WO2021189799A1 - 一种在烟支前端感应加热的发烟装置 - Google Patents

一种在烟支前端感应加热的发烟装置 Download PDF

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Publication number
WO2021189799A1
WO2021189799A1 PCT/CN2020/118486 CN2020118486W WO2021189799A1 WO 2021189799 A1 WO2021189799 A1 WO 2021189799A1 CN 2020118486 W CN2020118486 W CN 2020118486W WO 2021189799 A1 WO2021189799 A1 WO 2021189799A1
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WIPO (PCT)
Prior art keywords
heating
hollow
heat
smoking device
heating element
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PCT/CN2020/118486
Other languages
English (en)
French (fr)
Inventor
吴俊�
朱东来
李廷华
李寿波
韩熠
张霞
巩效伟
赵伟
洪鎏
杨强
尤俊衡
廖晓祥
Original Assignee
云南中烟工业有限责任公司
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Application filed by 云南中烟工业有限责任公司 filed Critical 云南中烟工业有限责任公司
Priority to PCT/CN2020/118486 priority Critical patent/WO2021189799A1/zh
Priority to JP2021560251A priority patent/JP7138253B2/ja
Priority to KR1020217031022A priority patent/KR102415403B1/ko
Priority to EP20926392.0A priority patent/EP3932231B1/en
Publication of WO2021189799A1 publication Critical patent/WO2021189799A1/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
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the invention belongs to the field of novel cigarette smoking appliances, and particularly relates to a smoking device that is induction heated at the front end of the cigarette.
  • heating methods for heating non-burning cigarettes include: contact electric heating, non-contact electric heating, charcoal heating, etc.
  • Contact electric heating refers to the direct contact heating of cigarettes to obtain flue gas. It uses electric heating tubes, needles or plates and other forms of heating devices to directly contact the cigarettes or cut tobacco at a temperature lower than the ignition point of the cigarettes. Directly contact and roast the cigarettes or tobacco, so that the aroma components and smoking components of the tobacco are volatilized, which meets the smoking requirements of smokers.
  • the shredded tobacco in direct contact with the cigarette or shredded tobacco can be fully roasted, while the shredded tobacco at a distance from the heating element cannot be fully roasted.
  • the roasting effect is somewhat different on the cross-section of the cigarette’s circumference. Uniformity
  • the heating device itself has a small volume and its own heat capacity is not high. Smokers need to have a certain heating waiting time before smoking. Because the heating element is in direct contact with the shredded tobacco, in order to ensure the heating effect of the tobacco part away from the heating element, the surface temperature of the heating element is usually increased by 10-20 degrees from the optimal heating temperature to ensure sufficient heating. But at the same time, the problem is that after the tobacco in contact with the heating element is heated several times, the cured tobacco material will stick to the heating element, which will bring peculiar smell or heating difficulties to the subsequent smoking of the cigarette. .
  • the existing non-contact electric heating method uses a smoking set that electrically heats the input air, and adopts a ring-shaped metal heating element, a flat-layer metal heating element, or a combined flat-layer metal heating element to directly energize and heat, and flow through the surface
  • the air is heated and then introduced into the cigarettes for "roasting" omnidirectional three-dimensional heating.
  • the present invention provides a smoking device with induction heating at the front end of a cigarette, and the smoking device includes:
  • the hollow heating cup 2 includes an upper hollow structure, a lower hollow structure and a baffle between the two, the upper hollow structure includes a cigarette accommodating cavity 13, and the lower hollow structure includes a heating body accommodating cavity.
  • the baffle has a heat collection hole 21 connecting the cigarette accommodating cavity 13 and the heating body accommodating cavity;
  • the heating element 5 has a structure that can pass air, and the heating element 5 is arranged in the heating element accommodating cavity of the hollow heating cup 2;
  • the induction coil 4 surrounds the outer wall of the heating body accommodating cavity of the hollow heating cup 2 and is connected to a power source.
  • the heating element 5 is made of ferromagnetic metal.
  • ferromagnetic metals iron, cobalt, and nickel are selected.
  • the heating element 5 having a structure through which air can pass means that the heating element 5 has/forms multiple airflow channels inside and/or on the surface.
  • the hollow heating cup 2 has an integrated structure or a split structure; that is, the upper hollow structure, the lower hollow structure and the baffle between them are an integrated structure or a split structure.
  • the upper hollow structure, the lower hollow structure, and the baffle can be divided into two split-connected structures.
  • the upper part of the hollow heating cup 2 is a hollow tubular structure, and the lower part is a hollow tubular structure 14 with a top plate.
  • the top plate serves as the above-mentioned baffle. It is a detachable connection, preferably a snap connection;
  • the upper hollow tubular structure is made of metal material, which is convenient for heat conduction and processing, and the hollow tubular structure 14 with a top plate at the lower part is made of non-metal material, which is convenient for magnetic conduction.
  • the heating element 5 includes a ferromagnetic bundled metal fiber wire, or a porous, foamed solid ferromagnetic metal block.
  • the ferromagnetic bundled metal fiber filaments refer to metal fiber tows that are composed of ferromagnetic materials and are bundled together according to any rule of multiple fibers (monofilament diameters of 0.5-0.001 mm). Because, in the metal fiber tow, there are small air flow channels between adjacent metal fiber wires, which can ensure the full flow of gas between the metal fiber wires. A large number of bundled fibers constitute the heating element 5, and its specific surface area is large. When it is heated by the high-efficiency induction coil 4, the air sucked in and flowing through the surface of the heating element 5 can be quickly and fully absorbed into the heating element 5. The heat of each filament is quickly exchanged to the passing air.
  • the porous foamed ferromagnetic metal block refers to a metal block with a porous honeycomb structure formed by foaming metal aggregates.
  • foam metal blocks etc.
  • the porous, foamed solid ferromagnetic metal block has a large specific surface area and numerous air flow channels, and its air heating effect is similar to that of bundled metal fiber filaments.
  • the heating body accommodating cavity is in communication with the outside air.
  • the hollow heating cup 2 is made of non-metallic material; more preferably, the hollow heating The cup 2 is made of high-temperature resistant, non-toxic, non-metallic materials such as glass-ceramics, ceramics, etc., which are processed by precision processing or molding.
  • the heating element 5 is arranged in the heating element accommodating cavity, and the heat insulation ring 10 abuts against the lower end of the heating element 5 to limit its position.
  • the cigarette accommodating cavity 13 and the heating body accommodating cavity are cylindrical.
  • the bundled metal fiber filaments are bundled together in such a way that the metal fiber filaments are arranged parallel to the axis of the heating body accommodating cavity.
  • the smoking device further includes: a shielding ring 6 arranged on the periphery of the induction coil 4.
  • the shielding ring 6 is used for electromagnetic shielding of the induction coil 4 working in the middle and high frequency range. It is made of non-ferromagnetic and easy-to-process aluminum, copper, aluminum or copper alloy.
  • the shielding ring 6 is sleeved in a circular ring, or is wrapped with a thin metal sheet on the outside of the induction coil 4 to ensure that the induced magnetic field generated by the induction coil 4 after being energized will not affect the ferromagnetic surroundings of the smoking device of the present invention. Materials or other equipment produce electromagnetic interference or induction heating. Therefore, the changing magnetic field generated by the induction coil 4 can be concentrated on the ferromagnetic heating element 5 to generate eddy current and generate heat.
  • the inner wall of the shield ring 6 is required to be at least 0.5 mm away from the outermost circle of the induction coil 4, the length of the shield ring 6 must be greater than the total axial length of the induction coil 4, and both ends of the shield ring 6 are at least greater than or equal to the length of the induction coil 4 by 5 mm or more.
  • the smoking device further includes: two layers of heat insulation and insulation isolation layer 7, one layer of isolation layer 7 is wrapped on the outer wall of the heating body accommodating cavity of the hollow heating cup 2 surrounded by the induction coil 4, and the other An isolation layer 7 wraps the outside of the induction coil 4, and the induction coil 4 is located between two isolation layers 7.
  • two layers of heat insulation and insulation isolation layer 7 one layer of isolation layer 7 is wrapped on the outer wall of the heating body accommodating cavity of the hollow heating cup 2 surrounded by the induction coil 4, and the other An isolation layer 7 wraps the outside of the induction coil 4, and the induction coil 4 is located between two isolation layers 7.
  • the isolation layer 7 is a high-temperature resistant, insulating, and heat-insulating high-temperature tape, glass fiber or a heat-shrinkable polymer material wrapping layer.
  • High temperature resistance means that no deformation occurs at 250 degrees Celsius under one atmosphere.
  • the upper hollow structure of the hollow heating cup 2 is provided with a hollow heat spreader 3, which has a top plate, and a plurality of heat equalizing holes 31 are provided on the top plate.
  • the hollow structure inside the hollow heat spreader 3 is The heat equalizing cavity 32, the hollow heat equalizer 3 is arranged at the lower part of the cigarette accommodating cavity 13, and the equalizing cavity 32 communicates with the cigarette accommodating cavity 13 through the heat equalizing hole 31, and The heat cavity 32 communicates with the heat generating body accommodating cavity through the heat collecting hole 21.
  • the heat spreader 3 is a hollow cylinder with an open lower end and a top plate at the upper end.
  • the heat spreader 3 is placed in the upper hollow structure of the hollow heating cup 2 by interference fit. It is made of thin-walled, non-ferromagnetic aluminum or copper and other materials.
  • the inner wall of the supporting hole 13 preferably has a transitional fit.
  • the heating cup 2 is a non-metallic material, and the expansion amount after heating is less than that of the metal heat spreader 3, so as long as the heat spreader 3 does not naturally slide inside the upper hollow structure of the heating cup 2 at room temperature.
  • the smoking device further includes: a temperature sensor 8 which is arranged at the end of the heating element 5 and is embedded in the heating element 5 by perforating the end of the heating element 5 for detecting the heating element 5's temperature.
  • a temperature sensor 8 which is arranged at the end of the heating element 5 and is embedded in the heating element 5 by perforating the end of the heating element 5 for detecting the heating element 5's temperature.
  • the smoking device further includes:
  • the heat insulation ring 10 is arranged at the lower end of the heating element 5, the upper end abuts the heating element 5, the lower end abuts the hollow base 11, the heat insulation ring 10 and the hollow structure inside the hollow base 11
  • the outside air is connected with the heating body accommodating cavity.
  • the heat insulation ring 10 and the lower part of the hollow heating cup 2 are matched and connected by means of a threaded mouth, a bayonet, a pin or a self-locking taper.
  • the smoking device further includes: a vacuum insulation tube 9 which is arranged on the periphery of the non-metal hollow heating cup 2 and surrounds the shielding ring 6.
  • the longitudinal section of the non-metal hollow heating cup 2 is H-like, and the material is glass or ceramic.
  • the shielding ring 6 is made of a non-ferromagnetic material, including aluminum, copper, and alloys containing aluminum or copper.
  • the material of the heat spreader 3 is a non-ferromagnetic material, including aluminum, copper, and alloys containing aluminum or copper.
  • the heat equalizing holes 31 are evenly distributed in the circumferential direction on the top plate of the heat equalizer 3, and the heating element 5 has an axial air flow channel inside.
  • the heating process of the smoking device is as follows:
  • a cigarette (not shown in the figure) is inserted into the cigarette accommodating cavity 13.
  • the smoking device is turned on, the induction coil is energized, and the heating element 5 starts to generate heat.
  • the suction is started, and the outside air is sucked in from the lower part of the heating cup 2 and is quickly and sufficiently heated by the heating element 5 to obtain hot high-temperature gas.
  • high-temperature hot air is sucked into the uniform heat cavity 32 with a larger diameter formed by the cylindrical inner wall of the heat homogenizer 3 from the heat collecting hole 21 with a smaller diameter, the air flow rate, pressure and temperature are high at the front end of the heat collecting hole 21.
  • the air temperature is relatively low, the flow velocity is slow, and the pressure is high.
  • the uniform heating cavity 32 generates multi-zone micro-flow to homogenize the heat and pressure difference, and the pressure and temperature of the gas reaching the uniform heating hole 31 are homogenized ,
  • the temperature is slightly lowered, the high-temperature gas is sucked into the cigarette inserted into the cigarette cavity 13 after being subjected to the negative pressure from the smoker.
  • the homogenized high-temperature gas will bake the tobacco part in the cigarette. Bake and heat.
  • the soaking holes 31 are evenly distributed on the circumference of the top plate of the heat spreader 3, which ensures that the smoking device of the present invention can roast the tobacco more evenly and more fully than the direct contact heater.
  • the input of the hot gas heat and the homogenized gas heat are also conducted to the heat homogenizer 3 and finally to the upper part of the heating cup 2.
  • the heating element 5 is induction heated in the heating element accommodating cavity and then transferred to the lower part of the heating cup 2 through radiation and air conduction.
  • the lower part of the heating cup 2 directly conducts the heat to the heating The upper part of the cup 2.
  • This part of the heat conducted to the upper part of the heating cup 2 will also roast and heat the cigarettes inserted into the cigarette accommodating cavity 13. Therefore, the design of the heating cup 2 of the present invention achieves the purpose of making full use of heat.
  • the cigarettes inserted into the cigarette accommodating cavity 13 are not only heated by the uniform high-temperature hot air flow from the multiple heat equalizing holes 31, but also uniformly roasted and heated by the heat from the upper part of the heating cup 2 on the outer circumference of the cigarette accommodating cavity 13. Therefore, the uniform and sufficient heating and heating of the tobacco part of the cigarette shows the advantages of peripheral heating, sheet-type or pin-type central heating compared with direct contact heating.
  • the cigarette is smoked, there is no problems such as the adhesion of the centrally heated tobacco material and the retention of the smoking article in the tobacco section, which simplifies the process of taking out the cigarette from the smoking article and avoids the design of a structure dedicated to taking out the cigarette.
  • the present invention designs for the first time an electric heating smoke generating device for instantaneous induction heating of air taken in and passing through.
  • the heating principle is induction heating.
  • the inside and/or surface of the heating element has multiple airflow channels, which can flow through the surface of the heating element. And the internal air is quickly and fully heated, which effectively solves the previous problems of uneven heating of electric heating cigarettes, easy curing of carbon-heated cigarettes, difficult control, insufficient aroma components, and poor smoking sensation.
  • the heating element is a ferromagnetic bundled metal fiber wire with a large specific surface area or a ferromagnetic porous, foamed solid ferromagnetic metal block.
  • the heating element of the present invention has many small airflow channels inside, which has higher airflow dispersion, and can quickly and fully heat the air flowing through its surface and inside.
  • the present invention is the first to install a heat homogenizer 3 between the heating element 5 and the cigarette accommodating cavity 13. Under the action of the pressure difference, the internal homogenizing cavity 32 multi-zone micro-flow homogenizing heat And the pressure difference, the multi-regional micro-flow homogenization heat and pressure difference are generated inside the uniform heating chamber 32. After the negative pressure generated by the suction is received at the uniform heating hole 31, the gas that is relatively homogenized and has a certain temperature drop is sucked into In the cigarettes inserted into the cigarette accommodating cavity 13, the homogenized high-temperature gas is used to roast and heat the tobacco part in the cigarettes.
  • the smoking device of the present invention can roast the tobacco more uniformly and fully, and there is no contact electric heating produced after roasting. Tobacco substance adhesion, tobacco segment retention problems such as smoking utensils.
  • the heating cup 2 of the present invention contains cigarettes in the upper part and heating elements in the lower part. While the heating element mainly provides air heating, the rest of the heat is transferred to the lower part of the heating cup 2 through radiation and air conduction, and then heat is directly transferred from the lower part of the heating cup 2 to the upper part of the heating cup 2, so it also has a baking effect on the cigarettes. . Therefore, the design of the heating cup 2 of the present invention achieves the purpose of making full use of heat.
  • Fig. 1 is a longitudinal cross-sectional view of a smoking device with induction heating at the front end of a cigarette according to Example 1, and a partial enlarged view on the right.
  • FIG. 2 is a perspective view of the parts of the hollow heat spreader 3 of the smoking device of Embodiment 1.
  • FIG. 1 is a perspective view of the parts of the hollow heat spreader 3 of the smoking device of Embodiment 1.
  • Fig. 3 is a longitudinal cross-sectional view of a smoking device with induction heating at the front end of the cigarette according to Embodiment 2, and the right is a partial enlarged view.
  • embodiment 1 provides a smoking device with induction heating at the front end of a cigarette, and the smoking device includes:
  • Socket 1 non-metal hollow heating cup 2, hollow heat spreader 3, induction coil 4, heating element 5, shielding ring 6, heat insulation, insulation isolation layer 7, temperature sensor 8, vacuum insulation tube 9, heat insulation ring 10.
  • the longitudinal section of the heating cup 2 is H-like, and the material is high-temperature resistant, non-toxic non-metallic materials such as glass-ceramics and ceramics with increased processing precision.
  • the heating cup 2 is an integrated structure, including an upper hollow structure, a lower hollow structure and a baffle between the two, the upper hollow structure includes a cigarette accommodating cavity 13, and the lower hollow structure includes a heating body accommodating cavity, The baffle has a heat collection hole 21 connecting the cigarette accommodating cavity 13 and the heating body accommodating cavity;
  • the heating element 5 includes a ferromagnetic bundled metal fiber wire, or a porous, foamed solid ferromagnetic metal block, and the heating element 5 is arranged in the heating element accommodating cavity of the heating cup 2, and the heating element accommodating cavity Communicating with the outside air, the heating element 5 has an axial air flow channel inside;
  • the induction coil 4 surrounds the outer wall of the heating body accommodating cavity of the heating cup 2 and is connected to a power source through the coil lead 12.
  • the induction coil 4 is manually controlled when it is initially started.
  • the smoking device automatically adjusts the electrical parameters of the induction coil 4 according to the temperature detected by the temperature sensor 8, so as to meet the needs of smoking cigarettes. The amount of heat required.
  • the ferromagnetic bundled metal fiber wire of the present embodiment 1 refers to: a multi-fiber (monofilament diameter of 0.5-0.001mm) composed of ferromagnetic material is arranged in parallel with the axis of the heating body accommodating cavity according to the metal fiber wire The metal fiber tows are bundled together in a way.
  • the porous, foamed solid ferromagnetic metal block also has a large specific surface area and numerous air flow channels, and its air heating effect is similar to that of bundled metal fiber filaments.
  • the heating element 5 is arranged in the heating element accommodating cavity, and is restricted and fixed by the heat insulation ring 10 at the lower end.
  • the cigarette accommodating cavity 13 and the heating body accommodating cavity are cylindrical.
  • the shielding ring 6 is made of a non-ferromagnetic material, including aluminum, copper, and alloys containing aluminum or copper, and is arranged on the periphery of the induction coil 4.
  • the shielding ring 6 is used for electromagnetic shielding of the induction coil 4 working in the middle and high frequency range. It is made of non-ferromagnetic and easy-to-process aluminum, copper, aluminum or copper alloy.
  • the shielding ring 6 is sleeved in a circular ring, or is wrapped with a thin metal sheet on the outside of the induction coil 4 to ensure that the induced magnetic field generated by the induction coil 4 after being energized will not affect the ferromagnetic surroundings of the smoking device of the present invention. Materials or other equipment produce electromagnetic interference or induction heating.
  • the inner wall of the shield ring 6 is required to be at least 0.5 mm away from the outermost circle of the induction coil 4, the length of the shield ring 6 must be greater than the total axial length of the induction coil 4, and both ends of the shield ring 6 are at least greater than or equal to the length of the induction coil 4 by 5 mm or more.
  • the smoking device includes two layers of heat insulation and insulating isolation layer 7, one layer of isolation layer 7 is wrapped on the outer wall of the heating body accommodating cavity of the hollow heating cup 2 surrounded by the induction coil 4, and another layer of isolation layer 7 is wrapped
  • the outside of the induction coil 4 and between the two isolation layers 7 are the induction coil 4, that is, an isolation layer 7 needs to be wrapped before and after the outer wall of the heating cavity 2 where the induction coil 4 is wound. In this way, the electromagnetic performance of the induction coil 4 during operation can be ensured, and it can also be ensured that the induction coil 4 is positioned on the outer wall of the heating body accommodating cavity of the hollow heating cup 2.
  • the isolation layer 7 is a high-temperature resistant, insulating, and heat-insulating high-temperature tape, glass fiber or a heat-shrinkable polymer material wrapping layer.
  • the upper hollow structure of the hollow heating cup 2 is provided with a hollow heat spreader 3, which has a top plate, the top plate is provided with a plurality of uniformly distributed heat equalizing holes 31 in the circumferential direction, the hollow heat spreader 3
  • the hollow structure is a heat equalizing cavity 32
  • the hollow heat equalizer 3 is arranged at the lower part of the cigarette accommodating cavity 13, and the equalizing cavity 32 communicates with the cigarette accommodating cavity 13 through the heat equalizing hole 31,
  • the heat equalizing cavity 32 communicates with the heating body accommodating cavity through the heat collecting hole 21.
  • the diameter of the heat equalizing hole 31 is 0.3-1 mm.
  • the heat spreader 3 is a hollow cylinder with an open lower end and a top plate at the upper end.
  • the heat spreader 3 is placed in the upper hollow structure of the hollow heating cup 2 by interference fit. It is made of thin-walled, non-ferromagnetic aluminum or copper and other materials.
  • the inner wall of the supporting hole 13 preferably has a transitional fit.
  • the heating cup 2 is a non-metallic material, and the expansion amount after heating is less than that of the metal heat spreader 3, so as long as the heat spreader 3 does not naturally slide inside the upper hollow structure of the heating cup 2 at room temperature.
  • the temperature sensor 8 is provided at the lower end of the heating element 5, and is embedded in the heating element 5 by perforating the lower end of the heating element 5 to detect the temperature of the heating element 5.
  • the heat insulation ring 10 is arranged at the lower end of the heating element 5, the upper end abuts the heating element 5, the lower end abuts the hollow base 11, the heat insulation ring 10 and the hollow structure inside the hollow base 11 communicate with the outside world Air and the heating body containing cavity.
  • the heat insulation ring 10 is threadedly connected with the inner hollow structure of the lower part of the hollow heating cup 2.
  • the insulation ring 10 is made of high-temperature resistant ceramic or quartz glass.
  • the vacuum insulation tube 9 is arranged on the periphery of the hollow heating cup 2 and surrounds the shielding ring 6. It is also possible to wrap the heat preservation and heat insulation material outside the vacuum heat preservation pipe 9 or replace the vacuum heat preservation pipe 9 with other heat preservation and heat preservation materials without affecting the appearance or use conditions, so as to reduce the internal production as much as possible. The heat is spread to the periphery, thereby improving thermal efficiency, and avoiding damage to devices, circuits, etc. near the heating cavity, or increasing the user's bad experience. Of course, the use of the vacuum insulation tube 9 is only an optimal method, not the only method that limits the present invention.
  • the jack socket 1 is arranged at the upper end of the non-metallic hollow heating cup 2 to fix the positions of the heating cup 2 and the heat preservation tube 9, and the jack socket 1 has a central through hole for inserting cigarettes.
  • embodiment 2 provides a smoking device with induction heating at the front end of the cigarette.
  • the hollow heating cup 2 has a split structure.
  • the upper part of the hollow heating cup 2 is a hollow tubular structure, and the lower part is a hollow tubular structure 14 with an integrated top plate. Hot hole 21. The upper part and the lower part of the hollow heating cup 2 are clamped.
  • the upper hollow tubular structure is made of metal material, which is convenient for heat conduction and processing, and the lower hollow tubular structure 14 with a top plate is made of non-metal material, which is convenient for magnetic conduction.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

一种在烟支前端感应加热的发烟装置，该装置包括：中空加热杯(2)、发热体(5)、感应线圈(4)；其中，中空加热杯(2)包括上部中空结构、下部中空结构和两者之间的挡板，发热体(5)设置在下部中空结构内，外围为感应线圈(4)，发热体(5)材质为铁磁性金属，其具有可穿过空气的结构，发热体(5)内部和/或表面具有/形成多个气流通道，可以对流过其表面的空气快速充分加热，有效解决此前电加热卷烟加热不均匀、炭加热卷烟易烤燃、不易控、香气成分不足、抽吸感差的问题。

Description

一种在烟支前端感应加热的发烟装置 技术领域
本发明属于新型卷烟烟具领域，特别涉及一种在烟支前端感应加热的发烟装置。
背景技术
随着人们健康意识的提高，加热不燃烧卷烟因其相比传统燃吸式卷烟危害较小，越来越受到吸烟者的青睐。目前，加热不燃烧卷烟的加热方式包括：接触式电加热、非接触式电加热、炭加热等。
接触式电加热是指对烟支直接接触式加热获得烟气，其使用通电加热的管、针或板等各种形式的加热器具与烟支或烟丝直接接触，在低于烟支燃点的温度下对烟支或烟草直接接触烘烤，使烟草的致香成分和发烟成份挥发出来，满足吸烟者对烟草的吸食要求。
上述这种加热烟支或烟丝的方法存在的问题是：
一、与烟支或烟丝直接接触的烟丝能够被充分烘烤，而与发热体距离稍远位置的烟丝则得不到充分的烘烤，烘烤效果在烟支圆周横断面上有一定的不均匀性；
二、加热器具本身体积较小，自身热容量不高。吸烟者在抽吸前需有一定加热等待时间。因为发热元件与烟丝直接接触，为了保证远离发热体烟草部分的加热效果，通常让发热元件表面温度比最佳适配加热温度提高10－20度，以保证加热的充分性。但同时带来的问题是：与发热元件有接触的烟草经过数次的加热后，就会有烘烤后的烟草物质粘滞在发热元件上，给后续烟支的抽吸带来异味或加热困难。
现有炭加热的烟支是利用附加在烟草前端的炭棒点燃后，对流经炭棒的空气进行快速加热。当这些炽热的空气在吸烟者的抽吸负压作用下，继续流过烟支端的烟丝部分时，对烟丝进行烘烤加热从而实现对烟丝部分的不燃烧加热。因此，这种加热方式可得到烟草香气，又避免了因点燃而大量产生的焦油和尼古丁等有害物质。这种炭加热的烟支尽管具有比现有普通卷烟低害的特点，但是其烟支的前端附加了炭棒，不仅增加了烟支制造的难度，影响生产效率，还存在消费者点 燃炭棒所需时间较长，点燃不易，炭棒燃烧可能有一定的异味等缺点。同样，炭棒点燃后难以控制，在不抽烟时，也存在着对烟丝部分的烘烤。且炭棒的末端也与烟丝直接接触或相对靠近，因此，存在以下问题：在燃烧炭棒的末段也有对少量残余烟丝直接烘烤甚至临界烤燃的现象。
现有非接触式电加热方式是利用对输入空气进行电加热的烟具，采用环状金属发热体、平层金属发热体、或组合式平层金属发热体直接通电加热的方式，对流过其表面的空气进行加热后再导入烟支进行“烘焙式”全方位立体加热。
但上述非接触式电加热方式存在着以下问题：
一、发热体相邻表面因通电的关系，相互绝缘需有足够空间，以防短路，因此存在只有流过发热体表面层的空气能够被充分加热的问题；
二、对发热体的温度测控不便的问题：因温度传感器不能直接安装在发热体上，而气流的通路上，不仅安装、引线不便，还存在抽吸时与不抽吸时气流动、静间相对温度差过大，不易控制确定的问题。
为了解决上述问题，提出本发明。
发明内容
本发明提供一种在烟支前端感应加热的发烟装置，所述发烟装置包括：
中空加热杯2、铁磁性发热体5、感应线圈4；
其中，所述中空加热杯2包括上部中空结构、下部中空结构和两者之间的挡板，所述上部中空结构包括烟支容纳腔13，所述下部中空结构包括发热体容纳腔，所述挡板上具有连通所述烟支容纳腔13和发热体容纳腔的集热孔21；
所述发热体5具有可穿过空气的结构，所述发热体5设置在所述中空加热杯2的发热体容纳腔内；
所述感应线圈4包围在所述中空加热杯2发热体容纳腔的外壁，与电源连接。
所述发热体5材质为铁磁性金属。铁磁性金属选择铁、钴、镍。
所述发热体5具有空气可穿过结构意思为：所述发热体5内部和/或表面具有/形成多个气流通道。
优选地，所述中空加热杯2为一体式结构、或者为分体式结构；即所述上部中空结构、下部中空结构和两者之间的挡板为一体式结构，或者为分体式结构。上部中空结构、下部中空结构、挡板三者可以分为两个分体式连接的结构。
优选地，所述中空加热杯2的上部为中空管状结构，下部为带有顶板的中空管状结构14，所述顶板作为上述所述的挡板，所述中空加热杯2的上部和下部之间为可拆卸连接，优选为卡接；
更优选的，所述上部中空管状结构为金属材质，方便导热和加工，所述下部带有顶板的中空管状结构14为非金属材质，方便导磁。
优选地，所述发热体5包括铁磁性集束金属纤维丝、或者多孔隙、发泡固态铁磁性金属块。
其中，所述铁磁性集束金属纤维丝是指：由铁磁性材料组成的多束纤维(单丝直径在0.5-0.001mm)按任一规律集束在一起的金属纤维丝束。因为，金属纤维丝束中，相邻的金属纤维丝之间具有细小的气流通道，这可以保证气体在金属纤维丝之间充分的流动。集束而成的众多纤维构成发热体5，其比表面积很大，当它被高效的感应线圈4加热时，外部吸入、流过其表面的空气就能最快速、最充分地把发热体5中每个纤维丝的热量快速交换给流过的空气。
多孔隙发泡铁磁性金属块是指：金属骨料通过发泡生产形成多孔隙蜂窝状结构的金属块。例如：泡沫金属块等。多孔隙、发泡固态铁磁性金属块的比表面积也很大，气流通道众多，其加热空气的效果与集束金属纤维丝相近。
优选地，所述发热体容纳腔与外界空气连通。
优选地，所述中空加热杯2的上部中空结构、下部中空结构和两者之间的挡板为一体式结构时，所述中空加热杯2为非金属材质；更优选地，所述中空加热杯2由微晶玻璃、陶瓷等耐高温、无毒的非金属的材料经精密加工或模压工艺加工组成。
优选地，所述发热体5设置在发热体容纳腔内，隔热环10抵靠在所述发热体5下端部对其进行限位。
优选地，所述烟支容纳腔13和发热体容纳腔为圆柱体。
优选地，所述集束金属纤维丝是按照金属纤维丝与所述发热体容纳腔轴线平行设置的方式集束在一起的。
优选地，所述发烟装置还包括：屏蔽环6，其设置在所述感应线圈4的外围。
屏蔽环6为对工作在中、高频范围内的所述感应线圈4产生电磁屏蔽作用，它采用非铁磁性，易加工的铝、铜、铝或铜合金等制成。所述屏蔽环6呈圆环套在、或用薄金属片卷在所述感应线圈4的外侧，以保证通电后的感应线圈4产生 的感应磁场不会对本发明的发烟装置外围的铁磁性材料或其它设备产生电磁干扰或感应发热的现象，因此感应线圈4产生的变化磁场才能最大部份地集中作用在铁磁性发热体5上产生涡流而发热。要求屏蔽环6内壁距离感应线圈4最外圆至少0.5mm，屏蔽环6的长度须大于感应线圈4的轴向总长度，且屏蔽环6两端至少大于或等于感应线圈4长度5mm或以上。
优选地，所述发烟装置还包括：两层隔热、绝缘隔离层7，一层隔离层7包裹在所述感应线圈4包围的所述中空加热杯2发热体容纳腔的外壁，另一层隔离层7包裹所述感应线圈4的外部，两层隔离层7之间为所述感应线圈4。这样既能保证感应线圈4工作时的电磁性能，又可保证感应线圈4定位于所述中空加热杯2发热体容纳腔的外壁。
所述隔离层7为耐高温的、绝缘、隔热的高温胶布、玻璃纤维或可热缩的高分子材料包裹层。耐高温的是指：一个大气压下，在250摄氏度时，不发生形变。
优选地，所述中空加热杯2的上部中空结构内部设置有中空均热器3，其具有顶板，所述顶板上设置若干个均热孔31，所述中空均热器3内部的中空结构为均热腔32，所述中空均热器3设置在所述烟支容纳腔13的下部，所述均热腔32通过所述均热孔31与所述烟支容纳腔13连通，所述均热腔32通过所述集热孔21与所述发热体容纳腔连通。
均热器3为中空圆柱体，下端开放，上端具有顶板。均热器3是用过盈配合放置在所述中空加热杯2的上部中空结构内，它采用薄壁，非铁磁性的铝或铜等材料制成，其外圆柱面与发热腔上部的烟支孔13内壁优选过渡配合。加热杯2为非金属材料，受热后膨胀量小于金属均热器3的膨胀量，因此只要常温下均热器3不会在加热杯2的上部中空结构内部自然滑动即可。(如按常识，两无运动的零件采用过盈配合则有可能因内部均热器3的膨胀量大于发热腔2，且加热杯2又是非金属薄壁零件而造成加热杯2与均热器3配合处应力集中而损坏。)
优选地，所述发烟装置还包括：温度传感器8，其设置在发热体5的端部，通过在发热体5端部打孔的方式，植埋在发热体5中，用于检测发热体5的温度。
优选地，所述发烟装置还包括：
隔热环10，中空底座11；
其中，所述隔热环10设置在所述发热体5的下端，上端抵靠所述发热体5、下端抵靠所述中空底座11，所述隔热环10和中空底座11内部的中空结构连通 外界空气与所述发热体容纳腔。所述隔热环10与所述中空加热杯2的下部通过螺纹口、卡口、销钉或自锁锥度等方式配合连接。
优选地，所述发烟装置还包括：真空保温管9，其设置在所述非金属中空加热杯2的外围，且包围所述屏蔽环6。
优选地，所述非金属中空加热杯2纵向截面为类H型，材质为玻璃或陶瓷。
优选地，所述屏蔽环6材质为非铁磁性材质，包括铝、铜、含有铝或铜的合金。
优选地，所述均热器3材质为非铁磁性材质，包括铝、铜、含有铝或铜的合金。
优选地，所述均热孔31在所述均热器3顶板上呈周向均匀分布，所述发热体5内部具有轴向气流通道。
本发烟装置的加热过程如下：
如图1，在烟支容纳腔13内插入烟支(图中未表示)。开启发烟装置，感应线圈通电，发热体5开始发热。开始抽吸，外界空气从加热杯2下部吸入，经过发热体5的快速充分加热，得到炽热高温气体。高温炽热空气从直径较小的集热孔21中吸入匀热器3圆柱型内壁形成的直径较大的匀热腔32内部时，在集热孔21前端空气流速大、压力低，温度高，而相对远离集热孔21、及相对该孔径向或轴向位置相对较远的区域，空气温度相对稍低，流速慢，压力高。当炽热高速气流进入匀热腔32后，在压力差的作用下，匀热腔32内部产生多区域微流动，均化热量和压差，到达均热孔31的气体的压力和温度被均化，温度稍有降低，高温气体受到吸烟者传来吸烟的负压后，被吸入到烟支腔13内插入的烟支中，这些均化后的高温气体对烟支内的烟草部份进行烘烤加热。此外，均热孔31在均热器3顶板的圆周上呈均匀分布，保障了本发烟装置与直接接触式加热器的相比，对烟草的烘烤更均匀，更充分。
同时在均热腔32内部热量交换、压差均化的过程中，输入的炽热气体热量和均化后气体热量也传导到均热器3并最终传导到加热杯2的上部。加热杯2上热量的另一部份来源是：发热体5在发热体容纳腔中被感应加热后通过辐射和空气传导传递给加热杯2下部，所述加热杯2下部直接将热量传导到加热杯2上部。这部份传导至加热杯2上部的热量，也将对插入烟支容纳腔13的烟支进行烘烤加热。因此本发明的加热杯2设计达到了充分利用热量的目的。
因此，插入烟支容纳腔13的烟支不仅有来自多个均热孔31的均匀高温热气流加热，还将得到来自烟支容纳腔13外圆周上加热杯2上部热量的均匀烘烤加热，从而对烟支烟草部份均匀、充分的烘烤加热，表现了相比直接接触加热的周向加热、片式或针式中心加热的优点。且烟支抽吸完毕时，没有中心加热的烟草物质粘连、烟草段滞留烟具等问题，从而简化了从烟具取出烟支的过程，也避免了设计专用于烟支取出的结构。
上述技术方案在不矛盾的前提下，可自由组合。
本发明具有以下有益效果：
1、本发明首次设计了一种对吸入并通过的空气进行瞬时感应加热的电加热发烟装置，加热原理为感应加热，发热体内部和/或表面具有多个气流通道，可以对流过其表面和内部的空气快速充分加热，有效解决此前电加热卷烟加热不均匀、炭加热卷烟易烤燃、不易控、香气成分不足、抽吸感差的问题。
2、优选的技术方案中，发热体为大比表面积的铁磁性集束金属纤维丝或者铁磁性多孔隙、发泡固态铁磁性金属块。相比环状、平层或组合式平层金属发热体，本发明的发热体内部具有众多细小的气流通道，对气流分散性更高，可以对流过其表面和内部的空气快速充分加热。
2、优选的技术方案中，本发明首次在发热体5和烟支容纳腔13之间设置匀热器3，在压力差的作用下，其内部的匀热腔32多区域微流动均化热量和压差，匀热腔32内部产生多区域微流动均化热量和压差，到均热孔31，受到抽吸产生的负压后，才把相对均化同时得到一定温度下降的气体吸入到烟支容纳腔13内插入的烟支中，用这些均化后的高温气体对烟支内的烟草部份进行烘烤加热。
3、更优选的技术方案中，因为均热孔31在均热器3顶板的圆周上呈均匀分布、高温气体的分散程度高。与现有的接触式电加热、非接触式电加热、炭加热方法相比，本发明的发烟装置对烟草的烘烤更均匀，更充分，且没有接触式电加热产生的烘烤后的烟草物质粘连、烟草段滞留烟具等问题。
4、此外，本发明的加热杯2上部容纳烟支、下部容纳发热体。发热体主要提供空气加热方式的同时，其余热量通过辐射和空气传导方式传递到加热杯2下部，然后从加热杯2下部直接热传导到加热杯2上部的，因此也对烟支起到烘烤作用。因此本发明的加热杯2设计达到了充分利用热量的目的。
附图说明
图1为实施例1的一种在烟支前端感应加热的发烟装置纵向截面图，右边为局部放大图。
图2为实施例1的发烟装置中空均热器3零件立体示意图。
图3为实施例2的一种在烟支前端感应加热的发烟装置纵向截面图，右边为局部放大图。
附图标记列表：
1、插孔座，2、加热杯，21、集热孔，3、均热器，31、匀热孔，32、均热腔，4、感应线圈，5、发热体，6、屏蔽环，7、隔离层，8、温度传感器，9、真空保温管，10、隔热环，11、中空底座，12、线圈引线，13、烟支容纳腔，14、带有一体式顶板的中空管状结构，141、顶板通孔。
具体实施方式
下面通过具体实施方式进一步说明本发明的内容。
实施例1
如图1-2，实施例1提供一种在烟支前端感应加热的发烟装置，所述发烟装置包括：
插孔座1、非金属中空加热杯2，中空均热器3，感应线圈4，发热体5，屏蔽环6，隔热、绝缘隔离层7、温度传感器8、真空保温管9、隔热环10，中空底座11；
其中，所述加热杯2纵向截面为类H型，材质为加工精度加高的微晶玻璃、陶瓷等耐高温、无毒的非金属的材料。所述加热杯2为一体式结构，包括上部中空结构、下部中空结构和两者之间的挡板，所述上部中空结构包括烟支容纳腔13，所述下部中空结构包括发热体容纳腔，所述挡板上具有连通所述烟支容纳腔13和发热体容纳腔的集热孔21；
所述发热体5包括铁磁性集束金属纤维丝、或者多孔隙、发泡固态铁磁性金属块，所述发热体5设置在所述加热杯2的发热体容纳腔内，所述发热体容纳腔与外界空气连通，所述发热体5内部具有轴向气流通道；
所述感应线圈4包围在所述加热杯2发热体容纳腔的外壁，与电源通过所述线圈引线12连接。感应线圈4最初启动时是手动控制，在抽吸进行的全过程中，发烟装置按温度传感器8探测的温度，对感应线圈4的电参数进行适时的自动调 节，以达到满足烟支抽吸所需热量。
其中，本实施例1的所述铁磁性集束金属纤维丝是指：由铁磁性材料组成的多纤维(单丝直径在0.5-0.001mm)按照金属纤维丝与所述发热体容纳腔轴线平行设置的方式集束在一起的金属纤维丝束。多孔隙、发泡固态铁磁性金属块比表面积也很大，气流通道众多，其加热空气的效果与集束金属纤维丝相近。
所述发热体5设置在发热体容纳腔内，并被下端的隔热环10限位固定。
所述烟支容纳腔13和发热体容纳腔为圆柱体。
所述屏蔽环6材质为非铁磁性材质，包括铝、铜、含有铝或铜的合金，其设置在所述感应线圈4的外围。屏蔽环6为对工作在中、高频范围内的所述感应线圈4产生电磁屏蔽作用，它采用非铁磁性，易加工的铝、铜、铝或铜合金等制成。所述屏蔽环6呈圆环套在、或用薄金属片卷在所述感应线圈4的外侧，以保证通电后的感应线圈4产生的感应磁场不会对本发明的发烟装置外围的铁磁性材料或其它设备产生电磁干扰或感应发热的现象，因此感应线圈4产生的变化磁场才能最大部份地集中作用在铁磁性发热体5上产生涡流而发热。要求屏蔽环6内壁距离感应线圈4最外圆至少0.5mm，屏蔽环6的长度须大于感应线圈4的轴向总长度，且屏蔽环6两端至少大于或等于感应线圈4长度5mm或以上。
所述发烟装置包括两层隔热、绝缘隔离层7，一层隔离层7包裹在所述感应线圈4包围的所述中空加热杯2发热体容纳腔的外壁，另一层隔离层7包裹所述感应线圈4的外部，两层隔离层7之间为所述感应线圈4，即在感应线圈4缠绕的加热腔2外壁上之前和绕后需要包一层隔离层7。这样既能保证感应线圈4工作时的电磁性能，又可保证感应线圈4定位于所述中空加热杯2发热体容纳腔的外壁。所述隔离层7为耐高温的、绝缘、隔热的高温胶布、玻璃纤维或可热缩的高分子材料包裹层。
所述中空加热杯2的上部中空结构内部设置有中空均热器3，其具有顶板，所述顶板上设置若干个呈周向均匀分布的均热孔31，所述中空均热器3内部的中空结构为均热腔32，所述中空均热器3设置在所述烟支容纳腔13的下部，所述均热腔32通过所述均热孔31与所述烟支容纳腔13连通，所述均热腔32通过所述集热孔21与所述发热体容纳腔连通。所述均热孔31的直径为0.3-1mm。
均热器3为中空圆柱体，下端开放，上端具有顶板。均热器3是用过盈配合放置在所述中空加热杯2的上部中空结构内，它采用薄壁，非铁磁性的铝或铜等 材料制成，其外圆柱面与发热腔上部的烟支孔13内壁优选过渡配合。加热杯2为非金属材料，受热后膨胀量小于金属均热器3的膨胀量，因此只要常温下均热器3不会在加热杯2的上部中空结构内部自然滑动即可。
所述温度传感器8设置发热体5的下端部，通过在发热体5下端部打孔的方式，植埋在发热体5中，用于检测发热体5的温度。
所述隔热环10设置在所述发热体5的下端，上端抵靠所述发热体5、下端抵靠所述中空底座11，所述隔热环10和中空底座11内部的中空结构连通外界空气与所述发热体容纳腔。所述隔热环10与所述中空加热杯2下部中空结构内部螺纹连接配合。
所述隔热环10材质为耐高温的陶瓷、或石英玻璃。
所述真空保温管9设置在所述中空加热杯2的外围，且包围所述屏蔽环6。也可以在不影响外形或使用的条件下，再在所述真空保温管9外包裹保温隔热材料或者用其他保温隔热材料代替所述真空保温管9，以尽可能地减少内部所产生的热量散布到外围，从而提高热效率，也避免了造成对发热腔附近的器件、电路等造成损伤，或增加用户的不良体验。当然使用真空保温管9只是一种最佳的方法，不是限定本发明的唯一方法。
所述插孔座1设置在所述非金属中空加热杯2的上端，固定所述加热杯2和保温管9的位置，所述插孔座1具有用于插入烟支的中心通孔。
实施例2
如图3，实施例2提供一种在烟支前端感应加热的发烟装置，与实施例1的区别为：所述中空加热杯2为分体式结构。所述中空加热杯2的上部为中空管状结构，下部为带有一体式顶板的中空管状结构14，所述顶板作为上述所述的挡板，顶板上具有顶板通孔141作为实施例1的集热孔21。所述中空加热杯2的上部和下部之间为卡接。
所述上部中空管状结构为金属材质，方便导热和加工，所述下部带有顶板的中空管状结构14为非金属材质，方便导磁。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种在烟支前端感应加热的发烟装置，其特征在于，所述发烟装置包括：
    中空加热杯(2)、铁磁性发热体(5)、感应线圈(4)；
    其中，所述中空加热杯(2)包括上部中空结构、下部中空结构和两者之间的挡板，所述上部中空结构包括烟支容纳腔(13)，所述下部中空结构包括发热体容纳腔，所述挡板上具有连通所述烟支容纳腔(13)和发热体容纳腔的集热孔(21)；
    所述发热体(5)具有可穿过空气的结构，所述发热体(5)设置在所述中空加热杯(2)的发热体容纳腔内；
    所述感应线圈(4)包围在所述中空加热杯(2)发热体容纳腔的外壁，与电源连接，所述发热体容纳腔与外界空气连通。
  2. 根据权利要求1所述的发烟装置，其特征在于，所述中空加热杯(2)为一体式结构、或者为分体式结构。
  3. 根据权利要求1所述的发烟装置，其特征在于，所述中空加热杯(2)的上部为中空管状结构，下部为带有顶板的中空管状结构(14)，所述顶板作为权利要求1所述的挡板，所述中空加热杯(2)的上部和下部之间为可拆卸连接。
  4. 根据权利要求1所述的发烟装置，其特征在于，所述发烟装置还包括：屏蔽环(6)，其设置在所述感应线圈(4)的外围；
    所述发热体(5)包括铁磁性集束金属纤维丝、或者多孔隙、发泡固态铁磁性金属块。
  5. 根据权利要求1所述的发烟装置，其特征在于，所述发烟装置还包括：两层隔热绝缘隔离层(7)，一层隔离层(7)包裹在所述感应线圈(4)包围的所述中空加热杯(2)发热体容纳腔的外壁，另一层隔离层(7)包裹所述感应线圈(4)的外部，两层隔离层(7)之间为所述感应线圈(4)。
  6. 根据权利要求1所述的发烟装置，其特征在于，所述中空加热杯(2)的上部中空结构内部设置有中空均热器(3)，其具有顶板，所述顶板上设置若干个均热孔(31)，所述中空均热器(3)内部的中空结构为均热腔(32)，所述中空均热器(3)设置在所述烟支容纳腔(13)的下部，所述均热腔(32)通过所述均热孔(31)与所述烟支容纳腔(13)连通，所述均热腔(32)通过所述集热孔(21)与所述发热体容纳腔连通。
  7. 根据权利要求1所述的发烟装置，其特征在于，所述发烟装置还包括： 温度传感器(8)，其埋植于发热体(5)的内部。
  8. 根据权利要求1所述的发烟装置，其特征在于，所述发烟装置还包括：
    隔热环(10)，中空底座(11)；
    其中，所述隔热环(10)设置在所述发热体(5)的下端，上端抵靠所述发热体(5)、下端抵靠所述中空底座(11)，所述隔热环(10)和中空底座(11)内部的中空结构连通外界空气与所述发热体容纳腔。
  9. 根据权利要求1所述的发烟装置，其特征在于，所述发热体(5)内部具有轴向气流通道。
  10. 根据权利要求6所述的发烟装置，其特征在于，所述均热孔(31)在所述均热器(3)顶板上呈周向均匀分布。
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