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US20240065332A1 - Low-oxygen heating-type smoking set - Google Patents

Low-oxygen heating-type smoking set Download PDF

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Publication number
US20240065332A1
US20240065332A1 US18/259,261 US202018259261A US2024065332A1 US 20240065332 A1 US20240065332 A1 US 20240065332A1 US 202018259261 A US202018259261 A US 202018259261A US 2024065332 A1 US2024065332 A1 US 2024065332A1
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US
United States
Prior art keywords
section
heating
oxygen
cigarette
depleted
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
US18/259,261
Other languages
English (en)
Inventor
Bin Li
Shuang Wang
Ke Zhang
Nan DENG
Le Wang
Feng Huang
Mingjian Zhang
Bing Wang
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.)
Zhengzhou Tobacco Research Institute of CNTC
Original Assignee
Zhengzhou Tobacco Research Institute of CNTC
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 Zhengzhou Tobacco Research Institute of CNTC filed Critical Zhengzhou Tobacco Research Institute of CNTC
Assigned to ZHENGZHOU TOBACCO RESEARCH INSTITUTE OF CNTC reassignment ZHENGZHOU TOBACCO RESEARCH INSTITUTE OF CNTC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DENG, Nan, HUANG, FENG, LI, BIN, WANG, BING, WANG, LE, WANG, SHUANG, ZHANG, KE, ZHANG, Mingjian
Publication of US20240065332A1 publication Critical patent/US20240065332A1/en
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
    • 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
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • the invention belongs to the field of heat-not-burn cigarettes, and particularly relates to an oxygen-depleted heating cigarette assembly.
  • the applied heating temperature is usually lower and generally does not exceed 300° C., compared with the traditional cigarette, the aroma components of the novel heat-not-burn cigarette are difficult to completely release, and the smoke quantity is insufficient, so that the cigarette is difficult to be accepted by traditional smokers.
  • the tobacco ends of the most of heat-not-burn cigarettes have an open structure, that is to say, tobacco shreds or reconstituted tobacco strips are directly exposed to the outside or connected with the external atmosphere through a certain airflow channel, and in the process of pulling out the cigarettes, tobacco residues will fall off, which is easy to cause pollution to the smoking sets, so that such type of tobacco needs time to spend time cleaning the smoking sets after a period of use.
  • the Coanda effect also known as the Coanda effect or the wall effect, refers to the tendency of fluid flow or airflow to leave the original flow direction to flow with the protruding surface due to surface friction when the fluid flows through the surface of the object.
  • the Venturi phenomenon refers to the low pressure generated near the high-speed flowing fluid, resulting in adsorption.
  • the air entering the small hole can flow along the surface of the hollow smoke extraction cone. Due to the existence of the Venturi phenomenon, the gas flowing at a high speed along the surface of the extraction cone will form a negative pressure area at the opening of the extraction cone.
  • the concentration difference and the pressure difference can be formed inside and outside the closed tobacco section, and then the fresh smoke generated by the tobacco section can be extracted by utilizing the active diffusion of the gas.
  • a smoke extraction structure is required to be used in each cigarette, which can greatly increase the production and manufacturing cost of the cigarette. If the smoke extraction structure is separated and reused, the production cost of the cigarette will be effectively saved.
  • the present invention provides an oxygen-depleted heating cigarette assembly which comprises an oxygen-depleted heating smoking set, an oxygen-depleted heating cigarette and an oxygen-depleted heating smoking method.
  • An oxygen-depleted heating smoking set comprises a heating section with a cigarette accommodating cavity formed therein, wherein the oxygen-depleted heating smoking set further comprises a smoke extraction member which can be arranged separately therefrom, the smoke extraction member comprises a hollow smoke extraction cone and a smoke transmission pipe which is fixedly or detachably sleeved on the periphery of a cone body of the smoke extraction cone, a taper hole is provided on a cone apex and/or a side wall of the cone body, at least one through hole is provided on a circumferential side wall of the smoke transmission pipe, and the axial distance of said at least one through hole from a bottom surface of the cone body is smaller than that of the taper hole from the bottom surface of the cone body.
  • a sleeve section extending axially is provided at a bottom end of said cone body of the smoke extraction cone; one end of the smoke transmission pipe far away from said cone body is provided with an inner diameter expansion section which is axially extended.
  • heating elements are arranged on the bottom surface and/or the circumferential side wall of the cigarette accommodating cavity.
  • the oxygen-depleted heating smoking set further comprises a cap, the cap and the heating section are directly detachably connected with each other or detachably connected through a sealing ring, the cap is provided with a gradually expanding inner cavity which is in a truncated cone shape, the apical angle of the cone is not more than 10 degrees, and one end of the cap having a smaller inner diameter is directly or indirectly detachably connected with the heating section.
  • the shape of said smoke extraction member is suitable for the inside of the cigarette accommodating cavity in which the smoke extraction member is accommodated.
  • An oxygen-depleted heated cigarette comprises a tobacco section and a filter section which are detachably connected with each other, wherein one end surface and/or circumferential side face of the tobacco section is sealed by air-tight foil paper.
  • One end of the tobacco section that is not sealed has an axially extending unfilled section
  • the filter section has an exposed section that is not wrapped by the tipping paper
  • the unfilled section and the exposed section are shaped to fit one another such that the exposed section is inserted into the unfilled section when the tobacco section and filter section are connected together.
  • the shape of the unfilled section of the tobacco section is also suitable for being inserted into the sleeve section of said smoke extraction cone, and the shape of said exposed section of said filter tip section is also suitable for being inserted into said inner diameter expansion section of said smoke transmission pipe.
  • a method for smoking an oxygen-depleted heating cigarette by using the oxygen-depleted heating cigarette assembly when smoking, disassembling the tobacco section and the filter tip section of the oxygen-depleted heating cigarette, and assembling said tobacco section and filter tip section respectively into the sleeve sections and the inner diameter expansion section at both ends of the smoke extraction member, so as to form a sectional-type cigarette; then removing the cap of the oxygen-depleted heating smoking set, inserting said tobacco section of the sectional-type cigarette into the cigarette accommodating cavity of the heating section, covering the cap back, starting heating elements arranged at the bottom surface and/or circumferential side wall of the cigarette accommodating cavity for suction.
  • the present invention has following advantages: 1. the air is not used as a carrier, and by using the Venturi effect and the Coanda effect to extract smoke, the oxygen content can be reduced, thus the heating temperature can be greatly increased, which causes both reconstituted tobacco and common cigarette formulas to be utilized by such type of the cigarette, so as to reduce the cost; 2. By using a sealed structure, there is no tobacco residue falling off, and the smoking set is not required to be cleaned frequently; 3. the release of aroma components in the tobacco is more sufficient, easy to release continuously, and the taste is closer to that of the traditional tobacco, which is easier to be accepted by traditional smokers; 4. Through a sectional-type cigarette structural design, the smoke extraction section is reusable, and the production and manufacturing cost is greatly reduced.
  • FIG. 1 is a schematic structural view of an oxygen-depleted cigarette of the present invention when it is combined with a smoke extraction stage,
  • FIG. 2 is an axial cross-sectional view of the explosive structure to be assembled in FIG. 1 ,
  • FIGS. 1 and 2 1 . a tobacco section, 2 . a smoke extraction section, 3 . a filter tip section.
  • FIG. 3 is an axial sectional view of the tobacco section
  • FIG. 3 1 - 1 . the tobacco part, 1 - 2 . the aluminum foil paper, 1 - 3 . the cigarette paper, 1 - 4 . unfilled sections.
  • FIG. 4 is a schematic diagram of the explosive structure to be assembled of the smoke extraction section
  • FIG. 5 is axial sectional view of the explosive structure to be assembled of the smoke extraction section
  • FIGS. 4 and 5 2 - 1 an extraction cone, 2 - 2 a smoke transmission pipe, 2 - 1 - 1 a base, 2 - 1 - 2 cone body, 2 - 1 - 3 a boss, 2 - 1 - 4 a taper hole, 2 - 1 - 5 a sleeve section; 2 - 2 - 1 a slot, 2 - 2 - 2 a through hole, 2 - 2 - 3 a groove.
  • FIG. 6 is a schematic structural view of the filter tip section
  • FIG. 6 3 - 1 , an exposed section, 3 - 2 tipping paper.
  • FIG. 7 is an axial cross-sectional view of an explosive structure to be assembled in the oxygen-depleted heating smoking set.
  • FIG. 7 4 . a heating section, 4 - 1 a cigarette accommodating cavity; 5 . a sealing ring, 6 a cap, 6 - 1 a gradually expanded inner cavity.
  • FIG. 8 is a schematic diagram of an oxygen-depleted heating cigarette (i.e., the structure of a cigarette at the factory).
  • FIG. 9 is a schematic view of the shape and structure of inserting the cigarette into the heating smoking set when smoking.
  • FIG. 10 is a cross-sectional view of the structure of FIG. 9 .
  • FIG. 11 is a schematic view of the smoking set when it is stored.
  • FIGS. 9 , 10 , and 11 A. an oxygen-depleted heating cigarette, B. a heating smoking set, 2 . a smoke extraction section.
  • FIG. 12 is an axial sectional view of the hollow smoke extraction cone (a taper hole is opened on the side wall of the extraction cone).
  • FIG. 12 2 - 1 - 2 , a cone body, 2 - 1 - 4 , a taper hole
  • the present invention will further describe the oxygen-depleted heating smoking set, the oxygen-depleted heating cigarette, and the oxygen-depleted heating cigarette assembly and their using methods one by one in conjunction with the accompanying drawings:
  • An oxygen-depleted heating smoking set as shown in FIGS. 7 , 4 , 5 , 11 and 12 , comprises a heating section ( 4 ), a cigarette accommodating cavity ( 4 - 1 ) is arranged within the heating section ( 4 ), wherein the oxygen-depleted heating smoking set also comprises a smoke extraction member ( 2 ) which can be arranged separately from the smoking set, the smoke extraction member ( 2 ) comprises a hollow smoke extraction cone ( 2 - 1 ) and a smoke transmission pipe ( 2 - 2 ) which is fixedly or detachably sleeved on the periphery of the cone body ( 2 - 1 - 2 ) of the smoke extraction cone ( 2 - 1 ), a taper hole ( 2 - 1 - 4 ) is provided on the cone apex and/or the side wall of the hollow smoke extraction cone ( 2 - 1 ), at least one through hole ( 2 - 2 - 2 ) is provided on the circumferential side wall of the smoke transmission pipe ( 2 - 2
  • the bottom end of the smoke extraction cone ( 2 - 1 ) is provided with an axially extending sleeve section ( 2 - 1 - 5 ); the end of the smoke transmission pipe ( 2 - 2 ) away from the cone body is provided with an axially extended inner diameter expansion section ( 2 - 2 - 3 ) (see FIG. 5 ).
  • the length of the sleeve section ( 2 - 1 - 5 ) is 3-5 mm, and the length of the inner diameter expansion section ( 2 - 2 - 3 ) is equal to the length of the sleeve section ( 2 - 1 - 5 ).
  • the smoke extraction cone ( 2 - 1 ) and the smoke transmission pipe ( 2 - 2 ) are hermetically connected through a boss ( 2 - 1 - 3 ) and a slot (2-2-1) machined on the end surfaces of the bases of the extraction cone and the smoke transmission pipe (see FIG. 5 ).
  • the number of the through holes ( 2 - 2 - 2 ) on the pipe wall of the smoke transmission pipe ( 2 - 2 ) is 2-10, the through holes are uniformly distributed along the circumference thereof, the diameter of each through hole is 0.5-2 mm, the diameter is inversely proportional to the number of the through holes, preferably, the number of the through holes is 2, and the diameter of the through hole is 0.8 mm.
  • the ratio between the length of the extraction cone and the length of the transmission pipe is in the range of 1:3 to 1:6, preferably 1:4.
  • Heating elements are arranged on the bottom surface and/or the circumferential side wall of the cigarette accommodating cavity ( 4 - 1 ).
  • the oxygen-depleted heating smoking set also comprises a cap ( 6 ), the cap and the heating section ( 4 ) are directly detachably connected with each other or detachably connected through a sealing ring ( 5 ), the cap ( 6 ) is provided with a gradually expanded inner cavity ( 6 - 1 ) which is shaped in a truncated cone and the conical apical angle thereof is not greater than 10 degrees, and an end of the cap ( 6 ) with a smaller inner diameter is directly or indirectly detachably connected with the heating section ( 4 ).
  • the configuration of conical apical angle being not greater than 10 degrees is to ensure that air can smoothly enter the smoke transmission pipe through the through hole ( 2 - 2 - 2 ) on the pipe wall of the smoke transmission pipe, so as to realize the extraction effect of the smoke.
  • the heating cavity, the sealing ring and the cap are coaxial, and the cap is connected with the heating cavity in a threaded, buckling or magnetic attraction manner; the sealing ring ( 5 ) is embedded in the heating cavity through a groove machined on the end surface of the heating cavity.
  • the shape of the smoke extraction member ( 2 ) is suitable for being received inside the cigarette accommodating cavity ( 4 - 1 ) of the heating section ( 4 ) (see FIG. 11 ).
  • An oxygen-depleted heating cigarette as shown in FIG. 8 , comprises a tobacco section ( 1 ) and a filter tip section ( 3 ) which are detachably connected with each other, wherein one end surface and/or circumferential side surface of the tobacco section ( 1 ) is sealed by air-tight foil paper.
  • the end of the tobacco section ( 1 ) that is not sealed has an axially extending unfilled section ( 1 - 4 ) (see FIGS. 2 , 3 ), and the filter tip section ( 3 ) has an exposed section ( 3 - 1 ) (see FIG. 6 ) that is not wrapped with the tipping paper ( 3 - 2 ); the shape of the unfilled section and the shape of exposed section are fit to each other, such that when the tobacco section ( 1 ) and the filter section ( 3 ) are connected together, the exposed section ( 3 - 1 ) is inserted into the unfilled section ( 1 - 4 ) (see FIGS. 3 , 6 , 8 ).
  • the tobacco section is a conventional tobacco or reconstituted tobacco sheet base.
  • the length of the unfilled section ( 1 - 4 ) of the tobacco section is 3-5 mm, and the length of the exposed section ( 3 - 1 ) of the filter tip section is equal to the length of the unfilled section ( 1 - 4 ).
  • An oxygen-depleted heating cigarette assembly as shown in FIGS. 9 and 10 , comprises an oxygen-depleted heated smoking set (B) and an oxygen-depleted heating cigarette (A).
  • the shape of the unfilled section ( 1 - 4 ) of the tobacco section ( 1 ) is also suitable for inserting into the sleeve section ( 2 - 1 - 5 ) of the smoke extraction cone ( 2 - 1 ), and the shape of exposed section ( 3 - 1 ) of the filter tip section ( 3 ) is also suitable for inserting into the inner diameter expansion section ( 2 - 2 - 3 ) of the smoke transmission pipe ( 2 - 2 ).
  • the smoking method using the above-mentioned oxygen-depleted heating cigarette assembly comprises following steps: when smoking, disassembling the tobacco section ( 1 ) and the filter tip section ( 3 ) of the oxygen-depleted heating cigarette, and respectively assembling them into the sleeve section ( 2 - 1 - 5 ) and the inner diameter expansion section ( 2 - 2 - 3 ) at both ends of the smoke extraction section ( 2 ) to form a sectional-type cigarette (see the FIGS.
  • the cigarette and the heating smoking set of the present invention are separately placed when leaving the factory, wherein the tobacco section ( 1 ) and the filter tip section ( 3 ) are respectively packaged and then connected and placed together (see FIG. 8 ), and the heating smoking set and the smoke extraction section ( 2 ) are combined together and can be repeatedly used (see FIG. 11 ); when smoking, first, the tobacco section ( 1 ) is separated from the filter tip section ( 3 ), the tobacco section ( 1 ), the smoke extraction section ( 2 ) and the filter tip section ( 3 ) are sequentially plugged to form a sectional-type cigarette to be smoked, and then the sectional-type cigarette to be smoked is inserted into a heating smoking set (see FIGS.
  • the tobacco section ( 1 ) and the filter tip section ( 3 ) are discarded, and the heating smoking set and the smoke extraction section ( 2 ) can be reused.
  • the structure of the oxygen-depleted heating smoking set is shown in FIG. 11 when being stored.
  • the air firstly enters a space between the cap 6 and the sectional-type cigarette, then enters the inside of the smoke transmission pipe through the through hole ( 2 - 2 - 2 ) on the pipe wall of the smoke transmission pipe and is sprayed onto the surface of the extraction cone. Due to the Venturi effect and the Coanda effect, a negative pressure is formed at the position of the taper hole ( 2 - 1 - 4 ); heating the tobacco section may establish a positive pressure at the tobacco section; the existence of the pressure difference between the positive and negative pressure may cause the flow of the smoke, so that the smoke flows out of the taper hole ( 2 - 1 - 4 ) and enters the oral cavity through the smoke transmission pipe cavity and the filter tip.
  • the smoke transmission pipe has the dual functions of smoke extraction and smoke cooling. The smoking resistance of the cigarette can be adjusted by changing the diameter and the position of the through hole ( 2 - 2 - 2 ) on the smoke transmission pipe.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US18/259,261 2020-12-25 2020-12-25 Low-oxygen heating-type smoking set Pending US20240065332A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/139288 WO2022133979A1 (zh) 2020-12-25 2020-12-25 一种贫氧加热式烟具

Publications (1)

Publication Number Publication Date
US20240065332A1 true US20240065332A1 (en) 2024-02-29

Family

ID=82158641

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/259,261 Pending US20240065332A1 (en) 2020-12-25 2020-12-25 Low-oxygen heating-type smoking set

Country Status (5)

Country Link
US (1) US20240065332A1 (ko)
EP (1) EP4268626A4 (ko)
JP (1) JP2024506125A (ko)
KR (1) KR20230128035A (ko)
WO (1) WO2022133979A1 (ko)

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CN106858726B (zh) * 2017-04-20 2018-06-19 深圳市卓力能电子有限公司 一种烧烟草电子烟烟锅结构
KR102330287B1 (ko) * 2018-06-19 2021-11-24 주식회사 케이티앤지 에어로졸 생성 물품 및 에어로졸 생성 물품의 제조 방법
EP3733002A1 (en) * 2019-05-02 2020-11-04 Philip Morris Products S.a.s. Aerosol-generating system comprising venturi element
CN109691695A (zh) * 2019-02-22 2019-04-30 福建绿色黄金生物科技有限公司 烟弹
US20220312851A1 (en) * 2019-06-06 2022-10-06 Philip Morris Products S.A. Aerosol-generating device with separable venturi element
CN112704261B (zh) * 2019-10-25 2023-01-24 中国烟草总公司郑州烟草研究院 一种贫氧加热式卷烟组件
CN213307431U (zh) * 2020-04-28 2021-06-01 云南中烟工业有限责任公司 文丘里效应增强的烟具及包含其的卷烟组件和三段卷烟
CN212414723U (zh) * 2020-04-28 2021-01-29 云南中烟工业有限责任公司 一种插接式贫氧加热烟具及包含其的卷烟组件和三段卷烟
CN212414724U (zh) * 2020-04-28 2021-01-29 云南中烟工业有限责任公司 底部有门的贫氧加热烟具及包含其的卷烟组件
EP4005422B1 (en) * 2020-04-28 2023-11-22 China Tobacco Yunnan Industrial Co., Ltd Plug-in-type low-oxygen heating smoking set and cigarette system including same, and smoking method
CN111588089B (zh) * 2020-05-19 2025-01-21 云南中烟工业有限责任公司 具有可伸缩针的贫氧加热烟具、烟草制品和使用方法

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EP4268626A4 (en) 2024-11-27
JP2024506125A (ja) 2024-02-09
WO2022133979A1 (zh) 2022-06-30
KR20230128035A (ko) 2023-09-01
EP4268626A1 (en) 2023-11-01

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