Self-heating type integrated heating cigarette product

Abstract

The invention provides a self-heating type integrated heating cigarette product which sequentially comprises a heat production function unit, a heating function unit, a heating function unit, a heating function unit and a heating function unit in the axial direction, and the heat production function unit is used for providing a controllable and stable heat source for a matrix unit; the heat conduction enhancing unit comprises a plurality of axial extension bodies with specific heat conduction coefficients, and the extension bodies extend towards adjacent modules to optimize a heat conduction path; the heatable matrix unit and the heat conduction enhancing unit form a multi-dimensional heat exchange interface, and efficient conversion of heat energy is achieved. The temperature regulation and flavor regulation and control unit is used for optimizing physical parameters of the aerosol; and a filter unit. According to the heating cigarette product, through the integrated design of the built-in functional unit, a self-coupling structure of a heat source and a heated matrix is achieved, and the use process is simplified; based on heat conduction optimization of an extension body structure and construction of a multi-dimensional heat exchange interface, the heat energy utilization efficiency is improved, and the heating uniformity is ensured; the temperature and flavor are cooperatively regulated and controlled, so that the comprehensive quality of the product and the user experience are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tobacco processing, and relates to an integrated heating cigarette. BACKGROUND

[0002] The heating cigarette releases aerosol by precisely controlling the heating temperature without burning tobacco, and the core is to avoid harmful substances generated by high-temperature cracking. However, the prior art seriously depends on special heating equipment, and has the following inherent defects:

[0003] (1) High use cost: the equipment needs to integrate a rechargeable lithium battery (with a cycle life of about 300 times), a microprocessor temperature control module (usually accurate to ±5℃ accuracy) and a heating element (such as a ceramic / metal heating body), resulting in high single equipment cost, and users need to bear additional purchase cost;

[0004] (2) Poor portability and complex operation: the general equipment has a size length of 90mm and a weight of more than 80g, and needs to be charged (about 10-20 cigarettes / charge) and cleaned relatively frequently, which restricts the use scene;

[0005] (3) Limited compatibility: some equipment is only suitable for specific brand cigarettes, and even if it can be used, the compatibility of the equipment and the cigarettes is poor, which seriously affects the smoking experience of consumers.

[0006] The application proposes a heating cigarette design scheme of "self-heating type equipment and cigarette integration", which integrates the heat generating function unit and the tobacco substrate unit to realize the "equipment-free" function. This revolutionary design will promote the transformation of the heating cigarette from "equipment-dependent type" to "hardware-free" consumption mode. SUMMARY

[0007] To solve the "equipment-dependent" technical problem in the prior art, the application provides a self-heating integrated heating cigarette product, which can realize the "equipment-free" function, improve the heating uniformity of the heat-receiving substrate unit, improve the overall quality of the heating cigarette, and further enhance the sensory experience of the user.

[0008] To achieve the above technical effects, the application adopts the following technical scheme:

[0009] The application provides a self-heating integrated heating cigarette product, which comprises, in sequence along the axial direction: (1) a heat generating function unit; (2) a heat conduction enhancement unit; (3) a heat-receiving substrate unit; (4) a temperature adjusting and flavor regulating unit; and (5) a filter unit.

[0010] The heat generating function unit is used to provide a heat source for the heat-receiving substrate unit.

[0011] The heat conduction enhancement unit comprises at least one heat-conducting axial extension body extending into the heat-receiving substrate unit.

[0012] The heat-receiving substrate unit and the heat-conducting axial extension body form a multidimensional heat exchange interface.

[0013] As a preferred technical solution of the present application, the heat-generating functional unit has a honeycomb structure.

[0014] As a preferred technical solution of the present application, the material of the heat-generating functional unit includes one of pure carbon heating material, a mixture of carbon heating material and tobacco biomass material, a mixture of ethanol and tobacco biomass.

[0015] As a preferred technical solution of the present application, the heat-generating functional unit further comprises a metal catalyst.

[0016] As a preferred technical solution of the present application, the length of the heat-generating functional unit is 10-15% of the total length of the heated cigarette.

[0017] As a preferred technical solution of the present application, the geometric configuration of the heat conduction enhancement unit includes a rod structure and / or a needle structure.

[0018] The length of the heat conduction enhancement unit is 80-100% of the length of the heat-receiving substrate unit. As a preferred technical solution of the present application, the material of the heat conduction enhancement unit includes metal or heat-conducting salt.

[0019] As a preferred technical solution of the present application, the metal includes any one or a combination of at least two of aluminum alloy, copper or copper alloy.

[0020] As a preferred technical solution of the present application, the heat-conducting salt includes any one or a combination of at least two of NaCl-KCl, NaNO3-KNO3 mixed salt.

[0021] As a preferred technical solution of the present application, a phase change material is arranged between the heat-generating functional unit and the heat conduction enhancement unit.

[0022] As a preferred technical solution of the present application, the phase change material includes any one or a combination of at least two of KNO3-NaNO2-NaNO3 mixed salt, LiNO3-KNO3-NaNO3 mixed salt, K2CO3-Na2CO3-Li2CO3 mixed salt or ZnCl2-KCl mixed salt.

[0023] As a preferred technical solution of the present application, the thickness of the phase change material is 1-10% of the total length of the heated cigarette.

[0024] As a preferred embodiment of the present invention, the total length of the heat-receiving matrix unit is 20-40% of the total length of the heated cigarette.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] This invention provides an integrated heated cigarette that not only eliminates the need for a smoking device but also improves the heating uniformity of the heat-receiving substrate unit, enhancing the overall quality of the heated cigarette and thus improving the user's sensory experience. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the integrated heated cigarette provided in Embodiment 1 of the present invention.

[0028] Figure 2 This is a cross-sectional schematic diagram of the heat conduction enhancement unit for the integrated heated cigarette provided in Embodiment 1 of the present invention.

[0029] Figure 3 This is a cross-sectional schematic diagram of the heat conduction enhancement unit for the integrated heated cigarette provided in Embodiment 2 of the present invention.

[0030] Figure 4 This is a cross-sectional schematic diagram of the heat conduction enhancement unit for the integrated heated cigarette provided in Embodiment 3 of the present invention.

[0031] In the diagram: 1-Heat generation unit, 2-Heat conduction enhancement unit, 3-Heatable matrix unit, 4-Temperature regulation and flavor control unit, 5-Filter unit.

[0032] The present invention will now be described in further detail. However, the examples described below are merely simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims. Detailed Implementation

[0033] The technical solution of this application will be further described below through specific implementation methods.

[0034] This invention provides a self-heating integrated heated cigarette product, wherein the heated cigarette comprises, in sequence along the axial direction: (1) a heat-generating functional unit; (2) a heat conduction enhancement unit; (3) a heat-receiving matrix unit; (4) a temperature regulation and flavor control unit; and (5) a filter unit.

[0035] The heat-generating functional unit is used to provide a heat source for the heatable matrix unit;

[0036] The thermal conductivity enhancement unit includes at least one thermally conductive axial extension that extends into the interior of the heat-receivable matrix unit.

[0037] The heatable matrix unit forms a multi-dimensional heat exchange interface with the heat-conducting axial extension.

[0038] The number of heat-conducting axial extensions can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, but is not limited to the listed values, and other values within the range are also applicable.

[0039] In the present application, the heat-conducting axial extensions of the heat conduction enhancement unit inserted into the heatable matrix unit enable the heat generated by the heat-generating functional unit to be more uniformly conducted to the inside of the matrix unit, reducing the initial heating time of the matrix unit and enabling the inside of the matrix unit to be more uniformly heated, thereby avoiding local overheating or insufficient heating of the inside of the matrix unit, reducing the generation of harmful substances, improving the quality of smoke, and improving the overall sensory experience of the user.

[0040] In one embodiment of the present application, the heat-generating functional unit has a honeycomb structure, which makes it easier to ignite.

[0041] In one embodiment of the present application, the material of the heat-generating functional unit includes carbon heating material. The carbon heating material is a high-quality carbon material commonly used in tobacco processing, and its specific composition is not limited. As an example, graphite powder and a phenolic resin adhesive are mixed and subjected to mold pressing to obtain a honeycomb structure of the heat-generating functional unit.

[0042] In one embodiment of the present application, the heat-generating functional unit can also be added with an appropriate amount of metal and its oxide catalyst to improve combustion efficiency. Preferably, the metal catalyst is a mixture of Mg and MgO with a mass ratio of 2:1.

[0043] In one embodiment of the present application, the length of the heat conduction enhancement unit is 10-15% of the total length of the heated cigarette, such as 10%, 11%, 12%, 13%, 14%, or 15%, but is not limited to the listed values, and other values within the range are also applicable.

[0044] In one embodiment of the present application, the length of the heat conduction enhancement unit is 80-100% of the length of the heatable matrix unit, such as 80%, 82%, 85%, 88%, 90%, 92%, 95%, 98%, or 100%, but is not limited to the listed values, and other values within the range are also applicable.

[0045] In one embodiment of the present application, the diameter of the heat conduction enhancement unit structure can be adjusted according to the number of arrangements and the diameter of the cigarette, which is not limited further. As an example, the diameter of the heat conduction enhancement unit structure can be 0.2-3.0 mm, such as 0.2 mm, 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, or 3.0 mm, but is not limited to the listed values, and other values not listed in this range are also applicable.

[0046] In one embodiment of the present application, the material of the heat conduction enhancement unit includes metal or heat-conducting salt.

[0047] In one embodiment of the present application, the metal includes any one or a combination of at least two of aluminum alloy, copper, or copper alloy.

[0048] In one embodiment of the present application, the heat-conducting salt includes any one or a combination of at least two of NaCl-KCl, NaNO3-KNO3 mixed salt.

[0049] In one embodiment of the present application, a phase change material is arranged between the heat generation functional unit and the heat conduction enhancement unit.

[0050] In the present application, the phase change material arranged between the heat generation functional unit and the heat conduction enhancement unit can balance the temperature of the heating body, prevent local overheating, and improve the uniformity of tobacco segment heating.

[0051] In one embodiment of the present application, the phase change material includes any one or a combination of at least two of KNO3-NaNO2-NaNO3 mixed salt, LiNO3-KNO3-NaNO3 mixed salt, K2CO3-Na2CO3-Li2CO3 mixed salt, or ZnCl2-KCl mixed salt.

[0052] In one embodiment of the present application, the thickness of the phase change material is 1-10% of the total length of the heated cigarette, such as 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10%, but is not limited to the listed values, and other values not listed in this range are also applicable.

[0053] In one embodiment of the present application, the total length of the heat-receiving substrate unit is 20-40% of the total length of the heated cigarette, such as 20%, 25%, 30%, 35%, or 40%, but is not limited to the listed values, and other values not listed in this range are also applicable.

[0054] In one specific embodiment of the present application, the heatable substrate unit is filled with materials such as tobacco, and any tobacco material used in the art can be filled in the substrate unit, which can be selected according to production needs without specific limitation.

[0055] In one specific embodiment of the present application, the length of the temperature regulating and flavor regulating unit is 30-50% of the total length of the heat-not-burn cigarette, such as 30%, 35%, 40%, 45%, or 50%, but is not limited to the listed values, and other values not listed in the range are also applicable.

[0056] In one specific embodiment of the present application, the temperature regulating and flavor regulating unit is used to optimize the physical parameters of the aerosol, and at the same time, the flavor regulation can be achieved by loading flavoring spices through the design of the porous medium structure.

[0057] In one specific embodiment of the present application, the length of the filter unit is 10-30% of the total length of the heat-not-burn cigarette, such as 10%, 15%, 20%, 25%, or 30%, but is not limited to the listed values, and other values not listed in the range are also applicable.

[0058] In one specific embodiment of the present application, the filter unit is a conventional structure of the heat-not-burn cigarette, and the material can be selected according to production needs without specific limitation.

[0059] In one specific embodiment of the present application, the heat-generating functional unit, the heat conduction enhancement unit, the heatable substrate unit, the temperature regulating and flavor regulating unit, and the filter unit are connected in sequence along the axial direction and are arranged in the shell or the cigarette paper. The filter unit can be integrated inside the shell or externally connected to the outside of the cigarette paper. The overall appearance of the heat-not-burn cigarette is the same as that of a conventional heat-not-burn cigarette.

[0060] Example 1

[0061] This example provides a heat-not-burn cigarette, which has a structure as shown in Figure 1 and 2 The heat-not-burn cigarette comprises a heat-generating functional unit 1, a heat conduction enhancement unit 2, a heatable substrate unit 3, a temperature regulating and flavor regulating unit 4, and a filter unit 5 connected in sequence along the axial direction;

[0062] The heat conduction enhancement unit 2 comprises two parallel rod-shaped structures inserted into the heatable substrate unit 3, and the diameter of the rod-shaped structure is 1.2 mm and the length is 75% of the length of the heatable substrate unit 3. The heat-generating functional unit has a honeycomb structure, and the main material is graphite powder.

[0063] The heating cigarette has a total length of 84 mm and a diameter of 7.7 mm, wherein the length of the heat generation functional unit 1 is 12% of the total length of the heating cigarette, the length of the heatable substrate unit 3 is 35% of the total length of the heating cigarette, the length of the temperature adjustment and flavor regulation unit 4 is 35% of the total length of the heating cigarette, and the length of the filter unit 5 is 18% of the total length of the heating cigarette.

[0064] Example 2

[0065] The heating cigarette of the present embodiment is identical to that of Example 1 except that the heat conduction enhancement unit includes four rod-shaped structures having a diameter of 0.6 mm and arranged as shown in Figure 3

[0066] Example 3

[0067] The heating cigarette of the present embodiment is identical to that of Example 1 except that the heat conduction enhancement unit includes seven rod-shaped structures having a diameter of 0.3 mm and arranged as shown in Figure 4

[0068] Example 4

[0069] The heating cigarette of the present embodiment is identical to that of Example 1 except that the length of the heat conduction enhancement unit (rod-shaped structure) is 50% of the length of the heatable substrate unit.

[0070] Example 5

[0071] The heating cigarette of the present embodiment is identical to that of Example 1 except that the length of the heat generation functional unit is 10% of the total length of the heating cigarette, the length of the heatable substrate unit is 30% of the total length of the heating cigarette, the length of the temperature adjustment and flavor regulation unit is 50% of the total length of the heating cigarette, and the length of the filter unit is 10% of the total length of the heating cigarette.

[0072] Example 6

[0073] The heating cigarette of the present embodiment is identical to that of Example 1 except that a phase change material having a length of 5% of the total length of the heating cigarette is arranged between the heat generation functional unit and the heat conduction enhancement unit, the length of the heat generation functional unit 1 is 10% of the total length of the heating cigarette, and the length of the heatable substrate unit is 32% of the total length of the heating cigarette. The phase change material includes a mixed salt of KNO3-NaNO2-NaNO3.

[0074] Example 7

[0075] The heating cigarette of the present embodiment is identical to that of Example 1 except that the main material of the heat generation functional unit is a mixture of graphite powder and tobacco powder (mass ratio 1:1).

[0076] ​​Example 8

[0077] This example is identical to Example 1 except that the main body material of the heat generating functional unit is a mixture of ethanol and tobacco powder (mass ratio 1:4).

[0078] Comparative Example 1

[0079] This comparative example is identical to Example 1 except that no heat conduction enhancement unit is provided.

[0080] Comparative Example 2

[0081] This comparative example is identical to Example 1 except that the heat conduction enhancement unit is a layered structure and is not inserted into the heatable substrate unit. The length of the heat generating functional unit is 10% of the total length of the heat-not-burn cigarette, the length of the heat conduction enhancement unit is 2% of the total length of the heat-not-burn cigarette, the length of the heatable substrate unit is 35% of the total length of the heat-not-burn cigarette, the length of the temperature adjustment and flavor control unit is 35% of the total length of the heat-not-burn cigarette, and the length of the filter unit is 18% of the total length of the heat-not-burn cigarette.

[0082] In Examples 1-8 and Comparative Examples 1-2, the heat generating functional unit has a honeycomb structure, the main body material is graphite powder, the material of the heat conduction enhancement unit is aluminum alloy 6061, the material filled in the heatable substrate unit is thick slurry tobacco sheet, the temperature adjustment and flavor control unit is made of 85% cellulose acetate tow with 15% triacetin, and the filter unit is made of 80% cellulose acetate tow with 20% triacetin.

[0083] Seven experts with more than 5 years of experience in sensory evaluation of tobacco products were invited to score the smoke temperature, smoke volume, puffing uniformity, aroma, irritation, and miscellaneous odor of the integrated heat-not-burn cigarettes provided in Examples 1-8 and Comparative Examples 1 and 2 using the 0-9 equal-interval scale scoring method, to comprehensively evaluate the sensory experience of the above-mentioned integrated heat-not-burn cigarettes. The evaluation results are shown in Table 1, wherein the comprehensive evaluation is a comprehensive score given by the evaluation experts to an integrated heat-not-burn cigarette product.

[0084] Table 1

[0085]

[0086]

[0087] The applicant declares that the present application is illustrated by the above-mentioned embodiments, but the present application is not limited to the above-mentioned detailed structure features, i.e. it does not mean that the present application must rely on the above-mentioned detailed structure features to be implemented. It should be understood by those skilled in the art that any improvement of the present application, equivalent replacement of the components selected by the present application, addition of auxiliary components, selection of specific modes, etc. all fall within the protection scope and disclosure scope of the present application.

[0088] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details in the above-mentioned embodiments, and within the technical concept scope of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application.

[0089] In addition, it should be noted that each specific technical feature described in the above-mentioned specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present application will not further describe various possible combination manners.

[0090] In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should be considered as the disclosed content of the present application.

Claims

1. A self-heating integrated heated cigarette product, characterized in that, The heated cigarette comprises, in sequence along the axial direction, the following: (1) a heat-generating functional unit; (2) a heat conduction enhancement unit; (3) a heat-receiving matrix unit; (4) a temperature regulation and flavor control unit; and (5) a filter unit. The heat-generating functional unit is used to provide a heat source for the heatable matrix unit; The thermal conductivity enhancement unit includes at least one thermally conductive axial extension that extends into the interior of the heat-receivable matrix unit. The heat-receivable matrix unit and the thermally conductive axial extension form a multi-dimensional heat exchange interface.

2. The integrated heated cigarette according to claim 1, characterized in that, The material of the heat-generating functional unit includes one of the following: pure carbon heating material, a mixture of carbon heating material and tobacco biomass material, or a mixture of ethanol and tobacco biomass.

3. The integrated heated cigarette according to claim 1, characterized in that, The heat-generating functional unit has a honeycomb structure.

4. The integrated heated cigarette according to claim 1, characterized in that, The heat-generating functional unit also includes a metal catalyst.

5. The integrated heated cigarette according to claim 1, characterized in that, The length of the heat-generating functional unit is 10-15% of the total length of the heated cigarette.

6. The integrated heated cigarette according to claim 1, characterized in that, The geometry of the heat conduction enhancement unit includes a rod-shaped structure and / or a needle-shaped structure; The length of the heat conduction enhancement unit is 80-100% of the length of the heat-receiving matrix unit.

7. The integrated heated cigarette according to claim 1, characterized in that, The material of the heat conduction enhancement unit includes metal or thermally conductive salt.

8. The integrated heated cigarette according to claim 1, characterized in that, The metal includes any one or a combination of at least two of aluminum alloys, copper, or copper alloys. The thermally conductive salt includes any one or a combination of at least two of the following: NaCl-KCl and NaNO3-KNO3 mixed salts.

9. The integrated heated cigarette according to claim 1, characterized in that, A phase change material is disposed between the heat generation functional unit and the heat conduction enhancement unit; The phase change material includes any one or a combination of at least two of the following: KNO3-NaNO2-NaNO3 mixed salt, LiNO3-KNO3-NaNO3 mixed salt, K2CO3-Na2CO3-Li2CO3 mixed salt, or ZnCl2-KCl mixed salt. The thickness of the phase change material is 1 to 10% of the total length of the heated cigarette.

10. The integrated heated cigarette according to claim 1, characterized in that, The total length of the heat-receivable matrix unit is 20% to 40% of the total length of the heated cigarette.

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