Heating cavity structure for improving smoking stability of heated cigarette

Abstract

A heating cavity structure for improving smoking stability of a heated cigarette comprises a hollow cylinder and is characterized in that the circumferential wall of the hollow cylinder is divided into a heating area and a non-heating area, the heating area and the non-heating area are arranged alternately, a resistance type heating mechanism is embedded in the inner wall face of the cylinder of the heating area, and the non-heating area does not have a heating function. The heating cavity has the advantages that the purpose of improving the smoking stability of the heated cigarette is achieved by improving the structure of the heating cavity, the heat transfer process of the heated cigarette is effectively delayed with low cost, and the effects of slow release and uniform release of smoke are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of novel tobacco, specifically a heating chamber structure for improving the smoking stability of heated cigarettes. Background Technology

[0002] In recent years, various new tobacco products have gradually come into view, with heated cigarettes being one of them. Heated cigarettes, due to their non-combustible nature, can effectively reduce the content of harmful substances in smoke, attracting widespread attention both domestically and internationally. However, due to their relatively short development history and imperfect technology, they still have many shortcomings. One of these is the poor stability of the smoke after each puff, specifically manifested in significant sensory differences between different numbers of puffs, generally with the first and later puffs being weaker. Henan China Tobacco Industry Co., Ltd. has disclosed a heated cigarette device (application number CN202420173618.7) that detects the concentration and temperature of the smoke during smoking and determines the heating power of the heating element based on the smoke concentration and temperature to adjust the heating temperature of the heating element, thus maintaining stable smoke concentration and temperature, ensuring consistent taste, and improving the smoking experience. Sichuan Sanlian New Materials Co., Ltd. and Sichuan China Tobacco Industry Co., Ltd. disclosed a filter rod, its manufacturing method, preparation system, and heated cigarettes using the same (application number CN202311233159.3). Cellulose paper is added to the filter rod, utilizing its properties of easily absorbing added flavorings, retaining impurities, and slowly releasing specific components. This gives the filter rod both added flavorings and filtering functions. Using this filter rod in heated cigarettes can effectively improve the stability of the sensory quality of each puff. Adding a real-time detection mechanism to the smoking device may increase the manufacturing cost and failure rate, while using a filter to absorb and release smoke is a passive regulation method with limited effect on smoke regulation.

[0003] The aforementioned patents were all proposed to improve the stability of smoking heated cigarettes, and this utility model was also created based on this purpose. Utility Model Content

[0004] This invention provides a heating chamber structure to improve the smoking stability of heated cigarettes, thereby achieving the goal of improving the smoking stability of heated cigarettes by improving the heating chamber structure.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A heating cavity structure for improving the smoking stability of heated cigarettes includes a hollow cylinder, wherein: the circumferential wall of the hollow cylinder is divided into a heating zone and a non-heating zone, the heating zone and the non-heating zone are arranged alternately, a resistance heating mechanism is embedded in the inner wall of the heating zone, and the non-heating zone does not have a heating function.

[0007] The specific technical solutions of this utility model can be divided into the following three forms:

[0008] 1) The non-heating area is a hollow structure, numbering 2-5, and is rectangular in shape, evenly distributed along the circumference of the hollow cylinder on the circumferential wall. The hollow cylinder of the hollow structure is made of metal or non-metal materials.

[0009] 2) The circumferential wall of the hollow cylinder is evenly divided into four parts along the radial direction, with two pairs opposite each other. One pair is the heating zone and the other pair is the non-heating zone. The inner wall of the heating zone is inlaid with a resistance heating mechanism. The hollow cylinder is made of ceramic material.

[0010] 3) The circumferential wall of the hollow cylinder is divided into multiple smaller cylinders of equal height along the axial direction, alternating between heating and non-heating zones. A resistance heating mechanism is embedded in the inner wall of the smaller cylinders in the heating zone. The hollow cylinder is made of ceramic material. The circumferential wall of the hollow cylinder is divided into six smaller cylinders of equal height along the axial direction.

[0011] Furthermore, the resistance heating mechanism is a heating wire, which is embedded in the inner wall of the heating zone.

[0012] The greatest advantage of this invention is that by simply improving the original structure of the heating chamber, the stability of the heated cigarette smoke can be improved at a lower cost. This can effectively slow down the heat transfer process of the heated cigarette, so that the smoking process can achieve the effect of slow and uniform release of smoke. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the hollow heating cavity structure in Example 1;

[0014] Figure 2 This is a schematic diagram of the radial partitioned heating cavity structure in Example 2;

[0015] Figure 3 This is a schematic diagram of the longitudinally partitioned heating cavity structure in Example 3;

[0016] Figure 4 For per-pocket flue gas ACM (flue gas aerosol capture rate) heated using the original heating chamber and three improved heating chambers.

[0017] In the diagram: 1. Heating chamber, 2. Heating zone, 3. Non-heating zone. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings (embodiments):

[0019] Example 1

[0020] The heating chamber 1 is primarily a hollow cylinder, which can be made of metal or non-metal. The cylinder wall has 2-5 rectangular perforated areas. In this example, the perforated areas are non-heating areas 3. Heating resistance wires are embedded in the inner walls of these non-perforated areas, forming heating areas 2. During use, the cigarette is inserted into the heating chamber, and heating areas 2 heat the cigarette. As the heating process continues, the heat generated in heating areas 2 gradually diffuses through the cigarette to the non-heating areas 3. Figure 4 As can be seen, compared with conventional peripheral heating methods, the method mentioned in this utility model effectively slows down the heating process and achieves uniform release of flue gas.

[0021] Example 2

[0022] The heating chamber 1 is primarily a hollow ceramic cylinder, radially divided into four sections, arranged in pairs. One pair is the heating zone 2, and the other pair is the non-heating zone 3. Heating wires are embedded in the inner wall of the heating zone 2. During use, the cigarette is inserted into the heating chamber, and the heating zone 2 heats up, thus heating the cigarette. As the heating process continues, the heat generated in the heating zone 2 gradually diffuses to the part of the cigarette that contacts the non-heating zone 3. Due to the relatively high thermal resistance of the ceramic and the cigarette, the heat transfer process is relatively slow, thereby achieving the purpose of slow smoke release and improving the stability of the smoke during inhalation. Figure 4 As can be seen, compared with the original peripheral heating method, the radial partitioned heating cavity can achieve the purpose of slowing down the release of flue gas and improving the uniformity of flue gas release.

[0023] Example 3

[0024] The main body of the heating chamber 1 is a hollow ceramic cylinder. This cylinder is divided axially into several smaller cylinders of equal height, belonging to heating zone 2 and non-heating zone 3 respectively. The cylinders in heating zone 2 and non-heating zone 3 are arranged alternately. Heating wires are embedded in the inner wall of heating zone 2. When a cigarette is inserted into the heating chamber, heating zone 2 heats up, thus heating the cigarette. As the heating process continues, the heat generated in heating zone 2 gradually diffuses to the part of the cigarette that contacts non-heating zone 3. Because the thermal resistance of the ceramic and the cigarette is relatively high, the heat transfer process is relatively slow, thereby achieving the purpose of slow smoke release and improving the stability of the smoke during the smoking process. Figure 4 As can be seen, compared with the original peripheral heating method, the longitudinal partitioned heating chamber can achieve the purpose of slowing down the release of flue gas and improving the uniformity of flue gas release.

Claims

1. A heating cavity structure for improving the smoking stability of heated cigarettes, comprising a hollow cylinder, characterized in that: The circumferential wall of the hollow cylinder is divided into two parts: a heating zone and a non-heating zone. The heating zone and the non-heating zone are arranged alternately. A resistance heating mechanism is embedded in the inner wall of the cylinder in the heating zone, while the non-heating zone does not have a heating function.

2. The heating cavity structure according to claim 1, characterized in that, The non-heated area is a hollow structure, numbering 2-5, and is rectangular in shape, evenly distributed along the circumference of the hollow cylinder. The hollow cylinder of this hollow structure is made of metal or non-metal materials.

3. The heating cavity structure according to claim 1, characterized in that, The circumferential wall of the hollow cylinder is evenly divided into four parts along the radial direction, with two pairs opposite each other. One pair is a heating zone, and the other pair is a non-heating zone. The inner wall of the heating zone is inlaid with a resistance heating mechanism. The hollow cylinder is made of ceramic material.

4. The heating cavity structure according to claim 1, characterized in that, The circumferential wall of the hollow cylinder is divided into multiple small cylinders of the same height along the axial direction, which are alternately arranged as heating zones and non-heating zones. A resistance heating mechanism is embedded in the inner wall of the small cylinder in the heating zone. The hollow cylinder is made of ceramic material.

5. The heating cavity structure according to claim 4, characterized in that, The circumferential wall of the hollow cylinder is divided into six smaller cylinders of the same height along the axial direction.

6. The heating cavity structure according to claim 1, 3, or 4, characterized in that, The resistance heating mechanism uses an electric heating wire.

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