol-generating product.
  • the embodiments of the present application are intended to provide a heating device, an aerosol generating device and an aerosol generating system.
  • the thermal insulation component and the aerosol-generating product By fitting the thermal insulation component and the aerosol-generating product, the heat of the thermal insulation component heated by the heating component can be transferred to the aerosol-generating product.
  • the circumferential outer surface effectively utilizes the heat of the insulation component and reduces the parts of the heating device.
  • one technical solution adopted by the embodiments of the present application is to provide a heating device for heating aerosol-generating products, including: a heat preservation component and an air flow heating Component, insulation component, the insulation component includes an inner tube part and an outer tube part, a receiving cavity is provided inside the inner tube part, the outer tube part is arranged around the inner tube part, the outer tube part and the There is a cavity enclosed between the inner tube parts.
  • the cavity is vacuumed or filled with a medium with low thermal conductivity.
  • the receiving cavity is used to accommodate aerosol-generating products; an airflow heating component is provided.
  • the airflow heating component is used to heat the gas flowing through the airflow heating component, so that the heated gas heats the aerosol-generating product placed in the receiving chamber.
  • an aerosol generating device which includes a housing, a circuit device, a sheath and a heating device as described above.
  • the housing is provided with a receiving space and a A first plug-in interface, the first plug-in interface is connected with the receiving cavity, the receiving space is used to accommodate the circuit device, the sheath and the heating device, the sheath is set on the heating device Outside the device, the sheath is used to accommodate and support the heating device, the first plug port is used for external aerosol-generating products to be inserted into or pulled out of the sheath and the heating device, and the circuit device is connected to the heating device.
  • the heating device is electrically connected, and the circuit device is used to provide electrical energy to the heating device.
  • an aerosol generating system including an aerosol generating product and an aerosol generating device as described above, the aerosol generating device is used to provide The aerosol-generating product is plugged in, and the aerosol-generating device is used to heat the aerosol-generating product plugged in the receiving cavity.
  • the aerosol-generating product at least includes a tobacco section, a cooling section and a mouthpiece section, The tobacco section, the cooling section and the mouthpiece section are connected in sequence.
  • the heating device in the embodiment of the present application includes an insulation component and an airflow heating component.
  • the insulation component is provided with a receiving cavity.
  • the receiving cavity is used to accommodate aerosol-generating products.
  • the airflow heating component is disposed in the receiving cavity.
  • the airflow heating component is used to heat the airflow.
  • the gas in the heating component causes the heated gas to heat the aerosol-generating product placed in the receiving chamber.
  • the inner surface of the insulation component is in contact with the circumferential outer surface of the aerosol-generating product. The surfaces are close to each other, and the heat from the inner wall of the insulation component can be transferred to the aerosol-generating product.
  • the circumferential outer surface is used for auxiliary heating, which effectively utilizes the heat of the insulation component and reduces the parts of the heating device.
  • Figure 1 is a cross-sectional view of a heating device according to an embodiment of the present application.
  • Figure 2 is a cross-sectional view of the heat preservation component of the heating device according to the embodiment of the present application.
  • FIG 3 is a cross-sectional view of the heat preservation component of the heating device according to another embodiment of the present application.
  • FIG. 4 is a cross-sectional view of the heat preservation component of the heating device according to another embodiment of the present application.
  • Figure 5 is a cross-sectional view of the heat preservation component of the heating device according to another embodiment of the present application.
  • Figure 6 is an exploded view of the heating device according to the embodiment of the present application.
  • Figure 7 is an exploded view of the heating element in the heating device according to the embodiment of the present application, which is a heating element.
  • FIG. 8 is an exploded view from a perspective of a heating device in which the heating element is a metal heating mesh according to the embodiment of the present application.
  • FIG. 9 is an exploded view from a perspective of the heating device in the embodiment of the present application in which the heating element is an FPC heating film.
  • Figure 10 is an exploded view from a perspective of a heating element in the heating device according to the embodiment of the present application, which is a resistance heating element.
  • FIG. 11 is an exploded view from a perspective of the heating device of the embodiment of the present application, where the heating element is an induction coil.
  • Figure 12 is a cross-sectional view of the heating device from another perspective according to the embodiment of the present application.
  • Figure 13 is a cross-sectional view of the heating device in the embodiment of the present application in which the heating element is a heating circuit coating.
  • Figure 14 is a cross-sectional view of the aerosol generation system according to the embodiment of the present application.
  • Figure 15 is a cross-sectional view of the housing and sheath of the aerosol generating device according to the embodiment of the present application.
  • Figure 16 is an exploded view of the sheath of the aerosol generating device according to the embodiment of the present application.
  • FIG. 17 is an enlarged view of part A in FIG. 12 .
  • Figure 18 is a schematic view of the end cover of the aerosol generating device according to the embodiment of the present application.
  • Figure 19 is a schematic view of the second heat insulating member of the aerosol generating device according to the embodiment of the present application.
  • FIG. 20 is an enlarged view of part B in FIG. 12 .
  • Figure 21 is a cross-sectional view of the heating device in Embodiment 2 of the present application.
  • Figure 22 is a cross-sectional view of the heat preservation component in the heating device according to Embodiment 2 of the present application.
  • Figure 24 is a cross-sectional view of another heating device in Embodiment 2 of the present application.
  • installation includes welding, screwing, snapping, gluing, etc. to fix or restrict a certain component or device to a specific position or place.
  • the component or device can be maintained at a specific position or place. It can move within a limited range even if it is not moving.
  • the component or device is fixed. Or it may or may not be disassembled after being restricted to a specific position or place, which is not limited in the embodiments of this application.
  • the heating device 100 includes a heat preservation component 10 and an airflow heating component 20.
  • the heat preservation component 10 is provided with a receiving cavity 11 connected to the outside world.
  • the airflow heating component 20 is disposed at one end of the receiving cavity 11.
  • the receiving cavity 11 The other end is used to accommodate the aerosol generating article 2000.
  • the close fit means that the distance L1 between the inner surface of the thermal insulation component 10 and the circumferential outer surface of the aerosol-generating product 2000 placed in the containing cavity 11 is: 0 mm ⁇ L1 ⁇ 2 mm. In some embodiments, the distance L1 satisfies: 0.2mm ⁇ L1 ⁇ 0.7mm. In some embodiments, the distance L1 is 0.5 mm.
  • the airflow heating component 20 is used to heat the gas flowing through the airflow heating component 20 , so that the heated gas heats the aerosol-generating product 2000 placed in the receiving chamber 11 .
  • the inner surface of the insulation component 10 is heated by the airflow heating component 20
  • the heated heat can be directly or indirectly transferred to the outer surface of the aerosol-generating product 2000 to assist in heating the aerosol-generating product 2000 , fully utilizing the heat of the insulation component 10 .
  • the heating device 100 also includes a temperature measuring element 30 .
  • the temperature measuring element 30 is disposed inside the airflow heating assembly 20 .
  • the temperature measuring element 30 is used to measure the temperature of the airflow heating assembly 20 so as to facilitate The temperature of the airflow heating component 20 is monitored and controlled in real time.
  • the insulation component 10 includes an inner tube part 12 and an outer tube part 13.
  • the inner tube part 12 is provided with a receiving cavity 11.
  • the outer tube part 13 is arranged around the inner tube part 12.
  • the outer tube part 13 and the inner tube part 12 together form a closed cavity 14.
  • the inside of the closed cavity 14 is in a vacuum state or filled with inert gas with low thermal conductivity, so that the temperature of the outer tube part 13 of the insulation assembly 10 is lower than that of the inner tube.
  • the temperature of part 12 can play the role of heat insulation.
  • the inside of the closed cavity 14 when the inside of the closed cavity 14 is in a vacuum state, it does not mean that the inside of the closed cavity 14 is completely vacuum, but it should be understood that the air pressure in the closed cavity 14 is lower than the standard atmospheric pressure, that is, the closed cavity 14 is in a negative state. Pressure state, using the degree of vacuum to measure the rarefaction of the gas in the closed cavity 14 degree.
  • the outer tube part 13 and the inner tube part 12 jointly form a cavity 14 connected to the outside world, and the cavity 14 is filled with a medium with low thermal conductivity, such as glass. Fiber, asbestos, rock wool, silicate and other insulation materials.
  • the insulation assembly 10 may further include a contact member 15 disposed on the inner surface of the inner tube part 12 , and the contact member 15 is located between the first chamber 111 and the second chamber 111 . between chambers 112.
  • the contact piece 15 is used to connect with the air flow heating assembly 20 to fix the air flow heating assembly 20 in the first chamber 111.
  • the contact piece 15 also has a limiting effect on the air flow heating assembly 20 to prevent the air flow heating assembly 20 from being During installation, the first chamber 111 is exceeded into the second chamber 112 .
  • the abutting member 15 may be a rib, a button tooth, or the like.
  • the insulation assembly 10 meets at least one of the following conditions: the temperature of the inner tube part 12 is 100°C to 150°C; and the temperature of the outer tube part 13 is 40°C to 150°C. 80°C.
  • the inner tube portion 12 meets at least one of the following conditions: the inner tube portion 12 is close to the aerosol-generating article 2000 The temperature of one end is 100°C to 120°C; and the temperature of one end of the inner tube portion 12 close to the airflow heating component 20 is 120°C to 150°C.
  • the receiving cavity 11 is provided with a first chamber 111 and a second chamber 112.
  • the first chamber 111 and the second chamber 112 are connected along the first direction X, wherein, The first direction X is parallel to the center line of the thermal insulation component 10 .
  • the first chamber 111 is used to install the airflow heating assembly 20, and the second chamber 112 is used to install the aerosol-generating article 2000.
  • the aerosol Negative pressure is generated inside, and the external gas flows through the airflow heating assembly 20 and is heated by the airflow heating assembly 20 , and then enters the inside of the aerosol-generating product 2000 from the air inlet end, completing the heating of the aerosol-generating product 2000 .
  • the cross-sectional area of the first chamber 111 is larger than the cross-sectional area of the second chamber 112 , so that the shape of the receiving chamber 11 is stepped, which can It is beneficial to ensure that when the outer contour of the airflow heating component 20 along the first direction X is larger than the outer contour of the aerosol-generating article 2000 along the first direction The outer surface is close to fit, and at the same time, it is also convenient for the airflow heating component 20 to be installed in the first chamber 111 .
  • the cross-section of the first chamber 111 and the cross-section of the second chamber 112 are both perpendicular to the first direction X. It can be understood that in some embodiments, the inner diameters of the receiving chamber 11 along the first direction X may also be the same.
  • the receiving cavity 11 penetrates the inner tube portion 12 along the first direction Please refer to Figure 4, in which arrows indicate the direction of air flow.
  • the insulation assembly 10 also includes a peripheral plate 16.
  • the peripheral plate 16 is provided on the outside of the outer tube portion 13, so that the openings of the accommodation cavity 11 to the outside can be located at the openings of the insulation assembly 10.
  • an air inlet channel is formed between the peripheral plate 16 and the outer tube portion 13 . When the gas flows through the air inlet channel, it absorbs the heat of the outer tube portion 13 , so that the gas is preheated before entering the air guide channel 211 .
  • the airflow heating assembly 20 includes an air guide element 21 and a heating element 22 .
  • the gas guide element 21 is used to provide gas flow
  • the heating element 22 is used to heat the gas guide element 21 , or the gas guide element 21 self-heats under the action of the heating element 22 , thereby heating the gas flowing through the gas guide element 21 .
  • the air guide element 21 is made of graphite, and the air guide element 21 has good thermal conductivity, which is beneficial to improving heating efficiency.
  • the gas-guiding element 21 is made of graphite alloy, where the graphite alloy has good magnetic permeability properties and has high thermal conductivity.
  • the good magnetic permeability characteristics allow the heating element 22 to use electromagnetic heating methods other than resistance heating methods, so that the air-conducting element 21 can also generate heat, increasing the heating options.
  • Higher thermal conductivity can effectively reduce the time required for the heating element 22 to heat the air guide element 21 to a predetermined temperature, thereby improving the heating efficiency of the airflow heating assembly 20 .
  • the air guide element 21 is provided with a second installation groove 212 and at least one through-flow air guide channel 211 .
  • the air guide channel 211 allows external air to flow from one end of the air guide element 21 to the other end of the air guide element 21 .
  • the air guide channel 211 penetrates the air guide element 21 along the first direction X, and the number of the air guide channels 211 is multiple.
  • the shape of the air guide channel 211 may be an irregular shape.
  • the air guide channel 211 may be in an irregular shape.
  • the internal shape of the element 21 can be inclined, spiral or circuitous, as long as the external air passes through the air guide channel 211 from one end of the air guide element 21 and then flows to the other end of the air guide element 21 .
  • the second mounting groove 212 is located at the center of the cross section of the air guide element 21 and is used to install the temperature measuring element 30 , wherein the cross section of the air guide element 21 is perpendicular to the first direction X.
  • the second installation groove 212 is an air guide channel 211 located at the cross-sectional center of the air guide element 21 , and the temperature measuring element 30 is disposed in the air guide channel 211 .
  • the shape of the plurality of air guide channels 211 is cylindrical, and the diameter D1 of the air guide channel 211 satisfies: 0 ⁇ D1 ⁇ 0.5mm.
  • the ratio of the sum of the cross-sectional areas of the multiple air guide channels 211 to the cross-sectional area of the air guide element 21 is greater than or equal to 1/5; wherein, the cross section of the air guide channels 211 is within the cross section of the air guide element 21 , the cross section of the air guide channel 211 and the cross section of the air guide element 21 are both perpendicular to the center line of the air guide element 21 .
  • a plurality of air guide channels 211 are arranged around the center of the air guide element 21 .
  • the ratio of the number of air guide channels 211 located on the inner ring to the number of air guide channels 211 located on the outer ring is equal to the ratio of the radius of the inner ring to the radius of the outer ring.
  • an increasing number of air guide channels 211 can be provided, which can increase the flow of gas through the channels.
  • the plurality of air guide channels 211 are arranged in a circular array, that is, the distance between two adjacent air guide channels 211 located in the same circle is equal.
  • the air guide element 21 meets at least one of the following conditions: (1) The diameter D3 of the air guide element 21 is: 4mm ⁇ D3 ⁇ 8mm; (2) The diameter D3 of the air guide element 21 is: 6mm ⁇ D3 ⁇ 7mm; (3) The cross-sectional area S1 of the air guide element 21 is: 10mm 2 ⁇ S1 ⁇ 50mm 2 ; (4 ) The cross-sectional area S1 of the air guide element 21 is: 25mm 2 ⁇ S1 ⁇ 35mm 2 ; (5) The axial length L1 of the air guide element 21 is: 5mm ⁇ L1 ⁇ 10mm; (6) The axial direction of the air guide element 21 The length L1 is: 7mm ⁇ L1 ⁇ 9mm.
  • the cross-sectional area of the air guide element 21 is the same as the cross-sectional area of the second chamber 112, so that the air guide element 21 covers the aerosol-generating product 2000 contained in the second chamber 112 as much as possible.
  • the air inlet end ensures that the air flow heated by the air guide element 21 has a large heating area for the aerosol-generating product 2000. Since the cross-sectional area of the first chamber 111 is larger than the cross-sectional area of the second chamber 112 , the heating element 22 can be disposed circumferentially outside the air guide element 21 .
  • the air guide element 21 includes a first air guide block 213 and a second air guide block 214 .
  • the first air guide block 213 is provided with a first groove 2131
  • the second air guide block 214 is provided with a second groove 2141.
  • the first groove 2131 Together with the second groove 2141, the above-mentioned second mounting groove 212 is enclosed.
  • the gas guide element 21 adopts a split design, which can help the temperature measuring element 30 to be more easily installed in the second installation groove 212 and improve the assembly efficiency of the heating device 100.
  • the two or more first installation slots 215 are arranged around the center of the air guide element 21 , that is, the first installation slot 215 is located between the center of the air guide element 21 and the air guide element 21 .
  • the heating element 22 can be installed in each first installation groove 215 between the edges of the element 21 .
  • the heating element 22 can quickly heat the air guide element 21, and the degree of heating between the center and the edge of the air guide element 21 is relatively uniform.
  • the first mounting groove 215 can be configured as a through groove or a blind groove according to actual conditions.
  • the second installation area 217 is not in contact with the inner surface of the inner tube portion 12 of the insulation assembly 10 .
  • a gap is formed between the second installation area 217 and the inner tube part 12, which can reduce the contact area between the air guide element 21 and the inner tube part 12, and prevent the heat of the air guide element 21 from being transferred to the inner tube part 12 of the insulation assembly 10 too quickly.
  • the second installation area 217 can be used to install the heating element 22.
  • the heating element 22 is sleeved on the outer surface of the second installation area 217 to heat the air guide element 21 from the outside to the inside.
  • the heating element 22 includes a metal heating mesh 221 or an FPC (Flexible Printed Circuit) heating film 222.
  • the metal heating mesh 221 or the FPC heating film 222 is at least partially surrounding the outer peripheral surface of the air guide element 21.
  • the metal heating mesh 221 or the FPC heating film 222 is electrically connected to the external power supply.
  • the external power supply affects the metal heating mesh 221 or the FPC heating film 222
  • the FPC heating film 222 is powered, the metal heating mesh 221 or the FPC heating film 222 can generate heat, thereby heating the air guide element 21 .
  • the surface of the metal heating mesh 221 and the surface of the FPC heating film 222 are both oxidized or electrically insulated, so that the metal heating mesh 221 Or the FPC heating film 222 only conducts heat to the outside but does not conduct electricity.
  • the first insulating layer 224 and the second insulating layer 225 are both used to electrically insulate the resistance heating element 223 to prevent the electric energy from the external power supply from being transmitted to the air conductive element 21 or the thermal insulation component 10 causing leakage, thereby improving the safety of the heating device 100 .
  • the first insulating layer 224 and the second insulating layer 225 also have viscosity to fix the resistance heating element 223 and the gas conducting element 21 in the first chamber 111 of the receiving cavity 11 .
  • the first insulation layer 224 fixes the air-conducting element 21 to the resistance heating element 223
  • the second insulation layer 225 fixes the resistance heating element 223 to the inner tube part 12 of the heat preservation component 10 .
  • the heating element 22 includes an induction coil 226 , the induction coil 226 is sleeved on the circumferential outer surface of the air guide element 21 , and the induction coil 226 is electrically connected to an external power source.
  • the external power supply supplies power to the induction coil 226, the induction coil 226 generates an alternating magnetic field.
  • the air-guiding element 21 with good magnetic permeability is located in the alternating magnetic field, it can generate heat, thereby regulating the airflow flowing through the air-guiding element 21. heating.
  • the heating element 22 further includes a magnetic field shielding layer 228 .
  • the magnetic field shielding layer 228 is disposed between the induction coil 226 and the inner tube portion 12 of the insulation assembly 10 .
  • the magnetic field shielding layer 228 is used for shielding.
  • the alternating magnetic field generated by the energized induction coil 226 affects the inner tube portion 12 and reduces the heat generated in the inner tube portion 12 .
  • the heating element 22 includes a heating element 229 .
  • fever The heating element 229 is arranged in the first installation slot 215.
  • the heating element 229 is a resistance-heating columnar body.
  • the heating element 229 is electrically connected to an external power supply.
  • the heating element 229 is arranged in the first installation slot 215.
  • the heating element 229 is in a point-ray shape.
  • the heating element 229 is spirally formed by a resistance heating wire, or the heating element 229 is cylindrical with a ventilation air gap.
  • the hollow state of the heating element 229 can facilitate the flow of gas in the first installation groove 215 and increase the airflow and air gap.
  • the temperature measuring element 30 adopts the TCR (Temperature Coefficient of Resistance) temperature measurement method. Take a temperature measurement.
  • the temperature measuring element 30 can also use NTC (Negative Temperature Coefficient), thermistor, or thermocouple to measure temperature.
  • the heating element 22 is a heating circuit coating 230.
  • the heating circuit coating 230 is coated on the inner wall surface of the inner tube portion 12.
  • the heating circuit coating 230 is connected to the outside world through wires. Power supply electrical connection.
  • the outer peripheral surface of the air guide element 21 is at least partially in contact with the heating circuit coating 230, and the heating circuit coating 230 is used to heat the air guide element 21.
  • the heating circuit coating 230 has the characteristics of thin coating and high heating efficiency, which can reduce the volume of the airflow heating component 20.
  • the heating circuit coating 230 is directly coated on the inner surface of the inner tube part 12 and becomes integrated with the insulation component 10. , can reduce the number of parts and make installation more convenient.
  • the above-mentioned heating circuit coating 230 is coated on the inner wall surface of the first chamber 111 , and the above-mentioned heating circuit coating 230 is not coated on the inner wall surface of the second chamber 112 . Since the thermal conductivity of the air guide element 21 is high, coating the heating circuit coating 230 on the inner wall of the first chamber 111 can have a higher thermal conductivity, less heat loss and a short heating time. However, if the inner wall of the first chamber 111 is The inner wall surface of the chamber 112 is provided with a heating circuit coating 230. The thermal conductivity of the circumferential outer surface of the aerosol-generating product is low, and the heat loss of the heating element 22 is greater. Although it is helpful to heat the aerosol-generating product, it will increase The power consumption of the heating element 22.
  • the airflow heating assembly 20 further includes a first thermal insulation member 23 .
  • the first heat insulating member 23 is disposed in the first installation area 216.
  • the air guide element 21 covered with the first heat insulating member 23 is installed on the inner tube portion 12 of the insulation assembly 10, the inner and outer sides of the first heat insulating member 23 The two sides are in contact with the inner surfaces of the air guide element 21 and the inner tube part 12 respectively. Under the action of friction between the first heat insulator 23 and the inner tube part 12, the air guide element 21 is fixed to the inner tube part 12.
  • the first heat insulating member 23 is made of ZrO2 (zirconium dioxide) material and its compounds.
  • the first heat insulating member 23 at least has the characteristics of high temperature resistance, low thermal conductivity and corrosion resistance.
  • the first heat insulating member 23 may also be made of metal and/or non-metal and compound heat insulating materials.
  • the first mounting area 216 of the air guide element 21 contacts the inner surface of the first heat insulating member 23 to form line contact or point contact, thereby reducing the contact area.
  • the heat transferred by the air guide element 21 directly to the first heat insulating member 23 is less than the heat transferred by the first installation area 216 directly contacting the inner surface of the first heat insulating member 23, which can effectively reduce The heat of the air guide element 21 is dissipated, thereby improving thermal efficiency.
  • the outer surface of the first heat insulating member 23 may also be provided with a first protrusion 2161 , so that when the outer surface of the first heat insulating member 23 abuts against the inner surface of the inner tube portion 12 , a line is formed. Contact or point contact reduces the contact area. Compared with the solution in which the first protrusion 2161 is only provided in the first installation area 216, the first protrusion 2161 is also provided on the outer surface of the first heat insulator 23. This further reduces the heat dissipation of the air guide element 21 . Of course, the solution of only providing the first protrusion 2161 on the outer surface of the first heat insulating member 23 is also within the protection scope of the present application. In some embodiments, the first protrusions 2161 can be directly disposed on the inner and outer surfaces of the first heat insulating member 23 to facilitate manufacturing the first heat insulating member 23 .
  • the first heat insulation component 23 includes a first split component 231 and a second split component 232 .
  • the first split piece 231 covers part of the first installation area 216
  • the second split piece 232 covers part of the first installation area 216.
  • the first split piece 231 and the second split piece 232 are assembled and used to install the air guide.
  • the first separate piece 231 and the second separate piece 232 may not completely cover the first installation area 216 after being spliced, but may partially cover the first installation area 216 .
  • the main purpose of providing the first split piece 231 and the second split piece 232 is to facilitate the installation and removal of the first heat insulation piece 23 and the air guide element 21 . It is worth noting that in other embodiments, the first heat insulating component 23 can be divided into three or more separate components.
  • the heating element 22 heats the air guide element 21 or the air guide element 21 self-heats to generate heat under the action of the heating element 22, and the airflow flowing through the conductor channel of the air guide element 21 is heated. , the heated airflow enters the interior of the aerosol-generating product 2000 from the air inlet end of the aerosol-generating product 2000 for heating.
  • the inner tube portion 12 of the insulation component 10 is heated by the heating component and has a certain amount of heat.
  • the heat of the inner tube part 12 can be transferred to part of the circumferential outer surface of the aerosol-generating product 2000, assisting the aerosol-generating product 2000. Heating so that the aerosol-generating article 2000 is heated more uniformly.
  • the heating device 100 in the embodiment of the present application includes a heat preservation component 10 and an airflow heating component 20.
  • the heat preservation component 10 is provided with a receiving cavity 11.
  • the receiving cavity 11 is used to accommodate the aerosol-generating product 2000.
  • the airflow heating component 20 is disposed in the receiving cavity 11.
  • the airflow heating assembly 20 is used to heat the gas flowing through the airflow heating assembly 20, so that the heated gas heats the aerosol-generating product 2000 placed in the receiving chamber 11.
  • the inner surface of the thermal insulation component 10 is close to the circumferential outer surface of the aerosol-generating product 2000, and the heat from the inner wall surface of the thermal insulation component 10 can be transferred to the circumferential outer surface of the aerosol-generating product 2000 for auxiliary heating, effectively Utilizes the heat of the insulation component 10 to The axial outer surface of the sol-generating article 2000 is heated, and the parts of the heating device 100 are reduced.
  • This application also provides an aerosol generating device 1000, which includes a housing 200, a circuit device 300, a sheath 400 and the above-mentioned heating device 100.
  • the sheath 400 is placed on the outside of the heating device 100, and the sheath 400 is used to accommodate and support the heating device 100.
  • the circuit device 300, the sheath 400 and the heating device 100 are all housed in the casing 200.
  • the circuit device 300 is electrically connected to the heating device 100.
  • the circuit device 300 is used to provide electrical energy to the heating device 100 so that the heating device 100 can heat the aerosol to generate Products 2000.
  • the housing 200 is used to accommodate and secure the circuit device 300 and the sheath 400 .
  • the housing 200 is provided with a receiving space 201, a first insertion interface 202, a partition 203 and a fourth through hole 204.
  • the partition 203 is disposed in the receiving space 201, and the partition 203 divides the receiving space 201 into a first cavity 2011 and a second cavity 2012 distributed up and down.
  • the first cavity 2011 is used to receive the sheath 400 and parts of the heating device 100 and the circuit device 300 .
  • the second cavity 2012 is used to receive a portion of the circuit device 300 .
  • the first plug-in interface 202 is provided on the side wall of the housing 200 and connects the first cavity 2011 with the outside world, and the first plug-in interface 202 is connected with the receiving cavity 11 of the heat preservation component 10 in the heating device 100.
  • An insertion interface 202 is used for the external aerosol-generating product 2000 to be inserted into or pulled out of the receiving cavity 11 of the heat preservation component 10 in the heating device 100 .
  • a sealing process is performed between the first cavity 2011 and the second cavity 2012 to improve the airtightness of the second cavity 2012 and reduce the risk of the circuit device 300 contained in the second cavity 2012 being exposed to the outside world. Or the possibility that the gas of the heating device 100 affects the working performance.
  • the fourth through hole 204 is provided on the side wall of the housing 200 .
  • the fourth through hole 204 connects the first cavity 2011 to the outside world.
  • the fourth through hole 204 is used to expose part of the circuit device 300 so that the external power supply can communicate with the circuit device 300 Make electrical connections.
  • the fourth through hole 204 is also used to allow external air to enter the first cavity 2011 and thereby enter the heating device 100 to be heated.
  • the circuit device 300 includes a PCB circuit board 301, a battery module 302 and a charging interface 303.
  • the PCB circuit board 301 and the charging interface 303 are both disposed in the first cavity 2011, and the charging interface 303 is exposed at the fourth through hole 204.
  • the battery module 302 is disposed in the second cavity 2012.
  • PCB circuit board 301 They are electrically connected to the heating element 22, temperature measuring element 30, battery module 302 and charging interface 303 in the heating device 100 respectively.
  • the PCB circuit board 301 is used for parameter control and data collection of the heating element 22 and the temperature measuring element 30.
  • the battery The module 302 is used to provide electric energy to the heating element 22 and the temperature measuring element 30, and the charging interface 303 is used to be plugged into an external power connector to charge the battery module 302 or directly use an external power source to charge the heating element 22 and measure the temperature. Element 30 provides electrical energy.
  • the charging interface 303 may not be provided, and the battery module 302 may use a removable lithium battery or the like.
  • the number of PCB circuit boards 301 is two or more, two or more PCB circuit boards 301 are stacked in parallel and arranged in the first cavity 2011, and the PCB circuit boards 301 and the sheath 400 are in The first cavity 2011 is distributed left and right, so that the layout of the PCB circuit board 301 and the sheath 400 is more reasonable.
  • the first cavity 2011 and the second cavity 2012 can be sealed according to actual needs to prevent the gas guide element 21 in the first cavity 2011 from heating the aerosol-generating article 2000 to generate gas. Entering the second cavity 2012 affects the working performance of the battery module 302 .
  • the sheath 400 includes an upper housing 402 and a lower housing 403.
  • the upper housing 402 and the lower housing 403 together enclose a first installation cavity 401.
  • the installation cavity 401 is used to accommodate the heating device 100 and for the aerosol-generating product 2000 to be plugged in.
  • the end of the upper housing 402 facing away from the lower housing 403 is also provided with a second plug-in interface 4021.
  • the second plug-in interface 4021 connects the first installation cavity 401 with the outside world, and the second plug-in interface 4021 is directly connected with the first plug-in interface 202. This allows the external aerosol-generating product 2000 to enter the first installation cavity 401 through the first insertion port 202 and the second insertion port 4021, and thereby enter the receiving cavity 11 of the heat preservation component 10 in the heating device 100.
  • the inner surface of the first installation cavity 401 is provided with a first convex rib 4011, a step surface 4012 and a second convex rib 4013.
  • the number of the first protruding ribs 4011 is at least one.
  • the at least one first protruding rib 4011 extends from the second insertion port 4021 toward the bottom of the first installation cavity 401.
  • the first protruding ribs 4011 are used for inserting the first protruding ribs 4011 into the first mounting cavity 401.
  • the lower housing 403 is provided with a second installation cavity 4031 and a first through hole 4032.
  • the second installation cavity 4031 is provided outside the lower housing 403.
  • the first through hole 4032 penetrates the side wall of the lower housing 403 to penetrate the first installation cavity 401 and the second installation cavity 4031.
  • the second installation cavity 4031 is used for receiving PCB circuit board 301
  • the first through hole 4032 is used for the cables connecting the PCB circuit board 301 and the heating element 22 and the temperature measuring element 30 in the heating device 100 to pass through, and/or for external air to pass through the fourth through hole 204
  • After entering the second installation cavity 4031 it then enters the bottom of the first installation cavity 401 from the second installation cavity 4031 to enter the air guide element 21 to complete being heated.
  • the upper housing 402 and the lower housing 403 may be integrally formed.
  • the aerosol generation device 1000 also includes an end cover 500.
  • the end cover 500 is disposed at the bottom of the first installation cavity 401, and both ends of the end cover 500 are connected to the heating device respectively.
  • the air guide element 21 of 100 is in contact with the second rib 4013.
  • the end cover 500 is made of a material with low thermal conductivity.
  • the end cover 500 is used to prevent the air guide element 21 from directly contacting the bottom of the first installation cavity 401 and transferring heat to the lower housing 403 too quickly.
  • the end cover 500 is provided with a second through hole 501 and a third rib 502.
  • the second through hole 501 is used to allow the gas at the bottom of the cavity to circulate to the gas conductor 21, and to connect the PCB circuit board 301 and the heating element in the heating device 100. 22 and the cables of the temperature measuring element 30 pass through.
  • double heat insulation is performed by arranging the second heat insulator 600 and the end cover 500 between the air guide element 21 and the bottom of the first installation cavity 401, and the second heat insulator 600 is connected with the air guide element 21.
  • it can enable the sheath 400 to operate in a relatively long time.
  • Working in a low temperature environment effectively extends the service life of the sheath 400.
  • it can effectively reduce the heat loss of the air guide element 21 and improve the thermal efficiency of the air guide element 21.
  • the second heat insulating member 600 and the end cover 500 may be integrally formed.
  • the aerosol generation system 10000 includes an aerosol generation article 2000 and the above-mentioned aerosol generation device 1000.
  • the aerosol generating device 1000 is used for plugging in the aerosol generating product 2000.
  • the aerosol generating device 1000 heats the aerosol generating product 2000 to generate smoke for the user to inhale.
  • the aerosol-generating article 2000 at least includes a tobacco section 2001, a cooling section 2002, and a cigarette holder section 2003.
  • the heating device 100a includes a tubular body 10a, an airflow channel 30a and an airflow heating component 20a.
  • the tubular body 10a has an accommodating cavity inside, which is used to receive at least part of the aerosol-generating product 2000.
  • the air flow channel 30a is in fluid communication with the accommodating cavity, and air enters the accommodating cavity through the air flow channel.
  • air enters the accommodation cavity from the distal end of the accommodation cavity; it can be understood that in other examples, air can also enter the accommodation cavity from the middle area of the accommodation cavity.
  • the airflow heating assembly 20a is disposed in the airflow channel 30a, and the air flowing through the airflow channel 30a flows through the airflow heating assembly 20a, so that the airflow heating assembly 20a can heat Air flowing through the airflow channel 30a; in other examples, the airflow channel is located outside the tubular body, at least a portion of the airflow channel may be defined by an airway tube, the airflow heating component may be located within the airflow channel, or the airflow heating component may surround the airflow channel. Pipe setting.
  • the airflow heating assembly 20a is configured to heat the air flowing through the airflow channel 30a into a hot airflow.
  • the hot airflow can flow into the interior of the aerosol-generating article 2000 from the far end of the aerosol-generating article 2000 to heat the airflow in the aerosol-generating article 2000.
  • Tobacco segments generate aerosols.
  • the hot air flow can flow into the interior of the aerosol-generating article 2000 from the side wall of the aerosol-generating article 2000 .
  • the accommodation cavity therein includes a first accommodation cavity 114a and a second accommodation cavity 115a.
  • the first accommodating cavity 114a is located downstream of the second accommodating cavity 115a; with the proximal end of the tubular body 10a as a reference point, the second accommodating cavity 115a is arranged adjacent to the distal end of the first accommodating cavity 114a .
  • Both the first accommodation cavity 114a and the second accommodation cavity 115a are capable of accommodating part of the aerosol-generating article 2000, wherein the accommodation inner diameter of the second accommodation cavity 115a is greater than the accommodation radius of the first accommodation cavity 114a.
  • the hot air flows through the aerosol-generating article 2000 located in the second accommodation chamber 115a and then flows into the aerosol-generating article 2000 located in the first accommodation chamber 114a, so that the tubular body
  • the temperature of the wall delimiting the second receiving chamber 115a in the tubular body 10a is higher than the temperature of the wall delimiting the first receiving chamber 114a in the tubular body 10a.
  • the first tubular body 11a includes a heat insulating material surrounding the periphery of the first tubular body 11a.
  • the tubular body 10a further includes a second tubular body 12a.
  • the second tubular body 12a is disposed on the periphery of the first tubular body 11a, and the first tubular body 11a is connected with the second tubular body 11a.
  • a cavity 13a is formed between the bodies 12a.
  • the first tubular body 11a is used to receive and secure at least part of the aerosol-generating article, and the cavity 13a is used to reduce heat transfer from the first tubular body 11a to the second tubular body 12a.
  • the cavity 13a can form a negative pressure heat insulation layer or a gas heat insulation layer, that is, the cavity 13a is in a vacuum negative pressure state, or is filled with gas.
  • the air pressure in the cavity 13a can be less than or equal to the external atmospheric pressure, or can be less than or equal to a standard atmospheric pressure;
  • the gas filled in the cavity 13a can be a certain gas, for example, it can be pure carbon dioxide, pure nitrogen or pure argon, etc. ;
  • the gas filled in the cavity 13a may be a mixed gas composed of multiple gases; the gas filled in the cavity 13a may be air.
  • the cavity 13a can also be filled with thermal insulation material.
  • the first tubular body 11a may contain metal.
  • the first tubular body 11a includes a first part 112a and a second part 113a.
  • the first part 112a encloses and defines a first accommodation cavity 114a.
  • the first part 112a is also provided with a first opening 111a.
  • the first opening 111a communicates the first accommodation cavity 114a with the outside world.
  • the second part 113a encloses and defines a second accommodation cavity 115a.
  • the first accommodation cavity 114a and the second accommodation cavity 115a are in airflow communication.
  • the aerosol-generating product is inserted into the first accommodation cavity 114a and the second accommodation cavity 115a from the first opening 111a. .
  • the temperature of the second part 113a may be higher than the temperature of the first part 112a.
  • the inner diameter of the second part 113a is larger than the inner diameter of the first part 112a, so that there is a gap between the outer peripheral surface of the aerosol-generating article 2000 and the second part 113a, and the gap prevents the second part 113a from transmitting heat to the aerosol-generating article 2000.
  • the first part 112a can be attached to the outer peripheral surface of the aerosol-generating article 2000 to clamp the aerosol-generating article 2000, thereby helping to keep the aerosol-generating article 2000 inside the tubular body 10a.
  • the tubular body 10a or the first tubular body 11a includes a heating part, which may be an electric heating part.
  • the heating part includes a resistive material, and the resistive material can generate Joule heat when energized, or, for example,
  • the inner part contains an infrared coating, which can radiate infrared rays to the accommodation cavity when energized.
  • the heating part enables the tubular body 10a or the first tubular body 11a to generate heat, so that the tubular body 10a or the first tubular body 11a can interact with the airflow heating assembly 20a. Cooperate with each other to jointly heat the aerosol-generating product 2000 contained in the containing cavity.
  • the extension length L4 of the second accommodation cavity 115a satisfies: 2mm ⁇ L4 ⁇ 3mm.
  • the extension length L4 of the second accommodation cavity 115a may be 2.3 mm, 2.5 mm, 2.8 mm, etc.
  • the difference between the inner diameter D2 of the second part 113a and the inner diameter D1 of the first part 112a satisfies: 0.6mm ⁇ D2-D1 ⁇ 1mm.
  • the wall thickness of the first part 112a and the second part 113a is the same, and the first tubular body 11a can be partially formed through a shaping process to form a shape opposite to the first part 112a along the radial direction of the first tubular body 11a.
  • the second portion 113a is arched outward, or forms a first portion 112a that is tightened inward relative to the second portion 113a in the radial direction of the first tubular body 11a.
  • the first tubular body 11a can be made of metal. , thereby facilitating the punching process of the first tubular body 11a, such as punching outward to form an outwardly arched second portion 113a, or punching inward to form an inwardly tightened first portion 112a.
  • first tubular body 11a and the second tubular body 12a can also be formed by other suitable processes such as injection molding and casting.
  • the second tubular body 12a can also be made of metal, so that the proximal end of the first tubular body 11a and the proximal end of the second tubular body 12a can be connected by welding, and the distal end of the first tubular body 11a and The distal end of the second tubular body 12a can also be connected by welding, which helps to form a sealed cavity 13a between the first tubular body 11a and the second tubular body 12a.
  • the inner wall surface of the tubular body 10a is also provided with a second protrusion 14a, and the second protrusion 14a is located between the airflow heating assembly 20a and the second housing. Between the cavities 115a, and the proximal end of the airflow heating component 20a is in contact with the second protrusion 14a, so as to facilitate the fixed installation of the airflow heating component 20a inside the tubular body 10a.
  • the minimum inner diameter of the second protrusion 14a is greater than or equal to the inner diameter of the first accommodation cavity 114a.
  • the second protrusion 14a can be a continuous annular second protrusion 14a, or can be a circumferentially spaced protrusion, therefore, the minimum inner diameter of the second protrusion 14a only needs to be greater than or equal to the inner diameter of the first accommodation cavity 114a. That’s it.
  • the second protrusion 14a forms a line contact with the outer peripheral surface of the end of the aerosol-generating product. Compared with surface contact, the line contact design can The heat transferred directly from the second convex portion 14a to the end of the aerosol-generating product is effectively reduced.
  • the second protrusion 14a When the minimum inner diameter of the second protrusion 14a is larger than the accommodation inner diameter of the first accommodation cavity 114a, the second protrusion 14a does not come into contact with the end of the aerosol-generating product, and the direct air flow from the second protrusion 14a can be further reduced.
  • the sol generates heat transferred from the end of the article.
  • the airflow heating assembly 20a includes a third heat insulating member 21a and an airflow heating member 22a.
  • the third heat insulating member 21a is disposed at the proximal end of the airflow heating member 22a, and the third heat insulating member 21a is disposed at the proximal end of the airflow heating member 22a.
  • the proximal end of the heat insulator 21a is in contact with the second convex portion 14a.
  • the airflow heating element 22a is configured to heat the air in the airflow channel 30a to form a hot airflow, and the third heat insulating element 21a is used to reduce the heat directly transferred by the airflow heating element 22a to the tubular body 10a.
  • the third heat insulating member 21 a is close to The end is also provided with a support part 211a.
  • the number of the support part 211a may be one or multiple.
  • the plurality of support parts 211a are spaced apart so that the hot air flow can flow to the aerosol-generating product through the gaps between the support parts 211a.
  • the ends are heated.
  • the third heat insulating member 21a may be made of heat insulating material, for example, the third heat insulating member 21a may be ceramic.
  • the end of the aerosol-generating article 2000 inserted into the second accommodating cavity 115a is not in direct contact with the tubular body 10a.
  • the end of the aerosol-generating product 2000 is directly heated by hot air to make the heating effect more uniform, avoid local overheating and smoke burning at the end of the aerosol-generating product 2000, and effectively improve the generated aerosol. Sol quality.
  • the aerosol generating device includes the above-mentioned heating device 100a and a power supply component.
  • the power supply component may include any power supply that can provide electric energy for heating the heating device 100a.
  • the power supply may be any suitable battery core.
  • the power supply component may also include a control board.
  • the power supply may be electrically connected to the heating device 100a through the control board.
  • the control board may control the gas.
  • the operation of the sol generating device includes, but is not limited to, controlling the heating power, heating current or heating voltage of the heating device 100a.

Landscapes

  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

L'invention concerne un dispositif de chauffage (100), un dispositif de génération d'aérosol (1000) et un système de génération d'aérosol (10000). Le dispositif de chauffage (100) comprend un ensemble de conservation de chaleur (10) et un ensemble de chauffage à écoulement d'air (20) ; l'ensemble de conservation de chaleur (10) est intérieurement pourvu d'une cavité de réception (11), et la cavité de réception (11) est utilisée pour recevoir un produit de génération d'aérosol (2000) ; et l'ensemble de chauffage à écoulement d'air (20) est disposé dans la cavité de réception (11), et l'ensemble de chauffage à écoulement d'air (20) est utilisé pour chauffer le gaz s'écoulant dans l'ensemble de chauffage à écoulement d'air (20), de telle sorte que le gaz chauffé puisse chauffer le produit de génération d'aérosol (2000) placé dans la cavité de réception (11). Lorsque le produit de génération d'aérosol (2000) est placé dans la cavité de réception (11), la chaleur de la surface de paroi interne de l'ensemble de conservation de chaleur (10) peut être transférée vers la surface externe circonférentielle du produit de génération d'aérosol (2000) pour un chauffage auxiliaire, de telle sorte que la chaleur de l'ensemble de conservation de chaleur (10) soit efficacement utilisée, et que des parties du dispositif de chauffage (100) soient réduites.
PCT/CN2023/106156 2022-07-08 2023-07-06 Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol WO2024008162A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210800951.1 2022-07-08
CN202210800951.1A CN117397876A (zh) 2022-07-08 2022-07-08 加热装置、气溶胶生成装置及气溶胶生成系统
CN202320733081.0 2023-03-24
CN202320733081.0U CN219556334U (zh) 2023-03-24 2023-03-24 加热机构及气溶胶生成装置

Publications (1)

Publication Number Publication Date
WO2024008162A1 true WO2024008162A1 (fr) 2024-01-11

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WO (1) WO2024008162A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2534213A (en) * 2015-01-19 2016-07-20 Ngip Res Ltd Aerosol-generating device
CN108323823A (zh) * 2018-04-17 2018-07-27 威滔电子科技（深圳）有限公司 一种改进气流的气溶胶发生系统和气溶胶发生装置
CN111772246A (zh) * 2020-08-03 2020-10-16 惠州市沛格斯科技有限公司 加热模组及发烟装置
CN216601677U (zh) * 2021-12-31 2022-05-27 深圳华宝协同创新技术研究院有限公司 一种电操作气溶胶生成系统
CN216701668U (zh) * 2021-11-19 2022-06-10 深圳市合元科技有限公司 气溶胶生成装置
CN217986691U (zh) * 2022-07-08 2022-12-09 深圳市合元科技有限公司 加热装置、气溶胶生成装置及气溶胶生成系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2534213A (en) * 2015-01-19 2016-07-20 Ngip Res Ltd Aerosol-generating device
CN108323823A (zh) * 2018-04-17 2018-07-27 威滔电子科技（深圳）有限公司 一种改进气流的气溶胶发生系统和气溶胶发生装置
CN111772246A (zh) * 2020-08-03 2020-10-16 惠州市沛格斯科技有限公司 加热模组及发烟装置
CN216701668U (zh) * 2021-11-19 2022-06-10 深圳市合元科技有限公司 气溶胶生成装置
CN216601677U (zh) * 2021-12-31 2022-05-27 深圳华宝协同创新技术研究院有限公司 一种电操作气溶胶生成系统
CN217986691U (zh) * 2022-07-08 2022-12-09 深圳市合元科技有限公司 加热装置、气溶胶生成装置及气溶胶生成系统

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