Multi-adaptive heat flow heating smoking set
By using a tower-type electromagnetic coil and a vacuum-insulated heating module, the problems of low utilization rate and poor durability of the cigarette core are solved, achieving multi-adaptability and efficient heating, thereby improving the service life of the smoking device and the smoking experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO YUNNAN IND
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-01
AI Technical Summary
Existing heated smoking devices suffer from problems such as low utilization rate of the cigarette core, difficulty in cleaning, poor durability of the device, and poor compatibility of the cigarette. In particular, the airflow heating method results in a large temperature drop when the airflow passes through the cigarette core section, leading to low utilization rate of the cigarette core and easy corrosion of electronic components by the condensate.
Employing a tower-type electromagnetic coil assembly and a vacuum-insulated heating module, heating elements are arranged in arc-shaped and rectangular grooves on the inner wall of the cigarette cup. Combined with a conical curved surface design of the cigarette cup bottom plate, cold air enters from the side wall to heat the bottom of the cigarette. Vacuum insulation components are used to reduce temperature drop, and the heating efficiency is improved by utilizing the energy density difference of the tower-type electromagnetic coil at different heights.
It improves the utilization rate of the cigarette core, enhances the durability of the smoking device, is compatible with various types of cigarette cores, improves the smoking experience, and avoids condensate contact with the battery and circuitry, thus extending the lifespan of the smoking device.
Smart Images
Figure CN224179191U_ABST
Abstract
Description
A multi-adaptive heat flow heating smoke appliance Technical Field
[0001] This utility model belongs to the field of tobacco technology, specifically relating to a multi-adaptive heat flow heating tobacco device. Background Technology
[0002] With increasing consumer health awareness, the demand for alternatives to traditional cigarettes is growing, and heated cigarettes, as a relatively harm-reducing tobacco product, are experiencing continuous market expansion. Existing heated cigarette devices primarily utilize resistance and electromagnetic heating methods. Resistance heating is further divided into center heating and circumferential heating. Center heating devices have high energy utilization but are insufficiently heated, and also suffer from the drawback of tobacco residue remaining in the flue that is difficult to clean. Circumferential heating devices, due to heat radiating from the circumference to the center, have improved tobacco utilization, but experience higher heat loss and may produce a papery taste during heating, leading to a negative consumer experience. Existing electromagnetic heating methods are mainly divided into those with built-in and external sensors. Devices with built-in sensors eliminate the need for cleaning, but suffer from low sensor utilization, high manufacturing difficulty and cost due to the built-in heating element, and the risk of metal contamination. External sensors, in addition to low sensor utilization, also present cleaning challenges. For the reasons mentioned above, an airflow heating smoking device has emerged in the industry. It heats the airflow by installing a coil winding or honeycomb ceramic heating element at the bottom of the cigarette cup, thereby heating the cigarette. The airflow heating method has the advantages of high cigarette core utilization and no need to clean the smoking device.
[0003] The existing airflow-heated smoking devices work by heating cold air through a heating element at the bottom of the cigarette cup, then allowing it to enter the heated core section from the bottom of the cigarette and exit through the filter section. A drawback is the significant temperature drop that occurs when air flows through the core section, resulting in low core utilization. Therefore, bottom-airflow-heated smoking devices are only suitable for high-porosity cores like granular cigarettes, exhibiting poor compatibility. Furthermore, the condensate produced after heating the core section in bottom-airflow-heated devices can easily corrode electronic circuits and components, leading to poor device durability.
[0004] This utility model is proposed for this purpose. Summary of the Invention
[0005] This utility model discloses a multi-adaptive heat flow heating smoking device. The utilization rate of the smoking device's wick is increased; the condensate generated during use will not come into contact with batteries, circuits, and electronic components, thus extending the device's lifespan.
[0006] The technical solution of this utility model is as follows:
[0007] The first aspect of this utility model discloses a multi-adaptive heat flow heating smoke appliance, which includes: an electromagnetic coil assembly and a vacuum insulation heating module;
[0008] The electromagnetic coil assembly includes: a tower-type electromagnetic coil 7 with a radius that gradually increases from top to bottom, an upper coil mounting plate 3 at its upper part, and a lower coil mounting plate 4 at its lower part;
[0009] The vacuum insulation heating module includes: a smoke cup 10 and a heat insulation sleeve 8 surrounding it, with a vacuum space formed between the outer wall of the smoke cup 10 and the inner wall of the heat insulation sleeve 8; the inner wall of the smoke cup 10 has a plurality of arc-shaped grooves 1001 axially formed, and a rectangular groove 1002 is formed between two arc-shaped grooves 1001; a heating element 14 is arranged in each arc-shaped groove 1001; one side of the heating element 14 is an arc-shaped surface that fits against the inner surface of the arc-shaped groove 1001, and the opposite side of the arc-shaped surface of the heating element 14 is a plane that is lower than the groove plane of the arc-shaped groove 1001;
[0010] The electromagnetic coil assembly is sleeved around the vacuum insulation heating module.
[0011] Preferably, the bottom of the cigarette cup 10 is a cigarette cup bottom plate 12, the upper surface of the cigarette cup bottom plate 12 is a conical curved surface 1201, and an annular heating strip 1202 is arranged on the conical curved surface 1201.
[0012] Preferably, the bottom plate 12 of the cigarette cup is mounted on the threaded base 9, and the bottom plate 12 of the cigarette cup and the cigarette cup 10 are connected by a limiting ring 11.
[0013] Preferably, the heating element 14 and the annular heating strip 1202 are made of ferromagnetic material; the excitation frequency of the tower electromagnetic coil 7 is above 100 kHz. The heat insulation sleeve 8 is preferably made of a material to which the tower electromagnetic coil 7 has no effect.
[0014] Preferably, the smoking device further includes a smoking device housing assembly; the smoking device housing assembly includes: an upper housing 1 and a lower housing 2, which are connected by a snap-fit; the upper housing 1 is arranged around the electromagnetic coil assembly, and a cigarette insertion hole 101 is opened on its upper end wall, the cigarette insertion hole 101 being exactly the same size and shape as the mouth of the cigarette cup 10; a battery 5 is arranged inside the lower housing 2, and the battery 5 is mounted on the inner wall of the lower housing 2 through a battery mounting plate 6.
[0015] The second aspect of this utility model discloses the application of the multi-adaptive heat flow heating smoke device for heating non-combustible cigarettes.
[0016] Preferably, the method of using the multi-adaptive heat flow heating smoke appliance includes the following steps:
[0017] Set the heating temperature of the smoking device; insert the heated non-combustible cigarette into the cigarette cup 10 through the cigarette insertion hole 101. The cigarette is radially positioned by the non-arc groove 1001 and the rectangular groove 1002 of the cigarette cup 10, while the cigarette does not directly contact the heating element 14; the bottom of the cigarette is axially limited by the limiting ring 11, so that there is a distance of 1mm-5mm between the bottom of the cigarette cup 10 and the upper wall of the bottom plate 12 of the cigarette cup; the purpose is to leave sufficient space between the bottom of the cigarette and the bottom of the cigarette cup, so that the airflow can flow smoothly from the side of the cigarette cup. The wall enters the bottom of the cigarette stick; the starting battery 5 is powered on, and the tower electromagnetic coil 7 generates a high-frequency alternating magnetic field, which rapidly heats up the heating element 14 and the annular heating strip 1202, heating the air inside the cigarette cup 10 to preheat the cigarette stick; after preheating, the consumer inhales, and the cold air enters from the side wall of the cigarette stick, driving the hot air stored in the arc groove 1001 and rectangular groove 1002 on the side wall of the cigarette cup 10 to the bottom of the cigarette cup 10. At this time, the air temperature at the bottom of the cigarette cup 10 is the highest. The hot air then enters the core section of the cigarette stick through the bottom of the cigarette stick for heating, and the resulting smoke is inhaled by the consumer.
[0018] The beneficial effects of this utility model are:
[0019] This utility model relates to a multi-adaptive heat-heated smoking device. The heating principle involves cold air entering from the side wall of the cigarette holder, being heated by the heating elements 14 arranged on the side wall and the annular heating strip 1202 on the bottom plate of the holder, before entering from the bottom of the cigarette holder and exiting from the filter end. The cold air is heated step-by-step as it flows through the airflow channel. Combined with the annular heating strip 1202 on the bottom plate of the holder, the airflow is heated to its highest temperature at the bottom of the holder. Simultaneously, the hot airflow from the side wall conducts heat from circumference to the center of the cigarette holder. Combined with the vacuum insulation component, the cigarette holder is constantly preheated. This reduces the temperature drop of the hot airflow as it flows from the bottom of the cigarette holder to the filter section, allowing for full release of the aerosol in the entire cigarette core, thus greatly increasing the utilization rate of the cigarette core. The heat for heating the cigarette core comes from two parts: first, the hot air flowing directly through the cigarette core section heats the cigarette core; second, the hot airflow flowing through the side wall of the holder conducts heat from circumference to the center of the cigarette core. This heating method increases the utilization rate of the cigarette core and improves the consumer's smoking experience. This airflow heating method is compatible with various types of cigarette cores, including granular, sheet, and non-tobacco matrix types. During use, the condensate produced by the cigarette does not come into contact with batteries, circuits, or electronic components, extending the lifespan of the device. The opposite surface of the arc-shaped heating element 14 is a flat surface, lower than the groove plane of the arc-shaped groove 1001. The cigarette does not directly contact the heating element 14, preventing excessive circumferential temperature and affecting the smoking experience. A certain distance, such as 1mm-5mm, is maintained between the limiting ring 11 and the upper wall of the cup bottom plate 12. This provides sufficient space between the bottom of the cigarette and the bottom of the cup, allowing airflow to smoothly enter the bottom of the cigarette from the side wall of the cup. The upper surface of the cup bottom plate 12 is designed as a conical curved surface 1201. This design ensures that the apex of the conical curved surface is closest to the bottom of the cigarette core, resulting in the highest temperature at the center of the cigarette core.
[0020] This utility model's multi-adaptive heat flow heating tobacco device uses a tower-type electromagnetic coil. The energy density of the tower-type electromagnetic coil varies at different heights, which can improve the utilization rate of the tobacco wick according to actual conditions. Taking thin-sheet tobacco wick material as an example, because thin-sheet tobacco wicks are relatively dense, the temperature drop is large when the heated heat flow enters from the bottom of the wick, resulting in insufficient heating at the top. The tower-type electromagnetic coil can be configured so that the coil radius increases from top to bottom, and the number of coil turns decreases from top to bottom. This results in a higher energy density at the top of the tower-type electromagnetic coil after energization, leading to a higher temperature at the top of the heating element. When the device heats the tobacco, the heat generated at the top of the heating element has a stronger heat conduction effect on the tobacco wick section, thus enhancing the utilization rate of the tobacco wick. Attached Figure Description
[0021] Figure 1 shows the appearance of the multi-adaptive heat flow heating smoke appliance of this utility model.
[0022] Figure 2 shows the internal structure of the multi-adaptive heat flow heating smoke appliance of this utility model.
[0023] Figure 3 shows the electromagnetic coil assembly of this utility model.
[0024] Figure 4 shows the vacuum insulation heating module of this utility model.
[0025] Figure 5 is a structural diagram of the vacuum insulation heating module of this utility model.
[0026] Figure 6 is a structural diagram of the heating component of this utility model.
[0027] Figure 7 is a structural diagram of the tobacco cup of this utility model.
[0028] Figure 8 is a structural diagram of the heating element of this utility model.
[0029] Figure 9 is a perspective view of the bottom plate of the cigarette cup of this utility model.
[0030] Figure 10 is a schematic diagram of the inner wall structure of the bottom plate of the cigarette cup of this utility model.
[0031] The attached figures are labeled as follows: 1. Upper shell of the smoking device; 1001. Arc-shaped groove; 1002. Rectangular groove; 101. Hole; 2. Lower shell of the smoking device; 1201. Conical curved surface; 1202. Annular heating strip; 3. Upper mounting plate of the coil; 4. Lower mounting plate of the coil; 5. Battery; 6. Battery mounting plate; 7. Tower-type electromagnetic coil; 8. Heat insulation sleeve; 80. Internal thread; 801. Arc-shaped opening; 802. Rectangular opening; 9. Threaded base; 90. External thread; 10. Smoking cup; 11. Limiting ring; 12. Smoking cup bottom plate; 13. Screw; 14. Heating element. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0033] As shown in Figures 1-10, this utility model discloses a multi-adaptive heat flow heating smoking device, comprising: an electromagnetic coil assembly and a vacuum insulation heating module; the electromagnetic coil assembly includes: a tower-shaped electromagnetic coil 7 that gradually thickens from top to bottom, an upper coil mounting plate 3, and a lower coil mounting plate 4; the vacuum insulation heating module includes: a smoking cup 10 and an outer heat insulation sleeve 8, forming a vacuum space between the outer wall of the smoking cup 10 and the inner wall of the heat insulation sleeve 8; the smoking cup 10 and the heat insulation sleeve 8 can be bonded together with sealant or combined in other ways to form the vacuum space; the smoking cup 10 contains several heating elements 14; and several heating elements are axially formed on the inner wall of the smoking cup 10. An arc-shaped groove 1001 is provided, and a rectangular groove 1002 is formed between two arc-shaped grooves 1001. A heating element 14 is arranged in each arc-shaped groove 1001. One side of the heating element 14 is arc-shaped and fits against the inner surface of the arc-shaped groove 1001. The opposite side of the arc-shaped surface of the heating element 14 is flat and lower than the groove plane of the arc-shaped groove 1001, so that the heating element 14 does not come into contact with the cigarette. The thickness of the heating element 14 is adjusted according to the heating temperature. An arc-shaped opening 801 and a rectangular opening 802 are formed at the upper end of the heat insulation sleeve 8, which correspond one-to-one with the arc-shaped groove 1001 and the rectangular groove 1002 of the cigarette cup 10. The electromagnetic coil assembly is sleeved around the vacuum heat insulation heating module.
[0034] As shown in Figure 3, the lower end face of the upper mounting plate 3 of the coil has a circular groove that fits with the upper end face of the tower electromagnetic coil 7 with a clearance fit, and threaded holes at both ends are threaded to connect with the upper shell 1 of the smoking device; the upper end face of the lower mounting plate 4 of the coil has a circular groove that fits with the lower end face of the electromagnetic coil 7 with a clearance fit, and threaded holes at both ends are threaded to connect with the upper shell 1 of the smoking device; the coil wire diameter, number of turns, and diameter of the tower electromagnetic coil 7 are set according to the heating temperature range, and different parameters are set to control different heating temperatures on the heating element 14; the energy density of the tower electromagnetic coil is different at different heights, which can be set according to the actual situation to improve the utilization rate of the cigarette core.
[0035] As shown in Figures 9 and 10, the bottom of the cigarette cup 10 is a cigarette cup base plate 12, and the upper surface of the cigarette cup base plate 12 is a conical curved surface 1201. Annular heating strips 1202 are arranged on the conical curved surface 1201. There can be multiple annular heating strips 1202, which can be printed or directly arranged, as shown in Figure 10.
[0036] As shown in Figures 4-5, the bottom plate 12 of the cigarette cup is installed on the threaded base 9. There is a limiting ring 11 between the bottom plate 12 of the cigarette cup and the threaded base 9. The limiting ring 11 makes a distance of 1mm-5mm between the bottom of the cigarette cup 10 and the upper wall of the bottom plate 12 of the cigarette cup. The heat insulation sleeve 8, the threaded base 9, the cigarette cup 10, the limiting ring 11, and the bottom plate 12 of the cigarette cup are fixedly connected together by the threads of the long screw 13. The inner wall of the bottom of the heat insulation sleeve 8 has an internal thread 80 (not shown in the figure), and the outer wall of the bottom of the threaded base 9 has an external thread 90. The internal thread 80 and the external thread 90 are compatible.
[0037] As shown in Figures 1 and 2, the smoking device also includes a smoking device outer shell assembly; the smoking device outer shell assembly includes: an upper shell 1 and a lower shell 2, which are connected by snap-fit or other means; the upper shell 1 is arranged around the electromagnetic coil assembly, and a cigarette insertion hole 101 is opened on its upper wall, the cigarette insertion hole 101 being exactly the same size and shape as the mouth of the cigarette cup 10; a battery 5 is arranged inside the lower shell 2, and the battery 5 is installed on the inner wall of the lower shell 2 by screws through a battery mounting plate 6.
[0038] This utility model is a multi-adaptable heat flow heating device for heating non-combustible cigarettes. It is compatible with various types of cigarette cores, such as granular, tobacco sheet, and non-tobacco matrix heated non-combustible cigarettes.
[0039] The usage method of multi-adapter type heat flow heating smoke appliance includes the following steps:
[0040] Set the heating temperature of the smoking device; insert the heated non-combustible cigarette into the cigarette cup 10 through the cigarette insertion hole 101. The cigarette is radially positioned by the non-arc groove 1001 and the rectangular groove 1002 of the cigarette cup 10, while the cigarette does not directly contact the heating element 14; the bottom of the cigarette is axially limited by the limiting ring 11, which makes a distance of 1mm-5mm between the bottom of the cigarette cup 10 and the upper wall of the bottom plate 12 of the cigarette cup. The purpose is to leave sufficient space between the bottom of the cigarette and the bottom of the cigarette cup, so that the airflow can smoothly enter the bottom of the cigarette from the side wall of the cigarette cup. The battery 5 is powered on, and the tower electromagnetic coil 7 generates a high-frequency alternating magnetic field. The heating element 14 and the annular heating strip 1202 heat up rapidly, heating the air inside the cigarette cup 10 to preheat the cigarette. After preheating, the consumer inhales, and cold air enters from the side wall of the cigarette, driving the hot air stored in the arc groove 1001 and rectangular groove 1002 on the side wall of the cigarette cup 10 towards the bottom of the cigarette cup 10. At this time, the air temperature at the bottom of the cigarette cup 10 is the highest. The hot air then enters the core section of the cigarette through the bottom of the cigarette for heating, and the resulting smoke is inhaled by the consumer.
[0041] The above description is only used to detail the specific embodiments of this utility model, but the technical solution proposed by this utility model is not limited to the above methods. All equivalent modifications and variations made by those skilled in the art to the technology proposed by this utility model without departing from the basic principles of this technology should be covered within the scope of the claims of this utility model.
Claims
1. A multi-adaptive heat flow heating smoke appliance, characterized in that, It includes: Electromagnetic coil assembly and vacuum insulation heating module; The electromagnetic coil assembly includes: a tower-type electromagnetic coil (7) with a radius gradually increasing from top to bottom, an upper coil mounting plate (3) and a lower coil mounting plate (4); the vacuum insulation heating module includes: a cigarette cup (10) and a heat insulation sleeve (8) around it, and a vacuum space is formed between the outer wall of the cigarette cup (10) and the inner wall of the heat insulation sleeve (8); the inner wall of the cigarette cup (10) has several arc-shaped grooves (1001) axially opened, and a rectangular groove (1002) is opened between two arc-shaped grooves (1001); a heating element (14) is arranged in each arc-shaped groove (1001); one side of the heating element (14) is an arc-shaped surface that fits against the inner surface of the arc-shaped groove (1001), and the opposite side of the arc-shaped surface of the heating element (14) is a plane, which is lower than the groove plane of the arc-shaped groove (1001); the electromagnetic coil assembly is sleeved around the vacuum insulation heating module.
2. The multi-adaptive heat flow heating smoke appliance according to claim 1, characterized in that, The bottom of the cigarette cup (10) is a cigarette cup bottom plate (12), the upper surface of the cigarette cup bottom plate (12) is a conical curved surface (1201), and an annular heating strip (1202) is arranged on the conical curved surface (1201).
3. The multi-adaptive heat flow heating smoke appliance according to claim 2, characterized in that, The bottom plate (12) of the cigarette cup is mounted on the threaded base (9), and there is a limit ring (11) between the bottom plate (12) of the cigarette cup and the cigarette cup (10).