Induction heating aerosol generating device and system thereof
By employing two-stage heating control and induction heating technology, the problems of moisture absorption by the atomizing agent and flavor evaporation in heated cigarettes have been solved, achieving uniform release of smoke and aroma and improving the smoking experience of heated cigarettes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2026-03-19
- Publication Date
- 2026-04-17
AI Technical Summary
Existing heated cigarette technology suffers from problems such as moisture absorption of the atomizing agent leading to cigarette quality issues and loss of flavorings due to volatilization, resulting in uneven smoke volume and aroma. Furthermore, the uneven release of nicotine in induction-heated cigarettes affects the smoking experience.
A two-stage heating control is adopted, which independently heats the liquid phase and solid phase smoke generation sections through different heating control principles and logics. The temperature of the liquid phase smoke generation section is controlled at 100-150℃ and the temperature of the solid phase smoke generation section is controlled at 200-300℃ by induction heating. Combined with airflow and temperature sensors, uniform heating and fragrance release are achieved.
It achieves uniform release of smoke and flavoring, avoids moisture absorption of the atomizing agent and loss of flavoring, and improves the smoking experience and aroma consistency of heated cigarettes.
Smart Images
Figure CN121867462A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of induction heating cigarettes, specifically relating to an induction heating aerosol generating device and system. Background Technology
[0002] The tobacco sheets used in the smoking section of conventional heated cigarettes typically contain atomizing agents (propylene glycol, glycerol, etc.) and flavorings. To ensure consumers experience a sufficiently strong vapor production, a significant amount of atomizing agent is usually added to the tobacco sheets. However, excessive atomizing agent can cause the tobacco sheets to absorb moisture during storage. Furthermore, the flavorings added to the initial raw materials of the tobacco sheets typically evaporate in large quantities during the drying process, which is detrimental to cost control in heated cigarette production. Current technologies commonly employ the introduction of flavor capsules or flavoring during the cooling stage to enhance the user's aroma experience.
[0003] In the field of heated cigarettes, the smoke-generating section typically uses tobacco sheets as a carrier, and the release of visible smoke and characteristic aroma is achieved by adding external atomizing agents (polyols such as propylene glycol and glycerol) and flavorings. However, existing technologies present two long-standing contradictions: On the one hand, to ensure that consumers can instantly obtain sufficient vapor volume when inhaling, the total amount of atomizing agent must be increased to 15% to 25% of the dry weight of the sheet during the sheet forming stage. Such a high proportion of polyols is extremely prone to absorbing moisture and becoming damp during subsequent storage and transportation, leading to increased water activity of the sheet, pressure drop drift of the cigarette, increased void ratio, and even mold growth. On the other hand, the sheet needs to undergo hot air treatment at temperatures above 120°C during drying and other processes. During this stage, most of the volatile flavorings (such as low-boiling-point alcohols, aldehydes, and esters) are carried away with the moisture, with an actual retention rate of less than 30%. Companies have to compensate for the loss of flavor through secondary flavoring (flavoring of capsules, incense sticks, incense cords, and flavoring of cooling granules). These additional processes not only increase material and process costs but also bring new problems such as poor consistency of capsule crushing force, delayed flavor release, or localized excessive concentration. At the same time, the liquid after the capsule breaks may migrate to the outer layer of the filter, affecting the appearance and consumer experience.
[0004] In addition, for induction-heated cigarettes, the sensor can quickly heat up during the preheating process through induction heating. However, due to the limited contact area between the sensor and the loose tobacco material, the smoke-generating agent (excluding nicotine) on the surface of the tobacco material is rapidly volatilized, while the nicotine component in the tobacco has not yet been released, resulting in an overly strong aroma and insufficient strength in the first puff of the electromagnetically heated cigarette.
[0005] Meanwhile, the rapid heating of induction-heated cigarettes causes the added tobacco flavorings to be released at an accelerated rate, resulting in poor aroma consistency throughout the heating process and failing to achieve the intended sensory effect.
[0006] Therefore, the industry urgently needs a cigarette structure design that can ensure high smoke volume without increasing the initial atomizing agent ratio in the thin film, while preventing the loss of flavoring due to high-temperature drying and ensuring uniform and coordinated release throughout the smoking process. This would solve the moisture absorption risks caused by high atomizing agent ratios and the cost and experience defects caused by high flavoring usage in the thin film. Summary of the Invention
[0007] The purpose of this invention is to solve the problem of uniform release of atomizing agents, flavorings, nicotine, etc., throughout the entire process of smoking electromagnetically heated cigarettes. A first aspect provides an induction-heated aerosol generating device, which can heat an aerosol generating product through induction heating to produce an aerosol for user inhalation. The device includes: a housing defining a heating chamber for simultaneously receiving a liquid-phase smoke-generating section and a solid-phase smoke-generating section of the aerosol generating product; an inductor including an axially distributed first induction coil and a second induction coil, the first induction coil being coupled to a first sensor in the liquid-phase smoke-generating section, and the second induction coil being coupled to a second sensor in the solid-phase smoke-generating section; a power supply connected to the first and second induction coils to provide energy to generate a fluctuating electromagnetic field; and a controller controlling the conduction of a first control loop and / or a second control loop. When the first control loop is active, the power supply provides energy to the first induction coil and heats the liquid-phase smoke-generating section to produce smoke; when the second control loop is active, the power supply provides energy to the second induction coil and heats the liquid-phase smoke-generating section to produce smoke.
[0008] Furthermore, the controller controls the first control loop to be turned on or off based on a first electrical signal related to the user's suction action.
[0009] Furthermore, the induction heating aerosol generating device includes a first sensor, which is used to measure changes in airflow or air pressure in the heating chamber.
[0010] Furthermore, the liquid phase smoke-generating section is impregnated or sprayed with a first smoke-generating agent; or further, the liquid phase smoke-generating section contains microcapsules containing the first smoke-generating agent; further, the boiling point of the first smoke-generating agent is between 100-120℃ or 120-150℃.
[0011] Furthermore, the first control loop is configured to control the heating temperature of the liquid phase smoke generation section between 100-120°C or 120-150°C by switching it on and off.
[0012] Furthermore, the first smoke-generating agent includes nicotine or nicotine salts; the first smoke-generating agent also includes a smoke-resistant flavoring.
[0013] Furthermore, the controller controls the second control loop to be turned on or off based on a second electrical signal related to the temperature of the solid phase smoke generation section.
[0014] Furthermore, the solid-phase smoke-generating section comprises tobacco particles, tobacco sheets, and / or shredded tobacco.
[0015] Furthermore, the second control loop is configured to control the heating temperature of the solid-phase smoke generation section between 200-250°C or 250-300°C by switching it on and off.
[0016] Secondly, an induction heating aerosol generation system is provided, including any one of the above-mentioned induction heating aerosol generation devices and aerosol generation products.
[0017] Among them, aerosol-generating products are smoking products, including aerosol-forming matrix, which generates aerosols through heating that can be directly inhaled into the lungs of the user through the user's mouth.
[0018] Preferably, the aerosol forming matrix in the liquid phase smoke-generating section is primarily a liquid-based first smoke-generating agent. Preferably, the first smoke-generating agent comprises nicotine or a nicotine salt. The solid aerosol forming matrix may also be contained in one or more capsules, which may melt during heating of the solid aerosol forming matrix or be broken by the consumer before use.
[0019] Preferably, the aerosol-forming matrix in the solid-phase smoke-generating section is primarily a solid aerosol-forming matrix, particularly comprising tobacco. This includes one or more of the following: powder, granules, pellets, fragments, strips, bars, or sheets; and contains one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco ribs, flat tobacco, and homogenized tobacco. For example, tobacco sheets, tobacco granules, or shredded natural tobacco or tobacco stems, particularly those known as homogenized tobacco sheets, may be included. Alternatively or additionally, aerosol-forming materials without tobacco may be included, such as paper sheets comprising nicotine salts and aerosol-forming agents. Alternatively, the solid aerosol-forming matrix may further comprise a second smoke-generating agent to enhance the smoke-generating effect.
[0020] In this patent, homogeneous tobacco material refers to a material formed by aggregating particulate tobacco.
[0021] The aerosol forming matrix can be in the form of a plug, which includes an aerosol forming material defined by paper or other packaging material. In the case where the aerosol forming matrix is in the form of a plug, an integral plug comprising any packaging paper is considered to be an aerosol forming matrix.
[0022] Preferably, the aerosol-forming matrix includes a plug comprising an aggregate of homogeneous tobacco material or other aerosol-forming material surrounded by packaging. Preferably, the receptor is located within the plug in direct contact with the aerosol-forming material.
[0023] In this patent, the term "smoke-generating agent," i.e., aerosol forming agent, is used to describe any suitable known compound or mixture of compounds that promotes aerosol formation in use and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating article. Suitable aerosol forming agents are known in the art and include, but are not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol forming agents are polyols or mixtures thereof, such as propylene glycol, triethylene glycol, 1,3-butanediol, and most preferably glycerol. The aerosol forming matrix may comprise a single aerosol forming agent. Alternatively, the aerosol forming matrix may comprise a combination of two or more aerosol forming agents.
[0024] Preferably, the aerosol forming matrix has an aerosol forming agent content of more than 5% by dry weight. More preferably, the aerosol forming matrix may have an aerosol forming agent content between about 5% and about 30% by dry weight. In one embodiment, the aerosol forming matrix has an aerosol forming agent content of about 20% by dry weight.
[0025] Aerosol forming matrices, including those used to homogenize tobacco sheets in aerosol-generating articles, can be manufactured using existing manufacturing processes in the field, such as rolling, slurry, and papermaking.
[0026] Tobacco flavorings, also known as "flavoring agents," "spices," and "food flavorings," refer to materials that can be used to create a desired taste or aroma. Preferred tobacco flavorings include plant extracts such as licorice extract, hydrangea, Japanese white magnolia leaf, white chamomile, fenugreek, clove, menthol, Japanese peppermint, anise seed, cinnamon, vanilla, wintergreen oil, cherry, berries, peach, apple, dramboui, bourbon, Scotch whisky, spearmint, peppermint, lavender, cardamom, celery, bitter orange, nutmeg, sandalwood, bergamot, geranium, honey flavoring, rose oil, vanilla, lemon oil, etc. Orange oil, cinnamon bark, fennel, kronac, jasmine, ylang-ylang, red root grass, fennel, saffron, ginger, anise, coriander, coffee, or peppermint oil from any species of the peppermint family), flavor masking agents, bitter receptor site blockers, receptor site enhancers, sweeteners (such as sucralose, butyrazosulfanilamide, aspartate, saccharin, cyclosulfonates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives—such as chlorophyll, minerals, botanicals, or breath fresheners. These can be imitations, synthetics, natural ingredients, or mixtures thereof.
[0027] Preferably, the aerosol forming article includes a liquid-phase smoke generation section, a solid-phase smoke generation section, a support section, an aerosol cooling section, and a filtration section. Each component is surrounded by an outer packaging material, which is formed of any suitable material or combination of materials, with cigarette paper being the preferred outer packaging paper.
[0028] An aerosol generating device is used to describe an apparatus that interacts with an aerosol-forming matrix of an aerosol-generating article to generate an aerosol. Preferably, the aerosol generating device is a smoking device that interacts with the aerosol-generating matrix of the aerosol-generating article to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. The aerosol generating device may be a fixator for a smoking article.
[0029] A sensor is a material that can convert electromagnetic energy into heat. When placed in a fluctuating electromagnetic field, the eddy currents induced in the sensor cause it to heat up. In aerosol-forming articles, the sensor is positioned in thermal contact with the aerosol-forming matrix, which is then heated by the sensor.
[0030] The aerosol generating article is designed to engage with an electrically operated aerosol generating device, including an induction heating source. The induction heating source or sensor generates a fluctuating electromagnetic field to heat a sensor located within the fluctuating electromagnetic field. In use, the aerosol generating article engages with the aerosol generating device such that the sensor is located within the fluctuating electromagnetic field generated by the sensor.
[0031] The length of the receptor is greater than its width or thickness, for example, more than twice its width or thickness. Therefore, the receptor can be described as an elongated receptor. The receptor can be arranged generally longitudinally within the aerosol-generating matrix. This means that the length of the elongated receptor is arranged approximately parallel to the longitudinal direction of the aerosol-generating matrix, for example, within plus or minus 10 degrees. In a preferred embodiment, the elongated receptor can be located at a radial center position within the aerosol-generating matrix and extend along the longitudinal axis of the aerosol-generating matrix.
[0032] The receptor is preferably needle-shaped, strip-shaped, or leaf-shaped. Preferably, the receptor has a length of 5 mm to 15 mm, for example, between 6 mm and 12 mm or between 8 mm and 10 mm. Preferably, the elongated receptor has a length substantially the same as the aerosol-forming matrix. Preferably, the receptor can have a width of 1 mm to 5 mm and a thickness of 0.01 mm to 2 mm, for example, 0.5 mm to 2 mm. A preferred embodiment may have a thickness between 10 micrometers and 500 micrometers, more preferably between 10 micrometers and 100 micrometers. If the receptor has a constant cross-section, such as a circular cross-section, it has a preferred width or diameter of 1 mm to 5 mm.
[0033] The sensor can be made of any material capable of being heated inductively to a temperature sufficient to generate an aerosol matrix. Preferred sensors include metals or carbon. Preferred sensors may include ferromagnetic materials, such as ferrite, ferromagnetic steel, or stainless steel. Suitable sensors may be aluminum or may include aluminum. Preferred sensors may be made of 400 series stainless steel, such as grade 410, 420, or 430 stainless steel. Different materials will consume different amounts of energy when placed in an electromagnetic field with similar frequency and field strength. Therefore, parameters of the sensor, such as material type, length, width, and thickness, can be varied within a known electromagnetic field to provide the desired energy consumption.
[0034] The sensor may have an outer protective layer, such as a ceramic or glass protective layer encapsulating the elongated sensor, thereby forming a complete heating element. The sensor may include a protective coating formed of glass, ceramic, or inert metal on the core of the sensor material.
[0035] When the sensor is heated, the smoke-generating section is heated and forms an aerosol. The smoke-generating section may contain one sensor; alternatively, the liquid-phase smoke-generating section and the solid-phase smoke-generating section may contain multiple sensors. The sensor may be elongated, granular, mesh-like, radial, tubular, hourglass-shaped, spiral, etc.
[0036] The aerosol generating device can generate a fluctuating electromagnetic field between approximately 1 MHz and 30 MHz, for example, between 2 MHz and 10 MHz, or for example, between 5 MHz and 7 MHz, through the induction coil of the induction emitter.
[0037] Preferably, the aerosol generating device is capable of generating a wave electromagnetic field with a field strength (H field) between 1 kA / m and 5 kA / m, for example between 2 kA / m and 3 kA / m, for example about 2.5 kA / m.
[0038] The induction coil material should be a material with good conductivity, such as metal; in addition, in this patent, the induction coil material should also have good elastic deformation ability, and can be spring steel, gold, silver or other metals.
[0039] The movable coil support and fixed coil support of the induction coil can be connected to the induction coil body through methods such as integral molding, welding, or clamping. The displacement of the movable coil support can be achieved manually or by motor drive.
[0040] An aerosol generator is a portable or handheld device that can be comfortably held between the fingers of one hand. The shape of the aerosol generator is generally cylindrical. The aerosol generator can have a length between approximately 70 mm and approximately 120 mm.
[0041] The power source can be any suitable power source, such as a DC voltage source, like a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source can be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.
[0042] The control element can be a simple switch. Alternatively, the control element can be a circuit and may include one or more microprocessors or microcontrollers.
[0043] An aerosol generation system may include an aerosol generation device and one or more aerosol generation articles, wherein the aerosol generation device is configured with a corresponding number of heating chambers to contain the aerosol generation articles.
[0044] This invention designs a two-stage electromagnetic heating smoking device, independently heating the liquid-phase and solid-phase smoke-generating sections to different smoke-generating temperatures using different heating control principles and logics, while simultaneously delivering flavorings and nicotine. For the liquid-phase smoke-generating section, since most of the smoke-generating components are fluid, when heating, the smoke-generating agent around the sensor reaches near its boiling point and evaporates, while surrounding smoke-generating components replenish and continue evaporating, thus automatically maintaining the temperature near the boiling point. The device detects changes in airflow to sense the user's inhalation action; for example, an airflow sensor is placed at the air inlet of the heating chamber. This allows for rapid smoke generation using the principle of induction heating, while also avoiding rapid consumption due to prolonged heating. For the solid-phase smoke-generating section, since most of the smoke-generating components are not fluid, the area around the sensor continuously heats up during heating, requiring temperature control. This can be achieved by placing a temperature sensor around the solid-phase smoke-generating section, or by using changes in apparent resistance, current, or inductance in the heating circuit caused by changes in the magnetic field when the sensor reaches the Curie temperature to determine the temperature, thus achieving optimal heating results.
[0045] The specific advantages of this invention are mainly reflected in the following aspects: 1. During the preheating stage, the first smoke-generating agent in the liquid phase smoke-generating section rapidly generates smoke and transfers nicotine; 2. Achieve uniform and sufficient heating and smoke generation in the smoke-generating section during the heating stage; 3. Add fragrance to heated cigarettes to achieve a stable release of flavorings and avoid the problem of poor consistency of aroma with each puff; 4. Increase the overall atomization amount of heated cigarettes. Attached Figure Description
[0046] The above description of the present invention 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 solutions.
[0047] Figure 1This is a cross-sectional schematic diagram of the aerosol-generated product of the present invention; Figure 2 This is a cross-sectional schematic diagram of the aerosol generation system of the present invention.
[0048] The reference numerals in the attached figures are explained as follows: Aerosol-generated products: 100 Solid phase smoke generation section: 110 Support segment: 120 Cooling section: 130 Filtering section: 140 Liquid phase fuming section: 150 Receptors: 160 First receptor segment: 161 Second receptor segment: 162 Package: 170 Aluminum foil: 171 Formed paper: 172 Tipping paper: 173 Aerosol generating device: 200 Power supply and control components: 210 Heating chamber: 220 Induction coil: 230 First induction coil: 231 Second induction coil: 232 Detailed Implementation
[0049] The following detailed description of the features and advantages of this application is sufficient to enable any person skilled in the art to understand the technical content of this application and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the related objectives and advantages of this application.
[0050] The invention will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of the invention. It will be apparent to those skilled in the art that the invention can also be used in a variety of other applications.
[0051] In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined to have the following meanings: The singular forms “a” and “the” include their corresponding plural forms. “At least one” means one or more, and “more” means two or more. “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.
[0052] All figures used to represent component amounts, properties (e.g., molecular weight), reaction conditions, etc., should be considered to be modified in all cases by the terms "within the unavoidable margin of error" or "about". Therefore, the numerical values set forth herein are approximate and may vary depending on the desired properties sought to be obtained by the present invention. The principles of equivalents, which are applied to a minimum and not intended to limit the scope of the claims, should be applied, for example, each value should be interpreted at least according to the reported significant digits and by applying conventional rounding techniques.
[0053] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.
[0054] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0055] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.
[0056] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.
[0057] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.
[0058] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0059] Based on consumer usage habits, the direction closer to the consumer's mouth during suction is referred to as the proximal end in this article, while the direction farther away from the consumer's mouth is referred to as the proximal end in this article.
[0060] like Figure 1 As shown, the aerosol generating product 100 is typically in the form of a cigarette, including a liquid phase smoke generating section 150, a solid phase smoke generating section 110, a support section 120, a cooling section 130, a filter section 140, and a sensor 160, which are arranged from the far end to the near end.
[0061] The liquid-phase smoke-generating section 150 and the solid-phase smoke-generating section 110 together can be referred to as a composite smoke-generating section. The receptor 160 extends from the interior of the liquid-phase smoke-generating section 150 to the interior of the solid-phase smoke-generating section 110. The liquid-phase smoke-generating section 150, as an aroma-enhancing smoke-generating section, can form an aerosol containing flavor molecules, while the solid-phase smoke-generating section 110, as a tobacco smoke-generating section, can form an aerosol containing nicotine. Both are rich in atomizing agents. The atomizing agent contained in the former supplements the atomizing agent in the latter, providing a sufficient amount of smoke for the user experience. The flavor molecules contained in the former also enhance the overall aroma experience.
[0062] In one embodiment, the liquid-phase smoke-generating section 150 is composed of a single smoke-generating component, into which a first sensor segment 161 of the sensor 160 is inserted. In another embodiment, the smoke-generating component is a 3D porous material, which can be manufactured using known materials and processes, specifically including porous ceramics, porous sponges, porous foam polymers, porous foam metals, or plant-based fasteners. The plant-based fasteners can be molded from a paste-like mixture of plant (especially tobacco) raw material powder, binder or starch, smoke-generating agent, and water, thereby forming through-holes for gas flow. In another embodiment, the smoke-generating component is a 2D material aggregate, which is formed from one or more layers of sheets by winding, folding, compressing, shrinking, wrinkling, or curling. The sheets include paper materials, non-woven fabrics, or polymer films, and may also have permeable pores formed on them. In one specific embodiment, the smoke-generating component is a 1D material aggregate composed of cellulose acetate fiber, polyester fiber, polyolefin fiber, polyethylene fiber, polyester fiber, polypropylene fiber, nylon fiber, polylactic acid fiber, or plant fiber. Known plasticizers or adhesives may be appropriately added between the fibers for shaping.
[0063] In one embodiment, the smoke-generating component is impregnated or sprayed with a first smoke-generating agent. In another embodiment, microcapsules containing the first smoke-generating agent are embedded in or between the smoke-generating components. The first smoke-generating agent can be a common e-cigarette liquid. Since most smoke-generating component materials, except for plant-based components, do not contain sufficient amounts of nicotine, the first smoke-generating agent may also contain nicotine or nicotine salts.
[0064] Because the first smoke-generating agent in the liquid phase smoke-generating section 150 has good fluidity, it can be evenly distributed on the outer surface of the first sensor section 161. When the first sensor section 161 is heated and smokes, the other parts of the first smoke-generating agent can be quickly replenished to the surface of the first sensor section 161 and the heating temperature is kept near the boiling point.
[0065] The solid-phase smoking section 110 is mainly composed of reconstituted tobacco sheets, reconstituted tobacco particles, or shredded tobacco as smoking monomers, and can also be called a tobacco section. A second smoking agent is usually added to the smoking monomer during the manufacturing process. Since the raw materials for the smoking monomer contain tobacco components, the second smoking agent usually does not contain nicotine or nicotine salts.
[0066] A second sensor segment 162 of the sensor 160 is inserted into the solid-phase smoke-generating section 110. In the loose smoke-generating monomer, only a portion is in thermal contact with the sensor, resulting in a limited overall contact area. Furthermore, the second smoke-generating agent in the solid-phase smoke-generating section has very low fluidity, which easily leads to localized overheating in existing technologies, causing uncontrollable uniformity and coordination of the smoke. In this invention, the second sensor segment 162 is integrally formed with or in thermal contact with the first sensor segment 161. The heat energy from localized overheating of the second sensor segment 162 can be conducted to the first sensor segment 161 and cooled by the volatilization of the more fluid first smoke-generating agent.
[0067] Furthermore, the support section 120, cooling section 130, and filter section 140 together can be referred to as a filter rod section. In another specific embodiment, the cigarette filter rod section can be a combination of a hollow section and a filter section, or a combination of a cooling component and a filter section.
[0068] The aforementioned components can be fixed and / or connected via specific layers in the wrapping component 170. For example, the smoke-generating section can be wrapped with aluminum foil 171, aluminum foil, or cigarette paper. Using aluminum foil 171 or aluminum foil can better coordinate the temperature field distribution between the liquid-phase smoke-generating section 150 and the solid-phase smoke-generating section 110. The support section 120, cooling section 130, and filter section 140 can be wrapped with forming paper. The components can also be connected to each other using splicing paper 173.
[0069] like Figure 2 As shown, the electromagnetic aerosol generating apparatus 200 is arranged to receive an aerosol generating article 100 that is electromagnetically heated to generate aerosols in the liquid phase smoke generation section 150 and the solid phase smoke generation section 110 of the aerosol generating article 100. The aerosol generating apparatus 200 includes a housing, a power supply and control assembly 210, a heating chamber 220 for receiving the liquid phase smoke generation section 150 and the solid phase smoke generation section 110, and an induction coil 230 capable of generating electromagnetic fields to heat a sensor 160.
[0070] The induction coil 230 includes a first induction coil 231 and a second induction coil 232 that can be controlled by the control component. The control component controls the conduction of the first control circuit and / or the second control circuit. When the first control circuit is on, the power supply provides energy to the first induction coil 231 and heats the liquid phase smoke generation section 150 to generate smoke. When the second control circuit is on, the power supply provides energy to the second induction coil 232 and heats the solid phase smoke generation section 110 to generate smoke.
[0071] The first induction coil 231 can be coupled to the first sensor section 161. When the first sensor measures a change in airflow or pressure in the heating chamber caused by a user's inhalation, the controller starts to heat the liquid phase smoke generation section 150, so that a portion of the first smoke generation agent near the first sensor section 161 is rapidly heated to a temperature near the boiling point, that is, the liquid phase smoke generation section 150 achieves a first heating temperature of 100℃-150℃, thereby efficiently forming an aerosol containing fragrance molecules.
[0072] The second induction coil 232 can be coupled to the second sensor section 162, and can heat the solid-phase smoke-generating section 110 with different power or different temperature curves. Typically, the heating temperature of the solid-phase smoke-generating section 110 can be controlled at a second heating temperature of 200℃-300℃ using a temperature sensor, where the tobacco components can efficiently form nicotine-containing aerosols.
[0073] In addition, depending on different needs, users can selectively turn on or off the heating function of the liquid phase smoke generation section 150 or the solid phase smoke generation section 110 to obtain different suction experiences.
[0074] In another specific embodiment, the induction coil 230 is a single coil, and the induction coil 230 is coupled together with the first sensor segment 161 and the second sensor segment 162 with different magnetic permeabilities, thereby generating different magnitudes of induced current and heating temperature under the same magnetic field change rate, so that the liquid phase smoke generation section 150 and the solid phase smoke generation section 110 are simultaneously maintained at the ideal heating temperature.
[0075] In this specification, references to "an embodiment" or "a specific implementation" mean that a particular feature, structure, or characteristic described in connection with that embodiment / specific implementation is included in at least one embodiment / specific implementation of the invention. Therefore, the phrase "in one embodiment / specific implementation" appearing in various places in this specification does not necessarily refer to the same embodiment / setting, but rather to potentially different embodiments. Furthermore, specific features, structures, or characteristics may be combined in one or more embodiments / settings in any suitable manner, as will be apparent to those skilled in the art from this disclosure.
[0076] Similarly, it should be understood that in the above description of exemplary embodiments / specific implementations of the invention, various features of the invention are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various aspects of the invention. However, the method of description in this patent should not be construed as reflecting an intention that the claimed features of the invention are more than those expressly stated in each claim, except where explicitly stated otherwise or in obvious technical contradiction or exclusion. Rather, the inventive aspect reflected in the claims lies in not all the features of a single foregoing disclosed embodiment / specific implementation. Therefore, the claims following the detailed description are expressly incorporated herein by reference, each claim existing independently as a separate embodiment / specific implementation of the invention.
[0077] Furthermore, while some embodiments / specific implementations described herein include, but are not limited to, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to be within the scope of the invention and form different embodiments / specific implementations, as will be understood by those skilled in the art. For example, in the following claims, embodiments / specific implementations of any claim can be used in any combination.
[0078] The terms and expressions used in this specification are for illustrative purposes and not for limitation. The use of these terms and expressions is not intended to exclude any equivalents of the features or portions thereof shown and described, but rather to allow for the understanding that various modifications may be made within the scope of the invention.
[0079] Therefore, it should be understood that although the invention has been specifically disclosed through preferred embodiments, exemplary embodiments and optional features, those skilled in the art may take variations or modifications of the concepts disclosed herein, and such variations and modifications are therefore considered to be within the scope of the invention as defined by the appended claims.
[0080] The specific embodiments given in this specification are examples of useful implementations of the present invention. It will be apparent to those skilled in the art that the present invention can be implemented using many variations of the devices, device components, and method steps disclosed in this specification.
[0081] The foregoing description of specific embodiments fully discloses the general features of the present invention, enabling others to easily modify and / or adapt such specific embodiments for various applications by applying knowledge within the scope of the art, without conducting excessive experimentation and without departing from the general concept of the present invention.
[0082] Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and is not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.
[0083] Furthermore, the scope of the invention should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.
Claims
1. An induction heating aerosol generating device capable of heating an aerosol generating article by means of induction heating to generate an aerosol for a user to draw, characterized in that, The induction heating aerosol generating device includes: The housing defines a heating chamber for simultaneously receiving the liquid-phase smoke-generating section and the solid-phase smoke-generating section of the aerosol-generating product; An inductor includes a first induction coil and a second induction coil distributed axially. The first induction coil can be coupled to a first sensor in the liquid phase smoke generation section, and the second induction coil can be coupled to a second sensor in the solid phase smoke generation section. A power source can be connected to the first induction coil and the second induction coil to provide energy to generate a fluctuating electromagnetic field; The controller controls the conduction of a first control loop and / or a second control loop. When the first control loop is on, the power supply provides energy to the first induction coil and heats the liquid phase smoke generation section to generate smoke. When the second control loop is on, the power supply provides energy to the second induction coil and heats the solid phase smoke generation section to generate smoke.
2. The induction heating aerosol generating device of claim 1, wherein, The controller controls the first control loop to be turned on or off based on a first electrical signal related to the user's suction action.
3. An induction heating aerosol-generating device according to claim 2, wherein The induction heating aerosol generating device includes a first sensor, which is used to measure changes in airflow or air pressure in the heating chamber.
4. The induction heating aerosol generating device according to claim 2, characterized in that, The liquid phase smoke-generating section is impregnated or sprayed with a first smoke-generating agent; or The liquid phase smoke-generating section contains microcapsules containing a first smoke-generating agent; The boiling point of the first fumigating agent is between 100-120℃ or 120-150℃.
5. An induction heating aerosol-generating device according to claim 4, wherein The first control loop is configured to control the heating temperature of the liquid phase smoke generation section between 100-120°C or 120-150°C by switching it on and off.
6. The induction heating aerosol generating device of claim 4, wherein, The first smoke-generating agent includes nicotine or nicotine salts; the first smoke-generating agent also includes a smoke-resistant flavoring.
7. The induction heating aerosol generating device of claim 1, wherein, The controller controls the second control loop to be turned on or off based on a second electrical signal related to the temperature of the solid phase smoke generation section.
8. The induction heating aerosol generating apparatus according to claim 7, characterized in that, The solid-phase smoke-generating section comprises tobacco particles, tobacco sheets, and / or shredded tobacco.
9. The induction heating aerosol generating apparatus according to claim 7, characterized in that, The second control loop is configured to control the heating temperature of the solid-phase smoke generation section between 200-250°C or 250-300°C by switching it on and off.
10. An induction heating aerosol generation system, comprising the induction heating aerosol generation apparatus as described in any one of claims 1 to 9, and further comprising an aerosol generation article.