Heat-not-burn aerosol channel and matching cartridge thereof

By designing a side smoke channel and a mixing chamber in the heated tobacco cartridge, multiple inhalations and uniform mixing of smoke are achieved, solving the problems of insufficient smoke volume and uneven inhalation in existing technologies, thus improving user experience and tobacco usage efficiency.

WO2026036280A1PCT designated stage Publication Date: 2026-02-19QINGDAO HAIDAXINXING TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/111816
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2026-02-19

AI Technical Summary

Technical Problem

Existing heated tobacco cartridges cannot achieve multiple inhalations, and unreasonable smoke channel settings result in insufficient or uneven smoke volume, affecting the user experience.

Method used

Design a heated non-combustible smoke channel and its matching e-cigarette cartridge, including a heating tube, a top sealing cap, a side smoke channel, a mixing chamber, and a mouthpiece. The side smoke channel and the mixing chamber enable segmented heating and uniform mixing of the smoke. The top of the e-cigarette cartridge is sealed to prevent the smoke from flowing inside. Outside air enters the mixing chamber through the side air inlet to mix, cool, and atomize.

Benefits of technology

It enables multiple puffs from the tobacco cartridge, with ample smoke volume and consistent flavor across each puff, improving tobacco usage efficiency and user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024111816_19022026_PF_FP_ABST
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Abstract

The present utility model relates to a heat-not-burn aerosol channel and a matching cartridge thereof. The heat-not-burn aerosol channel comprises a heating tube and a top sealing cover disposed at the upper end of the heating tube, wherein a bottom support ring is disposed at the lower end of the heating tube; a side aerosol channel is provided outside a side wall of the heating tube; and an opening A in communication with the side aerosol channel is provided in the side wall of the heating tube. On the basis of the above solution, the heating tube has a vertically penetrating through hole and the opening A, the cartridge is inserted from the bottom of the heating tube, the opening A is used for allowing, during heating, an aerosol to enter the side aerosol channel through the opening A of the heating tube, and the heating tube can heat a tobacco stick in segments.
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Description

Heating non-combustion smoke passage and its matching cartridge TECHNICAL FIELD

[0001] The utility model belongs to novel tobacco heating non-combustion technical field, concretely relates to a kind of smoke passage and its matching cartridge design that single cartridge is segmented heating and is sucked multiple times. BACKGROUND

[0002] Currently, heating non-combustion appliances on the market are matched with special cartridges, which heat tobacco or reconstituted tobacco leaves in the cartridge to generate smoke aerosol for smoking. The tobacco or reconstituted tobacco leaves in the cartridge can only be heated once, so after a single heating and smoking, a new cartridge must be replaced. If a single cartridge can be inserted into a heating appliance and smoked multiple times, the frequency of replacing cartridges can be reduced, and the user experience can be improved.

[0003] Heating non-combustion technology improves the efficiency of tobacco use, with a single cartridge containing only 1 / 3 to 1 / 4 of the tobacco in a traditional cigarette. Currently, the length of tobacco segments in heating non-combustion cartridges on the market varies, but they are all much shorter than the length of tobacco segments in traditional cigarettes. However, due to the requirement of heating performance, whether internal heating or external heating, the tobacco segment must have a certain heating length to generate enough heat in the cigarette segment to heat the tobacco at a high temperature and produce sufficient smoke aerosol. The heating segment has high and low temperature zones due to uneven heating, and the tobacco in the low temperature zone has low efficiency and is wasted. By segmenting the heating, the tobacco in the low temperature zone that is not fully utilized during the first heating and smoking process can be further heated and utilized during the second heating and smoking process, further improving the efficiency of tobacco use. Compared to single-segment single-suck cartridges, multi-segment multi-suck cartridges can further improve the efficiency of tobacco use and reduce tobacco consumption.

[0004] Currently, heating non-combustion cartridges on the market are composed of a tobacco segment, a cooling segment, and a filter segment. During smoking, air enters from the bottom of the cartridge, carrying the smoke generated by the high-temperature baking of the tobacco segment into the internal cooling segment of the cartridge, and then through the filter provided by the cartridge for smoking. The reason why a single cartridge cannot be segmented and heated for multiple sucks is that if the cartridge is segmented and heated, heating the segment closest to the filter first and then heating the subsequent segments, the generated smoke will be absorbed by the tobacco segment closest to the filter, resulting in no smoke or very little smoke passing through this segment. If the segment farthest from the filter is heated first, the smoke will also be absorbed by the unheated tobacco segment closest to the filter, resulting in no smoke or very little smoke. To allow smoke to pass through the cartridge, the entire cartridge must be heated.

[0005] To address the problems of existing technology, such as the inability of cartridges to be segmented and heated for multiple sucks and the unreasonable design of the smoke passage, which can easily result in poor taste, a smoke passage and its matching cartridge design are provided. SUMMARY

[0006] The technical problem solved by the utility model in general is to provide a heating non-combustion flue and a matched cigarette cartridge.

[0007] To solve the above problems, the utility model takes the technical scheme that

[0008] In order to realize multiple suction and low-temperature suction of flue gas, a heating non-combustion flue gas channel comprises a heating pipe and a top sealing cover arranged at the upper end of the heating pipe; on the basis of the above scheme, the top sealing cover is in contact with the top of the cigarette cartridge, thereby sealing the top of the cigarette cartridge and simultaneously achieving the function of limiting the insertion of the cigarette cartridge.

[0009] A bottom support ring is arranged at the lower end of the heating pipe.

[0010] A side flue gas channel is arranged outside the side wall of the heating pipe.

[0011] A hole A is arranged on the side wall of the heating pipe and is in communication with the side flue gas channel; on the basis of the above scheme, the heating pipe has a through hole and the hole A, the cigarette cartridge is inserted from the bottom of the heating pipe, and the hole A is used for allowing flue gas to enter the side flue gas channel through the hole A of the heating pipe during heating. The heating pipe can heat the cigarette in sections.

[0012] The side flue gas channel is connected to a gas mixing chamber.

[0013] The gas mixing chamber is connected to a side connecting channel.

[0014] A cigarette holder is connected to the upper end of the side connecting channel.

[0015] A side air inlet is arranged on the outer side wall of the gas mixing chamber.

[0016] A gas mixing chamber corresponding to the side air inlet is arranged in the inner cavity of the gas mixing chamber.

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

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

[0019] To realize the uniform entry of flue gas into the gas mixing chamber, the side flue gas channel is connected to the gas mixing chamber in the middle. The high-temperature flue gas generated by the high-temperature heating of the cigarette cartridge flows through the side flue gas channel into the gas mixing chamber, the external air enters the gas mixing chamber through the side air inlet on the side wall of the gas mixing chamber, the high-temperature flue gas and the external air are fully mixed in the gas mixing chamber, and the cooled and atomized flue gas aerosol is generated.

[0020] To realize better mixing of air and avoid flue gas overflow, the side air inlet is arranged in the lower part and / or the middle part of the gas mixing chamber.

[0021] In order to realize the entry of more air, a gap channel is arranged in the bottom support ring or between the bottom support ring and the outer wall of the mouthpiece. The bottom support ring has a central opening, the cartridge is inserted from the position of the central opening, the bottom support ring is attached to the outer layer of the cigarette paper of the cartridge, and the amount of external air entering the gap between the bottom support ring and the outer layer of the cigarette paper of the cartridge is controlled by the attachment tightness.

[0022] The heating pipe is segmented and heated from the upper end to the lower end.

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

[0024] When the mouthpiece generates negative pressure, the high-temperature smoke enters the side smoke channel after passing through the opening A; the side flow smoke is formed in the side smoke channel and then enters the mixing chamber to mix with the external air entering from the side air inlet hole to form smoke aerosol, which rises into the mouthpiece and then comes out.

[0025] In order to realize sufficient mixing, the side connecting channel is vertically arranged with the mixing chamber.

[0026] In order to realize better mixing, the outlet of the secondary adjustment cavity is smaller than the inlet, and the inner cavity of the secondary adjustment cavity has a taper structure of being small at the top and large at the bottom.

[0027] A matching cartridge for a heating non-combustion smoke channel, the matching cartridge comprises a cartridge body and a cartridge outer layer of paper arranged on the cartridge body.

[0028] The cartridge outer layer of paper is air-permeable paper or is provided with an opening B.

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

[0030] On the basis of the above scheme, the mixing chamber is connected with the mouthpiece, the smoke aerosol generated by the mixing chamber enters the oral cavity through the mouthpiece inlet for smoking, and the mouthpiece includes but is not limited to a fixed mouthpiece, a disposable filter, and other devices that can be inhaled into the mouth.

[0031] A multi-segment and multi-puff cartridge design, comprising a tobacco segment and a pull segment, the tobacco segment is wrapped with a perforated paper or a paper with high air permeability.

[0032] On the basis of the above scheme, the paper wrapped around the tobacco segment needs to be perforated or selected to have high air permeability, so that the smoke generated by the high-temperature tobacco can pass through the outer layer of paper and enter the side smoke channel. The holes on the paper can be arranged regularly or irregularly, and the holes can be formed by laser or punching, or a paper with high air permeability can be used.

[0033] The smoke cartridge body is connected with a pulling section; on the basis of the above scheme, the pulling section is used for inserting and pulling out the smoke cartridge, and meanwhile, a certain suction resistance value is provided to control the air flow passing through the smoke cartridge during suction.

[0034] The utility model discloses a multi-section multi-time suction smoke passage, more importantly, the smoke simultaneously flows through the inside of cigarette and side smoke passage, and the high-temperature smoke is easily absorbed by the tobacco at the low-temperature place inside the cigarette when flowing in the cigarette, resulting in the total amount of smoke being less.

[0035] The mixed gas bin in the prior art is arranged at the top of the side smoke passage, the smoke generated by different heating sections flows through the side smoke passage to the mixed gas bin at different distances, resulting in poor consistency of the suction taste of different heating sections. BRIEF DESCRIPTION OF DRAWINGS

[0036] Fig. 1 is a schematic diagram of the smoke passage of the utility model.

[0037] Fig. 2 is a schematic diagram of the heating pipe of the utility model.

[0038] Fig. 3 is a schematic diagram of the air flow of the utility model.

[0039] Fig. 4 is a schematic diagram of the smoke cartridge of the utility model.

[0040] Wherein: 1, top sealing cover; 2, heating pipe; 3, opening A; 4, side smoke passage; 5, smoke cartridge body; 6, bottom support ring; 7, side air inlet hole; 8, mixed gas bin; 9, cigarette holder; 10, side connecting passage; 31, smoke cartridge bottom; 32, gap passage; 33, high-temperature smoke; 34, side flow smoke; 35, external air; 36, smoke aerosol; 37, secondary adjustment cavity; 41, end; 42, outer layer of smoke cartridge; 43, opening B. DETAILED DESCRIPTION

[0041] As shown in Fig. 1, the heating non-combustion smoke passage of the utility model comprises a heating pipe 2 and a top sealing cover 1 arranged at the upper end of the heating pipe 2.

[0042] A bottom support ring 6 is arranged at the lower end of the heating pipe 2.

[0043] A side smoke passage 4 is arranged outside the side wall of the heating pipe 2.

[0044] The side wall of the heating pipe 2 is provided with an opening A3 communicating with the side flue gas passage 4; it can be a plurality of small holes or a long hole.

[0045] The side flue gas passage 4 is connected to the mixing chamber 8; it realizes the mixing of the flue gas, and realizes the separation of heating and flue gas aerosol mixing.

[0046] The mixing chamber 8 is connected to the side connecting passage 10; it realizes the output of the flue gas aerosol.

[0047] The upper end of the side connecting passage 10 is connected to the cigarette holder 9; it realizes the suction of the flue gas aerosol.

[0048] The side wall of the mixing chamber 8 is provided with a side air inlet hole 7;

[0049] The mixing chamber 8 is provided in the inner cavity of the mixing chamber 8 corresponding to the side air inlet hole 7; under the action of suction negative pressure, air enters, realizes the generation of flue gas aerosol mixing, and realizes the cooling treatment.

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

[0051] The middle part of the side flue gas passage 4 is connected to the mixing chamber 8, so as to realize the lateral output of the flue gas, and the flue gas generated by different heating sections flows through the side flue gas passage to the mixing chamber, the distance is close, which ensures the consistency of the taste of each section.

[0052] The side air inlet hole 7 is arranged at the lower part and / or the middle part of the mixing chamber 8, so as to avoid the overflow of flue gas.

[0053] The gap passage 32 is arranged 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 realize the supplement of air and ensure the pressure balance.

[0054] The heating pipe 2 is segmented from the upper end to the lower end.

[0055] When the cartridge body 5 is in a heating state, the heating pipe 2 heats the cartridge body 5 to generate high-temperature flue gas 33;

[0056] When the cigarette holder 9 generates negative pressure, the high-temperature flue gas 33 enters the side flue gas passage 4 after passing through the opening A3; the side flue gas 34 is formed in the side flue gas passage 4 and is collected into the mixing chamber 8, and then mixed with the external air 35 entering from the side air inlet hole 7 to form the flue gas aerosol 36, which rises into the cigarette holder 9 and then comes out.

[0057] The side connecting passage 10 is vertically arranged with the mixing chamber 8, so that the flue gas moving forward collides and turns back, realizing full mixing of the airflow, full generation of the aerosol, and consistent taste;

[0058] The cartridge body 5 is clamped with the top sealing cover 1 to realize clamping and fixing.

[0059] As shown in Figs. 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 has a tapered structure with a small upper part and a large lower part.

[0060] The matched cartridge of the embodiment includes a cartridge body 5 and a cartridge outer wrapper 42 arranged on the cartridge body 5.

[0061] The cartridge outer wrapper 42 is air-permeable paper or is provided with an opening B43.

[0062] The cartridge body 5 is connected with a pulling section 41 for convenient taking.

[0063] As a specific application, the top fixing ring 1 can be sealingly matched with the upper end of the heating pipe 2, the bottom supporting ring 6 can be sealingly matched with the lower end of the heating pipe 2, the side smoke passage 4 is located between the top sealing cover 1 and the bottom supporting ring 6, is sealingly matched with the side wall of the heating pipe 2, and is connected with the opening A of the heating pipe 2, the gas mixing chamber 8 is located at the middle position of the side smoke passage 4 and is connected with the side smoke passage 4, the side air inlet 7 is located on the side wall of the gas mixing chamber 8 and is communicated with the outside air, and the mouthpiece 9 is connected with the gas mixing chamber 8 through a passage.

[0064] As shown in Fig. 2, the heating pipe 2 is a through hole penetrating from top to bottom, has an opening 3 on the side, and can be heated in multiple sections, and the heating sequence can be controlled through an electric heating circuit.

[0065] The center opening of the bottom supporting ring 6 is matched with the cartridge 5, and the amount of outside air entering between the bottom supporting ring 6 and the outer wrapper of the cartridge 5 can be controlled through the size of the center opening.

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

[0067] As shown in Fig. 3, the outside air enters through the bottom of the cartridge 31, mixes with the gas generated by heating of the cigarette to form high-temperature smoke 33, the high-temperature smoke 33 passes through the outer wrapper of the cartridge and the opening A of the heating pipe to enter the side smoke passage, the side flow smoke 34 in the side smoke passage enters the gas mixing chamber at the middle position of the side smoke passage, mixes with the outside air 35 entering through the side air inlet, and after a cooling and atomization process, forms smoke aerosol 36 that can be inhaled, and finally enters the oral cavity through the mouthpiece.

[0068] As shown in Fig. 4, the cartridge designed for multiple section and multiple suction has an outer wrapper 42 made of high air-permeable material or having an opening B43 on the surface, so that the smoke generated by heating of the tobacco can be sucked out through the outer wrapper.

[0069] The beneficial effects of the utility model are as follows:

[0070] 1. Exist side flue gas passage, the high temperature flue gas produced by the heating section when the cartridge is segmented heated directly enters the side flue gas passage through the outer layer of paper, avoiding the high temperature flue gas circulating in the cartridge to be absorbed by the low temperature tobacco of the unheated section and unable to be smoked out.

[0071] 2. The gas mixing chamber is located at the middle position of the side flue gas passage, so that the distances of the flue gas produced by different sections of the cartridge from the gas mixing chamber through the side flue gas passage are close, ensuring the consistency of the taste of each section.

[0072] 3. The outer layer of paper of the cartridge has holes or high air permeability, so that the flue gas produced by the tobacco in the cartridge can be transmitted through the outer layer of paper.

[0073] The utility model discloses reasonable in design, low in cost, solid and durable, safe and reliable, easy to operate, time and labor saving, capital saving, compact structure and convenient to use.

[0074] The utility model fully describes is in order to disclose more clearly, and for prior art is no longer enumerated one by one.

[0075] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; as the person skilled in the art combines the multiple technical solutions of the utility model, it is obvious; these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the utility model embodiments. The technical contents not described in the utility model are all known technologies.

Claims

1. A heated, non-combustible smoke passage, characterized by: The heating pipe (2) and the top sealing cover (1) arranged at the upper end of the heating pipe (2); The bottom support ring (6) is arranged at the lower end of the heating pipe (2); The side flue gas passage (4) is arranged outside the side wall of the heating pipe (2); The opening A (3) is arranged on the side wall of the heating pipe (2) and communicates with the side flue gas passage (4); The side flue gas passage (4) is connected with the mixing chamber (8); The side connecting passage (10) is connected with the mixing chamber (8); The side connecting passage (10) is connected with the cigarette holder (9); The side air inlet hole (7) is arranged on the outer side wall of the mixing chamber (8); The mixing chamber (8) is arranged in the inner cavity of the mixing chamber (8) and corresponds to the side air inlet hole (7); The cigarette body (5) is inserted into the heating pipe (2) from the bottom support ring (6).

2. The heated, smokeless tobacco vapor passage of claim 1, wherein: The side flue gas passage (4) is connected with the mixing chamber (8).

3. A heated, smokeless tobacco passage according to claim 2, characterised in that: The side air inlet hole (7) is arranged on the outer side wall of the mixing chamber (8).

4. The heated, but not combusted, smoke passage according to claim 2, characterized in that: The gap passage (32) is arranged 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 heated, but not combusted, smoke passage according to claim 1, characterized in that: The heating pipe (2) is segmented and heated from the upper end to the lower end.

6. The heated, but not combusted, smoke passage according to claim 1, characterized in that: When the cigarette body (5) is in a heating state, the heating pipe (2) heats the cigarette body (5) to generate high-temperature flue gas (33); When the cigarette holder (9) is smoked to generate negative pressure, the high-temperature flue gas (33) enters the side flue gas passage (4) through the opening A (3); the side flue gas (34) is formed in the side flue gas passage (4) and is collected into the mixing chamber (8) to mix with the external air (35) entering from the side air inlet hole (7) to form the flue gas aerosol (36), which rises into the cigarette holder (9) through the side connecting passage (10) and then comes out.

7. The heated, but not combusted, smoke passage according to claim 1, characterized in that: The side connecting passage (10) is arranged vertically and changes direction with the mixing chamber (8); The cigarette body (5) is arranged in the top sealing cover (1).

8. The heated, but not combusted, smoke passage 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) has a taper structure of being small at the top and large at the bottom.

9. A kit cartridge for the heated but not combusted smoke passage according to claim 1, characterized by: The matched cigarette includes the cigarette body (5) and the cigarette outer wrapping paper (42) arranged on the cigarette body (5); The cigarette outer wrapping paper (42) is air-permeable paper or is provided with the opening B (43).

10. The cartridge of claim 9, wherein: The cigarette body (5) is connected with the pulling section (41).

Citation Information

Patent Citations

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    CN107594622A

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