A heating-not-burning smoking set and a heating assembly thereof

Abstract

The utility model discloses a kind of heating not combustible smoking set and heating assembly thereof, it is related to smoking set technical field.The heating assembly includes heating body inner tube, the heating body inner tube outside is equipped with heating structure, the air outlet end of the heating body inner tube is connected with first porous heat pipe, the pipe wall of the first porous heat pipe is equipped with several pore structures, heat insulation is carried out using air in pore structure, so that first porous heat pipe can have good heat insulation performance, slow heat transfer, can hinder the heat transfer of heating assembly to cigarette end, so that the heat generated by heating assembly maximum limit acts on cigarette baking, shorten preheating time, also can avoid the problem of cigarette end temperature too high, improve user experience;In addition, in the process of flue gas output, heat exchange is carried out with flue gas by first porous heat pipe, the temperature of flue gas can be reduced, thereby avoiding the problem of flue gas temperature too high, further improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of smoking device technology, and in particular to a heated non-combustible smoking device and its heating component. Background Technology

[0002] Heated tobacco products (HNB) are a new type of tobacco product that releases smoke by heating tobacco instead of burning it, aiming to reduce the health hazards of smoking. HNB devices use a heating element to heat inhaled cold air, which then vaporizes the tobacco to produce smoke. During the use of an HNB device, the time from when the heating element is powered on until the first puff of vapor is produced is called the preheating time. To provide a better vaping experience, the preheating time of HNB devices needs to be sufficiently short. Currently, HNB devices achieve this short preheating time by increasing the power to quickly raise the temperature of the heating element. However, high-power operation of the heating element generates a large amount of heat in a short time, leading to excessively high temperatures at the mouthpiece and in the vapor, affecting the user's vaping experience. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a heated non-combustible smoke device and its heating component. The smoke device has a short preheating time and can avoid the problem of excessive temperature at the mouthpiece and smoke, thereby improving the user experience.

[0004] The first aspect of this utility model provides a heating assembly, including a heating inner tube, a heating structure on the outer side of the heating inner tube, and a first porous heat-insulating tube connected to the air outlet end of the heating inner tube, the first porous heat-insulating tube having a plurality of pore structures on its tube wall.

[0005] The second aspect of this utility model provides a heated non-combustible smoke appliance, including a heating assembly. The heating assembly includes a heating inner tube, and a heating structure is provided on the outer side of the heating inner tube. The gas outlet end of the heating inner tube is connected to a first porous heat-insulating tube, and the wall of the first porous heat-insulating tube is provided with a plurality of pore structures.

[0006] The beneficial technical effects of this utility model are as follows: The above-mentioned heated non-combustible tobacco device and its heating component include a heating inner tube. The outlet end of the heating inner tube is connected to a first porous heat-insulating tube. The tube wall of the first porous heat-insulating tube has a plurality of pore structures, and the air in the pore structure is used for heat insulation, so that the first porous heat-insulating tube can have good heat insulation performance, slow down heat transfer, and prevent the heat of the heating component from being transferred to the mouthpiece end. This allows the heat generated by the heating component to act on the tobacco stick for heating to the maximum extent, shortening the preheating time and avoiding the problem of excessive temperature at the mouthpiece end, thus improving the user experience. In addition, during the process of smoke output, heat exchange between the first porous heat-insulating tube and the smoke can reduce the temperature of the smoke, thereby avoiding the problem of excessively high smoke temperature and further improving the user experience. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the external structure of the heated non-combustible smoke appliance of this utility model;

[0008] Figure 2 This is an overall cross-sectional view of the heated non-combustible smoke device in Embodiment 1 of this utility model;

[0009] Figure 3 for Figure 2 An enlarged schematic diagram of the heating component;

[0010] Figure 4 This is a cross-sectional view of the second porous heat-insulating tube in Embodiment 1 of this utility model;

[0011] Figure 5 This is a schematic diagram of the spiral air passage component in Embodiment 1 of this utility model;

[0012] Figure 6 This is a schematic diagram of the airflow direction of the second porous heat-insulating tube during suction in Embodiment 1 of this utility model;

[0013] Figure 7 This is an overall cross-sectional view of the heated non-combustible smoke device in Embodiment 2 of this utility model;

[0014] Figure 8 for Figure 7 An enlarged schematic diagram of the heating component;

[0015] Figure 9 This is a cross-sectional view of the second porous heat-insulating tube in Embodiment 2 of this utility model;

[0016] Figure 10 This is a schematic diagram of the structure of the miniature air intake component in Embodiment 2 of this utility model;

[0017] Figure 11 This is a schematic diagram of the airflow direction during suction in the second porous heat-insulating tube of this utility model embodiment two.

[0018] Explanation of reference numerals in the attached figures:

[0019] 11-Heating component housing, 12-Battery compartment housing, 13-Bottom cover, 14-Top cover, 15-Suction port, 20-Heating component, 21-Heating element inner tube, 22-Heating structure, 23-First porous heat-insulating tube, 231-Porous structure, 24-Second porous heat-insulating tube, 241-Air inlet, 242-Miniature air inlet component, 243-Cross-shaped perforation, 25-Spiral air passage component, 261-First electrode ring, 262-Second electrode ring, 271-First electrode, 272-Second electrode, 28-Temperature acquisition device, 29-Insulation layer, 30-PCB, 40-Battery. Detailed Implementation

[0020] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1:

[0022] like Figure 1 , Figure 2 As shown in this embodiment of the invention, the heated non-combustible (HNB) smoking device includes a shell, a heating element 20, a PCB 30, and two batteries 40. The shell includes a heating element shell 11, a battery compartment shell 12, a bottom cover 13, and a top cover 14. The bottom cover 13 is fixedly connected to the lower end of the battery compartment shell 12, the upper end of the battery compartment shell 12 is fixedly connected to the lower end of the heating element shell 11, and the upper end of the heating element shell 11 is fixedly connected to the top cover 14. A suction port 15 is provided at the center of the top cover 14. The two batteries 40 are connected in series inside the battery compartment shell 12. The PCB 30 is installed inside the battery compartment shell 12 and located above the batteries 40, and is electrically connected to the batteries 40. The heating element 20 is installed inside the heating element shell 11 and is electrically connected to the PCB 30.

[0023] In this embodiment, the HNB (Heated Tobacco Pod) uses two batteries (40) connected in series for power supply. Compared to existing HNBs that use a single battery, the power supply voltage of the HNB in ​​this embodiment is twice that of existing HNBs. According to the power calculation formula P = U*I, at the same power, the operating current of the HNB in ​​this embodiment is lower, resulting in a lower current in the heating component 20 during high-power preheating. This reduces the impact pressure of the current on the battery and PCB, improving safety and simplifying the design requirements of the battery and PCB. Furthermore, for batteries and PCBs with the same current resistance, the heating component 20 can be matched with higher power for preheating, resulting in a shorter preheating time. For example, it can achieve the technical effect of obtaining the first puff of smoke after preheating for 5-15 seconds. Of course, in other embodiments, three, four, or more batteries can be connected in series for power supply, thereby achieving the technical effects of reducing the impact pressure of the current on the battery and PCB and shortening the preheating time.

[0024] like Figure 3 As shown, the heating assembly 20 includes a heating inner tube 21, a heating structure 22 on the outer side of the heating inner tube 21, a temperature acquisition device 28 mounted on the heating structure 22, a first porous heat-insulating tube 23 connected to the air outlet of the heating inner tube 21, and a second porous heat-insulating tube 24 connected to the air inlet of the heating inner tube 21. The heating inner tube 21 is made of high thermal conductivity ceramic, sapphire, or glass. The high thermal conductivity ceramic is preferably alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. The heating structure 22 is a heating layer composed of heating materials, such as resistance wire, carbon fiber heating wire, heating resistance film, or graphene heating coating.

[0025] The first porous heat-insulating tube 23 can be made of ceramic, sapphire, or glass. Preferably, the ceramic is alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. The second porous heat-insulating tube 24 can also be made of ceramic, sapphire, or glass. Preferably, the ceramic is alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. When the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 are made of ceramic, the porous structure of the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 can be prepared by pre-drilling holes and then sintering or by drilling holes after sintering. When the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 are made of glass or sapphire, the porous structure of the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 can be prepared by laser drilling.

[0026] See you again Figure 3In this embodiment, the first porous heat-resistant tube 23 is fixedly connected to the inner tube 21 of the heating element using a first electrode ring 261, and the second porous heat-resistant tube 24 is fixedly connected to the inner tube 21 of the heating element using a second electrode ring 262. The first electrode ring 261 and the second electrode ring 262 can be made of one or more of nickel, silver, and copper, or they can be made of other metals besides nickel, silver, and copper and plated with a nickel coating, silver coating, or copper coating. Besides their fixing function, the first electrode ring 261 and the second electrode ring 262 also serve as electrical connections. Specifically, the first electrode ring 261 is electrically connected to the PCB 30 via a first electrode 271, and the second electrode ring 262 is electrically connected to the PCB 30 via a second electrode 272, thereby achieving an electrical connection between the heating component 20 and the PCB 30. Of course, in other embodiments, the first porous heat-resistant tube 23 can also be fixedly connected to the inner tube 21 of the heating element using structural adhesive, and the second porous heat-resistant tube 24 can also be fixedly connected to the inner tube 21 of the heating element using structural adhesive.

[0027] See you again Figure 3 The first porous heat-insulating tube 23 has a plurality of pore structures 231 on its tube wall. In this embodiment, the pore structure 231 is a cylindrical straight hole; of course, in other embodiments, the pore structure 231 can also be a cuboid straight hole, a frustum-shaped straight hole, or other shaped hole structures. The presence of a plurality of pore structures 231 on the tube wall of the first porous heat-insulating tube 23 utilizes the air within the pore structures for heat insulation, enabling the first porous heat-insulating tube 23 to possess good heat insulation performance, slowing down heat transfer, and hindering the transfer of heat from the heating component 20 to the mouthpiece end. This allows the heat generated by the heating component 20 to act on the cigarette for heating to the maximum extent, shortening the preheating time and preventing the mouthpiece end from overheating, thus improving the user experience. Furthermore, during the smoke output process, heat exchange occurs between the first porous heat-insulating tube 23 and the smoke, reducing the smoke temperature and preventing excessively high smoke temperatures, further enhancing the user experience.

[0028] like Figure 4 As shown, the second porous heat-insulating tube 24 has a plurality of air inlets 241 on its tube wall. In this embodiment, the air inlets 241 are flared holes, and the diameter of the outer end of the air inlet 241 on the tube wall of the second porous heat-insulating tube 24 is larger than the diameter of the inner end of the air inlet 241 on the tube wall of the second porous heat-insulating tube 24. Figure 3 , 5 As shown, a spiral air passage component 25 is installed inside the second porous heat-insulating tube 24.

[0029] like Figure 6As shown, during the inhalation process, since the air inlet 241 is a funnel-shaped hole, air can easily flow in from the end with the larger diameter of the air inlet 241, and then converge with the airflow in the spiral air passage 25 through the end with the smaller diameter of the air inlet 241, ensuring the amount of air intake during the inhalation process. The inhaled air forms a spiral airflow through the spiral air passage 25, and is transmitted upward to the heating component 20 for heating and baking of the cigarette.

[0030] In this embodiment, the air inlet 241 adopts a trumpet-shaped design, which makes it easy for air to enter the second porous heat-insulating tube 24 during inhalation. When inhalation stops, it is difficult for the air inside the device to flow out, retaining the air in the heating element tube 21 for sufficient heating. This not only reduces energy consumption but also prevents the smoke from dissipating and affecting the smoke concentration. The spiral air passage 25 adopts a spiral structure design, which can generate traction force, allowing the gas to form a spiral airflow before entering the cigarette, making it easier to transfer upwards. At the same time, the spiral air passage 25 increases the gas heat exchange path. The heat of the second porous heat-insulating tube 24 itself can be transferred to the spiral airflow through heat conduction. The spiral airflow can carry away some heat. During inhalation, the air can be preheated when it enters the spiral air passage 25 through the trumpet-shaped hole, which not only reduces heat loss but also improves the cigarette heating efficiency, indirectly reducing energy consumption.

[0031] Example 2:

[0032] like Figure 7 As shown in this embodiment of the invention, the heated non-combustible (HNB) smoking device includes a shell, a heating element 20, a PCB 30, and two batteries 40. The shell includes a heating element shell 11, a battery compartment shell 12, a bottom cover 13, and a top cover 14. The bottom cover 13 is fixedly connected to the lower end of the battery compartment shell 12, the upper end of the battery compartment shell 12 is fixedly connected to the lower end of the heating element shell 11, and the upper end of the heating element shell 11 is fixedly connected to the top cover 14. A suction port 15 is provided at the center of the top cover 14. The two batteries 40 are connected in series inside the battery compartment shell 12. The PCB 30 is installed inside the battery compartment shell 12 and located above the batteries 40, and is electrically connected to the batteries 40. The heating element 20 is installed inside the heating element shell 11 and is electrically connected to the PCB 30.

[0033] In this embodiment, the HNB (Heated Tobacco Pod) uses two batteries (40) connected in series for power supply. Compared to existing HNBs that use a single battery, the power supply voltage of the HNB in ​​this embodiment is twice that of existing HNBs. According to the power calculation formula P = U*I, at the same power, the operating current of the HNB in ​​this embodiment is lower, resulting in a lower current in the heating component 20 during high-power preheating. This reduces the impact pressure of the current on the battery and PCB, improving safety and simplifying the design requirements of the battery and PCB. Furthermore, for batteries and PCBs with the same current resistance, the heating component 20 can be matched with higher power for preheating, resulting in a shorter preheating time. For example, it can achieve the technical effect of obtaining the first puff of smoke after preheating for 5-15 seconds. Of course, in other embodiments, three, four, or more batteries can be connected in series for power supply, thereby achieving the technical effects of reducing the impact pressure of the current on the battery and PCB and shortening the preheating time.

[0034] like Figure 8 As shown, the heating assembly 20 includes a heating inner tube 21, a heating structure 22 on the outer side of the heating inner tube 21, a temperature acquisition device 28 mounted on the heating structure 22, a first porous heat-insulating tube 23 connected to the air outlet of the heating inner tube 21, and a second porous heat-insulating tube 24 connected to the air inlet of the heating inner tube 21. The heating inner tube 21 is made of high thermal conductivity ceramic, sapphire, or glass. The high thermal conductivity ceramic is preferably alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. The heating structure 22 is a heating layer composed of heating materials, such as resistance wire, carbon fiber heating wire, heating resistance film, or graphene heating coating.

[0035] The first porous heat-insulating tube 23 can be made of ceramic, sapphire, or glass. Preferably, the ceramic is alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. The second porous heat-insulating tube 24 can also be made of ceramic, sapphire, or glass. Preferably, the ceramic is alumina ceramic, aluminum nitride ceramic, or boron nitride ceramic, and the glass is preferably borosilicate glass or quartz glass. When the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 are made of ceramic, the porous structure of the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 can be prepared by pre-drilling holes and then sintering or by drilling holes after sintering. When the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 are made of glass or sapphire, the porous structure of the first porous heat-insulating tube 23 and the second porous heat-insulating tube 24 can be prepared by laser drilling.

[0036] See you again Figure 8In this embodiment, the first porous heat-resistant tube 23 is fixedly connected to the inner tube 21 of the heating element using a first electrode ring 261, and the second porous heat-resistant tube 24 is fixedly connected to the inner tube 21 of the heating element using a second electrode ring 262. The first electrode ring 261 and the second electrode ring 262 can be made of one or more of nickel, silver, and copper, or they can be made of other metals besides nickel, silver, and copper and plated with a nickel coating, silver coating, or copper coating. Besides their fixing function, the first electrode ring 261 and the second electrode ring 262 also serve as electrical connections. Specifically, the first electrode ring 261 is electrically connected to the PCB 30 via a first electrode 271, and the second electrode ring 262 is electrically connected to the PCB 30 via a second electrode 272, thereby achieving an electrical connection between the heating component 20 and the PCB 30. Of course, in other embodiments, the first porous heat-resistant tube 23 can also be fixedly connected to the inner tube 21 of the heating element using structural adhesive, and the second porous heat-resistant tube 24 can also be fixedly connected to the inner tube 21 of the heating element using structural adhesive.

[0037] See you again Figure 8 The first porous heat-insulating tube 23 has a plurality of pore structures 231 on its tube wall. In this embodiment, the pore structure 231 is a cylindrical straight hole; of course, in other embodiments, the pore structure 231 can also be a cuboid straight hole, a frustum-shaped straight hole, or other shaped hole structures. The presence of a plurality of pore structures 231 on the tube wall of the first porous heat-insulating tube 23 utilizes the air within the pore structures for heat insulation, enabling the first porous heat-insulating tube 23 to possess good heat insulation performance, slowing down heat transfer, and hindering the transfer of heat from the heating component 20 to the mouthpiece end. This allows the heat generated by the heating component 20 to act on the cigarette for heating to the maximum extent, shortening the preheating time and preventing the mouthpiece end from overheating, thus improving the user experience. Furthermore, during the smoke output process, heat exchange occurs between the first porous heat-insulating tube 23 and the smoke, reducing the smoke temperature and preventing excessively high smoke temperatures, further enhancing the user experience.

[0038] like Figure 9 , Figure 10 As shown, the second porous heat-insulating tube 24 has several air inlets 241 on its wall. In this embodiment, the air inlets 241 are cylindrical straight holes, and a miniature air inlet 242 is installed inside each air inlet 241. The miniature air inlet 242 is made of silicone and has a one-way open cross-shaped perforation 243. The cross-shaped perforation 243 opens during suction and closes when suction stops. Figure 8 As shown, a spiral air passage component 25 is installed inside the second porous heat-insulating tube 24.

[0039] like Figure 11As shown, during the inhalation process, under the action of suction, the one-way blade (cross-shaped perforation 243) of the micro air passage 242 opens inward, allowing air to enter the spiral air passage 25 and converge with the airflow in the spiral air passage 25. The inhaled air forms a spiral airflow through the spiral air passage 25, which is then transmitted upward to the heating component 20 for heating and baking the cigarette. When inhalation stops, the one-way blade (cross-shaped perforation 243) of the micro air passage 242 is closed, ensuring that the air in the air passage does not flow out. This allows the gas to be retained to the maximum extent in the heating body tube 21 for sufficient heating when not inhaling, improving heating efficiency and reducing energy consumption. It also prevents the smoke from dissipating and affecting the smoke concentration.

[0040] In this embodiment, the air inlet 241 is equipped with a miniature air passage 242. The miniature air passage 242 opens inward during inhalation and closes when inhalation stops, ensuring that the air in the air passage does not flow out. This maximizes the retention of gas within the heating element tube 21 for thorough heating, which not only improves heating efficiency and reduces energy consumption but also prevents the smoke from dissipating and affecting the smoke concentration. The spiral air passage 25 adopts a spiral structure design, which can generate traction force, allowing the gas to form a spiral airflow before entering the cigarette, making it easier to transfer upwards. At the same time, the spiral air passage 25 increases the gas heat exchange path. The heat of the second porous heat-insulating tube 24 itself can be transferred to the spiral airflow through heat conduction. The spiral airflow can carry away some heat. During inhalation, the air entering the spiral air passage 25 can be preheated, which not only reduces heat loss but also improves the cigarette baking efficiency, indirectly reducing energy consumption.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments. All equivalent changes or modifications made within the scope of the claims should fall within the protection scope of the present utility model.

Claims

1. A heating assembly, characterized in that: The heating assembly includes a heating inner tube, a heating structure is provided on the outside of the heating inner tube, and a first porous heat-insulating tube is connected to the air outlet end of the heating inner tube. The first porous heat-insulating tube has a plurality of pore structures on its tube wall.

2. The heating assembly as described in claim 1, characterized in that: The air inlet end of the inner tube of the heating element is connected to a second porous heat-insulating tube, and the tube wall of the second porous heat-insulating tube is provided with several air inlet holes.

3. The heating assembly as described in claim 2, characterized in that: The air inlet is a horn-shaped hole, and the diameter of the air inlet located on the outer side of the tube wall of the second porous heat-insulating tube is larger than the diameter of the air inlet located on the inner side of the tube wall of the second porous heat-insulating tube.

4. The heating assembly as described in claim 2, characterized in that: The air inlet is a cylindrical straight hole, and a miniature air inlet component is installed inside the air inlet. The miniature air inlet component has a one-way open cross-shaped hole, which opens during suction and closes when suction stops.

5. The heating assembly as described in claim 4, characterized in that: The miniature air intake component is made of silicone.

6. The heating assembly according to any one of claims 2-5, characterized in that: A spiral air passage component is installed inside the second porous heat-insulating tube.

7. The heating assembly according to any one of claims 2-5, characterized in that: The first porous heat-insulating tube is made of ceramic, sapphire, or glass; and / or, the second porous heat-insulating tube is made of ceramic, sapphire, or glass.

8. The heating assembly as described in claim 7, characterized in that: The first porous heat-resistant tube is connected to the inner tube of the heating element using an electrode ring or structural adhesive; and / or, the second porous heat-resistant tube is connected to the inner tube of the heating element using an electrode ring or structural adhesive.

9. A heated non-combustible smoking appliance, characterized in that: Includes the heating component as described in any one of claims 1-8.

10. The heated non-combustible smoke appliance as described in claim 9, characterized in that: The heated non-combustible smoke device includes at least two batteries connected in series.

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