Smoke channel element and cigarette
By designing a flue gas passage element with a second flow channel and a first flow channel, the problem of insufficient cooling of cigarette smoke is solved, significantly improving the suction experience and reducing the risk of scalding.
Patent Information
- Application Number
- CN202420729609.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The smoke in cigarettes is not cooled enough before entering the consumer's mouth, resulting in poor suction feeling. Especially in the case of heating and not burning cigarettes, the problem of excessive smoke temperature is more prominent.
A flue gas passage element is designed, including a support column and a shield plate fixed at both ends of the support column. By providing a second flow channel on the shield plate, the flue gas flow rate increases, the pressure and temperature decrease. At the same time, a first flow channel with a length greater than the length of the support column is provided on the support column, extending the flue gas flow distance and allowing the flue gas to stay in the cooling section for a longer time.
It effectively improves the cooling effect of the flue gas channel elements on the flue gas, solves the problem of poor suction feeling caused by excessive flue gas temperature, and reduces the risk of scald during smoking.
Smart Images
Figure CN222675477U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of cigarettes and relates to a smoke channel element and a cigarette. Background Art
[0002] The tobacco or tobacco-containing materials in cigarettes burn to produce smoke, which often does not provide a good inhalation experience due to insufficient cooling before entering the consumer's mouth.
[0003] As people's requirements for cigarette quality and healthiness increase, new tobacco products such as heat-not-burn cigarettes have emerged in recent years. Heat-not-burn tobacco technology heats tobacco at a temperature of 200-400°C through smoldering carbon rods or heating electronic components. When the tobacco does not burn, the tobacco components can still be distilled and cracked, and smoke is released. Compared with traditional burning tobacco products, heat-not-burn cigarettes do not burn, so the harmful components released are significantly lower than those of traditional cigarettes. Under the condition of similar smoking quality, the product safety is significantly improved. However, heat-not-burn cigarettes also have the problem of insufficient smoke cooling, resulting in poor smoking experience. Utility Model Content
[0004] The utility model aims to provide a smoke channel element for cigarettes, which can achieve a good cooling effect on smoke.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] A smoke channel element comprises a support column, both ends of which are fixedly connected with a baffle plate, a first guide channel is provided on the support column, a second guide channel is provided on the baffle plate, the first guide channel and the second guide channel are connected, and the length of the first guide channel is greater than the length of the support column.
[0007] Optionally, the diameter of the support column is smaller than the diameter of the shielding plate, and a spiral guide plate is connected to the outer wall of the support column, and the first guide channel is the spiral guide groove defined by the spiral guide plate.
[0008] Optionally, the diameter of the support column is equal to the diameter of the shielding plate, and a spiral guide groove serving as a first guide channel is formed on the outer side wall of the support column.
[0009] Optionally, the second flow guide channel is a plurality of axially extending guide grooves arranged on the peripheral edge of the baffle plate.
[0010] Optionally, the second flow guide channel is a plurality of axially extending flow guide holes arranged on the surface of the baffle plate.
[0011] Optionally, the spiral guide plate is provided with one or more axially extending flow holes.
[0012] Optionally, the distance from the guide hole to the axis of the shielding plate is greater than the diameter of the support column.
[0013] Optionally, the cross-section of the spiral guide groove is one of square, trapezoidal, or semicircular, and its cross-sectional area is 0.2 to 3.5 mm 2 .
[0014] Optionally, the diameter of the flow hole is 0.2-0.5 mm.
[0015] Optionally, the surface of the smoke channel element is impregnated or coated with flavoring substances.
[0016] The utility model also discloses a cigarette, comprising a packaging tube formed by curling the forming paper, wherein a smoking section, a cooling section and a filtering section are sequentially arranged in the packaging tube, and the characteristic is that any of the above-mentioned smoke channel elements is arranged in the cooling section.
[0017] Optionally, the space between the smoke-generating section and the front baffle of the smoke channel element forms a heat-insulating section, and the space between the filtering section and the rear baffle of the smoke channel element is filled with a flavoring material to form a flavoring section.
[0018] Optionally, ventilation holes are provided on the tube wall of the flavoring section.
[0019] The beneficial effects of the utility model include:
[0020] 1. The smoke channel element provided by the utility model includes a support column and a shielding plate fixedly installed at both ends of the support column. By arranging a second guide channel on the shielding plate to reduce the cross-section of smoke flow, the flow velocity of the smoke increases, the pressure decreases, and the temperature decreases when the smoke passes through the second guide channel. By forming a first guide channel on the support column with a length significantly greater than the length of the support column, the smoke flow distance is extended, so that the smoke stays in the cooling section for a longer time, further improving the cooling effect of the smoke channel element on the smoke.
[0021] 2. The utility model also provides a cigarette having the smoke channel element. Since the smoke channel element has a better cooling effect, the cigarette can effectively avoid the problem of reduced smoking experience caused by excessively high smoke temperature when consumers smoke, and can effectively improve the smoking experience of cigarettes. At the same time, it can also avoid the safety hazard of scalding consumers caused by excessively high smoke temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is an axonometric view of the first embodiment of the smoke channel element disclosed in the utility model.
[0023] Figure 2 It is an axonometric view of the second embodiment of the smoke channel element disclosed in the utility model.
[0024] Figure 3 It is an axonometric view of the third embodiment of the smoke channel element disclosed in the utility model.
[0025] Figure 4 The utility model discloses a cross-sectional structure diagram of a heat-not-burn cigarette.
[0026] In the figure: 1, cooling section; 2, smoke-generating section; 3, filtering section; 4, forming paper; 5, supporting column; 6, shielding plate; 7, spiral guide plate; 8, guide groove; 9, flow hole; 10, guide hole. DETAILED DESCRIPTION
[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0028] Example 1
[0029] The smoke channel element disclosed in the utility model is arranged in a cigarette, such as Figure 1 As shown, the smoke channel element includes an axially extending support column 5, which is a cylindrical component, and both ends of the support column 5 are fixedly connected with a radially extending shielding plate 6, wherein the diameter of the support column 5 is smaller than the inner diameter of the packaging tube formed by the external wrapping paper of the cigarette, and the diameter of the shielding plate 6 is equal to the inner diameter of the packaging tube, which means that the side wall of the shielding plate 6 can be attached to the inner wall of the packaging tube, that is, a cavity defined by the outer surface of the smoke channel element and the inner wall of the cigarette packaging tube is formed in the cigarette. A second guide channel is formed on the shielding plate 6 that penetrates the shielding plate 6, and the smoke can pass through the second guide channel through the front shielding plate 6 into the cavity, and leave the smoke channel element from the second guide channel on the rear shielding plate 6.
[0030] Specifically, the second flow guide channel is a plurality of axially extending guide grooves 8 opened on the peripheral portion of the baffle plate 6 , and the smoke can pass through the baffle plate 6 along the guide grooves 8 .
[0031] Optionally, a plurality of guide grooves 8 are distributed at equal angles on the peripheral portion of the shielding plate 6 .
[0032] Since the smoke can only pass through the baffle plate 6 along the guide groove 8, the smoke generated after the smoke-generating section 2 is ignited or heated will increase its flow velocity when passing through the guide groove 8 due to the sudden decrease in the flow cross-section. At this time, the smoke pressure decreases, and accordingly, the smoke temperature will also decrease. In other words, the smoke flow velocity increases when the smoke passes through the guide groove 8, and the smoke temperature decreases at the same time.
[0033] In addition, the shielding plates 6 connected to the two ends of the support column 5 can also support the cigarette wrapping paper 4, thereby improving the anti-deformation ability of the packaging tube.
[0034] Taking into account the needs of subsequent assembly of the smoke channel element, the edges of the outer end faces of the baffle plate 6 are chamfered. In other words, the peripheral edge of the baffle plate 6 at the front end of the support column 5 forms a slope inclined forward, and the peripheral edge of the baffle plate 6 at the rear end of the support column 5 forms a slope inclined backward.
[0035] When the smoke enters the cavity through the guide groove 8 on the baffle plate 6 at the front end of the support column 5, it will flow backward along the axial direction. The smoke entering the cavity will directly contact the tube wall of the packaging tube, and the heat of the smoke will be quickly transferred to the air outside the packaging tube through the tube wall of the packaging tube. However, since the smoke will quickly flow to the rear baffle plate 6 and pass through the rear baffle plate 6 after entering the cavity, the residence time of the smoke in the cavity is short, and the temperature drop is correspondingly small, that is, the smoke may still have a high temperature after passing through the cavity, affecting the smoking experience. Therefore, the residence time of the smoke in the cavity can be further extended so that the smoke has a lower temperature when entering the filter section of the cigarette.
[0036] The support column 5 is provided with a continuous spiral guide plate 7 to extend the flow time of the smoke in the cigarette. The two ends of the spiral guide plate 7 are respectively connected to the shielding plates 6 at the two ends of the support column 5 and the outer edge of the spiral guide plate 7 can be attached to the inner wall of the packaging tube. In other words, the spiral guide plate 7 defines the flow path of the smoke, so when the smoke passes through the guide groove 8 on the shielding plate 6 and enters the cavity, it can only flow along the first guide channel defined by the spiral guide plate 7. Since the length of the spiral first guide channel along the spiral line direction is significantly greater than the length of the support column 5, the flow path of the smoke in the smoke channel element is extended. Accordingly, the residence time of the smoke in the smoke channel element is extended, so that the smoke has a longer heat dissipation time, can release more heat, and can also obtain a larger temperature reduction range.
[0037] Optionally, in order to further improve the cooling effect of the smoke channel element on the smoke, the cross-sectional area of the guide groove 8 is smaller than the cross-sectional area of the spiral guide groove, so that after the smoke passes through the guide groove 8 and enters the spiral guide groove, the flow velocity is reduced due to the increase in the flow cross-section, so that the smoke can flow in the spiral guide groove, i.e., the first guide channel, at a relatively low flow velocity, further extending the residence time of the smoke in the spiral guide groove.
[0038] The smoke channel element can have its surface added with flavoring substances by means of surface infiltration, coating, etc., so as to achieve the purpose of adding flavor.
[0039] The diameter of the shielding plate 6 is 4.0 mm to 8.0 mm, and the distance between the shielding plates 6 at both ends of the support column 5 is 6.0 mm to 15.0 mm.
[0040] The cross section of the guide groove 8 on the shielding plate 6 may be polygonal or semicircular, wherein the diameter of the cross section of the semicircular guide groove 8 is 0.2-0.8 mm.
[0041] The diameter of the support column 5 is 0.5-1.5 mm. If the diameter of the support column 5 is too small, the mechanical strength of the smoke channel component as a whole cannot be guaranteed, and it is easy to be damaged during subsequent assembly. If the diameter of the support column 5 is too large, the cross-section of the smoke flow is too small, which is not conducive to the full mixing of the smoke, affects the smoke flow, and leads to poor smoking experience.
[0042] Optionally, the pitch of the spiral guide plate 7 is approximately 1 / 5 to 1 / 2 of the length of the support column 5 .
[0043] Optionally, the spiral guide plate 7 has a thickness of 0.5-1.5 mm.
[0044] Optionally, the cross-section of the spiral guide groove can be a square, trapezoidal, or semicircular shape, and the cross-sectional area range is 0.2-3.5mm 2 .
[0045] Optionally, the length of the first flow guide channel along the spiral direction is 7-21 mm, and the radial length of the support column 5 is in the range of 5-15 mm.
[0046] Optionally, the number of the guide grooves 10 is 4 to 12.
[0047] like Figure 1 As shown, in this embodiment, the diameter of the baffle plate 6 is 5.6 mm, the spacing between the baffle plates 6 at both ends of the support column 5 is 7.2 mm, the diameter of the support column 5 is 0.8 mm, the diameter of the flow hole 9 is 0.2 mm, and a total of 4 flow holes 9 are arranged on the spiral guide plate 7. The diameter of the semicircular guide groove 8 on the baffle plate 6 is 0.4 mm.
[0048] like Figure 1 As shown, in this embodiment, the shielding plate 6 is configured to be in a flower shape, for example, having 6 fan-shaped petals with equal angles, and the gaps between adjacent fan-shaped petals form guide grooves 8.
[0049] In another embodiment, the difference from the embodiment 1 is that the diameter of the support column 5 is the same as the diameter of the shielding plate 6, that is, the diameter of the support column 5 is equal to the inner diameter of the packaging tube. In this embodiment, the side of the support column 5 is provided with a continuous spiral groove formed around the axis, and the continuous spiral groove is the spiral guide groove. In other words, the continuous spiral groove is the first guide channel.
[0050] Example 2
[0051] like Figure 2As shown, compared with the embodiment 1, the spiral guide plate of the embodiment is further provided with a flow hole 9.
[0052] One or more flow holes 9 extending axially and distributed around the axis of the support column 5 are also formed on the spiral guide plate 7, so that part of the smoke entering the first guide channel can pass through the spiral guide plate 7 along the flow holes 9, that is, the flow time of this part of the smoke in the spiral guide groove can be shortened. Since the aperture of the flow holes 9 is relatively small, only part of the smoke can pass through the flow holes 9, and most of the smoke still flows along the spiral guide plate 7, that is, in the first guide channel. At the same time, the smoke passing through the flow holes 9 will also increase its flow rate due to the reduction of the flow cross-section. Correspondingly, the pressure of this part of the smoke will decrease and the temperature will decrease. In other words, the flow holes 9 can also have a certain cooling effect on the smoke.
[0053] Optionally, the diameter of the flow holes 9 on the spiral guide plate 7 is 0.2 to 0.5 mm. Depending on the diameter of the flow holes 9, a total of 2 to 16 flow holes 9 are provided on the spiral guide plate 7. The different numbers and diameters of the flow holes 9 on the spiral guide plate 7 result in smoke channel elements with different suction experiences.
[0054] Optionally, the plurality of flow holes 9 are distributed at equal angles around the axis of the support column 5 .
[0055] Example 3
[0056] like Figure 3 As shown, the difference from the first embodiment is that in this embodiment, the guide groove 8 is not provided on the peripheral portion of the shielding plate 6. In other words, the second flow guide channel in this embodiment is not the guide groove 8 provided at the edge of the shielding plate 6. In this embodiment, the edges of the shielding plate 6 are all in contact with the inner wall of the packaging tube, and the shielding plate 6 is formed with a plurality of guide holes 10 distributed around the axis of the shielding plate 6 as the second flow guide channel. The distance from the guide hole 10 to the axis of the shielding plate 6 is greater than the diameter of the support column 5, so the smoke can pass through the guide hole 10 through the front shielding plate 6 into the first flow guide channel and finally pass through the rear shielding plate 6.
[0057] Optionally, in order to further improve the cooling effect of the smoke channel element on the smoke, the cross-sectional area of the guide hole 10 is smaller than the cross-sectional area of the spiral guide groove, so that after the smoke passes through the guide hole 10 and enters the spiral guide groove, the flow velocity is reduced due to the increase in the flow cross-section, so that the smoke can flow in the spiral guide groove, i.e., the first guide channel, at a relatively low flow velocity, further extending the residence time of the smoke in the spiral guide groove.
[0058] Optionally, the plurality of guide holes 10 are distributed at equal angles around the axis of the shielding plate 6 , and the number of the guide holes 10 is 4 to 12.
[0059] Example 4
[0060] The utility model also discloses a cigarette using the smoke channel element mentioned above.
[0061] like Figure 4 As shown, a cigarette comprises a smoking section 2, a filtering section 3 and a shaping paper 4, wherein the shaping paper 4 is curled to form a packaging tube with two ends open, the smoking section 2 is arranged at the front of the packaging tube, and is filled with a smoking material that generates smoke by heating or burning, the filtering section 3 is arranged at the rear of the packaging tube, and the area between the smoking section 2 and the filtering section 3 is a cooling section 1. The cooling section 1 is provided with the smoke channel element described above. The front baffle plate 6 and the smoking section 2 have a gap to form a front hollow section, and the rear baffle plate 6 and the filtering section 3 are also provided with a gap to form a rear hollow section. The front hollow section can form an insulation section to prevent the smoke channel element from being heated during the smoking process of the cigarette, so as to avoid the smoke channel element baffle plate 6 from deforming, causing the flow area of the first guide channel to be reduced, causing difficulty in smoking. The rear hollow section can be placed with flavoring materials such as popping beads to form a flavoring section, which has the effect of increasing the fragrance of the smoke.
[0062] In order to adjust the ventilation effect of the cigarette, radially extending ventilation holes can be provided on the tube wall of the packaging tube corresponding to the flavoring section.
[0063] The smoking material includes tobacco or other tobacco analogs that can produce fragrant, inhalable smoke after being heated at high temperature; and the filter segment 3 is similar to the filter tip structure of a traditional cigarette, which is filled with a filter material of one or more combinations of cellulose acetate, polypropylene, and polylactic acid.
[0064] Optionally, the filter tip may be a tow filter tip, a hollow filter tip, a special-shaped filter tip or one or more of them combined into a composite tip rod.
[0065] It should be noted that the cigarette is a traditional cigarette or a heat-not-burn cigarette.
[0066] The cigarette is assembled in the following order: smoking material, smoke passage element, filter material, and then encapsulated in a packaging tube formed by wrapping cigarette wrapping paper 4. Figure 4The assembled cigarettes were smoked in accordance with the cigarette smoking model specified in the national standard GB / T19609-2004, using the Canadian deep smoking mode (HCI), with the following smoking parameters: smoking volume 55mL, smoking interval 30s, and smoking time 2s. A thermocouple temperature detector was used to detect the smoke temperature of the cigarette after 10 puffs, including the temperature at the center of the filter rod 0.2mm from the mouth end. The comparison sample was a cigarette of a certain brand, and the smoking method was the same as the above method.
[0067] The results of the puff-by-puff smoke temperature test are shown in Table 1 below, and the smoke evaluation data are shown in Table 2. It can be seen from the puff-by-puff temperature comparison data that the cigarette prepared by the utility model has a significant cooling effect, which is 10°C lower than the maximum temperature of the control sample. From the perspective of smoke analysis parameters, the parameters of the cigarette samples of the utility model are basically equivalent to those of the control samples, and the nicotine content is slightly higher, which will bring smokers a more satisfying experience.
[0068] Table 1 Puff-by-puff smoke temperature (℃)
[0069]
[0070]
[0071] Table 2 Smoke evaluation parameters
[0072]
[0073] The above-mentioned related explanations and descriptions of the embodiments are for the purpose of facilitating the understanding and application of the present invention by ordinary technicians in the technical field. It is obvious that those familiar with the technical field can easily make various modifications to these contents and apply the general principles described herein to other embodiments without creative work. The present invention is not limited to the above-mentioned related explanations and descriptions of the embodiments. Improvements and modifications made by technicians in the field based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.
Claims
1. A smoke channel element, comprising a support column, characterized in that: Both ends of the support column are fixedly connected with a shielding plate, the support column is provided with a first guide channel, the shielding plate is provided with a second guide channel, the first guide channel and the second guide channel are connected, and the length of the first guide channel is greater than the length of the support column.
2. The smoke channel element according to claim 1, characterized in that: The diameter of the support column is smaller than the diameter of the shielding plate, and a spiral guide plate is connected to the outer side wall thereof. The first guide channel is the spiral guide groove defined by the spiral guide plate.
3. The smoke channel element according to claim 1, characterized in that: The diameter of the support column is equal to the diameter of the shielding plate, and a spiral guide groove serving as a first guide channel is formed on the outer side wall of the support column.
4. The smoke channel element according to claim 2 or 3, characterized in that: The second flow guide channels are a plurality of axially extending guide grooves arranged on the peripheral edge of the shielding plate.
5. The smoke channel element according to claim 2 or 3, characterized in that: The second flow guide channel is a plurality of axially extending flow guide holes arranged on the surface of the shielding plate.
6. The smoke channel element according to claim 2, characterized in that: The spiral guide plate is provided with one or more axially extending flow holes.
7. The smoke channel element according to claim 5, characterized in that: The distance from the guide hole to the axis of the shielding plate is greater than the diameter of the support column.
8. The smoke channel element according to claim 2 or 3, characterized in that: The cross section of the spiral guide groove is one of square, trapezoidal, or semicircular, and its cross-sectional area is 0.2 to 3.5 mm 2 .
9. The smoke channel element according to claim 6, characterized in that: The diameter of the flow hole is 0.2-0.5 mm.
10. The smoke channel element according to claim 1, characterized in that: Its surface is impregnated or coated with aromatic substances.
11. A cigarette, comprising a packaging tube formed by curling a plug-in paper, wherein a smoking section, a cooling section and a filtering section are sequentially arranged in the packaging tube, characterized in that: The temperature reduction section is provided with a smoke channel element according to any one of claims 1 to 10.
12. The cigarette according to claim 11, characterized in that: The space between the smoke generating section and the front baffle of the smoke channel element forms a heat insulation section, and the space between the filter section and the rear baffle of the smoke channel element is filled with a flavoring material to form a flavoring section.
13. The cigarette according to claim 12, characterized in that: The tube wall of the aroma-enhancing section is provided with ventilation holes.