WO2022241931A1 - 加热模组及包括该加热模组的发烟装置 - Google Patents

加热模组及包括该加热模组的发烟装置 Download PDF

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Publication number
WO2022241931A1
WO2022241931A1 PCT/CN2021/105773 CN2021105773W WO2022241931A1 WO 2022241931 A1 WO2022241931 A1 WO 2022241931A1 CN 2021105773 W CN2021105773 W CN 2021105773W WO 2022241931 A1 WO2022241931 A1 WO 2022241931A1
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WO
WIPO (PCT)
Prior art keywords
heating
heating module
storage body
heat storage
cigarette
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PCT/CN2021/105773
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English (en)
French (fr)
Inventor
晏华斌
杞瑞
Original Assignee
惠州市沛格斯科技有限公司
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Publication of WO2022241931A1 publication Critical patent/WO2022241931A1/zh

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • 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

Definitions

  • the invention relates to the field of heat-not-burn smoking appliances, in particular to a heating module and a smoking device including the heating module.
  • HNB smoking devices release nicotine and smoke from tobacco by heating tobacco at low temperature.
  • the temperature of low-temperature heating is generally about 300°C, which is far lower than the combustion temperature of combustion-type cigarettes above 800°C.
  • the content of harmful substances in the smoke released by tobacco is much lower than that of burning cigarettes, thereby greatly reducing the harm of tobacco products to the human body.
  • Existing heating methods for heat-not-burn smoking appliances mainly include peripheral heating and central heating.
  • the cup containing the cigarettes can heat the cigarettes at a low temperature from the periphery.
  • a heating plate or heating needle is inserted into the cigarette and heats at low temperature from the center of the cigarette.
  • the peripheral heating method or the central heating method is adopted, there is a problem of uneven heating.
  • the part of the cigarette close to the cup is heated more fully, while the part away from the cup (the central part of the cigarette) is often not fully heated.
  • the part of the cigarette center close to the heating sheet or the heating needle is more fully heated, while the part far away from the heating sheet or heating needle (the peripheral part of the cigarette) often cannot be fully heated.
  • This problem of uneven heating leads to the insufficient release of nicotine in the tobacco, which affects the user's smoking experience.
  • the present invention provides a heating module and a smoking device including the heating module, in order to solve the above technical problems.
  • a heating module for a smoking device comprising:
  • the first heating assembly includes a cup for accommodating cigarettes and a first heating element for heating the cup;
  • the second heating assembly includes a heat storage body for heating air and a second heating element for heating the heat storage body;
  • a connecting piece is tubular and made of heat insulating material, the connecting piece is connected between the first heating component and the second heating component, so that when the user smokes the cigarette in the smoking cup, the external air flows through the heat storage in sequence body, connectors and cups.
  • the second heating assembly further includes a heat storage body fixing sleeve, the heat storage body is arranged in the heat storage body fixing sleeve, and the connecting piece is connected between the tobacco cup and the heat storage body fixing sleeve .
  • the height of the connecting piece is between 3mm and 8mm.
  • the height of the tobacco cup is between 10mm and 26mm.
  • the connecting member is made of a material with a thermal conductivity not greater than 2.2 W/m ⁇ k.
  • the connecting piece is made of plastic material or ceramic material.
  • the plastic material includes polyether ether ketone.
  • the inner diameter of the connector is greater than or equal to the inner diameter of the cigarette cup, so that when the cigarette is inserted into the cup, a part of the end of the cigarette is located in the connector.
  • the tobacco cup is made of metal material
  • the first heating element is a heating net or heating wire arranged on the outer surface of the tobacco cup
  • the surface of the tobacco cup is insulated.
  • the first heating assembly further includes a temperature sensing device arranged on the outer surface of the tobacco cup.
  • the first heating assembly further includes a heat-shrinkable tube sheathed on the outside of the first heating element, so that the first heating element is in close contact with the outer surface of the tobacco cup.
  • the heating module further includes an upper bracket and a top cover, and the tobacco cup is connected to the top cover through the upper bracket.
  • the second heating element is disposed inside the heat storage body, and the heat storage body is cylindrical and provided with a plurality of airflow channels in the height direction.
  • the second heating element is a heating wire and is sealed inside the heat storage body.
  • the second heating assembly further includes a heat storage body bracket and a heat storage body heat insulating piece, the heat storage body heat insulation piece is sleeved around the heat storage body, and the heat storage body is fixed on the The heat storage body is fixed in the casing.
  • the heating module further includes a lower bracket and an air inlet part, and the second heating assembly is connected to the air inlet part through the lower bracket, so that the heat storage body communicates with the air inlet.
  • the heating module further includes an inner heat insulation member of the heating module, and the inner heat insulation member of the heating module is sheathed on the outside of the first heating assembly, the connecting piece and the second heating assembly.
  • the heating module further includes a heating module fixing sleeve, and the heating module fixing sleeve is sleeved on the outside of the top cover, the inner heat insulation member of the heating module and the air inlet component.
  • the heating module further includes an outer heat insulation member of the heating module, and the outer heat insulation member of the heating module is sheathed outside the fixing sleeve of the heating module.
  • the outer thermal insulation of the heating module and the inner thermal insulation of the heating module are made of materials with a thermal conductivity not greater than 0.2W/m ⁇ k.
  • the outer thermal insulation of the heating module and the inner thermal insulation of the heating module are made of glass fiber, airgel or glass beads.
  • the present invention also provides a smoking device, comprising any heating module described above.
  • the smoking device further includes a control circuit for controlling the first heating component and the second heating component, and the control circuit is configured to, during the preheating phase of the smoking device, Initiating heating of the second heating assembly a predetermined time interval after the initiation of heating of the first heating assembly.
  • the predetermined time interval is between 7 seconds and 20 seconds.
  • the heating module of the present invention uses the first heating assembly (peripheral heating assembly) and the second heating assembly (air heating assembly) to simultaneously heat the cigarettes around and air, thereby improving the heating uniformity of the cigarettes and improving the quality of the cigarettes. Air quality and smoke volume.
  • the tubular connecting piece directly connects the first heating component and the second heating component, which can not only simplify the connection structure between the first heating component and the second heating component, but also achieve good heat insulation effect.
  • the temperature of the surrounding heating of the first heating component and the temperature of air heating of the second heating component can be independently controlled, so as to improve the quality of smoke and the amount of smoke , improving the user experience of the smoking device.
  • FIG. 1 is a cross-sectional view of a heating module according to an embodiment of the present invention.
  • Fig. 2 is an exploded schematic view of the heating module shown in Fig. 1;
  • FIG. 3 is a state diagram of the assembly process of the first heating assembly in the heating module according to an embodiment of the present invention
  • FIG. 4 is a cross-sectional view of a second heating assembly in a heating module according to an embodiment of the present invention.
  • 5A to 5D are schematic diagrams of a heat storage body for a second heating element
  • Fig. 6 is a pre-assembled state diagram of the first heating assembly, the connecting piece and the second heating assembly of the heating module according to the embodiment of the present invention
  • Fig. 7 is a cross-sectional view of a smoking device according to an embodiment of the present invention.
  • the heating module for the smoking device heats the cigarettes in a mixed heating manner, so that the cigarettes are evenly heated and the smoking effect is improved.
  • Hybrid heating methods include perimeter heating and air heating.
  • the peripheral heating is to directly heat the cigarette from the periphery of the cigarette through the heating components around the cigarette, and the air heating is to make the heated air flow through the cigarette to heat the tobacco in the cigarette.
  • the heating module according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 6 .
  • a heating module for a smoking device includes: a first heating assembly (peripheral heating assembly), a second heating assembly (air heating assembly) and a connecting piece 7 .
  • the first heating assembly includes a tobacco cup 3 for accommodating cigarettes and a first heating element 4 for heating the tobacco cup.
  • the second heating assembly includes a heat storage body 10 for heating air and a second heating element 12 for heating the heat storage body 10 .
  • the connecting piece 7 is tubular and made of heat insulating material.
  • the connecting piece 7 is connected between the first heating component and the second heating component, so as to block the conduction heat between the first heating component and the second heating component.
  • a user smokes a cigarette (not shown) in the smoking cup 3
  • the external air flows through the heat storage body 10 , the connecting piece 7 and the smoking cup 3 in sequence.
  • the air heats up to form hot air, and then enters the cigarette to heat the tobacco in the cigarette.
  • the tobacco in the cigarette is evenly heated by the peripheral heating of the first heating component and the air heating of the hot air flowing through the inside of the cigarette, thereby improving the quality of smoking.
  • the first heating component and the second heating component are connected by a connecting piece 7 made of heat insulating material, the first heating component and the second heating component will not transfer heat to each other.
  • This enables independent control of the heating temperatures of the first heating assembly and the second heating assembly.
  • the first heating component starts before the second heating component, and the priority time may be 7 seconds to 20 seconds, preferably 15 seconds.
  • the smoking appliance starts to heat after the cigarette is inserted into the cup 3
  • the heat conduction heating of the periphery of the cigarette by the first heating component is slower than the heating of the air by the second heating component.
  • the first heating component By controlling the first heating component to work earlier than the second heating component, it is possible to prevent the backflow of the smoke in the preheating stage of the smoking device (that is, the flow of the smoke from the cigarette branch down toward the heat storage body), thereby avoiding the backflow of the smoke Contamination of heat storage body and air intake.
  • the first heating component heats the cigarette, the tobacco or additives in the cigarette are atomized, and the hot air expands. At this time, the air pressure in the cigarette becomes greater than the air pressure below the cigarette.
  • the second heating component After waiting for a certain period of time, when the smoke is about to flow out from the bottom of the cigarette to the bottom of the cigarette, the second heating component starts to heat the air, and the air under the cigarette quickly heats up and expands, so that the air pressure under the cigarette rapidly increases to equal or Greater than the air pressure in the cigarette, so as to prevent the smoke from flowing back downwards.
  • the heat storage body 10 of the second heating component heats the air entering through the air intake, and the generated hot air enters the cigarette upwards to uniformly heat the tobacco in the cigarette.
  • the first heating component can control the release of the essence and spices (auxiliary additives) of the cigarette, and further increase the aroma.
  • the hot air generated by the second heating component can reduce the loss of the first heating element component when the cigarette is atomized and releases smoke.
  • the heat is replenished in time to prevent the qualitative change of the tobacco when the heat supply is insufficient during atomization, which will affect the quality of the smoke.
  • the quality of the smoke can be improved, the volume of the smoke can be increased, the harmful components of the smoke can be reduced, and the user's senses and experience can be improved.
  • the first heating element 4 may be a heating net or a heating wire arranged on the outer surface of the tobacco cup 3 so as to uniformly heat the tobacco cup 3 .
  • the tobacco cup 3 may be a hollow tubular structure made of metal material.
  • the metal material can be, for example, aluminum or SU304 stainless steel, preferably aluminum.
  • the outer surface of the cup 3 can be insulated (such as anodized or hard oxidized), so as to prevent the first heating element 4 such as a heating net or wire from being electrically connected to the cup 3 .
  • the inner surface of the tobacco cup 3 can also be insulated.
  • Insulating the inner surface of the cup 3 can not only prevent the metal material of the cup 3 from being oxidized at high temperature, but also prevent metal (such as aluminum) ions from volatilizing.
  • the outer surface of the tobacco cup 3 may also be provided with a spiral groove for arranging the heating wire or the heating net, so as to avoid the displacement of the heating wire or the heating net.
  • the first heating assembly may further include a heat-shrinkable tube 6 sheathed on the outside of the first heating element 4 .
  • a temperature sensing device 5 such as a temperature sensor can also be installed on the outer surface of the cigarette cup 3 for detecting the temperature of the cigarette cup 3 .
  • the control circuit of the smoking device can control the working state of the first heating element 4 and/or the second heating element 12 according to the temperature obtained from the temperature sensing device 5 .
  • the temperature-sensing device 5 can generally be arranged in the middle of the cigarette cup 3 and not in direct contact with the first heating element 4 .
  • the temperature sensing device 5 can be arranged in the gap between two sections of heating wires or heating nets.
  • the temperature sensing device 5 can be implemented in the form of a thermistor or a thermocouple, for example.
  • FIG. 3 shows state changes of an example assembly process of a first heating assembly.
  • the first heating element 4 such as a heating net
  • the temperature sensing device 5 on the outer surface of the cigarette cup 3 .
  • the temperature sensing device 5 is installed, it should be avoided that the temperature sensing device 5 is in contact with the first heating element 4 .
  • the heat-shrinkable tube 6 is sheathed on the outside of the first heating element 4 and the temperature-sensing element 5 .
  • the heat-shrinkable tube is heated and shrunk, so that the first heating element 4 and the temperature-sensing element 5 are closely attached to the outer surface of the tobacco cup 3 . Since the first heating element 4 is arranged on the outer surface of the tobacco cup 3, the air or smoke flowing inside the tobacco cup 3 will not be in direct contact with the first heating element 4, thereby preventing the air or smoke from being affected by the first heating element 4. Pollution affects the user's taste.
  • the cigarette cup 3 made of metal materials can quickly transfer the heat generated by the first heating element 4 such as a heating wire or a heating net to various parts of the cigarette cup 3, thereby ensuring that the cigarette cup 3 The temperature distribution is uniform everywhere.
  • the inner diameter of the cigarette cup 3 is consistent with the diameter of the used cigarette, so that the inner surface of the cigarette cup 3 can be closely combined with the side wall of the cigarette inserted into the cigarette cup 3, and the heat conduction efficiency between the cigarette cup 3 and the cigarette is improved. It is also relatively easy to insert cigarettes into the cigarette cup 3 when passing through.
  • the inner diameter of the connecting piece 7 can also be consistent with the diameter of the used cigarette, so that a part of the end of the cigarette inserted into the tobacco cup 3 can enter into the connecting piece 7 .
  • the second heating assembly may further include a heat storage body fixing sleeve 8 , a heat storage body bracket 13 and a heat storage body insulation 11 .
  • the heat storage body insulation 11 is sleeved around the heat storage body 10 to prevent the heat of the heat storage body 10 from being conducted to the surroundings.
  • the heat storage body 10 is fixed in the heat storage body fixing sleeve 8 through the heat storage body bracket 13 .
  • the heat storage body 10 and the heat storage body bracket 13 may be separate components, or integrally formed components.
  • the heat storage body support 13 is preferably made of materials with high temperature resistance and low thermal conductivity (such as ceramic materials such as alumina and zirconia).
  • the heat storage body support 13 can be in the form of a hollow, which has four columnar structures in contact with the heat storage body 10 .
  • the lower bracket 17 can be made of high temperature resistant plastic material (such as polyether ether ketone PEEK material). Since the plastic material itself has the characteristics of low thermal conductivity, the high temperature resistant plastic material has the effect of heat preservation and heat insulation while meeting the requirements of use.
  • the second heating element 12 may be disposed inside the heat storage body 10 for heating the heat storage body 10 .
  • the second heating element 12 can be implemented in the form of a heating wire.
  • inorganic or ceramic glue can be used to seal the second heating element 12 inside the heat storage body 10, so as to prevent the air flowing through the heat storage body 10 from being polluted due to contact with the second heating element 12, thereby affecting the taste of the user.
  • the heat storage body 10 is preferably cylindrical and is provided with a plurality of airflow channels in the height direction, so that the air entering from the lower end of the heat storage body fixing sleeve 8 can fully contact the heat storage body 10, thereby achieving heating in a short time. The temperature required for cigarettes.
  • FIG. 6 is a cross-sectional view of a second heating assembly of the heating module shown in FIG. 1 .
  • a through hole is provided in the center of the cylindrical heat storage body 10 .
  • the second heating element 12 is disposed in the through hole.
  • the upper end of the through hole can be sealed by the heat storage body plug 9, and the lower end of the through hole can be sealed by inorganic or ceramic glue.
  • the heat storage body 10 is the core component that completes the heat exchange in the second heating assembly to heat the air
  • the heat storage body 10 is preferably made of a material with high thermal conductivity, so that the heat generated by the second heating body 12 can be quickly transferred to the heat storage body.
  • Hot body10 The heat storage body 10 is preferably made of a material with a thermal conductivity not less than 80 W/(m ⁇ K).
  • the material of the heat storage body 10 can be a sintered body of materials such as alumina, zirconia or silicon nitride (using ceramic doping technology to improve the thermal conductivity of ceramic materials), or aluminum, copper, iron, gold, etc. , or silver and other metal materials.
  • the surface of the heat storage body 10 and/or the second heating element 12 can also be insulated.
  • Insulation treatment for example, can use processes such as anodic (cathode) oxidation, metal surface passivation, or metal surface spraying with insulating ceramics.
  • the heat storage body 10 it is also necessary to make the heat storage body 10 have as large an air contact area as possible while keeping the volume and weight small, so that the heat storage body 10 can fully exchange heat with the air.
  • the second heating element heats about 50 milliliters of air from a room temperature of about 25° C. to about 300° C. in a period of 3 seconds.
  • the air with a relatively low external temperature is heated through heat exchange with the heat storage body 10 in a short time.
  • the heat storage body needs to have a sufficiently large contact area with the air (ie, a heat exchange area).
  • the heat exchange area between the heat storage body 10 and the air is not less than 200 mm 2 .
  • the short-term heating power of the second heating element 12 can reach 44W.
  • the heat storage body 10 can be made of a material with a larger specific heat capacity, so that the heat storage body 10 has a stronger heat storage capacity.
  • the specific heat capacity of the material selected for the heat storage body 10 is not less than 0.2KJ/(kg ⁇ K).
  • Q represents heat
  • C represents specific heat capacity
  • ⁇ T represents temperature difference
  • h convective heat transfer coefficient
  • A heat transfer area.
  • the heat transfer area (heat exchange area) between the heat storage body 10 and the air in the air passage needs to be between 300 mm 2 and 900 mm 2 ;
  • the optimal heat transfer area between the heat storage body 10 and the air in the air passage is 450mm 2 to 700mm 2 ; in order to improve the thermal efficiency of the heat storage body 10, it is necessary Increase the heat transfer area between the heat storage body 10 and the air in the air passage.
  • the example heat storage bodies shown in FIGS. 5A to 5D have relatively large heat transfer areas, and all of them can be applied to the second heating assembly of this embodiment.
  • Fig. 6 shows a pre-assembled state of the first heating assembly, the connecting piece 7 and the second heating assembly of the heating module according to the embodiment of the present invention.
  • the connecting piece 7 is tubular and arranged between the tobacco cup 3 of the first heating assembly and the heat storage body fixing sleeve 8 of the second heating assembly, so that the first heating assembly and the second heating assembly are connected in Together.
  • the connecting piece 7 is made of heat-insulating material so as to block heat conduction between the first heating component and the second heating component.
  • the connecting member 7 may be made of a material with a thermal conductivity not greater than 2.2 W/m ⁇ k, such as a plastic material or a ceramic material.
  • the plastic material is preferably a polyether ether ketone (PEEK) material.
  • PEEK polyether ether ketone
  • the inner diameter of the upper end of the tubular connector 7 matches the outer diameter of the lower end of the cigarette cup 3 , so that the lower end of the cigarette cup 3 can fit into the upper end of the connector 7
  • the inner diameter of the lower end of the connector 7 matches the outer diameter of the upper end of the heat storage body fixing sleeve 8, so that the upper end of the heat storage body fixing sleeve 8 can be embedded in the lower end of the connector 7.
  • the inner diameter of the main body part (that is, the part between the upper end and the lower end) of the connector 7 can be set to match the inner diameter of the cigarette cup 3 or be slightly larger than the inner diameter of the cigarette cup 3, so that when a cigarette is inserted into the cigarette cup After 3, a part of the cigarette end is located in the connector 7.
  • the height of the connecting piece 7 can preferably be set between 3mm and 8mm (preferably 5mm), so that the end portion of the cigarette 3mm to 8mm (preferably the end portion of 5mm) is located inside the connecting piece 7 .
  • the connecting piece 7 arranged in this way is very beneficial for heating cigarettes with long dimensions.
  • the heating module can control the height of the tobacco cup 3 between 10mm and 26mm (preferably between 14mm and 20mm, more preferably 17mm), without increasing the height of the tobacco cup 3 .
  • the heating module may further include an upper support 2 , a top cover 1 , a lower support 17 and an air inlet component 18 .
  • the upper end of the tobacco cup 3 in the first heating assembly can be connected with the top cover 1 through the upper bracket 2 .
  • the upper bracket 2 can prevent the heat of the tobacco cup 3 from being conducted upwards, which can not only avoid the heat loss of the first heating component, but also prevent the top cover 1 from being damaged by heat.
  • the second heating assembly can be connected to the air inlet part 18 through the lower bracket 17 , so that the heat storage body 10 communicates with the air inlet in the air inlet part 18 .
  • the lower support 17 can be sleeved on the bottom of the second heating assembly, and the lower center of the lower support 17 has an opening.
  • An air inlet extending downward is provided in the center of the air inlet part 18 , and the upper part of the air inlet part 18 is sleeved on the outside of the lower bracket 17 .
  • the air inlet of the air inlet part 18 is aligned with the opening of the lower bracket 17, so that the air from the air inlet can enter the heat storage body fixing sleeve 8 of the second heating assembly from the opening of the lower bracket 17, and the heat storage body
  • the heat storage body 10 in the fixed sleeve 8 is thus in communication with the air intake.
  • the heating module may further include a heating module inner heat insulation member 15 and a heating module fixing sleeve 16 .
  • the heat insulating member 15 in the heating module is sleeved on the outside of the first heating assembly, the connecting piece 7 and the second heating assembly, thereby preventing heat from spreading to the outside from the first heating assembly, the connecting piece 7 and the second heating assembly.
  • the heating module fixing sleeve 16 is sleeved on the top cover 1 , the heating module inner heat insulator 15 and the air inlet part 18 outside, so that the various parts of the heating module are fixed together to form a whole.
  • the heating module may further include a heating module outer heat insulator 14 sheathed on the outside of the heating module fixing sleeve 16 to further prevent the heat inside the heating module from being conducted to the outside.
  • the heating module outer insulation 14 and the heating module inner insulation 15 can be made of materials with a thermal conductivity not greater than 0.2W/m ⁇ k, such as glass fiber, airgel, glass Made of materials such as microbeads or insulation cotton.
  • the setting of the outer heat insulation part 14 of the heating module and the inner heat insulation part 15 of the heating module can prevent the heat of the heating module from being lost to the outside, thereby improving the utilization rate of heat, and can also prevent the heating module from being affected or damaged due to heat generation. Other components outside the module.
  • Fig. 7 shows a smoking device according to an embodiment of the present invention.
  • the smoking device includes the heating module of the above-described embodiments, which is used to heat the surroundings and the air of the cigarettes.
  • the heating module is arranged on the right side inside the smoking device. In other embodiments, the heating module can also be arranged at other positions inside the smoking device according to design requirements.
  • the smoking device may further include a control circuit and a battery unit.
  • the control circuit is respectively connected with the first heating assembly and the second heating assembly of the heating module so as to independently control the operation of the first heating assembly and the second heating assembly.
  • the battery unit is connected with the control circuit, and supplies power to the heating module through the control circuit.
  • the control circuit may include a processor and a storage unit.
  • the computer program is stored in the storage unit.
  • the processor independently controls the operation of the first heating component and the second heating component so as to fully heat the cigarette.
  • the processor of the control circuit executes the computer program stored in the storage unit, so that the second heating component starts heating after a predetermined time interval after the first heating component starts heating, so as to prevent or reduce cigarette production
  • the flue gas flows downwards.
  • the predetermined time interval is between 7 seconds and 20 seconds, preferably 15 seconds.

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Abstract

一种加热模组及包括加热模组的发烟装置，加热模组包括：第一加热组件，包括用于容纳烟支的烟杯（3）和用于加热烟杯（3）的第一发热件（4）；第二加热组件，包括用于加热空气的储热体（10）和用于加热储热体（10）的第二发热件（12）；以及连接件（7）。连接件（7）呈管状并且由隔热材料制成，连接件（7）连接在第一加热组件与第二加热组件之间，使得在用户抽吸烟杯（3）中的烟支时，外部空气依次流经储热体（10）、连接件（7）和烟杯（3）。加热模组采用第一加热组件和第二加热组件同时对烟支进行周边加热和空气加热，从而改善了烟支的加热均匀性，提高了烟气质量和烟雾量。

Description

加热模组及包括该加热模组的发烟装置 技术领域
本发明涉及加热不燃烧烟具领域，尤其涉及一种加热模组及包括该加热模组的发烟装置。
背景技术
与传统的燃烧式卷烟不同，加热不燃烧(HNB)烟具通过对烟草进行低温加热，使烟草中尼古丁和烟气释放出来。低温加热的温度一般在300℃左右，远低于燃烧式卷烟800℃以上的燃烧温度。在低温加热的情况下，烟草释放的烟气中的有害物质含量远低于燃烧式卷烟，从而大幅度降低了烟草制品对人体的危害。
现有的加热不燃烧烟具的加热方式主要包括周边加热和中心加热。在周边加热方式中，容纳烟支的烟杯能够从周边对烟支进行低温加热。在中心加热方式中，加热片或加热针插入烟支并且从烟支中心进行低温加热。无论采用周边加热方式还是中心加热方式，都存在加热不均匀的问题。事实上，在周边加热方式中，烟支靠近烟杯的部分受热更充分，而远离烟杯的部分(烟支中央部分)往往不能得到充分加热。同样，在中心加热方式中，烟支中央靠近加热片或加热针的部分受热更充分，而远离加热片或加热针的部分(烟支周边部分)往往不能得到充分加热。这种受热不均的问题导致了烟草中的尼古丁不能充分释放出来，影响了用户的吸食体验。
近年来，市场上还出现了采用空气加热方式的加热不燃烧烟具。当用户抽吸烟支时，烟支下方的空气经过加热温度上升，然后从烟支底部进入烟支并对烟草进行低温加热，从而使烟草释放尼古丁和烟气。虽然热空气能够与烟草充分接触，但是由于热空气在烟支内从底部向上流动的过程中温度逐渐降低，使得远离烟支底部的烟草不能得到充分加热。特别是对于长度较长的烟支，空气加热方式带来的烟支受热不均的问题更为明显。
因此，需要提供一种能过改善加热不燃烧烟具的加热均匀性的解决方案。
发明内容
有鉴于此，本发明提供了一种加热模组及包括该加热模组的发烟装置，以便解决上述 技术问题。
本发明的技术方案如下：
一种加热模组，用于发烟装置，所述加热模组包括：
第一加热组件，包括用于容纳烟支的烟杯和用于加热烟杯的第一发热件；
第二加热组件，包括用于加热空气的储热体和用于加热储热体的第二发热件；
连接件，连接件呈管状并且由隔热材料制成，连接件连接在第一加热组件与第二加热组件之间，使得在用户抽吸烟杯中的烟支时，外部空气依次流经储热体、连接件和烟杯。
根据本发明优选的实施例，所述第二加热组件还包括储热体固定套管，储热体设置在储热体固定套管内，连接件连接在烟杯与储热体固定套管之间。
根据本发明优选的实施例，所述连接件的高度在3mm至8mm之间。
根据本发明优选的实施例，所述烟杯的高度在10mm至26mm之间。
根据本发明优选的实施例，所述连接件由导热系数不大于2.2W/m·k的材料制成。
根据本发明优选的实施例，所述连接件由塑料材料或陶瓷材料制成。
根据本发明优选的实施例，所述塑料材料包括聚醚醚酮。
根据本发明优选的实施例，连接件的内直径大于或等于烟杯内直径，使得当烟支插入烟杯后，烟支末端的一部分位于连接件内。
根据本发明优选的实施例，烟杯由金属材料制成，第一发热件为设置在烟杯外表面上的发热网或发热丝，烟杯表面经绝缘处理。
根据本发明优选的实施例，第一加热组件还包括设置在烟杯外表面上的感温器件。
根据本发明优选的实施例，第一加热组件还包括套设在第一发热件外部的热缩管，使得第一发热件紧贴烟杯外表面。
根据本发明优选的实施例，所述加热模组还包括上支架和顶盖，烟杯通过上支架与顶盖连接。
根据本发明优选的实施例，第二发热件设置在储热体内部，储热体呈圆柱形并且在高度方向上设有多条气流通道。
根据本发明优选的实施例，第二发热件为发热丝并且密封在储热体内部。
根据本发明优选的实施例，第二加热组件还包括储热体支架和储热体隔热件，储热体隔热件套设在储热体周围，储热体通过储热体支架固定在储热体固定套管中。
根据本发明优选的实施例，所述加热模组还包括下支架和进气道部件，第二加热组件通过下支架与进气道部件连接，使得储热体与进气道连通。
根据本发明优选的实施例，所述加热模组还包括加热模组内隔热件，加热模组内隔热件套设在第一加热组件、连接件和第二加热组件的外部。
根据本发明优选的实施例，所述加热模组还包括加热模组固定套管，加热模组固定套管套设在顶盖、加热模组内隔热件和进气道部件的外部。
根据本发明优选的实施例，所述加热模组还包括加热模组外隔热件，加热模组外隔热件套设在加热模组固定套管外部。
根据本发明优选的实施例，所述加热模组外隔热件和所述加热模组内隔热件由导热系数不大于0.2W/m·k的材料制成。
根据本发明优选的实施例，所述加热模组外隔热件和所述加热模组内隔热件由玻璃纤维、气凝胶或玻璃微珠制成。
本发明还提供一种发烟装置，包括以上描述的任一加热模组。
根据本发明优选的实施例，所述发烟装置还包括控制电路，用于控制第一加热组件和第二加热组件，所述控制电路被配置为，在所述发烟装置的预热阶段，使第二加热组件在第一加热组件开始加热的预定时间间隔后开始加热。
根据本发明优选的实施例，所述预定时间间隔介于7秒至20秒之间。
本发明的加热模组采用第一加热组件(周边加热组件)和第二加热组件(空气加热组件)同时对烟支进行周边加热和空气加热，从而改善了烟支的加热均匀性，提高了烟气质量和烟雾量。
由于第一加热组件和第二加热组件之间通过隔热材料制成的管状连接件进行连接，使得第一加热组件与第二加热组件产生的热量不能相互传导，从而避免了第一加热组件与第二加热组件之间的相互影响。特别是在预热阶段，第一加热组件首先对烟支进行周边加热时，第一加热组件产生的热量不会向下传导至第二加热组件，从而能够有效防止或减轻烟气向下回流的现象。管状的连接件直接连接第一加热组件与第二加热组件，既能够简化第一加热组件与第二加热组件的连接结构，又能够实现良好的隔热效果。
另外，通过单独控制第一加热组件和第二加热组件的加热功率，可以独立地控制第一加热组件进行周边加热的温度以及第二加热组件进行空气加热的温度，以便提高烟气质量和烟雾量，改善发烟装置的用户体验。
附图说明
图1是根据本发明实施例的加热模组的剖面图；
图2是图1中示出的加热模组的分解示意图；
图3是根据本发明实施例的加热模组中的第一加热组件的装配过程的状态图；
图4是根据本发明实施例的加热模组中的第二加热组件的剖面图；
图5A至图5D是用于第二加热组件的储热体的示意图；
图6是根据本发明实施例的加热模组的第一加热组件、连接件以及第二加热组件的预装配状态图；
图7是根据本发明实施例的发烟装置的剖面图。
附图标记说明：
1-顶盖；2-上支架；3-烟杯；4-第一发热件；5-感温器件；6-热缩管；7-连接件；8-储热体固定套管；9-储热体塞；10-储热体；11-储热体隔热件；12-第二发热件；13-储热体支架；14-加热模组外隔热件；15-加热模组内隔热件；16-加热模组固定套管；17-下支架；18-进气道部件。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图对示例性实施例进行详细描述。对示例性实施例的描述仅仅是说明性的，并不作为对本发明及其应用或使用的任何限制。本发明可以以许多不同的形式实现，不限于这里所述的实施例。提供这些实施例是为了使本发明透彻且完整，并且向本领域技术人员充分表达本发明的范围。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、材料的组分、数字表达式和数值应被解释为仅仅是示例性的，而不是限制性的。
本发明中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的部分。“包括”或者“包含”等类似的词语意指在该词前的要素涵盖在该词后列举的要素，并不排除也涵盖其他要素的可能。“上”、“下”、“左”、“右”等仅用于表示相对位置关系。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情 况下，所述技术、方法和设备应当被视为说明书的一部分。
根据本发明实施例的用于发烟装置的加热模组采用混合加热方式对烟支进行加热，从而使烟支均匀受热，改善发烟效果。混合加热方式包括周边加热和空气加热。周边加热是通过烟支周围的加热组件从烟支周边对烟支进行直接加热，空气加热是使经加热的空气流经烟支对烟支内的烟草进行加热。以下将结合图1至图6对根据本发明实施例的加热模组进行详细描述。
图1和图2分别为根据本发明实施例的加热模组的剖面图和分解图。如图1和图2所示，根据本发明实施例的用于发烟装置的加热模组包括：第一加热组件(周边加热组件)、第二加热组件(空气加热组件)以及连接件7。第一加热组件包括用于容纳烟支的烟杯3和用于加热烟杯的第一发热件4。第二加热组件包括用于加热空气的储热体10和用于加热储热体10的第二发热件12。连接件7呈管状并且由隔热材料制成，连接件7连接在第一加热组件与第二加热组件之间，从而阻隔第一加热组件与第二加热组件之间的传导热量。当用户抽吸烟杯3中的烟支(未示出)时，外部空气依次流经储热体10、连接件7和烟杯3。当空气流经储热体10时，空气升温形成热空气，然后进入烟支对烟支内的烟草进行空气加热。烟支内的烟草在第一加热组件的周边加热以及流经烟支内部的热空气的空气加热下均匀受热，从而改善了发烟质量。
在本实施例中，由于第一加热组件与第二加热组件之间采用由隔热材料制成的连接件7进行连接，因此第一加热组件与第二加热组件之间不会相互传递热量，使得能够独立地控制第一加热组件和第二加热组件的加热温度。例如，在发烟装置的预热阶段，第一加热组件先于第二加热组件开始，优先的时间可以是7秒到20秒，优选为15秒。事实上，当烟支插入烟杯3后，烟具开始加热时，第一加热组件对烟支的周边进行的热传导加热相对于第二加热组件对空气进行的加热要慢。通过控制第一加热组件早于第二加热组件工作，能防止发烟装置在预热阶段的烟气回流(即烟气从烟支内向下朝储热体流动)，从而避免了回流的烟气对储热体以及进气道的污染。第一加热组件对烟支进行加热时，烟支内的烟草或添加剂成分雾化，热空气膨胀，此时烟支内的空气压强开始大于烟支下方的空气压强。在等待一定时间后，烟气即将从烟支底部向烟支下方流出时，第二加热组件开始加热空气，烟支下方的空气快速升温膨胀，使得烟支下方的空气压强快速增大至等于或大于烟支内的空气压强，从而防止烟气向下回流。
在用户的抽吸阶段，第二加热组件的储热体10对通过进气道进入的空气进行加热， 产生的热空气向上进入烟支对烟支内的烟草进行均匀加热。第一加热组件可以控制烟支的香精、香料(辅助添加物料)的释放，进一步增加香气，同时第二加热组件产生的热空气可以对第一发热体组件在烟支雾化释放烟雾时流失的热量及时进行补充，防止烟草在雾化时热量供应不足时产生质变，影响烟气的质量。通过第一加热组件与第二加热组件的相互配合，可以提升烟气质量，增大烟雾量，减少烟气的有害成分，提升使用者的感官和体验。
在本实施例中，第一发热件4可以是设置在烟杯3外表面上的发热网或发热丝，以便对烟杯3进行均匀加热。烟杯3可以是由金属材料制成的中空管状结构。金属材料例如可以是铝或SU304不锈钢，优选为铝。可以对烟杯3外表面进行绝缘处理(例如阳极氧化或硬质氧化)，从而防止例如发热网或发热丝的第一发热件4与烟杯3电连通。另外，还可以对烟杯3内表面也进行绝缘处理。对烟杯3内表面进行绝缘处理既可以防止烟杯3的金属材料在高温时氧化，又可以防止金属(例如铝)离子挥发。在一些实施例中，烟杯3外表面还可以开设螺旋形槽，用于安置发热丝或发热网，从而避免发热丝或发热网产生移位。为了确保例如发热丝或发热网的第一发热件4紧密贴合在烟杯3外表面，第一加热组件还可以包括套设在第一发热件4外部的热缩管6。另外，在烟杯3外表面上还可以安装例如温度传感器的感温器件5，用于检测烟杯3的温度。发烟装置的控制电路可以根据从感温器件5获得的温度来控制第一发热件4和/或第二发热件12的工作状态。为了准确检测烟杯3的温度，感温器件5通常可以设置在烟杯3的中部，并且不与第一发热件4直接接触。例如，感温器件5可以设置在在两段发热丝或发热网中间间隙部分。感温器件5例如可以采用热敏电阻或热电偶的形式实现。
图3示出了第一加热组件的示例装配过程的状态变化。在装配第一加热组件时，首先需要将第一发热件4(例如发热网)安装在烟杯3外表面上。然后，将感温器件5安装在烟杯3外表面上。在安装感温器件5时应避免感温器件5与第一发热件4接触。最后，将热缩管6套设在第一发热件4和感温器件5的外部。热缩管受热收缩，从而使第一发热件4和感温器件5紧密贴合在烟杯3外表面。由于第一发热件4设置在烟杯3的外表面上，因此烟杯3内部流动的空气或烟气不会与第一发热件4直接接触，从而避免空气或烟气受到第一发热件4的污染，影响用户的口感。
由于金属材料是热的良导体，因此由金属材料制成的烟杯3可以将例如发热丝或发热网的第一发热件4产生的热量迅速传递到烟杯3的各处，从而确保烟杯3各处的温度分布均匀。烟杯3的内直径与使用的烟支的直径一致，从而使烟杯3的内表面能够与插入烟杯3的烟支侧壁紧密结合，提高烟杯3与烟支之间的热传导效率，通时烟支也比较容易插入 烟杯3。连接件7的内直径也可以与使用的烟支的直径一致，从而使插入烟杯3的烟支的末端的一部分能够进入连接件7中。
在本实施例中，第二加热组件还可以包括储热体固定套管8、储热体支架13和储热体隔热件11。储热体隔热件11套设在储热体10周围，防止储热体10的热量向四周传导。储热体10通过储热体支架13固定在储热体固定套管8中。应当理解，储热体10和储热体支架13可以是分离的部件，也可以是一体形成的部件。储热体支架13优选采用耐高温、低导热系数的材料(例如氧化铝，氧化锆类的陶瓷材料)。在结构上，需要尽可能减小储热体支架13与储热体10的接触面积，以及储热体支架13与下支架17的接触面积，从而减小因储热体支架13传导热量所造成的热量损失。因此，储热体支架13可以采用镂空的形式，其具有与储热体10接触的四条柱状结构。下支架17可以采用耐高温塑胶材料(例如聚醚醚酮PEEK材料)。由于塑胶材料自身具有低导热系数的特点，因此耐高温的塑胶材料在满足使用要求的同时具有保温隔热的效果。
在本实施例中，第二发热件12可以设置在储热体10内部，用于对储热体10进行加热。典型地，第二发热件12可以采用发热丝的形式实现。另外，可以使用无机或陶瓷胶将第二发热件12密封在储热体10内部，以便防止流经储热体10的空气由于与第二发热件12接触而受到污染，进而影响使用者的口感。储热体10优选呈圆柱形并且在高度方向上设有多条气流通道，使得从储热体固定套管8下端进入的空气，能够与储热体10充分接触，从而在短时间内达到加热烟支所需的温度。图5A至图5D示出了不同结构的储热体的示例。这些示例储热体大体上都呈圆柱形并且在中心设有用于容纳第二发热件12的通孔。这些示例储热体的中心通孔四周均匀地开设有多条气流通道，这些气流通道在储热体高度方向上贯穿储热体。图5A至图5D示出的储热体的气流通道的结构能够增大流经储热体的空气与储热体的接触面积，从而提高空气加热效率。图6为图1中示出的加热模组的第二加热组件的剖面图。在图6中，圆柱形储热体10的中央设有通孔。第二发热件12设置在通孔中。通孔上端可以通过储热体塞9密封，通孔下端可以通过无机或陶瓷胶密封。
由于储热体10是第二加热组件中完成热量交换以加热空气的核心部件，因此储热体10优选采用高导热系数的材料制成，以便使第二发热体12产生的热量快速传导给储热体10。储热体10优选采用热传导系数不小于80W/(m·K)的材料。具体地，储热体10的材料可以采用氧化铝、氧化锆或氮化硅等材料的烧结体(利用陶瓷参杂工艺提升陶瓷类材料的热传导系数)，或者可以采用铝、铜、铁、金、或者银等金属材料。为了防止储热体10与第二发热件12(例如发热丝)接触导致第二发热件12短路，还可以对储热体10和/或 第二发热件12的表面进行绝缘处理。绝缘处理例如可以采用阳极(阴极)氧化、金属表面钝化或金属表面喷涂绝缘类陶瓷等工艺。
另外，还需要使储热体10在保持较小的体积与重量的情况下，拥有尽可能大的空气接触面积，以便使储热体10能够与空气进行充分的热量交换。在用户的一次抽吸中，第二加热组件在3秒的时间内将约50毫升的空气由约25℃的室温加热至约300℃。外部温度较低的空气在短时间内与储热体10通过热量交换被加热。为了使空气在短时间内与储热体10进行充分的热交换，需要使储热体具有足够大的与空气的接触面积(即热交换面积)。优选地，储热体10与空气热交换面积不小于200㎜ 2。在用户的一次抽吸中，第二发热件12的短时间发热功率可以达到44W。为降低第二发热件12的瞬态发热功率，需要使储热体10还具有较强的储存热能的能力(相当于储水池效应)。材料的比热容越大，提高或降低材料温度所吸收或释放的热量越大。因此，储热体10可以采用比热容较大的材料制成，从而使储热体10具有较强的热量存储能力。优选地，储热体10选用的材料的比热容不小于0.2KJ/(kg·K)。
储热体10和第二发热件12的设计遵循热量计算公式Q＝C*M*ΔT以及牛顿冷却公式Q＝h*A*ΔT。以上两个公式中，Q代表热量，C代表比热容，ΔT代表温度差，h代表对流换热系数，A代表换热面积。根据加热空气所需的热量(空气进出口焓差)等于对流传热量(牛顿冷却公式)，可以计算出发热体需要将常温气体加热到满足烟支达到最佳雾化效果时需要的空气温度的能力。例如，为了使烟支的雾化效果最佳且储热体10的热效率最佳，储热体10与气道中的空气的传热面积(热交换面积)需要在300mm 2至900mm 2之间；同时，为了提高用户在抽吸时烟支雾化能力的稳定性，储热体10与气道中的空气的最佳传热面积为450mm 2至700mm 2；为了提高储热体10的热效率，需要提高储热体10与气道内空气的传热面积。图5A至图5D中示出的示例储热体具有较大的传热面积，均可以应用于本实施例的第二加热组件。
图6示出了根据本发明实施例的加热模组的第一加热组件、连接件7以及第二加热组件的预装配状态。如图6所示，连接件7呈管状并且设置在第一加热组件的烟杯3与第二加热组件的储热体固定套管8之间，使得第一加热组件与第二加热组件连接在一起。连接件7由隔热材料制成，以便阻隔热量在第一加热组件与第二加热组件之间传导。根据优选的实施例，连接件7可以由导热系数不大于2.2W/m·k的材料制成，例如由塑料材料或陶瓷材料制成。塑料材料优选为聚醚醚酮(PEEK)材料。在装配完成后(如图1所示)，连接件7直接连接在烟杯3与储热体固定套管8之间，使得储热体固定套管8、连接件7 和烟杯3构成封闭的气流通道。在图1所示出的实施例中，呈管状的连接件7的上端部的内直径与烟杯3下端部的外直径相匹配，使得烟杯3的下端部能够嵌入连接件7的上端部；连接件7的下端部的内直径与储热体固定套管8的上端部的外直径相匹配，使得储热体固定套管8的上端部能够嵌入连接件7的下端部。由此，只需要使用一个连接件7就可以将烟杯3与储热体固定套管8连接在一起。连接件7的主体部分(即上端部与下端部之间的部分)的内直径可以设置成与烟杯3的内直径相匹配或者略大于烟杯3的内直径，使得当烟支插入烟杯3后，烟支末端的一部分位于连接件7内。例如，连接件7的高度优选地可以设置为3mm至8mm之间(优选为5mm)，从而使烟支3mm至8mm的末端部分(优选为5mm的末端部分)位于连接件7内部。如此设置的连接件7对于加热尺寸较长的烟支是十分有利的。事实上，当烟支较长时，一般需要增大烟杯3的长度，以便对烟支周边进行充分加热。然而，烟杯3的长度越大，加热烟杯3所需要的热量就越大，第一发热件4所需要的加热功率也就越高。对于体积较小的发烟装置而言，向第一发热件4提供大功率输入的难度较大。本申请的发明人意识到，由于烟支末端部分与第二加热组件(空气加热组件)的距离接近，仅靠第二加热组件产生的热空气就可以对烟支末端部分的烟草充分加热，而不需要对烟支末端部分进行周边加热。因此，根据本实施例的加热模组可以将烟杯3的高度控制在10mm至26mm之间(优选为14mm至20mm之间，更优选为17mm)，而不必增大烟杯3的高度。
以上对根据本发明实施例的加热模组中的第一加热组件、连接件7以及第二加热组件进行了详细描述。下面结合图1和图2介绍本实施例的加热模组的其他部件。如图1和图2所示，加热模组还可以包括上支架2、顶盖1、下支架17和进气道部件18。第一加热组件中的烟杯3上端可以通过上支架2与顶盖1连接。上支架2可以阻隔烟杯3的热量向上传导，这既可以避免第一加热组件的热量流失，又可以防止顶盖1受热损坏。第二加热组件可以通过下支架17与进气道部件18连接，使得储热体10与进气道部件18中的进气道连通。在本实施例中，下支架17可以套设在第二加热组件的底部，并且下支架17下部中央具有开口。进气道部件18中央设有向下延伸的进气道，进气道部件18上部套设在下支架17外部。进气道部件18的进气道与下支架17的开口对准，使得来自进气道的空气能够从下支架17的开口进入第二加热组件的储热体固定套管8中，储热体固定套管8中的储热体10因而与进气道连通。
根据本发明实施例的加热模组中还可以包括加热模组内隔热件15和加热模组固定套管16。加热模组内隔热件15套设在第一加热组件、连接件7和第二加热组件的外部，从 而阻止热量从第一加热组件、连接件7和第二加热组件向外界扩散。加热模组固定套管16套设在顶盖1、加热模组内隔热件15和进气道部件18的外部，使加热模组的各个部件固定在一起形成一个整体。加热模组中还可以进一步包括套设在加热模组固定套管16外部的加热模组外隔热件14，用于进一步阻止加热模组内部的热量向外传导。根据优选的实施例，加热模组外隔热件14和加热模组内隔热件15可以由导热系数不大于0.2W/m·k的材料制成，例如由玻璃纤维、气凝胶、玻璃微珠或隔热棉等材料制成。加热模组外隔热件14与加热模组内隔热件15的设置既可以防止加热模组的热量向外流失，从而提高热量利用率，又可以避免加热模组由于发热而影响或损坏加热模组外部的其他部件。
图7示出了根据本发明实施例的发烟装置。发烟装置包括以上描述的实施例的加热模组，用于对烟支进行周边加热和空气加热。在图7中，加热模组设置在发烟装置内部的右侧。在其他实施例中，也可以根据设计需要将加热模组设置在发烟装置内部的其他位置。在本实施例中，发烟装置还可以包括控制电路和电池单元。控制电路分别与加热模组的第一加热组件和第二加热组件连接，以便独立地控制第一加热组件和第二加热组件的运行。电池单元与控制电路连接，并且通过控制电路对加热模组进行供电。控制电路具体可以包括处理器和存储单元。存储单元内存储计算机程序。当存储单元存储的计算机程序被处理器执行时，处理器独立地控制第一加热组件和第二加热组件的运行，以便对烟支进行充分的加热。在发烟装置的预热阶段，控制电路的处理器执行存储单元内存储的计算机程序，使得第二加热组件在第一加热组件开始加热的预定时间间隔后开始加热，以便防止或减轻烟支产生的烟气向下回流。预定的时间间隔介于7秒至20秒之间，优选为15秒。
至此，已经详细描述了本发明的各实施例。为了避免限制本发明的设计构思，在此没有详细描述本领域所公知的一些细节。但是本领域技术人员根据以上的描述，完全可以明白如何实施本发明的技术方案。
虽然已经通过示例对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上示例仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改或者对部分技术特征进行等同替换。

Claims (24)

  1. 一种加热模组，用于发烟装置，其特征在于，所述加热模组包括：
    第一加热组件，包括用于容纳烟支的烟杯(3)和用于加热烟杯(3)的第一发热件(4)；
    第二加热组件，包括用于加热空气的储热体(10)和用于加热储热体(10)的第二发热件(12)；以及
    连接件(7)，所述连接件(7)呈管状并且由隔热材料制成，所述连接件(7)连接在所述第一加热组件与所述第二加热组件之间，使得在用户抽吸烟杯(3)中的烟支时，外部空气依次流经所述储热体(10)、所述连接件(7)和所述烟杯(3)。
  2. 根据权利要求1所述的加热模组，其特征在于，所述第二加热组件还包括储热体固定套管(8)，储热体(10)设置在储热体固定套管(8)内，连接件(7)连接在烟杯(3)与储热体固定套管(8)之间。
  3. 根据权利要求2所述的加热模组，其特征在于，所述连接件(7)的高度在3mm至8mm之间。
  4. 根据权利要求3所述的加热模组，其特征在于，所述烟杯(3)的高度在10mm至26mm之间。
  5. 根据权利要求1所述的加热模组，其特征在于，所述连接件(7)由导热系数不大于2.2W/m·k的材料制成。
  6. 根据权利要求5所述的加热模组，其特征在于，所述连接件(7)由塑料材料或陶瓷材料制成。
  7. 根据权利要求6所述的加热模组，其特征在于，所述塑料材料包括聚醚醚酮。
  8. 根据权利要求1所述的加热模组，其特征在于，所述连接件(7)的内直径大于或等于烟杯(3)的内直径，使得当烟支插入烟杯(3)后，烟支末端的一部分位于连接件(7)内。
  9. 根据权利要求1所述的加热模组，其特征在于，烟杯(3)由金属材料制成，第一发热件(4)为设置在烟杯(3)外表面上的发热网或发热丝，烟杯(3)表面经绝缘处理。
  10. 根据权利要求9所述的加热模组，其特征在于，第一加热组件还包括设置在烟杯(3)外表面上的感温器件(5)。
  11. 根据权利要求9所述的加热模组，其特征在于，第一加热组件还包括套设在第一发热件(4)外部的热缩管(6)，使得第一发热件(4)紧贴烟杯(3)外表面。
  12. 根据权利要求2所述的加热模组，其特征在于，所述加热模组还包括上支架(2)和顶盖(1)，烟杯(3)通过上支架(2)与顶盖(1)连接。
  13. 根据权利要求2所述的加热模组，其特征在于，第二发热件(12)设置在储热体(10)内部，储热体(10)呈圆柱形并且在高度方向上设有多条气流通道。
  14. 根据权利要求2所述的加热模组，其特征在于，第二发热件(12)为发热丝并且密封在储热体(10)内部。
  15. 根据权利要求2所述的加热模组，其特征在于，第二加热组件还包括储热体支架(13)和储热体隔热件(11)，储热体隔热件(11)套设在储热体(10)周围，储热体(10)通过储热体支架(13)固定在储热体固定套管(8)中。
  16. 根据权利要求2所述的加热模组，其特征在于，所述加热模组还包括下支架(17)和进气道部件(18)，第二加热组件通过下支架(17)与进气道部件(18)连接，使得储热体(10)与进气道连通。
  17. 根据前述权利要求中任一项所述的加热模组，其特征在于，所述加热模组还包括加热模组内隔热件(15)，加热模组内隔热件(15)套设在第一加热组件、连接件(7)和第二加热组件的外部。
  18. 根据权利要求17所述的加热模组，其特征在于，所述加热模组还包括加热模组固定套管(16)，加热模组固定套管套设在顶盖(1)、加热模组内隔热件(15)和进气道部件(18)的外部。
  19. 根据权利要求18所述的加热模组，其特征在于，所述加热模组还包括加热模组外隔热件(14)，加热模组外隔热件(14)套设在加热模组固定套管(16)外部。
  20. 根据权利要求19所述的加热模组，其特征在于，所述加热模组外隔热件(14)和所述加热模组内隔热件(15)由导热系数不大于0.2W/m·k的材料制成。
  21. 根据权利要求20所述的加热模组，其特征在于，所述加热模组外隔热件(14)和所述加热模组内隔热件(15)由玻璃纤维、气凝胶或玻璃微珠制成。
  22. 一种发烟装置，其特征在于，所述发烟装置包括前述权利要求中任一项所述的加热模组。
  23. 根据权利要求22所述的发烟装置，其特征在于，所述发烟装置还包括控制电路，用于控制第一加热组件和第二加热组件，所述控制电路被配置为，在所述发烟装置的预热阶段，使第二加热组件在第一加热组件开始加热的预定时间间隔后开始加热。
  24. 根据权利要求23所述的发烟装置，其特征在于，所述预定时间间隔介于7秒至20秒之间。
PCT/CN2021/105773 2021-05-20 2021-07-12 加热模组及包括该加热模组的发烟装置 WO2022241931A1 (zh)

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