Heat-not-burn smoke channel and matched smoke cartridge thereof

Abstract

The utility model relates to a heat-not-burn smoke channel and a matched smoke cartridge thereof. The heat-not-burn smoke channel comprises a heating pipe and a top sealing cover arranged at the upper end of the heating pipe. A bottom support ring is arranged at the lower end of the heating pipe; a side smoke channel is arranged outside the side wall of the heating pipe; the side wall of the heating pipe is provided with an opening A communicated with the side smoke channel. On the basis of the scheme, the heating pipe is provided with an up-down penetrating through hole and an open hole A, the smoke cartridge is inserted from the bottom of the heating pipe, and the open hole A aims at enabling smoke to enter the side smoke channel through the open hole A of the heating pipe during heating. The heating pipe can heat the cigarette in a segmented mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat-not-burn of novel tobacco, and specifically relates to a smoke channel and a matching smoke cartridge design that can heat a single cigarette cartridge in sections for multiple puffs. Background Art

[0002] Currently, heat-not-burn devices on the market use specialized cartridges to heat the tobacco or reconstituted tobacco inside, producing a smoke aerosol for inhalation. The tobacco or reconstituted tobacco inside the cartridge can only be heated once, meaning a new cartridge must be replaced after a single puff. If a single cartridge could be inserted into a heating device and puffed multiple times, users could reduce the frequency of cartridge replacements and improve the user experience.

[0003] Heat-not-burn technology improves the efficiency of tobacco use, reducing the amount of tobacco used in a single cigarette cartridge to only 1 / 3-1 / 4 of that in traditional cigarettes. Currently, the lengths of tobacco segments in heat-not-burn cigarette cartridges on the market vary, but are all much shorter than those in traditional cigarettes. However, due to the requirements of heating performance, whether it is internal heating or external ring heating, the tobacco segment must ensure a certain heating length in order to generate enough heat in the cigarette segment to bake the tobacco at high temperature and produce enough smoke aerosol. Due to uneven heating, the heating segment has high-temperature and low-temperature zones. The tobacco in the low-temperature zone is not used efficiently, resulting in waste. However, through segmented heating, the tobacco that was not used efficiently in the low-temperature zone during the first heating and puffing process can continue to be heated and utilized during the second heating and puffing, further improving the efficiency of tobacco use. Compared with single-segment, single-puff cigarette cartridges, multi-segment, multi-puff cigarette cartridges can further improve the efficiency of tobacco use and reduce tobacco consumption.

[0004] The heat-not-burn cigarette cartridges currently on the market consist of a tobacco segment, a cooling segment, and a filter segment. When inhaling, the airflow enters from the bottom of the cigarette cartridge, carrying the smoke generated by the high-temperature baking of the tobacco segment into the cooling segment inside the cigarette cartridge, and then inhaled through the filter tip of the cigarette cartridge. The reason why a single cigarette cartridge cannot be heated in sections and inhaled multiple times is that: if the cigarette cartridge is divided into multiple sections for heating, if the section close to the filter tip is heated first, and then the subsequent sections are heated, the smoke generated will be absorbed by the tobacco close to the filter tip, resulting in the smoke being unable to pass through this section, and there will be no smoke or very little smoke. When the section away from the filter tip is heated first, the smoke will also be absorbed by the unheated tobacco section close to the filter tip, resulting in no smoke or very little smoke. If the smoke is to pass through the cigarette cartridge, the entire cigarette must be heated.

[0005] Aiming at the problems in the prior art where the cigarette cartridge cannot be heated in sections for multiple puffs and the smoke channel is set unreasonably, resulting in smoke easily and poor taste, a smoke channel and its matching cigarette cartridge design are provided. Utility Model Content

[0006] The technical problem to be solved by the present invention is generally to provide a heat-not-burn smoke channel and a matching smoke cartridge.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is:

[0008] In order to achieve multiple puffs and low-temperature inhalation of smoke, a heat-not-burn smoke channel is provided, including a heating tube and a top sealing cover arranged at the upper end of the heating tube; based on the above scheme, the top sealing cover contacts the top of the cigarette cartridge, sealing the top of the cigarette cartridge and at the same time serving as a limit for the insertion of the cigarette cartridge.

[0009] A bottom support ring is provided at the lower end of the heating tube;

[0010] There is a side flue gas channel outside the side wall of the heating tube;

[0011] The side wall of the heating tube is provided with an opening A that connects to the side smoke channel. Building on the previous solution, the heating tube has upper and lower through-holes and opening A. The cigarette cartridge is inserted from the bottom of the heating tube. The purpose of opening A is to allow smoke to enter the side smoke channel through opening A during heating. The heating tube can heat cigarettes in sections.

[0012] The side flue gas channels are connected to the gas mixing chamber;

[0013] The gas mixing chamber is connected with a side connecting channel;

[0014] The upper end of the side connecting channel is connected to a cigarette holder;

[0015] A side air inlet hole is provided on the outer side wall of the gas mixing chamber;

[0016] An air mixing chamber corresponding to the side air inlet hole is provided in the inner cavity of the air mixing chamber;

[0017] The cigarette cartridge body is inserted upwards from the bottom support ring into the heating tube.

[0018] As a further improvement of the above technical solution:

[0019] To ensure uniform smoke collection, the middle of the side smoke channel is connected to the mixing chamber. The high-temperature smoke generated by the high-temperature heating of the cigarette cartridge flows through the side smoke channel into the mixing chamber, and the outside air enters the mixing chamber through the side air inlet holes on the side wall of the mixing chamber. The high-temperature smoke and outside air are fully mixed in the mixing chamber, cooled and atomized to produce smoke aerosol for inhalation.

[0020] In order to achieve better air mixing and avoid smoke overflow, side air inlet holes are set at the lower part and / or the middle part of the mixing chamber.

[0021] To allow more air to enter, a gap is created in the bottom support ring or between the bottom support ring and the outer wall of the cigarette holder. The bottom support ring has a central opening, and the cigarette cartridge is inserted through the central opening. The bottom support ring fits snugly against the cigarette cartridge's outer wrapping paper, and the tightness of the fit controls the amount of outside air that enters through the gap between the bottom support ring and the cigarette cartridge's outer wrapping paper.

[0022] The heating tube is set for segmented heating from the upper end to the lower end.

[0023] When the cigarette cartridge body is in the heating state, the heating tube heats the cigarette cartridge body to generate high-temperature smoke;

[0024] When negative pressure is generated when smoking in the cigarette holder, high-temperature smoke passes through opening A and enters the side smoke channel; side stream smoke is formed in the side smoke channel and then gathered into the mixing chamber to mix with the external air entering from the side air inlet to form smoke aerosol, which rises from the side connecting channel into the cigarette holder and then comes out.

[0025] In order to achieve sufficient mixing, the side connecting channel and the mixing chamber are set to change direction vertically.

[0026] In order to achieve better mixing, the outlet of the secondary adjustment cavity is smaller than the inlet, and the inner cavity of the secondary adjustment cavity is a tapered structure with a smaller upper part and a larger lower part.

[0027] A matching cigarette cartridge with a heat-not-burn smoke channel, the matching cigarette cartridge comprising a cigarette cartridge body and a cigarette cartridge outer layer of paper arranged on the cigarette cartridge body;

[0028] The outer layer of the cigarette cartridge is made of breathable paper or is provided with openings B.

[0029] On the basis of the above scheme, the side air inlet is located on the side wall of the mixing chamber. The size of the air inlet determines the amount of external air entering the mixing chamber, and the mixing ratio of the flue gas and air is adjusted by the size of the air inlet.

[0030] Based on the above scheme, the mouthpiece is connected to the gas mixing chamber, and the smoke aerosol generated by the gas mixing chamber enters the oral cavity through the mouthpiece for inhalation. The mouthpiece includes but is not limited to a fixed mouthpiece, a disposable filter tip and other devices that can be put into the mouth for inhalation.

[0031] The utility model discloses a multi-stage and multi-puffable smoking cartridge design, comprising a tobacco section and a pulling section. The tobacco section is wrapped with a perforated rolling paper or a rolling paper with high air permeability.

[0032] Based on the above solution, the wrapping paper surrounding the tobacco segments needs to be perforated or highly permeable. This allows smoke generated by the high temperature of the tobacco to pass through the outer wrapping paper and enter the side smoke ducts. The holes in the wrapping paper can be arranged regularly or irregularly, and the holes can be formed by laser or punching. Alternatively, highly permeable wrapping paper can be used.

[0033] The cigarette cartridge body is connected to a lifting section; based on the above solution, the lifting section is used to insert and remove the cigarette cartridge, while providing a certain suction resistance value to control the amount of air flowing through the cigarette cartridge during inhalation.

[0034] The utility model realizes a multi-stage smoke channel for multiple draws. More importantly, the smoke flows through the interior of the cigarette and the side smoke channel simultaneously. When the high-temperature smoke flows inside the cigarette, it is easily absorbed by the tobacco in the lower temperature area inside the cigarette, resulting in a relatively small amount of smoke. In this patent, the top of the cigarette cartridge is closed, and the smoke flow inside the cigarette cartridge is relatively small. The smoke mainly flows in the side smoke channel. The problem of smoke flowing inside the cigarette cartridge being absorbed does not exist, thus improving the problem of smoke quantity.

[0035] Before the improvement, the mixing chamber was located at the top of the side smoke channel. The distances smoke generated by different heating sections traveled through the side smoke channel to reach the mixing chamber varied, resulting in poor consistency in the taste of different heating sections. In this patent, however, the mixing chamber is placed in the middle of the side smoke channel. The distances smoke generated by different heating sections traveled through the side smoke channel to reach the mixing chamber are similar, ensuring consistent taste across each section. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the smoke channel of an embodiment of the present utility model.

[0037] Figure 2 This is a schematic diagram of a heating tube according to an embodiment of the present invention.

[0038] Figure 3 Schematic diagram of airflow according to an embodiment of the present invention.

[0039] Figure 4 Schematic diagram of a cigarette cartridge according to an embodiment of the present invention.

[0040] Among them: 1. Top sealing cover; 2. Heating tube; 3. Opening A; 4. Side smoke channel; 5. Cartridge body; 6. Bottom support ring; 7. Side air inlet; 8. Gas mixing chamber; 9. Mouthpiece; 10. Side connecting channel; 31. Cartridge bottom; 32. Gap channel; 33. High-temperature smoke; 34. Sidestream smoke; 35. Outside air; 36. Smoke aerosol; 37. Secondary adjustment cavity; 41. End; 42. Cartridge outer paper; 43. Opening B. DETAILED DESCRIPTION

[0041] like Figure 1 As shown, the heat-not-burn flue gas channel of this embodiment includes a heating tube 2 and a top sealing cover 1 provided at the upper end of the heating tube 2;

[0042] A bottom support ring 6 is provided at the lower end of the heating tube 2;

[0043] There is a side flue gas channel 4 outside the side wall of the heating tube 2;

[0044] The side wall of the heating tube 2 is provided with openings A3 communicating with the side flue gas channel 4; the openings A3 may be a plurality of small holes or long holes.

[0045] The side smoke channel 4 is connected to the gas mixing chamber 8, which realizes the primary mixing of the smoke and the separation of heating and smoke aerosol mixing.

[0046] The gas mixing chamber 8 is connected to a side connecting channel 10 to realize the output of smoke aerosol.

[0047] The upper end of the side connecting channel 10 is connected to a mouthpiece 9 to achieve the inhalation of smoke aerosol.

[0048] A side air inlet 7 is provided on the outer side wall of the gas mixing chamber 8;

[0049] An air mixing chamber 8 corresponding to the side air inlet 7 is provided in the inner cavity of the air mixing chamber 8; under the action of the suction negative pressure, air enters to realize the generation of smoke aerosol mixing and achieve cooling treatment.

[0050] The cigarette cartridge body 5 is inserted upwards into the heating tube 2 from the bottom support ring 6 .

[0051] The middle part of the side smoke channel 4 is connected to the gas mixing chamber 8, thereby realizing the lateral output of smoke. The distance between the smoke generated by different heating sections flowing through the side smoke channel and reaching the gas mixing chamber is close, ensuring the consistency of the taste of each section.

[0052] The side air inlet 7 is provided at the lower part and / or the middle part of the mixing chamber 8 to prevent smoke from overflowing.

[0053] A gap channel 32 is provided in the bottom support ring 6 or between the bottom support ring 6 and the outer side wall of the cigarette holder 9, so as to supplement air and ensure pressure balance.

[0054] The heating tube 2 is arranged for heating in sections from the upper end to the lower end.

[0055] When the cigarette cartridge body 5 is in a heating state, the heating tube 2 heats the cigarette cartridge body 5 to generate high-temperature smoke 33;

[0056] When smoking on the mouthpiece 9 generates negative pressure, the high-temperature smoke 33 passes through the opening A3 and enters the side smoke channel 4; side stream smoke 34 is formed in the side smoke channel 4 and then collected and enters the mixing chamber 8 to mix with the external air 35 entering from the side air inlet 7 to form smoke aerosol 36, which rises from the side connecting channel 10 into the mouthpiece 9 and then comes out.

[0057] The side connecting channel 10 and the gas mixing chamber 8 are arranged in a vertical direction, so that the forward smoke collides with the smoke and then returns, achieving full mixing of the airflow, fully generating aerosol and having a consistent taste;

[0058] The cigarette cartridge body 5 and the top sealing cover 1 are snap-fitted and fixed.

[0059] like Figure 1-4 The outlet of the secondary adjustment cavity 37 is smaller than the inlet, and the inner cavity of the secondary adjustment cavity 37 is a tapered structure with a smaller upper portion and a larger lower portion.

[0060] The matching cigarette cartridge of this embodiment includes a cigarette cartridge body 5 and a cigarette cartridge outer wrapping paper 42 disposed on the cigarette cartridge body 5;

[0061] The outer wrapping paper 42 of the cigarette cartridge is breathable paper or is provided with openings B43.

[0062] The cigarette cartridge body 5 is connected to a lifting section 41 for easy taking.

[0063] As a specific application, the top fixing ring 1 can be sealed with the upper end of the heating tube 2. The bottom support ring 6 can be sealed with the lower end of the heating tube 2. The side flue gas channel 4 is located between the top sealing cover 1 and the bottom support ring 6, is sealed with the side wall of the heating tube 2, and is connected to the opening A of the heating tube 2. The gas mixing chamber 8 is located in the middle of the side flue gas channel 4 and is connected to the side flue gas channel 4. The side air inlet 7 is located on the side wall of the gas mixing chamber 8 and is connected to the outside air. The mouthpiece 9 is connected to the gas mixing chamber 8 through a channel.

[0064] like Figure 2 As shown, the heating tube 2 has through holes at the top and bottom, and has an opening 3 on the side. The heating tube 2 can be heated in multiple sections, and the heating sequence can be controlled by an electric heating circuit.

[0065] The bottom support ring 6 has a central opening, which cooperates with the cigarette cartridge 5. The size of the central opening can control the amount of external air entering between the bottom support ring 6 and the outer layer of the cigarette cartridge 5.

[0066] The side air inlet 7 is located on the side wall of the air mixing chamber 8, and the size of the side air inlet 7 can control the amount of outside air entering.

[0067] like Figure 3 As shown, outside air enters through the bottom 31 of the cigarette cartridge and mixes with the gas generated by the heating of the cigarette to form high-temperature smoke 33. The high-temperature smoke 33 enters the side smoke channel through the outer wrapping paper of the cigarette cartridge and the opening A of the heating tube. The sidestream smoke 34 in the side smoke channel enters the mixing chamber in the middle position of the side smoke channel, and is fully mixed with the outside air 35 entering through the side air inlet hole. After the cooling and atomization process, a smoke aerosol 36 that can be inhaled is formed, and finally enters the oral cavity through the mouthpiece.

[0068] like Figure 4 As shown, the cigarette cartridge is designed to be able to be smoked multiple times in multiple stages. The outer layer of the cigarette cartridge paper 42 is made of a highly breathable material or has openings B43 on it, so that the smoke generated by the heated tobacco can be sucked out through the outer layer of the paper.

[0069] Beneficial effects of the utility model:

[0070] 1. There is a side smoke channel. When the cigarette cartridge is heated in sections, the high-temperature smoke generated in the heating section passes through the outer layer of the rolling paper and directly enters the side smoke channel, preventing the high-temperature smoke from circulating in the cigarette cartridge and being absorbed by the low-temperature tobacco in the unheated section and unable to be inhaled.

[0071] 2. The gas mixing chamber is located in the middle of the side smoke channel, so that the distance between the smoke generated by heating different sections of the cigarette cartridge and the gas mixing chamber through the side smoke channel is close, ensuring the consistency of the taste of each section.

[0072] 3. The outer layer of the cigarette paper has holes or is highly breathable, so that the smoke generated by the heated tobacco in the cigarette cartridge can pass through the outer layer of the cigarette paper.

[0073] The utility model has the advantages of reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and easy use.

[0074] The present invention is fully described for the purpose of clearer disclosure, and the prior art will not be listed one by one.

[0075] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may be modified or some of the technical features thereof may be replaced with equivalents. It is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Any technical content not fully described in this utility model is generally known technology.

Claims

1. A heat-not-burn flue gas channel, characterized in that: It comprises a heating tube (2) and a top sealing cover (1) arranged at the upper end of the heating tube (2); A bottom support ring (6) is provided at the lower end of the heating tube (2); A side flue gas channel (4) is provided on the outside of the side wall of the heating tube (2); An opening A (3) communicating with the side flue gas channel (4) is provided on the side wall of the heating tube (2); The side flue gas channel (4) is connected to the gas mixing chamber (8); The gas mixing chamber (8) is connected to a side connecting channel (10); The upper end of the side connecting channel (10) is connected to a cigarette holder (9); A side air inlet hole (7) is provided on the outer side wall of the gas mixing chamber (8); An air mixing chamber (8) corresponding to the side air inlet hole (7) is provided in the inner cavity of the air mixing chamber (8); The cigarette cartridge body (5) is inserted upwards into the heating tube (2) from the bottom support ring (6).

2. The heat-without-combustion flue gas channel according to claim 1, characterized in that: The middle portion of the side smoke channel (4) is connected to the gas mixing chamber (8).

3. The heat-not-burn flue gas channel according to claim 2, characterized in that: The side air inlet (7) is in the mixing chamber (8).

4. The heat-without-combustion flue gas channel according to claim 2, characterized in that: A gap channel (32) is provided in the bottom support ring (6) or between the bottom support ring (6) and the outer side wall of the cigarette holder (9).

5. The heat-without-combustion flue gas channel according to claim 1, characterized in that: The heating tube (2) is arranged for heating in sections from the upper end to the lower end.

6. The heat-without-combustion flue gas channel according to claim 1, characterized in that: When the cigarette cartridge body (5) is in a heated state, the heating tube (2) heats the cigarette cartridge body (5) to generate high-temperature smoke (33); When negative pressure is generated by smoking the cigarette holder (9), the high-temperature smoke (33) passes through the opening A (3) and enters the side smoke channel (4); side stream smoke (34) is formed in the side smoke channel (4) and is collected and then enters the mixing chamber (8) to mix with the external air (35) entering from the side air inlet (7) to form smoke aerosol (36), which rises from the side connecting channel (10) into the cigarette holder (9) and then comes out.

7. The heat-without-combustion flue gas channel according to claim 1, characterized in that: The side connecting channel (10) and the gas mixing chamber (8) are arranged in a vertically changing direction; The cigarette cartridge body (5) is snap-connected with the top sealing cover (1).

8. The heat-without-combustion flue gas channel according to claim 1, characterized in that: The outlet of the secondary adjustment cavity (37) is smaller than the inlet, and the inner cavity of the secondary adjustment cavity (37) is a tapered structure with a smaller upper portion and a larger lower portion.

9. A tobacco cartridge with a heat-not-burn smoke channel according to claim 1, characterized in that: The matching cigarette cartridge comprises a cigarette cartridge body (5) and a cigarette cartridge outer layer wrapping paper (42) arranged on the cigarette cartridge body (5); The outer layer of the cigarette cartridge wrapping paper (42) is breathable paper or is provided with an opening B (43).

10. The cigarette cartridge according to claim 9, characterized in that: The cigarette cartridge body (5) is connected to a lifting section (41).

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