Dual-heating electronic smoking set

Abstract

The utility model discloses a double-heating electronic smoking set, which comprises a shell and a baking device, the baking device comprises a support plate, a heating tube, a cylindrical base and an electromagnetic coil, the inner diameter of the heating tube is larger than the outer diameter of a cigarette, and ribs for exactly clamping the cigarette are arranged on the inner wall of the cylindrical base. The upper portion of the heating pipe is sleeved with a support through hole, a sealing guide sleeve is further arranged in the support through hole in a sleeved mode, the inner diameter of the middle of a sleeve hole of the sealing guide sleeve is reduced to just clamp the cigarette, an air inlet through hole is formed in the connecting position of the lower portion of the sealing guide sleeve and the support plate in a radial penetrating mode, and the air inlet through hole is communicated with the air inlet through hole. And the air inlet through hole, a gap between the cigarette and the heating tube and a gap between the cigarette and the side wall and the bottom wall of the cylindrical base are communicated to form an air inlet channel. The double-heating tobacco baking oven has the beneficial effects that a double-heating mode is arranged, and the two modes can be applied in sequence or simultaneously, so that the tobacco is prevented from being heated unevenly, and the tobacco can be fully baked and utilized without causing waste.

Description

Technical Field

[0001] This utility model relates to the technical field of heated non-combustible electronic cigarette devices, and more specifically, to a dual-heating electronic cigarette device. Background Technology

[0002] Heated tobacco products (HTMP) work by heating the tobacco inside a cigarette, causing a pyrolysis reaction. This heats the tobacco to a level sufficient to release its flavor and smoke without burning it, providing a similar satisfaction to smoking a cigarette while significantly reducing the production of harmful substances during cigarette combustion, thus avoiding the inhalation of these harmful substances.

[0003] Existing heated tobacco products are devices that utilize heated tobacco technology. They generally include a casing, a power supply component, and a heating component. The power supply component contains a battery that powers the heating component, which, when powered, heats the tobacco portion of the cigarette to produce smoke. The cigarette typically consists of a mouthpiece and a tobacco portion. The tobacco portion includes tobacco material that produces smoke, and this tobacco material can also be made by absorbing a portion of nicotine, e-liquid, or flavoring components.

[0004] Existing heated tobacco products on the market have relatively simple heating methods, and the heating method cannot be selected according to needs. Current heating methods generally include resistance heating or electromagnetic induction heating. Resistance heating uses a heating resistor as the heat source, which can only directly heat the outer edges of the cigarette. Electromagnetic induction heating uses an induction material, such as an induction sheet, as the heat source, which can only heat the inside of the cigarette. Both methods limit the heating of the tobacco to localized, concentrated areas, resulting in uneven heating. The tobacco parts farther from the heat source are not fully heated, leading to waste. Utility Model Content

[0005] This invention provides a dual-heating electronic cigarette device to overcome the above-mentioned technical deficiencies.

[0006] The technical solution of this utility model is implemented as follows: A dual-heating electronic cigarette device is used to heat and bake a cigarette to produce cigarette smoke. The cigarette includes a mouthpiece section and a tobacco section. A sensing material is disposed within the tobacco section. The sensing material can sense an electromagnetic magnetic field and generate heat. The electronic cigarette device includes a housing and a baking device disposed within the housing. The baking device includes a support plate, a heating tube, a cylindrical base coaxially connected to the bottom of the heating tube, and an electromagnetic coil sleeved on the outside of the heating tube and the cylindrical base, all connected in sequence. The inner diameter of the heating tube is larger than the outer diameter of the cigarette. The inner wall of the cylindrical base is provided with ribs that precisely hold the cigarette stick. The bottom wall of the cylindrical base is provided with protrusions to support the bottom of the cigarette stick. The upper part of the heating tube is sleeved in the support through hole of the support plate. A sealing guide sleeve is also sleeved in the support through hole. The inner diameter of the middle part of the sleeve hole of the sealing guide sleeve is reduced to just hold the cigarette stick. The lower part of the sealing guide sleeve is radially provided with an air inlet hole at the connection between it and the support plate. The air inlet hole, the gap between the cigarette stick and the heating tube, and the gap between the cigarette stick and the side wall and bottom wall of the cylindrical base are connected to form an air inlet channel.

[0007] Preferably, a connecting sleeve is provided between the heating tube and the support through hole of the support plate, and the connecting sleeve is located below the sealing guide sleeve.

[0008] Preferably, the bracket plate is further provided with a pressure plate that presses the sealing guide sleeve and exposes the sleeve hole of the sealing guide sleeve.

[0009] Preferably, the heating element is composed of a tubular ceramic heating element, a tubular heating coil, or a tubular metal heating element.

[0010] Preferably, the heating element includes a metal heat-conducting pipe and a heating coil that is closely attached to the outer wall of the metal heat-conducting pipe.

[0011] Preferably, the outer wall of the metal heat pipe is oxidized to form an oxide layer.

[0012] Preferably, the metal heat pipe is made of aluminum or an aluminum alloy.

[0013] Preferably, the electromagnetic coil is surrounded by a heat-insulating sleeve.

[0014] Preferably, the sealing guide sleeve is made of high-temperature resistant silicone material.

[0015] Preferably, the cylindrical base and the sealing guide sleeve are made of high-temperature resistant plastic material.

[0016] Preferably, the bracket plate has a bracket cavity on the other side of the bracket through hole, and an optical sensor is provided in the bracket cavity aligned with the air inlet through hole. The optical sensor is used to detect whether the cigarette is inserted into the heating tube.

[0017] Preferably, the bracket plate has a bracket cavity on the other side of the bracket through hole, and an airflow sensor is provided in the bracket cavity aligned with the air inlet through hole. The airflow sensor is used to detect whether there is an intake airflow at the air inlet through hole.

[0018] Preferably, the device further includes a battery and a circuit control device disposed within the housing, the circuit control device including a microprocessor.

[0019] Preferably, the circuit control device further includes a temperature sensor disposed on the outer wall of the heating element.

[0020] Preferably, the circuit control device is further provided with a heating switch for switching between heating tube heating mode and / or electromagnetic induction heating mode. The heating switch includes a manual switching mode or an automatic switching mode.

[0021] The beneficial effects of this invention's dual-heating electronic cigarette device are as follows: This invention's electronic cigarette device has a dual heating method, including a resistance heating method using a heating element and an induction heating method using an electromagnetic coil. The two methods can be switched so that they can be used sequentially or simultaneously. This avoids localized and concentrated heating and baking of the tobacco inside the cigarette, prevents uneven heating of the tobacco, and ensures that the tobacco can be fully baked and utilized without waste. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the dual-heating electronic cigarette device of this utility model;

[0023] Figure 2 A cross-sectional view of the cigarette stick applicable to the dual-heating electronic cigarette device of this utility model;

[0024] Figure 3 This is a cross-sectional view of the baking device of the dual-heating electronic cigarette device of this utility model;

[0025] Figure 4 A cross-sectional view of the heating device of the dual-heating electronic cigarette device of this utility model when a cigarette is inserted;

[0026] Figure 5 This is an exploded perspective view of the baking device of the dual-heating electronic cigarette device of this utility model;

[0027] Figure 6 This is a perspective view of the cylindrical base of the dual-heating electronic cigarette device of this utility model;

[0028] Figure 7This is an exploded perspective view of the heating element in another embodiment of the dual-heating electronic cigarette device of this utility model. Detailed Implementation

[0029] 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 for explaining the present utility model and are not intended to limit the present utility model.

[0030] This utility model relates to a dual-heating electronic cigarette device. For ease of description, as follows: Figure 1 As shown, the electronic cigarette device of this utility model is placed vertically with the insertion port 110 facing upwards. If there are descriptions in this article regarding the various parts of the electronic cigarette device such as "upper, lower, upper part, lower part, bottom, upper end, lower end, top end, bottom end, above, below, bottom surface, upward, downward, horizontal, vertical", they all refer to the positional relationship of the various parts when the electronic cigarette device is placed vertically with the insertion port 110 facing upwards.

[0031] Example

[0032] This invention relates to a dual-heating electronic cigarette device, which allows for the insertion of a cigarette and simultaneous heating and baking of both the outer wall and the interior of the cigarette.

[0033] like Figure 1 As shown, this utility model of a dual-heating electronic cigarette device includes a housing 1 and a heating device 2, a circuit control device 3, and a battery 4 disposed within the housing 1. The heating device 2 is located at the upper part of the device, while the circuit control device 3 and the battery 4 are located at the lower part. The upper end of the device has an upper cover 11, and the lower end has a bottom cover 12. The upper cover 11 has an insertion port 110 for inserting a cigarette into the heating device 2. Next to the insertion port 110 is a sliding cover 111, which can slide parallel to the insertion port 110 to cover the insertion port 110 when the device is not in use, preventing debris from falling into the heating device. A push-button switch 30 is also provided on the side of the housing 1. The push-button switch 30 can turn the electronic cigarette device on or off and is part of the circuit control device 3. A display screen 34 is also provided on the side of the housing 1 to display the control parameters of the device; the display screen 34 is also part of the circuit control device 3.

[0034] like Figure 2 As shown, the cigarette stick 5 adapted for use in the dual-heating electronic cigarette device of this utility model includes a mouthpiece section 51 and a tobacco section 52. The mouthpiece section 51 includes a filter material for filtering out impurities, e-liquid, condensate, etc. in the smoke. The tobacco section 52 includes a roastable material such as tobacco for heating to produce cigarette smoke. The tobacco section 52 is also provided with a sensing material, such as a sensing iron plate 53, which can sense an electromagnetic magnetic field and generate heat.

[0035] like Figure 3 , Figure 4 As shown, the dual-heating electronic cigarette device of this embodiment includes a heating device 2 comprising a support plate 24, a connecting sleeve 23, a heating element 22, a cylindrical base 21 coaxially connected to the bottom of the heating element 22, and an electromagnetic coil 27 sleeved on the outside of the heating element 22 and the cylindrical base 21. The heating element 22 is clamped and fixed between the connecting sleeve 23 and the cylindrical base 21. The connecting sleeve 23 and the cylindrical base 21 are made of high-temperature resistant plastic material, such as PEEK, so that the connecting sleeve 23 and the cylindrical base 21 can still support and fix the heating element 22 without deformation when it operates at high temperatures. Simultaneously, since the heating element 22 is not directly connected to the housing 1, and the connecting sleeve 23 and the cylindrical base 21 are not good conductors of heat, the heat from the heating element 22 is prevented from being directly conducted to the housing 1, thus avoiding burns. The connecting sleeve 23 is fixedly connected to the lower part of the support plate 24. In other embodiments, the connecting sleeve 23 and the support plate 24 can be molded as a single unit.

[0036] like Figures 3-6 As shown, the inner diameter of the heating element 22 is larger than the outer diameter of the cigarette 5, so that when the cigarette 5 is inserted into the heating element 22, a gap is formed between the cigarette 5 and the heating element 22 to allow air to enter. The inner wall of the cylindrical base 21 has ribs 211 that precisely hold the cigarette 5, so that after the cigarette 5 is inserted into the cylindrical base 21, a gap is also formed between the cigarette 5 and the side wall of the cylindrical base 21 and its ribs 211 to allow air to enter. The bottom wall of the cylindrical base 21 has protrusions 212 for supporting the bottom of the cigarette 5. The protrusions 212 can be correspondingly connected to the ribs 211, and the protrusions 212 also create a gap between the bottom of the cigarette 5 and the bottom wall of the cylindrical base 21 to allow air to enter the bottom of the cigarette 5.

[0037] The support plate 24 has a support through hole 240. The upper part of the heating tube 22, together with the connecting sleeve 23, is fitted into the support through hole 240 of the support plate 24. A sealing guide sleeve 25 is also fitted into the support through hole 240. The sealing guide sleeve 25 is located in the support through hole 240 and above the connecting sleeve 23, that is, the connecting sleeve 23 is located below the sealing guide sleeve 25. The sealing guide sleeve 25 has a sleeve hole 250 for inserting the cigarette 5. The inner diameter 251 of the middle part of the sleeve hole 250 of the sealing guide sleeve 25 is narrowed to just hold the cigarette 5. The sealing guide sleeve 25 is made of high-temperature resistant silicone material so that it has sealing performance under high-temperature working conditions.

[0038] like Figure 4As shown, after the cigarette stick 5 is inserted into the smoking device, the upper part of its insertion part is held by the middle inner diameter 251 of the sealing guide sleeve 25, and the lower part is held by the ribs 211 of the cylindrical base 21. Therefore, a gap is formed between the outer wall of the insertion part of the cigarette stick 5 and the inner wall of the heating tube 22 and the cylindrical base 21, and this gap constitutes part of the air intake channel 200.

[0039] like Figure 3 , Figure 4 As shown, an air inlet hole 252 is radially provided at the connection between the lower part of the sealing guide sleeve 25 and the support plate 24. The air inlet hole 252, the gap between the cigarette 5 and the heating tube 22, and the gap between the cigarette 5 and the side wall and bottom wall of the cylindrical base 21 are connected to form an air inlet channel 200.

[0040] The sealing guide sleeve 25 can seal the connection gap between the support plate 24 and the connecting sleeve 23. At the same time, the axial middle inner diameter of the sealing guide sleeve 25 is reduced, and the inner diameters at both ends of its axial direction are larger than the middle inner diameter 251. In this way, the sealing guide sleeve 25 can stably clamp the cigarette 5. After the cigarette 5 is inserted into the sleeve hole 250, a sealed and seamless connection is formed between the middle inner diameter 251 of the sleeve hole and the cigarette 5. This can prevent the air intake channel 200 from being directly connected to the outside air, so that the air intake channel 200 is only connected to the air intake through hole 252. That is, the airflow entering the air intake channel 200 must first pass through the air intake through hole 252.

[0041] The support plate 24 is also provided with a pressure plate 26 that presses down the sealing guide sleeve 25 and exposes the sleeve hole 250 of the sealing guide sleeve 25. The pressure plate 26 is used to fix the sealing guide sleeve 25 and has a pressure plate through hole 260. The pressure plate through hole 260, the sleeve hole 250 of the sealing guide sleeve 25, the support through hole 240 are coaxially connected to the connecting sleeve 23, the heating tube 22, and the cylindrical base 21 so as to insert the cigarette 5.

[0042] like Figure 3 , Figure 4 As shown, in this embodiment, the outer side of the electromagnetic coil 27 is surrounded by a heat insulation sleeve 28. The heat insulation sleeve 28 can greatly reduce the heat generated by the heating tube 22 during operation and conduct and radiate outward, so that the heat is more concentrated in the heating tube 22 and the outer shell 1 is not hot to the touch during use.

[0043] A bracket plate 24 has a bracket cavity 241 on the other side of the bracket through hole 240. The bracket cavity 241 can be used to accommodate and install sensors and other accessories. In this embodiment, an optical sensor 31 is provided in the bracket cavity 241, aligned with the air inlet hole 252. The optical sensor 31 can emit a detection beam aligned with the air inlet hole 252 to detect whether the cigarette 5 is inserted into the heating element 22. An airflow sensor 32 is also provided in the bracket cavity 241, aligned with the air inlet hole, to detect whether there is an intake airflow at the air inlet hole 251. The optical sensor 31 and the air pressure sensor 32 are part of the circuit control device 3.

[0044] In this embodiment, the circuit control device 3 includes a microprocessor (not shown in the figure) and a temperature sensor 33 disposed on the outer wall of the heating tube 22. The temperature sensor 33 is also part of the circuit control device 3. The temperature sensor 33 can be used to detect the temperature of the heating tube 22, which is equivalent to detecting the heating temperature of the cigarette 5, and feed it back to the microprocessor to control the input power of the heating tube 22 or the electromagnetic coil 27, so as to control the heating temperature of the heating tube 22 or the cigarette 5, thereby controlling the heat output, temperature and smoke volume of the tobacco device in baking the cigarette. When the temperature is detected to be too high, heating can be stopped to avoid the tobacco material from burning and producing a burnt taste due to excessive heating temperature.

[0045] In this embodiment, the heating element 22 is composed of a tubular ceramic heating body. The heating element 22 is connected to electrode leads 223, which are electrically connected to the circuit control device 3 and the battery 4 to obtain power. The two ends of the electromagnetic coil 27 are also electrically connected to the circuit control device 3 and the battery 4 to obtain power. When the electromagnetic coil 27 is energized, it generates an electromagnetic field. The electromagnetic field can penetrate the cylindrical base 21 and the heating element 22, causing the inductive material inside the cigarette 5 to generate eddy currents in the electromagnetic field, and further generating enough heat to heat the tobacco material, causing the tobacco material to produce cigarette smoke.

[0046] like Figures 3-5 As shown, the dual heating methods of this electronic cigarette device include resistance heating by a heating element and induction heating by an electromagnetic coil. Resistance heating by the heating element refers to the heating element 22 heating the airflow within the air intake channel 200 after being energized, with the hot airflow further entering the interior of the cigarette 5 to heat the tobacco material. Induction heating by the electromagnetic coil refers to the electromagnetic coil 27 generating an electromagnetic field after being energized, causing eddy currents to form in the induction material inside the cigarette 5, which in turn generate heat to heat the tobacco material.

[0047] The circuit control device 3 of this utility model electronic cigarette device is also provided with a heating switch (not shown in the figure) to switch the heating working mode of the cigarette device to heating tube heating mode and / or electromagnetic induction heating mode. The heating switch can be set to manual switching mode and automatic switching mode, and different heating modes can be switched when the cigarette device is working.

[0048] When switched to resistance heating mode using the heating element, the baking device 2 of this electronic cigarette device, upon insertion of the cigarette 5, is activated by the optical sensor 31, triggering the heating device 2 to power on the heating element 22 for preheating. The inner wall of the heating element 22 conducts heat to the air in the air intake channel 200, and some heat is directly radiated to the outer wall of the cigarette 5. After the preset preheating time is reached, the circuit control device 3 issues a preheating end indication, and the user can then begin smoking through the mouthpiece section 51 of the cigarette. When the user smokes, an upward airflow of smoke is generated inside the cigarette 5, which... Figure 4 As indicated by the continuous upward-pointing hollow arrows. At this time, a negative pressure is generated inside the cigarette 5 and the heating element 22, allowing outside air to enter the air intake channel 200 through the air intake hole 252, forming an intake airflow. This intake airflow is as follows: Figure 4 As indicated by the continuous solid arrow pointing downwards. At this time, the air pressure sensor 32 detects the inhaled airflow, which can trigger the heating tube 22 to continue to be powered on for heating. The inner wall of the heating tube 22 radiates heat to the outside of the cigarette on one hand, and continues to heat the inhaled airflow in the air intake channel 200 on the other hand. The heated air continues to flow into the interior of the cigarette 5. The tobacco material inside the cigarette 5 receives heat from the hot air introduced from the bottom of the cigarette, so that the tobacco material inside the cigarette 5 receives heat from both radiation and air conduction and is heated rapidly, thereby producing smoke. The smoke is carried upward by the inhaled airflow entering the cigarette 5 and forms a smoke airflow that is sucked out from the mouthpiece section 51 of the cigarette.

[0049] When switched to the induction heating mode of the electromagnetic coil, the heating device 2 of this electronic cigarette device, when the cigarette 5 is inserted, the optical sensor 31 detects the insertion of the cigarette, triggering the heating device 2 to start and energizing the electromagnetic coil 27. An electromagnetic field is generated inside the electromagnetic coil 27, and the induction iron plate 53 inside the cigarette 5 generates eddy currents within the electromagnetic field. These eddy currents further generate heat on the induction iron plate 53, preheating the tobacco material. After the preset preheating time is reached, the circuit control device 3 issues an indication that preheating is complete, and the user can then begin smoking through the mouthpiece section 51 of the cigarette. When the user smokes, an upward airflow of smoke is generated inside the cigarette 5. This airflow... Figure 4 As indicated by the continuous upward-pointing hollow arrows. At this time, a negative pressure is generated inside the cigarette 5 and the heating element 22, allowing outside air to enter the air intake channel 200 through the air intake hole 252, forming an intake airflow. This intake airflow is as follows: Figure 4As indicated by the continuous solid arrow pointing downwards. At this time, the air pressure sensor 32 detects the inhaled airflow, which can trigger the electromagnetic coil to continue to be energized to heat the tobacco material, thereby generating smoke. This smoke is carried upwards by the inhaled airflow entering the cigarette 5 and forms a smoke stream that is drawn out from the mouthpiece section 51 of the cigarette.

[0050] The above two heating methods are manually switched via a heating switch to obtain a single heating mode. In manual switching mode, the user needs to judge the heating status of the cigarette. If the resistance heating method of the heating element is used first, the tobacco material on the outer part of the cigarette may be heated and used up, while the tobacco material in the center of the cigarette may not be completely consumed. At this time, the induction heating method of the electromagnetic coil can be used, so that the induction iron plate in the center of the cigarette heats up to continue heating the tobacco material in the center of the cigarette until it is fully utilized. Conversely, the same applies if the induction heating method of the electromagnetic coil is used first and then the resistance heating method of the heating element is used. Therefore, the dual-heating electronic cigarette device of this invention can avoid localized heating of the tobacco material inside the cigarette, avoid uneven heating of the tobacco material, and ensure that the tobacco material is fully heated without waste.

[0051] This invention relates to a dual-heating electronic cigarette device, which can also be automatically controlled through automatic mode switching. When needed, both heating modes can be operated simultaneously, ensuring uniform heating while also providing faster heating, higher heating output, and greater vapor production. Alternatively, one mode can be automatically operated at different heating stages as required, making the heating process more flexible and efficient.

[0052] In other embodiments, the heating element 22 may be composed of a tubular heating coil or a tubular metal heating element.

[0053] like Figure 7 As shown, in other embodiments, the heating element 22 may also consist of a metal heat-conducting pipe 221 and a heating coil 222 closely attached to the outer wall of the metal heat-conducting pipe, with electrode leads 223 connected to the heating coil 222. To achieve better thermal conductivity, the metal heat-conducting pipe 221 is made of aluminum or an aluminum alloy. The outer wall of the metal heat-conducting pipe 221 is oxidized to form an oxide layer, which has good insulation properties and, because the oxide layer is very thin, does not affect the thermal conductivity. In particular, when the metal heat-conducting pipe 221 is made of aluminum or an aluminum alloy, the oxide layer is an aluminum oxide layer, which has excellent insulation and thermal conductivity properties.

[0054] In other embodiments, the circuit control device 3 further includes an accelerometer or gravity sensor for detecting the movement state of the smoking device, and a touch sensor for sensing human touch actions. The accelerometer or gravity sensor detects the movement state of the smoking device and can initiate preheating or power-on / off procedures in advance by detecting human smoking actions. The touch sensor can sense human touch actions and trigger the power-on / off procedure, thus replacing the button switch.

[0055] The above description is merely a preferred embodiment of the present utility model, and the specific embodiments described above are not intended to limit the present utility model. Various modifications and variations can be made within the scope of the technical concept of the present utility model. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present utility model.

Claims

1. A dual heated electronic smoking article for heating a smoking article to produce cigarette smoke, the smoking article comprising a mouthpiece section and a tobacco section, the tobacco section having an inductive material disposed therein, the inductive material being inductive to an electromagnetic field to generate heat, characterised in that, The application relates to a cigarette roasting device, which comprises a shell and a roasting device arranged in the shell, wherein the roasting device comprises a support plate, a heating tube, a cylindrical base coaxially connected to the bottom of the heating tube and an electromagnetic coil sleeved outside the heating tube and the cylindrical base; the inner diameter of the heating tube is larger than the outer diameter of the cigarette; the inner wall of the cylindrical base is provided with ribs for clamping the cigarette; the bottom wall of the cylindrical base is provided with a protrusion for supporting the bottom of the cigarette; the upper part of the heating tube is sleeved in a support through hole of the support plate; a sealing guide sleeve is also sleeved in the support through hole; the middle part of the sleeve hole of the sealing guide sleeve is reduced in diameter to clamp the cigarette; a gas inlet through hole is radially arranged at the connection between the lower part of the sealing guide sleeve and the support plate; the gas inlet through hole, the gap between the cigarette and the heating tube, the gap between the cigarette and the side wall and the bottom wall of the cylindrical base are communicated to form a gas inlet channel.

2. The dual heated electronic vaporizer of claim 1, wherein, A connecting sleeve is arranged between the heating tube and the support through hole of the support plate, and the connecting sleeve is arranged below the sealing guide sleeve.

3. The dual heated electronic smoking article of claim 1, wherein, A pressing cover plate is arranged on the support plate to press the sealing guide sleeve and expose the sleeve hole of the sealing guide sleeve.

4. The dual heated electronic smoking article of claim 1, wherein, The heating tube is composed of a tubular ceramic heating body, a tubular heating coil or a tubular metal heating body.

5. The dual heated electronic smoking article of claim 1, wherein, The heating tube comprises a metal heat conduction tube and a heating coil closely arranged on the outer wall of the metal heat conduction tube.

6. The dual heated electronic smoking article of claim 5, wherein, The outer wall of the metal heat conduction tube is oxidized to form an oxidation layer.

7. The dual heated electronic smoking article of claim 5, wherein, The metal heat conduction tube is made of aluminum or aluminum alloy material.

8. The dual heated electronic smoking article of claim 1, wherein, A heat preservation and heat insulation sleeve is arranged outside the electromagnetic coil.

9. The dual heated electronic smoking article of claim 1, wherein, The sealing guide sleeve is made of high-temperature-resistant silica gel material.

10. The dual heated electronic smoking device of claim 2, wherein, The cylindrical base and the sealing guide sleeve are made of high-temperature-resistant plastic material.

11. The dual heated electronic smoking article of claim 1, wherein, A support cavity is arranged on the other side of the support plate of the support through hole, and an optical sensor is arranged in the support cavity and aligned with the gas inlet through hole, so that the optical sensor is used for detecting whether the cigarette is inserted into the heating tube.

12. The dual heated electronic smoking article of claim 1, wherein, A support cavity is arranged on the other side of the support plate of the support through hole, and an air flow sensor is arranged in the support cavity and aligned with the gas inlet through hole, so that the air flow sensor is used for detecting whether there is air flow at the gas inlet through hole.

13. The dual heated electronic smoking article of claim 1, wherein, A battery and a circuit control device are arranged in the shell, and the circuit control device comprises a microprocessor.

14. The dual heated electronic vaporizer of claim 13, wherein, The circuit control device further comprises a temperature sensor arranged on the outer wall of the heating tube.

15. The dual heated electronic vaporizer of claim 13, wherein, The circuit control device further comprises a heating switching switch used for switching the heating mode of the heating tube and / or the electromagnetic induction heating mode, and the heating switching switch comprises a manual switching mode or an automatic switching mode.

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