Granular aerosol generating product
By designing the combined separator IV, the problem of tobacco particle agglomeration in granular aerosol products is solved, ensuring unobstructed airflow and sufficient heating, thereby increasing the amount of smoke and enhancing the taste experience.
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
- 2026-04-24
AI Technical Summary
In existing particulate aerosol products, tobacco particles tend to agglomerate in porous fasteners, leading to problems such as blocked airflow channels, insufficient heating, and reduced smoke volume.
The composite isolation element IV is adopted, including an outer isolation element a and an inner isolation element b. The upper end of the outer isolation element a has a vent hole, and the inner isolation element b is nested in the outer isolation element a. The two form a functional particle receiving cavity. The particle sliding is prevented by designing a frustum structure and friction. The lower end of the outer isolation element a has a vent hole, and the upper end of the inner isolation element b has a vent slit to ensure smooth airflow.
It effectively prevents tobacco particles from accumulating, keeps the airflow channels clear, ensures sufficient heating, increases the amount of smoke, and can also embed flavoring or cooling particles to enhance the user experience.
Smart Images
Figure CN224155114U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heated cigarette technology, specifically relating to a particulate aerosol generating product. Background Technology
[0002] Particle-type cigarettes are a new type of heated-not-burn (HNB) cigarette 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, which is why they are so 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 particulate aerosol generation products 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 particles agglomerating and clumping at the recessed areas. This issue leads to three adverse effects: first, agglomerated particles block airflow channels, increasing the suction resistance of the particulate aerosol generation product; second, the agglomerated particles are farther from the heat source, resulting in insufficient heating and affecting smoke generation; and third, 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 particulate aerosol generating article, which includes: a tobacco particle segment I and a hollow segment II arranged sequentially from upstream to downstream;
[0007] The hollow section II is provided with a combined isolation component IV, which includes an outer isolation component a and an inner isolation component b;
[0008] The outer spacer a and the inner spacer b are coaxially arranged and both are hollow tubular structures. The inner spacer b is located in the hollow cavity of the outer spacer a.
[0009] The upstream end of the outer isolation component a is provided with an outer end cap 1, and the outer end cap 1 is provided with a vent hole 2 to allow airflow to pass through;
[0010] The upstream end of the inner isolation component b is provided with an inner end cap, and the inner end cap is provided with a ventilation slit 7 to allow airflow to pass through.
[0011] The hollow tubular structure described above does not require that the cross-sections at both ends of the outer wall be completely identical; the outer wall can be cylindrical, frustum-shaped, square prism-shaped, or truncated square. Similarly, the inner cavity does not require that the cross-sections at both ends be completely identical; the inner cavity can also be cylindrical, frustum-shaped, square prism-shaped, or truncated square. The axial thickness of the hollow tubular structure described above can be consistent or inconsistent. The shapes of the outer spacer a and the inner spacer b can be consistent or inconsistent.
[0012] Preferably, the outer wall of the combined isolation element IV has a plurality of grooves 4 extending along the axial direction to provide airflow channels.
[0013] Preferably, the downstream ends of the outer isolator a and the inner isolator b are open ends.
[0014] Preferably, within the hollow cavity of the outer spacer a, a functional particle receiving cavity is formed between the outer end cap 1 and the inner end cap of the inner spacer b. The functional particle receiving cavity contains functional particles such as flavoring particles or cooling particles.
[0015] Preferably, the axial length of the combined isolation element IV is less than or equal to the axial length of the hollow section II.
[0016] The axial length of the combined isolation element IV is the same as the axial length of the outer isolation element a.
[0017] Preferably, the axial length of the combined separator IV is less than the axial length of the hollow section II, and the upstream end of the combined separator IV abuts against the tobacco particle section I.
[0018] Preferably, the upstream end of the outer spacer a has a chamfer. This chamfer is provided on the outer wall of the outer spacer a.
[0019] Preferably, the hollow cavity of the outer spacer a is a frustum-shaped structure, and the inner diameter of the upstream end of the hollow cavity is smaller than the inner diameter of the downstream end of the hollow cavity;
[0020] The outer wall of the inner spacer b is a frustum structure, and the inner diameter of the upstream end of the frustum is smaller than the inner diameter of the downstream end of the frustum.
[0021] The relationship between the cone angle of the frustum structure of the hollow cavity of the outer spacer a and the cone angle of the frustum structure of the outer wall of the inner spacer b is configured as follows:
[0022] When the inner spacer b is installed in a specific position within the hollow cavity of the outer spacer a, the inner spacer b will not slide axially within the outer spacer a.
[0023] Preferably, the inner end cap of the inner spacer b is provided with a channel 8.
[0024] Preferably, the particulate aerosol generating product further includes: a filter section III located downstream of the hollow section II;
[0025] 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 combined separator IV therein; the filter segment III includes: a third section of the cigarette tube and a filter therein.
[0026] The downstream ends of the outer isolator a and the inner isolator b may or may not have end caps.
[0027] When an end cap is provided at the downstream end of the outer isolation member a or the inner isolation member b, the cavity inside the outer isolation member a or the inner isolation member b can be filled with flavoring particles or cooling particles to further enhance the flavor or cool the temperature.
[0028] The outer spacer a and the inner spacer b can be made of high-temperature safe materials such as polypropylene (PP), polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), polycarbonate (PC), polylactic acid (PLA), polyhydroxyalkanoates (PHA), and polyethylene terephthalate (PET), and can be manufactured using processes such as injection molding. Spacer IV can also be made of ceramic or paper materials.
[0029] In this application, when the particulate aerosol product is heated and drawn in, the flow direction of the flue gas inside is denoted as from upstream to downstream.
[0030] Compared with the prior art, this application has the following advantages:
[0031] 1. In the combined separator IV of the particulate aerosol generating product of this application, an outer end cap 1 is provided at the upstream end of the outer separator a, and a vent hole 2 is provided on the outer end cap 1. The outer end cap 1 can prevent tobacco particles from the tobacco particle segment from accumulating in the hollow cavity of the combined separator, blocking the airflow channel, and causing problems such as aerosol trapping, insufficient heating, and affecting the smoke generation effect.
[0032] 2. The axial length of the combined isolation component IV can be adjusted. For example: 1. The axial length of the combined isolation component IV is less than the axial length of the hollow section II. This can reduce the cost of the isolation component. 2. The axial length of the combined isolation component IV is equal to the axial length of the hollow section II. This is beneficial for the positioning of smoke particles and filter elements in the external flue, and also ensures that it has a normal cooling effect on high-temperature flue gas.
[0033] 3. The combined isolation component IV of this application includes an outer isolation component a and an inner isolation component b. The inner isolation component b is nested within the outer isolation component a, and a functional particle receiving cavity is formed between the outer end cap 1 and the inner end cap of the inner isolation component b. The functional particle receiving cavity contains functional particles such as flavoring particles or cooling particles, which can further enhance the flavor or cool the temperature. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of the cylindrical combined spacer IV structure according to the first embodiment of this application.
[0035] Figure 2 This is a schematic diagram of the structure of a particulate aerosol generating article according to the first embodiment of this application.
[0036] Figure 3 This is a schematic diagram of the structure of a particulate aerosol generating article according to the second embodiment of this application.
[0037] List of reference numerals in the attached diagram:
[0038] I. Tobacco pellet segment, II. Hollow segment, III. Filter segment, IV. Combined isolation component, a. Outer isolation component, b. Inner isolation component, 1. End cap, 2. Vent hole, 3. Chamfer, 4. Groove, 5. Outer tube wall, 6. Inner tube wall, 7. Vent slit, 8. Channel, 9. Tobacco tube, 10. Functional pellet, 11. Sealing component. Detailed Implementation
[0039] The present application will now be described in further detail with reference to the embodiments.
[0040] 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. Where the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be obtained by purchase.
[0041] 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.
[0042] 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.
[0043] 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.
[0044] 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.
[0045] 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.
[0046] 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.
[0047] 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.
[0048] Figure 1 This is a schematic diagram of a cylindrical combined spacer IV structure according to the first embodiment of this application. The combined spacer is composed of an outer spacer a and an inner spacer b nested together. The outer spacer a and the inner spacer b are coaxially arranged and both are hollow tubular structures, with the inner spacer b located within the hollow cavity of the outer spacer a.
[0049] The outer wall 5 of the outer isolator a is cylindrical, and the inner wall is a frustum conical. The inner diameter d1 of the upstream end of the inner wall of the outer isolator a is smaller than the inner diameter d2 of the downstream end.
[0050] The inner and outer walls of the inner spacer b are both frustum conical. The entire wall of the inner spacer b has a uniform thickness. One end of the inner spacer b is a relatively closed inner end face with a vent slit 7. The vent slit 7 consists of two circumferentially distributed annular or other shaped slits. The outer diameter of the upstream end of the inner spacer b is d3, and the outer diameter of the downstream end is d4, with d3... <d4。
[0051] The relationship between the cone angle of the frustum-shaped structure of the hollow cavity of the outer spacer a and the cone angle of the frustum-shaped structure of the outer wall of the inner spacer b is configured such that when the inner spacer b is installed into the hollow cavity of the outer spacer a, the inner spacer b will not slide axially within the outer spacer a. Specifically, the tapers of both the outer spacer a and the inner spacer b are small, which satisfies the process requirements for demolding and ejection of the two spacers during die casting, and also ensures that when the inner spacer b is installed, self-locking is achieved through the small taper change between the inner conical wall of the outer spacer a and the outer conical surface of the inner spacer b, relying on the friction between them. Specifically, the cone angle of the frustum-shaped structure of the hollow cavity of the outer spacer a and the cone angle of the frustum-shaped structure of the outer wall of the inner spacer b can be the same. The angles of the two cone angles can be 1 to 5 degrees. The specific cone angles can be determined based on the coefficient of friction or the angle of friction between the outer spacer a and the inner spacer b. After self-locking is achieved, the friction between the outer isolator a and the inner isolator b can prevent the inner isolator b from sliding axially, without the need for additional fastening.
[0052] A channel 8 is also provided in the center of the inner end face of the inner spacer b. The channel 8 is a small round hole, which serves to allow ventilation when the inner spacer b is in normal use. When the entire modular spacer of this application is assembled, if any abnormality is found (such as abnormal fragrance particles inside), a long and thin handle-shaped tool with a matching diameter and a threaded front end can be inserted through it to assist in removing the inner spacer b from the outer spacer a. Therefore, the channel 8 also serves as a reserved hole for remedial measures. The size of the channel 8 is smaller than the size of the functional particles 10 in the functional particle receiving cavity to prevent the functional particles 10 from leaking out through the channel 8.
[0053] The outer wall of the combined isolation element IV has several grooves 4 extending axially to provide airflow channels. The downstream ends of the outer isolation element a and the inner isolation element b are open ends. Within the hollow cavity of the outer isolation element a, a functional particle receiving cavity is formed between the outer end cap 1 and the inner end cap of the inner isolation element b. The functional particle receiving cavity contains flavoring particles or cooling particles.
[0054] Figure 2 This is a schematic diagram of the structure of a particulate aerosol generating article according to the first embodiment of this application. The particulate aerosol generating article further includes: a filter section III located downstream of the hollow section II;
[0055] The tobacco particle segment I includes a first section of the tobacco tube and tobacco particles therein; the hollow segment II includes a second section of the tobacco tube and a combined separator IV therein; the filter segment III includes a third section of the tobacco tube and a filter element therein. The first, second, and third sections of the tobacco tube are three parts of a single tobacco tube 9. The axial length of the combined separator IV is less than the axial length of the hollow segment II, and the upstream end of the combined separator IV abuts against the tobacco particle segment I. The tobacco tube 9 has a hollow cylindrical structure. The distal lip of the tobacco particle segment is sealed by a sealing element to prevent particle leakage. The sealing element 11 can be a sealing film or the like bonded to the tobacco tube. The sealing film material can be paper or metal foil, etc. The filter element can be a cellulose acetate filter rod, etc.
[0056] Figure 3 This is a schematic diagram of the particulate aerosol generating article according to the second embodiment of this application. The axial length of the combined separator IV is equal to the axial length of the hollow section II.
[0057] 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 particulate aerosol generating product, characterized in that, The particulate aerosol product comprises, from upstream to downstream, a tobacco particle segment (I) and a hollow segment (II); The hollow section (II) is provided with a combined isolation element (IV), which includes an outer isolation element (a) and an inner isolation element (b); The outer spacer (a) and the inner spacer (b) are coaxially arranged and are both hollow tubular structures. The inner spacer (b) is located in the hollow cavity of the outer spacer (a). The upstream end of the outer isolation member (a) is provided with an outer end cap (1), and the outer end cap (1) is provided with a vent hole (2) for airflow to pass through; The upstream end of the inner isolation member (b) is provided with an inner end cap, and the inner end cap is provided with a ventilation slit (7) to allow airflow to pass through.
2. The particulate aerosol generating product according to claim 1, characterized in that, The outer wall of the combined isolation element (IV) has a plurality of grooves (4) extending along the axial direction to provide airflow channels.
3. The particulate aerosol generating product according to claim 1, characterized in that, The downstream ends of the outer isolator (a) and the inner isolator (b) are open ends.
4. The particulate aerosol generating product according to claim 1, characterized in that, Within the hollow cavity of the outer isolator (a): a functional particle receiving cavity is formed between the outer end cap (1) and the inner end cap of the inner isolator (b).
5. The particulate aerosol generating product according to claim 1, characterized in that, The axial length of the combined isolation element (IV) is less than or equal to the axial length of the hollow section (II); The upstream end of the combined separator (IV) abuts against the tobacco particle segment (I).
6. The particulate aerosol generating product according to claim 1, characterized in that, The upstream end of the outer spacer (a) has a chamfer.
7. The particulate aerosol generating product according to claim 1, characterized in that, The hollow cavity of the outer isolator (a) is a frustum structure, and the inner diameter of the upstream end of the hollow cavity is smaller than the inner diameter of the downstream end of the hollow cavity; The outer wall of the inner spacer (b) is a frustum structure, and the outer diameter of the upstream end of the frustum is smaller than the inner diameter of the downstream end of the frustum; The relationship between the cone angle of the frustum structure of the hollow cavity of the outer spacer (a) and the cone angle of the frustum structure of the outer wall of the inner spacer (b) is configured as follows: When the inner spacer (b) is inserted into the hollow cavity of the outer spacer (a), the inner spacer (b) will not slide axially within the outer spacer (a).
8. The particulate aerosol generating product according to claim 1, characterized in that, The inner end cap of the inner spacer (b) is provided with a channel (8).
9. The particulate aerosol generating product according to claim 1, characterized in that, The particulate aerosol generating product further includes: a filter section (III) located downstream of the hollow section (II); 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 combined separator (IV) therein; the filter segment (III) includes: a third section of the cigarette tube and a filter therein.