Heating cigarette smoking set, heating cigarette and heating cigarette system

Abstract

The utility model belongs to the field of heating non-combustion tobacco products, and particularly relates to a heating cigarette smoking set, a heating cigarette and a heating cigarette system. The heating cigarette smoking set comprises a cigarette containing cavity and a magnetic attraction element. Wherein the magnetic attraction element is located in the cigarette containing cavity, or the periphery of the cigarette containing cavity is surrounded by the magnetic attraction element; the magnetic attraction element is a permanent magnet or a coil which generates a magnetic field when powered on. Due to the attraction characteristic of the magnetic attraction element, a gear piece in a traditional particle type heating cigarette does not need to be arranged in the cigarette, the technological process of cigarette manufacturing is simplified, aerosol interception caused by the existence of the gear piece is reduced, and the release efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of heating not burning tobacco products, concretely relates to a heating cigarette smoking set, a heating cigarette and a heating cigarette system. BACKGROUND

[0002] Heating not burning cigarette is a new development direction in the field of tobacco in recent years, which realizes the generation and release of smoke aerosol by heating release smoke material at low temperature. The filling state of release smoke material in the cigarette can significantly affect the generation and transmission of aerosol. The release smoke material in the form of particles is one of the commonly used release smoke materials for heating cigarettes, which has the advantages of clean smoke and simple production process. However, the characteristics of point contact between release smoke particles determine that the filling state in the cigarette is loose, which is not conducive to the transmission of heat and the generation of aerosol in the heating process.

[0003] In addition, the loose filling state and good fluidity of particles determine that they will be disturbed violently by airflow during the smoking process. Therefore, the existing particle type heating cigarette cigarette uses a multi-hole fixture segment to block the particles to prevent them from flowing out of the heating area during the smoking process. Chinese patent application (application number CN202210306722.4) introduces the multi-hole fixture segment (commonly known as "gear piece") in detail. However, the "gear piece" structure is arranged at the key position of aerosol formation and evolution - the hollow segment, which blocks the flow of particles while trapping a large amount of aerosol, seriously affecting the smoking effect and thus the sensory experience. In addition, the "gear piece" also brings many inconveniences to the industrialized manufacturing of particle type heating cigarette cigarettes, increases the production cost, and reduces the production efficiency.

[0004] Therefore, in order to change the loose state of particles, solve the pain points of "gear piece", and ultimately improve the release efficiency of particle type aerosol products, the method is proposed. UTILITY MODEL CONTENTS

[0005] The first aspect of the present application provides a heating cigarette smoking set, which comprises: a cigarette containing cavity, a magnetic attraction element;

[0006] The magnetic attraction element is located in the cigarette containing cavity, or the magnetic attraction element is surrounded outside the periphery of the cigarette containing cavity.

[0007] The magnetic attraction element is a permanent magnet or a coil that generates a magnetic field when energized.

[0008] Preferably, when the magnetic attraction element is located in the cigarette containing cavity:

[0009] A long strip structure is arranged in the cigarette containing cavity along the axial direction of the cigarette containing cavity.

[0010] The long strip structure is a magnetic element; or the long strip structure contains a magnetic element, which is located on the surface or inside of the long strip structure.

[0011] The magnetic material can be a layer of permanent magnetic material inlaid / coated in the center or arranged along the axis of the long strip structure. Or the long strip structure is hollow inside, and the magnetic material is a spiral coil located inside the hollow structure.

[0012] Preferably, the long strip structure or the tubular element is a magnetic field permeable material, such as ceramic.

[0013] Preferably, the heated cigarette smoking set comprises a tubular element;

[0014] The cigarette accommodating cavity is an internal hollow part of the tubular element;

[0015] The tubular element is a magnetic element; or the tubular element contains a magnetic element, which is located on the surface or inside of the tubular element.

[0016] Of course, when the magnetic element is located on the inner surface of the long strip structure or the tubular element, the long strip structure or the tubular element can also be selected as a magnetic field impermeable material, such as iron.

[0017] The magnetic material can be a layer of permanent magnetic material inlaid / coated on the inner wall of the tubular element and arranged along the axis. Or the magnetic material is a spiral coil around the inner wall or the outer wall of the tubular element.

[0018] Preferably, the long strip structure has a heating function;

[0019] Or the long strip structure does not have a heating function, and the heated cigarette smoking set has a heating element.

[0020] When the long strip structure has a heating function, it can be selected as a central heating needle / heating sheet.

[0021] Preferably, the tubular element has a heating function;

[0022] Or the tubular element does not have a heating function, and the heated cigarette smoking set has a heating element.

[0023] When the tubular element has a heating function, it can be selected as a circumferential heating ring.

[0024] When the long strip structure or the tubular element does not have a heating function, the heated cigarette smoking set has a separate heating element. The heating element can be an electric resistance heating type element, such as a circumferential heating element located around the cigarette accommodating cavity, an end heating element located at the end of the cigarette accommodating cavity, or an air heating type heating element located in the airflow passage of the heated cigarette smoking set.

[0025] The second aspect of the present application provides a heated cigarette system, which comprises the heated cigarette smoking set of any one of the first aspect and a heated cigarette.

[0026] The heated cigarette comprises a smoking segment, and the smoking segment has magnetic smoking particles.

[0027] The smoking segment is located in the cigarette accommodating cavity of the heated cigarette, and a plurality of the magnetic smoking particles are attracted to the magnetic attraction element and kept integrated around the magnetic attraction element.

[0028] Preferably, the magnetic smoking particles comprise a smoking substance and a magnetic substance.

[0029] Preferably, the distal lip end of the smoking segment has a blocking member to block the magnetic smoking particles. The proximal lip end of the smoking segment does not have a particle blocking element, such as a gear member or the like.

[0030] Preferably, the blocking member is a puncturable blocking member, and the long strip structure has a pointed end.

[0031] The magnetic tobacco particles refer to tobacco particles into which a magnetic attractable component, such as iron, nickel, cobalt or an alloy thereof, is incorporated. The magnetic substance is mixed with the smoking substance in the form of a micro-powder or a nano-particle, or is embedded into the smoking substance through a special composite process. This design ensures that the particles can respond to the magnetic force under the action of a magnetic field, so as to achieve close fitting with the magnetic attraction element.

[0032] Preferably, when the magnetic attraction element is a coil generating a magnetic field by being energized, the coil is connected to a direct current power source instead of an alternating current power source, so as to avoid generating eddy current in the magnetic tobacco particles and not attracting the magnetic tobacco particles.

[0033] Preferably, when the magnetic attraction element is a coil generating a magnetic field by being energized, the coil is insulated from the long strip structure or the tubular element.

[0034] Preferably, the magnetic attractable component is uniformly distributed inside the single magnetic tobacco particle and is tightly wrapped by the smoking substance.

[0035] The third aspect of the present application provides a heated cigarette, which comprises a smoking segment, and the smoking segment has magnetic smoking particles.

[0036] The distal lip end of the smoking segment has a blocking member to block the magnetic smoking particles, and the proximal lip end of the smoking segment does not have a particle blocking element.

[0037] The fourth aspect of the present application provides a method for improving the release efficiency of a particle type aerosol product, which uses the heating cigarette system of the first aspect.

[0038] Compared with the prior art, the present application has the following beneficial effects:

[0039] 1. Simplification of cigarette structure: Due to the characteristics of magnetic attraction, there is no need to set a "gear element" in the traditional particle type heating cigarette in the cigarette, which simplifies the process of cigarette manufacturing and reduces the aerosol retention caused by the "gear element", thereby improving the release efficiency.

[0040] 2. Uniform heating: In the preferred technical solution, the long strip structure or tubular element where the magnetic attraction element is located has a heating function and also serves as a heating element. During the smoking process of the heating cigarette, although the airflow in the cigarette may cause certain disturbance to the magnetic tobacco particles, due to the magnetic attraction, the magnetic tobacco particles can be closely attached to the surface of the heating element, ensuring that the particles will not be displaced or detached during the entire smoking process, effectively avoiding the phenomenon of local overheating or cold spots, achieving more uniform heating effect and maintaining heating stability.

[0041] 3. Optimization of user experience: Through more stable heating and uniform release of smoke, users can obtain a more consistent and comfortable smoking experience. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 Structure diagram of magnetic tobacco particle structure.

[0043] Figure 2 Structure diagram (2A) of the heating needle 1 with a spiral coil 2 in the hollow part and structure diagram (2B) of the heating smoking set with the heating needle 1. Figure 2 Structure diagram (2A) of the heating needle 1 with a spiral coil 2 in the hollow part and structure diagram (2B) of the heating smoking set with the heating needle 1. Figure 3 Structure diagram (3A) of the cross section of the heating smoking set with a circumferential heating element 3 and structure diagram (3B) of the overall structure. The circumferential heating element 3 is provided with a coil 4.

[0044] Figure 4 Structure diagram (4A) of the cross section of the heating cigarette system with a heating needle and structure diagram (4B) of the overall structure.

[0045] Figure 5 Structure diagram (4A) of the cross section of the heating cigarette system with a circumferential heating element and structure diagram (4B) of the overall structure.

[0046] LIST OF REFERENCE NUMBERS:

[0047] 1. heating needle, 2. helical coil, 3. circumferential heating element, 4. coil, 5. magnetic material; 6. tobacco substrate. DETAILED DESCRIPTION

[0048] The present application will be further described with reference to the following examples.

[0049] It will be appreciated by those skilled in the art that the following examples are given by way of illustration and are not intended to limit the present application. In the examples, unless otherwise stated, the techniques and conditions are as described in the literature or as recommended by the manufacturer of the products used. Where the manufacturer of a product is not named, it is not to be construed that it is an excluded product.

[0050] It will be understood by those within the art that, in some instances, the singular has been used herein and that to one skilled in the art, the singular has multiple equivalents. It is specifically intended that includes both the singular as well as the plural unless it is logically impossible. It will be further understood that the use of a singular form herein, e.g., "a" or "the," includes a plural form as well, unless expressly contradicted by context. The terms "comprises", "comprising", "includes", "including", "contains", "containing" or variations thereof do not specify an exhaustive or complete list of elements or steps, but rather are specified to mean "including, but not limited to". The terms "a" and "an" are used in the sense that they mean "one or more", and the singular forms "a" and "an" are intended to include both singular and plural forms, unless the context clearly indicates otherwise. The terms "coupled" and "connected," along with derivatives thereof are used broadly and encompass both direct and indirect couplings, connections, associations and / or interactions, whether mechanical, electrical, chemical, common, permanent, removable, and / or the like. The term "substantially" is used to account for expected variations in the manufacturing process, e.g., in the case of a shape, the shape is not perfect, but is substantially the shape. The term "comprising" is used to include the presence of stated features, integers, steps, operations, elements, components and / or groups thereof, but not to the exclusion of the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The term "and / or" includes combinations thereof, e.g., "A and / or B" means "A or B or both A and B". The term "about" means approximately or nearly as understood by those of ordinary skill in the art. The term "coupled" means directly connected to or in communication with the case where the connection is mechanical or electrical. The term "connected" means directly or indirectly connected to or in communication with the case where the connection is mechanical or electrical. The term "wireless" means communication without the use of wires, cables, or other communication media.

[0051] In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise stated. The terms "inner", "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are used only to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "provided with" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application should be understood according to the specific circumstances.

[0053] Those skilled in the art can understand that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0054] The present application provides a heating non-combustible tobacco particle device utilizing magnetic action, which combines permanent magnetic or electromagnetic heating elements to ensure that tobacco particles closely adhere to the magnetic attraction elements during heating, achieving uniform heating and improving aerosol release efficiency.

[0055] When the long strip structure or tubular element has a heating function, the principle of the present application is as follows:

[0056] The heating cigarette set realizes permanent magnetism by the following scheme:

[0057] The core design of the permanent magnet heating device is to combine permanent magnetic materials (such as neodymium iron boron, ferrite, etc.) with heating elements to form a heating body with magnetic force. The permanent magnetic material can be embedded in the structure of the heating body or used as a layer of coating material on the surface of the heating body.

[0058] The advantage of the permanent magnet heating device is that it does not require additional power supply to generate a magnetic field. This design is relatively simple and suitable for portable heating equipment that requires low energy consumption or lightweight structure. The selection of permanent magnetic materials also needs to consider their thermal stability to ensure that they can maintain their magnetic properties in high-temperature heating environments and avoid demagnetization.

[0059] The heating cigarette set realizes electromagnetism by the following scheme:

[0060] Electromagnetism is achieved by generating an electromagnetic field through a powered coil and using the principle of electromagnetic induction to attract tobacco particles containing magnetic components. In this scheme, a coil is arranged on the periphery or inside of the heating body. When the device is powered on, the current flows through the coil, generating a magnetic field. This magnetic field attracts the magnetic particles in the cigarette, making them adhere to the surface of the heating body.

[0061] For example, a central heating needle can be designed as a hollow structure with a powered coil inside. When the coil is powered on, a magnetic field is formed outside the heating needle, attracting tobacco particles to adhere around the needle body. For a circumferential heating ring, a spiral coil can be arranged inside the shell of the heating ring. When powered on, it generates a uniform annular magnetic field, ensuring that tobacco particles are distributed on the entire inner surface of the heating ring.

[0062] The electromagnetic heating device has the characteristics of strong controllability. By adjusting the current size or the number of turns of the coil, the magnetic field strength can be flexibly controlled to adapt to different types of tobacco particles or different heating needs. At the same time, this design is also suitable for realizing magnetic field attraction in a larger range, and is suitable for various shapes of heating elements.

[0063] The material selection of the magnetic heating device follows the following principles:

[0064] Permanent magnet material selection: Permanent magnet materials need to have high magnetism and good heat resistance. Commonly used permanent magnet materials include neodymium iron boron, ferrite, and aluminum-nickel-cobalt alloy. These materials have high magnetic strength and can produce enough magnetic force in a small size to attract tobacco particles.

[0065] Neodymium iron boron: It has a high magnetic energy product and can produce a strong magnetic field in a small volume, which is very suitable for small heating elements in portable devices.

[0066] Ferrite: Although the magnetic force is weak, it has good thermal stability and is suitable for high-temperature heating scenarios.

[0067] Aluminum-nickel-cobalt: It has excellent high-temperature resistance and is suitable for heating devices that work at high temperatures for a long time.

[0068] Electromagnetic coil material selection: Electromagnetic coils are usually made of copper or aluminum wire, which has good electrical conductivity and can maintain stable current conduction during heating.

[0069] Copper wire: Due to its excellent electrical conductivity and low resistance, copper wire can effectively generate a magnetic field and is suitable for heating element designs that require strong magnetic fields.

[0070] Aluminum wire: Although its electrical conductivity is slightly inferior to copper, it is lighter in weight and suitable for situations in portable devices where weight reduction is required.

[0071] The process design of the magnetic heating device follows the following principles:

[0072] The heating element needs to be made of high-temperature-resistant materials such as stainless steel or ceramic materials. These materials not only can withstand high temperatures, but also have good thermal conductivity, ensuring uniform heating of tobacco particles. The design of the heating element should also be coordinated with the magnetic element to ensure stability when the cigarette is inserted and to ensure sufficient contact between the tobacco particles and the heating element.

[0073] In addition, specially treated stainless steel materials should be selected to minimize their shielding effect on the magnetic field: treatments include but are not limited to: 1. Adjusting the content of alloy elements such as increasing manganese, cadmium, indium, etc. to change its magnetic field performance, thereby reducing the shielding effect on the magnetic field; 2. Proper heat treatment to change its microstructure to reduce shielding; 3. Demagnetization treatment.

[0074] When the particle-type heated cigarette is inserted into the heating device, the magnetic tobacco particles are immediately attracted by the magnetic force under the magnetic action, and automatically tightly adhere to the surface of the heating element. This adhesion design ensures that each particle can receive uniform and sufficient heat transfer, avoiding the situation of local overheating or insufficient heating in traditional heating methods.

[0075] Figure 1 Figure 1 is a schematic diagram of the structure of magnetic tobacco particles, which includes magnetic material 5 and tobacco matrix 6.

[0076] Figure 2 Figure 2 is a schematic diagram of the structure of the heating needle 1 with a spiral coil 2 in the hollow part of the heating needle 1.

[0077] Figure 2 Figure 3 is a schematic diagram of the heating device structure of the heating needle 1 of Figure 2. Figure 2 Figure 4 is a schematic diagram of the heating device structure of the heating needle 1 of Figure 2.

[0078] Figure 3 Figure 5 is a schematic diagram of the cross-sectional structure (5A) and the overall structure (5B) of the heating cigarette system with a heating needle.

[0079] Figure 4 Figure 6 is a schematic diagram of the cross-sectional structure (6A) and the overall structure (6B) of the heating cigarette system with a heating needle.

[0080] Figure 5 Figure 7 is a schematic diagram of the cross-sectional structure (7A) and the overall structure (7B) of the heating cigarette system with a circumferential heating element.

[0081] Example 1

[0082] 1. Preparation of tobacco particles

[0083] First, tobacco particles containing magnetic components are prepared. The specific method is to uniformly incorporate a small amount of magnetic material, such as iron powder, nickel powder or cobalt powder, into tobacco products. These magnetic particles are uniformly distributed in the tobacco matrix through nanoparticle technology, with the magnetic component accounting for 0.1% to 2% of each tobacco particle, to ensure that the particles have sufficient response capability in the magnetic field while not affecting the taste or burning characteristics of the tobacco. The diameter of the tobacco particles is usually between 0.5 mm and 2 mm, ensuring that the particles are evenly distributed inside the cigarette and can be effectively attracted by the magnetic field.

[0084] 2. Design of heating device in heating device

[0085] The present embodiment adopts a design of a permanent magnetic center heating needle. The heating needle is made of high thermal conductivity material (such as nickel-chromium alloy), and the outer surface is plated with a thin layer of permanent magnetic material (such as neodymium iron boron). The heating needle is about 50 mm long and about 2 mm in diameter, and can be inserted into the center of the granular heating cigarette.

[0086] The core design of the heating needle is to have a layer of permanent magnetic material on its surface, which can attract tobacco particles to the outer wall of the heating needle through magnetic attraction. The magnetic energy product of the permanent magnetic material is selected to be about 45 MGOe (magnetic energy product unit) of neodymium iron boron, which can generate sufficient magnetic force to attract tobacco particles, but will not be too strong to cause difficulty in moving the particles.

[0087] 3. Heating and smoking process

[0088] When the user inserts the granular cigarette filled with magnetic tobacco particles into the heating device, the heating needle is inserted through the center of the cigarette to the inside of the cigarette. Because the heating needle is embedded with a permanent magnetic material on the outside, the magnetic tobacco particles in the cigarette are quickly attracted and attached to the outer wall of the heating needle under the action of magnetic force. The magnetic effect ensures that the particles can be closely arranged on the surface of the heating body, without the need for additional compression devices, thereby achieving uniform distribution of the particles.

[0089] After starting the heating device, the heating needle begins to heat up rapidly, and the heat is conducted through the surface of the heating needle to the attached tobacco particles. Because the particles are closely attached to the surface of the heating needle, the heat can be evenly transmitted to each particle, ensuring effective heating of the inside of the particles. During the heating process, the smoke components in the particles are fully released, producing consistent and uniform smoke effect. At the same time, since the "gear part" in the cigarette is removed, the "gear part" significantly reduces the trapping effect of aerosol, increasing the release efficiency of aerosol.

Claims

1. A heated tobacco smoking article, characterized by, The heating cigarette apparatus comprises a cigarette accommodating cavity and a magnetic attraction element; The magnetic attraction element is located in the cigarette accommodating cavity or surrounds the periphery of the cigarette accommodating cavity. The magnetic attraction element is a permanent magnet or a coil generating a magnetic field by being energized.

2. The heated cigarette smoking set according to claim 1, characterized in that, When the magnetic attraction element is located in the cigarette accommodating cavity: A long strip structure is arranged in the cigarette accommodating cavity along the axial direction of the cigarette accommodating cavity. The long strip structure is the magnetic attraction element or contains the magnetic attraction element which is located on the surface or inside of the long strip structure.

3. The heated cigarette smoking set according to claim 1, characterized in that, The heating cigarette apparatus comprises a tubular element; The cigarette accommodating cavity is an internal hollow part of the tubular element; The tubular element is the magnetic attraction element or contains the magnetic attraction element which is located on the surface or inside of the tubular element.

4. The heated cigarette smoking set according to claim 2, characterized in that, The long strip structure has a heating function; Or the long strip structure does not have a heating function, and the heating cigarette apparatus has a heating element.

5. The heated cigarette smoking set according to claim 3, characterized in that, The tubular element has a heating function; Or the tubular element does not have a heating function, and the heating cigarette apparatus has a heating element.

6. A heat-not-burn cigarette, characterized by The heating cigarette comprises a smoking segment, and the smoking segment contains magnetic smoking particles; The distal lip end of the smoking segment has a blocking element to block the magnetic smoking particles, and the proximal lip end of the smoking segment does not have a particle blocking element.

7. A heated tobacco system, comprising: The heating cigarette system comprises the heating cigarette apparatus of any one of claims 1-5 and a heating cigarette; The heating cigarette comprises a smoking segment, and the smoking segment contains magnetic smoking particles; The smoking segment is located in the cigarette accommodating cavity of the heating cigarette, and a plurality of magnetic smoking particles are attracted to the magnetic attraction element around the magnetic attraction element and remain integrated.

8. The heated cigarette system according to claim 7, wherein, The distal lip end of the smoking segment has a blocking element to block the magnetic smoking particles, and the proximal lip end of the smoking segment does not have a particle blocking element.

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