CN108991603A - A kind of multistage electromagnetic induction heating system of low temperature tobacco - Google Patents
A kind of multistage electromagnetic induction heating system of low temperature tobacco Download PDFInfo
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- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 124
- 241000208125 Nicotiana Species 0.000 title claims abstract description 68
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 68
- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 230000005284 excitation Effects 0.000 claims abstract description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 description 15
- 239000000779 smoke Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229960002715 nicotine Drugs 0.000 description 3
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000019505 tobacco product Nutrition 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
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- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
Landscapes
- General Induction Heating (AREA)
Abstract
本发明涉及一种低温烟草用多级电磁感应加热系统，结构为本发明低温烟草用多级电磁感应加热系统的内壁包裹在整个低温烟草上，外部屏蔽套在内壁之外，若干个电磁感应热源均匀分布在内壁和外部屏蔽之间，相邻电磁感应热源之间设有环形屏蔽；每个电磁感应热源由励磁线圈和电磁极片组成，电磁极片套在内壁上；励磁线圈缠绕在电磁极片上，两端分别与电磁感应电源相连；电磁感应电源与外部的电路控制系统相连，通过电磁感应电源输入电压大小来调节电磁强度。本发明采用多级电磁感应加热系统，可实现由消费者来根据抽吸的次数来开启电磁感应热源的个数，极大增加消费者的消费体验，并且能有效控制电磁感应加热在低温烟草上温度分布，达到均匀加热的效果。
The invention relates to a multi-stage electromagnetic induction heating system for low-temperature tobacco. The structure is that the inner wall of the multi-stage electromagnetic induction heating system for low-temperature tobacco of the present invention is wrapped on the entire low-temperature tobacco, the outer shielding sleeve is outside the inner wall, and several electromagnetic induction heat sources Evenly distributed between the inner wall and the outer shield, and a ring-shaped shield is provided between adjacent electromagnetic induction heat sources; each electromagnetic induction heat source is composed of an excitation coil and an electromagnetic pole piece, and the electromagnetic pole piece is sleeved on the inner wall; the excitation coil is wound on the electromagnetic pole On the chip, both ends are connected to the electromagnetic induction power supply; the electromagnetic induction power supply is connected to the external circuit control system, and the electromagnetic intensity is adjusted through the input voltage of the electromagnetic induction power supply. The present invention adopts a multi-stage electromagnetic induction heating system, which can enable consumers to turn on the number of electromagnetic induction heat sources according to the number of puffs, which greatly increases the consumption experience of consumers, and can effectively control electromagnetic induction heating on low-temperature tobacco Temperature distribution to achieve uniform heating effect.
Description
技术领域technical field
本发明属于新型烟草制品技术领域，具体涉及一种低温烟草用多级电磁感应加热系统。The invention belongs to the technical field of novel tobacco products, and in particular relates to a multi-stage electromagnetic induction heating system for low-temperature tobacco.
背景技术Background technique
传统卷烟燃烧一般需要达到900℃左右，在燃烧和裂解的过程中会释放出近6000种化学物质，这其中大约只有1/3是来自烟草自身，有2/3的化学物质是经过燃烧后新产生的，包括一些像多环芳烃类、一氧化碳、氮氧化物、烯烃类物质等对人体有害的物质。这些有害成分经烟气被人体吸收后会危害吸烟者的健康，还会释放到环境中带来二手烟的问题。有研究表明，尼古丁和多数烟草香味成分在较低温度下(300-500℃)就可以转移到烟气中，所以把卷烟温度降低到600℃以下(烟草燃点约为700℃)，烟气多种有害成分可以大幅度降低，香味成分受到的影响也相对较小。低温卷烟利用特殊热源对烟丝进行加热，加热的温度最高不超过500℃，烟气有害化学成分和生物毒性大幅降低，从而显著减少了对人体和环境的危害。Combustion of traditional cigarettes generally needs to reach about 900°C, and nearly 6,000 chemical substances will be released during the combustion and cracking process, of which only about 1/3 come from the tobacco itself, and 2/3 of the chemical substances are new after combustion. Produced, including some harmful substances such as polycyclic aromatic hydrocarbons, carbon monoxide, nitrogen oxides, and olefins. These harmful components will endanger the health of smokers after being absorbed by the human body through the smoke, and will also be released into the environment to cause the problem of second-hand smoke. Studies have shown that nicotine and most tobacco flavor components can be transferred to smoke at lower temperatures (300-500°C), so reduce the temperature of cigarettes below 600°C (the ignition point of tobacco is about 700°C), and the smoke will be more The three harmful components can be greatly reduced, and the impact on the fragrance components is relatively small. Low-temperature cigarettes use a special heat source to heat the shredded tobacco. The maximum heating temperature does not exceed 500°C. The harmful chemical components and biological toxicity of the smoke are greatly reduced, thereby significantly reducing the harm to the human body and the environment.
低温卷烟烟草制品根据加热方式的不同，可分为电加热型、理化反应加热型(如化学反应、物理结晶等)、燃料加热型(如气态、液态、固态燃料)等，均是不需要燃烧只是通过加热烟丝，烘烤出烟草中的尼古丁和香味物质，来满足吸烟者的需求。According to different heating methods, low-temperature cigarette tobacco products can be divided into electric heating type, physical and chemical reaction heating type (such as chemical reaction, physical crystallization, etc.), fuel heating type (such as gaseous, liquid, solid fuel), etc., all of which do not require burning Just by heating the shredded tobacco, the nicotine and flavor substances in the tobacco are baked to meet the needs of smokers.
电磁感应加热，是通过电子线路板组成部分产生交变磁场，对应金属表面切割交变磁力线从而产生交变的电流(即涡流)，涡流使金属原子高速无规则运动，原子互相碰撞、摩擦而产生热能，起到加热物品的效果。但是目前单级电磁感应加热技术，由于磁场强度分布存在衰减，导致低温烟草受热不均，烟草中的尼古丁和香味物质挥发不均，温度不宜控制，大大降低消费者的消费体验。Electromagnetic induction heating is to generate an alternating magnetic field through the components of the electronic circuit board, and cut the alternating magnetic force line corresponding to the metal surface to generate an alternating current (ie, eddy current). The eddy current makes the metal atoms move at high speed and irregularly, and the atoms collide and rub against each other. Thermal energy, which has the effect of heating objects. However, the current single-stage electromagnetic induction heating technology, due to the attenuation of the magnetic field strength distribution, leads to uneven heating of low-temperature tobacco, uneven volatilization of nicotine and flavor substances in tobacco, and unsuitable temperature control, which greatly reduces the consumption experience of consumers.
发明内容Contents of the invention
本发明针对上述现有技术所存在的不足，而提出一种低温烟草用多级电磁感应加热系统，不仅从原理结构上，彻底解决了电磁感应加热低温烟草不均匀的现象，而且消费者可根据自身抽吸数量的需求，自主开关单个电磁感应热源，极大的增加消费者的消费体验，同时与之配套的低温烟草结构简单，对低温烟草外观制作要求降低，降低了电磁感应低温烟草的制备难度。The present invention aims at the deficiencies in the above-mentioned prior art, and proposes a multi-stage electromagnetic induction heating system for low-temperature tobacco, which not only completely solves the phenomenon of uneven heating of low-temperature tobacco by electromagnetic induction in terms of principle and structure, but also consumers can according to The demand for the number of self-puffs, independent switching of a single electromagnetic induction heat source, greatly increases the consumption experience of consumers, and at the same time, the supporting low-temperature tobacco has a simple structure, reduces the requirements for the appearance of low-temperature tobacco, and reduces the preparation of electromagnetic induction low-temperature tobacco difficulty.
一种低温烟草用多级电磁感应加热系统，包括：电磁感应电源、若干个电磁感应热源、若干环形屏蔽、外部屏蔽、内壁，所述的低温烟草内含有电磁感应接收介质，且外形为圆柱体或立方体，其特征在于：内壁包裹在整个低温烟草上，外部屏蔽套在内壁之外，若干个电磁感应热源均匀分布在内壁和外部屏蔽之间，相邻电磁感应热源之间设有环形屏蔽；每个电磁感应热源由励磁线圈和电磁极片组成，电磁极片套在内壁上；励磁线圈缠绕在电磁极片上，两端分别与电磁感应电源相连；电磁感应电源与外部的电路控制系统相连，通过电磁感应电源输入电压大小来调节电磁强度。A multi-stage electromagnetic induction heating system for low-temperature tobacco, comprising: an electromagnetic induction power supply, several electromagnetic induction heat sources, several annular shields, an external shield, and an inner wall. The low-temperature tobacco contains an electromagnetic induction receiving medium, and its shape is a cylinder or a cube, characterized in that: the inner wall is wrapped on the entire low-temperature tobacco, the outer shield is set outside the inner wall, several electromagnetic induction heat sources are evenly distributed between the inner wall and the outer shield, and ring-shaped shields are provided between adjacent electromagnetic induction heat sources; Each electromagnetic induction heat source is composed of an excitation coil and an electromagnetic pole piece, the electromagnetic pole piece is set on the inner wall; the excitation coil is wound on the electromagnetic pole piece, and both ends are respectively connected with the electromagnetic induction power supply; the electromagnetic induction power supply is connected with the external circuit control system, The electromagnetic intensity is adjusted by the input voltage of the electromagnetic induction power supply.
相邻电磁感应热源之间被环形屏蔽隔离了电磁，使电磁感应热源之间没有互相干扰，外部屏蔽包裹电磁感应热源避免电磁外泄，内壁隔绝保护低温烟草与电磁感应热源的接触保证热源不受污染。每个独立的励磁线圈通过环形屏蔽进行各自电磁绝缘。励磁线圈通过交变电流后产生交变磁场，交变磁场在电磁感应接收介质上产生交变电流(即涡流)，从而产生热量。Adjacent electromagnetic induction heat sources are shielded electromagnetically by annular shielding, so that there is no mutual interference between electromagnetic induction heat sources. The outer shield wraps electromagnetic induction heat sources to avoid electromagnetic leakage, and the inner wall is isolated to protect the contact between low-temperature tobacco and electromagnetic induction heat sources to ensure that heat sources are not affected. Pollution. Each individual field coil is individually electromagnetically insulated by a ring shield. The excitation coil generates an alternating magnetic field after passing an alternating current, and the alternating magnetic field generates an alternating current (ie, eddy current) on the electromagnetic induction receiving medium, thereby generating heat.
所述的所有励磁线圈、环形屏蔽、外部屏蔽、电磁极片、内壁全部同轴。All the excitation coils, annular shielding, external shielding, electromagnetic pole pieces and inner walls are all coaxial.
电磁感应电源为交变电源，由锂电池通过变频器进行交变转化而成。The electromagnetic induction power supply is an alternating power supply, which is alternately converted by a lithium battery through a frequency converter.
所述电磁感应热源的个数为含有电磁感应接收介质的低温烟草的抽吸次数的约数。The number of the electromagnetic induction heat sources is a subnumber of the number of puffs of the low-temperature tobacco containing the electromagnetic induction receiving medium.
所述的环形屏蔽和外部屏蔽采用铜、铝、银、铁或铁素体金属材料制作而成。The annular shield and the outer shield are made of copper, aluminum, silver, iron or ferrite metal materials.
所述的环形屏蔽和外部屏蔽采用导电碳黑或能屏蔽磁力的高分子有机物制作而成。The annular shield and the outer shield are made of conductive carbon black or high molecular organic matter capable of shielding magnetic force.
所述的电磁极片采用铁素体材料制作成环形或方形且具有中空结构。电磁极片作用是将产生的交变磁场发散方向指向含有电磁感应接收介质的低温烟草。The electromagnetic pole piece is made of ferrite material into a ring or a square shape and has a hollow structure. The role of the electromagnetic pole piece is to direct the divergence direction of the generated alternating magnetic field to the low-temperature tobacco containing the electromagnetic induction receiving medium.
所述的内壁所述的内壁采用氧化锆或氧化铝陶瓷无机材料制作而成。氧化锆或氧化铝陶瓷为透磁材料，氧化锆或氧化铝陶瓷无机材料耐高温，不释放异味的环保材料；氧化锆或氧化铝陶瓷内壁将含有电磁接收介质的低温烟草固定，并且开有气路空洞，抽吸气路的通畅。The inner wall The inner wall is made of zirconia or alumina ceramic inorganic material. Zirconia or alumina ceramics are magnetically permeable materials, zirconia or alumina ceramics are inorganic materials that are resistant to high temperatures and are environmentally friendly materials that do not release odors; the inner wall of zirconia or alumina ceramics fixes the low-temperature tobacco containing electromagnetic receiving media, and has a gas The air path is hollow, and the suction air path is unobstructed.
所述的电磁感应接收介质为铝、导电碳、石墨、不锈钢、铜、青铜、铁、合金中之一或二者以上的组合。The electromagnetic induction receiving medium is one of aluminum, conductive carbon, graphite, stainless steel, copper, bronze, iron, alloy or a combination of two or more.
所述的电磁感应接收介质按以下任何一种方式或二者以上组合方式分布：分散在低温烟草中、包裹低温烟草、呈棒状/片状放置在低温烟草内部。The electromagnetic induction receiving medium is distributed in any one of the following ways or a combination of two or more ways: dispersed in the low-temperature tobacco, wrapped in the low-temperature tobacco, placed inside the low-temperature tobacco in the form of rods/sheets.
单个电磁感应热源所包含的励磁线圈一旦通过交变电流，则产生交变磁场，电磁极片将磁场发散方向指向含有电磁感应接收介质的低温烟草。由于环形屏蔽将单个电磁感应热源所产生交变磁场进行隔离，使得相邻单个电磁感应加热源互不干扰，同时内壁将低温烟草固定，因此低温烟草中的电磁接收介质只接收固定单个电磁感应热源所发射的交变电磁场，然后产生涡流，开始加热低温烟草，从而达到单个电磁感应热源加热固定区域低温烟草的效果，实现低温烟草的定点电磁加热。Once the excitation coil contained in a single electromagnetic induction heat source passes through an alternating current, an alternating magnetic field is generated, and the electromagnetic pole piece directs the divergence direction of the magnetic field to the low-temperature tobacco containing the electromagnetic induction receiving medium. Because the ring shield isolates the alternating magnetic field generated by a single electromagnetic induction heat source, so that adjacent single electromagnetic induction heat sources do not interfere with each other, and the inner wall fixes the low-temperature tobacco, so the electromagnetic receiving medium in the low-temperature tobacco only receives and fixes a single electromagnetic induction heat source The emitted alternating electromagnetic field then generates eddy currents and begins to heat the low-temperature tobacco, thereby achieving the effect of a single electromagnetic induction heat source heating the low-temperature tobacco in a fixed area, and realizing fixed-point electromagnetic heating of the low-temperature tobacco.
由于电磁穿透和传播的特性，所述的含有电磁感应接收材料的低温烟草即使与内壁之间有间隙，也不会影响电磁热源加热的效果，因此对含有电磁感应接收介质的低温烟草在外形制作上没有非常严格的尺寸公差和曲率公差。Due to the characteristics of electromagnetic penetration and transmission, even if there is a gap between the low-temperature tobacco containing the electromagnetic induction receiving material and the inner wall, it will not affect the heating effect of the electromagnetic heat source. There are no very strict dimensional and curvature tolerances in production.
含有电磁感应接收介质的低温烟草抽吸顺序是可以根据消费者自己的意愿任意抽吸，但是最优的顺序是从距离消费者最远端的底部开始，沿轴线顺序依次逐个打开单个电磁感应加热源，进行抽吸。The smoking sequence of low-temperature tobacco containing electromagnetic induction receiving medium can be smoked arbitrarily according to the consumer's own wishes, but the optimal sequence is to start from the bottom farthest from the consumer, and turn on the individual electromagnetic induction heating one by one along the axis sequentially. source for suction.
所述包裹低温烟草的纸张具有高磁性的耐火纸，不会被涡流加热渗透，不会被磁性物质烧穿。The paper wrapping the low-temperature tobacco has high magnetic fire-resistant paper, which will not be penetrated by eddy current heating and will not be burned through by magnetic substances.
所述的电磁感应接收介质层厚度为0.01至1mm。如果介质层太薄，例如远低于集肤深度，涡流转化为热能的转化率降低。如果介质层太厚，例如，大于三个集肤深度，会产生高转换效率，但介质层的热负载增加，减小热传导速度。例如约550高斯左右的磁场强度下，约0.07mm的厚度为宜。一般来讲，磁通量在近似值400和800高斯之间比较好。The thickness of the electromagnetic induction receiving medium layer is 0.01 to 1mm. If the dielectric layer is too thin, eg far below the skin depth, the conversion rate of eddy currents to heat energy is reduced. If the dielectric layer is too thick, for example, greater than three skin depths, high conversion efficiency results, but the heat load on the dielectric layer increases, reducing the heat conduction velocity. For example, at a magnetic field strength of about 550 gauss, a thickness of about 0.07 mm is suitable. In general, a magnetic flux between approximately 400 and 800 Gauss is good.
所述的电路控制系统是指通过逻辑电路对多级电磁感应热源开关及电压进行控制，达到温控效果和自主控制抽吸次数的效果。The circuit control system refers to controlling the multi-stage electromagnetic induction heat source switch and voltage through a logic circuit, so as to achieve the effect of temperature control and independent control of the number of pumping times.
本发明所涉及的多级电磁感应加热系统中，单个电磁感应加热电源，加热电磁感应接收介质从室温到500℃，从理论上讲所需最小功率为3.5W，时间为大约1秒钟。较单级电磁感应加热系统加热所需1-5秒而言，由于所承载的加热段较小，加热速度较高。并且充分利用多级电磁加热各电磁加热源逐个加热的优势，使得低温烟草受热更加充分，加热更加均匀，温度更好控制，消费者自主加热的突破性模式极大的增加了消费体验满足感。In the multi-stage electromagnetic induction heating system involved in the present invention, a single electromagnetic induction heating power supply can heat the electromagnetic induction receiving medium from room temperature to 500°C, theoretically the required minimum power is 3.5W, and the time is about 1 second. Compared with the 1-5 seconds required by the single-stage electromagnetic induction heating system, the heating speed is higher due to the smaller heating section. And make full use of the advantages of multi-stage electromagnetic heating, each electromagnetic heating source is heated one by one, so that the low-temperature tobacco is heated more fully, the heating is more uniform, and the temperature is better controlled. The breakthrough mode of consumer self-heating greatly increases the satisfaction of consumer experience.
附图说明Description of drawings
图1为本发明的结构剖视图。Fig. 1 is a structural sectional view of the present invention.
图2为图1中A-A面的剖视图。Fig. 2 is a sectional view of plane A-A in Fig. 1 .
图3为本发明所涉及的含有组合结构电磁感应接收介质的低温烟草剖视图。Fig. 3 is a cross-sectional view of the low-temperature tobacco containing the electromagnetic induction receiving medium of the combined structure involved in the present invention.
图中：1－电磁感应电源，2－内壁，3－环形屏蔽，4－励磁线圈，5-外部屏蔽，6-环形极片，7-耐火纸外包层，8-电磁感应接收介质层，9-低温烟草，10-电磁感应接收介质颗粒，11-电磁感应接收棒。In the figure: 1-electromagnetic induction power supply, 2-inner wall, 3-annular shielding, 4-excitation coil, 5-external shielding, 6-annular pole piece, 7-refractory paper outer cladding, 8-electromagnetic induction receiving medium layer, 9 - low temperature tobacco, 10 - electromagnetic induction receiving medium particles, 11 - electromagnetic induction receiving rod.
具体实施方式Detailed ways
结合附图及实施例对本发明作进一步的描述。The present invention will be further described in conjunction with the accompanying drawings and embodiments.
如图1、图2、图3所示，包括：本发明包括电磁感应电源1、若干个电磁感应热源、若干环形屏蔽3、外部屏蔽5、内壁2，所述的低温烟草内含有电磁感应接收介质(10，11)，且外形为圆柱体，本发明的电磁感应电源1为LC振荡电源，其特征在于：内壁2包裹在整个低温烟草上，外部屏蔽5套在内壁2之外，若干个电磁感应热源均匀分布在内壁2和外部屏蔽5之间，相邻电磁感应热源之间设有环形屏蔽3；每个电磁感应热源由励磁线圈4和电磁极片6组成，电磁极片6套在内壁2上；励磁线圈4缠绕在电磁极片6上，两端分别与电磁感应电源1相连；电磁感应电源1与外部的电路控制系统相连，通过电磁感应电源1输入电压大小来调节电磁强度。As shown in Figure 1, Figure 2 and Figure 3, it includes: the present invention includes an electromagnetic induction power supply 1, several electromagnetic induction heat sources, several annular shields 3, an external shield 5, and an inner wall 2, and the low-temperature tobacco contains electromagnetic induction receiving Medium (10, 11), and the shape is a cylinder. The electromagnetic induction power supply 1 of the present invention is an LC oscillating power supply. It is characterized in that: the inner wall 2 is wrapped on the entire low-temperature tobacco, and the outer shielding 5 is set outside the inner wall 2. Several The electromagnetic induction heat source is evenly distributed between the inner wall 2 and the outer shield 5, and an annular shield 3 is provided between adjacent electromagnetic induction heat sources; each electromagnetic induction heat source is composed of an excitation coil 4 and an electromagnetic pole piece 6, and the electromagnetic pole piece 6 is set on On the inner wall 2; the excitation coil 4 is wound on the electromagnetic pole piece 6, and the two ends are respectively connected with the electromagnetic induction power supply 1; the electromagnetic induction power supply 1 is connected with the external circuit control system, and the electromagnetic intensity is adjusted through the input voltage of the electromagnetic induction power supply 1.
相邻电磁感应热源之间被环形屏蔽3隔离了电磁，使电磁感应热源之间没有互相干扰，外部屏蔽5包裹电磁感应热源避免电磁外泄，内壁2隔绝保护低温烟草与电磁感应热源的接触保证热源不受污染。每个独立的励磁线圈4通过环形屏蔽3进行各自电磁绝缘。励磁线圈4通过交变电流后产生交变磁场，交变磁场在电磁感应接收介质上产生交变电流(即涡流)，从而产生热量。The adjacent electromagnetic induction heat sources are isolated from the electromagnetic field by the annular shield 3, so that there is no mutual interference between the electromagnetic induction heat sources. The outer shield 5 wraps the electromagnetic induction heat sources to avoid electromagnetic leakage, and the inner wall 2 isolates and protects the contact between the low-temperature tobacco and the electromagnetic induction heat sources. The heat source is free from contamination. Each individual excitation coil 4 is individually electromagnetically insulated by the annular shield 3 . The exciting coil 4 generates an alternating magnetic field after passing the alternating current, and the alternating magnetic field generates an alternating current (ie, eddy current) on the electromagnetic induction receiving medium, thereby generating heat.
图3中含有电磁感应接收介质的低温卷烟直径可以是标准烟直径7.8mm或5.4mm，也可以是其他直径尺寸，长度可根据需要进行调整。电磁感应热源、环形屏蔽、外部屏蔽、电磁极片、内壁直径可根据实际情况进行调整，电磁感应热源的个数一般可为3-5个，是低温烟草抽吸次数的约数即可。The diameter of the low-temperature cigarette containing the electromagnetic induction receiving medium in Fig. 3 can be a standard cigarette diameter of 7.8mm or 5.4mm, or other diameters, and the length can be adjusted as required. The electromagnetic induction heat source, annular shield, external shield, electromagnetic pole piece, and inner wall diameter can be adjusted according to the actual situation. The number of electromagnetic induction heat sources can generally be 3-5, which is an approximate number of the number of low-temperature tobacco puffs.
实施例1：Example 1:
(1)低温卷烟采用纸张包裹电磁感应接收介质层，介质层再包裹低温烟草，低温烟草内部不含有电磁感应接收介质的结构模式。介质层采用0.07mm的铁箔。低温卷烟采用直径为5.4mm的标准圆柱形香烟作为外形尺寸，同时设定了电磁感应热源、环形屏蔽、外部屏蔽、电磁极片、内壁与5.4mm标准圆柱形香烟匹配的直径尺寸。(1) Low-temperature cigarettes use paper to wrap the electromagnetic induction receiving medium layer, and the medium layer is then wrapped with low-temperature tobacco. The low-temperature tobacco does not contain a structural model of electromagnetic induction receiving medium. The dielectric layer adopts 0.07mm iron foil. The low-temperature cigarette adopts a standard cylindrical cigarette with a diameter of 5.4mm as the outer dimension, and sets the diameter size of the electromagnetic induction heat source, annular shield, external shield, electromagnetic pole piece, and inner wall to match the standard cylindrical cigarette with a diameter of 5.4mm.
(2)电磁感应热源按5.4mm的标准烟抽吸9口计算，取一个电磁感应热源可供抽吸3口低温烟草，因此电磁感应热源采用3个，每个含有1个铁素体电磁极片及一组励磁线圈。励磁线圈经通交流电后产生的磁通量为550高斯。(2) The electromagnetic induction heat source is calculated according to the standard smoke of 5.4mm to suck 9 mouths, and one electromagnetic induction heat source can be used to suck 3 mouths of low-temperature tobacco, so three electromagnetic induction heat sources are used, each containing 1 ferrite electromagnetic pole sheet and a set of exciting coils. The magnetic flux generated by the exciting coil is 550 gauss after passing through the alternating current.
(3)环形屏蔽的数量为2个，采用金属铝作为其材质，根据电磁感应热源的尺寸来填充。(3) The number of annular shields is 2, and metal aluminum is used as its material, and it is filled according to the size of the electromagnetic induction heat source.
(4)外部屏蔽采用不锈钢材质对整个多级电磁加热器具进行外层包裹。(4) The external shield is made of stainless steel to wrap the entire multi-stage electromagnetic heating appliance.
(5)内壁采用0.5mm厚的氧化锆陶瓷材料。(5) The inner wall is made of 0.5mm thick zirconia ceramic material.
(6)电路设计采取3.7V直流电源，经逻辑电路形成交变电流，并且3个电磁感应热源由3个开关可由使用者自行控制。(6) The circuit design uses a 3.7V DC power supply to form an alternating current through a logic circuit, and the 3 electromagnetic induction heat sources can be controlled by the user by 3 switches.
本实例所制备的直径5.4mm多级电磁感应加热系统，通电后从离使用者最远处的底端开始逐一打开电磁感应热源。在使用体验时，每开一个电磁感应热源，均能保证3口的抽吸体验，中间可以随时间断，后续可随时继续使用，而且加热过程基本在2秒内完成，极大增加了使用体验。In the multi-stage electromagnetic induction heating system with a diameter of 5.4 mm prepared in this example, the electromagnetic induction heat sources are turned on one by one from the bottom end farthest from the user after power-on. During the use experience, every time an electromagnetic induction heat source is turned on, the suction experience of 3 mouths can be guaranteed. The middle can be interrupted at any time, and the subsequent use can be continued at any time, and the heating process is basically completed within 2 seconds, which greatly increases the use experience.
实施例2：Example 2:
(1)低温卷烟采用电磁感应接收介质在低温烟草内部分散存在，外围不再包裹介质层的结构模式。加热介质采用1mm直径，3mm长度的圆柱体铝颗粒。低温卷烟采用直径为7.8mm的标准圆柱形香烟作为外形尺寸，同时设定了电磁感应热源、环形屏蔽、外部屏蔽、电磁极片、内壁与7.8mm标准圆柱形香烟匹配的直径尺寸。(1) The low-temperature cigarette adopts the structure mode in which the electromagnetic induction receiving medium is scattered inside the low-temperature tobacco, and the periphery is no longer wrapped with a medium layer. The heating medium adopts cylindrical aluminum particles with a diameter of 1 mm and a length of 3 mm. The low-temperature cigarette adopts a standard cylindrical cigarette with a diameter of 7.8mm as the outer dimension, and sets the diameter size of the electromagnetic induction heat source, annular shield, external shield, electromagnetic pole piece, and inner wall to match the standard cylindrical cigarette of 7.8mm.
(2)电磁感应热源按7.8mm的标准烟抽吸15口计算，取一个电磁感应热源可供抽吸3口低温烟草，因此电磁感应热源采用5个，每个含有1个铁素体电磁极片及一组励磁线圈。励磁线圈经通交流电后产生的磁通量为550高斯。(2) The electromagnetic induction heat source is calculated based on 15 puffs of standard smoke of 7.8mm, and one electromagnetic induction heat source can be used to suck 3 puffs of low-temperature tobacco. Therefore, 5 electromagnetic induction heat sources are used, each containing 1 ferrite electromagnetic pole sheet and a set of exciting coils. The magnetic flux generated by the exciting coil is 550 gauss after passing through the alternating current.
(3)环形屏蔽的数量为4个，采用不锈钢作为其材质，根据电磁感应热源的尺寸来填充。(3) The number of annular shields is 4, which are made of stainless steel and filled according to the size of the electromagnetic induction heat source.
(4)外部屏蔽采用不锈钢材质对整个多级电磁加热器具进行外层包裹。(4) The external shield is made of stainless steel to wrap the entire multi-stage electromagnetic heating appliance.
(5)内壁采用0.5mm厚的氧化铝陶瓷材料。(5) The inner wall is made of alumina ceramic material with a thickness of 0.5 mm.
(6)电路设计采取3.7V直流电源，经逻辑电路形成交变电流，并且5个电磁感应热源由5个开关可由使用者自行控制。(6) The circuit design uses a 3.7V DC power supply to form an alternating current through a logic circuit, and the 5 electromagnetic induction heat sources can be controlled by the user by 5 switches.
本实例所制备制备的直径7.8mm多级电磁感应加热系统，使用体验与实例1相比，均能达到相同的使用体验。Compared with Example 1, the use experience of the multi-stage electromagnetic induction heating system with a diameter of 7.8mm prepared in this example can achieve the same use experience.
实施例3：Example 3:
本实施例与实施例2相同，区别仅在于：This embodiment is the same as Embodiment 2, the difference is only in:
(1)低温卷烟采用纸张包裹电磁感应接收介质层，介质层再包裹低温烟草，低温烟草内部含有电磁感应接收介质的组合结构模式。(1) Low-temperature cigarettes use paper to wrap the electromagnetic induction receiving medium layer, and the medium layer is then wrapped with low-temperature tobacco. The low-temperature tobacco contains a combined structural model of electromagnetic induction receiving medium.
(2)环形屏蔽采用金属铁作为其材质。(2) The annular shield is made of metal iron as its material.
本实例所制备制备的直径7.8mm多级电磁感应加热系统，烟支采用电磁感应接收介质外包和内部分散的组合结构，在相同的磁场强度下，发热速度更快，但每开一个电磁感应热源，较难维持3口的抽吸体验，但2口的抽吸体验能够保证。The multi-stage electromagnetic induction heating system with a diameter of 7.8 mm prepared in this example adopts a combined structure of electromagnetic induction receiving medium outsourcing and internal dispersion. Under the same magnetic field strength, the heating speed is faster, but each time an electromagnetic induction heat source is turned on , it is difficult to maintain the suction experience of 3 puffs, but the puffing experience of 2 puffs can be guaranteed.
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