Granular heating cigarette
By introducing separators and ventilation holes into granular heated cigarettes, the problems of airflow channel blockage and insufficient heating caused by tobacco particle aggregation are solved, resulting in better smoke generation and smoke production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO YUNNAN IND
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
In existing granular heated cigarettes, tobacco particles tend to accumulate in the hollow cavity of the hollow cylindrical structure, leading to problems such as blocked airflow channels, insufficient heating, and reduced smoke volume.
Design an isolation element comprising a hollow section with baffles and vents to prevent tobacco particle aggregation, and optimize airflow channels through axial venting grooves and a frustum structure to enhance heating uniformity and smoke generation.
It effectively prevents tobacco particles from accumulating in the hollow section, reduces airflow obstruction, improves heating uniformity and smoke volume, and enhances the smoke generation effect.
Smart Images
Figure CN224165676U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heated cigarette technology, specifically relating to a granular heated cigarette. Background Technology
[0002] Particle-type cigarettes are a new type of heated-not-burn (HNB) cigarette that has emerged in recent years. They use tobacco particles instead of tobacco sheets as the smoke-generating material. Tobacco particles are heated more evenly than tobacco sheets, and the smoke diffuses more smoothly along the gaps between the particles than in tobacco sheet-type HNB cigarettes, making them very popular with consumers.
[0003] Pellete-type cigarettes are typically formed by filling tobacco granules into a paper tube sealed at the distal lip to create a granule segment. Downstream of this granule segment are a porous fastener segment (or sealing and limiting segment), a cooling segment (which can be a perforated cavity segment or a cavity segment filled with cooling material), and a filter segment. Because tobacco granules are loose and fluid, if left unrestrained, they will flow into the downstream cavity segment when the cigarette is placed horizontally. These downstream tobacco granules cannot be effectively heated by the heater, affecting the smoking effect. Therefore, all current granule-type cigarette structures are designed with components to restrain the tobacco granules and prevent them from flowing freely. The upstream of the granules is usually restrained by a sealing film, and the downstream is restrained by a porous fastener segment.
[0004] Currently, porous fasteners used in granular heated cigarettes often employ a design with recessed ends and a central depression, such as a hollow cylindrical structure with open ends. This design suffers from the problem of tobacco particles agglomerating and clumping at the recessed areas. In other words, tobacco particles accumulate within the hollow cavity of the cylindrical structure. This problem leads to three adverse effects: first, the agglomerated particles block the airflow channels, increasing the draw resistance of the granular heated cigarette; second, the agglomerated particles are farther from the heat source, resulting in insufficient heating and affecting the smoke production effect; and third, the agglomerated particles trap aerosols, reducing the amount of smoke produced.
[0005] This application is submitted in order to address the above issues. Utility Model Content
[0006] This application provides a granular heated cigarette, the granular heated cigarette comprising: a tobacco granule segment I and a hollow segment II disposed from the distal lip end to the proximal lip end;
[0007] The hollow section II is provided with an isolation element IV. The outer wall of the isolation element IV is a columnar structure with a hollow cavity inside. The distal lip of the isolation element IV is provided with a baffle 1, and the baffle 1 is provided with a vent hole 2 to allow airflow to pass through.
[0008] The near-lip end of the isolator IV may or may not have a baffle. When the near-lip end of the isolator IV is provided with an end cap, the cavity inside the isolator IV may be filled with flavoring particles or cooling particles to further enhance the flavor or cool the temperature.
[0009] Preferably, the outer wall of the isolation element IV has a plurality of venting grooves 4 extending along the axial direction to provide airflow channels.
[0010] Preferably, the lip end of the spacer IV is an open end.
[0011] Preferably, there are multiple vent holes 2. The multiple vent holes 2 are evenly distributed on the baffle 1.
[0012] Preferably, the axial length of the separator IV is less than or equal to the axial length of the hollow section II.
[0013] Preferably, the axial length of the separator IV is less than the axial length of the hollow section II, and the distal lip end of the separator IV abuts against the tobacco particle section I.
[0014] Preferably, the distal lip of the spacer IV has a chamfer.
[0015] Preferably, the hollow cavity of the separator IV has a frustum-shaped structure, and the diameter of the distal lip of the hollow cavity is larger than the diameter of the proximal lip of the hollow cavity.
[0016] Preferably, the granular heated cigarette further includes a filter section III located near the lip end of the granular heated cigarette. In other words, the tobacco granule section I, the hollow section II, and the filter section III are arranged sequentially from the distal lip end to the proximal lip end.
[0017] Preferably, the tobacco particle segment I includes: a first section of the cigarette tube and tobacco particles therein; the hollow segment II includes: a second section of the cigarette tube and a separator IV therein; and the filter segment III includes: a third section of the cigarette tube and a filter therein.
[0018] Preferably, the size of the vent 2 is smaller than the size of the tobacco particle.
[0019] The material for the spacer IV can be high-temperature safe polypropylene (PP), polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), polycarbonate (PC), polylactic acid (PLA), polyhydroxyalkanoates (PHA), polyethylene terephthalate (PET), etc., and the manufacturing method can be injection molding or other processes. The spacer IV can also be made of ceramic or paper materials.
[0020] In the axial direction, the outer wall of the spacer IV is a cylindrical structure with a constant diameter. Since the hollow cavity of the spacer IV is a frustum structure, the thickness of the spacer IV will vary.
[0021] Compared with the prior art, this application has the following advantages:
[0022] 1. In the granular heated cigarette of this application, a baffle 1 is provided at the distal lip end of the separator, and a vent hole 2 is provided on the baffle 1. The baffle 1 can prevent tobacco particles from accumulating in the hollow cavity of the separator, which would cause problems such as blockage of the airflow channel, aerosol trapping, insufficient heating, and affecting the smoking effect.
[0023] 2. The axial length of the isolation component IV can be adjusted: ① The axial length of the isolation component IV is less than the axial length of the hollow section II, which can reduce the cost of the isolation component; ② The axial length of the isolation component IV is equal to the axial length of the hollow section II, which is beneficial to the positioning of smoke particles and filter materials in the external flue, and also enables it to have a normal cooling effect on high-temperature flue gas. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the cylindrical spacer IV structure according to the first embodiment of this application.
[0025] Figure 2 This is a schematic diagram of the granular heated cigarette structure according to the first embodiment of this application.
[0026] Figure 3 This is a schematic diagram of the granular heated cigarette structure according to the second embodiment of this application.
[0027] List of reference numerals in the attached diagram:
[0028] I. Tobacco pellet segment, II. Hollow segment, III. Filter segment, IV. Separator, 1. Baffle, 2. Ventilation hole, 3. Chamfer, 4. Ventilation groove, 5. Tube wall. Detailed Implementation
[0029] The present application will now be described in further detail with reference to the embodiments.
[0030] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of this application. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product manual. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.
[0031] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. In the description of this application, unless otherwise stated, “a plurality” means two or more. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated feature, integer, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.
[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.
[0038] Figure 1 This is a schematic diagram of the cylindrical spacer IV structure according to the first embodiment of this application.
[0039] The outer wall of the separator IV is cylindrical. The separator IV has a hollow cavity inside. One end of the separator IV is provided with a baffle 1 with ventilation holes 2, and ventilation grooves 4 are evenly distributed around its periphery. The ventilation grooves 4 extend along the axial direction of the cylinder. In other words, the ventilation grooves 4 extend axially along the pipe wall 5 of the hollow cylindrical separator IV to provide an air flow channel. One end of the separator IV is closed by the baffle 1, and the other end is open. The end face of the baffle 1 and the outer wall of the separator IV form a 45-degree or arc chamfer 3 to facilitate the installation of the separator IV of the present application into the tobacco pipe. In other words, the far lip end of the separator IV has a chamfer. The inner cavity of the separator IV is a non-protruding frustum of a cone, that is, the inner cavity diameter at the end with the baffle 1 is d1, and the end diameter of the other open end is d2, and d1 < d2. Thus, when the separator IV of the present application is applied to an automatic loading production line, its center of gravity is significantly biased towards the end with the baffle 1 and the ventilation holes 2. This facilitates the setting of a device that automatically turns around by its own weight on the automatic loading production line, so that the separator IV can automatically turn around by its own weight during loading and be smoothly loaded into the tobacco pipe in a predetermined direction, facilitating production. At the same time, the design of d1 < d2 also makes it more convenient for the separator IV to be demolded during die casting.
[0040] Figure 2 Schematic diagram of the structure of the particulate heated cigarette of the first embodiment of the present application. The particulate heated cigarette includes: a tobacco particle section I, a hollow section II, and a filter section III arranged from the far lip end to the near lip end.
[0041] The separator IV is arranged inside the hollow section II. Figure 1 The outer periphery of the particulate heated cigarette is an integral tobacco pipe. Therefore, the tobacco particle section I includes: the first section of the tobacco pipe and the tobacco particles inside it; the hollow section II includes: the second section of the tobacco pipe and the separator IV inside it; the filter section III includes: the third section of the tobacco pipe and the filter element inside it. The size of the ventilation holes 2 is smaller than the size of the tobacco particles to prevent the tobacco particles from falling into the ventilation holes 2. The axial length of the separator IV is less than the axial length of the hollow section II.
[0042] The tobacco pipe is a hollow cylindrical structure. The far lip end of the tobacco particle section is blocked by a blocking member to prevent the particles from leaking out. The blocking member can be a sealing film bonded to the tobacco pipe, etc. The material of the sealing film can be paper or metal foil, etc. The filter element can be an acetate fiber filter rod, etc.
[0043] Figure 3 Schematic diagram of the structure of the particulate heated cigarette of the second embodiment of the present application. The axial length of the separator IV is equal to the axial length of the hollow section II, that is, the smoke particles, the separator IV, and the filter element are in contact in sequence.
[0044] Figure 2 and Figure 3The illustration shows the application of two lengths of separator IV in particulate cigarettes. Figure 2 This solution can reduce the cost of the isolation components. Figure 3 The solution is beneficial for the positioning of smoke particles and filter elements in the external flue, and also enables it to have a normal cooling effect on high-temperature flue gas.
Claims
1. A granular heated cigarette, characterized in that, The granular heated cigarette includes: a tobacco granule segment (I) and a hollow segment (II) arranged from the distal lip end to the proximal lip end; The hollow section (II) is provided with an isolation element (IV). The outer wall of the isolation element (IV) is a columnar structure with a hollow cavity inside. The distal lip of the isolation element (IV) is provided with a baffle (1) and a vent hole (2) is provided on the baffle (1) to allow airflow to pass through.
2. The granular heated cigarette according to claim 1, characterized in that, The outer wall of the isolation element (IV) has a plurality of venting grooves (4) extending along the axial direction to provide airflow channels.
3. The granular heated cigarette according to claim 1, characterized in that, The lip end of the isolation element (IV) is an open end.
4. The granular heated cigarette according to claim 1, characterized in that, The number of ventilation holes (2) is multiple.
5. The granular heated cigarette according to claim 1, characterized in that, The axial length of the separator (IV) is less than or equal to the axial length of the hollow section (II); The distal lip of the separator (IV) abuts against the tobacco particle segment (I).
6. The granular heated cigarette according to claim 1, characterized in that, The distal lip of the spacer (IV) has a chamfer.
7. The granular heated cigarette according to claim 1, characterized in that, The hollow cavity of the spacer (IV) has a frustum structure, and the diameter of the distal lip of the hollow cavity is larger than the diameter of the proximal lip of the hollow cavity.
8. The granular heated cigarette according to claim 1, characterized in that, The granular heated cigarette also includes a filter section (III) located near the lip end of the granular heated cigarette; The tobacco particle segment (I) includes: a first section of the cigarette tube and tobacco particles therein; the hollow segment (II) includes: a second section of the cigarette tube and a separator (IV) therein; the filter segment (III) includes: a third section of the cigarette tube and a filter therein; The size of the vent (2) is smaller than the size of the tobacco particles.