Functional element for heating cigarette

Abstract

The utility model relates to a functional element used for heating cigarettes, which comprises a channel pipe with a groove, a plugging piece is arranged in the middle of the channel pipe, the periphery of the plugging piece is fixedly connected with the inner wall of the channel pipe, and one or more channels extending axially are arranged between the plugging piece and the channel pipe. The utility model has the advantages that: the plugging piece with the through hole is arranged in the channel pipe with the openings at the two ends, so that a good plugging effect is achieved on the fuming material, the fuming material is kept not to generate large displacement when the heater is inserted, and a good fuming effect is ensured; meanwhile, by means of the through hole of the plugging piece and the channel pipe groove, smoke aerosol formed by the cigarette can be effectively cooled when flowing through the channel pipe, and a user can obtain better smoking experience during smoking.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette technology, and relates to a heating element for cigarette aerosol channels and cigarettes. Background Technology

[0002] Heated tobacco products are tobacco products that heat tobacco to a high temperature of approximately 300-350℃ without combustion. Because no tobacco is burned, heated tobacco releases nicotine and other chemicals, but the aerosol produced contains 90-95% less harmful substances than the smoke produced by burning traditional cigarettes, while producing no smoke or ash. However, to ensure sufficient smoke output, the filter material's adsorption of smoke should be minimized. This has led to common problems with heated cigarettes, such as insufficient smoke output or high smoke temperature, affecting the consumer's smoking experience. Therefore, ensuring sufficient smoke output and controlling the smoke temperature of heated cigarettes has become a crucial issue, and the structural design and development of aerosol channel elements has become an important technology in the development of heated cigarettes. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide a heating element for cigarettes and cigarettes.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A functional element for heating cigarettes includes a channel tube, a sealing member disposed inside the channel tube, the sealing member having a peripheral portion, the sealing member being fixedly connected to the inner wall of the channel tube through the peripheral portion; a through hole extending axially along the channel tube is also provided between the sealing member and the channel tube.

[0006] Preferably, the two ends of the channel tube are provided with interconnecting openings, and the two ends of the channel tube are provided with chamfers.

[0007] Preferably, the outer surface of the channel tube is provided with multiple grooves, wherein the grooves extend along the axis of the channel tube.

[0008] Preferably, the cross-section of the groove is semi-circular, rectangular, trapezoidal, or elliptical.

[0009] Preferably, the peripheral portion extends in the radial direction of the channel tube.

[0010] Preferably, the sealing element is disposed at the middle position of the channel tube.

[0011] Preferably, the through holes are provided in a plurality of manner, wherein fluid entering the channel tube can pass through the through holes on the sealing member and flow from one end of the channel tube to the other end.

[0012] Preferably, the cross-sectional shape of the sealing element along the axial direction of the channel pipe is spherical, elliptical, spherical crown-shaped, spindle-shaped, or rectangular.

[0013] Preferably, the ratio of the length to the diameter of the channel tube is greater than 1.1, wherein the diameter of the channel tube is adapted to the diameter of the cigarette, that is, the outer diameter of the channel tube is not greater than the inner diameter of the cigarette.

[0014] Preferably, the functional element can be made of polymer materials, including but not limited to polypropylene, polycarbonate, polylactic acid, and cellulose acetate.

[0015] Preferably, the functional components can be made of materials such as ceramics, glass, and metal.

[0016] Due to the adoption of the above technical solution, the beneficial effects obtained by this utility model include:

[0017] 1. The functional element disclosed in this utility model provides a sealing component with through holes in a channel tube open at both ends. This component effectively seals the smoke-generating material, preventing significant displacement of the material during heater insertion and ensuring a good smoke generation effect. Simultaneously, the through holes in the sealing component and the grooves in the channel tube allow for effective cooling of the cigarette smoke aerosol as it flows through the channel tube. The reduced flow cross-section increases the flow velocity and decreases the temperature of the smoke aerosol, further cooling the aerosol and effectively improving the smoking experience.

[0018] 2. This utility model also discloses a cigarette using the aerosol channel element described above. Since the aerosol channel element has a better cooling effect, the smoke formed after the cigarette is burned or heated has a lower temperature, which greatly reduces the discomfort caused by the high temperature of the smoke aerosol, allowing the cigarette user to have a better smoking experience. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the functional element disclosed in this utility model.

[0020] Figure 2 This is a perspective view of an embodiment of the functional element disclosed in this utility model.

[0021] Figure 3 This is a front view of the functional element disclosed in Embodiment 2.

[0022] Figure 4 This is a cross-sectional schematic diagram of the functional elements disclosed in Embodiment 3.

[0023] Figure 5This is a cross-sectional structural diagram of a heated cigarette with functional elements disclosed in Example 4.

[0024] The attached figures are labeled as follows:

[0025] Smoke-generating section;

[0026] Functional components; 21. Channel tube; 22. Chamfer;

[0027] 24. Sealing component; 25. Through hole; 26. Groove; 27. Peripheral part;

[0028] 3. Filtering section; 4. Encapsulation layer. Detailed Implementation

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 As shown, this utility model mainly provides a functional element for heating cigarettes, enabling it to perform multiple functions such as limiting, cooling, and blending aroma in heated cigarettes, thereby enhancing the smoker's sensory experience. Based on this, the device mainly includes an aerosol channel element, and the disclosed aerosol channel element is used for heating non-combustible cigarettes. In this embodiment, the aerosol channel element includes a channel tube 21 with openings at both ends, and a sealing member 23 is provided inside the channel tube. The sealing member has a peripheral portion, which is fixedly connected to the inner wall of the channel tube. The sealing member 23 is positioned in the middle of the channel tube 21, making the overall structure of the functional element symmetrical. When used to heat cigarettes, both ends can be used as the aerosol inlet and outlet sections, reducing the difficulty of subsequent assembly processes. The channel tube 21 also has chamfers 22 at both ends, which facilitate the transfer of components in later assembly processes.

[0031] In this embodiment, the sealing member 23 is provided with a plurality of through holes 24 extending axially along the channel tube 21. Fluid entering the channel tube 21 can pass through the sealing member 23 through the through holes 24, allowing it to flow from one end of the channel tube 21 to the other end.

[0032] Furthermore, since the flue gas aerosol entering the channel tube 21 needs to pass through the through holes 24 on the sealing member 23 to flow to the rear end of the channel tube 21, the flow area of ​​the aerosol provided by the through holes 24 on the sealing member 23 is obviously smaller than the cross-sectional area of ​​the channel tube 21. According to the Venturi effect, the flow velocity of the aerosol increases and the pressure decreases when passing through the through holes 24. At the same time, the temperature of the aerosol decreases. Therefore, setting the sealing member 23 with multiple through holes 24 in the channel tube 21 can better reduce the temperature of the aerosol and provide a better suction experience.

[0033] Since the aerosol in cigarettes can only diffuse to the rear of the channel tube 21 by passing through the through hole 24 on the sealing component 23, the smoke aerosol will concentrate and flow to the rear of the channel tube 21 through the through hole 24 during the flow process. The smoke aerosol passing through the through hole 24 is more concentrated and uniform, which makes the aroma of the smoke aerosol more evenly dispersed and further improves the smoking experience of cigarettes.

[0034] In this embodiment, the through hole 24 can be any other geometric shape. It only needs to be able to allow the flue gas aerosol to pass through smoothly, and preferably the through hole 24 is an arc-shaped hole.

[0035] Optionally, in such Figure 1 In the first embodiment shown, the sealing member 23 is provided with 2-8 through holes 24.

[0036] Optionally, the ratio of the length to the diameter of the channel tube 21 is greater than 1.1, wherein the diameter of the channel tube 21 is adapted to the diameter of the cigarette, that is, the outer diameter of the channel tube 21 is not greater than the inner diameter of the cigarette.

[0037] Optionally, considering the small overall volume of the aerosol channel element disclosed in this utility model, in order to improve the assembly efficiency of the aerosol channel element during cigarette production, the sealing part 23 is placed in the middle of the channel tube 21, and both ends of the channel tube 21 are provided with chamfers 22, so that the overall structure of the functional element is symmetrical. When used in heated cigarettes, both ends can be used as the aerosol inlet and outlet sections at will, reducing the difficulty of subsequent assembly processes.

[0038] Optionally, the radius of the arc surface of the rounded end 22 is 0.2 to 0.8 mm.

[0039] Alternatively, the materials used for the aerosol channel elements can be plastic, glass, metal, ceramic, etc.

[0040] In this embodiment, the cross-sectional shape of the sealing element along the axial direction of the channel pipe is spherical, elliptical, spherical crown, or spindle-shaped, and the channel width between the sealing element and the channel pipe is 0.3 to 0.5 mm.

[0041] like Figure 2 As shown, the outer surface of the channel tube is provided with multiple grooves 25, wherein the grooves 25 penetrate along the axis of the channel tube; in this embodiment, the cross-section of the groove 25 can be semi-circular, rectangular, trapezoidal, elliptical, or irregular, and the minimum channel diameter of the groove is in the range of 0.2-0.5mm.

[0042] In this embodiment, the outer diameter of the channel tube 21 is 5.2 to 8.0 mm, the length is 6.0 to 15.0 mm, the distance between the sealing member 23 and the front end face of the channel tube 21 is 0.6 to 5 mm, and the length-to-diameter ratio of the channel tube 21 is greater than 1.1.

[0043] Specifically, in this embodiment, the outer diameter of the channel tube 21 is 5.6 mm, the length is 7.2 mm, the length-to-diameter ratio is 1.28, the wall thickness is 0.5 mm, and the distance between the sealing member 23 and the front end face of the channel tube 21 is 2 mm.

[0044] Optionally, the aerosol channel element also has an aroma-enhancing layer formed on its surface by means of impregnation, coating, etc. When the aerosol formed by the cigarette passes through the channel tube 21, the aroma substances in the aroma-enhancing layer will diffuse into the aerosol. In this way, the smoke aerosol can bring aroma to the mouth and enrich the smoking experience, thus improving the taste of the cigarette.

[0045] It should be noted that the functional element disclosed in this utility model, by setting a sealing component with through holes in the channel tube open at both ends, has a good sealing effect on the smoke-generating material, preventing significant displacement of the smoke-generating material when the heater is inserted, thus ensuring a good smoke-generating effect. Simultaneously, the through holes of the sealing component and the grooves of the channel tube allow for effective cooling of the cigarette smoke aerosol as it flows through the channel tube. Due to the reduced flow cross-section, the flow velocity of the smoke aerosol increases and the temperature decreases, achieving further cooling of the aerosol and effectively improving the smoking experience.

[0046] Example 2

[0047] like Figure 3 As shown, the functional elements in this embodiment are basically the same as those in embodiment 1. The only difference is that the sealing element in this embodiment has a spindle-shaped cross section and eight external grooves.

[0048] Example 3

[0049] like Figure 4 As shown, the functional elements in this embodiment are basically the same as those in Embodiment 1. The only difference is that the sealing element in this embodiment has a spherical cross-section and six external grooves.

[0050] Example 4

[0051] like Figure 5 As shown, this embodiment also proposes a heated cigarette, including the functional element 2 for heating the cigarette, the smoke-generating section 1, the filter section 3, and the encapsulation layer 4 mentioned above; wherein, the encapsulation layer 4 is rolled into a hollow tubular encapsulation tube, the smoke-generating section 1 is disposed at the front of the encapsulation tube, the functional element 2 is closely connected to the smoke-generating section 4, and the filter section 5 is disposed at the rear of the encapsulation tube.

[0052] The smoke-generating section 1 includes tobacco or other tobacco-like substances that, after being heated to a high temperature, produce an aromatic aerosol that can be inhaled. The filter section 5 has a structure largely similar to that of a traditional cigarette filter, filled with cellulose acetate or other filter materials that effectively filter aerosols. In this embodiment, the smoke-generating material used is a sheet-like material. It should be noted that the structural connections of the various components are relatively consistent with the structural components of existing heated cigarettes, and heated cigarettes are quite common in daily life; therefore, their structural principles will not be elaborated upon here.

[0053] It should be noted that this utility model has a simple structure and is easy to operate. When used in conjunction with the aerosol channel element mentioned above, the cigarette can have a better cooling effect. Therefore, the smoke formed after the cigarette is burned or heated has a lower temperature, which greatly reduces the discomfort caused by the high temperature of the smoke aerosol, allowing the cigarette user to have a better smoking experience.

[0054] Example 5

[0055] This embodiment describes a heated cigarette using the aforementioned aerosol channel component, as shown in the schematic diagram. Figure 5 The heated cigarette samples were processed using the assembly method described in the first embodiment. Heated cigarette sample 5-1 was processed using the functional components of the second embodiment, heated cigarette sample 5-2 was processed using the functional components of the third embodiment, and heated cigarette sample 5-3 was processed using the functional components of the third embodiment.

[0056] Smoking and Temperature Measurement: Smoking was simulated according to the cigarette smoking model specified in the national standard GB / T19609-2004, using the Canadian Deep Inhalation (HCI) mode with the following parameters: 55 mL smoke volume, 30 s smoke interval, and 2 s smoke duration. A thermocouple temperature detector was used to measure the temperature of the cigarette smoke after 10 puffs, specifically the temperature at the center of filter section 5, 0.2 mm from the mouthpiece. A control sample was a cigarette of a certain brand, smoked using the same method.

[0057] The results of the puff-by-puff smoke temperature test are shown in the table below. The comparison of puff-by-puff temperature data shows that the cigarette prepared according to this invention has a significant cooling effect, with a maximum temperature 10℃ lower than the control sample.

[0058]

[0059] The foregoing descriptions and embodiments are provided to enable those skilled in the art to understand and apply this invention. Those skilled in the art will readily make various modifications to these contents and apply the general principles described herein to other embodiments without inventive effort. Therefore, this invention is not limited to the foregoing descriptions and embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this invention without departing from its scope should be within the protection scope of this invention.

Claims

1. A functional element for heating cigarettes, characterized in that, The device includes a channel tube, a sealing element is provided inside the channel tube, the sealing element has a peripheral portion, and the sealing element is fixedly connected to the inner wall of the channel tube through the peripheral portion; a through hole extending axially along the channel tube is also provided between the sealing element and the channel tube.

2. The functional element for heating cigarettes according to claim 1, characterized in that, The two ends of the channel tube are provided with interconnected openings, and the two ends of the channel tube are provided with chamfers.

3. The functional element for heating cigarettes according to claim 1, characterized in that, The outer surface of the channel tube is provided with multiple grooves, wherein the grooves run through the axis of the channel tube.

4. The functional element for heating cigarettes according to claim 3, characterized in that, The groove cross-section is semi-circular, rectangular, trapezoidal, or elliptical.

5. The functional element for heating cigarettes according to claim 1, characterized in that, The peripheral portion extends radially along the channel tube.

6. The functional element for heating cigarettes according to claim 1, characterized in that, The sealing element is positioned in the middle of the channel tube.

7. The functional element for heating cigarettes according to claim 1, characterized in that, The through holes are configured in multiple ways, wherein fluid entering the channel tube can pass through the through holes on the sealing member and flow from one end of the channel tube to the other end.

8. The functional element for heating cigarettes according to claim 1, characterized in that, The cross-sectional shape of the sealing component along the axial direction of the channel pipe is spherical, elliptical, spherical crown-shaped, spindle-shaped, or rectangular.

9. The functional element for heating cigarettes according to claim 1, characterized in that, The ratio of the length to the diameter of the channel tube is greater than 1.1, wherein the diameter of the channel tube is adapted to the diameter of the cigarette, that is, the outer diameter of the channel tube is not greater than the inner diameter of the cigarette.

10. The functional element for heating cigarettes according to claim 1, characterized in that, The functional components can be made of polymer materials, including but not limited to polypropylene, polycarbonate, polylactic acid, and cellulose acetate; the functional components can also be made of ceramic, glass, or metal materials.

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