Vacuum thermal insulation hot air heating smoking set

Abstract

The invention discloses a vacuum thermal insulation hot air heating smoking set which comprises an electromagnetic coil assembly and a vacuum thermal insulation heating module. The electromagnetic coil assembly comprises a tower type electromagnetic coil with the radius gradually increasing from top to bottom. The vacuum thermal insulation heating module comprises a smoke cup and a thermal insulation sleeve, and a vacuum space is formed between the outer wall of the smoke cup and the inner wall of the thermal insulation sleeve; the electromagnetic coil assembly is arranged on the periphery of the vacuum thermal insulation heating module in a sleeving mode. According to the vacuum thermal insulation hot air heating smoking set, the utilization rate of the cigarette core is increased; the service life of the smoking set is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco, and particularly relates to a hot air heating smoking device with vacuum heat insulation. Background Art

[0002] With the improvement of consumers' health awareness, the demand for traditional cigarette substitutes has increased. As a relatively less harmful tobacco product, the market scale of heated cigarettes has been continuously expanding. The existing heating methods of heating smoking devices mainly include resistive heating and electromagnetic heating. The resistive heating method is further divided into central heating and circumferential heating. Among them, the central heating type smoking device has high energy utilization rate, but the heating of the cigarette stick is not sufficient, and there is also the disadvantage that it is difficult to clean the tobacco residue in the flue. In the circumferential heating type smoking device, due to the heat radiating from the circumference to the center, the utilization rate of the cigarette stick is improved, but the heat loss is relatively high, and paper smell may be generated during the heating process, resulting in a poor experience for consumers. The existing electromagnetic heating methods are mainly divided into an internal sensor cigarette core type and an external sensor type. The internal sensor cigarette core type heating smoking device does not require cleaning of the smoking device, but has the disadvantages of low cigarette core utilization rate, high processing difficulty of the cigarette stick with the heating element built-in, high processing cost, and metal pollution. In addition to the problem of low cigarette core utilization rate, the external sensor type heating smoking device also has the problem of cleaning the smoking device. For the above reasons, an air flow heating smoking device has emerged in the industry, which heats the flowing air by installing a coil winding or a honeycomb ceramic heating element at the bottom of the cigarette cup, and then heats the cigarette stick. The air flow heating method has the advantages of high cigarette core utilization rate and no need to clean the smoking device.

[0003] Since the heating principle of the existing air flow heating smoking device is that cold air flows through the heating component at the bottom of the cigarette cup, is heated, and then enters the heating cigarette core section from the bottom of the cigarette stick and flows out from the filter rod section. The disadvantage is that a large temperature drop will occur when flowing through the cigarette core section, resulting in a problem of low cigarette core utilization rate; the bottom air flow heating smoking device is only suitable for cigarette sticks with high porosity such as granular cigarette sticks, and the adaptability of the cigarette stick is poor; at the same time, the condensate generated after heating the cigarette core section of the bottom air flow heating smoking device is easy to corrode the battery, circuit, and electronic components, etc., resulting in a problem of poor durability of the smoking device.

[0004] Therefore, the present invention is proposed. Summary of the Invention

[0005] The present invention discloses a hot air heating smoking device with vacuum heat insulation. When using the smoking device of the present invention, the utilization rate of the cigarette core is increased; the condensate generated during the use of the smoking device will not come into contact with the battery, circuit, and electronic components, etc., improving the service life of the smoking device.

[0006] The technical solution of the present invention is as follows:

[0007] The present invention discloses a hot air heating smoking device with vacuum heat insulation, which includes: an electromagnetic coil assembly and a vacuum heat insulation heating module;

[0008] The electromagnetic coil assembly includes: a tower-shaped electromagnetic coil with a gradually increasing radius from top to bottom, a coil upper mounting plate 3 on its upper part, and a coil lower mounting plate 4 on its lower part;

[0009] The vacuum-insulated heating module includes: a first smoke cup 15 and a first heat insulation sleeve 12 around it. A vacuum space is formed between the outer wall of the first smoke cup 15 and the inner wall of the first heat insulation sleeve 12. The first smoke cup 15 and its first heat insulation sleeve 12 can be formed into a vacuum space by means of threads, sealant bonding, etc., or in other ways; A number of trapezoidal grooves 1501 are evenly axially opened on the inner wall of the first smoke cup 15; The bottom of the first smoke cup 15 is a first smoke cup bottom plate 17, and the upper surface of the first smoke cup bottom plate 17 is a first conical surface 1701; The first smoke cup bottom plate 17 is installed on a threaded base 13, and there is a limiting ring 16 between the first smoke cup bottom plate 17 and the first smoke cup 15; The upper part of the threaded base 13 has an external thread 130; The bottom of the inner wall of the first heat insulation sleeve 12 is provided with a first internal thread 120, and the first internal thread 120 is adapted to the external thread 130; A number of trapezoidal openings 1201 are opened on the side wall of the upper end of the first heat insulation sleeve 12; The trapezoidal opening 1201 is adapted to the trapezoidal groove 1501; The materials of the first smoke cup 15 and the first smoke cup bottom plate 17 are ferromagnetic materials; The excitation frequency of the tower-shaped electromagnetic coil is above 100 kHz; Among them, the material of the heat insulation sleeve 8 is preferably not affected by the tower-shaped electromagnetic coil; That is, the tower-shaped electromagnetic coil generates an alternating magnetic field, and only the materials of the first smoke cup 15 and the first smoke cup bottom plate 17 are heated up.

[0010] The first heat insulation sleeve 12, the threaded base 13, the first smoke cup 15, the limiting ring 16, and the first smoke cup bottom plate 17 are preferably fixedly connected together by the threads of long screws 14 (not marked in the figure).

[0011] The electromagnetic coil assembly is sleeved around the vacuum-insulated heating module.

[0012] Or,

[0013] A vacuum-insulated hot air heating smoking device includes: an electromagnetic coil assembly and a vacuum-insulated heating module;

[0014] The electromagnetic coil assembly includes: a tower-shaped electromagnetic coil with a gradually increasing radius from top to bottom, a coil upper mounting plate 3 on its upper part, and a coil lower mounting plate 4 on its lower part;

[0015] The vacuum insulation heating module includes: a second cigarette cup 20 and a second heat insulation sleeve 19 surrounding it. A vacuum space is formed between the outer wall of the second cigarette cup 20 and the inner wall of the second heat insulation sleeve 19. A number of arc-shaped grooves 2001 are formed on the inner wall of the second cigarette cup 20, and a rectangular groove 2002 is formed between two arc-shaped grooves 2001. One inner heating sheet 18 is arranged in each arc-shaped groove 2001. One side of the inner heating sheet 18 is an arc-shaped surface that fits the inner surface of the arc-shaped groove 2001. The opposite side of the arc-shaped surface of the inner heating sheet 18 is a flat surface, and this flat surface is lower than the groove plane of the arc-shaped groove 2001. The bottom of the second cigarette cup 20 is a second cigarette cup bottom plate 21, and the upper surface of the second cigarette cup bottom plate 21 is a second conical curved surface 2101. The second cigarette cup bottom plate 21 is installed on a threaded base 13, and there is a limiting ring 16 between the second cigarette cup bottom plate 21 and the second cigarette cup 20. A ring-shaped heating strip 2102 is arranged on the second conical curved surface 2101. The upper part of the threaded base 13 has an external thread 130. The bottom of the inner wall of the second heat insulation sleeve 19 has a second internal thread 190 (not marked in the figure), and the second internal thread 190 is adapted to the external thread 130. A number of arc-shaped openings 1901 and rectangular openings 1902 are formed on the side wall of the upper end of the second heat insulation sleeve 19. The arc-shaped opening 1901 is adapted to the arc-shaped groove 2001, and the rectangular opening 1902 is adapted to the rectangular groove 2002.

[0016] The materials of the inner heating sheet 18 and the ring-shaped heating strip 2102 are ferromagnetic materials. The excitation frequency of the tower-shaped electromagnetic coil 7 is above 100 kHz. Among them, the materials of the second cigarette cup 20, the second cigarette cup bottom plate 21 and the second heat insulation sleeve 19 are preferably materials that are not affected by the tower-shaped electromagnetic coil. At this time, the inner heating sheet 18 and the ring-shaped heating strip 2102 play a heating role. That is, the tower-shaped electromagnetic coil generates an alternating magnetic field, the material of the inner heating sheet 18 heats up, while the second cigarette cup, the second cigarette cup bottom plate 21 and the second heat insulation sleeve 19 do not heat up.

[0017] The second heat insulation sleeve 19, the threaded base 13, the second cigarette cup 20, the limiting ring 16, and the second cigarette cup bottom plate 21 are fixedly connected together by the threads of long screws 14, as Figure 7 shown;

[0018] The electromagnetic coil assembly is sleeved on the periphery of the vacuum insulation heating module.

[0019] Preferably, the tower-shaped electromagnetic coil is integrally divided into three parts by a first partition plate 7 and a second partition plate 8: an upper tower-shaped electromagnetic coil 9, a middle tower-shaped electromagnetic coil 10, and a lower tower-shaped electromagnetic coil 11; each internal heating sheet 18 is divided into three segments: an upper segment heating sheet 1801, a middle segment heating sheet 1802, and a lower segment heating sheet 1803; the upper segment heating sheet 1801, the middle segment heating sheet 1802, and the lower segment heating sheet 1803 are respectively separated by a first heat insulation sheet 1804 and a second heat insulation sheet 1805; the lengths of the upper segment heating sheet 1801, the middle segment heating sheet 1802, and the lower segment heating sheet 1803 are respectively the same as the heights of the upper tower-shaped electromagnetic coil 9, the middle tower-shaped electromagnetic coil 10, and the lower tower-shaped electromagnetic coil 11.

[0020] Preferably, there is an external heating sheet 22 in the rectangular groove 2002; one side of the external heating sheet 22 is attached to the inner surface of the rectangular groove 2002, and the other side of the external heating sheet 22 is a flat surface, which is slightly higher than the groove plane of the rectangular groove 2002; the material of the external heating sheet 22 is a ferromagnetic material.

[0021] Preferably, the smoking device further includes a smoking device housing assembly; the smoking device housing assembly includes: a smoking device upper shell 1 and a smoking device lower shell 2, which are connected by a buckle; the smoking device upper shell 1 is arranged on the periphery of the electromagnetic coil assembly, and a cigarette insertion hole 101 is opened on its upper end wall; the cigarette insertion hole 101 is adapted to the mouth of the first cigarette cup 15 or the second cigarette cup 20; a battery 5 is arranged in the smoking device lower shell 2, and the battery 5 is installed on the inner wall of the smoking device lower shell 2 through a battery mounting plate 6.

[0022] Advantages of the present invention:

[0023] The vacuum-insulated hot air heating smoking device of the present invention has a heating principle that cold air enters from the grooves on the inner wall of the tobacco cup, is heated by the side wall and the bottom plate of the tobacco cup, then enters from the bottom of the cigarette rod, and is sucked out from the filter end. When the cold air flows through the air flow channel, it is heated step by step. Combined with the conical surface on the upper surface of the bottom plate of the tobacco cup, the air flow is heated to the highest temperature at the bottom of the tobacco cup. At the same time, the non-grooved part of the inner wall of the tobacco cup has a heat conduction effect on the cigarette rod from the circumferential direction to the center. Combined with the vacuum insulation and heat preservation effect, the cigarette rod is always in a preheated state. In this way, the temperature drop of the hot air flow is reduced during the process of flowing from the bottom of the cigarette rod to the filter section, so that the aerosol of the entire cigarette core is fully released, thereby greatly increasing the utilization rate of the cigarette core. The heat for heating the cigarette core section comes from two parts. One is the hot air directly flowing through the cigarette core section to heat the cigarette core, and the other is the heat conduction from the circumferential direction to the axis of the cigarette core of the cigarette rod by the non-grooved part of the inner wall of the tobacco cup. This heating method can increase the utilization rate of the cigarette core and improve the smoking experience of consumers. At the same time, this air flow heating method is suitable for various types of cigarette cores such as granular, tobacco sheet type, and non-tobacco matrix. During the use of the smoking device, the condensate generated by the cigarette rod will not come into contact with the battery, circuit, and electronic components, etc., which improves the service life of the smoking device. The limiting ring makes the distance between the upper wall surface of the bottom plate of the tobacco cup and the tobacco cup 1 mm - 5 mm, aiming to leave sufficient space between the bottom of the cigarette rod and the bottom of the tobacco cup, so that the air flow can smoothly enter the bottom of the cigarette rod from the side wall of the tobacco cup. The upper surface of the bottom plate of the tobacco cup is designed as a conical surface. The advantage of this setting is that the distance between the vertex of the conical surface and the bottom of the cigarette core is the closest, so the temperature at the center position of the cigarette core is the highest.

[0024] The vacuum-insulated hot air heating smoking device of the present invention uses a tower-shaped electromagnetic coil with a gradually increasing radius from top to bottom; the energy density of the tower-shaped electromagnetic coil is different at different heights, and can be set according to actual conditions to improve the utilization rate of the tobacco core of the cigarette. In the heating smoking device of the present invention, the cigarette cup, the limiting ring, and the cigarette cup bottom plate jointly form a heating unit, with a simple structure and an air flow channel reserved. A number of grooves are evenly axially opened on the inner wall of the cigarette cup. Such a setting has two functions. One is to ensure the air flow channel; the other is to reduce the contact between the cigarette and the cigarette cup, preventing the overheating of the cigarette paper and causing bad odors; the cold air enters from the grooves on the side wall of the cigarette cup and is gradually heated when flowing through the air flow channel, so that the air flow is heated to the highest temperature on the upper end surface of the bottom of the cigarette cup; at the same time, the hot air flow in the grooves cooperates with the vacuum-insulated heating module to keep the cigarette in a preheated state all the time. In this way, the temperature drop of the hot air flow is reduced during the process of flowing from the bottom of the cigarette to the filter section, so that the aerosol of the entire tobacco core is fully released, thereby greatly increasing the utilization rate of the tobacco core. During the use of the smoking device, the condensate generated by the cigarette will not contact the battery, circuit, and electronic components, etc., improving the service life of the smoking device. The vacuum-insulated hot air heating smoking device of the present invention can be designed such that the tower-shaped electromagnetic coil generates an alternating magnetic field, and the materials of the cigarette cup and the cigarette cup bottom plate are heated; that is, the materials of the cigarette cup and the cigarette cup bottom plate are ferromagnetic materials, and the material of the heat insulation sleeve is preferably not affected by the tower-shaped electromagnetic coil; this mode of design is simple, but in the long term, it has an impact on the vacuum degree between the outer wall of the cigarette cup and the inner wall of the heat insulation sleeve.

[0025] The vacuum-insulated hot air heating smoking device of the present invention can also be designed such that the cigarette cup and the cigarette cup bottom plate have no effect on the electromagnetic coil, that is, they are not heated, but a heating sheet and an annular heating strip on the cigarette cup bottom plate are used for heating. In this way, the vacuum degree between the outer wall of the cigarette cup and the inner wall of the heat insulation sleeve can be maintained for a long time. The advantage of the heating sheet can also be that the heating sheet is divided into multiple segments, such as three segments; by controlling the heating of the heating sheets distributed on the side wall of the cigarette cup in segments, it can better adapt to cigarette core types such as granular cigarette cores, thin sheet cigarette cores, and cigarette cores with built-in sensors. When the smoking device is in use, cold air enters from the side wall of the cigarette, passes through the heating sheets arranged on the side wall and the heating strip on the cigarette cup bottom plate, and then enters from the bottom of the cigarette and is sucked out from the filter tip end; the air is gradually heated when flowing through the air flow channel, and in cooperation with the annular heating strip on the cigarette cup bottom plate, the air flow is heated to the highest temperature at the bottom of the cigarette cup. At the same time, the heating sheets arranged on the side wall are in direct contact with the cigarette to conduct heat from the circumference to the center. The hot air flow generated by the heating sheets and the vacuum heat insulation component keep the cigarette in a preheated state all the time. In this way, the temperature drop of the hot air flow is reduced during the process of flowing from the bottom of the cigarette to the filter tip section, enabling the full release of the aerosol of the entire cigarette core, thereby greatly increasing the utilization rate of the cigarette core. During the use of the smoking device, the condensate generated by the cigarette will not come into contact with the battery, circuit, and electronic components, etc., improving the service life of the smoking device. The three-section heating sheet and the tower-shaped electromagnetic coil are also divided into corresponding three parts; that is, the upper tower-shaped electromagnetic coil, the middle tower-shaped electromagnetic coil, and the lower tower-shaped electromagnetic coil; corresponding to the three sections of the heating sheet: the upper section heating sheet, the middle section heating sheet, and the lower section heating sheet; the lengths of the upper section heating sheet, the middle section heating sheet, and the lower section heating sheet are the same as the heights of the upper tower-shaped electromagnetic coil, the middle tower-shaped electromagnetic coil, and the lower tower-shaped electromagnetic coil respectively. The coil turn density of the upper tower-shaped electromagnetic coil, the middle tower-shaped electromagnetic coil, and the lower tower-shaped electromagnetic coil can be the same or different, and the energy density at different heights is different, and it can be set according to the actual situation to improve the utilization rate of the cigarette core. Taking the thin sheet type cigarette core material as an example, because the texture of the thin sheet type cigarette core is relatively tight, when the heated heat flow enters from the bottom of the cigarette core, the temperature drop is relatively large, which will cause the upper part of the cigarette core to be insufficiently heated. The tower-shaped electromagnetic coil can be set such that the coil radius becomes larger from top to bottom and the coil turns become sparser from top to bottom. In this way, after the tower-shaped electromagnetic coil is energized, the energy density at the upper end position is higher, making the temperature at the upper end position of the heating sheet higher. When the smoking device heats the cigarette, the heat generated at the upper end position of the heating sheet has a stronger heat conduction effect on the upward transmission of the cigarette core section, so as to enhance the utilization rate of the cigarette core. At this time, rectangular grooves can be opened between the arc-shaped grooves on the inner wall of the cigarette cup; heating sheets can be arranged in the rectangular grooves or not, depending on the type of the cigarette core section (such as granular cigarette cores, thin sheet cigarette cores, cigarette cores with built-in sensors, etc.) and the number of turns and density of the coil of the tower-shaped electromagnetic coil, bringing more choices for the use of the smoking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic external view of the vacuum-insulated hot air heating smoking device of the present invention.

[0027] Figure 2 Schematic diagram of the internal structure of the vacuum-insulated hot air heating smoking device of the present invention.

[0028] Figure 3 External view of the vacuum-insulated hot air heating smoking device of Embodiment 1 of the present invention.

[0029] Figure 4 is Figure 3 Schematic diagram of the cigarette cup and threaded base structure of the smoking device of

[0030] Figure 5 is Figure 3 Schematic diagram of the heat insulation sleeve structure of the smoking device of

[0031] Figure 6 is Figure 3 Schematic diagram of the cigarette cup bottom plate structure of the smoking device of

[0032] Figure 7 External view of the vacuum-insulated hot air heating smoking device of Embodiment 2 of the present invention.

[0033] Figure 8 is Figure 7 Schematic diagram of the cigarette cup structure of the vacuum-insulated hot air heating smoking device of

[0034] Figure 9 is Figure 7 Schematic diagram of the cigarette cup and threaded base structure of the smoking device of

[0035] Figure 10 is Figure 7 Schematic diagram of the cigarette cup bottom plate structure of the smoking device of

[0036] Figure 11 is Figure 10 Schematic diagram of the annular heating strip structure arranged on the cigarette cup bottom plate of

[0037] Figure 12 Schematic diagram of the electromagnetic coil assembly of Embodiment 3 of the present invention.

[0038] Figure 13 is Figure 12 Schematic diagram of the corresponding internal heating sheet.

[0039] Figure 14 is Figure 13 Schematic diagram of the arrangement of the internal heating sheet in the cigarette cup of

[0040] Figure 15 Schematic diagram of the arrangement of the internal heating sheet and external heating sheet in the cigarette cup of Embodiment 4 of the present invention.

[0041] The reference numerals are: 1, the upper shell of the smoking device; 101, the cigarette insertion hole; 2, the lower shell of the smoking device; 3, the upper mounting plate of the coil; 4, the lower mounting plate of the coil; 5, the battery; 6, the battery mounting plate; 7, the first partition plate; 8, the second partition plate; 9, the upper tower-shaped electromagnetic coil; 10, the middle tower-shaped electromagnetic coil; 11, the lower tower-shaped electromagnetic coil; 12, the first heat insulation sleeve; 1201, the trapezoidal opening; 120, the internal thread; 13, the threaded base; 130, the external thread; 14, the screw; 15, the first cigarette cup; 1501, the trapezoidal groove; 16, the limiting ring; 17, the bottom plate of the first cigarette cup; 1701, the first conical surface; 18, the internal heating sheet; 1801, the upper section heating sheet; 1802, the middle section heating sheet; 1803, and the lower section heating sheet; 1804, the first heat insulation sheet; 1805, and the second heat insulation sheet; 19, the second heat insulation sleeve; 190, the second external thread; 1901, the arc-shaped opening; 1902, the rectangular opening; 20, the second cigarette cup; 2001, the arc-shaped groove; 2002, the rectangular groove; 21, the bottom plate of the second cigarette cup; 2101, the second conical surface; 2102, the annular heating strip; 22, the external heating sheet. Detailed implementation manners

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention 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 only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] As Figures 1-6As shown in the figure, the vacuum-insulated hot air heating smoking device of the present invention includes: an electromagnetic coil assembly and a vacuum-insulated heating module; the electromagnetic coil assembly includes: a tower-shaped electromagnetic coil with a gradually increasing radius from top to bottom, a coil upper mounting plate 3 on its upper part of the coil, and a coil lower mounting plate 4 on its lower part of the coil; the vacuum-insulated heating module includes: a first cigarette cup 15 and a first heat insulation sleeve 12 around it, a vacuum space is formed between the outer wall of the first cigarette cup 15 and the inner wall of the first heat insulation sleeve 12, the first cigarette cup 15 and its first heat insulation sleeve 12 can be formed into a vacuum space by means of threads, sealant bonding, etc., or in other ways; a plurality of trapezoidal grooves 1501 are evenly axially formed on the inner wall of the first cigarette cup 15; the bottom of the first cigarette cup 15 is a first cigarette cup bottom plate 17, and the upper surface of the first cigarette cup bottom plate 17 is a first conical surface 1701; the first cigarette cup bottom plate 17 is installed on a threaded base 13, and there is a limiting ring 16 between the first cigarette cup bottom plate 17 and the first cigarette cup 15; the upper part of the threaded base 13 has an external thread 130; the inner wall bottom of the first heat insulation sleeve 12 is provided with a first internal thread 120, and the first internal thread 120 is adapted to the external thread 130; a plurality of trapezoidal openings 1201 are formed on the side wall of the upper end of the first heat insulation sleeve 12; the trapezoidal opening 1201 is adapted to the trapezoidal groove 1501; the materials of the first cigarette cup 15 and the first cigarette cup bottom plate 17 are ferromagnetic materials; the excitation frequency of the tower-shaped electromagnetic coil is above 100 kHz; preferably, the material of the heat insulation sleeve 8 is not affected by the tower-shaped electromagnetic coil; that is, the tower-shaped electromagnetic coil generates an alternating magnetic field, and the materials of the first cigarette cup 15 and the first cigarette cup bottom plate 17 are heated up; the first heat insulation sleeve 12, the threaded base 13, the first cigarette cup 15, the limiting ring 16, and the first cigarette cup bottom plate 17 are fixedly connected together by the threads of long screws 14 (not marked in the figure); or connected in other ways; the electromagnetic coil assembly is sleeved around the vacuum-insulated heating module. The smoking device also includes a smoking device housing assembly, such as Figures 1-2 As shown in the figure, the smoking device housing assembly includes: a smoking device upper shell 1 and a smoking device lower shell 2, which are connected by a buckle; the smoking device upper shell 1 is arranged around the electromagnetic coil assembly, and a cigarette insertion hole 101 is formed on its upper end wall; the cigarette insertion hole 101 is adapted to the mouth of the first cigarette cup 15 or the second cigarette cup 20; a battery 5 is arranged in the smoking device lower shell 2, and the battery 5 is installed on the inner wall of the smoking device lower shell 2 through a battery mounting plate 6.

[0044] Such as Figures 7-15As shown in the figure, another form of a vacuum-insulated hot air heating smoking device includes an electromagnetic coil assembly and a vacuum-insulated heating module. The electromagnetic coil assembly includes a tower-shaped electromagnetic coil with a gradually increasing radius from top to bottom, a coil upper mounting plate 3 on its upper part of the coil, and a coil lower mounting plate 4 on its lower part of the coil. The vacuum-insulated heating module includes a second smoke cup 20 and a second heat insulation sleeve 19 surrounding it. A vacuum space is formed between the outer wall of the second smoke cup 20 and the inner wall of the second heat insulation sleeve 19. A number of arc-shaped grooves 2001 are formed on the inner wall of the second smoke cup 20, and a rectangular groove 2002 is formed between two arc-shaped grooves 2001. One inner heating sheet 18 is arranged in each arc-shaped groove 2001. One side of the inner heating sheet 18 is an arc-shaped surface that fits the inner surface of the arc-shaped groove 2001, and the opposite side of the arc-shaped surface of the inner heating sheet 18 is a flat surface, which is lower than the groove plane of the arc-shaped groove 2001. The bottom of the second smoke cup 20 is a second smoke cup bottom plate 21, and the upper surface of the second smoke cup bottom plate 21 is a second conical surface 2101. The second smoke cup bottom plate 21 is installed on a threaded base 13, and there is a limiting ring 16 between the second smoke cup bottom plate 21 and the second smoke cup 20. An annular heating strip 2102 is arranged on the second conical surface 2101. The upper part of the threaded base 13 has an external thread 130. The bottom of the inner wall of the second heat insulation sleeve 19 has a second internal thread 190 (not marked in the figure), and the second internal thread 190 is adapted to the external thread 130. A number of arc-shaped openings 1901 and rectangular openings 1902 are formed on the side wall at the upper end of the second heat insulation sleeve 19. The arc-shaped openings 1901 are adapted to the arc-shaped grooves 2001, and the rectangular openings 1902 are adapted to the rectangular grooves 2002. The materials of the inner heating sheet 18 and the annular heating strip 2102 are ferromagnetic materials. The excitation frequency of the tower-shaped electromagnetic coil 7 is above 100 kHz. Among them, the materials of the second smoke cup 20, the second smoke cup bottom plate 21, and the second heat insulation sleeve 19 are preferably materials that are not affected by the tower-shaped electromagnetic coil. At this time, the inner heating sheet 18 and the annular heating strip 2102 play a heating role, that is, the tower-shaped electromagnetic coil generates an alternating magnetic field, and the materials of the inner heating sheet 18 and the annular heating strip 2102 are heated up, while the second smoke cup, the second smoke cup bottom plate 21, and the second heat insulation sleeve 19 are not heated. The second heat insulation sleeve 19, the threaded base 13, the second smoke cup 20, the limiting ring 16, and the second smoke cup bottom plate 21 are fixedly connected together by the threads of long screws 14, as Figure 7 shown; the electromagnetic coil assembly is sleeved around the vacuum-insulated heating module.

[0045] In a preferred embodiment, the tower-shaped electromagnetic coil is divided into three parts by a first partition plate 7 and a second partition plate 8: an upper tower-shaped electromagnetic coil 9, a middle tower-shaped electromagnetic coil 10, and a lower tower-shaped electromagnetic coil 11; each internal heating sheet 18 is divided into three segments: an upper segment heating sheet 1801, a middle segment heating sheet 1802, and a lower segment heating sheet 1803; the upper segment heating sheet 1801, the middle segment heating sheet 1802, and the lower segment heating sheet 1803 are respectively separated by a first heat insulation sheet 1804 and a second heat insulation sheet 1805; the lengths of the upper segment heating sheet 1801, the middle segment heating sheet 1802, and the lower segment heating sheet 1803 are respectively the same as the heights of the upper tower-shaped electromagnetic coil 9, the middle tower-shaped electromagnetic coil 10, and the lower tower-shaped electromagnetic coil 11, as Figures 12-14 shown.

[0046] In a preferred embodiment, as Figure 15 shown, there is an external heating sheet 22 in the rectangular groove 2002; one side of the external heating sheet 22 is attached to the inner surface of the rectangular groove 2002, and the other side of the external heating sheet 22 is a flat surface, which is slightly higher than the groove plane of the rectangular groove 2002; the material of the external heating sheet 22 is a ferromagnetic material;

[0047] The smoking device further includes a smoking device housing assembly, as Figures 1-2 shown, the smoking device housing assembly includes: a smoking device upper shell 1 and a smoking device lower shell 2, which are connected by a buckle; the smoking device upper shell 1 is arranged on the periphery of the electromagnetic coil assembly, and a cigarette insertion hole 101 is opened on its upper end wall; the cigarette insertion hole 101 is adapted to the mouth of the first cigarette cup 15 or the second cigarette cup 20; a battery 5 is arranged in the smoking device lower shell 2, and the battery 5 is installed on the inner wall of the smoking device lower shell 2 through a battery mounting plate 6.

[0048] The application of the vacuum heat-insulated hot air heating smoking device of the present invention for heating non-combustible cigarettes is as shown in the following embodiments:

[0049] Embodiment 1: Using the material heating method of the cigarette cup and the cigarette cup bottom plate, as Figures 3-6 shown.

[0050] Set the heating temperature; insert the heat-not-burn cigarette stick into the first cigarette cup 15 through the cigarette stick insertion hole 101, and the non-trapezoidal groove part of the inner wall of the first cigarette cup 15 radially positions the cigarette stick; the bottom of the cigarette stick is axially limited by the limiting ring 16, and the limiting ring 16 makes the distance between the upper wall surface of the bottom plate 17 of the first cigarette cup and the bottom of the first cigarette cup 15 be 1 mm - 5 mm. The purpose of this setting is to leave sufficient space between the bottom of the cigarette stick and the upper wall surface of the cigarette cup bottom plate 11, so that the air flow can smoothly enter the bottom of the cigarette stick from the side wall of the cigarette cup; start the battery 5 to be powered on, the tower-shaped electromagnetic coil generates an alternating magnetic field, the first cigarette cup 15 and the bottom plate 17 of the first cigarette cup are heated, and the non-trapezoidal groove part of the inner wall of the first cigarette cup 15 has a heat conduction effect on the cigarette stick from the circumferential direction to the center, and cooperates with the vacuum heat insulation member to keep the cigarette stick in a preheating state all the time. The air inside the first cigarette cup 15 also preheats the cigarette stick. The upper surface of the bottom plate 17 of the first cigarette cup is a conical curved surface 1701. The advantage of this setting is that the distance between the vertex of the conical curved surface and the bottom of the tobacco core is the closest, so the temperature at the center position of the tobacco core is the highest; this heating method will increase the utilization rate of the tobacco core and improve the smoking experience of consumers; after the preheating is completed, the consumer's suction drives the hot air stored in the trapezoidal groove 1501 on the side wall of the first cigarette cup 15 to flow towards the bottom plate 17 of the first cigarette cup. At this time, the air flow temperature of the bottom plate 17 of the first cigarette cup is the highest, and the hot air flow then enters the tobacco core section through the bottom plate 17 of the first cigarette cup to generate smoke, which is sucked out from the filter tip section of the cigarette stick and sucked into the mouth by the consumer. At this time, the heat for heating the tobacco core section comes from two parts. One is the hot air flowing directly through the tobacco core section to heat the tobacco core, and the other is the heat conduction from the circumferential direction to the axis of the tobacco core of the cigarette stick by the non-trapezoidal groove part of the inner wall of the first cigarette cup 15; this heating method will increase the utilization rate of the tobacco core and improve the smoking experience of consumers.

[0051] Embodiment 2: Use the heating method of heating with a heating sheet. There is only a heating sheet in the arc-shaped groove 2001, as Figures 7-11 shown.

[0052] Set the heating temperature; insert the heat-not-burn cigarette stick into the second cigarette cup 20 through the cigarette stick insertion hole 101, and the non-groove parts of the arc-shaped groove 2001 and the rectangular groove 2002 of the second cigarette cup 20 radially position the cigarette stick, and at the same time the cigarette stick does not directly contact the inner heating sheet 18; the bottom of the cigarette stick is axially limited by the limiting ring 16, so that the distance between the bottom of the second cigarette cup 20 and the upper end wall of the bottom plate 21 of the second cigarette cup is 1 mm - 5 mm; start the battery 5 to be powered on, the tower-shaped electromagnetic coil generates a high-frequency alternating magnetic field, and the inner heating sheet 18 and the annular heating strip 2102 are quickly heated, and the air inside the second cigarette cup 20 is heated to preheat the cigarette stick; after the preheating is completed, the consumer smokes, and the cold air enters from the side wall of the cigarette stick, driving the hot air stored in the arc-shaped groove 2001 on the side wall of the second cigarette cup 20 to flow towards the bottom of the second cigarette cup 20, and the hot air flow then enters the tobacco core section of the cigarette stick through the bottom of the cigarette stick for heating, and the generated smoke is sucked into the mouth by the consumer.

[0053] Embodiment 3: Using the heating sheet to raise the temperature for heating, there is a heating sheet only in the arc-shaped groove 2001, and the heating sheet is segmented, as Figures 12-14 shown.

[0054] Set the heating temperature; insert the heat-not-burn cigarette stick with a granular tobacco core or a thin-sheet tobacco core into the second cigarette cup 20 from the cigarette stick insertion hole 101. The non-arc-shaped groove 2001 and the rectangular groove 2002 of the second cigarette cup 20 radially position the cigarette stick. At the same time, the cigarette stick does not directly contact the inner heating sheet 18; the bottom of the cigarette stick is axially limited by the limiting ring 16, so that there is a distance of 1 mm - 5 mm between the bottom of the second cigarette cup 20 and the upper end wall of the second cigarette cup bottom plate 21; the tobacco core of the cigarette stick is at the same height as the middle section heating sheet 1802 and the lower section heating sheet 1803 in the axial position; start the battery 5 to be powered on, the middle tower-shaped electromagnetic coil 10 and the lower tower-shaped electromagnetic coil 11 generate an alternating magnetic field, so that the middle section heating sheet 1802 and the lower section heating sheet 1803 and the annular heating strip 2102 on the second cigarette cup bottom plate 21 quickly raise the temperature to heat the air inside the cigarette cup to preheat the cigarette stick; after the preheating is completed, the consumer's suction drives the hot air stored in the arc-shaped groove 2001 on the side wall of the second cigarette cup 20 to flow towards the bottom of the cigarette cup. At this time, the air flow temperature at the bottom of the cigarette cup is the highest, and the hot air then enters the tobacco core section through the bottom of the cigarette stick, and the generated smoke is sucked into the mouth by the consumer; or,

[0055] Set the heating temperature; insert the heat-not-burn cigarette stick with a sensor-embedded tobacco core into the second cigarette cup 20 from the cigarette stick insertion hole 101. The non-arc-shaped groove 2001 and the rectangular groove 2002 of the second cigarette cup 20 radially position the cigarette stick. At the same time, the cigarette stick does not directly contact the inner heating sheet 18; the bottom of the cigarette stick is axially limited by the limiting ring 16; the tobacco core of the cigarette stick is at the same height as the upper section heating sheet 1801 and the middle section heating sheet 1802 in the axial position; start the battery 5 to be powered on, the upper tower-shaped electromagnetic coil 9 and the middle tower-shaped electromagnetic coil 10 generate an alternating magnetic field, so that the upper section heating sheet 1801 and the middle section heating sheet 1802 are heated to preheat the cigarette stick; after the preheating is completed, the consumer sucks, and the temperature of the sensor-embedded tobacco core is relatively high, and the generated smoke is sucked into the mouth by the consumer; at the same time, it drives the hot air stored in the side wall of the cigarette cup to flow towards the bottom of the second cigarette cup 20. At this time, the air flow temperature at the bottom of the second cigarette cup 20 is relatively low, and the hot air then enters the tobacco core section through the bottom of the cigarette stick, and a part of the smoke can also be generated.

[0056] Embodiment 4: The vacuum heat insulation heating module is the same as that in Embodiment 2. Using the heating sheet to raise the temperature for heating, there is an inner heating sheet 18 in the arc-shaped groove 2001, and there is also an outer heating sheet 22 in the rectangular groove 2002; the inner and outer heating sheets are as Figure 15 shown; one side of the outer heating sheet 22 is attached to the inner surface of the rectangular groove 2002, and the other side of the outer heating sheet 22 is a plane, and this plane is slightly higher than the groove plane of the rectangular groove 2002.

[0057] Set the heating temperature; insert the heat-not-burn cigarette stick into the second cigarette cup 20 through the cigarette stick insertion hole 101. The external heating sheet 22 in the rectangular groove 2002 of the second cigarette cup 20 radially positions the cigarette stick. At the same time, the outer circumference of the cigarette stick does not directly contact the internal heating sheet 18 but directly contacts the external heating sheet 22. The bottom of the cigarette stick is axially limited by the limit ring 16, so that there is a distance of 1 mm - 5 mm between the bottom of the second cigarette cup 20 and the upper end wall of the second cigarette cup bottom plate 21. Start the battery 5 to be energized, and the tower-shaped electromagnetic coil generates a high-frequency alternating magnetic field. The internal heating sheet 18, the external heating sheet 22 and the annular heating strip 2102 quickly heat up. The external heating sheet 22 directly heats and preheats the circumference of the cigarette stick. After the preheating is completed, the consumer sucks. The cold air enters from the side wall of the cigarette stick, drives the hot air stored in the arc-shaped groove 2001 to the bottom of the arc-shaped groove 2001, and the hot air then enters the tobacco core section of the cigarette stick through the bottom of the cigarette stick for heating. The generated smoke is sucked into the mouth by the consumer.

[0058] The above is only used to introduce the specific implementation manners of the present invention in detail, but the technical solutions proposed by the present invention are not limited to the above methods. Without departing from the basic principle of the present technology, the equivalent modifications and changes made by those skilled in the art to the technology proposed by the present invention should all be covered within the scope of the claims of the present invention.

Claims

1. A vacuum-insulated hot air heating smoking device, characterized in that: It includes: Electromagnetic coil assembly and vacuum insulation heating module; The electromagnetic coil assembly comprises: a tower-shaped electromagnetic coil with a radius gradually increasing from top to bottom, an upper coil mounting plate (3) at the top, and a lower coil mounting plate (4) at the bottom; The vacuum insulation heating module comprises: a first cigarette cup (15) and a first heat-insulating sleeve (12) on the periphery thereof, wherein a vacuum space is formed between the outer wall of the first cigarette cup (15) and the inner wall of the first heat-insulating sleeve (12); a plurality of trapezoidal grooves (1501) are evenly opened axially on the inner wall of the first cigarette cup (15); the bottom of the first cigarette cup (15) is a first cigarette cup bottom plate (17), and the upper surface of the first cigarette cup bottom plate (17) is a first conical surface (1701); the first cigarette cup bottom plate (17) is mounted on a threaded base (13), and a limiting ring (16) is provided between the first cigarette cup bottom plate (17) and the first cigarette cup (15); The first cigarette cup (15) and the first cigarette cup bottom plate (17) are made of ferromagnetic materials; the excitation frequency of the tower-type electromagnetic coil is above 100 kHz; The electromagnetic coil assembly is sleeved on the periphery of the vacuum insulation heating module.

2. A vacuum-insulated hot air heating smoking device, characterized in that: It includes: Electromagnetic coil assembly and vacuum insulation heating module; The electromagnetic coil assembly comprises: a tower-shaped electromagnetic coil with a radius gradually increasing from top to bottom, an upper coil mounting plate (3) at the top, and a lower coil mounting plate (4) at the bottom; The vacuum insulation heating module comprises: a second cigarette cup (20) and a second insulation sleeve (19) on the periphery thereof, wherein a vacuum space is formed between the outer wall of the second cigarette cup (20) and the inner wall of the second insulation sleeve (19); the inner wall of the second cigarette cup (20) is provided with a plurality of arcuate grooves (2001), and a rectangular groove (2002) is provided between two arcuate grooves (2001); an inner heating plate (18) is arranged in each arcuate groove (2001); one side of the inner heating plate (18) is an arcuate surface which is in contact with the inner surface of the arcuate groove (2001); The surface opposite to the arcuate surface of the inner heating plate (18) is a plane, and the plane is lower than the groove plane of the arcuate groove (2001); the bottom of the second cigarette cup (20) is a second cigarette cup bottom plate (21), and the upper surface of the second cigarette cup bottom plate (21) is a second conical surface (2101); the second cigarette cup bottom plate (21) is installed on the threaded base (13), and a limiting ring (16) is provided between the second cigarette cup bottom plate (21) and the second cigarette cup (20); an annular heating strip (2102) is arranged on the second conical surface (2101); The inner heating plate (18) and the annular heating strip (2102) are made of ferromagnetic materials; the excitation frequency of the tower-type electromagnetic coil (7) is above 100 kHz; The electromagnetic coil assembly is sleeved on the periphery of the vacuum insulation heating module.

3. The vacuum-insulated hot air heating smoking device according to claim 2, characterized in that: The tower electromagnetic coil as a whole is divided into three parts by the first isolation plate (7) and the second isolation plate (8): an upper tower electromagnetic coil (9), a middle tower electromagnetic coil (10) and a lower tower electromagnetic coil (11); each internal heating plate (18) is divided into three sections: an upper heating plate (1801), a middle heating plate (1802) and a lower heating plate (1803); the upper heating plate (1801), the middle heating plate (1802) and the lower heating plate (1803) are respectively separated by a first heat insulation plate (1804) and a second heat insulation plate (1805); the lengths of the upper heating plate (1801), the middle heating plate (1802) and the lower heating plate (1803) are respectively the same as the heights of the upper tower electromagnetic coil (9), the middle tower electromagnetic coil (10) and the lower tower electromagnetic coil (11).

4. The vacuum-insulated hot air heating smoking device according to claim 2, characterized in that: An external heating plate (22) is disposed in the rectangular groove (2002); one side of the external heating plate (22) is in contact with the inner surface of the rectangular groove (2002), and the other side of the external heating plate (22) is a plane that is slightly higher than the groove plane of the rectangular groove (2002); the material of the external heating plate (22) is a ferromagnetic material.

5. The vacuum-insulated hot air heating smoking device according to any one of claims 1 or 2, characterized in that: The smoking device further comprises a smoking device shell assembly; the smoking device shell assembly comprises: a smoking device upper shell (1) and a smoking device lower shell (2), the two being connected by a snap fastener; the smoking device upper shell (1) is arranged at the periphery of the electromagnetic coil assembly, and a cigarette insertion hole (101) is provided on the upper end wall thereof; a battery (5) is arranged in the smoking device lower shell (2), and the battery (5) is mounted on the inner wall of the smoking device lower shell (2) via a battery mounting plate (6).

Images