EP4056058A1 - Structure de passage d'air pour ensemble de vapotage à chauffage de cigarette et ensemble de vapotage à chauffage de cigarette - Google Patents

Structure de passage d'air pour ensemble de vapotage à chauffage de cigarette et ensemble de vapotage à chauffage de cigarette Download PDF

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Publication number
EP4056058A1
EP4056058A1 EP20885471.1A EP20885471A EP4056058A1 EP 4056058 A1 EP4056058 A1 EP 4056058A1 EP 20885471 A EP20885471 A EP 20885471A EP 4056058 A1 EP4056058 A1 EP 4056058A1
Authority
EP
European Patent Office
Prior art keywords
air inlet
vaping
partition plate
air
cigarette heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20885471.1A
Other languages
German (de)
English (en)
Other versions
EP4056058A4 (fr
Inventor
Donglin HAN
Yuchuan HUANG
Li Xie
Yi Bao
Yong Deng
Deqing ZHAO
Yi Zheng
Kun Liang
Jianyang Shi
Lei Tang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Tobacco Sichuan Industrial Co Ltd
Sichuan Sanlian New Material Co Ltd
Original Assignee
China Tobacco Sichuan Industrial Co Ltd
Sichuan Sanlian New Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Tobacco Sichuan Industrial Co Ltd, Sichuan Sanlian New Material Co Ltd filed Critical China Tobacco Sichuan Industrial Co Ltd
Publication of EP4056058A1 publication Critical patent/EP4056058A1/fr
Publication of EP4056058A4 publication Critical patent/EP4056058A4/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the Invention relates to the field of heated cigarette, particularly to a cigarette heating vaping set air passage structure and a cigarette heating vaping set.
  • Cigarette products in which the aroma-producing material containing tobacco components is heated at a temperature around 350°C instead of being burned are already a common knowledge in the field, and these products may be referred to as heated smoke producing products.
  • the heated smoke producing products make the aroma components and other substances in the aroma-producing material to be released through electric heating or other heating methods to generate a smoke that can be sucked, thereby avoiding the generation of a large number of harmful components due to high temperature pyrolysis.
  • the smokers can get a sense of satisfaction, and meanwhile the harm to the human body is reduced and the smoke pollution to the environment is relieved as well.
  • the consumption of heated smoke producing products requires smoking sets, which can electrically heat the smoke producing products to reach the required smoking temperature.
  • the high working temperature inside the smoking set leads to a high temperature of the outer shell of the smoking set, and the user will experience an excessively high temperature when holding it during use (generally, the human body will feel burning when the temperature of an object one touches is higher than 56°C).
  • the technical scheme utilizes the movement of the air in the first flow passage to exchange heat with the cavity, so as to take away part of the heat and preheat the air, which further reduces the heat accumulated on the outer shell, thereby lowering the temperature of the outer shell of the smoking set.
  • the technical scheme can lower the temperature of the outer shell by adding the first flow passage, due to the straight shape of the first air passage, the air flow in the passage is only laminar and it is difficult for the air at the corners to flow, which leads to the circumstance that the air passing through the first flow passage is not uniformly heated and cannot absorb heat properly, and there may be air remaining in the first flow passage, resulting in relatively high temperature of local parts of the outer shell.
  • the temperature of the air entering the cavity is not uniform, which will further affect the reaction inside the cavity.
  • the technical problem to be solved by the Invention is to provide a cigarette heating vaping set air passage structure capable of uniformly preheating air and effectively reducing the temperature of the outer wall.
  • the Invention adopts a cigarette heating vaping set air passage structure, comprising an inner sleeve pipe and an outer wall; a smoke generation chamber is provided in the inner sleeve pipe, the inner sleeve pipe is nested in the outer wall, an air inlet passage is provided between the inner sleeve pipe and the outer wall, the air inlet of the air inlet passage is located at the side close to the suction end of the smoke generation chamber, the air outlet of the air passage is connected to the air inlet end of the smoke generation chamber, and a turbulence generator is provided in the air inlet passage.
  • the smoke generation chamber is used to place and fix the heated smoke producing product, and a heating head of a heater is provided in the smoke generation chamber to keep the temperature at the required level.
  • the air inlet passage is usually formed by utilizing the gap between the inner sleeve pipe and the outer wall, and of course, it can also be formed by cutting grooves or holes in both.
  • the smoke generation chamber has an inlet end and a suction end, with directions the same as a conventional cigarette.
  • the airflow direction of the Invention is as follows: the air enters the air inlet passage from the air inlet, passes through the turbulence generator in the air inlet passage, enters the smoke generation chamber through the air outlet, and then reacts with the heated smoke producing product in the smoke generation chamber to produce smoke, which enters the smoker's mouth through the suction end.
  • the turbulence generator is aimed to promote the air to generate turbulence during the flow process, which is utilized to promote the heat exchange between the air and the air, the inner sleeve pipe as well as the outer wall, so as to avoid excessive accumulation of heat in local parts, and meanwhile preheat the air properly.
  • the turbulence generator works mainly by changing the air flow path, such as using multiple baffles to block the air flow, or changing the shape and path of the air inlet passage, or using a spiral structure to guide the air to rotate. Detailed embodiments will be described below.
  • the air inlet of the air inlet passage is located on the outer wall.
  • the air inlet may be one or more holes made in the outer wall.
  • the turbulence generator comprises at least two partition plates; all the partition plates are arranged at intervals in the air inlet passage and divide a section of the air inlet passage into at least one turbulence generation chamber, each partition plate is provided with ventilation holes, and the projections of the ventilation holes on the adjacent two partition plates do not coincide.
  • the shape of the partition plate should match with the cross-section shape of the air inlet passage to function as a spacer.
  • two or more turbulence generation chambers are provided.
  • the number, shape and size of the ventilation holes should be determined according to the specific design to meet the needs of different products.
  • the direction of projection refers to the axial direction of the smoking set, i.e. the main airflow direction.
  • Do not coincide means that the shape and/or position are different enough to change the airflow path.
  • the projections of all the holes should not coincide.
  • the purpose of ensuring that the projections of the ventilation holes on the two adjacent partition plates do not coincide is to avoid the straight laminar flow of the air flow, and to achieve turbulence by changing the air flow path.
  • the section of the air inlet passage is a circular ring or an elliptical ring, and the cross-section shape of the partition plate is the same as that of the air inlet passage.
  • the shape of the air inlet passage is mainly determined by the shape of the cigarette heating vaping set, and the shape of the cigarette heating vaping set often determines the cross-section shape of the air inlet passage.
  • the partition plate is in a grid shape, the total area of the ventilation holes on the partition plate accounts for 15%-40% of the area of the partition plate, and the area of a single ventilation hole is less than 5% of the area of the entire partition plate.
  • the grid shape means that the ventilation holes should be arranged in an array on the partition plate. A large number of ventilation holes divide the airflow into multiple airflows, which further develop into rotation airflows during collision.
  • ventilation holes on the grid-shape partition plate are in the shape of thin stripes, circles or polygons.
  • the ventilation holes are distributed on the partition plate in an axisymmetric manner.
  • the axis of symmetry is the axis of the smoking set, and the symmetrical distribution can ensure that the airflow is uniformly distributed on the section.
  • the ventilation holes on the partition plate are thin stripes extending radially along the partition plate, the number of ventilation holes is not less than two, and the ventilation holes are distributed on the partition plate in an axisymmetric manner; the distribution density of the ventilation holes of two adjacent partition plates and/or their external tangent angles with the inner sleeve pipe are different.
  • the ventilation holes in the shape of thin stripes can be of radial type or helical type.
  • the partition plate consists of at least two fan blades, and ventilation holes are formed between the fan blades.
  • Another technical problem to be solved by the Invention is to provide a cigarette heating vaping set capable of uniformly preheating air and effectively reducing the temperature of the outer wall.
  • the Invention provides a cigarette heating vaping set, comprising a heater and foregoing cigarette heating vaping set air passage structure, and the heating head of the heater is arranged in the smoke generation chamber.
  • the heater can be a combustion heater or an electric heater, usually an electric heater. If it is a portable smoking set, batteries should be equipped.
  • the temperature control module of the ventilation hole is used to control the heating temperature.
  • the beneficial effect of the Invention is as follows: By setting a turbulence generator in the air inlet passage, the airflow entering the smoking set can generate swirling flows, stop being laminar and form turbulence. In this way, more airflow is able to contact and exchange heat with the outer wall and the inner sleeve pipe, and airflows can also exchange heat, thus effectively reducing the temperature of the outer wall and improving the user experience. At the same time, after heat exchange, the air has already been preheated before entering the smoke generation chamber and will not significantly lower the temperature in the smoke generation chamber when entering the chamber, thus effectively ensuring the reaction temperature. The preheating of the air can also recover part of the energy, so as to achieve the purpose of energy saving, and effectively improve the battery life of the portable smoking set.
  • inner sleeve pipe 1 outer wall 2, smoke generation chamber 3, air inlet passage 4, air inlet 5, suction end 6, turbulence generator 7, partition plate 8, ventilation hole 9, heating head 10, and smoke producing product 11.
  • the Invention comprises an inner sleeve pipe 1 and an outer wall 2; a smoke generation chamber 3 is provided in the inner sleeve pipe 1, the inner sleeve pipe 1 is nested in the outer wall 2, an air inlet passage 4 is provided between the inner sleeve pipe 1 and the outer wall 2, the air inlet 5 of the air inlet passage 4 is located at the side close to the suction end 6 of the smoke generation chamber 3, the air outlet of the air passage is connected to the air inlet end of the smoke generation chamber 3, and a turbulence generator 7 is provided in the air inlet passage 4. Turbulence is a state of fluid motion.
  • the turbulence generator 7 of the Invention utilizes this principle to change the airflow path by narrowing the air inlet passage 4, thus generating turbulence.
  • the turbulence generator 7 has a simple structure.
  • Fig. 1 and Fig. 2 The general working principle of the Invention is shown in Fig. 1 and Fig. 2 .
  • the air enters the air inlet passage 4 from the air inlet 5.
  • the air passes through the turbulence generator 7, its speed and direction change and the airflow starts to rotate to generate turbulence.
  • the heating head 10 is working, the entire inner sleeve pipe 1 is relatively hot, and the air generating the turbulence is able to exchange heat sufficiently with the inner sleeve pipe 1 to achieve the effect of preheating.
  • the preheated air then enters the smoke generation chamber 3 to react with the smoke producing product 11, and the smoke generated eventually enters the smoker's mouth along the smoke producing product 11.
  • the air inlet 5 of the air inlet passage 4 is located on the outer wall 2. It is convenient to cut holes directly on the outer wall 2, and there is no need to provide additional air inlet structures. The shape and number of the holes can be determined according to circumstances.
  • the turbulence generator 7 comprises at least two partition plates 8; all the partition plates 8 are arranged at intervals in the air inlet passage 4 and divide a section of the air inlet passage 4 into at least one turbulence generation chamber, each partition plate 8 is provided with ventilation holes 9, and the projections of the ventilation holes 9 on the adjacent two partition plates 8 do not coincide.
  • the characteristic of this embodiment is to use the partition plates 8 to block the airflow, and then generate new airflow paths by help of the ventilation holes 9 on the partition plates 8. When the airflow passes through the smaller holes all of a sudden, the velocity of the airflow will increase, thus generating turbulence in the turbulence generation chamber.
  • the airflow cannot move in a straight line, but changes its direction to generate a swirling flow, which can promote the heat exchange between the airflows and the heat exchange between the airflow and the outer wall 2 as well as the inner sleeve pipe 1, so as to take away the heat on the outer wall 2 and lower the temperature of the outer wall 2.
  • the preheated air can recover part of the energy, reduce the energy consumption of the heater, and achieve the purpose of energy saving.
  • the cigarette heating vaping set is cylindrical as a whole, and the suction end 6 is approximately a frustum cone.
  • the battery, the power control module and the temperature sensor are omitted in the figure, and only the heating head 10 is shown instead.
  • a gap with a circular ring-shaped section is formed between the outer wall 2 and the inner sleeve pipe 1, and three partition plates 8 are arranged at intervals in the air inlet passage 4, dividing a section of the air inlet passage 4 into two turbulence generation chambers.
  • the shapes of the three partition plates 8 are shown in Fig. 3, Fig. 4 and Fig. 5 .
  • the ventilation holes on each partition plate 8 are thin stripes extending radially along the partition plate 8, the number of ventilation holes is not less than two, and the ventilation holes are distributed on the partition plate 8 in an axisymmetric manner; the external tangent angles between the ventilation holes of two adjacent partition plates 8 and the inner sleeve pipe 1 are different.
  • the ventilation holes on the three partition plates 8 may also be arranged in other manners.
  • the ventilation holes 9 on the two adjacent partition plates 8 have different distribution density, or different external tangent angles and different distribution density.
  • the thin stripe-shaped ventilation holes 9 may be formed by a large number of small hole arrays.
  • the aforementioned partition plates 8 must be arranged in a manner that the adjacent plates do not coincide.
  • the area of a single ventilation hole 9 shall not exceed 5% of the area of the entire partition plate 8.
  • the number of the ventilation holes 9 on each partition plate 8 can be one or more, but it must be ensured that the total area of holes accounts for 15%-40% of the area of the partition plate, so as to ensure that the suction resistance of cigarette during operation of the heater is controlled at 900-1100Pa.
  • the partition plate 8 can be in the shape of thin stripes as shown in the figure, or round holes, square holes or other polygons. The shape should be determined by the actual size of the heater. It needs to be ensured that the projections of ventilation holes 9 of adjacent partition plates 8 must not coincide.
  • the number of partition plates 8 can be 3 or more according to the size of the heater, and the number of turbulence generation chambers thus formed can be 2 or more (at least 2) according to the actual size of the heater.
  • the chambers should be adjacent and the sum of their heights is preferably 80% or more of the length of the inner sleeve pipe of the heater.
  • Embodiment 2 is the same as Embodiment 1 except for the partition plate 8.
  • the partition plate 8 is divided into at least two fan blade-shaped parts by ventilation holes 9.
  • the partition plate 8 has a fan blade shape to rotate the air passing by.
  • the cigarette heating vaping set is an elliptical cylinder as a whole, and the suction end 6 thereof is shown at the top of Fig. 6.
  • Fig. 7 is the diagram for the air passage structure of a cigarette heating vaping set.
  • the outer wall 2 is elliptical
  • the inner sleeve pipe 1 is circular so as to match with the smoke producing product 11.
  • the air inlet passage 4 is formed by the gap between the outer wall 2 and the inner sleeve pipe 1, mainly on both sides.
  • Three partition plates 8 are provided to divide two turbulence generation chambers in the air inlet passage 4. There are large holes arranged on the partition plate 8, and the shape of the holes on each partition plate 8 are different, as shown in Fig.
  • the embodiment has made breakthroughs on the current design of the single linear air inlet passage of cigarette heating vaping set, and adopts the air inlet structure of dual-loop reverse spiral holes.
  • the structure adopts a counter-rotating cooling structure, and generates swirling flows by forming dual-rotation air flows, enhancing the cooling effect of the heater walls, and pre-heated air flows having a more uniformly distributed temperature field are formed, such that the temperature of the smoke being inhaled during suction is suitable, and the utilization rate of the heat source is improved to the maximum extent. It has realized the objective that "the smoke does not burn the mouth and the outer shell does not burn the hand," and effectively improved the consumer experience.
  • the maximum temperature of the wall of the smoking set is 42.5°C, which is 10.9°C lower than the maximum temperature by applying common heaters, which is 53.4°C.
  • Number of cigarettes heated continuously Maximum temperature of the wall by applying the heater described in the patent Maximum temperature of the wall by applying common heaters
  • the heater described in the patent can heat 2-3 more cigarettes than common heaters when both under full power state.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP20885471.1A 2019-11-04 2020-08-19 Structure de passage d'air pour ensemble de vapotage à chauffage de cigarette et ensemble de vapotage à chauffage de cigarette Pending EP4056058A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911066466.0A CN110623313B (zh) 2019-11-04 2019-11-04 加热卷烟烟具气路结构以及加热卷烟烟具
PCT/CN2020/110058 WO2021088463A1 (fr) 2019-11-04 2020-08-19 Structure de passage d'air pour ensemble de vapotage à chauffage de cigarette et ensemble de vapotage à chauffage de cigarette

Publications (2)

Publication Number Publication Date
EP4056058A1 true EP4056058A1 (fr) 2022-09-14
EP4056058A4 EP4056058A4 (fr) 2024-01-03

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Application Number Title Priority Date Filing Date
EP20885471.1A Pending EP4056058A4 (fr) 2019-11-04 2020-08-19 Structure de passage d'air pour ensemble de vapotage à chauffage de cigarette et ensemble de vapotage à chauffage de cigarette

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EP (1) EP4056058A4 (fr)
CN (1) CN110623313B (fr)
UA (1) UA128321C2 (fr)
WO (1) WO2021088463A1 (fr)

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CN111568750B (zh) * 2020-06-05 2022-12-20 珠海易衡慧健康科技有限公司 一种用于阴道艾灸仪的艾烟光热传递气道结构
CN112369696B (zh) * 2020-07-22 2023-02-07 湖北中烟工业有限责任公司 加热不燃烧装置
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CN117547066A (zh) * 2022-08-03 2024-02-13 深圳麦时科技有限公司 加热组件及气溶胶生成装置

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Publication number Publication date
CN110623313B (zh) 2022-04-05
WO2021088463A1 (fr) 2021-05-14
UA128321C2 (uk) 2024-06-05
EP4056058A4 (fr) 2024-01-03
CN110623313A (zh) 2019-12-31

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