Heating cigarette with high thermal conductivity

Abstract

The utility model discloses a heating cigarette with high thermal conductivity. The heating cigarette comprises a filtering section and a matrix section, the matrix section comprises an electromagnetic induction sheet and a tobacco sheet, the electromagnetic induction sheet and the tobacco sheet are mixed and filled to form a net-shaped structure, and the electromagnetic induction sheet rapidly and uniformly heats the tobacco sheet through the eddy current effect to generate smoke; the filtering section is used for filtering and / or cooling the smoke, and the filtering section comprises cellulose acetate fibers. The magnetic heat conduction materials are directionally arranged through vertical magnetic field drying treatment, a continuous heat conduction channel perpendicular to the sheet plane is formed, the interlayer heat conduction performance of the tobacco sheet is improved, and the sheet utilization rate and the smoke amount are increased; meanwhile, the electromagnetic induction sheet is cut into the shredded sheet structures with the same size as the tobacco sheets and is uniformly mixed, so that the heating uniformity of the electromagnetic heating cigarette is improved, the energy consumption of heating the cigarette is reduced, and the cruising ability of the heating smoking set is improved.

Description

Technical Field

[0001] This utility model belongs to the field of novel electromagnetic heating technology for tobacco, and specifically relates to a heated cigarette with high thermal conductivity. Background Technology

[0002] Heated cigarettes, as an alternative to traditional tobacco, have become an important growth point in the tobacco industry due to their harm-reduction properties. Heated cigarettes use an external heat source to heat tobacco sheets to 300–350°C, thereby promoting the volatilization of nicotine and aroma compounds. The core challenge lies in the thermal conductivity of the tobacco sheet. Tobacco sheets are reconstructed from tobacco powder, atomizing agents, and wood fibers using a papermaking process, resulting in a porosity as high as 65%. Compared to the thermal conductivity of copper (400 W / m·K), the effective thermal conductivity of tobacco sheets is only 0.2–0.4 W / m·K, creating a significant barrier to thermal conductivity. According to existing data, in the central heating mode, only the area within 5 mm of the heating element reaches an effective volatilization temperature of ≥280°C, while the outer area is below 200°C, resulting in a tobacco substance utilization rate of less than 40%. To compensate for heat transfer loss, the temperature of the heating element is usually raised to above 400-450°C, resulting in a flue gas temperature of 70-80°C, which is about 15°C higher than that of traditional cigarettes. However, high-temperature operation will cause the heating element to age rapidly and is prone to local overheating, which may lead to a fire.

[0003] Electromagnetic induction heating achieves non-contact energy transfer, with its technological advantages being particularly significant in the field of heated cigarettes. A flat coil array generates an alternating magnetic field, inducing eddy currents in the metal foil within the cigarette, achieving an energy conversion efficiency of 82%, nearly 30% higher than resistance heating. Dynamic frequency control (DFS) technology matches the cigarette impedance in real time, controlling magnetic field strength fluctuations within ±3%, thereby optimizing magnetic field distribution and improving energy efficiency. An internal aluminum foil layer within the cigarette forms an induction circuit, preheating the airflow to 180°C and increasing heating uniformity, resulting in a 60% increase in the release rate of tobacco volatiles and an initial nicotine delivery of 1.2–1.5 mg. Its technological advantages include automatic heating triggered by a magnetic field sensor detecting cigarette insertion, eliminating the need for manual operation. A closed-loop temperature control system, combined with sensors, dynamically adjusts the magnetic field strength to prevent localized overheating, stabilizing the temperature of the tobacco heating area at 320–360°C, significantly reducing the release of harmful substances (such as nicotine and benzene) and minimizing secondhand smoke hazards.

[0004] Despite the significant advantages of electromagnetic heating technology, it still faces technical bottlenecks in its commercialization process. Currently, mainstream metal sheets need to withstand continuous heating of 300–350°C, but the metal lattice is prone to slippage at high temperatures, leading to microstructural deformation. After 500 heating cycles, the magnetic permeability of iron oxide materials drops to 12%, directly affecting eddy current efficiency. Long-term use, besides causing an unpleasant metallic taste, can also lead to localized temperature increases, resulting in scalding the mouth and negatively impacting the consumer's smoking experience.

[0005] Therefore, it is necessary to design a heated cigarette with high thermal conductivity to improve the thermal conductivity, in order to solve the problems of low tobacco utilization, discontinuous heat conduction channels of tobacco sheet, excessively high local temperature after smoking, and high energy consumption of electromagnetic heated cigarettes. Utility Model Content

[0006] The purpose of this patent is to improve the thermal conductivity of heated cigarettes, making the heat conduction channel continuous and the heating uniform, thereby increasing the utilization rate of tobacco sheets and the amount of smoke, reducing the local temperature of heated cigarettes after smoking and the energy consumption of electromagnetically heated cigarettes, and thus increasing the endurance of heated cigarette devices.

[0007] To solve the above technical problems:

[0008] This patent provides a heated cigarette with high thermal conductivity. The heated cigarette includes a filter section and a matrix section. The matrix section includes an electromagnetic induction sheet and a tobacco sheet. The electromagnetic induction sheet and the tobacco sheet are mixed and filled to form a mesh structure. The electromagnetic induction sheet heats the tobacco sheet quickly and uniformly through the eddy current effect to generate smoke. The filter section is used to filter and / or cool the smoke. The filter section includes cellulose acetate.

[0009] Furthermore, the width of the electromagnetic induction sheet is 0.7–1.5 mm, and the thickness of the electromagnetic induction sheet is 0.03–0.06 mm.

[0010] Furthermore, the proportion of electromagnetic induction sheet mixed in is less than or equal to 20%.

[0011] Furthermore, the tobacco sheets are shredded into filaments.

[0012] Furthermore, the tobacco sheet includes tobacco powder, atomizing agent, adhesive, and magnetic thermally conductive material.

[0013] Furthermore, the magnetic heat-conducting material is aluminized iron fiber, which is oriented throughout the interior of the tobacco sheet to form a continuous heat-conducting channel perpendicular to the plane of the tobacco sheet.

[0014] Furthermore, the magnetic thermally conductive material accounts for 1 to 10 wt% of the tobacco powder.

[0015] Furthermore, the length of the aluminized iron fiber is 0.15–0.25 mm and the diameter is 0.01–0.05 mm.

[0016] Furthermore, heated cigarettes also include support sections and wrapping components.

[0017] Furthermore, the packaged component sequentially connects the filter section, support section, and matrix section into a single unit, forming a cigarette-shaped cylinder.

[0018] Compared with existing technologies, this patent has the following beneficial effects:

[0019] 1. The high thermal conductivity heated cigarette provided by this utility model adds a magnetic heat-conducting material to the matrix section. The magnetic heat-conducting material is aluminized iron fiber, which is oriented to form a continuous heat-conducting channel perpendicular to the plane of the tobacco sheet manufactured by the slurry method.

[0020] 2. The high thermal conductivity heated cigarette matrix section provided by this utility model also incorporates an electromagnetic induction sheet, with the addition amount of the electromagnetic induction sheet accounting for 5-15%. This results in a composite thermal conductivity of 2.37-9.70 W / m·K, which is significantly higher than the thermal conductivity of tobacco sheets manufactured by the existing slurry method (0.2-0.4 W / m·K). This improves the uniformity of electromagnetic heat conduction by 40%, reduces the local temperature by 7°C, increases the utilization rate of tobacco sheets and the amount of smoke in the heated cigarette, and does not produce any off-flavors. At the same time, it also reduces the local temperature of the heated cigarette after smoking and the energy consumption of the electromagnetically heated cigarette, increasing the endurance of the heated cigarette device.

[0021] 3. The manufacturing process of the high thermal conductivity heated cigarette provided by this utility model is simple and low-cost, making it suitable for industrial production. Attached Figure Description

[0022] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0023] Figure 1 A schematic diagram of the overall structure of a heated cigarette;

[0024] Figure 2 A schematic diagram of the bituminous coal section used for heating cigarettes;

[0025] Figure 3 for Figure 2 Sectional view of AA.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] Filtering section: 1;

[0028] Support section: 2;

[0029] Matrix segment: 3;

[0030] Electromagnetic induction sheet: 31;

[0031] Tobacco sheets: 32;

[0032] Packages: 4. Detailed Implementation

[0033] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0034] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] It should be understood that although terms such as "both ends," "middle," "upper," "lower," "inner," and "outer" may be used in this patent to describe various types of information, these information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. Without departing from the scope of this patent, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "both ends," "middle," "inner," or "outer" may explicitly or implicitly include one or more of that feature. In the description of this patent, "multiple combinations" means two or more, unless otherwise explicitly specified.

[0036] To make the objectives, technical solutions, and advantages of this patent clearer, the embodiments of this patent will be described in further detail below with reference to the accompanying drawings. Unless otherwise specified, the experimental methods described in the embodiments of this patent are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0037] like Figure 1-3 The present invention provides a heated cigarette with high thermal conductivity, comprising a filter section 1 and a matrix section 3. The matrix section 3 comprises a tobacco sheet 32 ​​and an electromagnetic induction sheet 31. The electromagnetic induction sheet 31 and the tobacco sheet 32 ​​are mixed and filled to form a mesh structure. The electromagnetic induction sheet 31 heats the tobacco sheet 32 ​​rapidly and uniformly through the eddy current effect to generate smoke. The filter section 1 is used to filter and / or cool the smoke. The filter section 1 comprises cellulose acetate.

[0038] Specifically, the tobacco sheet 32 ​​includes tobacco powder, atomizing agent, adhesive and magnetic thermally conductive material.

[0039] Specifically, the manufacturing method of tobacco sheet 32 ​​is the slurry method. The slurry method is as follows: add 10Kg of tobacco powder, 1.2Kg of bagasse fiber, 0.5Kg of adhesive, 1Kg of magnetic heat-conducting material, 1.5Kg of atomizing agent and 50Kg of water, mix and stir evenly, then eliminate air bubbles under negative pressure, and then evenly coat it on a heated steel belt with a magnetic field, and dry it through a magnetic field.

[0040] Specifically, the magnetic field strength is 0.1–0.3T, 0.3–0.5T, or 0.5–1.0T.

[0041] Specifically, the magnetic heat-conducting material is aluminized iron fiber, which is oriented throughout the interior of the tobacco sheet 32 ​​manufactured by the slurry method, forming a continuous heat-conducting channel perpendicular to the plane of the tobacco sheet 32.

[0042] Specifically, the front end of the steel strip is heated to 50°C for 3 minutes, and the rear end is heated to 105°C for 10 minutes to obtain tobacco sheet 32.

[0043] Specifically, the tobacco sheet 32 ​​is shredded according to conventional procedures. It can be understood that the tobacco sheet 32 ​​is in shred form. The shredding process of the tobacco sheet 32 ​​can improve the interlayer thermal conductivity of the tobacco sheet 32, and increase the utilization rate and smoke volume of the tobacco sheet 32.

[0044] This can be understood as follows: in the process of manufacturing tobacco sheet 32 ​​using the slurry method, a tobacco slurry is obtained by uniformly dispersing magnetic heat-conducting materials and other compounding agents in tobacco powder, so that the magnetic heat-conducting materials and tobacco powder are uniformly mixed. Furthermore, the magnetic heat-conducting material is aluminized iron fiber. Aluminized iron fiber itself has good electrical and thermal conductivity. Adding it to the cigarette sheet can improve the thermal conductivity of the cigarette sheet. Secondly, aluminized iron fiber has a certain magnetism and can be oriented under the action of a magnetic field. Moreover, since aluminized iron fiber has a certain strip structure, the magnetic field can make the aluminized iron fiber penetrate through the interior of the tobacco sheet 32 ​​manufactured by the slurry method, thereby forming a continuous heat-conducting channel inside the tobacco sheet 32, which greatly improves the interlayer thermal conductivity of the tobacco sheet 32.

[0045] Specifically, if the material is changed to magnetic powder, it is difficult for the slurry-based tobacco sheet to be continuously distributed at a low concentration in a solvent system, thus forming a continuous heat-conducting channel to ensure that heat is quickly transferred to the tobacco material, thereby achieving low-temperature uniform heating and achieving the purpose of heating without combustion.

[0046] Specifically, by controlling the length and diameter of the aluminized iron fiber, the local temperature gradient can be regulated, thus reducing the formation of hot spots and avoiding localized temperature channels that could lead to burns.

[0047] Specifically, iron fibers are easily oxidized at high temperatures. Aluminum plating on the surface forms a dense alumina layer, which isolates the iron fiber material from oxygen, significantly improving its heat resistance and allowing it to withstand temperatures above 600℃. Acidic components in tobacco powder (such as nicotine and tar) may corrode the iron fibers. The alumina plating layer on the iron fiber surface is preferentially corroded through the sacrificial anode effect, because aluminum has a lower potential than iron, thus protecting the structural integrity of the iron fiber.

[0048] Specifically, iron fibers, used as a skeleton material, maintain high strength even after being coated with aluminum, which can increase the tensile strength of tobacco sheets by 30% to 50% and prevent the iron fibers from breaking during heating. The porosity between iron fibers is usually 40% to 60%, affecting the efficiency of aerosol (i.e., smoke) formation. Aluminizing increases its surface roughness, thereby increasing the adhesion points of tobacco particles and optimizing the pore distribution.

[0049] Specifically, the aluminum coating can also act as a catalyst at high temperatures, thereby promoting the pyrolysis of lignin and cellulose in tobacco to generate specific flavor aldehydes and ketones, thus enhancing the richness of tobacco aroma and improving the quality of aerosols.

[0050] Specifically, the tobacco powder is obtained by pulverizing tobacco leaves, and the particle size of the tobacco powder is 100-200 mesh, 200-300 mesh, or 300-400 mesh. The adhesive is guar gum.

[0051] Specifically, the atomizing agent is propylene glycol and / or glycerol, and the atomizing agent accounts for 10 to 30 wt% of the tobacco powder.

[0052] Specifically, the concentration of the atomizing agent directly affects the smoke production effect of the prepared cigarette sheet. When the concentration of the atomizing agent is too low, the amount of smoke produced by the cigarette sheet is small, while when the concentration of the atomizing agent is too high, the amount of smoke produced by the cigarette sheet is large, but it is prone to absorbing moisture and is difficult to process.

[0053] Specifically, the length of the aluminized iron fiber is 0.15–0.18 mm, 0.18–0.22 mm, or 0.22–0.25 mm, and the diameter is 0.01–0.02 mm, 0.02–0.03 mm, or 0.03–0.05 mm.

[0054] Specifically, the preparation method of aluminized iron fiber is as follows: purchase commercial iron fiber (the iron fiber is the common iron fiber that can be purchased on the market), and use the ion sputtering method commonly used in existing technology to coat its surface with aluminum.

[0055] Specifically, the length of the aluminized iron fiber accounts for 1-3 wt%, 3-5 wt%, or 5-10 wt% of the tobacco powder.

[0056] Specifically, the thermal conductivity of the aluminized iron fibers in the tobacco sheet 32 ​​manufactured by the slurry method is 1.82-5.39 W / m·K, which is significantly higher than that of traditional sheets (0.05-0.2 W / m·K).

[0057] Specifically, the substrate segment 3 includes an electromagnetic induction sheet 31. The electromagnetic induction sheet 31, made of a magnetic material with good magnetic permeability, is placed inside the substrate segment 3.

[0058] Specifically, the width of the electromagnetic induction sheet 31 is approximately the same as the width of the tobacco sheet 32, and the length of the electromagnetic induction sheet 31 is equal to the cutting length of the tobacco sheet 32, or may be slightly greater or less than the length of the tobacco sheet 32.

[0059] Specifically, the width of the electromagnetic induction sheet 31 is 0.7–0.9 mm, 0.9–1.2 mm, or 1.2–1.5 mm. The thickness of the electromagnetic induction sheet 31 is 0.03–0.04 mm, 0.04–0.05 mm, or 0.05–0.06 mm.

[0060] This can be understood as the length of the electromagnetic induction sheet 31 being adjustable according to the length of the tobacco sheet produced by the slurry method.

[0061] Preferably, the thickness of the electromagnetic induction sheet 31 is 0.05 mm. At this time, the temperature at which the electromagnetic induction sheet 31 conducts heat is the same as the temperature required for optimal smoking of the heated cigarette, that is, the temperature is 300-350℃.

[0062] Specifically, the material of the electromagnetic induction sheet 31 is a soft magnetic material, such as pure iron, silicon steel, or permalloy (also known as iron-nickel alloy), which has a high permeability in weak magnetic fields.

[0063] Specifically, after the electromagnetic induction sheet 31 is cut to the length and width mentioned above, it is mixed evenly with the tobacco sheet 32 ​​and then filled into the matrix section 3 of the heated cigarette. In the matrix section 3 after filling, the total amount of magnetic heat-conducting material in the tobacco sheet 32 ​​and the electromagnetic induction sheet 31 added is not more than 20%.

[0064] Specifically, the proportion of the electromagnetic induction sheet 31 mixed into the matrix segment 3 is less than or equal to 15%.

[0065] Specifically, the electromagnetic induction sheet 31 is in close contact with the tobacco sheet 32, but the electromagnetic induction sheet 31 and the tobacco sheet 32 ​​are not located at the same position.

[0066] Specifically, the electromagnetic induction sheet 31 is mixed into the tobacco sheet 32, and its arrangement in the tobacco sheet 32 ​​can be either regular and orderly or disordered.

[0067] Specifically, the electromagnetic induction sheet 31 and the tobacco sheet 32 ​​are mixed and filled to form a mesh structure. Specifically, the mesh structure is formed by the electromagnetic induction sheet 31 and the tobacco sheet 32 ​​being interspersed. It can be understood that the mesh structure is formed by interspersing the electromagnetic induction sheet 31 between the tobacco sheets 32. Here, the tobacco sheet 32 ​​is not necessarily only a single tobacco sheet 32 ​​manufactured by the thick pulp method, but can also be multiple tobacco sheets 32 manufactured by the thick pulp method stacked to form a layer of tobacco sheet 32, thereby forming a "well" shaped mesh structure, or a mesh structure similar to a "well".

[0068] Specifically, the number of electromagnetic induction sheets 31 is at least two. Specifically, the total amount of magnetic thermally conductive material and electromagnetic induction sheets 31 added to the tobacco sheet 32 ​​accounts for 5% to 20% of the total amount in the heated cigarette inner matrix section 3.

[0069] Specifically, when the total amount of magnetic thermal conductive material and electromagnetic induction sheet 31 added to tobacco sheet 32 ​​accounts for 5% of the matrix section 3 of heated cigarette, the thermal conductivity is increased by 30% compared to adding aluminum-plated iron fiber only to tobacco sheet 32. At this time, the thermal conductivity is 2.37~7.10W / m·K.

[0070] Specifically, when the total amount of magnetic thermal conductive material and electromagnetic induction sheet 31 added to tobacco sheet 32 ​​accounts for 15% of the matrix section 3 of heated cigarette, the thermal conductivity is increased by 80% compared to adding only aluminum-plated iron fiber to tobacco sheet 32. At this time, the thermal conductivity is 3.28 to 9.70 W / m·K, which is significantly higher than the thermal conductivity of tobacco sheet 32 ​​manufactured by the existing slurry method (0.2 to 0.4 W / m·K).

[0071] Specifically, through infrared temperature measurement, when the total amount of magnetic heat-conducting material and electromagnetic induction sheet 31 added to the tobacco sheet 32 ​​accounts for 10% of the heated cigarette matrix section 3, the heating uniformity of the heated cigarette matrix section 3 can be improved by 40%, while the local temperature difference decreases by about 7°C, so that the mouth will not be burned and no off-flavor will be produced.

[0072] Specifically, the heated cigarette also includes a support section 2 and a wrapping component 4.

[0073] Specifically, the two ends of the support section 2 are connected to the filter section 1 and the matrix section 3 respectively, and the wrapping component 4 rolls and connects the filter section 1, the support section 2 and the matrix section 3 into a whole to form a cigarette-shaped cylinder.

[0074] Specifically, package 4 is cigarette paper, which is a type of formed paper, including hemp pulp paper and special wood pulp paper.

[0075] Specifically, hemp pulp paper is used for air permeability control, with a porosity of 30%–50%, to control the aerosol release rate; it contains flame retardants (such as aluminum hydroxide) to improve safety. Specialty wood pulp paper is used to enhance stiffness and reduce heat deformation.

[0076] Specifically, filter section 1 is composed of cellulose acetate material and is used for filtering and / or cooling multiple fumes. Furthermore, the cellulose acetate material also contains activated carbon or nanofiber layers to filter harmful substances.

[0077] Therefore, it can be concluded that the heated cigarette with high thermal conductivity provided by this utility model has the following beneficial effects compared with the prior art:

[0078] 1. The high thermal conductivity heated cigarette provided by this utility model adds a magnetic heat-conducting material to the matrix section. The magnetic heat-conducting material is aluminized iron fiber, which is oriented to form a continuous heat-conducting channel perpendicular to the plane of the tobacco sheet manufactured by the slurry method.

[0079] 2. The high thermal conductivity heated cigarette matrix section provided by this utility model also incorporates an electromagnetic induction sheet, with the addition amount of the electromagnetic induction sheet accounting for 5-15%. This results in a composite thermal conductivity of 2.37-9.70 W / m·K, which is significantly higher than the thermal conductivity of tobacco sheets manufactured by the existing slurry method (0.2-0.4 W / m·K). This improves the uniformity of electromagnetic heat conduction by 40%, reduces the local temperature by 7°C, increases the utilization rate of tobacco sheets and the amount of smoke in the heated cigarette, and does not produce any off-flavors. At the same time, it also reduces the local temperature of the heated cigarette after smoking and the energy consumption of the electromagnetically heated cigarette, increasing the endurance of the heated cigarette device.

[0080] 3. The manufacturing process of the high thermal conductivity heated cigarette provided by this utility model is simple and low-cost, making it suitable for industrial production.

[0081] The terminology and expressions used herein are for descriptive purposes only, and this invention should not be limited to these terms and expressions. The use of these terms and expressions does not mean the exclusion of any illustrative and descriptive equivalent features (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be considered to cover all such equivalents.

[0082] Similarly, it should be noted that although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A heated cigarette with high thermal conductivity, characterized in that, The heated cigarette includes a filter section and a matrix section; The matrix segment includes an electromagnetic induction sheet and a tobacco sheet. The electromagnetic induction sheet and the tobacco sheet are mixed and filled to form a mesh structure. The electromagnetic induction sheet heats the tobacco sheet rapidly and uniformly through the eddy current effect to generate smoke. The filter section is used to filter and / or cool the smoke, and the filter section includes cellulose acetate.

2. The heated cigarette with high thermal conductivity according to claim 1, characterized in that, The width of the electromagnetic induction sheet is 0.7 to 1.5 mm, and the thickness of the electromagnetic induction sheet is 0.03 to 0.06 mm.

3. The heated cigarette with high thermal conductivity according to claim 1, characterized in that, The proportion of the electromagnetic induction sheet is less than or equal to 20%.

4. The heated cigarette with high thermal conductivity according to claim 1, characterized in that, The tobacco sheets are shredded into filaments.

5. The heated cigarette with high thermal conductivity according to claim 4, characterized in that, The tobacco sheet comprises tobacco powder, atomizing agent, adhesive, and magnetic thermally conductive material; The magnetic thermally conductive material is aluminized iron fiber, which is oriented to form a continuous thermally conductive channel perpendicular to the plane of the filamentous tobacco sheet.

6. The heated cigarette with high thermal conductivity according to claim 5, characterized in that, The magnetic thermally conductive material accounts for 1 to 10 wt% of the tobacco powder.

7. The heated cigarette with high thermal conductivity according to claim 6, characterized in that, The length of the aluminized iron fiber is 0.15 to 0.25 mm.

8. The heated cigarette with high thermal conductivity according to claim 7, characterized in that, The diameter of the aluminized iron fiber is 0.01 to 0.05 mm.

9. The heated cigarette with high thermal conductivity according to claim 1, characterized in that, The heated cigarette also includes a support section and a wrapping component.

10. The heated cigarette with high thermal conductivity according to claim 9, characterized in that, The packaged component sequentially connects the filter section, the support section, and the matrix section into a single unit, forming a cigarette-shaped cylinder.

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