Aerosol-generating body and cartridge

Abstract

An aerosol-generating body and a cartridge. The aerosol-generating body (3) comprises a plurality of filament bodies (302) in contact with each other and extending in a preset direction; each filament body (302) is loaded with an aerosol-generating substrate (303); a filamentary structure (310) is a structure that is formed by assembling the plurality of filament bodies (302) and is provided with an axial heating channel (320); the heating channel (320) is integrally formed in the center of the filamentary structure (310) to allow insertion of a heating element; and the heating channel (320) is a structure that is integrally formed during formation of the filamentary structure (310).

Description

Smoke generator and e-cigarette cartridge

[0001] This application claims priority to Chinese Patent Application No. 202510107100.2, filed on January 22, 2025, entitled "Smoke Generating Device, Smoke Cartridge, Smoke Generating Body and Preparation Method", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of tobacco product technology, specifically to a smoke generator and a tobacco cartridge. Background Technology

[0003] In heated tobacco products (HNB), center heating is a common technical approach, which achieves heating by directly inserting needle-shaped or sheet-shaped heating elements into the smoke-generating body. Technical issues

[0004] However, the smoke-generating body is usually a porous medium with a certain density (such as cotton core, granules, or slurry). When a metal heating element with high hardness is forcibly inserted, it will encounter huge and uneven resistance from the smoke-generating body material. This not only makes the insertion process difficult, but also easily causes the slender heating element to bend, deform, or even be damaged, seriously affecting the service life of the heating element, the alignment accuracy of heating, and the uniformity of heating. Technical solutions

[0005] This application provides a smoke generator, comprising multiple threads that are in contact with each other and extend along a predetermined direction, the threads being loaded with a smoke-generating matrix; a textile body is a structure with an axial heating channel formed by the multiple threads; the heating channel is integrally formed at the center of the textile body for the insertion of a heating element; the heating channel is an integrally formed structure during the forming process of the textile body.

[0006] This application provides a smoke cartridge, including the aforementioned smoke-generating body. Beneficial effects

[0007] Multiple threads that are in contact with each other and extend along a preset direction are combined to form a textile body with an axial heating channel. During the forming process of the textile body, a physical channel is formed for the heating element to pass through, which avoids the mechanical resistance and element damage caused by the heating element forcibly penetrating the smoke generator. This effectively prevents the heating element and smoke generator from deforming and maintains the shape of the heating element and the textile body.

[0008] The textile body formed by multiple yarns has a certain holding force, which can effectively ensure the shape of the textile body and provide structural support and shape retention for the entire textile body. This ensures the geometric stability of the heating channel during use, thereby guaranteeing the accurate alignment of the heating element and the stability of the heat transfer path. Attached Figure Description

[0009] Figure 1 is a schematic diagram of a smoke cartridge structure containing a smoke generator with a parallel wire bundle structure;

[0010] Figure 2 is a cross-sectional view of the smoke-generating body along section AA in the embodiment of Figure 1;

[0011] Figure 3 is a schematic diagram of the smoke cartridge structure of the present application, which includes an integral twisted wire harness structure for generating smoke.

[0012] Figure 4 is a schematic diagram of the structure viewed obliquely from the BB end face in Figure 3;

[0013] Figure 5 is a schematic diagram of a combined cross-sectional structure of the slender wire of the smoke generator in this application;

[0014] Figure 6 is a schematic diagram of a four-section structure of a cigarette cartridge according to this application;

[0015] Figure 7 is a schematic diagram of the knotted structure of monofilament and monoyarn;

[0016] Figure 8 is a schematic diagram of the structure of a single filament and a multi-strand knotted rope;

[0017] Figure 9 is a schematic diagram of the knot structure of monofilament core composite strand and monofilament core composite strand;

[0018] Figure 10 is a schematic diagram of a double-filament structure of a receptor strand;

[0019] Figure 11 is a schematic diagram of a multi-strand and multi-yarn knotted rope structure;

[0020] Figure 12 is a schematic diagram of the knotting structure of monofilament core composite strand and monofilament core composite strand;

[0021] Figure 13 is a schematic diagram of the knotted structure of multi-core composite strands and multi-core composite strands;

[0022] Figure 14 is a structural schematic diagram of a ternary composite e-cigarette cartridge according to this application;

[0023] Figure 15 is a schematic diagram of the structure of a rope-shaped submerged paper yarn smoke generator according to this application;

[0024] Figure 16 is a schematic diagram of a structure with multiple strands on the outside;

[0025] Figure 17 is a schematic diagram of a rope-shaped, submerged paper yarn smoke generator;

[0026] Figure 18 is a schematic diagram of the structure of a smoke generator with a central heating channel shown in an embodiment of this application;

[0027] Figure 19 is a sectional view shown in Figure 18 (CC).

[0028] Figure 20 is a schematic diagram of the structure of one embodiment of the composite strand shown in this application;

[0029] Figure 21 is a schematic diagram of another embodiment of the composite strand shown in this application;

[0030] Figure 22 is a schematic diagram showing the support member disposed in the heating channel according to an embodiment of this application;

[0031] Figure 23 is a schematic diagram of a textile with a sensor according to an embodiment of this application;

[0032] Figure 24 is a schematic diagram showing the sensor portion embedded in the textile body according to an embodiment of this application;

[0033] Figure 25 is a schematic diagram of a first embodiment of this application showing that the sensor is disposed at the outer end of the textile body;

[0034] Figure 26 is a schematic diagram of a second embodiment of this application, showing the sensor disposed at the outer end of the textile body;

[0035] Figure 27 is a schematic diagram of the winding sensor on the outer end of the textile body according to this application;

[0036] Figure 28 is a schematic diagram of the spaced winding sensor on the outer end of the textile body according to this application;

[0037] Figure 29 is a schematic diagram of a smoking device according to an embodiment of this application.

[0038] Reference numerals: 1. Filter tip; 2. Cooling component; 3. Smoke generator; 301. Shaping layer; 301a. Aluminum foil; 301b. Water-cured paper; 302. Wire; 302a. Fiber yarn; 302b. Metal wire; 302c. Monofilament multi-yarn composite yarn; 302d. Multifilament multi-yarn composite yarn; 302e. Multi-yarn yarn; 302f. Multi-filament metal yarn; 302h. Receptor yarn; 302g. Substrate yarn; 303. Aerosol matrix; 304. Wire gap; 4. Cigarette tube; 5. Bottom plug; 6. Cigarette paper; 10. Core cord; 101. Inner core wire; 102. Inner plain wire; 20. Surface yarn; 201. Outer core wire; 202. Outer plain wire; 310. Textile body; 320. Heating channel; 330. Yarn; 311. Reinforcing structure; 312. Support component; 340. Sensor; 400. Heating element. Embodiments of the present invention

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0040] In the embodiments of this application, the aerosol matrix (i.e., the smoke-generating medium) is defined as a general term for a mixture that can release aerosols (i.e., smoke), the main components of which include nicotine substances, fogging agents, and tobacco flavorings.

[0041] The concept of nicotine substances here is used in a broad sense, including free nicotine alkaloids, other nicotine compounds, and nicotine derivatives. The molecular formula of nicotine is C1. 10 H 14 N2, its chemical structure comprises a pyridine ring and a pyrrolidine ring, which are connected by a covalent bond, and the pyrrolidine ring also has a methyl substituent. The active ingredient of nicotine can be in a free or bound state, and its existence can include: nicotine and nicotine salts naturally occurring in or extracted from tobacco plants, as well as synthetic nicotine and synthetic nicotine salts.

[0042] Tobacco plants typically contain nicotine bases and nicotine salts, such as nicotine citrate, nicotine malate, and nicotine tartrate; they also contain trace amounts of other nicotine compounds, such as nornicotine, anatabine, myosmine, and anabasine.

[0043] Synthetic nicotine is mainly produced through multi-step synthesis using nicotinic acid or 3-acetylpyridine as starting materials, or through asymmetric synthesis, biological or enzymatic synthesis methods to generate nicotine in its free base form. Synthetically produced nicotine salts mainly include: nicotine benzoate, nicotine salicylate, nicotine lactate, nicotine hydrochloride, nicotine citrate, nicotine tartrate, and nicotine malate, etc.

[0044] To generate stable and dense smoke, in some applications, different polyols or mixtures thereof are added to the aerosol generating matrix as fogging agents, such as propylene glycol, vegetable glycerin, and polyethylene glycol, and may also include esters of polyhydroxy alcohols or esters of hydroxy acids. These fogging agents have significantly different volatilization temperatures; for example, glycerol and 1,3-butanediol have boiling points of 290°C and 207.5°C, respectively, at 760 mmHg. However, this invention defines the boiling point temperature range as 180-350°C.

[0045] The function of tobacco flavorings is to impart various flavors, containing natural flavorings such as vanillin, menthol, eugenol, citral, linalool, ethyl acetate, other fruit and spice extracts; and synthetic flavorings such as acetylpyrazine, diacetyl, cyclic ketones, and various esters.

[0046] When inhaling heated tobacco products, the key chemical ingested by the user is nicotine. Simultaneously, producing a large amount of vapor and offering diverse flavors provides a superior user experience. In this design, an aerosol matrix liquid mixture is uniformly deposited onto a rope-like vapor-generating substrate woven from threads, and then dried to form a filament.

[0047] Thin-sheet heated non-combustible electromagnetic cigarette cartridges are the most known technology to date, in which the main component of the smoke-generating body (aerosol matrix) is a layered stack of tobacco sheets.

[0048] Tobacco sheet is a type of reconstituted tobacco, made from tobacco as the raw material, with the addition of cellulose, flavorings, fogging agents, preservatives, and adhesives. Its production processes mainly include rolling, papermaking, and slurry processing. First, various raw materials are mixed into a slurry, which is then filtered, cast, pressed, and dried to produce tobacco sheet paper. This production method is characterized by its complex processes, expensive equipment, and the poor uniformity and low strength of the tobacco sheet paper.

[0049] In the process of forming this type of tobacco cartridge, the tobacco sheet first needs to be longitudinally cut, and then rolled and bonded into a smoking stick. This process has very high requirements for the dimensional accuracy, material uniformity, tensile strength and other material parameters of the tobacco sheet, otherwise it is easy to break.

[0050] Furthermore, during the molding process of these electromagnetic cigarette cartridges, the tobacco sheet and metal strip need to be wound together to the central area, making it more difficult to cut wider metal strips (e.g., wider than 3mm) during the cigarette stick cutting process. Additionally, this configuration of the metal strip at the cartridge's axis is a central heating method, which has the drawback of overly concentrated heat, easily leading to uneven carbonization and noticeable differences in aerosol release during different puff counts.

[0051] In addition, there is a type of granular e-cigarette cartridge. For granular cartridges, the metal sheets are inserted piece by piece, resulting in low production efficiency. Thinner metal sheets have low strength and are difficult to insert into the aerosol matrix, while thicker metal sheets are also difficult to cut. Furthermore, the irregular and disordered arrangement of the granular aerosol matrix can easily lead to instability in the airflow and inconsistent carbonization zones during heating.

[0052] To solve the above-mentioned technical problems, the present invention proposes a smoke cartridge with a smoke-generating body consisting of multiple lines that are in contact with each other and extend along a predetermined direction.

[0053] The three-section and four-section cartridges listed in the embodiments described in this application are only for illustrating the application to different aerosol forming matrices, and the embodiments are not limited to such examples.

[0054] Example 1:

[0055] Please refer to Figure 1. Figure 1 is a schematic diagram of a tobacco cartridge structure containing a smoke-generating body 3 constructed with parallel wire bundles. The cartridge is roughly arranged in a cylindrical strip configuration and includes a filter tip 1, a cooling element 2, and a smoke-generating body 3. The lengths of the filter tip 1, cooling element 2, and smoke-generating body 3 are 11 mm, 18 mm, and 16 mm, respectively. These three components are enclosed by a smoke tube 4, forming a three-section tobacco cartridge. The outer diameter of the cartridge can be 7.2 mm, and the total length is 45 mm.

[0056] The outermost layer of the smoke-generating body 3 is a shaping layer 301, which can be composed of a thin aluminum foil 301a composite paper with an average wall thickness of 0.3mm. It contains multiple parallel stacked slender wires 302, each wire 302 being straight. The material of these wires can be modified aramid, capable of withstanding temperatures up to 400℃ without significant chemical changes or the release of harmful substances. Through a spinning process, they become fiber yarns 302a, with an aerosol matrix 303 diffusely distributed on their surface and inside. The interior also contains longitudinally straight wire gaps 304, forming part of the air passage. Furthermore, these wire gaps 304 are controllable; their size is controlled by adjusting the outer diameter of adjacent slender wires 302, thereby controlling the equivalent inner diameter of the air passage.

[0057] If the air passage of the smoke generator 3 is divided into radial sections, the size of the wire gap 304 can be controlled by controlling the outer diameter of adjacent slender wires 302 in different sections, thereby controlling the equivalent inner diameter of the air passage in different sections. This satisfies the need for local adjustments to suction resistance, air intake, etc., to address the varying smoke output caused by uneven heating in the smoke generator 3. In another embodiment, the local size of the wire gap 304 is controlled by controlling the local outer diameter of adjacent slender wires 302, thereby controlling the local equivalent inner diameter of the air passage. By controlling the local inner diameter of the air passage, the width of the air passage varies axially, making the airflow velocity in a single air passage controllable. This can be combined with the heat distribution of the heating element to control the flow velocity within the air passage, achieving excellent smoke generation.

[0058] When the wire 302 is manufactured using a spinning process, its surface is not smooth. In reality, it is uneven (when multiple wires 302 are parallel, they are not completely flat and smooth channels; the internal uneven buffer space is also conducive to cooling when airflow passes through). This structural feature, combined with the aforementioned adjustable gap, constitutes a better airflow speed control method.

[0059] In some other embodiments, the shaping layer 301 may not be provided. The overall shaping of the thread 330 may be achieved by external binding or by incorporating adhesive or the thread itself.

[0060] Figure 2 is a cross-sectional view of the smoke-generating body 3 along line AA in the embodiment of Figure 1 (the smoke tube is not shown here). The shaping layer 301 can be composed of aluminum foil 301a and pine paper 301b. After shaping, its outer periphery is circular, and the smallest unit of the slender wires 302 inside is made of the same material, consisting of a single, relatively thick fiber yarn 302a. This configuration inside the smoke-generating body 3 is a single-yarn pattern. Before the bundled wrapping of the wires, the aerosol matrix 303 is deposited on the surface and inside of the fiber yarns 302a using various suitable methods, including immersion, spraying, brushing, rolling, and atomization. After shaping, a small amount of aerosol matrix 303 is scattered into the gaps 304 between the wires. In this design, the cross-section of the fiber yarn 302a is approximately circular, and its fiber material is soft and fluffy. The long, thin yarns 302 are not intertwined or tangled, and the numerous gaps 304 between the yarns make the entire smoke-generating body 3 very loose and breathable, resulting in expected low draw resistance during smoking applications. The aluminum foil 301a has a certain strength, which facilitates shaping and ensures roundness.

[0061] For ease of operation and user mouthpiece use, the outer diameter of the smoke-generating body 3 in this invention is designed to be between 4-10 mm, and the length is between 8-40 mm. To achieve a high degree of roundness, thin and uniformly sized long wires 302 are used, with an equal diameter set between 0.01-1.5 mm and a quantity set between 10-2000 strands.

[0062] In this embodiment, the cartridge does not contain a heating element. The slender wires 302 are arranged in an orderly longitudinal direction along the central axis of the cartridge. This configuration is suitable for inserting needle-shaped or sheet-shaped heating elements into the central area of ​​the wire bundle for central heating or using ring-shaped heating elements to circumferentially heat the smoke-generating body 3 section from the periphery of the smoke tube 4.

[0063] It should be noted that in some designs, fiber yarn 302a can be made of various natural fibers (plant fibers and mineral fibers) or chemical fibers (man-made fibers, synthetic fibers, and inorganic fibers) that do not contain nicotine. Suitable natural fibers include plant fibers and mineral fibers that can withstand temperatures up to 250°C.

[0064] Plant fibers include: seed fibers, bast fibers, leaf fibers, and fruit fibers. Seed fibers are single-celled fibers formed from the epidermal cells of some plant seeds, such as cotton and kapok. Bast fibers are single-celled or processed fibers obtained from the phloem of some plants, such as flax, ramie, jute, and bamboo fiber. Leaf fibers are processed fibers obtained from the leaves or leaf sheaths of some plants, such as sisal and abaca. Fruit fibers are fibers obtained from the fruits of some plants, such as coconut fiber.

[0065] Mineral fibers are fibers obtained from fibrous mineral rocks. Their main components are various oxides, such as silicon dioxide, aluminum oxide, and magnesium oxide. Their main source is various types of asbestos, such as chrysotile and crocidolite.

[0066] Suitable chemical fibers are fibers that have been chemically processed, including non-toxic and easily cut man-made fibers, synthetic fibers, and inorganic fibers.

[0067] Man-made fibers, also known as regenerated fibers, refer to textile fibers made from materials containing natural or protein fibers, such as wood, sugarcane, reeds, and soybean protein fibers, through chemical processing. These fibers are then modified to prepare the fiber yarn 302a suitable for this invention. The main suitable man-made fibers include viscose fiber, modal fiber, bamboo fiber, and acetate fiber.

[0068] Synthetic fibers are first synthesized from substances that do not inherently contain cellulose or protein, such as petroleum, coal, natural gas, limestone, or agricultural byproducts. These are then processed into fibers using chemical synthesis and mechanical processing. Finally, they are modified to be heat-resistant by adding flame-retardant substances or altering their composition. For example, polyester fibers, polyamide fibers, nylon fibers, aromatic polyamide fibers, polytetrafluoroethylene fibers, and polyimide fibers can be modified to withstand temperatures of 250°C or even 400°C, making them suitable for use as aerosol carriers in this invention. Simultaneously, at these high temperatures, they do not undergo significant chemical reactions, release harmful substances, produce unpleasant odors, or generate large amounts of dust.

[0069] Inorganic fibers are made from natural inorganic materials or carbon-containing polymer fibers through artificial spinning or direct carbonization, including glass fibers, metal fibers and carbon fibers.

[0070] Paper includes plant fiber paper (non-tobacco plant and tobacco plant) and mineral fiber paper (ceramic paper, glassine paper, graphite paper).

[0071] Example 2

[0072] In Example 2, a four-element composite structure e-cigarette cartridge was designed. Please refer to Figure 3. Figure 3 is a schematic diagram of the e-cigarette cartridge structure of this application, which includes an integrally twisted wire harness structure for the smoke-generating body 3. As shown in Figure 3, the key difference from Example 1 is that the slender wire 302 is integrally twisted and contains a magnetic metal wire 302b, suitable for electromagnetic induction heating smoking applications. The lengths of the filter tip 1, cooling component 2, smoke-generating body 3, and bottom plug 5 can be 11mm, 18mm, 12mm, and 4mm, respectively. The four components are wrapped by the smoke tube 4, forming a four-segment electromagnetic e-cigarette cartridge. The outer diameter of the e-cigarette cartridge is 7.2mm, and the total length is 45mm.

[0073] The shaping layer 301 is a thin tissue paper with a thickness of 0.025mm; it wraps around multiple slender, twisted wires 302, and a solid aerosol matrix 303 is distributed in a portion of the slender wires 302 and in the internal gaps of the smoke-generating body 3. The bottom plug 5 can be made of porous cellulose acetate, and its functions include preventing tobacco dust and tar leakage, slowing down aerosol condensation, and improving the aesthetics of the cartridge.

[0074] Please refer to Figure 4, which is a schematic diagram of the structure viewed obliquely from the BB end face in Figure 3. As shown in Figure 4, only a portion of the shaping layer 301 is shown. The slender wire 302 is composed of two types of units: fiber yarn 302a and metal wire 302b, i.e., single yarn and single filament mode; the fiber yarn 302a is a modified aramid (aramid 1313 with added flame retardant material) flat yarn, and the metal wire 302b is a 0.2mm diameter stainless steel SUS 420 round wire, which is a martensitic stainless steel with magnetism. In this overall twisted state, on the one hand, the slender wire 302 is not easy to fall off during processing, and on the other hand, the gap 304 between the wires is no longer straight, but spiral, extending the length of the airflow path (specifically, it can be similar to the structure in Embodiment 1. The spiral twist and gap adjustment can correspond to the torque control (which may be slightly different from Embodiment 1)), which can enhance the effect of heat convection heat transfer and help reduce the aerosol temperature.

[0075] The metal wire 302b is magnetic. When the cartridge is used in conjunction with the electromagnetic smoking device, it acts as a sensor 340, coupling with the high-frequency alternating electromagnetic field generated in the device. This rapidly increases its temperature through eddy current heating, which then heats the adjacent aerosol matrix 303 (not shown in Figure 4). Therefore, the cartridge in this embodiment is a magnetic cartridge, with its heating element (sensor) 302b discretely distributed within the smoke-generating body 3. This design offers advantages such as easy cutting during processing and uniform heating and carbonization during operation.

[0076] Some applications derived from this embodiment include:

[0077] Fiber yarn 302a needs to withstand high temperatures of 300℃ to 400℃. Suitable base materials include: polytetrafluoroethylene (PTFE) fibers and certain aromatic polyamide fibers, polyimide fibers, etc., whose safe operating temperature is between 250-500℃; graphite fibers can withstand high temperatures of 1500-3000℃; glass fibers have excellent heat resistance, with a decomposition temperature exceeding 500℃. Para-aramid (PPTA), such as DuPont's Kevlar or Teijin's TWARON, has a limiting oxygen index of around 30 and a decomposition temperature as high as 560℃; meta-aramid (MPIA), such as DuPont's Nomex, has a thermal decomposition temperature of 430℃; and some ceramic fibers, such as Nextel alumina ceramic fibers, can withstand temperatures up to 1200℃.

[0078] Magnetic metal wire 302b is a physical unit, and its material composition includes one of the following: elemental metal, single alloy, and composite metal. Examples of elemental metal wire 302b include iron (Fe) wire, nickel (Ni) wire, and cobalt (Co) wire; examples of single alloy wire include various magnetic stainless steel wires (such as ferritic stainless steel, martensitic stainless steel, and some cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloy, cobalt-based amorphous alloy, iron-based nanocrystalline alloy, iron-silicon-aluminum alloy, Invar alloy, constant expansion alloy), and Kovar alloy wire, etc.; composite metal wire 302b contains two or more metal materials, including at least one magnetic material. Composite means that they are combined together by means of rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0079] In some applications, the basic constituent unit configuration of the slender wire 302 can be configured in various easily manufactured combinations. For example, as shown in Figure 5, Figure 5 is a schematic diagram of a combined cross-sectional structure of the slender wire 302 of the smoke-generating body 3 of this application. The smoke-generating body 3 includes fiber yarn 302a, metal wire 302b, and monofilament multi-yarn composite strand 302c (including a metal wire 302b and surrounding fiber yarn 302a, which are wound together to form a composite strand 302c, as a constituent unit of the smoke cartridge). It also has a surface with uneven space that is conducive to airflow transmission and cooling, and wraps the metal wire 302b of the sensor 340, thereby increasing the strength. On the other hand, it can prevent the metal wire 302b from causing a large thermal impact on the shaping layer 301 (usually containing paper) and the external smoke tube 4 if it wraps around the outer periphery of the aerosol matrix 303 section or even comes into contact with the shaping layer 301, leading to the generation of paper paste smell and glue smell, multi-filament multi-yarn composite strand 302d (including multiple metal wires 302b and surrounding fiber yarns 302a), multi-yarn strand 302e (including multiple intertwined fiber yarns 302a forming fiber strands), and multi-filament metal strand 302f (including multiple metal wires 302b wrapped together to form metal strands). The premise of reasonable configuration is to obtain an optimized smoke generator 3, which has a high porosity (the ratio of the open area in the cross section to the overall cross section area), good roundness, as symmetrical and uniform as possible structure, and contains the necessary metal wires 302b.

[0080] The different effects produced by different winding methods of 302b fiber filaments and metal wires:

[0081] Some configurations are designed to improve manufacturability. On the one hand, they increase longitudinal tensile strength because certain materials, such as paper yarn, have low strength, while some ultrafine fibers, such as those with an equivalent diameter of less than 0.03 mm, have low strength. Therefore, this application employs a blending method to reduce breakage during spinning, molding, knotting, or bundling. On the other hand, it ensures reduced difficulty in transverse cutting of ropes or bundles, because excessively thick knotting or bundling units and overly concentrated distribution of metal wires 302b significantly increase transverse cutting forces, increasing the difficulty in cutting small segments of the smoke-generating body 3 and accelerating tool wear. Therefore, in this application, the constituent units of the smoke-generating body 3 are configured with the smallest possible equivalent diameter, the narrowest possible equivalent diameter distribution range, and the finest, discretely distributed metal wires 302b to achieve this objective.

[0082] Some configurations are designed to improve the stability of the smoke-generating body 3 structure, employing various sizes and blending methods. This aims to ensure uniform physical arrangement within the smoke-generating body 3, enhance the roundness of the outer perimeter, reduce the difficulty of subsequent cartridge splicing, and improve the aesthetics of the cartridge. Especially during rope winding or bundle shaping, various units with appropriately varying diameters are required to ensure the rope or bundle is full and the internal space accommodates a predetermined number of fiber filaments and metal wires 302b, ensuring structural stability during processing and guaranteeing consistency in shape and spacing.

[0083] Some configurations are designed to create a stable and uniform airflow. Through various blending methods, a loose structure is obtained as much as possible, and gaps between units are created as evenly as possible. This design, along with the loose internal structure of the fiber filaments and metal wires 302b themselves, gives the smoke generator 3 a small suction resistance. At the same time, when heated, the physical deformation tendencies of the internal units of the smoke generator 3 are coordinated, thereby keeping the airflow stable and ultimately providing users with a high-quality user experience.

[0084] Some configurations are designed to achieve more uniform heating and final carbonization. In particular, the metal wires 302b that function as heating elements are refined and evenly distributed, which can make the heat distribution of the aerosol matrix 303 uniform, the smoke output speed fast, the smoke volume full, and the carbonization uniformly achieved, improving the utilization rate of effective components, and reducing the phenomenon of excessive carbonization caused by local overheating, which may result in charring or even the release of harmful substances.

[0085] In some configurations, in order to reduce the thermal impact on the shaping layer 301 of the smoke-generating body and the outer paper tube of the cartridge, the heating element metal wire 302b is first wrapped with other fiber filaments and then used as a bundle or rope unit. This can reduce its thermal impact on the shaping layer 301 and the outer paper tube of the cartridge.

[0086] Example 3

[0087] Please refer to Figure 6, which is a schematic diagram of a four-segment tobacco cartridge according to this application. The cartridge internally includes a filter tip 1, a cooling component 2, a smoke-generating body 3, and a bottom plug 5. The lengths of the filter tip 1, cooling component 2, smoke-generating body 3, and bottom plug 5 are 12mm, 13mm, 14mm, and 5mm, respectively. This tobacco cartridge adopts a quaternary composite method, where four units, each with a cylindrical outer perimeter, are arranged coaxially and integrated together using cigarette paper 6. The cartridge is prepared by twisting, bonding, and slitting. The cigarette paper 6, after parallel winding and bonding, forms an outer tube 4 with a diameter of 7.2mm and a thickness of 0.1mm.

[0088] The outer diameter of the smoke-generating body 3 is 7mm. Its outer wrapping layer is a shaping layer 301, which is made of plant fiber-based tissue paper with a thickness of 0.03mm. It is used to fix the internal structure to prevent loosening during processing and to ensure that the sides of the magnetic smoke-generating body 3 have the necessary roundness, which is beneficial to the good shape of the cigarette cartridge formed by twisting and molding. Its interior has a small rope-like structure. This small rope segment has a loose structure, including multiple strands of receptor wires 302h and multiple strands of carrier wires 302g that are intertwined and woven together, as well as an aerosol matrix 303 dispersed in the small rope segment.

[0089] It should be noted that in some other embodiments, the shaping layer 301 may not be provided. The overall shaping of the rope 330 may be achieved by external binding, the addition of adhesive, or the rope itself. Regarding the rope itself: the multiple strands of rope may be shaped by twisting together at least one rope 330, thus shaping the multiple strands using the rope itself.

[0090] In one embodiment, the smoke-generating body 3 is bound around its periphery with a single or multiple strand of thread 330 to achieve shaping. Alternatively, in another embodiment, the single or multiple strand of thread 330 is used to bind each rope within the smoke-generating body 3, so that the thread 330 used for binding is not exposed, or binding is achieved through an interlacing structure in which the same thread 330 is partially inserted into the rope and partially exposed outside the rope, such as by sewing or threading, to achieve shaping.

[0091] In another embodiment, adhesive is applied to at least the surface of the yarn 330 before or after weaving by spraying, soaking, or coating, so that the yarns 330 can bond together upon contact, thereby shaping the woven smoke generator 3. The bonding can be done at one end of the smoke generator 3, leaving the middle section with a loose structure. Alternatively, the entire length of the smoke generator 3 can be bonded while maintaining effective porosity and suction resistance. Furthermore, the adhesive hardens relatively after drying, which helps to shape the winding state of the yarn 330 and provides support for the smoke generator 3.

[0092] In some embodiments, at least one thread 330 is drawn out from each of the adjacent ropes in the smoke-generating body 3 and intertwined with each other, such that at least some of the threads 330 are partially intertwined between the adjacent ropes, thereby defining the positions of the adjacent ropes. This process is repeated to achieve overall shaping, which can be done by hand or by textile process.

[0093] It should be noted that in some embodiments, the structure may not include the sensor strand 302h, meaning the cartridge is a non-electromagnetic cartridge, but a conventional heating type. Specifically, it may be a structure formed by intertwining multiple base strands 302g. These features are well understood by those skilled in the art and will not be detailed here. This embodiment only uses an electromagnetic cartridge with multiple sensor strands 302h and multiple base strands 302g as an example for illustration.

[0094] The configuration of the knotting unit in this embodiment is as follows: the receptor strand 302h is a single metal wire 302b, i.e., a monofilament structure; the base strand is a fiber strand made of 20 fiber yarns 302a twisted together, i.e., a multi-yarn structure. The receptor strand 302h is a round wire of iron-nickel-cobalt Kovar alloy 4J29, which has strong magnetism, and its quantity is 10 strands, with an equal cross-sectional diameter of 0.2mm; the base strand 302g is mainly made of poly(m-phenylene isophthalamide) fiber yarn 302a, which can withstand a high temperature of 400℃, and its quantity is 20 strands; the fine particles shown in Figure 8 are a schematic diagram of the deposition location of the aerosol matrix 303 after drying, i.e., it exists in the gaps of small rope segments, inside the base strand 302g, and in its own pores.

[0095] Based on this embodiment one, other application scenarios and design parameters are derived as follows:

[0096] In some applications, factors such as ease of use for smokers, appropriate amount of smoke, and compatibility with common smoking devices are taken into account. Therefore, in this invention, the outer diameter of the magnetic smoke generator 3 is set between 4-10 mm, and the length is controlled between 8-40 mm.

[0097] In other applications, the material of the shaping layer 301 possesses certain mechanical strength and excellent high-temperature stability. Besides various plant fiber-based ordinary paper and cigarette paper 6, inorganic fiber paper such as ceramic paper or glassine paper, and various films such as polytetrafluoroethylene film and aluminum foil 301a can also be used. To achieve better adhesion and ease of cutting, the present invention recognizes a suitable thickness between 0.01 and 0.04 mm.

[0098] In other applications, to facilitate the cutting of the receptor strands 302h and achieve their uniform distribution within the magnetic smoke generator 3, a large number of fine metal wires 302b can be used in the knot, such as 50 equal strands of ultra-fine magnetic metal wires 302b with a diameter of 0.05 mm as heating elements. However, excessive heating elements are difficult to cut during sizing and can easily lead to over-carbonization or even scorching of the magnetic smoke generator 3 during smoking. Therefore, considering economic cost and manufacturability while achieving the necessary eddy current heating effect, this invention defines the number of receptor strands 302h in the cigarette cartridge as between 2 and 100 strands, with the diameter of a single metal wire 302b set between 0.01 and 1 mm.

[0099] When the receptor strand 302h is configured as a single metal wire 302b, the carrier strand 302g can be configured as fiber yarn 302a, fiber strand, or fiber strand wrapped around the single metal wire 302b. When knotting, these feeding units can be programmed into ropes with different structures through various combinations. Some cross-sectional schematic diagrams of combinations are shown in Figures 7-11, where the aerosol matrix 303 is not shown. In Figure 7 (Figure 7 is a schematic diagram of a single filament and single yarn knot structure), the knot unit is a metal wire 302b and a fiber yarn 302a, i.e., a single filament and single yarn pattern; in Figure 8 (Figure 8 is a schematic diagram of a single filament and multi-ply knot structure), the knot unit is a metal wire 302b and a fiber ply, i.e., a single filament and multi-ply pattern, wherein the fiber ply is woven from multiple fiber yarns 302a; in Figure 9 (Figure 9 is a schematic diagram of a single filament core composite ply and a single filament core composite ply knot structure), the knot unit is a single metal core composite ply woven from a single metal wire 302b and multiple fiber yarns 302a, i.e., a single filament composite ply and a single filament composite ply pattern.

[0100] In addition, based on the structure in Figure 8, fiber yarn 302a can also be provided simultaneously. Based on the structure in Figure 9, fiber yarn 302a and / or fiber strands can also be provided simultaneously. Furthermore, those skilled in the art can design the arrangement and combination of strands according to parameters such as flue gas flow rate, heating efficiency, and target customer needs, which will not be listed and described in detail here.

[0101] In the configurations described in Figures 7 to 9, the metal strand configurations are all single metal wires 302b, that is, a physical whole, whose material composition is one of elemental metal, single alloy, and composite metal.

[0102] In some configurations, the metal wires 302b in the rope are made of the same material and are magnetic. Examples of single-element metal wires 302b in this case include iron (Fe) wire, nickel (Ni) wire, and cobalt (Co) wire; examples of single-alloy wires include various magnetic stainless steel wires (such as ferritic stainless steel, martensitic stainless steel, and certain cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloy, cobalt-based amorphous alloy, iron-based nanocrystalline alloy, iron-silicon-aluminum alloy, Invar alloy, constant expansion alloy) wires, and Kovar alloy wires, etc.; composite metal wires 302b contain two or more metal materials, including at least one magnetic material, and composite means that they are combined together by means of rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0103] In other configurations, the rope contains metal wires 302b of different materials, at least one of which is magnetic. A primary function of the magnetic metal wires 302b contained in the receptor strands 302h of this invention is as a magnetic induction heating element, i.e., under the excitation of a high-frequency alternating magnetic field, a strong eddy current heating effect is generated therein.

[0104] Example 4

[0105] Please refer to Figure 10, which is a schematic diagram of a double-wire structure of the receptor strand 302h. The difference from Embodiment 3 lies in the material and structure of the receptor strand 302h. In this embodiment, the receptor strand 302h in the magnetic smoke generator 3 has a double-wire structure, consisting of two magnetic metal wires A and B twisted together, as shown in Figure 10. Metal wire A is a stainless steel 410 (SUS410) round wire with a diameter of 0.12 mm; metal wire B is a nickel (Ni) round wire with a diameter of 0.08 mm. The number of this type of receptor strand 302h in the cartridge is 8 strands. The material, structure (multi-yarn), number of strands, knotting method, bottom plug 5, quaternary composite structure, and other dimensions of the base strand 302g can be the same as in Embodiment 4.

[0106] Based on this second embodiment, other application scenarios and design parameters are derived as follows:

[0107] When a single-strand receptor wire 302h contains multiple metal wires 302b, it can be called a multi-wire structure, such as a composite metal wire made of multiple metals wound together. The basic structure of a composite metal wire has three basic combinations: magnetic metal wires 302b wound with each other, magnetic metal wires 302b wound with non-magnetic metal wires 302b, and non-magnetic metal wires 302b wound with each other. Regardless of the combination, at least two magnetic metal wires 302b are required in the magnetic smoke generator 3. The magnetic metal wires 302b can be made of the aforementioned magnetic materials. The non-magnetic metal wires 302b include copper (Cu) wire, silver (Ag) wire, aluminum (Al) wire, titanium (Ti) wire, chromium (Cr) wire, and various alloys with high ductility (e.g., nickel-chromium alloy, silver-copper alloy, aluminum alloy) wire; all of these metal wires 302b can withstand temperatures up to 500°C.

[0108] When the receptor strand 302h is configured in the form of composite metal strands, the carrier strand 302g can be configured as fiber yarn 302a, fiber strand, or fiber strand wrapped with composite metal strands. When knotting, these feeding units can be programmed into ropes with different structures through various combinations. Some cross-sectional schematic diagrams of combinations are shown in Figures 11-13 (aerosol matrix 303 is not shown).

[0109] In Figure 11 (Figure 11 is a schematic diagram of the multi-ply and multi-yarn knotted structure), the knotted unit is a composite metal ply yarn and fiber yarn 302a, i.e., a multi-ply and single-yarn pattern; in Figure 12 (Figure 12 is a schematic diagram of the single-core composite ply and single-core composite ply knotted structure), the knotted unit is a composite metal ply yarn and fiber ply yarn, i.e., a multi-ply and multi-yarn pattern; in Figure 13 (Figure 13 is a schematic diagram of the multi-core composite ply and multi-core composite ply knotted structure), the knotted unit is a multi-metal core composite ply yarn woven from composite metal ply yarn and multiple fiber yarns 302a, i.e., a multi-ply and multi-ply pattern.

[0110] Based on the structure in Figure 12, fiber yarn 302a can also be provided simultaneously. Based on the structure in Figure 13, fiber yarn 302a and / or fiber strands can also be provided simultaneously. Similarly, those skilled in the art can design the arrangement and combination of strands according to parameters such as flue gas flow rate, heating efficiency, and target customer needs, which will not be listed and described in detail here.

[0111] Example 5

[0112] The cartridge in this embodiment has a ternary structure, as shown in Figure 14, which is a schematic diagram of the structure of a ternary composite cartridge according to this application. The total length of the cartridge in this embodiment is 43mm. Internally, it includes a filter tip 1, a cooling element 2, and a magnetic smoke generator 3. The lengths of the filter tip 1, cooling element 2, and magnetic smoke generator 3 are 13mm, 14mm, and 16mm, respectively. Externally, it is made of cigarette paper 6, which is rolled and bonded in parallel. The shaping layer 301 is an aluminum foil 301a with a thickness of 0.007mm. The sensor strand 302h consists of 8 strands, each a monofilament composite metal wire, formed by electroplating a nickel layer approximately 0.003mm thick onto the outer surface of a 0.25mm diameter iron-nickel alloy 1J50 round wire. The carrier strand 302g consists of 84 fiber strands, each woven from 6 fiber yarns 302a. The basic material of the fiber yarn 302a is modified paper yarn-based fiber capable of withstanding 350℃. The aerosol matrix 303 (not shown in Figure 14) is located in the gaps inside the magnetic smoke generator 3 and inside the fiber yarn 302a itself.

[0113] Based on this embodiment three, other application scenarios and design parameters are derived as follows:

[0114] In some designs, fiber yarn 302a is made from various natural or chemical fibers that do not contain nicotine-like substances. Suitable natural fibers include plant and mineral fibers that can withstand temperatures up to 250°C. Plant fibers include: seed fibers, bast fibers, leaf fibers, and fruit fibers. Seed fibers refer to single-celled fibers grown from the epidermal cells of some plant seeds, such as cotton and kapok. Bast fibers refer to single fibers or processed fibers obtained from the bast of some plants, such as flax, ramie, jute, and bamboo fibers. Leaf fibers refer to processed fibers obtained from the leaves or leaf sheaths of some plants, such as sisal and abaca. Fruit fibers refer to fibers obtained from the fruits of some plants, such as coconut fiber. Mineral fibers refer to fibers obtained from fibrous mineral rocks, mainly composed of various oxides, such as silicon dioxide, aluminum oxide, and magnesium oxide, and their main source is various types of asbestos, such as chrysotile asbestos and crocidolite. Suitable chemical fibers are fibers made through chemical processing, including non-toxic and easily cut man-made fibers, synthetic fibers, and inorganic fibers.

[0115] Man-made fibers, also known as regenerated fibers, refer to textile fibers made from materials containing natural or protein fibers, such as wood, sugarcane, reeds, and soybean protein fibers, through chemical processing. These fibers are then modified to produce the fiber yarn 302a suitable for this invention. Suitable man-made fibers include viscose fiber, modal fiber, bamboo fiber, and acetate fiber. Synthetic fibers are made by first synthesizing units from substances that do not inherently contain cellulose or protein, such as petroleum, coal, natural gas, limestone, or agricultural byproducts. These units are then chemically synthesized and mechanically processed into fibers. These fibers are then modified to be heat-resistant by adding flame-retardant substances or altering their composition. For example, polyester fibers (polyester), polyamide fibers (nylon), aromatic polyamide fibers (aramid), polytetrafluoroethylene fibers, and polyimide fibers are modified to withstand temperatures of 250°C or even 400°C, making them suitable for use as an aerosol carrier in this invention. Simultaneously, at these high temperatures, they do not undergo significant chemical reactions, release harmful substances, produce unpleasant odors, or generate large amounts of dust. Inorganic fibers are made from natural inorganic materials or carbon-containing polymer fibers through artificial spinning or direct carbonization, including glass fibers, metal fibers and carbon fibers.

[0116] For this invention, a suitable number of carrier strands can achieve easy cutting and a high porosity. Higher porosity allows for the retention and locking of a larger amount of aerosol matrix 303, while providing lower draw resistance in smoking applications. Given that the diameter of the magnetic smoke generator 3 is in the range of 4-10 mm, and considering the significant differences in the equivalent diameter of the fiber yarns 302a, the number of carrier strands is defined as between 10 and 2000 in this invention.

[0117] Based on the description of the foregoing embodiments, the innovation lies in constructing the heating element as a metal wire 302b and configuring the aerosol matrix 303 carrier as a fiber yarn 302a. Then, the metal wire 302b, the strands of the metal wire 302b, the fiber yarn 302a, the fiber strands, and the metal fiber composite strands are combined and woven into a rope-like structure, ensuring that the rope contains at least two magnetic metal wires 302b, preferably multiple evenly distributed magnetic metal wires 302b. Then, the aerosol matrix 303 is added to the rope, and it is wrapped and cut into magnetic smoke generators 3 for subsequent cartridge molding. The cartridge manufacturing method involves key processes such as wire drawing, spinning, rope weaving, deposition, and splicing. A brief description of one manufacturing process of the cartridge of the present invention is provided below.

[0118] Example 6

[0119] Please refer to Figure 15, which is a schematic diagram of the structure of a rope-shaped, deposited paper yarn smoke generator 3 according to this application. In this embodiment, the equivalent diameter of the smoke generator 3 is 6.6 mm and the length is 12 mm. For ease of illustration, the partial structure is expanded and extended in the figure. It is formed by twisting an inner core rope 10 and seven outer outer layer strands 20, with an aerosol matrix 303 uniformly deposited between them. The core rope 10 has an equivalent diameter of 3 mm, and six inner core strands 102 are extended and wound around an inner core strand 101 at a certain inclination and direction. The outer layer strands 20 have an equivalent diameter of 2 mm, and six outer core strands 202 are extended and wound around an outer core strand 201 at a certain inclination and in the opposite direction. Here, the core rope 10 and the outer layer strand 20 have the same structure, material and size, and the inner core yarn 101 (101, 201) and the plain yarn (102, 202) also have the same configuration, that is, they are all paper yarn.

[0120] In some applications, multiple layers of outer strands are twisted together. In this case, the equivalent diameter of the strands is relatively small. Various sizes of paper yarn and braided structures are used in optimized combinations to increase porosity, thereby achieving a greater load-bearing capacity of the aerosol matrix 303 while maintaining low suction resistance. A cross-sectional schematic diagram of this twisted rope configuration is shown in Figure 16. Figure 16 is a schematic diagram of a structure with multiple strands on the outer side (where the aerosol matrix 303 is not shown).

[0121] Example 7

[0122] Figure 17 shows a schematic diagram of a rope-shaped, settled paper yarn smoke generator 3, with an equivalent diameter of 6.6 mm and a length of 12 mm. For ease of illustration, the partial structure is expanded and extended in the figure. It is formed by twisting an inner core rope 10 with seven outer outer layer strands 20, with an aerosol matrix 303 uniformly deposited between them. An outer shaping layer 301 (only a portion is shown) wraps the rope into a slender column shape. The core rope 10 has an equivalent diameter of 3 mm and contains a magnetic metal wire 302b inner core wire 101 with a diameter of 0.25 mm, made of 4J29 iron-nickel-based alloy. It also contains six inner strands 102, which are extended and wound at a certain angle and direction. The equivalent diameter of the inner strands 102 is 2 mm. The outer layer strands 20 and the core strands 10 are configured exactly the same, that is, in the basic unit, the inner core wire 101 (101, 201) is a magnetic metal wire 302b, and the plain wire (102, 202) is a paper yarn.

[0123] This type of deposited paper yarn smoke generator 3 is used to manufacture electromagnetic cigarette cartridges. When the electromagnetic cigarette cartridge is used in conjunction with an electromagnetic smoking device, the magnetic metal wires 302b (101, 201) here function as sensors 340, coupling with the high-frequency alternating electromagnetic field generated in the smoking device. This rapidly increases the temperature through eddy current heating, then heats the adjacent aerosol matrix 303. Therefore, the cigarette cartridge in this embodiment is a magnetic cartridge, with its heating element (sensor 340), the magnetic metal wires 302b (101, 201), discretely distributed at the inner center of each strand of the smoke generator 3. This arrangement offers advantages such as easy cutting during processing and uniform heating and carbonization during operation. This spatial configuration of the heating element can be called a multi-core dispersed heating mode within the rope.

[0124] Example 8

[0125] Referring to Figures 18 and 19, Figure 18 is a schematic diagram of the structure of the smoke-generating body 3 with a central heating channel 320 shown in an embodiment of this application. Figure 19 is a cross-sectional view shown in Figure 18. The tobacco cartridge is generally arranged in a cylindrical strip, and includes a filter 1, a cooling component 2, and a smoke-generating body 3. The filter 1, cooling component 2, and smoke-generating body 3 refer to the tobacco cartridge structure in any of the above embodiments, with the difference being:

[0126] In this embodiment, the smoke-generating body 3 includes a textile body 310 and a heating channel 320 formed at the center of the textile body 310. The textile body 310 contains a smoke-generating matrix, and the heating channel 320 is integrally formed at the center of the textile body 310. During the forming process of the textile body 310, an axial heating channel 320 is integrally formed at the center of the textile body 310. The heating channel 320 is an intrinsic component of the textile body 310, rather than being formed by subsequent drilling or insertion of other components. For example, during weaving or twisting, multiple strands of yarn 330 are gathered and fixed around a central axis by a mandrel, a die, or a specific weaving process, thereby leaving a continuous channel at the center, the inner wall of which is formed by the surface of the yarn 330. This channel is integral with the textile body 310, rather than being formed by subsequent drilling or material removal, which ensures the regularity of the channel shape, the uniformity of the wall surface, and close thermal contact with the surrounding heating matrix. The heating channel 320 is specifically designed to house heating elements, such as resistance heating rods, metal components acting as inductive couplers, or as a channel for wave energy transmission. The design of the heating channel 320 alters the integration relationship between the heating method and the smoke generator 3, achieving efficient, uniform, and controllable heating.

[0127] The textile body 310 includes multiple threads 330 that are in contact with each other and extend along a predetermined direction, and the multiple threads 330 are combined to form a structure with an axial heating channel 320.

[0128] The dimensions (such as inner diameter) of the heating channel 320 can be designed according to the type of heating element selected and the required heat transfer efficiency. Typically, its inner diameter is between 0.5 mm and 3 mm to accommodate different heating rods, inductive coupler probes or other energy emitters.

[0129] The smoke generator 3 of this application can be adapted to different heating methods based on different textile structures, or the same textile body 310 can be adapted to multiple heating methods.

[0130] In specific embodiments, based on Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5 (Figures 1 to 14), a heating channel 320 is integrally formed inside the textile body 310. Based on Embodiment 6 and Embodiment 7 (Figures 15 to 17), no core wire is provided inside.

[0131] The smoke generator 3 comprises multiple threads 330 that are in contact with each other and extend along a predetermined direction, each thread 330 bearing a smoke-generating matrix. These threads 330 are not simply arranged in parallel or loosely aggregated; rather, they form a textile body 310 with an axial heating channel 320. The textile body 310 is a stable three-dimensional structure formed by combining multiple threads 330 through processes such as weaving (twisting, winding, braiding, knitting) or weaving. This structure of the textile body 310 allows the threads 330 to not only make lateral contact but also potentially interlacing points, thereby enhancing the overall structural integrity and mechanical strength and preventing loosening during use or processing. The heating channel 320 is integrally formed at the center of the textile body 310 for the insertion of a heating element; the heating channel 320 is an integrally formed structure during the forming process of the textile body 310.

[0132] Multiple threads 330 that are in contact with each other and extend along a preset direction are combined to form a textile body 310 with an axial heating channel 320. During the forming process of the textile body 310, a physical channel for the heating element to pass through is formed, which avoids the mechanical resistance and element damage caused by the heating element forcibly piercing into the smoke generator 3, effectively preventing the heating element and smoke generator from deforming and maintaining the shape of the heating element and the textile body 310.

[0133] The textile body 310 formed by multiple yarns 330 has a certain holding force, which can effectively ensure the shape of the textile body 310, providing structural support and shape retention for the entire textile body 310, ensuring the geometric stability of the heating channel 320 during use, thereby ensuring the accurate alignment of the heating element and the stability of the heat transfer path.

[0134] Referring to Figures 20 and 21, Figure 20 is a structural schematic diagram of one embodiment of the composite yarn shown in this application. Figure 21 is a structural schematic diagram of another embodiment of the composite yarn shown in this application. The yarn body 330 may consist only of fiber yarn 302a, or it may consist of fiber yarn 302a and metal wire 302b. When the yarn body 330 includes metal wire 302b, the metal wire 302b can provide support to maintain the shape of the textile body 310.

[0135] The composite yarn includes fiber yarns 302a and metal wires 302b, with the fiber yarns 302a wound around the metal wires 302b. One or more fiber yarns 302a are wound around each metal wire 302b. Multiple yarns 330 are wound together to form a composite yarn; multiple composite yarns combine to form a textile body 310, with heating channels 320 formed inside the textile body 310. A reinforcing structure 311 is wound around the outside of one or more composite yarns; the reinforcing structure 311 is a metal wire 302b or a metal mesh. The reinforcing structure 311 not only maintains the shape of the textile body 310 but also plays a role in heat transfer, so that the temperature distribution inside the textile body 310 is uniform when heated.

[0136] In one embodiment, the heating element of the textile body 310 is configured as a resistance heating rod, which is configured to be inserted into the heating channel 320 and in contact with the inner wall of the heating channel 320, and the resistance heating plate transfers heat to the inner wall of the heating channel 320.

[0137] It should be noted that, in some embodiments, the textile body 310 is formed by combining multiple yarns 330 through textile (twisting, winding, braiding, knitting) or weaving processes. The yarns 330 include metal wires 302b, which support the shape of the textile body 310 and the heating channel 320 at the center of the textile body 310.

[0138] Figure 22 is a schematic diagram showing the support member 312 disposed in the heating channel 320 according to an embodiment of this application.

[0139] Referring to Figure 22, the smoke generator 3 also includes an annular support member 312, which is used for shaping the textile body 310. The support member 312 can be disposed within the heating channel 320 and fits against the inner peripheral wall of the heating channel 320.

[0140] In one embodiment, an annular support mesh is provided inside the heating channel 320, and the support mesh is attached to the inner sidewall of the heating channel 320; the support mesh is used to abut against the resistance heating rod. The support mesh is used to maintain the shape of the heating channel 320 and can also be used for heat conduction.

[0141] In one example, the support mesh is a structure made of a metallic material. In another embodiment, the metallic mesh is a structure formed by weaving or knitting through yarn 330.

[0142] In some embodiments, the support member 312 is embedded in the textile body 310 and located near the heating channel 320, thereby supporting the textile body 310 and shaping it.

[0143] In one example, the support 312 has a spiral structure in the axial direction of the textile body 310. The support 312 is inserted into the textile body 310 near the heating channel 320 to shape the textile body 310 and maintain its shape.

[0144] In another embodiment, the support 312 is a filamentous or strip-shaped metal structure, and the support 312 can also transfer heat to make the temperature distribution within the textile body 310 more even.

[0145] In one embodiment, a resistance heating rod is threaded through the textile body 310, and a heat-conducting wire is embedded in the textile body 310. The heat-conducting wire extends at least partially into the heating channel 320 to contact the resistance heating rod, thereby enabling the heat from the resistance heating rod to be transferred to the interior of the textile body 310 relatively quickly, resulting in a more uniform temperature distribution within the textile body 310.

[0146] Referring to FIG23, FIG23 is a schematic diagram of a textile body 310 with a sensor 340 according to an embodiment of the present application. The sensor 340 in FIG23 is disposed on the outer periphery of the textile body 310 and is attached to at least a portion of the outer periphery of the textile body 310. The sensor 340 is configured to heat the textile body 310 by electromagnetic induction when the textile body 310 is placed in an alternating magnetic field.

[0147] In one embodiment, the sensor 340 is a filamentous structure, spirally wound around the outer periphery of the textile body 310, and is made of magnetic metal wire 302b. The sensor 340 can generate heat through electromagnetic induction, such as an inductive coupler inserted at the center of the textile body 310, which can generate an alternating magnetic field.

[0148] In another embodiment, the sensor 340 is a ring-shaped structure made of a metal mesh containing magnetic metal, which covers the outer periphery of the textile 310.

[0149] Referring to Figure 24, which is a schematic diagram illustrating that the sensor 340 is partially embedded within the textile body 310 according to an embodiment of this application, the sensor 340 is partially embedded within the textile body 310 in the winding direction and partially adheres to the outer periphery of the textile body 310. The sensor 340 generates heat to heat the textile body 310 for user suction.

[0150] The sensor 340 is partially embedded within the textile body 310 in the winding direction and partially disposed on the outer periphery of the textile body 310, thus providing support to the textile body 310 when heated. Simultaneously, the embedding of the sensor 340 within the textile body 310 increases the contact area between the sensor 340 and the textile body 310, resulting in a more uniform temperature distribution within the textile body 310.

[0151] Referring to FIG25, FIG25 is a schematic diagram of a first embodiment of the present application showing that the sensor 340 is disposed at the outer end of the textile body 310. In FIG25, the sensor 340 is a filament structure, and the sensor 340 is disposed on the yarn 330 at the radial outer end of the textile body 310 so that the textile body 310 can have the function of heating the outer end in the radial direction.

[0152] In Figure 25, the receptor 340 has a filamentous structure. Receptors 340 are disposed on the outermost threads 330 of the textile body 310, allowing heat from the receptors 340 to be transferred radially from the outside to the inside of the textile body 310. In Figure 25, each thread 330 of the textile body 310 is provided with a receptor 340, and the receptors 340 are disposed within the textile body 310.

[0153] Referring to FIG26, FIG26 is a schematic diagram of a second embodiment of the present application showing that the sensor 340 is disposed at the outer end of the textile body 310. The structure in FIG26 is the same as that in FIG25, except that in FIG26, the sensor 340 is disposed on the circumferentially spaced yarns 330 outside the textile body 310, thereby reducing the number of sensors 340 used.

[0154] Referring to Figure 27, which is a schematic diagram showing the sensor 340 wound on the outer end yarn 330 of the textile body 310 according to this application. In Figure 27, the sensor 340 is wound on the yarn 330 at the radially outer end of the textile body 310. Each yarn 330 at the radially outer end of the textile body 310 is provided with a sensor 340.

[0155] Referring to Figure 28, which is a schematic diagram showing that the sensors 340 are wound at intervals on the outer end yarn 330 of the textile body 310, according to this application. In Figure 28, the sensors 340 are wound on the yarn 330 at the radially outer end of the textile body 310. The sensors 340 are provided on the yarn 330 at the radially outer end of the textile body 310, and the sensors 340 are disposed on the yarn 330 spaced circumferentially apart from the yarn.

[0156] In other embodiments, multiple strands 330 are wound together to form a composite strand; multiple composite strands are combined to form a textile body 310; a sensor 340 is disposed within the composite strand at the radial outer end of the textile body 310.

[0157] In some embodiments, the heating element of the textile body 310 is configured as an inductive coupler capable of generating an alternating magnetic field, and a magnetic metal is disposed on the textile body 310. After the inductive coupler extends into the heating channel 320, the magnetic metal disposed on the textile body 310 heats up, thereby heating the textile body 310.

[0158] In this application, a magnetic metal is disposed within the textile body 310. Based on the structure of the smoke generator 3 described above, a magnetic metal is disposed within the yarn 330, and the textile body 310 is heated by the heating effect of the magnetic metal within the yarn 330.

[0159] In other embodiments, no magnetic metal is provided inside the yarn 330, but magnetic metal is provided between the yarns 330 so that it can be used to heat the textile body 310.

[0160] In one embodiment, a magnetic metal is disposed on the inner wall of the heating channel 320. The magnetic metal can be disposed at any position on the textile body 310, and there is no limitation herein.

[0161] In another embodiment of this application, the heating element of the textile 310 is configured as a wave energy emitter capable of emitting microwave or infrared radiation energy into the heating channel 320. The textile 310 is made of a material capable of transmitting or absorbing specific wavelengths to a certain extent.

[0162] For microwave heating, the material of the 330 wire can be a material with high dielectric loss (such as water-containing fibers, certain ceramic fibers, or fibers doped with carbon materials).

[0163] For infrared heating, the 330 material should have good infrared absorption characteristics (such as dark-colored fibers or fibers containing metal oxides).

[0164] The heating channel 320 formed in the center of the textile body 310 is not only a structural cavity, but also a channel for energy transmission and concentration.

[0165] A microwave transmitter (such as a magnetron) or an infrared radiator (such as a halogen lamp or a ceramic infrared heating tube) is arranged in the smoke device, aligned with the inlet of the heating channel 320 at the bottom of the smoke cartridge. Microwave or infrared radiation energy is emitted into the heating channel 320. Because the geometry and size of the channel may be designed to match a specific wavelength, the energy can propagate within the channel in a specific mode (such as a waveguide mode for microwaves) and penetrate axially into the interior of the smoke generator 3.

[0166] In order to transmit wave energy efficiently and directionally within the heating channel 320 and reduce scattering losses in all directions, the wall of the heating channel 320 itself can be constructed as an energy guiding structure.

[0167] For microwaves, the heating channel 320 can be designed as a microwave waveguide. The material or additional coating of the wires 330 forming the inner wall of the channel needs to have specific electromagnetic properties. For example, the inner wall of the channel can be woven or plated with a layer of metal (such as copper or aluminum) to form a metal waveguide that confines the microwaves within the tube for transmission. The diameter and shape of the channel are designed according to the microwave frequency (e.g., for a 2.45 GHz household microwave frequency, there are certain requirements for the cutoff diameter of a circular waveguide).

[0168] For infrared applications, the heating channel 320 can be configured as an infrared radiation cavity. The inner wall of the channel can be treated with a highly infrared-reflective surface (e.g., gold-plated, aluminum-plated) to form an optical waveguide that reflects and guides infrared radiation along the axial direction. Alternatively, the inner wall can be made of an infrared-transparent or translucent material (e.g., a quartz fiber woven layer), allowing infrared light to penetrate the inner wall and directly irradiate the surrounding smoke-generating material.

[0169] The energy guiding structure ensures that energy can penetrate deep into the smoke-generating body 3 to achieve volume heating, rather than just surface heating. The energy guiding structure is responsible for "energy transfer," while the wave-absorbing layer is responsible for "energy conversion" (converting wave energy into heat energy).

[0170] In this embodiment, the absorbing layer is positioned adjacent to the energy guiding structure.

[0171] If the heating channel 320 is a metal waveguide, the absorbing layer can be a thin layer of microwave absorbing material coated on the inner wall of the waveguide (such as carbon-doped silicone or ferrite coating), or an absorbing block set at the waveguide outlet.

[0172] In one embodiment, the yarn 330, or a portion thereof, loaded with the aerosol matrix 303 in the textile 310 is designed as an absorbing layer. For example, trace amounts of microwave or infrared absorbers such as carbon particles or metal oxide powder are incorporated into the fibers. These energy-absorbing yarns 330 rapidly heat up, thereby heating the aerosol matrix 303.

[0173] The guiding structure delivers energy to the target area, where the absorbing layer efficiently captures the energy and converts it into heat, achieving precise heating locally or globally.

[0174] In other embodiments, a gradient absorbing structure can be designed, in which the concentration or type of absorbing material changes along the axial or radial direction of the channel, thereby controlling the temperature gradient distribution of the heat generation.

[0175] In one embodiment, the ratio of the cross-sectional area of ​​the heating channel 320 to the cross-sectional area of ​​the textile body 310 is 1:2 to 1:5, so as to ensure that the textile body 310 has a sufficiently large area so that there is a sufficient smoke-generating matrix inside the textile body 310.

[0176] The embodiments of this application also provide a tobacco cartridge, which includes the smoke-generating body 3 described above. Since this tobacco cartridge adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0177] Referring to Figure 29, which is a schematic diagram of a smoking device according to an embodiment of this application, a heating element 400 is disposed within a smoke-generating body 3. This application also provides a smoking device comprising a tobacco cartridge and a heating element 400, and the smoking device includes the aforementioned smoke-generating body 3. Since this tobacco cartridge employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

Claims

1. A smoke-generating body, comprising: Multiple interconnected wires extending in a predetermined direction, each wire being loaded with a smoke-generating matrix; A textile body having an axial heating channel formed by the composite of multiple yarns; the heating channel is integrally formed at the center of the textile body for the insertion of a heating element; the heating channel is integrally formed during the forming process of the textile body.

2. The smoke-generating body according to claim 1, wherein, It also includes an annular support for shaping the textile; the support is fitted against the inner circumferential wall of the heating channel; or, The support is embedded in the textile body and is located in the textile body near the heating channel.

3. The smoke-generating body according to claim 1, wherein, It also includes a receptor disposed on the outer periphery of the textile and attached to at least a portion of the outer peripheral surface of the textile; or, The receptor is embedded in the textile body and located near the outer radial end of the textile body.

4. The smoke-generating body according to claim 3, wherein, The receptor is a filamentous structure, and the receptor is spirally wound around the outer periphery of the textile.

5. The smoke-generating body according to claim 4, wherein, The receptor is partially embedded in the textile body in the winding direction and partially attached to the outer periphery of the textile body.

6. The smoke-generating body according to claim 3, wherein, The receptor is a filamentous structure, and the receptor is disposed on the thread at the radial outer end of the textile.

7. The smoke-generating body according to claim 6, wherein, The textile body has a sensor on each thread at its radially outer end; or... The sensors are disposed on the yarns spaced circumferentially outside the textile body.

8. The smoke-generating body according to claim 3, wherein, The receptor is wound around the yarn at the radially outer end of the textile body; Alternatively, multiple strands of the yarn may be wound together to form a composite strand; multiple composite strands may be combined to form the textile body; the sensor may be disposed within the composite strand at the radial outer end of the textile body.

9. The smoke-generating body according to claim 3, wherein, The receptor is a ring-shaped structure made of a metal mesh containing magnetic metal, which covers the outer periphery of the textile.

10. The smoke-generating body according to any one of claims 1 to 9, wherein, Multiple strands of the aforementioned yarn are wound together to form a composite strand; multiple composite strands are combined to form the textile body; One or more of the composite strands are wound with a reinforcing structure on their outer side; the reinforcing structure is a metal wire or a metal mesh.

11. The smoke-generating body according to any one of claims 1 to 9, wherein, The ratio of the cross-sectional area of ​​the heating channel to the cross-sectional area of ​​the textile body is 1:2 to 1:

5.

12. A type of smoke cartridge, wherein, Includes the smoke-generating body according to any one of claims 1 to 11.

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