Smoking body, cartridge, and smoking device

Abstract

The application discloses a smoking body, a smoke cartridge and a smoking device, and belongs to the technical field of non-combustion non-smoke and tobacco products. The smoking body comprises a plurality of thread bodies, the thread bodies containing a smoking medium, and a plurality of susceptor strands which are woven with the plurality of thread bodies; wherein the thread bodies and the susceptor strands extend along a preset direction; and on an end surface of the smoking body, the plurality of susceptor strands are distributed in a ring shape around an axis of the smoking body.

Description

[0001] This application is a divisional application. The original application has the application number 202510744383.1 and the original application date is June 4, 2025. The entire contents of the original application are incorporated herein by reference.

[0002] The original application claims priority to Chinese patent application filed on January 22, 2025, with application number 202510107100.2, entitled "Smoke Generating Device, Smoke Cartridge, Smoke Generating Body and Preparation Method", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of heated non-smoke and tobacco products technology, and in particular to a smoke generator, a smoke cartridge, and a smoke generating device. Background Technology

[0004] In related technologies, heated tobacco products (HNB) typically use needle-shaped or sheet-shaped heating elements inserted into the central area of ​​the tobacco body for central heating, or use ring-shaped heating elements to circumferentially heat the tobacco body from the outside. However, this heating method has shortcomings, such as overly concentrated heat, which can easily lead to uneven carbonization, or even localized overheating of the tobacco body, resulting in excessive carbonization, charring, or even the release of harmful substances. Summary of the Invention

[0005] This application provides a smoke generator, a smoke cartridge, and a smoke-generating device to at least partially solve the above-mentioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, a smoke-generating body is provided, comprising: a plurality of wires, each wire containing a smoke-generating medium; and... Multiple receptor strands are woven together with multiple yarn bodies to form a shape; The line body and the sensor strands both extend along a preset direction; on the end face of the smoke generator, multiple sensor strands are arranged in a ring around the axis of the smoke generator.

[0007] Optionally, any two adjacent receptor strands in the plurality of receptor strands are spaced apart, and at least one strand is provided between two adjacent receptor strands.

[0008] Optionally, multiple receptor strands are arranged in a ring array to form a first ring column.

[0009] Optionally, each receptor strand is surrounded by a plurality of strands.

[0010] Optionally, multiple receptor strands are arranged in a ring array and form at least a first ring column and a second ring column arranged adjacent to each other, with the first ring column located between the second ring column and the axis of the smoke-generating body.

[0011] Optionally, the first and second annular columns are staggered in the circumferential direction of the smoke-generating body.

[0012] Optionally, the first annular column includes a first receptor strand and a second receptor strand, and the second annular column includes a third receptor strand. The first, second, and third receptor strands are arranged adjacent to each other, and the centers of the first, second, and third receptor strands are located at the vertices of an equilateral triangle, respectively.

[0013] Optionally, each receptor strand in the second annular column is partially surrounded by a plurality of strands.

[0014] Optionally, smoke channels are formed between adjacent wires and between sensor strands.

[0015] According to a second aspect of this application, a smoke cartridge is provided, comprising the smoke-generating body described above.

[0016] According to a third aspect of this application, a smoke-generating device is also provided, comprising: Smoke generating device, including electromagnetic heating coil; and, Smoke cartridges, including the aforementioned smoke-generating body; The cartridge is configured to be inserted into the smoke-generating device, and the electromagnetic heating coil is configured to be coupled to the electromagnetic field of multiple sensor strands.

[0017] In the smoke generator of this application embodiment, the smoke generator is configured to include multiple yarns and multiple receptor strands woven together with the multiple yarns. The yarns contain a smoke-generating medium. Both the yarns and the receptor strands extend along a preset direction. On the end face of the smoke generator, the multiple receptor strands are arranged in a ring around the axis of the smoke generator. This makes the receptor strands (metal wires) that function as heating elements finer and more uniformly distributed. As a result, the aerosol matrix in the yarn is heated more evenly, the smoke output speed is faster, the smoke volume is fuller, carbonization can be achieved more evenly, the utilization rate of effective components is improved, and the phenomenon of excessive carbonization caused by local overheating, resulting in charring or even the release of harmful substances is reduced.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0020] Figure 1 This is a schematic diagram of a smoke cartridge structure containing a smoke-generating body with parallel wire bundles. Figure 2 yes Figure 1 A schematic cross-sectional view of the smoke-generating body along section AA in the embodiment; Figure 3 This is a schematic diagram of the smoke cartridge structure of the smoke generator containing the integral twisted wire harness structure of this application; Figure 4a yes Figure 3 A schematic diagram of the structure viewed obliquely from the BB end face; Figure 4b yes Figure 3 A schematic diagram showing the distribution of multiple receptor strands when viewed directly from the BB end face; Figure 5 This is a schematic diagram of a combined cross-sectional structure of a slender wire for the smoke-generating body in this application; Figure 6 This is a schematic diagram of another embodiment of the smoke-generating body of this application; Figure 7a This is a schematic diagram of a cross-section of a hollow structure of a non-metallic molded fine wire or metal wire. Figure 7b This is a schematic diagram of the cross-section of another type of non-metallic molded fine wire or metal wire hollow structure; Figure 8 This is a schematic diagram of a four-section structure of a cigarette cartridge according to this application; Figure 9 This is a schematic diagram of a knotted rope structure made of monofilament and monoyarn; Figure 10 This is a schematic diagram of a knotted rope structure consisting of monofilament and multi-strand yarns; Figure 11 This is a schematic diagram of a single-core composite strand and a single-core composite strand knotted rope structure; Figure 12 This is a schematic diagram of a double-filament structure of a receptor strand; Figure 13 This is a schematic diagram of a multi-strand and multi-yarn knotted rope structure; Figure 14 This is a schematic diagram of a single-core composite strand and a single-core composite strand knotted rope structure; Figure 15 This is a schematic diagram of a multi-core composite strand and a multi-core composite strand knot structure; Figure 16 This is a structural schematic diagram of a ternary composite e-cigarette cartridge according to this application; Figure 17This is a schematic flowchart of an embodiment of the method for preparing the e-cigarette cartridge of this application; Figure 18 This is a schematic diagram of the structure of a rope-shaped submerged paper yarn smoke generator according to this application; Figure 19 This is a schematic diagram of a structure with multiple strands on the outside; Figure 20 This is a schematic diagram of a rope-shaped, settled paper yarn smoke generator; Figure 21 This is a schematic diagram of a smoke generator with magnetic metal wires wound around the middle layer of a precipitated paper yarn. Figure 22 This is a schematic diagram of the magnetization temperature curve of a magnetic sensor made of iron-nickel alloy 4J29. Figure 23 This is a schematic flowchart of an embodiment of the method for manufacturing the precipitated paper yarn smoke body of this application; Figure 24 This is a schematic diagram of the structure of the precipitated paper yarn smoke generator; Figure 25 This is a schematic diagram of the structure of a sensor metal wire (88a) mixed into a precipitated paper yarn smoke generator; Figure 26 This is a schematic diagram of the smoke generator of the deposited paper yarn after being soaked in an aerosol matrix, under a scanning electron microscope at 100X magnification. Figure 27 This is a schematic diagram of a 100X magnification scanning electron microscope image of a precipitated paper yarn smoke generator (containing a sensor wire (88a)) after being immersed in an aerosol matrix; Figure 28 This is a schematic diagram of a fabrication process for the composite metal wire of this application; Figure 29 This is a schematic flowchart of an embodiment of the method for preparing the composite metal wire of this application; Figure 30 yes Figure 28 A magnified schematic diagram of the composite metal wire structure at point A; Figure 31 This is a schematic diagram of another fabrication process for the composite metal wire of this application; Figure 32 This is a schematic flowchart of another embodiment of the method for preparing the composite metal wire of this application; Figure 33 yes Figure 31 A magnified schematic diagram of the composite metal wire at point B; Figure 34 This is a schematic diagram of another fabrication process for the composite metal wire of this application; Figure 35 yes Figure 34 A magnified schematic diagram of the composite metal wire at point C; Figure 36 This is a schematic diagram of a structure containing composite metal wires in one embodiment; Figure 37 This is a schematic diagram of the structure of an embodiment of the smoke-generating device of this application. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] When inhaling heated tobacco products, the key chemical ingested by the user is nicotine. Simultaneously, the production of a large amount of vapor and 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.

[0029] 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 segment) is a layered stack of tobacco sheets.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Example 1 Please see Figure 1 , Figure 1This is a schematic diagram of a cigarette cartridge structure containing a smoke-generating body 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. In this embodiment, the lengths of the filter tip 1, cooling element 2, and smoke-generating body 3 are 11mm, 18mm, and 16mm, respectively. These three components are enclosed by a cigarette tube 4, forming a three-section cigarette cartridge. The outer diameter of the cartridge can be 7.2mm, and the total length is 45mm. The outermost layer of the smoke-generating body 3 is a shaping layer 301, which can be a thin layer of aluminum foil composite paper with an average wall thickness of 0.3mm. It contains multiple parallel stacked slender wires 302, each wire being straight. The wires can be made of modified aramid fiber, capable of withstanding temperatures up to 400℃ without significant chemical changes or the release of harmful substances. They are spun into fiber yarns, with an aerosol matrix 303 diffusely distributed on their surface and inside. The cartridge also contains longitudinally straight wire gaps 304, forming part of the airway. Furthermore, the wire gap 304 is controllable. The size of the wire gap 304 can be controlled by adjusting the outer diameter of adjacent slender wires 302, thereby controlling the equivalent inner diameter of the air passage. 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 adjusting 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 different smoke volumes caused by uneven heating in the smoke generator 3.

[0037] For example, in some embodiments, multiple first-strand structural units may be provided in the middle of the smoke-generating body and multiple second-strand structural units may be provided in the periphery. The diameter of the first-strand structural unit may be larger than the diameter of the second-strand structural unit, that is, the middle part is a thicker line and the outside part is a thinner line, which can obtain an airway with a relatively large equivalent diameter.

[0038] In addition, in some embodiments, the diameter of the first linear structural unit in the middle of the smoke-generating body can be smaller than the diameter of the multiple second linear structural units in the periphery, that is, the middle part is a thin line and the outside is a thick line, which can obtain an airway with a relatively small equivalent diameter.

[0039] In addition, the first and second line structural units are not limited to the middle or the periphery. They can be combined in a cross-weaving manner. The equivalent diameter of the airway can be adjusted by changing the ratio of thick and thin lines. Detailed features of this part will be introduced later, and will not be listed and described in detail here, as they are within the understanding of those skilled in the art.

[0040] By adjusting the different arrangements of the strand structure units with different diameters in the middle and outer periphery of the smoke generator, the equivalent airway diameter of the smoke generator can be controlled. Users can choose smoke generators with different smoke output, different suction resistance, and different air intake according to their different usage habits.

[0041] Optionally, the first and second strand structural units mentioned above can both be composed of multiple strands, or the first and second strand structural units can be composed of single strands with different diameters; no specific limitation is made here.

[0042] In another embodiment, the local size of the wire gap 304 is controlled by controlling the local outer diameter of the 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 air passage can vary in width in the axial direction, thereby making the flow velocity of the airflow in a single air passage controllable. This can be combined with the heat distribution of the heating element to control the flow velocity in the air passage, so as to achieve a better smoke generation effect.

[0043] When the wire is manufactured using a spinning process, its surface is not smooth; in reality, it is uneven (when multiple wires run in parallel, they are not completely flat and smooth channels; the internal uneven buffer space is also beneficial for cooling when airflow passes through). This structural feature, combined with the aforementioned adjustable gap, constitutes a better way to control airflow speed.

[0044] It should be noted that in some other embodiments, the shaping layer 301 may not be provided. The overall shaping of the yarn may be achieved by external binding or by incorporating adhesive or the yarn itself.

[0045] Figure 2 yes Figure 1 The schematic cross-sectional view of the smoke generator along section AA in the embodiment (smoke tube 4 is not shown here) shows that the shaping layer 301 can be composed of aluminum foil 301a and pine paper 301b. After shaping, the outer periphery is circular, and the smallest unit of the slender wires 302 inside is made of the same material and is a single, relatively thick fiber yarn. This configuration inside the smoke generator 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 by 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 is approximately circular, the fiber material is soft and fluffy, the slender wires 302 are not intertwined, and the numerous longitudinal gaps 304 make the entire smoke generator 3 very loose and breathable, and a low draw resistance can be expected during smoking applications. Aluminum foil has a certain strength, which is beneficial for shaping and ensuring roundness.

[0046] 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 10-2,000 strands.

[0047] In this embodiment, the cartridge does not contain a heating element. The thin wires 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 annular heating elements to circumferentially heat the smoke-generating body 3 section from the periphery of the smoke tube 4.

[0048] It should be noted that in some designs, the fiber yarn 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.

[0049] 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.

[0050] 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.

[0051] Suitable chemical fibers are fibers that have been chemically processed, including non-toxic and easily cut man-made fibers, synthetic fibers, and inorganic fibers.

[0052] 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 fiber yarns suitable for this invention. The main suitable man-made fibers include viscose fiber, modal fiber, bamboo fiber, and acetate fiber.

[0053] 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.

[0054] 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.

[0055] (3) Paper includes plant fiber paper (non-tobacco plant and tobacco plant) and mineral fiber paper (ceramic paper, glass paper, graphite paper).

[0056] Example 2 Example 2 describes the design of a quaternary composite structure e-cigarette cartridge. Please refer to [link / reference]. Figure 3 , Figure 3 This is a schematic diagram of the smoke cartridge structure of the smoke generator containing the integrally twisted wire harness structure of this application, as shown below. Figure 3 As shown, the key difference from Embodiment 1 is that the slender wire 302 is integrally twisted and contains magnetic metal wire, making it suitable for electromagnetic induction heating smoking applications. The lengths of the filter tip 1, cooling component 2, smoke generator 3, and bottom plug 5 can be 11mm, 18mm, 12mm, and 4mm, respectively. These four components are wrapped by the smoke tube 4, forming a four-segment electromagnetic cartridge with an outer diameter of 7.2mm and a total length of 45mm. The shaping layer 301 is a thin tissue paper with a thickness of 0.025mm; it wraps multiple integrally twisted slender wires 302, and the solid aerosol matrix 303 is distributed in a portion of the slender wires and in the internal gaps 304 of the smoke generator 3. The bottom plug 5 can be made of porous cellulose acetate, and its functions include preventing tobacco dust and tar leakage, slowing aerosol condensation, and improving the aesthetics of the cartridge.

[0057] Please see Figure 4a , Figure 4a yes Figure 3 A schematic diagram of the structure viewed obliquely from the BB end face, as shown below. Figure 4aAs shown, 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 and has magnetic properties. With this overall twisting, on the one hand, the slender wire 302 is less likely to fall off during processing; on the other hand, the gaps 304 are no longer straight but spiral-shaped, extending the length of the airflow path (specifically, it can be similar to the structure in Embodiment 1, where the spiral twist and gap adjustment can correspond to torque control (which may be slightly different from Embodiment 1)), enhancing the effect of heat convection heat transfer and contributing to the reduction of aerosol temperature.

[0058] The metal wire 302b is magnetic. When used in conjunction with the e-cigarette cartridge and the electromagnetic device, it acts as a sensor, coupling with the high-frequency alternating electromagnetic field generated in the device. This causes it to rapidly increase in temperature through eddy current heating, which in turn heats the adjacent aerosol matrix 303. Figure 4a (Not shown in the image). Therefore, the cigarette cartridge in this embodiment is a magnetic cigarette cartridge, and its heating element (sensor) 302b is discretely distributed in the smoke-generating body 3, which has the advantages of being easy to cut during processing and uniform heating and carbonization during operation.

[0059] like Figure 4a and Figure 4b As shown, a single fiber yarn 302a constitutes a single thread containing an aerosol matrix, and a single metal wire 302b constitutes a single receptor strand. Figure 4a The smoke generator shown includes multiple wires 302a and multiple receptor strands 302b, which are formed by a twisted yarn weaving process. Both the wires 302a and the receptor strands 302b extend in a predetermined direction. The multiple receptor strands 302b include a first receptor strand 302b1 and a plurality of second receptor strands 302b2. On the end face of the smoke generator, the first receptor strand 302b1 (i.e., a metal wire 302b located at the center of the smoke generator) is positioned at the center of the smoke generator, and the plurality of second receptor strands 302b2 (i.e., other metal wires 302b surrounding the metal wire 302b located at the center of the smoke generator) are arranged in a ring around the first receptor strand 302b1.

[0060] like Figure 4a As shown, any two adjacent receptor strands 302b are spaced apart, and at least one wire body 302a is provided between two adjacent receptor strands 302b.

[0061] like Figure 4a As shown, each sensor strand 302b is surrounded by a plurality of strands 302a.

[0062] like Figure 4a As shown, a plurality of second receptor strands 302b2 are arranged in a ring array and form at least a first ring column AA and a second ring column BB arranged adjacent to each other. The first ring column AA is located between the second ring column BB and the first receptor strands 302b1.

[0063] like Figure 4b As shown, the first annular column AA and the second annular column BB are staggered in the circumferential direction of the smoke-generating body.

[0064] like Figure 4b As shown, the first ring column AA includes a first sub-receptor strand and a second sub-receptor strand, and the second ring column BB includes a third sub-receptor strand. The first, second, and third sub-receptor strands are arranged adjacent to each other, and the center o1 of the first sub-receptor strand, the center o2 of the second sub-receptor strand, and the center o3 of the third sub-receptor strand are located at the vertices of the equilateral triangle, respectively.

[0065] like Figure 4b As shown, the first receptor strand, the first sub-receptor strand, and the second sub-receptor strand are arranged adjacent to each other, and the center o4 of the first receptor strand, the center o1 of the first sub-receptor strand, and the center o2 of the second sub-receptor strand are located at the vertices of the equilateral triangle.

[0066] like Figure 4a As shown, airflow gaps 304 are formed between adjacent line bodies 302a and between the sensor strand 302b and line body 302a.

[0067] Some applications derived from this embodiment include: 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, which can withstand high temperatures of 1500-3000℃; glass fibers, which have excellent heat resistance and a decomposition temperature exceeding 500℃; para-aramid (PPTA), such as DuPont's Kevlar or Teijin's TWARON, with a limiting oxygen index of around 30 and a decomposition temperature as high as 560℃; meta-aramid (MPIA), such as DuPont's Nomex, with a thermal decomposition temperature of 430℃; and some ceramic fibers, such as Nextel alumina ceramic fibers, which can withstand temperatures up to 1200℃.

[0068] Magnetic metal wire 302b is a physical whole, and its material composition includes one of the following: a single metal, a single alloy, and a composite metal. Examples of single metal wires 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 some cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloys, cobalt-based amorphous alloys, iron-based nanocrystalline alloys, iron-silicon-aluminum alloys, Invar alloys, and constant expansion alloys), and Kovar alloy wires, etc.; composite metal wires contain two or more metal materials, of which at least one is magnetic material. Composite refers to the combination of two or more metal materials through rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0069] In some applications, the basic building block configuration of the slender wire 302 has a variety of easy-to-manufacture combinations, such as Figure 5 As shown, Figure 5 This is a schematic diagram of a combined cross-sectional structure of a slender wire smoke generator according to this application. The smoke generator includes a combination of one or more of the following units: fiber yarn 302a, metal wire 302b, monofilament multi-yarn composite strand 302c (including a metal wire and surrounding fiber yarn, which are intertwined to form a composite strand, serving as a component of the smoke cartridge, and also having surface unevenness that facilitates airflow transmission and cooling, wrapping the sensor metal wire, which on the one hand increases strength, and on the other hand prevents the metal wire from causing a large thermal impact on the shaping layer (usually containing paper) and the external smoke tube if it is wrapped around the outer edge of the aerosol matrix section or even in contact with the shaping layer, resulting in the generation of paper paste taste and glue taste), multifilament multi-yarn composite strand 302d (including multiple metal wires and surrounding fiber yarn), multi-yarn strand 302e (including multiple intertwined fiber yarns forming a fiber strand), and multifilament metal strand 302f (including multiple metal wires intertwined to form a metal strand). 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, a structure that is as symmetrical and uniform as possible, and contains necessary metal wires (if any).

[0070] Different effects produced by different winding methods of fiber filaments and metal wires: (1) Some configurations are designed to improve manufacturability. On the one hand, they increase longitudinal tensile strength because the strength of certain fiber filaments, such as paper yarn, is low, and the strength of certain ultrafine fiber filaments, such as those with an equal diameter of less than 0.03 mm, is low. Therefore, the blending method used in this invention can reduce the breakage phenomenon in spinning or molding, knotting or bundling. On the other hand, it ensures that the transverse cutting difficulty of ropes or bundles is reduced because thick knotting or bundling units and overly concentrated metal wire distribution will significantly increase their transverse cutting force, increase the difficulty in the small-segment cutting process of the smoke body and accelerate the wear of the tool. Therefore, in this invention, the constituent units of the smoke body are configured with a smaller equal diameter, a narrower equal diameter distribution range, and a finer and more discrete metal wire to achieve this purpose. (2) Some configurations are designed to improve the stability of the smoke-generating body structure. Various sizes and blending methods are used to make the physical arrangement inside the smoke-generating body more uniform and the roundness of its outer perimeter better. This reduces the difficulty of subsequent tobacco cartridge splicing and improves the aesthetics of the tobacco cartridge. Especially during the rope winding or bundle shaping process, various different units with equal diameters and appropriate differences are required to make the rope or bundle fuller and the internal space accommodate more fiber filaments and metal wires, making the structure more stable during processing and ensuring the consistency of shape and gap ratio. (3) Some configurations are designed to build a stable and uniform airway. Various blending methods are used to obtain the loosest possible structure and to build the gaps between units that are distributed as evenly as possible. This design, along with the loose internal structure of the fiber filaments and metal wires themselves, makes the smoke-generating body have a small suction resistance. At the same time, when heated, the physical deformation trend of the internal units of the smoke-generating body reaches a synergistic effect, thereby keeping the airway stable and ultimately providing users with a high-quality user experience. (4) Some configurations are designed to achieve more uniform heating and final carbonization effect. In particular, the metal wires that function as heating elements are refined and evenly distributed, which makes the aerosol matrix more uniformly heated, the smoke output speed faster, the smoke volume fuller, and carbonization more uniformly achieved, improving the utilization rate of effective ingredients and reducing the phenomenon of excessive carbonization caused by local overheating, resulting in scorching or even the release of harmful substances. (5) Some configurations are designed to reduce the thermal impact on the shaping layer of the smoke-generating body and the outer paper tube of the cartridge. Therefore, in some applications, the heating element metal wires are first wrapped with other fiber filaments and then used as bundles or knotted units. This can reduce the thermal impact on the shaping layer and the outer paper tube of the cartridge.

[0071] Example 3 This embodiment illustrates a structural configuration of a smoke generator 3, characterized in that: one of the basic constituent units 302a of the slender wire 302 is a non-metallic molded fine wire, and several loops of additional linear material 305 are wound around the periphery of the wire bundle. Please refer to [link to relevant documentation]. Figure 6 , Figure 6 This is a schematic diagram of another embodiment of the smoke-generating body of this application. The main constituent substrate of the non-metallic molded fine wire 302a is tobacco plant material, a fogging agent, flavoring, high-temperature resistant silicone, an adhesive, a thickener, and a flame retardant. It is prepared into a crumbly tobacco rod through extrusion. The first three components constitute the aerosol matrix 303 (not shown in the figure), meaning the fine wire 302a is fused to it during molding, eliminating the need for subsequent deposition processes. The additional material 305 is paper yarn fiber strands with an equal diameter of 0.3 mm, containing clove flavoring. This serves two purposes: firstly, it provides bundling and shaping, eliminating the need for film or paper-based shaping layers 301 as in Examples 1 and 2; secondly, it adds flavor to achieve a distinctive taste. Furthermore, this structure allows for more airflow gaps 304 on the outer surface of the smoke-generating body 3, resulting in a relatively low outer surface temperature and minimal thermal impact on the external smoke tube 4 (not shown in the figure).

[0072] In some applications, the auxiliary material 305 takes the form of a strip, sheet, mesh, block, tube, or sphere, and may be made of the same or different material as the substrate of the elongated wire 302a. When using a non-metallic molded tobacco rod configuration, to create more gaps 304 to reduce draw resistance, the non-metallic molded tobacco rod 302a and / or the wire 302b can be fabricated as a mesoporous structure, i.e., containing 1-9 through holes 3020 internally, with a cross-section as shown in the figure. Figure 7a and 7b As shown. Figure 7a This is a schematic diagram of a cross-section of a hollow structure of a non-metallic molded fine wire or metal wire. Figure 7b This is a schematic diagram of the cross-section of another type of non-metallic molded fine wire or metal wire hollow structure.

[0073] The tobacco cartridge containing a smoke-generating body with a parallel wire bundle structure disclosed in this application embodiment is suitable for heated non-combustible smoking applications. The tobacco cartridge includes a filter, a cooling component, and a smoke-generating body. The smoke-generating body has a parallel wire bundle structure, containing multiple strands of thin, elongated wires that are not intertwined and arranged in parallel. The basic constituent units of the thin, elongated wires include one or more types of non-metallic textile fiber yarns, non-metallic molded fine wires, and metal wires. This invention designs the unit morphology of the aerosol matrix carrier as textile-formed fiber yarns or molded fine wires, constructing a smoke-generating body with high porosity. It possesses advantages such as simple tobacco stick manufacturing process, resistance to breakage, ease of cutting, and low draw resistance.

[0074] This application also proposes a tobacco cartridge containing a rope-like magnetic smoke generator and a method for manufacturing the same. The basic structural unit of the rope consists of multiple magnetic metal strands and multiple loose strands made of woven and twisted fibers, referred to here as base strands. Each base strand is a single thread. This structural configuration allows the aerosol matrix to have better stability and delivery efficiency, providing a smoother inhalation experience, reducing throat irritation, and improving the bioavailability of nicotine. For detailed structure, please refer to the following description.

[0075] Example 4 Please see Figure 8 , Figure 8 This 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 4. The lengths of the filter tip 1, cooling component 2, smoke-generating body 3, and bottom plug 4 are 12mm, 13mm, 14mm, and 5mm, respectively. This tobacco cartridge uses a quaternary composite method, where four cylindrical units are arranged coaxially and bonded together with cigarette paper. The cartridge is prepared by twisting, bonding, and cutting. The cigarette paper, after being wound and bonded in parallel, forms an outer tube 5 with an outer diameter of 7.2mm and a wall thickness of 0.1mm, which is made of cigarette paper. The outer diameter of the smoke generator 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, rolled and bonded together. It is used to fix the internal structure to prevent loosening during processing and to ensure that the sides of the magnetic smoke generator have the necessary roundness, which is beneficial to the good shape of the cigarette cartridge after twisting and forming. Its interior has a small rope-like structure. The small rope segment has a loose structure, including multiple strands of receptor wires 302b and multiple strands of carrier wires 302a that are intertwined and woven together, as well as an aerosol matrix 303 dispersed in the small rope segment.

[0076] It should be noted that in some other embodiments, the shaping layer 301 may not be provided. The overall shaping of the rope 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 at least one strand together with each other.

[0077] 1. External binding and shaping: The smoke generator is bound around its perimeter with single or multiple strands of thread to achieve shaping. Alternatively, in other embodiments, single or multiple strands of thread are inserted into each rope inside the smoke generator for binding, so that the thread used for binding is not exposed, or binding is achieved through an interlacing structure in which part of the same thread is inserted into the rope and part is exposed outside the rope, such as by sewing or threading, to achieve shaping.

[0078] 2. Adhesive Application for Shaping: Adhesive is applied to at least the surface of the yarn before or after weaving through spraying, soaking, or coating. This allows the yarns to bond upon contact, thus shaping the woven smoke generator. Bonding can be done at either end of the smoke generator, leaving the middle section with a loose structure. Alternatively, the entire length of the smoke generator can be bonded while maintaining effective porosity and suction resistance. The adhesive hardens after drying, further aiding in the shaping of the yarn and providing support for the smoke generator.

[0079] 3. Shaping by the yarn itself: At least one yarn is pulled out from each of the adjacent ropes in the smoke-generating body and intertwined with each other, so that at least some of the yarns between the adjacent ropes are partially intertwined, thereby limiting the position of the adjacent ropes. This process is repeated to achieve overall shaping, which can be done by hand or by textile technology.

[0080] It should be noted that in some embodiments, the sensor strand 302b may not be provided, meaning the cartridge is a non-electromagnetic cartridge, but a conventional heating type. Specifically, it may be a structure formed by intertwining and braiding multiple base strands 302a. 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 302b and multiple base strands 302a as an example for illustration.

[0081] In this embodiment, the knotting unit is configured as follows: the receptor strand 302b is a single metal wire, i.e., a monofilament structure; the base strand 302a is a fiber strand made of 20 fiber yarns twisted together, i.e., a multi-yarn structure. The receptor strand 302b is made of iron-nickel-cobalt Kovar alloy 4J29 round wire, which has strong magnetism, and its quantity is 10 strands, with an equal cross-sectional diameter of 0.2mm; the base strand 302a is mainly made of poly(m-phenylene isophthalamide) fiber yarn, which can withstand high temperatures of 400℃, and its quantity is 20 strands. Figure 8 The fine particles shown are a schematic diagram of the deposition location of the aerosol matrix 303 after drying, namely, they exist in the gaps of the short rope segments, inside the substrate strands 302a, and in their own pores.

[0082] Based on this embodiment one, other application scenarios and design parameters are derived as follows: 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.

[0083] In other applications, the wrapping and shaping layer material 301 possesses certain mechanical strength and excellent high-temperature stability. Besides various plant fiber-based ordinary paper and cigarette paper, it can also be made of inorganic fiber paper such as ceramic paper or glassine paper, and various films such as polytetrafluoroethylene film and aluminum foil. To achieve better adhesion and ease of cutting, the present invention recognizes a suitable thickness between 0.01 and 0.04 mm.

[0084] In other applications, to facilitate cutting the receptor strands 302b and achieve a more uniform distribution within the magnetic smoke generator 3, more and finer metal wires can be used in the knot, such as 50 equal strands of ultra-fine magnetic metal wires 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 302b in the cartridge to be between 2 and 100 strands, with the diameter of a single metal wire set between 0.01 and 1 mm.

[0085] When the receptor strand 302b is configured as a single metal wire, the carrier strand 302a can be configured as fiber yarn, fiber strand, or fiber strand wrapped around a single metal wire. During rope knotting, these feeding units can be combined in various ways to program ropes with different structures. Some cross-sectional diagrams of these combinations are shown below. Figure 9-11 As shown, the aerosol matrix 303 is not shown. In Figure 9 middle( Figure 9 (This is a schematic diagram of a single filament and single yarn knot structure). The knot unit consists of metal wire and fiber yarn, i.e., a single filament and single yarn pattern. Figure 10 middle( Figure 10 (This is a schematic diagram of a monofilament and multi-ply knotted rope structure). The knotted rope unit consists of metal wire and fiber strands, i.e., a monofilament and multi-ply pattern, where the fiber strands are woven from multiple fiber yarns. Figure 11 middle( Figure 11 (This is a schematic diagram of a single-core composite strand and a single-core composite strand knotting structure). The knotting unit is a single-metal core composite strand woven from a single metal wire and multiple fiber yarns, i.e., a single-core composite strand and a single-core composite strand pattern.

[0086] In addition, based on Figure 10 The structure can also simultaneously incorporate fiber yarns. Based on... Figure 11 The structure can also include fiber yarns and / or fiber strands. In addition, those skilled in the art can design the arrangement and combination of strands according to parameters such as flue gas flow, heating efficiency, and target customer needs. These will not be listed and described in detail here.

[0087] exist Figure 9-11 In the described configuration, the metal strands are all single metal wires, that is, a physical whole, and their material composition is one of elemental metal, single alloy, and composite metal.

[0088] In some configurations, the metal wires in the rope are made of the same material and are magnetic. Examples of single-element metal wires 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 alloys, cobalt-based amorphous alloys, iron-based nanocrystalline alloys, iron-silicon-aluminum alloys, Invar alloys, constant expansion alloys), and Kovar alloy wires, etc.; composite metal wires contain two or more metal materials, including at least one magnetic material, and composite refers to being combined by means of rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0089] In other configurations, the rope contains metal wires of different materials, at least one of which is magnetic. A primary function of the magnetic metal wires contained in the sensor strands 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.

[0090] like Figure 9 and Figure 11 As shown, a substrate strand 302a constitutes a single wire containing an aerosol matrix, and a metal wire 302b constitutes a receptor strand; that is... Figure 9 and Figure 11 The smoke generator shown includes multiple wires 302a and multiple receptor strands 302b, which are formed together with the multiple wires 302a through a rope-tying weaving process. Both the wires 302a and the receptor strands 302b extend in a predetermined direction. The multiple receptor strands 302b include a first receptor strand 302b1 and a plurality of second receptor strands 302b2. On the end face of the smoke generator, the first receptor strand 302b1 (i.e., a metal wire 302b located at the center of the smoke generator) is positioned at the center of the smoke generator, and the plurality of second receptor strands 302b2 (i.e., other metal wires 302b surrounding the metal wire 302b located at the center of the smoke generator) are arranged in a ring around the first receptor strand 302b1.

[0091] like Figures 9 to 11 As shown, any two adjacent receptor strands 302b are spaced apart, and at least one wire body 302a is provided between two adjacent receptor strands 302b.

[0092] like Figure 9 and Figure 11 As shown, each sensor strand 302b is surrounded by a plurality of strands 302a.

[0093] like Figure 9 and Figure 11 As shown, the complex number of second receptor strands 302b2 are distributed in a ring array and form the first ring column AA.

[0094] like Figure 9 and Figure 11 As shown, airflow gaps 304 are formed between adjacent line bodies 302a and between the sensor strand 302b and line body 302a.

[0095] like Figure 11 As shown, the smoke generator includes multiple strand structure units, each of which consists of several strands 302a and at least one receptor strand 302b.

[0096] like Figure 10 As shown, a substrate strand 302a constitutes a single wire containing an aerosol matrix, and a metal wire 302b constitutes a receptor strand; that is... Figure 10 The smoke generator shown includes multiple yarns 302a and multiple receptor strands 302b, which are woven together with the yarns 302a. Both the yarns 302a and the receptor strands 302b extend along a predetermined direction; on the end face of the smoke generator, the multiple receptor strands 302b are arranged in a ring around the axis of the smoke generator.

[0097] like Figure 10 As shown, the base yarn 302a is formed by multiple fiber yarns.

[0098] like Figure 10 As shown, any two adjacent receptor strands 302b are spaced apart, and at least one wire body 302a is provided between two adjacent receptor strands 302b.

[0099] like Figure 10 As shown, multiple receptor strands 302b are arranged in a ring array and form at least a first ring column AA and a second ring column BB arranged adjacent to each other. The first ring column AA is located between the second ring column BB and the axis of the smoke generator.

[0100] like Figure 10 As shown, the first annular column AA and the second annular column BB are staggered in the circumferential direction of the smoke-generating body.

[0101] like Figure 10As shown, the first annular column AA includes a first receptor strand 302b1 and a second receptor strand 302b2, and the second annular column BB includes a third receptor strand 302b3. The first receptor strand 302b1, the second receptor strand 302b2 and the third receptor strand 302b3 are arranged adjacent to each other, and the center of the first receptor strand 302b1, the center of the second receptor strand 302b2 and the center of the third receptor strand 302b3 are respectively located at the vertices of an equilateral triangle.

[0102] like Figure 10 As shown, each receptor strand 302b in the second annular column BB is partially surrounded by a plurality of strands 302a; each receptor strand 302b in the first annular column AA is surrounded by a plurality of strands 302a.

[0103] like Figure 10 As shown, airflow gaps 304 are formed between adjacent line bodies 302a and between the sensor strand 302b and line body 302a.

[0104] Example 5 Please see Figure 12 , Figure 12 This is a schematic diagram of a double-wire structure for a receptor strand, which differs from Embodiment 4 in the material and structure of the receptor strand 302b. In this embodiment, the receptor strand 302b in the magnetic smoke generator has a double-wire structure, consisting of two magnetic metal wires A and B made of different materials twisted together, as shown below. Figure 12 As shown. 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 receptor strands 302b in this structure in the cartridge is 8. The material, structure (multi-yarn) and number of strands, knotting method, bottom plug 4, quaternary composite structure, and other dimensions of the base strands 302a can be the same as in Example 4.

[0105] Based on this second embodiment, other application scenarios and design parameters are derived as follows: When a single-strand sensor wire 302b contains multiple metal wires, it can be called a multi-wire structure, such as a composite metal wire made of multiple metals wound together. There are three basic combinations of composite metal wires: magnetic metal wires wound with magnetic metal wires, magnetic metal wires wound with non-magnetic metal wires, and non-magnetic metal wires wound with non-magnetic metal wires. Regardless of the combination, at least two magnetic metal wires are required in the magnetic smoke generator. The magnetic metal wires can be made of the aforementioned magnetic materials. The non-magnetic metal wires include copper (Cu) wire, silver (Ag) wire, aluminum (Al) wire, titanium (Ti) wire, chromium (Cr) wire, and various highly ductile alloys (such as nickel-chromium alloys, silver-copper alloys, and aluminum alloys), all of which can withstand temperatures up to 500°C.

[0106] When the receptor strand 302b is configured as a composite metal strand, the base strand 302a can be configured as a fiber yarn, a fiber strand, or a fiber strand wrapped with a composite metal strand. During rope knotting, these feeding units can be combined in various ways to create ropes with different structures. Some cross-sectional diagrams of these combinations are shown below. Figure 13-15 (Aerosol matrix 303 is not shown), corresponding to the above Figure 9-11 .

[0107] exist Figure 13 middle( Figure 13 (This is a schematic diagram of a multi-ply and multi-yarn knotted rope structure). The knotted rope unit consists of composite metal strands and fiber yarns, i.e., a multi-ply and single-yarn pattern. Figure 14 middle( Figure 14 (This is a schematic diagram of a single-core composite strand and a single-core composite strand knotting structure). The knotting unit consists of composite metal strands and fiber strands, i.e., multi-filament strands and multi-yarn strand patterns. Figure 15 middle( Figure 15 This is a schematic diagram of a multi-core composite strand and a multi-core composite strand knotting structure. The knotting unit is a multi-metal core composite strand woven from composite metal strands and multiple fiber yarns, i.e., a multi-core composite strand and multi-core composite strand pattern. Specifically, Figure 13 The illustrated embodiments and Figure 9 The only difference in the embodiment shown is that the receptor strand 302b is formed by multiple metal wires. Figure 14 The illustrated embodiments and Figure 10 The only difference in the embodiment shown is that the receptor strand 302b is formed by multiple metal wires. Figure 15 The illustrated embodiments and Figure 11 The only difference in the embodiment shown is that the receptor strand 302b is formed by multiple metal wires.

[0108] based on Figure 14 The structure can also simultaneously incorporate fiber yarns. Based on... Figure 15 The structure can also incorporate fiber yarns and / or fiber strands. 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; these will not be listed or detailed here.

[0109] Example 6 The e-cigarette cartridge in this third embodiment has a ternary structure. Please refer to [link / reference]. Figure 16 , Figure 16This is a schematic diagram of the structure of a ternary composite cigarette cartridge according to this application. In this embodiment, the total length of the cigarette cartridge is 43mm. Internally, it includes a filter tip 1, a cooling component 2, and a magnetic smoke generator 3. The lengths of the filter tip 1, cooling component 2, and magnetic smoke generator 3 are 13mm, 14mm, and 16mm, respectively. Externally, it is made of cigarette paper 5, which is rolled and bonded in parallel. The shaping layer 301 is an aluminum foil with a thickness of 0.007mm. The receptor strand 302b consists of 8 strands, each a monofilament composite metal wire, made of 0.25mm diameter iron-nickel alloy 1J50 round wire with a nickel layer approximately 0.003mm thick electroplated on the outer surface. The base strand 302a consists of 84 fiber strands, each woven from 6 fiber yarns. The basic material of the fiber yarn is modified paper yarn base fiber that can withstand 350℃. Aerosol matrix 303 (in...) Figure 16 (Not shown) Located in the gap inside the magnetic smoke generator 3 and inside the fiber yarn itself.

[0110] like Figure 16 As shown, a substrate strand 302a constitutes a single wire containing an aerosol matrix, and a metal wire 302b constitutes a receptor strand; that is... Figure 16 The smoke generator shown includes multiple yarns 302a and multiple receptor strands 302b, which are woven together with the yarns 302a. Both the yarns 302a and the receptor strands 302b extend along a predetermined direction; on the end face of the smoke generator, the multiple receptor strands 302b are arranged in a ring around the axis of the smoke generator.

[0111] like Figure 16 As shown, any two adjacent receptor strands 302b are spaced apart, and at least one wire body 302a is provided between two adjacent receptor strands 302b.

[0112] like Figure 16 As shown, each sensor strand 302b is surrounded by a plurality of strands 302a.

[0113] like Figure 16 As shown, multiple receptor strands 302b are arranged in a ring array and form the first ring column AA.

[0114] Based on this embodiment three, other application scenarios and design parameters are derived as follows: In some designs, the fiber yarn is made of various natural or chemical fibers that do not contain nicotine-like substances. Suitable natural fibers include plant fibers 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 phloem of some plants, such as flax, ramie, jute, and bamboo fiber. 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 yarns 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 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. 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 allows for easy cutting and a high porosity. Higher porosity allows for the retention and locking of more aerosol matrix, while providing lower draw resistance in smoking applications. Given that the diameter of the magnetic smoke generator is in the range of 4-10 mm, and considering the significant differences in the equivalent diameter of the fiber yarns, the number of carrier strands is defined as between 10 and 2,000 in this invention.

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

[0118] Please see Figure 17 , Figure 17 This is a schematic flowchart of an embodiment of the preparation method of the tobacco cartridge of this application, wherein the preparation method includes, but is not limited to, the following steps.

[0119] Step S11, Receptor strand 302b forming: A highly ductile metal is extruded and drawn (also called wire drawing) under the assistance of a fixture by applying a certain temperature and mechanical force, or cut into wires (also called slitting), or further wound together multiple metal wires to form a metal strand. Here, receptor strand 302b is defined as a single metal wire or a metal strand formed by winding multiple metal wires. It is worth noting that at least one type of magnetic metal wire is present in the prepared metal wire, which acts as a magnetic induction heating element in the subsequent cigarette cartridge application. Furthermore, to facilitate forming and cutting, the metal wire or metal strand is preferably annealed after forming to soften it. The metal wire is preferably circular, but when slitting and cutting thin strips, the metal wire is a ribbon with a rectangular cross-section; preferably, the aspect ratio of the rectangle is less than 10.

[0120] Step S12, Base Ply 302a Formation: Fibers that can withstand high temperatures of 250℃ are spun into fiber yarns, or multiple fiber yarns are further spun into fiber ply yarns. Here, base ply 302a is defined as a single fiber yarn, or a fiber ply yarn spun from multiple fiber yarns. The spinning process here mainly refers to the process of forming suitable high-temperature resistant fibers into strips and drawing and twisting them into yarns, which is divided into two main stages: strip formation and yarn formation. Strip formation process includes: first, pre-treating the fiber raw materials by degumming, washing, carbonization, etc., and then loosening them into single strips of a certain length. Yarn formation methods include: (1) drawing and stretching several fiber strips, or combing them while stretching, so that they are straight and parallel, and then twisting them into yarns; (2) dividing the combed fiber web into narrow strips, and then twisting them into yarns; (3) twisting and twisting the fiber strips while stretching them into yarns, also known as the twisting method. It is worth noting that the main function of the carrier yarn in this invention is to carry and lock in the aerosol matrix 303. Therefore, its configuration focuses on a loose structure and low transverse cutting force. So preferably, the fiber yarn or fiber strand uses low-strength fiber raw materials and is constructed with high porosity and a loose structure.

[0121] Step S13, Rope weaving: The receptor strands 302b and the base strands 302a are woven and twisted into a long rope using various combinations. Any suitable combination can be used to weave a circular long rope, such as the basic structure described in the three embodiments above. Weaving with multiple thinner receptor strands 302b and multiple thinner base strands 302a results in a rope with higher roundness and a more balanced surface, and the gaps are more uniform, which is beneficial for a more uniform distribution of the aerosol matrix 303 in subsequent molding, as well as the generation of more subdivided and symmetrically distributed airflow channels. Similarly, the finally woven rope needs to have a relatively loose structure. Its maximum outer diameter is between 4-10 mm, preferably between 3.4-9.4 mm.

[0122] Step S14, Base Addition: The aerosol matrix 303 is deposited into the long rope through methods such as soaking, spraying, brushing, rolling, and atomization, and then dried to form a base-loaded long rope. The base addition process can be added before rope knotting, i.e., added to the fiber yarn or fiber strands; or it can be added after rope knotting, i.e., added to the woven long rope. This invention uses liquid aerosol matrix 303, which is deposited on the surface and in the gaps within the rope, and penetrates into the fiber yarn, through full contact with the rope, forming a base-loaded long rope after drying. The aerosol matrix 303 ultimately exists on its surface or embedded in the form of ultrafine solid particles.

[0123] Step S15, Shaping: The outer perimeter of the base long rope is wrapped and bonded with a film or cigarette paper, i.e., shaping layer 301, and then cut into 3 small segments of magnetic smoke generator. The shaping layer 301 is wrapped by flat roll bonding or oblique roll bonding. The purpose is to obtain a high side roundness and ensure the consistency of the outer diameter of the magnetic smoke generator. It also shapes the rope during subsequent cutting and lamination to prevent the internal rope structure from becoming scattered. In addition, it can also prevent leakage of aerosol matrix 303 and leakage of liquid components into the external smoke tube 5. Therefore, it is preferable to use modified paper or aluminum foil with a certain degree of oil resistance, which will have excellent results. Here, the average wall thickness of the shaping layer 301 is set to be less than 0.05 mm, and thinner ordinary paper, heat-modified paper, or high-temperature resistant film is used.

[0124] Step S16, Lamination: The filter tip, cooling component, and three small sections of the magnetic smoke generator are joined together from the outside using cigarette paper to complete the online continuous lamination process, forming a cigarette stick, which is then cut into cigarette cartridges. The lamination process is an improvement on the traditional cigarette lamination process, including wheel-type lamination or linear lamination, wherein the cigarette paper is wound in parallel and bonded with glue.

[0125] This application proposes a tobacco cartridge with a rope-like magnetic smoke generator and its manufacturing method. The tobacco cartridge includes a filter, a cooling component, and a magnetic smoke generator. The magnetic smoke generator has a rope-like internal structure containing multiple interwoven receptor strands and carrier strands, as well as an aerosol matrix, including at least two magnetic metal wires. The manufacturing process of the tobacco cartridge includes receptor metal strand forming, carrier strand forming, rope knotting, base addition, shaping, and composite. This invention employs spinning, drawing, and rope knotting processes to prepare the aerosol matrix carrier and configure the magnetic induction heating element, constructing a magnetic smoke generator with a uniformly distributed heating element. The tobacco cartridge has high production efficiency, a simple manufacturing process, and is easy to cut. During smoking, the aerosol matrix carbonizes uniformly, resulting in low draw resistance.

[0126] This application also provides a precipitated paper yarn smoke generator and its manufacturing method.

[0127] When inhaling heated tobacco products, the key chemical ingested by the user is nicotine. Simultaneously, the production of a large amount of vapor and diverse flavors provides a superior user experience, with the vapor generator being a crucial component. Natural plant fibers, after physical washing, beating, quenching, twisting, and air-drying during the papermaking process, form a stable and unique porous structure. This characteristic lays the foundation for paper fibers to be suitable as a vapor generator substrate. In this embodiment, an aerosol matrix liquid mixture is uniformly deposited onto a rope-like vapor generator substrate woven from threads and then dried. The basic structural unit of the rope consists of multiple loosely stranded threads woven and twisted from fibers, defined here as base strands. This structural configuration allows the aerosol matrix in the vapor generator to have better stability and delivery efficiency when assembled into a tobacco product for inhalation, providing a smoother inhalation experience, reducing throat irritation, and improving the bioavailability of nicotine.

[0128] Example 7 Please see Figure 18 , Figure 18 This is a schematic diagram of a rope-shaped, deposited paper yarn smoke generator according to this application. In this embodiment, the smoke generator has a 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 1 and seven outer outer layer strands 2, with an aerosol matrix 303 uniformly deposited between them. The core rope 1 has an equal diameter of 3 mm, and six inner core strands 102 are wound around an inner core strand 101 at a certain inclination and direction. The outer layer strands 2 have an equal diameter of 2 mm, and six outer core strands 202 are wound around an outer core strand 201 at a certain inclination and in the opposite direction. Here, the core rope 1 and the outer layer strands 2 have the same structure, material, and size, and the inner core strands (101, 201) and the outer strands (102, 202) also have the same configuration, i.e., they are all paper yarn.

[0129] In some applications, multiple layers of outer strands are twisted together. In this case, the equal diameter of the strands is finer, and various sizes of paper yarn and braided structures are used in optimized combinations. The aim is to increase porosity, thereby enabling it to have a greater aerosol matrix carrying capacity while ensuring low suction resistance. A cross-sectional schematic diagram of one such twisted rope configuration is shown below. Figure 19 As shown, Figure 19 This is a schematic diagram of a structure with a multi-layered strand configuration on the outer side (where the aerosol matrix 303 is not shown). Its basic structure is as follows: on the outside of the central core rope 1, which is composed of twenty-three paper yarns, there are nine outer layer strands 2, which are composed of 15 paper yarns. In the space between the core rope 1 and the outer layer strands 2, there are nine middle layer strands 4, which are composed of seven paper yarns. This rope configuration is a 9x15 + [9x7 + 1x23] structure.

[0130] Example 8 like Figure 20 As shown, Figure 20 This is a schematic diagram of a rope-like, deposited paper yarn smoke generator. The rope has an equal diameter of 6.6 mm and a length of 12 mm. For ease of illustration, the structure is partially expanded and extended in the diagram. It consists of an inner core rope 1 and seven outer outer layer strands 2 twisted together. An aerosol matrix 303 is uniformly deposited between them. An outer shaping layer 5 (only a portion is shown) wraps the rope into a slender column shape. The core rope 1 has an equal diameter of 3 mm and contains a magnetic metal wire inner core 101 with a diameter of 0.25 mm, made of 4J29 iron-nickel-based alloy. It also contains six inner strands 102, which are wound at a certain angle and direction, with an equal diameter of 2 mm. The outer layer strands 2 are configured identically to the core rope 1; that is, in the basic unit, the inner core wires (101, 201) are magnetic metal wires, and the strands (102, 202) are paper yarn.

[0131] This type of deposited paper yarn smoke generator 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 (101, 201) here function as sensors, 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) magnetic metal wires (101, 201) discretely distributed at the inner center of each strand of the smoke generator. 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 described as a multi-core dispersed heating mode within the rope.

[0132] In other applications, the magnetic receptors are configured in various ways within the rope, such as a magnetic wire wound around a submerged paper yarn smoke generator in the middle layer. Figure 21 As shown, Figure 21 This is a schematic diagram of a smoke generator with a magnetic metal wire wound around an intermediate layer of a settled paper yarn (where the aerosol matrix 303 is not shown). Its basic structure consists of: a core rope 1 located at the inner center, a first intermediate layer strand 4, a second intermediate layer strand 6, a magnetic metal wire 7 wound spirally around the outside of the second intermediate layer strand 6, and an outermost outer layer strand 2 (not shown in the diagram). Here, the magnetic metal wire 7 is made of 4J29 iron-nickel-based alloy and is located inside the rope. The diameter of the solenoid it forms is approximately three-quarters the diameter of the smoke generator rope. This spatial configuration of the heating element can be called an in-rope circumferential heating mode.

[0133] The material composition of magnetic metal wires (101, 201, 7) can be one of the following: a single metal, a single alloy, or a composite metal. Examples of single metal wires include iron wire, nickel wire, and cobalt wire; examples of single alloy wires include various magnetic stainless steels (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 wires contain two or more metal materials, of which at least one is magnetic material. Composite refers to the combination of two or more metal materials through rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0134] To verify the magnetic behavior of the magnetic sensor during the temperature rise from room temperature to stable operating temperature in a smoking application, this invention tested the magnetization intensity M as a function of temperature (MT curve) and the magnetization intensity change rate dM / dT as a function of temperature T for the iron-nickel based alloy 4J29 as a magnetic sensor in the temperature range of 20-573℃. Figure 22 As shown. Figure 22 This is a schematic diagram of the magnetization temperature curve of a magnetic sensor made of iron-nickel alloy 4J29. The curve shows that before 400℃, the sensor possesses high and stable permeability, with a magnetization as high as 50 emu / g. After 400℃, its permeability decreases rapidly, reaching zero at 450℃. Based on the peak and valley of dM / dT-T, its Curie temperature Tc can be determined to be 450℃. This magnetic behavior has multiple values.

[0135] (1) Ensure strong and stable coupling: The reasonable carbonization temperature of common aerosol matrix is ​​around 350℃, while the temperature drop caused by taking a puff is usually in the range of 10-50℃. This magnetic sensor has a high and stable magnetic permeability before 400℃. Therefore, during the normal operation of the aerosol generation system (sensor + cartridge + device), it can always generate a strong and stable coupling with the high-frequency alternating electromagnetic field generated by the device.

[0136] (2) As a reference for setting the stable operating temperature of the aerosol generation system: During the initial preheating stage of the system, the heating is continued, so that the sensor continues to rise to more than 400°C, for example, 410°C. The permeability of the sensor shows an obvious inflection point at 400°C. The system finds the current inflection point Im corresponding to the temperature inflection point by the obvious change in the power supply current Idc in the circuit before and after the inflection point. Thus, the inflection point temperature Tm can be determined to be 400°C. If the expected stable operating temperature Tw is 350°C, then the stable operating current Iw corresponding to 350°C is deduced backward from this current inflection point, so as to set the stable operating temperature Tw to 350°C.

[0137] (3) Non-contact sensorless temperature measurement: Based on the above description, the sensor temperature corresponding to each working current Idc can be calibrated based on this magnetic change behavior and experimental data to achieve real-time temperature measurement, and there is no need to use physical sensors in the system.

[0138] (4) Exclusivity of cartridges and devices: As an ecosystem, when cartridges and devices are configured to match each other based on the parameters of the magnetic sensor, multiple target thresholds can be set to ensure that the combination of cartridges (including specific sensor configurations) and devices (including specific control configurations) is exclusive. That is, a certain type of cartridge can only work normally in a certain type of device, and similarly, a certain type of device can only use a certain type of cartridge. This can achieve the purpose of anti-counterfeiting identification and prevent safety accidents caused by the use of incorrect cartridges or incorrect devices.

[0139] (5) Safety Protection: Two modes can be set, including active protection, passive protection, or a combination of both. Active protection, for example, when the sensor temperature abnormally exceeds 410°C, the sensor magnetism decreases significantly until it loses its magnetism. Correspondingly, the coupling strength decreases significantly until it loses coupling, that is, the power input is significantly reduced until it reaches the pipe wall. Passive protection, for example, can set the threshold Is of Idc in the specific control configuration of the smoking device, corresponding to the threshold temperature Ts. When the sensor temperature exceeds the threshold temperature Ts, the system reduces or cuts off the power input.

[0140] The smoke generator provided in this application embodiment is designed with a structure of multiple lines that are in contact with each other and extend in a preset direction. This structure can form a stable and predictable airflow gap between adjacent lines, thereby stabilizing the smoke flow and improving the suction effect. By utilizing the arrangement of the lines, the porosity of the smoke generator is not only effectively controlled, but also the porosity of the smoke generator is better converted into an effective ventilation channel. That is, each ventilation channel is connected, which makes it easier to finely adjust the suction resistance of the smoke generator.

[0141] Example 9 This application describes a method for manufacturing a precipitated paper yarn smoke generator. Please refer to [link to relevant documentation]. Figure 23 , Figure 23 This is a schematic flowchart of an embodiment of the method for manufacturing the precipitated paper yarn smoke body of this application. The preparation method includes, but is not limited to, the following steps.

[0142] Step S21, Pulping: First, the coniferous pine raw material is cleaned and impurities are removed; then it is cut and crushed; next, it undergoes high-temperature and high-pressure cooking, which is a key step in pulping. Through the high-temperature and high-pressure cooking process, the wood and fibers are broken down and cellulose is released. During this process, chemical agents are added to help separate the cellulose; then, rinsing and dewatering are carried out to remove residual chemical agents and impurities. These pretreatment processes make the plant fibers soft and remove impurities and pigments; finally, mechanical pulping is carried out, using mechanical force to separate the cellulose. When the fibers are subjected to mechanical force in water, they become filamentous and release more hydroxyl groups, forming more contact area and hydrogen bonds between the fibers, thus strengthening the bond between the fibers and giving the subsequent base paper higher physical strength.

[0143] Step S22, Pulp Preparation: The above pulp is prepared by blending, screening, and grinding processes; various papermaking additives are added during this process. The purpose of preparation is to give the pulp the desired properties.

[0144] Step S23, Paper Formation: First, the pulp is filtered and pressed to remove larger impurity particles, and some water is removed through squeezing and dewatering. Then, it is conveyed and evenly coated onto the moving conveyor belt of the paper machine. Next, through steps such as casting, pressing, and drying, the pulp gradually forms a fibrous network structure. At the same time, mechanical pressure is used to squeeze out the water from the pulp, making the fibers more compact. Finally, it is formed into a base paper with an average thickness of approximately 0.035 mm.

[0145] Step S24, spinning: First, the raw paper is cut into narrow strips with a width of 2mm and wound into paper strip coils. Then, it is put on a spinning machine and coated with preservative and wet strength agent solutions. Then, it is spun to form paper yarn. The equal diameter of the paper yarn is about 0.05mm.

[0146] Step S25, knotting: The multiple strands of paper yarn are initially twisted and then re-twisted to form a fine thread. Then, a rope braiding machine is used to interweave and twist them into a thick paper yarn rope with an equivalent diameter of approximately 6.4 mm.

[0147] Step S26, Precipitation: The aerosol matrix is ​​deposited onto the paper yarn rope by immersion and then dried to prepare the precipitated rope. The aerosol matrix is ​​in a liquid state (the basic components are as described in the previous examples and will not be repeated here). The immersion time is 1 hour, and after removal, it is dried at 90°C for 3 hours.

[0148] Step S27, Cutting: Wrap and shape the precipitated base coarse rope film or paper, and then cut it into small segments of precipitated base paper yarn smoke body, with a length of 12mm.

[0149] Please refer to the following: Figures 24 to 27 , Figure 24This is a schematic diagram of the structure of the precipitated paper yarn smoke generator. Figure 25 This is a schematic diagram of the structure of a sensor metal wire (88a) mixed into a precipitated paper yarn smoke generator. Figure 26 This is a schematic diagram of the 100X magnification scanning electron microscope (SEM) image of the precipitated paper yarn smoke generator after immersion in the aerosol matrix. A section was cut off after immersion in the aerosol matrix, and the following is a 100X magnification SEM image of the cut surface (excluding the sensor area). The morphology of individual yarn strands is not visible here. Figure 27 This is a schematic diagram of a 100X magnification scanning electron microscope image of a substrate paper yarn smoke generator (containing a sensor wire (88a)) after being immersed in an aerosol matrix.

[0150] In this example, during the manufacturing process of the smoke-generating body, the aerosol matrix 303 is added to the paper yarn by soaking after the yarn is tied. This method is called back-end matrix addition.

[0151] In addition, aerosol matrix 303 can also be deposited into the base paper and dried after the base paper is formed through various suitable methods, which is called front-end basting; or it can be mixed with papermaking pulp during the pulping process and deposited into non-tobacco plant fibers, which is called mid-end basting.

[0152] Regardless of the order of addition, various suitable addition methods may include deposition such as spraying, brushing, rolling, and atomization. The ultimate goal is to leave the aerosol matrix 303 in the gaps of the loose structure of the paper yarn and adhere it to the surface.

[0153] The basic raw material used in this invention for papermaking is plant fiber, which can be selected from one or more of the following: grasses, bast fibers, or seed fibers. Suitable woods include many types, such as conifers (e.g., larch, red pine, Masson pine, fir, Yunnan pine, and Scots pine) and broadleaf trees (e.g., poplar, birch, and eucalyptus). Grasses can include: reeds, bamboo, awned stalks, wheat straw, rice straw, dragon's beard grass, sorghum stalks, and bagasse. Bast fibers can include: flax, jute, kenaf, sesame, kenaf, sandalwood bark, mulberry bark, and cotton stalk bark. Seed fibers include, for example, cotton, cotton linters, and cotton rags.

[0154] Various additives used in papermaking include a wide range of types, such as sheet bleaching agents, deinking agents, defoamers, rosin gum, filter aids (polyaluminum chloride), cationic starch and amphoteric starch, cationic polyamide resin (PAE), neutral sizing agent (AKD), alkyl ketone dimer, alkenyl succinic anhydride (ASA), polyacrylamide (PAM), polyethylene oxide (PEO), phenolic resin (PR), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), surface sizing agent (PVA), etc.

[0155] In practical applications, the settled paper yarn smoke generator of this invention is used in cigarettes, and is combined with components such as filters, cooling components, bottom plugs, and cigarette paper through processes such as lamination and splicing to prepare a heated tobacco cartridge. When the cartridge is used for smoking, the paper yarn is heated by a nearby heating element. The operating temperature of the heating element is between 300-350℃, which bakes and carbonizes the aerosol matrix 303 in the paper yarn, releasing aerosols for the user to inhale.

[0156] This application discloses a deposited paper yarn smoke generator and its manufacturing method. The smoke generator is used to prepare cigarette cartridges, and its basic structural unit is paper yarn containing an aerosol matrix. The aerosol matrix is ​​deposited into the paper matrix fibers during the papermaking process, spinning process, or after rope making, and then prepared into a smoke generator with a loose rope-like structure through methods such as spinning, weaving, and wrapping. This smoke generator structure and manufacturing method have the advantages of high porosity, long-lasting fragrance retention, and simple production process.

[0157] Currently, there are two modes of electromagnetic heating in the HNB (Heated Tobacco Product) industry. The first is center heating from within the cartridge, where the magnetic heating element is a metal sheet embedded in the axial region of the aerosol matrix section inside the cartridge. This method suffers from drawbacks such as complex embedding processes, difficult cutting, overly concentrated heating element configuration, and limited thermal contact area. The second is circumferential heating from the outside of the cartridge, where the magnetic heating element is a metal tube integrated into the inner wall of the cartridge compartment. This method suffers from drawbacks such as slow heat conduction, inaccurate temperature measurement and control, a tendency to produce a pasty taste, and a blackening of the cartridge's appearance after use.

[0158] To address the aforementioned technical problems, this embodiment proposes a composite metal wire, its manufacturing method, and a cigarette cartridge containing the same.

[0159] It should be noted that this embodiment only schematically shows metal wires composed of two or three metal materials. In some other embodiments, multiple metal materials can be used, such as 2 to 6 metal materials, to form a multi-layer composite structure. The detailed features of this part are within the understanding of those skilled in the art, and will not be listed and described in detail here.

[0160] Example 10 Please refer to the following: Figure 28 and Figure 29 , Figure 28 This is a schematic diagram of a fabrication process for the composite metal wire described in this application. Figure 29 This is a schematic flowchart of an embodiment of the preparation method of the composite metal wire of this application, wherein the preparation method includes, but is not limited to, the following steps.

[0161] Step S31, Surface treatment: Select the first magnetic metal material 1, iron-nickel based glass sealing alloy 4J42 thin strip (0.6mm thick as an example), and the second magnetic metal material 2, stainless steel 410 thick strip (1.8mm thick as an example). Anneal the two strips in a continuous atmosphere annealing furnace at 930℃. Then, grind their surfaces, pickle them to remove oil and foreign matter, and make their surfaces smooth and flat. Finally, dry and rewind them.

[0162] Optionally, in the iron-nickel based alloy of the first magnetic metal material 1 in this embodiment, the weight percentage of nickel is between 35-88 wt%, and the weight percentage of iron is between 12-65 wt%.

[0163] In some other embodiments, the Curie temperature of the first magnetic metal material 1 is between 300-550°C, and the Curie temperature of the second magnetic metal material 2 is between 650-1200°C. The first magnetic metal material 1 is one of elemental nickel, an iron-nickel based alloy, or a neodymium-iron-boron alloy, and the second magnetic metal material 2 is one of elemental iron, elemental cobalt, an iron-chromium-cobalt based alloy, an iron-chromium-aluminum based alloy, or magnetic stainless steel. In the neodymium-iron-boron based alloy, the weight percentage of neodymium is 15-28 wt%, the percentage of iron is 70-80 wt%, and the percentage of boron is 1-8 wt%.

[0164] Step S32, Composite: The thin strip is laminated using a lamination process to form a composite strip with a final thickness of approximately 1.2 mm. The two materials achieve physical contact, meaning deformation and cracking occur at the contact surfaces, resulting in mechanical interlocking. Annealing is then performed (specifically, diffusion annealing at 650-950℃ in a protective atmosphere or vacuum environment) to promote interdiffusion between iron, nickel, cobalt, chromium, and silicon atoms, further enhancing the bonding strength. Alternatively, in some other embodiments, one or more processes such as rolling, spraying, cladding, welding, electroplating, electroless plating, or coating can be used to composite 2-6 metal materials together to form a composite strip.

[0165] Step S33, Slitting: Cut the above composite strip into composite wire blanks with a width of 1.5mm, i.e., a cross-section of 1.5mm x 1.2mm. Generally, the length-to-width ratio is no greater than 3.

[0166] It should be noted that the dimensional parameters in this embodiment are only an example. Those skilled in the art can set the dimensional parameters according to their needs, and no specific limitations are made here.

[0167] Step S34, chamfering: Use a cutting tool to trim the composite wire blank to form rounded corners, in order to reduce the risk of breakage during subsequent processing.

[0168] Step S35, drawing: With the assistance of the mold, the composite wire blank is drawn multiple times by mechanical force to prepare a composite metal wire with a roughly circular cross-section and an equal diameter of 0.3 mm. The final product is annealed for 2 hours under vacuum at 800℃ (the temperature range can be 600-900℃) to make it soft, which is convenient for subsequent winding and cutting.

[0169] Please see Figure 30 , Figure 30 yes Figure 28 The diagram shows an enlarged view of the composite metal wire at point A. In this embodiment, the binary composite metal wire is a solid wire with a roughly circular cross-section and a diameter of approximately 0.3 mm. In one embodiment, it can be made by combining and processing a first magnetic metal material 1 (iron-nickel-based glass-sealed alloy 4J42, Curie temperature approximately 360°C) and a second magnetic metal material 2 (stainless steel 410, Curie temperature approximately 700°C). This embodiment only uses these two materials as examples; in some other embodiments, other magnetic materials may be used.

[0170] In this embodiment, the cross-sectional area ratio of the 4J42 portion to the 410 stainless steel portion of the composite metal wire is approximately 1:3. A thin layer (not shown in the figure) with a thickness of less than 0.001 mm, formed by inter-atomic diffusion at the interface, tightly bonds the two components. This composite metal wire is in an annealed soft state, making it easy to deform and cut.

[0171] Example 11 Please refer to the following: Figure 31 and Figure 32 , Figure 31 This is a schematic diagram of another fabrication process for the composite metal wire of this application. Figure 32 This is a schematic flowchart of another embodiment of the preparation method of the composite metal wire of this application, wherein the preparation method includes, but is not limited to, the following steps.

[0172] Step S41, Surface treatment: Mechanically grind and / or chemically treat the surface of the substrate to be laminated to remove oil and foreign matter, and make the surface clean, flat and smooth. In this embodiment, the first magnetic metal material 1 can be selected as nickel, and a thick round bar with a diameter of 10 mm can be used, or as follows: Figure 32 As shown, a plate with a certain thickness is selected, cut into rectangular strips, and then formed into a thin rod with a cross-sectional diameter of about 2mm through multiple wire drawing dies.

[0173] Optionally, the second magnetic metal material 2 can be electrical pure iron DT4. A thick strip with a thickness of 1.6mm is used. The surfaces of the two raw materials are polished, and then pickled to remove oil and foreign matter, making the surface smooth.

[0174] Step S42, rod making (taking the selection of a coarse rod as an example): the first magnetic metal material 1 nickel coarse round rod is pulled out of the die hole of the wire drawing die by the clamp under the action of the drawing force, and the process is repeated many times to produce a small cross-section metal rod. The cross-sectional diameter of the nickel rod is 2mm. Step S43, tube making: The second metal layer magnetic material 2 iron thick strip is rolled and joined by rolling mill rotation and pressing, then welded into a round tube, and then drawn into a hollow iron tube with an inner diameter slightly larger than 2mm. Step S44, Composite: The above-mentioned nickel rod and iron tube are nested together, then drawn, and then annealed to make the nickel rod and iron tube tightly bonded. Finally, repeated extrusion and drawing are performed to prepare a nickel-iron composite rod. Step S45, drawing: With the assistance of the mold, the nickel-iron composite rod is drawn by mechanical force to prepare a composite metal wire with a diameter of 0.4 mm and a roughly circular cross-section.

[0175] Step S46, electroplating: Finally, an electroplating process is used to deposit a chromium protective coating with a thickness of approximately 0.0015 mm on the surface of the composite metal wire to prevent the iron from rusting.

[0176] Please see Figure 33 , Figure 33 yes Figure 31 The diagram shows an enlarged view of the composite metal wire at point B. In this embodiment, the composite metal wire is a ternary composite metal wire configuration. It is a solid wire with a cross-section resembling tree rings, roughly circular in shape, and approximately 0.403 mm in diameter. It is made of a first magnetic metal material 1, nickel (N6, Curie temperature approximately 354°C), and a second magnetic metal material 2, iron (DT4, electrical pure iron, Curie temperature approximately 770°C), and is further processed by combining these materials. A third metal material 3, chromium plating, is applied to the outermost surface. The first magnetic metal material 1 can be a magnetic material such as nickel and is rod-shaped, serving as the metal core; the second magnetic metal material 2 can be a magnetic material such as iron and is ring-shaped, serving as the metal sheath; the third metal material 3 can be a magnetic material such as chromium and is ring-shaped, serving as the outer coating.

[0177] Example 12 Please see Figure 34 , Figure 34 This is a schematic diagram of another preparation process of the composite metal wire of this application, wherein the preparation method includes, but is not limited to, the following steps.

[0178] First, a composite strip is formed by laminating a first magnetic metal material 1, precision alloy 4J34 thin strip, with a second magnetic metal material 2, stainless steel 430 thin strip. Then, the composite strip is prepared into a composite tube with an inner diameter of about 0.4 mm. Finally, the composite tube is repeatedly drawn to prepare a capillary composite metal hollow wire with an outer diameter of 0.6 mm, a wall thickness of 0.1 mm, and an inner diameter of 0.4 mm.

[0179] Please see Figure 35 , Figure 35 yes Figure 34 The enlarged schematic diagram of the composite metal wire at point C shows that the metal wire in this embodiment is a binary composite metal wire, which is a hollow wire with a hollow cross-section. The outer perimeter is approximately circular with a diameter of about 0.6 mm, and the diameter of the central hole is 0.4 mm. It is made of a first magnetic metal material 1, an iron-nickel-cobalt alloy 4J34 precision alloy (Curie temperature approximately 470°C), and a second magnetic metal material 2, stainless steel 430 (Curie temperature approximately 700°C), which are then combined and processed. The first magnetic metal material 1, in a ring structure, is located on the outer layer, and the second magnetic metal material 2, also in a ring structure, is located on the inner layer; the two are closely connected.

[0180] This application also provides a cigarette cartridge containing the composite metal wire described in the foregoing embodiments. Please refer to [link to relevant documentation]. Figure 36 , Figure 36 This is a schematic diagram of a structure containing a composite metal wire. It should be noted that the composite metal wire in this embodiment can be used in electromagnetic cartridges of any structure. This embodiment is only used as an example of a cartridge structure for illustration.

[0181] In this embodiment, the cartridge is a slender cylinder with an outer diameter of approximately 7 mm and has a three-segment structure: the first segment is the matrix segment, approximately 16 mm long, containing 9 (or more, such as 3-100) composite metal wires from the aforementioned embodiment (using a composite metal wire made of two materials (first magnetic metal material 1 and second magnetic metal material 2) as an example), a paste-like aerosol matrix 4, and a shaping layer 5 of aluminum foil wrapped around the outer surface; the second segment is the cooling segment 6, which can be 15 mm long and mainly composed of polylactic acid to form a loose and porous structure; the third segment is the filter segment 7, which can be 14 mm long and mainly composed of cellulose acetate. The three cylindrical segments are arranged coaxially in sequence and are wound and bonded in parallel by the outer cigarette paper 8 to form the finished cartridge. When the cartridge is used in an electromagnetic smoking device, the small segments of the composite metal wires act as sensors, coupling with a high-frequency alternating electromagnetic field, generating eddy currents that heat and carbonize the adjacent aerosol matrix, releasing aerosol.

[0182] The composite metal wire, its manufacturing method, and the tobacco cartridge containing it described in this embodiment are suitable for applications in electromagnetic induction heating non-combustible tobacco products. The composite metal wire has a circular or nearly circular cross-section and contains 2-6 types of metallic materials, of which at least two are magnetic. The manufacturing process of the composite metal wire includes: surface treatment, lamination, slitting, chamfering, and drawing; or surface treatment, rod making, tube making, lamination, and drawing. The tobacco cartridge contains a filter tip, a cooling component, an aerosol matrix, and several short segments of the composite metal wire, possessing the characteristic of electromagnetic eddy current heating. During the inhalation process of the tobacco cartridge, the composite metal wire provides inductive heating and magnetic signal feedback, and can assist the smoking device in achieving anti-counterfeiting identification and temperature measurement of the tobacco cartridge.

[0183] In addition, this application also provides a smoke-generating device; please refer to [link to relevant documentation]. Figure 37 , Figure 37 This is a schematic diagram of an embodiment of the smoke-generating device of this application. The smoke-generating device includes a smoke-generating device 410 and a smoke cartridge 420. The smoke cartridge 420 can be inserted into the smoke-generating device 410 and heated by the smoke-generating device 410. The smoke cartridge 420 can be an electromagnetic smoke cartridge as described in the previous embodiment or a different smoke cartridge. Correspondingly, the smoke-generating device 410 can have an electromagnetic heating coil or a heating wire, heating plate, or other structure that can be inserted into the smoke cartridge 420. The electromagnetic heating coil is configured to be electromagnetically coupled to multiple sensor strands 302b. Detailed structural features of the smoke-generating device 410 are beyond the understanding of those skilled in the art and will not be elaborated here.

[0184] In the description of this application, 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. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more root features. In the description of this application, "multiple root features" means two or more, unless otherwise explicitly specified.

[0185] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0186] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0187] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A smoke-generating body, characterized in that, include: Multiple wires, each containing a smoke-generating medium; and, Multiple receptor strands are woven together with multiple strands of the aforementioned yarn; The wire and the sensor strands both extend along a predetermined direction; on the end face of the smoke generator, multiple sensor strands are arranged in a ring around the axis of the smoke generator.

2. The smoke-generating body according to claim 1, characterized in that, The multiple receptor strands are spaced apart between any two adjacent receptor strands, and at least one strand is provided between any two adjacent receptor strands.

3. The smoke-generating body according to claim 1 or 2, characterized in that, The multiple receptor strands are arranged in a ring array to form the first ring column.

4. The smoke-generating body according to claim 3, characterized in that, Each of the sensor strands is surrounded by a plurality of the strands.

5. The smoke-generating body according to claim 1 or 2, characterized in that, The multiple sensor strands are arranged in a ring array and form at least a first ring column and a second ring column arranged adjacent to each other, with the first ring column located between the second ring column and the axis of the smoke-generating body.

6. The smoke-generating body according to claim 5, characterized in that, The first and second annular columns are staggered in the circumferential direction of the smoke-generating body.

7. The smoke-generating body according to claim 6, characterized in that, The first annular column includes a first receptor strand and a second receptor strand, and the second annular column includes a third receptor strand. The first receptor strand, the second receptor strand, and the third receptor strand are arranged adjacent to each other, and the center of the first receptor strand, the center of the second receptor strand, and the center of the third receptor strand are respectively located at the vertices of an equilateral triangle.

8. The smoke-generating body according to claim 5, characterized in that, Each of the receptor strands in the second annular column is partially surrounded by a plurality of the strands.

9. The smoke-generating body according to claim 1, characterized in that, Smoke channels are formed between adjacent wires and between the sensor strands and the wires.

10. A type of e-cigarette cartridge, characterized in that, Includes the smoke-generating body as described in any one of claims 1-9.

11. A smoke-generating device, characterized in that, include: Smoke generating device, including electromagnetic heating coil; as well as, The smoke cartridge includes the smoke-generating body as described in any one of claims 1-9; The cigarette cartridge is configured to be inserted into the smoking device, and the electromagnetic heating coil is configured to be electromagnetically coupled to multiple strands of the sensor wires.

Images