Circumferential auxiliary heating air heating smoking set
By using circumferential auxiliary heating air heating, and utilizing tower-type electromagnetic coils and vacuum insulation modules, the problems of low utilization rate and poor durability of existing heated smoking devices' wicks are solved, achieving higher wick utilization rate and longer smoking device lifespan, and is suitable for various wick types.
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, corrosion of the heating element by condensate, poor durability of the device, and difficulty in cleaning. They are particularly suitable for granular cigarettes and have poor compatibility.
The cigarette uses a circumferential auxiliary heating air heating method, which utilizes a tower-type electromagnetic coil and a vacuum insulation heating module. Cold air enters from the side wall of the cigarette and is heated by the outer heating element and the ring heating strip. Combined with the inner heating element, heat is conducted from the circumference to the center, keeping the cigarette in a preheated state and increasing the utilization rate of the cigarette core.
It improves the utilization rate of the cigarette core, reduces the contact between condensate and the battery and circuit, extends the service life of the smoking device, is compatible with various types of cigarette cores, and enhances the consumer's smoking experience.
Smart Images
Figure CN224179192U_ABST
Abstract
Description
A circumferential auxiliary heating air heating smoke appliance Technical Field
[0001] This utility model belongs to the field of tobacco technology, specifically relating to a circumferentially heated smoking device with auxiliary heating air. 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-heated 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. Airflow-heated smoking devices have the advantages of high wick utilization for particulate cigarettes and no need for cleaning.
[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, such as granular cigarettes, exhibiting poor compatibility. Furthermore, the condensate produced after heating the core section in bottom-airflow-heated devices easily corrodes the heating element, leading to poor device durability.
[0004] This utility model is proposed for this purpose. Summary of the Invention
[0005] This utility model discloses a circumferentially heated smoking device with auxiliary heating air. The utilization rate of the smoking device's wick is increased; the condensate produced 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 circumferential auxiliary heating air heating smoke device, which includes: an electromagnetic coil assembly and a vacuum insulation heating module;
[0008] The electromagnetic coil assembly includes: a tower-shaped electromagnetic coil 7 that gradually thickens 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 an 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 insulation sleeve 8; a plurality of heating elements 14 are located inside the smoke cup 10; a plurality of arc-shaped grooves 1001 are formed on the inner wall of the smoke cup 10, and a rectangular groove 1002 is formed between two arc-shaped grooves 1001; an outer heating element 1401 is arranged in each arc-shaped groove 1001, one side of the outer heating element 1401 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 outer heating element 1401 is a plane, which is lower than the groove plane of the arc-shaped groove 1001; an inner heating element 1402 is arranged in each rectangular groove 1002, the inner heating element 1402 is interference-fitted with the rectangular groove 1002, and the inner wall surface of the inner heating element 1402 is slightly higher than the groove plane of the rectangular groove 1002;
[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 shell assembly; the smoking device shell assembly includes: an upper shell 1 and a lower shell 2, which are connected by a snap fastener; the upper shell 1 is arranged around the electromagnetic coil assembly, and a cigarette insertion hole 101 is opened on its upper end wall; 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 through a battery mounting plate 6.
[0015] The second aspect of this utility model discloses the application of the circumferential auxiliary heating air heating device for heating non-combustible cigarettes.
[0016] Preferably, the method of using the circumferential auxiliary heating air smoke appliance includes the following steps:
[0017] Set the heating temperature; insert the heated non-combustible cigarette into the cigarette cup 10 through the cigarette insertion hole 101. The inner heating element 1402 in the rectangular groove 1002 of the cigarette cup 10 radially positions the cigarette. At the same time, the outer circumference of the cigarette does not directly contact the outer heating element 1401, but directly contacts the inner heating element 1402. 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 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, and the inner heating element 1402 preheats the circumference of the cigarette. After preheating, the consumer inhales. Cold air enters from the side wall of the cigarette, driving the hot air stored in the arc groove 1001 to the bottom of the cigarette cup 10. The hot air then enters the core section of the cigarette through the bottom of the cigarette for heating, and the generated smoke is inhaled by the consumer.
[0018] The beneficial effects of this utility model are:
[0019] This utility model discloses a circumferentially heated smoking device with auxiliary heating air. Each arc-shaped groove 1001 contains an external heating element 1401, the plane of which is lower than the groove plane of the arc-shaped groove 1001 and does not contact the cigarette. Each rectangular groove 1002 contains an internal heating element 1402, the inner wall of which is slightly higher than the groove plane of the rectangular groove 1002 and directly contacts the outer periphery of the cigarette. The heating principle of this utility model is that cold air enters from the side wall of the cigarette, passes through the external heating element 1401 arranged on the side wall of the cigarette cup, and interacts with the annular heating strip 1202 on the bottom plate of the cigarette cup.
[0020] This design ensures the airflow is heated to its highest temperature at the bottom of the cigarette cup. Simultaneously, the hot airflow on the sidewalls and the inner heating element 1402 conduct heat from the circumference to the center of the cigarette. Combined with the vacuum insulation component, this keeps the cigarette constantly preheated. This reduces the temperature drop of the hot airflow as it flows from the bottom of the cigarette to the filter section, allowing for the full release of aerosol from the entire cigarette core. The heated aerosol enters from the bottom of the cigarette and exits from the filter, significantly increasing the utilization rate of the cigarette core. The condensate produced during use does not come into contact with the battery, circuitry, or electronic components, extending the lifespan of the device. The heat for heating the cigarette core comes from two sources: first, the hot air flowing directly through the core section heats the core; second, the inner heating element 1402, which is in direct contact with the outer circumference of the cigarette, and the hot airflow flowing through the sidewalls of the cigarette cup and heated by the outer heating element 1401, conduct heat from the circumference to the center of the core. This heating method increases the utilization rate of the cigarette core and enhances the smoking experience. This multi-dimensional heating method allows the smoking device to better adapt to different types of cigarette fillers, such as sheet-type, granular, and non-tobacco matrix fillers. To better adapt to different filler materials, the inner heating element 1402, outer heating element 1401, and annular heating strip 1202 can be independently controlled. When adapting to filler materials with high porosity, such as granular fillers, the heating temperature of the annular heating strip 1202 can be increased, while the heating temperatures of the inner heating element 1402 and outer heating element 1401 can be appropriately decreased, enhancing the airflow temperature entering the bottom of the filler and thus improving filler utilization. When adapting to filler materials with low porosity and thin cigarette paper walls, such as sheet-type fillers, the heating temperature of the annular heating strip 1202 can be appropriately decreased, while the heating temperatures of the inner heating element 1402 and outer heating element 1401 can be increased, enhancing heat conduction from the circumference to the center of the filler and thus improving filler utilization.
[0021] This utility model discloses a circumferentially auxiliary heated air-heated smoking device. Cold air enters from the side wall of the cigarette, is heated by the outer heating element 1401 arranged on the side wall and the annular heating strip 1202 on the bottom plate of the cigarette cup, and then enters from the bottom of the cigarette and is drawn out from the filter end. As the cold air flows through the airflow channel, it is heated step by step. With the help of the annular heating strip 1202 on the bottom plate of the cigarette cup, the airflow is heated to the highest temperature at the bottom of the cigarette cup. At the same time, the inner heating element 1402 arranged on the side wall is in direct contact with the cigarette to conduct heat from the circumference to the center for auxiliary heating. The hot airflow generated by the outer heating element 1401, together with the vacuum insulation component, keeps the cigarette in a preheated state. In this way, the temperature drop of the hot airflow is reduced as it flows from the bottom of the cigarette to the filter section, which allows the aerosol of the entire cigarette core to be fully released, thereby greatly increasing the utilization rate of the cigarette core.
[0022] This utility model utilizes a tower-type electromagnetic coil in its circumferentially heated air-heated smoking device. The energy density of the tower-type electromagnetic coil varies at different heights, allowing for improved utilization of the cigarette wick based on specific conditions. Taking thin-film cigarette wicks as an example, due to their denser texture, the temperature drop is significant when the heated heat enters from the bottom of the wick, resulting in insufficient heating at the top. The tower-type electromagnetic coil can be configured with a coil radius increasing from top to bottom and a coil turn count decreasing from dense to sparse. This results in 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 cigarette, the heat generated at the top of the heating element has a stronger heat conduction effect on the cigarette wick, thus enhancing the utilization of the cigarette wick. Attached Figure Description
[0023] Figure 1 shows the appearance of the circumferential auxiliary heating air smoke generator of this utility model.
[0024] Figure 2 shows the internal structure of the circumferential auxiliary heating air smoke generator of this utility model.
[0025] Figure 3 shows the electromagnetic coil assembly of the circumferential auxiliary heating air smoke generator of this utility model.
[0026] Figure 4 shows the vacuum insulation heating module of the circumferential auxiliary heating air heating smoke device of this utility model.
[0027] Figure 5 is a structural diagram of the vacuum insulation heating module of the circumferential auxiliary heating air heating smoke device of this utility model.
[0028] Figure 6 is a structural diagram of the heating component of the circumferential auxiliary heating air smoke generator of this utility model.
[0029] Figure 7 is a structural diagram of the smoke cup of the circumferential auxiliary heating air smoke device of this utility model.
[0030] Figure 8 is a structural diagram of the heating element of the circumferential auxiliary heating air smoke generator of this utility model.
[0031] Figure 9 shows the bottom plate of the smoke cup of the circumferential auxiliary heating air smoke device of this utility model.
[0032] Figure 10 shows the bottom surface structure of the bottom plate of the smoke cup of the circumferential auxiliary heating air smoke device of this utility model.
[0033] 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; 1401. External heating element; 1402. Internal heating element. Detailed Implementation
[0034] 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.
[0035] As shown in Figures 1-10, this utility model discloses a circumferentially heated air-heated smoking device, comprising: an electromagnetic coil assembly and a vacuum-insulated 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-insulated heating module includes: a smoking cup 10 and an outer heat-insulating sleeve 8, forming a vacuum space between the outer wall of the smoking cup 10 and the inner wall of the heat-insulating sleeve 8; the smoking cup 10 and the heat-insulating 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; several arc-shaped grooves 1001 are formed on the inner wall of the smoking cup 10, and a rectangular groove 100 is formed between two arc-shaped grooves 1001. 2; Each arc-shaped groove 1001 contains an external heating element 1401, one side of which 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 external heating element 1401 is a plane that is lower than the groove plane of the arc-shaped groove 1001; Each rectangular groove 1002 contains an internal heating element 1402, which is interference-fitted with the rectangular groove 1002, and the inner wall of the internal heating element 1402 is slightly higher than the groove plane of the rectangular groove 1002; The upper end of the heat insulation sleeve 8 has an arc-shaped opening 801 and a rectangular opening 802, 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.
[0036] 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, and can be set according to actual conditions to improve the utilization rate of the cigarette core.
[0037] 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.
[0038] As shown in Figure 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, as shown in Figure 4.
[0039] As shown in Figures 1-2, 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.
[0040] This utility model relates to a circumferential auxiliary heating air heating device for heating non-combustible cigarettes. It is suitable for various types of heated non-combustible cigarettes, including granular, tobacco sheet, and non-tobacco matrix types.
[0041] The method of using the circumferential auxiliary heating air heating device of this utility model to heat non-combustible cigarettes includes the following steps:
[0042] Set the heating temperature; insert the heated non-combustible cigarette into the cigarette cup 10 through the cigarette insertion hole 101. The inner heating element 1402 in the rectangular groove 1002 of the cigarette cup 10 radially positions the cigarette. The outer circumference of the cigarette does not directly contact the outer heating element 1401, but directly contacts the inner heating element 1402. The bottom of the cigarette is axially limited by the limiting ring 11. 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. Power on the start battery 5. 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. The inner heating element 1402 preheats the circumference of the cigarette. After preheating, the consumer inhales. Cold air enters from the side wall of the cigarette, driving the hot air stored in the arc groove 1001 to the bottom of the cigarette cup 10. The hot air then enters the core section of the cigarette through the bottom of the cigarette for heating. The generated smoke is inhaled by the consumer.
[0043] This utility model discloses a circumferentially heated smoking device with auxiliary heating air. Each arc-shaped groove 1001 contains an external heating element 1401, the plane of which is lower than the groove plane of the arc-shaped groove 1001 and does not contact the cigarette. Each rectangular groove 1002 contains an internal heating element 1402, the inner wall of which is slightly higher than the groove plane of the rectangular groove 1002 and directly contacts the outer periphery of the cigarette. The heating principle of this utility model is that cold air enters from the side wall of the cigarette, is heated by the external heating element 1401 arranged on the side wall of the cigarette cup and the annular heating strip 1202 on the bottom plate of the cigarette cup, and then enters from the bottom of the cigarette and is drawn out from the filter end. Simultaneously, the internal heating element 1402 preheats the cigarette circumferentially to the center through heat conduction. The hot airflow generated by the external heating element 1401, combined with the vacuum insulation component, keeps the cigarette in a preheated state. This reduces the temperature drop of the hot airflow as it flows from the bottom of the cigarette to the filter section, allowing for full release of aerosol from the entire cigarette core and significantly increasing the utilization rate of the core. The condensate produced during use does not come into contact with the battery, circuitry, or electronic components, extending the lifespan of the device. The heat for heating the core comes from two sources: firstly, the hot air flowing directly through the core section heats the core; secondly, the internal heating element 1402, which is in direct contact with the outer circumference of the cigarette, and the hot airflow flowing through the side wall of the cigarette cup and heated by the external heating element 1401, conduct heat circumferentially to the core. This heating method increases the utilization rate of the core and enhances the smoking experience. This multi-dimensional heating method allows the device to better accommodate different types of cores, such as sheet, pellet, and non-tobacco matrix cores. To better adapt to different types of cigarette core materials, the inner heating element 1402, outer heating element 1401, and annular heating strip 1202 can be independently controlled. When adapting to granular cigarette core materials with high porosity, the heating temperature of the annular heating strip 1202 can be increased, while the heating temperatures of the inner heating element 1402 and outer heating element 1401 can be appropriately decreased to enhance the airflow temperature entering the bottom of the cigarette core, thereby improving the utilization rate of the cigarette core. When adapting to thin-sheet cigarette core materials with low porosity and thin cigarette paper walls, the heating temperature of the annular heating strip 1202 can be appropriately decreased, while the heating temperatures of the inner heating element 1402 and outer heating element 1401 can be increased to enhance the heat conduction from the circumference to the center of the cigarette core, thereby improving the utilization rate of the cigarette core.
[0044] This utility model discloses a circumferentially auxiliary heated air-heated smoking device. Cold air enters from the side wall of the cigarette, is heated by the outer heating element 1401 arranged on the side wall and the annular heating strip 1202 on the bottom plate of the cigarette cup, and then enters from the bottom of the cigarette and is drawn out from the filter end. As the cold air flows through the airflow channel, it is heated step by step. With the help of the annular heating strip 1202 on the bottom plate of the cigarette cup, the airflow is heated to the highest temperature at the bottom of the cigarette cup. At the same time, the inner heating element 1402 arranged on the side wall is in direct contact with the cigarette to conduct heat from the circumference to the center for auxiliary heating. The hot airflow generated by the outer heating element 1401, together with the vacuum insulation component, keeps the cigarette in a preheated state. In this way, the temperature drop of the hot airflow is reduced as it flows from the bottom of the cigarette to the filter section, which allows the aerosol of the entire cigarette core to be fully released, thereby greatly increasing the utilization rate of the cigarette core.
[0045] The circumferential auxiliary heating air-heating smoke appliance of this utility model uses a tower-type electromagnetic coil; the energy density of the tower-type electromagnetic coil varies at different heights, and can be set according to actual conditions to improve the utilization rate of the smoke core.
[0046] 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 circumferentially auxiliary heated air 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) 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 tobacco cup (10) and a heat insulation sleeve (8) around it, a vacuum space is formed between the outer wall of the tobacco cup (10) and the inner wall of the heat insulation sleeve (8); the tobacco cup (10) contains several heating elements (14); the inner wall of the tobacco cup (10) has several arc-shaped grooves (1001), and a rectangular groove (1002) is formed between two arc-shaped grooves (1001); each arc-shaped groove ( An external heating element (1401) is arranged inside the 1001. One side of the external heating element (1401) is an arc-shaped surface that fits against the inner surface of the arc-shaped groove (1001). The opposite side of the arc-shaped surface of the external heating element (1401) is a plane that is lower than the groove plane of the arc-shaped groove (1001). An internal heating element (1402) is arranged inside each rectangular groove (1002). The internal heating element (1402) is interference-fitted with the rectangular groove (1002), and the inner wall of the internal heating element (1402) is slightly higher than the groove plane of the rectangular groove (1002). The electromagnetic coil assembly is sleeved around the vacuum insulation heating module.
2. The circumferential auxiliary heating air heating 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 circumferential auxiliary heating air heating 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).