A guided hollow heated cigarette
By adding a hollow guide and an internal heat-insulating liner to the front end of the hollow heated cigarette, the problems of misaligned heating element insertion and cigarette detachment are solved, improving the smoking experience and the cleanliness of the smoking device, and achieving smooth introduction of the heating source and reduction of smoke temperature.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO SHANDONG IND
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-23
AI Technical Summary
Existing hollow heated cigarettes have problems such as misaligned heating element insertion, cigarette detachment from the smoking device, and a sharp increase in draw resistance, which affect the smoking experience.
A hollow guide is added to the front end of the hollow heated cigarette. The cross-sectional area of the hollow tube of the tobacco section is smaller than that of the hollow guide. The hardness of the hollow guide is set to 80-95. It has an internal heat-insulating liner and small holes on the guide to ensure that the heat source is smoothly introduced and to reduce the heat of the heating element on the guide, preventing the cigarette from falling off and the fragments from falling off.
It solves the problems of misaligned heating element insertion and cigarette detachment, reduces smoke temperature and draw resistance, and improves the smoking experience and the cleanliness of the smoking device.
Smart Images
Figure CN224386750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a heated cigarette, specifically disclosing a hollow heated cigarette for guiding. Background Technology
[0002] Currently, all commercially available heated cigarettes with internal cores, except for Philip Morris's (PMI) iLUMA, suffer from varying degrees of the need for regular cleaning of the device and the sensory interference caused by residues when smoking different styles of heated cigarettes. Although iLUMA does not have these problems, the environmental friendliness of its electromagnetic induction heating element needs further verification. To address this issue, the applicant's patent CN201821136148.8 discloses a dual-purpose hollow cigarette, which incorporates a hollow tube into the heated cigarette, preventing the tobacco material from directly contacting the heating rod and ensuring the cleanliness of the device. However, the inventors discovered the following problems during the smoking process of the hollow cigarette:
[0003] 1. Due to the influence of parameters such as the draw resistance and compaction of the cigarette, the diameter of the hollow tube in the hollow heated cigarette cannot be designed to be too large. It is also necessary to ensure that the hollow tube of the heated cigarette is as close as possible to the central axis of the tobacco segment. However, due to the influence of the processing technology, the position of the hollow tube may sometimes have a certain error. Therefore, multiple factors may cause the heating element of the smoking device to be unable to be inserted into the hollow tube of the hollow heated cigarette when it is inserted into the smoking device, which may lead to quality accidents.
[0004] Second, during the smoking of hollow heated cigarettes, because the heating element does not exert a squeezing effect on the tobacco material of the smoke-generating carrier, but only the filter and the smoking device make surface contact, the cigarette is prone to detach from the smoking device, resulting in quality accidents during the smoking process and causing consumers to have a bad experience.
[0005] Third, the hardness of tobacco segments in heated cigarettes is mostly less than 80, and smoking devices cannot hold the tobacco segments. Otherwise, when smoking heated cigarettes, the resistance of the cigarette will increase sharply, reducing the smoking experience. Utility Model Content
[0006] In order to solve the technical problems existing in the prior art, this utility model proposes a hollow heated cigarette that achieves guidance.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A hollow heated cigarette with guidance system includes a tobacco segment, a hollow tube inside the tobacco segment, and a hollow guide component located at the distal end of the tobacco segment. The hollow cross-sectional area of the hollow tube in the tobacco segment is smaller than that of the hollow guide component. This invention, by adding a hollow guide component to the front end of the hollow heated cigarette, and ensuring that the hollow cross-sectional area of the tobacco segment's hollow tube is smaller than that of the hollow guide component, effectively solves the problem of misaligned heating element insertion when the heated cigarette is smoked.
[0009] As a further technical solution, the hollow guide component can be a hollow filter rod or a hollow paper tube.
[0010] As a further technical solution, the hollow guide is 4-10mm long, which ensures that the heating element of the cigarette is not misaligned and that the volume of the cigarette unit that cooperates with the heated cigarette is not large.
[0011] As a further technical solution, the ratio of the hollow cross-sectional area of the hollow tube to the hollow cross-sectional area of the hollow guide is 0.4-0.95, which allows the heat source of the smoking device to be smoothly guided into the embedded hollow tube when smoking a heated cigarette, thus preventing the heating element of the smoking device from being unable to be inserted into the hollow tube of the heated cigarette. At the same time, the hollow guide can prevent the smoke-generating carrier of the heated cigarette from falling off before smoking, and from producing fragments that fall off and contaminate the heat source after smoking due to charring and moisture loss caused by the heat provided by the heat source.
[0012] As a further technical solution, a heat-insulating inner liner is built into the hollow guide component to reduce the excessive heating of the guide component.
[0013] As a further technical solution, the hollow cross-sectional area of the heat-insulating inner liner tube is equal to the hollow cross-sectional area of the hollow tube of the tobacco section, or the ratio of the hollow cross-sectional area of the hollow tube of the tobacco section to the hollow cross-sectional area of the heat-insulating inner liner tube built into the guide member is 0.6-1.
[0014] As a further technical solution, the hollow guide component has a hardness of 80-95, which makes it easy for the smoking device to hold the hollow heated cigarette and prevent the cigarette from falling out of the smoking device.
[0015] As a further technical solution, several small holes are provided on the guide component to allow air from the outside to circulate with the air in the hollow part of the guide component. This further reduces the temperature of the heated cigarette smoke, reduces the heating of the guide component by the heating element, and allows for more flexible adjustment of the draw resistance of the heated cigarette, making smoking easier and more satisfying, thus providing a better user experience.
[0016] As a further technical solution, the hollow tube can be a porous heat-insulating material or a good conductor of heat with a thermal conductivity greater than 1; the ratio of the cross-sectional area of the hollow tube to the cross-sectional area of the tobacco segment is 0.05-0.4.
[0017] As a further technical solution, markings are provided on the surface of the cover near the mouthpiece of the hollow heated cigarette to prevent accidental inhalation.
[0018] The beneficial effects of this utility model are as follows:
[0019] 1. This utility model adds a hollow guide component to the front end of the hollow heated cigarette, and the hollow cross-sectional area of the hollow tube of the tobacco segment is smaller than the hollow cross-sectional area of the hollow guide component. This allows the heat source of the cigarette device to be smoothly guided into the embedded hollow tube when smoking the heated cigarette, effectively solving the problem of misalignment of the heating element. At the same time, the hollow guide component can prevent the smoke-generating carrier of the heated cigarette from falling off before smoking, and from producing fragments that fall off and contaminate the heat source after smoking due to charring and moisture loss caused by the heat provided by the heat source.
[0020] 2. This utility model designs the hardness value of the hollow guide component to be 80-95, making it easy for the smoking device to hold the hollow heated cigarette and preventing the cigarette from falling out of the device. This utility model also allows air to circulate between the outside air and the hollow part of the guide component by punching holes in the hollow guide component, which further reduces the temperature of the heated cigarette smoke, reduces the heating of the guide component by the heating element, and allows for more flexible adjustment of the draw resistance of the heated cigarette, making smoking easier and more satisfying, thus providing a better user experience.
[0021] 3. The hollow guide component of this utility model has a built-in heat-insulating inner liner, which reduces the excessive heating of the guide component.
[0022] 4. By designing the length of the hollow guide component, this utility model ensures that the heating element is not misaligned and that the volume of the cigarette that is used in conjunction with the heated cigarette is not large. Attached Figure Description
[0023] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0024] Figure 1 This is a schematic diagram illustrating the implementation of a guided hollow heated cigarette as proposed in this embodiment;
[0025] Figure 2 This is a schematic diagram of the end face of the hollow heated cigarette for guiding, as proposed in this embodiment;
[0026] Figure 3This is a cross-sectional schematic diagram of a hollow heated cigarette with an internally insulated liner tube as proposed in this embodiment.
[0027] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.
[0028] 1. Smoke-generating carrier, 2. Covering component, 3. Hollow tube, 4. Hollow guide component, 5. Guide component center hole, 6. Insulating inner lining tube. Detailed Implementation
[0029] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0031] For ease of description, the terms "far" and "near" appearing in this utility model are based on the consumer's suction state, with the end entering the consumer's mouth being the near mouth end and the end away from the consumer's mouth being the far mouth end.
[0032] As described in the background section, existing heated cigarettes with hollow tubes have the problem that the heating element of the smoking device cannot be inserted into the hollow tube of the heated cigarette. During the smoking process, the cigarette is prone to detaching from the smoking device, resulting in quality accidents during the smoking process. Furthermore, the smoking device cannot hold the tobacco segment. Otherwise, when smoking the heated cigarette, the suction resistance increases sharply, leading to a poor smoking experience and a decline in sensory quality. In order to solve the technical problems existing in the prior art, this embodiment proposes a hollow heated cigarette that can achieve guidance.
[0033] In a typical embodiment of this utility model, such as Figure 1As shown, this embodiment provides a hollow heated cigarette with a guide, including a tobacco segment and a hollow guide component. A hollow tube is disposed inside the tobacco segment, and the hollow guide component is disposed at the distal end of the tobacco segment. The hollow cross-sectional area of the hollow tube of the tobacco segment is smaller than that of the hollow guide component. This invention, by adding a hollow guide component to the front end of the hollow heated cigarette, and ensuring that the hollow cross-sectional area of the hollow tube of the tobacco segment is smaller than that of the hollow guide component, allows the heat source of the smoking device to be smoothly guided into the embedded hollow tube when the heated cigarette is smoked. This avoids the problem of the heating element of the smoking device being unable to be inserted into the hollow tube of the hollow heated cigarette. Simultaneously, when the heating element heats the tobacco segment, the air gap between the guide component and the heating element reduces the heat received by the guide component, preventing overheating. Furthermore, the hollow guide component prevents the heated cigarette's smoke-generating carrier from falling off before smoking and from producing fragments after smoking due to charring or moisture loss caused by the heat from the heating source, thus preventing contamination of the heating source.
[0034] Specifically, such as Figure 1 As shown, the tobacco segment in this embodiment includes a smoke-generating carrier 1 and a covering 2. The covering 2 wraps around the outer ring of the smoke-generating carrier 1. A hollow tube 3 is provided inside the smoke-generating carrier. A hollow guide 4 is provided at the far end of the smoke-generating carrier 1, and the covering 2 also wraps around the hollow guide 4.
[0035] The following is a detailed explanation of each part:
[0036] In this embodiment, the length of the hollow guide is selected as 4 mm to 10 mm. When the length of the hollow guide is less than 4 mm, it is too short to truly play a guiding role, and the problem of misalignment of the heating element still exists. Although the probability of misalignment is relatively small, it is still a quality problem if it occurs. Therefore, the length of the hollow guide cannot be less than 4 mm. However, when the length of the hollow guide is greater than 10 mm, the heating element of the matching smoking device will become longer, resulting in a larger overall size of the smoking device. This makes it inconvenient to use and reduces the overall user experience. Therefore, in this embodiment, the length of the hollow guide is selected as 4-10 mm, and the preferred lengths of the hollow guide in this embodiment are 6 mm, 7 mm, and 8 mm.
[0037] Furthermore, in this embodiment, the cross-sectional area of the hollow tobacco segment of the hollow-core heated cigarette is smaller than the cross-sectional area of the hollow part of the guide member, and the area ratio of the two is 0.5-0.95. The reason for this design is that when the heating element heats the tobacco segment, the guide member receives less heat and is not overheated due to the air band between the guide member and the heating element, while still playing a certain guiding role. Therefore, the cross-sectional area of the hollow tobacco segment of the hollow-core heated cigarette is smaller than the cross-sectional area of the hollow part of the guide member, and the area ratio is 0.5-0.95. Of course, in this embodiment, 0.6 and 0.7 are preferred.
[0038] Furthermore, in this embodiment, the hardness of the hollow guide is selected to be 80-95, making it easy for the smoking device to hold the hollow heated cigarette and preventing the cigarette from detaching from the device during smoking. Therefore, when the hardness of the hollow guide is less than 80, the cigarette may occasionally detach from the device. However, when the hardness of the hollow guide is greater than 95, the deformation of the hollow guide is small, making it more difficult to insert into the smoking device. At the same time, due to the heat from the heating element, the guide deforms, making it difficult to pull out the cigarette after smoking, or the guide may remain inside the smoking device, leading to cleaning. Therefore, in this embodiment, the preferred hardness values of the hollow guide are 84, 88, and 93. It should be noted that the hardness value in this embodiment is the deformation ratio of the guide; specifically, the hardness value is the ratio of the diameter after deformation to the diameter before deformation.
[0039] Furthermore, in this embodiment, the hollow guide member can be perforated in the radial direction (the direction perpendicular to the connection between the guide member and the hollow tobacco segment) during the rolling of heated cigarettes. The perforations connect the outside air with the air in the hollow part of the guide member. The purpose is to: firstly, further reduce the temperature of the heated cigarette smoke; secondly, reduce the heating of the guide member by the heating element; and thirdly, more flexibly adjust the draw resistance of the heated cigarette, making the smoking experience easier and more satisfying, thus providing a better user experience.
[0040] Furthermore, in this embodiment, the inner ring of the hollow guide member can also have a built-in heat-insulating liner tube, thereby reducing the overheating of the guide member. The built-in heat-insulating liner tube can be the same size as the hollow tube of the hollow tobacco segment, or the area of the hollow tube of the hollow tobacco segment and the built-in heat-insulating liner tube of the guide member is 0.6-1. Preferably, it is 0.8 and 1. Furthermore, the heat-insulating liner tube can be made of glass fiber tube, high silica fiber tube, silica sleeve, basalt fiber tube, etc., and the specific setting method is as follows. Figure 3 As shown.
[0041] Specifically, Figure 1 and Figure 2 As shown, the hollow guide in this embodiment can be an existing hollow filter rod or hollow paper tube. Its function is to smoothly guide the heat source into the heated cigarette when smoking it. Figure 1 and Figure 2The hollow tube 3 shown in the figure is embedded inside, which at the same time prevents Figure 1 and Figure 2 The heated cigarette smoke-generating carrier 1 shown falls off before smoking and after smoking, the smoke-generating carrier chars due to heat provided by the heat source, loses moisture, etc., resulting in the production of fragments that fall off and contaminate the heat source.
[0042] Figure 1 and Figure 2 The embedded hollow tube 3 in this embodiment is a hollow tubular component, made of high-temperature resistant, thermally conductive material or thermally reinforced composite material, and has pores; such as aluminum foil, tin foil, carbon fiber tube, glass fiber composite heat-conducting tube, high silica fiber composite heat-conducting tube, silica-sheathed composite heat-conducting tube, high silica-sheathed composite heat-conducting tube, carbon fiber composite heat-conducting tube, basalt fiber composite heat-conducting tube, etc.; in this embodiment, the wall thickness of the embedded hollow tube 3 is 0.05 ~ 0.45 mm; the porosity is 0.2– 0.75, the area ratio of the hollow tube component to the hollow smoke section in the A-A' section is 0.05-0.4, and the area ratio of the hollow tube 3 to the hollow core of the hollow filter rod 5 in the A-A' and B-B' sections is 0.4-0.95;
[0043] The embedded hollow tube 3 isolates the heating element from the smoke-generating carrier, ensuring that there is no residue of the smoke-generating carrier material after smoking the heated cigarette, thus guaranteeing the consistency of the style and characteristics of each cigarette. At the same time, it eliminates the need to clean the smoke-generating body after each use, ensuring the cleanliness of the smoking device. This makes heated cigarettes convenient and easy to use, enhancing the consumer's smoking experience.
[0044] Furthermore, since the addition of a guide to the heated cigarette makes the two ends of the cigarette potentially identical in shape, consumers may easily confuse the two ends when smoking. Therefore, in this embodiment, the product logo is marked on the surface of the cover near the mouthpiece of the heated cigarette to identify which end is near the mouthpiece and prevent accidental inhalation, while the end where the guide is located is the far mouthpiece.
[0045] The specific method for preparing the heated cigarettes mentioned above involves forming the hollow cigarette base rod and the guide rod by compounding them using a binary, ternary, or quaternary nozzle rod compounding machine.
[0046] Instructions for use: The user inserts the guide into a smoking device that matches the structure. The device automatically heats up, and once the set conditions are reached, the user can smoke the heated cigarette.
[0047] Furthermore, the hollow heated cigarette with guide proposed in this embodiment can be applied to three-section cigarettes, four-section cigarettes, five-section cigarettes, etc., and the length of the guide can be adjusted according to different cigarettes.
[0048] Finally, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A hollow heating cigarette for realizing a guide, comprising a tobacco section, a hollow tube is arranged inside the tobacco section, characterized in that, Further comprising a hollow guide, which is arranged at the distal end of the tobacco segment, and the hollow cross-sectional area of the hollow tube of the tobacco segment is smaller than that of the hollow guide.
2. A guided hollow heated cigarette according to claim 1, wherein The hollow guide can be a hollow filter rod or a hollow paper tube.
3. A guided hollow heated cigarette according to claim 1, wherein The length of the hollow guide is 4-10 mm.
4. A guided hollow heated cigarette according to claim 1, wherein The ratio of the hollow cross-sectional area of the hollow tube to that of the hollow guide is 0.4-0.
95.
5. A guided hollow heated cigarette according to claim 1, wherein The hollow guide is provided with a heat-insulating lining tube.
6. A guided hollow heated cigarette according to claim 5, wherein The hollow cross-sectional area of the heat-insulating lining tube is equal to that of the hollow tube of the tobacco segment, or the ratio of the hollow cross-sectional area of the hollow tube of the tobacco segment to that of the heat-insulating lining tube of the hollow guide is 0.6-1.
7. A guided hollow heated cigarette according to claim 1, wherein The hardness of the hollow guide is 80-95.
8. A guided hollow heated cigarette according to claim 1, wherein The guide is provided with a plurality of small holes.
9. A guided hollow heated cigarette according to claim 1, wherein The hollow tube can be a porous heat-insulating material or a good thermal conductor with a thermal conductivity greater than 1, and the ratio of the cross-sectional area of the hollow tube to that of the tobacco segment is 0.05-0.
4.
10. A guided hollow heated cigarette according to claim 1, wherein An identification is arranged on the surface of the proximal end wrapper of the hollow heated cigarette.