Granular heating cigarette product containing inductor and preparation method

Abstract

A granular heating cigarette product containing an inductor, comprising a hollow outer cigarette tube (1). A blocking unit (2) and a filtering unit (3) are respectively provided at two ends of an internal channel of the outer cigarette tube (1); an aerosol-generating granule unit (4) and an induction heating unit (5) are provided in the middle section of the internal channel of the outer cigarette tube (1); two ends of the aerosol-generating granule unit (4) are respectively blocked by means of the induction heating unit (5) and the blocking unit (2); the induction heating unit (5) comprises an inductor base (6) and an induction heater (7) that are connected to each other; and the induction heater (7) is embedded into the aerosol-generating granule unit (4). Also disclosed is a preparation method for a heating cigarette product. Compared with the prior art, the present invention has the following advantages: the aerosol is sufficiently released, the aerosol is uniform and consistent in every puff, tobacco granules do not fall off, the cigarette can be directly pulled out, and the manufacturing process is simple.

Description

A particle-type heated cigarette product containing a sensor and a preparation method thereof Technical Field

[0001] The present invention relates to the technical field of tobacco-heated cigarette products, and in particular to a particle-type heated cigarette product containing a sensor and a preparation method thereof. Background Art

[0002] The primary advantage of heated tobacco products is their ability to effectively reduce known harmful smoke components produced by the combustion and pyrolysis of traditional cigarettes. Electric heated tobacco products are a rapidly developing new tobacco product category, categorized by heating technology, including resistance, electromagnetic, infrared, and microwave. Electromagnetic heated tobacco products, due to their high energy conversion efficiency, rapid heating, and contactless energy transmission, have become a hot research area for tobacco companies. Currently, most electromagnetic heated tobacco products under research and development incorporate heating elements within the heated smoking device. To smoke these electromagnetic heated tobacco products, the heating element must be inserted into the heated cigarette's smoke-releasing medium and then separated after puffing. This poses challenges such as the heating element adhering to the smoke-releasing medium, requiring cleaning, and can easily lead to excessive heating of the heated smoking device's housing.

[0003] Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a granular heated cigarette product containing a sensor and a preparation method, so as to achieve the goals of sufficient smoke release, uniform smoke from puff to puff, no falling tobacco particles, direct pulling out of the cigarette, and simple production process.

[0005] The present invention is achieved through the following technical solutions:

[0006] A particle-type heated cigarette product containing an inductor comprises a hollow cigarette outer tube, wherein a blocking unit and a filtering unit are respectively provided at both ends of the internal channel of the cigarette outer tube, and a smoke-releasing particle unit and an induction heating unit are provided in the middle section of the internal channel of the cigarette outer tube. The two ends of the smoke-releasing particle unit are respectively blocked by the induction heating unit and the blocking unit. The induction heating unit comprises an interconnected inductor base and an induction heater, and the induction heater is embedded in the smoke-releasing particle unit.

[0007] As a preferred solution for the above-mentioned heated cigarette product, a plurality of smoke channels are opened on the sensor base, the periphery of the sensor base coincides with the inner wall of the outer tube of the cigarette, and one end of the smoke-releasing particle unit is blocked by the sensor base.

[0008] As a preferred solution for the above-mentioned heated tobacco product, the induction heater is made of electromagnetic induction heating material.

[0009] As a preferred solution for the above-mentioned heated cigarette product, a gap is left between the induction heating unit and the filter unit in the internal channel of the outer tube of the cigarette, and a functional unit is arranged in the gap.

[0010] As a preferred embodiment of the above-mentioned heated cigarette product, the functional unit is a temperature-reducing and flavor-enhancing unit.

[0011] As a preferred embodiment of the above-mentioned heated cigarette product, the functional unit is made by mixing at least one of popping beads, slow-release phase change material, fragrance thread, fragrance sachet, cooling particles and filter material.

[0012] As a preferred embodiment of the above-mentioned heated cigarette product, the filter unit is made of filter material alone or a mixture of at least one of popping beads, slow-release phase change material, fragrance thread, fragrance sachet, cooling particles and filter material.

[0013] As a preferred embodiment of the above-mentioned heated cigarette product, the outer tube of the cigarette is made of any one of pulp fibers, non-tobacco plant fibers, wood pulp fibers, bamboo pulp fibers, and tobacco materials, or a mixture of at least two of them.

[0014] As a preferred embodiment of the above-mentioned heated cigarette product, the length of the blocking unit is 1 to 6 mm, the length of the smoke-releasing particle unit is 8 to 15 mm, the length of the sensor base is 2 to 6 mm, the length of the induction heater is 6 to 12 mm, and the length of the filter unit is 4 to 12 mm.

[0015] The present invention also discloses a method for preparing the above-mentioned sensor-containing particle-type heated cigarette product, comprising the following steps:

[0016] Step 1: Prepare the outer tube of the cigarette:

[0017] The outer tube of the cigarette is made of any one of pulp fiber, non-tobacco plant fiber, wood pulp fiber, bamboo pulp fiber, and tobacco material, or a mixture of at least two of them;

[0018] Step 2: Prepare the plugging unit:

[0019] The plugging unit is made of at least one of ceramics, clay, glass, heat-resistant plastic materials, non-inductively heated metals and alloys, pulp fibers, tobacco materials and non-tobacco plant materials, or a mixture of at least two of the following:

[0020] Step 3: Prepare smoke-releasing particle units:

[0021] Pure tobacco particles or mixed particles of tobacco and plant flavorings are formed into quantitative smoke-releasing particle units in a fixed volume or fixed mass manner;

[0022] Step 4: Prepare the induction heating unit:

[0023] The sensor substrate is prepared by using any one of ceramics, clay, glass, non-inductively heated metals and alloys, heat-resistant plastic materials, pulp fibers, tobacco materials, and non-tobacco plant materials, and the induction heater is prepared by using electromagnetic induction heating materials. The induction heater is then fixed on the sensor substrate to form an induction heating unit.

[0024] Step 5: Prepare the filter unit:

[0025] The filter unit having a porous structure is formed by mixing at least one of cellulose, raw materials of smoke-releasing particles, and plant materials, or at least two of them;

[0026] Step 6: Cigarette forming:

[0027] Cut the outer tube of the cigarette, the blocking unit, and the filter unit into specified lengths, then install the blocking unit, the smoke-releasing particle unit, the induction heating unit, and the filter unit into the outer tube of the cigarette, use the induction heating unit and the blocking unit to block the two ends of the smoke-releasing particle unit respectively, and embed the induction heater into the smoke-releasing particle unit.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] 1. The present invention provides a particle-type heated tobacco product containing an inductor. By integrating an induction heating unit into the tobacco product and using it in conjunction with a matching electromagnetic heating smoking device, most of the heat generated by the induction heating unit built into the tobacco product during the smoking process is used to heat the smoke-releasing particle unit. This results in a high heat utilization rate, effectively improving the heating efficiency of the tobacco product, allowing the tobacco product to produce sufficient and uniform smoke, with less heat diffusion outward, significantly reducing the shell temperature of the electromagnetic heating smoking device and the heat-induced impurities in the smoke. After the smoking is completed, the tobacco product can be directly pulled out of the electromagnetic heating smoking device as a whole, without the need for an auxiliary extraction device or cleaning the smoking device, and the appearance of the cigarette remains unchanged. In addition, the induction heating unit built into the tobacco product can serve as both a heating component for heating the smoke-releasing particle unit and a sealing component for sealing one end of the smoke-releasing particle unit, preventing tobacco particles from falling during the smoking process.

[0030] 2. The method for preparing a particle-type heated cigarette product containing an inductor provided by the present invention has a simple preparation process, high production efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a longitudinal sectional view of a cigarette product according to the present invention.

[0032] FIG2 is a perspective view of the induction heating unit of the present invention.

[0033] FIG3 is a graph showing the change in smoke release over puffing time for the samples of the present invention and the control example.

[0034] FIG4 is a graph showing the change in smoke temperature over puffing time for the samples of the present invention and the control example.

[0035] Numbers in the figure: 1 smoke support outer tube, 2 blocking unit, 3 filtering unit, 4 smoke particle release unit, 5 induction heating unit, 6 sensor base, 7 induction heater, 8 smoke channel, 9 gap, 10 functional unit. DETAILED DESCRIPTION

[0036] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process. However, the protection scope of the present invention is not limited to the following embodiment.

[0037] Referring to Figures 1 to 4, this embodiment discloses a particle-type heated cigarette product containing an inductor, comprising a hollow outer tube 1 made of any one of pulp fibers, non-tobacco plant fibers, wood pulp fibers, bamboo pulp fibers, or tobacco materials, or a mixture of at least two. A blocking unit 2 and a filtering unit 3 are provided at each end of the internal channel of the outer tube 1. A smoke-releasing particle unit 4 and an induction heating unit 5 are provided in the middle section of the internal channel of the outer tube 1. The induction heating unit 5 and the blocking unit 2 respectively block the ends of the smoke-releasing particle unit 4. The induction heating unit 5 comprises an interconnected inductor base 6 and an induction heater 7, which is embedded within the smoke-releasing particle unit 4.

[0038] The sensor base 6 is formed with multiple smoke channels 8. The outer periphery of the sensor base 6 matches the inner wall of the cigarette outer tube 1, thereby sealing one end of the smoke-releasing particle unit 4. The induction heater 7 is made of electromagnetic induction heating material and has any shape that can be designed according to different needs. The induction heater 7 extends along the longitudinal axis of the smoke-releasing particle unit 4.

[0039] Within the internal channel of the cigarette outer tube 1, a gap 9 is provided between the induction heating unit 5 and the filter unit 3. A functional unit 10 may be optionally disposed within this gap. Functional unit 10 may be a cooling and aroma enhancement unit, capable of providing cooling and aroma enhancement functions. For example, functional unit 10 may be made by mixing at least one of explosive beads, slow-release phase-change material, fragrance thread, fragrance sachet, cooling particles, and filter material.

[0040] The filter unit 3 is made of filter material alone or is made of a mixture of at least one of explosive beads, slow-release phase change materials, fragrance threads, fragrance sachets, and cooling particles with filter material.

[0041] The length of the blocking unit 2 is 1 to 6 mm, the length of the smoke-releasing particle unit 4 is 8 to 15 mm, the length of the sensor base 6 is 2 to 6 mm, the length of the induction heater 7 is 6 to 12 mm, the length of the functional unit 10 is 4 to 12 mm, and the length of the filter unit 3 is 4 to 12 mm. The outer walls of the blocking unit 2, smoke-releasing particle unit 4, induction heating unit 5, functional unit 10, and filter unit 3 are tightly fitted with the inner wall of the internal channel of the cigarette outer tube 1.

[0042] This embodiment also provides a method for preparing the above-mentioned sensor-containing granular heated cigarette product, comprising the following steps:

[0043] Step 1: Prepare the outer tube of the cigarette 1:

[0044] The cigarette outer tube 1 with a hollow structure is made of any one of pulp fiber, non-tobacco plant fiber, wood pulp fiber, bamboo pulp fiber and tobacco material or a mixture of at least two of them.

[0045] Step 2: Prepare plugging unit 2:

[0046] The sealing unit 2 is made of at least one of ceramics, clay, glass, heat-resistant plastic materials, non-inductively heated metals and alloys, pulp fibers, tobacco materials, and non-tobacco plant materials, or a mixture of at least two of them; among them, ceramics, clay, glass, heat-resistant plastic materials, non-inductively heated metals and alloys can be made into the sealing unit 2 by a molding process, and pulp fibers, tobacco materials, and non-tobacco plant materials can be made into the sealing unit 2 by a screw extrusion process.

[0047] Step 3: Prepare smoke-releasing particle unit 4:

[0048] Pure tobacco particles or mixed particles of tobacco and plant flavorings are formed into a fixed volume or fixed mass method to form a fixed quantity of smoke-releasing particle units 4. The mixed particles of tobacco and plant flavorings can be formed into spherical particles or granular particles with a circular cross section by a granulation process of tobacco and plant flavorings.

[0049] Step 4: Prepare the induction heating unit 5:

[0050] The sensor base 6 is prepared by using any one of ceramics, clay, glass, non-inductively heated metals and alloys, heat-resistant plastic materials, pulp fibers, tobacco materials and non-tobacco plant materials, and the induction heater 7 is prepared by using electromagnetic induction heating materials. Then, the induction heater 7 is fixed on the sensor base 6 to form an induction heating unit 5.

[0051] Among them, materials such as ceramics, clay, glass, and non-inductively heated metals and alloys can be molded into the sensor substrate 6. Materials such as heat-resistant plastics can be injection molded. Materials such as pulp fibers, tobacco materials, and non-tobacco plant materials can be extruded. Electromagnetic induction heating materials include ferrite, martensite, stainless steel, neodymium iron boron, and their alloys. Induction heater 7 can be made using any one or at least two of these materials through metal molding or CNC machine tools. The induction heater 7 can be fixedly connected to the sensor substrate 6 using high-temperature adhesive bonding or threaded connections.

[0052] Step 5: Prepare the filtration unit 3:

[0053] The filter unit 3 having a porous structure is formed by at least one of cellulose, raw materials of smoke-releasing particles, and plant raw materials, or by mixing at least two of them.

[0054] Step 6: Cigarette forming:

[0055] The cigarette outer tube 1, the blocking unit 2, and the filter unit 3 are cut into specified lengths, and then the blocking unit 2, the smoke-releasing particle unit 4, the induction heating unit 5, and the filter unit 3 are installed into the cigarette outer tube 1. The two ends of the smoke-releasing particle unit 4 are blocked by the induction heating unit 5 and the blocking unit 2 respectively, and the induction heater 7 is embedded in the smoke-releasing particle unit 4 to obtain a cigarette product.

[0056] In order to verify the effectiveness of the sensor-containing granular heated cigarette product provided in this embodiment, the applicant used the granular heated cigarette product provided in this embodiment containing the induction heating unit 5 as a sample and a granular heated cigarette product without the induction heating unit 5 as a control example, comparing the two and obtaining graphs showing the smoke emission and smoke temperature of each product as a function of puffing time. The graphs showing the smoke emission as a function of puffing time are shown in FIG3 , and the graphs showing the smoke temperature as a function of puffing time are shown in FIG4 . As can be seen from FIG3 and FIG4 , under the same conditions, the granular heated cigarette containing the induction heating unit 5 has a more sufficient smoke emission and a lower smoke temperature than the granular heated cigarette without the induction heating unit 5. The granular heated cigarette containing the induction heating unit 5 has a significant advantage in both smoke emission and smoke temperature.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A particulate heated tobacco product containing a sensor, comprising a hollow cigarette outer tube, characterized in that: At both ends of the inner channel of the cigarette outer tube, a plugging unit and a filtering unit are respectively provided. In the middle section of the inner channel of the cigarette outer tube, a smoke-releasing particle unit and an induction heating unit are provided. The two ends of the smoke-releasing particle unit are plugged by the induction heating unit and the plugging unit respectively. The induction heating unit includes a sensor base body and an induction heater which are connected to each other, and the induction heater is embedded inside the smoke-releasing particle unit.

2. The granular heated tobacco product with a sensor according to claim 1, wherein: A plurality of flue gas channels are formed on the sensor base body. The outer periphery of the sensor base body fits with the inner wall of the cigarette outer tube, and one end of the smoke-releasing particle unit is plugged by the sensor base body.

3. The particulate heated tobacco product with a sensor according to claim 2, wherein: The induction heater is made of an electromagnetic induction heating material.

4. The granular heated tobacco product containing a sensor according to claim 1, wherein: In the inner channel of the cigarette outer tube, a gap is left between the induction heating unit and the filtering unit, and a functional unit is arranged in the gap.

5. The particulate heat-not-burn tobacco product containing a sensor according to claim 4, wherein: The functional unit is a temperature-reducing and fragrance-enhancing unit.

6. The particulate heated tobacco product with a sensor according to claim 4, wherein: The functional unit is made by mixing at least one of bursting beads, slow-release phase change materials, fragrance threads, sachets, temperature-reducing particles with a filtering material.

7. A particulate heated cigarette product containing a sensor as claimed in claim 1, wherein: The filtering unit is made of a filtering material alone or made by mixing at least one of bursting beads, slow-release phase change materials, fragrance threads, sachets, temperature-reducing particles with a filtering material.

8. A particulate heated cigarette product containing a sensor according to claim 1, characterized in that: The cigarette outer tube is made of any one or at least two mixtures of pulp fibers, non-tobacco plant fibers, wood pulp fibers, bamboo pulp fibers, and tobacco materials.

9. A particulate heated cigarette product containing a sensor according to claim 2, characterized in that: The length of the plugging unit is 1 - 6 mm, the length of the smoke-releasing particle unit is 8 - 15 mm, the length of the sensor base body is 2 - 6 mm, the length of the induction heater is 6 - 12 mm, and the length of the filtering unit is 4 - 12 mm.

10. A method for preparing a particulate heated cigarette product containing a sensor according to any one of claims 1 to 9, characterized in that, It includes the following steps: Step 1: Prepare the cigarette outer tube: The cigarette outer tube is made of any one or at least two mixtures of pulp fibers, non-tobacco plant fibers, wood pulp fibers, bamboo pulp fibers, and tobacco materials; Step 2: Prepare the plugging unit: The plugging unit is made of at least one or at least two mixtures of ceramics, clay, glass, heat-resistant plastic materials, non-inductive heating metals and alloys, pulp fibers, tobacco materials and non-tobacco plant materials; Step 3: Prepare the smoke-releasing particle unit: Pure tobacco particles or mixed particles of tobacco and plant fragrances are formed into a quantitative smoke-releasing particle unit by a fixed volume or fixed mass method; Step 4: Prepare the induction heating unit: The sensor base body is made of any one of ceramics, clay, glass, non-inductive heating metals and alloys, heat-resistant plastic materials, pulp fibers, tobacco materials, and non-tobacco plant materials. The induction heater is made of an electromagnetic induction heating material, and then the induction heater is fixed on the sensor base body to form the induction heating unit; Step 5: Prepare the filtering unit: The filtering unit with a porous structure is formed by mixing at least one of cellulose, raw materials of smoke-releasing particles, and plant raw materials; Step 6: Cigarette forming: The cigarette outer tube, the plugging unit, and the filtering unit are cut into specified lengths, and then the plugging unit, the smoke-releasing particle unit, the induction heating unit, and the filtering unit are loaded into the cigarette outer tube. The two ends of the smoke-releasing particle unit are plugged by the induction heating unit and the plugging unit respectively, and the induction heater is embedded inside the smoke-releasing particle unit.

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